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Viewing changes to source4/nbt_server/dgram/ntlogon.c

  • Committer: Chuck Short
  • Date: 2010-09-28 20:38:39 UTC
  • Revision ID: zulcss@ubuntu.com-20100928203839-pgjulytsi9ue63x1
Initial version

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source4/nbt_server/dgram/ntlogon.c
 
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/* 
 
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   Unix SMB/CIFS implementation.
 
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   NBT datagram ntlogon server
 
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   Copyright (C) Andrew Tridgell        2005
 
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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 3 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, see <http://www.gnu.org/licenses/>.
 
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*/
 
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#include "includes.h"
 
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#include "nbt_server/nbt_server.h"
 
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#include "smbd/service_task.h"
 
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#include "lib/socket/socket.h"
 
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#include "librpc/gen_ndr/ndr_nbt.h"
 
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#include "param/param.h"
 
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/*
 
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  reply to a SAM LOGON request
 
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 */
 
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static void nbtd_ntlogon_sam_logon(struct dgram_mailslot_handler *dgmslot, 
 
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                                   struct nbtd_interface *iface,
 
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                                   struct nbt_dgram_packet *packet,
 
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                                   const struct socket_address *src,
 
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                                   struct nbt_ntlogon_packet *ntlogon)
 
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{
 
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        struct nbt_name *name = &packet->data.msg.dest_name;
 
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        struct nbtd_interface *reply_iface = nbtd_find_reply_iface(iface, src->addr, false);
 
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        struct nbt_ntlogon_packet reply;
 
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        struct nbt_ntlogon_sam_logon_reply *logon;
 
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        /* only answer sam logon requests on the PDC or LOGON names */
 
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        if (name->type != NBT_NAME_PDC && name->type != NBT_NAME_LOGON) {
 
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                return;
 
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        }
 
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        /* setup a SAM LOGON reply */
 
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        ZERO_STRUCT(reply);
 
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        reply.command = NTLOGON_SAM_LOGON_REPLY;
 
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        logon = &reply.req.reply;
 
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        logon->server           = talloc_asprintf(packet, "\\\\%s", 
 
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                                                  lp_netbios_name(iface->nbtsrv->task->lp_ctx));
 
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        logon->user_name        = ntlogon->req.logon.user_name;
 
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        logon->domain           = lp_workgroup(iface->nbtsrv->task->lp_ctx);
 
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        logon->nt_version       = 1;
 
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        logon->lmnt_token       = 0xFFFF;
 
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        logon->lm20_token       = 0xFFFF;
 
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        packet->data.msg.dest_name.type = 0;
 
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        dgram_mailslot_ntlogon_reply(reply_iface->dgmsock, 
 
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                                     packet, 
 
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                                     lp_netbios_name(iface->nbtsrv->task->lp_ctx),
 
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                                     ntlogon->req.logon.mailslot_name,
 
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                                     &reply);
 
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}
 
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/*
 
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  handle incoming ntlogon mailslot requests
 
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*/
 
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void nbtd_mailslot_ntlogon_handler(struct dgram_mailslot_handler *dgmslot, 
 
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                                   struct nbt_dgram_packet *packet, 
 
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                                   struct socket_address *src)
 
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{
 
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        NTSTATUS status = NT_STATUS_NO_MEMORY;
 
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        struct nbtd_interface *iface = 
 
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                talloc_get_type(dgmslot->private_data, struct nbtd_interface);
 
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        struct nbt_ntlogon_packet *ntlogon = 
 
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                talloc(dgmslot, struct nbt_ntlogon_packet);
 
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        struct nbtd_iface_name *iname;
 
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        struct nbt_name *name = &packet->data.msg.dest_name;
 
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        if (ntlogon == NULL) goto failed;
 
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        /*
 
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          see if the we are listening on the destination netbios name
 
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        */
 
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        iname = nbtd_find_iname(iface, name, 0);
 
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        if (iname == NULL) {
 
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                status = NT_STATUS_BAD_NETWORK_NAME;
 
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                goto failed;
 
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        }
 
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        DEBUG(2,("ntlogon request to %s from %s:%d\n", 
 
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                 nbt_name_string(ntlogon, name), src->addr, src->port));
 
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        status = dgram_mailslot_ntlogon_parse(dgmslot, ntlogon, packet, ntlogon);
 
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        if (!NT_STATUS_IS_OK(status)) goto failed;
 
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        NDR_PRINT_DEBUG(nbt_ntlogon_packet, ntlogon);
 
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        switch (ntlogon->command) {
 
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        case NTLOGON_SAM_LOGON:
 
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                nbtd_ntlogon_sam_logon(dgmslot, iface, packet, src, ntlogon);
 
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                break;
 
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        default:
 
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                DEBUG(2,("unknown ntlogon op %d from %s:%d\n", 
 
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                         ntlogon->command, src->addr, src->port));
 
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                break;
 
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        }
 
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        talloc_free(ntlogon);
 
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        return;
 
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failed:
 
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        DEBUG(2,("nbtd ntlogon handler failed from %s:%d to %s - %s\n",
 
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                 src->addr, src->port, nbt_name_string(ntlogon, name),
 
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                 nt_errstr(status)));
 
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        talloc_free(ntlogon);
 
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}