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[DCCP]: Introduce DCCPv6 

Still needs mucho polishing, specially in the checksum code, but works
just fine, inet_diag/iproute2 and all 8)

Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Arnaldo Carvalho de Melo 2005-12-13 23:24:53 -08:00 committed by David S. Miller
parent 399c07def6
commit 3df80d9320
4 changed files with 1490 additions and 0 deletions
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4
net/dccp/Makefile
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@ -1,3 +1,7 @@
obj-$(CONFIG_IPV6) += dccp_ipv6.o
dccp_ipv6-y := ipv6.o
obj-$(CONFIG_IP_DCCP) += dccp.o
dccp-y := ccid.o input.o ipv4.o minisocks.o options.o output.o proto.o \

1438
net/dccp/ipv6.c Normal file
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File diff suppressed because it is too large Load Diff

37
net/dccp/ipv6.h Normal file
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@ -0,0 +1,37 @@
#ifndef _DCCP_IPV6_H
#define _DCCP_IPV6_H
/*
* net/dccp/ipv6.h
*
* An implementation of the DCCP protocol
* Copyright (c) 2005 Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/config.h>
#include <linux/dccp.h>
#include <linux/ipv6.h>
struct dccp6_sock {
struct dccp_sock dccp;
/*
* ipv6_pinfo has to be the last member of dccp6_sock,
* see inet6_sk_generic.
*/
struct ipv6_pinfo inet6;
};
struct dccp6_request_sock {
struct dccp_request_sock dccp;
struct inet6_request_sock inet6;
};
struct dccp6_timewait_sock {
struct inet_timewait_sock inet;
struct inet6_timewait_sock tw6;
};
#endif /* _DCCP_IPV6_H */

11
net/dccp/minisocks.c
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@ -52,7 +52,18 @@ void dccp_time_wait(struct sock *sk, int state, int timeo)
if (tw != NULL) {
const struct inet_connection_sock *icsk = inet_csk(sk);
const int rto = (icsk->icsk_rto << 2) - (icsk->icsk_rto >> 1);
#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
if (tw->tw_family == PF_INET6) {
const struct ipv6_pinfo *np = inet6_sk(sk);
struct inet6_timewait_sock *tw6;
tw->tw_ipv6_offset = inet6_tw_offset(sk->sk_prot);
tw6 = inet6_twsk((struct sock *)tw);
ipv6_addr_copy(&tw6->tw_v6_daddr, &np->daddr);
ipv6_addr_copy(&tw6->tw_v6_rcv_saddr, &np->rcv_saddr);
tw->tw_ipv6only = np->ipv6only;
}
#endif
/* Linkage updates. */
__inet_twsk_hashdance(tw, sk, &dccp_hashinfo);