From b4c823211d7bc2e1b05e891e58a465f26ec05ff8 Mon Sep 17 00:00:00 2001 From: Rob Landley Date: Tue, 22 Nov 2005 07:52:54 +0000 Subject: Move interface.c to networking directory since it's only used by ifconfig. --- libbb/Makefile.in | 1 - libbb/interface.c | 2093 ------------------------------------------------ networking/Makefile.in | 2 +- networking/interface.c | 2093 ++++++++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 2094 insertions(+), 2095 deletions(-) delete mode 100644 libbb/interface.c create mode 100644 networking/interface.c diff --git a/libbb/Makefile.in b/libbb/Makefile.in index 37c25f96c..35541231b 100644 --- a/libbb/Makefile.in +++ b/libbb/Makefile.in @@ -37,7 +37,6 @@ LIBBB_SRC-y:= \ bb_echo.c LIBBB_SRC-$(CONFIG_FEATURE_SHADOWPASSWDS)+= pwd2spwd.c -LIBBB_SRC-$(CONFIG_IFCONFIG)+=interface.c LIBBB_OBJS=$(patsubst %.c,$(LIBBB_DIR)%.o, $(LIBBB_SRC-y)) diff --git a/libbb/interface.c b/libbb/interface.c deleted file mode 100644 index ce7d67da7..000000000 --- a/libbb/interface.c +++ /dev/null @@ -1,2093 +0,0 @@ -/* - * stolen from net-tools-1.59 and stripped down for busybox by - * Erik Andersen - * - * Heavily modified by Manuel Novoa III Mar 12, 2001 - * - * Pruned unused code using KEEP_UNUSED define. - * Added print_bytes_scaled function to reduce code size. - * Added some (potentially) missing defines. - * Improved display support for -a and for a named interface. - * - * ----------------------------------------------------------- - * - * ifconfig This file contains an implementation of the command - * that either displays or sets the characteristics of - * one or more of the system's networking interfaces. - * - * Version: $Id: interface.c,v 1.25 2004/08/26 21:45:21 andersen Exp $ - * - * Author: Fred N. van Kempen, - * and others. Copyright 1993 MicroWalt Corporation - * - * This program is free software; you can redistribute it - * and/or modify it under the terms of the GNU General - * Public License as published by the Free Software - * Foundation; either version 2 of the License, or (at - * your option) any later version. - * - * Patched to support 'add' and 'del' keywords for INET(4) addresses - * by Mrs. Brisby - * - * {1.34} - 19980630 - Arnaldo Carvalho de Melo - * - gettext instead of catgets for i18n - * 10/1998 - Andi Kleen. Use interface list primitives. - * 20001008 - Bernd Eckenfels, Patch from RH for setting mtu - * (default AF was wrong) - */ - -/* #define KEEP_UNUSED */ - -/* - * - * Protocol Families. - * - */ -#define HAVE_AFINET 1 -#undef HAVE_AFIPX -#undef HAVE_AFATALK -#undef HAVE_AFNETROM -#undef HAVE_AFX25 -#undef HAVE_AFECONET -#undef HAVE_AFASH - -/* - * - * Device Hardware types. - * - */ -#define HAVE_HWETHER 1 -#define HAVE_HWPPP 1 -#undef HAVE_HWSLIP - - -#include "inet_common.h" -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include "libbb.h" - -#ifdef CONFIG_FEATURE_IPV6 -# define HAVE_AFINET6 1 -#else -# undef HAVE_AFINET6 -#endif - -#define _(x) x -#define _PATH_PROCNET_DEV "/proc/net/dev" -#define _PATH_PROCNET_IFINET6 "/proc/net/if_inet6" -#define new(p) ((p) = xcalloc(1,sizeof(*(p)))) -#define KRELEASE(maj,min,patch) ((maj) * 65536 + (min)*256 + (patch)) - -#ifdef HAVE_HWSLIP -#include -#endif - -#if HAVE_AFINET6 - -#ifndef _LINUX_IN6_H -/* - * This is in linux/include/net/ipv6.h. - */ - -struct in6_ifreq { - struct in6_addr ifr6_addr; - uint32_t ifr6_prefixlen; - unsigned int ifr6_ifindex; -}; - -#endif - -#endif /* HAVE_AFINET6 */ - -#if HAVE_AFIPX -#if (__GLIBC__ >= 2) && (__GLIBC_MINOR__ >= 1) -#include -#endif -#endif - -/* Defines for glibc2.0 users. */ -#ifndef SIOCSIFTXQLEN -#define SIOCSIFTXQLEN 0x8943 -#define SIOCGIFTXQLEN 0x8942 -#endif - -/* ifr_qlen is ifru_ivalue, but it isn't present in 2.0 kernel headers */ -#ifndef ifr_qlen -#define ifr_qlen ifr_ifru.ifru_mtu -#endif - -#ifndef HAVE_TXQUEUELEN -#define HAVE_TXQUEUELEN 1 -#endif - -#ifndef IFF_DYNAMIC -#define IFF_DYNAMIC 0x8000 /* dialup device with changing addresses */ -#endif - -/* This structure defines protocol families and their handlers. */ -struct aftype { - const char *name; - const char *title; - int af; - int alen; - char *(*print) (unsigned char *); - char *(*sprint) (struct sockaddr *, int numeric); - int (*input) (int type, char *bufp, struct sockaddr *); - void (*herror) (char *text); - int (*rprint) (int options); - int (*rinput) (int typ, int ext, char **argv); - - /* may modify src */ - int (*getmask) (char *src, struct sockaddr * mask, char *name); - - int fd; - char *flag_file; -}; - -#ifdef KEEP_UNUSED - -static int flag_unx; - -#ifdef HAVE_AFIPX -static int flag_ipx; -#endif -#ifdef HAVE_AFX25 -static int flag_ax25; -#endif -#ifdef HAVE_AFATALK -static int flag_ddp; -#endif -#ifdef HAVE_AFNETROM -static int flag_netrom; -#endif -static int flag_inet; - -#ifdef HAVE_AFINET6 -static int flag_inet6; -#endif -#ifdef HAVE_AFECONET -static int flag_econet; -#endif -#ifdef HAVE_AFX25 -static int flag_x25 = 0; -#endif -#ifdef HAVE_AFASH -static int flag_ash; -#endif - - -static struct aftrans_t { - char *alias; - char *name; - int *flag; -} aftrans[] = { - -#ifdef HAVE_AFX25 - { - "ax25", "ax25", &flag_ax25}, -#endif - { - "ip", "inet", &flag_inet}, -#ifdef HAVE_AFINET6 - { - "ip6", "inet6", &flag_inet6}, -#endif -#ifdef HAVE_AFIPX - { - "ipx", "ipx", &flag_ipx}, -#endif -#ifdef HAVE_AFATALK - { - "appletalk", "ddp", &flag_ddp}, -#endif -#ifdef HAVE_AFNETROM - { - "netrom", "netrom", &flag_netrom}, -#endif - { - "inet", "inet", &flag_inet}, -#ifdef HAVE_AFINET6 - { - "inet6", "inet6", &flag_inet6}, -#endif -#ifdef HAVE_AFATALK - { - "ddp", "ddp", &flag_ddp}, -#endif - { - "unix", "unix", &flag_unx}, { - "tcpip", "inet", &flag_inet}, -#ifdef HAVE_AFECONET - { - "econet", "ec", &flag_econet}, -#endif -#ifdef HAVE_AFX25 - { - "x25", "x25", &flag_x25}, -#endif -#ifdef HAVE_AFASH - { - "ash", "ash", &flag_ash}, -#endif - { - 0, 0, 0} -}; - -static char afname[256] = ""; -#endif /* KEEP_UNUSED */ - -#if HAVE_AFUNIX - -/* Display a UNIX domain address. */ -static char *UNIX_print(unsigned char *ptr) -{ - return (ptr); -} - - -/* Display a UNIX domain address. */ -static char *UNIX_sprint(struct sockaddr *sap, int numeric) -{ - static char buf[64]; - - if (sap->sa_family == 0xFFFF || sap->sa_family == 0) - return safe_strncpy(buf, _("[NONE SET]"), sizeof(buf)); - return (UNIX_print(sap->sa_data)); -} - - -static struct aftype unix_aftype = { - "unix", "UNIX Domain", AF_UNIX, 0, - UNIX_print, UNIX_sprint, NULL, NULL, - NULL, NULL, NULL, - -1, - "/proc/net/unix" -}; -#endif /* HAVE_AFUNIX */ - -#if HAVE_AFINET - -#ifdef KEEP_UNUSED -static void INET_reserror(char *text) -{ - herror(text); -} - -/* Display an Internet socket address. */ -static char *INET_print(unsigned char *ptr) -{ - return (inet_ntoa((*(struct in_addr *) ptr))); -} -#endif /* KEEP_UNUSED */ - -/* Display an Internet socket address. */ -static char *INET_sprint(struct sockaddr *sap, int numeric) -{ - static char buff[128]; - - if (sap->sa_family == 0xFFFF || sap->sa_family == 0) - return safe_strncpy(buff, _("[NONE SET]"), sizeof(buff)); - - if (INET_rresolve(buff, sizeof(buff), (struct sockaddr_in *) sap, - numeric, 0xffffff00) != 0) - return (NULL); - - return (buff); -} - -#ifdef KEEP_UNUSED -static char *INET_sprintmask(struct sockaddr *sap, int numeric, - unsigned int netmask) -{ - static char buff[128]; - - if (sap->sa_family == 0xFFFF || sap->sa_family == 0) - return safe_strncpy(buff, _("[NONE SET]"), sizeof(buff)); - if (INET_rresolve(buff, sizeof(buff), (struct sockaddr_in *) sap, - numeric, netmask) != 0) - return (NULL); - return (buff); -} - -static int INET_getsock(char *bufp, struct sockaddr *sap) -{ - char *sp = bufp, *bp; - unsigned int i; - unsigned val; - struct sockaddr_in *sin; - - sin = (struct sockaddr_in *) sap; - sin->sin_family = AF_INET; - sin->sin_port = 0; - - val = 0; - bp = (char *) &val; - for (i = 0; i < sizeof(sin->sin_addr.s_addr); i++) { - *sp = toupper(*sp); - - if ((*sp >= 'A') && (*sp <= 'F')) - bp[i] |= (int) (*sp - 'A') + 10; - else if ((*sp >= '0') && (*sp <= '9')) - bp[i] |= (int) (*sp - '0'); - else - return (-1); - - bp[i] <<= 4; - sp++; - *sp = toupper(*sp); - - if ((*sp >= 'A') && (*sp <= 'F')) - bp[i] |= (int) (*sp - 'A') + 10; - else if ((*sp >= '0') && (*sp <= '9')) - bp[i] |= (int) (*sp - '0'); - else - return (-1); - - sp++; - } - sin->sin_addr.s_addr = htonl(val); - - return (sp - bufp); -} - -static int INET_input(int type, char *bufp, struct sockaddr *sap) -{ - switch (type) { - case 1: - return (INET_getsock(bufp, sap)); - case 256: - return (INET_resolve(bufp, (struct sockaddr_in *) sap, 1)); - default: - return (INET_resolve(bufp, (struct sockaddr_in *) sap, 0)); - } -} - -static int INET_getnetmask(char *adr, struct sockaddr *m, char *name) -{ - struct sockaddr_in *mask = (struct sockaddr_in *) m; - char *slash, *end; - int prefix; - - if ((slash = strchr(adr, '/')) == NULL) - return 0; - - *slash++ = '\0'; - prefix = strtoul(slash, &end, 0); - if (*end != '\0') - return -1; - - if (name) { - sprintf(name, "/%d", prefix); - } - mask->sin_family = AF_INET; - mask->sin_addr.s_addr = htonl(~(0xffffffffU >> prefix)); - return 1; -} -#endif /* KEEP_UNUSED */ - -static struct aftype inet_aftype = { - "inet", "DARPA Internet", AF_INET, sizeof(unsigned long), - NULL /* UNUSED INET_print */ , INET_sprint, - NULL /* UNUSED INET_input */ , NULL /* UNUSED INET_reserror */ , - NULL /*INET_rprint */ , NULL /*INET_rinput */ , - NULL /* UNUSED INET_getnetmask */ , - -1, - NULL -}; - -#endif /* HAVE_AFINET */ - -#if HAVE_AFINET6 - -#ifdef KEEP_UNUSED -static void INET6_reserror(char *text) -{ - herror(text); -} - -/* Display an Internet socket address. */ -static char *INET6_print(unsigned char *ptr) -{ - static char name[80]; - - inet_ntop(AF_INET6, (struct in6_addr *) ptr, name, 80); - return name; -} -#endif /* KEEP_UNUSED */ - -/* Display an Internet socket address. */ -/* dirty! struct sockaddr usually doesn't suffer for inet6 addresses, fst. */ -static char *INET6_sprint(struct sockaddr *sap, int numeric) -{ - static char buff[128]; - - if (sap->sa_family == 0xFFFF || sap->sa_family == 0) - return safe_strncpy(buff, _("[NONE SET]"), sizeof(buff)); - if (INET6_rresolve - (buff, sizeof(buff), (struct sockaddr_in6 *) sap, numeric) != 0) - return safe_strncpy(buff, _("[UNKNOWN]"), sizeof(buff)); - return (buff); -} - -#ifdef KEEP_UNUSED -static int INET6_getsock(char *bufp, struct sockaddr *sap) -{ - struct sockaddr_in6 *sin6; - - sin6 = (struct sockaddr_in6 *) sap; - sin6->sin6_family = AF_INET6; - sin6->sin6_port = 0; - - if (inet_pton(AF_INET6, bufp, sin6->sin6_addr.s6_addr) <= 0) - return (-1); - - return 16; /* ?;) */ -} - -static int INET6_input(int type, char *bufp, struct sockaddr *sap) -{ - switch (type) { - case 1: - return (INET6_getsock(bufp, sap)); - default: - return (INET6_resolve(bufp, (struct sockaddr_in6 *) sap)); - } -} -#endif /* KEEP_UNUSED */ - -static struct aftype inet6_aftype = { - "inet6", "IPv6", AF_INET6, sizeof(struct in6_addr), - NULL /* UNUSED INET6_print */ , INET6_sprint, - NULL /* UNUSED INET6_input */ , NULL /* UNUSED INET6_reserror */ , - NULL /*INET6_rprint */ , NULL /*INET6_rinput */ , - NULL /* UNUSED INET6_getnetmask */ , - -1, - NULL -}; - -#endif /* HAVE_AFINET6 */ - -/* Display an UNSPEC address. */ -static char *UNSPEC_print(unsigned char *ptr) -{ - static char buff[sizeof(struct sockaddr) * 3 + 1]; - char *pos; - unsigned int