/**
*
* @param None
*
* @return None
*
******************************************************************************/
u32 XFsbl_Authentication(XFsblPs * FsblInstancePtr, u64 PartitionOffset,
u32 PartitionLen, u64 AcOffset, u32 HashLen,
u32 PartitionNum)
{
u32 Status = XFSBL_SUCCESS;
XFsbl_Printf(DEBUG_INFO,
"Auth: Partition Offset %0x, PartitionLen %0x,"
" AcOffset %0x, HashLen %0x\r\n",
(PTRSIZE )PartitionOffset, PartitionLen,
(PTRSIZE )AcOffset, HashLen);
/* Do SPK Signature verification using PPK */
Status = XFsbl_SpkVer(FsblInstancePtr, AcOffset, HashLen, PartitionNum);
if(XFSBL_SUCCESS != Status)
{
goto END;
}
/* Do Partition Signature verification using SPK */
Status = XFsbl_PartitionSignVer(FsblInstancePtr, PartitionOffset,
PartitionLen, AcOffset, HashLen,
PartitionNum);
if(XFSBL_SUCCESS != Status)
{
goto END;
}
END:
return Status;
}
/******************************************************************************
*
* This function performs authentication and reauthentication of block
*
* @param PartitionParams is a pointer to XFsblPs_PlPartition
* @param SrcAddress holds the start address of block
* @param Length of the block
* @param AuthCer holds authentication certificate.
*
* @return
* - Error code on failure
* - Success on success
*
* @note None.
*
******************************************************************************/
static u32 XFsbl_PlBlockAuthentication(XFsblPs * FsblInstancePtr,
XFsblPs_PlPartition *PartitionParams,
UINTPTR SrcAddress, u32 Length, u8 *AuthCer)
{
u32 Status;
u32 NoOfChunks;
if (Length > PartitionParams->ChunkSize) {
NoOfChunks = Length/PartitionParams->ChunkSize;
if (Length%PartitionParams->ChunkSize > 0) {
NoOfChunks++;
}
}
else {
/* If length of block equal to Chunk Size */
NoOfChunks = 1;
}
/* Check for Hash storage buffer availability */
if (NoOfChunks > PartitionParams->PlAuth.NoOfHashs) {
XFsbl_Printf(DEBUG_GENERAL,
"XFsbl_PlPartition:"
"XFSBL_ERROR_PROVIDED_BUF_HASH_STORE Required "
"hashs = %d \t provided = %d\r\n", NoOfChunks,
PartitionParams->PlAuth.NoOfHashs);
return XFSBL_ERROR_PROVIDED_BUF_HASH_STORE;
}
/* Do SPK Signature verification using PPK */
Status = XFsbl_SpkVer((UINTPTR)AuthCer, PartitionParams->PlAuth.AuthType);
if (XFSBL_SUCCESS != Status) {
goto END;
}
/*
* Do Partition Signature verification
* of block in chunks and store each chunk's hash
*/
Status = XFsbl_PlSignVer(PartitionParams, SrcAddress,
Length, AuthCer, NoOfChunks);
if (XFSBL_SUCCESS != Status) {
goto END;
}
/*
* Re-Authentication of block calculates the hash on
* chunks and compares with stored hashs
* If decryption is enabled data is been sent to AES
* and if decryption is disabled
* data is written to PCAP with CSU DMA
*/
Status = XFsbl_ReAuthenticationBlock(PartitionParams, SrcAddress,
Length, NoOfChunks);
if (Status != XFSBL_SUCCESS) {
goto END;
}
END:
return Status;
}
