#include "nixio.h"
#include <sys/types.h>
+#include <sys/param.h>
#include <errno.h>
#include <string.h>
+#ifdef __linux__
+#include <linux/netdevice.h>
+
+/* struct net_device_stats is buggy on amd64, redefine it */
+struct nixio__nds {
+ uint32_t rx_packets;
+ uint32_t tx_packets;
+ uint32_t rx_bytes;
+ uint32_t tx_bytes;
+ uint32_t rx_errors;
+ uint32_t tx_errors;
+ uint32_t rx_dropped;
+ uint32_t tx_dropped;
+ uint32_t multicast;
+ uint32_t collisions;
+
+ uint32_t rx_length_errors;
+ uint32_t rx_over_errors;
+ uint32_t rx_crc_errors;
+ uint32_t rx_frame_errors;
+ uint32_t rx_fifo_errors;
+ uint32_t rx_missed_errors;
+
+ uint32_t tx_aborted_errors;
+ uint32_t tx_carrier_errors;
+ uint32_t tx_fifo_errors;
+ uint32_t tx_heartbeat_errors;
+ uint32_t tx_window_errors;
+
+ uint32_t rx_compressed;
+ uint32_t tx_compressed;
+};
+#endif
+
#ifndef NI_MAXHOST
#define NI_MAXHOST 1025
#endif
struct sockaddr_in6 *inet6addr = (struct sockaddr_in6*)saddr;
addr->port = ntohs(inet6addr->sin6_port);
baddr = &inet6addr->sin6_addr;
+#ifdef AF_PACKET
+ } else if (saddr->sa_family == AF_PACKET) {
+ struct sockaddr_ll *etheradddr = (struct sockaddr_ll*)saddr;
+ addr->prefix = etheradddr->sll_hatype;
+ addr->port = etheradddr->sll_ifindex;
+ char *c = addr->host;
+ for (size_t i = 0; i < etheradddr->sll_halen; i++) {
+ *c++ = nixio__bin2hex[(etheradddr->sll_addr[i] & 0xf0) >> 4];
+ *c++ = nixio__bin2hex[(etheradddr->sll_addr[i] & 0x0f)];
+ *c++ = ':';
+ }
+ *(c-1) = 0;
+ return 0;
+#endif
} else {
errno = EAFNOSUPPORT;
return -1;
}
}
+/**
+ * netmask to prefix helper
+ */
+int nixio__addr_prefix(struct sockaddr *saddr) {
+ int prefix = 0;
+ size_t len;
+ uint8_t *addr;
+
+ if (saddr->sa_family == AF_INET) {
+ addr = (uint8_t*)(&((struct sockaddr_in*)saddr)->sin_addr);
+ len = 4;
+ } else if (saddr->sa_family == AF_INET6) {
+ addr = (uint8_t*)(&((struct sockaddr_in6*)saddr)->sin6_addr);
+ len = 16;
+ } else {
+ errno = EAFNOSUPPORT;
+ return -1;
+ }
+
+ for (size_t i = 0; i < len; i++) {
+ if (addr[i] == 0xff) {
+ prefix += 8;
+ } else if (addr[i] == 0x00) {
+ break;
+ } else {
+ for (uint8_t c = addr[i]; c; c <<= 1) {
+ prefix++;
+ }
+ }
+ }
+
+ return prefix;
+}
/**
* getaddrinfo(host, family, port)
return 2;
}
+#if defined(__linux__) || defined(BSD)
+#ifdef BSD
+#include <net/if.h>
+#endif
+#include <ifaddrs.h>
+
+static int nixio_getifaddrs(lua_State *L) {
+ nixio_addr addr;
+ struct ifaddrs *ifaddr, *c;
+ if (getifaddrs(&ifaddr) == -1) {
+ return nixio__perror(L);
+ }
+
+ lua_newtable(L);
+ unsigned int i = 1;
+
+ for (c = ifaddr; c; c = c->ifa_next) {
+ lua_newtable(L);
+
+ lua_pushstring(L, c->ifa_name);
+ lua_setfield(L, -2, "name");
+
+ lua_createtable(L, 0, 7);
+ lua_pushboolean(L, c->ifa_flags & IFF_UP);
+ lua_setfield(L, -2, "up");
+
+ lua_pushboolean(L, c->ifa_flags & IFF_BROADCAST);
+ lua_setfield(L, -2, "broadcast");
+
+ lua_pushboolean(L, c->ifa_flags & IFF_LOOPBACK);
