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-rw-r--r--networking/interface.c2093
1 files changed, 2093 insertions, 0 deletions
diff --git a/networking/interface.c b/networking/interface.c
new file mode 100644
index 0000000..ce7d67d
--- /dev/null
+++ b/networking/interface.c
@@ -0,0 +1,2093 @@
+/*
+ * stolen from net-tools-1.59 and stripped down for busybox by
+ * Erik Andersen <andersen@codepoet.org>
+ *
+ * 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, <waltje@uwalt.nl.mugnet.org>
+ * 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 <mrs.brisby@nimh.org>
+ *
+ * {1.34} - 19980630 - Arnaldo Carvalho de Melo <acme@conectiva.com.br>
+ * - 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 <stdio.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <ctype.h>
+#include <sys/ioctl.h>
+#include <sys/types.h>
+#include <net/if.h>
+#include <net/if_arp.h>
+#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 <net/if_slip.h>
+#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 <netipx/ipx.h>
+#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 <name>[:<alias>] from nul-terminated p where p matches
+ <name>[:<alias>]: 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)<IFNAMSIZ) {
+ memcpy(name,&p[namestart],nameend-namestart);
+ name[nameend-namestart]='\0';
+ p=&p[nameend];
+ } else {
+ /* Interface name too large */
+ name[0]='\0';
+ }
+ } else {
+ /* first ':' not found - return empty */
+ name[0]='\0';
+ }
+ return p + 1;
+}
+
+/* If scanf supports size qualifiers for %n conversions, then we can
+ * use a modified fmt that simply stores the position in the fields
+ * having no associated fields in the proc string. Of course, we need
+ * to zero them again when we're done. But that is smaller than the
+ * old approach of multiple scanf occurrences with large numbers of
+ * args. */
+
+/* static const char *ss_fmt[] = { */
+/* "%Ln%Lu%lu%lu%lu%lu%ln%ln%Ln%Lu%lu%lu%lu%lu%lu", */
+/* "%Lu%Lu%lu%lu%lu%lu%ln%ln%Lu%Lu%lu%lu%lu%lu%lu", */
+/* "%Lu%Lu%lu%lu%lu%lu%lu%lu%Lu%Lu%lu%lu%lu%lu%lu%lu" */
+/* }; */
+
+ /* Lie about the size of the int pointed to for %n. */
+#if INT_MAX == LONG_MAX
+static const char * const ss_fmt[] = {
+ "%n%Lu%u%u%u%u%n%n%n%Lu%u%u%u%u%u",
+ "%Lu%Lu%u%u%u%u%n%n%Lu%Lu%u%u%u%u%u",
+ "%Lu%Lu%u%u%u%u%u%u%Lu%Lu%u%u%u%u%u%u"
+};
+#else
+static const char * const ss_fmt[] = {
+ "%n%Lu%lu%lu%lu%lu%n%n%n%Lu%lu%lu%lu%lu%lu",
+ "%Lu%Lu%lu%lu%lu%lu%n%n%Lu%Lu%lu%lu%lu%lu%lu",
+ "%Lu%Lu%lu%lu%lu%lu%lu%lu%Lu%Lu%lu%lu%lu%lu%lu%lu"
+};
+
+#endif
+
+static void get_dev_fields(char *bp, struct interface *ife, int procnetdev_vsn)
+{
+ memset(&ife->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 <net/if_arp.h>
+
+#if (__GLIBC__ >=2 && __GLIBC_MINOR >= 1) || defined(_NEWLIB_VERSION)
+#include <net/ethernet.h>
+#else
+#include <linux/if_ether.h>
+#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 <net/if_arp.h>
+
+#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
+ &ether_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 <linux/netdevice.h> */
+ {"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 <linux/netdevice.h> */
+ "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);
+}
generated by cgit v1.1 at 2024-12-24 18:09:31 +0000