]> git.sur5r.net Git - i3/i3status/blobdiff - src/print_wireless_info.c
use NL80211_RATE_INFO_BITRATE (16-bit)
[i3/i3status] / src / print_wireless_info.c
index 3a96b86f93b3d10147c49cace6105cf516dd99fb..3410ba93efb8f9a770e69bbbd8bef77c867a634f 100644 (file)
-// vim:ts=8:expandtab
+// vim:ts=4:sw=4:expandtab
 #include <stdio.h>
 #include <string.h>
+#include <yajl/yajl_gen.h>
+#include <yajl/yajl_version.h>
 
 #ifdef LINUX
-#include <iwlib.h>
+#include <errno.h>
+#include <net/if.h>
+#include <netlink/netlink.h>
+#include <netlink/genl/genl.h>
+#include <netlink/genl/ctrl.h>
+#include <linux/nl80211.h>
+#include <linux/if_ether.h>
+#define IW_ESSID_MAX_SIZE 32
+#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"
 
-#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 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 WIRELESS_INFO_FLAG_HAS_FREQUENCY (1 << 4)
 
 #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;
+    int flags;
+    char essid[IW_ESSID_MAX_SIZE + 1];
+    uint8_t bssid[ETH_ALEN];
+    int quality;
+    int quality_max;
+    int quality_average;
+    int signal_level;
+    int signal_level_max;
+    int noise_level;
+    int noise_level_max;
+    int bitrate;
+    double frequency;
 } wireless_info_t;
 
