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)
35 #include <net/if_arp.h>
36 #include "inet_common.h"
39 #if ENABLE_FEATURE_IPV6
40 # define HAVE_AFINET6 1
45 #define _PATH_PROCNET_DEV "/proc/net/dev"
46 #define _PATH_PROCNET_IFINET6 "/proc/net/if_inet6"
52 * This is in linux/include/net/ipv6.h.
56 struct in6_addr ifr6_addr;
57 uint32_t ifr6_prefixlen;
58 unsigned int ifr6_ifindex;
63 #endif /* HAVE_AFINET6 */
65 /* Defines for glibc2.0 users. */
67 #define SIOCSIFTXQLEN 0x8943
68 #define SIOCGIFTXQLEN 0x8942
71 /* ifr_qlen is ifru_ivalue, but it isn't present in 2.0 kernel headers */
73 #define ifr_qlen ifr_ifru.ifru_mtu
76 #ifndef HAVE_TXQUEUELEN
77 #define HAVE_TXQUEUELEN 1
81 #define IFF_DYNAMIC 0x8000 /* dialup device with changing addresses */
84 /* Display an Internet socket address. */
85 static const char *INET_sprint(struct sockaddr *sap, int numeric)
90 if (sap->sa_family == 0xFFFF || sap->sa_family == 0)
92 buff = INET_rresolve((struct sockaddr_in *) sap, numeric, 0xffffff00);
96 #ifdef UNUSED_AND_BUGGY
97 static int INET_getsock(char *bufp, struct sockaddr *sap)
102 struct sockaddr_in *sock_in;
104 sock_in = (struct sockaddr_in *) sap;
105 sock_in->sin_family = AF_INET;
106 sock_in->sin_port = 0;
110 for (i = 0; i < sizeof(sock_in->sin_addr.s_addr); i++) {
113 if ((unsigned)(*sp - 'A') <= 5)
114 bp[i] |= (int) (*sp - ('A' - 10));
115 else if (isdigit(*sp))
116 bp[i] |= (int) (*sp - '0');
124 if ((unsigned)(*sp - 'A') <= 5)
125 bp[i] |= (int) (*sp - ('A' - 10));
126 else if (isdigit(*sp))
127 bp[i] |= (int) (*sp - '0');
133 sock_in->sin_addr.s_addr = htonl(val);
139 static int INET_input(/*int type,*/ const char *bufp, struct sockaddr *sap)
141 return INET_resolve(bufp, (struct sockaddr_in *) sap, 0);
145 return (INET_getsock(bufp, sap));
147 return (INET_resolve(bufp, (struct sockaddr_in *) sap, 1));
149 return (INET_resolve(bufp, (struct sockaddr_in *) sap, 0));
154 static const struct aftype inet_aftype = {
156 .title = "DARPA Internet",
159 .sprint = INET_sprint,
165 /* Display an Internet socket address. */
166 /* dirty! struct sockaddr usually doesn't suffer for inet6 addresses, fst. */
167 static const char *INET6_sprint(struct sockaddr *sap, int numeric)
172 if (sap->sa_family == 0xFFFF || sap->sa_family == 0)
174 buff = INET6_rresolve((struct sockaddr_in6 *) sap, numeric);
179 static int INET6_getsock(char *bufp, struct sockaddr *sap)
181 struct sockaddr_in6 *sin6;
183 sin6 = (struct sockaddr_in6 *) sap;
184 sin6->sin6_family = AF_INET6;
187 if (inet_pton(AF_INET6, bufp, sin6->sin6_addr.s6_addr) <= 0)
194 static int INET6_input(/*int type,*/ const char *bufp, struct sockaddr *sap)
196 return INET6_resolve(bufp, (struct sockaddr_in6 *) sap);
200 return (INET6_getsock(bufp, sap));
202 return (INET6_resolve(bufp, (struct sockaddr_in6 *) sap));
207 static const struct aftype inet6_aftype = {
211 .alen = sizeof(struct in6_addr),
212 .sprint = INET6_sprint,
213 .input = INET6_input,
216 #endif /* HAVE_AFINET6 */
218 /* Display an UNSPEC address. */
219 static char *UNSPEC_print(unsigned char *ptr)
227 buff = xmalloc(sizeof(struct sockaddr) * 3 + 1);
229 for (i = 0; i < sizeof(struct sockaddr); i++) {
230 /* careful -- not every libc's sprintf returns # bytes written */
231 sprintf(pos, "%02X-", (*ptr++ & 0377));
234 /* Erase trailing "-". Works as long as sizeof(struct sockaddr) != 0 */
239 /* Display an UNSPEC socket address. */
240 static const char *UNSPEC_sprint(struct sockaddr *sap, int numeric ATTRIBUTE_UNUSED)
242 if (sap->sa_family == 0xFFFF || sap->sa_family == 0)
244 return UNSPEC_print((unsigned char *)sap->sa_data);
