/* Unix SMB/CIFS mplementation. DSDB replication service Copyright (C) Stefan Metzmacher 2007 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/repl/drepl_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" static WERROR dreplsrv_refresh_partitions(struct dreplsrv_service *s); 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; int ret; basedn = ldb_dn_new(s, s->samdb, NULL); W_ERROR_HAVE_NO_MEMORY(basedn); ret = ldb_search(s->samdb, basedn, LDB_SCOPE_BASE, "(objectClass=*)", attrs, &r); talloc_free(basedn); if (ret != LDB_SUCCESS) { return WERR_FOOBAR; } else if (r->count != 1) { talloc_free(r); return WERR_FOOBAR; } talloc_steal(s, r); el = ldb_msg_find_element(r->msgs[0], "namingContexts"); if (!el) { return WERR_FOOBAR; } for (i=0; el && i < el->num_values; i++) { const char *v = (const char *)el->values[i].data; struct ldb_dn *pdn; struct dreplsrv_partition *p; pdn = ldb_dn_new(s, s->samdb, v); if (!ldb_dn_validate(pdn)) { return WERR_FOOBAR; } p = talloc_zero(s, struct dreplsrv_partition); W_ERROR_HAVE_NO_MEMORY(p); p->dn = talloc_steal(p, pdn); DLIST_ADD(s->partitions, p); DEBUG(2, ("dreplsrv_partition[%s] loaded\n", v)); } talloc_free(r); 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) { struct dreplsrv_out_connection *cur, *conn = NULL; const char *hostname; if (!rft->other_info) { return WERR_FOOBAR; } if (!rft->other_info->dns_name) { return WERR_FOOBAR; } hostname = rft->other_info->dns_name; for (cur = s->connections; cur; cur = cur->next) { if (strcmp(cur->binding->host, hostname) == 0) { conn = cur; break; } } if (!conn) { NTSTATUS nt_status; char *binding_str; conn = talloc_zero(s, struct dreplsrv_out_connection); W_ERROR_HAVE_NO_MEMORY(conn); conn->service = s; binding_str = talloc_asprintf(conn, "ncacn_ip_tcp:%s[krb5,seal]", hostname); W_ERROR_HAVE_NO_MEMORY(binding_str); nt_status = dcerpc_parse_binding(conn, binding_str, &conn->binding); talloc_free(binding_str); 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)); } else { DEBUG(2,("dreplsrv_out_connection_attach(%s): attach\n", conn->binding->host)); } *_conn = conn; return WERR_OK; } static WERROR dreplsrv_partition_add_source_dsa(struct dreplsrv_service *s, struct dreplsrv_partition *p, const struct ldb_val *val) { WERROR status; NTSTATUS nt_status; struct dreplsrv_partition_source_dsa *source; source = talloc_zero(p, struct dreplsrv_partition_source_dsa); W_ERROR_HAVE_NO_MEMORY(source); nt_status = ndr_pull_struct_blob(val, source, &source->_repsFromBlob, (ndr_pull_flags_fn_t)ndr_pull_repsFromToBlob); if (!NT_STATUS_IS_OK(nt_status)) { return ntstatus_to_werror(nt_status); } /* NDR_PRINT_DEBUG(repsFromToBlob, &source->_repsFromBlob); */ if (source->_repsFromBlob.version != 1) { return WERR_DS_DRA_INTERNAL_ERROR; } source->partition = p; source->repsFrom1 = &source->_repsFromBlob.ctr.ctr1; 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 *); return WERR_OK; } static WERROR dreplsrv_refresh_partition(struct dreplsrv_service *s, struct dreplsrv_partition *p, TALLOC_CTX *mem_ctx) { WERROR status; NTSTATUS nt_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; int ret; static const char *attrs[] = { "objectSid", "objectGUID", "replUpToDateVector", "repsFrom", NULL }; DEBUG(2, ("dreplsrv_refresh_partition(%s)\n", ldb_dn_get_linearized(p->dn))); ret = ldb_search(s->samdb, p->dn, LDB_SCOPE_BASE, "(objectClass=*)", attrs, &r); if (ret != LDB_SUCCESS) { return WERR_FOOBAR; } else if (r->count != 1) { talloc_free(r); return WERR_FOOBAR; } talloc_steal(mem_ctx, r); ZERO_STRUCT(p->nc); p->nc.dn = ldb_dn_alloc_linearized(p, p->dn); W_ERROR_HAVE_NO_MEMORY(p->nc.dn); p->nc.guid = samdb_result_guid(r->msgs[0], "objectGUID"); nc_sid = samdb_result_dom_sid(p, r->msgs[0], "objectSid"); if (nc_sid) { p->nc.sid = *nc_sid; } ouv_value = ldb_msg_find_ldb_val(r->msgs[0], "replUpToDateVector"); if (ouv_value) { nt_status = ndr_pull_struct_blob(ouv_value, mem_ctx, &ouv, (ndr_pull_flags_fn_t)ndr_pull_replUpToDateVectorBlob); if (!NT_STATUS_IS_OK(nt_status)) { return ntstatus_to_werror(nt_status); } /* NDR_PRINT_DEBUG(replUpToDateVectorBlob, &ouv); */ if (ouv.version != 2) { return WERR_DS_DRA_INTERNAL_ERROR; } p->uptodatevector.count = ouv.ctr.ctr2.count; p->uptodatevector.reserved = ouv.ctr.ctr2.reserved; p->uptodatevector.cursors = talloc_steal(p, ouv.ctr.ctr2.cursors); } /* * 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]); W_ERROR_NOT_OK_RETURN(status); } } talloc_free(r); return WERR_OK; } static 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); W_ERROR_NOT_OK_RETURN(status); } return WERR_OK; }