int
ext2fs_mountroot(void)
{
extern struct vnode *rootvp;
struct m_ext2fs *fs;
struct mount *mp;
struct ufsmount *ump;
int error;
if (device_class(root_device) != DV_DISK)
return ENODEV;
if ((error = vfs_rootmountalloc(MOUNT_EXT2FS, "root_device", &mp))) {
vrele(rootvp);
return error;
}
if ((error = ext2fs_mountfs(rootvp, mp)) != 0) {
vfs_unbusy(mp, false, NULL);
vfs_destroy(mp);
return error;
}
mountlist_append(mp);
ump = VFSTOUFS(mp);
fs = ump->um_e2fs;
ext2fs_sb_setmountinfo(fs, mp);
(void)ext2fs_statvfs(mp, &mp->mnt_stat);
vfs_unbusy(mp, false, NULL);
setrootfstime((time_t)fs->e2fs.e2fs_wtime);
return 0;
}
static int
ntfs_mountroot(void)
{
struct mount *mp;
struct lwp *l = curlwp; /* XXX */
int error;
struct ntfs_args args;
if (device_class(root_device) != DV_DISK)
return (ENODEV);
if ((error = vfs_rootmountalloc(MOUNT_NTFS, "root_device", &mp))) {
vrele(rootvp);
return (error);
}
args.flag = 0;
args.uid = 0;
args.gid = 0;
args.mode = 0777;
if ((error = ntfs_mountfs(rootvp, mp, &args, l)) != 0) {
vfs_unbusy(mp, false, NULL);
vfs_destroy(mp);
return (error);
}
mountlist_append(mp);
(void)ntfs_statvfs(mp, &mp->mnt_stat);
vfs_unbusy(mp, false, NULL);
return (0);
}
int
cd9660_mountroot(void)
{
struct mount *mp;
struct lwp *l = curlwp;
int error;
struct iso_args args;
if (device_class(root_device) != DV_DISK)
return (ENODEV);
if ((error = vfs_rootmountalloc(MOUNT_CD9660, "root_device", &mp))
!= 0) {
vrele(rootvp);
return (error);
}
args.flags = ISOFSMNT_ROOT;
if ((error = iso_mountfs(rootvp, mp, l, &args)) != 0) {
vfs_unbusy(mp, false, NULL);
vfs_destroy(mp);
return (error);
}
mountlist_append(mp);
(void)cd9660_statvfs(mp, &mp->mnt_stat);
vfs_unbusy(mp, false, NULL);
return (0);
}
/*
* Called by main() when ufs is going to be mounted as root.
*/
lfs_mountroot()
{
extern struct vnode *rootvp;
struct fs *fs;
struct mount *mp;
struct proc *p = curproc; /* XXX */
int error;
/*
* Get vnodes for swapdev and rootdev.
*/
if ((error = bdevvp(swapdev, &swapdev_vp)) ||
(error = bdevvp(rootdev, &rootvp))) {
printf("lfs_mountroot: can't setup bdevvp's");
return (error);
}
if (error = vfs_rootmountalloc("lfs", "root_device", &mp))
return (error);
if (error = lfs_mountfs(rootvp, mp, p)) {
mp->mnt_vfc->vfc_refcount--;
vfs_unbusy(mp, p);
free(mp, M_MOUNT);
return (error);
}
simple_lock(&mountlist_slock);
CIRCLEQ_INSERT_TAIL(&mountlist, mp, mnt_list);
simple_unlock(&mountlist_slock);
(void)lfs_statfs(mp, &mp->mnt_stat, p);
vfs_unbusy(mp, p);
return (0);
}
int
v7fs_mountroot(void)
{
struct mount *mp;
int error;
DPRINTF("");
/* On mountroot, devvp (rootdev) is opened by vfs_mountroot */
if ((error = is_v7fs_partition (rootvp)))
return error;
if ((error = vfs_rootmountalloc(MOUNT_V7FS, "root_device", &mp))) {
DPRINTF("mountalloc error=%d\n", error);
vrele(rootvp);
return error;
}
if ((error = v7fs_mountfs(rootvp, mp, _BYTE_ORDER))) {
DPRINTF("mountfs error=%d\n", error);
vfs_unbusy(mp, false, NULL);
vfs_destroy(mp);
return error;
}
mountlist_append(mp);
vfs_unbusy(mp, false, NULL);
return 0;
}
int
cd9660_mountroot(void)
{
struct mount *mp;
extern struct vnode *rootvp;
struct proc *p = curproc; /* XXX */
int error;
struct iso_args args;
/*
* Get vnodes for swapdev and rootdev.
