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-rw-r--r--source4/dsdb/repl/replicated_objects.c88
-rw-r--r--source4/dsdb/samdb/ldb_modules/schema_load.c4
2 files changed, 64 insertions, 28 deletions
diff --git a/source4/dsdb/repl/replicated_objects.c b/source4/dsdb/repl/replicated_objects.c
index a8c210fbce..564befe2c1 100644
--- a/source4/dsdb/repl/replicated_objects.c
+++ b/source4/dsdb/repl/replicated_objects.c
@@ -543,8 +543,16 @@ WERROR dsdb_replicated_objects_commit(struct ldb_context *ldb,
WERROR werr;
struct ldb_result *ext_res;
struct dsdb_schema *cur_schema = NULL;
+ struct dsdb_schema *new_schema = NULL;
int ret;
uint64_t seq_num1, seq_num2;
+ bool used_global_schema = false;
+
+ TALLOC_CTX *tmp_ctx = talloc_new(objects);
+ if (!tmp_ctx) {
+ DEBUG(0,("Failed to start talloc\n"));
+ return WERR_NOMEM;
+ }
/* TODO: handle linked attributes */
@@ -561,6 +569,7 @@ WERROR dsdb_replicated_objects_commit(struct ldb_context *ldb,
if (ret != LDB_SUCCESS) {
DEBUG(0,(__location__ " Failed to load partition uSN\n"));
ldb_transaction_cancel(ldb);
+ TALLOC_FREE(tmp_ctx);
return WERR_FOOBAR;
}
@@ -572,7 +581,8 @@ WERROR dsdb_replicated_objects_commit(struct ldb_context *ldb,
*/
if (working_schema) {
/* store current schema so we can fall back in case of failure */
- cur_schema = dsdb_get_schema(ldb, working_schema);
+ cur_schema = dsdb_get_schema(ldb, tmp_ctx);
+ used_global_schema = dsdb_uses_global_schema(ldb);
ret = dsdb_reference_schema(ldb, working_schema, false);
if (ret != LDB_SUCCESS) {
@@ -580,6 +590,7 @@ WERROR dsdb_replicated_objects_commit(struct ldb_context *ldb,
ldb_strerror(ret)));
/* TODO: Map LDB Error to NTSTATUS? */
ldb_transaction_cancel(ldb);
+ TALLOC_FREE(tmp_ctx);
return WERR_INTERNAL_ERROR;
}
}
@@ -587,14 +598,16 @@ WERROR dsdb_replicated_objects_commit(struct ldb_context *ldb,
ret = ldb_extended(ldb, DSDB_EXTENDED_REPLICATED_OBJECTS_OID, objects, &ext_res);
if (ret != LDB_SUCCESS) {
/* restore previous schema */
- if (cur_schema ) {
+ if (used_global_schema) {
+ dsdb_set_global_schema(ldb);
+ } else if (cur_schema) {
dsdb_reference_schema(ldb, cur_schema, false);
- dsdb_make_schema_global(ldb, cur_schema);
}
DEBUG(0,("Failed to apply records: %s: %s\n",
ldb_errstring(ldb), ldb_strerror(ret)));
ldb_transaction_cancel(ldb);
+ TALLOC_FREE(tmp_ctx);
return WERR_FOOBAR;
}
talloc_free(ext_res);
@@ -606,12 +619,14 @@ WERROR dsdb_replicated_objects_commit(struct ldb_context *ldb,
working_schema);
if (!W_ERROR_IS_OK(werr)) {
/* restore previous schema */
- if (cur_schema ) {
+ if (used_global_schema) {
+ dsdb_set_global_schema(ldb);
+ } else if (cur_schema ) {
dsdb_reference_schema(ldb, cur_schema, false);
- dsdb_make_schema_global(ldb, cur_schema);
}
DEBUG(0,("Failed to save updated prefixMap: %s\n",
win_errstr(werr)));
+ TALLOC_FREE(tmp_ctx);
return werr;
}
}
@@ -619,24 +634,28 @@ WERROR dsdb_replicated_objects_commit(struct ldb_context *ldb,
ret = ldb_transaction_prepare_commit(ldb);
if (ret != LDB_SUCCESS) {
/* restore previous schema */
- if (cur_schema ) {
+ if (used_global_schema) {
+ dsdb_set_global_schema(ldb);
+ } else if (cur_schema ) {
dsdb_reference_schema(ldb, cur_schema, false);
- dsdb_make_schema_global(ldb, cur_schema);
}
DEBUG(0,(__location__ " Failed to prepare commit of transaction: %s\n",
ldb_errstring(ldb)));
+ TALLOC_FREE(tmp_ctx);
return WERR_FOOBAR;
}
ret = dsdb_load_partition_usn(ldb, objects->partition_dn, &seq_num2, NULL);
if (ret != LDB_SUCCESS) {
/* restore previous schema */
- if (cur_schema ) {
+ if (used_global_schema) {
+ dsdb_set_global_schema(ldb);
+ } else if (cur_schema ) {
dsdb_reference_schema(ldb, cur_schema, false);
- dsdb_make_schema_global(ldb, cur_schema);
}
DEBUG(0,(__location__ " Failed to load partition uSN\n"));
ldb_transaction_cancel(ldb);
+ TALLOC_FREE(tmp_ctx);
return WERR_FOOBAR;
}
@@ -650,11 +669,13 @@ WERROR dsdb_replicated_objects_commit(struct ldb_context *ldb,
ret = ldb_transaction_commit(ldb);
if (ret != LDB_SUCCESS) {
/* restore previous schema */
- if (cur_schema ) {
+ if (used_global_schema) {
+ dsdb_set_global_schema(ldb);
+ } else if (cur_schema ) {
dsdb_reference_schema(ldb, cur_schema, false);
- dsdb_make_schema_global(ldb, cur_schema);
}
DEBUG(0,(__location__ " Failed to commit transaction\n"));
+ TALLOC_FREE(tmp_ctx);
return WERR_FOOBAR;
}
@@ -668,29 +689,43 @@ WERROR dsdb_replicated_objects_commit(struct ldb_context *ldb,
/* Force a reload */
working_schema->last_refresh = 0;
- cur_schema = dsdb_get_schema(ldb, NULL);
- /* TODO: What we do in case dsdb_get_schema() fail?
