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;
29 extern char **my_netbios_names;
30 extern pstring myname;
31 extern fstring myworkgroup;
34 extern uint16 samba_nb_type; /* Samba's NetBIOS type. */
36 /****************************************************************************
37 Fail funtion when registering my netbios names.
38 **************************************************************************/
40 static void my_name_register_failed(struct subnet_record *subrec,
41 struct response_record *rrec, struct nmb_name *nmbname)
43 DEBUG(0,("my_name_register_failed: Failed to register my name %s on subnet %s.\n",
44 namestr(nmbname), subrec->subnet_name));
47 /****************************************************************************
48 Add my workgroup and my given names to the subnet lists.
49 Also add the magic Samba names.
50 **************************************************************************/
52 BOOL register_my_workgroup_and_names()
54 struct subnet_record *subrec;
55 struct work_record *work;
58 for(subrec = FIRST_SUBNET; subrec; subrec = NEXT_SUBNET_INCLUDING_UNICAST(subrec))
60 /* Create the workgroup on the subnet. */
61 if((work = create_workgroup_on_subnet(subrec, myworkgroup, PERMANENT_TTL)) == NULL)
63 DEBUG(0,("register_my_workgroup_and_names: Failed to create my workgroup %s on subnet %s. \
64 Exiting.\n", myworkgroup, subrec->subnet_name));
68 /* Each subnet entry, except for the remote_announce_broadcast subnet
69 and the wins_server_subnet has the magic Samba names. */
70 add_samba_names_to_subnet(subrec);
72 /* Register all our names including aliases. */
73 for (i=0; my_netbios_names[i]; i++)
75 register_name(subrec, my_netbios_names[i],0x20,samba_nb_type,
77 my_name_register_failed, NULL);
78 register_name(subrec, my_netbios_names[i],0x03,samba_nb_type,
80 my_name_register_failed, NULL);
81 register_name(subrec, my_netbios_names[i],0x00,samba_nb_type,
83 my_name_register_failed, NULL);
86 /* Initiate election processing, register the workgroup names etc. */
87 initiate_myworkgroup_startup(subrec, work);
90 /* If we are not a WINS client, we still need to add the magic Samba
91 names and the netbios names to the unicast subnet directly. This is
92 to allow unicast node status requests and queries to still work
93 in a broadcast only environment. */
95 if(we_are_a_wins_client() == False)
97 add_samba_names_to_subnet(unicast_subnet);
99 for (i=0; my_netbios_names[i]; i++)
101 for(subrec = FIRST_SUBNET; subrec; subrec = NEXT_SUBNET_EXCLUDING_UNICAST(subrec))
104 * Ensure all the IP addresses are added if we are multihomed.
106 struct nmb_name nmbname;
108 make_nmb_name(&nmbname, my_netbios_names[i],0x20, scope);
109 insert_permanent_name_into_unicast(subrec, &nmbname, samba_nb_type);
111 make_nmb_name(&nmbname, my_netbios_names[i],0x3, scope);
112 insert_permanent_name_into_unicast(subrec, &nmbname, samba_nb_type);
114 make_nmb_name(&nmbname, my_netbios_names[i],0x0, scope);
115 insert_permanent_name_into_unicast(subrec, &nmbname, samba_nb_type);
120 * Add the WORKGROUP<0> and WORKGROUP<1e> group names to the unicast subnet
121 * also for the same reasons.
124 for(subrec = FIRST_SUBNET; subrec; subrec = NEXT_SUBNET_EXCLUDING_UNICAST(subrec))
127 * Ensure all the IP addresses are added if we are multihomed.
129 struct nmb_name nmbname;
131 make_nmb_name(&nmbname, myworkgroup, 0x0, scope);
132 insert_permanent_name_into_unicast(subrec, &nmbname, samba_nb_type|NB_GROUP);
134 make_nmb_name(&nmbname, myworkgroup, 0x1e, scope);
135 insert_permanent_name_into_unicast(subrec, &nmbname, samba_nb_type|NB_GROUP);
142 /****************************************************************************
143 Remove all the names we registered.
144 **************************************************************************/
146 void release_my_names()
148 struct subnet_record *subrec;
150 for (subrec = FIRST_SUBNET; subrec; subrec = NEXT_SUBNET_INCLUDING_UNICAST(subrec))
152 struct name_record *namerec, *nextnamerec;
154 for (namerec = subrec->namelist; namerec; namerec = nextnamerec)
156 nextnamerec = namerec->next;
157 if ((namerec->source == SELF_NAME) && !NAME_IS_DEREGISTERING(namerec))
158 release_name(subrec, namerec, standard_success_release,
164 /*******************************************************************
165 Refresh our registered names.
166 ******************************************************************/
168 void refresh_my_names(time_t t)
170 struct subnet_record *subrec;
172 for (subrec = FIRST_SUBNET; subrec; subrec = NEXT_SUBNET_INCLUDING_UNICAST(subrec))
174 struct name_record *namerec;
176 for (namerec = subrec->namelist; namerec; namerec = namerec->next)
178 /* Each SELF name has an individual time to be refreshed. */
179 if ((namerec->source == SELF_NAME) && (namerec->refresh_time < t) &&
180 (namerec->death_time != PERMANENT_TTL))
182 /* We cheat here and pretend the refresh is going to be
183 successful & update the refresh times. This stops
184 multiple refresh calls being done. We actually
185 deal with refresh failure in the fail_fn.
187 if(!is_refresh_already_queued( subrec, namerec))
188 refresh_name(subrec, namerec, NULL, NULL, NULL);
189 namerec->death_time += lp_max_ttl();
190 namerec->refresh_time += lp_max_ttl();