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 = {
130 .title = "DARPA Internet",
133 .sprint = INET_sprint,
139 /* Display an Internet socket address. */
140 /* dirty! struct sockaddr usually doesn't suffer for inet6 addresses, fst. */
141 static char *INET6_sprint(struct sockaddr *sap, int numeric)
143 static char buff[128];
145 if (sap->sa_family == 0xFFFF || sap->sa_family == 0)
146 return safe_strncpy(buff, "[NONE SET]", sizeof(buff));
148 (buff, sizeof(buff), (struct sockaddr_in6 *) sap, numeric) != 0)
149 return safe_strncpy(buff, "[UNKNOWN]", sizeof(buff));
153 static struct aftype inet6_aftype = {
157 .alen = sizeof(struct in6_addr),
158 .sprint = INET6_sprint,
162 #endif /* HAVE_AFINET6 */
164 /* Display an UNSPEC address. */
165 static char *UNSPEC_print(unsigned char *ptr)
167 static char buff[sizeof(struct sockaddr) * 3 + 1];
172 for (i = 0; i < sizeof(struct sockaddr); i++) {
173 /* careful -- not every libc's sprintf returns # bytes written */
174 sprintf(pos, "%02X-", (*ptr++ & 0377));
177 /* Erase trailing "-". Works as long as sizeof(struct sockaddr) != 0 */
182 /* Display an UNSPEC socket address. */
183 static char *UNSPEC_sprint(struct sockaddr *sap, int numeric)
187 if (sap->sa_family == 0xFFFF || sap->sa_family == 0)
188 return safe_strncpy(buf, "[NONE SET]", sizeof(buf));
189 return (UNSPEC_print((unsigned char *)sap->sa_data));
192 static struct aftype unspec_aftype = {
193 "unspec", "UNSPEC", AF_UNSPEC, 0,
194 UNSPEC_print, UNSPEC_sprint, NULL, NULL,
198 static struct aftype * const aftypes[] = {
207 /* Check our protocol family table for this family. */
208 static struct aftype *get_afntype(int af)
210 struct aftype * const *afp;
213 while (*afp != NULL) {
214 if ((*afp)->af == af)
221 /* Check our protocol family table for this family and return its socket */
222 static int get_socket_for_af(int af)
224 struct aftype * const *afp;
227 while (*afp != NULL) {
228 if ((*afp)->af == af)
235 struct user_net_device_stats {
236 unsigned long long rx_packets; /* total packets received */
237 unsigned long long tx_packets; /* total packets transmitted */
238 unsigned long long rx_bytes; /* total bytes received */
239 unsigned long long tx_bytes; /* total bytes transmitted */
240 unsigned long rx_errors; /* bad packets received */
241 unsigned long tx_errors; /* packet transmit problems */
242 unsigned long rx_dropped; /* no space in linux buffers */
243 unsigned long tx_dropped; /* no space available in linux */
244 unsigned long rx_multicast; /* multicast packets received */
245 unsigned long rx_compressed;
246 unsigned long tx_compressed;
247 unsigned long collisions;
249 /* detailed rx_errors: */
250 unsigned long rx_length_errors;
251 unsigned long rx_over_errors; /* receiver ring buff overflow */
252 unsigned long rx_crc_errors; /* recved pkt with crc error */
253 unsigned long rx_frame_errors; /* recv'd frame alignment error */
254 unsigned long rx_fifo_errors; /* recv'r fifo overrun */
255 unsigned long rx_missed_errors; /* receiver missed packet */
256 /* detailed tx_errors */
257 unsigned long tx_aborted_errors;
258 unsigned long tx_carrier_errors;
259 unsigned long tx_fifo_errors;
