*/
#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 <ldb.h>
+#include <ldb_errors.h>
+#include <ldb_module.h>
#include "dsdb/samdb/ldb_modules/util.h"
#include "dsdb/samdb/samdb.h"
+#include "librpc/ndr/libndr.h"
+#include "auth/credentials/credentials.h"
+#include "param/secrets.h"
+#include "lib/ldb-samba/ldb_wrap.h"
static int read_at_rootdse_record(struct ldb_context *ldb, struct ldb_module *module, TALLOC_CTX *mem_ctx,
- struct ldb_message **msg)
+ struct ldb_message **msg, struct ldb_request *parent)
{
int ret;
static const char *rootdse_attrs[] = { "defaultNamingContext", "configurationNamingContext", "schemaNamingContext", NULL };
struct ldb_dn *rootdse_dn;
TALLOC_CTX *tmp_ctx = talloc_new(mem_ctx);
if (!tmp_ctx) {
- ldb_oom(ldb);
- return LDB_ERR_OPERATIONS_ERROR;
+ return ldb_oom(ldb);
}
rootdse_dn = ldb_dn_new(tmp_ctx, ldb, "@ROOTDSE");
if (!rootdse_dn) {
talloc_free(tmp_ctx);
- ldb_oom(ldb);
- return LDB_ERR_OPERATIONS_ERROR;
+ return ldb_oom(ldb);
}
- ret = dsdb_module_search_dn(module, tmp_ctx, &rootdse_res, rootdse_dn, rootdse_attrs, 0);
+ ret = dsdb_module_search_dn(module, tmp_ctx, &rootdse_res, rootdse_dn,
+ rootdse_attrs, DSDB_FLAG_NEXT_MODULE, parent);
if (ret != LDB_SUCCESS) {
talloc_free(tmp_ctx);
return ret;
char *full_string;
TALLOC_CTX *tmp_ctx = talloc_new(mem_ctx);
if (!tmp_ctx) {
- ldb_oom(ldb);
- return LDB_ERR_OPERATIONS_ERROR;
+ return ldb_oom(ldb);
}
if (backend_attr) {
}
if (backend_mod) {
- backend_full_list = (const char **)str_list_make_single(tmp_ctx, backend_mod);
+ char **b = str_list_make_single(tmp_ctx, backend_mod);
+ backend_full_list = discard_const_p(const char *, b);
} else {
- backend_full_list = (const char **)str_list_make_empty(tmp_ctx);
+ char **b = str_list_make_empty(tmp_ctx);
+ backend_full_list = discard_const_p(const char *, b);
}
if (!backend_full_list) {
talloc_free(tmp_ctx);
- ldb_oom(ldb);
- return LDB_ERR_OPERATIONS_ERROR;
+ return ldb_oom(ldb);
}
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;
+ return ldb_oom(ldb);
}
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;
+ return ldb_oom(ldb);
}
full_string = talloc_asprintf(tmp_ctx, "%s:%s", backend_dn, mod_list_string);
return ret;
}
+/*
+ * Force overwrite of the credentials with those
+ * specified in secrets.ldb, to connect across the
+ * ldapi socket to an LDAP backend
+ */
+
+static int set_ldap_credentials(struct ldb_context *ldb, bool use_external)
+{
+ const char *secrets_ldb_path, *sam_ldb_path;
+ char *private_dir, *p, *error_string;
+ struct ldb_context *secrets_ldb;
+ struct cli_credentials *cred;
+ struct loadparm_context *lp_ctx = ldb_get_opaque(ldb, "loadparm");
+ TALLOC_CTX *tmp_ctx = talloc_new(ldb);
+
+ if (!tmp_ctx) {
+ return ldb_oom(ldb);
+ }
+
+ cred = cli_credentials_init(ldb);
+ if (!cred) {
+ talloc_free(tmp_ctx);
+ return ldb_oom(ldb);
+ }
+ cli_credentials_set_anonymous(cred);
+ if (use_external) {
+ cli_credentials_set_forced_sasl_mech(cred, "EXTERNAL");
+ } else {
+ cli_credentials_set_forced_sasl_mech(cred, "DIGEST-MD5");
+
+ /*
+ * We don't want to use krb5 to talk to our samdb - recursion
+ * here would be bad, and this account isn't in the KDC
+ * anyway
+ */
+ cli_credentials_set_kerberos_state(cred, CRED_DONT_USE_KERBEROS);
+
+ /*
+ * Work out where *our* secrets.ldb is. It must be in
+ * the same directory as sam.ldb
+ */
+ sam_ldb_path = (const char *)ldb_get_opaque(ldb, "ldb_url");
+ if (!sam_ldb_path) {
+ talloc_free(tmp_ctx);
+ return ldb_operr(ldb);
+ }
+ if (strncmp("tdb://", sam_ldb_path, 6) == 0) {
+ sam_ldb_path += 6;
+ }
+ private_dir = talloc_strdup(tmp_ctx, sam_ldb_path);
+ p = strrchr(private_dir, '/');
+ if (p) {
+ *p = '\0';
+ } else {
+ private_dir = talloc_strdup(tmp_ctx, ".");
+ }
+
+ secrets_ldb_path = talloc_asprintf(private_dir, "tdb://%s/secrets.ldb",
+ private_dir);
+
