diff options
author | Jelmer Vernooij <jelmer@samba.org> | 2008-10-11 14:44:10 +0200 |
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committer | Jelmer Vernooij <jelmer@samba.org> | 2008-10-11 14:44:10 +0200 |
commit | 6a78e56277799672b7ac187c57e546836e136f79 (patch) | |
tree | 87f0336cb1908d01690b74c56a44f4713559b5bc /source4/lib/ldb/modules/sort.c | |
parent | ddbddbd80c80b872cdd36a01f9a3a6bc2eca1b1f (diff) | |
parent | f0a27064869871806343648de3b5a0667118872f (diff) | |
download | samba-6a78e56277799672b7ac187c57e546836e136f79.tar.gz samba-6a78e56277799672b7ac187c57e546836e136f79.tar.bz2 samba-6a78e56277799672b7ac187c57e546836e136f79.zip |
Merge branch 'master' of ssh://git.samba.org/data/git/samba into arc4
Diffstat (limited to 'source4/lib/ldb/modules/sort.c')
-rw-r--r-- | source4/lib/ldb/modules/sort.c | 369 |
1 files changed, 123 insertions, 246 deletions
diff --git a/source4/lib/ldb/modules/sort.c b/source4/lib/ldb/modules/sort.c index 746befa559..64d60f370c 100644 --- a/source4/lib/ldb/modules/sort.c +++ b/source4/lib/ldb/modules/sort.c @@ -1,7 +1,7 @@ /* ldb database library - Copyright (C) Simo Sorce 2005 + Copyright (C) Simo Sorce 2005-2008 ** NOTE! The following LGPL license applies to the ldb ** library. This does NOT imply that all of Samba is released @@ -43,8 +43,6 @@ struct opaque { struct sort_context { struct ldb_module *module; - void *up_context; - int (*up_callback)(struct ldb_context *, void *, struct ldb_reply *); char *attributeName; char *orderingRule; @@ -53,7 +51,6 @@ struct sort_context { struct ldb_request *req; struct ldb_message **msgs; char **referrals; - struct ldb_control **controls; int num_msgs; int num_refs; @@ -61,40 +58,6 @@ struct sort_context { int sort_result; }; -static struct ldb_handle *init_handle(void *mem_ctx, struct ldb_module *module, - void *context, - int (*callback)(struct ldb_context *, void *, struct ldb_reply *)) -{ - struct sort_context *ac; - struct ldb_handle *h; - - h = talloc_zero(mem_ctx, struct ldb_handle); - if (h == NULL) { - ldb_set_errstring(module->ldb, "Out of Memory"); - return NULL; - } - - h->module = module; - - ac = talloc_zero(h, struct sort_context); - if (ac == NULL) { - ldb_set_errstring(module->ldb, "Out of Memory"); - talloc_free(h); - return NULL; - } - - h->private_data = (void *)ac; - - h->state = LDB_ASYNC_INIT; - h->status = LDB_SUCCESS; - - ac->module = module; - ac->up_context = context; - ac->up_callback = callback; - - return h; -} - static int build_response(void *mem_ctx, struct ldb_control ***ctrls, int result, const char *desc) { struct ldb_control **controls; @@ -142,7 +105,7 @@ static int sort_compare(struct ldb_message **msg1, struct ldb_message **msg2, vo struct sort_context *ac = talloc_get_type(opaque, struct sort_context); struct ldb_message_element *el1, *el2; - if (ac->sort_result != 0) { + if (!ac || ac->sort_result != 0) { /* an error occurred previously, * let's exit the sorting by returning always 0 */ return 0; @@ -154,7 +117,7 @@ static int sort_compare(struct ldb_message **msg1, struct ldb_message **msg2, vo if (!el1 || !el2) { /* the attribute was not found return and * set an error */ - ac->sort_result = 53; + ac->sort_result = LDB_ERR_UNWILLING_TO_PERFORM; return 0; } @@ -164,51 +127,111 @@ static int sort_compare(struct ldb_message **msg1, struct ldb_message **msg2, vo return ac->a->syntax->comparison_fn(ac->module->ldb, ac, &el1->values[0], &el2->values[0]); } -static int