/*
Unix SMB/CIFS implementation.
- implement the DRSUpdateRefs call
+ implement the DSGetNCChanges call
Copyright (C) Anatoliy Atanasov 2009
Copyright (C) Andrew Tridgell 2009
#include "dsdb/samdb/samdb.h"
#include "param/param.h"
#include "librpc/gen_ndr/ndr_drsblobs.h"
+#include "librpc/gen_ndr/ndr_drsuapi.h"
+#include "librpc/gen_ndr/ndr_security.h"
+#include "libcli/security/security.h"
+#include "libcli/security/session.h"
#include "rpc_server/drsuapi/dcesrv_drsuapi.h"
#include "rpc_server/dcerpc_server_proto.h"
#include "../libcli/drsuapi/drsuapi.h"
-#include "libcli/security/security.h"
+#include "lib/util/binsearch.h"
+#include "lib/util/tsort.h"
+#include "auth/session.h"
+#include "dsdb/common/util.h"
+
+/*
+ build a DsReplicaObjectIdentifier from a ldb msg
+ */
+static struct drsuapi_DsReplicaObjectIdentifier *get_object_identifier(TALLOC_CTX *mem_ctx,
+ struct ldb_message *msg)
+{
+ struct drsuapi_DsReplicaObjectIdentifier *identifier;
+ struct dom_sid *sid;
+
+ identifier = talloc(mem_ctx, struct drsuapi_DsReplicaObjectIdentifier);
+ if (identifier == NULL) {
+ return NULL;
+ }
+
+ identifier->dn = ldb_dn_alloc_linearized(identifier, msg->dn);
+ identifier->guid = samdb_result_guid(msg, "objectGUID");
+
+ sid = samdb_result_dom_sid(identifier, msg, "objectSid");
+ if (sid) {
+ identifier->sid = *sid;
+ } else {
+ ZERO_STRUCT(identifier->sid);
+ }
+ return identifier;
+}
+
+static int udv_compare(const struct GUID *guid1, struct GUID guid2)
+{
+ return GUID_compare(guid1, &guid2);
+}
+
+/*
+ see if we can filter an attribute using the uptodateness_vector
+ */
+static bool udv_filter(const struct drsuapi_DsReplicaCursorCtrEx *udv,
+ const struct GUID *originating_invocation_id,
+ uint64_t originating_usn)
+{
+ const struct drsuapi_DsReplicaCursor *c;
+ if (udv == NULL) return false;
+ BINARY_ARRAY_SEARCH(udv->cursors, udv->count, source_dsa_invocation_id,
+ originating_invocation_id, udv_compare, c);
+ if (c && originating_usn <= c->highest_usn) {
+ return true;
+ }
+ return false;
+
+}
+
+static int attid_cmp(enum drsuapi_DsAttributeId a1, enum drsuapi_DsAttributeId a2)
+{
+ if (a1 == a2) return 0;
+ return ((uint32_t)a1) > ((uint32_t)a2) ? 1 : -1;
+}
+
+/*
+ check if an attribute is in a partial_attribute_set
+ */
+static bool check_partial_attribute_set(const struct dsdb_attribute *sa,
+ struct drsuapi_DsPartialAttributeSet *pas)
+{
+ enum drsuapi_DsAttributeId *result;
+ BINARY_ARRAY_SEARCH_V(pas->attids, pas->num_attids, (enum drsuapi_DsAttributeId)sa->attributeID_id,
+ attid_cmp, result);
+ return result != NULL;
+}
+
/*
drsuapi_DsGetNCChanges for one object
struct ldb_message *msg,
struct ldb_context *sam_ctx,
struct ldb_dn *ncRoot_dn,
+ bool is_schema_nc,
struct dsdb_schema *schema,
DATA_BLOB *session_key,
uint64_t highest_usn,
- uint32_t replica_flags)
+ uint32_t replica_flags,
+ struct drsuapi_DsPartialAttributeSet *partial_attribute_set,
+ struct drsuapi_DsReplicaCursorCtrEx *uptodateness_vector,
+ enum drsuapi_DsExtendedOperation extended_op)
{
const struct ldb_val *md_value;
- int i, n;
- struct ldb_dn *obj_dn;
+ uint32_t i, n;
struct replPropertyMetaDataBlob md;
- struct dom_sid *sid;
uint32_t rid = 0;
enum ndr_err_code ndr_err;
uint32_t *attids;
const char *rdn;
const struct dsdb_attribute *rdn_sa;
+ unsigned int instanceType;
+ struct dsdb_syntax_ctx syntax_ctx;
+
+ /* make dsdb sytanx context for conversions */
+ dsdb_syntax_ctx_init(&syntax_ctx, sam_ctx, schema);
+ syntax_ctx.is_schema_nc = is_schema_nc;
- if (ldb_dn_compare(ncRoot_dn, msg->dn) == 0) {
+ instanceType = ldb_msg_find_attr_as_uint(msg, "instanceType", 0);
+ if (instanceType & INSTANCE_TYPE_IS_NC_HEAD) {
obj->is_nc_prefix = true;
obj->parent_object_guid = NULL;
} else {
return WERR_OK;
}
- ndr_err = ndr_pull_struct_blob(md_value, obj,
- lp_iconv_convenience(ldb_get_opaque(sam_ctx, "loadparm")), &md,
+ if (instanceType & INSTANCE_TYPE_UNINSTANT) {
+ /* don't send uninstantiated objects */
+ return WERR_OK;
+ }
+
+ ndr_err = ndr_pull_struct_blob(md_value, obj, &md,
(ndr_pull_flags_fn_t)ndr_pull_replPropertyMetaDataBlob);
if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
return WERR_DS_DRA_INTERNAL_ERROR;
return WERR_DS_DRA_INTERNAL_ERROR;
}
- obj->meta_data_ctr = talloc(obj, struct drsuapi_DsReplicaMetaDataCtr);
- attids = talloc_array(obj, uint32_t, md.ctr.ctr1.count);
+ obj->meta_data_ctr = talloc(obj, struct drsuapi_DsReplicaMetaDataCtr);
+ attids = talloc_array(obj, uint32_t, md.ctr.ctr1.count);
+
+ obj->object.identifier = get_object_identifier(obj, msg);
+ if (obj->object.identifier == NULL) {
+ return WERR_NOMEM;
+ }
+ dom_sid_split_rid(NULL, &obj->object.identifier->sid, NULL, &rid);
+
+ obj->meta_data_ctr->meta_data = talloc_array(obj, struct drsuapi_DsReplicaMetaData, md.ctr.ctr1.count);
+ for (n=i=0; i<md.ctr.ctr1.count; i++) {
+ const struct dsdb_attribute *sa;
+ bool force_attribute = false;
+
+ /* if the attribute has not changed, and it is not the
+ instanceType then don't include it */
+ if (md.ctr.ctr1.array[i].local_usn < highest_usn &&
+ extended_op != DRSUAPI_EXOP_REPL_SECRET &&
+ md.ctr.ctr1.array[i].attid != DRSUAPI_ATTID_instanceType) continue;
+
+ /* don't include the rDN */
+ if (md.ctr.ctr1.array[i].attid == rdn_sa->attributeID_id) continue;
+
+ sa = dsdb_attribute_by_attributeID_id(schema, md.ctr.ctr1.array[i].attid);
+ if (!sa) {
+ DEBUG(0,(__location__ ": Failed to find attribute in schema for attrid %u mentioned in replPropertyMetaData of %s\n",
+ (unsigned int)md.ctr.ctr1.array[i].attid,
+ ldb_dn_get_linearized(msg->dn)));
+ return WERR_DS_DRA_INTERNAL_ERROR;
+ }
+
+ if (sa->linkID) {
+ struct ldb_message_element *el;
+ el = ldb_msg_find_element(msg, sa->lDAPDisplayName);
+ if (el && el->num_values && dsdb_dn_is_upgraded_link_val(&el->values[0])) {
+ /* don't send upgraded links inline */
+ continue;
+ }
+ }
+
+ if (extended_op == DRSUAPI_EXOP_REPL_SECRET &&
+ !dsdb_attr_in_rodc_fas(sa)) {
+ force_attribute = true;
+ DEBUG(4,("Forcing attribute %s in %s\n",
+ sa->lDAPDisplayName, ldb_dn_get_linearized(msg->dn)));
+ }
+
+ /* filter by uptodateness_vector */
+ if (md.ctr.ctr1.array[i].attid != DRSUAPI_ATTID_instanceType &&
+ !force_attribute &&
+ udv_filter(uptodateness_vector,
+ &md.ctr.ctr1.array[i].originating_invocation_id,
+ md.ctr.ctr1.array[i].originating_usn)) {
+ continue;
+ }
+
+ /* filter by partial_attribute_set */
+ if (partial_attribute_set && !check_partial_attribute_set(sa, partial_attribute_set)) {
+ continue;
+ }
+
+ obj->meta_data_ctr->meta_data[n].originating_change_time = md.ctr.ctr1.array[i].originating_change_time;
+ obj->meta_data_ctr->meta_data[n].version = md.ctr.ctr1.array[i].version;
+ obj->meta_data_ctr->meta_data[n].originating_invocation_id = md.ctr.ctr1.array[i].originating_invocation_id;
+ obj->meta_data_ctr->meta_data[n].originating_usn = md.ctr.ctr1.array[i].originating_usn;
+ attids[n] = md.ctr.ctr1.array[i].attid;
+ n++;
+ }
+
+ /* ignore it if its an empty change. Note that renames always
+ * change the 'name' attribute, so they won't be ignored by
+ * this */
+ if (n == 0 ||
+ (n == 1 && attids[0] == DRSUAPI_ATTID_instanceType)) {
+ talloc_free(obj->meta_data_ctr);
+ obj->meta_data_ctr = NULL;
+ return WERR_OK;
+ }
+
+ obj->meta_data_ctr->count = n;
+
+ obj->object.flags = DRSUAPI_DS_REPLICA_OBJECT_FROM_MASTER;
+ obj->object.attribute_ctr.num_attributes = obj->meta_data_ctr->count;
+ obj->object.attribute_ctr.attributes = talloc_array(obj, struct drsuapi_DsReplicaAttribute,
+ obj->object.attribute_ctr.num_attributes);
+
+ /*
+ * Note that the meta_data array and the attributes array must
+ * be the same size and in the same order
+ */
+ for (i=0; i<obj->object.attribute_ctr.num_attributes; i++) {
+ struct ldb_message_element *el;
+ WERROR werr;
+ const struct dsdb_attribute *sa;
+
+ sa = dsdb_attribute_by_attributeID_id(schema, attids[i]);
+ if (!sa) {
+ DEBUG(0,("Unable to find attributeID %u in schema\n", attids[i]));
+ return WERR_DS_DRA_INTERNAL_ERROR;
+ }
+
+ el = ldb_msg_find_element(msg, sa->lDAPDisplayName);
+ if (el == NULL) {
+ /* this happens for attributes that have been removed */
+ DEBUG(5,("No element '%s' for attributeID %u in message\n",
+ sa->lDAPDisplayName, attids[i]));
+ ZERO_STRUCT(obj->object.attribute_ctr.attributes[i]);
+ obj->object.attribute_ctr.attributes[i].attid =
+ dsdb_attribute_get_attid(sa, syntax_ctx.is_schema_nc);
+ } else {
+ werr = sa->syntax->ldb_to_drsuapi(&syntax_ctx, sa, el, obj,
+ &obj->object.attribute_ctr.attributes[i]);
+ if (!W_ERROR_IS_OK(werr)) {
+ DEBUG(0,("Unable to convert %s to DRS object - %s\n",
+ sa->lDAPDisplayName, win_errstr(werr)));
+ return werr;
+ }
+ /* if DRSUAPI_DRS_SPECIAL_SECRET_PROCESSING is set
+ * check if attribute is secret and send a null value
+ */
+ if (replica_flags & DRSUAPI_DRS_SPECIAL_SECRET_PROCESSING) {
+ drsuapi_process_secret_attribute(&obj->object.attribute_ctr.attributes[i],
+ &obj->meta_data_ctr->meta_data[i]);
+ }
+ /* some attributes needs to be encrypted
+ before being sent */
+ werr = drsuapi_encrypt_attribute(obj, session_key, rid,
+ &obj->object.attribute_ctr.attributes[i]);
+ if (!W_ERROR_IS_OK(werr)) {
+ DEBUG(0,("Unable to encrypt %s in DRS object - %s\n",
+ sa->lDAPDisplayName, win_errstr(werr)));
+ return werr;
+ }
+ }
+ }
+
+ return WERR_OK;
+}
+
+
+/*
+ add one linked attribute from an object to the list of linked
+ attributes in a getncchanges request
+ */
+static WERROR get_nc_changes_add_la(TALLOC_CTX *mem_ctx,
+ struct ldb_context *sam_ctx,
+ const struct dsdb_schema *schema,
+ const struct dsdb_attribute *sa,
+ struct ldb_message *msg,
+ struct dsdb_dn *dsdb_dn,
+ struct drsuapi_DsReplicaLinkedAttribute **la_list,
+ uint32_t *la_count)
+{
+ struct drsuapi_DsReplicaLinkedAttribute *la;
+ bool active;
+ NTSTATUS status;
+ WERROR werr;
+
+ (*la_list) = talloc_realloc(mem_ctx, *la_list, struct drsuapi_DsReplicaLinkedAttribute, (*la_count)+1);
+ W_ERROR_HAVE_NO_MEMORY(*la_list);
+
+ la = &(*la_list)[*la_count];
+
+ la->identifier = get_object_identifier(*la_list, msg);
+ W_ERROR_HAVE_NO_MEMORY(la->identifier);
+
+ active = (dsdb_dn_rmd_flags(dsdb_dn->dn) & DSDB_RMD_FLAG_DELETED) == 0;
+
+ if (!active) {
+ /* We have to check that the inactive link still point to an existing object */
+ struct GUID guid;
+ struct ldb_dn *tdn;
+ int ret;
+ const char *v;
+
+ v = ldb_msg_find_attr_as_string(msg, "isDeleted", "false");
+ if (strncmp(v, "TRUE", 4) == 0) {
+ /*
+ * Note: we skip the transmition of the deleted link even if the other part used to
+ * know about it because when we transmit the deletion of the object, the link will
+ * be deleted too due to deletion of object where link points and Windows do so.
