#include "auth/auth.h"
#include "smbd/service.h"
#include "lib/events/events.h"
-#include "lib/messaging/irpc.h"
#include "dsdb/repl/drepl_service.h"
-#include "lib/ldb/include/ldb_errors.h"
-#include "lib/util/dlinklist.h"
+#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 "libcli/security/security.h"
#include "param/param.h"
-
-static WERROR dreplsrv_refresh_partitions(struct dreplsrv_service *s);
+#include "dsdb/common/util.h"
WERROR dreplsrv_load_partitions(struct dreplsrv_service *s)
{
WERROR status;
- struct ldb_dn *basedn;
- struct ldb_result *r;
- struct ldb_message_element *el;
- static const char *attrs[] = { "namingContexts", NULL };
- uint32_t i;
+ static const char *attrs[] = { "hasMasterNCs", "hasPartialReplicaNCs", NULL };
+ unsigned int i;
int ret;
+ TALLOC_CTX *tmp_ctx;
+ struct ldb_result *res;
+ struct ldb_message_element *el;
+ struct ldb_dn *ntds_dn;
- basedn = ldb_dn_new(s, s->samdb, NULL);
- W_ERROR_HAVE_NO_MEMORY(basedn);
+ tmp_ctx = talloc_new(s);
+ W_ERROR_HAVE_NO_MEMORY(tmp_ctx);
- ret = ldb_search(s->samdb, s, &r, basedn, LDB_SCOPE_BASE, attrs,
- "(objectClass=*)");
- talloc_free(basedn);
+ ntds_dn = samdb_ntds_settings_dn(s->samdb);
+ if (!ntds_dn) {
+ DEBUG(1,(__location__ ": Unable to find ntds_dn: %s\n", ldb_errstring(s->samdb)));
+ talloc_free(tmp_ctx);
+ return WERR_DS_DRA_INTERNAL_ERROR;
+ }
+
+ ret = dsdb_search_dn(s->samdb, tmp_ctx, &res, ntds_dn, attrs, DSDB_SEARCH_SHOW_EXTENDED_DN);
if (ret != LDB_SUCCESS) {
- return WERR_FOOBAR;
- } else if (r->count != 1) {
- talloc_free(r);
- return WERR_FOOBAR;
+ DEBUG(1,("Searching for hasMasterNCs in NTDS DN failed: %s\n", ldb_errstring(s->samdb)));
+ talloc_free(tmp_ctx);
+ return WERR_DS_DRA_INTERNAL_ERROR;
}
- el = ldb_msg_find_element(r->msgs[0], "namingContexts");
+ el = ldb_msg_find_element(res->msgs[0], "hasMasterNCs");
if (!el) {
- return WERR_FOOBAR;
+ DEBUG(1,("Finding hasMasterNCs element in root_res failed: %s\n",
+ ldb_errstring(s->samdb)));
+ talloc_free(tmp_ctx);
+ return WERR_DS_DRA_INTERNAL_ERROR;
}
- for (i=0; el && i < el->num_values; i++) {
- const char *v = (const char *)el->values[i].data;
+ for (i=0; i<el->num_values; i++) {
struct ldb_dn *pdn;
struct dreplsrv_partition *p;
- pdn = ldb_dn_new(s, s->samdb, v);
+ pdn = ldb_dn_from_ldb_val(tmp_ctx, s->samdb, &el->values[i]);
+ if (pdn == NULL) {
+ talloc_free(tmp_ctx);
+ return WERR_DS_DRA_INTERNAL_ERROR;
+ }
if (!ldb_dn_validate(pdn)) {
- return WERR_FOOBAR;
+ return WERR_DS_DRA_INTERNAL_ERROR;
}
p = talloc_zero(s, struct dreplsrv_partition);
W_ERROR_HAVE_NO_MEMORY(p);
p->dn = talloc_steal(p, pdn);
+ p->service = s;
DLIST_ADD(s->partitions, p);
- DEBUG(2, ("dreplsrv_partition[%s] loaded\n", v));
+ DEBUG(2, ("dreplsrv_partition[%s] loaded\n", ldb_dn_get_linearized(p->dn)));
}
- talloc_free(r);
+ el = ldb_msg_find_element(res->msgs[0], "hasPartialReplicaNCs");
+
+ for (i=0; el && i<el->num_values; i++) {
+ struct ldb_dn *pdn;
+ struct dreplsrv_partition *p;
+
+ pdn = ldb_dn_from_ldb_val(tmp_ctx, s->samdb, &el->values[i]);
+ if (pdn == NULL) {
