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Server links: detect RFC 1459 mode direct after SERVER command

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This patch allows ngIRCd to detect right after receiving the SERVER command
from the peer whether the RFC 1459 compatibility mode must be used or not.
And it fixes the announcement of users during establishing new server links
with such peers.
This commit is contained in:
Alexander Barton 2008-08-14 23:23:04 +02:00
parent 14048c4717
commit a60465be3e
4 changed files with 46 additions and 25 deletions
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1
src/ngircd/client.h
View File

@ -26,6 +26,7 @@
#define CLIENT_SERVER 32 /* client is a server */
#define CLIENT_SERVICE 64 /* client is a service */
#define CLIENT_UNKNOWNSERVER 128 /* unregistered server connection */
#define CLIENT_GOTPASS_2813 256 /* client did send PASS, RFC 2813 style */
#define CLIENT_TYPE int

21
src/ngircd/irc-login.c
View File

@ -81,7 +81,7 @@ IRC_PASS( CLIENT *Client, REQUEST *Req )
/* Not yet registered "unknown" connection, PASS with one
* argument: either a regular client, service, or server
* using the old RFC 1459 section 4.1.1 syntax. */
LogDebug("Connection %d: got PASS command ...",
LogDebug("Connection %d: got PASS command (RFC 1459) ...",
Client_Conn(Client));
} else if ((Client_Type(Client) == CLIENT_UNKNOWN ||
Client_Type(Client) == CLIENT_UNKNOWNSERVER) &&
@ -89,7 +89,7 @@ IRC_PASS( CLIENT *Client, REQUEST *Req )
/* Not yet registered "unknown" connection or outgoing server
* link, PASS with three or four argument: server using the
* RFC 2813 section 4.1.1 syntax. */
LogDebug("Connection %d: got PASS command (new server link) ...",
LogDebug("Connection %d: got PASS command (RFC 2813, new server link) ...",
Client_Conn(Client));
} else if (Client_Type(Client) == CLIENT_UNKNOWN ||
Client_Type(Client) == CLIENT_UNKNOWNSERVER) {
@ -103,7 +103,6 @@ IRC_PASS( CLIENT *Client, REQUEST *Req )
}
Client_SetPassword(Client, Req->argv[0]);
Client_SetType(Client, CLIENT_GOTPASS);
/* Protocol version */
if (Req->argc >= 2 && strlen(Req->argv[1]) >= 4) {
@ -119,8 +118,12 @@ IRC_PASS( CLIENT *Client, REQUEST *Req )
Req->argv[1][2] = c2;
Req->argv[1][4] = c4;
} else
Client_SetType(Client, CLIENT_GOTPASS_2813);
} else {
protohigh = protolow = 0;
Client_SetType(Client, CLIENT_GOTPASS);
}
/* Protocol type, see doc/Protocol.txt */
if (Req->argc >= 2 && strlen(Req->argv[1]) > 4)
@ -185,7 +188,6 @@ GLOBAL bool
IRC_NICK( CLIENT *Client, REQUEST *Req )
{
CLIENT *intr_c, *target, *c;
CONN_ID conn;
char *nick, *user, *hostname, *modes, *info;
int token, hops;
@ -340,15 +342,6 @@ IRC_NICK( CLIENT *Client, REQUEST *Req )
token = atoi(Req->argv[1]);
modes = "";
info = Req->argv[0];
conn = Client_Conn(Client);
if (conn != NONE &&
!(Conn_Options(conn) & CONN_RFC1459)) {
Log(LOG_INFO,
"Switching connection %d (\"%s\") to RFC 1459 compatibility mode.",
conn, Client_ID(Client));
Conn_SetOption(conn, CONN_RFC1459);
}
}
/* Nick ueberpruefen */

