diff options
Diffstat (limited to 'plugin')
| -rw-r--r-- | plugin/audit_null/Makefile.am | 32 | ||||
| -rw-r--r-- | plugin/audit_null/audit_null.c | 130 | ||||
| -rw-r--r-- | plugin/audit_null/plug.in | 4 |
3 files changed, 166 insertions, 0 deletions
diff --git a/plugin/audit_null/Makefile.am b/plugin/audit_null/Makefile.am new file mode 100644 index 00000000000..d57a72f8c18 --- /dev/null +++ b/plugin/audit_null/Makefile.am @@ -0,0 +1,32 @@ +# Copyright (C) 2007 MySQL 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 02110-1301 USA + +#Makefile.am example for a plugin + +pkgplugindir= $(pkglibdir)/plugin + +AM_CPPFLAGS = -I$(top_srcdir)/include + +EXTRA_LTLIBRARIES= adt_null.la +pkgplugin_LTLIBRARIES= @plugin_audit_null_shared_target@ +adt_null_la_LDFLAGS= -module -rpath $(pkgplugindir) +adt_null_la_CPPFLAGS= $(AM_CPPFLAGS) -DMYSQL_DYNAMIC_PLUGIN +adt_null_la_SOURCES= audit_null.c + +EXTRA_LIBRARIES= libadtnull.a +noinst_LIBRARIES= @plugin_audit_null_static_target@ +libadtnull_a_SOURCES= audit_null.c + +EXTRA_DIST= plug.in diff --git a/plugin/audit_null/audit_null.c b/plugin/audit_null/audit_null.c new file mode 100644 index 00000000000..52a9df08cf4 --- /dev/null +++ b/plugin/audit_null/audit_null.c @@ -0,0 +1,130 @@ +/* Copyright (C) 2006-2007 MySQL 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 02110-1301 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 + +static volatile int number_of_calls; /* for SHOW STATUS, see below */ + + +/* + 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))) +{ + number_of_calls= 0; + 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))) +{ + printf("audit_null was invoked %u times\n", number_of_calls); + return(0); +} + + +/* + Foo + + SYNOPSIS + audit_null_notify() + thd connection context + + DESCRIPTION +*/ + +static void audit_null_notify(MYSQL_THD thd __attribute__((unused)), + const struct mysql_event *event + __attribute__((unused))) +{ + /* prone to races, oh well */ + number_of_calls++; +} + + +/* + Plugin type-specific descriptor +*/ + +static struct st_mysql_audit audit_null_descriptor= +{ + MYSQL_AUDIT_INTERFACE_VERSION, /* interface version */ + NULL, /* release_thd function */ + audit_null_notify, /* notify function */ + { (unsigned long) -1 } /* class mask */ +}; + +/* + Plugin status variables for SHOW STATUS +*/ + +static struct st_mysql_show_var simple_status[]= +{ + {"audit_null_called", (char *)&number_of_calls, SHOW_INT}, + {0,0,0} +}; + + +/* + Plugin library descriptor +*/ + +mysql_declare_plugin(audit_null) +{ + MYSQL_AUDIT_PLUGIN, /* type */ + &audit_null_descriptor, /* descriptor */ + "NULL_AUDIT", /* name */ + "MySQL AB", /* author */ + "Simple NULL Audit", /* description */ + PLUGIN_LICENSE_GPL, + audit_null_plugin_init, /* init function (when loaded) */ + audit_null_plugin_deinit, /* deinit function (when unloaded) */ + 0x0001, /* version */ + simple_status, /* status variables */ + NULL, /* system variables */ + NULL +} +mysql_declare_plugin_end; + diff --git a/plugin/audit_null/plug.in b/plugin/audit_null/plug.in new file mode 100644 index 00000000000..15b1a48b408 --- /dev/null +++ b/plugin/audit_null/plug.in @@ -0,0 +1,4 @@ +MYSQL_PLUGIN(audit_null, [NULL Audit Plug-in], + [Simple black-hole Audit example plug-in]) +MYSQL_PLUGIN_DYNAMIC(audit_null, [adt_null.la]) +MYSQL_PLUGIN_STATIC(audit_null, [libadtnull.a]) |