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.
18 * Version: $Id: interface.c,v 1.25 2004/08/26 21:45:21 andersen Exp $
20 * Author: Fred N. van Kempen, <waltje@uwalt.nl.mugnet.org>
21 * and others. Copyright 1993 MicroWalt Corporation
23 * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
25 * Patched to support 'add' and 'del' keywords for INET(4) addresses
26 * by Mrs. Brisby <mrs.brisby@nimh.org>
28 * {1.34} - 19980630 - Arnaldo Carvalho de Melo <acme@conectiva.com.br>
29 * - gettext instead of catgets for i18n
30 * 10/1998 - Andi Kleen. Use interface list primitives.
31 * 20001008 - Bernd Eckenfels, Patch from RH for setting mtu
32 * (default AF was wrong)
35 #include "inet_common.h"
43 #include <sys/ioctl.h>
44 #include <sys/types.h>
46 #include <net/if_arp.h>
49 #ifdef CONFIG_FEATURE_IPV6
50 # define HAVE_AFINET6 1
55 #define _PATH_PROCNET_DEV "/proc/net/dev"
56 #define _PATH_PROCNET_IFINET6 "/proc/net/if_inet6"
62 * This is in linux/include/net/ipv6.h.
66 struct in6_addr ifr6_addr;
67 uint32_t ifr6_prefixlen;
68 unsigned int ifr6_ifindex;
73 #endif /* HAVE_AFINET6 */
75 /* Defines for glibc2.0 users. */
77 #define SIOCSIFTXQLEN 0x8943
78 #define SIOCGIFTXQLEN 0x8942
81 /* ifr_qlen is ifru_ivalue, but it isn't present in 2.0 kernel headers */
83 #define ifr_qlen ifr_ifru.ifru_mtu
86 #ifndef HAVE_TXQUEUELEN
87 #define HAVE_TXQUEUELEN 1
91 #define IFF_DYNAMIC 0x8000 /* dialup device with changing addresses */
94 /* Display an Internet socket address. */
95 static char *INET_sprint(struct sockaddr *sap, int numeric)
97 static char buff[128];
99 if (sap->sa_family == 0xFFFF || sap->sa_family == 0)
100 return safe_strncpy(buff, "[NONE SET]", sizeof(buff));
102 if (INET_rresolve(buff, sizeof(buff), (struct sockaddr_in *) sap,
103 numeric, 0xffffff00) != 0)
109 static int INET_getsock(char *bufp, struct sockaddr *sap)
111 char *sp = bufp, *bp;
114 struct sockaddr_in *sock_in;
116 sock_in = (struct sockaddr_in *) sap;
117 sock_in->sin_family = AF_INET;
118 sock_in->sin_port = 0;
122 for (i = 0; i < sizeof(sock_in->sin_addr.s_addr); i++) {
125 if ((unsigned)(*sp - 'A') <= 5)
126 bp[i] |= (int) (*sp - ('A' - 10));
127 else if (isdigit(*sp))
128 bp[i] |= (int) (*sp - '0');
136 if ((unsigned)(*sp - 'A') <= 5)
137 bp[i] |= (int) (*sp - ('A' - 10));
138 else if (isdigit(*sp))
139 bp[i] |= (int) (*sp - '0');
145 sock_in->sin_addr.s_addr = htonl(val);
150 static int INET_input(int type, char *bufp, struct sockaddr *sap)
154 return (INET_getsock(bufp, sap));
156 return (INET_resolve(bufp, (struct sockaddr_in *) sap, 1));
158 return (INET_resolve(bufp, (struct sockaddr_in *) sap, 0));
162 static struct aftype inet_aftype = {
164 .title = "DARPA Internet",
167 .sprint = INET_sprint,
174 /* Display an Internet socket address. */
175 /* dirty! struct sockaddr usually doesn't suffer for inet6 addresses, fst. */
176 static char *INET6_sprint(struct sockaddr *sap, int numeric)
178 static char buff[128];
180 if (sap->sa_family == 0xFFFF || sap->sa_family == 0)
181 return safe_strncpy(buff, "[NONE SET]", sizeof(buff));
183 (buff, sizeof(buff), (struct sockaddr_in6 *) sap, numeric) != 0)
184 return safe_strncpy(buff, "[UNKNOWN]", sizeof(buff));
188 static int INET6_getsock(char *bufp, struct sockaddr *sap)
