/* vi: set sw=4 ts=4: */ /* * stolen from net-tools-1.59 and stripped down for busybox by * Erik Andersen * * Heavily modified by Manuel Novoa III Mar 12, 2001 * * 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. * * * Author: Fred N. van Kempen, * and others. Copyright 1993 MicroWalt Corporation * * Licensed under GPLv2 or later, see file LICENSE in this tarball for details. * * 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) */ #include #include #include "inet_common.h" #include "libbb.h" #if ENABLE_FEATURE_IPV6 # define HAVE_AFINET6 1 #else # undef HAVE_AFINET6 #endif #define _PATH_PROCNET_DEV "/proc/net/dev" #define _PATH_PROCNET_IFINET6 "/proc/net/if_inet6" #ifdef 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 */ /* 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 /* Display an Internet socket address. */ static const char *INET_sprint(struct sockaddr *sap, int numeric) { static char *buff; free(buff); if (sap->sa_family == 0xFFFF || sap->sa_family == 0) return "[NONE SET]"; buff = INET_rresolve((struct sockaddr_in *) sap, numeric, 0xffffff00); return buff; } #ifdef UNUSED_AND_BUGGY static int INET_getsock(char *bufp, struct sockaddr *sap) { char *sp = bufp, *bp; unsigned int i; unsigned val; struct sockaddr_in *sock_in; sock_in = (struct sockaddr_in *) sap; sock_in->sin_family = AF_INET; sock_in->sin_port = 0; val = 0; bp = (char *) &val; for (i = 0; i < sizeof(sock_in->sin_addr.s_addr); i++) { *sp = toupper(*sp); if ((unsigned)(*sp - 'A') <= 5) bp[i] |= (int) (*sp - ('A' - 10)); else if (isdigit(*sp)) bp[i] |= (int) (*sp - '0'); else return -1; bp[i] <<= 4; sp++; *sp = toupper(*sp); if ((unsigned)(*sp - 'A') <= 5) bp[i] |= (int) (*sp - ('A' - 10)); else if (isdigit(*sp)) bp[i] |= (int) (*sp - '0'); else return -1; sp++; } sock_in->sin_addr.s_addr = htonl(val); return (sp - bufp); } #endif static int INET_input(/*int type,*/ const char *bufp, struct sockaddr *sap) { return INET_resolve(bufp, (struct sockaddr_in *) sap, 0); /* 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 const struct aftype inet_aftype = { .name = "inet", .title = "DARPA Internet", .af = AF_INET, .alen = 4, .sprint = INET_sprint, .input = INET_input, }; #ifdef HAVE_AFINET6 /* Display an Internet socket address. */ /* dirty! struct sockaddr usually doesn't suffer for inet6 addresses, fst. */ static const char *INET6_sprint(struct sockaddr *sap, int numeric) { static char *buff; free(buff); if (sap->sa_family == 0xFFFF || sap->sa_family == 0) return "[NONE SET]"; buff = INET6_rresolve((struct sockaddr_in6 *) sap, numeric); return buff; } #ifdef 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; /* ?;) */ } #endif static int INET6_input(/*int type,*/ const char *bufp, struct sockaddr *sap) { return INET6_resolve(bufp, (struct sockaddr_in6 *) sap); /* switch (type) { case 1: return (INET6_getsock(bufp, sap)); default: return (INET6_resolve(bufp, (struct sockaddr_in6 *) sap)); } */ } static const struct aftype inet6_aftype = { .name = "inet6", .title = "IPv6", .af = AF_INET6, .alen = sizeof(struct in6_addr), .sprint = INET6_sprint, .input = INET6_input, }; #endif /* HAVE_AFINET6 */ /* Display an UNSPEC address. */ static char *UNSPEC_print(unsigned char *ptr) { static char *buff; char *pos; unsigned int i; if (!buff) buff = xmalloc(sizeof(struct sockaddr) * 3 + 1); 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 const char *UNSPEC_sprint(struct sockaddr *sap, int numeric ATTRIBUTE_UNUSED) { if (sap->sa_family == 0xFFFF || sap->sa_family == 0) return "[NONE SET]"; return UNSPEC_print((unsigned char *)sap->sa_data); } static const struct aftype unspec_aftype = { .name = "unspec", .title = "UNSPEC", .af = AF_UNSPEC, .alen = 0, .print = UNSPEC_print, .sprint = UNSPEC_sprint, }; static const struct