2 Unix SMB/Netbios implementation.
4 NBT netbios routines and daemon - version 2
5 Copyright (C) Andrew Tridgell 1994-1998
6 Copyright (C) Luke Kenneth Casson Leighton 1994-1998
7 Copyright (C) Jeremy Allison 1994-1998
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
21 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
27 extern int DEBUGLEVEL;
30 extern pstring global_myname;
31 extern fstring global_myworkgroup;
32 extern char **my_netbios_names;
33 extern struct in_addr ipzero;
34 extern struct in_addr allones_ip;
36 extern uint16 samba_nb_type; /* Samba's NetBIOS type. */
38 /****************************************************************************
39 Fail to become a Logon server on a subnet.
40 ****************************************************************************/
41 static void become_logon_server_fail(struct subnet_record *subrec,
42 struct response_record *rrec,
43 struct nmb_name *fail_name)
45 struct work_record *work = find_workgroup_on_subnet(subrec, fail_name->name);
46 struct server_record *servrec;
50 DEBUG(0,("become_logon_server_fail: Error - cannot find \
51 workgroup %s on subnet %s\n", fail_name->name, subrec->subnet_name));
55 if((servrec = find_server_in_workgroup( work, global_myname)) == NULL)
57 DEBUG(0,("become_logon_server_fail: Error - cannot find server %s \
58 in workgroup %s on subnet %s\n",
59 global_myname, fail_name->name, subrec->subnet_name));
60 work->log_state = LOGON_NONE;
64 /* Set the state back to LOGON_NONE. */
65 work->log_state = LOGON_NONE;
67 servrec->serv.type &= ~SV_TYPE_DOMAIN_CTRL;
69 DEBUG(0,("become_logon_server_fail: Failed to become a domain master for \
70 workgroup %s on subnet %s. Couldn't register name %s.\n",
71 work->work_group, subrec->subnet_name, nmb_namestr(fail_name)));
75 /****************************************************************************
76 Become a Logon server on a subnet.
77 ****************************************************************************/
79 static void become_logon_server_success(struct subnet_record *subrec,
80 struct userdata_struct *userdata,
81 struct nmb_name *registered_name,
83 int ttl, struct in_addr registered_ip)
85 struct work_record *work = find_workgroup_on_subnet( subrec, registered_name->name);
86 struct server_record *servrec;
90 DEBUG(0,("become_logon_server_success: Error - cannot find \
91 workgroup %s on subnet %s\n", registered_name->name, subrec->subnet_name));
95 if((servrec = find_server_in_workgroup( work, global_myname)) == NULL)
97 DEBUG(0,("become_logon_server_success: Error - cannot find server %s \
98 in workgroup %s on subnet %s\n",
99 global_myname, registered_name->name, subrec->subnet_name));
100 work->log_state = LOGON_NONE;
104 /* Set the state in the workgroup structure. */
105 work->log_state = LOGON_SRV; /* Become domain master. */
107 /* Update our server status. */
108 servrec->serv.type |= (SV_TYPE_NT|SV_TYPE_DOMAIN_MEMBER);
109 /* To allow Win95 policies to load we need to set type domain
112 servrec->serv.type |= SV_TYPE_DOMAIN_CTRL;
114 /* Tell the namelist writer to write out a change. */
115 subrec->work_changed = True;
117 DEBUG(0,("become_logon_server_success: Samba is now a logon server \
118 for workgroup %s on subnet %s\n", work->work_group, subrec->subnet_name));
121 /*******************************************************************
122 Become a logon server by attempting to register the WORKGROUP<1c>
124 ******************************************************************/
126 static void become_logon_server(struct subnet_record *subrec,
127 struct work_record *work)
129 DEBUG(2,("become_logon_server: Atempting to become logon server for workgroup %s \
130 on subnet %s\n", work->work_group,subrec->subnet_name));
132 DEBUG(3,("become_logon_server: go to first stage: register %s<1c> name\n",
134 work->log_state = LOGON_WAIT;
136 register_name(subrec, work->work_group,0x1c,samba_nb_type|NB_GROUP,
137 become_logon_server_success,
138 become_logon_server_fail, NULL);
141 /*****************************************************************************
142 Add the internet group <1c> logon names by unicast and broadcast.
143 ****************************************************************************/
144 void add_logon_names(void)
146 struct subnet_record *subrec;
148 for (subrec = FIRST_SUBNET; subrec; subrec = NEXT_SUBNET_INCLUDING_UNICAST(subrec))
150 struct work_record *work = find_workgroup_on_subnet(subrec, global_myworkgroup);
152 if (work && (work->log_state == LOGON_NONE))
154 struct nmb_name nmbname;
155 make_nmb_name(&nmbname,global_myworkgroup,0x1c,scope);
157 if (find_name_on_subnet(subrec, &nmbname, FIND_SELF_NAME) == NULL)
161 dbgtext( "add_domain_logon_names:\n" );
162 dbgtext( "Attempting to become logon server " );
163 dbgtext( "for workgroup %s ", global_myworkgroup );
164 dbgtext( "on subnet %s\n", subrec->subnet_name );
166 become_logon_server(subrec, work);