[821] | 1 | /*
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| 2 | * stolen from net-tools-1.59 and stripped down for busybox by
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| 3 | * Erik Andersen <andersen@codepoet.org>
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| 4 | *
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| 5 | * Heavily modified by Manuel Novoa III Mar 12, 2001
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| 6 | *
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| 7 | * Added print_bytes_scaled function to reduce code size.
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| 8 | * Added some (potentially) missing defines.
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| 9 | * Improved display support for -a and for a named interface.
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| 10 | *
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| 11 | * -----------------------------------------------------------
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| 12 | *
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| 13 | * ifconfig This file contains an implementation of the command
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| 14 | * that either displays or sets the characteristics of
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| 15 | * one or more of the system's networking interfaces.
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| 16 | *
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| 17 | * Version: $Id: interface.c,v 1.25 2004/08/26 21:45:21 andersen Exp $
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| 18 | *
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| 19 | * Author: Fred N. van Kempen, <waltje@uwalt.nl.mugnet.org>
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| 20 | * and others. Copyright 1993 MicroWalt Corporation
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| 21 | *
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| 22 | * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
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| 23 | *
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| 24 | * Patched to support 'add' and 'del' keywords for INET(4) addresses
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| 25 | * by Mrs. Brisby <mrs.brisby@nimh.org>
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| 26 | *
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| 27 | * {1.34} - 19980630 - Arnaldo Carvalho de Melo <acme@conectiva.com.br>
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| 28 | * - gettext instead of catgets for i18n
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| 29 | * 10/1998 - Andi Kleen. Use interface list primitives.
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| 30 | * 20001008 - Bernd Eckenfels, Patch from RH for setting mtu
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| 31 | * (default AF was wrong)
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| 32 | */
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| 33 |
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| 34 | #include "inet_common.h"
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| 35 | #include <stdio.h>
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| 36 | #include <errno.h>
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| 37 | #include <stdlib.h>
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| 38 | #include <string.h>
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| 39 | #include <unistd.h>
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| 40 | #include <fcntl.h>
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| 41 | #include <ctype.h>
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| 42 | #include <sys/ioctl.h>
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| 43 | #include <sys/types.h>
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| 44 | #include <net/if.h>
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| 45 | #include <net/if_arp.h>
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| 46 | #include "busybox.h"
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| 47 |
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| 48 | #ifdef CONFIG_FEATURE_IPV6
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| 49 | # define HAVE_AFINET6 1
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| 50 | #else
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| 51 | # undef HAVE_AFINET6
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| 52 | #endif
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| 53 |
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| 54 | #define _PATH_PROCNET_DEV "/proc/net/dev"
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| 55 | #define _PATH_PROCNET_IFINET6 "/proc/net/if_inet6"
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| 56 |
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| 57 | #if HAVE_AFINET6
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| 58 |
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| 59 | #ifndef _LINUX_IN6_H
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| 60 | /*
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| 61 | * This is in linux/include/net/ipv6.h.
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| 62 | */
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| 63 |
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| 64 | struct in6_ifreq {
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| 65 | struct in6_addr ifr6_addr;
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| 66 | uint32_t ifr6_prefixlen;
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| 67 | unsigned int ifr6_ifindex;
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| 68 | };
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| 69 |
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| 70 | #endif
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| 71 |
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| 72 | #endif /* HAVE_AFINET6 */
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| 73 |
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| 74 | /* Defines for glibc2.0 users. */
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| 75 | #ifndef SIOCSIFTXQLEN
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| 76 | #define SIOCSIFTXQLEN 0x8943
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| 77 | #define SIOCGIFTXQLEN 0x8942
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| 78 | #endif
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| 79 |
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| 80 | /* ifr_qlen is ifru_ivalue, but it isn't present in 2.0 kernel headers */
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| 81 | #ifndef ifr_qlen
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| 82 | #define ifr_qlen ifr_ifru.ifru_mtu
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| 83 | #endif
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| 84 |
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| 85 | #ifndef HAVE_TXQUEUELEN
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| 86 | #define HAVE_TXQUEUELEN 1
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| 87 | #endif
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| 88 |
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| 89 | #ifndef IFF_DYNAMIC
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| 90 | #define IFF_DYNAMIC 0x8000 /* dialup device with changing addresses */
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| 91 | #endif
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| 92 |
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| 93 | /* This structure defines protocol families and their handlers. */
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| 94 | struct aftype {
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| 95 | const char *name;
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| 96 | const char *title;
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| 97 | int af;
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| 98 | int alen;
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| 99 | char *(*print) (unsigned char *);
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| 100 | char *(*sprint) (struct sockaddr *, int numeric);
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| 101 | int (*input) (int type, char *bufp, struct sockaddr *);
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| 102 | void (*herror) (char *text);
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| 103 | int (*rprint) (int options);
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| 104 | int (*rinput) (int typ, int ext, char **argv);
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| 105 |