+// Like iw_print_bitrate, but without the dependency on libiw.
+static void print_bitrate(char *buffer, int buflen, int bitrate) {
+    const int kilo = 1e3;
+    const int mega = 1e6;
+    const int giga = 1e9;
+
+    const double rate = bitrate;
+    char scale;
+    int divisor;
+
+    if (rate >= giga) {
+        scale = 'G';
+        divisor = giga;
+    } else if (rate >= mega) {
+        scale = 'M';
+        divisor = mega;
+    } else {
+        scale = 'k';
+        divisor = kilo;
+    }
+    snprintf(buffer, buflen, "%g %cb/s", rate / divisor, scale);
+}
+
+static uint32_t nl80211_xbm_to_percent(int32_t xbm, uint32_t divisor) {
+#define NOISE_FLOOR_DBM -90
+#define SIGNAL_MAX_DBM -20
+
+    xbm /= divisor;
+    if (xbm < NOISE_FLOOR_DBM)
+        xbm = NOISE_FLOOR_DBM;
+    if (xbm > SIGNAL_MAX_DBM)
+        xbm = SIGNAL_MAX_DBM;
+
+    return 100 - 70 * (((float)SIGNAL_MAX_DBM - (float)xbm) / ((float)SIGNAL_MAX_DBM - (float)NOISE_FLOOR_DBM));
+}
+
+#define WLAN_EID_SSID 0
+
+static void find_ssid(uint8_t *ies, uint32_t ies_len, uint8_t **ssid, uint32_t *ssid_len) {
+    *ssid = NULL;
+    *ssid_len = 0;
+
+    while (ies_len > 2 && ies[0] != WLAN_EID_SSID) {
+        ies_len -= ies[1] + 2;
+        ies += ies[1] + 2;
+    }
+    if (ies_len < 2)
+        return;
+    if (ies_len < 2 + ies[1])
+        return;
+
+    *ssid_len = ies[1];
+    *ssid = ies + 2;
+}
+
+static int gwi_sta_cb(struct nl_msg *msg, void *data) {
+    wireless_info_t *info = data;
+
+    struct nlattr *tb[NL80211_ATTR_MAX + 1];
+    struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
+    struct nlattr *sinfo[NL80211_STA_INFO_MAX + 1];
+    struct nlattr *rinfo[NL80211_RATE_INFO_MAX + 1];
+    static struct nla_policy stats_policy[NL80211_STA_INFO_MAX + 1] = {
+            [NL80211_STA_INFO_RX_BITRATE] = {.type = NLA_NESTED},
+    };
+
+    static struct nla_policy rate_policy[NL80211_RATE_INFO_MAX + 1] = {
+            [NL80211_RATE_INFO_BITRATE] = {.type = NLA_U16},
+    };
+
+    if (nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), genlmsg_attrlen(gnlh, 0), NULL) < 0)
+        return NL_SKIP;
+
+    if (tb[NL80211_ATTR_STA_INFO] == NULL)
+        return NL_SKIP;
+
+    if (nla_parse_nested(sinfo, NL80211_STA_INFO_MAX, tb[NL80211_ATTR_STA_INFO], stats_policy))
+        return NL_SKIP;
+
+    if (sinfo[NL80211_STA_INFO_RX_BITRATE] == NULL)
+        return NL_SKIP;
+
+    if (nla_parse_nested(rinfo, NL80211_RATE_INFO_MAX, sinfo[NL80211_STA_INFO_RX_BITRATE], rate_policy))
+        return NL_SKIP;
+
+    if (rinfo[NL80211_RATE_INFO_BITRATE] == NULL)
+        return NL_SKIP;
+
+    // NL80211_RATE_INFO_BITRATE is specified in units of 100 kbit/s, but iw
+    // used to specify bit/s, so we convert to use the same code path.
+    info->bitrate = (int)nla_get_u16(rinfo[NL80211_RATE_INFO_BITRATE]) * 100 * 1000;
+
+    return NL_SKIP;
+}
+
+static int gwi_scan_cb(struct nl_msg *msg, void *data) {
+    wireless_info_t *info = data;
+    struct genlmsghdr *gnlh = genlmsg_hdr(nlmsg_hdr(msg));
+    struct nlattr *tb[NL80211_ATTR_MAX + 1];
+    struct nlattr *bss[NL80211_BSS_MAX + 1];
+    struct nla_policy bss_policy[NL80211_BSS_MAX + 1] = {
+            [NL80211_BSS_FREQUENCY] = {.type = NLA_U32},
+            [NL80211_BSS_BSSID] = {.type = NLA_UNSPEC},
+            [NL80211_BSS_INFORMATION_ELEMENTS] = {.type = NLA_UNSPEC},
+            [NL80211_BSS_SIGNAL_MBM] = {.type = NLA_U32},
+            [NL80211_BSS_SIGNAL_UNSPEC] = {.type = NLA_U8},
+            [NL80211_BSS_STATUS] = {.type = NLA_U32},
+    };
+
+    if (nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), genlmsg_attrlen(gnlh, 0), NULL) < 0)
+        return NL_SKIP;
+
+    if (tb[NL80211_ATTR_BSS] == NULL)
+        return NL_SKIP;
+
+    if (nla_parse_nested(bss, NL80211_BSS_MAX, tb[NL80211_ATTR_BSS], bss_policy))
+        return NL_SKIP;
+
+    if (bss[NL80211_BSS_STATUS] == NULL)
+        return NL_SKIP;
+
+    const uint32_t status = nla_get_u32(bss[NL80211_BSS_STATUS]);
+
+    if (status != NL80211_BSS_STATUS_ASSOCIATED &&
+        status != NL80211_BSS_STATUS_IBSS_JOINED)
+        return NL_SKIP;
+
+    if (bss[NL80211_BSS_BSSID] == NULL)
+        return NL_SKIP;
+
+    memcpy(info->bssid, nla_data(bss[NL80211_BSS_BSSID]), ETH_ALEN);
+
+    if (bss[NL80211_BSS_FREQUENCY]) {
+        info->flags |= WIRELESS_INFO_FLAG_HAS_FREQUENCY;
+        info->frequency = (double)nla_get_u32(bss[NL80211_BSS_FREQUENCY]) * 1e6;
+    }
+
+    if (bss[NL80211_BSS_SIGNAL_UNSPEC]) {
+        info->flags |= WIRELESS_INFO_FLAG_HAS_SIGNAL;
+        info->signal_level = nla_get_u8(bss[NL80211_BSS_SIGNAL_UNSPEC]);
+        info->signal_level_max = 100;
+
+        info->flags |= WIRELESS_INFO_FLAG_HAS_QUALITY;
+        info->quality = info->signal_level;
+        info->quality_max = 100;
+        info->quality_average = 50;
+    }
+
+    if (bss[NL80211_BSS_SIGNAL_MBM]) {
+        info->flags |= WIRELESS_INFO_FLAG_HAS_SIGNAL;
+        info->signal_level = (int)nla_get_u32(bss[NL80211_BSS_SIGNAL_MBM]) / 100;
+
+        info->flags |= WIRELESS_INFO_FLAG_HAS_QUALITY;
+        info->quality = nl80211_xbm_to_percent(nla_get_u32(bss[NL80211_BSS_SIGNAL_MBM]), 100);
+        info->quality_max = 100;
+        info->quality_average = 50;
+    }
+
+    if (bss[NL80211_BSS_INFORMATION_ELEMENTS]) {
+        uint8_t *ssid;
+        uint32_t ssid_len;
+
+        find_ssid(nla_data(bss[NL80211_BSS_INFORMATION_ELEMENTS]),
+                  nla_len(bss[NL80211_BSS_INFORMATION_ELEMENTS]),
+                  &ssid, &ssid_len);
+        if (ssid && ssid_len) {
+            info->flags |= WIRELESS_INFO_FLAG_HAS_ESSID;
+            snprintf(info->essid, sizeof(info->essid), "%.*s", ssid_len, ssid);
+        }
+    }
+
+    return NL_SKIP;
+}
+
 static int get_wireless_info(const char *interface, wireless_info_t *info) {
-        memset(info, 0, sizeof(wireless_info_t));
+    memset(info, 0, sizeof(wireless_info_t));
 
