Make IGMP stats per-cpu.
This commit is contained in:
thorpej
parent
881a947288
commit
83dd106948
@ -1,4 +1,4 @@
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/* $NetBSD: igmp.c,v 1.45 2007/04/25 00:11:18 dyoung Exp $ */
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/* $NetBSD: igmp.c,v 1.46 2008/04/15 16:02:03 thorpej Exp $ */
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/*
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* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
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@ -40,7 +40,7 @@
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: igmp.c,v 1.45 2007/04/25 00:11:18 dyoung Exp $");
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__KERNEL_RCSID(0, "$NetBSD: igmp.c,v 1.46 2008/04/15 16:02:03 thorpej Exp $");
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#include "opt_mrouting.h"
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@ -49,6 +49,8 @@ __KERNEL_RCSID(0, "$NetBSD: igmp.c,v 1.45 2007/04/25 00:11:18 dyoung Exp $");
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#include <sys/socket.h>
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#include <sys/protosw.h>
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#include <sys/systm.h>
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#include <sys/sysctl.h>
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#include <sys/percpu.h>
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#include <net/if.h>
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#include <net/route.h>
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@ -67,7 +69,16 @@ __KERNEL_RCSID(0, "$NetBSD: igmp.c,v 1.45 2007/04/25 00:11:18 dyoung Exp $");
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POOL_INIT(igmp_rti_pool, sizeof(struct router_info), 0, 0, 0, "igmppl", NULL,
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IPL_SOFTNET);
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struct igmpstat igmpstat;
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static percpu_t *igmpstat_percpu;
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#define IGMP_STATINC(x) \
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do { \
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uint64_t *_igmps_ = percpu_getref(igmpstat_percpu); \
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_igmps_[x]++; \
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percpu_putref(igmpstat_percpu); \
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} while (/*CONSTCOND*/0)
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int igmp_timers_are_running;
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static LIST_HEAD(, router_info) rti_head = LIST_HEAD_INITIALIZER(rti_head);
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@ -139,6 +150,13 @@ rti_delete(struct ifnet *ifp) /* MUST be called at splsoftnet */
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}
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}
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void
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igmp_init(void)
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{
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igmpstat_percpu = percpu_alloc(sizeof(uint64_t) * IGMP_NSTATS);
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}
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void
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igmp_input(struct mbuf *m, ...)
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{
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@ -161,7 +179,7 @@ igmp_input(struct mbuf *m, ...)
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proto = va_arg(ap, int);
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va_end(ap);
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++igmpstat.igps_rcv_total;
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IGMP_STATINC(IGMP_STAT_RCV_TOTAL);
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/*
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* Validate lengths
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@ -169,14 +187,14 @@ igmp_input(struct mbuf *m, ...)
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minlen = iphlen + IGMP_MINLEN;
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ip_len = ntohs(ip->ip_len);
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if (ip_len < minlen) {
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++igmpstat.igps_rcv_tooshort;
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IGMP_STATINC(IGMP_STAT_RCV_TOOSHORT);
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m_freem(m);
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return;
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}
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if (((m->m_flags & M_EXT) && (ip->ip_src.s_addr & IN_CLASSA_NET) == 0)
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|| m->m_len < minlen) {
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if ((m = m_pullup(m, minlen)) == 0) {
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++igmpstat.igps_rcv_tooshort;
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IGMP_STATINC(IGMP_STAT_RCV_TOOSHORT);
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return;
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}
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ip = mtod(m, struct ip *);
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@ -190,7 +208,7 @@ igmp_input(struct mbuf *m, ...)
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igmp = mtod(m, struct igmp *);
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/* No need to assert alignment here. */
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if (in_cksum(m, ip_len - iphlen)) {
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++igmpstat.igps_rcv_badsum;
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IGMP_STATINC(IGMP_STAT_RCV_BADSUM);
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m_freem(m);
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return;
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}
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@ -200,7 +218,7 @@ igmp_input(struct mbuf *m, ...)
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switch (igmp->igmp_type) {
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case IGMP_HOST_MEMBERSHIP_QUERY:
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++igmpstat.igps_rcv_queries;
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IGMP_STATINC(IGMP_STAT_RCV_QUERIES);
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if (ifp->if_flags & IFF_LOOPBACK)
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break;
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@ -213,7 +231,7 @@ igmp_input(struct mbuf *m, ...)
