Adding upstream version 1:10.11.6.upstream/1%10.11.6upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

97 files changed, 11346 insertions, 0 deletions

diff --git a/libmariadb/plugins/CMakeLists.txt b/libmariadb/plugins/CMakeLists.txt
new file mode 100644
index 00000000..3b0e5e83
--- /dev/null
+++ b/libmariadb/plugins/CMakeLists.txt
@@ -0,0 +1,9 @@
+SET(PLUGIN_EXTRA_FILES ${CC_SOURCE_DIR}/libmariadb/ma_errmsg.c)
+
+
+FILE(GLOB plugin_dirs ${CC_SOURCE_DIR}/plugins/*)
+FOREACH(dir ${plugin_dirs})
+  IF (EXISTS ${dir}/CMakeLists.txt)
+    INCLUDE(${dir}/CMakeLists.txt)
+  ENDIF()
+ENDFOREACH()
diff --git a/libmariadb/plugins/auth/CMakeLists.txt b/libmariadb/plugins/auth/CMakeLists.txt
new file mode 100644
index 00000000..83e324b9
--- /dev/null
+++ b/libmariadb/plugins/auth/CMakeLists.txt
@@ -0,0 +1,142 @@
+SET(AUTH_DIR ${CC_SOURCE_DIR}/plugins/auth)
+
+INCLUDE_DIRECTORIES(${AUTH_DIR})
+INCLUDE_DIRECTORIES(${CC_SOURCE_DIR}/include)
+
+SET(CRYPTO_PLUGIN 1)
+IF(WIN32)
+  ADD_DEFINITIONS(-DHAVE_WINCRYPT)
+  SET(CRYPT_SOURCE ${CC_SOURCE_DIR}/libmariadb/secure/win_crypt.c)
+  SET(CRYPT_LIBS crypt32 bcrypt)
+ELSEIF(WITH_SSL STREQUAL "OPENSSL")
+  SET(CRYPT_SOURCE ${CC_SOURCE_DIR}/libmariadb/secure/openssl_crypt.c)
+  SET(CRYPT_LIBS ${SSL_LIBRARIES})
+ELSEIF(WITH_SSL STREQUAL "GNUTLS")
+  SET(CRYPT_SOURCE ${CC_SOURCE_DIR}/libmariadb/secure/gnutls_crypt.c)
+  IF (NOT SSL_LIBRARIES MATCHES "^.*\\.a$")
+    SET(CRYPT_LIBS ${SSL_LIBRARIES})
+  ENDIF()
+ELSE()
+  UNSET(CRYPTO_PLUGIN)
+ENDIF()
+
+#native password
+REGISTER_PLUGIN(TARGET mysql_native_password
+                TYPE MARIADB_CLIENT_PLUGIN_AUTH
+                CONFIGURATIONS STATIC
+                DEFAULT STATIC
+                SOURCES ${CC_SOURCE_DIR}/plugins/auth/my_auth.c)
+
+#Dialog client authentication plugin
+REGISTER_PLUGIN(TARGET dialog
+                TYPE MARIADB_CLIENT_PLUGIN_AUTH
+                CONFIGURATIONS DYNAMIC STATIC OFF
+                DEFAULT DYNAMIC
+                SOURCES ${CC_SOURCE_DIR}/plugins/auth/dialog.c
+                        ${CC_SOURCE_DIR}/libmariadb/get_password.c)
+
+
+# Crypto plugins
+IF(CRYPTO_PLUGIN)
+
+  #ED25519 client authentication plugin
+  SET(REF10_DIR ${CC_SOURCE_DIR}/plugins/auth/ref10)
+  SET(REF10_SOURCES ${REF10_DIR}/fe_0.c ${REF10_DIR}/fe_isnegative.c ${REF10_DIR}/fe_sub.c ${REF10_DIR}/ge_p1p1_to_p2.c
+                    ${REF10_DIR}/ge_p3_to_cached.c ${REF10_DIR}/open.c ${REF10_DIR}/fe_1.c ${REF10_DIR}/fe_isnonzero.c
+                    ${REF10_DIR}/fe_tobytes.c ${REF10_DIR}/ge_p1p1_to_p3.c ${REF10_DIR}/ge_p3_to_p2.c ${REF10_DIR}/sc_muladd.c
+                    ${REF10_DIR}/fe_add.c ${REF10_DIR}/fe_mul.c ${REF10_DIR}/ge_add.c ${REF10_DIR}/ge_p2_0.c ${REF10_DIR}/ge_precomp_0.c
+                    ${REF10_DIR}/sc_reduce.c ${REF10_DIR}/fe_cmov.c ${REF10_DIR}/fe_neg.c ${REF10_DIR}/ge_double_scalarmult.c 
+                    ${REF10_DIR}/ge_p2_dbl.c ${REF10_DIR}/ge_scalarmult_base.c ${REF10_DIR}/sign.c ${REF10_DIR}/fe_copy.c
+                    ${REF10_DIR}/fe_pow22523.c ${REF10_DIR}/ge_frombytes.c ${REF10_DIR}/ge_p3_0.c ${REF10_DIR}/ge_sub.c
+                    ${REF10_DIR}/verify.c ${REF10_DIR}/fe_frombytes.c ${REF10_DIR}/fe_sq2.c ${REF10_DIR}/ge_madd.c
+                    ${REF10_DIR}/ge_p3_dbl.c ${REF10_DIR}/ge_tobytes.c ${REF10_DIR}/fe_invert.c ${REF10_DIR}/fe_sq.c
+                    ${REF10_DIR}/ge_msub.c ${REF10_DIR}/ge_p3_tobytes.c ${REF10_DIR}/keypair.c)
+
+  REGISTER_PLUGIN(TARGET client_ed25519
+                TYPE MARIADB_CLIENT_PLUGIN_AUTH
+                CONFIGURATIONS DYNAMIC STATIC OFF
+                DEFAULT DYNAMIC
+                SOURCES ${CC_SOURCE_DIR}/plugins/auth/ed25519.c 
+                        ${REF10_SOURCES}
+                        ${CRYPT_SOURCE}
+                INCLUDES ${REF10_DIR}
+                LIBRARIES ${CRYPT_LIBS}
+                COMPILE_OPTIONS -DMYSQL_CLIENT=1)
+  IF(MSVC)
+     # Silence conversion (integer truncation) warnings from reference code
+     SET_SOURCE_FILES_PROPERTIES(${REF10_SOURCES} PROPERTY COMPILE_FLAGS "-DMYSQL_CLIENT=1 /wd4244 /wd4146")
+  ENDIF()
+
+  IF(CMAKE_C_COMPILER_ID MATCHES "GNU" AND CMAKE_C_COMPILER_VERSION LESS 11
+     AND CMAKE_C_COMPILER_VERSION GREATER 6)
+    SET_SOURCE_FILES_PROPERTIES(${REF10_SOURCES} PROPERTY COMPILE_FLAGS
+                                -fno-sanitize=shift)
+  ENDIF()
+
+  # SHA256 caching plugin for MySQL 8.0 connection
+  REGISTER_PLUGIN(TARGET caching_sha2_password
+                TYPE MARIADB_CLIENT_PLUGIN_AUTH
+                CONFIGURATIONS DYNAMIC STATIC OFF
+                DEFAULT DYNAMIC
+                SOURCES ${CC_SOURCE_DIR}/plugins/auth/caching_sha2_pw.c 
+                        ${CRYPT_SOURCE}
+                LIBRARIES ${CRYPT_LIBS})
+
+  IF(WITH_SSL STREQUAL "GNUTLS" AND NOT WIN32)
+    MESSAGE1(STATUS "sha256_password not supported by GnuTLS due to missing OAEP padding")
+  ELSE()
+    REGISTER_PLUGIN(TARGET sha256_password
+                    TYPE MARIADB_CLIENT_PLUGIN_AUTH
+                    CONFIGURATIONS DYNAMIC STATIC OFF
+                    DEFAULT DYNAMIC
+                    SOURCES ${AUTH_DIR}/sha256_pw.c
+                    LIBRARIES ${CRYPT_LIBS})
+  ENDIF()
+ENDIF()
+
+#GSSAPI client authentication plugin
+IF(NOT WIN32)
+  INCLUDE(${CC_SOURCE_DIR}/cmake/FindGSSAPI.cmake)
+  IF(GSSAPI_FOUND)
+    SET(GSSAPI_SOURCES ${AUTH_DIR}/auth_gssapi_client.c ${AUTH_DIR}/gssapi_client.c ${AUTH_DIR}/gssapi_errmsg.c)
+    IF (CMAKE_VERSION VERSION_GREATER 3.18)
+      INCLUDE(CheckLinkerFlag)
+      CHECK_LINKER_FLAG(C -Wl,--as-needed have__Wl___as_needed)
+    ENDIF()
+  ENDIF()
+  SET(AUTH_GSSAPI_DEFAULT_CONFIG DYNAMIC)
+ELSE()
+  SET(GSSAPI_LIBS secur32)
+  SET(GSSAPI_SOURCES ${AUTH_DIR}/auth_gssapi_client.c ${AUTH_DIR}/sspi_client.c ${AUTH_DIR}/sspi_errmsg.c)
+  SET(AUTH_GSSAPI_DEFAULT_CONFIG STATIC)
+ENDIF()
+IF(GSSAPI_SOURCES)
+  REGISTER_PLUGIN(TARGET auth_gssapi_client
+                  TYPE MARIADB_CLIENT_PLUGIN_AUTH
+                  CONFIGURATIONS DYNAMIC STATIC OFF
+                  DEFAULT ${AUTH_GSSAPI_DEFAULT_CONFIG}
+                  SOURCES ${GSSAPI_SOURCES}
+                  INCLUDES ${CC_SOURCE_DIR}/plugins/auth ${GSSAPI_INCS}
+                  LIBRARIES ${GSSAPI_LIBS})
+  IF(CMAKE_C_COMPILER_ID MATCHES "Clang")
+    SET_SOURCE_FILES_PROPERTIES(${GSSAPI_SOURCES} PROPERTY COMPILE_FLAGS "-Wno-deprecated-declarations")
+  ENDIF()
+  IF(have__Wl___as_needed AND TARGET auth_gssapi_client)
+    SET_TARGET_PROPERTIES(auth_gssapi_client PROPERTIES LINK_FLAGS "-Wl,--as-needed")
+  ENDIF()
+ENDIF()
+
+# old_password plugin
+REGISTER_PLUGIN(TARGET mysql_old_password
+                TYPE MARIADB_CLIENT_PLUGIN_AUTH
+                CONFIGURATIONS STATIC DYNAMIC OFF
+                DEFAULT STATIC
+                SOURCES ${AUTH_DIR}/old_password.c)
+
+# Cleartext
+REGISTER_PLUGIN(TARGET mysql_clear_password
+                TYPE MARIADB_CLIENT_PLUGIN_AUTH
+                CONFIGURATIONS DYNAMIC STATIC OFF
+                DEFAULT DYNAMIC
+                SOURCES ${AUTH_DIR}/mariadb_cleartext.c)
+
diff --git a/libmariadb/plugins/auth/auth_gssapi_client.c b/libmariadb/plugins/auth/auth_gssapi_client.c
new file mode 100644
index 00000000..6f6c6ceb
--- /dev/null
+++ b/libmariadb/plugins/auth/auth_gssapi_client.c
@@ -0,0 +1,121 @@
+/* Copyright (c) 2015-2016, Shuang Qiu, Robbie Harwood,
+Vladislav Vaintroub & MariaDB Corporation
+
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice,
+this list of conditions and the following disclaimer.
+
+2. Redistributions in binary form must reproduce the above copyright notice,
+this list of conditions and the following disclaimer in the documentation
+and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.
+*/
+
+/**
+  @file
+
+  GSSAPI authentication plugin, client side
+*/
+#include <string.h>
+#include <stdarg.h>
+#include <ma_global.h>
+#include <mysql.h>
+#include <ma_server_error.h>
+#include <mysql/client_plugin.h>
+#include <mysql.h>
+#include <stdio.h>
+#include "common.h"
+
+extern int auth_client(char *principal_name,
+                       char *mech,
+                       MYSQL *mysql,
+                       MYSQL_PLUGIN_VIO *vio);
+
+static void parse_server_packet(char *packet, size_t packet_len, char *spn, char *mech)
+{
+  size_t spn_len;
+  spn_len = strnlen(packet, packet_len);
+  strncpy(spn, packet, PRINCIPAL_NAME_MAX);
+  if (spn_len == packet_len - 1)
+  {
+    /* Mechanism not included into packet */
+    *mech = 0;
+  }
+  else
+  {
+    strncpy(mech, packet + spn_len + 1, MECH_NAME_MAX);
+  }
+}
+
+/**
+  Set client error message.
+ */
+void log_client_error(MYSQL *mysql,  const char *format, ...)
+{
+  NET *net= &mysql->net;
+  va_list args;
+
+  net->last_errno= ER_UNKNOWN_ERROR;
+  va_start(args, format);
+  vsnprintf(net->last_error, sizeof(net->last_error) - 1,
+          format, args);
+  va_end(args);
+  memcpy(net->sqlstate, "HY000", sizeof(net->sqlstate));
+}
+
+/**
+  The main client function of the GSSAPI plugin.
+ */
+static int gssapi_auth_client(MYSQL_PLUGIN_VIO *vio, MYSQL *mysql)
+{
+  int packet_len;
+  unsigned char *packet;
+  char spn[PRINCIPAL_NAME_MAX + 1];
+  char mech[MECH_NAME_MAX + 1];
+
+  /* read from server for service principal name */
+  packet_len= vio->read_packet(vio, &packet);
+  if (packet_len < 0)
+  {
+    return CR_ERROR;
+  }
+  parse_server_packet((char *)packet, (size_t)packet_len, spn, mech);
+  return auth_client(spn, mech, mysql, vio);
+}
+
+
+/* register client plugin */
+#ifndef PLUGIN_DYNAMIC
+struct st_mysql_client_plugin_AUTHENTICATION auth_gssapi_client_client_plugin=
+#else
+struct st_mysql_client_plugin_AUTHENTICATION _mysql_client_plugin_declaration_ =
+#endif
+{
+  MYSQL_CLIENT_AUTHENTICATION_PLUGIN,
+  MYSQL_CLIENT_AUTHENTICATION_PLUGIN_INTERFACE_VERSION,
+  "auth_gssapi_client",
+  "Shuang Qiu, Robbie Harwood, Vladislav Vaintroub, Georg Richter",
+  "GSSAPI/SSPI based authentication",
+  {0, 1, 0},
+  "BSD",
+  NULL,
+  NULL,
+  NULL,
+  NULL,
+  gssapi_auth_client
+};
diff --git a/libmariadb/plugins/auth/caching_sha2_pw.c b/libmariadb/plugins/auth/caching_sha2_pw.c
new file mode 100644
index 00000000..b442e477
--- /dev/null
+++ b/libmariadb/plugins/auth/caching_sha2_pw.c
@@ -0,0 +1,464 @@
+/************************************************************************************
+  Copyright (C) 2017, 2022, MariaDB Corporation AB
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Library General Public
+  License as published by the Free Software Foundation; either
+  version 2 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  Library General Public License for more details.
+
+  You should have received a copy of the GNU Library General Public
+  License along with this library; if not see <http://www.gnu.org/licenses>
+  or write to the Free Software Foundation, Inc.,
+  51 Franklin St., Fifth Floor, Boston, MA 02110, USA
+ *************************************************************************************/
+#ifndef _WIN32
+#define _GNU_SOURCE 1
+#endif
+
+#ifdef HAVE_WINCRYPT
+#undef HAVE_OPENSSL
+#undef HAVE_GNUTLS
+#endif
+
+#if defined(HAVE_OPENSSL) || defined(HAVE_WINCRYPT) || defined(HAVE_GNUTLS)
+
+#include <ma_global.h>
+#include <mysql.h>
+#include <mysql/client_plugin.h>
+#include <string.h>
+#include <memory.h>
+#include <errmsg.h>
+#include <ma_global.h>
+#include <ma_sys.h>
+#include <ma_common.h>
+
+#ifndef WIN32
+#include <dlfcn.h>
+#endif
+
+#if defined(HAVE_OPENSSL)
+#include <openssl/rsa.h>
+#include <openssl/pem.h>
+#include <openssl/err.h>
+#elif defined(HAVE_GNUTLS)
+#include <gnutls/gnutls.h>
+#elif defined(HAVE_WINCRYPT)
+#include <windows.h>
+#include <wincrypt.h>
+#include <bcrypt.h>
+
+#endif
+
+#include <ma_crypt.h>
+
+#define MAX_PW_LEN 1024
+
+#define REQUEST_PUBLIC_KEY     2
+#define CACHED_LOGIN_SUCCEEDED 3
+#define RSA_LOGIN_REQUIRED 4
+
+/* MySQL server allows requesting public key only for non secure connections.
+   secure connections are:
+     - TLS/SSL connections
+     - unix_socket connections
+*/
+static unsigned char is_connection_secure(MYSQL *mysql)
+{
+  if (mysql->options.use_ssl ||
+      mysql->net.pvio->type != PVIO_TYPE_SOCKET)
+    return 1;
+  return 0;
+}
+
+static int ma_sha256_scramble(unsigned char *scramble, size_t scramble_len,
+                              unsigned char *source, size_t source_len,
+                              unsigned char *salt, size_t salt_len)
+{
+  unsigned char digest1[MA_SHA256_HASH_SIZE],
+                digest2[MA_SHA256_HASH_SIZE],
+                new_scramble[MA_SHA256_HASH_SIZE];
+
+  MA_HASH_CTX *ctx = NULL;
+  size_t i;
+
+  /* check if all specified lengths are valid */
+  if (!scramble_len || !source_len || !salt_len)
+    return 1;
+
+  /* Step1: create sha256 from source */
+  if (!(ctx= ma_hash_new(MA_HASH_SHA256)))
+    return 1;
+  ma_hash_input(ctx, source, source_len);
+  ma_hash_result(ctx, digest1);
+  ma_hash_free(ctx);
+
+
+  /* Step2: create sha256 digest from digest1 */
+  if (!(ctx= ma_hash_new(MA_HASH_SHA256)))
+    return 1;
+  ma_hash_input(ctx, digest1, MA_SHA256_HASH_SIZE);
+  ma_hash_result(ctx, digest2);
+  ma_hash_free(ctx);
+
+  /* Step3: create sha256 digest from digest2 + salt */
+  if (!(ctx= ma_hash_new(MA_HASH_SHA256)))
+    return 1;
+  ma_hash_input(ctx, digest2, MA_SHA256_HASH_SIZE);
+  ma_hash_input(ctx, salt, salt_len);
+  ma_hash_result(ctx, new_scramble);
+  ma_hash_free(ctx);
+
+  /* Step4: xor(digest1, scramble1) */
+  for (i= 0; i < scramble_len; i++)
+    scramble[i]= digest1[i] ^ new_scramble[i];
+  return 0;
+}
+
+/* function prototypes */
+static int auth_caching_sha2_client(MYSQL_PLUGIN_VIO *vio, MYSQL *mysql);
+static int auth_caching_sha2_deinit(void);
+static int auth_caching_sha2_init(char *unused1,
+    size_t unused2,
+    int unused3,
+    va_list);
+
+
+#ifndef PLUGIN_DYNAMIC
+struct st_mysql_client_plugin_AUTHENTICATION caching_sha2_password_client_plugin=
+#else
+struct st_mysql_client_plugin_AUTHENTICATION _mysql_client_plugin_declaration_ =
+#endif
+{
+  MYSQL_CLIENT_AUTHENTICATION_PLUGIN,
+  MYSQL_CLIENT_AUTHENTICATION_PLUGIN_INTERFACE_VERSION,
+  "caching_sha2_password",
+  "Georg Richter",
+  "Caching SHA2 Authentication Plugin",
+  {0,1,0},
+  "LGPL",
+  NULL,
+  auth_caching_sha2_init,
+  auth_caching_sha2_deinit,
+  NULL,
+  auth_caching_sha2_client
+};
+
+#ifdef HAVE_WINCRYPT
+static LPBYTE ma_load_pem(const char *buffer, DWORD *buffer_len)
+{
+  LPBYTE der_buffer= NULL;
+  DWORD der_buffer_length= 0;
+
+  if (buffer_len == NULL || *buffer_len == 0)
+    return NULL;
+  /* calculate the length of DER binary */
+  if (!CryptStringToBinaryA(buffer, *buffer_len, CRYPT_STRING_BASE64HEADER,
+        NULL, &der_buffer_length, NULL, NULL))
+    goto end;
+  /* allocate DER binary buffer */
+  if (!(der_buffer= (LPBYTE)malloc(der_buffer_length)))
+    goto end;
+  /* convert to DER binary */
+  if (!CryptStringToBinaryA(buffer, *buffer_len, CRYPT_STRING_BASE64HEADER,
+        der_buffer, &der_buffer_length, NULL, NULL))
+    goto end;
+
+  *buffer_len= der_buffer_length;
+
+  return der_buffer;
+
+end:
+  if (der_buffer)
+    free(der_buffer);
+  *buffer_len= 0;
+  return NULL;
+}
+#endif
+
+#ifndef HAVE_GNUTLS
+static char *load_pub_key_file(const char *filename, int *pub_key_size)
+{
+  FILE *fp= NULL;
+  char *buffer= NULL;
+  unsigned char error= 1;
+
+  if (!pub_key_size)
+    return NULL;
+
+  if (!(fp= fopen(filename, "r")))
+    goto end;
+
+  if (fseek(fp, 0, SEEK_END))
+    goto end;
+
+  if ((*pub_key_size= ftell(fp)) < 0)
+    goto end;
+
+  rewind(fp);
+
+  if (!(buffer= malloc(*pub_key_size + 1)))
+    goto end;
+
+  if (fread(buffer, *pub_key_size, 1, fp) != (size_t)*pub_key_size)
+    goto end;
+
+  error= 0;
+
+end:
+  if (fp)
+    fclose(fp);
+  if (error && buffer)
+  {
+    free(buffer);
+    buffer= NULL;
+  }
+  return buffer;
+}
+#endif
+
+static int auth_caching_sha2_client(MYSQL_PLUGIN_VIO *vio, MYSQL *mysql)
+{
+  unsigned char *packet;
+  int packet_length;
+  int rc= CR_ERROR;
+#if !defined(HAVE_GNUTLS)
+  char passwd[MAX_PW_LEN];
+#ifdef HAVE_OPENSSL
+  unsigned char *rsa_enc_pw= NULL;
+  size_t rsa_size;
+#else
+  unsigned char rsa_enc_pw[MAX_PW_LEN];
+  ULONG rsa_size;
+#endif
+  unsigned int pwlen, i;
+  char *filebuffer= NULL;
+#endif
+  unsigned char buf[MA_SHA256_HASH_SIZE];
+
+#if defined(HAVE_OPENSSL)
+  EVP_PKEY *pubkey= NULL;
+  EVP_PKEY_CTX *ctx= NULL;
+  BIO *bio;
+  size_t outlen;
+#elif defined(HAVE_WINCRYPT)
+  BCRYPT_KEY_HANDLE pubkey= 0;
+  BCRYPT_OAEP_PADDING_INFO paddingInfo;
+  LPBYTE der_buffer= NULL;
+  DWORD der_buffer_len= 0;
+  CERT_PUBLIC_KEY_INFO *publicKeyInfo= NULL;
+  DWORD publicKeyInfoLen;
+#endif
+
+  /* read error */
+  if ((packet_length= vio->read_packet(vio, &packet)) < 0)
+    return CR_ERROR;
+
+  if (packet_length != SCRAMBLE_LENGTH + 1)
+    return CR_SERVER_HANDSHAKE_ERR;
+
+  memmove(mysql->scramble_buff, packet, SCRAMBLE_LENGTH);
+  mysql->scramble_buff[SCRAMBLE_LENGTH]= 0;
+
+  /* send empty packet if no password was provided */
+  if (!mysql->passwd || !mysql->passwd[0])
+  {
+    if (vio->write_packet(vio, 0, 0))
+      return CR_ERROR;
+    return CR_OK;
+  }
+
+  /* This is the normal authentication, if the host/user key is already in server
+     cache. In case authentication will fail, we will not return an error but will
+     try to connect via RSA encryption.
+  */
+  if (ma_sha256_scramble(buf, MA_SHA256_HASH_SIZE,
+                         (unsigned char *)mysql->passwd, strlen(mysql->passwd),
+                         (unsigned char *)mysql->scramble_buff, SCRAMBLE_LENGTH))
+    return CR_ERROR;
+
+  if (vio->write_packet(vio, buf, MA_SHA256_HASH_SIZE))
+    return CR_ERROR;
+  if ((packet_length=vio->read_packet(vio, &packet)) == -1)
+    return CR_ERROR;
+  if (packet_length == 1)
+  {
+    switch (*packet) {
+    case CACHED_LOGIN_SUCCEEDED:
+      return CR_OK;
+    case RSA_LOGIN_REQUIRED:
+      break;
+    default:
+      return CR_ERROR;
+    }
+  }
+
+  if (!is_connection_secure(mysql))
+  {
+#if defined(HAVE_GNUTLS)
+     mysql->methods->set_error(mysql, CR_AUTH_PLUGIN_ERR, "HY000", 
+                               "RSA Encryption not supported - caching_sha2_password plugin was built with GnuTLS support");
+     return CR_ERROR;
+#else
+    /* read public key file (if specified) */
+    if (mysql->options.extension &&
+        mysql->options.extension->server_public_key)
+    {
+      filebuffer= load_pub_key_file(mysql->options.extension->server_public_key,
+                                    &packet_length);
+    }
+
+    /* if no public key file was specified or if we couldn't read the file,
+       we ask server to send public key */
+    if (!filebuffer)
+    {
+      unsigned char request= REQUEST_PUBLIC_KEY;
+      if (vio->write_packet(vio, &request, 1) ||
+         (packet_length=vio->read_packet(vio, &packet)) == -1)
+      {
+        mysql->methods->set_error(mysql, CR_AUTH_PLUGIN_ERR, "HY000", "Couldn't read RSA public key from server");
+        return CR_ERROR;
+      }
+    }
+#if defined(HAVE_OPENSSL)
+    bio= BIO_new_mem_buf(filebuffer ? (unsigned char *)filebuffer : packet,
+                         packet_length);
+    if (!(pubkey= PEM_read_bio_PUBKEY(bio, NULL, NULL, NULL)))
+      goto error;
+    if (!(ctx= EVP_PKEY_CTX_new(pubkey, NULL)))
+      goto error;
+    if (EVP_PKEY_encrypt_init(ctx) <= 0)
+      goto error;
+    if (EVP_PKEY_CTX_set_rsa_padding(ctx, RSA_PKCS1_OAEP_PADDING) <= 0)
+      goto error;
+    rsa_size= EVP_PKEY_size(pubkey);
+    BIO_free(bio);
+    bio= NULL;
+    ERR_clear_error();
+#elif defined(HAVE_WINCRYPT)
+    der_buffer_len= packet_length;
+    /* Load pem and convert it to binary object. New length will be returned
+       in der_buffer_len */
+    if (!(der_buffer= ma_load_pem(filebuffer ? filebuffer : (char *)packet, &der_buffer_len)))
+      goto error;
+
+    /* Create context and load public key */
+    if (!CryptDecodeObjectEx(X509_ASN_ENCODING, X509_PUBLIC_KEY_INFO,
+                             der_buffer, der_buffer_len,
+                             CRYPT_DECODE_ALLOC_FLAG, NULL,
+                             &publicKeyInfo, &publicKeyInfoLen))
+      goto error;
+    free(der_buffer);
+
+    /* Import public key as cng key */
+    if (!CryptImportPublicKeyInfoEx2(X509_ASN_ENCODING, publicKeyInfo,
+                                     CRYPT_OID_INFO_PUBKEY_ENCRYPT_KEY_FLAG,
+                                     NULL, &pubkey))
+      goto error;
+
+#endif
+    if (!pubkey)
+      return CR_ERROR;
+
+    pwlen= (unsigned int)strlen(mysql->passwd) + 1;  /* include terminating zero */
+    if (pwlen > MAX_PW_LEN)
+      goto error;
+    memcpy(passwd, mysql->passwd, pwlen);
+
+    /* xor password with scramble */
+    for (i=0; i < pwlen; i++)
+      passwd[i]^= *(mysql->scramble_buff + i % SCRAMBLE_LENGTH);
+
+    /* encrypt scrambled password */
+#if defined(HAVE_OPENSSL)
+    if (EVP_PKEY_encrypt(ctx, NULL, &outlen, (unsigned char *)passwd, pwlen) <= 0)
+      goto error;
+    if (!(rsa_enc_pw= malloc(outlen)))
+      goto error;
+    if (EVP_PKEY_encrypt(ctx, rsa_enc_pw, &outlen, (unsigned char *)passwd, pwlen) <= 0)
+      goto error;
+#elif defined(HAVE_WINCRYPT)
+    ZeroMemory(&paddingInfo, sizeof(paddingInfo));
+    paddingInfo.pszAlgId = BCRYPT_SHA1_ALGORITHM;
+    if ((rc= BCryptEncrypt(pubkey, (PUCHAR)passwd, pwlen, &paddingInfo, NULL, 0, rsa_enc_pw,
+                     MAX_PW_LEN, &rsa_size, BCRYPT_PAD_OAEP)))
+      goto error;
+
+#endif
+    if (vio->write_packet(vio, rsa_enc_pw, rsa_size))
+      goto error;
+
+    rc= CR_OK;
+#endif
+  }
+  else
+  {
+    if (vio->write_packet(vio, (unsigned char *)mysql->passwd, (int)strlen(mysql->passwd) + 1))
+      return CR_ERROR;
+    return CR_OK;
+  }
+#if !defined(HAVE_GNUTLS)
+error:
+#if defined(HAVE_OPENSSL)
+  if (pubkey)
+    EVP_PKEY_free(pubkey);
+  if (rsa_enc_pw)
+    free(rsa_enc_pw);
+  if (bio)
+    BIO_free(bio);
+  if (ctx)
+    EVP_PKEY_CTX_free(ctx);
+#elif defined(HAVE_WINCRYPT)
+  if (pubkey)
+    BCryptDestroyKey(pubkey);
+  if (publicKeyInfo)
+    LocalFree(publicKeyInfo);
+#endif
+  free(filebuffer);
+#endif
+  return rc;
+}
+/* }}} */
+
+/* {{{ static int auth_caching_sha2_init */
+/*
+   Initialization routine
+
+   SYNOPSIS
+   auth_sha256_init
+   unused1
+   unused2
+   unused3
+   unused4
+
+   DESCRIPTION
+   Init function checks if the caller provides own dialog function.
+   The function name must be mariadb_auth_dialog or
+   mysql_authentication_dialog_ask. If the function cannot be found,
+   we will use owr own simple command line input.
+
+   RETURN
+   0           success
+ */
+static int auth_caching_sha2_init(char *unused1 __attribute__((unused)),
+    size_t unused2  __attribute__((unused)),
+    int unused3     __attribute__((unused)),
+    va_list unused4 __attribute__((unused)))
+{
+  return 0;
+}
+/* }}} */
+
+/* {{{ auth_caching_sha2_deinit */
+static int auth_caching_sha2_deinit(void)
+{
+  return 0;
+}
+/* }}} */
+
+#endif  /* defined(HAVE_OPENSSL) || defined(HAVE_WINCRYPT) || defined(HAVE_GNUTLS)*/
+
diff --git a/libmariadb/plugins/auth/common.h b/libmariadb/plugins/auth/common.h
new file mode 100644
index 00000000..c04241ac
--- /dev/null
+++ b/libmariadb/plugins/auth/common.h
@@ -0,0 +1,4 @@
+/** Maximal length of the target name */
+#define PRINCIPAL_NAME_MAX 256
+/** Maximal length of the mech string */
+#define MECH_NAME_MAX 30
diff --git a/libmariadb/plugins/auth/dialog.c b/libmariadb/plugins/auth/dialog.c
new file mode 100644
index 00000000..31d7b7d8
--- /dev/null
+++ b/libmariadb/plugins/auth/dialog.c
@@ -0,0 +1,222 @@
+/************************************************************************************
+   Copyright (C) 2014-2018 MariaDB Corporation AB
+   
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public
+   License as published by the Free Software Foundation; either
+   version 2 of the License, or (at your option) any later version.
+   
+   This library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+   
+   You should have received a copy of the GNU Library General Public
+   License along with this library; if not see <http://www.gnu.org/licenses>
+   or write to the Free Software Foundation, Inc., 
+   51 Franklin St., Fifth Floor, Boston, MA 02110, USA
+*************************************************************************************/
+#ifndef _WIN32
+#define _GNU_SOURCE 1
+#endif
+
+#include <ma_global.h>
+#include <mysql.h>
+#include <mysql/client_plugin.h>
+#include <string.h>
+#include <memory.h>
+
+#ifndef WIN32
+#include <dlfcn.h>
+#endif
+
+
+/* function prototypes */
+extern char *get_tty_password(char *opt_message, char *buff, int bufflen);
+static int auth_dialog_open(MYSQL_PLUGIN_VIO *vio, MYSQL *mysql);
+static int auth_dialog_init(char *unused1,
+                            size_t unused2,
+                            int unused3,
+                            va_list);
+
+mysql_authentication_dialog_ask_t auth_dialog_func;
+
+#ifndef PLUGIN_DYNAMIC
+struct st_mysql_client_plugin_AUTHENTICATION dialog_client_plugin=
+#else
+struct st_mysql_client_plugin_AUTHENTICATION _mysql_client_plugin_declaration_ =
+#endif
+{
+  MYSQL_CLIENT_AUTHENTICATION_PLUGIN,
+  MYSQL_CLIENT_AUTHENTICATION_PLUGIN_INTERFACE_VERSION,
+  "dialog",
+  "Sergei Golubchik, Georg Richter",
+  "Dialog Client Authentication Plugin",
+  {0,1,0},
+  "LGPL",
+  NULL,
+  auth_dialog_init,
+  NULL,
+  NULL,
+  auth_dialog_open
+};
+
+
+/* {{{ static char *auth_dialog_native_prompt */
+/*
+   Native dialog prompt via stdin
+
+   SYNOPSIS
+     auth_dialog_native_prompt
+     mysql            connection handle
+     type             input type
+     prompt           prompt
+     buffer           Input buffer
+     buffer_len       Input buffer length
+
+  DESCRIPTION
+    
+  RETURNS
+    Input buffer
+*/
+static char *auth_dialog_native_prompt(MYSQL *mysql __attribute__((unused)),
+                                       int type,
+                                       const char *prompt,
+                                       char *buffer,
+                                       int buffer_len)
+{
+  /* display prompt */
+  fprintf(stdout, "%s", prompt);
+
+  memset(buffer, 0, buffer_len);
+
+  /* for type 2 (password) don't display input */
+  if (type != 2)
+  {
+    if (fgets(buffer, buffer_len - 1, stdin))
+    {
+      /* remove trailing line break */
+      size_t length= strlen(buffer);
+      if (length && buffer[length - 1] == '\n')
+        buffer[length - 1]= 0;
+    }
+  }
+  else
+  {
+    get_tty_password((char *)"", buffer, buffer_len - 1);
+  }
+  return buffer;
+}
+/* }}} */
+
+/* {{{ static int auth_dialog_open */
+/*
+   opens dialog
+
+   SYNOPSIS
+     vio           Vio
+     mysql         connection handle
+
+   DESCRIPTION
+     reads prompt from server, waits for input and sends
+     input to server.
+     Note that first byte of prompt indicates if we have a 
+     password which should not be echoed to stdout.
+
+   RETURN
+     CR_ERROR      if an error occurs
+     CR_OK
+     CR_OK_HANDSHAKE_COMPLETE
+*/
+static int auth_dialog_open(MYSQL_PLUGIN_VIO *vio, MYSQL *mysql)
+{
+  uchar *packet;
+  uchar type= 0;
+  char dialog_buffer[1024];
+  char *response;
+  int packet_length;
+  my_bool first_loop= TRUE;
+
+  do {
+    if ((packet_length= vio->read_packet(vio, &packet)) == -1)
+      /* read error */
+      return CR_ERROR;
+
+    if (packet_length > 0)
+    {
+      type= *packet;
+      packet++;
+
+      /* check for protocol packet */
+      if (!type || type == 254)
+        return CR_OK_HANDSHAKE_COMPLETE;
+
+      if ((type >> 1) == 2 &&
+          first_loop &&
+          mysql->passwd && mysql->passwd[0])
+        response= mysql->passwd;
+      else
+        response= auth_dialog_func(mysql, type >> 1,
+                                  (const char *)packet,
+                                  dialog_buffer, 1024);
+    }
+    else
+    {
+      /* in case mysql_change_user was called the client needs
+         to send packet first */
+      response= mysql->passwd;
+    }
+    if (!response ||
+        vio->write_packet(vio, (uchar *)response, (int)strlen(response) + 1))
+      return CR_ERROR;
+
+    first_loop= FALSE;
+
+  } while((type & 1) != 1);
+  return CR_OK;
+}
+/* }}} */
+
+/* {{{ static int auth_dialog_init */
+/* 
+  Initialization routine
+
+  SYNOPSIS
+    auth_dialog_init
+      unused1
+      unused2
+      unused3
+      unused4
+
+  DESCRIPTION
+    Init function checks if the caller provides own dialog function.
+    The function name must be mariadb_auth_dialog or
+    mysql_authentication_dialog_ask. If the function cannot be found,
+    we will use owr own simple command line input.
+
+  RETURN
+    0           success
+*/
+static int auth_dialog_init(char *unused1 __attribute__((unused)), 
+                            size_t unused2  __attribute__((unused)), 
+                            int unused3     __attribute__((unused)), 
+                            va_list unused4 __attribute__((unused)))
+{
+  void *func;
+#ifdef WIN32
+  if (!(func= GetProcAddress(GetModuleHandle(NULL), "mariadb_auth_dialog")))
+    /* for MySQL users */
+    func= GetProcAddress(GetModuleHandle(NULL), "mysql_authentication_dialog_ask");
+#else
+  if (!(func= dlsym(RTLD_DEFAULT, "mariadb_auth_dialog")))
+    /* for MySQL users */
+    func= dlsym(RTLD_DEFAULT, "mysql_authentication_dialog_ask");
+#endif
+  if (func)
+    auth_dialog_func= (mysql_authentication_dialog_ask_t)func;
+  else
+    auth_dialog_func= auth_dialog_native_prompt;
+
+  return 0;
+}
+/* }}} */
diff --git a/libmariadb/plugins/auth/ed25519.c b/libmariadb/plugins/auth/ed25519.c
new file mode 100644
index 00000000..38b896f8
--- /dev/null
+++ b/libmariadb/plugins/auth/ed25519.c
@@ -0,0 +1,137 @@
+/************************************************************************************
+  Copyright (C) 2017-2019 MariaDB Corporation AB
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Library General Public
+  License as published by the Free Software Foundation; either
+  version 2 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  Library General Public License for more details.
+
+  You should have received a copy of the GNU Library General Public
+  License along with this library; if not see <http://www.gnu.org/licenses>
+  or write to the Free Software Foundation, Inc.,
+  51 Franklin St., Fifth Floor, Boston, MA 02110, USA
+ *************************************************************************************/
+#ifndef _WIN32
+#define _GNU_SOURCE 1
+#endif
+
+#ifdef HAVE_WINCRYPT
+#undef HAVE_OPENSSL
+#undef HAVE_GNUTLS
+#endif
+
+#if defined(HAVE_OPENSSL) || defined(HAVE_WINCRYPT) || defined(HAVE_GNUTLS)
+
+#include <ma_global.h>
+#include <mysql.h>
+#include <mysql/client_plugin.h>
+#include <string.h>
+#include <memory.h>
+#include <errmsg.h>
+#include <ma_global.h>
+#include <ma_sys.h>
+#include <ma_common.h>
+
+#ifndef WIN32
+#include <dlfcn.h>
+#endif
+
+#if defined(HAVE_WINCRYPT)
+#include <windows.h>
+#include <wincrypt.h>
+#include <bcrypt.h>
+#elif defined(HAVE_OPENSSL)
+#include <openssl/rsa.h>
+#include <openssl/pem.h>
+#include <openssl/err.h>
+#elif defined(HAVE_GNUTLS)
+#include <gnutls/gnutls.h>
+#endif
+
+#include <ref10/api.h>
+#include <ed25519_common.h>
+#include <ma_crypt.h>
+
+/* function prototypes */
+static int auth_ed25519_client(MYSQL_PLUGIN_VIO *vio, MYSQL *mysql);
+static int auth_ed25519_deinit(void);
+static int auth_ed25519_init(char *unused1,
+    size_t unused2,
+    int unused3,
+    va_list);
+
+
+#ifndef PLUGIN_DYNAMIC
+struct st_mysql_client_plugin_AUTHENTICATION client_ed25519_client_plugin=
+#else
+struct st_mysql_client_plugin_AUTHENTICATION _mysql_client_plugin_declaration_ =
+#endif
+{
+  MYSQL_CLIENT_AUTHENTICATION_PLUGIN,
+  MYSQL_CLIENT_AUTHENTICATION_PLUGIN_INTERFACE_VERSION,
+  "client_ed25519",
+  "Sergei Golubchik, Georg Richter",
+  "Ed25519 Authentication Plugin",
+  {0,1,0},
+  "LGPL",
+  NULL,
+  auth_ed25519_init,
+  auth_ed25519_deinit,
+  NULL,
+  auth_ed25519_client
+};
+
+
+static int auth_ed25519_client(MYSQL_PLUGIN_VIO *vio, MYSQL *mysql)
+{
+  unsigned char *packet,
+                signature[CRYPTO_BYTES + NONCE_BYTES];
+  int pkt_len;
+
+  /*
+     Step 1: Server sends nonce
+     Step 2: check that packet length is equal to NONCE_BYTES (=32)
+     Step 3: Sign the nonce with password
+     Steo 4: Send the signature back to server
+  */
+
+  /* read and check nonce */
+  pkt_len= vio->read_packet(vio, &packet);
+  if (pkt_len != NONCE_BYTES)
+    return CR_SERVER_HANDSHAKE_ERR;
+
+  /* Sign nonce: the crypto_sign function is part of ref10 */
+  ma_crypto_sign(signature, packet, NONCE_BYTES, (unsigned char*)mysql->passwd, strlen(mysql->passwd));
+
+  /* send signature to server */
+  if (vio->write_packet(vio, signature, CRYPTO_BYTES))
+    return CR_ERROR;
+
+  return CR_OK;
+}
+/* }}} */
+
+/* {{{ static int auth_ed25519_init */
+static int auth_ed25519_init(char *unused1 __attribute__((unused)),
+    size_t unused2  __attribute__((unused)),
+    int unused3     __attribute__((unused)),
+    va_list unused4 __attribute__((unused)))
+{
+  return 0;
+}
+/* }}} */
+
+/* {{{ auth_ed25519_deinit */
+static int auth_ed25519_deinit(void)
+{
+  return 0;
+}
+/* }}} */
+
+#endif  /* defined(HAVE_OPENSSL) || defined(HAVE_WINCRYPT) || defined(HAVE_GNUTLS)*/
+
diff --git a/libmariadb/plugins/auth/ed25519_common.h b/libmariadb/plugins/auth/ed25519_common.h
new file mode 100644
index 00000000..b4494f40
--- /dev/null
+++ b/libmariadb/plugins/auth/ed25519_common.h
@@ -0,0 +1,26 @@
+/************************************************************************************
+   Copyright (C) 2017-2022 MariaDB Corporation AB
+   
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public
+   License as published by the Free Software Foundation; either
+   version 2 of the License, or (at your option) any later version.
+   
+   This library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+   
+   You should have received a copy of the GNU Library General Public
+   License along with this library; if not see <http://www.gnu.org/licenses>
+   or write to the Free Software Foundation, Inc., 
+   51 Franklin St., Fifth Floor, Boston, MA 02110, USA
+*************************************************************************************/
+
+#include <mysql.h>
+#include <string.h>
+
+#include "ref10/api.h"
+#include "ref10/crypto_sign.h"
+
+#define NONCE_BYTES 32
diff --git a/libmariadb/plugins/auth/gssapi_client.c b/libmariadb/plugins/auth/gssapi_client.c
new file mode 100644
index 00000000..b4e3e89d
--- /dev/null
+++ b/libmariadb/plugins/auth/gssapi_client.c
@@ -0,0 +1,131 @@
+/* Copyright (c) 2015, Shuang Qiu, Robbie Harwood,
+Vladislav Vaintroub & MariaDB Corporation
+
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice,
+this list of conditions and the following disclaimer.
+
+2. Redistributions in binary form must reproduce the above copyright notice,
+this list of conditions and the following disclaimer in the documentation
+and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#if defined(__FreeBSD__) ||  defined(SOLARIS) || defined(__sun)
+#include <gssapi/gssapi.h>
+#else
+#include <gssapi.h>
+#endif
+#include <string.h>
+#include <stdio.h>
+#include <mysql/plugin_auth.h>
+#include <ma_server_error.h>
+#include <mysql.h>
+#include "gssapi_errmsg.h"
+
+extern void log_client_error(MYSQL *mysql,const char *fmt,...);
+
+
+/* This sends the error to the client */
+static void log_error(MYSQL *mysql, OM_uint32 major, OM_uint32 minor, const char *msg)
+{
+  if (GSS_ERROR(major))
+  {
+    char sysmsg[1024];
+    gssapi_errmsg(major, minor, sysmsg, sizeof(sysmsg));
+    log_client_error(mysql,
+      "Client GSSAPI error (major %u, minor %u) : %s - %s",
+       major, minor, msg, sysmsg);
+  }
+  else
+  {
+    log_client_error(mysql, "Client GSSAPI error : %s", msg);
+  }
+}
+
+int auth_client(char *principal_name, char *mech __attribute__((unused)),
+                MYSQL *mysql, MYSQL_PLUGIN_VIO *vio)
+{
+  gss_buffer_desc input= {0,0};
+  int ret= CR_ERROR;
+  OM_uint32 major= 0, minor= 0;
+  gss_ctx_id_t ctxt= GSS_C_NO_CONTEXT;
+  gss_name_t service_name= GSS_C_NO_NAME;
+
+  if (principal_name && principal_name[0])
+  {
+    /* import principal from plain text */
+    gss_buffer_desc principal_name_buf;
+    principal_name_buf.length= strlen(principal_name);
+    principal_name_buf.value= (void *) principal_name;
+    major= gss_import_name(&minor, &principal_name_buf, GSS_C_NT_USER_NAME, &service_name);
+    if (GSS_ERROR(major))
+    {
+      log_error(mysql, major, minor, "gss_import_name");
+      return CR_ERROR;
+    }
+  }
+
+  do
+  {
+    gss_buffer_desc output= {0,0};
+    major= gss_init_sec_context(&minor, GSS_C_NO_CREDENTIAL, &ctxt, service_name,
+                                GSS_C_NO_OID, 0, 0, GSS_C_NO_CHANNEL_BINDINGS,
+                                &input, NULL, &output, NULL, NULL);
+    if (output.length)
+    {
+      /* send credential */
+      if(vio->write_packet(vio, (unsigned char *)output.value, output.length))
+      {
+        /* Server error packet contains detailed message. */
+        ret= CR_OK_HANDSHAKE_COMPLETE;
+        gss_release_buffer (&minor, &output);
+        goto cleanup;
+      }
+    }
+    gss_release_buffer (&minor, &output);
+
+    if (GSS_ERROR(major))
+    {
+       log_error(mysql, major, minor,"gss_init_sec_context");
+       goto cleanup;
+    }
+
+    if (major & GSS_S_CONTINUE_NEEDED)
+    {
+      int len= vio->read_packet(vio, (unsigned char **) &input.value);
+      if (len <= 0)
+      {
+        /* Server error packet contains detailed message. */
+        ret= CR_OK_HANDSHAKE_COMPLETE;
+        goto cleanup;
+      }
+      input.length= len;
+    }
+  } while (major & GSS_S_CONTINUE_NEEDED);
+
+  ret= CR_OK;
+
+cleanup:
+  if (service_name != GSS_C_NO_NAME)
+    gss_release_name(&minor, &service_name);
+  if (ctxt != GSS_C_NO_CONTEXT)
+    gss_delete_sec_context(&minor, &ctxt, GSS_C_NO_BUFFER);
+
+  return ret;
+}
diff --git a/libmariadb/plugins/auth/gssapi_errmsg.c b/libmariadb/plugins/auth/gssapi_errmsg.c
new file mode 100644
index 00000000..eb914404
--- /dev/null
+++ b/libmariadb/plugins/auth/gssapi_errmsg.c
@@ -0,0 +1,79 @@
+/* Copyright (c) 2015, Shuang Qiu, Robbie Harwood,
+Vladislav Vaintroub & MariaDB Corporation
+
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice,
+this list of conditions and the following disclaimer.
+
+2. Redistributions in binary form must reproduce the above copyright notice,
+this list of conditions and the following disclaimer in the documentation
+and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#if defined(__FreeBSD__) ||  defined(SOLARIS) || defined(__sun)
+#include <gssapi/gssapi.h>
+#else
+#include <gssapi.h>
+#endif
+#include <string.h>
+void gssapi_errmsg(OM_uint32 major, OM_uint32 minor, char *buf, size_t size)
+{
+  OM_uint32 message_context;
+  OM_uint32 status_code;
+  OM_uint32 maj_status;
+  OM_uint32 min_status;
+  gss_buffer_desc status_string;
+  char *p= buf;
+  char *end= buf + size - 1;
+  int types[] = {GSS_C_GSS_CODE,GSS_C_MECH_CODE};
+  int i;
+  for(i= 0; i < 2;i++)
+  {
+    message_context= 0;
+    status_code= types[i] == GSS_C_GSS_CODE?major:minor;
+
+    if(!status_code)
+      continue;
+    do
+    {
+      maj_status = gss_display_status(
+        &min_status,
+        status_code,
+        types[i],
+        GSS_C_NO_OID,
+        &message_context,
+        &status_string);
+
+      if(maj_status)
+        break;
+
+      if(p + status_string.length + 2 < end)
+      {
+        memcpy(p,status_string.value, status_string.length);
+        p += status_string.length;
+        *p++ = '.';
+        *p++ = ' ';
+      }
+
+      gss_release_buffer(&min_status, &status_string);
+    }
+    while (message_context != 0);
+  }
+  *p= 0;
+}
diff --git a/libmariadb/plugins/auth/gssapi_errmsg.h b/libmariadb/plugins/auth/gssapi_errmsg.h
new file mode 100644
index 00000000..26db8439
--- /dev/null
+++ b/libmariadb/plugins/auth/gssapi_errmsg.h
@@ -0,0 +1,29 @@
+/* Copyright (c) 2015, Shuang Qiu, Robbie Harwood,
+Vladislav Vaintroub & MariaDB Corporation
+
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice,
+this list of conditions and the following disclaimer.
+
+2. Redistributions in binary form must reproduce the above copyright notice,
+this list of conditions and the following disclaimer in the documentation
+and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.
+*/
+
+extern void gssapi_errmsg(OM_uint32 major, OM_uint32 minor, char *buf, size_t size);
diff --git a/libmariadb/plugins/auth/mariadb_cleartext.c b/libmariadb/plugins/auth/mariadb_cleartext.c
new file mode 100644
index 00000000..b63c1d3b
--- /dev/null
+++ b/libmariadb/plugins/auth/mariadb_cleartext.c
@@ -0,0 +1,76 @@
+/************************************************************************************
+   Copyright (C) 2014-2018 MariaDB Corporation AB
+   
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public
+   License as published by the Free Software Foundation; either
+   version 2 of the License, or (at your option) any later version.
+   
+   This library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+   
+   You should have received a copy of the GNU Library General Public
+   License along with this library; if not see <http://www.gnu.org/licenses>
+   or write to the Free Software Foundation, Inc., 
+   51 Franklin St., Fifth Floor, Boston, MA 02110, USA
+*************************************************************************************/
+#include <ma_global.h>
+#include <mysql.h>
+#include <mysql/client_plugin.h>
+#include <string.h>
+
+/* clear text plugin submits the password without opening a dialog.
+   This will be the case if pam-use-cleartext-plugin option is
+   enabled on server side */
+
+/* {{{ auth_send_plain_password() */
+/*
+   sends an unencrypted password to server
+
+   SYNOPSIS
+     auth_send_plain_password()
+     vio             pointer to vio structure
+     mysql           connection handle
+
+   DESCRIPTION
+     sends an unencrypted password (which was specified either in
+     mysql_real_connect or mysql_change_user) to server.
+
+   RETURN
+     CR_OK
+     CR_ERROR        if an error occurred
+*/
+static int clear_password_auth_client(MYSQL_PLUGIN_VIO *vio, MYSQL *mysql)
+{
+  if (!vio || !mysql || !mysql->passwd)
+    return CR_ERROR;
+
+  /* write password including terminating zero character */
+  return vio->write_packet(vio, (const unsigned char *) mysql->passwd, (int)strlen(mysql->passwd) + 1) ?
+         CR_ERROR : CR_OK;
+}
+/* }}} */
+
+#ifndef PLUGIN_DYNAMIC
+struct st_mysql_client_plugin_AUTHENTICATION mysql_clear_password_client_plugin=
+#else
+struct st_mysql_client_plugin_AUTHENTICATION _mysql_client_plugin_declaration_ =
+#endif
+{
+  MYSQL_CLIENT_AUTHENTICATION_PLUGIN,
+  MYSQL_CLIENT_AUTHENTICATION_PLUGIN_INTERFACE_VERSION,
+  "mysql_clear_password",
+  "Georg Richter",
+  "MariaDB clear password authentication plugin",
+  {0,1,0},
+  "LGPL",
+  NULL,
+  NULL,
+  NULL,
+  NULL,
+  clear_password_auth_client
+};
+
+
diff --git a/libmariadb/plugins/auth/my_auth.c b/libmariadb/plugins/auth/my_auth.c
new file mode 100644
index 00000000..72773079
--- /dev/null
+++ b/libmariadb/plugins/auth/my_auth.c
@@ -0,0 +1,741 @@
+#include <ma_global.h>
+#include <ma_sys.h>
+#include <errmsg.h>
+#include <string.h>
+#include <ma_common.h>
+#include <mysql/client_plugin.h>
+
+typedef struct st_mysql_client_plugin_AUTHENTICATION auth_plugin_t;
+static int client_mpvio_write_packet(struct st_plugin_vio*, const uchar*, size_t);
+static int native_password_auth_client(MYSQL_PLUGIN_VIO *vio, MYSQL *mysql);
+static int dummy_fallback_auth_client(MYSQL_PLUGIN_VIO *vio, MYSQL *mysql __attribute__((unused)));
+extern void read_user_name(char *name);
+extern char *ma_send_connect_attr(MYSQL *mysql, unsigned char *buffer);
+extern int ma_read_ok_packet(MYSQL *mysql, uchar *pos, ulong length);
+extern unsigned char *mysql_net_store_length(unsigned char *packet, ulonglong length);
+
+typedef struct {
+  int (*read_packet)(struct st_plugin_vio *vio, uchar **buf);
+  int (*write_packet)(struct st_plugin_vio *vio, const uchar *pkt, size_t pkt_len);
+  void (*info)(struct st_plugin_vio *vio, struct st_plugin_vio_info *info);
+  /* -= end of MYSQL_PLUGIN_VIO =- */
+  MYSQL *mysql;
+  auth_plugin_t *plugin;             /**< what plugin we're under */
+  const char *db;
+  struct {
+    uchar *pkt;                      /**< pointer into NET::buff */
+    uint pkt_len;
+  } cached_server_reply;
+  uint packets_read, packets_written; /**< counters for send/received packets */
+  my_bool mysql_change_user;          /**< if it's mysql_change_user() */
+  int last_read_packet_len;           /**< the length of the last *read* packet */
+} MCPVIO_EXT;
+/*
+#define compile_time_assert(A) \
+do {\
+  typedef char constraint[(A) ? 1 : -1];\
+} while (0);
+*/
+
+auth_plugin_t mysql_native_password_client_plugin=
+{
+  MYSQL_CLIENT_AUTHENTICATION_PLUGIN,
+  MYSQL_CLIENT_AUTHENTICATION_PLUGIN_INTERFACE_VERSION,
+  native_password_plugin_name,
+  "R.J.Silk, Sergei Golubchik",
+  "Native MySQL authentication",
+  {1, 0, 0},
+  "LGPL",
+  NULL,
+  NULL,
+  NULL,
+  NULL,
+  native_password_auth_client
+};
+
+
+static int native_password_auth_client(MYSQL_PLUGIN_VIO *vio, MYSQL *mysql)
+{
+  int pkt_len;
+  uchar *pkt;
+
+  if (((MCPVIO_EXT *)vio)->mysql_change_user)
+  {
+    /*
+      in mysql_change_user() the client sends the first packet.
+      we use the old scramble.
+    */
+    pkt= (uchar*)mysql->scramble_buff;
+    pkt_len= SCRAMBLE_LENGTH + 1;
+  }
+  else
+  {
+    /* read the scramble */
+    if ((pkt_len= vio->read_packet(vio, &pkt)) < 0)
+      return CR_ERROR;
+
+    if (pkt_len != SCRAMBLE_LENGTH + 1)
+      return CR_SERVER_HANDSHAKE_ERR;
+
+    /* save it in MYSQL */
+    memmove(mysql->scramble_buff, pkt, SCRAMBLE_LENGTH);
+    mysql->scramble_buff[SCRAMBLE_LENGTH] = 0;
+  }
+
+  if (mysql && mysql->passwd[0])
+  {
+    char scrambled[SCRAMBLE_LENGTH + 1];
+    memset(scrambled, 0, SCRAMBLE_LENGTH + 1);
+    ma_scramble_41((uchar *)scrambled, (char*)pkt, mysql->passwd);
+    if (vio->write_packet(vio, (uchar*)scrambled, SCRAMBLE_LENGTH))
+      return CR_ERROR;
+  }
+  else
+    if (vio->write_packet(vio, 0, 0)) /* no password */
+      return CR_ERROR;
+
+  return CR_OK;
+}
+
+auth_plugin_t dummy_fallback_client_plugin=
+{
+  MYSQL_CLIENT_AUTHENTICATION_PLUGIN,
+  MYSQL_CLIENT_AUTHENTICATION_PLUGIN_INTERFACE_VERSION,
+  "dummy_fallback_auth",
+  "Sergei Golubchik",
+  "Dummy fallback plugin",
+  {1, 0, 0},
+  "LGPL",
+  NULL,
+  NULL,
+  NULL,
+  NULL,
+  dummy_fallback_auth_client
+};
+
+
+static int dummy_fallback_auth_client(MYSQL_PLUGIN_VIO *vio, MYSQL *mysql __attribute__((unused)))
+{
+  char last_error[MYSQL_ERRMSG_SIZE];
+  unsigned int i, last_errno= ((MCPVIO_EXT *)vio)->mysql->net.last_errno;
+  if (last_errno)
+  {
+    memcpy(last_error, ((MCPVIO_EXT *)vio)->mysql->net.last_error,
+            sizeof(last_error) - 1);
+    last_error[sizeof(last_error) - 1]= 0;
+  }
+
+  /* safety-wise we only do 10 round-trips */
+  for (i=0; i < 10; i++)
+  {
+    uchar *pkt;
+    if (vio->read_packet(vio, &pkt) < 0)
+      break;
+    if (vio->write_packet(vio, 0, 0))
+      break;
+  }
+  if (last_errno)
+  {
+    MYSQL *mysql= ((MCPVIO_EXT *)vio)->mysql;
+    memcpy(mysql->net.last_error, last_error,
+            sizeof(mysql->net.last_error) - 1);
+    mysql->net.last_error[sizeof(mysql->net.last_error) - 1]= 0;
+  }
+  return CR_ERROR;
+}
+
+static int send_change_user_packet(MCPVIO_EXT *mpvio,
+                                   const uchar *data, int data_len)
+{
+  MYSQL *mysql= mpvio->mysql;
+  char *buff, *end;
+  int res= 1;
+  size_t conn_attr_len= (mysql->options.extension) ? 
+                         mysql->options.extension->connect_attrs_len : 0;
+
+  buff= malloc(USERNAME_LENGTH+1 + data_len+1 + NAME_LEN+1 + 2 + NAME_LEN+1 + 9 + conn_attr_len);
+
+  end= ma_strmake(buff, mysql->user, USERNAME_LENGTH) + 1;
+
+  if (!data_len)
+    *end++= 0;
+  else
+  {
+    if (mysql->client_flag & CLIENT_SECURE_CONNECTION)
+    {
+      DBUG_ASSERT(data_len <= 255);
+      if (data_len > 255)
+      {
+        my_set_error(mysql, CR_MALFORMED_PACKET, SQLSTATE_UNKNOWN, 0);
+        goto error;
+      }
+      *end++= data_len;
+    }
+    else
+    {
+      DBUG_ASSERT(data_len == SCRAMBLE_LENGTH_323 + 1);
+      DBUG_ASSERT(data[SCRAMBLE_LENGTH_323] == 0);
+    }
+    memcpy(end, data, data_len);
+    end+= data_len;
+  }
+  end= ma_strmake(end, mpvio->db ? mpvio->db : "", NAME_LEN) + 1;
+
+  if (mysql->server_capabilities & CLIENT_PROTOCOL_41)
+  {
+    int2store(end, (ushort) mysql->charset->nr);
+    end+= 2;
+  }
+
+  if (mysql->server_capabilities & CLIENT_PLUGIN_AUTH)
+    end= ma_strmake(end, mpvio->plugin->name, NAME_LEN) + 1;
+
+  end= ma_send_connect_attr(mysql, (unsigned char *)end);
+
+  res= ma_simple_command(mysql, COM_CHANGE_USER,
+                      buff, (ulong)(end-buff), 1, NULL);
+
+error:
+  free(buff);
+  return res;
+}
+
+static int send_client_reply_packet(MCPVIO_EXT *mpvio,
+                                    const uchar *data, int data_len)
+{
+  MYSQL *mysql= mpvio->mysql;
+  NET *net= &mysql->net;
+  char *buff, *end;
+  size_t conn_attr_len= (mysql->options.extension) ? 
