1 /* vi: set sw=4 ts=4: */
3 * stolen from net-tools-1.59 and stripped down for busybox by
4 * Erik Andersen <andersen@codepoet.org>
6 * Heavily modified by Manuel Novoa III Mar 12, 2001
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.
19 * Author: Fred N. van Kempen, <waltje@uwalt.nl.mugnet.org>
20 * and others. Copyright 1993 MicroWalt Corporation
22 * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
24 * Patched to support 'add' and 'del' keywords for INET(4) addresses
25 * by Mrs. Brisby <mrs.brisby@nimh.org>
27 * {1.34} - 19980630 - Arnaldo Carvalho de Melo <acme@conectiva.com.br>
28 * - gettext instead of catgets for i18n
29 * 10/1998 - Andi Kleen. Use interface list primitives.
30 * 20001008 - Bernd Eckenfels, Patch from RH for setting mtu
31 * (default AF was wrong)
34 #include <net/if_arp.h>
35 #if (defined(__GLIBC__) && __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 1) || defined(_NEWLIB_VERSION)
36 # include <net/ethernet.h>
38 # include <linux/if_ether.h>
41 #include "inet_common.h"
43 #if ENABLE_FEATURE_HWIB
44 /* #include <linux/if_infiniband.h> */
45 # undef INFINIBAND_ALEN
46 # define INFINIBAND_ALEN 20
49 #if ENABLE_FEATURE_IPV6
50 # define HAVE_AFINET6 1
55 #define _PATH_PROCNET_DEV "/proc/net/dev"
56 #define _PATH_PROCNET_IFINET6 "/proc/net/if_inet6"
61 * This is from linux/include/net/ipv6.h
64 struct in6_addr ifr6_addr;
65 uint32_t ifr6_prefixlen;
66 unsigned int ifr6_ifindex;
69 #endif /* HAVE_AFINET6 */
71 /* Defines for glibc2.0 users. */
73 # define SIOCSIFTXQLEN 0x8943
74 # define SIOCGIFTXQLEN 0x8942
77 /* ifr_qlen is ifru_ivalue, but it isn't present in 2.0 kernel headers */
79 # define ifr_qlen ifr_ifru.ifru_mtu
82 #ifndef HAVE_TXQUEUELEN
83 # define HAVE_TXQUEUELEN 1
87 # define IFF_DYNAMIC 0x8000 /* dialup device with changing addresses */
90 /* Display an Internet socket address. */
91 static const char* FAST_FUNC INET_sprint(struct sockaddr *sap, int numeric)
93 static char *buff; /* defaults to NULL */
96 if (sap->sa_family == 0xFFFF || sap->sa_family == 0)
98 buff = INET_rresolve((struct sockaddr_in *) sap, numeric, 0xffffff00);
102 #ifdef UNUSED_AND_BUGGY
103 static int INET_getsock(char *bufp, struct sockaddr *sap)
105 char *sp = bufp, *bp;
108 struct sockaddr_in *sock_in;
110 sock_in = (struct sockaddr_in *) sap;
111 sock_in->sin_family = AF_INET;
112 sock_in->sin_port = 0;
116 for (i = 0; i < sizeof(sock_in->sin_addr.s_addr); i++) {
119 if ((unsigned)(*sp - 'A') <= 5)
120 bp[i] |= (int) (*sp - ('A' - 10));
121 else if (isdigit(*sp))
122 bp[i] |= (int) (*sp - '0');
130 if ((unsigned)(*sp - 'A') <= 5)
131 bp[i] |= (int) (*sp - ('A' - 10));
132 else if (isdigit(*sp))
133 bp[i] |= (int) (*sp - '0');
139 sock_in->sin_addr.s_addr = htonl(val);
145 static int FAST_FUNC INET_input(/*int type,*/ const char *bufp, struct sockaddr *sap)
147 return INET_resolve(bufp, (struct sockaddr_in *) sap, 0);
