diff options
Diffstat (limited to 'source4/lib/ldb/ldb_map')
| -rw-r--r-- | source4/lib/ldb/ldb_map/ldb_map.c | 357 | ||||
| -rw-r--r-- | source4/lib/ldb/ldb_map/ldb_map.h | 4 | ||||
| -rw-r--r-- | source4/lib/ldb/ldb_map/ldb_map_inbound.c | 754 | ||||
| -rw-r--r-- | source4/lib/ldb/ldb_map/ldb_map_outbound.c | 443 | ||||
| -rw-r--r-- | source4/lib/ldb/ldb_map/ldb_map_private.h | 90 |
5 files changed, 746 insertions, 902 deletions
diff --git a/source4/lib/ldb/ldb_map/ldb_map.c b/source4/lib/ldb/ldb_map/ldb_map.c index b3f639dc67..fafbb63b0a 100644 --- a/source4/lib/ldb/ldb_map/ldb_map.c +++ b/source4/lib/ldb/ldb_map/ldb_map.c @@ -3,6 +3,7 @@ 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 @@ -106,69 +107,23 @@ const struct ldb_map_context *map_get_context(struct ldb_module *module) } /* Create a generic request context. */ -static struct map_context *map_init_context(struct ldb_handle *h, struct ldb_request *req) +struct map_context *map_init_context(struct ldb_module *module, + struct ldb_request *req) { struct map_context *ac; - ac = talloc_zero(h, struct map_context); + ac = talloc_zero(req, struct map_context); if (ac == NULL) { - map_oom(h->module); + ldb_set_errstring(module->ldb, "Out of Memory"); return NULL; } - ac->module = h->module; - ac->orig_req = req; + ac->module = module; + ac->req = req; return ac; } -/* Create a search request context. */ -struct map_search_context *map_init_search_context(struct map_context *ac, struct ldb_reply *ares) -{ - struct map_search_context *sc; - - sc = talloc_zero(ac, struct map_search_context); - if (sc == NULL) { - map_oom(ac->module); - return NULL; - } - - sc->ac = ac; - sc->local_res = NULL; - sc->remote_res = ares; - - return sc; -} - -/* Create a request context and handle. */ -struct ldb_handle *map_init_handle(struct ldb_request *req, struct ldb_module *module) -{ - struct map_context *ac; - struct ldb_handle *h; - - h = talloc_zero(req, struct ldb_handle); - if (h == NULL) { - map_oom(module); - return NULL; - } - - h->module = module; - - ac = map_init_context(h, req); - if (ac == NULL) { - talloc_free(h); - return NULL; - } - - h->private_data = (void *)ac; - - h->state = LDB_ASYNC_INIT; - h->status = LDB_SUCCESS; - - return h; -} - - /* Dealing with DNs for different partitions * ========================================= */ @@ -888,113 +843,52 @@ static int map_objectclass_convert_operator(struct ldb_module *module, void *mem /* Auxiliary request construction * ============================== */ -/* 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; - - if (context == NULL || ares == NULL) { - ldb_set_errstring(ldb, talloc_asprintf(ldb, "NULL Context or Result in callback")); - return LDB_ERR_OPERATIONS_ERROR; - } - - ac = talloc_get_type(context, struct map_context); - - /* We are interested only in the single reply */ - if (ares->type != LDB_REPLY_ENTRY) { - talloc_free(ares); - return LDB_SUCCESS; - } - - /* 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; - } - - /* Store local DN */ - ac->local_dn = ares->message->dn; - - return LDB_SUCCESS; -} - /* 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_search_callback callback) +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; - - req = talloc_zero(ac, struct ldb_request); - if (req == NULL) { - map_oom(ac->module); - return NULL; - } - - req->operation = LDB_SEARCH; - req->op.search.base = dn; - req->op.search.scope = LDB_SCOPE_BASE; - req->op.search.attrs = attrs; + int ret; if (tree) { - req->op.search.tree = tree; + search_tree = tree; } else { - req->op.search.tree = ldb_parse_tree(req, NULL); - if (req->op.search.tree == NULL) { - talloc_free(req); + search_tree = ldb_parse_tree(ac, NULL); + if (search_tree == NULL) { return NULL; } } - req->controls = NULL; - req->context = context; - req->callback = callback; - ldb_set_timeout_from_prev_req(ac->module->ldb, ac->orig_req, req); - - return req; -} - -/* Build a request to search the local record by its DN. */ -struct ldb_request *map_search_self_req(struct map_context *ac, 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); + 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; } - tree->operation = LDB_OP_PRESENT; - tree->u.present.attr = talloc_strdup(tree, IS_MAPPED); - - return map_search_base_req(ac, dn, attrs, tree, ac, map_search_self_callback); + 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) +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; - - /* Prepare request */ - req = talloc_zero(ac, struct ldb_request); - if (req == NULL) { - map_oom(ac->module); - return NULL; - } + int ret; /* Prepare message */ - msg = ldb_msg_new(req); + msg = ldb_msg_new(ac); if (msg == NULL) { map_oom(ac->module); - goto failed; + return NULL; } /* Update local 'IS_MAPPED' to the new remote DN */ @@ -1010,193 +904,22 @@ struct ldb_request *map_build_fixup_req(struct map_context *ac, struct ldb_dn *o goto failed; } - req->operation = LDB_MODIFY; - req->op.mod.message = msg; - req->controls = NULL; - req->handle = NULL; - req->context = NULL; - req->callback = NULL; + /* 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(req); + talloc_free(msg); return NULL; } - -/* Asynchronous call structure - * =========================== */ - -/* Figure out which request is currently pending. */ -static struct ldb_request *map_get_req(struct map_context *ac) -{ - 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; - } - - return NULL; /* unreachable; silences a warning */ -} - -typedef int (*map_next_function)(struct ldb_handle *handle); - -/* 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 MAP_ADD_LOCAL: - return map_add_do_remote; - case MAP_ADD_REMOTE: - return NULL; - - 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; - - 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; - } - - return NULL; /* unreachable; silences a warning */ -} - -/* Wait for the current pending request to finish and continue with the next. */ -static int map_wait_next(struct ldb_handle *handle) -{ - struct map_context *ac; - struct ldb_request *req; - map_next_function next; - int ret; - - if (handle == NULL || handle->private_data == NULL) { - return LDB_ERR_OPERATIONS_ERROR; - } - - if (handle->state == LDB_ASYNC_DONE) { - return handle->status; - } - - handle->state = LDB_ASYNC_PENDING; - handle->status = LDB_SUCCESS; - - ac = talloc_get_type(handle->private_data, struct map_context); - - 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); - - 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 { - - req = map_get_req(ac); - - ret = ldb_wait(req->handle, LDB_WAIT_NONE); - - 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; - } - - next = map_get_next(ac); - if (next) { - return next(handle); - } - } - - ret = LDB_SUCCESS; - -done: - handle->state = LDB_ASYNC_DONE; - return ret; -} - -/* Wait for all current pending requests to finish. */ -static int map_wait_all(struct ldb_handle *handle) -{ - int ret; - - while (handle->state != LDB_ASYNC_DONE) { - ret = map_wait_next(handle); - if (ret != LDB_SUCCESS) { - return ret; - } - } - - return handle->status; -} - -/* Wait for pending requests to finish. */ -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); - } -} - - /* Module initialization * ===================== */ @@ -1256,7 +979,7 @@ static int map_init_dns(struct ldb_module *module, struct ldb_map_context *data, return LDB_ERR_OPERATIONS_ERROR; } - ret = ldb_search(module->ldb, dn, LDB_SCOPE_BASE, NULL, attrs, &res); + ret = ldb_search(module->ldb, data, &res, dn, LDB_SCOPE_BASE, attrs, NULL); talloc_free(dn); if (ret != LDB_SUCCESS) { return ret; diff --git a/source4/lib/ldb/ldb_map/ldb_map.h b/source4/lib/ldb/ldb_map/ldb_map.h index e40bb9cd7e..7f92c15b98 100644 --- a/source4/lib/ldb/ldb_map/ldb_map.h +++ b/source4/lib/ldb/ldb_map/ldb_map.h @@ -160,14 +160,12 @@ int map_search(struct ldb_module *module, struct ldb_request *req); int map_rename(struct ldb_module *module, struct ldb_request *req); int map_delete(struct ldb_module *module, struct ldb_request *req); int map_modify(struct ldb_module *module, struct ldb_request *req); -int map_wait(struct ldb_handle *handle, enum ldb_wait_type type); #define LDB_MAP_OPS \ .add = map_add, \ .modify = map_modify, \ .del = map_delete, \ .rename = map_rename, \ - .search = map_search, \ - .wait = map_wait, + .search = map_search, #endif /* __LDB_MAP_H__ */ diff --git a/source4/lib/ldb/ldb_map/ldb_map_inbound.c b/source4/lib/ldb/ldb_map/ldb_map_inbound.c index 7fc3ac4ed5..96605f23eb 100644 --- a/source4/lib/ldb/ldb_map/ldb_map_inbound.c +++ b/source4/lib/ldb/ldb_map/ldb_map_inbound.c @@ -3,6 +3,7 @@ Copyright (C) Jelmer Vernooij 2005 Copyright (C) Martin Kuehl <mkhl@samba.org> 2006 + Copyright (C) Simo Sorce <idra@samba.org> 2008 ** NOTE! The following LGPL license applies to the ldb ** library. This does NOT imply that all of Samba is released @@ -178,51 +179,181 @@ static int ldb_msg_partition(struct ldb_module *module, struct ldb_message *loca } -/* Inbound requests: add, modify, rename, delete - * ============================================= */ +static int map_add_do_local(struct map_context *ac); +static int map_modify_do_local(struct map_context *ac); +static int map_delete_do_local(struct map_context *ac); +static int map_rename_do_local(struct map_context *ac); +static int map_rename_do_fixup(struct map_context *ac); +static int map_rename_local_callback(struct ldb_request *req, + struct ldb_reply *ares); -/* Add the remote record. */ -int map_add_do_remote(struct ldb_handle *handle) + +/***************************************************************************** + * COMMON INBOUND functions +*****************************************************************************/ + +/* Store the DN of a single search result in context. */ +static int map_search_self_callback(struct ldb_request *req, struct ldb_reply *ares) { struct map_context *ac; + int ret; - ac = talloc_get_type(handle->private_data, struct map_context); + ac = talloc_get_type(req->context, struct map_context); - ldb_set_timeout_from_prev_req(ac->module->ldb, ac->orig_req, ac->remote_req); + 