i; - - pos = buff; - for (i = 0; i < sizeof(struct sockaddr); i++) { - /* careful -- not every libc's sprintf returns # bytes written */ - sprintf(pos, "%02X-", (*ptr++ & 0377)); - pos += 3; - } - /* Erase trailing "-". Works as long as sizeof(struct sockaddr) != 0 */ - *--pos = '\0'; - return (buff); -} - -/* Display an UNSPEC socket address. */ -static char *UNSPEC_sprint(struct sockaddr *sap, int numeric) -{ - static char buf[64]; - - if (sap->sa_family == 0xFFFF || sap->sa_family == 0) - return safe_strncpy(buf, _("[NONE SET]"), sizeof(buf)); - return (UNSPEC_print(sap->sa_data)); -} - -static struct aftype unspec_aftype = { - "unspec", "UNSPEC", AF_UNSPEC, 0, - UNSPEC_print, UNSPEC_sprint, NULL, NULL, - NULL, -}; - -static struct aftype * const aftypes[] = { -#if HAVE_AFUNIX - &unix_aftype, -#endif -#if HAVE_AFINET - &inet_aftype, -#endif -#if HAVE_AFINET6 - &inet6_aftype, -#endif -#if HAVE_AFAX25 - &ax25_aftype, -#endif -#if HAVE_AFNETROM - &netrom_aftype, -#endif -#if HAVE_AFROSE - &rose_aftype, -#endif -#if HAVE_AFIPX - &ipx_aftype, -#endif -#if HAVE_AFATALK - &ddp_aftype, -#endif -#if HAVE_AFECONET - &ec_aftype, -#endif -#if HAVE_AFASH - &ash_aftype, -#endif -#if HAVE_AFX25 - &x25_aftype, -#endif - &unspec_aftype, - NULL -}; - -#ifdef KEEP_UNUSED -static short sVafinit = 0; - -static void afinit() -{ - unspec_aftype.title = _("UNSPEC"); -#if HAVE_AFUNIX - unix_aftype.title = _("UNIX Domain"); -#endif -#if HAVE_AFINET - inet_aftype.title = _("DARPA Internet"); -#endif -#if HAVE_AFINET6 - inet6_aftype.title = _("IPv6"); -#endif -#if HAVE_AFAX25 - ax25_aftype.title = _("AMPR AX.25"); -#endif -#if HAVE_AFNETROM - netrom_aftype.title = _("AMPR NET/ROM"); -#endif -#if HAVE_AFIPX - ipx_aftype.title = _("Novell IPX"); -#endif -#if HAVE_AFATALK - ddp_aftype.title = _("Appletalk DDP"); -#endif -#if HAVE_AFECONET - ec_aftype.title = _("Econet"); -#endif -#if HAVE_AFX25 - x25_aftype.title = _("CCITT X.25"); -#endif -#if HAVE_AFROSE - rose_aftype.title = _("AMPR ROSE"); -#endif -#if HAVE_AFASH - ash_aftype.title = _("Ash"); -#endif - sVafinit = 1; -} - -static int aftrans_opt(const char *arg) -{ - struct aftrans_t *paft; - char *tmp1, *tmp2; - char buf[256]; - - safe_strncpy(buf, arg, sizeof(buf)); - - tmp1 = buf; - - while (tmp1) { - - tmp2 = strchr(tmp1, ','); - - if (tmp2) - *(tmp2++) = '\0'; - - paft = aftrans; - for (paft = aftrans; paft->alias; paft++) { - if (strcmp(tmp1, paft->alias)) - continue; - if (strlen(paft->name) + strlen(afname) + 1 >= sizeof(afname)) { - bb_error_msg(_("Too many address family arguments.")); - return (0); - } - if (paft->flag) - (*paft->flag)++; - if (afname[0]) - strcat(afname, ","); - strcat(afname, paft->name); - break; - } - if (!paft->alias) { - bb_error_msg(_("Unknown address family `%s'."), tmp1); - return (1); - } - tmp1 = tmp2; - } - - return (0); -} - -/* set the default AF list from the program name or a constant value */ -static void aftrans_def(char *tool, char *argv0, char *dflt) -{ - char *tmp; - char *buf; - - strcpy(afname, dflt); - - if (!(tmp = strrchr(argv0, '/'))) - tmp = argv0; /* no slash?! */ - else - tmp++; - - if (!(buf = strdup(tmp))) - return; - - if (strlen(tool) >= strlen(tmp)) { - free(buf); - return; - } - tmp = buf + (strlen(tmp) - strlen(tool)); - - if (strcmp(tmp, tool) != 0) { - free(buf); - return; - } - *tmp = '\0'; - if ((tmp = strchr(buf, '_'))) - *tmp = '\0'; - - afname[0] = '\0'; - if (aftrans_opt(buf)) - strcpy(afname, buf); - - free(buf); -} - -/* Check our protocol family table for this family. */ -static struct aftype *get_aftype(const char *name) -{ - struct aftype * const *afp; - -#ifdef KEEP_UNUSED - if (!sVafinit) - afinit(); -#endif /* KEEP_UNUSED */ - - afp = aftypes; - while (*afp != NULL) { - if (!strcmp((*afp)->name, name)) - return (*afp); - afp++; - } - if (strchr(name, ',')) - bb_error_msg(_("Please don't supply more than one address family.")); - return (NULL); -} -#endif /* KEEP_UNUSED */ - -/* Check our protocol family table for this family. */ -static struct aftype *get_afntype(int af) -{ - struct aftype * const *afp; - -#ifdef KEEP_UNUSED - if (!sVafinit) - afinit(); -#endif /* KEEP_UNUSED */ - - afp = aftypes; - while (*afp != NULL) { - if ((*afp)->af == af) - return (*afp); - afp++; - } - return (NULL); -} - -/* Check our protocol family table for this family and return its socket */ -static int get_socket_for_af(int af) -{ - struct aftype * const *afp; - -#ifdef KEEP_UNUSED - if (!sVafinit) - afinit(); -#endif /* KEEP_UNUSED */ - - afp = aftypes; - while (*afp != NULL) { - if ((*afp)->af == af) - return (*afp)->fd; - afp++; - } - return -1; -} - -#ifdef KEEP_UNUSED -/* type: 0=all, 1=getroute */ -static void print_aflist(int type) -{ - int count = 0; - char *txt; - struct aftype * const *afp; - -#ifdef KEEP_UNUSED - if (!sVafinit) - afinit(); -#endif /* KEEP_UNUSED */ - - afp = aftypes; - while (*afp != NULL) { - if ((type == 1 && ((*afp)->rprint == NULL)) || ((*afp)->af == 0)) { - afp++; - continue; - } - if ((count % 3) == 0) - fprintf(stderr, count ? "\n " : " "); - txt = (*afp)->name; - if (!txt) - txt = ".."; - fprintf(stderr, "%s (%s) ", txt, _((*afp)->title)); - count++; - afp++; - } - fprintf(stderr, "\n"); -} -#endif /* KEEP_UNUSED */ - -struct user_net_device_stats { - unsigned long long rx_packets; /* total packets received */ - unsigned long long tx_packets; /* total packets transmitted */ - unsigned long long rx_bytes; /* total bytes received */ - unsigned long long tx_bytes; /* total bytes transmitted */ - unsigned long rx_errors; /* bad packets received */ - unsigned long tx_errors; /* packet transmit problems */ - unsigned long rx_dropped; /* no space in linux buffers */ - unsigned long tx_dropped; /* no space available in linux */ - unsigned long rx_multicast; /* multicast packets received */ - unsigned long rx_compressed; - unsigned long tx_compressed; - unsigned long collisions; - - /* detailed rx_errors: */ - unsigned long rx_length_errors; - unsigned long rx_over_errors; /* receiver ring buff overflow */ - unsigned long rx_crc_errors; /* recved pkt with crc error */ - unsigned long rx_frame_errors; /* recv'd frame alignment error */ - unsigned long rx_fifo_errors; /* recv'r fifo overrun */ - unsigned long rx_missed_errors; /* receiver missed packet */ - /* detailed tx_errors */ - unsigned long tx_aborted_errors; - unsigned long tx_carrier_errors; - unsigned long tx_fifo_errors; - unsigned long tx_heartbeat_errors; - unsigned long tx_window_errors; -}; - -struct interface { - struct interface *next, *prev; - char name[IFNAMSIZ]; /* interface name */ - short type; /* if type */ - short flags; /* various flags */ - int metric; /* routing metric */ - int mtu; /* MTU value */ - int tx_queue_len; /* transmit queue length */ - struct ifmap map; /* hardware setup */ - struct sockaddr addr; /* IP address */ - struct sockaddr dstaddr; /* P-P IP address */ - struct sockaddr broadaddr; /* IP broadcast address */ - struct sockaddr netmask; /* IP network mask */ - struct sockaddr ipxaddr_bb; /* IPX network address */ - struct sockaddr ipxaddr_sn; /* IPX network address */ - struct sockaddr ipxaddr_e3; /* IPX network address */ - struct sockaddr ipxaddr_e2; /* IPX network address */ - struct sockaddr ddpaddr; /* Appletalk DDP address */ - struct sockaddr ecaddr; /* Econet address */ - int has_ip; - int has_ipx_bb; - int has_ipx_sn; - int has_ipx_e3; - int has_ipx_e2; - int has_ax25; - int has_ddp; - int has_econet; - char hwaddr[32]; /* HW address */ - int statistics_valid; - struct user_net_device_stats stats; /* statistics */ - int keepalive; /* keepalive value for SLIP */ - int outfill; /* outfill value for SLIP */ -}; - - -int interface_opt_a = 0; /* show all interfaces */ - -#ifdef KEEP_UNUSED -static int opt_i = 0; /* show the statistics */ -static int opt_v = 0; /* debugging output flag */ - -static int addr_family = 0; /* currently selected AF */ -#endif /* KEEP_UNUSED */ - -static struct interface *int_list, *int_last; -static int skfd = -1; /* generic raw socket desc. */ - - -static int sockets_open(int family) -{ - struct aftype * const *aft; - int sfd = -1; - static int force = -1; - - if (force < 0) { - force = 0; - if (get_kernel_revision() < KRELEASE(2, 1, 0)) - force = 1; - if (access("/proc/net", R_OK)) - force = 1; - } - for (aft = aftypes; *aft; aft++) { - struct aftype *af = *aft; - int type = SOCK_DGRAM; - - if (af->af == AF_UNSPEC) - continue; - if (family && family != af->af) - continue; - if (af->fd != -1) { - sfd = af->fd; - continue; - } - /* Check some /proc file first to not stress kmod */ - if (!family && !force && af->flag_file) { - if (access(af->flag_file, R_OK)) - continue; - } -#if HAVE_AFNETROM - if (af->af == AF_NETROM) - type = SOCK_SEQPACKET; -#endif -#if HAVE_AFX25 - if (af->af == AF_X25) - type = SOCK_SEQPACKET; -#endif - af->fd = socket(af->af, type, 0); - if (af->fd >= 0) - sfd = af->fd; - } - if (sfd < 0) { - bb_error_msg(_("No usable address families found.")); - } - return sfd; -} - -#ifdef CONFIG_FEATURE_CLEAN_UP -static void sockets_close(void) -{ - struct aftype * const *aft; - for (aft = aftypes; *aft != NULL; aft++) { - struct aftype *af = *aft; - if( af->fd != -1 ) { - close(af->fd); - af->fd = -1; - } - } -} -#endif - -/* like strcmp(), but knows about numbers */ -static int nstrcmp(const char *a, const char *b) -{ - const char *a_ptr = a; - const char *b_ptr = b; - - while (*a == *b) { - if (*a == '\0') { - return 0; - } - if (!isdigit(*a) && isdigit(*(a+1))) { - a_ptr = a+1; - b_ptr = b+1; - } - a++; - b++; - } - - if (isdigit(*a) && isdigit(*b)) { - return atoi(a_ptr) > atoi(b_ptr) ? 1 : -1; - } - return *a - *b; -} - -static struct interface *add_interface(char *name) -{ - struct interface *ife, **nextp, *new; - - for (ife = int_last; ife; ife = ife->prev) { - int n = nstrcmp(ife->name, name); - - if (n == 0) - return ife; - if (n < 0) - break; - } - new(new); - safe_strncpy(new->name, name, IFNAMSIZ); - nextp = ife ? &ife->next : &int_list; - new->prev = ife; - new->next = *nextp; - if (new->next) - new->next->prev = new; - else - int_last = new; - *nextp = new; - return new; -} - - -static int if_readconf(void) -{ - int numreqs = 30; - struct ifconf ifc; - struct ifreq *ifr; - int n, err = -1; - int skfd2; - - /* SIOCGIFCONF currently seems to only work properly on AF_INET sockets - (as of 2.1.128) */ - skfd2 = get_socket_for_af(AF_INET); - if (skfd2 < 0) { - bb_perror_msg(("warning: no inet socket available")); - /* Try to soldier on with whatever socket we can get hold of. */ - skfd2 = sockets_open(0); - if (skfd2 < 0) - return -1; - } - - ifc.ifc_buf = NULL; - for (;;) { - ifc.ifc_len = sizeof(struct ifreq) * numreqs; - ifc.ifc_buf = xrealloc(ifc.ifc_buf, ifc.ifc_len); - - if (ioctl(skfd2, SIOCGIFCONF, &ifc) < 0) { - perror("SIOCGIFCONF"); - goto out; - } - if (ifc.ifc_len == sizeof(struct ifreq) * numreqs) { - /* assume it overflowed and try again */ - numreqs += 10; - continue; - } - break; - } - - ifr = ifc.ifc_req; - for (n = 0; n < ifc.ifc_len; n += sizeof(struct ifreq)) { - add_interface(ifr->ifr_name); - ifr++; - } - err = 0; - - out: - free(ifc.ifc_buf); - return err; -} - -static char *get_name(char *name, char *p) -{ - /* Extract [:] from nul-terminated p where p matches - [:]: after leading whitespace. - If match is not made, set name empty and return unchanged p */ - int namestart=0, nameend=0, aliasend; - while (isspace(p[namestart])) - namestart++; - nameend=namestart; - while (p[nameend] && p[nameend]!