This source file includes following definitions.
- get_rpccred
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10 #ifndef _LINUX_SUNRPC_AUTH_H
11 #define _LINUX_SUNRPC_AUTH_H
12
13 #ifdef __KERNEL__
14
15 #include <linux/sunrpc/sched.h>
16 #include <linux/sunrpc/msg_prot.h>
17 #include <linux/sunrpc/xdr.h>
18
19 #include <linux/atomic.h>
20 #include <linux/rcupdate.h>
21 #include <linux/uidgid.h>
22 #include <linux/utsname.h>
23
24
25
26
27 #define NUL_CALLSLACK (4)
28 #define NUL_REPLYSLACK (2)
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33
34 #define UNX_MAXNODENAME __NEW_UTS_LEN
35 #define UNX_CALLSLACK (21 + XDR_QUADLEN(UNX_MAXNODENAME))
36 #define UNX_NGROUPS 16
37
38 struct rpcsec_gss_info;
39
40 struct auth_cred {
41 const struct cred *cred;
42 const char *principal;
43 };
44
45
46
47
48 struct rpc_auth;
49 struct rpc_credops;
50 struct rpc_cred {
51 struct hlist_node cr_hash;
52 struct list_head cr_lru;
53 struct rcu_head cr_rcu;
54 struct rpc_auth * cr_auth;
55 const struct rpc_credops *cr_ops;
56 unsigned long cr_expire;
57 unsigned long cr_flags;
58 refcount_t cr_count;
59 const struct cred *cr_cred;
60
61
62 };
63 #define RPCAUTH_CRED_NEW 0
64 #define RPCAUTH_CRED_UPTODATE 1
65 #define RPCAUTH_CRED_HASHED 2
66 #define RPCAUTH_CRED_NEGATIVE 3
67
68 const struct cred *rpc_machine_cred(void);
69
70
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72
73 struct rpc_cred_cache;
74 struct rpc_authops;
75 struct rpc_auth {
76 unsigned int au_cslack;
77 unsigned int au_rslack;
78 unsigned int au_verfsize;
79 unsigned int au_ralign;
80
81 unsigned int au_flags;
82 const struct rpc_authops *au_ops;
83 rpc_authflavor_t au_flavor;
84
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86
87 refcount_t au_count;
88
89 struct rpc_cred_cache * au_credcache;
90
91 };
92
93
94 #define RPCAUTH_AUTH_DATATOUCH 0x00000002
95
96 struct rpc_auth_create_args {
97 rpc_authflavor_t pseudoflavor;
98 const char *target_name;
99 };
100
101
102 #define RPCAUTH_LOOKUP_NEW 0x01
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106
107 struct rpc_authops {
108 struct module *owner;
109 rpc_authflavor_t au_flavor;
110 char * au_name;
111 struct rpc_auth * (*create)(const struct rpc_auth_create_args *,
112 struct rpc_clnt *);
113 void (*destroy)(struct rpc_auth *);
114
115 int (*hash_cred)(struct auth_cred *, unsigned int);
116 struct rpc_cred * (*lookup_cred)(struct rpc_auth *, struct auth_cred *, int);
117 struct rpc_cred * (*crcreate)(struct rpc_auth*, struct auth_cred *, int, gfp_t);
118 int (*list_pseudoflavors)(rpc_authflavor_t *, int);
119 rpc_authflavor_t (*info2flavor)(struct rpcsec_gss_info *);
120 int (*flavor2info)(rpc_authflavor_t,
121 struct rpcsec_gss_info *);
122 int (*key_timeout)(struct rpc_auth *,
123 struct rpc_cred *);
124 };
125
126 struct rpc_credops {
127 const char * cr_name;
128 int (*cr_init)(struct rpc_auth *, struct rpc_cred *);
129 void (*crdestroy)(struct rpc_cred *);
130
131 int (*crmatch)(struct auth_cred *, struct rpc_cred *, int);
132 int (*crmarshal)(struct rpc_task *task,
133 struct xdr_stream *xdr);
134 int (*crrefresh)(struct rpc_task *);
135 int (*crvalidate)(struct rpc_task *task,
136 struct xdr_stream *xdr);
137 int (*crwrap_req)(struct rpc_task *task,
138 struct xdr_stream *xdr);
139 int (*crunwrap_resp)(struct rpc_task *task,
140 struct xdr_stream *xdr);
141 int (*crkey_timeout)(struct rpc_cred *);
142 char * (*crstringify_acceptor)(struct rpc_cred *);
143 bool (*crneed_reencode)(struct rpc_task *);
144 };
145
146 extern const struct rpc_authops authunix_ops;
147 extern const struct rpc_authops authnull_ops;
148
149 int __init rpc_init_authunix(void);
150 int __init rpcauth_init_module(void);
151 void rpcauth_remove_module(void);
152 void rpc_destroy_authunix(void);
153
154 int rpcauth_register(const struct rpc_authops *);
155 int rpcauth_unregister(const struct rpc_authops *);
156 struct rpc_auth * rpcauth_create(const struct rpc_auth_create_args *,
157 struct rpc_clnt *);
158 void rpcauth_release(struct rpc_auth *);
159 rpc_authflavor_t rpcauth_get_pseudoflavor(rpc_authflavor_t,
160 struct rpcsec_gss_info *);
161 int rpcauth_get_gssinfo(rpc_authflavor_t,
162 struct rpcsec_gss_info *);
163 int rpcauth_list_flavors(rpc_authflavor_t *, int);
164 struct rpc_cred * rpcauth_lookup_credcache(struct rpc_auth *, struct auth_cred *, int, gfp_t);
165 void rpcauth_init_cred(struct rpc_cred *, const struct auth_cred *, struct rpc_auth *, const struct rpc_credops *);
166 struct rpc_cred * rpcauth_lookupcred(struct rpc_auth *, int);
167 void put_rpccred(struct rpc_cred *);
168 int rpcauth_marshcred(struct rpc_task *task,
169 struct xdr_stream *xdr);
170 int rpcauth_checkverf(struct rpc_task *task,
171 struct xdr_stream *xdr);
172 int rpcauth_wrap_req_encode(struct rpc_task *task,
173 struct xdr_stream *xdr);
174 int rpcauth_wrap_req(struct rpc_task *task,
175 struct xdr_stream *xdr);
176 int rpcauth_unwrap_resp_decode(struct rpc_task *task,
177 struct xdr_stream *xdr);
178 int rpcauth_unwrap_resp(struct rpc_task *task,
179 struct xdr_stream *xdr);
180 bool rpcauth_xmit_need_reencode(struct rpc_task *task);
181 int rpcauth_refreshcred(struct rpc_task *);
182 void rpcauth_invalcred(struct rpc_task *);
183 int rpcauth_uptodatecred(struct rpc_task *);
184 int rpcauth_init_credcache(struct rpc_auth *);
185 void rpcauth_destroy_credcache(struct rpc_auth *);
186 void rpcauth_clear_credcache(struct rpc_cred_cache *);
187 char * rpcauth_stringify_acceptor(struct rpc_cred *);
188
189 static inline
190 struct rpc_cred *get_rpccred(struct rpc_cred *cred)
191 {
192 if (cred != NULL && refcount_inc_not_zero(&cred->cr_count))
193 return cred;
194 return NULL;
195 }
196
197 #endif
198 #endif