/* $NetBSD: if.c,v 1.79.4.2 2015/01/08 11:47:11 martin Exp $ */ /* * 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. * 3. 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. */ #include #ifndef lint #if 0 static char sccsid[] = "from: @(#)if.c 8.2 (Berkeley) 2/21/94"; #else __RCSID("$NetBSD: if.c,v 1.79.4.2 2015/01/08 11:47:11 martin Exp $"); #endif #endif /* not lint */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "netstat.h" #include "rtutil.h" #include "prog_ops.h" #define MAXIF 100 #define HUMBUF_SIZE 7 struct iftot { char ift_name[IFNAMSIZ]; /* interface name */ u_quad_t ift_ip; /* input packets */ u_quad_t ift_ib; /* input bytes */ u_quad_t ift_ie; /* input errors */ u_quad_t ift_op; /* output packets */ u_quad_t ift_ob; /* output bytes */ u_quad_t ift_oe; /* output errors */ u_quad_t ift_co; /* collisions */ int ift_dr; /* drops */ }; static void print_addr(struct sockaddr *, struct sockaddr **, struct if_data *, struct ifnet *); static void sidewaysintpr(u_int, u_long); static void iftot_banner(struct iftot *); static void iftot_print_sum(struct iftot *, struct iftot *); static void iftot_print(struct iftot *, struct iftot *); static void catchalarm __P((int)); static void get_rtaddrs(int, struct sockaddr *, struct sockaddr **); static void fetchifs(void); static void intpr_sysctl(void); static void intpr_kvm(u_long, void (*)(const char *)); struct iftot iftot[MAXIF], ip_cur, ip_old, sum_cur, sum_old; bool signalled; /* set if alarm goes off "early" */ /* * Print a description of the network interfaces. * NOTE: ifnetaddr is the location of the kernel global "ifnet", * which is a TAILQ_HEAD. */ void intpr(int interval, u_long ifnetaddr, void (*pfunc)(const char *)) { if (interval) { sidewaysintpr((unsigned)interval, ifnetaddr); return; } if (use_sysctl) { intpr_sysctl(); } else { intpr_kvm(ifnetaddr, pfunc); } } static void intpr_header(void) { if (!sflag & !pflag) { if (bflag) { printf("%-5.5s %-5.5s %-13.13s %-17.17s " "%10.10s %10.10s", "Name", "Mtu", "Network", "Address", "Ibytes", "Obytes"); } else { printf("%-5.5s %-5.5s %-13.13s %-17.17s " "%8.8s %5.5s %8.8s %5.5s %5.5s", "Name", "Mtu", "Network", "Address", "Ipkts", "Ierrs", "Opkts", "Oerrs", "Colls"); } if (tflag) printf(" %4.4s", "Time"); if (dflag) printf(" %5.5s", "Drops"); putchar('\n'); } } static void intpr_sysctl(void) { struct if_msghdr *ifm; int mib[6] = { CTL_NET, AF_ROUTE, 0, 0, NET_RT_IFLIST, 0 }; char *buf = NULL, *next, *lim, *cp; struct rt_msghdr *rtm; struct ifa_msghdr *ifam; struct if_data *ifd = NULL; struct sockaddr *sa, *rti_info[RTAX_MAX]; struct sockaddr_dl *sdl; uint64_t total = 0; size_t len; char name[IFNAMSIZ + 1]; /* + 1 for `*' */ if (prog_sysctl(mib, 6, NULL, &len, NULL, 0) == -1) err(1, "sysctl"); if ((buf = malloc(len)) == NULL) err(1, NULL); if (prog_sysctl(mib, 6, buf, &len, NULL, 0) == -1) err(1, "sysctl"); intpr_header(); lim = buf + len; for (next = buf; next < lim; next += rtm->rtm_msglen) { rtm = (struct rt_msghdr *)next; if (rtm->rtm_version != RTM_VERSION) continue; switch (rtm->rtm_type) { case