#include <openssl/ssl.h>
int SSL_CONF_cmd(SSL_CONF_CTX *cctx, const char *cmd, const char *value);
+ int SSL_CONF_cmd_value_type(SSL_CONF_CTX *cctx, const char *cmd);
+ int SSL_CONF_finish(SSL_CONF_CTX *cctx);
=head1 DESCRIPTION
configuration of B<SSL_CTX> or B<SSL> structures by providing a common
framework for command line options or configuration files.
+SSL_CONF_cmd_value_type() returns the type of value that B<cmd> refers to.
+
+The function SSL_CONF_finish() must be called after all configuration
+operations have been completed. It is used to finalise any operations
+or to process defaults.
+
=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
+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.
currently not performed unless a B<SSL> or B<SSL_CTX> structure is
associated with B<cctx>.
+=item B<-cert>
+
+Attempts to use the file B<value> as the certificate for the appropriate
+context. It currently uses SSL_CTX_use_certificate_chain_file() if an B<SSL_CTX>
+structure is set or SSL_use_certificate_file() with filetype PEM if an B<SSL>
+structure is set. This option is only supported if certificate operations
+are permitted.
+
+=item B<-key>
+
+Attempts to use the file B<value> as the private key for the appropriate
+context. This option is only supported if certificate operations
+are permitted. Note: if no B<-key> option is set then a private key is
+not loaded: it does not currently use the B<-cert> file.
+
+=item B<-dhparam>
+
+Attempts to use the file B<value> as the set of temporary DH parameters for
+the appropriate context. This option is only supported if certificate
+operations are permitted.
+
=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
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<-no_resumption_on_reneg>
+
+set SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION flag. Only used by servers.
+
=item B<-legacyrenegotiation>
permits the use of unsafe legacy renegotiation. Equivalent to setting
Currently supported B<cmd> names for configuration files (i.e. when the
flag B<SSL_CONF_FLAG_FILE> is set) are listed below. All configuration file
-B<cmd> names and are case insensitive so B<signaturealgorithms> is recognised
+B<cmd> names are case insensitive so B<signaturealgorithms> is recognised
as well as B<SignatureAlgorithms>. Unless otherwise stated the B<value> names
are also case insensitive.
currently not performed unless an B<SSL> or B<SSL_CTX> structure is
associated with B<cctx>.
+=item B<Certificate>
+
+Attempts to use the file B<value> as the certificate for the appropriate
+context. It currently uses SSL_CTX_use_certificate_chain_file() if an B<SSL_CTX>
+structure is set or SSL_use_certificate_file() with filetype PEM if an B<SSL>
+structure is set. This option is only supported if certificate operations
+are permitted.
+
+=item B<PrivateKey>
+
+Attempts to use the file B<value> as the private key for the appropriate
+context. This option is only supported if certificate operations
+are permitted. Note: if no B<-key> option is set then a private key is
+not loaded: it does not currently use the B<Certificate> file.
+
+=item B<ServerInfoFile>
+
+Attempts to use the file B<value> in the "serverinfo" extension using the
+function SSL_CTX_use_serverinfo_file.
+
+=item B<DHParameters>
+
+Attempts to use the file B<value> as the set of temporary DH parameters for
+the appropriate context. This option is only supported if certificate
+operations are permitted.
+
=item B<SignatureAlgorithms>
This sets the supported signature algorithms for TLS v1.2. For clients this
to use for an incoming connection. Equivalent to
B<SSL_OP_CIPHER_SERVER_PREFERENCE>. Only used by servers.
+B<NoResumptionOnRenegotiation> set
+B<SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION> flag. Only used by servers.
+
B<UnsafeLegacyRenegotiation> permits the use of unsafe legacy renegotiation.
Equivalent to B<SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION>.
=back
+=head1 SUPPORTED COMMAND TYPES
+
+The function SSL_CONF_cmd_value_type() currently returns one of the following
+types:
+
+=over 4
+
+=item B<SSL_CONF_TYPE_UNKNOWN>
+
+The B<cmd> string is unrecognised, this return value can be use to flag
+syntax errors.
+
+=item B<SSL_CONF_TYPE_STRING>
+
+The value is a string without any specific structure.
+
+=item B<SSL_CONF_TYPE_FILE>
+
+The value is a file name.
+
+=item B<SSL_CONF_TYPE_DIR>
+
+The value is a directory name.
+
+=back
+
=head1 NOTES
The order of operations is significant. This can be used to set either defaults
and an error is indicated. If 0 is returned some other error occurred and
this can be reported back to the user.
+The function SSL_CONF_cmd_value_type() can be used by applications to
+check for the existence of a command or to perform additional syntax
+checking or translation of the command value. For example if the return
+value is B<SSL_CONF_TYPE_FILE> an application could translate a relative
+pathname to an absolute pathname.
+
=head1 EXAMPLES
Set supported signature algorithms:
=head1 RETURN VALUES
-SSL_CONF_cmd() return 1 if the value of B<cmd> is recognised and B<value> is
+SSL_CONF_cmd() returns 1 if the value of B<cmd> is recognised and B<value> is
B<NOT> used and 2 if both B<cmd> and B<value> are used. In other words it
returns the number of arguments processed. This is useful when processing
command lines.
error in the syntax of B<value> in this case the error queue may provide
additional information.
+SSL_CONF_finish() returns 1 for success and 0 for failure.
+
=head1 SEE ALSO
L<SSL_CONF_CTX_new(3)|SSL_CONF_CTX_new(3)>,
=head1 HISTORY
-SSL_CONF_cmd() was first added to OpenSSL 1.1.0
+SSL_CONF_cmd() was first added to OpenSSL 1.0.2
=cut