diff options
Diffstat (limited to '')
| -rw-r--r-- | iw_if.h | 234 |
1 files changed, 65 insertions, 169 deletions
@@ -18,7 +18,9 @@ * Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include "wavemon.h" +#include "nl80211.h" #include <netdb.h> +#include <stdbool.h> #include <pthread.h> #include <arpa/inet.h> #include <netinet/in.h> @@ -33,22 +35,24 @@ #ifndef IW_POWER_SAVING #define IW_POWER_SAVING 0x4000 /* version 20 -> 21 */ #endif -#ifndef IW_MODE_MESH -#define IW_MODE_MESH 7 /* introduced in 2.6.26-rc1 */ -#endif -/* Maximum length of a MAC address: 2 * 6 hex digits, 6 - 1 colons, plus '\0' */ -#define MAC_ADDR_MAX 18 +/* Definitions from linux/ieee80211.h (not necessarily part of distro headers) */ +#define WLAN_CAPABILITY_ESS (1<<0) +#define WLAN_CAPABILITY_IBSS (1<<1) +#define WLAN_CAPABILITY_IS_STA_BSS(cap) \ + (!((cap) & (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS))) +#define WLAN_CAPABILITY_PRIVACY (1<<4) + +/* 802.11h */ +#define WLAN_CAPABILITY_SPECTRUM_MGMT (1<<8) +#define WLAN_CAPABILITY_QOS (1<<9) +#define WLAN_CAPABILITY_SHORT_SLOT_TIME (1<<10) +#define WLAN_CAPABILITY_APSD (1<<11) +#define WLAN_CAPABILITY_RADIO_MEASURE (1<<12) +#define WLAN_CAPABILITY_DSSS_OFDM (1<<13) +#define WLAN_CAPABILITY_DEL_BACK (1<<14) +#define WLAN_CAPABILITY_IMM_BACK (1<<15) -/* - * Threshold for 'sane' noise levels. - * - * Some drivers simply set an arbitrary minimum noise level to mean 'invalid', - * but do not set IW_QUAL_NOISE_INVALID so that the display gets stuck at a - * "house number". The value below is suggested by and taken from the iwl3945 - * driver (constant IWL_NOISE_MEAS_NOT_AVAILABLE in iwl-3945.h). - */ -#define NOISE_DBM_SANE_MIN -127 /** * struct if_info - wireless interface network information @@ -70,6 +74,7 @@ struct if_info { uint16_t txqlen; uint16_t flags; }; +extern bool if_is_up(const char *ifname); extern int if_set_up(const char *ifname); extern void if_getinf(const char *ifname, struct if_info *info); @@ -95,7 +100,6 @@ struct iw_key { * @essid: Extended Service Set ID (network name) * @essid_ct: index number of the @essid (starts at 1, 0 = off) * @nickname: optional station nickname - * @nwid: Network ID (pre-802.11 hardware only) * @ap_addr: BSSID or IBSSID * * @retry: MAC-retransmission retry behaviour @@ -118,7 +122,6 @@ struct iw_dyn_info { uint8_t mode; bool cap_essid:1, - cap_nwid:1, cap_nickname:1, cap_freq:1, cap_sens:1, @@ -134,7 +137,6 @@ struct iw_dyn_info { char essid[IW_ESSID_MAX_SIZE+2]; uint8_t essid_ct; char nickname[IW_ESSID_MAX_SIZE+2]; - struct iw_param nwid; struct sockaddr ap_addr; struct iw_param retry; @@ -202,28 +204,10 @@ struct iw_levelstat { #define IW_LSTAT_INIT { 0, 0, IW_QUAL_LEVEL_INVALID | IW_QUAL_NOISE_INVALID } extern void iw_getinf_range(const char *ifname, struct iw_range *range); -extern void iw_sanitize(struct iw_range *range, - struct iw_quality *qual, - struct iw_levelstat *dbm); - -/** - * struct iw_stat - record current WiFi state - * @range: current range information - * @stats: current signal level statistics - * @dbm: the noise/signal of @stats in dBm - */ -struct iw_stat { - struct iw_range range; - struct iw_statistics stat; - struct iw_levelstat dbm; -}; /* * Periodic sampling of wireless statistics via timer alarm */ -extern void iw_getstat(struct