+ talloc_free(tmp_ctx);
+ return WERR_DS_DRA_INTERNAL_ERROR;
+ }
+ if (!ldb_dn_validate(pdn)) {
+ return WERR_DS_DRA_INTERNAL_ERROR;
+ }
+
+ p = talloc_zero(s, struct dreplsrv_partition);
+ W_ERROR_HAVE_NO_MEMORY(p);
+
+ p->dn = talloc_steal(p, pdn);
+ p->partial_replica = true;
+ p->service = s;
+
+ DLIST_ADD(s->partitions, p);
+
+ DEBUG(2, ("dreplsrv_partition[%s] loaded (partial replica)\n", ldb_dn_get_linearized(p->dn)));
+ }
+
+ talloc_free(tmp_ctx);
status = dreplsrv_refresh_partitions(s);
W_ERROR_NOT_OK_RETURN(status);
return WERR_OK;
}
-static WERROR dreplsrv_out_connection_attach(struct dreplsrv_service *s,
- const struct repsFromTo1 *rft,
- struct dreplsrv_out_connection **_conn)
+/*
+ work out the principal to use for DRS replication connections
+ */
+NTSTATUS dreplsrv_get_target_principal(struct dreplsrv_service *s,
+ TALLOC_CTX *mem_ctx,
+ const struct repsFromTo1 *rft,
+ const char **target_principal)
+{
+ TALLOC_CTX *tmp_ctx;
+ struct ldb_result *res;
+ const char *attrs[] = { "dNSHostName", NULL };
+ int ret;
+ const char *hostname;
+ struct ldb_dn *dn;
+ struct ldb_dn *forest_dn;
+
+ *target_principal = NULL;
+
+ tmp_ctx = talloc_new(mem_ctx);
+
+ /* we need to find their hostname */
+ ret = dsdb_find_dn_by_guid(s->samdb, tmp_ctx, &rft->source_dsa_obj_guid, &dn);
+ if (ret != LDB_SUCCESS) {
+ talloc_free(tmp_ctx);
+ /* its OK for their NTDSDSA DN not to be in our database */
+ return NT_STATUS_OK;
+ }
+
+ /* strip off the NTDS Settings */
+ if (!ldb_dn_remove_child_components(dn, 1)) {
+ talloc_free(tmp_ctx);
+ return NT_STATUS_OK;
+ }
+
+ ret = dsdb_search_dn(s->samdb, tmp_ctx, &res, dn, attrs, 0);
+ if (ret != LDB_SUCCESS) {
+ talloc_free(tmp_ctx);
+ /* its OK for their account DN not to be in our database */
+ return NT_STATUS_OK;
+ }
+
+ hostname = ldb_msg_find_attr_as_string(res->msgs[0], "dNSHostName", NULL);
+ if (hostname == NULL) {
+ talloc_free(tmp_ctx);
+ /* its OK to not have a dnshostname */
+ return NT_STATUS_OK;
+ }
+
+ /* All DCs have the GC/hostname/realm name, but if some of the
+ * preconditions are not satisfied, then we will fall back to
+ * the
+ * E3514235-4B06-11D1-AB04-00C04FC2DCD2/${NTDSGUID}/${DNSDOMAIN}
+ * name. This means that if a AD server has a dnsHostName set
+ * on it's record, it must also have GC/hostname/realm
+ * servicePrincipalName */
+
+ forest_dn = ldb_get_root_basedn(s->samdb);
+ if (forest_dn == NULL) {
+ talloc_free(tmp_ctx);
+ return NT_STATUS_OK;
+ }
+
+ *target_principal = talloc_asprintf(mem_ctx, "GC/%s/%s",
+ hostname,
+ samdb_dn_to_dns_domain(tmp_ctx, forest_dn));
+ talloc_free(tmp_ctx);
+ return NT_STATUS_OK;
+}
+
+
+WERROR dreplsrv_out_connection_attach(struct dreplsrv_service *s,
+ const struct repsFromTo1 *rft,
+ struct dreplsrv_out_connection **_conn)
{
struct dreplsrv_out_connection *cur, *conn = NULL;
const char *hostname;
return ntstatus_to_werror(nt_status);
}
+ /* use the GC principal for DRS replication */
+ nt_status = dreplsrv_get_target_principal(s, conn->binding,
+ rft, &conn->binding->target_principal);
