/* * 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 1.1.1.4 2003/10/14 08:09:38 sparq 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) * 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. */ /* #define KEEP_UNUSED */ #include "busybox.h" /* * * Protocol Families. * */ #define HAVE_AFINET 1 #undef HAVE_AFINET6 #undef HAVE_AFIPX #undef HAVE_AFATALK #undef HAVE_AFNETROM #undef HAVE_AFX25 #undef HAVE_AFECONET /* * * Device Hardware types. * */ #define HAVE_HWETHER 1 #define HAVE_HWPPP 1 #undef HAVE_HWSLIP #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #define _(x) x #define _PATH_PROCNET_DEV "/proc/net/dev" #define new(p) ((p) = xcalloc(1,sizeof(*(p)))) #define KRELEASE(maj,min,patch) ((maj) * 10000 + (min)*1000 + (patch)) static int procnetdev_vsn = 1; /* Ugh. But libc5 doesn't provide POSIX types. */ #include #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; __u32 ifr6_prefixlen; unsigned int ifr6_ifindex; }; #endif #endif /* HAVE_AFINET6 */ #if HAVE_AFIPX #if (__GLIBC__ > 2) || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 1) #include #else #include "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; }; static struct aftype *aftypes[]; #ifdef KEEP_UNUSED static int flag_unx; static int flag_ipx; static int flag_ax25; static int flag_ddp; static int flag_netrom; static int flag_inet; static int flag_inet6; static int flag_econet; static int flag_x25 = 0; static int flag_ash; static struct aftrans_t { char *alias; char *name; int *flag; } aftrans[] = { { "ax25", "ax25", &flag_ax25 }, { "ip", "inet", &flag_inet }, { "ip6", "inet6", &flag_inet6 }, { "ipx", "ipx", &flag_ipx }, { "appletalk", "ddp", &flag_ddp }, { "netrom", "netrom", &flag_netrom }, { "inet", "inet", &flag_inet }, { "inet6", "inet6", &flag_inet6 }, { "ddp", "ddp", &flag_ddp }, { "unix", "unix", &flag_unx }, { "tcpip", "inet", &flag_inet }, { "econet", "ec", &flag_econet }, { "x25", "x25", &flag_x25 }, { "ash", "ash", &flag_ash }, { 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 /* cache */ struct addr { struct sockaddr_in addr; char *name; int host; struct addr *next; }; static struct addr *INET_nn = NULL; /* addr-to-name cache */ #ifdef KEEP_UNUSED static int INET_resolve(char *name, struct sockaddr_in *sin, int hostfirst) { struct hostent *hp; struct netent *np; /* Grmpf. -FvK */ sin->sin_family = AF_INET; sin->sin_port = 0; /* Default is special, meaning 0.0.0.0. */ if (!strcmp(name, "default")) { sin->sin_addr.s_addr = INADDR_ANY; return (1); } /* Look to see if it's a dotted quad. */ if (inet_aton(name, &sin->sin_addr)) { return 0; } /* If we expect this to be a hostname, try hostname database first */ #ifdef DEBUG if (hostfirst) fprintf (stderr, "gethostbyname (%s)\n", name); #endif if (hostfirst && (hp = gethostbyname(name)) != (struct hostent *) NULL) { memcpy((char *) &sin->sin_addr, (char *) hp->h_addr_list[0], sizeof(struct in_addr)); return 0; } /* Try the NETWORKS database to see if this is a known network. */ #ifdef DEBUG fprintf (stderr, "getnetbyname (%s)\n", name); #endif if ((np = getnetbyname(name)) != (struct netent *) NULL) { sin->sin_addr.s_addr = htonl(np->n_net); return 1; } if (hostfirst) { /* Don't try again */ errno = h_errno; return -1; } #ifdef DEBUG res_init(); _res.options |= RES_DEBUG; #endif #ifdef DEBUG fprintf (stderr, "gethostbyname (%s)\n", name); #endif if ((hp = gethostbyname(name)) == (struct hostent *) NULL) { errno = h_errno; return -1; } memcpy((char *) &sin->sin_addr, (char *) hp->h_addr_list[0], sizeof(struct in_addr)); return 0; } #endif /* KEEP_UNUSED */ /* numeric: & 0x8000: default instead of *, * & 0x4000: host instead of net, * & 0x0fff: don't resolve */ static int INET_rresolve(char *name, size_t len, struct sockaddr_in *sin, int numeric, unsigned int netmask) { struct hostent *ent; struct netent *np; struct addr *pn; unsigned long ad, host_ad; int host = 0; /* Grmpf. -FvK */ if (sin->sin_family != AF_INET) { #ifdef DEBUG fprintf(stderr, _("rresolve: unsupport address family %d !