tree edd6fee576195a23fd04dc1296045742b7cb6c1b
parent 745f6c0ef7f2fcd025e395538f1e2e3c9893de41
author Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> 1369071269 +0530
committer Michael Roth <mdroth@linux.vnet.ibm.com> 1369085023 -0500

hw/9pfs: use O_NOFOLLOW for mapped readlink operation

With mapped security models like mapped-xattr and mapped-file, we save the
symlink target as file contents. Now if we ever expose a normal directory
with mapped security model and find real symlinks in export path, never
follow them and return proper error.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>