1 /*
2 * linux/include/linux/sunrpc/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
12 #ifndef _LINUX_SUNRPC_AUTH_GSS_H
13 #define _LINUX_SUNRPC_AUTH_GSS_H
14
15 #ifdef __KERNEL__
16 #include <linux/sunrpc/auth.h>
17 #include <linux/sunrpc/svc.h>
18 #include <linux/sunrpc/gss_api.h>
19
20 #define RPC_GSS_VERSION 1
21
22 #define MAXSEQ 0x80000000 /* maximum legal sequence number, from rfc 2203 */
23
24 enum rpc_gss_proc {
25 RPC_GSS_PROC_DATA = 0,
26 RPC_GSS_PROC_INIT = 1,
27 RPC_GSS_PROC_CONTINUE_INIT = 2,
28 RPC_GSS_PROC_DESTROY = 3
29 };
30
31 enum rpc_gss_svc {
32 RPC_GSS_SVC_NONE = 1,
33 RPC_GSS_SVC_INTEGRITY = 2,
34 RPC_GSS_SVC_PRIVACY = 3
35 };
36
37 /* on-the-wire gss cred: */
38 struct rpc_gss_wire_cred {
39 u32 gc_v; /* version */
40 u32 gc_proc; /* control procedure */
41 u32 gc_seq; /* sequence number */
42 u32 gc_svc; /* service */
43 struct xdr_netobj gc_ctx; /* context handle */
44 };
45
46 /* on-the-wire gss verifier: */
47 struct rpc_gss_wire_verf {
48 u32 gv_flavor;
49 struct xdr_netobj gv_verf;
50 };
51
52 /* return from gss NULL PROC init sec context */
53 struct rpc_gss_init_res {
54 struct xdr_netobj gr_ctx; /* context handle */
55 u32 gr_major; /* major status */
56 u32 gr_minor; /* minor status */
57 u32 gr_win; /* sequence window */
58 struct xdr_netobj gr_token; /* token */
59 };
60
61 /* The gss_cl_ctx struct holds all the information the rpcsec_gss client
62 * code needs to know about a single security context. In particular,
63 * gc_gss_ctx is the context handle that is used to do gss-api calls, while
64 * gc_wire_ctx is the context handle that is used to identify the context on
65 * the wire when communicating with a server. */
66
67 struct gss_cl_ctx {
68 atomic_t count;
69 enum rpc_gss_proc gc_proc;
70 u32 gc_seq;
71 spinlock_t gc_seq_lock;
72 struct gss_ctx *gc_gss_ctx;
73 struct xdr_netobj gc_wire_ctx;
74 struct xdr_netobj gc_acceptor;
75 u32 gc_win;
76 unsigned long gc_expiry;
77 struct rcu_head gc_rcu;
78 };
79
80 struct gss_upcall_msg;
81 struct gss_cred {
82 struct rpc_cred gc_base;
83 enum rpc_gss_svc gc_service;
84 struct gss_cl_ctx __rcu *gc_ctx;
85 struct gss_upcall_msg *gc_upcall;
86 const char *gc_principal;
87 unsigned long gc_upcall_timestamp;
88 };
89
90 #endif /* __KERNEL__ */
91 #endif /* _LINUX_SUNRPC_AUTH_GSS_H */
92
93
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