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slirp: remove dead TCP_ACK_HACK code

Browse source 
Untouched since original introduction in 2004.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
This commit is contained in:
Marc-André Lureau 2018-11-14 16:36:38 +04:00 • committed by Samuel Thibault
parent 3a600d111a
commit 3a78c2f468
1 changed files with 1 additions and 22 deletions
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23
slirp/tcp_input.c
View file

@ -60,27 +60,6 @@
* Set DELACK for segments received in order, but ack immediately * Set DELACK for segments received in order, but ack immediately
* when segments are out of order (so fast retransmit can work). * when segments are out of order (so fast retransmit can work).
*/ */
#ifdef TCP_ACK_HACK
#define TCP_REASS(tp, ti, m, so, flags) {\
if ((ti)->ti_seq == (tp)->rcv_nxt && \
tcpfrag_list_empty(tp) && \
(tp)->t_state == TCPS_ESTABLISHED) {\
if (ti->ti_flags & TH_PUSH) \
tp->t_flags |= TF_ACKNOW; \
else \
tp->t_flags |= TF_DELACK; \
(tp)->rcv_nxt += (ti)->ti_len; \
flags = (ti)->ti_flags & TH_FIN; \
if (so->so_emu) { \
if (tcp_emu((so),(m))) sbappend((so), (m)); \
} else \
sbappend((so), (m)); \
} else {\
(flags) = tcp_reass((tp), (ti), (m)); \
tp->t_flags |= TF_ACKNOW; \
} \
}
#else
#define TCP_REASS(tp, ti, m, so, flags) { \ #define TCP_REASS(tp, ti, m, so, flags) { \
if ((ti)->ti_seq == (tp)->rcv_nxt && \ if ((ti)->ti_seq == (tp)->rcv_nxt && \
tcpfrag_list_empty(tp) && \ tcpfrag_list_empty(tp) && \
@ -97,7 +76,7 @@
tp->t_flags |= TF_ACKNOW; \ tp->t_flags |= TF_ACKNOW; \
} \ } \
} }
#endif
static void tcp_dooptions(struct tcpcb *tp, u_char *cp, int cnt, static void tcp_dooptions(struct tcpcb *tp, u_char *cp, int cnt,
struct tcpiphdr *ti); struct tcpiphdr *ti);
static void tcp_xmit_timer(register struct tcpcb *tp, int rtt); static void tcp_xmit_timer(register struct tcpcb *tp, int rtt);