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/*
Unix SMB/CIFS implementation.
NBT netbios routines and daemon - version 2
Copyright (C) Andrew Tridgell 1994-1998
Copyright (C) Luke Kenneth Casson Leighton 1994-1998
Copyright (C) Jeremy Allison 1994-2003
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 "../librpc/gen_ndr/svcctl.h"
#include "nmbd/nmbd.h"
extern uint16 samba_nb_type; /* Samba's NetBIOS type. */
/****************************************************************************
Fail to become a Logon server on a subnet.
****************************************************************************/
static void become_logon_server_fail(struct subnet_record *subrec,
struct response_record *rrec,
struct nmb_name *fail_name)
{
unstring failname;
struct work_record *work;
struct server_record *servrec;
pull_ascii_nstring(failname, sizeof(failname), fail_name->name);
work = find_workgroup_on_subnet(subrec, failname);
if(!work) {
DEBUG(0,("become_logon_server_fail: Error - cannot find \
workgroup %s on subnet %s\n", failname, subrec->subnet_name));
return;
}
if((servrec = find_server_in_workgroup( work, lp_netbios_name())) == NULL) {
DEBUG(0,("become_logon_server_fail: Error - cannot find server %s \
in workgroup %s on subnet %s\n",
lp_netbios_name(), failname, subrec->subnet_name));
work->log_state = LOGON_NONE;
return;
}
/* Set the state back to LOGON_NONE. */
work->log_state = LOGON_NONE;
servrec->serv.type &= ~SV_TYPE_DOMAIN_CTRL;
DEBUG(0,("become_logon_server_fail: Failed to become a domain master for \
workgroup %s on subnet %s. Couldn't register name %s.\n",
work->work_group, subrec->subnet_name, nmb_namestr(fail_name)));
}
/****************************************************************************
Become a Logon server on a subnet.
****************************************************************************/
static void become_logon_server_success(struct subnet_record *subrec,
struct userdata_struct *userdata,
struct nmb_name *registered_name,
uint16 nb_flags,
int ttl, struct in_addr registered_ip)
{
unstring reg_name;
struct work_record *work;
struct server_record *servrec;
pull_ascii_nstring(reg_name, sizeof(reg_name), registered_name->name);
work = find_workgroup_on_subnet( subrec, reg_name);
if(!work) {
DEBUG(0,("become_logon_server_success: Error - cannot find \
workgroup %s on subnet %s\n", reg_name, subrec->subnet_name));
return;
}
if((servrec = find_server_in_workgroup( work, lp_netbios_name())) == NULL) {
DEBUG(0,("become_logon_server_success: Error - cannot find server %s \
in workgroup %s on subnet %s\n",
lp_netbios_name(), reg_name, subrec->subnet_name));
work->log_state = LOGON_NONE;
return;
}
/* Set the state in the workgroup structure. */
work->log_state = LOGON_SRV; /* Become domain master. */
/* Update our server status. */
servrec->serv.type |= (SV_TYPE_NT|SV_TYPE_DOMAIN_MEMBER);
/* To allow Win95 policies to load we need to set type domain
controller.
*/
servrec->serv.type |= SV_TYPE_DOMAIN_CTRL;
/* Tell the namelist writer to write out a change. */
subrec->work_changed = True;
/*
* Add the WORKGROUP<1C> name to the UNICAST subnet with the IP address
* for this subnet so we will respond to queries on this name.
*/
{
struct nmb_name nmbname;
make_nmb_name(&nmbname,lp_workgroup(),0x1c);
insert_permanent_name_into_unicast(subrec, &nmbname, 0x1c);
}
DEBUG(0,("become_logon_server_success: Samba is now a logon server \
for workgroup %s on subnet %s\n", work->work_group, subrec->subnet_name));
}
/*******************************************************************
Become a logon server by attempting to register the WORKGROUP<1c>
group name.
******************************************************************/
static void become_logon_server(struct subnet_record *subrec,
struct work_record *work)
{
DEBUG(2,("become_logon_server: Atempting to become logon server for workgroup %s \
on subnet %s\n", work->work_group,subrec->subnet_name));
DEBUG(3,("become_logon_server: go to first stage: register %s<1c> name\n",
work->work_group));
work->log_state = LOGON_WAIT;
register_name(subrec, work->work_group,0x1c,samba_nb_type|NB_GROUP,
become_logon_server_success,
become_logon_server_fail, NULL);
}
/*****************************************************************************
Add the internet group <1c> logon names by unicast and broadcast.
****************************************************************************/
void add_logon_names(void)
{
struct subnet_record *subrec;
for (subrec = FIRST_SUBNET; subrec; subrec = NEXT_SUBNET_INCLUDING_UNICAST(subrec)) {
struct work_record *work = find_workgroup_on_subnet(subrec, lp_workgroup());
if (work && (work->log_state == LOGON_NONE)) {
struct nmb_name nmbname;
make_nmb_name(&nmbname,lp_workgroup(),0x1c);
if (find_name_on_subnet(subrec, &nmbname, FIND_SELF_NAME) == NULL) {
if( DEBUGLVL( 0 ) ) {
dbgtext( "add_domain_logon_names:\n" );
dbgtext( "Attempting to become logon server " );
dbgtext( "for workgroup %s ", lp_workgroup() );
dbgtext( "on subnet %s\n", subrec->subnet_name );
}
become_logon_server(subrec, work);
}
}
}
}
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