\n"), sin->sin_family); #endif errno = EAFNOSUPPORT; return (-1); } ad = (unsigned long) sin->sin_addr.s_addr; #ifdef DEBUG fprintf (stderr, "rresolve: %08lx, mask %08x, num %08x \n", ad, netmask, numeric); #endif if (ad == INADDR_ANY) { if ((numeric & 0x0FFF) == 0) { if (numeric & 0x8000) safe_strncpy(name, "default", len); else safe_strncpy(name, "*", len); return (0); } } if (numeric & 0x0FFF) { safe_strncpy(name, inet_ntoa(sin->sin_addr), len); return (0); } if ((ad & (~netmask)) != 0 || (numeric & 0x4000)) host = 1; pn = INET_nn; while (pn != NULL) { if (pn->addr.sin_addr.s_addr == ad && pn->host == host) { safe_strncpy(name, pn->name, len); #ifdef DEBUG fprintf (stderr, "rresolve: found %s %08lx in cache\n", (host? "host": "net"), ad); #endif return (0); } pn = pn->next; } host_ad = ntohl(ad); np = NULL; ent = NULL; if (host) { #ifdef DEBUG fprintf (stderr, "gethostbyaddr (%08lx)\n", ad); #endif ent = gethostbyaddr((char *) &ad, 4, AF_INET); if (ent != NULL) safe_strncpy(name, ent->h_name, len); } else { #ifdef DEBUG fprintf (stderr, "getnetbyaddr (%08lx)\n", host_ad); #endif np = getnetbyaddr(host_ad, AF_INET); if (np != NULL) safe_strncpy(name, np->n_name, len); } if ((ent == NULL) && (np == NULL)) safe_strncpy(name, inet_ntoa(sin->sin_addr), len); pn = (struct addr *) xmalloc(sizeof(struct addr)); pn->addr = *sin; pn->next = INET_nn; pn->host = host; pn->name = (char *) xmalloc(strlen(name) + 1); strcpy(pn->name, name); INET_nn = pn; return (0); } #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 */ /* Display an UNSPEC address. */ static char *UNSPEC_print(unsigned char *ptr) { static char buff[64]; char *pos; unsigned int i; pos = buff; for (i = 0; i < sizeof(struct sockaddr); i++) { pos += sprintf(pos, "%02X-", (*ptr++ & 0377)); } buff[strlen(buff) - 1] = '\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 *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 = index(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)) { fprintf(stderr, _("Too much address family arguments.\n")); return (0); } if (paft->flag) (*paft->flag)++; if (afname[0]) strcat(afname, ","); strcat(afname, paft->name); break; } if (!paft->alias) { fprintf(stderr, _("Unknown address family `%s'.\n"), 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 **afp; #ifdef KEEP_UNUSED if (!sVafinit) afinit(); #endif /* KEEP_UNUSED */ afp = aftypes; while (*afp != NULL) { if (!strcmp((*afp)->name, name)) return (*afp); afp++; } if (index(name, ',')) fprintf(stderr, _("Please don't supply more than one address family.\n")); return (NULL); } #endif /* KEEP_UNUSED */ /* Check our protocol family table for this family. */ static struct aftype *get_afntype(int af) { struct aftype **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 **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 **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 **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) fprintf(stderr, _("No usable address families found.\n")); return sfd; } /* like strcmp(), but knows about numbers */ static int nstrcmp(const char *astr, const char *b) { const char *a = astr; while (*a == *b) { if (*a == '\0') return 0; a++; b++; } if (isdigit(*a)) { if (!isdigit(*b)) return -1; while (a > astr) { a--; if (!isdigit(*a)) { a++; break; } if (!isdigit(*b)) return -1; b--; } return atoi(a) > atoi(b) ? 