static int partition_reload_metadata(struct ldb_module *module, struct partition_private_data *data, TALLOC_CTX *mem_ctx, struct ldb_message **_msg)
{
int ret;
- struct ldb_message *msg;
+ struct ldb_message *msg, *module_msg;
struct ldb_result *res;
struct ldb_context *ldb = ldb_module_get_ctx(module);
const char *attrs[] = { "partition", "replicateEntries", "modules", "ldapBackend", NULL };
return ret;
}
- ret = partition_load_modules(ldb, data, msg);
+ /* When used from Samba4, this message is set by the samba4
+ * module, as a fixed value not read from the DB. This avoids
+ * listing modules in the DB */
+ if (data->forced_module_msg) {
+ module_msg = data->forced_module_msg;
+ } else {
+ module_msg = msg;
+ }
+
+ ret = partition_load_modules(ldb, data, module_msg);
if (ret != LDB_SUCCESS) {
return ret;
}
{
int ret;
TALLOC_CTX *mem_ctx = talloc_new(module);
-
+ struct ldb_context *ldb = ldb_module_get_ctx(module);
struct partition_private_data *data;
if (!mem_ctx) {
return LDB_ERR_OPERATIONS_ERROR;
}
+ /* When used from Samba4, this message is set by the samba4
+ * module, as a fixed value not read from the DB. This avoids
+ * listing modules in the DB */
+ data->forced_module_msg = talloc_get_type(
+ ldb_get_opaque(ldb,
+ DSDB_OPAQUE_PARTITION_MODULE_MSG_OPAQUE_NAME),
+ struct ldb_message);
+
/* This loads the partitions */
ret = partition_reload_if_required(module, data);
if (ret != LDB_SUCCESS) {
ret = ldb_mod_register_control(module, LDB_CONTROL_DOMAIN_SCOPE_OID);
if (ret != LDB_SUCCESS) {
- ldb_debug(ldb_module_get_ctx(module), LDB_DEBUG_ERROR,
+ ldb_debug(ldb, LDB_DEBUG_ERROR,
"partition: Unable to register control with rootdse!\n");
return LDB_ERR_OPERATIONS_ERROR;
}
ret = ldb_mod_register_control(module, LDB_CONTROL_SEARCH_OPTIONS_OID);
if (ret != LDB_SUCCESS) {
- ldb_debug(ldb_module_get_ctx(module), LDB_DEBUG_ERROR,
+ ldb_debug(ldb, LDB_DEBUG_ERROR,
"partition: Unable to register control with rootdse!\n");
return LDB_ERR_OPERATIONS_ERROR;
}
--- /dev/null
+/*
+ Samba4 module loading module
+
+ Copyright (C) Andrew Bartlett <abartlet@samba.org> 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/>.
+*/
+
+/*
+ * Name: ldb
+ *
+ * Component: Samba4 module loading module
+ *
+ * Description: Implement a single 'module' in the ldb database,
+ * which loads the remaining modules based on 'choice of configuration' attributes
+ *
+ * This is to avoid forcing a reprovision of the ldb databases when we change the internal structure of the code
+ *
+ * Author: Andrew Bartlett
+ */
+
+#include "includes.h"
+#include "lib/ldb/include/ldb.h"
+#include "lib/ldb/include/ldb_errors.h"
+#include "lib/ldb/include/ldb_module.h"
+#include "lib/ldb/include/ldb_private.h"
+
+#include "dsdb/samdb/ldb_modules/util.h"
+#include "dsdb/samdb/samdb.h"
+
+static int read_at_rootdse_record(struct ldb_context *ldb, struct ldb_module *module, TALLOC_CTX *mem_ctx,
+ struct ldb_message **msg)
+{
+ int ret;
+ static const char *rootdse_attrs[] = { "defaultNamingContext", "configurationNamingContext", "schemaNamingContext", NULL };
+ struct ldb_result *rootdse_res;
+ struct ldb_dn *rootdse_dn;
+ TALLOC_CTX *tmp_ctx = talloc_new(mem_ctx);
+ if (!tmp_ctx) {
+ ldb_oom(ldb);
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ rootdse_dn = ldb_dn_new(tmp_ctx, ldb, "@ROOTDSE");
+ if (!rootdse_dn) {
+ talloc_free(tmp_ctx);
+ ldb_oom(ldb);
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ ret = dsdb_module_search_dn(module, tmp_ctx, &rootdse_res, rootdse_dn, rootdse_attrs, 0);
+ if (ret != LDB_SUCCESS) {
+ talloc_free(tmp_ctx);
+ return ret;
+ }
+
+ talloc_steal(mem_ctx, rootdse_res->msgs);
+ *msg = rootdse_res->msgs[0];
+
+ talloc_free(tmp_ctx);
+
+ return ret;
+}
+
+static int prepare_modules_line(struct ldb_context *ldb,
