GLOBUS_XIO_GSI_GET_CONTEXT (3)

An XIO handle with the gsi driver can be created with either globus_xio_handle_create () or globus_xio_server_register_accept ().

If the handle is created with globus_xio_server_register_accept (), the globus_xio_register_open () call will proceed to accept a GSSAPI security context. Upon successful completion of the open (after the open callback has been called) the application may proceed to read or write data associated with the GSI session.

If the handle is created with globus_xio_handle_create (), then the XIO handle will implement the client-side (init) of the GSSAPI call sequence and establish a security context with the accepting side indicated by the contact_string passed to globus_xio_register_open ().

The GSI driver behaves similar to the underlying transport driver with respect to reads and writes, except for the try-read and try-write operations (ie. waitforbytes ==0) which always return immediately. This is due to the fact that the security layer needs to read and write tokens of a certain minimal size and thus needs to rely on the underlying transport to handle greater than 0 reads/write which is not possible in 'try' mode.

globus_xio_server_create() causes a new transport-specific listener socket to be created to handle new GSI connections. globus_xio_server_register_accept() will accept a new connection for processing. globus_xio_server_register_close() cleans up the internal resources associated with the http server and calls close on the listener.

All accepted handles inherit all GSI-specific attributes set in the attr to globus_xio_server_create(), but can be overridden with the attr to globus_xio_register_open(). Furthermore, accepted handles will use the GSSAPI accept security context call unless explicitly overridden during the globus_xio_register_open() call ( GLOBUS_XIO_GSI_FORCE_SERVER_MODE).

The gsi driver uses the following environment variables

• X509_USER_PROXY

• X509_USER_CERT

• X509_USER_KEY

• X509_CERT_DIR

For details see Globus: GSI Environment Variables

GSI driver specific attrs and cntls

See also:

globus_xio_attr_cntl ()

globus_xio_handle_cntl ()

The GSI driver uses mostly GSSAPI calls, so it generally just wraps the underlying GSSAPI errors or uses generic XIO errors.

See also:

globus_xio_driver_error_match ()

globus_error_gssapi_match ()

globus_error_match_openssl_error ()

typedef void(* globus_xio_gsi_delegation_accept_callback_t)(globus_result_t result, gss_cred_id_t delegated_cred, OM_uint32 time_rec, void *user_arg)

Globus XIO GSI init delegation callback

typedef void(* globus_xio_gsi_delegation_init_callback_t)(globus_result_t result, void *user_arg)

Globus XIO GSI init delegation callback

enum \fBglobus_xio_gsi_authorization_mode_t\fP

Globus XIO GSI authorization modes

Enumerator

GLOBUS_XIO_GSI_NO_AUTHORIZATION

Do not perform any authorization. This will cause a error when used in conjunction with delegation on the init/client side.

GLOBUS_XIO_GSI_SELF_AUTHORIZATION

Authorize the peer if the peer has the same identity as ourselves

GLOBUS_XIO_GSI_IDENTITY_AUTHORIZATION

Authorize the peer if the peer identity matches the identity set in the target name.

GLOBUS_XIO_GSI_HOST_AUTHORIZATION

Authorize the peer if the identity of the peer matches the identity of the peer hostname.

