[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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[2725] | 22 | * Licensed under GPLv2 or later, see file LICENSE in this source tree.
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[821] | 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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[3232] | 30 | * 20001008 - Bernd Eckenfels, Patch from RH for setting mtu
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[821] | 31 | * (default AF was wrong)
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| 32 | */
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[3232] | 33 |
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| 34 | #include "libbb.h"
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| 35 | #include "inet_common.h"
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[821] | 36 | #include <net/if.h>
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| 37 | #include <net/if_arp.h>
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[3232] | 38 | #ifdef HAVE_NET_ETHERNET_H
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[2725] | 39 | # include <net/ethernet.h>
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| 40 | #endif
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[821] | 41 |
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[2725] | 42 | #if ENABLE_FEATURE_HWIB
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| 43 | /* #include <linux/if_infiniband.h> */
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| 44 | # undef INFINIBAND_ALEN
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| 45 | # define INFINIBAND_ALEN 20
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| 46 | #endif
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| 47 |
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[1765] | 48 | #if ENABLE_FEATURE_IPV6
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[821] | 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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[1765] | 57 | #ifdef HAVE_AFINET6
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[2725] | 58 | # ifndef _LINUX_IN6_H
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[821] | 59 | /*
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[2725] | 60 | * This is from linux/include/net/ipv6.h
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[821] | 61 | */
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| 62 | struct in6_ifreq {
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| 63 | struct in6_addr ifr6_addr;
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| 64 | uint32_t ifr6_prefixlen;
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| 65 | unsigned int ifr6_ifindex;
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| 66 | };
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[2725] | 67 | # endif
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[1765] | 68 | #endif /* HAVE_AFINET6 */
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[821] | 69 |
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| 70 | /* Defines for glibc2.0 users. */
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| 71 | #ifndef SIOCSIFTXQLEN
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[2725] | 72 | # define SIOCSIFTXQLEN 0x8943
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| 73 | # define SIOCGIFTXQLEN 0x8942
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[821] | 74 | #endif
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| 75 |
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| 76 | /* ifr_qlen is ifru_ivalue, but it isn't present in 2.0 kernel headers */
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| 77 | #ifndef ifr_qlen
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[2725] | 78 | # define ifr_qlen ifr_ifru.ifru_mtu
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[821] | 79 | #endif
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| 80 |
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| 81 | #ifndef HAVE_TXQUEUELEN
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[2725] | 82 | # define HAVE_TXQUEUELEN 1
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[821] | 83 | #endif
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| 84 |
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| 85 | #ifndef IFF_DYNAMIC
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[2725] | 86 | # define IFF_DYNAMIC 0x8000 /* dialup device with changing addresses */
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[821] | 87 | #endif
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| 88 |
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| 89 | /* Display an Internet socket address. */
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[2725] | 90 | static const char* FAST_FUNC INET_sprint(struct sockaddr *sap, int numeric)
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[821] | 91 | {
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[2725] | 92 | static char *buff; /* defaults to NULL */
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[821] | 93 |
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[1765] | 94 | free(buff);
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[821] | 95 | if (sap->sa_family == 0xFFFF || sap->sa_family == 0)
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[1765] | 96 | return "[NONE SET]";
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| 97 | buff = INET_rresolve((struct sockaddr_in *) sap, numeric, 0xffffff00);
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| 98 | return buff;
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| 99 | }
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[821] | 100 |
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[1765] | 101 | #ifdef UNUSED_AND_BUGGY
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| 102 | static int INET_getsock(char *bufp, struct sockaddr *sap)
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| 103 | {
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| 104 | char *sp = bufp, *bp;
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| 105 | unsigned int i;
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| 106 | unsigned val;
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| 107 | struct sockaddr_in *sock_in;
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[821] | 108 |
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[1765] | 109 | sock_in = (struct sockaddr_in *) sap;
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| 110 | sock_in->sin_family = AF_INET;
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| 111 | sock_in->sin_port = 0;
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| 112 |
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| 113 | val = 0;
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| 114 | bp = (char *) &val;
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| 115 | for (i = 0; i < sizeof(sock_in->sin_addr.s_addr); i++) {
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| 116 | *sp = toupper(*sp);
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| 117 |
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| 118 | if ((unsigned)(*sp - 'A') <= 5)
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| 119 | bp[i] |= (int) (*sp - ('A' - 10));
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| 120 | else if (isdigit(*sp))
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| 121 | bp[i] |= (int) (*sp - '0');
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| 122 | else
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| 123 | return -1;
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| 124 |
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| 125 | bp[i] <<= 4;
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| 126 | sp++;
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| 127 | *sp = toupper(*sp);
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| 128 |
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| 129 | if ((unsigned)(*sp - 'A') <= 5)
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| 130 | bp[i] |= (int) (*sp - ('A' - 10));
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| 131 | else if (isdigit(*sp))
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| 132 | bp[i] |= (int) (*sp - '0');
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| 133 | else
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| 134 | return -1;
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| 135 |
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| 136 | sp++;
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| 137 | }
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| 138 | sock_in->sin_addr.s_addr = htonl(val);
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| 139 |
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| 140 | return (sp - bufp);
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[821] | 141 | }
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[1765] | 142 | #endif
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[821] | 143 |
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[2725] | 144 | static int FAST_FUNC INET_input(/*int type,*/ const char *bufp, struct sockaddr *sap)
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[1765] | 145 | {
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| 146 | return INET_resolve(bufp, (struct sockaddr_in *) sap, 0);
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| 147 | /*
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| 148 | switch (type) {
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| 149 | case 1:
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| 150 | return (INET_getsock(bufp, sap));
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| 151 | case 256:
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| 152 | return (INET_resolve(bufp, (struct sockaddr_in *) sap, 1));
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| 153 | default:
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| 154 | return (INET_resolve(bufp, (struct sockaddr_in *) sap, 0));
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| 155 | }
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| 156 | */
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| 157 | }
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| 158 |
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| 159 | static const struct aftype inet_aftype = {
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[2725] | 160 | .name = "inet",
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| 161 | .title = "DARPA Internet",
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| 162 | .af = AF_INET,
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| 163 | .alen = 4,
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| 164 | .sprint = INET_sprint,
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| 165 | .input = INET_input,
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[821] | 166 | };
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| 167 |
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[1765] | 168 | #ifdef HAVE_AFINET6
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[821] | 169 |
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| 170 | /* Display an Internet socket address. */
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| 171 | /* dirty! struct sockaddr usually doesn't suffer for inet6 addresses, fst. */
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[2725] | 172 | static const char* FAST_FUNC INET6_sprint(struct sockaddr *sap, int numeric)
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[821] | 173 | {
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[1765] | 174 | static char *buff;
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[821] | 175 |
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[1765] | 176 | free(buff);
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[821] | 177 | if (sap->sa_family == 0xFFFF || sap->sa_family == 0)
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[1765] | 178 | return "[NONE SET]";
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| 179 | buff = INET6_rresolve((struct sockaddr_in6 *) sap, numeric);
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| 180 | return buff;
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[821] | 181 | }
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| 182 |
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[1765] | 183 | #ifdef UNUSED
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| 184 | static int INET6_getsock(char *bufp, struct sockaddr *sap)
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| 185 | {
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| 186 | struct sockaddr_in6 *sin6;
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| 187 |
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| 188 | sin6 = (struct sockaddr_in6 *) sap;
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| 189 | sin6->sin6_family = AF_INET6;
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| 190 | sin6->sin6_port = 0;
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| 191 |
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| 192 | if (inet_pton(AF_INET6, bufp, sin6->sin6_addr.s6_addr) <= 0)
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| 193 | return -1;
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| 194 |
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| 195 | return 16; /* ?;) */
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| 196 | }
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| 197 | #endif
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| 198 |
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[2725] | 199 | static int FAST_FUNC INET6_input(/*int type,*/ const char *bufp, struct sockaddr *sap)
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[1765] | 200 | {
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| 201 | return INET6_resolve(bufp, (struct sockaddr_in6 *) sap);
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| 202 | /*
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| 203 | switch (type) {
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| 204 | case 1:
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| 205 | return (INET6_getsock(bufp, sap));
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| 206 | default:
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| 207 | return (INET6_resolve(bufp, (struct sockaddr_in6 *) sap));
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| 208 | }
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| 209 | */
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| 210 | }
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| 211 |
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| 212 | static const struct aftype inet6_aftype = {
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[2725] | 213 | .name = "inet6",
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| 214 | .title = "IPv6",
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| 215 | .af = AF_INET6,
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| 216 | .alen = sizeof(struct in6_addr),
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| 217 | .sprint = INET6_sprint,
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| 218 | .input = INET6_input,
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[821] | 219 | };
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| 220 |
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[1765] | 221 | #endif /* HAVE_AFINET6 */
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[821] | 222 |
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| 223 | /* Display an UNSPEC address. */
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[2725] | 224 | static char* FAST_FUNC UNSPEC_print(unsigned char *ptr)
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[821] | 225 | {
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[1765] | 226 | static char *buff;