247 static const struct aftype unspec_aftype = {
252 .print = UNSPEC_print,
253 .sprint = UNSPEC_sprint,
256 static const struct aftype *const aftypes[] = {
265 /* Check our protocol family table for this family. */
266 const struct aftype *get_aftype(const char *name)
268 const struct aftype *const *afp;
271 while (*afp != NULL) {
272 if (!strcmp((*afp)->name, name))
279 /* Check our protocol family table for this family. */
280 static const struct aftype *get_afntype(int af)
282 const struct aftype *const *afp;
285 while (*afp != NULL) {
286 if ((*afp)->af == af)
293 struct user_net_device_stats {
294 unsigned long long rx_packets; /* total packets received */
295 unsigned long long tx_packets; /* total packets transmitted */
296 unsigned long long rx_bytes; /* total bytes received */
297 unsigned long long tx_bytes; /* total bytes transmitted */
298 unsigned long rx_errors; /* bad packets received */
299 unsigned long tx_errors; /* packet transmit problems */
300 unsigned long rx_dropped; /* no space in linux buffers */
301 unsigned long tx_dropped; /* no space available in linux */
302 unsigned long rx_multicast; /* multicast packets received */
303 unsigned long rx_compressed;
304 unsigned long tx_compressed;
305 unsigned long collisions;
307 /* detailed rx_errors: */
308 unsigned long rx_length_errors;
309 unsigned long rx_over_errors; /* receiver ring buff overflow */
310 unsigned long rx_crc_errors; /* recved pkt with crc error */
311 unsigned long rx_frame_errors; /* recv'd frame alignment error */
312 unsigned long rx_fifo_errors; /* recv'r fifo overrun */
313 unsigned long rx_missed_errors; /* receiver missed packet */
314 /* detailed tx_errors */
315 unsigned long tx_aborted_errors;
316 unsigned long tx_carrier_errors;
317 unsigned long tx_fifo_errors;
318 unsigned long tx_heartbeat_errors;
319 unsigned long tx_window_errors;
323 struct interface *next, *prev;
324 char name[IFNAMSIZ]; /* interface name */
325 short type; /* if type */
326 short flags; /* various flags */
327 int metric; /* routing metric */
328 int mtu; /* MTU value */
329 int tx_queue_len; /* transmit queue length */
330 struct ifmap map; /* hardware setup */
331 struct sockaddr addr; /* IP address */
332 struct sockaddr dstaddr; /* P-P IP address */
333 struct sockaddr broadaddr; /* IP broadcast address */
334 struct sockaddr netmask; /* IP network mask */
336 char hwaddr[32]; /* HW address */
337 int statistics_valid;
338 struct user_net_device_stats stats; /* statistics */
339 int keepalive; /* keepalive value for SLIP */
340 int outfill; /* outfill value for SLIP */
344 smallint interface_opt_a; /* show all interfaces */
346 static struct interface *int_list, *int_last;
350 /* like strcmp(), but knows about numbers */
351 except that the freshly added calls to xatoul() brf on ethernet aliases with
352 uClibc with e.g.: ife->name='lo' name='eth0:1'
353 static int nstrcmp(const char *a, const char *b)
355 const char *a_ptr = a;
356 const char *b_ptr = b;
362 if (!isdigit(*a) && isdigit(*(a+1))) {
370 if (isdigit(*a) && isdigit(*b)) {
371 return xatoul(a_ptr) > xatoul(b_ptr) ? 1 : -1;
377 static struct interface *add_interface(char *name)
379 struct interface *ife, **nextp, *new;
381 for (ife = int_last; ife; ife = ife->prev) {
382 int n = /*n*/strcmp(ife->name, name);
390 new = xzalloc(sizeof(*new));
391 safe_strncpy(new->name, name, IFNAMSIZ);
392 nextp = ife ? &ife->next : &int_list;
396 new->next->prev = new;
403 static char *get_name(char *name, char *p)
405 /* Extract <name> from nul-terminated p where p matches
406 <name>: after leading whitespace.
