/*ARGSUSED*/
int
ptyfs_setattr(void *v)
{
struct vop_setattr_args /* {
struct vnodeop_desc *a_desc;
struct vnode *a_vp;
struct vattr *a_vap;
kauth_cred_t a_cred;
} */ *ap = v;
struct vnode *vp = ap->a_vp;
struct ptyfsnode *ptyfs = VTOPTYFS(vp);
struct vattr *vap = ap->a_vap;
kauth_cred_t cred = ap->a_cred;
struct lwp *l = curlwp;
int error;
if (vap->va_size != VNOVAL) {
switch (ptyfs->ptyfs_type) {
case PTYFSroot:
return EISDIR;
case PTYFSpts:
case PTYFSptc:
break;
default:
return EINVAL;
}
}
if (vap->va_flags != VNOVAL) {
if (vp->v_mount->mnt_flag & MNT_RDONLY)
return EROFS;
if (kauth_cred_geteuid(cred) != ptyfs->ptyfs_uid &&
(error = kauth_authorize_generic(cred, KAUTH_GENERIC_ISSUSER,
NULL)) != 0)
return error;
/* Immutable and append-only flags are not supported on ptyfs. */
if (vap->va_flags & (IMMUTABLE | APPEND))
return EINVAL;
if (kauth_authorize_generic(cred, KAUTH_GENERIC_ISSUSER, NULL) == 0) {
/* Snapshot flag cannot be set or cleared */
if ((vap->va_flags & SF_SNAPSHOT) !=
(ptyfs->ptyfs_flags & SF_SNAPSHOT))
return EPERM;
ptyfs->ptyfs_flags = vap->va_flags;
} else {
if ((ptyfs->ptyfs_flags & SF_SETTABLE) !=
(vap->va_flags & SF_SETTABLE))
return EPERM;
ptyfs->ptyfs_flags &= SF_SETTABLE;
ptyfs->ptyfs_flags |= (vap->va_flags & UF_SETTABLE);
}
ptyfs->ptyfs_flag |= PTYFS_CHANGE;
}
/*
* Go through the fields and update iff not VNOVAL.
*/
if (vap->va_uid != (uid_t)VNOVAL || vap->va_gid != (gid_t)VNOVAL) {
if (vp->v_mount->mnt_flag & MNT_RDONLY)
return EROFS;
if (ptyfs->ptyfs_type == PTYFSroot)
return EPERM;
error = ptyfs_chown(vp, vap->va_uid, vap->va_gid, cred, l);
if (error)
return error;
}
if (vap->va_atime.tv_sec != VNOVAL || vap->va_mtime.tv_sec != VNOVAL ||
vap->va_birthtime.tv_sec != VNOVAL) {
if (vp->v_mount->mnt_flag & MNT_RDONLY)
return EROFS;
if ((ptyfs->ptyfs_flags & SF_SNAPSHOT) != 0)
return EPERM;
if (kauth_cred_geteuid(cred) != ptyfs->ptyfs_uid &&
(error = kauth_authorize_generic(cred, KAUTH_GENERIC_ISSUSER,
NULL)) &&
((vap->va_vaflags & VA_UTIMES_NULL) == 0 ||
(error = VOP_ACCESS(vp, VWRITE, cred)) != 0))
return (error);
if (vap->va_atime.tv_sec != VNOVAL)
if (!(vp->v_mount->mnt_flag & MNT_NOATIME))
ptyfs->ptyfs_flag |= PTYFS_ACCESS;
if (vap->va_mtime.tv_sec != VNOVAL)
ptyfs->ptyfs_flag |= PTYFS_CHANGE | PTYFS_MODIFY;
if (vap->va_birthtime.tv_sec != VNOVAL)
ptyfs->ptyfs_birthtime = vap->va_birthtime;
ptyfs->ptyfs_flag |= PTYFS_CHANGE;
error = ptyfs_update(vp, &vap->va_atime, &vap->va_mtime, 0);
if (error)
return error;
}
if (vap->va_mode != (mode_t)VNOVAL) {
if (vp->v_mount->mnt_flag & MNT_RDONLY)
return EROFS;
if (ptyfs->ptyfs_type == PTYFSroot)
return EPERM;
if ((ptyfs->ptyfs_flags & SF_SNAPSHOT) != 0 &&
(vap->va_mode &
(S_IXUSR|S_IWUSR|S_IXGRP|S_IWGRP|S_IXOTH|S_IWOTH)))
return EPERM;
error = ptyfs_chmod(vp, vap->va_mode, cred, l);
if (error)
return error;
}
VN_KNOTE(vp, NOTE_ATTRIB);
return 0;
}
/*ARGSUSED*/
int
ptyfs_setattr(void *v)
{
struct vop_setattr_args /* {