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rti->rti_age = 0;
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if (ip->ip_dst.s_addr != INADDR_ALLHOSTS_GROUP) {
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++igmpstat.igps_rcv_badqueries;
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IGMP_STATINC(IGMP_STAT_RCV_BADQUERIES);
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m_freem(m);
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return;
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}
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@ -238,7 +256,7 @@ igmp_input(struct mbuf *m, ...)
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}
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} else {
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if (!IN_MULTICAST(ip->ip_dst.s_addr)) {
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++igmpstat.igps_rcv_badqueries;
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IGMP_STATINC(IGMP_STAT_RCV_BADQUERIES);
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m_freem(m);
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return;
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}
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@ -288,14 +306,14 @@ igmp_input(struct mbuf *m, ...)
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break;
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case IGMP_v1_HOST_MEMBERSHIP_REPORT:
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++igmpstat.igps_rcv_reports;
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IGMP_STATINC(IGMP_STAT_RCV_REPORTS);
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if (ifp->if_flags & IFF_LOOPBACK)
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break;
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if (!IN_MULTICAST(igmp->igmp_group.s_addr) ||
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!in_hosteq(igmp->igmp_group, ip->ip_dst)) {
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++igmpstat.igps_rcv_badreports;
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IGMP_STATINC(IGMP_STAT_RCV_BADREPORTS);
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m_freem(m);
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return;
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}
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@ -322,7 +340,7 @@ igmp_input(struct mbuf *m, ...)
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IN_LOOKUP_MULTI(igmp->igmp_group, ifp, inm);
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if (inm != NULL) {
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inm->inm_timer = 0;
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++igmpstat.igps_rcv_ourreports;
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IGMP_STATINC(IGMP_STAT_RCV_OURREPORTS);
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switch (inm->inm_state) {
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case IGMP_IDLE_MEMBER:
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@ -354,14 +372,14 @@ igmp_input(struct mbuf *m, ...)
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break;
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#endif
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++igmpstat.igps_rcv_reports;
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IGMP_STATINC(IGMP_STAT_RCV_REPORTS);
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if (ifp->if_flags & IFF_LOOPBACK)
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break;
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if (!IN_MULTICAST(igmp->igmp_group.s_addr) ||
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!in_hosteq(igmp->igmp_group, ip->ip_dst)) {
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++igmpstat.igps_rcv_badreports;
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IGMP_STATINC(IGMP_STAT_RCV_BADREPORTS);
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m_freem(m);
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return;
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}
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@ -390,7 +408,7 @@ igmp_input(struct mbuf *m, ...)
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IN_LOOKUP_MULTI(igmp->igmp_group, ifp, inm);
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if (inm != NULL) {
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inm->inm_timer = 0;
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++igmpstat.igps_rcv_ourreports;
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IGMP_STATINC(IGMP_STAT_RCV_OURREPORTS);
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switch (inm->inm_state) {
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case IGMP_DELAYING_MEMBER:
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@ -573,7 +591,7 @@ igmp_sendpkt(struct in_multi *inm, int type)
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ip_output(m, NULL, NULL, IP_MULTICASTOPTS, &imo, NULL);
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++igmpstat.igps_snd_reports;
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IGMP_STATINC(IGMP_STAT_SND_REPORTS);
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}
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void
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@ -581,3 +599,63 @@ igmp_purgeif(struct ifnet *ifp) /* MUST be called at splsoftnet() */
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{
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rti_delete(ifp); /* manipulates pools */
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}
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static void
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igmpstat_convert_to_user_cb(void *v1, void *v2, struct cpu_info *ci)
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{
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uint64_t *igmpsc = v1;
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uint64_t *igmps = v2;
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u_int i;
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for (i = 0; i < IGMP_NSTATS; i++)
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igmps[i] += igmpsc[i];
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}
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static void
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igmpstat_convert_to_user(uint64_t *igmps)
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{
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memset(igmps, 0, sizeof(uint64_t) * IGMP_NSTATS);
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percpu_foreach(igmpstat_percpu, igmpstat_convert_to_user_cb, igmps);
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}
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static int
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sysctl_net_inet_igmp_stats(SYSCTLFN_ARGS)
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{
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struct sysctlnode node;
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uint64_t igmps[IGMP_NSTATS];
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igmpstat_convert_to_user(igmps);
