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MDEV-10441 Document the server_audit_loc_info variable

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fix PLUGIN_VAR_NOSYSVAR | PLUGIN_VAR_NOCMDOPT plugin thdvars to work.
use that for server_audit_loc_info
This commit is contained in:
Sergei Golubchik 2016-09-26 17:48:08 +02:00
parent c91fdb66db
commit d61e5260fb
4 changed files with 80 additions and 104 deletions
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3
mysql-test/suite/plugins/r/server_audit.result
View file

@ -8,7 +8,6 @@ server_audit_file_rotate_now OFF
server_audit_file_rotate_size 1000000
server_audit_file_rotations 9
server_audit_incl_users
server_audit_loc_info
server_audit_logging OFF
server_audit_mode 0
server_audit_output_type file
@ -72,7 +71,6 @@ server_audit_file_rotate_now OFF
server_audit_file_rotate_size 1000000
server_audit_file_rotations 9
server_audit_incl_users odin, root, dva, tri
server_audit_loc_info
server_audit_logging ON
server_audit_mode 0
server_audit_output_type file
@ -218,7 +216,6 @@ server_audit_file_rotate_now OFF
server_audit_file_rotate_size 1000000
server_audit_file_rotations 9
server_audit_incl_users odin, root, dva, tri
server_audit_loc_info
server_audit_logging ON
server_audit_mode 1
server_audit_output_type file

3
mysql-test/suite/plugins/r/thread_pool_server_audit.result
View file

@ -8,7 +8,6 @@ server_audit_file_rotate_now OFF
server_audit_file_rotate_size 1000000
server_audit_file_rotations 9
server_audit_incl_users
server_audit_loc_info
server_audit_logging OFF
server_audit_mode 0
server_audit_output_type file
@ -72,7 +71,6 @@ server_audit_file_rotate_now OFF
server_audit_file_rotate_size 1000000
server_audit_file_rotations 9
server_audit_incl_users odin, root, dva, tri
server_audit_loc_info
server_audit_logging ON
server_audit_mode 0
server_audit_output_type file
@ -218,7 +216,6 @@ server_audit_file_rotate_now OFF
server_audit_file_rotate_size 1000000
server_audit_file_rotations 9
server_audit_incl_users odin, root, dva, tri
server_audit_loc_info
server_audit_logging ON
server_audit_mode 1
server_audit_output_type file

5
plugin/server_audit/server_audit.c
View file

@ -429,9 +429,8 @@ static MYSQL_SYSVAR_UINT(query_log_limit, query_log_limit,
char locinfo_ini_value[sizeof(struct connection_info)+4];
static MYSQL_THDVAR_STR(loc_info,
PLUGIN_VAR_READONLY | PLUGIN_VAR_MEMALLOC,
"Auxiliary info.", NULL, NULL,
locinfo_ini_value);
PLUGIN_VAR_NOSYSVAR | PLUGIN_VAR_NOCMDOPT | PLUGIN_VAR_MEMALLOC,
"Internal info", NULL, NULL, locinfo_ini_value);
static const char *syslog_facility_names[]=
{

