diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /net/sunrpc/auth_null.c |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'net/sunrpc/auth_null.c')
-rw-r--r-- | net/sunrpc/auth_null.c | 143 |
1 files changed, 143 insertions, 0 deletions
diff --git a/net/sunrpc/auth_null.c b/net/sunrpc/auth_null.c new file mode 100644 index 000000000000..9b72d3abf823 --- /dev/null +++ b/net/sunrpc/auth_null.c | |||
@@ -0,0 +1,143 @@ | |||
1 | /* | ||
2 | * linux/net/sunrpc/auth_null.c | ||
3 | * | ||
4 | * AUTH_NULL authentication. Really :-) | ||
5 | * | ||
6 | * Copyright (C) 1996, Olaf Kirch <okir@monad.swb.de> | ||
7 | */ | ||
8 | |||
9 | #include <linux/types.h> | ||
10 | #include <linux/socket.h> | ||
11 | #include <linux/module.h> | ||
12 | #include <linux/in.h> | ||
13 | #include <linux/utsname.h> | ||
14 | #include <linux/sunrpc/clnt.h> | ||
15 | #include <linux/sched.h> | ||
16 | |||
17 | #ifdef RPC_DEBUG | ||
18 | # define RPCDBG_FACILITY RPCDBG_AUTH | ||
19 | #endif | ||
20 | |||
21 | static struct rpc_auth null_auth; | ||
22 | static struct rpc_cred null_cred; | ||
23 | |||
24 | static struct rpc_auth * | ||
25 | nul_create(struct rpc_clnt *clnt, rpc_authflavor_t flavor) | ||
26 | { | ||
27 | atomic_inc(&null_auth.au_count); | ||
28 | return &null_auth; | ||
29 | } | ||
30 | |||
31 | static void | ||
32 | nul_destroy(struct rpc_auth *auth) | ||
33 | { | ||
34 | } | ||
35 | |||
36 | /* | ||
37 | * Lookup NULL creds for current process | ||
38 | */ | ||
39 | static struct rpc_cred * | ||
40 | nul_lookup_cred(struct rpc_auth *auth, struct auth_cred *acred, int flags) | ||
41 | { | ||
42 | return get_rpccred(&null_cred); | ||
43 | } | ||
44 | |||
45 | /* | ||
46 | * Destroy cred handle. | ||
47 | */ | ||
48 | static void | ||
49 | nul_destroy_cred(struct rpc_cred *cred) | ||
50 | { | ||
51 | } | ||
52 | |||
53 | /* | ||
54 | * Match cred handle against current process | ||
55 | */ | ||
56 | static int | ||
57 | nul_match(struct auth_cred *acred, struct rpc_cred *cred, int taskflags) | ||
58 | { | ||
59 | return 1; | ||
60 | } | ||
61 | |||
62 | /* | ||
63 | * Marshal credential. | ||
64 | */ | ||
65 | static u32 * | ||
66 | nul_marshal(struct rpc_task *task, u32 *p) | ||
67 | { | ||
68 | *p++ = htonl(RPC_AUTH_NULL); | ||
69 | *p++ = 0; | ||
70 | *p++ = htonl(RPC_AUTH_NULL); | ||
71 | *p++ = 0; | ||
72 | |||
73 | return p; | ||
74 | } | ||
75 | |||
76 | /* | ||
77 | * Refresh credential. This is a no-op for AUTH_NULL | ||
78 | */ | ||
79 | static int | ||
80 | nul_refresh(struct rpc_task *task) | ||
81 | { | ||
82 | task->tk_msg.rpc_cred->cr_flags |= RPCAUTH_CRED_UPTODATE; | ||
83 | return 0; | ||
84 | } | ||
85 | |||
86 | static u32 * | ||
87 | nul_validate(struct rpc_task *task, u32 *p) | ||
88 | { | ||
89 | rpc_authflavor_t flavor; | ||
90 | u32 size; | ||
91 | |||
92 | flavor = ntohl(*p++); | ||
93 | if (flavor != RPC_AUTH_NULL) { | ||
94 | printk("RPC: bad verf flavor: %u\n", flavor); | ||
95 | return NULL; | ||
96 | } | ||
97 | |||
98 | size = ntohl(*p++); | ||
99 | if (size != 0) { | ||
100 | printk("RPC: bad verf size: %u\n", size); | ||
101 | return NULL; | ||
102 | } | ||
103 | |||
104 | return p; | ||
105 | } | ||
106 | |||
107 | struct rpc_authops authnull_ops = { | ||
108 | .owner = THIS_MODULE, | ||
109 | .au_flavor = RPC_AUTH_NULL, | ||
110 | #ifdef RPC_DEBUG | ||
111 | .au_name = "NULL", | ||
112 | #endif | ||
113 | .create = nul_create, | ||
114 | .destroy = nul_destroy, | ||
115 | .lookup_cred = nul_lookup_cred, | ||
116 | }; | ||
117 | |||
118 | static | ||
119 | struct rpc_auth null_auth = { | ||
120 | .au_cslack = 4, | ||
121 | .au_rslack = 2, | ||
122 | .au_ops = &authnull_ops, | ||
123 | }; | ||
124 | |||
125 | static | ||
126 | struct rpc_credops null_credops = { | ||
127 | .cr_name = "AUTH_NULL", | ||
128 | .crdestroy = nul_destroy_cred, | ||
129 | .crmatch = nul_match, | ||
130 | .crmarshal = nul_marshal, | ||
131 | .crrefresh = nul_refresh, | ||
132 | .crvalidate = nul_validate, | ||
133 | }; | ||
134 | |||
135 | static | ||
136 | struct rpc_cred null_cred = { | ||
137 | .cr_ops = &null_credops, | ||
138 | .cr_count = ATOMIC_INIT(1), | ||
139 | .cr_flags = RPCAUTH_CRED_UPTODATE, | ||
140 | #ifdef RPC_DEBUG | ||
141 | .cr_magic = RPCAUTH_CRED_MAGIC, | ||
142 | #endif | ||
143 | }; | ||