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John Baldwin 019cff03b3 OpenSSL: KTLS: Check for unprocessed receive records in ktls_configure_crypto. 
KTLS implementations currently assume that the start of the in-kernel
socket buffer is aligned with the start of a TLS record for the
receive side.  The socket option to enable KTLS specifies the TLS
sequence number of this initial record.

When read ahead is enabled, data can be pending in the SSL read buffer
after negotiating session keys.  This pending data must be examined to
ensurs that the kernel's socket buffer does not contain a partial TLS
record as well as to determine the correct sequence number of the
first TLS record to be processed by the kernel.

In preparation for enabling receive kernel offload for TLS 1.3, move
the existing logic to handle read ahead from t1_enc.c into ktls.c and
invoke it from ktls_configure_crypto().

Approved by:	jkim
Obtained from:	OpenSSL commit 85773128d0e80cd8dcc772a6931d385b8cf4acd1
MFC after:	1 week
Sponsored by:	Netflix
Differential Revision:	https://reviews.freebsd.org/D34973
2022-05-04 13:08:03 -07:00
..
apps OpenSSL: Merge OpenSSL 1.1.1o 2022-05-03 15:07:06 -04:00
crypto OpenSSL: Merge OpenSSL 1.1.1o 2022-05-03 15:07:06 -04:00
doc OpenSSL: Merge OpenSSL 1.1.1o 2022-05-03 15:07:06 -04:00
engines OpenSSL: Merge OpenSSL 1.1.1m 2021-12-14 16:03:52 -05:00
include OpenSSL: Merge OpenSSL 1.1.1o 2022-05-03 15:07:06 -04:00
ssl OpenSSL: KTLS: Check for unprocessed receive records in ktls_configure_crypto. 2022-05-04 13:08:03 -07:00
ACKNOWLEDGEMENTS Update OpenSSL to 1.1.1. 2018-09-13 20:40:51 +00:00
appveyor.yml Merge OpenSSL 1.1.1h. 2020-09-22 16:18:31 +00:00
AUTHORS OpenSSL: Merge OpenSSL 1.1.1j 2021-02-16 17:00:27 -05:00
build.info Merge OpenSSL 1.1.1e. 2020-03-18 02:13:12 +00:00
CHANGES OpenSSL: Merge OpenSSL 1.1.1o 2022-05-03 15:07:06 -04:00
config OpenSSL: Merge OpenSSL 1.1.1n 2022-03-15 19:37:45 -04:00
Configure OpenSSL: Merge OpenSSL 1.1.1n 2022-03-15 19:37:45 -04:00
CONTRIBUTING OpenSSL: Merge OpenSSL 1.1.1j 2021-02-16 17:00:27 -05:00
e_os.h Merge OpenSSL 1.1.1h. 2020-09-22 16:18:31 +00:00
FAQ Merge OpenSSL 1.0.2e. 2015-12-03 21:13:35 +00:00
INSTALL OpenSSL: Merge OpenSSL 1.1.1j 2021-02-16 17:00:27 -05:00
LICENSE Merge OpenSSL 1.1.1b. 2019-02-26 19:31:33 +00:00
NEWS OpenSSL: Merge OpenSSL 1.1.1o 2022-05-03 15:07:06 -04:00
NOTES.PERL Merge OpenSSL 1.1.1h. 2020-09-22 16:18:31 +00:00
NOTES.UNIX Update OpenSSL to 1.1.1. 2018-09-13 20:40:51 +00:00
README OpenSSL: Merge OpenSSL 1.1.1o 2022-05-03 15:07:06 -04:00
README.ENGINE Update OpenSSL to 1.1.1. 2018-09-13 20:40:51 +00:00
README.FIPS Update OpenSSL to 1.1.1. 2018-09-13 20:40:51 +00:00

README 

 OpenSSL 1.1.1o 3 May 2022

 Copyright (c) 1998-2022 The OpenSSL Project
 Copyright (c) 1995-1998 Eric A. Young, Tim J. Hudson
 All rights reserved.

 DESCRIPTION
 -----------

 The OpenSSL Project is a collaborative effort to develop a robust,
 commercial-grade, fully featured, and Open Source toolkit implementing the
 Transport Layer Security (TLS) protocols (including SSLv3) as well as a
 full-strength general purpose cryptographic library.

 OpenSSL is descended from the SSLeay library developed by Eric A. Young
 and Tim J. Hudson.  The OpenSSL toolkit is licensed under a dual-license (the
 OpenSSL license plus the SSLeay license), which means that you are free to
 get and use it for commercial and non-commercial purposes as long as you
 fulfill the conditions of both licenses.

 OVERVIEW
 --------

 The OpenSSL toolkit includes:

 libssl (with platform specific naming):
     Provides the client and server-side implementations for SSLv3 and TLS.

 libcrypto (with platform specific naming):
     Provides general cryptographic and X.509 support needed by SSL/TLS but
     not logically part of it.

 openssl:
     A command line tool that can be used for:
        Creation of key parameters
        Creation of X.509 certificates, CSRs and CRLs
        Calculation of message digests
        Encryption and decryption
        SSL/TLS client and server tests
        Handling of S/MIME signed or encrypted mail
        And more...

 INSTALLATION
 ------------

 See the appropriate file:
        INSTALL         Linux, Unix, Windows, OpenVMS, ...
        NOTES.*         INSTALL addendums for different platforms

 SUPPORT
 -------

 See the OpenSSL website www.openssl.org for details on how to obtain
 commercial technical support. Free community support is available through the
 openssl-users email list (see
 https://www.openssl.org/community/mailinglists.html for further details).

 If you have any problems with OpenSSL then please take the following steps
 first:

    - Download the latest version from the repository
      to see if the problem has already been addressed
    - Configure with no-asm
    - Remove compiler optimization flags

 If you wish to report a bug then please include the following information
 and create an issue on GitHub:

    - OpenSSL version: output of 'openssl version -a'
    - Configuration data: output of 'perl configdata.pm --dump'
    - OS Name, Version, Hardware platform
    - Compiler Details (name, version)
    - Application Details (name, version)
    - Problem Description (steps that will reproduce the problem, if known)
    - Stack Traceback (if the application dumps core)

 Just because something doesn't work the way you expect does not mean it
 is necessarily a bug in OpenSSL. Use the openssl-users email list for this type
 of query.

 HOW TO CONTRIBUTE TO OpenSSL
 ----------------------------

 See CONTRIBUTING

 LEGALITIES
 ----------

 A number of nations restrict the use or export of cryptography. If you
 are potentially subject to such restrictions you should seek competent
 professional legal advice before attempting to develop or distribute
 cryptographic code.