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| 227 |
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[821] | 228 | char *pos;
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| 229 | unsigned int i;
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| 230 |
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[2725] | 231 | if (!buff)
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[1765] | 232 | buff = xmalloc(sizeof(struct sockaddr) * 3 + 1);
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[821] | 233 | pos = buff;
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| 234 | for (i = 0; i < sizeof(struct sockaddr); i++) {
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| 235 | /* careful -- not every libc's sprintf returns # bytes written */
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| 236 | sprintf(pos, "%02X-", (*ptr++ & 0377));
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| 237 | pos += 3;
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| 238 | }
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| 239 | /* Erase trailing "-". Works as long as sizeof(struct sockaddr) != 0 */
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| 240 | *--pos = '\0';
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[1765] | 241 | return buff;
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[821] | 242 | }
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| 243 |
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| 244 | /* Display an UNSPEC socket address. */
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[2725] | 245 | static const char* FAST_FUNC UNSPEC_sprint(struct sockaddr *sap, int numeric UNUSED_PARAM)
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[821] | 246 | {
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| 247 | if (sap->sa_family == 0xFFFF || sap->sa_family == 0)
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[1765] | 248 | return "[NONE SET]";
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| 249 | return UNSPEC_print((unsigned char *)sap->sa_data);
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[821] | 250 | }
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| 251 |
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[1765] | 252 | static const struct aftype unspec_aftype = {
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| 253 | .name = "unspec",
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| 254 | .title = "UNSPEC",
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| 255 | .af = AF_UNSPEC,
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[2725] | 256 | .alen = 0,
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[1765] | 257 | .print = UNSPEC_print,
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| 258 | .sprint = UNSPEC_sprint,
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[821] | 259 | };
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| 260 |
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[1765] | 261 | static const struct aftype *const aftypes[] = {
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[821] | 262 | &inet_aftype,
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[1765] | 263 | #ifdef HAVE_AFINET6
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[821] | 264 | &inet6_aftype,
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| 265 | #endif
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| 266 | &unspec_aftype,
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| 267 | NULL
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| 268 | };
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| 269 |
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| 270 | /* Check our protocol family table for this family. */
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[2725] | 271 | const struct aftype* FAST_FUNC get_aftype(const char *name)
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[821] | 272 | {
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[1765] | 273 | const struct aftype *const *afp;
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[821] | 274 |
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| 275 | afp = aftypes;
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| 276 | while (*afp != NULL) {
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[1765] | 277 | if (!strcmp((*afp)->name, name))
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[821] | 278 | return (*afp);
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| 279 | afp++;
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| 280 | }
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[1765] | 281 | return NULL;
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[821] | 282 | }
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| 283 |
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[1765] | 284 | /* Check our protocol family table for this family. */
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| 285 | static const struct aftype *get_afntype(int af)
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[821] | 286 | {
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[1765] | 287 | const struct aftype *const *afp;
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[821] | 288 |
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| 289 | afp = aftypes;
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| 290 | while (*afp != NULL) {
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| 291 | if ((*afp)->af == af)
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[1765] | 292 | return *afp;
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[821] | 293 | afp++;
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| 294 | }
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[1765] | 295 | return NULL;
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[821] | 296 | }
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| 297 |
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| 298 | struct user_net_device_stats {
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| 299 | unsigned long long rx_packets; /* total packets received */
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| 300 | unsigned long long tx_packets; /* total packets transmitted */
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| 301 | unsigned long long rx_bytes; /* total bytes received */
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| 302 | unsigned long long tx_bytes; /* total bytes transmitted */
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| 303 | unsigned long rx_errors; /* bad packets received */
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| 304 | unsigned long tx_errors; /* packet transmit problems */
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| 305 | unsigned long rx_dropped; /* no space in linux buffers */
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| 306 | unsigned long tx_dropped; /* no space available in linux */
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| 307 | unsigned long rx_multicast; /* multicast packets received */
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| 308 | unsigned long rx_compressed;
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| 309 | unsigned long tx_compressed;
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| 310 | unsigned long collisions;
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| 311 |
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| 312 | /* detailed rx_errors: */
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| 313 | unsigned long rx_length_errors;
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| 314 | unsigned long rx_over_errors; /* receiver ring buff overflow */
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| 315 | unsigned long rx_crc_errors; /* recved pkt with crc error */
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| 316 | unsigned long rx_frame_errors; /* recv'd frame alignment error */
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| 317 | unsigned long rx_fifo_errors; /* recv'r fifo overrun */
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| 318 | unsigned long rx_missed_errors; /* receiver missed packet */
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| 319 | /* detailed tx_errors */
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| 320 | unsigned long tx_aborted_errors;
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| 321 | unsigned long tx_carrier_errors;
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| 322 | unsigned long tx_fifo_errors;
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| 323 | unsigned long tx_heartbeat_errors;
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| 324 | unsigned long tx_window_errors;
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| 325 | };
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| 326 |
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| 327 | struct interface {
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| 328 | struct interface *next, *prev;
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[2725] | 329 | char name[IFNAMSIZ]; /* interface name */
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| 330 | short type; /* if type */
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| 331 | short flags; /* various flags */
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| 332 | int metric; /* routing metric */
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| 333 | int mtu; /* MTU value */
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| 334 | int tx_queue_len; /* transmit queue length */
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| 335 | struct ifmap map; /* hardware setup */
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| 336 | struct sockaddr addr; /* IP address */
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| 337 | struct sockaddr dstaddr; /* P-P IP address */
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| 338 | struct sockaddr broadaddr; /* IP broadcast address */
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| 339 | struct sockaddr netmask; /* IP network mask */
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[821] | 340 | int has_ip;
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[2725] | 341 | char hwaddr[32]; /* HW address */
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[821] | 342 | int statistics_valid;
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[2725] | 343 | struct user_net_device_stats stats; /* statistics */
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| 344 | int keepalive; /* keepalive value for SLIP */
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| 345 | int outfill; /* outfill value for SLIP */
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[821] | 346 | };
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| 347 |
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| 348 |
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[1765] | 349 | smallint interface_opt_a; /* show all interfaces */
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[821] | 350 |
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| 351 | static struct interface *int_list, *int_last;
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| 352 |
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| 353 |
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[1765] | 354 | #if 0
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[821] | 355 | /* like strcmp(), but knows about numbers */
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[1765] | 356 | except that the freshly added calls to xatoul() brf on ethernet aliases with
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| 357 | uClibc with e.g.: ife->name='lo' name='eth0:1'
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[821] | 358 | static int nstrcmp(const char *a, const char *b)
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| 359 | {
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| 360 | const char *a_ptr = a;
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| 361 | const char *b_ptr = b;
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| 362 |
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| 363 | while (*a == *b) {
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| 364 | if (*a == '\0') {
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| 365 | return 0;
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| 366 | }
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| 367 | if (!isdigit(*a) && isdigit(*(a+1))) {
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| 368 | a_ptr = a+1;
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| 369 | b_ptr = b+1;
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| 370 | }
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| 371 | a++;
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| 372 | b++;
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| 373 | }
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| 374 |
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| 375 | if (isdigit(*a) && isdigit(*b)) {
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[1765] | 376 | return xatoul(a_ptr) > xatoul(b_ptr) ? 1 : -1;
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[821] | 377 | }
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| 378 | return *a - *b;
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| 379 | }
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[1765] | 380 | #endif
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[821] | 381 |
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| 382 | static struct interface *add_interface(char *name)
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| 383 | {
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| 384 | struct interface *ife, **nextp, *new;
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| 385 |
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| 386 | for (ife = int_last; ife; ife = ife->prev) {
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[1765] | 387 | int n = /*n*/strcmp(ife->name, name);
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[821] | 388 |
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| 389 | if (n == 0)
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| 390 | return ife;
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| 391 | if (n < 0)
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| 392 | break;
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| 393 | }
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| 394 |
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| 395 | new = xzalloc(sizeof(*new));
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[2725] | 396 | strncpy_IFNAMSIZ(new->name, name);
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[821] | 397 | nextp = ife ? &ife->next : &int_list;
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| 398 | new->prev = ife;
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| 399 | new->next = *nextp;
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| 400 | if (new->next)
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| 401 | new->next->prev = new;
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| 402 | else
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| 403 | int_last = new;
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| 404 | *nextp = new;
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| 405 | return new;
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| 406 | }
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| 407 |
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| 408 | static char *get_name(char *name, char *p)
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| 409 | {
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| 410 | /* Extract <name> from nul-terminated p where p matches
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[2725] | 411 | * <name>: after leading whitespace.