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| 106 | /* may modify src */
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| 107 | int (*getmask) (char *src, struct sockaddr * mask, char *name);
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| 108 |
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| 109 | int fd;
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| 110 | char *flag_file;
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| 111 | };
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| 112 |
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| 113 | /* Display an Internet socket address. */
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| 114 | static char *INET_sprint(struct sockaddr *sap, int numeric)
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| 115 | {
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| 116 | static char buff[128];
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| 117 |
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| 118 | if (sap->sa_family == 0xFFFF || sap->sa_family == 0)
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| 119 | return safe_strncpy(buff, "[NONE SET]", sizeof(buff));
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| 120 |
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| 121 | if (INET_rresolve(buff, sizeof(buff), (struct sockaddr_in *) sap,
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| 122 | numeric, 0xffffff00) != 0)
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| 123 | return (NULL);
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| 124 |
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| 125 | return (buff);
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| 126 | }
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| 127 |
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| 128 | static struct aftype inet_aftype = {
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| 129 | .name = "inet",
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| 130 | .title = "DARPA Internet",
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| 131 | .af = AF_INET,
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| 132 | .alen = 4,
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| 133 | .sprint = INET_sprint,
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| 134 | .fd = -1
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| 135 | };
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| 136 |
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| 137 | #if HAVE_AFINET6
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| 138 |
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| 139 | /* Display an Internet socket address. */
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| 140 | /* dirty! struct sockaddr usually doesn't suffer for inet6 addresses, fst. */
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| 141 | static char *INET6_sprint(struct sockaddr *sap, int numeric)
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| 142 | {
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| 143 | static char buff[128];
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| 144 |
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| 145 | if (sap->sa_family == 0xFFFF || sap->sa_family == 0)
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| 146 | return safe_strncpy(buff, "[NONE SET]", sizeof(buff));
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| 147 | if (INET6_rresolve
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| 148 | (buff, sizeof(buff), (struct sockaddr_in6 *) sap, numeric) != 0)
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| 149 | return safe_strncpy(buff, "[UNKNOWN]", sizeof(buff));
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| 150 | return (buff);
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| 151 | }
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| 152 |
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| 153 | static struct aftype inet6_aftype = {
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| 154 | .name = "inet6",
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| 155 | .title = "IPv6",
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| 156 | .af = AF_INET6,
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| 157 | .alen = sizeof(struct in6_addr),
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| 158 | .sprint = INET6_sprint,
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| 159 | .fd = -1
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| 160 | };
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| 161 |
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| 162 | #endif /* HAVE_AFINET6 */
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| 163 |
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| 164 | /* Display an UNSPEC address. */
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| 165 | static char *UNSPEC_print(unsigned char *ptr)
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| 166 | {
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| 167 | static char buff[sizeof(struct sockaddr) * 3 + 1];
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| 168 | char *pos;
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| 169 | unsigned int i;
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| 170 |
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| 171 | pos = buff;
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| 172 | for (i = 0; i < sizeof(struct sockaddr); i++) {
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| 173 | /* careful -- not every libc's sprintf returns # bytes written */
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| 174 | sprintf(pos, "%02X-", (*ptr++ & 0377));
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| 175 | pos += 3;
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| 176 | }
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| 177 | /* Erase trailing "-". Works as long as sizeof(struct sockaddr) != 0 */
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| 178 | *--pos = '\0';
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| 179 | return (buff);
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| 180 | }
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| 181 |
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| 182 | /* Display an UNSPEC socket address. */
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| 183 | static char *UNSPEC_sprint(struct sockaddr *sap, int numeric)
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| 184 | {
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| 185 | static char buf[64];
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| 186 |
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| 187 | if (sap->sa_family == 0xFFFF || sap->sa_family == 0)
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| 188 | return safe_strncpy(buf, "[NONE SET]", sizeof(buf));
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| 189 | return (UNSPEC_print((unsigned char *)sap->sa_data));
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| 190 | }
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| 191 |
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| 192 | static struct aftype unspec_aftype = {
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| 193 | "unspec", "UNSPEC", AF_UNSPEC, 0,
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| 194 | UNSPEC_print, UNSPEC_sprint, NULL, NULL,
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| 195 | NULL,
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| 196 | };
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| 197 |
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| 198 | static struct aftype * const aftypes[] = {
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| 199 | &inet_aftype,
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| 200 | #if HAVE_AFINET6
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| 201 | &inet6_aftype,
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| 202 | #endif
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| 203 | &unspec_aftype,
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| 204 | NULL
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| 205 | };
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| 206 |
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| 207 | /* Check our protocol family table for this family. */
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| 208 | static struct aftype *get_afntype(int af)
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| 209 | {
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| 210 | struct aftype * const *afp;
