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-rw-r--r--source4/dsdb/common/util_samr.c249
-rw-r--r--source4/dsdb/wscript_build2
2 files changed, 250 insertions, 1 deletions
diff --git a/source4/dsdb/common/util_samr.c b/source4/dsdb/common/util_samr.c
new file mode 100644
index 0000000000..83329d2afc
--- /dev/null
+++ b/source4/dsdb/common/util_samr.c
@@ -0,0 +1,249 @@
+/*
+ Unix SMB/CIFS implementation.
+
+ Helpers to add users and groups to the DB
+
+ Copyright (C) Andrew Tridgell 2004
+ Copyright (C) Volker Lendecke 2004
+ Copyright (C) Andrew Bartlett <abartlet@samba.org> 2004-2010
+ 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 "dsdb/samdb/samdb.h"
+#include "dsdb/common/util.h"
+#include "../libds/common/flags.h"
+
+/* Add a user, SAMR style, including the correct transaction
+ * semantics. Used by the SAMR server and by pdb_samba4 */
+NTSTATUS dsdb_add_user(struct ldb_context *ldb,
+ TALLOC_CTX *mem_ctx,
+ const char *account_name,
+ uint32_t acct_flags,
+ struct dom_sid **sid,
+ struct ldb_dn **dn)
+{
+ const char *name;
+ struct ldb_message *msg;
+ int ret;
+ const char *container, *obj_class=NULL;
+ char *cn_name;
+ int cn_name_len;
+
+ const char *attrs[] = {
+ "objectSid",
+ "userAccountControl",
+ NULL
+ };
+
+ uint32_t user_account_control;
+ struct ldb_dn *account_dn;
+ struct dom_sid *account_sid;
+
+ TALLOC_CTX *tmp_ctx = talloc_new(mem_ctx);
+ NT_STATUS_HAVE_NO_MEMORY(tmp_ctx);
+
+ /*
+ * Start a transaction, so we can query and do a subsequent atomic
+ * modify
+ */
+
+ ret = ldb_transaction_start(ldb);
+ if (ret != LDB_SUCCESS) {
+ DEBUG(0,("Failed to start a transaction for user creation: %s\n",
+ ldb_errstring(ldb)));
+ talloc_free(tmp_ctx);
+ return NT_STATUS_INTERNAL_DB_CORRUPTION;
+ }
+
+ /* check if the user already exists */
+ name = samdb_search_string(ldb, tmp_ctx, NULL,
+ "sAMAccountName",
+ "(&(sAMAccountName=%s)(objectclass=user))",
+ ldb_binary_encode_string(tmp_ctx, account_name));
+ if (name != NULL) {
+ ldb_transaction_cancel(ldb);
+ talloc_free(tmp_ctx);
+ return NT_STATUS_USER_EXISTS;
+ }
+
+ msg = ldb_msg_new(tmp_ctx);
+ if (msg == NULL) {
+ ldb_transaction_cancel(ldb);
+ talloc_free(tmp_ctx);
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ cn_name = talloc_strdup(tmp_ctx, account_name);
+ if (!cn_name) {
+ ldb_transaction_cancel(ldb);
+ talloc_free(tmp_ctx);
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ cn_name_len = strlen(cn_name);
+
+ /* This must be one of these values *only* */
+ if (acct_flags == ACB_NORMAL) {
+ container = "CN=Users";
+ obj_class = "user";
+
+ } else if (acct_flags == ACB_WSTRUST) {
+ if (cn_name[cn_name_len - 1] != '$') {
+ ldb_transaction_cancel(ldb);
+ return NT_STATUS_FOOBAR;
+ }
+ cn_name[cn_name_len - 1] = '\0';
+ container = "CN=Computers";
+ obj_class = "computer";
+ samdb_msg_add_int(ldb, tmp_ctx, msg,
+ "primaryGroupID", DOMAIN_RID_DOMAIN_MEMBERS);
+
+ } else if (acct_flags == ACB_SVRTRUST) {
+ if (cn_name[cn_name_len - 1] != '$') {
+ ldb_transaction_cancel(ldb);
+ return NT_STATUS_FOOBAR;
+ }
+ cn_name[cn_name_len - 1] = '\0';
+ container = "OU=Domain Controllers";
+ obj_class = "computer";
+ samdb_msg_add_int(ldb, tmp_ctx, msg,
+ "primaryGroupID", DOMAIN_RID_DCS);
+ } else {
+ ldb_transaction_cancel(ldb);
+ talloc_free(tmp_ctx);
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+
+ /* add core elements to the ldb_message for the user */
+ msg->dn = ldb_dn_copy(msg, ldb_get_default_basedn(ldb));
+ if ( ! ldb_dn_add_child_fmt(msg->dn, "CN=%s,%s", cn_name, container)) {
+ ldb_transaction_cancel(ldb);
+ talloc_free(tmp_ctx);
+ return NT_STATUS_FOOBAR;
+ }
+
+ samdb_msg_add_string(ldb, tmp_ctx, msg, "sAMAccountName",
+ account_name);
+ samdb_msg_add_string(ldb, tmp_ctx, msg, "objectClass",
+ obj_class);
+
+ /* create the user */
+ ret = ldb_add(ldb, msg);
