/*ARGSUSED*/
static int
ntfs_fhtovp(
struct mount *mp,
struct fid *fhp,
struct vnode **vpp)
{
struct ntfid ntfh;
int error;
if (fhp->fid_len != sizeof(struct ntfid))
return EINVAL;
memcpy(&ntfh, fhp, sizeof(ntfh));
ddprintf(("ntfs_fhtovp(): %s: %llu\n", mp->mnt_stat.f_mntonname,
(unsigned long long)ntfh.ntfid_ino));
error = ntfs_vgetex(mp, ntfh.ntfid_ino, ntfh.ntfid_attr, NULL,
LK_EXCLUSIVE, 0, vpp);
if (error != 0) {
*vpp = NULLVP;
return (error);
}
/* XXX as unlink/rmdir/mkdir/creat are not currently possible
* with NTFS, we don't need to check anything else for now */
return (0);
}
static int
ntfs_vget(
struct mount *mp,
ino_t ino,
struct vnode **vpp)
{
return ntfs_vgetex(mp, ino, NTFS_A_DATA, NULL, LK_EXCLUSIVE, 0, vpp);
}
static int
ntfs_vget(struct mount *mp, struct vnode *dvp, ino_t ino, struct vnode **vpp)
{
return ntfs_vgetex(mp, ino, NTFS_A_DATA, NULL,
LK_EXCLUSIVE | LK_RETRY, 0, curthread, vpp);
}
int
ntfs_lookup(void *v)
{
struct vop_lookup_v2_args /* {
struct vnode *a_dvp;
struct vnode **a_vpp;
struct componentname *a_cnp;
} */ *ap = v;
struct vnode *dvp = ap->a_dvp;
struct ntnode *dip = VTONT(dvp);
struct ntfsmount *ntmp = dip->i_mp;
struct componentname *cnp = ap->a_cnp;
kauth_cred_t cred = cnp->cn_cred;
int error;
dprintf(("ntfs_lookup: \"%.*s\" (%lld bytes) in %llu\n",
(int)cnp->cn_namelen, cnp->cn_nameptr, (long long)cnp->cn_namelen,
(unsigned long long)dip->i_number));
error = VOP_ACCESS(dvp, VEXEC, cred);
if(error)
return (error);
if ((cnp->cn_flags & ISLASTCN) &&
(dvp->v_mount->mnt_flag & MNT_RDONLY) &&
(cnp->cn_nameiop == DELETE || cnp->cn_nameiop == RENAME))
return (EROFS);
/*
* We now have a segment name to search for, and a directory
* to search.
*
* Before tediously performing a linear scan of the directory,
* check the name cache to see if the directory/name pair
* we are looking for is known already.
*/
if (cache_lookup(ap->a_dvp, cnp->cn_nameptr, cnp->cn_namelen,
cnp->cn_nameiop, cnp->cn_flags, NULL, ap->a_vpp)) {
return *ap->a_vpp == NULLVP ? ENOENT : 0;
}
if(cnp->cn_namelen == 1 && cnp->cn_nameptr[0] == '.') {
dprintf(("ntfs_lookup: faking . directory in %llu\n",
(unsigned long long)dip->i_number));
vref(dvp);
*ap->a_vpp = dvp;
error = 0;
} else if (cnp->cn_flags & ISDOTDOT) {
struct ntvattr *vap;
dprintf(("ntfs_lookup: faking .. directory in %llu\n",
(unsigned long long)dip->i_number));
error = ntfs_ntvattrget(ntmp, dip, NTFS_A_NAME, NULL, 0, &vap);
if (error) {
return (error);
}
dprintf(("ntfs_lookup: parentdir: %d\n",
vap->va_a_name->n_pnumber));
error = ntfs_vgetex(ntmp->ntm_mountp,
vap->va_a_name->n_pnumber,
NTFS_A_DATA, "", 0, ap->a_vpp);
ntfs_ntvattrrele(vap);
if (error) {
return (error);
}
} else {
error = ntfs_ntlookupfile(ntmp, dvp, cnp, ap->a_vpp);
if (error) {
dprintf(("ntfs_ntlookupfile: returned %d\n", error));
return (error);
}
dprintf(("ntfs_lookup: found ino: %llu\n",
(unsigned long long)VTONT(*ap->a_vpp)->i_number));
}
cache_enter(dvp, *ap->a_vpp, cnp->cn_nameptr, cnp->cn_namelen,
cnp->cn_flags);
return error;
}