407 If match is not made, set name empty and return unchanged p */
408 int namestart = 0, nameend = 0;
410 while (isspace(p[namestart]))
413 while (p[nameend] && p[nameend] != ':' && !isspace(p[nameend]))
415 if (p[nameend] == ':') {
416 if ((nameend - namestart) < IFNAMSIZ) {
417 memcpy(name, &p[namestart], nameend - namestart);
418 name[nameend - namestart] = '\0';
421 /* Interface name too large */
425 /* trailing ':' not found - return empty */
431 /* If scanf supports size qualifiers for %n conversions, then we can
432 * use a modified fmt that simply stores the position in the fields
433 * having no associated fields in the proc string. Of course, we need
434 * to zero them again when we're done. But that is smaller than the
435 * old approach of multiple scanf occurrences with large numbers of
438 /* static const char *const ss_fmt[] = { */
439 /* "%lln%llu%lu%lu%lu%lu%ln%ln%lln%llu%lu%lu%lu%lu%lu", */
440 /* "%llu%llu%lu%lu%lu%lu%ln%ln%llu%llu%lu%lu%lu%lu%lu", */
441 /* "%llu%llu%lu%lu%lu%lu%lu%lu%llu%llu%lu%lu%lu%lu%lu%lu" */
444 /* Lie about the size of the int pointed to for %n. */
445 #if INT_MAX == LONG_MAX
446 static const char *const ss_fmt[] = {
447 "%n%llu%u%u%u%u%n%n%n%llu%u%u%u%u%u",
448 "%llu%llu%u%u%u%u%n%n%llu%llu%u%u%u%u%u",
449 "%llu%llu%u%u%u%u%u%u%llu%llu%u%u%u%u%u%u"
452 static const char *const ss_fmt[] = {
453 "%n%llu%lu%lu%lu%lu%n%n%n%llu%lu%lu%lu%lu%lu",
454 "%llu%llu%lu%lu%lu%lu%n%n%llu%llu%lu%lu%lu%lu%lu",
455 "%llu%llu%lu%lu%lu%lu%lu%lu%llu%llu%lu%lu%lu%lu%lu%lu"
460 static void get_dev_fields(char *bp, struct interface *ife, int procnetdev_vsn)
462 memset(&ife->stats, 0, sizeof(struct user_net_device_stats));
464 sscanf(bp, ss_fmt[procnetdev_vsn],
465 &ife->stats.rx_bytes, /* missing for 0 */
466 &ife->stats.rx_packets,
467 &ife->stats.rx_errors,
468 &ife->stats.rx_dropped,
469 &ife->stats.rx_fifo_errors,
470 &ife->stats.rx_frame_errors,
471 &ife->stats.rx_compressed, /* missing for <= 1 */
472 &ife->stats.rx_multicast, /* missing for <= 1 */
473 &ife->stats.tx_bytes, /* missing for 0 */
474 &ife->stats.tx_packets,
475 &ife->stats.tx_errors,
476 &ife->stats.tx_dropped,
477 &ife->stats.tx_fifo_errors,
478 &ife->stats.collisions,
479 &ife->stats.tx_carrier_errors,
480 &ife->stats.tx_compressed /* missing for <= 1 */
483 if (procnetdev_vsn <= 1) {
484 if (procnetdev_vsn == 0) {
485 ife->stats.rx_bytes = 0;
486 ife->stats.tx_bytes = 0;
488 ife->stats.rx_multicast = 0;
489 ife->stats.rx_compressed = 0;
490 ife->stats.tx_compressed = 0;
494 static inline int procnetdev_version(char *buf)
496 if (strstr(buf, "compressed"))
498 if (strstr(buf, "bytes"))
503 static int if_readconf(void)
513 /* SIOCGIFCONF currently seems to only work properly on AF_INET sockets
515 skfd = socket(AF_INET, SOCK_DGRAM, 0);
517 bb_perror_msg("error: no inet socket available");
522 ifc.ifc_len = sizeof(struct ifreq) * numreqs;
523 ifc.ifc_buf = xrealloc(ifc.ifc_buf, ifc.ifc_len);
