/*- * Copyright (c) 2013 Gleb Smirnoff * Copyright (c) 1983, 1988, 1993 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #if 0 #ifndef lint static char sccsid[] = "@(#)if.c 8.3 (Berkeley) 4/28/95"; #endif /* not lint */ #endif #include __FBSDID("$FreeBSD$"); #include #include #include #include #include #include #include #include #include #include #include #include #include #ifdef PF #include #include #endif #include #include #include #include #ifdef INET6 #include #endif #include #include #include #include #include #include #include #include #include #include "netstat.h" static void sidewaysintpr(void); #ifdef PF static const char* pfsyncacts[] = { /* PFSYNC_ACT_CLR */ "clear all request", /* PFSYNC_ACT_INS */ "state insert", /* PFSYNC_ACT_INS_ACK */ "state inserted ack", /* PFSYNC_ACT_UPD */ "state update", /* PFSYNC_ACT_UPD_C */ "compressed state update", /* PFSYNC_ACT_UPD_REQ */ "uncompressed state request", /* PFSYNC_ACT_DEL */ "state delete", /* PFSYNC_ACT_DEL_C */ "compressed state delete", /* PFSYNC_ACT_INS_F */ "fragment insert", /* PFSYNC_ACT_DEL_F */ "fragment delete", /* PFSYNC_ACT_BUS */ "bulk update mark", /* PFSYNC_ACT_TDB */ "TDB replay counter update", /* PFSYNC_ACT_EOF */ "end of frame mark", }; static const char* pfsyncacts_name[] = { /* PFSYNC_ACT_CLR */ "clear-all-request", /* PFSYNC_ACT_INS */ "state-insert", /* PFSYNC_ACT_INS_ACK */ "state-inserted-ack", /* PFSYNC_ACT_UPD */ "state-update", /* PFSYNC_ACT_UPD_C */ "compressed-state-update", /* PFSYNC_ACT_UPD_REQ */ "uncompressed-state-request", /* PFSYNC_ACT_DEL */ "state-delete", /* PFSYNC_ACT_DEL_C */ "compressed-state-delete", /* PFSYNC_ACT_INS_F */ "fragment-insert", /* PFSYNC_ACT_DEL_F */ "fragment-delete", /* PFSYNC_ACT_BUS */ "bulk-update-mark", /* PFSYNC_ACT_TDB */ "TDB-replay-counter-update", /* PFSYNC_ACT_EOF */ "end-of-frame-mark", }; static void pfsync_acts_stats(const char *list, const char *desc, uint64_t *a) { int i; xo_open_list(list); for (i = 0; i < PFSYNC_ACT_MAX; i++, a++) { if (*a || sflag <= 1) { xo_open_instance(list); xo_emit("\t\t{e:name}{:count/%ju} {N:/%s%s %s}\n", pfsyncacts_name[i], (uintmax_t)(*a), pfsyncacts[i], plural(*a), desc); xo_close_instance(list); } } xo_close_list(list); } /* * Dump pfsync statistics structure. */ void pfsync_stats(u_long off, const char *name, int af1 __unused, int proto __unused) { struct pfsyncstats pfsyncstat, zerostat; size_t len = sizeof(struct pfsyncstats); if (live) { if (zflag) memset(&zerostat, 0, len); if (sysctlbyname("net.pfsync.stats", &pfsyncstat, &len, zflag ? &zerostat : NULL, zflag ? len : 0) < 0) { if (errno != ENOENT) warn("sysctl: net.pfsync.stats"); return; } } else kread(off, &pfsyncstat, len); xo_emit("{T:/%s}:\n", name); xo_open_container(name); #define p(f, m) if (pfsyncstat.f || sflag <= 1) \ xo_emit(m, (uintmax_t)pfsyncstat.f, plural(pfsyncstat.f)) p(pfsyncs_ipackets, "\t{:received-inet-packets/%ju} " "{N:/packet%s