diff options
Diffstat (limited to 'modules/network/net.c')
| -rw-r--r-- | modules/network/net.c | 452 |
1 files changed, 452 insertions, 0 deletions
diff --git a/modules/network/net.c b/modules/network/net.c new file mode 100644 index 00000000..ebb0612a --- /dev/null +++ b/modules/network/net.c @@ -0,0 +1,452 @@ +/* + * HardInfo - Displays System Information + * Copyright (C) 2003-2008 Leandro A. F. Pereira <leandro@hardinfo.org> + * + * 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, version 2. + * + * This program 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ +/* + * Wireless Extension Example + * http://www.krugle.org/examples/p-OZYzuisV6gyQIaTu/iwconfig.c + */ + +#include "config.h" + +#include <stdio.h> +#include <unistd.h> +#include <string.h> + +#include <sys/ioctl.h> +#include <sys/types.h> +#include <sys/socket.h> + +#include <netinet/in.h> +#include <linux/sockios.h> + +#include <arpa/inet.h> + +#ifdef HAS_LINUX_WE +#include <linux/if.h> +#include <linux/wireless.h> +#else +#include <net/if.h> +#endif /* HAS_LINUX_WE */ + +#include "hardinfo.h" +#include "network.h" + +gchar *network_interfaces = NULL, *network_icons = NULL; + +typedef struct _NetInfo NetInfo; +struct _NetInfo { + char name[16]; + int mtu; + unsigned char mac[8]; + char ip[16]; + char mask[16]; + char broadcast[16]; + +#ifdef HAS_LINUX_WE + char wi_essid[IW_ESSID_MAX_SIZE + 1]; + int wi_rate; + int wi_mode, wi_status; + gboolean wi_has_txpower; + struct iw_param wi_txpower; + int wi_quality_level, wi_signal_level, wi_noise_level; + gboolean is_wireless; +#endif +}; + +#ifdef HAS_LINUX_WE +const gchar *wi_operation_modes[] = { "Auto", "Ad-Hoc", "Managed", "Master", "Repeater", "Secondary", "Unknown" }; + +void get_wireless_info(int fd, NetInfo *netinfo) +{ + FILE *wrls; + char wbuf[256]; + struct iwreq wi_req; + int r, trash; + + netinfo->is_wireless = FALSE; + + if ((wrls = fopen("/proc/net/wireless", "r"))) { + while (fgets(wbuf, 256, wrls)) { + if (strchr(wbuf, ':') && strstr(wbuf, netinfo->name)) { + gchar *buf1 = wbuf; + + netinfo->is_wireless = TRUE; + + buf1 = strchr(buf1, ':') + 1; + + if (strchr(buf1, '.')) { + sscanf(buf1, "%d %d. %d. %d %d %d %d %d %d %d", + &(netinfo->wi_status), + &(netinfo->wi_quality_level), + &(netinfo->wi_signal_level), + &(netinfo->wi_noise_level), + &trash, &trash, &trash, &trash, &trash, &trash); + } else { + sscanf(buf1, "%d %d %d %d %d %d %d %d %d %d", + &(netinfo->wi_status), + &(netinfo->wi_quality_level), + &(netinfo->wi_signal_level), + &(netinfo->wi_noise_level), + &trash, &trash, &trash, &trash, &trash, + &trash); + } + + break; + } + } + fclose(wrls); + } + + if (!netinfo->is_wireless) + return; + + strncpy(wi_req.ifr_name, netinfo->name, 16); + + /* obtain essid */ + wi_req.u.essid.pointer = netinfo->wi_essid; + wi_req.u.essid.length = IW_ESSID_MAX_SIZE + 1; + wi_req.u.essid.flags = 0; + + if (ioctl(fd, SIOCGIWESSID, &wi_req) < 0) { + strcpy(netinfo->wi_essid, ""); + } else { + netinfo->wi_essid[wi_req.u.essid.length] = '\0'; + } + + /* obtain bit rate */ + if (ioctl(fd, SIOCGIWRATE, &wi_req) < 0) { + netinfo->wi_rate = 0; + } else { + netinfo->wi_rate = wi_req.u.bitrate.value; + } + + /* obtain operation mode */ + if (ioctl(fd, SIOCGIWMODE, &wi_req) < 0) { + netinfo->wi_mode = 0; + } else { + if (wi_req.u.mode >= 0 && wi_req.u.mode < 6) { + netinfo->wi_mode = wi_req.u.mode; + } else { + netinfo->wi_mode = 6; + } + } + +#if WIRELESS_EXT >= 10 + /* obtain txpower */ + if (ioctl(fd, SIOCGIWTXPOW, &wi_req) < 0) { + netinfo->wi_has_txpower = FALSE; + } else { + netinfo->wi_has_txpower = TRUE; + + memcpy(&netinfo->wi_txpower, &wi_req.u.txpower, sizeof(struct iw_param)); + } +#else + netinfo->wi_has_txpower = FALSE; +#endif /* WIRELESS_EXT >= 10 */ +} +#endif /* HAS_LINUX_WE */ + +void get_net_info(char *if_name, NetInfo * netinfo) +{ + struct ifreq ifr; + int fd; + + fd = socket(PF_INET, SOCK_DGRAM, IPPROTO_IP); + + /* IPv4 */ + ifr.ifr_addr.sa_family = AF_INET; + strncpy(netinfo->name, if_name, sizeof(netinfo->name)); + + /* MTU */ + strcpy(ifr.ifr_name, if_name); + if (ioctl(fd, SIOCGIFMTU, &ifr) < 0) { + netinfo->mtu = 0; + } else { + netinfo->mtu = ifr.ifr_mtu; + } + + /* HW Address */ + strcpy(ifr.ifr_name, if_name); + if (ioctl(fd, SIOCGIFHWADDR, &ifr) < 0) { + memset(netinfo->mac, 0, 8); + } else { + memcpy(netinfo->mac, ifr.ifr_ifru.ifru_hwaddr.sa_data, 8); + } + + /* IP Address */ + strcpy(ifr.ifr_name, if_name); + if (ioctl(fd, SIOCGIFADDR, &ifr) < 0) { + netinfo->ip[0] = 0; + } else { + snprintf(netinfo->ip, sizeof(netinfo->ip), "%s", + inet_ntoa(((struct sockaddr_in *) &ifr.ifr_addr)-> + sin_addr)); + } + + /* Mask Address */ + strcpy(ifr.ifr_name, if_name); + if (ioctl(fd, SIOCGIFNETMASK, &ifr) < 0) { + netinfo->mask[0] = 0; + } else { + snprintf(netinfo->mask, sizeof(netinfo->mask), "%s", + inet_ntoa(((struct sockaddr_in *) &ifr.ifr_addr)-> + sin_addr)); + } + + /* Broadcast Address */ + strcpy(ifr.ifr_name, if_name); + if (ioctl(fd, SIOCGIFBRDADDR, &ifr) < 0) { + netinfo->broadcast[0] = 0; + } else { + snprintf(netinfo->broadcast, sizeof(netinfo->broadcast), "%s", + inet_ntoa(((struct sockaddr_in *) &ifr.ifr_addr)-> + sin_addr)); + } + +#ifdef HAS_LINUX_WE + get_wireless_info(fd, netinfo); +#endif + + shutdown(fd, 0); + close(fd); +} + +static struct { + char *type; + char *label; + char *icon; +} netdev2type[] = { + { "eth", "Ethernet", "network-interface" }, + { "lo", "Loopback", "network" }, + { "ppp", "Point-to-Point", "modem" }, + { "ath", "Wireless", "wireless" }, + { "wlan", "Wireless", "wireless" }, + { "ra", "Wireless", "wireless" }, + { "wl", "Wireless", "wireless" }, + { "wmaster", "Wireless", "wireless" }, + { "tun", "Virtual Point-to-Point (TUN)", "network" }, + { "tap", "Ethernet (TAP)", "network" }, + { "plip", "Parallel Line Internet Protocol", "network" }, + { "irlan", "Infrared", "network" }, + { "slip", "Serial Line Internet Protocol", "network" }, + { "isdn", "Integrated Services Digital Network", "modem" }, + { "sit", "IPv6-over-IPv4 Tunnel", "network" }, + { "vmnet8", "VMWare Virtual Network Interface (NAT)", "computer" }, + { "vmnet", "VMWare Virtual Network Interface", "computer" }, + { "pan", "Personal Area Network (PAN)", "bluetooth" }, + { "bnep", "Bluetooth", "bluetooth" }, + { "br", "Bridge Interface", "network" }, + { "ham", "Hamachi Virtual Personal Network", "network"}, + { "net", "Ethernet", "network-interface" }, + { "ifb", "Intermediate Functional Block", "network" }, + { "gre", "GRE Network Tunnel", "network" }, + { "msh", "Mesh Network", "wireless" }, + { "wmaster", "Wireless Master Interface", "wireless" }, + { "vboxnet", "VirtualBox Virtual Network Interface", "network" }, + { NULL, "Unknown", "network" }, +}; + +static void net_get_iface_type(gchar * name, gchar ** type, gchar ** icon, NetInfo *ni) +{ + int i; + +#ifdef HAS_LINUX_WE + if (ni->is_wireless) { + *type = "Wireless"; + *icon = "wireless"; + + return; + } +#endif + + for (i = 0; netdev2type[i].type; i++) { + if (g_str_has_prefix(name, netdev2type[i].type)) + break; + } + + *type = netdev2type[i].label; + *icon = netdev2type[i].icon; +} + +static gboolean +remove_net_devices(gpointer key, gpointer value, gpointer data) +{ + return g_str_has_prefix(key, "NET"); +} + +static void scan_net_interfaces_24(void) +{ + FILE *proc_net; + NetInfo ni; + gchar buffer[256]; + gchar *devid, *detailed; + gdouble