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-rw-r--r--source4/ldap_server/ldap_backend.c1617
1 files changed, 1617 insertions, 0 deletions
diff --git a/source4/ldap_server/ldap_backend.c b/source4/ldap_server/ldap_backend.c
new file mode 100644
index 0000000..9429ba1
--- /dev/null
+++ b/source4/ldap_server/ldap_backend.c
@@ -0,0 +1,1617 @@
+/*
+ Unix SMB/CIFS implementation.
+ LDAP server
+ Copyright (C) Stefan Metzmacher 2004
+ Copyright (C) Matthias Dieter Wallnöfer 2009
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "includes.h"
+#include "ldap_server/ldap_server.h"
+#include "../lib/util/dlinklist.h"
+#include "auth/credentials/credentials.h"
+#include "auth/gensec/gensec.h"
+#include "auth/gensec/gensec_internal.h" /* TODO: remove this */
+#include "auth/common_auth.h"
+#include "param/param.h"
+#include "samba/service_stream.h"
+#include "dsdb/samdb/samdb.h"
+#include <ldb_errors.h>
+#include <ldb_module.h>
+#include "ldb_wrap.h"
+#include "lib/tsocket/tsocket.h"
+#include "libcli/ldap/ldap_proto.h"
+#include "source4/auth/auth.h"
+
+static int map_ldb_error(TALLOC_CTX *mem_ctx, int ldb_err,
+ const char *add_err_string, const char **errstring)
+{
+ WERROR err;
+
+ /* Certain LDB modules need to return very special WERROR codes. Proof
+ * for them here and if they exist skip the rest of the mapping. */
+ if (add_err_string != NULL) {
+ char *endptr;
+ strtol(add_err_string, &endptr, 16);
+ if (endptr != add_err_string) {
+ *errstring = add_err_string;
+ return ldb_err;
+ }
+ }
+
+ /* Otherwise we calculate here a generic, but appropriate WERROR. */
+
+ switch (ldb_err) {
+ case LDB_SUCCESS:
+ err = WERR_OK;
+ break;
+ case LDB_ERR_OPERATIONS_ERROR:
+ err = WERR_DS_OPERATIONS_ERROR;
+ break;
+ case LDB_ERR_PROTOCOL_ERROR:
+ err = WERR_DS_PROTOCOL_ERROR;
+ break;
+ case LDB_ERR_TIME_LIMIT_EXCEEDED:
+ err = WERR_DS_TIMELIMIT_EXCEEDED;
+ break;
+ case LDB_ERR_SIZE_LIMIT_EXCEEDED:
+ err = WERR_DS_SIZELIMIT_EXCEEDED;
+ break;
+ case LDB_ERR_COMPARE_FALSE:
+ err = WERR_DS_COMPARE_FALSE;
+ break;
+ case LDB_ERR_COMPARE_TRUE:
+ err = WERR_DS_COMPARE_TRUE;
+ break;
+ case LDB_ERR_AUTH_METHOD_NOT_SUPPORTED:
+ err = WERR_DS_AUTH_METHOD_NOT_SUPPORTED;
+ break;
+ case LDB_ERR_STRONG_AUTH_REQUIRED:
+ err = WERR_DS_STRONG_AUTH_REQUIRED;
+ break;
+ case LDB_ERR_REFERRAL:
+ err = WERR_DS_REFERRAL;
+ break;
+ case LDB_ERR_ADMIN_LIMIT_EXCEEDED:
+ err = WERR_DS_ADMIN_LIMIT_EXCEEDED;
+ break;
+ case LDB_ERR_UNSUPPORTED_CRITICAL_EXTENSION:
+ err = WERR_DS_UNAVAILABLE_CRIT_EXTENSION;
+ break;
+ case LDB_ERR_CONFIDENTIALITY_REQUIRED:
+ err = WERR_DS_CONFIDENTIALITY_REQUIRED;
+ break;
+ case LDB_ERR_SASL_BIND_IN_PROGRESS:
+ err = WERR_DS_BUSY;
+ break;
+ case LDB_ERR_NO_SUCH_ATTRIBUTE:
+ err = WERR_DS_NO_ATTRIBUTE_OR_VALUE;
+ break;
+ case LDB_ERR_UNDEFINED_ATTRIBUTE_TYPE:
+ err = WERR_DS_ATTRIBUTE_TYPE_UNDEFINED;
+ break;
+ case LDB_ERR_INAPPROPRIATE_MATCHING:
+ err = WERR_DS_INAPPROPRIATE_MATCHING;
+ break;
+ case LDB_ERR_CONSTRAINT_VIOLATION:
+ err = WERR_DS_CONSTRAINT_VIOLATION;
+ break;
+ case LDB_ERR_ATTRIBUTE_OR_VALUE_EXISTS:
+ err = WERR_DS_ATTRIBUTE_OR_VALUE_EXISTS;
+ break;
+ case LDB_ERR_INVALID_ATTRIBUTE_SYNTAX:
+ err = WERR_DS_INVALID_ATTRIBUTE_SYNTAX;
+ break;
+ case LDB_ERR_NO_SUCH_OBJECT:
+ err = WERR_DS_NO_SUCH_OBJECT;
+ break;
+ case LDB_ERR_ALIAS_PROBLEM:
+ err = WERR_DS_ALIAS_PROBLEM;
+ break;
+ case LDB_ERR_INVALID_DN_SYNTAX:
+ err = WERR_DS_INVALID_DN_SYNTAX;
+ break;
+ case LDB_ERR_ALIAS_DEREFERENCING_PROBLEM:
+ err = WERR_DS_ALIAS_DEREF_PROBLEM;
+ break;
+ case LDB_ERR_INAPPROPRIATE_AUTHENTICATION:
+ err = WERR_DS_INAPPROPRIATE_AUTH;
+ break;
+ case LDB_ERR_INVALID_CREDENTIALS:
+ err = WERR_ACCESS_DENIED;
+ break;
+ case LDB_ERR_INSUFFICIENT_ACCESS_RIGHTS:
+ err = WERR_DS_INSUFF_ACCESS_RIGHTS;
+ break;
+ case LDB_ERR_BUSY:
+ err = WERR_DS_BUSY;
+ break;
+ case LDB_ERR_UNAVAILABLE:
+ err = WERR_DS_UNAVAILABLE;
+ break;
+ case LDB_ERR_UNWILLING_TO_PERFORM:
+ err = WERR_DS_UNWILLING_TO_PERFORM;
+ break;
+ case LDB_ERR_LOOP_DETECT:
+ err = WERR_DS_LOOP_DETECT;
+ break;
+ case LDB_ERR_NAMING_VIOLATION:
+ err = WERR_DS_NAMING_VIOLATION;
+ break;
+ case LDB_ERR_OBJECT_CLASS_VIOLATION:
+ err = WERR_DS_OBJ_CLASS_VIOLATION;
+ break;
+ case LDB_ERR_NOT_ALLOWED_ON_NON_LEAF:
+ err = WERR_DS_CANT_ON_NON_LEAF;
+ break;
+ case LDB_ERR_NOT_ALLOWED_ON_RDN:
+ err = WERR_DS_CANT_ON_RDN;
+ break;
+ case LDB_ERR_ENTRY_ALREADY_EXISTS:
+ err = WERR_DS_OBJ_STRING_NAME_EXISTS;
+ break;
+ case LDB_ERR_OBJECT_CLASS_MODS_PROHIBITED:
+ err = WERR_DS_CANT_MOD_OBJ_CLASS;
+ break;
+ case LDB_ERR_AFFECTS_MULTIPLE_DSAS:
+ err = WERR_DS_AFFECTS_MULTIPLE_DSAS;
+ break;
+ default:
+ err = WERR_DS_GENERIC_ERROR;
+ break;
+ }
+
+ *errstring = talloc_asprintf(mem_ctx, "%08X: %s", W_ERROR_V(err),
+ add_err_string != NULL ? add_err_string : ldb_strerror(ldb_err));
+
+ /* result is 1:1 for now */
+ return ldb_err;
+}
+
+/*
+ connect to the sam database
+*/
+int ldapsrv_backend_Init(struct ldapsrv_connection *conn,
+ char **errstring)
+{
+ int ret = samdb_connect_url(conn,
+ conn->connection->event.ctx,
+ conn->lp_ctx,
+ conn->session_info,
+ conn->global_catalog ? LDB_FLG_RDONLY : 0,
+ "sam.ldb",
+ conn->connection->remote_address,
+ &conn->ldb,
+ errstring);
+ if (ret != LDB_SUCCESS) {
+ return ret;
+ }
+
+ if (conn->server_credentials) {
+ struct gensec_security *gensec_security = NULL;
+ const char **sasl_mechs = NULL;
+ NTSTATUS status;
