/*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
*
* @APPLE_LICENSE_HEADER_START@
*
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
-#include <sys/vnode.h>
+#include <sys/vnode_internal.h>
#include <sys/proc.h>
-#include <sys/mount.h>
+#include <sys/kauth.h>
+#include <sys/mount_internal.h>
#include <sys/malloc.h>
#include "devfs.h"
#include "devfsdefs.h"
-static int devfs_statfs( struct mount *mp, struct statfs *sbp, struct proc *p);
+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 struct vfsconf * devfs_vfsp = 0;
-static int kernel_mount = 0;
+static struct vfstable * devfs_vfsp = 0;
+extern int setup_kmem;
/*-
static int
devfs_init(struct vfsconf *vfsp)
{
- devfs_vfsp = vfsp; /* remember this for devfs_kernel_mount below */
+ devfs_vfsp = (struct vfstable *)vfsp; /* remember this for devfs_kernel_mount below */
if (devfs_sinit())
- return (EOPNOTSUPP);
- printf("devfs enabled\n");
+ return (ENOTSUP);
devfs_make_node(makedev(0, 0), DEVFS_CHAR,
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, char *path, caddr_t data,
- struct nameidata *ndp, struct proc *p)
+devfs_mount(struct mount *mp, __unused vnode_t devvp, __unused user_addr_t data, vfs_context_t context)
{
struct devfsmount *devfs_mp_p; /* devfs specific mount info */
int error;
- size_t size;
/*-
* If they just want to update, we don't need to do anything.
return 0;
}
+ /* Advisory locking should be handled at the VFS layer */
+ vfs_setlocklocal(mp);
+
/*-
* Well, it's not an update, it's a real mount request.
* Time to get dirty.
* Fill out some fields
*/
mp->mnt_data = (qaddr_t)devfs_mp_p;
- mp->mnt_stat.f_type = mp->mnt_vfc->vfc_typenum;
- mp->mnt_stat.f_fsid.val[0] = (int32_t)(void *)devfs_mp_p;
- mp->mnt_stat.f_fsid.val[1] = mp->mnt_stat.f_type;
+ mp->mnt_vfsstat.f_fsid.val[0] = (int32_t)(void *)devfs_mp_p;
+ mp->mnt_vfsstat.f_fsid.val[1] = vfs_typenum(mp);
mp->mnt_flag |= MNT_LOCAL;
- DEVFS_LOCK(p);
+ DEVFS_LOCK();
error = dev_dup_plane(devfs_mp_p);
- DEVFS_UNLOCK(p);
+ DEVFS_UNLOCK();
+
if (error) {
mp->mnt_data = (qaddr_t)0;
FREE((caddr_t)devfs_mp_p, M_DEVFSMNT);
return (error);
- }
+ } else
+ DEVFS_INCR_MOUNTS();
/*-
* Copy in the name of the directory the filesystem
* to be tidy.
*/
- if (!kernel_mount) {
- copyinstr(path, (caddr_t)mp->mnt_stat.f_mntonname,
- sizeof(mp->mnt_stat.f_mntonname)-1, &size);
- bzero(mp->mnt_stat.f_mntonname + size,
- sizeof(mp->mnt_stat.f_mntonname) - size);
- }
- bzero(mp->mnt_stat.f_mntfromname, MNAMELEN);
- bcopy("devfs",mp->mnt_stat.f_mntfromname, 5);
- DEVFS_INCR_MOUNTS();
- (void)devfs_statfs(mp, &mp->mnt_stat, p);
+ bzero(mp->mnt_vfsstat.f_mntfromname, MAXPATHLEN);
+ bcopy("devfs",mp->mnt_vfsstat.f_mntfromname, 5);
+ (void)devfs_statfs(mp, &mp->mnt_vfsstat, context);
+
return 0;
}
static int
-devfs_start(struct mount *mp, int flags, struct proc *p)
+devfs_start(__unused struct mount *mp, __unused int flags, __unused vfs_context_t context)
{
return 0;
}
* Unmount the filesystem described by mp.