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| 412 | * If match is not made, set name empty and return unchanged p
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| 413 | */
|
---|
| 414 | char *nameend;
|
---|
| 415 | char *namestart = skip_whitespace(p);
|
---|
| 416 |
|
---|
| 417 | nameend = namestart;
|
---|
| 418 | while (*nameend && *nameend != ':' && !isspace(*nameend))
|
---|
[821] | 419 | nameend++;
|
---|
[2725] | 420 | if (*nameend == ':') {
|
---|
| 421 | if ((nameend - namestart) < IFNAMSIZ) {
|
---|
| 422 | memcpy(name, namestart, nameend - namestart);
|
---|
| 423 | name[nameend - namestart] = '\0';
|
---|
| 424 | p = nameend;
|
---|
[821] | 425 | } else {
|
---|
| 426 | /* Interface name too large */
|
---|
[2725] | 427 | name[0] = '\0';
|
---|
[821] | 428 | }
|
---|
| 429 | } else {
|
---|
| 430 | /* trailing ':' not found - return empty */
|
---|
[2725] | 431 | name[0] = '\0';
|
---|
[821] | 432 | }
|
---|
| 433 | return p + 1;
|
---|
| 434 | }
|
---|
| 435 |
|
---|
| 436 | /* If scanf supports size qualifiers for %n conversions, then we can
|
---|
| 437 | * use a modified fmt that simply stores the position in the fields
|
---|
| 438 | * having no associated fields in the proc string. Of course, we need
|
---|
| 439 | * to zero them again when we're done. But that is smaller than the
|
---|
| 440 | * old approach of multiple scanf occurrences with large numbers of
|
---|
| 441 | * args. */
|
---|
| 442 |
|
---|
[1765] | 443 | /* static const char *const ss_fmt[] = { */
|
---|
[821] | 444 | /* "%lln%llu%lu%lu%lu%lu%ln%ln%lln%llu%lu%lu%lu%lu%lu", */
|
---|
| 445 | /* "%llu%llu%lu%lu%lu%lu%ln%ln%llu%llu%lu%lu%lu%lu%lu", */
|
---|
| 446 | /* "%llu%llu%lu%lu%lu%lu%lu%lu%llu%llu%lu%lu%lu%lu%lu%lu" */
|
---|
| 447 | /* }; */
|
---|
| 448 |
|
---|
| 449 | /* Lie about the size of the int pointed to for %n. */
|
---|
| 450 | #if INT_MAX == LONG_MAX
|
---|
[1765] | 451 | static const char *const ss_fmt[] = {
|
---|
[821] | 452 | "%n%llu%u%u%u%u%n%n%n%llu%u%u%u%u%u",
|
---|
| 453 | "%llu%llu%u%u%u%u%n%n%llu%llu%u%u%u%u%u",
|
---|
| 454 | "%llu%llu%u%u%u%u%u%u%llu%llu%u%u%u%u%u%u"
|
---|
| 455 | };
|
---|
| 456 | #else
|
---|
[1765] | 457 | static const char *const ss_fmt[] = {
|
---|
[821] | 458 | "%n%llu%lu%lu%lu%lu%n%n%n%llu%lu%lu%lu%lu%lu",
|
---|
| 459 | "%llu%llu%lu%lu%lu%lu%n%n%llu%llu%lu%lu%lu%lu%lu",
|
---|
| 460 | "%llu%llu%lu%lu%lu%lu%lu%lu%llu%llu%lu%lu%lu%lu%lu%lu"
|
---|
| 461 | };
|
---|
| 462 |
|
---|
| 463 | #endif
|
---|
| 464 |
|
---|
| 465 | static void get_dev_fields(char *bp, struct interface *ife, int procnetdev_vsn)
|
---|
| 466 | {
|
---|
| 467 | memset(&ife->stats, 0, sizeof(struct user_net_device_stats));
|
---|
| 468 |
|
---|
| 469 | sscanf(bp, ss_fmt[procnetdev_vsn],
|
---|
| 470 | &ife->stats.rx_bytes, /* missing for 0 */
|
---|
| 471 | &ife->stats.rx_packets,
|
---|
| 472 | &ife->stats.rx_errors,
|
---|
| 473 | &ife->stats.rx_dropped,
|
---|
| 474 | &ife->stats.rx_fifo_errors,
|
---|
| 475 | &ife->stats.rx_frame_errors,
|
---|
| 476 | &ife->stats.rx_compressed, /* missing for <= 1 */
|
---|
| 477 | &ife->stats.rx_multicast, /* missing for <= 1 */
|
---|
| 478 | &ife->stats.tx_bytes, /* missing for 0 */
|
---|
| 479 | &ife->stats.tx_packets,
|
---|
| 480 | &ife->stats.tx_errors,
|
---|
| 481 | &ife->stats.tx_dropped,
|
---|
| 482 | &ife->stats.tx_fifo_errors,
|
---|
| 483 | &ife->stats.collisions,
|
---|
| 484 | &ife->stats.tx_carrier_errors,
|
---|
| 485 | &ife->stats.tx_compressed /* missing for <= 1 */
|
---|
| 486 | );
|
---|
| 487 |
|
---|
| 488 | if (procnetdev_vsn <= 1) {
|
---|
| 489 | if (procnetdev_vsn == 0) {
|
---|
| 490 | ife->stats.rx_bytes = 0;
|
---|
| 491 | ife->stats.tx_bytes = 0;
|
---|
| 492 | }
|
---|
| 493 | ife->stats.rx_multicast = 0;
|
---|
| 494 | ife->stats.rx_compressed = 0;
|
---|
| 495 | ife->stats.tx_compressed = 0;
|
---|
| 496 | }
|
---|
| 497 | }
|
---|
| 498 |
|
---|
[2725] | 499 | static int procnetdev_version(char *buf)
|
---|
[821] | 500 | {
|
---|
| 501 | if (strstr(buf, "compressed"))
|
---|
| 502 | return 2;
|
---|
| 503 | if (strstr(buf, "bytes"))
|
---|
| 504 | return 1;
|
---|
| 505 | return 0;
|
---|
| 506 | }
|
---|
| 507 |
|
---|
[1765] | 508 | static int if_readconf(void)
|
---|
| 509 | {
|
---|
| 510 | int numreqs = 30;
|
---|
| 511 | struct ifconf ifc;
|
---|
| 512 | struct ifreq *ifr;
|
---|
| 513 | int n, err = -1;
|
---|
| 514 | int skfd;
|
---|
| 515 |
|
---|
| 516 | ifc.ifc_buf = NULL;
|
---|
| 517 |
|
---|
| 518 | /* SIOCGIFCONF currently seems to only work properly on AF_INET sockets
|
---|
| 519 | (as of 2.1.128) */
|
---|
| 520 | skfd = socket(AF_INET, SOCK_DGRAM, 0);
|
---|
| 521 | if (skfd < 0) {
|
---|
| 522 | bb_perror_msg("error: no inet socket available");
|
---|
| 523 | return -1;
|
---|
| 524 | }
|
---|
| 525 |
|
---|
| 526 | for (;;) {
|
---|
| 527 | ifc.ifc_len = sizeof(struct ifreq) * numreqs;
|
---|
| 528 | ifc.ifc_buf = xrealloc(ifc.ifc_buf, ifc.ifc_len);
|
---|
| 529 |
|
---|
| 530 | if (ioctl_or_warn(skfd, SIOCGIFCONF, &ifc) < 0) {
|
---|
| 531 | goto out;
|
---|
| 532 | }
|
---|
[2725] | 533 | if (ifc.ifc_len == (int)(sizeof(struct ifreq) * numreqs)) {