+ */
+ if (dsdb_functional_level(sam_ctx) >= DS_DOMAIN_FUNCTION_2008_R2) {
+ v = ldb_msg_find_attr_as_string(msg, "isRecycled", "true");
+ /*
+ * On Windows 2008R2 isRecycled is always present even if FL or DL are < FL 2K8R2
+ * if it join an existing domain with deleted objets, it firsts impose to have a
+ * schema with the is-Recycled object and for all deleted objects it adds the isRecycled
+ * either during initial replication or after the getNCChanges.
+ * Behavior of samba has been changed to always have this attribute if it's present in the schema.
+ *
+ * So if FL <2K8R2 isRecycled might be here or not but we don't care, it's meaning less.
+ * If FL >=2K8R2 we are sure that this attribute will be here.
+ * For this kind of forest level we do not return the link if the object is recycled
+ * (isRecycled = true).
+ */
+ if (strncmp(v, "TRUE", 4) == 0) {
+ DEBUG(2, (" object %s is recycled, not returning linked attribute !\n",
+ ldb_dn_get_linearized(msg->dn)));
+ return WERR_OK;
+ }
+ } else {
+ return WERR_OK;
+ }
+ }
+ status = dsdb_get_extended_dn_guid(dsdb_dn->dn, &guid, "GUID");
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0,(__location__ " Unable to extract GUID in linked attribute '%s' in '%s'\n",
+ sa->lDAPDisplayName, ldb_dn_get_linearized(msg->dn)));
+ return ntstatus_to_werror(status);
+ }
+ ret = dsdb_find_dn_by_guid(sam_ctx, mem_ctx, &guid, &tdn);
+ if (ret == LDB_ERR_NO_SUCH_OBJECT) {
+ DEBUG(2, (" Search of guid %s returned 0 objects, skipping it !\n",
+ GUID_string(mem_ctx, &guid)));
+ return WERR_OK;
+ } else if (ret != LDB_SUCCESS) {
+ DEBUG(0, (__location__ " Search of guid %s failed with error code %d\n",
+ GUID_string(mem_ctx, &guid),
+ ret));
+ return WERR_OK;
+ }
+ }
+ la->attid = sa->attributeID_id;
+ la->flags = active?DRSUAPI_DS_LINKED_ATTRIBUTE_FLAG_ACTIVE:0;
+
+ status = dsdb_get_extended_dn_uint32(dsdb_dn->dn, &la->meta_data.version, "RMD_VERSION");
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0,(__location__ " No RMD_VERSION in linked attribute '%s' in '%s'\n",
+ sa->lDAPDisplayName, ldb_dn_get_linearized(msg->dn)));
+ return ntstatus_to_werror(status);
+ }
+ status = dsdb_get_extended_dn_nttime(dsdb_dn->dn, &la->meta_data.originating_change_time, "RMD_CHANGETIME");
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0,(__location__ " No RMD_CHANGETIME in linked attribute '%s' in '%s'\n",
+ sa->lDAPDisplayName, ldb_dn_get_linearized(msg->dn)));
+ return ntstatus_to_werror(status);
+ }
+ status = dsdb_get_extended_dn_guid(dsdb_dn->dn, &la->meta_data.originating_invocation_id, "RMD_INVOCID");
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0,(__location__ " No RMD_INVOCID in linked attribute '%s' in '%s'\n",
+ sa->lDAPDisplayName, ldb_dn_get_linearized(msg->dn)));
+ return ntstatus_to_werror(status);
+ }
+ status = dsdb_get_extended_dn_uint64(dsdb_dn->dn, &la->meta_data.originating_usn, "RMD_ORIGINATING_USN");
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0,(__location__ " No RMD_ORIGINATING_USN in linked attribute '%s' in '%s'\n",
+ sa->lDAPDisplayName, ldb_dn_get_linearized(msg->dn)));
+ return ntstatus_to_werror(status);
+ }
+
+ status = dsdb_get_extended_dn_nttime(dsdb_dn->dn, &la->originating_add_time, "RMD_ADDTIME");
+ if (!NT_STATUS_IS_OK(status)) {
+ /* this is possible for upgraded links */
+ la->originating_add_time = la->meta_data.originating_change_time;
+ }
+
+ werr = dsdb_dn_la_to_blob(sam_ctx, sa, schema, *la_list, dsdb_dn, &la->value.blob);
+ W_ERROR_NOT_OK_RETURN(werr);
+
+ (*la_count)++;
+ return WERR_OK;
+}
+
+
+/*
+ add linked attributes from an object to the list of linked
+ attributes in a getncchanges request
+ */
+static WERROR get_nc_changes_add_links(struct ldb_context *sam_ctx,
+ TALLOC_CTX *mem_ctx,
+ struct ldb_dn *ncRoot_dn,
+ struct dsdb_schema *schema,
+ uint64_t highest_usn,
+ uint32_t replica_flags,
+ struct ldb_message *msg,
+ struct drsuapi_DsReplicaLinkedAttribute **la_list,
+ uint32_t *la_count,
+ struct drsuapi_DsReplicaCursorCtrEx *uptodateness_vector)
+{
+ unsigned int i;
+ TALLOC_CTX *tmp_ctx = talloc_new(mem_ctx);
+ uint64_t uSNChanged = ldb_msg_find_attr_as_int(msg, "uSNChanged", -1);
+
+ for (i=0; i<msg->num_elements; i++) {
+ struct ldb_message_element *el = &msg->elements[i];
+ const struct dsdb_attribute *sa;
+ unsigned int j;
+
+ sa = dsdb_attribute_by_lDAPDisplayName(schema, el->name);
+
+ if (!sa || sa->linkID == 0 || (sa->linkID & 1)) {
+ /* we only want forward links */
+ continue;
+ }
+
+ if (el->num_values && !dsdb_dn_is_upgraded_link_val(&el->values[0])) {
+ /* its an old style link, it will have been
+ * sent in the main replication data */
+ continue;
+ }
+
+ for (j=0; j<el->num_values; j++) {
+ struct dsdb_dn *dsdb_dn;
+ uint64_t local_usn;
+ NTSTATUS status;
+ WERROR werr;
+
+ dsdb_dn = dsdb_dn_parse(tmp_ctx, sam_ctx, &el->values[j], sa->syntax->ldap_oid);
+ if (dsdb_dn == NULL) {
+ DEBUG(1,(__location__ ": Failed to parse DN for %s in %s\n",
+ el->name, ldb_dn_get_linearized(msg->dn)));
+ talloc_free(tmp_ctx);
+ return WERR_DS_DRA_INTERNAL_ERROR;
+ }
+
+ status = dsdb_get_extended_dn_uint64(dsdb_dn->dn, &local_usn, "RMD_LOCAL_USN");
+ if (!NT_STATUS_IS_OK(status)) {
+ /* this can happen for attributes
+ given to us with old style meta
+ data */
+ continue;
+ }
+
+ if (local_usn > uSNChanged) {
+ DEBUG(1,(__location__ ": uSNChanged less than RMD_LOCAL_USN for %s on %s\n",
+ el->name, ldb_dn_get_linearized(msg->dn)));
+ talloc_free(tmp_ctx);
+ return WERR_DS_DRA_INTERNAL_ERROR;
+ }
+
+ if (local_usn < highest_usn) {
+ continue;
+ }
+
+ werr = get_nc_changes_add_la(mem_ctx, sam_ctx, schema, sa, msg,
+ dsdb_dn, la_list, la_count);
+ if (!W_ERROR_IS_OK(werr)) {
+ talloc_free(tmp_ctx);
+ return werr;
+ }
+ }
+ }
+
+ talloc_free(tmp_ctx);
+ return WERR_OK;
+}
+
+/*
+ fill in the cursors return based on the replUpToDateVector for the ncRoot_dn
+ */
+static WERROR get_nc_changes_udv(struct ldb_context *sam_ctx,
+ struct ldb_dn *ncRoot_dn,
+ struct drsuapi_DsReplicaCursor2CtrEx *udv)
+{
+ int ret;
+
+ udv->version = 2;
+ udv->reserved1 = 0;
+ udv->reserved2 = 0;
+
+ ret = dsdb_load_udv_v2(sam_ctx, ncRoot_dn, udv, &udv->cursors, &udv->count);
+ if (ret != LDB_SUCCESS) {
+ DEBUG(0,(__location__ ": Failed to load UDV for %s - %s\n",
+ ldb_dn_get_linearized(ncRoot_dn), ldb_errstring(sam_ctx)));
+ return WERR_DS_DRA_INTERNAL_ERROR;
+ }
+
+ return WERR_OK;
+}
+
+
+/* comparison function for linked attributes - see CompareLinks() in
+ * MS-DRSR section 4.1.10.5.17 */
+static int linked_attribute_compare(const struct drsuapi_DsReplicaLinkedAttribute *la1,
+ const struct drsuapi_DsReplicaLinkedAttribute *la2,
+ struct ldb_context *sam_ctx)
+{
+ int c;
+ WERROR werr;
+ TALLOC_CTX *tmp_ctx;
+ const struct dsdb_schema *schema;
+ const struct dsdb_attribute *schema_attrib;
+ struct dsdb_dn *dn1, *dn2;
+ struct GUID guid1, guid2;
+ NTSTATUS status;
+
+ c = GUID_compare(&la1->identifier->guid,
+ &la2->identifier->guid);
+ if (c != 0) return c;
+
+ if (la1->attid != la2->attid) {
+ return la1->attid < la2->attid? -1:1;
+ }
+
+ if ((la1->flags & DRSUAPI_DS_LINKED_ATTRIBUTE_FLAG_ACTIVE) !=
+ (la2->flags & DRSUAPI_DS_LINKED_ATTRIBUTE_FLAG_ACTIVE)) {
+ return (la1->flags & DRSUAPI_DS_LINKED_ATTRIBUTE_FLAG_ACTIVE)? 1:-1;
+ }
+
+ /* we need to get the target GUIDs to compare */
+ tmp_ctx = talloc_new(sam_ctx);
+
+ schema = dsdb_get_schema(sam_ctx, tmp_ctx);
+ schema_attrib = dsdb_attribute_by_attributeID_id(schema, la1->attid);
+
+ werr = dsdb_dn_la_from_blob(sam_ctx, schema_attrib, schema, tmp_ctx, la1->value.blob, &dn1);
+ if (!W_ERROR_IS_OK(werr)) {
+ DEBUG(0,(__location__ ": Bad la1 blob in sort\n"));
+ talloc_free(tmp_ctx);
+ return 0;
+ }
+
+ werr = dsdb_dn_la_from_blob(sam_ctx, schema_attrib, schema, tmp_ctx, la2->value.blob, &dn2);
+ if (!W_ERROR_IS_OK(werr)) {
+ DEBUG(0,(__location__ ": Bad la2 blob in sort\n"));
+ talloc_free(tmp_ctx);
+ return 0;
+ }
+
+ status = dsdb_get_extended_dn_guid(dn1->dn, &guid1, "GUID");
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0,(__location__ ": Bad la1 guid in sort\n"));
+ talloc_free(tmp_ctx);
+ return 0;
+ }
+ status = dsdb_get_extended_dn_guid(dn2->dn, &guid2, "GUID");
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0,(__location__ ": Bad la2 guid in sort\n"));
+ talloc_free(tmp_ctx);
+ return 0;
+ }
+