server_sort_search_callback(struct ldb_context *ldb, void *context, struct ldb_reply *ares) +static int server_sort_results(struct sort_context *ac) { - struct sort_context *ac = NULL; - - if (!context || !ares) { - ldb_set_errstring(ldb, "NULL Context or Result in callback"); - goto error; - } + struct ldb_reply *ares; + int i, ret; + + ac->a = ldb_schema_attribute_by_name(ac->module->ldb, ac->attributeName); + ac->sort_result = 0; + + ldb_qsort(ac->msgs, ac->num_msgs, + sizeof(struct ldb_message *), + ac, (ldb_qsort_cmp_fn_t)sort_compare); + + if (ac->sort_result != LDB_SUCCESS) { + return ac->sort_result; + } + + for (i = 0; i < ac->num_msgs; i++) { + ares = talloc_zero(ac, struct ldb_reply); + if (!ares) { + return LDB_ERR_OPERATIONS_ERROR; + } + + ares->type = LDB_REPLY_ENTRY; + ares->message = talloc_move(ares, &ac->msgs[i]); + + ret = ldb_module_send_entry(ac->req, ares->message); + if (ret != LDB_SUCCESS) { + return ret; + } + } + + for (i = 0; i < ac->num_refs; i++) { + ares = talloc_zero(ac, struct ldb_reply); + if (!ares) { + return LDB_ERR_OPERATIONS_ERROR; + } + + ares->type = LDB_REPLY_REFERRAL; + ares->referral = talloc_move(ares, &ac->referrals[i]); + + ret = ldb_module_send_referral(ac->req, ares->referral); + if (ret != LDB_SUCCESS) { + return ret; + } + } + + return LDB_SUCCESS; +} + +static int server_sort_search_callback(struct ldb_request *req, struct ldb_reply *ares) +{ + struct sort_context *ac; + int ret; - ac = talloc_get_type(context, struct sort_context); + ac = talloc_get_type(req->context, struct sort_context); - if (ares->type == LDB_REPLY_ENTRY) { + 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: ac->msgs = talloc_realloc(ac, ac->msgs, struct ldb_message *, ac->num_msgs + 2); if (! ac->msgs) { - goto error; + talloc_free(ares); + ldb_oom(ac->module->ldb); + return ldb_module_done(ac->req, NULL, NULL, + LDB_ERR_OPERATIONS_ERROR); } - ac->msgs[ac->num_msgs + 1] = NULL; - - ac->msgs[ac->num_msgs] = talloc_move(ac->msgs, &ares->message); + ac->msgs[ac->num_msgs] = talloc_steal(ac->msgs, ares->message); ac->num_msgs++; - } + ac->msgs[ac->num_msgs] = NULL; - if (ares->type == LDB_REPLY_REFERRAL) { + break; + + case LDB_REPLY_REFERRAL: ac->referrals = talloc_realloc(ac, ac->referrals, char *, ac->num_refs + 2); if (! ac->referrals) { - goto error; + talloc_free(ares); + ldb_oom(ac->module->ldb); + return ldb_module_done(ac->req, NULL, NULL, + LDB_ERR_OPERATIONS_ERROR); } - ac->referrals[ac->num_refs + 1] = NULL; - ac->referrals[ac->num_refs] = talloc_move(ac->referrals, &ares->referral); - + ac->referrals[ac->num_refs] = talloc_steal(ac->referrals, ares->referral); ac->num_refs++; - } + ac->referrals[ac->num_refs] = NULL; - if (ares->type == LDB_REPLY_DONE) { - ac->controls = talloc_move(ac, &ares->controls); + break; + + case LDB_REPLY_DONE: + + ret = server_sort_results(ac); + return ldb_module_done(ac->req, ares->controls, + ares->response, ret); } talloc_free(ares); return LDB_SUCCESS; - -error: - talloc_free(ares); - return LDB_ERR_OPERATIONS_ERROR; } static int server_sort_search(struct ldb_module *module, struct ldb_request *req) @@ -216,8 +239,9 @@ static int server_sort_search(struct ldb_module *module, struct ldb_request *req struct ldb_control *control; struct ldb_server_sort_control **sort_ctrls; struct ldb_control **saved_controls; + struct ldb_control **controls; + struct ldb_request *down_req; struct sort_context *ac; - struct ldb_handle *h; int ret; /* check if there's