// vim:ts=8:expandtab
#include <stdio.h>
-#include <stdlib.h>
#include <string.h>
-#include <ctype.h>
-#include <limits.h>
+#include <yajl/yajl_gen.h>
+#include <yajl/yajl_version.h>
#ifdef LINUX
#include <iwlib.h>
+#else
+#ifndef __FreeBSD__
+#define IW_ESSID_MAX_SIZE 32
+#endif
+#endif
+
+#ifdef __FreeBSD__
+#include <sys/param.h>
+#include <sys/ioctl.h>
+#include <sys/socket.h>
+#include <ifaddrs.h>
+#include <net/if.h>
+#include <net/if_media.h>
+#include <net80211/ieee80211.h>
+#include <net80211/ieee80211_ioctl.h>
+#include <unistd.h>
+#define IW_ESSID_MAX_SIZE IEEE80211_NWID_LEN
+#endif
+
+#ifdef __DragonFly__
+#include <sys/param.h>
+#include <sys/ioctl.h>
+#include <sys/socket.h>
+#include <ifaddrs.h>
+#include <net/if.h>
+#include <net/if_media.h>
+#include <netproto/802_11/ieee80211.h>
+#include <netproto/802_11/ieee80211_ioctl.h>
+#include <unistd.h>
+#define IW_ESSID_MAX_SIZE IEEE80211_NWID_LEN
+#endif
+
+#ifdef __OpenBSD__
+#include <sys/ioctl.h>
+#include <sys/socket.h>
+#include <net/if.h>
+#include <sys/types.h>
+#include <netinet/in.h>
+#include <netinet/if_ether.h>
+#include <net80211/ieee80211.h>
+#include <net80211/ieee80211_ioctl.h>
#endif
#include "i3status.h"
-static const char *get_wireless_essid(const char *interface) {
- static char part[512];
+#define WIRELESS_INFO_FLAG_HAS_ESSID (1 << 0)
+#define WIRELESS_INFO_FLAG_HAS_QUALITY (1 << 1)
+#define WIRELESS_INFO_FLAG_HAS_SIGNAL (1 << 2)
+#define WIRELESS_INFO_FLAG_HAS_NOISE (1 << 3)
+
+#define PERCENT_VALUE(value, total) ((int)(value * 100 / (float)total + 0.5f))
+
+typedef struct {
+ int flags;
+ char essid[IW_ESSID_MAX_SIZE + 1];
+ int quality;
+ int quality_max;
+ int quality_average;
+ int signal_level;
+ int signal_level_max;
+ int noise_level;
+ int noise_level_max;
+ int bitrate;
+} wireless_info_t;
+
+static int get_wireless_info(const char *interface, wireless_info_t *info) {
+ memset(info, 0, sizeof(wireless_info_t));
+
#ifdef LINUX
- int skfd;
- if ((skfd = iw_sockets_open()) < 0) {
- perror("socket");
- exit(-1);
+ int skfd = iw_sockets_open();
+ if (skfd < 0) {
+ perror("iw_sockets_open");
+ return 0;
}
- struct wireless_config wcfg;
- if (iw_get_basic_config(skfd, interface, &wcfg) >= 0)
- snprintf(part, sizeof(part), "%s", wcfg.essid);
- else part[0] = '\0';
- (void)close(skfd);
-#else
- part[0] = '\0';
+
+ wireless_config wcfg;
+ if (iw_get_basic_config(skfd, interface, &wcfg) < 0) {
+ close(skfd);
+ return 0;
+ }
+
+ if (wcfg.has_essid && wcfg.essid_on) {
+ info->flags |= WIRELESS_INFO_FLAG_HAS_ESSID;
+ strncpy(&info->essid[0], wcfg.essid, IW_ESSID_MAX_SIZE);
+ info->essid[IW_ESSID_MAX_SIZE] = '\0';
+ }
+
+ /* Wireless quality is a relative value in a driver-specific range.
