/* * Copyright (c) 2008-2020 Apple Inc. All rights reserved. * * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in * compliance with the License. The rights granted to you under the License * may not be used to create, or enable the creation or redistribution of, * unlawful or unlicensed copies of an Apple operating system, or to * circumvent, violate, or enable the circumvention or violation of, any * terms of an Apple operating system software license agreement. * * Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ and read it before using this file. * * The Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. * * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ */ /* * Copyright (c) 1983, 1988, 1993 * 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. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 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. */ #ifndef lint char const copyright[] = "@(#) Copyright (c) 1983, 1988, 1993\n\ Regents of the University of California. All rights reserved.\n"; #endif /* not lint */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "netstat.h" #include #include #ifdef __APPLE__ #include #endif /* * ---------------------------------------------------------------------------- * "THE BEER-WARE LICENSE" (Revision 42): * wrote this file. As long as you retain this notice you * can do whatever you want with this stuff. If we meet some day, and you think * this stuff is worth it, you can buy me a beer in return. Poul-Henning Kamp * ---------------------------------------------------------------------------- * * $Id: main.c,v 1.8 2004/10/14 22:24:09 lindak Exp $ * */ struct protox { void (*pr_cblocks)(uint32_t, char *, int); /* control blocks printing routine */ void (*pr_stats)(uint32_t, char *, int); /* statistics printing routine */ void (*pr_istats)(char *); /* per/if statistics printing routine */ char *pr_name; /* well-known name */ int pr_protocol; } protox[] = { { protopr, tcp_stats, NULL, "tcp", IPPROTO_TCP }, { protopr, udp_stats, NULL, "udp", IPPROTO_UDP }, { protopr, NULL, NULL, "divert", IPPROTO_DIVERT }, { protopr, ip_stats, NULL, "ip", IPPROTO_RAW }, { protopr, icmp_stats, NULL, "icmp", IPPROTO_ICMP }, { protopr, igmp_stats, NULL, "igmp", IPPROTO_IGMP }, #ifdef IPSEC { NULL, ipsec_stats, NULL, "ipsec", IPPROTO_ESP}, #endif { NULL, arp_stats, NULL, "arp", 0 }, { mptcppr, mptcp_stats, NULL, "mptcp", IPPROTO_TCP }, { NULL, NULL, NULL, NULL, 0 } }; #ifdef INET6 struct protox ip6protox[] = { { protopr, tcp_stats, NULL, "tcp", IPPROTO_TCP }, { protopr, udp_stats, NULL, "udp", IPPROTO_UDP }, { protopr, ip6_stats, ip6_ifstats, "ip6", IPPROTO_RAW }, { protopr, icmp6_stats, icmp6_ifstats, "icmp6",IPPROTO_ICMPV6 }, #ifdef IPSEC { NULL, ipsec_stats, NULL, "ipsec6", IPPROTO_ESP }, #endif { NULL, rip6_stats, NULL, "rip6", IPPROTO_RAW }, { mptcppr, mptcp_stats, NULL, "mptcp", IPPROTO_TCP }, { NULL, NULL, NULL, NULL, 0 } }; #endif /*INET6*/ #ifdef IPSEC struct protox pfkeyprotox[] = { { NULL, pfkey_stats, NULL, "pfkey", PF_KEY_V2 }, { NULL, NULL, NULL, NULL, 0 } }; #endif struct protox systmprotox[] = { { systmpr, NULL, NULL, "reg", 0 }, { systmpr, kevt_stats, NULL, "kevt", SYSPROTO_EVENT }, { systmpr, kctl_stats, NULL, "kctl", SYSPROTO_CONTROL }, { NULL, NULL, NULL, NULL, 0 } }; struct protox nstatprotox[] = { { NULL, print_nstat_stats, NULL, "nstat", 0 }, { NULL, NULL, NULL, NULL, 0 } }; struct protox ipcprotox[] = { { NULL, print_extbkidle_stats, NULL, "xbkidle", 0 }, { NULL, NULL, NULL, NULL, 0 } }; struct protox kernprotox[] = { { NULL, print_net_api_stats, NULL, "net_api", 0 }, { NULL, NULL, NULL, NULL, 0 } }; #ifdef AF_VSOCK struct protox vsockprotox[] = { { vsockpr, NULL, NULL, "vsock", 0 }, { NULL, NULL, NULL, NULL, 0 } }; #endif struct protox *protoprotox[] = { protox, #ifdef INET6 ip6protox, #endif #ifdef IPSEC pfkeyprotox, #endif systmprotox, nstatprotox, ipcprotox, kernprotox, #ifdef AF_VSOCK vsockprotox, #endif NULL }; static void printproto (struct protox *, char *); static void usage (void); static