NFSv4: Reintroduce machine creds
We need to try to ensure that we always use the same credentials whenever
we re-establish the clientid on the server. If not, the server won't
recognise that we're the same client, and so may not allow us to recover
state.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
diff --git a/include/linux/nfs_fs_sb.h b/include/linux/nfs_fs_sb.h
index ac7e4fb..c9beacd 100644
--- a/include/linux/nfs_fs_sb.h
+++ b/include/linux/nfs_fs_sb.h
@@ -32,6 +32,8 @@
const struct nfs_rpc_ops *rpc_ops; /* NFS protocol vector */
int cl_proto; /* Network transport protocol */
+ struct rpc_cred *cl_machine_cred;
+
#ifdef CONFIG_NFS_V4
u64 cl_clientid; /* constant */
nfs4_verifier cl_confirm;
diff --git a/include/linux/sunrpc/auth.h b/include/linux/sunrpc/auth.h
index a19c3af..3f63218 100644
--- a/include/linux/sunrpc/auth.h
+++ b/include/linux/sunrpc/auth.h
@@ -26,6 +26,7 @@
uid_t uid;
gid_t gid;
struct group_info *group_info;
+ unsigned char machine_cred : 1;
};
/*
@@ -130,6 +131,7 @@
void __exit rpc_destroy_generic_auth(void);
struct rpc_cred * rpc_lookup_cred(void);
+struct rpc_cred * rpc_lookup_machine_cred(void);
int rpcauth_register(const struct rpc_authops *);
int rpcauth_unregister(const struct rpc_authops *);
struct rpc_auth * rpcauth_create(rpc_authflavor_t, struct rpc_clnt *);
diff --git a/include/linux/sunrpc/auth_gss.h b/include/linux/sunrpc/auth_gss.h
index 67658e1..fec6899 100644
--- a/include/linux/sunrpc/auth_gss.h
+++ b/include/linux/sunrpc/auth_gss.h
@@ -84,6 +84,7 @@
enum rpc_gss_svc gc_service;
struct gss_cl_ctx *gc_ctx;
struct gss_upcall_msg *gc_upcall;
+ unsigned char gc_machine_cred : 1;
};
#endif /* __KERNEL__ */