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Sender: Chuck Lever <chucklever@gmail.com>
Subject: [PATCH v2 048/118] NFSD: Replace READ* macros in
 nfsd4_decode_verify()
From:   Chuck Lever <chuck.lever@oracle.com>
To:     linux-nfs@vger.kernel.org
Date:   Fri, 20 Nov 2020 15:38:01 -0500
Message-ID: <160590468171.1340.13282973653265827766.stgit@klimt.1015granger.net>
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Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
---
 fs/nfsd/nfs4xdr.c |   22 ++++++++++++++--------
 1 file changed, 14 insertions(+), 8 deletions(-)

diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index 5266a5a1bdc6..69262f9ea5a5 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -1316,20 +1316,26 @@ nfsd4_decode_setclientid_confirm(struct nfsd4_compoundargs *argp, struct nfsd4_s
 static __be32
 nfsd4_decode_verify(struct nfsd4_compoundargs *argp, struct nfsd4_verify *verify)
 {
-	DECODE_HEAD;
+	__be32 *p;
 
-	if ((status = nfsd4_decode_bitmap(argp, verify->ve_bmval)))
-		goto out;
+	if (xdr_stream_decode_uint32_array(argp->xdr, verify->ve_bmval,
+					   ARRAY_SIZE(verify->ve_bmval)) < 0)
+		return nfserr_bad_xdr;
 
 	/* For convenience's sake, we compare raw xdr'd attributes in
 	 * nfsd4_proc_verify */
 
-	READ_BUF(4);
-	verify->ve_attrlen = be32_to_cpup(p++);
-	READ_BUF(verify->ve_attrlen);
-	SAVEMEM(verify->ve_attrval, verify->ve_attrlen);
+	if (xdr_stream_decode_u32(argp->xdr, &verify->ve_attrlen) < 0)
+		return nfserr_bad_xdr;
+	p = xdr_inline_decode(argp->xdr, verify->ve_attrlen);
+	if (!p)
+		return nfserr_bad_xdr;
+	verify->ve_attrval = svcxdr_tmpalloc(argp, verify->ve_attrlen);
+	if (!verify->ve_attrval)
+		return nfserr_jukebox;
+	memcpy(verify->ve_attrval, p, verify->ve_attrlen);
 
-	DECODE_TAIL;
+	return nfs_ok;
 }
 
 static __be32