[1765] | 1 | /* vi: set sw=4 ts=4: */
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[821] | 2 | /*
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| 3 | * stolen from net-tools-1.59 and stripped down for busybox by
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| 4 | * Erik Andersen <andersen@codepoet.org>
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| 5 | *
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| 6 | * Heavily modified by Manuel Novoa III Mar 12, 2001
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| 7 | *
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| 8 | * Added print_bytes_scaled function to reduce code size.
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| 9 | * Added some (potentially) missing defines.
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| 10 | * Improved display support for -a and for a named interface.
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| 11 | *
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| 12 | * -----------------------------------------------------------
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| 13 | *
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| 14 | * ifconfig This file contains an implementation of the command
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| 15 | * that either displays or sets the characteristics of
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| 16 | * one or more of the system's networking interfaces.
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| 17 | *
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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 <net/if.h>
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| 35 | #include <net/if_arp.h>
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[1765] | 36 | #include "inet_common.h"
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| 37 | #include "libbb.h"
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[821] | 38 |
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[1765] | 39 | #if ENABLE_FEATURE_IPV6
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[821] | 40 | # define HAVE_AFINET6 1
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| 41 | #else
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| 42 | # undef HAVE_AFINET6
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| 43 | #endif
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| 44 |
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| 45 | #define _PATH_PROCNET_DEV "/proc/net/dev"
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| 46 | #define _PATH_PROCNET_IFINET6 "/proc/net/if_inet6"
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| 47 |
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[1765] | 48 | #ifdef HAVE_AFINET6
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[821] | 49 |
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| 50 | #ifndef _LINUX_IN6_H
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| 51 | /*
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| 52 | * This is in linux/include/net/ipv6.h.
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| 53 | */
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| 54 |
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| 55 | struct in6_ifreq {
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| 56 | struct in6_addr ifr6_addr;
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| 57 | uint32_t ifr6_prefixlen;
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| 58 | unsigned int ifr6_ifindex;
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| 59 | };
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| 60 |
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| 61 | #endif
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| 62 |
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[1765] | 63 | #endif /* HAVE_AFINET6 */
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[821] | 64 |
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| 65 | /* Defines for glibc2.0 users. */
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| 66 | #ifndef SIOCSIFTXQLEN
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| 67 | #define SIOCSIFTXQLEN 0x8943
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| 68 | #define SIOCGIFTXQLEN 0x8942
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| 69 | #endif
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| 70 |
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| 71 | /* ifr_qlen is ifru_ivalue, but it isn't present in 2.0 kernel headers */
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| 72 | #ifndef ifr_qlen
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| 73 | #define ifr_qlen ifr_ifru.ifru_mtu
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| 74 | #endif
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| 75 |
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| 76 | #ifndef HAVE_TXQUEUELEN
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| 77 | #define HAVE_TXQUEUELEN 1
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| 78 | #endif
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| 79 |
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| 80 | #ifndef IFF_DYNAMIC
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| 81 | #define IFF_DYNAMIC 0x8000 /* dialup device with changing addresses */
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| 82 | #endif
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| 83 |
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| 84 | /* Display an Internet socket address. */
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[1765] | 85 | static const char *INET_sprint(struct sockaddr *sap, int numeric)
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[821] | 86 | {
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[1765] | 87 | static char *buff;
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[821] | 88 |
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[1765] | 89 | free(buff);
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[821] | 90 | if (sap->sa_family == 0xFFFF || sap->sa_family == 0)
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[1765] | 91 | return "[NONE SET]";
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| 92 | buff = INET_rresolve((struct sockaddr_in *) sap, numeric, 0xffffff00);
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| 93 | return buff;
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| 94 | }
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[821] | 95 |
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[1765] | 96 | #ifdef UNUSED_AND_BUGGY
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| 97 | static int INET_getsock(char *bufp, struct sockaddr *sap)
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| 98 | {
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| 99 | char *sp = bufp, *bp;
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| 100 | unsigned int i;
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| 101 | unsigned val;
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| 102 | struct sockaddr_in *sock_in;
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[821] | 103 |
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[1765] | 104 | sock_in = (struct sockaddr_in *) sap;
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| 105 | sock_in->sin_family = AF_INET;
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| 106 | sock_in->sin_port = 0;
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| 107 |
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| 108 | val = 0;
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| 109 | bp = (char *) &val;
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| 110 | for (i = 0; i < sizeof(sock_in->sin_addr.s_addr); i++) {
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| 111 | *sp = toupper(*sp);
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| 112 |
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| 113 | if ((unsigned)(*sp - 'A') <= 5)
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| 114 | bp[i] |= (int) (*sp - ('A' - 10));
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| 115 | else if (isdigit(*sp))
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| 116 | bp[i] |= (int) (*sp - '0');
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| 117 | else
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| 118 | return -1;
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| 119 |
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| 120 | bp[i] <<= 4;
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| 121 | sp++;
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| 122 | *sp = toupper(*sp);
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| 123 |
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| 124 | if ((unsigned)(*sp - 'A') <= 5)
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| 125 | bp[i] |= (int) (*sp - ('A' - 10));
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| 126 | else if (isdigit(*sp))
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| 127 | bp[i] |= (int) (*sp - '0');
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| 128 | else
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| 129 | return -1;
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| 130 |
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| 131 | sp++;
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| 132 | }
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| 133 | sock_in->sin_addr.s_addr = htonl(val);
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| 134 |
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| 135 | return (sp - bufp);
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[821] | 136 | }
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[1765] | 137 | #endif
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[821] | 138 |
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[1765] | 139 | static int INET_input(/*int type,*/ const char *bufp, struct sockaddr *sap)
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| 140 | {
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| 141 | return INET_resolve(bufp, (struct sockaddr_in *) sap, 0);
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| 142 | /*
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| 143 | switch (type) {
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| 144 | case 1:
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| 145 | return (INET_getsock(bufp, sap));
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| 146 | case 256:
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| 147 | return (INET_resolve(bufp, (struct sockaddr_in *) sap, 1));
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| 148 | default:
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| 149 | return (INET_resolve(bufp, (struct sockaddr_in *) sap, 0));
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| 150 | }
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| 151 | */
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| 152 | }
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| 153 |
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| 154 | static const struct aftype inet_aftype = {
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[821] | 155 | .name = "inet",
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| 156 | .title = "DARPA Internet",
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| 157 | .af = AF_INET,
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| 158 | .alen = 4,
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| 159 | .sprint = INET_sprint,
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[1765] | 160 | .input = INET_input,
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[821] | 161 | };
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| 162 |
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[1765] | 163 | #ifdef HAVE_AFINET6
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[821] | 164 |
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| 165 | /* Display an Internet socket address. */
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| 166 | /* dirty! struct sockaddr usually doesn't suffer for inet6 addresses, fst. */
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[1765] | 167 | static const char *INET6_sprint(struct sockaddr *sap, int numeric)
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[821] | 168 | {
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[1765] | 169 | static char *buff;
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[821] | 170 |
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[1765] | 171 | free(buff);
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[821] | 172 | if (sap->sa_family == 0xFFFF || sap->sa_family == 0)
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[1765] | 173 | return "[NONE SET]";
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| 174 | buff = INET6_rresolve((struct sockaddr_in6 *) sap, numeric);
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| 175 | return buff;
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[821] | 176 | }
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| 177 |
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[1765] | 178 | #ifdef UNUSED
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| 179 | static int INET6_getsock(char *bufp, struct sockaddr *sap)
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| 180 | {
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| 181 | struct sockaddr_in6 *sin6;
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| 182 |
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| 183 | sin6 = (struct sockaddr_in6 *) sap;
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| 184 | sin6->sin6_family = AF_INET6;
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| 185 | sin6->sin6_port = 0;
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| 186 |
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| 187 | if (inet_pton(AF_INET6, bufp, sin6->sin6_addr.s6_addr) <= 0)
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| 188 | return -1;
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| 189 |
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| 190 | return 16; /* ?;) */
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| 191 | }
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| 192 | #endif
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| 193 |
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| 194 | static int INET6_input(/*int type,*/ const char *bufp, struct sockaddr *sap)
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| 195 | {
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| 196 | return INET6_resolve(bufp, (struct sockaddr_in6 *) sap);
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| 197 | /*
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| 198 | switch (type) {
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| 199 | case 1:
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| 200 | return (INET6_getsock(bufp, sap));
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| 201 | default:
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| 202 | return (INET6_resolve(bufp, (struct sockaddr_in6 *) sap));
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| 203 | }
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| 204 | */
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| 205 | }
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| 206 |
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| 207 | static const struct aftype inet6_aftype = {
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[821] | 208 | .name = "inet6",
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| 209 | .title = "IPv6",
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| 210 | .af = AF_INET6,
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| 211 | .alen = sizeof(struct in6_addr),
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| 212 | .sprint = INET6_sprint,
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[1765] | 213 | .input = INET6_input,
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[821] | 214 | };
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| 215 |
