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Diffstat (limited to 'ldb/ldb_map/ldb_map.c')
-rw-r--r--ldb/ldb_map/ldb_map.c1103
1 files changed, 0 insertions, 1103 deletions
diff --git a/ldb/ldb_map/ldb_map.c b/ldb/ldb_map/ldb_map.c
deleted file mode 100644
index 72d8378a..00000000
--- a/ldb/ldb_map/ldb_map.c
+++ /dev/null
@@ -1,1103 +0,0 @@
-/*
- ldb database mapping module
-
- Copyright (C) Jelmer Vernooij 2005
- Copyright (C) Martin Kuehl <mkhl@samba.org> 2006
- Copyright (C) Simo Sorce 2008
-
- ** 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 3 of the License, or (at your option) any later version.
-
- 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
- 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, see <http://www.gnu.org/licenses/>.
-
-*/
-
-/*
- * 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 "ldb_includes.h"
-
-#include "ldb_map.h"
-#include "ldb_map_private.h"
-
-#ifndef _PUBLIC_
-#define _PUBLIC_
-#endif
-
-/* Description of the provided ldb requests:
- - special attribute 'isMapped'
-
- - 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
-*/
-
-
-
-/* Private data structures
- * ======================= */
-
-/* Global private data */
-/* Extract mappings from private data. */
-const struct ldb_map_context *map_get_context(struct ldb_module *module)
-{
- const struct map_private *data = talloc_get_type(module->private_data, struct map_private);
- return data->context;
-}
-
-/* Create a generic request context. */
-struct map_context *map_init_context(struct ldb_module *module,
- struct ldb_request *req)
-{
- struct map_context *ac;
-
- ac = talloc_zero(req, struct map_context);
- if (ac == NULL) {
- ldb_set_errstring(module->ldb, "Out of Memory");
- return NULL;
- }
-
- ac->module = module;
- ac->req = req;
-
- return ac;
-}
-
-/* Dealing with DNs for different partitions
- * ========================================= */
-
-/* Check whether any data should be stored in the local partition. */
-bool map_check_local_db(struct ldb_module *module)
-{
- const struct ldb_map_context *data = map_get_context(module);
-
- if (!data->remote_base_dn || !data->local_base_dn) {
- return false;
- }
-
- return true;
-}
-
-/* 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, struct ldb_dn *dn)
-{
- struct ldb_dn *new_dn;
-
- new_dn = ldb_dn_copy(mem_ctx, dn);
- if ( ! ldb_dn_validate(new_dn)) {
- talloc_free(new_dn);
- return NULL;
- }
-
- /* may be we don't need to rebase at all */
- if ( ! data->remote_base_dn || ! data->local_base_dn) {
- return new_dn;
- }
-
- if ( ! ldb_dn_remove_base_components(new_dn, ldb_dn_get_comp_num(data->remote_base_dn))) {
- talloc_free(new_dn);
- return NULL;
- }
-
- if ( ! ldb_dn_add_base(new_dn, data->local_base_dn)) {
- talloc_free(new_dn);
- return NULL;
- }
-
- return new_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, struct ldb_dn *dn)
-{
- struct ldb_dn *new_dn;
-
- new_dn = ldb_dn_copy(mem_ctx, dn);
- if ( ! ldb_dn_validate(new_dn)) {
- talloc_free(new_dn);
- return NULL;
- }
-
- /* may be we don't need to rebase at all */
- if ( ! data->remote_base_dn || ! data->local_base_dn) {
- return new_dn;
- }
-
- if ( ! ldb_dn_remove_base_components(new_dn, ldb_dn_get_comp_num(data->local_base_dn))) {
- talloc_free(new_dn);
- return NULL;
- }
-
- if ( ! ldb_dn_add_base(new_dn, data->remote_base_dn)) {
- talloc_free(new_dn);
- return NULL;
- }
-
- return new_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;
-
- 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;
-
- 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;
-
- case LDB_DELETE:
- request->op.del.dn = ldb_dn_rebase_remote(request, data, request->op.del.dn);
- break;
-
- 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;
-
- default:
- ldb_debug(module->ldb, LDB_DEBUG_ERROR, "ldb_map: "
- "Invalid remote request!\n");
- return LDB_ERR_OPERATIONS_ERROR;
- }
-
- return ldb_next_request(module, request);
-}
-
-
-/* Finding mappings for attributes and objectClasses