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); + } - ac->step = MAP_ADD_REMOTE; + /* We are interested only in the single reply */ + switch(ares->type) { + case LDB_REPLY_ENTRY: + /* We have already found a remote DN */ + if (ac->local_dn) { + ldb_set_errstring(ac->module->ldb, + "Too many results!"); + return ldb_module_done(ac->req, NULL, NULL, + LDB_ERR_OPERATIONS_ERROR); + } - handle->state = LDB_ASYNC_INIT; - handle->status = LDB_SUCCESS; + /* Store local DN */ + ac->local_dn = talloc_steal(ac, ares->message->dn); + break; - return ldb_next_remote_request(ac->module, ac->remote_req); + case LDB_REPLY_DONE: + + switch (ac->req->operation) { + case LDB_MODIFY: + ret = map_modify_do_local(ac); + break; + case LDB_DELETE: + ret = map_delete_do_local(ac); + break; + case LDB_RENAME: + ret = map_rename_do_local(ac); + break; + default: + /* if we get here we have definitely a problem */ + ret = LDB_ERR_OPERATIONS_ERROR; + } + if (ret != LDB_SUCCESS) { + return ldb_module_done(ac->req, NULL, NULL, + LDB_ERR_OPERATIONS_ERROR); + } + + default: + /* ignore referrals */ + break; + } + + talloc_free(ares); + return LDB_SUCCESS; } -/* Add the local record. */ -int map_add_do_local(struct ldb_handle *handle) +/* Build a request to search the local record by its DN. */ +static int map_search_self_req(struct ldb_request **req, + struct map_context *ac, + 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 */ + tree = ldb_parse_tree(ac, "(" IS_MAPPED "=*)"); + if (tree == NULL) { + map_oom(ac->module); + return LDB_ERR_OPERATIONS_ERROR; + } + + *req = map_search_base_req(ac, dn, attrs, tree, + ac, map_search_self_callback); + if (*req == NULL) { + return LDB_ERR_OPERATIONS_ERROR; + } + + return LDB_SUCCESS; +} + +static int map_op_local_callback(struct ldb_request *req, + struct ldb_reply *ares) { struct map_context *ac; + int ret; - ac = talloc_get_type(handle->private_data, struct map_context); + ac = talloc_get_type(req->context, struct map_context); - ldb_set_timeout_from_prev_req(ac->module->ldb, ac->orig_req, ac->local_req); + 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); + } - ac->step = MAP_ADD_LOCAL; + if (ares->type != LDB_REPLY_DONE) { + ldb_set_errstring(req->handle->ldb, "Invalid reply type!"); + return ldb_module_done(ac->req, NULL, NULL, + LDB_ERR_OPERATIONS_ERROR); + } - handle->state = LDB_ASYNC_INIT; - handle->status = LDB_SUCCESS; + /* Do the remote request. */ + ret = ldb_next_remote_request(ac->module, ac->remote_req); + if (ret != LDB_SUCCESS) { + return ldb_module_done(ac->req, NULL, NULL, + LDB_ERR_OPERATIONS_ERROR); + } - return ldb_next_request(ac->module, ac->local_req); + return LDB_SUCCESS; } +static int map_op_remote_callback(struct ldb_request *req, + struct ldb_reply *ares) +{ + struct map_context *ac; + + ac = talloc_get_type(req->context, struct map_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 (ares->type != LDB_REPLY_DONE) { + ldb_set_errstring(req->handle->ldb, "Invalid reply type!"); + return ldb_module_done(ac->req, NULL, NULL, + LDB_ERR_OPERATIONS_ERROR); + } + + return ldb_module_done(ac->req, ares->controls, + ares->response, ares->error); +} + + +/***************************************************************************** + * ADD operations +*****************************************************************************/ + + /* 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; + struct ldb_message *remote_msg; const char *dn; + int ret; /* Do not manipulate our control entries */ if (ldb_dn_is_special(msg->dn)) { @@ -240,141 +371,88 @@ int map_add(struct ldb_module *module, struct ldb_request *req) } /* Prepare context and handle */ - h = map_init_handle(req, module); - if (h == NULL) { + ac = map_init_context(module, req); + if (ac == 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; + ac->local_msg = ldb_msg_new(ac); + if (ac->local_msg == NULL) { + map_oom(module); + return LDB_ERR_OPERATIONS_ERROR; } - local->dn = msg->dn; + ac->local_msg->dn = msg->dn; /* Prepare the remote message */ - remote = ldb_msg_new(ac->remote_req); - if (remote == NULL) { - goto oom; + remote_msg = ldb_msg_new(ac); + if (remote_msg == NULL) { + map_oom(module); + return LDB_ERR_OPERATIONS_ERROR; } - remote->dn = ldb_dn_map_local(ac->module, remote, msg->dn); + remote_msg->dn = ldb_dn_map_local(ac->module, remote_msg, 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; + ldb_msg_partition(module, ac->local_msg, remote_msg, msg); + + /* Prepare the remote operation */ + ret = ldb_build_add_req(&ac->remote_req, module->ldb, + ac, remote_msg, + req->controls, + ac, map_op_remote_callback, + req); + if (ret != LDB_SUCCESS) { + return LDB_ERR_OPERATIONS_ERROR; + } - if ((local->num_elements == 0) || (!map_check_local_db(ac->module))) { + if ((ac->local_msg->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); + return ldb_next_remote_request(ac->module, ac->remote_req); } /* Store remote DN in 'IS_MAPPED' */ /* TODO: use GUIDs here instead */ - dn = ldb_dn_alloc_linearized(local, remote->dn); - if (ldb_msg_add_string(local, IS_MAPPED, dn) != 0) { - goto failed; + dn = ldb_dn_alloc_linearized(ac->local_msg, remote_msg->dn); + if (ldb_msg_add_string(ac->local_msg, IS_MAPPED, dn) != 0) { + return LDB_ERR_OPERATIONS_ERROR; } - 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); + return map_add_do_local(ac); } -/* Modify the local record. */ -int map_modify_do_local(struct ldb_handle *handle) +/* Add the local record. */ +static int map_add_do_local(struct map_context *ac) { - 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 */ - if (ldb_msg_add_empty(msg, IS_MAPPED, LDB_FLAG_MOD_ADD, NULL) != 0) { - return LDB_ERR_OPERATIONS_ERROR; - } - dn = ldb_dn_alloc_linearized(msg, ac->remote_req->op.mod.message->dn); - if (ldb_msg_add_string(msg, IS_MAPPED, dn) != 0) { - return LDB_ERR_OPERATIONS_ERROR; - } + struct ldb_request *local_req; + int ret; - /* 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. */ + /* Prepare the local operation */ + ret = ldb_build_add_req(&local_req, ac->module->ldb, ac, + ac->local_msg, + ac->req->controls, + ac, + map_op_local_callback, + ac->req); + if (ret != LDB_SUCCESS) { + return LDB_ERR_OPERATIONS_ERROR; } - - 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); + return ldb_next_request(ac->module, local_req); } +/***************************************************************************** + * MODIFY operations +*****************************************************************************/ + /* 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 ldb_request *search_req; + struct ldb_message *remote_msg; struct map_context *ac; - struct ldb_message *local, *remote; + int ret; /* Do not manipulate our control entries */ if (ldb_dn_is_special(msg->dn)) { @@ -395,257 +473,200 @@ int map_modify(struct ldb_module *module, struct ldb_request *req) } /* Prepare context and handle */ - h = map_init_handle(req, module); - if (h == NULL) { + ac = map_init_context(module, req); + if (ac == 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; + ac->local_msg = ldb_msg_new(ac); + if (ac->local_msg == NULL) { + map_oom(module); + return LDB_ERR_OPERATIONS_ERROR; } - local->dn = msg->dn; + ac->local_msg->dn = msg->dn; /* Prepare the remote message */ - remote = ldb_msg_new(ac->remote_req); - if (remote == NULL) { - goto oom; + remote_msg = ldb_msg_new(ac->remote_req); + if (remote_msg == NULL) { + map_oom(module); + return LDB_ERR_OPERATIONS_ERROR; } - remote->dn = ldb_dn_map_local(ac->module, remote, msg->dn); + remote_msg->dn = ldb_dn_map_local(ac->module, remote_msg, 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; + ldb_msg_partition(module, ac->local_msg, remote_msg, msg); + + /* Prepare the remote operation */ + ret = ldb_build_mod_req(&ac->remote_req, module->ldb, + ac, remote_msg, + req->controls, + ac, map_op_remote_callback, + req); + if (ret != LDB_SUCCESS) { + return LDB_ERR_OPERATIONS_ERROR; + } - if ((local->num_elements == 0) || (!map_check_local_db(ac->module))) { + if ((ac->local_msg->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); + return ldb_next_remote_request(ac->module, ac->remote_req); } /* prepare the search operation */ - ac->search_req = map_search_self_req(ac, msg->dn); - if (ac->search_req == NULL) { - goto failed; + ret = map_search_self_req(&search_req, ac, msg->dn); + if (ret != LDB_SUCCESS) { + return LDB_ERR_OPERATIONS_ERROR; } - 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); + return ldb_next_request(module, search_req); } -/* Delete the local record. */ -int map_delete_do_local(struct ldb_handle *handle) +/* Modify the local record. */ +static int map_modify_do_local(struct map_context *ac) { - struct map_context *ac; - - ac = talloc_get_type(handle->private_data, struct map_context); + struct ldb_request *local_req; + char *dn; + int ret; - /* 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; + /* No local record present, add it instead */ + /* Add local 'IS_MAPPED' */ + /* TODO: use GUIDs here instead */ + if (ldb_msg_add_empty(ac->local_msg, IS_MAPPED, + LDB_FLAG_MOD_ADD, NULL) != 0) { + return LDB_ERR_OPERATIONS_ERROR; + } + dn = ldb_dn_alloc_linearized(ac->local_msg, + ac->remote_req->op.mod.message->dn); + if (ldb_msg_add_string(ac->local_msg, IS_MAPPED, dn) != 0) { + return LDB_ERR_OPERATIONS_ERROR; + } - handle->state = LDB_ASYNC_INIT; - handle->status = LDB_SUCCESS; + /* Prepare the local operation */ + ret = ldb_build_add_req(&local_req, ac->module->ldb, ac, + ac->local_msg, + ac->req->controls, + ac, + map_op_local_callback, + ac->req); + if (ret != LDB_SUCCESS) { + return LDB_ERR_OPERATIONS_ERROR; + } + } else { + /* Prepare the local operation */ + ret = ldb_build_mod_req(&local_req, ac->module->ldb, ac, + ac->local_msg, + ac->req->controls, + ac, + map_op_local_callback, + ac->req); + if (ret != LDB_SUCCESS) { + return LDB_ERR_OPERATIONS_ERROR; + } + } - return ldb_next_request(ac->module, ac->local_req); + return