enum \fBglobus_xio_gsi_cmd_t\fP

GSI driver specific cntls

Enumerator

GLOBUS_XIO_GSI_SET_CREDENTIAL

See usage for: globus_xio_gsi_attr_cntl , globus_xio_gsi_handle_cntl

GLOBUS_XIO_GSI_GET_CREDENTIAL

See usage for: globus_xio_gsi_attr_cntl , globus_xio_gsi_handle_cntl

GLOBUS_XIO_GSI_SET_GSSAPI_REQ_FLAGS

See usage for: globus_xio_gsi_attr_cntl

GLOBUS_XIO_GSI_GET_GSSAPI_REQ_FLAGS

See usage for: globus_xio_gsi_attr_cntl

GLOBUS_XIO_GSI_SET_PROXY_MODE

See usage for: globus_xio_gsi_attr_cntl

GLOBUS_XIO_GSI_GET_PROXY_MODE

See usage for: globus_xio_gsi_attr_cntl

GLOBUS_XIO_GSI_SET_AUTHORIZATION_MODE

See usage for: globus_xio_gsi_attr_cntl

GLOBUS_XIO_GSI_GET_AUTHORIZATION_MODE

See usage for: globus_xio_gsi_attr_cntl

GLOBUS_XIO_GSI_SET_DELEGATION_MODE

See usage for: globus_xio_gsi_attr_cntl

GLOBUS_XIO_GSI_GET_DELEGATION_MODE

See usage for: globus_xio_gsi_attr_cntl

GLOBUS_XIO_GSI_SET_SSL_COMPATIBLE

See usage for: globus_xio_gsi_attr_cntl

GLOBUS_XIO_GSI_SET_ANON

See usage for: globus_xio_gsi_attr_cntl

GLOBUS_XIO_GSI_SET_WRAP_MODE

See usage for: globus_xio_gsi_attr_cntl

GLOBUS_XIO_GSI_GET_WRAP_MODE

See usage for: globus_xio_gsi_attr_cntl

GLOBUS_XIO_GSI_SET_BUFFER_SIZE

See usage for: globus_xio_gsi_attr_cntl

GLOBUS_XIO_GSI_GET_BUFFER_SIZE

See usage for: globus_xio_gsi_attr_cntl

GLOBUS_XIO_GSI_SET_PROTECTION_LEVEL

See usage for: globus_xio_gsi_attr_cntl

GLOBUS_XIO_GSI_GET_PROTECTION_LEVEL

See usage for: globus_xio_gsi_attr_cntl

GLOBUS_XIO_GSI_GET_TARGET_NAME

See usage for: globus_xio_gsi_attr_cntl

GLOBUS_XIO_GSI_SET_TARGET_NAME

See usage for: globus_xio_gsi_attr_cntl

GLOBUS_XIO_GSI_GET_CONTEXT

See usage for: globus_xio_gsi_handle_cntl

GLOBUS_XIO_GSI_GET_DELEGATED_CRED

See usage for: globus_xio_gsi_handle_cntl

GLOBUS_XIO_GSI_GET_PEER_NAME

See usage for: globus_xio_gsi_handle_cntl

GLOBUS_XIO_GSI_GET_LOCAL_NAME

See usage for: globus_xio_gsi_handle_cntl

GLOBUS_XIO_GSI_INIT_DELEGATION

See usage for: globus_xio_gsi_handle_cntl

GLOBUS_XIO_GSI_REGISTER_INIT_DELEGATION

See usage for: globus_xio_gsi_handle_cntl

GLOBUS_XIO_GSI_ACCEPT_DELEGATION

See usage for: globus_xio_gsi_handle_cntl

GLOBUS_XIO_GSI_REGISTER_ACCEPT_DELEGATION

See usage for: globus_xio_gsi_handle_cntl

GLOBUS_XIO_GSI_FORCE_SERVER_MODE

See usage for: globus_xio_gsi_attr_cntl

GLOBUS_XIO_GSI_SET_ALLOW_MISSING_SIGNING_POLICY

See usage for: globus_xio_gsi_attr_cntl

GLOBUS_XIO_GSI_GET_ALLOW_MISSING_SIGNING_POLICY

See usage for: globus_xio_gsi_attr_cntl

enum \fBglobus_xio_gsi_delegation_mode_t\fP

Globus XIO GSI delegation modes

Enumerator

GLOBUS_XIO_GSI_DELEGATION_MODE_NONE

No delegation

GLOBUS_XIO_GSI_DELEGATION_MODE_LIMITED

Delegate a limited proxy

GLOBUS_XIO_GSI_DELEGATION_MODE_FULL

Delegate a full proxy

enum \fBglobus_xio_gsi_error_t\fP

GSI driver specific error types

Enumerator

GLOBUS_XIO_GSI_ERROR_INVALID_PROTECTION_LEVEL

Indicates that the established context does not meet the required protection level

GLOBUS_XIO_GSI_ERROR_WRAP_GSSAPI

Wraps a GSSAPI error

GLOBUS_XIO_GSI_ERROR_EMPTY_TARGET_NAME

Indicates that GLOBUS_XIO_GSI_IDENTITY_AUTHORIZATION is set but that the target name is empty

GLOBUS_XIO_GSI_ERROR_EMPTY_HOST_NAME

Indicates that GLOBUS_XIO_GSI_HOST_AUTHORIZATION is set but that no host name is available

