/* * - contains the definitions for 802.11 frames. * It was originally taken from freebsd and modified for click use. * John Bicket */ /* $NetBSD: if_ieee80211.h,v 1.5 2000/07/21 04:47:40 onoe Exp $ */ /* $FreeBSD: src/sys/net/if_ieee80211.h,v 1.3.2.3 2001/07/04 00:12:38 brooks Exp $ */ #ifndef _CLICKNET_WIFI_H_ #define _CLICKNET_WIFI_H_ #define WIFI_EXTRA_MAGIC 0x7492001 enum { WIFI_EXTRA_TX = (1<<0), /* packet transmission */ WIFI_EXTRA_TX_FAIL = (1<<1), /* transmission failed */ WIFI_EXTRA_TX_USED_ALT_RATE = (1<<2), /* used alternate bitrate */ WIFI_EXTRA_RX_ERR = (1<<3), /* failed crc check */ WIFI_EXTRA_RX_MORE = (1<<4), /* first part of a fragmented skb */ WIFI_EXTRA_NO_SEQ = (1<<5), WIFI_EXTRA_NO_TXF = (1<<6), WIFI_EXTRA_DO_RTS_CTS = (1<<7), WIFI_EXTRA_DO_CTS = (1<<8), WIFI_EXTRA_TX_NOACK = (1<<9) }; struct click_wifi_extra { uint32_t magic; uint32_t flags; uint8_t rssi; uint8_t silence; uint8_t power; uint8_t pad; uint8_t rate; /* bitrate in Mbps*2 */ uint8_t rate1; /* bitrate in Mbps*2 */ uint8_t rate2; /* bitrate in Mbps*2 */ uint8_t rate3; /* bitrate in Mbps*2 */ uint8_t max_tries; uint8_t max_tries1; uint8_t max_tries2; uint8_t max_tries3; uint8_t virt_col; uint8_t retries; uint16_t len; } CLICK_SIZE_PACKED_ATTRIBUTE; /* * generic definitions for IEEE 802.11 frames */ #define WIFI_ADDR_LEN 6 struct click_wifi { uint8_t i_fc[2]; uint16_t i_dur; uint8_t i_addr1[WIFI_ADDR_LEN]; uint8_t i_addr2[WIFI_ADDR_LEN]; uint8_t i_addr3[WIFI_ADDR_LEN]; uint16_t i_seq; } CLICK_SIZE_PACKED_ATTRIBUTE; #define WIFI_FC0_VERSION_MASK 0x03 #define WIFI_FC0_VERSION_0 0x00 #define WIFI_FC0_TYPE_MASK 0x0c #define WIFI_FC0_TYPE_MGT 0x00 #define WIFI_FC0_TYPE_CTL 0x04 #define WIFI_FC0_TYPE_DATA 0x08 #define WIFI_FC0_SUBTYPE_MASK 0xf0 /* for TYPE_MGT */ #define WIFI_FC0_SUBTYPE_ASSOC_REQ 0x00 #define WIFI_FC0_SUBTYPE_ASSOC_RESP 0x10 #define WIFI_FC0_SUBTYPE_REASSOC_REQ 0x20 #define WIFI_FC0_SUBTYPE_REASSOC_RESP 0x30 #define WIFI_FC0_SUBTYPE_PROBE_REQ 0x40 #define WIFI_FC0_SUBTYPE_PROBE_RESP 0x50 #define WIFI_FC0_SUBTYPE_BEACON 0x80 #define WIFI_FC0_SUBTYPE_ATIM 0x90 #define WIFI_FC0_SUBTYPE_DISASSOC 0xa0 #define WIFI_FC0_SUBTYPE_AUTH 0xb0 #define WIFI_FC0_SUBTYPE_DEAUTH 0xc0 /* for TYPE_CTL */ #define WIFI_FC0_SUBTYPE_PS_POLL 0xa0 #define WIFI_FC0_SUBTYPE_RTS 0xb0 #define WIFI_FC0_SUBTYPE_CTS 0xc0 #define WIFI_FC0_SUBTYPE_ACK 0xd0 #define WIFI_FC0_SUBTYPE_CF_END 