ldb_next_request(ac->module, local_req); } +/***************************************************************************** + * DELETE operations +*****************************************************************************/ + /* Delete a record. */ int map_delete(struct ldb_module *module, struct ldb_request *req) { - struct ldb_handle *h; + struct ldb_request *search_req; struct map_context *ac; + int ret; /* 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 */ + /* 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) { + ac = map_init_context(module, req); + if (ac == 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; + ret = ldb_build_del_req(&ac->remote_req, module->ldb, ac, + ldb_dn_map_local(module, ac, req->op.del.dn), + req->controls, + ac, + map_op_remote_callback, + req); + if (ret != LDB_SUCCESS) { + return LDB_ERR_OPERATIONS_ERROR; } - *(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); + /* Do the remote request. */ + return ldb_next_remote_request(ac->module, ac->remote_req); } - 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; + ret = map_search_self_req(&search_req, ac, req->op.del.dn); + if (ret != LDB_SUCCESS) { + map_oom(module); + return LDB_ERR_OPERATIONS_ERROR; } - 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; + return ldb_next_request(module, search_req); } -/* 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) +/* Delete the local record. */ +static int map_delete_do_local(struct map_context *ac) { - struct map_context *ac; - - ac = talloc_get_type(handle->private_data, struct map_context); + struct ldb_request *local_req; + int ret; /* No local record, continue remotely */ if (ac->local_dn == NULL) { - return map_rename_do_remote(handle); + /* Do the remote request. */ + return ldb_next_remote_request(ac->module, ac->remote_req); } - 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); + /* Prepare the local operation */ + ret = ldb_build_del_req(&local_req, ac->module->ldb, ac, + ac->req->op.del.dn, + ac->req->controls, + ac, + map_op_local_callback, + ac->req); + if (ret != LDB_SUCCESS) { + return LDB_ERR_OPERATIONS_ERROR; + } + return ldb_next_request(ac->module, local_req); } +/***************************************************************************** + * RENAME operations +*****************************************************************************/ + /* Rename a record. */ int map_rename(struct ldb_module *module, struct ldb_request *req) { - struct ldb_handle *h; + struct ldb_request *search_req; struct map_context *ac; + int ret; /* 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 */ + /* 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); @@ -658,66 +679,113 @@ int map_rename(struct ldb_module *module, struct ldb_request *req) } /* Prepare context and handle */ - h = map_init_handle(req, module); - if (h == NULL) { + ac = map_init_context(module, req); + if (ac == 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; + /* Prepare the remote operation */ + ret = ldb_build_rename_req(&ac->remote_req, module->ldb, ac, + ldb_dn_map_local(module, ac, req->op.rename.olddn), + ldb_dn_map_local(module, ac, req->op.rename.newdn), + req->controls, + ac, map_op_remote_callback, + req); + if (ret != LDB_SUCCESS) { + return LDB_ERR_OPERATIONS_ERROR; } - *(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; + /* No local db, just run the remote request */ + if (!map_check_local_db(ac->module)) { + /* Do the remote request. */ + return ldb_next_remote_request(ac->module, ac->remote_req); + } - ac->local_req->context = NULL; - ac->local_req->callback = NULL; + /* Prepare the search operation */ + ret = map_search_self_req(&search_req, ac, req->op.rename.olddn); + if (ret != LDB_SUCCESS) { + map_oom(module); + return LDB_ERR_OPERATIONS_ERROR; + } - /* Prepare the remote operation */ - ac->remote_req = talloc(ac, struct ldb_request); - if (ac->remote_req == NULL) { - goto oom; + return ldb_next_request(module, search_req); +} + +/* Rename the local record. */ +static int map_rename_do_local(struct map_context *ac) +{ + struct ldb_request *local_req; + int ret; + + /* No local record, continue remotely */ + if (ac->local_dn == NULL) { + /* Do the remote request. */ + return ldb_next_remote_request(ac->module, ac->remote_req); } - *(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); + /* Prepare the local operation */ + ret = ldb_build_rename_req(&local_req, ac->module->ldb, ac, + ac->req->op.rename.olddn, + ac->req->op.rename.newdn, + ac->req->controls, + ac, + map_rename_local_callback, + ac->req); + if (ret != LDB_SUCCESS) { + return LDB_ERR_OPERATIONS_ERROR; + } - ac->remote_req->context = NULL; - ac->remote_req->callback = NULL; + return ldb_next_request(ac->module, local_req); +} - /* 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); +static int map_rename_local_callback(struct ldb_request *req, + struct ldb_reply *ares) +{ + struct map_context *ac; + int ret; + + ac = talloc_get_type(req->context, struct map_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); } - /* 