2 Unix SMB/Netbios implementation.
4 NBT netbios routines and daemon - version 2
5 Copyright (C) David Chappell 1996-1997
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23 30 July 96: David.Chappell@mail.trincoll.edu
24 Expanded multiple workgroup domain master browser support.
30 ** These functions dispense information from smbbrowse.conf.
36 extern int DEBUGLEVEL;
38 extern fstring myworkgroup;
41 struct smbbrowse_parms
44 BOOL (*reader)(char *string, void *toset);
47 {"preferred master", NULL},
48 {"local master", NULL},
49 {"domain master", NULL}
54 ** Structure for the list of workgroups from smbbrowse.conf. This
55 ** structure should only be manipulated thru the functions in this file.
56 ** That is why it is not defined in a header file.
60 char work_name[16]; /* workgroup name */
61 char browsing_alias[16]; /* alias for our role in this workgroup */
62 struct server_identity *my_names; /* a list of server name we should appear here as */
63 BOOL should_workgroup_member; /* should we try to become a member of this workgroup? */
64 BOOL should_local_master; /* should we try to become a master browser? */
65 BOOL should_domain_master; /* should we try to become the domain master browser? */
69 static struct smbbrowse *smbbrowse_workgroups = (struct smbbrowse*)NULL;
71 /* The size of the list */
72 static int array_size = 0;
74 /* The next available space in the list */
75 static int nexttoken = 0;
77 int get_num_workgroups(void)
83 ** This makes a new workgroup structure, possibly taking an
84 ** old one as a model.
86 static struct smbbrowse *new_workgroup(struct smbbrowse *model,
90 struct smbbrowse *new;
92 if( ! (array_size > nexttoken) )
95 smbbrowse_workgroups = (struct smbbrowse*)realloc(smbbrowse_workgroups,
96 array_size * sizeof(struct smbbrowse));
99 new = &smbbrowse_workgroups[nexttoken];
101 if(model != (struct smbbrowse *)NULL )
102 memcpy(new, model, sizeof(struct smbbrowse));
104 memset(new, 0, sizeof(struct smbbrowse));
106 StrnCpy(new->work_name, workgroup_name, 15);
107 strupper(new->work_name);
109 if (strequal(myworkgroup, workgroup_name))
110 StrnCpy(new->browsing_alias, default_name, 15);
112 sprintf(new->browsing_alias, "%.14s%x", default_name, nexttoken);
113 strupper(new->browsing_alias);
115 DEBUG(4,("wg: %s alias: %s token: %x\n",
116 new->work_name, new->browsing_alias, nexttoken));
123 ** If fed a workgroup name, this function returns its token number.
124 ** If the workgroup does not exist a new token is assigned unless
125 ** new workgroups are not allowed.
127 int conf_workgroup_name_to_token(char *workgroup_name,char *default_name)
131 /* Look for an existing instance. */
132 for(idx=0; idx < nexttoken; idx++)
134 if(strequal(workgroup_name, smbbrowse_workgroups[idx].work_name))
140 /* See if creating new ones in admissable. */
141 for(idx=0; idx < nexttoken; idx++)
143 if(strequal("*", smbbrowse_workgroups[idx].work_name))
145 struct smbbrowse *w = new_workgroup(&smbbrowse_workgroups[idx],
146 workgroup_name, default_name);
147 w->should_workgroup_member = False;
149 return (nexttoken - 1);
154 DEBUG(4, ("refusing to allow new workgroup\n"));
159 ** This is a workgroups array bounds checker.
161 static int range_check(int token)
163 if(token < 0 || token >= nexttoken)
165 DEBUG(0, ("range_check(): failed\n"));
173 ** Given a token, return the name.
175 char *conf_workgroup_name(int token)
177 if(range_check(token))
180 return smbbrowse_workgroups[token].work_name;
184 ** Given a token, return True if we should try
185 ** to become a master browser.
187 int conf_should_workgroup_member(int token)
190 if(range_check(token))
193 return smbbrowse_workgroups[token].should_workgroup_member;
197 ** Given a token, return True if we should try
198 ** to become a master browser.
200 int conf_should_local_master(int token)
202 if(range_check(token))
205 return smbbrowse_workgroups[token].should_local_master;
209 ** Given a token, return True if we should try
210 ** to become a domain master browser.
212 int conf_should_domain_master(int token)
214 if(range_check(token))
217 return smbbrowse_workgroups[token].should_domain_master;
221 ** Given a token, return the name.
223 char *conf_browsing_alias(int token)
225 if(range_check(token))
228 return smbbrowse_workgroups[token].browsing_alias;
232 ** Return the server comment which should be used with the
235 char *conf_browsing_alias_comment(int token)
237 if(range_check(token))
244 ** Given an alias name for this server, return the name of the workgroup
245 ** for which it is the browsing alias.
247 char *conf_alias_to_workgroup(char *alias)
251 DEBUG(4,("alias_to_workgroup: %s", alias));
253 for(x=0; x < nexttoken; x++)
255 DEBUG(4,("%s ", smbbrowse_workgroups[x].browsing_alias));
257 if(strequal(alias, smbbrowse_workgroups[x].browsing_alias))
260 return smbbrowse_workgroups[x].work_name;
263 DEBUG(4,("not found\n"));
268 ** Given an alias name for this server, return the name of the workgroup
269 ** for which it is the browsing alias.
271 int conf_alias_to_token(char *alias)
275 for(x=0; x < nexttoken; x++)
277 if(strequal(alias, smbbrowse_workgroups[x].browsing_alias))
286 ** Since there is no smbbrowse.conf file, we will fill in
287 ** the structures with information from the smb.conf file.
289 static void default_smbbrowse_conf(char *default_name)
293 /* The workgroup specified in smb.conf */
294 w = new_workgroup((struct smbbrowse *)NULL, myworkgroup, default_name);
295 w->should_local_master = lp_preferred_master();
296 w->should_domain_master = lp_domain_master();
297 w->should_workgroup_member = True;
299 /* default action: allow any new workgroup to be added */
300 w = new_workgroup((struct smbbrowse *)NULL, "*", default_name);
301 w->should_local_master = False;
302 w->should_domain_master = False;
303 w->should_workgroup_member = False;
307 ** This function is called from main().
309 void read_smbbrowse_conf(char *default_name)
311 FILE *f = fopen(BROWSEFILE,"r");
323 if (!fgets_slash(line,sizeof(pstring),f)) continue;
325 if (*line == '#') continue;
327 strcpy(work_name,"");
331 if (next_token(&ptr, work_name, NULL)) ++count;
333 if (count <= 0) continue;
335 w = new_workgroup((struct smbbrowse *)NULL, work_name, default_name);
336 w->should_local_master = lp_local_master();
337 w->should_domain_master = lp_domain_master();
338 w->should_workgroup_member = True;
345 DEBUG(2,("Can't open browse configuration file %s\n",BROWSEFILE));
347 default_smbbrowse_conf(default_name);