19
src/ngircd/irc-server.c
View File

@ -14,8 +14,6 @@
#include "portab.h"
static char UNUSED id[] = "$Id: irc-server.c,v 1.46 2007/11/21 12:16:36 alex Exp $";
#include "imp.h"
#include <assert.h>
#include <stdio.h>
@ -26,6 +24,7 @@ static char UNUSED id[] = "$Id: irc-server.c,v 1.46 2007/11/21 12:16:36 alex Exp
#include "defines.h"
#include "resolve.h"
#include "conn.h"
#include "conn-func.h"
#include "conn-zip.h"
#include "conf.h"
#include "client.h"
@ -64,7 +63,8 @@ IRC_SERVER( CLIENT *Client, REQUEST *Req )
return IRC_WriteStrClient(Client, ERR_UNKNOWNCOMMAND_MSG,
Client_ID(Client), Req->command);
if (Client_Type(Client) == CLIENT_GOTPASS) {
if (Client_Type(Client) == CLIENT_GOTPASS ||
Client_Type(Client) == CLIENT_GOTPASS_2813) {
/* We got a PASS command from the peer, and now a SERVER
* command: the peer tries to register itself as a server. */
LogDebug("Connection %d: got SERVER command (new server link) ...",
@ -124,7 +124,18 @@ IRC_SERVER( CLIENT *Client, REQUEST *Req )
/* Mark this connection as belonging to an configured server */
Conf_SetServer(i, con);
/* Check protocol level */
if (Client_Type(Client) == CLIENT_GOTPASS) {
/* We got a "simple" PASS command, so the peer is
* using the protocol as defined in RFC 1459. */
if (! (Conn_Options(con) & CONN_RFC1459))
Log(LOG_INFO,
"Switching connection %d (\"%s\") to RFC 1459 compatibility mode.",
con, Client_ID(Client));
Conn_SetOption(con, CONN_RFC1459);
}
Client_SetType(Client, CLIENT_UNKNOWNSERVER);
#ifdef ZLIB

30
src/ngircd/numeric.c
View File

@ -1,6 +1,6 @@
/*
* ngIRCd -- The Next Generation IRC Daemon
* Copyright (c)2001-2007 Alexander Barton (alex@barton.de)
* Copyright (c)2001-2008 Alexander Barton (alex@barton.de)
*
* 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
@ -13,8 +13,6 @@
#include "portab.h"
static char UNUSED id[] = "$Id: numeric.c,v 1.1 2007/11/21 12:20:32 alex Exp $";
#include "imp.h"
#include <assert.h>
#include <stdio.h>
@ -26,6 +24,7 @@ static char UNUSED id[] = "$Id: numeric.c,v 1.1 2007/11/21 12:20:32 alex Exp $";
#include "conn.h"
#include "conf.h"
#include "conn.h"
#include "conn-func.h"
#include "client.h"
#include "channel.h"
#include "irc-write.h"
@ -78,10 +77,27 @@ Announce_Server(CLIENT * Client, CLIENT * Server)
static bool
Announce_User(CLIENT * Client, CLIENT * User)
{
return IRC_WriteStrClient(Client, "NICK %s %d %s %s %d +%s :%s",
Client_ID(User), Client_Hops(User) + 1, Client_User(User),
Client_Hostname(User), Client_MyToken(Client_Introducer(User)),
Client_Modes(User), Client_Info(User));
CONN_ID conn;
conn = Client_Conn(Client);
if (Conn_Options(conn) & CONN_RFC1459) {
/* RFC 1459 mode: separate NICK and USER commands */
if (! Conn_WriteStr(conn, "NICK %s :%d",
Client_ID(User), Client_Hops(User) + 1))
return DISCONNECTED;
return Conn_WriteStr(conn, ":%s USER %s %s %s :%s",
Client_ID(User), Client_User(User),
Client_Hostname(User),
Client_ID(Client_Introducer(User)),
Client_Info(User));
} else {
/* RFC 2813 mode: one combined NICK command */
return IRC_WriteStrClient(Client, "NICK %s %d %s %s %d +%s :%s",
Client_ID(User), Client_Hops(User) + 1,
Client_User(User), Client_Hostname(User),
Client_MyToken(Client_Introducer(User)),
Client_Modes(User), Client_Info(User));
}
} /* Announce_User */