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-rw-r--r--source4/dsdb/samdb/ldb_modules/config.mk12
-rw-r--r--source4/dsdb/samdb/ldb_modules/entryUUID.c182
-rw-r--r--source4/dsdb/samdb/ldb_modules/samba3sam.c35
-rw-r--r--source4/lib/ldb/config.mk17
-rw-r--r--source4/lib/ldb/modules/ldb_map.c2210
-rw-r--r--source4/lib/ldb/modules/ldb_map.h89
-rw-r--r--source4/lib/ldb/modules/ldb_map_inbound.c724
-rw-r--r--source4/lib/ldb/modules/ldb_map_outbound.c1134
-rw-r--r--source4/lib/ldb/modules/ldb_map_private.h118
-rw-r--r--testdata/samba3/samba3.ldif38
-rwxr-xr-xtestprogs/ejs/samba3sam123
11 files changed, 3380 insertions, 1302 deletions
diff --git a/source4/dsdb/samdb/ldb_modules/config.mk b/source4/dsdb/samdb/ldb_modules/config.mk
index 799d650ee7..6168a73d94 100644
--- a/source4/dsdb/samdb/ldb_modules/config.mk
+++ b/source4/dsdb/samdb/ldb_modules/config.mk
@@ -33,6 +33,18 @@ OBJ_FILES = \
# End MODULE ldb_samldb
################################################
+################################################
+# Start MODULE ldb_entryUUID
+[MODULE::ldb_entryUUID]
+SUBSYSTEM = ldb
+INIT_FUNCTION = ldb_entryUUID_module_init
+ENABLE = YES
+OBJ_FILES = \
+ entryUUID.o
+#
+# End MODULE ldb_entryUUID
+################################################
+
# ################################################
# # Start MODULE ldb_proxy
# [MODULE::ldb_proxy]
diff --git a/source4/dsdb/samdb/ldb_modules/entryUUID.c b/source4/dsdb/samdb/ldb_modules/entryUUID.c
new file mode 100644
index 0000000000..5f7efc1681
--- /dev/null
+++ b/source4/dsdb/samdb/ldb_modules/entryUUID.c
@@ -0,0 +1,182 @@
+/*
+ ldb database module
+
+ LDAP semantics mapping module
+
+ Copyright (C) Jelmer Vernooij 2005
+ Copyright (C) Andrew Bartlett <abartlet@samba.org> 2006
+
+ 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 2 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, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+/*
+ This module relies on ldb_map to do all the real work, but performs
+ some of the trivial mappings between AD semantics and that provided
+ by OpenLDAP and similar servers.
+*/
+
+#include "includes.h"
+#include "ldb/include/ldb.h"
+#include "ldb/include/ldb_private.h"
+#include "ldb/include/ldb_errors.h"
+#include "ldb/modules/ldb_map.h"
+
+#include "librpc/gen_ndr/ndr_misc.h"
+#include "librpc/ndr/libndr.h"
+
+static struct ldb_val encode_guid(struct ldb_module *module, TALLOC_CTX *ctx, const struct ldb_val *val)
+{
+ struct GUID guid;
+ NTSTATUS status = GUID_from_string((char *)val->data, &guid);
+ struct ldb_val out = data_blob(NULL, 0);
+
+ if (!NT_STATUS_IS_OK(status)) {
+ return out;
+ }
+ status = ndr_push_struct_blob(&out, ctx, &guid,
+ (ndr_push_flags_fn_t)ndr_push_GUID);
+ if (!NT_STATUS_IS_OK(status)) {
+ return out;
+ }
+
+ return out;
+}
+
+static struct ldb_val decode_guid(struct ldb_module *module, TALLOC_CTX *ctx, const struct ldb_val *val)
+{
+ struct GUID *guid;
+ NTSTATUS status;
+ struct ldb_val out = data_blob(NULL, 0);
+
+ guid = talloc(ctx, struct GUID);
+ if (guid == NULL) {
+ return out;
+ }
+ status = ndr_pull_struct_blob(val, guid, guid,
+ (ndr_pull_flags_fn_t)ndr_pull_GUID);
+ if (!NT_STATUS_IS_OK(status)) {
+ talloc_free(guid);
+ return out;
+ }
+ out = data_blob_string_const(GUID_string(ctx, guid));
+ talloc_free(guid);
+ return out;
+}
+
+/* The backend holds binary sids, so just copy them back */
+static struct ldb_val sid_copy(struct ldb_module *module, TALLOC_CTX *ctx, const struct ldb_val *val)
+{
+ struct ldb_val out = data_blob(NULL, 0);
+ ldb_handler_copy(module->ldb, ctx, val, &out);
+
+ return out;
+}
+
+/* Ensure we always convert sids into binary, so the backend doesn't have to know about both forms */
+static struct ldb_val sid_always_binary(struct ldb_module *module, TALLOC_CTX *ctx, const struct ldb_val *val)
+{
+ struct ldb_val out = data_blob(NULL, 0);
+ const struct ldb_attrib_handler *handler = ldb_attrib_handler(module->ldb, "objectSid");
+
+ if (handler->canonicalise_fn(module->ldb, ctx, val, &out) != LDB_SUCCESS) {
+ return data_blob(NULL, 0);
+ }
+
+ return out;
+}
+
+const struct ldb_map_attribute entryUUID_attributes[] =
+{
+ /* objectGUID */
+ {
+ .local_name = "objectGUID",
+ .type = MAP_CONVERT,
+ .u = {
+ .convert = {
+ .remote_name = "entryUUID",
+ .convert_local = decode_guid,
+ .convert_remote = encode_guid,
+ },
+ },
+ },
+ /* objectSid */
+ {
+ .local_name = "objectSid",
+ .type = MAP_CONVERT,
+ .u = {
+ .convert = {
+ .remote_name = "objectSid",
+ .convert_local = sid_always_binary,
+ .convert_remote = sid_copy,
+ },
+ },
+ },
+ {
+ .local_name = "whenCreated",
+ .type = MAP_RENAME,
+ .u = {
+ .rename = {
+ .remote_name = "createTimestamp"
+ }
+ }
+ },
+ {
+ .local_name = "whenChanged",
+ .type = MAP_RENAME,
+ .u = {
+ .rename = {
+ .remote_name = "modifyTimestamp"
+ }
+ }
+ },
+ {
+ .local_name = "*",
+ .type = MAP_KEEP,
+ },
+ {
+ .local_name = NULL,
+ }
+};
+
+/* the context init function */
+static int entryUUID_init(struct ldb_module *module)
+{
+ int ret;
+
+ ret = ldb_map_init(module, entryUUID_attributes, NULL, NULL);
+ if (ret != LDB_SUCCESS)
+ return ret;
+
+ return ldb_next_init(module);
+}
+
+static struct ldb_module_ops entryUUID_ops = {
+ .name = "entryUUID",
+ .init_context = entryUUID_init,
+};
+
+/* the init function */
+int ldb_entryUUID_module_init(void)
+{
+ struct ldb_module_ops ops = ldb_map_get_ops();
+ entryUUID_ops.add = ops.add;
+ entryUUID_ops.modify = ops.modify;
+ entryUUID_ops.del = ops.del;
+ entryUUID_ops.rename = ops.rename;
+ entryUUID_ops.search = ops.search;
+ entryUUID_ops.wait = ops.wait;
+
+ return ldb_register_module(&entryUUID_ops);
+}
diff --git a/source4/dsdb/samdb/ldb_modules/samba3sam.c b/source4/dsdb/samdb/ldb_modules/samba3sam.c
index 80cedb7b08..670d9ef0d8 100644
--- a/source4/dsdb/samdb/ldb_modules/samba3sam.c
+++ b/source4/dsdb/samdb/ldb_modules/samba3sam.c
@@ -5,11 +5,17 @@
*/
#include "includes.h"
-#include "ldb/modules/ldb_map.h"
#include "ldb/include/ldb.h"
#include "ldb/include/ldb_private.h"
+#include "ldb/include/ldb_errors.h"
+#include "ldb/modules/ldb_map.h"
#include "system/passwd.h"
+#include "librpc/gen_ndr/ndr_security.h"
+#include "librpc/ndr/libndr.h"
+#include "libcli/security/security.h"
+#include "libcli/security/proto.h"
+
/*
* sambaSID -> member (dn!)
* sambaSIDList -> member (dn!)
@@ -855,8 +861,33 @@ const struct ldb_map_attribute samba3_attributes[] =
}
};
+/* the context init function */
+static int samba3sam_init(struct ldb_module *module)
+{
+ int ret;
+
+ ret = ldb_map_init(module, samba3_attributes, samba3_objectclasses, "samba3sam");
+ if (ret != LDB_SUCCESS)
+ return ret;
+
+ return ldb_next_init(module);
+}
+
+static struct ldb_module_ops samba3sam_ops = {
+ .name = "samba3sam",
+ .init_context = samba3sam_init,
+};
+
/* the init function */
int ldb_samba3sam_module_init(void)
{
- return ldb_map_init(ldb, samba3_attributes, samba3_objectclasses, "samba3sam");
+ struct ldb_module_ops ops = ldb_map_get_ops();
+ samba3sam_ops.add = ops.add;
+ samba3sam_ops.modify = ops.modify;
+ samba3sam_ops.del = ops.del;
+ samba3sam_ops.rename = ops.rename;
+ samba3sam_ops.search = ops.search;
+ samba3sam_ops.wait = ops.wait;
+
+ return ldb_register_module(&samba3sam_ops);
}
diff --git a/source4/lib/ldb/config.mk b/source4/lib/ldb/config.mk
index 85a6cb6c67..7b6458dd63 100644
--- a/source4/lib/ldb/config.mk
+++ b/source4/lib/ldb/config.mk
@@ -81,13 +81,16 @@ PUBLIC_DEPENDENCIES = \
# End MODULE ldb_ildap
################################################
-# ################################################
-# # Start MODULE ldb_map
-# [SUBSYSTEM::ldb_map]
-# PUBLIC_DEPENDENCIES = ldb
-# OBJ_FILES = modules/ldb_map.o
-# # End MODULE ldb_map
-# ################################################
+################################################
+# Start MODULE ldb_map
+[MODULE::ldb_map]
+SUBSYSTEM = ldb
+OBJ_FILES = \
+ modules/ldb_map_inbound.o \
+ modules/ldb_map_outbound.o \
+ modules/ldb_map.o
+# End MODULE ldb_map
+################################################
################################################
# Start MODULE ldb_skel
diff --git a/source4/lib/ldb/modules/ldb_map.c b/source4/lib/ldb/modules/ldb_map.c
index 33d8fe0e4d..cdb9f5b4a9 100644
--- a/source4/lib/ldb/modules/ldb_map.c
+++ b/source4/lib/ldb/modules/ldb_map.c
@@ -1,1492 +1,1300 @@
-/*
- ldb database library - map backend
+/*
+ ldb database mapping module
Copyright (C) Jelmer Vernooij 2005
+ Copyright (C) Martin Kuehl <mkhl@samba.org> 2006
- ** NOTE! The following LGPL license applies to the ldb
- ** library. This does NOT imply that all of Samba is released
- ** under the LGPL
-
- This library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2 of the License, or (at your option) any later version.
+ * NOTICE: this module is NOT released under the GNU LGPL license as
+ * other ldb code. This module is release under the GNU GPL v2 or
+ * later license.
- This library is distributed in the hope that it will be useful,
+ 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 2 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
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with this library; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ 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, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
+/*
+ * Name: ldb
+ *
+ * Component: ldb ldb_map module
+ *
+ * Description: Map portions of data into a different format on a
+ * remote partition.
+ *
+ * Author: Jelmer Vernooij, Martin Kuehl
+ */
+
#include "includes.h"
#include "ldb/include/includes.h"
#include "ldb/modules/ldb_map.h"
+#include "ldb/modules/ldb_map_private.h"
-/*
+/* Description of the provided ldb requests:
- special attribute 'isMapped'
- - add/modify
- - split up ldb_message into fallback and mapped parts if is_mappable
- - search:
- - search local one for not isMapped entries
- - remove remote attributes from ldb_parse_tree
- - search remote one
- - per record, search local one for additional data (by dn)
- - test if (full expression) is now true
- - delete
- - delete both
- - rename
- - rename locally and remotely
-*/
-static struct ldb_val map_convert_local_dn(struct ldb_module *map,
- TALLOC_CTX *ctx,
- const struct ldb_val *val);
-static struct ldb_val map_convert_remote_dn(struct ldb_module *map,
- TALLOC_CTX *ctx,
- const struct ldb_val *val);
-static struct ldb_val map_convert_local_objectclass(struct ldb_module *map,
- TALLOC_CTX *ctx,
- const struct ldb_val *val);
-static struct ldb_val map_convert_remote_objectclass(struct ldb_module *map,
- TALLOC_CTX *ctx,
- const struct ldb_val *val);
-
-static const struct ldb_map_attribute builtin_attribute_maps[] = {
- {
- .local_name = "dn",
- .type = MAP_CONVERT,
- .u = {
- .convert = {
- .remote_name = "dn",
- .convert_local = map_convert_local_dn,
- .convert_remote = map_convert_remote_dn,
- },
- },
- },
- {
- .local_name = "objectclass",
- .type = MAP_CONVERT,
- .u = {
- .convert = {
- .remote_name = "objectclass",
- .convert_local = map_convert_local_objectclass,
- .convert_remote = map_convert_remote_objectclass,
- },
- },
- },
- {
- .local_name = NULL,
- }
-};
+ - search:
+ - if parse tree can be split
+ - search remote records w/ remote attrs and parse tree
+ - otherwise
+ - enumerate all remote records
+ - for each remote result
+ - map remote result to local message
+ - search local result
+ - is present
+ - merge local into remote result
+ - run callback on merged result
+ - otherwise
+ - run callback on remote result
+
+ - add:
+ - split message into local and remote part
+ - if local message is not empty
+ - add isMapped to local message
+ - add local message
+ - add remote message
+
+ - modify:
+ - split message into local and remote part
+ - if local message is not empty
+ - add isMapped to local message
+ - search for local record
+ - if present
+ - modify local record
+ - otherwise
+ - add local message
+ - modify remote record
+
+ - delete:
+ - search for local record
+ - if present
+ - delete local record
+ - delete remote record
+
+ - rename:
+ - search for local record
+ - if present
+ - rename local record
+ - modify local isMapped
+ - rename remote record
+*/
-static const struct ldb_map_objectclass *map_find_objectclass_remote(struct ldb_map_context *privdat, const char *name)
-{
- int i;
- for (i = 0; privdat->objectclass_maps[i].remote_name; i++) {
- if (!ldb_attr_cmp(privdat->objectclass_maps[i].remote_name, name))
- return &privdat->objectclass_maps[i];
- }
- return NULL;
-}
-struct map_private {
- struct ldb_map_context context;
-};
+/* Private data structures
+ * ======================= */
-static struct ldb_map_context *map_get_privdat(struct ldb_module *module)
+/* Global private data */
+/* Extract mappings from private data. */
+const struct ldb_map_context *map_get_context(struct ldb_module *module)
{
- return &((struct map_private *)module->private_data)->context;
+ const struct map_private *data = talloc_get_type(module->private_data, struct map_private);
+ return &data->context;
}
-/* Check whether the given attribute can fit into the specified
- * message, obeying objectClass restrictions */
-static int map_msg_valid_attr(struct ldb_module *module, const struct ldb_message *msg, const char *attr)
+/* Create a generic request context. */
+static struct map_context *map_init_context(struct ldb_handle *h, struct ldb_request *req)
{
- struct ldb_map_context *map = module->private_data;
- int i, j;
- struct ldb_message_element *el = ldb_msg_find_element(msg, "objectClass");
+ struct map_context *ac;
- if (el == NULL) {
- ldb_debug(module->ldb, LDB_DEBUG_FATAL, "Can't find objectClass");
- return 0;
- }
-
- for (i = 0; i < el->num_values; i++) {
- const struct ldb_map_objectclass *class = map_find_objectclass_remote(map, (char *)el->values[i].data);
-
- if (!class)
- continue;
-
- for (j = 0; class->musts[j]; j++) {
- if (!ldb_attr_cmp(class->musts[j], attr))
- return 1;
- }
-
- for (j = 0; class->mays[j]; j++) {
- if (!ldb_attr_cmp(class->mays[j], attr))
- return 1;
- }
+ ac = talloc_zero(h, struct map_context);
+ if (ac == NULL) {
+ map_oom(h->module);
+ return NULL;
}
- return 0;
-}
+ ac->module = h->module;
+ ac->orig_req = req;
+ return ac;
+}
-/* find an attribute by the local name */
-static const struct ldb_map_attribute *map_find_attr_local(struct ldb_map_context *privdat, const char *attr)
+/* Create a search request context. */
+struct map_search_context *map_init_search_context(struct map_context *ac, struct ldb_reply *ares)
{
- int i;
+ struct map_search_context *sc;
- for (i = 0; privdat->attribute_maps[i].local_name; i++) {
- if (!ldb_attr_cmp(privdat->attribute_maps[i].local_name, attr))
- return &privdat->attribute_maps[i];
+ sc = talloc_zero(ac, struct map_search_context);
+ if (sc == NULL) {
+ map_oom(ac->module);
+ return NULL;
}
- return NULL;
+ sc->ac = ac;
+ sc->local_res = NULL;
+ sc->remote_res = ares;
+
+ return sc;
}
-/* Check if a given attribute can be created by doing mapping from a local attribute to a remote one */
-static int map_msg_can_map_attr(struct ldb_module *module, const struct ldb_message *msg, const char *attr_name)
+/* Create a request context and handle. */
+struct ldb_handle *map_init_handle(struct ldb_request *req, struct ldb_module *module)
{
- struct ldb_map_context *privdat = module->private_data;
- int i,j;
+ struct map_context *ac;
+ struct ldb_handle *h;
- for (i = 0; privdat->attribute_maps[i].local_name; i++) {
- switch (privdat->attribute_maps[i].type) {
- case MAP_IGNORE: /* No remote name at all */
- continue;
- case MAP_KEEP:
- if (ldb_attr_cmp(attr_name, privdat->attribute_maps[i].local_name) == 0)
- goto found;
- break;
- case MAP_RENAME:
- case MAP_CONVERT:
- if (ldb_attr_cmp(attr_name, privdat->attribute_maps[i].u.rename.remote_name) == 0)
- goto found;
- break;
- case MAP_GENERATE:
- for (j = 0; privdat->attribute_maps[i].u.generate.remote_names[j]; j++) {
- if (ldb_attr_cmp(attr_name, privdat->attribute_maps[i].u.generate.remote_names[j]) == 0)
- goto found;
- }
- break;
- }
+ h = talloc_zero(req, struct ldb_handle);
+ if (h == NULL) {
+ map_oom(module);
+ return NULL;
}
- return 0;
+ h->module = module;
+
+ ac = map_init_context(h, req);
+ if (ac == NULL) {
+ talloc_free(h);
+ return NULL;
+ }
-found:
+ h->private_data = (void *)ac;
- if (ldb_msg_find_element(msg, privdat->attribute_maps[i].local_name))
- return 1;
+ h->state = LDB_ASYNC_INIT;
+ h->status = LDB_SUCCESS;
- return 0;
+ return h;
}
+/* Dealing with DNs for different partitions
+ * ========================================= */
-/* find an attribute by the remote name */
-static const struct ldb_map_attribute *map_find_attr_remote(struct ldb_map_context *privdat, const char *attr)
+/* Check whether any data should be stored in the local partition. */
+BOOL map_check_local_db(struct ldb_module *module)
{
- int i;
+ const struct ldb_map_context *data = map_get_context(module);
- for (i = 0; privdat->attribute_maps[i].local_name; i++) {
- if (privdat->attribute_maps[i].type == MAP_IGNORE)
- continue;
+ if (!data->remote_base_dn || !data->local_base_dn) {
+ return False;
+ }
- if (privdat->attribute_maps[i].type == MAP_GENERATE)
- continue;
+ return True;
+}
- if (privdat->attribute_maps[i].type == MAP_KEEP &&
- ldb_attr_cmp(privdat->attribute_maps[i].local_name, attr) == 0)
- return &privdat->attribute_maps[i];
+/* WARK: verbatim copy from ldb_dn.c */
+static struct ldb_dn_component ldb_dn_copy_component(void *mem_ctx, struct ldb_dn_component *src)
+{
+ struct ldb_dn_component dst;
- if ((privdat->attribute_maps[i].type == MAP_RENAME ||
- privdat->attribute_maps[i].type == MAP_CONVERT) &&
- ldb_attr_cmp(privdat->attribute_maps[i].u.rename.remote_name, attr) == 0)
- return &privdat->attribute_maps[i];
+ memset(&dst, 0, sizeof(dst));
+ if (src == NULL) {
+ return dst;
}
- return NULL;
+ dst.value = ldb_val_dup(mem_ctx, &(src->value));
+ if (dst.value.data == NULL) {
+ return dst;
+ }
+
+ dst.name = talloc_strdup(mem_ctx, src->name);
+ if (dst.name == NULL) {
+ talloc_free(dst.value.data);
+ }
+
+ return dst;
}
-static struct ldb_parse_tree *ldb_map_parse_tree(struct ldb_module *module, TALLOC_CTX *ctx, const struct ldb_parse_tree *tree)
+/* Copy a DN but replace the old with the new base DN. */
+static struct ldb_dn *ldb_dn_rebase(void *mem_ctx, const struct ldb_dn *old, const struct ldb_dn *old_base, const struct ldb_dn *new_base)
{
- int i;
- const struct ldb_map_attribute *attr;
- struct ldb_parse_tree *new_tree;
- enum ldb_map_attr_type map_type;
- struct ldb_val value, newvalue;
- struct ldb_map_context *privdat = map_get_privdat(module);
+ struct ldb_dn *new;
+ int i, offset;
- if (tree == NULL)
- return NULL;
-
-
- /* Find attr in question and:
- * - if it has a convert_operator function, run that
- * - otherwise, replace attr name with required[0] */
-
- if (tree->operation == LDB_OP_AND ||
- tree->operation == LDB_OP_OR) {
-
- new_tree = talloc_memdup(ctx, tree, sizeof(*tree));
- new_tree->u.list.elements = talloc_array(new_tree, struct ldb_parse_tree *, tree->u.list.num_elements);
- new_tree->u.list.num_elements = 0;
- for (i = 0; i < tree->u.list.num_elements; i++) {
- struct ldb_parse_tree *child = ldb_map_parse_tree(module, new_tree, tree->u.list.elements[i]);
-
- if (child) {
- new_tree->u.list.elements[i] = child;
- new_tree->u.list.num_elements++;
- }
- }
+ /* Perhaps we don't need to rebase at all? */
+ if (!old_base || !new_base) {
+ return ldb_dn_copy(mem_ctx, old);
+ }
- return new_tree;
+ offset = old->comp_num - old_base->comp_num;
+ new = ldb_dn_copy_partial(mem_ctx, new_base, offset + new_base->comp_num);
+ for (i = 0; i < offset; i++) {
+ new->components[i] = ldb_dn_copy_component(new->components, &(old->components[i]));
}
-
- if (tree->operation == LDB_OP_NOT) {
- struct ldb_parse_tree *child;
-
- new_tree = talloc_memdup(ctx, tree, sizeof(*tree));
- child = ldb_map_parse_tree(module, new_tree, tree->u.isnot.child);
- if (!child) {
- talloc_free(new_tree);
- return NULL;
+ return new;
+}
+
+/* Copy a DN with the base DN of the local partition. */
+static struct ldb_dn *ldb_dn_rebase_local(void *mem_ctx, const struct ldb_map_context *data, const struct ldb_dn *dn)
+{
+ return ldb_dn_rebase(mem_ctx, dn, data->remote_base_dn, data->local_base_dn);
+}
+
+/* Copy a DN with the base DN of the remote partition. */
+static struct ldb_dn *ldb_dn_rebase_remote(void *mem_ctx, const struct ldb_map_context *data, const struct ldb_dn *dn)
+{
+ return ldb_dn_rebase(mem_ctx, dn, data->local_base_dn, data->remote_base_dn);
+}
+
+/* Run a request and make sure it targets the remote partition. */
+/* TODO: free old DNs and messages? */
