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/*
* Samba Unix/Linux SMB client library
*
* Copyright (C) Gregor Beck 2011
*
* 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; either version 3 of the License, or
* (at your option) any later version.
*
* 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, see <http://www.gnu.org/licenses/>.
*/
/**
* @brief Notify smbd about idmap changes
* @file msg_idmap.c
* @author Gregor Beck <gb@sernet.de>
* @date Feb 2011
*
*/
#include "includes.h"
#include "messages.h"
#include "lib/id_cache.h"
#include "../lib/util/memcache.h"
#include "idmap_cache.h"
#include "../librpc/gen_ndr/ndr_security.h"
#include "../libcli/security/dom_sid.h"
bool id_cache_ref_parse(const char* str, struct id_cache_ref* id)
{
struct dom_sid sid;
unsigned long ul;
char c, trash;
if (sscanf(str, "%cID %lu%c", &c, &ul, &trash) == 2) {
switch(c) {
case 'G':
id->id.gid = ul;
id->type = GID;
return true;
case 'U':
id->id.uid = ul;
id->type = UID;
return true;
default:
break;
}
} else if (string_to_sid(&sid, str)) {
id->id.sid = sid;
id->type = SID;
return true;
} else if (strncmp(str, "USER ", 5) == 0) {
id->id.name = str + 5;
id->type = USERNAME;
return true;
}
return false;
}
static bool delete_getpwnam_cache(const char *username)
{
DATA_BLOB name = data_blob_string_const_null(username);
DEBUG(6, ("Delete passwd struct for %s from memcache\n",
username));
memcache_delete(NULL, GETPWNAM_CACHE, name);
return true;
}
void id_cache_delete_from_cache(const struct id_cache_ref* id)
{
switch(id->type) {
case UID:
idmap_cache_del_uid(id->id.uid);
break;
case GID:
idmap_cache_del_gid(id->id.gid);
break;
case SID:
idmap_cache_del_sid(&id->id.sid);
break;
case USERNAME:
delete_getpwnam_cache(id->id.name);
default:
break;
}
}
void id_cache_delete_message(struct messaging_context *msg_ctx,
void *private_data,
uint32_t msg_type,
struct server_id server_id,
DATA_BLOB* data)
{
const char *msg = (data && data->data) ? (const char *)data->data : "<NULL>";
struct id_cache_ref id;
if (!id_cache_ref_parse(msg, &id)) {
DEBUG(0, ("Invalid ?ID: %s\n", msg));
return;
}
id_cache_delete_from_cache(&id);
}
void id_cache_register_msgs(struct messaging_context *ctx)
{
messaging_register(ctx, NULL, ID_CACHE_DELETE, id_cache_delete_message);
}
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