2 * stolen from net-tools-1.59 and stripped down for busybox by
3 * Erik Andersen <andersen@codepoet.org>
5 * Heavily modified by Manuel Novoa III Mar 12, 2001
7 * Added print_bytes_scaled function to reduce code size.
8 * Added some (potentially) missing defines.
9 * Improved display support for -a and for a named interface.
11 * -----------------------------------------------------------
13 * ifconfig This file contains an implementation of the command
14 * that either displays or sets the characteristics of
15 * one or more of the system's networking interfaces.
17 * Version: $Id: interface.c,v 1.25 2004/08/26 21:45:21 andersen Exp $
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 "inet_common.h"
42 #include <sys/ioctl.h>
43 #include <sys/types.h>
45 #include <net/if_arp.h>
48 #ifdef CONFIG_FEATURE_IPV6
49 # define HAVE_AFINET6 1
54 #define _PATH_PROCNET_DEV "/proc/net/dev"
55 #define _PATH_PROCNET_IFINET6 "/proc/net/if_inet6"
61 * This is in linux/include/net/ipv6.h.
65 struct in6_addr ifr6_addr;
66 uint32_t ifr6_prefixlen;
67 unsigned int ifr6_ifindex;
72 #endif /* HAVE_AFINET6 */
74 /* Defines for glibc2.0 users. */
76 #define SIOCSIFTXQLEN 0x8943
77 #define SIOCGIFTXQLEN 0x8942
80 /* ifr_qlen is ifru_ivalue, but it isn't present in 2.0 kernel headers */
82 #define ifr_qlen ifr_ifru.ifru_mtu
85 #ifndef HAVE_TXQUEUELEN
86 #define HAVE_TXQUEUELEN 1
90 #define IFF_DYNAMIC 0x8000 /* dialup device with changing addresses */
93 /* This structure defines protocol families and their handlers. */
99 char *(*print) (unsigned char *);
100 char *(*sprint) (struct sockaddr *, int numeric);
101 int (*input) (int type, char *bufp, struct sockaddr *);
102 void (*herror) (char *text);
103 int (*rprint) (int options);
104 int (*rinput) (int typ, int ext, char **argv);
107 int (*getmask) (char *src, struct sockaddr * mask, char *name);
113 /* Display an Internet socket address. */
114 static char *INET_sprint(struct sockaddr *sap, int numeric)
116 static char buff[128];
118 if (sap->sa_family == 0xFFFF || sap->sa_family == 0)
119 return safe_strncpy(buff, "[NONE SET]", sizeof(buff));
121 if (INET_rresolve(buff, sizeof(buff), (struct sockaddr_in *) sap,
122 numeric, 0xffffff00) != 0)
128 static struct aftype inet_aftype = {
129 "inet", "DARPA Internet", AF_INET, sizeof(unsigned long),
130 NULL /* UNUSED INET_print */ , INET_sprint,
131 NULL /* UNUSED INET_input */ , NULL /* UNUSED INET_reserror */ ,
132 NULL /*INET_rprint */ , NULL /*INET_rinput */ ,
133 NULL /* UNUSED INET_getnetmask */ ,
140 /* Display an Internet socket address. */
141 /* dirty! struct sockaddr usually doesn't suffer for inet6 addresses, fst. */
142 static char *INET6_sprint(struct sockaddr *sap, int numeric)
144 static char buff[128];
146 if (sap->sa_family == 0xFFFF || sap->sa_family == 0)
147 return safe_strncpy(buff, "[NONE SET]", sizeof(buff));
149 (buff, sizeof(buff), (struct sockaddr_in6 *) sap, numeric) != 0)
150 return safe_strncpy(buff, "[UNKNOWN]", sizeof(buff));
154 static struct aftype inet6_aftype = {
155 "inet6", "IPv6", AF_INET6, sizeof(struct in6_addr),
156 NULL /* UNUSED INET6_print */ , INET6_sprint,
157 NULL /* UNUSED INET6_input */ , NULL /* UNUSED INET6_reserror */ ,