*/
static int
-devfs_unmount( struct mount *mp, int mntflags, struct proc *p)
+devfs_unmount( struct mount *mp, int mntflags, __unused vfs_context_t context)
{
struct devfsmount *devfs_mp_p = (struct devfsmount *)mp->mnt_data;
int flags = 0;
if (error && !force)
return error;
- DEVFS_LOCK(p);
+ DEVFS_LOCK();
devfs_free_plane(devfs_mp_p);
- DEVFS_UNLOCK(p);
- FREE((caddr_t)devfs_mp_p, M_DEVFSMNT);
+ DEVFS_UNLOCK();
+
DEVFS_DECR_MOUNTS();
+
+ FREE((caddr_t)devfs_mp_p, M_DEVFSMNT);
mp->mnt_data = (qaddr_t)0;
mp->mnt_flag &= ~MNT_LOCAL;
/* return the address of the root vnode in *vpp */
static int
-devfs_root(struct mount *mp, struct vnode **vpp)
+devfs_root(struct mount *mp, struct vnode **vpp, vfs_context_t context)
{
struct devfsmount *devfs_mp_p = (struct devfsmount *)(mp->mnt_data);
int error;
- error = devfs_dntovn(devfs_mp_p->plane_root->de_dnp,vpp,
- current_proc());
- return error;
-}
+ DEVFS_LOCK();
+ error = devfs_dntovn(devfs_mp_p->plane_root->de_dnp, vpp, context->vc_proc);
+ DEVFS_UNLOCK();
-static int
-devfs_quotactl(struct mount *mp, int cmds, uid_t uid, caddr_t arg,
- struct proc *p)
-{
- return EOPNOTSUPP;
+ return error;
}
static int
-devfs_statfs( struct mount *mp, struct statfs *sbp, struct proc *p)
+devfs_statfs( struct mount *mp, struct vfsstatfs *sbp, __unused vfs_context_t context)
{
struct devfsmount *devfs_mp_p = (struct devfsmount *)mp->mnt_data;
/*-
* Fill in the stat block.
*/
- sbp->f_type = mp->mnt_stat.f_type;
+ //sbp->f_type = mp->mnt_vfsstat.f_type;
sbp->f_flags = 0; /* XXX */
sbp->f_bsize = 512;
sbp->f_iosize = 512;
sbp->f_files = devfs_stats.nodes;
sbp->f_ffree = 0;
sbp->f_fsid.val[0] = (int32_t)(void *)devfs_mp_p;
- sbp->f_fsid.val[1] = mp->mnt_stat.f_type;
+ sbp->f_fsid.val[1] = vfs_typenum(mp);
- /*-
- * Copy the mounted on and mounted from names into
- * the passed in stat block, if it is not the one
- * in the mount structure.
- */
- if (sbp != &mp->mnt_stat) {
- bcopy((caddr_t)mp->mnt_stat.f_mntonname,
- (caddr_t)&sbp->f_mntonname[0], MNAMELEN);
- bcopy((caddr_t)mp->mnt_stat.f_mntfromname,
- (caddr_t)&sbp->f_mntfromname[0], MNAMELEN);
+ return 0;
+}
+
+static int
+devfs_vfs_getattr(mount_t mp, struct vfs_attr *fsap, vfs_context_t context)
+{
+ VFSATTR_RETURN(fsap, f_objcount, devfs_stats.nodes);
+ VFSATTR_RETURN(fsap, f_maxobjcount, devfs_stats.nodes);
+ VFSATTR_RETURN(fsap, f_bsize, 512);
+ VFSATTR_RETURN(fsap, f_iosize, 512);
+ if (VFSATTR_IS_ACTIVE(fsap, f_blocks) || VFSATTR_IS_ACTIVE(fsap, f_bused)) {
+ fsap->f_blocks = (devfs_stats.mounts * sizeof(struct devfsmount)
+ + devfs_stats.nodes * sizeof(devnode_t)
+ + devfs_stats.entries * sizeof(devdirent_t)
+ + devfs_stats.stringspace
+ ) / fsap->f_bsize;
+ fsap->f_bused = fsap->f_blocks;
+ VFSATTR_SET_SUPPORTED(fsap, f_blocks);
+ VFSATTR_SET_SUPPORTED(fsap, f_bused);
}
+ VFSATTR_RETURN(fsap, f_bfree, 0);
+ VFSATTR_RETURN(fsap, f_bavail, 0);
+ VFSATTR_RETURN(fsap, f_files, devfs_stats.nodes);