+ talloc_free(tmp_ctx);
+
+ return GUID_compare(&guid1, &guid2);
+}
+
+
+/*
+ sort the objects we send by tree order
+ */
+static int site_res_cmp_parent_order(struct ldb_message **m1, struct ldb_message **m2)
+{
+ return ldb_dn_compare((*m2)->dn, (*m1)->dn);
+}
+
+/*
+ sort the objects we send first by uSNChanged
+ */
+static int site_res_cmp_usn_order(struct ldb_message **m1, struct ldb_message **m2)
+{
+ unsigned usnchanged1, usnchanged2;
+ unsigned cn1, cn2;
+ cn1 = ldb_dn_get_comp_num((*m1)->dn);
+ cn2 = ldb_dn_get_comp_num((*m2)->dn);
+ if (cn1 != cn2) {
+ return cn1 > cn2 ? 1 : -1;
+ }
+ usnchanged1 = ldb_msg_find_attr_as_uint(*m1, "uSNChanged", 0);
+ usnchanged2 = ldb_msg_find_attr_as_uint(*m2, "uSNChanged", 0);
+ if (usnchanged1 == usnchanged2) {
+ return 0;
+ }
+ return usnchanged1 > usnchanged2 ? 1 : -1;
+}
+
+
+/*
+ handle a DRSUAPI_EXOP_FSMO_RID_ALLOC call
+ */
+static WERROR getncchanges_rid_alloc(struct drsuapi_bind_state *b_state,
+ TALLOC_CTX *mem_ctx,
+ struct drsuapi_DsGetNCChangesRequest10 *req10,
+ struct drsuapi_DsGetNCChangesCtr6 *ctr6)
+{
+ struct ldb_dn *rid_manager_dn, *fsmo_role_dn, *req_dn;
+ int ret;
+ struct ldb_context *ldb = b_state->sam_ctx;
+ struct ldb_result *ext_res;
+ struct ldb_dn *base_dn;
+ struct dsdb_fsmo_extended_op *exop;
+
+ /*
+ steps:
+ - verify that the DN being asked for is the RID Manager DN
+ - verify that we are the RID Manager
+ */
+
+ /* work out who is the RID Manager */
+ ret = samdb_rid_manager_dn(ldb, mem_ctx, &rid_manager_dn);
+ if (ret != LDB_SUCCESS) {
+ DEBUG(0, (__location__ ": Failed to find RID Manager object - %s\n", ldb_errstring(ldb)));
+ return WERR_DS_DRA_INTERNAL_ERROR;
+ }
+
+ req_dn = drs_ObjectIdentifier_to_dn(mem_ctx, ldb, req10->naming_context);
+ if (!ldb_dn_validate(req_dn) ||
+ ldb_dn_compare(req_dn, rid_manager_dn) != 0) {
+ /* that isn't the RID Manager DN */
+ DEBUG(0,(__location__ ": RID Alloc request for wrong DN %s\n",
+ drs_ObjectIdentifier_to_string(mem_ctx, req10->naming_context)));
+ ctr6->extended_ret = DRSUAPI_EXOP_ERR_MISMATCH;
+ return WERR_OK;
+ }
+
+ /* find the DN of the RID Manager */
+ ret = samdb_reference_dn(ldb, mem_ctx, rid_manager_dn, "fSMORoleOwner", &fsmo_role_dn);
+ if (ret != LDB_SUCCESS) {
+ DEBUG(0,(__location__ ": Failed to find fSMORoleOwner in RID Manager object - %s\n",
+ ldb_errstring(ldb)));
+ ctr6->extended_ret = DRSUAPI_EXOP_ERR_FSMO_NOT_OWNER;
+ return WERR_DS_DRA_INTERNAL_ERROR;
+ }
+
+ if (ldb_dn_compare(samdb_ntds_settings_dn(ldb), fsmo_role_dn) != 0) {
+ /* we're not the RID Manager - go away */
+ DEBUG(0,(__location__ ": RID Alloc request when not RID Manager\n"));
+ ctr6->extended_ret = DRSUAPI_EXOP_ERR_FSMO_NOT_OWNER;
+ return WERR_OK;
+ }
+
+ exop = talloc(mem_ctx, struct dsdb_fsmo_extended_op);
+ W_ERROR_HAVE_NO_MEMORY(exop);
+
+ exop->fsmo_info = req10->fsmo_info;
+ exop->destination_dsa_guid = req10->destination_dsa_guid;
+
+ ret = ldb_transaction_start(ldb);
+ if (ret != LDB_SUCCESS) {
+ DEBUG(0,(__location__ ": Failed transaction start - %s\n",
+ ldb_errstring(ldb)));
+ return WERR_DS_DRA_INTERNAL_ERROR;
+ }
+
+ /*
+ * FIXME (kim): this is a temp hack to return just few object,
+ * but not the whole domain NC.
+ * We should remove this hack and implement a 'scope'
+ * building function to return just the set of object
+ * documented for DRSUAPI_EXOP_FSMO_RID_ALLOC extended_op
+ */
+ ldb_sequence_number(ldb, LDB_SEQ_HIGHEST_SEQ, &req10->highwatermark.highest_usn);
+
+ ret = ldb_extended(ldb, DSDB_EXTENDED_ALLOCATE_RID_POOL, exop, &ext_res);
+ if (ret != LDB_SUCCESS) {
+ DEBUG(0,(__location__ ": Failed extended allocation RID pool operation - %s\n",
+ ldb_errstring(ldb)));
+ ldb_transaction_cancel(ldb);
+ return WERR_DS_DRA_INTERNAL_ERROR;
+ }
+
+ ret = ldb_transaction_commit(ldb);
+ if (ret != LDB_SUCCESS) {
+ DEBUG(0,(__location__ ": Failed transaction commit - %s\n",
+ ldb_errstring(ldb)));
+ return WERR_DS_DRA_INTERNAL_ERROR;
+ }
+
+ talloc_free(ext_res);
+
+ base_dn = ldb_get_default_basedn(ldb);
+
+ DEBUG(2,("Allocated RID pool for server %s\n",
+ GUID_string(mem_ctx, &req10->destination_dsa_guid)));
+
+ ctr6->extended_ret = DRSUAPI_EXOP_ERR_SUCCESS;
+
+ return WERR_OK;
+}
+
+/*
+ return an array of SIDs from a ldb_message given an attribute name
+ assumes the SIDs are in extended DN format
+ */
+static WERROR samdb_result_sid_array_dn(struct ldb_context *sam_ctx,
+ struct ldb_message *msg,
+ TALLOC_CTX *mem_ctx,
+ const char *attr,
+ const struct dom_sid ***sids)
+{
+ struct ldb_message_element *el;
+ unsigned int i;
+
+ el = ldb_msg_find_element(msg, attr);
+ if (!el) {
+ *sids = NULL;
+ return WERR_OK;
+ }
+
+ (*sids) = talloc_array(mem_ctx, const struct dom_sid *, el->num_values + 1);
+ W_ERROR_HAVE_NO_MEMORY(*sids);
+
+ for (i=0; i<el->num_values; i++) {
+ struct ldb_dn *dn = ldb_dn_from_ldb_val(mem_ctx, sam_ctx, &el->values[i]);
+ NTSTATUS status;
+ struct dom_sid *sid;
+
+ sid = talloc(*sids, struct dom_sid);
+ W_ERROR_HAVE_NO_MEMORY(sid);
+ status = dsdb_get_extended_dn_sid(dn, sid, "SID");
+ if (!NT_STATUS_IS_OK(status)) {
+ return WERR_INTERNAL_DB_CORRUPTION;
+ }
+ (*sids)[i] = sid;
+ }
+ (*sids)[i] = NULL;
+
+ return WERR_OK;
+}
+
+
+/*
+ return an array of SIDs from a ldb_message given an attribute name
+ assumes the SIDs are in NDR form
+ */
+static WERROR samdb_result_sid_array_ndr(struct ldb_context *sam_ctx,
+ struct ldb_message *msg,
+ TALLOC_CTX *mem_ctx,
+ const char *attr,
+ const struct dom_sid ***sids)
+{
+ struct ldb_message_element *el;
+ unsigned int i;
+
+ el = ldb_msg_find_element(msg, attr);
+ if (!el) {
+ *sids = NULL;
+ return WERR_OK;
+ }
+
+ (*sids) = talloc_array(mem_ctx, const struct dom_sid *, el->num_values + 1);
+ W_ERROR_HAVE_NO_MEMORY(*sids);
+
+ for (i=0; i<el->num_values; i++) {
+ enum ndr_err_code ndr_err;
+ struct dom_sid *sid;
+
+ sid = talloc(*sids, struct dom_sid);
+ W_ERROR_HAVE_NO_MEMORY(sid);
+
+ ndr_err = ndr_pull_struct_blob(&el->values[i], sid, sid,
+ (ndr_pull_flags_fn_t)ndr_pull_dom_sid);
+ if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
+ return WERR_INTERNAL_DB_CORRUPTION;
+ }
+ (*sids)[i] = sid;
+ }
+ (*sids)[i] = NULL;
+
+ return WERR_OK;
+}
+
+/*
+ see if any SIDs in list1 are in list2
+ */
+static bool sid_list_match(const struct dom_sid **list1, const struct dom_sid **list2)
+{
+ unsigned int i, j;
+ /* do we ever have enough SIDs here to worry about O(n^2) ? */
+ for (i=0; list1[i]; i++) {
+ for (j=0; list2[j]; j++) {
+ if (dom_sid_equal(list1[i], list2[j])) {
+ return true;
+ }
+ }
+ }
+ return false;
+}
+
+/*
+ handle a DRSUAPI_EXOP_REPL_SECRET call
+ */
+static WERROR getncchanges_repl_secret(struct drsuapi_bind_state *b_state,
+ TALLOC_CTX *mem_ctx,
+ struct drsuapi_DsGetNCChangesRequest10 *req10,
+ struct dom_sid *user_sid,
+ struct drsuapi_DsGetNCChangesCtr6 *ctr6)
+{
+ struct drsuapi_DsReplicaObjectIdentifier *ncRoot = req10->naming_context;
+ struct ldb_dn *obj_dn, *rodc_dn, *krbtgt_link_dn;
+ int ret;
+ const char *rodc_attrs[] = { "msDS-KrbTgtLink", "msDS-NeverRevealGroup", "msDS-RevealOnDemandGroup", NULL };
+ const char *obj_attrs[] = { "tokenGroups", "objectSid", "UserAccountControl", "msDS-KrbTgtLinkBL", NULL };
+ struct ldb_result *rodc_res, *obj_res;
+ const struct dom_sid **never_reveal_sids, **reveal_sids, **token_sids;
+ WERROR werr;
+
+ DEBUG(3,(__location__ ": DRSUAPI_EXOP_REPL_SECRET extended op on %s\n",
+ drs_ObjectIdentifier_to_string(mem_ctx, ncRoot)));
+
+ /*
+ * we need to work out if we will allow this RODC to
+ * replicate the secrets for this object
+ *
+ * see 4.1.10.5.14 GetRevealSecretsPolicyForUser for details
+ * of this function
+ */
+
+ if (b_state->sam_ctx_system == NULL) {
+ /* this operation needs system level access */
+ ctr6->extended_ret = DRSUAPI_EXOP_ERR_ACCESS_DENIED;
+ return WERR_DS_DRA_SOURCE_DISABLED;
+ }
+
+ obj_dn = drs_ObjectIdentifier_to_dn(mem_ctx, b_state->sam_ctx_system, ncRoot);
+ if (!ldb_dn_validate(obj_dn)) goto failed;
+
+ rodc_dn = ldb_dn_new_fmt(mem_ctx, b_state->sam_ctx_system, "<SID=%s>",
+ dom_sid_string(mem_ctx, user_sid));
+ if (!ldb_dn_validate(rodc_dn)) goto failed;
+
+ /* do the two searches we need */
+ ret = dsdb_search_dn(b_state->sam_ctx_system, mem_ctx, &rodc_res, rodc_dn, rodc_attrs,
+ DSDB_SEARCH_SHOW_EXTENDED_DN);
+ if (ret != LDB_SUCCESS || rodc_res->count != 1) goto failed;
+
