2 * stolen from net-tools-1.59 and stripped down for busybox by
3 * Erik Andersen <andersee@debian.org>
5 * Heavily modified by Manuel Novoa III Mar 12, 2001
7 * Pruned unused code using KEEP_UNUSED define.
8 * Added print_bytes_scaled function to reduce code size.
9 * Added some (potentially) missing defines.
10 * Improved display support for -a and for a named interface.
12 * -----------------------------------------------------------
14 * ifconfig This file contains an implementation of the command
15 * that either displays or sets the characteristics of
16 * one or more of the system's networking interfaces.
18 * Version: $Id: interface.c,v 1.11 2002/11/26 09:02:04 bug1 Exp $
20 * Author: Fred N. van Kempen, <waltje@uwalt.nl.mugnet.org>
21 * and others. Copyright 1993 MicroWalt Corporation
23 * This program is free software; you can redistribute it
24 * and/or modify it under the terms of the GNU General
25 * Public License as published by the Free Software
26 * Foundation; either version 2 of the License, or (at
27 * your option) any later version.
29 * Patched to support 'add' and 'del' keywords for INET(4) addresses
30 * by Mrs. Brisby <mrs.brisby@nimh.org>
32 * {1.34} - 19980630 - Arnaldo Carvalho de Melo <acme@conectiva.com.br>
33 * - gettext instead of catgets for i18n
34 * 10/1998 - Andi Kleen. Use interface list primitives.
35 * 20001008 - Bernd Eckenfels, Patch from RH for setting mtu
36 * (default AF was wrong)
39 /* #define KEEP_UNUSED */
54 #ifdef CONFIG_FEATURE_IPV6
55 # define HAVE_AFINET6 1
62 * Device Hardware types.
65 #define HAVE_HWETHER 1
70 #include "inet_common.h"
78 #include <sys/ioctl.h>
80 #include <net/if_arp.h>
84 #define _PATH_PROCNET_DEV "/proc/net/dev"
85 #define _PATH_PROCNET_IFINET6 "/proc/net/if_inet6"
86 #define new(p) ((p) = xcalloc(1,sizeof(*(p))))
87 #define KRELEASE(maj,min,patch) ((maj) * 65536 + (min)*256 + (patch))
89 static int procnetdev_vsn = 1;
91 /* Ugh. But libc5 doesn't provide POSIX types. */
92 #include <asm/types.h>
96 #include <linux/if_slip.h>
103 * This is in linux/include/net/ipv6.h.
107 struct in6_addr ifr6_addr;
108 __u32 ifr6_prefixlen;
109 unsigned int ifr6_ifindex;
114 #endif /* HAVE_AFINET6 */
117 #if (__GLIBC__ >= 2) && (__GLIBC_MINOR__ >= 1)
118 #include <netipx/ipx.h>
124 /* Defines for glibc2.0 users. */
125 #ifndef SIOCSIFTXQLEN
126 #define SIOCSIFTXQLEN 0x8943
127 #define SIOCGIFTXQLEN 0x8942
130 /* ifr_qlen is ifru_ivalue, but it isn't present in 2.0 kernel headers */
132 #define ifr_qlen ifr_ifru.ifru_mtu
135 #ifndef HAVE_TXQUEUELEN
136 #define HAVE_TXQUEUELEN 1
140 #define IFF_DYNAMIC 0x8000 /* dialup device with changing addresses */
143 /* This structure defines protocol families and their handlers. */
149 char *(*print) (unsigned char *);
150 char *(*sprint) (struct sockaddr *, int numeric);
151 int (*input) (int type, char *bufp, struct sockaddr *);
152 void (*herror) (char *text);
153 int (*rprint) (int options);
154 int (*rinput) (int typ, int ext, char **argv);
157 int (*getmask) (char *src, struct sockaddr * mask, char *name);
171 static int flag_ax25;
177 static int flag_netrom;
179 static int flag_inet;
182 static int flag_inet6;
185 static int flag_econet;
188 static int flag_x25 = 0;
195 static struct aftrans_t {
203 "ax25", "ax25", &flag_ax25},
206 "ip", "inet", &flag_inet},
209 "ip6", "inet6", &flag_inet6},
213 "ipx", "ipx", &flag_ipx},
217 "appletalk", "ddp", &flag_ddp},
221 "netrom", "netrom", &flag_netrom},
224 "inet", "inet", &flag_inet},
227 "inet6", "inet6", &flag_inet6},
231 "ddp", "ddp", &flag_ddp},
234 "unix", "unix", &flag_unx}, {
235 "tcpip", "inet", &flag_inet},
238 "econet", "ec", &flag_econet},
242 "x25", "x25", &flag_x25},
246 "ash", "ash", &flag_ash},
252 static char afname[256] = "";
253 #endif /* KEEP_UNUSED */
257 /* Display a UNIX domain address. */
258 static char *UNIX_print(unsigned char *ptr)
264 /* Display a UNIX domain address. */
265 static char *UNIX_sprint(struct sockaddr *sap, int numeric)
269 if (sap->sa_family == 0xFFFF || sap->sa_family == 0)
270 return safe_strncpy(buf, _("[NONE SET]"), sizeof(buf));
271 return (UNIX_print(sap->sa_data));
275 static struct aftype unix_aftype = {
276 "unix", "UNIX Domain", AF_UNIX, 0,
277 UNIX_print, UNIX_sprint, NULL, NULL,
282 #endif /* HAVE_AFUNIX */
287 static void INET_reserror(char *text)
292 /* Display an Internet socket address. */
293 static char *INET_print(unsigned char *ptr)