+                         mysql->options.extension->connect_attrs_len : 0;
+
+  /* see end= buff+32 below, fixed size of the packet is 32 bytes */
+  buff= malloc(33 + USERNAME_LENGTH + data_len + NAME_LEN + NAME_LEN + conn_attr_len + 9);
+  end= buff;
+
+  mysql->client_flag|= mysql->options.client_flag;
+  mysql->client_flag|= CLIENT_CAPABILITIES;
+
+  if (mysql->client_flag & CLIENT_MULTI_STATEMENTS)
+    mysql->client_flag|= CLIENT_MULTI_RESULTS;
+
+#if defined(HAVE_TLS) && !defined(EMBEDDED_LIBRARY)
+  if (mysql->options.ssl_key || mysql->options.ssl_cert ||
+      mysql->options.ssl_ca || mysql->options.ssl_capath ||
+      mysql->options.ssl_cipher || mysql->options.use_ssl ||
+      mysql->options.extension->tls_verify_server_cert)
+    mysql->options.use_ssl= 1;
+  if (mysql->options.use_ssl)
+    mysql->client_flag|= CLIENT_SSL;
+#endif /* HAVE_TLS && !EMBEDDED_LIBRARY*/
+  if (mpvio->db)
+    mysql->client_flag|= CLIENT_CONNECT_WITH_DB;
+  else
+    /* See CONC-490: If no database was specified, we need
+       to unset CLIENT_CONNECT_WITH_DB flag */
+    mysql->client_flag&= ~CLIENT_CONNECT_WITH_DB;
+
+  /* CONC-635: For connections via named pipe or shared memory the server
+               indicates the capability for secure connections (TLS), but
+               doesn't support it. */
+  if ((mysql->server_capabilities & CLIENT_SSL) &&
+      (mysql->net.pvio->type == PVIO_TYPE_NAMEDPIPE ||
+       mysql->net.pvio->type == PVIO_TYPE_SHAREDMEM))
+  {
+    mysql->server_capabilities &= ~(CLIENT_SSL);
+  }
+
+  /* if server doesn't support SSL and verification of server certificate
+     was set to mandatory, we need to return an error */
+  if (mysql->options.use_ssl && !(mysql->server_capabilities & CLIENT_SSL))
+  {
+    if (mysql->options.extension->tls_verify_server_cert ||
+        (mysql->options.extension && (mysql->options.extension->tls_fp || 
+                                      mysql->options.extension->tls_fp_list)))
+    {
+      my_set_error(mysql, CR_SSL_CONNECTION_ERROR, SQLSTATE_UNKNOWN,
+                          ER(CR_SSL_CONNECTION_ERROR), 
+                          "SSL is required, but the server does not support it");
+      goto error;
+    }
+  }
+
+
+  /* Remove options that server doesn't support */
+  mysql->client_flag= mysql->client_flag &
+                       (~(CLIENT_COMPRESS | CLIENT_ZSTD_COMPRESSION | CLIENT_SSL | CLIENT_PROTOCOL_41) 
+                       | mysql->server_capabilities);
+
+  /* save compress for reconnect */
+  if (mysql->client_flag & CLIENT_COMPRESS)
+    mysql->options.compress= 1;
+
+  if (mysql->options.compress && (mysql->server_capabilities & CLIENT_COMPRESS))
+  {
+    /* For MySQL 8.0 we will use zstd compression */
+    if (mysql->server_capabilities & CLIENT_ZSTD_COMPRESSION)
+    {
+      if ((compression_plugin(net) = (MARIADB_COMPRESSION_PLUGIN *)mysql_client_find_plugin(mysql, 
+                                    _mariadb_compression_algorithm_str(COMPRESSION_ZSTD),
+                                    MARIADB_CLIENT_COMPRESSION_PLUGIN)))
+      {
+        mysql->client_flag|= CLIENT_ZSTD_COMPRESSION;
+        mysql->client_flag&= ~CLIENT_COMPRESS;
+      }
+    }
+    /* load zlib compression as default */
+    if (!compression_plugin(net))
+    {
+      if ((compression_plugin(net) = (MARIADB_COMPRESSION_PLUGIN *)mysql_client_find_plugin(mysql, 
+                                    _mariadb_compression_algorithm_str(COMPRESSION_ZLIB),
+                                    MARIADB_CLIENT_COMPRESSION_PLUGIN)))
+      {
+        mysql->client_flag|= CLIENT_COMPRESS;
+      }
+    }
+  }
+
+  if (mysql->client_flag & CLIENT_PROTOCOL_41)
+  {
+    /* 4.1 server and 4.1 client has a 32 byte option flag */
+    if (!(mysql->server_capabilities & CLIENT_MYSQL))
+      mysql->client_flag&= ~CLIENT_MYSQL;
+    int4store(buff,mysql->client_flag);
+    int4store(buff+4, net->max_packet_size);
+    buff[8]= (char) mysql->charset->nr;
+    memset(buff + 9, 0, 32-9);
+    if (!(mysql->server_capabilities & CLIENT_MYSQL))
+    {
+      uint server_extended_cap= mysql->extension->mariadb_server_capabilities;
+      uint client_extended_cap= (uint)(MARIADB_CLIENT_SUPPORTED_FLAGS >> 32);
+      mysql->extension->mariadb_client_flag=
+          server_extended_cap & client_extended_cap;
+      int4store(buff + 28, mysql->extension->mariadb_client_flag);
+    }
+    end= buff+32;
+  }
+  else
+  {
+    int2store(buff, mysql->client_flag);
+    int3store(buff+2, net->max_packet_size);
+    end= buff+5;
+  }
+#ifdef HAVE_TLS
+  if (mysql->options.ssl_key ||
+      mysql->options.ssl_cert ||
+      mysql->options.ssl_ca ||
+      mysql->options.ssl_capath ||
+      mysql->options.ssl_cipher
+#ifdef CRL_IMPLEMENTED
+      || (mysql->options.extension &&
+       (mysql->options.extension->ssl_crl ||
+        mysql->options.extension->ssl_crlpath))
+#endif
+      )
+    mysql->options.use_ssl= 1;
+  if (mysql->options.use_ssl &&
+      (mysql->client_flag & CLIENT_SSL))
+  {
+    /*
+      Send mysql->client_flag, max_packet_size - unencrypted otherwise
+      the server does not know we want to do SSL
+    */
+    if (ma_net_write(net, (unsigned char *)buff, (size_t) (end-buff)) || ma_net_flush(net))
+    {
+      my_set_error(mysql, CR_SERVER_LOST, SQLSTATE_UNKNOWN,
+                          ER(CR_SERVER_LOST_EXTENDED),
+                          "sending connection information to server",
+                          errno);
+      goto error;
+    }
+    if (ma_pvio_start_ssl(mysql->net.pvio))
+      goto error;
+  }
+#endif /* HAVE_TLS */
+
+  /* This needs to be changed as it's not useful with big packets */
+  if (mysql->user && mysql->user[0])
+    ma_strmake(end, mysql->user, USERNAME_LENGTH);
+  else
+    read_user_name(end);
+
+  /* We have to handle different version of handshake here */
+  end+= strlen(end) + 1;
+  if (data_len)
+  {
+    if (mysql->server_capabilities & CLIENT_SECURE_CONNECTION)
+    {
+      if (mysql->server_capabilities & CLIENT_PLUGIN_AUTH_LENENC_CLIENT_DATA)
+      {
+        end= (char *)mysql_net_store_length((uchar *)end, data_len);
+      }
+      else {
+        /* Without CLIENT_PLUGIN_AUTH_LENENC_CLIENT_DATA capability password
+           length is limited up to 255 chars */
+        if (data_len > 0xFF)
+          goto error;
+        *end++= data_len;
+      }
+      memcpy(end, data, data_len);
+      end+= data_len;
+    }
+    else
+    {
+      DBUG_ASSERT(data_len == SCRAMBLE_LENGTH_323 + 1); /* incl. \0 at the end */
+      memcpy(end, data, data_len);
+      end+= data_len;
+    }
+  }
+  else
+    *end++= 0;
+
+  /* Add database if needed */
+  if (mpvio->db && (mysql->server_capabilities & CLIENT_CONNECT_WITH_DB))
+  {
+    end= ma_strmake(end, mpvio->db, NAME_LEN) + 1;
+    mysql->db= strdup(mpvio->db);
+  }
+
+  if (mysql->server_capabilities & CLIENT_PLUGIN_AUTH)
+    end= ma_strmake(end, mpvio->plugin->name, NAME_LEN) + 1;
+
+  end= ma_send_connect_attr(mysql, (unsigned char *)end);
+
+  /* MySQL 8.0: 
+     If zstd compresson was specified, the server expects
+     1 byte for compression level
+  */
+  if (mysql->client_flag & CLIENT_ZSTD_COMPRESSION)
+  {
+    int4store(end, (unsigned int)3);
+    end+= 4;
+  }
+
+  /* Write authentication package */
+  if (ma_net_write(net, (unsigned char *)buff, (size_t) (end-buff)) || ma_net_flush(net))
+  {
+    my_set_error(mysql, CR_SERVER_LOST, SQLSTATE_UNKNOWN,
+                        ER(CR_SERVER_LOST_EXTENDED),
+                        "sending authentication information",
+                        errno);
+    goto error;
+  }
+  free(buff);
+  return 0;
+
+error:
+  free(buff);
+  return 1;
+}
+
+/**
+  vio->read_packet() callback method for client authentication plugins
+
+  This function is called by a client authentication plugin, when it wants
+  to read data from the server.
+*/
+
+static int client_mpvio_read_packet(struct st_plugin_vio *mpv, uchar **buf)
+{
+  MCPVIO_EXT *mpvio= (MCPVIO_EXT*)mpv;
+  MYSQL *mysql= mpvio->mysql;
+  ulong  pkt_len;
+
+  /* there are cached data left, feed it to a plugin */
+  if (mpvio->cached_server_reply.pkt)
+  {
+    *buf= mpvio->cached_server_reply.pkt;
+    mpvio->cached_server_reply.pkt= 0;
+    mpvio->packets_read++;
+    return mpvio->cached_server_reply.pkt_len;
+  }
+
+  if (mpvio->packets_read == 0)
+  {
+    /*
+      the server handshake packet came from the wrong plugin,
+      or it's mysql_change_user(). Either way, there is no data
+      for a plugin to read. send a dummy packet to the server
+      to initiate a dialog.
+    */
+    if (client_mpvio_write_packet(mpv, 0, 0))
+      return (int)packet_error;
+  }
+
+  /* otherwise read the data */
+  if ((pkt_len= ma_net_safe_read(mysql)) == packet_error)
+    return (int)packet_error;
+
+  mpvio->last_read_packet_len= pkt_len;
+  *buf= mysql->net.read_pos;
+
+  /* was it a request to change plugins ? */
+  if (pkt_len && **buf == 254)
+    return (int)packet_error; /* if yes, this plugin shan't continue */
+
+  /*
+    the server sends \1\255 or \1\254 instead of just \255 or \254 -
+    for us to not confuse it with an error or "change plugin" packets.
+    We remove this escaping \1 here.
+
+    See also server_mpvio_write_packet() where the escaping is done.
+  */
+  if (pkt_len && **buf == 1)
+  {
+    (*buf)++;
+    pkt_len--;
+  }
+  mpvio->packets_read++;
+  return pkt_len;
+}
+
+/**
+  vio->write_packet() callback method for client authentication plugins
+
+  This function is called by a client authentication plugin, when it wants
+  to send data to the server.
+
+  It transparently wraps the data into a change user or authentication
+  handshake packet, if necessary.
+*/
+
+static int client_mpvio_write_packet(struct st_plugin_vio *mpv,
+                                     const uchar *pkt, size_t pkt_len)
+{
+  int res;
+  MCPVIO_EXT *mpvio= (MCPVIO_EXT*)mpv;
+
+  if (mpvio->packets_written == 0)
+  {
+    if (mpvio->mysql_change_user)
+      res= send_change_user_packet(mpvio, pkt, (int)pkt_len);
+    else
+      res= send_client_reply_packet(mpvio, pkt, (int)pkt_len);
+  }
+  else
+  {
+    NET *net= &mpvio->mysql->net;
+    if (mpvio->mysql->thd)
+      res= 1; /* no chit-chat in embedded */
+    else
+      res= ma_net_write(net, (unsigned char *)pkt, pkt_len) || ma_net_flush(net);
+  }
+
+  if (res)
+  {
+    /* don't overwrite errors */
+    if (!mysql_errno(mpvio->mysql))
+      my_set_error(mpvio->mysql, CR_SERVER_LOST, SQLSTATE_UNKNOWN,
+                                 ER(CR_SERVER_LOST_EXTENDED),
+                                 "sending authentication information",
+                                 errno);
+  }
+  mpvio->packets_written++;
+  return res;
+}
+
+/**
+  fills MYSQL_PLUGIN_VIO_INFO structure with the information about the
+  connection
+*/
+
+void mpvio_info(MARIADB_PVIO *pvio, MYSQL_PLUGIN_VIO_INFO *info)
+{
+  memset(info, 0, sizeof(*info));
+  switch (pvio->type) {
+  case PVIO_TYPE_SOCKET:
+    info->protocol= MYSQL_VIO_TCP;
+    ma_pvio_get_handle(pvio, &info->socket);
+    return;
+  case PVIO_TYPE_UNIXSOCKET:
+    info->protocol= MYSQL_VIO_SOCKET;
+    ma_pvio_get_handle(pvio, &info->socket);
+    return;
+    /*
+  case VIO_TYPE_SSL:
+    {
+      struct sockaddr addr;
+      SOCKET_SIZE_TYPE addrlen= sizeof(addr);
+      if (getsockname(vio->sd, &addr, &addrlen))
+        return;
+      info->protocol= addr.sa_family == AF_UNIX ?
+        MYSQL_VIO_SOCKET : MYSQL_VIO_TCP;
+      info->socket= vio->sd;
+      return;
+    }
+    */
+#ifdef _WIN32
+    /*
+  case VIO_TYPE_NAMEDPIPE:
+    info->protocol= MYSQL_VIO_PIPE;
+    info->handle= vio->hPipe;
+    return;
+    */
+/* not supported yet
+  case VIO_TYPE_SHARED_MEMORY:
+    info->protocol= MYSQL_VIO_MEMORY;
+    info->handle= vio->handle_file_map; 
+    return;
+*/
+#endif
+  default: DBUG_ASSERT(0);
+  }
+}
+
+static void client_mpvio_info(MYSQL_PLUGIN_VIO *vio,
+                              MYSQL_PLUGIN_VIO_INFO *info)
+{
+  MCPVIO_EXT *mpvio= (MCPVIO_EXT*)vio;
+  mpvio_info(mpvio->mysql->net.pvio, info);
+}
+
+/**
+  Client side of the plugin driver authentication.
+
+  @note this is used by both the mysql_real_connect and mysql_change_user
+
+  @param mysql       mysql
+  @param data        pointer to the plugin auth data (scramble) in the
+                     handshake packet
+  @param data_len    the length of the data
+  @param data_plugin a plugin that data were prepared for
+                     or 0 if it's mysql_change_user()
+  @param db          initial db to use, can be 0
+
+  @retval 0 ok
+  @retval 1 error
+*/
+
+int run_plugin_auth(MYSQL *mysql, char *data, uint data_len,
+                    const char *data_plugin, const char *db)
+{
+  const char    *auth_plugin_name= NULL;
+  auth_plugin_t *auth_plugin;
+  MCPVIO_EXT    mpvio;
+  ulong		pkt_length;
+  int           res;
+
+
+  /* determine the default/initial plugin to use */
+  if (mysql->server_capabilities & CLIENT_PLUGIN_AUTH)
+  {
+    if (mysql->options.extension && mysql->options.extension->default_auth)
+      auth_plugin_name= mysql->options.extension->default_auth;
+    else if (data_plugin)
+      auth_plugin_name= data_plugin;
+  }
+  if (!auth_plugin_name)
+  {
+    if (mysql->server_capabilities & CLIENT_PROTOCOL_41)
+       auth_plugin_name= native_password_plugin_name;
+    else
+       auth_plugin_name= "mysql_old_password";
+  }
+  if (!(auth_plugin= (auth_plugin_t*) mysql_client_find_plugin(mysql,
+                     auth_plugin_name, MYSQL_CLIENT_AUTHENTICATION_PLUGIN)))
+    auth_plugin= &dummy_fallback_client_plugin;
+
+  mysql->net.last_errno= 0; /* just in case */
+
+  if (data_plugin && strcmp(data_plugin, auth_plugin_name))
+  {
+    /* data was prepared for a different plugin, so we don't
+       send any data */
+    data= 0;
+    data_len= 0;
+  }
+
+  mpvio.mysql_change_user= data_plugin == 0;
+  mpvio.cached_server_reply.pkt= (uchar*)data;
+  mpvio.cached_server_reply.pkt_len= data_len;
+  mpvio.read_packet= client_mpvio_read_packet;
+  mpvio.write_packet= client_mpvio_write_packet;
+  mpvio.info= client_mpvio_info;
+  mpvio.mysql= mysql;
+  mpvio.packets_read= mpvio.packets_written= 0;
+  mpvio.db= db;
+
+retry:
+  mpvio.plugin= auth_plugin;
+
+  if (auth_plugin_name &&
+     mysql->options.extension &&
+     mysql->options.extension->restricted_auth)
+  {
+    if (!strstr(mysql->options.extension->restricted_auth, auth_plugin_name))
+    {
+      my_set_error(mysql, CR_PLUGIN_NOT_ALLOWED, SQLSTATE_UNKNOWN, 0, data_plugin);
+      return 1;
+    }
+  }
+
+  mysql->net.read_pos[0]= 0;
+  res= auth_plugin->authenticate_user((struct st_plugin_vio *)&mpvio, mysql);
+
+  if ((res == CR_ERROR && !mysql->net.buff) ||
+      (res > CR_OK && mysql->net.read_pos[0] != 254))
+  {
+    /*
+      the plugin returned an error. write it down in mysql,
+      unless the error code is CR_ERROR and mysql->net.last_errno
+      is already set (the plugin has done it)
+    */
+    if (res > CR_ERROR)
+      my_set_error(mysql, res, SQLSTATE_UNKNOWN, 0);
+    else
+      if (!mysql->net.last_errno) {
+        my_set_error(mysql, CR_UNKNOWN_ERROR, SQLSTATE_UNKNOWN, 0);
+      }
+    return 1;
+  }
+
+  /* read the OK packet (or use the cached value in mysql->net.read_pos */
+  if (res == CR_OK)
+    pkt_length= ma_net_safe_read(mysql);
+  else /* res == CR_OK_HANDSHAKE_COMPLETE or an error */
+    pkt_length= mpvio.last_read_packet_len;
+
+  if (pkt_length == packet_error)
+  {
+    if (mysql->net.last_errno == CR_SERVER_LOST)
+      my_set_error(mysql, CR_SERVER_LOST, SQLSTATE_UNKNOWN,
+                          ER(CR_SERVER_LOST_EXTENDED),
+                          "reading authorization packet",
+                          errno);
+    return 1;
+  }
+  if (mysql->net.read_pos[0] == 254)
+  {
+    /* The server asked to use a different authentication plugin */
+    if (pkt_length == 1)
+    {
+      /* old "use short scramble" packet */
+      auth_plugin_name= old_password_plugin_name;
+      mpvio.cached_server_reply.pkt= (uchar*)mysql->scramble_buff;
+      mpvio.cached_server_reply.pkt_len= SCRAMBLE_LENGTH + 1;
+    }
+    else
+    {
+      /* new "use different plugin" packet */
+      uint len;
+      auth_plugin_name= (char*)mysql->net.read_pos + 1;
+      len= (uint)strlen(auth_plugin_name); /* safe as ma_net_read always appends \0 */
+      mpvio.cached_server_reply.pkt_len= pkt_length - len - 2;
+      mpvio.cached_server_reply.pkt= mysql->net.read_pos + len + 2;
+    }
+    if (!(auth_plugin= (auth_plugin_t *) mysql_client_find_plugin(mysql,
+                         auth_plugin_name, MYSQL_CLIENT_AUTHENTICATION_PLUGIN)))
+      auth_plugin= &dummy_fallback_client_plugin;
+
+    goto retry;
+
+  }
+  /*
+    net->read_pos[0] should always be 0 here if the server implements
+    the protocol correctly
+  */
+  if (mysql->net.read_pos[0] == 0)
+    return ma_read_ok_packet(mysql, mysql->net.read_pos + 1, pkt_length);
+  return 1;
+}
+
diff --git a/libmariadb/plugins/auth/old_password.c b/libmariadb/plugins/auth/old_password.c
new file mode 100644
index 00000000..07756e92
--- /dev/null
+++ b/libmariadb/plugins/auth/old_password.c
@@ -0,0 +1,117 @@
+/************************************************************************************
+   Copyright (C) 2014,2015,2018 MariaDB Corporation AB
+   
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public
+   License as published by the Free Software Foundation; either
+   version 2 of the License, or (at your option) any later version.
+   
+   This library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+   
+   You should have received a copy of the GNU Library General Public
+   License along with this library; if not see <http://www.gnu.org/licenses>
+   or write to the Free Software Foundation, Inc., 
+   51 Franklin St., Fifth Floor, Boston, MA 02110, USA
+*************************************************************************************/
+#include <ma_global.h>
+#include <mysql.h>
+#include <mysql/client_plugin.h>
+#include <string.h>
+#include <memory.h>
+#include <errmsg.h>
+
+
+/* function prototypes */
+static int auth_old_password(MYSQL_PLUGIN_VIO *vio, MYSQL *mysql);
+
+typedef struct st_mysql_client_plugin_AUTHENTICATION auth_plugin_t;
+
+typedef struct {
+  int (*read_packet)(struct st_plugin_vio *vio, uchar **buf);
+  int (*write_packet)(struct st_plugin_vio *vio, const uchar *pkt, size_t pkt_len);
+  void (*info)(struct st_plugin_vio *vio, struct st_plugin_vio_info *info);
+  /* -= end of MYSQL_PLUGIN_VIO =- */
+  MYSQL *mysql;
+  auth_plugin_t *plugin;             /**< what plugin we're under */
+  const char *db;
+  struct {
+    uchar *pkt;                      /**< pointer into NET::buff */
+    uint pkt_len;
+  } cached_server_reply;
+  uint packets_read, packets_written; /**< counters for send/received packets */
+  my_bool mysql_change_user;          /**< if it's mysql_change_user() */
+  int last_read_packet_len;           /**< the length of the last *read* packet */
+} MCPVIO_EXT;
+
+#ifndef PLUGIN_DYNAMIC
+struct st_mysql_client_plugin_AUTHENTICATION mysql_old_password_client_plugin=
+#else
+struct st_mysql_client_plugin_AUTHENTICATION _mysql_client_plugin_declaration_ =
+#endif
+{
+  MYSQL_CLIENT_AUTHENTICATION_PLUGIN,
+  MYSQL_CLIENT_AUTHENTICATION_PLUGIN_INTERFACE_VERSION,
+  "mysql_old_password",
+  "Sergei Golubchik, R.J. Silk, Georg Richter",
+  "Old (pre 4.1) authentication plugin",
+  {1,0,0},
+  "LGPL",
+  NULL,
+  NULL,
+  NULL,
+  NULL,
+  auth_old_password
+};
+
+/**
+  client authentication plugin that does old MySQL authentication
+  using an 8-byte (4.0-) scramble
+*/
+
+static int auth_old_password(MYSQL_PLUGIN_VIO *vio, MYSQL *mysql)
+{
+  uchar *pkt;
+  int pkt_len;
+
+  if (((MCPVIO_EXT *)vio)->mysql_change_user)
+  {
+    /*
+      in mysql_change_user() the client sends the first packet.
+      we use the old scramble.
+    */
+    pkt= (uchar*)mysql->scramble_buff;
+  }
+  else
+  {
+    /* read the scramble */
+    if ((pkt_len= vio->read_packet(vio, &pkt)) < 0)
+      return CR_ERROR;
+
+    if (pkt_len != SCRAMBLE_LENGTH_323 + 1 &&
+        pkt_len != SCRAMBLE_LENGTH + 1)
+        return CR_SERVER_HANDSHAKE_ERR;
+
+    /* save it in MYSQL */
+    memmove(mysql->scramble_buff, pkt, pkt_len - 1);
+    mysql->scramble_buff[pkt_len - 1] = 0;
+  }
+
+  if (mysql && mysql->passwd[0])
+  {
+    char scrambled[SCRAMBLE_LENGTH_323 + 1];
+    ma_scramble_323(scrambled, (char*)pkt, mysql->passwd);
+    if (vio->write_packet(vio, (uchar*)scrambled, SCRAMBLE_LENGTH_323 + 1))
+      return CR_ERROR;
+  }
+  else
+    if (vio->write_packet(vio, 0, 0)) /* no password */
+      return CR_ERROR;
+
+  return CR_OK;
+}
+
+
+
diff --git a/libmariadb/plugins/auth/ref10/api.h b/libmariadb/plugins/auth/ref10/api.h
new file mode 100644
index 00000000..9f1db7e5
--- /dev/null
+++ b/libmariadb/plugins/auth/ref10/api.h
@@ -0,0 +1,3 @@
+#define CRYPTO_PUBLICKEYBYTES 32
+#define CRYPTO_BYTES 64
+#define CRYPTO_DETERMINISTIC 1
diff --git a/libmariadb/plugins/auth/ref10/base.h b/libmariadb/plugins/auth/ref10/base.h
new file mode 100644
index 00000000..573bd8a0
--- /dev/null
+++ b/libmariadb/plugins/auth/ref10/base.h
@@ -0,0 +1,1344 @@
+{
+ {
+  { 25967493,-14356035,29566456,3660896,-12694345,4014787,27544626,-11754271,-6079156,2047605 },
+  { -12545711,934262,-2722910,3049990,-727428,9406986,12720692,5043384,19500929,-15469378 },
+  { -8738181,4489570,9688441,-14785194,10184609,-12363380,29287919,11864899,-24514362,-4438546 },
+ },
+ {
+  { -12815894,-12976347,-21581243,11784320,-25355658,-2750717,-11717903,-3814571,-358445,-10211303 },
+  { -21703237,6903825,27185491,6451973,-29577724,-9554005,-15616551,11189268,-26829678,-5319081 },
+  { 26966642,11152617,32442495,15396054,14353839,-12752335,-3128826,-9541118,-15472047,-4166697 },
+ },
+ {
+  { 15636291,-9688557,24204773,-7912398,616977,-16685262,27787600,-14772189,28944400,-1550024 },
+  { 16568933,4717097,-11556148,-1102322,15682896,-11807043,16354577,-11775962,7689662,11199574 },
+  { 30464156,-5976125,-11779434,-15670865,23220365,15915852,7512774,10017326,-17749093,-9920357 },
+ },
+ {
+  { -17036878,13921892,10945806,-6033431,27105052,-16084379,-28926210,15006023,3284568,-6276540 },
+  { 23599295,-8306047,-11193664,-7687416,13236774,10506355,7464579,9656445,13059162,10374397 },
+  { 7798556,16710257,3033922,2874086,28997861,2835604,32406664,-3839045,-641708,-101325 },
+ },
+ {
+  { 10861363,11473154,27284546,1981175,-30064349,12577861,32867885,14515107,-15438304,10819380 },
+  { 4708026,6336745,20377586,9066809,-11272109,6594696,-25653668,12483688,-12668491,5581306 },
+  { 19563160,16186464,-29386857,4097519,10237984,-4348115,28542350,13850243,-23678021,-15815942 },
+ },
+ {
+  { -15371964,-12862754,32573250,4720197,-26436522,5875511,-19188627,-15224819,-9818940,-12085777 },
+  { -8549212,109983,15149363,2178705,22900618,4543417,3044240,-15689887,1762328,14866737 },
+  { -18199695,-15951423,-10473290,1707278,-17185920,3916101,-28236412,3959421,27914454,4383652 },
+ },
+ {
+  { 5153746,9909285,1723747,-2777874,30523605,5516873,19480852,5230134,-23952439,-15175766 },
+  { -30269007,-3463509,7665486,10083793,28475525,1649722,20654025,16520125,30598449,7715701 },
+  { 28881845,14381568,9657904,3680757,-20181635,7843316,-31400660,1370708,29794553,-1409300 },
+ },
+ {
+  { 14499471,-2729599,-33191113,-4254652,28494862,14271267,30290735,10876454,-33154098,2381726 },
+  { -7195431,-2655363,-14730155,462251,-27724326,3941372,-6236617,3696005,-32300832,15351955 },
+  { 27431194,8222322,16448760,-3907995,-18707002,11938355,-32961401,-2970515,29551813,10109425 },
+ },
+},
+{
+ {
+  { -13657040,-13155431,-31283750,11777098,21447386,6519384,-2378284,-1627556,10092783,-4764171 },
+  { 27939166,14210322,4677035,16277044,-22964462,-12398139,-32508754,12005538,-17810127,12803510 },
+  { 17228999,-15661624,-1233527,300140,-1224870,-11714777,30364213,-9038194,18016357,4397660 },
+ },
+ {
+  { -10958843,-7690207,4776341,-14954238,27850028,-15602212,-26619106,14544525,-17477504,982639 },
+  { 29253598,15796703,-2863982,-9908884,10057023,3163536,7332899,-4120128,-21047696,9934963 },
+  { 5793303,16271923,-24131614,-10116404,29188560,1206517,-14747930,4559895,-30123922,-10897950 },
+ },
+ {
+  { -27643952,-11493006,16282657,-11036493,28414021,-15012264,24191034,4541697,-13338309,5500568 },
+  { 12650548,-1497113,9052871,11355358,-17680037,-8400164,-17430592,12264343,10874051,13524335 },
+  { 25556948,-3045990,714651,2510400,23394682,-10415330,33119038,5080568,-22528059,5376628 },
+ },
+ {
+  { -26088264,-4011052,-17013699,-3537628,-6726793,1920897,-22321305,-9447443,4535768,1569007 },
+  { -2255422,14606630,-21692440,-8039818,28430649,8775819,-30494562,3044290,31848280,12543772 },
+  { -22028579,2943893,-31857513,6777306,13784462,-4292203,-27377195,-2062731,7718482,14474653 },
+ },
+ {
+  { 2385315,2454213,-22631320,46603,-4437935,-15680415,656965,-7236665,24316168,-5253567 },
+  { 13741529,10911568,-33233417,-8603737,-20177830,-1033297,33040651,-13424532,-20729456,8321686 },
+  { 21060490,-2212744,15712757,-4336099,1639040,10656336,23845965,-11874838,-9984458,608372 },
+ },
+ {
+  { -13672732,-15087586,-10889693,-7557059,-6036909,11305547,1123968,-6780577,27229399,23887 },
+  { -23244140,-294205,-11744728,14712571,-29465699,-2029617,12797024,-6440308,-1633405,16678954 },
+  { -29500620,4770662,-16054387,14001338,7830047,9564805,-1508144,-4795045,-17169265,4904953 },
+ },
+ {
+  { 24059557,14617003,19037157,-15039908,19766093,-14906429,5169211,16191880,2128236,-4326833 },
+  { -16981152,4124966,-8540610,-10653797,30336522,-14105247,-29806336,916033,-6882542,-2986532 },
+  { -22630907,12419372,-7134229,-7473371,-16478904,16739175,285431,2763829,15736322,4143876 },
+ },
+ {
+  { 2379352,11839345,-4110402,-5988665,11274298,794957,212801,-14594663,23527084,-16458268 },
+  { 33431127,-11130478,-17838966,-15626900,8909499,8376530,-32625340,4087881,-15188911,-14416214 },
+  { 1767683,7197987,-13205226,-2022635,-13091350,448826,5799055,4357868,-4774191,-16323038 },
+ },
+},
+{
+ {
+  { 6721966,13833823,-23523388,-1551314,26354293,-11863321,23365147,-3949732,7390890,2759800 },
+  { 4409041,2052381,23373853,10530217,7676779,-12885954,21302353,-4264057,1244380,-12919645 },
+  { -4421239,7169619,4982368,-2957590,30256825,-2777540,14086413,9208236,15886429,16489664 },
+ },
+ {
+  { 1996075,10375649,14346367,13311202,-6874135,-16438411,-13693198,398369,-30606455,-712933 },
+  { -25307465,9795880,-2777414,14878809,-33531835,14780363,13348553,12076947,-30836462,5113182 },
+  { -17770784,11797796,31950843,13929123,-25888302,12288344,-30341101,-7336386,13847711,5387222 },
+ },
+ {
+  { -18582163,-3416217,17824843,-2340966,22744343,-10442611,8763061,3617786,-19600662,10370991 },
+  { 20246567,-14369378,22358229,-543712,18507283,-10413996,14554437,-8746092,32232924,16763880 },
+  { 9648505,10094563,26416693,14745928,-30374318,-6472621,11094161,15689506,3140038,-16510092 },
+ },
+ {
+  { -16160072,5472695,31895588,4744994,8823515,10365685,-27224800,9448613,-28774454,366295 },
+  { 19153450,11523972,-11096490,-6503142,-24647631,5420647,28344573,8041113,719605,11671788 },
+  { 8678025,2694440,-6808014,2517372,4964326,11152271,-15432916,-15266516,27000813,-10195553 },
+ },
+ {
+  { -15157904,7134312,8639287,-2814877,-7235688,10421742,564065,5336097,6750977,-14521026 },
+  { 11836410,-3979488,26297894,16080799,23455045,15735944,1695823,-8819122,8169720,16220347 },
+  { -18115838,8653647,17578566,-6092619,-8025777,-16012763,-11144307,-2627664,-5990708,-14166033 },
+ },
+ {
+  { -23308498,-10968312,15213228,-10081214,-30853605,-11050004,27884329,2847284,2655861,1738395 },
+  { -27537433,-14253021,-25336301,-8002780,-9370762,8129821,21651608,-3239336,-19087449,-11005278 },
+  { 1533110,3437855,23735889,459276,29970501,11335377,26030092,5821408,10478196,8544890 },
+ },
+ {
+  { 32173121,-16129311,24896207,3921497,22579056,-3410854,19270449,12217473,17789017,-3395995 },
+  { -30552961,-2228401,-15578829,-10147201,13243889,517024,15479401,-3853233,30460520,1052596 },
+  { -11614875,13323618,32618793,8175907,-15230173,12596687,27491595,-4612359,3179268,-9478891 },
+ },
+ {
+  { 31947069,-14366651,-4640583,-15339921,-15125977,-6039709,-14756777,-16411740,19072640,-9511060 },
+  { 11685058,11822410,3158003,-13952594,33402194,-4165066,5977896,-5215017,473099,5040608 },
+  { -20290863,8198642,-27410132,11602123,1290375,-2799760,28326862,1721092,-19558642,-3131606 },
+ },
+},
+{
+ {
+  { 7881532,10687937,7578723,7738378,-18951012,-2553952,21820786,8076149,-27868496,11538389 },
+  { -19935666,3899861,18283497,-6801568,-15728660,-11249211,8754525,7446702,-5676054,5797016 },
+  { -11295600,-3793569,-15782110,-7964573,12708869,-8456199,2014099,-9050574,-2369172,-5877341 },
+ },
+ {
+  { -22472376,-11568741,-27682020,1146375,18956691,16640559,1192730,-3714199,15123619,10811505 },
+  { 14352098,-3419715,-18942044,10822655,32750596,4699007,-70363,15776356,-28886779,-11974553 },
+  { -28241164,-8072475,-4978962,-5315317,29416931,1847569,-20654173,-16484855,4714547,-9600655 },
+ },
+ {
+  { 15200332,8368572,19679101,15970074,-31872674,1959451,24611599,-4543832,-11745876,12340220 },
+  { 12876937,-10480056,33134381,6590940,-6307776,14872440,9613953,8241152,15370987,9608631 },
+  { -4143277,-12014408,8446281,-391603,4407738,13629032,-7724868,15866074,-28210621,-8814099 },
+ },
+ {
+  { 26660628,-15677655,8393734,358047,-7401291,992988,-23904233,858697,20571223,8420556 },
+  { 14620715,13067227,-15447274,8264467,14106269,15080814,33531827,12516406,-21574435,-12476749 },
+  { 236881,10476226,57258,-14677024,6472998,2466984,17258519,7256740,8791136,15069930 },
+ },
+ {
+  { 1276410,-9371918,22949635,-16322807,-23493039,-5702186,14711875,4874229,-30663140,-2331391 },
+  { 5855666,4990204,-13711848,7294284,-7804282,1924647,-1423175,-7912378,-33069337,9234253 },
+  { 20590503,-9018988,31529744,-7352666,-2706834,10650548,31559055,-11609587,18979186,13396066 },
+ },
+ {
+  { 24474287,4968103,22267082,4407354,24063882,-8325180,-18816887,13594782,33514650,7021958 },
+  { -11566906,-6565505,-21365085,15928892,-26158305,4315421,-25948728,-3916677,-21480480,12868082 },
+  { -28635013,13504661,19988037,-2132761,21078225,6443208,-21446107,2244500,-12455797,-8089383 },
+ },
+ {
+  { -30595528,13793479,-5852820,319136,-25723172,-6263899,33086546,8957937,-15233648,5540521 },
+  { -11630176,-11503902,-8119500,-7643073,2620056,1022908,-23710744,-1568984,-16128528,-14962807 },
+  { 23152971,775386,27395463,14006635,-9701118,4649512,1689819,892185,-11513277,-15205948 },
+ },
+ {
+  { 9770129,9586738,26496094,4324120,1556511,-3550024,27453819,4763127,-19179614,5867134 },
+  { -32765025,1927590,31726409,-4753295,23962434,-16019500,27846559,5931263,-29749703,-16108455 },
+  { 27461885,-2977536,22380810,1815854,-23033753,-3031938,7283490,-15148073,-19526700,7734629 },
+ },
+},
+{
+ {
+  { -8010264,-9590817,-11120403,6196038,29344158,-13430885,7585295,-3176626,18549497,15302069 },
+  { -32658337,-6171222,-7672793,-11051681,6258878,13504381,10458790,-6418461,-8872242,8424746 },
+  { 24687205,8613276,-30667046,-3233545,1863892,-1830544,19206234,7134917,-11284482,-828919 },
+ },
+ {
+  { 11334899,-9218022,8025293,12707519,17523892,-10476071,10243738,-14685461,-5066034,16498837 },
+  { 8911542,6887158,-9584260,-6958590,11145641,-9543680,17303925,-14124238,6536641,10543906 },
+  { -28946384,15479763,-17466835,568876,-1497683,11223454,-2669190,-16625574,-27235709,8876771 },
+ },
+ {
+  { -25742899,-12566864,-15649966,-846607,-33026686,-796288,-33481822,15824474,-604426,-9039817 },
+  { 10330056,70051,7957388,-9002667,9764902,15609756,27698697,-4890037,1657394,3084098 },
+  { 10477963,-7470260,12119566,-13250805,29016247,-5365589,31280319,14396151,-30233575,15272409 },
+ },
+ {
+  { -12288309,3169463,28813183,16658753,25116432,-5630466,-25173957,-12636138,-25014757,1950504 },
+  { -26180358,9489187,11053416,-14746161,-31053720,5825630,-8384306,-8767532,15341279,8373727 },
+  { 28685821,7759505,-14378516,-12002860,-31971820,4079242,298136,-10232602,-2878207,15190420 },
+ },
+ {
+  { -32932876,13806336,-14337485,-15794431,-24004620,10940928,8669718,2742393,-26033313,-6875003 },
+  { -1580388,-11729417,-25979658,-11445023,-17411874,-10912854,9291594,-16247779,-12154742,6048605 },
+  { -30305315,14843444,1539301,11864366,20201677,1900163,13934231,5128323,11213262,9168384 },
+ },
+ {
+  { -26280513,11007847,19408960,-940758,-18592965,-4328580,-5088060,-11105150,20470157,-16398701 },
+  { -23136053,9282192,14855179,-15390078,-7362815,-14408560,-22783952,14461608,14042978,5230683 },
+  { 29969567,-2741594,-16711867,-8552442,9175486,-2468974,21556951,3506042,-5933891,-12449708 },
+ },
+ {
+  { -3144746,8744661,19704003,4581278,-20430686,6830683,-21284170,8971513,-28539189,15326563 },
+  { -19464629,10110288,-17262528,-3503892,-23500387,1355669,-15523050,15300988,-20514118,9168260 },
+  { -5353335,4488613,-23803248,16314347,7780487,-15638939,-28948358,9601605,33087103,-9011387 },
+ },
+ {
+  { -19443170,-15512900,-20797467,-12445323,-29824447,10229461,-27444329,-15000531,-5996870,15664672 },
+  { 23294591,-16632613,-22650781,-8470978,27844204,11461195,13099750,-2460356,18151676,13417686 },
+  { -24722913,-4176517,-31150679,5988919,-26858785,6685065,1661597,-12551441,15271676,-15452665 },
+ },
+},
+{
+ {
+  { 11433042,-13228665,8239631,-5279517,-1985436,-725718,-18698764,2167544,-6921301,-13440182 },
+  { -31436171,15575146,30436815,12192228,-22463353,9395379,-9917708,-8638997,12215110,12028277 },
+  { 14098400,6555944,23007258,5757252,-15427832,-12950502,30123440,4617780,-16900089,-655628 },
+ },
+ {
+  { -4026201,-15240835,11893168,13718664,-14809462,1847385,-15819999,10154009,23973261,-12684474 },
+  { -26531820,-3695990,-1908898,2534301,-31870557,-16550355,18341390,-11419951,32013174,-10103539 },
+  { -25479301,10876443,-11771086,-14625140,-12369567,1838104,21911214,6354752,4425632,-837822 },
+ },
+ {
+  { -10433389,-14612966,22229858,-3091047,-13191166,776729,-17415375,-12020462,4725005,14044970 },
+  { 19268650,-7304421,1555349,8692754,-21474059,-9910664,6347390,-1411784,-19522291,-16109756 },
+  { -24864089,12986008,-10898878,-5558584,-11312371,-148526,19541418,8180106,9282262,10282508 },
+ },
+ {
+  { -26205082,4428547,-8661196,-13194263,4098402,-14165257,15522535,8372215,5542595,-10702683 },
+  { -10562541,14895633,26814552,-16673850,-17480754,-2489360,-2781891,6993761,-18093885,10114655 },
+  { -20107055,-929418,31422704,10427861,-7110749,6150669,-29091755,-11529146,25953725,-106158 },
+ },
+ {
+  { -4234397,-8039292,-9119125,3046000,2101609,-12607294,19390020,6094296,-3315279,12831125 },
+  { -15998678,7578152,5310217,14408357,-33548620,-224739,31575954,6326196,7381791,-2421839 },
+  { -20902779,3296811,24736065,-16328389,18374254,7318640,6295303,8082724,-15362489,12339664 },
+ },
+ {
+  { 27724736,2291157,6088201,-14184798,1792727,5857634,13848414,15768922,25091167,14856294 },
+  { -18866652,8331043,24373479,8541013,-701998,-9269457,12927300,-12695493,-22182473,-9012899 },
+  { -11423429,-5421590,11632845,3405020,30536730,-11674039,-27260765,13866390,30146206,9142070 },
+ },
+ {
+  { 3924129,-15307516,-13817122,-10054960,12291820,-668366,-27702774,9326384,-8237858,4171294 },
+  { -15921940,16037937,6713787,16606682,-21612135,2790944,26396185,3731949,345228,-5462949 },
+  { -21327538,13448259,25284571,1143661,20614966,-8849387,2031539,-12391231,-16253183,-13582083 },
+ },
+ {
+  { 31016211,-16722429,26371392,-14451233,-5027349,14854137,17477601,3842657,28012650,-16405420 },
+  { -5075835,9368966,-8562079,-4600902,-15249953,6970560,-9189873,16292057,-8867157,3507940 },
+  { 29439664,3537914,23333589,6997794,-17555561,-11018068,-15209202,-15051267,-9164929,6580396 },
+ },
+},
+{
+ {
+  { -12185861,-7679788,16438269,10826160,-8696817,-6235611,17860444,-9273846,-2095802,9304567 },
+  { 20714564,-4336911,29088195,7406487,11426967,-5095705,14792667,-14608617,5289421,-477127 },
+  { -16665533,-10650790,-6160345,-13305760,9192020,-1802462,17271490,12349094,26939669,-3752294 },
+ },
+ {
+  { -12889898,9373458,31595848,16374215,21471720,13221525,-27283495,-12348559,-3698806,117887 },
+  { 22263325,-6560050,3984570,-11174646,-15114008,-566785,28311253,5358056,-23319780,541964 },
+  { 16259219,3261970,2309254,-15534474,-16885711,-4581916,24134070,-16705829,-13337066,-13552195 },
+ },
+ {
+  { 9378160,-13140186,-22845982,-12745264,28198281,-7244098,-2399684,-717351,690426,14876244 },
+  { 24977353,-314384,-8223969,-13465086,28432343,-1176353,-13068804,-12297348,-22380984,6618999 },
+  { -1538174,11685646,12944378,13682314,-24389511,-14413193,8044829,-13817328,32239829,-5652762 },
+ },
+ {
+  { -18603066,4762990,-926250,8885304,-28412480,-3187315,9781647,-10350059,32779359,5095274 },
+  { -33008130,-5214506,-32264887,-3685216,9460461,-9327423,-24601656,14506724,21639561,-2630236 },
+  { -16400943,-13112215,25239338,15531969,3987758,-4499318,-1289502,-6863535,17874574,558605 },
+ },
+ {
+  { -13600129,10240081,9171883,16131053,-20869254,9599700,33499487,5080151,2085892,5119761 },
+  { -22205145,-2519528,-16381601,414691,-25019550,2170430,30634760,-8363614,-31999993,-5759884 },
+  { -6845704,15791202,8550074,-1312654,29928809,-12092256,27534430,-7192145,-22351378,12961482 },
+ },
+ {
+  { -24492060,-9570771,10368194,11582341,-23397293,-2245287,16533930,8206996,-30194652,-5159638 },
+  { -11121496,-3382234,2307366,6362031,-135455,8868177,-16835630,7031275,7589640,8945490 },
+  { -32152748,8917967,6661220,-11677616,-1192060,-15793393,7251489,-11182180,24099109,-14456170 },
+ },
+ {
+  { 5019558,-7907470,4244127,-14714356,-26933272,6453165,-19118182,-13289025,-6231896,-10280736 },
+  { 10853594,10721687,26480089,5861829,-22995819,1972175,-1866647,-10557898,-3363451,-6441124 },
+  { -17002408,5906790,221599,-6563147,7828208,-13248918,24362661,-2008168,-13866408,7421392 },
+ },
+ {
+  { 8139927,-6546497,32257646,-5890546,30375719,1886181,-21175108,15441252,28826358,-4123029 },
+  { 6267086,9695052,7709135,-16603597,-32869068,-1886135,14795160,-7840124,13746021,-1742048 },
+  { 28584902,7787108,-6732942,-15050729,22846041,-7571236,-3181936,-363524,4771362,-8419958 },
+ },
+},
+{
+ {
+  { 24949256,6376279,-27466481,-8174608,-18646154,-9930606,33543569,-12141695,3569627,11342593 },
+  { 26514989,4740088,27912651,3697550,19331575,-11472339,6809886,4608608,7325975,-14801071 },
+  { -11618399,-14554430,-24321212,7655128,-1369274,5214312,-27400540,10258390,-17646694,-8186692 },
+ },
+ {
+  { 11431204,15823007,26570245,14329124,18029990,4796082,-31446179,15580664,9280358,-3973687 },
+  { -160783,-10326257,-22855316,-4304997,-20861367,-13621002,-32810901,-11181622,-15545091,4387441 },
+  { -20799378,12194512,3937617,-5805892,-27154820,9340370,-24513992,8548137,20617071,-7482001 },
+ },
+ {
+  { -938825,-3930586,-8714311,16124718,24603125,-6225393,-13775352,-11875822,24345683,10325460 },
+  { -19855277,-1568885,-22202708,8714034,14007766,6928528,16318175,-1010689,4766743,3552007 },
+  { -21751364,-16730916,1351763,-803421,-4009670,3950935,3217514,14481909,10988822,-3994762 },
+ },
+ {
+  { 15564307,-14311570,3101243,5684148,30446780,-8051356,12677127,-6505343,-8295852,13296005 },
+  { -9442290,6624296,-30298964,-11913677,-4670981,-2057379,31521204,9614054,-30000824,12074674 },
+  { 4771191,-135239,14290749,-13089852,27992298,14998318,-1413936,-1556716,29832613,-16391035 },
+ },
+ {
+  { 7064884,-7541174,-19161962,-5067537,-18891269,-2912736,25825242,5293297,-27122660,13101590 },
+  { -2298563,2439670,-7466610,1719965,-27267541,-16328445,32512469,-5317593,-30356070,-4190957 },
+  { -30006540,10162316,-33180176,3981723,-16482138,-13070044,14413974,9515896,19568978,9628812 },
+ },
+ {
+  { 33053803,199357,15894591,1583059,27380243,-4580435,-17838894,-6106839,-6291786,3437740 },
+  { -18978877,3884493,19469877,12726490,15913552,13614290,-22961733,70104,7463304,4176122 },
+  { -27124001,10659917,11482427,-16070381,12771467,-6635117,-32719404,-5322751,24216882,5944158 },
+ },
+ {
+  { 8894125,7450974,-2664149,-9765752,-28080517,-12389115,19345746,14680796,11632993,5847885 },
+  { 26942781,-2315317,9129564,-4906607,26024105,11769399,-11518837,6367194,-9727230,4782140 },
+  { 19916461,-4828410,-22910704,-11414391,25606324,-5972441,33253853,8220911,6358847,-1873857 },
+ },
+ {
+  { 801428,-2081702,16569428,11065167,29875704,96627,7908388,-4480480,-13538503,1387155 },
+  { 19646058,5720633,-11416706,12814209,11607948,12749789,14147075,15156355,-21866831,11835260 },
+  { 19299512,1155910,28703737,14890794,2925026,7269399,26121523,15467869,-26560550,5052483 },
+ },
+},
+{
+ {
+  { -3017432,10058206,1980837,3964243,22160966,12322533,-6431123,-12618185,12228557,-7003677 },
+  { 32944382,14922211,-22844894,5188528,21913450,-8719943,4001465,13238564,-6114803,8653815 },
+  { 22865569,-4652735,27603668,-12545395,14348958,8234005,24808405,5719875,28483275,2841751 },
+ },
+ {
+  { -16420968,-1113305,-327719,-12107856,21886282,-15552774,-1887966,-315658,19932058,-12739203 },
+  { -11656086,10087521,-8864888,-5536143,-19278573,-3055912,3999228,13239134,-4777469,-13910208 },
+  { 1382174,-11694719,17266790,9194690,-13324356,9720081,20403944,11284705,-14013818,3093230 },
+ },
+ {
+  { 16650921,-11037932,-1064178,1570629,-8329746,7352753,-302424,16271225,-24049421,-6691850 },
+  { -21911077,-5927941,-4611316,-5560156,-31744103,-10785293,24123614,15193618,-21652117,-16739389 },
+  { -9935934,-4289447,-25279823,4372842,2087473,10399484,31870908,14690798,17361620,11864968 },
+ },
+ {
+  { -11307610,6210372,13206574,5806320,-29017692,-13967200,-12331205,-7486601,-25578460,-16240689 },
+  { 14668462,-12270235,26039039,15305210,25515617,4542480,10453892,6577524,9145645,-6443880 },
+  { 5974874,3053895,-9433049,-10385191,-31865124,3225009,-7972642,3936128,-5652273,-3050304 },
+ },
+ {
+  { 30625386,-4729400,-25555961,-12792866,-20484575,7695099,17097188,-16303496,-27999779,1803632 },
+  { -3553091,9865099,-5228566,4272701,-5673832,-16689700,14911344,12196514,-21405489,7047412 },
+  { 20093277,9920966,-11138194,-5343857,13161587,12044805,-32856851,4124601,-32343828,-10257566 },
+ },
+ {
+  { -20788824,14084654,-13531713,7842147,19119038,-13822605,4752377,-8714640,-21679658,2288038 },
+  { -26819236,-3283715,29965059,3039786,-14473765,2540457,29457502,14625692,-24819617,12570232 },
+  { -1063558,-11551823,16920318,12494842,1278292,-5869109,-21159943,-3498680,-11974704,4724943 },
+ },
+ {
+  { 17960970,-11775534,-4140968,-9702530,-8876562,-1410617,-12907383,-8659932,-29576300,1903856 },
+  { 23134274,-14279132,-10681997,-1611936,20684485,15770816,-12989750,3190296,26955097,14109738 },
+  { 15308788,5320727,-30113809,-14318877,22902008,7767164,29425325,-11277562,31960942,11934971 },
+ },
+ {
+  { -27395711,8435796,4109644,12222639,-24627868,14818669,20638173,4875028,10491392,1379718 },
+  { -13159415,9197841,3875503,-8936108,-1383712,-5879801,33518459,16176658,21432314,12180697 },
+  { -11787308,11500838,13787581,-13832590,-22430679,10140205,1465425,12689540,-10301319,-13872883 },
+ },
+},
+{
+ {
+  { 5414091,-15386041,-21007664,9643570,12834970,1186149,-2622916,-1342231,26128231,6032912 },
+  { -26337395,-13766162,32496025,-13653919,17847801,-12669156,3604025,8316894,-25875034,-10437358 },
+  { 3296484,6223048,24680646,-12246460,-23052020,5903205,-8862297,-4639164,12376617,3188849 },
+ },
+ {
+  { 29190488,-14659046,27549113,-1183516,3520066,-10697301,32049515,-7309113,-16109234,-9852307 },
+  { -14744486,-9309156,735818,-598978,-20407687,-5057904,25246078,-15795669,18640741,-960977 },
+  { -6928835,-16430795,10361374,5642961,4910474,12345252,-31638386,-494430,10530747,1053335 },
+ },
+ {
+  { -29265967,-14186805,-13538216,-12117373,-19457059,-10655384,-31462369,-2948985,24018831,15026644 },
+  { -22592535,-3145277,-2289276,5953843,-13440189,9425631,25310643,13003497,-2314791,-15145616 },
+  { -27419985,-603321,-8043984,-1669117,-26092265,13987819,-27297622,187899,-23166419,-2531735 },
+ },
+ {
+  { -21744398,-13810475,1844840,5021428,-10434399,-15911473,9716667,16266922,-5070217,726099 },
+  { 29370922,-6053998,7334071,-15342259,9385287,2247707,-13661962,-4839461,30007388,-15823341 },
+  { -936379,16086691,23751945,-543318,-1167538,-5189036,9137109,730663,9835848,4555336 },
+ },
+ {
+  { -23376435,1410446,-22253753,-12899614,30867635,15826977,17693930,544696,-11985298,12422646 },
+  { 31117226,-12215734,-13502838,6561947,-9876867,-12757670,-5118685,-4096706,29120153,13924425 },
+  { -17400879,-14233209,19675799,-2734756,-11006962,-5858820,-9383939,-11317700,7240931,-237388 },
+ },
+ {
+  { -31361739,-11346780,-15007447,-5856218,-22453340,-12152771,1222336,4389483,3293637,-15551743 },
+  { -16684801,-14444245,11038544,11054958,-13801175,-3338533,-24319580,7733547,12796905,-6335822 },
+  { -8759414,-10817836,-25418864,10783769,-30615557,-9746811,-28253339,3647836,3222231,-11160462 },
+ },
+ {
+  { 18606113,1693100,-25448386,-15170272,4112353,10045021,23603893,-2048234,-7550776,2484985 },
+  { 9255317,-3131197,-12156162,-1004256,13098013,-9214866,16377220,-2102812,-19802075,-3034702 },
+  { -22729289,7496160,-5742199,11329249,19991973,-3347502,-31718148,9936966,-30097688,-10618797 },
+ },
+ {
+  { 21878590,-5001297,4338336,13643897,-3036865,13160960,19708896,5415497,-7360503,-4109293 },
+  { 27736861,10103576,12500508,8502413,-3413016,-9633558,10436918,-1550276,-23659143,-8132100 },
+  { 19492550,-12104365,-29681976,-852630,-3208171,12403437,30066266,8367329,13243957,8709688 },
+ },
+},
+{
+ {
+  { 12015105,2801261,28198131,10151021,24818120,-4743133,-11194191,-5645734,5150968,7274186 },
+  { 2831366,-12492146,1478975,6122054,23825128,-12733586,31097299,6083058,31021603,-9793610 },
+  { -2529932,-2229646,445613,10720828,-13849527,-11505937,-23507731,16354465,15067285,-14147707 },
+ },
+ {
+  { 7840942,14037873,-33364863,15934016,-728213,-3642706,21403988,1057586,-19379462,-12403220 },
+  { 915865,-16469274,15608285,-8789130,-24357026,6060030,-17371319,8410997,-7220461,16527025 },
+  { 32922597,-556987,20336074,-16184568,10903705,-5384487,16957574,52992,23834301,6588044 },
+ },
+ {
+  { 32752030,11232950,3381995,-8714866,22652988,-10744103,17159699,16689107,-20314580,-1305992 },
+  { -4689649,9166776,-25710296,-10847306,11576752,12733943,7924251,-2752281,1976123,-7249027 },
+  { 21251222,16309901,-2983015,-6783122,30810597,12967303,156041,-3371252,12331345,-8237197 },
+ },
+ {
+  { 8651614,-4477032,-16085636,-4996994,13002507,2950805,29054427,-5106970,10008136,-4667901 },
+  { 31486080,15114593,-14261250,12951354,14369431,-7387845,16347321,-13662089,8684155,-10532952 },
+  { 19443825,11385320,24468943,-9659068,-23919258,2187569,-26263207,-6086921,31316348,14219878 },
+ },
+ {
+  { -28594490,1193785,32245219,11392485,31092169,15722801,27146014,6992409,29126555,9207390 },
+  { 32382935,1110093,18477781,11028262,-27411763,-7548111,-4980517,10843782,-7957600,-14435730 },
+  { 2814918,7836403,27519878,-7868156,-20894015,-11553689,-21494559,8550130,28346258,1994730 },
+ },
+ {
+  { -19578299,8085545,-14000519,-3948622,2785838,-16231307,-19516951,7174894,22628102,8115180 },
+  { -30405132,955511,-11133838,-15078069,-32447087,-13278079,-25651578,3317160,-9943017,930272 },
+  { -15303681,-6833769,28856490,1357446,23421993,1057177,24091212,-1388970,-22765376,-10650715 },
+ },
+ {
+  { -22751231,-5303997,-12907607,-12768866,-15811511,-7797053,-14839018,-16554220,-1867018,8398970 },
+  { -31969310,2106403,-4736360,1362501,12813763,16200670,22981545,-6291273,18009408,-15772772 },
+  { -17220923,-9545221,-27784654,14166835,29815394,7444469,29551787,-3727419,19288549,1325865 },
+ },
+ {
+  { 15100157,-15835752,-23923978,-1005098,-26450192,15509408,12376730,-3479146,33166107,-8042750 },
+  { 20909231,13023121,-9209752,16251778,-5778415,-8094914,12412151,10018715,2213263,-13878373 },
+  { 32529814,-11074689,30361439,-16689753,-9135940,1513226,22922121,6382134,-5766928,8371348 },
+ },
+},
+{
+ {
+  { 9923462,11271500,12616794,3544722,-29998368,-1721626,12891687,-8193132,-26442943,10486144 },
+  { -22597207,-7012665,8587003,-8257861,4084309,-12970062,361726,2610596,-23921530,-11455195 },
+  { 5408411,-1136691,-4969122,10561668,24145918,14240566,31319731,-4235541,19985175,-3436086 },
+ },
+ {
+  { -13994457,16616821,14549246,3341099,32155958,13648976,-17577068,8849297,65030,8370684 },
+  { -8320926,-12049626,31204563,5839400,-20627288,-1057277,-19442942,6922164,12743482,-9800518 },
+  { -2361371,12678785,28815050,4759974,-23893047,4884717,23783145,11038569,18800704,255233 },
+ },
+ {
+  { -5269658,-1773886,13957886,7990715,23132995,728773,13393847,9066957,19258688,-14753793 },
+  { -2936654,-10827535,-10432089,14516793,-3640786,4372541,-31934921,2209390,-1524053,2055794 },
+  { 580882,16705327,5468415,-2683018,-30926419,-14696000,-7203346,-8994389,-30021019,7394435 },
+ },
+ {
+  { 23838809,1822728,-15738443,15242727,8318092,-3733104,-21672180,-3492205,-4821741,14799921 },
+  { 13345610,9759151,3371034,-16137791,16353039,8577942,31129804,13496856,-9056018,7402518 },
+  { 2286874,-4435931,-20042458,-2008336,-13696227,5038122,11006906,-15760352,8205061,1607563 },
+ },
+ {
+  { 14414086,-8002132,3331830,-3208217,22249151,-5594188,18364661,-2906958,30019587,-9029278 },
+  { -27688051,1585953,-10775053,931069,-29120221,-11002319,-14410829,12029093,9944378,8024 },
+  { 4368715,-3709630,29874200,-15022983,-20230386,-11410704,-16114594,-999085,-8142388,5640030 },
+ },
+ {
+  { 10299610,13746483,11661824,16234854,7630238,5998374,9809887,-16694564,15219798,-14327783 },
+  { 27425505,-5719081,3055006,10660664,23458024,595578,-15398605,-1173195,-18342183,9742717 },
+  { 6744077,2427284,26042789,2720740,-847906,1118974,32324614,7406442,12420155,1994844 },
+ },
+ {
+  { 14012521,-5024720,-18384453,-9578469,-26485342,-3936439,-13033478,-10909803,24319929,-6446333 },
+  { 16412690,-4507367,10772641,15929391,-17068788,-4658621,10555945,-10484049,-30102368,-4739048 },
+  { 22397382,-7767684,-9293161,-12792868,17166287,-9755136,-27333065,6199366,21880021,-12250760 },
+ },
+ {
+  { -4283307,5368523,-31117018,8163389,-30323063,3209128,16557151,8890729,8840445,4957760 },
+  { -15447727,709327,-6919446,-10870178,-29777922,6522332,-21720181,12130072,-14796503,5005757 },
+  { -2114751,-14308128,23019042,15765735,-25269683,6002752,10183197,-13239326,-16395286,-2176112 },
+ },
+},
+{
+ {
+  { -19025756,1632005,13466291,-7995100,-23640451,16573537,-32013908,-3057104,22208662,2000468 },
+  { 3065073,-1412761,-25598674,-361432,-17683065,-5703415,-8164212,11248527,-3691214,-7414184 },
+  { 10379208,-6045554,8877319,1473647,-29291284,-12507580,16690915,2553332,-3132688,16400289 },
+ },
+ {
+  { 15716668,1254266,-18472690,7446274,-8448918,6344164,-22097271,-7285580,26894937,9132066 },
+  { 24158887,12938817,11085297,-8177598,-28063478,-4457083,-30576463,64452,-6817084,-2692882 },
+  { 13488534,7794716,22236231,5989356,25426474,-12578208,2350710,-3418511,-4688006,2364226 },
+ },
+ {
+  { 16335052,9132434,25640582,6678888,1725628,8517937,-11807024,-11697457,15445875,-7798101 },
+  { 29004207,-7867081,28661402,-640412,-12794003,-7943086,31863255,-4135540,-278050,-15759279 },
+  { -6122061,-14866665,-28614905,14569919,-10857999,-3591829,10343412,-6976290,-29828287,-10815811 },
+ },
+ {
+  { 27081650,3463984,14099042,-4517604,1616303,-6205604,29542636,15372179,17293797,960709 },
+  { 20263915,11434237,-5765435,11236810,13505955,-10857102,-16111345,6493122,-19384511,7639714 },
+  { -2830798,-14839232,25403038,-8215196,-8317012,-16173699,18006287,-16043750,29994677,-15808121 },
+ },
+ {
+  { 9769828,5202651,-24157398,-13631392,-28051003,-11561624,-24613141,-13860782,-31184575,709464 },
+  { 12286395,13076066,-21775189,-1176622,-25003198,4057652,-32018128,-8890874,16102007,13205847 },
+  { 13733362,5599946,10557076,3195751,-5557991,8536970,-25540170,8525972,10151379,10394400 },
+ },
+ {
+  { 4024660,-16137551,22436262,12276534,-9099015,-2686099,19698229,11743039,-33302334,8934414 },
+  { -15879800,-4525240,-8580747,-2934061,14634845,-698278,-9449077,3137094,-11536886,11721158 },
+  { 17555939,-5013938,8268606,2331751,-22738815,9761013,9319229,8835153,-9205489,-1280045 },
+ },
+ {
+  { -461409,-7830014,20614118,16688288,-7514766,-4807119,22300304,505429,6108462,-6183415 },
+  { -5070281,12367917,-30663534,3234473,32617080,-8422642,29880583,-13483331,-26898490,-7867459 },
+  { -31975283,5726539,26934134,10237677,-3173717,-605053,24199304,3795095,7592688,-14992079 },
+ },
+ {
+  { 21594432,-14964228,17466408,-4077222,32537084,2739898,6407723,12018833,-28256052,4298412 },
+  { -20650503,-11961496,-27236275,570498,3767144,-1717540,13891942,-1569194,13717174,10805743 },
+  { -14676630,-15644296,15287174,11927123,24177847,-8175568,-796431,14860609,-26938930,-5863836 },
+ },
+},
+{
+ {
+  { 12962541,5311799,-10060768,11658280,18855286,-7954201,13286263,-12808704,-4381056,9882022 },