aftype *const aftypes[] = { &inet_aftype, #ifdef HAVE_AFINET6 &inet6_aftype, #endif &unspec_aftype, NULL }; /* Check our protocol family table for this family. */ const struct aftype *get_aftype(const char *name) { const struct aftype *const *afp; afp = aftypes; while (*afp != NULL) { if (!strcmp((*afp)->name, name)) return (*afp); afp++; } return NULL; } /* Check our protocol family table for this family. */ static const struct aftype *get_afntype(int af) { const struct aftype *const *afp; afp = aftypes; while (*afp != NULL) { if ((*afp)->af == af) return *afp; afp++; } return NULL; } 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 */ int has_ip; 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 */ }; smallint interface_opt_a; /* show all interfaces */ static struct interface *int_list, *int_last; #if 0 /* like strcmp(), but knows about numbers */ except that the freshly added calls to xatoul() brf on ethernet aliases with uClibc with e.g.: ife->name='lo' name='eth0:1' 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 xatoul(a_ptr) > xatoul(b_ptr) ? 1 : -1; } return *a - *b; } #endif static struct interface *add_interface(char *name) { struct interface *ife, **nextp, *new; for (ife = int_last; ife; ife = ife->prev) { int n = /*n*/strcmp(ife->name, name); if (n == 0) return ife; if (n < 0) break; } new = xzalloc(sizeof(*new)); 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 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; while (isspace(p[namestart])) namestart++; nameend = namestart; while (p[nameend] && p[nameend] != ':' && !isspace(p[nameend])) nameend++; if (p[nameend] == ':') { 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 { /* trailing ':' 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 *const ss_fmt[] = { */ /* "%lln%llu%lu%lu%lu%lu%ln%ln%lln%llu%lu%lu%lu%lu%lu", */ /* "%llu%llu%lu%lu%lu%lu%ln%ln%llu%llu%lu%lu%lu%lu%lu", */ /* "%llu%llu%lu%lu%lu%lu%lu%lu%llu%llu%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%llu%u%u%u%u%n%n%n%llu%u%u%u%u%u", "%llu%llu%u%u%u%u%n%n%llu%llu%u%u%u%u%u", "%llu%llu%u%u%u%u%u%u%llu%llu%u%u%u%u%u%u" }; #else static const char *const ss_fmt[] = { "%n%llu%lu%lu%lu%lu%n%n%n%llu%lu%lu%lu%lu%lu", "%llu%llu%lu%lu%lu%lu%n%n%llu%llu%lu%lu%lu%lu%lu", "%llu%llu%lu%lu%lu%lu%lu%lu%llu%llu%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_readconf(void) { int numreqs = 30; struct ifconf ifc; struct ifreq *ifr; int n, err = -1; int skfd; ifc.ifc_buf = NULL; /* SIOCGIFCONF currently seems to only work properly on AF_INET sockets (as of 2.1.128) */ skfd = socket(AF_INET, SOCK_DGRAM, 0); if (skfd < 0) { bb_perror_msg("error: no inet socket available"); return -1; } for (;;) { ifc.ifc_len = sizeof(struct ifreq) * numreqs; ifc.ifc_buf = xrealloc(ifc.ifc_buf, ifc.ifc_len); if (ioctl_or_warn(skfd, SIOCGIFCONF, &ifc) < 0) { 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: close(skfd); free(ifc.ifc_buf); return err; } static int if_readlist_proc(char *target) { static smallint 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_or_warn(_PATH_PROCNET_DEV, "r"); if (!fh) { 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)) { bb_perror_msg(_PATH_PROCNET_DEV); err = -1; proc_read = 0; } fclose(fh); return err; } static int if_readlist(void) { int err = if_readlist_proc(NULL); /* Needed in order to get ethN:M aliases */ if (!err) err = if_readconf(); return err; } /* Fetch the interface configuration from the kernel. */ static int if_fetch(struct interface *ife) { struct ifreq ifr; char *ifname = ife->name; int skfd; skfd = xsocket(AF_INET, SOCK_DGRAM, 0); strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name)); if (ioctl(skfd, SIOCGIFFLAGS, &ifr) < 0) { close(skfd); return -1; } ife->flags = ifr.ifr_flags; strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name)); memset(ife->hwaddr, 0, 32); if (ioctl(skfd, SIOCGIFHWADDR, &ifr) >= 0) memcpy(ife->hwaddr, ifr.ifr_hwaddr.sa_data, 8); ife->type = ifr.ifr_hwaddr.sa_family; strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name)); ife->metric = 0; if (ioctl(skfd, SIOCGIFMETRIC, &ifr) >= 0) ife->metric = ifr.ifr_metric; strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name)); ife->mtu = 0; if (ioctl(skfd, SIOCGIFMTU, &ifr) >= 0) ife->mtu = ifr.ifr_mtu; memset(&ife->map, 0, sizeof(struct ifmap)); #ifdef SIOCGIFMAP strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name)); if (ioctl(skfd, SIOCGIFMAP, &ifr) == 0) ife->map = ifr.ifr_map; #endif #ifdef HAVE_TXQUEUELEN strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name)); ife->tx_queue_len = -1; /* unknown value */ if (ioctl(skfd, SIOCGIFTXQLEN, &ifr) >= 0) ife->tx_queue_len = ifr.ifr_qlen; #else ife->tx_queue_len = -1; /* unknown value */ #endif strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name)); ifr.ifr_addr.sa_family = AF_INET; memset(&ife->addr, 0, sizeof(struct sockaddr)); if (ioctl(skfd, SIOCGIFADDR, &ifr) == 0) { ife->has_ip = 1; ife->addr = ifr.ifr_addr; strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name)); memset(&ife->dstaddr, 0, sizeof(struct sockaddr)); if (ioctl(skfd, SIOCGIFDSTADDR, &ifr) >= 0) ife->dstaddr = ifr.ifr_dstaddr; strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name)); memset(&ife->broadaddr, 0, sizeof(struct sockaddr)); if (ioctl(skfd, SIOCGIFBRDADDR, &ifr) >= 0) ife->broadaddr = ifr.ifr_broadaddr; strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name)); memset(&ife->netmask, 0, sizeof(struct sockaddr)); if (ioctl(skfd, SIOCGIFNETMASK, &ifr) >= 0) ife->netmask = ifr.ifr_netmask; } close(skfd); return 0; } static int do_if_fetch(struct interface *ife) { if (if_fetch(ife) < 0) { const 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; } static const struct hwtype unspec_hwtype = { .name = "unspec", .title = "UNSPEC", .type = -1, .print = UNSPEC_print }; static const struct hwtype loop_hwtype = { .name = "loop", .title = "Local Loopback", .type = ARPHRD_LOOPBACK }; #include #if (defined(__GLIBC__) && __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; free(buff); buff = xasprintf("%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; } static int in_ether(const char *bufp, struct sockaddr *sap); static const struct hwtype ether_hwtype = { .name = "ether", .title = "Ethernet", .type = ARPHRD_ETHER, .alen = ETH_ALEN, .print = pr_ether, .input = in_ether }; static unsigned hexchar2int(char c) { if (isdigit(c)) return c - '0'; c &= ~0x20; /* a -> A */ if ((unsigned)(c - 'A') <= 5) return c - ('A' - 10); return ~0U; } /* Input an Ethernet address and convert to binary. */ static int in_ether(const char *bufp, struct sockaddr *sap) { unsigned char *ptr; char c; int i; unsigned val; sap->sa_family = ether_hwtype.type; ptr = (unsigned char*) sap->sa_data; i = 0; while ((*bufp != '\0') && (i < ETH_ALEN)) { val = hexchar2int(*bufp++) * 0x10; if (val > 0xff) { errno = EINVAL; return -1; } c = *bufp; if (c == ':' || c == 0) val >>= 4; else { val |= hexchar2int(c); if (val > 0xff) { errno = EINVAL; return -1; } } if (c != 0) bufp++; *ptr++ = (unsigned char) val; i++; /* We might get a semicolon here - not required. */ if (*bufp == ':') { bufp++; } } return 0; } #include static const struct hwtype ppp_hwtype = { .name = "ppp", .title = "Point-to-Point Protocol", .type = ARPHRD_PPP }; #if ENABLE_FEATURE_IPV6 static const struct hwtype sit_hwtype = { .name = "sit", .title = "IPv6-in-IPv4", .type = ARPHRD_SIT, .print = UNSPEC_print, .suppress_null_addr = 1 }; #endif static const struct hwtype *const hwtypes[] = { &loop_hwtype, ðer_hwtype, &ppp_hwtype, &unspec_hwtype, #if