*/
if ((error = bdevvp(swapdev, &swapdev_vp)) ||
(error = bdevvp(rootdev, &rootvp))) {
printf("cd9660_mountroot: can't setup bdevvp's");
return (error);
}
if ((error = vfs_rootmountalloc("cd9660", "root_device", &mp)) != 0)
return (error);
args.flags = ISOFSMNT_ROOT;
if ((error = iso_mountfs(rootvp, mp, p, &args)) != 0) {
mp->mnt_vfc->vfc_refcount--;
vfs_unbusy(mp);
free(mp, M_MOUNT, 0);
return (error);
}
TAILQ_INSERT_TAIL(&mountlist, mp, mnt_list);
(void)cd9660_statfs(mp, &mp->mnt_stat, p);
vfs_unbusy(mp);
inittodr(0);
return (0);
}
int
compat_20_netbsd32_getfsstat(struct lwp *l, const struct compat_20_netbsd32_getfsstat_args *uap, register_t *retval)
{
/* {
syscallarg(netbsd32_statfsp_t) buf;
syscallarg(netbsd32_long) bufsize;
syscallarg(int) flags;
} */
struct mount *mp, *nmp;
struct statvfs *sp;
struct netbsd32_statfs sb32;
void *sfsp;
long count, maxcount, error;
maxcount = SCARG(uap, bufsize) / sizeof(struct netbsd32_statfs);
sfsp = SCARG_P32(uap, buf);
mutex_enter(&mountlist_lock);
count = 0;
for (mp = TAILQ_FIRST(&mountlist); mp != NULL; mp = nmp) {
if (vfs_busy(mp, &nmp)) {
continue;
}
if (sfsp && count < maxcount) {
sp = &mp->mnt_stat;
/*
* If MNT_NOWAIT or MNT_LAZY is specified, do not
* refresh the fsstat cache. MNT_WAIT or MNT_LAZY
* overrides MNT_NOWAIT.
*/
if (SCARG(uap, flags) != MNT_NOWAIT &&
SCARG(uap, flags) != MNT_LAZY &&
(SCARG(uap, flags) == MNT_WAIT ||
SCARG(uap, flags) == 0) &&
(error = VFS_STATVFS(mp, sp)) != 0) {
mutex_enter(&mountlist_lock);
vfs_unbusy(mp, false, &nmp);
continue;
}
sp->f_flag = mp->mnt_flag & MNT_VISFLAGMASK;
compat_20_netbsd32_from_statvfs(sp, &sb32);
error = copyout(&sb32, sfsp, sizeof(sb32));
if (error) {
vfs_unbusy(mp, false, NULL);
return (error);
}
sfsp = (char *)sfsp + sizeof(sb32);
}
count++;
mutex_enter(&mountlist_lock);
vfs_unbusy(mp, false, &nmp);
}
mutex_exit(&mountlist_lock);
if (sfsp && count > maxcount)
*retval = maxcount;
else
*retval = count;
return (0);
}
/*
* Called by main() when ufs is going to be mounted as root.
*/
ffs_mountroot()
{
extern struct vnode *rootvp;
struct fs *fs;
struct mount *mp;
struct proc *p = current_proc(); /* XXX */
struct ufsmount *ump;
u_int size;
int error;
/*
* Get vnode for rootdev.
*/
if (error = bdevvp(rootdev, &rootvp)) {
printf("ffs_mountroot: can't setup bdevvp");
return (error);
}
if (error = vfs_rootmountalloc("ufs", "root_device", &mp)) {
vrele(rootvp); /* release the reference from bdevvp() */
return (error);
}
/* Must set the MNT_ROOTFS flag before doing the actual mount */
mp->mnt_flag |= MNT_ROOTFS;
/* Set asynchronous flag by default */
mp->mnt_flag |= MNT_ASYNC;
if (error = ffs_mountfs(rootvp, mp, p)) {
mp->mnt_vfc->vfc_refcount--;
if (mp->mnt_kern_flag & MNTK_IO_XINFO)
FREE(mp->mnt_xinfo_ptr, M_TEMP);
vfs_unbusy(mp, p);
vrele(rootvp); /* release the reference from bdevvp() */
FREE_ZONE(mp, sizeof (struct mount), M_MOUNT);
return (error);
}
simple_lock(&mountlist_slock);
CIRCLEQ_INSERT_TAIL(&mountlist, mp, mnt_list);
simple_unlock(&mountlist_slock);
ump = VFSTOUFS(mp);
fs = ump->um_fs;
(void) copystr(mp->mnt_stat.f_mntonname, fs->fs_fsmnt, MNAMELEN - 1, 0);
(void)ffs_statfs(mp, &mp->mnt_stat, p);
vfs_unbusy(mp, p);
inittodr(fs->fs_time);
return (0);
}
static OSKIT_COMDECL filesystem_sync(oskit_filesystem_t *f,
oskit_bool_t wait)
{
struct gfilesystem *fs = (struct gfilesystem *) f;
struct mount *mp;
struct proc *p;
oskit_error_t ferror;
int error, asyncflag;
if (!fs || !fs->count || !fs->mp)
return OSKIT_E_INVALIDARG;
ferror = getproc(&p);
if (ferror)
return ferror;
mp = fs->mp;
error = 0;
if ((mp->mnt_flag & (MNT_MLOCK|MNT_RDONLY|MNT_MPBUSY)) == 0 &&
!vfs_busy(mp)) {
asyncflag = mp->mnt_flag & MNT_ASYNC;
