int
smbfs_writevnode(struct vnode *vp, struct uio *uiop,
struct ucred *cred, int ioflag)
{
struct smbmount *smp = VTOSMBFS(vp);
struct smbnode *np = VTOSMB(vp);
struct smb_cred *scred;
struct thread *td;
int error = 0;
if (vp->v_type != VREG) {
SMBERROR("vn types other than VREG unsupported !\n");
return EIO;
}
SMBVDEBUG("ofs=%jd,resid=%zd\n", (intmax_t)uiop->uio_offset,
uiop->uio_resid);
if (uiop->uio_offset < 0)
return EINVAL;
/* if (uiop->uio_offset + uiop->uio_resid > smp->nm_maxfilesize)
return (EFBIG);*/
td = uiop->uio_td;
if (ioflag & (IO_APPEND | IO_SYNC)) {
if (np->n_flag & NMODIFIED) {
smbfs_attr_cacheremove(vp);
error = smbfs_vinvalbuf(vp, td);
if (error)
return error;
}
if (ioflag & IO_APPEND) {
#ifdef notyet
/*
* File size can be changed by another client
*/
smbfs_attr_cacheremove(vp);
error = VOP_GETATTR(vp, &vattr, cred);
if (error) return (error);
#endif
uiop->uio_offset = np->n_size;
}
}
if (uiop->uio_resid == 0)
return 0;
if (vn_rlimit_fsize(vp, uiop, td))
return (EFBIG);
scred = smbfs_malloc_scred();
smb_makescred(scred, td, cred);
error = smb_write(smp->sm_share, np->n_fid, uiop, scred);
smbfs_free_scred(scred);
SMBVDEBUG("after: ofs=%jd,resid=%zd\n", (intmax_t)uiop->uio_offset,
uiop->uio_resid);
if (!error) {
if (uiop->uio_offset > np->n_size) {
np->n_size = uiop->uio_offset;
vnode_pager_setsize(vp, np->n_size);
}
}
return error;
}
int
smbfs_writevnode(struct vnode *vp, struct uio *uiop,
struct ucred *cred, int ioflag)
{
struct thread *td;
struct smbmount *smp = VTOSMBFS(vp);
struct smbnode *np = VTOSMB(vp);
struct smb_cred scred;
int error = 0;
if (vp->v_type != VREG) {
SMBERROR("vn types other than VREG unsupported !\n");
return EIO;
}
SMBVDEBUG("ofs=%d,resid=%d\n",(int)uiop->uio_offset, uiop->uio_resid);
if (uiop->uio_offset < 0)
return EINVAL;
td = uiop->uio_td;
if (ioflag & (IO_APPEND | IO_SYNC)) {
if (np->n_flag & NMODIFIED) {
smbfs_attr_cacheremove(vp);
error = smbfs_vinvalbuf(vp, V_SAVE, 1);
if (error)
return error;
}
if (ioflag & IO_APPEND) {
#if 0 /* notyet */
/*
* File size can be changed by another client
*/
smbfs_attr_cacheremove(vp);
error = VOP_GETATTR(vp, &vattr);
if (error) return (error);
#endif
uiop->uio_offset = np->n_size;
}
}
if (uiop->uio_resid == 0)
return 0;
if (td->td_proc &&
uiop->uio_offset + uiop->uio_resid >
td->td_proc->p_rlimit[RLIMIT_FSIZE].rlim_cur) {
lwpsignal(td->td_proc, td->td_lwp, SIGXFSZ);
return EFBIG;
}
smb_makescred(&scred, td, cred);
error = smb_write(smp->sm_share, np->n_fid, uiop, &scred);
SMBVDEBUG("after: ofs=%d,resid=%d\n",(int)uiop->uio_offset, uiop->uio_resid);
if (!error) {
if (uiop->uio_offset > np->n_size) {
np->n_size = uiop->uio_offset;
vnode_pager_setsize(vp, np->n_size);
}
}
return error;
}
int
smbfs_access(void *v)
{
struct vop_access_args /* {
struct vnode *a_vp;
int a_mode;
kauth_cred_t a_cred;
} */ *ap = v;
struct vnode *vp = ap->a_vp;
struct smbnode *np = VTOSMB(vp);
u_int acc_mode = ap->a_mode;
int error;
#ifdef SMB_VNODE_DEBUG
struct smbmount *smp = VTOSMBFS(vp);
#endif
SMBVDEBUG("file '%.*s', node mode=%o, acc mode=%x\n",
(int) np->n_nmlen, np->n_name,
(vp->v_type == VDIR) ? smp->sm_args.dir_mode : smp->sm_args.file_mode,
acc_mode);
error = smbfs_check_possible(vp, np, acc_mode);
if (error)
return error;
error = smbfs_check_permitted(vp, np, acc_mode, ap->a_cred);
return error;
}
/*ARGSUSED*/
int
smbfs_init(struct vfsconf *vfsp)
{
smbfs_pbuf_freecnt = nswbuf_kva / 2 + 1;
SMBVDEBUG("done.\n");
return 0;
}
/*ARGSUSED*/
int
smbfs_init(struct vfsconf *vfsp)
{
#ifdef SMBFS_USEZONE
smbfsmount_zone = zinit("SMBFSMOUNT", sizeof(struct smbmount), 0, 0, 1);
#endif
smbfs_pbuf_freecnt = nswbuf / 2 + 1;
SMBVDEBUG("done.\n");
return 0;
}
/* Unmount the filesystem described by mp. */
static int
smbfs_unmount(struct mount *mp, int mntflags)
{
struct thread *td;
struct smbmount *smp = VFSTOSMBFS(mp);
struct smb_cred *scred;
struct smb_dev *dev;
int error, flags;
SMBVDEBUG("smbfs_unmount: flags=%04x\n", mntflags);
td = curthread;
flags = 0;
if (mntflags & MNT_FORCE)
flags |= FORCECLOSE;
/*
* Keep trying to flush the vnode list for the mount while
* some are still busy and we are making progress towards
* making them not busy. This is needed because smbfs vnodes
* reference their parent directory but may appear after their
* parent in the list; one pass over the vnode list is not
* sufficient in this case.