+
+ status = samba_server_gensec_start(conn,
+ conn->connection->event.ctx,
+ conn->connection->msg_ctx,
+ conn->lp_ctx,
+ conn->server_credentials,
+ "ldap",
+ &gensec_security);
+ if (!NT_STATUS_IS_OK(status)) {
+ DBG_ERR("samba_server_gensec_start failed: %s\n",
+ nt_errstr(status));
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ /* ldb can have a different lifetime to conn, so we
+ need to ensure that sasl_mechs lives as long as the
+ ldb does */
+ sasl_mechs = gensec_security_sasl_names(gensec_security,
+ conn->ldb);
+ TALLOC_FREE(gensec_security);
+ if (sasl_mechs == NULL) {
+ DBG_ERR("Failed to get sasl mechs!\n");
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ ldb_set_opaque(conn->ldb, "supportedSASLMechanisms", sasl_mechs);
+ }
+
+ return LDB_SUCCESS;
+}
+
+struct ldapsrv_reply *ldapsrv_init_reply(struct ldapsrv_call *call, uint8_t type)
+{
+ struct ldapsrv_reply *reply;
+
+ reply = talloc_zero(call, struct ldapsrv_reply);
+ if (!reply) {
+ return NULL;
+ }
+ reply->msg = talloc_zero(reply, struct ldap_message);
+ if (reply->msg == NULL) {
+ talloc_free(reply);
+ return NULL;
+ }
+
+ reply->msg->messageid = call->request->messageid;
+ reply->msg->type = type;
+ reply->msg->controls = NULL;
+
+ return reply;
+}
+
+/*
+ * Encode a reply to an LDAP client as ASN.1, free the original memory
+ */
+static NTSTATUS ldapsrv_encode(TALLOC_CTX *mem_ctx,
+ struct ldapsrv_reply *reply)
+{
+ bool bret = ldap_encode(reply->msg,
+ samba_ldap_control_handlers(),
+ &reply->blob,
+ mem_ctx);
+ TALLOC_FREE(reply->msg);
+ if (!bret) {
+ DEBUG(0,("Failed to encode ldap reply of type %d: "
+ "ldap_encode() failed\n",
+ reply->msg->type));
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ talloc_set_name_const(reply->blob.data,
+ "Outgoing, encoded single LDAP reply");
+
+ return NT_STATUS_OK;
+}
+
+/*
+ * Queue a reply (encoding it also), even if it would exceed the
+ * limit. This allows the error packet with LDAP_SIZE_LIMIT_EXCEEDED
+ * to be sent
+ */
+static NTSTATUS ldapsrv_queue_reply_forced(struct ldapsrv_call *call,
+ struct ldapsrv_reply *reply)
+{
+ NTSTATUS status = ldapsrv_encode(call, reply);
+
+ if (NT_STATUS_IS_OK(status)) {
+ DLIST_ADD_END(call->replies, reply);
+ }
+ return status;
+}
+
+/*
+ * Queue a reply (encoding it also) but check we do not send more than
+ * LDAP_SERVER_MAX_REPLY_SIZE of responses as a way to limit the
+ * amount of data a client can make us allocate.
+ */
+NTSTATUS ldapsrv_queue_reply(struct ldapsrv_call *call, struct ldapsrv_reply *reply)
+{
+ NTSTATUS status = ldapsrv_encode(call, reply);
+
+ if (!NT_STATUS_IS_OK(status)) {
+ return status;
+ }
+
+ if (call->reply_size > call->reply_size + reply->blob.length
+ || call->reply_size + reply->blob.length > LDAP_SERVER_MAX_REPLY_SIZE) {
+ DBG_WARNING("Refusing to queue LDAP search response size "
+ "of more than %zu bytes\n",
+ LDAP_SERVER_MAX_REPLY_SIZE);
+ TALLOC_FREE(reply->blob.data);
+ return NT_STATUS_FILE_TOO_LARGE;
+ }
+
+ call->reply_size += reply->blob.length;
+
+ DLIST_ADD_END(call->replies, reply);
+
+ return status;
+}
+
+static NTSTATUS ldapsrv_unwilling(struct ldapsrv_call *call, int error)
+{
+ struct ldapsrv_reply *reply;
+ struct ldap_ExtendedResponse *r;
+
+ DEBUG(10,("Unwilling type[%d] id[%d]\n", call->request->type, call->request->messageid));
+
+ reply = ldapsrv_init_reply(call, LDAP_TAG_ExtendedResponse);
+ if (!reply) {
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ r = &reply->msg->r.ExtendedResponse;
+ r->response.resultcode = error;
+ r->response.dn = NULL;
+ r->response.errormessage = NULL;
+ r->response.referral = NULL;
+ r->oid = NULL;
+ r->value = NULL;
+
+ ldapsrv_queue_reply(call, reply);
+ return NT_STATUS_OK;
+}
+
+static int ldapsrv_add_with_controls(struct ldapsrv_call *call,
+ const struct ldb_message *message,
+ struct ldb_control **controls,
+ struct ldb_result *res)
+{
+ struct ldb_context *ldb = call->conn->ldb;
+ struct ldb_request *req;
+ int ret;
+
+ ret = ldb_msg_sanity_check(ldb, message);
+ if (ret != LDB_SUCCESS) {
+ return ret;
+ }
+
+ ret = ldb_build_add_req(&req, ldb, ldb,
+ message,
+ controls,
+ res,
+ ldb_modify_default_callback,
+ NULL);
+
+ if (ret != LDB_SUCCESS) return ret;
+
+ if (call->conn->global_catalog) {
+ return ldb_error(ldb, LDB_ERR_UNWILLING_TO_PERFORM, "modify forbidden on global catalog port");
+ }
+ ldb_request_add_control(req, DSDB_CONTROL_NO_GLOBAL_CATALOG, false, NULL);
+
+ ret = ldb_transaction_start(ldb);
+ if (ret != LDB_SUCCESS) {
+ return ret;
+ }
+
+ if (!call->conn->is_privileged) {
+ ldb_req_mark_untrusted(req);
+ }
+
+ LDB_REQ_SET_LOCATION(req);
+
+ ret = ldb_request(ldb, req);
+ if (ret == LDB_SUCCESS) {
+ ret = ldb_wait(req->handle, LDB_WAIT_ALL);
+ }
+
+ if (ret == LDB_SUCCESS) {
+ ret = ldb_transaction_commit(ldb);
+ }
+ else {
+ ldb_transaction_cancel(ldb);
+ }
+
+ talloc_free(req);
+ return ret;
+}
+
+/* create and execute a modify request */
+static int ldapsrv_mod_with_controls(struct ldapsrv_call *call,
+ const struct ldb_message *message,
+ struct ldb_control **controls,
+ struct ldb_result *res)
+{
+ struct ldb_context *ldb = call->conn->ldb;
+ struct ldb_request *req;
+ int ret;
+
+ ret = ldb_msg_sanity_check(ldb, message);
+ if (ret != LDB_SUCCESS) {
+ return ret;
+ }
+
+ ret = ldb_build_mod_req(&req, ldb, ldb,
+ message,
+ controls,
+ res,
+ ldb_modify_default_callback,
+ NULL);
+
+ if (ret != LDB_SUCCESS) {
