PSARC/2003/246 Filesystem Driven Device Naming

5050715 logical device names not created during early boot
6292952 devfsadm mishandles optarg
6362924 devfsadm secondary link generation is not zones aware
6413127 Integrate the Devname Project
6464196 bfu should remove pt_chmod, obsoleted by /dev filesystem

--HG--
rename : usr/src/cmd/pt_chmod/Makefile => deleted_files/usr/src/cmd/pt_chmod/Makefile
rename : usr/src/cmd/pt_chmod/pt_chmod.c => deleted_files/usr/src/cmd/pt_chmod/pt_chmod.c

1 files changed, 55 insertions, 27 deletions

diff --git a/usr/src/uts/common/fs/devfs/devfs_subr.c b/usr/src/uts/common/fs/devfs/devfs_subr.c
index 42dd03db8f..819ed9ba56 100644
--- a/usr/src/uts/common/fs/devfs/devfs_subr.c
+++ b/usr/src/uts/common/fs/devfs/devfs_subr.c
@@ -2,9 +2,8 @@
  * CDDL HEADER START
  *
  * The contents of this file are subject to the terms of the
- * Common Development and Distribution License, Version 1.0 only
- * (the "License").  You may not use this file except in compliance
- * with the License.
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
  *
  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  * or http://www.opensolaris.org/os/licensing.
@@ -569,6 +568,57 @@ dv_vattr_merge(struct dv_node *dv, struct vattr *vap)
 }
 
 /*
+ * Get default device permission by consulting rules in
+ * privilege specification in minor node and /etc/minor_perm.
+ *
+ * This function is called from the devname filesystem to get default
+ * permissions for a device exported to a non-global zone.
+ */
+void
+devfs_get_defattr(struct vnode *vp, struct vattr *vap, int *no_fs_perm)
+{
+	mperm_t	mp;
+	struct dv_node *dv;
+
+	/* If vp isn't a dv_node, return something sensible */
+	if (!vn_matchops(vp, dv_vnodeops)) {
+		if (no_fs_perm)
+			*no_fs_perm = 0;
+		*vap = dv_vattr_file;
+		return;
+	}
+
+	/*
+	 * For minors not created by ddi_create_priv_minor_node(),
+	 * use devfs defaults.
+	 */
+	dv = VTODV(vp);
+	if (vp->v_type == VDIR) {
+		*vap = dv_vattr_dir;
+	} else if (dv->dv_flags & DV_NO_FSPERM) {
+		if (no_fs_perm)
+			*no_fs_perm = 1;
+		*vap = dv_vattr_priv;
+	} else {
+		/*
+		 * look up perm bits from minor_perm
+		 */
+		*vap = dv_vattr_file;
+		if (dev_minorperm(dv->dv_devi, dv->dv_name, &mp) == 0) {
+			VATTR_MP_MERGE((*vap), mp);
+			dcmn_err5(("%s: minor perm mode 0%o\n",
+			    dv->dv_name, vap->va_mode));
+		} else if (dv->dv_flags & DV_DFLT_MODE) {
+			ASSERT((dv->dv_dflt_mode & ~S_IAMB) == 0);
+			vap->va_mode &= ~S_IAMB;
+			vap->va_mode |= dv->dv_dflt_mode;
+			dcmn_err5(("%s: priv mode 0%o\n",
+			    dv->dv_name, vap->va_mode));
+		}
+	}
+}
+
+/*
  * dv_shadow_node
  *
  * Given a VDIR dv_node, find/create the associated VDIR
@@ -608,7 +658,6 @@ dv_shadow_node(
 	struct vattr	vattr;
 	int		create_tried;
 	int		error;
-	mperm_t		mp;
 
 	ASSERT(vp->v_type == VDIR || vp->v_type == VCHR || vp->v_type == VBLK);
 	dv = VTODV(vp);
@@ -688,30 +737,9 @@ lookup:
 
 	/*
 	 * Failed to find attribute in persistent backing store,
-	 * get default permission bits.  For minors not created by
-	 * ddi_create_priv_minor_node(), use devfs defaults.
+	 * get default permission bits.
 	 */
-	if (vp->v_type == VDIR) {
-		vattr = dv_vattr_dir;
-	} else if (dv->dv_flags & DV_NO_FSPERM) {
-		vattr = dv_vattr_priv;
-	} else {
-		/*
-		 * look up perm bits from minor_perm
-		 */
-		vattr = dv_vattr_file;
-		if (dev_minorperm(dv->dv_devi, dv->dv_name, &mp) == 0) {
-			VATTR_MP_MERGE(vattr, mp);
-			dcmn_err5(("%s: minor perm mode 0%o\n",
-			    dv->dv_name, vattr.va_mode));
-		} else if (dv->dv_flags & DV_DFLT_MODE) {
-			ASSERT((dv->dv_dflt_mode & ~S_IAMB) == 0);
-			vattr.va_mode &= ~S_IAMB;
-			vattr.va_mode |= dv->dv_dflt_mode;
-			dcmn_err5(("%s: priv mode 0%o\n",
-			    dv->dv_name, vattr.va_mode));
-		}
-	}
+	devfs_get_defattr(vp, &vattr, NULL);
 
 	dv_vattr_merge(dv, &vattr);
 	gethrestime(&vattr.va_atime);