提交 13cfb043 编写于 作者: D Dr. Stephen Henson

reorganise SSL_CONF_cmd manual page and update some links

上级 22b5d7c8
......@@ -54,7 +54,8 @@ SSL servers.
In addition to the options below the B<s_client> utility also supports the
common and client only options documented in the
B<SUPPORTED COMMAND LINE OPTIONS> section in L<SSL_CONF_cmd(3)|SSL_CONF_cmd(3)>.
in the L<SSL_CONF_cmd(3)|SSL_CONF_cmd(3)/SUPPORTED COMMAND LINE COMMANDS>
manual page.
=over 4
......
......@@ -66,7 +66,8 @@ for connections on a given port using SSL/TLS.
In addition to the options below the B<s_server> utility also supports the
common and server only options documented in the
B<SUPPORTED COMMAND LINE OPTIONS> section in L<SSL_CONF_cmd(3)|SSL_CONF_cmd(3)>.
L<SSL_CONF_cmd(3)|SSL_CONF_cmd(3)/SUPPORTED COMMAND LINE COMMANDS> manual
page.
=over 4
......
......@@ -15,7 +15,119 @@ SSL_CONF_cmd - send configuration command
The function SSL_CONF_cmd() performs configuration operation B<cmd> with
optional parameter B<value> on B<ctx>. Its purpose is to simplify application
configuration of B<SSL_CTX> or B<SSL> structures by providing a common
framework for configuration files or command line options.
framework for command line options or configuration files.
=head1 SUPPORTED COMMAND LINE COMMANDS
Currently supported B<cmd> names for command lines (i.e. when the
flag B<SSL_CONF_CMDLINE> is set) are listed below. Note: all B<cmd> names
and are case sensitive. Unless otherwise stated commands can be used by
both clients and servers and the B<value> parameter is not used. The default
prefix for command line commands is B<-> and that is reflected below.
=over 4
=item B<-sigalgs>
This sets the supported signature algorithms for TLS v1.2. For clients this
value is used directly for the supported signature algorithms extension. For
servers it is used to determine which signature algorithms to support.
The B<value> argument should be a colon separated list of signature algorithms
in order of decreasing preference of the form B<algorithm+hash>. B<algorithm>
is one of B<RSA>, B<DSA> or B<ECDSA> and B<hash> is a supported algorithm
OID short name such as B<SHA1>, B<SHA224>, B<SHA256>, B<SHA384> of B<SHA512>.
Note: algorithm and hash names are case sensitive.
If this option is not set then all signature algorithms supported by the
OpenSSL library are permissible.
=item B<-client_sigalgs>
This sets the supported signature algorithms associated with client
authentication for TLS v1.2. For servers the value is used in the supported
signature algorithms field of a certificate request. For clients it is
used to determine which signature algorithm to with the client certificate.
If a server does not request a certificate this option has no effect.
The syntax of B<value> is identical to B<-sigalgs>. If not set then
the value set for B<-sigalgs> will be used instead.
=item B<-curves>
This sets the supported elliptic curves. For servers the curves are
sent using the supported curves extension for TLS v1.2. For clients it is used
to determine which curve to use. This setting affects curves used for both
signatures and key exchange, if applicable.
The B<value> argument is a colon separated list of curves. The curve can be
either the B<NIST> name (e.g. B<P-256>) or an OpenSSL OID name (e.g
B<prime256v1>). Curve names are case sensitive.
=item B<-named_curve>
This sets the temporary curve used for ephemeral ECDH modes. Only used by
servers
The B<value> argument is a curve name or the special value B<auto> which
picks an appropriate curve based on client and server preferences. The curve
can be either the B<NIST> name (e.g. B<P-256>) or an OpenSSL OID name
(e.g B<prime256v1>). Curve names are case sensitive.
=item B<-cipher>
Sets the cipher suite list to B<value>. Note: syntax checking of B<value> is
currently not performed unless a B<SSL> or B<SSL_CTX> structure is
associated with B<cctx>.
=item B<-no_ssl2>, B<-no_ssl3>, B<-no_tls1>, B<-no_tls1_1>, B<-no_tls1_2>
Disables protocol support for SSLv2, SSLv3, TLS 1.0, TLS 1.1 or TLS 1.2
by setting the corresponding options B<SSL_OP_NO_SSL2>, B<SSL_OP_NO_SSL3>,
B<SSL_OP_NO_TLS1>, B<SSL_OP_NO_TLS1_1> and B<SSL_OP_NO_TLS1_2> respectively.
=item B<-bugs>
Various bug workarounds are set, same as setting B<SSL_OP_ALL>.
=item B<-no_comp>
Disables support for SSL/TLS compression, same as setting B<SSL_OP_NO_COMPRESS>.
=item B<-no_ticket>
Disables support for session tickets, same as setting B<SSL_OP_NO_TICKET>.