 #ifdef LINUX
-        int skfd = iw_sockets_open();
-        if (skfd < 0) {
-                perror("iw_sockets_open");
-                return 0;
+    struct nl_sock *sk = nl_socket_alloc();
+    if (genl_connect(sk) != 0)
+        goto error1;
+
+    if (nl_socket_modify_cb(sk, NL_CB_VALID, NL_CB_CUSTOM, gwi_scan_cb, info) < 0)
+        goto error1;
+
+    const int nl80211_id = genl_ctrl_resolve(sk, "nl80211");
+    if (nl80211_id < 0)
+        goto error1;
+
+    const unsigned int ifidx = if_nametoindex(interface);
+    if (ifidx == 0)
+        goto error1;
+
+    struct nl_msg *msg = NULL;
+    if ((msg = nlmsg_alloc()) == NULL)
+        goto error1;
+
+    if (!genlmsg_put(msg, NL_AUTO_PORT, NL_AUTO_SEQ, nl80211_id, 0, NLM_F_DUMP, NL80211_CMD_GET_SCAN, 0) ||
+        nla_put_u32(msg, NL80211_ATTR_IFINDEX, ifidx) < 0)
+        goto error2;
+
+    if (nl_send_sync(sk, msg) < 0)
+        // nl_send_sync calls nlmsg_free()
+        goto error1;
+    msg = NULL;
+
+    if (nl_socket_modify_cb(sk, NL_CB_VALID, NL_CB_CUSTOM, gwi_sta_cb, info) < 0)
+        goto error1;
+
+    if ((msg = nlmsg_alloc()) == NULL)
+        goto error1;
+
+    if (!genlmsg_put(msg, NL_AUTO_PORT, NL_AUTO_SEQ, nl80211_id, 0, NLM_F_DUMP, NL80211_CMD_GET_STATION, 0) || nla_put_u32(msg, NL80211_ATTR_IFINDEX, ifidx) < 0 || nla_put(msg, NL80211_ATTR_MAC, 6, info->bssid) < 0)
+        goto error2;
+
+    if (nl_send_sync(sk, msg) < 0)
+        // nl_send_sync calls nlmsg_free()
+        goto error1;
+    msg = NULL;
+
+    nl_socket_free(sk);
+    return 1;
+
+error2:
+    nlmsg_free(msg);
+error1:
+    nl_socket_free(sk);
+    return 0;
+
+#endif
+#if defined(__FreeBSD__) || defined(__DragonFly__)
+    int s, inwid;
+    union {
+        struct ieee80211req_sta_req req;
+        uint8_t buf[24 * 1024];
+    } u;
+    struct ieee80211req na;
+    char bssid[IEEE80211_ADDR_LEN];
+    size_t len;
+
+    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_BSSID;
+    na.i_data = bssid;
+    na.i_len = sizeof(bssid);
+
+    if (ioctl(s, SIOCG80211, (caddr_t)&na) == -1) {
+        close(s);
+        return (0);
+    }
+
+    memcpy(u.req.is_u.macaddr, bssid, sizeof(bssid));
+    memset(&na, 0, sizeof(na));
+    strlcpy(na.i_name, interface, sizeof(na.i_name));
+    na.i_type = IEEE80211_IOC_STA_INFO;
+    na.i_data = &u;
+    na.i_len = sizeof(u);
+
+    if (ioctl(s, SIOCG80211, (caddr_t)&na) == -1) {
+        close(s);
+        return (0);
+    }
+
+    close(s);
+    if (na.i_len >= sizeof(u.req)) {
+        /*
+        * Just use the first BSSID returned even if there are
+        * multiple APs sharing the same BSSID.
+        */
+        info->signal_level = u.req.info[0].isi_rssi / 2 +
+                             u.req.info[0].isi_noise;
+        info->flags |= WIRELESS_INFO_FLAG_HAS_SIGNAL;
+        info->noise_level = u.req.info[0].isi_noise;
+        info->flags |= WIRELESS_INFO_FLAG_HAS_NOISE;
+    }
+
+    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) {
+                info->signal_level = nr.nr_rssi;
+                if (nr.nr_max_rssi)
+                    info->signal_level_max = nr.nr_max_rssi;
+
+                info->flags |= WIRELESS_INFO_FLAG_HAS_SIGNAL;
+            }
         }
+    }
+
+    close(s);
+    return 1;
+#endif
+    return 0;
+}
 
