diff options
| author | sam <sam@FreeBSD.org> | 2003-09-15 19:36:34 +0000 |
|---|---|---|
| committer | sam <sam@FreeBSD.org> | 2003-09-15 19:36:34 +0000 |
| commit | 36064095128b1d6040da3311a636da14b6ea2158 (patch) | |
| tree | 5ff8e6a394358211b7d6812fcfc12291e00f26c9 | |
| parent | 958e5bbfa22c480d5e3e0844684a06f425a18771 (diff) | |
| download | FreeBSD-src-36064095128b1d6040da3311a636da14b6ea2158.zip FreeBSD-src-36064095128b1d6040da3311a636da14b6ea2158.tar.gz | |
add definitions for various control frames and a minimum-sized frame that
we use to define IEEE80211_MIN_LEN; the minimal length for frames drivers
may pass up into the 802.11 layer
| -rw-r--r-- | sys/net80211/ieee80211.h | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/sys/net80211/ieee80211.h b/sys/net80211/ieee80211.h index d917210..7ad6231 100644 --- a/sys/net80211/ieee80211.h +++ b/sys/net80211/ieee80211.h @@ -136,6 +136,55 @@ struct ieee80211_frame_addr4 { #define IEEE80211_NWID_LEN 32 /* + * Control frames. + */ +struct ieee80211_frame_min { + u_int8_t i_fc[2]; + u_int8_t i_dur[2]; + u_int8_t i_addr1[IEEE80211_ADDR_LEN]; + u_int8_t i_addr2[IEEE80211_ADDR_LEN]; + /* FCS */ +} __attribute__((__packed__)); + +struct ieee80211_frame_rts { + u_int8_t i_fc[2]; + u_int8_t i_dur[2]; + u_int8_t i_ra[IEEE80211_ADDR_LEN]; + u_int8_t i_ta[IEEE80211_ADDR_LEN]; + /* FCS */ +} __attribute__((__packed__)); + +struct ieee80211_frame_cts { + u_int8_t i_fc[2]; + u_int8_t i_dur[2]; + u_int8_t i_ra[IEEE80211_ADDR_LEN]; + /* FCS */ +} __attribute__((__packed__)); + +struct ieee80211_frame_ack { + u_int8_t i_fc[2]; + u_int8_t i_dur[2]; + u_int8_t i_ra[IEEE80211_ADDR_LEN]; + /* FCS */ +} __attribute__((__packed__)); + +struct ieee80211_frame_pspoll { + u_int8_t i_fc[2]; + u_int8_t i_aid[2]; + u_int8_t i_bssid[IEEE80211_ADDR_LEN]; + u_int8_t i_ta[IEEE80211_ADDR_LEN]; + /* FCS */ +} __attribute__((__packed__)); + +struct ieee80211_frame_cfend { /* NB: also CF-End+CF-Ack */ + u_int8_t i_fc[2]; + u_int8_t i_dur[2]; /* should be zero */ + u_int8_t i_ra[IEEE80211_ADDR_LEN]; + u_int8_t i_bssid[IEEE80211_ADDR_LEN]; + /* FCS */ +} __attribute__((__packed__)); + +/* * BEACON management packets * * octet timestamp[8] @@ -314,6 +363,8 @@ enum { #define IEEE80211_MTU 1500 #define IEEE80211_MAX_LEN (2300 + IEEE80211_CRC_LEN + \ (IEEE80211_WEP_IVLEN + IEEE80211_WEP_KIDLEN + IEEE80211_WEP_CRCLEN)) +#define IEEE80211_MIN_LEN \ + (sizeof(struct ieee80211_frame_min) + IEEE80211_CRC_LEN) /* * RTS frame length parameters. The default is specified in |