158 NULL /*INET6_rprint */ , NULL /*INET6_rinput */ ,
159 NULL /* UNUSED INET6_getnetmask */ ,
164 #endif /* HAVE_AFINET6 */
166 /* Display an UNSPEC address. */
167 static char *UNSPEC_print(unsigned char *ptr)
169 static char buff[sizeof(struct sockaddr) * 3 + 1];
174 for (i = 0; i < sizeof(struct sockaddr); i++) {
175 /* careful -- not every libc's sprintf returns # bytes written */
176 sprintf(pos, "%02X-", (*ptr++ & 0377));
179 /* Erase trailing "-". Works as long as sizeof(struct sockaddr) != 0 */
184 /* Display an UNSPEC socket address. */
185 static char *UNSPEC_sprint(struct sockaddr *sap, int numeric)
189 if (sap->sa_family == 0xFFFF || sap->sa_family == 0)
190 return safe_strncpy(buf, "[NONE SET]", sizeof(buf));
191 return (UNSPEC_print((unsigned char *)sap->sa_data));
194 static struct aftype unspec_aftype = {
195 "unspec", "UNSPEC", AF_UNSPEC, 0,
196 UNSPEC_print, UNSPEC_sprint, NULL, NULL,
200 static struct aftype * const aftypes[] = {
209 /* Check our protocol family table for this family. */
210 static struct aftype *get_afntype(int af)
212 struct aftype * const *afp;
215 while (*afp != NULL) {
216 if ((*afp)->af == af)
223 /* Check our protocol family table for this family and return its socket */
224 static int get_socket_for_af(int af)
226 struct aftype * const *afp;
229 while (*afp != NULL) {
230 if ((*afp)->af == af)
237 struct user_net_device_stats {
238 unsigned long long rx_packets; /* total packets received */
239 unsigned long long tx_packets; /* total packets transmitted */
240 unsigned long long rx_bytes; /* total bytes received */
241 unsigned long long tx_bytes; /* total bytes transmitted */
242 unsigned long rx_errors; /* bad packets received */
243 unsigned long tx_errors; /* packet transmit problems */
244 unsigned long rx_dropped; /* no space in linux buffers */
245 unsigned long tx_dropped; /* no space available in linux */
246 unsigned long rx_multicast; /* multicast packets received */
247 unsigned long rx_compressed;
248 unsigned long tx_compressed;
249 unsigned long collisions;
251 /* detailed rx_errors: */
252 unsigned long rx_length_errors;
253 unsigned long rx_over_errors; /* receiver ring buff overflow */
254 unsigned long rx_crc_errors; /* recved pkt with crc error */
255 unsigned long rx_frame_errors; /* recv'd frame alignment error */
256 unsigned long rx_fifo_errors; /* recv'r fifo overrun */
257 unsigned long rx_missed_errors; /* receiver missed packet */
258 /* detailed tx_errors */
259 unsigned long tx_aborted_errors;
260 unsigned long tx_carrier_errors;
261 unsigned long tx_fifo_errors;
262 unsigned long tx_heartbeat_errors;
263 unsigned long tx_window_errors;
267 struct interface *next, *prev;
268 char name[IFNAMSIZ]; /* interface name */
269 short type; /* if type */
270 short flags; /* various flags */
271 int metric; /* routing metric */
272 int mtu; /* MTU value */
273 int tx_queue_len; /* transmit queue length */
274 struct ifmap map; /* hardware setup */
275 struct sockaddr addr; /* IP address */
276 struct sockaddr dstaddr; /* P-P IP address */
277 struct sockaddr broadaddr; /* IP broadcast address */
278 struct sockaddr netmask; /* IP network mask */
