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Davide Caratti says: ==================== net: tls: add socket diag The current kernel does not provide any diagnostic tool, except getsockopt(TCP_ULP), to know more about TCP sockets that have an upper layer protocol (ULP) on top of them. This series extends the set of information exported by INET_DIAG_INFO, to include data that are specific to the ULP (and that might be meaningful for debug/testing purposes). patch 1/3 ensures that the control plane reads/updates ULP specific data using RCU. patch 2/3 extends INET_DIAG_INFO and allows knowing the ULP name for each TCP socket that has done setsockopt(TCP_ULP) successfully. patch 3/3 extends kTLS to let programs like 'ss' know the protocol version and the cipher in use. Changes since v2: - remove unneeded #ifdef and fix reverse christmas tree in tls_get_info(), thanks to Jakub Kicinski Changes since v1: - don't worry about grace period when accessing ulp_ops, thanks to Jakub Kicinski and Eric Dumazet - use rcu_dereference() to access ULP data in tls get_info(), and test against NULL value, thanks to Jakub Kicinski - move RCU protected section inside tls get_info(), thanks to Jakub Kicinski Changes since RFC: - some coding style fixes, thanks to Jakub Kicinski - add X_UNSPEC as lowest value of uAPI enums, thanks to Jakub Kicinski - fix assignment of struct nlattr *start, thanks to Jakub Kicinski - let tls dump RXCONF and TXCONF, suggested by Jakub Kicinski - don't dump anything if TLS version or cipher are 0 (but still return a constant size in get_aux_size()), thanks to Boris Pismenny - constify first argument of get_info() and get_size() - use RCU to access access ulp_ops, like it's done for ca_ops - add patch 1/3, from Jakub Kicinski ==================== Signed-off-by: David S. Miller <davem@davemloft.net> |
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Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.