iw_stat *stat); -extern void iw_cache_update(struct iw_stat *stat); - extern void sampling_init(void (*sampling_handler)(int)); extern void sampling_do_poll(void); static inline void sampling_stop(void) { alarm(0); } @@ -233,27 +217,35 @@ static inline void sampling_stop(void) { alarm(0); } */ /** * struct scan_entry - Representation of a single scan result. - * @ap_addr: MAC address - * @essid: station SSID (may be empty) - * @mode: operation mode (type of station) - * @freq: frequency/channel information - * @chan: channel corresponding to @freq (where applicable) - * @qual: signal quality information - * @has_key: whether using encryption or not - * @flags: properties gathered from Information Elements - * @next: next entry in list + * @ap_addr: MAC address + * @essid: station SSID (may be empty) + * @freq: frequency in MHz + * @chan: channel corresponding to @freq (where applicable) + * @has_key: whether using encryption or not + * @last_seen: time station was last seen in seconds + * @tsf: value of the Timing Synchronisation Function counter + * @bss_signal: signal strength of BSS probe in dBm (or 0) + * @bss_signal_qual: unitless signal strength of BSS probe, 0..100 + * @bss_capa: BSS capability flags + * @bss_sta_count: BSS station count + * @bss_chan_usage: BSS channel utilisation + * @next: next entry in list */ struct scan_entry { struct ether_addr ap_addr; char essid[IW_ESSID_MAX_SIZE + 2]; - int mode; - double freq; + uint32_t freq; int chan; - struct iw_quality qual; - struct iw_levelstat dbm; + uint8_t has_key:1; - int has_key:1; - uint32_t flags; + uint32_t last_seen; + uint64_t tsf; + + int8_t bss_signal; + uint8_t bss_signal_qual; + uint16_t bss_capa; + uint8_t bss_sta_count, + bss_chan_usage; struct scan_entry *next; }; @@ -280,7 +272,6 @@ struct cnt { * @num.two_gig: number of 2.4GHz stations among @num.total * @num.five_gig: number of 5 GHz stations among @num.total * @num.ch_stats: length of @channel_stats array - * @range: range data associated with scan interface * @mutex: protects against concurrent consumer/producer access */ struct scan_result { @@ -297,7 +288,6 @@ struct scan_result { #define MAX_CH_STATS 3 size_t ch_stats; } num; - struct iw_range range; pthread_mutex_t mutex; }; @@ -306,125 +296,31 @@ extern void scan_result_fini(struct scan_result *sr); extern void *do_scan(void *sr_ptr); /* - * General helper routines + * utils.c */ -static inline const char *iw_opmode(const uint8_t mode) -{ - static char *modes[] = { - [IW_MODE_AUTO] = "Auto", - [IW_MODE_ADHOC] = "Ad-Hoc", - [IW_MODE_INFRA] = "Managed", - [IW_MODE_MASTER] = "Master", - [IW_MODE_REPEAT] = "Repeater", - [IW_MODE_SECOND] = "Secondary", - [IW_MODE_MONITOR] = "Monitor", - [IW_MODE_MESH] = "Mesh" - }; - - return mode < ARRAY_SIZE(modes) ? modes[mode] : "Unknown/bug"; -} - -/* Print a mac-address, include leading zeroes (unlike ether_ntoa(3)) */ -static inline char *ether_addr(const struct ether_addr *ea) -{ - static char mac[MAC_ADDR_MAX]; - char *d = mac, *a = ether_ntoa(ea); -next_chunk: - if (a[0] == '\0' || a[1] == '\0' || a[1] == ':') - *d++ = '0'; - while ((*d++ = conf.cisco_mac ? (*a == ':' ? '.' : *a) : toupper(*a))) - if (*a++ == ':') - goto next_chunk; - return mac; -} - -/* Print mac-address translation from /etc/ethers if