From 800b42bde016039d7b409b759e52baaed5996d33 Mon Sep 17 00:00:00 2001
From: Poul-Henning Kamp <phk@FreeBSD.org>
Date: Thu, 17 Mar 2005 12:07:00 +0000
Subject: [PATCH] Prepare for the final onslaught on devices:

Move uid/gid/mode from cdev to cdevsw.

Add kind field to use for devd(8) later.

Bump both D_VERSION and __FreeBSD_version
---
 sys/fs/devfs/devfs_devs.c |  6 +++---
 sys/kern/kern_conf.c      | 14 +++++++++-----
 sys/sys/conf.h            | 10 ++++++----
 sys/sys/param.h           |  2 +-
 4 files changed, 19 insertions(+), 13 deletions(-)

diff --git a/sys/fs/devfs/devfs_devs.c b/sys/fs/devfs/devfs_devs.c
index 761caa5e8cbf..7a1647ba2df0 100644
--- a/sys/fs/devfs/devfs_devs.c
+++ b/sys/fs/devfs/devfs_devs.c
@@ -318,9 +318,9 @@ devfs_populate(struct devfs_mount *dm)
 				bcopy(pdev->si_name, de->de_symlink, j);
 			} else {
 				de->de_inode = i;
-				de->de_uid = dev->si_uid;
-				de->de_gid = dev->si_gid;
-				de->de_mode = dev->si_mode;
+				de->de_uid = dev->si_devsw->d_uid;
+				de->de_gid = dev->si_devsw->d_gid;
+				de->de_mode = dev->si_devsw->d_mode;
 				de->de_dirent->d_type = DT_CHR;
 			}
 #ifdef MAC
diff --git a/sys/kern/kern_conf.c b/sys/kern/kern_conf.c
index d29e31982e46..884872cfd3e6 100644
--- a/sys/kern/kern_conf.c
+++ b/sys/kern/kern_conf.c
@@ -365,7 +365,7 @@ prep_cdevsw(struct cdevsw *devsw)
 
 	dev_lock();
 
-	if (devsw->d_version != D_VERSION_00) {
+	if (devsw->d_version != D_VERSION_01) {
 		printf(
 		    "WARNING: Device driver \"%s\" has wrong version %s\n",
 		    devsw->d_name, "and is disabled.  Recompile KLD module.");
@@ -419,8 +419,15 @@ make_dev(struct cdevsw *devsw, int minornr, uid_t uid, gid_t gid, int perms, con
 	KASSERT((minornr & ~MAXMINOR) == 0,
 	    ("Invalid minor (0x%x) in make_dev", minornr));
 
-	if (!(devsw->d_flags & D_INIT))
+	if (!(devsw->d_flags & D_INIT)) {
 		prep_cdevsw(devsw);
+		if (devsw->d_uid == 0)
+			devsw->d_uid = uid;
+		if (devsw->d_gid == 0)
+			devsw->d_gid = gid;
+		if (devsw->d_mode == 0)
+			devsw->d_mode = perms;
+	}
 	dev = allocdev();
 	dev_lock();
 	dev = newdev(devsw->d_maj, minornr, dev);
@@ -448,9 +455,6 @@ make_dev(struct cdevsw *devsw, int minornr, uid_t uid, gid_t gid, int perms, con
 	va_end(ap);
 		
 	dev->si_devsw = devsw;
-	dev->si_uid = uid;
-	dev->si_gid = gid;
-	dev->si_mode = perms;
 	dev->si_flags |= SI_NAMED;
 
 	LIST_INSERT_HEAD(&devsw->d_devs, dev, si_list);
diff --git a/sys/sys/conf.h b/sys/sys/conf.h
index f743ddef6a3b..6dc2561cbd54 100644
--- a/sys/sys/conf.h
+++ b/sys/sys/conf.h
@@ -79,9 +79,6 @@ struct cdev {
 	void		*si_drv1, *si_drv2;
 	struct cdevsw	*si_devsw;
 	int		si_iosize_max;	/* maximum I/O size (for physio &al) */
-	uid_t		si_uid;
-	gid_t		si_gid;
-	mode_t		si_mode;
 	u_long		si_usecount;
 	u_long		si_threadcount;
 	union {
@@ -176,7 +173,8 @@ typedef int dumper_t(
  * Version numbers.
  */
 #define D_VERSION_00	0x20011966
-#define D_VERSION	D_VERSION_00
+#define D_VERSION_01	0x17032005	/* Add d_uid,gid,mode & kind */
+#define D_VERSION	D_VERSION_01
 
 /*
  * Flags used for internal housekeeping
@@ -205,6 +203,10 @@ struct cdevsw {
 	d_kqfilter_t		*d_kqfilter;
 	d_purge_t		*d_purge;
 	d_spare2_t		*d_spare2;
+	uid_t			d_uid;
+	gid_t			d_gid;
+	mode_t			d_mode;
+	const char		*d_kind;
 
 	/* These fields should not be messed with by drivers */
 	LIST_ENTRY(cdevsw)	d_list;
diff --git a/sys/sys/param.h b/sys/sys/param.h
index f6b6382acc6e..05c15b6e6767 100644
--- a/sys/sys/param.h
+++ b/sys/sys/param.h
@@ -57,7 +57,7 @@
  *		is created, otherwise 1.
  */
 #undef __FreeBSD_version
-#define __FreeBSD_version 600020	/* Master, propagated to newvers */
+#define __FreeBSD_version 600021	/* Master, propagated to newvers */
 
 #ifndef LOCORE
 #include <sys/types.h>