Callback Functions. More...

Functions
globus_result_t	globus_gsi_callback_get_X509_STORE_callback_data_index (int *index)
	Get callback data index from X509_STORE. More...

globus_result_t	globus_gsi_callback_get_SSL_callback_data_index (int *index)
	Get callback data index from SSL structure. More...

int	globus_gsi_callback_X509_verify_cert (X509_STORE_CTX context, void arg)
	Certificate verify wrapper. More...

int	globus_gsi_callback_create_proxy_callback (int preverify_ok, X509_STORE_CTX *x509_context)
	Independent path validation callback. More...

int	globus_gsi_callback_handshake_callback (int preverify_ok, X509_STORE_CTX *x509_context)
	SSL path validation callback. More...

int	globus_gsi_callback_check_issued (X509_STORE_CTX context, X509 cert, X509 *issuer)
	OpenSSL X509_check_issued() wrapper. More...

Detailed Description

Callback Functions.

Functions that plug into various plug points in the OpenSSL path validation mechanism. These functions add CRL checking, X509 Extension handling and proxy validation.

Function Documentation

int globus_gsi_callback_check_issued	(	X509_STORE_CTX *	context,
		X509 *	cert,
		X509 *	issuer
	)

OpenSSL X509_check_issued() wrapper.

This function wraps the OpenSSL X509_check_issued() call and catches the error caused by the fact that a proxy certificate issuer may not have to have the correct KeyUsage fields set.

Parameters

context	The validation state object.
cert	The certificate to check
issuer	The issuer certificate to check

Returns: 1 on success 0 on failure

int globus_gsi_callback_create_proxy_callback	(	int	preverify_ok,
		X509_STORE_CTX *	x509_context
	)

Independent path validation callback.

This function provides a path validation callback for validation outside of a SSL session. It should be used in X509_STORE_set_verify_cb_func().

Parameters

preverify_ok	Communicates the result of default validation steps performed by OpenSSL
x509_context	The validation state object

Returns: 1 on success 0 on failure

globus_result_t globus_gsi_callback_get_SSL_callback_data_index ( int * index )

Get callback data index from SSL structure.

Retrieve or create the index for our callback data structure in the SSL structure.

Parameters

index Will contain the index upon return

Returns: GLOBUS_SUCCESS unless an error occurred, in which case, a globus error object ID is returned

globus_result_t globus_gsi_callback_get_X509_STORE_callback_data_index ( int * index )

Get callback data index from X509_STORE.

Retrieve or create the index for our callback data structure in the X509_STORE.

Parameters

index Will contain the index upon return

Returns: GLOBUS_SUCCESS unless an error occurred, in which case, a globus error object ID is returned

int globus_gsi_callback_handshake_callback	(	int	preverify_ok,
		X509_STORE_CTX *	x509_context
	)

SSL path validation callback.

This function provides a path validation callback for the validation part of establishing a SSL session. It handles proxy certificates, X509 Extensions and CRL checking. It should be used in SSL_CTX_set_verify().

Parameters

preverify_ok	Communicates the result of default validation steps performed by OpenSSL
x509_context	The validation state object.

Returns: 1 on success 0 on failure

int globus_gsi_callback_X509_verify_cert	(	X509_STORE_CTX *	context,
		void *	arg
	)

Certificate verify wrapper.

This function wraps the OpenSSL certificate verification callback for the purpose of a replacing the standard issuer check with one that deals with proxy certificates. Should be used with SSL_CTX_set_cert_verify_callback()

Parameters

context	The X509_STORE_CTX for which to register the callback.
arg	Arguments to the callback. Currently ignored.

Returns: 1 on success 0 on failure