/* 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" 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, global_myname())) == NULL) { DEBUG(0,("become_logon_server_fail: Error - cannot find server %s \ in workgroup %s on subnet %s\n", global_myname(), 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, global_myname())) == NULL) { DEBUG(0,("become_logon_server_success: Error - cannot find server %s \ in workgroup %s on subnet %s\n", global_myname(), 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); } } } }