available */ -static inline char *ether_lookup(const struct ether_addr *ea) -{ - static char hostname[BUFSIZ]; - - if (ether_ntohost(hostname, ea) == 0) - return hostname; - return ether_addr(ea); -} - -/* Format an Ethernet mac address */ -static inline char *mac_addr(const struct sockaddr *sa) -{ - if (sa->sa_family != ARPHRD_ETHER) - return "00:00:00:00:00:00"; - return ether_lookup((const struct ether_addr *)sa->sa_data); -} - -/* Format a (I)BSSID */ -static inline char *format_bssid(const struct sockaddr *ap) -{ - uint8_t bcast_addr[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; - uint8_t zero_addr[ETH_ALEN] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; - - if (memcmp(ap->sa_data, zero_addr, ETH_ALEN) == 0) - return "Not-Associated"; - if (memcmp(ap->sa_data, bcast_addr, ETH_ALEN) == 0) - return "Invalid"; - return mac_addr(ap); -} - -/* count bits set in @mask the Brian Kernighan way */ -static inline uint8_t bit_count(uint32_t mask) -{ - uint8_t bits_set; - - for (bits_set = 0; mask; bits_set++) - mask &= mask - 1; - - return bits_set; -} - -/* netmask = contiguous 1's followed by contiguous 0's */ -static inline uint8_t prefix_len(const struct in_addr *netmask) -{ - return bit_count(netmask->s_addr); -} - -/* Absolute power measurement in dBm (IW_QUAL_DBM): map into -192 .. 63 range */ -static inline int u8_to_dbm(const int power) -{ - return power > 63 ? power - 0x100 : power; -} -static inline uint8_t dbm_to_u8(const int dbm) -{ - return dbm < 0 ? dbm + 0x100 : dbm; -} - -/* Convert log dBm values to linear mW */ -static inline double dbm2mw(const double in) -{ - return pow(10.0, in / 10.0); -} - -static inline char *dbm2units(const double in) -{ - static char with_units[0x100]; - double val = dbm2mw(in); - - if (val < 0.00000001) { - sprintf(with_units, "%.2f pW", val * 1e9); - } else if (val < 0.00001) { - sprintf(with_units, "%.2f nW", val * 1e6); - } else if (val < 0.01) { - sprintf(with_units, "%.2f uW", val * 1e3); - } else { - sprintf(with_units, "%.2f mW", val); - } - return with_units; -} - -/* Convert linear mW values to log dBm */ -static inline double mw2dbm(const double in) -{ - return 10.0 * log10(in); -} +extern char *ether_addr(const struct ether_addr *ea); +extern char *ether_lookup(const struct ether_addr *ea); +extern char *mac_addr(const struct sockaddr *sa); +extern char *format_bssid(const struct sockaddr *ap); +extern uint8_t bit_count(uint32_t mask); +extern uint8_t prefix_len(const struct in_addr *netmask); +extern const char *pretty_time(const unsigned sec); +extern const char *pretty_time_ms(const unsigned msec); +extern int u8_to_dbm(const int power); +extern uint8_t dbm_to_u8(const int dbm); +extern double dbm2mw(const double in); +extern char *dbm2units(const double in); +extern double mw2dbm(const double in); + +extern const char *dfs_domain_name(enum nl80211_dfs_regions region); +extern int ieee80211_frequency_to_channel(int freq); +extern const char *channel_width_name(enum nl80211_chan_width width); +extern const char *channel_type_name(enum nl80211_channel_type channel_type); +extern const char *iftype_name(enum nl80211_iftype iftype); +/* + * WEXT helper routines + */ /* Format driver TX power information */ static inline char *format_txpower(const struct iw_param *txpwr) { |