151 return (INET_getsock(bufp, sap));
153 return (INET_resolve(bufp, (struct sockaddr_in *) sap, 1));
155 return (INET_resolve(bufp, (struct sockaddr_in *) sap, 0));
160 static const struct aftype inet_aftype = {
162 .title = "DARPA Internet",
165 .sprint = INET_sprint,
171 /* Display an Internet socket address. */
172 /* dirty! struct sockaddr usually doesn't suffer for inet6 addresses, fst. */
173 static const char* FAST_FUNC INET6_sprint(struct sockaddr *sap, int numeric)
178 if (sap->sa_family == 0xFFFF || sap->sa_family == 0)
180 buff = INET6_rresolve((struct sockaddr_in6 *) sap, numeric);
185 static int INET6_getsock(char *bufp, struct sockaddr *sap)
187 struct sockaddr_in6 *sin6;
189 sin6 = (struct sockaddr_in6 *) sap;
190 sin6->sin6_family = AF_INET6;
193 if (inet_pton(AF_INET6, bufp, sin6->sin6_addr.s6_addr) <= 0)
200 static int FAST_FUNC INET6_input(/*int type,*/ const char *bufp, struct sockaddr *sap)
202 return INET6_resolve(bufp, (struct sockaddr_in6 *) sap);
206 return (INET6_getsock(bufp, sap));
208 return (INET6_resolve(bufp, (struct sockaddr_in6 *) sap));
213 static const struct aftype inet6_aftype = {
217 .alen = sizeof(struct in6_addr),
218 .sprint = INET6_sprint,
219 .input = INET6_input,
222 #endif /* HAVE_AFINET6 */
224 /* Display an UNSPEC address. */
225 static char* FAST_FUNC UNSPEC_print(unsigned char *ptr)
233 buff = xmalloc(sizeof(struct sockaddr) * 3 + 1);
235 for (i = 0; i < sizeof(struct sockaddr); i++) {
236 /* careful -- not every libc's sprintf returns # bytes written */
237 sprintf(pos, "%02X-", (*ptr++ & 0377));
240 /* Erase trailing "-". Works as long as sizeof(struct sockaddr) != 0 */
245 /* Display an UNSPEC socket address. */
246 static const char* FAST_FUNC UNSPEC_sprint(struct sockaddr *sap, int numeric UNUSED_PARAM)
248 if (sap->sa_family == 0xFFFF || sap->sa_family == 0)
250 return UNSPEC_print((unsigned char *)sap->sa_data);
253 static const struct aftype unspec_aftype = {
258 .print = UNSPEC_print,
259 .sprint = UNSPEC_sprint,
262 static const struct aftype *const aftypes[] = {
271 /* Check our protocol family table for this family. */
272 const struct aftype* FAST_FUNC get_aftype(const char *name)
274 const struct aftype *const *afp;
277 while (*afp != NULL) {
278 if (!strcmp((*afp)->name, name))
285 /* Check our protocol family table for this family. */
286 static const struct aftype *get_afntype(int af)
288 const struct aftype *const *afp;
291 while (*afp != NULL) {
292 if ((*afp)->af == af)
299 struct user_net_device_stats {
300 unsigned long long rx_packets; /* total packets received */
301 unsigned long long tx_packets; /* total packets transmitted */
302 unsigned long long rx_bytes; /* total bytes received */
303 unsigned long long tx_bytes; /* total bytes transmitted */
304 unsigned long rx_errors; /* bad packets received */
305 unsigned long tx_errors; /* packet transmit problems */
306 unsigned long rx_dropped; /* no space in linux buffers */