=':' && !isspace(p[nameend])) - nameend++; - if (p[nameend]==':') { - aliasend=nameend+1; - while (p[aliasend] && isdigit(p[aliasend])) - aliasend++; - if (p[aliasend]==':') { - nameend=aliasend; - } - if ((nameend-namestart)stats, 0, sizeof(struct user_net_device_stats)); - - sscanf(bp, ss_fmt[procnetdev_vsn], - &ife->stats.rx_bytes, /* missing for 0 */ - &ife->stats.rx_packets, - &ife->stats.rx_errors, - &ife->stats.rx_dropped, - &ife->stats.rx_fifo_errors, - &ife->stats.rx_frame_errors, - &ife->stats.rx_compressed, /* missing for <= 1 */ - &ife->stats.rx_multicast, /* missing for <= 1 */ - &ife->stats.tx_bytes, /* missing for 0 */ - &ife->stats.tx_packets, - &ife->stats.tx_errors, - &ife->stats.tx_dropped, - &ife->stats.tx_fifo_errors, - &ife->stats.collisions, - &ife->stats.tx_carrier_errors, - &ife->stats.tx_compressed /* missing for <= 1 */ - ); - - if (procnetdev_vsn <= 1) { - if (procnetdev_vsn == 0) { - ife->stats.rx_bytes = 0; - ife->stats.tx_bytes = 0; - } - ife->stats.rx_multicast = 0; - ife->stats.rx_compressed = 0; - ife->stats.tx_compressed = 0; - } -} - -static inline int procnetdev_version(char *buf) -{ - if (strstr(buf, "compressed")) - return 2; - if (strstr(buf, "bytes")) - return 1; - return 0; -} - -static int if_readlist_proc(char *target) -{ - static int proc_read; - FILE *fh; - char buf[512]; - struct interface *ife; - int err, procnetdev_vsn; - - if (proc_read) - return 0; - if (!target) - proc_read = 1; - - fh = fopen(_PATH_PROCNET_DEV, "r"); - if (!fh) { - bb_perror_msg(_("Warning: cannot open %s. Limited output."), _PATH_PROCNET_DEV); - return if_readconf(); - } - fgets(buf, sizeof buf, fh); /* eat line */ - fgets(buf, sizeof buf, fh); - - procnetdev_vsn = procnetdev_version(buf); - - err = 0; - while (fgets(buf, sizeof buf, fh)) { - char *s, name[128]; - - s = get_name(name, buf); - ife = add_interface(name); - get_dev_fields(s, ife, procnetdev_vsn); - ife->statistics_valid = 1; - if (target && !strcmp(target, name)) - break; - } - if (ferror(fh)) { - perror(_PATH_PROCNET_DEV); - err = -1; - proc_read = 0; - } - fclose(fh); - return err; -} - -static int if_readlist(void) -{ - int err = if_readlist_proc(NULL); - - if (!err) - err = if_readconf(); - return err; -} - -static int for_all_interfaces(int (*doit) (struct interface *, void *), - void *cookie) -{ - struct interface *ife; - - if (!int_list && (if_readlist() < 0)) - return -1; - for (ife = int_list; ife; ife = ife->next) { - int err = doit(ife, cookie); - - if (err) - return err; - } - return 0; -} - -/* Support for fetching an IPX address */ - -#if HAVE_AFIPX -static int ipx_getaddr(int sock, int ft, struct ifreq *ifr) -{ - ((struct sockaddr_ipx *) &ifr->ifr_addr)->sipx_type = ft; - return ioctl(sock, SIOCGIFADDR, ifr); -} -#endif - - -/* Fetch the interface configuration from the kernel. */ -static int if_fetch(struct interface *ife) -{ - struct ifreq ifr; - int fd; - char *ifname = ife->name; - - strcpy(ifr.ifr_name, ifname); - if (ioctl(skfd, SIOCGIFFLAGS, &ifr) < 0) - return (-1); - ife->flags = ifr.ifr_flags; - - strcpy(ifr.ifr_name, ifname); - if (ioctl(skfd, SIOCGIFHWADDR, &ifr) < 0) - memset(ife->hwaddr, 0, 32); - else - memcpy(ife->hwaddr, ifr.ifr_hwaddr.sa_data, 8); - - ife->type = ifr.ifr_hwaddr.sa_family; - - strcpy(ifr.ifr_name, ifname); - if (ioctl(skfd, SIOCGIFMETRIC, &ifr) < 0) - ife->metric = 0; - else - ife->metric = ifr.ifr_metric; - - strcpy(ifr.ifr_name, ifname); - if (ioctl(skfd, SIOCGIFMTU, &ifr) < 0) - ife->mtu = 0; - else - ife->mtu = ifr.ifr_mtu; - -#ifdef HAVE_HWSLIP - if (ife->type == ARPHRD_SLIP || ife->type == ARPHRD_CSLIP || - ife->type == ARPHRD_SLIP6 || ife->type == ARPHRD_CSLIP6 || - ife->type == ARPHRD_ADAPT) { -#ifdef SIOCGOUTFILL - strcpy(ifr.ifr_name, ifname); - if (ioctl(skfd, SIOCGOUTFILL, &ifr) < 0) - ife->outfill = 0; - else - ife->outfill = (unsigned int) ifr.ifr_data; -#endif -#ifdef SIOCGKEEPALIVE - strcpy(ifr.ifr_name, ifname); - if (ioctl(skfd, SIOCGKEEPALIVE, &ifr) < 0) - ife->keepalive = 0; - else - ife->keepalive = (unsigned int) ifr.ifr_data; -#endif - } -#endif - -#ifdef SIOCGIFMAP - strcpy(ifr.ifr_name, ifname); - if (ioctl(skfd, SIOCGIFMAP, &ifr) == 0) - ife->map = ifr.ifr_map; - else -#endif - memset(&ife->map, 0, sizeof(struct ifmap)); - -#ifdef HAVE_TXQUEUELEN - strcpy(ifr.ifr_name, ifname); - if (ioctl(skfd, SIOCGIFTXQLEN, &ifr) < 0) - ife->tx_queue_len = -1; /* unknown value */ - else - ife->tx_queue_len = ifr.ifr_qlen; -#else - ife->tx_queue_len = -1; /* unknown value */ -#endif - -#if HAVE_AFINET - /* IPv4 address? */ - fd = get_socket_for_af(AF_INET); - if (fd >= 0) { - strcpy(ifr.ifr_name, ifname); - ifr.ifr_addr.sa_family = AF_INET; - if (ioctl(fd, SIOCGIFADDR, &ifr) == 0) { - ife->has_ip = 1; - ife->addr = ifr.ifr_addr; - strcpy(ifr.ifr_name, ifname); - if (ioctl(fd, SIOCGIFDSTADDR, &ifr) < 0) - memset(&ife->dstaddr, 0, sizeof(struct sockaddr)); - else - ife->dstaddr = ifr.ifr_dstaddr; - - strcpy(ifr.ifr_name, ifname); - if (ioctl(fd, SIOCGIFBRDADDR, &ifr) < 0) - memset(&ife->broadaddr, 0, sizeof(struct sockaddr)); - else - ife->broadaddr = ifr.ifr_broadaddr; - - strcpy(ifr.ifr_name, ifname); - if (ioctl(fd, SIOCGIFNETMASK, &ifr) < 0) - memset(&ife->netmask, 0, sizeof(struct sockaddr)); - else - ife->netmask = ifr.ifr_netmask; - } else - memset(&ife->addr, 0, sizeof(struct sockaddr)); - } -#endif - -#if HAVE_AFATALK - /* DDP address maybe ? */ - fd = get_socket_for_af(AF_APPLETALK); - if (fd >= 0) { - strcpy(ifr.ifr_name, ifname); - if (ioctl(fd, SIOCGIFADDR, &ifr) == 0) { - ife->ddpaddr = ifr.ifr_addr; - ife->has_ddp = 1; - } - } -#endif - -#if HAVE_AFIPX - /* Look for IPX addresses with all framing types */ - fd = get_socket_for_af(AF_IPX); - if (fd >= 0) { - strcpy(ifr.ifr_name, ifname); - if (!ipx_getaddr(fd, IPX_FRAME_ETHERII, &ifr)) { - ife->has_ipx_bb = 1; - ife->ipxaddr_bb = ifr.ifr_addr; - } - strcpy(ifr.ifr_name, ifname); - if (!ipx_getaddr(fd, IPX_FRAME_SNAP, &ifr)) { - ife->has_ipx_sn = 1; - ife->ipxaddr_sn = ifr.ifr_addr; - } - strcpy(ifr.ifr_name, ifname); - if (!ipx_getaddr(fd, IPX_FRAME_8023, &ifr)) { - ife->has_ipx_e3 = 1; - ife->ipxaddr_e3 = ifr.ifr_addr; - } - strcpy(ifr.ifr_name, ifname); - if (!ipx_getaddr(fd, IPX_FRAME_8022, &ifr)) { - ife->has_ipx_e2 = 1; - ife->ipxaddr_e2 = ifr.ifr_addr; - } - } -#endif - -#if HAVE_AFECONET - /* Econet address maybe? */ - fd = get_socket_for_af(AF_ECONET); - if (fd >= 0) { - strcpy(ifr.ifr_name, ifname); - if (ioctl(fd, SIOCGIFADDR, &ifr) == 0) { - ife->ecaddr = ifr.ifr_addr; - ife->has_econet = 1; - } - } -#endif - - return 0; -} - - -static int do_if_fetch(struct interface *ife) -{ - if (if_fetch(ife) < 0) { - char *errmsg; - - if (errno == ENODEV) { - /* Give better error message for this case. */ - errmsg = _("Device not found"); - } else { - errmsg = strerror(errno); - } - bb_error_msg(_("%s: error fetching interface information: %s"), - ife->name, errmsg); - return -1; - } - return 0; -} - -/* This structure defines hardware protocols and their handlers. */ -struct hwtype { - const char *name; - const char *title; - int type; - int alen; - char *(*print) (unsigned char *); - int (*input) (char *, struct sockaddr *); - int (*activate) (int fd); - int suppress_null_addr; -}; - -static const struct hwtype unspec_hwtype = { - "unspec", "UNSPEC", -1, 0, - UNSPEC_print, NULL, NULL -}; - -static const struct hwtype loop_hwtype = { - "loop", "Local Loopback", ARPHRD_LOOPBACK, 0, - NULL, NULL, NULL -}; - -#if HAVE_HWETHER -#include - -#if (__GLIBC__ >=2 && __GLIBC_MINOR >= 1) || defined(_NEWLIB_VERSION) -#include -#else -#include -#endif - -/* Display an Ethernet address in readable format. */ -static char *pr_ether(unsigned char *ptr) -{ - static char buff[64]; - - snprintf(buff, sizeof(buff), "%02X:%02X:%02X:%02X:%02X:%02X", - (ptr[0] & 0377), (ptr[1] & 0377), (ptr[2] & 0377), - (ptr[3] & 0377), (ptr[4] & 0377), (ptr[5] & 0377) - ); - return (buff); -} - -#ifdef KEEP_UNUSED -/* Input an Ethernet address and convert to binary. */ -static int in_ether(char *bufp, struct sockaddr *sap) -{ - unsigned char *ptr; - char c, *orig; - int i; - unsigned val; - - sap->sa_family = ether_hwtype.type; - ptr = sap->sa_data; - - i = 0; - orig = bufp; - while ((*bufp != '\0') && (i < ETH_ALEN)) { - val = 0; - c = *bufp++; - if (isdigit(c)) - val = c - '0'; - else if (c >= 'a' && c <= 'f') - val = c - 'a' + 10; - else if (c >= 'A' && c <= 'F') - val = c - 'A' + 10; - else { -#ifdef DEBUG - bb_error_msg(_("in_ether(%s): invalid ether address!\n"), orig); -#endif - errno = EINVAL; - return (-1); - } - val <<= 4; - c = *bufp; - if (isdigit(c)) - val |= c - '0'; - else if (c >= 'a' && c <= 'f') - val |= c - 'a' + 10; - else if (c >= 'A' && c <= 'F') - val |= c - 'A' + 10; - else if (c == ':' || c == 0) - val >>= 4; - else { -#ifdef DEBUG - bb_error_msg(_("in_ether(%s): invalid ether address!"), orig); -#endif - errno = EINVAL; - return (-1); - } - if (c != 0) - bufp++; - *ptr++ = (unsigned char) (val & 0377); - i++; - - /* We might get a semicolon here - not required. */ - if (*bufp == ':') { -#ifdef DEBUG - if (i == ETH_ALEN) { - bb_error_msg(_("in_ether(%s): trailing : ignored!"), orig); - } -#endif - bufp++; - } - } - -#ifdef DEBUG - /* That's it. Any trailing junk? */ - if ((i == ETH_ALEN) && (*bufp != '\0')) { - bb_error_msg(_("in_ether(%s): trailing junk!"), orig); - errno = EINVAL; - return (-1); - } - bb_error_msg("in_ether(%s): %s", orig, pr_ether(sap->sa_data)); -#endif - - return (0); -} -#endif /* KEEP_UNUSED */ - - -static const struct hwtype ether_hwtype = { - "ether", "Ethernet", ARPHRD_ETHER, ETH_ALEN, - pr_ether, NULL /* UNUSED in_ether */ , NULL -}; - - -#endif /* HAVE_HWETHER */ - - -#if HAVE_HWPPP - -#include - -#ifdef KEEP_UNUSED -/* Start the PPP encapsulation on the file descriptor. */ -static int do_ppp(int fd) -{ - bb_error_msg(_("You cannot start PPP with this program.")); - return -1; -} -#endif /* KEEP_UNUSED */ - -static const struct hwtype ppp_hwtype = { - "ppp", "Point-Point Protocol", ARPHRD_PPP, 0, - NULL, NULL, NULL /* UNUSED do_ppp */ , 0 -}; - - -#endif /* HAVE_PPP */ - -static const struct hwtype * const hwtypes[] = { - - &loop_hwtype, - -#if HAVE_HWSLIP - &slip_hwtype, - &cslip_hwtype, - &slip6_hwtype, - &cslip6_hwtype, - &adaptive_hwtype, -#endif -#if HAVE_HWSTRIP - &strip_hwtype, -#endif -#if HAVE_HWASH - &ash_hwtype, -#endif -#if HAVE_HWETHER - ðer_hwtype, -#endif -#if HAVE_HWTR - &tr_hwtype, -#ifdef ARPHRD_IEEE802_TR - &tr_hwtype1, -#endif -#endif -#if HAVE_HWAX25 - &ax25_hwtype, -#endif -#if HAVE_HWNETROM - &netrom_hwtype, -#endif -#if HAVE_HWROSE - &rose_hwtype, -#endif -#if HAVE_HWTUNNEL - &tunnel_hwtype, -#endif -#if HAVE_HWPPP - &ppp_hwtype, -#endif -#if HAVE_HWHDLCLAPB - &hdlc_hwtype, - &lapb_hwtype, -#endif -#if HAVE_HWARC - &arcnet_hwtype, -#endif -#if HAVE_HWFR - &dlci_hwtype, - &frad_hwtype, -#endif -#if HAVE_HWSIT - &sit_hwtype, -#endif -#if HAVE_HWFDDI - &fddi_hwtype, -#endif -#if HAVE_HWHIPPI - &hippi_hwtype, -#endif -#if HAVE_HWIRDA - &irda_hwtype, -#endif -#if HAVE_HWEC - &ec_hwtype, -#endif -#if HAVE_HWX25 - &x25_hwtype, -#endif - &unspec_hwtype, - NULL -}; - -#ifdef KEEP_UNUSED -static short sVhwinit = 0; - -static void hwinit() -{ - loop_hwtype.title = _("Local Loopback"); - unspec_hwtype.title = _("UNSPEC"); -#if HAVE_HWSLIP - slip_hwtype.title = _("Serial Line IP"); - cslip_hwtype.title = _("VJ Serial Line IP"); - slip6_hwtype.title = _("6-bit Serial Line IP"); - cslip6_hwtype.title = _("VJ 6-bit Serial Line IP"); - adaptive_hwtype.title = _("Adaptive Serial Line IP"); -#endif -#if HAVE_HWETHER - ether_hwtype.title = _("Ethernet"); -#endif -#if HAVE_HWASH - ash_hwtype.title = _("Ash"); -#endif -#if HAVE_HWFDDI - fddi_hwtype.title = _("Fiber Distributed Data Interface"); -#endif -#if HAVE_HWHIPPI - hippi_hwtype.title = _("HIPPI"); -#endif -#if HAVE_HWAX25 - ax25_hwtype.title = _("AMPR AX.25"); -#endif -#if HAVE_HWROSE - rose_hwtype.title = _("AMPR ROSE"); -#endif -#if HAVE_HWNETROM - netrom_hwtype.title = _("AMPR NET/ROM"); -#endif -#if HAVE_HWX25 - x25_hwtype.title = _("generic X.25"); -#endif -#if HAVE_HWTUNNEL - tunnel_hwtype.title = _("IPIP Tunnel"); -#endif -#if HAVE_HWPPP - ppp_hwtype.title = _("Point-to-Point Protocol"); -#endif -#if HAVE_HWHDLCLAPB - hdlc_hwtype.title = _("(Cisco)-HDLC"); - lapb_hwtype.title = _("LAPB"); -#endif -#if HAVE_HWARC - arcnet_hwtype.title = _("ARCnet"); -#endif -#if HAVE_HWFR - dlci_hwtype.title = _("Frame Relay DLCI"); - frad_hwtype.title = _("Frame Relay Access Device"); -#endif -#if HAVE_HWSIT - sit_hwtype.title = _("IPv6-in-IPv4"); -#endif -#if HAVE_HWIRDA - irda_hwtype.title = _("IrLAP"); -#endif -#if HAVE_HWTR - tr_hwtype.title = _("16/4 Mbps Token Ring"); -#ifdef ARPHRD_IEEE802_TR - tr_hwtype1.title = _("16/4 Mbps Token Ring (New)"); -#endif -#endif -#if HAVE_HWEC - ec_hwtype.title = _("Econet"); -#endif - sVhwinit = 1; -} -#endif /* KEEP_UNUSED */ - -#ifdef IFF_PORTSEL -#if 0 -static const char * const if_port_text[][4] = { - /* Keep in step with */ - {"unknown", NULL, NULL, NULL}, - {"10base2", "bnc", "coax", NULL}, - {"10baseT", "utp", "tpe", NULL}, - {"AUI", "thick", "db15", NULL}, - {"100baseT", NULL, NULL, NULL}, - {"100baseTX", NULL, NULL, NULL}, - {"100baseFX", NULL, NULL, NULL}, - {NULL, NULL, NULL, NULL}, -}; -#else -static const char * const if_port_text[] = { - /* Keep in step with */ - "unknown", - "10base2", - "10baseT", - "AUI", - "100baseT", - "100baseTX", - "100baseFX", - NULL -}; -#endif -#endif - -/* Check our hardware type table for this type. */ -static const struct hwtype *get_hwntype(int type) -{ - const struct hwtype * const *hwp; - -#ifdef KEEP_UNUSED - if (!sVhwinit) - hwinit(); -#endif /* KEEP_UNUSED */ - - hwp = hwtypes; - while (*hwp != NULL) { - if ((*hwp)->type == type) - return (*hwp); - hwp++; - } - return (NULL); -} - -/* return 1 if address is all zeros */ -static int hw_null_address(const struct hwtype *hw, void *ap) -{ - unsigned int i; - unsigned char *address = (unsigned char *) ap; - - for (i = 0; i < hw->alen; i++) - if (address[i]) - return 0; - return 1; -} - -static const char TRext[] = "\0\0\0Ki\0Mi\0Gi\0Ti"; - -static void print_bytes_scaled(unsigned long long ull, const char *end) -{ - unsigned long long int_part; - const char *ext; - unsigned int frac_part; - int i; - - frac_part = 0; - ext = TRext; - int_part = ull; - i = 4; - do { -#if 0 - /* This does correct rounding and is a little larger. But it - * uses KiB as the smallest displayed unit. */ - if ((int_part < (1024*1024 - 51)) || !--i) { - i = 0; - int_part += 51; /* 1024*.05 = 51.2 */ - frac_part = ((((unsigned int) int_part) & (1024-1)) * 10) / 1024; - } - int_part /= 1024; - ext += 3; /* KiB, MiB, GiB, TiB */ -#else - if (int_part >= 1024) { - frac_part = ((((unsigned int) int_part) & (1024-1)) * 10) / 1024; - int_part /= 1024; - ext += 3; /* KiB, MiB, GiB, TiB */ - } - --i; -#endif - } while (i); - - printf("X bytes:%Lu (%Lu.%u %sB)%s", ull, int_part, frac_part, ext, end); -} - -static const char * const ife_print_flags_strs[] = { - "UP ", - "BROADCAST ", - "DEBUG ", - "LOOPBACK ", - "POINTOPOINT ", - "NOTRAILERS ", - "RUNNING ", - "NOARP ", - "PROMISC ", - "ALLMULTI ", - "SLAVE ", - "MASTER ", - "MULTICAST ", -#ifdef HAVE_DYNAMIC - "DYNAMIC " -#endif -}; - -static const unsigned short ife_print_flags_mask[] = { - IFF_UP, - IFF_BROADCAST, - IFF_DEBUG, - IFF_LOOPBACK, - IFF_POINTOPOINT, - IFF_NOTRAILERS, - IFF_RUNNING, - IFF_NOARP, - IFF_PROMISC, - IFF_ALLMULTI, - IFF_SLAVE, - IFF_MASTER, - IFF_MULTICAST, -#ifdef HAVE_DYNAMIC - IFF_DYNAMIC -#endif - 0 -}; - -static void ife_print(struct interface *ptr) -{ - struct aftype *ap; - const struct hwtype *hw; - int hf; - int can_compress = 0; - -#if HAVE_AFIPX - static struct aftype *ipxtype = NULL; -#endif -#if HAVE_AFECONET - static struct aftype *ectype = NULL; -#endif -#if HAVE_AFATALK - static struct aftype *ddptype = NULL; -#endif -#if HAVE_AFINET6 - FILE *f; - char addr6[40], devname[20]; - struct sockaddr_in6 sap; - int plen, scope, dad_status, if_idx; - char addr6p[8][5]; -#endif - - ap = get_afntype(ptr->addr.sa_family); - if (ap == NULL) - ap = get_afntype(0); - - hf = ptr->type; - - if (hf == ARPHRD_CSLIP || hf == ARPHRD_CSLIP6) - can_compress = 1; - - hw = get_hwntype(hf); - if (hw == NULL) - hw = get_hwntype(-1); - - printf(_("%-9.9s Link encap:%s "), ptr->name, _(hw->title)); - /* For some hardware types (eg Ash, ATM) we don't print the - hardware address if it's null. */ - if (hw->print != NULL && (!(hw_null_address(hw, ptr->hwaddr) && - hw->suppress_null_addr))) - printf(_("HWaddr %s "), hw->print(ptr->hwaddr)); -#ifdef IFF_PORTSEL - if (ptr->flags & IFF_PORTSEL) { - printf(_("Media:%s"), if_port_text[ptr->map.port] /* [0] */); - if (ptr->flags & IFF_AUTOMEDIA) - printf(_("(auto)")); - } -#endif - printf("\n"); - -#if HAVE_AFINET - if (ptr->has_ip) { - printf(_(" %s addr:%s "), ap->name, - ap->sprint(&ptr->addr, 1)); - if (ptr->flags & IFF_POINTOPOINT) { - printf(_(" P-t-P:%s "), ap->sprint(&ptr->dstaddr, 1)); - } - if (ptr->flags & IFF_BROADCAST) { - printf(_(" Bcast:%s "), ap->sprint(&ptr->broadaddr, 1)); - } - printf(_(" Mask:%s\n"), ap->sprint(&ptr->netmask, 1)); - } -#endif - -#if HAVE_AFINET6 - -#define IPV6_ADDR_ANY 0x0000U - -#define IPV6_ADDR_UNICAST 0x0001U -#define IPV6_ADDR_MULTICAST 0x0002U -#define IPV6_ADDR_ANYCAST 0x0004U - -#define IPV6_ADDR_LOOPBACK 0x0010U -#define IPV6_ADDR_LINKLOCAL 0x0020U -#define IPV6_ADDR_SITELOCAL 0x0040U - -#define IPV6_ADDR_COMPATv4 0x0080U - -#define IPV6_ADDR_SCOPE_MASK 0x00f0U - -#define IPV6_ADDR_MAPPED 0x1000U -#define IPV6_ADDR_RESERVED 0x2000U /* reserved address space */ - - if ((f = fopen(_PATH_PROCNET_IFINET6, "r")) != NULL) { - while (fscanf - (f, "%4s%4s%4s%4s%4s%4s%4s%4s %02x %02x %02x %02x %20s\n", - addr6p[0], addr6p[1], addr6p[2], addr6p[3], addr6p[4], - addr6p[5], addr6p[6], addr6p[7], &if_idx, &plen, &scope, - &dad_status, devname) != EOF) { - if (!strcmp(devname, ptr->name)) { - sprintf(addr6, "%s:%s:%s:%s:%s:%s:%s:%s", - addr6p[0], addr6p[1], addr6p[2], addr6p[3], - addr6p[4], addr6p[5], addr6p[6], addr6p[7]); - inet_pton(AF_INET6, addr6, - (struct sockaddr *) &sap.sin6_addr); - sap.sin6_family = AF_INET6; - printf(_(" inet6 addr: %s/%d"), - inet6_aftype.sprint((struct sockaddr *) &sap, 1), - plen); - printf(_(" Scope:")); - switch (scope & IPV6_ADDR_SCOPE_MASK) { - case 0: - printf(_("Global")); - break; - case IPV6_ADDR_LINKLOCAL: - printf(_("Link")); - break; - case IPV6_ADDR_SITELOCAL: - printf(_("Site")); - break; - case IPV6_ADDR_COMPATv4: - printf(_("Compat")); - break; - case IPV6_ADDR_LOOPBACK: - printf(_("Host")); - break; - default: - printf(_("Unknown")); - } - printf("\n"); - } - } - fclose(f); - } -#endif - -#if HAVE_AFIPX - if (ipxtype == NULL) - ipxtype = get_afntype(AF_IPX); - - if (ipxtype != NULL) { - if (ptr->has_ipx_bb) - printf(_(" IPX/Ethernet II addr:%s\n"), - ipxtype->sprint(&ptr->ipxaddr_bb, 1)); - if (ptr->has_ipx_sn) - printf(_(" IPX/Ethernet SNAP addr:%s\n"), - ipxtype->sprint(&ptr->ipxaddr_sn, 1)); - if (ptr->has_ipx_e2) - printf(_(" IPX/Ethernet 802.2 addr:%s\n"), - ipxtype->sprint(&ptr->ipxaddr_e2, 1)); - if (ptr->has_ipx_e3) - printf(_(" IPX/Ethernet 802.3 addr:%s\n"), - ipxtype->sprint(&ptr->ipxaddr_e3, 1)); - } -#endif - -#if HAVE_AFATALK - if (ddptype == NULL) - ddptype = get_afntype(AF_APPLETALK); - if (ddptype != NULL) { - if (ptr->has_ddp) - printf(_(" EtherTalk Phase 2 addr:%s\n"), - ddptype->sprint(&ptr->ddpaddr, 1)); - } -#endif - -#if HAVE_AFECONET - if (ectype == NULL) - ectype = get_afntype(AF_ECONET); - if (ectype != NULL) { - if (ptr->has_econet) - printf(_(" econet addr:%s\n"), - ectype->sprint(&ptr->ecaddr, 1)); - } -#endif - - printf(" "); - /* DONT FORGET TO ADD THE FLAGS IN ife_print_short, too */ - - if (ptr->flags == 0) { - printf(_("[NO FLAGS] ")); - } else { - int i = 0; - do { - if (ptr->flags & ife_print_flags_mask[i]) { - printf(_(ife_print_flags_strs[i])); - } - } while (ife_print_flags_mask[++i]); - } - - /* DONT FORGET TO ADD THE FLAGS IN ife_print_short */ - printf(_(" MTU:%d Metric:%d"), ptr->mtu, ptr->metric ? ptr->metric : 1); -#ifdef SIOCSKEEPALIVE - if (ptr->outfill || ptr->keepalive) - printf(_(" Outfill:%d Keepalive:%d"), ptr->outfill, ptr->keepalive); -#endif - printf("\n"); - - /* If needed, display the interface statistics. */ - - if (ptr->statistics_valid) { - /* XXX: statistics are currently only printed for the primary address, - * not for the aliases, although strictly speaking they're shared - * by all addresses. - */ - printf(" "); - - printf(_("RX packets:%Lu errors:%lu dropped:%lu overruns:%lu frame:%lu\n"), - ptr->stats.rx_packets, ptr->stats.rx_errors, - ptr->stats.rx_dropped, ptr->stats.rx_fifo_errors, - ptr->stats.rx_frame_errors); - if (can_compress) - printf(_(" compressed:%lu\n"), - ptr->stats.rx_compressed); - printf(" "); - printf(_("TX packets:%Lu errors:%lu dropped:%lu overruns:%lu carrier:%lu\n"), - ptr->stats.tx_packets, ptr->stats.tx_errors, - ptr->stats.tx_dropped, ptr->stats.tx_fifo_errors, - ptr->stats.tx_carrier_errors); - printf(_(" collisions:%lu "), ptr->stats.collisions); - if (can_compress) - printf(_("compressed:%lu "), ptr->stats.tx_compressed); - if (ptr->tx_queue_len != -1) - printf(_("txqueuelen:%d "), ptr->tx_queue_len); - printf("\n R"); - print_bytes_scaled(ptr->stats.rx_bytes, " T"); - print_bytes_scaled(ptr->stats.tx_bytes, "\n"); - - } - - if ((ptr->map.irq || ptr->map.mem_start || ptr->map.dma || - ptr->map.base_addr)) { - printf(" "); - if (ptr->map.irq) - printf(_("Interrupt:%d "), ptr->map.irq); - if (ptr->map.base_addr >= 0x100) /* Only print devices using it for - I/O maps */ - printf(_("Base address:0x%lx "), - (unsigned long) ptr->map.base_addr); - if (ptr->map.mem_start) { - printf(_("Memory:%lx-%lx "), ptr->map.mem_start, - ptr->map.mem_end); - } - if (ptr->map.dma) - printf(_("DMA chan:%x "), ptr->map.dma); - printf("\n"); - } - printf("\n"); -} - - -static int do_if_print(struct interface *ife, void *cookie) -{ - int *opt_a = (int *) cookie; - int res; - - res = do_if_fetch(ife); - if (res >= 0) { - if ((ife->flags & IFF_UP) || *opt_a) - ife_print(ife); - } - return res; -} - -static struct interface *lookup_interface(char *name) -{ - struct interface *ife = NULL; - - if (if_readlist_proc(name) < 0) - return NULL; - ife = add_interface(name); - return ife; -} - -/* for ipv4 add/del modes */ -static int if_print(char *ifname) -{ - int res; - - if (!ifname) { - res = for_all_interfaces(do_if_print, &interface_opt_a); - } else { - struct interface *ife; - - ife = lookup_interface(ifname); - res = do_if_fetch(ife); - if (res >= 0) - ife_print(ife); - } - return res; -} - -int display_interfaces(char *ifname) -{ - int status; - - /* Create a channel to the NET kernel. */ - if ((skfd = sockets_open(0)) < 0) { - bb_perror_msg_and_die("socket"); - } - - /* Do