175 lines
3.9 KiB
C
175 lines
3.9 KiB
C
// returns pointers pOutStr
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TCHAR *DecodeIRDA(int *pFrameType,// return frame type (-1 = bad frame)
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BYTE *pFrameBuf, // pointer to buffer containing IRLAP frame
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UINT FrameLen, // length of buffer
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TCHAR *pOutStr, // string where decode packet is placed
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UINT DecodeLayer,// 2-LAP only, 3-LAP/LMP, 4-LAP/LMP/TTP
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BOOL fNoConnAddr,// TRUE->Don't show connection address in str
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int DispMode // DISP_ASCII/HEX/BOTH
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);
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#define DISP_ASCII 1
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#define DISP_HEX 2
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#define DISP_BOTH 3
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extern int BaudBitMask;
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#define IRLAP_BOF 0xC0
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#define IRLAP_EOF 0xC1
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#define IRLAP_ESC 0x7D
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#define IRLAP_COMP_BIT 0x20
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#define IRLAP_BROADCAST 0xfe
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#define _IRLAP_CMD 0x01
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#define _IRLAP_RSP 0x00
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#define IRLAP_I_FRM 0x00
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#define IRLAP_S_FRM 0x01
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#define IRLAP_U_FRM 0x03
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/*
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** Unnumbered Frame types with P/F bit set to 0
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*/
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#define IRLAP_UI 0x03
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#define IRLAP_XID_CMD 0x2f
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#define IRLAP_TEST 0xe3
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#define IRLAP_SNRM 0x83
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#define IRLAP_DISC 0x43
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#define IRLAP_UA 0x63
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#define IRLAP_FRMR 0x87
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#define IRLAP_DM 0x0f
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#define IRLAP_XID_RSP 0xaf
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/*
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** Supervisory Frames
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*/
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#define IRLAP_RR 0x01
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#define IRLAP_RNR 0x05
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#define IRLAP_REJ 0x09
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#define IRLAP_SREJ 0x0d
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#define IRLAP_GET_ADDR(addr) (addr >> 1)
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#define IRLAP_GET_CRBIT(addr) (addr & 1)
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#define IRLAP_GET_PFBIT(cntl) ((cntl >>4) & 1)
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#define IRLAP_GET_UCNTL(cntl) (cntl & 0xEF)
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#define IRLAP_GET_SCNTL(cntl) (cntl & 0x0F)
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#define IRLAP_FRAME_TYPE(cntl) (cntl & 0x01 ? (cntl & 3) : 0)
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#define IRLAP_GET_NR(cntl) ((cntl & 0xE0) >> 5)
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#define IRLAP_GET_NS(cntl) ((cntl & 0xE) >> 1)
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/*
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** XID stuff
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*/
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#define XID_DISCV_FORMAT_ID 0x01
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#define XID_NEGPARMS_FORMAT_ID 0x02
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typedef struct
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{
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BYTE SrcAddr[4];
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BYTE DestAddr[4];
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BYTE NoOfSlots:2;
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BYTE GenNewAddr:1;
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BYTE Reserved:5;
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BYTE SlotNo;
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BYTE Version;
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} XID_DISCV_FORMAT;
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/*
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** SNRM
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*/
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typedef struct
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{
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BYTE SrcAddr[4];
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BYTE DestAddr[4];
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BYTE ConnAddr;
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BYTE FirstPI;
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} SNRM_FORMAT;
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/*
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** UA
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*/
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typedef struct
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{
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BYTE SrcAddr[4];
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BYTE DestAddr[4];
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BYTE FirstPI;
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} UA_FORMAT;
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/*
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** LM-PDU stuff
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*/
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typedef struct
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{
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BYTE DLSAP_SEL:7;
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BYTE CntlBit:1;
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BYTE SLSAP_SEL:7;
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BYTE RsvrdBi1:1;
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} LM_HEADER;
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/* LM-PDU frame types */
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#define LM_PDU_CNTL_FRAME 1
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#define LM_PDU_DATA_FRAME 0
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typedef struct
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{
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BYTE OpCode:7;
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BYTE ABit:1;
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} LM_CNTL_FORMAT;
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/* Opcodes */
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#define LM_PDU_CONNECT 1
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#define LM_PDU_DISCONNECT 2
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#define LM_PDU_ACCESSMODE 3
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#define LM_PDU_REQUEST 0
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#define LM_PDU_CONFIRM 1
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#define LM_PDU_SUCCESS 0
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#define LM_PDU_FAILURE 1
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#define LM_PDU_UNSUPPORTED 0xFF
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#define LM_PDU_MULTIPLEXED 0
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#define LM_PDU_EXCLUSIVE 1
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/* Max disconnect reason code, see _LM_PDU_DscReason[] in decdirda.c */
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#define LM_PDU_MAX_DSC_REASON 0x8
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/*
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** Negotiation Parameter Identifiers
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*/
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#define NEG_PI_BAUD 0x01
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#define NEG_PI_MAX_TAT 0x82
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#define NEG_PI_DATA_SZ 0x83
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#define NEG_PI_WIN_SZ 0x84
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#define NEG_PI_BOFS 0x85
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#define NEG_PI_MIN_TAT 0x86
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#define NEG_PI_DISC_THRESH 0x08
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// Tiny TP!
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#define TTP_PFLAG_NO_PARMS 0
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#define TTP_PFLAG_PARMS 1
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#define TTP_MBIT_NOT_FINAL 1
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#define TTP_MBIT_FINAL 0
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typedef struct
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{
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BYTE InitialCredit : 7;
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BYTE ParmFlag : 1;
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} TTP_CONN_HEADER;
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typedef struct
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{
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BYTE AdditionalCredit : 7;
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BYTE MoreBit : 1;
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} TTP_DATA_HEADER;
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#define net_short(x) ((((x)&0xff) << 8) | (((x)&0xff00) >> 8))
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#define net_long(x) (((((DWORD UNALIGNED)(x))&0xffL)<<24) | \
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((((DWORD UNALIGNED)(x))&0xff00L)<<8) | \
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((((DWORD UNALIGNED)(x))&0xff0000L)>>8) | \
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((((DWORD UNALIGNED)(x))&0xff000000L)>>24))
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