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[1765] | 216 | #endif /* HAVE_AFINET6 */
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[821] | 217 |
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| 218 | /* Display an UNSPEC address. */
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| 219 | static char *UNSPEC_print(unsigned char *ptr)
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| 220 | {
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[1765] | 221 | static char *buff;
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| 222 |
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[821] | 223 | char *pos;
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| 224 | unsigned int i;
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| 225 |
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[1765] | 226 | if (!buff);
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| 227 | buff = xmalloc(sizeof(struct sockaddr) * 3 + 1);
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[821] | 228 | pos = buff;
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| 229 | for (i = 0; i < sizeof(struct sockaddr); i++) {
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| 230 | /* careful -- not every libc's sprintf returns # bytes written */
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| 231 | sprintf(pos, "%02X-", (*ptr++ & 0377));
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| 232 | pos += 3;
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| 233 | }
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| 234 | /* Erase trailing "-". Works as long as sizeof(struct sockaddr) != 0 */
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| 235 | *--pos = '\0';
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[1765] | 236 | return buff;
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[821] | 237 | }
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| 238 |
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| 239 | /* Display an UNSPEC socket address. */
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[1765] | 240 | static const char *UNSPEC_sprint(struct sockaddr *sap, int numeric)
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[821] | 241 | {
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| 242 | if (sap->sa_family == 0xFFFF || sap->sa_family == 0)
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[1765] | 243 | return "[NONE SET]";
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| 244 | return UNSPEC_print((unsigned char *)sap->sa_data);
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[821] | 245 | }
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| 246 |
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[1765] | 247 | static const struct aftype unspec_aftype = {
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| 248 | .name = "unspec",
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| 249 | .title = "UNSPEC",
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| 250 | .af = AF_UNSPEC,
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| 251 | .alen = 0,
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| 252 | .print = UNSPEC_print,
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| 253 | .sprint = UNSPEC_sprint,
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[821] | 254 | };
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| 255 |
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[1765] | 256 | static const struct aftype *const aftypes[] = {
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[821] | 257 | &inet_aftype,
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[1765] | 258 | #ifdef HAVE_AFINET6
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[821] | 259 | &inet6_aftype,
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| 260 | #endif
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| 261 | &unspec_aftype,
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| 262 | NULL
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| 263 | };
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| 264 |
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| 265 | /* Check our protocol family table for this family. */
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[1765] | 266 | const struct aftype *get_aftype(const char *name)
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[821] | 267 | {
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[1765] | 268 | const struct aftype *const *afp;
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[821] | 269 |
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| 270 | afp = aftypes;
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| 271 | while (*afp != NULL) {
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[1765] | 272 | if (!strcmp((*afp)->name, name))
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[821] | 273 | return (*afp);
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| 274 | afp++;
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| 275 | }
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[1765] | 276 | return NULL;
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[821] | 277 | }
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| 278 |
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[1765] | 279 | /* Check our protocol family table for this family. */
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| 280 | static const struct aftype *get_afntype(int af)
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[821] | 281 | {
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[1765] | 282 | const struct aftype *const *afp;
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[821] | 283 |
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| 284 | afp = aftypes;
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| 285 | while (*afp != NULL) {
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| 286 | if ((*afp)->af == af)
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[1765] | 287 | return *afp;
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[821] | 288 | afp++;
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| 289 | }
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[1765] | 290 | return NULL;
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[821] | 291 | }
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| 292 |
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| 293 | struct user_net_device_stats {
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| 294 | unsigned long long rx_packets; /* total packets received */
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| 295 | unsigned long long tx_packets; /* total packets transmitted */
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| 296 | unsigned long long rx_bytes; /* total bytes received */
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| 297 | unsigned long long tx_bytes; /* total bytes transmitted */
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| 298 | unsigned long rx_errors; /* bad packets received */
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| 299 | unsigned long tx_errors; /* packet transmit problems */
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| 300 | unsigned long rx_dropped; /* no space in linux buffers */
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| 301 | unsigned long tx_dropped; /* no space available in linux */
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| 302 | unsigned long rx_multicast; /* multicast packets received */
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| 303 | unsigned long rx_compressed;
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| 304 | unsigned long tx_compressed;
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| 305 | unsigned long collisions;
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| 306 |
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| 307 | /* detailed rx_errors: */
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| 308 | unsigned long rx_length_errors;
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| 309 | unsigned long rx_over_errors; /* receiver ring buff overflow */
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| 310 | unsigned long rx_crc_errors; /* recved pkt with crc error */
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| 311 | unsigned long rx_frame_errors; /* recv'd frame alignment error */
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| 312 | unsigned long rx_fifo_errors; /* recv'r fifo overrun */
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| 313 | unsigned long rx_missed_errors; /* receiver missed packet */
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| 314 | /* detailed tx_errors */
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| 315 | unsigned long tx_aborted_errors;
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| 316 | unsigned long tx_carrier_errors;
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| 317 | unsigned long tx_fifo_errors;
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| 318 | unsigned long tx_heartbeat_errors;
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| 319 | unsigned long tx_window_errors;
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| 320 | };
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| 321 |
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| 322 | struct interface {
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| 323 | struct interface *next, *prev;
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| 324 | char name[IFNAMSIZ]; /* interface name */
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| 325 | short type; /* if type */
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| 326 | short flags; /* various flags */
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| 327 | int metric; /* routing metric */
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| 328 | int mtu; /* MTU value */
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| 329 | int tx_queue_len; /* transmit queue length */
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| 330 | struct ifmap map; /* hardware setup */
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| 331 | struct sockaddr addr; /* IP address */
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| 332 | struct sockaddr dstaddr; /* P-P IP address */
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| 333 | struct sockaddr broadaddr; /* IP broadcast address */
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| 334 | struct sockaddr netmask; /* IP network mask */
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| 335 | int has_ip;
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| 336 | char hwaddr[32]; /* HW address */
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| 337 | int statistics_valid;
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| 338 | struct user_net_device_stats stats; /* statistics */
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| 339 | int keepalive; /* keepalive value for SLIP */
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| 340 | int outfill; /* outfill value for SLIP */
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| 341 | };
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| 342 |
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| 343 |
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[1765] | 344 | smallint interface_opt_a; /* show all interfaces */
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[821] | 345 |
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| 346 | static struct interface *int_list, *int_last;
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| 347 |
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| 348 |
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[1765] | 349 | #if 0
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[821] | 350 | /* like strcmp(), but knows about numbers */
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[1765] | 351 | except that the freshly added calls to xatoul() brf on ethernet aliases with
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| 352 | uClibc with e.g.: ife->name='lo' name='eth0:1'
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[821] | 353 | static int nstrcmp(const char *a, const char *b)
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| 354 | {
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| 355 | const char *a_ptr = a;
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| 356 | const char *b_ptr = b;
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| 357 |
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| 358 | while (*a == *b) {
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| 359 | if (*a == '\0') {
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| 360 | return 0;
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| 361 | }
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| 362 | if (!isdigit(*a) && isdigit(*(a+1))) {
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| 363 | a_ptr = a+1;
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| 364 | b_ptr = b+1;
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| 365 | }
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| 366 | a++;
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| 367 | b++;
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| 368 | }
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| 369 |
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| 370 | if (isdigit(*a) && isdigit(*b)) {
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[1765] | 371 | return xatoul(a_ptr) > xatoul(b_ptr) ? 1 : -1;
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[821] | 372 | }
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| 373 | return *a - *b;
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| 374 | }
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[1765] | 375 | #endif
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[821] | 376 |
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| 377 | static struct interface *add_interface(char *name)
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| 378 | {
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| 379 | struct interface *ife, **nextp, *new;
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| 380 |
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| 381 | for (ife = int_last; ife; ife = ife->prev) {
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[1765] | 382 | int n = /*n*/strcmp(ife->name, name);
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[821] | 383 |
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| 384 | if (n == 0)
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| 385 | return ife;
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| 386 | if (n < 0)
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| 387 | break;
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| 388 | }
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| 389 |
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| 390 | new = xzalloc(sizeof(*new));
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| 391 | safe_strncpy(new->name, name, IFNAMSIZ);
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| 392 | nextp = ife ? &ife->next : &int_list;
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| 393 | new->prev = ife;
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| 394 | new->next = *nextp;
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| 395 | if (new->next)
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| 396 | new->next->prev = new;
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| 397 | else
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| 398 | int_last = new;
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| 399 | *nextp = new;
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| 400 | return new;
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| 401 | }
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| 402 |
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| 403 | static char *get_name(char *name, char *p)
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| 404 | {
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| 405 | /* Extract <name> from nul-terminated p where p matches
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| 406 | <name>: after leading whitespace.