we have to show the current setup? */ - status = if_print(ifname); -#ifdef CONFIG_FEATURE_CLEAN_UP - sockets_close(); -#endif - exit(status < 0); -} diff --git a/networking/Makefile.in b/networking/Makefile.in index ecfd8235b..376ecea63 100644 --- a/networking/Makefile.in +++ b/networking/Makefile.in @@ -17,7 +17,7 @@ NETWORKING-$(CONFIG_FTPGET) += ftpgetput.o NETWORKING-$(CONFIG_FTPPUT) += ftpgetput.o NETWORKING-$(CONFIG_HOSTNAME) += hostname.o NETWORKING-$(CONFIG_HTTPD) += httpd.o -NETWORKING-$(CONFIG_IFCONFIG) += ifconfig.o +NETWORKING-$(CONFIG_IFCONFIG) += ifconfig.o interface.o NETWORKING-$(CONFIG_IFUPDOWN) += ifupdown.o NETWORKING-$(CONFIG_INETD) += inetd.o NETWORKING-$(CONFIG_IP) += ip.o diff --git a/networking/interface.c b/networking/interface.c new file mode 100644 index 000000000..ce7d67da7 --- /dev/null +++ b/networking/interface.c @@ -0,0 +1,2093 @@ +/* + * stolen from net-tools-1.59 and stripped down for busybox by + * Erik Andersen + * + * Heavily modified by Manuel Novoa III Mar 12, 2001 + * + * Pruned unused code using KEEP_UNUSED define. + * Added print_bytes_scaled function to reduce code size. + * Added some (potentially) missing defines. + * Improved display support for -a and for a named interface. + * + * ----------------------------------------------------------- + * + * ifconfig This file contains an implementation of the command + * that either displays or sets the characteristics of + * one or more of the system's networking interfaces. + * + * Version: $Id: interface.c,v 1.25 2004/08/26 21:45:21 andersen Exp $ + * + * Author: Fred N. van Kempen, + * and others. Copyright 1993 MicroWalt Corporation + * + * This program is free software; you can redistribute it + * and/or modify it under the terms of the GNU General + * Public License as published by the Free Software + * Foundation; either version 2 of the License, or (at + * your option) any later version. + * + * Patched to support 'add' and 'del' keywords for INET(4) addresses + * by Mrs. Brisby + * + * {1.34} - 19980630 - Arnaldo Carvalho de Melo + * - gettext instead of catgets for i18n + * 10/1998 - Andi Kleen. Use interface list primitives. + * 20001008 - Bernd Eckenfels, Patch from RH for setting mtu + * (default AF was wrong) + */ + +/* #define KEEP_UNUSED */ + +/* + * + * Protocol Families. + * + */ +#define HAVE_AFINET 1 +#undef HAVE_AFIPX +#undef HAVE_AFATALK +#undef HAVE_AFNETROM +#undef HAVE_AFX25 +#undef HAVE_AFECONET +#undef HAVE_AFASH + +/* + * + * Device Hardware types. + * + */ +#define HAVE_HWETHER 1 +#define HAVE_HWPPP 1 +#undef HAVE_HWSLIP + + +#include "inet_common.h" +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "libbb.h" + +#ifdef CONFIG_FEATURE_IPV6 +# define HAVE_AFINET6 1 +#else +# undef HAVE_AFINET6 +#endif + +#define _(x) x +#define _PATH_PROCNET_DEV "/proc/net/dev" +#define _PATH_PROCNET_IFINET6 "/proc/net/if_inet6" +#define new(p) ((p) = xcalloc(1,sizeof(*(p)))) +#define KRELEASE(maj,min,patch) ((maj) * 65536 + (min)*256 + (patch)) + +#ifdef HAVE_HWSLIP +#include +#endif + +#if HAVE_AFINET6 + +#ifndef _LINUX_IN6_H +/* + * This is in linux/include/net/ipv6.h. + */ + +struct in6_ifreq { + struct in6_addr ifr6_addr; + uint32_t ifr6_prefixlen; + unsigned int ifr6_ifindex; +}; + +#endif + +#endif /* HAVE_AFINET6 */ + +#if HAVE_AFIPX +#if (__GLIBC__ >= 2) && (__GLIBC_MINOR__ >= 1) +#include +#endif +#endif + +/* Defines for glibc2.0 users. */ +#ifndef SIOCSIFTXQLEN +#define SIOCSIFTXQLEN 0x8943 +#define SIOCGIFTXQLEN 0x8942 +#endif + +/* ifr_qlen is ifru_ivalue, but it isn't present in 2.0 kernel headers */ +#ifndef ifr_qlen +#define ifr_qlen ifr_ifru.ifru_mtu +#endif + +#ifndef HAVE_TXQUEUELEN +#define HAVE_TXQUEUELEN 1 +#endif + +#ifndef IFF_DYNAMIC +#define IFF_DYNAMIC 0x8000 /* dialup device with changing addresses */ +#endif + +/* This structure defines protocol families and their handlers. */ +struct aftype { + const char *name; + const char *title; + int af; + int alen; + char *(*print) (unsigned char *); + char *(*sprint) (struct sockaddr *, int numeric); + int (*input) (int type, char *bufp, struct sockaddr *); + void (*herror) (char *text); + int (*rprint) (int options); + int (*rinput) (int typ, int ext, char **argv); + + /* may modify src */ + int (*getmask) (char *src, struct sockaddr * mask, char *name); + + int fd; + char *flag_file; +}; + +#ifdef KEEP_UNUSED + +static int flag_unx; + +#ifdef HAVE_AFIPX +static int flag_ipx; +#endif +#ifdef HAVE_AFX25 +static int flag_ax25; +#endif +#ifdef HAVE_AFATALK +static int flag_ddp; +#endif +#ifdef HAVE_AFNETROM +static int flag_netrom; +#endif +static int flag_inet; + +#ifdef HAVE_AFINET6 +static int flag_inet6; +#endif +#ifdef HAVE_AFECONET +static int flag_econet; +#endif +#ifdef HAVE_AFX25 +static int flag_x25 = 0; +#endif +#ifdef HAVE_AFASH +static int flag_ash; +#endif + + +static struct aftrans_t { + char *alias; + char *name; + int *flag; +} aftrans[] = { + +#ifdef HAVE_AFX25 + { + "ax25", "ax25", &flag_ax25}, +#endif + { + "ip", "inet", &flag_inet}, +#ifdef HAVE_AFINET6 + { + "ip6", "inet6", &flag_inet6}, +#endif +#ifdef HAVE_AFIPX + { + "ipx", "ipx", &flag_ipx}, +#endif +#ifdef HAVE_AFATALK + { + "appletalk", "ddp", &flag_ddp}, +#endif +#ifdef HAVE_AFNETROM + { + "netrom", "netrom", &flag_netrom}, +#endif + { + "inet", "inet", &flag_inet}, +#ifdef HAVE_AFINET6 + { + "inet6", "inet6", &flag_inet6}, +#endif +#ifdef HAVE_AFATALK + { + "ddp", "ddp", &flag_ddp}, +#endif + { + "unix", "unix", &flag_unx}, { + "tcpip", "inet", &flag_inet}, +#ifdef HAVE_AFECONET + { + "econet", "ec", &flag_econet}, +#endif +#ifdef HAVE_AFX25 + { + "x25", "x25", &flag_x25}, +#endif +#ifdef HAVE_AFASH + { + "ash", "ash", &flag_ash}, +#endif + { + 0, 0, 0} +}; + +static char afname[256] = ""; +#endif /* KEEP_UNUSED */ + +#if HAVE_AFUNIX + +/* Display a UNIX domain address. */ +static char *UNIX_print(unsigned char *ptr) +{ + return (ptr); +} + + +/* Display a UNIX domain address. */ +static char *UNIX_sprint(struct sockaddr *sap, int numeric) +{ + static char buf[64]; + + if (sap->sa_family == 0xFFFF || sap->sa_family == 0) + return safe_strncpy(buf, _("[NONE SET]"), sizeof(buf)); + return (UNIX_print(sap->sa_data)); +} + + +static struct aftype unix_aftype = { + "unix", "UNIX Domain", AF_UNIX, 0, + UNIX_print, UNIX_sprint, NULL, NULL, + NULL, NULL, NULL, + -1, + "/proc/net/unix" +}; +#endif /* HAVE_AFUNIX */ + +#if HAVE_AFINET + +#ifdef KEEP_UNUSED +static void INET_reserror(char *text) +{ + herror(text); +} + +/* Display an Internet socket address. */ +static char *INET_print(unsigned char *ptr) +{ + return (inet_ntoa((*(struct in_addr *) ptr))); +} +#endif /* KEEP_UNUSED */ + +/* Display an Internet socket address. */ +static char *INET_sprint(struct sockaddr *sap, int numeric) +{ + static char buff[128]; + + if (sap->sa_family == 0xFFFF || sap->sa_family == 0) + return safe_strncpy(buff, _("[NONE SET]"), sizeof(buff)); + + if (INET_rresolve(buff, sizeof(buff), (struct sockaddr_in *) sap, + numeric, 0xffffff00) != 0) + return (NULL); + + return (buff); +} + +#ifdef KEEP_UNUSED +static char *INET_sprintmask(struct sockaddr *sap, int numeric, + unsigned int netmask) +{ + static char buff[128]; + + if (sap->sa_family == 0xFFFF || sap->sa_family == 0) + return safe_strncpy(buff, _("[NONE SET]"), sizeof(buff)); + if (INET_rresolve(buff, sizeof(buff), (struct sockaddr_in *) sap, + numeric, netmask) != 0) + return (NULL); + return (buff); +} + +static int INET_getsock(char *bufp, struct sockaddr *sap) +{ + char *sp = bufp, *bp; + unsigned int i; + unsigned val; + struct sockaddr_in *sin; + + sin = (struct sockaddr_in *) sap; + sin->sin_family = AF_INET; + sin->sin_port = 0; + + val = 0; + bp = (char *) &val; + for (i = 0; i < sizeof(sin->sin_addr.s_addr); i++) { + *sp = toupper(*sp); + + if ((*sp >= 'A') && (*sp <= 'F')) + bp[i] |= (int) (*sp - 'A') + 10; + else if ((*sp >= '0') && (*sp <= '9')) + bp[i] |= (int) (*sp - '0'); + else + return (-1); + + bp[i] <<= 4; + sp++; + *sp = toupper(*sp); + + if ((*sp >= 'A') && (*sp <= 'F')) + bp[i] |= (int) (*sp - 'A') + 10; + else if ((*sp >= '0') && (*sp <= '9')) + bp[i] |= (int) (*sp - '0'); + else + return (-1); + + sp++; + } + sin->sin_addr.s_addr = htonl(val); + + return (sp - bufp); +} + +static int INET_input(int type, char *bufp, struct sockaddr *sap) +{ + switch (type) { + case 1: + return (INET_getsock(bufp, sap)); + case 256: + return (INET_resolve(bufp, (struct sockaddr_in *) sap, 1)); + default: + return (INET_resolve(bufp, (struct sockaddr_in *) sap, 0)); + } +} + +static int INET_getnetmask(char *adr, struct sockaddr *m, char *name) +{ + struct sockaddr_in *mask = (struct sockaddr_in *) m; + char *slash, *end; + int prefix; + + if ((slash = strchr(adr, '/')) == NULL) + return 0; + + *slash++ = '\0'; + prefix = strtoul(slash, &end, 0); + if (*end != '\0') + return -1; + + if (name) { + sprintf(name, "/%d", prefix); + } + mask->sin_family = AF_INET; + mask->sin_addr.s_addr = htonl(~(0xffffffffU >> prefix)); + return 1; +} +#endif /* KEEP_UNUSED */ + +static struct aftype inet_aftype = { + "inet", "DARPA Internet", AF_INET, sizeof(unsigned long), + NULL /* UNUSED INET_print */ , INET_sprint, + NULL /* UNUSED INET_input */ , NULL /* UNUSED INET_reserror */ , + NULL /*INET_rprint */ , NULL /*INET_rinput */ , + NULL /* UNUSED INET_getnetmask */ , + -1, + NULL +}; + +#endif /* HAVE_AFINET */ + +#if HAVE_AFINET6 + +#ifdef KEEP_UNUSED +static void INET6_reserror(char *text) +{ + herror(text); +} + +/* Display an Internet socket address. */ +static char *INET6_print(unsigned char *ptr) +{ + static char name[80]; + + inet_ntop(AF_INET6, (struct in6_addr *) ptr, name, 80); + return name; +} +#endif /* KEEP_UNUSED */ + +/* Display an Internet socket address. */ +/* dirty! struct sockaddr usually doesn't suffer for inet6 addresses, fst. */ +static char *INET6_sprint(struct sockaddr *sap, int numeric) +{ + static char buff[128]; + + if (sap->sa_family == 0xFFFF || sap->sa_family == 0) + return safe_strncpy(buff, _("[NONE SET]"), sizeof(buff)); + if (INET6_rresolve + (buff, sizeof(buff), (struct sockaddr_in6 *) sap, numeric) != 0) + return safe_strncpy(buff, _("[UNKNOWN]"), sizeof(buff)); + return (buff); +} + +#ifdef KEEP_UNUSED +static int INET6_getsock(char *bufp, struct sockaddr *sap) +{ + struct sockaddr_in6 *sin6; + + sin6 = (struct sockaddr_in6 *) sap; + sin6->sin6_family = AF_INET6; + sin6->sin6_port = 0; + + if (inet_pton(AF_INET6, bufp, sin6->sin6_addr.s6_addr) <= 0) + return (-1); + + return 16; /* ?;) */ +} + +static int INET6_input(int type, char *bufp, struct sockaddr *sap) +{ + switch (type) { + case 1: + return (INET6_getsock(bufp, sap)); + default: + return (INET6_resolve(bufp, (struct sockaddr_in6 *) sap)); + } +} +#endif /* KEEP_UNUSED */ + +static struct aftype inet6_aftype = { + "inet6", "IPv6", AF_INET6, sizeof(struct in6_addr), + NULL /* UNUSED INET6_print */ , INET6_sprint, + NULL /* UNUSED INET6_input */ , NULL /* UNUSED INET6_reserror */ , + NULL /*INET6_rprint */ , NULL /*INET6_rinput */ , + NULL /* UNUSED INET6_getnetmask */ , + -1, + NULL +}; + +#endif /* HAVE_AFINET6 */ + +/* Display an UNSPEC address. */ +static char *UNSPEC_print(unsigned char *ptr) +{ + static char buff[sizeof(struct sockaddr) * 3 + 1]; + char *pos; + unsigned int i; + + pos = buff; + for (i = 0; i < sizeof(struct sockaddr); i++) { + /* careful -- not every libc's sprintf returns # bytes written */ + sprintf(pos, "%02X-", (*ptr++ & 