+int ldb_next_remote_request(struct ldb_module *module, struct ldb_request *request)
+{
+ const struct ldb_map_context *data = map_get_context(module);
+ struct ldb_message *msg;
+
+ switch (request->operation) {
+ case LDB_SEARCH:
+ if (request->op.search.base) {
+ request->op.search.base = ldb_dn_rebase_remote(request, data, request->op.search.base);
+ } else {
+ request->op.search.base = data->remote_base_dn;
+ /* TODO: adjust scope? */
}
+ break;
- new_tree->u.isnot.child = child;
- return new_tree;
- }
+ case LDB_ADD:
+ msg = ldb_msg_copy_shallow(request, request->op.add.message);
+ msg->dn = ldb_dn_rebase_remote(msg, data, msg->dn);
+ request->op.add.message = msg;
+ break;
- /* tree->operation is LDB_OP_EQUALITY, LDB_OP_SUBSTRING, LDB_OP_GREATER,
- * LDB_OP_LESS, LDB_OP_APPROX, LDB_OP_PRESENT or LDB_OP_EXTENDED
- *
- * (all have attr as the first element)
- */
+ case LDB_MODIFY:
+ msg = ldb_msg_copy_shallow(request, request->op.mod.message);
+ msg->dn = ldb_dn_rebase_remote(msg, data, msg->dn);
+ request->op.mod.message = msg;
+ break;
- attr = map_find_attr_local(privdat, tree->u.equality.attr);
+ case LDB_DELETE:
+ request->op.del.dn = ldb_dn_rebase_remote(request, data, request->op.del.dn);
+ break;
- if (!attr) {
- ldb_debug(module->ldb, LDB_DEBUG_TRACE, "Unable to find local attribute '%s', removing from parse tree\n", tree->u.equality.attr);
- map_type = MAP_IGNORE;
- } else {
- map_type = attr->type;
- }
+ case LDB_RENAME:
+ request->op.rename.olddn = ldb_dn_rebase_remote(request, data, request->op.rename.olddn);
+ request->op.rename.newdn = ldb_dn_rebase_remote(request, data, request->op.rename.newdn);
+ break;
- if (attr && attr->convert_operator) {
- /* Run convert_operator */
- return attr->convert_operator(privdat, module, tree);
+ default:
+ ldb_debug(module->ldb, LDB_DEBUG_ERROR, "ldb_map: "
+ "Invalid remote request!\n");
+ return LDB_ERR_OPERATIONS_ERROR;
}
- if (map_type == MAP_IGNORE) {
- ldb_debug(module->ldb, LDB_DEBUG_TRACE, "Not mapping search on ignored attribute '%s'\n", tree->u.equality.attr);
- return NULL;
- }
+ return ldb_next_request(module, request);
+}
- if (map_type == MAP_GENERATE) {
- ldb_debug(module->ldb, LDB_DEBUG_ERROR, "Can't do conversion for MAP_GENERATE in map_parse_tree without convert_operator for '%s'\n", tree->u.equality.attr);
- return NULL;
- }
- if (tree->operation == LDB_OP_EQUALITY) {
- value = tree->u.equality.value;
- } else if (tree->operation == LDB_OP_LESS || tree->operation == LDB_OP_GREATER ||
- tree->operation == LDB_OP_APPROX) {
- value = tree->u.comparison.value;
- } else if (tree->operation == LDB_OP_EXTENDED) {
- value = tree->u.extended.value;
- }
-
- new_tree = talloc_memdup(ctx, tree, sizeof(*tree));
+/* Finding mappings for attributes and objectClasses
+ * ================================================= */
- if (map_type == MAP_KEEP) {
- new_tree->u.equality.attr = talloc_strdup(new_tree, tree->u.equality.attr);
- } else { /* MAP_RENAME / MAP_CONVERT */
- new_tree->u.equality.attr = talloc_strdup(new_tree, attr->u.rename.remote_name);
- }
+/* Find an objectClass mapping by the local name. */
+static const struct ldb_map_objectclass *map_objectclass_find_local(const struct ldb_map_context *data, const char *name)
+{
+ int i;
- if (new_tree->operation == LDB_OP_PRESENT)
- return new_tree;
-
- if (new_tree->operation == LDB_OP_SUBSTRING) {
- new_tree->u.substring.chunks = NULL; /* FIXME! */
- return new_tree;
+ for (i = 0; data->objectclass_maps && data->objectclass_maps[i].local_name; i++) {
+ if (ldb_attr_cmp(data->objectclass_maps[i].local_name, name) == 0) {
+ return &data->objectclass_maps[i];
+ }
}
- if (map_type == MAP_CONVERT) {
- if (!attr->u.convert.convert_local)
- return NULL;
- newvalue = attr->u.convert.convert_local(module, new_tree, &value);
- } else {
- newvalue = ldb_val_dup(new_tree, &value);
- }
+ return NULL;
+}
- if (new_tree->operation == LDB_OP_EQUALITY) {
- new_tree->u.equality.value = newvalue;
- } else if (new_tree->operation == LDB_OP_LESS || new_tree->operation == LDB_OP_GREATER ||
- new_tree->operation == LDB_OP_APPROX) {
- new_tree->u.comparison.value = newvalue;
- } else if (new_tree->operation == LDB_OP_EXTENDED) {
- new_tree->u.extended.value = newvalue;
- new_tree->u.extended.rule_id = talloc_strdup(new_tree, tree->u.extended.rule_id);
+/* Find an objectClass mapping by the remote name. */
+static const struct ldb_map_objectclass *map_objectclass_find_remote(const struct ldb_map_context *data, const char *name)
+{
+ int i;
+
+ for (i = 0; data->objectclass_maps && data->objectclass_maps[i].remote_name; i++) {
+ if (ldb_attr_cmp(data->objectclass_maps[i].remote_name, name) == 0) {
+ return &data->objectclass_maps[i];
+ }
}
-
- return new_tree;
+
+ return NULL;
}
-/* Remote DN -> Local DN */
-static struct ldb_dn *map_remote_dn(struct ldb_module *module, TALLOC_CTX *ctx, const struct ldb_dn *dn)
+/* Find an attribute mapping by the local name. */
+const struct ldb_map_attribute *map_attr_find_local(const struct ldb_map_context *data, const char *name)
{
- struct ldb_dn *newdn;
int i;
- if (dn == NULL)
- return NULL;
+ for (i = 0; data->attribute_maps[i].local_name; i++) {
+ if (ldb_attr_cmp(data->attribute_maps[i].local_name, name) == 0) {
+ return &data->attribute_maps[i];
+ }
+ }
+ for (i = 0; data->attribute_maps[i].local_name; i++) {
+ if (ldb_attr_cmp(data->attribute_maps[i].local_name, "*") == 0) {
+ return &data->attribute_maps[i];
+ }
+ }
- newdn = talloc_memdup(ctx, dn, sizeof(*dn));
- if (!newdn)
- return NULL;
+ return NULL;
+}
- newdn->components = talloc_array(newdn, struct ldb_dn_component, newdn->comp_num);
+/* Find an attribute mapping by the remote name. */
+const struct ldb_map_attribute *map_attr_find_remote(const struct ldb_map_context *data, const char *name)
+{
+ const struct ldb_map_attribute *wildcard = NULL;
+ int i, j;
- if (!newdn->components)
- return NULL;
+ for (i = 0; data->attribute_maps[i].local_name; i++) {
+ if (ldb_attr_cmp(data->attribute_maps[i].local_name, "*") == 0) {
+ wildcard = &data->attribute_maps[i];
+ }
- /* For each rdn, map the attribute name and possibly the
- * complete rdn */
-
- for (i = 0; i < dn->comp_num; i++) {
- const struct ldb_map_attribute *attr = map_find_attr_remote(module->private_data, dn->components[i].name);
- enum ldb_map_attr_type map_type;
-
- /* Unknown attribute - leave this dn as is and hope the best... */
- if (!attr) map_type = MAP_KEEP;
- else map_type = attr->type;
-
- switch (map_type) {
+ switch (data->attribute_maps[i].type) {
case MAP_IGNORE:
- case MAP_GENERATE:
- ldb_debug(module->ldb, LDB_DEBUG_ERROR, "Local MAP_IGNORE or MAP_GENERATE attribute '%s' used in DN!", dn->components[i].name);
- talloc_free(newdn);
- return NULL;
+ break;
case MAP_KEEP:
- newdn->components[i].name = talloc_strdup(newdn->components, dn->components[i].name);
- newdn->components[i].value = ldb_val_dup(newdn->components, &dn->components[i].value);
+ if (ldb_attr_cmp(data->attribute_maps[i].local_name, name) == 0) {
+ return &data->attribute_maps[i];
+ }
break;
-
+
+ case MAP_RENAME:
case MAP_CONVERT:
- newdn->components[i].name = talloc_strdup(newdn->components, attr->local_name);
- newdn->components[i].value = attr->u.convert.convert_remote(module, ctx, &dn->components[i].value);
+ if (ldb_attr_cmp(data->attribute_maps[i].u.rename.remote_name, name) == 0) {
+ return &data->attribute_maps[i];
+ }
break;
-
- case MAP_RENAME:
- newdn->components[i].name = talloc_strdup(newdn->components, attr->local_name);
- newdn->components[i].value = ldb_val_dup(newdn->components, &dn->components[i].value);
+
+ case MAP_GENERATE:
+ for (j = 0; data->attribute_maps[i].u.generate.remote_names[j]; j++) {
+ if (ldb_attr_cmp(data->attribute_maps[i].u.generate.remote_names[j], name) == 0) {
+ return &data->attribute_maps[i];
+ }
+ }
break;
}
}
- return newdn;
-}
-
-/* Local DN -> Remote DN */
-static struct ldb_dn *map_local_dn(struct ldb_module *module, TALLOC_CTX *ctx, const struct ldb_dn *dn)
-{
- struct ldb_dn *newdn;
- int i;
-
- if (dn == NULL)
- return NULL;
- newdn = talloc_memdup(ctx, dn, sizeof(*dn));
- if (!newdn)
- return NULL;
-
- newdn->components = talloc_array(newdn, struct ldb_dn_component, newdn->comp_num);
+ /* We didn't find it, so return the wildcard record if one was configured */
+ return wildcard;
+}
- if (!newdn->components)
- return NULL;
- /* For each rdn, map the attribute name and possibly the
- * complete rdn using an equality convert_operator call */
-
- for (i = 0; i < dn->comp_num; i++) {
- const struct ldb_map_attribute *attr = map_find_attr_local(module->private_data, dn->components[i].name);
- enum ldb_map_attr_type map_type;
-
- /* Unknown attribute - leave this dn as is and hope the best... */
- if (!attr) map_type = MAP_KEEP; else map_type = attr->type;
-
- switch (map_type)
- {
- case MAP_IGNORE:
- case MAP_GENERATE:
- ldb_debug(module->ldb, LDB_DEBUG_ERROR, "Local MAP_IGNORE/MAP_GENERATE attribute '%s' used in DN!", dn->components[i].name);
- talloc_free(newdn);
- return NULL;
+/* Mapping attributes
+ * ================== */
- case MAP_CONVERT:
- newdn->components[i].name = talloc_strdup(newdn->components, attr->u.convert.remote_name);
- if (attr->u.convert.convert_local == NULL) {
- ldb_debug(module->ldb, LDB_DEBUG_ERROR, "convert_local not set for attribute '%s' used in DN!", dn->components[i].name);
- talloc_free(newdn);
- return NULL;
- }
- newdn->components[i].value = attr->u.convert.convert_local(module, newdn->components, &dn->components[i].value);
- break;
-
- case MAP_RENAME:
- newdn->components[i].name = talloc_strdup(newdn->components, attr->u.rename.remote_name);
- newdn->components[i].value = ldb_val_dup(newdn->components, &dn->components[i].value);
- break;
+/* Check whether an attribute will be mapped into the remote partition. */
+BOOL map_attr_check_remote(const struct ldb_map_context *data, const char *attr)
+{
+ const struct ldb_map_attribute *map = map_attr_find_local(data, attr);
- case MAP_KEEP:
- newdn->components[i].name = talloc_strdup(newdn->components, dn->components[i].name);
- newdn->components[i].value = ldb_val_dup(newdn->components, &dn->components[i].value);
- continue;
- }
+ if (map == NULL) {
+ return False;
+ }
+ if (map->type == MAP_IGNORE) {
+ return False;
}
- return newdn;
+ return True;
}
-/* Loop over ldb_map_attribute array and add remote_names */
-static const char **ldb_map_attrs(struct ldb_module *module, const char *const attrs[])
+/* Map an attribute name into the remote partition. */
+const char *map_attr_map_local(void *mem_ctx, const struct ldb_map_attribute *map, const char *attr)
{
- int i;
- const char **ret;
- int ar_size = 0, last_element = 0;
- struct ldb_map_context *privdat = map_get_privdat(module);
+ if (map == NULL) {
+ return talloc_strdup(mem_ctx, attr);
+ }
- if (attrs == NULL)
- return NULL;
+ switch (map->type) {
+ case MAP_KEEP:
+ return talloc_strdup(mem_ctx, attr);
- /* Start with good guess of number of elements */
- for (i = 0; attrs[i]; i++);
-
- ret = talloc_array(module, const char *, i);
- ar_size = i;
-
- for (i = 0; attrs[i]; i++) {
- int j;
- const struct ldb_map_attribute *attr = map_find_attr_local(privdat, attrs[i]);
- enum ldb_map_attr_type map_type;
-
- if (!attr) {
- ldb_debug(module->ldb, LDB_DEBUG_TRACE, "Local attribute '%s' does not have a definition!\n", attrs[i]);
- map_type = MAP_IGNORE;
- } else map_type = attr->type;
-
- switch (map_type)
- {
- case MAP_IGNORE: break;
- case MAP_KEEP:
- if (last_element >= ar_size) {
- ret = talloc_realloc(module, ret, const char *, ar_size+1);
- ar_size++;
- }
- ret[last_element] = attr->local_name;
- last_element++;
- break;
-
- case MAP_RENAME:
- case MAP_CONVERT:
- if (last_element >= ar_size) {
- ret = talloc_realloc(module, ret, const char *, ar_size+1);
- ar_size++;
- }
- ret[last_element] = attr->u.rename.remote_name;
- last_element++;
- break;
-
- case MAP_GENERATE:
- /* Add remote_names[] for this attribute to the list of
- * attributes to request from the remote server */
- for (j = 0; attr->u.generate.remote_names[j]; j++) {
- if (last_element >= ar_size) {
- ret = talloc_realloc(module, ret, const char *, ar_size+1);
- ar_size++;
- }
- ret[last_element] = attr->u.generate.remote_names[j];
- last_element++;
- }
- break;
- }
+ case MAP_RENAME:
+ case MAP_CONVERT:
+ return talloc_strdup(mem_ctx, map->u.rename.remote_name);
+
+ default:
+ return NULL;
}
-
- if (last_element >= ar_size) {
- ret = talloc_realloc(module, ret, const char *, ar_size+1);
- ar_size++;
+}
+
+/* Map an attribute name back into the local partition. */
+const char *map_attr_map_remote(void *mem_ctx, const struct ldb_map_attribute *map, const char *attr)
+{
+ if (map == NULL) {
+ return talloc_strdup(mem_ctx, attr);
}
- ret[last_element] = NULL;
+ if (map->type == MAP_KEEP) {
+ return talloc_strdup(mem_ctx, attr);
+ }
- return ret;
+ return talloc_strdup(mem_ctx, map->local_name);
}
-static const char **available_local_attributes(struct ldb_module *module, const struct ldb_message *msg)
-{
- struct ldb_map_context *privdat = map_get_privdat(module);
- int i, j;
- int count = 0;
- const char **ret = talloc_array(module, const char *, 1);
-
- ret[0] = NULL;
-
- for (i = 0; privdat->attribute_maps[i].local_name; i++) {
- BOOL avail = False;
- const struct ldb_map_attribute *attr = &privdat->attribute_maps[i];
-
- /* If all remote attributes for this attribute are present, add the
- * local one to the list */
-
- switch (attr->type) {
- case MAP_IGNORE: break;
- case MAP_KEEP:
- avail = (ldb_msg_find_ldb_val(msg, attr->local_name) != NULL);
- break;
-
- case MAP_RENAME:
- case MAP_CONVERT:
- avail = (ldb_msg_find_ldb_val(msg, attr->u.rename.remote_name) != NULL);
- break;
+/* Mapping ldb values
+ * ================== */
- case MAP_GENERATE:
- avail = True;
- for (j = 0; attr->u.generate.remote_names[j]; j++) {
- avail &= (BOOL)(ldb_msg_find_ldb_val(msg, attr->u.generate.remote_names[j]) != NULL);
- }
- break;
- }
+/* Map an ldb value into the remote partition. */
+struct ldb_val ldb_val_map_local(struct ldb_module *module, void *mem_ctx, const struct ldb_map_attribute *map, struct ldb_val val)
+{
+ if (map && (map->type == MAP_CONVERT) && (map->u.convert.convert_local)) {
+ return map->u.convert.convert_local(module, mem_ctx, &val);
+ }
- if (!avail)
- continue;
+ return ldb_val_dup(mem_ctx, &val);
+}
- ret = talloc_realloc(module, ret, const char *, count+2);
- ret[count] = attr->local_name;
- ret[count+1] = NULL;
- count++;
+/* Map an ldb value back into the local partition. */
+struct ldb_val ldb_val_map_remote(struct ldb_module *module, void *mem_ctx, const struct ldb_map_attribute *map, struct ldb_val val)
+{
+ if (map && (map->type == MAP_CONVERT) && (map->u.convert.convert_remote)) {
+ return map->u.convert.convert_remote(module, mem_ctx, &val);
}
- return ret;
+ return ldb_val_dup(mem_ctx, &val);
}
-/* Used for search */
-static struct ldb_message *ldb_map_message_incoming(struct ldb_module *module, const char * const*attrs, const struct ldb_message *mi)
+
+/* Mapping DNs
+ * =========== */
+
+/* Check whether a DN is below the local baseDN. */
+BOOL ldb_dn_check_local(struct ldb_module *module, const struct ldb_dn *dn)
{
- int i, j;
- struct ldb_message *msg = talloc_zero(module, struct ldb_message);
- struct ldb_message_element *elm, *oldelm;
- struct ldb_map_context *privdat = map_get_privdat(module);
- const char **newattrs = NULL;
+ const struct ldb_map_context *data = map_get_context(module);
- msg->dn = map_remote_dn(module, module, mi->dn);
+ if (!data->local_base_dn) {
+ return True;
+ }
+
+ return ldb_dn_compare_base(module->ldb, data->local_base_dn, dn) == 0;
+}
- /* Loop over attrs, find in ldb_map_attribute array and
- * run generate() */
+/* Map a DN into the remote partition. */
+struct ldb_dn *ldb_dn_map_local(struct ldb_module *module, void *mem_ctx, const struct ldb_dn *dn)
+{
+ const struct ldb_map_context *data = map_get_context(module);
+ struct ldb_dn *newdn;
+ struct ldb_dn_component *old, *new;
+ const struct ldb_map_attribute *map;
+ enum ldb_map_attr_type map_type;
+ int i;
- if (attrs == NULL) {
- /* Generate list of the local attributes that /can/ be generated
- * using the specific remote attributes */
+ if (dn == NULL) {
+ return NULL;
+ }
- attrs = newattrs = available_local_attributes(module, mi);
+ newdn = ldb_dn_copy(mem_ctx, dn);
+ if (newdn == NULL) {
+ map_oom(module);
+ return NULL;
}
- for (i = 0; attrs[i]; i++) {
- const struct ldb_map_attribute *attr = map_find_attr_local(privdat, attrs[i]);
- enum ldb_map_attr_type map_type;
+ /* For each RDN, map the component name and possibly the value */
+ for (i = 0; i < newdn->comp_num; i++) {
+ old = &dn->components[i];
+ new = &newdn->components[i];
+ map = map_attr_find_local(data, old->name);
- if (!attr) {
- ldb_debug(module->ldb, LDB_DEBUG_WARNING, "Unable to find local attribute '%s' when generating incoming message\n", attrs[i]);
- map_type = MAP_IGNORE;
- } else map_type = attr->type;
+ /* Unknown attribute - leave this RDN as is and hope the best... */
+ if (map == NULL) {
+ map_type = MAP_KEEP;
+ } else {
+ map_type = map->type;
+ }
switch (map_type) {
- case MAP_IGNORE:break;
- case MAP_RENAME:
- ldb_debug(module->ldb, LDB_DEBUG_TRACE, "Renaming remote attribute %s to %s", attr->u.rename.remote_name, attr->local_name);
- oldelm = ldb_msg_find_element(mi, attr->u.rename.remote_name);
- if (!oldelm)
- continue;
-
- elm = talloc(msg, struct ldb_message_element);
- elm->name = talloc_strdup(elm, attr->local_name);
- elm->num_values = oldelm->num_values;
- elm->values = talloc_array(elm, struct ldb_val, elm->num_values);
- for (j = 0; j < oldelm->num_values; j++)
- elm->values[j] = ldb_val_dup(elm, &oldelm->values[j]);
-
- ldb_msg_add(msg, elm, oldelm->flags);
- break;
-
- case MAP_CONVERT:
- ldb_debug(module->ldb, LDB_DEBUG_TRACE, "Converting remote attribute %s to %s", attr->u.rename.remote_name, attr->local_name);
- oldelm = ldb_msg_find_element(mi, attr->u.rename.remote_name);
- if (!oldelm)
- continue;
-
- elm = talloc(msg, struct ldb_message_element);
- elm->name = talloc_strdup(elm, attr->local_name);
- elm->num_values = oldelm->num_values;
- elm->values = talloc_array(elm, struct ldb_val, elm->num_values);
-
- for (j = 0; j < oldelm->num_values; j++)
- elm->values[j] = attr->u.convert.convert_remote(module, elm, &oldelm->values[j]);
-
- ldb_msg_add(msg, elm, oldelm->flags);
- break;
-
- case MAP_KEEP:
- ldb_debug(module->ldb, LDB_DEBUG_TRACE, "Keeping remote attribute %s", attr->local_name);
- oldelm = ldb_msg_find_element(mi, attr->local_name);
- if (!oldelm) continue;
-
- elm = talloc(msg, struct ldb_message_element);
-
- elm->num_values = oldelm->num_values;
- elm->values = talloc_array(elm, struct ldb_val, elm->num_values);
- for (j = 0; j < oldelm->num_values; j++)
- elm->values[j] = ldb_val_dup(elm, &oldelm->values[j]);
-
- elm->name = talloc_strdup(elm, oldelm->name);
-
- ldb_msg_add(msg, elm, oldelm->flags);
- break;
-
- case MAP_GENERATE:
- ldb_debug(module->ldb, LDB_DEBUG_TRACE, "Generating local attribute %s", attr->local_name);
- if (!attr->u.generate.generate_local)
- continue;
-
- elm = attr->u.generate.generate_local(module, msg, attr->local_name, mi);
- if (!elm)
- continue;
-
- ldb_msg_add(msg, elm, elm->flags);
- break;
- default:
- ldb_debug(module->ldb, LDB_DEBUG_ERROR, "Unknown attr->type for %s", attr->local_name);
- break;
+ case MAP_IGNORE:
+ case MAP_GENERATE:
+ ldb_debug(module->ldb, LDB_DEBUG_ERROR, "ldb_map: "
+ "MAP_IGNORE/MAP_GENERATE attribute '%s' "
+ "used in DN!\n", old->name);
+ goto failed;
+
+ case MAP_CONVERT:
+ if (map->u.convert.convert_local == NULL) {
+ ldb_debug(module->ldb, LDB_DEBUG_ERROR, "ldb_map: "
+ "'convert_local' not set for attribute '%s' "
+ "used in DN!\n", old->name);
+ goto failed;
+ }
+ /* fall through */
+ case MAP_KEEP:
+ case MAP_RENAME:
+ new->name = discard_const_p(char, map_attr_map_local(newdn->components, map, old->name));
+ new->value = ldb_val_map_local(module, newdn->components, map, old->value);
+ break;
}
}
- talloc_free(newattrs);
+ return newdn;
- return msg;
+failed:
+ talloc_free(newdn);
+ return NULL;
}
-/*
- rename a record
-*/
-static int map_rename(struct ldb_module *module, struct ldb_request *req)
+/* Map a DN into the local partition. */
+struct ldb_dn *ldb_dn_map_remote(struct ldb_module *module, void *mem_ctx, const struct ldb_dn *dn)
{
- const struct ldb_dn *olddn = req->op.rename.olddn;
- const struct ldb_dn *newdn = req->op.rename.newdn;
- struct ldb_map_context *privdat = map_get_privdat(module);
- struct ldb_dn *n_olddn, *n_newdn;
- int ret;
+ const struct ldb_map_context *data = map_get_context(module);
+ struct ldb_dn *newdn;