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| 407 | If match is not made, set name empty and return unchanged p */
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| 408 | int namestart=0, nameend=0;
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| 409 | while (isspace(p[namestart]))
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| 410 | namestart++;
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| 411 | nameend=namestart;
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| 412 | while (p[nameend] && p[nameend]!=':' && !isspace(p[nameend]))
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| 413 | nameend++;
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| 414 | if (p[nameend]==':') {
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| 415 | if ((nameend-namestart)<IFNAMSIZ) {
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| 416 | memcpy(name,&p[namestart],nameend-namestart);
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| 417 | name[nameend-namestart]='\0';
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| 418 | p=&p[nameend];
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| 419 | } else {
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| 420 | /* Interface name too large */
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| 421 | name[0]='\0';
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| 422 | }
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| 423 | } else {
|
---|
| 424 | /* trailing ':' not found - return empty */
|
---|
| 425 | name[0]='\0';
|
---|
| 426 | }
|
---|
| 427 | return p + 1;
|
---|
| 428 | }
|
---|
| 429 |
|
---|
| 430 | /* If scanf supports size qualifiers for %n conversions, then we can
|
---|
| 431 | * use a modified fmt that simply stores the position in the fields
|
---|
| 432 | * having no associated fields in the proc string. Of course, we need
|
---|
| 433 | * to zero them again when we're done. But that is smaller than the
|
---|
| 434 | * old approach of multiple scanf occurrences with large numbers of
|
---|
| 435 | * args. */
|
---|
| 436 |
|
---|
[1765] | 437 | /* static const char *const ss_fmt[] = { */
|
---|
[821] | 438 | /* "%lln%llu%lu%lu%lu%lu%ln%ln%lln%llu%lu%lu%lu%lu%lu", */
|
---|
| 439 | /* "%llu%llu%lu%lu%lu%lu%ln%ln%llu%llu%lu%lu%lu%lu%lu", */
|
---|
| 440 | /* "%llu%llu%lu%lu%lu%lu%lu%lu%llu%llu%lu%lu%lu%lu%lu%lu" */
|
---|
| 441 | /* }; */
|
---|
| 442 |
|
---|
| 443 | /* Lie about the size of the int pointed to for %n. */
|
---|
| 444 | #if INT_MAX == LONG_MAX
|
---|
[1765] | 445 | static const char *const ss_fmt[] = {
|
---|
[821] | 446 | "%n%llu%u%u%u%u%n%n%n%llu%u%u%u%u%u",
|
---|
| 447 | "%llu%llu%u%u%u%u%n%n%llu%llu%u%u%u%u%u",
|
---|
| 448 | "%llu%llu%u%u%u%u%u%u%llu%llu%u%u%u%u%u%u"
|
---|
| 449 | };
|
---|
| 450 | #else
|
---|
[1765] | 451 | static const char *const ss_fmt[] = {
|
---|
[821] | 452 | "%n%llu%lu%lu%lu%lu%n%n%n%llu%lu%lu%lu%lu%lu",
|
---|
| 453 | "%llu%llu%lu%lu%lu%lu%n%n%llu%llu%lu%lu%lu%lu%lu",
|
---|
| 454 | "%llu%llu%lu%lu%lu%lu%lu%lu%llu%llu%lu%lu%lu%lu%lu%lu"
|
---|
| 455 | };
|
---|
| 456 |
|
---|
| 457 | #endif
|
---|
| 458 |
|
---|
| 459 | static void get_dev_fields(char *bp, struct interface *ife, int procnetdev_vsn)
|
---|
| 460 | {
|
---|
| 461 | memset(&ife->stats, 0, sizeof(struct user_net_device_stats));
|
---|
| 462 |
|
---|
| 463 | sscanf(bp, ss_fmt[procnetdev_vsn],
|
---|
| 464 | &ife->stats.rx_bytes, /* missing for 0 */
|
---|
| 465 | &ife->stats.rx_packets,
|
---|
| 466 | &ife->stats.rx_errors,
|
---|
| 467 | &ife->stats.rx_dropped,
|
---|
| 468 | &ife->stats.rx_fifo_errors,
|
---|
| 469 | &ife->stats.rx_frame_errors,
|
---|
| 470 | &ife->stats.rx_compressed, /* missing for <= 1 */
|
---|
| 471 | &ife->stats.rx_multicast, /* missing for <= 1 */
|
---|
| 472 | &ife->stats.tx_bytes, /* missing for 0 */
|
---|
| 473 | &ife->stats.tx_packets,
|
---|
| 474 | &ife->stats.tx_errors,
|
---|
| 475 | &ife->stats.tx_dropped,
|
---|
| 476 | &ife->stats.tx_fifo_errors,
|
---|
| 477 | &ife->stats.collisions,
|
---|
| 478 | &ife->stats.tx_carrier_errors,
|
---|
| 479 | &ife->stats.tx_compressed /* missing for <= 1 */
|
---|
| 480 | );
|
---|
| 481 |
|
---|
| 482 | if (procnetdev_vsn <= 1) {
|
---|
| 483 | if (procnetdev_vsn == 0) {
|
---|
| 484 | ife->stats.rx_bytes = 0;
|
---|
| 485 | ife->stats.tx_bytes = 0;
|
---|
| 486 | }
|
---|
| 487 | ife->stats.rx_multicast = 0;
|
---|
| 488 | ife->stats.rx_compressed = 0;
|
---|
| 489 | ife->stats.tx_compressed = 0;
|
---|
| 490 | }
|
---|
| 491 | }
|
---|
| 492 |
|
---|
| 493 | static inline int procnetdev_version(char *buf)
|
---|
| 494 | {
|
---|
| 495 | if (strstr(buf, "compressed"))
|
---|
| 496 | return 2;
|
---|
| 497 | if (strstr(buf, "bytes"))
|
---|
| 498 | return 1;
|
---|
| 499 | return 0;
|
---|
| 500 | }
|
---|
| 501 |
|
---|
[1765] | 502 | static int if_readconf(void)
|
---|
| 503 | {
|
---|
| 504 | int numreqs = 30;
|
---|
| 505 | struct ifconf ifc;
|
---|
| 506 | struct ifreq *ifr;
|
---|
| 507 | int n, err = -1;
|
---|
| 508 | int skfd;
|
---|
| 509 |
|
---|
| 510 | ifc.ifc_buf = NULL;
|
---|
| 511 |
|
---|
| 512 | /* SIOCGIFCONF currently seems to only work properly on AF_INET sockets
|
---|
| 513 | (as of 2.1.128) */
|
