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45807028d4
This is generic enough that it could be used in all code. Signed-off-by: Stefan Metzmacher <metze@samba.org> Reviewed-by: Volker Lendecke <vl@samba.org> Autobuild-User(master): Stefan Metzmacher <metze@samba.org> Autobuild-Date(master): Fri Jul 18 15:43:33 CEST 2014 on sn-devel-104
116 lines
2.7 KiB
C
116 lines
2.7 KiB
C
/*
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* Samba Unix/Linux SMB client library
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*
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* Copyright (C) Gregor Beck 2011
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* @brief Notify smbd about idmap changes
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* @file msg_idmap.c
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* @author Gregor Beck <gb@sernet.de>
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* @date Feb 2011
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*
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*/
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#include "includes.h"
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#include "messages.h"
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#include "lib/id_cache.h"
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#include "../lib/util/memcache.h"
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#include "idmap_cache.h"
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#include "../librpc/gen_ndr/ndr_security.h"
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#include "../libcli/security/dom_sid.h"
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bool id_cache_ref_parse(const char* str, struct id_cache_ref* id)
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{
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struct dom_sid sid;
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unsigned long ul;
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char c, trash;
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if (sscanf(str, "%cID %lu%c", &c, &ul, &trash) == 2) {
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switch(c) {
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case 'G':
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id->id.gid = ul;
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id->type = GID;
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return true;
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case 'U':
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id->id.uid = ul;
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id->type = UID;
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return true;
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default:
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break;
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}
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} else if (string_to_sid(&sid, str)) {
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id->id.sid = sid;
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id->type = SID;
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return true;
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} else if (strncmp(str, "USER ", 5) == 0) {
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id->id.name = str + 5;
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id->type = USERNAME;
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return true;
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}
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return false;
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}
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static bool delete_getpwnam_cache(const char *username)
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{
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DATA_BLOB name = data_blob_string_const_null(username);
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DEBUG(6, ("Delete passwd struct for %s from memcache\n",
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username));
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memcache_delete(NULL, GETPWNAM_CACHE, name);
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return true;
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}
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void id_cache_delete_from_cache(const struct id_cache_ref* id)
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{
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switch(id->type) {
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case UID:
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idmap_cache_del_uid(id->id.uid);
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break;
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case GID:
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idmap_cache_del_gid(id->id.gid);
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break;
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case SID:
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idmap_cache_del_sid(&id->id.sid);
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break;
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case USERNAME:
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delete_getpwnam_cache(id->id.name);
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default:
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break;
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}
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}
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void id_cache_delete_message(struct messaging_context *msg_ctx,
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void *private_data,
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uint32_t msg_type,
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struct server_id server_id,
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DATA_BLOB* data)
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{
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const char *msg = (data && data->data) ? (const char *)data->data : "<NULL>";
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struct id_cache_ref id;
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if (!id_cache_ref_parse(msg, &id)) {
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DEBUG(0, ("Invalid ?ID: %s\n", msg));
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return;
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}
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id_cache_delete_from_cache(&id);
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}
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void id_cache_register_msgs(struct messaging_context *ctx)
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{
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messaging_register(ctx, NULL, ID_CACHE_DELETE, id_cache_delete_message);
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}
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