/* 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;
}
/*
* Mknod vnode call
*/
static int
devfs_mknod(struct vnop_mknod_args *ap)
/* struct vnop_mknod_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);
devnode_t * dev_p;
devdirent_t * devent;
devnode_t * dir_p; /* devnode for parent directory */
struct vnode * dvp = ap->a_dvp;
int error = 0;
devnode_type_t typeinfo;
struct vnode_attr * vap = ap->a_vap;
struct vnode ** vpp = ap->a_vpp;
*vpp = NULL;
if (!(vap->va_type == VBLK) && !(vap->va_type == VCHR)) {
return (EINVAL); /* only support mknod of special files */
}
typeinfo.dev = vap->va_rdev;
DEVFS_LOCK();
dir_p = VTODN(dvp);
error = dev_add_entry(cnp->cn_nameptr, dir_p,
(vap->va_type == VBLK) ? DEV_BDEV : DEV_CDEV,
&typeinfo, NULL, NULL, &devent);
if (error) {
goto failure;
}
dev_p = devent->de_dnp;
error = devfs_dntovn(dev_p, vpp, p);
if (error)
goto failure;
dev_p->dn_uid = vap->va_uid;
dev_p->dn_gid = vap->va_gid;
dev_p->dn_mode = vap->va_mode;
VATTR_SET_SUPPORTED(vap, va_uid);
VATTR_SET_SUPPORTED(vap, va_gid);
VATTR_SET_SUPPORTED(vap, va_mode);
failure:
DEVFS_UNLOCK();
return (error);
}
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;
}
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;
}