295 return (inet_ntoa((*(struct in_addr *) ptr)));
297 #endif /* KEEP_UNUSED */
299 /* Display an Internet socket address. */
300 static char *INET_sprint(struct sockaddr *sap, int numeric)
302 static char buff[128];
304 if (sap->sa_family == 0xFFFF || sap->sa_family == 0)
305 return safe_strncpy(buff, _("[NONE SET]"), sizeof(buff));
307 if (INET_rresolve(buff, sizeof(buff), (struct sockaddr_in *) sap,
308 numeric, 0xffffff00) != 0)
315 static char *INET_sprintmask(struct sockaddr *sap, int numeric,
316 unsigned int netmask)
318 static char buff[128];
320 if (sap->sa_family == 0xFFFF || sap->sa_family == 0)
321 return safe_strncpy(buff, _("[NONE SET]"), sizeof(buff));
322 if (INET_rresolve(buff, sizeof(buff), (struct sockaddr_in *) sap,
323 numeric, netmask) != 0)
328 static int INET_getsock(char *bufp, struct sockaddr *sap)
330 char *sp = bufp, *bp;
333 struct sockaddr_in *sin;
335 sin = (struct sockaddr_in *) sap;
336 sin->sin_family = AF_INET;
341 for (i = 0; i < sizeof(sin->sin_addr.s_addr); i++) {
344 if ((*sp >= 'A') && (*sp <= 'F'))
345 bp[i] |= (int) (*sp - 'A') + 10;
346 else if ((*sp >= '0') && (*sp <= '9'))
347 bp[i] |= (int) (*sp - '0');
355 if ((*sp >= 'A') && (*sp <= 'F'))
356 bp[i] |= (int) (*sp - 'A') + 10;
357 else if ((*sp >= '0') && (*sp <= '9'))
358 bp[i] |= (int) (*sp - '0');
364 sin->sin_addr.s_addr = htonl(val);
369 static int INET_input(int type, char *bufp, struct sockaddr *sap)
373 return (INET_getsock(bufp, sap));
375 return (INET_resolve(bufp, (struct sockaddr_in *) sap, 1));
377 return (INET_resolve(bufp, (struct sockaddr_in *) sap, 0));
381 static int INET_getnetmask(char *adr, struct sockaddr *m, char *name)
383 struct sockaddr_in *mask = (struct sockaddr_in *) m;
387 if ((slash = strchr(adr, '/')) == NULL)
391 prefix = strtoul(slash, &end, 0);
396 sprintf(name, "/%d", prefix);
398 mask->sin_family = AF_INET;
399 mask->sin_addr.s_addr = htonl(~(0xffffffffU >> prefix));
402 #endif /* KEEP_UNUSED */
404 static struct aftype inet_aftype = {
405 "inet", "DARPA Internet", AF_INET, sizeof(unsigned long),
406 NULL /* UNUSED INET_print */ , INET_sprint,
407 NULL /* UNUSED INET_input */ , NULL /* UNUSED INET_reserror */ ,
408 NULL /*INET_rprint */ , NULL /*INET_rinput */ ,
409 NULL /* UNUSED INET_getnetmask */ ,
414 #endif /* HAVE_AFINET */
419 static void INET6_reserror(char *text)
424 /* Display an Internet socket address. */
425 static char *INET6_print(unsigned char *ptr)
427 static char name[80];
429 inet_ntop(AF_INET6, (struct in6_addr *) ptr, name, 80);
432 #endif /* KEEP_UNUSED */
434 /* Display an Internet socket address. */
435 /* dirty! struct sockaddr usually doesn't suffer for inet6 addresses, fst. */
436 static char *INET6_sprint(struct sockaddr *sap, int numeric)
438 static char buff[128];
440 if (sap->sa_family == 0xFFFF || sap->sa_family == 0)
441 return safe_strncpy(buff, _("[NONE SET]"), sizeof(buff));
443 (buff, sizeof(buff), (struct sockaddr_in6 *) sap, numeric) != 0)
444 return safe_strncpy(buff, _("[UNKNOWN]"), sizeof(buff));
449 static int INET6_getsock(char *bufp, struct sockaddr *sap)
451 struct sockaddr_in6 *sin6;
453 sin6 = (struct sockaddr_in6 *) sap;
454 sin6->sin6_family = AF_INET6;
457 if (inet_pton(AF_INET6, bufp, sin6->sin6_addr.s6_addr) <= 0)
463 static int INET6_input(int type, char *bufp, struct sockaddr *sap)
467 return (INET6_getsock(bufp, sap));
469 return (INET6_resolve(bufp, (struct sockaddr_in6 *) sap));
472 #endif /* KEEP_UNUSED */
474 static struct aftype inet6_aftype = {
475 "inet6", "IPv6", AF_INET6, sizeof(struct in6_addr),
476 NULL /* UNUSED INET6_print */ , INET6_sprint,
477 NULL /* UNUSED INET6_input */ , NULL /* UNUSED INET6_reserror */ ,
478 NULL /*INET6_rprint */ , NULL /*INET6_rinput */ ,
479 NULL /* UNUSED INET6_getnetmask */ ,
484 #endif /* HAVE_AFINET6 */
486 /* Display an UNSPEC address. */
487 static char *UNSPEC_print(unsigned char *ptr)
489 static char buff[sizeof(struct sockaddr) * 3 + 1];
494 for (i = 0; i < sizeof(struct sockaddr); i++) {
495 /* careful -- not every libc's sprintf returns # bytes written */
496 sprintf(pos, "%02X-", (*ptr++ & 0377));
499 /* Erase trailing "-". Works as long as sizeof(struct sockaddr) != 0 */
504 /* Display an UNSPEC socket address. */
505 static char *UNSPEC_sprint(struct sockaddr *sap, int numeric)
509 if (sap->sa_family == 0xFFFF || sap->sa_family == 0)
510 return safe_strncpy(buf, _("[NONE SET]"), sizeof(buf));
511 return (UNSPEC_print(sap->sa_data));