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; + if (ares->type != LDB_REPLY_DONE) { + ldb_set_errstring(req->handle->ldb, "Invalid reply type!"); + return ldb_module_done(ac->req, NULL, NULL, + LDB_ERR_OPERATIONS_ERROR); } - /* Prepare the search operation */ - ac->search_req = map_search_self_req(ac, req->op.rename.olddn); - if (ac->search_req == NULL) { - goto failed; + /* proceed with next step */ + ret = map_rename_do_fixup(ac); + if (ret != LDB_SUCCESS) { + return ldb_module_done(ac->req, NULL, NULL, + LDB_ERR_OPERATIONS_ERROR); } - req->handle = h; /* return our own handle to deal with this call */ + return LDB_SUCCESS; +} - ac->step = MAP_SEARCH_SELF_RENAME; +/* Update the local 'IS_MAPPED' attribute. */ +static int map_rename_do_fixup(struct map_context *ac) +{ + struct ldb_request *local_req; - return ldb_next_request(module, ac->search_req); + /* Prepare the fixup operation */ + /* TODO: use GUIDs here instead -- or skip it when GUIDs are used. */ + local_req = map_build_fixup_req(ac, + ac->req->op.rename.newdn, + ac->remote_req->op.rename.newdn, + ac, + map_op_local_callback); + if (local_req == NULL) { + return LDB_ERR_OPERATIONS_ERROR; + } -oom: - map_oom(module); -failed: - talloc_free(h); - return LDB_ERR_OPERATIONS_ERROR; + return ldb_next_request(ac->module, local_req); } diff --git a/source4/lib/ldb/ldb_map/ldb_map_outbound.c b/source4/lib/ldb/ldb_map/ldb_map_outbound.c index fbc097f313..5f524a8be3 100644 --- a/source4/lib/ldb/ldb_map/ldb_map_outbound.c +++ b/source4/lib/ldb/ldb_map/ldb_map_outbound.c @@ -4,6 +4,7 @@ Copyright (C) Jelmer Vernooij 2005 Copyright (C) Martin Kuehl <mkhl@samba.org> 2006 Copyright (C) Andrew Bartlett <abartlet@samba.org> 2006 + Copyright (C) Simo Sorce <idra@samba.org> 2008 ** NOTE! The following LGPL license applies to the ldb ** library. This does NOT imply that all of Samba is released @@ -905,7 +906,11 @@ static int map_subtree_collect_remote(struct ldb_module *module, void *mem_ctx, /* 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) +static int ldb_parse_tree_partition(struct ldb_module *module, + void *mem_ctx, + struct ldb_parse_tree **local_tree, + struct ldb_parse_tree **remote_tree, + const struct ldb_parse_tree *tree) { int ret; @@ -918,13 +923,13 @@ static int ldb_parse_tree_partition(struct ldb_module *module, void *local_ctx, } /* Generate local tree */ - ret = map_subtree_select_local(module, local_ctx, local_tree, tree); + ret = map_subtree_select_local(module, mem_ctx, local_tree, tree); if (ret) { return ret; } /* Generate remote tree */ - ret = map_subtree_collect_remote(module, remote_ctx, remote_tree, tree); + ret = map_subtree_collect_remote(module, mem_ctx, remote_tree, tree); if (ret) { talloc_free(*local_tree); return ret; @@ -1008,24 +1013,46 @@ oom: /* 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) +static int map_remote_search_callback(struct ldb_request *req, + struct ldb_reply *ares); +static int map_local_merge_callback(struct ldb_request *req, + struct ldb_reply *ares); +static int map_search_local(struct map_context *ac); + +static int map_save_entry(struct map_context *ac, struct ldb_reply *ares) { - int i; + struct map_reply *mr; - /* No callback registered, stop */ - if (req->callback == NULL) { - return LDB_SUCCESS; + mr = talloc_zero(ac, struct map_reply); + if (mr == NULL) { + map_oom(ac->module); + return LDB_ERR_OPERATIONS_ERROR; } - - /* Only records need special treatment */ - if (ares->type != LDB_REPLY_ENTRY) { - return req->callback(ldb, req->context, ares); + mr->remote = talloc_steal(mr, ares); + if (ac->r_current) { + ac->r_current->next = mr; + } else { + /* first entry */ + ac->r_list = mr; } + ac->r_current = mr; + + return LDB_SUCCESS; +} + +/* Pass a merged search result up the callback chain. */ +int map_return_entry(struct map_context *ac, struct ldb_reply *ares) +{ + struct ldb_message_element *el; + const char * const *attrs; + int i; /* 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: " + if (!ldb_match_msg(ac->module->ldb, ares->message, + ac->req->op.search.tree, + ac->req->op.search.base, + ac->req->op.search.scope)) { + ldb_debug(ac->module->ldb, LDB_DEBUG_TRACE, "ldb_map: " "Skipping record '%s': " "doesn't match original search\n", ldb_dn_get_linearized(ares->message->dn)); @@ -1033,10 +1060,16 @@ int map_up_callback(struct ldb_context *ldb, const struct ldb_request *req, stru } /* 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; ) { - struct ldb_message_element *el = &ares->message->elements[i]; - if (!ldb_attr_in_list(req->op.search.attrs, el->name)) { + if (ac->req->op.search.attrs && + (! ldb_attr_in_list(ac->req->op.search.attrs, "*"))) { + + attrs = ac->req->op.search.attrs; + i = 0; + + while (i < ares->message->num_elements) { + + el = &ares->message->elements[i]; + if ( ! ldb_attr_in_list(attrs, el->name)) { ldb_msg_remove_element(ares->message, el); } else { i++; @@ -1044,129 +1077,16 @@ int map_up_callback(struct ldb_context *ldb, const struct ldb_request *req, stru } } - 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, 