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net: Set sk_txhash from a random number

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This patch creates sk_set_txhash and eliminates protocol specific
inet_set_txhash and ip6_set_txhash. sk_set_txhash simply sets a
random number instead of performing flow dissection. sk_set_txash
is also allowed to be called multiple times for the same socket,
we'll need this when redoing the hash for negative routing advice.

Signed-off-by: Tom Herbert <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Tom Herbert 2015-07-28 16:02:05 -07:00 • committed by David S. Miller
commit 877d1f6291
7 changed files with 14 additions and 41 deletions
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2
net/ipv6/datagram.c
View file

@ -199,7 +199,7 @@ ipv4_connected:
NULL);
sk->sk_state = TCP_ESTABLISHED;
ip6_set_txhash(sk);
sk_set_txhash(sk);
out:
fl6_sock_release(flowlabel);
return err;

4
net/ipv6/tcp_ipv6.c
View file

@ -276,7 +276,7 @@ static int tcp_v6_connect(struct sock *sk, struct sockaddr *uaddr,
if (err)
goto late_failure;
ip6_set_txhash(sk);
sk_set_txhash(sk);
if (!tp->write_seq && likely(!tp->repair))
tp->write_seq = secure_tcpv6_sequence_number(np->saddr.s6_addr32,
@ -1090,7 +1090,7 @@ static struct sock *tcp_v6_syn_recv_sock(struct sock *sk, struct sk_buff *skb,
newsk->sk_v6_rcv_saddr = ireq->ir_v6_loc_addr;
newsk->sk_bound_dev_if = ireq->ir_iif;
ip6_set_txhash(newsk);
sk_set_txhash(newsk);
/* Now IPv6 options...