-        wireless_config wcfg;
-        if (iw_get_basic_config(skfd, interface, &wcfg) < 0) {
-            close(skfd);
-            return 0;
+void print_wireless_info(yajl_gen json_gen, char *buffer, const char *interface, const char *format_up, const char *format_down) {
+    const char *walk;
+    char *outwalk = buffer;
+    wireless_info_t info;
+
+    INSTANCE(interface);
+
+    const char *ip_address = get_ip_addr(interface);
+    if (ip_address == NULL) {
+        START_COLOR("color_bad");
+        outwalk += sprintf(outwalk, "%s", format_down);
+        goto out;
+    }
+
+    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
+            START_COLOR((BEGINS_WITH(ip_address, "no IP") ? "color_degraded" : "color_good"));
+    } else {
+        walk = format_down;
+        START_COLOR("color_bad");
+    }
+
+    for (; *walk != '\0'; walk++) {
+        if (*walk != '%') {
+            *(outwalk++) = *walk;
+            continue;
         }
 
-        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';
+        if (BEGINS_WITH(walk + 1, "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");
         }
 
-        /* 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;
+        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");
         }
 
-        iwstats stats;
-        if (iw_get_stats(skfd, interface, &stats, &range, 1) < 0) {
-                close(skfd);
-                return 0;
+        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 (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;
-                                }
-                        }
-                }
+        if (BEGINS_WITH(walk + 1, "essid")) {
+            if (info.flags & WIRELESS_INFO_FLAG_HAS_ESSID)
+                outwalk += sprintf(outwalk, "%s", info.essid);
+            else
+                *(outwalk++) = '?';
+            walk += strlen("essid");
         }
-        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;
-                }
+
+        if (BEGINS_WITH(walk + 1, "frequency")) {
+            if (info.flags & WIRELESS_INFO_FLAG_HAS_FREQUENCY)
+                outwalk += sprintf(outwalk, "%1.1f GHz", info.frequency / 1e9);
+            else
+                *(outwalk++) = '?';
+            walk += strlen("frequency");
         }
 