+ struct ldb_dn_component *old, *new;
+ const struct ldb_map_attribute *map;
+ enum ldb_map_attr_type map_type;
+ int i;
- n_olddn = map_local_dn(module, module, olddn);
- n_newdn = map_local_dn(module, module, newdn);
+ if (dn == NULL) {
+ return NULL;
+ }
- ret = ldb_rename(privdat->mapped_ldb, n_olddn, n_newdn);
- if (ret != -1) {
- ldb_debug(module->ldb, LDB_DEBUG_TRACE, "Mapped record renamed");
- ldb_next_request(module, req);
- } else {
- ret = ldb_next_request(module, req);
-
- if (ret != -1) {
- ldb_debug(module->ldb, LDB_DEBUG_TRACE, "Fallback record renamed");
- }
+ newdn = ldb_dn_copy(mem_ctx, dn);
+ if (newdn == NULL) {
+ map_oom(module);
+ return NULL;
}
-
- talloc_free(n_olddn);
- talloc_free(n_newdn);
-
- return ret;
-}
+ /* For each RDN, map the component name and possibly the value */
+ for (i = 0; i < newdn->comp_num; i++) {
+ old = &dn->components[i];
+ new = &newdn->components[i];
+ map = map_attr_find_remote(data, old->name);
-/*
- delete a record
-*/
-static int map_delete(struct ldb_module *module, struct ldb_request *req)
-{
- const struct ldb_dn *dn = req->op.del.dn;
- struct ldb_map_context *privdat = map_get_privdat(module);
- struct ldb_dn *newdn;
- int ret;
+ /* Unknown attribute - leave this RDN as is and hope the best... */
+ if (map == NULL) {
+ map_type = MAP_KEEP;
+ } else {
+ map_type = map->type;
+ }
- newdn = map_local_dn(module, module, dn);
+ switch (map_type) {
+ case MAP_IGNORE:
+ case MAP_GENERATE:
+ ldb_debug(module->ldb, LDB_DEBUG_ERROR, "ldb_map: "
+ "MAP_IGNORE/MAP_GENERATE attribute '%s' "
+ "used in DN!\n", old->name);
+ goto failed;
- ret = ldb_delete(privdat->mapped_ldb, newdn);
- if (ret != -1) {
- ldb_debug(module->ldb, LDB_DEBUG_TRACE, "Mapped record deleted");
- } else {
- ret = ldb_next_request(module, req);
- if (ret != -1) {
- ldb_debug(module->ldb, LDB_DEBUG_TRACE, "Fallback record deleted");
+ case MAP_CONVERT:
+ if (map->u.convert.convert_remote == NULL) {
+ ldb_debug(module->ldb, LDB_DEBUG_ERROR, "ldb_map: "
+ "'convert_remote' not set for attribute '%s' "
+ "used in DN!\n", old->name);
+ goto failed;
+ }
+ /* fall through */
+ case MAP_KEEP:
+ case MAP_RENAME:
+ new->name = discard_const_p(char, map_attr_map_remote(newdn->components, map, old->name));
+ new->value = ldb_val_map_remote(module, newdn->components, map, old->value);
+ break;
}
}
- req->op.del.dn = newdn;
- ret = ldb_next_request(module, req);
- req->op.del.dn = dn;
+ return newdn;
+failed:
talloc_free(newdn);
-
- return ret;
+ return NULL;
}
-/* search fallback database */
-static int map_search_fb(struct ldb_module *module, struct ldb_request *req)
+/* Map a DN and its base into the local partition. */
+/* TODO: This should not be required with GUIDs. */
+struct ldb_dn *ldb_dn_map_rebase_remote(struct ldb_module *module, void *mem_ctx, const struct ldb_dn *dn)
{
- struct ldb_parse_tree *tree = req->op.search.tree;
- struct ldb_parse_tree t_and, t_not, t_present, *childs[2];
- int ret;
- char *ismapped;
+ const struct ldb_map_context *data = map_get_context(module);
+ struct ldb_dn *dn1, *dn2;
- t_present.operation = LDB_OP_PRESENT;
- ismapped = talloc_strdup(module, "isMapped");
- t_present.u.present.attr = ismapped;
+ dn1 = ldb_dn_rebase_local(mem_ctx, data, dn);
+ dn2 = ldb_dn_map_remote(module, mem_ctx, dn1);
- t_not.operation = LDB_OP_NOT;
- t_not.u.isnot.child = &t_present;
+ talloc_free(dn1);
+ return dn2;
+}
- childs[0] = &t_not;
- childs[1] = tree;
- t_and.operation = LDB_OP_AND;
- t_and.u.list.num_elements = 2;
- t_and.u.list.elements = childs;
- req->op.search.tree = &t_and;
- ret = ldb_next_request(module, req);
- req->op.search.tree = tree;
+/* Converting DNs and objectClasses (as ldb values)
+ * ================================================ */
- talloc_free(ismapped);
+/* Map a DN contained in an ldb value into the remote partition. */
+static struct ldb_val ldb_dn_convert_local(struct ldb_module *module, void *mem_ctx, const struct ldb_val *val)
+{
+ struct ldb_dn *dn, *newdn;
+ struct ldb_val newval;
- return ret;
+ dn = ldb_dn_explode(mem_ctx, (char *)val->data);
+ newdn = ldb_dn_map_local(module, mem_ctx, dn);
+ talloc_free(dn);
+
+ newval.length = 0;
+ newval.data = (uint8_t *)ldb_dn_linearize(mem_ctx, newdn);
+ if (newval.data) {
+ newval.length = strlen((char *)newval.data);
+ }
+ talloc_free(newdn);
+
+ return newval;
}
-/* Search in the database against which we are mapping */
-static int map_search_mp(struct ldb_module *module, struct ldb_request *req)
+/* Map a DN contained in an ldb value into the local partition. */
+static struct ldb_val ldb_dn_convert_remote(struct ldb_module *module, void *mem_ctx, const struct ldb_val *val)
{
- const struct ldb_dn *base = req->op.search.base;
- enum ldb_scope scope = req->op.search.scope;
- struct ldb_parse_tree *tree = req->op.search.tree;
- const char * const *attrs = req->op.search.attrs;
- struct ldb_result *res;
- struct ldb_request new_req;
- struct ldb_parse_tree *new_tree;
- struct ldb_dn *new_base;
- struct ldb_result *newres;
- const char **newattrs;
- int mpret, ret;
- struct ldb_map_context *privdat = map_get_privdat(module);
- int i;
+ struct ldb_dn *dn, *newdn;
+ struct ldb_val newval;
- /*- search mapped database */
-
- new_tree = ldb_map_parse_tree(module, module, tree);
- if (new_tree == NULL) {
- /* All attributes used in the parse tree are
- * local, apparently. Fall back to enumerating the complete remote
- * database... Rather a slow search then no results. */
- new_tree = talloc_zero(module, struct ldb_parse_tree);
- new_tree->operation = LDB_OP_PRESENT;
- new_tree->u.present.attr = talloc_strdup(new_tree, "dn");
- return 0;
- }
-
- newattrs = ldb_map_attrs(module, attrs);
- new_base = map_local_dn(module, module, base);
-
- memset((char *)&(new_req), 0, sizeof(new_req));
- new_req.operation = LDB_SEARCH;
- new_req.op.search.base = new_base;
- new_req.op.search.scope = scope;
- new_req.op.search.tree = new_tree;
- new_req.op.search.attrs = newattrs;
-
- mpret = ldb_request(privdat->mapped_ldb, req);
-
- newres = new_req.op.search.res;
-
- talloc_free(new_base);
- talloc_free(new_tree);
- talloc_free(newattrs);
-
- if (mpret != LDB_SUCCESS) {
- ldb_set_errstring(module->ldb, ldb_errstring(privdat->mapped_ldb));
- return mpret;
- }
-
- /*
- - per returned record, search fallback database for additional data (by dn)
- - test if (full expression) is now true
- */
-
- res = talloc(module, struct ldb_result);
- req->op.search.res = res;
- res->msgs = talloc_array(module, struct ldb_message *, newres->count);
- res->count = newres->count;
-
- ret = 0;
-
- for (i = 0; i < mpret; i++) {
- struct ldb_request mergereq;
- struct ldb_message *merged;
- struct ldb_result *extrares = NULL;
- int extraret;
-
- /* Always get special DN's from the fallback database */
- if (ldb_dn_is_special(newres->msgs[i]->dn))
- continue;
-
- merged = ldb_map_message_incoming(module, attrs, newres->msgs[i]);
-
- /* Merge with additional data from fallback database */
- memset((char *)&(mergereq), 0, sizeof(mergereq)); /* zero off the request structure */
- mergereq.operation = LDB_SEARCH;
- mergereq.op.search.base = merged->dn;
- mergereq.op.search.scope = LDB_SCOPE_BASE;
- mergereq.op.search.tree = ldb_parse_tree(module, "");
- mergereq.op.search.attrs = NULL;
-
- extraret = ldb_next_request(module, &mergereq);
-
- extrares = mergereq.op.search.res;
-
- if (extraret == -1) {
- ldb_debug(module->ldb, LDB_DEBUG_ERROR, "Error searching for extra data!\n");
- } else if (extraret > 1) {
- ldb_debug(module->ldb, LDB_DEBUG_ERROR, "More than one result for extra data!\n");
- talloc_free(newres);
- return -1;
- } else if (extraret == 0) {
- ldb_debug(module->ldb, LDB_DEBUG_TRACE, "No extra data found for remote DN: %s", ldb_dn_linearize(merged, merged->dn));
- }
-
- if (extraret == 1) {
- int j;
- ldb_debug(module->ldb, LDB_DEBUG_TRACE, "Extra data found for remote DN: %s", ldb_dn_linearize(merged, merged->dn));
- for (j = 0; j < extrares->msgs[0]->num_elements; j++) {
- ldb_msg_add(merged, &(extrares->msgs[0]->elements[j]), extrares->msgs[0]->elements[j].flags);
- }
- }
-
- if (ldb_match_msg(module->ldb, merged, tree, base, scope) != 0) {
- res->msgs[ret] = merged;
- ret++;
- } else {
- ldb_debug(module->ldb, LDB_DEBUG_TRACE, "Discarded merged message because it did not match");
- }
- }
+ dn = ldb_dn_explode(mem_ctx, (char *)val->data);
+ newdn = ldb_dn_map_remote(module, mem_ctx, dn);
+ talloc_free(dn);
- talloc_free(newres);
+ newval.length = 0;
+ newval.data = (uint8_t *)ldb_dn_linearize(mem_ctx, newdn);
+ if (newval.data) {
+ newval.length = strlen((char *)newval.data);
+ }
+ talloc_free(newdn);
- res->count = ret;
- return LDB_SUCCESS;
+ return newval;
}
-
-/*
- search for matching records using a ldb_parse_tree
-*/
-static int map_search_bytree(struct ldb_module *module, struct ldb_request *req)
+/* Map an objectClass into the remote partition. */
+static struct ldb_val map_objectclass_convert_local(struct ldb_module *module, void *mem_ctx, const struct ldb_val *val)
{
- const struct ldb_dn *base = req->op.search.base;
- struct ldb_result *fbres, *mpres, *res;
- int i, ret;
+ const struct ldb_map_context *data = map_get_context(module);
+ const char *name = (char *)val->data;
+ const struct ldb_map_objectclass *map = map_objectclass_find_local(data, name);
+ struct ldb_val newval;
+
+ if (map) {
+ newval.data = (uint8_t*)talloc_strdup(mem_ctx, map->remote_name);
+ newval.length = strlen((char *)newval.data);
+ return newval;
+ }
- ret = map_search_fb(module, req);
- if (ret != LDB_SUCCESS)
- return ret;
+ return ldb_val_dup(mem_ctx, val);
+}
- /* special dn's are never mapped.. */
- if (ldb_dn_is_special(base)) {
- return ret;
+/* Generate a remote message with a mapped objectClass. */
+static void map_objectclass_generate_remote(struct ldb_module *module, const char *local_attr, const struct ldb_message *old, struct ldb_message *remote, struct ldb_message *local)
+{
+ struct ldb_message_element *el, *oc;
+ struct ldb_val val;
+ BOOL found_extensibleObject = False;
+ int i;
+
+ /* Find old local objectClass */
+ oc = ldb_msg_find_element(old, local_attr);
+ if (oc == NULL) {
+ return;
}
- fbres = req->op.search.res;
+ /* Prepare new element */
+ el = talloc_zero(remote, struct ldb_message_element);
+ if (el == NULL) {
+ ldb_oom(module->ldb);
+ return; /* TODO: fail? */
+ }
- ret = map_search_mp(module, req);
- if (ret != LDB_SUCCESS) {
- return ret;
+ /* Copy local objectClass element, reverse space for an extra value */
+ el->num_values = oc->num_values + 1;
+ el->values = talloc_array(el, struct ldb_val, el->num_values);
+ if (el->values == NULL) {
+ talloc_free(el);
+ ldb_oom(module->ldb);
+ return; /* TODO: fail? */
}
- mpres = req->op.search.res;
+ /* Copy local element name "objectClass" */
+ el->name = talloc_strdup(el, local_attr);
- /* Merge results */
- res = talloc(module, struct ldb_result);
- res->msgs = talloc_array(res, struct ldb_message *, fbres->count + mpres->count);
+ /* Convert all local objectClasses */
+ for (i = 0; i < el->num_values - 1; i++) {
+ el->values[i] = map_objectclass_convert_local(module, el->values, &oc->values[i]);
+ if (ldb_attr_cmp((char *)el->values[i].data, "extensibleObject") == 0) {
+ found_extensibleObject = True;
+ }
+ }
- ldb_debug(module->ldb, LDB_DEBUG_TRACE, "Merging %d mapped and %d fallback messages", mpres->count, fbres->count);
+ if (!found_extensibleObject) {
+ val.data = (uint8_t *)talloc_strdup(el->values, "extensibleObject");
+ val.length = strlen((char *)val.data);
- for (i = 0; i < fbres->count; i++) {
- res->msgs[i] = talloc_steal(res->msgs, fbres->msgs[i]);
- }
- for (i = 0; i < mpres->count; i++) {
- res->msgs[fbres->count + i] = talloc_steal(res->msgs, mpres->msgs[i]);
+ /* Append additional objectClass "extensibleObject" */
+ el->values[i] = val;
+ } else {
+ el->num_values--;
}
- res->count = fbres->count + mpres->count;
- return LDB_SUCCESS;
+ /* Add new objectClass to remote message */
+ ldb_msg_add(remote, el, 0);
}
-static int msg_contains_objectclass(const struct ldb_message *msg, const char *name)
+/* Map an objectClass into the local partition. */
+static struct ldb_val map_objectclass_convert_remote(struct ldb_module *module, void *mem_ctx, const struct ldb_val *val)
{
- struct ldb_message_element *el = ldb_msg_find_element(msg, "objectClass");
- int i;
-
- for (i = 0; i < el->num_values; i++) {
- if (ldb_attr_cmp((char *)el->values[i].data, name) == 0) {
- return 1;
- }
+ const struct ldb_map_context *data = map_get_context(module);
+ const char *name = (char *)val->data;
+ const struct ldb_map_objectclass *map = map_objectclass_find_remote(data, name);
+ struct ldb_val newval;
+
+ if (map) {
+ newval.data = (uint8_t*)talloc_strdup(mem_ctx, map->local_name);
+ newval.length = strlen((char *)newval.data);
+ return newval;
}
- return 0;
+ return ldb_val_dup(mem_ctx, val);
}
-/*
- add a record
-*/
-static int map_add(struct ldb_module *module, struct ldb_request *req)
+/* Generate a local message with a mapped objectClass. */
+static struct ldb_message_element *map_objectclass_generate_local(struct ldb_module *module, void *mem_ctx, const char *remote_attr, const struct ldb_message *remote)
{
- const struct ldb_message *msg = req->op.add.message;
- struct ldb_map_context *privdat = map_get_privdat(module);
- struct ldb_message *fb, *mp;
- struct ldb_message_element *ocs;
- int ret;
+ struct ldb_message_element *el, *oc;
+ struct ldb_val val;
int i;
- ldb_debug(module->ldb, LDB_DEBUG_TRACE, "ldb_map_add");
-
- if (ldb_dn_is_special(msg->dn)) {
- ldb_debug(module->ldb, LDB_DEBUG_TRACE, "ldb_map_add: Added fallback record");
- return ldb_next_request(module, req);
- }
-
- mp = talloc_zero(module, struct ldb_message);
- mp->dn = map_local_dn(module, mp, msg->dn);
-
- fb = talloc_zero(module, struct ldb_message);
- fb->dn = talloc_reference(fb, msg->dn);
-
- /* We add objectClass, so 'top' should be no problem */
- ldb_msg_add_string(mp, "objectClass", "top");
-
- /* make a list of remote objectclasses that can be used
- * given the attributes that are available and add to
- * mp_msg */
- for (i = 0; privdat->objectclass_maps[i].local_name; i++) {
- int j, has_musts, has_baseclasses;
-
- /* Add this objectClass to the list if all musts are present */
- for (j = 0; privdat->objectclass_maps[i].musts[j]; j++) {
- if (!map_msg_can_map_attr(module, msg, privdat->objectclass_maps[i].musts[j])) {
- ldb_debug(module->ldb, LDB_DEBUG_TRACE, "map_add: Not adding objectClass %s because it is not possible to create remote attribute %s", privdat->objectclass_maps[i].local_name, privdat->objectclass_maps[i].musts[j]);
- break;
- }
- }
+ /* Find old remote objectClass */
+ oc = ldb_msg_find_element(remote, remote_attr);
+ if (oc == NULL) {
+ return NULL;
+ }
- has_musts = (privdat->objectclass_maps[i].musts[j] == NULL);
+ /* Prepare new element */
+ el = talloc_zero(mem_ctx, struct ldb_message_element);
+ if (el == NULL) {
+ ldb_oom(module->ldb);
+ return NULL;
+ }
- /* Check if base classes are present as well */
- for (j = 0; privdat->objectclass_maps[i].base_classes[j]; j++) {
- if (!msg_contains_objectclass(mp, privdat->objectclass_maps[i].base_classes[j])) {
- ldb_debug(module->ldb, LDB_DEBUG_TRACE, "map_add: Not adding objectClass %s of missing base class %s", privdat->objectclass_maps[i].local_name, privdat->objectclass_maps[i].base_classes[j]);
- break;
- }
- }
+ /* Copy remote objectClass element */
+ el->num_values = oc->num_values;
+ el->values = talloc_array(el, struct ldb_val, el->num_values);
+ if (el->values == NULL) {
+ talloc_free(el);
+ ldb_oom(module->ldb);
+ return NULL;
+ }
+
+ /* Copy remote element name "objectClass" */
+ el->name = talloc_strdup(el, remote_attr);
+
+ /* Convert all remote objectClasses */
+ for (i = 0; i < el->num_values; i++) {
+ el->values[i] = map_objectclass_convert_remote(module, el->values, &oc->values[i]);
+ }
+
+ val.data = (uint8_t *)talloc_strdup(el->values, "extensibleObject");
+ val.length = strlen((char *)val.data);
- has_baseclasses = (privdat->objectclass_maps[i].base_classes[j] == NULL);
-
- /* Apparently, it contains all required elements */
- if (has_musts && has_baseclasses) {
- ldb_msg_add_string(mp, "objectClass", privdat->objectclass_maps[i].remote_name);
- ldb_debug(module->ldb, LDB_DEBUG_TRACE, "map_add: Adding objectClass %s", privdat->objectclass_maps[i].remote_name);
+ /* Remove last value if it was "extensibleObject" */
+ if (ldb_val_equal_exact(&val, &el->values[i-1])) {
+ el->num_values--;
+ el->values = talloc_realloc(el, el->values, struct ldb_val, el->num_values);
+ if (el->values == NULL) {
+ talloc_free(el);
+ ldb_oom(module->ldb);
+ return NULL;
}
}
- ocs = ldb_msg_find_element(mp, "objectClass");
- if (ocs->num_values == 1) { /* Only top */
- ldb_debug(module->ldb, LDB_DEBUG_TRACE, "ldb_map_add: Added fallback record");
- return ldb_next_request(module, req);
- }
-
- /*
- * - try to map as much attributes as possible where allowed and add them to mp_msg
- * - add other attributes to fb_msg
- */
- for (i = 0; i < msg->num_elements; i++) {
- const struct ldb_map_attribute *attr;
- struct ldb_message_element *elm = NULL;
- int j, k;
- int mapped = 0;
-
- if (ldb_attr_cmp(msg->elements[i].name, "objectClass") == 0)
- continue;
-
- /* Loop over all attribute_maps with msg->elements[i].name as local_name */
- for (k = 0; privdat->attribute_maps[k].local_name; k++) {
- if (ldb_attr_cmp(msg->elements[i].name, privdat->attribute_maps[k].local_name) != 0)
- continue;
-
- attr = &privdat->attribute_maps[k];
-
- /* Decide whether or not we need to map or fallback */
- switch (attr->type) {
- case MAP_GENERATE:
- ldb_debug(module->ldb, LDB_DEBUG_TRACE, "Generating from %s", attr->local_name);
- attr->u.generate.generate_remote(module, attr->local_name, msg, mp, fb);
- mapped++;
- continue;
- case MAP_KEEP:
- if (!map_msg_valid_attr(module, mp, attr->local_name))
- continue;
- break;
- case MAP_IGNORE: continue;
- case MAP_CONVERT:
- case MAP_RENAME:
- if (!map_msg_valid_attr(module, mp, attr->u.rename.remote_name))
- continue;
- break;
- }
+ return el;
+}
- switch (attr->type) {
- case MAP_KEEP:
- ldb_debug(module->ldb, LDB_DEBUG_TRACE, "Keeping %s", attr->local_name);
- elm = talloc(fb, struct ldb_message_element);
- elm->num_values = msg->elements[i].num_values;
- elm->values = talloc_array(elm, struct ldb_val, elm->num_values);
- for (j = 0; j < elm->num_values; j++) {
- elm->values[j] = ldb_val_dup(elm, &msg->elements[i].values[j]);
- }
+/* Auxiliary request construction
+ * ============================== */
- elm->name = talloc_strdup(elm, msg->elements[i].name);
- break;
+/* Store the DN of a single search result in context. */
+static int map_search_self_callback(struct ldb_context *ldb, void *context, struct ldb_reply *ares)
+{
+ struct map_context *ac;
- case MAP_RENAME:
- ldb_debug(module->ldb, LDB_DEBUG_TRACE, "Renaming %s -> %s", attr->local_name, attr->u.rename.remote_name);
- elm = talloc(mp, struct ldb_message_element);
+ if (context == NULL || ares == NULL) {
+ ldb_set_errstring(ldb, talloc_asprintf(ldb, "NULL Context or Result in callback"));
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
- elm->name = talloc_strdup(elm, attr->u.rename.remote_name);
- elm->num_values = msg->elements[i].num_values;
- elm->values = talloc_array(elm, struct ldb_val, elm->num_values);
+ ac = talloc_get_type(context, struct map_context);
- for (j = 0; j < elm->num_values; j++) {
- elm->values[j] = ldb_val_dup(elm, &msg->elements[i].values[j]);
- }
- break;
+ /* We are interested only in the single reply */
+ if (ares->type != LDB_REPLY_ENTRY) {
+ talloc_free(ares);
+ return LDB_SUCCESS;
+ }
- case MAP_CONVERT:
- if (attr->u.convert.convert_local == NULL)
- continue;
- ldb_debug(module->ldb, LDB_DEBUG_TRACE, "Converting %s -> %s", attr->local_name, attr->u.convert.remote_name);
- elm = talloc(mp, struct ldb_message_element);
+ /* We have already found a remote DN */
+ if (ac->local_dn) {
+ ldb_set_errstring(ldb, talloc_asprintf(ldb, "Too many results to base search"));
+ talloc_free(ares);
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
- elm->name = talloc_strdup(elm, attr->u.rename.remote_name);
- elm->num_values = msg->elements[i].num_values;
- elm->values = talloc_array(elm, struct ldb_val, elm->num_values);
+ /* Store local DN */
+ ac->local_dn = ares->message->dn;
- for (j = 0; j < elm->num_values; j++) {
- elm->values[j] = attr->u.convert.convert_local(module, mp, &msg->elements[i].values[j]);
- }
+ return LDB_SUCCESS;
+}
- break;
-
- case MAP_GENERATE:
- case MAP_IGNORE:
- ldb_debug(module->ldb, LDB_DEBUG_FATAL, "This line should never be reached");
- continue;
- }
-
- ldb_msg_add(mp, elm, 0);