0xe0 #define WIFI_FC0_SUBTYPE_CF_END_ACK 0xf0 /* for TYPE_DATA (bit combination) */ #define WIFI_FC0_SUBTYPE_DATA 0x00 #define WIFI_FC0_SUBTYPE_CF_ACK 0x10 #define WIFI_FC0_SUBTYPE_CF_POLL 0x20 #define WIFI_FC0_SUBTYPE_CF_ACPL 0x30 #define WIFI_FC0_SUBTYPE_NODATA 0x40 #define WIFI_FC0_SUBTYPE_CFACK 0x50 #define WIFI_FC0_SUBTYPE_CFPOLL 0x60 #define WIFI_FC0_SUBTYPE_CF_ACK_CF_ACK 0x70 #define WIFI_FC0_SUBTYPE_QOS 0x80 #define WIFI_FC0_SUBTYPE_QOS_NULL 0xc0 #define WIFI_FC1_DIR_MASK 0x03 #define WIFI_FC1_DIR_NODS 0x00 /* STA->STA */ #define WIFI_FC1_DIR_TODS 0x01 /* STA->AP */ #define WIFI_FC1_DIR_FROMDS 0x02 /* AP ->STA */ #define WIFI_FC1_DIR_DSTODS 0x03 /* AP ->AP */ #define WIFI_FC1_MORE_FRAG 0x04 #define WIFI_FC1_RETRY 0x08 #define WIFI_FC1_PWR_MGT 0x10 #define WIFI_FC1_MORE_DATA 0x20 #define WIFI_FC1_WEP 0x40 #define WIFI_FC1_ORDER 0x80 #define WIFI_NWID_LEN 32 /* * BEACON management packets * * octect timestamp[8] * octect beacon interval[2] * octect capability information[2] * information element * octect elemid * octect length * octect information[length] */ typedef uint8_t * wifi_mgt_beacon_t; #define WIFI_BEACON_INTERVAL(beacon) \ (beacon[8] + (beacon[9] << 8)) #define WIFI_BEACON_CAPABILITY(beacon) \ (beacon[10] + (beacon[11] << 8)) #define WIFI_CAPINFO_ESS 0x01 #define WIFI_CAPINFO_IBSS 0x02 #define WIFI_CAPINFO_CF_POLLABLE 0x04 #define WIFI_CAPINFO_CF_POLLREQ 0x08 #define WIFI_CAPINFO_PRIVACY 0x10 #define WIFI_MAX_RETRIES 11 #define WIFI_QOS_HAS_SEQ(wh) \ (((wh)->i_fc[0] & \ (WIFI_FC0_TYPE_MASK | WIFI_FC0_SUBTYPE_QOS)) == \ (WIFI_FC0_TYPE_DATA | WIFI_FC0_SUBTYPE_QOS)) /* * Management information elements */ struct wifi_information { char ssid[WIFI_NWID_LEN+1]; struct rates { uint8_t *p; } rates; struct fh { uint16_t dwell; uint8_t set; uint8_t pattern; uint8_t index; } fh; struct ds { uint8_t channel; } ds; struct cf { uint8_t count; uint8_t period; uint8_t maxdur[2]; uint8_t dur[2]; } cf; struct tim { uint8_t count; uint8_t period; uint8_t bitctl; /* uint8_t pvt[251]; The driver never needs to use this */ } tim; struct ibss { uint16_t atim; } ibss; struct challenge { uint8_t *p; uint8_t len; } challenge; }; #define WIFI_RATES_MAXSIZE 15 #define WIFI_NWID_MAXSIZE 32 enum { WIFI_ELEMID_SSID = 0, WIFI_ELEMID_RATES = 1, WIFI_ELEMID_FHPARMS = 2, WIFI_ELEMID_DSPARMS = 3, WIFI_ELEMID_CFPARMS = 4, WIFI_ELEMID_TIM = 5, WIFI_ELEMID_IBSSPARMS = 6, WIFI_ELEMID_CHALLENGE = 16, WIFI_ELEMID_ERP = 42, WIFI_ELEMID_XRATES = 50, WIFI_ELEMID_VENDOR = 221 }; /* * AUTH management packets * * octect algo[2] * octect seq[2] * octect status[2] * octect chal.id * octect chal.length * octect chal.text[253] */ typedef uint8_t * wifi_mgt_auth_t; #define WIFI_AUTH_ALGORITHM(auth) \ (auth[0] + (auth[1] << 8)) #define WIFI_AUTH_TRANSACTION(auth) \ (auth[2] + (auth[3] << 8)) #define WIFI_AUTH_STATUS(auth) \ (auth[4] + (auth[5] << 8)) #define WIFI_AUTH_ALG_OPEN 0x0000 #define WIFI_AUTH_ALG_SHARED 0x0001 #define WIFI_AUTH_OPEN_REQUEST 1 #define WIFI_AUTH_OPEN_RESPONSE 2 #define WIFI_AUTH_SHARED_REQUEST 1 #define WIFI_AUTH_SHARED_CHALLENGE 2 #define WIFI_AUTH_SHARED_RESPONSE 3 #define WIFI_AUTH_SHARED_PASS 4 /* * Reason codes * * Unlisted codes are reserved */ #define WIFI_REASON_UNSPECIFIED 1 #define WIFI_REASON_AUTH_EXPIRE 2 #define WIFI_REASON_AUTH_LEAVE 3 #define WIFI_REASON_ASSOC_EXPIRE 4 #define WIFI_REASON_ASSOC_TOOMANY 5 #define WIFI_REASON_NOT_AUTHED 6 #define WIFI_REASON_NOT_ASSOCED 7 #define WIFI_REASON_ASSOC_LEAVE 8 #define WIFI_REASON_ASSOC_NOT_AUTHED 9 /* * Status code * * Unlisted codes are reserved */ #define WIFI_STATUS_SUCCESS 0x0000 #define WIFI_STATUS_UNSPECIFIED 1 #define WIFI_STATUS_CAPINFO 10 #define WIFI_STATUS_NOT_ASSOCED 11 #define WIFI_STATUS_OTHER 12 #define WIFI_STATUS_ALG 13 #define WIFI_STATUS_SEQUENCE 14 #define WIFI_STATUS_CHALLENGE 15 #define WIFI_STATUS_TIMEOUT 16 #define WIFI_STATUS_BASIC_RATES 18 #define WIFI_STATUS_TOO_MANY_STATIONS 22 #define WIFI_STATUS_RATES 23 #define WIFI_STATUS_SHORTSLOT_REQUIRED 25 #define WIFI_WEP_KEYLEN 5 /* 40bit */ #define WIFI_WEP_IVLEN 3 /* 24bit */ #define WIFI_WEP_KIDLEN 1 /* 1 octet */ #define WIFI_WEP_CRCLEN 4 /* CRC-32 */ #define WIFI_WEP_NKID 4 /* number of key ids */ #define WIFI_WEP_HEADERSIZE (WIFI_WEP_IVLEN + WIFI_WEP_KIDLEN) #define WIFI_WEP_NOSUP -1 #define WIFI_WEP_OFF 0 #define WIFI_WEP_ON 1 #define WIFI_WEP_MIXED 2 #define WIFI_AUTH_NONE 0 #define WIFI_AUTH_OPEN 1 #define WIFI_AUTH_SHARED 2 #define WIFI_POWERSAVE_NOSUP -1 #define WIFI_POWERSAVE_OFF 0 #define WIFI_POWERSAVE_CAM 1 #define WIFI_POWERSAVE_PSP 2 #define WIFI_POWERSAVE_PSP_CAM 3 #define WIFI_POWERSAVE_ON WIFI_POWERSAVE_CAM #define WIFI_RATE_BASIC 0x80 #define WIFI_RATE_VAL 0x7f #define WIFI_RATE_SIZE 0x08 #define WIFI_SEQ_FRAG_MASK 0x000f #define WIFI_SEQ_FRAG_SHIFT 