struct protox *name2protox (char *); static struct protox *knownname (char *); #ifdef SRVCACHE extern void _serv_cache_close(); #endif int Aflag; /* show addresses of protocol control block */ int aflag; /* show all sockets (including servers) */ int bflag; /* show i/f total bytes in/out */ int cflag; /* show specific classq */ int dflag; /* show i/f dropped packets */ int Fflag; /* show i/f forwarded packets */ #if defined(__APPLE__) int gflag; /* show group (multicast) routing or stats */ #endif int iflag; /* show interfaces */ int lflag; /* show routing table with more information */ int Lflag; /* show size of listen queues */ int mflag; /* show memory stats */ int nflag; /* show addresses numerically */ static int pflag; /* show given protocol */ int prioflag = -1; /* show packet priority statistics */ int Rflag; /* show reachability information */ int rflag; /* show routing tables (or routing stats) */ int sflag; /* show protocol statistics */ int Sflag; /* show additional i/f link status */ int tflag; /* show i/f watchdog timers */ int vflag; /* more verbose */ int Wflag; /* wide display */ int qflag; /* classq stats display */ int Qflag; /* opportunistic polling stats display */ int xflag; /* show extended link-layer reachability information */ int zflag; /* show only entries with non zero rtt metrics */ int cq = -1; /* send classq index (-1 for all) */ int interval; /* repeat interval for i/f stats */ char *interface; /* desired i/f for stats, or NULL for all i/fs */ int unit; /* unit number for above */ int af; /* address family */ int main(argc, argv) int argc; char *argv[]; { register struct protox *tp = NULL; /* for printing cblocks & stats */ int ch; af = AF_UNSPEC; while ((ch = getopt(argc, argv, "Aabc:dFf:gI:ikLlmnP:p:qQrRsStuvWw:xz")) != -1) switch(ch) { case 'A': Aflag = 1; break; case 'a': aflag = 1; break; case 'b': bflag = 1; break; case 'c': cflag = 1; cq = atoi(optarg); break; case 'd': dflag = 1; break; case 'F': Fflag = 1; break; case 'f': if (strcmp(optarg, "ipx") == 0) af = AF_IPX; else if (strcmp(optarg, "inet") == 0) af = AF_INET; #ifdef INET6 else if (strcmp(optarg, "inet6") == 0) af = AF_INET6; #endif /*INET6*/ #ifdef INET6 else if (strcmp(optarg, "pfkey") == 0) af = PF_KEY; #endif /*INET6*/ else if (strcmp(optarg, "unix") == 0) af = AF_UNIX; else if (strcmp(optarg, "systm") == 0) af = AF_SYSTEM; else { errx(1, "%s: unknown address family", optarg); } break; #if defined(__APPLE__) case 'g': gflag = 1; break; #endif case 'I': { char *cp; iflag = 1; for (cp = interface = optarg; isalpha(*cp); cp++) continue; unit = atoi(cp); break; } case 'i': iflag = 1; break; case 'l': lflag += 1; break; case 'L': Lflag = 1; break; case 'm': mflag++; break; case 'n': nflag = 1; break; case 'P': prioflag = atoi(optarg); break; case 'p': if ((tp = name2protox(optarg)) == NULL) { errx(1, "%s: unknown or uninstrumented protocol", optarg); } pflag = 1; break; case 'q': qflag++; break; case 'Q': Qflag++; break; case 'R': Rflag = 1; break; case 'r': rflag = 1; break; case 's': ++sflag; break; case 'S': Sflag = 1; break; case 't': tflag = 1; break; case 'u': af = AF_UNIX; break; case 'v': vflag++; break; case 'W': Wflag = 1; break; case 'w': interval = atoi(optarg); iflag = 1; break; case 'x': xflag = 1; Rflag = 1; break; case 'z': zflag = 1; break; case '?': default: usage(); } argv += optind; argc -= optind; #define BACKWARD_COMPATIBILITY #ifdef BACKWARD_COMPATIBILITY if (*argv) { if (isdigit(**argv)) { interval = atoi(*argv); if (interval <= 0) usage(); ++argv; iflag = 1; } } #endif if (mflag) { mbpr(); exit(0); } if (iflag && !sflag && !Sflag && !gflag && !qflag && !Qflag) { if (Rflag) intpr_ri(NULL); else intpr(NULL); exit(0); } if (rflag) { if (sflag) rt_stats(); else routepr(); exit(0); } if (qflag || Qflag) { if (interface == NULL) { fprintf(stderr, "%s statistics option " "requires interface name\n", qflag ? "Queue" : "Polling"); } else if (qflag) { aqstatpr(); } else { rxpollstatpr(); } exit(0); } if (Sflag) { if (interface == NULL) { fprintf(stderr, "additional