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Fri, Jul 4, 02:27

wifi.h
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/*
* <clicknet/wifi.h> - 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;
uint16_t flags;
uint16_t channel;
uint8_t rssi;
uint8_t silence;
uint8_t power;
uint8_t pad;
uint8_t rate; /* bitrate in Mbps*2 */
/*
* Julien: I've modified radiotapdecap.cc to contain MCS fields in rate1,2,3
*/
uint8_t rate1; /* bitrate in Mbps*2 */
uint8_t rate2; /* bitrate in Mbps*2 */
uint8_t rate3; /* bitrate in Mbps*2 */ //MCS index
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_ */

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