kcapi_kpp_ssgen_aio - generate a shared secret (asynchronous one shot)

handle
           [in] cipher handle

       iniov
           [in] head of scatter-gather list of the source buffers with the public keys of the peer

       outiov
           [out] head of scatter-gather list of the destination buffers filled with the generated shared secret

       iovlen
           [in] number of scatter-gather list entries

       access
           [in] kernel access type (KCAPI_ACCESS_HEURISTIC - use internal heuristic for fastest kernel access;
           KCAPI_ACCESS_VMSPLICE - use vmsplice access; KCAPI_ACCESS_SENDMSG - sendmsg access)

StephanMueller <smueller@chronox.de>
           Author.

libkcapi Manual 1.5.0                              April 2024                             KCAPI_KPP_SSGEN_AIO(3)

       The individual scatter-gather list entries are processed with separate invocations of the the given
       cipher.

       The memory should be aligned at the page boundary using posix_memalign(sysconf(_SC_PAGESIZE)), If it is
       not aligned at the page boundary, the vmsplice call may not send all data to the kernel.

       return number of bytes verify upon success; a negative errno-style error code if an error occurred

       kcapi_kpp_ssgen_aio - generate a shared secret (asynchronous one shot)

ssize_tkcapi_kpp_ssgen_aio(structkcapi_handle*handle,structiovec*iniov,structiovec*outiov,size_tiovlen,intaccess);