190 struct sockaddr_in6 *sin6;
192 sin6 = (struct sockaddr_in6 *) sap;
193 sin6->sin6_family = AF_INET6;
196 if (inet_pton(AF_INET6, bufp, sin6->sin6_addr.s6_addr) <= 0)
202 static int INET6_input(int type, char *bufp, struct sockaddr *sap)
206 return (INET6_getsock(bufp, sap));
208 return (INET6_resolve(bufp, (struct sockaddr_in6 *) sap));
212 static struct aftype inet6_aftype = {
216 .alen = sizeof(struct in6_addr),
217 .sprint = INET6_sprint,
218 .input = INET6_input,
222 #endif /* HAVE_AFINET6 */
224 /* Display an UNSPEC address. */
225 static char *UNSPEC_print(unsigned char *ptr)
227 static char buff[sizeof(struct sockaddr) * 3 + 1];
232 for (i = 0; i < sizeof(struct sockaddr); i++) {
233 /* careful -- not every libc's sprintf returns # bytes written */
234 sprintf(pos, "%02X-", (*ptr++ & 0377));
237 /* Erase trailing "-". Works as long as sizeof(struct sockaddr) != 0 */
242 /* Display an UNSPEC socket address. */
243 static char *UNSPEC_sprint(struct sockaddr *sap, int numeric)
247 if (sap->sa_family == 0xFFFF || sap->sa_family == 0)
248 return safe_strncpy(buf, "[NONE SET]", sizeof(buf));
249 return UNSPEC_print((unsigned char *)sap->sa_data);
252 static struct aftype unspec_aftype = {
253 "unspec", "UNSPEC", AF_UNSPEC, 0,
254 UNSPEC_print, UNSPEC_sprint, NULL, NULL,
258 static struct aftype * const aftypes[] = {
267 /* Check our protocol family table for this family. */
268 struct aftype *get_aftype(const char *name)
270 struct aftype * const *afp;
273 while (*afp != NULL) {
274 if (!strcmp((*afp)->name, name))
281 /* Check our protocol family table for this family. */
282 static struct aftype *get_afntype(int af)
284 struct aftype * const *afp;
287 while (*afp != NULL) {
288 if ((*afp)->af == af)
295 /* Check our protocol family table for this family and return its socket */
296 static int get_socket_for_af(int af)
298 struct aftype * const *afp;
301 while (*afp != NULL) {
302 if ((*afp)->af == af)
309 struct user_net_device_stats {
310 unsigned long long rx_packets; /* total packets received */
311 unsigned long long tx_packets; /* total packets transmitted */
312 unsigned long long rx_bytes; /* total bytes received */
313 unsigned long long tx_bytes; /* total bytes transmitted */
314 unsigned long rx_errors; /* bad packets received */
315 unsigned long tx_errors; /* packet transmit problems */
316 unsigned long rx_dropped; /* no space in linux buffers */
317 unsigned long tx_dropped; /* no space available in linux */
318 unsigned long rx_multicast; /* multicast packets received */
319 unsigned long rx_compressed;
320 unsigned long tx_compressed;
321 unsigned long collisions;
323 /* detailed rx_errors: */
324 unsigned long rx_length_errors;
325 unsigned long rx_over_errors; /* receiver ring buff overflow */
326 unsigned long rx_crc_errors; /* recved pkt with crc error */
327 unsigned long rx_frame_errors; /* recv'd frame alignment error */
328 unsigned long rx_fifo_errors; /* recv'r fifo overrun */
329 unsigned long rx_missed_errors; /* receiver missed packet */
330 /* detailed tx_errors */
331 unsigned long tx_aborted_errors;
332 unsigned long tx_carrier_errors;
333 unsigned long tx_fifo_errors;
334 unsigned long tx_heartbeat_errors;
335 unsigned long tx_window_errors;