514 static struct aftype unspec_aftype = {
515 "unspec", "UNSPEC", AF_UNSPEC, 0,
516 UNSPEC_print, UNSPEC_sprint, NULL, NULL,
520 static struct aftype *aftypes[] = {
559 static short sVafinit = 0;
563 unspec_aftype.title = _("UNSPEC");
565 unix_aftype.title = _("UNIX Domain");
568 inet_aftype.title = _("DARPA Internet");
571 inet6_aftype.title = _("IPv6");
574 ax25_aftype.title = _("AMPR AX.25");
577 netrom_aftype.title = _("AMPR NET/ROM");
580 ipx_aftype.title = _("Novell IPX");
583 ddp_aftype.title = _("Appletalk DDP");
586 ec_aftype.title = _("Econet");
589 x25_aftype.title = _("CCITT X.25");
592 rose_aftype.title = _("AMPR ROSE");
595 ash_aftype.title = _("Ash");
600 static int aftrans_opt(const char *arg)
602 struct aftrans_t *paft;
606 safe_strncpy(buf, arg, sizeof(buf));
612 tmp2 = strchr(tmp1, ',');
618 for (paft = aftrans; paft->alias; paft++) {
619 if (strcmp(tmp1, paft->alias))
621 if (strlen(paft->name) + strlen(afname) + 1 >= sizeof(afname)) {
622 fprintf(stderr, _("Too much address family arguments.\n"));
629 strcat(afname, paft->name);
633 fprintf(stderr, _("Unknown address family `%s'.\n"), tmp1);
642 /* set the default AF list from the program name or a constant value */
643 static void aftrans_def(char *tool, char *argv0, char *dflt)
648 strcpy(afname, dflt);
650 if (!(tmp = strrchr(argv0, '/')))
651 tmp = argv0; /* no slash?! */
655 if (!(buf = strdup(tmp)))
658 if (strlen(tool) >= strlen(tmp)) {
662 tmp = buf + (strlen(tmp) - strlen(tool));
664 if (strcmp(tmp, tool) != 0) {
669 if ((tmp = strchr(buf, '_')))
673 if (aftrans_opt(buf))
679 /* Check our protocol family table for this family. */
680 static struct aftype *get_aftype(const char *name)
687 #endif /* KEEP_UNUSED */
690 while (*afp != NULL) {
691 if (!strcmp((*afp)->name, name))
695 if (strchr(name, ','))
697 _("Please don't supply more than one address family.\n"));
700 #endif /* KEEP_UNUSED */
702 /* Check our protocol family table for this family. */
703 static struct aftype *get_afntype(int af)
710 #endif /* KEEP_UNUSED */
713 while (*afp != NULL) {
714 if ((*afp)->af == af)
721 /* Check our protocol family table for this family and return its socket */
722 static int get_socket_for_af(int af)
729 #endif /* KEEP_UNUSED */
732 while (*afp != NULL) {
733 if ((*afp)->af == af)
741 /* type: 0=all, 1=getroute */
742 static void print_aflist(int type)
751 #endif /* KEEP_UNUSED */
754 while (*afp != NULL) {
755 if ((type == 1 && ((*afp)->rprint == NULL)) || ((*afp)->af == 0)) {
759 if ((count % 3) == 0)
760 fprintf(stderr, count ? "\n " : " ");
764 fprintf(stderr, "%s (%s) ", txt, _((*afp)->title));
768 fprintf(stderr, "\n");
770 #endif /* KEEP_UNUSED */
772 struct user_net_device_stats {
773 unsigned long long rx_packets; /* total packets received */
774 unsigned long long tx_packets; /* total packets transmitted */
775 unsigned long long rx_bytes; /* total bytes received */
776 unsigned long long tx_bytes; /* total bytes transmitted */
777 unsigned long rx_errors; /* bad packets received */
778 unsigned long tx_errors; /* packet transmit problems */
779 unsigned long rx_dropped; /* no space in linux buffers */
780 unsigned long tx_dropped; /* no space available in linux */
781 unsigned long rx_multicast; /* multicast packets received */
782 unsigned long rx_compressed;
783 unsigned long tx_compressed;
784 unsigned long collisions;
786 /* detailed rx_errors: */
787 unsigned long rx_length_errors;
788 unsigned long rx_over_errors; /* receiver ring buff overflow */
789 unsigned long rx_crc_errors; /* recved pkt with crc error */
790 unsigned long rx_frame_errors; /* recv'd frame alignment error */
791 unsigned long rx_fifo_errors; /* recv'r fifo overrun */
792 unsigned long rx_missed_errors; /* receiver missed packet */
793 /* detailed tx_errors */
794 unsigned long tx_aborted_errors;
795 unsigned long tx_carrier_errors;
796 unsigned long tx_fifo_errors;
797 unsigned long tx_heartbeat_errors;
798 unsigned long tx_window_errors;
802 struct interface *next, *prev;
803 char name[IFNAMSIZ]; /* interface name */
804 short type; /* if type */
805 short flags; /* various flags */
806 int metric; /* routing metric */
807 int mtu; /* MTU value */
808 int tx_queue_len; /* transmit queue length */
809 struct ifmap map; /* hardware setup */
810 struct sockaddr addr; /* IP address */
811 struct sockaddr dstaddr; /* P-P IP address */
812 struct sockaddr broadaddr; /* IP broadcast address */