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| 211 |
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| 212 | afp = aftypes;
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| 213 | while (*afp != NULL) {
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| 214 | if ((*afp)->af == af)
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| 215 | return (*afp);
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| 216 | afp++;
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| 217 | }
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| 218 | return (NULL);
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| 219 | }
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| 220 |
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| 221 | /* Check our protocol family table for this family and return its socket */
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| 222 | static int get_socket_for_af(int af)
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| 223 | {
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| 224 | struct aftype * const *afp;
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| 225 |
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| 226 | afp = aftypes;
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| 227 | while (*afp != NULL) {
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| 228 | if ((*afp)->af == af)
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| 229 | return (*afp)->fd;
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| 230 | afp++;
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| 231 | }
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| 232 | return -1;
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| 233 | }
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| 234 |
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| 235 | struct user_net_device_stats {
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| 236 | unsigned long long rx_packets; /* total packets received */
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| 237 | unsigned long long tx_packets; /* total packets transmitted */
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| 238 | unsigned long long rx_bytes; /* total bytes received */
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| 239 | unsigned long long tx_bytes; /* total bytes transmitted */
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| 240 | unsigned long rx_errors; /* bad packets received */
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| 241 | unsigned long tx_errors; /* packet transmit problems */
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| 242 | unsigned long rx_dropped; /* no space in linux buffers */
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| 243 | unsigned long tx_dropped; /* no space available in linux */
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| 244 | unsigned long rx_multicast; /* multicast packets received */
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| 245 | unsigned long rx_compressed;
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| 246 | unsigned long tx_compressed;
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| 247 | unsigned long collisions;
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| 248 |
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| 249 | /* detailed rx_errors: */
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| 250 | unsigned long rx_length_errors;
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| 251 | unsigned long rx_over_errors; /* receiver ring buff overflow */
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| 252 | unsigned long rx_crc_errors; /* recved pkt with crc error */
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| 253 | unsigned long rx_frame_errors; /* recv'd frame alignment error */
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| 254 | unsigned long rx_fifo_errors; /* recv'r fifo overrun */
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| 255 | unsigned long rx_missed_errors; /* receiver missed packet */
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| 256 | /* detailed tx_errors */
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| 257 | unsigned long tx_aborted_errors;
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| 258 | unsigned long tx_carrier_errors;
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| 259 | unsigned long tx_fifo_errors;
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| 260 | unsigned long tx_heartbeat_errors;
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| 261 | unsigned long tx_window_errors;
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| 262 | };
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| 263 |
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| 264 | struct interface {
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| 265 | struct interface *next, *prev;
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| 266 | char name[IFNAMSIZ]; /* interface name */
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| 267 | short type; /* if type */
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| 268 | short flags; /* various flags */
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| 269 | int metric; /* routing metric */
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| 270 | int mtu; /* MTU value */
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| 271 | int tx_queue_len; /* transmit queue length */
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| 272 | struct ifmap map; /* hardware setup */
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| 273 | struct sockaddr addr; /* IP address */
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| 274 | struct sockaddr dstaddr; /* P-P IP address */
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| 275 | struct sockaddr broadaddr; /* IP broadcast address */
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| 276 | struct sockaddr netmask; /* IP network mask */
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| 277 | int has_ip;
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| 278 | char hwaddr[32]; /* HW address */
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| 279 | int statistics_valid;
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| 280 | struct user_net_device_stats stats; /* statistics */
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| 281 | int keepalive; /* keepalive value for SLIP */
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| 282 | int outfill; /* outfill value for SLIP */
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| 283 | };
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| 284 |
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| 285 |
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| 286 | int interface_opt_a = 0; /* show all interfaces */
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| 287 |
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| 288 | static struct interface *int_list, *int_last;
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| 289 | static int skfd = -1; /* generic raw socket desc. */
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| 290 |
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| 291 |
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| 292 | static int sockets_open(int family)
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| 293 | {
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| 294 | struct aftype * const *aft;
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| 295 | int sfd = -1;
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| 296 | static int force = -1;
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| 297 |
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| 298 | if (force < 0) {
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| 299 | force = 0;
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| 300 | if (get_linux_version_code() < KERNEL_VERSION(2,1,0))
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| 301 | force = 1;
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| 302 | if (access("/proc/net", R_OK))
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| 303 | force = 1;
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| 304 | }
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| 305 | for (aft = aftypes; *aft; aft++) {
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| 306 | struct aftype *af = *aft;
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| 307 | int type = SOCK_DGRAM;
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| 308 |
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| 309 | if (af->af == AF_UNSPEC)
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| 310 | continue;