mp->mnt_flag &= ~MNT_ASYNC;
error = VFS_SYNC(mp, wait ? MNT_WAIT : MNT_NOWAIT, p->p_ucred, p);
if (asyncflag)
mp->mnt_flag |= MNT_ASYNC;
vfs_unbusy(mp);
}
prfree(p);
if (error)
return errno_to_oskit_error(error);
return 0;
}
/*
* Do operations associated with quotas
*/
int
ulfs_quotactl(struct mount *mp, struct quotactl_args *args)
{
#if !defined(LFS_QUOTA) && !defined(LFS_QUOTA2)
(void) mp;
(void) args;
return (EOPNOTSUPP);
#else
struct lwp *l = curlwp;
int error;
/* Mark the mount busy, as we're passing it to kauth(9). */
error = vfs_busy(mp, NULL);
if (error) {
return (error);
}
mutex_enter(&mp->mnt_updating);
error = lfsquota_handle_cmd(mp, l, args);
mutex_exit(&mp->mnt_updating);
vfs_unbusy(mp, false, NULL);
return (error);
#endif
}
static int
vfs_getrealpath(const char * path, char * realpath, size_t bufsize, vfs_context_t ctx)
{
vnode_t vp;
struct mount *mp = NULL;
char *str;
char ch;
uint32_t id;
ino64_t ino;
int error;
int length;
/* Get file system id and move str to next component. */
id = strtoul(path, &str, 10);
if (id == 0 || str[0] != '/') {
return (EINVAL);
}
while (*str == '/') {
str++;
}
ch = *str;
mp = mount_lookupby_volfsid(id, 1);
if (mp == NULL) {
return (EINVAL); /* unexpected failure */
}
/* Check for an alias to a file system root. */
if (ch == '@' && str[1] == '\0') {
ino = 2;
str++;
} else {
/* Get file id and move str to next component. */
ino = strtouq(str, &str, 10);
}
/* Get the target vnode. */
if (ino == 2) {
error = VFS_ROOT(mp, &vp, ctx);
} else {
error = VFS_VGET(mp, ino, &vp, ctx);
}
vfs_unbusy(mp);
if (error) {
goto out;
}
realpath[0] = '\0';
/* Get the absolute path to this vnode. */
error = build_path(vp, realpath, bufsize, &length, 0, ctx);
vnode_put(vp);
if (error == 0 && *str != '\0') {
int attempt = strlcat(realpath, str, MAXPATHLEN);
if (attempt > MAXPATHLEN){
error = ENAMETOOLONG;
}
}
out:
return (error);
}
/*
* Do a lazy sync of the filesystem.
*/
int
sync_fsync(void *v)
{
struct vop_fsync_args *ap = v;
struct vnode *syncvp = ap->a_vp;
struct mount *mp = syncvp->v_mount;
int asyncflag;
/*
* We only need to do something if this is a lazy evaluation.
*/
if (ap->a_waitfor != MNT_LAZY)
return (0);
/*
* Move ourselves to the back of the sync list.
*/
vn_syncer_add_to_worklist(syncvp, syncdelay);
/*
* Walk the list of vnodes pushing all that are dirty and
* not already on the sync list.
*/
if (vfs_busy(mp, VB_READ|VB_NOWAIT) == 0) {
asyncflag = mp->mnt_flag & MNT_ASYNC;
mp->mnt_flag &= ~MNT_ASYNC;
VFS_SYNC(mp, MNT_LAZY, ap->a_cred, ap->a_p);
if (asyncflag)
mp->mnt_flag |= MNT_ASYNC;
vfs_unbusy(mp);
}
return (0);
}
static int
msdosfs_deget_dotdot(struct vnode *vp, u_long cluster, int blkoff,
struct vnode **rvp)
{
struct mount *mp;
struct msdosfsmount *pmp;
struct denode *rdp;
int ltype, error;
mp = vp->v_mount;
pmp = VFSTOMSDOSFS(mp);
ltype = VOP_ISLOCKED(vp);
KASSERT(ltype == LK_EXCLUSIVE || ltype == LK_SHARED,
("msdosfs_deget_dotdot: vp not locked"));
error = vfs_busy(mp, MBF_NOWAIT);
if (error != 0) {
vfs_ref(mp);
VOP_UNLOCK(vp, 0);
error = vfs_busy(mp, 0);
vn_lock(vp, ltype | LK_RETRY);
vfs_rel(mp);
if (error != 0)
return (ENOENT);
if (vp->v_iflag & VI_DOOMED) {
vfs_unbusy(mp);
return (ENOENT);
}
}
VOP_UNLOCK(vp, 0);
error = deget(pmp, cluster, blkoff, &rdp);
vfs_unbusy(mp);
if (error == 0)
*rvp = DETOV(rdp);
if (*rvp != vp)
vn_lock(vp, ltype | LK_RETRY);
if (vp->v_iflag & VI_DOOMED) {
if (error == 0) {
if (*rvp == vp)
vunref(*rvp);
else
vput(*rvp);
}
error = ENOENT;
}
return (error);
}
int
ffs_mountroot(void)
{
struct fs *fs;
struct mount *mp;
struct proc *p = curproc; /* XXX */
struct ufsmount *ump;
int error;
/*
* Get vnodes for swapdev and rootdev.
