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Differential D14047 Diff 38432 sys/netinet/tcp_usrreq.c

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sys/netinet/tcp_usrreq.c

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#include <netinet/in_var.h> #include <netinet/in_var.h>
#include <netinet/ip_var.h> #include <netinet/ip_var.h>
#ifdef INET6 #ifdef INET6
#include <netinet/ip6.h> #include <netinet/ip6.h>
#include <netinet6/in6_pcb.h> #include <netinet6/in6_pcb.h>
#include <netinet6/ip6_var.h> #include <netinet6/ip6_var.h>
#include <netinet6/scope6_var.h> #include <netinet6/scope6_var.h>
#endif #endif
#ifdef TCP_RFC7413
#include <netinet/tcp_fastopen.h>
#endif
#include <netinet/tcp.h> #include <netinet/tcp.h>
#include <netinet/tcp_fsm.h> #include <netinet/tcp_fsm.h>
#include <netinet/tcp_seq.h> #include <netinet/tcp_seq.h>
#include <netinet/tcp_timer.h> #include <netinet/tcp_timer.h>
#include <netinet/tcp_var.h> #include <netinet/tcp_var.h>
#include <netinet/tcpip.h> #include <netinet/tcpip.h>
#include <netinet/cc/cc.h> #include <netinet/cc/cc.h>
#ifdef TCP_RFC7413
#include <netinet/tcp_fastopen.h>
#endif
#ifdef TCPPCAP #ifdef TCPPCAP
#include <netinet/tcp_pcap.h> #include <netinet/tcp_pcap.h>
#endif #endif
#ifdef TCPDEBUG #ifdef TCPDEBUG
#include <netinet/tcp_debug.h> #include <netinet/tcp_debug.h>
#endif #endif
#ifdef TCP_OFFLOAD #ifdef TCP_OFFLOAD
#include <netinet/tcp_offload.h> #include <netinet/tcp_offload.h>
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#if defined(INET6) && defined(INET) #if defined(INET6) && defined(INET)
else else
#endif #endif
#ifdef INET #ifdef INET
error = tcp_connect(tp, nam, td); error = tcp_connect(tp, nam, td);
#endif #endif
if (error) if (error)
goto out; goto out;
#ifdef TCP_RFC7413
if (IS_FASTOPEN(tp->t_flags))
tcp_fastopen_connect(tp);
else
#endif
{
tp->snd_wnd = TTCP_CLIENT_SND_WND; tp->snd_wnd = TTCP_CLIENT_SND_WND;
tcp_mss(tp, -1); tcp_mss(tp, -1);
} }
}
if (flags & PRUS_EOF) { if (flags & PRUS_EOF) {
/* /*
* Close the send side of the connection after * Close the send side of the connection after
* the data is sent. * the data is sent.
*/ */
INP_INFO_RLOCK_ASSERT(&V_tcbinfo); INP_INFO_RLOCK_ASSERT(&V_tcbinfo);
socantsendmore(so); socantsendmore(so);
tcp_usrclosed(tp); tcp_usrclosed(tp);
Show All 28 Lines#endif
sbappendstream_locked(&so->so_snd, m, flags); sbappendstream_locked(&so->so_snd, m, flags);
SOCKBUF_UNLOCK(&so->so_snd); SOCKBUF_UNLOCK(&so->so_snd);
if (nam && tp->t_state < TCPS_SYN_SENT) { if (nam && tp->t_state < TCPS_SYN_SENT) {
/* /*
* Do implied connect if not yet connected, * Do implied connect if not yet connected,
* initialize window to default value, and * initialize window to default value, and
* initialize maxseg using peer's cached MSS. * initialize maxseg using peer's cached MSS.
*/ */
#ifdef TCP_RFC7413
/*
* Not going to contemplate SYN|URG
*/
if (IS_FASTOPEN(tp->t_flags))
tp->t_flags &= ~TF_FASTOPEN;
#endif
#ifdef INET6 #ifdef INET6
if (isipv6) if (isipv6)
error = tcp6_connect(tp, nam, td); error = tcp6_connect(tp, nam, td);
#endif /* INET6 */ #endif /* INET6 */
#if defined(INET6) && defined(INET) #if defined(INET6) && defined(INET)
else else
#endif #endif
#ifdef INET #ifdef INET
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&(tp->t_outpkts) : &(tp->t_inpkts), &(tp->t_outpkts) : &(tp->t_inpkts),
optval); optval);
else else
error = EINVAL; error = EINVAL;
goto unlock_and_done; goto unlock_and_done;
#endif #endif
#ifdef TCP_RFC7413 #ifdef TCP_RFC7413
case TCP_FASTOPEN: case TCP_FASTOPEN: {
struct tcp_fastopen tfo_optval;
INP_WUNLOCK(inp); INP_WUNLOCK(inp);
if (!V_tcp_fastopen_enabled) if (!V_tcp_fastopen_client_enable &&
!V_tcp_fastopen_server_enable)
return (EPERM); return (EPERM);
error = sooptcopyin(sopt, &optval, sizeof optval, error = sooptcopyin(sopt, &tfo_optval,
sizeof optval); sizeof(tfo_optval), sizeof(int));
if (error) if (error)
return (error); return (error);
INP_WLOCK_RECHECK(inp); INP_WLOCK_RECHECK(inp);
if (optval) { if (tfo_optval.enable) {
if (tp->t_state == TCPS_LISTEN) {
if (!V_tcp_fastopen_server_enable) {
error = EPERM;
goto unlock_and_done;
}
tp->t_flags |= TF_FASTOPEN; tp->t_flags |= TF_FASTOPEN;
if ((tp->t_state == TCPS_LISTEN) && if (tp->t_tfo_pending == NULL)
(tp->t_tfo_pending == NULL))
tp->t_tfo_pending = tp->t_tfo_pending =
tcp_fastopen_alloc_counter(); tcp_fastopen_alloc_counter();
} else {
/*
* If a pre-shared key was provided,
* stash it in the client cookie
* field of the tcpcb for use during
* connect.
*/
if (sopt->sopt_valsize ==
sizeof(tfo_optval)) {
memcpy(tp->t_tfo_cookie.client,
tfo_optval.psk,
TCP_FASTOPEN_PSK_LEN);
tp->t_tfo_client_cookie_len =
TCP_FASTOPEN_PSK_LEN;
}
tp->t_flags |= TF_FASTOPEN;
}
} else } else
tp->t_flags &= ~TF_FASTOPEN; tp->t_flags &= ~TF_FASTOPEN;
goto unlock_and_done; goto unlock_and_done;
}
#endif #endif
default: default:
INP_WUNLOCK(inp); INP_WUNLOCK(inp);
error = ENOPROTOOPT; error = ENOPROTOOPT;
break; break;
} }
break; break;
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