summaryrefslogtreecommitdiff
path: root/source4/lib/ldb
diff options
context:
space:
mode:
authorJelmer Vernooij <jelmer@samba.org>2006-03-05 16:05:26 +0000
committerGerald (Jerry) Carter <jerry@samba.org>2007-10-10 13:52:14 -0500
commit5d0aa16dfcf3047a52d3dd7e12ffb704a9725e83 (patch)
tree8a9ae36a29652dec9dbb5138ba3c0dee86b8e32d /source4/lib/ldb
parent8edf29e8ef4d886321a6e8ec3902065641d34f40 (diff)
downloadsamba-5d0aa16dfcf3047a52d3dd7e12ffb704a9725e83.tar.gz
samba-5d0aa16dfcf3047a52d3dd7e12ffb704a9725e83.tar.bz2
samba-5d0aa16dfcf3047a52d3dd7e12ffb704a9725e83.zip
r13839: Use registration mechanism for backends as well (in the same sense
my previous patch added it for modules). This is the next step towards LDB backends and modules as run-time loadable .so files. (This used to be commit fb2f70de4f6c4a9b13ad590cb4d3a9c858cede49)
Diffstat (limited to 'source4/lib/ldb')
-rw-r--r--source4/lib/ldb/common/ldb.c61
-rw-r--r--source4/lib/ldb/common/ldb_modules.c16
-rw-r--r--source4/lib/ldb/config.mk3
-rw-r--r--source4/lib/ldb/include/ldb_private.h21
-rw-r--r--source4/lib/ldb/ldb_ildap/ldb_ildap.c6
-rw-r--r--source4/lib/ldb/ldb_ldap/ldb_ldap.c6
-rw-r--r--source4/lib/ldb/ldb_sqlite3/ldb_sqlite3.c6
-rw-r--r--source4/lib/ldb/ldb_tdb/ldb_tdb.c7
8 files changed, 88 insertions, 38 deletions
diff --git a/source4/lib/ldb/common/ldb.c b/source4/lib/ldb/common/ldb.c
index 9d8783324c..b664ba680d 100644
--- a/source4/lib/ldb/common/ldb.c
+++ b/source4/lib/ldb/common/ldb.c
@@ -55,6 +55,40 @@ struct ldb_context *ldb_init(void *mem_ctx)
return ldb;
}
+static struct ldb_backend {
+ const char *name;
+ ldb_connect_fn connect_fn;
+ struct ldb_backend *prev, *next;
+} *ldb_backends = NULL;
+/*
+ register a new ldb backend
+*/
+int ldb_register_backend(const char *url_prefix, ldb_connect_fn connectfn)
+{
+ struct ldb_backend *backend = talloc(talloc_autofree_context(), struct ldb_backend);
+
+ /* Maybe check for duplicity here later on? */
+
+ backend->name = talloc_strdup(backend, url_prefix);
+ backend->connect_fn = connectfn;
+ DLIST_ADD(ldb_backends, backend);
+
+ return LDB_SUCCESS;
+}
+
+static ldb_connect_fn ldb_find_backend(const char *url)
+{
+ struct ldb_backend *backend;
+
+ for (backend = ldb_backends; backend; backend = backend->next) {
+ if (strncmp(backend->name, url, strlen(backend->name)) == 0) {
+ return backend->connect_fn;
+ }
+ }
+
+ return NULL;
+}
+
/*
connect to a database. The URL can either be one of the following forms
ldb://path
@@ -68,31 +102,22 @@ struct ldb_context *ldb_init(void *mem_ctx)
int ldb_connect(struct ldb_context *ldb, const char *url, unsigned int flags, const char *options[])
{
int ret;
+ ldb_connect_fn fn;
- if (strncmp(url, "tdb:", 4) == 0 ||
- strchr(url, ':') == NULL) {
- ret = ltdb_connect(ldb, url, flags, options);
+ if (strchr(url, ':') != NULL) {
+ fn = ldb_find_backend(url);
+ } else {
+ /* Default to tdb */
+ fn = ldb_find_backend("tdb:");
}
-#if HAVE_ILDAP
- else if (strncmp(url, "ldap", 4) == 0) {
- ret = ildb_connect(ldb, url, flags, options);
- }
-#elif HAVE_LDAP
- else if (strncmp(url, "ldap", 4) == 0) {
- ret = lldb_connect(ldb, url, flags, options);
- }
-#endif
-#if HAVE_SQLITE3