280 char hwaddr[32]; /* HW address */
281 int statistics_valid;
282 struct user_net_device_stats stats; /* statistics */
283 int keepalive; /* keepalive value for SLIP */
284 int outfill; /* outfill value for SLIP */
288 int interface_opt_a = 0; /* show all interfaces */
290 static struct interface *int_list, *int_last;
291 static int skfd = -1; /* generic raw socket desc. */
294 static int sockets_open(int family)
296 struct aftype * const *aft;
298 static int force = -1;
302 if (get_linux_version_code() < KERNEL_VERSION(2,1,0))
304 if (access("/proc/net", R_OK))
307 for (aft = aftypes; *aft; aft++) {
308 struct aftype *af = *aft;
309 int type = SOCK_DGRAM;
311 if (af->af == AF_UNSPEC)
313 if (family && family != af->af)
319 /* Check some /proc file first to not stress kmod */
320 if (!family && !force && af->flag_file) {
321 if (access(af->flag_file, R_OK))
324 af->fd = socket(af->af, type, 0);
329 bb_error_msg("No usable address families found.");
334 #ifdef CONFIG_FEATURE_CLEAN_UP
335 static void sockets_close(void)
337 struct aftype * const *aft;
338 for (aft = aftypes; *aft != NULL; aft++) {
339 struct aftype *af = *aft;
348 /* like strcmp(), but knows about numbers */
349 static int nstrcmp(const char *a, const char *b)
351 const char *a_ptr = a;
352 const char *b_ptr = b;
358 if (!isdigit(*a) && isdigit(*(a+1))) {
366 if (isdigit(*a) && isdigit(*b)) {
367 return atoi(a_ptr) > atoi(b_ptr) ? 1 : -1;
372 static struct interface *add_interface(char *name)
374 struct interface *ife, **nextp, *new;
376 for (ife = int_last; ife; ife = ife->prev) {
377 int n = nstrcmp(ife->name, name);
385 new = xzalloc(sizeof(*new));
386 safe_strncpy(new->name, name, IFNAMSIZ);
387 nextp = ife ? &ife->next : &int_list;
391 new->next->prev = new;
399 static int if_readconf(void)
407 /* SIOCGIFCONF currently seems to only work properly on AF_INET sockets
409 skfd2 = get_socket_for_af(AF_INET);
411 bb_perror_msg(("warning: no inet socket available"));
412 /* Try to soldier on with whatever socket we can get hold of. */
413 skfd2 = sockets_open(0);
420 ifc.ifc_len = sizeof(struct ifreq) * numreqs;
421 ifc.ifc_buf = xrealloc(ifc.ifc_buf, ifc.ifc_len);
423 if (ioctl(skfd2, SIOCGIFCONF, &ifc) < 0) {
424 perror("SIOCGIFCONF");
427 if (ifc.ifc_len == sizeof(struct ifreq) * numreqs) {
428 /* assume it overflowed and try again */
436 for (n = 0; n < ifc.ifc_len; n += sizeof(struct ifreq)) {
437 add_interface(ifr->ifr_name);
447 static char *get_name(char *name, char *p)
449 /* Extract <name>[:<alias>] from nul-terminated p where p matches
450 <name>[:<alias>]: after leading whitespace.
451 If match is not made, set name empty and return unchanged p */
452 int namestart=0, nameend=0, aliasend;
453 while (isspace(p[namestart]))
456 while (p[nameend] && p[nameend]!=':' && !isspace(p[nameend]))
458 if (p[nameend]==':') {
460 while (p[aliasend] && isdigit(p[aliasend]))
462 if (p[aliasend]==':') {
465 if ((nameend-namestart)<IFNAMSIZ) {
466 memcpy(name,&p[namestart],nameend-namestart);
467 name[nameend-namestart]='\0';
470 /* Interface name too large */
474 /* first ':' not found - return empty */
480 /* If scanf supports size qualifiers for %n conversions, then we can