|
---|
[1765] | 534 | /* assume it overflowed and try again */
|
---|
| 535 | numreqs += 10;
|
---|
| 536 | continue;
|
---|
| 537 | }
|
---|
| 538 | break;
|
---|
| 539 | }
|
---|
| 540 |
|
---|
| 541 | ifr = ifc.ifc_req;
|
---|
| 542 | for (n = 0; n < ifc.ifc_len; n += sizeof(struct ifreq)) {
|
---|
| 543 | add_interface(ifr->ifr_name);
|
---|
| 544 | ifr++;
|
---|
| 545 | }
|
---|
| 546 | err = 0;
|
---|
| 547 |
|
---|
| 548 | out:
|
---|
| 549 | close(skfd);
|
---|
| 550 | free(ifc.ifc_buf);
|
---|
| 551 | return err;
|
---|
| 552 | }
|
---|
| 553 |
|
---|
[821] | 554 | static int if_readlist_proc(char *target)
|
---|
| 555 | {
|
---|
[1765] | 556 | static smallint proc_read;
|
---|
| 557 |
|
---|
[821] | 558 | FILE *fh;
|
---|
| 559 | char buf[512];
|
---|
| 560 | struct interface *ife;
|
---|
| 561 | int err, procnetdev_vsn;
|
---|
| 562 |
|
---|
| 563 | if (proc_read)
|
---|
| 564 | return 0;
|
---|
| 565 | if (!target)
|
---|
| 566 | proc_read = 1;
|
---|
| 567 |
|
---|
[2725] | 568 | fh = fopen_or_warn(_PATH_PROCNET_DEV, "r");
|
---|
[821] | 569 | if (!fh) {
|
---|
| 570 | return if_readconf();
|
---|
| 571 | }
|
---|
| 572 | fgets(buf, sizeof buf, fh); /* eat line */
|
---|
| 573 | fgets(buf, sizeof buf, fh);
|
---|
| 574 |
|
---|
| 575 | procnetdev_vsn = procnetdev_version(buf);
|
---|
| 576 |
|
---|
| 577 | err = 0;
|
---|
| 578 | while (fgets(buf, sizeof buf, fh)) {
|
---|
| 579 | char *s, name[128];
|
---|
| 580 |
|
---|
| 581 | s = get_name(name, buf);
|
---|
| 582 | ife = add_interface(name);
|
---|
| 583 | get_dev_fields(s, ife, procnetdev_vsn);
|
---|
| 584 | ife->statistics_valid = 1;
|
---|
| 585 | if (target && !strcmp(target, name))
|
---|
| 586 | break;
|
---|
| 587 | }
|
---|
| 588 | if (ferror(fh)) {
|
---|
[1765] | 589 | bb_perror_msg(_PATH_PROCNET_DEV);
|
---|
[821] | 590 | err = -1;
|
---|
| 591 | proc_read = 0;
|
---|
| 592 | }
|
---|
| 593 | fclose(fh);
|
---|
| 594 | return err;
|
---|
| 595 | }
|
---|
| 596 |
|
---|
| 597 | static int if_readlist(void)
|
---|
| 598 | {
|
---|
| 599 | int err = if_readlist_proc(NULL);
|
---|
[1765] | 600 | /* Needed in order to get ethN:M aliases */
|
---|
[821] | 601 | if (!err)
|
---|
| 602 | err = if_readconf();
|
---|
| 603 | return err;
|
---|
| 604 | }
|
---|
| 605 |
|
---|
| 606 | /* Fetch the interface configuration from the kernel. */
|
---|
| 607 | static int if_fetch(struct interface *ife)
|
---|
| 608 | {
|
---|
| 609 | struct ifreq ifr;
|
---|
| 610 | char *ifname = ife->name;
|
---|
[1765] | 611 | int skfd;
|
---|
[821] | 612 |
|
---|
[1765] | 613 | skfd = xsocket(AF_INET, SOCK_DGRAM, 0);
|
---|
| 614 |
|
---|
[2725] | 615 | strncpy_IFNAMSIZ(ifr.ifr_name, ifname);
|
---|
[1765] | 616 | if (ioctl(skfd, SIOCGIFFLAGS, &ifr) < 0) {
|
---|
| 617 | close(skfd);
|
---|
| 618 | return -1;
|
---|
| 619 | }
|
---|
[821] | 620 | ife->flags = ifr.ifr_flags;
|
---|
| 621 |
|
---|
[2725] | 622 | strncpy_IFNAMSIZ(ifr.ifr_name, ifname);
|
---|
[1765] | 623 | memset(ife->hwaddr, 0, 32);
|
---|
| 624 | if (ioctl(skfd, SIOCGIFHWADDR, &ifr) >= 0)
|
---|
[821] | 625 | memcpy(ife->hwaddr, ifr.ifr_hwaddr.sa_data, 8);
|
---|
| 626 |
|
---|
| 627 | ife->type = ifr.ifr_hwaddr.sa_family;
|
---|
| 628 |
|
---|
[2725] | 629 | strncpy_IFNAMSIZ(ifr.ifr_name, ifname);
|
---|
[1765] | 630 | ife->metric = 0;
|
---|
| 631 | if (ioctl(skfd, SIOCGIFMETRIC, &ifr) >= 0)
|
---|
[821] | 632 | ife->metric = ifr.ifr_metric;
|
---|
| 633 |
|
---|
[2725] | 634 | strncpy_IFNAMSIZ(ifr.ifr_name, ifname);
|
---|
[1765] | 635 | ife->mtu = 0;
|
---|
| 636 | if (ioctl(skfd, SIOCGIFMTU, &ifr) >= 0)
|
---|
[821] | 637 | ife->mtu = ifr.ifr_mtu;
|
---|
| 638 |
|
---|
[1765] | 639 | memset(&ife->map, 0, sizeof(struct ifmap));
|
---|
[821] | 640 | #ifdef SIOCGIFMAP
|
---|
[2725] | 641 | strncpy_IFNAMSIZ(ifr.ifr_name, ifname);
|
---|
[821] | 642 | if (ioctl(skfd, SIOCGIFMAP, &ifr) == 0)
|
---|
| 643 | ife->map = ifr.ifr_map;
|
---|
| 644 | #endif
|
---|
| 645 |
|
---|
| 646 | #ifdef HAVE_TXQUEUELEN
|
---|
[2725] | 647 | strncpy_IFNAMSIZ(ifr.ifr_name, ifname);
|
---|
[1765] | 648 | ife->tx_queue_len = -1; /* unknown value */
|
---|
| 649 | if (ioctl(skfd, SIOCGIFTXQLEN, &ifr) >= 0)
|
---|
[821] | 650 | ife->tx_queue_len = ifr.ifr_qlen;
|
---|
| 651 | #else
|
---|
| 652 | ife->tx_queue_len = -1; /* unknown value */
|
---|
| 653 | #endif
|
---|
| 654 |
|
---|
[2725] | 655 | strncpy_IFNAMSIZ(ifr.ifr_name, ifname);
|
---|
[1765] | 656 | ifr.ifr_addr.sa_family = AF_INET;
|
---|
| 657 | memset(&ife->addr, 0, sizeof(struct sockaddr));
|
---|
| 658 | if (ioctl(skfd, SIOCGIFADDR, &ifr) == 0) {
|
---|
| 659 | ife->has_ip = 1;
|
---|
| 660 | ife->addr = ifr.ifr_addr;
|
---|
[2725] | 661 | strncpy_IFNAMSIZ(ifr.ifr_name, ifname);
|
---|
[1765] | 662 | memset(&ife->dstaddr, 0, sizeof(struct sockaddr));
|
---|
| 663 | if (ioctl(skfd, SIOCGIFDSTADDR, &ifr) >= 0)
|
---|
| 664 | ife->dstaddr = ifr.ifr_dstaddr;
|
---|
[821] | 665 |
|
---|
[2725] | 666 | strncpy_IFNAMSIZ(ifr.ifr_name, ifname);
|
---|
[1765] | 667 | memset(&ife->broadaddr, 0, sizeof(struct sockaddr));
|
---|
| 668 | if (ioctl(skfd, SIOCGIFBRDADDR, &ifr) >= 0)
|
---|
| 669 | ife->broadaddr = ifr.ifr_broadaddr;