260 unsigned long tx_heartbeat_errors;
261 unsigned long tx_window_errors;
265 struct interface *next, *prev;
266 char name[IFNAMSIZ]; /* interface name */
267 short type; /* if type */
268 short flags; /* various flags */
269 int metric; /* routing metric */
270 int mtu; /* MTU value */
271 int tx_queue_len; /* transmit queue length */
272 struct ifmap map; /* hardware setup */
273 struct sockaddr addr; /* IP address */
274 struct sockaddr dstaddr; /* P-P IP address */
275 struct sockaddr broadaddr; /* IP broadcast address */
276 struct sockaddr netmask; /* IP network mask */
278 char hwaddr[32]; /* HW address */
279 int statistics_valid;
280 struct user_net_device_stats stats; /* statistics */
281 int keepalive; /* keepalive value for SLIP */
282 int outfill; /* outfill value for SLIP */
286 int interface_opt_a = 0; /* show all interfaces */
288 static struct interface *int_list, *int_last;
289 static int skfd = -1; /* generic raw socket desc. */
292 static int sockets_open(int family)
294 struct aftype * const *aft;
296 static int force = -1;
300 if (get_linux_version_code() < KERNEL_VERSION(2,1,0))
302 if (access("/proc/net", R_OK))
305 for (aft = aftypes; *aft; aft++) {
306 struct aftype *af = *aft;
307 int type = SOCK_DGRAM;
309 if (af->af == AF_UNSPEC)
311 if (family && family != af->af)
317 /* Check some /proc file first to not stress kmod */
318 if (!family && !force && af->flag_file) {
319 if (access(af->flag_file, R_OK))
322 af->fd = socket(af->af, type, 0);
327 bb_error_msg("No usable address families found.");
332 #ifdef CONFIG_FEATURE_CLEAN_UP
333 static void sockets_close(void)
335 struct aftype * const *aft;
336 for (aft = aftypes; *aft != NULL; aft++) {
337 struct aftype *af = *aft;
346 /* like strcmp(), but knows about numbers */
347 static int nstrcmp(const char *a, const char *b)
349 const char *a_ptr = a;
350 const char *b_ptr = b;
356 if (!isdigit(*a) && isdigit(*(a+1))) {
364 if (isdigit(*a) && isdigit(*b)) {
365 return atoi(a_ptr) > atoi(b_ptr) ? 1 : -1;
370 static struct interface *add_interface(char *name)
372 struct interface *ife, **nextp, *new;
374 for (ife = int_last; ife; ife = ife->prev) {
375 int n = nstrcmp(ife->name, name);
383 new = xzalloc(sizeof(*new));
384 safe_strncpy(new->name, name, IFNAMSIZ);
385 nextp = ife ? &ife->next : &int_list;
389 new->next->prev = new;
397 static int if_readconf(void)
405 /* SIOCGIFCONF currently seems to only work properly on AF_INET sockets
407 skfd2 = get_socket_for_af(AF_INET);
409 bb_perror_msg(("warning: no inet socket available"));
410 /* Try to soldier on with whatever socket we can get hold of. */
411 skfd2 = sockets_open(0);
418 ifc.ifc_len = sizeof(struct ifreq) * numreqs;
419 ifc.ifc_buf = xrealloc(ifc.ifc_buf, ifc.ifc_len);
421 if (ioctl(skfd2, SIOCGIFCONF, &ifc) < 0) {
422 perror("SIOCGIFCONF");
425 if (ifc.ifc_len == sizeof(struct ifreq) * numreqs) {
426 /* assume it overflowed and try again */
434 for (n = 0; n < ifc.ifc_len; n += sizeof(struct ifreq)) {
435 add_interface(ifr->ifr_name);
445 static char *get_name(char *name, char *p)
447 /* Extract <name> from nul-terminated p where p matches
448 <name>: after leading whitespace.