-        struct iwreq wrq;
-        if (iw_get_ext(skfd, interface, SIOCGIWRATE, &wrq) >= 0)
-                info->bitrate = wrq.u.bitrate.value;
+        if (BEGINS_WITH(walk + 1, "ip")) {
+            outwalk += sprintf(outwalk, "%s", ip_address);
+            walk += strlen("ip");
+        }
 
-        close(skfd);
-        return 1;
-#endif
-}
+#ifdef LINUX
+        if (BEGINS_WITH(walk + 1, "bitrate")) {
+            char br_buffer[128];
 
-void print_wireless_info(const char *interface, const char *format_up, const char *format_down) {
-        const char *walk;
-        wireless_info_t info;
-        if (get_wireless_info(interface, &info)) {
-                walk = format_up;
-                if (info.flags & WIRELESS_INFO_FLAG_HAS_QUALITY)
-                        printf("%s", info.quality < info.quality_average ? color("color_degraded") : color("color_good"));
-        }
-        else {
-                walk = format_down;
-                printf("%s", color("color_bad"));
-        }
+            print_bitrate(br_buffer, sizeof(br_buffer), info.bitrate);
 
-        for (; *walk != '\0'; walk++) {
-                if (*walk != '%') {
-                        putchar(*walk);
-                        continue;
-                }
-
-                if (BEGINS_WITH(walk+1, "quality")) {
-                        if (info.flags & WIRELESS_INFO_FLAG_HAS_QUALITY) {
-                                if (info.quality_max)
-                                        printf("%03d%%", PERCENT_VALUE(info.quality, info.quality_max));
-                                else
-                                        printf("%d", info.quality);
-                        }
-                        else {
-                                printf("no value");
-                        }
-                        walk += strlen("quality");
-                }
-
-                if (BEGINS_WITH(walk+1, "signal")) {
-                        if (info.flags & WIRELESS_INFO_FLAG_HAS_SIGNAL) {
-                                if (info.signal_level_max)
-                                        printf("%03d%%", PERCENT_VALUE(info.signal_level, info.signal_level_max));
-                                else
-                                        printf("%d dBm", info.signal_level);
-                        }
-                        else {
-                                printf("no value");
-                        }
-                        walk += strlen("signal");
-                }
-
-                if (BEGINS_WITH(walk+1, "noise")) {
-                        if (info.flags & WIRELESS_INFO_FLAG_HAS_NOISE) {
-                                if (info.noise_level_max)
-                                        printf("%03d%%", PERCENT_VALUE(info.noise_level, info.noise_level_max));
-                                else
-                                        printf("%d dBm", info.noise_level);
-                        }
-                        else {
-                                printf("no value");
-                        }
-                        walk += strlen("noise");
-                }
-
-                if (BEGINS_WITH(walk+1, "essid")) {
-                        if (info.flags & WIRELESS_INFO_FLAG_HAS_ESSID)
-                                printf("%s", info.essid);
-                        else
-                                printf("no value");
-                        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");
-                }
-
-                if (BEGINS_WITH(walk+1, "bitrate")) {
-                        char buffer[128];
-
-                        iw_print_bitrate(buffer, sizeof(buffer), info.bitrate);
-
-                        printf("%s", buffer);
-                        walk += strlen("bitrate");
-                }
+            outwalk += sprintf(outwalk, "%s", br_buffer);
+            walk += strlen("bitrate");
         }
+#endif
+    }
 
-        (void)printf("%s", endcolor());
+out:
+    END_COLOR;
+    OUTPUT_FULL_TEXT(buffer);
 }