+ VFSATTR_RETURN(fsap, f_ffree, 0);
+ VFSATTR_RETURN(fsap, f_fssubtype, 0);
+
return 0;
}
static int
-devfs_sync(struct mount *mp, int waitfor,struct ucred *cred,struct proc *p)
+devfs_sync(__unused struct mount *mp, __unused int waitfor, __unused vfs_context_t context)
{
return (0);
}
static int
-devfs_vget(struct mount *mp, void * ino,struct vnode **vpp)
+devfs_vget(__unused struct mount *mp, __unused ino64_t ino, __unused struct vnode **vpp, __unused vfs_context_t context)
{
- return EOPNOTSUPP;
+ return ENOTSUP;
}
/*************************************************************
*/
static int
-devfs_fhtovp (struct mount *mp, struct fid *fhp, struct mbuf *nam,
- struct vnode **vpp, int *exflagsp, struct ucred **credanonp)
+devfs_fhtovp (__unused struct mount *mp, __unused int fhlen, __unused unsigned char *fhp, __unused struct vnode **vpp, __unused vfs_context_t context)
{
return (EINVAL);
}
static int
-devfs_vptofh (struct vnode *vp, struct fid *fhp)
+devfs_vptofh (__unused struct vnode *vp, __unused int *fhlenp, __unused unsigned char *fhp, __unused vfs_context_t context)
{
return (EINVAL);
}
static int
-devfs_sysctl(name, namelen, oldp, oldlenp, newp, newlen, p)
- int *name;
- u_int namelen;
- void *oldp;
- size_t *oldlenp;
- void *newp;
- size_t newlen;
- struct proc *p;
+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)
{
- return (EOPNOTSUPP);
+ return (ENOTSUP);
}
#include <sys/namei.h>
{
struct mount *mp;
int error;
- struct proc *procp;
struct nameidata nd;
struct vnode * vp;
+ struct vfs_context context;
if (devfs_vfsp == NULL) {
printf("devfs_kernel_mount: devfs_vfsp is NULL\n");
return (EINVAL);
}
- procp = current_proc();
+ context.vc_proc = current_proc();
+ context.vc_ucred = kauth_cred_get();
/*
* Get vnode to be covered
*/
- NDINIT(&nd, LOOKUP, FOLLOW | LOCKLEAF, UIO_SYSSPACE,
- mntname, procp);
+ NDINIT(&nd, LOOKUP, FOLLOW | LOCKLEAF, UIO_SYSSPACE32,
+ CAST_USER_ADDR_T(mntname), &context);
if ((error = namei(&nd))) {
printf("devfs_kernel_mount: failed to find directory '%s', %d",
mntname, error);
return (error);
}
+ nameidone(&nd);
vp = nd.ni_vp;
- if ((error = vinvalbuf(vp, V_SAVE, procp->p_ucred, procp, 0, 0))) {
- printf("devfs_kernel_mount: vinval failed: %d\n", error);
- vput(vp);
+
+ if ((error = VNOP_FSYNC(vp, MNT_WAIT, &context))) {
+ printf("devfs_kernel_mount: vnop_fsync failed: %d\n", error);
+ vnode_put(vp);
+ return (error);
+ }
+ if ((error = buf_invalidateblks(vp, BUF_WRITE_DATA, 0, 0))) {
+ printf("devfs_kernel_mount: buf_invalidateblks failed: %d\n", error);
+ vnode_put(vp);
return (error);
}
- if (vp->v_type != VDIR) {
+ if (vnode_isdir(vp) == 0) {
printf("devfs_kernel_mount: '%s' is not a directory\n", mntname);
- vput(vp);
+ vnode_put(vp);
return (ENOTDIR);
}
- if (vp->v_mountedhere != NULL) {
- vput(vp);
+ if ((vnode_mountedhere(vp))) {
+ vnode_put(vp);
return (EBUSY);
}
/*
* Allocate and initialize the filesystem.