+ return ret;
+ }
+
+ if (call->conn->global_catalog) {
+ return ldb_error(ldb, LDB_ERR_UNWILLING_TO_PERFORM, "modify forbidden on global catalog port");
+ }
+ ldb_request_add_control(req, DSDB_CONTROL_NO_GLOBAL_CATALOG, false, NULL);
+
+ ret = ldb_transaction_start(ldb);
+ if (ret != LDB_SUCCESS) {
+ return ret;
+ }
+
+ if (!call->conn->is_privileged) {
+ ldb_req_mark_untrusted(req);
+ }
+
+ LDB_REQ_SET_LOCATION(req);
+
+ ret = ldb_request(ldb, req);
+ if (ret == LDB_SUCCESS) {
+ ret = ldb_wait(req->handle, LDB_WAIT_ALL);
+ }
+
+ if (ret == LDB_SUCCESS) {
+ ret = ldb_transaction_commit(ldb);
+ }
+ else {
+ ldb_transaction_cancel(ldb);
+ }
+
+ talloc_free(req);
+ return ret;
+}
+
+/* create and execute a delete request */
+static int ldapsrv_del_with_controls(struct ldapsrv_call *call,
+ struct ldb_dn *dn,
+ struct ldb_control **controls,
+ struct ldb_result *res)
+{
+ struct ldb_context *ldb = call->conn->ldb;
+ struct ldb_request *req;
+ int ret;
+
+ ret = ldb_build_del_req(&req, ldb, ldb,
+ dn,
+ controls,
+ res,
+ ldb_modify_default_callback,
+ NULL);
+
+ if (ret != LDB_SUCCESS) return ret;
+
+ if (call->conn->global_catalog) {
+ return ldb_error(ldb, LDB_ERR_UNWILLING_TO_PERFORM, "modify forbidden on global catalog port");
+ }
+ ldb_request_add_control(req, DSDB_CONTROL_NO_GLOBAL_CATALOG, false, NULL);
+
+ ret = ldb_transaction_start(ldb);
+ if (ret != LDB_SUCCESS) {
+ return ret;
+ }
+
+ if (!call->conn->is_privileged) {
+ ldb_req_mark_untrusted(req);
+ }
+
+ LDB_REQ_SET_LOCATION(req);
+
+ ret = ldb_request(ldb, req);
+ if (ret == LDB_SUCCESS) {
+ ret = ldb_wait(req->handle, LDB_WAIT_ALL);
+ }
+
+ if (ret == LDB_SUCCESS) {
+ ret = ldb_transaction_commit(ldb);
+ }
+ else {
+ ldb_transaction_cancel(ldb);
+ }
+
+ talloc_free(req);
+ return ret;
+}
+
+static int ldapsrv_rename_with_controls(struct ldapsrv_call *call,
+ struct ldb_dn *olddn,
+ struct ldb_dn *newdn,
+ struct ldb_control **controls,
+ struct ldb_result *res)
+{
+ struct ldb_context *ldb = call->conn->ldb;
+ struct ldb_request *req;
+ int ret;
+
+ ret = ldb_build_rename_req(&req, ldb, ldb,
+ olddn,
+ newdn,
+ controls,
+ res,
+ ldb_modify_default_callback,
+ NULL);
+
+ if (ret != LDB_SUCCESS) return ret;
+
+ if (call->conn->global_catalog) {
+ return ldb_error(ldb, LDB_ERR_UNWILLING_TO_PERFORM, "modify forbidden on global catalog port");
+ }
+ ldb_request_add_control(req, DSDB_CONTROL_NO_GLOBAL_CATALOG, false, NULL);
+
+ ret = ldb_transaction_start(ldb);
+ if (ret != LDB_SUCCESS) {
+ return ret;
+ }
+
+ if (!call->conn->is_privileged) {
+ ldb_req_mark_untrusted(req);
+ }
+
+ LDB_REQ_SET_LOCATION(req);
+
+ ret = ldb_request(ldb, req);
+ if (ret == LDB_SUCCESS) {
+ ret = ldb_wait(req->handle, LDB_WAIT_ALL);
+ }
+
+ if (ret == LDB_SUCCESS) {
+ ret = ldb_transaction_commit(ldb);
+ }
+ else {
+ ldb_transaction_cancel(ldb);
+ }
+
+ talloc_free(req);
+ return ret;
+}
+
+
+
+struct ldapsrv_context {
+ struct ldapsrv_call *call;
+ int extended_type;
+ bool attributesonly;
+ struct ldb_control **controls;
+ size_t count; /* For notificaiton only */
+};
+
+static int ldap_server_search_callback(struct ldb_request *req, struct ldb_reply *ares)
+{
+ struct ldapsrv_context *ctx = talloc_get_type(req->context, struct ldapsrv_context);
+ struct ldapsrv_call *call = ctx->call;
+ struct ldb_context *ldb = call->conn->ldb;
+ unsigned int j;
+ struct ldapsrv_reply *ent_r = NULL;
+ struct ldap_SearchResEntry *ent;
+ int ret;
+ NTSTATUS status;
+
+ if (!ares) {
+ return ldb_request_done(req, LDB_ERR_OPERATIONS_ERROR);
+ }
+ if (ares->error != LDB_SUCCESS) {
+ return ldb_request_done(req, ares->error);
+ }
+
+ switch (ares->type) {
+ case LDB_REPLY_ENTRY:
+ {
+ struct ldb_message *msg = ares->message;
+ ent_r = ldapsrv_init_reply(call, LDAP_TAG_SearchResultEntry);
+ if (ent_r == NULL) {
+ return ldb_oom(ldb);
+ }
+
+ ctx->count++;
+
+ /*
+ * Put the LDAP search response data under ent_r->msg
+ * so we can free that later once encoded
+ */
+ talloc_steal(ent_r->msg, msg);
+
+ ent = &ent_r->msg->r.SearchResultEntry;
+ ent->dn = ldb_dn_get_extended_linearized(ent_r, msg->dn,
+ ctx->extended_type);
+ ent->num_attributes = 0;
+ ent->attributes = NULL;
+ if (msg->num_elements == 0) {
+ goto queue_reply;
+ }
+ ent->num_attributes = msg->num_elements;
+ ent->attributes = talloc_array(ent_r, struct ldb_message_element, ent->num_attributes);
+ if (ent->attributes == NULL) {
+ return ldb_oom(ldb);
+ }
+
+ for (j=0; j < ent->num_attributes; j++) {
+ ent->attributes[j].name = msg->elements[j].name;
+ ent->attributes[j].num_values = 0;
+ ent->attributes[j].values = NULL;
+ if (ctx->attributesonly && (msg->elements[j].num_values == 0)) {
+ continue;
+ }
+ ent->attributes[j].num_values = msg->elements[j].num_values;
+ ent->attributes[j].values = msg->elements[j].values;
+ }
+queue_reply:
+ status = ldapsrv_queue_reply(call, ent_r);
+ if (NT_STATUS_EQUAL(status, NT_STATUS_FILE_TOO_LARGE)) {
+ ret = ldb_request_done(req,
+ LDB_ERR_SIZE_LIMIT_EXCEEDED);
+ ldb_asprintf_errstring(ldb,
+ "LDAP search response size "
+ "limited to %zu bytes\n",
+ LDAP_SERVER_MAX_REPLY_SIZE);
+ } else if (!NT_STATUS_IS_OK(status)) {
+ ret = ldb_request_done(req,
+ ldb_operr(ldb));
+ } else {
+ ret = LDB_SUCCESS;
+ }
+ break;
+ }
+ case LDB_REPLY_REFERRAL:
+ {
+ struct ldap_SearchResRef *ent_ref;
+
+ /*
+ * TODO: This should be handled by the notification
+ * module not here
+ */
+ if (call->notification.busy) {