339 struct interface *next, *prev;
340 char name[IFNAMSIZ]; /* interface name */
341 short type; /* if type */
342 short flags; /* various flags */
343 int metric; /* routing metric */
344 int mtu; /* MTU value */
345 int tx_queue_len; /* transmit queue length */
346 struct ifmap map; /* hardware setup */
347 struct sockaddr addr; /* IP address */
348 struct sockaddr dstaddr; /* P-P IP address */
349 struct sockaddr broadaddr; /* IP broadcast address */
350 struct sockaddr netmask; /* IP network mask */
352 char hwaddr[32]; /* HW address */
353 int statistics_valid;
354 struct user_net_device_stats stats; /* statistics */
355 int keepalive; /* keepalive value for SLIP */
356 int outfill; /* outfill value for SLIP */
360 int interface_opt_a; /* show all interfaces */
362 static struct interface *int_list, *int_last;
363 static int skfd = -1; /* generic raw socket desc. */
366 static int sockets_open(int family)
368 struct aftype * const *aft;
370 static int force = -1;
374 if (get_linux_version_code() < KERNEL_VERSION(2,1,0))
376 if (access("/proc/net", R_OK))
379 for (aft = aftypes; *aft; aft++) {
380 struct aftype *af = *aft;
381 int type = SOCK_DGRAM;
383 if (af->af == AF_UNSPEC)
385 if (family && family != af->af)
391 /* Check some /proc file first to not stress kmod */
392 if (!family && !force && af->flag_file) {
393 if (access(af->flag_file, R_OK))
396 af->fd = socket(af->af, type, 0);
401 bb_error_msg("no usable address families found");
406 #ifdef CONFIG_FEATURE_CLEAN_UP
407 static void sockets_close(void)
409 struct aftype * const *aft;
410 for (aft = aftypes; *aft != NULL; aft++) {
411 struct aftype *af = *aft;
420 /* like strcmp(), but knows about numbers */
421 except that the freshly added calls to xatoul() brf on ethernet aliases with
422 uClibc with e.g.: ife->name='lo' name='eth0:1'
423 static int nstrcmp(const char *a, const char *b)
425 const char *a_ptr = a;
426 const char *b_ptr = b;
432 if (!isdigit(*a) && isdigit(*(a+1))) {
440 if (isdigit(*a) && isdigit(*b)) {
441 return xatoul(a_ptr) > xatoul(b_ptr) ? 1 : -1;
447 static struct interface *add_interface(char *name)
449 struct interface *ife, **nextp, *new;
451 for (ife = int_last; ife; ife = ife->prev) {
452 int n = /*n*/strcmp(ife->name, name);
460 new = xzalloc(sizeof(*new));
461 safe_strncpy(new->name, name, IFNAMSIZ);
462 nextp = ife ? &ife->next : &int_list;
466 new->next->prev = new;
474 static int if_readconf(void)
482 /* SIOCGIFCONF currently seems to only work properly on AF_INET sockets
484 skfd2 = get_socket_for_af(AF_INET);
486 bb_perror_msg(("warning: no inet socket available"));
487 /* Try to soldier on with whatever socket we can get hold of. */
488 skfd2 = sockets_open(0);
495 ifc.ifc_len = sizeof(struct ifreq) * numreqs;
496 ifc.ifc_buf = xrealloc(ifc.ifc_buf, ifc.ifc_len);
498 if (ioctl(skfd2, SIOCGIFCONF, &ifc) < 0) {
499 perror("SIOCGIFCONF");
502 if (ifc.ifc_len == sizeof(struct ifreq) * numreqs) {
503 /* assume it overflowed and try again */
511 for (n = 0; n < ifc.ifc_len; n += sizeof(struct ifreq)) {
512 add_interface(ifr->ifr_name);
522 static char *get_name(char *name, char *p)
524 /* Extract <name> from nul-terminated p where p matches
525 <name>: after leading whitespace.