- mapped++;
- }
-
- if (mapped == 0) {
- ldb_debug(module->ldb, LDB_DEBUG_TRACE, "Fallback storing %s", msg->elements[i].name);
- elm = talloc(fb, struct ldb_message_element);
-
- elm->num_values = msg->elements[i].num_values;
- elm->values = talloc_reference(elm, msg->elements[i].values);
- elm->name = talloc_strdup(elm, msg->elements[i].name);
-
- ldb_msg_add(fb, elm, 0);
- }
+/* Build a request to search a record by its DN. */
+struct ldb_request *map_search_base_req(struct map_context *ac, const struct ldb_dn *dn, const char * const *attrs, const struct ldb_parse_tree *tree, void *context, ldb_search_callback callback)
+{
+ struct ldb_request *req;
+
+ req = talloc_zero(ac, struct ldb_request);
+ if (req == NULL) {
+ map_oom(ac->module);
+ return NULL;
}
- ret = ldb_add(privdat->mapped_ldb, mp);
- if (ret == -1) {
- ldb_debug(module->ldb, LDB_DEBUG_WARNING, "Adding mapped record failed: %s", ldb_errstring(privdat->mapped_ldb));
- return -1;
+ req->operation = LDB_SEARCH;
+ req->op.search.base = dn;
+ req->op.search.scope = LDB_SCOPE_BASE;
+ req->op.search.attrs = attrs;
+
+ if (tree) {
+ req->op.search.tree = tree;
+ } else {
+ req->op.search.tree = ldb_parse_tree(req, NULL);
+ if (req->op.search.tree == NULL) {
+ talloc_free(req);
+ return NULL;
+ }
}
- ldb_debug(module->ldb, LDB_DEBUG_TRACE, "ldb_map_add: Added mapped record");
+ req->controls = NULL;
+ req->context = context;
+ req->callback = callback;
+ ldb_set_timeout_from_prev_req(ac->module->ldb, ac->orig_req, req);
- ldb_msg_add_string(fb, "isMapped", "TRUE");
+ return req;
+}
- req->op.add.message = fb;
- ret = ldb_next_request(module, req);
- req->op.add.message = msg;
- if (ret == -1) {
- ldb_debug(module->ldb, LDB_DEBUG_WARNING, "Adding fallback record failed: %s", ldb_errstring(module->ldb));
- return -1;
+/* Build a request to search the local record by its DN. */
+struct ldb_request *map_search_self_req(struct map_context *ac, const struct ldb_dn *dn)
+{
+ /* attrs[] is returned from this function in
+ * ac->search_req->op.search.attrs, so it must be static, as
+ * otherwise the compiler can put it on the stack */
+ static const char * const attrs[] = { IS_MAPPED, NULL };
+ struct ldb_parse_tree *tree;
+
+ /* Limit search to records with 'IS_MAPPED' present */
+ /* TODO: `tree = ldb_parse_tree(ac, IS_MAPPED);' won't do. */
+ tree = talloc_zero(ac, struct ldb_parse_tree);
+ if (tree == NULL) {
+ map_oom(ac->module);
+ return NULL;
}
- talloc_free(fb);
- talloc_free(mp);
+ tree->operation = LDB_OP_PRESENT;
+ tree->u.present.attr = talloc_strdup(tree, IS_MAPPED);
- return ret;
+ return map_search_base_req(ac, dn, attrs, tree, ac, map_search_self_callback);
}
-
-/*
- modify a record
-*/
-static int map_modify(struct ldb_module *module, struct ldb_request *req)
+/* Build a request to update the 'IS_MAPPED' attribute */
+struct ldb_request *map_build_fixup_req(struct map_context *ac, const struct ldb_dn *olddn, const struct ldb_dn *newdn)
{
- const struct ldb_message *msg = req->op.mod.message;
- struct ldb_map_context *privdat = map_get_privdat(module);
- struct ldb_message *fb, *mp;
- struct ldb_message_element *elm;
- int fb_ret, mp_ret;
- int i,j;
-
- ldb_debug(module->ldb, LDB_DEBUG_TRACE, "ldb_map_modify");
-
- if (ldb_dn_is_special(msg->dn))
- return ldb_next_request(module, req);
-
- fb = talloc_zero(module, struct ldb_message);
- fb->dn = talloc_reference(fb, msg->dn);
-
- mp = talloc_zero(module, struct ldb_message);
- mp->dn = map_local_dn(module, mp, msg->dn);
-
- /* Loop over mi and call generate_remote for each attribute */
- for (i = 0; i < msg->num_elements; i++) {
- const struct ldb_map_attribute *attr;
- int k;
- int mapped = 0;
-
- if (ldb_attr_cmp(msg->elements[i].name, "isMapped") == 0)
- continue;
-
- for (k = 0; privdat->attribute_maps[k].local_name; k++)
- {
- if (ldb_attr_cmp(privdat->attribute_maps[k].local_name, msg->elements[i].name) != 0)
- continue;
-
- attr = &privdat->attribute_maps[k];
-
- switch (attr->type) {
- case MAP_IGNORE: continue;
- case MAP_RENAME:
- elm = talloc(mp, struct ldb_message_element);
-
- elm->name = talloc_strdup(elm, attr->u.rename.remote_name);
- elm->num_values = msg->elements[i].num_values;
- elm->values = talloc_array(elm, struct ldb_val, elm->num_values);
- for (j = 0; j < elm->num_values; j++) {
- elm->values[j] = msg->elements[i].values[j];
- }
-
- ldb_msg_add(mp, elm, msg->elements[i].flags);
- mapped++;
- continue;
-
- case MAP_CONVERT:
- if (!attr->u.convert.convert_local)
- continue;
- elm = talloc(mp, struct ldb_message_element);
-
- elm->name = talloc_strdup(elm, attr->u.rename.remote_name);
- elm->num_values = msg->elements[i].num_values;
- elm->values = talloc_array(elm, struct ldb_val, elm->num_values);
-
- for (j = 0; j < elm->num_values; j++) {
- elm->values[j] = attr->u.convert.convert_local(module, mp, &msg->elements[i].values[j]);
- }
-
- ldb_msg_add(mp, elm, msg->elements[i].flags);
- mapped++;
- continue;
-
- case MAP_KEEP:
- elm = talloc(mp, struct ldb_message_element);
-
- elm->num_values = msg->elements[i].num_values;
- elm->values = talloc_array(elm, struct ldb_val, elm->num_values);
- for (j = 0; j < elm->num_values; j++) {
- elm->values[j] = msg->elements[i].values[j];
- }
-
- elm->name = talloc_strdup(elm, msg->elements[i].name);
-
- ldb_msg_add(mp, elm, msg->elements[i].flags);
- mapped++;
- continue;
-
- case MAP_GENERATE:
- attr->u.generate.generate_remote(module, attr->local_name, msg, mp, fb);
- mapped++;
- continue;
- }
- }
+ struct ldb_request *req;
+ struct ldb_message *msg;
+ const char *dn;
+
+ /* Prepare request */
+ req = talloc_zero(ac, struct ldb_request);
+ if (req == NULL) {
+ map_oom(ac->module);
+ return NULL;
+ }
- if (mapped == 0) {/* Add to fallback message */
- elm = talloc(fb, struct ldb_message_element);
+ /* Prepare message */
+ msg = ldb_msg_new(req);
+ if (msg == NULL) {
+ map_oom(ac->module);
+ goto failed;
+ }
- elm->num_values = msg->elements[i].num_values;
- elm->values = talloc_reference(elm, msg->elements[i].values);
- elm->name = talloc_strdup(elm, msg->elements[i].name);
-
- ldb_msg_add(fb, elm, msg->elements[i].flags);
- }
+ /* Update local 'IS_MAPPED' to the new remote DN */
+ msg->dn = discard_const_p(struct ldb_dn, olddn);
+ dn = ldb_dn_linearize(msg, newdn);
+ if (dn == NULL) {
+ goto failed;
+ }
+ if (ldb_msg_add_empty(msg, IS_MAPPED, LDB_FLAG_MOD_REPLACE) != 0) {
+ goto failed;
+ }
+ if (ldb_msg_add_string(msg, IS_MAPPED, dn) != 0) {
+ goto failed;
}
- if (fb->num_elements > 0) {
- ldb_debug(module->ldb, LDB_DEBUG_TRACE, "Modifying fallback record with %d elements", fb->num_elements);
- req->op.mod.message = fb;
- fb_ret = ldb_next_request(module, req);
- if (fb_ret == -1) {
- ldb_msg_add_string(fb, "isMapped", "TRUE");
- req->operation = LDB_ADD;
- req->op.add.message = fb;
- fb_ret = ldb_next_request(module, req);
- req->operation = LDB_MODIFY;
- }
- req->op.mod.message = msg;
- } else fb_ret = 0;
- talloc_free(fb);
+ req->operation = LDB_MODIFY;
+ req->op.mod.message = msg;
+ req->controls = NULL;
+ req->handle = NULL;
+ req->context = NULL;
+ req->callback = NULL;
- if (mp->num_elements > 0) {
- ldb_debug(module->ldb, LDB_DEBUG_TRACE, "Modifying mapped record with %d elements", mp->num_elements);
- mp_ret = ldb_modify(privdat->mapped_ldb, mp);
- } else mp_ret = 0;
- talloc_free(mp);
+ return req;
- return (mp_ret == -1 || fb_ret == -1)?-1:0;
+failed:
+ talloc_free(req);
+ return NULL;
}
-static int map_request(struct ldb_module *module, struct ldb_request *req)
+/* Asynchronous call structure
+ * =========================== */
+
+/* Figure out which request is currently pending. */
+static struct ldb_request *map_get_req(struct map_context *ac)
{
- switch (req->operation) {
+ switch (ac->step) {
+ case MAP_SEARCH_SELF_MODIFY:
+ case MAP_SEARCH_SELF_DELETE:
+ case MAP_SEARCH_SELF_RENAME:
+ return ac->search_req;
+
+ case MAP_ADD_REMOTE:
+ case MAP_MODIFY_REMOTE:
+ case MAP_DELETE_REMOTE:
+ case MAP_RENAME_REMOTE:
+ return ac->remote_req;
+
+ case MAP_RENAME_FIXUP:
+ return ac->down_req;
+
+ case MAP_ADD_LOCAL:
+ case MAP_MODIFY_LOCAL:
+ case MAP_DELETE_LOCAL:
+ case MAP_RENAME_LOCAL:
+ return ac->local_req;
+
+ case MAP_SEARCH_REMOTE:
+ /* Can't happen */
+ break;
+ }
- case LDB_SEARCH:
- return map_search_bytree(module, req);
+ return NULL; /* unreachable; silences a warning */
+}
- case LDB_ADD:
- return map_add(module, req);
+typedef int (*map_next_function)(struct ldb_handle *handle);
- case LDB_MODIFY:
- return map_modify(module, req);
+/* Figure out the next request to run. */
+static map_next_function map_get_next(struct map_context *ac)
+{
+ switch (ac->step) {
+ case MAP_SEARCH_REMOTE:
+ return NULL;
- case LDB_DELETE:
- return map_delete(module, req);
+ case MAP_ADD_LOCAL:
+ return map_add_do_remote;
+ case MAP_ADD_REMOTE:
+ return NULL;
- case LDB_RENAME:
- return map_rename(module, req);
+ case MAP_SEARCH_SELF_MODIFY:
+ return map_modify_do_local;
+ case MAP_MODIFY_LOCAL:
+ return map_modify_do_remote;
+ case MAP_MODIFY_REMOTE:
+ return NULL;
- default:
- return ldb_next_request(module, req);
+ case MAP_SEARCH_SELF_DELETE:
+ return map_delete_do_local;
+ case MAP_DELETE_LOCAL:
+ return map_delete_do_remote;
+ case MAP_DELETE_REMOTE:
+ return NULL;
+ case MAP_SEARCH_SELF_RENAME:
+ return map_rename_do_local;
+ case MAP_RENAME_LOCAL:
+ return map_rename_do_fixup;
+ case MAP_RENAME_FIXUP:
+ return map_rename_do_remote;
+ case MAP_RENAME_REMOTE:
+ return NULL;
}
-}
-
-static const struct ldb_module_ops map_ops = {
- .name = "map",
- .request = map_request
-};
+ return NULL; /* unreachable; silences a warning */
+}
-static char *map_find_url(struct ldb_context *ldb, const char *name)
+/* Wait for the current pending request to finish and continue with the next. */
+static int map_wait_next(struct ldb_handle *handle)
{
- const char * const attrs[] = { "@MAP_URL" , NULL};
- struct ldb_result *result = NULL;
- struct ldb_dn *mods;
- char *url;
+ struct map_context *ac;
+ struct ldb_request *req;
+ map_next_function next;
int ret;
- mods = ldb_dn_string_compose(ldb, NULL, "@MAP=%s", name);
- if (mods == NULL) {
- ldb_debug(ldb, LDB_DEBUG_ERROR, "Can't construct DN");
- return NULL;
+ if (handle == NULL || handle->private_data == NULL) {
+ return LDB_ERR_OPERATIONS_ERROR;
}
- ret = ldb_search(ldb, mods, LDB_SCOPE_BASE, "", attrs, &result);
- talloc_free(mods);
- if (ret != LDB_SUCCESS || result->count == 0) {
- ldb_debug(ldb, LDB_DEBUG_ERROR, "Not enough results found looking for @MAP");
- return NULL;
+ if (handle->state == LDB_ASYNC_DONE) {
+ return handle->status;
}
- url = talloc_strdup(ldb, ldb_msg_find_string(result->msgs[0], "@MAP_URL", NULL));
+ handle->state = LDB_ASYNC_PENDING;
+ handle->status = LDB_SUCCESS;
- talloc_free(result);
+ ac = talloc_get_type(handle->private_data, struct map_context);
- return url;
-}
+ if (ac->step == MAP_SEARCH_REMOTE) {
+ int i;
+ for (i = 0; i < ac->num_searches; i++) {
+ req = ac->search_reqs[i];
+ ret = ldb_wait(req->handle, LDB_WAIT_NONE);
-/* the init function */
-struct ldb_module *ldb_map_init(struct ldb_context *ldb, const struct ldb_map_attribute *attrs, const struct ldb_map_objectclass *ocls, const char *name)
-{
- int i, j;
- struct ldb_module *ctx;
- struct map_private *data;
- char *url;
+ if (ret != LDB_SUCCESS) {
+ handle->status = ret;
+ goto done;
+ }
+ if (req->handle->status != LDB_SUCCESS) {
+ handle->status = req->handle->status;
+ goto done;
+ }
+ if (req->handle->state != LDB_ASYNC_DONE) {
+ return LDB_SUCCESS;
+ }
+ }
+ } else {
- ctx = talloc(ldb, struct ldb_module);
- if (!ctx)
- return NULL;
+ req = map_get_req(ac);
- data = talloc(ctx, struct map_private);
- if (!data) {
- talloc_free(ctx);
- return NULL;
- }
+ ret = ldb_wait(req->handle, LDB_WAIT_NONE);
- data->context.mapped_ldb = ldb_init(data);
- ldb_set_debug(data->context.mapped_ldb, ldb->debug_ops.debug, ldb->debug_ops.context);
- url = map_find_url(ldb, name);
+ if (ret != LDB_SUCCESS) {
+ handle->status = ret;
+ goto done;
+ }
+ if (req->handle->status != LDB_SUCCESS) {
+ handle->status = req->handle->status;
+ goto done;
+ }
+ if (req->handle->state != LDB_ASYNC_DONE) {
+ return LDB_SUCCESS;
+ }
- if (!url) {
- ldb_debug(ldb, LDB_DEBUG_FATAL, "@MAP=%s not set!\n", name);
- return NULL;
+ next = map_get_next(ac);
+ if (next) {
+ return next(handle);
+ }
}
- if (ldb_connect(data->context.mapped_ldb, url, 0, NULL) != 0) {
- ldb_debug(ldb, LDB_DEBUG_FATAL, "Unable to open mapped database for %s at '%s'\n", name, url);
- return NULL;
- }
+ ret = LDB_SUCCESS;
- talloc_free(url);
+done:
+ handle->state = LDB_ASYNC_DONE;
+ return ret;
+}
- /* Get list of attribute maps */
- j = 0;
- data->context.attribute_maps = NULL;
+/* Wait for all current pending requests to finish. */
+static int map_wait_all(struct ldb_handle *handle)
+{
+ int ret;
- for (i = 0; attrs[i].local_name; i++) {
- data->context.attribute_maps = talloc_realloc(data, data->context.attribute_maps, struct ldb_map_attribute, j+1);
- data->context.attribute_maps[j] = attrs[i];
- j++;
+ while (handle->state != LDB_ASYNC_DONE) {
+ ret = map_wait_next(handle);
+ if (ret != LDB_SUCCESS) {
+ return ret;
+ }
}
- for (i = 0; builtin_attribute_maps[i].local_name; i++) {
- data->context.attribute_maps = talloc_realloc(data, data->context.attribute_maps, struct ldb_map_attribute, j+1);
- data->context.attribute_maps[j] = builtin_attribute_maps[i];
- j++;
+ return handle->status;
+}
+
+/* Wait for pending requests to finish. */
+static int map_wait(struct ldb_handle *handle, enum ldb_wait_type type)
+{
+ if (type == LDB_WAIT_ALL) {
+ return map_wait_all(handle);
+ } else {
+ return map_wait_next(handle);
}
+}
- data->context.attribute_maps = talloc_realloc(data, data->context.attribute_maps, struct ldb_map_attribute, j+1);
- memset(&data->context.attribute_maps[j], 0, sizeof(struct ldb_map_attribute));
- data->context.objectclass_maps = ocls;
- ctx->private_data = data;
- ctx->ldb = ldb;
- ctx->prev = ctx->next = NULL;
- ctx->ops = &map_ops;
+/* Module initialization
+ * ===================== */
- return ctx;
-}
+/* Provided module operations */
+static const struct ldb_module_ops map_ops = {
+ .name = "ldb_map",
+ .add = map_add,
+ .modify = map_modify,
+ .del = map_delete,
+ .rename = map_rename,
+ .search = map_search,
+ .wait = map_wait,
+};
+
+/* Builtin mappings for DNs and objectClasses */
+static const struct ldb_map_attribute builtin_attribute_maps[] = {
+ {
+ .local_name = "dn",
+ .type = MAP_CONVERT,
+ .u = {
+ .convert = {
+ .remote_name = "dn",
+ .convert_local = ldb_dn_convert_local,
+ .convert_remote = ldb_dn_convert_remote,
+ },
+ },
+ },
+ {
+ .local_name = "objectclass",
+ .type = MAP_GENERATE,
+ .u = {
+ .generate = {
+ .remote_names = { "objectclass", NULL },
+ .generate_local = map_objectclass_generate_local,
+ .generate_remote = map_objectclass_generate_remote,
+ },
+ },
+ },
+ {
+ .local_name = NULL,
+ }
+};
-static struct ldb_val map_convert_local_dn(struct ldb_module *module, TALLOC_CTX *ctx, const struct ldb_val *val)
+/* Find the special 'MAP_DN_NAME' record and store local and remote
+ * base DNs in private data. */
+static int map_init_dns(struct ldb_module *module, struct ldb_map_context *data, const char *name)
{
- struct ldb_dn *dn, *newdn;
- struct ldb_val *newval;
+ static const char * const attrs[] = { MAP_DN_FROM, MAP_DN_TO, NULL };
+ struct ldb_dn *dn;
+ struct ldb_message *msg;
+ struct ldb_result *res;
+ int ret;
- dn = ldb_dn_explode(ctx, (char *)val->data);
+ if (!name) {
+ data->local_base_dn = NULL;
+ data->remote_base_dn = NULL;
+ return LDB_SUCCESS;
+ }
- newdn = map_local_dn(module, ctx, dn);
+ dn = ldb_dn_string_compose(data, NULL, "%s=%s", MAP_DN_NAME, name);
+ if (dn == NULL) {
+ ldb_debug(module->ldb, LDB_DEBUG_ERROR, "ldb_map: "
+ "Failed to construct '%s' DN!\n", MAP_DN_NAME);
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+ ret = ldb_search(module->ldb, dn, LDB_SCOPE_BASE, NULL, attrs, &res);
talloc_free(dn);
-
- newval = talloc(ctx, struct ldb_val);
- newval->data = (uint8_t *)ldb_dn_linearize(ctx, newdn);
- if (newval->data) {
- newval->length = strlen((char *)newval->data);
- } else {
- newval->length = 0;
+ if (ret != LDB_SUCCESS) {
+ return ret;
+ }
+ if (res->count == 0) {
+ ldb_debug(module->ldb, LDB_DEBUG_ERROR, "ldb_map: "
+ "No results for '%s=%s'!\n", MAP_DN_NAME, name);
+ return LDB_ERR_CONSTRAINT_VIOLATION;
+ }
+ if (res->count > 1) {
+ ldb_debug(module->ldb, LDB_DEBUG_ERROR, "ldb_map: "
+ "Too many results for '%s=%s'!\n", MAP_DN_NAME, name);
+ return LDB_ERR_CONSTRAINT_VIOLATION;
}
- talloc_free(newdn);
+ msg = res->msgs[0];
+ data->local_base_dn = ldb_msg_find_attr_as_dn(data, msg, MAP_DN_FROM);
+ data->remote_base_dn = ldb_msg_find_attr_as_dn(data, msg, MAP_DN_TO);
+ talloc_free(res);
- return *newval;
+ return LDB_SUCCESS;
}
-static struct ldb_val map_convert_remote_dn(struct ldb_module *module, TALLOC_CTX *ctx, const struct ldb_val *val)
+/* Store attribute maps and objectClass maps in private data. */
+static int map_init_maps(struct ldb_module *module, struct ldb_map_context *data, const struct ldb_map_attribute *attrs, const struct ldb_map_objectclass *ocls)
{
- struct ldb_dn *dn, *newdn;
- struct ldb_val *newval;
-
- dn = ldb_dn_explode(ctx, (char *)val->data);
-
- newdn = map_remote_dn(module, ctx, dn);
+ int i, j, last;
+ last = 0;
+
+ /* Count specified attribute maps */
+ for (i = 0; attrs[i].local_name; i++) /* noop */ ;
+ /* Count built-in attribute maps */
+ for (j = 0; builtin_attribute_maps[j].local_name; j++) /* noop */ ;
+
+ /* Store list of attribute maps */
+ data->attribute_maps = talloc_array(data, struct ldb_map_attribute, i+j+1);
+ if (data->attribute_maps == NULL) {
+ map_oom(module);
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
- talloc_free(dn);
+ /* Specified ones go first */
+ for (i = 0; attrs[i].local_name; i++) {
+ data->attribute_maps[last] = attrs[i];
+ last++;
+ }
- newval = talloc(ctx, struct ldb_val);
- newval->data = (uint8_t *)ldb_dn_linearize(ctx, newdn);
- if (newval->data) {
- newval->length = strlen((char *)newval->data);
- } else {
- newval->length = 0;
+ /* Built-in ones go last */
+ for (i = 0; builtin_attribute_maps[i].local_name; i++) {
+ data->attribute_maps[last] = builtin_attribute_maps[i];
+ last++;
}
- talloc_free(newdn);
+ /* Ensure 'local_name == NULL' for the last entry */
+ memset(&data->attribute_maps[last], 0, sizeof(struct ldb_map_attribute));
- return *newval;
+ /* Store list of objectClass maps */
+ data->objectclass_maps = ocls;
+
+ return LDB_SUCCESS;
}
-static struct ldb_val map_convert_local_objectclass(struct ldb_module *module, TALLOC_CTX *ctx, const struct ldb_val *val)
+/* Copy the list of provided module operations. */
+struct ldb_module_ops ldb_map_get_ops(void)
{
- int i;
- struct ldb_map_context *map = module->private_data;
+ return map_ops;
+}
- for (i = 0; map->objectclass_maps[i].local_name; i++) {
- if (!strcmp(map->objectclass_maps[i].local_name, (char *)val->data)) {
- struct ldb_val newval;
- newval.data = (uint8_t*)talloc_strdup(ctx, map->objectclass_maps[i].remote_name);
- newval.length = strlen((char *)newval.data);
+/* Initialize global private data. */
+int ldb_map_init(struct ldb_module *module, const struct ldb_map_attribute *attrs, const struct ldb_map_objectclass *ocls, const char *name)
+{
+ struct map_private *data;
+ int ret;
- return ldb_val_dup(ctx, &newval);
- }
+ /* Prepare private data */
+ data = talloc_zero(module, struct map_private);
+ if (data == NULL) {
+ map_oom(module);
+ return LDB_ERR_OPERATIONS_ERROR;
}
- return ldb_val_dup(ctx, val);
-}
-
-static struct ldb_val map_convert_remote_objectclass(struct ldb_module *module, TALLOC_CTX *ctx, const struct ldb_val *val)
-{
- int i;
- struct ldb_map_context *map = module->private_data;
+ module->private_data = data;
- for (i = 0; map->objectclass_maps[i].remote_name; i++) {
- if (!strcmp(map->objectclass_maps[i].remote_name, (char *)val->data)) {
- struct ldb_val newval;
- newval.data = (uint8_t*)talloc_strdup(ctx, map->objectclass_maps[i].local_name);
- newval.length = strlen((char *)newval.data);
+ /* Store local and remote baseDNs */
+ ret = map_init_dns(module, &(data->context), name);
+ if (ret != LDB_SUCCESS) {
+ talloc_free(data);
+ return ret;
+ }
- return ldb_val_dup(ctx, &newval);
- }
+ /* Store list of attribute and objectClass maps */
+ ret = map_init_maps(module, &(data->context), attrs, ocls);
+ if (ret != LDB_SUCCESS) {
+ talloc_free(data);
+ return ret;
}
- return ldb_val_dup(ctx, val);
+ return LDB_SUCCESS;
}
+/* Usage note for initialization of this module:
+ *
+ * ldb_map is meant to be used from a different module that sets up
+ * the mappings and gets registered in ldb.