+ ret = LDB_SUCCESS;
+ break;
+ }
+
+ ent_r = ldapsrv_init_reply(call, LDAP_TAG_SearchResultReference);
+ if (ent_r == NULL) {
+ return ldb_oom(ldb);
+ }
+
+ /*
+ * Put the LDAP referral data under ent_r->msg
+ * so we can free that later once encoded
+ */
+ talloc_steal(ent_r->msg, ares->referral);
+
+ ent_ref = &ent_r->msg->r.SearchResultReference;
+ ent_ref->referral = ares->referral;
+
+ status = ldapsrv_queue_reply(call, ent_r);
+ if (!NT_STATUS_IS_OK(status)) {
+ ret = LDB_ERR_OPERATIONS_ERROR;
+ } else {
+ ret = LDB_SUCCESS;
+ }
+ break;
+ }
+ case LDB_REPLY_DONE:
+ {
+ /*
+ * We don't queue the reply for this one, we let that
+ * happen outside
+ */
+ ctx->controls = talloc_move(ctx, &ares->controls);
+
+ TALLOC_FREE(ares);
+ return ldb_request_done(req, LDB_SUCCESS);
+ }
+ default:
+ /* Doesn't happen */
+ ret = LDB_ERR_OPERATIONS_ERROR;
+ }
+ TALLOC_FREE(ares);
+
+ return ret;
+}
+
+
+static NTSTATUS ldapsrv_SearchRequest(struct ldapsrv_call *call)
+{
+ struct ldap_SearchRequest *req = &call->request->r.SearchRequest;
+ struct ldap_Result *done;
+ struct ldapsrv_reply *done_r;
+ TALLOC_CTX *local_ctx;
+ struct ldapsrv_context *callback_ctx = NULL;
+ struct ldb_context *samdb = talloc_get_type(call->conn->ldb, struct ldb_context);
+ struct ldb_dn *basedn;
+ struct ldb_request *lreq;
+ struct ldb_control *search_control;
+ struct ldb_search_options_control *search_options;
+ struct ldb_control *extended_dn_control;
+ struct ldb_extended_dn_control *extended_dn_decoded = NULL;
+ struct ldb_control *notification_control = NULL;
+ enum ldb_scope scope = LDB_SCOPE_DEFAULT;
+ const char **attrs = NULL;
+ const char *scope_str, *errstr = NULL;
+ int result = -1;
+ int ldb_ret = -1;
+ unsigned int i;
+ int extended_type = 1;
+
+ /*
+ * Warn for searches that are longer than 1/4 of the
+ * search_timeout, being 30sec by default
+ */
+ struct timeval start_time = timeval_current();
+ struct timeval warning_time
+ = timeval_add(&start_time,
+ call->conn->limits.search_timeout / 4,
+ 0);
+
+ local_ctx = talloc_new(call);
+ NT_STATUS_HAVE_NO_MEMORY(local_ctx);
+
+ basedn = ldb_dn_new(local_ctx, samdb, req->basedn);
+ NT_STATUS_HAVE_NO_MEMORY(basedn);
+
+ switch (req->scope) {
+ case LDAP_SEARCH_SCOPE_BASE:
+ scope_str = "BASE";
+ scope = LDB_SCOPE_BASE;
+ break;
+ case LDAP_SEARCH_SCOPE_SINGLE:
+ scope_str = "ONE";
+ scope = LDB_SCOPE_ONELEVEL;
+ break;
+ case LDAP_SEARCH_SCOPE_SUB:
+ scope_str = "SUB";
+ scope = LDB_SCOPE_SUBTREE;
+ break;
+ default:
+ result = LDAP_PROTOCOL_ERROR;
+ map_ldb_error(local_ctx, LDB_ERR_PROTOCOL_ERROR, NULL,
+ &errstr);
+ scope_str = "<Invalid scope>";
+ errstr = talloc_asprintf(local_ctx,
+ "%s. Invalid scope", errstr);
+ goto reply;
+ }
+ DEBUG(10,("SearchRequest: scope: [%s]\n", scope_str));
+
+ if (req->num_attributes >= 1) {
+ attrs = talloc_array(local_ctx, const char *, req->num_attributes+1);
+ NT_STATUS_HAVE_NO_MEMORY(attrs);
+
+ for (i=0; i < req->num_attributes; i++) {
+ DEBUG(10,("SearchRequest: attrs: [%s]\n",req->attributes[i]));
+ attrs[i] = req->attributes[i];
+ }
+ attrs[i] = NULL;
+ }
+
+ DEBUG(5,("ldb_request %s dn=%s filter=%s\n",
+ scope_str, req->basedn, ldb_filter_from_tree(call, req->tree)));
+
+ callback_ctx = talloc_zero(local_ctx, struct ldapsrv_context);
+ NT_STATUS_HAVE_NO_MEMORY(callback_ctx);
+ callback_ctx->call = call;
+ callback_ctx->extended_type = extended_type;
+ callback_ctx->attributesonly = req->attributesonly;
+
+ ldb_ret = ldb_build_search_req_ex(&lreq, samdb, local_ctx,
+ basedn, scope,
+ req->tree, attrs,
+ call->request->controls,
+ callback_ctx,
+ ldap_server_search_callback,
+ NULL);
+
+ if (ldb_ret != LDB_SUCCESS) {
+ goto reply;
+ }
+
+ if (call->conn->global_catalog) {
+ search_control = ldb_request_get_control(lreq, LDB_CONTROL_SEARCH_OPTIONS_OID);
+
+ search_options = NULL;
+ if (search_control) {
+ search_options = talloc_get_type(search_control->data, struct ldb_search_options_control);
+ search_options->search_options |= LDB_SEARCH_OPTION_PHANTOM_ROOT;
+ } else {
+ search_options = talloc(lreq, struct ldb_search_options_control);
+ NT_STATUS_HAVE_NO_MEMORY(search_options);
+ search_options->search_options = LDB_SEARCH_OPTION_PHANTOM_ROOT;
+ ldb_request_add_control(lreq, LDB_CONTROL_SEARCH_OPTIONS_OID, false, search_options);
+ }
+ } else {
+ ldb_request_add_control(lreq, DSDB_CONTROL_NO_GLOBAL_CATALOG, false, NULL);
+ }
+
+ extended_dn_control = ldb_request_get_control(lreq, LDB_CONTROL_EXTENDED_DN_OID);
+
+ if (extended_dn_control) {
+ if (extended_dn_control->data) {
+ extended_dn_decoded = talloc_get_type(extended_dn_control->data, struct ldb_extended_dn_control);
+ extended_type = extended_dn_decoded->type;
+ } else {
+ extended_type = 0;
+ }
+ callback_ctx->extended_type = extended_type;
+ }
+
+ notification_control = ldb_request_get_control(lreq, LDB_CONTROL_NOTIFICATION_OID);
+ if (notification_control != NULL) {
+ const struct ldapsrv_call *pc = NULL;
+ size_t count = 0;
+
+ for (pc = call->conn->pending_calls; pc != NULL; pc = pc->next) {
+ count += 1;
+ }
+
+ if (count >= call->conn->limits.max_notifications) {
+ DEBUG(10,("SearchRequest: error MaxNotificationPerConn\n"));
+ result = map_ldb_error(local_ctx,
+ LDB_ERR_ADMIN_LIMIT_EXCEEDED,
+ "MaxNotificationPerConn reached",
+ &errstr);
+ goto reply;
+ }
+
+ /*
+ * For now we need to do periodic retries on our own.
+ * As the dsdb_notification module will return after each run.