GLOBUS_XIO_GSI_AUTHORIZATION_FAILED

Indicates that the peer is not authorized

GLOBUS_XIO_GSI_ERROR_TOKEN_TOO_BIG

Indicates the token being read is too big. Usually happens when someone tries to establish a non secure session with a endpoint that expects security

enum \fBglobus_xio_gsi_protection_level_t\fP

Globus XIO GSI protection levels

Enumerator

GLOBUS_XIO_GSI_PROTECTION_LEVEL_NONE

No security

GLOBUS_XIO_GSI_PROTECTION_LEVEL_INTEGRITY

Messages are signed

GLOBUS_XIO_GSI_PROTECTION_LEVEL_PRIVACY

Messages are signed and encrypted

enum \fBglobus_xio_gsi_proxy_mode_t\fP

Globus XIO GSI proxy modes

Enumerator

GLOBUS_XIO_GSI_PROXY_MODE_FULL

Accept only full proxies

GLOBUS_XIO_GSI_PROXY_MODE_LIMITED

Accept full proxies and limited proxies if they are the only limited proxy in the cert chain.

GLOBUS_XIO_GSI_PROXY_MODE_MANY

Accept both full and limited proxies unconditionally

globus_result_t globus_xio_gsi_attr_cntl (attr, driver, \fBGLOBUS_XIO_GSI_SET_CREDENTIAL\fP, gss_cred_id_tcredential)

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. Set the credential to be used

Parameters:

credential The credential to set. The credential structure needs to remain valid for the lifetime of any XIO data structure it is used by.

Note:

If this is called with the handle_cntl, there must be no outstanding operations on the handle.

globus_result_t globus_xio_gsi_attr_cntl (attr, driver, \fBGLOBUS_XIO_GSI_GET_CREDENTIAL\fP, gss_cred_id_t *credential)

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. Get the credential to be used

Parameters:

credential The credential that is currently set. This will only return a credential if a credential was explicitly set prior to this call. It will not return any credential automatically acquired during context initialization.

globus_result_t globus_xio_gsi_attr_cntl (attr, driver, \fBGLOBUS_XIO_GSI_SET_GSSAPI_REQ_FLAGS\fP, OM_uint32req_flags)

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. Set the GSSAPI req_flags to be used

Parameters:

req_flags The req_flags to set

globus_result_t globus_xio_gsi_attr_cntl (attr, driver, \fBGLOBUS_XIO_GSI_GET_GSSAPI_REQ_FLAGS\fP, OM_uint32 *req_flags)

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. Get the GSSAPI req_flags to be used

Parameters:

req_flags The req flags currently in effect

globus_result_t globus_xio_gsi_attr_cntl (attr, driver, \fBGLOBUS_XIO_GSI_SET_PROXY_MODE\fP, \fBglobus_xio_gsi_proxy_mode_t\fPproxy_mode)

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. Set the proxy mode

Parameters:

proxy_mode The proxy mode to set

Note:

Changing the proxy mode changes the req_flags

globus_result_t globus_xio_gsi_attr_cntl (attr, driver, \fBGLOBUS_XIO_GSI_GET_PROXY_MODE\fP, \fBglobus_xio_gsi_proxy_mode_t\fP *proxy_mode)

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. Get the proxy mode

Parameters:

proxy_mode The proxy mode that is currently in effect

Note:

Changing the proxy mode changes the req_flags

globus_result_t globus_xio_gsi_attr_cntl (attr, driver, \fBGLOBUS_XIO_GSI_SET_AUTHORIZATION_MODE\fP, \fBglobus_xio_gsi_authorization_mode_t\fPauthz_mode)

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. Set the authorization mode

Parameters:

authz_mode The authorization mode to set

globus_result_t globus_xio_gsi_attr_cntl (attr, driver, \fBGLOBUS_XIO_GSI_GET_AUTHORIZATION_MODE\fP, \fBglobus_xio_gsi_authorization_mode_t\fP *authz_mode)

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. Get the authorization mode

Parameters:

authz_mode The authorization mode that is currently in effect

globus_result_t globus_xio_gsi_attr_cntl (attr, driver, \fBGLOBUS_XIO_GSI_SET_DELEGATION_MODE\fP, \fBglobus_xio_gsi_delegation_mode_t\fPdelegation_mode)

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. Set the delegation mode

Parameters:

delegation_mode The delegation mode to use

Note:

Changing the delegation mode changes the req_flags

globus_result_t globus_xio_gsi_attr_cntl (attr, driver, \fBGLOBUS_XIO_GSI_GET_DELEGATION_MODE\fP, \fBglobus_xio_gsi_delegation_mode_t\fP *delegation_mode)

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. Get the delegation mode

Parameters:

delegation_mode The delegation mode currently in effect

globus_result_t globus_xio_gsi_attr_cntl (attr, driver, \fBGLOBUS_XIO_GSI_SET_SSL_COMPATIBLE\fP, globus_bool_tssl_mode)

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. Make the on the wire protocol SSL compatible.