+ ret = dsdb_search_dn(b_state->sam_ctx_system, mem_ctx, &obj_res, obj_dn, obj_attrs, 0);
+ if (ret != LDB_SUCCESS || obj_res->count != 1) goto failed;
+
+ /* if the object SID is equal to the user_sid, allow */
+ if (dom_sid_equal(user_sid,
+ samdb_result_dom_sid(mem_ctx, obj_res->msgs[0], "objectSid"))) {
+ goto allowed;
+ }
+
+ /* an RODC is allowed to get its own krbtgt account secrets */
+ krbtgt_link_dn = samdb_result_dn(b_state->sam_ctx_system, mem_ctx,
+ rodc_res->msgs[0], "msDS-KrbTgtLink", NULL);
+ if (krbtgt_link_dn != NULL &&
+ ldb_dn_compare(obj_dn, krbtgt_link_dn) == 0) {
+ goto allowed;
+ }
+
+ /* but it isn't allowed to get anyone elses krbtgt secrets */
+ if (samdb_result_dn(b_state->sam_ctx_system, mem_ctx,
+ obj_res->msgs[0], "msDS-KrbTgtLinkBL", NULL)) {
+ goto denied;
+ }
+
+ if (ldb_msg_find_attr_as_uint(obj_res->msgs[0],
+ "userAccountControl", 0) &
+ UF_INTERDOMAIN_TRUST_ACCOUNT) {
+ goto denied;
+ }
+
+ werr = samdb_result_sid_array_dn(b_state->sam_ctx_system, rodc_res->msgs[0],
+ mem_ctx, "msDS-NeverRevealGroup", &never_reveal_sids);
+ if (!W_ERROR_IS_OK(werr)) {
+ goto denied;
+ }
+
+ werr = samdb_result_sid_array_dn(b_state->sam_ctx_system, rodc_res->msgs[0],
+ mem_ctx, "msDS-RevealOnDemandGroup", &reveal_sids);
+ if (!W_ERROR_IS_OK(werr)) {
+ goto denied;
+ }
+
+ werr = samdb_result_sid_array_ndr(b_state->sam_ctx_system, obj_res->msgs[0],
+ mem_ctx, "tokenGroups", &token_sids);
+ if (!W_ERROR_IS_OK(werr) || token_sids==NULL) {
+ goto denied;
+ }
+
+ if (never_reveal_sids &&
+ sid_list_match(token_sids, never_reveal_sids)) {
+ goto denied;
+ }
+
+ if (reveal_sids &&
+ sid_list_match(token_sids, reveal_sids)) {
+ goto allowed;
+ }
+
+ /* default deny */
+denied:
+ DEBUG(2,(__location__ ": Denied RODC secret replication for %s by RODC %s\n",
+ ldb_dn_get_linearized(obj_dn), ldb_dn_get_linearized(rodc_res->msgs[0]->dn)));
+ ctr6->extended_ret = DRSUAPI_EXOP_ERR_NONE;
+ return WERR_DS_DRA_ACCESS_DENIED;
+
+allowed:
+ DEBUG(2,(__location__ ": Allowed RODC secret replication for %s by RODC %s\n",
+ ldb_dn_get_linearized(obj_dn), ldb_dn_get_linearized(rodc_res->msgs[0]->dn)));
+ ctr6->extended_ret = DRSUAPI_EXOP_ERR_SUCCESS;
+ req10->highwatermark.highest_usn = 0;
+ return WERR_OK;
+
+failed:
+ DEBUG(2,(__location__ ": Failed RODC secret replication for %s by RODC %s\n",
+ ldb_dn_get_linearized(obj_dn), dom_sid_string(mem_ctx, user_sid)));
+ ctr6->extended_ret = DRSUAPI_EXOP_ERR_NONE;
+ return WERR_DS_DRA_BAD_DN;
+}
+
+
+/*
+ handle a DRSUAPI_EXOP_REPL_OBJ call
+ */
+static WERROR getncchanges_repl_obj(struct drsuapi_bind_state *b_state,
+ TALLOC_CTX *mem_ctx,
+ struct drsuapi_DsGetNCChangesRequest10 *req10,
+ struct dom_sid *user_sid,
+ struct drsuapi_DsGetNCChangesCtr6 *ctr6)
+{
+ struct drsuapi_DsReplicaObjectIdentifier *ncRoot = req10->naming_context;
+
+ DEBUG(3,(__location__ ": DRSUAPI_EXOP_REPL_OBJ extended op on %s\n",
+ drs_ObjectIdentifier_to_string(mem_ctx, ncRoot)));
+
+ ctr6->extended_ret = DRSUAPI_EXOP_ERR_SUCCESS;
+ req10->highwatermark.highest_usn = 0;
+ return WERR_OK;
+}
+
+
+/*
+ handle DRSUAPI_EXOP_FSMO_REQ_ROLE,
+ DRSUAPI_EXOP_FSMO_RID_REQ_ROLE,
+ and DRSUAPI_EXOP_FSMO_REQ_PDC calls
+ */
+static WERROR getncchanges_change_master(struct drsuapi_bind_state *b_state,
+ TALLOC_CTX *mem_ctx,
+ struct drsuapi_DsGetNCChangesRequest10 *req10,
+ struct drsuapi_DsGetNCChangesCtr6 *ctr6)
+{
+ struct ldb_dn *fsmo_role_dn, *req_dn, *ntds_dn;
+ int ret;
+ unsigned int i;
+ struct ldb_context *ldb = b_state->sam_ctx;
+ struct ldb_message *msg;
+
+ /*
+ steps:
+ - verify that the client dn exists
+ - verify that we are the current master
+ */
+
+ req_dn = drs_ObjectIdentifier_to_dn(mem_ctx, ldb, req10->naming_context);
+ if (!ldb_dn_validate(req_dn)) {
+ /* that is not a valid dn */
+ DEBUG(0,(__location__ ": FSMO role transfer request for invalid DN %s\n",
+ drs_ObjectIdentifier_to_string(mem_ctx, req10->naming_context)));
+ ctr6->extended_ret = DRSUAPI_EXOP_ERR_MISMATCH;
+ return WERR_OK;
+ }
+
+ /* retrieve the current role owner */
+ ret = samdb_reference_dn(ldb, mem_ctx, req_dn, "fSMORoleOwner", &fsmo_role_dn);
+ if (ret != LDB_SUCCESS) {
+ DEBUG(0,(__location__ ": Failed to find fSMORoleOwner in context - %s\n",
+ ldb_errstring(ldb)));
+ ctr6->extended_ret = DRSUAPI_EXOP_ERR_FSMO_NOT_OWNER;
+ return WERR_DS_DRA_INTERNAL_ERROR;
+ }
+
+ if (ldb_dn_compare(samdb_ntds_settings_dn(ldb), fsmo_role_dn) != 0) {
+ /* we're not the current owner - go away */
+ DEBUG(0,(__location__ ": FSMO transfer request when not owner\n"));
+ ctr6->extended_ret = DRSUAPI_EXOP_ERR_FSMO_NOT_OWNER;
+ return WERR_OK;
+ }
+
+ /* change the current master */
+ msg = ldb_msg_new(ldb);
+ W_ERROR_HAVE_NO_MEMORY(msg);
+ msg->dn = drs_ObjectIdentifier_to_dn(msg, ldb, req10->naming_context);
+ W_ERROR_HAVE_NO_MEMORY(msg->dn);
+
+ /* TODO: make sure ntds_dn is a valid nTDSDSA object */
+ ret = dsdb_find_dn_by_guid(ldb, msg, &req10->destination_dsa_guid, &ntds_dn);
+ if (ret != LDB_SUCCESS) {
+ DEBUG(0, (__location__ ": Unable to find NTDS object for guid %s - %s\n",
+ GUID_string(mem_ctx, &req10->destination_dsa_guid), ldb_errstring(ldb)));
+ talloc_free(msg);
+ ctr6->extended_ret = DRSUAPI_EXOP_ERR_UNKNOWN_CALLER;
+ return WERR_OK;
+ }
+
+ ret = ldb_msg_add_string(msg, "fSMORoleOwner", ldb_dn_get_linearized(ntds_dn));
+ if (ret != 0) {
+ talloc_free(msg);
+ return WERR_DS_DRA_INTERNAL_ERROR;
+ }
+
+ for (i=0;i<msg->num_elements;i++) {
+ msg->elements[i].flags = LDB_FLAG_MOD_REPLACE;
+ }
+
+ ret = ldb_transaction_start(ldb);
+ if (ret != LDB_SUCCESS) {
+ DEBUG(0,(__location__ ": Failed transaction start - %s\n",
+ ldb_errstring(ldb)));
+ return WERR_DS_DRA_INTERNAL_ERROR;
+ }
+
+ ret = ldb_modify(ldb, msg);
+ if (ret != LDB_SUCCESS) {
+ DEBUG(0,(__location__ ": Failed to change current owner - %s\n",
+ ldb_errstring(ldb)));
+ ldb_transaction_cancel(ldb);
+ return WERR_DS_DRA_INTERNAL_ERROR;
+ }
+
+ ret = ldb_transaction_commit(ldb);
+ if (ret != LDB_SUCCESS) {
+ DEBUG(0,(__location__ ": Failed transaction commit - %s\n",
+ ldb_errstring(ldb)));
+ return WERR_DS_DRA_INTERNAL_ERROR;
+ }
+
+ ctr6->extended_ret = DRSUAPI_EXOP_ERR_SUCCESS;
- obj->object.identifier = talloc(obj, struct drsuapi_DsReplicaObjectIdentifier);
- obj_dn = ldb_msg_find_attr_as_dn(sam_ctx, obj, msg, "distinguishedName");
- obj->object.identifier->dn = ldb_dn_get_linearized(obj_dn);
- obj->object.identifier->guid = samdb_result_guid(msg, "objectGUID");
- sid = samdb_result_dom_sid(obj, msg, "objectSid");
- if (sid) {
- dom_sid_split_rid(NULL, sid, NULL, &rid);
- obj->object.identifier->sid = *sid;
- } else {
- ZERO_STRUCT(obj->object.identifier->sid);
- }
-
- obj->meta_data_ctr->meta_data = talloc_array(obj, struct drsuapi_DsReplicaMetaData, md.ctr.ctr1.count);
- for (n=i=0; i<md.ctr.ctr1.count; i++) {
- /* if the attribute has not changed, and it is not the
- instanceType then don't include it */
- if (md.ctr.ctr1.array[i].local_usn < highest_usn &&
- md.ctr.ctr1.array[i].attid != DRSUAPI_ATTRIBUTE_instanceType) continue;
+ return WERR_OK;
+}
- /* don't include the rDN */
- if (md.ctr.ctr1.array[i].attid == rdn_sa->attributeID_id) continue;
+/* state of a partially completed getncchanges call */
+struct drsuapi_getncchanges_state {
+ struct GUID *guids;
+ uint32_t num_records;
+ uint32_t num_processed;
+ struct ldb_dn *ncRoot_dn;
+ bool is_schema_nc;
+ uint64_t min_usn;
+ uint64_t highest_usn;
+ struct ldb_dn *last_dn;
+ struct drsuapi_DsReplicaLinkedAttribute *la_list;
+ uint32_t la_count;
+ bool la_sorted;
+ uint32_t la_idx;
+ struct drsuapi_DsReplicaCursorCtrEx *uptodateness_vector;
+};
- obj->meta_data_ctr->meta_data[n].originating_change_time = md.ctr.ctr1.array[i].originating_change_time;
- obj->meta_data_ctr->meta_data[n].version = md.ctr.ctr1.array[i].version;
- obj->meta_data_ctr->meta_data[n].originating_invocation_id = md.ctr.ctr1.array[i].originating_invocation_id;
- obj->meta_data_ctr->meta_data[n].originating_usn = md.ctr.ctr1.array[i].originating_usn;
- attids[n] = md.ctr.ctr1.array[i].attid;
- n++;
+/*
+ see if this getncchanges request includes a request to reveal secret information
+ */
+static WERROR dcesrv_drsuapi_is_reveal_secrets_request(struct drsuapi_bind_state *b_state,
+ struct drsuapi_DsGetNCChangesRequest10 *req10,
+ bool *is_secret_request)
+{
+ enum drsuapi_DsExtendedOperation exop;