0377)); + pos += 3; + } + /* Erase trailing "-". Works as long as sizeof(struct sockaddr) != 0 */ + *--pos = '\0'; + return (buff); +} + +/* Display an UNSPEC socket address. */ +static char *UNSPEC_sprint(struct sockaddr *sap, int numeric) +{ + static char buf[64]; + + if (sap->sa_family == 0xFFFF || sap->sa_family == 0) + return safe_strncpy(buf, _("[NONE SET]"), sizeof(buf)); + return (UNSPEC_print(sap->sa_data)); +} + +static struct aftype unspec_aftype = { + "unspec", "UNSPEC", AF_UNSPEC, 0, + UNSPEC_print, UNSPEC_sprint, NULL, NULL, + NULL, +}; + +static struct aftype * const aftypes[] = { +#if HAVE_AFUNIX + &unix_aftype, +#endif +#if HAVE_AFINET + &inet_aftype, +#endif +#if HAVE_AFINET6 + &inet6_aftype, +#endif +#if HAVE_AFAX25 + &ax25_aftype, +#endif +#if HAVE_AFNETROM + &netrom_aftype, +#endif +#if HAVE_AFROSE + &rose_aftype, +#endif +#if HAVE_AFIPX + &ipx_aftype, +#endif +#if HAVE_AFATALK + &ddp_aftype, +#endif +#if HAVE_AFECONET + &ec_aftype, +#endif +#if HAVE_AFASH + &ash_aftype, +#endif +#if HAVE_AFX25 + &x25_aftype, +#endif + &unspec_aftype, + NULL +}; + +#ifdef KEEP_UNUSED +static short sVafinit = 0; + +static void afinit() +{ + unspec_aftype.title = _("UNSPEC"); +#if HAVE_AFUNIX + unix_aftype.title = _("UNIX Domain"); +#endif +#if HAVE_AFINET + inet_aftype.title = _("DARPA Internet"); +#endif +#if HAVE_AFINET6 + inet6_aftype.title = _("IPv6"); +#endif +#if HAVE_AFAX25 + ax25_aftype.title = _("AMPR AX.25"); +#endif +#if HAVE_AFNETROM + netrom_aftype.title = _("AMPR NET/ROM"); +#endif +#if HAVE_AFIPX + ipx_aftype.title = _("Novell IPX"); +#endif +#if HAVE_AFATALK + ddp_aftype.title = _("Appletalk DDP"); +#endif +#if HAVE_AFECONET + ec_aftype.title = _("Econet"); +#endif +#if HAVE_AFX25 + x25_aftype.title = _("CCITT X.25"); +#endif +#if HAVE_AFROSE + rose_aftype.title = _("AMPR ROSE"); +#endif +#if HAVE_AFASH + ash_aftype.title = _("Ash"); +#endif + sVafinit = 1; +} + +static int aftrans_opt(const char *arg) +{ + struct aftrans_t *paft; + char *tmp1, *tmp2; + char buf[256]; + + safe_strncpy(buf, arg, sizeof(buf)); + + tmp1 = buf; + + while (tmp1) { + + tmp2 = strchr(tmp1, ','); + + if (tmp2) + *(tmp2++) = '\0'; + + paft = aftrans; + for (paft = aftrans; paft->alias; paft++) { + if (strcmp(tmp1, paft->alias)) + continue; + if (strlen(paft->name) + strlen(afname) + 1 >= sizeof(afname)) { + bb_error_msg(_("Too many address family arguments.")); + return (0); + } + if (paft->flag) + (*paft->flag)++; + if (afname[0]) + strcat(afname, ","); + strcat(afname, paft->name); + break; + } + if (!paft->alias) { + bb_error_msg(_("Unknown address family `%s'."), tmp1); + return (1); + } + tmp1 = tmp2; + } + + return (0); +} + +/* set the default AF list from the program name or a constant value */ +static void aftrans_def(char *tool, char *argv0, char *dflt) +{ + char *tmp; + char *buf; + + strcpy(afname, dflt); + + if (!(tmp = strrchr(argv0, '/'))) + tmp = argv0; /* no slash?! */ + else + tmp++; + + if (!(buf = strdup(tmp))) + return; + + if (strlen(tool) >= strlen(tmp)) { + free(buf); + return; + } + tmp = buf + (strlen(tmp) - strlen(tool)); + + if (strcmp(tmp, tool) != 0) { + free(buf); + return; + } + *tmp = '\0'; + if ((tmp = strchr(buf, '_'))) + *tmp = '\0'; + + afname[0] = '\0'; + if (aftrans_opt(buf)) + strcpy(afname, buf); + + free(buf); +} + +/* Check our protocol family table for this family. */ +static struct aftype *get_aftype(const char *name) +{ + struct aftype * const *afp; + +#ifdef KEEP_UNUSED + if (!sVafinit) + afinit(); +#endif /* KEEP_UNUSED */ + + afp = aftypes; + while (*afp != NULL) { + if (!strcmp((*afp)->name, name)) + return (*afp); + afp++; + } + if (strchr(name, ',')) + bb_error_msg(_("Please don't supply more than one address family.")); + return (NULL); +} +#endif /* KEEP_UNUSED */ + +/* Check our protocol family table for this family. */ +static struct aftype *get_afntype(int af) +{ + struct aftype * const *afp; + +#ifdef KEEP_UNUSED + if (!sVafinit) + afinit(); +#endif /* KEEP_UNUSED */ + + afp = aftypes; + while (*afp != NULL) { + if ((*afp)->af == af) + return (*afp); + afp++; + } + return (NULL); +} + +/* Check our protocol family table for this family and return its socket */ +static int get_socket_for_af(int af) +{ + struct aftype * const *afp; + +#ifdef KEEP_UNUSED + if (!sVafinit) + afinit(); +#endif /* KEEP_UNUSED */ + + afp = aftypes; + while (*afp != NULL) { + if ((*afp)->af == af) + return (*afp)->fd; + afp++; + } + return -1; +} + +#ifdef KEEP_UNUSED +/* type: 0=all, 1=getroute */ +static void print_aflist(int type) +{ + int count = 0; + char *txt; + struct aftype * const *afp; + +#ifdef KEEP_UNUSED + if (!sVafinit) + afinit(); +#endif /* KEEP_UNUSED */ + + afp = aftypes; + while (*afp != NULL) { + if ((type == 1 && ((*afp)->rprint == NULL)) || ((*afp)->af == 0)) { + afp++; + continue; + } + if ((count % 3) == 0) + fprintf(stderr, count ? "\n " : " "); + txt = (*afp)->name; + if (!txt) + txt = ".."; + fprintf(stderr, "%s (%s) ", txt, _((*afp)->title)); + count++; + afp++; + } + fprintf(stderr, "\n"); +} +#endif /* KEEP_UNUSED */ + +struct user_net_device_stats { + unsigned long long rx_packets; /* total packets received */ + unsigned long long tx_packets; /* total packets transmitted */ + unsigned long long rx_bytes; /* total bytes received */ + unsigned long long tx_bytes; /* total bytes transmitted */ + unsigned long rx_errors; /* bad packets received */ + unsigned long tx_errors; /* packet transmit problems */ + unsigned long rx_dropped; /* no space in linux buffers */ + unsigned long tx_dropped; /* no space available in linux */ + unsigned long rx_multicast; /* multicast packets received */ + unsigned long rx_compressed; + unsigned long tx_compressed; + unsigned long collisions; + + /* detailed rx_errors: */ + unsigned long rx_length_errors; + unsigned long rx_over_errors; /* receiver ring buff overflow */ + unsigned long rx_crc_errors; /* recved pkt with crc error */ + unsigned long rx_frame_errors; /* recv'd frame alignment error */ + unsigned long rx_fifo_errors; /* recv'r fifo overrun */ + unsigned long rx_missed_errors; /* receiver missed packet */ + /* detailed tx_errors */ + unsigned long tx_aborted_errors; + unsigned long tx_carrier_errors; + unsigned long tx_fifo_errors; + unsigned long tx_heartbeat_errors; + unsigned long tx_window_errors; +}; + +struct interface { + struct interface *next, *prev; + char name[IFNAMSIZ]; /* interface name */ + short type; /* if type */ + short flags; /* various flags */ + int metric; /* routing metric */ + int mtu; /* MTU value */ + int tx_queue_len; /* transmit queue length */ + struct ifmap map; /* hardware setup */ + struct sockaddr addr; /* IP address */ + struct sockaddr dstaddr; /* P-P IP address */ + struct sockaddr broadaddr; /* IP broadcast address */ + struct sockaddr netmask; /* IP network mask */ + struct sockaddr ipxaddr_bb; /* IPX network address */ + struct sockaddr ipxaddr_sn; /* IPX network address */ + struct sockaddr ipxaddr_e3; /* IPX network address */ + struct sockaddr ipxaddr_e2; /* IPX network address */ + struct sockaddr ddpaddr; /* Appletalk DDP address */ + struct sockaddr ecaddr; /* Econet address */ + int has_ip; + int has_ipx_bb; + int has_ipx_sn; + int has_ipx_e3; + int has_ipx_e2; + int has_ax25; + int has_ddp; + int has_econet; + char hwaddr[32]; /* HW address */ + int statistics_valid; + struct user_net_device_stats stats; /* statistics */ + int keepalive; /* keepalive value for SLIP */ + int outfill; /* outfill value for SLIP */ +}; + + +int interface_opt_a = 0; /* show all interfaces */ + +#ifdef KEEP_UNUSED +static int opt_i = 0; /* show the statistics */ +static int opt_v = 0; /* debugging output flag */ + +static int addr_family = 0; /* currently selected AF */ +#endif /* KEEP_UNUSED */ + +static struct interface *int_list, *int_last; +static int skfd = -1; /* generic raw socket desc. */ + + +static int sockets_open(int family) +{ + struct aftype * const *aft; + int sfd = -1; + static int force = -1; + + if (force < 0) { + force = 0; + if (get_kernel_revision() < KRELEASE(2, 1, 0)) + force = 1; + if (access("/proc/net", R_OK)) + force = 1; + } + for (aft = aftypes; *aft; aft++) { + struct aftype *af = *aft; + int type = SOCK_DGRAM; + + if (af->af == AF_UNSPEC) + continue; + if (family && family != af->af) + continue; + if (af->fd != -1) { + sfd = af->fd; + continue; + } + /* Check some /proc file first to not stress kmod */ + if (!family && !force && af->flag_file) { + if (access(af->flag_file, R_OK)) + continue; + } +#if HAVE_AFNETROM + if (af->af == AF_NETROM) + type = SOCK_SEQPACKET; +#endif +#if HAVE_AFX25 + if (af->af == AF_X25) + type = SOCK_SEQPACKET; +#endif + af->fd = socket(af->af, type, 0); + if (af->fd >= 0) + sfd = af->fd; + } + if (sfd < 0) { + bb_error_msg(_("No usable address families found.")); + } + return sfd; +} + +#ifdef CONFIG_FEATURE_CLEAN_UP +static void sockets_close(void) +{ + struct aftype * const *aft; + for (aft = aftypes; *aft != NULL; aft++) { + struct aftype *af = *aft; + if( af->fd != -1 ) { + close(af->fd); + af->fd = -1; + } + } +} +#endif + +/* like strcmp(), but knows about numbers */ +static int nstrcmp(const char *a, const char *b) +{ + const char *a_ptr = a; + const char *b_ptr = b; + + while (*a == *b) { + if (*a == '\0') { + return 0; + } + if (!isdigit(*a) && isdigit(*(a+1))) { + a_ptr = a+1; + b_ptr = b+1; + } + a++; + b++; + } + + if (isdigit(*a) && isdigit(*b)) { + return atoi(a_ptr) > atoi(b_ptr) ? 1 : -1; + } + return *a - *b; +} + +static struct interface *add_interface(char *name) +{ + struct interface *ife, **nextp, *new; + + for (ife = int_last; ife; ife = ife->prev) { + int n = nstrcmp(ife->name, name); + + if (n == 0) + return ife; + if (n < 0) + break; + } + new(new); + safe_strncpy(new->name, name, IFNAMSIZ); + nextp = ife ? &ife->next : &int_list; + new->prev = ife; + new->next = *nextp; + if (new->next) + new->next->prev = new; + else + int_last = new; + *nextp = new; + return new; +} + + +static int if_readconf(void) +{ + int numreqs = 30; + struct ifconf ifc; + struct ifreq *ifr; + int n, err = -1; + int skfd2; + + /* SIOCGIFCONF currently seems to only work properly on AF_INET sockets + (as of 2.1.128) */ + skfd2 = get_socket_for_af(AF_INET); + if (skfd2 < 0) { + bb_perror_msg(("warning: no inet socket available")); + /* Try to soldier on with whatever socket we can get hold of. */ + skfd2 = sockets_open(0); + if (skfd2 < 0) + return -1; + } + + ifc.ifc_buf = NULL; + for (;;) { + ifc.ifc_len = sizeof(struct ifreq) * numreqs; + ifc.ifc_buf = xrealloc(ifc.ifc_buf, ifc.ifc_len); + + if (ioctl(skfd2, SIOCGIFCONF, &ifc) < 0) { + perror("SIOCGIFCONF"); + goto out; + } + if (ifc.ifc_len == sizeof(struct ifreq) * numreqs) { + /* assume it overflowed and try again */ + numreqs += 10; + continue; + } + break; + } + + ifr = ifc.ifc_req; + for (n = 0; n < ifc.ifc_len; n += sizeof(struct ifreq)) { + add_interface(ifr->ifr_name); + ifr++; + } + err = 0; + + out: + free(ifc.ifc_buf); + return err; +} + +static char *get_name(char *name, char *p) +{ + /* Extract [:] from nul-terminated p where p matches + [:]: after leading whitespace. + If match is not made, set name empty and return unchanged p */ + int namestart=0, nameend=0, aliasend; + while (isspace(p[namestart])) + namestart++; + nameend=namestart; + while (p[nameend] && p[nameend]!