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authorEric Dumazet <edumazet@google.com>2013-10-09 15:21:29 -0700
committerDavid S. Miller <davem@davemloft.net>2013-10-10 00:08:07 -0400
commit634fb979e8f3a70f04c1f2f519d0cd1142eb5c1a (patch)
treeffd7f7ef4a313c94859180d1bc20f2713a11f987 /net/ipv6/syncookies.c
parent8a29111c7ca68d928dfab58636f3f6acf0ac04f7 (diff)
downloadlinux-634fb979e8f3a70f04c1f2f519d0cd1142eb5c1a.tar.bz2
inet: includes a sock_common in request_sock
TCP listener refactoring, part 5 : We want to be able to insert request sockets (SYN_RECV) into main ehash table instead of the per listener hash table to allow RCU lookups and remove listener lock contention. This patch includes the needed struct sock_common in front of struct request_sock This means there is no more inet6_request_sock IPv6 specific structure. Following inet_request_sock fields were renamed as they became macros to reference fields from struct sock_common. Prefix ir_ was chosen to avoid name collisions. loc_port -> ir_loc_port loc_addr -> ir_loc_addr rmt_addr -> ir_rmt_addr rmt_port -> ir_rmt_port iif -> ir_iif Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6/syncookies.c')
-rw-r--r--net/ipv6/syncookies.c24
1 files changed, 11 insertions, 13 deletions
diff --git a/net/ipv6/syncookies.c b/net/ipv6/syncookies.c
index d703218a653b..bc5698f9e4cd 100644
--- a/net/ipv6/syncookies.c
+++ b/net/ipv6/syncookies.c
@@ -150,7 +150,6 @@ struct sock *cookie_v6_check(struct sock *sk, struct sk_buff *skb)
{
struct tcp_options_received tcp_opt;
struct inet_request_sock *ireq;
- struct inet6_request_sock *ireq6;
struct tcp_request_sock *treq;
struct ipv6_pinfo *np = inet6_sk(sk);
struct tcp_sock *tp = tcp_sk(sk);
@@ -187,7 +186,6 @@ struct sock *cookie_v6_check(struct sock *sk, struct sk_buff *skb)
goto out;
ireq = inet_rsk(req);
- ireq6 = inet6_rsk(req);
treq = tcp_rsk(req);
treq->listener = NULL;
@@ -195,22 +193,22 @@ struct sock *cookie_v6_check(struct sock *sk, struct sk_buff *skb)
goto out_free;
req->mss = mss;
- ireq->rmt_port = th->source;
- ireq->loc_port = th->dest;
- ireq6->rmt_addr = ipv6_hdr(skb)->saddr;
- ireq6->loc_addr = ipv6_hdr(skb)->daddr;
+ ireq->ir_rmt_port = th->source;
+ ireq->ir_loc_port = th->dest;
+ ireq->ir_v6_rmt_addr = ipv6_hdr(skb)->saddr;
+ ireq->ir_v6_loc_addr = ipv6_hdr(skb)->daddr;
if (ipv6_opt_accepted(sk, skb) ||
np->rxopt.bits.rxinfo || np->rxopt.bits.rxoinfo ||
np->rxopt.bits.rxhlim || np->rxopt.bits.rxohlim) {
atomic_inc(&skb->users);
- ireq6->pktopts = skb;
+ ireq->pktopts = skb;
}
- ireq6->iif = sk->sk_bound_dev_if;
+ ireq->ir_iif = sk->sk_bound_dev_if;
/* So that link locals have meaning */
if (!sk->sk_bound_dev_if &&
- ipv6_addr_type(&ireq6->rmt_addr) & IPV6_ADDR_LINKLOCAL)
- ireq6->iif = inet6_iif(skb);
+ ipv6_addr_type(&ireq->ir_v6_rmt_addr) & IPV6_ADDR_LINKLOCAL)
+ ireq->ir_iif = inet6_iif(skb);
req->expires = 0UL;
req->num_retrans = 0;
@@ -234,12 +232,12 @@ struct sock *cookie_v6_check(struct sock *sk, struct sk_buff *skb)
struct flowi6 fl6;
memset(&fl6, 0, sizeof(fl6));
fl6.flowi6_proto = IPPROTO_TCP;
- fl6.daddr = ireq6->rmt_addr;
+ fl6.daddr = ireq->ir_v6_rmt_addr;
final_p = fl6_update_dst(&fl6, np->opt, &final);
- fl6.saddr = ireq6->loc_addr;
+ fl6.saddr = ireq->ir_v6_loc_addr;
fl6.flowi6_oif = sk->sk_bound_dev_if;
fl6.flowi6_mark = sk->sk_mark;
- fl6.fl6_dport = inet_rsk(req)->rmt_port;
+ fl6.fl6_dport = ireq->ir_rmt_port;
fl6.fl6_sport = inet_sk(sk)->inet_sport;
security_req_classify_flow(req, flowi6_to_flowi(&fl6));