+ *
+ * 'ldb_map_init' initializes the private data of this module and
+ * stores the attribute and objectClass maps in there. It also looks
+ * up the '@MAP' special DN so requests can be redirected to the
+ * remote partition.
+ *
+ * This function should be called from the 'init_context' op of the
+ * module using ldb_map.
+ *
+ * 'ldb_map_get_ops' returns a copy of ldb_maps module operations.
+ *
+ * It should be called from the initialize function of the using
+ * module, which should then override the 'init_context' op with a
+ * function making the appropriate calls to 'ldb_map_init'.
+ */
diff --git a/source4/lib/ldb/modules/ldb_map.h b/source4/lib/ldb/modules/ldb_map.h
index 36165a260b..f9e2086ee1 100644
--- a/source4/lib/ldb/modules/ldb_map.h
+++ b/source4/lib/ldb/modules/ldb_map.h
@@ -2,7 +2,8 @@
ldb database library - map backend
Copyright (C) Jelmer Vernooij 2005
- Development sponsored by the Google Summer of Code program
+ Copyright (C) Martin Kuehl <mkhl@samba.org> 2006
+ Development sponsored by the Google Summer of Code program
** NOTE! The following LGPL license applies to the ldb
** library. This does NOT imply that all of Samba is released
@@ -15,12 +16,12 @@
This library 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
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef __LDB_MAP_H__
@@ -39,10 +40,21 @@
* while returning too many attributes in ldb_search() doesn't)
*/
+
+/* Name of the internal attribute pointing from the local to the
+ * remote part of a record */
+#define IS_MAPPED "isMapped"
+
+
struct ldb_map_context;
-struct ldb_map_attribute
-{
+/* convert a local ldb_val to a remote ldb_val */
+typedef struct ldb_val (*ldb_map_convert_func) (struct ldb_module *module, void *mem_ctx, const struct ldb_val *val);
+
+#define LDB_MAP_MAX_REMOTE_NAMES 10
+
+/* map from local to remote attribute */
+struct ldb_map_attribute {
const char *local_name; /* local name */
enum ldb_map_attr_type {
@@ -55,8 +67,8 @@ struct ldb_map_attribute
multiple remote attributes. */
} type;
- /* if set, will be called for expressions that contain this attribute */
- struct ldb_parse_tree *(*convert_operator) (struct ldb_map_context *, TALLOC_CTX *ctx, const struct ldb_parse_tree *);
+ /* if set, will be called for search expressions that contain this attribute */
+ struct ldb_parse_tree *(*convert_operator)(const struct ldb_map_context *, TALLOC_CTX *ctx, const struct ldb_parse_tree *);
union {
struct {
@@ -65,43 +77,46 @@ struct ldb_map_attribute
struct {
const char *remote_name;
- struct ldb_val (*convert_local) (struct ldb_module *, TALLOC_CTX *, const struct ldb_val *);
-
+
+ /* Convert local to remote data */
+ ldb_map_convert_func convert_local;
+
+ /* Convert remote to local data */
/* an entry can have convert_remote set to NULL, as long as there as an entry with the same local_name
* that is non-NULL before it. */
- struct ldb_val (*convert_remote) (struct ldb_module *, TALLOC_CTX *, const struct ldb_val *);
+ ldb_map_convert_func convert_remote;
} convert;
struct {
/* Generate the local attribute from remote message */
- struct ldb_message_element *(*generate_local) (
- struct ldb_module *,
- TALLOC_CTX *ctx,
- const char *attr,
- const struct ldb_message *remote);
+ struct ldb_message_element *(*generate_local)(struct ldb_module *, TALLOC_CTX *mem_ctx, const char *remote_attr, const struct ldb_message *remote);
/* Update remote message with information from local message */
- void (*generate_remote) (
- struct ldb_module *,
- const char *local_attr,
- const struct ldb_message *local,
- struct ldb_message *remote_mp,
- struct ldb_message *remote_fb);
+ void (*generate_remote)(struct ldb_module *, const char *local_attr, const struct ldb_message *old, struct ldb_message *remote, struct ldb_message *local);
/* Name(s) for this attribute on the remote server. This is an array since
* one local attribute's data can be split up into several attributes
* remotely */
-#define LDB_MAP_MAX_REMOTE_NAMES 10
const char *remote_names[LDB_MAP_MAX_REMOTE_NAMES];
+
+ /* Names of additional remote attributes
+ * required for the generation. NULL
+ * indicates that `local_attr' suffices. */
+ /*
+#define LDB_MAP_MAX_SELF_ATTRIBUTES 10
+ const char *self_attrs[LDB_MAP_MAX_SELF_ATTRIBUTES];
+ */
} generate;
} u;
};
-#define LDB_MAP_MAX_SUBCLASSES 10
-#define LDB_MAP_MAX_MUSTS 10
-#define LDB_MAP_MAX_MAYS 50
-struct ldb_map_objectclass
-{
+
+#define LDB_MAP_MAX_SUBCLASSES 10
+#define LDB_MAP_MAX_MUSTS 10
+#define LDB_MAP_MAX_MAYS 50
+
+/* map from local to remote objectClass */
+struct ldb_map_objectclass {
const char *local_name;
const char *remote_name;
const char *base_classes[LDB_MAP_MAX_SUBCLASSES];
@@ -109,12 +124,26 @@ struct ldb_map_objectclass
const char *mays[LDB_MAP_MAX_MAYS];
};
-struct ldb_map_context
-{
+
+/* private context data */
+struct ldb_map_context {
struct ldb_map_attribute *attribute_maps;
/* NOTE: Always declare base classes first here */
const struct ldb_map_objectclass *objectclass_maps;
- struct ldb_context *mapped_ldb;
+ /* struct ldb_context *mapped_ldb; */
+ const struct ldb_dn *local_base_dn;
+ const struct ldb_dn *remote_base_dn;
};
+/* initialization function */
+int
+ldb_map_init(struct ldb_module *module,
+ const struct ldb_map_attribute *attrs,
+ const struct ldb_map_objectclass *ocls,
+ const char *name);
+
+/* get copy of map_ops */
+struct ldb_module_ops
+ldb_map_get_ops(void);
+
#endif /* __LDB_MAP_H__ */
diff --git a/source4/lib/ldb/modules/ldb_map_inbound.c b/source4/lib/ldb/modules/ldb_map_inbound.c
new file mode 100644
index 0000000000..b9119f341a
--- /dev/null
+++ b/source4/lib/ldb/modules/ldb_map_inbound.c
@@ -0,0 +1,724 @@
+/*
+ ldb database mapping module
+
+ Copyright (C) Jelmer Vernooij 2005
+ Copyright (C) Martin Kuehl <mkhl@samba.org> 2006
+
+ * NOTICE: this module is NOT released under the GNU LGPL license as
+ * other ldb code. This module is release under the GNU GPL v2 or
+ * later license.
+
+ 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 2 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, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include "includes.h"
+#include "ldb/include/includes.h"
+
+#include "ldb/modules/ldb_map.h"
+#include "ldb/modules/ldb_map_private.h"
+
+
+/* Mapping message elements
+ * ======================== */
+
+/* Map a message element into the remote partition. */
+static struct ldb_message_element *ldb_msg_el_map_local(struct ldb_module *module, void *mem_ctx, const struct ldb_map_attribute *map, const struct ldb_message_element *old)
+{
+ struct ldb_message_element *el;
+ int i;
+
+ el = talloc_zero(mem_ctx, struct ldb_message_element);
+ if (el == NULL) {
+ map_oom(module);
+ return NULL;
+ }
+
+ el->num_values = old->num_values;
+ el->values = talloc_array(el, struct ldb_val, el->num_values);
+ if (el->values == NULL) {
+ talloc_free(el);
+ map_oom(module);
+ return NULL;
+ }
+
+ el->name = map_attr_map_local(el, map, old->name);
+
+ for (i = 0; i < el->num_values; i++) {
+ el->values[i] = ldb_val_map_local(module, el->values, map, old->values[i]);
+ }
+
+ return el;
+}
+
+/* Add a message element either to a local or to a remote message,
+ * depending on whether it goes into the local or remote partition. */
+static int ldb_msg_el_partition(struct ldb_module *module, struct ldb_message *local, struct ldb_message *remote, const struct ldb_message *msg, const char *attr_name, /* const char * const names[], */ const struct ldb_message_element *old)
+{
+ const struct ldb_map_context *data = map_get_context(module);
+ const struct ldb_map_attribute *map = map_attr_find_local(data, attr_name);
+ struct ldb_message_element *el;
+
+ /* Unknown attribute: ignore */
+ if (map == NULL) {
+ ldb_debug(module->ldb, LDB_DEBUG_WARNING, "ldb_map: "
+ "Not mapping attribute '%s': no mapping found\n",
+ old->name);
+ goto local;
+ }
+
+ switch (map->type) {
+ case MAP_IGNORE:
+ goto local;
+
+ case MAP_CONVERT:
+ if (map->u.convert.convert_local == NULL) {
+ ldb_debug(module->ldb, LDB_DEBUG_WARNING, "ldb_map: "
+ "Not mapping attribute '%s': "
+ "'convert_local' not set\n",
+ map->local_name);
+ goto local;
+ }
+ /* fall through */
+ case MAP_KEEP:
+ case MAP_RENAME:
+ el = ldb_msg_el_map_local(module, remote, map, old);
+ break;
+
+ case MAP_GENERATE:
+ if (map->u.generate.generate_remote == NULL) {
+ ldb_debug(module->ldb, LDB_DEBUG_WARNING, "ldb_map: "
+ "Not mapping attribute '%s': "
+ "'generate_remote' not set\n",
+ map->local_name);
+ goto local;
+ }
+
+ /* TODO: if this attr requires context:
+ * make sure all context attrs are mappable (in 'names')
+ * make sure all context attrs have already been mapped?
+ * maybe postpone generation until they have been mapped?
+ */
+
+ map->u.generate.generate_remote(module, map->local_name, msg, remote, local);
+ return 0;
+ }
+
+ if (el == NULL) {
+ return -1;
+ }
+
+ return ldb_msg_add(remote, el, old->flags);
+
+local:
+ el = talloc(local, struct ldb_message_element);
+ if (el == NULL) {
+ map_oom(module);
+ return -1;
+ }
+
+ *el = *old; /* copy the old element */
+
+ return ldb_msg_add(local, el, old->flags);
+}
+
+/* Mapping messages
+ * ================ */
+
+/* Check whether a message will be (partially) mapped into the remote partition. */
+static BOOL ldb_msg_check_remote(struct ldb_module *module, const struct ldb_message *msg)
+{
+ const struct ldb_map_context *data = map_get_context(module);
+ BOOL ret;
+ int i;
+
+ for (i = 0; i < msg->num_elements; i++) {
+ ret = map_attr_check_remote(data, msg->elements[i].name);
+ if (ret) {
+ return ret;
+ }
+ }
+
+ return False;
+}
+
+/* Split message elements that stay in the local partition from those
+ * that are mapped into the remote partition. */
+static int ldb_msg_partition(struct ldb_module *module, struct ldb_message *local, struct ldb_message *remote, const struct ldb_message *msg)
+{
+ /* const char * const names[]; */
+ int i, ret;
+
+ for (i = 0; i < msg->num_elements; i++) {
+ /* Skip 'IS_MAPPED' */
+ if (ldb_attr_cmp(msg->elements[i].name, IS_MAPPED) == 0) {
+ ldb_debug(module->ldb, LDB_DEBUG_WARNING, "ldb_map: "
+ "Skipping attribute '%s'\n",
+ msg->elements[i].name);
+ continue;
+ }
+
+ ret = ldb_msg_el_partition(module, local, remote, msg, msg->elements[i].name, &msg->elements[i]);
+ if (ret) {
+ return ret;
+ }
+ }
+
+ return 0;
+}
+
+
+/* Inbound requests: add, modify, rename, delete
+ * ============================================= */
+
+/* Add the remote record. */
+int map_add_do_remote(struct ldb_handle *handle)
+{
+ struct map_context *ac;
+
+ ac = talloc_get_type(handle->private_data, struct map_context);
+
+ ldb_set_timeout_from_prev_req(ac->module->ldb, ac->orig_req, ac->remote_req);
+
+ ac->step = MAP_ADD_REMOTE;
+
+ handle->state = LDB_ASYNC_INIT;
+ handle->status = LDB_SUCCESS;
+
+ return ldb_next_remote_request(ac->module, ac->remote_req);
+}
+
+/* Add the local record. */
+int map_add_do_local(struct ldb_handle *handle)
+{
+ struct map_context *ac;
+
+ ac = talloc_get_type(handle->private_data, struct map_context);
+
+ ldb_set_timeout_from_prev_req(ac->module->ldb, ac->orig_req, ac->local_req);
+
+ ac->step = MAP_ADD_LOCAL;
+
+ handle->state = LDB_ASYNC_INIT;
+ handle->status = LDB_SUCCESS;
+
+ return ldb_next_request(ac->module, ac->local_req);
+}
+
+/* Add a record. */
+int map_add(struct ldb_module *module, struct ldb_request *req)
+{
+ const struct ldb_message *msg = req->op.add.message;
+ struct ldb_handle *h;
+ struct map_context *ac;
+ struct ldb_message *local, *remote;
+ const char *dn;
+
+ /* Do not manipulate our control entries */
+ if (ldb_dn_is_special(msg->dn)) {
+ return ldb_next_request(module, req);
+ }
+
+ /* No mapping requested (perhaps no DN mapping specified), skip to next module */
+ if (!ldb_dn_check_local(module, msg->dn)) {
+ return ldb_next_request(module, req);
+ }
+
+ /* No mapping needed, fail */
+ if (!ldb_msg_check_remote(module, msg)) {
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ /* Prepare context and handle */
+ h = map_init_handle(req, module);
+ if (h == NULL) {
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+ ac = talloc_get_type(h->private_data, struct map_context);
+
+ /* Prepare the local operation */
+ ac->local_req = talloc(ac, struct ldb_request);
+ if (ac->local_req == NULL) {
+ goto oom;
+ }
+
+ *(ac->local_req) = *req; /* copy the request */
+
+ ac->local_req->context = NULL;
+ ac->local_req->callback = NULL;
+
+ /* Prepare the remote operation */
+ ac->remote_req = talloc(ac, struct ldb_request);
+ if (ac->remote_req == NULL) {
+ goto oom;
+ }
+
+ *(ac->remote_req) = *req; /* copy the request */
+
+ ac->remote_req->context = NULL;
+ ac->remote_req->callback = NULL;
+
+ /* Prepare the local message */
+ local = ldb_msg_new(ac->local_req);
+ if (local == NULL) {
+ goto oom;
+ }
+ local->dn = msg->dn;
+
+ /* Prepare the remote message */
+ remote = ldb_msg_new(ac->remote_req);
+ if (remote == NULL) {
+ goto oom;
+ }
+ remote->dn = ldb_dn_map_local(ac->module, remote, msg->dn);
+
+ /* Split local from remote message */
+ ldb_msg_partition(module, local, remote, msg);
+ ac->local_req->op.add.message = local;
+ ac->remote_req->op.add.message = remote;
+
+ if ((local->num_elements == 0) || (!map_check_local_db(ac->module))) {
+ /* No local data or db, just run the remote request */
+ talloc_free(ac->local_req);
+ req->handle = h; /* return our own handle to deal with this call */
+ return map_add_do_remote(h);
+ }
+
+ /* Store remote DN in 'IS_MAPPED' */
+ /* TODO: use GUIDs here instead */
+ dn = ldb_dn_linearize(local, remote->dn);
+ if (ldb_msg_add_string(local, IS_MAPPED, dn) != 0) {
+ goto failed;
+ }
+
+ req->handle = h; /* return our own handle to deal with this call */
+ return map_add_do_local(h);
+
+oom:
+ map_oom(module);
+failed:
+ talloc_free(h);
+ return LDB_ERR_OPERATIONS_ERROR;
+}
+
+/* Modify the remote record. */
+int map_modify_do_remote(struct ldb_handle *handle)
+{
+ struct map_context *ac;
+
+ ac = talloc_get_type(handle->private_data, struct map_context);
+
+ ldb_set_timeout_from_prev_req(ac->module->ldb, ac->orig_req, ac->remote_req);
+
+ ac->step = MAP_MODIFY_REMOTE;
+
+ handle->state = LDB_ASYNC_INIT;
+ handle->status = LDB_SUCCESS;
+
+ return ldb_next_remote_request(ac->module, ac->remote_req);
+}
+
+/* Modify the local record. */
+int map_modify_do_local(struct ldb_handle *handle)
+{
+ struct map_context *ac;
+ struct ldb_message *msg;
+ char *dn;
+
+ ac = talloc_get_type(handle->private_data, struct map_context);
+
+ if (ac->local_dn == NULL) {
+ /* No local record present, add it instead */
+ msg = discard_const_p(struct ldb_message, ac->local_req->op.mod.message);
+
+ /* Add local 'IS_MAPPED' */
+ /* TODO: use GUIDs here instead */
+ dn = ldb_dn_linearize(msg, ac->remote_req->op.mod.message->dn);
+ if (ldb_msg_add_empty(msg, IS_MAPPED, LDB_FLAG_MOD_ADD) != 0) {
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+ if (ldb_msg_add_string(msg, IS_MAPPED, dn) != 0) {
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ /* Turn request into 'add' */
+ ac->local_req->operation = LDB_ADD;
+ ac->local_req->op.add.message = msg;
+ /* TODO: Could I just leave msg in there? I think so,
+ * but it looks clearer this way. */
+ }
+
+ ldb_set_timeout_from_prev_req(ac->module->ldb, ac->orig_req, ac->local_req);
+
+ ac->step = MAP_MODIFY_LOCAL;
+
+ handle->state = LDB_ASYNC_INIT;
+ handle->status = LDB_SUCCESS;
+
+ return ldb_next_request(ac->module, ac->local_req);
+}
+
+/* Modify a record. */
+int map_modify(struct ldb_module *module, struct ldb_request *req)
+{
+ const struct ldb_message *msg = req->op.mod.message;
+ struct ldb_handle *h;
+ struct map_context *ac;
+ struct ldb_message *local, *remote;
+
+ /* Do not manipulate our control entries */
+ if (ldb_dn_is_special(msg->dn)) {
+ return ldb_next_request(module, req);
+ }
+
+ /* No mapping requested (perhaps no DN mapping specified), skip to next module */
+ if (!ldb_dn_check_local(module, msg->dn)) {
+ return ldb_next_request(module, req);
+ }
+
+ /* No mapping needed, skip to next module */
+ /* TODO: What if the remote part exists, the local doesn't,
+ * and this request wants to modify local data and thus
+ * add the local record? */
+ if (!ldb_msg_check_remote(module, msg)) {
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ /* Prepare context and handle */
+ h = map_init_handle(req, module);
+ if (h == NULL) {
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+ ac = talloc_get_type(h->private_data, struct map_context);
+
+ /* Prepare the local operation */
+ ac->local_req = talloc(ac, struct ldb_request);
+ if (ac->local_req == NULL) {
+ goto oom;
+ }
+
+ *(ac->local_req) = *req; /* copy the request */
+
+ ac->local_req->context = NULL;
+ ac->local_req->callback = NULL;
+
+ /* Prepare the remote operation */
+ ac->remote_req = talloc(ac, struct ldb_request);
+ if (ac->remote_req == NULL) {
+ goto oom;
+ }
+
+ *(ac->remote_req) = *req; /* copy the request */
+
+ ac->remote_req->context = NULL;
+ ac->remote_req->callback = NULL;
+
+ /* Prepare the local message */
+ local = ldb_msg_new(ac->local_req);
+ if (local == NULL) {
+ goto oom;
+ }
+ local->dn = msg->dn;
+
+ /* Prepare the remote message */
+ remote = ldb_msg_new(ac->remote_req);
+ if (remote == NULL) {
+ goto oom;
+ }
+ remote->dn = ldb_dn_map_local(ac->module, remote, msg->dn);
+
+ /* Split local from remote message */
+ ldb_msg_partition(module, local, remote, msg);
+ ac->local_req->op.mod.message = local;
+ ac->remote_req->op.mod.message = remote;
+
+ if ((local->num_elements == 0) || (!map_check_local_db(ac->module))) {
+ /* No local data or db, just run the remote request */
+ talloc_free(ac->local_req);
+ req->handle = h; /* return our own handle to deal with this call */
+ return map_modify_do_remote(h);
+ }
+
+ /* prepare the search operation */
+ ac->search_req = map_search_self_req(ac, msg->dn);
+ if (ac->search_req == NULL) {
+ goto failed;
+ }
+
+ ac->step = MAP_SEARCH_SELF_MODIFY;
+
+ req->handle = h; /* return our own handle to deal with this call */