+ lua_setfield(L, -2, "loopback");
+
+ lua_pushboolean(L, c->ifa_flags & IFF_POINTOPOINT);
+ lua_setfield(L, -2, "pointtopoint");
+
+ lua_pushboolean(L, c->ifa_flags & IFF_NOARP);
+ lua_setfield(L, -2, "noarp");
+
+ lua_pushboolean(L, c->ifa_flags & IFF_PROMISC);
+ lua_setfield(L, -2, "promisc");
+
+ lua_pushboolean(L, c->ifa_flags & IFF_MULTICAST);
+ lua_setfield(L, -2, "multicast");
+ lua_setfield(L, -2, "flags");
+
+ if (c->ifa_addr && !nixio__addr_parse(&addr, c->ifa_addr)) {
+ lua_pushstring(L, addr.host);
+ lua_setfield(L, -2, "addr");
+
+ if (c->ifa_addr->sa_family == AF_INET) {
+ lua_pushliteral(L, "inet");
+ } else if (c->ifa_addr->sa_family == AF_INET6) {
+ lua_pushliteral(L, "inet6");
+#ifdef AF_PACKET
+ } else if (c->ifa_addr->sa_family == AF_PACKET) {
+ lua_pushliteral(L, "packet");
+#endif
+ } else {
+ lua_pushliteral(L, "unknown");
+ }
+ lua_setfield(L, -2, "family");
+
+#ifdef __linux__
+ if (c->ifa_addr->sa_family == AF_PACKET) {
+ lua_pushinteger(L, addr.port);
+ lua_setfield(L, -2, "ifindex");
+
+ lua_pushinteger(L, addr.prefix);
+ lua_setfield(L, -2, "hatype");
+
+ if (c->ifa_data) {
+ lua_createtable(L, 0, 10);
+ struct nixio__nds *stats = c->ifa_data;
+
+ lua_pushnumber(L, stats->rx_packets);
+ lua_setfield(L, -2, "rx_packets");
+
+ lua_pushnumber(L, stats->tx_packets);
+ lua_setfield(L, -2, "tx_packets");
+
+ lua_pushnumber(L, stats->rx_bytes);
+ lua_setfield(L, -2, "rx_bytes");
+
+ lua_pushnumber(L, stats->tx_bytes);
+ lua_setfield(L, -2, "tx_bytes");
+
+ lua_pushnumber(L, stats->rx_errors);
+ lua_setfield(L, -2, "rx_errors");
+
+ lua_pushnumber(L, stats->tx_errors);
+ lua_setfield(L, -2, "tx_errors");
+
+ lua_pushnumber(L, stats->rx_dropped);
+ lua_setfield(L, -2, "rx_dropped");
+
+ lua_pushnumber(L, stats->tx_dropped);
+ lua_setfield(L, -2, "tx_dropped");
+
+ lua_pushnumber(L, stats->multicast);
+ lua_setfield(L, -2, "multicast");
+
+ lua_pushnumber(L, stats->collisions);
+ lua_setfield(L, -2, "collisions");
+ } else {
+ lua_newtable(L);
+ }
+ lua_setfield(L, -2, "data");
+ }
+#endif
+ }
+
+ if (c->ifa_netmask && !nixio__addr_parse(&addr, c->ifa_netmask)) {
+ lua_pushstring(L, addr.host);
+ lua_setfield(L, -2, "netmask");
+
+ lua_pushinteger(L, nixio__addr_prefix(c->ifa_netmask));
+ lua_setfield(L, -2, "prefix");
+ }
+
+ if (c->ifa_broadaddr && !nixio__addr_parse(&addr, c->ifa_broadaddr)) {
+ lua_pushstring(L, addr.host);
+ lua_setfield(L, -2, "broadaddr");
+ }
+
+ if (c->ifa_dstaddr && !nixio__addr_parse(&addr, c->ifa_dstaddr)) {
+ lua_pushstring(L, addr.host);
+ lua_setfield(L, -2, "dstaddr");
+ }
+
+ lua_rawseti(L, -2, i++);
+ }
+
+ freeifaddrs(ifaddr);
+ return 1;
+}
+#endif
+
/* module table */
static const luaL_reg R[] = {
+#if defined(__linux__) || defined(BSD)
+ {"getifaddrs", nixio_getifaddrs},
+#endif
{"getaddrinfo", nixio_getaddrinfo},
{"getnameinfo", nixio_getnameinfo},
{NULL, NULL}
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