+ TALLOC_CTX *mem_ctx,
+ const struct ldb_message *rootdse_msg,
+ struct ldb_message *msg, const char *backend_attr,
+ const char *backend_mod, const char **backend_mod_list)
+{
+ int ret;
+ const char **backend_full_list;
+ const char *backend_dn;
+ char *mod_list_string;
+ char *full_string;
+ TALLOC_CTX *tmp_ctx = talloc_new(mem_ctx);
+ if (!tmp_ctx) {
+ ldb_oom(ldb);
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ if (backend_attr) {
+ backend_dn = ldb_msg_find_attr_as_string(rootdse_msg, backend_attr, NULL);
+ if (!backend_dn) {
+ ldb_asprintf_errstring(ldb,
+ "samba_dsdb_init: "
+ "unable to read %s from %s:%s",
+ backend_attr, ldb_dn_get_linearized(rootdse_msg->dn),
+ ldb_errstring(ldb));
+ return LDB_ERR_CONSTRAINT_VIOLATION;
+ }
+ } else {
+ backend_dn = "*";
+ }
+
+ if (backend_mod) {
+ backend_full_list = (const char **)str_list_make_single(tmp_ctx, backend_mod);
+ } else {
+ backend_full_list = (const char **)str_list_make_empty(tmp_ctx);
+ }
+ if (!backend_full_list) {
+ talloc_free(tmp_ctx);
+ ldb_oom(ldb);
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ backend_full_list = str_list_append_const(backend_full_list, backend_mod_list);
+ if (!backend_full_list) {
+ talloc_free(tmp_ctx);
+ ldb_oom(ldb);
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ mod_list_string = str_list_join(tmp_ctx, backend_full_list, ',');
+ if (!mod_list_string) {
+ talloc_free(tmp_ctx);
+ ldb_oom(ldb);
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ full_string = talloc_asprintf(tmp_ctx, "%s:%s", backend_dn, mod_list_string);
+ ret = ldb_msg_add_steal_string(msg, "modules", full_string);
+ talloc_free(tmp_ctx);
+ return ret;
+}
+
+static int samba_dsdb_init(struct ldb_module *module)
+{
+ struct ldb_context *ldb = ldb_module_get_ctx(module);
+ int ret, len, i;
+ TALLOC_CTX *tmp_ctx = talloc_new(module);
+ struct ldb_result *res;
+ struct ldb_message *rootdse_msg, *partition_msg;
+ struct ldb_dn *samba_dsdb_dn;
+ struct ldb_module *backend_module, *module_chain;
+ const char **final_module_list, **reverse_module_list;
+ /*
+ Add modules to the list to activate them by default
+ beware often order is important
+
+ Some Known ordering constraints:
+ - rootdse must be first, as it makes redirects from "" -> cn=rootdse
+ - extended_dn_in must be before objectclass.c, as it resolves the DN
+ - objectclass must be before password_hash, because password_hash checks
+ that the objectclass is of type person (filled in by objectclass
+ module when expanding the objectclass list)
+ - partition must be last
+ - each partition has its own module list then
+
+ The list is presented here as a set of declarations to show the
+ stack visually - the code below then handles the creation of the list
+ based on the parameters loaded from the database.
+ */
+ static const char *modules_list[] = {"resolve_oids",
+ "rootdse",
+ "lazy_commit",
+ "paged_results",
+ "ranged_results",
+ "anr",
+ "server_sort",
+ "asq",
+ "extended_dn_store",
+ "extended_dn_in",
+ "rdn_name",
+ "objectclass",
+ "descriptor",
+ "acl",
+ "samldb",
+ "password_hash",
+ "operational",
+ "kludge_acl",
+ "schema_load",
+ "instancetype",
+ NULL };
+
+ const char *objectguid_module;
+ /* if serverrole == "domain controller": */
+ const char *repl_meta_data = "repl_meta_data";
+ /* else: */
+ const char *objectguid = "objectguid";
+
+ const char **link_modules;
+ static const char *tdb_modules_list[] = {
+ "subtree_rename",
+ "subtree_delete",
+ "linked_attributes",
+ NULL};
+
+ const char *extended_dn_module;
+ const char *extended_dn_module_ldb = "extended_dn_out_ldb";
+ const char *extended_dn_module_fds = "extended_dn_out_ldb";
+ const char *extended_dn_module_openldap = "extended_dn_out_ldb";
+
+ static const char *modules_list2[] = {"show_deleted",
+ "new_partition",