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 skfd; /* SIOCGIFCONF currently seems to only work properly on AF_INET sockets (as of 2.1.128) */ skfd = get_socket_for_af(AF_INET); if (skfd < 0) { fprintf(stderr, _("warning: no inet socket available: %s\n"), strerror(errno)); /* Try to soldier on with whatever socket we can get hold of. */ skfd = sockets_open(0); if (skfd < 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(skfd, 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) { while (isspace(*p)) p++; while (*p) { if (isspace(*p)) break; if (*p == ':') { /* could be an alias */ char *dot = p, *dotname = name; *name++ = *p++; while (isdigit(*p)) *name++ = *p++; if (*p != ':') { /* it wasn't, backup */ p = dot; name = dotname; } if (*p == '\0') return NULL; p++; break; } *name++ = *p++; } *name++ = '\0'; return p; } static int get_dev_fields(char *bp, struct interface *ife) { switch (procnetdev_vsn) { case 3: sscanf(bp, "%Lu %Lu %lu %lu %lu %lu %lu %lu %Lu %Lu %lu %lu %lu %lu %lu %lu", &ife->stats.rx_bytes, &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, &ife->stats.rx_multicast, &ife->stats.tx_bytes, &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); break; case 2: sscanf(bp, "%Lu %Lu %lu %lu %lu %lu %Lu %Lu %lu %lu %lu %lu %lu", &ife->stats.rx_bytes, &ife->stats.rx_packets, &ife->stats.rx_errors, &ife->stats.rx_dropped, &ife->stats.rx_fifo_errors, &ife->stats.rx_frame_errors, &ife->stats.tx_bytes, &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.rx_multicast = 0; break; case 1: sscanf(bp, "%Lu %lu %lu %lu %lu %Lu %lu %lu %lu %lu %lu", &ife->stats.rx_packets, &ife->stats.rx_errors, &ife->stats.rx_dropped, &ife->stats.rx_fifo_errors, &ife->stats.rx_frame_errors, &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.rx_bytes = 0; ife->stats.tx_bytes = 0; ife->stats.rx_multicast = 0; break; } return 0; } static inline int procnetdev_version(char *buf) { if (strstr(buf, "compressed")) return 3; if (strstr(buf, "bytes")) return 2; return 1; } static int if_readlist_proc(char *target) { static int proc_read; FILE *fh; char buf[512]; struct interface *ife; int err; if (proc_read) return 0; if (!target) proc_read = 1; fh = fopen(_PATH_PROCNET_DEV, "r"); if (!fh) { fprintf(stderr, _("Warning: cannot open %s (%s). Limited output.\n"), _PATH_PROCNET_DEV, strerror(errno)); 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[IFNAMSIZ]; s = get_name(name, buf); ife = add_interface(name); get_dev_fields(s, ife); 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 strcpy(ifr.ifr_name, ifname); if (ioctl(skfd, SIOCGIFMAP, &ifr) < 0) memset(&ife->map, 0, sizeof(struct ifmap)); else memcpy(&ife->map, &ifr.ifr_map, sizeof(struct ifmap)); strcpy(ifr.ifr_name, ifname); if (ioctl(skfd, SIOCGIFMAP, &ifr) < 0) memset(&ife->map, 0, sizeof(struct ifmap)); else ife->map = ifr.ifr_map; #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); } fprintf(stderr, _("%s: error fetching interface information: %s\n"), 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; }; /* Display an UNSPEC address. */ static char *pr_unspec(unsigned char *ptr) { static char buff[64]; char *pos; unsigned int i; pos = buff; for (i = 0; i < sizeof(struct sockaddr); i++) { pos += sprintf(pos, "%02X-", (*ptr++ & 0377)); } buff[strlen(buff) - 1] = '\0'; return (buff); } static struct hwtype unspec_hwtype = { "unspec", "UNSPEC", -1, 0, pr_unspec, NULL, NULL }; static struct hwtype loop_hwtype = { "loop", "Local Loopback", ARPHRD_LOOPBACK, 0, NULL, NULL, NULL }; #if HAVE_HWETHER #include #include static struct hwtype ether_hwtype; /* 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 fprintf(stderr, _("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 fprintf(stderr, _("in_ether(%s): invalid ether address!