int
fuse_internal_newentry_core(struct vnode *dvp,
struct vnode **vpp,
struct componentname *cnp,
enum vtype vtyp,
struct fuse_dispatcher *fdip)
{
int err = 0;
struct fuse_entry_out *feo;
struct mount *mp = vnode_mount(dvp);
if ((err = fdisp_wait_answ(fdip))) {
return err;
}
feo = fdip->answ;
if ((err = fuse_internal_checkentry(feo, vtyp))) {
return err;
}
err = fuse_vnode_get(mp, feo->nodeid, dvp, vpp, cnp, vtyp);
if (err) {
fuse_internal_forget_send(mp, cnp->cn_thread, cnp->cn_cred,
feo->nodeid, 1);
return err;
}
cache_attrs(*vpp, feo);
return err;
}
/*
struct vnop_link_args {
struct vnode *a_tdvp;
struct vnode *a_vp;
struct componentname *a_cnp;
};
*/
static int
fuse_vnop_link(struct vop_link_args *ap)
{
struct vnode *vp = ap->a_vp;
struct vnode *tdvp = ap->a_tdvp;
struct componentname *cnp = ap->a_cnp;
struct vattr *vap = VTOVA(vp);
struct fuse_dispatcher fdi;
struct fuse_entry_out *feo;
struct fuse_link_in fli;
int err;
fuse_trace_printf_vnop();
if (fuse_isdeadfs(vp)) {
return ENXIO;
}
if (vnode_mount(tdvp) != vnode_mount(vp)) {
return EXDEV;
}
if (vap->va_nlink >= FUSE_LINK_MAX) {
return EMLINK;
}
fli.oldnodeid = VTOI(vp);
fdisp_init(&fdi, 0);
fuse_internal_newentry_makerequest(vnode_mount(tdvp), VTOI(tdvp), cnp,
FUSE_LINK, &fli, sizeof(fli), &fdi);
if ((err = fdisp_wait_answ(&fdi))) {
goto out;
}
feo = fdi.answ;
err = fuse_internal_checkentry(feo, vnode_vtype(vp));
fuse_invalidate_attr(tdvp);
fuse_invalidate_attr(vp);
out:
fdisp_destroy(&fdi);
return err;
}
__private_extern__
int
fuse_internal_newentry_core(vnode_t dvp,
vnode_t *vpp,
struct componentname *cnp,
enum vtype vtyp,
struct fuse_dispatcher *fdip,
vfs_context_t context)
{
int err = 0;
struct fuse_entry_out *feo;
mount_t mp = vnode_mount(dvp);
if ((err = fdisp_wait_answ(fdip))) {
return err;
}
feo = fdip->answ;
if ((err = fuse_internal_checkentry(feo, vtyp))) {
goto out;
}
err = fuse_vget_i(vpp, 0 /* flags */, feo, cnp, dvp, mp, context);
if (err) {
fuse_internal_forget_send(mp, context, feo->nodeid, 1, fdip);
return err;
}
cache_attrs(*vpp, feo);
out:
fuse_ticket_drop(fdip->tick);
return err;
}
/*
struct vnop_create_args {
struct vnode *a_dvp;
struct vnode **a_vpp;
struct componentname *a_cnp;
struct vattr *a_vap;
};
*/
static int
fuse_vnop_create(struct vop_create_args *ap)
{
struct vnode *dvp = ap->a_dvp;
struct vnode **vpp = ap->a_vpp;
struct componentname *cnp = ap->a_cnp;
struct vattr *vap = ap->a_vap;
struct thread *td = cnp->cn_thread;
struct ucred *cred = cnp->cn_cred;
struct fuse_open_in *foi;
struct fuse_entry_out *feo;
struct fuse_dispatcher fdi;
struct fuse_dispatcher *fdip = &fdi;
int err;
struct mount *mp = vnode_mount(dvp);
uint64_t parentnid = VTOFUD(dvp)->nid;
mode_t mode = MAKEIMODE(vap->va_type, vap->va_mode);
uint64_t x_fh_id;
uint32_t x_open_flags;
fuse_trace_printf_vnop();
if (fuse_isdeadfs(dvp)) {
return ENXIO;
}
bzero(&fdi, sizeof(fdi));
/* XXX: Will we ever want devices ? */
if ((vap->va_type != VREG)) {
MPASS(vap->va_type != VFIFO);
goto bringup;
}
debug_printf("parent nid = %ju, mode = %x\n", (uintmax_t)parentnid,
mode);
fdisp_init(fdip, sizeof(*foi) + cnp->cn_namelen + 1);
if (!fsess_isimpl(mp, FUSE_CREATE)) {
debug_printf("eh, daemon doesn't implement create?\n");
return (EINVAL);
}
fdisp_make(fdip, FUSE_CREATE, vnode_mount(dvp), parentnid, td, cred);
foi = fdip->indata;
foi->mode = mode;
foi->flags = O_CREAT | O_RDWR;
memcpy((char *)fdip->indata + sizeof(*foi), cnp->cn_nameptr,
cnp->cn_namelen);
((char *)fdip->indata)[sizeof(*foi) + cnp->cn_namelen] = '\0';
err = fdisp_wait_answ(fdip);
if (err) {
if (err == ENOSYS)
fsess_set_notimpl(mp, FUSE_CREATE);
debug_printf("create: got err=%d from daemon\n", err);
goto out;
}
bringup:
feo = fdip->answ;
if ((err = fuse_internal_checkentry(feo, VREG))) {
goto out;
}
err = fuse_vnode_get(mp, feo->nodeid, dvp, vpp, cnp, VREG);
if (err) {
struct fuse_release_in *fri;
uint64_t nodeid = feo->nodeid;
uint64_t fh_id = ((struct fuse_open_out *)(feo + 1))->fh;
fdisp_init(fdip, sizeof(*fri));
fdisp_make(fdip, FUSE_RELEASE, mp, nodeid, td, cred);
fri = fdip->indata;
fri->fh = fh_id;
fri->flags = OFLAGS(mode);
fuse_insert_callback(fdip->tick, fuse_internal_forget_callback);
fuse_insert_message(fdip->tick);
return err;
}
ASSERT_VOP_ELOCKED(*vpp, "fuse_vnop_create");
fdip->answ = feo + 1;
x_fh_id = ((struct fuse_open_out *)(feo + 1))->fh;
x_open_flags = ((struct fuse_open_out *)(feo + 1))->open_flags;
fuse_filehandle_init(*vpp, FUFH_RDWR, NULL, x_fh_id);
fuse_vnode_open(*vpp, x_open_flags, td);
cache_purge_negative(dvp);
out:
fdisp_destroy(fdip);
return err;
}