813 struct sockaddr netmask; /* IP network mask */
814 struct sockaddr ipxaddr_bb; /* IPX network address */
815 struct sockaddr ipxaddr_sn; /* IPX network address */
816 struct sockaddr ipxaddr_e3; /* IPX network address */
817 struct sockaddr ipxaddr_e2; /* IPX network address */
818 struct sockaddr ddpaddr; /* Appletalk DDP address */
819 struct sockaddr ecaddr; /* Econet address */
828 char hwaddr[32]; /* HW address */
829 int statistics_valid;
830 struct user_net_device_stats stats; /* statistics */
831 int keepalive; /* keepalive value for SLIP */
832 int outfill; /* outfill value for SLIP */
836 int interface_opt_a = 0; /* show all interfaces */
839 static int opt_i = 0; /* show the statistics */
840 static int opt_v = 0; /* debugging output flag */
842 static int addr_family = 0; /* currently selected AF */
843 #endif /* KEEP_UNUSED */
845 static struct interface *int_list, *int_last;
846 static int skfd = -1; /* generic raw socket desc. */
849 static int sockets_open(int family)
853 static int force = -1;
857 if (get_kernel_revision() < KRELEASE(2, 1, 0))
859 if (access("/proc/net", R_OK))
862 for (aft = aftypes; *aft; aft++) {
863 struct aftype *af = *aft;
864 int type = SOCK_DGRAM;
866 if (af->af == AF_UNSPEC)
868 if (family && family != af->af)
874 /* Check some /proc file first to not stress kmod */
875 if (!family && !force && af->flag_file) {
876 if (access(af->flag_file, R_OK))
880 if (af->af == AF_NETROM)
881 type = SOCK_SEQPACKET;
884 if (af->af == AF_X25)
885 type = SOCK_SEQPACKET;
887 af->fd = socket(af->af, type, 0);
892 fprintf(stderr, _("No usable address families found.\n"));
896 /* like strcmp(), but knows about numbers */
897 static int nstrcmp(const char *astr, const char *b)
899 const char *a = astr;
920 return atoi(a) > atoi(b) ? 1 : -1;
925 static struct interface *add_interface(char *name)
927 struct interface *ife, **nextp, *new;
929 for (ife = int_last; ife; ife = ife->prev) {
930 int n = nstrcmp(ife->name, name);
938 safe_strncpy(new->name, name, IFNAMSIZ);
939 nextp = ife ? &ife->next : &int_list;
943 new->next->prev = new;
951 static int if_readconf(void)
959 /* SIOCGIFCONF currently seems to only work properly on AF_INET sockets
961 skfd2 = get_socket_for_af(AF_INET);
963 fprintf(stderr, _("warning: no inet socket available: %s\n"),
965 /* Try to soldier on with whatever socket we can get hold of. */
966 skfd2 = sockets_open(0);
973 ifc.ifc_len = sizeof(struct ifreq) * numreqs;
974 ifc.ifc_buf = xrealloc(ifc.ifc_buf, ifc.ifc_len);
976 if (ioctl(skfd2, SIOCGIFCONF, &ifc) < 0) {
977 perror("SIOCGIFCONF");
980 if (ifc.ifc_len == sizeof(struct ifreq) * numreqs) {
981 /* assume it overflowed and try again */
989 for (n = 0; n < ifc.ifc_len; n += sizeof(struct ifreq)) {
990 add_interface(ifr->ifr_name);
1000 static char *get_name(char *name, char *p)
1007 if (*p == ':') { /* could be an alias */
1008 char *dot = p, *dotname = name;
1013 if (*p != ':') { /* it wasn't, backup */
1028 static int get_dev_fields(char *bp, struct interface *ife)
1030 switch (procnetdev_vsn) {
1033 "%Lu %Lu %lu %lu %lu %lu %lu %lu %Lu %Lu %lu %lu %lu %lu %lu %lu",
1034 &ife->stats.rx_bytes,
1035 &ife->stats.rx_packets,
1036 &ife->stats.rx_errors,
1037 &ife->stats.rx_dropped,
1038 &ife->stats.rx_fifo_errors,
1039 &ife->stats.rx_frame_errors,
1040 &ife->stats.rx_compressed,
1041 &ife->stats.rx_multicast,
1042 &ife->stats.tx_bytes,
1043 &ife->stats.tx_packets,
1044 &ife->stats.tx_errors,
1045 &ife->stats.tx_dropped,
1046 &ife->stats.tx_fifo_errors,
1047 &ife->stats.collisions,
1048 &ife->stats.tx_carrier_errors, &ife->stats.tx_compressed);
1051 sscanf(bp, "%Lu %Lu %lu %lu %lu %lu %Lu %Lu %lu %lu %lu %lu %lu",
1052 &ife->stats.rx_bytes,
1053 &ife->stats.rx_packets,
1054 &ife->stats.rx_errors,
1055 &ife->stats.rx_dropped,
1056 &ife->stats.rx_fifo_errors,
1057 &ife->stats.rx_frame_errors,
1058 &ife->stats.tx_bytes,
1059 &ife->stats.tx_packets,
1060 &ife->stats.tx_errors,
1061 &ife->stats.tx_dropped,
1062 &ife->stats.tx_fifo_errors,
1063 &ife->stats.collisions, &ife->stats.tx_carrier_errors);
1064 ife->stats.rx_multicast = 0;
1067 sscanf(bp, "%Lu %lu %lu %lu %lu %Lu %lu %lu %lu %lu %lu",
1068 &ife->stats.rx_packets,
1069 &ife->stats.rx_errors,
1070 &ife->stats.rx_dropped,
1071 &ife->stats.rx_fifo_errors,
1072 &ife->stats.rx_frame_errors,
1073 &ife->stats.tx_packets,
1074 &ife->stats.tx_errors,
1075 &ife->stats.tx_dropped,
1076 &ife->stats.tx_fifo_errors,