+  { 18512079,11319350,-20123124,15090309,18818594,5271736,-22727904,3666879,-23967430,-3299429 },
+  { -6789020,-3146043,16192429,13241070,15898607,-14206114,-10084880,-6661110,-2403099,5276065 },
+ },
+ {
+  { 30169808,-5317648,26306206,-11750859,27814964,7069267,7152851,3684982,1449224,13082861 },
+  { 10342826,3098505,2119311,193222,25702612,12233820,23697382,15056736,-21016438,-8202000 },
+  { -33150110,3261608,22745853,7948688,19370557,-15177665,-26171976,6482814,-10300080,-11060101 },
+ },
+ {
+  { 32869458,-5408545,25609743,15678670,-10687769,-15471071,26112421,2521008,-22664288,6904815 },
+  { 29506923,4457497,3377935,-9796444,-30510046,12935080,1561737,3841096,-29003639,-6657642 },
+  { 10340844,-6630377,-18656632,-2278430,12621151,-13339055,30878497,-11824370,-25584551,5181966 },
+ },
+ {
+  { 25940115,-12658025,17324188,-10307374,-8671468,15029094,24396252,-16450922,-2322852,-12388574 },
+  { -21765684,9916823,-1300409,4079498,-1028346,11909559,1782390,12641087,20603771,-6561742 },
+  { -18882287,-11673380,24849422,11501709,13161720,-4768874,1925523,11914390,4662781,7820689 },
+ },
+ {
+  { 12241050,-425982,8132691,9393934,32846760,-1599620,29749456,12172924,16136752,15264020 },
+  { -10349955,-14680563,-8211979,2330220,-17662549,-14545780,10658213,6671822,19012087,3772772 },
+  { 3753511,-3421066,10617074,2028709,14841030,-6721664,28718732,-15762884,20527771,12988982 },
+ },
+ {
+  { -14822485,-5797269,-3707987,12689773,-898983,-10914866,-24183046,-10564943,3299665,-12424953 },
+  { -16777703,-15253301,-9642417,4978983,3308785,8755439,6943197,6461331,-25583147,8991218 },
+  { -17226263,1816362,-1673288,-6086439,31783888,-8175991,-32948145,7417950,-30242287,1507265 },
+ },
+ {
+  { 29692663,6829891,-10498800,4334896,20945975,-11906496,-28887608,8209391,14606362,-10647073 },
+  { -3481570,8707081,32188102,5672294,22096700,1711240,-33020695,9761487,4170404,-2085325 },
+  { -11587470,14855945,-4127778,-1531857,-26649089,15084046,22186522,16002000,-14276837,-8400798 },
+ },
+ {
+  { -4811456,13761029,-31703877,-2483919,-3312471,7869047,-7113572,-9620092,13240845,10965870 },
+  { -7742563,-8256762,-14768334,-13656260,-23232383,12387166,4498947,14147411,29514390,4302863 },
+  { -13413405,-12407859,20757302,-13801832,14785143,8976368,-5061276,-2144373,17846988,-13971927 },
+ },
+},
+{
+ {
+  { -2244452,-754728,-4597030,-1066309,-6247172,1455299,-21647728,-9214789,-5222701,12650267 },
+  { -9906797,-16070310,21134160,12198166,-27064575,708126,387813,13770293,-19134326,10958663 },
+  { 22470984,12369526,23446014,-5441109,-21520802,-9698723,-11772496,-11574455,-25083830,4271862 },
+ },
+ {
+  { -25169565,-10053642,-19909332,15361595,-5984358,2159192,75375,-4278529,-32526221,8469673 },
+  { 15854970,4148314,-8893890,7259002,11666551,13824734,-30531198,2697372,24154791,-9460943 },
+  { 15446137,-15806644,29759747,14019369,30811221,-9610191,-31582008,12840104,24913809,9815020 },
+ },
+ {
+  { -4709286,-5614269,-31841498,-12288893,-14443537,10799414,-9103676,13438769,18735128,9466238 },
+  { 11933045,9281483,5081055,-5183824,-2628162,-4905629,-7727821,-10896103,-22728655,16199064 },
+  { 14576810,379472,-26786533,-8317236,-29426508,-10812974,-102766,1876699,30801119,2164795 },
+ },
+ {
+  { 15995086,3199873,13672555,13712240,-19378835,-4647646,-13081610,-15496269,-13492807,1268052 },
+  { -10290614,-3659039,-3286592,10948818,23037027,3794475,-3470338,-12600221,-17055369,3565904 },
+  { 29210088,-9419337,-5919792,-4952785,10834811,-13327726,-16512102,-10820713,-27162222,-14030531 },
+ },
+ {
+  { -13161890,15508588,16663704,-8156150,-28349942,9019123,-29183421,-3769423,2244111,-14001979 },
+  { -5152875,-3800936,-9306475,-6071583,16243069,14684434,-25673088,-16180800,13491506,4641841 },
+  { 10813417,643330,-19188515,-728916,30292062,-16600078,27548447,-7721242,14476989,-12767431 },
+ },
+ {
+  { 10292079,9984945,6481436,8279905,-7251514,7032743,27282937,-1644259,-27912810,12651324 },
+  { -31185513,-813383,22271204,11835308,10201545,15351028,17099662,3988035,21721536,-3148940 },
+  { 10202177,-6545839,-31373232,-9574638,-32150642,-8119683,-12906320,3852694,13216206,14842320 },
+ },
+ {
+  { -15815640,-10601066,-6538952,-7258995,-6984659,-6581778,-31500847,13765824,-27434397,9900184 },
+  { 14465505,-13833331,-32133984,-14738873,-27443187,12990492,33046193,15796406,-7051866,-8040114 },
+  { 30924417,-8279620,6359016,-12816335,16508377,9071735,-25488601,15413635,9524356,-7018878 },
+ },
+ {
+  { 12274201,-13175547,32627641,-1785326,6736625,13267305,5237659,-5109483,15663516,4035784 },
+  { -2951309,8903985,17349946,601635,-16432815,-4612556,-13732739,-15889334,-22258478,4659091 },
+  { -16916263,-4952973,-30393711,-15158821,20774812,15897498,5736189,15026997,-2178256,-13455585 },
+ },
+},
+{
+ {
+  { -8858980,-2219056,28571666,-10155518,-474467,-10105698,-3801496,278095,23440562,-290208 },
+  { 10226241,-5928702,15139956,120818,-14867693,5218603,32937275,11551483,-16571960,-7442864 },
+  { 17932739,-12437276,-24039557,10749060,11316803,7535897,22503767,5561594,-3646624,3898661 },
+ },
+ {
+  { 7749907,-969567,-16339731,-16464,-25018111,15122143,-1573531,7152530,21831162,1245233 },
+  { 26958459,-14658026,4314586,8346991,-5677764,11960072,-32589295,-620035,-30402091,-16716212 },
+  { -12165896,9166947,33491384,13673479,29787085,13096535,6280834,14587357,-22338025,13987525 },
+ },
+ {
+  { -24349909,7778775,21116000,15572597,-4833266,-5357778,-4300898,-5124639,-7469781,-2858068 },
+  { 9681908,-6737123,-31951644,13591838,-6883821,386950,31622781,6439245,-14581012,4091397 },
+  { -8426427,1470727,-28109679,-1596990,3978627,-5123623,-19622683,12092163,29077877,-14741988 },
+ },
+ {
+  { 5269168,-6859726,-13230211,-8020715,25932563,1763552,-5606110,-5505881,-20017847,2357889 },
+  { 32264008,-15407652,-5387735,-1160093,-2091322,-3946900,23104804,-12869908,5727338,189038 },
+  { 14609123,-8954470,-6000566,-16622781,-14577387,-7743898,-26745169,10942115,-25888931,-14884697 },
+ },
+ {
+  { 20513500,5557931,-15604613,7829531,26413943,-2019404,-21378968,7471781,13913677,-5137875 },
+  { -25574376,11967826,29233242,12948236,-6754465,4713227,-8940970,14059180,12878652,8511905 },
+  { -25656801,3393631,-2955415,-7075526,-2250709,9366908,-30223418,6812974,5568676,-3127656 },
+ },
+ {
+  { 11630004,12144454,2116339,13606037,27378885,15676917,-17408753,-13504373,-14395196,8070818 },
+  { 27117696,-10007378,-31282771,-5570088,1127282,12772488,-29845906,10483306,-11552749,-1028714 },
+  { 10637467,-5688064,5674781,1072708,-26343588,-6982302,-1683975,9177853,-27493162,15431203 },
+ },
+ {
+  { 20525145,10892566,-12742472,12779443,-29493034,16150075,-28240519,14943142,-15056790,-7935931 },
+  { -30024462,5626926,-551567,-9981087,753598,11981191,25244767,-3239766,-3356550,9594024 },
+  { -23752644,2636870,-5163910,-10103818,585134,7877383,11345683,-6492290,13352335,-10977084 },
+ },
+ {
+  { -1931799,-5407458,3304649,-12884869,17015806,-4877091,-29783850,-7752482,-13215537,-319204 },
+  { 20239939,6607058,6203985,3483793,-18386976,-779229,-20723742,15077870,-22750759,14523817 },
+  { 27406042,-6041657,27423596,-4497394,4996214,10002360,-28842031,-4545494,-30172742,-4805667 },
+ },
+},
+{
+ {
+  { 11374242,12660715,17861383,-12540833,10935568,1099227,-13886076,-9091740,-27727044,11358504 },
+  { -12730809,10311867,1510375,10778093,-2119455,-9145702,32676003,11149336,-26123651,4985768 },
+  { -19096303,341147,-6197485,-239033,15756973,-8796662,-983043,13794114,-19414307,-15621255 },
+ },
+ {
+  { 6490081,11940286,25495923,-7726360,8668373,-8751316,3367603,6970005,-1691065,-9004790 },
+  { 1656497,13457317,15370807,6364910,13605745,8362338,-19174622,-5475723,-16796596,-5031438 },
+  { -22273315,-13524424,-64685,-4334223,-18605636,-10921968,-20571065,-7007978,-99853,-10237333 },
+ },
+ {
+  { 17747465,10039260,19368299,-4050591,-20630635,-16041286,31992683,-15857976,-29260363,-5511971 },
+  { 31932027,-4986141,-19612382,16366580,22023614,88450,11371999,-3744247,4882242,-10626905 },
+  { 29796507,37186,19818052,10115756,-11829032,3352736,18551198,3272828,-5190932,-4162409 },
+ },
+ {
+  { 12501286,4044383,-8612957,-13392385,-32430052,5136599,-19230378,-3529697,330070,-3659409 },
+  { 6384877,2899513,17807477,7663917,-2358888,12363165,25366522,-8573892,-271295,12071499 },
+  { -8365515,-4042521,25133448,-4517355,-6211027,2265927,-32769618,1936675,-5159697,3829363 },
+ },
+ {
+  { 28425966,-5835433,-577090,-4697198,-14217555,6870930,7921550,-6567787,26333140,14267664 },
+  { -11067219,11871231,27385719,-10559544,-4585914,-11189312,10004786,-8709488,-21761224,8930324 },
+  { -21197785,-16396035,25654216,-1725397,12282012,11008919,1541940,4757911,-26491501,-16408940 },
+ },
+ {
+  { 13537262,-7759490,-20604840,10961927,-5922820,-13218065,-13156584,6217254,-15943699,13814990 },
+  { -17422573,15157790,18705543,29619,24409717,-260476,27361681,9257833,-1956526,-1776914 },
+  { -25045300,-10191966,15366585,15166509,-13105086,8423556,-29171540,12361135,-18685978,4578290 },
+ },
+ {
+  { 24579768,3711570,1342322,-11180126,-27005135,14124956,-22544529,14074919,21964432,8235257 },
+  { -6528613,-2411497,9442966,-5925588,12025640,-1487420,-2981514,-1669206,13006806,2355433 },
+  { -16304899,-13605259,-6632427,-5142349,16974359,-10911083,27202044,1719366,1141648,-12796236 },
+ },
+ {
+  { -12863944,-13219986,-8318266,-11018091,-6810145,-4843894,13475066,-3133972,32674895,13715045 },
+  { 11423335,-5468059,32344216,8962751,24989809,9241752,-13265253,16086212,-28740881,-15642093 },
+  { -1409668,12530728,-6368726,10847387,19531186,-14132160,-11709148,7791794,-27245943,4383347 },
+ },
+},
+{
+ {
+  { -28970898,5271447,-1266009,-9736989,-12455236,16732599,-4862407,-4906449,27193557,6245191 },
+  { -15193956,5362278,-1783893,2695834,4960227,12840725,23061898,3260492,22510453,8577507 },
+  { -12632451,11257346,-32692994,13548177,-721004,10879011,31168030,13952092,-29571492,-3635906 },
+ },
+ {
+  { 3877321,-9572739,32416692,5405324,-11004407,-13656635,3759769,11935320,5611860,8164018 },
+  { -16275802,14667797,15906460,12155291,-22111149,-9039718,32003002,-8832289,5773085,-8422109 },
+  { -23788118,-8254300,1950875,8937633,18686727,16459170,-905725,12376320,31632953,190926 },
+ },
+ {
+  { -24593607,-16138885,-8423991,13378746,14162407,6901328,-8288749,4508564,-25341555,-3627528 },
+  { 8884438,-5884009,6023974,10104341,-6881569,-4941533,18722941,-14786005,-1672488,827625 },
+  { -32720583,-16289296,-32503547,7101210,13354605,2659080,-1800575,-14108036,-24878478,1541286 },
+ },
+ {
+  { 2901347,-1117687,3880376,-10059388,-17620940,-3612781,-21802117,-3567481,20456845,-1885033 },
+  { 27019610,12299467,-13658288,-1603234,-12861660,-4861471,-19540150,-5016058,29439641,15138866 },
+  { 21536104,-6626420,-32447818,-10690208,-22408077,5175814,-5420040,-16361163,7779328,109896 },
+ },
+ {
+  { 30279744,14648750,-8044871,6425558,13639621,-743509,28698390,12180118,23177719,-554075 },
+  { 26572847,3405927,-31701700,12890905,-19265668,5335866,-6493768,2378492,4439158,-13279347 },
+  { -22716706,3489070,-9225266,-332753,18875722,-1140095,14819434,-12731527,-17717757,-5461437 },
+ },
+ {
+  { -5056483,16566551,15953661,3767752,-10436499,15627060,-820954,2177225,8550082,-15114165 },
+  { -18473302,16596775,-381660,15663611,22860960,15585581,-27844109,-3582739,-23260460,-8428588 },
+  { -32480551,15707275,-8205912,-5652081,29464558,2713815,-22725137,15860482,-21902570,1494193 },
+ },
+ {
+  { -19562091,-14087393,-25583872,-9299552,13127842,759709,21923482,16529112,8742704,12967017 },
+  { -28464899,1553205,32536856,-10473729,-24691605,-406174,-8914625,-2933896,-29903758,15553883 },
+  { 21877909,3230008,9881174,10539357,-4797115,2841332,11543572,14513274,19375923,-12647961 },
+ },
+ {
+  { 8832269,-14495485,13253511,5137575,5037871,4078777,24880818,-6222716,2862653,9455043 },
+  { 29306751,5123106,20245049,-14149889,9592566,8447059,-2077124,-2990080,15511449,4789663 },
+  { -20679756,7004547,8824831,-9434977,-4045704,-3750736,-5754762,108893,23513200,16652362 },
+ },
+},
+{
+ {
+  { -33256173,4144782,-4476029,-6579123,10770039,-7155542,-6650416,-12936300,-18319198,10212860 },
+  { 2756081,8598110,7383731,-6859892,22312759,-1105012,21179801,2600940,-9988298,-12506466 },
+  { -24645692,13317462,-30449259,-15653928,21365574,-10869657,11344424,864440,-2499677,-16710063 },
+ },
+ {
+  { -26432803,6148329,-17184412,-14474154,18782929,-275997,-22561534,211300,2719757,4940997 },
+  { -1323882,3911313,-6948744,14759765,-30027150,7851207,21690126,8518463,26699843,5276295 },
+  { -13149873,-6429067,9396249,365013,24703301,-10488939,1321586,149635,-15452774,7159369 },
+ },
+ {
+  { 9987780,-3404759,17507962,9505530,9731535,-2165514,22356009,8312176,22477218,-8403385 },
+  { 18155857,-16504990,19744716,9006923,15154154,-10538976,24256460,-4864995,-22548173,9334109 },
+  { 2986088,-4911893,10776628,-3473844,10620590,-7083203,-21413845,14253545,-22587149,536906 },
+ },
+ {
+  { 4377756,8115836,24567078,15495314,11625074,13064599,7390551,10589625,10838060,-15420424 },
+  { -19342404,867880,9277171,-3218459,-14431572,-1986443,19295826,-15796950,6378260,699185 },
+  { 7895026,4057113,-7081772,-13077756,-17886831,-323126,-716039,15693155,-5045064,-13373962 },
+ },
+ {
+  { -7737563,-5869402,-14566319,-7406919,11385654,13201616,31730678,-10962840,-3918636,-9669325 },
+  { 10188286,-15770834,-7336361,13427543,22223443,14896287,30743455,7116568,-21786507,5427593 },
+  { 696102,13206899,27047647,-10632082,15285305,-9853179,10798490,-4578720,19236243,12477404 },
+ },
+ {
+  { -11229439,11243796,-17054270,-8040865,-788228,-8167967,-3897669,11180504,-23169516,7733644 },
+  { 17800790,-14036179,-27000429,-11766671,23887827,3149671,23466177,-10538171,10322027,15313801 },
+  { 26246234,11968874,32263343,-5468728,6830755,-13323031,-15794704,-101982,-24449242,10890804 },
+ },
+ {
+  { -31365647,10271363,-12660625,-6267268,16690207,-13062544,-14982212,16484931,25180797,-5334884 },
+  { -586574,10376444,-32586414,-11286356,19801893,10997610,2276632,9482883,316878,13820577 },
+  { -9882808,-4510367,-2115506,16457136,-11100081,11674996,30756178,-7515054,30696930,-3712849 },
+ },
+ {
+  { 32988917,-9603412,12499366,7910787,-10617257,-11931514,-7342816,-9985397,-32349517,7392473 },
+  { -8855661,15927861,9866406,-3649411,-2396914,-16655781,-30409476,-9134995,25112947,-2926644 },
+  { -2504044,-436966,25621774,-5678772,15085042,-5479877,-24884878,-13526194,5537438,-13914319 },
+ },
+},
+{
+ {
+  { -11225584,2320285,-9584280,10149187,-33444663,5808648,-14876251,-1729667,31234590,6090599 },
+  { -9633316,116426,26083934,2897444,-6364437,-2688086,609721,15878753,-6970405,-9034768 },
+  { -27757857,247744,-15194774,-9002551,23288161,-10011936,-23869595,6503646,20650474,1804084 },
+ },
+ {
+  { -27589786,15456424,8972517,8469608,15640622,4439847,3121995,-10329713,27842616,-202328 },
+  { -15306973,2839644,22530074,10026331,4602058,5048462,28248656,5031932,-11375082,12714369 },
+  { 20807691,-7270825,29286141,11421711,-27876523,-13868230,-21227475,1035546,-19733229,12796920 },
+ },
+ {
+  { 12076899,-14301286,-8785001,-11848922,-25012791,16400684,-17591495,-12899438,3480665,-15182815 },
+  { -32361549,5457597,28548107,7833186,7303070,-11953545,-24363064,-15921875,-33374054,2771025 },
+  { -21389266,421932,26597266,6860826,22486084,-6737172,-17137485,-4210226,-24552282,15673397 },
+ },
+ {
+  { -20184622,2338216,19788685,-9620956,-4001265,-8740893,-20271184,4733254,3727144,-12934448 },
+  { 6120119,814863,-11794402,-622716,6812205,-15747771,2019594,7975683,31123697,-10958981 },
+  { 30069250,-11435332,30434654,2958439,18399564,-976289,12296869,9204260,-16432438,9648165 },
+ },
+ {
+  { 32705432,-1550977,30705658,7451065,-11805606,9631813,3305266,5248604,-26008332,-11377501 },
+  { 17219865,2375039,-31570947,-5575615,-19459679,9219903,294711,15298639,2662509,-16297073 },
+  { -1172927,-7558695,-4366770,-4287744,-21346413,-8434326,32087529,-1222777,32247248,-14389861 },
+ },
+ {
+  { 14312628,1221556,17395390,-8700143,-4945741,-8684635,-28197744,-9637817,-16027623,-13378845 },
+  { -1428825,-9678990,-9235681,6549687,-7383069,-468664,23046502,9803137,17597934,2346211 },
+  { 18510800,15337574,26171504,981392,-22241552,7827556,-23491134,-11323352,3059833,-11782870 },
+ },
+ {
+  { 10141598,6082907,17829293,-1947643,9830092,13613136,-25556636,-5544586,-33502212,3592096 },
+  { 33114168,-15889352,-26525686,-13343397,33076705,8716171,1151462,1521897,-982665,-6837803 },
+  { -32939165,-4255815,23947181,-324178,-33072974,-12305637,-16637686,3891704,26353178,693168 },
+ },
+ {
+  { 30374239,1595580,-16884039,13186931,4600344,406904,9585294,-400668,31375464,14369965 },
+  { -14370654,-7772529,1510301,6434173,-18784789,-6262728,32732230,-13108839,17901441,16011505 },
+  { 18171223,-11934626,-12500402,15197122,-11038147,-15230035,-19172240,-16046376,8764035,12309598 },
+ },
+},
+{
+ {
+  { 5975908,-5243188,-19459362,-9681747,-11541277,14015782,-23665757,1228319,17544096,-10593782 },
+  { 5811932,-1715293,3442887,-2269310,-18367348,-8359541,-18044043,-15410127,-5565381,12348900 },
+  { -31399660,11407555,25755363,6891399,-3256938,14872274,-24849353,8141295,-10632534,-585479 },
+ },
+ {
+  { -12675304,694026,-5076145,13300344,14015258,-14451394,-9698672,-11329050,30944593,1130208 },
+  { 8247766,-6710942,-26562381,-7709309,-14401939,-14648910,4652152,2488540,23550156,-271232 },
+  { 17294316,-3788438,7026748,15626851,22990044,113481,2267737,-5908146,-408818,-137719 },
+ },
+ {
+  { 16091085,-16253926,18599252,7340678,2137637,-1221657,-3364161,14550936,3260525,-7166271 },
+  { -4910104,-13332887,18550887,10864893,-16459325,-7291596,-23028869,-13204905,-12748722,2701326 },
+  { -8574695,16099415,4629974,-16340524,-20786213,-6005432,-10018363,9276971,11329923,1862132 },
+ },
+ {
+  { 14763076,-15903608,-30918270,3689867,3511892,10313526,-21951088,12219231,-9037963,-940300 },
+  { 8894987,-3446094,6150753,3013931,301220,15693451,-31981216,-2909717,-15438168,11595570 },
+  { 15214962,3537601,-26238722,-14058872,4418657,-15230761,13947276,10730794,-13489462,-4363670 },
+ },
+ {
+  { -2538306,7682793,32759013,263109,-29984731,-7955452,-22332124,-10188635,977108,699994 },
+  { -12466472,4195084,-9211532,550904,-15565337,12917920,19118110,-439841,-30534533,-14337913 },
+  { 31788461,-14507657,4799989,7372237,8808585,-14747943,9408237,-10051775,12493932,-5409317 },
+ },
+ {
+  { -25680606,5260744,-19235809,-6284470,-3695942,16566087,27218280,2607121,29375955,6024730 },
+  { 842132,-2794693,-4763381,-8722815,26332018,-12405641,11831880,6985184,-9940361,2854096 },
+  { -4847262,-7969331,2516242,-5847713,9695691,-7221186,16512645,960770,12121869,16648078 },
+ },
+ {
+  { -15218652,14667096,-13336229,2013717,30598287,-464137,-31504922,-7882064,20237806,2838411 },
+  { -19288047,4453152,15298546,-16178388,22115043,-15972604,12544294,-13470457,1068881,-12499905 },
+  { -9558883,-16518835,33238498,13506958,30505848,-1114596,-8486907,-2630053,12521378,4845654 },
+ },
+ {
+  { -28198521,10744108,-2958380,10199664,7759311,-13088600,3409348,-873400,-6482306,-12885870 },
+  { -23561822,6230156,-20382013,10655314,-24040585,-11621172,10477734,-1240216,-3113227,13974498 },
+  { 12966261,15550616,-32038948,-1615346,21025980,-629444,5642325,7188737,18895762,12629579 },
+ },
+},
+{
+ {
+  { 14741879,-14946887,22177208,-11721237,1279741,8058600,11758140,789443,32195181,3895677 },
+  { 10758205,15755439,-4509950,9243698,-4879422,6879879,-2204575,-3566119,-8982069,4429647 },
+  { -2453894,15725973,-20436342,-10410672,-5803908,-11040220,-7135870,-11642895,18047436,-15281743 },
+ },
+ {
+  { -25173001,-11307165,29759956,11776784,-22262383,-15820455,10993114,-12850837,-17620701,-9408468 },
+  { 21987233,700364,-24505048,14972008,-7774265,-5718395,32155026,2581431,-29958985,8773375 },
+  { -25568350,454463,-13211935,16126715,25240068,8594567,20656846,12017935,-7874389,-13920155 },
+ },
+ {
+  { 6028182,6263078,-31011806,-11301710,-818919,2461772,-31841174,-5468042,-1721788,-2776725 },
+  { -12278994,16624277,987579,-5922598,32908203,1248608,7719845,-4166698,28408820,6816612 },
+  { -10358094,-8237829,19549651,-12169222,22082623,16147817,20613181,13982702,-10339570,5067943 },
+ },
+ {
+  { -30505967,-3821767,12074681,13582412,-19877972,2443951,-19719286,12746132,5331210,-10105944 },
+  { 30528811,3601899,-1957090,4619785,-27361822,-15436388,24180793,-12570394,27679908,-1648928 },
+  { 9402404,-13957065,32834043,10838634,-26580150,-13237195,26653274,-8685565,22611444,-12715406 },
+ },
+ {
+  { 22190590,1118029,22736441,15130463,-30460692,-5991321,19189625,-4648942,4854859,6622139 },
+  { -8310738,-2953450,-8262579,-3388049,-10401731,-271929,13424426,-3567227,26404409,13001963 },
+  { -31241838,-15415700,-2994250,8939346,11562230,-12840670,-26064365,-11621720,-15405155,11020693 },
+ },
+ {
+  { 1866042,-7949489,-7898649,-10301010,12483315,13477547,3175636,-12424163,28761762,1406734 },
+  { -448555,-1777666,13018551,3194501,-9580420,-11161737,24760585,-4347088,25577411,-13378680 },
+  { -24290378,4759345,-690653,-1852816,2066747,10693769,-29595790,9884936,-9368926,4745410 },
+ },
+ {
+  { -9141284,6049714,-19531061,-4341411,-31260798,9944276,-15462008,-11311852,10931924,-11931931 },
+  { -16561513,14112680,-8012645,4817318,-8040464,-11414606,-22853429,10856641,-20470770,13434654 },
+  { 22759489,-10073434,-16766264,-1871422,13637442,-10168091,1765144,-12654326,28445307,-5364710 },
+ },
+ {
+  { 29875063,12493613,2795536,-3786330,1710620,15181182,-10195717,-8788675,9074234,1167180 },
+  { -26205683,11014233,-9842651,-2635485,-26908120,7532294,-18716888,-9535498,3843903,9367684 },
+  { -10969595,-6403711,9591134,9582310,11349256,108879,16235123,8601684,-139197,4242895 },
+ },
+},
+{
+ {
+  { 22092954,-13191123,-2042793,-11968512,32186753,-11517388,-6574341,2470660,-27417366,16625501 },
+  { -11057722,3042016,13770083,-9257922,584236,-544855,-7770857,2602725,-27351616,14247413 },
+  { 6314175,-10264892,-32772502,15957557,-10157730,168750,-8618807,14290061,27108877,-1180880 },
+ },
+ {
+  { -8586597,-7170966,13241782,10960156,-32991015,-13794596,33547976,-11058889,-27148451,981874 },
+  { 22833440,9293594,-32649448,-13618667,-9136966,14756819,-22928859,-13970780,-10479804,-16197962 },
+  { -7768587,3326786,-28111797,10783824,19178761,14905060,22680049,13906969,-15933690,3797899 },
+ },
+ {
+  { 21721356,-4212746,-12206123,9310182,-3882239,-13653110,23740224,-2709232,20491983,-8042152 },
+  { 9209270,-15135055,-13256557,-6167798,-731016,15289673,25947805,15286587,30997318,-6703063 },
+  { 7392032,16618386,23946583,-8039892,-13265164,-1533858,-14197445,-2321576,17649998,-250080 },
+ },
+ {
+  { -9301088,-14193827,30609526,-3049543,-25175069,-1283752,-15241566,-9525724,-2233253,7662146 },
+  { -17558673,1763594,-33114336,15908610,-30040870,-12174295,7335080,-8472199,-3174674,3440183 },
+  { -19889700,-5977008,-24111293,-9688870,10799743,-16571957,40450,-4431835,4862400,1133 },
+ },
+ {
+  { -32856209,-7873957,-5422389,14860950,-16319031,7956142,7258061,311861,-30594991,-7379421 },
+  { -3773428,-1565936,28985340,7499440,24445838,9325937,29727763,16527196,18278453,15405622 },
+  { -4381906,8508652,-19898366,-3674424,-5984453,15149970,-13313598,843523,-21875062,13626197 },
+ },
+ {
+  { 2281448,-13487055,-10915418,-2609910,1879358,16164207,-10783882,3953792,13340839,15928663 },
+  { 31727126,-7179855,-18437503,-8283652,2875793,-16390330,-25269894,-7014826,-23452306,5964753 },
+  { 4100420,-5959452,-17179337,6017714,-18705837,12227141,-26684835,11344144,2538215,-7570755 },
+ },
+ {
+  { -9433605,6123113,11159803,-2156608,30016280,14966241,-20474983,1485421,-629256,-15958862 },
+  { -26804558,4260919,11851389,9658551,-32017107,16367492,-20205425,-13191288,11659922,-11115118 },
+  { 26180396,10015009,-30844224,-8581293,5418197,9480663,2231568,-10170080,33100372,-1306171 },
+ },
+ {
+  { 15121113,-5201871,-10389905,15427821,-27509937,-15992507,21670947,4486675,-5931810,-14466380 },
+  { 16166486,-9483733,-11104130,6023908,-31926798,-1364923,2340060,-16254968,-10735770,-10039824 },
+  { 28042865,-3557089,-12126526,12259706,-3717498,-6945899,6766453,-8689599,18036436,5803270 },
+ },
+},
+{
+ {
+  { -817581,6763912,11803561,1585585,10958447,-2671165,23855391,4598332,-6159431,-14117438 },
+  { -31031306,-14256194,17332029,-2383520,31312682,-5967183,696309,50292,-20095739,11763584 },
+  { -594563,-2514283,-32234153,12643980,12650761,14811489,665117,-12613632,-19773211,-10713562 },
+ },
+ {
+  { 30464590,-11262872,-4127476,-12734478,19835327,-7105613,-24396175,2075773,-17020157,992471 },
+  { 18357185,-6994433,7766382,16342475,-29324918,411174,14578841,8080033,-11574335,-10601610 },
+  { 19598397,10334610,12555054,2555664,18821899,-10339780,21873263,16014234,26224780,16452269 },
+ },
+ {
+  { -30223925,5145196,5944548,16385966,3976735,2009897,-11377804,-7618186,-20533829,3698650 },
+  { 14187449,3448569,-10636236,-10810935,-22663880,-3433596,7268410,-10890444,27394301,12015369 },
+  { 19695761,16087646,28032085,12999827,6817792,11427614,20244189,-1312777,-13259127,-3402461 },
+ },
+ {
+  { 30860103,12735208,-1888245,-4699734,-16974906,2256940,-8166013,12298312,-8550524,-10393462 },
+  { -5719826,-11245325,-1910649,15569035,26642876,-7587760,-5789354,-15118654,-4976164,12651793 },
+  { -2848395,9953421,11531313,-5282879,26895123,-12697089,-13118820,-16517902,9768698,-2533218 },
+ },
+ {
+  { -24719459,1894651,-287698,-4704085,15348719,-8156530,32767513,12765450,4940095,10678226 },
+  { 18860224,15980149,-18987240,-1562570,-26233012,-11071856,-7843882,13944024,-24372348,16582019 },
+  { -15504260,4970268,-29893044,4175593,-20993212,-2199756,-11704054,15444560,-11003761,7989037 },
+ },
+ {
+  { 31490452,5568061,-2412803,2182383,-32336847,4531686,-32078269,6200206,-19686113,-14800171 },
+  { -17308668,-15879940,-31522777,-2831,-32887382,16375549,8680158,-16371713,28550068,-6857132 },
+  { -28126887,-5688091,16837845,-1820458,-6850681,12700016,-30039981,4364038,1155602,5988841 },
+ },
+ {
+  { 21890435,-13272907,-12624011,12154349,-7831873,15300496,23148983,-4470481,24618407,8283181 },
+  { -33136107,-10512751,9975416,6841041,-31559793,16356536,3070187,-7025928,1466169,10740210 },
+  { -1509399,-15488185,-13503385,-10655916,32799044,909394,-13938903,-5779719,-32164649,-15327040 },
+ },
+ {
+  { 3960823,-14267803,-28026090,-15918051,-19404858,13146868,15567327,951507,-3260321,-573935 },
+  { 24740841,5052253,-30094131,8961361,25877428,6165135,-24368180,14397372,-7380369,-6144105 },
+  { -28888365,3510803,-28103278,-1158478,-11238128,-10631454,-15441463,-14453128,-1625486,-6494814 },
+ },
+},
+{
+ {
+  { 793299,-9230478,8836302,-6235707,-27360908,-2369593,33152843,-4885251,-9906200,-621852 },
+  { 5666233,525582,20782575,-8038419,-24538499,14657740,16099374,1468826,-6171428,-15186581 },
+  { -4859255,-3779343,-2917758,-6748019,7778750,11688288,-30404353,-9871238,-1558923,-9863646 },
+ },
+ {
+  { 10896332,-7719704,824275,472601,-19460308,3009587,25248958,14783338,-30581476,-15757844 },
+  { 10566929,12612572,-31944212,11118703,-12633376,12362879,21752402,8822496,24003793,14264025 },
+  { 27713862,-7355973,-11008240,9227530,27050101,2504721,23886875,-13117525,13958495,-5732453 },
+ },
+ {
+  { -23481610,4867226,-27247128,3900521,29838369,-8212291,-31889399,-10041781,7340521,-15410068 },
+  { 4646514,-8011124,-22766023,-11532654,23184553,8566613,31366726,-1381061,-15066784,-10375192 },
+  { -17270517,12723032,-16993061,14878794,21619651,-6197576,27584817,3093888,-8843694,3849921 },
+ },
+ {
+  { -9064912,2103172,25561640,-15125738,-5239824,9582958,32477045,-9017955,5002294,-15550259 },
+  { -12057553,-11177906,21115585,-13365155,8808712,-12030708,16489530,13378448,-25845716,12741426 },
+  { -5946367,10645103,-30911586,15390284,-3286982,-7118677,24306472,15852464,28834118,-7646072 },
+ },
+ {
+  { -17335748,-9107057,-24531279,9434953,-8472084,-583362,-13090771,455841,20461858,5491305 },
+  { 13669248,-16095482,-12481974,-10203039,-14569770,-11893198,-24995986,11293807,-28588204,-9421832 },
+  { 28497928,6272777,-33022994,14470570,8906179,-1225630,18504674,-14165166,29867745,-8795943 },
+ },
+ {
+  { -16207023,13517196,-27799630,-13697798,24009064,-6373891,-6367600,-13175392,22853429,-4012011 },
+  { 24191378,16712145,-13931797,15217831,14542237,1646131,18603514,-11037887,12876623,-2112447 },
+  { 17902668,4518229,-411702,-2829247,26878217,5258055,-12860753,608397,16031844,3723494 },
+ },
+ {
+  { -28632773,12763728,-20446446,7577504,33001348,-13017745,17558842,-7872890,23896954,-4314245 },
+  { -20005381,-12011952,31520464,605201,2543521,5991821,-2945064,7229064,-9919646,-8826859 },
+  { 28816045,298879,-28165016,-15920938,19000928,-1665890,-12680833,-2949325,-18051778,-2082915 },
+ },
+ {
+  { 16000882,-344896,3493092,-11447198,-29504595,-13159789,12577740,16041268,-19715240,7847707 },
+  { 10151868,10572098,27312476,7922682,14825339,4723128,-32855931,-6519018,-10020567,3852848 },
+  { -11430470,15697596,-21121557,-4420647,5386314,15063598,16514493,-15932110,29330899,-15076224 },
+ },
+},
+{
+ {
+  { -25499735,-4378794,-15222908,-6901211,16615731,2051784,3303702,15490,-27548796,12314391 },
+  { 15683520,-6003043,18109120,-9980648,15337968,-5997823,-16717435,15921866,16103996,-3731215 },
+  { -23169824,-10781249,13588192,-1628807,-3798557,-1074929,-19273607,5402699,-29815713,-9841101 },
+ },
+ {
+  { 23190676,2384583,-32714340,3462154,-29903655,-1529132,-11266856,8911517,-25205859,2739713 },
+  { 21374101,-3554250,-33524649,9874411,15377179,11831242,-33529904,6134907,4931255,11987849 },
+  { -7732,-2978858,-16223486,7277597,105524,-322051,-31480539,13861388,-30076310,10117930 },
+ },
+ {
+  { -29501170,-10744872,-26163768,13051539,-25625564,5089643,-6325503,6704079,12890019,15728940 },
+  { -21972360,-11771379,-951059,-4418840,14704840,2695116,903376,-10428139,12885167,8311031 },
+  { -17516482,5352194,10384213,-13811658,7506451,13453191,26423267,4384730,1888765,-5435404 },
+ },
+ {
+  { -25817338,-3107312,-13494599,-3182506,30896459,-13921729,-32251644,-12707869,-19464434,-3340243 },
+  { -23607977,-2665774,-526091,4651136,5765089,4618330,6092245,14845197,17151279,-9854116 },
+  { -24830458,-12733720,-15165978,10367250,-29530908,-265356,22825805,-7087279,-16866484,16176525 },
+ },
+ {
+  { -23583256,6564961,20063689,3798228,-4740178,7359225,2006182,-10363426,-28746253,-10197509 },
+  { -10626600,-4486402,-13320562,-5125317,3432136,-6393229,23632037,-1940610,32808310,1099883 },
+  { 15030977,5768825,-27451236,-2887299,-6427378,-15361371,-15277896,-6809350,2051441,-15225865 },
+ },
+ {
+  { -3362323,-7239372,7517890,9824992,23555850,295369,5148398,-14154188,-22686354,16633660 },
+  { 4577086,-16752288,13249841,-15304328,19958763,-14537274,18559670,-10759549,8402478,-9864273 },
+  { -28406330,-1051581,-26790155,-907698,-17212414,-11030789,9453451,-14980072,17983010,9967138 },
+ },
+ {
+  { -25762494,6524722,26585488,9969270,24709298,1220360,-1677990,7806337,17507396,3651560 },
+  { -10420457,-4118111,14584639,15971087,-15768321,8861010,26556809,-5574557,-18553322,-11357135 },
+  { 2839101,14284142,4029895,3472686,14402957,12689363,-26642121,8459447,-5605463,-7621941 },
+ },
+ {
+  { -4839289,-3535444,9744961,2871048,25113978,3187018,-25110813,-849066,17258084,-7977739 },
+  { 18164541,-10595176,-17154882,-1542417,19237078,-9745295,23357533,-15217008,26908270,12150756 },
+  { -30264870,-7647865,5112249,-7036672,-1499807,-6974257,43168,-5537701,-32302074,16215819 },
+ },
+},
+{
+ {
+  { -6898905,9824394,-12304779,-4401089,-31397141,-6276835,32574489,12532905,-7503072,-8675347 },
+  { -27343522,-16515468,-27151524,-10722951,946346,16291093,254968,7168080,21676107,-1943028 },
+  { 21260961,-8424752,-16831886,-11920822,-23677961,3968121,-3651949,-6215466,-3556191,-7913075 },
+ },
+ {
+  { 16544754,13250366,-16804428,15546242,-4583003,12757258,-2462308,-8680336,-18907032,-9662799 },
+  { -2415239,-15577728,18312303,4964443,-15272530,-12653564,26820651,16690659,25459437,-4564609 },
+  { -25144690,11425020,28423002,-11020557,-6144921,-15826224,9142795,-2391602,-6432418,-1644817 },
+ },
+ {
+  { -23104652,6253476,16964147,-3768872,-25113972,-12296437,-27457225,-16344658,6335692,7249989 },
+  { -30333227,13979675,7503222,-12368314,-11956721,-4621693,-30272269,2682242,25993170,-12478523 },
+  { 4364628,5930691,32304656,-10044554,-8054781,15091131,22857016,-10598955,31820368,15075278 },
+ },
+ {
+  { 31879134,-8918693,17258761,90626,-8041836,-4917709,24162788,-9650886,-17970238,12833045 },
+  { 19073683,14851414,-24403169,-11860168,7625278,11091125,-19619190,2074449,-9413939,14905377 },
+  { 24483667,-11935567,-2518866,-11547418,-1553130,15355506,-25282080,9253129,27628530,-7555480 },
+ },
+ {
+  { 17597607,8340603,19355617,552187,26198470,-3176583,4593324,-9157582,-14110875,15297016 },
+  { 510886,14337390,-31785257,16638632,6328095,2713355,-20217417,-11864220,8683221,2921426 },
+  { 18606791,11874196,27155355,-5281482,-24031742,6265446,-25178240,-1278924,4674690,13890525 },
+ },
+ {
+  { 13609624,13069022,-27372361,-13055908,24360586,9592974,14977157,9835105,4389687,288396 },
+  { 9922506,-519394,13613107,5883594,-18758345,-434263,-12304062,8317628,23388070,16052080 },
+  { 12720016,11937594,-31970060,-5028689,26900120,8561328,-20155687,-11632979,-14754271,-10812892 },
+ },
+ {
+  { 15961858,14150409,26716931,-665832,-22794328,13603569,11829573,7467844,-28822128,929275 },
+  { 11038231,-11582396,-27310482,-7316562,-10498527,-16307831,-23479533,-9371869,-21393143,2465074 },
+  { 20017163,-4323226,27915242,1529148,12396362,15675764,13817261,-9658066,2463391,-4622140 },
+ },
+ {
+  { -16358878,-12663911,-12065183,4996454,-1256422,1073572,9583558,12851107,4003896,12673717 },
+  { -1731589,-15155870,-3262930,16143082,19294135,13385325,14741514,-9103726,7903886,2348101 },
+  { 24536016,-16515207,12715592,-3862155,1511293,10047386,-3842346,-7129159,-28377538,10048127 },
+ },
+},
+{
+ {
+  { -12622226,-6204820,30718825,2591312,-10617028,12192840,18873298,-7297090,-32297756,15221632 },
+  { -26478122,-11103864,11546244,-1852483,9180880,7656409,-21343950,2095755,29769758,6593415 },
+  { -31994208,-2907461,4176912,3264766,12538965,-868111,26312345,-6118678,30958054,8292160 },
+ },
+ {
+  { 31429822,-13959116,29173532,15632448,12174511,-2760094,32808831,3977186,26143136,-3148876 },
+  { 22648901,1402143,-22799984,13746059,7936347,365344,-8668633,-1674433,-3758243,-2304625 },
+  { -15491917,8012313,-2514730,-12702462,-23965846,-10254029,-1612713,-1535569,-16664475,8194478 },
+ },
+ {
+  { 27338066,-7507420,-7414224,10140405,-19026427,-6589889,27277191,8855376,28572286,3005164 },
+  { 26287124,4821776,25476601,-4145903,-3764513,-15788984,-18008582,1182479,-26094821,-13079595 },
+  { -7171154,3178080,23970071,6201893,-17195577,-4489192,-21876275,-13982627,32208683,-1198248 },
+ },
+ {
+  { -16657702,2817643,-10286362,14811298,6024667,13349505,-27315504,-10497842,-27672585,-11539858 },
+  { 15941029,-9405932,-21367050,8062055,31876073,-238629,-15278393,-1444429,15397331,-4130193 },
+  { 8934485,-13485467,-23286397,-13423241,-32446090,14047986,31170398,-1441021,-27505566,15087184 },
+ },
+ {
+  { -18357243,-2156491,24524913,-16677868,15520427,-6360776,-15502406,11461896,16788528,-5868942 },
+  { -1947386,16013773,21750665,3714552,-17401782,-16055433,-3770287,-10323320,31322514,-11615635 },
+  { 21426655,-5650218,-13648287,-5347537,-28812189,-4920970,-18275391,-14621414,13040862,-12112948 },
+ },
+ {
+  { 11293895,12478086,-27136401,15083750,-29307421,14748872,14555558,-13417103,1613711,4896935 },
+  { -25894883,15323294,-8489791,-8057900,25967126,-13425460,2825960,-4897045,-23971776,-11267415 },
+  { -15924766,-5229880,-17443532,6410664,3622847,10243618,20615400,12405433,-23753030,-8436416 },
+ },
+ {
+  { -7091295,12556208,-20191352,9025187,-17072479,4333801,4378436,2432030,23097949,-566018 },
+  { 4565804,-16025654,20084412,-7842817,1724999,189254,24767264,10103221,-18512313,2424778 },
+  { 366633,-11976806,8173090,-6890119,30788634,5745705,-7168678,1344109,-3642553,12412659 },
+ },
+ {
+  { -24001791,7690286,14929416,-168257,-32210835,-13412986,24162697,-15326504,-3141501,11179385 },
+  { 18289522,-14724954,8056945,16430056,-21729724,7842514,-6001441,-1486897,-18684645,-11443503 },
+  { 476239,6601091,-6152790,-9723375,17503545,-4863900,27672959,13403813,11052904,5219329 },
+ },
+},
+{
+ {
+  { 20678546,-8375738,-32671898,8849123,-5009758,14574752,31186971,-3973730,9014762,-8579056 },
+  { -13644050,-10350239,-15962508,5075808,-1514661,-11534600,-33102500,9160280,8473550,-3256838 },
+  { 24900749,14435722,17209120,-15292541,-22592275,9878983,-7689309,-16335821,-24568481,11788948 },
+ },
+ {
+  { -3118155,-11395194,-13802089,14797441,9652448,-6845904,-20037437,10410733,-24568470,-1458691 },
+  { -15659161,16736706,-22467150,10215878,-9097177,7563911,11871841,-12505194,-18513325,8464118 },
+  { -23400612,8348507,-14585951,-861714,-3950205,-6373419,14325289,8628612,33313881,-8370517 },
+ },
+ {
+  { -20186973,-4967935,22367356,5271547,-1097117,-4788838,-24805667,-10236854,-8940735,-5818269 },
+  { -6948785,-1795212,-32625683,-16021179,32635414,-7374245,15989197,-12838188,28358192,-4253904 },
+  { -23561781,-2799059,-32351682,-1661963,-9147719,10429267,-16637684,4072016,-5351664,5596589 },
+ },
+ {
+  { -28236598,-3390048,12312896,6213178,3117142,16078565,29266239,2557221,1768301,15373193 },
+  { -7243358,-3246960,-4593467,-7553353,-127927,-912245,-1090902,-4504991,-24660491,3442910 },
+  { -30210571,5124043,14181784,8197961,18964734,-11939093,22597931,7176455,-18585478,13365930 },
+ },
+ {
+  { -7877390,-1499958,8324673,4690079,6261860,890446,24538107,-8570186,-9689599,-3031667 },
+  { 25008904,-10771599,-4305031,-9638010,16265036,15721635,683793,-11823784,15723479,-15163481 },
+  { -9660625,12374379,-27006999,-7026148,-7724114,-12314514,11879682,5400171,519526,-1235876 },
+ },
+ {
+  { 22258397,-16332233,-7869817,14613016,-22520255,-2950923,-20353881,7315967,16648397,7605640 },
+  { -8081308,-8464597,-8223311,9719710,19259459,-15348212,23994942,-5281555,-9468848,4763278 },
+  { -21699244,9220969,-15730624,1084137,-25476107,-2852390,31088447,-7764523,-11356529,728112 },
+ },
+ {
+  { 26047220,-11751471,-6900323,-16521798,24092068,9158119,-4273545,-12555558,-29365436,-5498272 },
+  { 17510331,-322857,5854289,8403524,17133918,-3112612,-28111007,12327945,10750447,10014012 },
+  { -10312768,3936952,9156313,-8897683,16498692,-994647,-27481051,-666732,3424691,7540221 },
+ },
+ {
+  { 30322361,-6964110,11361005,-4143317,7433304,4989748,-7071422,-16317219,-9244265,15258046 },
+  { 13054562,-2779497,19155474,469045,-12482797,4566042,5631406,2711395,1062915,-5136345 },
+  { -19240248,-11254599,-29509029,-7499965,-5835763,13005411,-6066489,12194497,32960380,1459310 },
+ },
+},
+{
+ {
+  { 19852034,7027924,23669353,10020366,8586503,-6657907,394197,-6101885,18638003,-11174937 },
+  { 31395534,15098109,26581030,8030562,-16527914,-5007134,9012486,-7584354,-6643087,-5442636 },
+  { -9192165,-2347377,-1997099,4529534,25766844,607986,-13222,9677543,-32294889,-6456008 },
+ },
+ {
+  { -2444496,-149937,29348902,8186665,1873760,12489863,-30934579,-7839692,-7852844,-8138429 },
+  { -15236356,-15433509,7766470,746860,26346930,-10221762,-27333451,10754588,-9431476,5203576 },
+  { 31834314,14135496,-770007,5159118,20917671,-16768096,-7467973,-7337524,31809243,7347066 },
+ },
+ {
+  { -9606723,-11874240,20414459,13033986,13716524,-11691881,19797970,-12211255,15192876,-2087490 },
+  { -12663563,-2181719,1168162,-3804809,26747877,-14138091,10609330,12694420,33473243,-13382104 },
+  { 33184999,11180355,15832085,-11385430,-1633671,225884,15089336,-11023903,-6135662,14480053 },
+ },
+ {
+  { 31308717,-5619998,31030840,-1897099,15674547,-6582883,5496208,13685227,27595050,8737275 },
+  { -20318852,-15150239,10933843,-16178022,8335352,-7546022,-31008351,-12610604,26498114,66511 },
+  { 22644454,-8761729,-16671776,4884562,-3105614,-13559366,30540766,-4286747,-13327787,-7515095 },
+ },
+ {
+  { -28017847,9834845,18617207,-2681312,-3401956,-13307506,8205540,13585437,-17127465,15115439 },
+  { 23711543,-672915,31206561,-8362711,6164647,-9709987,-33535882,-1426096,8236921,16492939 },
+  { -23910559,-13515526,-26299483,-4503841,25005590,-7687270,19574902,10071562,6708380,-6222424 },
+ },
+ {
+  { 2101391,-4930054,19702731,2367575,-15427167,1047675,5301017,9328700,29955601,-11678310 },
+  { 3096359,9271816,-21620864,-15521844,-14847996,-7592937,-25892142,-12635595,-9917575,6216608 },
+  { -32615849,338663,-25195611,2510422,-29213566,-13820213,24822830,-6146567,-26767480,7525079 },
+ },
+ {
+  { -23066649,-13985623,16133487,-7896178,-3389565,778788,-910336,-2782495,-19386633,11994101 },
+  { 21691500,-13624626,-641331,-14367021,3285881,-3483596,-25064666,9718258,-7477437,13381418 },
+  { 18445390,-4202236,14979846,11622458,-1727110,-3582980,23111648,-6375247,28535282,15779576 },
+ },
+ {
+  { 30098053,3089662,-9234387,16662135,-21306940,11308411,-14068454,12021730,9955285,-16303356 },
+  { 9734894,-14576830,-7473633,-9138735,2060392,11313496,-18426029,9924399,20194861,13380996 },
+  { -26378102,-7965207,-22167821,15789297,-18055342,-6168792,-1984914,15707771,26342023,10146099 },
+ },
+},
+{
+ {
+  { -26016874,-219943,21339191,-41388,19745256,-2878700,-29637280,2227040,21612326,-545728 },
+  { -13077387,1184228,23562814,-5970442,-20351244,-6348714,25764461,12243797,-20856566,11649658 },
+  { -10031494,11262626,27384172,2271902,26947504,-15997771,39944,6114064,33514190,2333242 },
+ },
+ {
+  { -21433588,-12421821,8119782,7219913,-21830522,-9016134,-6679750,-12670638,24350578,-13450001 },
+  { -4116307,-11271533,-23886186,4843615,-30088339,690623,-31536088,-10406836,8317860,12352766 },
+  { 18200138,-14475911,-33087759,-2696619,-23702521,-9102511,-23552096,-2287550,20712163,6719373 },
+ },
+ {
+  { 26656208,6075253,-7858556,1886072,-28344043,4262326,11117530,-3763210,26224235,-3297458 },
+  { -17168938,-14854097,-3395676,-16369877,-19954045,14050420,21728352,9493610,18620611,-16428628 },
+  { -13323321,13325349,11432106,5964811,18609221,6062965,-5269471,-9725556,-30701573,-16479657 },
+ },
+ {
+  { -23860538,-11233159,26961357,1640861,-32413112,-16737940,12248509,-5240639,13735342,1934062 },
+  { 25089769,6742589,17081145,-13406266,21909293,-16067981,-15136294,-3765346,-21277997,5473616 },
+  { 31883677,-7961101,1083432,-11572403,22828471,13290673,-7125085,12469656,29111212,-5451014 },
+ },
+ {
+  { 24244947,-15050407,-26262976,2791540,-14997599,16666678,24367466,6388839,-10295587,452383 },
+  { -25640782,-3417841,5217916,16224624,19987036,-4082269,-24236251,-5915248,15766062,8407814 },
+  { -20406999,13990231,15495425,16395525,5377168,15166495,-8917023,-4388953,-8067909,2276718 },
+ },
+ {
+  { 30157918,12924066,-17712050,9245753,19895028,3368142,-23827587,5096219,22740376,-7303417 },
+  { 2041139,-14256350,7783687,13876377,-25946985,-13352459,24051124,13742383,-15637599,13295222 },
+  { 33338237,-8505733,12532113,7977527,9106186,-1715251,-17720195,-4612972,-4451357,-14669444 },
+ },
+ {
+  { -20045281,5454097,-14346548,6447146,28862071,1883651,-2469266,-4141880,7770569,9620597 },
+  { 23208068,7979712,33071466,8149229,1758231,-10834995,30945528,-1694323,-33502340,-14767970 },
+  { 1439958,-16270480,-1079989,-793782,4625402,10647766,-5043801,1220118,30494170,-11440799 },
+ },
+ {
+  { -5037580,-13028295,-2970559,-3061767,15640974,-6701666,-26739026,926050,-1684339,-13333647 },
+  { 13908495,-3549272,30919928,-6273825,-21521863,7989039,9021034,9078865,3353509,4033511 },
+  { -29663431,-15113610,32259991,-344482,24295849,-12912123,23161163,8839127,27485041,7356032 },
+ },
+},
+{
+ {
+  { 9661027,705443,11980065,-5370154,-1628543,14661173,-6346142,2625015,28431036,-16771834 },
+  { -23839233,-8311415,-25945511,7480958,-17681669,-8354183,-22545972,14150565,15970762,4099461 },
+  { 29262576,16756590,26350592,-8793563,8529671,-11208050,13617293,-9937143,11465739,8317062 },
+ },
+ {
+  { -25493081,-6962928,32500200,-9419051,-23038724,-2302222,14898637,3848455,20969334,-5157516 },
+  { -20384450,-14347713,-18336405,13884722,-33039454,2842114,-21610826,-3649888,11177095,14989547 },
+  { -24496721,-11716016,16959896,2278463,12066309,10137771,13515641,2581286,-28487508,9930240 },
+ },
+ {
+  { -17751622,-2097826,16544300,-13009300,-15914807,-14949081,18345767,-13403753,16291481,-5314038 },
+  { -33229194,2553288,32678213,9875984,8534129,6889387,-9676774,6957617,4368891,9788741 },
+  { 16660756,7281060,-10830758,12911820,20108584,-8101676,-21722536,-8613148,16250552,-11111103 },
+ },
+ {
+  { -19765507,2390526,-16551031,14161980,1905286,6414907,4689584,10604807,-30190403,4782747 },
+  { -1354539,14736941,-7367442,-13292886,7710542,-14155590,-9981571,4383045,22546403,437323 },
+  { 31665577,-12180464,-16186830,1491339,-18368625,3294682,27343084,2786261,-30633590,-14097016 },
+ },
+ {
+  { -14467279,-683715,-33374107,7448552,19294360,14334329,-19690631,2355319,-19284671,-6114373 },
+  { 15121312,-15796162,6377020,-6031361,-10798111,-12957845,18952177,15496498,-29380133,11754228 },
+  { -2637277,-13483075,8488727,-14303896,12728761,-1622493,7141596,11724556,22761615,-10134141 },
+ },
+ {
+  { 16918416,11729663,-18083579,3022987,-31015732,-13339659,-28741185,-12227393,32851222,11717399 },
+  { 11166634,7338049,-6722523,4531520,-29468672,-7302055,31474879,3483633,-1193175,-4030831 },
+  { -185635,9921305,31456609,-13536438,-12013818,13348923,33142652,6546660,-19985279,-3948376 },
+ },
+ {
+  { -32460596,11266712,-11197107,-7899103,31703694,3855903,-8537131,-12833048,-30772034,-15486313 },
+  { -18006477,12709068,3991746,-6479188,-21491523,-10550425,-31135347,-16049879,10928917,3011958 },
+  { -6957757,-15594337,31696059,334240,29576716,14796075,-30831056,-12805180,18008031,10258577 },
+ },
+ {
+  { -22448644,15655569,7018479,-4410003,-30314266,-1201591,-1853465,1367120,25127874,6671743 },
+  { 29701166,-14373934,-10878120,9279288,-17568,13127210,21382910,11042292,25838796,4642684 },
+  { -20430234,14955537,-24126347,8124619,-5369288,-5990470,30468147,-13900640,18423289,4177476 },
+ },
+},
diff --git a/libmariadb/plugins/auth/ref10/base2.h b/libmariadb/plugins/auth/ref10/base2.h
new file mode 100644
index 00000000..8c538440
--- /dev/null
+++ b/libmariadb/plugins/auth/ref10/base2.h
@@ -0,0 +1,40 @@
+ {
+  { 25967493,-14356035,29566456,3660896,-12694345,4014787,27544626,-11754271,-6079156,2047605 },
+  { -12545711,934262,-2722910,3049990,-727428,9406986,12720692,5043384,19500929,-15469378 },
+  { -8738181,4489570,9688441,-14785194,10184609,-12363380,29287919,11864899,-24514362,-4438546 },
+ },
+ {
+  { 15636291,-9688557,24204773,-7912398,616977,-16685262,27787600,-14772189,28944400,-1550024 },
+  { 16568933,4717097,-11556148,-1102322,15682896,-11807043,16354577,-11775962,7689662,11199574 },
+  { 30464156,-5976125,-11779434,-15670865,23220365,15915852,7512774,10017326,-17749093,-9920357 },
+ },
+ {
+  { 10861363,11473154,27284546,1981175,-30064349,12577861,32867885,14515107,-15438304,10819380 },
+  { 4708026,6336745,20377586,9066809,-11272109,6594696,-25653668,12483688,-12668491,5581306 },
+  { 19563160,16186464,-29386857,4097519,10237984,-4348115,28542350,13850243,-23678021,-15815942 },
+ },
+ {
+  { 5153746,9909285,1723747,-2777874,30523605,5516873,19480852,5230134,-23952439,-15175766 },
+  { -30269007,-3463509,7665486,10083793,28475525,1649722,20654025,16520125,30598449,7715701 },
+  { 28881845,14381568,9657904,3680757,-20181635,7843316,-31400660,1370708,29794553,-1409300 },
+ },
+ {
+  { -22518993,-6692182,14201702,-8745502,-23510406,8844726,18474211,-1361450,-13062696,13821877 },
+  { -6455177,-7839871,3374702,-4740862,-27098617,-10571707,31655028,-7212327,18853322,-14220951 },
+  { 4566830,-12963868,-28974889,-12240689,-7602672,-2830569,-8514358,-10431137,2207753,-3209784 },
+ },
+ {
+  { -25154831,-4185821,29681144,7868801,-6854661,-9423865,-12437364,-663000,-31111463,-16132436 },
+  { 25576264,-2703214,7349804,-11814844,16472782,9300885,3844789,15725684,171356,6466918 },
+  { 23103977,13316479,9739013,-16149481,817875,-15038942,8965339,-14088058,-30714912,16193877 },
+ },
+ {
+  { -33521811,3180713,-2394130,14003687,-16903474,-16270840,17238398,4729455,-18074513,9256800 },
+  { -25182317,-4174131,32336398,5036987,-21236817,11360617,22616405,9761698,-19827198,630305 },
+  { -13720693,2639453,-24237460,-7406481,9494427,-5774029,-6554551,-15960994,-2449256,-14291300 },
+ },
+ {
+  { -3151181,-5046075,9282714,6866145,-31907062,-863023,-18940575,15033784,25105118,-7894876 },
+  { -24326370,15950226,-31801215,-14592823,-11662737,-5090925,1573892,-2625887,2198790,-15804619 },
+  { -3099351,10324967,-2241613,7453183,-5446979,-2735503,-13812022,-16236442,-32461234,-12290683 },
+ },
diff --git a/libmariadb/plugins/auth/ref10/crypto_hash_sha512.h b/libmariadb/plugins/auth/ref10/crypto_hash_sha512.h
new file mode 100644
index 00000000..c023f30f
--- /dev/null
+++ b/libmariadb/plugins/auth/ref10/crypto_hash_sha512.h
@@ -0,0 +1,7 @@
+#if defined(MYSQL_CLIENT) || defined(LIBMARIADB)
+#include <ma_crypt.h>
+#define crypto_hash_sha512(DST,SRC,SLEN) ma_hash(MA_HASH_SHA512, SRC, SLEN, DST)
+#else
+#include <mysql/service_sha2.h>
+#define crypto_hash_sha512(DST,SRC,SLEN) my_sha512(DST,(char*)(SRC),SLEN)
+#endif
diff --git a/libmariadb/plugins/auth/ref10/crypto_int32.h b/libmariadb/plugins/auth/ref10/crypto_int32.h
new file mode 100644
index 00000000..642fca05
--- /dev/null
+++ b/libmariadb/plugins/auth/ref10/crypto_int32.h
@@ -0,0 +1,5 @@
+#include <stdint.h>
+#include <sys/types.h>
+typedef int32_t crypto_int32;
+
+#define select ed25519_select
diff --git a/libmariadb/plugins/auth/ref10/crypto_int64.h b/libmariadb/plugins/auth/ref10/crypto_int64.h
new file mode 100644
index 00000000..a308e406
--- /dev/null
+++ b/libmariadb/plugins/auth/ref10/crypto_int64.h
@@ -0,0 +1,5 @@
+#include <stdint.h>
+#include <sys/types.h>
+typedef int64_t crypto_int64;
+
+#define select ed25519_select
diff --git a/libmariadb/plugins/auth/ref10/crypto_sign.h b/libmariadb/plugins/auth/ref10/crypto_sign.h
new file mode 100644
index 00000000..5f9b3437
--- /dev/null
+++ b/libmariadb/plugins/auth/ref10/crypto_sign.h
@@ -0,0 +1,13 @@
+int crypto_sign_keypair(
+  unsigned char *pk,
+  unsigned char *pw, unsigned long long pwlen
+);
+int ma_crypto_sign(
+  unsigned char *sm,
+  const unsigned char *m, unsigned long long mlen,
+  const unsigned char *pw, unsigned long long pwlen
+);
+int crypto_sign_open(
+  unsigned char *sm, unsigned long long smlen,
+  const unsigned char *pk
+);
diff --git a/libmariadb/plugins/auth/ref10/crypto_uint32.h b/libmariadb/plugins/auth/ref10/crypto_uint32.h
new file mode 100644
index 00000000..ab2977ca
--- /dev/null
+++ b/libmariadb/plugins/auth/ref10/crypto_uint32.h
@@ -0,0 +1,5 @@
+#include <stdint.h>
+#include <sys/types.h>
+typedef uint32_t crypto_uint32;
+
+#define select ed25519_select
diff --git a/libmariadb/plugins/auth/ref10/crypto_uint64.h b/libmariadb/plugins/auth/ref10/crypto_uint64.h
new file mode 100644
index 00000000..029c6819
--- /dev/null
+++ b/libmariadb/plugins/auth/ref10/crypto_uint64.h
@@ -0,0 +1,5 @@
+#include <stdint.h>
+#include <sys/types.h>
+typedef uint64_t crypto_uint64;
+
+#define select ed25519_select
diff --git a/libmariadb/plugins/auth/ref10/crypto_verify.h b/libmariadb/plugins/auth/ref10/crypto_verify.h
new file mode 100644
index 00000000..33e11b1e
--- /dev/null
+++ b/libmariadb/plugins/auth/ref10/crypto_verify.h
@@ -0,0 +1 @@
+int crypto_verify(const unsigned char *x,const unsigned char *y);
diff --git a/libmariadb/plugins/auth/ref10/crypto_verify_32.h b/libmariadb/plugins/auth/ref10/crypto_verify_32.h
new file mode 100644
index 00000000..d8235b75
--- /dev/null
+++ b/libmariadb/plugins/auth/ref10/crypto_verify_32.h
@@ -0,0 +1,2 @@
+#define crypto_verify_32 crypto_verify
+int crypto_verify(const unsigned char *x,const unsigned char *y);
diff --git a/libmariadb/plugins/auth/ref10/d.h b/libmariadb/plugins/auth/ref10/d.h
new file mode 100644
index 00000000..e25f5783
--- /dev/null
+++ b/libmariadb/plugins/auth/ref10/d.h
@@ -0,0 +1 @@
+-10913610,13857413,-15372611,6949391,114729,-8787816,-6275908,-3247719,-18696448,-12055116
diff --git a/libmariadb/plugins/auth/ref10/d2.h b/libmariadb/plugins/auth/ref10/d2.h
new file mode 100644
index 00000000..01aaec75
--- /dev/null
+++ b/libmariadb/plugins/auth/ref10/d2.h
@@ -0,0 +1 @@
+-21827239,-5839606,-30745221,13898782,229458,15978800,-12551817,-6495438,29715968,9444199
diff --git a/libmariadb/plugins/auth/ref10/fe.h b/libmariadb/plugins/auth/ref10/fe.h
new file mode 100644
index 00000000..60c308ba
--- /dev/null
+++ b/libmariadb/plugins/auth/ref10/fe.h
@@ -0,0 +1,56 @@
+#ifndef FE_H
+#define FE_H
+
+#include "crypto_int32.h"
+
+typedef crypto_int32 fe[10];
+
+/*
+fe means field element.
+Here the field is \Z/(2^255-19).
+An element t, entries t[0]...t[9], represents the integer
+t[0]+2^26 t[1]+2^51 t[2]+2^77 t[3]+2^102 t[4]+...+2^230 t[9].
+Bounds on each t[i] vary depending on context.