449 If match is not made, set name empty and return unchanged p */
450 int namestart=0, nameend=0;
451 while (isspace(p[namestart]))
454 while (p[nameend] && p[nameend]!=':' && !isspace(p[nameend]))
456 if (p[nameend]==':') {
457 if ((nameend-namestart)<IFNAMSIZ) {
458 memcpy(name,&p[namestart],nameend-namestart);
459 name[nameend-namestart]='\0';
462 /* Interface name too large */
466 /* trailing ':' not found - return empty */
472 /* If scanf supports size qualifiers for %n conversions, then we can
473 * use a modified fmt that simply stores the position in the fields
474 * having no associated fields in the proc string. Of course, we need
475 * to zero them again when we're done. But that is smaller than the
476 * old approach of multiple scanf occurrences with large numbers of
479 /* static const char * const ss_fmt[] = { */
480 /* "%lln%llu%lu%lu%lu%lu%ln%ln%lln%llu%lu%lu%lu%lu%lu", */
481 /* "%llu%llu%lu%lu%lu%lu%ln%ln%llu%llu%lu%lu%lu%lu%lu", */
482 /* "%llu%llu%lu%lu%lu%lu%lu%lu%llu%llu%lu%lu%lu%lu%lu%lu" */
485 /* Lie about the size of the int pointed to for %n. */
486 #if INT_MAX == LONG_MAX
487 static const char * const ss_fmt[] = {
488 "%n%llu%u%u%u%u%n%n%n%llu%u%u%u%u%u",
489 "%llu%llu%u%u%u%u%n%n%llu%llu%u%u%u%u%u",
490 "%llu%llu%u%u%u%u%u%u%llu%llu%u%u%u%u%u%u"
493 static const char * const ss_fmt[] = {
494 "%n%llu%lu%lu%lu%lu%n%n%n%llu%lu%lu%lu%lu%lu",
495 "%llu%llu%lu%lu%lu%lu%n%n%llu%llu%lu%lu%lu%lu%lu",
496 "%llu%llu%lu%lu%lu%lu%lu%lu%llu%llu%lu%lu%lu%lu%lu%lu"
501 static void get_dev_fields(char *bp, struct interface *ife, int procnetdev_vsn)
503 memset(&ife->stats, 0, sizeof(struct user_net_device_stats));
505 sscanf(bp, ss_fmt[procnetdev_vsn],
506 &ife->stats.rx_bytes, /* missing for 0 */
507 &ife->stats.rx_packets,
508 &ife->stats.rx_errors,
509 &ife->stats.rx_dropped,
510 &ife->stats.rx_fifo_errors,
511 &ife->stats.rx_frame_errors,
512 &ife->stats.rx_compressed, /* missing for <= 1 */
513 &ife->stats.rx_multicast, /* missing for <= 1 */
514 &ife->stats.tx_bytes, /* missing for 0 */
515 &ife->stats.tx_packets,
516 &ife->stats.tx_errors,
517 &ife->stats.tx_dropped,
518 &ife->stats.tx_fifo_errors,
519 &ife->stats.collisions,
520 &ife->stats.tx_carrier_errors,
521 &ife->stats.tx_compressed /* missing for <= 1 */
524 if (procnetdev_vsn <= 1) {
525 if (procnetdev_vsn == 0) {
526 ife->stats.rx_bytes = 0;
527 ife->stats.tx_bytes = 0;
529 ife->stats.rx_multicast = 0;
530 ife->stats.rx_compressed = 0;
531 ife->stats.tx_compressed = 0;
535 static inline int procnetdev_version(char *buf)
537 if (strstr(buf, "compressed"))
539 if (strstr(buf, "bytes"))
544 static int if_readlist_proc(char *target)
546 static int proc_read;
549 struct interface *ife;
550 int err, procnetdev_vsn;
557 fh = fopen(_PATH_PROCNET_DEV, "r");
559 bb_perror_msg("Warning: cannot open %s. Limited output.", _PATH_PROCNET_DEV);
560 return if_readconf();
562 fgets(buf, sizeof buf, fh); /* eat line */
563 fgets(buf, sizeof buf, fh);
565 procnetdev_vsn = procnetdev_version(buf);
568 while (fgets(buf, sizeof buf, fh)) {
571 s = get_name(name, buf);
572 ife = add_interface(name);
573 get_dev_fields(s, ife, procnetdev_vsn);
574 ife->statistics_valid = 1;
575 if (target && !strcmp(target, name))
579 perror(_PATH_PROCNET_DEV);
587 static int if_readlist(void)
