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author | Eric Dumazet <edumazet@google.com> | 2015-01-30 08:35:05 +0300 |
---|---|---|
committer | Jiri Slaby <jslaby@suse.cz> | 2015-02-10 13:16:52 +0300 |
commit | 1a95b47aa41d11726cf0634034b80d28f0521832 (patch) | |
tree | 59e2cc76dcc6cb1935d512102637dc620793dc2b /include/net/ip.h | |
parent | 5e1ab4d77a27e1c6f17101261f8aa759720a203e (diff) | |
download | linux-1a95b47aa41d11726cf0634034b80d28f0521832.tar.xz |
ipv4: tcp: get rid of ugly unicast_sock
[ Upstream commit bdbbb8527b6f6a358dbcb70dac247034d665b8e4 ]
In commit be9f4a44e7d41 ("ipv4: tcp: remove per net tcp_sock")
I tried to address contention on a socket lock, but the solution
I chose was horrible :
commit 3a7c384ffd57e ("ipv4: tcp: unicast_sock should not land outside
of TCP stack") addressed a selinux regression.
commit 0980e56e506b ("ipv4: tcp: set unicast_sock uc_ttl to -1")
took care of another regression.
commit b5ec8eeac46 ("ipv4: fix ip_send_skb()") fixed another regression.
commit 811230cd85 ("tcp: ipv4: initialize unicast_sock sk_pacing_rate")
was another shot in the dark.
Really, just use a proper socket per cpu, and remove the skb_orphan()
call, to re-enable flow control.
This solves a serious problem with FQ packet scheduler when used in
hostile environments, as we do not want to allocate a flow structure
for every RST packet sent in response to a spoofed packet.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Diffstat (limited to 'include/net/ip.h')
-rw-r--r-- | include/net/ip.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/net/ip.h b/include/net/ip.h index f12cb2f0cddd..1b1269e13596 100644 --- a/include/net/ip.h +++ b/include/net/ip.h @@ -163,7 +163,7 @@ static inline __u8 ip_reply_arg_flowi_flags(const struct ip_reply_arg *arg) return (arg->flags & IP_REPLY_ARG_NOSRCCHECK) ? FLOWI_FLAG_ANYSRC : 0; } -void ip_send_unicast_reply(struct net *net, struct sk_buff *skb, __be32 daddr, +void ip_send_unicast_reply(struct sock *sk, struct sk_buff *skb, __be32 daddr, __be32 saddr, const struct ip_reply_arg *arg, unsigned int len); |