2 * IRC - Internet Relay Chat, ircd/m_gline.c
3 * Copyright (C) 1990 Jarkko Oikarinen and
4 * University of Oulu, Computing Center
6 * See file AUTHORS in IRC package for additional names of
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 1, or (at your option)
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 * m_functions execute protocol messages on this server:
29 * cptr is always NON-NULL, pointing to a *LOCAL* client
30 * structure (with an open socket connected!). This
31 * identifies the physical socket where the message
32 * originated (or which caused the m_function to be
33 * executed--some m_functions may call others...).
35 * sptr is the source of the message, defined by the
36 * prefix part of the message if present. If not
37 * or prefix not found, then sptr==cptr.
39 * (!IsServer(cptr)) => (cptr == sptr), because
40 * prefixes are taken *only* from servers...
43 * (sptr == cptr) => the message didn't
46 * (sptr != cptr && IsServer(sptr) means
47 * the prefix specified servername. (?)
49 * (sptr != cptr && !IsServer(sptr) means
50 * that message originated from a remote
55 * (!IsServer(sptr)) means that, sptr can safely
56 * taken as defining the target structure of the
57 * message in this server.
59 * *Always* true (if 'parse' and others are working correct):
61 * 1) sptr->from == cptr (note: cptr->from == cptr)
63 * 2) MyConnect(sptr) <=> sptr == cptr (e.g. sptr
64 * *cannot* be a local connection, unless it's
65 * actually cptr!). [MyConnect(x) should probably
66 * be defined as (x == x->from) --msa ]
68 * parc number of variable parameter strings (if zero,
69 * parv is allowed to be NULL)
71 * parv a NULL terminated list of parameter pointers,
73 * parv[0], sender (prefix string), if not present
74 * this points to an empty string.
75 * parv[1]...parv[parc-1]
76 * pointers to additional parameters
77 * parv[parc] == NULL, *always*
79 * note: it is guaranteed that parv[0]..parv[parc-1] are all
88 #include "ircd_features.h"
90 #include "ircd_reply.h"
91 #include "ircd_string.h"
100 /* #include <assert.h> -- Now using assert in ircd_log.h */
105 * ms_gline - server message handler
107 * parv[0] = Sender prefix
108 * parv[1] = Target: server numeric
109 * parv[2] = (+|-)<G-line mask>
110 * parv[3] = G-line lifetime
116 * From somewhere else:
118 * parv[4] = Last modification time
123 ms_gline(struct Client *cptr, struct Client *sptr, int parc, char *parv[])
125 struct Client *acptr = 0;
126 struct Gline *agline;
127 unsigned int flags = 0;
128 time_t expire_off, lastmod = 0;
129 char *mask = parv[2], *target = parv[1], *reason = "No reason";
134 flags |= GLINE_OPERFORCE; /* assume oper had WIDE_GLINE */
137 if ((parc == 3 && *mask == '-') || parc == 5)
139 if (!find_conf_byhost(cli_confs(cptr), cli_name(sptr), CONF_UWORLD))
140 return need_more_params(sptr, "GLINE");
144 flags |= GLINE_FORCE;
148 lastmod = atoi(parv[4]);
152 return need_more_params(sptr, "GLINE");
155 flags |= GLINE_FORCE;
157 if (!(target[0] == '*' && target[1] == '\0')) {
158 if (!(acptr = FindNServer(target)))
159 return 0; /* no such server */
161 if (!IsMe(acptr)) { /* manually propagate */
163 sendcmdto_one(sptr, CMD_GLINE, acptr,
164 (parc == 3) ? "%C %s" : "%C %s %s :%s", acptr, mask,
167 sendcmdto_one(sptr, CMD_GLINE, acptr, "%C %s%s %s %s :%s", acptr,
168 flags & GLINE_OPERFORCE ? "!" : "", mask, parv[3],
174 flags |= GLINE_LOCAL;
179 else if (*mask == '+') {
180 flags |= GLINE_ACTIVE;
183 flags |= GLINE_ACTIVE;
185 expire_off = parc < 5 ? 0 : atoi(parv[3]);