- else if (strncmp(url, "sqlite:", 7) == 0) {
- ret = lsqlite3_connect(ldb, url, flags, options);
- }
-#endif
- else {
+ if (fn == NULL) {
ldb_debug(ldb, LDB_DEBUG_FATAL, "Unable to find backend for '%s'\n", url);
return LDB_ERR_OTHER;
}
+ ret = fn(ldb, url, flags, options);
+
if (ret != LDB_SUCCESS) {
ldb_debug(ldb, LDB_DEBUG_ERROR, "Failed to connect to '%s'\n", url);
return ret;
diff --git a/source4/lib/ldb/common/ldb_modules.c b/source4/lib/ldb/common/ldb_modules.c
index 17c5231e54..53394e7047 100644
--- a/source4/lib/ldb/common/ldb_modules.c
+++ b/source4/lib/ldb/common/ldb_modules.c
@@ -126,10 +126,24 @@ static const struct ldb_module_ops *ldb_find_module_ops(const char *name)
return NULL;
}
-
+#ifdef HAVE_LDAP
+#define LDAP_INIT ldb_ldap_init,
+#else
+#define LDAP_INIT
+#endif
+
+#ifdef HAVE_SQLITE3
+#define SQLITE3_INIT ldb_sqlite3_init,
+#else
+#define SQLITE3_INIT
+#endif
+
#ifndef STATIC_LIBLDB_MODULES
#define STATIC_LIBLDB_MODULES \
{ \
+ LDAP_INIT \
+ SQLITE3_INIT \
+ ldb_tdb_init, \
ldb_schema_init, \
ldb_operational_init, \
ldb_rdn_name_init, \
diff --git a/source4/lib/ldb/config.mk b/source4/lib/ldb/config.mk
index 82b98fa123..fe7b03251d 100644
--- a/source4/lib/ldb/config.mk
+++ b/source4/lib/ldb/config.mk
@@ -80,6 +80,7 @@ OBJ_FILES = \
[MODULE::libldb_ildap]
SUBSYSTEM = LIBLDB
OUTPUT_TYPE = MERGEDOBJ
+INIT_FUNCTION = ldb_ildap_init
OBJ_FILES = \
ldb_ildap/ldb_ildap.o
REQUIRED_SUBSYSTEMS = \
@@ -112,6 +113,7 @@ OBJ_FILES = modules/skel.o
[MODULE::libldb_sqlite3]
SUBSYSTEM = LIBLDB
OUTPUT_TYPE = MERGEDOBJ
+INIT_FUNCTION = ldb_sqlite3_init
OBJ_FILES = \
ldb_sqlite3/ldb_sqlite3.o
REQUIRED_SUBSYSTEMS = \
@@ -124,6 +126,7 @@ NOPROTO = YES
# Start MODULE libldb_tdb
[MODULE::libldb_tdb]
SUBSYSTEM = LIBLDB
+INIT_FUNCTION = ldb_tdb_init
OUTPUT_TYPE = MERGEDOBJ
OBJ_FILES = \
ldb_tdb/ldb_tdb.o \
diff --git a/source4/lib/ldb/include/ldb_private.h b/source4/lib/ldb/include/ldb_private.h
index ba6823559f..52ea0f833d 100644
--- a/source4/lib/ldb/include/ldb_private.h
+++ b/source4/lib/ldb/include/ldb_private.h
@@ -64,6 +64,7 @@ struct ldb_module_ops {
int (*async_wait)(struct ldb_module *, struct ldb_async_handle *, enum ldb_async_wait_type);
};
+typedef int (*ldb_connect_fn) (struct ldb_context *ldb, const char *url, unsigned int flags, const char *options[]);
/*
schema related information needed for matching rules
@@ -133,6 +134,7 @@ void ldb_set_errstring(struct ldb_context *ldb, char *err_string);
void ldb_reset_err_string(struct ldb_context *ldb);
int ldb_register_module(const struct ldb_module_ops *);
+int ldb_register_backend(const char *url_prefix, ldb_connect_fn);
/* The following definitions come from lib/ldb/common/ldb_debug.c */
void ldb_debug(struct ldb_context *ldb, enum ldb_debug_level level, const char *fmt, ...) PRINTF_ATTRIBUTE(3, 4);
@@ -142,27 +144,16 @@ void ldb_debug_set(struct ldb_context *ldb, enum ldb_debug_level level,
/* The following definitions come from lib/ldb/common/ldb_ldif.c */
int ldb_should_b64_encode(const struct ldb_val *val);
-int ltdb_connect(struct ldb_context *ldb, const char *url,
- unsigned int flags,
- const char *options[]);
-int lldb_connect(struct ldb_context *ldb, const char *url,
