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-rw-r--r--source4/lib/ldb-samba/ldb_wrap.c365
1 files changed, 0 insertions, 365 deletions
diff --git a/source4/lib/ldb-samba/ldb_wrap.c b/source4/lib/ldb-samba/ldb_wrap.c
deleted file mode 100644
index 66213bf288..0000000000
--- a/source4/lib/ldb-samba/ldb_wrap.c
+++ /dev/null
@@ -1,365 +0,0 @@
-/*
- Unix SMB/CIFS implementation.
-
- LDB wrap functions
-
- Copyright (C) Andrew Tridgell 2004-2009
-
- 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/>.
-*/
-
-/*
- the stupidity of the unix fcntl locking design forces us to never
- allow a database file to be opened twice in the same process. These
- wrappers provide convenient access to a tdb or ldb, taking advantage
- of talloc destructors to ensure that only a single open is done
-*/
-
-#include "includes.h"
-#include "lib/events/events.h"
-#include <ldb.h>
-#include <ldb_errors.h>
-#include "lib/ldb-samba/ldif_handlers.h"
-#include "ldb_wrap.h"
-#include "dsdb/samdb/samdb.h"
-#include "param/param.h"
-#include "../lib/util/dlinklist.h"
-#include "../lib/tdb_compat/tdb_compat.h"
-
-/*
- this is used to catch debug messages from ldb
-*/
-static void ldb_wrap_debug(void *context, enum ldb_debug_level level,
- const char *fmt, va_list ap) PRINTF_ATTRIBUTE(3,0);
-
-static void ldb_wrap_debug(void *context, enum ldb_debug_level level,
- const char *fmt, va_list ap)
-{
- int samba_level = -1;
- char *s = NULL;
- switch (level) {
- case LDB_DEBUG_FATAL:
- samba_level = 0;
- break;
- case LDB_DEBUG_ERROR:
- samba_level = 1;
- break;
- case LDB_DEBUG_WARNING:
- samba_level = 2;
- break;
- case LDB_DEBUG_TRACE:
- samba_level = 5;
- break;
-
- };
- vasprintf(&s, fmt, ap);
- if (!s) return;
- DEBUG(samba_level, ("ldb: %s\n", s));
- free(s);
-}
-
-
-/*
- connecting to a ldb can be a relatively expensive operation because
- of the schema and partition loads. We keep a list of open ldb
- contexts here, and try to re-use when possible.
-
- This means callers of ldb_wrap_connect() must use talloc_unlink() or
- the free of a parent to destroy the context
- */
-static struct ldb_wrap {
- struct ldb_wrap *next, *prev;
- struct ldb_wrap_context {
- /* the context is what we use to tell if two ldb
- * connections are exactly equivalent
- */
- const char *url;
- struct tevent_context *ev;
- struct loadparm_context *lp_ctx;
- struct auth_session_info *session_info;
- struct cli_credentials *credentials;
- unsigned int flags;
- } context;
- struct ldb_context *ldb;
-} *ldb_wrap_list;
-
-/*
- free a ldb_wrap structure
- */
-static int ldb_wrap_destructor(struct ldb_wrap *w)
-{
- DLIST_REMOVE(ldb_wrap_list, w);
- return 0;
-}
-
-/*
- * The casefolder for s4's LDB databases - Unicode-safe
- */
-char *wrap_casefold(void *context, void *mem_ctx, const char *s, size_t n)
-{
- return strupper_talloc_n(mem_ctx, s, n);
-}
-
-
- struct ldb_context *samba_ldb_init(TALLOC_CTX *mem_ctx,
- struct tevent_context *ev,
- struct loadparm_context *lp_ctx,
- struct auth_session_info *session_info,
- struct cli_credentials *credentials)
-{
- struct ldb_context *ldb;
- int ret;
-
- ldb = ldb_init(mem_ctx, ev);
- if (ldb == NULL) {
- return NULL;
- }
-
- ldb_set_modules_dir(ldb, modules_path(ldb, "ldb"));
-
- ldb_set_debug(ldb, ldb_wrap_debug, NULL);
-
- ldb_set_utf8_fns(ldb, NULL, wrap_casefold);
-
- if (session_info) {
- if (ldb_set_opaque(ldb, "sessionInfo", session_info)) {
- talloc_free(ldb);
- return NULL;
- }
- }
-
- if (credentials) {
- if (ldb_set_opaque(ldb, "credentials", credentials)) {
- talloc_free(ldb);
- return NULL;
- }
- }
-
- if (ldb_set_opaque(ldb, "loadparm", lp_ctx)) {
- talloc_free(ldb);
- return NULL;
- }
-
- /* This must be done before we load the schema, as these
- * handlers for objectSid and objectGUID etc must take
- * precedence over the 'binary attribute' declaration in the
- * schema */
- ret = ldb_register_samba_handlers(ldb);
- if (ret != LDB_SUCCESS) {
- talloc_free(ldb);
- return NULL;
- }
-
- /* we usually want Samba databases to be private. If we later
- find we need one public, we will need to add a parameter to
- ldb_wrap_connect() */
- ldb_set_create_perms(ldb, 0600);
-
- return ldb;
-}
-
- struct ldb_context *ldb_wrap_find(const char *url,
- struct tevent_context *ev,
- struct loadparm_context *lp_ctx,
- struct auth_session_info *session_info,
- struct cli_credentials *credentials,
- unsigned int flags)
-{
- struct ldb_wrap *w;