*/
swapdev_vp = NULL;
if ((error = bdevvp(swapdev, &swapdev_vp)) ||
(error = bdevvp(rootdev, &rootvp))) {
printf("ffs_mountroot: can't setup bdevvp's\n");
if (swapdev_vp)
vrele(swapdev_vp);
return (error);
}
if ((error = vfs_rootmountalloc("ffs", "root_device", &mp)) != 0) {
vrele(swapdev_vp);
vrele(rootvp);
return (error);
}
if ((error = ffs_mountfs(rootvp, mp, p)) != 0) {
mp->mnt_vfc->vfc_refcount--;
vfs_unbusy(mp);
free(mp, M_MOUNT);
vrele(swapdev_vp);
vrele(rootvp);
return (error);
}
CIRCLEQ_INSERT_TAIL(&mountlist, mp, mnt_list);
ump = VFSTOUFS(mp);
fs = ump->um_fs;
(void) copystr(mp->mnt_stat.f_mntonname, fs->fs_fsmnt, MNAMELEN - 1, 0);
(void)ffs_statfs(mp, &mp->mnt_stat, p);
vfs_unbusy(mp);
inittodr(fs->fs_time);
return (0);
}
int
mfs_mountroot(void)
{
struct fs *fs;
struct mount *mp;
struct lwp *l = curlwp; /* XXX */
struct ufsmount *ump;
struct mfsnode *mfsp;
int error = 0;
if ((error = vfs_rootmountalloc(MOUNT_MFS, "mfs_root", &mp))) {
vrele(rootvp);
return (error);
}
mfsp = kmem_alloc(sizeof(*mfsp), KM_SLEEP);
rootvp->v_data = mfsp;
rootvp->v_op = mfs_vnodeop_p;
rootvp->v_tag = VT_MFS;
mfsp->mfs_baseoff = mfs_rootbase;
mfsp->mfs_size = mfs_rootsize;
mfsp->mfs_vnode = rootvp;
mfsp->mfs_proc = NULL; /* indicate kernel space */
mfsp->mfs_shutdown = 0;
cv_init(&mfsp->mfs_cv, "mfs");
mfsp->mfs_refcnt = 1;
bufq_alloc(&mfsp->mfs_buflist, "fcfs", 0);
if ((error = ffs_mountfs(rootvp, mp, l)) != 0) {
vfs_unbusy(mp, false, NULL);
bufq_free(mfsp->mfs_buflist);
vfs_destroy(mp);
kmem_free(mfsp, sizeof(*mfsp));
return (error);
}
mutex_enter(&mountlist_lock);
CIRCLEQ_INSERT_TAIL(&mountlist, mp, mnt_list);
mutex_exit(&mountlist_lock);
mp->mnt_vnodecovered = NULLVP;
ump = VFSTOUFS(mp);
fs = ump->um_fs;
(void) copystr(mp->mnt_stat.f_mntonname, fs->fs_fsmnt, MNAMELEN - 1, 0);
(void)ffs_statvfs(mp, &mp->mnt_stat);
vfs_unbusy(mp, false, NULL);
return (0);
}
__private_extern__
int
fuse_internal_remove(vnode_t dvp,
vnode_t vp,
struct componentname *cnp,
enum fuse_opcode op,
vfs_context_t context)
{
struct fuse_dispatcher fdi;
struct vnode_attr *vap = VTOVA(vp);
int need_invalidate = 0;
uint64_t target_nlink = 0;
mount_t mp = vnode_mount(vp);
int err = 0;
fdisp_init(&fdi, cnp->cn_namelen + 1);
fdisp_make_vp(&fdi, op, dvp, context);
memcpy(fdi.indata, cnp->cn_nameptr, cnp->cn_namelen);
((char *)fdi.indata)[cnp->cn_namelen] = '\0';
if ((vap->va_nlink > 1) && vnode_isreg(vp)) {
need_invalidate = 1;
target_nlink = vap->va_nlink;
}
if (!(err = fdisp_wait_answ(&fdi))) {
fuse_ticket_drop(fdi.tick);
}
fuse_invalidate_attr(dvp);
fuse_invalidate_attr(vp);
/*
* XXX: M_MACFUSE_INVALIDATE_CACHED_VATTRS_UPON_UNLINK
*
* Consider the case where vap->va_nlink > 1 for the entity being
* removed. In our world, other in-memory vnodes that share a link
* count each with this one may not know right way that this one just
* got deleted. We should let them know, say, through a vnode_iterate()
* here and a callback that does fuse_invalidate_attr(vp) on each
* relevant vnode.
