From f1e82477747d259ffa18f9d418dd6eae1d440878 Mon Sep 17 00:00:00 2001
From: rob <rob@openbsd.org>
Date: Tue, 15 Feb 2022 23:16:00 +0000
Subject: [PATCH] Reintroduce ps state flag 'c' indicating chrooted process
 (via PS_BITS). Ok deraat@

---
 bin/ps/print.c          | 4 +++-
 bin/ps/ps.1             | 6 ++++--
 sys/kern/vfs_syscalls.c | 3 ++-
 sys/sys/proc.h          | 5 +++--
 4 files changed, 12 insertions(+), 6 deletions(-)

diff --git a/bin/ps/print.c b/bin/ps/print.c
index 7b54ae7d13d..4afa30f70fc 100644
--- a/bin/ps/print.c
+++ b/bin/ps/print.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: print.c,v 1.81 2022/02/14 18:09:08 rob Exp $	*/
+/*	$OpenBSD: print.c,v 1.82 2022/02/15 23:16:00 rob Exp $	*/
 /*	$NetBSD: print.c,v 1.27 1995/09/29 21:58:12 cgd Exp $	*/
 
 /*-
@@ -289,6 +289,8 @@ printstate(const struct kinfo_proc *kp, VARENT *ve)
 		else
 			*cp++ = 'u';
 	}
+	if (kp->p_psflags & PS_CHROOT)
+		*cp++ = 'c';
 	*cp = '\0';
 
 	if (state == 'R' && kp->p_cpuid != KI_NOCPU) {
diff --git a/bin/ps/ps.1 b/bin/ps/ps.1
index 4ada43512a4..1e64816e754 100644
--- a/bin/ps/ps.1
+++ b/bin/ps/ps.1
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: ps.1,v 1.123 2022/02/14 18:09:08 rob Exp $
+.\"	$OpenBSD: ps.1,v 1.124 2022/02/15 23:16:00 rob Exp $
 .\"	$NetBSD: ps.1,v 1.16 1996/03/21 01:36:28 jtc Exp $
 .\"
 .\" Copyright (c) 1980, 1990, 1991, 1993, 1994
@@ -30,7 +30,7 @@
 .\"
 .\"     @(#)ps.1	8.3 (Berkeley) 4/18/94
 .\"
-.Dd $Mdocdate: February 14 2022 $
+.Dd $Mdocdate: February 15 2022 $
 .Dt PS 1
 .Os
 .Sh NAME
@@ -451,6 +451,8 @@ swapped.
 .\" for example,
 .\" .Xr lisp 1
 .\" in a garbage collect).
+.It c
+The process is chrooted.
 .It E
 The process is trying to exit.
 .It K
diff --git a/sys/kern/vfs_syscalls.c b/sys/kern/vfs_syscalls.c
index 3f7403980d0..bfce966733e 100644
--- a/sys/kern/vfs_syscalls.c
+++ b/sys/kern/vfs_syscalls.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: vfs_syscalls.c,v 1.354 2021/12/23 18:50:31 guenther Exp $	*/
+/*	$OpenBSD: vfs_syscalls.c,v 1.355 2022/02/15 23:16:00 rob Exp $	*/
 /*	$NetBSD: vfs_syscalls.c,v 1.71 1996/04/23 10:29:02 mycroft Exp $	*/
 
 /*
@@ -829,6 +829,7 @@ sys_chroot(struct proc *p, void *v, register_t *retval)
 		vrele(old_cdir);
 	} else
 		fdp->fd_rdir = nd.ni_vp;
+	p->p_p->ps_flags |= PS_CHROOT;
 	return (0);
 }
 
diff --git a/sys/sys/proc.h b/sys/sys/proc.h
index 2ebe71d1728..ce1c451bbcd 100644
--- a/sys/sys/proc.h
+++ b/sys/sys/proc.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: proc.h,v 1.325 2022/02/07 19:28:14 rob Exp $	*/
+/*	$OpenBSD: proc.h,v 1.326 2022/02/15 23:16:00 rob Exp $	*/
 /*	$NetBSD: proc.h,v 1.44 1996/04/22 01:23:21 christos Exp $	*/
 
 /*-
@@ -277,6 +277,7 @@ struct process {
 #define	PS_WXNEEDED	0x00200000	/* Process allowed to violate W^X */
 #define	PS_EXECPLEDGE	0x00400000	/* Has exec pledges */
 #define	PS_ORPHAN	0x00800000	/* Process is on an orphan list */
+#define	PS_CHROOT	0x01000000	/* Process is chrooted */
 
 #define	PS_BITS \
     ("\20" "\01CONTROLT" "\02EXEC" "\03INEXEC" "\04EXITING" "\05SUGID" \
@@ -284,7 +285,7 @@ struct process {
      "\013WAITED" "\014COREDUMP" "\015SINGLEEXIT" "\016SINGLEUNWIND" \
      "\017NOZOMBIE" "\020STOPPED" "\021SYSTEM" "\022EMBRYO" "\023ZOMBIE" \
      "\024NOBROADCASTKILL" "\025PLEDGE" "\026WXNEEDED" "\027EXECPLEDGE" \
-     "\030ORPHAN")
+     "\030ORPHAN" "\031CHROOT")
 
 
 struct kcov_dev;
-- 
2.20.1