RTM_IFINFO: total = 0; ifm = (struct if_msghdr *)next; ifd = &ifm->ifm_data; sa = (struct sockaddr *)(ifm + 1); get_rtaddrs(ifm->ifm_addrs, sa, rti_info); sdl = (struct sockaddr_dl *)rti_info[RTAX_IFP]; if (sdl == NULL || sdl->sdl_family != AF_LINK) { continue; } bzero(name, sizeof(name)); if (sdl->sdl_nlen >= IFNAMSIZ) memcpy(name, sdl->sdl_data, IFNAMSIZ - 1); else if (sdl->sdl_nlen > 0) memcpy(name, sdl->sdl_data, sdl->sdl_nlen); if (interface != 0 && strcmp(name, interface) != 0) continue; /* mark inactive interfaces with a '*' */ cp = strchr(name, '\0'); if ((ifm->ifm_flags & IFF_UP) == 0) *cp++ = '*'; *cp = '\0'; if (qflag) { total = ifd->ifi_ibytes + ifd->ifi_obytes + ifd->ifi_ipackets + ifd->ifi_ierrors + ifd->ifi_opackets + ifd->ifi_oerrors + ifd->ifi_collisions; if (tflag) total += 0; // XXX-elad ifnet.if_timer; if (dflag) total += 0; // XXX-elad ifnet.if_snd.ifq_drops; if (total == 0) continue; } printf("%-5s %-5" PRIu64, name, ifd->ifi_mtu); print_addr(rti_info[RTAX_IFP], rti_info, ifd, NULL); break; case RTM_NEWADDR: if (qflag && total == 0) continue; if (interface != 0 && strcmp(name, interface) != 0) continue; ifam = (struct ifa_msghdr *)next; if ((ifam->ifam_addrs & (RTA_NETMASK | RTA_IFA | RTA_BRD)) == 0) break; sa = (struct sockaddr *)(ifam + 1); get_rtaddrs(ifam->ifam_addrs, sa, rti_info); printf("%-5s %-5" PRIu64, name, ifd->ifi_mtu); print_addr(rti_info[RTAX_IFA], rti_info, ifd, NULL); break; } } } union ifaddr_u { struct ifaddr ifa; struct in_ifaddr in; #ifdef INET6 struct in6_ifaddr in6; #endif /* INET6 */ }; static void intpr_kvm(u_long ifnetaddr, void (*pfunc)(const char *)) { struct ifnet ifnet; union ifaddr_u ifaddr; u_long ifaddraddr; struct ifnet_head ifhead; /* TAILQ_HEAD */ char name[IFNAMSIZ + 1]; /* + 1 for `*' */ if (ifnetaddr == 0) { printf("ifnet: symbol not defined\n"); return; } /* * Find the pointer to the first ifnet structure. Replace * the pointer to the TAILQ_HEAD with the actual pointer * to the first list element. */ if (kread(ifnetaddr, (char *)&ifhead, sizeof ifhead)) return; ifnetaddr = (u_long)ifhead.tqh_first; intpr_header(); ifaddraddr = 0; while (ifnetaddr || ifaddraddr) { char *cp; int n; if (ifaddraddr == 0) { if (kread(ifnetaddr, (char *)&ifnet, sizeof ifnet)) return; memmove(name, ifnet.if_xname, IFNAMSIZ); name[IFNAMSIZ - 1] = '\0'; /* sanity */ ifnetaddr = (u_long)ifnet.if_list.tqe_next; if (interface != 0 && strcmp(name, interface) != 0) continue; cp = strchr(name, '\0'); if (pfunc) { (*pfunc)(name); continue; } if ((ifnet.if_flags & IFF_UP) == 0) *cp++ = '*'; *cp = '\0'; ifaddraddr = (u_long)ifnet.if_addrlist.tqh_first; } if (vflag) n = strlen(name) < 5 ? 5 : strlen(name); else n = 5; printf("%-*.