---|
| 514 | skfd = socket(AF_INET, SOCK_DGRAM, 0);
|
---|
| 515 | if (skfd < 0) {
|
---|
| 516 | bb_perror_msg("error: no inet socket available");
|
---|
| 517 | return -1;
|
---|
| 518 | }
|
---|
| 519 |
|
---|
| 520 | for (;;) {
|
---|
| 521 | ifc.ifc_len = sizeof(struct ifreq) * numreqs;
|
---|
| 522 | ifc.ifc_buf = xrealloc(ifc.ifc_buf, ifc.ifc_len);
|
---|
| 523 |
|
---|
| 524 | if (ioctl_or_warn(skfd, SIOCGIFCONF, &ifc) < 0) {
|
---|
| 525 | goto out;
|
---|
| 526 | }
|
---|
| 527 | if (ifc.ifc_len == sizeof(struct ifreq) * numreqs) {
|
---|
| 528 | /* assume it overflowed and try again */
|
---|
| 529 | numreqs += 10;
|
---|
| 530 | continue;
|
---|
| 531 | }
|
---|
| 532 | break;
|
---|
| 533 | }
|
---|
| 534 |
|
---|
| 535 | ifr = ifc.ifc_req;
|
---|
| 536 | for (n = 0; n < ifc.ifc_len; n += sizeof(struct ifreq)) {
|
---|
| 537 | add_interface(ifr->ifr_name);
|
---|
| 538 | ifr++;
|
---|
| 539 | }
|
---|
| 540 | err = 0;
|
---|
| 541 |
|
---|
| 542 | out:
|
---|
| 543 | close(skfd);
|
---|
| 544 | free(ifc.ifc_buf);
|
---|
| 545 | return err;
|
---|
| 546 | }
|
---|
| 547 |
|
---|
[821] | 548 | static int if_readlist_proc(char *target)
|
---|
| 549 | {
|
---|
[1765] | 550 | static smallint proc_read;
|
---|
| 551 |
|
---|
[821] | 552 | FILE *fh;
|
---|
| 553 | char buf[512];
|
---|
| 554 | struct interface *ife;
|
---|
| 555 | int err, procnetdev_vsn;
|
---|
| 556 |
|
---|
| 557 | if (proc_read)
|
---|
| 558 | return 0;
|
---|
| 559 | if (!target)
|
---|
| 560 | proc_read = 1;
|
---|
| 561 |
|
---|
| 562 | fh = fopen(_PATH_PROCNET_DEV, "r");
|
---|
| 563 | if (!fh) {
|
---|
[1765] | 564 | bb_perror_msg("warning: cannot open %s, limiting output", _PATH_PROCNET_DEV);
|
---|
[821] | 565 | return if_readconf();
|
---|
| 566 | }
|
---|
| 567 | fgets(buf, sizeof buf, fh); /* eat line */
|
---|
| 568 | fgets(buf, sizeof buf, fh);
|
---|
| 569 |
|
---|
| 570 | procnetdev_vsn = procnetdev_version(buf);
|
---|
| 571 |
|
---|
| 572 | err = 0;
|
---|
| 573 | while (fgets(buf, sizeof buf, fh)) {
|
---|
| 574 | char *s, name[128];
|
---|
| 575 |
|
---|
| 576 | s = get_name(name, buf);
|
---|
| 577 | ife = add_interface(name);
|
---|
| 578 | get_dev_fields(s, ife, procnetdev_vsn);
|
---|
| 579 | ife->statistics_valid = 1;
|
---|
| 580 | if (target && !strcmp(target, name))
|
---|
| 581 | break;
|
---|
| 582 | }
|
---|
| 583 | if (ferror(fh)) {
|
---|
[1765] | 584 | bb_perror_msg(_PATH_PROCNET_DEV);
|
---|
[821] | 585 | err = -1;
|
---|
| 586 | proc_read = 0;
|
---|
| 587 | }
|
---|
| 588 | fclose(fh);
|
---|
| 589 | return err;
|
---|
| 590 | }
|
---|
| 591 |
|
---|
| 592 | static int if_readlist(void)
|
---|
| 593 | {
|
---|
| 594 | int err = if_readlist_proc(NULL);
|
---|
[1765] | 595 | /* Needed in order to get ethN:M aliases */
|
---|
[821] | 596 | if (!err)
|
---|
| 597 | err = if_readconf();
|
---|
| 598 | return err;
|
---|
| 599 | }
|
---|
| 600 |
|
---|
| 601 | /* Fetch the interface configuration from the kernel. */
|
---|
| 602 | static int if_fetch(struct interface *ife)
|
---|
| 603 | {
|
---|
| 604 | struct ifreq ifr;
|
---|
| 605 | char *ifname = ife->name;
|
---|
[1765] | 606 | int skfd;
|
---|
[821] | 607 |
|
---|
[1765] | 608 | skfd = xsocket(AF_INET, SOCK_DGRAM, 0);
|
---|
| 609 |
|
---|
| 610 | strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
|
---|
| 611 | if (ioctl(skfd, SIOCGIFFLAGS, &ifr) < 0) {
|
---|
| 612 | close(skfd);
|
---|
| 613 | return -1;
|
---|
| 614 | }
|
---|
[821] | 615 | ife->flags = ifr.ifr_flags;
|
---|
| 616 |
|
---|
[1765] | 617 | strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
|
---|
| 618 | memset(ife->hwaddr, 0, 32);
|
---|
| 619 | if (ioctl(skfd, SIOCGIFHWADDR, &ifr) >= 0)
|
---|
[821] | 620 | memcpy(ife->hwaddr, ifr.ifr_hwaddr.sa_data, 8);
|
---|
| 621 |
|
---|
| 622 | ife->type = ifr.ifr_hwaddr.sa_family;
|
---|
| 623 |
|
---|
[1765] | 624 | strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
|
---|
| 625 | ife->metric = 0;
|
---|
| 626 | if (ioctl(skfd, SIOCGIFMETRIC, &ifr) >= 0)
|
---|
[821] | 627 | ife->metric = ifr.ifr_metric;
|
---|
| 628 |
|
---|
[1765] | 629 | strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
|
---|
| 630 | ife->mtu = 0;
|
---|
| 631 | if (ioctl(skfd, SIOCGIFMTU, &ifr) >= 0)
|
---|
[821] | 632 | ife->mtu = ifr.ifr_mtu;
|
---|
| 633 |
|
---|
[1765] | 634 | memset(&ife->map, 0, sizeof(struct ifmap));
|
---|
[821] | 635 | #ifdef SIOCGIFMAP
|
---|
[1765] | 636 | strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
|
---|
[821] | 637 | if (ioctl(skfd, SIOCGIFMAP, &ifr) == 0)
|
---|
| 638 | ife->map = ifr.ifr_map;
|
---|
| 639 | #endif
|
---|
| 640 |
|
---|
| 641 | #ifdef HAVE_TXQUEUELEN
|
---|
[1765] | 642 | strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
|
---|
| 643 | ife->tx_queue_len = -1; /* unknown value */
|
---|
| 644 | if (ioctl(skfd, SIOCGIFTXQLEN, &ifr) >= 0)
|
---|
[821] | 645 | ife->tx_queue_len = ifr.ifr_qlen;
|
---|
| 646 | #else
|
---|
| 647 | ife->tx_queue_len = -1; /* unknown value */
|
---|
| 648 | #endif
|
---|
| 649 |
|
---|
[1765] | 650 | strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
|
---|
| 651 | ifr.ifr_addr.sa_family = AF_INET;
|
---|
| 652 | memset(&ife->addr, 0, sizeof(struct sockaddr));
|
---|
