#include "secrets.h"
#include "param/param.h"
#include "system/filesys.h"
-#include "db_wrap.h"
-#include "lib/ldb/include/ldb.h"
-#include "lib/tdb/include/tdb.h"
-#include "lib/util/util_tdb.h"
+#include "lib/tdb_wrap/tdb_wrap.h"
+#include "lib/ldb-samba/ldb_wrap.h"
+#include <ldb.h>
+#include "../lib/util/util_tdb.h"
+#include "librpc/gen_ndr/ndr_security.h"
#include "dsdb/samdb/samdb.h"
-static struct tdb_wrap *tdb;
-
/**
- * Use a TDB to store an incrementing random seed.
- *
- * Initialised to the current pid, the very first time Samba starts,
- * and incremented by one each time it is needed.
- *
- * @note Not called by systems with a working /dev/urandom.
- */
-static void get_rand_seed(int *new_seed)
-{
- *new_seed = getpid();
- if (tdb) {
- tdb_change_int32_atomic(tdb->tdb, "INFO/random_seed", new_seed, 1);
- }
-}
-
-/* close the secrets database */
-void secrets_shutdown(void)
-{
- talloc_free(tdb);
-}
-
-/* open up the secrets database */
-bool secrets_init(void)
-{
- char *fname;
- uint8_t dummy;
-
- if (tdb)
- return true;
-
- asprintf(&fname, "%s/secrets.tdb", lp_private_dir(global_loadparm));
-
- tdb = tdb_wrap_open(talloc_autofree_context(), fname, 0, TDB_DEFAULT, O_RDWR|O_CREAT, 0600);
-
- if (!tdb) {
- DEBUG(0,("Failed to open %s\n", fname));
- SAFE_FREE(fname);
- return false;
- }
- SAFE_FREE(fname);
-
- /**
- * Set a reseed function for the crypto random generator
- *
- * This avoids a problem where systems without /dev/urandom
- * could send the same challenge to multiple clients
- */
- set_rand_reseed_callback(get_rand_seed);
-
- /* Ensure that the reseed is done now, while we are root, etc */
- generate_random_buffer(&dummy, sizeof(dummy));
-
- return true;
-}
-
-/*
- connect to the schannel ldb
+ connect to the secrets ldb
*/
-struct ldb_context *secrets_db_connect(TALLOC_CTX *mem_ctx)
+struct ldb_context *secrets_db_connect(TALLOC_CTX *mem_ctx,
+ struct loadparm_context *lp_ctx,
+ unsigned int flags)
{
- char *path;
- const char *url;
- struct ldb_context *ldb;
- bool existed;
- const char *init_ldif =
- "dn: @ATTRIBUTES\n" \
- "computerName: CASE_INSENSITIVE\n" \
- "flatname: CASE_INSENSITIVE\n";
-
- url = lp_secrets_url(global_loadparm);
- if (!url || !url[0]) {
- return NULL;
- }
-
- path = private_path(mem_ctx, global_loadparm, url);
- if (!path) {
- return NULL;
- }
-
- existed = file_exist(path);
-
- /* Secrets.ldb *must* always be local. If we call for a
- * system_session() we will recurse */
- ldb = ldb_wrap_connect(mem_ctx, global_loadparm, path, NULL, NULL, 0, NULL);
- talloc_free(path);
- if (!ldb) {
- return NULL;
- }
-
- if (!existed) {
- gendb_add_ldif(ldb, init_ldif);
- }
-
- return ldb;
+ return ldb_wrap_connect(mem_ctx, NULL, lp_ctx, "secrets.ldb",
+ NULL, NULL, flags);
}
+/**
+ * Retrieve the domain SID from the secrets database.