187 agline = gline_find(mask, GLINE_ANY | GLINE_EXACT);
190 if (GlineIsLocal(agline) && !(flags & GLINE_LOCAL)) /* global over local */
192 else if (!lastmod && ((flags & GLINE_ACTIVE) == GlineIsRemActive(agline)))
193 return gline_propagate(cptr, sptr, agline);
194 else if (!lastmod || GlineLastMod(agline) < lastmod) { /* new mod */
195 if (flags & GLINE_ACTIVE)
196 return gline_activate(cptr, sptr, agline, lastmod, flags);
198 return gline_deactivate(cptr, sptr, agline, lastmod, flags);
199 } else if (GlineLastMod(agline) == lastmod || IsBurstOrBurstAck(cptr))
202 return gline_resend(cptr, agline); /* other server desynched WRT gline */
203 } else if (parc == 3 && !(flags & GLINE_ACTIVE)) {
204 /* U-lined server removing a G-line we don't have; propagate the removal
207 if (!(flags & GLINE_LOCAL))
208 sendcmdto_serv_butone(sptr, CMD_GLINE, cptr, "* -%s", mask);
211 return need_more_params(sptr, "GLINE");
213 return gline_add(cptr, sptr, mask, reason, expire_off, lastmod, flags);
217 * mo_gline - oper message handler
219 * parv[0] = Sender prefix
220 * parv[1] = [[+|-]<G-line mask>]
222 * Local (to me) style:
224 * parv[2] = [Expiration offset]
225 * parv[3] = [Comment]
227 * Global (or remote local) style:
230 * parv[3] = [Expiration offset]
231 * parv[4] = [Comment]
235 mo_gline(struct Client *cptr, struct Client *sptr, int parc, char *parv[])
237 struct Client *acptr = 0;
238 struct Gline *agline;
239 unsigned int flags = 0;
241 char *mask = parv[1], *target = 0, *reason;
244 return gline_list(sptr, 0);
249 if (HasPriv(sptr, PRIV_WIDE_GLINE))
250 flags |= GLINE_OPERFORCE;
254 flags |= GLINE_ACTIVE;
257 } else if (*mask == '-')
260 return gline_list(sptr, mask);
263 expire_off = atoi(parv[2]);
265 flags |= GLINE_LOCAL;
266 } else if (parc > 4) {
268 expire_off = atoi(parv[3]);
271 return need_more_params(sptr, "GLINE");
275 if (!(target[0] == '*' && target[1] == '\0'))
277 if (!(acptr = find_match_server(target)))
278 return send_reply(sptr, ERR_NOSUCHSERVER, target);
280 /* manually propagate, since we don't set it */
283 if (!feature_bool(FEAT_CONFIG_OPERCMDS))
284 return send_reply(sptr, ERR_DISABLED, "GLINE");
286 if (!HasPriv(sptr, PRIV_GLINE))
287 return send_reply(sptr, ERR_NOPRIVILEGES);
289 sendcmdto_one(sptr, CMD_GLINE, acptr, "%C %s%c%s %s %Tu :%s", acptr,
290 flags & GLINE_OPERFORCE ? "!" : "",
291 flags & GLINE_ACTIVE ? '+' : '-', mask, parv[3],
295 flags |= GLINE_LOCAL;
299 if (!(flags & GLINE_LOCAL) && !feature_bool(FEAT_CONFIG_OPERCMDS))
300 return send_reply(sptr, ERR_DISABLED, "GLINE");
302 if (!HasPriv(sptr, (flags & GLINE_LOCAL ? PRIV_LOCAL_GLINE : PRIV_GLINE)))
303 return send_reply(sptr, ERR_NOPRIVILEGES);
305 agline = gline_find(mask, GLINE_ANY | GLINE_EXACT);
308 if (GlineIsLocal(agline) && !(flags & GLINE_LOCAL)) /* global over local */
311 if (!GlineLastMod(agline)) /* force mods to Uworld-set G-lines local */
312 flags |= GLINE_LOCAL;
314 if (flags & GLINE_ACTIVE)
315 return gline_activate(cptr, sptr, agline,
316 GlineLastMod(agline) ? TStime() : 0, flags);
318 return gline_deactivate(cptr, sptr, agline,
319 GlineLastMod(agline) ? TStime() : 0, flags);
323 return gline_add(cptr, sptr, mask, reason, expire_off, TStime(), flags);
327 * m_gline - user message handler
329 * parv[0] = Sender prefix
330 * parv[1] = [<server name>]
334 m_gline(struct Client *cptr, struct Client *sptr, int parc, char *parv[])
337 return send_reply(sptr, ERR_NOSUCHGLINE, "");
339 return gline_list(sptr, parv[1]);