a paged request control */ @@ -227,19 +251,14 @@ static int server_sort_search(struct ldb_module *module, struct ldb_request *req return ldb_next_request(module, req); } - req->handle = NULL; - - if (!req->callback || !req->context) { - ldb_set_errstring(module->ldb, - "Async interface called with NULL callback function or NULL context"); - return LDB_ERR_OPERATIONS_ERROR; - } - - h = init_handle(req, module, req->context, req->callback); - if (!h) { + ac = talloc_zero(req, struct sort_context); + if (ac == NULL) { + ldb_oom(module->ldb); return LDB_ERR_OPERATIONS_ERROR; } - ac = talloc_get_type(h->private_data, struct sort_context); + + ac->module = module; + ac->req = req; sort_ctrls = talloc_get_type(control->data, struct ldb_server_sort_control *); if (!sort_ctrls) { @@ -251,26 +270,20 @@ static int server_sort_search(struct ldb_module *module, struct ldb_request *req if (sort_ctrls[1] != NULL) { if (control->critical) { - struct ldb_reply *ares; - - ares = talloc_zero(req, struct ldb_reply); - if (!ares) - return LDB_ERR_OPERATIONS_ERROR; - /* 53 = unwilling to perform */ - ares->type = LDB_REPLY_DONE; - if ((ret = build_response(ares, &ares->controls, 53, "sort control is not complete yet")) != LDB_SUCCESS) { - return ret; + /* callback immediately */ + ret = build_response(req, &controls, + LDB_ERR_UNWILLING_TO_PERFORM, + "sort control is not complete yet"); + if (ret != LDB_SUCCESS) { + return ldb_module_done(req, NULL, NULL, + LDB_ERR_OPERATIONS_ERROR); } - h->status = LDB_ERR_UNSUPPORTED_CRITICAL_EXTENSION; - h->state = LDB_ASYNC_DONE; - ret = ac->up_callback(module->ldb, ac->up_context, ares); - - return ret; + return ldb_module_done(req, controls, NULL, ret); } else { /* just pass the call down and don't do any sorting */ - ldb_next_request(module, req); + return ldb_next_request(module, req); } } @@ -278,181 +291,45 @@ static int server_sort_search(struct ldb_module *module, struct ldb_request *req ac->orderingRule = sort_ctrls[0]->orderingRule; ac->reverse = sort_ctrls[0]->reverse; - ac->req = talloc(req, struct ldb_request); - if (!ac->req) + ret = ldb_build_search_req_ex(&down_req, module->ldb, ac, + req->op.search.base, + req->op.search.scope, + req->op.search.tree, + req->op.search.attrs, + req->controls, + ac, + server_sort_search_callback, + req); + if (ret != LDB_SUCCESS) { return LDB_ERR_OPERATIONS_ERROR; - - ac->req->operation = req->operation; - ac->req->op.search.base = req->op.search.base; - ac->req->op.search.scope = req->op.search.scope; - ac->req->op.search.tree = req->op.search.tree; - ac->req->op.search.attrs = req->op.search.attrs; - ac->req->controls = req->controls; + } /* save it locally and remove it from the list */ /* we do not need to replace them later as we * are keeping the original req intact */ - if (!save_controls(control, ac->req, &saved_controls)) { + if (!save_controls(control, down_req, &saved_controls)) { return LDB_ERR_OPERATIONS_ERROR; } - ac->req->context = ac; - ac->req->callback = server_sort_search_callback; - ldb_set_timeout_from_prev_req(module->ldb, req, ac->req); - - req->handle = h; - - return ldb_next_request(module, ac->req); -} - -static int server_sort_results(struct ldb_handle *handle) -{ - struct sort_context *ac; - struct ldb_reply *ares; - int i, ret; - - ac = talloc_get_type(handle->private_data, struct sort_context); - - ac->a = ldb_schema_attribute_by_name(ac->module->ldb, ac->attributeName); - ac->sort_result = 