+ uint32_t i;
+ struct dsdb_schema *schema;
+
+ *is_secret_request = true;
+
+ exop = req10->extended_op;
+
+ switch (exop) {
+ case DRSUAPI_EXOP_FSMO_REQ_ROLE:
+ case DRSUAPI_EXOP_FSMO_RID_ALLOC:
+ case DRSUAPI_EXOP_FSMO_RID_REQ_ROLE:
+ case DRSUAPI_EXOP_FSMO_REQ_PDC:
+ case DRSUAPI_EXOP_FSMO_ABANDON_ROLE:
+ /* FSMO exops can reveal secrets */
+ *is_secret_request = true;
+ return WERR_OK;
+ case DRSUAPI_EXOP_REPL_SECRET:
+ case DRSUAPI_EXOP_REPL_OBJ:
+ case DRSUAPI_EXOP_NONE:
+ break;
}
- /*
- note that if n==0 we still need to send the change, as it
- could be a rename, which changes the uSNChanged, but not any
- of the replicated attributes
- */
+ if (req10->replica_flags & DRSUAPI_DRS_SPECIAL_SECRET_PROCESSING) {
+ *is_secret_request = false;
+ return WERR_OK;
+ }
- obj->meta_data_ctr->count = n;
+ if (exop == DRSUAPI_EXOP_REPL_SECRET ||
+ req10->partial_attribute_set == NULL) {
+ /* they want secrets */
+ *is_secret_request = true;
+ return WERR_OK;
+ }
- obj->object.flags = DRSUAPI_DS_REPLICA_OBJECT_FROM_MASTER;
- obj->object.attribute_ctr.num_attributes = obj->meta_data_ctr->count;
- obj->object.attribute_ctr.attributes = talloc_array(obj, struct drsuapi_DsReplicaAttribute,
- obj->object.attribute_ctr.num_attributes);
+ schema = dsdb_get_schema(b_state->sam_ctx, NULL);
- /*
- * Note that the meta_data array and the attributes array must
- * be the same size and in the same order
- */
- for (i=0; i<obj->object.attribute_ctr.num_attributes; i++) {
- struct ldb_message_element *el;
- WERROR werr;
+ /* check the attributes they asked for */
+ for (i=0; i<req10->partial_attribute_set->num_attids; i++) {
const struct dsdb_attribute *sa;
-
- sa = dsdb_attribute_by_attributeID_id(schema, attids[i]);
- if (!sa) {
- DEBUG(0,("Unable to find attributeID %u in schema\n", attids[i]));
- return WERR_DS_DRA_INTERNAL_ERROR;
+ sa = dsdb_attribute_by_attributeID_id(schema, req10->partial_attribute_set->attids[i]);
+ if (sa == NULL) {
+ return WERR_DS_DRA_SCHEMA_MISMATCH;
}
+ if (!dsdb_attr_in_rodc_fas(sa)) {
+ *is_secret_request = true;
+ return WERR_OK;
+ }
+ }
- el = ldb_msg_find_element(msg, sa->lDAPDisplayName);
- if (el == NULL) {
- /* this happens for attributes that have been removed */
- DEBUG(5,("No element '%s' for attributeID %u in message\n",
- sa->lDAPDisplayName, attids[i]));
- ZERO_STRUCT(obj->object.attribute_ctr.attributes[i]);
- obj->object.attribute_ctr.attributes[i].attid = attids[i];
- } else {
- werr = dsdb_attribute_ldb_to_drsuapi(sam_ctx, schema, el, obj,
- &obj->object.attribute_ctr.attributes[i]);
- if (!W_ERROR_IS_OK(werr)) {
- DEBUG(0,("Unable to convert %s to DRS object - %s\n",
- sa->lDAPDisplayName, win_errstr(werr)));
- return werr;
- }
- /* if DRSUAPI_DRS_SPECIAL_SECRET_PROCESSING is set
- * check if attribute is secret and send a null value
- */
- if (replica_flags & DRSUAPI_DRS_SPECIAL_SECRET_PROCESSING) {
- drsuapi_process_secret_attribute(&obj->object.attribute_ctr.attributes[i],
- &obj->meta_data_ctr->meta_data[i]);
+ if (req10->partial_attribute_set_ex) {
+ /* check the extended attributes they asked for */
+ for (i=0; i<req10->partial_attribute_set_ex->num_attids; i++) {
+ const struct dsdb_attribute *sa;
+ sa = dsdb_attribute_by_attributeID_id(schema, req10->partial_attribute_set_ex->attids[i]);
+ if (sa == NULL) {
+ return WERR_DS_DRA_SCHEMA_MISMATCH;
}
- /* some attributes needs to be encrypted
- before being sent */
- werr = drsuapi_encrypt_attribute(obj, session_key, rid,
- &obj->object.attribute_ctr.attributes[i]);
- if (!W_ERROR_IS_OK(werr)) {
- DEBUG(0,("Unable to encrypt %s in DRS object - %s\n",
- sa->lDAPDisplayName, win_errstr(werr)));
- return werr;
+ if (!dsdb_attr_in_rodc_fas(sa)) {
+ *is_secret_request = true;
+ return WERR_OK;
}
}
}
+ *is_secret_request = false;
return WERR_OK;
}
/*
- load replUpToDateVector from a DN
+ see if this getncchanges request is only for attributes in the GC
+ partial attribute set
*/
-static WERROR load_udv(struct ldb_context *sam_ctx, TALLOC_CTX *mem_ctx,
- struct ldb_dn *dn, struct replUpToDateVectorBlob *ouv)
+static WERROR dcesrv_drsuapi_is_gc_pas_request(struct drsuapi_bind_state *b_state,
+ struct drsuapi_DsGetNCChangesRequest10 *req10,
+ bool *is_gc_pas_request)
{
- const char *attrs[] = { "replUpToDateVector", NULL };
- struct ldb_result *res = NULL;
- TALLOC_CTX *tmp_ctx = talloc_new(mem_ctx);
- struct ldb_message_element *el;
- enum ndr_err_code ndr_err;
+ enum drsuapi_DsExtendedOperation exop;
+ uint32_t i;
+ struct dsdb_schema *schema;
- ZERO_STRUCTP(ouv);
+ exop = req10->extended_op;
- if (ldb_search(sam_ctx, tmp_ctx, &res, dn, LDB_SCOPE_BASE, attrs, NULL) != LDB_SUCCESS ||
- res->count < 1) {
- DEBUG(0,("load_udv: failed to read partition object\n"));
- talloc_free(tmp_ctx);
- return WERR_DS_DRA_INTERNAL_ERROR;
+ switch (exop) {
+ case DRSUAPI_EXOP_FSMO_REQ_ROLE:
+ case DRSUAPI_EXOP_FSMO_RID_ALLOC:
+ case DRSUAPI_EXOP_FSMO_RID_REQ_ROLE:
+ case DRSUAPI_EXOP_FSMO_REQ_PDC:
+ case DRSUAPI_EXOP_FSMO_ABANDON_ROLE:
+ case DRSUAPI_EXOP_REPL_SECRET:
+ *is_gc_pas_request = false;
+ return WERR_OK;
+ case DRSUAPI_EXOP_REPL_OBJ:
+ case DRSUAPI_EXOP_NONE:
+ break;
}
- el = ldb_msg_find_element(res->msgs[0], "replUpToDateVector");
- if (el == NULL || el->num_values < 1) {
- talloc_free(tmp_ctx);
- ouv->version = 2;
+ if (req10->partial_attribute_set == NULL) {
+ /* they want it all */
+ *is_gc_pas_request = false;
return WERR_OK;
}
- ndr_err = ndr_pull_struct_blob(&el->values[0],
- mem_ctx, lp_iconv_convenience(ldb_get_opaque(sam_ctx, "loadparm")),
- ouv,
- (ndr_pull_flags_fn_t)ndr_pull_replUpToDateVectorBlob);
- talloc_free(tmp_ctx);
- if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
- DEBUG(0,(__location__ ": Failed to parse replUpToDateVector for %s\n",
- ldb_dn_get_linearized(dn)));
- return WERR_DS_DRA_INTERNAL_ERROR;
+ schema = dsdb_get_schema(b_state->sam_ctx, NULL);
+
+ /* check the attributes they asked for */
+ for (i=0; i<req10->partial_attribute_set->num_attids; i++) {
+ const struct dsdb_attribute *sa;
+ sa = dsdb_attribute_by_attributeID_id(schema, req10->partial_attribute_set->attids[i]);
+ if (sa == NULL) {
+ return WERR_DS_DRA_SCHEMA_MISMATCH;
+ }
+ if (!sa->isMemberOfPartialAttributeSet) {
+ *is_gc_pas_request = false;
+ return WERR_OK;
+ }
}
-
+
+ if (req10->partial_attribute_set_ex) {
+ /* check the extended attributes they asked for */
+ for (i=0; i<req10->partial_attribute_set_ex->num_attids; i++) {
+ const struct dsdb_attribute *sa;
+ sa = dsdb_attribute_by_attributeID_id(schema, req10->partial_attribute_set_ex->attids[i]);
+ if (sa == NULL) {
+ return WERR_DS_DRA_SCHEMA_MISMATCH;
+ }
+ if (!sa->isMemberOfPartialAttributeSet) {
+ *is_gc_pas_request = false;
+ return WERR_OK;
+ }
+ }
+ }
+
+ *is_gc_pas_request = true;
return WERR_OK;
-
}
+
/*
- fill in the cursors return based on the replUpToDateVector for the ncRoot_dn
+ map from req8 to req10
*/
-static WERROR get_nc_changes_udv(struct ldb_context *sam_ctx,
- struct ldb_dn *ncRoot_dn,
- struct drsuapi_DsReplicaCursor2CtrEx *udv,
- uint64_t highestUSN)
+static struct drsuapi_DsGetNCChangesRequest10 *
+getncchanges_map_req8(TALLOC_CTX *mem_ctx,
+ struct drsuapi_DsGetNCChangesRequest8 *req8)
{
- WERROR werr;
- struct drsuapi_DsReplicaCursor2 *tmp_cursor;
- NTTIME now;
- time_t t = time(NULL);
- struct replUpToDateVectorBlob ouv;
+ struct drsuapi_DsGetNCChangesRequest10 *req10 = talloc_zero(mem_ctx,
+ struct drsuapi_DsGetNCChangesRequest10);
+ if (req10 == NULL) {
+ return NULL;
+ }
- werr = load_udv(sam_ctx, udv, ncRoot_dn, &ouv);
- if (!W_ERROR_IS_OK(werr)) {
- return werr;
+ req10->destination_dsa_guid = req8->destination_dsa_guid;
+ req10->source_dsa_invocation_id = req8->source_dsa_invocation_id;
+ req10->naming_context = req8->naming_context;
+ req10->highwatermark = req8->highwatermark;
+ req10->uptodateness_vector = req8->uptodateness_vector;
+ req10->replica_flags = req8->replica_flags;
+ req10->max_object_count = req8->max_object_count;
+ req10->max_ndr_size = req8->max_ndr_size;
+ req10->extended_op = req8->extended_op;
+ req10->fsmo_info = req8->fsmo_info;
+ req10->partial_attribute_set = req8->partial_attribute_set;
+ req10->partial_attribute_set_ex = req8->partial_attribute_set_ex;
+ req10->mapping_ctr = req8->mapping_ctr;
+
+ return req10;
+}
+
+
+/**
+ * Collects object for normal replication cycle.