+ */
+ call->notification.busy = true;
+ }
+
+ {
+ const char *scheme = NULL;
+ switch (call->conn->referral_scheme) {
+ case LDAP_REFERRAL_SCHEME_LDAPS:
+ scheme = "ldaps";
+ break;
+ default:
+ scheme = "ldap";
+ }
+ ldb_ret = ldb_set_opaque(
+ samdb,
+ LDAP_REFERRAL_SCHEME_OPAQUE,
+ discard_const_p(char *, scheme));
+ if (ldb_ret != LDB_SUCCESS) {
+ goto reply;
+ }
+ }
+
+ {
+ time_t timeout = call->conn->limits.search_timeout;
+
+ if (timeout == 0
+ || (req->timelimit != 0
+ && req->timelimit < timeout))
+ {
+ timeout = req->timelimit;
+ }
+ ldb_set_timeout(samdb, lreq, timeout);
+ }
+
+ if (!call->conn->is_privileged) {
+ ldb_req_mark_untrusted(lreq);
+ }
+
+ LDB_REQ_SET_LOCATION(lreq);
+
+ ldb_ret = ldb_request(samdb, lreq);
+
+ if (ldb_ret != LDB_SUCCESS) {
+ goto reply;
+ }
+
+ ldb_ret = ldb_wait(lreq->handle, LDB_WAIT_ALL);
+
+ if (ldb_ret == LDB_SUCCESS) {
+ if (call->notification.busy) {
+ /* Move/Add it to the end */
+ DLIST_DEMOTE(call->conn->pending_calls, call);
+ call->notification.generation =
+ call->conn->service->notification.generation;
+
+ if (callback_ctx->count != 0) {
+ call->notification.generation += 1;
+ ldapsrv_notification_retry_setup(call->conn->service,
+ true);
+ }
+
+ talloc_free(local_ctx);
+ return NT_STATUS_OK;
+ }
+ }
+
+reply:
+
+ /*
+ * This looks like duplicated code - because it is - but
+ * otherwise the work in the parameters will be done
+ * regardless, this way the functions only execute when the
+ * log level is set.
+ *
+ * The basedn is re-obtained as a string to escape it
+ */
+ if ((req->timelimit == 0 || call->conn->limits.search_timeout < req->timelimit)
+ && ldb_ret == LDB_ERR_TIME_LIMIT_EXCEEDED) {
+ struct dom_sid_buf sid_buf;
+ DBG_WARNING("MaxQueryDuration(%d) timeout exceeded "
+ "in SearchRequest by %s from %s filter: [%s] "
+ "basedn: [%s] "
+ "scope: [%s]\n",
+ call->conn->limits.search_timeout,
+ dom_sid_str_buf(&call->conn->session_info->security_token->sids[0],
+ &sid_buf),
+ tsocket_address_string(call->conn->connection->remote_address,
+ call),
+ ldb_filter_from_tree(call, req->tree),
+ ldb_dn_get_extended_linearized(call, basedn, 1),
+ scope_str);
+ for (i=0; i < req->num_attributes; i++) {
+ DBG_WARNING("MaxQueryDuration timeout exceeded attrs: [%s]\n",
+ req->attributes[i]);
+ }
+
+ } else if (timeval_expired(&warning_time)) {
+ struct dom_sid_buf sid_buf;
+ DBG_NOTICE("Long LDAP Query: Duration was %.2fs, "
+ "MaxQueryDuration(%d)/4 == %d "
+ "in SearchRequest by %s from %s filter: [%s] "
+ "basedn: [%s] "
+ "scope: [%s] "
+ "result: %s\n",
+ timeval_elapsed(&start_time),
+ call->conn->limits.search_timeout,
+ call->conn->limits.search_timeout / 4,
+ dom_sid_str_buf(&call->conn->session_info->security_token->sids[0],
+ &sid_buf),
+ tsocket_address_string(call->conn->connection->remote_address,
+ call),
+ ldb_filter_from_tree(call, req->tree),
+ ldb_dn_get_extended_linearized(call, basedn, 1),
+ scope_str,
+ ldb_strerror(ldb_ret));
+ for (i=0; i < req->num_attributes; i++) {
+ DBG_NOTICE("Long LDAP Query attrs: [%s]\n",
+ req->attributes[i]);
+ }
+ } else {
+ struct dom_sid_buf sid_buf;
+ DBG_INFO("LDAP Query: Duration was %.2fs, "
+ "SearchRequest by %s from %s filter: [%s] "
+ "basedn: [%s] "
+ "scope: [%s] "
+ "result: %s\n",
+ timeval_elapsed(&start_time),
+ dom_sid_str_buf(&call->conn->session_info->security_token->sids[0],
+ &sid_buf),
+ tsocket_address_string(call->conn->connection->remote_address,
+ call),
+ ldb_filter_from_tree(call, req->tree),
+ ldb_dn_get_extended_linearized(call, basedn, 1),
+ scope_str,
+ ldb_strerror(ldb_ret));
+ }
+
+ DLIST_REMOVE(call->conn->pending_calls, call);
+ call->notification.busy = false;
+
+ done_r = ldapsrv_init_reply(call, LDAP_TAG_SearchResultDone);
+ NT_STATUS_HAVE_NO_MEMORY(done_r);
+
+ done = &done_r->msg->r.SearchResultDone;
+ done->dn = NULL;
+ done->referral = NULL;
+
+ if (result != -1) {
+ } else if (ldb_ret == LDB_SUCCESS) {
+ if (callback_ctx->controls) {
+ done_r->msg->controls = callback_ctx->controls;
+ talloc_steal(done_r->msg, callback_ctx->controls);
+ }
+ result = LDB_SUCCESS;
+ } else {
+ DEBUG(10,("SearchRequest: error\n"));
+ result = map_ldb_error(local_ctx, ldb_ret, ldb_errstring(samdb),
+ &errstr);
+ }
+
+ done->resultcode = result;
+ done->errormessage = (errstr?talloc_strdup(done_r, errstr):NULL);
+
+ talloc_free(local_ctx);
+
+ return ldapsrv_queue_reply_forced(call, done_r);
+}
+
+static NTSTATUS ldapsrv_ModifyRequest(struct ldapsrv_call *call)
+{
+ struct ldap_ModifyRequest *req = &call->request->r.ModifyRequest;
+ struct ldap_Result *modify_result;
+ struct ldapsrv_reply *modify_reply;
+ TALLOC_CTX *local_ctx;
+ struct ldb_context *samdb = call->conn->ldb;
+ struct ldb_message *msg = NULL;
+ struct ldb_dn *dn;
+ const char *errstr = NULL;
+ int result = LDAP_SUCCESS;
+ int ldb_ret;
+ unsigned int i,j;
+ struct ldb_result *res = NULL;
+
+ DEBUG(10, ("ModifyRequest"));
+ DEBUGADD(10, (" dn: %s\n", req->dn));
+
+ local_ctx = talloc_named(call, 0, "ModifyRequest local memory context");
+ NT_STATUS_HAVE_NO_MEMORY(local_ctx);
+
+ dn = ldb_dn_new(local_ctx, samdb, req->dn);
+ NT_STATUS_HAVE_NO_MEMORY(dn);
+
+ DEBUG(10, ("ModifyRequest: dn: [%s]\n", req->dn));
+
+ msg = ldb_msg_new(local_ctx);
+ NT_STATUS_HAVE_NO_MEMORY(msg);
+
+ msg->dn = dn;
+
+ if (req->num_mods > 0) {
+ msg->num_elements = req->num_mods;
+ msg->elements = talloc_array(msg, struct ldb_message_element, req->num_mods);
+ NT_STATUS_HAVE_NO_MEMORY(msg->elements);
+
+ for (i=0; i < msg->num_elements; i++) {