481 * use a modified fmt that simply stores the position in the fields
482 * having no associated fields in the proc string. Of course, we need
483 * to zero them again when we're done. But that is smaller than the
484 * old approach of multiple scanf occurrences with large numbers of
487 /* static const char * const ss_fmt[] = { */
488 /* "%lln%llu%lu%lu%lu%lu%ln%ln%lln%llu%lu%lu%lu%lu%lu", */
489 /* "%llu%llu%lu%lu%lu%lu%ln%ln%llu%llu%lu%lu%lu%lu%lu", */
490 /* "%llu%llu%lu%lu%lu%lu%lu%lu%llu%llu%lu%lu%lu%lu%lu%lu" */
493 /* Lie about the size of the int pointed to for %n. */
494 #if INT_MAX == LONG_MAX
495 static const char * const ss_fmt[] = {
496 "%n%llu%u%u%u%u%n%n%n%llu%u%u%u%u%u",
497 "%llu%llu%u%u%u%u%n%n%llu%llu%u%u%u%u%u",
498 "%llu%llu%u%u%u%u%u%u%llu%llu%u%u%u%u%u%u"
501 static const char * const ss_fmt[] = {
502 "%n%llu%lu%lu%lu%lu%n%n%n%llu%lu%lu%lu%lu%lu",
503 "%llu%llu%lu%lu%lu%lu%n%n%llu%llu%lu%lu%lu%lu%lu",
504 "%llu%llu%lu%lu%lu%lu%lu%lu%llu%llu%lu%lu%lu%lu%lu%lu"
509 static void get_dev_fields(char *bp, struct interface *ife, int procnetdev_vsn)
511 memset(&ife->stats, 0, sizeof(struct user_net_device_stats));
513 sscanf(bp, ss_fmt[procnetdev_vsn],
514 &ife->stats.rx_bytes, /* missing for 0 */
515 &ife->stats.rx_packets,
516 &ife->stats.rx_errors,
517 &ife->stats.rx_dropped,
518 &ife->stats.rx_fifo_errors,
519 &ife->stats.rx_frame_errors,
520 &ife->stats.rx_compressed, /* missing for <= 1 */
521 &ife->stats.rx_multicast, /* missing for <= 1 */
522 &ife->stats.tx_bytes, /* missing for 0 */
523 &ife->stats.tx_packets,
524 &ife->stats.tx_errors,
525 &ife->stats.tx_dropped,
526 &ife->stats.tx_fifo_errors,
527 &ife->stats.collisions,
528 &ife->stats.tx_carrier_errors,
529 &ife->stats.tx_compressed /* missing for <= 1 */
532 if (procnetdev_vsn <= 1) {
533 if (procnetdev_vsn == 0) {
534 ife->stats.rx_bytes = 0;
535 ife->stats.tx_bytes = 0;
537 ife->stats.rx_multicast = 0;
538 ife->stats.rx_compressed = 0;
539 ife->stats.tx_compressed = 0;
543 static inline int procnetdev_version(char *buf)
545 if (strstr(buf, "compressed"))
547 if (strstr(buf, "bytes"))
552 static int if_readlist_proc(char *target)
554 static int proc_read;
557 struct interface *ife;
558 int err, procnetdev_vsn;
565 fh = fopen(_PATH_PROCNET_DEV, "r");
567 bb_perror_msg("Warning: cannot open %s. Limited output.", _PATH_PROCNET_DEV);
568 return if_readconf();
570 fgets(buf, sizeof buf, fh); /* eat line */
571 fgets(buf, sizeof buf, fh);
573 procnetdev_vsn = procnetdev_version(buf);
576 while (fgets(buf, sizeof buf, fh)) {
579 s = get_name(name, buf);
580 ife = add_interface(name);
581 get_dev_fields(s, ife, procnetdev_vsn);
582 ife->statistics_valid = 1;
583 if (target && !strcmp(target, name))
587 perror(_PATH_PROCNET_DEV);
595 static int if_readlist(void)
597 int err = if_readlist_proc(NULL);
604 static int for_all_interfaces(int (*doit) (struct interface *, void *),
607 struct interface *ife;
609 if (!int_list && (if_readlist() < 0))
611 for (ife = int_list; ife; ife = ife->next) {
612 int err = doit(ife, cookie);
620 /* Fetch the interface configuration from the kernel. */
621 static int if_fetch(struct interface *ife)
