1KCAPI_AEAD_STREAM_UP(3)      Programming Interface     KCAPI_AEAD_STREAM_UP(3)
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NAME

6       kcapi_aead_stream_update_last - send last data for processing (stream)
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SYNOPSIS

9       int32_t kcapi_aead_stream_update_last(struct kcapi_handle * handle,
10                                             struct iovec * iov,
11                                             uint32_t iovlen);
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ARGUMENTS

14       handle
15           [in] cipher handle
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17       iov
18           [in] scatter/gather list with data to be processed by the cipher
19           operation.
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21       iovlen
22           [in] number of scatter/gather list elements.
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DESCRIPTION

25       Using this function call, more plaintext for encryption or ciphertext
26       for decryption can be submitted to the kernel.
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28       This call is identical to the kcapi_aead_stream_update call with the
29       exception that it marks the last data buffer before the cipher
30       operation is triggered. Typically, the tag value is provided with this
31       call.
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WARNING

34       The memory referenced by iov is not accessed by the kernel during this
35       call. The memory is first accessed when kcapi_cipher_stream_op is
36       called. Thus, you MUST make sure that the referenced memory is still
37       present at the time kcapi_cipher_stream_op is called.
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39       return number of bytes sent to the kernel upon success; a negative
40       errno-style error code if an error occurred
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AUTHOR

43       Stephan Mueller <smueller@chronox.de>
44           Author.
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47libkcapi Manual 1.1.5            January 2020          KCAPI_AEAD_STREAM_UP(3)
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