--- /dev/null
+/*
+ Unix SMB/CIFS implementation.
+
+ DRS Replica Information
+
+ Copyright (C) Erick Nogueira do Nascimento 2009
+
+ 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/>.
+
+ */
+
+#include "includes.h"
+#include "dsdb/samdb/samdb.h"
+#include "auth/auth.h"
+#include "smbd/service.h"
+#include "lib/events/events.h"
+#include "lib/messaging/irpc.h"
+#include "dsdb/kcc/kcc_service.h"
+#include "lib/ldb/include/ldb_errors.h"
+#include "../lib/util/dlinklist.h"
+#include "librpc/gen_ndr/ndr_misc.h"
+#include "librpc/gen_ndr/ndr_drsuapi.h"
+#include "librpc/gen_ndr/ndr_drsblobs.h"
+#include "param/param.h"
+
+struct ncList {
+ struct ldb_dn *dn;
+ struct ncList *prev, *next;
+};
+
+struct neighList {
+ struct drsuapi_DsReplicaNeighbour *neigh;
+ struct neighList *prev, *next;
+};
+
+static WERROR copy_repsfrom_1_to_2(TALLOC_CTX *mem_ctx,
+ struct repsFromTo2 **reps2,
+ struct repsFromTo1 *reps1)
+{
+ struct repsFromTo2* reps;
+
+ reps = talloc_zero(mem_ctx, struct repsFromTo2);
+ W_ERROR_HAVE_NO_MEMORY(reps);
+
+ reps->blobsize = reps1->blobsize;
+ reps->consecutive_sync_failures = reps1->consecutive_sync_failures;
+ reps->last_attempt = reps1->last_attempt;
+ reps->last_success = reps1->last_success;
+ reps->other_info = talloc_zero(mem_ctx, struct repsFromTo2OtherInfo);
+ W_ERROR_HAVE_NO_MEMORY(reps->other_info);
+ reps->other_info->dns_name1 = reps1->other_info->dns_name;
+ reps->replica_flags = reps1->replica_flags;
+ memcpy(reps->schedule, reps1->schedule, sizeof(reps1->schedule));
+ reps->reserved = reps1->reserved;
+ reps->highwatermark = reps1->highwatermark;
+ reps->source_dsa_obj_guid = reps1->source_dsa_obj_guid;
+ reps->source_dsa_invocation_id = reps1->source_dsa_invocation_id;
+ reps->transport_guid = reps1->transport_guid;
+
+ *reps2 = reps;
+ return WERR_OK;
+}
+
+static WERROR fill_neighbor_from_repsFrom(TALLOC_CTX *mem_ctx,
+ struct ldb_context *samdb,
+ struct ldb_dn *nc_dn,
+ struct drsuapi_DsReplicaNeighbour *neigh,
+ struct repsFromTo2 *reps_from)
+{
+ WERROR status;
+ struct ldb_dn *source_dsa_dn;
+ int ret;
+ char *dsa_guid_str;
+ struct ldb_dn *transport_obj_dn = NULL;
+
+ neigh->source_dsa_address = reps_from->other_info->dns_name1;
+ neigh->replica_flags = reps_from->replica_flags;
+ neigh->last_attempt = reps_from->last_attempt;
+ neigh->source_dsa_obj_guid = reps_from->source_dsa_obj_guid;
+
+ dsa_guid_str = GUID_string(mem_ctx, &reps_from->source_dsa_obj_guid);
+ W_ERROR_HAVE_NO_MEMORY(dsa_guid_str);
+ ret = dsdb_find_dn_by_guid(samdb, mem_ctx, dsa_guid_str, &source_dsa_dn);
+
+ if (ret != LDB_SUCCESS) {
+ DEBUG(0,(__location__ ": Failed to find DN for neighbor GUID %s\n",
+ dsa_guid_str));
+ status = WERR_DS_DRA_INTERNAL_ERROR;
+ goto DONE;
+ }
+
+ neigh->source_dsa_obj_dn = ldb_dn_get_linearized(source_dsa_dn);
+ neigh->naming_context_dn = ldb_dn_get_linearized(nc_dn);
+
+ if (dsdb_find_guid_by_dn(samdb, nc_dn, &neigh->naming_context_obj_guid)
+ != LDB_SUCCESS) {
+ status = WERR_DS_DRA_INTERNAL_ERROR;
+ goto DONE;
+ }
+
+ if (!GUID_all_zero(&reps_from->transport_guid)) {
