github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-25 23:52:08 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

NFS: fix open_owner_id_maxsz and related fields.

Browse Source 
A recent change increased the size of an NFSv4 open owner, but didn't
increase the corresponding max_sz defines.  This is not know to have
caused failure, but should be fixed.

This patch also fixes some relates _maxsz fields that are wrong.

Note that the XXX_owner_id_maxsz values now are only the size of the id
and do NOT include the len field that will always preceed the id in xdr
encoding.  I think this is clearer.

Reported-by: David Disseldorp <ddiss@suse.com>
Fixes: d98f722725 ("nfs: simplify and guarantee owner uniqueness.")
Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
This commit is contained in:
NeilBrown 2024-12-04 13:53:09 +11:00 committed by Trond Myklebust
parent e767b59e29
commit 43502f6e8d
1 changed files with 9 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
fs/nfs/nfs4xdr.c
View File

@ -82,9 +82,8 @@ static int decode_layoutget(struct xdr_stream *xdr, struct rpc_rqst *req,
* we currently use size 2 (u64) out of (NFS4_OPAQUE_LIMIT >> 2)
*/
#define pagepad_maxsz (1)
#define open_owner_id_maxsz (1 + 2 + 1 + 1 + 2)
#define lock_owner_id_maxsz (1 + 1 + 4)
#define decode_lockowner_maxsz (1 + XDR_QUADLEN(IDMAP_NAMESZ))
#define open_owner_id_maxsz (2 + 1 + 2 + 2)
#define lock_owner_id_maxsz (2 + 1 + 2)
#define compound_encode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2))
#define compound_decode_hdr_maxsz (3 + (NFS4_MAXTAGLEN >> 2))
#define op_encode_hdr_maxsz (1)
@ -185,7 +184,7 @@ static int decode_layoutget(struct xdr_stream *xdr, struct rpc_rqst *req,
#define encode_claim_null_maxsz (1 + nfs4_name_maxsz)
#define encode_open_maxsz (op_encode_hdr_maxsz + \
2 + encode_share_access_maxsz + 2 + \
open_owner_id_maxsz + \
1 + open_owner_id_maxsz + \
encode_opentype_maxsz + \
encode_claim_null_maxsz)
#define decode_space_limit_maxsz (3)
@ -255,13 +254,14 @@ static int decode_layoutget(struct xdr_stream *xdr, struct rpc_rqst *req,
#define encode_link_maxsz (op_encode_hdr_maxsz + \
nfs4_name_maxsz)
#define decode_link_maxsz (op_decode_hdr_maxsz + decode_change_info_maxsz)
#define encode_lockowner_maxsz (7)
#define encode_lockowner_maxsz (2 + 1 + lock_owner_id_maxsz)
#define encode_lock_maxsz (op_encode_hdr_maxsz + \
7 + \
1 + encode_stateid_maxsz + 1 + \
encode_lockowner_maxsz)
#define decode_lock_denied_maxsz \
(8 + decode_lockowner_maxsz)
(2 + 2 + 1 + 2 + 1 + lock_owner_id_maxsz)
#define decode_lock_maxsz (op_decode_hdr_maxsz + \
decode_lock_denied_maxsz)
#define encode_lockt_maxsz (op_encode_hdr_maxsz + 5 + \
@ -617,7 +617,7 @@ static int decode_layoutget(struct xdr_stream *xdr, struct rpc_rqst *req,
encode_lockowner_maxsz)
#define NFS4_dec_release_lockowner_sz \
(compound_decode_hdr_maxsz + \
decode_lockowner_maxsz)
decode_release_lockowner_maxsz)
#define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \
encode_sequence_maxsz + \
encode_putfh_maxsz + \
@ -1412,7 +1412,7 @@ static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_opena
__be32 *p;
/*
* opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4,
* owner 4 = 32
* owner 28
*/
encode_nfs4_seqid(xdr, arg->seqid);
encode_share_access(xdr, arg->share_access);
@ -5077,7 +5077,7 @@ static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
/*
* We create the owner, so we know a proper owner.id length is 4.
*/
static int decode_lock_denied (struct xdr_stream *xdr, struct file_lock *fl)
static int decode_lock_denied(struct xdr_stream *xdr, struct file_lock *fl)
{
uint64_t offset, length, clientid;
__be32 *p;