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); + return ldb_module_send_entry(ac->req, ares->message); } /* Search a record. */ int map_search(struct ldb_module *module, struct ldb_request *req) { - struct ldb_handle *h; + struct ldb_parse_tree *remote_tree; + struct ldb_parse_tree *local_tree; + struct ldb_request *remote_req; struct map_context *ac; - struct ldb_parse_tree *local_tree, *remote_tree; int ret; const char *wildcard[] = { "*", NULL }; @@ -1176,8 +1096,9 @@ int map_search(struct ldb_module *module, struct ldb_request *req) return ldb_next_request(module, req); /* Do not manipulate our control entries */ - if (ldb_dn_is_special(req->op.search.base)) + 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))) { @@ -1188,32 +1109,10 @@ int map_search(struct ldb_module *module, struct ldb_request *req) * 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); + ac = map_init_context(module, req); + if (ac == NULL) { 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; /* It is easier to deal with the two different ways of * expressing the wildcard in the same codepath */ @@ -1226,17 +1125,15 @@ int map_search(struct ldb_module *module, struct ldb_request *req) ret = map_attrs_collect_and_partition(module, ac, attrs, req->op.search.tree); if (ret) { - goto failed; + return LDB_ERR_OPERATIONS_ERROR; } - ac->search_reqs[0]->op.search.attrs = ac->remote_attrs; - /* Split local from remote tree */ - ret = ldb_parse_tree_partition(module, ac, ac->search_reqs[0], - &local_tree, &remote_tree, + ret = ldb_parse_tree_partition(module, ac, + &local_tree, &remote_tree, req->op.search.tree); if (ret) { - goto failed; + return LDB_ERR_OPERATIONS_ERROR; } if (((local_tree != NULL) && (remote_tree != NULL)) && @@ -1251,7 +1148,7 @@ int map_search(struct ldb_module *module, struct ldb_request *req) local_tree = talloc_zero(ac, struct ldb_parse_tree); if (local_tree == NULL) { map_oom(ac->module); - goto failed; + return LDB_ERR_OPERATIONS_ERROR; } local_tree->operation = LDB_OP_PRESENT; @@ -1259,31 +1156,209 @@ int map_search(struct ldb_module *module, struct ldb_request *req) } if (remote_tree == NULL) { /* Construct default remote parse tree */ - remote_tree = ldb_parse_tree(ac->search_reqs[0], NULL); + remote_tree = ldb_parse_tree(ac, NULL); if (remote_tree == NULL) { - goto failed; + return LDB_ERR_OPERATIONS_ERROR; } } 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]); + /* Prepare the remote operation */ + ret = ldb_build_search_req_ex(&remote_req, module->ldb, ac, + req->op.search.base, + req->op.search.scope, + remote_tree, + ac->remote_attrs, + req->controls, + ac, map_remote_search_callback, + req); + if (ret != LDB_SUCCESS) { + return LDB_ERR_OPERATIONS_ERROR; + } - h->state = LDB_ASYNC_INIT; - h->status = LDB_SUCCESS; + return ldb_next_remote_request(module, remote_req); +} + +/* Now, search the local part of a remote search result. */ +static int map_remote_search_callback(struct ldb_request *req, + struct ldb_reply *ares) +{ + struct map_context *ac; + int ret; - ac->step = MAP_SEARCH_REMOTE; + ac = talloc_get_type(req->context, struct map_context); - ret = ldb_next_remote_request(module, ac->search_reqs[0]); - if (ret == LDB_SUCCESS) { - req->handle = h; + 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); } - return ret; -oom: - map_oom(module); -failed: - talloc_free(h); - return LDB_ERR_OPERATIONS_ERROR; + switch (ares->type) { + case LDB_REPLY_REFERRAL: + + /* ignore referrals */ + talloc_free(ares); + return LDB_SUCCESS; + + case LDB_REPLY_ENTRY: + + /* Map result record into a local message */ + ret = map_reply_remote(ac, ares); + if (ret) { + talloc_free(ares); + return ldb_module_done(ac->req, NULL, NULL, + LDB_ERR_OPERATIONS_ERROR); + } + + /* if we have no local db, then we can just return the reply to + * the upper layer, otherwise we must save it and process it + * when all replies ahve been gathered */ + if ( ! map_check_local_db(ac->module)) { + ret = map_return_entry(ac, ares); + } else { + ret = map_save_entry(ac,ares); + } + + if (ret != LDB_SUCCESS) { + talloc_free(ares); + return ldb_module_done(ac->req, NULL, NULL, + LDB_ERR_OPERATIONS_ERROR); + } + break; + + case LDB_REPLY_DONE: + + if ( ! map_check_local_db(ac->module)) { + return ldb_module_done(ac->req, ares->controls, + ares->response, LDB_SUCCESS); + } + + talloc_free(ares); + + /* reset the pointer to the start of the list */ + ac->r_current = ac->r_list; + + /* no entry just return */ + if (ac->r_current == NULL) { + return ldb_module_done(ac->req, ares->controls, + ares->response, LDB_SUCCESS); + } + + ret = map_search_local(ac); + if (ret != LDB_SUCCESS) { + return ldb_module_done(ac->req, NULL, NULL, ret); + } + } + + return LDB_SUCCESS; +} + +static int map_search_local(struct map_context *ac) +{ + struct ldb_request *search_req; + + if (ac->r_current == NULL || ac->r_current->remote == NULL) { + return LDB_ERR_OPERATIONS_ERROR; + } + + /* Prepare local search request */ + /* TODO: use GUIDs here