307 unsigned long tx_dropped; /* no space available in linux */
308 unsigned long rx_multicast; /* multicast packets received */
309 unsigned long rx_compressed;
310 unsigned long tx_compressed;
311 unsigned long collisions;
313 /* detailed rx_errors: */
314 unsigned long rx_length_errors;
315 unsigned long rx_over_errors; /* receiver ring buff overflow */
316 unsigned long rx_crc_errors; /* recved pkt with crc error */
317 unsigned long rx_frame_errors; /* recv'd frame alignment error */
318 unsigned long rx_fifo_errors; /* recv'r fifo overrun */
319 unsigned long rx_missed_errors; /* receiver missed packet */
320 /* detailed tx_errors */
321 unsigned long tx_aborted_errors;
322 unsigned long tx_carrier_errors;
323 unsigned long tx_fifo_errors;
324 unsigned long tx_heartbeat_errors;
325 unsigned long tx_window_errors;
329 struct interface *next, *prev;
330 char name[IFNAMSIZ]; /* interface name */
331 short type; /* if type */
332 short flags; /* various flags */
333 int metric; /* routing metric */
334 int mtu; /* MTU value */
335 int tx_queue_len; /* transmit queue length */
336 struct ifmap map; /* hardware setup */
337 struct sockaddr addr; /* IP address */
338 struct sockaddr dstaddr; /* P-P IP address */
339 struct sockaddr broadaddr; /* IP broadcast address */
340 struct sockaddr netmask; /* IP network mask */
342 char hwaddr[32]; /* HW address */
343 int statistics_valid;
344 struct user_net_device_stats stats; /* statistics */
345 int keepalive; /* keepalive value for SLIP */
346 int outfill; /* outfill value for SLIP */
350 smallint interface_opt_a; /* show all interfaces */
352 static struct interface *int_list, *int_last;
356 /* like strcmp(), but knows about numbers */
357 except that the freshly added calls to xatoul() brf on ethernet aliases with
358 uClibc with e.g.: ife->name='lo' name='eth0:1'
359 static int nstrcmp(const char *a, const char *b)
361 const char *a_ptr = a;
362 const char *b_ptr = b;
368 if (!isdigit(*a) && isdigit(*(a+1))) {
376 if (isdigit(*a) && isdigit(*b)) {
377 return xatoul(a_ptr) > xatoul(b_ptr) ? 1 : -1;
383 static struct interface *add_interface(char *name)
385 struct interface *ife, **nextp, *new;
387 for (ife = int_last; ife; ife = ife->prev) {
388 int n = /*n*/strcmp(ife->name, name);
396 new = xzalloc(sizeof(*new));
397 strncpy_IFNAMSIZ(new->name, name);
398 nextp = ife ? &ife->next : &int_list;
402 new->next->prev = new;
409 static char *get_name(char *name, char *p)
411 /* Extract <name> from nul-terminated p where p matches
412 * <name>: after leading whitespace.
413 * If match is not made, set name empty and return unchanged p
416 char *namestart = skip_whitespace(p);
419 while (*nameend && *nameend != ':' && !isspace(*nameend))
421 if (*nameend == ':') {
422 if ((nameend - namestart) < IFNAMSIZ) {
423 memcpy(name, namestart, nameend - namestart);
424 name[nameend - namestart] = '\0';