*/
if (need_invalidate && !err) {
if (!vfs_busy(mp, LK_NOWAIT)) {
vnode_iterate(mp, 0, fuse_internal_remove_callback,
(void *)&target_nlink);
vfs_unbusy(mp);
} else {
IOLog("MacFUSE: skipping link count fixup upon remove\n");
}
}
return err;
}
int
mfs_mountroot(void)
{
struct fs *fs;
struct mount *mp;
struct proc *p = curproc;
struct ufsmount *ump;
struct mfsnode *mfsp;
int error;
if ((error = bdevvp(swapdev, &swapdev_vp)) ||
(error = bdevvp(rootdev, &rootvp))) {
printf("mfs_mountroot: can't setup bdevvp's");
return (error);
}
if ((error = vfs_rootmountalloc("mfs", "mfs_root", &mp)) != 0)
return (error);
mfsp = malloc(sizeof *mfsp, M_MFSNODE, M_WAITOK);
rootvp->v_data = mfsp;
rootvp->v_op = mfs_vnodeop_p;
rootvp->v_tag = VT_MFS;
mfsp->mfs_baseoff = mfs_rootbase;
mfsp->mfs_size = mfs_rootsize;
mfsp->mfs_vnode = rootvp;
mfsp->mfs_pid = p->p_pid;
mfsp->mfs_buflist = (struct buf *)0;
if ((error = ffs_mountfs(rootvp, mp, p)) != 0) {
mp->mnt_vfc->vfc_refcount--;
vfs_unbusy(mp);
free(mp, M_MOUNT);
free(mfsp, M_MFSNODE);
return (error);
}
CIRCLEQ_INSERT_TAIL(&mountlist, mp, mnt_list);
ump = VFSTOUFS(mp);
fs = ump->um_fs;
(void) copystr(mp->mnt_stat.f_mntonname, fs->fs_fsmnt, MNAMELEN - 1, 0);
(void)ffs_statfs(mp, &mp->mnt_stat, p);
vfs_unbusy(mp);
inittodr((time_t)0);
return (0);
}
int
procfs_domounts(struct lwp *curl, struct proc *p,
struct pfsnode *pfs, struct uio *uio)
{
char *bf, *mtab = NULL;
const char *fsname;
size_t len, mtabsz = 0;
struct mount *mp, *nmp;
struct statvfs *sfs;
int error = 0;
bf = malloc(LBFSZ, M_TEMP, M_WAITOK);
mutex_enter(&mountlist_lock);
for (mp = CIRCLEQ_FIRST(&mountlist); mp != (void *)&mountlist;
mp = nmp) {
if (vfs_busy(mp, &nmp)) {
continue;
}
sfs = &mp->mnt_stat;
/* Linux uses different names for some filesystems */
fsname = sfs->f_fstypename;
if (strcmp(fsname, "procfs") == 0)
fsname = "proc";
else if (strcmp(fsname, "ext2fs") == 0)
fsname = "ext2";
len = snprintf(bf, LBFSZ, "%s %s %s %s%s%s%s%s%s 0 0\n",
sfs->f_mntfromname,
sfs->f_mntonname,
fsname,
(mp->mnt_flag & MNT_RDONLY) ? "ro" : "rw",
(mp->mnt_flag & MNT_NOSUID) ? ",nosuid" : "",
(mp->mnt_flag & MNT_NOEXEC) ? ",noexec" : "",
(mp->mnt_flag & MNT_NODEV) ? ",nodev" : "",
(mp->mnt_flag & MNT_SYNCHRONOUS) ? ",sync" : "",
(mp->mnt_flag & MNT_NOATIME) ? ",noatime" : ""
);
mtab = realloc(mtab, mtabsz + len, M_TEMP, M_WAITOK);
memcpy(mtab + mtabsz, bf, len);
mtabsz += len;
vfs_unbusy(mp, false, &nmp);
}
mutex_exit(&mountlist_lock);
free(bf, M_TEMP);
if (mtabsz > 0) {
error = uiomove_frombuf(mtab, mtabsz, uio);
free(mtab, M_TEMP);
}
return error;
}
int
ext2fs_mountroot(void)
{
struct m_ext2fs *fs;
struct mount *mp;
struct proc *p = curproc; /* XXX */
struct ufsmount *ump;
int error;
/*
* Get vnodes for swapdev and rootdev.