=':' && !isspace(p[nameend])) + nameend++; + if (p[nameend]==':') { + aliasend=nameend+1; + while (p[aliasend] && isdigit(p[aliasend])) + aliasend++; + if (p[aliasend]==':') { + nameend=aliasend; + } + if ((nameend-namestart)stats, 0, sizeof(struct user_net_device_stats)); + + sscanf(bp, ss_fmt[procnetdev_vsn], + &ife->stats.rx_bytes, /* missing for 0 */ + &ife->stats.rx_packets, + &ife->stats.rx_errors, + &ife->stats.rx_dropped, + &ife->stats.rx_fifo_errors, + &ife->stats.rx_frame_errors, + &ife->stats.rx_compressed, /* missing for <= 1 */ + &ife->stats.rx_multicast, /* missing for <= 1 */ + &ife->stats.tx_bytes, /* missing for 0 */ + &ife->stats.tx_packets, + &ife->stats.tx_errors, + &ife->stats.tx_dropped, + &ife->stats.tx_fifo_errors, + &ife->stats.collisions, + &ife->stats.tx_carrier_errors, + &ife->stats.tx_compressed /* missing for <= 1 */ + ); + + if (procnetdev_vsn <= 1) { + if (procnetdev_vsn == 0) { + ife->stats.rx_bytes = 0; + ife->stats.tx_bytes = 0; + } + ife->stats.rx_multicast = 0; + ife->stats.rx_compressed = 0; + ife->stats.tx_compressed = 0; + } +} + +static inline int procnetdev_version(char *buf) +{ + if (strstr(buf, "compressed")) + return 2; + if (strstr(buf, "bytes")) + return 1; + return 0; +} + +static int if_readlist_proc(char *target) +{ + static int proc_read; + FILE *fh; + char buf[512]; + struct interface *ife; + int err, procnetdev_vsn; + + if (proc_read) + return 0; + if (!target) + proc_read = 1; + + fh = fopen(_PATH_PROCNET_DEV, "r"); + if (!fh) { + bb_perror_msg(_("Warning: cannot open %s. Limited output."), _PATH_PROCNET_DEV); + return if_readconf(); + } + fgets(buf, sizeof buf, fh); /* eat line */ + fgets(buf, sizeof buf, fh); + + procnetdev_vsn = procnetdev_version(buf); + + err = 0; + while (fgets(buf, sizeof buf, fh)) { + char *s, name[128]; + + s = get_name(name, buf); + ife = add_interface(name); + get_dev_fields(s, ife, procnetdev_vsn); + ife->statistics_valid = 1; + if (target && !strcmp(target, name)) + break; + } + if (ferror(fh)) { + perror(_PATH_PROCNET_DEV); + err = -1; + proc_read = 0; + } + fclose(fh); + return err; +} + +static int if_readlist(void) +{ + int err = if_readlist_proc(NULL); + + if (!err) + err = if_readconf(); + return err; +} + +static int for_all_interfaces(int (*doit) (struct interface *, void *), + void *cookie) +{ + struct interface *ife; + + if (!int_list && (if_readlist() < 0)) + return -1; + for (ife = int_list; ife; ife = ife->next) { + int err = doit(ife, cookie); + + if (err) + return err; + } + return 0; +} + +/* Support for fetching an IPX address */ + +#if HAVE_AFIPX +static int ipx_getaddr(int sock, int ft, struct ifreq *ifr) +{ + ((struct sockaddr_ipx *) &ifr->ifr_addr)->sipx_type = ft; + return ioctl(sock, SIOCGIFADDR, ifr); +} +#endif + + +/* Fetch the interface configuration from the kernel. */ +static int if_fetch(struct interface *ife) +{ + struct ifreq ifr; + int fd; + char *ifname = ife->name; + + strcpy(ifr.ifr_name, ifname); + if (ioctl(skfd, SIOCGIFFLAGS, &ifr) < 0) + return (-1); + ife->flags = ifr.ifr_flags; + + strcpy(ifr.ifr_name, ifname); + if (ioctl(skfd, SIOCGIFHWADDR, &ifr) < 0) + memset(ife->hwaddr, 0, 32); + else + memcpy(ife->hwaddr, ifr.ifr_hwaddr.sa_data, 8); + + ife->type = ifr.ifr_hwaddr.sa_family; + + strcpy(ifr.ifr_name, ifname); + if (ioctl(skfd, SIOCGIFMETRIC, &ifr) < 0) + ife->metric = 0; + else + ife->metric = ifr.ifr_metric; + + strcpy(ifr.ifr_name, ifname); + if (ioctl(skfd, SIOCGIFMTU, &ifr) < 0) + ife->mtu = 0; + else + ife->mtu = ifr.ifr_mtu; + +#ifdef HAVE_HWSLIP + if (ife->type == ARPHRD_SLIP || ife->type == ARPHRD_CSLIP || + ife->type == ARPHRD_SLIP6 || ife->type == ARPHRD_CSLIP6 || + ife->type == ARPHRD_ADAPT) { +#ifdef SIOCGOUTFILL + strcpy(ifr.ifr_name, ifname); + if (ioctl(skfd, SIOCGOUTFILL, &ifr) < 0) + ife->outfill = 0; + else + ife->outfill = (unsigned int) ifr.ifr_data; +#endif +#ifdef SIOCGKEEPALIVE + strcpy(ifr.ifr_name, ifname); + if (ioctl(skfd, SIOCGKEEPALIVE, &ifr) < 0) + ife->keepalive = 0; + else + ife->keepalive = (unsigned int) ifr.ifr_data; +#endif + } +#endif + +#ifdef SIOCGIFMAP + strcpy(ifr.ifr_name, ifname); + if (ioctl(skfd, SIOCGIFMAP, &ifr) == 0) + ife->map = ifr.ifr_map; + else +#endif + memset(&ife->map, 0, sizeof(struct ifmap)); + +#ifdef HAVE_TXQUEUELEN + strcpy(ifr.ifr_name, ifname); + if (ioctl(skfd, SIOCGIFTXQLEN, &ifr) < 0) + ife->tx_queue_len = -1; /* unknown value */ + else + ife->tx_queue_len = ifr.ifr_qlen; +#else + ife->tx_queue_len = -1; /* unknown value */ +#endif + +#if HAVE_AFINET + /* IPv4 address? */ + fd = get_socket_for_af(AF_INET); + if (fd >= 0) { + strcpy(ifr.ifr_name, ifname); + ifr.ifr_addr.sa_family = AF_INET; + if (ioctl(fd, SIOCGIFADDR, &ifr) == 0) { + ife->has_ip = 1; + ife->addr = ifr.ifr_addr; + strcpy(ifr.ifr_name, ifname); + if (ioctl(fd, SIOCGIFDSTADDR, &ifr) < 0) + memset(&ife->dstaddr, 0, sizeof(struct sockaddr)); + else + ife->dstaddr = ifr.ifr_dstaddr; + + strcpy(ifr.ifr_name, ifname); + if (ioctl(fd, SIOCGIFBRDADDR, &ifr) < 0) + memset(&ife->broadaddr, 0, sizeof(struct sockaddr)); + else + ife->broadaddr = ifr.ifr_broadaddr; + + strcpy(ifr.ifr_name, ifname); + if (ioctl(fd, SIOCGIFNETMASK, &ifr) < 0) + memset(&ife->netmask, 0, sizeof(struct sockaddr)); + else + ife->netmask = ifr.ifr_netmask; + } else + memset(&ife->addr, 0, sizeof(struct sockaddr)); + } +#endif + +#if HAVE_AFATALK + /* DDP address maybe ? */ + fd = get_socket_for_af(AF_APPLETALK); + if (fd >= 0) { + strcpy(ifr.ifr_name, ifname); + if (ioctl(fd, SIOCGIFADDR, &ifr) == 0) { + ife->ddpaddr = ifr.ifr_addr; + ife->has_ddp = 1; + } + } +#endif + +#if HAVE_AFIPX + /* Look for IPX addresses with all framing types */ + fd = get_socket_for_af(AF_IPX); + if (fd >= 0) { + strcpy(ifr.ifr_name, ifname); + if (!ipx_getaddr(fd, IPX_FRAME_ETHERII, &ifr)) { + ife->has_ipx_bb = 1; + ife->ipxaddr_bb = ifr.ifr_addr; + } + strcpy(ifr.ifr_name, ifname); + if (!ipx_getaddr(fd, IPX_FRAME_SNAP, &ifr)) { + ife->has_ipx_sn = 1; + ife->ipxaddr_sn = ifr.ifr_addr; + } + strcpy(ifr.ifr_name, ifname); + if (!ipx_getaddr(fd, IPX_FRAME_8023, &ifr)) { + ife->has_ipx_e3 = 1; + ife->ipxaddr_e3 = ifr.ifr_addr; + } + strcpy(ifr.ifr_name, ifname); + if (!ipx_getaddr(fd, IPX_FRAME_8022, &ifr)) { + ife->has_ipx_e2 = 1; + ife->ipxaddr_e2 = ifr.ifr_addr; + } + } +#endif + +#if HAVE_AFECONET + /* Econet address maybe? */ + fd = get_socket_for_af(AF_ECONET); + if (fd >= 0) { + strcpy(ifr.ifr_name, ifname); + if (ioctl(fd, SIOCGIFADDR, &ifr) == 0) { + ife->ecaddr = ifr.ifr_addr; + ife->has_econet = 1; + } + } +#endif + + return 0; +} + + +static int do_if_fetch(struct interface *ife) +{ + if (if_fetch(ife) < 0) { + char *errmsg; + + if (errno == ENODEV) { + /* Give better error message for this case. */ + errmsg = _("Device not found"); + } else { + errmsg = strerror(errno); + } + bb_error_msg(_("%s: error fetching interface information: %s"), + ife->name, errmsg); + return -1; + } + return 0; +} + +/* This structure defines hardware protocols and their handlers. */ +struct hwtype { + const char *name; + const char *title; + int type; + int alen; + char *(*print) (unsigned char *); + int (*input) (char *, struct sockaddr *); + int (*activate) (int fd); + int suppress_null_addr; +}; + +static const struct hwtype unspec_hwtype = { + "unspec", "UNSPEC", -1, 0, + UNSPEC_print, NULL, NULL +}; + +static const struct hwtype loop_hwtype = { + "loop", "Local Loopback", ARPHRD_LOOPBACK, 0, + NULL, NULL, NULL +}; + +#if HAVE_HWETHER +#include + +#if (__GLIBC__ >=2 && __GLIBC_MINOR >= 1) || defined(_NEWLIB_VERSION) +#include +#else +#include +#endif + +/* Display an Ethernet address in readable format. */ +static char *pr_ether(unsigned char *ptr) +{ + static char buff[64]; + + snprintf(buff, sizeof(buff), "%02X:%02X:%02X:%02X:%02X:%02X", + (ptr[0] & 0377), (ptr[1] & 0377), (ptr[2] & 0377), + (ptr[3] & 0377), (ptr[4] & 0377), (ptr[5] & 0377) + ); + return (buff); +} + +#ifdef KEEP_UNUSED +/* Input an Ethernet address and convert to binary. */ +static int in_ether(char *bufp, struct sockaddr *sap) +{ + unsigned char *ptr; + char c, *orig; + int i; + unsigned val; + + sap->sa_family = ether_hwtype.type; + ptr = sap->sa_data; + + i = 0; + orig = bufp; + while ((*bufp != '\0') && (i < ETH_ALEN)) { + val = 0; + c = *bufp++; + if (isdigit(c)) + val = c - '0'; + else if (c >= 'a' && c <= 'f') + val = c - 'a' + 10; + else if (c >= 'A' && c <= 'F') + val = c - 'A' + 10; + else { +#ifdef DEBUG + bb_error_msg(_("in_ether(%s): invalid ether address!\n"), orig); +#endif + errno = EINVAL; + return (-1); + } + val <<= 4; + c = *bufp; + if (isdigit(c)) + val |= c - '0'; + else if (c >= 'a' && c <= 'f') + val |= c - 'a' + 10; + else if (c >= 'A' && c <= 'F') + val |= c - 'A' + 10; + else if (c == ':' || c == 0) + val >>= 4; + else { +#ifdef DEBUG + bb_error_msg(_("in_ether(%s): invalid ether address!"), orig); +#endif + errno = EINVAL; + return (-1); + } + if (c != 0) + bufp++; + *ptr++ = (unsigned char) (val & 0377); + i++; + + /* We might get a semicolon here - not required. */ + if (*bufp == ':') { +#ifdef DEBUG + if (i == ETH_ALEN) { + bb_error_msg(_("in_ether(%s): trailing : ignored!"), orig); + } +#endif + bufp++; + } + } + +#ifdef DEBUG + /* That's it. Any trailing junk? */ + if ((i == ETH_ALEN) && (*bufp != '\0')) { + bb_error_msg(_("in_ether(%s): trailing junk!"), orig); + errno = EINVAL; + return (-1); + } + bb_error_msg("in_ether(%s): %s", orig, pr_ether(sap->sa_data)); +#endif + + return (0); +} +#endif /* KEEP_UNUSED */ + + +static const struct hwtype ether_hwtype = { + "ether", "Ethernet", ARPHRD_ETHER, ETH_ALEN, + pr_ether, NULL /* UNUSED in_ether */ , NULL +}; + + +#endif /* HAVE_HWETHER */ + + +#if HAVE_HWPPP + +#include + +#ifdef KEEP_UNUSED +/* Start the PPP encapsulation on the file descriptor. */ +static int do_ppp(int fd) +{ + bb_error_msg(_("You cannot start PPP with this program.")); + return -1; +} +#endif /* KEEP_UNUSED */ + +static const struct hwtype ppp_hwtype = { + "ppp", "Point-Point Protocol", ARPHRD_PPP, 0, + NULL, NULL, NULL /* UNUSED do_ppp */ , 0 +}; + + +#endif /* HAVE_PPP */ + +static const struct hwtype * const hwtypes[] = { + + &loop_hwtype, + +#if HAVE_HWSLIP + &slip_hwtype, + &cslip_hwtype, + &slip6_hwtype, + &cslip6_hwtype, + &adaptive_hwtype, +#endif +#if HAVE_HWSTRIP + &strip_hwtype, +#endif +#if HAVE_HWASH + &ash_hwtype, +#endif +#if HAVE_HWETHER + ðer_hwtype, +#endif +#if HAVE_HWTR + &tr_hwtype, +#ifdef ARPHRD_IEEE802_TR + &tr_hwtype1, +#endif +#endif +#if HAVE_HWAX25 + &ax25_hwtype, +#endif +#if HAVE_HWNETROM + &netrom_hwtype, +#endif +#if HAVE_HWROSE + &rose_hwtype, +#endif +#if HAVE_HWTUNNEL + &tunnel_hwtype, +#endif +#if HAVE_HWPPP + &ppp_hwtype, +#endif +#if HAVE_HWHDLCLAPB + &hdlc_hwtype, + &lapb_hwtype, +#endif +#if HAVE_HWARC + &arcnet_hwtype, +#endif +#if HAVE_HWFR + &dlci_hwtype, + &frad_hwtype, +#endif +#if HAVE_HWSIT + &sit_hwtype, +#endif +#if HAVE_HWFDDI + &fddi_hwtype, +#endif +#if HAVE_HWHIPPI + &hippi_hwtype, +#endif +#if HAVE_HWIRDA + &irda_hwtype, +#endif +#if HAVE_HWEC + &ec_hwtype, +#endif +#if HAVE_HWX25 + &x25_hwtype, +#endif + &unspec_hwtype, + NULL +}; + +#ifdef KEEP_UNUSED +static short sVhwinit = 0; + +static void hwinit() +{ + loop_hwtype.title = _("Local Loopback"); + unspec_hwtype.title = _("UNSPEC"); +#if HAVE_HWSLIP + slip_hwtype.title = _("Serial Line IP"); + cslip_hwtype.title = _("VJ Serial Line IP"); + slip6_hwtype.title = _("6-bit Serial Line IP"); + cslip6_hwtype.title = _("VJ 6-bit Serial Line IP"); + adaptive_hwtype.title = _("Adaptive Serial Line IP"); +#endif +#if HAVE_HWETHER + ether_hwtype.title = _("Ethernet"); +#endif +#if HAVE_HWASH + ash_hwtype.title = _("Ash"); +#endif +#if HAVE_HWFDDI + fddi_hwtype.title = _("Fiber Distributed Data Interface"); +#endif +#if HAVE_HWHIPPI + hippi_hwtype.title = _("HIPPI"); +#endif +#if HAVE_HWAX25 + ax25_hwtype.title = _("AMPR AX.25"); +#endif +#if HAVE_HWROSE + rose_hwtype.title = _("AMPR ROSE"); +#endif +#if HAVE_HWNETROM + netrom_hwtype.title = _("AMPR NET/ROM"); +#endif +#if HAVE_HWX25 + x25_hwtype.title = _("generic X.25"); +#endif +#if HAVE_HWTUNNEL + tunnel_hwtype.title = _("IPIP Tunnel"); +#endif +#if HAVE_HWPPP + ppp_hwtype.title = _("Point-to-Point Protocol"); +#endif +#if HAVE_HWHDLCLAPB + hdlc_hwtype.title = _("(Cisco)-HDLC"); + lapb_hwtype.title = _("LAPB"); +#endif +#if HAVE_HWARC + arcnet_hwtype.title = _("ARCnet"); +#endif +#if HAVE_HWFR + dlci_hwtype.title = _("Frame Relay DLCI"); + frad_hwtype.title = _("Frame Relay Access Device"); +#endif +#if HAVE_HWSIT + sit_hwtype.title = _("IPv6-in-IPv4"); +#endif +#if HAVE_HWIRDA + irda_hwtype.title = _("IrLAP"); +#endif +#if HAVE_HWTR + tr_hwtype.title = _("16/4 Mbps Token Ring"); +#ifdef ARPHRD_IEEE802_TR + tr_hwtype1.title = _("16/4 Mbps Token Ring (New)"); +#endif +#endif +#if HAVE_HWEC + ec_hwtype.title = _("Econet"); +#endif + sVhwinit = 1; +} +#endif /* KEEP_UNUSED */ + +#ifdef IFF_PORTSEL +#if 0 +static const char * const if_port_text[][4] = { + /* Keep in step with */ + {"unknown", NULL, NULL, NULL}, + {"10base2", "bnc", "coax", NULL}, + {"10baseT", "utp", "tpe", NULL}, + {"AUI", "thick", "db15", NULL}, + {"100baseT", NULL, NULL, NULL}, + {"100baseTX", NULL, NULL, NULL}, + {"100baseFX", NULL, NULL, NULL}, + {NULL, NULL, NULL, NULL}, +}; +#else +static const char * const if_port_text[] = { + /* Keep in step with */ + "unknown", + "10base2", + "10baseT", + "AUI", + "100baseT", + "100baseTX", + "100baseFX", + NULL +}; +#endif +#endif + +/* Check our hardware type table for this type. */ +static const struct hwtype *get_hwntype(int type) +{ + const struct hwtype * const *hwp; + +#ifdef KEEP_UNUSED + if (!sVhwinit) + hwinit(); +#endif /* KEEP_UNUSED */ + + hwp = hwtypes; + while (*hwp != NULL) { + if ((*hwp)->type == type) + return (*hwp); + hwp++; + } + return (NULL); +} + +/* return 1 if address is all zeros */ +static int hw_null_address(const struct hwtype *hw, void *ap) +{ + unsigned int i; + unsigned char *address = (unsigned char *) ap; + + for (i = 0; i < hw->alen; i++) + if (address[i]) + return 0; + return 1; +} + +static const char TRext[] = "\0\0\0Ki\0Mi\0Gi\0Ti"; + +static void print_bytes_scaled(unsigned long long ull, const char *end) +{ + unsigned long long int_part; + const char *ext; + unsigned int frac_part; + int i; + + frac_part = 0; + ext = TRext; + int_part = ull; + i = 4; + do { +#if 0 + /* This does correct rounding and is a little larger. But it + * uses KiB as the smallest displayed unit. */ + if ((int_part < (1024*1024 - 51)) || !--i) { + i = 0; + int_part += 51; /* 1024*.05 = 51.2 */ + frac_part = ((((unsigned int) int_part) & (1024-1)) * 10) / 1024; + } + int_part /= 1024; + ext += 3; /* KiB, MiB, GiB, TiB */ +#else + if (int_part >= 1024) { + frac_part = ((((unsigned int) int_part) & (1024-1)) * 10) / 1024; + int_part /= 1024; + ext += 3; /* KiB, MiB, GiB, TiB */ + } + --i; +#endif + } while (i); + + printf("X bytes:%Lu (%Lu.%u %sB)%s", ull, int_part, frac_part, ext, end); +} + +static const char * const ife_print_flags_strs[] = { + "UP ", + "BROADCAST ", + "DEBUG ", + "LOOPBACK ", + "POINTOPOINT ", + "NOTRAILERS ", + "RUNNING ", + "NOARP ", + "PROMISC ", + "ALLMULTI ", + "SLAVE ", + "MASTER ", + "MULTICAST ", +#ifdef HAVE_DYNAMIC + "DYNAMIC " +#endif +}; + +static const unsigned short ife_print_flags_mask[] = { + IFF_UP, + IFF_BROADCAST, + IFF_DEBUG, + IFF_LOOPBACK, + IFF_POINTOPOINT, + IFF_NOTRAILERS, + IFF_RUNNING, + IFF_NOARP, + IFF_PROMISC, + IFF_ALLMULTI, + IFF_SLAVE, + IFF_MASTER, + IFF_MULTICAST, +#ifdef HAVE_DYNAMIC + IFF_DYNAMIC +#endif + 0 +}; + +static void ife_print(struct interface *ptr) +{ + struct aftype *ap; + const struct hwtype *hw; + int hf; + int can_compress = 0; + +#if HAVE_AFIPX + static struct aftype *ipxtype = NULL; +#endif +#if HAVE_AFECONET + static struct aftype *ectype = NULL; +#endif +#if HAVE_AFATALK + static struct aftype *ddptype = NULL; +#endif +#if HAVE_AFINET6 + FILE *f; + char addr6[40], devname[20]; + struct sockaddr_in6 sap; + int plen, scope, dad_status, if_idx; + char addr6p[8][5]; +#endif + + ap = get_afntype(ptr->addr.sa_family); + if (ap == NULL) + ap = get_afntype(0); + + hf = ptr->type; + + if (hf == ARPHRD_CSLIP || hf == ARPHRD_CSLIP6) + can_compress = 1; + + hw = get_hwntype(hf); + if (hw == NULL) + hw = get_hwntype(-1); + + printf(_("%-9.9s Link encap:%s "), ptr->name, _(hw->title)); + /* For some hardware types (eg Ash, ATM) we don't print the + hardware address if it's null. */ + if (hw->print != NULL && (!(hw_null_address(hw, ptr->hwaddr) && + hw->suppress_null_addr))) + printf(_("HWaddr %s "), hw->print(ptr->hwaddr)); +#ifdef IFF_PORTSEL + if (ptr->flags & IFF_PORTSEL) { + printf(_("Media:%s"), if_port_text[ptr->map.port] /* [0] */); + if (ptr->flags & IFF_AUTOMEDIA) + printf(_("(auto)")); + } +#endif + printf("\n"); + +#if HAVE_AFINET + if (ptr->has_ip) { + printf(_(" %s addr:%s "), ap->name, + ap->sprint(&ptr->addr, 1)); + if (ptr->flags & IFF_POINTOPOINT) { + printf(_(" P-t-P:%s "), ap->sprint(&ptr->dstaddr, 1)); + } + if (ptr->flags & IFF_BROADCAST) { + printf(_(" Bcast:%s "), ap->sprint(&ptr->broadaddr, 1)); + } + printf(_(" Mask:%s\n"), ap->sprint(&ptr->netmask, 1)); + } +#endif + +#if HAVE_AFINET6 + +#define IPV6_ADDR_ANY 0x0000U + +#define IPV6_ADDR_UNICAST 0x0001U +#define IPV6_ADDR_MULTICAST 0x0002U +#define IPV6_ADDR_ANYCAST 0x0004U + +#define IPV6_ADDR_LOOPBACK 0x0010U +#define IPV6_ADDR_LINKLOCAL 0x0020U +#define IPV6_ADDR_SITELOCAL 0x0040U + +#define IPV6_ADDR_COMPATv4 0x0080U + +#define IPV6_ADDR_SCOPE_MASK 0x00f0U + +#define IPV6_ADDR_MAPPED 0x1000U +#define IPV6_ADDR_RESERVED 0x2000U /* reserved address space */ + + if ((f = fopen(_PATH_PROCNET_IFINET6, "r")) != NULL) { + while (fscanf + (f, "%4s%4s%4s%4s%4s%4s%4s%4s %02x %02x %02x %02x %20s\n", + addr6p[0], addr6p[1], addr6p[2], addr6p[3], addr6p[4], + addr6p[5], addr6p[6], addr6p[7], &if_idx, &plen, &scope, + &dad_status, devname) != EOF) { + if (!strcmp(devname, ptr->name)) { + sprintf(addr6, "%s:%s:%s:%s:%s:%s:%s:%s", + addr6p[0], addr6p[1], addr6p[2], addr6p[3], + addr6p[4], addr6p[5], addr6p[6], addr6p[7]); + inet_pton(AF_INET6, addr6, + (struct sockaddr *) &sap.sin6_addr); + sap.sin6_family = AF_INET6; + printf(_(" inet6 addr: %s/%d"), + inet6_aftype.sprint((struct sockaddr *) &sap, 1), + plen); + printf(_(" Scope:")); + switch (scope & IPV6_ADDR_SCOPE_MASK) { + case 0: + printf(_("Global")); + break; + case IPV6_ADDR_LINKLOCAL: + printf(_("Link")); + break; + case IPV6_ADDR_SITELOCAL: + printf(_("Site")); + break; + case IPV6_ADDR_COMPATv4: + printf(_("Compat")); + break; + case IPV6_ADDR_LOOPBACK: + printf(_("Host")); + break; + default: + printf(_("Unknown")); + } + printf("\n"); + } + } + fclose(f); + } +#endif + +#if HAVE_AFIPX + if (ipxtype == NULL) + ipxtype = get_afntype(AF_IPX); + + if (ipxtype != NULL) { + if (ptr->has_ipx_bb) + printf(_(" IPX/Ethernet II addr:%s\n"), + ipxtype->sprint(&ptr->ipxaddr_bb, 1)); + if (ptr->has_ipx_sn) + printf(_(" IPX/Ethernet SNAP addr:%s\n"), + ipxtype->sprint(&ptr->ipxaddr_sn, 1)); + if (ptr->has_ipx_e2) + printf(_(" IPX/Ethernet 802.2 addr:%s\n"), + ipxtype->sprint(&ptr->ipxaddr_e2, 1)); + if (ptr->has_ipx_e3) + printf(_(" IPX/Ethernet 802.3 addr:%s\n"), + ipxtype->sprint(&ptr->ipxaddr_e3, 1)); + } +#endif + +#if HAVE_AFATALK + if (ddptype == NULL) + ddptype = get_afntype(AF_APPLETALK); + if (ddptype != NULL) { + if (ptr->has_ddp) + printf(_(" EtherTalk Phase 2 addr:%s\n"), + ddptype->sprint(&ptr->ddpaddr, 1)); + } +#endif + +#if HAVE_AFECONET + if (ectype == NULL) + ectype = get_afntype(AF_ECONET); + if (ectype != NULL) { + if (ptr->has_econet) + printf(_(" econet addr:%s\n"), + ectype->sprint(&ptr->ecaddr, 1)); + } +#endif + + printf(" "); + /* DONT FORGET TO ADD THE FLAGS IN ife_print_short, too */ + + if (ptr->flags == 0) { + printf(_("[NO FLAGS] ")); + } else { + int i = 0; + do { + if (ptr->flags & ife_print_flags_mask[i]) { + printf(_(ife_print_flags_strs[i])); + } + } while (ife_print_flags_mask[++i]); + } + + /* DONT FORGET TO ADD THE FLAGS IN ife_print_short */ + printf(_(" MTU:%d Metric:%d"), ptr->mtu, ptr->metric ? ptr->metric : 1); +#ifdef SIOCSKEEPALIVE + if (ptr->outfill || ptr->keepalive) + printf(_(" Outfill:%d Keepalive:%d"), ptr->outfill, ptr->keepalive); +#endif + printf("\n"); + + /* If needed, display the interface statistics. */ + + if (ptr->statistics_valid) { + /* XXX: statistics are currently only printed for the primary address, + * not for the aliases, although strictly speaking they're shared + * by all addresses. + */ + printf(" "); + + printf(_("RX packets:%Lu errors:%lu dropped:%lu overruns:%lu frame:%lu\n"), + ptr->stats.rx_packets, ptr->stats.rx_errors, + ptr->stats.rx_dropped, ptr->stats.rx_fifo_errors, + ptr->stats.rx_frame_errors); + if (can_compress) + printf(_(" compressed:%lu\n"), + ptr->stats.rx_compressed); + printf(" "); + printf(_("TX packets:%Lu errors:%lu dropped:%lu overruns:%lu carrier:%lu\n"), + ptr->stats.tx_packets, ptr->stats.tx_errors, + ptr->stats.tx_dropped, ptr->stats.tx_fifo_errors, + ptr->stats.tx_carrier_errors); + printf(_(" collisions:%lu "), ptr->stats.collisions); + if (can_compress) + printf(_("compressed:%lu "), ptr->stats.tx_compressed); + if (ptr->tx_queue_len != -1) + printf(_("txqueuelen:%d "), ptr->tx_queue_len); + printf("\n R"); + print_bytes_scaled(ptr->stats.rx_bytes, " T"); + print_bytes_scaled(ptr->stats.tx_bytes, "\n"); + + } + + if ((ptr->map.irq || ptr->map.mem_start || ptr->map.dma || + ptr->map.base_addr)) { + printf(" "); + if (ptr->map.irq) + printf(_("Interrupt:%d "), ptr->map.irq); + if (ptr->map.base_addr >= 0x100) /* Only print devices using it for + I/O maps */ + printf(_("Base address:0x%lx "), + (unsigned long) ptr->map.base_addr); + if (ptr->map.mem_start) { + printf(_("Memory:%lx-%lx "), ptr->map.mem_start, + ptr->map.mem_end); + } + if (ptr->map.dma) + printf(_("DMA chan:%x "), ptr->map.dma); + printf("\n"); + } + printf("\n"); +} + + +static int do_if_print(struct interface *ife, void *cookie) +{ + int *opt_a = (int *) cookie; + int res; + + res = do_if_fetch(ife); + if (res >= 0) { + if ((ife->flags & IFF_UP) || *opt_a) + ife_print(ife); + } + return res; +} + +static struct interface *lookup_interface(char *name) +{ + struct interface *ife = NULL; + + if (if_readlist_proc(name) < 0) + return NULL; + ife = add_interface(name); + return ife; +} + +/* for ipv4 add/del modes */ +static int if_print(char *ifname) +{ + int res; + + if (!ifname) { + res = for_all_interfaces(do_if_print, &interface_opt_a); + } else { + struct interface *ife; + + ife = lookup_interface(ifname); + res = do_if_fetch(ife); + if (res >= 0) + ife_print(ife); + } + return res; +} + +int display_interfaces(char *ifname) +{ + int status; + + /* Create a channel to the NET kernel. */ + if ((skfd = sockets_open(0)) < 0) { + bb_perror_msg_and_die("socket"); + } + + /* Do we have to show the current setup? */ + status = if_print(ifname); +#ifdef CONFIG_FEATURE_CLEAN_UP + sockets_close(); +#endif + exit(status < 0); +} -- cgit v1.2.3