DCESRV_FAULT(DCERPC_FAULT_OP_RNG_ERROR);
}
+#define DNS_CMP_MATCH 0
+#define DNS_CMP_FIRST_IS_CHILD 1
+#define DNS_CMP_SECOND_IS_CHILD 2
+#define DNS_CMP_NO_MATCH 3
+
+/* this function assumes names are well formed DNS names.
+ * it doesn't validate them */
+static int dns_cmp(const char *s1, size_t l1,
+ const char *s2, size_t l2)
+{
+ const char *p1, *p2;
+ size_t t1, t2;
+ int cret;
-/*
+ if (l1 == l2) {
+ if (strcasecmp_m(s1, s2) == 0) {
+ return DNS_CMP_MATCH;
+ }
+ return DNS_CMP_NO_MATCH;
+ }
+
+ if (l1 > l2) {
+ p1 = s1;
+ p2 = s2;
+ t1 = l1;
+ t2 = l2;
+ cret = DNS_CMP_FIRST_IS_CHILD;
+ } else {
+ p1 = s2;
+ p2 = s1;
+ t1 = l2;
+ t2 = l1;
+ cret = DNS_CMP_SECOND_IS_CHILD;
+ }
+
+ if (p1[t1 - t2 - 1] != '.') {
+ return DNS_CMP_NO_MATCH;
+ }
+
+ if (strcasecmp_m(&p1[t1 - t2], p2) == 0) {
+ return cret;
+ }
+
+ return DNS_CMP_NO_MATCH;
+}
+
+/* decode all TDOs forest trust info blobs */
+static NTSTATUS get_ft_info(TALLOC_CTX *mem_ctx,
+ struct smb_iconv_convenience *ic,
+ struct ldb_message *msg,
+ struct ForestTrustInfo *info)
+{
+ const struct ldb_val *ft_blob;
+ enum ndr_err_code ndr_err;
+
+ ft_blob = ldb_msg_find_ldb_val(msg, "msDS-TrustForestTrustInfo");
+ if (!ft_blob || !ft_blob->data) {
+ return NT_STATUS_OBJECT_NAME_NOT_FOUND;
+ }
+ /* ldb_val is equivalent to DATA_BLOB */
+ ndr_err = ndr_pull_struct_blob_all(ft_blob, mem_ctx, ic,
+ info,
+ (ndr_pull_flags_fn_t)ndr_pull_ForestTrustInfo);
+ if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
+ return NT_STATUS_INVALID_DOMAIN_STATE;
+ }
+
+ return NT_STATUS_OK;
+}
+
+static NTSTATUS own_ft_info(struct lsa_policy_state *ps,
+ struct ForestTrustInfo *fti)
+{
+ struct ForestTrustDataDomainInfo *info;
+ struct ForestTrustInfoRecord *rec;
+
+ fti->version = 1;
+ fti->count = 2;
+ fti->records = talloc_array(fti,
+ struct ForestTrustInfoRecordArmor, 2);
+ if (!fti->records) {
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ /* TLN info */
+ rec = &fti->records[0].record;
+
+ rec->flags = 0;
+ rec->timestamp = 0;
+ rec->type = LSA_FOREST_TRUST_TOP_LEVEL_NAME;
+
+ rec->data.name.string = talloc_strdup(fti, ps->forest_dns);
+ if (!rec->data.name.string) {
+ return NT_STATUS_NO_MEMORY;
+ }
+ rec->data.name.size = strlen(rec->data.name.string);
+
+ /* DOMAIN info */
+ rec = &fti->records[1].record;
+
+ rec->flags = 0;
+ rec->timestamp = 0;
+ rec->type = LSA_FOREST_TRUST_DOMAIN_INFO;
+
+ info = &rec->data.info;
+
+ info->sid = *ps->domain_sid;
+ info->dns_name.string = talloc_strdup(fti, ps->domain_dns);
+ if (!info->dns_name.string) {
+ return NT_STATUS_NO_MEMORY;
+ }
+ info->dns_name.size = strlen(info->dns_name.string);
+ info->netbios_name.string = talloc_strdup(fti, ps->domain_name);
+ if (!info->netbios_name.string) {
+ return NT_STATUS_NO_MEMORY;
+ }
+ info->netbios_name.size = strlen(info->netbios_name.string);