427 /* Interface name too large */
431 /* trailing ':' not found - return empty */
437 /* If scanf supports size qualifiers for %n conversions, then we can
438 * use a modified fmt that simply stores the position in the fields
439 * having no associated fields in the proc string. Of course, we need
440 * to zero them again when we're done. But that is smaller than the
441 * old approach of multiple scanf occurrences with large numbers of
444 /* static const char *const ss_fmt[] = { */
445 /* "%lln%llu%lu%lu%lu%lu%ln%ln%lln%llu%lu%lu%lu%lu%lu", */
446 /* "%llu%llu%lu%lu%lu%lu%ln%ln%llu%llu%lu%lu%lu%lu%lu", */
447 /* "%llu%llu%lu%lu%lu%lu%lu%lu%llu%llu%lu%lu%lu%lu%lu%lu" */
450 /* Lie about the size of the int pointed to for %n. */
451 #if INT_MAX == LONG_MAX
452 static const char *const ss_fmt[] = {
453 "%n%llu%u%u%u%u%n%n%n%llu%u%u%u%u%u",
454 "%llu%llu%u%u%u%u%n%n%llu%llu%u%u%u%u%u",
455 "%llu%llu%u%u%u%u%u%u%llu%llu%u%u%u%u%u%u"
458 static const char *const ss_fmt[] = {
459 "%n%llu%lu%lu%lu%lu%n%n%n%llu%lu%lu%lu%lu%lu",
460 "%llu%llu%lu%lu%lu%lu%n%n%llu%llu%lu%lu%lu%lu%lu",
461 "%llu%llu%lu%lu%lu%lu%lu%lu%llu%llu%lu%lu%lu%lu%lu%lu"
466 static void get_dev_fields(char *bp, struct interface *ife, int procnetdev_vsn)
468 memset(&ife->stats, 0, sizeof(struct user_net_device_stats));
470 sscanf(bp, ss_fmt[procnetdev_vsn],
471 &ife->stats.rx_bytes, /* missing for 0 */
472 &ife->stats.rx_packets,
473 &ife->stats.rx_errors,
474 &ife->stats.rx_dropped,
475 &ife->stats.rx_fifo_errors,
476 &ife->stats.rx_frame_errors,
477 &ife->stats.rx_compressed, /* missing for <= 1 */
478 &ife->stats.rx_multicast, /* missing for <= 1 */
479 &ife->stats.tx_bytes, /* missing for 0 */
480 &ife->stats.tx_packets,
481 &ife->stats.tx_errors,
482 &ife->stats.tx_dropped,
483 &ife->stats.tx_fifo_errors,
484 &ife->stats.collisions,
485 &ife->stats.tx_carrier_errors,
486 &ife->stats.tx_compressed /* missing for <= 1 */
489 if (procnetdev_vsn <= 1) {
490 if (procnetdev_vsn == 0) {
491 ife->stats.rx_bytes = 0;
492 ife->stats.tx_bytes = 0;
494 ife->stats.rx_multicast = 0;
495 ife->stats.rx_compressed = 0;
496 ife->stats.tx_compressed = 0;
500 static int procnetdev_version(char *buf)
502 if (strstr(buf, "compressed"))
504 if (strstr(buf, "bytes"))
509 static int if_readconf(void)
519 /* SIOCGIFCONF currently seems to only work properly on AF_INET sockets
521 skfd = socket(AF_INET, SOCK_DGRAM, 0);
523 bb_perror_msg("error: no inet socket available");
528 ifc.ifc_len = sizeof(struct ifreq) * numreqs;
529 ifc.ifc_buf = xrealloc(ifc.ifc_buf, ifc.ifc_len);
531 if (ioctl_or_warn(skfd, SIOCGIFCONF, &ifc) < 0) {
534 if (ifc.ifc_len == (int)(sizeof(struct ifreq) * numreqs)) {
535 /* assume it overflowed and try again */
543 for (n = 0; n < ifc.ifc_len; n += sizeof(struct ifreq)) {
544 add_interface(ifr->ifr_name);
555 static int if_readlist_proc(char *target)
557 static smallint proc_read;