589 int err = if_readlist_proc(NULL);
596 static int for_all_interfaces(int (*doit) (struct interface *, void *),
599 struct interface *ife;
601 if (!int_list && (if_readlist() < 0))
603 for (ife = int_list; ife; ife = ife->next) {
604 int err = doit(ife, cookie);
612 /* Fetch the interface configuration from the kernel. */
613 static int if_fetch(struct interface *ife)
617 char *ifname = ife->name;
619 strcpy(ifr.ifr_name, ifname);
620 if (ioctl(skfd, SIOCGIFFLAGS, &ifr) < 0)
622 ife->flags = ifr.ifr_flags;
624 strcpy(ifr.ifr_name, ifname);
625 if (ioctl(skfd, SIOCGIFHWADDR, &ifr) < 0)
626 memset(ife->hwaddr, 0, 32);
628 memcpy(ife->hwaddr, ifr.ifr_hwaddr.sa_data, 8);
630 ife->type = ifr.ifr_hwaddr.sa_family;
632 strcpy(ifr.ifr_name, ifname);
633 if (ioctl(skfd, SIOCGIFMETRIC, &ifr) < 0)
636 ife->metric = ifr.ifr_metric;
638 strcpy(ifr.ifr_name, ifname);
639 if (ioctl(skfd, SIOCGIFMTU, &ifr) < 0)
642 ife->mtu = ifr.ifr_mtu;
645 strcpy(ifr.ifr_name, ifname);
646 if (ioctl(skfd, SIOCGIFMAP, &ifr) == 0)
647 ife->map = ifr.ifr_map;
650 memset(&ife->map, 0, sizeof(struct ifmap));
652 #ifdef HAVE_TXQUEUELEN
653 strcpy(ifr.ifr_name, ifname);
654 if (ioctl(skfd, SIOCGIFTXQLEN, &ifr) < 0)
655 ife->tx_queue_len = -1; /* unknown value */
657 ife->tx_queue_len = ifr.ifr_qlen;
659 ife->tx_queue_len = -1; /* unknown value */
663 fd = get_socket_for_af(AF_INET);
665 strcpy(ifr.ifr_name, ifname);
666 ifr.ifr_addr.sa_family = AF_INET;
667 if (ioctl(fd, SIOCGIFADDR, &ifr) == 0) {
669 ife->addr = ifr.ifr_addr;
670 strcpy(ifr.ifr_name, ifname);
671 if (ioctl(fd, SIOCGIFDSTADDR, &ifr) < 0)
672 memset(&ife->dstaddr, 0, sizeof(struct sockaddr));
674 ife->dstaddr = ifr.ifr_dstaddr;
676 strcpy(ifr.ifr_name, ifname);
677 if (ioctl(fd, SIOCGIFBRDADDR, &ifr) < 0)
678 memset(&ife->broadaddr, 0, sizeof(struct sockaddr));
680 ife->broadaddr = ifr.ifr_broadaddr;
682 strcpy(ifr.ifr_name, ifname);
683 if (ioctl(fd, SIOCGIFNETMASK, &ifr) < 0)
684 memset(&ife->netmask, 0, sizeof(struct sockaddr));
686 ife->netmask = ifr.ifr_netmask;
688 memset(&ife->addr, 0, sizeof(struct sockaddr));
695 static int do_if_fetch(struct interface *ife)
697 if (if_fetch(ife) < 0) {
700 if (errno == ENODEV) {
701 /* Give better error message for this case. */
702 errmsg = "Device not found";
704 errmsg = strerror(errno);
706 bb_error_msg("%s: error fetching interface information: %s",
713 /* This structure defines hardware protocols and their handlers. */
715 const char * const name;
719 char *(*print) (unsigned char *);
720 int (*input) (char *, struct sockaddr *);
721 int (*activate) (int fd);
722 int suppress_null_addr;
725 static const struct hwtype unspec_hwtype = {
726 "unspec", "UNSPEC", -1, 0,
727 UNSPEC_print, NULL, NULL
730 static const struct hwtype loop_hwtype = {
731 "loop", "Local Loopback", ARPHRD_LOOPBACK, 0,
735 #include <net/if_arp.h>
737 #if (__GLIBC__ >=2 && __GLIBC_MINOR >= 1) || defined(_NEWLIB_VERSION)
738 #include <net/ethernet.h>
740 #include <linux/if_ether.h>
743 /* Display an Ethernet address in readable format. */
744 static char *pr_ether(unsigned char *ptr)
746 static char buff[64];
748 snprintf(buff, sizeof(buff), "%02X:%02X:%02X:%02X:%02X:%02X",
749 (ptr[0] & 0377), (ptr[1] & 0377), (ptr[2] & 0377),
750 (ptr[3] & 0377), (ptr[4] & 0377), (ptr[5] & 0377)
755 static const struct hwtype ether_hwtype = {