| 653 | if (ioctl(skfd, SIOCGIFADDR, &ifr) == 0) {
|
---|
| 654 | ife->has_ip = 1;
|
---|
| 655 | ife->addr = ifr.ifr_addr;
|
---|
| 656 | strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
|
---|
| 657 | memset(&ife->dstaddr, 0, sizeof(struct sockaddr));
|
---|
| 658 | if (ioctl(skfd, SIOCGIFDSTADDR, &ifr) >= 0)
|
---|
| 659 | ife->dstaddr = ifr.ifr_dstaddr;
|
---|
[821] | 660 |
|
---|
[1765] | 661 | strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
|
---|
| 662 | memset(&ife->broadaddr, 0, sizeof(struct sockaddr));
|
---|
| 663 | if (ioctl(skfd, SIOCGIFBRDADDR, &ifr) >= 0)
|
---|
| 664 | ife->broadaddr = ifr.ifr_broadaddr;
|
---|
[821] | 665 |
|
---|
[1765] | 666 | strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
|
---|
| 667 | memset(&ife->netmask, 0, sizeof(struct sockaddr));
|
---|
| 668 | if (ioctl(skfd, SIOCGIFNETMASK, &ifr) >= 0)
|
---|
| 669 | ife->netmask = ifr.ifr_netmask;
|
---|
[821] | 670 | }
|
---|
| 671 |
|
---|
[1765] | 672 | close(skfd);
|
---|
[821] | 673 | return 0;
|
---|
| 674 | }
|
---|
| 675 |
|
---|
| 676 |
|
---|
| 677 | static int do_if_fetch(struct interface *ife)
|
---|
| 678 | {
|
---|
| 679 | if (if_fetch(ife) < 0) {
|
---|
[1765] | 680 | const char *errmsg;
|
---|
[821] | 681 |
|
---|
| 682 | if (errno == ENODEV) {
|
---|
| 683 | /* Give better error message for this case. */
|
---|
| 684 | errmsg = "Device not found";
|
---|
| 685 | } else {
|
---|
| 686 | errmsg = strerror(errno);
|
---|
| 687 | }
|
---|
| 688 | bb_error_msg("%s: error fetching interface information: %s",
|
---|
| 689 | ife->name, errmsg);
|
---|
| 690 | return -1;
|
---|
| 691 | }
|
---|
| 692 | return 0;
|
---|
| 693 | }
|
---|
| 694 |
|
---|
| 695 | static const struct hwtype unspec_hwtype = {
|
---|
| 696 | .name = "unspec",
|
---|
| 697 | .title = "UNSPEC",
|
---|
| 698 | .type = -1,
|
---|
| 699 | .print = UNSPEC_print
|
---|
| 700 | };
|
---|
| 701 |
|
---|
| 702 | static const struct hwtype loop_hwtype = {
|
---|
| 703 | .name = "loop",
|
---|
| 704 | .title = "Local Loopback",
|
---|
| 705 | .type = ARPHRD_LOOPBACK
|
---|
| 706 | };
|
---|
| 707 |
|
---|
| 708 | #include <net/if_arp.h>
|
---|
| 709 |
|
---|
[1765] | 710 | #if (defined(__GLIBC__) && __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 1) || defined(_NEWLIB_VERSION)
|
---|
[821] | 711 | #include <net/ethernet.h>
|
---|
| 712 | #else
|
---|
| 713 | #include <linux/if_ether.h>
|
---|
| 714 | #endif
|
---|
| 715 |
|
---|
| 716 | /* Display an Ethernet address in readable format. */
|
---|
| 717 | static char *pr_ether(unsigned char *ptr)
|
---|
| 718 | {
|
---|
[1765] | 719 | static char *buff;
|
---|
[821] | 720 |
|
---|
[1765] | 721 | free(buff);
|
---|
| 722 | buff = xasprintf("%02X:%02X:%02X:%02X:%02X:%02X",
|
---|
[821] | 723 | (ptr[0] & 0377), (ptr[1] & 0377), (ptr[2] & 0377),
|
---|
| 724 | (ptr[3] & 0377), (ptr[4] & 0377), (ptr[5] & 0377)
|
---|
| 725 | );
|
---|
[1765] | 726 | return buff;
|
---|
[821] | 727 | }
|
---|
| 728 |
|
---|
[1765] | 729 | static int in_ether(const char *bufp, struct sockaddr *sap);
|
---|
| 730 |
|
---|
[821] | 731 | static const struct hwtype ether_hwtype = {
|
---|
| 732 | .name = "ether",
|
---|
| 733 | .title = "Ethernet",
|
---|
| 734 | .type = ARPHRD_ETHER,
|
---|
| 735 | .alen = ETH_ALEN,
|
---|
[1765] | 736 | .print = pr_ether,
|
---|
| 737 | .input = in_ether
|
---|
[821] | 738 | };
|
---|
| 739 |
|
---|
[1765] | 740 | static unsigned hexchar2int(char c)
|
---|
| 741 | {
|
---|
| 742 | if (isdigit(c))
|
---|
| 743 | return c - '0';
|
---|
| 744 | c &= ~0x20; /* a -> A */
|
---|
| 745 | if ((unsigned)(c - 'A') <= 5)
|
---|
| 746 | return c - ('A' - 10);
|
---|
| 747 | return ~0U;
|
---|
| 748 | }
|
---|
| 749 |
|
---|
| 750 | /* Input an Ethernet address and convert to binary. */
|
---|
| 751 | static int in_ether(const char *bufp, struct sockaddr *sap)
|
---|
| 752 | {
|
---|
| 753 | unsigned char *ptr;
|
---|
| 754 | char c;
|
---|
| 755 | int i;
|
---|
| 756 | unsigned val;
|
---|
| 757 |
|
---|
| 758 | sap->sa_family = ether_hwtype.type;
|
---|
| 759 | ptr = (unsigned char*) sap->sa_data;
|
---|
| 760 |
|
---|
| 761 | i = 0;
|
---|
| 762 | while ((*bufp != '\0') && (i < ETH_ALEN)) {
|
---|
| 763 | val = hexchar2int(*bufp++) * 0x10;
|
---|
| 764 | if (val > 0xff) {
|
---|
| 765 | errno = EINVAL;
|
---|
| 766 | return -1;
|
---|
| 767 | }
|
---|
| 768 | c = *bufp;
|
---|
| 769 | if (c == ':' || c == 0)
|
---|
| 770 | val >>= 4;
|
---|
| 771 | else {
|
---|
| 772 | val |= hexchar2int(c);
|
---|
| 773 | if (val > 0xff) {
|
---|
| 774 | errno = EINVAL;
|
---|
| 775 | return -1;
|
---|
| 776 | }
|
---|
| 777 | }
|
---|
| 778 | if (c != 0)
|
---|
| 779 | bufp++;
|
---|
| 780 | *ptr++ = (unsigned char) val;
|
---|
| 781 | i++;
|
---|
| 782 |
|
---|
| 783 | /* We might get a semicolon here - not required. */
|
---|
| 784 | if (*bufp == ':') {
|
---|
| 785 | bufp++;
|
---|
| 786 | }
|
---|
| 787 | }
|
---|
| 788 | return 0;
|
---|
| 789 | }
|
---|
| 790 |
|
---|
[821] | 791 | #include <net/if_arp.h>
|
---|
| 792 |
|
---|
| 793 | static const struct hwtype ppp_hwtype = {
|
---|
| 794 | .name = "ppp",
|
---|
| 795 | .title = "Point-to-Point Protocol",
|
---|
| 796 | .type = ARPHRD_PPP
|
---|
| 797 | };
|
---|
| 798 |
|
---|