ENABLE_FEATURE_IPV6 &sit_hwtype, #endif NULL }; #ifdef IFF_PORTSEL static const char *const if_port_text[] = { /* Keep in step with */ "unknown", "10base2", "10baseT", "AUI", "100baseT", "100baseTX", "100baseFX", NULL }; #endif /* Check our hardware type table for this type. */ const struct hwtype *get_hwtype(const char *name) { const struct hwtype *const *hwp; hwp = hwtypes; while (*hwp != NULL) { if (!strcmp((*hwp)->name, name)) return (*hwp); hwp++; } return NULL; } /* Check our hardware type table for this type. */ const struct hwtype *get_hwntype(int type) { const struct hwtype *const *hwp; 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[] ALIGN1 = "\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 (int_part >= 1024) { frac_part = ((((unsigned int) int_part) & (1024-1)) * 10) / 1024; int_part /= 1024; ext += 3; /* KiB, MiB, GiB, TiB */ } --i; } while (i); printf("X bytes:%llu (%llu.%u %sB)%s", ull, int_part, frac_part, ext, end); } static void ife_print(struct interface *ptr) { const struct aftype *ap; const struct hwtype *hw; int hf; int can_compress = 0; #ifdef 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((unsigned char *)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 bb_putchar('\n'); 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)); } #ifdef 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 */ f = fopen(_PATH_PROCNET_IFINET6, "r"); if (f != NULL) { while (fscanf (f, "%4s%4s%4s%4s%4s%4s%4s%4s %08x %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_sprint((struct sockaddr *) &sap, 1), plen); printf(" Scope:"); switch (scope & IPV6_ADDR_SCOPE_MASK) { case 0: puts("Global"); break; case IPV6_ADDR_LINKLOCAL: puts("Link"); break; case IPV6_ADDR_SITELOCAL: puts("Site"); break; case IPV6_ADDR_COMPATv4: puts("Compat"); break; case IPV6_ADDR_LOOPBACK: puts("Host"); break; default: puts("Unknown"); } } } fclose(f); } #endif printf(" "); /* DONT FORGET TO ADD THE FLAGS IN ife_print_short, too */ if (ptr->flags == 0) { printf("[NO FLAGS] "); } else { static const char ife_print_flags_strs[] ALIGN1 = "UP\0" "BROADCAST\0" "DEBUG\0" "LOOPBACK\0" "POINTOPOINT\0" "NOTRAILERS\0" "RUNNING\0" "NOARP\0" "PROMISC\0" "ALLMULTI\0" "SLAVE\0" "MASTER\0" "MULTICAST\0" #ifdef HAVE_DYNAMIC "DYNAMIC\0" #endif ; static const unsigned short ife_print_flags_mask[] ALIGN2 = { 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 }; const unsigned short *mask = ife_print_flags_mask; const char *str = ife_print_flags_strs; do { if (ptr->flags & *mask) { printf("%s ", str); } mask++; str += strlen(str) + 1; } while (*str); } /* 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 bb_putchar('\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:%llu 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:%llu 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); bb_putchar('\n'); } bb_putchar('\n'); } static int do_if_print(struct interface *ife) /*, int *opt_a)*/ { int res; res = do_if_fetch(ife); if (res >= 0) { if ((ife->flags & IFF_UP) || interface_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; } #ifdef UNUSED 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; } #endif /* for ipv4 add/del modes */ static int if_print(char *ifname) { struct interface *ife; int res; if (!ifname) { /*res = for_all_interfaces(do_if_print, &interface_opt_a);*/ if (!int_list && (if_readlist() < 0)) return -1; for (ife = int_list; ife; ife = ife->next) { int err = do_if_print(ife); /*, &interface_opt_a);*/ if (err) return err; } return 0; } ife = lookup_interface(ifname); res = do_if_fetch(ife); if (res >= 0) ife_print(ife); return res; } int display_interfaces(char *ifname) { int status; status = if_print(ifname); return (status < 0); /* status < 0 == 1 -- error */ }