+ return ldb_next_request(module, ac->search_req);
+
+oom:
+ map_oom(module);
+failed:
+ talloc_free(h);
+ return LDB_ERR_OPERATIONS_ERROR;
+}
+
+/* Delete the remote record. */
+int map_delete_do_remote(struct ldb_handle *handle)
+{
+ struct map_context *ac;
+
+ ac = talloc_get_type(handle->private_data, struct map_context);
+
+ ldb_set_timeout_from_prev_req(ac->module->ldb, ac->orig_req, ac->remote_req);
+
+ ac->step = MAP_DELETE_REMOTE;
+
+ handle->state = LDB_ASYNC_INIT;
+ handle->status = LDB_SUCCESS;
+
+ return ldb_next_remote_request(ac->module, ac->remote_req);
+}
+
+/* Delete the local record. */
+int map_delete_do_local(struct ldb_handle *handle)
+{
+ struct map_context *ac;
+
+ ac = talloc_get_type(handle->private_data, struct map_context);
+
+ /* No local record, continue remotely */
+ if (ac->local_dn == NULL) {
+ return map_delete_do_remote(handle);
+ }
+
+ ldb_set_timeout_from_prev_req(ac->module->ldb, ac->orig_req, ac->local_req);
+
+ ac->step = MAP_DELETE_LOCAL;
+
+ handle->state = LDB_ASYNC_INIT;
+ handle->status = LDB_SUCCESS;
+
+ return ldb_next_request(ac->module, ac->local_req);
+}
+
+/* Delete a record. */
+int map_delete(struct ldb_module *module, struct ldb_request *req)
+{
+ struct ldb_handle *h;
+ struct map_context *ac;
+
+ /* Do not manipulate our control entries */
+ if (ldb_dn_is_special(req->op.del.dn)) {
+ return ldb_next_request(module, req);
+ }
+
+ /* No mapping requested (perhaps no DN mapping specified), skip to next module */
+ if (!ldb_dn_check_local(module, req->op.del.dn)) {
+ return ldb_next_request(module, req);
+ }
+
+ /* Prepare context and handle */
+ h = map_init_handle(req, module);
+ if (h == NULL) {
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+ ac = talloc_get_type(h->private_data, struct map_context);
+
+ /* Prepare the local operation */
+ ac->local_req = talloc(ac, struct ldb_request);
+ if (ac->local_req == NULL) {
+ goto oom;
+ }
+
+ *(ac->local_req) = *req; /* copy the request */
+ ac->local_req->op.del.dn = req->op.del.dn;
+
+ ac->local_req->context = NULL;
+ ac->local_req->callback = NULL;
+
+ /* Prepare the remote operation */
+ ac->remote_req = talloc(ac, struct ldb_request);
+ if (ac->remote_req == NULL) {
+ goto oom;
+ }
+
+ *(ac->remote_req) = *req; /* copy the request */
+ ac->remote_req->op.del.dn = ldb_dn_map_local(module, ac->remote_req, req->op.del.dn);
+
+ /* No local db, just run the remote request */
+ if (!map_check_local_db(ac->module)) {
+ req->handle = h; /* return our own handle to deal with this call */
+ return map_delete_do_remote(h);
+ }
+
+ ac->remote_req->context = NULL;
+ ac->remote_req->callback = NULL;
+
+ /* Prepare the search operation */
+ ac->search_req = map_search_self_req(ac, req->op.del.dn);
+ if (ac->search_req == NULL) {
+ goto failed;
+ }
+
+ req->handle = h; /* return our own handle to deal with this call */
+
+ ac->step = MAP_SEARCH_SELF_DELETE;
+
+ return ldb_next_request(module, ac->search_req);
+
+oom:
+ map_oom(module);
+failed:
+ talloc_free(h);
+ return LDB_ERR_OPERATIONS_ERROR;
+}
+
+/* Rename the remote record. */
+int map_rename_do_remote(struct ldb_handle *handle)
+{
+ struct map_context *ac;
+
+ ac = talloc_get_type(handle->private_data, struct map_context);
+
+ ldb_set_timeout_from_prev_req(ac->module->ldb, ac->orig_req, ac->remote_req);
+
+ ac->step = MAP_RENAME_REMOTE;
+
+ handle->state = LDB_ASYNC_INIT;
+ handle->status = LDB_SUCCESS;
+
+ return ldb_next_remote_request(ac->module, ac->remote_req);
+}
+
+/* Update the local 'IS_MAPPED' attribute. */
+int map_rename_do_fixup(struct ldb_handle *handle)
+{
+ struct map_context *ac;
+
+ ac = talloc_get_type(handle->private_data, struct map_context);
+
+ ldb_set_timeout_from_prev_req(ac->module->ldb, ac->orig_req, ac->down_req);
+
+ ac->step = MAP_RENAME_FIXUP;
+
+ handle->state = LDB_ASYNC_INIT;
+ handle->status = LDB_SUCCESS;
+
+ return ldb_next_request(ac->module, ac->down_req);
+}
+
+/* Rename the local record. */
+int map_rename_do_local(struct ldb_handle *handle)
+{
+ struct map_context *ac;
+
+ ac = talloc_get_type(handle->private_data, struct map_context);
+
+ /* No local record, continue remotely */
+ if (ac->local_dn == NULL) {
+ return map_rename_do_remote(handle);
+ }
+
+ ldb_set_timeout_from_prev_req(ac->module->ldb, ac->orig_req, ac->local_req);
+
+ ac->step = MAP_RENAME_LOCAL;
+
+ handle->state = LDB_ASYNC_INIT;
+ handle->status = LDB_SUCCESS;
+
+ return ldb_next_request(ac->module, ac->local_req);
+}
+
+/* Rename a record. */
+int map_rename(struct ldb_module *module, struct ldb_request *req)
+{
+ struct ldb_handle *h;
+ struct map_context *ac;
+
+ /* Do not manipulate our control entries */
+ if (ldb_dn_is_special(req->op.rename.olddn)) {
+ return ldb_next_request(module, req);
+ }
+
+ /* No mapping requested (perhaps no DN mapping specified), skip to next module */
+ if ((!ldb_dn_check_local(module, req->op.rename.olddn)) &&
+ (!ldb_dn_check_local(module, req->op.rename.newdn))) {
+ return ldb_next_request(module, req);
+ }
+
+ /* Rename into/out of the mapped partition requested, bail out */
+ if (!ldb_dn_check_local(module, req->op.rename.olddn) ||
+ !ldb_dn_check_local(module, req->op.rename.newdn)) {
+ return LDB_ERR_AFFECTS_MULTIPLE_DSAS;
+ }
+
+ /* Prepare context and handle */
+ h = map_init_handle(req, module);
+ if (h == NULL) {
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+ ac = talloc_get_type(h->private_data, struct map_context);
+
+ /* Prepare the local operation */
+ ac->local_req = talloc(ac, struct ldb_request);
+ if (ac->local_req == NULL) {
+ goto oom;
+ }
+
+ *(ac->local_req) = *req; /* copy the request */
+ ac->local_req->op.rename.olddn = req->op.rename.olddn;
+ ac->local_req->op.rename.newdn = req->op.rename.newdn;
+
+ ac->local_req->context = NULL;
+ ac->local_req->callback = NULL;
+
+ /* Prepare the remote operation */
+ ac->remote_req = talloc(ac, struct ldb_request);
+ if (ac->remote_req == NULL) {
+ goto oom;
+ }
+
+ *(ac->remote_req) = *req; /* copy the request */
+ ac->remote_req->op.rename.olddn = ldb_dn_map_local(module, ac->remote_req, req->op.rename.olddn);
+ ac->remote_req->op.rename.newdn = ldb_dn_map_local(module, ac->remote_req, req->op.rename.newdn);
+
+ ac->remote_req->context = NULL;
+ ac->remote_req->callback = NULL;
+
+ /* No local db, just run the remote request */
+ if (!map_check_local_db(ac->module)) {
+ req->handle = h; /* return our own handle to deal with this call */
+ return map_rename_do_remote(h);
+ }
+
+ /* Prepare the fixup operation */
+ /* TODO: use GUIDs here instead -- or skip it when GUIDs are used. */
+ ac->down_req = map_build_fixup_req(ac, req->op.rename.newdn, ac->remote_req->op.rename.newdn);
+ if (ac->down_req == NULL) {
+ goto failed;
+ }
+
+ /* Prepare the search operation */
+ ac->search_req = map_search_self_req(ac, req->op.rename.olddn);
+ if (ac->search_req == NULL) {
+ goto failed;
+ }
+
+ req->handle = h; /* return our own handle to deal with this call */
+
+ ac->step = MAP_SEARCH_SELF_RENAME;
+
+ return ldb_next_request(module, ac->search_req);
+
+oom:
+ map_oom(module);
+failed:
+ talloc_free(h);
+ return LDB_ERR_OPERATIONS_ERROR;
+}
diff --git a/source4/lib/ldb/modules/ldb_map_outbound.c b/source4/lib/ldb/modules/ldb_map_outbound.c
new file mode 100644
index 0000000000..046c92bb99
--- /dev/null
+++ b/source4/lib/ldb/modules/ldb_map_outbound.c
@@ -0,0 +1,1134 @@
+/*
+ ldb database mapping module
+
+ Copyright (C) Jelmer Vernooij 2005
+ Copyright (C) Martin Kuehl <mkhl@samba.org> 2006
+
+ * NOTICE: this module is NOT released under the GNU LGPL license as
+ * other ldb code. This module is release under the GNU GPL v2 or
+ * later license.
+
+ 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 2 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, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include "includes.h"
+#include "ldb/include/includes.h"
+
+#include "ldb/modules/ldb_map.h"
+#include "ldb/modules/ldb_map_private.h"
+
+
+/* Mapping attributes
+ * ================== */
+
+/* Select attributes that stay in the local partition. */
+static const char **map_attrs_select_local(struct ldb_module *module, void *mem_ctx, const char * const *attrs)
+{
+ const struct ldb_map_context *data = map_get_context(module);
+ const char **result;
+ int i, last;
+
+ if (attrs == NULL)
+ return NULL;
+
+ last = 0;
+ result = talloc_array(mem_ctx, const char *, 1);
+ if (result == NULL) {
+ goto failed;
+ }
+ result[0] = NULL;
+
+ for (i = 0; attrs[i]; i++) {
+ /* Wildcards and ignored attributes are kept locally */
+ if ((ldb_attr_cmp(attrs[i], "*") == 0) ||
+ (!map_attr_check_remote(data, attrs[i]))) {
+ result = talloc_realloc(mem_ctx, result, const char *, last+2);
+ if (result == NULL) {
+ goto failed;
+ }
+
+ result[last] = talloc_strdup(result, attrs[i]);
+ result[last+1] = NULL;
+ last++;
+ }
+ }
+
+ return result;
+
+failed:
+ talloc_free(result);
+ map_oom(module);
+ return NULL;
+}
+
+/* Collect attributes that are mapped into the remote partition. */
+static const char **map_attrs_collect_remote(struct ldb_module *module, void *mem_ctx, const char * const *attrs)
+{
+ const struct ldb_map_context *data = map_get_context(module);
+ const char **result;
+ const struct ldb_map_attribute *map;
+ const char *name;
+ int i, j, last;
+
+ if (attrs == NULL)
+ return NULL;
+
+ last = 0;
+ result = talloc_array(mem_ctx, const char *, 1);
+ if (result == NULL) {
+ goto failed;
+ }
+ result[0] = NULL;
+
+ for (i = 0; attrs[i]; i++) {
+ /* Wildcards are kept remotely, too */
+ if (ldb_attr_cmp(attrs[i], "*") == 0) {
+ name = attrs[i];
+ goto named;
+ }
+
+ /* Add remote names of mapped attrs */
+ map = map_attr_find_local(data, attrs[i]);
+ if (map == NULL) {
+ continue;
+ }
+
+ switch (map->type) {
+ case MAP_IGNORE:
+ continue;
+
+ case MAP_KEEP:
+ name = attrs[i];
+ goto named;
+
+ case MAP_RENAME:
+ case MAP_CONVERT:
+ name = map->u.rename.remote_name;
+ goto named;
+
+ case MAP_GENERATE:
+ /* Add all remote names of "generate" attrs */
+ for (j = 0; map->u.generate.remote_names[j]; j++) {
+ result = talloc_realloc(mem_ctx, result, const char *, last+2);
+ if (result == NULL) {
+ goto failed;
+ }
+
+ result[last] = talloc_strdup(result, map->u.generate.remote_names[j]);
+ result[last+1] = NULL;
+ last++;
+ }
+ continue;
+ }
+
+ named: /* We found a single remote name, add that */
+ result = talloc_realloc(mem_ctx, result, const char *, last+2);
+ if (result == NULL) {
+ goto failed;
+ }
+
+ result[last] = talloc_strdup(result, name);
+ result[last+1] = NULL;
+ last++;
+ }
+
+ return result;
+
+failed:
+ talloc_free(result);
+ map_oom(module);
+ return NULL;
+}
+
+/* Split attributes that stay in the local partition from those that
+ * are mapped into the remote partition. */
+static int map_attrs_partition(struct ldb_module *module, void *local_ctx, void *remote_ctx, const char ***local_attrs, const char ***remote_attrs, const char * const *attrs)
+{
+ *local_attrs = map_attrs_select_local(module, local_ctx, attrs);
+ *remote_attrs = map_attrs_collect_remote(module, remote_ctx, attrs);
+
+ return 0;
+}
+
+/* Merge two lists of attributes into a single one. */
+static int map_attrs_merge(struct ldb_module *module, void *mem_ctx, const char ***attrs, const char * const *more_attrs)
+{
+ int i, j, k;
+
+ for (i = 0; (*attrs)[i]; i++) /* noop */ ;
+ for (j = 0; more_attrs[j]; j++) /* noop */ ;
+
+ *attrs = talloc_realloc(mem_ctx, *attrs, const char *, i+j+1);
+ if (*attrs == NULL) {
+ map_oom(module);
+ return -1;
+ }
+
+ for (k = 0; k < j; k++) {
+ (*attrs)[i+k] = more_attrs[k];
+ }
+
+ (*attrs)[i+k] = NULL;
+
+ return 0;
+}
+
+/* Mapping ldb values
+ * ================== */
+
+/* Map an ldb value from a parse tree into the remote partition. */
+static struct ldb_val ldb_val_map_subtree(struct ldb_module *module, struct ldb_parse_tree *new, const struct ldb_map_attribute *map, const struct ldb_parse_tree *tree)
+{
+ struct ldb_val val;
+
+ /* Extract the old value */
+ switch (tree->operation) {
+ case LDB_OP_EQUALITY:
+ val = tree->u.equality.value;
+ break;
+ case LDB_OP_LESS:
+ case LDB_OP_GREATER:
+ case LDB_OP_APPROX:
+ val = tree->u.comparison.value;
+ break;
+ case LDB_OP_EXTENDED:
+ val = tree->u.extended.value;
+ break;
+ default:
+ val.length = 0;
+ val.data = NULL;
+ return ldb_val_dup(new, &val);
+ }
+
+ /* Convert to the new value */
+ return ldb_val_map_local(module, new, map, val);
+}
+
+/* Mapping message elements
+ * ======================== */
+
+/* Add an element to a message, overwriting any old identically named elements. */
+static int ldb_msg_replace(struct ldb_message *msg, const struct ldb_message_element *el)
+{
+ struct ldb_message_element *old;
+
+ old = ldb_msg_find_element(msg, el->name);
+
+ /* no local result, add as new element */
+ if (old == NULL) {
+ if (ldb_msg_add_empty(msg, el->name, 0) != 0) {
+ return -1;
+ }
+
+ old = ldb_msg_find_element(msg, el->name);
+ if (old == NULL) {
+ return -1;
+ }
+ }
+
+ *old = *el; /* copy new element */
+
+ return 0;
+}
+
+/* Map a message element back into the local partition. */
+static struct ldb_message_element *ldb_msg_el_map_remote(struct ldb_module *module, void *mem_ctx, const struct ldb_map_attribute *map, const struct ldb_message_element *old)
+{
+ struct ldb_message_element *el;
+ int i;
+
+ el = talloc_zero(mem_ctx, struct ldb_message_element);
+ if (el == NULL) {
+ map_oom(module);
+ return NULL;
+ }
+
+ el->num_values = old->num_values;
+ el->values = talloc_array(el, struct ldb_val, el->num_values);
+ if (el->values == NULL) {
+ talloc_free(el);
+ map_oom(module);
+ return NULL;
+ }
+
+ el->name = map_attr_map_remote(el, map, old->name);
+
+ for (i = 0; i < el->num_values; i++) {
+ el->values[i] = ldb_val_map_remote(module, el->values, map, old->values[i]);
+ }
+
+ return el;
+}
+
+/* Merge a remote message element into a local message. */
+static int ldb_msg_el_merge(struct ldb_module *module, struct ldb_message *local, struct ldb_message *remote, const char *attr_name, const struct ldb_message_element *old)
+{
+ const struct ldb_map_context *data = map_get_context(module);
+ const struct ldb_map_attribute *map = map_attr_find_remote(data, attr_name);
+ struct ldb_message_element *el;
+
+ /* Unknown attribute in remote message:
+ * skip, attribute was probably auto-generated */
+ if (map == NULL) {
+ ldb_debug(module->ldb, LDB_DEBUG_WARNING, "ldb_map: "
+ "Skipping attribute '%s': no mapping found\n",
+ old->name);
+ return 0;
+ }
+
+ switch (map->type) {
+ case MAP_IGNORE:
+ return -1;
+
+ case MAP_CONVERT:
+ if (map->u.convert.convert_remote == NULL) {
+ ldb_debug(module->ldb, LDB_DEBUG_ERROR, "ldb_map: "
+ "Skipping attribute '%s': "
+ "'convert_remote' not set\n",
+ old->name);
+ return 0;
+ }
+ /* fall through */
+ case MAP_KEEP:
+ case MAP_RENAME:
+ el = ldb_msg_el_map_remote(module, local, map, old);
+ break;
+
+ case MAP_GENERATE:
+ if (map->u.generate.generate_local == NULL) {
+ ldb_debug(module->ldb, LDB_DEBUG_ERROR, "ldb_map: "
+ "Skipping attribute '%s': "
+ "'generate_local' not set\n",
+ old->name);
+ return 0;
+ }
+
+ el = map->u.generate.generate_local(module, local, old->name, remote);
+ break;
+ }
+
+ if (el == NULL) {
+ return -1;
+ }
+
+ return ldb_msg_replace(local, el);
+}
+
+/* Mapping messages
+ * ================ */
+
+/* Merge two local messages into a single one. */
+static int ldb_msg_merge_local(struct ldb_module *module, struct ldb_message *msg1, struct ldb_message *msg2)
+{
+ int i, ret;
+
+ for (i = 0; i < msg2->num_elements; i++) {
+ ret = ldb_msg_replace(msg1, &msg2->elements[i]);
+ if (ret) {
+ return ret;
+ }
+ }
+
+ return 0;
+}
+
+/* Merge a local and a remote message into a single local one. */
+static int ldb_msg_merge_remote(struct ldb_module *module, struct ldb_message *local, struct ldb_message *remote)
+{
+ int i, ret;
+
+ /* Try to map each attribute back;
+ * Add to local message is possible,
+ * Overwrite old local attribute if necessary */
+ for (i = 0; i < remote->num_elements; i++) {
+ ret = ldb_msg_el_merge(module, local, remote, remote->elements[i].name, &remote->elements[i]);
+ if (ret) {
+ return ret;
+ }
+ }
+
+ return 0;
+}
+
+/* Mapping search results
+ * ====================== */
+
+/* Map a search result back into the local partition. */
+static int map_reply_remote(struct ldb_module *module, struct ldb_reply *ares)
+{
+ struct ldb_message *msg;
+ struct ldb_dn *dn;
+ int ret;
+
+ /* There is no result message, skip */
+ if (ares->type != LDB_REPLY_ENTRY) {
+ return 0;
+ }
+
+ /* Create a new result message */
+ msg = ldb_msg_new(ares);
+ if (msg == NULL) {
+ map_oom(module);
+ return -1;
+ }
+
+ /* Merge remote message into new message */
+ ret = ldb_msg_merge_remote(module, msg, ares->message);
+ if (ret) {
+ talloc_free(msg);
+ return ret;
+ }
+
+ /* Create corresponding local DN */
+ dn = ldb_dn_map_rebase_remote(module, msg, ares->message->dn);
+ if (dn == NULL) {
+ talloc_free(msg);
+ return -1;
+ }
+ msg->dn = dn;
+
+ /* Store new message with new DN as the result */
+ talloc_free(ares->message);
+ ares->message = msg;
+
+ return 0;
+}
+
+/* Mapping parse trees
+ * =================== */
+
+/* Check whether a parse tree can safely be split in two. */
+static BOOL ldb_parse_tree_check_splittable(const struct ldb_parse_tree *tree)
+{
+ const struct ldb_parse_tree *subtree = tree;
+ BOOL negate = False;
+
+ while (subtree) {
+ switch (subtree->operation) {
+ case LDB_OP_NOT:
+ negate = !negate;
+ subtree = subtree->u.isnot.child;
+ continue;
+
+ case LDB_OP_AND:
+ return !negate; /* if negate: False */
+
+ case LDB_OP_OR:
+ return negate; /* if negate: True */
+
+ default:
+ return True; /* simple parse tree */
+ }
+ }
+
+ return True; /* no parse tree */
+}
+
+/* Collect a list of attributes required to match a given parse tree. */
+static int ldb_parse_tree_collect_attrs(struct ldb_module *module, void *mem_ctx, const char ***attrs, const struct ldb_parse_tree *tree)
+{
+ const char **new_attrs;
+ int i, ret;
+