link status option" " requires interface name\n"); } else { print_link_status(interface); } exit(0); } #if defined(__APPLE__) if (gflag) { ifmalist_dump(); exit(0); } #endif if (tp) { printproto(tp, tp->pr_name); exit(0); } if (af == AF_INET || af == AF_UNSPEC) for (tp = protox; tp->pr_name; tp++) printproto(tp, tp->pr_name); #ifdef INET6 if (af == AF_INET6 || af == AF_UNSPEC) for (tp = ip6protox; tp->pr_name; tp++) printproto(tp, tp->pr_name); #endif /*INET6*/ #ifdef IPSEC if (af == PF_KEY || af == AF_UNSPEC) for (tp = pfkeyprotox; tp->pr_name; tp++) printproto(tp, tp->pr_name); #endif /*IPSEC*/ if ((af == AF_UNIX || af == AF_UNSPEC) && !Lflag && !sflag) unixpr(); if ((af == AF_SYSTEM || af == AF_UNSPEC) && !Lflag) for (tp = systmprotox; tp->pr_name; tp++) printproto(tp, tp->pr_name); #if TARGET_OS_IPHONE if (af == AF_UNSPEC && !Lflag) for (tp = nstatprotox; tp->pr_name; tp++) printproto(tp, tp->pr_name); #endif /* TARGET_OS_IPHONE */ if (af == AF_UNSPEC && !Lflag) for (tp = ipcprotox; tp->pr_name; tp++) printproto(tp, tp->pr_name); if (af == AF_UNSPEC && !Lflag) for (tp = kernprotox; tp->pr_name; tp++) printproto(tp, tp->pr_name); #ifdef AF_VSOCK if (af == AF_VSOCK || af == AF_UNSPEC) for (tp = vsockprotox; tp->pr_name; tp++) printproto(tp, tp->pr_name); #endif /*AF_VSOCK*/ #ifdef SRVCACHE _serv_cache_close(); #endif exit(0); } /* * Print out protocol statistics or control blocks (per sflag). * If the interface was not specifically requested, and the symbol * is not in the namelist, ignore this one. */ static void printproto(tp, name) register struct protox *tp; char *name; { void (*pr)(uint32_t, char *, int); uint32_t off; if (sflag) { if (iflag && !pflag) { if (tp->pr_istats) intpr(tp->pr_istats); else if (vflag) printf("%s: no per-interface stats routine\n", tp->pr_name); return; } else { pr = tp->pr_stats; if (!pr) { if (pflag && vflag) printf("%s: no stats routine\n", tp->pr_name); return; } off = tp->pr_protocol; } } else { pr = tp->pr_cblocks; if (!pr) { if (pflag && vflag) printf("%s: no PCB routine\n", tp->pr_name); return; } off = tp->pr_protocol; } if (pr != NULL) { if (sflag && iflag && pflag) intervalpr(pr, off, name, af); else (*pr)(off, name, af); } else { printf("### no stats for %s\n", name); } } char * plural(int n) { return (n > 1 ? "s" : ""); } char * plurales(int n) { return (n > 1 ? "es" : ""); } char * pluralies(int n) { return (n > 1 ? "ies" : "y"); } /* * Find the protox for the given "well-known" name. */ static struct protox * knownname(char *name) { struct protox **tpp, *tp; for (tpp = protoprotox; *tpp; tpp++) for (tp = *tpp; tp->pr_name; tp++) if (strcmp(tp->pr_name, name) == 0) return (tp); return (NULL); } /* * Find the protox corresponding to name. */ static struct protox * name2protox(char *name) { struct protox *tp; char **alias; /* alias from p->aliases */ struct protoent *p; /* * Try to find the name in the list of "well-known" names. If that * fails, check if name is an alias for an Internet protocol. */ if ((tp = knownname(name)) != NULL) return (tp); setprotoent(1); /* make protocol lookup cheaper */ while ((p = getprotoent()) != NULL) { /* assert: name not same as p->name */ for (alias = p->p_aliases; *alias; alias++) if (strcmp(name, *alias) == 0) { endprotoent(); return (knownname(p->p_name)); } } endprotoent(); return (NULL); } #define NETSTAT_USAGE "\ Usage: netstat [-AaLlnW] [-f address_family | -p protocol]\n\ netstat [-gilns] [-f address_family]\n\ netstat -i | -I interface [-w wait] [-abdgRtS]\n\ netstat -s [-s] [-f address_family | -p protocol] [-w wait]\n\ netstat -i | -I interface -s [-f address_family | -p protocol]\n\ netstat -m [-m]\n\ netstat -r [-Aaln] [-f address_family]\n\ netstat -rs [-s]\n\ " static void usage(void) { (void) fprintf(stderr, "%s\n", NETSTAT_USAGE); exit(1); } int print_time(void) { time_t now; struct tm tm; int num_written = 0; (void) time(&now); (void) localtime_r(&now, &tm); num_written += printf("%02d:%02d:%02d ", tm.tm_hour, tm.tm_min, tm.tm_sec); return (num_written); }