+ "partition",
+ NULL };
+
+ const char **backend_modules;
+ static const char *fedora_ds_backend_modules[] = {
+ "nsuniqueid", "paged_searches", NULL };
+ static const char *openldap_backend_modules[] = {
+ "nsuniqueid", "paged_searches", NULL };
+
+ static const char *samba_dsdb_attrs[] = { "backendType", "serverRole", NULL };
+ const char *backendType, *serverRole;
+
+ if (!tmp_ctx) {
+ ldb_oom(ldb);
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ samba_dsdb_dn = ldb_dn_new(tmp_ctx, ldb, "@SAMBA_DSDB");
+ if (!samba_dsdb_dn) {
+ talloc_free(tmp_ctx);
+ ldb_oom(ldb);
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+#define CHECK_LDB_RET(check_ret) \
+ do { \
+ if (check_ret != LDB_SUCCESS) { \
+ talloc_free(tmp_ctx); \
+ return check_ret; \
+ } \
+ } while (0)
+
+ ret = dsdb_module_search_dn(module, tmp_ctx, &res, samba_dsdb_dn, samba_dsdb_attrs, 0);
+ if (ret != LDB_SUCCESS) {
+ talloc_free(tmp_ctx);
+ return ret;
+ }
+
+ backendType = ldb_msg_find_attr_as_string(res->msgs[0], "backendType", "ldb");
+ serverRole = ldb_msg_find_attr_as_string(res->msgs[0], "serverRole", NULL);
+
+ backend_modules = NULL;
+ if (strcasecmp(backendType, "ldb") == 0) {
+ if (strcasecmp(serverRole, "dc") == 0 || strcasecmp(serverRole, "domain controller") == 0) {
+ objectguid_module = repl_meta_data;
+ } else {
+ objectguid_module = objectguid;
+ }
+ extended_dn_module = extended_dn_module_ldb;
+ link_modules = tdb_modules_list;
+ } else {
+ objectguid_module = NULL;
+ link_modules = NULL;
+ if (strcasecmp(backendType, "fedora-ds")) {
+ backend_modules = fedora_ds_backend_modules;
+ extended_dn_module = extended_dn_module_fds;
+ } else if (strcasecmp(backendType, "openldap")) {
+ backend_modules = openldap_backend_modules;
+ extended_dn_module = extended_dn_module_openldap;
+ }
+ }
+
+#define CHECK_MODULE_LIST \
+ do { \
+ if (!final_module_list) { \
+ talloc_free(tmp_ctx); \
+ ldb_oom(ldb); \
+ return LDB_ERR_OPERATIONS_ERROR; \
+ } \
+ } while (0)
+
+ final_module_list = str_list_copy_const(tmp_ctx, modules_list);
+ CHECK_MODULE_LIST;
+
+ final_module_list = str_list_add_const(final_module_list, objectguid_module);
+ CHECK_MODULE_LIST;
+
+ final_module_list = str_list_append_const(final_module_list, link_modules);
+ CHECK_MODULE_LIST;
+
+ final_module_list = str_list_add_const(final_module_list, extended_dn_module);
+ CHECK_MODULE_LIST;
+
+ final_module_list = str_list_append_const(final_module_list, modules_list2);
+ CHECK_MODULE_LIST;
+
+
+ ret = read_at_rootdse_record(ldb, module, tmp_ctx, &rootdse_msg);
+ CHECK_LDB_RET(ret);
+
+ partition_msg = ldb_msg_new(tmp_ctx);
+ partition_msg->dn = ldb_dn_new(partition_msg, ldb, "@" DSDB_OPAQUE_PARTITION_MODULE_MSG_OPAQUE_NAME);
+
+ ret = prepare_modules_line(ldb, tmp_ctx,
+ rootdse_msg,
+ partition_msg, "defaultNamingContext",
+ "pdc_fsmo", backend_modules);
+ CHECK_LDB_RET(ret);
+
+ ret = prepare_modules_line(ldb, tmp_ctx,
+ rootdse_msg,
+ partition_msg, "configurationNamingContext",
+ "naming_fsmo", backend_modules);
+ CHECK_LDB_RET(ret);
+
+ ret = prepare_modules_line(ldb, tmp_ctx,
+ rootdse_msg,
+ partition_msg, "schemaNamingContext",
+ "schema_data", backend_modules);
+ CHECK_LDB_RET(ret);
+
+ ret = prepare_modules_line(ldb, tmp_ctx,
+ rootdse_msg,
+ partition_msg, NULL,
+ NULL, backend_modules);
+ CHECK_LDB_RET(ret);
+
+ ret = ldb_set_opaque(ldb, DSDB_OPAQUE_PARTITION_MODULE_MSG_OPAQUE_NAME, partition_msg);
+ CHECK_LDB_RET(ret);
+
+ talloc_steal(ldb, partition_msg);
+
+ /* Now prepare the module chain. Oddly, we must give it to ldb_load_modules_list in REVERSE */
+ for (len = 0; final_module_list[len]; len++) { /* noop */};
+
+ reverse_module_list = talloc_array(tmp_ctx, const char *, len+1);
+ if (!reverse_module_list) {
+ talloc_free(tmp_ctx);
+ ldb_oom(ldb);
