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Windows Driver: Better code for EncryptionFragmentSize variable handling

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This commit is contained in:
Mounir IDRASSI
2021-12-30 00:10:23 +01:00
parent 7e20f65e68
commit fac35ab08a
1 changed files with 5 additions and 4 deletions
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9
src/Driver/Ntdriver.c
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@@ -4833,12 +4833,13 @@ NTSTATUS ReadRegistryConfigFlags (BOOL driverEntry)
EncryptionItemCount = EncryptionIoRequestCount - 1;
/* EncryptionFragmentSize value in registry is expressed in KiB */
EncryptionFragmentSize *= 1024;
if (EncryptionFragmentSize == 0)
EncryptionFragmentSize = TC_ENC_IO_QUEUE_MAX_FRAGMENT_SIZE / 1024;
else if (EncryptionFragmentSize > (8 * TC_ENC_IO_QUEUE_MAX_FRAGMENT_SIZE / 1024))
EncryptionFragmentSize = 8 * TC_ENC_IO_QUEUE_MAX_FRAGMENT_SIZE / 1024;
EncryptionFragmentSize = TC_ENC_IO_QUEUE_MAX_FRAGMENT_SIZE;
else if (EncryptionFragmentSize > (8 * TC_ENC_IO_QUEUE_MAX_FRAGMENT_SIZE))
EncryptionFragmentSize = 8 * TC_ENC_IO_QUEUE_MAX_FRAGMENT_SIZE;
EncryptionFragmentSize = EncryptionFragmentSize * 1024;
}