+ if (!NT_STATUS_IS_OK(nt_status)) {
+ return ntstatus_to_werror(nt_status);
+ }
+
DLIST_ADD_END(s->connections, conn, struct dreplsrv_out_connection *);
- DEBUG(2,("dreplsrv_out_connection_attach(%s): create\n", conn->binding->host));
+ DEBUG(4,("dreplsrv_out_connection_attach(%s): create\n", conn->binding->host));
} else {
- DEBUG(2,("dreplsrv_out_connection_attach(%s): attach\n", conn->binding->host));
+ DEBUG(4,("dreplsrv_out_connection_attach(%s): attach\n", conn->binding->host));
}
*_conn = conn;
return WERR_OK;
}
+/*
+ find an existing source dsa in a list
+ */
+static struct dreplsrv_partition_source_dsa *dreplsrv_find_source_dsa(struct dreplsrv_partition_source_dsa *list,
+ struct GUID *guid)
+{
+ struct dreplsrv_partition_source_dsa *s;
+ for (s=list; s; s=s->next) {
+ if (GUID_compare(&s->repsFrom1->source_dsa_obj_guid, guid) == 0) {
+ return s;
+ }
+ }
+ return NULL;
+}
+
+
+
static WERROR dreplsrv_partition_add_source_dsa(struct dreplsrv_service *s,
struct dreplsrv_partition *p,
+ struct dreplsrv_partition_source_dsa **listp,
+ struct dreplsrv_partition_source_dsa *check_list,
const struct ldb_val *val)
{
WERROR status;
enum ndr_err_code ndr_err;
- struct dreplsrv_partition_source_dsa *source;
+ struct dreplsrv_partition_source_dsa *source, *s2;
source = talloc_zero(p, struct dreplsrv_partition_source_dsa);
W_ERROR_HAVE_NO_MEMORY(source);
ndr_err = ndr_pull_struct_blob(val, source,
- lp_iconv_convenience(s->task->lp_ctx), &source->_repsFromBlob,
+ &source->_repsFromBlob,
(ndr_pull_flags_fn_t)ndr_pull_repsFromToBlob);
if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
NTSTATUS nt_status = ndr_map_error2ntstatus(ndr_err);
+ talloc_free(source);
return ntstatus_to_werror(nt_status);
}
/* NDR_PRINT_DEBUG(repsFromToBlob, &source->_repsFromBlob); */
if (source->_repsFromBlob.version != 1) {
+ talloc_free(source);
return WERR_DS_DRA_INTERNAL_ERROR;
}
status = dreplsrv_out_connection_attach(s, source->repsFrom1, &source->conn);
W_ERROR_NOT_OK_RETURN(status);
- DLIST_ADD_END(p->sources, source, struct dreplsrv_partition_source_dsa *);
+ if (check_list &&
+ dreplsrv_find_source_dsa(check_list, &source->repsFrom1->source_dsa_obj_guid)) {
+ /* its in the check list, don't add it again */
+ talloc_free(source);
+ return WERR_OK;
+ }
+
+ /* re-use an existing source if found */
+ for (s2=*listp; s2; s2=s2->next) {
+ if (GUID_compare(&s2->repsFrom1->source_dsa_obj_guid,
+ &source->repsFrom1->source_dsa_obj_guid) == 0) {
+ talloc_free(s2->repsFrom1->other_info);
+ *s2->repsFrom1 = *source->repsFrom1;
+ talloc_steal(s2, s2->repsFrom1->other_info);
+ talloc_free(source);
+ return WERR_OK;
+ }
+ }
+
+ DLIST_ADD_END(*listp, source, struct dreplsrv_partition_source_dsa *);
+ return WERR_OK;
+}
+
+WERROR dreplsrv_partition_find_for_nc(struct dreplsrv_service *s,
+ const struct GUID *nc_guid,
+ const struct dom_sid *nc_sid,
+ const char *nc_dn_str,
+ struct dreplsrv_partition **_p)
+{
+ struct dreplsrv_partition *p;
+ bool valid_sid, valid_guid;
+ struct dom_sid null_sid;
+ ZERO_STRUCT(null_sid);
+