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node = *rnode;
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node.sysctl_data = igmps;
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node.sysctl_size = sizeof(igmps);
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return (sysctl_lookup(SYSCTLFN_CALL(&node)));
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}
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SYSCTL_SETUP(sysctl_net_inet_igmp_setup, "sysctl net.inet.igmp subtree setup")
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{
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sysctl_createv(clog, 0, NULL, NULL,
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CTLFLAG_PERMANENT,
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CTLTYPE_NODE, "net", NULL,
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NULL, 0, NULL, 0,
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CTL_NET, CTL_EOL);
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sysctl_createv(clog, 0, NULL, NULL,
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CTLFLAG_PERMANENT,
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CTLTYPE_NODE, "inet", NULL,
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NULL, 0, NULL, 0,
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CTL_NET, PF_INET, CTL_EOL);
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sysctl_createv(clog, 0, NULL, NULL,
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CTLFLAG_PERMANENT,
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CTLTYPE_NODE, "igmp",
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SYSCTL_DESCR("Internet Group Management Protocol"),
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NULL, 0, NULL, 0,
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CTL_NET, PF_INET, IPPROTO_IGMP, CTL_EOL);
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sysctl_createv(clog, 0, NULL, NULL,
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CTLFLAG_PERMANENT,
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CTLTYPE_STRUCT, "stats",
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SYSCTL_DESCR("IGMP statistics"),
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sysctl_net_inet_igmp_stats, 0, NULL, 0,
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CTL_NET, PF_INET, IPPROTO_IGMP, CTL_CREATE, CTL_EOL);
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}
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@ -1,4 +1,4 @@
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/* $NetBSD: igmp_var.h,v 1.22 2005/12/10 23:36:23 elad Exp $ */
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/* $NetBSD: igmp_var.h,v 1.23 2008/04/15 16:02:03 thorpej Exp $ */
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/*
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* Copyright (c) 1992, 1993
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@ -85,21 +85,19 @@
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* MULTICAST 1.3
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*/
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struct igmpstat {
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u_quad_t igps_rcv_total; /* total IGMP messages received */
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u_quad_t igps_rcv_tooshort; /* received with too few bytes */
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u_quad_t igps_rcv_badsum; /* received with bad checksum */
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u_quad_t igps_rcv_queries; /* received membership queries */
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u_quad_t igps_rcv_badqueries; /* received invalid queries */
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u_quad_t igps_rcv_reports; /* received membership reports */
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u_quad_t igps_rcv_badreports; /* received invalid reports */
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u_quad_t igps_rcv_ourreports; /* received reports for our groups */
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u_quad_t igps_snd_reports; /* sent membership reports */
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};
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#define IGMP_STAT_RCV_TOTAL 1 /* total IGMP messages received */
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#define IGMP_STAT_RCV_TOOSHORT 2 /* received with too few bytes */
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#define IGMP_STAT_RCV_BADSUM 3 /* received with bad checksum */
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#define IGMP_STAT_RCV_QUERIES 4 /* received membership queries */
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#define IGMP_STAT_RCV_BADQUERIES 5 /* received invalid queries */
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#define IGMP_STAT_RCV_REPORTS 6 /* received membership reports */
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#define IGMP_STAT_RCV_BADREPORTS 7 /* received invalid reports */
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#define IGMP_STAT_RCV_OURREPORTS 8 /* received reports for our groups */
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#define IGMP_STAT_SND_REPORTS 9 /* sent membership reports */
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#define IGMP_NSTATS 10
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#ifdef _KERNEL
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extern struct igmpstat igmpstat;
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/*
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* Macro to compute a random timer value between 1 and (IGMP_MAX_REPORTING_
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* DELAY * countdown frequency). We assume that the routine random()
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@ -113,12 +111,13 @@ extern struct igmpstat igmpstat;
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#define IGMP_HDR_ALIGNED_P(ig) ((((vaddr_t) (ig)) & 3) == 0)
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#endif
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void igmp_init(void);
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void igmp_input(struct mbuf *, ...);
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int igmp_joingroup(struct in_multi *);
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void igmp_leavegroup(struct in_multi *);
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void igmp_fasttimo(void);
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void igmp_slowtimo(void);
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void igmp_purgeif(struct ifnet *);
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#endif
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#endif /* _KERNEL */
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#endif /* !_NETINET_IGMP_VAR_H_ */
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@ -1,4 +1,4 @@
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/* $NetBSD: in_proto.c,v 1.91 2007/10/05 03:28:13 dyoung Exp $ */
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/* $NetBSD: in_proto.c,v 1.92 2008/04/15 16:02:03 thorpej Exp $ */