526 If match is not made, set name empty and return unchanged p */
527 int namestart=0, nameend=0;
528 while (isspace(p[namestart]))
531 while (p[nameend] && p[nameend]!=':' && !isspace(p[nameend]))
533 if (p[nameend]==':') {
534 if ((nameend-namestart)<IFNAMSIZ) {
535 memcpy(name,&p[namestart],nameend-namestart);
536 name[nameend-namestart]='\0';
539 /* Interface name too large */
543 /* trailing ':' not found - return empty */
549 /* If scanf supports size qualifiers for %n conversions, then we can
550 * use a modified fmt that simply stores the position in the fields
551 * having no associated fields in the proc string. Of course, we need
552 * to zero them again when we're done. But that is smaller than the
553 * old approach of multiple scanf occurrences with large numbers of
556 /* static const char * const ss_fmt[] = { */
557 /* "%lln%llu%lu%lu%lu%lu%ln%ln%lln%llu%lu%lu%lu%lu%lu", */
558 /* "%llu%llu%lu%lu%lu%lu%ln%ln%llu%llu%lu%lu%lu%lu%lu", */
559 /* "%llu%llu%lu%lu%lu%lu%lu%lu%llu%llu%lu%lu%lu%lu%lu%lu" */
562 /* Lie about the size of the int pointed to for %n. */
563 #if INT_MAX == LONG_MAX
564 static const char * const ss_fmt[] = {
565 "%n%llu%u%u%u%u%n%n%n%llu%u%u%u%u%u",
566 "%llu%llu%u%u%u%u%n%n%llu%llu%u%u%u%u%u",
567 "%llu%llu%u%u%u%u%u%u%llu%llu%u%u%u%u%u%u"
570 static const char * const ss_fmt[] = {
571 "%n%llu%lu%lu%lu%lu%n%n%n%llu%lu%lu%lu%lu%lu",
572 "%llu%llu%lu%lu%lu%lu%n%n%llu%llu%lu%lu%lu%lu%lu",
573 "%llu%llu%lu%lu%lu%lu%lu%lu%llu%llu%lu%lu%lu%lu%lu%lu"
578 static void get_dev_fields(char *bp, struct interface *ife, int procnetdev_vsn)
580 memset(&ife->stats, 0, sizeof(struct user_net_device_stats));
582 sscanf(bp, ss_fmt[procnetdev_vsn],
583 &ife->stats.rx_bytes, /* missing for 0 */
584 &ife->stats.rx_packets,
585 &ife->stats.rx_errors,
586 &ife->stats.rx_dropped,
587 &ife->stats.rx_fifo_errors,
588 &ife->stats.rx_frame_errors,
589 &ife->stats.rx_compressed, /* missing for <= 1 */
590 &ife->stats.rx_multicast, /* missing for <= 1 */
591 &ife->stats.tx_bytes, /* missing for 0 */
592 &ife->stats.tx_packets,
593 &ife->stats.tx_errors,
594 &ife->stats.tx_dropped,
595 &ife->stats.tx_fifo_errors,
596 &ife->stats.collisions,
597 &ife->stats.tx_carrier_errors,
598 &ife->stats.tx_compressed /* missing for <= 1 */
601 if (procnetdev_vsn <= 1) {
602 if (procnetdev_vsn == 0) {
603 ife->stats.rx_bytes = 0;
604 ife->stats.tx_bytes = 0;
606 ife->stats.rx_multicast = 0;
607 ife->stats.rx_compressed = 0;
608 ife->stats.tx_compressed = 0;
612 static inline int procnetdev_version(char *buf)
614 if (strstr(buf, "compressed"))
616 if (strstr(buf, "bytes"))
621 static int if_readlist_proc(char *target)
623 static int proc_read;
626 struct interface *ife;
627 int err, procnetdev_vsn;
634 fh = fopen(_PATH_PROCNET_DEV, "r");
636 bb_perror_msg("warning: cannot open %s, limiting output", _PATH_PROCNET_DEV);