+ if (tree == NULL) {
+ return 0;
+ }
+
+ switch (tree->operation) {
+ case LDB_OP_OR:
+ case LDB_OP_AND: /* attributes stored in list of subtrees */
+ for (i = 0; i < tree->u.list.num_elements; i++) {
+ ret = ldb_parse_tree_collect_attrs(module, mem_ctx, attrs, tree->u.list.elements[i]);
+ if (ret) {
+ return ret;
+ }
+ }
+ return 0;
+
+ case LDB_OP_NOT: /* attributes stored in single subtree */
+ return ldb_parse_tree_collect_attrs(module, mem_ctx, attrs, tree->u.isnot.child);
+
+ default: /* single attribute in tree */
+ new_attrs = ldb_attr_list_copy_add(mem_ctx, *attrs, tree->u.equality.attr);
+ talloc_free(*attrs);
+ *attrs = new_attrs;
+ return 0;
+ }
+
+ return -1;
+}
+
+static int map_subtree_select_local(struct ldb_module *module, void *mem_ctx, struct ldb_parse_tree **new, const struct ldb_parse_tree *tree);
+
+/* Select a negated subtree that queries attributes in the local partition */
+static int map_subtree_select_local_not(struct ldb_module *module, void *mem_ctx, struct ldb_parse_tree **new, const struct ldb_parse_tree *tree)
+{
+ struct ldb_parse_tree *child;
+ int ret;
+
+ /* Prepare new tree */
+ *new = talloc_memdup(mem_ctx, tree, sizeof(struct ldb_parse_tree));
+ if (*new == NULL) {
+ map_oom(module);
+ return -1;
+ }
+
+ /* Generate new subtree */
+ ret = map_subtree_select_local(module, *new, &child, tree->u.isnot.child);
+ if (ret) {
+ talloc_free(*new);
+ return ret;
+ }
+
+ /* Prune tree without subtree */
+ if (child == NULL) {
+ talloc_free(*new);
+ *new = NULL;
+ return 0;
+ }
+
+ (*new)->u.isnot.child = child;
+
+ return ret;
+}
+
+/* Select a list of subtrees that query attributes in the local partition */
+static int map_subtree_select_local_list(struct ldb_module *module, void *mem_ctx, struct ldb_parse_tree **new, const struct ldb_parse_tree *tree)
+{
+ int i, j, ret;
+
+ /* Prepare new tree */
+ *new = talloc_memdup(mem_ctx, tree, sizeof(struct ldb_parse_tree));
+ if (*new == NULL) {
+ map_oom(module);
+ return -1;
+ }
+
+ /* Prepare list of subtrees */
+ (*new)->u.list.num_elements = 0;
+ (*new)->u.list.elements = talloc_array(*new, struct ldb_parse_tree *, tree->u.list.num_elements);
+ if ((*new)->u.list.elements == NULL) {
+ map_oom(module);
+ talloc_free(*new);
+ return -1;
+ }
+
+ /* Generate new list of subtrees */
+ j = 0;
+ for (i = 0; i < tree->u.list.num_elements; i++) {
+ struct ldb_parse_tree *child;
+ ret = map_subtree_select_local(module, *new, &child, tree->u.list.elements[i]);
+ if (ret) {
+ talloc_free(*new);
+ return ret;
+ }
+
+ if (child) {
+ (*new)->u.list.elements[j] = child;
+ j++;
+ }
+ }
+
+ /* Prune tree without subtrees */
+ if (j == 0) {
+ talloc_free(*new);
+ *new = NULL;
+ return 0;
+ }
+
+ /* Fix subtree list size */
+ (*new)->u.list.num_elements = j;
+ (*new)->u.list.elements = talloc_realloc(*new, (*new)->u.list.elements, struct ldb_parse_tree *, (*new)->u.list.num_elements);
+
+ return ret;
+}
+
+/* Select a simple subtree that queries attributes in the local partition */
+static int map_subtree_select_local_simple(struct ldb_module *module, void *mem_ctx, struct ldb_parse_tree **new, const struct ldb_parse_tree *tree)
+{
+ /* Prepare new tree */
+ *new = talloc_memdup(mem_ctx, tree, sizeof(struct ldb_parse_tree));
+ if (*new == NULL) {
+ map_oom(module);
+ return -1;
+ }
+
+ return 0;
+}
+
+/* Select subtrees that query attributes in the local partition */
+static int map_subtree_select_local(struct ldb_module *module, void *mem_ctx, struct ldb_parse_tree **new, const struct ldb_parse_tree *tree)
+{
+ const struct ldb_map_context *data = map_get_context(module);
+
+ if (tree == NULL) {
+ return 0;
+ }
+
+ if (tree->operation == LDB_OP_NOT) {
+ return map_subtree_select_local_not(module, mem_ctx, new, tree);
+ }
+
+ if (tree->operation == LDB_OP_AND || tree->operation == LDB_OP_OR) {
+ return map_subtree_select_local_list(module, mem_ctx, new, tree);
+ }
+
+ if (map_attr_check_remote(data, tree->u.equality.attr)) {
+ *new = NULL;
+ return 0;
+ }
+
+ return map_subtree_select_local_simple(module, mem_ctx, new, tree);
+}
+
+static int map_subtree_collect_remote(struct ldb_module *module, void *mem_ctx, struct ldb_parse_tree **new, const struct ldb_parse_tree *tree);
+
+/* Collect a negated subtree that queries attributes in the remote partition */
+static int map_subtree_collect_remote_not(struct ldb_module *module, void *mem_ctx, struct ldb_parse_tree **new, const struct ldb_parse_tree *tree)
+{
+ struct ldb_parse_tree *child;
+ int ret;
+
+ /* Prepare new tree */
+ *new = talloc_memdup(mem_ctx, tree, sizeof(struct ldb_parse_tree));
+ if (*new == NULL) {
+ map_oom(module);
+ return -1;
+ }
+
+ /* Generate new subtree */
+ ret = map_subtree_collect_remote(module, *new, &child, tree->u.isnot.child);
+ if (ret) {
+ talloc_free(*new);
+ return ret;
+ }
+
+ /* Prune tree without subtree */
+ if (child == NULL) {
+ talloc_free(*new);
+ *new = NULL;
+ return 0;
+ }
+
+ (*new)->u.isnot.child = child;
+
+ return ret;
+}
+
+/* Collect a list of subtrees that query attributes in the remote partition */
+static int map_subtree_collect_remote_list(struct ldb_module *module, void *mem_ctx, struct ldb_parse_tree **new, const struct ldb_parse_tree *tree)
+{
+ int i, j, ret;
+
+ /* Prepare new tree */
+ *new = talloc_memdup(mem_ctx, tree, sizeof(struct ldb_parse_tree));
+ if (*new == NULL) {
+ map_oom(module);
+ return -1;
+ }
+
+ /* Prepare list of subtrees */
+ (*new)->u.list.num_elements = 0;
+ (*new)->u.list.elements = talloc_array(*new, struct ldb_parse_tree *, tree->u.list.num_elements);
+ if ((*new)->u.list.elements == NULL) {
+ map_oom(module);
+ talloc_free(*new);
+ return -1;
+ }
+
+ /* Generate new list of subtrees */
+ j = 0;
+ for (i = 0; i < tree->u.list.num_elements; i++) {
+ struct ldb_parse_tree *child;
+ ret = map_subtree_collect_remote(module, *new, &child, tree->u.list.elements[i]);
+ if (ret) {
+ talloc_free(*new);
+ return ret;
+ }
+
+ if (child) {
+ (*new)->u.list.elements[j] = child;
+ j++;
+ }
+ }
+
+ /* Prune tree without subtrees */
+ if (j == 0) {
+ talloc_free(*new);
+ *new = NULL;
+ return 0;
+ }
+
+ /* Fix subtree list size */
+ (*new)->u.list.num_elements = j;
+ (*new)->u.list.elements = talloc_realloc(*new, (*new)->u.list.elements, struct ldb_parse_tree *, (*new)->u.list.num_elements);
+
+ return ret;
+}
+
+/* Collect a simple subtree that queries attributes in the remote partition */
+static int map_subtree_collect_remote_simple(struct ldb_module *module, void *mem_ctx, struct ldb_parse_tree **new, const struct ldb_parse_tree *tree, const struct ldb_map_attribute *map)
+{
+ const char *attr;
+ struct ldb_val val;
+
+ /* Prepare new tree */
+ *new = talloc_memdup(mem_ctx, tree, sizeof(struct ldb_parse_tree));
+ if (*new == NULL) {
+ map_oom(module);
+ return -1;
+ }
+
+ /* Map attribute and value */
+ attr = map_attr_map_local(*new, map, tree->u.equality.attr);
+ if (attr == NULL) {
+ talloc_free(*new);
+ *new = NULL;
+ return 0;
+ }
+ val = ldb_val_map_subtree(module, *new, map, tree);
+
+ /* Store attribute and value in new tree */
+ switch (tree->operation) {
+ case LDB_OP_PRESENT:
+ (*new)->u.present.attr = attr;
+ break;
+ case LDB_OP_SUBSTRING:
+ (*new)->u.substring.attr = attr;
+ (*new)->u.substring.chunks = NULL; /* FIXME! */
+ break;
+ case LDB_OP_EQUALITY:
+ (*new)->u.equality.attr = attr;
+ (*new)->u.equality.value = val;
+ break;
+ case LDB_OP_LESS:
+ case LDB_OP_GREATER:
+ case LDB_OP_APPROX:
+ (*new)->u.comparison.attr = attr;
+ (*new)->u.comparison.value = val;
+ break;
+ case LDB_OP_EXTENDED:
+ (*new)->u.extended.attr = attr;
+ (*new)->u.extended.value = val;
+ (*new)->u.extended.rule_id = talloc_strdup(*new, tree->u.extended.rule_id);
+ break;
+ default: /* unknown kind of simple subtree */
+ talloc_free(*new);
+ return -1;
+ }
+
+ return 0;
+}
+
+/* Collect subtrees that query attributes in the remote partition */
+static int map_subtree_collect_remote(struct ldb_module *module, void *mem_ctx, struct ldb_parse_tree **new, const struct ldb_parse_tree *tree)
+{
+ const struct ldb_map_context *data = map_get_context(module);
+ const struct ldb_map_attribute *map;
+
+ if (tree == NULL) {
+ return 0;
+ }
+
+ if (tree->operation == LDB_OP_NOT) {
+ return map_subtree_collect_remote_not(module, mem_ctx, new, tree);
+ }
+
+ if ((tree->operation == LDB_OP_AND) || (tree->operation == LDB_OP_OR)) {
+ return map_subtree_collect_remote_list(module, mem_ctx, new, tree);
+ }
+
+ if (!map_attr_check_remote(data, tree->u.equality.attr)) {
+ *new = NULL;
+ return 0;
+ }
+
+ map = map_attr_find_local(data, tree->u.equality.attr);
+ if (map->convert_operator) {
+ *new = map->convert_operator(data, mem_ctx, tree);
+ return 0;
+ }
+
+ if (map->type == MAP_GENERATE) {
+ ldb_debug(module->ldb, LDB_DEBUG_WARNING, "ldb_map: "
+ "Skipping attribute '%s': "
+ "'convert_operator' not set\n",
+ tree->u.equality.attr);
+ *new = NULL;
+ return 0;
+ }
+
+ return map_subtree_collect_remote_simple(module, mem_ctx, new, tree, map);
+}
+
+/* Split subtrees that query attributes in the local partition from
+ * those that query the remote partition. */
+static int ldb_parse_tree_partition(struct ldb_module *module, void *local_ctx, void *remote_ctx, struct ldb_parse_tree **local_tree, struct ldb_parse_tree **remote_tree, const struct ldb_parse_tree *tree)
+{
+ int ret;
+
+ *local_tree = NULL;
+ *remote_tree = NULL;
+
+ /* No original tree */
+ if (tree == NULL) {
+ return 0;
+ }
+
+ /* Generate local tree */
+ ret = map_subtree_select_local(module, local_ctx, local_tree, tree);
+ if (ret) {
+ return ret;
+ }
+
+ /* Generate remote tree */
+ ret = map_subtree_collect_remote(module, remote_ctx, remote_tree, tree);
+ if (ret) {
+ talloc_free(*local_tree);
+ return ret;
+ }
+
+ return 0;
+}
+
+/* Collect a list of attributes required either explicitly from a
+ * given list or implicitly from a given parse tree; split the
+ * collected list into local and remote parts. */
+static int map_attrs_collect_and_partition(struct ldb_module *module, void *local_ctx, void *remote_ctx, const char ***local_attrs, const char ***remote_attrs, const char * const *search_attrs, const struct ldb_parse_tree *tree)
+{
+ void *tmp_ctx;
+ const char **tree_attrs;
+ int ret;
+
+ /* Clear initial lists of partitioned attributes */
+ *local_attrs = NULL;
+ *remote_attrs = NULL;
+
+ /* There are no searched attributes, just stick to that */
+ if (search_attrs == NULL) {
+ return 0;
+ }
+
+ /* There is no tree, just partition the searched attributes */
+ if (tree == NULL) {
+ return map_attrs_partition(module, local_ctx, remote_ctx, local_attrs, remote_attrs, search_attrs);
+ }
+
+ /* Create context for temporary memory */
+ tmp_ctx = talloc_new(local_ctx);
+ if (tmp_ctx == NULL) {
+ goto oom;
+ }
+
+ /* Prepare list of attributes from tree */
+ tree_attrs = talloc_array(tmp_ctx, const char *, 1);
+ if (tree_attrs == NULL) {
+ talloc_free(tmp_ctx);
+ goto oom;
+ }
+ tree_attrs[0] = NULL;
+
+ /* Collect attributes from tree */
+ ret = ldb_parse_tree_collect_attrs(module, tmp_ctx, &tree_attrs, tree);
+ if (ret) {
+ goto done;
+ }
+
+ /* Merge attributes from search operation */
+ ret = map_attrs_merge(module, tmp_ctx, &tree_attrs, search_attrs);
+ if (ret) {
+ goto done;
+ }
+
+ /* Split local from remote attributes */
+ ret = map_attrs_partition(module, local_ctx, remote_ctx, local_attrs, remote_attrs, tree_attrs);
+
+done:
+ /* Free temporary memory */
+ talloc_free(tmp_ctx);
+ return ret;
+
+oom:
+ map_oom(module);
+ return -1;
+}
+
+
+/* Outbound requests: search
+ * ========================= */
+
+/* Pass a merged search result up the callback chain. */
+int map_up_callback(struct ldb_context *ldb, const struct ldb_request *req, struct ldb_reply *ares)
+{
+ int i;
+
+ /* No callback registered, stop */
+ if (req->callback == NULL) {
+ return LDB_SUCCESS;
+ }
+
+ /* Only records need special treatment */
+ if (ares->type != LDB_REPLY_ENTRY) {
+ return req->callback(ldb, req->context, ares);
+ }
+
+ /* Merged result doesn't match original query, skip */
+ if (!ldb_match_msg(ldb, ares->message, req->op.search.tree, req->op.search.base, req->op.search.scope)) {
+ ldb_debug(ldb, LDB_DEBUG_TRACE, "ldb_map: "
+ "Skipping record '%s': "
+ "doesn't match original search\n",
+ ldb_dn_linearize(ldb, ares->message->dn));
+ return LDB_SUCCESS;
+ }
+
+ /* Limit result to requested attrs */
+ if ((req->op.search.attrs) && (!ldb_attr_in_list(req->op.search.attrs, "*"))) {
+ for (i = 0; i < ares->message->num_elements; i++) {
+ const struct ldb_message_element *el = &ares->message->elements[i];
+ if (!ldb_attr_in_list(req->op.search.attrs, el->name)) {
+ ldb_msg_remove_attr(ares->message, el->name);
+ }
+ }
+ }
+
+ return req->callback(ldb, req->context, ares);
+}
+
+/* Merge the remote and local parts of a search result. */
+int map_local_merge_callback(struct ldb_context *ldb, void *context, struct ldb_reply *ares)
+{
+ struct map_search_context *sc;
+ int ret;
+
+ if (context == NULL || ares == NULL) {
+ ldb_set_errstring(ldb, talloc_asprintf(ldb, "ldb_map: "
+ "NULL Context or Result in `map_local_merge_callback`"));
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ sc = talloc_get_type(context, struct map_search_context);
+
+ switch (ares->type) {
+ case LDB_REPLY_ENTRY:
+ /* We have already found a local record */
+ if (sc->local_res) {
+ ldb_set_errstring(ldb, talloc_asprintf(ldb, "ldb_map: "
+ "Too many results to base search for local entry"));
+ talloc_free(ares);
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ /* Store local result */
+ sc->local_res = ares;
+
+ /* Merge remote into local message */
+ ret = ldb_msg_merge_local(sc->ac->module, ares->message, sc->remote_res->message);
+ if (ret) {
+ talloc_free(ares);
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ return map_up_callback(ldb, sc->ac->orig_req, ares);
+
+ case LDB_REPLY_DONE:
+ /* No local record found, continue with remote record */
+ if (sc->local_res == NULL) {
+ return map_up_callback(ldb, sc->ac->orig_req, sc->remote_res);
+ }
+ return LDB_SUCCESS;
+
+ default:
+ ldb_set_errstring(ldb, talloc_asprintf(ldb, "ldb_map: "
+ "Unexpected result type in base search for local entry"));
+ talloc_free(ares);
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+}
+
+/* Search the local part of a remote search result. */
+int map_remote_search_callback(struct ldb_context *ldb, void *context, struct ldb_reply *ares)
+{
+ struct map_context *ac;
+ struct map_search_context *sc;
+ struct ldb_request *req;
+ int ret;
+
+ if (context == NULL || ares == NULL) {
+ ldb_set_errstring(ldb, talloc_asprintf(ldb, "ldb_map: "
+ "NULL Context or Result in `map_remote_search_callback`"));
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ ac = talloc_get_type(context, struct map_context);
+
+ /* It's not a record, stop searching */
+ if (ares->type != LDB_REPLY_ENTRY) {
+ return map_up_callback(ldb, ac->orig_req, ares);
+ }
+
+ /* Map result record into a local message */
+ ret = map_reply_remote(ac->module, ares);
+ if (ret) {
+ talloc_free(ares);
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ /* There is no local db, stop searching */
+ if (!map_check_local_db(ac->module)) {
+ return map_up_callback(ldb, ac->orig_req, ares);
+ }
+
+ /* Prepare local search context */
+ sc = map_init_search_context(ac, ares);
+ if (sc == NULL) {
+ talloc_free(ares);
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ /* Prepare local search request */
+ /* TODO: use GUIDs here instead? */
+
+ ac->search_reqs = talloc_realloc(ac, ac->search_reqs, struct ldb_request *, ac->num_searches + 2);
+ if (ac->search_reqs == NULL) {
+ talloc_free(ares);
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ ac->search_reqs[ac->num_searches]
+ = req = map_search_base_req(ac, ares->message->dn,
+ NULL, NULL, sc, map_local_merge_callback);
+ if (req == NULL) {
+ talloc_free(sc);
+ talloc_free(ares);
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+ ac->num_searches++;
+ ac->search_reqs[ac->num_searches] = NULL;
+
+ return ldb_next_request(ac->module, req);
+}
+
+/* Search a record. */
+int map_search(struct ldb_module *module, struct ldb_request *req)
+{
+ struct ldb_handle *h;
+ struct map_context *ac;
+ struct ldb_parse_tree *local_tree, *remote_tree;
+ const char **local_attrs, **remote_attrs;
+ int ret;
+
+ /* Do not manipulate our control entries */
+ if (ldb_dn_is_special(req->op.search.base))
+ return ldb_next_request(module, req);
+
+ /* No mapping requested, skip to next module */
+ if ((req->op.search.base) && (!ldb_dn_check_local(module, req->op.search.base))) {
+ return ldb_next_request(module, req);
+ }
+
+ /* TODO: How can we be sure about which partition we are
+ * targetting when there is no search base? */
+
+ /* Prepare context and handle */
+ h = map_init_handle(req, module);
+ if (h == NULL) {
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+ ac = talloc_get_type(h->private_data, struct map_context);
+
+ ac->search_reqs = talloc_array(ac, struct ldb_request *, 2);
+ if (ac->search_reqs == NULL) {
+ talloc_free(h);
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+ ac->num_searches = 1;
+ ac->search_reqs[1] = NULL;
+
+ /* Prepare the remote operation */
+ ac->search_reqs[0] = talloc(ac, struct ldb_request);
+ if (ac->search_reqs[0] == NULL) {
+ goto oom;
+ }
+
+ *(ac->search_reqs[0]) = *req; /* copy the request */
+
+ ac->search_reqs[0]->handle = h; /* return our own handle to deal with this call */
+
+ ac->search_reqs[0]->context = ac;
+ ac->search_reqs[0]->callback = map_remote_search_callback;
+
+ /* Split local from remote attrs */
+ ret = map_attrs_collect_and_partition(module, ac, ac->search_reqs[0], &local_attrs, &remote_attrs, req->op.search.attrs, req->op.search.tree);
+ if (ret) {
+ goto failed;
+ }
+
+ ac->local_attrs = local_attrs;
+ ac->search_reqs[0]->op.search.attrs = remote_attrs;
+
+ /* Split local from remote tree */
+ ret = ldb_parse_tree_partition(module, ac, ac->search_reqs[0], &local_tree, &remote_tree, req->op.search.tree);
+ if (ret) {
