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Linux/include/linux/sunrpc/auth_gss.h

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  1 /*
  2  * linux/include/linux/auth_gss.h
  3  *
  4  * Declarations for RPCSEC_GSS
  5  *
  6  * Dug Song <dugsong@monkey.org>
  7  * Andy Adamson <andros@umich.edu>
  8  * Bruce Fields <bfields@umich.edu>
  9  * Copyright (c) 2000 The Regents of the University of Michigan
 10  *
 11  * $Id$
 12  */
 13 
 14 #ifndef _LINUX_SUNRPC_AUTH_GSS_H
 15 #define _LINUX_SUNRPC_AUTH_GSS_H
 16 
 17 #ifdef __KERNEL__
 18 #ifdef __linux__
 19 #include <linux/sunrpc/auth.h>
 20 #include <linux/sunrpc/svc.h>
 21 #include <linux/sunrpc/gss_api.h>
 22 #endif
 23 
 24 #define RPC_GSS_VERSION         1
 25 
 26 #define MAXSEQ 0x80000000 /* maximum legal sequence number, from rfc 2203 */
 27 
 28 enum rpc_gss_proc {
 29         RPC_GSS_PROC_DATA = 0,
 30         RPC_GSS_PROC_INIT = 1,
 31         RPC_GSS_PROC_CONTINUE_INIT = 2,
 32         RPC_GSS_PROC_DESTROY = 3
 33 };
 34 
 35 enum rpc_gss_svc {
 36         RPC_GSS_SVC_NONE = 1,
 37         RPC_GSS_SVC_INTEGRITY = 2,
 38         RPC_GSS_SVC_PRIVACY = 3
 39 };
 40 
 41 /* on-the-wire gss cred: */
 42 struct rpc_gss_wire_cred {
 43         u32                     gc_v;           /* version */
 44         u32                     gc_proc;        /* control procedure */
 45         u32                     gc_seq;         /* sequence number */
 46         u32                     gc_svc;         /* service */
 47         struct xdr_netobj       gc_ctx;         /* context handle */
 48 };
 49 
 50 /* on-the-wire gss verifier: */
 51 struct rpc_gss_wire_verf {
 52         u32                     gv_flavor;
 53         struct xdr_netobj       gv_verf;
 54 };
 55 
 56 /* return from gss NULL PROC init sec context */
 57 struct rpc_gss_init_res {
 58         struct xdr_netobj       gr_ctx;         /* context handle */
 59         u32                     gr_major;       /* major status */
 60         u32                     gr_minor;       /* minor status */
 61         u32                     gr_win;         /* sequence window */
 62         struct xdr_netobj       gr_token;       /* token */
 63 };
 64 
 65 #define GSS_SEQ_WIN     5
 66 
 67 /* The gss_cl_ctx struct holds all the information the rpcsec_gss client
 68  * code needs to know about a single security context.  In particular,
 69  * gc_gss_ctx is the context handle that is used to do gss-api calls, while
 70  * gc_wire_ctx is the context handle that is used to identify the context on
 71  * the wire when communicating with a server. */
 72 
 73 struct gss_cl_ctx {
 74         atomic_t                count;
 75         u32                     gc_proc;
 76         u32                     gc_seq;
 77         spinlock_t              gc_seq_lock;
 78         struct gss_ctx          *gc_gss_ctx;
 79         struct xdr_netobj       gc_wire_ctx;
 80         u32                     gc_win;
 81 };
 82 
 83 struct gss_cred {
 84         struct rpc_cred         gc_base;
 85         u32                     gc_flavor;
 86         struct gss_cl_ctx       *gc_ctx;
 87 };
 88 
 89 #define gc_uid                  gc_base.cr_uid
 90 #define gc_count                gc_base.cr_count
 91 #define gc_flags                gc_base.cr_flags
 92 #define gc_expire               gc_base.cr_expire
 93 
 94 void print_hexl(u32 *p, u_int length, u_int offset);
 95 
 96 #endif /* __KERNEL__ */
 97 #endif /* _LINUX_SUNRPC_AUTH_GSS_H */
 98 
 99 

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