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106 lines
4.1 KiB
C
106 lines
4.1 KiB
C
/*-
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* SSLsplit - transparent SSL/TLS interception
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* https://www.roe.ch/SSLsplit
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*
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* Copyright (c) 2009-2019, Daniel Roethlisberger <daniel@roe.ch>.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER AND CONTRIBUTORS ``AS IS''
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef DEFAULTS_H
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#define DEFAULTS_H
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/*
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* Defaults for convenient tweaking or patching.
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*/
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/*
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* User to drop privileges to by default. This user needs to be allowed to
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* create outbound TCP connections, and in some configurations, perform DNS
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* resolution.
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*
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* Packagers may want to use a specific service user account instead of
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* overloading nobody with yet another use case. Using nobody for source
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* builds makes sense because chances are high that it exists. Good practice
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* is to create a dedicated user for sslsplit.
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*
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* Make sure to also patch the manual page if you patch this.
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*/
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#define DFLT_DROPUSER "nobody"
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/*
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* Default file and directory modes for newly created files and directories
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* created as part of e.g. logging. The default is to use full permissions
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* subject to the system's umask, as is the default for system utilities.
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* Use a more restrictive mode for the PID file.
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*/
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#define DFLT_DIRMODE 0777
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#define DFLT_FILEMODE 0666
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#define DFLT_PIDFMODE 0644
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/*
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* Default ciphers spec.
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* Use 'openssl ciphers -v spec' to see what ciphers are effectively enabled
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* by a ciphers spec with a given version of OpenSSL.
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*/
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#define DFLT_CIPHERS "ALL:-aNULL"
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/*
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* Default ciphersuites spec.
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* Use 'openssl ciphers -v spec' to see what ciphersuites are effectively enabled
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* by a ciphersuites spec with a given version of OpenSSL.
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* The ciphersuites spec is for TLS 1.3.
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*/
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#define DFLT_CIPHERSUITES "TLS_AES_256_GCM_SHA384:TLS_CHACHA20_POLY1305_SHA256:TLS_AES_128_GCM_SHA256"
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/*
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* Default elliptic curve for EC cipher suites.
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*/
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#define DFLT_CURVE "prime256v1"
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/*
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* Default leaf key RSA keysize in bits.
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*
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* While implementations still generally accepted leaf keys of 1024 bits in
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* size, we used 1024 for leaf keys. As implementations are starting to sunset
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* 1024 bit RSA not only for CA keys, but also for leaf keys, we now use a 2048
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* bit key size for the leaf cert key in order to maximize interoperability in
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* default config.
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*
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* Users who want a different size, for example 1024 bit RSA for performance,
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* can always use their own pre-generated leaf key using the -K option instead
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* of generating one automatically.
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*
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* Refer to the following resources on key sizes accepted by different
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* implementations. Note that OpenSSL security level restrictions potentially
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* apply to both sslsplit and all of the clients and servers using OpenSSL.
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*
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* OpenSSL:
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* https://www.openssl.org/docs/man1.1.0/man3/SSL_CTX_get_security_level.html
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* https://www.openssl.org/docs/man1.1.1/man3/SSL_CTX_get_security_level.html
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*/
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#define DFLT_LEAFKEY_RSABITS 2048
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#endif /* !DEFAULTS_H */
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/* vim: set noet ft=c: */
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