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freebsd/lib/libgssapi/gss_process_context_token.3
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.\" Copyright (c) 2005 Doug Rabson
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.Dd January 26, 2010
.Dt GSS_PROCESS_CONTEXT_TOKEN 3 PRM
.Os
.Sh NAME
.Nm gss_process_context_token
.Nd Process a token on a security context from a peer application
.\" This next command is for sections 2 and 3 only.
.\" .Sh LIBRARY
.Sh SYNOPSIS
.In "gssapi/gssapi.h"
.Ft OM_uint32
.Fo gss_process_context_token
.Fa "OM_uint32 *minor_status"
.Fa "const gss_ctx_id_t context_handle"
.Fa "const gss_buffer_t token_buffer"
.Fc
.Sh DESCRIPTION
Provides a way to pass an asynchronous token to the security service.
Most context-level tokens are emitted and processed synchronously by
.Fn gss_init_sec_context
and
.Fn gss_accept_sec_context ,
and the application is informed as to whether further tokens are
expected by the
.Dv GSS_C_CONTINUE_NEEDED
major status bit.
Occasionally,
a mechanism may need to emit a context-level token at a point when the
peer entity is not expecting a token.
For example,
the initiator's final call to
.Fn gss_init_sec_context
may emit a token and return a status of
.Dv GSS_S_COMPLETE ,
but the acceptor's call to
.Fn gss_accept_sec_context
may fail.
The acceptor's mechanism may wish to send a token containing an error
indication to the initiator,
but the initiator is not expecting a token at this point,
believing that the context is fully established.
.Fn gss_process_context_token
provides a way to pass such a token to the mechanism at any time.
.Sh PARAMETERS
.Bl -tag -width ".It context_handle"
.It minor_status
Mechanism specific status code.
.It context_handle
Context handle of context on which token is to be processed.
.It token_buffer
Token to process.
.El
.Sh RETURN VALUES
.Bl -tag -width ".It GSS_S_DEFECTIVE_TOKEN"
.It GSS_S_COMPLETE
Successful completion
.It GSS_S_DEFECTIVE_TOKEN
Indicates that consistency checks performed on the token failed
.It GSS_S_NO_CONTEXT
The
.Fa context_handle
did not refer to a valid context
.El
.Sh SEE ALSO
.Xr gss_accept_sec_context 3 ,
.Xr gss_init_sec_context 3
.Sh STANDARDS
.Bl -tag -width ".It RFC 2743"
.It RFC 2743
Generic Security Service Application Program Interface Version 2, Update 1
.It RFC 2744
Generic Security Service API Version 2 : C-bindings
.El
.Sh HISTORY
The
.Nm
function first appeared in
.Fx 7.0 .
.Sh AUTHORS
John Wray, Iris Associates
.Sh COPYRIGHT
Copyright (C) The Internet Society (2000). All Rights Reserved.
.Pp
This document and translations of it may be copied and furnished to
others, and derivative works that comment on or otherwise explain it
or assist in its implementation may be prepared, copied, published
and distributed, in whole or in part, without restriction of any
kind, provided that the above copyright notice and this paragraph are
included on all such copies and derivative works. However, this
document itself may not be modified in any way, such as by removing
the copyright notice or references to the Internet Society or other
Internet organizations, except as needed for the purpose of
developing Internet standards in which case the procedures for
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followed, or as required to translate it into languages other than
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.Pp
The limited permissions granted above are perpetual and will not be
revoked by the Internet Society or its successors or assigns.
.Pp
This document and the information contained herein is provided on an
"AS IS" basis and THE INTERNET SOCIETY AND THE INTERNET ENGINEERING
TASK FORCE DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING
BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION
HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.