received (IPv4)}\n"); p(pfsyncs_ipackets6, "\t{:received-inet6-packets/%ju} " "{N:/packet%s received (IPv6)}\n"); pfsync_acts_stats("input-histogram", "received", &pfsyncstat.pfsyncs_iacts[0]); p(pfsyncs_badif, "\t\t/{:dropped-bad-interface/%ju} " "{N:/packet%s discarded for bad interface}\n"); p(pfsyncs_badttl, "\t\t{:dropped-bad-ttl/%ju} " "{N:/packet%s discarded for bad ttl}\n"); p(pfsyncs_hdrops, "\t\t{:dropped-short-header/%ju} " "{N:/packet%s shorter than header}\n"); p(pfsyncs_badver, "\t\t{:dropped-bad-version/%ju} " "{N:/packet%s discarded for bad version}\n"); p(pfsyncs_badauth, "\t\t{:dropped-bad-auth/%ju} " "{N:/packet%s discarded for bad HMAC}\n"); p(pfsyncs_badact,"\t\t{:dropped-bad-action/%ju} " "{N:/packet%s discarded for bad action}\n"); p(pfsyncs_badlen, "\t\t{:dropped-short/%ju} " "{N:/packet%s discarded for short packet}\n"); p(pfsyncs_badval, "\t\t{:dropped-bad-values/%ju} " "{N:/state%s discarded for bad values}\n"); p(pfsyncs_stale, "\t\t{:dropped-stale-state/%ju} " "{N:/stale state%s}\n"); p(pfsyncs_badstate, "\t\t{:dropped-failed-lookup/%ju} " "{N:/failed state lookup\\/insert%s}\n"); p(pfsyncs_opackets, "\t{:sent-inet-packets/%ju} " "{N:/packet%s sent (IPv4})\n"); p(pfsyncs_opackets6, "\t{:send-inet6-packets/%ju} " "{N:/packet%s sent (IPv6})\n"); pfsync_acts_stats("output-histogram", "sent", &pfsyncstat.pfsyncs_oacts[0]); p(pfsyncs_onomem, "\t\t{:discarded-no-memory/%ju} " "{N:/failure%s due to mbuf memory error}\n"); p(pfsyncs_oerrors, "\t\t{:send-errors/%ju} " "{N:/send error%s}\n"); #undef p xo_close_container(name); } #endif /* PF */ /* * Display a formatted value, or a '-' in the same space. */ static void show_stat(const char *fmt, int width, const char *name, u_long value, short showvalue, int div1000) { const char *lsep, *rsep; char newfmt[64]; lsep = ""; if (strncmp(fmt, "LS", 2) == 0) { lsep = " "; fmt += 2; } rsep = " "; if (strncmp(fmt, "NRS", 3) == 0) { rsep = ""; fmt += 3; } if (showvalue == 0) { /* Print just dash. */ xo_emit("{P:/%s}{D:/%*s}{P:/%s}", lsep, width, "-", rsep); return; } /* * XXX: workaround {P:} modifier can't be empty and doesn't seem to * take args... so we need to conditionally include it in the format. */ #define maybe_pad(pad) do { \ if (strlen(pad)) { \ snprintf(newfmt, sizeof(newfmt), "{P:%s}", pad); \ xo_emit(newfmt); \ } \ } while (0) if (hflag) { char buf[5]; /* Format in human readable form. */ humanize_number(buf, sizeof(buf), (int64_t)value, "", HN_AUTOSCALE, HN_NOSPACE | HN_DECIMAL | \ ((div1000) ? HN_DIVISOR_1000 : 0)); maybe_pad(lsep); snprintf(newfmt, sizeof(newfmt), "{:%s/%%%ds}", name, width); xo_emit(newfmt, buf); maybe_pad(rsep); } else { /* Construct the format string. */ maybe_pad(lsep); snprintf(newfmt, sizeof(newfmt), "{:%s/%%%d%s}", name, width, fmt); xo_emit(newfmt, value); maybe_pad(rsep); } } /* * Find next multiaddr for a given interface name. */ static struct ifmaddrs * next_ifma(struct