+ Signal and noise level can be either relative or absolute values
+ in dBm. Furthermore, noise and quality can be expressed directly
+ in dBm or in RCPI (802.11k), which we convert to dBm. When those
+ values are expressed directly in dBm, they range from -192 to 63,
+ and since the values are packed into 8 bits, we need to perform
+ 8-bit arithmetic on them. Assume absolute values if everything
+ else fails (driver bug). */
+
+ iwrange range;
+ if (iw_get_range_info(skfd, interface, &range) < 0) {
+ close(skfd);
+ return 0;
+ }
+
+ iwstats stats;
+ if (iw_get_stats(skfd, interface, &stats, &range, 1) < 0) {
+ close(skfd);
+ return 0;
+ }
+
+ if (stats.qual.level != 0 || (stats.qual.updated & (IW_QUAL_DBM | IW_QUAL_RCPI))) {
+ if (!(stats.qual.updated & IW_QUAL_QUAL_INVALID)) {
+ info->quality = stats.qual.qual;
+ info->quality_max = range.max_qual.qual;
+ info->quality_average = range.avg_qual.qual;
+ info->flags |= WIRELESS_INFO_FLAG_HAS_QUALITY;
+ }
+
+ if (stats.qual.updated & IW_QUAL_RCPI) {
+ if (!(stats.qual.updated & IW_QUAL_LEVEL_INVALID)) {
+ info->signal_level = stats.qual.level / 2.0 - 110 + 0.5;
+ info->flags |= WIRELESS_INFO_FLAG_HAS_SIGNAL;
+ }
+ if (!(stats.qual.updated & IW_QUAL_NOISE_INVALID)) {
+ info->noise_level = stats.qual.noise / 2.0 - 110 + 0.5;
+ info->flags |= WIRELESS_INFO_FLAG_HAS_NOISE;
+ }
+ }
+ else {
+ if ((stats.qual.updated & IW_QUAL_DBM) || stats.qual.level > range.max_qual.level) {
+ if (!(stats.qual.updated & IW_QUAL_LEVEL_INVALID)) {
+ info->signal_level = stats.qual.level;
+ if (info->signal_level > 63)
+ info->signal_level -= 256;
+ info->flags |= WIRELESS_INFO_FLAG_HAS_SIGNAL;
+ }
+ if (!(stats.qual.updated & IW_QUAL_NOISE_INVALID)) {
+ info->noise_level = stats.qual.noise;
+ if (info->noise_level > 63)
+ info->noise_level -= 256;
+ info->flags |= WIRELESS_INFO_FLAG_HAS_NOISE;
+ }
+ }
+ else {
+ if (!(stats.qual.updated & IW_QUAL_LEVEL_INVALID)) {
+ info->signal_level = stats.qual.level;
+ info->signal_level_max = range.max_qual.level;
+ info->flags |= WIRELESS_INFO_FLAG_HAS_SIGNAL;
+ }
+ if (!(stats.qual.updated & IW_QUAL_NOISE_INVALID)) {
+ info->noise_level = stats.qual.noise;
+ info->noise_level_max = range.max_qual.noise;
+ info->flags |= WIRELESS_INFO_FLAG_HAS_NOISE;
+ }
+ }
+ }
+ }
+ else {
+ if (!(stats.qual.updated & IW_QUAL_QUAL_INVALID)) {
+ info->quality = stats.qual.qual;
+ info->flags |= WIRELESS_INFO_FLAG_HAS_QUALITY;
+ }
+ if (!(stats.qual.updated & IW_QUAL_LEVEL_INVALID)) {
+ info->quality = stats.qual.level;
+ info->flags |= WIRELESS_INFO_FLAG_HAS_SIGNAL;
+ }
+ if (!(stats.qual.updated & IW_QUAL_NOISE_INVALID)) {
+ info->quality = stats.qual.noise;
+ info->flags |= WIRELESS_INFO_FLAG_HAS_NOISE;
+ }
+ }
+
+ struct iwreq wrq;
+ if (iw_get_ext(skfd, interface, SIOCGIWRATE, &wrq) >= 0)
+ info->bitrate = wrq.u.bitrate.value;
+
+ close(skfd);
+ return 1;
#endif
- return part;
+#if defined(__FreeBSD__) || defined(__DragonFly__)
+ int s, len, inwid;
+ uint8_t buf[24 * 1024], *cp;
+ struct ieee80211req na;
+ char network_id[IEEE80211_NWID_LEN + 1];
+
+ if ((s = socket(AF_INET, SOCK_DGRAM, 0)) == -1)
+ return (0);
+
