actube/src/cw/dot11.h

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#ifndef __DOT11_H
#define __DOT11_H
/**
* @file
* @brief Definitions and protoypes for 802.11
*
* @defgroup DOT11
* @{
*/
#include <stdint.h>
#include <string.h>
#include <sys/time.h>
#ifdef __FreeBSD__
#include <sys/endian.h>
#else
#include <endian.h>
#endif
/**
* @defgroup DOT11_FRAME_TYPES Frame Types
* @brief Definition of frame types
*
* @{
*/
/** Management Frame */
#define DOT11_T_MGM 0b00
/** Control Frame */
#define DOT11_T_CTL 0b01
/** Data Frame **/
#define DOT11_T_DTA 0b10
/** Reserved Frame Type */
#define DOT11_T_RES 0b11
/**
* @}
*/
#define dot11_fc_mgm(subtype) ((DOT11_T_MGM << 2) |( subtype<<4))
#define dot11_fc_dta(subtype) ((DOT11_T_DTA << 2) |( subtype<<4))
/**
* @defgroup DOT11_FRAMES Frame Controls
*
* @{
*/
#define DOT11_FC_ASSOC_REQ dot11_fc_mgm(0b0000)
#define DOT11_FC_ASSOC_RESP dot11_fc_mgm(0b0001)
#define DOT11_FC_REASSOC_REQ dot11_fc_mgm(0b0010)
#define DOT11_FC_REASSOC_RESP dot11_fc_mgm(0b0011)
#define DOT11_FC_PROBE_REQ dot11_fc_mgm(0b0100)
#define DOT11_FC_PROBE_RESP dot11_fc_mgm(0b0101)
#define DOT11_FC_TIMING_ADV dot11_fc_mgm(0b0110)
#define DOT11_FC_MGM_RES111 dot11_fc_mgm(0b0111)
#define DOT11_FC_BEACON dot11_fc_mgm(0b1000)
#define DOT11_FC_DATA dot11_fc_dta(0b0000)
/**
* @}
*/
/**
* @defgroup DOT11_FC_FLAGS Frame Control Flags
* @{
*/
#define DOT11_FC_FLAG_TO_DS 0x100
#define DOT11_FC_FLAG_FROM_DS 0x200
#define DOT11_FC_FLAG_MOREFRAGS 0x400
#define DOT11_FC_FLAG_RETRY 0x800
#define DOT11_FC_FLAG_POWERMGMT 0x1000
#define DOT11_FC_FLAG_MOREDATA 0x2000
#define DOT11_FC_FLAG_PROTECTED 0x4000
#define DOT11_FC_FLAG_ORDER 0x8000
/**
* @}
*/
/**
* @defgroup DOT11_CAP_FLAGS Capability Flags
* @brief Flags used in the capability field.
* @{
*/
#define DOT11_CAP_ESS 0x0001
#define DOT11_CAP_IBSS 0x0002
#define DOT11_CAP_CF_POLLABLE 0x0004
#define DOT11_CAP_CF_POLL_REQ 0x0008
#define DOT11_CAP_PRIVACY 0x0010
#define DOT11_CAP_SHORT_PREAMBLE 0x0020
#define DOT11_CAP_PBCC 0x0040
#define DOT11_CAP_CHANNEL_AGILITY 0x0080
#define DOT11_CAP_SPEC_MGMT 0x0100
#define DOT11_CAP_QOS 0x0200
#define DOT11_CAP_SHORT_SLOT_TIME 0x0400
#define DOT11_CAP_APSD 0x0800
#define DOT11_CAP_RADIO_MEASURE 0x1000
#define DOT11_CAP_DSSS_ODFM 0x2000
#define DOT11_CAP_DELAYED_BLOCK_ACK 0x4000
#define DOT11_CAP_IMEDIATE_BLOCK_ACK 0x8000
/**
* @}
*/
/**
* @defgroup DOT11_ELEMS
* @{
*/
#define DOT11_ELEM_SSID 0
#define DOT11_ELEM_SUPPORTED_RATES 1
#define DOT11_ELEM_FH_PARAM_SET 2
#define DOT11_ELEM_DSSS_PARAM_SET 3
#define DOT11_ELEM_CF_PARAM_SET 4
/**
* @}
*/
extern const uint8_t dot11_tab_br[256];
#define dot11_get_byte(ptr) (*(ptr))
#define dot11_put_byte(ptr,b) (*(ptr) = b)
#define dot11_put_word(dst,v) ((*((uint16_t*)(dst))=htobe16(v)),2)