+ char *transp_guid_str = GUID_string(mem_ctx, &reps_from->transport_guid);
+ W_ERROR_HAVE_NO_MEMORY(transp_guid_str);
+ if (dsdb_find_dn_by_guid(samdb, mem_ctx, transp_guid_str,
+ &transport_obj_dn) != LDB_SUCCESS)
+ {
+ status = WERR_DS_DRA_INTERNAL_ERROR;
+ goto DONE;
+ }
+ }
+
+ neigh->transport_obj_dn = ldb_dn_get_linearized(transport_obj_dn);
+ neigh->source_dsa_invocation_id = reps_from->source_dsa_invocation_id;
+ neigh->transport_obj_guid = reps_from->transport_guid;
+ neigh->highest_usn = reps_from->highwatermark.highest_usn;
+ neigh->tmp_highest_usn = reps_from->highwatermark.tmp_highest_usn;
+ neigh->last_success = reps_from->last_success;
+ neigh->result_last_attempt = reps_from->result_last_attempt;
+ neigh->consecutive_sync_failures = reps_from->consecutive_sync_failures;
+ neigh->reserved = 0; /* Unused. MUST be 0. */
+
+ /* If everything went fine so far, set the status to OK */
+ status = WERR_OK;
+DONE:
+ return status;
+}
+
+/*
+ * See details on MS-DRSR 4.1.13.3, for infoType DS_REPL_INFO_NEIGHBORS
+ * */
+static WERROR kccdrs_replica_get_info_neighbours(TALLOC_CTX *mem_ctx,
+ struct ldb_context *samdb,
+ struct drsuapi_DsReplicaGetInfo *r,
+ union drsuapi_DsReplicaInfo *reply,
+ int base_index,
+ struct GUID req_src_dsa_guid,
+ struct ncList *nc_list)
+{
+ WERROR status;
+
+ int i, j, k;
+ struct ldb_dn *nc_dn = NULL;
+ struct ncList *p_nc_list = NULL;
+
+ struct repsFromToBlob *reps_from_blob = NULL;
+ struct repsFromTo2 *reps_from = NULL;
+ uint32_t c_reps_from;
+
+ int i_rep;
+
+ struct neighList *neigh_list = NULL;
+ struct neighList *neigh_elem = NULL;
+
+ struct drsuapi_DsReplicaNeighbour *neigh = NULL;
+
+ i = j = 0;
+ neigh_list = NULL;
+
+ /* foreach nc in ncs */
+ for (p_nc_list = nc_list; p_nc_list != NULL; p_nc_list = p_nc_list->next) {
+
+ nc_dn = p_nc_list->dn;
+
+ /* load the nc's repsFromTo blob */
+ status = dsdb_loadreps(samdb, mem_ctx, nc_dn, "repsFrom",
+ &reps_from_blob, &c_reps_from);
+ if (!W_ERROR_IS_OK(status)) {
+ status = WERR_DS_DRA_INTERNAL_ERROR;
+ goto DONE;
+ }
+
+ /* foreach r in nc!repsFrom */
+ for (i_rep = 0; i_rep < c_reps_from; i_rep++) {
+
+ /* put all info on reps_from */
+ if (reps_from_blob[i_rep].version == 1) {
+ status = copy_repsfrom_1_to_2(mem_ctx, &reps_from,
+ &reps_from_blob[i_rep].ctr.ctr1);
+ if (!W_ERROR_IS_OK(status)) {
+ goto DONE;
+ }
+ } else { /* reps_from->version == 2 */
+ reps_from = &reps_from_blob[i_rep].ctr.ctr2;
+ }
+
+ if (GUID_all_zero(&req_src_dsa_guid) ||
+ GUID_compare(&req_src_dsa_guid, &reps_from->source_dsa_obj_guid) == 0)
+ {
+
+ if (i >= base_index) {
+ neigh = talloc_zero(mem_ctx, struct drsuapi_DsReplicaNeighbour);
+ W_ERROR_HAVE_NO_MEMORY(neigh);
+
+ status = fill_neighbor_from_repsFrom(mem_ctx, samdb,
+ nc_dn, neigh,
+ reps_from);
+ if (!W_ERROR_IS_OK(status)) {
+ goto DONE;
+ }
+
+ /* append the neighbor to neigh_list */
+ neigh_elem = talloc_zero(mem_ctx, struct neighList);
+ W_ERROR_HAVE_NO_MEMORY(neigh_elem);
+ neigh_elem->neigh = neigh;
+ DLIST_ADD_END(neigh_list, neigh_elem, struct neighList*);