+ goto failed;
+ }
+
+ if (((local_tree == NULL) ^ (remote_tree == NULL)) &&
+ (!ldb_parse_tree_check_splittable(req->op.search.tree))) {
+ /* The query can't safely be split, enumerate the remote partition */
+ local_tree = NULL;
+ remote_tree = NULL;
+ }
+
+ if (local_tree == NULL) {
+ /* Construct default local parse tree */
+ local_tree = talloc_zero(ac, struct ldb_parse_tree);
+ if (local_tree == NULL) {
+ map_oom(ac->module);
+ goto failed;
+ }
+
+ local_tree->operation = LDB_OP_PRESENT;
+ local_tree->u.present.attr = talloc_strdup(local_tree, IS_MAPPED);
+ }
+ if (remote_tree == NULL) {
+ /* Construct default remote parse tree */
+ remote_tree = ldb_parse_tree(ac->search_reqs[0], NULL);
+ if (remote_tree == NULL) {
+ goto failed;
+ }
+ }
+
+ ac->local_tree = local_tree;
+ ac->search_reqs[0]->op.search.tree = remote_tree;
+
+ ldb_set_timeout_from_prev_req(module->ldb, req, ac->search_reqs[0]);
+
+ h->state = LDB_ASYNC_INIT;
+ h->status = LDB_SUCCESS;
+
+ ac->step = MAP_SEARCH_REMOTE;
+
+ ret = ldb_next_remote_request(module, ac->search_reqs[0]);
+ if (ret == LDB_SUCCESS) {
+ req->handle = h;
+ }
+ return ret;
+
+oom:
+ map_oom(module);
+failed:
+ talloc_free(h);
+ return LDB_ERR_OPERATIONS_ERROR;
+}
diff --git a/source4/lib/ldb/modules/ldb_map_private.h b/source4/lib/ldb/modules/ldb_map_private.h
new file mode 100644
index 0000000000..1b21fcf558
--- /dev/null
+++ b/source4/lib/ldb/modules/ldb_map_private.h
@@ -0,0 +1,118 @@
+
+/* A handy macro to report Out of Memory conditions */
+#define map_oom(module) ldb_set_errstring(module->ldb, talloc_asprintf(module, "Out of Memory"));
+
+/* The type of search callback functions */
+typedef int (*ldb_search_callback)(struct ldb_context *, void *, struct ldb_reply *);
+
+/* The special DN from which the local and remote base DNs are fetched */
+#define MAP_DN_NAME "@MAP"
+#define MAP_DN_FROM "@FROM"
+#define MAP_DN_TO "@TO"
+
+/* Private data structures
+ * ======================= */
+
+/* Global private data */
+struct map_private {
+ struct ldb_map_context context;
+};
+
+/* Context data for mapped requests */
+struct map_context {
+ enum map_step {
+ MAP_SEARCH_REMOTE,
+ MAP_ADD_REMOTE,
+ MAP_ADD_LOCAL,
+ MAP_SEARCH_SELF_MODIFY,
+ MAP_MODIFY_REMOTE,
+ MAP_MODIFY_LOCAL,
+ MAP_SEARCH_SELF_DELETE,
+ MAP_DELETE_REMOTE,
+ MAP_DELETE_LOCAL,
+ MAP_SEARCH_SELF_RENAME,
+ MAP_RENAME_REMOTE,
+ MAP_RENAME_FIXUP,
+ MAP_RENAME_LOCAL
+ } step;
+
+ struct ldb_module *module;
+
+ const struct ldb_dn *local_dn;
+ const struct ldb_parse_tree *local_tree;
+ const char * const *local_attrs;
+
+ struct ldb_request *orig_req;
+ struct ldb_request *local_req;
+ struct ldb_request *remote_req;
+ struct ldb_request *down_req;
+ struct ldb_request *search_req;
+
+ /* for search, we may have a lot of contexts */
+ int num_searches;
+ struct ldb_request **search_reqs;
+};
+
+/* Context data for mapped search requests */
+struct map_search_context {
+ struct map_context *ac;
+ struct ldb_reply *local_res;
+ struct ldb_reply *remote_res;
+};
+
+
+/* Common operations
+ * ================= */
+
+/* The following definitions come from lib/ldb/modules/ldb_map.c */
+const struct ldb_map_context *map_get_context(struct ldb_module *module);
+struct map_search_context *map_init_search_context(struct map_context *ac, struct ldb_reply *ares);
+struct ldb_handle *map_init_handle(struct ldb_request *req, struct ldb_module *module);
+
+int ldb_next_remote_request(struct ldb_module *module, struct ldb_request *request);
+
+BOOL map_check_local_db(struct ldb_module *module);
+BOOL map_attr_check_remote(const struct ldb_map_context *data, const char *attr);
+BOOL ldb_dn_check_local(struct ldb_module *module, const struct ldb_dn *dn);
+
+const struct ldb_map_attribute *map_attr_find_local(const struct ldb_map_context *data, const char *name);
+const struct ldb_map_attribute *map_attr_find_remote(const struct ldb_map_context *data, const char *name);
+
+const char *map_attr_map_local(void *mem_ctx, const struct ldb_map_attribute *map, const char *attr);
+const char *map_attr_map_remote(void *mem_ctx, const struct ldb_map_attribute *map, const char *attr);
+
+struct ldb_val ldb_val_map_local(struct ldb_module *module, void *mem_ctx, const struct ldb_map_attribute *map, struct ldb_val val);
+struct ldb_val ldb_val_map_remote(struct ldb_module *module, void *mem_ctx, const struct ldb_map_attribute *map, struct ldb_val val);
+
+struct ldb_dn *ldb_dn_map_local(struct ldb_module *module, void *mem_ctx, const struct ldb_dn *dn);
+struct ldb_dn *ldb_dn_map_remote(struct ldb_module *module, void *mem_ctx, const struct ldb_dn *dn);
+struct ldb_dn *ldb_dn_map_rebase_remote(struct ldb_module *module, void *mem_ctx, const struct ldb_dn *dn);
+
+struct ldb_request *map_search_base_req(struct map_context *ac, const struct ldb_dn *dn, const char * const *attrs, const struct ldb_parse_tree *tree, void *context, ldb_search_callback callback);
+struct ldb_request *map_search_self_req(struct map_context *ac, const struct ldb_dn *dn);
+struct ldb_request *map_build_fixup_req(struct map_context *ac, const struct ldb_dn *olddn, const struct ldb_dn *newdn);
+
+
+/* LDB Requests
+ * ============ */
+
+/* The following definitions come from lib/ldb/modules/ldb_map_inbound.c */
+int map_add_do_remote(struct ldb_handle *handle);
+int map_add_do_local(struct ldb_handle *handle);
+int map_add(struct ldb_module *module, struct ldb_request *req);
+
+int map_modify_do_remote(struct ldb_handle *handle);
+int map_modify_do_local(struct ldb_handle *handle);
+int map_modify(struct ldb_module *module, struct ldb_request *req);
+
+int map_delete_do_remote(struct ldb_handle *handle);
+int map_delete_do_local(struct ldb_handle *handle);
+int map_delete(struct ldb_module *module, struct ldb_request *req);
+
+int map_rename_do_remote(struct ldb_handle *handle);
+int map_rename_do_fixup(struct ldb_handle *handle);
+int map_rename_do_local(struct ldb_handle *handle);
+int map_rename(struct ldb_module *module, struct ldb_request *req);
+
+/* The following definitions come from lib/ldb/modules/ldb_map_outbound.c */
+int map_search(struct ldb_module *module, struct ldb_request *req);
diff --git a/testdata/samba3/samba3.ldif b/testdata/samba3/samba3.ldif
index 67c0ae1432..470f7ff246 100644
--- a/testdata/samba3/samba3.ldif
+++ b/testdata/samba3/samba3.ldif
@@ -1,19 +1,19 @@
-dn: sambaDomainName=TESTS,dc=vernstok,dc=nl
+dn: sambaDomainName=TESTS,${BASEDN}
objectclass: sambaDomain
objectclass: top
sambaSID: S-1-5-21-4231626423-2410014848-2360679739
sambaNextRid: 2000
sambaDomainName: TESTS
-dn: ou=Users,sambaDomainName=TESTS,dc=vernstok,dc=nl
+dn: ou=Users,sambaDomainName=TESTS,${BASEDN}
objectClass: organizationalUnit
ou: Users
-dn: ou=Groups,sambaDomainName=TESTS,dc=vernstok,dc=nl
+dn: ou=Groups,sambaDomainName=TESTS,${BASEDN}
objectClass: organizationalUnit
ou: Groups
-dn: uid=nobody,ou=Users,sambaDomainName=TESTS,dc=vernstok,dc=nl
+dn: uid=nobody,ou=Users,sambaDomainName=TESTS,${BASEDN}
cn: nobody
sn: nobody
objectClass: inetOrgPerson
@@ -40,7 +40,7 @@ sambaAcctFlags: [NU ]
sambaSID: S-1-5-21-4231626423-2410014848-2360679739-2998
loginShell: /bin/false
-dn: cn=Domain Admins,ou=Groups,sambaDomainName=TESTS,dc=vernstok,dc=nl
+dn: cn=Domain Admins,ou=Groups,sambaDomainName=TESTS,${BASEDN}
objectClass: posixGroup
objectClass: sambaGroupMapping
gidNumber: 512
@@ -51,7 +51,7 @@ sambaSID: S-1-5-21-4231626423-2410014848-2360679739-512
sambaGroupType: 2
displayName: Domain Admins
-dn: cn=Domain Users,ou=Groups,sambaDomainName=TESTS,dc=vernstok,dc=nl
+dn: cn=Domain Users,ou=Groups,sambaDomainName=TESTS,${BASEDN}
objectClass: posixGroup
objectClass: sambaGroupMapping
gidNumber: 513
@@ -61,7 +61,7 @@ sambaSID: S-1-5-21-4231626423-2410014848-2360679739-513
sambaGroupType: 2
displayName: Domain Users
-dn: cn=Domain Guests,ou=Groups,sambaDomainName=TESTS,dc=vernstok,dc=nl
+dn: cn=Domain Guests,ou=Groups,sambaDomainName=TESTS,${BASEDN}
objectClass: posixGroup
objectClass: sambaGroupMapping
gidNumber: 514
@@ -71,7 +71,7 @@ sambaSID: S-1-5-21-4231626423-2410014848-2360679739-514
sambaGroupType: 2
displayName: Domain Guests
-dn: cn=Print Operators,ou=Groups,sambaDomainName=TESTS,dc=vernstok,dc=nl
+dn: cn=Print Operators,ou=Groups,sambaDomainName=TESTS,${BASEDN}
objectClass: posixGroup
objectClass: sambaGroupMapping
gidNumber: 550
@@ -81,7 +81,7 @@ sambaSID: S-1-5-21-4231626423-2410014848-2360679739-550
sambaGroupType: 2
displayName: Print Operators
-dn: cn=Backup Operators,ou=Groups,sambaDomainName=TESTS,dc=vernstok,dc=nl
+dn: cn=Backup Operators,ou=Groups,sambaDomainName=TESTS,${BASEDN}
objectClass: posixGroup
objectClass: sambaGroupMapping
gidNumber: 551
@@ -91,7 +91,7 @@ sambaSID: S-1-5-21-4231626423-2410014848-2360679739-551
sambaGroupType: 2
displayName: Backup Operators
-dn: cn=Replicator,ou=Groups,sambaDomainName=TESTS,dc=vernstok,dc=nl
+dn: cn=Replicator,ou=Groups,sambaDomainName=TESTS,${BASEDN}
objectClass: posixGroup
objectClass: sambaGroupMapping
gidNumber: 552
@@ -101,7 +101,7 @@ sambaSID: S-1-5-21-4231626423-2410014848-2360679739-552
sambaGroupType: 2
displayName: Replicator
-dn: cn=Domain Computers,ou=Groups,sambaDomainName=TESTS,dc=vernstok,dc=nl
+dn: cn=Domain Computers,ou=Groups,sambaDomainName=TESTS,${BASEDN}
objectClass: posixGroup
objectClass: sambaGroupMapping
gidNumber: 553
@@ -111,7 +111,7 @@ sambaSID: S-1-5-21-4231626423-2410014848-2360679739-553
sambaGroupType: 2
displayName: Domain Computers
-dn: cn=Administrators,ou=Groups,sambaDomainName=TESTS,dc=vernstok,dc=nl
+dn: cn=Administrators,ou=Groups,sambaDomainName=TESTS,${BASEDN}
objectClass: posixGroup
objectClass: sambaGroupMapping
gidNumber: 544
@@ -121,7 +121,7 @@ sambaSID: S-1-5-21-4231626423-2410014848-2360679739-544
sambaGroupType: 2
displayName: Administrators
-dn: cn=Users,ou=Groups,sambaDomainName=TESTS,dc=vernstok,dc=nl
+dn: cn=Users,ou=Groups,sambaDomainName=TESTS,${BASEDN}
objectClass: posixGroup
objectClass: sambaGroupMapping
gidNumber: 545
@@ -131,7 +131,7 @@ sambaSID: S-1-5-21-4231626423-2410014848-2360679739-545
sambaGroupType: 2
displayName: users
-dn: cn=Guests,ou=Groups,sambaDomainName=TESTS,dc=vernstok,dc=nl
+dn: cn=Guests,ou=Groups,sambaDomainName=TESTS,${BASEDN}
objectClass: posixGroup
objectClass: sambaGroupMapping
gidNumber: 546
@@ -142,7 +142,7 @@ sambaSID: S-1-5-21-4231626423-2410014848-2360679739-546
sambaGroupType: 2
displayName: Guests
-dn: cn=Power Users,ou=Groups,sambaDomainName=TESTS,dc=vernstok,dc=nl
+dn: cn=Power Users,ou=Groups,sambaDomainName=TESTS,${BASEDN}
objectClass: posixGroup
objectClass: sambaGroupMapping
gidNumber: 547
@@ -152,7 +152,7 @@ sambaSID: S-1-5-21-4231626423-2410014848-2360679739-547
sambaGroupType: 2
displayName: Power Users
-dn: cn=Account Operators,ou=Groups,sambaDomainName=TESTS,dc=vernstok,dc=nl
+dn: cn=Account Operators,ou=Groups,sambaDomainName=TESTS,${BASEDN}
objectClass: posixGroup
objectClass: sambaGroupMapping
gidNumber: 548
@@ -162,7 +162,7 @@ sambaSID: S-1-5-21-4231626423-2410014848-2360679739-548
sambaGroupType: 2
displayName: Account Operators
-dn: cn=Server Operators,ou=Groups,sambaDomainName=TESTS,dc=vernstok,dc=nl
+dn: cn=Server Operators,ou=Groups,sambaDomainName=TESTS,${BASEDN}
objectClass: posixGroup
objectClass: sambaGroupMapping
gidNumber: 549
@@ -172,11 +172,11 @@ sambaSID: S-1-5-21-4231626423-2410014848-2360679739-549
sambaGroupType: 2
displayName: Server Operators
-dn: ou=Computers,sambaDomainName=TESTS,dc=vernstok,dc=nl
+dn: ou=Computers,sambaDomainName=TESTS,${BASEDN}
objectClass: organizationalUnit
ou: Computers
-dn: uid=Administrator,ou=Users,sambaDomainName=TESTS,dc=vernstok,dc=nl
+dn: uid=Administrator,ou=Users,sambaDomainName=TESTS,${BASEDN}
cn: Administrator
sn: Administrator
objectClass: inetOrgPerson
diff --git a/testprogs/ejs/samba3sam b/testprogs/ejs/samba3sam
index e9a610eea5..0f6d1a82ab 100755
--- a/testprogs/ejs/samba3sam
+++ b/testprogs/ejs/samba3sam
@@ -8,75 +8,92 @@ libinclude("base.js");
var mypath = substr(ARGV[0], 0, -strlen("samba3sam"));
var sys = sys_init();
-var s3url;
+var s3url = "tdb://samba3.ldb";
+var s4url = "tdb://samba4.ldb";
var s3 = ldb_init();
+var s4 = ldb_init();
+var msg;
var ok;
-if (ARGV.length == 2) {
- s3url = ARGV[1];
- ok = s3.connect(s3url);
- assert(ok);
-} else {
- s3url = "tdb://samba3.ldb";
- sys.unlink("samba3.ldb");
- println("Adding samba3 LDIF...");
- var s3 = ldb_init();
- ok = s3.connect(s3url);
- assert(ok);
- var ldif = sys.file_load(mypath + "../../testdata/samba3/samba3.ldif");
- assert(ldif != undefined);
- ok = s3.add(ldif);
- assert(ok);
-}
+var local = new Object();
+local.BASEDN = "dc=vernstok,dc=nl";
+var remote = new Object();
+remote.BASEDN = "CN=Samba3Sam," + local.BASEDN;
+
+var prt_ldif = sprintf("dn: @PARTITION
+partition: %s:%s
+partition: %s:%s", remote.BASEDN, s3url, local.BASEDN, s4url);
+
+var map_ldif = sprintf("dn: @MAP=samba3sam
+@FROM: %s
+@TO: %s", local.BASEDN, remote.BASEDN);
+
+var mod_ldif = "dn: @MODULES
+@LIST: rootdse,paged_results,server_sort,extended_dn,asq,samldb,objectclass,password_hash,operational,objectguid,rdn_name,samba3sam,partition";
+
+sys.unlink("samba3.ldb");
+ok = s3.connect(s3url);
+assert(ok);
+
+println("Initial samba3 LDIF...");
+var path = "../../testdata/samba3/samba3.ldif"
+var ldif = sys.file_load(mypath + path);
+ldif = substitute_var(ldif, remote);
+assert(ldif != undefined);
+ok = s3.add(ldif);
+assert(ok);
-println("Initial samba4 LDIF...");
-var s4 = ldb_init();
sys.unlink("samba4.ldb");
ok = s4.connect("tdb://samba4.ldb");
assert(ok);
-var ldif = sys.file_load(mypath + "../../source/setup/provision_init.ldif");
+println("Initial samba4 LDIF...");
+var path = "../../source/setup/provision_init.ldif";
+var ldif = sys.file_load(mypath + path);
+ldif = substitute_var(ldif, local);
assert(ldif != undefined);
ok = s4.add(ldif);
assert(ok);
-var ldif = sys.file_load(mypath + "../../source/setup/provision_templates.ldif");
-var subobj = new Object();
-subobj.BASEDN = "dc=vernstok,dc=nl";
-ldif = substitute_var(ldif, subobj);
+var path = "../../source/setup/provision_templates.ldif";
+var ldif = sys.file_load(mypath + path);
+ldif = substitute_var(ldif, local);
assert(ldif != undefined);
ok = s4.add(ldif);
assert(ok);
+println("Registering partitions...");
+var ldif = substitute_var(prt_ldif, local);
+assert(ldif != undefined);
+ok = s4.add(ldif);
+assert(ok);
-
-ok = s4.add(sprintf("dn: @MAP=samba3sam
-@MAP_URL: %s", s3url));
+println("Registering mapping...");
+var ldif = substitute_var(map_ldif, local);
+assert(ldif != undefined);
+ok = s4.add(ldif);
assert(ok);
-ok = s4.modify("
-dn: @MODULES
-replace: @LIST
-@LIST: samldb,timestamps,objectguid,rdn_name,samba3sam");
+println("Registering modules...");
+var ldif = substitute_var(mod_ldif, local);
+assert(ldif != undefined);
+ok = s4.add(ldif);
assert(ok);
-println("Reconnecting to LDB database");
+println("Reconnecting to LDB database...");
s4 = ldb_init();
-ok = s4.connect("tdb://samba4.ldb");
+ok = s4.connect(s4url);
assert(ok);
-msg = s4.search("(ou=Users)");
-assert(msg.length == 1);
-
println("Looking up by non-mapped attribute");
msg = s4.search("(cn=Administrator)");
-assert(msg[0].cn == "Administrator");
assert(msg.length == 1);
+assert(msg[0].cn == "Administrator");
println("Looking up by mapped attribute");
msg = s4.search("(name=Backup Operators)");
-assert(msg[0].name == "Backup Operators");
assert(msg.length == 1);
+assert(msg[0].name == "Backup Operators");
println("Looking up by old name of renamed attribute");
msg = s4.search("(displayName=Backup Operators)");
@@ -88,8 +105,9 @@ assert(msg.length == 1);
assert(msg[0].dn == "cn=Replicator,ou=Groups,sambaDomainName=TESTS,dc=vernstok,dc=nl");
assert(msg[0].objectSid == "S-1-5-21-4231626423-2410014848-2360679739-552");
-println("Checking mapping of objectclass");
-var oc = msg[0].objectclass;
+println("Checking mapping of objectClass");
+var oc = msg[0].objectClass;
+assert(oc != undefined);
for (var i in oc) {
assert(oc[i] == "posixGroup" || oc[i] == "group");
}
@@ -104,8 +122,13 @@ showInAdvancedViewOnly: TRUE
");
assert(ok);
-println("Checking for existance of record");
+println("Checking for existence of record (local)");
+/* TODO: This record must be searched in the local database, which is currently only supported for base searches
msg = s4.search("(cn=Foo)", new Array('foo','blah','cn','showInAdvancedViewOnly'));
+TODO: Actually, this version should work as well but doesn't...
+msg = s4.search("(cn=Foo)", "dc=idealx,dc=org", s4.LDB_SCOPE_SUBTREE new Array('foo','blah','cn','showInAdvancedViewOnly'));
+*/
+msg = s4.search("", "cn=Foo,dc=idealx,dc=org", s4.LDB_SCOPE_BASE new Array('foo','blah','cn','showInAdvancedViewOnly'));
assert(msg.length == 1);
assert(msg[0].showInAdvancedViewOnly == "TRUE");
assert(msg[0].foo == "bar");
@@ -121,10 +144,24 @@ cn: Niemand
");
assert(ok);
-println("Checking for existance of record (mapped)");
-msg = s4.search("(unixName=bin)", new Array('unixName','cn','dn'));
+println("Checking for existence of record (remote)");
+msg = s4.search("(unixName=bin)", new Array('unixName','cn','dn', 'unicodePwd'));
assert(msg.length == 1);
+assert(msg[0].cn == "Niemand");
+assert(msg[0].unicodePwd == "geheim");
+
+println("Checking for existence of record (local && remote)");
+msg = s4.search("(&(unixName=bin)(unicodePwd=geheim))", new Array('unixName','cn','dn', 'unicodePwd'));
+assert(msg.length == 1); // TODO: should check with more records
+assert(msg[0].cn == "Niemand");
+assert(msg[0].unixName == "bin");
+assert(msg[0].unicodePwd == "geheim");
+
+println("Checking for existence of record (local || remote)");
+msg = s4.search("(|(unixName=bin)(unicodePwd=geheim))", new Array('unixName','cn','dn', 'unicodePwd'));
+assert(msg.length == 1); // TODO: should check with more records
assert(msg[0].cn == "Niemand");
+assert(msg[0].unixName == "bin" || msg[0].unicodePwd == "geheim");
println("Checking for data in destination database");
msg = s3.search("(cn=Niemand)");
generated by cgit (git 2.34.1) at 2024-05-16 19:54:22 +0000