+ if (!secrets_ldb_path) {
+ talloc_free(tmp_ctx);
+ return ldb_oom(ldb);
+ }
+
+ /*
+ * Now that we have found the location, connect to
+ * secrets.ldb so we can read the SamDB Credentials
+ * record
+ */
+ secrets_ldb = ldb_wrap_connect(tmp_ctx, NULL, lp_ctx, secrets_ldb_path,
+ NULL, NULL, 0);
+
+ if (!NT_STATUS_IS_OK(cli_credentials_set_secrets(cred, NULL, secrets_ldb, NULL,
+ SECRETS_LDAP_FILTER, &error_string))) {
+ ldb_asprintf_errstring(ldb, "Failed to read LDAP backend password from %s", secrets_ldb_path);
+ talloc_free(tmp_ctx);
+ return LDB_ERR_STRONG_AUTH_REQUIRED;
+ }
+ }
+
+ /*
+ * Finally overwrite any supplied credentials with
+ * these ones, as only secrets.ldb contains the magic
+ * credentials to talk on the ldapi socket
+ */
+ if (ldb_set_opaque(ldb, "credentials", cred)) {
+ talloc_free(tmp_ctx);
+ return ldb_operr(ldb);
+ }
+ talloc_free(tmp_ctx);
+ return LDB_SUCCESS;
+}
+
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_message *rootdse_msg = NULL, *partition_msg;
+ struct ldb_dn *samba_dsdb_dn, *partition_dn;
struct ldb_module *backend_module, *module_chain;
const char **final_module_list, **reverse_module_list;
/*
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)
+ - objectclass must be before password_hash and samldb since these LDB
+ modules require the expanded "objectClass" list
+ - objectclass must be before descriptor and acl, as both assume that
+ objectClass values are sorted
+ - objectclass_attrs must be behind operational in order to see all
+ attributes (the operational module protects and therefore
+ suppresses per default some important ones)
- partition must be last
- each partition has its own module list then
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",
+ static const char *modules_list1[] = {"resolve_oids",
"rootdse",
+ "schema_load",
"lazy_commit",
+ "dirsync",
"paged_results",
"ranged_results",
"anr",
"server_sort",
"asq",
"extended_dn_store",
- "extended_dn_in",
- "rdn_name",
- "objectclass",
+ NULL };
+ /* extended_dn_in or extended_dn_in_openldap goes here */
+ static const char *modules_list1a[] = {"objectclass",
"descriptor",
"acl",
+ "aclread",
"samldb",
"password_hash",
"operational",
- "kludge_acl",
- "schema_load",
"instancetype",
+ "objectclass_attrs",
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 *fedora_ds_modules[] = {
+ "rdn_name", NULL };
+ static const char *openldap_modules[] = {
+ NULL };
static const char *tdb_modules_list[] = {
- "subtree_rename",
+ "rdn_name",
"subtree_delete",
+ "repl_meta_data",
+ "subtree_rename",
"linked_attributes",
NULL};
const char *extended_dn_module_ldb = "extended_dn_out_ldb";
const char *extended_dn_module_fds = "extended_dn_out_fds";
const char *extended_dn_module_openldap = "extended_dn_out_openldap";
+ const char *extended_dn_in_module = "extended_dn_in";
- static const char *modules_list2[] = {"show_deleted",
+ static const char *modules_list2[] = {"dns_notify",
+ "show_deleted",
"new_partition",
"partition",
NULL };
const char **backend_modules;
static const char *fedora_ds_backend_modules[] = {
- "nsuniqueid", "paged_searches", NULL };
+ "nsuniqueid", "paged_searches", "simple_dn", NULL };
static const char *openldap_backend_modules[] = {
- "entryuuid", "paged_searches", NULL };
+ "entryuuid", "simple_dn", NULL };
- static const char *samba_dsdb_attrs[] = { "backendType", "serverRole", NULL };
- const char *backendType, *serverRole;
+ static const char *samba_dsdb_attrs[] = { "backendType", NULL };
+ static const char *partition_attrs[] = { "ldapBackend", NULL };
+ const char *backendType, *backendUrl;
+ bool use_sasl_external = false;
if (!tmp_ctx) {
- ldb_oom(ldb);
- return LDB_ERR_OPERATIONS_ERROR;
+ return ldb_oom(ldb);
+ }
+
+ ret = ldb_register_samba_handlers(ldb);
+ if (ret != LDB_SUCCESS) {
+ talloc_free(tmp_ctx);
+ return ret;
}