[1765] | 799 | #if ENABLE_FEATURE_IPV6
|
---|
[821] | 800 | static const struct hwtype sit_hwtype = {
|
---|
| 801 | .name = "sit",
|
---|
| 802 | .title = "IPv6-in-IPv4",
|
---|
| 803 | .type = ARPHRD_SIT,
|
---|
| 804 | .print = UNSPEC_print,
|
---|
| 805 | .suppress_null_addr = 1
|
---|
[1765] | 806 | };
|
---|
[821] | 807 | #endif
|
---|
| 808 |
|
---|
[1765] | 809 | static const struct hwtype *const hwtypes[] = {
|
---|
[821] | 810 | &loop_hwtype,
|
---|
| 811 | ðer_hwtype,
|
---|
| 812 | &ppp_hwtype,
|
---|
| 813 | &unspec_hwtype,
|
---|
[1765] | 814 | #if ENABLE_FEATURE_IPV6
|
---|
[821] | 815 | &sit_hwtype,
|
---|
| 816 | #endif
|
---|
| 817 | NULL
|
---|
| 818 | };
|
---|
| 819 |
|
---|
| 820 | #ifdef IFF_PORTSEL
|
---|
[1765] | 821 | static const char *const if_port_text[] = {
|
---|
[821] | 822 | /* Keep in step with <linux/netdevice.h> */
|
---|
| 823 | "unknown",
|
---|
| 824 | "10base2",
|
---|
| 825 | "10baseT",
|
---|
| 826 | "AUI",
|
---|
| 827 | "100baseT",
|
---|
| 828 | "100baseTX",
|
---|
| 829 | "100baseFX",
|
---|
| 830 | NULL
|
---|
| 831 | };
|
---|
| 832 | #endif
|
---|
| 833 |
|
---|
| 834 | /* Check our hardware type table for this type. */
|
---|
[1765] | 835 | const struct hwtype *get_hwtype(const char *name)
|
---|
[821] | 836 | {
|
---|
[1765] | 837 | const struct hwtype *const *hwp;
|
---|
[821] | 838 |
|
---|
| 839 | hwp = hwtypes;
|
---|
| 840 | while (*hwp != NULL) {
|
---|
[1765] | 841 | if (!strcmp((*hwp)->name, name))
|
---|
[821] | 842 | return (*hwp);
|
---|
| 843 | hwp++;
|
---|
| 844 | }
|
---|
[1765] | 845 | return NULL;
|
---|
[821] | 846 | }
|
---|
| 847 |
|
---|
[1765] | 848 | /* Check our hardware type table for this type. */
|
---|
| 849 | const struct hwtype *get_hwntype(int type)
|
---|
| 850 | {
|
---|
| 851 | const struct hwtype *const *hwp;
|
---|
| 852 |
|
---|
| 853 | hwp = hwtypes;
|
---|
| 854 | while (*hwp != NULL) {
|
---|
| 855 | if ((*hwp)->type == type)
|
---|
| 856 | return *hwp;
|
---|
| 857 | hwp++;
|
---|
| 858 | }
|
---|
| 859 | return NULL;
|
---|
| 860 | }
|
---|
| 861 |
|
---|
[821] | 862 | /* return 1 if address is all zeros */
|
---|
| 863 | static int hw_null_address(const struct hwtype *hw, void *ap)
|
---|
| 864 | {
|
---|
| 865 | unsigned int i;
|
---|
| 866 | unsigned char *address = (unsigned char *) ap;
|
---|
| 867 |
|
---|
| 868 | for (i = 0; i < hw->alen; i++)
|
---|
| 869 | if (address[i])
|
---|
| 870 | return 0;
|
---|
| 871 | return 1;
|
---|
| 872 | }
|
---|
| 873 |
|
---|
[1765] | 874 | static const char TRext[] ALIGN1 = "\0\0\0Ki\0Mi\0Gi\0Ti";
|
---|
[821] | 875 |
|
---|
| 876 | static void print_bytes_scaled(unsigned long long ull, const char *end)
|
---|
| 877 | {
|
---|
| 878 | unsigned long long int_part;
|
---|
| 879 | const char *ext;
|
---|
| 880 | unsigned int frac_part;
|
---|
| 881 | int i;
|
---|
| 882 |
|
---|
| 883 | frac_part = 0;
|
---|
| 884 | ext = TRext;
|
---|
| 885 | int_part = ull;
|
---|
| 886 | i = 4;
|
---|
| 887 | do {
|
---|
| 888 | if (int_part >= 1024) {
|
---|
| 889 | frac_part = ((((unsigned int) int_part) & (1024-1)) * 10) / 1024;
|
---|
| 890 | int_part /= 1024;
|
---|
| 891 | ext += 3; /* KiB, MiB, GiB, TiB */
|
---|
| 892 | }
|
---|
| 893 | --i;
|
---|
| 894 | } while (i);
|
---|
| 895 |
|
---|
| 896 | printf("X bytes:%llu (%llu.%u %sB)%s", ull, int_part, frac_part, ext, end);
|
---|
| 897 | }
|
---|
| 898 |
|
---|
| 899 | static void ife_print(struct interface *ptr)
|
---|
| 900 | {
|
---|
[1765] | 901 | const struct aftype *ap;
|
---|
[821] | 902 | const struct hwtype *hw;
|
---|
| 903 | int hf;
|
---|
| 904 | int can_compress = 0;
|
---|
| 905 |
|
---|
[1765] | 906 | #ifdef HAVE_AFINET6
|
---|
[821] | 907 | FILE *f;
|
---|
| 908 | char addr6[40], devname[20];
|
---|
| 909 | struct sockaddr_in6 sap;
|
---|
| 910 | int plen, scope, dad_status, if_idx;
|
---|
| 911 | char addr6p[8][5];
|
---|
| 912 | #endif
|
---|
| 913 |
|
---|
| 914 | ap = get_afntype(ptr->addr.sa_family);
|
---|
| 915 | if (ap == NULL)
|
---|
| 916 | ap = get_afntype(0);
|
---|
| 917 |
|
---|
| 918 | hf = ptr->type;
|
---|
| 919 |
|
---|
| 920 | if (hf == ARPHRD_CSLIP || hf == ARPHRD_CSLIP6)
|
---|
| 921 | can_compress = 1;
|
---|
| 922 |
|
---|
| 923 | hw = get_hwntype(hf);
|
---|
| 924 | if (hw == NULL)
|
---|
| 925 | hw = get_hwntype(-1);
|
---|
| 926 |
|
---|
| 927 | printf("%-9.9s Link encap:%s ", ptr->name, hw->title);
|
---|
| 928 | /* For some hardware types (eg Ash, ATM) we don't print the
|
---|
| 929 | hardware address if it's null. */
|
---|
| 930 | if (hw->print != NULL && (!(hw_null_address(hw, ptr->hwaddr) &&
|
---|
| 931 | hw->suppress_null_addr)))
|
---|
| 932 | printf("HWaddr %s ", hw->print((unsigned char *)ptr->hwaddr));
|
---|
| 933 | #ifdef IFF_PORTSEL
|
---|
| 934 | if (ptr->flags & IFF_PORTSEL) {
|
---|
| 935 | printf("Media:%s", if_port_text[ptr->map.port] /* [0] */);
|
---|
| 936 | if (ptr->flags & IFF_AUTOMEDIA)
|
---|
| 937 | printf("(auto)");
|
---|
| 938 | }
|
---|
| 939 | #endif
|
---|
[1765] | 940 | puts("");
|
---|
[821] | 941 |
|
---|
| 942 | if (ptr->has_ip) {
|
---|
| 943 | printf(" %s addr:%s ", ap->name,
|
---|
| 944 | ap->sprint(&ptr->addr, 1));
|
---|
| 945 | if (ptr->flags & IFF_POINTOPOINT) {
|
---|
