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authorYuchung Cheng <ycheng@google.com>2014-05-11 20:22:10 -0700
committerDavid S. Miller <davem@davemloft.net>2014-05-13 17:53:02 -0400
commit89278c9dc922272df921042aafa18311f3398c6c (patch)
tree0138bbfdcd757b29f89a999d8f7c84260b68f505 /include/net/tcp.h
parenttcp: move fastopen functions to tcp_fastopen.c (diff)
downloadlinux-dev-89278c9dc922272df921042aafa18311f3398c6c.tar.xz
linux-dev-89278c9dc922272df921042aafa18311f3398c6c.zip
tcp: simplify fast open cookie processing
Consolidate various cookie checking and generation code to simplify the fast open processing. The main goal is to reduce code duplication in tcp_v4_conn_request() for IPv6 support. Removes two experimental sysctl flags TFO_SERVER_ALWAYS and TFO_SERVER_COOKIE_NOT_CHKD used primarily for developmental debugging purposes. Signed-off-by: Yuchung Cheng <ycheng@google.com> Signed-off-by: Daniel Lee <longinus00@gmail.com> Signed-off-by: Jerry Chu <hkchu@google.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Acked-by: Neal Cardwell <ncardwell@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/tcp.h')
-rw-r--r--include/net/tcp.h9
1 files changed, 1 insertions, 8 deletions
diff --git a/include/net/tcp.h b/include/net/tcp.h
index 012236838583..17d7c6a3d037 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -220,8 +220,6 @@ void tcp_time_wait(struct sock *sk, int state, int timeo);
#define TFO_SERVER_ENABLE 2
#define TFO_CLIENT_NO_COOKIE 4 /* Data in SYN w/o cookie option */
-/* Process SYN data but skip cookie validation */
-#define TFO_SERVER_COOKIE_NOT_CHKED 0x100
/* Accept SYN data w/o any cookie option */
#define TFO_SERVER_COOKIE_NOT_REQD 0x200
@@ -230,10 +228,6 @@ void tcp_time_wait(struct sock *sk, int state, int timeo);
*/
#define TFO_SERVER_WO_SOCKOPT1 0x400
#define TFO_SERVER_WO_SOCKOPT2 0x800
-/* Always create TFO child sockets on a TFO listener even when
- * cookie/data not present. (For testing purpose!)
- */
-#define TFO_SERVER_ALWAYS 0x1000
extern struct inet_timewait_death_row tcp_death_row;
@@ -1335,8 +1329,7 @@ int tcp_fastopen_create_child(struct sock *sk,
struct request_sock *req);
bool tcp_fastopen_check(struct sock *sk, struct sk_buff *skb,
struct request_sock *req,
- struct tcp_fastopen_cookie *foc,
- struct tcp_fastopen_cookie *valid_foc);
+ struct tcp_fastopen_cookie *foc);
void tcp_fastopen_init_key_once(bool publish);
#define TCP_FASTOPEN_KEY_LENGTH 16