From 8420a36dc7fe72fb665e065b8673fa44ff1bbf21 Mon Sep 17 00:00:00 2001 From: Andrew Bartlett Date: Tue, 5 Jul 2011 10:01:32 +1000 Subject: ldb: make ldb a top level library for Samba 4.0 Signed-off-by: Andrew Tridgell --- source4/lib/ldb/nssldb/ldb-nss.c | 395 --------------------------------------- 1 file changed, 395 deletions(-) delete mode 100644 source4/lib/ldb/nssldb/ldb-nss.c (limited to 'source4/lib/ldb/nssldb/ldb-nss.c') diff --git a/source4/lib/ldb/nssldb/ldb-nss.c b/source4/lib/ldb/nssldb/ldb-nss.c deleted file mode 100644 index 92b0635561..0000000000 --- a/source4/lib/ldb/nssldb/ldb-nss.c +++ /dev/null @@ -1,395 +0,0 @@ -/* - 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 . -*/ - -#include "ldb-nss.h" - -struct _ldb_nss_context *_ldb_nss_ctx = NULL; - -NSS_STATUS _ldb_nss_init(void) -{ - int ret; - - pid_t mypid = getpid(); - - if (_ldb_nss_ctx != NULL) { - if (_ldb_nss_ctx->pid == mypid) { - /* already initialized */ - return NSS_STATUS_SUCCESS; - } else { - /* we are in a forked child now, reinitialize */ - talloc_free(_ldb_nss_ctx); - _ldb_nss_ctx = NULL; - } - } - - _ldb_nss_ctx = talloc_named(NULL, 0, "_ldb_nss_ctx(%u)", mypid); - if (_ldb_nss_ctx == NULL) { - return NSS_STATUS_UNAVAIL; - } - - _ldb_nss_ctx->pid = mypid; - - _ldb_nss_ctx->ldb = ldb_init(_ldb_nss_ctx, NULL); - if (_ldb_nss_ctx->ldb == NULL) { - goto failed; - } - - ret = ldb_connect(_ldb_nss_ctx->ldb, _LDB_NSS_URL, LDB_FLG_RDONLY, NULL); - if (ret != LDB_SUCCESS) { - goto failed; - } - - _ldb_nss_ctx->base = ldb_dn_new(_ldb_nss_ctx, _ldb_nss_ctx->ldb, _LDB_NSS_BASEDN); - if ( ! ldb_dn_validate(_ldb_nss_ctx->base)) { - goto failed; - } - - _ldb_nss_ctx->pw_cur = 0; - _ldb_nss_ctx->pw_res = NULL; - _ldb_nss_ctx->gr_cur = 0; - _ldb_nss_ctx->gr_res = NULL; - - return NSS_STATUS_SUCCESS; - -failed: - /* talloc_free(_ldb_nss_ctx); */ - _ldb_nss_ctx = NULL; - return NSS_STATUS_UNAVAIL; -} - -NSS_STATUS _ldb_nss_fill_passwd(struct passwd *result, - char *buffer, - int buflen, - int *errnop, - struct ldb_message *msg) -{ - int len; - int bufpos; - const char *tmp; - - bufpos = 0; - - /* get username */ - tmp = ldb_msg_find_attr_as_string(msg, "uid", NULL); - if (tmp == NULL) { - /* this is a fatal error */ - *errnop = errno = ENOENT; - return NSS_STATUS_UNAVAIL; - } - len = strlen(tmp)+1; - if (bufpos + len > buflen) { - /* buffer too small */ - *errnop = errno = EAGAIN; - return NSS_STATUS_TRYAGAIN; - } - memcpy(&buffer[bufpos], tmp, len); - result->pw_name = &buffer[bufpos]; - bufpos += len; - - /* get userPassword */ - tmp = ldb_msg_find_attr_as_string(msg, "userPassword", NULL); - if (tmp == NULL) { - tmp = "LDB"; - } - len = strlen(tmp)+1; - if (bufpos + len > buflen) { - /* buffer too small */ - *errnop = errno = EAGAIN; - return NSS_STATUS_TRYAGAIN; - } - memcpy(&buffer[bufpos], tmp, len); - result->pw_passwd = &buffer[bufpos]; - bufpos += len; - - /* this backend never serves an uid 0 user */ - result->pw_uid = ldb_msg_find_attr_as_int(msg, "uidNumber", 0); - if (result->pw_uid == 0) { - /* this