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| 311 | if (family && family != af->af)
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| 312 | continue;
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| 313 | if (af->fd != -1) {
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| 314 | sfd = af->fd;
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| 315 | continue;
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| 316 | }
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| 317 | /* Check some /proc file first to not stress kmod */
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| 318 | if (!family && !force && af->flag_file) {
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| 319 | if (access(af->flag_file, R_OK))
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| 320 | continue;
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| 321 | }
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| 322 | af->fd = socket(af->af, type, 0);
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| 323 | if (af->fd >= 0)
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| 324 | sfd = af->fd;
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| 325 | }
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| 326 | if (sfd < 0) {
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| 327 | bb_error_msg("No usable address families found.");
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| 328 | }
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| 329 | return sfd;
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| 330 | }
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| 331 |
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| 332 | #ifdef CONFIG_FEATURE_CLEAN_UP
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| 333 | static void sockets_close(void)
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| 334 | {
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| 335 | struct aftype * const *aft;
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| 336 | for (aft = aftypes; *aft != NULL; aft++) {
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| 337 | struct aftype *af = *aft;
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| 338 | if( af->fd != -1 ) {
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| 339 | close(af->fd);
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| 340 | af->fd = -1;
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| 341 | }
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| 342 | }
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| 343 | }
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| 344 | #endif
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| 345 |
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| 346 | /* like strcmp(), but knows about numbers */
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| 347 | static int nstrcmp(const char *a, const char *b)
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| 348 | {
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| 349 | const char *a_ptr = a;
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| 350 | const char *b_ptr = b;
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| 351 |
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| 352 | while (*a == *b) {
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| 353 | if (*a == '\0') {
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| 354 | return 0;
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| 355 | }
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| 356 | if (!isdigit(*a) && isdigit(*(a+1))) {
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| 357 | a_ptr = a+1;
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| 358 | b_ptr = b+1;
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| 359 | }
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| 360 | a++;
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| 361 | b++;
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| 362 | }
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| 363 |
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| 364 | if (isdigit(*a) && isdigit(*b)) {
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| 365 | return atoi(a_ptr) > atoi(b_ptr) ? 1 : -1;
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| 366 | }
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| 367 | return *a - *b;
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| 368 | }
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| 369 |
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| 370 | static struct interface *add_interface(char *name)
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| 371 | {
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| 372 | struct interface *ife, **nextp, *new;
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| 373 |
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| 374 | for (ife = int_last; ife; ife = ife->prev) {
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| 375 | int n = nstrcmp(ife->name, name);
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| 376 |
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| 377 | if (n == 0)
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| 378 | return ife;
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| 379 | if (n < 0)
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| 380 | break;
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| 381 | }
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| 382 |
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| 383 | new = xzalloc(sizeof(*new));
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| 384 | safe_strncpy(new->name, name, IFNAMSIZ);
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| 385 | nextp = ife ? &ife->next : &int_list;
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| 386 | new->prev = ife;
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| 387 | new->next = *nextp;
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| 388 | if (new->next)
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| 389 | new->next->prev = new;
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| 390 | else
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| 391 | int_last = new;
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| 392 | *nextp = new;
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| 393 | return new;
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| 394 | }
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| 395 |
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| 396 |
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| 397 | static int if_readconf(void)
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| 398 | {
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| 399 | int numreqs = 30;
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| 400 | struct ifconf ifc;
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| 401 | struct ifreq *ifr;
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| 402 | int n, err = -1;
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| 403 | int skfd2;
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| 404 |
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| 405 | /* SIOCGIFCONF currently seems to only work properly on AF_INET sockets
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| 406 | (as of 2.1.128) */
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| 407 | skfd2 = get_socket_for_af(AF_INET);
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| 408 | if (skfd2 < 0) {
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| 409 | bb_perror_msg(("warning: no inet socket available"));
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| 410 | /* Try to soldier on with whatever socket we can get hold of. */
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| 411 | skfd2 = sockets_open(0);
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| 412 | if (skfd2 < 0)
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| 413 | return -1;
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| 414 | }
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| 415 |
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| 416 | ifc.ifc_buf = NULL;
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| 417 | for (;;) {
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| 418 | ifc.ifc_len = sizeof(struct ifreq) * numreqs;
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| 419 | ifc.ifc_buf = xrealloc(ifc.ifc_buf, ifc.ifc_len);
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| 420 |
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| 421 | if (ioctl(skfd2, SIOCGIFCONF, &ifc) < 0) {
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| 422 | perror("SIOCGIFCONF");