|
---|
[821] | 670 |
|
---|
[2725] | 671 | strncpy_IFNAMSIZ(ifr.ifr_name, ifname);
|
---|
[1765] | 672 | memset(&ife->netmask, 0, sizeof(struct sockaddr));
|
---|
| 673 | if (ioctl(skfd, SIOCGIFNETMASK, &ifr) >= 0)
|
---|
| 674 | ife->netmask = ifr.ifr_netmask;
|
---|
[821] | 675 | }
|
---|
| 676 |
|
---|
[1765] | 677 | close(skfd);
|
---|
[821] | 678 | return 0;
|
---|
| 679 | }
|
---|
| 680 |
|
---|
| 681 | static int do_if_fetch(struct interface *ife)
|
---|
| 682 | {
|
---|
| 683 | if (if_fetch(ife) < 0) {
|
---|
[1765] | 684 | const char *errmsg;
|
---|
[821] | 685 |
|
---|
| 686 | if (errno == ENODEV) {
|
---|
| 687 | /* Give better error message for this case. */
|
---|
| 688 | errmsg = "Device not found";
|
---|
| 689 | } else {
|
---|
| 690 | errmsg = strerror(errno);
|
---|
| 691 | }
|
---|
| 692 | bb_error_msg("%s: error fetching interface information: %s",
|
---|
| 693 | ife->name, errmsg);
|
---|
| 694 | return -1;
|
---|
| 695 | }
|
---|
| 696 | return 0;
|
---|
| 697 | }
|
---|
| 698 |
|
---|
| 699 | static const struct hwtype unspec_hwtype = {
|
---|
| 700 | .name = "unspec",
|
---|
| 701 | .title = "UNSPEC",
|
---|
| 702 | .type = -1,
|
---|
| 703 | .print = UNSPEC_print
|
---|
| 704 | };
|
---|
| 705 |
|
---|
| 706 | static const struct hwtype loop_hwtype = {
|
---|
| 707 | .name = "loop",
|
---|
| 708 | .title = "Local Loopback",
|
---|
| 709 | .type = ARPHRD_LOOPBACK
|
---|
| 710 | };
|
---|
| 711 |
|
---|
| 712 | /* Display an Ethernet address in readable format. */
|
---|
[2725] | 713 | static char* FAST_FUNC ether_print(unsigned char *ptr)
|
---|
[821] | 714 | {
|
---|
[1765] | 715 | static char *buff;
|
---|
[821] | 716 |
|
---|
[1765] | 717 | free(buff);
|
---|
| 718 | buff = xasprintf("%02X:%02X:%02X:%02X:%02X:%02X",
|
---|
[821] | 719 | (ptr[0] & 0377), (ptr[1] & 0377), (ptr[2] & 0377),
|
---|
| 720 | (ptr[3] & 0377), (ptr[4] & 0377), (ptr[5] & 0377)
|
---|
| 721 | );
|
---|
[1765] | 722 | return buff;
|
---|
[821] | 723 | }
|
---|
| 724 |
|
---|
[2725] | 725 | static int FAST_FUNC ether_input(const char *bufp, struct sockaddr *sap);
|
---|
[1765] | 726 |
|
---|
[821] | 727 | static const struct hwtype ether_hwtype = {
|
---|
[2725] | 728 | .name = "ether",
|
---|
| 729 | .title = "Ethernet",
|
---|
| 730 | .type = ARPHRD_ETHER,
|
---|
| 731 | .alen = ETH_ALEN,
|
---|
| 732 | .print = ether_print,
|
---|
| 733 | .input = ether_input
|
---|
[821] | 734 | };
|
---|
| 735 |
|
---|
[1765] | 736 | static unsigned hexchar2int(char c)
|
---|
| 737 | {
|
---|
| 738 | if (isdigit(c))
|
---|
| 739 | return c - '0';
|
---|
| 740 | c &= ~0x20; /* a -> A */
|
---|
| 741 | if ((unsigned)(c - 'A') <= 5)
|
---|
| 742 | return c - ('A' - 10);
|
---|
| 743 | return ~0U;
|
---|
| 744 | }
|
---|
| 745 |
|
---|
| 746 | /* Input an Ethernet address and convert to binary. */
|
---|
[2725] | 747 | static int FAST_FUNC ether_input(const char *bufp, struct sockaddr *sap)
|
---|
[1765] | 748 | {
|
---|
| 749 | unsigned char *ptr;
|
---|
| 750 | char c;
|
---|
| 751 | int i;
|
---|
| 752 | unsigned val;
|
---|
| 753 |
|
---|
| 754 | sap->sa_family = ether_hwtype.type;
|
---|
| 755 | ptr = (unsigned char*) sap->sa_data;
|
---|
| 756 |
|
---|
| 757 | i = 0;
|
---|
| 758 | while ((*bufp != '\0') && (i < ETH_ALEN)) {
|
---|
| 759 | val = hexchar2int(*bufp++) * 0x10;
|
---|
| 760 | if (val > 0xff) {
|
---|
| 761 | errno = EINVAL;
|
---|
| 762 | return -1;
|
---|
| 763 | }
|
---|
| 764 | c = *bufp;
|
---|
| 765 | if (c == ':' || c == 0)
|
---|
| 766 | val >>= 4;
|
---|
| 767 | else {
|
---|
| 768 | val |= hexchar2int(c);
|
---|
| 769 | if (val > 0xff) {
|
---|
| 770 | errno = EINVAL;
|
---|
| 771 | return -1;
|
---|
| 772 | }
|
---|
| 773 | }
|
---|
| 774 | if (c != 0)
|
---|
| 775 | bufp++;
|
---|
| 776 | *ptr++ = (unsigned char) val;
|
---|
| 777 | i++;
|
---|
| 778 |
|
---|
| 779 | /* We might get a semicolon here - not required. */
|
---|
| 780 | if (*bufp == ':') {
|
---|
| 781 | bufp++;
|
---|
| 782 | }
|
---|
| 783 | }
|
---|
| 784 | return 0;
|
---|
| 785 | }
|
---|
| 786 |
|
---|
[821] | 787 | static const struct hwtype ppp_hwtype = {
|
---|
| 788 | .name = "ppp",
|
---|
| 789 | .title = "Point-to-Point Protocol",
|
---|
| 790 | .type = ARPHRD_PPP
|
---|
| 791 | };
|
---|
| 792 |
|
---|
[1765] | 793 | #if ENABLE_FEATURE_IPV6
|
---|
[821] | 794 | static const struct hwtype sit_hwtype = {
|
---|
| 795 | .name = "sit",
|
---|
| 796 | .title = "IPv6-in-IPv4",
|
---|
| 797 | .type = ARPHRD_SIT,
|
---|
| 798 | .print = UNSPEC_print,
|
---|
| 799 | .suppress_null_addr = 1
|
---|
[1765] | 800 | };
|
---|
[821] | 801 | #endif
|
---|
[2725] | 802 | #if ENABLE_FEATURE_HWIB
|
---|
| 803 | static const struct hwtype ib_hwtype = {
|
---|
| 804 | .name = "infiniband",
|
---|
| 805 | .title = "InfiniBand",
|
---|
| 806 | .type = ARPHRD_INFINIBAND,
|
---|
| 807 | .alen = INFINIBAND_ALEN,
|
---|
| 808 | .print = UNSPEC_print,
|
---|
| 809 | .input = in_ib,
|
---|
| 810 | };
|
---|
| 811 | #endif
|
---|
[821] | 812 |
|
---|
[2725] | 813 |
|
---|
[1765] | 814 | static const struct hwtype *const hwtypes[] = {
|
---|
[821] | 815 | &loop_hwtype,
|
---|
| 816 | ðer_hwtype,
|
---|
