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authorWeston Andros Adamson <dros@netapp.com>2013-10-18 15:15:19 -0400
committerTrond Myklebust <Trond.Myklebust@netapp.com>2013-10-28 15:38:02 -0400
commit4d4b69dd847a098cdca341c45326f6c6f61b8691 (patch)
treefdd1d7204d48f7af1f93f06844ee507e36dc917b /fs/nfs/internal.h
parent5837f6dfcb00f764976ddc178933e612702cbf54 (diff)
downloadblackbird-op-linux-4d4b69dd847a098cdca341c45326f6c6f61b8691.tar.gz
blackbird-op-linux-4d4b69dd847a098cdca341c45326f6c6f61b8691.zip
NFS: add support for multiple sec= mount options
This patch adds support for multiple security options which can be specified using a colon-delimited list of security flavors (the same syntax as nfsd's exports file). This is useful, for instance, when NFSv4.x mounts cross SECINFO boundaries. With this patch a user can use "sec=krb5i,krb5p" to mount a remote filesystem using krb5i, but can still cross into krb5p-only exports. New mounts will try all security options before failing. NFSv4.x SECINFO results will be compared against the sec= flavors to find the first flavor in both lists or if no match is found will return -EPERM. Signed-off-by: Weston Andros Adamson <dros@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs/internal.h')
-rw-r--r--fs/nfs/internal.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h
index c8cd044f0982..bca6a3e3c49c 100644
--- a/fs/nfs/internal.h
+++ b/fs/nfs/internal.h
@@ -326,6 +326,7 @@ extern struct file_system_type nfs_xdev_fs_type;
extern struct file_system_type nfs4_xdev_fs_type;
extern struct file_system_type nfs4_referral_fs_type;
#endif
+bool nfs_auth_info_match(const struct nfs_auth_info *, rpc_authflavor_t);
struct dentry *nfs_try_mount(int, const char *, struct nfs_mount_info *,
struct nfs_subversion *);
void nfs_initialise_sb(struct super_block *);
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