diff options
Diffstat (limited to 'components')
| -rw-r--r-- | components/wifi.c | 98 |
1 files changed, 95 insertions, 3 deletions
diff --git a/components/wifi.c b/components/wifi.c index 8863252..d99c46c 100644 --- a/components/wifi.c +++ b/components/wifi.c @@ -8,6 +8,11 @@ #include "../util.h" +#define RSSI_TO_PERC(rssi) \ + rssi >= -50 ? 100 : \ + (rssi <= -100 ? 0 : \ + (2 * (rssi + 100))) + #if defined(__linux__) #include <limits.h> #include <linux/wireless.h> @@ -150,9 +155,7 @@ if (nr.nr_max_rssi) { q = IEEE80211_NODEREQ_RSSI(&nr); } else { - q = nr.nr_rssi >= -50 ? 100 : - (nr.nr_rssi <= -100 ? 0 : - (2 * (nr.nr_rssi + 100))); + q = RSSI_TO_PERC(nr.nr_rssi); } return bprintf("%d", q); } @@ -171,4 +174,93 @@ return NULL; } +#elif defined(__FreeBSD__) + #include <net/if.h> + #include <net80211/ieee80211_ioctl.h> + + int + load_ieee80211req(int sock, const char *interface, void *data, int type, size_t *len) + { + char warn_buf[256]; + struct ieee80211req ireq; + memset(&ireq, 0, sizeof(ireq)); + ireq.i_type = type; + ireq.i_data = (caddr_t) data; + ireq.i_len = *len; + + strlcpy(ireq.i_name, interface, sizeof(ireq.i_name)); + if (ioctl(sock, SIOCG80211, &ireq) < 0) { + snprintf(warn_buf, sizeof(warn_buf), + "ioctl: 'SIOCG80211': %d", type); + warn(warn_buf); + return 0; + } + + *len = ireq.i_len; + return 1; + } + + const char * + wifi_perc(const char *interface) + { + union { + struct ieee80211req_sta_req sta; + uint8_t buf[24 * 1024]; + } info; + uint8_t bssid[IEEE80211_ADDR_LEN]; + int rssi_dbm; + int sockfd; + size_t len; + + if ((sockfd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) { + warn("socket 'AF_INET':"); + return 0; + } + + /* Retreive MAC address of interface */ + len = IEEE80211_ADDR_LEN; + if (load_ieee80211req(sockfd, interface, &bssid, IEEE80211_IOC_BSSID, &len)) + { + /* Retrieve info on station with above BSSID */ + memset(&info, 0, sizeof(info)); + memcpy(info.sta.is_u.macaddr, bssid, sizeof(bssid)); + + len = sizeof(info); + if (load_ieee80211req(sockfd, interface, &info, IEEE80211_IOC_STA_INFO, &len)) { + rssi_dbm = info.sta.info[0].isi_noise + + info.sta.info[0].isi_rssi / 2; + return bprintf("%d", RSSI_TO_PERC(rssi_dbm)); + } + } + + close(sockfd); + return NULL; + } + + const char * + wifi_essid(const char *interface) + { + char ssid[IEEE80211_NWID_LEN + 1]; + size_t len; + int sockfd; + + if ((sockfd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) { + warn("socket 'AF_INET':"); + return 0; + } + + len = sizeof(ssid); + memset(&ssid, 0, len); + if (load_ieee80211req(sockfd, interface, &ssid, IEEE80211_IOC_SSID, &len )) { + if (len < sizeof(ssid)) + len += 1; + else + len = sizeof(ssid); + + ssid[len - 1] = '\0'; + return bprintf("%s", ssid); + } + + return NULL; + } #endif |