637 return if_readconf();
639 fgets(buf, sizeof buf, fh); /* eat line */
640 fgets(buf, sizeof buf, fh);
642 procnetdev_vsn = procnetdev_version(buf);
645 while (fgets(buf, sizeof buf, fh)) {
648 s = get_name(name, buf);
649 ife = add_interface(name);
650 get_dev_fields(s, ife, procnetdev_vsn);
651 ife->statistics_valid = 1;
652 if (target && !strcmp(target, name))
656 perror(_PATH_PROCNET_DEV);
664 static int if_readlist(void)
666 int err = if_readlist_proc(NULL);
673 static int for_all_interfaces(int (*doit) (struct interface *, void *),
676 struct interface *ife;
678 if (!int_list && (if_readlist() < 0))
680 for (ife = int_list; ife; ife = ife->next) {
681 int err = doit(ife, cookie);
689 /* Fetch the interface configuration from the kernel. */
690 static int if_fetch(struct interface *ife)
694 char *ifname = ife->name;
696 strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
697 if (ioctl(skfd, SIOCGIFFLAGS, &ifr) < 0)
699 ife->flags = ifr.ifr_flags;
701 strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
702 if (ioctl(skfd, SIOCGIFHWADDR, &ifr) < 0)
703 memset(ife->hwaddr, 0, 32);
705 memcpy(ife->hwaddr, ifr.ifr_hwaddr.sa_data, 8);
707 ife->type = ifr.ifr_hwaddr.sa_family;
709 strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
710 if (ioctl(skfd, SIOCGIFMETRIC, &ifr) < 0)
713 ife->metric = ifr.ifr_metric;
715 strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
716 if (ioctl(skfd, SIOCGIFMTU, &ifr) < 0)
719 ife->mtu = ifr.ifr_mtu;
722 strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
723 if (ioctl(skfd, SIOCGIFMAP, &ifr) == 0)
724 ife->map = ifr.ifr_map;
727 memset(&ife->map, 0, sizeof(struct ifmap));
729 #ifdef HAVE_TXQUEUELEN
730 strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
731 if (ioctl(skfd, SIOCGIFTXQLEN, &ifr) < 0)
732 ife->tx_queue_len = -1; /* unknown value */
734 ife->tx_queue_len = ifr.ifr_qlen;
736 ife->tx_queue_len = -1; /* unknown value */
740 fd = get_socket_for_af(AF_INET);
742 strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
743 ifr.ifr_addr.sa_family = AF_INET;
744 if (ioctl(fd, SIOCGIFADDR, &ifr) == 0) {
746 ife->addr = ifr.ifr_addr;
747 strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
748 if (ioctl(fd, SIOCGIFDSTADDR, &ifr) < 0)
749 memset(&ife->dstaddr, 0, sizeof(struct sockaddr));
751 ife->dstaddr = ifr.ifr_dstaddr;
753 strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
754 if (ioctl(fd, SIOCGIFBRDADDR, &ifr) < 0)
755 memset(&ife->broadaddr, 0, sizeof(struct sockaddr));
757 ife->broadaddr = ifr.ifr_broadaddr;
759 strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
760 if (ioctl(fd, SIOCGIFNETMASK, &ifr) < 0)
761 memset(&ife->netmask, 0, sizeof(struct sockaddr));
763 ife->netmask = ifr.ifr_netmask;
765 memset(&ife->addr, 0, sizeof(struct sockaddr));