- /* see if we can re-use an existing ldb */
- for (w=ldb_wrap_list; w; w=w->next) {
- if (w->context.ev == ev &&
- w->context.lp_ctx == lp_ctx &&
- w->context.session_info == session_info &&
- w->context.credentials == credentials &&
- w->context.flags == flags &&
- (w->context.url == url || strcmp(w->context.url, url) == 0))
- return w->ldb;
- }
-
- return NULL;
-}
-
-int samba_ldb_connect(struct ldb_context *ldb, struct loadparm_context *lp_ctx,
- const char *url, unsigned int flags)
-{
- int ret;
- char *real_url = NULL;
-
- /* allow admins to force non-sync ldb for all databases */
- if (lpcfg_parm_bool(lp_ctx, NULL, "ldb", "nosync", false)) {
- flags |= LDB_FLG_NOSYNC;
- }
-
- if (DEBUGLVL(10)) {
- flags |= LDB_FLG_ENABLE_TRACING;
- }
-
- real_url = lpcfg_private_path(ldb, lp_ctx, url);
- if (real_url == NULL) {
- return LDB_ERR_OPERATIONS_ERROR;
- }
-
- ret = ldb_connect(ldb, real_url, flags, NULL);
-
- if (ret != LDB_SUCCESS) {
- return ret;
- }
-
- /* setup for leak detection */
- ldb_set_opaque(ldb, "wrap_url", real_url);
-
- return LDB_SUCCESS;
-}
-
- bool ldb_wrap_add(const char *url, struct tevent_context *ev,
- struct loadparm_context *lp_ctx,
- struct auth_session_info *session_info,
- struct cli_credentials *credentials,
- unsigned int flags,
- struct ldb_context *ldb)
-{
- struct ldb_wrap *w;
- struct ldb_wrap_context c;
-
- /* add to the list of open ldb contexts */
- w = talloc(ldb, struct ldb_wrap);
- if (w == NULL) {
- return false;
- }
-
- c.url = url;
- c.ev = ev;
- c.lp_ctx = lp_ctx;
- c.session_info = session_info;
- c.credentials = credentials;
- c.flags = flags;
-
- w->context = c;
- w->context.url = talloc_strdup(w, url);
- if (w->context.url == NULL) {
- return false;
- }
-
- if (session_info) {
- /* take a reference to the session_info, as it is
- * possible for the ldb to live longer than the
- * session_info. This happens when a DRS DsBind call
- * reuses a handle, but the original connection is
- * shutdown. The token for the new connection is still
- * valid, so we need the session_info to remain valid for
- * ldb modules to use
- */
- if (talloc_reference(w, session_info) == NULL) {
- return false;
- }
- }
-
- w->ldb = ldb;
-
- DLIST_ADD(ldb_wrap_list, w);
-
- talloc_set_destructor(w, ldb_wrap_destructor);
-
- return true;
-}
-
-
-/*
- wrapped connection to a ldb database
- to close just talloc_free() the returned ldb_context
-
- TODO: We need an error_string parameter
- */
- struct ldb_context *ldb_wrap_connect(TALLOC_CTX *mem_ctx,
- struct tevent_context *ev,
- struct loadparm_context *lp_ctx,
- const char *url,
- struct auth_session_info *session_info,
- struct cli_credentials *credentials,
- unsigned int flags)
-{
- struct ldb_context *ldb;
- int ret;
-
- ldb = ldb_wrap_find(url, ev, lp_ctx, session_info, credentials, flags);
- if (ldb != NULL)
- return talloc_reference(mem_ctx, ldb);
-
- ldb = samba_ldb_init(mem_ctx, ev, lp_ctx, session_info, credentials);
-
- if (ldb == NULL)
- return NULL;
-
- ret = samba_ldb_connect(ldb, lp_ctx, url, flags);
- if (ret != LDB_SUCCESS) {
- talloc_free(ldb);
- return NULL;
- }
-
- if (!ldb_wrap_add(url, ev, lp_ctx, session_info, credentials, flags, ldb)) {
- talloc_free(ldb);
- return NULL;
- }
-
- DEBUG(3,("ldb_wrap open of %s\n", url));
-
- return ldb;
-}
-
-/*
- when we fork() we need to make sure that any open ldb contexts have
- any open transactions cancelled
- */
- void ldb_wrap_fork_hook(void)
-{
- struct ldb_wrap *w;
-
- for (w=ldb_wrap_list; w; w=w->next) {
- if (ldb_transaction_cancel_noerr(w->ldb) != LDB_SUCCESS) {
- smb_panic("Failed to cancel child transactions\n");
- }
- }
-
- if (tdb_reopen_all(1) == -1) {
- smb_panic("tdb_reopen_all failed\n");
- }
-}
-
- char *ldb_relative_path(struct ldb_context *ldb,
- TALLOC_CTX *mem_ctx,
- const char *name)
-{
- const char *base_url =
- (const char *)ldb_get_opaque(ldb, "ldb_url");
- char *path, *p, *full_name;
- if (name == NULL) {
- return NULL;
- }
- if (strncmp("tdb://", base_url, 6) == 0) {
- base_url = base_url+6;
- }
- path = talloc_strdup(mem_ctx, base_url);
- if (path == NULL) {
- return NULL;
- }
- if ( (p = strrchr(path, '/')) != NULL) {
- p[0] = '\0';
- full_name = talloc_asprintf(mem_ctx, "%s/%s", path, name);
- } else {
- full_name = talloc_asprintf(mem_ctx, "./%s", name);
- }
- talloc_free(path);
- return full_name;
-}
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