+ memset(&na, 0, sizeof(na));
+ strlcpy(na.i_name, interface, sizeof(na.i_name));
+ na.i_type = IEEE80211_IOC_SSID;
+ na.i_data = &info->essid[0];
+ na.i_len = IEEE80211_NWID_LEN + 1;
+ if ((inwid = ioctl(s, SIOCG80211, (caddr_t)&na)) == -1) {
+ close(s);
+ return (0);
+ }
+ if (inwid == 0) {
+ if (na.i_len <= IEEE80211_NWID_LEN)
+ len = na.i_len + 1;
+ else
+ len = IEEE80211_NWID_LEN + 1;
+ info->essid[len -1] = '\0';
+ } else {
+ close(s);
+ return (0);
+ }
+ info->flags |= WIRELESS_INFO_FLAG_HAS_ESSID;
+
+ memset(&na, 0, sizeof(na));
+ strlcpy(na.i_name, interface, sizeof(na.i_name));
+ na.i_type = IEEE80211_IOC_SCAN_RESULTS;
+ na.i_data = buf;
+ na.i_len = sizeof(buf);
+
+ if (ioctl(s, SIOCG80211, (caddr_t)&na) == -1) {
+ printf("fail\n");
+ close(s);
+ return (0);
+ }
+
+ close(s);
+ len = na.i_len;
+ cp = buf;
+ struct ieee80211req_scan_result *sr;
+ uint8_t *vp;
+ sr = (struct ieee80211req_scan_result *)cp;
+ vp = (u_int8_t *)(sr + 1);
+ strlcpy(network_id, (const char *)vp, sr->isr_ssid_len + 1);
+ if (!strcmp(network_id, &info->essid[0])) {
+ info->signal_level = sr->isr_rssi;
+ info->flags |= WIRELESS_INFO_FLAG_HAS_SIGNAL;
+ info->noise_level = sr->isr_noise;
+ info->flags |= WIRELESS_INFO_FLAG_HAS_NOISE;
+ info->quality = sr->isr_intval;
+ info->flags |= WIRELESS_INFO_FLAG_HAS_QUALITY;
+ }
+
+ return 1;
+#endif
+#ifdef __OpenBSD__
+ struct ifreq ifr;
+ struct ieee80211_bssid bssid;
+ struct ieee80211_nwid nwid;
+ struct ieee80211_nodereq nr;
+
+ struct ether_addr ea;
+
+ int s, len, ibssid, inwid;
+ u_int8_t zero_bssid[IEEE80211_ADDR_LEN];
+
+ if ((s = socket(AF_INET, SOCK_DGRAM, 0)) == -1)
+ return (0);
+
+ memset(&ifr, 0, sizeof(ifr));
+ ifr.ifr_data = (caddr_t)&nwid;
+ (void)strlcpy(ifr.ifr_name, interface, sizeof(ifr.ifr_name));
+ inwid = ioctl(s, SIOCG80211NWID, (caddr_t)&ifr);
+
+ memset(&bssid, 0, sizeof(bssid));
+ strlcpy(bssid.i_name, interface, sizeof(bssid.i_name));
+ ibssid = ioctl(s, SIOCG80211BSSID, &bssid);
+
+ if (ibssid != 0 || inwid != 0) {
+ close(s);
+ return 0;
+ }
+
+ /* NWID */
+ {
+ if (nwid.i_len <= IEEE80211_NWID_LEN)
+ len = nwid.i_len + 1;
+ else
+ len = IEEE80211_NWID_LEN + 1;
+
+ strncpy(&info->essid[0], nwid.i_nwid, len);
+ info->essid[IW_ESSID_MAX_SIZE] = '\0';
+ info->flags |= WIRELESS_INFO_FLAG_HAS_ESSID;
+ }
+
+ /* Signal strength */
+ {
+ memset(&zero_bssid, 0, sizeof(zero_bssid));
+ if (ibssid == 0 && memcmp(bssid.i_bssid, zero_bssid, IEEE80211_ADDR_LEN) != 0) {
+ memcpy(&ea.ether_addr_octet, bssid.i_bssid, sizeof(ea.ether_addr_octet));
+
+ bzero(&nr, sizeof(nr));
+ bcopy(bssid.i_bssid, &nr.nr_macaddr, sizeof(nr.nr_macaddr));
+ strlcpy(nr.nr_ifname, interface, sizeof(nr.nr_ifname));
+
+ if (ioctl(s, SIOCG80211NODE, &nr) == 0 && nr.nr_rssi) {
+ if (nr.nr_max_rssi)
+ info->signal_level_max = IEEE80211_NODEREQ_RSSI(&nr);
+ else
+ info->signal_level = nr.nr_rssi;
+
+ info->flags |= WIRELESS_INFO_FLAG_HAS_SIGNAL;
+ }
+ }
+ }
+
+ close(s);
+ return 1;
+#endif
+ return 0;
}
-/*
- * Just parses /proc/net/wireless looking for lines beginning with
- * wlan_interface, extracting the quality of the link and adding the
- * current IP address of wlan_interface.
