diff options
Diffstat (limited to 'source4/dsdb/samdb/ldb_modules/subtree_rename.c')
| -rw-r--r-- | source4/dsdb/samdb/ldb_modules/subtree_rename.c | 202 |
1 files changed, 202 insertions, 0 deletions
diff --git a/source4/dsdb/samdb/ldb_modules/subtree_rename.c b/source4/dsdb/samdb/ldb_modules/subtree_rename.c new file mode 100644 index 0000000..be02e92 --- /dev/null +++ b/source4/dsdb/samdb/ldb_modules/subtree_rename.c @@ -0,0 +1,202 @@ +/* + ldb database library + + Copyright (C) Andrew Bartlett <abartlet@samba.org> 2006-2007 + Copyright (C) Stefan Metzmacher <metze@samba.org> 2007 + Copyright (C) Matthias Dieter Wallnöfer <mdw@samba.org> 2010-2011 + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. +*/ + +/* + * Name: ldb + * + * Component: ldb subtree rename module + * + * Description: Rename a subtree in LDB + * + * Author: Andrew Bartlett + */ + +#include "includes.h" +#include <ldb.h> +#include <ldb_module.h> +#include "libds/common/flags.h" +#include "dsdb/samdb/samdb.h" +#include "dsdb/samdb/ldb_modules/util.h" + +struct subtree_rename_context { + struct ldb_module *module; + struct ldb_request *req; + bool base_renamed; +}; + +static struct subtree_rename_context *subren_ctx_init(struct ldb_module *module, + struct ldb_request *req) +{ + struct subtree_rename_context *ac; + + + ac = talloc_zero(req, struct subtree_rename_context); + if (ac == NULL) { + return NULL; + } + + ac->module = module; + ac->req = req; + ac->base_renamed = false; + + return ac; +} + +static int subtree_rename_search_onelevel_callback(struct ldb_request *req, + struct ldb_reply *ares) +{ + struct subtree_rename_context *ac; + int ret; + + ac = talloc_get_type(req->context, struct subtree_rename_context); + + if (!ares) { + return ldb_module_done(ac->req, NULL, NULL, + LDB_ERR_OPERATIONS_ERROR); + } + if (ares->error != LDB_SUCCESS) { + return ldb_module_done(ac->req, ares->controls, + ares->response, ares->error); + } + + if (ac->base_renamed == false) { + ac->base_renamed = true; + + ret = dsdb_module_rename(ac->module, + ac->req->op.rename.olddn, + ac->req->op.rename.newdn, + DSDB_FLAG_NEXT_MODULE, req); + if (ret != LDB_SUCCESS) { + return ldb_module_done(ac->req, NULL, NULL, ret); + } + } + + switch (ares->type) { + case LDB_REPLY_ENTRY: + { + struct ldb_dn *old_dn = NULL; + struct ldb_dn *new_dn = NULL; + + old_dn = ares->message->dn; + new_dn = ldb_dn_copy(ares, old_dn); + if (!new_dn) { + return ldb_module_oom(ac->module); + } + + if ( ! ldb_dn_remove_base_components(new_dn, + ldb_dn_get_comp_num(ac->req->op.rename.olddn))) { + return ldb_module_done(ac->req, NULL, NULL, + LDB_ERR_OPERATIONS_ERROR); + } + + if ( ! ldb_dn_add_base(new_dn, ac->req->op.rename.newdn)) { + return ldb_module_done(ac->req, NULL, NULL, + LDB_ERR_OPERATIONS_ERROR); + } + ret = dsdb_module_rename(ac->module, old_dn, new_dn, DSDB_FLAG_OWN_MODULE, req); + if (ret != LDB_SUCCESS) { + return ldb_module_done(ac->req, NULL, NULL, ret); + } + + talloc_free(ares); + + return LDB_SUCCESS; + } + case LDB_REPLY_REFERRAL: + /* ignore */ + break; + case LDB_REPLY_DONE: + talloc_free(ares); + return ldb_module_done(ac->req, NULL, NULL, LDB_SUCCESS); + default: + { + struct ldb_context *ldb = ldb_module_get_ctx(ac->module); + + ldb_asprintf_errstring(ldb, "Invalid LDB reply type %d", ares->type); + return ldb_module_done(ac->req, NULL, NULL, + LDB_ERR_OPERATIONS_ERROR); + } + } + + return LDB_SUCCESS; +} + +/* rename */ +static int subtree_rename(struct ldb_module *module, struct ldb_request *req) +{ + struct ldb_context *ldb; + static const char * const no_attrs[] = {NULL}; + struct ldb_request *search_req; + struct subtree_rename_context *ac; + int ret; + + if (ldb_dn_is_special(req->op.rename.olddn)) { /* do not manipulate our control entries */ + return ldb_next_request(module, req); + } + + ldb = ldb_module_get_ctx(module); + + /* + * This gets complex: We need to: + * - Do a search for all entries under this entry + * - Wait for these results to appear + * - Do our own rename (in first callback) + * - In the callback for each result, issue a dsdb_module_rename() + */ + + ac = subren_ctx_init(module, req); + if (!ac) { + return ldb_oom(ldb); + } + + ret = ldb_build_search_req(&search_req, ldb_module_get_ctx(ac->module), ac, + ac->req->op.rename.olddn, + LDB_SCOPE_ONELEVEL, + "(objectClass=*)", + no_attrs, + NULL, + ac, + subtree_rename_search_onelevel_callback, + req); + LDB_REQ_SET_LOCATION(search_req); + if (ret != LDB_SUCCESS) { + return ret; + } + + ret = ldb_request_add_control(search_req, LDB_CONTROL_SHOW_RECYCLED_OID, + true, NULL); + if (ret != LDB_SUCCESS) { + return ret; + } + + return ldb_next_request(ac->module, search_req); +} + +static const struct ldb_module_ops ldb_subtree_rename_module_ops = { + .name = "subtree_rename", + .rename = subtree_rename +}; + +int ldb_subtree_rename_module_init(const char *version) +{ + LDB_MODULE_CHECK_VERSION(version); + return ldb_register_module(&ldb_subtree_rename_module_ops); +} |