/*
- * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2007 Apple Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
* devfs_vfsops.c
*
*/
+/*
+ * NOTICE: This file was modified by SPARTA, Inc. in 2005 to introduce
+ * support for mandatory and extensible security protections. This notice
+ * is included in support of clause 2.2 (b) of the Apple Public License,
+ * Version 2.0.
+ */
/*
* HISTORY
* Dieter Siegmund (dieter@apple.com) Wed Jul 14 13:37:59 PDT 1999
#include <sys/mount_internal.h>
#include <sys/malloc.h>
+#include <libkern/OSAtomic.h>
+
+#if CONFIG_MACF
+#include <security/mac_framework.h>
+#endif
+
#include "devfs.h"
#include "devfsdefs.h"
-static int devfs_statfs( struct mount *mp, struct vfsstatfs *sbp, vfs_context_t context);
-static int devfs_vfs_getattr(mount_t mp, struct vfs_attr *fsap, vfs_context_t context);
+static int devfs_statfs( struct mount *mp, struct vfsstatfs *sbp, vfs_context_t ctx);
+static int devfs_vfs_getattr(mount_t mp, struct vfs_attr *fsap, vfs_context_t ctx);
static struct vfstable * devfs_vfsp = 0;
+extern int setup_kmem;
+__private_extern__ void devfs_setup_kmem(void);
/*-
UID_ROOT, GID_WHEEL, 0622, "console");
devfs_make_node(makedev(2, 0), DEVFS_CHAR,
UID_ROOT, GID_WHEEL, 0666, "tty");
- devfs_make_node(makedev(3, 0), DEVFS_CHAR,
- UID_ROOT, GID_KMEM, 0640, "mem");
- devfs_make_node(makedev(3, 1), DEVFS_CHAR,
- UID_ROOT, GID_KMEM, 0640, "kmem");
+ if (setup_kmem) {
+ devfs_setup_kmem();
+ }
devfs_make_node(makedev(3, 2), DEVFS_CHAR,
UID_ROOT, GID_WHEEL, 0666, "null");
devfs_make_node(makedev(3, 3), DEVFS_CHAR,
return 0;
}
+__private_extern__ void
+devfs_setup_kmem(void)
+{
+ devfs_make_node(makedev(3, 0), DEVFS_CHAR,
+ UID_ROOT, GID_KMEM, 0640, "mem");
+ devfs_make_node(makedev(3, 1), DEVFS_CHAR,
+ UID_ROOT, GID_KMEM, 0640, "kmem");
+}
+
+
/*-
* mp - pointer to 'mount' structure
* path - addr in user space of mount point (ie /usr or whatever)
*/
/*proto*/
int
-devfs_mount(struct mount *mp, __unused vnode_t devvp, __unused user_addr_t data, vfs_context_t context)
+devfs_mount(struct mount *mp, __unused vnode_t devvp, __unused user_addr_t data, vfs_context_t ctx)
{
struct devfsmount *devfs_mp_p; /* devfs specific mount info */
int error;
bzero(mp->mnt_vfsstat.f_mntfromname, MAXPATHLEN);
bcopy("devfs",mp->mnt_vfsstat.f_mntfromname, 5);
- (void)devfs_statfs(mp, &mp->mnt_vfsstat, context);
+ (void)devfs_statfs(mp, &mp->mnt_vfsstat, ctx);
return 0;
}
static int
-devfs_start(__unused struct mount *mp, __unused int flags, __unused vfs_context_t context)
+devfs_start(__unused struct mount *mp, __unused int flags, __unused vfs_context_t ctx)
{
return 0;
}
* Unmount the filesystem described by mp.
*/
static int
-devfs_unmount( struct mount *mp, int mntflags, __unused vfs_context_t context)
+devfs_unmount( struct mount *mp, int mntflags, __unused vfs_context_t ctx)
{
struct devfsmount *devfs_mp_p = (struct devfsmount *)mp->mnt_data;
int flags = 0;
/* return the address of the root vnode in *vpp */
static int
-devfs_root(struct mount *mp, struct vnode **vpp, vfs_context_t context)
+devfs_root(struct mount *mp, struct vnode **vpp, __unused vfs_context_t ctx)
{
struct devfsmount *devfs_mp_p = (struct devfsmount *)(mp->mnt_data);
int error;
DEVFS_LOCK();
- error = devfs_dntovn(devfs_mp_p->plane_root->de_dnp, vpp, context->vc_proc);
+ /* last parameter to devfs_dntovn() is ignored */
+ error = devfs_dntovn(devfs_mp_p->plane_root->de_dnp, vpp, NULL);
DEVFS_UNLOCK();
return error;
}
static int
-devfs_statfs( struct mount *mp, struct vfsstatfs *sbp, __unused vfs_context_t context)
+devfs_statfs( struct mount *mp, struct vfsstatfs *sbp, __unused vfs_context_t ctx)
{
struct devfsmount *devfs_mp_p = (struct devfsmount *)mp->mnt_data;
}
static int
