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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 | /* * linux/include/linux/sunrpc/auth.h * * Declarations for the RPC client authentication machinery. * * Copyright (C) 1996, Olaf Kirch <okir@monad.swb.de> */ #ifndef _LINUX_SUNRPC_AUTH_H #define _LINUX_SUNRPC_AUTH_H #ifdef __KERNEL__ #include <linux/config.h> #include <linux/sunrpc/sched.h> #include <asm/atomic.h> /* size of the nodename buffer */ #define UNX_MAXNODENAME 32 /* * Client user credentials */ struct rpc_cred { struct rpc_cred * cr_next; /* linked list */ struct rpc_auth * cr_auth; struct rpc_credops * cr_ops; unsigned long cr_expire; /* when to gc */ atomic_t cr_count; /* ref count */ unsigned short cr_flags; /* various flags */ #ifdef RPC_DEBUG unsigned long cr_magic; /* 0x0f4aa4f0 */ #endif uid_t cr_uid; /* per-flavor data */ }; #define RPCAUTH_CRED_LOCKED 0x0001 #define RPCAUTH_CRED_UPTODATE 0x0002 #define RPCAUTH_CRED_DEAD 0x0004 #define RPCAUTH_CRED_MAGIC 0x0f4aa4f0 /* * Client authentication handle */ #define RPC_CREDCACHE_NR 8 #define RPC_CREDCACHE_MASK (RPC_CREDCACHE_NR - 1) struct rpc_auth { struct rpc_cred * au_credcache[RPC_CREDCACHE_NR]; unsigned long au_expire; /* cache expiry interval */ unsigned long au_nextgc; /* next garbage collection */ unsigned int au_cslack; /* call cred size estimate */ unsigned int au_rslack; /* reply verf size guess */ unsigned int au_flags; /* various flags */ struct rpc_authops * au_ops; /* operations */ /* per-flavor data */ }; #define RPC_AUTH_PROC_CREDS 0x0010 /* process creds (including * uid/gid, fs[ug]id, gids) */ /* * Client authentication ops */ struct rpc_authops { rpc_authflavor_t au_flavor; /* flavor (RPC_AUTH_*) */ #ifdef RPC_DEBUG char * au_name; #endif struct rpc_auth * (*create)(struct rpc_clnt *); void (*destroy)(struct rpc_auth *); struct rpc_cred * (*crcreate)(int); }; struct rpc_credops { void (*crdestroy)(struct rpc_cred *); int (*crmatch)(struct rpc_cred *, int); u32 * (*crmarshal)(struct rpc_task *, u32 *, int); int (*crrefresh)(struct rpc_task *); u32 * (*crvalidate)(struct rpc_task *, u32 *); }; extern struct rpc_authops authunix_ops; extern struct rpc_authops authnull_ops; #ifdef CONFIG_SUNRPC_SECURE extern struct rpc_authops authdes_ops; #endif int rpcauth_register(struct rpc_authops *); int rpcauth_unregister(struct rpc_authops *); struct rpc_auth * rpcauth_create(rpc_authflavor_t, struct rpc_clnt *); void rpcauth_destroy(struct rpc_auth *); struct rpc_cred * rpcauth_lookupcred(struct rpc_auth *, int); struct rpc_cred * rpcauth_bindcred(struct rpc_task *); void rpcauth_holdcred(struct rpc_task *); void put_rpccred(struct rpc_cred *); void rpcauth_unbindcred(struct rpc_task *); int rpcauth_matchcred(struct rpc_auth *, struct rpc_cred *, int); u32 * rpcauth_marshcred(struct rpc_task *, u32 *); u32 * rpcauth_checkverf(struct rpc_task *, u32 *); int rpcauth_refreshcred(struct rpc_task *); void rpcauth_invalcred(struct rpc_task *); int rpcauth_uptodatecred(struct rpc_task *); void rpcauth_init_credcache(struct rpc_auth *); void rpcauth_free_credcache(struct rpc_auth *); void rpcauth_insert_credcache(struct rpc_auth *, struct rpc_cred *); static inline struct rpc_cred * get_rpccred(struct rpc_cred *cred) { atomic_inc(&cred->cr_count); return cred; } #endif /* __KERNEL__ */ #endif /* _LINUX_SUNRPC_AUTH_H */ |