- unsigned int flags,
- const char *options[]);
-int ildb_connect(struct ldb_context *ldb,
- const char *url,
- unsigned int flags,
- const char *options[]);
-int lsqlite3_connect(struct ldb_context *ldb,
- const char *url,
- unsigned int flags,
- const char *options[]);
-
int ldb_objectclass_init(void);
int ldb_operational_init(void);
int ldb_paged_results_init(void);
int ldb_rdn_name_init(void);
int ldb_schema_init(void);
int ldb_sort_init(void);
+int ldb_ldap_init(void);
+int ldb_ildap_init(void);
+int ldb_tdb_init(void);
+int ldb_sqlite3_init(void);
int ldb_match_msg(struct ldb_context *ldb,
struct ldb_message *msg,
diff --git a/source4/lib/ldb/ldb_ildap/ldb_ildap.c b/source4/lib/ldb/ldb_ildap/ldb_ildap.c
index 3467e65bf9..ab37ab7570 100644
--- a/source4/lib/ldb/ldb_ildap/ldb_ildap.c
+++ b/source4/lib/ldb/ldb_ildap/ldb_ildap.c
@@ -987,7 +987,7 @@ static const struct ldb_module_ops ildb_ops = {
/*
connect to the database
*/
-int ildb_connect(struct ldb_context *ldb, const char *url,
+static int ildb_connect(struct ldb_context *ldb, const char *url,
unsigned int flags, const char *options[])
{
struct ildb_private *ildb = NULL;
@@ -1065,3 +1065,7 @@ failed:
return -1;
}
+int ldb_ildap_init(void)
+{
+ return ldb_register_backend("ldap", ildb_connect);
+}
diff --git a/source4/lib/ldb/ldb_ldap/ldb_ldap.c b/source4/lib/ldb/ldb_ldap/ldb_ldap.c
index d671afb953..3a5039ddc0 100644
--- a/source4/lib/ldb/ldb_ldap/ldb_ldap.c
+++ b/source4/lib/ldb/ldb_ldap/ldb_ldap.c
@@ -1042,7 +1042,7 @@ static int lldb_destructor(void *p)
/*
connect to the database
*/
-int lldb_connect(struct ldb_context *ldb,
+static int lldb_connect(struct ldb_context *ldb,
const char *url,
unsigned int flags,
const char *options[])
@@ -1093,3 +1093,7 @@ failed:
return -1;
}
+int ldb_ldap_init(void)
+{
+ return ldb_register_backend("ldap", lldb_connect);
+}
diff --git a/source4/lib/ldb/ldb_sqlite3/ldb_sqlite3.c b/source4/lib/ldb/ldb_sqlite3/ldb_sqlite3.c
index bf6cf0951b..883b21e0b5 100644
--- a/source4/lib/ldb/ldb_sqlite3/ldb_sqlite3.c
+++ b/source4/lib/ldb/ldb_sqlite3/ldb_sqlite3.c
@@ -2070,7 +2070,7 @@ static const struct ldb_module_ops lsqlite3_ops = {
/*
* connect to the database
*/
-int lsqlite3_connect(struct ldb_context *ldb,
+static int lsqlite3_connect(struct ldb_context *ldb,
const char *url,
unsigned int flags,
const char *options[])
@@ -2137,3 +2137,7 @@ failed:
return -1;
}
+int ldb_sqlite3_init(void)
+{
+ return ldb_register_backend("sqlite3", lsqlite3_connect);
+}
diff --git a/source4/lib/ldb/ldb_tdb/ldb_tdb.c b/source4/lib/ldb/ldb_tdb/ldb_tdb.c
index 0825348658..5470fccb97 100644
--- a/source4/lib/ldb/ldb_tdb/ldb_tdb.c
+++ b/source4/lib/ldb/ldb_tdb/ldb_tdb.c
@@ -1033,7 +1033,7 @@ static const struct ldb_module_ops ltdb_ops = {
/*
connect to the database
*/
-int ltdb_connect(struct ldb_context *ldb, const char *url,
+static int ltdb_connect(struct ldb_context *ldb, const char *url,
unsigned int flags, const char *options[])
{
const char *path;
@@ -1094,3 +1094,8 @@ int ltdb_connect(struct ldb_context *ldb, const char *url,
return 0;
}
+
+int ldb_tdb_init(void)
+{
+ return ldb_register_backend("tdb:", ltdb_connect);
+}