2 Unix SMB/Netbios implementation.
4 NBT netbios routines and daemon - version 2
5 Copyright (C) David Chappell 1996
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;
39 struct smbbrowse_parms
42 BOOL (*reader)(char *string, void *toset);
45 {"preferred master", NULL},
46 {"local master", NULL},
47 {"domain master", NULL}
52 ** Structure for the list of workgroups from smbbrowse.conf. This
53 ** structure should only be manipulated thru the functions in this file.
54 ** That is why it is not defined in a header file.
58 char work_name[16]; /* workgroup name */
59 char browsing_alias[16]; /* alias for our role in this workgroup */
60 struct server_identity *my_names; /* a list of server name we should appear here as */
61 BOOL should_workgroup_member; /* should we try to become a member of this workgroup? */
62 BOOL should_local_master; /* should we try to become a master browser? */
63 BOOL should_domain_master; /* should we try to become the domain master browser? */
67 static struct smbbrowse *smbbrowse_workgroups = (struct smbbrowse*)NULL;
69 /* The size of the list */
70 static int array_size = 0;
72 /* The next available space in the list */
73 static int nexttoken = 0;
75 int get_num_workgroups(void)
81 ** This makes a new workgroup structure, possibly taking an
82 ** old one as a model.
84 static struct smbbrowse *new_workgroup(struct smbbrowse *model,
88 struct smbbrowse *new;
90 if( ! (array_size > nexttoken) )
93 smbbrowse_workgroups = (struct smbbrowse*)realloc(smbbrowse_workgroups,
94 array_size * sizeof(struct smbbrowse));
97 new = &smbbrowse_workgroups[nexttoken];
99 if(model != (struct smbbrowse *)NULL )
100 memcpy(new, model, sizeof(struct smbbrowse));
102 memset(new, 0, sizeof(struct smbbrowse));
104 StrnCpy(new->work_name, workgroup_name, 15);
105 strupper(new->work_name);
107 if (strequal(lp_workgroup(), workgroup_name))
108 StrnCpy(new->browsing_alias, default_name, 15);
110 sprintf(new->browsing_alias, "%.14s%x", default_name, nexttoken);
111 strupper(new->browsing_alias);
113 DEBUG(4,("wg: %s alias: %s token: %x\n",
114 new->work_name, new->browsing_alias, nexttoken));
121 ** If fed a workgroup name, this function returns its token number.
122 ** If the workgroup does not exist a new token is assigned unless
123 ** new workgroups are not allowed.
125 int conf_workgroup_name_to_token(char *workgroup_name,char *default_name)
129 /* Look for an existing instance. */
130 for(idx=0; idx < nexttoken; idx++)
132 if(strequal(workgroup_name, smbbrowse_workgroups[idx].work_name))
138 /* See if creating new ones in admissable. */
139 for(idx=0; idx < nexttoken; idx++)
141 if(strequal("*", smbbrowse_workgroups[idx].work_name))
143 struct smbbrowse *w = new_workgroup(&smbbrowse_workgroups[idx],
144 workgroup_name, default_name);
145 w->should_workgroup_member = False;
147 return (nexttoken - 1);
152 DEBUG(4, ("refusing to allow new workgroup\n"));
157 ** This is a workgroups array bounds checker.
159 static int range_check(int token)
161 if(token < 0 || token >= nexttoken)
163 DEBUG(0, ("range_check(): failed\n"));
171 ** Given a token, return the name.
173 char *conf_workgroup_name(int token)
175 if(range_check(token))
178 return smbbrowse_workgroups[token].work_name;
182 ** Given a token, return True if we should try
183 ** to become a master browser.
185 int conf_should_workgroup_member(int token)
188 if(range_check(token))
191 return smbbrowse_workgroups[token].should_workgroup_member;
195 ** Given a token, return True if we should try
196 ** to become a master browser.
198 int conf_should_local_master(int token)
200 if(range_check(token))
203 return smbbrowse_workgroups[token].should_local_master;
207 ** Given a token, return True if we should try
208 ** to become a domain master browser.
210 int conf_should_domain_master(int token)
212 if(range_check(token))
215 return smbbrowse_workgroups[token].should_domain_master;
219 ** Given a token, return the name.
221 char *conf_browsing_alias(int token)
223 if(range_check(token))
226 return smbbrowse_workgroups[token].browsing_alias;
230 ** Return the server comment which should be used with the
233 char *conf_browsing_alias_comment(int token)
235 if(range_check(token))
242 ** Given an alias name for this server, return the name of the workgroup
243 ** for which it is the browsing alias.
245 char *conf_alias_to_workgroup(char *alias)
249 DEBUG(4,("alias_to_workgroup: %s", alias));
251 for(x=0; x < nexttoken; x++)
253 DEBUG(4,("%s ", smbbrowse_workgroups[x].browsing_alias));
255 if(strequal(alias, smbbrowse_workgroups[x].browsing_alias))
258 return smbbrowse_workgroups[x].work_name;
261 DEBUG(4,("not found\n"));
266 ** Given an alias name for this server, return the name of the workgroup
267 ** for which it is the browsing alias.
269 int conf_alias_to_token(char *alias)
273 for(x=0; x < nexttoken; x++)
275 if(strequal(alias, smbbrowse_workgroups[x].browsing_alias))
284 ** Since there is no smbbrowse.conf file, we will fill in
285 ** the structures with information from the smb.conf file.
287 static void default_smbbrowse_conf(char *default_name)
291 /* The workgroup specified in smb.conf */
292 w = new_workgroup((struct smbbrowse *)NULL, lp_workgroup(), default_name);
293 w->should_local_master = lp_preferred_master();
294 w->should_domain_master = lp_domain_master();
295 w->should_workgroup_member = True;
297 /* default action: allow any new workgroup to be added */
298 w = new_workgroup((struct smbbrowse *)NULL, "*", default_name);
299 w->should_local_master = False;
300 w->should_domain_master = False;
301 w->should_workgroup_member = False;
305 ** This function is called from main().
307 void read_smbbrowse_conf(char *default_name)
309 FILE *f = fopen(BROWSEFILE,"r");
321 if (!fgets_slash(line,sizeof(pstring),f)) continue;
323 if (*line == '#') continue;
325 strcpy(work_name,"");
329 if (next_token(&ptr, work_name, NULL)) ++count;
331 if (count <= 0) continue;
333 w = new_workgroup((struct smbbrowse *)NULL, work_name, default_name);
334 w->should_local_master = lp_local_master();
335 w->should_domain_master = lp_domain_master();
336 w->should_workgroup_member = True;
343 DEBUG(2,("Can't open browse configuration file %s\n",BROWSEFILE));
345 default_smbbrowse_conf(default_name);