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+ for (i=0; i < len; i++) {
+ reverse_module_list[i] = final_module_list[(len - 1) - i];
+ }
+ reverse_module_list[i] = NULL;
+
+ /* The backend (at least until the partitions module
+ * reconfigures things) is the next module in the currently
+ * loaded chain */
+ backend_module = module->next;
+ ret = ldb_load_modules_list(ldb, reverse_module_list, backend_module, &module_chain);
+ CHECK_LDB_RET(ret);
+
+ talloc_free(tmp_ctx);
+ /* Set this as the 'next' module, so that we effectivly append it to module chain */
+ module->next = module_chain;
+
+ return ldb_next_init(module);
+}
+
+const struct ldb_module_ops ldb_samba_dsdb_module_ops = {
+ .name = "samba_dsdb",
+ .init_context = samba_dsdb_init,
+};
samdb = Ldb(url=samdb_path, session_info=session_info,
lp=lp, options=["modules:"])
- #Add modules to the list to activate them by default
- #beware often order is important
- #
- # Some Known ordering constraints:
- # - rootdse must be first, as it makes redirects from "" -> cn=rootdse
- # - extended_dn_in must be before objectclass.c, as it resolves the DN
- # - objectclass must be before password_hash, because password_hash checks
- # that the objectclass is of type person (filled in by objectclass
- # module when expanding the objectclass list)
- # - partition must be last
- # - each partition has its own module list then
- modules_list = ["resolve_oids",
- "rootdse",
- "lazy_commit",
- "paged_results",
- "ranged_results",
- "anr",
- "server_sort",
- "asq",
- "extended_dn_store",
- "extended_dn_in",
- "rdn_name",
- "objectclass",
- "descriptor",
- "acl",
- "samldb",
- "password_hash",
- "operational",
- "kludge_acl",
- "schema_load",
- "instancetype"]
- if serverrole == "domain controller":
- objectguid_module = "repl_meta_data"
- else:
- objectguid_module = "objectguid"
- tdb_modules_list = [
- "subtree_rename",
- "subtree_delete",
- "linked_attributes"]
- extended_dn_module = "extended_dn_out_ldb"
- modules_list2 = ["show_deleted",
- "new_partition",
- "partition"]
-
- backend_modules = []
-
ldap_backend_line = "# No LDAP backend"
if provision_backend.type is not "ldb":
ldap_backend_line = "ldapBackend: %s" % provision_backend.ldapi_uri
-
- # The LDAP backends assign the objectGUID on thier own
- objectguid_module = None
- # OpenLDAP and FDS handles subtree renames, so we don't want to do any of these things
- tdb_modules_list = []
-
- if provision_backend.ldap_backend_type == "fedora-ds":
- backend_modules = ["nsuniqueid", "paged_searches"]
- extended_dn_module_list = ["extended_dn_out_fds"];
- elif provision_backend.ldap_backend_type == "openldap":
- backend_modules = ["entryuuid", "paged_searches"]
- extended_dn_module_list = ["extended_dn_out_openldap"]
-
- if objectguid_module is not None:
- modules_list.append(objectguid_module)
-
- for m in tdb_modules_list:
- modules_list.append(m)
-
- modules_list.append(extended_dn_module)
-
- for m in modules_list2:
- modules_list.append(m)
samdb.transaction_start()
try:
"SCHEMADN": ldb.Dn(schema.ldb, names.schemadn).get_casefold(),
"CONFIGDN": ldb.Dn(schema.ldb, names.configdn).get_casefold(),
"DOMAINDN": ldb.Dn(schema.ldb, names.domaindn).get_casefold(),
- "SCHEMADN_MOD": "schema_data",
- "CONFIGDN_MOD": "naming_fsmo",
- "DOMAINDN_MOD": "pdc_fsmo",
- "MODULES_LIST": ",".join(modules_list),
- "BACKEND_MOD": ",".join(backend_modules),
"LDAP_BACKEND_LINE": ldap_backend_line,
})
- samdb.load_ldif_file_add(setup_path("provision_init.ldif"))
+ setup_add_ldif(samdb, setup_path("provision_init.ldif"), {
+ "BACKEND_TYPE": provision_backend.type,
+ "SERVER_ROLE": serverrole
+ })
message("Setting up sam.ldb rootDSE")
setup_samdb_rootdse(samdb, setup_path, names)
git.samba.org / nivanova / samba-autobuild / .git / commitdiff