- * ================================================= */
-
-/* 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;
-
- 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];
- }
- }
-
- return NULL;
-}
-
-/* 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 NULL;
-}
-
-/* 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)
-{
- int i;
-
- 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];
- }
- }
-
- return NULL;
-}
-
-/* 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 *map;
- const struct ldb_map_attribute *wildcard = NULL;
- int i, j;
-
- for (i = 0; data->attribute_maps[i].local_name; i++) {
- map = &data->attribute_maps[i];
- if (ldb_attr_cmp(map->local_name, "*") == 0) {
- wildcard = &data->attribute_maps[i];
- }
-
- switch (map->type) {
- case MAP_IGNORE:
- break;
-
- case MAP_KEEP:
- if (ldb_attr_cmp(map->local_name, name) == 0) {
- return map;
- }
- break;
-
- case MAP_RENAME:
- case MAP_CONVERT:
- if (ldb_attr_cmp(map->u.rename.remote_name, name) == 0) {
- return map;
- }
- break;
-
- case MAP_GENERATE:
- for (j = 0; map->u.generate.remote_names && map->u.generate.remote_names[j]; j++) {
- if (ldb_attr_cmp(map->u.generate.remote_names[j], name) == 0) {
- return map;
- }
- }
- break;
- }
- }
-
- /* We didn't find it, so return the wildcard record if one was configured */
- return wildcard;
-}
-
-
-/* Mapping attributes
- * ================== */
-
-/* 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);
-
- if (map == NULL) {
- return false;
- }
- if (map->type == MAP_IGNORE) {
- return false;
- }
-
- return true;
-}
-
-/* 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)
-{
- if (map == NULL) {
- return talloc_strdup(mem_ctx, attr);
- }
-
- switch (map->type) {
- case MAP_KEEP:
- return talloc_strdup(mem_ctx, attr);
-
- case MAP_RENAME:
- case MAP_CONVERT:
- return talloc_strdup(mem_ctx, map->u.rename.remote_name);
-
- default:
- return NULL;
- }
-}
-
-/* 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);
- }
-
- if (map->type == MAP_KEEP) {
- return talloc_strdup(mem_ctx, attr);
- }
-
- return talloc_strdup(mem_ctx, map->local_name);
-}
-
-
-/* Merge two lists of attributes into a single one. */
-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 && (*attrs)[i]; i++) /* noop */ ;
- for (j = 0; more_attrs && 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 into the remote partition. */
-struct ldb_val ldb_val_map_local(struct ldb_module *module, void *mem_ctx,
- const struct ldb_map_attribute *map, const 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);
- }
-
- return ldb_val_dup(mem_ctx, val);
-}
-
-/* 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, const 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 ldb_val_dup(mem_ctx, val);
-}
-
-
-/* Mapping DNs
- * =========== */
-
-/* Check whether a DN is below the local baseDN. */
-bool ldb_dn_check_local(struct ldb_module *module, struct ldb_dn *dn)
-{
- const struct ldb_map_context *data = map_get_context(module);
-
- if (!data->local_base_dn) {
- return true;
- }
-
- return ldb_dn_compare_base(data->local_base_dn, dn) == 0;
-}
-
-/* Map a DN into the remote partition. */
-struct ldb_dn *ldb_dn_map_local(struct ldb_module *module, void *mem_ctx, struct ldb_dn *dn)
-{
- const struct ldb_map_context *data = map_get_context(module);
- struct ldb_dn *newdn;
- const struct ldb_map_attribute *map;
- enum ldb_map_attr_type map_type;
- const char *name;
- struct ldb_val value;
- int i, ret;
-
- if (dn == NULL) {
- return NULL;
- }
-
- newdn = ldb_dn_copy(mem_ctx, dn);
- if (newdn == NULL) {
- map_oom(module);
- return NULL;
- }
-
- /* For each RDN, map the component name and possibly the value */
- for (i = 0; i < ldb_dn_get_comp_num(newdn); i++) {
- map = map_attr_find_local(data, ldb_dn_get_component_name(dn, i));
-
- /* 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:
- case MAP_GENERATE:
- ldb_debug(module->ldb, LDB_DEBUG_ERROR, "ldb_map: "
- "MAP_IGNORE/MAP_GENERATE attribute '%s' "
- "used in DN!\n", ldb_dn_get_component_name(dn, i));
