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// $OpenLDAP$
/*
* Copyright 2010-2021 The OpenLDAP Foundation, All Rights Reserved.
* COPYING RESTRICTIONS APPLY, see COPYRIGHT file
*/
#ifndef TLS_OPTIONS_H
#define TLS_OPTIONS_H
#include <string>
#include <ldap.h>
/**
* Class to access the global (and connection specific) TLS Settings
* To access the global TLS Settings just instantiate a TlsOption object
* using the default constructor.
*
* To access connection specific settings instantiate a TlsOption object
* through the getTlsOptions() method from the corresponding
* LDAPConnection/LDAPAsynConnection object.
*
*/
class TlsOptions {
public:
/**
* Available TLS Options
*/
enum tls_option {
CACERTFILE=0,
CACERTDIR,
CERTFILE,
KEYFILE,
REQUIRE_CERT,
PROTOCOL_MIN,
CIPHER_SUITE,
RANDOM_FILE,
CRLCHECK,
DHFILE,
/// @cond
LASTOPT /* dummy */
/// @endcond
};
/**
* Possible Values for the REQUIRE_CERT option
*/
enum verifyMode {
NEVER=0,
HARD,
DEMAND,
ALLOW,
TRY
};
/**
* Possible Values for the CRLCHECK option
*/
enum crlMode {
CRL_NONE=0,
CRL_PEER,
CRL_ALL
};
/**
* Default constructor. Gives access to the global TlsSettings
*/
TlsOptions();
/**
* Set string valued options.
* @param opt The following string valued options are available:
* - TlsOptions::CACERTFILE
* - TlsOptions::CACERTDIR
* - TlsOptions::CERTFILE
* - TlsOptions::KEYFILE
* - TlsOptions::CIPHER_SUITE
* - TlsOptions::RANDOM_FILE
* - TlsOptions::DHFILE
* @param value The value to apply to that option,
* - TlsOptions::CACERTFILE:
* The path to the file containing all recognized Certificate
* Authorities
* - TlsOptions::CACERTDIR:
* The path to a directory containing individual files of all
* recognized Certificate Authority certificates
* - TlsOptions::CERTFILE:
* The path to the client certificate
* - TlsOptions::KEYFILE:
* The path to the file containing the private key matching the
* Certificate that as configured with TlsOptions::CERTFILE
* - TlsOptions::CIPHER_SUITE
* Specifies the cipher suite and preference order
* - TlsOptions::RANDOM_FILE
* Specifies the file to obtain random bits from when
* /dev/[u]random is not available.
* - TlsOptions::DHFILE
* File containing DH parameters
*/
void setOption(tls_option opt, const std::string& value) const;
/**
* Set integer valued options.
* @param opt The following string valued options are available:
* - TlsOptions::REQUIRE_CERT
* - TlsOptions::PROTOCOL_MIN
* - TlsOptions::CRLCHECK
* @param value The value to apply to that option,
* - TlsOptions::REQUIRE_CERT:
* Possible Values (For details see the ldap.conf(5) man-page):
* - TlsOptions::NEVER
* - TlsOptions::DEMAND
* - TlsOptions::ALLOW
* - TlsOptions::TRY
* - TlsOptions::PROTOCOL_MIN
* - TlsOptions::CRLCHECK
* Possible Values:
* - TlsOptions::CRL_NONE
* - TlsOptions::CRL_PEER
* - TlsOptions::CRL_ALL
*/
void setOption(tls_option opt, int value) const;
/**
* Generic setOption variant. Generally you should prefer to use one
* of the other variants
*/
void setOption(tls_option opt, void *value) const;
/**
* Read integer valued options
* @return Option value
* @throws LDAPException in case of error (invalid on non-integer
* valued option is requested)
*/
int getIntOption(tls_option opt) const;
/**
* Read string valued options
* @return Option value
* @throws LDAPException in case of error (invalid on non-string
* valued option is requested)
*/
std::string getStringOption(tls_option opt) const;
/**
* Read options value. Usually you should prefer to use either
* getIntOption() or getStringOption()
* @param value points to a buffer containing the option value
* @throws LDAPException in case of error (invalid on non-string
* valued option is requested)
*/
void getOption(tls_option opt, void *value ) const;
private:
TlsOptions( LDAP* ld );
void newCtx() const;
LDAP *m_ld;
friend class LDAPAsynConnection;
};
#endif /* TLS_OPTIONS_H */
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