1077 &ife->stats.collisions, &ife->stats.tx_carrier_errors);
1078 ife->stats.rx_bytes = 0;
1079 ife->stats.tx_bytes = 0;
1080 ife->stats.rx_multicast = 0;
1086 static inline int procnetdev_version(char *buf)
1088 if (strstr(buf, "compressed"))
1090 if (strstr(buf, "bytes"))
1095 static int if_readlist_proc(char *target)
1097 static int proc_read;
1100 struct interface *ife;
1108 fh = fopen(_PATH_PROCNET_DEV, "r");
1110 fprintf(stderr, _("Warning: cannot open %s (%s). Limited output.\n"),
1111 _PATH_PROCNET_DEV, strerror(errno));
1112 return if_readconf();
1114 fgets(buf, sizeof buf, fh); /* eat line */
1115 fgets(buf, sizeof buf, fh);
1117 #if 0 /* pretty, but can't cope with missing fields */
1118 fmt = proc_gen_fmt(_PATH_PROCNET_DEV, 1, fh, "face", "", /* parsed separately */
1125 "compressed", "%lu",
1133 "carrier", "%lu", "compressed", "%lu", NULL);
1137 procnetdev_vsn = procnetdev_version(buf);
1141 while (fgets(buf, sizeof buf, fh)) {
1142 char *s, name[IFNAMSIZ];
1144 s = get_name(name, buf);
1145 ife = add_interface(name);
1146 get_dev_fields(s, ife);
1147 ife->statistics_valid = 1;
1148 if (target && !strcmp(target, name))
1152 perror(_PATH_PROCNET_DEV);
1163 static int if_readlist(void)
1165 int err = if_readlist_proc(NULL);
1168 err = if_readconf();
1172 static int for_all_interfaces(int (*doit) (struct interface *, void *),
1175 struct interface *ife;
1177 if (!int_list && (if_readlist() < 0))
1179 for (ife = int_list; ife; ife = ife->next) {
1180 int err = doit(ife, cookie);
1188 /* Support for fetching an IPX address */
1191 static int ipx_getaddr(int sock, int ft, struct ifreq *ifr)
1193 ((struct sockaddr_ipx *) &ifr->ifr_addr)->sipx_type = ft;
1194 return ioctl(sock, SIOCGIFADDR, ifr);
1199 /* Fetch the interface configuration from the kernel. */
1200 static int if_fetch(struct interface *ife)
1204 char *ifname = ife->name;
1206 strcpy(ifr.ifr_name, ifname);
1207 if (ioctl(skfd, SIOCGIFFLAGS, &ifr) < 0)
1209 ife->flags = ifr.ifr_flags;
1211 strcpy(ifr.ifr_name, ifname);
1212 if (ioctl(skfd, SIOCGIFHWADDR, &ifr) < 0)
1213 memset(ife->hwaddr, 0, 32);
1215 memcpy(ife->hwaddr, ifr.ifr_hwaddr.sa_data, 8);
1217 ife->type = ifr.ifr_hwaddr.sa_family;
1219 strcpy(ifr.ifr_name, ifname);
1220 if (ioctl(skfd, SIOCGIFMETRIC, &ifr) < 0)
1223 ife->metric = ifr.ifr_metric;
1225 strcpy(ifr.ifr_name, ifname);
1226 if (ioctl(skfd, SIOCGIFMTU, &ifr) < 0)
1229 ife->mtu = ifr.ifr_mtu;
1232 if (ife->type == ARPHRD_SLIP || ife->type == ARPHRD_CSLIP ||
1233 ife->type == ARPHRD_SLIP6 || ife->type == ARPHRD_CSLIP6 ||
1234 ife->type == ARPHRD_ADAPT) {
1236 strcpy(ifr.ifr_name, ifname);
1237 if (ioctl(skfd, SIOCGOUTFILL, &ifr) < 0)
1240 ife->outfill = (unsigned int) ifr.ifr_data;
1242 #ifdef SIOCGKEEPALIVE
1243 strcpy(ifr.ifr_name, ifname);
1244 if (ioctl(skfd, SIOCGKEEPALIVE, &ifr) < 0)
1247 ife->keepalive = (unsigned int) ifr.ifr_data;
1252 strcpy(ifr.ifr_name, ifname);
1253 if (ioctl(skfd, SIOCGIFMAP, &ifr) < 0)
1254 memset(&ife->map, 0, sizeof(struct ifmap));
1256 memcpy(&ife->map, &ifr.ifr_map, sizeof(struct ifmap));
1258 strcpy(ifr.ifr_name, ifname);
1259 if (ioctl(skfd, SIOCGIFMAP, &ifr) < 0)
1260 memset(&ife->map, 0, sizeof(struct ifmap));
1262 ife->map = ifr.ifr_map;
1264 #ifdef HAVE_TXQUEUELEN
1265 strcpy(ifr.ifr_name, ifname);
1266 if (ioctl(skfd, SIOCGIFTXQLEN, &ifr) < 0)
1267 ife->tx_queue_len = -1; /* unknown value */
1269 ife->tx_queue_len = ifr.ifr_qlen;
1271 ife->tx_queue_len = -1; /* unknown value */
1276 fd = get_socket_for_af(AF_INET);
1278 strcpy(ifr.ifr_name, ifname);
1279 ifr.ifr_addr.sa_family = AF_INET;
1280 if (ioctl(fd, SIOCGIFADDR, &ifr) == 0) {
1282 ife->addr = ifr.ifr_addr;
1283 strcpy(ifr.ifr_name, ifname);
1284 if (ioctl(fd, SIOCGIFDSTADDR, &ifr) < 0)
1285 memset(&ife->dstaddr, 0, sizeof(struct sockaddr));
1287 ife->dstaddr = ifr.ifr_dstaddr;
1289 strcpy(ifr.ifr_name, ifname);
1290 if (ioctl(fd, SIOCGIFBRDADDR, &ifr) < 0)
1291 memset(&ife->broadaddr, 0, sizeof(struct sockaddr));
1293 ife->broadaddr = ifr.ifr_broadaddr;
1295 strcpy(ifr.ifr_name, ifname);
1296 if (ioctl(fd, SIOCGIFNETMASK, &ifr) < 0)
1297 memset(&ife->netmask, 0, sizeof(struct sockaddr));
1299 ife->netmask = ifr.ifr_netmask;
1301 memset(&ife->addr, 0, sizeof(struct sockaddr));
1306 /* DDP address maybe ? */
1307 fd = get_socket_for_af(AF_APPLETALK);
1309 strcpy(ifr.ifr_name, ifname);
1310 if (ioctl(fd, SIOCGIFADDR, &ifr) == 0) {
1311 ife->ddpaddr = ifr.ifr_addr;
1318 /* Look for IPX addresses with all framing types */