\n"), 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 == ':') { if (i == ETH_ALEN) { #ifdef DEBUG fprintf(stderr, _("in_ether(%s): trailing : ignored!\n"), orig) #endif ; /* nothing */ } bufp++; } } /* That's it. Any trailing junk? */ if ((i == ETH_ALEN) && (*bufp != '\0')) { #ifdef DEBUG fprintf(stderr, _("in_ether(%s): trailing junk!\n"), orig); errno = EINVAL; return (-1); #endif } #ifdef DEBUG fprintf(stderr, "in_ether(%s): %s\n", orig, pr_ether(sap->sa_data)); #endif return (0); } #endif /* KEEP_UNUSED */ static 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) { fprintf(stderr, _("You cannot start PPP with this program.\n")); return -1; } #endif /* KEEP_UNUSED */ static struct hwtype ppp_hwtype = { "ppp", "Point-Point Protocol", ARPHRD_PPP, 0, NULL, NULL, NULL /* UNUSED do_ppp */, 0 }; #endif /* HAVE_PPP */ static struct hwtype *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 static const char *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}, }; #endif /* Check our hardware type table for this type. */ static struct hwtype *get_hwntype(int type) { struct hwtype **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(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\0k\0M"; static void print_bytes_scaled(unsigned long long ull, const char *end) { unsigned long long int_part; unsigned long frac_part; const char *ext; int i; frac_part = 0; ext = TRext; int_part = ull; for (i=0 ; i<2 ; i++) { if (int_part >= 1024) { frac_part = ((int_part % 1024) * 10) / 1024; int_part /= 1024; ext += 2; /* Kb, Mb */ } } printf("X bytes:%Lu (%Lu.%lu %sb)%s", ull, int_part, frac_part, ext, end); } static void ife_print(struct interface *ptr) { struct aftype *ap; 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; extern struct aftype inet6_aftype; 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 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]); inet6_aftype.input(1, addr6, (struct sockaddr *) &sap); printf(_(" inet6 addr: %s/%d"), inet6_aftype.sprint((struct sockaddr *) &sap, 1), plen); printf(_(" Scope:")); switch (scope) { 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] ")); if (ptr->flags & IFF_UP) printf(_("UP ")); if (ptr->flags & IFF_BROADCAST) printf(_("BROADCAST ")); if (ptr->flags & IFF_DEBUG) printf(_("DEBUG ")); if (ptr->flags & IFF_LOOPBACK) printf(_("LOOPBACK ")); if (ptr->flags & IFF_POINTOPOINT) printf(_("POINTOPOINT ")); if (ptr->flags & IFF_NOTRAILERS) printf(_("NOTRAILERS ")); if (ptr->flags & IFF_RUNNING) printf(_("RUNNING ")); if (ptr->flags & IFF_NOARP) printf(_("NOARP ")); if (ptr->flags & IFF_PROMISC) printf(_("PROMISC ")); if (ptr->flags & IFF_ALLMULTI) printf(_("ALLMULTI ")); if (ptr->flags & IFF_SLAVE) printf(_("SLAVE ")); if (ptr->flags & IFF_MASTER) printf(_("MASTER ")); if (ptr->flags & IFF_MULTICAST) printf(_("MULTICAST ")); #ifdef HAVE_DYNAMIC if (ptr->flags & IFF_DYNAMIC) printf(_("DYNAMIC ")); #endif /* 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) { 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%x "), 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) { perror_msg_and_die("socket"); } /* Do we have to show the current setup? */ status = if_print(ifname); close(skfd); exit(status < 0); }