+ */
+static WERROR getncchanges_collect_objects(struct drsuapi_bind_state *b_state,
+ TALLOC_CTX *mem_ctx,
+ struct drsuapi_DsGetNCChangesRequest10 *req10,
+ struct ldb_dn *search_dn,
+ const char *extra_filter,
+ struct ldb_result **search_res)
+{
+ int ret;
+ char* search_filter;
+ enum ldb_scope scope = LDB_SCOPE_SUBTREE;
+ //const char *extra_filter;
+ struct drsuapi_getncchanges_state *getnc_state = b_state->getncchanges_state;
+ const char *attrs[] = { "uSNChanged",
+ "objectGUID" ,
+ NULL };
+
+ if (req10->extended_op == DRSUAPI_EXOP_REPL_OBJ ||
+ req10->extended_op == DRSUAPI_EXOP_REPL_SECRET) {
+ scope = LDB_SCOPE_BASE;
}
-
- tmp_cursor = talloc(udv, struct drsuapi_DsReplicaCursor2);
- tmp_cursor->source_dsa_invocation_id = *(samdb_ntds_invocation_id(sam_ctx));
- tmp_cursor->highest_usn = highestUSN;
- unix_to_nt_time(&now, t);
- tmp_cursor->last_sync_success = now;
-
- udv->count = ouv.ctr.ctr2.count + 1;
- udv->cursors = talloc_steal(udv, ouv.ctr.ctr2.cursors);
- udv->cursors = talloc_realloc(udv, udv->cursors, struct drsuapi_DsReplicaCursor2, udv->count);
- if (!udv->cursors) {
+
+ //extra_filter = lpcfg_parm_string(dce_call->conn->dce_ctx->lp_ctx, NULL, "drs", "object filter");
+
+ //getnc_state->min_usn = req10->highwatermark.highest_usn;
+
+ /* Construct response. */
+ search_filter = talloc_asprintf(mem_ctx,
+ "(uSNChanged>=%llu)",
+ (unsigned long long)(getnc_state->min_usn+1));
+
+ if (extra_filter) {
+ search_filter = talloc_asprintf(mem_ctx, "(&%s(%s))", search_filter, extra_filter);
+ }
+
+ if (req10->replica_flags & DRSUAPI_DRS_CRITICAL_ONLY) {
+ search_filter = talloc_asprintf(mem_ctx,
+ "(&%s(isCriticalSystemObject=TRUE))",
+ search_filter);
+ }
+
+ if (req10->replica_flags & DRSUAPI_DRS_ASYNC_REP) {
+ scope = LDB_SCOPE_BASE;
+ }
+
+ if (!search_dn) {
+ search_dn = getnc_state->ncRoot_dn;
+ }
+
+ DEBUG(2,(__location__ ": getncchanges on %s using filter %s\n",
+ ldb_dn_get_linearized(getnc_state->ncRoot_dn), search_filter));
+ ret = drsuapi_search_with_extended_dn(b_state->sam_ctx, getnc_state, search_res,
+ search_dn, scope, attrs,
+ search_filter);
+ if (ret != LDB_SUCCESS) {
return WERR_DS_DRA_INTERNAL_ERROR;
}
- udv->cursors[udv->count - 1] = *tmp_cursor;
-
- qsort(udv->cursors, udv->count,
- sizeof(struct drsuapi_DsReplicaCursor2),
- (comparison_fn_t)drsuapi_DsReplicaCursor2_compare);
return WERR_OK;
}
-/* state of a partially completed getncchanges call */
-struct drsuapi_getncchanges_state {
- struct ldb_result *site_res;
- uint32_t num_sent;
- struct ldb_dn *ncRoot_dn;
- uint64_t min_usn;
- uint64_t highest_usn;
-};
+/**
+ * Collects object for normal replication cycle.
+ */
+static WERROR getncchanges_collect_objects_exop(struct drsuapi_bind_state *b_state,
+ TALLOC_CTX *mem_ctx,
+ struct drsuapi_DsGetNCChangesRequest10 *req10,
+ struct drsuapi_DsGetNCChangesCtr6 *ctr6,
+ struct ldb_dn *search_dn,
+ const char *extra_filter,
+ struct ldb_result **search_res)
+{
+ /* we have nothing to do in case of ex-op failure */
+ if (ctr6->extended_ret != DRSUAPI_EXOP_ERR_SUCCESS) {
+ return WERR_OK;
+ }
+
+ /* TODO: implement extended op specific collection
+ * of objects. Right now we just normal procedure
+ * for collecting objects */
+ return getncchanges_collect_objects(b_state, mem_ctx, req10, search_dn, extra_filter, search_res);
+}
/*
drsuapi_DsGetNCChanges
{
struct drsuapi_DsReplicaObjectIdentifier *ncRoot;
int ret;
- int i;
+ uint32_t i;
struct dsdb_schema *schema;
struct drsuapi_DsReplicaOIDMapping_Ctr *ctr;
struct drsuapi_DsReplicaObjectListItemEx **currentObject;
NTSTATUS status;
DATA_BLOB session_key;
- const char *attrs[] = { "*", "distinguishedName",
- "ntSecurityDescriptor",
- "replPropertyMetaData",
- "lmPwdHistory",
- "ntPwdHistory",
- "supplementalCredentials",
- "unicodePwd",
- "parentGUID",
- NULL };
WERROR werr;
struct dcesrv_handle *h;
struct drsuapi_bind_state *b_state;
struct drsuapi_getncchanges_state *getnc_state;
- struct drsuapi_DsGetNCChangesRequest8 *req8;
+ struct drsuapi_DsGetNCChangesRequest10 *req10;
uint32_t options;
+ uint32_t max_objects;
+ uint32_t max_links;
+ uint32_t link_count = 0;
+ uint32_t link_total = 0;
+ uint32_t link_given = 0;
+ struct ldb_dn *search_dn = NULL;
+ bool am_rodc, null_scope=false;
+ enum security_user_level security_level;
+ struct ldb_context *sam_ctx;
+ struct dom_sid *user_sid;
+ bool is_secret_request;
+ bool is_gc_pas_request;
DCESRV_PULL_HANDLE_WERR(h, r->in.bind_handle, DRSUAPI_BIND_HANDLE);
b_state = h->data;
+ sam_ctx = b_state->sam_ctx_system?b_state->sam_ctx_system:b_state->sam_ctx;
+
*r->out.level_out = 6;
/* TODO: linked attributes*/
r->out.ctr->ctr6.linked_attributes_count = 0;
r->out.ctr->ctr6.uptodateness_vector = NULL;
/* a RODC doesn't allow for any replication */
- if (samdb_rodc(ldb_get_opaque(b_state->sam_ctx, "loadparm"))) {
+ ret = samdb_rodc(sam_ctx, &am_rodc);
+ if (ret == LDB_SUCCESS && am_rodc) {
DEBUG(0,(__location__ ": DsGetNCChanges attempt on RODC\n"));
return WERR_DS_DRA_SOURCE_DISABLED;
}
/* Check request revision.
- TODO: Adding mappings to req8 from the other levels
*/
- if (r->in.level != 8) {
+ switch (r->in.level) {
+ case 8:
+ req10 = getncchanges_map_req8(mem_ctx, &r->in.req->req8);
+ if (req10 == NULL) {
+ return WERR_NOMEM;
+ }
+ break;
+ case 10:
+ req10 = &r->in.req->req10;
+ break;
+ default:
DEBUG(0,(__location__ ": Request for DsGetNCChanges with unsupported level %u\n",
r->in.level));
return WERR_REVISION_MISMATCH;
}
- req8 = &r->in.req->req8;
/* Perform access checks. */
/* TODO: we need to support a sync on a specific non-root
* DN. We'll need to find the real partition root here */
- ncRoot = req8->naming_context;
+ ncRoot = req10->naming_context;
if (ncRoot == NULL) {
DEBUG(0,(__location__ ": Request for DsGetNCChanges with no NC\n"));
return WERR_DS_DRA_INVALID_PARAMETER;
}
- if (samdb_ntds_options(b_state->sam_ctx, &options) != LDB_SUCCESS) {
+ if (samdb_ntds_options(sam_ctx, &options) != LDB_SUCCESS) {
return WERR_DS_DRA_INTERNAL_ERROR;
}
if ((options & DS_NTDSDSA_OPT_DISABLE_OUTBOUND_REPL) &&
- !(req8->replica_flags & DRSUAPI_DRS_SYNC_FORCED)) {
+ !(req10->replica_flags & DRSUAPI_DRS_SYNC_FORCED)) {
return WERR_DS_DRA_SOURCE_DISABLED;
}
+ user_sid = &dce_call->conn->auth_state.session_info->security_token->sids[PRIMARY_USER_SID_INDEX];
- if (req8->replica_flags & DRSUAPI_DS_REPLICA_NEIGHBOUR_FULL_SYNC_PACKET) {
- /* Ignore the _in_ uptpdateness vector*/
- req8->uptodateness_vector = NULL;
- }
+ /* all clients must have GUID_DRS_GET_CHANGES */
+ werr = drs_security_access_check_nc_root(b_state->sam_ctx,
+ mem_ctx,
+ dce_call->conn->auth_state.session_info->security_token,
+ req10->naming_context,
+ GUID_DRS_GET_CHANGES);
+ if (!W_ERROR_IS_OK(werr)) {
+ return werr;
+ }
+
+ /* allowed if the GC PAS and client has
+ GUID_DRS_GET_FILTERED_ATTRIBUTES */
+ werr = dcesrv_drsuapi_is_gc_pas_request(b_state, req10, &is_gc_pas_request);
+ if (!W_ERROR_IS_OK(werr)) {
+ return werr;
+ }
+ if (is_gc_pas_request) {
+ werr = drs_security_access_check_nc_root(b_state->sam_ctx,
+ mem_ctx,
+ dce_call->conn->auth_state.session_info->security_token,
+ req10->naming_context,
+ GUID_DRS_GET_FILTERED_ATTRIBUTES);
+ if (W_ERROR_IS_OK(werr)) {
+ goto allowed;
+ }
+ }
- werr = drs_security_level_check(dce_call, "DsGetNCChanges");
+ werr = dcesrv_drsuapi_is_reveal_secrets_request(b_state, req10, &is_secret_request);
if (!W_ERROR_IS_OK(werr)) {
return werr;
}
+ if (is_secret_request && req10->extended_op != DRSUAPI_EXOP_REPL_SECRET) {
+ werr = drs_security_access_check_nc_root(b_state->sam_ctx,
+ mem_ctx,
+ dce_call->conn->auth_state.session_info->security_token,
+ req10->naming_context,
+ GUID_DRS_GET_ALL_CHANGES);
+ if (!W_ERROR_IS_OK(werr)) {
+ return werr;
+ }
+ }
+
+allowed:
+ /* for non-administrator replications, check that they have
+ given the correct source_dsa_invocation_id */
+ security_level = security_session_user_level(dce_call->conn->auth_state.session_info,
+ samdb_domain_sid(sam_ctx));
+ if (security_level == SECURITY_RO_DOMAIN_CONTROLLER) {
+ if (req10->replica_flags & DRSUAPI_DRS_WRIT_REP) {
+ /* we rely on this flag being unset for RODC requests */
+ req10->replica_flags &= ~DRSUAPI_DRS_WRIT_REP;
+ }
+ }
+
+ if (req10->replica_flags & DRSUAPI_DRS_FULL_SYNC_PACKET) {