+
+ return NT_STATUS_OK;
+}
+
+static NTSTATUS make_ft_info(TALLOC_CTX *mem_ctx,
+ struct lsa_ForestTrustInformation *lfti,
+ struct ForestTrustInfo *fti)
+{
+ struct lsa_ForestTrustRecord *lrec;
+ struct ForestTrustInfoRecord *rec;
+ struct lsa_StringLarge *tln;
+ struct lsa_ForestTrustDomainInfo *info;
+ uint32_t i;
+
+ fti->version = 1;
+ fti->count = lfti->count;
+ fti->records = talloc_array(mem_ctx,
+ struct ForestTrustInfoRecordArmor,
+ fti->count);
+ if (!fti->records) {
+ return NT_STATUS_NO_MEMORY;
+ }
+ for (i = 0; i < fti->count; i++) {
+ lrec = lfti->entries[i];
+ rec = &fti->records[i].record;
+
+ rec->flags = lrec->flags;
+ rec->timestamp = lrec->time;
+ rec->type = lrec->type;
+
+ switch (lrec->type) {
+ case LSA_FOREST_TRUST_TOP_LEVEL_NAME:
+ case LSA_FOREST_TRUST_TOP_LEVEL_NAME_EX:
+ tln = &lrec->forest_trust_data.top_level_name;
+ rec->data.name.string =
+ talloc_strdup(mem_ctx, tln->string);
+ if (!rec->data.name.string) {
+ return NT_STATUS_NO_MEMORY;
+ }
+ rec->data.name.size = strlen(rec->data.name.string);
+ break;
+ case LSA_FOREST_TRUST_DOMAIN_INFO:
+ info = &lrec->forest_trust_data.domain_info;
+ rec->data.info.sid = *info->domain_sid;
+ rec->data.info.dns_name.string =
+ talloc_strdup(mem_ctx,
+ info->dns_domain_name.string);
+ if (!rec->data.info.dns_name.string) {
+ return NT_STATUS_NO_MEMORY;
+ }
+ rec->data.info.dns_name.size =
+ strlen(rec->data.info.dns_name.string);
+ rec->data.info.netbios_name.string =
+ talloc_strdup(mem_ctx,
+ info->netbios_domain_name.string);
+ if (!rec->data.info.netbios_name.string) {
+ return NT_STATUS_NO_MEMORY;
+ }
+ rec->data.info.netbios_name.size =
+ strlen(rec->data.info.netbios_name.string);
+ break;
+ default:
+ return NT_STATUS_INVALID_DOMAIN_STATE;
+ }
+ }
+
+ return NT_STATUS_OK;
+}
+
+static NTSTATUS add_collision(struct lsa_ForestTrustCollisionInfo *c_info,
+ uint32_t index, uint32_t collision_type,
+ uint32_t conflict_type, const char *tdo_name);
+
+static NTSTATUS check_ft_info(TALLOC_CTX *mem_ctx,
+ const char *tdo_name,
+ struct ForestTrustInfo *tdo_fti,
+ struct ForestTrustInfo *new_fti,
+ struct lsa_ForestTrustCollisionInfo *c_info)
+{
+ struct ForestTrustInfoRecord *nrec;
+ struct ForestTrustInfoRecord *trec;
+ const char *dns_name;
+ const char *nb_name;
+ struct dom_sid *sid;
+ const char *tname;
+ size_t dns_len;
+ size_t nb_len;
+ size_t tlen;
+ NTSTATUS nt_status;
+ uint32_t new_fti_idx;
+ uint32_t i;
+ /* use always TDO type, until we understand when Xref can be used */
+ uint32_t collision_type = LSA_FOREST_TRUST_COLLISION_TDO;
+ bool tln_conflict;
+ bool sid_conflict;
+ bool nb_conflict;
+ bool exclusion;
+ bool ex_rule;
+ int ret;
+
+ for (new_fti_idx = 0; new_fti_idx < new_fti->count; new_fti_idx++) {
+
+ nrec = &new_fti->records[new_fti_idx].record;
+ dns_name = NULL;