772 static int do_if_fetch(struct interface *ife)
774 if (if_fetch(ife) < 0) {
777 if (errno == ENODEV) {
778 /* Give better error message for this case. */
779 errmsg = "Device not found";
781 errmsg = strerror(errno);
783 bb_error_msg("%s: error fetching interface information: %s",
790 static const struct hwtype unspec_hwtype = {
794 .print = UNSPEC_print
797 static const struct hwtype loop_hwtype = {
799 .title = "Local Loopback",
800 .type = ARPHRD_LOOPBACK
803 #include <net/if_arp.h>
805 #if (defined(__GLIBC__) && __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 1) || defined(_NEWLIB_VERSION)
806 #include <net/ethernet.h>
808 #include <linux/if_ether.h>
811 /* Display an Ethernet address in readable format. */
812 static char *pr_ether(unsigned char *ptr)
814 static char buff[64];
816 snprintf(buff, sizeof(buff), "%02X:%02X:%02X:%02X:%02X:%02X",
817 (ptr[0] & 0377), (ptr[1] & 0377), (ptr[2] & 0377),
818 (ptr[3] & 0377), (ptr[4] & 0377), (ptr[5] & 0377)
823 static int in_ether(char *bufp, struct sockaddr *sap);
825 static struct hwtype ether_hwtype = {
828 .type = ARPHRD_ETHER,
834 static unsigned hexchar2int(char c)
838 c &= ~0x20; /* a -> A */
839 if ((unsigned)(c - 'A') <= 5)
840 return c - ('A' - 10);
844 /* Input an Ethernet address and convert to binary. */
845 static int in_ether(char *bufp, struct sockaddr *sap)
852 sap->sa_family = ether_hwtype.type;
857 while ((*bufp != '\0') && (i < ETH_ALEN)) {
858 val = hexchar2int(*bufp++) * 0x10;
864 if (c == ':' || c == 0)
867 val |= hexchar2int(c);
875 *ptr++ = (unsigned char) val;
878 /* We might get a semicolon here - not required. */
886 #include <net/if_arp.h>
888 static const struct hwtype ppp_hwtype = {
890 .title = "Point-to-Point Protocol",
894 #ifdef CONFIG_FEATURE_IPV6
895 static const struct hwtype sit_hwtype = {
897 .title = "IPv6-in-IPv4",
899 .print = UNSPEC_print,
900 .suppress_null_addr = 1
904 static const struct hwtype * const hwtypes[] = {
909 #ifdef CONFIG_FEATURE_IPV6
916 static const char * const if_port_text[] = {
917 /* Keep in step with <linux/netdevice.h> */
929 /* Check our hardware type table for this type. */
930 const struct hwtype *get_hwtype(const char *name)
932 const struct hwtype * const *hwp;
935 while (*hwp != NULL) {
936 if (!strcmp((*hwp)->name, name))
943 /* Check our hardware type table for this type. */
944 const struct hwtype *get_hwntype(int type)
946 const struct hwtype * const *hwp;
949 while (*hwp != NULL) {
950 if ((*hwp)->type == type)
957 /* return 1 if address is all zeros */
958 static int hw_null_address(const struct hwtype *hw, void *ap)
961 unsigned char *address = (unsigned char *) ap;
963 for (i = 0; i < hw->alen; i++)
969 static const char TRext[] = "\0\0\0Ki\0Mi\0Gi\0Ti";
971 static void print_bytes_scaled(unsigned long long ull, const char *end)
973 unsigned long long int_part;