525 if (ioctl_or_warn(skfd, SIOCGIFCONF, &ifc) < 0) {
528 if (ifc.ifc_len == sizeof(struct ifreq) * numreqs) {
529 /* assume it overflowed and try again */
537 for (n = 0; n < ifc.ifc_len; n += sizeof(struct ifreq)) {
538 add_interface(ifr->ifr_name);
549 static int if_readlist_proc(char *target)
551 static smallint proc_read;
555 struct interface *ife;
556 int err, procnetdev_vsn;
563 fh = fopen(_PATH_PROCNET_DEV, "r");
565 bb_perror_msg("warning: cannot open %s, limiting output", _PATH_PROCNET_DEV);
566 return if_readconf();
568 fgets(buf, sizeof buf, fh); /* eat line */
569 fgets(buf, sizeof buf, fh);
571 procnetdev_vsn = procnetdev_version(buf);
574 while (fgets(buf, sizeof buf, fh)) {
577 s = get_name(name, buf);
578 ife = add_interface(name);
579 get_dev_fields(s, ife, procnetdev_vsn);
580 ife->statistics_valid = 1;
581 if (target && !strcmp(target, name))
585 bb_perror_msg(_PATH_PROCNET_DEV);
593 static int if_readlist(void)
595 int err = if_readlist_proc(NULL);
596 /* Needed in order to get ethN:M aliases */
602 /* Fetch the interface configuration from the kernel. */
603 static int if_fetch(struct interface *ife)
606 char *ifname = ife->name;
609 skfd = xsocket(AF_INET, SOCK_DGRAM, 0);
611 strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
612 if (ioctl(skfd, SIOCGIFFLAGS, &ifr) < 0) {
616 ife->flags = ifr.ifr_flags;
618 strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
619 memset(ife->hwaddr, 0, 32);
620 if (ioctl(skfd, SIOCGIFHWADDR, &ifr) >= 0)
621 memcpy(ife->hwaddr, ifr.ifr_hwaddr.sa_data, 8);
623 ife->type = ifr.ifr_hwaddr.sa_family;
625 strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
627 if (ioctl(skfd, SIOCGIFMETRIC, &ifr) >= 0)
628 ife->metric = ifr.ifr_metric;
630 strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
632 if (ioctl(skfd, SIOCGIFMTU, &ifr) >= 0)
633 ife->mtu = ifr.ifr_mtu;
635 memset(&ife->map, 0, sizeof(struct ifmap));
637 strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
638 if (ioctl(skfd, SIOCGIFMAP, &ifr) == 0)
639 ife->map = ifr.ifr_map;
642 #ifdef HAVE_TXQUEUELEN
643 strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
644 ife->tx_queue_len = -1; /* unknown value */
645 if (ioctl(skfd, SIOCGIFTXQLEN, &ifr) >= 0)
646 ife->tx_queue_len = ifr.ifr_qlen;
648 ife->tx_queue_len = -1; /* unknown value */
651 strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
652 ifr.ifr_addr.sa_family = AF_INET;
653 memset(&ife->addr, 0, sizeof(struct sockaddr));
654 if (ioctl(skfd, SIOCGIFADDR, &ifr) == 0) {
656 ife->addr = ifr.ifr_addr;
657 strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
658 memset(&ife->dstaddr, 0, sizeof(struct sockaddr));
659 if (ioctl(skfd, SIOCGIFDSTADDR, &ifr) >= 0)
660 ife->dstaddr = ifr.ifr_dstaddr;
662 strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
663 memset(&ife->broadaddr, 0, sizeof(struct sockaddr));
664 if (ioctl(skfd, SIOCGIFBRDADDR, &ifr) >= 0)
665 ife->broadaddr = ifr.ifr_broadaddr;
667 strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