625 char *ifname = ife->name;
627 strcpy(ifr.ifr_name, ifname);
628 if (ioctl(skfd, SIOCGIFFLAGS, &ifr) < 0)
630 ife->flags = ifr.ifr_flags;
632 strcpy(ifr.ifr_name, ifname);
633 if (ioctl(skfd, SIOCGIFHWADDR, &ifr) < 0)
634 memset(ife->hwaddr, 0, 32);
636 memcpy(ife->hwaddr, ifr.ifr_hwaddr.sa_data, 8);
638 ife->type = ifr.ifr_hwaddr.sa_family;
640 strcpy(ifr.ifr_name, ifname);
641 if (ioctl(skfd, SIOCGIFMETRIC, &ifr) < 0)
644 ife->metric = ifr.ifr_metric;
646 strcpy(ifr.ifr_name, ifname);
647 if (ioctl(skfd, SIOCGIFMTU, &ifr) < 0)
650 ife->mtu = ifr.ifr_mtu;
653 strcpy(ifr.ifr_name, ifname);
654 if (ioctl(skfd, SIOCGIFMAP, &ifr) == 0)
655 ife->map = ifr.ifr_map;
658 memset(&ife->map, 0, sizeof(struct ifmap));
660 #ifdef HAVE_TXQUEUELEN
661 strcpy(ifr.ifr_name, ifname);
662 if (ioctl(skfd, SIOCGIFTXQLEN, &ifr) < 0)
663 ife->tx_queue_len = -1; /* unknown value */
665 ife->tx_queue_len = ifr.ifr_qlen;
667 ife->tx_queue_len = -1; /* unknown value */
671 fd = get_socket_for_af(AF_INET);
673 strcpy(ifr.ifr_name, ifname);
674 ifr.ifr_addr.sa_family = AF_INET;
675 if (ioctl(fd, SIOCGIFADDR, &ifr) == 0) {
677 ife->addr = ifr.ifr_addr;
678 strcpy(ifr.ifr_name, ifname);
679 if (ioctl(fd, SIOCGIFDSTADDR, &ifr) < 0)
680 memset(&ife->dstaddr, 0, sizeof(struct sockaddr));
682 ife->dstaddr = ifr.ifr_dstaddr;
684 strcpy(ifr.ifr_name, ifname);
685 if (ioctl(fd, SIOCGIFBRDADDR, &ifr) < 0)
686 memset(&ife->broadaddr, 0, sizeof(struct sockaddr));
688 ife->broadaddr = ifr.ifr_broadaddr;
690 strcpy(ifr.ifr_name, ifname);
691 if (ioctl(fd, SIOCGIFNETMASK, &ifr) < 0)
692 memset(&ife->netmask, 0, sizeof(struct sockaddr));
694 ife->netmask = ifr.ifr_netmask;
696 memset(&ife->addr, 0, sizeof(struct sockaddr));
703 static int do_if_fetch(struct interface *ife)
705 if (if_fetch(ife) < 0) {
708 if (errno == ENODEV) {
709 /* Give better error message for this case. */
710 errmsg = "Device not found";
712 errmsg = strerror(errno);
714 bb_error_msg("%s: error fetching interface information: %s",
721 /* This structure defines hardware protocols and their handlers. */
723 const char * const name;
727 char *(*print) (unsigned char *);
728 int (*input) (char *, struct sockaddr *);
729 int (*activate) (int fd);
730 int suppress_null_addr;
733 static const struct hwtype unspec_hwtype = {
734 "unspec", "UNSPEC", -1, 0,
735 UNSPEC_print, NULL, NULL
738 static const struct hwtype loop_hwtype = {
739 "loop", "Local Loopback", ARPHRD_LOOPBACK, 0,
743 #include <net/if_arp.h>
745 #if (__GLIBC__ >=2 && __GLIBC_MINOR >= 1) || defined(_NEWLIB_VERSION)
746 #include <net/ethernet.h>
748 #include <linux/if_ether.h>
751 /* Display an Ethernet address in readable format. */
752 static char *pr_ether(unsigned char *ptr)
754 static char buff[64];
756 snprintf(buff, sizeof(buff), "%02X:%02X:%02X:%02X:%02X:%02X",
757 (ptr[0] & 0377), (ptr[1] & 0377), (ptr[2] & 0377),
758 (ptr[3] & 0377), (ptr[4] & 0377), (ptr[5] & 0377)
763 static const struct hwtype ether_hwtype = {
764 "ether", "Ethernet", ARPHRD_ETHER, ETH_ALEN,
765 pr_ether, NULL /* UNUSED in_ether */ , NULL
768 #include <net/if_arp.h>
770 static const struct hwtype ppp_hwtype = {
771 "ppp", "Point-Point Protocol", ARPHRD_PPP, 0,
