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360f6dcc5a
RISC-V cpuid implementation allows bitmanip extensions Zb[abcs] to be enabled at runtime using OPENSSL_riscvcap environment variable. For example, to specify 64-bit RISC-V with the G,C,Zba,Zbb,Zbc extensions, one could write: OPENSSL_riscvcap="rv64gc_zba_zbb_zbc" Architecture string parsing is still very primitive, but can be expanded in the future. Currently, only bitmanip extensions Zba, Zbb, Zbc and Zbs are supported. Includes implementation of constant-time CRYPTO_memcmp in riscv64 asm, as well as OPENSSL_cleanse. Assembly implementations are written using perlasm. Reviewed-by: Philipp Tomsich <philipp.tomsich@vrull.eu> Signed-off-by: Henry Brausen <henry.brausen@vrull.eu> Reviewed-by: Tomas Mraz <tomas@openssl.org> Reviewed-by: Paul Dale <pauli@openssl.org> (Merged from https://github.com/openssl/openssl/pull/17640)
102 lines
2.9 KiB
Plaintext
102 lines
2.9 KiB
Plaintext
=pod
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=head1 NAME
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openssl-env - OpenSSL environment variables
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=head1 DESCRIPTION
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The OpenSSL libraries use environment variables to override the
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compiled-in default paths for various data.
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To avoid security risks, the environment is usually not consulted when
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the executable is set-user-ID or set-group-ID.
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=over 4
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=item B<CTLOG_FILE>
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Specifies the path to a certificate transparency log list.
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See L<CTLOG_STORE_new(3)>.
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=item B<OPENSSL>
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Specifies the path to the B<openssl> executable. Used by
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the B<rehash> script (see L<openssl-rehash(1)/Script Configuration>)
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and by the B<CA.pl> script (see L<CA.pl(1)/NOTES>
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=item B<OPENSSL_CONF>, B<OPENSSL_CONF_INCLUDE>
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Specifies the path to a configuration file and the directory for
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included files.
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See L<config(5)>.
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=item B<OPENSSL_CONFIG>
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Specifies a configuration option and filename for the B<req> and B<ca>
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commands invoked by the B<CA.pl> script.
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See L<CA.pl(1)>.
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=item B<OPENSSL_ENGINES>
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Specifies the directory from which dynamic engines are loaded.
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See L<openssl-engine(1)>.
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=item B<OPENSSL_MALLOC_FD>, B<OPENSSL_MALLOC_FAILURES>
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If built with debugging, this allows memory allocation to fail.
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See L<OPENSSL_malloc(3)>.
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=item B<OPENSSL_MODULES>
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Specifies the directory from which cryptographic providers are loaded.
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Equivalently, the generic B<-provider-path> command-line option may be used.
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=item B<OPENSSL_WIN32_UTF8>
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If set, then L<UI_OpenSSL(3)> returns UTF-8 encoded strings, rather than
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ones encoded in the current code page, and
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the L<openssl(1)> program also transcodes the command-line parameters
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from the current code page to UTF-8.
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This environment variable is only checked on Microsoft Windows platforms.
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=item B<RANDFILE>
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The state file for the random number generator.
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This should not be needed in normal use.
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See L<RAND_load_file(3)>.
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=item B<SSL_CERT_DIR>, B<SSL_CERT_FILE>
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Specify the default directory or file containing CA certificates.
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See L<SSL_CTX_load_verify_locations(3)>.
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=item B<TSGET>
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Additional arguments for the L<tsget(1)> command.
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=item B<OPENSSL_ia32cap>, B<OPENSSL_sparcv9cap>, B<OPENSSL_ppccap>, B<OPENSSL_armcap>, B<OPENSSL_s390xcap>, B<OPENSSL_riscvcap>
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OpenSSL supports a number of different algorithm implementations for
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various machines and, by default, it determines which to use based on the
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processor capabilities and run time feature enquiry. These environment
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variables can be used to exert more control over this selection process.
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See L<OPENSSL_ia32cap(3)>, L<OPENSSL_s390xcap(3)>.
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=item B<NO_PROXY>, B<HTTPS_PROXY>, B<HTTP_PROXY>
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Specify a proxy hostname.
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See L<OSSL_HTTP_parse_url(3)>.
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=back
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=head1 COPYRIGHT
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Copyright 2019-2022 The OpenSSL Project Authors. All Rights Reserved.
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Licensed under the Apache License 2.0 (the "License"). You may not use
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this file except in compliance with the License. You can obtain a copy
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in the file LICENSE in the source distribution or at
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L<https://www.openssl.org/source/license.html>.
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=cut
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