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423 giacomo 1
/*
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 * linux/include/linux/auth_gss.h
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 *
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 * Declarations for RPCSEC_GSS
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 *
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 * Dug Song <dugsong@monkey.org>
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 * Andy Adamson <andros@umich.edu>
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 * Bruce Fields <bfields@umich.edu>
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 * Copyright (c) 2000 The Regents of the University of Michigan
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 *
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 * $Id: auth_gss.h,v 1.1 2004-01-28 15:31:11 giacomo Exp $
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 */
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#ifndef _LINUX_SUNRPC_AUTH_GSS_H
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#define _LINUX_SUNRPC_AUTH_GSS_H
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#ifdef __KERNEL__
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#ifdef __linux__
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#include <linux/sunrpc/auth.h>
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#include <linux/sunrpc/svc.h>
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#include <linux/sunrpc/gss_api.h>
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#endif
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#define RPC_GSS_VERSION         1
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#define MAXSEQ 0x80000000 /* maximum legal sequence number, from rfc 2203 */
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enum rpc_gss_proc {
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        RPC_GSS_PROC_DATA = 0,
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        RPC_GSS_PROC_INIT = 1,
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        RPC_GSS_PROC_CONTINUE_INIT = 2,
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        RPC_GSS_PROC_DESTROY = 3
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};
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enum rpc_gss_svc {
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        RPC_GSS_SVC_NONE = 1,
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        RPC_GSS_SVC_INTEGRITY = 2,
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        RPC_GSS_SVC_PRIVACY = 3
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};
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/* on-the-wire gss cred: */
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struct rpc_gss_wire_cred {
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        u32                     gc_v;           /* version */
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        u32                     gc_proc;        /* control procedure */
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        u32                     gc_seq;         /* sequence number */
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        u32                     gc_svc;         /* service */
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        struct xdr_netobj       gc_ctx;         /* context handle */
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};
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/* on-the-wire gss verifier: */
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struct rpc_gss_wire_verf {
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        u32                     gv_flavor;
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        struct xdr_netobj       gv_verf;
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};
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/* return from gss NULL PROC init sec context */
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struct rpc_gss_init_res {
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        struct xdr_netobj       gr_ctx;         /* context handle */
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        u32                     gr_major;       /* major status */
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        u32                     gr_minor;       /* minor status */
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        u32                     gr_win;         /* sequence window */
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        struct xdr_netobj       gr_token;       /* token */
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};
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#define GSS_SEQ_WIN     5
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/* The gss_cl_ctx struct holds all the information the rpcsec_gss client
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 * code needs to know about a single security context.  In particular,
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 * gc_gss_ctx is the context handle that is used to do gss-api calls, while
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 * gc_wire_ctx is the context handle that is used to identify the context on
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 * the wire when communicating with a server. */
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struct gss_cl_ctx {
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        atomic_t                count;
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        u32                     gc_proc;
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        u32                     gc_seq;
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        spinlock_t              gc_seq_lock;
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        struct gss_ctx          *gc_gss_ctx;
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        struct xdr_netobj       gc_wire_ctx;
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        u32                     gc_win;
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};
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struct gss_cred {
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        struct rpc_cred         gc_base;
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        u32                     gc_flavor;
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        struct gss_cl_ctx       *gc_ctx;
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};
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#define gc_uid                  gc_base.cr_uid
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#define gc_count                gc_base.cr_count
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#define gc_flags                gc_base.cr_flags
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#define gc_expire               gc_base.cr_expire
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void print_hexl(u32 *p, u_int length, u_int offset);
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#endif /* __KERNEL__ */
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#endif /* _LINUX_SUNRPC_AUTH_GSS_H */
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