+ tln_conflict = false;
+ sid_conflict = false;
+ nb_conflict = false;
+ exclusion = false;
+
+ switch (nrec->type) {
+ case LSA_FOREST_TRUST_TOP_LEVEL_NAME_EX:
+ /* exclusions do not conflict by definition */
+ break;
+
+ case FOREST_TRUST_TOP_LEVEL_NAME:
+ dns_name = nrec->data.name.string;
+ dns_len = nrec->data.name.size;
+ break;
+
+ case LSA_FOREST_TRUST_DOMAIN_INFO:
+ dns_name = nrec->data.info.dns_name.string;
+ dns_len = nrec->data.info.dns_name.size;
+ nb_name = nrec->data.info.netbios_name.string;
+ nb_len = nrec->data.info.netbios_name.size;
+ sid = &nrec->data.info.sid;
+ break;
+ }
+
+ if (!dns_name) continue;
+
+ /* check if this is already taken and not excluded */
+ for (i = 0; i < tdo_fti->count; i++) {
+ trec = &tdo_fti->records[i].record;
+
+ switch (trec->type) {
+ case FOREST_TRUST_TOP_LEVEL_NAME:
+ ex_rule = false;
+ tname = trec->data.name.string;
+ tlen = trec->data.name.size;
+ break;
+ case FOREST_TRUST_TOP_LEVEL_NAME_EX:
+ ex_rule = true;
+ tname = trec->data.name.string;
+ tlen = trec->data.name.size;
+ break;
+ case FOREST_TRUST_DOMAIN_INFO:
+ ex_rule = false;
+ tname = trec->data.info.dns_name.string;
+ tlen = trec->data.info.dns_name.size;
+ }
+ ret = dns_cmp(dns_name, dns_len, tname, tlen);
+ switch (ret) {
+ case DNS_CMP_MATCH:
+ /* if it matches exclusion,
+ * it doesn't conflict */
+ if (ex_rule) {
+ exclusion = true;
+ break;
+ }
+ /* fall through */
+ case DNS_CMP_FIRST_IS_CHILD:
+ case DNS_CMP_SECOND_IS_CHILD:
+ tln_conflict = true;
+ /* fall through */
+ default:
+ break;
+ }
+
+ /* explicit exclusion, no dns name conflict here */
+ if (exclusion) {
+ tln_conflict = false;
+ }
+
+ if (nrec->type != FOREST_TRUST_DOMAIN_INFO) {
+ continue;
+ }
+
+ /* also test for domain info */
+ if (!(trec->flags & LSA_SID_DISABLED_ADMIN) &&
+ dom_sid_compare(&trec->data.info.sid, sid) == 0) {
+ sid_conflict = true;
+ }
+ if (!(trec->flags & LSA_NB_DISABLED_ADMIN) &&
+ strcasecmp_m(trec->data.info.netbios_name.string,
+ nb_name) == 0) {
+ nb_conflict = true;
+ }
+ }
+
+ if (tln_conflict) {
+ nt_status = add_collision(c_info, new_fti_idx,
+ collision_type,
+ LSA_TLN_DISABLED_CONFLICT,
+ tdo_name);
+ }
+ if (sid_conflict) {
+ nt_status = add_collision(c_info, new_fti_idx,
+ collision_type,
+ LSA_SID_DISABLED_CONFLICT,
+ tdo_name);
+ }
+ if (nb_conflict) {
+ nt_status = add_collision(c_info, new_fti_idx,
+ collision_type,
+ LSA_NB_DISABLED_CONFLICT,
+ tdo_name);
+ }
+ }
+
+ return NT_STATUS_OK;
+}
+
+static NTSTATUS add_collision(struct lsa_ForestTrustCollisionInfo *c_info,
+ uint32_t idx, uint32_t collision_type,
+ uint32_t conflict_type, const char *tdo_name)
+{
+ struct lsa_ForestTrustCollisionRecord **es;
+ uint32_t i = c_info->count;
+
+ es = talloc_realloc(c_info, c_info->entries,
+ struct lsa_ForestTrustCollisionRecord *, i + 1);