instead? */ + search_req = map_search_base_req(ac, + ac->r_current->remote->message->dn, + NULL, NULL, + ac, map_local_merge_callback); + if (search_req == NULL) { + return LDB_ERR_OPERATIONS_ERROR; + } + + return ldb_next_request(ac->module, search_req); +} + +/* Merge the remote and local parts of a search result. */ +int map_local_merge_callback(struct ldb_request *req, struct ldb_reply *ares) +{ + struct map_context *ac; + int ret; + + ac = talloc_get_type(req->context, struct map_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); + } + + switch (ares->type) { + case LDB_REPLY_ENTRY: + /* We have already found a local record */ + if (ac->r_current->local) { + talloc_free(ares); + ldb_set_errstring(ac->module->ldb, "ldb_map: Too many results!"); + return ldb_module_done(ac->req, NULL, NULL, + LDB_ERR_OPERATIONS_ERROR); + } + + /* Store local result */ + ac->r_current->local = talloc_steal(ac->r_current, ares); + + break; + + case LDB_REPLY_REFERRAL: + /* ignore referrals */ + talloc_free(ares); + break; + + case LDB_REPLY_DONE: + talloc_free(ares); + + /* No local record found, map and send remote record */ + if (ac->r_current->local != NULL) { + /* Merge remote into local message */ + ret = ldb_msg_merge_local(ac->module, + ac->r_current->local->message, + ac->r_current->remote->message); + if (ret == LDB_SUCCESS) { + ret = map_return_entry(ac, ac->r_current->local); + } + if (ret != LDB_SUCCESS) { + return ldb_module_done(ac->req, NULL, NULL, + LDB_ERR_OPERATIONS_ERROR); + } + } else { + ret = map_return_entry(ac, ac->r_current->remote); + if (ret != LDB_SUCCESS) { + return ldb_module_done(ac->req, + NULL, NULL, ret); + } + } + + if (ac->r_current->next != NULL) { + ac->r_current = ac->r_current->next; + if (ac->r_current->remote->type == LDB_REPLY_ENTRY) { + ret = map_search_local(ac); + if (ret != LDB_SUCCESS) { + return ldb_module_done(ac->req, + NULL, NULL, ret); + } + break; + } + } + + /* ok we are done with all search, finally it is time to + * finish operations for this module */ + return ldb_module_done(ac->req, + ac->r_current->remote->controls, + ac->r_current->remote->response, + ac->r_current->remote->error); + } + + return LDB_SUCCESS; } diff --git a/source4/lib/ldb/ldb_map/ldb_map_private.h b/source4/lib/ldb/ldb_map/ldb_map_private.h index 58a9f2704e..0543ba71b9 100644 --- a/source4/lib/ldb/ldb_map/ldb_map_private.h +++ b/source4/lib/ldb/ldb_map/ldb_map_private.h @@ -3,7 +3,7 @@ #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 *); +typedef int (*ldb_map_callback_t)(struct ldb_request *, struct ldb_reply *); /* The special DN from which the local and remote base DNs are fetched */ #define MAP_DN_NAME "@MAP" @@ -13,25 +13,17 @@ typedef int (*ldb_search_callback)(struct ldb_context *, void *, struct ldb_repl /* Private data structures * ======================= */ +struct map_reply { + struct map_reply *next; + struct ldb_reply *remote; + struct ldb_reply *local; +}; + /* 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; + struct ldb_request *req; struct ldb_dn *local_dn; const struct ldb_parse_tree *local_tree; @@ -39,32 +31,20 @@ struct map_context { const char * const *remote_attrs; const char * const *all_attrs; - struct ldb_request *orig_req; - struct ldb_request *local_req; + struct ldb_message *local_msg; 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; + struct map_reply *r_list; + struct map_reply *r_current; }; - /* 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); +struct map_context *map_init_context(struct ldb_module *module, + struct ldb_request *req); int ldb_next_remote_request(struct ldb_module *module, struct ldb_request *request); @@ -86,25 +66,25 @@ struct ldb_dn *ldb_dn_map_local(struct ldb_module *module, void *mem_ctx, struct struct ldb_dn *ldb_dn_map_remote(struct ldb_module *module, void *mem_ctx, struct ldb_dn *dn); struct ldb_dn *ldb_dn_map_rebase_remote(struct ldb_module *module, void *mem_ctx, struct ldb_dn *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_search_callback callback); -struct ldb_request *map_search_self_req(struct map_context *ac, struct ldb_dn *dn); -struct ldb_request *map_build_fixup_req(struct map_context *ac, struct ldb_dn *olddn, struct ldb_dn *newdn); - -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); - -/* 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_modify_do_remote(struct ldb_handle *handle); -int map_modify_do_local(struct ldb_handle *handle); - -int map_delete_do_remote(struct ldb_handle *handle); -int map_delete_do_local(struct ldb_handle *handle); - -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); +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); +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); +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); +int map_return_fatal_error(struct ldb_request *req, + struct ldb_reply *ares); +int map_return_normal_error(struct ldb_request *req, + struct ldb_reply *ares, + int error); + +int map_return_entry(struct map_context *ac, struct ldb_reply *ares); |