=item B<-serverpref>
Use server and not client preference order when determining which cipher suite,
signature algorithm or elliptic curve to use for an incoming connection.
Equivalent to B<SSL_OP_CIPHER_SERVER_PREFERENCE>. Only used by servers.
=item B<-legacyrenegotiation>
permits the use of unsafe legacy renegotiation. Equivalent to setting
B<SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION>.
=item B<-legacy_server_connect>, B<-no_legacy_server_connect>
permits or prohibits the use of unsafe legacy renegotiation for OpenSSL
clients only. Equivalent to setting or clearing B<SSL_OP_LEGACY_SERVER_CONNECT>.
Set by default.
=item B<-strict>
enables strict mode protocol handling. Equivalent to setting
B<SSL_CERT_FLAG_TLS_STRICT>.
=item B<-debug_broken_protocol>
disables various checks and permits several kinds of broken protocol behaviour
for testing purposes: it should B<NEVER> be used in anything other than a test
environment. Only supported if OpenSSL is configured with
B<-DOPENSSL_SSL_DEBUG_BROKEN_PROTOCOL>.
=back
=head1 SUPPORTED CONFIGURATION FILE COMMANDS
......@@ -73,7 +185,8 @@ B<prime256v1>). Curve names are case sensitive.
=item B<ECDHParameters>
This sets the temporary curve used for ephemeral ECDH modes.
This sets the temporary curve used for ephemeral ECDH modes. Only used by
servers
The B<value> argument is a curve name or the special value B<Automatic> which
picks an appropriate curve based on client and server preferences. The curve
......@@ -133,92 +246,6 @@ Set by default.
=back
=head1 SUPPORTED COMMAND LINE COMMANDS
Currently supported B<cmd> names for command lines (i.e. when the
flag B<SSL_CONF_CMDLINE> is set) are listed below. Note: all B<cmd> names
and are case sensitive. Unless otherwise stated the B<value> parameter is
not used. The default prefix for command line commands is B<-> and that is
reflected below.
=over 4
=item B<-sigalgs>
Sets the supported signature algorithms to B<value>. Equivalent to the
B<SignatureAlgorithms> file command.
=item B<-client_sigalgs>
Sets the supported client signature algorithms to B<value>. Equivalent to the
B<ClientSignatureAlgorithms> file command.
=item B<-curves>
Sets supported elliptic curves to B<value>. Equivalent to B<Curves> file
command.
=item B<-named_curve>
Sets supported ECDH parameters to B<value>. For automatic curve selection
B<value> should be set to B<auto>, otherwise the command is identical to
the B<ECDHParameters> file command.
=item B<-cipher>
Sets the cipher suite list to B<value>. Note: syntax checking of B<value> is
currently not performed unless a B<SSL> or B<SSL_CTX> structure is
associated with B<cctx>.
=item B<-no_ssl2>, B<-no_ssl3>, B<-no_tls1>, B<-no_tls1_1>, B<-no_tls1_2>
Disables protocol support for SSLv2, SSLv3, TLS 1.0, TLS 1.1 or TLS 1.2
by setting the corresponding options B<SSL_OP_NO_SSL2>, B<SSL_OP_NO_SSL3>,
B<SSL_OP_NO_TLS1>, B<SSL_OP_NO_TLS1_1> and B<SSL_OP_NO_TLS1_2> respectively.
=item B<-bugs>
Various bug workarounds are set, same as setting B<SSL_OP_ALL>.
=item B<-no_comp>
Disables support for SSL/TLS compression, same as setting B<SSL_OP_NO_COMPRESS>.
=item B<-no_ticket>
Disables support for session tickets, same as setting B<SSL_OP_NO_TICKET>.
=item B<-serverpref>
Use server and not client preference order when determining which cipher suite,
signature algorithm or elliptic curve to use for an incoming connection.
Equivalent to B<SSL_OP_CIPHER_SERVER_PREFERENCE>. Only used by servers.
=item B<-legacyrenegotiation>
permits the use of unsafe legacy renegotiation. Equivalent to setting
B<SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION>.
=item B<-legacy_server_connect>, B<-no_legacy_server_connect>
permits or prohibits the use of unsafe legacy renegotiation for OpenSSL
clients only. Equivalent to setting or clearing B<SSL_OP_LEGACY_SERVER_CONNECT>.
Set by default.
=item B<-strict>
enables strict mode protocol handling. Equivalent to setting
B<SSL_CERT_FLAG_TLS_STRICT>.
=item B<-debug_broken_protocol>
disables various checks and permits several kinds of broken protocol behaviour
for testing purposes: it should B<NEVER> be used in anything other than a test
environment. Only supported if OpenSSL is configured with
B<-DOPENSSL_SSL_DEBUG_BROKEN_PROTOCOL>.
=back
=head1 NOTES
The order of operations is significant. This can be used to set either defaults
......
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