173
sql/sql_plugin.cc
View file

@ -2756,6 +2756,22 @@ static st_bookmark *find_bookmark(const char *plugin, const char *name,
}
static size_t var_storage_size(int flags)
{
switch (flags & PLUGIN_VAR_TYPEMASK) {
case PLUGIN_VAR_BOOL: return sizeof(my_bool);
case PLUGIN_VAR_INT: return sizeof(int);
case PLUGIN_VAR_LONG: return sizeof(long);
case PLUGIN_VAR_ENUM: return sizeof(long);
case PLUGIN_VAR_LONGLONG: return sizeof(ulonglong);
case PLUGIN_VAR_SET: return sizeof(ulonglong);
case PLUGIN_VAR_STR: return sizeof(char*);
case PLUGIN_VAR_DOUBLE: return sizeof(double);
default: DBUG_ASSERT(0); return 0;
}
}
/*
returns a bookmark for thd-local variables, creating if neccessary.
returns null for non thd-local variables.
@ -2764,39 +2780,13 @@ static st_bookmark *find_bookmark(const char *plugin, const char *name,
static st_bookmark *register_var(const char *plugin, const char *name,
int flags)
{
uint length= strlen(plugin) + strlen(name) + 3, size= 0, offset, new_size;
uint length= strlen(plugin) + strlen(name) + 3, size, offset, new_size;
st_bookmark *result;
char *varname, *p;
if (!(flags & PLUGIN_VAR_THDLOCAL))
return NULL;
switch (flags & PLUGIN_VAR_TYPEMASK) {
case PLUGIN_VAR_BOOL:
size= sizeof(my_bool);
break;
case PLUGIN_VAR_INT:
size= sizeof(int);
break;
case PLUGIN_VAR_LONG:
case PLUGIN_VAR_ENUM:
size= sizeof(long);
break;
case PLUGIN_VAR_LONGLONG:
case PLUGIN_VAR_SET:
size= sizeof(ulonglong);
break;
case PLUGIN_VAR_STR:
size= sizeof(char*);
break;
case PLUGIN_VAR_DOUBLE:
size= sizeof(double);
break;
default:
DBUG_ASSERT(0);
return NULL;
};
DBUG_ASSERT(flags & PLUGIN_VAR_THDLOCAL);
size= var_storage_size(flags);
varname= ((char*) my_alloca(length));
strxmov(varname + 1, plugin, "_", name, NullS);
for (p= varname + 1; *p; p++)
@ -3005,25 +2995,17 @@ void sync_dynamic_session_variables(THD* thd, bool global_lock)
*/
for (idx= 0; idx < bookmark_hash.records; idx++)
{
sys_var_pluginvar *pi;
sys_var *var;
st_bookmark *v= (st_bookmark*) my_hash_element(&bookmark_hash,idx);
if (v->version <= thd->variables.dynamic_variables_version)
continue; /* already in thd->variables */
if (!(var= intern_find_sys_var(v->key + 1, v->name_len)) ||
!(pi= var->cast_pluginvar()) ||
v->key[0] != plugin_var_bookmark_key(pi->plugin_var->flags))
continue;
/* Here we do anything special that may be required of the data types */
if ((pi->plugin_var->flags & PLUGIN_VAR_TYPEMASK) == PLUGIN_VAR_STR &&
pi->plugin_var->flags & PLUGIN_VAR_MEMALLOC)
if ((v->key[0] & PLUGIN_VAR_TYPEMASK) == PLUGIN_VAR_STR &&
v->key[0] & BOOKMARK_MEMALLOC)
{
int offset= ((thdvar_str_t *)(pi->plugin_var))->offset;
char **pp= (char**) (thd->variables.dynamic_variables_ptr + offset);
char **pp= (char**) (thd->variables.dynamic_variables_ptr + v->offset);
if (*pp)
*pp= my_strdup(*pp, MYF(MY_WME|MY_FAE));
}
@ -3284,6 +3266,48 @@ bool sys_var_pluginvar::session_update(THD *thd, set_var *var)
return false;
}
static const void *var_def_ptr(st_mysql_sys_var *pv)
{
switch (pv->flags & (PLUGIN_VAR_TYPEMASK | PLUGIN_VAR_THDLOCAL)) {
case PLUGIN_VAR_INT:
return &((sysvar_uint_t*) pv)->def_val;
case PLUGIN_VAR_LONG:
return &((sysvar_ulong_t*) pv)->def_val;
case PLUGIN_VAR_LONGLONG:
return &((sysvar_ulonglong_t*) pv)->def_val;
case PLUGIN_VAR_ENUM:
return &((sysvar_enum_t*) pv)->def_val;
case PLUGIN_VAR_SET:
return &((sysvar_set_t*) pv)->def_val;
case PLUGIN_VAR_BOOL:
return &((sysvar_bool_t*) pv)->def_val;
case PLUGIN_VAR_STR:
return &((sysvar_str_t*) pv)->def_val;
case PLUGIN_VAR_DOUBLE:
return &((sysvar_double_t*) pv)->def_val;