561 struct interface *ife;
562 int err, procnetdev_vsn;
569 fh = fopen_or_warn(_PATH_PROCNET_DEV, "r");
571 return if_readconf();
573 fgets(buf, sizeof buf, fh); /* eat line */
574 fgets(buf, sizeof buf, fh);
576 procnetdev_vsn = procnetdev_version(buf);
579 while (fgets(buf, sizeof buf, fh)) {
582 s = get_name(name, buf);
583 ife = add_interface(name);
584 get_dev_fields(s, ife, procnetdev_vsn);
585 ife->statistics_valid = 1;
586 if (target && !strcmp(target, name))
590 bb_perror_msg(_PATH_PROCNET_DEV);
598 static int if_readlist(void)
600 int err = if_readlist_proc(NULL);
601 /* Needed in order to get ethN:M aliases */
607 /* Fetch the interface configuration from the kernel. */
608 static int if_fetch(struct interface *ife)
611 char *ifname = ife->name;
614 skfd = xsocket(AF_INET, SOCK_DGRAM, 0);
616 strncpy_IFNAMSIZ(ifr.ifr_name, ifname);
617 if (ioctl(skfd, SIOCGIFFLAGS, &ifr) < 0) {
621 ife->flags = ifr.ifr_flags;
623 strncpy_IFNAMSIZ(ifr.ifr_name, ifname);
624 memset(ife->hwaddr, 0, 32);
625 if (ioctl(skfd, SIOCGIFHWADDR, &ifr) >= 0)
626 memcpy(ife->hwaddr, ifr.ifr_hwaddr.sa_data, 8);
628 ife->type = ifr.ifr_hwaddr.sa_family;
630 strncpy_IFNAMSIZ(ifr.ifr_name, ifname);
632 if (ioctl(skfd, SIOCGIFMETRIC, &ifr) >= 0)
633 ife->metric = ifr.ifr_metric;
635 strncpy_IFNAMSIZ(ifr.ifr_name, ifname);
637 if (ioctl(skfd, SIOCGIFMTU, &ifr) >= 0)
638 ife->mtu = ifr.ifr_mtu;
640 memset(&ife->map, 0, sizeof(struct ifmap));
642 strncpy_IFNAMSIZ(ifr.ifr_name, ifname);
643 if (ioctl(skfd, SIOCGIFMAP, &ifr) == 0)
644 ife->map = ifr.ifr_map;
647 #ifdef HAVE_TXQUEUELEN
648 strncpy_IFNAMSIZ(ifr.ifr_name, ifname);
649 ife->tx_queue_len = -1; /* unknown value */
650 if (ioctl(skfd, SIOCGIFTXQLEN, &ifr) >= 0)
651 ife->tx_queue_len = ifr.ifr_qlen;
653 ife->tx_queue_len = -1; /* unknown value */
656 strncpy_IFNAMSIZ(ifr.ifr_name, ifname);
657 ifr.ifr_addr.sa_family = AF_INET;
658 memset(&ife->addr, 0, sizeof(struct sockaddr));
659 if (ioctl(skfd, SIOCGIFADDR, &ifr) == 0) {
661 ife->addr = ifr.ifr_addr;
662 strncpy_IFNAMSIZ(ifr.ifr_name, ifname);
663 memset(&ife->dstaddr, 0, sizeof(struct sockaddr));
664 if (ioctl(skfd, SIOCGIFDSTADDR, &ifr) >= 0)
665 ife->dstaddr = ifr.ifr_dstaddr;
667 strncpy_IFNAMSIZ(ifr.ifr_name, ifname);
668 memset(&ife->broadaddr, 0, sizeof(struct sockaddr));
669 if (ioctl(skfd, SIOCGIFBRDADDR, &ifr) >= 0)
670 ife->broadaddr = ifr.ifr_broadaddr;
672 strncpy_IFNAMSIZ(ifr.ifr_name, ifname);
673 memset(&ife->netmask, 0, sizeof(struct sockaddr));
674 if (ioctl(skfd, SIOCGIFNETMASK, &ifr) >= 0)
675 ife->netmask = ifr.ifr_netmask;
682 static int do_if_fetch(struct interface *ife)
684 if (if_fetch(ife) < 0) {
687 if (errno == ENODEV) {
688 /* Give better error message for this case. */
689 errmsg = "Device not found";
691 errmsg = strerror(errno);
693 bb_error_msg("%s: error fetching interface information: %s",
700 static const struct hwtype unspec_hwtype = {
