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GSS_DELETE_SEC_CONTEXT(3) Programmer's Manual GSS_DELETE_SEC_CONTEXT(3) NAME gss_delete_sec_context -- Discard a security context SYNOPSIS #include <gssapi/gssapi.h> OM_uint32 gss_delete_sec_context(OM_uint32 *minor_status, gss_ctx_id_t *context_handle, gss_buffer_t output_token); DESCRIPTION Delete a security context. gss_delete_sec_context() will delete the lo- cal data structures associated with the specified security context, and may generate an output_token, which when passed to the peer gss_process_context_token() will instruct it to do likewise. If no token is required by the mechanism, the GSS-API should set the length field of the output_token (if provided) to zero. No further security services may be obtained using the context specified by context_handle. In addition to deleting established security contexts, gss_delete_sec_context() must also be able to delete "half-built" secu- rity contexts resulting from an incomplete sequence of gss_init_sec_context() / gss_accept_sec_context() calls. The output_token parameter is retained for compatibility with version 1 of the GSS-API. It is recommended that both peer applications invoke gss_delete_sec_context() passing the value GSS_C_NO_BUFFER for the output_token parameter, indicating that no token is required, and that gss_delete_sec_context() should simply delete local context data struc- tures. If the application does pass a valid buffer to gss_delete_sec_context(), mechanisms are encouraged to return a zero- length token, indicating that no peer action is necessary, and that no token should be transferred by the application. PARAMETERS minor_status Mechanism specific status code. context_handle Context handle identifying context to delete. After deleting the context, the GSS-API will set this context handle to GSS_C_NO_CONTEXT. output_token Token to be sent to remote application to instruct it to also delete the context. It is recommended that applica- tions specify GSS_C_NO_BUFFER for this parameter, re- questing local deletion only. If a buffer parameter is provided by the application, the mechanism may return a token in it; mechanisms that implement only local dele- tion should set the length field of this token to zero to indicate to the application that no token is to be sent to the peer. RETURN VALUES GSS_S_COMPLETE Successful completion GSS_S_NO_CONTEXT No valid context was supplied SEE ALSO gss_accept_sec_context(3), gss_init_sec_context(3), gss_process_context_token(3) STANDARDS RFC 2743 Generic Security Service Application Program Interface Version 2, Update 1 RFC 2744 Generic Security Service API Version 2 : C-bindings HISTORY The gss_delete_sec_context function first appeared in FreeBSD 7.0. AUTHORS John Wray, Iris Associates COPYRIGHT Copyright (C) The Internet Society (2000). All Rights Reserved. This document and translations of it may be copied and furnished to oth- ers, and derivative works that comment on or otherwise explain it or as- sist in its implementation may be prepared, copied, published and dis- tributed, 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 ref- erences to the Internet Society or other Internet organizations, except as needed for the purpose of developing Internet standards in which case the procedures for copyrights defined in the Internet Standards process must be followed, or as required to translate it into languages other than English. The limited permissions granted above are perpetual and will not be re- voked by the Internet Society or its successors or assigns. 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 FIT- NESS FOR A PARTICULAR PURPOSE. BSD January 26, 2010 BSD
NAME | SYNOPSIS | DESCRIPTION | PARAMETERS | RETURN VALUES | SEE ALSO | STANDARDS | HISTORY | AUTHORS | COPYRIGHT
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