case PLUGIN_VAR_INT | PLUGIN_VAR_THDLOCAL:
return &((thdvar_uint_t*) pv)->def_val;
case PLUGIN_VAR_LONG | PLUGIN_VAR_THDLOCAL:
return &((thdvar_ulong_t*) pv)->def_val;
case PLUGIN_VAR_LONGLONG | PLUGIN_VAR_THDLOCAL:
return &((thdvar_ulonglong_t*) pv)->def_val;
case PLUGIN_VAR_ENUM | PLUGIN_VAR_THDLOCAL:
return &((thdvar_enum_t*) pv)->def_val;
case PLUGIN_VAR_SET | PLUGIN_VAR_THDLOCAL:
return &((thdvar_set_t*) pv)->def_val;
case PLUGIN_VAR_BOOL | PLUGIN_VAR_THDLOCAL:
return &((thdvar_bool_t*) pv)->def_val;
case PLUGIN_VAR_STR | PLUGIN_VAR_THDLOCAL:
return &((thdvar_str_t*) pv)->def_val;
case PLUGIN_VAR_DOUBLE | PLUGIN_VAR_THDLOCAL:
return &((thdvar_double_t*) pv)->def_val;
default:
DBUG_ASSERT(0);
return NULL;
}
}
bool sys_var_pluginvar::global_update(THD *thd, set_var *var)
{
DBUG_ASSERT(!is_readonly());
@ -3293,60 +3317,7 @@ bool sys_var_pluginvar::global_update(THD *thd, set_var *var)
const void *src= &var->save_result;
if (!var->value)
{
switch (plugin_var->flags & (PLUGIN_VAR_TYPEMASK | PLUGIN_VAR_THDLOCAL)) {
case PLUGIN_VAR_INT:
src= &((sysvar_uint_t*) plugin_var)->def_val;
break;
case PLUGIN_VAR_LONG:
src= &((sysvar_ulong_t*) plugin_var)->def_val;
break;
case PLUGIN_VAR_LONGLONG:
src= &((sysvar_ulonglong_t*) plugin_var)->def_val;
break;
case PLUGIN_VAR_ENUM:
src= &((sysvar_enum_t*) plugin_var)->def_val;
break;
case PLUGIN_VAR_SET:
src= &((sysvar_set_t*) plugin_var)->def_val;
break;
case PLUGIN_VAR_BOOL:
src= &((sysvar_bool_t*) plugin_var)->def_val;
break;
case PLUGIN_VAR_STR:
src= &((sysvar_str_t*) plugin_var)->def_val;
break;
case PLUGIN_VAR_DOUBLE:
src= &((sysvar_double_t*) plugin_var)->def_val;
break;
case PLUGIN_VAR_INT | PLUGIN_VAR_THDLOCAL:
src= &((thdvar_uint_t*) plugin_var)->def_val;
break;
case PLUGIN_VAR_LONG | PLUGIN_VAR_THDLOCAL:
src= &((thdvar_ulong_t*) plugin_var)->def_val;
break;
case PLUGIN_VAR_LONGLONG | PLUGIN_VAR_THDLOCAL:
src= &((thdvar_ulonglong_t*) plugin_var)->def_val;
break;
case PLUGIN_VAR_ENUM | PLUGIN_VAR_THDLOCAL:
src= &((thdvar_enum_t*) plugin_var)->def_val;
break;
case PLUGIN_VAR_SET | PLUGIN_VAR_THDLOCAL:
src= &((thdvar_set_t*) plugin_var)->def_val;
break;
case PLUGIN_VAR_BOOL | PLUGIN_VAR_THDLOCAL:
src= &((thdvar_bool_t*) plugin_var)->def_val;
break;
case PLUGIN_VAR_STR | PLUGIN_VAR_THDLOCAL:
src= &((thdvar_str_t*) plugin_var)->def_val;
break;
case PLUGIN_VAR_DOUBLE | PLUGIN_VAR_THDLOCAL:
src= &((thdvar_double_t*) plugin_var)->def_val;
break;
default:
DBUG_ASSERT(0);
}
}
src= var_def_ptr(plugin_var);
plugin_var->update(thd, plugin_var, tgt, src);
return false;
@ -3713,7 +3684,18 @@ static int construct_options(MEM_ROOT *mem_root, struct st_plugin_int *tmp,
*(int*)(opt + 1)= offset= v->offset;
if (opt->flags & PLUGIN_VAR_NOCMDOPT)
{
char *val= global_system_variables.dynamic_variables_ptr + offset;
if (((opt->flags & PLUGIN_VAR_TYPEMASK) == PLUGIN_VAR_STR) &&
(opt->flags & PLUGIN_VAR_MEMALLOC))
{
char *def_val= *(char**)var_def_ptr(opt);
*(char**)val= def_val ? my_strdup(def_val, MYF(0)) : NULL;
}
else
memcpy(val, var_def_ptr(opt), var_storage_size(opt->flags));
continue;
}
optname= (char*) memdup_root(mem_root, v->key + 1,
(optnamelen= v->name_len) + 1);
@ -3912,9 +3894,10 @@ static int test_plugin_options(MEM_ROOT *tmp_root, struct st_plugin_int *tmp,
*str->value= strdup_root(mem_root, *str->value);
}
var= find_bookmark(plugin_name.str, o->name, o->flags);
if (o->flags & PLUGIN_VAR_NOSYSVAR)
continue;
if ((var= find_bookmark(plugin_name.str, o->name, o->flags)))
if (var)
v= new (mem_root) sys_var_pluginvar(&chain, var->key + 1, o, tmp);
else
{