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doc/cha-features.texi
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Krenzelok Frantisek
kTLS: Document rekey support
28 мар 2025, 13:19
28 мар 2025, 13:19
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@node Additional Features @appendix Additional Features @menu * kTLS (Kernel TLS):: @end menu @node kTLS (Kernel TLS) @section kTLS (Kernel TLS) @cindex kTLS (Kernel TLS) kTLS (Kernel TLS) is a Linux kernel feature that offloads TLS encryption and decryption operations to the kernel space, improving performance and reducing CPU overhead. It allows applications to leverage zero-copy data transmission, reducing context switches between user space and kernel space. The following table shows how to enable kTLS support on Linux and FreeBSD systems. @float Table,tab:ktls_support @multitable @columnfractions .40 .30 .30 @headitem Description @tab Linux @tab FreeBSD @item Load kernel module @tab @code{modprobe tls} @tab @code{kldload tls} @item Check if module is loaded @tab @code{lsmod | grep tls} @tab @code{kldstat | grep tls} @item kTLS rekey support @tab v6.14 @tab not yet supported @end multitable @caption{kTLS system enable} @end float To enable ktls in GnuTLS @ref{Enabling kTLS}.