recv_bytes; + gdouble recv_errors; + gdouble recv_packets; + + gdouble trans_bytes; + gdouble trans_errors; + gdouble trans_packets; + + if (!g_file_test("/proc/net/dev", G_FILE_TEST_EXISTS)) { + if (network_interfaces) { + g_free(network_interfaces); + network_interfaces = g_strdup("[Network Interfaces]\n" + "None found=\n"); + } + + return; + } + + g_free(network_interfaces); + + g_free(network_icons); + + network_interfaces = g_strdup("[Network Interfaces]\n"); + network_icons = g_strdup(""); + + proc_net = fopen("/proc/net/dev", "r"); + if (!proc_net) + return; + + while (fgets(buffer, 256, proc_net)) { + if (strchr(buffer, ':')) { + gint trash; + gchar ifacename[16]; + gchar *buf = buffer; + gchar *iface_type, *iface_icon; + gint i; + + buf = g_strstrip(buf); + + memset(ifacename, 0, 16); + + for (i = 0; buffer[i] != ':' && i < 16; i++) { + ifacename[i] = buffer[i]; + } + + buf = strchr(buf, ':') + 1; + + /* iface: bytes packets errs drop fifo frame compressed multicast */ + sscanf(buf, "%lf %lf %lf %d %d %d %d %d %lf %lf %lf", + &recv_bytes, &recv_packets, + &recv_errors, &trash, &trash, &trash, &trash, + &trash, &trans_bytes, &trans_packets, &trans_errors); + + gdouble recv_mb = recv_bytes / 1048576.0; + gdouble trans_mb = trans_bytes / 1048576.0; + + get_net_info(ifacename, &ni); + + devid = g_strdup_printf("NET%s", ifacename); + + network_interfaces = + h_strdup_cprintf + ("$%s$%s=%s|%.2lfMiB|%.2lfMiB\n", + network_interfaces, devid, ifacename, ni.ip[0] ? ni.ip : "", + trans_mb, recv_mb); + net_get_iface_type(ifacename, &iface_type, &iface_icon, &ni); + + network_icons = h_strdup_cprintf("Icon$%s$%s=%s.png\n", + network_icons, devid, + ifacename, iface_icon); + + detailed = g_strdup_printf("[Network Adapter Properties]\n" + "Interface Type=%s\n" + "Hardware Address (MAC)=%02x:%02x:%02x:%02x:%02x:%02x\n" + "MTU=%d\n" + "[Transfer Details]\n" + "Bytes Received=%.0lf (%.2fMiB)\n" + "Bytes Sent=%.0lf (%.2fMiB)\n", + iface_type, + ni.mac[0], ni.mac[1], + ni.mac[2], ni.mac[3], + ni.mac[4], ni.mac[5], + ni.mtu, + recv_bytes, recv_mb, + trans_bytes, trans_mb); + +#ifdef HAS_LINUX_WE + if (ni.is_wireless) { + gchar *txpower; + + if (ni.wi_has_txpower) { + gint mw, dbm; + + if (ni.wi_txpower.flags & IW_TXPOW_MWATT) { + mw = ni.wi_txpower.value; + dbm = (int) ceil(10.0 * log10((double) ni.wi_txpower.value)); + } else { + dbm = ni.wi_txpower.value; + mw = (int) floor(pow(10.0, ((double) dbm / 10.0))); + } + + txpower = g_strdup_printf("%ddBm (%dmW)", dbm, mw); + } else { + txpower = g_strdup("Unknown"); + } + + detailed = h_strdup_cprintf("\n[Wireless Properties]\n" + "Network Name (SSID)=%s\n" + "Bit Rate=%dMb/s\n" + "Transmission Power=%s\n" + "Mode=%s\n" + "Status=%d\n" + "Link Quality=%d\n" + "Signal / Noise=%d dBm / %d dBm\n", + detailed, + ni.wi_essid, + ni.wi_rate / 1000000, + txpower, + wi_operation_modes[ni.wi_mode], + ni.wi_status, + ni.wi_quality_level, + ni.wi_signal_level, + ni.wi_noise_level); + + g_free(txpower); + } +#endif + + if (ni.ip[0] || ni.mask[0] || ni.broadcast[0]) { + detailed = + h_strdup_cprintf("\n[Internet Protocol (IPv4)]\n" + "IP Address=%s\n" "Mask=%s\n" + "Broadcast Address=%s\n", detailed, + ni.ip[0] ? ni.ip : "Not set", + ni.mask[0] ? ni.mask : "Not set", + ni.broadcast[0] ? ni. + broadcast : "Not set"); + } + + moreinfo_add_with_prefix("NET", devid, detailed); + g_free(devid); + } + } + fclose(proc_net); +} + +void scan_net_interfaces(void) +{ + /* FIXME: See if we're running Linux 2.6 and if /sys is mounted, then use + that instead of /proc/net/dev */ + + /* remove old devices from global device table */ + moreinfo_del_with_prefix("NET"); + + scan_net_interfaces_24(); +} |