source4/dsdb/repl/replicated_objects.c

   1 /*
   2    Unix SMB/CIFS mplementation.
   3    Helper functions for applying replicated objects
   4
   5    Copyright (C) Stefan Metzmacher 2007
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 2 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program; if not, write to the Free Software
  19    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  20
  21 */
  22
  23 #include "includes.h"
  24 #include "dsdb/samdb/samdb.h"
  25 #include "lib/ldb/include/ldb_errors.h"
  26 #include "lib/util/dlinklist.h"
  27 #include "librpc/gen_ndr/ndr_misc.h"
  28 #include "librpc/gen_ndr/ndr_drsuapi.h"
  29 #include "librpc/gen_ndr/ndr_drsblobs.h"
  30
  31 static WERROR dsdb_convert_object(struct ldb_context *ldb,
  32                                   const struct dsdb_schema *schema,
  33                                   struct dsdb_extended_replicated_objects *ctr,
  34                                   const struct drsuapi_DsReplicaObjectListItemEx *in,
  35                                   TALLOC_CTX *mem_ctx,
  36                                   struct dsdb_extended_replicated_object *out)
  37 {
  38         NTSTATUS nt_status;
  39         WERROR status;
  40         uint32_t i;
  41         struct ldb_message *msg;
  42         struct replPropertyMetaDataBlob *md;
  43         struct ldb_val guid_value;
  44         NTTIME whenChanged = 0;
  45         time_t whenChanged_t;
  46         const char *whenChanged_s;
  47         const char *rdn_name;
  48         const struct ldb_val *rdn_value;
  49         const struct dsdb_attribute *rdn_attr;
  50         uint32_t rdn_attid;
  51         struct drsuapi_DsReplicaAttribute *name_a;
  52         struct drsuapi_DsReplicaMetaData *name_d;
  53         struct replPropertyMetaData1 *rdn_m;
  54         int ret;
  55
  56         if (!in->object.identifier) {
  57                 return WERR_FOOBAR;
  58         }
  59
  60         if (!in->object.identifier->dn || !in->object.identifier->dn[0]) {
  61                 return WERR_FOOBAR;
  62         }
  63
  64         msg = ldb_msg_new(mem_ctx);
  65         W_ERROR_HAVE_NO_MEMORY(msg);
  66
  67         msg->dn                 = ldb_dn_new(msg, ldb, in->object.identifier->dn);
  68         W_ERROR_HAVE_NO_MEMORY(msg->dn);
  69
  70         rdn_name        = ldb_dn_get_rdn_name(msg->dn);
  71         rdn_attr        = dsdb_attribute_by_lDAPDisplayName(schema, rdn_name);
  72         if (!rdn_attr) {
  73                 return WERR_FOOBAR;
  74         }
  75         rdn_attid       = rdn_attr->attributeID_id;
  76         rdn_value       = ldb_dn_get_rdn_val(msg->dn);
  77
  78         msg->num_elements       = in->object.attribute_ctr.num_attributes;
  79         msg->elements           = talloc_array(msg, struct ldb_message_element,
  80                                                msg->num_elements);
  81         W_ERROR_HAVE_NO_MEMORY(msg->elements);
  82
  83         for (i=0; i < msg->num_elements; i++) {
  84                 status = dsdb_attribute_drsuapi_to_ldb(schema,
  85                                                        &in->object.attribute_ctr.attributes[i],
  86                                                        msg->elements, &msg->elements[i]);
  87                 W_ERROR_NOT_OK_RETURN(status);
  88         }
  89
  90         if (in->object.attribute_ctr.num_attributes != 0 && !in->meta_data_ctr) {
  91                 return WERR_FOOBAR;
  92         }
  93
  94         if (in->object.attribute_ctr.num_attributes != in->meta_data_ctr->count) {
  95                 return WERR_FOOBAR;
  96         }
  97
  98         md = talloc(mem_ctx, struct replPropertyMetaDataBlob);
  99         W_ERROR_HAVE_NO_MEMORY(md);
 100
 101         md->version             = 1;
 102         md->reserved            = 0;
 103         md->ctr.ctr1.count      = in->meta_data_ctr->count;
 104         md->ctr.ctr1.reserved   = 0;
 105         md->ctr.ctr1.array      = talloc_array(mem_ctx,
 106                                                struct replPropertyMetaData1,
 107                                                md->ctr.ctr1.count + 1); /* +1 because of the RDN attribute */
 108         W_ERROR_HAVE_NO_MEMORY(md->ctr.ctr1.array);
 109
 110         for (i=0; i < in->meta_data_ctr->count; i++) {
 111                 struct drsuapi_DsReplicaAttribute *a;
 112                 struct drsuapi_DsReplicaMetaData *d;
 113                 struct replPropertyMetaData1 *m;
 114
 115                 a = &in->object.attribute_ctr.attributes[i];
 116                 d = &in->meta_data_ctr->meta_data[i];
 117                 m = &md->ctr.ctr1.array[i];
 118
 119                 m->attid                        = a->attid;
 120                 m->version                      = d->version;
 121                 m->orginating_time              = d->orginating_time;
 122                 m->orginating_invocation_id     = d->orginating_invocation_id;
 123                 m->orginating_usn               = d->orginating_usn;
 124                 m->local_usn                    = 0;
 125
 126                 if (d->orginating_time > whenChanged) {
 127                         whenChanged = d->orginating_time;
 128                 }
 129
 130                 if (a->attid == DRSUAPI_ATTRIBUTE_name) {
 131                         name_a = a;