+*/
+
+#define fe_frombytes crypto_sign_ed25519_ref10_fe_frombytes
+#define fe_tobytes crypto_sign_ed25519_ref10_fe_tobytes
+#define fe_copy crypto_sign_ed25519_ref10_fe_copy
+#define fe_isnonzero crypto_sign_ed25519_ref10_fe_isnonzero
+#define fe_isnegative crypto_sign_ed25519_ref10_fe_isnegative
+#define fe_0 crypto_sign_ed25519_ref10_fe_0
+#define fe_1 crypto_sign_ed25519_ref10_fe_1
+#define fe_cswap crypto_sign_ed25519_ref10_fe_cswap
+#define fe_cmov crypto_sign_ed25519_ref10_fe_cmov
+#define fe_add crypto_sign_ed25519_ref10_fe_add
+#define fe_sub crypto_sign_ed25519_ref10_fe_sub
+#define fe_neg crypto_sign_ed25519_ref10_fe_neg
+#define fe_mul crypto_sign_ed25519_ref10_fe_mul
+#define fe_sq crypto_sign_ed25519_ref10_fe_sq
+#define fe_sq2 crypto_sign_ed25519_ref10_fe_sq2
+#define fe_mul121666 crypto_sign_ed25519_ref10_fe_mul121666
+#define fe_invert crypto_sign_ed25519_ref10_fe_invert
+#define fe_pow22523 crypto_sign_ed25519_ref10_fe_pow22523
+
+extern void fe_frombytes(fe,const unsigned char *);
+extern void fe_tobytes(unsigned char *,const fe);
+
+extern void fe_copy(fe,const fe);
+extern int fe_isnonzero(const fe);
+extern int fe_isnegative(const fe);
+extern void fe_0(fe);
+extern void fe_1(fe);
+extern void fe_cswap(fe,fe,unsigned int);
+extern void fe_cmov(fe,const fe,unsigned int);
+
+extern void fe_add(fe,const fe,const fe);
+extern void fe_sub(fe,const fe,const fe);
+extern void fe_neg(fe,const fe);
+extern void fe_mul(fe,const fe,const fe);
+extern void fe_sq(fe,const fe);
+extern void fe_sq2(fe,const fe);
+extern void fe_mul121666(fe,const fe);
+extern void fe_invert(fe,const fe);
+extern void fe_pow22523(fe,const fe);
+
+#endif
diff --git a/libmariadb/plugins/auth/ref10/fe_0.c b/libmariadb/plugins/auth/ref10/fe_0.c
new file mode 100644
index 00000000..ec879d73
--- /dev/null
+++ b/libmariadb/plugins/auth/ref10/fe_0.c
@@ -0,0 +1,19 @@
+#include "fe.h"
+
+/*
+h = 0
+*/
+
+void fe_0(fe h)
+{
+  h[0] = 0;
+  h[1] = 0;
+  h[2] = 0;
+  h[3] = 0;
+  h[4] = 0;
+  h[5] = 0;
+  h[6] = 0;
+  h[7] = 0;
+  h[8] = 0;
+  h[9] = 0;
+}
diff --git a/libmariadb/plugins/auth/ref10/fe_1.c b/libmariadb/plugins/auth/ref10/fe_1.c
new file mode 100644
index 00000000..8cf77848
--- /dev/null
+++ b/libmariadb/plugins/auth/ref10/fe_1.c
@@ -0,0 +1,19 @@
+#include "fe.h"
+
+/*
+h = 1
+*/
+
+void fe_1(fe h)
+{
+  h[0] = 1;
+  h[1] = 0;
+  h[2] = 0;
+  h[3] = 0;
+  h[4] = 0;
+  h[5] = 0;
+  h[6] = 0;
+  h[7] = 0;
+  h[8] = 0;
+  h[9] = 0;
+}
diff --git a/libmariadb/plugins/auth/ref10/fe_add.c b/libmariadb/plugins/auth/ref10/fe_add.c
new file mode 100644
index 00000000..e6a81da2
--- /dev/null
+++ b/libmariadb/plugins/auth/ref10/fe_add.c
@@ -0,0 +1,57 @@
+#include "fe.h"
+
+/*
+h = f + g
+Can overlap h with f or g.
+
+Preconditions:
+   |f| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc.
+   |g| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc.
+
+Postconditions:
+   |h| bounded by 1.1*2^26,1.1*2^25,1.1*2^26,1.1*2^25,etc.
+*/
+
+void fe_add(fe h,const fe f,const fe g)
+{
+  crypto_int32 f0 = f[0];
+  crypto_int32 f1 = f[1];
+  crypto_int32 f2 = f[2];
+  crypto_int32 f3 = f[3];
+  crypto_int32 f4 = f[4];
+  crypto_int32 f5 = f[5];
+  crypto_int32 f6 = f[6];
+  crypto_int32 f7 = f[7];
+  crypto_int32 f8 = f[8];
+  crypto_int32 f9 = f[9];
+  crypto_int32 g0 = g[0];
+  crypto_int32 g1 = g[1];
+  crypto_int32 g2 = g[2];
+  crypto_int32 g3 = g[3];
+  crypto_int32 g4 = g[4];
+  crypto_int32 g5 = g[5];
+  crypto_int32 g6 = g[6];
+  crypto_int32 g7 = g[7];
+  crypto_int32 g8 = g[8];
+  crypto_int32 g9 = g[9];
+  crypto_int32 h0 = f0 + g0;
+  crypto_int32 h1 = f1 + g1;
+  crypto_int32 h2 = f2 + g2;
+  crypto_int32 h3 = f3 + g3;
+  crypto_int32 h4 = f4 + g4;
+  crypto_int32 h5 = f5 + g5;
+  crypto_int32 h6 = f6 + g6;
+  crypto_int32 h7 = f7 + g7;
+  crypto_int32 h8 = f8 + g8;
+  crypto_int32 h9 = f9 + g9;
+  h[0] = h0;
+  h[1] = h1;
+  h[2] = h2;
+  h[3] = h3;
+  h[4] = h4;
+  h[5] = h5;
+  h[6] = h6;
+  h[7] = h7;
+  h[8] = h8;
+  h[9] = h9;
+}
diff --git a/libmariadb/plugins/auth/ref10/fe_cmov.c b/libmariadb/plugins/auth/ref10/fe_cmov.c
new file mode 100644
index 00000000..8ca584fb
--- /dev/null
+++ b/libmariadb/plugins/auth/ref10/fe_cmov.c
@@ -0,0 +1,63 @@
+#include "fe.h"
+
+/*
+Replace (f,g) with (g,g) if b == 1;
+replace (f,g) with (f,g) if b == 0.
+
+Preconditions: b in {0,1}.
+*/
+
+void fe_cmov(fe f,const fe g,unsigned int b)
+{
+  crypto_int32 f0 = f[0];
+  crypto_int32 f1 = f[1];
+  crypto_int32 f2 = f[2];
+  crypto_int32 f3 = f[3];
+  crypto_int32 f4 = f[4];
+  crypto_int32 f5 = f[5];
+  crypto_int32 f6 = f[6];
+  crypto_int32 f7 = f[7];
+  crypto_int32 f8 = f[8];
+  crypto_int32 f9 = f[9];
+  crypto_int32 g0 = g[0];
+  crypto_int32 g1 = g[1];
+  crypto_int32 g2 = g[2];
+  crypto_int32 g3 = g[3];
+  crypto_int32 g4 = g[4];
+  crypto_int32 g5 = g[5];
+  crypto_int32 g6 = g[6];
+  crypto_int32 g7 = g[7];
+  crypto_int32 g8 = g[8];
+  crypto_int32 g9 = g[9];
+  crypto_int32 x0 = f0 ^ g0;
+  crypto_int32 x1 = f1 ^ g1;
+  crypto_int32 x2 = f2 ^ g2;
+  crypto_int32 x3 = f3 ^ g3;
+  crypto_int32 x4 = f4 ^ g4;
+  crypto_int32 x5 = f5 ^ g5;
+  crypto_int32 x6 = f6 ^ g6;
+  crypto_int32 x7 = f7 ^ g7;
+  crypto_int32 x8 = f8 ^ g8;
+  crypto_int32 x9 = f9 ^ g9;
+  b = -b;
+  x0 &= b;
+  x1 &= b;
+  x2 &= b;
+  x3 &= b;
+  x4 &= b;
+  x5 &= b;
+  x6 &= b;
+  x7 &= b;
+  x8 &= b;
+  x9 &= b;
+  f[0] = f0 ^ x0;
+  f[1] = f1 ^ x1;
+  f[2] = f2 ^ x2;
+  f[3] = f3 ^ x3;
+  f[4] = f4 ^ x4;
+  f[5] = f5 ^ x5;
+  f[6] = f6 ^ x6;
+  f[7] = f7 ^ x7;
+  f[8] = f8 ^ x8;
+  f[9] = f9 ^ x9;
+}
diff --git a/libmariadb/plugins/auth/ref10/fe_copy.c b/libmariadb/plugins/auth/ref10/fe_copy.c
new file mode 100644
index 00000000..9c5bf865
--- /dev/null
+++ b/libmariadb/plugins/auth/ref10/fe_copy.c
@@ -0,0 +1,29 @@
+#include "fe.h"
+
+/*
+h = f
+*/
+
+void fe_copy(fe h,const fe f)
+{
+  crypto_int32 f0 = f[0];
+  crypto_int32 f1 = f[1];
+  crypto_int32 f2 = f[2];
+  crypto_int32 f3 = f[3];
+  crypto_int32 f4 = f[4];
+  crypto_int32 f5 = f[5];
+  crypto_int32 f6 = f[6];
+  crypto_int32 f7 = f[7];
+  crypto_int32 f8 = f[8];
+  crypto_int32 f9 = f[9];
+  h[0] = f0;
+  h[1] = f1;
+  h[2] = f2;
+  h[3] = f3;
+  h[4] = f4;
+  h[5] = f5;
+  h[6] = f6;
+  h[7] = f7;
+  h[8] = f8;
+  h[9] = f9;
+}
diff --git a/libmariadb/plugins/auth/ref10/fe_frombytes.c b/libmariadb/plugins/auth/ref10/fe_frombytes.c
new file mode 100644
index 00000000..5c179174
--- /dev/null
+++ b/libmariadb/plugins/auth/ref10/fe_frombytes.c
@@ -0,0 +1,73 @@
+#include "fe.h"
+#include "crypto_int64.h"
+#include "crypto_uint64.h"
+
+static crypto_uint64 load_3(const unsigned char *in)
+{
+  crypto_uint64 result;
+  result = (crypto_uint64) in[0];
+  result |= ((crypto_uint64) in[1]) << 8;
+  result |= ((crypto_uint64) in[2]) << 16;
+  return result;
+}
+
+static crypto_uint64 load_4(const unsigned char *in)
+{
+  crypto_uint64 result;
+  result = (crypto_uint64) in[0];
+  result |= ((crypto_uint64) in[1]) << 8;
+  result |= ((crypto_uint64) in[2]) << 16;
+  result |= ((crypto_uint64) in[3]) << 24;
+  return result;
+}
+
+/*
+Ignores top bit of h.
+*/
+
+void fe_frombytes(fe h,const unsigned char *s)
+{
+  crypto_int64 h0 = load_4(s);
+  crypto_int64 h1 = load_3(s + 4) << 6;
+  crypto_int64 h2 = load_3(s + 7) << 5;
+  crypto_int64 h3 = load_3(s + 10) << 3;
+  crypto_int64 h4 = load_3(s + 13) << 2;
+  crypto_int64 h5 = load_4(s + 16);
+  crypto_int64 h6 = load_3(s + 20) << 7;
+  crypto_int64 h7 = load_3(s + 23) << 5;
+  crypto_int64 h8 = load_3(s + 26) << 4;
+  crypto_int64 h9 = (load_3(s + 29) & 8388607) << 2;
+  crypto_int64 carry0;
+  crypto_int64 carry1;
+  crypto_int64 carry2;
+  crypto_int64 carry3;
+  crypto_int64 carry4;
+  crypto_int64 carry5;
+  crypto_int64 carry6;
+  crypto_int64 carry7;
+  crypto_int64 carry8;
+  crypto_int64 carry9;
+
+  carry9 = (h9 + (crypto_int64) (1<<24)) >> 25; h0 += carry9 * 19; h9 -= carry9 << 25;
+  carry1 = (h1 + (crypto_int64) (1<<24)) >> 25; h2 += carry1; h1 -= carry1 << 25;
+  carry3 = (h3 + (crypto_int64) (1<<24)) >> 25; h4 += carry3; h3 -= carry3 << 25;
+  carry5 = (h5 + (crypto_int64) (1<<24)) >> 25; h6 += carry5; h5 -= carry5 << 25;
+  carry7 = (h7 + (crypto_int64) (1<<24)) >> 25; h8 += carry7; h7 -= carry7 << 25;
+
+  carry0 = (h0 + (crypto_int64) (1<<25)) >> 26; h1 += carry0; h0 -= carry0 << 26;
+  carry2 = (h2 + (crypto_int64) (1<<25)) >> 26; h3 += carry2; h2 -= carry2 << 26;
+  carry4 = (h4 + (crypto_int64) (1<<25)) >> 26; h5 += carry4; h4 -= carry4 << 26;
+  carry6 = (h6 + (crypto_int64) (1<<25)) >> 26; h7 += carry6; h6 -= carry6 << 26;
+  carry8 = (h8 + (crypto_int64) (1<<25)) >> 26; h9 += carry8; h8 -= carry8 << 26;
+
+  h[0] = h0;
+  h[1] = h1;
+  h[2] = h2;
+  h[3] = h3;
+  h[4] = h4;
+  h[5] = h5;
+  h[6] = h6;
+  h[7] = h7;
+  h[8] = h8;
+  h[9] = h9;
+}
diff --git a/libmariadb/plugins/auth/ref10/fe_invert.c b/libmariadb/plugins/auth/ref10/fe_invert.c
new file mode 100644
index 00000000..bcfdb8ff
--- /dev/null
+++ b/libmariadb/plugins/auth/ref10/fe_invert.c
@@ -0,0 +1,14 @@
+#include "fe.h"
+
+void fe_invert(fe out,const fe z)
+{
+  fe t0;
+  fe t1;
+  fe t2;
+  fe t3;
+  int i;
+
+#include "pow225521.h"
+
+  return;
+}
diff --git a/libmariadb/plugins/auth/ref10/fe_isnegative.c b/libmariadb/plugins/auth/ref10/fe_isnegative.c
new file mode 100644
index 00000000..3b2c8b8d
--- /dev/null
+++ b/libmariadb/plugins/auth/ref10/fe_isnegative.c
@@ -0,0 +1,16 @@
+#include "fe.h"
+
+/*
+return 1 if f is in {1,3,5,...,q-2}
+return 0 if f is in {0,2,4,...,q-1}
+
+Preconditions:
+   |f| bounded by 1.1*2^26,1.1*2^25,1.1*2^26,1.1*2^25,etc.
+*/
+
+int fe_isnegative(const fe f)
+{
+  unsigned char s[32];
+  fe_tobytes(s,f);
+  return s[0] & 1;
+}
diff --git a/libmariadb/plugins/auth/ref10/fe_isnonzero.c b/libmariadb/plugins/auth/ref10/fe_isnonzero.c
new file mode 100644
index 00000000..47568001
--- /dev/null
+++ b/libmariadb/plugins/auth/ref10/fe_isnonzero.c
@@ -0,0 +1,19 @@
+#include "fe.h"
+#include "crypto_verify_32.h"
+
+/*
+return 1 if f == 0
+return 0 if f != 0
+
+Preconditions:
+   |f| bounded by 1.1*2^26,1.1*2^25,1.1*2^26,1.1*2^25,etc.
+*/
+
+static const unsigned char zero[32];
+
+int fe_isnonzero(const fe f)
+{
+  unsigned char s[32];
+  fe_tobytes(s,f);
+  return crypto_verify_32(s,zero);
+}
diff --git a/libmariadb/plugins/auth/ref10/fe_mul.c b/libmariadb/plugins/auth/ref10/fe_mul.c
new file mode 100644
index 00000000..26ca8b36
--- /dev/null
+++ b/libmariadb/plugins/auth/ref10/fe_mul.c
@@ -0,0 +1,253 @@
+#include "fe.h"
+#include "crypto_int64.h"
+
+/*
+h = f * g
+Can overlap h with f or g.
+
+Preconditions:
+   |f| bounded by 1.65*2^26,1.65*2^25,1.65*2^26,1.65*2^25,etc.
+   |g| bounded by 1.65*2^26,1.65*2^25,1.65*2^26,1.65*2^25,etc.
+
+Postconditions:
+   |h| bounded by 1.01*2^25,1.01*2^24,1.01*2^25,1.01*2^24,etc.
+*/
+
+/*
+Notes on implementation strategy:
+
+Using schoolbook multiplication.
+Karatsuba would save a little in some cost models.
+
+Most multiplications by 2 and 19 are 32-bit precomputations;
+cheaper than 64-bit postcomputations.
+
+There is one remaining multiplication by 19 in the carry chain;
+one *19 precomputation can be merged into this,
+but the resulting data flow is considerably less clean.
+
+There are 12 carries below.
+10 of them are 2-way parallelizable and vectorizable.
+Can get away with 11 carries, but then data flow is much deeper.
+
+With tighter constraints on inputs can squeeze carries into int32.
+*/
+
+void fe_mul(fe h,const fe f,const fe g)
+{
+  crypto_int32 f0 = f[0];
+  crypto_int32 f1 = f[1];
+  crypto_int32 f2 = f[2];
+  crypto_int32 f3 = f[3];
+  crypto_int32 f4 = f[4];
+  crypto_int32 f5 = f[5];
+  crypto_int32 f6 = f[6];
+  crypto_int32 f7 = f[7];
+  crypto_int32 f8 = f[8];
+  crypto_int32 f9 = f[9];
+  crypto_int32 g0 = g[0];
+  crypto_int32 g1 = g[1];
+  crypto_int32 g2 = g[2];
+  crypto_int32 g3 = g[3];
+  crypto_int32 g4 = g[4];
+  crypto_int32 g5 = g[5];
+  crypto_int32 g6 = g[6];
+  crypto_int32 g7 = g[7];
+  crypto_int32 g8 = g[8];
+  crypto_int32 g9 = g[9];
+  crypto_int32 g1_19 = 19 * g1; /* 1.959375*2^29 */
+  crypto_int32 g2_19 = 19 * g2; /* 1.959375*2^30; still ok */
+  crypto_int32 g3_19 = 19 * g3;
+  crypto_int32 g4_19 = 19 * g4;
+  crypto_int32 g5_19 = 19 * g5;
+  crypto_int32 g6_19 = 19 * g6;
+  crypto_int32 g7_19 = 19 * g7;
+  crypto_int32 g8_19 = 19 * g8;
+  crypto_int32 g9_19 = 19 * g9;
+  crypto_int32 f1_2 = 2 * f1;
+  crypto_int32 f3_2 = 2 * f3;
+  crypto_int32 f5_2 = 2 * f5;
+  crypto_int32 f7_2 = 2 * f7;
+  crypto_int32 f9_2 = 2 * f9;
+  crypto_int64 f0g0    = f0   * (crypto_int64) g0;
+  crypto_int64 f0g1    = f0   * (crypto_int64) g1;
+  crypto_int64 f0g2    = f0   * (crypto_int64) g2;
+  crypto_int64 f0g3    = f0   * (crypto_int64) g3;
+  crypto_int64 f0g4    = f0   * (crypto_int64) g4;
+  crypto_int64 f0g5    = f0   * (crypto_int64) g5;
+  crypto_int64 f0g6    = f0   * (crypto_int64) g6;
+  crypto_int64 f0g7    = f0   * (crypto_int64) g7;
+  crypto_int64 f0g8    = f0   * (crypto_int64) g8;
+  crypto_int64 f0g9    = f0   * (crypto_int64) g9;
+  crypto_int64 f1g0    = f1   * (crypto_int64) g0;
+  crypto_int64 f1g1_2  = f1_2 * (crypto_int64) g1;
+  crypto_int64 f1g2    = f1   * (crypto_int64) g2;
+  crypto_int64 f1g3_2  = f1_2 * (crypto_int64) g3;
+  crypto_int64 f1g4    = f1   * (crypto_int64) g4;
+  crypto_int64 f1g5_2  = f1_2 * (crypto_int64) g5;
+  crypto_int64 f1g6    = f1   * (crypto_int64) g6;
+  crypto_int64 f1g7_2  = f1_2 * (crypto_int64) g7;
+  crypto_int64 f1g8    = f1   * (crypto_int64) g8;
+  crypto_int64 f1g9_38 = f1_2 * (crypto_int64) g9_19;
+  crypto_int64 f2g0    = f2   * (crypto_int64) g0;
+  crypto_int64 f2g1    = f2   * (crypto_int64) g1;
+  crypto_int64 f2g2    = f2   * (crypto_int64) g2;
+  crypto_int64 f2g3    = f2   * (crypto_int64) g3;
+  crypto_int64 f2g4    = f2   * (crypto_int64) g4;
+  crypto_int64 f2g5    = f2   * (crypto_int64) g5;
+  crypto_int64 f2g6    = f2   * (crypto_int64) g6;
+  crypto_int64 f2g7    = f2   * (crypto_int64) g7;
+  crypto_int64 f2g8_19 = f2   * (crypto_int64) g8_19;
+  crypto_int64 f2g9_19 = f2   * (crypto_int64) g9_19;
+  crypto_int64 f3g0    = f3   * (crypto_int64) g0;
+  crypto_int64 f3g1_2  = f3_2 * (crypto_int64) g1;
+  crypto_int64 f3g2    = f3   * (crypto_int64) g2;
+  crypto_int64 f3g3_2  = f3_2 * (crypto_int64) g3;
+  crypto_int64 f3g4    = f3   * (crypto_int64) g4;
+  crypto_int64 f3g5_2  = f3_2 * (crypto_int64) g5;
+  crypto_int64 f3g6    = f3   * (crypto_int64) g6;
+  crypto_int64 f3g7_38 = f3_2 * (crypto_int64) g7_19;
+  crypto_int64 f3g8_19 = f3   * (crypto_int64) g8_19;
+  crypto_int64 f3g9_38 = f3_2 * (crypto_int64) g9_19;
+  crypto_int64 f4g0    = f4   * (crypto_int64) g0;
+  crypto_int64 f4g1    = f4   * (crypto_int64) g1;
+  crypto_int64 f4g2    = f4   * (crypto_int64) g2;
+  crypto_int64 f4g3    = f4   * (crypto_int64) g3;
+  crypto_int64 f4g4    = f4   * (crypto_int64) g4;
+  crypto_int64 f4g5    = f4   * (crypto_int64) g5;
+  crypto_int64 f4g6_19 = f4   * (crypto_int64) g6_19;
+  crypto_int64 f4g7_19 = f4   * (crypto_int64) g7_19;
+  crypto_int64 f4g8_19 = f4   * (crypto_int64) g8_19;
+  crypto_int64 f4g9_19 = f4   * (crypto_int64) g9_19;
+  crypto_int64 f5g0    = f5   * (crypto_int64) g0;
+  crypto_int64 f5g1_2  = f5_2 * (crypto_int64) g1;
+  crypto_int64 f5g2    = f5   * (crypto_int64) g2;
+  crypto_int64 f5g3_2  = f5_2 * (crypto_int64) g3;
+  crypto_int64 f5g4    = f5   * (crypto_int64) g4;
+  crypto_int64 f5g5_38 = f5_2 * (crypto_int64) g5_19;
+  crypto_int64 f5g6_19 = f5   * (crypto_int64) g6_19;
+  crypto_int64 f5g7_38 = f5_2 * (crypto_int64) g7_19;
+  crypto_int64 f5g8_19 = f5   * (crypto_int64) g8_19;
+  crypto_int64 f5g9_38 = f5_2 * (crypto_int64) g9_19;
+  crypto_int64 f6g0    = f6   * (crypto_int64) g0;
+  crypto_int64 f6g1    = f6   * (crypto_int64) g1;
+  crypto_int64 f6g2    = f6   * (crypto_int64) g2;
+  crypto_int64 f6g3    = f6   * (crypto_int64) g3;
+  crypto_int64 f6g4_19 = f6   * (crypto_int64) g4_19;
+  crypto_int64 f6g5_19 = f6   * (crypto_int64) g5_19;
+  crypto_int64 f6g6_19 = f6   * (crypto_int64) g6_19;
+  crypto_int64 f6g7_19 = f6   * (crypto_int64) g7_19;
+  crypto_int64 f6g8_19 = f6   * (crypto_int64) g8_19;
+  crypto_int64 f6g9_19 = f6   * (crypto_int64) g9_19;
+  crypto_int64 f7g0    = f7   * (crypto_int64) g0;
+  crypto_int64 f7g1_2  = f7_2 * (crypto_int64) g1;
+  crypto_int64 f7g2    = f7   * (crypto_int64) g2;
+  crypto_int64 f7g3_38 = f7_2 * (crypto_int64) g3_19;
+  crypto_int64 f7g4_19 = f7   * (crypto_int64) g4_19;
+  crypto_int64 f7g5_38 = f7_2 * (crypto_int64) g5_19;
+  crypto_int64 f7g6_19 = f7   * (crypto_int64) g6_19;
+  crypto_int64 f7g7_38 = f7_2 * (crypto_int64) g7_19;
+  crypto_int64 f7g8_19 = f7   * (crypto_int64) g8_19;
+  crypto_int64 f7g9_38 = f7_2 * (crypto_int64) g9_19;
+  crypto_int64 f8g0    = f8   * (crypto_int64) g0;
+  crypto_int64 f8g1    = f8   * (crypto_int64) g1;
+  crypto_int64 f8g2_19 = f8   * (crypto_int64) g2_19;
+  crypto_int64 f8g3_19 = f8   * (crypto_int64) g3_19;
+  crypto_int64 f8g4_19 = f8   * (crypto_int64) g4_19;
+  crypto_int64 f8g5_19 = f8   * (crypto_int64) g5_19;
+  crypto_int64 f8g6_19 = f8   * (crypto_int64) g6_19;
+  crypto_int64 f8g7_19 = f8   * (crypto_int64) g7_19;
+  crypto_int64 f8g8_19 = f8   * (crypto_int64) g8_19;
+  crypto_int64 f8g9_19 = f8   * (crypto_int64) g9_19;
+  crypto_int64 f9g0    = f9   * (crypto_int64) g0;
+  crypto_int64 f9g1_38 = f9_2 * (crypto_int64) g1_19;
+  crypto_int64 f9g2_19 = f9   * (crypto_int64) g2_19;
+  crypto_int64 f9g3_38 = f9_2 * (crypto_int64) g3_19;
+  crypto_int64 f9g4_19 = f9   * (crypto_int64) g4_19;
+  crypto_int64 f9g5_38 = f9_2 * (crypto_int64) g5_19;
+  crypto_int64 f9g6_19 = f9   * (crypto_int64) g6_19;
+  crypto_int64 f9g7_38 = f9_2 * (crypto_int64) g7_19;
+  crypto_int64 f9g8_19 = f9   * (crypto_int64) g8_19;
+  crypto_int64 f9g9_38 = f9_2 * (crypto_int64) g9_19;
+  crypto_int64 h0 = f0g0+f1g9_38+f2g8_19+f3g7_38+f4g6_19+f5g5_38+f6g4_19+f7g3_38+f8g2_19+f9g1_38;
+  crypto_int64 h1 = f0g1+f1g0   +f2g9_19+f3g8_19+f4g7_19+f5g6_19+f6g5_19+f7g4_19+f8g3_19+f9g2_19;
+  crypto_int64 h2 = f0g2+f1g1_2 +f2g0   +f3g9_38+f4g8_19+f5g7_38+f6g6_19+f7g5_38+f8g4_19+f9g3_38;
+  crypto_int64 h3 = f0g3+f1g2   +f2g1   +f3g0   +f4g9_19+f5g8_19+f6g7_19+f7g6_19+f8g5_19+f9g4_19;
+  crypto_int64 h4 = f0g4+f1g3_2 +f2g2   +f3g1_2 +f4g0   +f5g9_38+f6g8_19+f7g7_38+f8g6_19+f9g5_38;
+  crypto_int64 h5 = f0g5+f1g4   +f2g3   +f3g2   +f4g1   +f5g0   +f6g9_19+f7g8_19+f8g7_19+f9g6_19;
+  crypto_int64 h6 = f0g6+f1g5_2 +f2g4   +f3g3_2 +f4g2   +f5g1_2 +f6g0   +f7g9_38+f8g8_19+f9g7_38;
+  crypto_int64 h7 = f0g7+f1g6   +f2g5   +f3g4   +f4g3   +f5g2   +f6g1   +f7g0   +f8g9_19+f9g8_19;
+  crypto_int64 h8 = f0g8+f1g7_2 +f2g6   +f3g5_2 +f4g4   +f5g3_2 +f6g2   +f7g1_2 +f8g0   +f9g9_38;
+  crypto_int64 h9 = f0g9+f1g8   +f2g7   +f3g6   +f4g5   +f5g4   +f6g3   +f7g2   +f8g1   +f9g0   ;
+  crypto_int64 carry0;
+  crypto_int64 carry1;
+  crypto_int64 carry2;
+  crypto_int64 carry3;
+  crypto_int64 carry4;
+  crypto_int64 carry5;
+  crypto_int64 carry6;
+  crypto_int64 carry7;
+  crypto_int64 carry8;
+  crypto_int64 carry9;
+
+  /*
+  |h0| <= (1.65*1.65*2^52*(1+19+19+19+19)+1.65*1.65*2^50*(38+38+38+38+38))
+    i.e. |h0| <= 1.4*2^60; narrower ranges for h2, h4, h6, h8
+  |h1| <= (1.65*1.65*2^51*(1+1+19+19+19+19+19+19+19+19))
+    i.e. |h1| <= 1.7*2^59; narrower ranges for h3, h5, h7, h9
+  */
+
+  carry0 = (h0 + (crypto_int64) (1<<25)) >> 26; h1 += carry0; h0 -= carry0 << 26;
+  carry4 = (h4 + (crypto_int64) (1<<25)) >> 26; h5 += carry4; h4 -= carry4 << 26;
+  /* |h0| <= 2^25 */
+  /* |h4| <= 2^25 */
+  /* |h1| <= 1.71*2^59 */
+  /* |h5| <= 1.71*2^59 */
+
+  carry1 = (h1 + (crypto_int64) (1<<24)) >> 25; h2 += carry1; h1 -= carry1 << 25;
+  carry5 = (h5 + (crypto_int64) (1<<24)) >> 25; h6 += carry5; h5 -= carry5 << 25;
+  /* |h1| <= 2^24; from now on fits into int32 */
+  /* |h5| <= 2^24; from now on fits into int32 */
+  /* |h2| <= 1.41*2^60 */
+  /* |h6| <= 1.41*2^60 */
+
+  carry2 = (h2 + (crypto_int64) (1<<25)) >> 26; h3 += carry2; h2 -= carry2 << 26;
+  carry6 = (h6 + (crypto_int64) (1<<25)) >> 26; h7 += carry6; h6 -= carry6 << 26;
+  /* |h2| <= 2^25; from now on fits into int32 unchanged */
+  /* |h6| <= 2^25; from now on fits into int32 unchanged */
+  /* |h3| <= 1.71*2^59 */
+  /* |h7| <= 1.71*2^59 */
+
+  carry3 = (h3 + (crypto_int64) (1<<24)) >> 25; h4 += carry3; h3 -= carry3 << 25;
+  carry7 = (h7 + (crypto_int64) (1<<24)) >> 25; h8 += carry7; h7 -= carry7 << 25;
+  /* |h3| <= 2^24; from now on fits into int32 unchanged */
+  /* |h7| <= 2^24; from now on fits into int32 unchanged */
+  /* |h4| <= 1.72*2^34 */
+  /* |h8| <= 1.41*2^60 */
+
+  carry4 = (h4 + (crypto_int64) (1<<25)) >> 26; h5 += carry4; h4 -= carry4 << 26;
+  carry8 = (h8 + (crypto_int64) (1<<25)) >> 26; h9 += carry8; h8 -= carry8 << 26;
+  /* |h4| <= 2^25; from now on fits into int32 unchanged */
+  /* |h8| <= 2^25; from now on fits into int32 unchanged */
+  /* |h5| <= 1.01*2^24 */
+  /* |h9| <= 1.71*2^59 */
+
+  carry9 = (h9 + (crypto_int64) (1<<24)) >> 25; h0 += carry9 * 19; h9 -= carry9 << 25;
+  /* |h9| <= 2^24; from now on fits into int32 unchanged */
+  /* |h0| <= 1.1*2^39 */
+
+  carry0 = (h0 + (crypto_int64) (1<<25)) >> 26; h1 += carry0; h0 -= carry0 << 26;
+  /* |h0| <= 2^25; from now on fits into int32 unchanged */
+  /* |h1| <= 1.01*2^24 */
+
+  h[0] = h0;
+  h[1] = h1;
+  h[2] = h2;
+  h[3] = h3;
+  h[4] = h4;
+  h[5] = h5;
+  h[6] = h6;
+  h[7] = h7;
+  h[8] = h8;
+  h[9] = h9;
+}
diff --git a/libmariadb/plugins/auth/ref10/fe_neg.c b/libmariadb/plugins/auth/ref10/fe_neg.c
new file mode 100644
index 00000000..2078ce52
--- /dev/null
+++ b/libmariadb/plugins/auth/ref10/fe_neg.c
@@ -0,0 +1,45 @@
+#include "fe.h"
+
+/*
+h = -f
+
+Preconditions:
+   |f| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc.
+
+Postconditions:
+   |h| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc.
+*/
+
+void fe_neg(fe h,const fe f)
+{
+  crypto_int32 f0 = f[0];
+  crypto_int32 f1 = f[1];
+  crypto_int32 f2 = f[2];
+  crypto_int32 f3 = f[3];
+  crypto_int32 f4 = f[4];
+  crypto_int32 f5 = f[5];
+  crypto_int32 f6 = f[6];
+  crypto_int32 f7 = f[7];
+  crypto_int32 f8 = f[8];
+  crypto_int32 f9 = f[9];
+  crypto_int32 h0 = -f0;
+  crypto_int32 h1 = -f1;
+  crypto_int32 h2 = -f2;
+  crypto_int32 h3 = -f3;
+  crypto_int32 h4 = -f4;
+  crypto_int32 h5 = -f5;
+  crypto_int32 h6 = -f6;
+  crypto_int32 h7 = -f7;
+  crypto_int32 h8 = -f8;
+  crypto_int32 h9 = -f9;
+  h[0] = h0;
+  h[1] = h1;
+  h[2] = h2;
+  h[3] = h3;
+  h[4] = h4;
+  h[5] = h5;
+  h[6] = h6;
+  h[7] = h7;
+  h[8] = h8;
+  h[9] = h9;
+}
diff --git a/libmariadb/plugins/auth/ref10/fe_pow22523.c b/libmariadb/plugins/auth/ref10/fe_pow22523.c
new file mode 100644
index 00000000..56675a59
--- /dev/null
+++ b/libmariadb/plugins/auth/ref10/fe_pow22523.c
@@ -0,0 +1,13 @@
+#include "fe.h"
+
+void fe_pow22523(fe out,const fe z)
+{
+  fe t0;
+  fe t1;
+  fe t2;
+  int i;
+
+#include "pow22523.h"
+
+  return;
+}
diff --git a/libmariadb/plugins/auth/ref10/fe_sq.c b/libmariadb/plugins/auth/ref10/fe_sq.c
new file mode 100644
index 00000000..8dd11984
--- /dev/null
+++ b/libmariadb/plugins/auth/ref10/fe_sq.c
@@ -0,0 +1,149 @@
+#include "fe.h"
+#include "crypto_int64.h"
+
+/*
+h = f * f
+Can overlap h with f.
+
+Preconditions:
+   |f| bounded by 1.65*2^26,1.65*2^25,1.65*2^26,1.65*2^25,etc.
+
+Postconditions:
+   |h| bounded by 1.01*2^25,1.01*2^24,1.01*2^25,1.01*2^24,etc.
+*/
+
+/*
+See fe_mul.c for discussion of implementation strategy.
+*/
+
+void fe_sq(fe h,const fe f)
+{
+  crypto_int32 f0 = f[0];
+  crypto_int32 f1 = f[1];
+  crypto_int32 f2 = f[2];
+  crypto_int32 f3 = f[3];
+  crypto_int32 f4 = f[4];
+  crypto_int32 f5 = f[5];
+  crypto_int32 f6 = f[6];
+  crypto_int32 f7 = f[7];
+  crypto_int32 f8 = f[8];
+  crypto_int32 f9 = f[9];
+  crypto_int32 f0_2 = 2 * f0;
+  crypto_int32 f1_2 = 2 * f1;
+  crypto_int32 f2_2 = 2 * f2;
+  crypto_int32 f3_2 = 2 * f3;
+  crypto_int32 f4_2 = 2 * f4;
+  crypto_int32 f5_2 = 2 * f5;
+  crypto_int32 f6_2 = 2 * f6;
+  crypto_int32 f7_2 = 2 * f7;
+  crypto_int32 f5_38 = 38 * f5; /* 1.959375*2^30 */
+  crypto_int32 f6_19 = 19 * f6; /* 1.959375*2^30 */
+  crypto_int32 f7_38 = 38 * f7; /* 1.959375*2^30 */
+  crypto_int32 f8_19 = 19 * f8; /* 1.959375*2^30 */
+  crypto_int32 f9_38 = 38 * f9; /* 1.959375*2^30 */
+  crypto_int64 f0f0    = f0   * (crypto_int64) f0;
+  crypto_int64 f0f1_2  = f0_2 * (crypto_int64) f1;
+  crypto_int64 f0f2_2  = f0_2 * (crypto_int64) f2;
+  crypto_int64 f0f3_2  = f0_2 * (crypto_int64) f3;
+  crypto_int64 f0f4_2  = f0_2 * (crypto_int64) f4;
+  crypto_int64 f0f5_2  = f0_2 * (crypto_int64) f5;
+  crypto_int64 f0f6_2  = f0_2 * (crypto_int64) f6;
+  crypto_int64 f0f7_2  = f0_2 * (crypto_int64) f7;
+  crypto_int64 f0f8_2  = f0_2 * (crypto_int64) f8;
+  crypto_int64 f0f9_2  = f0_2 * (crypto_int64) f9;
+  crypto_int64 f1f1_2  = f1_2 * (crypto_int64) f1;
+  crypto_int64 f1f2_2  = f1_2 * (crypto_int64) f2;
+  crypto_int64 f1f3_4  = f1_2 * (crypto_int64) f3_2;
+  crypto_int64 f1f4_2  = f1_2 * (crypto_int64) f4;
+  crypto_int64 f1f5_4  = f1_2 * (crypto_int64) f5_2;
+  crypto_int64 f1f6_2  = f1_2 * (crypto_int64) f6;
+  crypto_int64 f1f7_4  = f1_2 * (crypto_int64) f7_2;
+  crypto_int64 f1f8_2  = f1_2 * (crypto_int64) f8;
+  crypto_int64 f1f9_76 = f1_2 * (crypto_int64) f9_38;
+  crypto_int64 f2f2    = f2   * (crypto_int64) f2;
+  crypto_int64 f2f3_2  = f2_2 * (crypto_int64) f3;
+  crypto_int64 f2f4_2  = f2_2 * (crypto_int64) f4;
+  crypto_int64 f2f5_2  = f2_2 * (crypto_int64) f5;
+  crypto_int64 f2f6_2  = f2_2 * (crypto_int64) f6;
+  crypto_int64 f2f7_2  = f2_2 * (crypto_int64) f7;
+  crypto_int64 f2f8_38 = f2_2 * (crypto_int64) f8_19;
+  crypto_int64 f2f9_38 = f2   * (crypto_int64) f9_38;
+  crypto_int64 f3f3_2  = f3_2 * (crypto_int64) f3;
+  crypto_int64 f3f4_2  = f3_2 * (crypto_int64) f4;
+  crypto_int64 f3f5_4  = f3_2 * (crypto_int64) f5_2;
+  crypto_int64 f3f6_2  = f3_2 * (crypto_int64) f6;
+  crypto_int64 f3f7_76 = f3_2 * (crypto_int64) f7_38;
+  crypto_int64 f3f8_38 = f3_2 * (crypto_int64) f8_19;
+  crypto_int64 f3f9_76 = f3_2 * (crypto_int64) f9_38;
+  crypto_int64 f4f4    = f4   * (crypto_int64) f4;
+  crypto_int64 f4f5_2  = f4_2 * (crypto_int64) f5;
+  crypto_int64 f4f6_38 = f4_2 * (crypto_int64) f6_19;
+  crypto_int64 f4f7_38 = f4   * (crypto_int64) f7_38;
+  crypto_int64 f4f8_38 = f4_2 * (crypto_int64) f8_19;
+  crypto_int64 f4f9_38 = f4   * (crypto_int64) f9_38;
+  crypto_int64 f5f5_38 = f5   * (crypto_int64) f5_38;
+  crypto_int64 f5f6_38 = f5_2 * (crypto_int64) f6_19;
+  crypto_int64 f5f7_76 = f5_2 * (crypto_int64) f7_38;
+  crypto_int64 f5f8_38 = f5_2 * (crypto_int64) f8_19;
+  crypto_int64 f5f9_76 = f5_2 * (crypto_int64) f9_38;
+  crypto_int64 f6f6_19 = f6   * (crypto_int64) f6_19;
+  crypto_int64 f6f7_38 = f6   * (crypto_int64) f7_38;
+  crypto_int64 f6f8_38 = f6_2 * (crypto_int64) f8_19;
+  crypto_int64 f6f9_38 = f6   * (crypto_int64) f9_38;
+  crypto_int64 f7f7_38 = f7   * (crypto_int64) f7_38;
+  crypto_int64 f7f8_38 = f7_2 * (crypto_int64) f8_19;
+  crypto_int64 f7f9_76 = f7_2 * (crypto_int64) f9_38;
+  crypto_int64 f8f8_19 = f8   * (crypto_int64) f8_19;
+  crypto_int64 f8f9_38 = f8   * (crypto_int64) f9_38;
+  crypto_int64 f9f9_38 = f9   * (crypto_int64) f9_38;
+  crypto_int64 h0 = f0f0  +f1f9_76+f2f8_38+f3f7_76+f4f6_38+f5f5_38;
+  crypto_int64 h1 = f0f1_2+f2f9_38+f3f8_38+f4f7_38+f5f6_38;
+  crypto_int64 h2 = f0f2_2+f1f1_2 +f3f9_76+f4f8_38+f5f7_76+f6f6_19;
+  crypto_int64 h3 = f0f3_2+f1f2_2 +f4f9_38+f5f8_38+f6f7_38;
+  crypto_int64 h4 = f0f4_2+f1f3_4 +f2f2   +f5f9_76+f6f8_38+f7f7_38;
+  crypto_int64 h5 = f0f5_2+f1f4_2 +f2f3_2 +f6f9_38+f7f8_38;
+  crypto_int64 h6 = f0f6_2+f1f5_4 +f2f4_2 +f3f3_2 +f7f9_76+f8f8_19;
+  crypto_int64 h7 = f0f7_2+f1f6_2 +f2f5_2 +f3f4_2 +f8f9_38;
+  crypto_int64 h8 = f0f8_2+f1f7_4 +f2f6_2 +f3f5_4 +f4f4   +f9f9_38;
+  crypto_int64 h9 = f0f9_2+f1f8_2 +f2f7_2 +f3f6_2 +f4f5_2;
+  crypto_int64 carry0;
+  crypto_int64 carry1;
+  crypto_int64 carry2;
+  crypto_int64 carry3;
+  crypto_int64 carry4;
+  crypto_int64 carry5;
+  crypto_int64 carry6;
+  crypto_int64 carry7;
+  crypto_int64 carry8;
+  crypto_int64 carry9;
+
+  carry0 = (h0 + (crypto_int64) (1<<25)) >> 26; h1 += carry0; h0 -= carry0 << 26;
+  carry4 = (h4 + (crypto_int64) (1<<25)) >> 26; h5 += carry4; h4 -= carry4 << 26;
+
+  carry1 = (h1 + (crypto_int64) (1<<24)) >> 25; h2 += carry1; h1 -= carry1 << 25;
+  carry5 = (h5 + (crypto_int64) (1<<24)) >> 25; h6 += carry5; h5 -= carry5 << 25;
+
+  carry2 = (h2 + (crypto_int64) (1<<25)) >> 26; h3 += carry2; h2 -= carry2 << 26;
+  carry6 = (h6 + (crypto_int64) (1<<25)) >> 26; h7 += carry6; h6 -= carry6 << 26;
+
+  carry3 = (h3 + (crypto_int64) (1<<24)) >> 25; h4 += carry3; h3 -= carry3 << 25;
+  carry7 = (h7 + (crypto_int64) (1<<24)) >> 25; h8 += carry7; h7 -= carry7 << 25;
+
+  carry4 = (h4 + (crypto_int64) (1<<25)) >> 26; h5 += carry4; h4 -= carry4 << 26;
+  carry8 = (h8 + (crypto_int64) (1<<25)) >> 26; h9 += carry8; h8 -= carry8 << 26;
+
+  carry9 = (h9 + (crypto_int64) (1<<24)) >> 25; h0 += carry9 * 19; h9 -= carry9 << 25;
+
+  carry0 = (h0 + (crypto_int64) (1<<25)) >> 26; h1 += carry0; h0 -= carry0 << 26;
+
+  h[0] = h0;
+  h[1] = h1;
+  h[2] = h2;
+  h[3] = h3;
+  h[4] = h4;
+  h[5] = h5;
+  h[6] = h6;
+  h[7] = h7;
+  h[8] = h8;
+  h[9] = h9;
+}
diff --git a/libmariadb/plugins/auth/ref10/fe_sq2.c b/libmariadb/plugins/auth/ref10/fe_sq2.c
new file mode 100644
index 00000000..026ed3aa
--- /dev/null
+++ b/libmariadb/plugins/auth/ref10/fe_sq2.c
@@ -0,0 +1,160 @@
+#include "fe.h"
+#include "crypto_int64.h"
+
+/*
+h = 2 * f * f
+Can overlap h with f.
+
+Preconditions:
+   |f| bounded by 1.65*2^26,1.65*2^25,1.65*2^26,1.65*2^25,etc.
+
+Postconditions:
+   |h| bounded by 1.01*2^25,1.01*2^24,1.01*2^25,1.01*2^24,etc.
+*/
+
+/*
+See fe_mul.c for discussion of implementation strategy.
+*/
+
+void fe_sq2(fe h,const fe f)
+{
+  crypto_int32 f0 = f[0];
+  crypto_int32 f1 = f[1];
+  crypto_int32 f2 = f[2];
+  crypto_int32 f3 = f[3];
+  crypto_int32 f4 = f[4];
+  crypto_int32 f5 = f[5];
+  crypto_int32 f6 = f[6];
+  crypto_int32 f7 = f[7];
+  crypto_int32 f8 = f[8];
+  crypto_int32 f9 = f[9];
+  crypto_int32 f0_2 = 2 * f0;
+  crypto_int32 f1_2 = 2 * f1;
+  crypto_int32 f2_2 = 2 * f2;
+  crypto_int32 f3_2 = 2 * f3;
+  crypto_int32 f4_2 = 2 * f4;
+  crypto_int32 f5_2 = 2 * f5;
+  crypto_int32 f6_2 = 2 * f6;
+  crypto_int32 f7_2 = 2 * f7;
+  crypto_int32 f5_38 = 38 * f5; /* 1.959375*2^30 */
+  crypto_int32 f6_19 = 19 * f6; /* 1.959375*2^30 */
+  crypto_int32 f7_38 = 38 * f7; /* 1.959375*2^30 */
+  crypto_int32 f8_19 = 19 * f8; /* 1.959375*2^30 */
+  crypto_int32 f9_38 = 38 * f9; /* 1.959375*2^30 */
+  crypto_int64 f0f0    = f0   * (crypto_int64) f0;
+  crypto_int64 f0f1_2  = f0_2 * (crypto_int64) f1;
+  crypto_int64 f0f2_2  = f0_2 * (crypto_int64) f2;
+  crypto_int64 f0f3_2  = f0_2 * (crypto_int64) f3;
+  crypto_int64 f0f4_2  = f0_2 * (crypto_int64) f4;
+  crypto_int64 f0f5_2  = f0_2 * (crypto_int64) f5;
+  crypto_int64 f0f6_2  = f0_2 * (crypto_int64) f6;
+  crypto_int64 f0f7_2  = f0_2 * (crypto_int64) f7;
+  crypto_int64 f0f8_2  = f0_2 * (crypto_int64) f8;
+  crypto_int64 f0f9_2  = f0_2 * (crypto_int64) f9;
+  crypto_int64 f1f1_2  = f1_2 * (crypto_int64) f1;
+  crypto_int64 f1f2_2  = f1_2 * (crypto_int64) f2;
+  crypto_int64 f1f3_4  = f1_2 * (crypto_int64) f3_2;
+  crypto_int64 f1f4_2  = f1_2 * (crypto_int64) f4;
+  crypto_int64 f1f5_4  = f1_2 * (crypto_int64) f5_2;
+  crypto_int64 f1f6_2  = f1_2 * (crypto_int64) f6;
+  crypto_int64 f1f7_4  = f1_2 * (crypto_int64) f7_2;
+  crypto_int64 f1f8_2  = f1_2 * (crypto_int64) f8;
+  crypto_int64 f1f9_76 = f1_2 * (crypto_int64) f9_38;
+  crypto_int64 f2f2    = f2   * (crypto_int64) f2;
+  crypto_int64 f2f3_2  = f2_2 * (crypto_int64) f3;
+  crypto_int64 f2f4_2  = f2_2 * (crypto_int64) f4;
+  crypto_int64 f2f5_2  = f2_2 * (crypto_int64) f5;
+  crypto_int64 f2f6_2  = f2_2 * (crypto_int64) f6;
+  crypto_int64 f2f7_2  = f2_2 * (crypto_int64) f7;
+  crypto_int64 f2f8_38 = f2_2 * (crypto_int64) f8_19;
+  crypto_int64 f2f9_38 = f2   * (crypto_int64) f9_38;
+  crypto_int64 f3f3_2  = f3_2 * (crypto_int64) f3;
+  crypto_int64 f3f4_2  = f3_2 * (crypto_int64) f4;
+  crypto_int64 f3f5_4  = f3_2 * (crypto_int64) f5_2;
+  crypto_int64 f3f6_2  = f3_2 * (crypto_int64) f6;
+  crypto_int64 f3f7_76 = f3_2 * (crypto_int64) f7_38;
+  crypto_int64 f3f8_38 = f3_2 * (crypto_int64) f8_19;
+  crypto_int64 f3f9_76 = f3_2 * (crypto_int64) f9_38;
+  crypto_int64 f4f4    = f4   * (crypto_int64) f4;
+  crypto_int64 f4f5_2  = f4_2 * (crypto_int64) f5;
+  crypto_int64 f4f6_38 = f4_2 * (crypto_int64) f6_19;
+  crypto_int64 f4f7_38 = f4   * (crypto_int64) f7_38;
+  crypto_int64 f4f8_38 = f4_2 * (crypto_int64) f8_19;
+  crypto_int64 f4f9_38 = f4   * (crypto_int64) f9_38;
+  crypto_int64 f5f5_38 = f5   * (crypto_int64) f5_38;
+  crypto_int64 f5f6_38 = f5_2 * (crypto_int64) f6_19;
+  crypto_int64 f5f7_76 = f5_2 * (crypto_int64) f7_38;
+  crypto_int64 f5f8_38 = f5_2 * (crypto_int64) f8_19;
+  crypto_int64 f5f9_76 = f5_2 * (crypto_int64) f9_38;
+  crypto_int64 f6f6_19 = f6   * (crypto_int64) f6_19;
+  crypto_int64 f6f7_38 = f6   * (crypto_int64) f7_38;
+  crypto_int64 f6f8_38 = f6_2 * (crypto_int64) f8_19;
+  crypto_int64 f6f9_38 = f6   * (crypto_int64) f9_38;
+  crypto_int64 f7f7_38 = f7   * (crypto_int64) f7_38;
+  crypto_int64 f7f8_38 = f7_2 * (crypto_int64) f8_19;
+  crypto_int64 f7f9_76 = f7_2 * (crypto_int64) f9_38;
+  crypto_int64 f8f8_19 = f8   * (crypto_int64) f8_19;
+  crypto_int64 f8f9_38 = f8   * (crypto_int64) f9_38;
+  crypto_int64 f9f9_38 = f9   * (crypto_int64) f9_38;
+  crypto_int64 h0 = f0f0  +f1f9_76+f2f8_38+f3f7_76+f4f6_38+f5f5_38;
+  crypto_int64 h1 = f0f1_2+f2f9_38+f3f8_38+f4f7_38+f5f6_38;
+  crypto_int64 h2 = f0f2_2+f1f1_2 +f3f9_76+f4f8_38+f5f7_76+f6f6_19;
+  crypto_int64 h3 = f0f3_2+f1f2_2 +f4f9_38+f5f8_38+f6f7_38;
+  crypto_int64 h4 = f0f4_2+f1f3_4 +f2f2   +f5f9_76+f6f8_38+f7f7_38;
+  crypto_int64 h5 = f0f5_2+f1f4_2 +f2f3_2 +f6f9_38+f7f8_38;
+  crypto_int64 h6 = f0f6_2+f1f5_4 +f2f4_2 +f3f3_2 +f7f9_76+f8f8_19;
+  crypto_int64 h7 = f0f7_2+f1f6_2 +f2f5_2 +f3f4_2 +f8f9_38;
+  crypto_int64 h8 = f0f8_2+f1f7_4 +f2f6_2 +f3f5_4 +f4f4   +f9f9_38;
+  crypto_int64 h9 = f0f9_2+f1f8_2 +f2f7_2 +f3f6_2 +f4f5_2;
+  crypto_int64 carry0;
+  crypto_int64 carry1;
+  crypto_int64 carry2;
+  crypto_int64 carry3;
+  crypto_int64 carry4;
+  crypto_int64 carry5;
+  crypto_int64 carry6;
+  crypto_int64 carry7;
+  crypto_int64 carry8;
+  crypto_int64 carry9;
+
+  h0 += h0;
+  h1 += h1;
+  h2 += h2;
+  h3 += h3;
+  h4 += h4;
+  h5 += h5;
+  h6 += h6;
+  h7 += h7;
+  h8 += h8;
+  h9 += h9;
+
+  carry0 = (h0 + (crypto_int64) (1<<25)) >> 26; h1 += carry0; h0 -= carry0 << 26;
+  carry4 = (h4 + (crypto_int64) (1<<25)) >> 26; h5 += carry4; h4 -= carry4 << 26;
+
+  carry1 = (h1 + (crypto_int64) (1<<24)) >> 25; h2 += carry1; h1 -= carry1 << 25;
+  carry5 = (h5 + (crypto_int64) (1<<24)) >> 25; h6 += carry5; h5 -= carry5 << 25;
+
+  carry2 = (h2 + (crypto_int64) (1<<25)) >> 26; h3 += carry2; h2 -= carry2 << 26;
+  carry6 = (h6 + (crypto_int64) (1<<25)) >> 26; h7 += carry6; h6 -= carry6 << 26;
+
+  carry3 = (h3 + (crypto_int64) (1<<24)) >> 25; h4 += carry3; h3 -= carry3 << 25;
+  carry7 = (h7 + (crypto_int64) (1<<24)) >> 25; h8 += carry7; h7 -= carry7 << 25;
+
+  carry4 = (h4 + (crypto_int64) (1<<25)) >> 26; h5 += carry4; h4 -= carry4 << 26;
+  carry8 = (h8 + (crypto_int64) (1<<25)) >> 26; h9 += carry8; h8 -= carry8 << 26;
+
+  carry9 = (h9 + (crypto_int64) (1<<24)) >> 25; h0 += carry9 * 19; h9 -= carry9 << 25;
+
+  carry0 = (h0 + (crypto_int64) (1<<25)) >> 26; h1 += carry0; h0 -= carry0 << 26;
+
+  h[0] = h0;
+  h[1] = h1;
+  h[2] = h2;
+  h[3] = h3;
+  h[4] = h4;
+  h[5] = h5;
+  h[6] = h6;
+  h[7] = h7;
+  h[8] = h8;
+  h[9] = h9;
+}
diff --git a/libmariadb/plugins/auth/ref10/fe_sub.c b/libmariadb/plugins/auth/ref10/fe_sub.c
new file mode 100644
index 00000000..6e26b7df
--- /dev/null
+++ b/libmariadb/plugins/auth/ref10/fe_sub.c
@@ -0,0 +1,57 @@
+#include "fe.h"
+
+/*
+h = f - g
+Can overlap h with f or g.
+
+Preconditions:
+   |f| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc.
+   |g| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc.
+
+Postconditions:
+   |h| bounded by 1.1*2^26,1.1*2^25,1.1*2^26,1.1*2^25,etc.
+*/
+
+void fe_sub(fe h,const fe f,const fe g)
+{
+  crypto_int32 f0 = f[0];
+  crypto_int32 f1 = f[1];
+  crypto_int32 f2 = f[2];
+  crypto_int32 f3 = f[3];
+  crypto_int32 f4 = f[4];
+  crypto_int32 f5 = f[5];
+  crypto_int32 f6 = f[6];
+  crypto_int32 f7 = f[7];
+  crypto_int32 f8 = f[8];
+  crypto_int32 f9 = f[9];
+  crypto_int32 g0 = g[0];
+  crypto_int32 g1 = g[1];
+  crypto_int32 g2 = g[2];
+  crypto_int32 g3 = g[3];
+  crypto_int32 g4 = g[4];
+  crypto_int32 g5 = g[5];
+  crypto_int32 g6 = g[6];
+  crypto_int32 g7 = g[7];
+  crypto_int32 g8 = g[8];
+  crypto_int32 g9 = g[9];
+  crypto_int32 h0 = f0 - g0;
+  crypto_int32 h1 = f1 - g1;
+  crypto_int32 h2 = f2 - g2;
+  crypto_int32 h3 = f3 - g3;
+  crypto_int32 h4 = f4 - g4;
+  crypto_int32 h5 = f5 - g5;
+  crypto_int32 h6 = f6 - g6;
+  crypto_int32 h7 = f7 - g7;
+  crypto_int32 h8 = f8 - g8;
+  crypto_int32 h9 = f9 - g9;
+  h[0] = h0;
+  h[1] = h1;
+  h[2] = h2;
+  h[3] = h3;
+  h[4] = h4;
+  h[5] = h5;
+  h[6] = h6;
+  h[7] = h7;
+  h[8] = h8;
+  h[9] = h9;
+}
diff --git a/libmariadb/plugins/auth/ref10/fe_tobytes.c b/libmariadb/plugins/auth/ref10/fe_tobytes.c
new file mode 100644
index 00000000..0a63baf9
--- /dev/null
+++ b/libmariadb/plugins/auth/ref10/fe_tobytes.c
@@ -0,0 +1,119 @@
+#include "fe.h"
+
+/*
+Preconditions:
+  |h| bounded by 1.1*2^26,1.1*2^25,1.1*2^26,1.1*2^25,etc.
+
+Write p=2^255-19; q=floor(h/p).
+Basic claim: q = floor(2^(-255)(h + 19 2^(-25)h9 + 2^(-1))).
+
+Proof:
+  Have |h|<=p so |q|<=1 so |19^2 2^(-255) q|<1/4.
+  Also have |h-2^230 h9|<2^231 so |19 2^(-255)(h-2^230 h9)|<1/4.
+
+  Write y=2^(-1)-19^2 2^(-255)q-19 2^(-255)(h-2^230 h9).
+  Then 0<y<1.
+
+  Write r=h-pq.
+  Have 0<=r<=p-1=2^255-20.
+  Thus 0<=r+19(2^-255)r<r+19(2^-255)2^255<=2^255-1.
+
+  Write x=r+19(2^-255)r+y.
+  Then 0<x<2^255 so floor(2^(-255)x) = 0 so floor(q+2^(-255)x) = q.
+
+  Have q+2^(-255)x = 2^(-255)(h + 19 2^(-25) h9 + 2^(-1))
+  so floor(2^(-255)(h + 19 2^(-25) h9 + 2^(-1))) = q.
+*/
+
+void fe_tobytes(unsigned char *s,const fe h)
+{
+  crypto_int32 h0 = h[0];
+  crypto_int32 h1 = h[1];
+  crypto_int32 h2 = h[2];
+  crypto_int32 h3 = h[3];
+  crypto_int32 h4 = h[4];
+  crypto_int32 h5 = h[5];
+  crypto_int32 h6 = h[6];
+  crypto_int32 h7 = h[7];
+  crypto_int32 h8 = h[8];
+  crypto_int32 h9 = h[9];
+  crypto_int32 q;
+  crypto_int32 carry0;
+  crypto_int32 carry1;
+  crypto_int32 carry2;
+  crypto_int32 carry3;
+  crypto_int32 carry4;
+  crypto_int32 carry5;
+  crypto_int32 carry6;
+  crypto_int32 carry7;
+  crypto_int32 carry8;
+  crypto_int32 carry9;
+
+  q = (19 * h9 + (((crypto_int32) 1) << 24)) >> 25;
+  q = (h0 + q) >> 26;
+  q = (h1 + q) >> 25;
+  q = (h2 + q) >> 26;
+  q = (h3 + q) >> 25;
+  q = (h4 + q) >> 26;
+  q = (h5 + q) >> 25;
+  q = (h6 + q) >> 26;
+  q = (h7 + q) >> 25;
+  q = (h8 + q) >> 26;
+  q = (h9 + q) >> 25;
+
+  /* Goal: Output h-(2^255-19)q, which is between 0 and 2^255-20. */
+  h0 += 19 * q;
+  /* Goal: Output h-2^255 q, which is between 0 and 2^255-20. */
+
+  carry0 = h0 >> 26; h1 += carry0; h0 -= carry0 << 26;
+  carry1 = h1 >> 25; h2 += carry1; h1 -= carry1 << 25;
+  carry2 = h2 >> 26; h3 += carry2; h2 -= carry2 << 26;
+  carry3 = h3 >> 25; h4 += carry3; h3 -= carry3 << 25;
+  carry4 = h4 >> 26; h5 += carry4; h4 -= carry4 << 26;
+  carry5 = h5 >> 25; h6 += carry5; h5 -= carry5 << 25;
+  carry6 = h6 >> 26; h7 += carry6; h6 -= carry6 << 26;
+  carry7 = h7 >> 25; h8 += carry7; h7 -= carry7 << 25;
+  carry8 = h8 >> 26; h9 += carry8; h8 -= carry8 << 26;
+  carry9 = h9 >> 25;               h9 -= carry9 << 25;
+                  /* h10 = carry9 */
+
+  /*
+  Goal: Output h0+...+2^255 h10-2^255 q, which is between 0 and 2^255-20.
+  Have h0+...+2^230 h9 between 0 and 2^255-1;
+  evidently 2^255 h10-2^255 q = 0.
+  Goal: Output h0+...+2^230 h9.
+  */
+
+  s[0] = h0 >> 0;
+  s[1] = h0 >> 8;
+  s[2] = h0 >> 16;
+  s[3] = (h0 >> 24) | (h1 << 2);
+  s[4] = h1 >> 6;
+  s[5] = h1 >> 14;
+  s[6] = (h1 >> 22) | (h2 << 3);
+  s[7] = h2 >> 5;
+  s[8] = h2 >> 13;
+  s[9] = (h2 >> 21) | (h3 << 5);
+  s[10] = h3 >> 3;
+  s[11] = h3 >> 11;
+  s[12] = (h3 >> 19) | (h4 << 6);
+  s[13] = h4 >> 2;
+  s[14] = h4 >> 10;
+  s[15] = h4 >> 18;
+  s[16] = h5 >> 0;
+  s[17] = h5 >> 8;
+  s[18] = h5 >> 16;
+  s[19] = (h5 >> 24) | (h6 << 1);
+  s[20] = h6 >> 7;
+  s[21] = h6 >> 15;
+  s[22] = (h6 >> 23) | (h7 << 3);
+  s[23] = h7 >> 5;
+  s[24] = h7 >> 13;
+  s[25] = (h7 >> 21) | (h8 << 4);
+  s[26] = h8 >> 4;
+  s[27] = h8 >> 12;
+  s[28] = (h8 >> 20) | (h9 << 6);
+  s[29] = h9 >> 2;
+  s[30] = h9 >> 10;
+  s[31] = h9 >> 18;
+}
diff --git a/libmariadb/plugins/auth/ref10/ge.h b/libmariadb/plugins/auth/ref10/ge.h
new file mode 100644
index 00000000..55e95f95
--- /dev/null
+++ b/libmariadb/plugins/auth/ref10/ge.h
@@ -0,0 +1,95 @@
+#ifndef GE_H
+#define GE_H
+
+/*
+ge means group element.
+
+Here the group is the set of pairs (x,y) of field elements (see fe.h)
+satisfying -x^2 + y^2 = 1 + d x^2y^2
+where d = -121665/121666.