*/
if (bdevvp(swapdev, &swapdev_vp) || bdevvp(rootdev, &rootvp))
panic("ext2fs_mountroot: can't setup bdevvp's");
if ((error = vfs_rootmountalloc("ext2fs", "root_device", &mp)) != 0) {
vrele(rootvp);
return (error);
}
if ((error = ext2fs_mountfs(rootvp, mp, p)) != 0) {
mp->mnt_vfc->vfc_refcount--;
vfs_unbusy(mp);
free(mp, M_MOUNT);
vrele(rootvp);
return (error);
}
TAILQ_INSERT_TAIL(&mountlist, mp, mnt_list);
ump = VFSTOUFS(mp);
fs = ump->um_e2fs;
memset(fs->e2fs_fsmnt, 0, sizeof(fs->e2fs_fsmnt));
strlcpy(fs->e2fs_fsmnt, mp->mnt_stat.f_mntonname, sizeof(fs->e2fs_fsmnt));
if (fs->e2fs.e2fs_rev > E2FS_REV0) {
memset(fs->e2fs.e2fs_fsmnt, 0, sizeof(fs->e2fs.e2fs_fsmnt));
strlcpy(fs->e2fs.e2fs_fsmnt, mp->mnt_stat.f_mntonname,
sizeof(fs->e2fs.e2fs_fsmnt));
}
(void)ext2fs_statfs(mp, &mp->mnt_stat, p);
vfs_unbusy(mp);
inittodr(fs->e2fs.e2fs_wtime);
return (0);
}
int
msdosfs_mountroot(void)
{
struct mount *mp;
struct lwp *l = curlwp; /* XXX */
int error;
struct msdosfs_args args;
if (device_class(root_device) != DV_DISK)
return (ENODEV);
if ((error = vfs_rootmountalloc(MOUNT_MSDOS, "root_device", &mp))) {
vrele(rootvp);
return (error);
}
args.flags = MSDOSFSMNT_VERSIONED;
args.uid = 0;
args.gid = 0;
args.mask = 0777;
args.version = MSDOSFSMNT_VERSION;
args.dirmask = 0777;
if ((error = msdosfs_mountfs(rootvp, mp, l, &args)) != 0) {
vfs_unbusy(mp, false, NULL);
vfs_destroy(mp);
return (error);
}
if ((error = update_mp(mp, &args)) != 0) {
(void)msdosfs_unmount(mp, 0);
vfs_unbusy(mp, false, NULL);
vfs_destroy(mp);
vrele(rootvp);
return (error);
}
mountlist_append(mp);
(void)msdosfs_statvfs(mp, &mp->mnt_stat);
vfs_unbusy(mp, false, NULL);
return (0);
}
int
ext2fs_mountroot(void)
{
// printf("ext2fs_mountroot\n");
extern struct vnode *rootvp;
struct m_ext2fs *fs;
struct mount *mp;
struct ufsmount *ump;
int error;
if (device_class(root_device) != DV_DISK)
return (ENODEV);
if ((error = vfs_rootmountalloc(MOUNT_EXT2FS, "root_device", &mp))) {
vrele(rootvp);
return (error);
}
if ((error = ext2fs_mountfs(rootvp, mp)) != 0) {
vfs_unbusy(mp, false, NULL);
vfs_destroy(mp);
return (error);
}
mountlist_append(mp);
ump = VFSTOUFS(mp);
fs = ump->um_e2fs;
memset(fs->e2fs_fsmnt, 0, sizeof(fs->e2fs_fsmnt));
(void) copystr(mp->mnt_stat.f_mntonname, fs->e2fs_fsmnt,
sizeof(fs->e2fs_fsmnt) - 1, 0);
if (fs->e2fs.e2fs_rev > E2FS_REV0) {
memset(fs->e2fs.e2fs_fsmnt, 0, sizeof(fs->e2fs.e2fs_fsmnt));
(void) copystr(mp->mnt_stat.f_mntonname, fs->e2fs.e2fs_fsmnt,
sizeof(fs->e2fs.e2fs_fsmnt) - 1, 0);
}
(void)ext2fs_statvfs(mp, &mp->mnt_stat);
vfs_unbusy(mp, false, NULL);
setrootfstime((time_t)fs->e2fs.e2fs_wtime);
return (0);
}
int
#define struct
ext2fs_mountroot(struct mount *mp)
{
struct vnode *rootvp;
#undef struct
struct m_ext2fs *fs;
// struct mount *mp;
int error;
DEBUG ((EFI_D_INFO, "mountroot 1\n"));
if (device_class(root_device) != DV_DISK)
return (ENONDEV);
DEBUG ((EFI_D_INFO, "mountroot 2\n"));
if ((error = vfs_rootmountalloc(MOUNT_EXT2FS, "root_device", &mp))) {
vrele(rootvp);
return (error);
}
DEBUG ((EFI_D_INFO, "mountroot 3\n"));
if ((error = ext2fs_mountfs(rootvp, mp)) != 0) {
vfs_unbusy(mp,false,NULL);
vfs_destroy(mp);
return (error);
}
DEBUG ((EFI_D_INFO, "mountroot 4\n"));
fs = mp->fs;
memset(fs->e2fs_fsmnt, 0, sizeof(fs->e2fs_fsmnt));
(void) copystr(mp->f_mntonname, fs->e2fs_fsmnt,
sizeof(fs->e2fs_fsmnt) - 1, 0);
if (fs->e2fs.e2fs_rev > E2FS_REV0) {
memset(fs->e2fs.e2fs_fsmnt, 0, sizeof(fs->e2fs.e2fs_fsmnt));
(void) copystr(mp->f_mntonname, fs->e2fs.e2fs_fsmnt,
sizeof(fs->e2fs.e2fs_fsmnt) - 1, 0);
}
vfs_unbusy(mp, false, NULL);
return (0);
int
traverse(vnode_t **cvpp, int lktype)
{
vnode_t *cvp;
vnode_t *tvp;
vfs_t *vfsp;
int error;
cvp = *cvpp;
tvp = NULL;
/*
* If this vnode is mounted on, then we transparently indirect
* to the vnode which is the root of the mounted file system.