1319 fd = get_socket_for_af(AF_IPX);
1321 strcpy(ifr.ifr_name, ifname);
1322 if (!ipx_getaddr(fd, IPX_FRAME_ETHERII, &ifr)) {
1323 ife->has_ipx_bb = 1;
1324 ife->ipxaddr_bb = ifr.ifr_addr;
1326 strcpy(ifr.ifr_name, ifname);
1327 if (!ipx_getaddr(fd, IPX_FRAME_SNAP, &ifr)) {
1328 ife->has_ipx_sn = 1;
1329 ife->ipxaddr_sn = ifr.ifr_addr;
1331 strcpy(ifr.ifr_name, ifname);
1332 if (!ipx_getaddr(fd, IPX_FRAME_8023, &ifr)) {
1333 ife->has_ipx_e3 = 1;
1334 ife->ipxaddr_e3 = ifr.ifr_addr;
1336 strcpy(ifr.ifr_name, ifname);
1337 if (!ipx_getaddr(fd, IPX_FRAME_8022, &ifr)) {
1338 ife->has_ipx_e2 = 1;
1339 ife->ipxaddr_e2 = ifr.ifr_addr;
1345 /* Econet address maybe? */
1346 fd = get_socket_for_af(AF_ECONET);
1348 strcpy(ifr.ifr_name, ifname);
1349 if (ioctl(fd, SIOCGIFADDR, &ifr) == 0) {
1350 ife->ecaddr = ifr.ifr_addr;
1351 ife->has_econet = 1;
1360 static int do_if_fetch(struct interface *ife)
1362 if (if_fetch(ife) < 0) {
1365 if (errno == ENODEV) {
1366 /* Give better error message for this case. */
1367 errmsg = _("Device not found");
1369 errmsg = strerror(errno);
1371 fprintf(stderr, _("%s: error fetching interface information: %s\n"),
1378 /* This structure defines hardware protocols and their handlers. */
1384 char *(*print) (unsigned char *);
1385 int (*input) (char *, struct sockaddr *);
1386 int (*activate) (int fd);
1387 int suppress_null_addr;
1390 static struct hwtype unspec_hwtype = {
1391 "unspec", "UNSPEC", -1, 0,
1392 UNSPEC_print, NULL, NULL
1395 static struct hwtype loop_hwtype = {
1396 "loop", "Local Loopback", ARPHRD_LOOPBACK, 0,
1401 #include <net/if_arp.h>
1402 #include <linux/if_ether.h>
1404 /* Display an Ethernet address in readable format. */
1405 static char *pr_ether(unsigned char *ptr)
1407 static char buff[64];
1409 snprintf(buff, sizeof(buff), "%02X:%02X:%02X:%02X:%02X:%02X",
1410 (ptr[0] & 0377), (ptr[1] & 0377), (ptr[2] & 0377),
1411 (ptr[3] & 0377), (ptr[4] & 0377), (ptr[5] & 0377)
1417 /* Input an Ethernet address and convert to binary. */
1418 static int in_ether(char *bufp, struct sockaddr *sap)
1425 sap->sa_family = ether_hwtype.type;
1430 while ((*bufp != '\0') && (i < ETH_ALEN)) {
1435 else if (c >= 'a' && c <= 'f')
1437 else if (c >= 'A' && c <= 'F')
1441 fprintf(stderr, _("in_ether(%s): invalid ether address!\n"),
1451 else if (c >= 'a' && c <= 'f')
1452 val |= c - 'a' + 10;
1453 else if (c >= 'A' && c <= 'F')
1454 val |= c - 'A' + 10;
1455 else if (c == ':' || c == 0)
1459 fprintf(stderr, _("in_ether(%s): invalid ether address!\n"),
1467 *ptr++ = (unsigned char) (val & 0377);
1470 /* We might get a semicolon here - not required. */
1472 if (i == ETH_ALEN) {
1474 fprintf(stderr, _("in_ether(%s): trailing : ignored!\n"),
1483 /* That's it. Any trailing junk? */
1484 if ((i == ETH_ALEN) && (*bufp != '\0')) {
1486 fprintf(stderr, _("in_ether(%s): trailing junk!\n"), orig);
1492 fprintf(stderr, "in_ether(%s): %s\n", orig, pr_ether(sap->sa_data));
1497 #endif /* KEEP_UNUSED */
1500 static struct hwtype ether_hwtype = {
1501 "ether", "Ethernet", ARPHRD_ETHER, ETH_ALEN,
1502 pr_ether, NULL /* UNUSED in_ether */ , NULL
1506 #endif /* HAVE_HWETHER */
1511 #include <net/if_arp.h>
1514 /* Start the PPP encapsulation on the file descriptor. */
1515 static int do_ppp(int fd)
1517 fprintf(stderr, _("You cannot start PPP with this program.\n"));
1520 #endif /* KEEP_UNUSED */
1522 static struct hwtype ppp_hwtype = {
1523 "ppp", "Point-Point Protocol", ARPHRD_PPP, 0,
1524 NULL, NULL, NULL /* UNUSED do_ppp */ , 0
1528 #endif /* HAVE_PPP */
1530 static struct hwtype *hwtypes[] = {
1552 #ifdef ARPHRD_IEEE802_TR
1605 static short sVhwinit = 0;
1607 static void hwinit()
1609 loop_hwtype.title = _("Local Loopback");
1610 unspec_hwtype.title = _("UNSPEC");
1612 slip_hwtype.title = _("Serial Line IP");
1613 cslip_hwtype.title = _("VJ Serial Line IP");
1614 slip6_hwtype.title = _("6-bit Serial Line IP");
1615 cslip6_hwtype.title = _("VJ 6-bit Serial Line IP");
1616 adaptive_hwtype.title = _("Adaptive Serial Line IP");
1619 ether_hwtype.title = _("Ethernet");
1622 ash_hwtype.title = _("Ash");
1625 fddi_hwtype.title = _("Fiber Distributed Data Interface");
1628 hippi_hwtype.title = _("HIPPI");
1631 ax25_hwtype.title = _("AMPR AX.25");
1634 rose_hwtype.title = _("AMPR ROSE");
1637 netrom_hwtype.title = _("AMPR NET/ROM");
1640 x25_hwtype.title = _("generic X.25");
1643 tunnel_hwtype.title = _("IPIP Tunnel");
1646 ppp_hwtype.title = _("Point-to-Point Protocol");