+
+Representations:
+  ge_p2 (projective): (X:Y:Z) satisfying x=X/Z, y=Y/Z
+  ge_p3 (extended): (X:Y:Z:T) satisfying x=X/Z, y=Y/Z, XY=ZT
+  ge_p1p1 (completed): ((X:Z),(Y:T)) satisfying x=X/Z, y=Y/T
+  ge_precomp (Duif): (y+x,y-x,2dxy)
+*/
+
+#include "fe.h"
+
+typedef struct {
+  fe X;
+  fe Y;
+  fe Z;
+} ge_p2;
+
+typedef struct {
+  fe X;
+  fe Y;
+  fe Z;
+  fe T;
+} ge_p3;
+
+typedef struct {
+  fe X;
+  fe Y;
+  fe Z;
+  fe T;
+} ge_p1p1;
+
+typedef struct {
+  fe yplusx;
+  fe yminusx;
+  fe xy2d;
+} ge_precomp;
+
+typedef struct {
+  fe YplusX;
+  fe YminusX;
+  fe Z;
+  fe T2d;
+} ge_cached;
+
+#define ge_frombytes_negate_vartime crypto_sign_ed25519_ref10_ge_frombytes_negate_vartime
+#define ge_tobytes crypto_sign_ed25519_ref10_ge_tobytes
+#define ge_p3_tobytes crypto_sign_ed25519_ref10_ge_p3_tobytes
+
+#define ge_p2_0 crypto_sign_ed25519_ref10_ge_p2_0
+#define ge_p3_0 crypto_sign_ed25519_ref10_ge_p3_0
+#define ge_precomp_0 crypto_sign_ed25519_ref10_ge_precomp_0
+#define ge_p3_to_p2 crypto_sign_ed25519_ref10_ge_p3_to_p2
+#define ge_p3_to_cached crypto_sign_ed25519_ref10_ge_p3_to_cached
+#define ge_p1p1_to_p2 crypto_sign_ed25519_ref10_ge_p1p1_to_p2
+#define ge_p1p1_to_p3 crypto_sign_ed25519_ref10_ge_p1p1_to_p3
+#define ge_p2_dbl crypto_sign_ed25519_ref10_ge_p2_dbl
+#define ge_p3_dbl crypto_sign_ed25519_ref10_ge_p3_dbl
+
+#define ge_madd crypto_sign_ed25519_ref10_ge_madd
+#define ge_msub crypto_sign_ed25519_ref10_ge_msub
+#define ge_add crypto_sign_ed25519_ref10_ge_add
+#define ge_sub crypto_sign_ed25519_ref10_ge_sub
+#define ge_scalarmult_base crypto_sign_ed25519_ref10_ge_scalarmult_base
+#define ge_double_scalarmult_vartime crypto_sign_ed25519_ref10_ge_double_scalarmult_vartime
+
+extern void ge_tobytes(unsigned char *,const ge_p2 *);
+extern void ge_p3_tobytes(unsigned char *,const ge_p3 *);
+extern int ge_frombytes_negate_vartime(ge_p3 *,const unsigned char *);
+
+extern void ge_p2_0(ge_p2 *);
+extern void ge_p3_0(ge_p3 *);
+extern void ge_precomp_0(ge_precomp *);
+extern void ge_p3_to_p2(ge_p2 *,const ge_p3 *);
+extern void ge_p3_to_cached(ge_cached *,const ge_p3 *);
+extern void ge_p1p1_to_p2(ge_p2 *,const ge_p1p1 *);
+extern void ge_p1p1_to_p3(ge_p3 *,const ge_p1p1 *);
+extern void ge_p2_dbl(ge_p1p1 *,const ge_p2 *);
+extern void ge_p3_dbl(ge_p1p1 *,const ge_p3 *);
+
+extern void ge_madd(ge_p1p1 *,const ge_p3 *,const ge_precomp *);
+extern void ge_msub(ge_p1p1 *,const ge_p3 *,const ge_precomp *);
+extern void ge_add(ge_p1p1 *,const ge_p3 *,const ge_cached *);
+extern void ge_sub(ge_p1p1 *,const ge_p3 *,const ge_cached *);
+extern void ge_scalarmult_base(ge_p3 *,const unsigned char *);
+extern void ge_double_scalarmult_vartime(ge_p2 *,const unsigned char *,const ge_p3 *,const unsigned char *);
+
+#endif
diff --git a/libmariadb/plugins/auth/ref10/ge_add.c b/libmariadb/plugins/auth/ref10/ge_add.c
new file mode 100644
index 00000000..da7ff5d2
--- /dev/null
+++ b/libmariadb/plugins/auth/ref10/ge_add.c
@@ -0,0 +1,11 @@
+#include "ge.h"
+
+/*
+r = p + q
+*/
+
+void ge_add(ge_p1p1 *r,const ge_p3 *p,const ge_cached *q)
+{
+  fe t0;
+#include "ge_add.h"
+}
diff --git a/libmariadb/plugins/auth/ref10/ge_add.h b/libmariadb/plugins/auth/ref10/ge_add.h
new file mode 100644
index 00000000..7481f8ff
--- /dev/null
+++ b/libmariadb/plugins/auth/ref10/ge_add.h
@@ -0,0 +1,97 @@
+
+/* qhasm: enter ge_add */
+
+/* qhasm: fe X1 */
+
+/* qhasm: fe Y1 */
+
+/* qhasm: fe Z1 */
+
+/* qhasm: fe Z2 */
+
+/* qhasm: fe T1 */
+
+/* qhasm: fe ZZ */
+
+/* qhasm: fe YpX2 */
+
+/* qhasm: fe YmX2 */
+
+/* qhasm: fe T2d2 */
+
+/* qhasm: fe X3 */
+
+/* qhasm: fe Y3 */
+
+/* qhasm: fe Z3 */
+
+/* qhasm: fe T3 */
+
+/* qhasm: fe YpX1 */
+
+/* qhasm: fe YmX1 */
+
+/* qhasm: fe A */
+
+/* qhasm: fe B */
+
+/* qhasm: fe C */
+
+/* qhasm: fe D */
+
+/* qhasm: YpX1 = Y1+X1 */
+/* asm 1: fe_add(>YpX1=fe#1,<Y1=fe#12,<X1=fe#11); */
+/* asm 2: fe_add(>YpX1=r->X,<Y1=p->Y,<X1=p->X); */
+fe_add(r->X,p->Y,p->X);
+
+/* qhasm: YmX1 = Y1-X1 */
+/* asm 1: fe_sub(>YmX1=fe#2,<Y1=fe#12,<X1=fe#11); */
+/* asm 2: fe_sub(>YmX1=r->Y,<Y1=p->Y,<X1=p->X); */
+fe_sub(r->Y,p->Y,p->X);
+
+/* qhasm: A = YpX1*YpX2 */
+/* asm 1: fe_mul(>A=fe#3,<YpX1=fe#1,<YpX2=fe#15); */
+/* asm 2: fe_mul(>A=r->Z,<YpX1=r->X,<YpX2=q->YplusX); */
+fe_mul(r->Z,r->X,q->YplusX);
+
+/* qhasm: B = YmX1*YmX2 */
+/* asm 1: fe_mul(>B=fe#2,<YmX1=fe#2,<YmX2=fe#16); */
+/* asm 2: fe_mul(>B=r->Y,<YmX1=r->Y,<YmX2=q->YminusX); */
+fe_mul(r->Y,r->Y,q->YminusX);
+
+/* qhasm: C = T2d2*T1 */
+/* asm 1: fe_mul(>C=fe#4,<T2d2=fe#18,<T1=fe#14); */
+/* asm 2: fe_mul(>C=r->T,<T2d2=q->T2d,<T1=p->T); */
+fe_mul(r->T,q->T2d,p->T);
+
+/* qhasm: ZZ = Z1*Z2 */
+/* asm 1: fe_mul(>ZZ=fe#1,<Z1=fe#13,<Z2=fe#17); */
+/* asm 2: fe_mul(>ZZ=r->X,<Z1=p->Z,<Z2=q->Z); */
+fe_mul(r->X,p->Z,q->Z);
+
+/* qhasm: D = 2*ZZ */
+/* asm 1: fe_add(>D=fe#5,<ZZ=fe#1,<ZZ=fe#1); */
+/* asm 2: fe_add(>D=t0,<ZZ=r->X,<ZZ=r->X); */
+fe_add(t0,r->X,r->X);
+
+/* qhasm: X3 = A-B */
+/* asm 1: fe_sub(>X3=fe#1,<A=fe#3,<B=fe#2); */
+/* asm 2: fe_sub(>X3=r->X,<A=r->Z,<B=r->Y); */
+fe_sub(r->X,r->Z,r->Y);
+
+/* qhasm: Y3 = A+B */
+/* asm 1: fe_add(>Y3=fe#2,<A=fe#3,<B=fe#2); */
+/* asm 2: fe_add(>Y3=r->Y,<A=r->Z,<B=r->Y); */
+fe_add(r->Y,r->Z,r->Y);
+
+/* qhasm: Z3 = D+C */
+/* asm 1: fe_add(>Z3=fe#3,<D=fe#5,<C=fe#4); */
+/* asm 2: fe_add(>Z3=r->Z,<D=t0,<C=r->T); */
+fe_add(r->Z,t0,r->T);
+
+/* qhasm: T3 = D-C */
+/* asm 1: fe_sub(>T3=fe#4,<D=fe#5,<C=fe#4); */
+/* asm 2: fe_sub(>T3=r->T,<D=t0,<C=r->T); */
+fe_sub(r->T,t0,r->T);
+
+/* qhasm: return */
diff --git a/libmariadb/plugins/auth/ref10/ge_double_scalarmult.c b/libmariadb/plugins/auth/ref10/ge_double_scalarmult.c
new file mode 100644
index 00000000..f8bf4bf7
--- /dev/null
+++ b/libmariadb/plugins/auth/ref10/ge_double_scalarmult.c
@@ -0,0 +1,96 @@
+#include "ge.h"
+
+static void slide(signed char *r,const unsigned char *a)
+{
+  int i;
+  int b;
+  int k;
+
+  for (i = 0;i < 256;++i)
+    r[i] = 1 & (a[i >> 3] >> (i & 7));
+
+  for (i = 0;i < 256;++i)
+    if (r[i]) {
+      for (b = 1;b <= 6 && i + b < 256;++b) {
+        if (r[i + b]) {
+          if (r[i] + (r[i + b] << b) <= 15) {
+            r[i] += r[i + b] << b; r[i + b] = 0;
+          } else if (r[i] - (r[i + b] << b) >= -15) {
+            r[i] -= r[i + b] << b;
+            for (k = i + b;k < 256;++k) {
+              if (!r[k]) {
+                r[k] = 1;
+                break;
+              }
+              r[k] = 0;
+            }
+          } else
+            break;
+        }
+      }
+    }
+
+}
+
+static ge_precomp Bi[8] = {
+#include "base2.h"
+} ;
+
+/*
+r = a * A + b * B
+where a = a[0]+256*a[1]+...+256^31 a[31].
+and b = b[0]+256*b[1]+...+256^31 b[31].
+B is the Ed25519 base point (x,4/5) with x positive.
+*/
+
+void ge_double_scalarmult_vartime(ge_p2 *r,const unsigned char *a,const ge_p3 *A,const unsigned char *b)
+{
+  signed char aslide[256];
+  signed char bslide[256];
+  ge_cached Ai[8]; /* A,3A,5A,7A,9A,11A,13A,15A */
+  ge_p1p1 t;
+  ge_p3 u;
+  ge_p3 A2;
+  int i;
+
+  slide(aslide,a);
+  slide(bslide,b);
+
+  ge_p3_to_cached(&Ai[0],A);
+  ge_p3_dbl(&t,A); ge_p1p1_to_p3(&A2,&t);
+  ge_add(&t,&A2,&Ai[0]); ge_p1p1_to_p3(&u,&t); ge_p3_to_cached(&Ai[1],&u);
+  ge_add(&t,&A2,&Ai[1]); ge_p1p1_to_p3(&u,&t); ge_p3_to_cached(&Ai[2],&u);
+  ge_add(&t,&A2,&Ai[2]); ge_p1p1_to_p3(&u,&t); ge_p3_to_cached(&Ai[3],&u);
+  ge_add(&t,&A2,&Ai[3]); ge_p1p1_to_p3(&u,&t); ge_p3_to_cached(&Ai[4],&u);
+  ge_add(&t,&A2,&Ai[4]); ge_p1p1_to_p3(&u,&t); ge_p3_to_cached(&Ai[5],&u);
+  ge_add(&t,&A2,&Ai[5]); ge_p1p1_to_p3(&u,&t); ge_p3_to_cached(&Ai[6],&u);
+  ge_add(&t,&A2,&Ai[6]); ge_p1p1_to_p3(&u,&t); ge_p3_to_cached(&Ai[7],&u);
+
+  ge_p2_0(r);
+
+  for (i = 255;i >= 0;--i) {
+    if (aslide[i] || bslide[i]) break;
+  }
+
+  for (;i >= 0;--i) {
+    ge_p2_dbl(&t,r);
+
+    if (aslide[i] > 0) {
+      ge_p1p1_to_p3(&u,&t);
+      ge_add(&t,&u,&Ai[aslide[i]/2]);
+    } else if (aslide[i] < 0) {
+      ge_p1p1_to_p3(&u,&t);
+      ge_sub(&t,&u,&Ai[(-aslide[i])/2]);
+    }
+
+    if (bslide[i] > 0) {
+      ge_p1p1_to_p3(&u,&t);
+      ge_madd(&t,&u,&Bi[bslide[i]/2]);
+    } else if (bslide[i] < 0) {
+      ge_p1p1_to_p3(&u,&t);
+      ge_msub(&t,&u,&Bi[(-bslide[i])/2]);
+    }
+
+    ge_p1p1_to_p2(r,&t);
+  }
+}
diff --git a/libmariadb/plugins/auth/ref10/ge_frombytes.c b/libmariadb/plugins/auth/ref10/ge_frombytes.c
new file mode 100644
index 00000000..1a059ee9
--- /dev/null
+++ b/libmariadb/plugins/auth/ref10/ge_frombytes.c
@@ -0,0 +1,50 @@
+#include "ge.h"
+
+static const fe d = {
+#include "d.h"
+} ;
+
+static const fe sqrtm1 = {
+#include "sqrtm1.h"
+} ;
+
+int ge_frombytes_negate_vartime(ge_p3 *h,const unsigned char *s)
+{
+  fe u;
+  fe v;
+  fe v3;
+  fe vxx;
+  fe check;
+
+  fe_frombytes(h->Y,s);
+  fe_1(h->Z);
+  fe_sq(u,h->Y);
+  fe_mul(v,u,d);
+  fe_sub(u,u,h->Z);       /* u = y^2-1 */
+  fe_add(v,v,h->Z);       /* v = dy^2+1 */
+
+  fe_sq(v3,v);
+  fe_mul(v3,v3,v);        /* v3 = v^3 */
+  fe_sq(h->X,v3);
+  fe_mul(h->X,h->X,v);
+  fe_mul(h->X,h->X,u);    /* x = uv^7 */
+
+  fe_pow22523(h->X,h->X); /* x = (uv^7)^((q-5)/8) */
+  fe_mul(h->X,h->X,v3);
+  fe_mul(h->X,h->X,u);    /* x = uv^3(uv^7)^((q-5)/8) */
+
+  fe_sq(vxx,h->X);
+  fe_mul(vxx,vxx,v);
+  fe_sub(check,vxx,u);    /* vx^2-u */
+  if (fe_isnonzero(check)) {
+    fe_add(check,vxx,u);  /* vx^2+u */
+    if (fe_isnonzero(check)) return -1;
+    fe_mul(h->X,h->X,sqrtm1);
+  }
+
+  if (fe_isnegative(h->X) == (s[31] >> 7))
+    fe_neg(h->X,h->X);
+
+  fe_mul(h->T,h->X,h->Y);
+  return 0;
+}
diff --git a/libmariadb/plugins/auth/ref10/ge_madd.c b/libmariadb/plugins/auth/ref10/ge_madd.c
new file mode 100644
index 00000000..62257177
--- /dev/null
+++ b/libmariadb/plugins/auth/ref10/ge_madd.c
@@ -0,0 +1,11 @@
+#include "ge.h"
+
+/*
+r = p + q
+*/
+
+void ge_madd(ge_p1p1 *r,const ge_p3 *p,const ge_precomp *q)
+{
+  fe t0;
+#include "ge_madd.h"
+}
diff --git a/libmariadb/plugins/auth/ref10/ge_madd.h b/libmariadb/plugins/auth/ref10/ge_madd.h
new file mode 100644
index 00000000..ecae8495
--- /dev/null
+++ b/libmariadb/plugins/auth/ref10/ge_madd.h
@@ -0,0 +1,88 @@
+
+/* qhasm: enter ge_madd */
+
+/* qhasm: fe X1 */
+
+/* qhasm: fe Y1 */
+
+/* qhasm: fe Z1 */
+
+/* qhasm: fe T1 */
+
+/* qhasm: fe ypx2 */
+
+/* qhasm: fe ymx2 */
+
+/* qhasm: fe xy2d2 */
+
+/* qhasm: fe X3 */
+
+/* qhasm: fe Y3 */
+
+/* qhasm: fe Z3 */
+
+/* qhasm: fe T3 */
+
+/* qhasm: fe YpX1 */
+
+/* qhasm: fe YmX1 */
+
+/* qhasm: fe A */
+
+/* qhasm: fe B */
+
+/* qhasm: fe C */
+
+/* qhasm: fe D */
+
+/* qhasm: YpX1 = Y1+X1 */
+/* asm 1: fe_add(>YpX1=fe#1,<Y1=fe#12,<X1=fe#11); */
+/* asm 2: fe_add(>YpX1=r->X,<Y1=p->Y,<X1=p->X); */
+fe_add(r->X,p->Y,p->X);
+
+/* qhasm: YmX1 = Y1-X1 */
+/* asm 1: fe_sub(>YmX1=fe#2,<Y1=fe#12,<X1=fe#11); */
+/* asm 2: fe_sub(>YmX1=r->Y,<Y1=p->Y,<X1=p->X); */
+fe_sub(r->Y,p->Y,p->X);
+
+/* qhasm: A = YpX1*ypx2 */
+/* asm 1: fe_mul(>A=fe#3,<YpX1=fe#1,<ypx2=fe#15); */
+/* asm 2: fe_mul(>A=r->Z,<YpX1=r->X,<ypx2=q->yplusx); */
+fe_mul(r->Z,r->X,q->yplusx);
+
+/* qhasm: B = YmX1*ymx2 */
+/* asm 1: fe_mul(>B=fe#2,<YmX1=fe#2,<ymx2=fe#16); */
+/* asm 2: fe_mul(>B=r->Y,<YmX1=r->Y,<ymx2=q->yminusx); */
+fe_mul(r->Y,r->Y,q->yminusx);
+
+/* qhasm: C = xy2d2*T1 */
+/* asm 1: fe_mul(>C=fe#4,<xy2d2=fe#17,<T1=fe#14); */
+/* asm 2: fe_mul(>C=r->T,<xy2d2=q->xy2d,<T1=p->T); */
+fe_mul(r->T,q->xy2d,p->T);
+
+/* qhasm: D = 2*Z1 */
+/* asm 1: fe_add(>D=fe#5,<Z1=fe#13,<Z1=fe#13); */
+/* asm 2: fe_add(>D=t0,<Z1=p->Z,<Z1=p->Z); */
+fe_add(t0,p->Z,p->Z);
+
+/* qhasm: X3 = A-B */
+/* asm 1: fe_sub(>X3=fe#1,<A=fe#3,<B=fe#2); */
+/* asm 2: fe_sub(>X3=r->X,<A=r->Z,<B=r->Y); */
+fe_sub(r->X,r->Z,r->Y);
+
+/* qhasm: Y3 = A+B */
+/* asm 1: fe_add(>Y3=fe#2,<A=fe#3,<B=fe#2); */
+/* asm 2: fe_add(>Y3=r->Y,<A=r->Z,<B=r->Y); */
+fe_add(r->Y,r->Z,r->Y);
+
+/* qhasm: Z3 = D+C */
+/* asm 1: fe_add(>Z3=fe#3,<D=fe#5,<C=fe#4); */
+/* asm 2: fe_add(>Z3=r->Z,<D=t0,<C=r->T); */
+fe_add(r->Z,t0,r->T);
+
+/* qhasm: T3 = D-C */
+/* asm 1: fe_sub(>T3=fe#4,<D=fe#5,<C=fe#4); */
+/* asm 2: fe_sub(>T3=r->T,<D=t0,<C=r->T); */
+fe_sub(r->T,t0,r->T);
+
+/* qhasm: return */
diff --git a/libmariadb/plugins/auth/ref10/ge_msub.c b/libmariadb/plugins/auth/ref10/ge_msub.c
new file mode 100644
index 00000000..741ecbf1
--- /dev/null
+++ b/libmariadb/plugins/auth/ref10/ge_msub.c
@@ -0,0 +1,11 @@
+#include "ge.h"
+
+/*
+r = p - q
+*/
+
+void ge_msub(ge_p1p1 *r,const ge_p3 *p,const ge_precomp *q)
+{
+  fe t0;
+#include "ge_msub.h"
+}
diff --git a/libmariadb/plugins/auth/ref10/ge_msub.h b/libmariadb/plugins/auth/ref10/ge_msub.h
new file mode 100644
index 00000000..500f986b
--- /dev/null
+++ b/libmariadb/plugins/auth/ref10/ge_msub.h
@@ -0,0 +1,88 @@
+
+/* qhasm: enter ge_msub */
+
+/* qhasm: fe X1 */
+
+/* qhasm: fe Y1 */
+
+/* qhasm: fe Z1 */
+
+/* qhasm: fe T1 */
+
+/* qhasm: fe ypx2 */
+
+/* qhasm: fe ymx2 */
+
+/* qhasm: fe xy2d2 */
+
+/* qhasm: fe X3 */
+
+/* qhasm: fe Y3 */
+
+/* qhasm: fe Z3 */
+
+/* qhasm: fe T3 */
+
+/* qhasm: fe YpX1 */
+
+/* qhasm: fe YmX1 */
+
+/* qhasm: fe A */
+
+/* qhasm: fe B */
+
+/* qhasm: fe C */
+
+/* qhasm: fe D */
+
+/* qhasm: YpX1 = Y1+X1 */
+/* asm 1: fe_add(>YpX1=fe#1,<Y1=fe#12,<X1=fe#11); */
+/* asm 2: fe_add(>YpX1=r->X,<Y1=p->Y,<X1=p->X); */
+fe_add(r->X,p->Y,p->X);
+
+/* qhasm: YmX1 = Y1-X1 */
+/* asm 1: fe_sub(>YmX1=fe#2,<Y1=fe#12,<X1=fe#11); */
+/* asm 2: fe_sub(>YmX1=r->Y,<Y1=p->Y,<X1=p->X); */
+fe_sub(r->Y,p->Y,p->X);
+
+/* qhasm: A = YpX1*ymx2 */
+/* asm 1: fe_mul(>A=fe#3,<YpX1=fe#1,<ymx2=fe#16); */
+/* asm 2: fe_mul(>A=r->Z,<YpX1=r->X,<ymx2=q->yminusx); */
+fe_mul(r->Z,r->X,q->yminusx);
+
+/* qhasm: B = YmX1*ypx2 */
+/* asm 1: fe_mul(>B=fe#2,<YmX1=fe#2,<ypx2=fe#15); */
+/* asm 2: fe_mul(>B=r->Y,<YmX1=r->Y,<ypx2=q->yplusx); */
+fe_mul(r->Y,r->Y,q->yplusx);
+
+/* qhasm: C = xy2d2*T1 */
+/* asm 1: fe_mul(>C=fe#4,<xy2d2=fe#17,<T1=fe#14); */
+/* asm 2: fe_mul(>C=r->T,<xy2d2=q->xy2d,<T1=p->T); */
+fe_mul(r->T,q->xy2d,p->T);
+
+/* qhasm: D = 2*Z1 */
+/* asm 1: fe_add(>D=fe#5,<Z1=fe#13,<Z1=fe#13); */
+/* asm 2: fe_add(>D=t0,<Z1=p->Z,<Z1=p->Z); */
+fe_add(t0,p->Z,p->Z);
+
+/* qhasm: X3 = A-B */
+/* asm 1: fe_sub(>X3=fe#1,<A=fe#3,<B=fe#2); */
+/* asm 2: fe_sub(>X3=r->X,<A=r->Z,<B=r->Y); */
+fe_sub(r->X,r->Z,r->Y);
+
+/* qhasm: Y3 = A+B */
+/* asm 1: fe_add(>Y3=fe#2,<A=fe#3,<B=fe#2); */
+/* asm 2: fe_add(>Y3=r->Y,<A=r->Z,<B=r->Y); */
+fe_add(r->Y,r->Z,r->Y);
+
+/* qhasm: Z3 = D-C */
+/* asm 1: fe_sub(>Z3=fe#3,<D=fe#5,<C=fe#4); */
+/* asm 2: fe_sub(>Z3=r->Z,<D=t0,<C=r->T); */
+fe_sub(r->Z,t0,r->T);
+
+/* qhasm: T3 = D+C */
+/* asm 1: fe_add(>T3=fe#4,<D=fe#5,<C=fe#4); */
+/* asm 2: fe_add(>T3=r->T,<D=t0,<C=r->T); */
+fe_add(r->T,t0,r->T);
+
+/* qhasm: return */
diff --git a/libmariadb/plugins/auth/ref10/ge_p1p1_to_p2.c b/libmariadb/plugins/auth/ref10/ge_p1p1_to_p2.c
new file mode 100644
index 00000000..9bb5013d
--- /dev/null
+++ b/libmariadb/plugins/auth/ref10/ge_p1p1_to_p2.c
@@ -0,0 +1,12 @@
+#include "ge.h"
+
+/*
+r = p
+*/
+
+extern void ge_p1p1_to_p2(ge_p2 *r,const ge_p1p1 *p)
+{
+  fe_mul(r->X,p->X,p->T);
+  fe_mul(r->Y,p->Y,p->Z);
+  fe_mul(r->Z,p->Z,p->T);
+}
diff --git a/libmariadb/plugins/auth/ref10/ge_p1p1_to_p3.c b/libmariadb/plugins/auth/ref10/ge_p1p1_to_p3.c
new file mode 100644
index 00000000..2f57b109
--- /dev/null
+++ b/libmariadb/plugins/auth/ref10/ge_p1p1_to_p3.c
@@ -0,0 +1,13 @@
+#include "ge.h"
+
+/*
+r = p
+*/
+
+extern void ge_p1p1_to_p3(ge_p3 *r,const ge_p1p1 *p)
+{
+  fe_mul(r->X,p->X,p->T);
+  fe_mul(r->Y,p->Y,p->Z);
+  fe_mul(r->Z,p->Z,p->T);
+  fe_mul(r->T,p->X,p->Y);
+}
diff --git a/libmariadb/plugins/auth/ref10/ge_p2_0.c b/libmariadb/plugins/auth/ref10/ge_p2_0.c
new file mode 100644
index 00000000..6191d1e6
--- /dev/null
+++ b/libmariadb/plugins/auth/ref10/ge_p2_0.c
@@ -0,0 +1,8 @@
+#include "ge.h"
+
+void ge_p2_0(ge_p2 *h)
+{
+  fe_0(h->X);
+  fe_1(h->Y);
+  fe_1(h->Z);
+}
diff --git a/libmariadb/plugins/auth/ref10/ge_p2_dbl.c b/libmariadb/plugins/auth/ref10/ge_p2_dbl.c
new file mode 100644
index 00000000..2e332b5c
--- /dev/null
+++ b/libmariadb/plugins/auth/ref10/ge_p2_dbl.c
@@ -0,0 +1,11 @@
+#include "ge.h"
+
+/*
+r = 2 * p
+*/
+
+void ge_p2_dbl(ge_p1p1 *r,const ge_p2 *p)
+{
+  fe t0;
+#include "ge_p2_dbl.h"
+}
diff --git a/libmariadb/plugins/auth/ref10/ge_p2_dbl.h b/libmariadb/plugins/auth/ref10/ge_p2_dbl.h
new file mode 100644
index 00000000..128efed9
--- /dev/null
+++ b/libmariadb/plugins/auth/ref10/ge_p2_dbl.h
@@ -0,0 +1,73 @@
+
+/* qhasm: enter ge_p2_dbl */
+
+/* qhasm: fe X1 */
+
+/* qhasm: fe Y1 */
+
+/* qhasm: fe Z1 */
+
+/* qhasm: fe A */
+
+/* qhasm: fe AA */
+
+/* qhasm: fe XX */
+
+/* qhasm: fe YY */
+
+/* qhasm: fe B */
+
+/* qhasm: fe X3 */
+
+/* qhasm: fe Y3 */
+
+/* qhasm: fe Z3 */
+
+/* qhasm: fe T3 */
+
+/* qhasm: XX=X1^2 */
+/* asm 1: fe_sq(>XX=fe#1,<X1=fe#11); */
+/* asm 2: fe_sq(>XX=r->X,<X1=p->X); */
+fe_sq(r->X,p->X);
+
+/* qhasm: YY=Y1^2 */
+/* asm 1: fe_sq(>YY=fe#3,<Y1=fe#12); */
+/* asm 2: fe_sq(>YY=r->Z,<Y1=p->Y); */
+fe_sq(r->Z,p->Y);
+
+/* qhasm: B=2*Z1^2 */
+/* asm 1: fe_sq2(>B=fe#4,<Z1=fe#13); */
+/* asm 2: fe_sq2(>B=r->T,<Z1=p->Z); */
+fe_sq2(r->T,p->Z);
+
+/* qhasm: A=X1+Y1 */
+/* asm 1: fe_add(>A=fe#2,<X1=fe#11,<Y1=fe#12); */
+/* asm 2: fe_add(>A=r->Y,<X1=p->X,<Y1=p->Y); */
+fe_add(r->Y,p->X,p->Y);
+
+/* qhasm: AA=A^2 */
+/* asm 1: fe_sq(>AA=fe#5,<A=fe#2); */
+/* asm 2: fe_sq(>AA=t0,<A=r->Y); */
+fe_sq(t0,r->Y);
+
+/* qhasm: Y3=YY+XX */
+/* asm 1: fe_add(>Y3=fe#2,<YY=fe#3,<XX=fe#1); */
+/* asm 2: fe_add(>Y3=r->Y,<YY=r->Z,<XX=r->X); */
+fe_add(r->Y,r->Z,r->X);
+
+/* qhasm: Z3=YY-XX */
+/* asm 1: fe_sub(>Z3=fe#3,<YY=fe#3,<XX=fe#1); */
+/* asm 2: fe_sub(>Z3=r->Z,<YY=r->Z,<XX=r->X); */
+fe_sub(r->Z,r->Z,r->X);
+
+/* qhasm: X3=AA-Y3 */
+/* asm 1: fe_sub(>X3=fe#1,<AA=fe#5,<Y3=fe#2); */
+/* asm 2: fe_sub(>X3=r->X,<AA=t0,<Y3=r->Y); */
+fe_sub(r->X,t0,r->Y);
+
+/* qhasm: T3=B-Z3 */
+/* asm 1: fe_sub(>T3=fe#4,<B=fe#4,<Z3=fe#3); */
+/* asm 2: fe_sub(>T3=r->T,<B=r->T,<Z3=r->Z); */
+fe_sub(r->T,r->T,r->Z);
+
+/* qhasm: return */
diff --git a/libmariadb/plugins/auth/ref10/ge_p3_0.c b/libmariadb/plugins/auth/ref10/ge_p3_0.c
new file mode 100644
index 00000000..401b2935
--- /dev/null
+++ b/libmariadb/plugins/auth/ref10/ge_p3_0.c
@@ -0,0 +1,9 @@
+#include "ge.h"
+
+void ge_p3_0(ge_p3 *h)
+{
+  fe_0(h->X);
+  fe_1(h->Y);
+  fe_1(h->Z);
+  fe_0(h->T);
+}
diff --git a/libmariadb/plugins/auth/ref10/ge_p3_dbl.c b/libmariadb/plugins/auth/ref10/ge_p3_dbl.c
new file mode 100644
index 00000000..0d8a0591
--- /dev/null
+++ b/libmariadb/plugins/auth/ref10/ge_p3_dbl.c
@@ -0,0 +1,12 @@
+#include "ge.h"
+
+/*
+r = 2 * p
+*/
+
+void ge_p3_dbl(ge_p1p1 *r,const ge_p3 *p)
+{
+  ge_p2 q;
+  ge_p3_to_p2(&q,p);
+  ge_p2_dbl(r,&q);
+}
diff --git a/libmariadb/plugins/auth/ref10/ge_p3_to_cached.c b/libmariadb/plugins/auth/ref10/ge_p3_to_cached.c
new file mode 100644
index 00000000..bde64228
--- /dev/null
+++ b/libmariadb/plugins/auth/ref10/ge_p3_to_cached.c
@@ -0,0 +1,17 @@
+#include "ge.h"
+
+/*
+r = p
+*/
+
+static const fe d2 = {
+#include "d2.h"
+} ;
+
+extern void ge_p3_to_cached(ge_cached *r,const ge_p3 *p)
+{
+  fe_add(r->YplusX,p->Y,p->X);
+  fe_sub(r->YminusX,p->Y,p->X);
+  fe_copy(r->Z,p->Z);
+  fe_mul(r->T2d,p->T,d2);
+}
diff --git a/libmariadb/plugins/auth/ref10/ge_p3_to_p2.c b/libmariadb/plugins/auth/ref10/ge_p3_to_p2.c
new file mode 100644
index 00000000..e532a9e4
--- /dev/null
+++ b/libmariadb/plugins/auth/ref10/ge_p3_to_p2.c
@@ -0,0 +1,12 @@
+#include "ge.h"
+
+/*
+r = p
+*/
+
+extern void ge_p3_to_p2(ge_p2 *r,const ge_p3 *p)
+{
+  fe_copy(r->X,p->X);
+  fe_copy(r->Y,p->Y);
+  fe_copy(r->Z,p->Z);
+}
diff --git a/libmariadb/plugins/auth/ref10/ge_p3_tobytes.c b/libmariadb/plugins/auth/ref10/ge_p3_tobytes.c
new file mode 100644
index 00000000..21cb2fc6
--- /dev/null
+++ b/libmariadb/plugins/auth/ref10/ge_p3_tobytes.c
@@ -0,0 +1,14 @@
+#include "ge.h"
+
+void ge_p3_tobytes(unsigned char *s,const ge_p3 *h)
+{
+  fe recip;
+  fe x;
+  fe y;
+
+  fe_invert(recip,h->Z);
+  fe_mul(x,h->X,recip);
+  fe_mul(y,h->Y,recip);
+  fe_tobytes(s,y);
+  s[31] ^= fe_isnegative(x) << 7;
+}
diff --git a/libmariadb/plugins/auth/ref10/ge_precomp_0.c b/libmariadb/plugins/auth/ref10/ge_precomp_0.c
new file mode 100644
index 00000000..2e218861
--- /dev/null
+++ b/libmariadb/plugins/auth/ref10/ge_precomp_0.c
@@ -0,0 +1,8 @@
+#include "ge.h"
+
+void ge_precomp_0(ge_precomp *h)
+{
+  fe_1(h->yplusx);
+  fe_1(h->yminusx);
+  fe_0(h->xy2d);
+}
diff --git a/libmariadb/plugins/auth/ref10/ge_scalarmult_base.c b/libmariadb/plugins/auth/ref10/ge_scalarmult_base.c
new file mode 100644
index 00000000..421e4fa0
--- /dev/null
+++ b/libmariadb/plugins/auth/ref10/ge_scalarmult_base.c
@@ -0,0 +1,105 @@
+#include "ge.h"
+#include "crypto_uint32.h"
+
+static unsigned char equal(signed char b,signed char c)
+{
+  unsigned char ub = b;
+  unsigned char uc = c;
+  unsigned char x = ub ^ uc; /* 0: yes; 1..255: no */
+  crypto_uint32 y = x; /* 0: yes; 1..255: no */
+  y -= 1; /* 4294967295: yes; 0..254: no */
+  y >>= 31; /* 1: yes; 0: no */
+  return y;
+}
+
+static unsigned char negative(signed char b)
+{
+  unsigned long long x = b; /* 18446744073709551361..18446744073709551615: yes; 0..255: no */
+  x >>= 63; /* 1: yes; 0: no */
+  return x;
+}
+
+static void cmov(ge_precomp *t,ge_precomp *u,unsigned char b)
+{
+  fe_cmov(t->yplusx,u->yplusx,b);
+  fe_cmov(t->yminusx,u->yminusx,b);
+  fe_cmov(t->xy2d,u->xy2d,b);
+}
+
+/* base[i][j] = (j+1)*256^i*B */
+static ge_precomp base[32][8] = {
+#include "base.h"
+} ;
+
+static void select(ge_precomp *t,int pos,signed char b)
+{
+  ge_precomp minust;
+  unsigned char bnegative = negative(b);
+  unsigned char babs = b - (((-bnegative) & b) << 1);
+
+  ge_precomp_0(t);
+  cmov(t,&base[pos][0],equal(babs,1));
+  cmov(t,&base[pos][1],equal(babs,2));
+  cmov(t,&base[pos][2],equal(babs,3));
+  cmov(t,&base[pos][3],equal(babs,4));
+  cmov(t,&base[pos][4],equal(babs,5));
+  cmov(t,&base[pos][5],equal(babs,6));
+  cmov(t,&base[pos][6],equal(babs,7));
+  cmov(t,&base[pos][7],equal(babs,8));
+  fe_copy(minust.yplusx,t->yminusx);
+  fe_copy(minust.yminusx,t->yplusx);
+  fe_neg(minust.xy2d,t->xy2d);
+  cmov(t,&minust,bnegative);
+}
+
+/*
+h = a * B
+where a = a[0]+256*a[1]+...+256^31 a[31]
+B is the Ed25519 base point (x,4/5) with x positive.
+
+Preconditions:
+  a[31] <= 127
+*/
+
+void ge_scalarmult_base(ge_p3 *h,const unsigned char *a)
+{
+  signed char e[64];
+  signed char carry;
+  ge_p1p1 r;
+  ge_p2 s;
+  ge_precomp t;
+  int i;
+
+  for (i = 0;i < 32;++i) {
+    e[2 * i + 0] = (a[i] >> 0) & 15;
+    e[2 * i + 1] = (a[i] >> 4) & 15;
+  }
+  /* each e[i] is between 0 and 15 */
+  /* e[63] is between 0 and 7 */
+
+  carry = 0;
+  for (i = 0;i < 63;++i) {
+    e[i] += carry;
+    carry = e[i] + 8;
+    carry >>= 4;
+    e[i] -= carry << 4;
+  }
+  e[63] += carry;
+  /* each e[i] is between -8 and 8 */
+
+  ge_p3_0(h);
+  for (i = 1;i < 64;i += 2) {
+    select(&t,i / 2,e[i]);
+    ge_madd(&r,h,&t); ge_p1p1_to_p3(h,&r);
+  }
+
+  ge_p3_dbl(&r,h);  ge_p1p1_to_p2(&s,&r);
+  ge_p2_dbl(&r,&s); ge_p1p1_to_p2(&s,&r);
+  ge_p2_dbl(&r,&s); ge_p1p1_to_p2(&s,&r);
+  ge_p2_dbl(&r,&s); ge_p1p1_to_p3(h,&r);
+
+  for (i = 0;i < 64;i += 2) {
+    select(&t,i / 2,e[i]);
+    ge_madd(&r,h,&t); ge_p1p1_to_p3(h,&r);
+  }
+}
diff --git a/libmariadb/plugins/auth/ref10/ge_sub.c b/libmariadb/plugins/auth/ref10/ge_sub.c
new file mode 100644
index 00000000..69f3d540
--- /dev/null
+++ b/libmariadb/plugins/auth/ref10/ge_sub.c
@@ -0,0 +1,11 @@
+#include "ge.h"
+
+/*
+r = p - q
+*/
+
+void ge_sub(ge_p1p1 *r,const ge_p3 *p,const ge_cached *q)
+{
+  fe t0;
+#include "ge_sub.h"
+}
diff --git a/libmariadb/plugins/auth/ref10/ge_sub.h b/libmariadb/plugins/auth/ref10/ge_sub.h
new file mode 100644
index 00000000..b4ef1f5d
--- /dev/null
+++ b/libmariadb/plugins/auth/ref10/ge_sub.h
@@ -0,0 +1,97 @@
+
+/* qhasm: enter ge_sub */
+
+/* qhasm: fe X1 */
+
+/* qhasm: fe Y1 */
+
+/* qhasm: fe Z1 */
+
+/* qhasm: fe Z2 */
+
+/* qhasm: fe T1 */
+
+/* qhasm: fe ZZ */
+
+/* qhasm: fe YpX2 */
+
+/* qhasm: fe YmX2 */
+
+/* qhasm: fe T2d2 */
+
+/* qhasm: fe X3 */
+
+/* qhasm: fe Y3 */
+
+/* qhasm: fe Z3 */
+
+/* qhasm: fe T3 */
+
+/* qhasm: fe YpX1 */
+
+/* qhasm: fe YmX1 */
+
+/* qhasm: fe A */
+
+/* qhasm: fe B */
+
+/* qhasm: fe C */
+
+/* qhasm: fe D */
+
+/* qhasm: YpX1 = Y1+X1 */
+/* asm 1: fe_add(>YpX1=fe#1,<Y1=fe#12,<X1=fe#11); */
+/* asm 2: fe_add(>YpX1=r->X,<Y1=p->Y,<X1=p->X); */
+fe_add(r->X,p->Y,p->X);
+
+/* qhasm: YmX1 = Y1-X1 */
+/* asm 1: fe_sub(>YmX1=fe#2,<Y1=fe#12,<X1=fe#11); */
+/* asm 2: fe_sub(>YmX1=r->Y,<Y1=p->Y,<X1=p->X); */
+fe_sub(r->Y,p->Y,p->X);
+
+/* qhasm: A = YpX1*YmX2 */
+/* asm 1: fe_mul(>A=fe#3,<YpX1=fe#1,<YmX2=fe#16); */
+/* asm 2: fe_mul(>A=r->Z,<YpX1=r->X,<YmX2=q->YminusX); */
+fe_mul(r->Z,r->X,q->YminusX);
+
+/* qhasm: B = YmX1*YpX2 */
+/* asm 1: fe_mul(>B=fe#2,<YmX1=fe#2,<YpX2=fe#15); */
+/* asm 2: fe_mul(>B=r->Y,<YmX1=r->Y,<YpX2=q->YplusX); */
+fe_mul(r->Y,r->Y,q->YplusX);
+
+/* qhasm: C = T2d2*T1 */
+/* asm 1: fe_mul(>C=fe#4,<T2d2=fe#18,<T1=fe#14); */
+/* asm 2: fe_mul(>C=r->T,<T2d2=q->T2d,<T1=p->T); */
+fe_mul(r->T,q->T2d,p->T);
+
+/* qhasm: ZZ = Z1*Z2 */
+/* asm 1: fe_mul(>ZZ=fe#1,<Z1=fe#13,<Z2=fe#17); */
+/* asm 2: fe_mul(>ZZ=r->X,<Z1=p->Z,<Z2=q->Z); */
+fe_mul(r->X,p->Z,q->Z);
+
+/* qhasm: D = 2*ZZ */
+/* asm 1: fe_add(>D=fe#5,<ZZ=fe#1,<ZZ=fe#1); */
+/* asm 2: fe_add(>D=t0,<ZZ=r->X,<ZZ=r->X); */
+fe_add(t0,r->X,r->X);
+
+/* qhasm: X3 = A-B */
+/* asm 1: fe_sub(>X3=fe#1,<A=fe#3,<B=fe#2); */
+/* asm 2: fe_sub(>X3=r->X,<A=r->Z,<B=r->Y); */
+fe_sub(r->X,r->Z,r->Y);
+
+/* qhasm: Y3 = A+B */
+/* asm 1: fe_add(>Y3=fe#2,<A=fe#3,<B=fe#2); */
+/* asm 2: fe_add(>Y3=r->Y,<A=r->Z,<B=r->Y); */
+fe_add(r->Y,r->Z,r->Y);
+
+/* qhasm: Z3 = D-C */
+/* asm 1: fe_sub(>Z3=fe#3,<D=fe#5,<C=fe#4); */
+/* asm 2: fe_sub(>Z3=r->Z,<D=t0,<C=r->T); */
+fe_sub(r->Z,t0,r->T);
+
+/* qhasm: T3 = D+C */
+/* asm 1: fe_add(>T3=fe#4,<D=fe#5,<C=fe#4); */
+/* asm 2: fe_add(>T3=r->T,<D=t0,<C=r->T); */
+fe_add(r->T,t0,r->T);
+
+/* qhasm: return */
diff --git a/libmariadb/plugins/auth/ref10/ge_tobytes.c b/libmariadb/plugins/auth/ref10/ge_tobytes.c
new file mode 100644
index 00000000..31b3d33e
--- /dev/null
+++ b/libmariadb/plugins/auth/ref10/ge_tobytes.c
@@ -0,0 +1,14 @@
+#include "ge.h"
+
+void ge_tobytes(unsigned char *s,const ge_p2 *h)
+{
+  fe recip;
+  fe x;
+  fe y;
+
+  fe_invert(recip,h->Z);
+  fe_mul(x,h->X,recip);
+  fe_mul(y,h->Y,recip);
+  fe_tobytes(s,y);
+  s[31] ^= fe_isnegative(x) << 7;
+}
diff --git a/libmariadb/plugins/auth/ref10/keypair.c b/libmariadb/plugins/auth/ref10/keypair.c
new file mode 100644
index 00000000..64000838
--- /dev/null
+++ b/libmariadb/plugins/auth/ref10/keypair.c
@@ -0,0 +1,23 @@
+#include <string.h>
+#include "crypto_sign.h"
+#include "crypto_hash_sha512.h"
+#include "ge.h"
+
+int crypto_sign_keypair(
+  unsigned char *pk,
+  unsigned char *pw, unsigned long long pwlen
+)
+{
+  unsigned char az[64];
+  ge_p3 A;
+
+  crypto_hash_sha512(az,pw,pwlen);
+  az[0] &= 248;
+  az[31] &= 63;
+  az[31] |= 64;
+
+  ge_scalarmult_base(&A,az);
+  ge_p3_tobytes(pk,&A);
+
+  return 0;
+}
diff --git a/libmariadb/plugins/auth/ref10/open.c b/libmariadb/plugins/auth/ref10/open.c
new file mode 100644
index 00000000..7362b681
--- /dev/null
+++ b/libmariadb/plugins/auth/ref10/open.c
@@ -0,0 +1,36 @@
+#include <string.h>
+#include "crypto_sign.h"
+#include "crypto_hash_sha512.h"
+#include "crypto_verify_32.h"
+#include "ge.h"
+#include "sc.h"
+
+int crypto_sign_open(
+  unsigned char *sm, unsigned long long smlen,
+  const unsigned char *pk
+)
+{
+  unsigned char scopy[32];
+  unsigned char h[64];
+  unsigned char rcheck[32];
+  ge_p3 A;
+  ge_p2 R;
+
+  if (smlen < 64) goto badsig;
+  if (sm[63] & 224) goto badsig;
+  if (ge_frombytes_negate_vartime(&A,pk) != 0) goto badsig;
+
+  memmove(scopy,sm + 32,32);
+
+  memmove(sm + 32,pk,32);
+  crypto_hash_sha512(h,sm,smlen);
+  sc_reduce(h);
+
+  ge_double_scalarmult_vartime(&R,h,&A,scopy);
+  ge_tobytes(rcheck,&R);
+  if (crypto_verify_32(rcheck,sm) == 0)
+    return 0;
+
+badsig:
+  return -1;
+}
diff --git a/libmariadb/plugins/auth/ref10/pow22523.h b/libmariadb/plugins/auth/ref10/pow22523.h
new file mode 100644
index 00000000..d476ed14
--- /dev/null
+++ b/libmariadb/plugins/auth/ref10/pow22523.h
@@ -0,0 +1,168 @@
+
+/* qhasm: fe z1 */
+
+/* qhasm: fe z2 */
+
+/* qhasm: fe z8 */
+
+/* qhasm: fe z9 */
+
+/* qhasm: fe z11 */
+
+/* qhasm: fe z22 */
+
+/* qhasm: fe z_5_0 */
+
+/* qhasm: fe z_10_5 */
+
+/* qhasm: fe z_10_0 */
+
+/* qhasm: fe z_20_10 */
+
+/* qhasm: fe z_20_0 */
+
+/* qhasm: fe z_40_20 */
+
+/* qhasm: fe z_40_0 */
+
+/* qhasm: fe z_50_10 */
+
+/* qhasm: fe z_50_0 */
+
+/* qhasm: fe z_100_50 */
+
+/* qhasm: fe z_100_0 */
+
+/* qhasm: fe z_200_100 */
+
+/* qhasm: fe z_200_0 */
+
+/* qhasm: fe z_250_50 */
+
+/* qhasm: fe z_250_0 */
+
+/* qhasm: fe z_252_2 */
+
+/* qhasm: fe z_252_3 */
+
+/* qhasm: enter pow22523 */
+
+/* qhasm: z2 = z1^2^1 */
+/* asm 1: fe_sq(>z2=fe#1,<z1=fe#11); for (i = 1;i < 1;++i) fe_sq(>z2=fe#1,>z2=fe#1); */
+/* asm 2: fe_sq(>z2=t0,<z1=z); for (i = 1;i < 1;++i) fe_sq(>z2=t0,>z2=t0); */
+fe_sq(t0,z); 
+
+/* covscan CWE-561 dead code: variable i can't be < 1
+for (i = 1;i < 1;++i) fe_sq(t0,t0);
+*/
+
+/* qhasm: z8 = z2^2^2 */
+/* asm 1: fe_sq(>z8=fe#2,<z2=fe#1); for (i = 1;i < 2;++i) fe_sq(>z8=fe#2,>z8=fe#2); */
+/* asm 2: fe_sq(>z8=t1,<z2=t0); for (i = 1;i < 2;++i) fe_sq(>z8=t1,>z8=t1); */
+fe_sq(t1,t0); for (i = 1;i < 2;++i) fe_sq(t1,t1);
+
+/* qhasm: z9 = z1*z8 */
+/* asm 1: fe_mul(>z9=fe#2,<z1=fe#11,<z8=fe#2); */
+/* asm 2: fe_mul(>z9=t1,<z1=z,<z8=t1); */
+fe_mul(t1,z,t1);
+
+/* qhasm: z11 = z2*z9 */
+/* asm 1: fe_mul(>z11=fe#1,<z2=fe#1,<z9=fe#2); */
+/* asm 2: fe_mul(>z11=t0,<z2=t0,<z9=t1); */
+fe_mul(t0,t0,t1);
+
+/* qhasm: z22 = z11^2^1 */
+/* asm 1: fe_sq(>z22=fe#1,<z11=fe#1); for (i = 1;i < 1;++i) fe_sq(>z22=fe#1,>z22=fe#1); */
+/* asm 2: fe_sq(>z22=t0,<z11=t0); for (i = 1;i < 1;++i) fe_sq(>z22=t0,>z22=t0); */
+fe_sq(t0,t0); 
+
+/* covscan CWE-561 dead code: variable i can't be < 1
+for (i = 1;i < 1;++i) fe_sq(t0,t0);
+*/
+
+/* qhasm: z_5_0 = z9*z22 */
+/* asm 1: fe_mul(>z_5_0=fe#1,<z9=fe#2,<z22=fe#1); */
+/* asm 2: fe_mul(>z_5_0=t0,<z9=t1,<z22=t0); */
+fe_mul(t0,t1,t0);
+
+/* qhasm: z_10_5 = z_5_0^2^5 */
+/* asm 1: fe_sq(>z_10_5=fe#2,<z_5_0=fe#1); for (i = 1;i < 5;++i) fe_sq(>z_10_5=fe#2,>z_10_5=fe#2); */
+/* asm 2: fe_sq(>z_10_5=t1,<z_5_0=t0); for (i = 1;i < 5;++i) fe_sq(>z_10_5=t1,>z_10_5=t1); */
+fe_sq(t1,t0); for (i = 1;i < 5;++i) fe_sq(t1,t1);
+
+/* qhasm: z_10_0 = z_10_5*z_5_0 */
+/* asm 1: fe_mul(>z_10_0=fe#1,<z_10_5=fe#2,<z_5_0=fe#1); */
+/* asm 2: fe_mul(>z_10_0=t0,<z_10_5=t1,<z_5_0=t0); */
+fe_mul(t0,t1,t0);
+
+/* qhasm: z_20_10 = z_10_0^2^10 */
+/* asm 1: fe_sq(>z_20_10=fe#2,<z_10_0=fe#1); for (i = 1;i < 10;++i) fe_sq(>z_20_10=fe#2,>z_20_10=fe#2); */
+/* asm 2: fe_sq(>z_20_10=t1,<z_10_0=t0); for (i = 1;i < 10;++i) fe_sq(>z_20_10=t1,>z_20_10=t1); */
+fe_sq(t1,t0); for (i = 1;i < 10;++i) fe_sq(t1,t1);
+
+/* qhasm: z_20_0 = z_20_10*z_10_0 */
+/* asm 1: fe_mul(>z_20_0=fe#2,<z_20_10=fe#2,<z_10_0=fe#1); */
+/* asm 2: fe_mul(>z_20_0=t1,<z_20_10=t1,<z_10_0=t0); */
+fe_mul(t1,t1,t0);
+
+/* qhasm: z_40_20 = z_20_0^2^20 */
+/* asm 1: fe_sq(>z_40_20=fe#3,<z_20_0=fe#2); for (i = 1;i < 20;++i) fe_sq(>z_40_20=fe#3,>z_40_20=fe#3); */
+/* asm 2: fe_sq(>z_40_20=t2,<z_20_0=t1); for (i = 1;i < 20;++i) fe_sq(>z_40_20=t2,>z_40_20=t2); */
+fe_sq(t2,t1); for (i = 1;i < 20;++i) fe_sq(t2,t2);
+
+/* qhasm: z_40_0 = z_40_20*z_20_0 */
+/* asm 1: fe_mul(>z_40_0=fe#2,<z_40_20=fe#3,<z_20_0=fe#2); */
+/* asm 2: fe_mul(>z_40_0=t1,<z_40_20=t2,<z_20_0=t1); */
+fe_mul(t1,t2,t1);
+
+/* qhasm: z_50_10 = z_40_0^2^10 */
+/* asm 1: fe_sq(>z_50_10=fe#2,<z_40_0=fe#2); for (i = 1;i < 10;++i) fe_sq(>z_50_10=fe#2,>z_50_10=fe#2); */
+/* asm 2: fe_sq(>z_50_10=t1,<z_40_0=t1); for (i = 1;i < 10;++i) fe_sq(>z_50_10=t1,>z_50_10=t1); */
+fe_sq(t1,t1); for (i = 1;i < 10;++i) fe_sq(t1,t1);
+
+/* qhasm: z_50_0 = z_50_10*z_10_0 */
+/* asm 1: fe_mul(>z_50_0=fe#1,<z_50_10=fe#2,<z_10_0=fe#1); */
+/* asm 2: fe_mul(>z_50_0=t0,<z_50_10=t1,<z_10_0=t0); */
+fe_mul(t0,t1,t0);
+
+/* qhasm: z_100_50 = z_50_0^2^50 */
+/* asm 1: fe_sq(>z_100_50=fe#2,<z_50_0=fe#1); for (i = 1;i < 50;++i) fe_sq(>z_100_50=fe#2,>z_100_50=fe#2); */
+/* asm 2: fe_sq(>z_100_50=t1,<z_50_0=t0); for (i = 1;i < 50;++i) fe_sq(>z_100_50=t1,>z_100_50=t1); */
+fe_sq(t1,t0); for (i = 1;i < 50;++i) fe_sq(t1,t1);
+
+/* qhasm: z_100_0 = z_100_50*z_50_0 */
+/* asm 1: fe_mul(>z_100_0=fe#2,<z_100_50=fe#2,<z_50_0=fe#1); */
+/* asm 2: fe_mul(>z_100_0=t1,<z_100_50=t1,<z_50_0=t0); */
+fe_mul(t1,t1,t0);
+
+/* qhasm: z_200_100 = z_100_0^2^100 */
+/* asm 1: fe_sq(>z_200_100=fe#3,<z_100_0=fe#2); for (i = 1;i < 100;++i) fe_sq(>z_200_100=fe#3,>z_200_100=fe#3); */
+/* asm 2: fe_sq(>z_200_100=t2,<z_100_0=t1); for (i = 1;i < 100;++i) fe_sq(>z_200_100=t2,>z_200_100=t2); */
+fe_sq(t2,t1); for (i = 1;i < 100;++i) fe_sq(t2,t2);
+
+/* qhasm: z_200_0 = z_200_100*z_100_0 */
+/* asm 1: fe_mul(>z_200_0=fe#2,<z_200_100=fe#3,<z_100_0=fe#2); */
+/* asm 2: fe_mul(>z_200_0=t1,<z_200_100=t2,<z_100_0=t1); */
+fe_mul(t1,t2,t1);
+
+/* qhasm: z_250_50 = z_200_0^2^50 */
+/* asm 1: fe_sq(>z_250_50=fe#2,<z_200_0=fe#2); for (i = 1;i < 50;++i) fe_sq(>z_250_50=fe#2,>z_250_50=fe#2); */
+/* asm 2: fe_sq(>z_250_50=t1,<z_200_0=t1); for (i = 1;i < 50;++i) fe_sq(>z_250_50=t1,>z_250_50=t1); */
+fe_sq(t1,t1); for (i = 1;i < 50;++i) fe_sq(t1,t1);
+
+/* qhasm: z_250_0 = z_250_50*z_50_0 */
+/* asm 1: fe_mul(>z_250_0=fe#1,<z_250_50=fe#2,<z_50_0=fe#1); */
+/* asm 2: fe_mul(>z_250_0=t0,<z_250_50=t1,<z_50_0=t0); */
+fe_mul(t0,t1,t0);
+
+/* qhasm: z_252_2 = z_250_0^2^2 */
+/* asm 1: fe_sq(>z_252_2=fe#1,<z_250_0=fe#1); for (i = 1;i < 2;++i) fe_sq(>z_252_2=fe#1,>z_252_2=fe#1); */
+/* asm 2: fe_sq(>z_252_2=t0,<z_250_0=t0); for (i = 1;i < 2;++i) fe_sq(>z_252_2=t0,>z_252_2=t0); */
+fe_sq(t0,t0); for (i = 1;i < 2;++i) fe_sq(t0,t0);
+
+/* qhasm: z_252_3 = z_252_2*z1 */
+/* asm 1: fe_mul(>z_252_3=fe#12,<z_252_2=fe#1,<z1=fe#11); */
+/* asm 2: fe_mul(>z_252_3=out,<z_252_2=t0,<z1=z); */
+fe_mul(out,t0,z);
+
+/* qhasm: return */
diff --git a/libmariadb/plugins/auth/ref10/pow225521.h b/libmariadb/plugins/auth/ref10/pow225521.h
new file mode 100644
index 00000000..cb889bc9
--- /dev/null
+++ b/libmariadb/plugins/auth/ref10/pow225521.h
@@ -0,0 +1,166 @@
+
+/* qhasm: fe z1 */
+
+/* qhasm: fe z2 */
+
+/* qhasm: fe z8 */
+
+/* qhasm: fe z9 */
+
+/* qhasm: fe z11 */
+
+/* qhasm: fe z22 */
+
+/* qhasm: fe z_5_0 */
+
+/* qhasm: fe z_10_5 */
+
+/* qhasm: fe z_10_0 */
+
+/* qhasm: fe z_20_10 */
+
+/* qhasm: fe z_20_0 */
+
+/* qhasm: fe z_40_20 */
+
+/* qhasm: fe z_40_0 */
+
+/* qhasm: fe z_50_10 */
+
+/* qhasm: fe z_50_0 */
+
+/* qhasm: fe z_100_50 */
+
+/* qhasm: fe z_100_0 */
+
+/* qhasm: fe z_200_100 */
+
+/* qhasm: fe z_200_0 */
+
+/* qhasm: fe z_250_50 */
+
+/* qhasm: fe z_250_0 */
+
+/* qhasm: fe z_255_5 */
+
+/* qhasm: fe z_255_21 */
+
+/* qhasm: enter pow225521 */
+
+/* qhasm: z2 = z1^2^1 */
+/* asm 1: fe_sq(>z2=fe#1,<z1=fe#11); for (i = 1;i < 1;++i) fe_sq(>z2=fe#1,>z2=fe#1); */
+/* asm 2: fe_sq(>z2=t0,<z1=z); for (i = 1;i < 1;++i) fe_sq(>z2=t0,>z2=t0); */
+fe_sq(t0,z); 
+/* covscan CWE-561 dead code: variable i can't be < 1
+for (i = 1;i < 1;++i) fe_sq(t0,t0);
+*/
+
+/* qhasm: z8 = z2^2^2 */
+/* asm 1: fe_sq(>z8=fe#2,<z2=fe#1); for (i = 1;i < 2;++i) fe_sq(>z8=fe#2,>z8=fe#2); */
+/* asm 2: fe_sq(>z8=t1,<z2=t0); for (i = 1;i < 2;++i) fe_sq(>z8=t1,>z8=t1); */
+fe_sq(t1,t0); for (i = 1;i < 2;++i) fe_sq(t1,t1);
+
+/* qhasm: z9 = z1*z8 */
+/* asm 1: fe_mul(>z9=fe#2,<z1=fe#11,<z8=fe#2); */
+/* asm 2: fe_mul(>z9=t1,<z1=z,<z8=t1); */
+fe_mul(t1,z,t1);
+
+/* qhasm: z11 = z2*z9 */
+/* asm 1: fe_mul(>z11=fe#1,<z2=fe#1,<z9=fe#2); */
+/* asm 2: fe_mul(>z11=t0,<z2=t0,<z9=t1); */
+fe_mul(t0,t0,t1);
+
+/* qhasm: z22 = z11^2^1 */
+/* asm 1: fe_sq(>z22=fe#3,<z11=fe#1); for (i = 1;i < 1;++i) fe_sq(>z22=fe#3,>z22=fe#3); */
+/* asm 2: fe_sq(>z22=t2,<z11=t0); for (i = 1;i < 1;++i) fe_sq(>z22=t2,>z22=t2); */
+fe_sq(t2,t0);
+/* covscan CWE-561 dead code: variable i can't be < 1
+for (i = 1;i < 1;++i) fe_sq(t2,t2);
+*/
+
+/* qhasm: z_5_0 = z9*z22 */
+/* asm 1: fe_mul(>z_5_0=fe#2,<z9=fe#2,<z22=fe#3); */
+/* asm 2: fe_mul(>z_5_0=t1,<z9=t1,<z22=t2); */
+fe_mul(t1,t1,t2);
+
+/* qhasm: z_10_5 = z_5_0^2^5 */
+/* asm 1: fe_sq(>z_10_5=fe#3,<z_5_0=fe#2); for (i = 1;i < 5;++i) fe_sq(>z_10_5=fe#3,>z_10_5=fe#3); */
+/* asm 2: fe_sq(>z_10_5=t2,<z_5_0=t1); for (i = 1;i < 5;++i) fe_sq(>z_10_5=t2,>z_10_5=t2); */
+fe_sq(t2,t1); for (i = 1;i < 5;++i) fe_sq(t2,t2);
+
+/* qhasm: z_10_0 = z_10_5*z_5_0 */
+/* asm 1: fe_mul(>z_10_0=fe#2,<z_10_5=fe#3,<z_5_0=fe#2); */
+/* asm 2: fe_mul(>z_10_0=t1,<z_10_5=t2,<z_5_0=t1); */
+fe_mul(t1,t2,t1);
+
+/* qhasm: z_20_10 = z_10_0^2^10 */
+/* asm 1: fe_sq(>z_20_10=fe#3,<z_10_0=fe#2); for (i = 1;i < 10;++i) fe_sq(>z_20_10=fe#3,>z_20_10=fe#3); */
+/* asm 2: fe_sq(>z_20_10=t2,<z_10_0=t1); for (i = 1;i < 10;++i) fe_sq(>z_20_10=t2,>z_20_10=t2); */
+fe_sq(t2,t1); for (i = 1;i < 10;++i) fe_sq(t2,t2);
+
+/* qhasm: z_20_0 = z_20_10*z_10_0 */
+/* asm 1: fe_mul(>z_20_0=fe#3,<z_20_10=fe#3,<z_10_0=fe#2); */
+/* asm 2: fe_mul(>z_20_0=t2,<z_20_10=t2,<z_10_0=t1); */
+fe_mul(t2,t2,t1);
+
+/* qhasm: z_40_20 = z_20_0^2^20 */
+/* asm 1: fe_sq(>z_40_20=fe#4,<z_20_0=fe#3); for (i = 1;i < 20;++i) fe_sq(>z_40_20=fe#4,>z_40_20=fe#4); */
+/* asm 2: fe_sq(>z_40_20=t3,<z_20_0=t2); for (i = 1;i < 20;++i) fe_sq(>z_40_20=t3,>z_40_20=t3); */
+fe_sq(t3,t2); for (i = 1;i < 20;++i) fe_sq(t3,t3);
+
+/* qhasm: z_40_0 = z_40_20*z_20_0 */
+/* asm 1: fe_mul(>z_40_0=fe#3,<z_40_20=fe#4,<z_20_0=fe#3); */
+/* asm 2: fe_mul(>z_40_0=t2,<z_40_20=t3,<z_20_0=t2); */
+fe_mul(t2,t3,t2);
+
+/* qhasm: z_50_10 = z_40_0^2^10 */
+/* asm 1: fe_sq(>z_50_10=fe#3,<z_40_0=fe#3); for (i = 1;i < 10;++i) fe_sq(>z_50_10=fe#3,>z_50_10=fe#3); */
+/* asm 2: fe_sq(>z_50_10=t2,<z_40_0=t2); for (i = 1;i < 10;++i) fe_sq(>z_50_10=t2,>z_50_10=t2); */
+fe_sq(t2,t2); for (i = 1;i < 10;++i) fe_sq(t2,t2);
+
+/* qhasm: z_50_0 = z_50_10*z_10_0 */
+/* asm 1: fe_mul(>z_50_0=fe#2,<z_50_10=fe#3,<z_10_0=fe#2); */
+/* asm 2: fe_mul(>z_50_0=t1,<z_50_10=t2,<z_10_0=t1); */
+fe_mul(t1,t2,t1);
+
+/* qhasm: z_100_50 = z_50_0^2^50 */
+/* asm 1: fe_sq(>z_100_50=fe#3,<z_50_0=fe#2); for (i = 1;i < 50;++i) fe_sq(>z_100_50=fe#3,>z_100_50=fe#3); */
+/* asm 2: fe_sq(>z_100_50=t2,<z_50_0=t1); for (i = 1;i < 50;++i) fe_sq(>z_100_50=t2,>z_100_50=t2); */
+fe_sq(t2,t1); for (i = 1;i < 50;++i) fe_sq(t2,t2);
+
+/* qhasm: z_100_0 = z_100_50*z_50_0 */
+/* asm 1: fe_mul(>z_100_0=fe#3,<z_100_50=fe#3,<z_50_0=fe#2); */
+/* asm 2: fe_mul(>z_100_0=t2,<z_100_50=t2,<z_50_0=t1); */
+fe_mul(t2,t2,t1);
+
+/* qhasm: z_200_100 = z_100_0^2^100 */
+/* asm 1: fe_sq(>z_200_100=fe#4,<z_100_0=fe#3); for (i = 1;i < 100;++i) fe_sq(>z_200_100=fe#4,>z_200_100=fe#4); */
+/* asm 2: fe_sq(>z_200_100=t3,<z_100_0=t2); for (i = 1;i < 100;++i) fe_sq(>z_200_100=t3,>z_200_100=t3); */
+fe_sq(t3,t2); for (i = 1;i < 100;++i) fe_sq(t3,t3);
+
+/* qhasm: z_200_0 = z_200_100*z_100_0 */
+/* asm 1: fe_mul(>z_200_0=fe#3,<z_200_100=fe#4,<z_100_0=fe#3); */
+/* asm 2: fe_mul(>z_200_0=t2,<z_200_100=t3,<z_100_0=t2); */
+fe_mul(t2,t3,t2);
+
+/* qhasm: z_250_50 = z_200_0^2^50 */
+/* asm 1: fe_sq(>z_250_50=fe#3,<z_200_0=fe#3); for (i = 1;i < 50;++i) fe_sq(>z_250_50=fe#3,>z_250_50=fe#3); */
+/* asm 2: fe_sq(>z_250_50=t2,<z_200_0=t2); for (i = 1;i < 50;++i) fe_sq(>z_250_50=t2,>z_250_50=t2); */
+fe_sq(t2,t2); for (i = 1;i < 50;++i) fe_sq(t2,t2);
+
+/* qhasm: z_250_0 = z_250_50*z_50_0 */
+/* asm 1: fe_mul(>z_250_0=fe#2,<z_250_50=fe#3,<z_50_0=fe#2); */
+/* asm 2: fe_mul(>z_250_0=t1,<z_250_50=t2,<z_50_0=t1); */
+fe_mul(t1,t2,t1);
+
+/* qhasm: z_255_5 = z_250_0^2^5 */
+/* asm 1: fe_sq(>z_255_5=fe#2,<z_250_0=fe#2); for (i = 1;i < 5;++i) fe_sq(>z_255_5=fe#2,>z_255_5=fe#2); */
+/* asm 2: fe_sq(>z_255_5=t1,<z_250_0=t1); for (i = 1;i < 5;++i) fe_sq(>z_255_5=t1,>z_255_5=t1); */
+fe_sq(t1,t1); for (i = 1;i < 5;++i) fe_sq(t1,t1);
+
+/* qhasm: z_255_21 = z_255_5*z11 */
+/* asm 1: fe_mul(>z_255_21=fe#12,<z_255_5=fe#2,<z11=fe#1); */
+/* asm 2: fe_mul(>z_255_21=out,<z_255_5=t1,<z11=t0); */
+fe_mul(out,t1,t0);
+
+/* qhasm: return */
diff --git a/libmariadb/plugins/auth/ref10/sc.h b/libmariadb/plugins/auth/ref10/sc.h
new file mode 100644
index 00000000..d32ed2e8
--- /dev/null
+++ b/libmariadb/plugins/auth/ref10/sc.h
@@ -0,0 +1,15 @@
+#ifndef SC_H
+#define SC_H
+
+/*
+The set of scalars is \Z/l
+where l = 2^252 + 27742317777372353535851937790883648493.
