NAME

       kcapi_aead_stream_update_last - send last data for processing (stream)

SYNOPSIS

       ssize_t kcapi_aead_stream_update_last(struct kcapi_handle * handle, struct iovec * iov, size_t iovlen);

ARGUMENTS

       handle
           [in] cipher handle

       iov
           [in] scatter/gather list with data to be processed by the cipher operation.

       iovlen
           [in] number of scatter/gather list elements.

DESCRIPTION

       Using this function call, more plaintext for encryption or ciphertext for decryption can be submitted to
       the kernel.

       This call is identical to the kcapi_aead_stream_update call with the exception that it marks the last
       data buffer before the cipher operation is triggered. Typically, the tag value is provided with this
       call.

WARNING

       The memory referenced by iov is not accessed by the kernel during this call. The memory is first accessed
       when kcapi_cipher_stream_op is called. Thus, you MUST make sure that the referenced memory is still
       present at the time kcapi_cipher_stream_op is called.

       return number of bytes sent to the kernel upon success; a negative errno-style error code if an error
       occurred

AUTHOR

       Stephan Mueller <smueller@chronox.de>
           Author.

COPYRIGHT

libkcapi Manual 1.5.0                              April 2024                            KCAPI_AEAD_STREAM_UP(3)