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* idmap_adex: Support for AD Forests
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* Copyright (C) Gerald (Jerry) Carter 2006-2008
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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#include "idmap_adex.h"
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#define DBGC_CLASS DBGC_IDMAP
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static struct likewise_cell *_lw_cell_list = NULL;
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/**********************************************************************
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Return the current HEAD of the list
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*********************************************************************/
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struct likewise_cell *cell_list_head(void)
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/**********************************************************************
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*********************************************************************/
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void cell_destroy(struct likewise_cell *c)
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ads_destroy(&c->conn);
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/**********************************************************************
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Free all cell entries and reset the list head to NULL
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*********************************************************************/
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void cell_list_destroy(void)
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struct likewise_cell *p = _lw_cell_list;
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struct likewise_cell *q = p->next;
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/**********************************************************************
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Add a new cell structure to the list
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*********************************************************************/
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struct likewise_cell* cell_new(void)
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struct likewise_cell *c;
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/* Each cell struct is a TALLOC_CTX* */
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c = TALLOC_ZERO_P(NULL, struct likewise_cell);
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DEBUG(0,("cell_new: memory allocation failure!\n"));
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/**********************************************************************
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Add a new cell structure to the list
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*********************************************************************/
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bool cell_list_add(struct likewise_cell * cell)
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/* Always add to the end */
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DLIST_ADD_END(_lw_cell_list, cell, struct likewise_cell *);
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/**********************************************************************
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Add a new cell structure to the list
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*********************************************************************/
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bool cell_list_remove(struct likewise_cell * cell)
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/* Remove and drop the cell structure */
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DLIST_REMOVE(_lw_cell_list, cell);
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talloc_destroy(cell);
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/**********************************************************************
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Set the containing DNS domain for a cell
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*********************************************************************/
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void cell_set_dns_domain(struct likewise_cell *c, const char *dns_domain)
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c->dns_domain = talloc_strdup(c, dns_domain);
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/**********************************************************************
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Set ADS connection for a cell
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*********************************************************************/
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void cell_set_connection(struct likewise_cell *c, ADS_STRUCT *ads)
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/**********************************************************************
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*********************************************************************/
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void cell_set_flags(struct likewise_cell *c, uint32_t flags)
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/**********************************************************************
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*********************************************************************/
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void cell_clear_flags(struct likewise_cell *c, uint32_t flags)
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/**********************************************************************
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*********************************************************************/
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void cell_set_dn(struct likewise_cell *c, const char *dn)
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c->dn = talloc_strdup(c, dn);
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/**********************************************************************
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*********************************************************************/
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void cell_set_domain_sid(struct likewise_cell *c, DOM_SID *sid)
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sid_copy(&c->domain_sid, sid);
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/**********************************************************************
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*********************************************************************/
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const char* cell_search_base(struct likewise_cell *c)
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return talloc_asprintf(c, "cn=%s,%s", ADEX_CELL_RDN, c->dn);
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/**********************************************************************
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*********************************************************************/
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bool cell_search_forest(struct likewise_cell *c)
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uint32_t test_flags = LWCELL_FLAG_SEARCH_FOREST;
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return ((c->flags & test_flags) == test_flags);
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/**********************************************************************
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*********************************************************************/
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uint32_t cell_flags(struct likewise_cell *c)
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/**********************************************************************
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*********************************************************************/
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const char *cell_dns_domain(struct likewise_cell *c)
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return c->dns_domain;
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/**********************************************************************
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*********************************************************************/