+*/
+
+#define sc_reduce crypto_sign_ed25519_ref10_sc_reduce
+#define sc_muladd crypto_sign_ed25519_ref10_sc_muladd
+
+extern void sc_reduce(unsigned char *);
+extern void sc_muladd(unsigned char *,const unsigned char *,const unsigned char *,const unsigned char *);
+
+#endif
diff --git a/libmariadb/plugins/auth/ref10/sc_muladd.c b/libmariadb/plugins/auth/ref10/sc_muladd.c
new file mode 100644
index 00000000..6f1e9d02
--- /dev/null
+++ b/libmariadb/plugins/auth/ref10/sc_muladd.c
@@ -0,0 +1,368 @@
+#include "sc.h"
+#include "crypto_int64.h"
+#include "crypto_uint32.h"
+#include "crypto_uint64.h"
+
+static crypto_uint64 load_3(const unsigned char *in)
+{
+  crypto_uint64 result;
+  result = (crypto_uint64) in[0];
+  result |= ((crypto_uint64) in[1]) << 8;
+  result |= ((crypto_uint64) in[2]) << 16;
+  return result;
+}
+
+static crypto_uint64 load_4(const unsigned char *in)
+{
+  crypto_uint64 result;
+  result = (crypto_uint64) in[0];
+  result |= ((crypto_uint64) in[1]) << 8;
+  result |= ((crypto_uint64) in[2]) << 16;
+  result |= ((crypto_uint64) in[3]) << 24;
+  return result;
+}
+
+/*
+Input:
+  a[0]+256*a[1]+...+256^31*a[31] = a
+  b[0]+256*b[1]+...+256^31*b[31] = b
+  c[0]+256*c[1]+...+256^31*c[31] = c
+
+Output:
+  s[0]+256*s[1]+...+256^31*s[31] = (ab+c) mod l
+  where l = 2^252 + 27742317777372353535851937790883648493.
+*/
+
+void sc_muladd(unsigned char *s,const unsigned char *a,const unsigned char *b,const unsigned char *c)
+{
+  crypto_int64 a0 = 2097151 & load_3(a);
+  crypto_int64 a1 = 2097151 & (load_4(a + 2) >> 5);
+  crypto_int64 a2 = 2097151 & (load_3(a + 5) >> 2);
+  crypto_int64 a3 = 2097151 & (load_4(a + 7) >> 7);
+  crypto_int64 a4 = 2097151 & (load_4(a + 10) >> 4);
+  crypto_int64 a5 = 2097151 & (load_3(a + 13) >> 1);
+  crypto_int64 a6 = 2097151 & (load_4(a + 15) >> 6);
+  crypto_int64 a7 = 2097151 & (load_3(a + 18) >> 3);
+  crypto_int64 a8 = 2097151 & load_3(a + 21);
+  crypto_int64 a9 = 2097151 & (load_4(a + 23) >> 5);
+  crypto_int64 a10 = 2097151 & (load_3(a + 26) >> 2);
+  crypto_int64 a11 = (load_4(a + 28) >> 7);
+  crypto_int64 b0 = 2097151 & load_3(b);
+  crypto_int64 b1 = 2097151 & (load_4(b + 2) >> 5);
+  crypto_int64 b2 = 2097151 & (load_3(b + 5) >> 2);
+  crypto_int64 b3 = 2097151 & (load_4(b + 7) >> 7);
+  crypto_int64 b4 = 2097151 & (load_4(b + 10) >> 4);
+  crypto_int64 b5 = 2097151 & (load_3(b + 13) >> 1);
+  crypto_int64 b6 = 2097151 & (load_4(b + 15) >> 6);
+  crypto_int64 b7 = 2097151 & (load_3(b + 18) >> 3);
+  crypto_int64 b8 = 2097151 & load_3(b + 21);
+  crypto_int64 b9 = 2097151 & (load_4(b + 23) >> 5);
+  crypto_int64 b10 = 2097151 & (load_3(b + 26) >> 2);
+  crypto_int64 b11 = (load_4(b + 28) >> 7);
+  crypto_int64 c0 = 2097151 & load_3(c);
+  crypto_int64 c1 = 2097151 & (load_4(c + 2) >> 5);
+  crypto_int64 c2 = 2097151 & (load_3(c + 5) >> 2);
+  crypto_int64 c3 = 2097151 & (load_4(c + 7) >> 7);
+  crypto_int64 c4 = 2097151 & (load_4(c + 10) >> 4);
+  crypto_int64 c5 = 2097151 & (load_3(c + 13) >> 1);
+  crypto_int64 c6 = 2097151 & (load_4(c + 15) >> 6);
+  crypto_int64 c7 = 2097151 & (load_3(c + 18) >> 3);
+  crypto_int64 c8 = 2097151 & load_3(c + 21);
+  crypto_int64 c9 = 2097151 & (load_4(c + 23) >> 5);
+  crypto_int64 c10 = 2097151 & (load_3(c + 26) >> 2);
+  crypto_int64 c11 = (load_4(c + 28) >> 7);
+  crypto_int64 s0;
+  crypto_int64 s1;
+  crypto_int64 s2;
+  crypto_int64 s3;
+  crypto_int64 s4;
+  crypto_int64 s5;
+  crypto_int64 s6;
+  crypto_int64 s7;
+  crypto_int64 s8;
+  crypto_int64 s9;
+  crypto_int64 s10;
+  crypto_int64 s11;
+  crypto_int64 s12;
+  crypto_int64 s13;
+  crypto_int64 s14;
+  crypto_int64 s15;
+  crypto_int64 s16;
+  crypto_int64 s17;
+  crypto_int64 s18;
+  crypto_int64 s19;
+  crypto_int64 s20;
+  crypto_int64 s21;
+  crypto_int64 s22;
+  crypto_int64 s23;
+  crypto_int64 carry0;
+  crypto_int64 carry1;
+  crypto_int64 carry2;
+  crypto_int64 carry3;
+  crypto_int64 carry4;
+  crypto_int64 carry5;
+  crypto_int64 carry6;
+  crypto_int64 carry7;
+  crypto_int64 carry8;
+  crypto_int64 carry9;
+  crypto_int64 carry10;
+  crypto_int64 carry11;
+  crypto_int64 carry12;
+  crypto_int64 carry13;
+  crypto_int64 carry14;
+  crypto_int64 carry15;
+  crypto_int64 carry16;
+  crypto_int64 carry17;
+  crypto_int64 carry18;
+  crypto_int64 carry19;
+  crypto_int64 carry20;
+  crypto_int64 carry21;
+  crypto_int64 carry22;
+
+  s0 = c0 + a0*b0;
+  s1 = c1 + a0*b1 + a1*b0;
+  s2 = c2 + a0*b2 + a1*b1 + a2*b0;
+  s3 = c3 + a0*b3 + a1*b2 + a2*b1 + a3*b0;
+  s4 = c4 + a0*b4 + a1*b3 + a2*b2 + a3*b1 + a4*b0;
+  s5 = c5 + a0*b5 + a1*b4 + a2*b3 + a3*b2 + a4*b1 + a5*b0;
+  s6 = c6 + a0*b6 + a1*b5 + a2*b4 + a3*b3 + a4*b2 + a5*b1 + a6*b0;
+  s7 = c7 + a0*b7 + a1*b6 + a2*b5 + a3*b4 + a4*b3 + a5*b2 + a6*b1 + a7*b0;
+  s8 = c8 + a0*b8 + a1*b7 + a2*b6 + a3*b5 + a4*b4 + a5*b3 + a6*b2 + a7*b1 + a8*b0;
+  s9 = c9 + a0*b9 + a1*b8 + a2*b7 + a3*b6 + a4*b5 + a5*b4 + a6*b3 + a7*b2 + a8*b1 + a9*b0;
+  s10 = c10 + a0*b10 + a1*b9 + a2*b8 + a3*b7 + a4*b6 + a5*b5 + a6*b4 + a7*b3 + a8*b2 + a9*b1 + a10*b0;
+  s11 = c11 + a0*b11 + a1*b10 + a2*b9 + a3*b8 + a4*b7 + a5*b6 + a6*b5 + a7*b4 + a8*b3 + a9*b2 + a10*b1 + a11*b0;
+  s12 = a1*b11 + a2*b10 + a3*b9 + a4*b8 + a5*b7 + a6*b6 + a7*b5 + a8*b4 + a9*b3 + a10*b2 + a11*b1;
+  s13 = a2*b11 + a3*b10 + a4*b9 + a5*b8 + a6*b7 + a7*b6 + a8*b5 + a9*b4 + a10*b3 + a11*b2;
+  s14 = a3*b11 + a4*b10 + a5*b9 + a6*b8 + a7*b7 + a8*b6 + a9*b5 + a10*b4 + a11*b3;
+  s15 = a4*b11 + a5*b10 + a6*b9 + a7*b8 + a8*b7 + a9*b6 + a10*b5 + a11*b4;
+  s16 = a5*b11 + a6*b10 + a7*b9 + a8*b8 + a9*b7 + a10*b6 + a11*b5;
+  s17 = a6*b11 + a7*b10 + a8*b9 + a9*b8 + a10*b7 + a11*b6;
+  s18 = a7*b11 + a8*b10 + a9*b9 + a10*b8 + a11*b7;
+  s19 = a8*b11 + a9*b10 + a10*b9 + a11*b8;
+  s20 = a9*b11 + a10*b10 + a11*b9;
+  s21 = a10*b11 + a11*b10;
+  s22 = a11*b11;
+  s23 = 0;
+
+  carry0 = (s0 + (1<<20)) >> 21; s1 += carry0; s0 -= carry0 << 21;
+  carry2 = (s2 + (1<<20)) >> 21; s3 += carry2; s2 -= carry2 << 21;
+  carry4 = (s4 + (1<<20)) >> 21; s5 += carry4; s4 -= carry4 << 21;
+  carry6 = (s6 + (1<<20)) >> 21; s7 += carry6; s6 -= carry6 << 21;
+  carry8 = (s8 + (1<<20)) >> 21; s9 += carry8; s8 -= carry8 << 21;
+  carry10 = (s10 + (1<<20)) >> 21; s11 += carry10; s10 -= carry10 << 21;
+  carry12 = (s12 + (1<<20)) >> 21; s13 += carry12; s12 -= carry12 << 21;
+  carry14 = (s14 + (1<<20)) >> 21; s15 += carry14; s14 -= carry14 << 21;
+  carry16 = (s16 + (1<<20)) >> 21; s17 += carry16; s16 -= carry16 << 21;
+  carry18 = (s18 + (1<<20)) >> 21; s19 += carry18; s18 -= carry18 << 21;
+  carry20 = (s20 + (1<<20)) >> 21; s21 += carry20; s20 -= carry20 << 21;
+  carry22 = (s22 + (1<<20)) >> 21; s23 += carry22; s22 -= carry22 << 21;
+
+  carry1 = (s1 + (1<<20)) >> 21; s2 += carry1; s1 -= carry1 << 21;
+  carry3 = (s3 + (1<<20)) >> 21; s4 += carry3; s3 -= carry3 << 21;
+  carry5 = (s5 + (1<<20)) >> 21; s6 += carry5; s5 -= carry5 << 21;
+  carry7 = (s7 + (1<<20)) >> 21; s8 += carry7; s7 -= carry7 << 21;
+  carry9 = (s9 + (1<<20)) >> 21; s10 += carry9; s9 -= carry9 << 21;
+  carry11 = (s11 + (1<<20)) >> 21; s12 += carry11; s11 -= carry11 << 21;
+  carry13 = (s13 + (1<<20)) >> 21; s14 += carry13; s13 -= carry13 << 21;
+  carry15 = (s15 + (1<<20)) >> 21; s16 += carry15; s15 -= carry15 << 21;
+  carry17 = (s17 + (1<<20)) >> 21; s18 += carry17; s17 -= carry17 << 21;
+  carry19 = (s19 + (1<<20)) >> 21; s20 += carry19; s19 -= carry19 << 21;
+  carry21 = (s21 + (1<<20)) >> 21; s22 += carry21; s21 -= carry21 << 21;
+
+  s11 += s23 * 666643;
+  s12 += s23 * 470296;
+  s13 += s23 * 654183;
+  s14 -= s23 * 997805;
+  s15 += s23 * 136657;
+  s16 -= s23 * 683901;
+  s23 = 0;
+
+  s10 += s22 * 666643;
+  s11 += s22 * 470296;
+  s12 += s22 * 654183;
+  s13 -= s22 * 997805;
+  s14 += s22 * 136657;
+  s15 -= s22 * 683901;
+  s22 = 0;
+
+  s9 += s21 * 666643;
+  s10 += s21 * 470296;
+  s11 += s21 * 654183;
+  s12 -= s21 * 997805;
+  s13 += s21 * 136657;
+  s14 -= s21 * 683901;
+  s21 = 0;
+
+  s8 += s20 * 666643;
+  s9 += s20 * 470296;
+  s10 += s20 * 654183;
+  s11 -= s20 * 997805;
+  s12 += s20 * 136657;
+  s13 -= s20 * 683901;
+  s20 = 0;
+
+  s7 += s19 * 666643;
+  s8 += s19 * 470296;
+  s9 += s19 * 654183;
+  s10 -= s19 * 997805;
+  s11 += s19 * 136657;
+  s12 -= s19 * 683901;
+  s19 = 0;
+
+  s6 += s18 * 666643;
+  s7 += s18 * 470296;
+  s8 += s18 * 654183;
+  s9 -= s18 * 997805;
+  s10 += s18 * 136657;
+  s11 -= s18 * 683901;
+  s18 = 0;
+
+  carry6 = (s6 + (1<<20)) >> 21; s7 += carry6; s6 -= carry6 << 21;
+  carry8 = (s8 + (1<<20)) >> 21; s9 += carry8; s8 -= carry8 << 21;
+  carry10 = (s10 + (1<<20)) >> 21; s11 += carry10; s10 -= carry10 << 21;
+  carry12 = (s12 + (1<<20)) >> 21; s13 += carry12; s12 -= carry12 << 21;
+  carry14 = (s14 + (1<<20)) >> 21; s15 += carry14; s14 -= carry14 << 21;
+  carry16 = (s16 + (1<<20)) >> 21; s17 += carry16; s16 -= carry16 << 21;
+
+  carry7 = (s7 + (1<<20)) >> 21; s8 += carry7; s7 -= carry7 << 21;
+  carry9 = (s9 + (1<<20)) >> 21; s10 += carry9; s9 -= carry9 << 21;
+  carry11 = (s11 + (1<<20)) >> 21; s12 += carry11; s11 -= carry11 << 21;
+  carry13 = (s13 + (1<<20)) >> 21; s14 += carry13; s13 -= carry13 << 21;
+  carry15 = (s15 + (1<<20)) >> 21; s16 += carry15; s15 -= carry15 << 21;
+
+  s5 += s17 * 666643;
+  s6 += s17 * 470296;
+  s7 += s17 * 654183;
+  s8 -= s17 * 997805;
+  s9 += s17 * 136657;
+  s10 -= s17 * 683901;
+  s17 = 0;
+
+  s4 += s16 * 666643;
+  s5 += s16 * 470296;
+  s6 += s16 * 654183;
+  s7 -= s16 * 997805;
+  s8 += s16 * 136657;
+  s9 -= s16 * 683901;
+  s16 = 0;
+
+  s3 += s15 * 666643;
+  s4 += s15 * 470296;
+  s5 += s15 * 654183;
+  s6 -= s15 * 997805;
+  s7 += s15 * 136657;
+  s8 -= s15 * 683901;
+  s15 = 0;
+
+  s2 += s14 * 666643;
+  s3 += s14 * 470296;
+  s4 += s14 * 654183;
+  s5 -= s14 * 997805;
+  s6 += s14 * 136657;
+  s7 -= s14 * 683901;
+  s14 = 0;
+
+  s1 += s13 * 666643;
+  s2 += s13 * 470296;
+  s3 += s13 * 654183;
+  s4 -= s13 * 997805;
+  s5 += s13 * 136657;
+  s6 -= s13 * 683901;
+  s13 = 0;
+
+  s0 += s12 * 666643;
+  s1 += s12 * 470296;
+  s2 += s12 * 654183;
+  s3 -= s12 * 997805;
+  s4 += s12 * 136657;
+  s5 -= s12 * 683901;
+  s12 = 0;
+
+  carry0 = (s0 + (1<<20)) >> 21; s1 += carry0; s0 -= carry0 << 21;
+  carry2 = (s2 + (1<<20)) >> 21; s3 += carry2; s2 -= carry2 << 21;
+  carry4 = (s4 + (1<<20)) >> 21; s5 += carry4; s4 -= carry4 << 21;
+  carry6 = (s6 + (1<<20)) >> 21; s7 += carry6; s6 -= carry6 << 21;
+  carry8 = (s8 + (1<<20)) >> 21; s9 += carry8; s8 -= carry8 << 21;
+  carry10 = (s10 + (1<<20)) >> 21; s11 += carry10; s10 -= carry10 << 21;
+
+  carry1 = (s1 + (1<<20)) >> 21; s2 += carry1; s1 -= carry1 << 21;
+  carry3 = (s3 + (1<<20)) >> 21; s4 += carry3; s3 -= carry3 << 21;
+  carry5 = (s5 + (1<<20)) >> 21; s6 += carry5; s5 -= carry5 << 21;
+  carry7 = (s7 + (1<<20)) >> 21; s8 += carry7; s7 -= carry7 << 21;
+  carry9 = (s9 + (1<<20)) >> 21; s10 += carry9; s9 -= carry9 << 21;
+  carry11 = (s11 + (1<<20)) >> 21; s12 += carry11; s11 -= carry11 << 21;
+
+  s0 += s12 * 666643;
+  s1 += s12 * 470296;
+  s2 += s12 * 654183;
+  s3 -= s12 * 997805;
+  s4 += s12 * 136657;
+  s5 -= s12 * 683901;
+  s12 = 0;
+
+  carry0 = s0 >> 21; s1 += carry0; s0 -= carry0 << 21;
+  carry1 = s1 >> 21; s2 += carry1; s1 -= carry1 << 21;
+  carry2 = s2 >> 21; s3 += carry2; s2 -= carry2 << 21;
+  carry3 = s3 >> 21; s4 += carry3; s3 -= carry3 << 21;
+  carry4 = s4 >> 21; s5 += carry4; s4 -= carry4 << 21;
+  carry5 = s5 >> 21; s6 += carry5; s5 -= carry5 << 21;
+  carry6 = s6 >> 21; s7 += carry6; s6 -= carry6 << 21;
+  carry7 = s7 >> 21; s8 += carry7; s7 -= carry7 << 21;
+  carry8 = s8 >> 21; s9 += carry8; s8 -= carry8 << 21;
+  carry9 = s9 >> 21; s10 += carry9; s9 -= carry9 << 21;
+  carry10 = s10 >> 21; s11 += carry10; s10 -= carry10 << 21;
+  carry11 = s11 >> 21; s12 += carry11; s11 -= carry11 << 21;
+
+  s0 += s12 * 666643;
+  s1 += s12 * 470296;
+  s2 += s12 * 654183;
+  s3 -= s12 * 997805;
+  s4 += s12 * 136657;
+  s5 -= s12 * 683901;
+  s12 = 0;
+
+  carry0 = s0 >> 21; s1 += carry0; s0 -= carry0 << 21;
+  carry1 = s1 >> 21; s2 += carry1; s1 -= carry1 << 21;
+  carry2 = s2 >> 21; s3 += carry2; s2 -= carry2 << 21;
+  carry3 = s3 >> 21; s4 += carry3; s3 -= carry3 << 21;
+  carry4 = s4 >> 21; s5 += carry4; s4 -= carry4 << 21;
+  carry5 = s5 >> 21; s6 += carry5; s5 -= carry5 << 21;
+  carry6 = s6 >> 21; s7 += carry6; s6 -= carry6 << 21;
+  carry7 = s7 >> 21; s8 += carry7; s7 -= carry7 << 21;
+  carry8 = s8 >> 21; s9 += carry8; s8 -= carry8 << 21;
+  carry9 = s9 >> 21; s10 += carry9; s9 -= carry9 << 21;
+  carry10 = s10 >> 21; s11 += carry10; s10 -= carry10 << 21;
+
+  s[0] = s0 >> 0;
+  s[1] = s0 >> 8;
+  s[2] = (s0 >> 16) | (s1 << 5);
+  s[3] = s1 >> 3;
+  s[4] = s1 >> 11;
+  s[5] = (s1 >> 19) | (s2 << 2);
+  s[6] = s2 >> 6;
+  s[7] = (s2 >> 14) | (s3 << 7);
+  s[8] = s3 >> 1;
+  s[9] = s3 >> 9;
+  s[10] = (s3 >> 17) | (s4 << 4);
+  s[11] = s4 >> 4;
+  s[12] = s4 >> 12;
+  s[13] = (s4 >> 20) | (s5 << 1);
+  s[14] = s5 >> 7;
+  s[15] = (s5 >> 15) | (s6 << 6);
+  s[16] = s6 >> 2;
+  s[17] = s6 >> 10;
+  s[18] = (s6 >> 18) | (s7 << 3);
+  s[19] = s7 >> 5;
+  s[20] = s7 >> 13;
+  s[21] = s8 >> 0;
+  s[22] = s8 >> 8;
+  s[23] = (s8 >> 16) | (s9 << 5);
+  s[24] = s9 >> 3;
+  s[25] = s9 >> 11;
+  s[26] = (s9 >> 19) | (s10 << 2);
+  s[27] = s10 >> 6;
+  s[28] = (s10 >> 14) | (s11 << 7);
+  s[29] = s11 >> 1;
+  s[30] = s11 >> 9;
+  s[31] = s11 >> 17;
+}
diff --git a/libmariadb/plugins/auth/ref10/sc_reduce.c b/libmariadb/plugins/auth/ref10/sc_reduce.c
new file mode 100644
index 00000000..d01f5a57
--- /dev/null
+++ b/libmariadb/plugins/auth/ref10/sc_reduce.c
@@ -0,0 +1,275 @@
+#include "sc.h"
+#include "crypto_int64.h"
+#include "crypto_uint32.h"
+#include "crypto_uint64.h"
+
+static crypto_uint64 load_3(const unsigned char *in)
+{
+  crypto_uint64 result;
+  result = (crypto_uint64) in[0];
+  result |= ((crypto_uint64) in[1]) << 8;
+  result |= ((crypto_uint64) in[2]) << 16;
+  return result;
+}
+
+static crypto_uint64 load_4(const unsigned char *in)
+{
+  crypto_uint64 result;
+  result = (crypto_uint64) in[0];
+  result |= ((crypto_uint64) in[1]) << 8;
+  result |= ((crypto_uint64) in[2]) << 16;
+  result |= ((crypto_uint64) in[3]) << 24;
+  return result;
+}
+
+/*
+Input:
+  s[0]+256*s[1]+...+256^63*s[63] = s
+
+Output:
+  s[0]+256*s[1]+...+256^31*s[31] = s mod l
+  where l = 2^252 + 27742317777372353535851937790883648493.
+  Overwrites s in place.
+*/
+
+void sc_reduce(unsigned char *s)
+{
+  crypto_int64 s0 = 2097151 & load_3(s);
+  crypto_int64 s1 = 2097151 & (load_4(s + 2) >> 5);
+  crypto_int64 s2 = 2097151 & (load_3(s + 5) >> 2);
+  crypto_int64 s3 = 2097151 & (load_4(s + 7) >> 7);
+  crypto_int64 s4 = 2097151 & (load_4(s + 10) >> 4);
+  crypto_int64 s5 = 2097151 & (load_3(s + 13) >> 1);
+  crypto_int64 s6 = 2097151 & (load_4(s + 15) >> 6);
+  crypto_int64 s7 = 2097151 & (load_3(s + 18) >> 3);
+  crypto_int64 s8 = 2097151 & load_3(s + 21);
+  crypto_int64 s9 = 2097151 & (load_4(s + 23) >> 5);
+  crypto_int64 s10 = 2097151 & (load_3(s + 26) >> 2);
+  crypto_int64 s11 = 2097151 & (load_4(s + 28) >> 7);
+  crypto_int64 s12 = 2097151 & (load_4(s + 31) >> 4);
+  crypto_int64 s13 = 2097151 & (load_3(s + 34) >> 1);
+  crypto_int64 s14 = 2097151 & (load_4(s + 36) >> 6);
+  crypto_int64 s15 = 2097151 & (load_3(s + 39) >> 3);
+  crypto_int64 s16 = 2097151 & load_3(s + 42);
+  crypto_int64 s17 = 2097151 & (load_4(s + 44) >> 5);
+  crypto_int64 s18 = 2097151 & (load_3(s + 47) >> 2);
+  crypto_int64 s19 = 2097151 & (load_4(s + 49) >> 7);
+  crypto_int64 s20 = 2097151 & (load_4(s + 52) >> 4);
+  crypto_int64 s21 = 2097151 & (load_3(s + 55) >> 1);
+  crypto_int64 s22 = 2097151 & (load_4(s + 57) >> 6);
+  crypto_int64 s23 = (load_4(s + 60) >> 3);
+  crypto_int64 carry0;
+  crypto_int64 carry1;
+  crypto_int64 carry2;
+  crypto_int64 carry3;
+  crypto_int64 carry4;
+  crypto_int64 carry5;
+  crypto_int64 carry6;
+  crypto_int64 carry7;
+  crypto_int64 carry8;
+  crypto_int64 carry9;
+  crypto_int64 carry10;
+  crypto_int64 carry11;
+  crypto_int64 carry12;
+  crypto_int64 carry13;
+  crypto_int64 carry14;
+  crypto_int64 carry15;
+  crypto_int64 carry16;
+
+  s11 += s23 * 666643;
+  s12 += s23 * 470296;
+  s13 += s23 * 654183;
+  s14 -= s23 * 997805;
+  s15 += s23 * 136657;
+  s16 -= s23 * 683901;
+  s23 = 0;
+
+  s10 += s22 * 666643;
+  s11 += s22 * 470296;
+  s12 += s22 * 654183;
+  s13 -= s22 * 997805;
+  s14 += s22 * 136657;
+  s15 -= s22 * 683901;
+  s22 = 0;
+
+  s9 += s21 * 666643;
+  s10 += s21 * 470296;
+  s11 += s21 * 654183;
+  s12 -= s21 * 997805;
+  s13 += s21 * 136657;
+  s14 -= s21 * 683901;
+  s21 = 0;
+
+  s8 += s20 * 666643;
+  s9 += s20 * 470296;
+  s10 += s20 * 654183;
+  s11 -= s20 * 997805;
+  s12 += s20 * 136657;
+  s13 -= s20 * 683901;
+  s20 = 0;
+
+  s7 += s19 * 666643;
+  s8 += s19 * 470296;
+  s9 += s19 * 654183;
+  s10 -= s19 * 997805;
+  s11 += s19 * 136657;
+  s12 -= s19 * 683901;
+  s19 = 0;
+
+  s6 += s18 * 666643;
+  s7 += s18 * 470296;
+  s8 += s18 * 654183;
+  s9 -= s18 * 997805;
+  s10 += s18 * 136657;
+  s11 -= s18 * 683901;
+  s18 = 0;
+
+  carry6 = (s6 + (1<<20)) >> 21; s7 += carry6; s6 -= carry6 << 21;
+  carry8 = (s8 + (1<<20)) >> 21; s9 += carry8; s8 -= carry8 << 21;
+  carry10 = (s10 + (1<<20)) >> 21; s11 += carry10; s10 -= carry10 << 21;
+  carry12 = (s12 + (1<<20)) >> 21; s13 += carry12; s12 -= carry12 << 21;
+  carry14 = (s14 + (1<<20)) >> 21; s15 += carry14; s14 -= carry14 << 21;
+  carry16 = (s16 + (1<<20)) >> 21; s17 += carry16; s16 -= carry16 << 21;
+
+  carry7 = (s7 + (1<<20)) >> 21; s8 += carry7; s7 -= carry7 << 21;
+  carry9 = (s9 + (1<<20)) >> 21; s10 += carry9; s9 -= carry9 << 21;
+  carry11 = (s11 + (1<<20)) >> 21; s12 += carry11; s11 -= carry11 << 21;
+  carry13 = (s13 + (1<<20)) >> 21; s14 += carry13; s13 -= carry13 << 21;
+  carry15 = (s15 + (1<<20)) >> 21; s16 += carry15; s15 -= carry15 << 21;
+
+  s5 += s17 * 666643;
+  s6 += s17 * 470296;
+  s7 += s17 * 654183;
+  s8 -= s17 * 997805;
+  s9 += s17 * 136657;
+  s10 -= s17 * 683901;
+  s17 = 0;
+
+  s4 += s16 * 666643;
+  s5 += s16 * 470296;
+  s6 += s16 * 654183;
+  s7 -= s16 * 997805;
+  s8 += s16 * 136657;
+  s9 -= s16 * 683901;
+  s16 = 0;
+
+  s3 += s15 * 666643;
+  s4 += s15 * 470296;
+  s5 += s15 * 654183;
+  s6 -= s15 * 997805;
+  s7 += s15 * 136657;
+  s8 -= s15 * 683901;
+  s15 = 0;
+
+  s2 += s14 * 666643;
+  s3 += s14 * 470296;
+  s4 += s14 * 654183;
+  s5 -= s14 * 997805;
+  s6 += s14 * 136657;
+  s7 -= s14 * 683901;
+  s14 = 0;
+
+  s1 += s13 * 666643;
+  s2 += s13 * 470296;
+  s3 += s13 * 654183;
+  s4 -= s13 * 997805;
+  s5 += s13 * 136657;
+  s6 -= s13 * 683901;
+  s13 = 0;
+
+  s0 += s12 * 666643;
+  s1 += s12 * 470296;
+  s2 += s12 * 654183;
+  s3 -= s12 * 997805;
+  s4 += s12 * 136657;
+  s5 -= s12 * 683901;
+  s12 = 0;
+
+  carry0 = (s0 + (1<<20)) >> 21; s1 += carry0; s0 -= carry0 << 21;
+  carry2 = (s2 + (1<<20)) >> 21; s3 += carry2; s2 -= carry2 << 21;
+  carry4 = (s4 + (1<<20)) >> 21; s5 += carry4; s4 -= carry4 << 21;
+  carry6 = (s6 + (1<<20)) >> 21; s7 += carry6; s6 -= carry6 << 21;
+  carry8 = (s8 + (1<<20)) >> 21; s9 += carry8; s8 -= carry8 << 21;
+  carry10 = (s10 + (1<<20)) >> 21; s11 += carry10; s10 -= carry10 << 21;
+
+  carry1 = (s1 + (1<<20)) >> 21; s2 += carry1; s1 -= carry1 << 21;
+  carry3 = (s3 + (1<<20)) >> 21; s4 += carry3; s3 -= carry3 << 21;
+  carry5 = (s5 + (1<<20)) >> 21; s6 += carry5; s5 -= carry5 << 21;
+  carry7 = (s7 + (1<<20)) >> 21; s8 += carry7; s7 -= carry7 << 21;
+  carry9 = (s9 + (1<<20)) >> 21; s10 += carry9; s9 -= carry9 << 21;
+  carry11 = (s11 + (1<<20)) >> 21; s12 += carry11; s11 -= carry11 << 21;
+
+  s0 += s12 * 666643;
+  s1 += s12 * 470296;
+  s2 += s12 * 654183;
+  s3 -= s12 * 997805;
+  s4 += s12 * 136657;
+  s5 -= s12 * 683901;
+  s12 = 0;
+
+  carry0 = s0 >> 21; s1 += carry0; s0 -= carry0 << 21;
+  carry1 = s1 >> 21; s2 += carry1; s1 -= carry1 << 21;
+  carry2 = s2 >> 21; s3 += carry2; s2 -= carry2 << 21;
+  carry3 = s3 >> 21; s4 += carry3; s3 -= carry3 << 21;
+  carry4 = s4 >> 21; s5 += carry4; s4 -= carry4 << 21;
+  carry5 = s5 >> 21; s6 += carry5; s5 -= carry5 << 21;
+  carry6 = s6 >> 21; s7 += carry6; s6 -= carry6 << 21;
+  carry7 = s7 >> 21; s8 += carry7; s7 -= carry7 << 21;
+  carry8 = s8 >> 21; s9 += carry8; s8 -= carry8 << 21;
+  carry9 = s9 >> 21; s10 += carry9; s9 -= carry9 << 21;
+  carry10 = s10 >> 21; s11 += carry10; s10 -= carry10 << 21;
+  carry11 = s11 >> 21; s12 += carry11; s11 -= carry11 << 21;
+
+  s0 += s12 * 666643;
+  s1 += s12 * 470296;
+  s2 += s12 * 654183;
+  s3 -= s12 * 997805;
+  s4 += s12 * 136657;
+  s5 -= s12 * 683901;
+  s12 = 0;
+
+  carry0 = s0 >> 21; s1 += carry0; s0 -= carry0 << 21;
+  carry1 = s1 >> 21; s2 += carry1; s1 -= carry1 << 21;
+  carry2 = s2 >> 21; s3 += carry2; s2 -= carry2 << 21;
+  carry3 = s3 >> 21; s4 += carry3; s3 -= carry3 << 21;
+  carry4 = s4 >> 21; s5 += carry4; s4 -= carry4 << 21;
+  carry5 = s5 >> 21; s6 += carry5; s5 -= carry5 << 21;
+  carry6 = s6 >> 21; s7 += carry6; s6 -= carry6 << 21;
+  carry7 = s7 >> 21; s8 += carry7; s7 -= carry7 << 21;
+  carry8 = s8 >> 21; s9 += carry8; s8 -= carry8 << 21;
+  carry9 = s9 >> 21; s10 += carry9; s9 -= carry9 << 21;
+  carry10 = s10 >> 21; s11 += carry10; s10 -= carry10 << 21;
+
+  s[0] = s0 >> 0;
+  s[1] = s0 >> 8;
+  s[2] = (s0 >> 16) | (s1 << 5);
+  s[3] = s1 >> 3;
+  s[4] = s1 >> 11;
+  s[5] = (s1 >> 19) | (s2 << 2);
+  s[6] = s2 >> 6;
+  s[7] = (s2 >> 14) | (s3 << 7);
+  s[8] = s3 >> 1;
+  s[9] = s3 >> 9;
+  s[10] = (s3 >> 17) | (s4 << 4);
+  s[11] = s4 >> 4;
+  s[12] = s4 >> 12;
+  s[13] = (s4 >> 20) | (s5 << 1);
+  s[14] = s5 >> 7;
+  s[15] = (s5 >> 15) | (s6 << 6);
+  s[16] = s6 >> 2;
+  s[17] = s6 >> 10;
+  s[18] = (s6 >> 18) | (s7 << 3);
+  s[19] = s7 >> 5;
+  s[20] = s7 >> 13;
+  s[21] = s8 >> 0;
+  s[22] = s8 >> 8;
+  s[23] = (s8 >> 16) | (s9 << 5);
+  s[24] = s9 >> 3;
+  s[25] = s9 >> 11;
+  s[26] = (s9 >> 19) | (s10 << 2);
+  s[27] = s10 >> 6;
+  s[28] = (s10 >> 14) | (s11 << 7);
+  s[29] = s11 >> 1;
+  s[30] = s11 >> 9;
+  s[31] = s11 >> 17;
+}
diff --git a/libmariadb/plugins/auth/ref10/sign.c b/libmariadb/plugins/auth/ref10/sign.c
new file mode 100644
index 00000000..b4153201
--- /dev/null
+++ b/libmariadb/plugins/auth/ref10/sign.c
@@ -0,0 +1,39 @@
+#include <string.h>
+#include "crypto_sign.h"
+#include "crypto_hash_sha512.h"
+#include "ge.h"
+#include "sc.h"
+
+int ma_crypto_sign(
+  unsigned char *sm,
+  const unsigned char *m,unsigned long long mlen,
+  const unsigned char *pw,unsigned long long pwlen
+)
+{
+  unsigned char az[64];
+  unsigned char nonce[64];
+  unsigned char hram[64];
+  ge_p3 A, R;
+
+  crypto_hash_sha512(az,pw,pwlen);
+  az[0] &= 248;
+  az[31] &= 63;
+  az[31] |= 64;
+
+  memmove(sm + 64,m,mlen);
+  memmove(sm + 32,az + 32,32);
+  crypto_hash_sha512(nonce,sm + 32,mlen + 32);
+
+  ge_scalarmult_base(&A,az);
+  ge_p3_tobytes(sm + 32,&A);
+
+  sc_reduce(nonce);
+  ge_scalarmult_base(&R,nonce);
+  ge_p3_tobytes(sm,&R);
+
+  crypto_hash_sha512(hram,sm,mlen + 64);
+  sc_reduce(hram);
+  sc_muladd(sm + 32,hram,az,nonce);
+
+  return 0;
+}
diff --git a/libmariadb/plugins/auth/ref10/sqrtm1.h b/libmariadb/plugins/auth/ref10/sqrtm1.h
new file mode 100644
index 00000000..d8caa23b
--- /dev/null
+++ b/libmariadb/plugins/auth/ref10/sqrtm1.h
@@ -0,0 +1 @@
+-32595792,-7943725,9377950,3500415,12389472,-272473,-25146209,-2005654,326686,11406482
diff --git a/libmariadb/plugins/auth/ref10/verify.c b/libmariadb/plugins/auth/ref10/verify.c
new file mode 100644
index 00000000..a0e23afe
--- /dev/null
+++ b/libmariadb/plugins/auth/ref10/verify.c
@@ -0,0 +1,40 @@
+#include "crypto_verify.h"
+
+int crypto_verify(const unsigned char *x,const unsigned char *y)
+{
+  unsigned int differentbits = 0;
+#define F(i) differentbits |= x[i] ^ y[i];
+  F(0)
+  F(1)
+  F(2)
+  F(3)
+  F(4)
+  F(5)
+  F(6)
+  F(7)
+  F(8)
+  F(9)
+  F(10)
+  F(11)
+  F(12)
+  F(13)
+  F(14)
+  F(15)
+  F(16)
+  F(17)
+  F(18)
+  F(19)
+  F(20)
+  F(21)
+  F(22)
+  F(23)
+  F(24)
+  F(25)
+  F(26)
+  F(27)
+  F(28)
+  F(29)
+  F(30)
+  F(31)
+  return (1 & ((differentbits - 1) >> 8)) - 1;
+}
diff --git a/libmariadb/plugins/auth/server_plugin.h b/libmariadb/plugins/auth/server_plugin.h
new file mode 100644
index 00000000..1348835e
--- /dev/null
+++ b/libmariadb/plugins/auth/server_plugin.h
@@ -0,0 +1,51 @@
+/* Copyright (c) 2015, Shuang Qiu, Robbie Harwood,
+Vladislav Vaintroub & MariaDB Corporation
+
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice,
+this list of conditions and the following disclaimer.
+
+2. Redistributions in binary form must reproduce the above copyright notice,
+this list of conditions and the following disclaimer in the documentation
+and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.
+*/
+
+/* Plugin variables*/
+#include <mysql/plugin_auth.h>
+typedef enum
+{
+  PLUGIN_MECH_KERBEROS = 0,
+  PLUGIN_MECH_SPNEGO   = 1,
+  PLUGIN_MECH_DEFAULT  = 2
+}PLUGIN_MECH;
+
+extern unsigned long srv_mech;
+extern char *srv_principal_name;
+extern char *srv_mech_name;
+extern char *srv_keytab_path;
+/*
+  Check, with GSSAPI/SSPI username of logged on user.
+
+  Depending on use_full_name parameter, compare either full name
+  (principal name like user@real), or local name (first component)
+*/
+int plugin_init();
+int plugin_deinit();
+
+int auth_server(MYSQL_PLUGIN_VIO *vio, const char *username, size_t  username_len, int use_full_name);
diff --git a/libmariadb/plugins/auth/sha256_pw.c b/libmariadb/plugins/auth/sha256_pw.c
new file mode 100644
index 00000000..79febf1a
--- /dev/null
+++ b/libmariadb/plugins/auth/sha256_pw.c
@@ -0,0 +1,356 @@
+/************************************************************************************
+  Copyright (C) 2017, 2022, MariaDB Corporation AB
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Library General Public
+  License as published by the Free Software Foundation; either
+  version 2 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  Library General Public License for more details.
+
+  You should have received a copy of the GNU Library General Public
+  License along with this library; if not see <http://www.gnu.org/licenses>
+  or write to the Free Software Foundation, Inc.,
+  51 Franklin St., Fifth Floor, Boston, MA 02110, USA
+ *************************************************************************************/
+#ifndef _WIN32
+#define _GNU_SOURCE 1
+#endif
+
+#ifdef HAVE_WINCRYPT
+#undef HAVE_GNUTLS
+#undef HAVE_OPENSSL
+#endif
+
+#if defined(HAVE_OPENSSL) || defined(HAVE_WINCRYPT)
+
+#include <ma_global.h>
+#include <mysql.h>
+#include <mysql/client_plugin.h>
+#include <string.h>
+#include <memory.h>
+#include <errmsg.h>
+#include <ma_global.h>
+#include <ma_sys.h>
+#include <ma_common.h>
+
+#ifndef WIN32
+#include <dlfcn.h>
+#endif
+
+#if defined(HAVE_WINCRYPT)
+#include <wincrypt.h>
+#elif defined(HAVE_OPENSSL)
+#include <openssl/rsa.h>
+#include <openssl/pem.h>
+#include <openssl/err.h>
+#endif
+
+#define MAX_PW_LEN 1024
+
+/* function prototypes */
+static int auth_sha256_client(MYSQL_PLUGIN_VIO *vio, MYSQL *mysql);
+static int auth_sha256_init(char *unused1,
+    size_t unused2,
+    int unused3,
+    va_list);
+
+
+#ifndef PLUGIN_DYNAMIC
+struct st_mysql_client_plugin_AUTHENTICATION sha256_password_client_plugin=
+#else
+struct st_mysql_client_plugin_AUTHENTICATION _mysql_client_plugin_declaration_ =
+#endif
+{
+  MYSQL_CLIENT_AUTHENTICATION_PLUGIN,
+  MYSQL_CLIENT_AUTHENTICATION_PLUGIN_INTERFACE_VERSION,
+  "sha256_password",
+  "Georg Richter",
+  "SHA256 Authentication Plugin",
+  {0,1,0},
+  "LGPL",
+  NULL,
+  auth_sha256_init,
+  NULL,
+  NULL,
+  auth_sha256_client
+};
+
+#ifdef HAVE_WINCRYPT
+static LPBYTE ma_load_pem(const char *buffer, DWORD *buffer_len)
+{
+  LPBYTE der_buffer= NULL;
+  DWORD der_buffer_length= 0;
+
+  if (buffer_len == NULL || *buffer_len == 0)
+    return NULL;
+  /* calculate the length of DER binary */
+  if (!CryptStringToBinaryA(buffer, *buffer_len, CRYPT_STRING_BASE64HEADER,
+        NULL, &der_buffer_length, NULL, NULL))
+    goto end;
+  /* allocate DER binary buffer */
+  if (!(der_buffer= (LPBYTE)LocalAlloc(0, der_buffer_length)))
+    goto end;
+  /* convert to DER binary */
+  if (!CryptStringToBinaryA(buffer, *buffer_len, CRYPT_STRING_BASE64HEADER,
+        der_buffer, &der_buffer_length, NULL, NULL))
+    goto end;
+
+  *buffer_len= der_buffer_length;
+
+  return der_buffer;
+
+end:
+  if (der_buffer)
+    LocalFree(der_buffer);
+  *buffer_len= 0;
+  return NULL;
+}
+#endif
+
+static char *load_pub_key_file(const char *filename, int *pub_key_size)
+{
+  FILE *fp= NULL;
+  char *buffer= NULL;
+  unsigned char error= 1;
+  size_t bytes_read= 0;
+  long fsize= 0;
+
+  if (!pub_key_size)
+    return NULL;
+
+  if (!(fp= fopen(filename, "r")))
+    goto end;
+
+  if (fseek(fp, 0, SEEK_END))
+    goto end;
+
+  fsize= ftell(fp);
+  if (fsize < 0)
+    goto end;
+
+  rewind(fp);
+
+  if (!(buffer= malloc(fsize + 1)))
+    goto end;
+
+  bytes_read= fread(buffer, 1, (size_t)fsize, fp);
+  if (bytes_read < (size_t)fsize)
+    goto end;
+
+  *pub_key_size= (int)bytes_read;
+
+  error= 0;
+
+end:
+  if (fp)
+    fclose(fp);
+  if (error && buffer)
+  {
+    free(buffer);
+    buffer= NULL;
+  }
+  return buffer;
+}
+
+
+static int auth_sha256_client(MYSQL_PLUGIN_VIO *vio, MYSQL *mysql)
+{
+  unsigned char *packet;
+  int packet_length;
+  int rc= CR_ERROR;
+  char passwd[MAX_PW_LEN];
+  unsigned int rsa_size;
+  unsigned int pwlen, i;
+
+#if defined(HAVE_OPENSSL)
+  EVP_PKEY *pubkey= NULL;
+  EVP_PKEY_CTX *ctx= NULL;
+  size_t outlen= 0;
+  unsigned char *rsa_enc_pw= NULL;
+  BIO *bio;
+#elif defined(HAVE_WINCRYPT)
+  unsigned char rsa_enc_pw[MAX_PW_LEN];
+  HCRYPTKEY pubkey= 0;
+  HCRYPTPROV hProv= 0;
+  LPBYTE der_buffer= NULL;
+  DWORD der_buffer_len= 0;
+  CERT_PUBLIC_KEY_INFO *publicKeyInfo= NULL;
+  DWORD ParamSize= sizeof(DWORD);
+  int publicKeyInfoLen= 0;
+#endif
+  char *filebuffer= NULL;
+
+  /* read error */
+  if ((packet_length= vio->read_packet(vio, &packet)) < 0)
+    return CR_ERROR;
+
+  if (packet_length != SCRAMBLE_LENGTH + 1)
+    return CR_SERVER_HANDSHAKE_ERR;
+
+  memmove(mysql->scramble_buff, packet, SCRAMBLE_LENGTH);
+  mysql->scramble_buff[SCRAMBLE_LENGTH]= 0;
+
+  /* if a tls session is active we need to send plain password */
+  if (mysql->client_flag & CLIENT_SSL)
+  {
+    if (vio->write_packet(vio, (unsigned char *)mysql->passwd, (int)strlen(mysql->passwd) + 1))
+      return CR_ERROR;
+    return CR_OK;
+  }
+
+  /* send empty packet if no password was provided */
+  if (!mysql->passwd || !mysql->passwd[0])
+  {
+    if (vio->write_packet(vio, 0, 0))
+      return CR_ERROR;
+    return CR_OK;
+  }
+
+  /* read public key file (if specified) */
+  if (mysql->options.extension &&
+      mysql->options.extension->server_public_key)
+  {
+    filebuffer= load_pub_key_file(mysql->options.extension->server_public_key,
+                             &packet_length);
+  }
+
+  /* if no public key file was specified or if we couldn't read the file,
+     we ask server to send public key */
+  if (!filebuffer)
+  {
+    unsigned char buf= 1;
+    if (vio->write_packet(vio, &buf, 1))
+      return CR_ERROR;
+    if ((packet_length=vio->read_packet(vio, &packet)) == -1)
+      return CR_ERROR;
+  }
+#if defined(HAVE_OPENSSL)
+  bio= BIO_new_mem_buf(filebuffer ? (unsigned char *)filebuffer : packet,
+                       packet_length);
+  if (!(pubkey= PEM_read_bio_PUBKEY(bio, NULL, NULL, NULL)))
+    goto error;
+  if (!(ctx= EVP_PKEY_CTX_new(pubkey, NULL)))
+    goto error;
+  if (EVP_PKEY_encrypt_init(ctx) <= 0)
+    goto error;
+  if (EVP_PKEY_CTX_set_rsa_padding(ctx, RSA_PKCS1_OAEP_PADDING) <= 0)
+    goto error;
+  rsa_size= EVP_PKEY_size(pubkey);
+  BIO_free(bio);
+  bio= NULL;
+  ERR_clear_error();
+#elif defined(HAVE_WINCRYPT)
+  der_buffer_len= packet_length;
+  /* Load pem and convert it to binary object. New length will be returned
+     in der_buffer_len */
+  if (!(der_buffer= ma_load_pem(filebuffer ? filebuffer : (char *)packet, &der_buffer_len)))
+    goto error;
+
+  /* Create context and load public key */
+  if (!CryptDecodeObjectEx(X509_ASN_ENCODING, X509_PUBLIC_KEY_INFO,
+                           der_buffer, der_buffer_len,
+                           CRYPT_DECODE_ALLOC_FLAG, NULL,
+                           &publicKeyInfo, (DWORD *)&publicKeyInfoLen))
+    goto error;
+  LocalFree(der_buffer);
+
+  if (!CryptAcquireContext(&hProv, NULL, NULL, PROV_RSA_FULL, 
+                           CRYPT_VERIFYCONTEXT))
+    goto error;
+  if (!CryptImportPublicKeyInfo(hProv, X509_ASN_ENCODING,
+                                publicKeyInfo, &pubkey))
+    goto error;
+
+  /* Get rsa_size */
+  CryptGetKeyParam(pubkey, KP_KEYLEN, (BYTE *)&rsa_size, &ParamSize, 0);
+  rsa_size /= 8;
+#endif
+  if (!pubkey)
+    return CR_ERROR;
+
+  pwlen= (unsigned int)strlen(mysql->passwd) + 1;  /* include terminating zero */
+  if (pwlen > MAX_PW_LEN)
+    goto error;
+  memcpy(passwd, mysql->passwd, pwlen);
+
+  /* xor password with scramble */
+  for (i=0; i < pwlen; i++)
+    passwd[i]^= *(mysql->scramble_buff + i % SCRAMBLE_LENGTH);
+
+  /* encrypt scrambled password */
+#if defined(HAVE_OPENSSL)
+  if (EVP_PKEY_encrypt(ctx, NULL, &outlen, (unsigned char *)passwd, pwlen) <= 0)
+    goto error;
+  if (!(rsa_enc_pw= malloc(outlen)))
+    goto error;
+  if (EVP_PKEY_encrypt(ctx, rsa_enc_pw, &outlen, (unsigned char *)passwd, pwlen) <= 0)
+    goto error;
+#elif defined(HAVE_WINCRYPT)
+  if (!CryptEncrypt(pubkey, 0, TRUE, CRYPT_OAEP, (BYTE *)passwd, (DWORD *)&pwlen, MAX_PW_LEN))
+    goto error;
+  /* Windows encrypts as little-endian, while server (openssl) expects
+     big-endian, so we have to revert the string */
+  for (i= 0; i < rsa_size / 2; i++)
+  {
+    rsa_enc_pw[i]= passwd[rsa_size - 1 - i];
+    rsa_enc_pw[rsa_size - 1 - i]= passwd[i];
+  }
+#endif
+  if (vio->write_packet(vio, rsa_enc_pw, rsa_size))
+    goto error;
+
+  rc= CR_OK;
+error:
+#if defined(HAVE_OPENSSL)
+  if (pubkey)
+    EVP_PKEY_free(pubkey);
+  if (bio)
+    BIO_free(bio);
+  if (ctx)
+    EVP_PKEY_CTX_free(ctx);
+  if (rsa_enc_pw)
+    free(rsa_enc_pw);
+#elif defined(HAVE_WINCRYPT)
+  CryptReleaseContext(hProv, 0);
+  if (publicKeyInfo)
+    LocalFree(publicKeyInfo);
+#endif
+  free(filebuffer);
+  return rc;
+}
+/* }}} */
+
+/* {{{ static int auth_sha256_init */
+/*
+   Initialization routine
+
+   SYNOPSIS
+   auth_sha256_init
+   unused1
+   unused2
+   unused3
+   unused4
+
+   DESCRIPTION
+   Init function checks if the caller provides own dialog function.
+   The function name must be mariadb_auth_dialog or
+   mysql_authentication_dialog_ask. If the function cannot be found,
+   we will use owr own simple command line input.
+
+   RETURN
+   0           success
+ */
+static int auth_sha256_init(char *unused1 __attribute__((unused)), 
+    size_t unused2  __attribute__((unused)), 
+    int unused3     __attribute__((unused)), 
+    va_list unused4 __attribute__((unused)))
+{
+  return 0;
+}
+/* }}} */
+
+#endif  /* defined(HAVE_OPENSSL) || defined(HAVE_WINCRYPT) */
diff --git a/libmariadb/plugins/auth/sspi_client.c b/libmariadb/plugins/auth/sspi_client.c
new file mode 100644
index 00000000..e257cd9d
--- /dev/null
+++ b/libmariadb/plugins/auth/sspi_client.c
@@ -0,0 +1,184 @@
+/* Copyright (c) 2015, Shuang Qiu, Robbie Harwood,
+Vladislav Vaintroub & MariaDB Corporation
+
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice,
+this list of conditions and the following disclaimer.
+
+2. Redistributions in binary form must reproduce the above copyright notice,
+this list of conditions and the following disclaimer in the documentation
+and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#define SECURITY_WIN32
+#include <windows.h>
+#include <sspi.h>
+#include <secext.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <mysql/plugin_auth.h>
+#include <mysql.h>
+#include <ma_server_error.h>
+
+#include "sspi_common.h"
+
+extern void log_client_error(MYSQL *mysql, const char *fmt, ...);
+static void log_error(MYSQL *mysql, SECURITY_STATUS err, const char *msg)
+{
+  if (err)
+  {
+    char buf[1024];
+    sspi_errmsg(err, buf, sizeof(buf));
+    log_client_error(mysql, "SSPI client error 0x%x - %s - %s", err, msg, buf);
+  }
+  else
+  {
+    log_client_error(mysql, "SSPI client error %s", msg);
+  }
+}
+
+
+/** Client side authentication*/
+int auth_client(char *principal_name, char *mech, MYSQL *mysql, MYSQL_PLUGIN_VIO *vio)
+{
+
+  int ret;
+  CredHandle cred;
+  CtxtHandle ctxt;
+  ULONG attribs = 0;
+  TimeStamp lifetime;
+  SECURITY_STATUS sspi_err;
+
+  SecBufferDesc inbuf_desc;
+  SecBuffer     inbuf;
+  SecBufferDesc outbuf_desc;
+  SecBuffer     outbuf;
+  PBYTE         out = NULL;
+
+  ret= CR_ERROR;
+  SecInvalidateHandle(&ctxt);
+  SecInvalidateHandle(&cred);
+
+  if (!mech || strcmp(mech, "Negotiate") != 0)
+  {
+    mech= (char *)"Kerberos";
+  }
+
+  sspi_err = AcquireCredentialsHandle(
+    NULL,
+    mech,
+    SECPKG_CRED_OUTBOUND,
+    NULL,
+    NULL,
+    NULL,
+    NULL,
+    &cred,
+    &lifetime);
+
+  if (SEC_ERROR(sspi_err))
+  {
+    log_error(mysql, sspi_err, "AcquireCredentialsHandle");
+    return CR_ERROR;
+  }
+
+  out = (PBYTE)malloc(SSPI_MAX_TOKEN_SIZE);
+  if (!out)
+  {
+    log_error(mysql, SEC_E_OK, "memory allocation error");
+    goto cleanup;
+  }
+
+  /* Prepare buffers */
+  inbuf_desc.ulVersion = SECBUFFER_VERSION;
+  inbuf_desc.cBuffers = 1;
+  inbuf_desc.pBuffers = &inbuf;
+  inbuf.BufferType = SECBUFFER_TOKEN;
+  inbuf.cbBuffer = 0;
+  inbuf.pvBuffer = NULL;
+
+  outbuf_desc.ulVersion = SECBUFFER_VERSION;
+  outbuf_desc.cBuffers = 1;
+  outbuf_desc.pBuffers = &outbuf;
+  outbuf.BufferType = SECBUFFER_TOKEN;
+  outbuf.pvBuffer = out;
+
+  do
+  {
+    outbuf.cbBuffer= SSPI_MAX_TOKEN_SIZE;
+    sspi_err= InitializeSecurityContext(
+      &cred,
+      SecIsValidHandle(&ctxt) ? &ctxt : NULL,
+      principal_name,
+      0,
+      0,
+      SECURITY_NATIVE_DREP,
+      inbuf.cbBuffer ? &inbuf_desc : NULL,
+      0,
+      &ctxt,
+      &outbuf_desc,
+      &attribs,
+      &lifetime);
+    if (SEC_ERROR(sspi_err))
+    {
+      log_error(mysql, sspi_err, "InitializeSecurityContext");
+      goto cleanup;
+    }
+    if (sspi_err != SEC_E_OK && sspi_err != SEC_I_CONTINUE_NEEDED)
+    {
+      log_error(mysql, sspi_err, "Unexpected response from InitializeSecurityContext");
+      goto cleanup;
+    }
+
+    if (outbuf.cbBuffer)
+    {
+      /* send credential to server */
+      if (vio->write_packet(vio, (unsigned char *)outbuf.pvBuffer, outbuf.cbBuffer))
+      {
+        /* Server error packet contains detailed message. */
+        ret= CR_OK_HANDSHAKE_COMPLETE;
+        goto cleanup;
+      }
+    }
+
+    if (sspi_err == SEC_I_CONTINUE_NEEDED)
+    {
+      int len= vio->read_packet(vio, (unsigned char **)&inbuf.pvBuffer);
+      if (len <= 0)
+      {
+        /* Server side error is in the last server packet. */
+        ret= CR_OK_HANDSHAKE_COMPLETE;
+        goto cleanup;
+      }
+      inbuf.cbBuffer= len;
+    }
+  } while (sspi_err == SEC_I_CONTINUE_NEEDED);
+
+  ret= CR_OK;
+
+cleanup:
+
+  if (SecIsValidHandle(&ctxt))
+    DeleteSecurityContext(&ctxt);
+  if (SecIsValidHandle(&cred))
+    FreeCredentialsHandle(&cred);
+  free(out);
+  return ret;
+}
diff --git a/libmariadb/plugins/auth/sspi_common.h b/libmariadb/plugins/auth/sspi_common.h
new file mode 100644
index 00000000..da9159eb
--- /dev/null
+++ b/libmariadb/plugins/auth/sspi_common.h
@@ -0,0 +1,38 @@
+/* Copyright (c) 2015, Shuang Qiu, Robbie Harwood,
+Vladislav Vaintroub & MariaDB Corporation
+
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice,
+this list of conditions and the following disclaimer.
+
+2. Redistributions in binary form must reproduce the above copyright notice,
+this list of conditions and the following disclaimer in the documentation
+and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#define SECURITY_WIN32
+#include <windows.h>
+#include <sspi.h>
+#include <secext.h>
+#include <stdarg.h>
+#include <stdio.h>
+
+#define SSPI_MAX_TOKEN_SIZE 50000
+#define SEC_ERROR(err) ((err) < 0)
+extern void sspi_errmsg(int err, char *buf, size_t size);
diff --git a/libmariadb/plugins/auth/sspi_errmsg.c b/libmariadb/plugins/auth/sspi_errmsg.c
new file mode 100644
index 00000000..15cb2582
--- /dev/null
+++ b/libmariadb/plugins/auth/sspi_errmsg.c
@@ -0,0 +1,169 @@
+/* Copyright (c) 2015, Shuang Qiu, Robbie Harwood,
+Vladislav Vaintroub & MariaDB Corporation
+
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice,
+this list of conditions and the following disclaimer.