- *
- */
-void print_wireless_info(const char *interface, const char *format_up, const char *format_down) {
- char buf[1024];
- int quality = 0;
- char *interfaces;
+void print_wireless_info(yajl_gen json_gen, char *buffer, const char *interface, const char *format_up, const char *format_down) {
const char *walk;
- memset(buf, 0, sizeof(buf));
+ char *outwalk = buffer;
+ wireless_info_t info;
- if (!slurp("/proc/net/wireless", buf, sizeof(buf)))
- die("Could not open \"/proc/net/wireless\"\n");
+ INSTANCE(interface);
- interfaces = skip_character(buf, '\n', 1) + 1;
- while ((interfaces = skip_character(interfaces, '\n', 1)+1) < buf+strlen(buf)) {
- while (isspace((int)*interfaces))
- interfaces++;
- if (!BEGINS_WITH(interfaces, interface))
- continue;
- if (sscanf(interfaces, "%*[^:]: 0000 %d", &quality) != 1)
- continue;
- break;
- }
+ const char *ip_address = get_ip_addr(interface);
+ if (ip_address == NULL) {
+ START_COLOR("color_bad");
+ outwalk += sprintf(outwalk, "%s", format_down);
+ goto out;
+ } else {
+ START_COLOR("color_good");
+ }
- if ((quality == UCHAR_MAX) || (quality == 0)) {
- walk = format_down;
- printf("%s", color("#FF0000"));
- } else {
- printf("%s", color("#00FF00"));
+ if (get_wireless_info(interface, &info)) {
walk = format_up;
+ if (info.flags & WIRELESS_INFO_FLAG_HAS_QUALITY)
+ START_COLOR((info.quality < info.quality_average ? "color_degraded" : "color_good"));
+ }
+ else {
+ walk = format_down;
+ START_COLOR("color_bad");
}
for (; *walk != '\0'; walk++) {
if (*walk != '%') {
- putchar(*walk);
+ *(outwalk++) = *walk;
continue;
}
if (BEGINS_WITH(walk+1, "quality")) {
- (void)printf("%03d%%", quality);
+ if (info.flags & WIRELESS_INFO_FLAG_HAS_QUALITY) {
+ if (info.quality_max)
+ outwalk += sprintf(outwalk, "%03d%%", PERCENT_VALUE(info.quality, info.quality_max));
+ else
+ outwalk += sprintf(outwalk, "%d", info.quality);
+ } else {
+ *(outwalk++) = '?';
+ }
walk += strlen("quality");
}
+ if (BEGINS_WITH(walk+1, "signal")) {
+ if (info.flags & WIRELESS_INFO_FLAG_HAS_SIGNAL) {
+ if (info.signal_level_max)
+ outwalk += sprintf(outwalk, "%03d%%", PERCENT_VALUE(info.signal_level, info.signal_level_max));
+ else
+ outwalk += sprintf(outwalk, "%d dBm", info.signal_level);
+ } else {
+ *(outwalk++) = '?';
+ }
+ walk += strlen("signal");
+ }
+
+ if (BEGINS_WITH(walk+1, "noise")) {
+ if (info.flags & WIRELESS_INFO_FLAG_HAS_NOISE) {
+ if (info.noise_level_max)
+ outwalk += sprintf(outwalk, "%03d%%", PERCENT_VALUE(info.noise_level, info.noise_level_max));
+ else
+ outwalk += sprintf(outwalk, "%d dBm", info.noise_level);
+ } else {
+ *(outwalk++) = '?';
+ }
+ walk += strlen("noise");
+ }
+
if (BEGINS_WITH(walk+1, "essid")) {
- (void)printf("%s", get_wireless_essid(interface));
+ if (info.flags & WIRELESS_INFO_FLAG_HAS_ESSID)
+ outwalk += sprintf(outwalk, "%s", info.essid);
+ else
+ *(outwalk++) = '?';
walk += strlen("essid");
}
if (BEGINS_WITH(walk+1, "ip")) {
- const char *ip_address = get_ip_addr(interface);
- if (ip_address != NULL)
- (void)printf("%s", get_ip_addr(interface));
- else (void)printf("no IP");
- walk += strlen("ip");
+ outwalk += sprintf(outwalk, "%s", ip_address);
+ walk += strlen("ip");
}
+
+#ifdef LINUX
+ if (BEGINS_WITH(walk+1, "bitrate")) {
+ char br_buffer[128];
+
+ iw_print_bitrate(br_buffer, sizeof(br_buffer), info.bitrate);
+
+ outwalk += sprintf(outwalk, "%s", br_buffer);
+ walk += strlen("bitrate");
+ }
+#endif
}
- (void)printf("%s", endcolor());
+out:
+ END_COLOR;
+ OUTPUT_FULL_TEXT(buffer);
}
projects / i3 / i3status / blobdiff