+ SMB_ASSERT(_p);
+
+ valid_sid = nc_sid && !dom_sid_equal(&null_sid, nc_sid);
+ valid_guid = nc_guid && !GUID_all_zero(nc_guid);
+
+ if (!valid_sid && !valid_guid && !nc_dn_str) {
+ return WERR_DS_DRA_INVALID_PARAMETER;
+ }
+
+ for (p = s->partitions; p; p = p->next) {
+ if ((valid_guid && GUID_equal(&p->nc.guid, nc_guid))
+ || strequal(p->nc.dn, nc_dn_str)
+ || (valid_sid && dom_sid_equal(&p->nc.sid, nc_sid)))
+ {
+ *_p = p;
+ return WERR_OK;
+ }
+ }
+
+ return WERR_DS_DRA_BAD_NC;
+}
+
+WERROR dreplsrv_partition_source_dsa_by_guid(struct dreplsrv_partition *p,
+ const struct GUID *dsa_guid,
+ struct dreplsrv_partition_source_dsa **_dsa)
+{
+ struct dreplsrv_partition_source_dsa *dsa;
+
+ SMB_ASSERT(dsa_guid != NULL);
+ SMB_ASSERT(!GUID_all_zero(dsa_guid));
+ SMB_ASSERT(_dsa);
+
+ for (dsa = p->sources; dsa; dsa = dsa->next) {
+ if (GUID_equal(dsa_guid, &dsa->repsFrom1->source_dsa_obj_guid)) {
+ *_dsa = dsa;
+ return WERR_OK;
+ }
+ }
+
+ return WERR_DS_DRA_NO_REPLICA;
+}
+
+WERROR dreplsrv_partition_source_dsa_by_dns(const struct dreplsrv_partition *p,
+ const char *dsa_dns,
+ struct dreplsrv_partition_source_dsa **_dsa)
+{
+ struct dreplsrv_partition_source_dsa *dsa;
+
+ SMB_ASSERT(dsa_dns != NULL);
+ SMB_ASSERT(_dsa);
+
+ for (dsa = p->sources; dsa; dsa = dsa->next) {
+ if (strequal(dsa_dns, dsa->repsFrom1->other_info->dns_name)) {
+ *_dsa = dsa;
+ return WERR_OK;
+ }
+ }
+
+ return WERR_DS_DRA_NO_REPLICA;
+}
+
+
+/*
+ create a temporary dsa structure for a replication. This is needed
+ for the initial replication of a new partition, such as when a new
+ domain NC is created and we are a global catalog server
+ */
+WERROR dreplsrv_partition_source_dsa_temporary(struct dreplsrv_partition *p,
+ TALLOC_CTX *mem_ctx,
+ const struct GUID *dsa_guid,
+ struct dreplsrv_partition_source_dsa **_dsa)
+{
+ struct dreplsrv_partition_source_dsa *dsa;
+ WERROR werr;
+
+ dsa = talloc_zero(mem_ctx, struct dreplsrv_partition_source_dsa);
+ W_ERROR_HAVE_NO_MEMORY(dsa);
+
+ dsa->partition = p;
+ dsa->repsFrom1 = &dsa->_repsFromBlob.ctr.ctr1;
+ dsa->repsFrom1->replica_flags = 0;
+ dsa->repsFrom1->source_dsa_obj_guid = *dsa_guid;
+
+ dsa->repsFrom1->other_info = talloc_zero(dsa, struct repsFromTo1OtherInfo);
+ W_ERROR_HAVE_NO_MEMORY(dsa->repsFrom1->other_info);
+
+ dsa->repsFrom1->other_info->dns_name = samdb_ntds_msdcs_dns_name(p->service->samdb,
+ dsa->repsFrom1->other_info, dsa_guid);
+ W_ERROR_HAVE_NO_MEMORY(dsa->repsFrom1->other_info->dns_name);
+
+ werr = dreplsrv_out_connection_attach(p->service, dsa->repsFrom1, &dsa->conn);
+ if (!W_ERROR_IS_OK(werr)) {
+ DEBUG(0,(__location__ ": Failed to attach connection to %s\n",
+ ldb_dn_get_linearized(p->dn)));
+ talloc_free(dsa);
+ return werr;
+ }
+
+ *_dsa = dsa;
+
return WERR_OK;
}
+
static WERROR dreplsrv_refresh_partition(struct dreplsrv_service *s,
- struct dreplsrv_partition *p,
- TALLOC_CTX *mem_ctx)
+ struct dreplsrv_partition *p)
{
WERROR status;
- const struct ldb_val *ouv_value;
- struct replUpToDateVectorBlob ouv;
struct dom_sid *nc_sid;