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/*
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* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
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@ -61,7 +61,7 @@
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: in_proto.c,v 1.91 2007/10/05 03:28:13 dyoung Exp $");
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__KERNEL_RCSID(0, "$NetBSD: in_proto.c,v 1.92 2008/04/15 16:02:03 thorpej Exp $");
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#include "opt_mrouting.h"
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#include "opt_eon.h" /* ISO CLNL over IP */
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@ -310,6 +310,7 @@ const struct protosw inetsw[] = {
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.pr_usrreq = rip_usrreq,
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.pr_fasttimo = igmp_fasttimo,
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.pr_slowtimo = igmp_slowtimo,
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.pr_init = igmp_init,
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},
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#ifdef PIM
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{ .pr_type = SOCK_RAW,
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@ -1,4 +1,4 @@
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/* $NetBSD: inet.c,v 1.86 2008/04/15 15:17:54 thorpej Exp $ */
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/* $NetBSD: inet.c,v 1.87 2008/04/15 16:02:04 thorpej Exp $ */
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/*
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* Copyright (c) 1983, 1988, 1993
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@ -34,7 +34,7 @@
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#if 0
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static char sccsid[] = "from: @(#)inet.c 8.4 (Berkeley) 4/20/94";
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#else
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__RCSID("$NetBSD: inet.c,v 1.86 2008/04/15 15:17:54 thorpej Exp $");
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__RCSID("$NetBSD: inet.c,v 1.87 2008/04/15 16:02:04 thorpej Exp $");
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#endif
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#endif /* not lint */
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@ -601,26 +601,35 @@ icmp_stats(u_long off, char *name)
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void
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igmp_stats(u_long off, char *name)
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{
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struct igmpstat igmpstat;
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uint64_t igmpstat[IGMP_NSTATS];
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if (use_sysctl) {
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size_t size = sizeof(igmpstat);
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if (sysctlbyname("net.inet.igmp.stats", igmpstat, &size,
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NULL, 0) == -1)
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err(1, "net.inet.igmp.stats");
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} else {
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if (off == 0)
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return;
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kread(off, (char *)&igmpstat, sizeof (igmpstat));
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kread(off, (char *)igmpstat, sizeof (igmpstat));
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}
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printf("%s:\n", name);
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#define p(f, m) if (igmpstat.f || sflag <= 1) \
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printf(m, (unsigned long long)igmpstat.f, plural(igmpstat.f))
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#define py(f, m) if (igmpstat.f || sflag <= 1) \
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printf(m, (unsigned long long)igmpstat.f, igmpstat.f != 1 ? "ies" : "y")
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p(igps_rcv_total, "\t%llu message%s received\n");
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p(igps_rcv_tooshort, "\t%llu message%s received with too few bytes\n");
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p(igps_rcv_badsum, "\t%llu message%s received with bad checksum\n");
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py(igps_rcv_queries, "\t%llu membership quer%s received\n");
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py(igps_rcv_badqueries, "\t%llu membership quer%s received with invalid field(s)\n");
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p(igps_rcv_reports, "\t%llu membership report%s received\n");
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p(igps_rcv_badreports, "\t%llu membership report%s received with invalid field(s)\n");
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p(igps_rcv_ourreports, "\t%llu membership report%s received for groups to which we belong\n");
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p(igps_snd_reports, "\t%llu membership report%s sent\n");
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#define p(f, m) if (igmpstat[f] || sflag <= 1) \
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printf(m, (unsigned long long)igmpstat[f], plural(igmpstat[f]))
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#define py(f, m) if (igmpstat[f] || sflag <= 1) \
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printf(m, (unsigned long long)igmpstat[f], igmpstat[f] != 1 ? "ies" : "y")
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p(IGMP_STAT_RCV_TOTAL, "\t%llu message%s received\n");
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p(IGMP_STAT_RCV_TOOSHORT, "\t%llu message%s received with too few bytes\n");
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p(IGMP_STAT_RCV_BADSUM, "\t%llu message%s received with bad checksum\n");
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py(IGMP_STAT_RCV_QUERIES, "\t%llu membership quer%s received\n");
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py(IGMP_STAT_RCV_BADQUERIES, "\t%llu membership quer%s received with invalid field(s)\n");
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p(IGMP_STAT_RCV_REPORTS, "\t%llu membership report%s received\n");
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p(IGMP_STAT_RCV_BADREPORTS, "\t%llu membership report%s received with invalid field(s)\n");
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p(IGMP_STAT_RCV_OURREPORTS, "\t%llu membership report%s received for groups to which we belong\n");
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p(IGMP_STAT_SND_REPORTS, "\t%llu membership report%s sent\n");
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#undef p
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#undef py
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}
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