Differential D11085 Diff 40548 sys/netinet/tcp_output.c

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sys/netinet/tcp_output.c

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#ifdef INET6		#ifdef INET6
#include <netinet6/in6_pcb.h>		#include <netinet6/in6_pcb.h>
#include <netinet/ip6.h>		#include <netinet/ip6.h>
#include <netinet6/ip6_var.h>		#include <netinet6/ip6_var.h>
#endif		#endif
#include <netinet/tcp.h>		#include <netinet/tcp.h>
#define TCPOUTFLAGS		#define TCPOUTFLAGS
#include <netinet/tcp_fsm.h>		#include <netinet/tcp_fsm.h>
		#include <netinet/tcp_log_buf.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>
#include <netinet/tcp_fastopen.h>		#include <netinet/tcp_fastopen.h>
#ifdef TCPPCAP		#ifdef TCPPCAP
#include <netinet/tcp_pcap.h>		#include <netinet/tcp_pcap.h>
▲ Show 20 Lines • Show All 1,220 Lines • ▼ Show 20 Lines	th->th_sum = in_pseudo(ip->ip_src.s_addr, ip->ip_dst.s_addr,
htons(sizeof(struct tcphdr) + IPPROTO_TCP + len + optlen));		htons(sizeof(struct tcphdr) + IPPROTO_TCP + len + optlen));

/* IP version must be set here for ipv4/ipv6 checking later */		/* IP version must be set here for ipv4/ipv6 checking later */
KASSERT(ip->ip_v == IPVERSION,		KASSERT(ip->ip_v == IPVERSION,
("%s: IP version incorrect: %d", __func__, ip->ip_v));		("%s: IP version incorrect: %d", __func__, ip->ip_v));
}		}
#endif		#endif

		/* We're getting ready to send; log now. */
		TCP_LOG_EVENT(tp, th, &so->so_rcv, &so->so_snd, TCP_LOG_OUT, ERRNO_UNK,
		len, NULL, false);

/*		/*
* Enable TSO and specify the size of the segments.		* Enable TSO and specify the size of the segments.
* The TCP pseudo header checksum is always provided.		* The TCP pseudo header checksum is always provided.
*/		*/
if (tso) {		if (tso) {
KASSERT(len > tp->t_maxseg - optlen,		KASSERT(len > tp->t_maxseg - optlen,
("%s: len <= tso_segsz", __func__));		("%s: len <= tso_segsz", __func__));
m->m_pkthdr.csum_flags \|= CSUM_TSO;		m->m_pkthdr.csum_flags \|= CSUM_TSO;
▲ Show 20 Lines • Show All 223 Lines • ▼ Show 20 Lines	if (flags & TH_FIN) {
++xlen;		++xlen;
tp->t_flags \|= TF_SENTFIN;		tp->t_flags \|= TF_SENTFIN;
}		}
if (SEQ_GT(tp->snd_nxt + xlen, tp->snd_max))		if (SEQ_GT(tp->snd_nxt + xlen, tp->snd_max))
tp->snd_max = tp->snd_nxt + xlen;		tp->snd_max = tp->snd_nxt + xlen;
}		}

if (error) {		if (error) {
		/* Record the error. */
		TCP_LOG_EVENT(tp, NULL, &so->so_rcv, &so->so_snd, TCP_LOG_OUT,
		error, 0, NULL, false);

/*		/*
* We know that the packet was lost, so back out the		* We know that the packet was lost, so back out the
* sequence number advance, if any.		* sequence number advance, if any.
*		*
* If the error is EPERM the packet got blocked by the		* If the error is EPERM the packet got blocked by the
* local firewall. Normally we should terminate the		* local firewall. Normally we should terminate the
* connection but the blocking may have been spurious		* connection but the blocking may have been spurious
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