Since some application-level protocols may wish to use tokens emitted by gss_wrap() to provide "secure framing", implementations must support the wrapping of zero-length messages.
The gss_seal() routine is an obsolete variant of gss_wrap(). It is provided for backwards compatibility with applications using the GSS-API V1 interface. A distinct entrypoint (as opposed to #define) is provided, both to allow GSS-API V1 applications to link and to retain the slight parameter type differences between the obsolete versions of this routine and its current form.
|Mechanism specific status code.
|Identifies the context on which the message will be sent.
|Both confidentiality and integrity services are requested.
|Only integrity service is requested.
|Specifies required quality of protection. A mechanism-specific default may be requested by setting qop_req to GSS_C_QOP_DEFAULT. If an unsupported protection strength is requested, gss_wrap() will return a major_status of GSS_S_BAD_QOP.
|Message to be protected.
|Confidentiality, data origin authentication and integrity services have been applied.
|Integrity and data origin services only has been applied.
|Buffer to receive protected message. Storage associated with this buffer must be freed by the application after use with a call to gss_release_buffer(3).
|The context has already expired
|The context_handle parameter did not identify a valid context.
|The specified QOP is not supported by the mechanism.
|Generic Security Service Application Program Interface Version 2, Update 1
|Generic Security Service API Version 2 : C-bindings
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|January 26, 2010