selinux: remove ptrace_sid

This changes checks related to ptrace to get rid of the ptrace_sid tracking.
It's good to disentangle the security model from the ptrace implementation
internals.  It's sufficient to check against the SID of the ptracer at the
time a tracee attempts a transition.

Signed-off-by: Roland McGrath <roland@redhat.com>
Acked-by: Stephen Smalley <sds@tycho.nsa.gov>
Signed-off-by: James Morris <jmorris@namei.org>

1 files changed, 0 insertions, 1 deletions

diff --git a/security/selinux/include/objsec.h b/security/selinux/include/objsec.h
index 020a8754b809..957b10d0f76f 100644
--- a/security/selinux/include/objsec.h
+++ b/security/selinux/include/objsec.h
@@ -34,7 +34,6 @@ struct task_security_struct {
         u32 create_sid;      /* fscreate SID */
         u32 keycreate_sid;   /* keycreate SID */
         u32 sockcreate_sid;  /* fscreate SID */
-        u32 ptrace_sid;      /* SID of ptrace parent */
 };
 
 struct inode_security_struct {