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TCPCT part 1a: add request_values parameter for sending SYNACK

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Add optional function parameters associated with sending SYNACK.
These parameters are not needed after sending SYNACK, and are not
used for retransmission.  Avoids extending struct tcp_request_sock,
and avoids allocating kernel memory.

Also affects DCCP as it uses common struct request_sock_ops,
but this parameter is currently reserved for future use.

Signed-off-by: William.Allen.Simpson@gmail.com
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
William Allen Simpson 2009-12-02 18:07:39 +00:00 • committed by David S. Miller
parent e00484023e
commit e6b4d11367
10 changed files with 42 additions and 33 deletions
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3
include/net/tcp.h
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@ -440,7 +440,8 @@ extern int tcp_connect(struct sock *sk);
extern struct sk_buff * tcp_make_synack(struct sock *sk,
struct dst_entry *dst,
struct request_sock *req);
struct request_sock *req,
struct request_values *rvp);
extern int tcp_disconnect(struct sock *sk, int flags);