This implies no wrapping of security tokens and no delegation

Parameters:

ssl_mode The ssl compatibility mode to use

Note:

Changing the ssl compatibility mode changes the req_flags

globus_result_t globus_xio_gsi_attr_cntl (attr, driver, \fBGLOBUS_XIO_GSI_SET_ANON\fP, globus_bool_tanon_mode)

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. Do anonymous authentication

Parameters:

anon_mode The ssl compatibility mode to use

Note:

Changing the ssl compatibility mode changes the req_flags and the wrapping mode

globus_result_t globus_xio_gsi_attr_cntl (attr, driver, \fBGLOBUS_XIO_GSI_SET_WRAP_MODE\fP, globus_bool_twrap_mode)

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. Set the wrapping mode

This mode determines whether tokens will be wrapped with a Globus IO style header or not.

Parameters:

wrap_mode The wrapping mode to use

globus_result_t globus_xio_gsi_attr_cntl (attr, driver, \fBGLOBUS_XIO_GSI_GET_WRAP_MODE\fP, globus_bool_t *wrap_mode)

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. Get the wrapping mode

This mode determines whether tokens will be wrapped with a Globus IO style header or not.

Parameters:

wrap_mode The wrapping mode currently in use.

globus_result_t globus_xio_gsi_attr_cntl (attr, driver, \fBGLOBUS_XIO_GSI_SET_BUFFER_SIZE\fP, globus_size_tbuffer_size)

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. Set the read buffer size

The read buffer is used for buffering wrapped data, is initialized with a default size of 128K and scaled dynamically to always be able to fit whole tokens.

Parameters:

buffer_size The size of the read buffer

globus_result_t globus_xio_gsi_attr_cntl (attr, driver, \fBGLOBUS_XIO_GSI_GET_BUFFER_SIZE\fP, globus_size_t *buffer_size)

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. Get the read buffer size

The read buffer is used for buffering wrapped data, is initialized with a default size of 128K and scaled dynamically to always be able to fit whole tokens.

Parameters:

buffer_size The size of the read buffer

globus_result_t globus_xio_gsi_attr_cntl (attr, driver, \fBGLOBUS_XIO_GSI_SET_PROTECTION_LEVEL\fP, \fBglobus_xio_gsi_protection_level_t\fPprotection_level)

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. Set the protection level

Parameters:

protection_level The protection level to set

Note:

Changing the proxy mode changes the req_flags

globus_result_t globus_xio_gsi_attr_cntl (attr, driver, \fBGLOBUS_XIO_GSI_GET_PROTECTION_LEVEL\fP, \fBglobus_xio_gsi_protection_level_t\fP *protection_level)

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. Get the protection level

Parameters:

protection_level The current protection level

globus_result_t globus_xio_gsi_attr_cntl (attr, driver, \fBGLOBUS_XIO_GSI_GET_TARGET_NAME\fP, gss_name_t *target_name)

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. Set the expected peer name

Parameters:

target_name The expected peer name

globus_result_t globus_xio_gsi_attr_cntl (attr, driver, \fBGLOBUS_XIO_GSI_SET_TARGET_NAME\fP, gss_name_ttarget_name)

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. Get the expected peer name

Parameters:

target_name The expected peer name

globus_result_t globus_xio_gsi_attr_cntl (attr, driver, \fBGLOBUS_XIO_GSI_FORCE_SERVER_MODE\fP, globus_bool_tserver_mode)

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. Force the server mode setting.

This explicitly sets the directionality of context establishment and delegation.

Parameters:

server_mode The server mode.

globus_result_t globus_xio_gsi_attr_cntl (attr, driver, \fBGLOBUS_XIO_GSI_SET_ALLOW_MISSING_SIGNING_POLICY\fP, globus_bool_tallow)

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. Set the allow missing signing policy flag

Parameters:

allow The flag setting to use

Note:

Changing this flag changes the req_flags

globus_result_t globus_xio_gsi_attr_cntl (attr, driver, \fBGLOBUS_XIO_GSI_GET_ALLOW_MISSING_SIGNING_POLICY\fP, globus_bool_t *allow)

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. Get the allow missing signing policy flag

Parameters:

allow The flag currently set

globus_result_t globus_xio_gsi_handle_cntl (handle, driver, \fBGLOBUS_XIO_GSI_SET_CREDENTIAL\fP, gss_cred_id_tcredential)

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. Set the credential to be used

Parameters:

credential The credential to set. The credential structure needs to remain valid for the lifetime of any XIO data structure it is used by.