+ switch (ret) {
+ case LDB_SUCCESS:
+ break;
+ case LDB_ERR_ENTRY_ALREADY_EXISTS:
+ ldb_transaction_cancel(ldb);
+ DEBUG(0,("Failed to create user record %s: %s\n",
+ ldb_dn_get_linearized(msg->dn),
+ ldb_errstring(ldb)));
+ talloc_free(tmp_ctx);
+ return NT_STATUS_USER_EXISTS;
+ case LDB_ERR_UNWILLING_TO_PERFORM:
+ case LDB_ERR_INSUFFICIENT_ACCESS_RIGHTS:
+ ldb_transaction_cancel(ldb);
+ DEBUG(0,("Failed to create user record %s: %s\n",
+ ldb_dn_get_linearized(msg->dn),
+ ldb_errstring(ldb)));
+ talloc_free(tmp_ctx);
+ return NT_STATUS_ACCESS_DENIED;
+ default:
+ ldb_transaction_cancel(ldb);
+ DEBUG(0,("Failed to create user record %s: %s\n",
+ ldb_dn_get_linearized(msg->dn),
+ ldb_errstring(ldb)));
+ talloc_free(tmp_ctx);
+ return NT_STATUS_INTERNAL_DB_CORRUPTION;
+ }
+
+ account_dn = msg->dn;
+
+ /* retrieve the sid and account control bits for the user just created */
+ ret = dsdb_search_one(ldb, tmp_ctx, &msg,
+ account_dn, LDB_SCOPE_BASE, attrs, 0, NULL);
+
+ if (ret != LDB_SUCCESS) {
+ ldb_transaction_cancel(ldb);
+ DEBUG(0,("Can't locate the account we just created %s: %s\n",
+ ldb_dn_get_linearized(account_dn), ldb_errstring(ldb)));
+ talloc_free(tmp_ctx);
+ return NT_STATUS_INTERNAL_DB_CORRUPTION;
+ }
+ account_sid = samdb_result_dom_sid(tmp_ctx, msg, "objectSid");
+ if (account_sid == NULL) {
+ ldb_transaction_cancel(ldb);
+ DEBUG(0,("Apparently we failed to get the objectSid of the just created account record %s\n",
+ ldb_dn_get_linearized(msg->dn)));
+ talloc_free(tmp_ctx);
+ return NT_STATUS_INTERNAL_DB_CORRUPTION;
+ }
+
+ /* Change the account control to be the correct account type.
+ * The default is for a workstation account */
+ user_account_control = samdb_result_uint(msg, "userAccountControl", 0);
+ user_account_control = (user_account_control &
+ ~(UF_NORMAL_ACCOUNT |
+ UF_INTERDOMAIN_TRUST_ACCOUNT |
+ UF_WORKSTATION_TRUST_ACCOUNT |
+ UF_SERVER_TRUST_ACCOUNT));
+ user_account_control |= ds_acb2uf(acct_flags);
+
+ talloc_free(msg);
+ msg = ldb_msg_new(tmp_ctx);
+ if (msg == NULL) {
+ ldb_transaction_cancel(ldb);
+ talloc_free(tmp_ctx);
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ msg->dn = account_dn;
+
+ if (samdb_msg_add_uint(ldb, tmp_ctx, msg,
+ "userAccountControl",
+ user_account_control) != 0) {
+ ldb_transaction_cancel(ldb);
+ talloc_free(tmp_ctx);
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ /* modify the samdb record */
+ ret = dsdb_replace(ldb, msg, 0);
+ if (ret != LDB_SUCCESS) {
+ DEBUG(0,("Failed to modify account record %s to set userAccountControl: %s\n",
+ ldb_dn_get_linearized(msg->dn),
+ ldb_errstring(ldb)));
+ ldb_transaction_cancel(ldb);
+ talloc_free(tmp_ctx);
+
+ /* we really need samdb.c to return NTSTATUS */
+ return NT_STATUS_UNSUCCESSFUL;
+ }
+
+ ret = ldb_transaction_commit(ldb);
+ if (ret != LDB_SUCCESS) {
+ DEBUG(0,("Failed to commit transaction to add and modify account record %s: %s\n",
+ ldb_dn_get_linearized(msg->dn),
+ ldb_errstring(ldb)));
+ talloc_free(tmp_ctx);
+ return NT_STATUS_INTERNAL_DB_CORRUPTION;
+ }
+ *dn = talloc_steal(mem_ctx, account_dn);
+ *sid = talloc_steal(mem_ctx, account_sid);
+ talloc_free(tmp_ctx);
+ return NT_STATUS_OK;
+}
+
diff --git a/source4/dsdb/wscript_build b/source4/dsdb/wscript_build
index 92f056197b..1bf8413acc 100644
--- a/source4/dsdb/wscript_build
+++ b/source4/dsdb/wscript_build
@@ -11,7 +11,7 @@ bld.SAMBA_SUBSYSTEM('SAMDB',
bld.SAMBA_SUBSYSTEM('SAMDB_COMMON',
- source='common/util.c common/dsdb_dn.c common/dsdb_access.c ../../libds/common/flag_mapping.c',
+ source='common/util.c common/util_samr.c common/dsdb_dn.c common/dsdb_access.c ../../libds/common/flag_mapping.c',
autoproto='common/proto.h',
deps='ldb NDR_DRSBLOBS LIBCLI_LDAP_NDR UTIL_LDB LIBCLI_AUTH DSDB_MODULE_HELPERS'
)
generated by cgit (git 2.34.1) at 2024-12-13 22:19:16 +0000