--- /dev/null
+/*
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * Copyright (C) 2008 John Crispin <blogic@openwrt.org>
+ * Copyright (C) 2008 Steven Barth <steven@midlink.org>
+ */
+
+#include <net/if.h>
+#include <net/if_arp.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <linux/sockios.h>
+#include <sys/ioctl.h>
+#include <dirent.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <stdlib.h>
+
+#include <lua.h>
+#include <lualib.h>
+#include <lauxlib.h>
+
+#include "helper.h"
+
+int sock_ifconfig = 0;
+
+int ifc_startup(void)
+{
+ if(!sock_ifconfig)
+ sock_ifconfig = socket(AF_INET, SOCK_DGRAM, 0);
+ return sock_ifconfig;
+}
+
+void ifc_shutdown(void)
+{
+ if(!sock_ifconfig)
+ return;
+ close(sock_ifconfig);
+ sock_ifconfig = 0;
+}
+
+static int isdev(const struct dirent *entry)
+{
+ if(*entry->d_name == '.')
+ return 0;
+ return 1;
+}
+
+static void ifc_addif(lua_State *L, char *ifname)
+{
+ char *ip = malloc(32);
+ struct ifreq ifr;
+ lua_pushstring(L, ifname);
+ lua_newtable(L);
+ strncpy(ifr.ifr_name, ifname, IFNAMSIZ);
+
+ if(!ioctl(sock_ifconfig, SIOCGIFADDR, &ifr))
+ {
+ ipv42char(&ifr.ifr_addr.sa_data[2], ip);
+ add_table_entry(L, "ip", ip);
+ }
+
+ if(!ioctl(sock_ifconfig, SIOCGIFNETMASK, &ifr))
+ {
+ ipv42char(&ifr.ifr_netmask.sa_data[2], ip);
+ add_table_entry(L, "netmask", ip);
+ }
+
+ if(!ioctl(sock_ifconfig, SIOCGIFBRDADDR, &ifr))
+ {
+ ipv42char(&ifr.ifr_broadaddr.sa_data[2], ip);
+ add_table_entry(L, "broadaddr", ip);
+ }
+
+ if(!ioctl(sock_ifconfig, SIOCGIFHWADDR, &ifr))
+ {
+ mac2char(ifr.ifr_hwaddr.sa_data, ip);
+ add_table_entry(L, "mac", ip);
+ }
+
+ if(!ioctl(sock_ifconfig, SIOCGIFFLAGS, &ifr))
+ {
+ if(ifr.ifr_flags & IFF_UP)
+ add_table_entry(L, "up", "1");
+ else
+ add_table_entry(L, "up", "0");
+ }
+
+ ioctl(sock_ifconfig, SIOCGIFMTU, &ifr);
+ lua_pushstring(L, "mtu");
+ lua_pushinteger(L, ifr.ifr_mtu);
+ lua_settable(L, -3);
+ free(ip);
+ lua_settable(L, -3);
+}
+
+#define SYSFS_CLASS_NET "/sys/class/net/"
+int ifc_getall(lua_State *L)
+{
+ int numreqs = 50;
+ struct dirent **namelist;
+ int i, count = 0;
+ struct ifconf ifc;
+ struct ifreq *ifr;
+ ifc.ifc_buf = NULL;
+ count = scandir(SYSFS_CLASS_NET, &namelist, isdev, alphasort);
+ if (count < 0)
+ {
+ return 0;
+ }
+ lua_newtable(L);
+ for (i = 0; i < count; i++)
+ {
+ ifc_addif(L, namelist[i]->d_name);
+ free(namelist[i]);
+ }
+ free(namelist);
+
+ ifc.ifc_len = sizeof(struct ifreq) * numreqs;
+ ifc.ifc_buf = malloc(ifc.ifc_len);
+ if(ioctl(sock_ifconfig, SIOCGIFCONF, &ifc) < 0)
+ goto out;
+ ifr = ifc.ifc_req;
+ for(i = 0; i < ifc.ifc_len; i += sizeof(struct ifreq))
+ {
+ if(strchr(ifr->ifr_name, ':'))
+ ifc_addif(L, ifr->ifr_name);
+ ifr++;
+ }
+out:
+ free(ifc.ifc_buf);
+ return 1;
+}
+
+static inline int _ifc_setip(lua_State *L, int i)
+{
+ struct ifreq ifr;
+ char *ifname, *ip;
+ if(lua_gettop(L) != 2)
+ {
+ lua_pushstring(L, "invalid arg list");
+ lua_error(L);
+ return 0;
+ }
+ ifname = (char *)lua_tostring (L, 1);
+ ip = (char *)lua_tostring (L, 2);
+ strncpy(ifr.ifr_name, ifname, IFNAMSIZ);
+ ifr.ifr_addr.sa_family = AF_INET;
+ if(char2ipv4(ip, &ifr.ifr_addr.sa_data[2]))
+ {
+ lua_pushstring(L, "invalid ip");
+ lua_error(L);
+ return 0;
+ }
+ if(!ioctl(sock_ifconfig, i, &ifr))
+ lua_pushboolean(L, 1);
+ else
+ lua_pushboolean(L, 0);
+ return 1;
+}
+
+int ifc_setip(lua_State *L)
+{
+ return _ifc_setip(L, SIOCSIFADDR);
+}
+
+int ifc_setnetmask(lua_State *L)
+{
+ return _ifc_setip(L, SIOCGIFNETMASK);
+}
+
+int ifc_setbroadcast(lua_State *L)
+{
+ return _ifc_setip(L, SIOCSIFBRDADDR);
+}
+
+int ifc_setmtu(lua_State *L)
+{
+ struct ifreq ifr;
+ char *ifname;
+ int mtu;
+ if(lua_gettop(L) != 2)
+ {
+ lua_pushstring(L, "invalid arg list");
+ lua_error(L);
+ return 0;
+ }
+ ifname = (char *)lua_tostring (L, 1);
+ mtu = (int)lua_tointeger (L, 2);
+ strncpy(ifr.ifr_name, ifname, IFNAMSIZ);
+ ifr.ifr_mtu = mtu;
+ if(!ioctl(sock_ifconfig, SIOCSIFMTU, &ifr))
+ lua_pushboolean(L, 1);
+ else
+ lua_pushboolean(L, 0);
+ return 1;
+}
+
+static int _ifc_up(lua_State *L, int up)
+{
+ struct ifreq ifr;
+ char *ifname;
+ if(lua_gettop(L) != 1)
+ {
+ lua_pushstring(L, "invalid arg list");
+ lua_error(L);
+ return 0;
+ }
+
+ ifname = (char *)lua_tostring (L, 1);
+ strncpy(ifr.ifr_name, ifname, IFNAMSIZ);
+
+ if(ioctl(sock_ifconfig, SIOCGIFFLAGS, &ifr) < 0)
+ {
+ lua_pushboolean(L, 0);
+ return 1;
+ }
+ if(up)
+ ifr.ifr_flags |= IFF_UP | IFF_RUNNING;
+ else
+ ifr.ifr_flags &= ~IFF_UP;
+ if(!ioctl(sock_ifconfig, SIOCSIFFLAGS, &ifr))
+ lua_pushboolean(L, 1);
+ else
+ lua_pushboolean(L, 0);
+ return 1;
+}
+
+int ifc_up(lua_State *L)
+{
+ return _ifc_up(L, 1);
+}
+
+int ifc_down(lua_State *L)
+{
+ return _ifc_up(L, 0);
+}
+
projects / project / luci.git / blobdiff