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nfs_lookup: handle "." by ourselves as RFC1813 3.2 says.

This commit is contained in:
yamt 2004-05-10 12:43:51 +00:00
parent 540c75a594
commit 75f99c3465
1 changed files with 18 additions and 2 deletions
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20
sys/nfs/nfs_vnops.c
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@ -1,4 +1,4 @@
/* $NetBSD: nfs_vnops.c,v 1.197 2004/05/10 10:40:42 yamt Exp $ */ /* $NetBSD: nfs_vnops.c,v 1.198 2004/05/10 12:43:51 yamt Exp $ */
/* /*
* Copyright (c) 1989, 1993 * Copyright (c) 1989, 1993
@ -39,7 +39,7 @@
*/ */
#include <sys/cdefs.h> #include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: nfs_vnops.c,v 1.197 2004/05/10 10:40:42 yamt Exp $"); __KERNEL_RCSID(0, "$NetBSD: nfs_vnops.c,v 1.198 2004/05/10 12:43:51 yamt Exp $");
#include "opt_nfs.h" #include "opt_nfs.h"
#include "opt_uvmhist.h" #include "opt_uvmhist.h"
@ -843,6 +843,22 @@ nfs_lookup(v)
if (dvp->v_type != VDIR) if (dvp->v_type != VDIR)
return (ENOTDIR); return (ENOTDIR);
/*
* RFC1813(nfsv3) 3.2 says clients should handle "." by themselves.
*/
if (cnp->cn_namelen == 1 && cnp->cn_nameptr[0] == '.') {
error = VOP_ACCESS(dvp, VEXEC, cnp->cn_cred, cnp->cn_proc);
if (error)
return error;
if (cnp->cn_nameiop == RENAME && (flags & ISLASTCN))
return EISDIR;
VREF(dvp);
*vpp = dvp;
if (cnp->cn_nameiop != LOOKUP && (flags & ISLASTCN))
cnp->cn_flags |= SAVENAME;
return 0;
}
lockparent = flags & LOCKPARENT; lockparent = flags & LOCKPARENT;
wantparent = flags & (LOCKPARENT|WANTPARENT); wantparent = flags & (LOCKPARENT|WANTPARENT);
np = VTONFS(dvp); np = VTONFS(dvp);