*s %-5llu ", n, n, name, (unsigned long long)ifnet.if_mtu); if (ifaddraddr == 0) { printf("%-13.13s ", "none"); printf("%-17.17s ", "none"); } else { struct sockaddr *sa; if (kread(ifaddraddr, (char *)&ifaddr, sizeof ifaddr)) { ifaddraddr = 0; continue; } #define CP(x) ((char *)(x)) cp = (CP(ifaddr.ifa.ifa_addr) - CP(ifaddraddr)) + CP(&ifaddr); sa = (struct sockaddr *)cp; print_addr(sa, (void *)&ifaddr, &ifnet.if_data, &ifnet); } ifaddraddr = (u_long)ifaddr.ifa.ifa_list.tqe_next; } } static void print_addr(struct sockaddr *sa, struct sockaddr **rtinfo, struct if_data *ifd, struct ifnet *ifnet) { char hexsep = '.'; /* for hexprint */ static const char hexfmt[] = "%02x%c"; /* for hexprint */ char hbuf[NI_MAXHOST]; /* for getnameinfo() */ #ifdef INET6 const int niflag = NI_NUMERICHOST; struct sockaddr_in6 *sin6, *netmask6; #endif struct sockaddr_in netmask; struct sockaddr_in *sin; char *cp; int n, m; switch (sa->sa_family) { case AF_UNSPEC: printf("%-13.13s ", "none"); printf("%-17.17s ", "none"); break; case AF_INET: sin = (struct sockaddr_in *)sa; if (use_sysctl) { netmask = *((struct sockaddr_in *)rtinfo[RTAX_NETMASK]); } else { struct in_ifaddr *ifaddr_in = (void *)rtinfo; netmask.sin_addr.s_addr = ifaddr_in->ia_subnetmask; } cp = netname4(sin, &netmask, nflag); if (vflag) n = strlen(cp) < 13 ? 13 : strlen(cp); else n = 13; printf("%-*.*s ", n, n, cp); cp = routename4(sin->sin_addr.s_addr, nflag); if (vflag) n = strlen(cp) < 17 ? 17 : strlen(cp); else n = 17; printf("%-*.*s ", n, n, cp); if (aflag && ifnet) { u_long multiaddr; struct in_multi inm; union ifaddr_u *ifaddr = (union ifaddr_u *)rtinfo; multiaddr = (u_long) ifaddr->in.ia_multiaddrs.lh_first; while (multiaddr != 0) { kread(multiaddr, (char *)&inm, sizeof inm); printf("\n%25s %-17.17s ", "", routename4( inm.inm_addr.s_addr, nflag)); multiaddr = (u_long)inm.inm_list.le_next; } } break; #ifdef INET6 case AF_INET6: sin6 = (struct sockaddr_in6 *)sa; inet6_getscopeid(sin6, INET6_IS_ADDR_LINKLOCAL); #ifdef __KAME__ if (!vflag) sin6->sin6_scope_id = 0; #endif if (use_sysctl) { netmask6 = (struct sockaddr_in6 *)rtinfo[RTAX_NETMASK]; } else { struct in6_ifaddr *ifaddr_in6 = (void *)rtinfo; netmask6 = &ifaddr_in6->ia_prefixmask; } cp = netname6(sin6, netmask6, nflag); if (vflag) n = strlen(cp) < 13 ? 13 : strlen(cp); else n = 13; printf("%-*.*s ", n, n, cp); if (getnameinfo((struct sockaddr *)sin6, sin6->sin6_len, hbuf, sizeof(hbuf), NULL, 0, niflag) != 0) { strlcpy(hbuf, "?", sizeof(hbuf)); } cp = hbuf; if (vflag) n = strlen(cp) < 17 ? 17 : strlen(cp); else n = 17; printf("%-*.*s ", n, n, cp); if (aflag && ifnet) { u_long multiaddr; struct in6_multi inm; struct sockaddr_in6 as6; union ifaddr_u *ifaddr = (union ifaddr_u *)rtinfo; multiaddr = (u_long) ifaddr->in6.ia6_multiaddrs.lh_first; while (multiaddr != 0) { kread(multiaddr, (char *)&inm, sizeof inm); memset(&as6, 0, sizeof(as6)); as6.sin6_len = sizeof(struct sockaddr_in6); as6.sin6_family = AF_INET6; as6.sin6_addr = inm.in6m_addr; inet6_getscopeid(&as6, INET6_IS_ADDR_MC_LINKLOCAL); if (getnameinfo((struct sockaddr *)&as6, as6.sin6_len, hbuf, sizeof(hbuf), NULL, 0, niflag) != 0) { strlcpy(hbuf, "??", sizeof(hbuf)); } cp = hbuf; if (vflag) n = strlen(cp) < 17 ? 17 : strlen(cp); else n = 17; printf("\n%25s %-*.