diff options
Diffstat (limited to 'lib/ldb/nssldb/ldb-pwd.c')
| -rw-r--r-- | lib/ldb/nssldb/ldb-pwd.c | 242 |
1 files changed, 242 insertions, 0 deletions
diff --git a/lib/ldb/nssldb/ldb-pwd.c b/lib/ldb/nssldb/ldb-pwd.c new file mode 100644 index 0000000..6ab103a --- /dev/null +++ b/lib/ldb/nssldb/ldb-pwd.c @@ -0,0 +1,242 @@ +/* + LDB nsswitch module + + Copyright (C) Simo Sorce 2006 + + 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 + Library General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include "ldb-nss.h" + +extern struct _ldb_nss_context *_ldb_nss_ctx; + +const char *_ldb_nss_pw_attrs[] = { + "uid", + "userPassword", + "uidNumber", + "gidNumber", + "gecos", + "homeDirectory", + "loginShell", + NULL +}; + +NSS_STATUS _nss_ldb_setpwent(void) +{ + int ret; + ret = _ldb_nss_init(); + if (ret != NSS_STATUS_SUCCESS) { + return ret; + } + + _ldb_nss_ctx->pw_cur = 0; + if (_ldb_nss_ctx->pw_res != NULL) { + talloc_free(_ldb_nss_ctx->pw_res); + _ldb_nss_ctx->pw_res = NULL; + } + + ret = ldb_search(_ldb_nss_ctx->ldb, + _ldb_nss_ctx->ldb, + &_ldb_nss_ctx->pw_res, + _ldb_nss_ctx->base, + LDB_SCOPE_SUBTREE, + _ldb_nss_pw_attrs, + _LDB_NSS_PWENT_FILTER); + if (ret != LDB_SUCCESS) { + return NSS_STATUS_UNAVAIL; + } + + return NSS_STATUS_SUCCESS; +} + +NSS_STATUS _nss_ldb_endpwent(void) +{ + int ret; + + ret = _ldb_nss_init(); + if (ret != NSS_STATUS_SUCCESS) { + return ret; + } + + _ldb_nss_ctx->pw_cur = 0; + if (_ldb_nss_ctx->pw_res) { + talloc_free(_ldb_nss_ctx->pw_res); + _ldb_nss_ctx->pw_res = NULL; + } + + return NSS_STATUS_SUCCESS; +} + +NSS_STATUS _nss_ldb_getpwent_r(struct passwd *result_buf, + char *buffer, + int buflen, + int *errnop) +{ + int ret; + + ret = _ldb_nss_init(); + if (ret != NSS_STATUS_SUCCESS) { + return ret; + } + + *errnop = 0; + + if (_ldb_nss_ctx->pw_cur >= _ldb_nss_ctx->pw_res->count) { + /* already returned all entries */ + return NSS_STATUS_NOTFOUND; + } + + ret = _ldb_nss_fill_passwd(result_buf, + buffer, + buflen, + errnop, + _ldb_nss_ctx->pw_res->msgs[_ldb_nss_ctx->pw_cur]); + if (ret != NSS_STATUS_SUCCESS) { + return ret; + } + + _ldb_nss_ctx->pw_cur++; + + return NSS_STATUS_SUCCESS; +} + +NSS_STATUS _nss_ldb_getpwuid_r(uid_t uid, struct passwd *result_buf, char *buffer, size_t buflen, int *errnop) +{ + int ret; + char *filter; + struct ldb_result *res; + + if (uid == 0) { /* we don't serve root uid by policy */ + *errnop = errno = ENOENT; + return NSS_STATUS_NOTFOUND; + } + + ret = _ldb_nss_init(); + if (ret != NSS_STATUS_SUCCESS) { + return ret; + } + + /* build the filter for this uid */ + filter = talloc_asprintf(_ldb_nss_ctx, _LDB_NSS_PWUID_FILTER, uid); + if (filter == NULL) { + /* this is a fatal error */ + *errnop = errno = ENOMEM; + ret = NSS_STATUS_UNAVAIL; + goto done; + } + + /* search the entry */ + ret = ldb_search(_ldb_nss_ctx->ldb, + _ldb_nss_ctx->ldb, + &res, + _ldb_nss_ctx->base, + LDB_SCOPE_SUBTREE, + _ldb_nss_pw_attrs, + filter); + if (ret != LDB_SUCCESS) { + /* this is a fatal error */ + *errnop = errno = ENOENT; + ret = NSS_STATUS_UNAVAIL; + goto done; + } + + /* if none found return */ + if (res->count == 0) { + *errnop = errno = ENOENT; + ret = NSS_STATUS_NOTFOUND; + goto done; + } + + if (res->count != 1) { + /* this is a fatal error */ + *errnop = errno = ENOENT; + ret = NSS_STATUS_UNAVAIL; + goto done; + } + + /* fill in the passwd struct */ + ret = _ldb_nss_fill_passwd(result_buf, + buffer, + buflen, + errnop, + res->msgs[0]); + +done: + talloc_free(filter); + talloc_free(res); + return ret; +} + +NSS_STATUS _nss_ldb_getpwnam_r(const char *name, struct passwd *result_buf, char *buffer, size_t buflen, int *errnop) +{ + int ret; + char *filter; + struct ldb_result *res; + + ret = _ldb_nss_init(); + if (ret != NSS_STATUS_SUCCESS) { + return ret; + } + + /* build the filter for this name */ + filter = talloc_asprintf(_ldb_nss_ctx, _LDB_NSS_PWNAM_FILTER, name); + if (filter == NULL) { + /* this is a fatal error */ + *errnop = errno = ENOENT; + ret = NSS_STATUS_UNAVAIL; + goto done; + } + + /* search the entry */ + ret = ldb_search(_ldb_nss_ctx->ldb, + _ldb_nss_ctx->ldb, + &res, + _ldb_nss_ctx->base, + LDB_SCOPE_SUBTREE, + _ldb_nss_pw_attrs, + filter); + if (ret != LDB_SUCCESS) { + /* this is a fatal error */ + *errnop = errno = ENOENT; + ret = NSS_STATUS_UNAVAIL; + goto done; + } + + /* if none found return */ + if (res->count == 0) { + *errnop = errno = ENOENT; + ret = NSS_STATUS_NOTFOUND; + goto done; + } + + if (res->count != 1) { + /* this is a fatal error */ + *errnop = errno = ENOENT; + ret = NSS_STATUS_UNAVAIL; + goto done; + } + + /* fill in the passwd struct */ + ret = _ldb_nss_fill_passwd(result_buf, + buffer, + buflen, + errnop, + res->msgs[0]); + +done: + talloc_free(filter); + talloc_free(res); + return ret; +} + |