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[DCCP]: Introduce dccp_ipv4_af_ops

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And make the core DCCP code AF agnostic, just like TCP, now its time
to work on net/dccp/ipv6.c, we are close to the end!

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 23:16:16 -08:00
committed by David S. Miller
parent af05dc9394
commit 57cca05af1
5 changed files with 39 additions and 14 deletions
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23
net/dccp/ipv4.c
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@ -607,6 +607,15 @@ out:
sock_put(sk);
}
/* This routine computes an IPv4 DCCP checksum. */
static void dccp_v4_send_check(struct sock *sk, int len, struct sk_buff *skb)
{
const struct inet_sock *inet = inet_sk(sk);
struct dccp_hdr *dh = dccp_hdr(skb);
dh->dccph_checksum = dccp_v4_checksum(skb, inet->saddr, inet->daddr);
}
int dccp_v4_send_reset(struct sock *sk, enum dccp_reset_codes code)
{
struct sk_buff *skb;
@ -1195,6 +1204,19 @@ do_time_wait:
goto no_dccp_socket;
}
struct inet_connection_sock_af_ops dccp_ipv4_af_ops = {
.queue_xmit = ip_queue_xmit,
.send_check = dccp_v4_send_check,
.rebuild_header = inet_sk_rebuild_header,
.conn_request = dccp_v4_conn_request,
.syn_recv_sock = dccp_v4_request_recv_sock,
.net_header_len = sizeof(struct iphdr),
.setsockopt = ip_setsockopt,
.getsockopt = ip_getsockopt,
.addr2sockaddr = inet_csk_addr2sockaddr,
.sockaddr_len = sizeof(struct sockaddr_in),
};
static int dccp_v4_init_sock(struct sock *sk)
{
struct dccp_sock *dp = dccp_sk(sk);
@ -1240,6 +1262,7 @@ static int dccp_v4_init_sock(struct sock *sk)
inet_csk(sk)->icsk_rto = DCCP_TIMEOUT_INIT;
sk->sk_state = DCCP_CLOSED;
sk->sk_write_space = dccp_write_space;
inet_csk(sk)->icsk_af_ops = &dccp_ipv4_af_ops;
dp->dccps_mss_cache = 536;
dp->dccps_role = DCCP_ROLE_UNDEFINED;
dp->dccps_service = DCCP_SERVICE_INVALID_VALUE;