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