2 Unix SMB/CIFS implementation.
3 NBT netbios routines and daemon - version 2
4 Copyright (C) Andrew Tridgell 1994-1998
5 Copyright (C) Luke Kenneth Casson Leighton 1994-1998
6 Copyright (C) Jeremy Allison 1994-1998
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
26 extern pstring global_myname;
27 extern fstring global_myworkgroup;
28 extern char **my_netbios_names;
29 extern struct in_addr allones_ip;
31 extern uint16 samba_nb_type; /* Samba's NetBIOS type. */
33 /****************************************************************************
34 Fail to become a Logon server on a subnet.
35 ****************************************************************************/
36 static void become_logon_server_fail(struct subnet_record *subrec,
37 struct response_record *rrec,
38 struct nmb_name *fail_name)
40 struct work_record *work = find_workgroup_on_subnet(subrec, fail_name->name);
41 struct server_record *servrec;
45 DEBUG(0,("become_logon_server_fail: Error - cannot find \
46 workgroup %s on subnet %s\n", fail_name->name, subrec->subnet_name));
50 if((servrec = find_server_in_workgroup( work, global_myname)) == NULL)
52 DEBUG(0,("become_logon_server_fail: Error - cannot find server %s \
53 in workgroup %s on subnet %s\n",
54 global_myname, fail_name->name, subrec->subnet_name));
55 work->log_state = LOGON_NONE;
59 /* Set the state back to LOGON_NONE. */
60 work->log_state = LOGON_NONE;
62 servrec->serv.type &= ~SV_TYPE_DOMAIN_CTRL;
64 DEBUG(0,("become_logon_server_fail: Failed to become a domain master for \
65 workgroup %s on subnet %s. Couldn't register name %s.\n",
66 work->work_group, subrec->subnet_name, nmb_namestr(fail_name)));
70 /****************************************************************************
71 Become a Logon server on a subnet.
72 ****************************************************************************/
74 static void become_logon_server_success(struct subnet_record *subrec,
75 struct userdata_struct *userdata,
76 struct nmb_name *registered_name,
78 int ttl, struct in_addr registered_ip)
80 struct work_record *work = find_workgroup_on_subnet( subrec, registered_name->name);
81 struct server_record *servrec;
85 DEBUG(0,("become_logon_server_success: Error - cannot find \
86 workgroup %s on subnet %s\n", registered_name->name, subrec->subnet_name));
90 if((servrec = find_server_in_workgroup( work, global_myname)) == NULL)
92 DEBUG(0,("become_logon_server_success: Error - cannot find server %s \
93 in workgroup %s on subnet %s\n",
94 global_myname, registered_name->name, subrec->subnet_name));
95 work->log_state = LOGON_NONE;
99 /* Set the state in the workgroup structure. */
100 work->log_state = LOGON_SRV; /* Become domain master. */
102 /* Update our server status. */
103 servrec->serv.type |= (SV_TYPE_NT|SV_TYPE_DOMAIN_MEMBER);
104 /* To allow Win95 policies to load we need to set type domain
107 servrec->serv.type |= SV_TYPE_DOMAIN_CTRL;
109 /* Tell the namelist writer to write out a change. */
110 subrec->work_changed = True;
112 DEBUG(0,("become_logon_server_success: Samba is now a logon server \
113 for workgroup %s on subnet %s\n", work->work_group, subrec->subnet_name));
116 /*******************************************************************
117 Become a logon server by attempting to register the WORKGROUP<1c>
119 ******************************************************************/
121 static void become_logon_server(struct subnet_record *subrec,
122 struct work_record *work)
124 DEBUG(2,("become_logon_server: Atempting to become logon server for workgroup %s \
125 on subnet %s\n", work->work_group,subrec->subnet_name));
127 DEBUG(3,("become_logon_server: go to first stage: register %s<1c> name\n",
129 work->log_state = LOGON_WAIT;
131 register_name(subrec, work->work_group,0x1c,samba_nb_type|NB_GROUP,
132 become_logon_server_success,
133 become_logon_server_fail, NULL);
136 /*****************************************************************************
137 Add the internet group <1c> logon names by unicast and broadcast.
138 ****************************************************************************/
139 void add_logon_names(void)
141 struct subnet_record *subrec;
143 for (subrec = FIRST_SUBNET; subrec; subrec = NEXT_SUBNET_INCLUDING_UNICAST(subrec))
145 struct work_record *work = find_workgroup_on_subnet(subrec, global_myworkgroup);
147 if (work && (work->log_state == LOGON_NONE))
149 struct nmb_name nmbname;
150 make_nmb_name(&nmbname,global_myworkgroup,0x1c);
152 if (find_name_on_subnet(subrec, &nmbname, FIND_SELF_NAME) == NULL)
156 dbgtext( "add_domain_logon_names:\n" );
157 dbgtext( "Attempting to become logon server " );
158 dbgtext( "for workgroup %s ", global_myworkgroup );
159 dbgtext( "on subnet %s\n", subrec->subnet_name );
161 become_logon_server(subrec, work);