1649 hdlc_hwtype.title = _("(Cisco)-HDLC");
1650 lapb_hwtype.title = _("LAPB");
1653 arcnet_hwtype.title = _("ARCnet");
1656 dlci_hwtype.title = _("Frame Relay DLCI");
1657 frad_hwtype.title = _("Frame Relay Access Device");
1660 sit_hwtype.title = _("IPv6-in-IPv4");
1663 irda_hwtype.title = _("IrLAP");
1666 tr_hwtype.title = _("16/4 Mbps Token Ring");
1667 #ifdef ARPHRD_IEEE802_TR
1668 tr_hwtype1.title = _("16/4 Mbps Token Ring (New)");
1672 ec_hwtype.title = _("Econet");
1676 #endif /* KEEP_UNUSED */
1679 static const char *if_port_text[][4] = {
1680 /* Keep in step with <linux/netdevice.h> */
1681 {"unknown", NULL, NULL, NULL},
1682 {"10base2", "bnc", "coax", NULL},
1683 {"10baseT", "utp", "tpe", NULL},
1684 {"AUI", "thick", "db15", NULL},
1685 {"100baseT", NULL, NULL, NULL},
1686 {"100baseTX", NULL, NULL, NULL},
1687 {"100baseFX", NULL, NULL, NULL},
1688 {NULL, NULL, NULL, NULL},
1692 /* Check our hardware type table for this type. */
1693 static struct hwtype *get_hwntype(int type)
1695 struct hwtype **hwp;
1700 #endif /* KEEP_UNUSED */
1703 while (*hwp != NULL) {
1704 if ((*hwp)->type == type)
1711 /* return 1 if address is all zeros */
1712 static int hw_null_address(struct hwtype *hw, void *ap)
1715 unsigned char *address = (unsigned char *) ap;
1717 for (i = 0; i < hw->alen; i++)
1723 static const char TRext[] = "\0\0k\0M";
1725 static void print_bytes_scaled(unsigned long long ull, const char *end)
1727 unsigned long long int_part;
1728 unsigned long frac_part;
1735 for (i = 0; i < 2; i++) {
1736 if (int_part >= 1024) {
1737 frac_part = ((int_part % 1024) * 10) / 1024;
1739 ext += 2; /* Kb, Mb */
1743 printf("X bytes:%Lu (%Lu.%lu %siB)%s", ull, int_part, frac_part, ext, end);
1746 static void ife_print(struct interface *ptr)
1751 int can_compress = 0;
1754 static struct aftype *ipxtype = NULL;
1757 static struct aftype *ectype = NULL;
1760 static struct aftype *ddptype = NULL;
1764 char addr6[40], devname[20];
1765 struct sockaddr_in6 sap;
1766 int plen, scope, dad_status, if_idx;
1770 ap = get_afntype(ptr->addr.sa_family);
1772 ap = get_afntype(0);
1776 if (hf == ARPHRD_CSLIP || hf == ARPHRD_CSLIP6)
1779 hw = get_hwntype(hf);
1781 hw = get_hwntype(-1);
1783 printf(_("%-9.9s Link encap:%s "), ptr->name, _(hw->title));
1784 /* For some hardware types (eg Ash, ATM) we don't print the
1785 hardware address if it's null. */
1786 if (hw->print != NULL && (!(hw_null_address(hw, ptr->hwaddr) &&
1787 hw->suppress_null_addr)))
1788 printf(_("HWaddr %s "), hw->print(ptr->hwaddr));
1790 if (ptr->flags & IFF_PORTSEL) {
1791 printf(_("Media:%s"), if_port_text[ptr->map.port][0]);
1792 if (ptr->flags & IFF_AUTOMEDIA)
1793 printf(_("(auto)"));
1800 printf(_(" %s addr:%s "), ap->name,
1801 ap->sprint(&ptr->addr, 1));
1802 if (ptr->flags & IFF_POINTOPOINT) {
1803 printf(_(" P-t-P:%s "), ap->sprint(&ptr->dstaddr, 1));
1805 if (ptr->flags & IFF_BROADCAST) {
1806 printf(_(" Bcast:%s "), ap->sprint(&ptr->broadaddr, 1));
1808 printf(_(" Mask:%s\n"), ap->sprint(&ptr->netmask, 1));
1814 #define IPV6_ADDR_ANY 0x0000U
1816 #define IPV6_ADDR_UNICAST 0x0001U
1817 #define IPV6_ADDR_MULTICAST 0x0002U
1818 #define IPV6_ADDR_ANYCAST 0x0004U
1820 #define IPV6_ADDR_LOOPBACK 0x0010U
1821 #define IPV6_ADDR_LINKLOCAL 0x0020U
1822 #define IPV6_ADDR_SITELOCAL 0x0040U
1824 #define IPV6_ADDR_COMPATv4 0x0080U
1826 #define IPV6_ADDR_SCOPE_MASK 0x00f0U
1828 #define IPV6_ADDR_MAPPED 0x1000U
1829 #define IPV6_ADDR_RESERVED 0x2000U /* reserved address space */
1831 if ((f = fopen(_PATH_PROCNET_IFINET6, "r")) != NULL) {
1833 (f, "%4s%4s%4s%4s%4s%4s%4s%4s %02x %02x %02x %02x %20s\n",
1834 addr6p[0], addr6p[1], addr6p[2], addr6p[3], addr6p[4],
1835 addr6p[5], addr6p[6], addr6p[7], &if_idx, &plen, &scope,
1836 &dad_status, devname) != EOF) {
1837 if (!strcmp(devname, ptr->name)) {
1838 sprintf(addr6, "%s:%s:%s:%s:%s:%s:%s:%s",
1839 addr6p[0], addr6p[1], addr6p[2], addr6p[3],
1840 addr6p[4], addr6p[5], addr6p[6], addr6p[7]);
1841 inet_pton(AF_INET6, addr6,
1842 (struct sockaddr *) &sap.sin6_addr);
1843 sap.sin6_family = AF_INET6;
1844 printf(_(" inet6 addr: %s/%d"),
1845 inet6_aftype.sprint((struct sockaddr *) &sap, 1),
1847 printf(_(" Scope:"));
1848 switch (scope & IPV6_ADDR_SCOPE_MASK) {
1850 printf(_("Global"));
1852 case IPV6_ADDR_LINKLOCAL:
1855 case IPV6_ADDR_SITELOCAL:
1858 case IPV6_ADDR_COMPATv4:
1859 printf(_("Compat"));
1861 case IPV6_ADDR_LOOPBACK:
1865 printf(_("Unknown"));
