* Return Value: Hash value
*
*/
-unsigned char ETHbyGetHashIndexByCrc32 (unsigned char *pbyMultiAddr)
+unsigned char ETHbyGetHashIndexByCrc32(unsigned char *pbyMultiAddr)
{
- int ii;
- unsigned char byTmpHash;
- unsigned char byHash = 0;
+ int ii;
+ unsigned char byTmpHash;
+ unsigned char byHash = 0;
- // get the least 6-bits from CRC generator
- byTmpHash = (unsigned char)(CRCdwCrc32(pbyMultiAddr, ETH_ALEN,
- 0xFFFFFFFFL) & 0x3F);
- // reverse most bit to least bit
- for (ii = 0; ii < (sizeof(byTmpHash) * 8); ii++) {
- byHash <<= 1;
- if (byTmpHash & 0x01)
- byHash |= 1;
- byTmpHash >>= 1;
- }
+ // get the least 6-bits from CRC generator
+ byTmpHash = (unsigned char)(CRCdwCrc32(pbyMultiAddr, ETH_ALEN,
+ 0xFFFFFFFFL) & 0x3F);
+ // reverse most bit to least bit
+ for (ii = 0; ii < (sizeof(byTmpHash) * 8); ii++) {
+ byHash <<= 1;
+ if (byTmpHash & 0x01)
+ byHash |= 1;
+ byTmpHash >>= 1;
+ }
- // adjust 6-bits to the right most
- return (byHash >> 2);
+ // adjust 6-bits to the right most
+ return (byHash >> 2);
}
* Return Value: true if ok; false if error.
*
*/
-bool ETHbIsBufferCrc32Ok (unsigned char *pbyBuffer, unsigned int cbFrameLength)
+bool ETHbIsBufferCrc32Ok(unsigned char *pbyBuffer, unsigned int cbFrameLength)
{
- unsigned long dwCRC;
+ unsigned long dwCRC;
- dwCRC = CRCdwGetCrc32(pbyBuffer, cbFrameLength - 4);
- if (cpu_to_le32(*((unsigned long *)(pbyBuffer + cbFrameLength - 4))) != dwCRC) {
- return false;
- }
- return true;
+ dwCRC = CRCdwGetCrc32(pbyBuffer, cbFrameLength - 4);
+ if (cpu_to_le32(*((unsigned long *)(pbyBuffer + cbFrameLength - 4))) != dwCRC) {
+ return false;
+ }
+ return true;
}
// constants
//
#define U_ETHER_ADDR_STR_LEN (ETH_ALEN * 2 + 1)
- // Ethernet address string length
+// Ethernet address string length
#define MAX_LOOKAHEAD_SIZE ETH_FRAME_LEN
// Ethernet packet
//
typedef struct tagSEthernetHeader {
- unsigned char abyDstAddr[ETH_ALEN];
- unsigned char abySrcAddr[ETH_ALEN];
- unsigned short wType;
-}__attribute__ ((__packed__))
+ unsigned char abyDstAddr[ETH_ALEN];
+ unsigned char abySrcAddr[ETH_ALEN];
+ unsigned short wType;
+} __attribute__ ((__packed__))
SEthernetHeader, *PSEthernetHeader;
// 802_3 packet
//
typedef struct tagS802_3Header {
- unsigned char abyDstAddr[ETH_ALEN];
- unsigned char abySrcAddr[ETH_ALEN];
- unsigned short wLen;
-}__attribute__ ((__packed__))
+ unsigned char abyDstAddr[ETH_ALEN];
+ unsigned char abySrcAddr[ETH_ALEN];
+ unsigned short wLen;
+} __attribute__ ((__packed__))
S802_3Header, *PS802_3Header;
//
// 802_11 packet
//
typedef struct tagS802_11Header {
- unsigned short wFrameCtl;
- unsigned short wDurationID;
- unsigned char abyAddr1[ETH_ALEN];
- unsigned char abyAddr2[ETH_ALEN];
- unsigned char abyAddr3[ETH_ALEN];
- unsigned short wSeqCtl;
- unsigned char abyAddr4[ETH_ALEN];
-}__attribute__ ((__packed__))
+ unsigned short wFrameCtl;
+ unsigned short wDurationID;
+ unsigned char abyAddr1[ETH_ALEN];
+ unsigned char abyAddr2[ETH_ALEN];
+ unsigned char abyAddr3[ETH_ALEN];
+ unsigned short wSeqCtl;
+ unsigned char abyAddr4[ETH_ALEN];
+} __attribute__ ((__packed__))
S802_11Header, *PS802_11Header;
/*--------------------- Export Macros ------------------------------*/