From 16d4c1de7b40f1cc0d323b9ecc5a38afb7a42f8a Mon Sep 17 00:00:00 2001
From: Mark Johnston <markj@FreeBSD.org>
Date: Thu, 29 Sep 2022 13:07:52 -0400
Subject: [PATCH] cam: Provide compatibility for CAMGETPASSTHRU for periph
 drivers

The CAM version bump 0x19 -> 0x1a changed the CAMGETPASSTHRU definition,
so applications using the old ioctl are broken.  However, that version
change did not affect anything relating to the ioctl implementation for
periphs.

Fixes:		8f9be1eed11c ("cam(4): Improve XPT_DEV_MATCH")
PR:		264709
Tested by:	andreas.mahling@googlemail.com
Reviewed by:	imp

(cherry picked from commit 0cd631ee0693dd7337c38b251044e018aad6fbaf)
---
 sys/cam/cam_periph.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sys/cam/cam_periph.c b/sys/cam/cam_periph.c
index ff90968800a0..e7fbc8c41c0a 100644
--- a/sys/cam/cam_periph.c
+++ b/sys/cam/cam_periph.c
@@ -52,6 +52,7 @@ __FBSDID("$FreeBSD$");
 
 #include <cam/cam.h>
 #include <cam/cam_ccb.h>
+#include <cam/cam_compat.h>
 #include <cam/cam_queue.h>
 #include <cam/cam_xpt_periph.h>
 #include <cam/cam_xpt_internal.h>
@@ -1120,6 +1121,7 @@ cam_periph_ioctl(struct cam_periph *periph, u_long cmd, caddr_t addr,
 	error = found = 0;
 
 	switch(cmd){
+	case CAMGETPASSTHRU_0x19:
 	case CAMGETPASSTHRU:
 		ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
 		xpt_setup_ccb(&ccb->ccb_h,