704 .print = UNSPEC_print
707 static const struct hwtype loop_hwtype = {
709 .title = "Local Loopback",
710 .type = ARPHRD_LOOPBACK
713 /* Display an Ethernet address in readable format. */
714 static char* FAST_FUNC ether_print(unsigned char *ptr)
719 buff = xasprintf("%02X:%02X:%02X:%02X:%02X:%02X",
720 (ptr[0] & 0377), (ptr[1] & 0377), (ptr[2] & 0377),
721 (ptr[3] & 0377), (ptr[4] & 0377), (ptr[5] & 0377)
726 static int FAST_FUNC ether_input(const char *bufp, struct sockaddr *sap);
728 static const struct hwtype ether_hwtype = {
731 .type = ARPHRD_ETHER,
733 .print = ether_print,
737 static unsigned hexchar2int(char c)
741 c &= ~0x20; /* a -> A */
742 if ((unsigned)(c - 'A') <= 5)
743 return c - ('A' - 10);
747 /* Input an Ethernet address and convert to binary. */
748 static int FAST_FUNC ether_input(const char *bufp, struct sockaddr *sap)
755 sap->sa_family = ether_hwtype.type;
756 ptr = (unsigned char*) sap->sa_data;
759 while ((*bufp != '\0') && (i < ETH_ALEN)) {
760 val = hexchar2int(*bufp++) * 0x10;
766 if (c == ':' || c == 0)
769 val |= hexchar2int(c);
777 *ptr++ = (unsigned char) val;
780 /* We might get a semicolon here - not required. */
788 static const struct hwtype ppp_hwtype = {
790 .title = "Point-to-Point Protocol",
794 #if ENABLE_FEATURE_IPV6
795 static const struct hwtype sit_hwtype = {
797 .title = "IPv6-in-IPv4",
799 .print = UNSPEC_print,
800 .suppress_null_addr = 1
803 #if ENABLE_FEATURE_HWIB
804 static const struct hwtype ib_hwtype = {
805 .name = "infiniband",
806 .title = "InfiniBand",
807 .type = ARPHRD_INFINIBAND,
808 .alen = INFINIBAND_ALEN,
809 .print = UNSPEC_print,
815 static const struct hwtype *const hwtypes[] = {
820 #if ENABLE_FEATURE_IPV6
823 #if ENABLE_FEATURE_HWIB
830 static const char *const if_port_text[] = {
831 /* Keep in step with <linux/netdevice.h> */
843 /* Check our hardware type table for this type. */
844 const struct hwtype* FAST_FUNC get_hwtype(const char *name)
846 const struct hwtype *const *hwp;
849 while (*hwp != NULL) {
850 if (!strcmp((*hwp)->name, name))
857 /* Check our hardware type table for this type. */
858 const struct hwtype* FAST_FUNC get_hwntype(int type)
860 const struct hwtype *const *hwp;
863 while (*hwp != NULL) {
864 if ((*hwp)->type == type)
871 /* return 1 if address is all zeros */
872 static int hw_null_address(const struct hwtype *hw, void *ap)
875 unsigned char *address = (unsigned char *) ap;
877 for (i = 0; i < hw->alen; i++)
883 static const char TRext[] ALIGN1 = "\0\0\0Ki\0Mi\0Gi\0Ti";
885 static void print_bytes_scaled(unsigned long long ull, const char *end)
887 unsigned long long int_part;
889 unsigned int frac_part;
897 if (int_part >= 1024) {
898 frac_part = ((((unsigned int) int_part) & (1024-1)) * 10) / 1024;
900 ext += 3; /* KiB, MiB, GiB, TiB */
905 printf("X bytes:%llu (%llu.%u %sB)%s", ull, int_part, frac_part, ext, end);
910 #define IPV6_ADDR_ANY 0x0000U
