diff options
| -rw-r--r-- | plugin.c | 11 | ||||
| -rw-r--r-- | plugin.h | 1 | ||||
| -rw-r--r-- | plugin_netinfo.c | 227 | ||||
| -rw-r--r-- | plugins.m4 | 18 |
4 files changed, 255 insertions, 2 deletions
@@ -113,6 +113,9 @@ char *Plugins[] = { #ifdef PLUGIN_NETDEV "netdev", #endif +#ifdef PLUGIN_NETINFO + "netinfo", +#endif #ifdef PLUGIN_POP3 "pop3", #endif @@ -207,6 +210,8 @@ int plugin_init_mysql(void); void plugin_exit_mysql(void); int plugin_init_netdev(void); void plugin_exit_netdev(void); +int plugin_init_netinfo(void); +void plugin_exit_netinfo(void); int plugin_init_pop3(void); void plugin_exit_pop3(void); int plugin_init_ppp(void); @@ -320,6 +325,9 @@ int plugin_init(void) #ifdef PLUGIN_NETDEV plugin_init_netdev(); #endif +#ifdef PLUGIN_NETINFO + plugin_init_netinfo(); +#endif #ifdef PLUGIN_POP3 plugin_init_pop3(); #endif @@ -423,6 +431,9 @@ void plugin_exit(void) #ifdef PLUGIN_NETDEV plugin_exit_netdev(); #endif +#ifdef PLUGIN_NETINFO + plugin_exit_netinfo(); +#endif #ifdef PLUGIN_POP3 plugin_exit_pop3(); #endif @@ -30,6 +30,7 @@ #ifndef _PLUGIN_H_ #define _PLUGIN_H_ +int plugin_list(void); int plugin_init(void); void plugin_exit(void); #endif diff --git a/plugin_netinfo.c b/plugin_netinfo.c new file mode 100644 index 0000000..143a5e1 --- /dev/null +++ b/plugin_netinfo.c @@ -0,0 +1,227 @@ +/* $Id: $ + * $URL: $ + * + * plugin getting information about network devices (IPaddress, MACaddress, ...) + * + * Copyright (C) 2007 Volker Gering <v.gering@t-online.de> + * Copyright (C) 2004, 2005, 2006, 2007 The LCD4Linux Team <lcd4linux-devel@users.sourceforge.net> + * + * This file is part of LCD4Linux. + * + * LCD4Linux 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, or (at your option) + * any later version. + * + * LCD4Linux is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ + +/* + * exported functions: + * + * int plugin_init_netinfo (void) + * adds functions to get information about network devices + * + */ + + +#include "config.h" + +#include <stdlib.h> +#include <unistd.h> +#include <string.h> +#include <ctype.h> + +#include "debug.h" +#include "plugin.h" +#include "qprintf.h" + +#include <sys/types.h> /* socket() */ +#include <sys/socket.h> /* socket() */ +#include <sys/ioctl.h> /* SIOCGIFNAME */ +#include <net/if.h> /* ifreq{} */ +#include <errno.h> /* errno */ +#include <netinet/in.h> /* inet_ntoa() */ +#include <arpa/inet.h> /* inet_ntoa() */ + + +/* socket descriptor: + * -2 initial state + * -1 error: message not printed + * -3 error: message printed, deactivate plugin + */ +static int socknr = -2; + +static int open_net(void) +{ + + if (socknr == -3) + return -1; + if (socknr == -2) { + socknr = socket(PF_INET, SOCK_STREAM, 0); + } + if (socknr == -1) { + error("%s: socket(PF_INET, SOCK_STREAM, 0) failed: %s", "plugin_netinfo", strerror(errno)); + error(" deactivate plugin netinfo"); + socknr = -3; + return -1; + } + + return 0; +} + + +static void my_exists(RESULT * result, RESULT * arg1) +{ + struct ifreq ifreq; + double value = 1.0; + + if (socknr < 0) { + /* no open socket */ + value = 0.0; + SetResult(&result, R_NUMBER, &value); + return; + } + + strncpy(ifreq.ifr_name, R2S(arg1), sizeof(ifreq.ifr_name)); + if (ioctl(socknr, SIOCGIFFLAGS, &ifreq) < 0) { + if (errno == ENODEV) { + /* device does not exists */ + value = 0.0; + } else { + error("%s: ioctl(FLAGS) failed: %s", "plugin_netinfo", strerror(errno)); + return; + } + } + + /* device exists */ + SetResult(&result, R_NUMBER, &value); +} + + +/* get MAC address (hardware address) of network device */ +static void my_hwaddr(RESULT * result, RESULT * arg1) +{ + struct ifreq ifreq; + unsigned char *hw; + char value[18]; + + if (socknr < 0) { + /* no open socket */ + SetResult(&result, R_STRING, ""); + return; + } + + strncpy(ifreq.ifr_name, R2S(arg1), sizeof(ifreq.ifr_name)); + if (ioctl(socknr, SIOCGIFHWADDR, &ifreq) < 0) { + error("%s: ioctl(IFHWADDR) failed: %s", "plugin_netinfo", strerror(errno)); + return; + } + hw = (unsigned char *) ifreq.ifr_hwaddr.sa_data; + qprintf(value, sizeof(value), "%02x:%02x:%02x:%02x:%02x:%02x", + *hw, *(hw + 1), *(hw + 2), *(hw + 3), *(hw + 4), *(hw + 5)); + + SetResult(&result, R_STRING, value); +} + + +/* get ip address of network device */ +static void my_ipaddr(RESULT * result, RESULT * arg1) +{ + struct ifreq ifreq; + struct sockaddr_in *sin; + char value[16]; + + if (socknr < 0) { + /* no open socket */ + SetResult(&result, R_STRING, ""); + return; + } + + strncpy(ifreq.ifr_name, R2S(arg1), sizeof(ifreq.ifr_name)); + if (ioctl(socknr, SIOCGIFADDR, &ifreq) < 0) { + error("%s: ioctl(IFADDR) failed: %s", "plugin_netinfo", strerror(errno)); + return; + } + sin = (struct sockaddr_in *) &ifreq.ifr_addr; + qprintf(value, sizeof(value), "%s", inet_ntoa(sin->sin_addr)); + + SetResult(&result, R_STRING, value); +} + + +/* get ip netmask of network device */ +static void my_netmask(RESULT * result, RESULT * arg1) +{ + struct ifreq ifreq; + struct sockaddr_in *sin; + char value[16]; + + if (socknr < 0) { + /* no open socket */ + SetResult(&result, R_STRING, ""); + return; + } + + strncpy(ifreq.ifr_name, R2S(arg1), sizeof(ifreq.ifr_name)); + if (ioctl(socknr, SIOCGIFNETMASK, &ifreq) < 0) { + error("%s: ioctl(IFNETMASK) failed: %s", "plugin_netinfo", strerror(errno)); + return; + } + sin = (struct sockaddr_in *) &ifreq.ifr_netmask; + qprintf(value, sizeof(value), "%s", inet_ntoa(sin->sin_addr)); + + SetResult(&result, R_STRING, value); +} + + +/* get ip broadcast address of network device */ +static void my_bcaddr(RESULT * result, RESULT * arg1) +{ + struct ifreq ifreq; + struct sockaddr_in *sin; + char value[16]; + + if (socknr < 0) { + /* no open socket */ + SetResult(&result, R_STRING, ""); + return; + } + + strncpy(ifreq.ifr_name, R2S(arg1), sizeof(ifreq.ifr_name)); + if (ioctl(socknr, SIOCGIFBRDADDR, &ifreq) < 0) { + error("%s: ioctl(IFBRDADDR) failed: %s", "plugin_netinfo", strerror(errno)); + return; + } + sin = (struct sockaddr_in *) &ifreq.ifr_broadaddr; + qprintf(value, sizeof(value), "%s", inet_ntoa(sin->sin_addr)); + + SetResult(&result, R_STRING, value); +} + + +int plugin_init_netinfo(void) +{ + open_net(); + + AddFunction("netinfo::exists", 1, my_exists); + AddFunction("netinfo::hwaddr", 1, my_hwaddr); + AddFunction("netinfo::ipaddr", 1, my_ipaddr); + AddFunction("netinfo::netmask", 1, my_netmask); + AddFunction("netinfo::bcaddr", 1, my_bcaddr); + + return 0; +} + +void plugin_exit_netinfo(void) +{ + close(socknr); +} @@ -49,7 +49,11 @@ for plugin in $plugins; do case "$plugin" in list) - AC_MSG_RESULT([TO BE DONE...]) + AC_MSG_RESULT( + [available plugins:] + [ apm,cpuinfo,diskstats,dvb,exec,file,gps,i2c_sensors,iconv,imon,isdn,kvv,] + [ loadavg,meminfo,mpd,mysql,netdev,netinfo,pop3,ppp,proc_stat,sample,seti,] + [ statfs,uname,uptime,wireless,xmms]) AC_MSG_ERROR([run ./configure --with-plugins=...]) ;; all) @@ -74,6 +78,7 @@ for plugin in $plugins; do PLUGIN_MPD="yes" PLUGIN_MYSQL="yes" PLUGIN_NETDEV="yes" + PLUGIN_NETINFO="yes" PLUGIN_POP3="yes" PLUGIN_PPP="yes" PLUGIN_PROC_STAT="yes" @@ -150,6 +155,9 @@ for plugin in $plugins; do netdev) PLUGIN_NETDEV=$val ;; + netinfo) + PLUGIN_NETINFO=$val + ;; pop3) PLUGIN_POP3=$val ;; @@ -372,12 +380,18 @@ if test "$PLUGIN_MYSQL" = "yes"; then fi fi -# network device +# /proc/net/dev if test "$PLUGIN_NETDEV" = "yes"; then PLUGINS="$PLUGINS plugin_netdev.o" AC_DEFINE(PLUGIN_NETDEV,1,[netdev plugin]) fi +# configuration of network devices +if test "$PLUGIN_NETINFO" = "yes"; then + PLUGINS="$PLUGINS plugin_netinfo.o" + AC_DEFINE(PLUGIN_NETINFO,1,[netinfo plugin]) +fi + # POP3 if test "$PLUGIN_POP3" = "yes"; then PLUGINS="$PLUGINS plugin_pop3.o" |