예제 #1
0
파일: devfs_vnops.c 프로젝트: 0xffea/xnu
/* Called with devfs locked */
int
devfs_make_symlink(devnode_t *dir_p, char *name, int mode, char *target, devdirent_t **newent)
{
	int error = 0;
	devnode_type_t typeinfo;
	devdirent_t * nm_p;
	devnode_t * dev_p;

	typeinfo.Slnk.name = target;
	typeinfo.Slnk.namelen = strlen(target);

	error = dev_add_entry(name, dir_p, DEV_SLNK, 
			      &typeinfo, NULL, NULL, &nm_p);
	if (error) {
	    goto failure;
	}
	dev_p = nm_p->de_dnp;
	dev_p->dn_uid = dir_p->dn_uid;
	dev_p->dn_gid = dir_p->dn_gid;
	dev_p->dn_mode = mode;
	dn_copy_times(dev_p, dir_p);

	if (newent) {
		*newent = nm_p;
	}

failure:

	return error;
}
예제 #2
0
static int
devfs_symlink(struct vnop_symlink_args *ap)
        /*struct vnop_symlink_args {
                struct vnode *a_dvp;
                struct vnode **a_vpp;
                struct componentname *a_cnp;
                struct vnode_attr *a_vap;
                char *a_target;
		vfs_context_t a_context;
        } */
{
	struct componentname * cnp = ap->a_cnp;
	vfs_context_t ctx = cnp->cn_context;
	struct proc *p = vfs_context_proc(ctx);
	int error = 0;
	devnode_t * dir_p;
	devnode_type_t typeinfo;
	devdirent_t * nm_p;
	devnode_t * dev_p;
	struct vnode_attr *	vap = ap->a_vap;
	struct vnode * * vpp = ap->a_vpp;

	typeinfo.Slnk.name = ap->a_target;
	typeinfo.Slnk.namelen = strlen(ap->a_target);

	DEVFS_LOCK();

	dir_p = VTODN(ap->a_dvp);

	error = dev_add_entry(cnp->cn_nameptr, dir_p, DEV_SLNK, 
			      &typeinfo, NULL, NULL, &nm_p);
	if (error) {
	    goto failure;
	}
	dev_p = nm_p->de_dnp;
	dev_p->dn_uid = dir_p->dn_uid;
	dev_p->dn_gid = dir_p->dn_gid;
	dev_p->dn_mode = vap->va_mode;
	dn_copy_times(dev_p, dir_p);

	error = devfs_dntovn(dev_p, vpp, p);
failure:
	DEVFS_UNLOCK();

	return error;
}
예제 #3
0
static int
devfs_mkdir(struct vnop_mkdir_args *ap)
        /*struct vnop_mkdir_args {
                struct vnode *a_dvp;
                struct vnode **a_vpp;
                struct componentname *a_cnp;
                struct vnode_attr *a_vap;
		vfs_context_t a_context;
        } */
{
	struct componentname * cnp = ap->a_cnp;
	vfs_context_t ctx = cnp->cn_context;
	struct proc *p = vfs_context_proc(ctx);
	int error = 0;
	devnode_t * dir_p;
	devdirent_t * nm_p;
	devnode_t * dev_p;
	struct vnode_attr *	vap = ap->a_vap;
	struct vnode * * vpp = ap->a_vpp;

	DEVFS_LOCK();

	dir_p = VTODN(ap->a_dvp);
	error = dev_add_entry(cnp->cn_nameptr, dir_p, DEV_DIR, 
			      NULL, NULL, NULL, &nm_p);
	if (error) {
	    goto failure;
	}
	dev_p = nm_p->de_dnp;
	dev_p->dn_uid = dir_p->dn_uid;
	dev_p->dn_gid = dir_p->dn_gid;
	dev_p->dn_mode = vap->va_mode;
	dn_copy_times(dev_p, dir_p);

	error = devfs_dntovn(dev_p, vpp, p);
failure:
	DEVFS_UNLOCK();

	return error;
}