+ msg->elements[i].name = discard_const_p(char, req->mods[i].attrib.name);
+ msg->elements[i].num_values = 0;
+ msg->elements[i].values = NULL;
+
+ switch (req->mods[i].type) {
+ default:
+ result = LDAP_PROTOCOL_ERROR;
+ map_ldb_error(local_ctx,
+ LDB_ERR_PROTOCOL_ERROR, NULL, &errstr);
+ errstr = talloc_asprintf(local_ctx,
+ "%s. Invalid LDAP_MODIFY_* type", errstr);
+ goto reply;
+ case LDAP_MODIFY_ADD:
+ msg->elements[i].flags = LDB_FLAG_MOD_ADD;
+ break;
+ case LDAP_MODIFY_DELETE:
+ msg->elements[i].flags = LDB_FLAG_MOD_DELETE;
+ break;
+ case LDAP_MODIFY_REPLACE:
+ msg->elements[i].flags = LDB_FLAG_MOD_REPLACE;
+ break;
+ }
+
+ msg->elements[i].num_values = req->mods[i].attrib.num_values;
+ if (msg->elements[i].num_values > 0) {
+ msg->elements[i].values = talloc_array(msg->elements, struct ldb_val,
+ msg->elements[i].num_values);
+ NT_STATUS_HAVE_NO_MEMORY(msg->elements[i].values);
+
+ for (j=0; j < msg->elements[i].num_values; j++) {
+ msg->elements[i].values[j].length = req->mods[i].attrib.values[j].length;
+ msg->elements[i].values[j].data = req->mods[i].attrib.values[j].data;
+ }
+ }
+ }
+ }
+
+reply:
+ modify_reply = ldapsrv_init_reply(call, LDAP_TAG_ModifyResponse);
+ NT_STATUS_HAVE_NO_MEMORY(modify_reply);
+
+ if (result == LDAP_SUCCESS) {
+ res = talloc_zero(local_ctx, struct ldb_result);
+ NT_STATUS_HAVE_NO_MEMORY(res);
+ ldb_ret = ldapsrv_mod_with_controls(call, msg, call->request->controls, res);
+ result = map_ldb_error(local_ctx, ldb_ret, ldb_errstring(samdb),
+ &errstr);
+ }
+
+ modify_result = &modify_reply->msg->r.ModifyResponse;
+ modify_result->dn = NULL;
+ if ((res != NULL) && (res->refs != NULL)) {
+ modify_result->resultcode = map_ldb_error(local_ctx,
+ LDB_ERR_REFERRAL,
+ NULL, &errstr);
+ modify_result->errormessage = (errstr?talloc_strdup(modify_reply, errstr):NULL);
+ modify_result->referral = talloc_strdup(call, *res->refs);
+ } else {
+ modify_result->resultcode = result;
+ modify_result->errormessage = (errstr?talloc_strdup(modify_reply, errstr):NULL);
+ modify_result->referral = NULL;
+ }
+ talloc_free(local_ctx);
+
+ return ldapsrv_queue_reply(call, modify_reply);
+
+}
+
+static NTSTATUS ldapsrv_AddRequest(struct ldapsrv_call *call)
+{
+ struct ldap_AddRequest *req = &call->request->r.AddRequest;
+ struct ldap_Result *add_result;
+ struct ldapsrv_reply *add_reply;
+ TALLOC_CTX *local_ctx;
+ struct ldb_context *samdb = call->conn->ldb;
+ struct ldb_message *msg = NULL;
+ struct ldb_dn *dn;
+ const char *errstr = NULL;
+ int result = LDAP_SUCCESS;
+ int ldb_ret;
+ unsigned int i,j;
+ struct ldb_result *res = NULL;
+
+ DEBUG(10, ("AddRequest"));
+ DEBUGADD(10, (" dn: %s\n", req->dn));
+
+ local_ctx = talloc_named(call, 0, "AddRequest local memory context");
+ NT_STATUS_HAVE_NO_MEMORY(local_ctx);
+
+ dn = ldb_dn_new(local_ctx, samdb, req->dn);
+ NT_STATUS_HAVE_NO_MEMORY(dn);
+
+ DEBUG(10, ("AddRequest: dn: [%s]\n", req->dn));
+
+ msg = talloc(local_ctx, struct ldb_message);
+ NT_STATUS_HAVE_NO_MEMORY(msg);
+
+ msg->dn = dn;
+ msg->num_elements = 0;
+ msg->elements = NULL;
+
+ if (req->num_attributes > 0) {
+ msg->num_elements = req->num_attributes;
+ msg->elements = talloc_array(msg, struct ldb_message_element, msg->num_elements);
+ NT_STATUS_HAVE_NO_MEMORY(msg->elements);
+
+ for (i=0; i < msg->num_elements; i++) {
+ msg->elements[i].name = discard_const_p(char, req->attributes[i].name);
+ msg->elements[i].flags = 0;
+ msg->elements[i].num_values = 0;
+ msg->elements[i].values = NULL;
+
+ if (req->attributes[i].num_values > 0) {
+ msg->elements[i].num_values = req->attributes[i].num_values;
+ msg->elements[i].values = talloc_array(msg->elements, struct ldb_val,
+ msg->elements[i].num_values);
+ NT_STATUS_HAVE_NO_MEMORY(msg->elements[i].values);
+
+ for (j=0; j < msg->elements[i].num_values; j++) {
+ msg->elements[i].values[j].length = req->attributes[i].values[j].length;
+ msg->elements[i].values[j].data = req->attributes[i].values[j].data;
+ }
+ }
+ }
+ }
+
+ add_reply = ldapsrv_init_reply(call, LDAP_TAG_AddResponse);
+ NT_STATUS_HAVE_NO_MEMORY(add_reply);
+
+ if (result == LDAP_SUCCESS) {
+ res = talloc_zero(local_ctx, struct ldb_result);
+ NT_STATUS_HAVE_NO_MEMORY(res);
+ ldb_ret = ldapsrv_add_with_controls(call, msg, call->request->controls, res);
+ result = map_ldb_error(local_ctx, ldb_ret, ldb_errstring(samdb),
+ &errstr);
+ }
+
+ add_result = &add_reply->msg->r.AddResponse;
+ add_result->dn = NULL;
+ if ((res != NULL) && (res->refs != NULL)) {
+ add_result->resultcode = map_ldb_error(local_ctx,
+ LDB_ERR_REFERRAL, NULL,
+ &errstr);
+ add_result->errormessage = (errstr?talloc_strdup(add_reply,errstr):NULL);
+ add_result->referral = talloc_strdup(call, *res->refs);
+ } else {
+ add_result->resultcode = result;
+ add_result->errormessage = (errstr?talloc_strdup(add_reply,errstr):NULL);
+ add_result->referral = NULL;
+ }
+ talloc_free(local_ctx);
+
+ return ldapsrv_queue_reply(call, add_reply);
+
+}
+
+static NTSTATUS ldapsrv_DelRequest(struct ldapsrv_call *call)
+{
+ struct ldap_DelRequest *req = &call->request->r.DelRequest;
+ struct ldap_Result *del_result;
+ struct ldapsrv_reply *del_reply;
+ TALLOC_CTX *local_ctx;
+ struct ldb_context *samdb = call->conn->ldb;
+ struct ldb_dn *dn;
+ const char *errstr = NULL;
+ int result = LDAP_SUCCESS;
+ int ldb_ret;
+ struct ldb_result *res = NULL;
+
+ DEBUG(10, ("DelRequest"));
+ DEBUGADD(10, (" dn: %s\n", req->dn));
+
+ local_ctx = talloc_named(call, 0, "DelRequest local memory context");