+ if (!es) {
+ return NT_STATUS_NO_MEMORY;
+ }
+ c_info->entries = es;
+ c_info->count = i + 1;
+
+ es[i] = talloc(es, struct lsa_ForestTrustCollisionRecord);
+ if (!es[i]) {
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ es[i]->index = idx;
+ es[i]->type = collision_type;
+ es[i]->flags.flags = conflict_type;
+ es[i]->name.string = talloc_strdup(es[i], tdo_name);
+ if (!es[i]->name.string) {
+ return NT_STATUS_NO_MEMORY;
+ }
+ es[i]->name.size = strlen(es[i]->name.string);
+
+ return NT_STATUS_OK;
+}
+
+/*
lsa_lsaRSetForestTrustInformation
*/
-static NTSTATUS dcesrv_lsa_lsaRSetForestTrustInformation(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
- struct lsa_lsaRSetForestTrustInformation *r)
+static NTSTATUS dcesrv_lsa_lsaRSetForestTrustInformation(struct dcesrv_call_state *dce_call,
+ TALLOC_CTX *mem_ctx,
+ struct lsa_lsaRSetForestTrustInformation *r)
{
- DCESRV_FAULT(DCERPC_FAULT_OP_RNG_ERROR);
-}
+ struct dcesrv_handle *h;
+ struct lsa_policy_state *p_state;
+ struct loadparm_context *lp_ctx = dce_call->conn->dce_ctx->lp_ctx;
+ struct smb_iconv_convenience *ic = lp_iconv_convenience(lp_ctx);
+ const char *trust_attrs[] = { "trustPartner", "trustAttributes",
+ "msDS-TrustForestTrustInfo", NULL };
+ struct ldb_message **dom_res = NULL;
+ struct ldb_dn *tdo_dn;
+ struct ldb_message *msg;
+ int num_res, i;
+ const char *td_name;
+ uint32_t trust_attributes;
+ struct lsa_ForestTrustCollisionInfo *c_info;
+ struct ForestTrustInfo *nfti;
+ struct ForestTrustInfo *fti;
+ DATA_BLOB ft_blob;
+ enum ndr_err_code ndr_err;
+ NTSTATUS nt_status;
+ int ret;
+
+ DCESRV_PULL_HANDLE(h, r->in.handle, LSA_HANDLE_POLICY);
+
+ p_state = h->data;
+
+ if (strcmp(p_state->domain_dns, p_state->forest_dns)) {
+ return NT_STATUS_INVALID_DOMAIN_STATE;
+ }
+
+ /* abort if we are not a PDC */
+ if (!samdb_is_pdc(p_state->sam_ldb)) {
+ return NT_STATUS_INVALID_DOMAIN_ROLE;
+ }
+
+ if (samdb_rodc(p_state->sam_ldb)) {
+ return NT_STATUS_NO_SUCH_DOMAIN;
+ }
+
+ /* check caller has TRUSTED_SET_AUTH */
+
+ /* fetch all trusted domain objects */
+ num_res = gendb_search(p_state->sam_ldb, mem_ctx,
+ p_state->system_dn,
+ &dom_res, trust_attrs,
+ "(objectclass=trustedDomain)");
+ if (num_res == 0) {
+ return NT_STATUS_NO_SUCH_DOMAIN;
+ }
+
+ for (i = 0; i < num_res; i++) {
+ td_name = ldb_msg_find_attr_as_string(dom_res[i],
+ "trustPartner", NULL);
+ if (!td_name) {
+ return NT_STATUS_INVALID_DOMAIN_STATE;
+ }
+ if (strcasecmp_m(td_name,
+ r->in.trusted_domain_name->string) == 0) {
+ break;
+ }
+ }
+ if (i >= num_res) {
+ return NT_STATUS_NO_SUCH_DOMAIN;
+ }
+
+ tdo_dn = dom_res[i]->dn;
+
+ trust_attributes = samdb_result_uint(dom_res[i],
+ "trustAttributes", 0);
+ if (!(trust_attributes & NETR_TRUST_ATTRIBUTE_FOREST_TRANSITIVE)) {
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+
