Author: trasz
Date: Sat Dec 26 11:36:10 2009
New Revision: 201019
URL: http://svn.freebsd.org/changeset/base/201019

Log:
  Now that all the callers seem to be fixed, add KASSERTs to make sure VAPPEND
  is not being used improperly.

Modified:
  head/sys/kern/subr_acl_nfs4.c
  head/sys/kern/subr_acl_posix1e.c
  head/sys/kern/vfs_subr.c

Modified: head/sys/kern/subr_acl_nfs4.c
==============================================================================
--- head/sys/kern/subr_acl_nfs4.c       Sat Dec 26 11:03:10 2009        
(r201018)
+++ head/sys/kern/subr_acl_nfs4.c       Sat Dec 26 11:36:10 2009        
(r201019)
@@ -163,6 +163,14 @@ vaccess_acl_nfs4(enum vtype type, uid_t 
        int denied, explicitly_denied, access_mask, is_directory,
            must_be_owner = 0;
 
+       KASSERT((accmode & ~(VEXEC | VWRITE | VREAD | VADMIN | VAPPEND |
+           VEXPLICIT_DENY | VREAD_NAMED_ATTRS | VWRITE_NAMED_ATTRS |
+           VDELETE_CHILD | VREAD_ATTRIBUTES | VWRITE_ATTRIBUTES | VDELETE |
+           VREAD_ACL | VWRITE_ACL | VWRITE_OWNER | VSYNCHRONIZE)) == 0,
+           ("invalid bit in accmode"));
+       KASSERT((accmode & VAPPEND) == 0 || (accmode & VWRITE),
+               ("VAPPEND without VWRITE"));
+
        if (privused != NULL)
                *privused = 0;
 

Modified: head/sys/kern/subr_acl_posix1e.c
==============================================================================
--- head/sys/kern/subr_acl_posix1e.c    Sat Dec 26 11:03:10 2009        
(r201018)
+++ head/sys/kern/subr_acl_posix1e.c    Sat Dec 26 11:36:10 2009        
(r201019)
@@ -63,6 +63,8 @@ vaccess_acl_posix1e(enum vtype type, uid
 
        KASSERT((accmode & ~(VEXEC | VWRITE | VREAD | VADMIN | VAPPEND)) == 0,
            ("invalid bit in accmode"));
+       KASSERT((accmode & VAPPEND) == 0 || (accmode & VWRITE),
+               ("VAPPEND without VWRITE"));
 
        /*
         * Look for a normal, non-privileged way to access the file/directory

Modified: head/sys/kern/vfs_subr.c
==============================================================================
--- head/sys/kern/vfs_subr.c    Sat Dec 26 11:03:10 2009        (r201018)
+++ head/sys/kern/vfs_subr.c    Sat Dec 26 11:36:10 2009        (r201019)
@@ -3534,6 +3534,8 @@ vaccess(enum vtype type, mode_t file_mod
 
        KASSERT((accmode & ~(VEXEC | VWRITE | VREAD | VADMIN | VAPPEND)) == 0,
            ("invalid bit in accmode"));
+       KASSERT((accmode & VAPPEND) == 0 || (accmode & VWRITE),
+               ("VAPPEND without VWRITE"));
 
        /*
         * Look for a normal, non-privileged way to access the file/directory
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