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* idmap_adex: Domain search interface
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* Copyright (C) Gerald (Jerry) Carter 2007-2008
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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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struct dc_info *prev, *next;
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struct likewise_cell *domain_cell;
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static struct dc_info *_dc_server_list = NULL;
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/**********************************************************************
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*********************************************************************/
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static struct dc_info *dc_list_head(void)
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return _dc_server_list;
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/**********************************************************************
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*********************************************************************/
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static NTSTATUS dc_add_domain(const char *domain)
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NTSTATUS nt_status = NT_STATUS_UNSUCCESSFUL;
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struct dc_info *dc = NULL;
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return NT_STATUS_INVALID_PARAMETER;
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DEBUG(10,("dc_add_domain: Attempting to add domain %s\n", domain));
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/* Check for duplicates */
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if (strequal (dc->dns_name, domain))
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DEBUG(10,("dc_add_domain: %s already in list\n", domain));
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dc = TALLOC_ZERO_P(NULL, struct dc_info);
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BAIL_ON_PTR_ERROR(dc, nt_status);
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dc->dns_name = talloc_strdup(dc, domain);
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BAIL_ON_PTR_ERROR(dc->dns_name, nt_status);
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DLIST_ADD_END(_dc_server_list, dc, struct dc_info*);
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nt_status = NT_STATUS_OK;
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DEBUG(5,("dc_add_domain: Successfully added %s\n", domain));
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if (!NT_STATUS_IS_OK(nt_status)) {
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DEBUG(0,("LWI: Failed to add new DC connection for %s (%s)\n",
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domain, nt_errstr(nt_status)));
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/**********************************************************************
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*********************************************************************/
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static void dc_server_list_destroy(void)
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struct dc_info *dc = dc_list_head();
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struct dc_info *p = dc->next;
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cell_destroy(dc->domain_cell);
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/**********************************************************************
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*********************************************************************/
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NTSTATUS domain_init_list(void)
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NTSTATUS nt_status = NT_STATUS_UNSUCCESSFUL;
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struct winbindd_tdc_domain *domains = NULL;
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size_t num_domains = 0;
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if (_dc_server_list != NULL) {
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dc_server_list_destroy();
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nt_status = dc_add_domain(lp_realm());
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BAIL_ON_NTSTATUS_ERROR(nt_status);
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if (!wcache_tdc_fetch_list(&domains, &num_domains)) {
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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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/* Add all domains with an incoming trust path */
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for (i=0; i<num_domains; i++) {
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uint32_t flags = (NETR_TRUST_FLAG_INBOUND|NETR_TRUST_FLAG_IN_FOREST);
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/* We just require one of the flags to be set here */
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if (domains[i].trust_flags & flags) {
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nt_status = dc_add_domain(domains[i].dns_name);
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BAIL_ON_NTSTATUS_ERROR(nt_status);
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nt_status = NT_STATUS_OK;
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if (!NT_STATUS_IS_OK(nt_status)) {
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DEBUG(2,("LWI: Failed to initialize DC list (%s)\n",
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nt_errstr(nt_status)));
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TALLOC_FREE(domains);
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/********************************************************************
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*******************************************************************/
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static NTSTATUS dc_do_search(struct dc_info *dc,
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const char *search_base,
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ADS_STATUS status = ADS_ERROR_NT(NT_STATUS_UNSUCCESSFUL);
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NTSTATUS nt_status = NT_STATUS_UNSUCCESSFUL;
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status = cell_do_search(dc->domain_cell, search_base,
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scope, expr, attrs, msg);
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nt_status = ads_ntstatus(status);
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/**********************************************************************
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*********************************************************************/
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static struct dc_info *dc_find_domain(const char *dns_domain)
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struct dc_info *dc = dc_list_head();
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if (strequal(dc->dns_name, dns_domain)) {
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/**********************************************************************
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*********************************************************************/
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NTSTATUS dc_search_domains(struct likewise_cell **cell,
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NTSTATUS nt_status = NT_STATUS_UNSUCCESSFUL;
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TALLOC_CTX *frame = talloc_stackframe();
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const char *attrs[] = { "*", NULL };
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struct dc_info *dc = NULL;
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const char *base = 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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dns_domain = cell_dn_to_dns(dn);
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BAIL_ON_PTR_ERROR(dns_domain, nt_status);
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if ((dc = dc_find_domain(dns_domain)) == NULL) {
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nt_status = NT_STATUS_TRUSTED_DOMAIN_FAILURE;
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BAIL_ON_NTSTATUS_ERROR(nt_status);
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/* Reparse the cell settings for the domain if necessary */
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if (!dc->domain_cell) {
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base_dn = ads_build_dn(dc->dns_name);
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BAIL_ON_PTR_ERROR(base_dn, nt_status);
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nt_status = cell_connect_dn(&dc->domain_cell, base_dn);
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BAIL_ON_NTSTATUS_ERROR(nt_status);
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nt_status = cell_lookup_settings(dc->domain_cell);
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BAIL_ON_NTSTATUS_ERROR(nt_status);
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/* By definition this is already part of a larger
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forest-wide search scope */
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cell_set_flags(dc->domain_cell, LWCELL_FLAG_SEARCH_FOREST);
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/* Check whether we are operating in non-schema or RFC2307
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if (cell_flags(dc->domain_cell) & LWCELL_FLAG_USE_RFC2307_ATTRS) {
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nt_status = dc_do_search(dc, dn, LDAP_SCOPE_BASE,
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"(objectclass=*)", attrs, msg);
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const char *sid_str = NULL;
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sid_str = sid_string_talloc(frame, sid);
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BAIL_ON_PTR_ERROR(sid_str, nt_status);
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filter = talloc_asprintf(frame, "(keywords=backLink=%s)",
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BAIL_ON_PTR_ERROR(filter, nt_status);
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base = cell_search_base(dc->domain_cell);
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BAIL_ON_PTR_ERROR(base, nt_status);
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nt_status = dc_do_search(dc, base, LDAP_SCOPE_SUBTREE,
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BAIL_ON_NTSTATUS_ERROR(nt_status);
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*cell = dc->domain_cell;
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talloc_destroy(CONST_DISCARD(char*, base));
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talloc_destroy(frame);