diff options
Diffstat (limited to 'server/nss/nsssrv_ldb.c')
| -rw-r--r-- | server/nss/nsssrv_ldb.c | 174 |
1 files changed, 174 insertions, 0 deletions
diff --git a/server/nss/nsssrv_ldb.c b/server/nss/nsssrv_ldb.c new file mode 100644 index 00000000..9ceb8f10 --- /dev/null +++ b/server/nss/nsssrv_ldb.c @@ -0,0 +1,174 @@ +/* + SSSD + + NSS Responder + + Copyright (C) Simo Sorce <ssorce@redhat.com> 2008 + + 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/>. +*/ + +#include "ldb.h" +#include "ldb_errors.h" +#include "util/util.h" +#include "nss/nsssrv.h" +#include "nss/nsssrv_ldb.h" +#include "nss/nss_ldb.h" + +struct nss_ldb_search_ctx { + nss_ldb_callback_t callback; + void *ptr; + struct ldb_result *res; +}; + +static int request_error(struct nss_ldb_search_ctx *sctx, int ldb_error) +{ + sctx->callback(sctx->ptr, ldb_error, sctx->res); + return ldb_error; +} + +static int request_done(struct nss_ldb_search_ctx *sctx) +{ + return sctx->callback(sctx->ptr, LDB_SUCCESS, sctx->res); +} + +static int getpwnam_callback(struct ldb_request *req, + struct ldb_reply *ares) +{ + struct nss_ldb_search_ctx *sctx; + struct ldb_result *res; + int n; + + sctx = talloc_get_type(req->context, struct nss_ldb_search_ctx); + res = sctx->res; + + if (!ares) { + return request_error(sctx, LDB_ERR_OPERATIONS_ERROR); + } + if (ares->error != LDB_SUCCESS) { + return request_error(sctx, ares->error); + } + + switch (ares->type) { + case LDB_REPLY_ENTRY: + sctx->res->msgs = talloc_realloc(sctx, res->msgs, + struct ldb_message *, + res->count + 2); + if (! res->msgs) { + return request_error(sctx, LDB_ERR_OPERATIONS_ERROR); + } + + res->msgs[res->count + 1] = NULL; + + res->msgs[res->count] = talloc_move(res->msgs, &ares->message); + res->count++; + break; + + case LDB_REPLY_REFERRAL: + if (res->refs) { + for (n = 0; res->refs[n]; n++) /*noop*/ ; + } else { + n = 0; + } + + res->refs = talloc_realloc(res, res->refs, char *, n + 2); + if (! res->refs) { + return request_error(sctx, LDB_ERR_OPERATIONS_ERROR); + } + + res->refs[n] = talloc_move(res->refs, &ares->referral); + res->refs[n + 1] = NULL; + break; + + case LDB_REPLY_DONE: + res->controls = talloc_move(res, &ares->controls); + + /* this is the last message, and means the request is done */ + return request_done(sctx); + } + + talloc_free(ares); + return LDB_SUCCESS; +} + +int nss_ldb_getpwnam(TALLOC_CTX *mem_ctx, + struct event_context *ev, + struct ldb_context *ldb, + const char *name, + nss_ldb_callback_t fn, void *ptr) +{ + struct nss_ldb_search_ctx *sctx; + struct ldb_request *req; + static const char *attrs[] = NSS_PW_ATTRS; + char *expression; + int ret; + + sctx = talloc(mem_ctx, struct nss_ldb_search_ctx); + if (!sctx) { + return RES_NOMEM; + } + sctx->callback = fn; + sctx->ptr = ptr; + sctx->res = talloc_zero(sctx, struct ldb_result); + if (!sctx->res) { + talloc_free(sctx); + return RES_NOMEM; + } + + expression = talloc_asprintf(sctx, NSS_PWNAM_FILTER, name); + if (!expression) { + talloc_free(sctx); + return RES_NOMEM; + } + + ret = ldb_build_search_req(&req, ldb, sctx, + ldb_dn_new(sctx, ldb, NSS_USER_BASE), + LDB_SCOPE_SUBTREE, + expression, attrs, NULL, + sctx, getpwnam_callback, + NULL); + if (ret != LDB_SUCCESS) { + return RES_ERROR; + } + + ret = ldb_request(ldb, req); + if (ret != LDB_SUCCESS) { + return RES_ERROR; + } + + return RES_SUCCESS; +} + +int nss_ldb_init(TALLOC_CTX *mem_ctx, + struct event_context *ev, + struct ldb_context **ldbp) +{ + struct ldb_context *ldb; + int ret; + + ldb = ldb_init(mem_ctx, ev); + if (!ldb) { + return RES_ERROR; + } + + ret = ldb_connect(ldb, NSS_LDB_PATH, 0, NULL); + if (ret != LDB_SUCCESS) { + talloc_free(ldb); + return RES_ERROR; + } + + *ldbp = ldb; + + return RES_SUCCESS; +} |