912 #define IPV6_ADDR_UNICAST 0x0001U
913 #define IPV6_ADDR_MULTICAST 0x0002U
914 #define IPV6_ADDR_ANYCAST 0x0004U
916 #define IPV6_ADDR_LOOPBACK 0x0010U
917 #define IPV6_ADDR_LINKLOCAL 0x0020U
918 #define IPV6_ADDR_SITELOCAL 0x0040U
920 #define IPV6_ADDR_COMPATv4 0x0080U
922 #define IPV6_ADDR_SCOPE_MASK 0x00f0U
924 #define IPV6_ADDR_MAPPED 0x1000U
925 #define IPV6_ADDR_RESERVED 0x2000U /* reserved address space */
928 static void ife_print6(struct interface *ptr)
932 char addr6[40], devname[20];
933 struct sockaddr_in6 sap;
934 int plen, scope, dad_status, if_idx;
937 f = fopen_for_read(_PATH_PROCNET_IFINET6);
942 (f, "%4s%4s%4s%4s%4s%4s%4s%4s %08x %02x %02x %02x %20s\n",
943 addr6p[0], addr6p[1], addr6p[2], addr6p[3], addr6p[4],
944 addr6p[5], addr6p[6], addr6p[7], &if_idx, &plen, &scope,
945 &dad_status, devname) != EOF
947 if (!strcmp(devname, ptr->name)) {
948 sprintf(addr6, "%s:%s:%s:%s:%s:%s:%s:%s",
949 addr6p[0], addr6p[1], addr6p[2], addr6p[3],
950 addr6p[4], addr6p[5], addr6p[6], addr6p[7]);
951 inet_pton(AF_INET6, addr6,
952 (struct sockaddr *) &sap.sin6_addr);
953 sap.sin6_family = AF_INET6;
954 printf(" inet6 addr: %s/%d",
955 INET6_sprint((struct sockaddr *) &sap, 1),
958 switch (scope & IPV6_ADDR_SCOPE_MASK) {
962 case IPV6_ADDR_LINKLOCAL:
965 case IPV6_ADDR_SITELOCAL:
968 case IPV6_ADDR_COMPATv4:
971 case IPV6_ADDR_LOOPBACK:
982 #define ife_print6(a) ((void)0)
985 static void ife_print(struct interface *ptr)
987 const struct aftype *ap;
988 const struct hwtype *hw;
990 int can_compress = 0;
992 ap = get_afntype(ptr->addr.sa_family);
998 if (hf == ARPHRD_CSLIP || hf == ARPHRD_CSLIP6)
1001 hw = get_hwntype(hf);
1003 hw = get_hwntype(-1);
1005 printf("%-9s Link encap:%s ", ptr->name, hw->title);
1006 /* For some hardware types (eg Ash, ATM) we don't print the
1007 hardware address if it's null. */
1008 if (hw->print != NULL
1009 && !(hw_null_address(hw, ptr->hwaddr) && hw->suppress_null_addr)
1011 printf("HWaddr %s ", hw->print((unsigned char *)ptr->hwaddr));
1014 if (ptr->flags & IFF_PORTSEL) {
1015 printf("Media:%s", if_port_text[ptr->map.port] /* [0] */);
1016 if (ptr->flags & IFF_AUTOMEDIA)
1023 printf(" %s addr:%s ", ap->name,
1024 ap->sprint(&ptr->addr, 1));
1025 if (ptr->flags & IFF_POINTOPOINT) {
1026 printf(" P-t-P:%s ", ap->sprint(&ptr->dstaddr, 1));
1028 if (ptr->flags & IFF_BROADCAST) {
1029 printf(" Bcast:%s ", ap->sprint(&ptr->broadaddr, 1));
1031 printf(" Mask:%s\n", ap->sprint(&ptr->netmask, 1));
1037 /* DONT FORGET TO ADD THE FLAGS IN ife_print_short, too */
1039 if (ptr->flags == 0) {
1040 printf("[NO FLAGS] ");
1042 static const char ife_print_flags_strs[] ALIGN1 =
1060 static const unsigned short ife_print_flags_mask[] ALIGN2 = {
1078 const unsigned short *mask = ife_print_flags_mask;
1079 const char *str = ife_print_flags_strs;
1081 if (ptr->flags & *mask) {
1085 str += strlen(str) + 1;
1089 /* DONT FORGET TO ADD THE FLAGS IN ife_print_short */
