GSS_WRAP(3GSS)GSS_WRAP(3GSS)NAMEgss_wrap - attach a cryptographic message
SYNOPSIS
cc [ flag... ] file... -lgss [ library... ]
#include <gssapi/gssapi.h>
OM_uint32 gss_wrap(OM_uint32 *minor_status,
const gss_ctx_id_t context_handle, int conf_req_flag,
gss_qop_t qop_req, const gss_buffer_t input_message_buffer,
int *conf_state, gss_buffer_t output_message_buffer);
DESCRIPTION
The gss_wrap() function attaches a cryptographic MIC and optionally
encrypts the specified input_message. The output_message contains both
the MIC and the message. The qop_req parameter allows a choice between
several cryptographic algorithms, if supported by the chosen mechanism.
Since some application-level protocols may wish to use tokens emitted
by gss_wrap() to provide secure framing, the GSS-API supports the wrap‐
ping of zero-length messages.
PARAMETERS
The parameter descriptions for gss_wrap() follow:
minor_status
The status code returned by the underlying
mechanism.
context_handle
Identifies the context on which the message
will be sent.
conf_req_flag
If the value of conf_req_flag is non-zero,
both confidentiality and integrity services
are requested. If the value is zero, then only
integrity service is requested.
qop_req
Specifies the 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.
input_message_buffer
The message to be protected.
conf_state
If the value of conf_state is non-zero, confi‐
dentiality, data origin authentication, and
integrity services have been applied. If the
value is zero, then integrity services have
been applied. Specify NULL if this parameter
is not required.
output_message_buffer
The buffer to receive the protected message.
Storage associated with this message must be
freed by the application after use with a call
to gss_release_buffer(3GSS).
ERRORSgss_wrap() may return the following status codes:
GSS_S_COMPLETE
Successful completion.
GSS_S_CONTEXT_EXPIRED
The context has already expired.
GSS_S_NO_CONTEXT
The context_handle parameter did not identify
a valid context.
GSS_S_BAD_QOP
The specified QOP is not supported by the
mechanism.
GSS_S_FAILURE
The underlying mechanism detected an error for
which no specific GSS status code is defined.
The mechanism-specific status code reported by
means of the minor_status parameter details
the error condition.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
┌───────────────┬─────────────────┐
│ATTRIBUTE TYPE │ ATTRIBUTE VALUE │
├───────────────┼─────────────────┤
│MT-Level │ Safe │
└───────────────┴─────────────────┘
SEE ALSOgss_release_buffer(3GSS), attributes(5)
Solaris Security for Developers Guide
Jan 15, 2003 GSS_WRAP(3GSS)
