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 fstring global_myworkgroup;
33 extern uint16 samba_nb_type; /* Samba's NetBIOS type. */
35 /****************************************************************************
36 Fail funtion when registering my netbios names.
37 **************************************************************************/
39 static void my_name_register_failed(struct subnet_record *subrec,
40 struct response_record *rrec, struct nmb_name *nmbname)
42 DEBUG(0,("my_name_register_failed: Failed to register my name %s on subnet %s.\n",
43 namestr(nmbname), subrec->subnet_name));
46 /****************************************************************************
47 Add my workgroup and my given names to the subnet lists.
48 Also add the magic Samba names.
49 **************************************************************************/
51 BOOL register_my_workgroup_and_names(void)
53 struct subnet_record *subrec;
54 struct work_record *work;
57 for(subrec = FIRST_SUBNET; subrec; subrec = NEXT_SUBNET_INCLUDING_UNICAST(subrec))
59 /* Create the workgroup on the subnet. */
60 if((work = create_workgroup_on_subnet(subrec, global_myworkgroup, PERMANENT_TTL)) == NULL)
62 DEBUG(0,("register_my_workgroup_and_names: Failed to create my workgroup %s on subnet %s. \
63 Exiting.\n", global_myworkgroup, subrec->subnet_name));
67 /* Each subnet entry, except for the remote_announce_broadcast subnet
68 and the wins_server_subnet has the magic Samba names. */
69 add_samba_names_to_subnet(subrec);
71 /* Register all our names including aliases. */
72 for (i=0; my_netbios_names[i]; i++)
74 register_name(subrec, my_netbios_names[i],0x20,samba_nb_type,
76 my_name_register_failed, NULL);
77 register_name(subrec, my_netbios_names[i],0x03,samba_nb_type,
79 my_name_register_failed, NULL);
80 register_name(subrec, my_netbios_names[i],0x00,samba_nb_type,
82 my_name_register_failed, NULL);
85 /* Initiate election processing, register the workgroup names etc. */
86 initiate_myworkgroup_startup(subrec, work);
89 /* If we are not a WINS client, we still need to add the magic Samba
90 names and the netbios names to the unicast subnet directly. This is
91 to allow unicast node status requests and queries to still work
92 in a broadcast only environment. */
94 if(we_are_a_wins_client() == False)
96 add_samba_names_to_subnet(unicast_subnet);
98 for (i=0; my_netbios_names[i]; i++)
100 for(subrec = FIRST_SUBNET; subrec; subrec = NEXT_SUBNET_EXCLUDING_UNICAST(subrec))
103 * Ensure all the IP addresses are added if we are multihomed.
105 struct nmb_name nmbname;
107 make_nmb_name(&nmbname, my_netbios_names[i],0x20, scope);
108 insert_permanent_name_into_unicast(subrec, &nmbname, samba_nb_type);
110 make_nmb_name(&nmbname, my_netbios_names[i],0x3, scope);
111 insert_permanent_name_into_unicast(subrec, &nmbname, samba_nb_type);
113 make_nmb_name(&nmbname, my_netbios_names[i],0x0, scope);
114 insert_permanent_name_into_unicast(subrec, &nmbname, samba_nb_type);
119 * Add the WORKGROUP<0> and WORKGROUP<1e> group names to the unicast subnet
120 * also for the same reasons.
123 for(subrec = FIRST_SUBNET; subrec; subrec = NEXT_SUBNET_EXCLUDING_UNICAST(subrec))
126 * Ensure all the IP addresses are added if we are multihomed.
128 struct nmb_name nmbname;
130 make_nmb_name(&nmbname, global_myworkgroup, 0x0, scope);
131 insert_permanent_name_into_unicast(subrec, &nmbname, samba_nb_type|NB_GROUP);
133 make_nmb_name(&nmbname, global_myworkgroup, 0x1e, scope);
134 insert_permanent_name_into_unicast(subrec, &nmbname, samba_nb_type|NB_GROUP);
141 /****************************************************************************
142 Remove all the names we registered.
143 **************************************************************************/
145 void release_my_names(void)
147 struct subnet_record *subrec;
149 for (subrec = FIRST_SUBNET; subrec; subrec = NEXT_SUBNET_INCLUDING_UNICAST(subrec))
151 struct name_record *namerec, *nextnamerec;
153 for (namerec = subrec->namelist; namerec; namerec = nextnamerec)
155 nextnamerec = namerec->next;
156 if ((namerec->source == SELF_NAME) && !NAME_IS_DEREGISTERING(namerec))
157 release_name(subrec, namerec, standard_success_release,
163 /*******************************************************************
164 Refresh our registered names.
165 ******************************************************************/
167 void refresh_my_names(time_t t)
169 struct subnet_record *subrec;
171 for (subrec = FIRST_SUBNET; subrec; subrec = NEXT_SUBNET_INCLUDING_UNICAST(subrec))
173 struct name_record *namerec;
175 for (namerec = subrec->namelist; namerec; namerec = namerec->next)
177 /* Each SELF name has an individual time to be refreshed. */
178 if ((namerec->source == SELF_NAME) && (namerec->refresh_time < t) &&
179 (namerec->death_time != PERMANENT_TTL))
181 /* We cheat here and pretend the refresh is going to be
182 successful & update the refresh times. This stops
183 multiple refresh calls being done. We actually
184 deal with refresh failure in the fail_fn.
186 if(!is_refresh_already_queued( subrec, namerec))
187 refresh_name(subrec, namerec, NULL, NULL, NULL);
188 namerec->death_time += lp_max_ttl();
189 namerec->refresh_time += lp_max_ttl();