*/
- mp = _MALLOC_ZONE((u_long)sizeof(struct mount), M_MOUNT, M_WAITOK);
+ MALLOC_ZONE(mp, struct mount *, (u_long)sizeof(struct mount),
+ M_MOUNT, M_WAITOK);
bzero((char *)mp, (u_long)sizeof(struct mount));
- /* Initialize the default IO constraints */
- mp->mnt_maxreadcnt = mp->mnt_maxwritecnt = MAXPHYS;
- mp->mnt_segreadcnt = mp->mnt_segwritecnt = 32;
+ /* Initialize the default IO constraints */
+ mp->mnt_maxreadcnt = mp->mnt_maxwritecnt = MAXPHYS;
+ mp->mnt_segreadcnt = mp->mnt_segwritecnt = 32;
+
+ mount_lock_init(mp);
+ TAILQ_INIT(&mp->mnt_vnodelist);
+ TAILQ_INIT(&mp->mnt_workerqueue);
+ TAILQ_INIT(&mp->mnt_newvnodes);
- lockinit(&mp->mnt_lock, PVFS, "vfslock", 0, 0);
- (void)vfs_busy(mp, LK_NOWAIT, 0, procp);
- LIST_INIT(&mp->mnt_vnodelist);
+ (void)vfs_busy(mp, LK_NOWAIT);
mp->mnt_op = devfs_vfsp->vfc_vfsops;
- mp->mnt_vfc = devfs_vfsp;
+ mp->mnt_vtable = devfs_vfsp;
devfs_vfsp->vfc_refcount++;
+ devfs_vfsp->vfc_threadsafe = TRUE;
+ devfs_vfsp->vfc_64bitready = TRUE;
mp->mnt_flag = 0;
mp->mnt_flag |= devfs_vfsp->vfc_flags & MNT_VISFLAGMASK;
- strncpy(mp->mnt_stat.f_fstypename, devfs_vfsp->vfc_name, MFSNAMELEN);
+ strncpy(mp->mnt_vfsstat.f_fstypename, devfs_vfsp->vfc_name, MFSTYPENAMELEN);
vp->v_mountedhere = mp;
mp->mnt_vnodecovered = vp;
- mp->mnt_stat.f_owner = procp->p_ucred->cr_uid;
- (void) copystr(mntname, mp->mnt_stat.f_mntonname, MNAMELEN - 1, 0);
+ mp->mnt_vfsstat.f_owner = kauth_cred_getuid(kauth_cred_get());
+ (void) copystr(mntname, mp->mnt_vfsstat.f_mntonname, MAXPATHLEN - 1, 0);
+
+ error = devfs_mount(mp, NULL, NULL, &context);
- kernel_mount = 1;
- error = devfs_mount(mp, mntname, NULL, NULL, procp);
- kernel_mount = 0;
if (error) {
printf("devfs_kernel_mount: mount %s failed: %d", mntname, error);
- mp->mnt_vfc->vfc_refcount--;
- vfs_unbusy(mp, procp);
- _FREE_ZONE(mp, sizeof (struct mount), M_MOUNT);
- vput(vp);
+ mp->mnt_vtable->vfc_refcount--;
+
+ vfs_unbusy(mp);
+
+ mount_lock_destroy(mp);
+ FREE_ZONE(mp, sizeof (struct mount), M_MOUNT);
+ vnode_put(vp);
return (error);
}
- printf("devfs on %s\n", mntname);
- simple_lock(&mountlist_slock);
- CIRCLEQ_INSERT_TAIL(&mountlist, mp, mnt_list);
- simple_unlock(&mountlist_slock);
- VOP_UNLOCK(vp, 0, procp);
- vfs_unbusy(mp, procp);
+ vnode_ref(vp);
+ vnode_put(vp);
+ vfs_unbusy(mp);
+ mount_list_add(mp);
return (0);
}
devfs_start,
devfs_unmount,
devfs_root,
- devfs_quotactl,
- devfs_statfs,
+ NULL, /* quotactl */
+ devfs_vfs_getattr,
devfs_sync,
devfs_vget,
devfs_fhtovp,
devfs_vptofh,
devfs_init,
- devfs_sysctl,
+ devfs_sysctl
};
projects / apple / xnu.git / blobdiff