0; - - ldb_qsort(ac->msgs, ac->num_msgs, - sizeof(struct ldb_message *), - ac, (ldb_qsort_cmp_fn_t)sort_compare); - - for (i = 0; i < ac->num_msgs; i++) { - ares = talloc_zero(ac, struct ldb_reply); - if (!ares) { - handle->status = LDB_ERR_OPERATIONS_ERROR; - return handle->status; - } - - ares->type = LDB_REPLY_ENTRY; - ares->message = talloc_move(ares, &ac->msgs[i]); - - handle->status = ac->up_callback(ac->module->ldb, ac->up_context, ares); - if (handle->status != LDB_SUCCESS) { - return handle->status; - } - } - - for (i = 0; i < ac->num_refs; i++) { - ares = talloc_zero(ac, struct ldb_reply); - if (!ares) { - handle->status = LDB_ERR_OPERATIONS_ERROR; - return handle->status; - } - - ares->type = LDB_REPLY_REFERRAL; - ares->referral = talloc_move(ares, &ac->referrals[i]); - - handle->status = ac->up_callback(ac->module->ldb, ac->up_context, ares); - if (handle->status != LDB_SUCCESS) { - return handle->status; - } - } - - ares = talloc_zero(ac, struct ldb_reply); - if (!ares) { - handle->status = LDB_ERR_OPERATIONS_ERROR; - return handle->status; - } - - ares->type = LDB_REPLY_DONE; - ares->controls = talloc_move(ares, &ac->controls); - - handle->status = ac->up_callback(ac->module->ldb, ac->up_context, ares); - if (handle->status != LDB_SUCCESS) { - return handle->status; - } - - if ((ret = build_response(ac, &ac->controls, ac->sort_result, "sort control is not complete yet")) != LDB_SUCCESS) { - return ret; - } - - return LDB_SUCCESS; -} - -static int server_sort_wait_once(struct ldb_handle *handle) -{ - struct sort_context *ac; - int ret; - - if (!handle || !handle->private_data) { - return LDB_ERR_OPERATIONS_ERROR; - } - - ac = talloc_get_type(handle->private_data, struct sort_context); - - ret = ldb_wait(ac->req->handle, LDB_WAIT_NONE); - - if (ret != LDB_SUCCESS) { - handle->status = ret; - return ret; - } - - handle->state = ac->req->handle->state; - handle->status = ac->req->handle->status; - - if (handle->status != LDB_SUCCESS) { - return handle->status; - } - - if (handle->state == LDB_ASYNC_DONE) { - ret = server_sort_results(handle); - } - - return ret; -} - -static int server_sort_wait(struct ldb_handle *handle, enum ldb_wait_type type) -{ - int ret; - - if (!handle || !handle->private_data) { - return LDB_ERR_OPERATIONS_ERROR; - } - - if (type == LDB_WAIT_ALL) { - while (handle->state != LDB_ASYNC_DONE) { - ret = server_sort_wait_once(handle); - if (ret != LDB_SUCCESS) { - return ret; - } - } - - return handle->status; - } - - return server_sort_wait_once(handle); + return ldb_next_request(module, down_req); } static int server_sort_init(struct ldb_module *module) { - struct ldb_request *req; int ret; - req = talloc(module, struct ldb_request); - if (req == NULL) { - return LDB_ERR_OPERATIONS_ERROR; - } - - req->operation = LDB_REQ_REGISTER_CONTROL; - req->op.reg_control.oid = LDB_CONTROL_SERVER_SORT_OID; - req->controls = NULL; - - ret = ldb_request(module->ldb, req); + ret = ldb_mod_register_control(module, LDB_CONTROL_SERVER_SORT_OID); if (ret != LDB_SUCCESS) { - ldb_debug(module->ldb, LDB_DEBUG_WARNING, "server_sort: Unable to register control with rootdse!\n"); + ldb_debug(module->ldb, LDB_DEBUG_WARNING, + "server_sort:" + "Unable to register control with rootdse!\n"); } - talloc_free(req); return ldb_next_init(module); } const struct ldb_module_ops ldb_server_sort_module_ops = { .name = "server_sort", .search = server_sort_search, - .wait = server_sort_wait, .init_context = server_sort_init }; |