+ NT_STATUS_HAVE_NO_MEMORY(local_ctx);
+
+ dn = ldb_dn_new(local_ctx, samdb, req->dn);
+ NT_STATUS_HAVE_NO_MEMORY(dn);
+
+ DEBUG(10, ("DelRequest: dn: [%s]\n", req->dn));
+
+ del_reply = ldapsrv_init_reply(call, LDAP_TAG_DelResponse);
+ NT_STATUS_HAVE_NO_MEMORY(del_reply);
+
+ if (result == LDAP_SUCCESS) {
+ res = talloc_zero(local_ctx, struct ldb_result);
+ NT_STATUS_HAVE_NO_MEMORY(res);
+ ldb_ret = ldapsrv_del_with_controls(call, dn, call->request->controls, res);
+ result = map_ldb_error(local_ctx, ldb_ret, ldb_errstring(samdb),
+ &errstr);
+ }
+
+ del_result = &del_reply->msg->r.DelResponse;
+ del_result->dn = NULL;
+ if ((res != NULL) && (res->refs != NULL)) {
+ del_result->resultcode = map_ldb_error(local_ctx,
+ LDB_ERR_REFERRAL, NULL,
+ &errstr);
+ del_result->errormessage = (errstr?talloc_strdup(del_reply,errstr):NULL);
+ del_result->referral = talloc_strdup(call, *res->refs);
+ } else {
+ del_result->resultcode = result;
+ del_result->errormessage = (errstr?talloc_strdup(del_reply,errstr):NULL);
+ del_result->referral = NULL;
+ }
+
+ talloc_free(local_ctx);
+
+ return ldapsrv_queue_reply(call, del_reply);
+}
+
+static NTSTATUS ldapsrv_ModifyDNRequest(struct ldapsrv_call *call)
+{
+ struct ldap_ModifyDNRequest *req = &call->request->r.ModifyDNRequest;
+ struct ldap_Result *modifydn;
+ struct ldapsrv_reply *modifydn_r;
+ TALLOC_CTX *local_ctx;
+ struct ldb_context *samdb = call->conn->ldb;
+ struct ldb_dn *olddn, *newdn=NULL, *newrdn;
+ struct ldb_dn *parentdn = NULL;
+ const char *errstr = NULL;
+ int result = LDAP_SUCCESS;
+ int ldb_ret;
+ struct ldb_result *res = NULL;
+
+ DEBUG(10, ("ModifyDNRequest"));
+ DEBUGADD(10, (" dn: %s", req->dn));
+ DEBUGADD(10, (" newrdn: %s\n", req->newrdn));
+
+ local_ctx = talloc_named(call, 0, "ModifyDNRequest local memory context");
+ NT_STATUS_HAVE_NO_MEMORY(local_ctx);
+
+ olddn = ldb_dn_new(local_ctx, samdb, req->dn);
+ NT_STATUS_HAVE_NO_MEMORY(olddn);
+
+ newrdn = ldb_dn_new(local_ctx, samdb, req->newrdn);
+ NT_STATUS_HAVE_NO_MEMORY(newrdn);
+
+ DEBUG(10, ("ModifyDNRequest: olddn: [%s]\n", req->dn));
+ DEBUG(10, ("ModifyDNRequest: newrdn: [%s]\n", req->newrdn));
+
+ if (ldb_dn_get_comp_num(newrdn) == 0) {
+ result = LDAP_PROTOCOL_ERROR;
+ map_ldb_error(local_ctx, LDB_ERR_PROTOCOL_ERROR, NULL,
+ &errstr);
+ goto reply;
+ }
+
+ if (ldb_dn_get_comp_num(newrdn) > 1) {
+ result = LDAP_NAMING_VIOLATION;
+ map_ldb_error(local_ctx, LDB_ERR_NAMING_VIOLATION, NULL,
+ &errstr);
+ goto reply;
+ }
+
+ /* we can't handle the rename if we should not remove the old dn */
+ if (!req->deleteolddn) {
+ result = LDAP_UNWILLING_TO_PERFORM;
+ map_ldb_error(local_ctx, LDB_ERR_UNWILLING_TO_PERFORM, NULL,
+ &errstr);
+ errstr = talloc_asprintf(local_ctx,
+ "%s. Old RDN must be deleted", errstr);
+ goto reply;
+ }
+
+ if (req->newsuperior) {
+ DEBUG(10, ("ModifyDNRequest: newsuperior: [%s]\n", req->newsuperior));
+ parentdn = ldb_dn_new(local_ctx, samdb, req->newsuperior);
+ }
+
+ if (!parentdn) {
+ parentdn = ldb_dn_get_parent(local_ctx, olddn);
+ }
+ if (!parentdn) {
+ result = LDAP_NO_SUCH_OBJECT;
+ map_ldb_error(local_ctx, LDB_ERR_NO_SUCH_OBJECT, NULL, &errstr);
+ goto reply;
+ }
+
+ if ( ! ldb_dn_add_child(parentdn, newrdn)) {
+ result = LDAP_OTHER;
+ map_ldb_error(local_ctx, LDB_ERR_OTHER, NULL, &errstr);
+ goto reply;
+ }
+ newdn = parentdn;
+
+reply:
+ modifydn_r = ldapsrv_init_reply(call, LDAP_TAG_ModifyDNResponse);
+ NT_STATUS_HAVE_NO_MEMORY(modifydn_r);
+
+ if (result == LDAP_SUCCESS) {
+ res = talloc_zero(local_ctx, struct ldb_result);
+ NT_STATUS_HAVE_NO_MEMORY(res);
+ ldb_ret = ldapsrv_rename_with_controls(call, olddn, newdn, call->request->controls, res);
+ result = map_ldb_error(local_ctx, ldb_ret, ldb_errstring(samdb),
+ &errstr);
+ }
+
+ modifydn = &modifydn_r->msg->r.ModifyDNResponse;
+ modifydn->dn = NULL;
+ if ((res != NULL) && (res->refs != NULL)) {
+ modifydn->resultcode = map_ldb_error(local_ctx,
+ LDB_ERR_REFERRAL, NULL,
+ &errstr);;
+ modifydn->errormessage = (errstr?talloc_strdup(modifydn_r,errstr):NULL);
+ modifydn->referral = talloc_strdup(call, *res->refs);
+ } else {
+ modifydn->resultcode = result;
+ modifydn->errormessage = (errstr?talloc_strdup(modifydn_r,errstr):NULL);
+ modifydn->referral = NULL;
+ }
+
+ talloc_free(local_ctx);
+
+ return ldapsrv_queue_reply(call, modifydn_r);
+}
+
+static NTSTATUS ldapsrv_CompareRequest(struct ldapsrv_call *call)
+{
+ struct ldap_CompareRequest *req = &call->request->r.CompareRequest;
+ struct ldap_Result *compare;
+ struct ldapsrv_reply *compare_r;
+ TALLOC_CTX *local_ctx;
+ struct ldb_context *samdb = call->conn->ldb;
+ struct ldb_result *res = NULL;
+ struct ldb_dn *dn;
+ const char *attrs[1];
+ const char *errstr = NULL;
+ const char *filter = NULL;
+ int result = LDAP_SUCCESS;
+ int ldb_ret;
+
+ DEBUG(10, ("CompareRequest"));
+ DEBUGADD(10, (" dn: %s\n", req->dn));
+
+ local_ctx = talloc_named(call, 0, "CompareRequest local_memory_context");
+ NT_STATUS_HAVE_NO_MEMORY(local_ctx);
+
+ dn = ldb_dn_new(local_ctx, samdb, req->dn);
+ NT_STATUS_HAVE_NO_MEMORY(dn);
+
+ DEBUG(10, ("CompareRequest: dn: [%s]\n", req->dn));
+ filter = talloc_asprintf(local_ctx, "(%s=%*s)", req->attribute,
+ (int)req->value.length, req->value.data);
+ NT_STATUS_HAVE_NO_MEMORY(filter);
+
+ DEBUGADD(10, ("CompareRequest: attribute: [%s]\n", filter));
+
+ attrs[0] = NULL;
+
+ compare_r = ldapsrv_init_reply(call, LDAP_TAG_CompareResponse);
+ NT_STATUS_HAVE_NO_MEMORY(compare_r);
+
+ if (result == LDAP_SUCCESS) {
+ ldb_ret = ldb_search(samdb, local_ctx, &res,