756 "ether", "Ethernet", ARPHRD_ETHER, ETH_ALEN,
757 pr_ether, NULL /* UNUSED in_ether */ , NULL
760 #include <net/if_arp.h>
762 static const struct hwtype ppp_hwtype = {
763 "ppp", "Point-Point Protocol", ARPHRD_PPP, 0,
764 NULL, NULL, NULL /* UNUSED do_ppp */ , 0
767 static const struct hwtype * const hwtypes[] = {
776 static const char * const if_port_text[] = {
777 /* Keep in step with <linux/netdevice.h> */
789 /* Check our hardware type table for this type. */
790 static const struct hwtype *get_hwntype(int type)
792 const struct hwtype * const *hwp;
795 while (*hwp != NULL) {
796 if ((*hwp)->type == type)
803 /* return 1 if address is all zeros */
804 static int hw_null_address(const struct hwtype *hw, void *ap)
807 unsigned char *address = (unsigned char *) ap;
809 for (i = 0; i < hw->alen; i++)
815 static const char TRext[] = "\0\0\0Ki\0Mi\0Gi\0Ti";
817 static void print_bytes_scaled(unsigned long long ull, const char *end)
819 unsigned long long int_part;
821 unsigned int frac_part;
829 if (int_part >= 1024) {
830 frac_part = ((((unsigned int) int_part) & (1024-1)) * 10) / 1024;
832 ext += 3; /* KiB, MiB, GiB, TiB */
837 printf("X bytes:%llu (%llu.%u %sB)%s", ull, int_part, frac_part, ext, end);
840 static const char * const ife_print_flags_strs[] = {
859 static const unsigned short ife_print_flags_mask[] = {
879 static void ife_print(struct interface *ptr)
882 const struct hwtype *hw;
884 int can_compress = 0;
888 char addr6[40], devname[20];
889 struct sockaddr_in6 sap;
890 int plen, scope, dad_status, if_idx;
894 ap = get_afntype(ptr->addr.sa_family);
900 if (hf == ARPHRD_CSLIP || hf == ARPHRD_CSLIP6)
903 hw = get_hwntype(hf);
905 hw = get_hwntype(-1);
907 printf("%-9.9s Link encap:%s ", ptr->name, hw->title);
908 /* For some hardware types (eg Ash, ATM) we don't print the
909 hardware address if it's null. */
910 if (hw->print != NULL && (!(hw_null_address(hw, ptr->hwaddr) &&
911 hw->suppress_null_addr)))
912 printf("HWaddr %s ", hw->print((unsigned char *)ptr->hwaddr));
914 if (ptr->flags & IFF_PORTSEL) {
915 printf("Media:%s", if_port_text[ptr->map.port] /* [0] */);
916 if (ptr->flags & IFF_AUTOMEDIA)
923 printf(" %s addr:%s ", ap->name,
924 ap->sprint(&ptr->addr, 1));
925 if (ptr->flags & IFF_POINTOPOINT) {
926 printf(" P-t-P:%s ", ap->sprint(&ptr->dstaddr, 1));
928 if (ptr->flags & IFF_BROADCAST) {
929 printf(" Bcast:%s ", ap->sprint(&ptr->broadaddr, 1));
931 printf(" Mask:%s\n", ap->sprint(&ptr->netmask, 1));
936 #define IPV6_ADDR_ANY 0x0000U
938 #define IPV6_ADDR_UNICAST 0x0001U
939 #define IPV6_ADDR_MULTICAST 0x0002U
940 #define IPV6_ADDR_ANYCAST 0x0004U
942 #define IPV6_ADDR_LOOPBACK 0x0010U
943 #define IPV6_ADDR_LINKLOCAL 0x0020U
944 #define IPV6_ADDR_SITELOCAL 0x0040U
946 #define IPV6_ADDR_COMPATv4 0x0080U
948 #define IPV6_ADDR_SCOPE_MASK 0x00f0U
950 #define IPV6_ADDR_MAPPED 0x1000U
951 #define IPV6_ADDR_RESERVED 0x2000U /* reserved address space */
953 if ((f = fopen(_PATH_PROCNET_IFINET6, "r")) != NULL) {
955 (f, "%4s%4s%4s%4s%4s%4s%4s%4s %02x %02x %02x %02x %20s\n",
956 addr6p[0], addr6p[1], addr6p[2], addr6p[3], addr6p[4],
957 addr6p[5], addr6p[6], addr6p[7], &if_idx, &plen, &scope,
958 &dad_status, devname) != EOF) {
959 if (!strcmp(devname, ptr->name)) {
960 sprintf(addr6, "%s:%s:%s:%s:%s:%s:%s:%s",