+ /* Ignore the _in_ uptpdateness vector*/
+ req10->uptodateness_vector = NULL;
+ }
getnc_state = b_state->getncchanges_state;
/* see if a previous replication has been abandoned */
if (getnc_state) {
- struct ldb_dn *new_dn = ldb_dn_new(getnc_state, b_state->sam_ctx, ncRoot->dn);
+ struct ldb_dn *new_dn = drs_ObjectIdentifier_to_dn(getnc_state, sam_ctx, ncRoot);
if (ldb_dn_compare(new_dn, getnc_state->ncRoot_dn) != 0) {
- DEBUG(0,(__location__ ": DsGetNCChanges 2nd replication on different DN %s %s\n",
+ DEBUG(0,(__location__ ": DsGetNCChanges 2nd replication on different DN %s %s (last_dn %s)\n",
ldb_dn_get_linearized(new_dn),
- ldb_dn_get_linearized(getnc_state->ncRoot_dn)));
+ ldb_dn_get_linearized(getnc_state->ncRoot_dn),
+ ldb_dn_get_linearized(getnc_state->last_dn)));
talloc_free(getnc_state);
getnc_state = NULL;
}
return WERR_NOMEM;
}
b_state->getncchanges_state = getnc_state;
- getnc_state->ncRoot_dn = ldb_dn_new(getnc_state, b_state->sam_ctx, ncRoot->dn);
+ getnc_state->ncRoot_dn = drs_ObjectIdentifier_to_dn(getnc_state, sam_ctx, ncRoot);
+
+ /* find out if we are to replicate Schema NC */
+ ret = ldb_dn_compare(getnc_state->ncRoot_dn,
+ ldb_get_schema_basedn(b_state->sam_ctx));
+ getnc_state->is_schema_nc = (0 == ret);
+
+ if (req10->extended_op != DRSUAPI_EXOP_NONE) {
+ r->out.ctr->ctr6.extended_ret = DRSUAPI_EXOP_ERR_SUCCESS;
+ }
+
+ /*
+ * This is the first replication cycle and it is
+ * a good place to handle extended operations
+ *
+ * FIXME: we don't fully support extended operations yet
+ */
+ switch (req10->extended_op) {
+ case DRSUAPI_EXOP_NONE:
+ break;
+ case DRSUAPI_EXOP_FSMO_RID_ALLOC:
+ werr = getncchanges_rid_alloc(b_state, mem_ctx, req10, &r->out.ctr->ctr6);
+ W_ERROR_NOT_OK_RETURN(werr);
+ search_dn = ldb_get_default_basedn(sam_ctx);
+ break;
+ case DRSUAPI_EXOP_REPL_SECRET:
+ werr = getncchanges_repl_secret(b_state, mem_ctx, req10, user_sid, &r->out.ctr->ctr6);
+ r->out.result = werr;
+ W_ERROR_NOT_OK_RETURN(werr);
+ break;
+ case DRSUAPI_EXOP_FSMO_REQ_ROLE:
+ werr = getncchanges_change_master(b_state, mem_ctx, req10, &r->out.ctr->ctr6);
+ W_ERROR_NOT_OK_RETURN(werr);
+ break;
+ case DRSUAPI_EXOP_FSMO_RID_REQ_ROLE:
+ werr = getncchanges_change_master(b_state, mem_ctx, req10, &r->out.ctr->ctr6);
+ W_ERROR_NOT_OK_RETURN(werr);
+ break;
+ case DRSUAPI_EXOP_FSMO_REQ_PDC:
+ werr = getncchanges_change_master(b_state, mem_ctx, req10, &r->out.ctr->ctr6);
+ W_ERROR_NOT_OK_RETURN(werr);
+ break;
+ case DRSUAPI_EXOP_REPL_OBJ:
+ werr = getncchanges_repl_obj(b_state, mem_ctx, req10, user_sid, &r->out.ctr->ctr6);
+ r->out.result = werr;
+ W_ERROR_NOT_OK_RETURN(werr);
+ break;
+
+ case DRSUAPI_EXOP_FSMO_ABANDON_ROLE:
+
+ DEBUG(0,(__location__ ": Request for DsGetNCChanges unsupported extended op 0x%x\n",
+ (unsigned)req10->extended_op));
+ return WERR_DS_DRA_NOT_SUPPORTED;
+ }
}
if (!ldb_dn_validate(getnc_state->ncRoot_dn) ||
ldb_dn_is_null(getnc_state->ncRoot_dn)) {
- DEBUG(0,(__location__ ": Bad DN '%s'\n", ncRoot->dn));
+ DEBUG(0,(__location__ ": Bad DN '%s'\n",
+ drs_ObjectIdentifier_to_string(mem_ctx, ncRoot)));
return WERR_DS_DRA_INVALID_PARAMETER;
}
return WERR_DS_DRA_INTERNAL_ERROR;
}
- /* we don't yet support extended operations */
- if (req8->extended_op != DRSUAPI_EXOP_NONE) {
- DEBUG(0,(__location__ ": Request for DsGetNCChanges extended op 0x%x\n",
- (unsigned)req8->extended_op));
- return WERR_DS_DRA_NOT_SUPPORTED;
- }
-
/*
TODO: MS-DRSR section 4.1.10.1.1
Work out if this is the start of a new cycle */
- if (getnc_state->site_res == NULL) {
- char* search_filter;
- enum ldb_scope scope = LDB_SCOPE_SUBTREE;
+ if (getnc_state->guids == NULL) {
+ const char *extra_filter;
+ struct ldb_result *search_res = NULL;
- getnc_state->min_usn = req8->highwatermark.highest_usn;
+ extra_filter = lpcfg_parm_string(dce_call->conn->dce_ctx->lp_ctx, NULL, "drs", "object filter");
- /* Construct response. */
- search_filter = talloc_asprintf(mem_ctx,
- "(uSNChanged>=%llu)",
- (unsigned long long)(getnc_state->min_usn+1));
-
- if (req8->replica_flags & DRSUAPI_DS_REPLICA_NEIGHBOUR_CRITICAL_ONLY) {
- search_filter = talloc_asprintf(mem_ctx,
- "(&%s(isCriticalSystemObject=TRUE))",
- search_filter);
+ getnc_state->min_usn = req10->highwatermark.highest_usn;
+
+ if (req10->extended_op == DRSUAPI_EXOP_NONE) {
+ werr = getncchanges_collect_objects(b_state, mem_ctx, req10,
+ search_dn, extra_filter,
+ &search_res);
+ } else {
+ werr = getncchanges_collect_objects_exop(b_state, mem_ctx, req10,
+ &r->out.ctr->ctr6,
+ search_dn, extra_filter,
+ &search_res);
}
-
- if (req8->replica_flags & DRSUAPI_DS_REPLICA_NEIGHBOUR_ASYNC_REP) {
- scope = LDB_SCOPE_BASE;
+ W_ERROR_NOT_OK_RETURN(werr);
+
+ if (search_res) {
+ if (req10->replica_flags & DRSUAPI_DRS_GET_ANC) {
+ TYPESAFE_QSORT(search_res->msgs,
+ search_res->count,
+ site_res_cmp_parent_order);
+ } else {
+ TYPESAFE_QSORT(search_res->msgs,
+ search_res->count,
+ site_res_cmp_usn_order);
+ }
}
-
- DEBUG(6,(__location__ ": getncchanges on %s using filter %s\n",
- ldb_dn_get_linearized(getnc_state->ncRoot_dn), search_filter));
- ret = drsuapi_search_with_extended_dn(b_state->sam_ctx, getnc_state, &getnc_state->site_res,
- getnc_state->ncRoot_dn, scope, attrs,
- "uSNChanged",
- search_filter);
- if (ret != LDB_SUCCESS) {
- return WERR_DS_DRA_INTERNAL_ERROR;
+
+ /* extract out the GUIDs list */
+ getnc_state->num_records = search_res ? search_res->count : 0;
+ getnc_state->guids = talloc_array(getnc_state, struct GUID, getnc_state->num_records);
+ W_ERROR_HAVE_NO_MEMORY(getnc_state->guids);
+
+ for (i=0; i<getnc_state->num_records; i++) {
+ getnc_state->guids[i] = samdb_result_guid(search_res->msgs[i], "objectGUID");
+ if (GUID_all_zero(&getnc_state->guids[i])) {
+ DEBUG(2,("getncchanges: bad objectGUID from %s\n", ldb_dn_get_linearized(search_res->msgs[i]->dn)));
+ return WERR_DS_DRA_INTERNAL_ERROR;
+ }
+ }
+
+
+ talloc_free(search_res);
+
+ getnc_state->uptodateness_vector = talloc_steal(getnc_state, req10->uptodateness_vector);
+ if (getnc_state->uptodateness_vector) {
+ /* make sure its sorted */
+ TYPESAFE_QSORT(getnc_state->uptodateness_vector->cursors,
+ getnc_state->uptodateness_vector->count,
+ drsuapi_DsReplicaCursor_compare);
}
}
/* Prefix mapping */
- schema = dsdb_get_schema(b_state->sam_ctx);
+ schema = dsdb_get_schema(sam_ctx, mem_ctx);
if (!schema) {
DEBUG(0,("No schema in sam_ctx\n"));
return WERR_DS_DRA_INTERNAL_ERROR;
r->out.ctr->ctr6.naming_context = talloc(mem_ctx, struct drsuapi_DsReplicaObjectIdentifier);
*r->out.ctr->ctr6.naming_context = *ncRoot;
- if (dsdb_find_guid_by_dn(b_state->sam_ctx, getnc_state->ncRoot_dn,
+ if (dsdb_find_guid_by_dn(sam_ctx, getnc_state->ncRoot_dn,
&r->out.ctr->ctr6.naming_context->guid) != LDB_SUCCESS) {
DEBUG(0,(__location__ ": Failed to find GUID of ncRoot_dn %s\n",
ldb_dn_get_linearized(getnc_state->ncRoot_dn)));
}
/* find the SID if there is one */
- dsdb_find_sid_by_dn(b_state->sam_ctx, getnc_state->ncRoot_dn, &r->out.ctr->ctr6.naming_context->sid);
+ dsdb_find_sid_by_dn(sam_ctx, getnc_state->ncRoot_dn, &r->out.ctr->ctr6.naming_context->sid);
dsdb_get_oid_mappings_drsuapi(schema, true, mem_ctx, &ctr);
r->out.ctr->ctr6.mapping_ctr = *ctr;
- r->out.ctr->ctr6.source_dsa_guid = *(samdb_ntds_objectGUID(b_state->sam_ctx));
- r->out.ctr->ctr6.source_dsa_invocation_id = *(samdb_ntds_invocation_id(b_state->sam_ctx));
+ r->out.ctr->ctr6.source_dsa_guid = *(samdb_ntds_objectGUID(sam_ctx));
+ r->out.ctr->ctr6.source_dsa_invocation_id = *(samdb_ntds_invocation_id(sam_ctx));
- r->out.ctr->ctr6.old_highwatermark = req8->highwatermark;
- r->out.ctr->ctr6.new_highwatermark = req8->highwatermark;
+ r->out.ctr->ctr6.old_highwatermark = req10->highwatermark;
+ r->out.ctr->ctr6.new_highwatermark = req10->highwatermark;
r->out.ctr->ctr6.first_object = NULL;
currentObject = &r->out.ctr->ctr6.first_object;
- for(i=getnc_state->num_sent;
- i<getnc_state->site_res->count &&
- (r->out.ctr->ctr6.object_count < req8->max_object_count);
+ /* use this to force single objects at a time, which is useful
+ * for working out what object is giving problems
+ */
+ max_objects = lpcfg_parm_int(dce_call->conn->dce_ctx->lp_ctx, NULL, "drs", "max object sync", 1000);
+ if (req10->max_object_count < max_objects) {
