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author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-17 02:20:36 +0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-17 02:20:36 +0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /net/sunrpc/auth_null.c | |
download | linux-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.xz |
Linux-2.6.12-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 @@ +/* + * linux/net/sunrpc/auth_null.c + * + * AUTH_NULL authentication. Really :-) + * + * Copyright (C) 1996, Olaf Kirch <okir@monad.swb.de> + */ + +#include <linux/types.h> +#include <linux/socket.h> +#include <linux/module.h> +#include <linux/in.h> +#include <linux/utsname.h> +#include <linux/sunrpc/clnt.h> +#include <linux/sched.h> + +#ifdef RPC_DEBUG +# define RPCDBG_FACILITY RPCDBG_AUTH +#endif + +static struct rpc_auth null_auth; +static struct rpc_cred null_cred; + +static struct rpc_auth * +nul_create(struct rpc_clnt *clnt, rpc_authflavor_t flavor) +{ + atomic_inc(&null_auth.au_count); + return &null_auth; +} + +static void +nul_destroy(struct rpc_auth *auth) +{ +} + +/* + * Lookup NULL creds for current process + */ +static struct rpc_cred * +nul_lookup_cred(struct rpc_auth *auth, struct auth_cred *acred, int flags) +{ + return get_rpccred(&null_cred); +} + +/* + * Destroy cred handle. + */ +static void +nul_destroy_cred(struct rpc_cred *cred) +{ +} + +/* + * Match cred handle against current process + */ +static int +nul_match(struct auth_cred *acred, struct rpc_cred *cred, int taskflags) +{ + return 1; +} + +/* + * Marshal credential. + */ +static u32 * +nul_marshal(struct rpc_task *task, u32 *p) +{ + *p++ = htonl(RPC_AUTH_NULL); + *p++ = 0; + *p++ = htonl(RPC_AUTH_NULL); + *p++ = 0; + + return p; +} + +/* + * Refresh credential. This is a no-op for AUTH_NULL + */ +static int +nul_refresh(struct rpc_task *task) +{ + task->tk_msg.rpc_cred->cr_flags |= RPCAUTH_CRED_UPTODATE; + return 0; +} + +static u32 * +nul_validate(struct rpc_task *task, u32 *p) +{ + rpc_authflavor_t flavor; + u32 size; + + flavor = ntohl(*p++); + if (flavor != RPC_AUTH_NULL) { + printk("RPC: bad verf flavor: %u\n", flavor); + return NULL; + } + + size = ntohl(*p++); + if (size != 0) { + printk("RPC: bad verf size: %u\n", size); + return NULL; + } + + return p; +} + +struct rpc_authops authnull_ops = { + .owner = THIS_MODULE, + .au_flavor = RPC_AUTH_NULL, +#ifdef RPC_DEBUG + .au_name = "NULL", +#endif + .create = nul_create, + .destroy = nul_destroy, + .lookup_cred = nul_lookup_cred, +}; + +static +struct rpc_auth null_auth = { + .au_cslack = 4, + .au_rslack = 2, + .au_ops = &authnull_ops, +}; + +static +struct rpc_credops null_credops = { + .cr_name = "AUTH_NULL", + .crdestroy = nul_destroy_cred, + .crmatch = nul_match, + .crmarshal = nul_marshal, + .crrefresh = nul_refresh, + .crvalidate = nul_validate, +}; + +static +struct rpc_cred null_cred = { + .cr_ops = &null_credops, + .cr_count = ATOMIC_INIT(1), + .cr_flags = RPCAUTH_CRED_UPTODATE, +#ifdef RPC_DEBUG + .cr_magic = RPCAUTH_CRED_MAGIC, +#endif +}; |