Note:

If this is called with the handle_cntl, there must be no outstanding operations on the handle.

globus_result_t globus_xio_gsi_handle_cntl (handle, driver, \fBGLOBUS_XIO_GSI_GET_CREDENTIAL\fP, gss_cred_id_t *credential)

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. Get the credential to be used

Parameters:

credential The credential that is currently set. This will only return a credential if a credential was explicitly set prior to this call. It will not return any credential automatically acquired during context initialization.

globus_result_t globus_xio_gsi_handle_cntl (handle, driver, \fBGLOBUS_XIO_GSI_GET_CONTEXT\fP, gss_ctx_id_t *context)

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. Get the GSS context

Parameters:

context The GSS context

globus_result_t globus_xio_gsi_handle_cntl (handle, driver, \fBGLOBUS_XIO_GSI_GET_DELEGATED_CRED\fP, gss_cred_id_t *credential)

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. Get the delegated credential

Parameters:

credential The delegated credential

globus_result_t globus_xio_gsi_handle_cntl (handle, driver, \fBGLOBUS_XIO_GSI_GET_PEER_NAME\fP, gss_name_t *peer_name)

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. Get the name of the peer

Parameters:

peer_name The GSS name of the peer.

globus_result_t globus_xio_gsi_handle_cntl (handle, driver, \fBGLOBUS_XIO_GSI_GET_LOCAL_NAME\fP, gss_name_t *local_name)

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. Get the GSS name associated with the local credentials

Parameters:

local_name The GSS name of the local credentials

globus_result_t globus_xio_gsi_handle_cntl (handle, driver, \fBGLOBUS_XIO_GSI_INIT_DELEGATION\fP, gss_cred_id_tcredential, gss_OID_setrestriction_oids, gss_buffer_set_trestriction_buffers, OM_uint32time_req)

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. Initialize delegation-at-any-time process

Parameters:

credential The GSS credential to delegate

restriction_oids The OIDs for X.509 extensions to embed in the delegated credential

restriction_buffers The corresponding bodies for the X.509 extensions

time_req The lifetime of the delegated credential

globus_result_t globus_xio_gsi_handle_cntl (handle, driver, \fBGLOBUS_XIO_GSI_REGISTER_INIT_DELEGATION\fP, gss_cred_id_tcredential, gss_OID_setrestriction_oids, gss_buffer_set_trestriction_buffers, OM_uint32time_req, \fBglobus_xio_gsi_delegation_init_callback_t\fPcallback, void *callback_arg)

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. Initialize non-blocking delegation-at-any-time process

Parameters:

credential The GSS credential to delegate

restriction_oids The OIDS for X.509 extensions to embed in the delegated credential

restriction_buffers The corresponding bodies for the X.509 extensions

time_req The lifetime of the delegated credential

callback The callback to call when the operation completes

callback_arg The arguments to pass to the callback

globus_result_t globus_xio_gsi_handle_cntl (handle, driver, \fBGLOBUS_XIO_GSI_ACCEPT_DELEGATION\fP, gss_cred_id_t *credential, gss_OID_setrestriction_oids, gss_buffer_set_trestriction_buffers, OM_uint32time_req)

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. Accept delegation-at-any-time process

Parameters:

credential The delegated GSS credential

restriction_oids The OIDS for X.509 extensions to embed in the delegated credential

restriction_buffers The corresponding bodies for the X.509 extensions

time_req The requested lifetime of the delegated credential

globus_result_t globus_xio_gsi_handle_cntl (handle, driver, \fBGLOBUS_XIO_GSI_REGISTER_ACCEPT_DELEGATION\fP, gss_OID_setrestriction_oids, gss_buffer_set_trestriction_buffers, OM_uint32time_req, \fBglobus_xio_gsi_delegation_accept_callback_t\fPcallback, void *callback_arg)

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. Accept non-blocking delegation-at-any-time process

Parameters:

restriction_oids The OIDS for X.509 extensions to embed in the delegated credential

restriction_buffers The corresponding bodies for the X.509 extensions

time_req The lifetime of the delegated credential

callback The callback to call when the operation completes

callback_arg The arguments to pass to the callback

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