1875 if (ipxtype == NULL)
1876 ipxtype = get_afntype(AF_IPX);
1878 if (ipxtype != NULL) {
1879 if (ptr->has_ipx_bb)
1880 printf(_(" IPX/Ethernet II addr:%s\n"),
1881 ipxtype->sprint(&ptr->ipxaddr_bb, 1));
1882 if (ptr->has_ipx_sn)
1883 printf(_(" IPX/Ethernet SNAP addr:%s\n"),
1884 ipxtype->sprint(&ptr->ipxaddr_sn, 1));
1885 if (ptr->has_ipx_e2)
1886 printf(_(" IPX/Ethernet 802.2 addr:%s\n"),
1887 ipxtype->sprint(&ptr->ipxaddr_e2, 1));
1888 if (ptr->has_ipx_e3)
1889 printf(_(" IPX/Ethernet 802.3 addr:%s\n"),
1890 ipxtype->sprint(&ptr->ipxaddr_e3, 1));
1895 if (ddptype == NULL)
1896 ddptype = get_afntype(AF_APPLETALK);
1897 if (ddptype != NULL) {
1899 printf(_(" EtherTalk Phase 2 addr:%s\n"),
1900 ddptype->sprint(&ptr->ddpaddr, 1));
1906 ectype = get_afntype(AF_ECONET);
1907 if (ectype != NULL) {
1908 if (ptr->has_econet)
1909 printf(_(" econet addr:%s\n"),
1910 ectype->sprint(&ptr->ecaddr, 1));
1915 /* DONT FORGET TO ADD THE FLAGS IN ife_print_short, too */
1916 if (ptr->flags == 0)
1917 printf(_("[NO FLAGS] "));
1918 if (ptr->flags & IFF_UP)
1920 if (ptr->flags & IFF_BROADCAST)
1921 printf(_("BROADCAST "));
1922 if (ptr->flags & IFF_DEBUG)
1923 printf(_("DEBUG "));
1924 if (ptr->flags & IFF_LOOPBACK)
1925 printf(_("LOOPBACK "));
1926 if (ptr->flags & IFF_POINTOPOINT)
1927 printf(_("POINTOPOINT "));
1928 if (ptr->flags & IFF_NOTRAILERS)
1929 printf(_("NOTRAILERS "));
1930 if (ptr->flags & IFF_RUNNING)
1931 printf(_("RUNNING "));
1932 if (ptr->flags & IFF_NOARP)
1933 printf(_("NOARP "));
1934 if (ptr->flags & IFF_PROMISC)
1935 printf(_("PROMISC "));
1936 if (ptr->flags & IFF_ALLMULTI)
1937 printf(_("ALLMULTI "));
1938 if (ptr->flags & IFF_SLAVE)
1939 printf(_("SLAVE "));
1940 if (ptr->flags & IFF_MASTER)
1941 printf(_("MASTER "));
1942 if (ptr->flags & IFF_MULTICAST)
1943 printf(_("MULTICAST "));
1945 if (ptr->flags & IFF_DYNAMIC)
1946 printf(_("DYNAMIC "));
1948 /* DONT FORGET TO ADD THE FLAGS IN ife_print_short */
1949 printf(_(" MTU:%d Metric:%d"), ptr->mtu, ptr->metric ? ptr->metric : 1);
1950 #ifdef SIOCSKEEPALIVE
1951 if (ptr->outfill || ptr->keepalive)
1952 printf(_(" Outfill:%d Keepalive:%d"), ptr->outfill, ptr->keepalive);
1956 /* If needed, display the interface statistics. */
1958 if (ptr->statistics_valid) {
1959 /* XXX: statistics are currently only printed for the primary address,
1960 * not for the aliases, although strictly speaking they're shared
1966 ("RX packets:%Lu errors:%lu dropped:%lu overruns:%lu frame:%lu\n"),
1967 ptr->stats.rx_packets, ptr->stats.rx_errors,
1968 ptr->stats.rx_dropped, ptr->stats.rx_fifo_errors,
1969 ptr->stats.rx_frame_errors);
1971 printf(_(" compressed:%lu\n"),
1972 ptr->stats.rx_compressed);
1975 ("TX packets:%Lu errors:%lu dropped:%lu overruns:%lu carrier:%lu\n"),
1976 ptr->stats.tx_packets, ptr->stats.tx_errors,
1977 ptr->stats.tx_dropped, ptr->stats.tx_fifo_errors,
1978 ptr->stats.tx_carrier_errors);
1979 printf(_(" collisions:%lu "), ptr->stats.collisions);
1981 printf(_("compressed:%lu "), ptr->stats.tx_compressed);
1982 if (ptr->tx_queue_len != -1)
1983 printf(_("txqueuelen:%d "), ptr->tx_queue_len);
1985 print_bytes_scaled(ptr->stats.rx_bytes, " T");
1986 print_bytes_scaled(ptr->stats.tx_bytes, "\n");
1990 if ((ptr->map.irq || ptr->map.mem_start || ptr->map.dma ||
1991 ptr->map.base_addr)) {
1994 printf(_("Interrupt:%d "), ptr->map.irq);
1995 if (ptr->map.base_addr >= 0x100) /* Only print devices using it for
1997 printf(_("Base address:0x%lx "),
1998 (unsigned long) ptr->map.base_addr);
1999 if (ptr->map.mem_start) {
2000 printf(_("Memory:%lx-%lx "), ptr->map.mem_start,
2004 printf(_("DMA chan:%x "), ptr->map.dma);
2011 static int do_if_print(struct interface *ife, void *cookie)
2013 int *opt_a = (int *) cookie;
2016 res = do_if_fetch(ife);
2018 if ((ife->flags & IFF_UP) || *opt_a)
2024 static struct interface *lookup_interface(char *name)
2026 struct interface *ife = NULL;
2028 if (if_readlist_proc(name) < 0)
2030 ife = add_interface(name);
2034 /* for ipv4 add/del modes */
2035 static int if_print(char *ifname)
2040 res = for_all_interfaces(do_if_print, &interface_opt_a);
2042 struct interface *ife;
2044 ife = lookup_interface(ifname);
2045 res = do_if_fetch(ife);
2052 int display_interfaces(char *ifname)
2056 /* Create a channel to the NET kernel. */
2057 if ((skfd = sockets_open(0)) < 0) {
2058 perror_msg_and_die("socket");
2061 /* Do we have to show the current setup? */
2062 status = if_print(ifname);