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| 423 | goto out;
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| 424 | }
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| 425 | if (ifc.ifc_len == sizeof(struct ifreq) * numreqs) {
|
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| 426 | /* assume it overflowed and try again */
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| 427 | numreqs += 10;
|
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| 428 | continue;
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| 429 | }
|
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| 430 | break;
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| 431 | }
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| 432 |
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| 433 | ifr = ifc.ifc_req;
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| 434 | for (n = 0; n < ifc.ifc_len; n += sizeof(struct ifreq)) {
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| 435 | add_interface(ifr->ifr_name);
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| 436 | ifr++;
|
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| 437 | }
|
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| 438 | err = 0;
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| 439 |
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| 440 | out:
|
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| 441 | free(ifc.ifc_buf);
|
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| 442 | return err;
|
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| 443 | }
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| 444 |
|
---|
| 445 | static char *get_name(char *name, char *p)
|
---|
| 446 | {
|
---|
| 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]))
|
---|
| 452 | namestart++;
|
---|
| 453 | nameend=namestart;
|
---|
| 454 | while (p[nameend] && p[nameend]!=':' && !isspace(p[nameend]))
|
---|
| 455 | nameend++;
|
---|
| 456 | if (p[nameend]==':') {
|
---|
| 457 | if ((nameend-namestart)<IFNAMSIZ) {
|
---|
| 458 | memcpy(name,&p[namestart],nameend-namestart);
|
---|
| 459 | name[nameend-namestart]='\0';
|
---|
| 460 | p=&p[nameend];
|
---|
| 461 | } else {
|
---|
| 462 | /* Interface name too large */
|
---|
| 463 | name[0]='\0';
|
---|
| 464 | }
|
---|
| 465 | } else {
|
---|
| 466 | /* trailing ':' not found - return empty */
|
---|
| 467 | name[0]='\0';
|
---|
| 468 | }
|
---|
| 469 | return p + 1;
|
---|
| 470 | }
|
---|
| 471 |
|
---|
| 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
|
---|
| 477 | * args. */
|
---|
| 478 |
|
---|
| 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" */
|
---|
| 483 | /* }; */
|
---|
| 484 |
|
---|
| 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"
|
---|
| 491 | };
|
---|
| 492 | #else
|
---|
| 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"
|
---|
| 497 | };
|
---|
| 498 |
|
---|
| 499 | #endif
|
---|
| 500 |
|
---|
| 501 | static void get_dev_fields(char *bp, struct interface *ife, int procnetdev_vsn)
|
---|
| 502 | {
|
---|
| 503 | memset(&ife->stats, 0, sizeof(struct user_net_device_stats));
|
---|
| 504 |
|
---|
| 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 */
|
---|
| 522 | );
|
---|
| 523 |
|
---|
| 524 | if (procnetdev_vsn <= 1) {
|
---|
| 525 | if (procnetdev_vsn == 0) {
|
---|
| 526 | ife->stats.rx_bytes = 0;
|
---|
| 527 | ife->stats.tx_bytes = 0;
|
---|
| 528 | }
|
---|
| 529 | ife->stats.rx_multicast = 0;
|
---|
| 530 | ife->stats.rx_compressed = 0;
|
---|
| 531 | ife->stats.tx_compressed = 0;
|
---|
| 532 | }
|
---|
| 533 | }
|
---|
| 534 |
|
---|
| 535 | static inline int procnetdev_version(char *buf)
|
---|
| 536 | {
|
---|
| 537 | if (strstr(buf, "compressed"))
|
---|
| 538 | return 2;
|
---|
| 539 | if (strstr(buf, "bytes"))
|
---|
| 540 | return 1;
|
---|
| 541 | return 0;
|
---|
| 542 | }
|
---|
| 543 |
|
---|
| 544 | static int if_readlist_proc(char *target)
|
---|
| 545 | {
|
---|
| 546 | static int proc_read;
|
---|
| 547 | FILE *fh;
|
---|
| 548 | char buf[512];
|
---|
| 549 | struct interface *ife;
|
---|
| 550 | int err, procnetdev_vsn;
|
---|
| 551 |
|
---|
| 552 | if (proc_read)
|
---|
| 553 | return 0;
|
---|
| 554 | if (!target)
|
---|
| 555 | proc_read = 1;
|
---|
| 556 |
|
---|
| 557 | fh = fopen(_PATH_PROCNET_DEV, "r");
|
---|
| 558 | if (!fh) {
|
---|
| 559 | bb_perror_msg("Warning: cannot open %s. Limited output.", _PATH_PROCNET_DEV);
|
---|
| 560 | return if_readconf();
|
---|
| 561 | }
|
---|
| 562 | fgets(buf, sizeof buf, fh); /* eat line */
|
---|
| 563 | fgets(buf, sizeof buf, fh);
|
---|
| 564 |
|
---|
| 565 | procnetdev_vsn = procnetdev_version(buf);
|
---|
| 566 |
|
---|
| 567 | err = 0;
|
---|
| 568 | while (fgets(buf, sizeof buf, fh)) {
|
---|
| 569 | char *s, name[128];
|
---|
| 570 |
|
---|
| 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))
|
---|
| 576 | break;
|
---|
| 577 | }
|
---|
| 578 | if (ferror(fh)) {
|
---|
| 579 | perror(_PATH_PROCNET_DEV);
|
---|
| 580 | err = -1;
|
---|
| 581 | proc_read = 0;
|
---|
| 582 | }
|
---|
| 583 | fclose(fh);
|
---|
| 584 | return err;
|
---|
| 585 | }
|
---|
| 586 |
|
---|
| 587 | static int if_readlist(void)
|
---|
| 588 | {
|
---|
| 589 | int err = if_readlist_proc(NULL);
|
---|
| 590 |
|
---|
| 591 | if (!err)
|
---|
| 592 | err = if_readconf();
|
---|
| 593 | return err;
|
---|
| 594 | }
|
---|
| 595 |
|
---|
| 596 | static int for_all_interfaces(int (*doit) (struct interface *, void *),
|
---|
| 597 | void *cookie)
|
---|
| 598 | {
|
---|
| 599 | struct interface *ife;
|
---|
| 600 |
|
---|
| 601 | if (!int_list && (if_readlist() < 0))
|
---|
| 602 | return -1;
|
---|
| 603 | for (ife = int_list; ife; ife = ife->next) {
|
---|
| 604 | int err = doit(ife, cookie);
|
---|
| 605 |
|
---|
| 606 | if (err)
|
---|
| 607 | return err;
|
---|
| 608 | }
|
---|
| 609 | return 0;
|
---|
| 610 | }
|
---|
| 611 |
|
---|
| 612 | /* Fetch the interface configuration from the kernel. */
|
---|
| 613 | static int if_fetch(struct interface *ife)
|
---|
| 614 | {
|
---|
| 615 | struct ifreq ifr;
|
---|
| 616 | int fd;
|
---|
| 617 | char *ifname = ife->name;
|
---|
| 618 |
|
---|
| 619 | strcpy(ifr.ifr_name, ifname);
|
---|
| 620 | if (ioctl(skfd, SIOCGIFFLAGS, &ifr) < 0)
|
---|
| 621 | return (-1);
|
---|
| 622 | ife->flags = ifr.ifr_flags;
|
---|
| 623 |
|
---|
| 624 | strcpy(ifr.ifr_name, ifname);
|
---|
| 625 | if (ioctl(skfd, SIOCGIFHWADDR, &ifr) < 0)
|
---|
| 626 | memset(ife->hwaddr, 0, 32);
|
---|
| 627 | else
|
---|
| 628 | memcpy(ife->hwaddr, ifr.ifr_hwaddr.sa_data, 8);
|
---|
| 629 |
|
---|
| 630 | ife->type = ifr.ifr_hwaddr.sa_family;
|
---|
| 631 |
|
---|
| 632 | strcpy(ifr.ifr_name, ifname);
|
---|
| 633 | if (ioctl(skfd, SIOCGIFMETRIC, &ifr) < 0)
|
---|
| 634 | ife->metric = 0;
|
---|
| 635 | else
|
---|
| 636 | ife->metric = ifr.ifr_metric;
|
---|
| 637 |
|
---|
| 638 | strcpy(ifr.ifr_name, ifname);
|
---|
| 639 | if (ioctl(skfd, SIOCGIFMTU, &ifr) < 0)
|
---|
| 640 | ife->mtu = 0;
|
---|
| 641 | else
|
---|
| 642 | ife->mtu = ifr.ifr_mtu;
|
---|
| 643 |
|
---|
| 644 | #ifdef SIOCGIFMAP
|
---|
| 645 | strcpy(ifr.ifr_name, ifname);
|
---|
| 646 | if (ioctl(skfd, SIOCGIFMAP, &ifr) == 0)
|
---|
| 647 | ife->map = ifr.ifr_map;
|
---|
| 648 | else
|
---|
| 649 | #endif
|
---|
| 650 | memset(&ife->map, 0, sizeof(struct ifmap));
|
---|
| 651 |
|
---|
| 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 */
|
---|
| 656 | else
|
---|
| 657 | ife->tx_queue_len = ifr.ifr_qlen;
|
---|
| 658 | #else
|
---|
| 659 | ife->tx_queue_len = -1; /* unknown value */
|
---|
| 660 | #endif
|
---|
| 661 |
|
---|
| 662 | /* IPv4 address? */
|
---|
| 663 | fd = get_socket_for_af(AF_INET);
|
---|
| 664 | if (fd >= 0) {
|
---|
| 665 | strcpy(ifr.ifr_name, ifname);
|
---|
| 666 | ifr.ifr_addr.sa_family = AF_INET;
|
---|
| 667 | if (ioctl(fd, SIOCGIFADDR, &ifr) == 0) {
|
---|
| 668 | ife->has_ip = 1;
|
---|
| 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));
|
---|
| 673 | else
|
---|
| 674 | ife->dstaddr = ifr.ifr_dstaddr;
|
---|
| 675 |
|
---|
| 676 | strcpy(ifr.ifr_name, ifname);
|
---|
| 677 | if (ioctl(fd, SIOCGIFBRDADDR, &ifr) < 0)
|
---|
| 678 | memset(&ife->broadaddr, 0, sizeof(struct sockaddr));
|
---|
| 679 | else
|
---|
| 680 | ife->broadaddr = ifr.ifr_broadaddr;
|
---|
| 681 |
|
---|
| 682 | strcpy(ifr.ifr_name, ifname);
|
---|
| 683 | if (ioctl(fd, SIOCGIFNETMASK, &ifr) < 0)
|
---|
| 684 | memset(&ife->netmask, 0, sizeof(struct sockaddr));
|
---|
| 685 | else
|
---|
| 686 | ife->netmask = ifr.ifr_netmask;
|
---|
| 687 | } else
|
---|
| 688 | memset(&ife->addr, 0, sizeof(struct sockaddr));
|
---|
| 689 | }
|
---|
| 690 |
|
---|
| 691 | return 0;
|
---|
| 692 | }
|
---|
| 693 |
|
---|
| 694 |
|
---|
| 695 | static int do_if_fetch(struct interface *ife)
|
---|
| 696 | {
|
---|
| 697 | if (if_fetch(ife) < 0) {