- 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", ldb_dn_get_component_name(dn, i));
- goto failed;
- }
- /* fall through */
- case MAP_KEEP:
- case MAP_RENAME:
- name = map_attr_map_local(newdn, map, ldb_dn_get_component_name(dn, i));
- if (name == NULL) goto failed;
-
- value = ldb_val_map_local(module, newdn, map, ldb_dn_get_component_val(dn, i));
- if (value.data == NULL) goto failed;
-
- ret = ldb_dn_set_component(newdn, i, name, value);
- if (ret != LDB_SUCCESS) {
- goto failed;
- }
-
- break;
- }
- }
-
- return newdn;
-
-failed:
- talloc_free(newdn);
- return NULL;
-}
-
-/* Map a DN into the local partition. */
-struct ldb_dn *ldb_dn_map_remote(struct ldb_module *module, void *mem_ctx, struct ldb_dn *dn)
-{
- const struct ldb_map_context *data = map_get_context(module);
- struct ldb_dn *newdn;
- const struct ldb_map_attribute *map;
- enum ldb_map_attr_type map_type;
- const char *name;
- struct ldb_val value;
- int i, ret;
-
- if (dn == NULL) {
- return NULL;
- }
-
- newdn = ldb_dn_copy(mem_ctx, dn);
- if (newdn == NULL) {
- map_oom(module);
- return NULL;
- }
-
- /* For each RDN, map the component name and possibly the value */
- for (i = 0; i < ldb_dn_get_comp_num(newdn); i++) {
- map = map_attr_find_remote(data, ldb_dn_get_component_name(dn, i));
-
- /* 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:
- case MAP_GENERATE:
- ldb_debug(module->ldb, LDB_DEBUG_ERROR, "ldb_map: "
- "MAP_IGNORE/MAP_GENERATE attribute '%s' "
- "used in DN!\n", ldb_dn_get_component_name(dn, i));
- goto failed;
-
- 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", ldb_dn_get_component_name(dn, i));
- goto failed;
- }
- /* fall through */
- case MAP_KEEP:
- case MAP_RENAME:
- name = map_attr_map_remote(newdn, map, ldb_dn_get_component_name(dn, i));
- if (name == NULL) goto failed;
-
- value = ldb_val_map_remote(module, newdn, map, ldb_dn_get_component_val(dn, i));
- if (value.data == NULL) goto failed;
-
- ret = ldb_dn_set_component(newdn, i, name, value);
- if (ret != LDB_SUCCESS) {
- goto failed;
- }
-
- break;
- }
- }
-
- return newdn;
-
-failed:
- talloc_free(newdn);
- return NULL;
-}
-
-/* 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, struct ldb_dn *dn)
-{
- const struct ldb_map_context *data = map_get_context(module);
- struct ldb_dn *dn1, *dn2;
-
- dn1 = ldb_dn_rebase_local(mem_ctx, data, dn);
- dn2 = ldb_dn_map_remote(module, mem_ctx, dn1);
-
- talloc_free(dn1);
- return dn2;
-}
-
-
-/* Converting DNs and objectClasses (as ldb values)
- * ================================================ */
-
-/* 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;
-
- dn = ldb_dn_from_ldb_val(mem_ctx, module->ldb, val);
- if (! ldb_dn_validate(dn)) {
- newval.length = 0;
- newval.data = NULL;
- talloc_free(dn);
- return newval;
- }
- newdn = ldb_dn_map_local(module, mem_ctx, dn);
- talloc_free(dn);
-
- newval.length = 0;
- newval.data = (uint8_t *)ldb_dn_alloc_linearized(mem_ctx, newdn);
- if (newval.data) {
- newval.length = strlen((char *)newval.data);
- }
- talloc_free(newdn);
-
- return newval;
-}
-
-/* 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)
-{
- struct ldb_dn *dn, *newdn;
- struct ldb_val newval;
-
- dn = ldb_dn_from_ldb_val(mem_ctx, module->ldb, val);
- if (! ldb_dn_validate(dn)) {
- newval.length = 0;
- newval.data = NULL;
- talloc_free(dn);
- return newval;
- }
- newdn = ldb_dn_map_remote(module, mem_ctx, dn);
- talloc_free(dn);
-
- newval.length = 0;
- newval.data = (uint8_t *)ldb_dn_alloc_linearized(mem_ctx, newdn);
- if (newval.data) {
- newval.length = strlen((char *)newval.data);
- }
- talloc_free(newdn);
-
- return newval;
-}
-
-/* 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_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;
- }
-
- return ldb_val_dup(mem_ctx, val);
-}
-
-/* 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)
-{
- const struct ldb_map_context *data = map_get_context(module);
- 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, "objectClass");
- if (oc == NULL) {
