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 __rcu *gc_gss_ctx; 73 struct xdr_netobj gc_wire_ctx; 74 u32 gc_win; 75 unsigned long gc_expiry; 76 struct rcu_head gc_rcu; 77 }; 78 79 struct gss_upcall_msg; 80 struct gss_cred { 81 struct rpc_cred gc_base; 82 enum rpc_gss_svc gc_service; 83 struct gss_cl_ctx __rcu *gc_ctx; 84 struct gss_upcall_msg *gc_upcall; 85 const char *gc_principal; 86 unsigned long gc_upcall_timestamp; 87 }; 88 89 #endif /* __KERNEL__ */ 90 #endif /* _LINUX_SUNRPC_AUTH_GSS_H */ 91 92