|
---|
| 698 | char *errmsg;
|
---|
| 699 |
|
---|
| 700 | if (errno == ENODEV) {
|
---|
| 701 | /* Give better error message for this case. */
|
---|
| 702 | errmsg = "Device not found";
|
---|
| 703 | } else {
|
---|
| 704 | errmsg = strerror(errno);
|
---|
| 705 | }
|
---|
| 706 | bb_error_msg("%s: error fetching interface information: %s",
|
---|
| 707 | ife->name, errmsg);
|
---|
| 708 | return -1;
|
---|
| 709 | }
|
---|
| 710 | return 0;
|
---|
| 711 | }
|
---|
| 712 |
|
---|
| 713 | /* This structure defines hardware protocols and their handlers. */
|
---|
| 714 | struct hwtype {
|
---|
| 715 | const char * const name;
|
---|
| 716 | const char *title;
|
---|
| 717 | int type;
|
---|
| 718 | int alen;
|
---|
| 719 | char *(*print) (unsigned char *);
|
---|
| 720 | int (*input) (char *, struct sockaddr *);
|
---|
| 721 | int (*activate) (int fd);
|
---|
| 722 | int suppress_null_addr;
|
---|
| 723 | };
|
---|
| 724 |
|
---|
| 725 | static const struct hwtype unspec_hwtype = {
|
---|
| 726 | .name = "unspec",
|
---|
| 727 | .title = "UNSPEC",
|
---|
| 728 | .type = -1,
|
---|
| 729 | .print = UNSPEC_print
|
---|
| 730 | };
|
---|
| 731 |
|
---|
| 732 | static const struct hwtype loop_hwtype = {
|
---|
| 733 | .name = "loop",
|
---|
| 734 | .title = "Local Loopback",
|
---|
| 735 | .type = ARPHRD_LOOPBACK
|
---|
| 736 | };
|
---|
| 737 |
|
---|
| 738 | #include <net/if_arp.h>
|
---|
| 739 |
|
---|
| 740 | #if (__GLIBC__ >=2 && __GLIBC_MINOR >= 1) || defined(_NEWLIB_VERSION)
|
---|
| 741 | #include <net/ethernet.h>
|
---|
| 742 | #else
|
---|
| 743 | #include <linux/if_ether.h>
|
---|
| 744 | #endif
|
---|
| 745 |
|
---|
| 746 | /* Display an Ethernet address in readable format. */
|
---|
| 747 | static char *pr_ether(unsigned char *ptr)
|
---|
| 748 | {
|
---|
| 749 | static char buff[64];
|
---|
| 750 |
|
---|
| 751 | snprintf(buff, sizeof(buff), "%02X:%02X:%02X:%02X:%02X:%02X",
|
---|
| 752 | (ptr[0] & 0377), (ptr[1] & 0377), (ptr[2] & 0377),
|
---|
| 753 | (ptr[3] & 0377), (ptr[4] & 0377), (ptr[5] & 0377)
|
---|
| 754 | );
|
---|
| 755 | return (buff);
|
---|
| 756 | }
|
---|
| 757 |
|
---|
| 758 | static const struct hwtype ether_hwtype = {
|
---|
| 759 | .name = "ether",
|
---|
| 760 | .title = "Ethernet",
|
---|
| 761 | .type = ARPHRD_ETHER,
|
---|
| 762 | .alen = ETH_ALEN,
|
---|
| 763 | .print = pr_ether
|
---|
| 764 | };
|
---|
| 765 |
|
---|
| 766 | #include <net/if_arp.h>
|
---|
| 767 |
|
---|
| 768 | static const struct hwtype ppp_hwtype = {
|
---|
| 769 | .name = "ppp",
|
---|
| 770 | .title = "Point-to-Point Protocol",
|
---|
| 771 | .type = ARPHRD_PPP
|
---|
| 772 | };
|
---|
| 773 |
|
---|
| 774 | #ifdef CONFIG_FEATURE_IPV6
|
---|
| 775 | static const struct hwtype sit_hwtype = {
|
---|
| 776 | .name = "sit",
|
---|
| 777 | .title = "IPv6-in-IPv4",
|
---|
| 778 | .type = ARPHRD_SIT,
|
---|
| 779 | .print = UNSPEC_print,
|
---|
| 780 | .suppress_null_addr = 1
|
---|
| 781 | } ;
|
---|
| 782 | #endif
|
---|
| 783 |
|
---|
| 784 | static const struct hwtype * const hwtypes[] = {
|
---|
| 785 | &loop_hwtype,
|
---|
| 786 | ðer_hwtype,
|
---|
| 787 | &ppp_hwtype,
|
---|
| 788 | &unspec_hwtype,
|
---|
| 789 | #ifdef CONFIG_FEATURE_IPV6
|
---|
| 790 | &sit_hwtype,
|
---|
| 791 | #endif
|
---|
| 792 | NULL
|
---|
| 793 | };
|
---|
| 794 |
|
---|
| 795 | #ifdef IFF_PORTSEL
|
---|
| 796 | static const char * const if_port_text[] = {
|
---|
| 797 | /* Keep in step with <linux/netdevice.h> */
|
---|
| 798 | "unknown",
|
---|
| 799 | "10base2",
|
---|
| 800 | "10baseT",
|
---|
| 801 | "AUI",
|
---|
| 802 | "100baseT",
|
---|
| 803 | "100baseTX",
|
---|
| 804 | "100baseFX",
|
---|
| 805 | NULL
|
---|
| 806 | };
|
---|
| 807 | #endif
|
---|
| 808 |
|
---|
| 809 | /* Check our hardware type table for this type. */
|
---|
| 810 | static const struct hwtype *get_hwntype(int type)
|
---|
| 811 | {
|
---|
| 812 | const struct hwtype * const *hwp;
|
---|
| 813 |
|
---|
| 814 | hwp = hwtypes;
|
---|
| 815 | while (*hwp != NULL) {
|
---|
| 816 | if ((*hwp)->type == type)
|
---|
| 817 | return (*hwp);
|
---|
| 818 | hwp++;
|
---|
| 819 | }
|
---|
| 820 | return (NULL);
|
---|
| 821 | }
|
---|
| 822 |
|
---|
| 823 | /* return 1 if address is all zeros */
|
---|
| 824 | static int hw_null_address(const struct hwtype *hw, void *ap)
|
---|
| 825 | {
|
---|
| 826 | unsigned int i;
|
---|
| 827 | unsigned char *address = (unsigned char *) ap;
|
---|
| 828 |
|
---|
| 829 | for (i = 0; i < hw->alen; i++)
|
---|
| 830 | if (address[i])
|
---|
| 831 | return 0;
|
---|
| 832 | return 1;
|
---|
| 833 | }
|
---|
| 834 |
|
---|
| 835 | static const char TRext[] = "\0\0\0Ki\0Mi\0Gi\0Ti";
|
---|
| 836 |
|
---|
| 837 | static void print_bytes_scaled(unsigned long long ull, const char *end)
|
---|
| 838 | {
|
---|
| 839 | unsigned long long int_part;
|
---|
| 840 | const char *ext;
|
---|
| 841 | unsigned int frac_part;
|
---|
| 842 | int i;
|
---|
| 843 |
|
---|
| 844 | frac_part = 0;
|
---|
| 845 | ext = TRext;
|
---|
| 846 | int_part = ull;
|
---|
| 847 | i = 4;
|
---|
| 848 | do {
|
---|
| 849 | if (int_part >= 1024) {
|
---|
| 850 | frac_part = ((((unsigned int) int_part) & (1024-1)) * 10) / 1024;
|
---|
| 851 | int_part /= 1024;
|
---|
| 852 | ext += 3; /* KiB, MiB, GiB, TiB */
|
---|
| 853 | }
|
---|
| 854 | --i;
|
---|
| 855 | } while (i);
|
---|
| 856 |
|
---|
| 857 | printf("X bytes:%llu (%llu.%u %sB)%s", ull, int_part, frac_part, ext, end);
|
---|
| 858 | }
|
---|
| 859 |
|
---|
| 860 | static const char * const ife_print_flags_strs[] = {
|
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| 861 | "UP ",
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| 862 | "BROADCAST ",
|
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| 863 | "DEBUG ",
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| 864 | "LOOPBACK ",
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| 865 | "POINTOPOINT ",
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| 866 | "NOTRAILERS ",
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| 867 | "RUNNING ",
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| 868 | "NOARP ",
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| 869 | "PROMISC ",
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| 870 | "ALLMULTI ",
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| 871 | "SLAVE ",
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| 872 | "MASTER ",
|
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| 873 | "MULTICAST ",
|
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| 874 | #ifdef HAVE_DYNAMIC
|
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| 875 | "DYNAMIC "
|
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| 876 | #endif
|
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| 877 | };
|
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| 878 |
|
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| 879 | static const unsigned short ife_print_flags_mask[] = {
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| 880 | IFF_UP,
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| 881 | IFF_BROADCAST,
|
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| 882 | IFF_DEBUG,
|
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| 883 | IFF_LOOPBACK,
|
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| 884 | IFF_POINTOPOINT,
|
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| 885 | IFF_NOTRAILERS,
|
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| 886 | IFF_RUNNING,
|
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| 887 | IFF_NOARP,
|
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| 888 | IFF_PROMISC,
|
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| 889 | IFF_ALLMULTI,
|
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| 890 | IFF_SLAVE,
|
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| 891 | IFF_MASTER,
|
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| 892 | IFF_MULTICAST,
|
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| 893 | #ifdef HAVE_DYNAMIC
|
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| 894 | IFF_DYNAMIC
|
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| 895 | #endif
|
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| 896 | 0
|
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| 897 | };
|
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| 898 |
|
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| 899 | static void ife_print(struct interface *ptr)
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| 900 | {
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| 901 | struct aftype *ap;
|
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| 902 | const struct hwtype *hw;
|
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| 903 | int hf;
|
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| 904 | int can_compress = 0;