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ADS_STRUCT *cell_connection(struct likewise_cell *c)
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* Connection functions
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/********************************************************************
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*******************************************************************/
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NTSTATUS cell_connect(struct likewise_cell *c)
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ADS_STRUCT *ads = NULL;
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ADS_STATUS ads_status;
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struct sockaddr_storage dcip;
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NTSTATUS nt_status = NT_STATUS_UNSUCCESSFUL;
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/* have to at least have the AD domain name */
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if (!c->dns_domain) {
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nt_status = NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
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BAIL_ON_NTSTATUS_ERROR(nt_status);
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/* clear out any old information */
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ads_destroy(&c->conn);
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/* now setup the new connection */
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ads = ads_init(c->dns_domain, NULL, NULL);
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BAIL_ON_PTR_ERROR(ads, nt_status);
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secrets_fetch_machine_password(lp_workgroup(), NULL, NULL);
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ads->auth.realm = SMB_STRDUP(lp_realm());
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/* Make the connection. We should already have an initial
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TGT using the machine creds */
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if (cell_flags(c) & LWCELL_FLAG_GC_CELL) {
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ads_status = ads_connect_gc(ads);
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/* Set up server affinity for normal cells and the client
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if (!get_dc_name("", c->dns_domain, dc_name, &dcip)) {
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nt_status = NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND;
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BAIL_ON_NTSTATUS_ERROR(nt_status);
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ads_status = ads_connect(ads);
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nt_status = ads_ntstatus(ads_status);
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if (!NT_STATUS_IS_OK(nt_status)) {
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/********************************************************************
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*******************************************************************/
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NTSTATUS cell_connect_dn(struct likewise_cell **c, const char *dn)
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NTSTATUS nt_status = NT_STATUS_UNSUCCESSFUL;
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struct likewise_cell *new_cell = NULL;
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char *dns_domain = NULL;
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nt_status = NT_STATUS_INVALID_PARAMETER;
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BAIL_ON_NTSTATUS_ERROR(nt_status);
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if ((new_cell = cell_new()) == NULL) {
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nt_status = NT_STATUS_NO_MEMORY;
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BAIL_ON_NTSTATUS_ERROR(nt_status);
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/* Set the DNS domain, dn, etc ... and add it to the list */
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dns_domain = cell_dn_to_dns(dn);
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cell_set_dns_domain(new_cell, dns_domain);
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SAFE_FREE(dns_domain);
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cell_set_dn(new_cell, dn);
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nt_status = cell_connect(new_cell);
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BAIL_ON_NTSTATUS_ERROR(nt_status);
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if (!NT_STATUS_IS_OK(nt_status)) {
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DEBUG(1,("LWI: Failled to connect to cell \"%s\" (%s)\n",
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dn ? dn : "NULL", nt_errstr(nt_status)));
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talloc_destroy(new_cell);
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/********************************************************************
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*******************************************************************/
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#define MAX_SEARCH_COUNT 2
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ADS_STATUS cell_do_search(struct likewise_cell *c,
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const char *search_base,
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int search_count = 0;
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/* check for a NULL connection */
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nt_status = cell_connect(c);
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if (!NT_STATUS_IS_OK(nt_status)) {
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status = ADS_ERROR_NT(nt_status);
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DEBUG(10, ("cell_do_search: Base = %s, Filter = %s, Scope = %d, GC = %s\n",
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search_base, expr, scope,
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c->conn->server.gc ? "yes" : "no"));
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/* we try multiple times in case the ADS_STRUCT is bad
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and we need to reconnect */
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while (search_count < MAX_SEARCH_COUNT) {
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status = ads_do_search(c->conn, search_base,
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scope, expr, attrs, msg);
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if (ADS_ERR_OK(status)) {
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if (DEBUGLEVEL >= 10) {
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LDAPMessage *e = NULL;
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int n = ads_count_replies(c->conn, *msg);
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DEBUG(10,("cell_do_search: Located %d entries\n", n));
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for (e=ads_first_entry(c->conn, *msg);
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e = ads_next_entry(c->conn, e))
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char *dn = ads_get_dn(c->conn, talloc_tos(), e);
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DEBUGADD(10,(" dn: %s\n", dn ? dn : "<NULL>"));
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DEBUG(5, ("cell_do_search: search[%d] failed (%s)\n",
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search_count, ads_errstr(status)));
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/* Houston, we have a problem */
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if (status.error_type == ENUM_ADS_ERROR_LDAP) {
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switch (status.err.rc) {
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case LDAP_TIMELIMIT_EXCEEDED:
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case -1: /* we get this error if we cannot contact
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nt_status = cell_connect(c);
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if (!NT_STATUS_IS_OK(nt_status)) {
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status = ADS_ERROR_NT(nt_status);
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/* we're all done here */
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DEBUG(5, ("cell_do_search: exceeded maximum search count!\n"));
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return ADS_ERROR_NT(NT_STATUS_UNSUCCESSFUL);