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authorLinus Torvalds <torvalds@linux-foundation.org>2014-06-10 22:50:57 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2014-06-10 22:50:57 +0400
commit5b174fd6472b1d6b6402b30210a212f3fd770d96 (patch)
treef9d844ec08c4f828291f00817c3d8a389bd5c793 /include/uapi
parent1d21b1bf53f81256002f93387ec80ca13e3c5a8f (diff)
parent48385408b45523d9a432c66292d47ef43efcbb94 (diff)
downloadlinux-5b174fd6472b1d6b6402b30210a212f3fd770d96.tar.xz
Merge branch 'for-3.16' of git://linux-nfs.org/~bfields/linux
Pull nfsd updates from Bruce Fields: "The largest piece is a long-overdue rewrite of the xdr code to remove some annoying limitations: for example, there was no way to return ACLs larger than 4K, and readdir results were returned only in 4k chunks, limiting performance on large directories. Also: - part of Neil Brown's work to make NFS work reliably over the loopback interface (so client and server can run on the same machine without deadlocks). The rest of it is coming through other trees. - cleanup and bugfixes for some of the server RDMA code, from Steve Wise. - Various cleanup of NFSv4 state code in preparation for an overhaul of the locking, from Jeff, Trond, and Benny. - smaller bugfixes and cleanup from Christoph Hellwig and Kinglong Mee. Thanks to everyone! This summer looks likely to be busier than usual for knfsd. Hopefully we won't break it too badly; testing definitely welcomed" * 'for-3.16' of git://linux-nfs.org/~bfields/linux: (100 commits) nfsd4: fix FREE_STATEID lockowner leak svcrdma: Fence LOCAL_INV work requests svcrdma: refactor marshalling logic nfsd: don't halt scanning the DRC LRU list when there's an RC_INPROG entry nfs4: remove unused CHANGE_SECURITY_LABEL nfsd4: kill READ64 nfsd4: kill READ32 nfsd4: simplify server xdr->next_page use nfsd4: hash deleg stateid only on successful nfs4_set_delegation nfsd4: rename recall_lock to state_lock nfsd: remove unneeded zeroing of fields in nfsd4_proc_compound nfsd: fix setting of NFS4_OO_CONFIRMED in nfsd4_open nfsd4: use recall_lock for delegation hashing nfsd: fix laundromat next-run-time calculation nfsd: make nfsd4_encode_fattr static SUNRPC/NFSD: Remove using of dprintk with KERN_WARNING nfsd: remove unused function nfsd_read_file nfsd: getattr for FATTR4_WORD0_FILES_AVAIL needs the statfs buffer NFSD: Error out when getting more than one fsloc/secinfo/uuid NFSD: Using type of uint32_t for ex_nflavors instead of int ...
Diffstat (limited to 'include/uapi')
-rw-r--r--include/uapi/linux/nfsd/nfsfh.h32
1 files changed, 7 insertions, 25 deletions
diff --git a/include/uapi/linux/nfsd/nfsfh.h b/include/uapi/linux/nfsd/nfsfh.h
index 616e3b396476..20391235d088 100644
--- a/include/uapi/linux/nfsd/nfsfh.h
+++ b/include/uapi/linux/nfsd/nfsfh.h
@@ -1,13 +1,7 @@
/*
- * include/linux/nfsd/nfsfh.h
- *
* This file describes the layout of the file handles as passed
* over the wire.
*
- * Earlier versions of knfsd used to sign file handles using keyed MD5
- * or SHA. I've removed this code, because it doesn't give you more
- * security than blocking external access to port 2049 on your firewall.
- *
* Copyright (C) 1995, 1996, 1997 Olaf Kirch <okir@monad.swb.de>
*/
@@ -37,7 +31,7 @@ struct nfs_fhbase_old {
};
/*
- * This is the new flexible, extensible style NFSv2/v3 file handle.
+ * This is the new flexible, extensible style NFSv2/v3/v4 file handle.
* by Neil Brown <neilb@cse.unsw.edu.au> - March 2000
*
* The file handle starts with a sequence of four-byte words.
@@ -47,14 +41,7 @@ struct nfs_fhbase_old {
*
* All four-byte values are in host-byte-order.
*
- * The auth_type field specifies how the filehandle can be authenticated
- * This might allow a file to be confirmed to be in a writable part of a
- * filetree without checking the path from it up to the root.
- * Current values:
- * 0 - No authentication. fb_auth is 0 bytes long
- * Possible future values:
- * 1 - 4 bytes taken from MD5 hash of the remainer of the file handle
- * prefixed by a secret and with the important export flags.
+ * The auth_type field is deprecated and must be set to 0.
*
* The fsid_type identifies how the filesystem (or export point) is
* encoded.
@@ -71,14 +58,9 @@ struct nfs_fhbase_old {
* 7 - 8 byte inode number and 16 byte uuid
*
* The fileid_type identified how the file within the filesystem is encoded.
- * This is (will be) passed to, and set by, the underlying filesystem if it supports
- * filehandle operations. The filesystem must not use the value '0' or '0xff' and may
- * only use the values 1 and 2 as defined below:
- * Current values:
- * 0 - The root, or export point, of the filesystem. fb_fileid is 0 bytes.
- * 1 - 32bit inode number, 32 bit generation number.
- * 2 - 32bit inode number, 32 bit generation number, 32 bit parent directory inode number.
- *
+ * The values for this field are filesystem specific, exccept that
+ * filesystems must not use the values '0' or '0xff'. 'See enum fid_type'
+ * in include/linux/exportfs.h for currently registered values.
*/
struct nfs_fhbase_new {
__u8 fb_version; /* == 1, even => nfs_fhbase_old */
@@ -114,9 +96,9 @@ struct knfsd_fh {
#define fh_fsid_type fh_base.fh_new.fb_fsid_type
#define fh_auth_type fh_base.fh_new.fb_auth_type
#define fh_fileid_type fh_base.fh_new.fb_fileid_type
-#define fh_auth fh_base.fh_new.fb_auth
#define fh_fsid fh_base.fh_new.fb_auth
-
+/* Do not use, provided for userspace compatiblity. */
+#define fh_auth fh_base.fh_new.fb_auth
#endif /* _UAPI_LINUX_NFSD_FH_H */