- * We can't fallback at this point anymore */
- if (cur_schema) {
- dsdb_make_schema_global(ldb, cur_schema);
+ new_schema = dsdb_get_schema(ldb, tmp_ctx);
+ /* TODO:
+ * If dsdb_get_schema() fails, we just fall back
+ * to what we had. However, the database is probably
+ * unable to operate for other users from this
+ * point... */
+ if (new_schema && used_global_schema) {
+ dsdb_make_schema_global(ldb, new_schema);
+ } else if (used_global_schema) {
+ DEBUG(0,("Failed to re-load schema after commit of transaction\n"));
+ dsdb_set_global_schema(ldb);
+ TALLOC_FREE(tmp_ctx);
+ return WERR_INTERNAL_ERROR;
+ } else {
+ DEBUG(0,("Failed to re-load schema after commit of transaction\n"));
+ dsdb_reference_schema(ldb, cur_schema, false);
+ TALLOC_FREE(tmp_ctx);
+ return WERR_INTERNAL_ERROR;
}
- msg = ldb_msg_new(ldb);
+ msg = ldb_msg_new(tmp_ctx);
if (msg == NULL) {
+ TALLOC_FREE(tmp_ctx);
return WERR_NOMEM;
}
msg->dn = ldb_dn_new(msg, ldb, "");
if (msg->dn == NULL) {
- talloc_free(msg);
+ TALLOC_FREE(tmp_ctx);
return WERR_NOMEM;
}
ret = ldb_msg_add_string(msg, "schemaUpdateNow", "1");
if (ret != LDB_SUCCESS) {
- talloc_free(msg);
+ TALLOC_FREE(tmp_ctx);
return WERR_INTERNAL_ERROR;
}
- ret = ldb_build_mod_req(&req, ldb, ldb,
+ ret = ldb_build_mod_req(&req, ldb, objects,
msg,
LDB_SCOPE_BASE,
NULL,
@@ -698,14 +733,13 @@ WERROR dsdb_replicated_objects_commit(struct ldb_context *ldb,
NULL);
if (ret != LDB_SUCCESS) {
- talloc_free(msg);
+ TALLOC_FREE(tmp_ctx);
return WERR_DS_DRA_INTERNAL_ERROR;
}
ret = ldb_transaction_start(ldb);
if (ret != LDB_SUCCESS) {
- talloc_free(msg);
- talloc_free(req);
+ TALLOC_FREE(tmp_ctx);
DEBUG(0, ("Autotransaction start failed\n"));
return WERR_DS_DRA_INTERNAL_ERROR;
}
@@ -718,14 +752,13 @@ WERROR dsdb_replicated_objects_commit(struct ldb_context *ldb,
if (ret == LDB_SUCCESS) {
ret = ldb_transaction_commit(ldb);
} else {
- DEBUG(0, ("Schema update now failed: %s\n", ldb_strerror(ret)));
+ DEBUG(0, ("Schema update now failed: %s\n", ldb_errstring(ret)));
ldb_transaction_cancel(ldb);
}
- talloc_free(msg);
- talloc_free(req);
if (ret != LDB_SUCCESS) {
- DEBUG(0, ("Commit failed: %s\n", ldb_strerror(ret)));
+ DEBUG(0, ("Commit failed: %s\n", ldb_errstring(ldb)));
+ TALLOC_FREE(tmp_ctx);
return WERR_DS_INTERNAL_FAILURE;
}
}
@@ -734,6 +767,7 @@ WERROR dsdb_replicated_objects_commit(struct ldb_context *ldb,
objects->num_objects, objects->linked_attributes_count,
ldb_dn_get_linearized(objects->partition_dn)));
+ TALLOC_FREE(tmp_ctx);
return WERR_OK;
}
diff --git a/source4/dsdb/samdb/ldb_modules/schema_load.c b/source4/dsdb/samdb/ldb_modules/schema_load.c
index 2521cab367..82ae7d84dd 100644
--- a/source4/dsdb/samdb/ldb_modules/schema_load.c
+++ b/source4/dsdb/samdb/ldb_modules/schema_load.c
@@ -320,7 +320,9 @@ static int dsdb_schema_from_db(struct ldb_module *module, struct ldb_dn *schema_
goto failed;
}
- /* Ensure this module won't go away before the callback */
+ /* Ensure this module won't go away before the callback. This
+ * causes every schema to have the LDB that originally loaded
+ * the first schema as a talloc child. */
if (talloc_reference(*schema, ldb) == NULL) {
ldb_oom(ldb);
ret = LDB_ERR_OPERATIONS_ERROR;
generated by cgit (git 2.34.1) at 2024-11-26 13:07:59 +0000