|
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| 905 |
|
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| 906 | #if HAVE_AFINET6
|
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| 907 | FILE *f;
|
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| 908 | char addr6[40], devname[20];
|
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| 909 | struct sockaddr_in6 sap;
|
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| 910 | int plen, scope, dad_status, if_idx;
|
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| 911 | char addr6p[8][5];
|
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| 912 | #endif
|
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| 913 |
|
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| 914 | ap = get_afntype(ptr->addr.sa_family);
|
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| 915 | if (ap == NULL)
|
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| 916 | ap = get_afntype(0);
|
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| 917 |
|
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| 918 | hf = ptr->type;
|
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| 919 |
|
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| 920 | if (hf == ARPHRD_CSLIP || hf == ARPHRD_CSLIP6)
|
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| 921 | can_compress = 1;
|
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| 922 |
|
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| 923 | hw = get_hwntype(hf);
|
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| 924 | if (hw == NULL)
|
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| 925 | hw = get_hwntype(-1);
|
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| 926 |
|
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| 927 | printf("%-9.9s Link encap:%s ", ptr->name, hw->title);
|
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| 928 | /* For some hardware types (eg Ash, ATM) we don't print the
|
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| 929 | hardware address if it's null. */
|
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| 930 | if (hw->print != NULL && (!(hw_null_address(hw, ptr->hwaddr) &&
|
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| 931 | hw->suppress_null_addr)))
|
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| 932 | printf("HWaddr %s ", hw->print((unsigned char *)ptr->hwaddr));
|
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| 933 | #ifdef IFF_PORTSEL
|
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| 934 | if (ptr->flags & IFF_PORTSEL) {
|
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| 935 | printf("Media:%s", if_port_text[ptr->map.port] /* [0] */);
|
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| 936 | if (ptr->flags & IFF_AUTOMEDIA)
|
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| 937 | printf("(auto)");
|
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| 938 | }
|
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| 939 | #endif
|
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| 940 | printf("\n");
|
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| 941 |
|
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| 942 | if (ptr->has_ip) {
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| 943 | printf(" %s addr:%s ", ap->name,
|
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| 944 | ap->sprint(&ptr->addr, 1));
|
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| 945 | if (ptr->flags & IFF_POINTOPOINT) {
|
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| 946 | printf(" P-t-P:%s ", ap->sprint(&ptr->dstaddr, 1));
|
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| 947 | }
|
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| 948 | if (ptr->flags & IFF_BROADCAST) {
|
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| 949 | printf(" Bcast:%s ", ap->sprint(&ptr->broadaddr, 1));
|
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| 950 | }
|
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| 951 | printf(" Mask:%s\n", ap->sprint(&ptr->netmask, 1));
|
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| 952 | }
|
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| 953 |
|
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| 954 | #if HAVE_AFINET6
|
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| 955 |
|
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| 956 | #define IPV6_ADDR_ANY 0x0000U
|
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| 957 |
|
---|
| 958 | #define IPV6_ADDR_UNICAST 0x0001U
|
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| 959 | #define IPV6_ADDR_MULTICAST 0x0002U
|
---|
| 960 | #define IPV6_ADDR_ANYCAST 0x0004U
|
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| 961 |
|
---|
| 962 | #define IPV6_ADDR_LOOPBACK 0x0010U
|
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| 963 | #define IPV6_ADDR_LINKLOCAL 0x0020U
|
---|
| 964 | #define IPV6_ADDR_SITELOCAL 0x0040U
|
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| 965 |
|
---|
| 966 | #define IPV6_ADDR_COMPATv4 0x0080U
|
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| 967 |
|
---|
| 968 | #define IPV6_ADDR_SCOPE_MASK 0x00f0U
|
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| 969 |
|
---|
| 970 | #define IPV6_ADDR_MAPPED 0x1000U
|
---|
| 971 | #define IPV6_ADDR_RESERVED 0x2000U /* reserved address space */
|
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| 972 |
|
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| 973 | if ((f = fopen(_PATH_PROCNET_IFINET6, "r")) != NULL) {
|
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| 974 | while (fscanf
|
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| 975 | (f, "%4s%4s%4s%4s%4s%4s%4s%4s %02x %02x %02x %02x %20s\n",
|
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| 976 | addr6p[0], addr6p[1], addr6p[2], addr6p[3], addr6p[4],
|
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| 977 | addr6p[5], addr6p[6], addr6p[7], &if_idx, &plen, &scope,
|
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| 978 | &dad_status, devname) != EOF) {
|
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| 979 | if (!strcmp(devname, ptr->name)) {
|
---|
| 980 | sprintf(addr6, "%s:%s:%s:%s:%s:%s:%s:%s",
|
---|
| 981 | addr6p[0], addr6p[1], addr6p[2], addr6p[3],
|
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| 982 | addr6p[4], addr6p[5], addr6p[6], addr6p[7]);
|
---|
| 983 | inet_pton(AF_INET6, addr6,
|
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| 984 | (struct sockaddr *) &sap.sin6_addr);
|
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| 985 | sap.sin6_family = AF_INET6;
|
---|
| 986 | printf(" inet6 addr: %s/%d",
|
---|
| 987 | inet6_aftype.sprint((struct sockaddr *) &sap, 1),
|
---|
| 988 | plen);
|
---|
| 989 | printf(" Scope:");
|
---|
| 990 | switch (scope & IPV6_ADDR_SCOPE_MASK) {
|
---|
| 991 | case 0:
|
---|
| 992 | printf("Global");
|
---|
| 993 | break;
|
---|
| 994 | case IPV6_ADDR_LINKLOCAL:
|
---|
| 995 | printf("Link");
|
---|
| 996 | break;
|
---|
| 997 | case IPV6_ADDR_SITELOCAL:
|
---|
| 998 | printf("Site");
|
---|
| 999 | break;
|
---|
| 1000 | case IPV6_ADDR_COMPATv4:
|
---|
| 1001 | printf("Compat");
|
---|
| 1002 | break;
|
---|
| 1003 | case IPV6_ADDR_LOOPBACK:
|
---|
| 1004 | printf("Host");
|
---|
| 1005 | break;
|
---|
| 1006 | default:
|
---|
| 1007 | printf("Unknown");
|
---|
| 1008 | }
|
---|
| 1009 | printf("\n");
|
---|
| 1010 | }
|
---|
| 1011 | }
|
---|
| 1012 | fclose(f);
|
---|
| 1013 | }
|
---|
| 1014 | #endif
|
---|
| 1015 |
|
---|
| 1016 | printf(" ");
|
---|
| 1017 | /* DONT FORGET TO ADD THE FLAGS IN ife_print_short, too */
|
---|
| 1018 |
|
---|
| 1019 | if (ptr->flags == 0) {
|
---|
| 1020 | printf("[NO FLAGS] ");
|
---|
| 1021 | } else {
|
---|
| 1022 | int i = 0;
|
---|
| 1023 | do {
|
---|
| 1024 | if (ptr->flags & ife_print_flags_mask[i]) {
|
---|
| 1025 | printf(ife_print_flags_strs[i]);
|
---|
| 1026 | }
|
---|
| 1027 | } while (ife_print_flags_mask[++i]);
|
---|
| 1028 | }
|
---|
| 1029 |
|
---|
| 1030 | /* DONT FORGET TO ADD THE FLAGS IN ife_print_short */
|
---|
| 1031 | printf(" MTU:%d Metric:%d", ptr->mtu, ptr->metric ? ptr->metric : 1);
|
---|
| 1032 | #ifdef SIOCSKEEPALIVE
|
---|
| 1033 | if (ptr->outfill || ptr->keepalive)
|
---|
| 1034 | printf(" Outfill:%d Keepalive:%d", ptr->outfill, ptr->keepalive);
|
---|
| 1035 | #endif
|
---|
| 1036 | printf("\n");
|
---|
| 1037 |
|
---|
| 1038 | /* If needed, display the interface statistics. */
|
---|
| 1039 |
|
---|
| 1040 | if (ptr->statistics_valid) {
|
---|
| 1041 | /* XXX: statistics are currently only printed for the primary address,
|
---|
| 1042 | * not for the aliases, although strictly speaking they're shared
|
---|
| 1043 | * by all addresses.