- return;
- }
-
- /* Prepare new element */
- el = talloc_zero(remote, struct ldb_message_element);
- if (el == NULL) {
- ldb_oom(module->ldb);
- return; /* TODO: fail? */
- }
-
- /* 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? */
- }
-
- /* Copy local element name "objectClass" */
- el->name = talloc_strdup(el, local_attr);
-
- /* 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, data->add_objectclass) == 0) {
- found_extensibleObject = true;
- }
- }
-
- if (!found_extensibleObject) {
- val.data = (uint8_t *)talloc_strdup(el->values, data->add_objectclass);
- val.length = strlen((char *)val.data);
-
- /* Append additional objectClass data->add_objectclass */
- el->values[i] = val;
- } else {
- el->num_values--;
- }
-
- /* Add new objectClass to remote message */
- ldb_msg_add(remote, el, 0);
-}
-
-/* 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)
-{
- 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 ldb_val_dup(mem_ctx, val);
-}
-
-/* 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 *local_attr, const struct ldb_message *remote)
-{
- const struct ldb_map_context *data = map_get_context(module);
- struct ldb_message_element *el, *oc;
- struct ldb_val val;
- int i;
-
- /* Find old remote objectClass */
- oc = ldb_msg_find_element(remote, "objectClass");
- if (oc == NULL) {
- return NULL;
- }
-
- /* Prepare new element */
- el = talloc_zero(mem_ctx, struct ldb_message_element);
- if (el == NULL) {
- ldb_oom(module->ldb);
- return NULL;
- }
-
- /* 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, local_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, data->add_objectclass);
- val.length = strlen((char *)val.data);
-
- /* Remove last value if it was the string in data->add_objectclass (eg samba4top, 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;
- }
- }
-
- return el;
-}
-
-static const struct ldb_map_attribute objectclass_convert_map = {
- .local_name = "objectClass",
- .type = MAP_CONVERT,
- .u = {
- .convert = {
- .remote_name = "objectClass",
- .convert_local = map_objectclass_convert_local,
- .convert_remote = map_objectclass_convert_remote,
- },
- },
-};
-
-
-/* Mappings for searches on objectClass= assuming a one-to-one
- * mapping. Needed because this is a generate operator for the
- * add/modify code */
-static int map_objectclass_convert_operator(struct ldb_module *module, void *mem_ctx,
- struct ldb_parse_tree **new, const struct ldb_parse_tree *tree)
-{
-
- return map_subtree_collect_remote_simple(module, mem_ctx, new, tree, &objectclass_convert_map);
-}
-
-/* Auxiliary request construction
- * ============================== */
-
-/* Build a request to search a record by its DN. */
-struct ldb_request *map_search_base_req(struct map_context *ac, struct ldb_dn *dn, const char * const *attrs, const struct ldb_parse_tree *tree, void *context, ldb_map_callback_t callback)
-{
- const struct ldb_parse_tree *search_tree;
- struct ldb_request *req;
- int ret;
-
- if (tree) {
- search_tree = tree;
- } else {
- search_tree = ldb_parse_tree(ac, NULL);
- if (search_tree == NULL) {
- return NULL;
- }
- }
-
- ret = ldb_build_search_req_ex(&req, ac->module->ldb, ac,
- dn, LDB_SCOPE_BASE,
- search_tree, attrs,
- NULL,
- context, callback,
- ac->req);
- if (ret != LDB_SUCCESS) {
- return NULL;
- }
-
- return req;
-}
-
-/* Build a request to update the 'IS_MAPPED' attribute */
-struct ldb_request *map_build_fixup_req(struct map_context *ac,
- struct ldb_dn *olddn,
- struct ldb_dn *newdn,
- void *context,
- ldb_map_callback_t callback)
-{
- struct ldb_request *req;
- struct ldb_message *msg;
- const char *dn;
- int ret;
-
- /* Prepare message */
- msg = ldb_msg_new(ac);
- if (msg == NULL) {
- map_oom(ac->module);
- return NULL;
- }
-
- /* Update local 'IS_MAPPED' to the new remote DN */
- msg->dn = ldb_dn_copy(msg, olddn);
- dn = ldb_dn_alloc_linearized(msg, newdn);
- if ( ! dn || ! ldb_dn_validate(msg->dn)) {
- goto failed;
- }
- if (ldb_msg_add_empty(msg, IS_MAPPED, LDB_FLAG_MOD_REPLACE, NULL) != 0) {