struct ldb_message_element *orf_el = NULL;
struct ldb_result *r;
- uint32_t i;
+ unsigned int i;
int ret;
+ TALLOC_CTX *mem_ctx = talloc_new(p);
static const char *attrs[] = {
"objectSid",
"objectGUID",
- "replUpToDateVector",
"repsFrom",
+ "repsTo",
NULL
};
- DEBUG(2, ("dreplsrv_refresh_partition(%s)\n",
+ DEBUG(4, ("dreplsrv_refresh_partition(%s)\n",
ldb_dn_get_linearized(p->dn)));
ret = ldb_search(s->samdb, mem_ctx, &r, p->dn, LDB_SCOPE_BASE, attrs,
"(objectClass=*)");
if (ret != LDB_SUCCESS) {
- return WERR_FOOBAR;
- } else if (r->count != 1) {
- talloc_free(r);
+ talloc_free(mem_ctx);
return WERR_FOOBAR;
}
-
+
+ talloc_free(discard_const(p->nc.dn));
ZERO_STRUCT(p->nc);
p->nc.dn = ldb_dn_alloc_linearized(p, p->dn);
W_ERROR_HAVE_NO_MEMORY(p->nc.dn);
nc_sid = samdb_result_dom_sid(p, r->msgs[0], "objectSid");
if (nc_sid) {
p->nc.sid = *nc_sid;
+ talloc_free(nc_sid);
}
- ouv_value = ldb_msg_find_ldb_val(r->msgs[0], "replUpToDateVector");
- if (ouv_value) {
- enum ndr_err_code ndr_err;
- ndr_err = ndr_pull_struct_blob(ouv_value, mem_ctx,
- lp_iconv_convenience(s->task->lp_ctx), &ouv,
- (ndr_pull_flags_fn_t)ndr_pull_replUpToDateVectorBlob);
- if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
- NTSTATUS nt_status = ndr_map_error2ntstatus(ndr_err);
- return ntstatus_to_werror(nt_status);
- }
- /* NDR_PRINT_DEBUG(replUpToDateVectorBlob, &ouv); */
- if (ouv.version != 2) {
- return WERR_DS_DRA_INTERNAL_ERROR;
- }
+ talloc_free(p->uptodatevector.cursors);
+ talloc_free(p->uptodatevector_ex.cursors);
+ ZERO_STRUCT(p->uptodatevector);
+ ZERO_STRUCT(p->uptodatevector_ex);
- p->uptodatevector.count = ouv.ctr.ctr2.count;
- p->uptodatevector.reserved = ouv.ctr.ctr2.reserved;
- p->uptodatevector.cursors = talloc_steal(p, ouv.ctr.ctr2.cursors);
+ ret = dsdb_load_udv_v2(s->samdb, p->dn, p, &p->uptodatevector.cursors, &p->uptodatevector.count);
+ if (ret != LDB_SUCCESS) {
+ DEBUG(4,(__location__ ": no UDV available for %s\n", ldb_dn_get_linearized(p->dn)));
}
- /*
- * TODO: add our own uptodatevector cursor
- */
-
-
orf_el = ldb_msg_find_element(r->msgs[0], "repsFrom");
if (orf_el) {
for (i=0; i < orf_el->num_values; i++) {
- status = dreplsrv_partition_add_source_dsa(s, p, &orf_el->values[i]);
+ status = dreplsrv_partition_add_source_dsa(s, p, &p->sources,
+ NULL, &orf_el->values[i]);
+ W_ERROR_NOT_OK_RETURN(status);
+ }
+ }
+
+ orf_el = ldb_msg_find_element(r->msgs[0], "repsTo");
+ if (orf_el) {
+ for (i=0; i < orf_el->num_values; i++) {
+ status = dreplsrv_partition_add_source_dsa(s, p, &p->notifies,
+ p->sources, &orf_el->values[i]);
W_ERROR_NOT_OK_RETURN(status);
}
}
- talloc_free(r);
+ talloc_free(mem_ctx);
return WERR_OK;
}
-static WERROR dreplsrv_refresh_partitions(struct dreplsrv_service *s)
+WERROR dreplsrv_refresh_partitions(struct dreplsrv_service *s)
{
WERROR status;
struct dreplsrv_partition *p;
for (p = s->partitions; p; p = p->next) {
- status = dreplsrv_refresh_partition(s, p, p);
+ status = dreplsrv_refresh_partition(s, p);
W_ERROR_NOT_OK_RETURN(status);
}
git.samba.org / ira / wip.git / blobdiff