+
+ j++;
+ }
+
+ i++;
+ }
+ }
+ }
+
+ /* put all neighbours on neigh_list on reply->neighbours->array */
+ reply->neighbours = talloc_zero(mem_ctx, struct drsuapi_DsReplicaNeighbourCtr);
+ W_ERROR_HAVE_NO_MEMORY(reply->neighbours);
+
+ reply->neighbours->count = j;
+ reply->neighbours->reserved = 0;
+ reply->neighbours->array = talloc_array(mem_ctx, struct drsuapi_DsReplicaNeighbour, j);
+ W_ERROR_HAVE_NO_MEMORY(reply->neighbours->array);
+
+ for (k = 0; neigh_list != NULL; neigh_list = neigh_list->next, k++) {
+ reply->neighbours->array[k] = *neigh_list->neigh;
+ }
+
+ /* If everything went fine so far, set the status to OK */
+ status = WERR_OK;
+DONE:
+ return status;
+}
+
+static WERROR get_master_ncs(TALLOC_CTX *mem_ctx, struct ldb_context *samdb,
+ const char *ntds_guid_str, struct ncList **master_nc_list)
+{
+ WERROR status;
+ const char *attrs[] = { "hasMasterNCs", NULL };
+ struct ldb_result *res;
+ struct ncList *nc_list = NULL;
+ struct ncList *nc_list_elem;
+ int ret;
+ int i;
+ char *nc_str;
+
+ ret = ldb_search(samdb, mem_ctx, &res, ldb_get_config_basedn(samdb),
+ LDB_SCOPE_DEFAULT, attrs, "(objectguid=%s)", ntds_guid_str);
+
+ if (ret != LDB_SUCCESS) {
+ DEBUG(0,(__location__ ": Failed objectguid search - %s\n", ldb_errstring(samdb)));
+ status = WERR_INTERNAL_ERROR;
+ goto DONE;
+ }
+
+ if (res->count == 0) {
+ DEBUG(0,(__location__ ": Failed: objectguid=%s not found\n", ntds_guid_str));
+ status = WERR_INTERNAL_ERROR;
+ goto DONE;
+ }
+
+ for (i = 0; i < res->count; i++) {
+
+ struct ldb_message_element *msg_elem = ldb_msg_find_element(
+ res->msgs[i], "hasMasterNCs");
+ int k;
+
+ if (!msg_elem || msg_elem->num_values == 0) {
+ DEBUG(0,(__location__ ": Failed: Attribute hasMasterNCs not found - %s\n",
+ ldb_errstring(samdb)));
+ status = WERR_INTERNAL_ERROR;
+ goto DONE;
+ }
+
+ for (k = 0; k < msg_elem->num_values; k++) {
+ int len = msg_elem->values[k].length;
+
+ /* copy the string on msg_elem->values[k]->data to nc_str */
+ nc_str = talloc_array(mem_ctx, char, len);
+ W_ERROR_HAVE_NO_MEMORY(nc_str);
+ memcpy(nc_str, msg_elem->values[k].data, len);
+ nc_str[len] = '\0';
+
+ nc_list_elem = talloc_zero(mem_ctx, struct ncList);
+ W_ERROR_HAVE_NO_MEMORY(nc_list_elem);
+ nc_list_elem->dn = ldb_dn_new(mem_ctx, samdb, nc_str);
+ W_ERROR_HAVE_NO_MEMORY(nc_list_elem);
+ DLIST_ADD(nc_list, nc_list_elem);
+ }
+
+ }
+
+ *master_nc_list = nc_list;
+ /* If everything went fine so far, set the status to OK */
+ status = WERR_OK;
+DONE:
+ return status;
+}
+
+NTSTATUS kccdrs_replica_get_info(struct irpc_message *msg,
+ struct drsuapi_DsReplicaGetInfo *req)
+{
+ WERROR status;
+
+ struct drsuapi_DsReplicaGetInfoRequest1 *req1;
+ struct drsuapi_DsReplicaGetInfoRequest2 *req2;
+ enum drsuapi_DsReplicaInfoType info_type, *tmp_p_info_type;
+
+ int base_index;
+ union drsuapi_DsReplicaInfo *reply;
+
+ struct GUID req_src_dsa_guid;
+ const char *object_dn = NULL;
+ struct ldb_dn *nc_dn = NULL;
+ struct ncList *nc_list = NULL, *nc_list_elem = NULL;
+
+ struct kccsrv_service *service;