-devfs_vfs_getattr(mount_t mp, struct vfs_attr *fsap, vfs_context_t context)
+devfs_vfs_getattr(__unused mount_t mp, struct vfs_attr *fsap, __unused vfs_context_t ctx)
{
VFSATTR_RETURN(fsap, f_objcount, devfs_stats.nodes);
VFSATTR_RETURN(fsap, f_maxobjcount, devfs_stats.nodes);
}
static int
-devfs_sync(__unused struct mount *mp, __unused int waitfor, __unused vfs_context_t context)
+devfs_sync(__unused struct mount *mp, __unused int waitfor, __unused vfs_context_t ctx)
{
return (0);
}
static int
-devfs_vget(__unused struct mount *mp, __unused ino64_t ino, __unused struct vnode **vpp, __unused vfs_context_t context)
+devfs_vget(__unused struct mount *mp, __unused ino64_t ino, __unused struct vnode **vpp, __unused vfs_context_t ctx)
{
return ENOTSUP;
}
*/
static int
-devfs_fhtovp (__unused struct mount *mp, __unused int fhlen, __unused unsigned char *fhp, __unused struct vnode **vpp, __unused vfs_context_t context)
+devfs_fhtovp (__unused struct mount *mp, __unused int fhlen, __unused unsigned char *fhp, __unused struct vnode **vpp, __unused vfs_context_t ctx)
{
return (EINVAL);
}
static int
-devfs_vptofh (__unused struct vnode *vp, __unused int *fhlenp, __unused unsigned char *fhp, __unused vfs_context_t context)
+devfs_vptofh (__unused struct vnode *vp, __unused int *fhlenp, __unused unsigned char *fhp, __unused vfs_context_t ctx)
{
return (EINVAL);
}
static int
devfs_sysctl(__unused int *name, __unused u_int namelen, __unused user_addr_t oldp,
__unused size_t *oldlenp, __unused user_addr_t newp,
- __unused size_t newlen, __unused vfs_context_t context)
+ __unused size_t newlen, __unused vfs_context_t ctx)
{
return (ENOTSUP);
}
int error;
struct nameidata nd;
struct vnode * vp;
- struct vfs_context context;
+ vfs_context_t ctx = vfs_context_kernel();
if (devfs_vfsp == NULL) {
printf("devfs_kernel_mount: devfs_vfsp is NULL\n");
return (EINVAL);
}
- context.vc_proc = current_proc();
- context.vc_ucred = kauth_cred_get();
/*
* Get vnode to be covered
*/
NDINIT(&nd, LOOKUP, FOLLOW | LOCKLEAF, UIO_SYSSPACE32,
- CAST_USER_ADDR_T(mntname), &context);
+ CAST_USER_ADDR_T(mntname), ctx);
if ((error = namei(&nd))) {
printf("devfs_kernel_mount: failed to find directory '%s', %d",
mntname, error);
nameidone(&nd);
vp = nd.ni_vp;
- if ((error = VNOP_FSYNC(vp, MNT_WAIT, &context))) {
+ if ((error = VNOP_FSYNC(vp, MNT_WAIT, ctx))) {
printf("devfs_kernel_mount: vnop_fsync failed: %d\n", error);
vnode_put(vp);
return (error);
/* Initialize the default IO constraints */
mp->mnt_maxreadcnt = mp->mnt_maxwritecnt = MAXPHYS;
mp->mnt_segreadcnt = mp->mnt_segwritecnt = 32;
+ mp->mnt_ioflags = 0;
+ mp->mnt_realrootvp = NULLVP;
+ mp->mnt_authcache_ttl = CACHED_LOOKUP_RIGHT_TTL;
mount_lock_init(mp);
TAILQ_INIT(&mp->mnt_vnodelist);
devfs_vfsp->vfc_64bitready = TRUE;
mp->mnt_flag = 0;
mp->mnt_flag |= devfs_vfsp->vfc_flags & MNT_VISFLAGMASK;
- strncpy(mp->mnt_vfsstat.f_fstypename, devfs_vfsp->vfc_name, MFSTYPENAMELEN);
+ strlcpy(mp->mnt_vfsstat.f_fstypename, devfs_vfsp->vfc_name, MFSTYPENAMELEN);
vp->v_mountedhere = mp;
mp->mnt_vnodecovered = vp;
mp->mnt_vfsstat.f_owner = kauth_cred_getuid(kauth_cred_get());
(void) copystr(mntname, mp->mnt_vfsstat.f_mntonname, MAXPATHLEN - 1, 0);
+#if CONFIG_MACF
+ mac_mount_label_init(mp);
+ mac_mount_label_associate(ctx, mp);
+#endif
- error = devfs_mount(mp, NULL, NULL, &context);
+ error = devfs_mount(mp, NULL, USER_ADDR_NULL, ctx);
if (error) {
printf("devfs_kernel_mount: mount %s failed: %d", mntname, error);
vfs_unbusy(mp);
mount_lock_destroy(mp);
+#if CONFIG_MACF
+ mac_mount_label_destroy(mp);
+#endif
FREE_ZONE(mp, sizeof (struct mount), M_MOUNT);
vnode_put(vp);
return (error);
devfs_fhtovp,
devfs_vptofh,
devfs_init,
- devfs_sysctl
+ devfs_sysctl,
+ NULL,
+ {NULL}
};
projects / apple / xnu.git / blobdiff