668 memset(&ife->netmask, 0, sizeof(struct sockaddr));
669 if (ioctl(skfd, SIOCGIFNETMASK, &ifr) >= 0)
670 ife->netmask = ifr.ifr_netmask;
678 static int do_if_fetch(struct interface *ife)
680 if (if_fetch(ife) < 0) {
683 if (errno == ENODEV) {
684 /* Give better error message for this case. */
685 errmsg = "Device not found";
687 errmsg = strerror(errno);
689 bb_error_msg("%s: error fetching interface information: %s",
696 static const struct hwtype unspec_hwtype = {
700 .print = UNSPEC_print
703 static const struct hwtype loop_hwtype = {
705 .title = "Local Loopback",
706 .type = ARPHRD_LOOPBACK
709 #include <net/if_arp.h>
711 #if (defined(__GLIBC__) && __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 1) || defined(_NEWLIB_VERSION)
712 #include <net/ethernet.h>
714 #include <linux/if_ether.h>
717 /* Display an Ethernet address in readable format. */
718 static char *pr_ether(unsigned char *ptr)
723 buff = xasprintf("%02X:%02X:%02X:%02X:%02X:%02X",
724 (ptr[0] & 0377), (ptr[1] & 0377), (ptr[2] & 0377),
725 (ptr[3] & 0377), (ptr[4] & 0377), (ptr[5] & 0377)
730 static int in_ether(const char *bufp, struct sockaddr *sap);
732 static const struct hwtype ether_hwtype = {
735 .type = ARPHRD_ETHER,
741 static unsigned hexchar2int(char c)
745 c &= ~0x20; /* a -> A */
746 if ((unsigned)(c - 'A') <= 5)
747 return c - ('A' - 10);
751 /* Input an Ethernet address and convert to binary. */
752 static int in_ether(const char *bufp, struct sockaddr *sap)
759 sap->sa_family = ether_hwtype.type;
760 ptr = (unsigned char*) sap->sa_data;
763 while ((*bufp != '\0') && (i < ETH_ALEN)) {
764 val = hexchar2int(*bufp++) * 0x10;
770 if (c == ':' || c == 0)
773 val |= hexchar2int(c);
781 *ptr++ = (unsigned char) val;
784 /* We might get a semicolon here - not required. */
792 #include <net/if_arp.h>
794 static const struct hwtype ppp_hwtype = {
796 .title = "Point-to-Point Protocol",
800 #if ENABLE_FEATURE_IPV6
801 static const struct hwtype sit_hwtype = {
803 .title = "IPv6-in-IPv4",
805 .print = UNSPEC_print,
806 .suppress_null_addr = 1
810 static const struct hwtype *const hwtypes[] = {
815 #if ENABLE_FEATURE_IPV6
822 static const char *const if_port_text[] = {
823 /* Keep in step with <linux/netdevice.h> */
835 /* Check our hardware type table for this type. */
836 const struct hwtype *get_hwtype(const char *name)
838 const struct hwtype *const *hwp;
841 while (*hwp != NULL) {
842 if (!strcmp((*hwp)->name, name))
849 /* Check our hardware type table for this type. */
850 const struct hwtype *get_hwntype(int type)
852 const struct hwtype *const *hwp;
855 while (*hwp != NULL) {
856 if ((*hwp)->type == type)
863 /* return 1 if address is all zeros */
864 static int hw_null_address(const struct hwtype *hw, void *ap)
867 unsigned char *address = (unsigned char *) ap;
869 for (i = 0; i < hw->alen; i++)
875 static const char TRext[] ALIGN1 = "\0\0\0Ki\0Mi\0Gi\0Ti";