+ max_objects = req10->max_object_count;
+ }
+ /*
+ * TODO: work out how the maximum should be calculated
+ */
+ max_links = lpcfg_parm_int(dce_call->conn->dce_ctx->lp_ctx, NULL, "drs", "max link sync", 1500);
+
+ for (i=getnc_state->num_processed;
+ i<getnc_state->num_records &&
+ !null_scope &&
+ (r->out.ctr->ctr6.object_count < max_objects);
i++) {
int uSN;
struct drsuapi_DsReplicaObjectListItemEx *obj;
+ struct ldb_message *msg;
+ static const char * const msg_attrs[] = {
+ "*",
+ "nTSecurityDescriptor",
+ "parentGUID",
+ "replPropertyMetaData",
+ DSDB_SECRET_ATTRIBUTES,
+ NULL };
+ struct ldb_result *msg_res;
+ struct ldb_dn *msg_dn;
+
obj = talloc_zero(mem_ctx, struct drsuapi_DsReplicaObjectListItemEx);
+ W_ERROR_HAVE_NO_MEMORY(obj);
- uSN = ldb_msg_find_attr_as_int(getnc_state->site_res->msgs[i], "uSNChanged", -1);
- if (uSN > r->out.ctr->ctr6.new_highwatermark.tmp_highest_usn) {
- r->out.ctr->ctr6.new_highwatermark.tmp_highest_usn = uSN;
- }
- if (uSN > getnc_state->highest_usn) {
- getnc_state->highest_usn = uSN;
+ msg_dn = ldb_dn_new_fmt(obj, sam_ctx, "<GUID=%s>", GUID_string(obj, &getnc_state->guids[i]));
+ W_ERROR_HAVE_NO_MEMORY(msg_dn);
+
+
+ /* by re-searching here we avoid having a lot of full
+ * records in memory between calls to getncchanges
+ */
+ ret = drsuapi_search_with_extended_dn(sam_ctx, obj, &msg_res,
+ msg_dn,
+ LDB_SCOPE_BASE, msg_attrs, NULL);
+ if (ret != LDB_SUCCESS) {
+ if (ret != LDB_ERR_NO_SUCH_OBJECT) {
+ DEBUG(1,("getncchanges: failed to fetch DN %s - %s\n",
+ ldb_dn_get_extended_linearized(obj, msg_dn, 1), ldb_errstring(sam_ctx)));
+ }
+ talloc_free(obj);
+ continue;
}
- werr = get_nc_changes_build_object(obj, getnc_state->site_res->msgs[i],
- b_state->sam_ctx, getnc_state->ncRoot_dn,
+ msg = msg_res->msgs[0];
+
+ werr = get_nc_changes_build_object(obj, msg,
+ sam_ctx, getnc_state->ncRoot_dn,
+ getnc_state->is_schema_nc,
schema, &session_key, getnc_state->min_usn,
- req8->replica_flags);
+ req10->replica_flags,
+ req10->partial_attribute_set,
+ getnc_state->uptodateness_vector,
+ req10->extended_op);
+ if (!W_ERROR_IS_OK(werr)) {
+ return werr;
+ }
+
+ werr = get_nc_changes_add_links(sam_ctx, getnc_state,
+ getnc_state->ncRoot_dn,
+ schema, getnc_state->min_usn,
+ req10->replica_flags,
+ msg,
+ &getnc_state->la_list,
+ &getnc_state->la_count,
+ getnc_state->uptodateness_vector);
if (!W_ERROR_IS_OK(werr)) {
return werr;
}
+ uSN = ldb_msg_find_attr_as_int(msg, "uSNChanged", -1);
+ if (uSN > r->out.ctr->ctr6.new_highwatermark.tmp_highest_usn) {
+ r->out.ctr->ctr6.new_highwatermark.tmp_highest_usn = uSN;
+ }
+ if (uSN > getnc_state->highest_usn) {
+ getnc_state->highest_usn = uSN;
+ }
+
if (obj->meta_data_ctr == NULL) {
- DEBUG(0,(__location__ ": getncchanges skipping send of object %s\n",
- ldb_dn_get_linearized(getnc_state->site_res->msgs[i]->dn)));
+ DEBUG(8,(__location__ ": getncchanges skipping send of object %s\n",
+ ldb_dn_get_linearized(msg->dn)));
/* no attributes to send */
talloc_free(obj);
continue;
*currentObject = obj;
currentObject = &obj->next_object;
+
+ talloc_free(getnc_state->last_dn);
+ getnc_state->last_dn = ldb_dn_copy(getnc_state, msg->dn);
+
+ DEBUG(8,(__location__ ": replicating object %s\n", ldb_dn_get_linearized(msg->dn)));
+
+ talloc_free(msg_res);
+ talloc_free(msg_dn);
}
- getnc_state->num_sent += r->out.ctr->ctr6.object_count;
+ getnc_state->num_processed = i;
- r->out.ctr->ctr6.nc_object_count = getnc_state->site_res->count;
+ r->out.ctr->ctr6.nc_object_count = getnc_state->num_records;
/* the client can us to call UpdateRefs on its behalf to
re-establish monitoring of the NC */
- if ((req8->replica_flags & DRSUAPI_DRS_ADD_REF) &&
- !GUID_all_zero(&req8->destination_dsa_guid)) {
+ if ((req10->replica_flags & (DRSUAPI_DRS_ADD_REF | DRSUAPI_DRS_REF_GCSPN)) &&
+ !GUID_all_zero(&req10->destination_dsa_guid)) {
struct drsuapi_DsReplicaUpdateRefsRequest1 ureq;
+ DEBUG(3,("UpdateRefs on getncchanges for %s\n",
+ GUID_string(mem_ctx, &req10->destination_dsa_guid)));
ureq.naming_context = ncRoot;
- ureq.dest_dsa_dns_name = talloc_asprintf(mem_ctx, "%s._msdcs.%s",
- GUID_string(mem_ctx, &req8->destination_dsa_guid),
- lp_realm(dce_call->conn->dce_ctx->lp_ctx));
+ ureq.dest_dsa_dns_name = samdb_ntds_msdcs_dns_name(b_state->sam_ctx, mem_ctx,
+ &req10->destination_dsa_guid);
if (!ureq.dest_dsa_dns_name) {
return WERR_NOMEM;
}
- ureq.dest_dsa_guid = req8->destination_dsa_guid;
- ureq.options = DRSUAPI_DS_REPLICA_UPDATE_ADD_REFERENCE |
- DRSUAPI_DS_REPLICA_UPDATE_ASYNCHRONOUS_OPERATION |
- DRSUAPI_DS_REPLICA_UPDATE_GETCHG_CHECK;
+ ureq.dest_dsa_guid = req10->destination_dsa_guid;
+ ureq.options = DRSUAPI_DRS_ADD_REF |
+ DRSUAPI_DRS_ASYNC_OP |
+ DRSUAPI_DRS_GETCHG_CHECK;
+
+ /* we also need to pass through the
+ DRSUAPI_DRS_REF_GCSPN bit so that repsTo gets flagged
+ to send notifies using the GC SPN */
+ ureq.options |= (req10->replica_flags & DRSUAPI_DRS_REF_GCSPN);
+
werr = drsuapi_UpdateRefs(b_state, mem_ctx, &ureq);
if (!W_ERROR_IS_OK(werr)) {
DEBUG(0,(__location__ ": Failed UpdateRefs in DsGetNCChanges - %s\n",
}
}
- if (i < getnc_state->site_res->count) {
+ /*
+ * TODO:
+ * This is just a guess, how to calculate the
+ * number of linked attributes to send, we need to
+ * find out how to do this right.
+ */
+ if (r->out.ctr->ctr6.object_count >= max_links) {
+ max_links = 0;
+ } else {
+ max_links -= r->out.ctr->ctr6.object_count;
+ }
+
+ link_total = getnc_state->la_count;
+
+ if (i < getnc_state->num_records) {
r->out.ctr->ctr6.more_data = true;
} else {
- r->out.ctr->ctr6.uptodateness_vector = talloc(mem_ctx, struct drsuapi_DsReplicaCursor2CtrEx);
- r->out.ctr->ctr6.uptodateness_vector->version = 2;
- r->out.ctr->ctr6.uptodateness_vector->reserved1 = 0;
- r->out.ctr->ctr6.uptodateness_vector->reserved2 = 0;
+ /* sort the whole array the first time */
+ if (!getnc_state->la_sorted) {
+ LDB_TYPESAFE_QSORT(getnc_state->la_list, getnc_state->la_count,
+ sam_ctx, linked_attribute_compare);
+ getnc_state->la_sorted = true;
+ }
+
+ link_count = getnc_state->la_count - getnc_state->la_idx;
+ link_count = MIN(max_links, link_count);
+
+ r->out.ctr->ctr6.linked_attributes_count = link_count;
+ r->out.ctr->ctr6.linked_attributes = getnc_state->la_list + getnc_state->la_idx;
+
+ getnc_state->la_idx += link_count;
+ link_given = getnc_state->la_idx;
+ if (getnc_state->la_idx < getnc_state->la_count) {
+ r->out.ctr->ctr6.more_data = true;
+ }
+ }
+
+ if (!r->out.ctr->ctr6.more_data) {
+ talloc_steal(mem_ctx, getnc_state->la_list);
+
+ r->out.ctr->ctr6.uptodateness_vector = talloc(mem_ctx, struct drsuapi_DsReplicaCursor2CtrEx);
r->out.ctr->ctr6.new_highwatermark.highest_usn = r->out.ctr->ctr6.new_highwatermark.tmp_highest_usn;
- werr = get_nc_changes_udv(b_state->sam_ctx, getnc_state->ncRoot_dn,
- r->out.ctr->ctr6.uptodateness_vector,
- getnc_state->highest_usn);
+ werr = get_nc_changes_udv(sam_ctx, getnc_state->ncRoot_dn,
+ r->out.ctr->ctr6.uptodateness_vector);
if (!W_ERROR_IS_OK(werr)) {
return werr;
}
b_state->getncchanges_state = NULL;
}
- DEBUG(2,("DsGetNCChanges with uSNChanged >= %llu flags 0x%08x on %s gave %u objects (done %d/%d)\n",
- (unsigned long long)(req8->highwatermark.highest_usn+1),
- req8->replica_flags,
- ncRoot->dn, r->out.ctr->ctr6.object_count,
- i, r->out.ctr->ctr6.more_data?getnc_state->site_res->count:i));
+ if (req10->extended_op != DRSUAPI_EXOP_NONE) {
+ r->out.ctr->ctr6.uptodateness_vector = NULL;
+ r->out.ctr->ctr6.nc_object_count = 0;
+ ZERO_STRUCT(r->out.ctr->ctr6.new_highwatermark);
+ }
+
+ DEBUG(r->out.ctr->ctr6.more_data?4:2,
+ ("DsGetNCChanges with uSNChanged >= %llu flags 0x%08x on %s gave %u objects (done %u/%u) %u links (done %u/%u (as %s))\n",
+ (unsigned long long)(req10->highwatermark.highest_usn+1),
+ req10->replica_flags, drs_ObjectIdentifier_to_string(mem_ctx, ncRoot),
+ r->out.ctr->ctr6.object_count,
+ i, r->out.ctr->ctr6.more_data?getnc_state->num_records:i,
+ r->out.ctr->ctr6.linked_attributes_count,
+ link_given, link_total,
+ dom_sid_string(mem_ctx, user_sid)));
+
+#if 0
+ if (!r->out.ctr->ctr6.more_data && req10->extended_op != DRSUAPI_EXOP_NONE) {
+ NDR_PRINT_FUNCTION_DEBUG(drsuapi_DsGetNCChanges, NDR_BOTH, r);
+ }
+#endif
return WERR_OK;
}
git.samba.org / mat / samba.git / blobdiff