772 NULL, NULL, NULL /* UNUSED do_ppp */ , 0
775 static const struct hwtype * const hwtypes[] = {
784 static const char * const if_port_text[] = {
785 /* Keep in step with <linux/netdevice.h> */
797 /* Check our hardware type table for this type. */
798 static const struct hwtype *get_hwntype(int type)
800 const struct hwtype * const *hwp;
803 while (*hwp != NULL) {
804 if ((*hwp)->type == type)
811 /* return 1 if address is all zeros */
812 static int hw_null_address(const struct hwtype *hw, void *ap)
815 unsigned char *address = (unsigned char *) ap;
817 for (i = 0; i < hw->alen; i++)
823 static const char TRext[] = "\0\0\0Ki\0Mi\0Gi\0Ti";
825 static void print_bytes_scaled(unsigned long long ull, const char *end)
827 unsigned long long int_part;
829 unsigned int frac_part;
837 if (int_part >= 1024) {
838 frac_part = ((((unsigned int) int_part) & (1024-1)) * 10) / 1024;
840 ext += 3; /* KiB, MiB, GiB, TiB */
845 printf("X bytes:%llu (%llu.%u %sB)%s", ull, int_part, frac_part, ext, end);
848 static const char * const ife_print_flags_strs[] = {
867 static const unsigned short ife_print_flags_mask[] = {
887 static void ife_print(struct interface *ptr)
890 const struct hwtype *hw;
892 int can_compress = 0;
896 char addr6[40], devname[20];
897 struct sockaddr_in6 sap;
898 int plen, scope, dad_status, if_idx;
902 ap = get_afntype(ptr->addr.sa_family);
908 if (hf == ARPHRD_CSLIP || hf == ARPHRD_CSLIP6)
911 hw = get_hwntype(hf);
913 hw = get_hwntype(-1);
915 printf("%-9.9s Link encap:%s ", ptr->name, hw->title);
916 /* For some hardware types (eg Ash, ATM) we don't print the
917 hardware address if it's null. */
918 if (hw->print != NULL && (!(hw_null_address(hw, ptr->hwaddr) &&
919 hw->suppress_null_addr)))
920 printf("HWaddr %s ", hw->print((unsigned char *)ptr->hwaddr));
922 if (ptr->flags & IFF_PORTSEL) {
923 printf("Media:%s", if_port_text[ptr->map.port] /* [0] */);
924 if (ptr->flags & IFF_AUTOMEDIA)
931 printf(" %s addr:%s ", ap->name,
932 ap->sprint(&ptr->addr, 1));
933 if (ptr->flags & IFF_POINTOPOINT) {
934 printf(" P-t-P:%s ", ap->sprint(&ptr->dstaddr, 1));
936 if (ptr->flags & IFF_BROADCAST) {
937 printf(" Bcast:%s ", ap->sprint(&ptr->broadaddr, 1));
939 printf(" Mask:%s\n", ap->sprint(&ptr->netmask, 1));
944 #define IPV6_ADDR_ANY 0x0000U
946 #define IPV6_ADDR_UNICAST 0x0001U
947 #define IPV6_ADDR_MULTICAST 0x0002U
948 #define IPV6_ADDR_ANYCAST 0x0004U
950 #define IPV6_ADDR_LOOPBACK 0x0010U
951 #define IPV6_ADDR_LINKLOCAL 0x0020U
952 #define IPV6_ADDR_SITELOCAL 0x0040U
954 #define IPV6_ADDR_COMPATv4 0x0080U
956 #define IPV6_ADDR_SCOPE_MASK 0x00f0U
958 #define IPV6_ADDR_MAPPED 0x1000U
959 #define IPV6_ADDR_RESERVED 0x2000U /* reserved address space */
961 if ((f = fopen(_PATH_PROCNET_IFINET6, "r")) != NULL) {
963 (f, "%4s%4s%4s%4s%4s%4s%4s%4s %02x %02x %02x %02x %20s\n",
964 addr6p[0], addr6p[1], addr6p[2], addr6p[3], addr6p[4],
965 addr6p[5], addr6p[6], addr6p[7], &if_idx, &plen, &scope,
966 &dad_status, devname) != EOF) {
967 if (!strcmp(devname, ptr->name)) {
968 sprintf(addr6, "%s:%s:%s:%s:%s:%s:%s:%s",
969 addr6p[0], addr6p[1], addr6p[2], addr6p[3],
970 addr6p[4], addr6p[5], addr6p[6], addr6p[7]);
971 inet_pton(AF_INET6, addr6,
