1 files changed, 86 insertions, 0 deletions
diff --git a/plugin/auth_pam/auth_pam_v1.c b/plugin/auth_pam/auth_pam_v1.c
new file mode 100644
index 00000000..a38ef8f5
--- /dev/null
+++ b/plugin/auth_pam/auth_pam_v1.c
@@ -0,0 +1,86 @@
+/*
+   Copyright (c) 2011, 2018 MariaDB Corporation
+
+   This program 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; version 2 of the License.
+
+   This program 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 this program; if not, write to the Free Software
+   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111-1301 USA */
+
+#include <mysql/plugin_auth.h>
+
+struct param {
+  unsigned char buf[10240], *ptr, *cached;
+  int cached_len;
+  MYSQL_PLUGIN_VIO *vio;
+};
+
+static int roundtrip(struct param *param, const unsigned char *buf,
+                     int buf_len, unsigned char **pkt)
+{
+  if (param->cached && *param->cached && (buf[0] >> 1) == 2)
+  {
+    *pkt= param->cached;
+    param->cached= NULL;
+    return param->cached_len;
+  }
+  param->cached= NULL;
+  if (param->vio->write_packet(param->vio, buf, buf_len))
+    return -1;
+  return param->vio->read_packet(param->vio, pkt);
+}
+
+#include "auth_pam_base.c"
+
+static int pam_auth(MYSQL_PLUGIN_VIO *vio, MYSQL_SERVER_AUTH_INFO *info)
+{
+  struct param param;
+  param.vio = vio;
+
+  /* no user name yet ? read the client handshake packet with the user name */
+  if (info->user_name == 0)
+  {
+    if ((param.cached_len= vio->read_packet(vio, &param.cached)) < 0)
+      return CR_ERROR;
+  }
+  else
+    param.cached= NULL;
+
+  return pam_auth_base(&param, info);
+}
+
+
+#include "auth_pam_common.c"
+
+
+static int init(void *p __attribute__((unused)))
+{
+  if (use_cleartext_plugin)
+    info.client_auth_plugin= "mysql_clear_password";
+  return 0;
+}
+
+maria_declare_plugin(pam)
+{
+  MYSQL_AUTHENTICATION_PLUGIN,
+  &info,
+  "pam",
+  "Sergei Golubchik",
+  "PAM based authentication",
+  PLUGIN_LICENSE_GPL,
+  init,
+  NULL,
+  0x0100,
+  NULL,
+  vars,
+  "1.0",
+  MariaDB_PLUGIN_MATURITY_STABLE
+}
+maria_declare_plugin_end;