#define dot11_put_dword(dst,v) ((*((uint16_t*)(dst))=htobe16(v)),4)
#define dot11_put_qword(dst,v) ((*((uint64_t*)(dst))=htobe64(v)),8)
uint16_t dot11_get_word(uint8_t * ptr);
#define dot11_get_version(frame) ((frame[1])&0x03)
#define dot11_get_type(frame) (((frame[1])&0x0c) >> 2)
#define dot11_get_subtype(frame) (((frame[1])&0xf0) >> 4)
/**
* Get Frame Control field
* @param frame
* @return Frame Control field
*/
#define dot11_get_fc(frame) dot11_get_word(frame)
#define dot11_get_duration(frame) dot11_get_word(frame+2)
void dot11_get_address(uint8_t * dst, uint8_t * frame);
#define dot11_get_address1(dst,frame) dot11_get_address(dst,frame+4)
#define dot11_get_address2(dst,frame) dot11_get_address(dst,frame+4+1*6)
#define dot11_get_address3(dst,frame) dot11_get_address(dst,frame+4+2*6)
#define dot11_get_sequence_control(frame) dot11_get_word(frame+22)
#define dot11_fc_get_version(fc) ((fc)&0x3)
#define dot11_fc_get_type(fc) (((fc)&0x0c)>>2)
#define dot11_fc_get_subtype(fc) (((fc)&0xf0)>>4)
#define dot11_fc_get_from_ds(fc) (fc&DOT11_FC_FLAG_FROM_DS?1:0)
#define dot11_fc_get_to_ds(fc) (fc&DOT11_FC_FLAG_TO_DS?1:0)
#define dot11_fc_get_more_fragments(fc) (fc&DOT11_FC_FLAG_MOREFRAGS?1:0)
#define dot11_fc_put_frame_control(dst,fc) dot11_put_word(dst,fc)
int dot11_put_frame_control(uint8_t * dst, int fctype, int flags);
/**
* @defgroup DOT11_TIMER Timer
* @{
*/
extern uint64_t dot11_timer_offset;
uint64_t dot11_timer_get();
void dot11_timer_set(uint64_t val);
/**
* @}
*/
/**
* Put a timestamp field
* @param dst Destination
* @return number of bytes
*
* The timestamp value is taken from the value returned by #dot11_timer_get.
*/
#define dot11_put_timestamp(dst) (dot11_put_qword(dst,dot11_timer_get()))
#define dot11_put_beacon_interval(dst,v) (dot11_put_word(dst,v))
#define dot11_put_duration(dst,v) (dot11_put_word(dst,v))
#define dot11_put_address(dst,addr) (memcpy(dst,addr,6),6)
#define dot11_put_sequence_control(dst,v) (dot11_put_word(dst,v))
#define dot11_put_capability(dst,v) dot11_put_word(dst,v)
int dot11_put_ssid(uint8_t *dst,uint8_t * ssid,int len);
/**
* Convert a rate, specified as float to an inzteger, used
* in a dot11 rate set.
* @parame frate Rate as float
* @return converted rate
*/
#define dot11_float2rate(frate) ((int)(((frate)+0.49)*2.0))
/**
* Convert a rate as used in a dot11 rate set to a float
* @param rate Rate
* @return rate converted to float
*/
#define dot11_rate2float(rate) (((float)(rate))/2.0)
int dot11_put_supported_rates(uint8_t *dst, float *basic, float *rates);
int dot11_put_dsss_param_set(uint8_t *dst,int ch);
extern int dot11_create_beacon(uint8_t *dst);
extern uint8_t dot11_broadcast_address[6];
#define DOT11_BROADCAST_ADDRESS (dot11_broadcast_address)
/**
* @}
*/
#endif