0 #define WIFI_SEQ_SEQ_MASK 0xfff0 #define WIFI_SEQ_SEQ_SHIFT 4 /* * 802.11 protocol crypto-related definitions. */ #define WIFI_KEYBUF_SIZE 16 #define WIFI_MICBUF_SIZE (8+8) /* space for both tx+rx keys */ #ifndef WIFI_MAX #define WIFI_MAX(a, b) ((a) > (b) ? (a) : (b)) #endif #ifndef WIFI_MIN #define WIFI_MIN(a, b) ((a) < (b) ? (a) : (b)) #endif /* ARPHRD_IEEE80211_PRISM uses a bloated version of Prism2 RX frame header * (from linux-wlan-ng) */ /* * For packet capture, define the same physical layer packet header * structure as used in the wlan-ng driver */ enum { DIDmsg_lnxind_wlansniffrm = 0x00000044, DIDmsg_lnxind_wlansniffrm_hosttime = 0x00010044, DIDmsg_lnxind_wlansniffrm_mactime = 0x00020044, DIDmsg_lnxind_wlansniffrm_channel = 0x00030044, DIDmsg_lnxind_wlansniffrm_rssi = 0x00040044, DIDmsg_lnxind_wlansniffrm_sq = 0x00050044, DIDmsg_lnxind_wlansniffrm_signal = 0x00060044, DIDmsg_lnxind_wlansniffrm_noise = 0x00070044, DIDmsg_lnxind_wlansniffrm_rate = 0x00080044, DIDmsg_lnxind_wlansniffrm_istx = 0x00090044, DIDmsg_lnxind_wlansniffrm_frmlen = 0x000A0044 }; enum { P80211ENUM_msgitem_status_no_value = 0x00 }; enum { P80211ENUM_truth_false = 0x00 }; typedef struct { uint32_t did; uint16_t status; uint16_t len; uint32_t data; } p80211item_uint32_t; typedef struct { uint32_t msgcode; uint32_t msglen; #define WLAN_DEVNAMELEN_MAX 16 uint8_t devname[WLAN_DEVNAMELEN_MAX]; p80211item_uint32_t hosttime; p80211item_uint32_t mactime; p80211item_uint32_t channel; p80211item_uint32_t rssi; p80211item_uint32_t sq; p80211item_uint32_t signal; p80211item_uint32_t noise; p80211item_uint32_t rate; p80211item_uint32_t istx; p80211item_uint32_t frmlen; } wlan_ng_prism2_header; #define LWNG_CAP_DID_BASE (4 | (1 << 6)) /* section 4, group 1 */ #define LWNG_CAPHDR_VERSION 0x80211001 #define WIFI_SLOT_B 20 #define WIFI_DIFS_B 50 #define WIFI_SIFS_B 10 #define WIFI_ACK_B 304 #define WIFI_PLCP_HEADER_LONG_B 192 #define WIFI_PLCP_HEADER_SHORT_B 192 #define WIFI_SLOT_A 9 #define WIFI_DIFS_A 28 #define WIFI_SIFS_A 9 #define WIFI_ACK_A 30 #define WIFI_PLCP_HEADER_A 20 #define is_b_rate(b) ((b == 2) || (b == 4) || (b == 11) || (b == 22)) #define WIFI_CW_MIN 31 #define WIFI_CW_MAX 1023 // 6-byte LLC header (last byte is terminating NUL) #define WIFI_LLC_HEADER ((const uint8_t *) "\xAA\xAA\x03\x00\x00") #define WIFI_LLC_HEADER_LEN 6 #endif /* !_CLICKNET_WIFI_H_ */