* Before we do this we must check that an unmount is not in
* progress on this vnode.
*/
for (;;) {
/*
* Reached the end of the mount chain?
*/
vfsp = vn_mountedvfs(cvp);
if (vfsp == NULL)
break;
error = vfs_busy(vfsp, 0);
/*
* tvp is NULL for *cvpp vnode, which we can't unlock.
*/
if (tvp != NULL)
vput(cvp);
else
vrele(cvp);
if (error)
return (error);
/*
* The read lock must be held across the call to VFS_ROOT() to
* prevent a concurrent unmount from destroying the vfs.
*/
error = VFS_ROOT(vfsp, lktype, &tvp);
vfs_unbusy(vfsp);
if (error != 0)
return (error);
cvp = tvp;
}
*cvpp = cvp;
return (0);
}
/*
* Do operations associated with quotas
*/
int
ufs_quotactl(struct mount *mp, prop_dictionary_t dict)
{
struct lwp *l = curlwp;
#if !defined(QUOTA) && !defined(QUOTA2)
(void) mp;
(void) dict;
(void) l;
return (EOPNOTSUPP);
#else
int error;
prop_dictionary_t cmddict;
prop_array_t commands;
prop_object_iterator_t iter;
/* Mark the mount busy, as we're passing it to kauth(9). */
error = vfs_busy(mp, NULL);
if (error)
return (error);
error = quota_get_cmds(dict, &commands);
if (error)
goto out_vfs;
iter = prop_array_iterator(commands);
if (iter == NULL) {
error = ENOMEM;
goto out_vfs;
}
mutex_enter(&mp->mnt_updating);
while ((cmddict = prop_object_iterator_next(iter)) != NULL) {
if (prop_object_type(cmddict) != PROP_TYPE_DICTIONARY)
continue;
error = quota_handle_cmd(mp, l, cmddict);
if (error)
break;
}
prop_object_iterator_release(iter);
mutex_exit(&mp->mnt_updating);
out_vfs:
vfs_unbusy(mp, false, NULL);
return (error);
#endif
}
int
procfs_domounts(struct lwp *curl, struct proc *p,
struct pfsnode *pfs, struct uio *uio)
{
char *bf, *mtab = NULL;
size_t mtabsz = 0;
struct mount *mp, *nmp;
int error = 0, root = 0;
struct cwdinfo *cwdi = curl->l_proc->p_cwdi;
bf = malloc(LBFSZ, M_TEMP, M_WAITOK);
mutex_enter(&mountlist_lock);
for (mp = TAILQ_FIRST(&mountlist); mp != NULL; mp = nmp) {
struct statvfs sfs;
if (vfs_busy(mp, &nmp))
continue;
if ((error = dostatvfs(mp, &sfs, curl, MNT_WAIT, 0)) == 0)
root |= procfs_format_sfs(&mtab, &mtabsz, bf, LBFSZ,
&sfs, curl, 0);
vfs_unbusy(mp, false, &nmp);
}
mutex_exit(&mountlist_lock);
/*
* If we are inside a chroot that is not itself a mount point,
* fake a root entry.
*/
if (!root && cwdi->cwdi_rdir)
(void)procfs_format_sfs(&mtab, &mtabsz, bf, LBFSZ,
&cwdi->cwdi_rdir->v_mount->mnt_stat, curl, 1);
free(bf, M_TEMP);
if (mtabsz > 0) {
error = uiomove_frombuf(mtab, mtabsz, uio);
free(mtab, M_TEMP);
}
return error;
}
int
vfs_getbyid(fsid_t *fsid, ino64_t ino, vnode_t *vpp, vfs_context_t ctx)
{
mount_t mp;
int error;
mp = mount_lookupby_volfsid(fsid->val[0], 1);
if (mp == NULL) {
return EINVAL;
}
/* Get the target vnode. */
if (ino == 2) {
error = VFS_ROOT(mp, vpp, ctx);
} else {
error = VFS_VGET(mp, ino, vpp, ctx);
}
vfs_unbusy(mp);
return error;
}
/*
* Do a lazy sync of the filesystem.