877 static void print_bytes_scaled(unsigned long long ull, const char *end)
879 unsigned long long int_part;
881 unsigned int frac_part;
889 if (int_part >= 1024) {
890 frac_part = ((((unsigned int) int_part) & (1024-1)) * 10) / 1024;
892 ext += 3; /* KiB, MiB, GiB, TiB */
897 printf("X bytes:%llu (%llu.%u %sB)%s", ull, int_part, frac_part, ext, end);
900 static void ife_print(struct interface *ptr)
902 const struct aftype *ap;
903 const struct hwtype *hw;
905 int can_compress = 0;
909 char addr6[40], devname[20];
910 struct sockaddr_in6 sap;
911 int plen, scope, dad_status, if_idx;
915 ap = get_afntype(ptr->addr.sa_family);
921 if (hf == ARPHRD_CSLIP || hf == ARPHRD_CSLIP6)
924 hw = get_hwntype(hf);
926 hw = get_hwntype(-1);
928 printf("%-9.9s Link encap:%s ", ptr->name, hw->title);
929 /* For some hardware types (eg Ash, ATM) we don't print the
930 hardware address if it's null. */
931 if (hw->print != NULL && (!(hw_null_address(hw, ptr->hwaddr) &&
932 hw->suppress_null_addr)))
933 printf("HWaddr %s ", hw->print((unsigned char *)ptr->hwaddr));
935 if (ptr->flags & IFF_PORTSEL) {
936 printf("Media:%s", if_port_text[ptr->map.port] /* [0] */);
937 if (ptr->flags & IFF_AUTOMEDIA)
944 printf(" %s addr:%s ", ap->name,
945 ap->sprint(&ptr->addr, 1));
946 if (ptr->flags & IFF_POINTOPOINT) {
947 printf(" P-t-P:%s ", ap->sprint(&ptr->dstaddr, 1));
949 if (ptr->flags & IFF_BROADCAST) {
950 printf(" Bcast:%s ", ap->sprint(&ptr->broadaddr, 1));
952 printf(" Mask:%s\n", ap->sprint(&ptr->netmask, 1));
957 #define IPV6_ADDR_ANY 0x0000U
959 #define IPV6_ADDR_UNICAST 0x0001U
960 #define IPV6_ADDR_MULTICAST 0x0002U
961 #define IPV6_ADDR_ANYCAST 0x0004U
963 #define IPV6_ADDR_LOOPBACK 0x0010U
964 #define IPV6_ADDR_LINKLOCAL 0x0020U
965 #define IPV6_ADDR_SITELOCAL 0x0040U
967 #define IPV6_ADDR_COMPATv4 0x0080U
969 #define IPV6_ADDR_SCOPE_MASK 0x00f0U
971 #define IPV6_ADDR_MAPPED 0x1000U
972 #define IPV6_ADDR_RESERVED 0x2000U /* reserved address space */
974 f = fopen(_PATH_PROCNET_IFINET6, "r");
977 (f, "%4s%4s%4s%4s%4s%4s%4s%4s %08x %02x %02x %02x %20s\n",
978 addr6p[0], addr6p[1], addr6p[2], addr6p[3], addr6p[4],
979 addr6p[5], addr6p[6], addr6p[7], &if_idx, &plen, &scope,
980 &dad_status, devname) != EOF
982 if (!strcmp(devname, ptr->name)) {
983 sprintf(addr6, "%s:%s:%s:%s:%s:%s:%s:%s",
984 addr6p[0], addr6p[1], addr6p[2], addr6p[3],
985 addr6p[4], addr6p[5], addr6p[6], addr6p[7]);
986 inet_pton(AF_INET6, addr6,
987 (struct sockaddr *) &sap.sin6_addr);
988 sap.sin6_family = AF_INET6;
989 printf(" inet6 addr: %s/%d",
990 INET6_sprint((struct sockaddr *) &sap, 1),
993 switch (scope & IPV6_ADDR_SCOPE_MASK) {
997 case IPV6_ADDR_LINKLOCAL:
1000 case IPV6_ADDR_SITELOCAL:
1003 case IPV6_ADDR_COMPATv4:
1006 case IPV6_ADDR_LOOPBACK:
1019 /* DONT FORGET TO ADD THE FLAGS IN ife_print_short, too */
1021 if (ptr->flags == 0) {
1022 printf("[NO FLAGS] ");
1024 static const char ife_print_flags_strs[] ALIGN1 =
1042 static const unsigned short ife_print_flags_mask[] ALIGN2 = {