+ struct ldb_context *samdb;
+ TALLOC_CTX *mem_ctx;
+
+ service = talloc_get_type(msg->private_data, struct kccsrv_service);
+ samdb = service->samdb;
+ mem_ctx = talloc_new(msg);
+ NT_STATUS_HAVE_NO_MEMORY(mem_ctx);
+
+ NDR_PRINT_IN_DEBUG(drsuapi_DsReplicaGetInfo, req);
+
+ /* check request version */
+ if (req->in.level != DRSUAPI_DS_REPLICA_GET_INFO &&
+ req->in.level != DRSUAPI_DS_REPLICA_GET_INFO2)
+ {
+ status = WERR_REVISION_MISMATCH;
+ goto DONE;
+ }
+
+ if (req->in.level == DRSUAPI_DS_REPLICA_GET_INFO) {
+ req1 = &req->in.req->req1;
+ base_index = 0;
+ info_type = req1->info_type;
+ object_dn = req1->object_dn;
+ req_src_dsa_guid = req1->guid1;
+
+ } else { /* r->in.level == DRSUAPI_DS_REPLICA_GET_INFO2 */
+ req2 = &req->in.req->req2;
+ if (req2->unknown2 == 0xffffffff) {
+ /* no more data is available */
+ status = WERR_NO_MORE_ITEMS; /* on MS-DRSR it is ERROR_NO_MORE_ITEMS */
+ goto DONE;
+ }
+
+ base_index = req2->unknown2; /* Note: This is dwEnumerationContext on MS-DRSR 4.1.13.1.3 */
+ info_type = req2->info_type;
+ object_dn = req2->object_dn;
+ req_src_dsa_guid = req2->guid1;
+ }
+
+ /* TODO: Perform the necessary access permission checking here according to the infoType requested */
+
+ switch (info_type) {
+ case DRSUAPI_DS_REPLICA_INFO_NEIGHBORS:
+ case DRSUAPI_DS_REPLICA_INFO_CURSORS:
+ case DRSUAPI_DS_REPLICA_INFO_OBJ_METADATA:
+ case DRSUAPI_DS_REPLICA_INFO_KCC_DSA_CONNECT_FAILURES:
+ case DRSUAPI_DS_REPLICA_INFO_KCC_DSA_LINK_FAILURES:
+ case DRSUAPI_DS_REPLICA_INFO_PENDING_OPS:
+ case DRSUAPI_DS_REPLICA_INFO_ATTRIBUTE_VALUE_METADATA:
+ case DRSUAPI_DS_REPLICA_INFO_CURSORS2:
+ case DRSUAPI_DS_REPLICA_INFO_CURSORS3:
+ case DRSUAPI_DS_REPLICA_INFO_OBJ_METADATA2:
+ case DRSUAPI_DS_REPLICA_INFO_ATTRIBUTE_VALUE_METADATA2:
+ case DRSUAPI_DS_REPLICA_INFO_NEIGHBORS02:
+ case DRSUAPI_DS_REPLICA_INFO_CONNECTIONS04:
+ case DRSUAPI_DS_REPLICA_INFO_CURSORS05:
+ case DRSUAPI_DS_REPLICA_INFO_06:
+ break;
+ default:
+ DEBUG(0,(__location__ ": infoType requested is invalid."));
+ status = WERR_INVALID_PARAMETER; /* infoType is invalid */
+ goto DONE;
+ }
+
+ /* allocate the reply and fill in some fields */
+ reply = talloc_zero(mem_ctx, union drsuapi_DsReplicaInfo);
+ NT_STATUS_HAVE_NO_MEMORY(reply);
+ req->out.info = reply;
+ tmp_p_info_type = talloc(mem_ctx, enum drsuapi_DsReplicaInfoType);
+ NT_STATUS_HAVE_NO_MEMORY(tmp_p_info_type);
+ *tmp_p_info_type = info_type;
+ req->out.info_type = tmp_p_info_type;
+
+ /* Based on the infoType requested, retrieve the corresponding information and construct the response message */
+ switch (info_type) {
+
+ case DRSUAPI_DS_REPLICA_INFO_NEIGHBORS:
+ case DRSUAPI_DS_REPLICA_INFO_NEIGHBORS02: /* DS_REPL_INFO_REPSTO */
+ if (object_dn != NULL) { /* ncs := { object_dn } */
+ nc_list = NULL;
+ nc_dn = ldb_dn_new(mem_ctx, samdb, object_dn);
+ nc_list_elem = talloc_zero(mem_ctx, struct ncList);
+ NT_STATUS_HAVE_NO_MEMORY(nc_list_elem);
+ nc_list_elem->dn = nc_dn;
+ DLIST_ADD_END(nc_list, nc_list_elem, struct ncList*);
+
+ } else {
+ /* ncs := getNCs() from ldb database.
