From 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 Mon Sep 17 00:00:00 2001 From: Yunhong Jiang Date: Tue, 4 Aug 2015 12:17:53 -0700 Subject: Add the rt linux 4.1.3-rt3 as base Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang --- kernel/net/sunrpc/auth_null.c | 144 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 144 insertions(+) create mode 100644 kernel/net/sunrpc/auth_null.c (limited to 'kernel/net/sunrpc/auth_null.c') diff --git a/kernel/net/sunrpc/auth_null.c b/kernel/net/sunrpc/auth_null.c new file mode 100644 index 000000000..c2a2b584a --- /dev/null +++ b/kernel/net/sunrpc/auth_null.c @@ -0,0 +1,144 @@ +/* + * linux/net/sunrpc/auth_null.c + * + * AUTH_NULL authentication. Really :-) + * + * Copyright (C) 1996, Olaf Kirch + */ + +#include +#include +#include + +#if IS_ENABLED(CONFIG_SUNRPC_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_auth_create_args *args, struct rpc_clnt *clnt) +{ + 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) +{ + if (flags & RPCAUTH_LOOKUP_RCU) + return &null_cred; + 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 __be32 * +nul_marshal(struct rpc_task *task, __be32 *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) +{ + set_bit(RPCAUTH_CRED_UPTODATE, &task->tk_rqstp->rq_cred->cr_flags); + return 0; +} + +static __be32 * +nul_validate(struct rpc_task *task, __be32 *p) +{ + rpc_authflavor_t flavor; + u32 size; + + flavor = ntohl(*p++); + if (flavor != RPC_AUTH_NULL) { + printk("RPC: bad verf flavor: %u\n", flavor); + return ERR_PTR(-EIO); + } + + size = ntohl(*p++); + if (size != 0) { + printk("RPC: bad verf size: %u\n", size); + return ERR_PTR(-EIO); + } + + return p; +} + +const struct rpc_authops authnull_ops = { + .owner = THIS_MODULE, + .au_flavor = RPC_AUTH_NULL, + .au_name = "NULL", + .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, + .au_flavor = RPC_AUTH_NULL, + .au_count = ATOMIC_INIT(0), +}; + +static +const struct rpc_credops null_credops = { + .cr_name = "AUTH_NULL", + .crdestroy = nul_destroy_cred, + .crbind = rpcauth_generic_bind_cred, + .crmatch = nul_match, + .crmarshal = nul_marshal, + .crrefresh = nul_refresh, + .crvalidate = nul_validate, +}; + +static +struct rpc_cred null_cred = { + .cr_lru = LIST_HEAD_INIT(null_cred.cr_lru), + .cr_auth = &null_auth, + .cr_ops = &null_credops, + .cr_count = ATOMIC_INIT(1), + .cr_flags = 1UL << RPCAUTH_CRED_UPTODATE, +#if IS_ENABLED(CONFIG_SUNRPC_DEBUG) + .cr_magic = RPCAUTH_CRED_MAGIC, +#endif +}; -- cgit 1.2.3-korg