gss_wrap_size_limit - allow application to determine maximum message size with resulting output token of a specified maximum size
cc [ flag... ] file... -lgss [ library... ] #include <gssapi/gssapi.h> OM_uint32 gss_process_context_token(OM_uint32 *minor_status, const gss_ctx_id_t context_handle, int conf_req_flag, gss_qop_t qop_req, OM_uint32 req_output_size, OM_uint32 *max_input_size);
Generic Security Services API Library Functions gss_wrap_size_limit(3gss)
NAME
gss_wrap_size_limit - allow application to determine maximum message
size with resulting output token of a specified maximum size
SYNOPSIS
cc [ flag... ] file... -lgss [ library... ]
#include <gssapi/gssapi.h>
OM_uint32 gss_process_context_token(OM_uint32 *minor_status,
const gss_ctx_id_t context_handle, int conf_req_flag,
gss_qop_t qop_req, OM_uint32 req_output_size,
OM_uint32 *max_input_size);
DESCRIPTION
The gss_wrap_size_limit() function allows an application to determine
the maximum message size that, if presented to gss_wrap() with the same
conf_req_flag and qop_req parameters, results in an output token con-
taining no more than req_output_size bytes. This call is intended for
use by applications that communicate over protocols that impose a maxi-
mum message size. It enables the application to fragment messages prior
to applying protection. The GSS-API detects invalid QOP values when
gss_wrap_size_limit() is called. This routine guarantees only a maximum
message size, not the availability of specific QOP values for message
protection.
Successful completion of gss_wrap_size_limit() does not guarantee that
gss_wrap() will be able to protect a message of length max_input_size
bytes, since this ability might depend on the availability of system
resources at the time that gss_wrap() is called.
PARAMETERS
The parameter descriptions for gss_wrap_size_limit() are as follows:
minor_status A mechanism-specific status code.
context_handle A handle that refers to the security over which the
messages will be sent.
conf_req_flag Indicates whether gss_wrap() will be asked to apply
confidential protection in addition to integrity
protection. See gss_wrap(3GSS) for more details.
qop_req Indicates the level of protection that gss_wrap()
will be asked to provide. See gss_wrap(3GSS) for
more details.
req_output_size The desired maximum size for tokens emitted by
gss_wrap().
max_input_size The maximum input message size that can be presented
to gss_wrap() to guarantee that the emitted token
will be no larger than req_output_size bytes.
ERRORS
gss_wrap_size_limit() returns one of the following status codes:
GSS_S_COMPLETE Successful completion.
GSS_S_NO_CONTEXT The referenced context could not be accessed.
GSS_S_CONTEXT_EXPIRED The context has expired.
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(7) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|MT Level |Safe |
+-----------------------------+-----------------------------+
ATTRIBUTES
See attributes(7) for descriptions of the following attributes:
+---------------+------------------------+
|ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+---------------+------------------------+
|Availability | security/kerberos-5 |
+---------------+------------------------+
|Stability | Pass-through committed |
+---------------+------------------------+
SEE ALSO
gss_wrap(3GSS), attributes(7)
NOTES
Source code for open source software components in Oracle Solaris can
be found at https://www.oracle.com/downloads/opensource/solaris-source-
code-downloads.html.
This software was built from source available at
https://github.com/oracle/solaris-userland. The original community
source was downloaded from http://web.mit.edu/ker-
beros/dist/krb5/1.18/krb5-1.18.4.tar.gz.
Further information about this software can be found on the open source
community website at http://web.mit.edu/kerberos/.
Solaris 11.4 22 Aug 2011 gss_wrap_size_limit(3gss)