| 817 | &ppp_hwtype,
|
---|
| 818 | &unspec_hwtype,
|
---|
[1765] | 819 | #if ENABLE_FEATURE_IPV6
|
---|
[821] | 820 | &sit_hwtype,
|
---|
| 821 | #endif
|
---|
[2725] | 822 | #if ENABLE_FEATURE_HWIB
|
---|
| 823 | &ib_hwtype,
|
---|
| 824 | #endif
|
---|
[821] | 825 | NULL
|
---|
| 826 | };
|
---|
| 827 |
|
---|
| 828 | #ifdef IFF_PORTSEL
|
---|
[1765] | 829 | static const char *const if_port_text[] = {
|
---|
[821] | 830 | /* Keep in step with <linux/netdevice.h> */
|
---|
| 831 | "unknown",
|
---|
| 832 | "10base2",
|
---|
| 833 | "10baseT",
|
---|
| 834 | "AUI",
|
---|
| 835 | "100baseT",
|
---|
| 836 | "100baseTX",
|
---|
| 837 | "100baseFX",
|
---|
| 838 | NULL
|
---|
| 839 | };
|
---|
| 840 | #endif
|
---|
| 841 |
|
---|
| 842 | /* Check our hardware type table for this type. */
|
---|
[2725] | 843 | const struct hwtype* FAST_FUNC get_hwtype(const char *name)
|
---|
[821] | 844 | {
|
---|
[1765] | 845 | const struct hwtype *const *hwp;
|
---|
[821] | 846 |
|
---|
| 847 | hwp = hwtypes;
|
---|
| 848 | while (*hwp != NULL) {
|
---|
[1765] | 849 | if (!strcmp((*hwp)->name, name))
|
---|
[821] | 850 | return (*hwp);
|
---|
| 851 | hwp++;
|
---|
| 852 | }
|
---|
[1765] | 853 | return NULL;
|
---|
[821] | 854 | }
|
---|
| 855 |
|
---|
[1765] | 856 | /* Check our hardware type table for this type. */
|
---|
[2725] | 857 | const struct hwtype* FAST_FUNC get_hwntype(int type)
|
---|
[1765] | 858 | {
|
---|
| 859 | const struct hwtype *const *hwp;
|
---|
| 860 |
|
---|
| 861 | hwp = hwtypes;
|
---|
| 862 | while (*hwp != NULL) {
|
---|
| 863 | if ((*hwp)->type == type)
|
---|
| 864 | return *hwp;
|
---|
| 865 | hwp++;
|
---|
| 866 | }
|
---|
| 867 | return NULL;
|
---|
| 868 | }
|
---|
| 869 |
|
---|
[821] | 870 | /* return 1 if address is all zeros */
|
---|
| 871 | static int hw_null_address(const struct hwtype *hw, void *ap)
|
---|
| 872 | {
|
---|
[2725] | 873 | int i;
|
---|
[821] | 874 | unsigned char *address = (unsigned char *) ap;
|
---|
| 875 |
|
---|
| 876 | for (i = 0; i < hw->alen; i++)
|
---|
| 877 | if (address[i])
|
---|
| 878 | return 0;
|
---|
| 879 | return 1;
|
---|
| 880 | }
|
---|
| 881 |
|
---|
[1765] | 882 | static const char TRext[] ALIGN1 = "\0\0\0Ki\0Mi\0Gi\0Ti";
|
---|
[821] | 883 |
|
---|
| 884 | static void print_bytes_scaled(unsigned long long ull, const char *end)
|
---|
| 885 | {
|
---|
| 886 | unsigned long long int_part;
|
---|
| 887 | const char *ext;
|
---|
| 888 | unsigned int frac_part;
|
---|
| 889 | int i;
|
---|
| 890 |
|
---|
| 891 | frac_part = 0;
|
---|
| 892 | ext = TRext;
|
---|
| 893 | int_part = ull;
|
---|
| 894 | i = 4;
|
---|
| 895 | do {
|
---|
| 896 | if (int_part >= 1024) {
|
---|
| 897 | frac_part = ((((unsigned int) int_part) & (1024-1)) * 10) / 1024;
|
---|
| 898 | int_part /= 1024;
|
---|
| 899 | ext += 3; /* KiB, MiB, GiB, TiB */
|
---|
| 900 | }
|
---|
| 901 | --i;
|
---|
| 902 | } while (i);
|
---|
| 903 |
|
---|
| 904 | printf("X bytes:%llu (%llu.%u %sB)%s", ull, int_part, frac_part, ext, end);
|
---|
| 905 | }
|
---|
| 906 |
|
---|
| 907 |
|
---|
[1765] | 908 | #ifdef HAVE_AFINET6
|
---|
[2725] | 909 | #define IPV6_ADDR_ANY 0x0000U
|
---|
| 910 |
|
---|
| 911 | #define IPV6_ADDR_UNICAST 0x0001U
|
---|
| 912 | #define IPV6_ADDR_MULTICAST 0x0002U
|
---|
| 913 | #define IPV6_ADDR_ANYCAST 0x0004U
|
---|
| 914 |
|
---|
| 915 | #define IPV6_ADDR_LOOPBACK 0x0010U
|
---|
| 916 | #define IPV6_ADDR_LINKLOCAL 0x0020U
|
---|
| 917 | #define IPV6_ADDR_SITELOCAL 0x0040U
|
---|
| 918 |
|
---|
| 919 | #define IPV6_ADDR_COMPATv4 0x0080U
|
---|
| 920 |
|
---|
| 921 | #define IPV6_ADDR_SCOPE_MASK 0x00f0U
|
---|
| 922 |
|
---|
| 923 | #define IPV6_ADDR_MAPPED 0x1000U
|
---|
| 924 | #define IPV6_ADDR_RESERVED 0x2000U /* reserved address space */
|
---|
| 925 |
|
---|
| 926 |
|
---|
| 927 | static void ife_print6(struct interface *ptr)
|
---|
| 928 | {
|
---|
[821] | 929 | FILE *f;
|
---|
| 930 | char addr6[40], devname[20];
|
---|
| 931 | struct sockaddr_in6 sap;
|
---|
| 932 | int plen, scope, dad_status, if_idx;
|
---|
| 933 | char addr6p[8][5];
|
---|
[2725] | 934 |
|
---|
| 935 | f = fopen_for_read(_PATH_PROCNET_IFINET6);
|
---|
| 936 | if (f == NULL)
|
---|
| 937 | return;
|
---|
| 938 |
|
---|
| 939 | while (fscanf
|
---|
| 940 | (f, "%4s%4s%4s%4s%4s%4s%4s%4s %08x %02x %02x %02x %20s\n",
|
---|
| 941 | addr6p[0], addr6p[1], addr6p[2], addr6p[3], addr6p[4],
|
---|
| 942 | addr6p[5], addr6p[6], addr6p[7], &if_idx, &plen, &scope,
|
---|
| 943 | &dad_status, devname) != EOF
|
---|
| 944 | ) {
|
---|
| 945 | if (!strcmp(devname, ptr->name)) {
|
---|
| 946 | sprintf(addr6, "%s:%s:%s:%s:%s:%s:%s:%s",
|
---|
| 947 | addr6p[0], addr6p[1], addr6p[2], addr6p[3],
|
---|
| 948 | addr6p[4], addr6p[5], addr6p[6], addr6p[7]);
|
---|
| 949 | inet_pton(AF_INET6, addr6,
|
---|
| 950 | (struct sockaddr *) &sap.sin6_addr);
|
---|
| 951 | sap.sin6_family = AF_INET6;
|
---|
| 952 | printf(" inet6 addr: %s/%d",
|
---|
[3232] | 953 | INET6_sprint((struct sockaddr *) &sap, 1),
|
---|
| 954 | plen);
|
---|
[2725] | 955 | printf(" Scope:");
|
---|
| 956 | switch (scope & IPV6_ADDR_SCOPE_MASK) {
|
---|
| 957 | case 0:
|
---|
| 958 | puts("Global");
|
---|
