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From: Mi Jinlong <mijinlong@cn.fujitsu.com>
To: "J. Bruce Fields" <bfields@fieldses.org>
Cc: NFS <linux-nfs@vger.kernel.org>
Subject: [PATCH] nfsd41: compare request's opcnt with session's maxops at nfsd4_sequence
Date: Wed, 27 Apr 2011 09:09:58 +0800	[thread overview]
Message-ID: <4DB76CE6.9080404@cn.fujitsu.com> (raw)

Make sure nfs server can distinguish request contains more ops
than channel allowed.

Signed-off-by: Mi Jinlong <mijinlong@cn.fujitsu.com>
---
 fs/nfsd/nfs4state.c |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index fbde6f7..4f9fc68 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -1749,6 +1749,11 @@ nfsd4_sequence(struct svc_rqst *rqstp,
 	if (!session)
 		goto out;
 
+	status = nfserr_too_many_ops;
+	if (((struct nfsd4_compoundargs *)rqstp->rq_argp)->opcnt >
+				 session->se_fchannel.maxops)
+		goto out;
+
 	status = nfserr_badslot;
 	if (seq->slotid >= session->se_fchannel.maxreqs)
 		goto out;
-- 
1.7.4.1



             reply	other threads:[~2011-04-27  1:08 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-04-27  1:09 Mi Jinlong [this message]
2011-04-27  2:41 ` [PATCH] nfsd41: compare request's opcnt with session's maxops at nfsd4_sequence J. Bruce Fields
2011-04-27  5:48   ` Mi Jinlong
2011-05-03  3:48     ` J. Bruce Fields
2011-05-09  9:26       ` Mi Jinlong

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