| 946 | printf(" P-t-P:%s ", ap->sprint(&ptr->dstaddr, 1));
|
---|
| 947 | }
|
---|
| 948 | if (ptr->flags & IFF_BROADCAST) {
|
---|
| 949 | printf(" Bcast:%s ", ap->sprint(&ptr->broadaddr, 1));
|
---|
| 950 | }
|
---|
| 951 | printf(" Mask:%s\n", ap->sprint(&ptr->netmask, 1));
|
---|
| 952 | }
|
---|
| 953 |
|
---|
[1765] | 954 | #ifdef HAVE_AFINET6
|
---|
[821] | 955 |
|
---|
| 956 | #define IPV6_ADDR_ANY 0x0000U
|
---|
| 957 |
|
---|
| 958 | #define IPV6_ADDR_UNICAST 0x0001U
|
---|
| 959 | #define IPV6_ADDR_MULTICAST 0x0002U
|
---|
| 960 | #define IPV6_ADDR_ANYCAST 0x0004U
|
---|
| 961 |
|
---|
| 962 | #define IPV6_ADDR_LOOPBACK 0x0010U
|
---|
| 963 | #define IPV6_ADDR_LINKLOCAL 0x0020U
|
---|
| 964 | #define IPV6_ADDR_SITELOCAL 0x0040U
|
---|
| 965 |
|
---|
| 966 | #define IPV6_ADDR_COMPATv4 0x0080U
|
---|
| 967 |
|
---|
| 968 | #define IPV6_ADDR_SCOPE_MASK 0x00f0U
|
---|
| 969 |
|
---|
| 970 | #define IPV6_ADDR_MAPPED 0x1000U
|
---|
| 971 | #define IPV6_ADDR_RESERVED 0x2000U /* reserved address space */
|
---|
| 972 |
|
---|
[1765] | 973 | f = fopen(_PATH_PROCNET_IFINET6, "r");
|
---|
| 974 | if (f != NULL) {
|
---|
[821] | 975 | while (fscanf
|
---|
[1765] | 976 | (f, "%4s%4s%4s%4s%4s%4s%4s%4s %08x %02x %02x %02x %20s\n",
|
---|
[821] | 977 | addr6p[0], addr6p[1], addr6p[2], addr6p[3], addr6p[4],
|
---|
| 978 | addr6p[5], addr6p[6], addr6p[7], &if_idx, &plen, &scope,
|
---|
[1765] | 979 | &dad_status, devname) != EOF
|
---|
| 980 | ) {
|
---|
[821] | 981 | if (!strcmp(devname, ptr->name)) {
|
---|
| 982 | sprintf(addr6, "%s:%s:%s:%s:%s:%s:%s:%s",
|
---|
| 983 | addr6p[0], addr6p[1], addr6p[2], addr6p[3],
|
---|
| 984 | addr6p[4], addr6p[5], addr6p[6], addr6p[7]);
|
---|
| 985 | inet_pton(AF_INET6, addr6,
|
---|
| 986 | (struct sockaddr *) &sap.sin6_addr);
|
---|
| 987 | sap.sin6_family = AF_INET6;
|
---|
| 988 | printf(" inet6 addr: %s/%d",
|
---|
[1765] | 989 | INET6_sprint((struct sockaddr *) &sap, 1),
|
---|
[821] | 990 | plen);
|
---|
| 991 | printf(" Scope:");
|
---|
| 992 | switch (scope & IPV6_ADDR_SCOPE_MASK) {
|
---|
| 993 | case 0:
|
---|
[1765] | 994 | puts("Global");
|
---|
[821] | 995 | break;
|
---|
| 996 | case IPV6_ADDR_LINKLOCAL:
|
---|
[1765] | 997 | puts("Link");
|
---|
[821] | 998 | break;
|
---|
| 999 | case IPV6_ADDR_SITELOCAL:
|
---|
[1765] | 1000 | puts("Site");
|
---|
[821] | 1001 | break;
|
---|
| 1002 | case IPV6_ADDR_COMPATv4:
|
---|
[1765] | 1003 | puts("Compat");
|
---|
[821] | 1004 | break;
|
---|
| 1005 | case IPV6_ADDR_LOOPBACK:
|
---|
[1765] | 1006 | puts("Host");
|
---|
[821] | 1007 | break;
|
---|
| 1008 | default:
|
---|
[1765] | 1009 | puts("Unknown");
|
---|
[821] | 1010 | }
|
---|
| 1011 | }
|
---|
| 1012 | }
|
---|
| 1013 | fclose(f);
|
---|
| 1014 | }
|
---|
| 1015 | #endif
|
---|
| 1016 |
|
---|
| 1017 | printf(" ");
|
---|
| 1018 | /* DONT FORGET TO ADD THE FLAGS IN ife_print_short, too */
|
---|
| 1019 |
|
---|
| 1020 | if (ptr->flags == 0) {
|
---|
| 1021 | printf("[NO FLAGS] ");
|
---|
| 1022 | } else {
|
---|
[1765] | 1023 | static const char ife_print_flags_strs[] ALIGN1 =
|
---|
| 1024 | "UP\0"
|
---|
| 1025 | "BROADCAST\0"
|
---|
| 1026 | "DEBUG\0"
|
---|
| 1027 | "LOOPBACK\0"
|
---|
| 1028 | "POINTOPOINT\0"
|
---|
| 1029 | "NOTRAILERS\0"
|
---|
| 1030 | "RUNNING\0"
|
---|
| 1031 | "NOARP\0"
|
---|
| 1032 | "PROMISC\0"
|
---|
| 1033 | "ALLMULTI\0"
|
---|
| 1034 | "SLAVE\0"
|
---|
| 1035 | "MASTER\0"
|
---|
| 1036 | "MULTICAST\0"
|
---|
| 1037 | #ifdef HAVE_DYNAMIC
|
---|
| 1038 | "DYNAMIC\0"
|
---|
| 1039 | #endif
|
---|
| 1040 | ;
|
---|
| 1041 | static const unsigned short ife_print_flags_mask[] ALIGN2 = {
|
---|
| 1042 | IFF_UP,
|
---|
| 1043 | IFF_BROADCAST,
|
---|
| 1044 | IFF_DEBUG,
|
---|
| 1045 | IFF_LOOPBACK,
|
---|
| 1046 | IFF_POINTOPOINT,
|
---|
| 1047 | IFF_NOTRAILERS,
|
---|
| 1048 | IFF_RUNNING,
|
---|
| 1049 | IFF_NOARP,
|
---|
| 1050 | IFF_PROMISC,
|
---|
| 1051 | IFF_ALLMULTI,
|
---|
| 1052 | IFF_SLAVE,
|
---|
| 1053 | IFF_MASTER,
|
---|
| 1054 | IFF_MULTICAST
|
---|
| 1055 | #ifdef HAVE_DYNAMIC
|
---|
| 1056 | ,IFF_DYNAMIC
|
---|
| 1057 | #endif
|
---|
| 1058 | };
|
---|
| 1059 | const unsigned short *mask = ife_print_flags_mask;
|
---|
| 1060 | const char *str = ife_print_flags_strs;
|
---|
[821] | 1061 | do {
|
---|
[1765] | 1062 | if (ptr->flags & *mask) {
|
---|
| 1063 | printf("%s ", str);
|
---|
[821] | 1064 | }
|
---|
[1765] | 1065 | mask++;
|
---|
| 1066 | str += strlen(str) + 1;
|
---|
| 1067 | } while (*str);
|
---|
[821] | 1068 | }
|
---|
| 1069 |
|
---|
| 1070 | /* DONT FORGET TO ADD THE FLAGS IN ife_print_short */
|
---|
| 1071 | printf(" MTU:%d Metric:%d", ptr->mtu, ptr->metric ? ptr->metric : 1);
|
---|
| 1072 | #ifdef SIOCSKEEPALIVE
|
---|
| 1073 | if (ptr->outfill || ptr->keepalive)
|
---|
| 1074 | printf(" Outfill:%d Keepalive:%d", ptr->outfill, ptr->keepalive);
|
---|
| 1075 | #endif
|
---|
[1765] | 1076 | puts("");
|
---|
[821] | 1077 |
|
---|
| 1078 | /* If needed, display the interface statistics. */
|
---|
| 1079 |
|
---|
| 1080 | if (ptr->statistics_valid) {
|
---|
| 1081 | /* XXX: statistics are currently only printed for the primary address,
|
---|
| 1082 | * not for the aliases, although strictly speaking they're shared
|
---|
| 1083 | * by all addresses.