+ * @return pointer to a SID object if the SID could be obtained, NULL otherwise
+ */
struct dom_sid *secrets_get_domain_sid(TALLOC_CTX *mem_ctx,
- const char *domain)
+ struct loadparm_context *lp_ctx,
+ const char *domain,
+ enum netr_SchannelType *sec_channel_type,
+ char **errstring)
{
struct ldb_context *ldb;
- struct ldb_message **msgs;
+ struct ldb_message *msg;
int ldb_ret;
- const char *attrs[] = { "objectSid", NULL };
+ const char *attrs[] = { "objectSid", "secureChannelType", NULL };
struct dom_sid *result = NULL;
+ const struct ldb_val *v;
+ enum ndr_err_code ndr_err;
+
+ *errstring = NULL;
- ldb = secrets_db_connect(mem_ctx);
+ ldb = secrets_db_connect(mem_ctx, lp_ctx);
if (ldb == NULL) {
DEBUG(5, ("secrets_db_connect failed\n"));
return NULL;
}
- ldb_ret = gendb_search(ldb, ldb,
- ldb_dn_new(mem_ctx, ldb, SECRETS_PRIMARY_DOMAIN_DN),
- &msgs, attrs,
- SECRETS_PRIMARY_DOMAIN_FILTER, domain);
+ ldb_ret = dsdb_search_one(ldb, ldb, &msg,
+ ldb_dn_new(mem_ctx, ldb, SECRETS_PRIMARY_DOMAIN_DN),
+ LDB_SCOPE_ONELEVEL,
+ attrs, 0, SECRETS_PRIMARY_DOMAIN_FILTER, domain);
- if (ldb_ret == -1) {
- DEBUG(5, ("Error searching for domain SID for %s: %s",
- domain, ldb_errstring(ldb)));
- talloc_free(ldb);
+ if (ldb_ret != LDB_SUCCESS) {
+ *errstring = talloc_asprintf(mem_ctx, "Failed to find record for %s in %s: %s: %s",
+ domain, (char *) ldb_get_opaque(ldb, "ldb_url"),
+ ldb_strerror(ldb_ret), ldb_errstring(ldb));
return NULL;
}
-
- if (ldb_ret == 0) {
- DEBUG(5, ("Did not find domain record for %s\n", domain));
- talloc_free(ldb);
+ v = ldb_msg_find_ldb_val(msg, "objectSid");
+ if (v == NULL) {
+ *errstring = talloc_asprintf(mem_ctx, "Failed to find a SID on record for %s in %s",
+ domain, (char *) ldb_get_opaque(ldb, "ldb_url"));
return NULL;
}
- if (ldb_ret > 1) {
- DEBUG(5, ("Found more than one (%d) domain records for %s\n",
- ldb_ret, domain));
+ if (sec_channel_type) {
+ int t;
+ t = ldb_msg_find_attr_as_int(msg, "secureChannelType", -1);
+ if (t == -1) {
+ *errstring = talloc_asprintf(mem_ctx, "Failed to find secureChannelType for %s in %s",
+ domain, (char *) ldb_get_opaque(ldb, "ldb_url"));
+ return NULL;
+ }
+ *sec_channel_type = t;
+ }
+
+ result = talloc(mem_ctx, struct dom_sid);
+ if (result == NULL) {
talloc_free(ldb);
return NULL;
}
- result = samdb_result_dom_sid(mem_ctx, msgs[0], "objectSid");
- if (result == NULL) {
- DEBUG(0, ("Domain object for %s does not contain a SID!\n",
- domain));
+ ndr_err = ndr_pull_struct_blob(v, result, result,
+ (ndr_pull_flags_fn_t)ndr_pull_dom_sid);
+ if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
+ *errstring = talloc_asprintf(mem_ctx, "Failed to parse SID on record for %s in %s",
+ domain, (char *) ldb_get_opaque(ldb, "ldb_url"));
+ talloc_free(result);
talloc_free(ldb);
return NULL;
}
return result;
}
+
+char *keytab_name_from_msg(TALLOC_CTX *mem_ctx, struct ldb_context *ldb, struct ldb_message *msg)
+{
+ const char *krb5keytab = ldb_msg_find_attr_as_string(msg, "krb5Keytab", NULL);
+ if (krb5keytab) {
+ return talloc_strdup(mem_ctx, krb5keytab);
+ } else {
+ char *file_keytab;
+ char *relative_path;
+ const char *privateKeytab = ldb_msg_find_attr_as_string(msg, "privateKeytab", NULL);
+ if (!privateKeytab) {
+ return NULL;
+ }
+
+ relative_path = ldb_relative_path(ldb, mem_ctx, privateKeytab);
+ if (!relative_path) {
+ return NULL;
+ }
+ file_keytab = talloc_asprintf(mem_ctx, "FILE:%s", relative_path);
+ talloc_free(relative_path);
+ return file_keytab;
+ }
+ return NULL;
+}
+
git.samba.org / metze / samba / wip.git / blobdiff