1090 printf(" MTU:%d Metric:%d", ptr->mtu, ptr->metric ? ptr->metric : 1);
1091 #ifdef SIOCSKEEPALIVE
1092 if (ptr->outfill || ptr->keepalive)
1093 printf(" Outfill:%d Keepalive:%d", ptr->outfill, ptr->keepalive);
1097 /* If needed, display the interface statistics. */
1099 if (ptr->statistics_valid) {
1100 /* XXX: statistics are currently only printed for the primary address,
1101 * not for the aliases, although strictly speaking they're shared
1106 printf("RX packets:%llu errors:%lu dropped:%lu overruns:%lu frame:%lu\n",
1107 ptr->stats.rx_packets, ptr->stats.rx_errors,
1108 ptr->stats.rx_dropped, ptr->stats.rx_fifo_errors,
1109 ptr->stats.rx_frame_errors);
1111 printf(" compressed:%lu\n",
1112 ptr->stats.rx_compressed);
1114 printf("TX packets:%llu errors:%lu dropped:%lu overruns:%lu carrier:%lu\n",
1115 ptr->stats.tx_packets, ptr->stats.tx_errors,
1116 ptr->stats.tx_dropped, ptr->stats.tx_fifo_errors,
1117 ptr->stats.tx_carrier_errors);
1118 printf(" collisions:%lu ", ptr->stats.collisions);
1120 printf("compressed:%lu ", ptr->stats.tx_compressed);
1121 if (ptr->tx_queue_len != -1)
1122 printf("txqueuelen:%d ", ptr->tx_queue_len);
1124 print_bytes_scaled(ptr->stats.rx_bytes, " T");
1125 print_bytes_scaled(ptr->stats.tx_bytes, "\n");
1128 if (ptr->map.irq || ptr->map.mem_start
1129 || ptr->map.dma || ptr->map.base_addr
1133 printf("Interrupt:%d ", ptr->map.irq);
1134 if (ptr->map.base_addr >= 0x100) /* Only print devices using it for
1136 printf("Base address:0x%lx ",
1137 (unsigned long) ptr->map.base_addr);
1138 if (ptr->map.mem_start) {
1139 printf("Memory:%lx-%lx ", ptr->map.mem_start,
1143 printf("DMA chan:%x ", ptr->map.dma);
1149 static int do_if_print(struct interface *ife) /*, int *opt_a)*/
1153 res = do_if_fetch(ife);
1155 if ((ife->flags & IFF_UP) || interface_opt_a)
1161 static struct interface *lookup_interface(char *name)
1163 struct interface *ife = NULL;
1165 if (if_readlist_proc(name) < 0)
1167 ife = add_interface(name);
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 /* for ipv4 add/del modes */
1189 static int if_print(char *ifname)
1191 struct interface *ife;
1195 /*res = for_all_interfaces(do_if_print, &interface_opt_a);*/
1196 if (!int_list && (if_readlist() < 0))
1198 for (ife = int_list; ife; ife = ife->next) {
1199 int err = do_if_print(ife); /*, &interface_opt_a);*/
1205 ife = lookup_interface(ifname);
1206 res = do_if_fetch(ife);
1212 #if ENABLE_FEATURE_HWIB
1213 /* Input an Infiniband address and convert to binary. */
1214 int FAST_FUNC in_ib(const char *bufp, struct sockaddr *sap)
1216 sap->sa_family = ib_hwtype.type;
1217 //TODO: error check?
1218 hex2bin((char*)sap->sa_data, bufp, INFINIBAND_ALEN);
1220 fprintf(stderr, "in_ib(%s): %s\n", bufp, UNSPEC_print(sap->sa_data));
1226 int FAST_FUNC display_interfaces(char *ifname)
1230 status = if_print(ifname);
1232 return (status < 0); /* status < 0 == 1 -- error */