|
---|
| 1084 | */
|
---|
| 1085 | printf(" ");
|
---|
| 1086 |
|
---|
| 1087 | printf("RX packets:%llu errors:%lu dropped:%lu overruns:%lu frame:%lu\n",
|
---|
| 1088 | ptr->stats.rx_packets, ptr->stats.rx_errors,
|
---|
| 1089 | ptr->stats.rx_dropped, ptr->stats.rx_fifo_errors,
|
---|
| 1090 | ptr->stats.rx_frame_errors);
|
---|
| 1091 | if (can_compress)
|
---|
| 1092 | printf(" compressed:%lu\n",
|
---|
| 1093 | ptr->stats.rx_compressed);
|
---|
| 1094 | printf(" ");
|
---|
| 1095 | printf("TX packets:%llu errors:%lu dropped:%lu overruns:%lu carrier:%lu\n",
|
---|
| 1096 | ptr->stats.tx_packets, ptr->stats.tx_errors,
|
---|
| 1097 | ptr->stats.tx_dropped, ptr->stats.tx_fifo_errors,
|
---|
| 1098 | ptr->stats.tx_carrier_errors);
|
---|
| 1099 | printf(" collisions:%lu ", ptr->stats.collisions);
|
---|
| 1100 | if (can_compress)
|
---|
| 1101 | printf("compressed:%lu ", ptr->stats.tx_compressed);
|
---|
| 1102 | if (ptr->tx_queue_len != -1)
|
---|
| 1103 | printf("txqueuelen:%d ", ptr->tx_queue_len);
|
---|
| 1104 | printf("\n R");
|
---|
| 1105 | print_bytes_scaled(ptr->stats.rx_bytes, " T");
|
---|
| 1106 | print_bytes_scaled(ptr->stats.tx_bytes, "\n");
|
---|
| 1107 |
|
---|
| 1108 | }
|
---|
| 1109 |
|
---|
| 1110 | if ((ptr->map.irq || ptr->map.mem_start || ptr->map.dma ||
|
---|
| 1111 | ptr->map.base_addr)) {
|
---|
| 1112 | printf(" ");
|
---|
| 1113 | if (ptr->map.irq)
|
---|
| 1114 | printf("Interrupt:%d ", ptr->map.irq);
|
---|
| 1115 | if (ptr->map.base_addr >= 0x100) /* Only print devices using it for
|
---|
| 1116 | I/O maps */
|
---|
| 1117 | printf("Base address:0x%lx ",
|
---|
| 1118 | (unsigned long) ptr->map.base_addr);
|
---|
| 1119 | if (ptr->map.mem_start) {
|
---|
| 1120 | printf("Memory:%lx-%lx ", ptr->map.mem_start,
|
---|
| 1121 | ptr->map.mem_end);
|
---|
| 1122 | }
|
---|
| 1123 | if (ptr->map.dma)
|
---|
| 1124 | printf("DMA chan:%x ", ptr->map.dma);
|
---|
[1765] | 1125 | puts("");
|
---|
[821] | 1126 | }
|
---|
[1765] | 1127 | puts("");
|
---|
[821] | 1128 | }
|
---|
| 1129 |
|
---|
| 1130 |
|
---|
[1765] | 1131 | static int do_if_print(struct interface *ife) /*, int *opt_a)*/
|
---|
[821] | 1132 | {
|
---|
| 1133 | int res;
|
---|
| 1134 |
|
---|
| 1135 | res = do_if_fetch(ife);
|
---|
| 1136 | if (res >= 0) {
|
---|
[1765] | 1137 | if ((ife->flags & IFF_UP) || interface_opt_a)
|
---|
[821] | 1138 | ife_print(ife);
|
---|
| 1139 | }
|
---|
| 1140 | return res;
|
---|
| 1141 | }
|
---|
| 1142 |
|
---|
| 1143 | static struct interface *lookup_interface(char *name)
|
---|
| 1144 | {
|
---|
| 1145 | struct interface *ife = NULL;
|
---|
| 1146 |
|
---|
| 1147 | if (if_readlist_proc(name) < 0)
|
---|
| 1148 | return NULL;
|
---|
| 1149 | ife = add_interface(name);
|
---|
| 1150 | return ife;
|
---|
| 1151 | }
|
---|
| 1152 |
|
---|
[1765] | 1153 | #ifdef UNUSED
|
---|
| 1154 | static int for_all_interfaces(int (*doit) (struct interface *, void *),
|
---|
| 1155 | void *cookie)
|
---|
| 1156 | {
|
---|
| 1157 | struct interface *ife;
|
---|
| 1158 |
|
---|
| 1159 | if (!int_list && (if_readlist() < 0))
|
---|
| 1160 | return -1;
|
---|
| 1161 | for (ife = int_list; ife; ife = ife->next) {
|
---|
| 1162 | int err = doit(ife, cookie);
|
---|
| 1163 |
|
---|
| 1164 | if (err)
|
---|
| 1165 | return err;
|
---|
| 1166 | }
|
---|
| 1167 | return 0;
|
---|
| 1168 | }
|
---|
| 1169 | #endif
|
---|
| 1170 |
|
---|
[821] | 1171 | /* for ipv4 add/del modes */
|
---|
| 1172 | static int if_print(char *ifname)
|
---|
| 1173 | {
|
---|
[1765] | 1174 | struct interface *ife;
|
---|
[821] | 1175 | int res;
|
---|
| 1176 |
|
---|
| 1177 | if (!ifname) {
|
---|
[1765] | 1178 | /*res = for_all_interfaces(do_if_print, &interface_opt_a);*/
|
---|
| 1179 | if (!int_list && (if_readlist() < 0))
|
---|
| 1180 | return -1;
|
---|
| 1181 | for (ife = int_list; ife; ife = ife->next) {
|
---|
| 1182 | int err = do_if_print(ife); /*, &interface_opt_a);*/
|
---|
| 1183 | if (err)
|
---|
| 1184 | return err;
|
---|
| 1185 | }
|
---|
| 1186 | return 0;
|
---|
[821] | 1187 | }
|
---|
[1765] | 1188 | ife = lookup_interface(ifname);
|
---|
| 1189 | res = do_if_fetch(ife);
|
---|
| 1190 | if (res >= 0)
|
---|
| 1191 | ife_print(ife);
|
---|
[821] | 1192 | return res;
|
---|
| 1193 | }
|
---|
| 1194 |
|
---|
| 1195 | int display_interfaces(char *ifname)
|
---|
| 1196 | {
|
---|
| 1197 | int status;
|
---|
| 1198 |
|
---|
[1765] | 1199 | status = if_print(ifname);
|
---|
[821] | 1200 |
|
---|
[1765] | 1201 | return (status < 0); /* status < 0 == 1 -- error */
|
---|
[821] | 1202 | }
|
---|