961 addr6p[0], addr6p[1], addr6p[2], addr6p[3],
962 addr6p[4], addr6p[5], addr6p[6], addr6p[7]);
963 inet_pton(AF_INET6, addr6,
964 (struct sockaddr *) &sap.sin6_addr);
965 sap.sin6_family = AF_INET6;
966 printf(" inet6 addr: %s/%d",
967 inet6_aftype.sprint((struct sockaddr *) &sap, 1),
970 switch (scope & IPV6_ADDR_SCOPE_MASK) {
974 case IPV6_ADDR_LINKLOCAL:
977 case IPV6_ADDR_SITELOCAL:
980 case IPV6_ADDR_COMPATv4:
983 case IPV6_ADDR_LOOPBACK:
997 /* DONT FORGET TO ADD THE FLAGS IN ife_print_short, too */
999 if (ptr->flags == 0) {
1000 printf("[NO FLAGS] ");
1004 if (ptr->flags & ife_print_flags_mask[i]) {
1005 printf(ife_print_flags_strs[i]);
1007 } while (ife_print_flags_mask[++i]);
1010 /* DONT FORGET TO ADD THE FLAGS IN ife_print_short */
1011 printf(" MTU:%d Metric:%d", ptr->mtu, ptr->metric ? ptr->metric : 1);
1012 #ifdef SIOCSKEEPALIVE
1013 if (ptr->outfill || ptr->keepalive)
1014 printf(" Outfill:%d Keepalive:%d", ptr->outfill, ptr->keepalive);
1018 /* If needed, display the interface statistics. */
1020 if (ptr->statistics_valid) {
1021 /* XXX: statistics are currently only printed for the primary address,
1022 * not for the aliases, although strictly speaking they're shared
1027 printf("RX packets:%llu errors:%lu dropped:%lu overruns:%lu frame:%lu\n",
1028 ptr->stats.rx_packets, ptr->stats.rx_errors,
1029 ptr->stats.rx_dropped, ptr->stats.rx_fifo_errors,
1030 ptr->stats.rx_frame_errors);
1032 printf(" compressed:%lu\n",
1033 ptr->stats.rx_compressed);
1035 printf("TX packets:%llu errors:%lu dropped:%lu overruns:%lu carrier:%lu\n",
1036 ptr->stats.tx_packets, ptr->stats.tx_errors,
1037 ptr->stats.tx_dropped, ptr->stats.tx_fifo_errors,
1038 ptr->stats.tx_carrier_errors);
1039 printf(" collisions:%lu ", ptr->stats.collisions);
1041 printf("compressed:%lu ", ptr->stats.tx_compressed);
1042 if (ptr->tx_queue_len != -1)
1043 printf("txqueuelen:%d ", ptr->tx_queue_len);
1045 print_bytes_scaled(ptr->stats.rx_bytes, " T");
1046 print_bytes_scaled(ptr->stats.tx_bytes, "\n");
1050 if ((ptr->map.irq || ptr->map.mem_start || ptr->map.dma ||
1051 ptr->map.base_addr)) {
1054 printf("Interrupt:%d ", ptr->map.irq);
1055 if (ptr->map.base_addr >= 0x100) /* Only print devices using it for
1057 printf("Base address:0x%lx ",
1058 (unsigned long) ptr->map.base_addr);
1059 if (ptr->map.mem_start) {
1060 printf("Memory:%lx-%lx ", ptr->map.mem_start,
1064 printf("DMA chan:%x ", ptr->map.dma);
1071 static int do_if_print(struct interface *ife, void *cookie)
1073 int *opt_a = (int *) cookie;
1076 res = do_if_fetch(ife);
1078 if ((ife->flags & IFF_UP) || *opt_a)
1084 static struct interface *lookup_interface(char *name)
1086 struct interface *ife = NULL;
1088 if (if_readlist_proc(name) < 0)
1090 ife = add_interface(name);
1094 /* for ipv4 add/del modes */
1095 static int if_print(char *ifname)
1100 res = for_all_interfaces(do_if_print, &interface_opt_a);
1102 struct interface *ife;
1104 ife = lookup_interface(ifname);
1105 res = do_if_fetch(ife);
1112 int display_interfaces(char *ifname);
1113 int display_interfaces(char *ifname)
1117 /* Create a channel to the NET kernel. */
1118 if ((skfd = sockets_open(0)) < 0) {
1119 bb_perror_msg_and_die("socket");
1122 /* Do we have to show the current setup? */
1123 status = if_print(ifname);
1124 #ifdef CONFIG_FEATURE_CLEAN_UP