972 (struct sockaddr *) &sap.sin6_addr);
973 sap.sin6_family = AF_INET6;
974 printf(" inet6 addr: %s/%d",
975 inet6_aftype.sprint((struct sockaddr *) &sap, 1),
978 switch (scope & IPV6_ADDR_SCOPE_MASK) {
982 case IPV6_ADDR_LINKLOCAL:
985 case IPV6_ADDR_SITELOCAL:
988 case IPV6_ADDR_COMPATv4:
991 case IPV6_ADDR_LOOPBACK:
1005 /* DONT FORGET TO ADD THE FLAGS IN ife_print_short, too */
1007 if (ptr->flags == 0) {
1008 printf("[NO FLAGS] ");
1012 if (ptr->flags & ife_print_flags_mask[i]) {
1013 printf(ife_print_flags_strs[i]);
1015 } while (ife_print_flags_mask[++i]);
1018 /* DONT FORGET TO ADD THE FLAGS IN ife_print_short */
1019 printf(" MTU:%d Metric:%d", ptr->mtu, ptr->metric ? ptr->metric : 1);
1020 #ifdef SIOCSKEEPALIVE
1021 if (ptr->outfill || ptr->keepalive)
1022 printf(" Outfill:%d Keepalive:%d", ptr->outfill, ptr->keepalive);
1026 /* If needed, display the interface statistics. */
1028 if (ptr->statistics_valid) {
1029 /* XXX: statistics are currently only printed for the primary address,
1030 * not for the aliases, although strictly speaking they're shared
1035 printf("RX packets:%llu errors:%lu dropped:%lu overruns:%lu frame:%lu\n",
1036 ptr->stats.rx_packets, ptr->stats.rx_errors,
1037 ptr->stats.rx_dropped, ptr->stats.rx_fifo_errors,
1038 ptr->stats.rx_frame_errors);
1040 printf(" compressed:%lu\n",
1041 ptr->stats.rx_compressed);
1043 printf("TX packets:%llu errors:%lu dropped:%lu overruns:%lu carrier:%lu\n",
1044 ptr->stats.tx_packets, ptr->stats.tx_errors,
1045 ptr->stats.tx_dropped, ptr->stats.tx_fifo_errors,
1046 ptr->stats.tx_carrier_errors);
1047 printf(" collisions:%lu ", ptr->stats.collisions);
1049 printf("compressed:%lu ", ptr->stats.tx_compressed);
1050 if (ptr->tx_queue_len != -1)
1051 printf("txqueuelen:%d ", ptr->tx_queue_len);
1053 print_bytes_scaled(ptr->stats.rx_bytes, " T");
1054 print_bytes_scaled(ptr->stats.tx_bytes, "\n");
1058 if ((ptr->map.irq || ptr->map.mem_start || ptr->map.dma ||
1059 ptr->map.base_addr)) {
1062 printf("Interrupt:%d ", ptr->map.irq);
1063 if (ptr->map.base_addr >= 0x100) /* Only print devices using it for
1065 printf("Base address:0x%lx ",
1066 (unsigned long) ptr->map.base_addr);
1067 if (ptr->map.mem_start) {
1068 printf("Memory:%lx-%lx ", ptr->map.mem_start,
1072 printf("DMA chan:%x ", ptr->map.dma);
1079 static int do_if_print(struct interface *ife, void *cookie)
1081 int *opt_a = (int *) cookie;
1084 res = do_if_fetch(ife);
1086 if ((ife->flags & IFF_UP) || *opt_a)
1092 static struct interface *lookup_interface(char *name)
1094 struct interface *ife = NULL;
1096 if (if_readlist_proc(name) < 0)
1098 ife = add_interface(name);
1102 /* for ipv4 add/del modes */
1103 static int if_print(char *ifname)
1108 res = for_all_interfaces(do_if_print, &interface_opt_a);
1110 struct interface *ife;
1112 ife = lookup_interface(ifname);
1113 res = do_if_fetch(ife);
1120 int display_interfaces(char *ifname);
1121 int display_interfaces(char *ifname)
1125 /* Create a channel to the NET kernel. */
1126 if ((skfd = sockets_open(0)) < 0) {
1127 bb_perror_msg_and_die("socket");
1130 /* Do we have to show the current setup? */
1131 status = if_print(ifname);
1132 #ifdef CONFIG_FEATURE_CLEAN_UP