2 * IRC - Internet Relay Chat, ircd/s_serv.c (formerly ircd/s_msg.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.
34 #include "ircd_alloc.h"
35 #include "ircd_reply.h"
36 #include "ircd_string.h"
37 #include "ircd_snprintf.h"
38 #include "ircd_xopen.h"
47 #include "querycmds.h"
62 unsigned int max_connection_count = 0;
63 unsigned int max_client_count = 0;
65 int exit_new_server(struct Client *cptr, struct Client *sptr, const char *host,
66 time_t timestamp, const char *pattern, ...)
71 vd.vd_format = pattern;
72 va_start(vd.vd_args, pattern);
75 retval = vexit_client_msg(cptr, cptr, &me, pattern, vd.vd_args);
77 sendcmdto_one(&me, CMD_SQUIT, cptr, "%s %Tu :%v", host, timestamp, &vd);
84 int a_kills_b_too(struct Client *a, struct Client *b)
86 for (; b != a && b != &me; b = cli_serv(b)->up);
87 return (a == b ? 1 : 0);
93 * May only be called after a SERVER was received from cptr,
94 * and thus make_server was called, and serv->prot set. --Run
96 int server_estab(struct Client *cptr, struct ConfItem *aconf)
98 struct Client* acptr = 0;
103 assert(0 != cli_local(cptr));
105 split = (0 != ircd_strcmp(cli_name(cptr), cli_sockhost(cptr))
106 && 0 != ircd_strncmp(cli_info(cptr), "JUPE", 4));
107 inpath = cli_name(cptr);
109 if (IsUnknown(cptr)) {
110 if (aconf->passwd[0])
111 sendrawto_one(cptr, MSG_PASS " :%s", aconf->passwd);
113 * Pass my info to the new server
115 sendrawto_one(cptr, MSG_SERVER " %s 1 %Tu %Tu J%s %s%s +%s :%s",
116 cli_name(&me), cli_serv(&me)->timestamp,
117 cli_serv(cptr)->timestamp, MAJOR_PROTOCOL, NumServCap(&me),
118 feature_bool(FEAT_HUB) ? "h" : "",
119 *(cli_info(&me)) ? cli_info(&me) : "IRCers United");
121 * Don't charge this IP# for connecting
122 * XXX - if this comes from a server port, it will not have been added
123 * to the IP check registry, see add_connection in s_bsd.c
125 IPcheck_connect_fail(cli_ip(cptr));
128 det_confs_butmask(cptr, CONF_LEAF | CONF_HUB | CONF_SERVER | CONF_UWORLD);
130 if (!IsHandshake(cptr))
133 cli_handler(cptr) = SERVER_HANDLER;
134 Count_unknownbecomesserver(UserStats);
136 release_dns_reply(cptr);
140 /* nextping = CurrentTime; */
143 * NOTE: check for acptr->user == cptr->serv->user is necessary to insure
144 * that we got the same one... bleah
146 if (cli_serv(cptr)->user && *(cli_serv(cptr))->by &&
147 (acptr = findNUser(cli_serv(cptr)->by))) {
148 if (cli_user(acptr) == cli_serv(cptr)->user) {
149 sendcmdto_one(&me, CMD_NOTICE, acptr, "%C :Link with %s established.",
154 * if not the same client, set by to empty string
157 *(cli_serv(cptr))->by = '\0';
161 sendto_opmask_butone(acptr, SNO_OLDSNO, "Link with %s established.", inpath);
162 cli_serv(cptr)->up = &me;
163 cli_serv(cptr)->updown = add_dlink(&(cli_serv(&me))->down, cptr);
164 sendto_opmask_butone(0, SNO_NETWORK, "Net junction: %s %s", cli_name(&me),
168 * Old sendto_serv_but_one() call removed because we now
169 * need to send different names to different servers
170 * (domain name matching) Send new server to other servers.
172 for (i = 0; i <= HighestFd; i++)
174 if (!(acptr = LocalClientArray[i]) || !IsServer(acptr) ||
175 acptr == cptr || IsMe(acptr))
177 if (!match(cli_name(&me), cli_name(cptr)))
179 sendcmdto_one(&me, CMD_SERVER, acptr,
180 "%s 2 0 %Tu J%02u %s%s +%s%s :%s", cli_name(cptr),
181 cli_serv(cptr)->timestamp, Protocol(cptr), NumServCap(cptr),
182 IsHub(cptr) ? "h" : "", IsService(cptr) ? "s" : "",
187 * Pass on my client information to the new server
189 * First, pass only servers (idea is that if the link gets
190 * cancelled beacause the server was already there,
191 * there are no NICK's to be cancelled...). Of course,
192 * if cancellation occurs, all this info is sent anyway,
193 * and I guess the link dies when a read is attempted...? --msa
195 * Note: Link cancellation to occur at this point means
196 * that at least two servers from my fragment are building
197 * up connection this other fragment at the same time, it's
198 * a race condition, not the normal way of operation...
201 for (acptr = &me; acptr; acptr = cli_prev(acptr)) {
202 /* acptr->from == acptr for acptr == cptr */
203 if (cli_from(acptr) == cptr)
205 if (IsServer(acptr)) {
206 const char* protocol_str;
208 if (Protocol(acptr) > 9)
209 protocol_str = IsBurst(acptr) ? "J" : "P";
211 protocol_str = IsBurst(acptr) ? "J0" : "P0";
213 if (0 == match(cli_name(&me), cli_name(acptr)))
215 split = (MyConnect(acptr) &&
216 0 != ircd_strcmp(cli_name(acptr), cli_sockhost(acptr)) &&
217 0 != ircd_strncmp(cli_info(acptr), "JUPE", 4));
218 sendcmdto_one(cli_serv(acptr)->up, CMD_SERVER, cptr,
219 "%s %d 0 %Tu %s%u %s%s +%s%s :%s", cli_name(acptr),
220 cli_hopcount(acptr) + 1, cli_serv(acptr)->timestamp,
221 protocol_str, Protocol(acptr), NumServCap(acptr),
222 IsHub(acptr) ? "h" : "", IsService(acptr) ? "s" : "",
227 for (acptr = &me; acptr; acptr = cli_prev(acptr))
229 /* acptr->from == acptr for acptr == cptr */
230 if (cli_from(acptr) == cptr)
235 char *s = umode_str(acptr);
236 sendcmdto_one(cli_user(acptr)->server, CMD_NICK, cptr,
237 "%s %d %Tu %s %s %s%s%s%s %s%s :%s",
238 cli_name(acptr), cli_hopcount(acptr) + 1, cli_lastnick(acptr),
239 cli_user(acptr)->username, cli_user(acptr)->host,
240 *s ? "+" : "", s, *s ? " " : "",
241 inttobase64(xxx_buf, ntohl(cli_ip(acptr).s_addr), 6),
242 NumNick(acptr), cli_info(acptr));
246 * Last, send the BURST.
247 * (Or for 2.9 servers: pass all channels plus statuses)
250 struct Channel *chptr;
251 for (chptr = GlobalChannelList; chptr; chptr = chptr->next)
252 send_channel_modes(cptr, chptr);
256 sendcmdto_one(&me, CMD_END_OF_BURST, cptr, "");