+ if (r->in.highest_record_type >= LSA_FOREST_TRUST_RECORD_TYPE_LAST) {
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+
+ nfti = talloc(mem_ctx, struct ForestTrustInfo);
+ if (!nfti) {
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ nt_status = make_ft_info(nfti, r->in.forest_trust_info, nfti);
+ if (!NT_STATUS_IS_OK(nt_status)) {
+ return nt_status;
+ }
+
+ c_info = talloc_zero(r->out.collision_info,
+ struct lsa_ForestTrustCollisionInfo);
+ if (!c_info) {
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ /* first check own info, then other domains */
+ fti = talloc(mem_ctx, struct ForestTrustInfo);
+ if (!fti) {
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ nt_status = own_ft_info(p_state, fti);
+ if (!NT_STATUS_IS_OK(nt_status)) {
+ return nt_status;
+ }
+
+ nt_status = check_ft_info(c_info, p_state->domain_dns,
+ fti, nfti, c_info);
+ if (!NT_STATUS_IS_OK(nt_status)) {
+ return nt_status;
+ }
+
+ for (i = 0; i < num_res; i++) {
+ fti = talloc(mem_ctx, struct ForestTrustInfo);
+ if (!fti) {
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ nt_status = get_ft_info(mem_ctx, ic, dom_res[i], fti);
+ if (!NT_STATUS_IS_OK(nt_status)) {
+ if (NT_STATUS_EQUAL(nt_status,
+ NT_STATUS_OBJECT_NAME_NOT_FOUND)) {
+ continue;
+ }
+ return nt_status;
+ }
+
+ td_name = ldb_msg_find_attr_as_string(dom_res[i],
+ "trustPartner", NULL);
+ if (!td_name) {
+ return NT_STATUS_INVALID_DOMAIN_STATE;
+ }
+
+ nt_status = check_ft_info(c_info, td_name, fti, nfti, c_info);
+ if (!NT_STATUS_IS_OK(nt_status)) {
+ return nt_status;
+ }
+ }
+
+ *r->out.collision_info = c_info;
+
+ if (r->in.check_only != 0) {
+ return NT_STATUS_OK;
+ }
+
+ /* not just a check, write info back */
+
+ ndr_err = ndr_push_struct_blob(&ft_blob, mem_ctx, ic,
+ nfti,
+ (ndr_push_flags_fn_t)ndr_push_ForestTrustInfo);
+ if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+
+ msg = ldb_msg_new(mem_ctx);
+ if (msg == NULL) {
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ msg->dn = ldb_dn_copy(mem_ctx, tdo_dn);
+ if (!msg->dn) {
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ ret = ldb_msg_add_empty(msg, "msDS-TrustForestTrustInfo",
+ LDB_FLAG_MOD_REPLACE, NULL);
+ if (ret != LDB_SUCCESS) {
+ return NT_STATUS_NO_MEMORY;
+ }
+ ret = ldb_msg_add_value(msg, "msDS-TrustForestTrustInfo",
+ &ft_blob, NULL);
+ if (ret != LDB_SUCCESS) {
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ ret = ldb_modify(p_state->sam_ldb, msg);
+ if (ret != LDB_SUCCESS) {
+ DEBUG(0, ("Failed to store Forest Trust Info: %s\n",
+ ldb_errstring(p_state->sam_ldb)));
+
+ switch (ret) {
+ case LDB_ERR_INSUFFICIENT_ACCESS_RIGHTS:
+ return NT_STATUS_ACCESS_DENIED;
+ default:
+ return NT_STATUS_INTERNAL_DB_CORRUPTION;
+ }
+ }
+ return NT_STATUS_OK;
+}
/*
lsa_CREDRRENAME
git.samba.org / kamenim / samba.git / commitdiff