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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 07:33:12 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 07:33:12 +0000 |
commit | 36082a2fe36ecd800d784ae44c14f1f18c66a7e9 (patch) | |
tree | 6c68e0c0097987aff85a01dabddd34b862309a7c /tests/mini-dtls-record.c | |
parent | Initial commit. (diff) | |
download | gnutls28-36082a2fe36ecd800d784ae44c14f1f18c66a7e9.tar.xz gnutls28-36082a2fe36ecd800d784ae44c14f1f18c66a7e9.zip |
Adding upstream version 3.7.9.upstream/3.7.9upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tests/mini-dtls-record.c')
-rw-r--r-- | tests/mini-dtls-record.c | 406 |
1 files changed, 406 insertions, 0 deletions
diff --git a/tests/mini-dtls-record.c b/tests/mini-dtls-record.c new file mode 100644 index 0000000..83d4900 --- /dev/null +++ b/tests/mini-dtls-record.c @@ -0,0 +1,406 @@ +/* + * Copyright (C) 2012-2013 Free Software Foundation, Inc. + * Copyright (C) 2013 Nikos Mavrogiannopoulos + * + * Author: Nikos Mavrogiannopoulos + * + * This file is part of GnuTLS. + * + * GnuTLS is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3 of the License, or + * (at your option) any later version. + * + * GnuTLS 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 + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GnuTLS; if not, write to the Free Software Foundation, + * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <stdio.h> +#include <stdlib.h> + +#if defined(_WIN32) + +int main() +{ + exit(77); +} + +#else + +#include <string.h> +#include <errno.h> +#include <sys/types.h> +#include <netinet/in.h> +#include <sys/socket.h> +#include <sys/wait.h> +#include <arpa/inet.h> +#include <unistd.h> +#include <signal.h> +#include <gnutls/gnutls.h> +#include <gnutls/dtls.h> + +#include "utils.h" + +static int test_finished = 0; +static void terminate(void); + +/* This program tests whether messages in DTLS are received + * with the expected sequence. That is whether the message + * sequence numbers returned correspond to the received messages. + */ + +/* +static void +tls_audit_log_func (gnutls_session_t session, const char *str) +{ + fprintf (stderr, "|<%p>| %s", session, str); +} +*/ + +static void server_log_func(int level, const char *str) +{ + fprintf(stderr, "server|<%d>| %s", level, str); +} + +static void client_log_func(int level, const char *str) +{ + fprintf(stderr, "client|<%d>| %s", level, str); +} + +/* These are global */ +static pid_t child; + +/* A test client/server app for DTLS duplicate packet detection. + */ + +#define MAX_BUF 1024 + +#define MAX_SEQ 128 + +static int msg_seq[] = + { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 10, 16, 5, 32, 11, 11, 11, 11, 12, + 10, 13, 14, 15, 16, 17, 19, 20, 18, 22, 24, 23, 25, 26, 27, 29, 28, + 29, 29, 30, 31, 32, 33, 34, 35, 37, 36, 38, 39, 42, 37, 40, 41, 41, + -1 +}; + +static unsigned int current = 0; +static unsigned int pos = 0; + +unsigned char *stored_messages[MAX_SEQ]; +unsigned int stored_sizes[MAX_SEQ]; + +static ssize_t odd_push(gnutls_transport_ptr_t tr, const void *data, size_t len) +{ + ssize_t ret; + unsigned i; + + if (msg_seq[current] == -1 || test_finished != 0) { + test_finished = 1; + return len; + } + + stored_messages[current] = malloc(len); + assert(stored_messages[current]); + memcpy(stored_messages[current], data, len); + stored_sizes[current] = len; + + if (pos != current) { + for (i = pos; i <= current; i++) { + if (stored_messages[msg_seq[i]] != NULL) { + do { + ret = + send((long int)tr, + stored_messages[msg_seq + [i]], + stored_sizes[msg_seq[i]], 0); + } + while (ret == -1 && (errno == EAGAIN || errno == EINTR)); + pos++; + } else + break; + } + } else if (msg_seq[current] == (int)current) { + do { + ret = send((long int)tr, data, len, 0); + } + while (ret == -1 && (errno == EAGAIN || errno == EINTR)); + + current++; + pos++; + + return ret; + } else if (stored_messages[msg_seq[current]] != NULL) { + do { + ret = + send((long int)tr, + stored_messages[msg_seq[current]], + stored_sizes[msg_seq[current]], 0); + } + while (ret == -1 && (errno == EAGAIN || errno == EINTR)); + current++; + pos++; + return ret; + } + + current++; + + return len; +} + +static ssize_t n_push(gnutls_transport_ptr_t tr, const void *data, size_t len) +{ + return send((unsigned long)tr, data, len, 0); +} + +/* The first five messages are handshake. Thus corresponds to msg_seq+5 */ +static int recv_msg_seq[] = + { 1, 2, 3, 4, 5, 6, 12, 28, 7, 8, 9, 10, 11, 13, 15, 16, 14, 18, 20, + 19, 21, 22, 23, 25, 24, 26, 27, 29, 30, 31, 33, 32, 34, 35, 38, 36, 37, + -1 +}; + +static void client(int fd) +{ + gnutls_session_t session; + int ret; + char buffer[MAX_BUF + 1]; + gnutls_anon_client_credentials_t anoncred; + unsigned char seq[8]; + uint32_t useq; + + memset(buffer, 0, sizeof(buffer)); + + /* Need to enable anonymous