struct vnodeop_desc *a_desc;
struct vnode *a_vp;
struct vattr *a_vap;
kauth_cred_t a_cred;
} */ *ap = v;
struct vnode *vp = ap->a_vp;
struct ptyfsnode *ptyfs = VTOPTYFS(vp);
struct vattr *vap = ap->a_vap;
kauth_cred_t cred = ap->a_cred;
struct lwp *l = curlwp;
int error;
kauth_action_t action = KAUTH_VNODE_WRITE_FLAGS;
bool changing_sysflags = false;
if (vap->va_size != VNOVAL) {
switch (ptyfs->ptyfs_type) {
case PTYFSroot:
return EISDIR;
case PTYFSpts:
case PTYFSptc:
break;
default:
return EINVAL;
}
}
if (vap->va_flags != VNOVAL) {
if (vp->v_mount->mnt_flag & MNT_RDONLY)
return EROFS;
/* Immutable and append-only flags are not supported on ptyfs. */
if (vap->va_flags & (IMMUTABLE | APPEND))
return EINVAL;
/* Snapshot flag cannot be set or cleared */
if ((vap->va_flags & SF_SNAPSHOT) != (ptyfs->ptyfs_flags & SF_SNAPSHOT))
return EPERM;
if ((ptyfs->ptyfs_flags & SF_SETTABLE) != (vap->va_flags & SF_SETTABLE)) {
changing_sysflags = true;
action |= KAUTH_VNODE_WRITE_SYSFLAGS;
}
error = kauth_authorize_vnode(cred, action, vp, NULL,
genfs_can_chflags(cred, vp->v_type, ptyfs->ptyfs_uid,
changing_sysflags));
if (error)
return error;
if (changing_sysflags) {
ptyfs->ptyfs_flags = vap->va_flags;
} else {
ptyfs->ptyfs_flags &= SF_SETTABLE;
ptyfs->ptyfs_flags |= (vap->va_flags & UF_SETTABLE);
}
ptyfs->ptyfs_status |= PTYFS_CHANGE;
}
/*
* Go through the fields and update iff not VNOVAL.
*/
if (vap->va_uid != (uid_t)VNOVAL || vap->va_gid != (gid_t)VNOVAL) {
if (vp->v_mount->mnt_flag & MNT_RDONLY)
return EROFS;
if (ptyfs->ptyfs_type == PTYFSroot)
return EPERM;
error = ptyfs_chown(vp, vap->va_uid, vap->va_gid, cred, l);
if (error)
return error;
}
if (vap->va_atime.tv_sec != VNOVAL || vap->va_mtime.tv_sec != VNOVAL ||
vap->va_birthtime.tv_sec != VNOVAL) {
if (vp->v_mount->mnt_flag & MNT_RDONLY)
return EROFS;
if ((ptyfs->ptyfs_flags & SF_SNAPSHOT) != 0)
return EPERM;
error = kauth_authorize_vnode(cred, KAUTH_VNODE_WRITE_TIMES, vp,
NULL, genfs_can_chtimes(vp, vap->va_vaflags,
ptyfs->ptyfs_uid, cred));
if (error)
return (error);
if (vap->va_atime.tv_sec != VNOVAL)
if (!(vp->v_mount->mnt_flag & MNT_NOATIME))
ptyfs->ptyfs_status |= PTYFS_ACCESS;
if (vap->va_mtime.tv_sec != VNOVAL) {
ptyfs->ptyfs_status |= PTYFS_CHANGE | PTYFS_MODIFY;
if (vp->v_mount->mnt_flag & MNT_RELATIME)
ptyfs->ptyfs_status |= PTYFS_ACCESS;
}
if (vap->va_birthtime.tv_sec != VNOVAL)
ptyfs->ptyfs_birthtime = vap->va_birthtime;
ptyfs->ptyfs_status |= PTYFS_CHANGE;
error = ptyfs_update(vp, &vap->va_atime, &vap->va_mtime, 0);
if (error)
return error;
}
if (vap->va_mode != (mode_t)VNOVAL) {
if (vp->v_mount->mnt_flag & MNT_RDONLY)
return EROFS;
if (ptyfs->ptyfs_type == PTYFSroot)
return EPERM;
if ((ptyfs->ptyfs_flags & SF_SNAPSHOT) != 0 &&
(vap->va_mode &
(S_IXUSR|S_IWUSR|S_IXGRP|S_IWGRP|S_IXOTH|S_IWOTH)))
return EPERM;
error = ptyfs_chmod(vp, vap->va_mode, cred, l);
if (error)
return error;
}
VN_KNOTE(vp, NOTE_ATTRIB);
return 0;
}