+ dn, LDB_SCOPE_BASE, attrs, "%s", filter);
+ if (ldb_ret != LDB_SUCCESS) {
+ result = map_ldb_error(local_ctx, ldb_ret,
+ ldb_errstring(samdb), &errstr);
+ DEBUG(10,("CompareRequest: error: %s\n", errstr));
+ } else if (res->count == 0) {
+ DEBUG(10,("CompareRequest: doesn't matched\n"));
+ result = LDAP_COMPARE_FALSE;
+ errstr = NULL;
+ } else if (res->count == 1) {
+ DEBUG(10,("CompareRequest: matched\n"));
+ result = LDAP_COMPARE_TRUE;
+ errstr = NULL;
+ } else if (res->count > 1) {
+ result = LDAP_OTHER;
+ map_ldb_error(local_ctx, LDB_ERR_OTHER, NULL, &errstr);
+ errstr = talloc_asprintf(local_ctx,
+ "%s. Too many objects match!", errstr);
+ DEBUG(10,("CompareRequest: %d results: %s\n", res->count, errstr));
+ }
+ }
+
+ compare = &compare_r->msg->r.CompareResponse;
+ compare->dn = NULL;
+ compare->resultcode = result;
+ compare->errormessage = (errstr?talloc_strdup(compare_r,errstr):NULL);
+ compare->referral = NULL;
+
+ talloc_free(local_ctx);
+
+ return ldapsrv_queue_reply(call, compare_r);
+}
+
+static NTSTATUS ldapsrv_AbandonRequest(struct ldapsrv_call *call)
+{
+ struct ldap_AbandonRequest *req = &call->request->r.AbandonRequest;
+ struct ldapsrv_call *c = NULL;
+ struct ldapsrv_call *n = NULL;
+
+ DEBUG(10, ("AbandonRequest\n"));
+
+ for (c = call->conn->pending_calls; c != NULL; c = n) {
+ n = c->next;
+
+ if (c->request->messageid != req->messageid) {
+ continue;
+ }
+
+ DLIST_REMOVE(call->conn->pending_calls, c);
+ TALLOC_FREE(c);
+ }
+
+ return NT_STATUS_OK;
+}
+
+static NTSTATUS ldapsrv_expired(struct ldapsrv_call *call)
+{
+ struct ldapsrv_reply *reply = NULL;
+ struct ldap_ExtendedResponse *r = NULL;
+
+ DBG_DEBUG("Sending connection expired message\n");
+
+ reply = ldapsrv_init_reply(call, LDAP_TAG_ExtendedResponse);
+ if (reply == NULL) {
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ /*
+ * According to RFC4511 section 4.4.1 this has a msgid of 0
+ */
+ reply->msg->messageid = 0;
+
+ r = &reply->msg->r.ExtendedResponse;
+ r->response.resultcode = LDB_ERR_UNAVAILABLE;
+ r->response.errormessage = "The server has timed out this connection";
+ r->oid = "1.3.6.1.4.1.1466.20036"; /* see rfc4511 section 4.4.1 */
+
+ ldapsrv_queue_reply(call, reply);
+ return NT_STATUS_OK;
+}
+
+NTSTATUS ldapsrv_do_call(struct ldapsrv_call *call)
+{
+ unsigned int i;
+ struct ldap_message *msg = call->request;
+ struct ldapsrv_connection *conn = call->conn;
+ NTSTATUS status;
+ bool expired;
+
+ expired = timeval_expired(&conn->limits.expire_time);
+ if (expired) {
+ status = ldapsrv_expired(call);
+ if (!NT_STATUS_IS_OK(status)) {
+ return status;
+ }
+ return NT_STATUS_NETWORK_SESSION_EXPIRED;
+ }
+
+ /* Check for undecoded critical extensions */
+ for (i=0; msg->controls && msg->controls[i]; i++) {
+ if (!msg->controls_decoded[i] &&
+ msg->controls[i]->critical) {
+ DEBUG(3, ("ldapsrv_do_call: Critical extension %s is not known to this server\n",
+ msg->controls[i]->oid));
+ return ldapsrv_unwilling(call, LDAP_UNAVAILABLE_CRITICAL_EXTENSION);
+ }
+ }
+
+ if (call->conn->authz_logged == false) {
+ bool log = true;
+
+ /*
+ * We do not want to log anonymous access if the query
+ * is just for the rootDSE, or it is a startTLS or a
+ * Bind.
+ *
+ * A rootDSE search could also be done over
+ * CLDAP anonymously for example, so these don't
+ * really count.
+ * Essentially we want to know about
+ * access beyond that normally done prior to a
+ * bind.
+ */
+
+ switch(call->request->type) {
+ case LDAP_TAG_BindRequest:
+ case LDAP_TAG_UnbindRequest:
+ case LDAP_TAG_AbandonRequest:
+ log = false;
+ break;
+ case LDAP_TAG_ExtendedResponse: {
+ struct ldap_ExtendedRequest *req = &call->request->r.ExtendedRequest;
+ if (strcmp(req->oid, LDB_EXTENDED_START_TLS_OID) == 0) {
+ log = false;
+ }
+ break;
+ }
+ case LDAP_TAG_SearchRequest: {
+ struct ldap_SearchRequest *req = &call->request->r.SearchRequest;
+ if (req->scope == LDAP_SEARCH_SCOPE_BASE) {
+ if (req->basedn[0] == '\0') {
+ log = false;
+ }
+ }
+ break;
+ }
+ default:
+ break;
+ }
+
+ if (log) {
+ const char *transport_protection = AUTHZ_TRANSPORT_PROTECTION_NONE;
+ if (call->conn->sockets.active == call->conn->sockets.tls) {
+ transport_protection = AUTHZ_TRANSPORT_PROTECTION_TLS;
+ }
+
+ log_successful_authz_event(call->conn->connection->msg_ctx,
+ call->conn->connection->lp_ctx,
+ call->conn->connection->remote_address,
+ call->conn->connection->local_address,
+ "LDAP",
+ "no bind",
+ transport_protection,
+ call->conn->session_info);
+
+ call->conn->authz_logged = true;
+ }
+ }
+
+ switch(call->request->type) {
+ case LDAP_TAG_BindRequest:
+ return ldapsrv_BindRequest(call);
+ case LDAP_TAG_UnbindRequest:
+ return ldapsrv_UnbindRequest(call);
+ case LDAP_TAG_SearchRequest:
+ return ldapsrv_SearchRequest(call);
+ case LDAP_TAG_ModifyRequest:
+ status = ldapsrv_ModifyRequest(call);
+ break;
+ case LDAP_TAG_AddRequest:
+ status = ldapsrv_AddRequest(call);
+ break;
+ case LDAP_TAG_DelRequest:
+ status = ldapsrv_DelRequest(call);
+ break;
+ case LDAP_TAG_ModifyDNRequest:
+ status = ldapsrv_ModifyDNRequest(call);
+ break;
+ case LDAP_TAG_CompareRequest:
+ return ldapsrv_CompareRequest(call);
+ case LDAP_TAG_AbandonRequest:
+ return ldapsrv_AbandonRequest(call);
+ case LDAP_TAG_ExtendedRequest:
+ status = ldapsrv_ExtendedRequest(call);
+ break;
+ default:
+ return ldapsrv_unwilling(call, LDAP_PROTOCOL_ERROR);
+ }
+
+ if (NT_STATUS_IS_OK(status)) {
+ ldapsrv_notification_retry_setup(call->conn->service, true);
+ }
+
+ return status;
+}