gss_inquire_context(3)							gss						    gss_inquire_context(3)

NAME

       gss_inquire_context - API function

SYNOPSIS

       #include <gss.h>

       OM_uint32  gss_inquire_context(OM_uint32  * minor_status, const gss_ctx_id_t context_handle, gss_name_t * src_name, gss_name_t * targ_name,
       OM_uint32 * lifetime_rec, gss_OID * mech_type, OM_uint32 * ctx_flags, int * locally_initiated, int * open);

ARGUMENTS

       OM_uint32 * minor_status
		   (Integer, modify) Mechanism specific status code.

       const gss_ctx_id_t context_handle
		   (gss_ctx_id_t, read) A handle that refers to the
		     security context.

       gss_name_t * src_name
		   (gss_name_t, modify, optional) The name of the context
		     initiator.  If the context was established using anonymous
		     authentication, and if the application invoking
		     gss_inquire_context is the context acceptor, an anonymous name
		     will be returned.	Storage associated with this name must be
		     freed by the application after use with a call to
		     gss_release_name().  Specify NULL if not required.

       gss_name_t * targ_name
		   (gss_name_t, modify, optional) The name of the context
		     acceptor.	Storage associated with this name must be freed by the
		     application after use with a call to gss_release_name().  If the
		     context acceptor did not authenticate itself, and if the
		     initiator did not specify a target name in its call to
		     gss_init_sec_context(), the value GSS_C_NO_NAME will be returned.
		     Specify NULL if not required.

       OM_uint32 * lifetime_rec
		   (Integer, modify, optional) The number of seconds
		     for which the context will remain valid.  If the context has
		     expired, this parameter will be set to zero.  If the
		     implementation does not support context expiration, the value
		     GSS_C_INDEFINITE will be returned.  Specify NULL if not required.

       gss_OID * mech_type
		   (gss_OID, modify, optional) The security mechanism
		     providing the context.  The returned OID will be a pointer to
		     static storage that should be treated as read-only by the
		     application; in particular the application should not attempt to
		     free it.  Specify NULL if not required.

       OM_uint32 * ctx_flags
		   (bit-mask, modify, optional) Contains various
		     independent flags, each of which indicates that the context
		     supports (or is expected to support, if ctx_open is false) a
		     specific service option.  If not needed, specify NULL.  Symbolic
		     names are provided for each flag, and the symbolic names
		     corresponding to the required flags should be logically-ANDed
		     with the ret_flags value to test whether a given option is
		     supported by the context.	See below for the flags.

       int * locally_initiated
		   (Boolean, modify) Non-zero if the invoking
		     application is the context initiator.  Specify NULL if not
		     required.

       int * open  (Boolean, modify) Non-zero if the context is fully
		     established; Zero if a context-establishment token is expected
		     from the peer application.  Specify NULL if not required.

DESCRIPTION

       Obtains information about a security context.  The caller must already have obtained a handle that refers to the context, although the con-
       text need not be fully established.

       The `ctx_flags` values:

       `GSS_C_DELEG_FLAG`:: - True - Credentials were delegated from the initiator to the acceptor.  - False - No credentials were delegated.

       `GSS_C_MUTUAL_FLAG`:: - True - The acceptor was authenticated to the initiator.	- False - The acceptor did not authenticate itself.

       `GSS_C_REPLAY_FLAG`:: - True - replay of protected messages will be detected.  - False - replayed messages will not be detected.

       `GSS_C_SEQUENCE_FLAG`::	-  True  -  out-of-sequence  protected	messages will be detected.  - False - out-of-sequence messages will not be
       detected.

       `GSS_C_CONF_FLAG`:: - True - Confidentiality service may be invoked by calling gss_wrap routine.  - False - No confidentiality service (via
       gss_wrap) available. gss_wrap will provide message encapsulation, data-origin authentication and integrity services only.

       `GSS_C_INTEG_FLAG`::  -	True - Integrity service may be invoked by calling either gss_get_mic or gss_wrap routines.  - False - Per-message
       integrity service unavailable.

       `GSS_C_ANON_FLAG`:: - True - The initiator's identity will not be revealed to the acceptor.  The src_name parameter (if requested) contains
       an anonymous internal name.  - False - The initiator has been authenticated normally.

       `GSS_C_PROT_READY_FLAG`::  - True - Protection services (as specified by the states of the GSS_C_CONF_FLAG and GSS_C_INTEG_FLAG) are avail-
       able for use.  - False - Protection services (as specified by the states of the GSS_C_CONF_FLAG and GSS_C_INTEG_FLAG) are available only if
       the context is fully established (i.e. if the open parameter is non-zero).

       `GSS_C_TRANS_FLAG`::  - True - The resultant security context may be transferred to other processes via a call to gss_export_sec_context().
       - False - The security context is not transferable.

RETURN VALUE

       `GSS_S_COMPLETE`: Successful completion.

       `GSS_S_NO_CONTEXT`: The referenced context could not be accessed.

REPORTING BUGS

       Report bugs to <bug-gss@gnu.org>.  GNU Generic Security Service home page: http://www.gnu.org/software/gss/ General help  using	GNU  soft-
       ware: http://www.gnu.org/gethelp/

COPYRIGHT

       Copyright (C) 2003-2011 Simon Josefsson.
       Copying	and  distribution  of  this file, with or without modification, are permitted in any medium without royalty provided the copyright
       notice and this notice are preserved.

SEE ALSO

       The full documentation for gss is maintained as a Texinfo manual.  If the info and gss programs are properly installed at  your	site,  the
       command

	      info gss

       should give you access to the complete manual.

gss								       1.0.2						    gss_inquire_context(3)