From 2031cd1af143f47dacacbb35efbef22f2fd079e6 Mon Sep 17 00:00:00 2001 From: Weston Andros Adamson Date: Tue, 13 Aug 2013 16:37:32 -0400 Subject: nfs4.1: Minimal SP4_MACH_CRED implementation This is a minimal client side implementation of SP4_MACH_CRED. It will attempt to negotiate SP4_MACH_CRED iff the EXCHANGE_ID is using krb5i or krb5p auth. SP4_MACH_CRED will be used if the server supports the minimal operations: BIND_CONN_TO_SESSION EXCHANGE_ID CREATE_SESSION DESTROY_SESSION DESTROY_CLIENTID This patch only includes the EXCHANGE_ID negotiation code because the client will already use the machine cred for these operations. If the server doesn't support SP4_MACH_CRED or doesn't support the minimal operations, the exchange id will be resent with SP4_NONE. Signed-off-by: Weston Andros Adamson Signed-off-by: Trond Myklebust --- include/linux/nfs_fs_sb.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include/linux/nfs_fs_sb.h') diff --git a/include/linux/nfs_fs_sb.h b/include/linux/nfs_fs_sb.h index fc83d3d384d0..9f7b9192cf5e 100644 --- a/include/linux/nfs_fs_sb.h +++ b/include/linux/nfs_fs_sb.h @@ -90,6 +90,10 @@ struct nfs_client { struct nfs41_server_owner *cl_serverowner; struct nfs41_server_scope *cl_serverscope; struct nfs41_impl_id *cl_implid; + /* nfs 4.1+ state protection modes: */ + unsigned long cl_sp4_flags; +#define NFS_SP4_MACH_CRED_MINIMAL 1 /* Minimal sp4_mach_cred - state ops + * must use machine cred */ #endif /* CONFIG_NFS_V4 */ #ifdef CONFIG_NFS_FSCACHE -- cgit v1.2.3