| 959 | break;
|
---|
| 960 | case IPV6_ADDR_LINKLOCAL:
|
---|
| 961 | puts("Link");
|
---|
| 962 | break;
|
---|
| 963 | case IPV6_ADDR_SITELOCAL:
|
---|
| 964 | puts("Site");
|
---|
| 965 | break;
|
---|
| 966 | case IPV6_ADDR_COMPATv4:
|
---|
| 967 | puts("Compat");
|
---|
| 968 | break;
|
---|
| 969 | case IPV6_ADDR_LOOPBACK:
|
---|
| 970 | puts("Host");
|
---|
| 971 | break;
|
---|
| 972 | default:
|
---|
| 973 | puts("Unknown");
|
---|
| 974 | }
|
---|
| 975 | }
|
---|
| 976 | }
|
---|
| 977 | fclose(f);
|
---|
| 978 | }
|
---|
| 979 | #else
|
---|
| 980 | #define ife_print6(a) ((void)0)
|
---|
[821] | 981 | #endif
|
---|
| 982 |
|
---|
[2725] | 983 | static void ife_print(struct interface *ptr)
|
---|
| 984 | {
|
---|
| 985 | const struct aftype *ap;
|
---|
| 986 | const struct hwtype *hw;
|
---|
| 987 | int hf;
|
---|
| 988 | int can_compress = 0;
|
---|
| 989 |
|
---|
[821] | 990 | ap = get_afntype(ptr->addr.sa_family);
|
---|
| 991 | if (ap == NULL)
|
---|
| 992 | ap = get_afntype(0);
|
---|
| 993 |
|
---|
| 994 | hf = ptr->type;
|
---|
| 995 |
|
---|
| 996 | if (hf == ARPHRD_CSLIP || hf == ARPHRD_CSLIP6)
|
---|
| 997 | can_compress = 1;
|
---|
| 998 |
|
---|
| 999 | hw = get_hwntype(hf);
|
---|
| 1000 | if (hw == NULL)
|
---|
| 1001 | hw = get_hwntype(-1);
|
---|
| 1002 |
|
---|
[2725] | 1003 | printf("%-9s Link encap:%s ", ptr->name, hw->title);
|
---|
[821] | 1004 | /* For some hardware types (eg Ash, ATM) we don't print the
|
---|
| 1005 | hardware address if it's null. */
|
---|
[2725] | 1006 | if (hw->print != NULL
|
---|
| 1007 | && !(hw_null_address(hw, ptr->hwaddr) && hw->suppress_null_addr)
|
---|
| 1008 | ) {
|
---|
[821] | 1009 | printf("HWaddr %s ", hw->print((unsigned char *)ptr->hwaddr));
|
---|
[2725] | 1010 | }
|
---|
[821] | 1011 | #ifdef IFF_PORTSEL
|
---|
| 1012 | if (ptr->flags & IFF_PORTSEL) {
|
---|
| 1013 | printf("Media:%s", if_port_text[ptr->map.port] /* [0] */);
|
---|
| 1014 | if (ptr->flags & IFF_AUTOMEDIA)
|
---|
| 1015 | printf("(auto)");
|
---|
| 1016 | }
|
---|
| 1017 | #endif
|
---|
[2725] | 1018 | bb_putchar('\n');
|
---|
[821] | 1019 |
|
---|
| 1020 | if (ptr->has_ip) {
|
---|
| 1021 | printf(" %s addr:%s ", ap->name,
|
---|
[3232] | 1022 | ap->sprint(&ptr->addr, 1));
|
---|
[821] | 1023 | if (ptr->flags & IFF_POINTOPOINT) {
|
---|
| 1024 | printf(" P-t-P:%s ", ap->sprint(&ptr->dstaddr, 1));
|
---|
| 1025 | }
|
---|
| 1026 | if (ptr->flags & IFF_BROADCAST) {
|
---|
| 1027 | printf(" Bcast:%s ", ap->sprint(&ptr->broadaddr, 1));
|
---|
| 1028 | }
|
---|
| 1029 | printf(" Mask:%s\n", ap->sprint(&ptr->netmask, 1));
|
---|
| 1030 | }
|
---|
| 1031 |
|
---|
[2725] | 1032 | ife_print6(ptr);
|
---|
[821] | 1033 |
|
---|
| 1034 | printf(" ");
|
---|
| 1035 | /* DONT FORGET TO ADD THE FLAGS IN ife_print_short, too */
|
---|
| 1036 |
|
---|
| 1037 | if (ptr->flags == 0) {
|
---|
| 1038 | printf("[NO FLAGS] ");
|
---|
| 1039 | } else {
|
---|
[1765] | 1040 | static const char ife_print_flags_strs[] ALIGN1 =
|
---|
| 1041 | "UP\0"
|
---|
| 1042 | "BROADCAST\0"
|
---|
| 1043 | "DEBUG\0"
|
---|
| 1044 | "LOOPBACK\0"
|
---|
| 1045 | "POINTOPOINT\0"
|
---|
| 1046 | "NOTRAILERS\0"
|
---|
| 1047 | "RUNNING\0"
|
---|
| 1048 | "NOARP\0"
|
---|
| 1049 | "PROMISC\0"
|
---|
| 1050 | "ALLMULTI\0"
|
---|
| 1051 | "SLAVE\0"
|
---|
| 1052 | "MASTER\0"
|
---|
| 1053 | "MULTICAST\0"
|
---|
| 1054 | #ifdef HAVE_DYNAMIC
|
---|
| 1055 | "DYNAMIC\0"
|
---|
| 1056 | #endif
|
---|
| 1057 | ;
|
---|
| 1058 | static const unsigned short ife_print_flags_mask[] ALIGN2 = {
|
---|
| 1059 | IFF_UP,
|
---|
| 1060 | IFF_BROADCAST,
|
---|
| 1061 | IFF_DEBUG,
|
---|
| 1062 | IFF_LOOPBACK,
|
---|
| 1063 | IFF_POINTOPOINT,
|
---|
| 1064 | IFF_NOTRAILERS,
|
---|
| 1065 | IFF_RUNNING,
|
---|
| 1066 | IFF_NOARP,
|
---|
| 1067 | IFF_PROMISC,
|
---|
| 1068 | IFF_ALLMULTI,
|
---|
| 1069 | IFF_SLAVE,
|
---|
| 1070 | IFF_MASTER,
|
---|
| 1071 | IFF_MULTICAST
|
---|
| 1072 | #ifdef HAVE_DYNAMIC
|
---|
| 1073 | ,IFF_DYNAMIC
|
---|
| 1074 | #endif
|
---|
| 1075 | };
|
---|
| 1076 | const unsigned short *mask = ife_print_flags_mask;
|
---|
| 1077 | const char *str = ife_print_flags_strs;
|
---|
[821] | 1078 | do {
|
---|
[1765] | 1079 | if (ptr->flags & *mask) {
|
---|
| 1080 | printf("%s ", str);
|
---|
[821] | 1081 | }
|
---|
[1765] | 1082 | mask++;
|
---|
| 1083 | str += strlen(str) + 1;
|
---|
| 1084 | } while (*str);
|
---|
[821] | 1085 | }
|
---|
| 1086 |
|
---|
| 1087 | /* DONT FORGET TO ADD THE FLAGS IN ife_print_short */
|
---|
| 1088 | printf(" MTU:%d Metric:%d", ptr->mtu, ptr->metric ? ptr->metric : 1);
|
---|
| 1089 | #ifdef SIOCSKEEPALIVE
|
---|
| 1090 | if (ptr->outfill || ptr->keepalive)
|
---|
| 1091 | printf(" Outfill:%d Keepalive:%d", ptr->outfill, ptr->keepalive);
|
---|
| 1092 | #endif
|
---|
[2725] | 1093 | bb_putchar('\n');
|
---|
[821] | 1094 |
|
---|
| 1095 | /* If needed, display the interface statistics. */
|
---|
| 1096 |
|
---|
| 1097 | if (ptr->statistics_valid) {
|
---|
| 1098 | /* XXX: statistics are currently only printed for the primary address,
|
---|
| 1099 | * not for the aliases, although strictly speaking they're shared
|
---|
| 1100 | * by all addresses.
