/*
* VOP_CREAT
*/
static
int
emufs_creat(struct vnode *dir, const char *name, bool excl, mode_t mode,
struct vnode **ret)
{
struct emufs_vnode *ev = dir->vn_data;
struct emufs_fs *ef = dir->vn_fs->fs_data;
struct emufs_vnode *newguy;
uint32_t handle;
int result;
int isdir;
result = emu_open(ev->ev_emu, ev->ev_handle, name, true, excl, mode,
&handle, &isdir);
if (result) {
return result;
}
result = emufs_loadvnode(ef, handle, isdir, &newguy);
if (result) {
emu_close(ev->ev_emu, handle);
return result;
}
*ret = &newguy->ev_v;
return 0;
}
/*
* VOP_LOOKUP
*/
static
int
emufs_lookup(struct vnode *dir, char *pathname, struct vnode **ret)
{
struct emufs_vnode *ev = dir->vn_data;
struct emufs_fs *ef = dir->vn_fs->fs_data;
struct emufs_vnode *newguy;
uint32_t handle;
int result;
int isdir;
result = emu_open(ev->ev_emu, ev->ev_handle, pathname, false, false, 0,
&handle, &isdir);
if (result) {
return result;
}
result = emufs_loadvnode(ef, handle, isdir, &newguy);
if (result) {
emu_close(ev->ev_emu, handle);
return result;
}
*ret = &newguy->ev_v;
return 0;
}
/*
* Routine for "mounting" an emufs - we're not really mounted in the
* sense that the VFS understands that term, because we're not
* connected to a block device.
*
* Basically, we just add ourselves to the name list in the VFS layer.
*/
static
int
emufs_addtovfs(struct emu_softc *sc, const char *devname)
{
struct emufs_fs *ef;
int result;
ef = kmalloc(sizeof(struct emufs_fs));
if (ef==NULL) {
return ENOMEM;
}
ef->ef_fs.fs_sync = emufs_sync;
ef->ef_fs.fs_getvolname = emufs_getvolname;
ef->ef_fs.fs_getroot = emufs_getroot;
ef->ef_fs.fs_unmount = emufs_unmount;
ef->ef_fs.fs_data = ef;
ef->ef_emu = sc;
ef->ef_root = NULL;
ef->ef_vnodes = vnodearray_create();
if (ef->ef_vnodes == NULL) {
kfree(ef);
return ENOMEM;
}
result = emufs_loadvnode(ef, EMU_ROOTHANDLE, 1, &ef->ef_root);
if (result) {
kfree(ef);
return result;
}
KASSERT(ef->ef_root!=NULL);
result = vfs_addfs(devname, &ef->ef_fs);
if (result) {
VOP_DECREF(&ef->ef_root->ev_v);
kfree(ef);
}
return result;
}
