2 * ircd-ratbox: A slightly useful ircd.
3 * m_svinfo.c: Sends TS information for clock & compatibility checks.
5 * Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center
6 * Copyright (C) 1996-2002 Hybrid Development Team
7 * Copyright (C) 2002-2005 ircd-ratbox development team
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307
31 #include "s_newconf.h"
37 static const char svinfo_desc
[] =
38 "Provides TS6 SVINFO command to ensure version and clock synchronisation";
40 static void ms_svinfo(struct MsgBuf
*, struct Client
*, struct Client
*, int, const char **);
41 struct Message svinfo_msgtab
= {
43 {mg_unreg
, mg_ignore
, mg_ignore
, {ms_svinfo
, 5}, mg_ignore
, mg_ignore
}
46 mapi_clist_av1 svinfo_clist
[] = { &svinfo_msgtab
, NULL
};
47 DECLARE_MODULE_AV2(svinfo
, NULL
, NULL
, svinfo_clist
, NULL
, NULL
, NULL
, NULL
, svinfo_desc
);
50 * ms_svinfo - SVINFO message handler
51 * parv[1] = TS_CURRENT for the server
52 * parv[2] = TS_MIN for the server
53 * parv[3] = unused, send 0
54 * parv[4] = server's idea of UTC time
57 ms_svinfo(struct MsgBuf
*msgbuf_p
, struct Client
*client_p
, struct Client
*source_p
, int parc
, const char *parv
[])
61 char squitreason
[120];
63 /* SVINFO isnt remote. */
64 if(source_p
!= client_p
)
67 if(TS_CURRENT
< atoi(parv
[2]) || atoi(parv
[1]) < TS_MIN
)
69 /* TS version is too low on one of the sides, drop the link */
70 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
71 "Link %s dropped, wrong TS protocol version (%s,%s)",
72 source_p
->name
, parv
[1], parv
[2]);
73 snprintf(squitreason
, sizeof squitreason
, "Incompatible TS version (%s,%s)",
75 exit_client(source_p
, source_p
, source_p
, squitreason
);
80 * since we're here, might as well set rb_current_time() while we're at it
83 theirtime
= atol(parv
[4]);
84 deltat
= labs(theirtime
- rb_current_time());
86 if(deltat
> ConfigFileEntry
.ts_max_delta
)
88 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
89 "Link %s dropped, excessive TS delta"
90 " (my TS=%ld, their TS=%ld, delta=%ld)",
92 (long) rb_current_time(), (long) theirtime
, deltat
);
94 "Link %s dropped, excessive TS delta"
95 " (my TS=%ld, their TS=%ld, delta=%ld)",
96 log_client_name(source_p
, SHOW_IP
), (long) rb_current_time(), (long) theirtime
, deltat
);
97 snprintf(squitreason
, sizeof squitreason
, "Excessive TS delta (my TS=%ld, their TS=%ld, delta=%ld)",
98 (long) rb_current_time(), (long) theirtime
, deltat
);
99 disable_server_conf_autoconn(source_p
->name
);
100 exit_client(source_p
, source_p
, source_p
, squitreason
);
104 if(deltat
> ConfigFileEntry
.ts_warn_delta
)
106 sendto_realops_snomask(SNO_GENERAL
, L_NETWIDE
,
107 "Link %s notable TS delta"
108 " (my TS=%ld, their TS=%ld, delta=%ld)",
109 source_p
->name
, (long) rb_current_time(), (long) theirtime
, deltat
);