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;
+ return ldb_oom(ldb);
+ }
+
+ partition_dn = ldb_dn_new(tmp_ctx, ldb, DSDB_PARTITION_DN);
+ if (!partition_dn) {
+ talloc_free(tmp_ctx);
+ return ldb_oom(ldb);
}
#define CHECK_LDB_RET(check_ret) \
} \
} while (0)
- ret = dsdb_module_search_dn(module, tmp_ctx, &res, samba_dsdb_dn, samba_dsdb_attrs, 0);
- if (ret != LDB_SUCCESS) {
+ ret = dsdb_module_search_dn(module, tmp_ctx, &res, samba_dsdb_dn,
+ samba_dsdb_attrs, DSDB_FLAG_NEXT_MODULE, NULL);
+ if (ret == LDB_ERR_NO_SUCH_OBJECT) {
+ backendType = "ldb";
+ } else if (ret == LDB_SUCCESS) {
+ backendType = ldb_msg_find_attr_as_string(res->msgs[0], "backendType", "ldb");
+ } else {
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;
+ struct cli_credentials *cred;
+ bool is_ldapi = false;
+
+ ret = dsdb_module_search_dn(module, tmp_ctx, &res, partition_dn,
+ partition_attrs, DSDB_FLAG_NEXT_MODULE, NULL);
+ if (ret == LDB_SUCCESS) {
+ backendUrl = ldb_msg_find_attr_as_string(res->msgs[0], "ldapBackend", "ldapi://");
+ if (!strncasecmp(backendUrl, "ldapi://", sizeof("ldapi://")-1)) {
+ is_ldapi = true;
+ }
+ } else if (ret != LDB_ERR_NO_SUCH_OBJECT) {
+ talloc_free(tmp_ctx);
+ return ret;
+ }
if (strcasecmp(backendType, "fedora-ds") == 0) {
+ link_modules = fedora_ds_modules;
backend_modules = fedora_ds_backend_modules;
extended_dn_module = extended_dn_module_fds;
} else if (strcasecmp(backendType, "openldap") == 0) {
+ link_modules = openldap_modules;
backend_modules = openldap_backend_modules;
extended_dn_module = extended_dn_module_openldap;
+ extended_dn_in_module = "extended_dn_in_openldap";
+ if (is_ldapi) {
+ use_sasl_external = true;
+ }
+ } else {
+ return ldb_error(ldb, LDB_ERR_OPERATIONS_ERROR, "invalid backend type");
+ }
+ ret = ldb_set_opaque(ldb, "readOnlySchema", (void*)1);
+ if (ret != LDB_SUCCESS) {
+ ldb_set_errstring(ldb, "Failed to set readOnlySchema opaque");
+ }
+
+ cred = ldb_get_opaque(ldb, "credentials");
+ if (!cred || !cli_credentials_authentication_requested(cred)) {
+ ret = set_ldap_credentials(ldb, use_sasl_external);
+ if (ret != LDB_SUCCESS) {
+ return ret;
+ }
}
}
do { \
if (!final_module_list) { \
talloc_free(tmp_ctx); \
- ldb_oom(ldb); \
- return LDB_ERR_OPERATIONS_ERROR; \
+ return ldb_oom(ldb); \
} \
} while (0)
- final_module_list = str_list_copy_const(tmp_ctx, modules_list);
+ final_module_list = str_list_copy_const(tmp_ctx, modules_list1);
+ CHECK_MODULE_LIST;
+
+ final_module_list = str_list_add_const(final_module_list, extended_dn_in_module);
CHECK_MODULE_LIST;
- final_module_list = str_list_add_const(final_module_list, objectguid_module);
+ final_module_list = str_list_append_const(final_module_list, modules_list1a);
CHECK_MODULE_LIST;
final_module_list = str_list_append_const(final_module_list, link_modules);
CHECK_MODULE_LIST;
- ret = read_at_rootdse_record(ldb, module, tmp_ctx, &rootdse_msg);
+ ret = read_at_rootdse_record(ldb, module, tmp_ctx, &rootdse_msg, NULL);
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",
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;
+ return ldb_oom(ldb);
}
for (i=0; i < len; i++) {
reverse_module_list[i] = final_module_list[(len - 1) - i];
/* 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);
+ backend_module = ldb_module_next(module);
+ ret = ldb_module_load_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;
+ ldb_module_set_next(module, module_chain);
return ldb_next_init(module);
}
-const struct ldb_module_ops ldb_samba_dsdb_module_ops = {
+static const struct ldb_module_ops ldb_samba_dsdb_module_ops = {
.name = "samba_dsdb",
.init_context = samba_dsdb_init,
};
+
+int ldb_samba_dsdb_module_init(const char *version)
+{
+ LDB_MODULE_CHECK_VERSION(version);
+ return ldb_register_module(&ldb_samba_dsdb_module_ops);
+}
git.samba.org / obnox / samba / samba-obnox.git / blobdiff