is a fatal error */ - *errnop = errno = ENOENT; - return NSS_STATUS_UNAVAIL; - } - - result->pw_gid = ldb_msg_find_attr_as_int(msg, "gidNumber", 0); - if (result->pw_gid == 0) { - /* this is a fatal error */ - *errnop = errno = ENOENT; - return NSS_STATUS_UNAVAIL; - } - - /* get gecos */ - tmp = ldb_msg_find_attr_as_string(msg, "gecos", NULL); - if (tmp == NULL) { - tmp = ""; - } - len = strlen(tmp)+1; - if (bufpos + len > buflen) { - /* buffer too small */ - *errnop = errno = EAGAIN; - return NSS_STATUS_TRYAGAIN; - } - memcpy(&buffer[bufpos], tmp, len); - result->pw_gecos = &buffer[bufpos]; - bufpos += len; - - /* get homeDirectory */ - tmp = ldb_msg_find_attr_as_string(msg, "homeDirectory", NULL); - if (tmp == NULL) { - tmp = ""; - } - len = strlen(tmp)+1; - if (bufpos + len > buflen) { - /* buffer too small */ - *errnop = errno = EAGAIN; - return NSS_STATUS_TRYAGAIN; - } - memcpy(&buffer[bufpos], tmp, len); - result->pw_dir = &buffer[bufpos]; - bufpos += len; - - /* get shell */ - tmp = ldb_msg_find_attr_as_string(msg, "loginShell", NULL); - if (tmp == NULL) { - tmp = ""; - } - len = strlen(tmp)+1; - if (bufpos + len > buflen) { - /* buffer too small */ - *errnop = errno = EAGAIN; - return NSS_STATUS_TRYAGAIN; - } - memcpy(&buffer[bufpos], tmp, len); - result->pw_shell = &buffer[bufpos]; - bufpos += len; - - return NSS_STATUS_SUCCESS; -} - -NSS_STATUS _ldb_nss_fill_group(struct group *result, - char *buffer, - int buflen, - int *errnop, - struct ldb_message *group, - struct ldb_result *members) -{ - const char *tmp; - size_t len; - size_t bufpos; - size_t lsize; - unsigned int i; - - bufpos = 0; - - /* get group name */ - tmp = ldb_msg_find_attr_as_string(group, "cn", NULL); - if (tmp == NULL) { - /* this is a fatal error */ - *errnop = errno = ENOENT; - return NSS_STATUS_UNAVAIL; - } - len = strlen(tmp)+1; - if (bufpos + len > buflen) { - /* buffer too small */ - *errnop = errno = EAGAIN; - return NSS_STATUS_TRYAGAIN; - } - memcpy(&buffer[bufpos], tmp, len); - result->gr_name = &buffer[bufpos]; - bufpos += len; - - /* get userPassword */ - tmp = ldb_msg_find_attr_as_string(group, "userPassword", NULL); - if (tmp == NULL) { - tmp = "LDB"; - } - len = strlen(tmp)+1; - if (bufpos + len > buflen) { - /* buffer too small */ - *errnop = errno = EAGAIN; - return NSS_STATUS_TRYAGAIN; - } - memcpy(&buffer[bufpos], tmp, len); - result->gr_passwd = &buffer[bufpos]; - bufpos += len; - - result->gr_gid = ldb_msg_find_attr_as_int(group, "gidNumber", 0); - if (result->gr_gid == 0) { - /* this is a fatal error */ - *errnop = errno = ENOENT; - return NSS_STATUS_UNAVAIL; - } - - /* check if there is enough memory for the list of pointers */ - lsize = (members->count + 1) * sizeof(char *); - - /* align buffer on pointer boundary */ - bufpos += (sizeof(char*) - ((unsigned long)(buffer) % sizeof(char*))); - if ((buflen - bufpos) < lsize) { - /* buffer too small */ - *errnop = errno = EAGAIN; - return NSS_STATUS_TRYAGAIN; - } - - result->gr_mem = (char **)&buffer[bufpos]; - bufpos += lsize; - - for (i = 0; i < members->count; i++) { - tmp = ldb_msg_find_attr_as_string(members->msgs[i], "uid", NULL); - if (tmp == NULL) { - /* this is a fatal error */ - *errnop = errno = ENOENT; - return NSS_STATUS_UNAVAIL; - } - len = strlen(tmp)+1; - if (bufpos + len > buflen) { - /* buffer too small */ - *errnop = errno = EAGAIN; - return NSS_STATUS_TRYAGAIN; - } - memcpy(&buffer[bufpos], tmp, len); - result->gr_mem[i] = &buffer[bufpos]; - bufpos += len; - } - - result->gr_mem[i] = NULL; - - return NSS_STATUS_SUCCESS; -} - -NSS_STATUS _ldb_nss_fill_initgr(gid_t group, - long int limit, - long int *start, - long int *size, - gid_t **groups, - int *errnop, - struct ldb_result *grlist) -{ - NSS_STATUS ret; - unsigned int i; - - for (i = 0; i < grlist->count; i++) { - - if (limit && (*start > limit)) { - /* TODO: warn no all groups were reported */ - *errnop = 0; - ret = NSS_STATUS_SUCCESS; - goto done; - } - - if (*start == *size) { - /* buffer full, enlarge it */ - long int gs; - gid_t *gm; - - gs = (*size) + 32; - if (limit && (gs > limit)) { - gs = limit; - } - - gm = (gid_t *)realloc((*groups), gs * sizeof(gid_t)); - if ( ! gm) { - *errnop = ENOMEM; - ret = NSS_STATUS_UNAVAIL; - goto done; - } - - *groups = gm; - *size = gs; - } - - (*groups)[*start] = ldb_msg_find_attr_as_int(grlist->msgs[i], "gidNumber", 0); - if ((*groups)[*start] == 0 || (*groups)[*start] == group) { - /* skip root group or primary group */ - continue; - } - (*start)++; - - } - - *errnop = 0; - ret = NSS_STATUS_SUCCESS; -done: - return ret; -} - -#define _LDB_NSS_ALLOC_CHECK(mem) do { if (!mem) { errno = ENOMEM; return NSS_STATUS_UNAVAIL; } } while(0) - -NSS_STATUS _ldb_nss_group_request(struct ldb_result **_res, - struct ldb_dn *group_dn, - const char * const *attrs, - const char *mattr) -{ - struct ldb_control **ctrls; - struct ldb_control *ctrl; - struct ldb_asq_control *asqc; - struct ldb_request *req; - int ret; - struct ldb_result *res = *_res; - - ctrls = talloc_array(res, struct ldb_control *, 2); - _LDB_NSS_ALLOC_CHECK(ctrls); - - ctrl = talloc(ctrls, struct ldb_control); - _LDB_NSS_ALLOC_CHECK(ctrl); - - asqc = talloc(ctrl, struct ldb_asq_control); - _LDB_NSS_ALLOC_CHECK(asqc); - - asqc->source_attribute = talloc_strdup(asqc, mattr); - _LDB_NSS_ALLOC_CHECK(asqc->source_attribute); - - asqc->request = 1; - asqc->src_attr_len = strlen(asqc->source_attribute); - ctrl->oid = LDB_CONTROL_ASQ_OID; - ctrl->critical = 1; - ctrl->data = asqc; - ctrls[0] = ctrl; - ctrls[1] = NULL; - - ret = ldb_build_search_req( - &req, - _ldb_nss_ctx->ldb, - res, - group_dn, - LDB_SCOPE_BASE, - "(objectClass=*)", - attrs, - ctrls, - res, - ldb_search_default_callback); - - if (ret != LDB_SUCCESS) { - errno = ENOENT; - return NSS_STATUS_UNAVAIL; - } - - ldb_set_timeout(_ldb_nss_ctx->ldb, req, 0); - - ret = ldb_request(_ldb_nss_ctx->ldb, req); - - if (ret == LDB_SUCCESS) { - ret = ldb_wait(req->handle, LDB_WAIT_ALL); - } else { - talloc_free(req); - return NSS_STATUS_UNAVAIL; - } - - talloc_free(req); - return NSS_STATUS_SUCCESS; -} - -- cgit