975 unsigned int frac_part;
983 if (int_part >= 1024) {
984 frac_part = ((((unsigned int) int_part) & (1024-1)) * 10) / 1024;
986 ext += 3; /* KiB, MiB, GiB, TiB */
991 printf("X bytes:%llu (%llu.%u %sB)%s", ull, int_part, frac_part, ext, end);
994 static const char * const ife_print_flags_strs[] = {
1013 static const unsigned short ife_print_flags_mask[] = {
1033 static void ife_print(struct interface *ptr)
1036 const struct hwtype *hw;
1038 int can_compress = 0;
1042 char addr6[40], devname[20];
1043 struct sockaddr_in6 sap;
1044 int plen, scope, dad_status, if_idx;
1048 ap = get_afntype(ptr->addr.sa_family);
1050 ap = get_afntype(0);
1054 if (hf == ARPHRD_CSLIP || hf == ARPHRD_CSLIP6)
1057 hw = get_hwntype(hf);
1059 hw = get_hwntype(-1);
1061 printf("%-9.9s Link encap:%s ", ptr->name, hw->title);
1062 /* For some hardware types (eg Ash, ATM) we don't print the
1063 hardware address if it's null. */
1064 if (hw->print != NULL && (!(hw_null_address(hw, ptr->hwaddr) &&
1065 hw->suppress_null_addr)))
1066 printf("HWaddr %s ", hw->print((unsigned char *)ptr->hwaddr));
1068 if (ptr->flags & IFF_PORTSEL) {
1069 printf("Media:%s", if_port_text[ptr->map.port] /* [0] */);
1070 if (ptr->flags & IFF_AUTOMEDIA)
1077 printf(" %s addr:%s ", ap->name,
1078 ap->sprint(&ptr->addr, 1));
1079 if (ptr->flags & IFF_POINTOPOINT) {
1080 printf(" P-t-P:%s ", ap->sprint(&ptr->dstaddr, 1));
1082 if (ptr->flags & IFF_BROADCAST) {
1083 printf(" Bcast:%s ", ap->sprint(&ptr->broadaddr, 1));
1085 printf(" Mask:%s\n", ap->sprint(&ptr->netmask, 1));
1090 #define IPV6_ADDR_ANY 0x0000U
1092 #define IPV6_ADDR_UNICAST 0x0001U
1093 #define IPV6_ADDR_MULTICAST 0x0002U
1094 #define IPV6_ADDR_ANYCAST 0x0004U
1096 #define IPV6_ADDR_LOOPBACK 0x0010U
1097 #define IPV6_ADDR_LINKLOCAL 0x0020U
1098 #define IPV6_ADDR_SITELOCAL 0x0040U
1100 #define IPV6_ADDR_COMPATv4 0x0080U
1102 #define IPV6_ADDR_SCOPE_MASK 0x00f0U
1104 #define IPV6_ADDR_MAPPED 0x1000U
1105 #define IPV6_ADDR_RESERVED 0x2000U /* reserved address space */
1107 if ((f = fopen(_PATH_PROCNET_IFINET6, "r")) != NULL) {
1109 (f, "%4s%4s%4s%4s%4s%4s%4s%4s %02x %02x %02x %02x %20s\n",
1110 addr6p[0], addr6p[1], addr6p[2], addr6p[3], addr6p[4],
1111 addr6p[5], addr6p[6], addr6p[7], &if_idx, &plen, &scope,
1112 &dad_status, devname) != EOF) {
1113 if (!strcmp(devname, ptr->name)) {
1114 sprintf(addr6, "%s:%s:%s:%s:%s:%s:%s:%s",
1115 addr6p[0], addr6p[1], addr6p[2], addr6p[3],
1116 addr6p[4], addr6p[5], addr6p[6], addr6p[7]);
1117 inet_pton(AF_INET6, addr6,
1118 (struct sockaddr *) &sap.sin6_addr);
1119 sap.sin6_family = AF_INET6;
1120 printf(" inet6 addr: %s/%d",
1121 inet6_aftype.sprint((struct sockaddr *) &sap, 1),
1124 switch (scope & IPV6_ADDR_SCOPE_MASK) {
1128 case IPV6_ADDR_LINKLOCAL:
1131 case IPV6_ADDR_SITELOCAL:
1134 case IPV6_ADDR_COMPATv4:
1137 case IPV6_ADDR_LOOPBACK:
1151 /* DONT FORGET TO ADD THE FLAGS IN ife_print_short, too */
1153 if (ptr->flags == 0) {
1154 printf("[NO FLAGS] ");
1158 if (ptr->flags & ife_print_flags_mask[i]) {
1159 printf(ife_print_flags_strs[i]);
1161 } while (ife_print_flags_mask[++i]);
1164 /* DONT FORGET TO ADD THE FLAGS IN ife_print_short */
1165 printf(" MTU:%d Metric:%d", ptr->mtu, ptr->metric ? ptr->metric : 1);
1166 #ifdef SIOCSKEEPALIVE
1167 if (ptr->outfill || ptr->keepalive)
1168 printf(" Outfill:%d Keepalive:%d", ptr->outfill, ptr->keepalive);
1172 /* If needed, display the interface statistics. */
1174 if (ptr->statistics_valid) {
1175 /* XXX: statistics are currently only printed for the primary address,
1176 * not for the aliases, although strictly speaking they're shared
1181 printf("RX packets:%llu errors:%lu dropped:%lu overruns:%lu frame:%lu\n",
1182 ptr->stats.rx_packets, ptr->stats.rx_errors,
1183 ptr->stats.rx_dropped, ptr->stats.rx_fifo_errors,
1184 ptr->stats.rx_frame_errors);
1186 printf(" compressed:%lu\n",
1187 ptr->stats.rx_compressed);
1189 printf("TX packets:%llu errors:%lu dropped:%lu overruns:%lu carrier:%lu\n",
1190 ptr->stats.tx_packets, ptr->stats.tx_errors,
1191 ptr->stats.tx_dropped, ptr->stats.tx_fifo_errors,
1192 ptr->stats.tx_carrier_errors);
1193 printf(" collisions:%lu ", ptr->stats.collisions);
1195 printf("compressed:%lu ", ptr->stats.tx_compressed);
1196 if (ptr->tx_queue_len != -1)
1197 printf("txqueuelen:%d ", ptr->tx_queue_len);
1199 print_bytes_scaled(ptr->stats.rx_bytes, " T");
1200 print_bytes_scaled(ptr->stats.tx_bytes, "\n");
1204 if ((ptr->map.irq || ptr->map.mem_start || ptr->map.dma ||
1205 ptr->map.base_addr)) {
1208 printf("Interrupt:%d ", ptr->map.irq);
1209 if (ptr->map.base_addr >= 0x100) /* Only print devices using it for
1211 printf("Base address:0x%lx ",
1212 (unsigned long) ptr->map.base_addr);
1213 if (ptr->map.mem_start) {
1214 printf("Memory:%lx-%lx ", ptr->map.mem_start,
1218 printf("DMA chan:%x ", ptr->map.dma);
1225 static int do_if_print(struct interface *ife, void *cookie)
1227 int *opt_a = (int *) cookie;
1230 res = do_if_fetch(ife);
1232 if ((ife->flags & IFF_UP) || *opt_a)
1238 static struct interface *lookup_interface(char *name)
1240 struct interface *ife = NULL;
1242 if (if_readlist_proc(name) < 0)
1244 ife = add_interface(name);
1248 /* for ipv4 add/del modes */
1249 static int if_print(char *ifname)
1254 res = for_all_interfaces(do_if_print, &interface_opt_a);
1256 struct interface *ife;
1258 ife = lookup_interface(ifname);
1259 res = do_if_fetch(ife);
1266 int display_interfaces(char *ifname)
1270 /* Create a channel to the NET kernel. */
1271 if ((skfd = sockets_open(0)) < 0) {
1272 bb_perror_msg_and_die("socket");
1275 /* Do we have to show the current setup? */
1276 status = if_print(ifname);
1277 #ifdef CONFIG_FEATURE_CLEAN_UP