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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-04 18:00:34 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-04 18:00:34 +0000
commit3f619478f796eddbba6e39502fe941b285dd97b1 (patch)
treee2c7b5777f728320e5b5542b6213fd3591ba51e2 /plugin/audit_null/audit_null.c
parentInitial commit. (diff)
downloadmariadb-3f619478f796eddbba6e39502fe941b285dd97b1.tar.xz
mariadb-3f619478f796eddbba6e39502fe941b285dd97b1.zip
Adding upstream version 1:10.11.6.upstream/1%10.11.6upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'plugin/audit_null/audit_null.c')
-rw-r--r--plugin/audit_null/audit_null.c213
1 files changed, 213 insertions, 0 deletions
diff --git a/plugin/audit_null/audit_null.c b/plugin/audit_null/audit_null.c
new file mode 100644
index 00000000..8f308b73
--- /dev/null
+++ b/plugin/audit_null/audit_null.c
@@ -0,0 +1,213 @@
+/* Copyright (c) 2006, 2011, Oracle and/or its affiliates.
+ Copyright (c) 2012, 2013, Monty Program Ab.
+
+ 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 St, Fifth Floor, Boston, MA 02110-1335 USA */
+
+#include <stdio.h>
+#include <mysql/plugin.h>
+#include <mysql/plugin_audit.h>
+
+#if !defined(__attribute__) && (defined(__cplusplus) || !defined(__GNUC__) || __GNUC__ == 2 && __GNUC_MINOR__ < 8)
+#define __attribute__(A)
+#endif
+
+#ifdef _MSC_VER
+#define snprintf _snprintf
+#endif
+
+static volatile int ncalls; /* for SHOW STATUS, see below */
+static volatile int ncalls_general_log;
+static volatile int ncalls_general_error;
+static volatile int ncalls_general_warning;
+static volatile int ncalls_general_result;
+
+FILE *f;
+
+/*
+ Initialize the plugin at server start or plugin installation.
+
+ SYNOPSIS
+ audit_null_plugin_init()
+
+ DESCRIPTION
+ Does nothing.
+
+ RETURN VALUE
+ 0 success
+ 1 failure (cannot happen)
+*/
+
+static int audit_null_plugin_init(void *arg __attribute__((unused)))
+{
+ ncalls= 0;
+ ncalls_general_log= 0;
+ ncalls_general_error= 0;
+ ncalls_general_warning= 0;
+ ncalls_general_result= 0;
+
+ f = fopen("audit_null_tables.log", "w");
+ if (!f)
+ return 1;
+
+ return 0;
+}
+
+
+/*
+ Terminate the plugin at server shutdown or plugin deinstallation.
+
+ SYNOPSIS
+ audit_null_plugin_deinit()
+ Does nothing.
+
+ RETURN VALUE
+ 0 success
+ 1 failure (cannot happen)
+
+*/
+
+static int audit_null_plugin_deinit(void *arg __attribute__((unused)))
+{
+ fclose(f);
+ return 0;
+}
+
+
+/*
+ Foo
+
+ SYNOPSIS
+ audit_null_notify()
+ thd connection context
+
+ DESCRIPTION
+*/
+
+static void audit_null_notify(MYSQL_THD thd __attribute__((unused)),
+ unsigned int event_class,
+ const void *event)
+{
+ /* prone to races, oh well */
+ ncalls++;
+ if (event_class == MYSQL_AUDIT_GENERAL_CLASS)
+ {
+ const struct mysql_event_general *event_general=
+ (const struct mysql_event_general *) event;
+ switch (event_general->event_subclass)
+ {
+ case MYSQL_AUDIT_GENERAL_LOG:
+ ncalls_general_log++;
+ fprintf(f, "%s\t>> %s\n", event_general->general_user,
+ event_general->general_query);
+ break;
+ case MYSQL_AUDIT_GENERAL_ERROR:
+ ncalls_general_error++;
+ break;
+ case MYSQL_AUDIT_GENERAL_WARNING:
+ ncalls_general_warning++;
+ break;
+ case MYSQL_AUDIT_GENERAL_RESULT:
+ ncalls_general_result++;
+ break;
+ default:
+ break;
+ }
+ }
+ else
+ if (event_class == MYSQL_AUDIT_TABLE_CLASS)
+ {
+ const struct mysql_event_table *event_table=
+ (const struct mysql_event_table *) event;
+ const char *ip= event_table->ip ? event_table->ip : "";
+ const char *op= 0;
+ char buf[1024];
+
+ switch (event_table->event_subclass)
+ {
+ case MYSQL_AUDIT_TABLE_LOCK:
+ op= event_table->read_only ? "read" : "write";
+ break;
+ case MYSQL_AUDIT_TABLE_CREATE:
+ op= "create";
+ break;
+ case MYSQL_AUDIT_TABLE_DROP:
+ op= "drop";
+ break;
+ case MYSQL_AUDIT_TABLE_ALTER:
+ op= "alter";
+ break;
+ case MYSQL_AUDIT_TABLE_RENAME:
+ snprintf(buf, sizeof(buf), "rename to %s.%s",
+ event_table->new_database.str, event_table->new_table.str);
+ buf[sizeof(buf)-1]= 0;
+ op= buf;
+ break;
+ }
+
+ fprintf(f, "%s[%s] @ %s [%s]\t%s.%s : %s\n",
+ event_table->priv_user, event_table->user,
+ event_table->host, ip,
+ event_table->database.str, event_table->table.str, op);
+ }
+}
+
+
+/*
+ Plugin type-specific descriptor
+*/
+
+static struct st_mysql_audit audit_null_descriptor=
+{
+ MYSQL_AUDIT_INTERFACE_VERSION, NULL, audit_null_notify,
+ { MYSQL_AUDIT_GENERAL_CLASSMASK | MYSQL_AUDIT_TABLE_CLASSMASK }
+};
+
+/*
+ Plugin status variables for SHOW STATUS
+*/
+
+static struct st_mysql_show_var simple_status[]=
+{
+ { "called", (char *) &ncalls, SHOW_INT },
+ { "general_error", (char *) &ncalls_general_error, SHOW_INT },
+ { "general_log", (char *) &ncalls_general_log, SHOW_INT },
+ { "general_result", (char *) &ncalls_general_result, SHOW_INT },
+ { "general_warning", (char *) &ncalls_general_error, SHOW_INT },
+ { 0, 0, 0}
+};
+
+
+/*
+ Plugin library descriptor
+*/
+
+mysql_declare_plugin(audit_null)
+{
+ MYSQL_AUDIT_PLUGIN, /* type */
+ &audit_null_descriptor, /* descriptor */
+ "AUDIT_NULL", /* name */
+ "Oracle Corp", /* author */
+ "Simple NULL Audit", /* description */
+ PLUGIN_LICENSE_GPL,
+ audit_null_plugin_init, /* init function (when loaded) */
+ audit_null_plugin_deinit, /* deinit function (when unloaded) */
+ 0x0002, /* version */
+ simple_status, /* status variables */
+ NULL, /* system variables */
+ NULL,
+ 0,
+}
+mysql_declare_plugin_end;
+