+
+2. Redistributions in binary form must reproduce the above copyright notice,
+this list of conditions and the following disclaimer in the documentation
+and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#include <windows.h>
+#include <stdio.h>
+
+#ifndef SEC_E_INVALID_PARAMETER
+#define SEC_E_INVALID_PARAMETER _HRESULT_TYPEDEF_(0x8009035D)
+#endif
+#ifndef SEC_E_DELEGATION_POLICY
+#define SEC_E_DELEGATION_POLICY _HRESULT_TYPEDEF_(0x8009035E)
+#endif
+#ifndef SEC_E_POLICY_NLTM_ONLY
+#define SEC_E_POLICY_NLTM_ONLY _HRESULT_TYPEDEF_(0x8009035F)
+#endif
+#ifndef SEC_E_NO_CONTEXT
+#define SEC_E_NO_CONTEXT _HRESULT_TYPEDEF_(0x80090361)
+#endif
+#ifndef SEC_E_PKU2U_CERT_FAILURE
+#define SEC_E_PKU2U_CERT_FAILURE _HRESULT_TYPEDEF_(0x80090362)
+#endif
+#ifndef SEC_E_MUTUAL_AUTH_FAILED
+#define SEC_E_MUTUAL_AUTH_FAILED _HRESULT_TYPEDEF_(0x80090363)
+#endif
+
+#define ERRSYM(x) {x, #x}
+static struct {
+  int error;
+  const char *sym;
+} error_symbols[] =
+{
+  ERRSYM(SEC_E_OK),
+  ERRSYM(SEC_E_INSUFFICIENT_MEMORY),
+  ERRSYM(SEC_E_INVALID_HANDLE),
+  ERRSYM(SEC_E_UNSUPPORTED_FUNCTION),
+  ERRSYM(SEC_E_TARGET_UNKNOWN),
+  ERRSYM(SEC_E_INTERNAL_ERROR),
+  ERRSYM(SEC_E_SECPKG_NOT_FOUND),
+  ERRSYM(SEC_E_NOT_OWNER),
+  ERRSYM(SEC_E_CANNOT_INSTALL),
+  ERRSYM(SEC_E_INVALID_TOKEN),
+  ERRSYM(SEC_E_CANNOT_PACK),
+  ERRSYM(SEC_E_QOP_NOT_SUPPORTED),
+  ERRSYM(SEC_E_NO_IMPERSONATION),
+  ERRSYM(SEC_E_LOGON_DENIED),
+  ERRSYM(SEC_E_UNKNOWN_CREDENTIALS),
+  ERRSYM(SEC_E_NO_CREDENTIALS),
+  ERRSYM(SEC_E_MESSAGE_ALTERED),
+  ERRSYM(SEC_E_OUT_OF_SEQUENCE),
+  ERRSYM(SEC_E_NO_AUTHENTICATING_AUTHORITY),
+  ERRSYM(SEC_E_BAD_PKGID),
+  ERRSYM(SEC_E_CONTEXT_EXPIRED),
+  ERRSYM(SEC_E_INCOMPLETE_MESSAGE),
+  ERRSYM(SEC_E_INCOMPLETE_CREDENTIALS),
+  ERRSYM(SEC_E_BUFFER_TOO_SMALL),
+  ERRSYM(SEC_E_WRONG_PRINCIPAL),
+  ERRSYM(SEC_E_TIME_SKEW),
+  ERRSYM(SEC_E_UNTRUSTED_ROOT),
+  ERRSYM(SEC_E_ILLEGAL_MESSAGE),
+  ERRSYM(SEC_E_CERT_UNKNOWN),
+  ERRSYM(SEC_E_CERT_EXPIRED),
+  ERRSYM(SEC_E_ENCRYPT_FAILURE),
+  ERRSYM(SEC_E_DECRYPT_FAILURE),
+  ERRSYM(SEC_E_ALGORITHM_MISMATCH),
+  ERRSYM(SEC_E_SECURITY_QOS_FAILED),
+  ERRSYM(SEC_E_UNFINISHED_CONTEXT_DELETED),
+  ERRSYM(SEC_E_NO_TGT_REPLY),
+  ERRSYM(SEC_E_NO_IP_ADDRESSES),
+  ERRSYM(SEC_E_WRONG_CREDENTIAL_HANDLE),
+  ERRSYM(SEC_E_CRYPTO_SYSTEM_INVALID),
+  ERRSYM(SEC_E_MAX_REFERRALS_EXCEEDED),
+  ERRSYM(SEC_E_MUST_BE_KDC),
+  ERRSYM(SEC_E_STRONG_CRYPTO_NOT_SUPPORTED),
+  ERRSYM(SEC_E_TOO_MANY_PRINCIPALS),
+  ERRSYM(SEC_E_NO_PA_DATA),
+  ERRSYM(SEC_E_PKINIT_NAME_MISMATCH),
+  ERRSYM(SEC_E_SMARTCARD_LOGON_REQUIRED),
+  ERRSYM(SEC_E_SHUTDOWN_IN_PROGRESS),
+  ERRSYM(SEC_E_KDC_INVALID_REQUEST),
+  ERRSYM(SEC_E_KDC_UNABLE_TO_REFER),
+  ERRSYM(SEC_E_KDC_UNKNOWN_ETYPE),
+  ERRSYM(SEC_E_UNSUPPORTED_PREAUTH),
+  ERRSYM(SEC_E_DELEGATION_REQUIRED),
+  ERRSYM(SEC_E_BAD_BINDINGS),
+  ERRSYM(SEC_E_MULTIPLE_ACCOUNTS),
+  ERRSYM(SEC_E_NO_KERB_KEY),
+  ERRSYM(SEC_E_CERT_WRONG_USAGE),
+  ERRSYM(SEC_E_DOWNGRADE_DETECTED),
+  ERRSYM(SEC_E_SMARTCARD_CERT_REVOKED),
+  ERRSYM(SEC_E_ISSUING_CA_UNTRUSTED),
+  ERRSYM(SEC_E_REVOCATION_OFFLINE_C),
+  ERRSYM(SEC_E_PKINIT_CLIENT_FAILURE),
+  ERRSYM(SEC_E_SMARTCARD_CERT_EXPIRED),
+  ERRSYM(SEC_E_NO_S4U_PROT_SUPPORT),
+  ERRSYM(SEC_E_CROSSREALM_DELEGATION_FAILURE),
+  ERRSYM(SEC_E_REVOCATION_OFFLINE_KDC),
+  ERRSYM(SEC_E_ISSUING_CA_UNTRUSTED_KDC),
+  ERRSYM(SEC_E_KDC_CERT_EXPIRED),
+  ERRSYM(SEC_E_KDC_CERT_REVOKED),
+  ERRSYM(SEC_E_INVALID_PARAMETER),
+  ERRSYM(SEC_E_DELEGATION_POLICY),
+  ERRSYM(SEC_E_POLICY_NLTM_ONLY),
+  ERRSYM(SEC_E_NO_CONTEXT),
+  ERRSYM(SEC_E_PKU2U_CERT_FAILURE),
+  ERRSYM(SEC_E_MUTUAL_AUTH_FAILED),
+  ERRSYM(SEC_E_NO_SPM),
+  ERRSYM(SEC_E_NOT_SUPPORTED),
+  {0,0}
+};
+
+void sspi_errmsg(int err, char *buf, size_t size)
+{
+  size_t len,i;
+
+  buf[size - 1] = 0;
+  for (i= 0; error_symbols[i].sym; i++)
+  {
+    if (error_symbols[i].error == err)
+    {
+      size_t len= strlen(error_symbols[i].sym);
+      if (len + 2 < size)
+      {
+        memcpy(buf, error_symbols[i].sym, len);
+        buf[len]= ' ';
+        buf += len + 1;
+        size-= len + 1;
+      }
+      break;
+    }
+  }
+
+  len = FormatMessageA(
+    FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, NULL,
+    err, MAKELANGID(LANG_ENGLISH, SUBLANG_ENGLISH_US),
+    buf, (DWORD)size, NULL);
+
+  if(len > 0)
+  {
+    /* Trim trailing \n\r*/
+    char *p;
+    for(p= buf + len;p > buf && (*p == '\n' || *p=='\r' || *p == 0);p--)
+      *p= 0;
+  }
+}
diff --git a/libmariadb/plugins/compress/CMakeLists.txt b/libmariadb/plugins/compress/CMakeLists.txt
new file mode 100644
index 00000000..f6dab85d
--- /dev/null
+++ b/libmariadb/plugins/compress/CMakeLists.txt
@@ -0,0 +1,23 @@
+SET(COMPRESS_PLUGIN_DIR ${CC_SOURCE_DIR}/plugins/compress)
+
+INCLUDE_DIRECTORIES(${COMPRESS_PLUGIN_DIR})
+INCLUDE_DIRECTORIES(${CC_SOURCE_DIR}/include)
+
+#zlib compression
+
+REGISTER_PLUGIN(TARGET zlib
+                TYPE MARIADB_CLIENT_COMPRESSION_PLUGIN
+                CONFIGURATIONS STATIC
+                DEFAULT STATIC
+                SOURCES ${COMPRESS_PLUGIN_DIR}/c_zlib.c)
+
+#zstd compression
+IF(${ZSTD_FOUND})
+  INCLUDE_DIRECTORIES(${ZSTD_INCLUDE_DIRS})
+  REGISTER_PLUGIN(TARGET zstd
+                  TYPE MARIADB_CLIENT_COMPRESSION_PLUGIN
+                  CONFIGURATIONS DYNAMIC STATIC OFF
+                  DEFAULT DYNAMIC
+                  SOURCES ${COMPRESS_PLUGIN_DIR}/c_zstd.c
+                  LIBRARIES ${ZSTD_LIBRARIES})
+ENDIF()
diff --git a/libmariadb/plugins/compress/c_zlib.c b/libmariadb/plugins/compress/c_zlib.c
new file mode 100644
index 00000000..a031841d
--- /dev/null
+++ b/libmariadb/plugins/compress/c_zlib.c
@@ -0,0 +1,99 @@
+/************************************************************************************
+   Copyright (C) 2022 MariaDB Corporation AB
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public
+   License as published by the Free Software Foundation; either
+   version 2 of the License, or (at your option) any later version.
+
+   This library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with this library; if not see <http://www.gnu.org/licenses>
+   or write to the Free Software Foundation, Inc.,
+   51 Franklin St., Fifth Floor, Boston, MA 02110, USA
+
+*************************************************************************************/
+
+#include <ma_global.h>
+#include <ma_sys.h>
+#include <mysql.h>
+#include <mysql/client_plugin.h>
+#include <string.h>
+#include <memory.h>
+
+#include <stdio.h>
+#include <string.h>
+#include <zlib.h>
+
+static ma_compress_ctx *ma_zlib_ctx_init(int compression_level)
+{
+  ma_compress_ctx *ctx;
+
+  if (!(ctx = (ma_compress_ctx *)calloc(1, sizeof(ma_compress_ctx))))
+    return NULL;
+
+  ctx->compression_level= (compression_level == COMPRESSION_LEVEL_DEFAULT) ?
+                          Z_DEFAULT_COMPRESSION : compression_level;
+  return ctx;
+}
+
+static void ma_zlib_ctx_deinit(ma_compress_ctx *ctx)
+{
+    free(ctx);
+}
+
+my_bool ma_zlib_compress(ma_compress_ctx *ctx, void *dst,
+                         size_t *dst_len, void *source, size_t source_len)
+{
+  int rc;
+  if (!ctx)
+    return 1;
+
+  if ((rc= compress2((Bytef *)dst, (uLongf *)dst_len, (Bytef *)source, (uLong)source_len,
+                   ctx->compression_level)) != Z_OK)
+    return 1;
+  return 0;
+}
+
+my_bool ma_zlib_decompress(ma_compress_ctx *ctx, void *dst, size_t *dst_len, 
+                           void *source, size_t *source_len)
+{
+  int rc;
+  if (!ctx)
+    return 1;
+
+  rc= uncompress((Bytef*) dst, (uLongf *)dst_len, (Bytef*) source, (uLongf)*source_len);
+
+  if (rc != Z_OK)
+    return 1;
+
+  return 0;
+}
+
+#ifndef PLUGIN_DYNAMIC
+MARIADB_COMPRESSION_PLUGIN zlib_client_plugin=
+#else
+MARIADB_COMPRESSION_PLUGIN _mysql_client_plugin_declaration_ =
+#endif
+{
+  MARIADB_CLIENT_COMPRESSION_PLUGIN,
+  MARIADB_CLIENT_COMPRESSION_PLUGIN_INTERFACE_VERSION,
+  "zlib",
+  "Georg Richter",
+  "zlib compresson plugin",
+  {0,1,0},
+  "LGPL",
+  NULL,
+  NULL,
+  NULL,
+  NULL,
+  ma_zlib_ctx_init,
+  ma_zlib_ctx_deinit,
+  ma_zlib_compress,
+  ma_zlib_decompress,
+mysql_end_client_plugin;
+
diff --git a/libmariadb/plugins/compress/c_zstd.c b/libmariadb/plugins/compress/c_zstd.c
new file mode 100644
index 00000000..9a725f7f
--- /dev/null
+++ b/libmariadb/plugins/compress/c_zstd.c
@@ -0,0 +1,128 @@
+/************************************************************************************
+   Copyright (C) 2022 MariaDB Corporation AB
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public
+   License as published by the Free Software Foundation; either
+   version 2 of the License, or (at your option) any later version.
+
+   This library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with this library; if not see <http://www.gnu.org/licenses>
+   or write to the Free Software Foundation, Inc.,
+   51 Franklin St., Fifth Floor, Boston, MA 02110, USA
+
+*************************************************************************************/
+
+
+#include <ma_global.h>
+#include <ma_sys.h>
+#include <mysql.h>
+#include <mysql/client_plugin.h>
+#include <string.h>
+#include <memory.h>
+
+#include <stdio.h>
+#include <string.h>
+#include <zstd.h>
+
+#ifndef ZSTD_CLEVEL_DEFAULT
+#define ZSTD_CLEVEL_DEFAULT 3
+#endif
+
+static void ma_free_ctx(ma_compress_ctx *ctx)
+{
+  if (ctx)
+  {
+    if (ctx->compress_ctx)
+      ZSTD_freeCCtx(ctx->compress_ctx);
+    if (ctx->decompress_ctx)
+      ZSTD_freeDCtx(ctx->decompress_ctx);
+    free(ctx);
+  }
+}
+
+static ma_compress_ctx *ma_zstd_ctx_init(int compression_level)
+{
+  ma_compress_ctx *ctx;
+
+  if (!(ctx = (ma_compress_ctx *)calloc(1, sizeof(ma_compress_ctx))))
+    return NULL;
+
+  ctx->compression_level= (compression_level == COMPRESSION_LEVEL_DEFAULT) ?
+                          ZSTD_CLEVEL_DEFAULT : compression_level;
+
+  if (!(ctx->compress_ctx= (void *)ZSTD_createCCtx()) ||
+      !(ctx->decompress_ctx= (void *)ZSTD_createDCtx()))
+    goto end;
+
+  return ctx;
+end:
+  ma_free_ctx(ctx);
+  return NULL;
+}
+
+static void ma_zstd_ctx_deinit(ma_compress_ctx *ctx)
+{
+  ma_free_ctx(ctx);
+}
+
+my_bool ma_zstd_compress(ma_compress_ctx *ctx, void *dst,
+                         size_t *dst_len, void *source, size_t source_len)
+{
+  size_t rc;
+  if (!ctx)
+    return 1;
+
+  rc= ZSTD_compressCCtx(ctx->compress_ctx, dst, *dst_len, source, source_len, ctx->compression_level);
+  if (ZSTD_isError(rc))
+    return 1;
+  *dst_len= rc;
+  return 0;
+}
+
+my_bool ma_zstd_decompress(ma_compress_ctx *ctx, void *dst, size_t *dst_len, 
+                           void *source, size_t *source_len)
+{
+  size_t rc;
+  if (!ctx)
+    return 1;
+
+  rc= ZSTD_decompressDCtx(ctx->decompress_ctx, dst, *dst_len, source, *source_len);
+  if (ZSTD_isError(rc))
+  {
+    return 1;
+  }
+
+  *dst_len= rc;
+
+  return 0;
+}
+
+#ifndef PLUGIN_DYNAMIC
+MARIADB_COMPRESSION_PLUGIN zstd_client_plugin=
+#else
+MARIADB_COMPRESSION_PLUGIN _mysql_client_plugin_declaration_ =
+#endif
+{
+  MARIADB_CLIENT_COMPRESSION_PLUGIN,
+  MARIADB_CLIENT_COMPRESSION_PLUGIN_INTERFACE_VERSION,
+  "zstd",
+  "Georg Richter",
+  "ZStandard compresson plugin",
+  {0,1,0},
+  "LGPL",
+  NULL,
+  NULL,
+  NULL,
+  NULL,
+  ma_zstd_ctx_init,
+  ma_zstd_ctx_deinit,
+  ma_zstd_compress,
+  ma_zstd_decompress,
+mysql_end_client_plugin;
+
diff --git a/libmariadb/plugins/connection/CMakeLists.txt b/libmariadb/plugins/connection/CMakeLists.txt
new file mode 100644
index 00000000..743cf2b0
--- /dev/null
+++ b/libmariadb/plugins/connection/CMakeLists.txt
@@ -0,0 +1,6 @@
+# Replication
+REGISTER_PLUGIN(TARGET replication
+                TYPE MARIADB_CLIENT_PLUGIN_CONNECTION
+                CONFIGURATIONS STATIC DYNAMIC OFF
+                DEFAULT OFF
+                SOURCES ${CC_SOURCE_DIR}/plugins/connection/replication.c)
diff --git a/libmariadb/plugins/connection/replication.c b/libmariadb/plugins/connection/replication.c
new file mode 100644
index 00000000..0e7a18b7
--- /dev/null
+++ b/libmariadb/plugins/connection/replication.c
@@ -0,0 +1,357 @@
+/************************************************************************************
+    Copyright (C) 2015-2018 MariaDB Corporation AB
+   
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public
+   License as published by the Free Software Foundation; either
+   version 2 of the License, or (at your option) any later version.
+   
+   This library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+   
+   You should have received a copy of the GNU Library General Public
+   License along with this library; if not see <http://www.gnu.org/licenses>
+   or write to the Free Software Foundation, Inc., 
+   51 Franklin St., Fifth Floor, Boston, MA 02110, USA
+
+   Part of this code includes code from the PHP project which
+   is freely available from http://www.php.net
+*************************************************************************************/
+
+/* MariaDB Connection plugin for load balancing  */
+
+#include <ma_global.h>
+#include <ma_sys.h>
+#include <errmsg.h>
+#include <mysql.h>
+#include <mysql/client_plugin.h>
+#include <string.h>
+#include <ma_string.h>
+#include <ma_common.h>
+
+#ifndef WIN32
+#include <sys/time.h>
+#endif
+
+/* function prototypes */
+MYSQL *repl_connect(MYSQL *mysql, const char *host, const char *user, const char *passwd,
+		    const char *db, unsigned int port, const char *unix_socket, unsigned long clientflag);
+void repl_close(MYSQL *mysql);
+int repl_command(MYSQL *mysql,enum enum_server_command command, const char *arg,
+                      size_t length, my_bool skipp_check, void *opt_arg);
+int repl_set_optionsv(MYSQL *mysql, unsigned int option, ...);
+
+#define MARIADB_MASTER 0
+#define MARIADB_SLAVE  1
+
+static struct st_mariadb_api *libmariadb_api= NULL;
+
+#ifndef PLUGIN_DYNAMIC
+MARIADB_CONNECTION_PLUGIN replication_client_plugin =
+#else
+MARIADB_CONNECTION_PLUGIN _mysql_client_plugin_declaration_ =
+#endif
+{
+  MARIADB_CLIENT_CONNECTION_PLUGIN,
+  MARIADB_CLIENT_CONNECTION_PLUGIN_INTERFACE_VERSION,
+  "replication",
+  "Georg Richter",
+  "MariaDB connection plugin for load balancing",
+  {1, 0, 0},
+  "LGPL",
+  NULL,
+  NULL,
+  NULL,
+  NULL,
+  repl_connect,
+  repl_close,
+  repl_set_optionsv,
+  repl_command,
+  NULL,
+  NULL
+};
+
+typedef struct st_conn_repl {
+  MARIADB_PVIO *pvio[2];
+  MYSQL *slave_mysql;
+  my_bool read_only;
+  my_bool round_robin;
+  char *url;
+  char *host[2];
+  unsigned int port[2];
+  unsigned int current_type;
+} REPL_DATA;
+
+#define SET_SLAVE(mysql, data)\
+do {\
+  mysql->net.pvio= data->pvio[MARIADB_SLAVE]; \
+  data->current_type= MARIADB_SLAVE;\
+} while(0)
+
+#define SET_MASTER(mysql, data)\
+do {\
+  mysql->net.pvio= data->pvio[MARIADB_MASTER];\
+  data->current_type= MARIADB_MASTER;\
+} while(0)
+
+
+/* parse url
+ * Url has the following format:
+ * master[:port],slave1[:port],slave2[:port],..,slaven[:port]
+ *
+ */
+
+my_bool repl_parse_url(const char *url, REPL_DATA *data)
+{
+  char *p;
+  char *slaves[64];
+  int port[64], i,num_slaves= 0;
+
+  if (!url || url[0] == 0)
+    return 1;
+
+  memset(slaves, 0, 64 * sizeof(char *));
+  memset(&port, 0, 64 * sizeof(int));
+
+  memset(data->host, 0, 2 * sizeof(char *));
+  memset(data->port, 0, 2 * sizeof(int));
+
+  if (!data->url)
+    data->url= strdup(url);
+  data->host[MARIADB_MASTER]= p= data->url;
+ 
+  /* get slaves */ 
+  while((p && (p= strchr(p, ','))))
+  {
+    *p= '\0';
+    p++;
+    if (*p)
+    {
+      slaves[num_slaves]= p;
+      num_slaves++;
+    }
+  }
+
+  if (!num_slaves)
+    return 0;
+  if (num_slaves == 1)
+    data->host[MARIADB_SLAVE]= slaves[0];
+  else 
+  {
+    int random_nr;
+#ifndef WIN32
+    struct timeval tp;
+    gettimeofday(&tp,NULL);
+    srand(tp.tv_usec / 1000 + tp.tv_sec * 1000);
+#else
+    srand(GetTickCount());
+#endif
+
+    random_nr= rand() % num_slaves;
+    data->host[MARIADB_SLAVE]= slaves[random_nr];
+  }
+
+  /* check ports */
+  for (i=0; i < 2 && data->host[i]; i++)
+  {
+    /* We need to be aware of IPv6 addresses: According to RFC3986 sect. 3.2.2
+       hostnames have to be enclosed in square brackets if a port is given */
+    if (data->host[i][0]== '[' && strchr(data->host[i], ':') && (p= strchr(data->host[i],']')))
+    {
+      /* ignore first square bracket */
+      memmove(data->host[i], data->host[i]+1, strlen(data->host[i]) - 1);
+      p= strchr(data->host[i],']');
+      *p= 0;
+      p++;
+    }
+    else
+      p= data->host[i];
+    if (p && (p= strchr(p, ':')))
+    {
+      *p= '\0';
+      p++;
+      data->port[i]= atoi(p);
+    }
+  }
+
+  return 0;
+}
+
+MYSQL *repl_connect(MYSQL *mysql, const char *host, const char *user, const char *passwd,
+		    const char *db, unsigned int port, const char *unix_socket, unsigned long clientflag)
+{
+  REPL_DATA *data= NULL;
+  MA_CONNECTION_HANDLER *hdlr= mysql->extension->conn_hdlr;
+
+  if (!libmariadb_api)
+    libmariadb_api= mysql->methods->api;
+
+  if ((data= (REPL_DATA *)hdlr->data))
+  {
+    data->pvio[MARIADB_MASTER]->methods->close(data->pvio[MARIADB_MASTER]);
+    data->pvio[MARIADB_MASTER]= 0;
+    repl_close(mysql);
+  }
+
+  if (!(data= calloc(1, sizeof(REPL_DATA))))
+  {
+    mysql->methods->set_error(mysql, CR_OUT_OF_MEMORY, "HY000", 0);
+    return NULL;
+  }
+  memset(data->pvio, 0, 2 * sizeof(MARIADB_PVIO *));
+
+  if (repl_parse_url(host, data))
+    goto error;
+
+  /* try to connect to master */
+  if (!(libmariadb_api->mysql_real_connect(mysql, data->host[MARIADB_MASTER], user, passwd, db, 
+        data->port[MARIADB_MASTER] ? data->port[MARIADB_MASTER] : port, unix_socket, clientflag)))
+    goto error;
+
+  data->pvio[MARIADB_MASTER]= mysql->net.pvio;
+  hdlr->data= data;
+  SET_MASTER(mysql, data);
+
+  /* to allow immediate access without connection delay, we will start
+   * connecting to slave(s) in background */
+
+  /* if slave connection will fail, we will not return error but use master instead */
+  if (!(data->slave_mysql= libmariadb_api->mysql_init(NULL)) ||
+      !(mysql->methods->db_connect(data->slave_mysql, data->host[MARIADB_SLAVE], user, passwd, db, 
+                                   data->port[MARIADB_SLAVE] ? data->port[MARIADB_SLAVE] : port, unix_socket, clientflag)))
+  {
+    if (data->slave_mysql)
+      libmariadb_api->mysql_close(data->slave_mysql);
+    data->pvio[MARIADB_SLAVE]= NULL;
+  }
+  else
+  {
+    data->pvio[MARIADB_SLAVE]= data->slave_mysql->net.pvio;
+    data->slave_mysql->net.pvio->mysql= mysql;
+  }
+  return mysql;
+error:
+  if (data)
+  {
+    if (data->url)
+      free(data->url);
+    free(data);
+  }
+  return NULL;
+}
+
+void repl_close(MYSQL *mysql)
+{
+  MA_CONNECTION_HANDLER *hdlr= mysql->extension->conn_hdlr;
+  REPL_DATA *data= (REPL_DATA *)hdlr->data;
+
+  /* restore master */
+  SET_MASTER(mysql, data);
+
+  /* free slave information and close connection */
+  if (data->pvio[MARIADB_SLAVE])
+  {
+    /* restore mysql */
+    data->pvio[MARIADB_SLAVE]->mysql= data->slave_mysql;
+    libmariadb_api->mysql_close(data->slave_mysql);
+    data->pvio[MARIADB_SLAVE]= NULL;
+    data->slave_mysql= NULL;
+  }
+
+  /* free masrwe information and close connection */
+  free(data->url);
+  free(data);
+  mysql->extension->conn_hdlr->data= NULL;
+}
+
+static my_bool is_slave_command(const char *buffer, size_t buffer_len)
+{
+  const char *buffer_end= buffer + buffer_len;
+
+  for (; buffer < buffer_end; ++buffer)
+  {
+    char c;
+    if (isalpha(c=*buffer))
+    {
+      if (tolower(c) == 's')
+        return 1;
+      return 0;
+    }
+  }
+  return 0;
+}
+
+static my_bool is_slave_stmt(MYSQL *mysql, const char *buffer)
+{
+  unsigned long stmt_id= uint4korr(buffer);
+  LIST *stmt_list= mysql->stmts;
+
+  for (; stmt_list; stmt_list= stmt_list->next)
+  {
+    MYSQL_STMT *stmt= (MYSQL_STMT *)stmt_list->data;
+    if (stmt->stmt_id == stmt_id)
+      return 1;
+  }
+  return 0;
+}
+
+
+int repl_command(MYSQL *mysql,enum enum_server_command command, const char *arg,
+                     size_t length, 
+                     my_bool skipp_check __attribute__((unused)), 
+                     void *opt_arg __attribute__((unused)))
+{
+  REPL_DATA *data= (REPL_DATA *)mysql->extension->conn_hdlr->data; 
+
+  /* if we don't have slave or slave became unavailable root traffic to master */
+  if (!data->pvio[MARIADB_SLAVE] || !data->read_only)
+  {
+    SET_MASTER(mysql, data);
+    return 0;
+  }
+  switch(command) {
+    case COM_QUERY:
+    case COM_STMT_PREPARE:
+      if (is_slave_command(arg, length))
+        SET_SLAVE(mysql, data)
+      else
+        SET_MASTER(mysql,data)
+      break;
+    case COM_STMT_EXECUTE:
+    case COM_STMT_FETCH:
+      if (data->pvio[MARIADB_SLAVE]->mysql->stmts && is_slave_stmt(data->pvio[MARIADB_SLAVE]->mysql, arg))
+        SET_SLAVE(mysql, data)
+      else
+        SET_MASTER(mysql,data)
+      break;
+
+    default:
+      SET_MASTER(mysql,data)
+      break; 
+  }
+  return 0;
+}
+
+int repl_set_optionsv(MYSQL *mysql, unsigned int option, ...)
+{
+  REPL_DATA *data= (REPL_DATA *)mysql->extension->conn_hdlr->data;
+  va_list ap;
+  void *arg1;
+  int rc= 0;
+
+  va_start(ap, option);
+  arg1= va_arg(ap, void *);
+
+  switch(option) {
+  case MARIADB_OPT_CONNECTION_READ_ONLY:
+    data->read_only= *(my_bool *)arg1;
+    break;
+  default:
+    rc= -1;
+    break;
+  }
+  va_end(ap);
+  return(rc);
+}
diff --git a/libmariadb/plugins/io/CMakeLists.txt b/libmariadb/plugins/io/CMakeLists.txt
new file mode 100644
index 00000000..8c304c99
--- /dev/null
+++ b/libmariadb/plugins/io/CMakeLists.txt
@@ -0,0 +1,15 @@
+IF (WITH_CURL)
+  INCLUDE(FindCURL)
+  IF(CURL_FOUND)
+
+    ADD_DEFINITIONS(-DHAVE_REMOTEIO=1)
+    #remote io plugin
+    REGISTER_PLUGIN(TARGET remote_io
+                  TYPE MARIADB_CLIENT_PLUGIN_IO
+                  CONFIGURATIONS DYNAMIC STATIC OFF
+                  DEFAULT DYNAMIC
+                  SOURCES ${CC_SOURCE_DIR}/plugins/io/remote_io.c
+                  INCLUDES ${CURL_INCLUDE_DIR}
+                  LIBRARIES ${CURL_LIBRARIES})
+  ENDIF()
+ENDIF()
diff --git a/libmariadb/plugins/io/remote_io.c b/libmariadb/plugins/io/remote_io.c
new file mode 100644
index 00000000..c06ecacd
--- /dev/null
+++ b/libmariadb/plugins/io/remote_io.c
@@ -0,0 +1,453 @@
+/************************************************************************************
+ * Copyright (C) 2015 - 2018 MariaDB Corporation AB
+ * Copyright (c) 2003 Simtec Electronics
+ *
+ * Re-implemented by Vincent Sanders <vince@kyllikki.org> with extensive
+ * reference to original curl example code
+ *
+ * Rewritten for MariaDB Connector/C by Georg Richter <georg@mariadb.com>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *************************************************************************************/
+
+/*
+  This is a plugin for remote file access via libcurl.
+
+  The following URL types are supported:
+
+  http://
+  https://
+  ftp://
+  sftp://
+  ldap://
+  smb://
+*/
+
+#include <ma_global.h>
+#include <ma_sys.h>
+#include <mysql.h>
+#include <mysql/client_plugin.h>
+#include <string.h>
+#include <memory.h>
+
+#include <stdio.h>
+#include <string.h>
+#ifndef WIN32
+#include <sys/time.h>
+#else
+#pragma comment(lib, "Ws2_32.lib")
+#endif
+#include <stdlib.h>
+#include <errno.h>
+#include <mariadb/ma_io.h>
+ 
+/* Internal file structure */
+
+MA_FILE *ma_rio_open(const char *url,const char *operation);
+int ma_rio_close(MA_FILE *file);
+int ma_rio_feof(MA_FILE *file);
+size_t ma_rio_read(void *ptr, size_t size, size_t nmemb, MA_FILE *file);
+char * ma_rio_gets(char *ptr, size_t size, MA_FILE *file);
+
+int ma_rio_init(char *, size_t, int, va_list);
+int ma_rio_deinit(void);
+
+struct st_rio_methods ma_rio_methods= {
+  ma_rio_open,
+  ma_rio_close,
+  ma_rio_feof,
+  ma_rio_read,
+  ma_rio_gets
+};
+
+typedef struct
+{
+  CURL *curl;
+  size_t length,
+         offset;
+  uchar *buffer;
+  int in_progress;
+} MA_REMOTE_FILE;
+ 
+CURLM *multi_handle= NULL;
+
+#ifndef PLUGIN_DYNAMIC
+MARIADB_REMOTEIO_PLUGIN remote_io_client_plugin=
+#else
+MARIADB_REMOTEIO_PLUGIN _mysql_client_plugin_declaration_ =
+#endif
+{
+  MARIADB_CLIENT_REMOTEIO_PLUGIN,
+  MARIADB_CLIENT_REMOTEIO_PLUGIN_INTERFACE_VERSION,
+  "remote_io",
+  "Georg Richter",
+  "Remote IO plugin",
+  {0,1,0},
+  "LGPL",
+  NULL,
+  ma_rio_init, 
+  ma_rio_deinit,
+  NULL,
+  &ma_rio_methods
+mysql_end_client_plugin;
+
+/* {{{ ma_rio_init - Plugin initialization */
+int ma_rio_init(char *unused1 __attribute__((unused)),
+                size_t unused2 __attribute__((unused)),
+                int unused3 __attribute__((unused)),
+                va_list unused4 __attribute__((unused)))
+{
+  curl_global_init(CURL_GLOBAL_ALL);
+  if (!multi_handle)
+    multi_handle = curl_multi_init();
+  return 0;
+}
+/* }}} */
+
+/* {{{ ma_rio_deinit - Plugin deinitialization */
+int ma_rio_deinit(void)
+{
+  if (multi_handle)
+  {
+    curl_multi_cleanup(multi_handle);
+    multi_handle= NULL;
+  }
+  curl_global_cleanup();
+  return 0;
+}
+/* }}} */
+
+/* {{{ curl_write_callback */
+static size_t rio_write_callback(char *buffer,
+                                 size_t size,
+                                 size_t nitems,
+                                 void *ptr)
+{
+  size_t free_bytes;
+  char *tmp;
+
+  MA_FILE *file= (MA_FILE *)ptr; 
+  MA_REMOTE_FILE *curl_file = (MA_REMOTE_FILE *)file->ptr;
+  size *= nitems;
+ 
+  free_bytes= curl_file->length - curl_file->offset; 
+
+  /* check if we need to allocate more memory */ 
+  if (size > free_bytes) {
+    tmp= (char *)realloc((gptr)curl_file->buffer, curl_file->length + (size - free_bytes));
+    if (!tmp)
+      size= free_bytes;
+    else {
+      curl_file->length+= size - free_bytes;
+      curl_file->buffer= (unsigned char *)tmp;
+    }
+  }
+
+  /* copy buffer into MA_FILE structure */
+  memcpy((char *)curl_file->buffer + curl_file->offset, buffer, size);
+  curl_file->offset+= size;
+ 
+  return size;
+}
+/* }}} */
+ 
+/* use to attempt to fill the read buffer up to requested number of bytes */ 
+static int fill_buffer(MA_FILE *file, size_t want)
+{
+  fd_set fdread;
+  fd_set fdwrite;
+  fd_set fdexcep;
+  struct timeval timeout;
+  int rc;
+  CURLMcode mc; /* curl_multi_fdset() return code */
+  MA_REMOTE_FILE *rf= (MA_REMOTE_FILE *)file->ptr;
+ 
+  /* only attempt to fill buffer if transactions still running and buffer
+     doesn't exceed required size already */ 
+  if (!rf->in_progress || (rf->offset > want))
+    return 0;
+ 
+  /* try to fill buffer */ 
+  do {
+    int maxfd = -1;
+    long curl_timeo = -1;
+ 
+    FD_ZERO(&fdread);
+    FD_ZERO(&fdwrite);
+    FD_ZERO(&fdexcep);
+ 
+    /* set a suitable timeout to fail on */ 
+    timeout.tv_sec = 20; /* 20 seconds */ 
+    timeout.tv_usec = 0;
+ 
+    curl_multi_timeout(multi_handle, &curl_timeo);
+    if(curl_timeo >= 0) {
+      timeout.tv_sec = curl_timeo / 1000;
+      if(timeout.tv_sec > 1)
+        timeout.tv_sec = 1;
+      else
+        timeout.tv_usec = (curl_timeo % 1000) * 1000;
+    }
+ 
+    /* get file descriptors from the transfers */ 
+    mc = curl_multi_fdset(multi_handle, &fdread, &fdwrite, &fdexcep, &maxfd);
+ 
+    if(mc != CURLM_OK)
+    {
+      /* todo: error handling */
+      break;
+    }
+ 
+    /* On success the value of maxfd is guaranteed to be >= -1. We call
+       select(maxfd + 1, ...); specially in case of (maxfd == -1) there are
+       no fds ready yet so we call select(0, ...) */ 
+ 
+    if(maxfd == -1) {
+      struct timeval wait = { 0, 100 * 1000 }; /* 100ms */ 
+      rc = select(0, NULL, NULL, NULL, &wait);
+    }
+    else {
+      rc = select(maxfd+1, &fdread, &fdwrite, &fdexcep, &timeout);
+    }
+ 
+    switch(rc) {
+    case -1:
+      /* select error */ 
+      break;
+ 
+    case 0:
+    default:
+      /* timeout or readable/writable sockets */ 
+      curl_multi_perform(multi_handle, &rf->in_progress);
+      break;
+    }
+  } while(rf->in_progress && (rf->offset < want));
+  return 1;
+}
+ 
+/* use to remove want bytes from the front of a files buffer */ 
+static int use_buffer(MA_FILE *file,int want)
+{
+  MA_REMOTE_FILE *rf= (MA_REMOTE_FILE *)file->ptr;
+  /* sort out buffer */ 
+  if((rf->offset - want) <=0) {
+    /* ditch buffer - write will recreate */ 
+    if (rf->buffer)
+      free(rf->buffer);
+ 
+    rf->buffer=NULL;
+    rf->offset=0;
+    rf->length=0;
+  }
+  else {
+    /* move rest down make it available for later */ 
+    memmove(rf->buffer,
+            &rf->buffer[want],
+            (rf->offset - want));
+ 
+    rf->offset -= want;
+  }
+  return 0;
+}
+ 
+MA_FILE *ma_rio_open(const char *url,const char *operation)
+{
+  /* this code could check for URLs or types in the 'url' and
+     basically use the real fopen() for standard files */ 
+ 
+  MA_FILE *file;
+  MA_REMOTE_FILE *rf;
+  (void)operation;
+ 
+  if (!(file = (MA_FILE *)calloc(sizeof(MA_FILE), 1)))
+    return NULL;
+ 
+  file->type= MA_FILE_REMOTE;
+  if (!(file->ptr= rf= (MA_REMOTE_FILE *)calloc(sizeof(MA_REMOTE_FILE), 1)))
+  {
+    free(file);
+    return NULL; 
+  }
+  rf->curl = curl_easy_init();
+
+  if (curl_easy_setopt(rf->curl, CURLOPT_URL, url) ||
+      curl_easy_setopt(rf->curl, CURLOPT_WRITEDATA, file) ||
+      curl_easy_setopt(rf->curl, CURLOPT_VERBOSE, 0L) ||
+      curl_easy_setopt(rf->curl, CURLOPT_WRITEFUNCTION, rio_write_callback))
+  {
+    free(file);
+    free(rf);
+    return NULL;
+  }
+
+  curl_multi_add_handle(multi_handle, rf->curl);
+
+  /* lets start the fetch */ 
+  curl_multi_perform(multi_handle, &rf->in_progress);
+
+  if((rf->offset == 0) && (!rf->in_progress)) {
+    /* if in_progress is 0 now, we should return NULL */ 
+
+    /* make sure the easy handle is not in the multi handle anymore */ 
+    curl_multi_remove_handle(multi_handle, rf->curl);
+
+    /* cleanup */ 
+    curl_easy_cleanup(rf->curl);
+
+    free(file);
+
+    file = NULL;
+  }
+  return file;
+}
+ 
+int ma_rio_close(MA_FILE *file)
+{
+  int ret=0;/* default is good return */ 
+  MA_REMOTE_FILE *rf= (MA_REMOTE_FILE *)file->ptr;
+
+  switch(file->type) {
+    case MA_FILE_REMOTE:
+    curl_multi_remove_handle(multi_handle, rf->curl);
+ 
+    /* cleanup */
+    curl_easy_cleanup(rf->curl);
+    break;
+ 
+  default: /* unknown or supported type - oh dear */ 
+    ret=EOF;
+    errno=EBADF;
+    break;
+  }
+ 
+  if(rf->buffer)
+    free(rf->buffer);/* free any allocated buffer space */ 
+ 
+  free(rf);
+  free(file);
+ 
+  return ret;
+}
+ 
+int ma_rio_feof(MA_FILE *file)
+{
+  int ret=0;
+  MA_REMOTE_FILE *rf= (MA_REMOTE_FILE *)file->ptr;
+ 
+  switch(file->type) {
+  case MA_FILE_REMOTE:
+    if((rf->offset == 0) && (!rf->in_progress))
+      ret = 1;
+    break;
+ 
+  default: /* unknown or supported type - oh dear */ 
+    ret=-1;
+    errno=EBADF;
+    break;
+  }
+  return ret;
+}
+ 
+size_t ma_rio_read(void *ptr, size_t size, size_t nmemb, MA_FILE *file)
+{
+  size_t want;
+  MA_REMOTE_FILE *rf= (MA_REMOTE_FILE *)file->ptr;
+ 
+  switch(file->type) {
+  case MA_FILE_REMOTE:
+    want = nmemb * size;
+
+    fill_buffer(file,want);
+ 
+    /* check if there's data in the buffer - if not fill_buffer()
+     * either errored or EOF */ 
+    if(!rf->offset)
+      return 0;
+ 
+    /* ensure only available data is considered */ 
+    if(rf->offset < want)
+      want = rf->offset;
+ 
+    /* xfer data to caller */ 
+    memcpy(ptr, rf->buffer, want);
+ 
+    use_buffer(file,want);
+ 
+    want = want / size;     /* number of items */ 
+    break;
+ 
+  default: /* unknown or supported type - oh dear */ 
+    want=0;
+    errno=EBADF;
+    break;
+ 
+  }
+  return want;
+}
+ 
+char *ma_rio_gets(char *ptr, size_t size, MA_FILE *file)
+{
+  size_t want = size - 1;/* always need to leave room for zero termination */ 
+  size_t loop;
+ 
+  switch(file->type) {
+  case MA_FILE_REMOTE:
+  {
+    MA_REMOTE_FILE *rf= (MA_REMOTE_FILE *)file->ptr;
+    fill_buffer(file,want);
+ 
+    /* check if there's data in the buffer - if not fill either errored or
+     * EOF */ 
+    if(!rf->offset)
+      return NULL;
+ 
+    /* ensure only available data is considered */ 
+    if(rf->offset < want)
+      want = rf->offset;
+ 
+    /*buffer contains data */ 
+    /* look for newline or eof */ 
+    for(loop=0;loop < want;loop++) {
+      if(rf->buffer[loop] == '\n') {
+        want=loop+1;/* include newline */ 
+        break;
+      }
+    }
+ 
+    /* xfer data to caller */ 
+    memcpy(ptr, rf->buffer, want);
+    ptr[want]=0;/* always null terminate */ 
+ 
+    use_buffer(file,want);
+ 
+    break;
+  }
+ 
+  default: /* unknown or supported type - oh dear */ 
+    ptr=NULL;
+    errno=EBADF;
+    break;
+  }
+ 
+  return ptr;/*success */ 
+}
diff --git a/libmariadb/plugins/plugin.def b/libmariadb/plugins/plugin.def
new file mode 100644
index 00000000..70af9256
--- /dev/null
+++ b/libmariadb/plugins/plugin.def
@@ -0,0 +1,2 @@
+EXPORTS
+  _mysql_client_plugin_declaration_ DATA
diff --git a/libmariadb/plugins/pvio/CMakeLists.txt b/libmariadb/plugins/pvio/CMakeLists.txt
new file mode 100644
index 00000000..b74407a6
--- /dev/null
+++ b/libmariadb/plugins/pvio/CMakeLists.txt
@@ -0,0 +1,27 @@
+SET(PVIO_DIR ${CC_SOURCE_DIR}/plugins/pvio)
+
+INCLUDE_DIRECTORIES(${PVIO_DIR})
+INCLUDE_DIRECTORIES(${CC_SOURCE_DIR}/include)
+
+#native password
+REGISTER_PLUGIN(TARGET pvio_socket
+                TYPE MARIADB_CLIENT_PLUGIN_PVIO
+                CONFIGURATIONS STATIC DYNAMIC DEFAULT
+                DEFAULT STATIC
+                SOURCES ${CC_SOURCE_DIR}/plugins/pvio/pvio_socket.c)
+
+IF(WIN32)
+  # named pipe
+  REGISTER_PLUGIN(TARGET pvio_npipe
+                TYPE MARIADB_CLIENT_PLUGIN_PVIO
+                CONFIGURATIONS STATIC DYNAMIC DEFAULT
+                DEFAULT STATIC
+                SOURCES ${CC_SOURCE_DIR}/plugins/pvio/pvio_npipe.c)
+
+  # shared memory
+  REGISTER_PLUGIN(TARGET pvio_shmem
+                TYPE MARIADB_CLIENT_PLUGIN_PVIO
+                CONFIGURATIONS STATIC DYNAMIC DEFAULT
+                DEFAULT DYNAMIC
+                SOURCES ${CC_SOURCE_DIR}/plugins/pvio/pvio_shmem.c)
+ENDIF()
diff --git a/libmariadb/plugins/pvio/pvio_npipe.c b/libmariadb/plugins/pvio/pvio_npipe.c
new file mode 100644
index 00000000..17c59cef
--- /dev/null
+++ b/libmariadb/plugins/pvio/pvio_npipe.c
@@ -0,0 +1,359 @@
+/************************************************************************************
+    Copyright (C) 2015 Georg Richter and MariaDB Corporation AB
+   
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public
+   License as published by the Free Software Foundation; either
+   version 2 of the License, or (at your option) any later version.
+   
+   This library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+   
+   You should have received a copy of the GNU Library General Public
+   License along with this library; if not see <http://www.gnu.org/licenses>
+   or write to the Free Software Foundation, Inc., 
+   51 Franklin St., Fifth Floor, Boston, MA 02110, USA
+
+*************************************************************************************/
+
+/* MariaDB virtual IO plugin for Windows named pipe communication */
+
+#ifdef _WIN32
+
+#include <ma_global.h>
+#include <ma_sys.h>
+#include <errmsg.h>
+#include <mysql.h>
+#include <mysql/client_plugin.h>
+#include <string.h>
+#include <ma_string.h>
+
+/* Function prototypes */
+my_bool pvio_npipe_set_timeout(MARIADB_PVIO *pvio, enum enum_pvio_timeout type, int timeout);
+int pvio_npipe_get_timeout(MARIADB_PVIO *pvio, enum enum_pvio_timeout type);
+ssize_t pvio_npipe_read(MARIADB_PVIO *pvio, uchar *buffer, size_t length);
+ssize_t pvio_npipe_write(MARIADB_PVIO *pvio, const uchar *buffer, size_t length);
+
+my_bool pvio_npipe_connect(MARIADB_PVIO *pvio, MA_PVIO_CINFO *cinfo);
+my_bool pvio_npipe_close(MARIADB_PVIO *pvio);
+int pvio_npipe_fast_send(MARIADB_PVIO *pvio);
+int pvio_npipe_keepalive(MARIADB_PVIO *pvio);
+my_bool pvio_npipe_get_handle(MARIADB_PVIO *pvio, void *handle);
+my_bool pvio_npipe_is_blocking(MARIADB_PVIO *pvio);
+int pvio_npipe_shutdown(MARIADB_PVIO *pvio);
+my_bool pvio_npipe_is_alive(MARIADB_PVIO *pvio);
+
+struct st_ma_pvio_methods pvio_npipe_methods= {
+  pvio_npipe_set_timeout,
+  pvio_npipe_get_timeout,
+  pvio_npipe_read,
+  NULL,
+  pvio_npipe_write,
+  NULL,
+  NULL,
+  NULL,
+  pvio_npipe_connect,
+  pvio_npipe_close,
+  pvio_npipe_fast_send,
+  pvio_npipe_keepalive,
+  pvio_npipe_get_handle,
+  pvio_npipe_is_blocking,
+  pvio_npipe_is_alive,
+  NULL,
+  pvio_npipe_shutdown
+};
+
+#ifndef PLUGIN_DYNAMIC
+MARIADB_PVIO_PLUGIN pvio_npipe_client_plugin =
+#else
+MARIADB_PVIO_PLUGIN _mysql_client_plugin_declaration_ =
+#endif
+{
+  MARIADB_CLIENT_PVIO_PLUGIN,
+  MARIADB_CLIENT_PVIO_PLUGIN_INTERFACE_VERSION,
+  "pvio_npipe",
+  "Georg Richter",
+  "MariaDB virtual IO plugin for named pipe connection",
+  {1, 0, 0},
+  "LGPL",
+  NULL,
+  NULL,
+  NULL,
+  NULL,
+  &pvio_npipe_methods
+};
+
+struct st_pvio_npipe {
+  HANDLE pipe;
+  OVERLAPPED overlapped;
+  MYSQL *mysql;
+};
+
+my_bool pvio_npipe_set_timeout(MARIADB_PVIO *pvio, enum enum_pvio_timeout type, int timeout)
+{
+  int timeout_ms;
+
+  if (!pvio)
+    return 1;
+  if (timeout > INT_MAX/1000)
+    timeout_ms= -1;
+  else if (timeout <=0)
+    timeout_ms= -1;
+  else
+    timeout_ms = timeout*1000;
+
+  pvio->timeout[type]= timeout_ms;
+  return 0;
+}
+
+int pvio_npipe_get_timeout(MARIADB_PVIO *pvio, enum enum_pvio_timeout type)
+{
+  if (!pvio)
+    return -1;
+  return pvio->timeout[type] / 1000;
+}
+
+static BOOL complete_io(HANDLE file, OVERLAPPED *ov, BOOL ret, DWORD timeout, DWORD *size)
+{
+  if (ret)
+    timeout = 0; /* IO completed successfully, do not WaitForSingleObject */
+  else
+  {
+    assert(timeout);
+    if (GetLastError() != ERROR_IO_PENDING)
+      return FALSE;
+  }
+
+  if (timeout)
+  {
+    HANDLE wait_handle= ov->hEvent;
+    assert(wait_handle && (wait_handle != INVALID_HANDLE_VALUE));
+
+    DWORD wait_ret= WaitForSingleObject(wait_handle, timeout);
+    switch (wait_ret)
+    {
+      case WAIT_OBJECT_0:
+        break;
+      case WAIT_TIMEOUT:
+        CancelIoEx(file, ov);
+        SetLastError(ERROR_TIMEOUT);
+        return FALSE;
+      default:
+        /* WAIT_ABANDONED or WAIT_FAILED unexpected. */
+        assert(0);
+        return FALSE;
+    }
+  }
+
+  return GetOverlappedResult(file, ov, size, FALSE);
+}
+
+ssize_t pvio_npipe_read(MARIADB_PVIO *pvio, uchar *buffer, size_t length)
+{
+  BOOL ret;
+  ssize_t r= -1;
+  struct st_pvio_npipe *cpipe= NULL;
+  DWORD size;
+
+  if (!pvio || !pvio->data)
+    return -1;
+
+  cpipe= (struct st_pvio_npipe *)pvio->data;
+
+  ret= ReadFile(cpipe->pipe, buffer, (DWORD)length, NULL, &cpipe->overlapped);
+  ret= complete_io(cpipe->pipe, &cpipe->overlapped, ret, pvio->timeout[PVIO_READ_TIMEOUT], &size);
+  r= ret? (ssize_t) size:-1;
+
+  return r;
+}
+
+ssize_t pvio_npipe_write(MARIADB_PVIO *pvio, const uchar *buffer, size_t length)
+{
+  ssize_t r= -1;
+  struct st_pvio_npipe *cpipe= NULL;
+  BOOL ret;
+  DWORD size;
+
+  if (!pvio || !pvio->data)
+    return -1;
+
+  cpipe= (struct st_pvio_npipe *)pvio->data;
+
+  ret= WriteFile(cpipe->pipe, buffer, (DWORD)length, NULL , &cpipe->overlapped);
+  ret= complete_io(cpipe->pipe, &cpipe->overlapped, ret, pvio->timeout[PVIO_WRITE_TIMEOUT], &size);
+  r= ret ? (ssize_t)size : -1;
+  return r;
+}
+
+
+int pvio_npipe_keepalive(MARIADB_PVIO *pvio)
+{
+  /* keep alive is used for TCP/IP connections only */
+  return 0;
+}
+
+int pvio_npipe_fast_send(MARIADB_PVIO *pvio)
+{
+  /* not supported */
+  return 0;
+}
+my_bool pvio_npipe_connect(MARIADB_PVIO *pvio, MA_PVIO_CINFO *cinfo)
+{
+  struct st_pvio_npipe *cpipe= NULL;
+
+  if (!pvio || !cinfo)
+    return 1;
+
+  /* if connect timeout is set, we will overwrite read/write timeout */
+  if (pvio->timeout[PVIO_CONNECT_TIMEOUT])
+  {
+    pvio->timeout[PVIO_READ_TIMEOUT]= pvio->timeout[PVIO_WRITE_TIMEOUT]= pvio->timeout[PVIO_CONNECT_TIMEOUT];
+  }
+
+  if (!(cpipe= (struct st_pvio_npipe *)LocalAlloc(LMEM_ZEROINIT, sizeof(struct st_pvio_npipe))))
+  {
+    PVIO_SET_ERROR(cinfo->mysql, CR_OUT_OF_MEMORY, "HY000", 0, "");
+    return 1;
+  }
+  pvio->data= (void *)cpipe;
+  cpipe->pipe= INVALID_HANDLE_VALUE;
+  pvio->mysql= cinfo->mysql;
+  pvio->type= cinfo->type;
+
+  if (cinfo->type == PVIO_TYPE_NAMEDPIPE)
+  {
+    char szPipeName[MAX_PATH];
+    ULONGLONG deadline;
+    LONGLONG wait_ms;
+    DWORD backoff= 0; /* Avoid busy wait if ERROR_PIPE_BUSY.*/
+    if ( ! cinfo->unix_socket || (cinfo->unix_socket)[0] == 0x00)
+      cinfo->unix_socket = MARIADB_NAMEDPIPE;
+    if (!cinfo->host || !strcmp(cinfo->host,LOCAL_HOST))
+      cinfo->host=LOCAL_HOST_NAMEDPIPE;
+
+    szPipeName[MAX_PATH - 1]= 0;
+    snprintf(szPipeName, MAX_PATH - 1, "\\\\%s\\pipe\\%s", cinfo->host, cinfo->unix_socket);
+
+    if (pvio->timeout[PVIO_CONNECT_TIMEOUT] > 0)
+      deadline = GetTickCount64() + pvio->timeout[PVIO_CONNECT_TIMEOUT];
+    else
+      deadline = INFINITE;
+
+    while (1)
+    {
+      if ((cpipe->pipe = CreateFile(szPipeName,
+                                    GENERIC_READ |
+                                    GENERIC_WRITE,
+                                    0,               /* no sharing */
+                                    NULL,            /* default security attributes */
+                                    OPEN_EXISTING,
+                                    FILE_FLAG_OVERLAPPED,
+                                    NULL)) != INVALID_HANDLE_VALUE)
+        break;
+
+      if (GetLastError() != ERROR_PIPE_BUSY)
+      {
+        pvio->set_error(pvio->mysql, CR_NAMEDPIPEOPEN_ERROR, "HY000", 0,
+                       cinfo->host, cinfo->unix_socket, GetLastError());
+        goto end;
+      }
+
+      Sleep(backoff);
+      if (!backoff)
+        backoff = 1;
+
+      wait_ms = deadline - GetTickCount64();
+      if (wait_ms > INFINITE)
+        wait_ms = INFINITE;
+
+      if ((wait_ms <= 0) || !WaitNamedPipe(szPipeName, (DWORD)wait_ms))
+      {
+        pvio->set_error(pvio->mysql, CR_NAMEDPIPEWAIT_ERROR, "HY000", 0,
+                       cinfo->host, cinfo->unix_socket, ERROR_TIMEOUT);
+        goto end;
+      }
+    }
+
+
+    if (!(cpipe->overlapped.hEvent= CreateEvent(NULL, FALSE, FALSE, NULL)))
+    {
+      pvio->set_error(pvio->mysql, CR_EVENT_CREATE_FAILED, "HY000", 0,
+                     GetLastError());
+      goto end;
+    }
+    return 0;
+  }
+end:
+  if (cpipe)
+  {
+    if (cpipe->pipe != INVALID_HANDLE_VALUE)
+      CloseHandle(cpipe->pipe);
+    LocalFree(cpipe);
+    pvio->data= NULL;
+  }
+  return 1;
+}
+
+my_bool pvio_npipe_close(MARIADB_PVIO *pvio)
+{
+  struct st_pvio_npipe *cpipe= NULL;
+  int r= 0;
+
+  if (!pvio)
+    return 1;
+
+  if (pvio->data)
+  {
+    cpipe= (struct st_pvio_npipe *)pvio->data;
+    CloseHandle(cpipe->overlapped.hEvent);
+    if (cpipe->pipe != INVALID_HANDLE_VALUE)
+    {
+      CloseHandle(cpipe->pipe);
+      cpipe->pipe= INVALID_HANDLE_VALUE;
+    }
+    LocalFree(pvio->data);
+    pvio->data= NULL;
+  }
+  return r;
+}
+
+my_bool pvio_npipe_get_handle(MARIADB_PVIO *pvio, void *handle)
+{
+  if (pvio && pvio->data)
+  {
+    *(HANDLE *)handle= ((struct st_pvio_npipe *)pvio->data)->pipe;
+    return 0;
+  }
+  return 1;
+} 
+
+my_bool pvio_npipe_is_blocking(MARIADB_PVIO *pvio)
+{
+  return 1;
+}
+
+int pvio_npipe_shutdown(MARIADB_PVIO *pvio)
+{
+  HANDLE h;
+  if (pvio_npipe_get_handle(pvio, &h) == 0)
+  {
+    return(CancelIoEx(h, NULL) ? 0 : 1);
+  }
+  return 1;
+}
+
+my_bool pvio_npipe_is_alive(MARIADB_PVIO *pvio)
+{
+  HANDLE handle;
+  if (!pvio || !pvio->data)
+    return FALSE;
+
+  handle= ((struct st_pvio_npipe *)pvio->data)->pipe;
+  /* Copy data from named pipe without removing it */
+  if (PeekNamedPipe(handle, NULL, 0, NULL, NULL, NULL))
+    return TRUE;
+  return test(GetLastError() != ERROR_BROKEN_PIPE);
+}
+#endif
diff --git a/libmariadb/plugins/pvio/pvio_plugin.def b/libmariadb/plugins/pvio/pvio_plugin.def
new file mode 100644
index 00000000..70af9256
--- /dev/null
+++ b/libmariadb/plugins/pvio/pvio_plugin.def
@@ -0,0 +1,2 @@
+EXPORTS
+  _mysql_client_plugin_declaration_ DATA
diff --git a/libmariadb/plugins/pvio/pvio_shmem.c b/libmariadb/plugins/pvio/pvio_shmem.c
new file mode 100644
index 00000000..f412393b
--- /dev/null
+++ b/libmariadb/plugins/pvio/pvio_shmem.c
@@ -0,0 +1,469 @@
+/************************************************************************************
+    Copyright (C) 2015 Georg Richter and MariaDB Corporation AB
+   
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public
+   License as published by the Free Software Foundation; either
+   version 2 of the License, or (at your option) any later version.
