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)