*s ", "", n, n, cp); multiaddr = (u_long)inm.in6m_entry.le_next; } } break; #endif /*INET6*/ #ifndef SMALL case AF_APPLETALK: printf("atalk:%-7.7s ", atalk_print(sa,0x10)); printf("%-17.17s ", atalk_print(sa,0x0b)); break; #endif case AF_LINK: printf("%-13.13s ", ""); if (getnameinfo(sa, sa->sa_len, hbuf, sizeof(hbuf), NULL, 0, NI_NUMERICHOST) != 0) { strlcpy(hbuf, "?", sizeof(hbuf)); } cp = hbuf; if (vflag) n = strlen(cp) < 17 ? 17 : strlen(cp); else n = 17; printf("%-*.*s ", n, n, cp); break; default: m = printf("(%d)", sa->sa_family); for (cp = sa->sa_len + (char *)sa; --cp > sa->sa_data && (*cp == 0);) {} n = cp - sa->sa_data + 1; cp = sa->sa_data; while (--n >= 0) m += printf(hexfmt, *cp++ & 0xff, n > 0 ? hexsep : ' '); m = 32 - m; while (m-- > 0) putchar(' '); break; } if (bflag) { char humbuf[HUMBUF_SIZE]; if (hflag && humanize_number(humbuf, sizeof(humbuf), ifd->ifi_ibytes, "", HN_AUTOSCALE, HN_NOSPACE | HN_B) > 0) printf("%10s ", humbuf); else printf("%10llu ", (unsigned long long)ifd->ifi_ibytes); if (hflag && humanize_number(humbuf, sizeof(humbuf), ifd->ifi_obytes, "", HN_AUTOSCALE, HN_NOSPACE | HN_B) > 0) printf("%10s", humbuf); else printf("%10llu", (unsigned long long)ifd->ifi_obytes); } else { printf("%8llu %5llu %8llu %5llu %5llu", (unsigned long long)ifd->ifi_ipackets, (unsigned long long)ifd->ifi_ierrors, (unsigned long long)ifd->ifi_opackets, (unsigned long long)ifd->ifi_oerrors, (unsigned long long)ifd->ifi_collisions); } if (tflag) printf(" %4d", ifnet ? ifnet->if_timer : 0); if (dflag) printf(" %5d", ifnet ? ifnet->if_snd.ifq_drops : 0); putchar('\n'); } static void iftot_banner(struct iftot *ift) { if (bflag) printf("%7.7s in %8.8s %6.6s out %5.5s", ift->ift_name, " ", ift->ift_name, " "); else printf("%5.5s in %5.5s%5.5s out %5.5s %5.5s", ift->ift_name, " ", ift->ift_name, " ", " "); if (dflag) printf(" %5.5s", " "); if (bflag) printf(" %7.7s in %8.8s %6.6s out %5.5s", "total", " ", "total", " "); else printf(" %5.5s in %5.5s%5.5s out %5.5s %5.5s", "total", " ", "total", " ", " "); if (dflag) printf(" %5.5s", " "); putchar('\n'); if (bflag) printf("%10.10s %8.8s %10.10s %5.5s", "bytes", " ", "bytes", " "); else printf("%8.8s %5.5s %8.8s %5.5s %5.5s", "packets", "errs", "packets", "errs", "colls"); if (dflag) printf(" %5.5s", "drops"); if (bflag) printf(" %10.10s %8.8s %10.10s %5.5s", "bytes", " ", "bytes", " "); else printf(" %8.8s %5.5s %8.8s %5.5s %5.5s", "packets", "errs", "packets", "errs", "colls"); if (dflag) printf(" %5.5s", "drops"); putchar('\n'); fflush(stdout); } static void iftot_print(struct iftot *cur, struct iftot *old) { if (bflag) printf("%10" PRIu64 " %8.8s %10" PRIu64 " %5.5s", cur->ift_ib - old->ift_ib, " ", cur->ift_ob - old->ift_ob, " "); else printf("%8" PRIu64 " %5" PRIu64 " %8" PRIu64 " %5" PRIu64 " %5" PRIu64, cur->ift_ip - old->ift_ip, cur->ift_ie - old->ift_ie, cur->ift_op - old->ift_op, cur->ift_oe - old->ift_oe, cur->ift_co - old->ift_co); if (dflag) printf(" %5llu", /* XXX ifnet.if_snd.ifq_drops - ip->ift_dr); */ 0LL); } static void iftot_print_sum(struct iftot *cur, struct iftot *old) { if (bflag) printf(" %10" PRIu64 " %8.8s %10" PRIu64 " %5.5s", cur->ift_ib - old->ift_ib, " ", cur->ift_ob - old->ift_ob, " "); else printf(" %8" PRIu64 " %5" PRIu64 " %8" PRIu64 " %5" PRIu64 " %5" PRIu64, cur->ift_ip - old->ift_ip, cur->ift_ie - old->ift_ie, cur->ift_op - old->ift_op, cur->ift_oe - old->ift_oe, cur->ift_co - old->ift_co); if (dflag) printf(" %5llu", (unsigned long long)(cur->ift_dr - old->ift_dr)); } __dead static void sidewaysintpr_sysctl(unsigned interval) { sigset_t emptyset; int line; fetchifs(); if (ip_cur.ift_name[0] == '\0') { fprintf(stderr, "%s: %s: unknown interface\n", getprogname(), interface); exit(1); } (void)signal(SIGALRM, catchalarm); signalled = 0; (void)alarm(interval); banner: iftot_banner(&ip_cur); line = 0; bzero(&ip_old, sizeof(ip_old)); bzero(&sum_old, sizeof(sum_old)); loop: bzero(&sum_cur, sizeof(sum_cur)); fetchifs(); iftot_print(&ip_cur, &ip_old); ip_old = ip_cur; iftot_print_sum(&sum_cur, &sum_old); sum_old = sum_cur; putchar('\n'); fflush(stdout); line++; sigemptyset(&emptyset); if (!signalled) sigsuspend(&emptyset); signalled = 0; (void)alarm(interval); if (line == 21) goto banner; goto loop; /*NOTREACHED*/ } static void sidewaysintpr_kvm(unsigned interval, u_long off) { struct itimerval it; struct ifnet ifnet; u_long firstifnet; struct iftot *ip, *total; int line; struct iftot *lastif, *sum, *interesting; struct ifnet_head ifhead; /* TAILQ_HEAD */ int oldmask; /* * Find the pointer to the first ifnet structure. Replace * the pointer to the TAILQ_HEAD with the actual pointer * to the first list element. */ if (kread(off, (char *)&ifhead, sizeof ifhead)) return; firstifnet = (u_long)ifhead.tqh_first; lastif = iftot; sum = iftot + MAXIF - 1; total = sum - 1; interesting = (interface == NULL) ? iftot : NULL; for (off = firstifnet, ip = iftot; off;) { if (kread(off, (char *)&ifnet, sizeof ifnet)) break; memset(ip->ift_name, 0, sizeof(ip->ift_name)); snprintf(ip->ift_name, IFNAMSIZ, "%s", ifnet.if_xname); if (interface && strcmp(ifnet.if_xname, interface) == 0) interesting = ip; ip++; if (ip >= iftot + MAXIF - 2) break; off = (u_long)ifnet.if_list.tqe_next; } if (interesting == NULL) { fprintf(stderr, "%s: %s: unknown interface\n", getprogname(), interface); exit(1); } lastif = ip; (void)signal(SIGALRM, catchalarm); signalled = false; it.it_interval.tv_sec = it.it_value.tv_sec = interval; it.it_interval.tv_usec = it.it_value.tv_usec = 0; setitimer(ITIMER_REAL, &it, NULL); banner: if (bflag) printf("%7.7s in %8.8s %6.6s out %5.5s", interesting->ift_name, " ", interesting->ift_name, " "); else printf("%5.5s in %5.5s%5.5s out %5.5s %5.5s", interesting->ift_name, " ", interesting->ift_name, " ", " "); if (dflag) printf(" %5.5s", " "); if (lastif - iftot > 0) { if (bflag) printf(" %7.7s in %8.8s %6.6s out %5.5s", "total", " ", "total", " "); else printf(" %5.5s in %5.5s%5.5s out %5.5s %5.5s", "total", " ", "total", " ", " "); if (dflag) printf(" %5.5s", " "); } for (ip = iftot; ip < iftot + MAXIF; ip++) { ip->ift_ip = 0; ip->ift_ib = 0; ip->ift_ie = 0; ip->ift_op = 0; ip->ift_ob = 0; ip->ift_oe = 0; ip->ift_co = 0; ip->ift_dr = 0; } putchar('\n'); if (bflag) printf("%10.10s %8.8s %10.10s %5.5s", "bytes", " ", "bytes", " "); else printf("%8.8s %5.5s %8.8s %5.5s %5.5s", "packets", "errs", "packets", "errs", "colls"); if (dflag) printf(" %5.5s", "drops"); if (lastif - iftot > 0) { if (bflag) printf(" %10.10s %8.8s %10.10s %5.5s", "bytes", " ", "bytes", " "); else printf(" %8.8s %5.5s %8.8s %5.5s %5.5s", "packets", "errs", "packets", "errs", "colls"); if (dflag) printf(" %5.5s", "drops"); } putchar('\n'); fflush(stdout); line = 0; loop: sum->ift_ip = 0; sum->ift_ib = 0; sum->ift_ie = 0; sum->ift_op = 0; sum->ift_ob = 0; sum->ift_oe = 0; sum->ift_co = 0; sum->ift_dr = 0; for (off = firstifnet, ip = iftot; off && ip < lastif; ip++) { if (kread(off, (char *)&ifnet, sizeof ifnet)) { off = 0; continue; } if (ip == interesting) { if (bflag) { char humbuf[HUMBUF_SIZE]; if (hflag && humanize_number(humbuf, sizeof(humbuf), ifnet.if_ibytes - ip->ift_ib, "", HN_AUTOSCALE, HN_NOSPACE | HN_B) > 0) printf("%10s %8.8s ", humbuf, " "); else printf("%10llu %8.8s ", (unsigned long long) (ifnet.if_ibytes-ip->ift_ib), " "); if (hflag && humanize_number(humbuf, sizeof(humbuf), ifnet.if_obytes - ip->ift_ob, "", HN_AUTOSCALE, HN_NOSPACE | HN_B) > 0) printf("%10s %5.5s", humbuf, " "); else printf("%10llu %5.5s", (unsigned long long) (ifnet.if_obytes-ip->ift_ob), " "); } else { printf("%8llu %5llu %8llu %5llu %5llu", (unsigned long long) (ifnet.if_ipackets - ip->ift_ip), (unsigned long long) (ifnet.if_ierrors - ip->ift_ie), (unsigned long long) (ifnet.if_opackets - ip->ift_op), (unsigned long long) (ifnet.if_oerrors - ip->ift_oe), (unsigned long long) (ifnet.if_collisions - ip->ift_co)); } if (dflag) printf(" %5llu", (unsigned long long) (ifnet.if_snd.ifq_drops - ip->ift_dr)); } ip->ift_ip = ifnet.if_ipackets; ip->ift_ib = ifnet.if_ibytes; ip->ift_ie = ifnet.if_ierrors; ip->ift_op = ifnet.if_opackets; ip->ift_ob = ifnet.if_obytes; ip->ift_oe = ifnet.if_oerrors; ip->ift_co = ifnet.if_collisions; ip->ift_dr = ifnet.if_snd.ifq_drops; sum->ift_ip += ip->ift_ip; sum->ift_ib += ip->ift_ib; sum->ift_ie += ip->ift_ie; sum->ift_op += ip->ift_op; sum->ift_ob += ip->ift_ob; sum->ift_oe += ip->ift_oe; sum->ift_co += ip->ift_co; sum->ift_dr += ip->ift_dr; off = (u_long)ifnet.if_list.tqe_next; } if (lastif - iftot > 0) { if (bflag) { char humbuf[HUMBUF_SIZE]; if (hflag && humanize_number(humbuf, sizeof(humbuf), sum->ift_ib - total->ift_ib, "", HN_AUTOSCALE, HN_NOSPACE | HN_B) > 0) printf(" %10s %8.8s ", humbuf, " "); else printf(" %10llu %8.8s ", (unsigned long long) (sum->ift_ib - total->ift_ib), " "); if (hflag && humanize_number(humbuf, sizeof(humbuf), sum->ift_ob - total->ift_ob, "", HN_AUTOSCALE, HN_NOSPACE | HN_B) > 0) printf("%10s %5.5s", humbuf, " "); else printf("%10llu %5.5s", (unsigned long long) (sum->ift_ob - total->ift_ob), " "); } else { printf(" %8llu %5llu %8llu %5llu %5llu", (unsigned long long) (sum->ift_ip - total->ift_ip), (unsigned long long) (sum->ift_ie - total->ift_ie), (unsigned long long) (sum->ift_op - total->ift_op), (unsigned long long) (sum->ift_oe - total->ift_oe), (unsigned long long) (sum->ift_co - total->ift_co)); } if (dflag) printf(" %5llu", (unsigned long long)(sum->ift_dr - total->ift_dr)); } *total = *sum; putchar('\n'); fflush(stdout); line++; oldmask = sigblock(sigmask(SIGALRM)); if (! signalled) { sigpause(0); } sigsetmask(oldmask); signalled = false; if (line == 21) goto banner; goto loop; /*NOTREACHED*/ } /* * 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(unsigned int interval, u_long off) { if (use_sysctl) { sidewaysintpr_sysctl(interval); } else { sidewaysintpr_kvm(interval, off); } } /* * Called if an interval expires before sidewaysintpr has completed a loop. * Sets a flag to not wait for the alarm. */ static void catchalarm(int signo) { signalled = true; } static void get_rtaddrs(int addrs, struct sockaddr *sa, struct sockaddr **rti_info) { int i; for (i = 0; i < RTAX_MAX; i++) { if (addrs & (1 << i)) { rti_info[i] = sa; sa = (struct sockaddr *)((char *)(sa) + RT_ROUNDUP(sa->sa_len)); } else rti_info[i] = NULL; } } static void fetchifs(void) { struct if_msghdr *ifm; int mib[6] = { CTL_NET, AF_ROUTE, 0, 0, NET_RT_IFLIST, 0 }; struct rt_msghdr *rtm; struct if_data *ifd = NULL; struct sockaddr *sa, *rti_info[RTAX_MAX]; struct sockaddr_dl *sdl; char *buf, *next, *lim; char name[IFNAMSIZ]; size_t len; if (prog_sysctl(mib, 6, NULL, &len, NULL, 0) == -1) err(1, "sysctl"); if ((buf = malloc(len)) == NULL) err(1, NULL); if (prog_sysctl(mib, 6, buf, &len, NULL, 0) == -1) err(1, "sysctl"); lim = buf + len; for (next = buf; next < lim; next += rtm->rtm_msglen) { rtm = (struct rt_msghdr *)next; if (rtm->rtm_version != RTM_VERSION) continue; switch (rtm->rtm_type) { case RTM_IFINFO: ifm = (struct if_msghdr *)next; ifd = &ifm->ifm_data; sa = (struct sockaddr *)(ifm + 1); get_rtaddrs(ifm->ifm_addrs, sa, rti_info); sdl = (struct sockaddr_dl *)rti_info[RTAX_IFP]; if (sdl == NULL || sdl->sdl_family != AF_LINK) continue; bzero(name, sizeof(name)); if (sdl->sdl_nlen >= IFNAMSIZ) memcpy(name, sdl->sdl_data, IFNAMSIZ - 1); else if (sdl->sdl_nlen > 0) memcpy(name, sdl->sdl_data, sdl->sdl_nlen); if (interface != 0 && !strcmp(name, interface)) { strlcpy(ip_cur.ift_name, name, sizeof(ip_cur.ift_name)); ip_cur.ift_ip = ifd->ifi_ipackets; ip_cur.ift_ib = ifd->ifi_ibytes; ip_cur.ift_ie = ifd->ifi_ierrors; ip_cur.ift_op = ifd->ifi_opackets; ip_cur.ift_ob = ifd->ifi_obytes; ip_cur.ift_oe = ifd->ifi_oerrors; ip_cur.ift_co = ifd->ifi_collisions; ip_cur.ift_dr = 0; /* XXX-elad ifnet.if_snd.ifq_drops */ } sum_cur.ift_ip += ifd->ifi_ipackets; sum_cur.ift_ib += ifd->ifi_ibytes; sum_cur.ift_ie += ifd->ifi_ierrors; sum_cur.ift_op += ifd->ifi_opackets; sum_cur.ift_ob += ifd->ifi_obytes; sum_cur.ift_oe += ifd->ifi_oerrors; sum_cur.ift_co += ifd->ifi_collisions; sum_cur.ift_dr += 0; /* XXX-elad ifnet.if_snd.ifq_drops */ break; } } if (interface == NULL) { strlcpy(ip_cur.ift_name, name, sizeof(ip_cur.ift_name)); ip_cur.ift_ip = ifd->ifi_ipackets; ip_cur.ift_ib = ifd->ifi_ibytes; ip_cur.ift_ie = ifd->ifi_ierrors; ip_cur.ift_op = ifd->ifi_opackets; ip_cur.ift_ob = ifd->ifi_obytes; ip_cur.ift_oe = ifd->ifi_oerrors; ip_cur.ift_co = ifd->ifi_collisions; ip_cur.ift_dr = 0; /* XXX-elad ifnet.if_snd.ifq_drops */ } }