+   
+   This library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+   
+   You should have received a copy of the GNU Library General Public
+   License along with this library; if not see <http://www.gnu.org/licenses>
+   or write to the Free Software Foundation, Inc., 
+   51 Franklin St., Fifth Floor, Boston, MA 02110, USA
+
+*************************************************************************************/
+/* MariaDB virtual IO plugin for Windows shared memory communication */
+
+#ifdef _WIN32
+
+#include <ma_global.h>
+#include <ma_sys.h>
+#include <errmsg.h>
+#include <mysql.h>
+#include <mysql/client_plugin.h>
+#include <string.h>
+#include <ma_string.h>
+
+#define PVIO_SHM_BUFFER_SIZE (16000 + 4)
+
+my_bool pvio_shm_set_timeout(MARIADB_PVIO *pvio, enum enum_pvio_timeout type, int timeout);
+int pvio_shm_get_timeout(MARIADB_PVIO *pvio, enum enum_pvio_timeout type);
+ssize_t pvio_shm_read(MARIADB_PVIO *pvio, uchar *buffer, size_t length);
+ssize_t pvio_shm_write(MARIADB_PVIO *pvio, const uchar *buffer, size_t length);
+int pvio_shm_wait_io_or_timeout(MARIADB_PVIO *pvio, my_bool is_read, int timeout);
+int pvio_shm_blocking(MARIADB_PVIO *pvio, my_bool value, my_bool *old_value);
+my_bool pvio_shm_connect(MARIADB_PVIO *pvio, MA_PVIO_CINFO *cinfo);
+my_bool pvio_shm_close(MARIADB_PVIO *pvio);
+int pvio_shm_shutdown(MARIADB_PVIO *pvio);
+my_bool pvio_shm_is_alive(MARIADB_PVIO *pvio);
+my_bool pvio_shm_get_handle(MARIADB_PVIO *pvio, void *handle);
+
+struct st_ma_pvio_methods pvio_shm_methods= {
+  pvio_shm_set_timeout,
+  pvio_shm_get_timeout,
+  pvio_shm_read,
+  NULL,
+  pvio_shm_write,
+  NULL,
+  pvio_shm_wait_io_or_timeout,
+  pvio_shm_blocking,
+  pvio_shm_connect,
+  pvio_shm_close,
+  NULL,
+  NULL,
+  pvio_shm_get_handle,
+  NULL,
+  pvio_shm_is_alive,
+  NULL,
+  pvio_shm_shutdown
+};
+
+#ifndef PLUGIN_DYNAMIC
+MARIADB_PVIO_PLUGIN pvio_shmem_client_plugin=
+#else
+MARIADB_PVIO_PLUGIN _mysql_client_plugin_declaration_=
+#endif
+{
+  MARIADB_CLIENT_PVIO_PLUGIN,
+  MARIADB_CLIENT_PVIO_PLUGIN_INTERFACE_VERSION,
+  "pvio_shmem",
+  "Georg Richter",
+  "MariaDB virtual IO plugin for Windows shared memory communication",
+  {1, 0, 0},
+  "LGPPL",
+  NULL,
+  NULL,
+  NULL,
+  NULL,
+  &pvio_shm_methods,
+ 
+};
+
+enum enum_shm_events
+{
+  PVIO_SHM_SERVER_WROTE= 0,
+  PVIO_SHM_SERVER_READ,
+  PVIO_SHM_CLIENT_WROTE,
+  PVIO_SHM_CLIENT_READ,
+  PVIO_SHM_CONNECTION_CLOSED
+};
+
+typedef struct {
+  HANDLE event[5];
+  HANDLE file_map;
+  LPVOID *map;
+  char *read_pos;
+  size_t buffer_size;
+} PVIO_SHM;
+
+const char *StrEvent[]= {"SERVER_WROTE", "SERVER_READ", "CLIENT_WROTE", "CLIENT_READ", "CONNECTION_CLOSED"};
+
+struct st_pvio_shm {
+  char *shm_name;
+};
+
+my_bool pvio_shm_set_timeout(MARIADB_PVIO *pvio, enum enum_pvio_timeout type, int timeout)
+{
+  if (!pvio)
+    return 1;
+  pvio->timeout[type]= (timeout > 0) ? timeout * 1000 : INFINITE;
+  return 0;
+}
+
+int pvio_shm_get_timeout(MARIADB_PVIO *pvio, enum enum_pvio_timeout type)
+{
+  if (!pvio)
+    return -1;
+  return pvio->timeout[type] / 1000;
+}
+
+ssize_t pvio_shm_read(MARIADB_PVIO *pvio, uchar *buffer, size_t length)
+{
+  PVIO_SHM *pvio_shm= (PVIO_SHM *)pvio->data;
+  size_t copy_size= length;
+  HANDLE events[2];
+  
+  if (!pvio_shm)
+    return -1;
+
+  /* we need to wait for write and close events */
+  if (!pvio_shm->buffer_size)
+  {
+    events[0]= pvio_shm->event[PVIO_SHM_CONNECTION_CLOSED];
+    events[1]= pvio_shm->event[PVIO_SHM_SERVER_WROTE];
+
+    switch(WaitForMultipleObjects(2, events, 0, pvio->timeout[PVIO_READ_TIMEOUT]))
+    {
+    case WAIT_OBJECT_0: /* server closed connection */
+      SetLastError(ERROR_GRACEFUL_DISCONNECT);
+      return -1;
+    case WAIT_OBJECT_0 +1: /* server_wrote event */
+      break;
+    case WAIT_TIMEOUT:
+      SetLastError(ETIMEDOUT);
+    default:
+      return -1;
+    }
+    /* server sent data */
+    pvio_shm->read_pos= (char *)pvio_shm->map;
+    pvio_shm->buffer_size= uint4korr(pvio_shm->read_pos);
+    pvio_shm->read_pos+= 4;
+  }
+
+  if (pvio_shm->buffer_size < copy_size)
+    copy_size= pvio_shm->buffer_size;
+  
+  if (copy_size)
+  {
+    memcpy(buffer, (uchar *)pvio_shm->read_pos, pvio_shm->buffer_size);
+    pvio_shm->read_pos+= copy_size;
+    pvio_shm->buffer_size-= copy_size;
+  }
+
+  /* we need to read again */
+  if (!pvio_shm->buffer_size)
+    if (!SetEvent(pvio_shm->event[PVIO_SHM_CLIENT_READ]))
+      return -1;
+
+  return (ssize_t)copy_size;
+}
+
+ssize_t pvio_shm_write(MARIADB_PVIO *pvio, const uchar *buffer, size_t length)
+{
+  HANDLE events[2];
+  PVIO_SHM *pvio_shm= (PVIO_SHM *)pvio->data;
+  size_t bytes_to_write= length;
+  uchar *buffer_pos= (uchar *)buffer;
+  
+  if (!pvio_shm)
+    return -1;
+
+  events[0]= pvio_shm->event[PVIO_SHM_CONNECTION_CLOSED];
+  events[1]= pvio_shm->event[PVIO_SHM_SERVER_READ];
+
+  while (bytes_to_write)
+  {
+    size_t pkt_length;
+    switch (WaitForMultipleObjects(2, events, 0, pvio->timeout[PVIO_WRITE_TIMEOUT])) {
+    case WAIT_OBJECT_0: /* connection closed */
+      SetLastError(ERROR_GRACEFUL_DISCONNECT);
+      return -1;
+    case WAIT_OBJECT_0 + 1: /* server_read */
+      break;
+    case WAIT_TIMEOUT:
+      SetLastError(ETIMEDOUT);
+    default:
+      return -1;
+    }
+    pkt_length= MIN(PVIO_SHM_BUFFER_SIZE, length);
+    int4store(pvio_shm->map, pkt_length);
+    memcpy((uchar *)pvio_shm->map + 4, buffer_pos, length);
+    buffer_pos+= length;
+    bytes_to_write-= length;
+
+    if (!SetEvent(pvio_shm->event[PVIO_SHM_CLIENT_WROTE]))
+      return -1;
+  }
+  return (ssize_t)length;
+}
+
+
+int pvio_shm_wait_io_or_timeout(MARIADB_PVIO *pvio, my_bool is_read, int timeout)
+{
+  return 0;
+}
+
+int pvio_shm_blocking(MARIADB_PVIO *pvio, my_bool block, my_bool *previous_mode)
+{
+  /* not supported */
+  return 0;
+}
+
+int pvio_shm_keepalive(MARIADB_PVIO *pvio)
+{
+  /* not supported */
+  return 0;
+}
+
+int pvio_shm_fast_send(MARIADB_PVIO *pvio)
+{
+  /* not supported */
+  return 0;
+}
+
+my_bool pvio_shm_connect(MARIADB_PVIO *pvio, MA_PVIO_CINFO *cinfo)
+{
+  const char *base_memory_name;
+  char *prefixes[]= {"", "Global\\", NULL};
+  char *shm_name, *shm_suffix, *shm_prefix;
+  uchar i= 0;
+  int len;
+  int cid;
+  DWORD dwDesiredAccess= EVENT_MODIFY_STATE | SYNCHRONIZE;
+  HANDLE hdlConnectRequest= NULL,
+         hdlConnectRequestAnswer= NULL,
+         file_map= NULL;
+  LPVOID map= NULL;
+  PVIO_SHM *pvio_shm= (PVIO_SHM*)LocalAlloc(LMEM_ZEROINIT, sizeof(PVIO_SHM)); 
+
+  if (!pvio_shm)
+  {
+    PVIO_SET_ERROR(cinfo->mysql, CR_OUT_OF_MEMORY, "HY000", 0, "");
+    return 0;
+  }
+
+  /* MariaDB server constructs the event name as follows:
+     "Global\\base_memory_name" or
+     "\\base_memory_name"
+   */
+ 
+
+  base_memory_name= (cinfo->host) ? cinfo->host : SHM_DEFAULT_NAME;
+
+  if (!(shm_name= (char *)LocalAlloc(LMEM_ZEROINIT, strlen(base_memory_name) + 40)))
+  {
+    PVIO_SET_ERROR(cinfo->mysql, CR_OUT_OF_MEMORY, "HY000", 0, "");
+    goto error;
+  }
+
+  /* iterate through prefixes */
+  while (prefixes[i])
+  {
+    len= sprintf(shm_name, "%s%s_", prefixes[i], base_memory_name);
+    shm_suffix= shm_name + len;
+    strcpy(shm_suffix, "CONNECT_REQUEST");
+    if ((hdlConnectRequest= OpenEvent(dwDesiredAccess, 0, shm_name)))
+    {
+      /* save prefix to prevent further loop */
+      shm_prefix= prefixes[i];
+      break;
+    }
+    i++;
+  }
+  if (!hdlConnectRequest)
+  {
+    PVIO_SET_ERROR(cinfo->mysql, CR_SHARED_MEMORY_CONNECT_ERROR, "HY000", 0, "Opening CONNECT_REQUEST event failed", GetLastError());
+    goto error;
+  }
+
+  strcpy(shm_suffix, "CONNECT_ANSWER");
+  if (!(hdlConnectRequestAnswer= OpenEvent(dwDesiredAccess, 0, shm_name)))
+  {
+    PVIO_SET_ERROR(cinfo->mysql, CR_SHARED_MEMORY_CONNECT_ERROR, "HY000", 0, "Opening CONNECT_ANSWER event failed", GetLastError());
+    goto error;
+  }
+  
+  /* get connection id, so we can build the filename used for connection */
+  strcpy(shm_suffix, "CONNECT_DATA");
+  if (!(file_map= OpenFileMapping(FILE_MAP_WRITE, 0, shm_name)))
+  {
+    PVIO_SET_ERROR(cinfo->mysql, CR_SHARED_MEMORY_CONNECT_ERROR, "HY000", 0, "OpenFileMapping failed", GetLastError());
+    goto error;
+  }
+
+  /* try to get first 4 bytes, which represents connection_id */
+  if (!(map= MapViewOfFile(file_map, FILE_MAP_WRITE, 0, 0, sizeof(cid))))
+  {
+    PVIO_SET_ERROR(cinfo->mysql, CR_SHARED_MEMORY_CONNECT_ERROR, "HY000", 0, "Reading connection_id failed", GetLastError());
+    goto error;
+  }
+
+  /* notify server */
+  if (!SetEvent(hdlConnectRequest))
+  {
+    PVIO_SET_ERROR(cinfo->mysql, CR_SHARED_MEMORY_CONNECT_ERROR, "HY000", 0, "Failed sending connection request", GetLastError());
+    goto error;
+  }
+
+  /* Wait for server answer */
+  switch(WaitForSingleObject(hdlConnectRequestAnswer, pvio->timeout[PVIO_CONNECT_TIMEOUT])) {
+  case WAIT_ABANDONED:
+    PVIO_SET_ERROR(cinfo->mysql, CR_SHARED_MEMORY_CONNECT_ERROR, "HY000", 0, "Mutex was not released in time", GetLastError());
+    goto error;
+    break;
+  case WAIT_FAILED:
+    PVIO_SET_ERROR(cinfo->mysql, CR_SHARED_MEMORY_CONNECT_ERROR, "HY000", 0, "Operation wait failed", GetLastError());
+    goto error;
+    break;
+  case WAIT_TIMEOUT:
+    PVIO_SET_ERROR(cinfo->mysql, CR_SHARED_MEMORY_CONNECT_ERROR, "HY000", 0, "Operation timed out", GetLastError());
+    goto error;
+    break;
+  case WAIT_OBJECT_0:
+    break;
+  default:
+    PVIO_SET_ERROR(cinfo->mysql, CR_SHARED_MEMORY_CONNECT_ERROR, "HY000", 0, "Wait for server failed", GetLastError());
+    break;
+  }
+
+  cid= uint4korr(map);
+
+  len= sprintf(shm_name, "%s%s_%d_", shm_prefix, base_memory_name, cid);
+  shm_suffix= shm_name + len;
+  
+  strcpy(shm_suffix, "DATA");
+  pvio_shm->file_map= OpenFileMapping(FILE_MAP_WRITE, 0, shm_name);
+  if (pvio_shm->file_map == NULL)
+  {
+    PVIO_SET_ERROR(cinfo->mysql, CR_SHARED_MEMORY_CONNECT_ERROR, "HY000", 0, "OpenFileMapping failed", GetLastError());
+    goto error;
+  }
+  if (!(pvio_shm->map= MapViewOfFile(pvio_shm->file_map, FILE_MAP_WRITE, 0, 0, PVIO_SHM_BUFFER_SIZE)))
+  {
+    PVIO_SET_ERROR(cinfo->mysql, CR_SHARED_MEMORY_CONNECT_ERROR, "HY000", 0, "MapViewOfFile failed", GetLastError());
+    goto error;
+  }
+
+  for (i=0; i < 5; i++)
+  {
+    strcpy(shm_suffix, StrEvent[i]);
+    if (!(pvio_shm->event[i]= OpenEvent(dwDesiredAccess, 0, shm_name)))
+    {
+      PVIO_SET_ERROR(cinfo->mysql, CR_SHARED_MEMORY_CONNECT_ERROR, "HY000", 0, "Couldn't create event", GetLastError());
+      goto error;
+    }
+  }
+  /* we will first read from server */
+  SetEvent(pvio_shm->event[PVIO_SHM_SERVER_READ]);
+
+error:
+  if (hdlConnectRequest)
+    CloseHandle(hdlConnectRequest);
+  if (hdlConnectRequestAnswer)
+    CloseHandle(hdlConnectRequestAnswer);
+  if (shm_name)
+    LocalFree(shm_name);
+  if (map)
+    UnmapViewOfFile(map);
+  if (file_map)
+    CloseHandle(file_map);
+  if (pvio_shm)
+  {
+    /* check if all events are set */
+    if (pvio_shm->event[4])
+    {
+      pvio->data= (void *)pvio_shm;
+      pvio->mysql= cinfo->mysql;
+      pvio->type= cinfo->type;
+      pvio_shm->read_pos= (char *)pvio_shm->map;
+      pvio->mysql->net.pvio= pvio;
+      return 0;
+    }
+    for (i=0;i < 5; i++)
+      if (pvio_shm->event[i])
+        CloseHandle(pvio_shm->event[i]);
+    if (pvio_shm->map)
+      UnmapViewOfFile(pvio_shm->map);
+    if (pvio_shm->file_map)
+      CloseHandle(pvio_shm->file_map);
+    LocalFree(pvio_shm);
+  }
+  return 1;
+
+}
+
+my_bool pvio_shm_close(MARIADB_PVIO *pvio)
+{
+  PVIO_SHM *pvio_shm= (PVIO_SHM *)pvio->data;
+  int i;
+
+  if (!pvio_shm)
+    return 1;
+
+  /* notify server */
+  SetEvent(pvio_shm->event[PVIO_SHM_CONNECTION_CLOSED]);
+
+  UnmapViewOfFile(pvio_shm->map);
+  CloseHandle(pvio_shm->file_map);
+
+  for (i=0; i < 5; i++)
+    CloseHandle(pvio_shm->event[i]);
+
+  LocalFree(pvio_shm);
+  pvio->data= NULL;
+  return 0;
+}
+
+my_bool pvio_shm_get_socket(MARIADB_PVIO *pvio, void *handle)
+{
+  return 1;
+} 
+
+my_bool pvio_shm_is_blocking(MARIADB_PVIO *pvio)
+{
+  return 1;
+}
+
+int pvio_shm_shutdown(MARIADB_PVIO *pvio)
+{
+  PVIO_SHM *pvio_shm= (PVIO_SHM *)pvio->data;
+  if (pvio_shm)
+    return (SetEvent(pvio_shm->event[PVIO_SHM_CONNECTION_CLOSED]) ? 0 : 1);
+  return 1;
+}
+
+my_bool pvio_shm_is_alive(MARIADB_PVIO *pvio)
+{
+  PVIO_SHM *pvio_shm;
+  if (!pvio || !pvio->data)
+    return FALSE;
+  pvio_shm= (PVIO_SHM *)pvio->data;
+  return WaitForSingleObject(pvio_shm->event[PVIO_SHM_CONNECTION_CLOSED], 0)!=WAIT_OBJECT_0;
+}
+
+my_bool pvio_shm_get_handle(MARIADB_PVIO *pvio, void *handle)
+{
+
+  *(HANDLE **)handle= 0;
+  if (!pvio || !pvio->data)
+    return FALSE;
+  *(HANDLE **)handle= ((PVIO_SHM*)pvio->data)->event;
+  return TRUE;
+}
+#endif
+
diff --git a/libmariadb/plugins/pvio/pvio_socket.c b/libmariadb/plugins/pvio/pvio_socket.c
new file mode 100644
index 00000000..550fb831
--- /dev/null
+++ b/libmariadb/plugins/pvio/pvio_socket.c
@@ -0,0 +1,1165 @@
+/************************************************************************************
+   Copyright (C) 2015,2016 MariaDB Corporation AB,
+   
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public
+   License as published by the Free Software Foundation; either
+   version 2 of the License, or (at your option) any later version.
+   
+   This library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+   
+   You should have received a copy of the GNU Library General Public
+   License along with this library; if not see <http://www.gnu.org/licenses>
+   or write to the Free Software Foundation, Inc., 
+   51 Franklin St., Fifth Floor, Boston, MA 02110, USA
+*************************************************************************************/
+
+/* 
+   MariaDB virtual IO plugin for socket communication:
+
+   The plugin handles connections via unix and network sockets. it is enabled by
+   default and compiled into Connector/C.
+*/
+
+#include <ma_global.h>
+#include <ma_sys.h>
+#include <errmsg.h>
+#include <mysql.h>
+#include <mysql/client_plugin.h>
+#include <ma_context.h>
+#include <mariadb_async.h>
+#include <ma_common.h>
+#include <string.h>
+#include <time.h>
+#ifndef _WIN32
+#ifdef HAVE_SYS_UN_H
+#include <sys/un.h>
+#endif
+#ifdef HAVE_POLL
+#include <sys/poll.h>
+#endif
+#ifdef HAVE_SYS_IOCTL_H
+#include <sys/ioctl.h>
+#endif
+#ifdef HAVE_FCNTL_H
+#include <fcntl.h>
+#endif
+#include <netinet/in_systm.h>
+#include <netinet/in.h>
+#include <netinet/ip.h>
+#include <netdb.h>
+#include <netinet/tcp.h>
+#define IS_SOCKET_EINTR(err) ((err) == SOCKET_EINTR)
+#else
+#include <ws2tcpip.h>
+#define O_NONBLOCK 1
+#define MSG_DONTWAIT 0
+#define IS_SOCKET_EINTR(err) 0
+#endif
+
+#ifndef SOCKET_ERROR
+#define SOCKET_ERROR -1
+#endif
+
+#ifndef INVALID_SOCKET
+#define INVALID_SOCKET -1
+#endif
+
+#define DNS_TIMEOUT 30
+
+#ifndef O_NONBLOCK
+#if defined(O_NDELAY)
+#define O_NONBLOCK O_NODELAY
+#elif defined (O_FNDELAY)
+#define O_NONBLOCK O_FNDELAY
+#else
+#error socket blocking is not supported on this platform
+#endif
+#endif
+
+#if SOCKET_EAGAIN != SOCKET_EWOULDBLOCK
+#define HAVE_SOCKET_EWOULDBLOCK 1
+#endif
+
+#ifdef _AIX
+#ifndef MSG_DONTWAIT
+#define MSG_DONTWAIT 0
+#endif
+#endif
+
+/* Function prototypes */
+my_bool pvio_socket_set_timeout(MARIADB_PVIO *pvio, enum enum_pvio_timeout type, int timeout);
+int pvio_socket_get_timeout(MARIADB_PVIO *pvio, enum enum_pvio_timeout type);
+ssize_t pvio_socket_read(MARIADB_PVIO *pvio, uchar *buffer, size_t length);
+ssize_t pvio_socket_async_read(MARIADB_PVIO *pvio, uchar *buffer, size_t length);
+ssize_t pvio_socket_async_write(MARIADB_PVIO *pvio, const uchar *buffer, size_t length);
+ssize_t pvio_socket_write(MARIADB_PVIO *pvio, const uchar *buffer, size_t length);
+int pvio_socket_wait_io_or_timeout(MARIADB_PVIO *pvio, my_bool is_read, int timeout);
+int pvio_socket_blocking(MARIADB_PVIO *pvio, my_bool value, my_bool *old_value);
+my_bool pvio_socket_connect(MARIADB_PVIO *pvio, MA_PVIO_CINFO *cinfo);
+my_bool pvio_socket_close(MARIADB_PVIO *pvio);
+int pvio_socket_fast_send(MARIADB_PVIO *pvio);
+int pvio_socket_keepalive(MARIADB_PVIO *pvio);
+my_bool pvio_socket_get_handle(MARIADB_PVIO *pvio, void *handle);
+my_bool pvio_socket_is_blocking(MARIADB_PVIO *pvio);
+my_bool pvio_socket_is_alive(MARIADB_PVIO *pvio);
+my_bool pvio_socket_has_data(MARIADB_PVIO *pvio, ssize_t *data_len);
+int pvio_socket_shutdown(MARIADB_PVIO *pvio);
+
+static int pvio_socket_init(char *unused1, 
+                           size_t unused2, 
+                           int unused3, 
+                           va_list);
+static int pvio_socket_end(void);
+static ssize_t ma_send(my_socket socket, const uchar *buffer, size_t length, int flags);
+static ssize_t ma_recv(my_socket socket, uchar *buffer, size_t length, int flags);
+
+struct st_ma_pvio_methods pvio_socket_methods= {
+  pvio_socket_set_timeout,
+  pvio_socket_get_timeout,
+  pvio_socket_read,
+  pvio_socket_async_read,
+  pvio_socket_write,
+  pvio_socket_async_write,
+  pvio_socket_wait_io_or_timeout,
+  pvio_socket_blocking,
+  pvio_socket_connect,
+  pvio_socket_close,
+  pvio_socket_fast_send,
+  pvio_socket_keepalive,
+  pvio_socket_get_handle,
+  pvio_socket_is_blocking,
+  pvio_socket_is_alive,
+  pvio_socket_has_data,
+  pvio_socket_shutdown
+};
+
+#ifndef PLUGIN_DYNAMIC
+MARIADB_PVIO_PLUGIN pvio_socket_client_plugin=
+#else
+MARIADB_PVIO_PLUGIN _mysql_client_plugin_declaration_=
+#endif
+{
+  MARIADB_CLIENT_PVIO_PLUGIN,
+  MARIADB_CLIENT_PVIO_PLUGIN_INTERFACE_VERSION,
+  "pvio_socket",
+  "Georg Richter",
+  "MariaDB virtual IO plugin for socket communication",
+  {1, 0, 0},
+  "LGPL",
+  NULL,
+  &pvio_socket_init,
+  &pvio_socket_end,
+  NULL,
+  &pvio_socket_methods
+};
+
+struct st_pvio_socket {
+  my_socket socket;
+  int fcntl_mode;
+  MYSQL *mysql;
+};
+
+static my_bool pvio_socket_initialized= FALSE;
+
+static int pvio_socket_init(char *errmsg __attribute__((unused)),
+                           size_t errmsg_length __attribute__((unused)), 
+                           int unused __attribute__((unused)), 
+                           va_list va __attribute__((unused)))
+{
+  pvio_socket_initialized= TRUE;
+  return 0;
+}
+
+static int pvio_socket_end(void)
+{
+  if (!pvio_socket_initialized)
+    return 1;
+  return 0;
+}
+
+my_bool pvio_socket_change_timeout(MARIADB_PVIO *pvio, enum enum_pvio_timeout type, int timeout)
+{
+  struct timeval tm= {0};
+  int rc= 0;
+  struct st_pvio_socket *csock= NULL;
+  if (!pvio)
+    return 1;
+  if (!(csock= (struct st_pvio_socket *)pvio->data))
+    return 1;
+  tm.tv_sec= timeout / 1000;
+  tm.tv_usec= (timeout % 1000) * 1000;
+  switch(type)
+  {
+    case PVIO_WRITE_TIMEOUT:
+#ifndef _WIN32
+      rc= setsockopt(csock->socket, SOL_SOCKET, SO_SNDTIMEO, (const char *)&tm, sizeof(tm));
+#else
+      rc= setsockopt(csock->socket, SOL_SOCKET, SO_SNDTIMEO, (const char *)&timeout, sizeof(int));
+#endif
+    break;
+    case PVIO_READ_TIMEOUT:
+#ifndef _WIN32
+      rc= setsockopt(csock->socket, SOL_SOCKET, SO_RCVTIMEO, (const char *)&tm, sizeof(tm));
+#else
+      rc= setsockopt(csock->socket, SOL_SOCKET, SO_RCVTIMEO, (const char *)&timeout, sizeof(int));
+#endif
+    break;
+    default:
+    break;
+  }
+  return rc;
+}
+
+/* {{{ pvio_socket_set_timeout */
+/*
+   set timeout value
+
+   SYNOPSIS
+     pvio_socket_set_timeout
+     pvio            PVIO
+     type           timeout type (connect, read, write)
+     timeout        timeout in seconds
+
+   DESCRIPTION
+     Sets timeout values for connection-, read or write time out.
+     PVIO internally stores all timeout values in milliseconds, but 
+     accepts and returns all time values in seconds (like api does).
+
+   RETURNS
+     0              Success
+     1              Error
+*/
+my_bool pvio_socket_set_timeout(MARIADB_PVIO *pvio, enum enum_pvio_timeout type, int timeout)
+{
+  struct st_pvio_socket *csock= NULL;
+  if (!pvio)
+    return 1;
+  csock= (struct st_pvio_socket *)pvio->data;
+  pvio->timeout[type]= (timeout > 0) ? timeout * 1000 : -1;
+  if (csock)
+    return pvio_socket_change_timeout(pvio, type, timeout * 1000);
+  return 0;
+}
+/* }}} */
+
+/* {{{ pvio_socket_get_timeout */
+/*
+   get timeout value
+
+   SYNOPSIS
+     pvio_socket_get_timeout
+     pvio            PVIO
+     type           timeout type (connect, read, write)
+
+   DESCRIPTION
+     Returns timeout values for connection-, read or write time out.
+     PVIO internally stores all timeout values in milliseconds, but 
+     accepts and returns all time values in seconds (like api does).
+
+   RETURNS
+      0...n         time out value
+     -1             error
+*/
+int pvio_socket_get_timeout(MARIADB_PVIO *pvio, enum enum_pvio_timeout type)
+{
+  if (!pvio)
+    return -1;
+  return pvio->timeout[type] / 1000;
+}
+/* }}} */
+
+/* {{{ pvio_socket_read */
+/*
+   read from socket
+
+   SYNOPSIS
+   pvio_socket_read()
+     pvio             PVIO
+     buffer          read buffer
+     length          buffer length
+
+   DESCRIPTION
+     reads up to length bytes into specified buffer. In the event of an
+     error erno is set to indicate it.
+
+   RETURNS
+      1..n           number of bytes read
+      0              peer has performed shutdown
+     -1              on error
+                     
+*/   
+ssize_t pvio_socket_read(MARIADB_PVIO *pvio, uchar *buffer, size_t length)
+{
+  ssize_t r;
+  int read_flags= MSG_DONTWAIT;
+  struct st_pvio_socket *csock;
+  int timeout;
+
+  if (!pvio || !pvio->data)
+    return -1;
+
+  csock= (struct st_pvio_socket *)pvio->data;
+  timeout = pvio->timeout[PVIO_READ_TIMEOUT];
+
+  while ((r = ma_recv(csock->socket, (void *)buffer, length, read_flags)) == -1)
+  {
+    int err = socket_errno;
+    if ((err != SOCKET_EAGAIN
+#ifdef HAVE_SOCKET_EWOULDBLOCK
+      && err != SOCKET_EWOULDBLOCK
+#endif
+      ) || timeout == 0)
+      return r;
+
+    if (pvio_socket_wait_io_or_timeout(pvio, TRUE, timeout) < 1)
+      return -1;
+  }
+  return r;
+}
+/* }}} */
+
+/* {{{ pvio_socket_async_read */
+/*
+   read from socket
+
+   SYNOPSIS
+   pvio_socket_async_read()
+     pvio             PVIO
+     buffer          read buffer
+     length          buffer length
+
+   DESCRIPTION
+     reads up to length bytes into specified buffer. In the event of an
+     error erno is set to indicate it.
+
+   RETURNS
+      1..n           number of bytes read
+      0              peer has performed shutdown
+     -1              on error
+                     
+*/   
+ssize_t pvio_socket_async_read(MARIADB_PVIO *pvio, uchar *buffer, size_t length)
+{
+  ssize_t r= -1;
+#ifndef _WIN32
+  int read_flags= MSG_DONTWAIT;
+#endif
+  struct st_pvio_socket *csock= NULL;
+
+  if (!pvio || !pvio->data)
+    return -1;
+
+  csock= (struct st_pvio_socket *)pvio->data;
+
+#ifndef _WIN32
+  r= recv(csock->socket,(void *)buffer, length, read_flags);
+#else
+  /* Windows doesn't support MSG_DONTWAIT, so we need to set
+     socket to non blocking */
+  pvio_socket_blocking(pvio, 0, 0);
+  r= recv(csock->socket, (char *)buffer, (int)length, 0);
+#endif
+  return r;
+}
+/* }}} */
+
+static ssize_t ma_send(my_socket socket, const uchar *buffer, size_t length, int flags)
+{
+  ssize_t r;
+#if !defined(MSG_NOSIGNAL) && !defined(SO_NOSIGPIPE) && !defined(_WIN32)
+  struct sigaction act, oldact;
+  act.sa_handler= SIG_IGN;
+  sigaction(SIGPIPE, &act, &oldact);
+#endif
+  do {
+    r = send(socket, (const char *)buffer, IF_WIN((int)length,length), flags);
+  }
+  while (r == -1 && IS_SOCKET_EINTR(socket_errno));
+#if !defined(MSG_NOSIGNAL) && !defined(SO_NOSIGPIPE) && !defined(_WIN32)
+  sigaction(SIGPIPE, &oldact, NULL);
+#endif
+  return r;
+}
+
+static ssize_t ma_recv(my_socket socket, uchar *buffer, size_t length, int flags)
+{
+  ssize_t r;
+  do {
+   r = recv(socket, (char*) buffer, IF_WIN((int)length, length), flags);
+  }
+  while (r == -1 && IS_SOCKET_EINTR(socket_errno));
+  return r;
+}
+
+/* {{{ pvio_socket_async_write */
+/*
+   write to socket
+
+   SYNOPSIS
+   pvio_socket_async_write()
+     pvio             PVIO
+     buffer          read buffer
+     length          buffer length
+
+   DESCRIPTION
+     writes up to length bytes to socket. In the event of an
+     error erno is set to indicate it.
+
+   RETURNS
+      1..n           number of bytes read
+      0              peer has performed shutdown
+     -1              on error
+                     
+*/   
+ssize_t pvio_socket_async_write(MARIADB_PVIO *pvio, const uchar *buffer, size_t length)
+{
+  ssize_t r= -1;
+  struct st_pvio_socket *csock= NULL;
+#ifndef _WIN32
+  int write_flags= MSG_DONTWAIT;
+#ifdef MSG_NOSIGNAL
+  write_flags|= MSG_NOSIGNAL;
+#endif
+#endif
+
+  if (!pvio || !pvio->data)
+    return -1;
+
+  csock= (struct st_pvio_socket *)pvio->data;
+
+#ifndef WIN32
+  r= ma_send(csock->socket, buffer, length, write_flags);
+#else
+  /* Windows doesn't support MSG_DONTWAIT, so we need to set
+     socket to non blocking */
+  pvio_socket_blocking(pvio, 0, 0);
+  r= send(csock->socket, (const char *)buffer, (int)length, 0);
+#endif
+
+  return r;
+}
+/* }}} */
+
+/* {{{ pvio_socket_write */
+/*
+   write to socket
+
+   SYNOPSIS
+   pvio_socket_write()
+     pvio             PVIO
+     buffer          read buffer
+     length          buffer length
+
+   DESCRIPTION
+     writes up to length bytes to socket. In the event of an
+     error erno is set to indicate it.
+
+   RETURNS
+      1..n           number of bytes read
+      0              peer has performed shutdown
+     -1              on error
+                     
+*/
+ssize_t pvio_socket_write(MARIADB_PVIO *pvio, const uchar *buffer, size_t length)
+{
+  ssize_t r;
+  struct st_pvio_socket *csock;
+  int timeout;
+  int send_flags= MSG_DONTWAIT;
+#ifdef MSG_NOSIGNAL
+  send_flags|= MSG_NOSIGNAL;
+#endif
+  if (!pvio || !pvio->data)
+    return -1;
+
+  csock= (struct st_pvio_socket *)pvio->data;
+  timeout = pvio->timeout[PVIO_WRITE_TIMEOUT];
+
+  while ((r = ma_send(csock->socket, (void *)buffer, length,send_flags)) == -1)
+  {
+    int err = socket_errno;
+    if ((err != SOCKET_EAGAIN
+#ifdef HAVE_SOCKET_EWOULDBLOCK
+      && err != SOCKET_EWOULDBLOCK
+#endif
+       )|| timeout == 0)
+      return r;
+    if (pvio_socket_wait_io_or_timeout(pvio, FALSE, timeout) < 1)
+      return -1;
+  }
+  return r;
+}
+/* }}} */
+
+int pvio_socket_wait_io_or_timeout(MARIADB_PVIO *pvio, my_bool is_read, int timeout)
+{
+  int rc;
+  struct st_pvio_socket *csock= NULL;
+
+#ifndef _WIN32
+  struct pollfd p_fd;
+#else
+  struct timeval tv= {0,0};
+  fd_set fds, exc_fds;
+#endif
+
+  if (!pvio || !pvio->data)
+    return 0;
+
+  if (pvio->mysql->options.extension && 
+      pvio->mysql->options.extension->io_wait != NULL) {
+    my_socket handle;
+    if (pvio_socket_get_handle(pvio, &handle))
+      return 0;
+    return pvio->mysql->options.extension->io_wait(handle, is_read, timeout);
+  }
+
+  csock= (struct st_pvio_socket *)pvio->data;
+  {
+#ifndef _WIN32
+    memset(&p_fd, 0, sizeof(p_fd));
+    p_fd.fd= csock->socket;
+    p_fd.events= (is_read) ? POLLIN : POLLOUT;
+
+    if (!timeout)
+      timeout= -1;
+
+    do {
+      rc= poll(&p_fd, 1, timeout);
+    } while (rc == -1 && errno == EINTR);
+
+    if (rc == 0)
+      errno= ETIMEDOUT;
+#else
+    FD_ZERO(&fds);
+    FD_ZERO(&exc_fds);
+
+    FD_SET(csock->socket, &fds);
+    FD_SET(csock->socket, &exc_fds);
+
+    if (timeout >= 0)
+    {
+      tv.tv_sec= timeout / 1000;
+      tv.tv_usec= (timeout % 1000) * 1000;
+    }
+
+    rc= select(0, (is_read) ? &fds : NULL,
+                  (is_read) ? NULL : &fds,
+                  &exc_fds, 
+                  (timeout >= 0) ? &tv : NULL);
+
+    if (rc == SOCKET_ERROR)
+    {
+      errno= WSAGetLastError();
+    }
+    else if (rc == 0)
+    {
+      rc= SOCKET_ERROR;
+      WSASetLastError(WSAETIMEDOUT);
+      errno= ETIMEDOUT;
+    }
+    else if (FD_ISSET(csock->socket, &exc_fds))
+    {
+      int err;
+      int len = sizeof(int);
+      if (getsockopt(csock->socket, SOL_SOCKET, SO_ERROR, (char *)&err, &len) != SOCKET_ERROR)
+      {
+        WSASetLastError(err);
+        errno= err;
+      }
+      rc= SOCKET_ERROR;
+    }
+   
+#endif
+  }
+  return rc;
+}
+
+int pvio_socket_blocking(MARIADB_PVIO *pvio, my_bool block, my_bool *previous_mode)
+{
+  my_bool is_blocking;
+  struct st_pvio_socket *csock;
+  int new_fcntl_mode;
+
+  if (!pvio || !pvio->data)
+    return 1;
+
+  csock = (struct st_pvio_socket *)pvio->data;
+
+  is_blocking = !(csock->fcntl_mode & O_NONBLOCK);
+  if (previous_mode)
+    *previous_mode = is_blocking;
+
+  if (is_blocking == block)
+    return 0;
+
+  if (block)
+     new_fcntl_mode = csock->fcntl_mode & ~O_NONBLOCK;
+  else
+     new_fcntl_mode = csock->fcntl_mode | O_NONBLOCK;
+
+#ifdef _WIN32
+  {
+    ulong arg = block ? 0 : 1;
+    if (ioctlsocket(csock->socket, FIONBIO, (void *)&arg))
+    {
+      return(WSAGetLastError());
+    }
+  }
+#else
+  if (fcntl(csock->socket, F_SETFL, new_fcntl_mode) == -1)
+  {
+    return errno;
+  }
+#endif
+  csock->fcntl_mode = new_fcntl_mode;
+  return 0;
+}
+
+static int pvio_socket_internal_connect(MARIADB_PVIO *pvio,
+                                       const struct sockaddr *name, 
+                                       size_t namelen)
+{
+  int rc= 0;
+  struct st_pvio_socket *csock= NULL;
+  int timeout;
+#ifndef _WIN32
+  unsigned int wait_conn= 1;
+  time_t start_t= time(NULL);
+#endif
+
+  if (!pvio || !pvio->data)
+    return 1;
+
+  csock= (struct st_pvio_socket *)pvio->data;
+  timeout= pvio->timeout[PVIO_CONNECT_TIMEOUT];
+
+  /* set non blocking */
+  pvio_socket_blocking(pvio, 0, 0);
+
+#ifndef _WIN32
+  do {
+    int save_errno;
+    rc= connect(csock->socket, (struct sockaddr*) name, (int)namelen);
+
+    if (time(NULL) - start_t > (time_t)timeout/1000)
+      break;
+
+    /* CONC-612: Since usleep may fail and will set errno (On MacOSX usleep
+      always sets errno=ETIMEDOUT), we need to save and restore errno */
+    save_errno= errno;
+    usleep(wait_conn);
+    errno= save_errno;
+
+    wait_conn= wait_conn >= 1000000 ? 1000000 : wait_conn * 2;
+
+  } while (rc == -1 && (errno == EINTR || errno == EAGAIN));
+  /* in case a timeout values was set we need to check error values
+     EINPROGRESS */
+  if (timeout != 0 && rc == -1 && errno == EINPROGRESS)
+  {
+    rc= pvio_socket_wait_io_or_timeout(pvio, FALSE, timeout);
+    if (rc < 1)
+      return -1;
+    {
+      int error;
+      socklen_t error_len= sizeof(error);
+      if ((rc = getsockopt(csock->socket, SOL_SOCKET, SO_ERROR, 
+                           (char *)&error, &error_len)) < 0)
+        return errno;
+      else if (error) 
+        return error;
+    }
+  }
+#ifdef __APPLE__
+  if (csock->socket)
+  {
+    int val= 1;
+    setsockopt(csock->socket, SOL_SOCKET, SO_NOSIGPIPE, (void *)&val, sizeof(int));
+  }
+#endif
+#else
+  rc= connect(csock->socket, (struct sockaddr*) name, (int)namelen);
+  if (rc == SOCKET_ERROR)
+  {
+    if (WSAGetLastError() == WSAEWOULDBLOCK)
+    {
+      if (pvio_socket_wait_io_or_timeout(pvio, FALSE, timeout) < 0)
+        return -1;
+      rc= 0;
+    }
+  }
+#endif
+  return rc;
+}
+
+int pvio_socket_keepalive(MARIADB_PVIO *pvio)
+{
+  int opt= 1;
+  struct st_pvio_socket *csock= NULL;
+
+  if (!pvio || !pvio->data)
+    return 1;
+
+  csock= (struct st_pvio_socket *)pvio->data;
+
+  return setsockopt(csock->socket, SOL_SOCKET, SO_KEEPALIVE,
+#ifndef _WIN32
+               (const void *)&opt, sizeof(opt));
+#else
+               (char *)&opt, (int)sizeof(opt));
+#endif
+}
+
+int pvio_socket_fast_send(MARIADB_PVIO *pvio)
+{
+  int r= 0;
+  struct st_pvio_socket *csock= NULL;
+
+  if (!pvio || !pvio->data)
+    return 1;
+
+  csock= (struct st_pvio_socket *)pvio->data;
+
+/* Setting IP_TOS is not recommended on Windows. See 
+   http://msdn.microsoft.com/en-us/library/windows/desktop/ms738586(v=vs.85).aspx
+*/
+#if !defined(_WIN32) && defined(IPTOS_THROUGHPUT)
+  {
+    int tos = IPTOS_THROUGHPUT;
+    r= setsockopt(csock->socket, IPPROTO_IP, IP_TOS,
+	                         (const void *)&tos, sizeof(tos));
+  }
+#endif /* !_WIN32 && IPTOS_THROUGHPUT */
+  if (!r)
+  {
+    int opt = 1;
+    /* turn off nagle algorithm */
+    r= setsockopt(csock->socket, IPPROTO_TCP, TCP_NODELAY,
+#ifdef _WIN32
+                  (const char *)&opt, (int)sizeof(opt));
+#else
+                  (const void *)&opt, sizeof(opt));
+#endif
+  }
+  return r;
+}
+
+static int
+pvio_socket_connect_async(MARIADB_PVIO *pvio,
+                          const struct sockaddr *name, uint namelen)
+{
+  MYSQL *mysql= pvio->mysql;
+  mysql->options.extension->async_context->pvio= pvio;
+  pvio_socket_blocking(pvio, 0, 0);
+  return my_connect_async(pvio, name, namelen, pvio->timeout[PVIO_CONNECT_TIMEOUT]);
+}
+
+static int
+pvio_socket_connect_sync_or_async(MARIADB_PVIO *pvio,
+                          const struct sockaddr *name, uint namelen)
+{
+  MYSQL *mysql= pvio->mysql;
+  if (mysql->options.extension && mysql->options.extension->async_context &&
+      mysql->options.extension->async_context->active)
+  {
+    /* even if we are not connected yet, application needs to check socket
+     * via mysql_get_socket api call, so we need to assign pvio */
+    return pvio_socket_connect_async(pvio, name, namelen);
+  }
+
+  return pvio_socket_internal_connect(pvio, name, namelen);
+}
+
+my_bool pvio_socket_connect(MARIADB_PVIO *pvio, MA_PVIO_CINFO *cinfo)
+{
+  struct st_pvio_socket *csock= NULL;
+  MYSQL *mysql;
+
+  if (!pvio || !cinfo)
+    return 1;
+
+  if (!(csock= (struct st_pvio_socket *)calloc(1, sizeof(struct st_pvio_socket))))
+  {
+    PVIO_SET_ERROR(cinfo->mysql, CR_OUT_OF_MEMORY, unknown_sqlstate, 0, "");
+    return 1;
+  }
+  pvio->data= (void *)csock;
+  csock->socket= INVALID_SOCKET;
+  mysql= pvio->mysql= cinfo->mysql;
+  pvio->type= cinfo->type;
+
+  if (cinfo->type == PVIO_TYPE_UNIXSOCKET)
+  {
+#ifndef _WIN32
+#ifdef HAVE_SYS_UN_H
+    size_t port_length;
+    struct sockaddr_un UNIXaddr;
+    if ((csock->socket = socket(AF_UNIX,SOCK_STREAM,0)) == INVALID_SOCKET ||
+        (port_length=strlen(cinfo->unix_socket)) >= (sizeof(UNIXaddr.sun_path)))
+    {
+      PVIO_SET_ERROR(cinfo->mysql, CR_SOCKET_CREATE_ERROR, unknown_sqlstate, 0, errno);
+      goto error;
+    }
+    memset((char*) &UNIXaddr, 0, sizeof(UNIXaddr));
+    UNIXaddr.sun_family = AF_UNIX;
+#if defined(__linux__)
+    /* Abstract socket */
+    if (cinfo->unix_socket[0] == '@')
+    {
+      strncpy(UNIXaddr.sun_path + 1, cinfo->unix_socket + 1, 106);
+      port_length+= offsetof(struct sockaddr_un, sun_path);
+    }
+    else
+#endif
+    {
+      size_t sun_path_size = sizeof(UNIXaddr.sun_path);
+      strncpy(UNIXaddr.sun_path, cinfo->unix_socket, sun_path_size - 1);
+      if (sun_path_size == strlen(UNIXaddr.sun_path) + 1 && UNIXaddr.sun_path[sun_path_size - 1] != '\0')
+      {
+        /* Making the string null-terminated */
+        UNIXaddr.sun_path[sun_path_size - 1] = '\0';
+      }
+      port_length= sizeof(UNIXaddr);
+    }
+    if (pvio_socket_connect_sync_or_async(pvio, (struct sockaddr *) &UNIXaddr, port_length))
+    {
+      PVIO_SET_ERROR(cinfo->mysql, CR_CONNECTION_ERROR, SQLSTATE_UNKNOWN, 
+                    ER(CR_CONNECTION_ERROR), cinfo->unix_socket, socket_errno);
+      goto error;
+    }
+    if (pvio_socket_blocking(pvio, 1, 0) == SOCKET_ERROR)
+    {
+      goto error;
+    }
+#else
+/* todo: error, not supported */
+#endif
+#endif
+  } else if (cinfo->type == PVIO_TYPE_SOCKET)
+  {
+    struct addrinfo hints, *save_res= 0, *bind_res= 0, *res= 0, *bres= 0;
+    char server_port[NI_MAXSERV];
+    int gai_rc;
+    int rc= 0;
+    time_t start_t= time(NULL);
+#ifdef _WIN32
+    DWORD wait_gai;
+#else
+    unsigned int wait_gai;
+#endif
+
+    memset(&server_port, 0, NI_MAXSERV);
+    snprintf(server_port, NI_MAXSERV, "%d", cinfo->port);
+
+    /* set hints for getaddrinfo */
+    memset(&hints, 0, sizeof(hints));
+    hints.ai_protocol= IPPROTO_TCP; /* TCP connections only */
+    hints.ai_family= AF_UNSPEC;     /* includes: IPv4, IPv6 or hostname */
+    hints.ai_socktype= SOCK_STREAM;
+
+    /* if client has multiple interfaces, we will bind socket to given
+     * bind_address */
+    if (cinfo->mysql->options.bind_address)
+    {
+      wait_gai= 1;
+      while ((gai_rc= getaddrinfo(cinfo->mysql->options.bind_address, 0,
+                          &hints, &bind_res)) == EAI_AGAIN)
+      {
+        unsigned int timeout= mysql->options.connect_timeout ?
+                              mysql->options.connect_timeout : DNS_TIMEOUT;
+        if (time(NULL) - start_t > (time_t)timeout)
+          break;
+#ifndef _WIN32
+        usleep(wait_gai);
+#else
+        Sleep(wait_gai);
+#endif
+        wait_gai*= 2;
+      }
+      if (gai_rc != 0 || !bind_res)
+      {
+        PVIO_SET_ERROR(cinfo->mysql, CR_BIND_ADDR_FAILED, SQLSTATE_UNKNOWN, 
+                     CER(CR_BIND_ADDR_FAILED), cinfo->mysql->options.bind_address, gai_rc);
+        goto error;
+      }
+    }
+    /* Get the address information for the server using getaddrinfo() */
+    wait_gai= 1;
+    while ((gai_rc= getaddrinfo(cinfo->host, server_port,
+                                &hints, &res)) == EAI_AGAIN)
+    {
+      unsigned int timeout= mysql->options.connect_timeout ?
+                            mysql->options.connect_timeout : DNS_TIMEOUT;
+      if (time(NULL) - start_t > (time_t)timeout)
+        break;
+#ifndef _WIN32
+      usleep(wait_gai);
+#else
+      Sleep(wait_gai);
+#endif
+      wait_gai*= 2;
+    }
+    if (gai_rc != 0 || !res)
+    {
+      PVIO_SET_ERROR(cinfo->mysql, CR_UNKNOWN_HOST, SQLSTATE_UNKNOWN, 
+                   ER(CR_UNKNOWN_HOST), cinfo->host, gai_rc);
+      if (bind_res)
+        freeaddrinfo(bind_res);
+      goto error;
+    }
+
+    /* res is a linked list of addresses for the given hostname. We loop until
+       we are able to connect to one address or all connect attempts failed */
+    for (save_res= res; save_res; save_res= save_res->ai_next)
+    {
+      /* CONC-364: Avoid leak of open sockets */
+      if (csock->socket != INVALID_SOCKET)
+        closesocket(csock->socket);
+      csock->socket= socket(save_res->ai_family, save_res->ai_socktype, 
+                            save_res->ai_protocol);
+      if (csock->socket == INVALID_SOCKET)
+        /* Errors will be handled after loop finished */
+        continue;
+
+      if (bind_res)
+      {
+        for (bres= bind_res; bres; bres= bres->ai_next)
+        {
+          if (!(rc= bind(csock->socket, bres->ai_addr, (int)bres->ai_addrlen)))
+            break;
+        }
+        if (rc)
+        {
+          closesocket(csock->socket);
+          csock->socket= INVALID_SOCKET;
+          continue;
+        }
+      }
+
+      if (mysql->options.extension && mysql->options.extension->async_context &&
+          mysql->options.extension->async_context->active)
+      {
+        mysql->options.extension->async_context->pending_gai_res = res;
+        rc= pvio_socket_connect_async(pvio, save_res->ai_addr, (uint)save_res->ai_addrlen);
+        mysql->options.extension->async_context->pending_gai_res = NULL;
+      }
+      else
+      {
+        rc= pvio_socket_connect_sync_or_async(pvio, save_res->ai_addr, (uint)save_res->ai_addrlen);
+      }
+
+      if (!rc)
+      {
+        MYSQL *mysql= pvio->mysql;
+        if (mysql->options.extension && mysql->options.extension->async_context &&
+             mysql->options.extension->async_context->active)
+          break;
+        if (pvio_socket_blocking(pvio, 0, 0) == SOCKET_ERROR)
+        {
+          closesocket(csock->socket);
+          csock->socket= INVALID_SOCKET;
+          continue;
+        }
+        break; /* success! */
+      }
+    }
+ 
+    freeaddrinfo(res);
+    if (bind_res)
+      freeaddrinfo(bind_res);
+
+    if (csock->socket == INVALID_SOCKET)
+    {
+      PVIO_SET_ERROR(cinfo->mysql, CR_IPSOCK_ERROR, SQLSTATE_UNKNOWN, ER(CR_IPSOCK_ERROR),
+                         socket_errno);
+      goto error;
+    }
+
+    /* last call to connect 2 failed */
+    if (rc)
+    {
+      PVIO_SET_ERROR(cinfo->mysql, CR_CONNECTION_ERROR, SQLSTATE_UNKNOWN,
+                     ER(CR_CONN_HOST_ERROR), cinfo->host,
+#ifdef _WIN32
+                     errno);
+#else
+                     socket_errno);
+#endif
+      goto error;
+    }
+    if (pvio_socket_blocking(pvio, 1, 0) == SOCKET_ERROR)
+      goto error;
+  }
+  /* apply timeouts */
+  if (pvio->timeout[PVIO_CONNECT_TIMEOUT] > 0)
+  {
+    if (pvio_socket_change_timeout(pvio, PVIO_READ_TIMEOUT, pvio->timeout[PVIO_CONNECT_TIMEOUT]) ||
+        pvio_socket_change_timeout(pvio, PVIO_WRITE_TIMEOUT, pvio->timeout[PVIO_CONNECT_TIMEOUT]))
+      goto error;
+  }
+  else
+  {
+    if (pvio->timeout[PVIO_WRITE_TIMEOUT] > 0)
+      if (pvio_socket_change_timeout(pvio, PVIO_WRITE_TIMEOUT, pvio->timeout[PVIO_WRITE_TIMEOUT]))
+        goto error;
+    if (pvio->timeout[PVIO_READ_TIMEOUT] > 0)
+      if (pvio_socket_change_timeout(pvio, PVIO_READ_TIMEOUT, pvio->timeout[PVIO_READ_TIMEOUT]))
+        goto error;
+  }
+  return 0;
+error:
+  /* close socket: MDEV-10891 */
+  if (csock->socket != INVALID_SOCKET)
+  {
+    closesocket(csock->socket);
+    csock->socket= INVALID_SOCKET;
+  }
+  if (pvio->data)
+  {
+    free((gptr)pvio->data);
+    pvio->data= NULL;
+  }
+  return 1;
+}
+
+/* {{{ my_bool pvio_socket_close() */
+my_bool pvio_socket_close(MARIADB_PVIO *pvio)
+{
+  struct st_pvio_socket *csock= NULL;
+  int r= 0;
+
+  if (!pvio)
+    return 1;
+
+  if (pvio->data)
+  {
+    csock= (struct st_pvio_socket *)pvio->data;
+    if (csock && csock->socket != INVALID_SOCKET)
+    {
+      r= closesocket(csock->socket);
+      csock->socket= INVALID_SOCKET;
+    }
+    free((gptr)pvio->data);
+    pvio->data= NULL;
+  }
+  return r;
+}
+/* }}} */
+
+/* {{{ my_socket pvio_socket_get_handle */
+my_bool pvio_socket_get_handle(MARIADB_PVIO *pvio, void *handle)
+{
+  if (pvio && pvio->data && handle)
+  {
+    *(my_socket *)handle= ((struct st_pvio_socket *)pvio->data)->socket;
+    return 0;
+  }
+  return 1;
+}
+/* }}} */
+
+/* {{{ my_bool pvio_socket_is_blocking(MARIADB_PVIO *pvio) */
+my_bool pvio_socket_is_blocking(MARIADB_PVIO *pvio)
+{
+  struct st_pvio_socket *csock= NULL;
+  my_bool r;
+
+  if (!pvio || !pvio->data)
+    return 0;
+
+  csock= (struct st_pvio_socket *)pvio->data;
+  r = !(csock->fcntl_mode & O_NONBLOCK);
+  return r;
+}
+/* }}} */
+
+/* {{{ my_bool pvio_socket_is_alive(MARIADB_PVIO *pvio) */
+my_bool pvio_socket_is_alive(MARIADB_PVIO *pvio)
+{
+  struct st_pvio_socket *csock= NULL;
+ #ifndef _WIN32
+  struct pollfd poll_fd;
+#else
+  FD_SET sfds;
+  struct timeval tv= {0,0};
+#endif
+  int res;
+
+  if (!pvio || !pvio->data)
+    return 0;
+
+  csock= (struct st_pvio_socket *)pvio->data;
+#ifndef _WIN32
+  memset(&poll_fd, 0, sizeof(struct pollfd));
+  poll_fd.events= POLLPRI | POLLIN;
+  poll_fd.fd= csock->socket;
+
+  res= poll(&poll_fd, 1, 0);
+  if (res <= 0) /* timeout or error */
+    return FALSE;
+  if (!(poll_fd.revents & (POLLIN | POLLPRI)))
+    return FALSE;
+  return TRUE;
+#else
+  /* We can't use the WSAPoll function, it's broken :-(
+     (see Windows 8 Bugs 309411 - WSAPoll does not report failed connections)
+     Instead we need to use select function:
+     If TIMEVAL is initialized to {0, 0}, select will return immediately; 
+     this is used to poll the state of the selected sockets.
+  */
+  FD_ZERO(&sfds);
+  FD_SET(csock->socket, &sfds);
+
+  res= select((int)csock->socket + 1, &sfds, NULL, NULL, &tv);
+  if (res > 0 && FD_ISSET(csock->socket, &sfds))
+    return TRUE;
+  return FALSE;
+#endif
+}
+/* }}} */
+
+/* {{{ my_boool pvio_socket_has_data */
+my_bool pvio_socket_has_data(MARIADB_PVIO *pvio, ssize_t *data_len)
+{
+  struct st_pvio_socket *csock= NULL;
+  char tmp_buf;
+  ssize_t len;
+  my_bool mode;
+ 
+  if (!pvio || !pvio->data)
+    return 0;
+
+  csock= (struct st_pvio_socket *)pvio->data;
+  /* MSG_PEEK: Peeks at the incoming data. The data is copied into the buffer,
+      but is not removed from the input queue. 
+  */
+  pvio_socket_blocking(pvio, 0, &mode);
+  len= recv(csock->socket, &tmp_buf, sizeof(tmp_buf), MSG_PEEK);
+  pvio_socket_blocking(pvio, mode, 0);
+  if (len < 0)
+    return 1;
+  *data_len= len;
+  return 0;
+}
+/* }}} */
+
+int pvio_socket_shutdown(MARIADB_PVIO *pvio)
+{
+  if (pvio && pvio->data)
+  {
+    my_socket s = ((struct st_pvio_socket *)pvio->data)->socket;
+#ifdef _WIN32
+    shutdown(s, SD_BOTH);
+    CancelIoEx((HANDLE)s, NULL);
+#else
+    shutdown(s, SHUT_RDWR);
+#endif
+  }
+  return -1;
+}
+
diff --git a/libmariadb/plugins/trace/trace_example.c b/libmariadb/plugins/trace/trace_example.c
new file mode 100644
index 00000000..1060542c
--- /dev/null
+++ b/libmariadb/plugins/trace/trace_example.c
@@ -0,0 +1,458 @@
+/************************************************************************************
+   Copyright (C) 2015 MariaDB Corporation AB
+   
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public
+   License as published by the Free Software Foundation; either
+   version 2 of the License, or (at your option) any later version.
+   
+   This library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+   
+   You should have received a copy of the GNU Library General Public
+   License along with this library; if not see <http://www.gnu.org/licenses>
+   or write to the Free Software Foundation, Inc., 
+   51 Franklin St., Fifth Floor, Boston, MA 02110, USA
+*************************************************************************************/
+#ifndef _WIN32
+#define _GNU_SOURCE 1
+#endif
+
+#include <ma_global.h>
+#include <mysql.h>
+#include <mysql/client_plugin.h>
+#include <string.h>
+#include <memory.h>
+
+#ifndef WIN32
+#include <dlfcn.h>
+#endif
+
+#define READ  0
+#define WRITE 1
+
+/* function prototypes */
+static int trace_init(char *errormsg, 
+                      size_t errormsg_size,
+                      int unused      __attribute__((unused)), 
+                      va_list unused1 __attribute__((unused)));
+static int trace_deinit(void);
+
+int (*register_callback)(my_bool register_callback, 
+                         void (*callback_function)(int mode, MYSQL *mysql, const uchar *buffer, size_t length));
+void trace_callback(int mode, MYSQL *mysql, const uchar *buffer, size_t length);
+
+#ifndef HAVE_TRACE_EXAMPLE_PLUGIN_DYNAMIC
+struct st_mysql_client_plugin trace_example_plugin=
+#else
+struct st_mysql_client_plugin _mysql_client_plugin_declaration_ =
+#endif
+{
+  MARIADB_CLIENT_TRACE_PLUGIN,
+  MARIADB_CLIENT_TRACE_PLUGIN_INTERFACE_VERSION,
+  "trace_example",
+  "Georg Richter",
+  "Trace example plugin",
+  {1,0,0},
+  "LGPL",
+  NULL,
+  &trace_init,
+  &trace_deinit,
+  NULL
+};
+
+static const char *commands[]= {
+  "COM_SLEEP",
+  "COM_QUIT",
+  "COM_INIT_DB",
+  "COM_QUERY",
+  "COM_FIELD_LIST",
+  "COM_CREATE_DB",
+  "COM_DROP_DB",
+  "COM_REFRESH",
+  "COM_SHUTDOWN",
+  "COM_STATISTICS",
+  "COM_PROCESS_INFO",
+  "COM_CONNECT",
+  "COM_PROCESS_KILL",
+  "COM_DEBUG",
+  "COM_PING",
+  "COM_TIME",
+  "COM_DELAYED_INSERT",
+  "COM_CHANGE_USER",
+  "COM_BINLOG_DUMP",
+  "COM_TABLE_DUMP",
+  "COM_CONNECT_OUT",
+  "COM_REGISTER_SLAVE",
+  "COM_STMT_PREPARE",
+  "COM_STMT_EXECUTE",
+  "COM_STMT_SEND_LONG_DATA",
+  "COM_STMT_CLOSE",
+  "COM_STMT_RESET",
+  "COM_SET_OPTION",
+  "COM_STMT_FETCH",
+  "COM_DAEMON",
+  "COM_END"
+};
+
+typedef struct {
+  unsigned long thread_id;
+  int last_command; /* COM_* values, -1 for handshake */
+  unsigned int max_packet_size;
+  unsigned int num_commands;
+  size_t total_size[2];
+  unsigned int client_flags;
+  char *username;
+  char *db;
+  char *command;
+  char *filename;
+  unsigned long refid; /* stmt_id, thread_id for kill */
+  uchar charset;
+  void *next;
+  int local_infile;
+  unsigned long pkt_length;
+} TRACE_INFO;
+
+#define TRACE_STATUS(a) ((!a) ? "ok" : "error")
+
+TRACE_INFO *trace_info= NULL;
+
+static TRACE_INFO *get_trace_info(unsigned long thread_id)
+{
+  TRACE_INFO *info= trace_info;
+
+  /* search connection */
+  while (info)
+  {
+    if (info->thread_id == thread_id)
+      return info;
+    else
+      info= (TRACE_INFO *)info->next;
+  }
+
+  if (!(info= (TRACE_INFO *)calloc(sizeof(TRACE_INFO), 1)))
+    return NULL;
+  info->thread_id= thread_id;
+  info->next= trace_info;
+  trace_info= info;
+  return info;
+}
+
+static void delete_trace_info(unsigned long thread_id)
+{
+  TRACE_INFO *last= NULL, *current;
+  current= trace_info;
+
+  while (current)
+  {
+    if (current->thread_id == thread_id)
+    {
+      printf("deleting thread %lu\n", thread_id);
+
+      if (last)
+        last->next= current->next;
+      else
+        trace_info= (TRACE_INFO *)current->next;
+      if (current->command)
+        free(current->command);
+      if (current->db)
+        free(current->db);
+      if (current->username)
+        free(current->username);
+      if (current->filename)
+        free(current->filename);
+      free(current);
+    }
+    last= current;
+    current= (TRACE_INFO *)current->next;
+  }
+
+}
+
+
+/* {{{ static int trace_init */
+/* 
+  Initialization routine
+
+  SYNOPSIS
+    trace_init
+      unused1
+      unused2
+      unused3
+      unused4
+
+  DESCRIPTION
+    Init function registers a callback handler for PVIO interface.
+
+  RETURN
+    0           success
+*/
+static int trace_init(char *errormsg, 
+                      size_t errormsg_size,
+                      int unused1 __attribute__((unused)), 
+                      va_list unused2 __attribute__((unused)))
+{
+  void *func;
+
+#ifdef WIN32
+  if (!(func= GetProcAddress(GetModuleHandle(NULL), "ma_pvio_register_callback")))
+#else
+  if (!(func= dlsym(RTLD_DEFAULT, "ma_pvio_register_callback")))
+#endif
+  {
+    strncpy(errormsg, "Can't find ma_pvio_register_callback function", errormsg_size);
+    return 1;
+  }
+  register_callback= func;
+  register_callback(TRUE, trace_callback);
+
+  return 0;
+}
+/* }}} */
+
+static int trace_deinit(void)
+{
+  /* unregister plugin */
+  while(trace_info)
+  {
+    printf("Warning: Connection for thread %lu not properly closed\n", trace_info->thread_id);
+    trace_info= (TRACE_INFO *)trace_info->next;
+  }
+  register_callback(FALSE, trace_callback);
+  return 0;
+}
+
+static void trace_set_command(TRACE_INFO *info, char *buffer, size_t size)
+{
+  if (info->command)
+    free(info->command);
+
+  info->command= calloc(1, size + 1);
+  memcpy(info->command, buffer, size);
+}
+
+void dump_buffer(uchar *buffer, size_t len)
+{
+  uchar *p= buffer;
+  while (p < buffer + len)
+  {
+    printf("%02x ", *p);
+    p++;
+  }
+  printf("\n");
+}
+
+static void dump_simple(TRACE_INFO *info, my_bool is_error)
+{
+  printf("%8lu: %s %s\n", info->thread_id, commands[info->last_command], TRACE_STATUS(is_error));
+}
+
+static void dump_reference(TRACE_INFO *info, my_bool is_error)
+{
+  printf("%8lu: %s(%lu) %s\n", info->thread_id, commands[info->last_command], (long)info->refid, TRACE_STATUS(is_error));
+}
+
+static void dump_command(TRACE_INFO *info, my_bool is_error)
+{
+  size_t i;
+  printf("%8lu: %s(",  info->thread_id, commands[info->last_command]);
+  for (i= 0; info->command && i < strlen(info->command); i++)
+    if (info->command[i] == '\n')
+      printf("\\n");
+    else if (info->command[i] == '\r')
+      printf("\\r");
+    else if (info->command[i] == '\t')
+      printf("\\t");
+    else
+      printf("%c", info->command[i]);
+  printf(") %s\n", TRACE_STATUS(is_error));
+}
+
+void trace_callback(int mode, MYSQL *mysql, const uchar *buffer, size_t length)
+{
+  unsigned long thread_id= mysql->thread_id;
+  TRACE_INFO *info;
+
+  /* check if package is server greeting package,
+   * and set thread_id */
+  if (!thread_id && mode == READ)
+  {
+    char *p= (char *)buffer;
+    p+= 4; /* packet length */
+    if ((uchar)*p != 0xFF) /* protocol version 0xFF indicates error */
+    {
+      p+= strlen(p + 1) + 2;
+      thread_id= uint4korr(p);
+    }
+    info= get_trace_info(thread_id);
+    info->last_command= -1;
+  }
+  else
+  {
+    char *p= (char *)buffer;
+    info= get_trace_info(thread_id);
+
+    if (info->last_command == -1)
+    {
+      if (mode == WRITE)
+      {
+        /* client authentication reply packet:
+         * 
+         *  ofs description        length
+         *  ------------------------
+         *  0   length             3
+         *  3   packet_no          1
+         *  4   client capab.      4
+         *  8   max_packet_size    4
+         *  12  character set      1
+         *  13  reserved          23
+         *  ------------------------
+         *  36  username (zero terminated)
+         *      len (1 byte) + password or
+         */
+
+        p+= 4;
+        info->client_flags= uint4korr(p);
+        p+= 4;
+        info->max_packet_size= uint4korr(p);
+        p+= 4;
+        info->charset= *p;
+        p+= 24;
+        info->username= strdup(p);
+        p+= strlen(p) + 1;
+        if (*p) /* we are not interested in authentication data */
+          p+= *p;
+        p++;
+        if (info->client_flags & CLIENT_CONNECT_WITH_DB)
+          info->db= strdup(p);
+      }
+      else
+      {
+        p++;
+        if ((uchar)*p == 0xFF)
+          printf("%8lu: CONNECT_ERROR(%d)\n", info->thread_id, uint4korr(p+1));
+        else
+          printf("%8lu: CONNECT_SUCCESS(host=%s,user=%s,db=%s)\n", info->thread_id, 
+                 mysql->host, info->username, info->db ? info->db : "'none'");
+        info->last_command= COM_SLEEP;
+      }
+    }
+    else {
+      char *p= (char *)buffer;
+      int len;
+
+      if (mode == WRITE)
+      {
+        if (info->pkt_length > 0)
+        {
+          info->pkt_length-= length;
+          return;
+        }
+        len= uint3korr(p);
+        info->pkt_length= len + 4 - length;
+        p+= 4;
+        info->last_command= *p;
+        p++;
+
+        switch (info->last_command) {
+        case COM_INIT_DB:
+        case COM_DROP_DB:
+        case COM_CREATE_DB:
+        case COM_DEBUG:
+        case COM_QUERY:
+        case COM_STMT_PREPARE:
+          trace_set_command(info, p, len - 1);
+          break;
+        case COM_PROCESS_KILL:
+          info->refid= uint4korr(p);
+          break;
+        case COM_QUIT:
+          printf("%8lu: COM_QUIT\n", info->thread_id);
+          delete_trace_info(info->thread_id);
+          break;
+        case COM_PING:
+          printf("%8lu: COM_PING\n", info->thread_id);
+          break;
+        case COM_STMT_EXECUTE:
+        case COM_STMT_RESET:
+        case COM_STMT_CLOSE:
+          info->refid= uint4korr(p);
+          break;
+        case COM_CHANGE_USER:
+          break;
+        default:
+          if (info->local_infile == 1)
+          {
+            printf("%8lu: SEND_LOCAL_INFILE(%s) ", info->thread_id, info->filename);
+            if (len)
+              printf("sent %d bytes\n", len);
+            else
+              printf("- error\n");
+            info->local_infile= 2;
+          }
+          else
+            printf("%8lu: UNKNOWN_COMMAND: %d\n", info->thread_id, info->last_command);
+          break;
+        }
+      }
+      else
+      {
+        my_bool is_error;
+
+        len= uint3korr(p);
+        p+= 4;
+
+        is_error= (len == -1);
+
+        switch(info->last_command) {
+        case COM_STMT_EXECUTE:
+        case COM_STMT_RESET:
+        case COM_STMT_CLOSE:
+        case COM_PROCESS_KILL:
+          dump_reference(info, is_error);
+          info->refid= 0;
+          info->last_command= 0;
+          break;
+        case COM_QUIT:
+          dump_simple(info, is_error);
+          break;
+        case COM_QUERY:
+        case COM_INIT_DB:
+        case COM_DROP_DB:
+        case COM_CREATE_DB:
+        case COM_DEBUG:
+        case COM_CHANGE_USER:
+          if (info->last_command == COM_QUERY && (uchar)*p == 251)
+          {
+            info->local_infile= 1;
+            p++;
+            info->filename= (char *)malloc(len);
+            strncpy(info->filename, (char *)p, len);
+            dump_command(info, is_error);
+            break;
+          }
+          dump_command(info, is_error);
+          if (info->local_infile != 1)
+          {
+            free(info->command);
+            info->command= NULL;
+          }
+          break;
+        case COM_STMT_PREPARE:
+          printf("%8lu: COM_STMT_PREPARE(%s) ", info->thread_id, info->command);
+          if (!*p)
+          {
+            unsigned long stmt_id= uint4korr(p+1);
+            printf("-> stmt_id(%lu)\n", stmt_id);
+          }
+          else
+            printf("error\n");
+          break;
+        }
+      }
+    }
+  }
+  info->total_size[mode]+= length;
+}