|
---|
| 1044 | */
|
---|
| 1045 | printf(" ");
|
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| 1046 |
|
---|
| 1047 | printf("RX packets:%llu errors:%lu dropped:%lu overruns:%lu frame:%lu\n",
|
---|
| 1048 | ptr->stats.rx_packets, ptr->stats.rx_errors,
|
---|
| 1049 | ptr->stats.rx_dropped, ptr->stats.rx_fifo_errors,
|
---|
| 1050 | ptr->stats.rx_frame_errors);
|
---|
| 1051 | if (can_compress)
|
---|
| 1052 | printf(" compressed:%lu\n",
|
---|
| 1053 | ptr->stats.rx_compressed);
|
---|
| 1054 | printf(" ");
|
---|
| 1055 | printf("TX packets:%llu errors:%lu dropped:%lu overruns:%lu carrier:%lu\n",
|
---|
| 1056 | ptr->stats.tx_packets, ptr->stats.tx_errors,
|
---|
| 1057 | ptr->stats.tx_dropped, ptr->stats.tx_fifo_errors,
|
---|
| 1058 | ptr->stats.tx_carrier_errors);
|
---|
| 1059 | printf(" collisions:%lu ", ptr->stats.collisions);
|
---|
| 1060 | if (can_compress)
|
---|
| 1061 | printf("compressed:%lu ", ptr->stats.tx_compressed);
|
---|
| 1062 | if (ptr->tx_queue_len != -1)
|
---|
| 1063 | printf("txqueuelen:%d ", ptr->tx_queue_len);
|
---|
| 1064 | printf("\n R");
|
---|
| 1065 | print_bytes_scaled(ptr->stats.rx_bytes, " T");
|
---|
| 1066 | print_bytes_scaled(ptr->stats.tx_bytes, "\n");
|
---|
| 1067 |
|
---|
| 1068 | }
|
---|
| 1069 |
|
---|
| 1070 | if ((ptr->map.irq || ptr->map.mem_start || ptr->map.dma ||
|
---|
| 1071 | ptr->map.base_addr)) {
|
---|
| 1072 | printf(" ");
|
---|
| 1073 | if (ptr->map.irq)
|
---|
| 1074 | printf("Interrupt:%d ", ptr->map.irq);
|
---|
| 1075 | if (ptr->map.base_addr >= 0x100) /* Only print devices using it for
|
---|
| 1076 | I/O maps */
|
---|
| 1077 | printf("Base address:0x%lx ",
|
---|
| 1078 | (unsigned long) ptr->map.base_addr);
|
---|
| 1079 | if (ptr->map.mem_start) {
|
---|
| 1080 | printf("Memory:%lx-%lx ", ptr->map.mem_start,
|
---|
| 1081 | ptr->map.mem_end);
|
---|
| 1082 | }
|
---|
| 1083 | if (ptr->map.dma)
|
---|
| 1084 | printf("DMA chan:%x ", ptr->map.dma);
|
---|
| 1085 | printf("\n");
|
---|
| 1086 | }
|
---|
| 1087 | printf("\n");
|
---|
| 1088 | }
|
---|
| 1089 |
|
---|
| 1090 |
|
---|
| 1091 | static int do_if_print(struct interface *ife, void *cookie)
|
---|
| 1092 | {
|
---|
| 1093 | int *opt_a = (int *) cookie;
|
---|
| 1094 | int res;
|
---|
| 1095 |
|
---|
| 1096 | res = do_if_fetch(ife);
|
---|
| 1097 | if (res >= 0) {
|
---|
| 1098 | if ((ife->flags & IFF_UP) || *opt_a)
|
---|
| 1099 | ife_print(ife);
|
---|
| 1100 | }
|
---|
| 1101 | return res;
|
---|
| 1102 | }
|
---|
| 1103 |
|
---|
| 1104 | static struct interface *lookup_interface(char *name)
|
---|
| 1105 | {
|
---|
| 1106 | struct interface *ife = NULL;
|
---|
| 1107 |
|
---|
| 1108 | if (if_readlist_proc(name) < 0)
|
---|
| 1109 | return NULL;
|
---|
| 1110 | ife = add_interface(name);
|
---|
| 1111 | return ife;
|
---|
| 1112 | }
|
---|
| 1113 |
|
---|
| 1114 | /* for ipv4 add/del modes */
|
---|
| 1115 | static int if_print(char *ifname)
|
---|
| 1116 | {
|
---|
| 1117 | int res;
|
---|
| 1118 |
|
---|
| 1119 | if (!ifname) {
|
---|
| 1120 | res = for_all_interfaces(do_if_print, &interface_opt_a);
|
---|
| 1121 | } else {
|
---|
| 1122 | struct interface *ife;
|
---|
| 1123 |
|
---|
| 1124 | ife = lookup_interface(ifname);
|
---|
| 1125 | res = do_if_fetch(ife);
|
---|
| 1126 | if (res >= 0)
|
---|
| 1127 | ife_print(ife);
|
---|
| 1128 | }
|
---|
| 1129 | return res;
|
---|
| 1130 | }
|
---|
| 1131 |
|
---|
| 1132 | int display_interfaces(char *ifname);
|
---|
| 1133 | int display_interfaces(char *ifname)
|
---|
| 1134 | {
|
---|
| 1135 | int status;
|
---|
| 1136 |
|
---|
| 1137 | /* Create a channel to the NET kernel. */
|
---|
| 1138 | if ((skfd = sockets_open(0)) < 0) {
|
---|
| 1139 | bb_perror_msg_and_die("socket");
|
---|
| 1140 | }
|
---|
| 1141 |
|
---|
| 1142 | /* Do we have to show the current setup? */
|
---|
| 1143 | status = if_print(ifname);
|
---|
| 1144 | #ifdef CONFIG_FEATURE_CLEAN_UP
|
---|
| 1145 | sockets_close();
|
---|
| 1146 | #endif
|
---|
| 1147 | exit(status < 0);
|
---|
| 1148 | }
|
---|