pissircd/src/modules/netinfo.c

142 lines
3.6 KiB
C

/*
* IRC - Internet Relay Chat, src/modules/out.c
* (C) 2004 The UnrealIRCd Team
*
* See file AUTHORS in IRC package for additional names of
* the programmers.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 1, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "unrealircd.h"
CMD_FUNC(cmd_netinfo);
#define MSG_NETINFO "NETINFO"
ModuleHeader MOD_HEADER
= {
"netinfo",
"5.0",
"command /netinfo",
"UnrealIRCd Team",
"unrealircd-5",
};
MOD_INIT()
{
CommandAdd(modinfo->handle, MSG_NETINFO, cmd_netinfo, MAXPARA, CMD_SERVER);
MARK_AS_OFFICIAL_MODULE(modinfo);
return MOD_SUCCESS;
}
MOD_LOAD()
{
return MOD_SUCCESS;
}
MOD_UNLOAD()
{
return MOD_SUCCESS;
}
/** NETINFO: Share configuration settings with directly linked server.
* Originally written by Stskeeps
*
* Technical documentation:
* https://www.unrealircd.org/docs/Server_protocol:NETINFO_command
*
* parv[1] = max global count
* parv[2] = time of end sync
* parv[3] = unreal protocol using (numeric)
* parv[4] = cloak-crc (> u2302)
* parv[5] = free(**)
* parv[6] = free(**)
* parv[7] = free(**)
* parv[8] = network name
*/
CMD_FUNC(cmd_netinfo)
{
long lmax;
time_t xx;
long endsync, protocol;
char buf[512];
if (parc < 9)
return;
/* Only allow from directly connected servers */
if (!MyConnect(client))
return;
if (IsNetInfo(client))
{
sendto_realops("Already got NETINFO from Link %s", client->name);
return;
}
/* is a long therefore not ATOI */
lmax = atol(parv[1]);
endsync = atol(parv[2]);
protocol = atol(parv[3]);
/* max global count != max_global_count --sts */
if (lmax > irccounts.global_max)
{
irccounts.global_max = lmax;
sendto_realops("Max Global Count is now %li (set by link %s)",
lmax, client->name);
}
xx = TStime();
if ((xx - endsync) < -2)
{
char *emsg = "";
if (xx - endsync < -10)
{
emsg = " [\002PLEASE SYNC YOUR CLOCKS!\002]";
}
sendto_umode_global(UMODE_OPER,
"Possible negative TS split at link %s (%lld - %lld = %lld)%s",
client->name, (long long)(xx), (long long)(endsync), (long long)(xx - endsync), emsg);
}
sendto_umode_global(UMODE_OPER,
"Link %s -> %s is now synced [secs: %lld recv: %ld.%hu sent: %ld.%hu]",
client->name, me.name, (long long)(TStime() - endsync), client->local->receiveK,
client->local->receiveB, client->local->sendK, client->local->sendB);
if (!(strcmp(ircnetwork, parv[8]) == 0))
{
sendto_umode_global(UMODE_OPER,
"Network name mismatch from link %s (%s != %s)",
client->name, parv[8], ircnetwork);
}
if ((protocol != UnrealProtocol) && (protocol != 0))
{
sendto_umode_global(UMODE_OPER,
"Link %s is running Protocol %li while %s is running %d",
client->name, protocol, me.name, UnrealProtocol);
}
strlcpy(buf, CLOAK_KEYCRC, sizeof(buf));
if (*parv[4] != '*' && strcmp(buf, parv[4]))
{
sendto_realops
("Link %s has a DIFFERENT CLOAK KEY - %s != %s. \002YOU SHOULD CORRECT THIS ASAP\002.",
client->name, parv[4], buf);
}
SetNetInfo(client);
}