2 Unix SMB/CIFS implementation.
4 handle removal of deleted objects
6 Copyright (C) 2009 Andrew Tridgell
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program. If not, see <http://www.gnu.org/licenses/>.
24 #include "lib/events/events.h"
25 #include "dsdb/samdb/samdb.h"
26 #include "auth/auth.h"
27 #include "smbd/service.h"
28 #include "lib/messaging/irpc.h"
29 #include "dsdb/kcc/kcc_connection.h"
30 #include "dsdb/kcc/kcc_service.h"
31 #include <ldb_errors.h>
32 #include "../lib/util/dlinklist.h"
33 #include "librpc/gen_ndr/ndr_misc.h"
34 #include "librpc/gen_ndr/ndr_drsuapi.h"
35 #include "librpc/gen_ndr/ndr_drsblobs.h"
36 #include "param/param.h"
37 #include "dsdb/common/util.h"
40 check to see if any deleted objects need scavenging
42 NTSTATUS kccsrv_check_deleted(struct kccsrv_service *s, TALLOC_CTX *mem_ctx)
44 struct kccsrv_partition *part;
46 uint32_t tombstoneLifetime;
47 const struct dsdb_schema *schema;
48 bool add_recycled = false;
49 bool rcbin_enabled = false;
51 time_t t = time(NULL);
52 if (t - s->last_deleted_check < lpcfg_parm_int(s->task->lp_ctx, NULL, "kccsrv",
53 "check_deleted_interval", 600)) {
56 s->last_deleted_check = t;
57 DEBUG(11, ("Check deleted has kicked in !\n"));
59 ret = dsdb_tombstone_lifetime(s->samdb, &tombstoneLifetime);
60 if (ret != LDB_SUCCESS) {
61 DEBUG(1,(__location__ ": Failed to get tombstone lifetime\n"));
62 return NT_STATUS_INTERNAL_DB_CORRUPTION;
65 schema = dsdb_get_schema(s->samdb, mem_ctx);
67 return NT_STATUS_INTERNAL_DB_CORRUPTION;
70 if (dsdb_attribute_by_lDAPDisplayName(schema, "isRecycled") != NULL) {
74 if (dsdb_functional_level(s->samdb) >= DS_DOMAIN_FUNCTION_2008_R2) {
75 ret = samdb_recyclebin_enabled(s->samdb , &rcbin_enabled);
76 if (ret != LDB_SUCCESS) {
77 return NT_STATUS_INTERNAL_DB_CORRUPTION;
81 for (part=s->partitions; part; part=part->next) {
83 struct ldb_result *res;
84 const char *attrs[] = { "whenChanged", "isRecycled", NULL };
87 ret = dsdb_get_deleted_objects_dn(s->samdb, mem_ctx, part->dn, &do_dn);
88 if (ret != LDB_SUCCESS) {
89 /* some partitions have no Deleted Objects
93 ret = dsdb_search(s->samdb, do_dn, &res, do_dn, LDB_SCOPE_ONELEVEL, attrs,
94 DSDB_SEARCH_SHOW_RECYCLED, NULL);
96 if (ret != LDB_SUCCESS) {
97 DEBUG(1,(__location__ ": Failed to search for deleted objects in %s\n",
98 ldb_dn_get_linearized(do_dn)));
103 for (i=0; i<res->count; i++) {
105 time_t whenChanged = 0;
107 if (ldb_dn_compare(do_dn, res->msgs[i]->dn) == 0) {
108 /* Skip the Deleted Object Container */
111 tstring = ldb_msg_find_attr_as_string(res->msgs[i], "whenChanged", NULL);
113 whenChanged = ldb_string_to_time(tstring);
115 if (t - whenChanged > tombstoneLifetime*60*60*24) {
116 ret = dsdb_delete(s->samdb, res->msgs[i]->dn, DSDB_SEARCH_SHOW_DELETED);
117 if (ret != LDB_SUCCESS) {
118 DEBUG(1,(__location__ ": Failed to remove deleted object %s\n",
119 ldb_dn_get_linearized(res->msgs[i]->dn)));
121 DEBUG(4,("Removed deleted object %s\n",
122 ldb_dn_get_linearized(res->msgs[i]->dn)));
124 } else if (add_recycled & !ldb_msg_find_ldb_val(res->msgs[i], "isRecycled") && !rcbin_enabled) {
125 /* There is no isRecycled attribute and the recycle-bin
126 * is not enabled so set isRecycled to TRUE.
127 * We used to not set this attribute before
131 DEBUG(1, ("Adding isRecycled\n"));
132 struct ldb_message *msg = ldb_msg_new(mem_ctx);
135 return NT_STATUS_NO_MEMORY;
138 msg->dn = res->msgs[i]->dn;
139 ret = ldb_msg_add_string(msg, "isRecycled", "TRUE");
140 if (ret != LDB_SUCCESS) {
142 return NT_STATUS_NO_MEMORY;
144 msg->elements[msg->num_elements - 1].flags = LDB_FLAG_MOD_ADD;
146 ret = dsdb_modify(s->samdb, msg, DSDB_SEARCH_SHOW_DELETED);
147 if (ret != LDB_SUCCESS) {
149 return NT_STATUS_INTERNAL_DB_CORRUPTION;