source: vendor/3.5.4/source3/libads/cldap.c

/* 
   Samba Unix/Linux SMB client library 
   net ads cldap functions 
   Copyright (C) 2001 Andrew Tridgell (tridge@samba.org)
   Copyright (C) 2003 Jim McDonough (jmcd@us.ibm.com)
   Copyright (C) 2008 Guenther Deschner (gd@samba.org)
   Copyright (C) 2009 Stefan Metzmacher (metze@samba.org)

   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 "includes.h"
#include "../libcli/cldap/cldap.h"
#include "../lib/tsocket/tsocket.h"

/*******************************************************************
  do a cldap netlogon query.  Always 389/udp
*******************************************************************/

bool ads_cldap_netlogon(TALLOC_CTX *mem_ctx,
                        const char *server,
                        const char *realm,
                        uint32_t nt_version,
                        struct netlogon_samlogon_response **_reply)
{
        struct cldap_socket *cldap;
        struct cldap_netlogon io;
        struct netlogon_samlogon_response *reply;
        NTSTATUS status;
        struct sockaddr_storage ss;
        char addrstr[INET6_ADDRSTRLEN];
        const char *dest_str;
        int ret;
        struct tsocket_address *dest_addr;

        if (!interpret_string_addr_prefer_ipv4(&ss, server, 0)) {
                DEBUG(2,("Failed to resolve[%s] into an address for cldap\n",
                        server));
                return false;
        }
        dest_str = print_sockaddr(addrstr, sizeof(addrstr), &ss);

        ret = tsocket_address_inet_from_strings(mem_ctx, "ip",
                                                dest_str, LDAP_PORT,
                                                &dest_addr);
        if (ret != 0) {
                status = map_nt_error_from_unix(errno);
                DEBUG(2,("Failed to create cldap tsocket_address for %s - %s\n",
                         dest_str, nt_errstr(status)));
                return false;
        }

        /*
         * as we use a connected udp socket
         */
        status = cldap_socket_init(mem_ctx, NULL, NULL, dest_addr, &cldap);
        TALLOC_FREE(dest_addr);
        if (!NT_STATUS_IS_OK(status)) {
                DEBUG(2,("Failed to create cldap socket to %s: %s\n",
                         dest_str, nt_errstr(status)));
                return false;
        }

        reply = talloc(cldap, struct netlogon_samlogon_response);
        if (!reply) {
                goto failed;
        }

        /*
         * as we use a connected socket, so we don't need to specify the
         * destination
         */
        io.in.dest_address      = NULL;
        io.in.dest_port         = 0;
        io.in.realm             = realm;
        io.in.host              = NULL;
        io.in.user              = NULL;
        io.in.domain_guid       = NULL;
        io.in.domain_sid        = NULL;
        io.in.acct_control      = 0;
        io.in.version           = nt_version;
        io.in.map_response      = false;

        status = cldap_netlogon(cldap, NULL, reply, &io);
        if (!NT_STATUS_IS_OK(status)) {
                DEBUG(2,("cldap_netlogon() failed: %s\n", nt_errstr(status)));
                goto failed;
        }

        *reply = io.out.netlogon;
        *_reply = talloc_move(mem_ctx, &reply);
        TALLOC_FREE(cldap);
        return true;
failed:
        TALLOC_FREE(cldap);
        return false;
}

/*******************************************************************
  do a cldap netlogon query.  Always 389/udp
*******************************************************************/

bool ads_cldap_netlogon_5(TALLOC_CTX *mem_ctx,
                          const char *server,
                          const char *realm,
                          struct NETLOGON_SAM_LOGON_RESPONSE_EX *reply5)
{
        uint32_t nt_version = NETLOGON_NT_VERSION_5 | NETLOGON_NT_VERSION_5EX;
        struct netlogon_samlogon_response *reply = NULL;
        bool ret;

        ret = ads_cldap_netlogon(mem_ctx, server, realm, nt_version, &reply);
        if (!ret) {
                return false;
        }

        if (reply->ntver != NETLOGON_NT_VERSION_5EX) {
                DEBUG(0,("ads_cldap_netlogon_5: nt_version mismatch: 0x%08x\n",
                        reply->ntver));
                return false;
        }

        *reply5 = reply->data.nt5_ex;

        return true;
}