- goto failed;
- }
- if (ldb_msg_add_string(msg, IS_MAPPED, dn) != 0) {
- goto failed;
- }
-
- /* Prepare request */
- ret = ldb_build_mod_req(&req, ac->module->ldb,
- ac, msg, NULL,
- context, callback,
- ac->req);
- if (ret != LDB_SUCCESS) {
- goto failed;
- }
- talloc_steal(req, msg);
-
- return req;
-failed:
- talloc_free(msg);
- return NULL;
-}
-
-/* Module initialization
- * ===================== */
-
-
-/* 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 = NULL,
- }
-};
-
-static const struct ldb_map_attribute objectclass_attribute_map = {
- .local_name = "objectClass",
- .type = MAP_GENERATE,
- .convert_operator = map_objectclass_convert_operator,
- .u = {
- .generate = {
- .remote_names = { "objectClass", NULL },
- .generate_local = map_objectclass_generate_local,
- .generate_remote = map_objectclass_generate_remote,
- },
- },
-};
-
-
-/* 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)
-{
- 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;
-
- if (!name) {
- data->local_base_dn = NULL;
- data->remote_base_dn = NULL;
- return LDB_SUCCESS;
- }
-
- dn = ldb_dn_new_fmt(data, module->ldb, "%s=%s", MAP_DN_NAME, name);
- if ( ! ldb_dn_validate(dn)) {
- 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, data, &res, dn, LDB_SCOPE_BASE, attrs, NULL);
- talloc_free(dn);
- 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);
- talloc_free(res);
- 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);
- talloc_free(res);
- return LDB_ERR_CONSTRAINT_VIOLATION;
- }
-
- msg = res->msgs[0];
- data->local_base_dn = ldb_msg_find_attr_as_dn(module->ldb, data, msg, MAP_DN_FROM);
- data->remote_base_dn = ldb_msg_find_attr_as_dn(module->ldb, data, msg, MAP_DN_TO);
- talloc_free(res);
-
- return LDB_SUCCESS;
-}
-
-/* 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,
- const char * const *wildcard_attributes)
-{
- 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+2);
- if (data->attribute_maps == NULL) {
- map_oom(module);
- return LDB_ERR_OPERATIONS_ERROR;
- }
-
- /* Specified ones go first */
- for (i = 0; attrs[i].local_name; i++) {
- data->attribute_maps[last] = attrs[i];
- last++;
- }
-
- /* Built-in ones go last */
- for (i = 0; builtin_attribute_maps[i].local_name; i++) {
- data->attribute_maps[last] = builtin_attribute_maps[i];
- last++;
- }
-
- if (data->add_objectclass) {
- /* ObjectClass one is very last, if required */
- data->attribute_maps[last] = objectclass_attribute_map;
- last++;
- } else if (ocls) {
- data->attribute_maps[last] = objectclass_convert_map;
- last++;
- }
-
- /* Ensure 'local_name == NULL' for the last entry */
- memset(&data->attribute_maps[last], 0, sizeof(struct ldb_map_attribute));
-
- /* Store list of objectClass maps */
- data->objectclass_maps = ocls;
-
- data->wildcard_attributes = wildcard_attributes;
-
- return LDB_SUCCESS;
-}
-
-/* Initialize global private data. */
-_PUBLIC_ int ldb_map_init(struct ldb_module *module, const struct ldb_map_attribute *attrs,
- const struct ldb_map_objectclass *ocls,
- const char * const *wildcard_attributes,
- const char *add_objectclass,
- const char *name)
-{
- struct map_private *data;
- int ret;
-
- /* Prepare private data */
- data = talloc_zero(module, struct map_private);
- if (data == NULL) {
- map_oom(module);
- return LDB_ERR_OPERATIONS_ERROR;
- }
-
- module->private_data = data;
-
- data->context = talloc_zero(data, struct ldb_map_context);
- if (!data->context) {
- map_oom(module);
- return LDB_ERR_OPERATIONS_ERROR;
- }
-
- /* Store local and remote baseDNs */
- ret = map_init_dns(module, data->context, name);
- if (ret != LDB_SUCCESS) {
- talloc_free(data);
- return ret;
- }
-
- data->context->add_objectclass = add_objectclass;
-
- /* Store list of attribute and objectClass maps */
- ret = map_init_maps(module, data->context, attrs, ocls, wildcard_attributes);
- if (ret != LDB_SUCCESS) {
- talloc_free(data);
- return ret;
- }
-
- return LDB_SUCCESS;
-}
generated by cgit (git 2.34.1) at 2025-01-10 09:44:24 +0000