*
* sync_fsync { struct vnode *a_vp, int a_waitfor }
*/
static int
sync_fsync(struct vop_fsync_args *ap)
{
struct vnode *syncvp = ap->a_vp;
struct mount *mp = syncvp->v_mount;
int asyncflag;
/*
* We only need to do something if this is a lazy evaluation.
*/
if ((ap->a_waitfor & MNT_LAZY) == 0)
return (0);
/*
* Move ourselves to the back of the sync list.
*/
vn_syncer_add(syncvp, syncdelay);
/*
* Walk the list of vnodes pushing all that are dirty and
* not already on the sync list, and freeing vnodes which have
* no refs and whos VM objects are empty. vfs_msync() handles
* the VM issues and must be called whether the mount is readonly
* or not.
*/
if (vfs_busy(mp, LK_NOWAIT) != 0)
return (0);
if (mp->mnt_flag & MNT_RDONLY) {
vfs_msync(mp, MNT_NOWAIT);
} else {
asyncflag = mp->mnt_flag & MNT_ASYNC;
mp->mnt_flag &= ~MNT_ASYNC; /* ZZZ hack */
vfs_msync(mp, MNT_NOWAIT);
VFS_SYNC(mp, MNT_NOWAIT | MNT_LAZY);
if (asyncflag)
mp->mnt_flag |= MNT_ASYNC;
}
vfs_unbusy(mp);
return (0);
}
/*
* Resolve a mount point's glue ncp. This ncp connects creates the illusion
* of continuity in the namecache tree by connecting the ncp related to the
* vnode under the mount to the ncp related to the mount's root vnode.
*
* If no error occured a locked, ref'd ncp is stored in *ncpp.
*/
int
nlookup_mp(struct mount *mp, struct nchandle *nch)
{
struct vnode *vp;
int error;
error = 0;
cache_get(&mp->mnt_ncmountpt, nch);
if (nch->ncp->nc_flag & NCF_UNRESOLVED) {
while (vfs_busy(mp, 0))
;
error = VFS_ROOT(mp, &vp);
vfs_unbusy(mp);
if (error) {
cache_put(nch);
} else {
cache_setvp(nch, vp);
vput(vp);
}
}
return(error);
}
/*
* Internal version of mount system call for diskless setup.
* Separate function because we used to call it twice.
* (once for root and once for swap)
*/
static int
nfs_mount_diskless(struct nfs_dlmount *ndmntp, const char *mntname, struct mount **mpp, struct vnode **vpp, struct lwp *l)
/* mntname: mount point name */
{
struct mount *mp;
struct mbuf *m;
int error;
vfs_rootmountalloc(MOUNT_NFS, mntname, &mp);
mp->mnt_op = &nfs_vfsops;
/*
* Historical practice expects NFS root file systems to
* be initially mounted r/w.
*/
mp->mnt_flag &= ~MNT_RDONLY;
/* Get mbuf for server sockaddr. */
m = m_get(M_WAIT, MT_SONAME);
if (m == NULL)
panic("nfs_mountroot: mget soname for %s", mntname);
MCLAIM(m, &nfs_mowner);
memcpy(mtod(m, void *), (void *)ndmntp->ndm_args.addr,
(m->m_len = ndmntp->ndm_args.addr->sa_len));
error = mountnfs(&ndmntp->ndm_args, mp, m, mntname,
ndmntp->ndm_args.hostname, vpp, l);
if (error) {
vfs_unbusy(mp, false, NULL);
vfs_destroy(mp);
printf("nfs_mountroot: mount %s failed: %d\n",
mntname, error);
} else
*mpp = mp;
return (error);
}
/*
* sys_lfs_segclean:
*
* Mark the segment clean.
*
* 0 on success
* -1/errno is return on error.
*/
int
sys_lfs_segclean(struct lwp *l, const struct sys_lfs_segclean_args *uap, register_t *retval)
{
/* {
syscallarg(fsid_t *) fsidp;
syscallarg(u_long) segment;
} */
struct lfs *fs;
struct mount *mntp;
fsid_t fsid;
int error;
unsigned long segnum;
error = kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_LFS,
KAUTH_REQ_SYSTEM_LFS_SEGCLEAN, NULL, NULL, NULL);
if (error)
return (error);
if ((error = copyin(SCARG(uap, fsidp), &fsid, sizeof(fsid_t))) != 0)
return (error);
if ((mntp = vfs_getvfs(&fsid)) == NULL)
return (ENOENT);
fs = VFSTOULFS(mntp)->um_lfs;
segnum = SCARG(uap, segment);
if ((error = vfs_busy(mntp, NULL)) != 0)
return (error);
KERNEL_LOCK(1, NULL);
lfs_seglock(fs, SEGM_PROT);
error = lfs_do_segclean(fs, segnum);
lfs_segunlock(fs);
KERNEL_UNLOCK_ONE(NULL);
vfs_unbusy(mntp, false, NULL);
return error;
}