|
---|
| 1101 | */
|
---|
| 1102 | printf(" ");
|
---|
| 1103 |
|
---|
| 1104 | printf("RX packets:%llu errors:%lu dropped:%lu overruns:%lu frame:%lu\n",
|
---|
[3232] | 1105 | ptr->stats.rx_packets, ptr->stats.rx_errors,
|
---|
| 1106 | ptr->stats.rx_dropped, ptr->stats.rx_fifo_errors,
|
---|
| 1107 | ptr->stats.rx_frame_errors);
|
---|
[821] | 1108 | if (can_compress)
|
---|
| 1109 | printf(" compressed:%lu\n",
|
---|
[3232] | 1110 | ptr->stats.rx_compressed);
|
---|
[821] | 1111 | printf(" ");
|
---|
| 1112 | printf("TX packets:%llu errors:%lu dropped:%lu overruns:%lu carrier:%lu\n",
|
---|
[3232] | 1113 | ptr->stats.tx_packets, ptr->stats.tx_errors,
|
---|
| 1114 | ptr->stats.tx_dropped, ptr->stats.tx_fifo_errors,
|
---|
| 1115 | ptr->stats.tx_carrier_errors);
|
---|
[821] | 1116 | printf(" collisions:%lu ", ptr->stats.collisions);
|
---|
| 1117 | if (can_compress)
|
---|
| 1118 | printf("compressed:%lu ", ptr->stats.tx_compressed);
|
---|
| 1119 | if (ptr->tx_queue_len != -1)
|
---|
| 1120 | printf("txqueuelen:%d ", ptr->tx_queue_len);
|
---|
| 1121 | printf("\n R");
|
---|
| 1122 | print_bytes_scaled(ptr->stats.rx_bytes, " T");
|
---|
| 1123 | print_bytes_scaled(ptr->stats.tx_bytes, "\n");
|
---|
| 1124 | }
|
---|
| 1125 |
|
---|
[2725] | 1126 | if (ptr->map.irq || ptr->map.mem_start
|
---|
| 1127 | || ptr->map.dma || ptr->map.base_addr
|
---|
| 1128 | ) {
|
---|
[821] | 1129 | printf(" ");
|
---|
| 1130 | if (ptr->map.irq)
|
---|
| 1131 | printf("Interrupt:%d ", ptr->map.irq);
|
---|
[3232] | 1132 | if (ptr->map.base_addr >= 0x100) /* Only print devices using it for I/O maps */
|
---|
[821] | 1133 | printf("Base address:0x%lx ",
|
---|
[3232] | 1134 | (unsigned long) ptr->map.base_addr);
|
---|
[821] | 1135 | if (ptr->map.mem_start) {
|
---|
| 1136 | printf("Memory:%lx-%lx ", ptr->map.mem_start,
|
---|
[3232] | 1137 | ptr->map.mem_end);
|
---|
[821] | 1138 | }
|
---|
| 1139 | if (ptr->map.dma)
|
---|
| 1140 | printf("DMA chan:%x ", ptr->map.dma);
|
---|
[2725] | 1141 | bb_putchar('\n');
|
---|
[821] | 1142 | }
|
---|
[2725] | 1143 | bb_putchar('\n');
|
---|
[821] | 1144 | }
|
---|
| 1145 |
|
---|
[1765] | 1146 | static int do_if_print(struct interface *ife) /*, int *opt_a)*/
|
---|
[821] | 1147 | {
|
---|
| 1148 | int res;
|
---|
| 1149 |
|
---|
| 1150 | res = do_if_fetch(ife);
|
---|
| 1151 | if (res >= 0) {
|
---|
[1765] | 1152 | if ((ife->flags & IFF_UP) || interface_opt_a)
|
---|
[821] | 1153 | ife_print(ife);
|
---|
| 1154 | }
|
---|
| 1155 | return res;
|
---|
| 1156 | }
|
---|
| 1157 |
|
---|
| 1158 | static struct interface *lookup_interface(char *name)
|
---|
| 1159 | {
|
---|
| 1160 | struct interface *ife = NULL;
|
---|
| 1161 |
|
---|
| 1162 | if (if_readlist_proc(name) < 0)
|
---|
| 1163 | return NULL;
|
---|
| 1164 | ife = add_interface(name);
|
---|
| 1165 | return ife;
|
---|
| 1166 | }
|
---|
| 1167 |
|
---|
[1765] | 1168 | #ifdef UNUSED
|
---|
| 1169 | static int for_all_interfaces(int (*doit) (struct interface *, void *),
|
---|
[3232] | 1170 | void *cookie)
|
---|
[1765] | 1171 | {
|
---|
| 1172 | struct interface *ife;
|
---|
| 1173 |
|
---|
| 1174 | if (!int_list && (if_readlist() < 0))
|
---|
| 1175 | return -1;
|
---|
| 1176 | for (ife = int_list; ife; ife = ife->next) {
|
---|
| 1177 | int err = doit(ife, cookie);
|
---|
| 1178 | if (err)
|
---|
| 1179 | return err;
|
---|
| 1180 | }
|
---|
| 1181 | return 0;
|
---|
| 1182 | }
|
---|
| 1183 | #endif
|
---|
| 1184 |
|
---|
[821] | 1185 | /* for ipv4 add/del modes */
|
---|
| 1186 | static int if_print(char *ifname)
|
---|
| 1187 | {
|
---|
[1765] | 1188 | struct interface *ife;
|
---|
[821] | 1189 | int res;
|
---|
| 1190 |
|
---|
| 1191 | if (!ifname) {
|
---|
[1765] | 1192 | /*res = for_all_interfaces(do_if_print, &interface_opt_a);*/
|
---|
| 1193 | if (!int_list && (if_readlist() < 0))
|
---|
| 1194 | return -1;
|
---|
| 1195 | for (ife = int_list; ife; ife = ife->next) {
|
---|
| 1196 | int err = do_if_print(ife); /*, &interface_opt_a);*/
|
---|
| 1197 | if (err)
|
---|
| 1198 | return err;
|
---|
| 1199 | }
|
---|
| 1200 | return 0;
|
---|
[821] | 1201 | }
|
---|
[1765] | 1202 | ife = lookup_interface(ifname);
|
---|
| 1203 | res = do_if_fetch(ife);
|
---|
| 1204 | if (res >= 0)
|
---|
| 1205 | ife_print(ife);
|
---|
[821] | 1206 | return res;
|
---|
| 1207 | }
|
---|
| 1208 |
|
---|
[2725] | 1209 | #if ENABLE_FEATURE_HWIB
|
---|
| 1210 | /* Input an Infiniband address and convert to binary. */
|
---|
| 1211 | int FAST_FUNC in_ib(const char *bufp, struct sockaddr *sap)
|
---|
[821] | 1212 | {
|
---|
[2725] | 1213 | sap->sa_family = ib_hwtype.type;
|
---|
| 1214 | //TODO: error check?
|
---|
| 1215 | hex2bin((char*)sap->sa_data, bufp, INFINIBAND_ALEN);
|
---|
| 1216 | # ifdef HWIB_DEBUG
|
---|
| 1217 | fprintf(stderr, "in_ib(%s): %s\n", bufp, UNSPEC_print(sap->sa_data));
|
---|
| 1218 | # endif
|
---|
| 1219 | return 0;
|
---|
| 1220 | }
|
---|
| 1221 | #endif
|
---|
| 1222 |
|
---|
| 1223 | int FAST_FUNC display_interfaces(char *ifname)
|
---|
| 1224 | {
|
---|
[821] | 1225 | int status;
|
---|
| 1226 |
|
---|
[1765] | 1227 | status = if_print(ifname);
|
---|
[821] | 1228 |
|
---|
[1765] | 1229 | return (status < 0); /* status < 0 == 1 -- error */
|
---|
[821] | 1230 | }
|
---|