ifmaddrs *ifma, const char *name, const sa_family_t family) { for(; ifma != NULL; ifma = ifma->ifma_next) { struct sockaddr_dl *sdl; sdl = (struct sockaddr_dl *)ifma->ifma_name; if (ifma->ifma_addr->sa_family == family && strcmp(sdl->sdl_data, name) == 0) break; } return (ifma); } /* * Print a description of the network interfaces. */ void intpr(void (*pfunc)(char *), int af) { struct ifaddrs *ifap, *ifa; struct ifmaddrs *ifmap, *ifma; if (interval) return sidewaysintpr(); if (getifaddrs(&ifap) != 0) err(EX_OSERR, "getifaddrs"); if (aflag && getifmaddrs(&ifmap) != 0) err(EX_OSERR, "getifmaddrs"); xo_open_list("interface"); if (!pfunc) { if (Wflag) xo_emit("{T:/%-7.7s}", "Name"); else xo_emit("{T:/%-5.5s}", "Name"); xo_emit(" {T:/%5.5s} {T:/%-13.13s} {T:/%-17.17s} {T:/%8.8s} " "{T:/%5.5s} {T:/%5.5s}", "Mtu", "Network", "Address", "Ipkts", "Ierrs", "Idrop"); if (bflag) xo_emit(" {T:/%10.10s}","Ibytes"); xo_emit(" {T:/%8.8s} {T:/%5.5s}", "Opkts", "Oerrs"); if (bflag) xo_emit(" {T:/%10.10s}","Obytes"); xo_emit(" {T:/%5s}", "Coll"); if (dflag) xo_emit(" {T:/%s}", "Drop"); xo_emit("\n"); } for (ifa = ifap; ifa; ifa = ifa->ifa_next) { bool network = false, link = false; char *name, *xname, buf[IFNAMSIZ+1]; if (interface != NULL && strcmp(ifa->ifa_name, interface) != 0) continue; name = ifa->ifa_name; if (pfunc) { (*pfunc)(name); /* * Skip all ifaddrs belonging to same interface. */ while(ifa->ifa_next != NULL && (strcmp(ifa->ifa_next->ifa_name, name) == 0)) { ifa = ifa->ifa_next; } continue; } if (af != AF_UNSPEC && ifa->ifa_addr->sa_family != af) continue; xo_open_instance("interface"); if ((ifa->ifa_flags & IFF_UP) == 0) { xname = stpcpy(buf, name); *xname++ = '*'; *xname = '\0'; xname = buf; } else xname = name; if (Wflag) xo_emit("{etk:name/%s}{e:flags/0x%x}{d:/%7.7s}", name, ifa->ifa_flags, xname); else xo_emit("{etk:name/%s}{e:flags/0x%x}{d:/%5.5s}", name, ifa->ifa_flags, xname); #define IFA_MTU(ifa) (((struct if_data *)(ifa)->ifa_data)->ifi_mtu) show_stat("lu", 6, "mtu", IFA_MTU(ifa), IFA_MTU(ifa), 0); #undef IFA_MTU switch (ifa->ifa_addr->sa_family) { case AF_UNSPEC: xo_emit("{:network/%-13.13s} ", "none"); xo_emit("{:address/%-15.15s} ", "none"); break; case AF_INET: if (Wflag) { xo_emit("{t:network/%-13s} ", netname(ifa->ifa_addr, ifa->ifa_netmask)); xo_emit("{t:address/%-17s} ", routename(ifa->ifa_addr, numeric_addr)); } else { xo_emit("{t:network/%-13.13s} ", netname(ifa->ifa_addr, ifa->ifa_netmask)); xo_emit("{t:address/%-17.17s} ", routename(ifa->ifa_addr, numeric_addr)); } network = true; break; #ifdef INET6 case AF_INET6: if (Wflag) { xo_emit("{t:network/%-13s} ", netname(ifa->ifa_addr, ifa->ifa_netmask)); xo_emit("{t:address/%-17s} ", routename(ifa->ifa_addr, numeric_addr)); } else { xo_emit("{t:network/%-13.13s} ", netname(ifa->ifa_addr, ifa->ifa_netmask)); xo_emit("{t:address/%-17.17s} ", routename(ifa->ifa_addr, numeric_addr)); } network = true; break; #endif /* INET6 */ case AF_LINK: { struct sockaddr_dl *sdl; char linknum[10]; sdl = (struct sockaddr_dl *)ifa->ifa_addr; sprintf(linknum, "", sdl->sdl_index); xo_emit("{t:network/%-13.13s} ", linknum); if (sdl->sdl_nlen == 0 && sdl->sdl_alen == 0 && sdl->sdl_slen == 0) xo_emit("{P: }"); else xo_emit("{:address/%*s}", 32 - 3 * sdl->sdl_alen, routename(ifa->ifa_addr, 1)); link = true; break; } } #define IFA_STAT(s) (((struct if_data *)ifa->ifa_data)->ifi_ ## s) show_stat("lu", 8, "received-packets", IFA_STAT(ipackets), link|network, 1); show_stat("lu", 5, "received-errors", IFA_STAT(ierrors), link, 1); show_stat("lu", 5, "dropped-packets", IFA_STAT(iqdrops), link, 1); if (bflag) show_stat("lu", 10, "received-bytes", IFA_STAT(ibytes), link|network, 0); show_stat("lu", 8, "sent-packets", IFA_STAT(opackets), link|network, 1); show_stat("lu", 5, "send-errors", IFA_STAT(oerrors), link, 1); if (bflag) show_stat("lu", 10, "sent-bytes", IFA_STAT(obytes), link|network, 0); show_stat("NRSlu", 5, "collisions", IFA_STAT(collisions), link, 1); if (dflag) show_stat("LSlu", 5, "dropped-packets", IFA_STAT(oqdrops), link, 1); xo_emit("\n"); if (!aflag) { xo_close_instance("interface"); continue; } /* * Print family's multicast addresses. */ xo_open_list("multicast-address"); for (ifma = next_ifma(ifmap, ifa->ifa_name, ifa->ifa_addr->sa_family); ifma != NULL; ifma = next_ifma(ifma, ifa->ifa_name, ifa->ifa_addr->sa_family)) { const char *fmt = NULL; xo_open_instance("multicast-address"); switch (ifma->ifma_addr->sa_family) { case AF_LINK: { struct sockaddr_dl *sdl; sdl = (struct sockaddr_dl *)ifma->ifma_addr; if (sdl->sdl_type != IFT_ETHER && sdl->sdl_type != IFT_FDDI) break; } /* FALLTHROUGH */ case AF_INET: #ifdef INET6 case AF_INET6: #endif /* INET6 */ fmt = routename(ifma->ifma_addr, numeric_addr); break; } if (fmt) { if (Wflag) xo_emit("{P:/%27s }" "{t:address/%-17s/}", "", fmt); else xo_emit("{P:/%25s }" "{t:address/%-17.17s/}", "", fmt); if (ifma->ifma_addr->sa_family == AF_LINK) { xo_emit(" {:received-packets/%8lu}", IFA_STAT(imcasts)); xo_emit("{P:/%*s}", bflag? 17 : 6, ""); xo_emit(" {:sent-packets/%8lu}", IFA_STAT(omcasts)); } xo_emit("\n"); } xo_close_instance("multicast-address"); ifma = ifma->ifma_next; } xo_close_list("multicast-address"); xo_close_instance("interface"); } xo_close_list("interface"); freeifaddrs(ifap); if (aflag) freeifmaddrs(ifmap); } struct iftot { u_long ift_ip; /* input packets */ u_long ift_ie; /* input errors */ u_long ift_id; /* input drops */ u_long ift_op; /* output packets */ u_long ift_oe; /* output errors */ u_long ift_od; /* output drops */ u_long ift_co; /* collisions */ u_long ift_ib; /* input bytes */ u_long ift_ob; /* output bytes */ }; /* * Obtain stats for interface(s). */ static void fill_iftot(struct iftot *st) { struct ifaddrs *ifap, *ifa; bool found = false; if (getifaddrs(&ifap) != 0) xo_err(EX_OSERR, "getifaddrs"); bzero(st, sizeof(*st)); for (ifa = ifap; ifa; ifa = ifa->ifa_next) { if (ifa->ifa_addr->sa_family != AF_LINK) continue; if (interface) { if (strcmp(ifa->ifa_name, interface) == 0) found = true; else continue; } st->ift_ip += IFA_STAT(ipackets); st->ift_ie += IFA_STAT(ierrors); st->ift_id += IFA_STAT(iqdrops); st->ift_ib += IFA_STAT(ibytes); st->ift_op += IFA_STAT(opackets); st->ift_oe += IFA_STAT(oerrors); st->ift_od += IFA_STAT(oqdrops); st->ift_ob += IFA_STAT(obytes); st->ift_co += IFA_STAT(collisions); } if (interface && found == false) xo_err(EX_DATAERR, "interface %s not found", interface); freeifaddrs(ifap); } /* * Set a flag to indicate that a signal from the periodic itimer has been * caught. */ static sig_atomic_t signalled; static void catchalarm(int signo __unused) { signalled = true; } /* * Print a running summary of interface statistics. * Repeat display every interval seconds, showing statistics * collected over that interval. Assumes that interval is non-zero. * First line printed at top of screen is always cumulative. */ static void sidewaysintpr(void) { struct iftot ift[2], *new, *old; struct itimerval interval_it; int oldmask, line; new = &ift[0]; old = &ift[1]; fill_iftot(old); (void)signal(SIGALRM, catchalarm); signalled = false; interval_it.it_interval.tv_sec = interval; interval_it.it_interval.tv_usec = 0; interval_it.it_value = interval_it.it_interval; setitimer(ITIMER_REAL, &interval_it, NULL); xo_open_list("interface-statistics"); banner: xo_emit("{T:/%17s} {T:/%14s} {T:/%16s}\n", "input", interface != NULL ? interface : "(Total)", "output"); xo_emit("{T:/%10s} {T:/%5s} {T:/%5s} {T:/%10s} {T:/%10s} {T:/%5s} " "{T:/%10s} {T:/%5s}", "packets", "errs", "idrops", "bytes", "packets", "errs", "bytes", "colls"); if (dflag) xo_emit(" {T:/%5.5s}", "drops"); xo_emit("\n"); xo_flush(); line = 0; loop: if ((noutputs != 0) && (--noutputs == 0)) { xo_close_list("interface-statistics"); return; } oldmask = sigblock(sigmask(SIGALRM)); while (!signalled) sigpause(0); signalled = false; sigsetmask(oldmask); line++; fill_iftot(new); xo_open_instance("stats"); show_stat("lu", 10, "received-packets", new->ift_ip - old->ift_ip, 1, 1); show_stat("lu", 5, "received-errors", new->ift_ie - old->ift_ie, 1, 1); show_stat("lu", 5, "dropped-packets", new->ift_id - old->ift_id, 1, 1); show_stat("lu", 10, "received-bytes", new->ift_ib - old->ift_ib, 1, 0); show_stat("lu", 10, "sent-packets", new->ift_op - old->ift_op, 1, 1); show_stat("lu", 5, "send-errors", new->ift_oe - old->ift_oe, 1, 1); show_stat("lu", 10, "sent-bytes", new->ift_ob - old->ift_ob, 1, 0); show_stat("NRSlu", 5, "collisions", new->ift_co - old->ift_co, 1, 1); if (dflag) show_stat("LSlu", 5, "dropped-packets", new->ift_od - old->ift_od, 1, 1); xo_close_instance("stats"); xo_emit("\n"); xo_flush(); if (new == &ift[0]) { new = &ift[1]; old = &ift[0]; } else { new = &ift[0]; old = &ift[1]; } if (line == 21) goto banner; else goto loop; /* NOTREACHED */ }