 132                         name_d = d;
 133                         rdn_m = &md->ctr.ctr1.array[md->ctr.ctr1.count];
 134                 }
 135         }
 136
 137         if (!name_d) {
 138                 return WERR_FOOBAR;
 139         }
 140
 141         ret = ldb_msg_add_value(msg, rdn_attr->lDAPDisplayName, rdn_value, NULL);
 142         if (ret != LDB_SUCCESS) {
 143                 return WERR_FOOBAR;
 144         }
 145
 146         nt_status = ndr_push_struct_blob(&guid_value, msg, &in->object.identifier->guid,
 147                                          (ndr_push_flags_fn_t)ndr_push_GUID);
 148         if (!NT_STATUS_IS_OK(nt_status)) {
 149                 return ntstatus_to_werror(nt_status);
 150         }
 151         ret = ldb_msg_add_value(msg, "objectGUID", &guid_value, NULL);
 152         if (ret != LDB_SUCCESS) {
 153                 return WERR_FOOBAR;
 154         }
 155
 156         whenChanged_t = nt_time_to_unix(whenChanged);
 157         whenChanged_s = ldb_timestring(msg, whenChanged_t);
 158         W_ERROR_HAVE_NO_MEMORY(whenChanged_s);
 159         ret = ldb_msg_add_string(msg, "whenChanged", whenChanged_s);
 160         if (ret != LDB_SUCCESS) {
 161                 return WERR_FOOBAR;
 162         }
 163
 164         rdn_m->attid                            = rdn_attid;
 165         rdn_m->version                          = name_d->version;
 166         rdn_m->orginating_time                  = name_d->orginating_time;
 167         rdn_m->orginating_invocation_id         = name_d->orginating_invocation_id;
 168         rdn_m->orginating_usn                   = name_d->orginating_usn;
 169         rdn_m->local_usn                        = 0;
 170         md->ctr.ctr1.count++;
 171
 172         out->msg        = msg;
 173         out->guid_value = guid_value;
 174         out->meta_data  = md;
 175         return WERR_OK;
 176 }
 177
 178 WERROR dsdb_extended_replicated_objects_commit(struct ldb_context *ldb,
 179                                                const char *partition_dn,
 180                                                const struct dsdb_schema *schema,
 181                                                uint32_t ctr_level,
 182                                                const struct drsuapi_DsGetNCChangesCtr1 *ctr1,
 183                                                const struct drsuapi_DsGetNCChangesCtr6 *ctr6,
 184                                                TALLOC_CTX *mem_ctx,
 185                                                struct dsdb_extended_replicated_objects **_out)
 186 {
 187         WERROR status;
 188         struct dsdb_extended_replicated_objects *out;
 189         struct ldb_result *ext_res;
 190         const struct drsuapi_DsReplicaOIDMapping_Ctr *mapping_ctr;
 191         uint32_t object_count;
 192         struct drsuapi_DsReplicaObjectListItemEx *first_object;
 193         struct drsuapi_DsReplicaObjectListItemEx *cur;
 194         uint32_t i;
 195         int ret;
 196
 197         switch (ctr_level) {
 198         case 1:
 199                 mapping_ctr             = &ctr1->mapping_ctr;
 200                 object_count            = ctr1->object_count;
 201                 first_object            = ctr1->first_object;
 202                 break;
 203         case 6:
 204                 mapping_ctr             = &ctr6->mapping_ctr;
 205                 object_count            = ctr6->object_count;
 206                 first_object            = ctr6->first_object;
 207                 break;
 208         default:
 209                 return WERR_INVALID_PARAM;
 210         }
 211
 212         status = dsdb_verify_oid_mappings(schema, mapping_ctr);
 213         W_ERROR_NOT_OK_RETURN(status);
 214
 215         out = talloc_zero(mem_ctx, struct dsdb_extended_replicated_objects);
 216         W_ERROR_HAVE_NO_MEMORY(out);
 217
 218         out->partition_dn = ldb_dn_new(out, ldb, partition_dn);
 219         W_ERROR_HAVE_NO_MEMORY(out->partition_dn);
 220
 221         out->num_objects        = object_count;
 222         out->objects            = talloc_array(out,
 223                                                struct dsdb_extended_replicated_object,
 224                                                out->num_objects);
 225         W_ERROR_HAVE_NO_MEMORY(out->objects);
 226
 227         for (i=0, cur = first_object; cur; cur = cur->next_object, i++) {
 228                 if (i == out->num_objects) {
 229                         return WERR_FOOBAR;
 230                 }
 231
 232                 status = dsdb_convert_object(ldb, schema, out, cur, out->objects, &out->objects[i]);
 233                 W_ERROR_NOT_OK_RETURN(status);
 234         }
 235         if (i != out->num_objects) {
 236                 return WERR_FOOBAR;
 237         }
 238
 239         /* TODO: handle linked attributes */
 240
 241         ret = ldb_extended(ldb, DSDB_EXTENDED_REPLICATED_OBJECTS_OID, out, &ext_res);
 242         if (ret != LDB_SUCCESS) {
 243                 DEBUG(0,("Failed to apply records: %d\n",
 244                         ret));
 245                 talloc_free(out);
 246                 return WERR_FOOBAR;
 247         }
 248         talloc_free(ext_res);
 249
 250         if (_out) {
 251                 *_out = out;
 252         } else {
 253                 talloc_free(out);
 254         }
 255
 256         return WERR_OK;
 257 }