Author: rmacklem
Date: Sun Dec 4 16:33:04 2011
New Revision: 228260
URL: http://svn.freebsd.org/changeset/base/228260
Log:
This patch adds a sysctl to the NFSv4 server which optionally disables the
check for a UTF-8 compliant file name. Enabling this sysctl results in
an NFSv4 server that is non-RFC3530 compliant, therefore it is not enabled
by default. However, enabling this sysctl results in NFSv3 compatible
behaviour and fixes the problem reported by "dan at sunsaturn.com"
to freebsd-current@ on Nov. 14, 2011 under the subject "NFSV4 readlink_stat".
Tested by: dan at sunsaturn.com
Reviewed by: zack
MFC after: 2 weeks
Modified:
head/sys/fs/nfsserver/nfs_nfsdsubs.c
Modified: head/sys/fs/nfsserver/nfs_nfsdsubs.c
==============================================================================
--- head/sys/fs/nfsserver/nfs_nfsdsubs.c Sun Dec 4 14:44:31 2011
(r228259)
+++ head/sys/fs/nfsserver/nfs_nfsdsubs.c Sun Dec 4 16:33:04 2011
(r228260)
@@ -56,6 +56,13 @@ static nfstype newnfsv2_type[9] = { NFNO
extern nfstype nfsv34_type[9];
#endif /* !APPLEKEXT */
+SYSCTL_DECL(_vfs_nfsd);
+
+static int disable_checkutf8 = 0;
+SYSCTL_INT(_vfs_nfsd, OID_AUTO, disable_checkutf8, CTLFLAG_RW,
+ &disable_checkutf8, 0,
+ "Disable the NFSv4 check for a UTF8 compliant name");
+
static char nfsrv_hexdigit(char, int *);
/*
@@ -1963,7 +1970,8 @@ nfsrv_parsename(struct nfsrv_descript *n
error = 0;
goto nfsmout;
}
- if (nfsrv_checkutf8((u_int8_t *)bufp, outlen)) {
+ if (disable_checkutf8 == 0 &&
+ nfsrv_checkutf8((u_int8_t *)bufp, outlen)) {
nd->nd_repstat = NFSERR_INVAL;
error = 0;
goto nfsmout;
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