1060 const unsigned short *mask = ife_print_flags_mask;
1061 const char *str = ife_print_flags_strs;
1063 if (ptr->flags & *mask) {
1067 str += strlen(str) + 1;
1071 /* DONT FORGET TO ADD THE FLAGS IN ife_print_short */
1072 printf(" MTU:%d Metric:%d", ptr->mtu, ptr->metric ? ptr->metric : 1);
1073 #ifdef SIOCSKEEPALIVE
1074 if (ptr->outfill || ptr->keepalive)
1075 printf(" Outfill:%d Keepalive:%d", ptr->outfill, ptr->keepalive);
1079 /* If needed, display the interface statistics. */
1081 if (ptr->statistics_valid) {
1082 /* XXX: statistics are currently only printed for the primary address,
1083 * not for the aliases, although strictly speaking they're shared
1088 printf("RX packets:%llu errors:%lu dropped:%lu overruns:%lu frame:%lu\n",
1089 ptr->stats.rx_packets, ptr->stats.rx_errors,
1090 ptr->stats.rx_dropped, ptr->stats.rx_fifo_errors,
1091 ptr->stats.rx_frame_errors);
1093 printf(" compressed:%lu\n",
1094 ptr->stats.rx_compressed);
1096 printf("TX packets:%llu errors:%lu dropped:%lu overruns:%lu carrier:%lu\n",
1097 ptr->stats.tx_packets, ptr->stats.tx_errors,
1098 ptr->stats.tx_dropped, ptr->stats.tx_fifo_errors,
1099 ptr->stats.tx_carrier_errors);
1100 printf(" collisions:%lu ", ptr->stats.collisions);
1102 printf("compressed:%lu ", ptr->stats.tx_compressed);
1103 if (ptr->tx_queue_len != -1)
1104 printf("txqueuelen:%d ", ptr->tx_queue_len);
1106 print_bytes_scaled(ptr->stats.rx_bytes, " T");
1107 print_bytes_scaled(ptr->stats.tx_bytes, "\n");
1111 if ((ptr->map.irq || ptr->map.mem_start || ptr->map.dma ||
1112 ptr->map.base_addr)) {
1115 printf("Interrupt:%d ", ptr->map.irq);
1116 if (ptr->map.base_addr >= 0x100) /* Only print devices using it for
1118 printf("Base address:0x%lx ",
1119 (unsigned long) ptr->map.base_addr);
1120 if (ptr->map.mem_start) {
1121 printf("Memory:%lx-%lx ", ptr->map.mem_start,
1125 printf("DMA chan:%x ", ptr->map.dma);
1132 static int do_if_print(struct interface *ife) /*, int *opt_a)*/
1136 res = do_if_fetch(ife);
1138 if ((ife->flags & IFF_UP) || interface_opt_a)
1144 static struct interface *lookup_interface(char *name)
1146 struct interface *ife = NULL;
1148 if (if_readlist_proc(name) < 0)
1150 ife = add_interface(name);
1155 static int for_all_interfaces(int (*doit) (struct interface *, void *),
1158 struct interface *ife;
1160 if (!int_list && (if_readlist() < 0))
1162 for (ife = int_list; ife; ife = ife->next) {
1163 int err = doit(ife, cookie);
1172 /* for ipv4 add/del modes */
1173 static int if_print(char *ifname)
1175 struct interface *ife;
1179 /*res = for_all_interfaces(do_if_print, &interface_opt_a);*/
1180 if (!int_list && (if_readlist() < 0))
1182 for (ife = int_list; ife; ife = ife->next) {
1183 int err = do_if_print(ife); /*, &interface_opt_a);*/
1189 ife = lookup_interface(ifname);
1190 res = do_if_fetch(ife);
1196 int display_interfaces(char *ifname)
1200 status = if_print(ifname);
1202 return (status < 0); /* status < 0 == 1 -- error */