KX specifically. */ + +/* gnutls_global_set_audit_log_function (tls_audit_log_func); */ + global_init(); + + if (debug) { + gnutls_global_set_log_function(client_log_func); + gnutls_global_set_log_level(2); + } + + gnutls_anon_allocate_client_credentials(&anoncred); + + /* Initialize TLS session + */ + gnutls_init(&session, GNUTLS_CLIENT | GNUTLS_DATAGRAM); + gnutls_dtls_set_timeouts(session, get_dtls_retransmit_timeout(), get_timeout()); + gnutls_heartbeat_enable(session, GNUTLS_HB_PEER_ALLOWED_TO_SEND); + gnutls_dtls_set_mtu(session, 1500); + + /* Use default priorities */ + gnutls_priority_set_direct(session, + "NONE:+VERS-DTLS1.0:+CIPHER-ALL:+MAC-ALL:+SIGN-ALL:+COMP-ALL:+ANON-ECDH:+CURVE-ALL", + NULL); + + /* put the anonymous credentials to the current session + */ + gnutls_credentials_set(session, GNUTLS_CRD_ANON, anoncred); + + gnutls_transport_set_int(session, fd); + + /* Perform the TLS handshake + */ + do { + ret = gnutls_handshake(session); + } + while (ret < 0 && gnutls_error_is_fatal(ret) == 0); + + if (ret < 0) { + fail("client: Handshake failed\n"); + gnutls_perror(ret); + exit(1); + } else { + if (debug) + success("client: Handshake was completed\n"); + } + + gnutls_record_send(session, buffer, 1); + + if (debug) + success("client: DTLS version is: %s\n", + gnutls_protocol_get_name + (gnutls_protocol_get_version(session))); + do { + ret = + gnutls_record_recv_seq(session, buffer, sizeof(buffer), + seq); + + if (ret > 0) { + useq = + seq[7] | (seq[6] << 8) | (seq[5] << 16) | + (seq[4] << 24); + + if (debug) + success("received %u\n", (unsigned int)useq); + + if (recv_msg_seq[current] == -1) { + fail("received message sequence differs\n"); + exit(1); + } + if (((uint32_t)recv_msg_seq[current]) != useq) { + fail("received message sequence differs (current: %u, got: %u, expected: %u)\n", + (unsigned)current, (unsigned)useq, (unsigned)recv_msg_seq[current]); + exit(1); + } + + current++; + } + } + while ((ret == GNUTLS_E_AGAIN || ret == GNUTLS_E_INTERRUPTED + || ret > 0)); + + gnutls_bye(session, GNUTLS_SHUT_WR); + + close(fd); + + gnutls_deinit(session); + + gnutls_anon_free_client_credentials(anoncred); + + gnutls_global_deinit(); +} + +static void terminate(void) +{ + int status; + assert(child); + kill(child, SIGTERM); + wait(&status); + exit(1); +} + +static void server(int fd) +{ + int ret; + gnutls_session_t session; + gnutls_anon_server_credentials_t anoncred; + char c; + + global_init(); + + if (debug) { + gnutls_global_set_log_function(server_log_func); + gnutls_global_set_log_level(2); + } + + gnutls_anon_allocate_server_credentials(&anoncred); + + gnutls_init(&session, GNUTLS_SERVER | GNUTLS_DATAGRAM); + gnutls_dtls_set_timeouts(session, get_dtls_retransmit_timeout(), get_timeout()); + gnutls_transport_set_push_function(session, odd_push); + gnutls_heartbeat_enable(session, GNUTLS_HB_PEER_ALLOWED_TO_SEND); + gnutls_dtls_set_mtu(session, 1500); + + /* avoid calling all the priority functions, since the defaults + * are adequate. + */ + gnutls_priority_set_direct(session, + "NONE:+VERS-DTLS1.0:+CIPHER-ALL:+MAC-ALL:+SIGN-ALL:+COMP-ALL:+ANON-ECDH:+CURVE-ALL", + NULL); + gnutls_credentials_set(session, GNUTLS_CRD_ANON, anoncred); + + gnutls_transport_set_int(session, fd); + + do { + ret = gnutls_handshake(session); + } + while (ret < 0 && gnutls_error_is_fatal(ret) == 0); + if (ret < 0) { + close(fd); + gnutls_deinit(session); + fail("server: Handshake has failed (%s)\n\n", + gnutls_strerror(ret)); + terminate(); + } + if (debug) + success("server: Handshake was completed\n"); + + if (debug) + success("server: TLS version is: %s\n", + gnutls_protocol_get_name + (gnutls_protocol_get_version(session))); + + gnutls_record_recv(session, &c, 1); + do { + do { + ret = gnutls_record_send(session, &c, 1); + } + while (ret == GNUTLS_E_AGAIN || ret == GNUTLS_E_INTERRUPTED); + + if (ret < 0) { + fail("send: %s\n", gnutls_strerror(ret)); + terminate(); + } + } + while (test_finished == 0); + + gnutls_transport_set_push_function(session, n_push); + do { + ret = gnutls_bye(session, GNUTLS_SHUT_WR); + } + while (ret == GNUTLS_E_AGAIN || ret == GNUTLS_E_INTERRUPTED); + + close(fd); + gnutls_deinit(session); + + gnutls_anon_free_server_credentials(anoncred); + + gnutls_global_deinit(); + + if (debug) + success("server: finished\n"); +} + +static void start(void) +{ + int fd[2]; + int ret; + + signal(SIGPIPE, SIG_IGN); + + ret = socketpair(AF_UNIX, SOCK_STREAM, 0, fd); + if (ret < 0) { + perror("socketpair"); + exit(1); + } + + child = fork(); + if (child < 0) { + perror("fork"); + fail("fork"); + exit(1); + } + + if (child) { + int status; + /* parent */ + close(fd[1]); + server(fd[0]); + wait(&status); + check_wait_status(status); + } else { + close(fd[0]); + client(fd[1]); + exit(0); + } +} + +void doit(void) +{ + start(); +} + +#endif /* _WIN32 */ |