+ * getNCs() must return an array containing the DSNames of all NCs hosted by this server.
+ */
+ char *ntds_guid_str = GUID_string(mem_ctx, &service->ntds_guid);
+ NT_STATUS_HAVE_NO_MEMORY(ntds_guid_str);
+ status = get_master_ncs(mem_ctx, samdb, ntds_guid_str, &nc_list);
+ if (!W_ERROR_IS_OK(status)) {
+ goto DONE;
+ }
+ }
+
+ if (info_type == DRSUAPI_DS_REPLICA_INFO_NEIGHBORS) {
+ status = kccdrs_replica_get_info_neighbours(mem_ctx, samdb, req,
+ reply, base_index,
+ req_src_dsa_guid, nc_list);
+
+ } else { /* info_type == DRSUAPI_DS_REPLICA_INFO_NEIGHBORS02 */
+ status = WERR_FOOBAR;
+ goto DONE;
+ }
+
+ break;
+
+ case DRSUAPI_DS_REPLICA_INFO_OBJ_METADATA: /* On MS-DRSR it is DS_REPL_INFO_METADATA_FOR_OBJ */
+ case DRSUAPI_DS_REPLICA_INFO_OBJ_METADATA2: /* On MS-DRSR it is DS_REPL_INFO_METADATA_FOR_OBJ */
+ status = WERR_FOOBAR;
+ goto DONE;
+ break;
+
+ case DRSUAPI_DS_REPLICA_INFO_CURSORS: /* On MS-DRSR it is DS_REPL_INFO_CURSORS_FOR_NC */
+ status = WERR_FOOBAR;
+ goto DONE;
+ break;
+
+ case DRSUAPI_DS_REPLICA_INFO_CURSORS2: /* On MS-DRSR it is DS_REPL_INFO_CURSORS_2_FOR_NC */
+ case DRSUAPI_DS_REPLICA_INFO_CURSORS3: /* On MS-DRSR it is DS_REPL_INFO_CURSORS_3_FOR_NC */
+ status = WERR_FOOBAR;
+ goto DONE;
+ break;
+
+ case DRSUAPI_DS_REPLICA_INFO_CURSORS05: /* On MS-DRSR it is DS_REPL_INFO_UPTODATE_VECTOR_V1 */
+ status = WERR_FOOBAR;
+ goto DONE;
+ break;
+
+ case DRSUAPI_DS_REPLICA_INFO_ATTRIBUTE_VALUE_METADATA: /* On MS-DRSR it is DS_REPL_INFO_METADATA_FOR_ATTR_VALUE */
+ case DRSUAPI_DS_REPLICA_INFO_ATTRIBUTE_VALUE_METADATA2: /* On MS-DRSR it is DS_REPL_INFO_METADATA_2_FOR_ATTR_VALUE */
+ status = WERR_FOOBAR;
+ goto DONE;
+ break;
+
+ case DRSUAPI_DS_REPLICA_INFO_KCC_DSA_CONNECT_FAILURES: /* On MS-DRSR it is DS_REPL_INFO_KCC_DSA_CONNECT_FAILURES */
+ status = WERR_FOOBAR;
+ goto DONE;
+ break;
+
+ case DRSUAPI_DS_REPLICA_INFO_KCC_DSA_LINK_FAILURES: /* On MS-DRSR it is DS_REPL_INFO_KCC_LINK_FAILURES */
+ status = WERR_FOOBAR;
+ goto DONE;
+ break;
+
+ case DRSUAPI_DS_REPLICA_INFO_PENDING_OPS: /* On MS-DRSR it is DS_REPL_INFO_PENDING_OPS */
+ status = WERR_FOOBAR;
+ goto DONE;
+ break;
+
+ case DRSUAPI_DS_REPLICA_INFO_CONNECTIONS04: /* On MS-DRSR it is DS_REPL_INFO_CLIENT_CONTEXTS */
+ status = WERR_FOOBAR;
+ goto DONE;
+ break;
+
+ case DRSUAPI_DS_REPLICA_INFO_06: /* On MS-DRSR it is DS_REPL_INFO_SERVER_OUTGOING_CALLS */
+ status = WERR_FOOBAR;
+ goto DONE;
+ break;
+ }
+DONE:
+ /* put the status on the result field of the reply */
+ req->out.result = status;
+ NDR_PRINT_OUT_DEBUG(drsuapi_DsReplicaGetInfo, req);
+ return NT_STATUS_OK;
+}
git.samba.org / kai / samba-autobuild / .git / commitdiff