Differential D9894 Diff 27156 sys/netinet/tcp_input.c

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sys/netinet/tcp_input.c

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SYSCTL_VNET_PCPUSTAT(_net_inet_tcp, TCPCTL_STATS, stats, struct tcpstat,		SYSCTL_VNET_PCPUSTAT(_net_inet_tcp, TCPCTL_STATS, stats, struct tcpstat,
tcpstat, "TCP statistics (struct tcpstat, netinet/tcp_var.h)");		tcpstat, "TCP statistics (struct tcpstat, netinet/tcp_var.h)");
VNET_DEFINE(counter_u64_t, tcps_states[TCP_NSTATES]);		VNET_DEFINE(counter_u64_t, tcps_states[TCP_NSTATES]);
SYSCTL_COUNTER_U64_ARRAY(_net_inet_tcp, TCPCTL_STATES, states, CTLFLAG_RD \|		SYSCTL_COUNTER_U64_ARRAY(_net_inet_tcp, TCPCTL_STATES, states, CTLFLAG_RD \|
CTLFLAG_VNET, &VNET_NAME(tcps_states)[0], TCP_NSTATES,		CTLFLAG_VNET, &VNET_NAME(tcps_states)[0], TCP_NSTATES,
"TCP connection counts by TCP state");		"TCP connection counts by TCP state");

static void		static void
tcp_vnet_init(const void *unused)		tcp_vnet_init(const void *unused)
		aeUnsubmitted Not Done Inline Actions This declaration seems unnecessary. It is already defined at the line 147. ae: This declaration seems unnecessary. It is already defined at the line 147.
{		{

COUNTER_ARRAY_ALLOC(V_tcps_states, TCP_NSTATES, M_WAITOK);		COUNTER_ARRAY_ALLOC(V_tcps_states, TCP_NSTATES, M_WAITOK);
VNET_PCPUSTAT_ALLOC(tcpstat, M_WAITOK);		VNET_PCPUSTAT_ALLOC(tcpstat, M_WAITOK);
}		}
VNET_SYSINIT(tcp_vnet_init, SI_SUB_PROTO_IFATTACHDOMAIN, SI_ORDER_ANY,		VNET_SYSINIT(tcp_vnet_init, SI_SUB_PROTO_IFATTACHDOMAIN, SI_ORDER_ANY,
tcp_vnet_init, NULL);		tcp_vnet_init, NULL);

▲ Show 20 Lines • Show All 1,289 Lines • ▼ Show 20 Lines	#endif
KASSERT(tp->t_state != TCPS_TIME_WAIT, ("%s: TCPS_TIME_WAIT",		KASSERT(tp->t_state != TCPS_TIME_WAIT, ("%s: TCPS_TIME_WAIT",
__func__));		__func__));

#ifdef TCPPCAP		#ifdef TCPPCAP
/* Save segment, if requested. */		/* Save segment, if requested. */
tcp_pcap_add(th, m, &(tp->t_inpkts));		tcp_pcap_add(th, m, &(tp->t_inpkts));
#endif		#endif

		if ((thflags & TH_SYN) && (thflags & TH_FIN) && V_drop_synfin) {
		gnnUnsubmitted Not Done Inline Actions I'd like some clarifying parentheses here as well as in all the other similar if statements below. gnn: I'd like some clarifying parentheses here as well as in all the other similar if statements…
		if ((s = tcp_log_addrs(inc, th, NULL, NULL))) {
		log(LOG_DEBUG, "%s; %s: "
		"SYN\|FIN segment ignored (based on "
		"sysctl setting)\n", s, __func__);
		free(s, M_TCPLOG);
		}
		goto drop;
		}

/*		/*
* Segment received on connection.		* Segment received on connection.
* Reset idle time and keep-alive timer.		* Reset idle time and keep-alive timer.
* XXX: This should be done after segment		* XXX: This should be done after segment
* validation to ignore broken/spoofed segs.		* validation to ignore broken/spoofed segs.
*/		*/
tp->t_rcvtime = ticks;		tp->t_rcvtime = ticks;

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