*/
do {
smp->sm_didrele = 0;
/* There is 1 extra root vnode reference from smbfs_mount(). */
error = vflush(mp, 1, flags, td);
} while (error == EBUSY && smp->sm_didrele != 0);
if (error)
return error;
scred = smbfs_malloc_scred();
smb_makescred(scred, td, td->td_ucred);
error = smb_share_lock(smp->sm_share);
if (error)
goto out;
smb_share_put(smp->sm_share, scred);
SMB_LOCK();
dev = smp->sm_dev;
if (!dev)
panic("No private data for mount point");
sdp_trydestroy(dev);
mp->mnt_data = NULL;
SMB_UNLOCK();
free(smp, M_SMBFSDATA);
MNT_ILOCK(mp);
mp->mnt_flag &= ~MNT_LOCAL;
MNT_IUNLOCK(mp);
out:
smbfs_free_scred(scred);
return error;
}
/*
* smbfs_getattr call from vfs.
*/
int
smbfs_getattr(void *v)
{
struct vop_getattr_args /* {
struct vnode *a_vp;
struct vattr *a_vap;
kauth_cred_t a_cred;
} */ *ap = v;
struct vnode *vp = ap->a_vp;
struct smbnode *np = VTOSMB(vp);
struct vattr *va=ap->a_vap;
struct smbfattr fattr;
struct smb_cred scred;
u_quad_t oldsize;
int error;
SMBVDEBUG("%p: '%.*s' isroot %d\n", vp,
(int) np->n_nmlen, np->n_name, (vp->v_vflag & VV_ROOT) != 0);
if ((error = smbfs_attr_cachelookup(vp, va)) == 0)
return (0);
SMBVDEBUG0("not in the cache\n");
smb_makescred(&scred, curlwp, ap->a_cred);
oldsize = np->n_size;
error = smbfs_smb_lookup(np, NULL, 0, &fattr, &scred);
if (error) {
SMBVDEBUG("error %d\n", error);
return error;
}
smbfs_attr_cacheenter(vp, &fattr);
smbfs_attr_cachelookup(vp, va);
if ((np->n_flag & NOPEN) != 0)
np->n_size = oldsize;
return 0;
}
int
smbfs_write(void *v)
{
struct vop_write_args /* {
struct vnode *a_vp;
struct uio *a_uio;
int a_ioflag;
kauth_cred_t a_cred;
} */ *ap = v;
struct vnode *vp = ap->a_vp;
struct uio *uio = ap->a_uio;
SMBVDEBUG("%d,ofs=%lld,sz=%zu\n",vp->v_type,
(long long int)uio->uio_offset, uio->uio_resid);
if (vp->v_type != VREG)
return (EPERM);
return smbfs_writevnode(vp, uio, ap->a_cred, ap->a_ioflag);
}
/* Unmount the filesystem described by mp. */
int
smbfs_unmount(struct mount *mp, int mntflags)
{
struct lwp *l = curlwp;
struct smbmount *smp = VFSTOSMBFS(mp);
struct smb_cred scred;
struct vnode *smbfs_rootvp = SMBTOV(smp->sm_root);
int error, flags;
SMBVDEBUG("smbfs_unmount: flags=%04x\n", mntflags);
flags = 0;
if (mntflags & MNT_FORCE)
flags |= FORCECLOSE;
if (smbfs_rootvp->v_usecount > 1 && (mntflags & MNT_FORCE) == 0)
return EBUSY;
/* Flush all vnodes.
* Keep trying to flush the vnode list for the mount while
* some are still busy and we are making progress towards
* making them not busy. This is needed because smbfs vnodes
* reference their parent directory but may appear after their
* parent in the list; one pass over the vnode list is not
* sufficient in this case. */
do {
smp->sm_didrele = 0;
error = vflush(mp, smbfs_rootvp, flags);
} while (error == EBUSY && smp->sm_didrele != 0);
if (error)
return error;
vgone(smbfs_rootvp);
smb_makescred(&scred, l, l->l_cred);
smb_share_lock(smp->sm_share);
smb_share_put(smp->sm_share, &scred);
mp->mnt_data = NULL;
hashdone(smp->sm_hash, HASH_LIST, smp->sm_hashlen);
mutex_destroy(&smp->sm_hashlock);
free(smp, M_SMBFSDATA);
return 0;
}
/* Unmount the filesystem described by mp. */
static int
smbfs_unmount(struct mount *mp, int mntflags)
{
struct smbmount *smp = VFSTOSMBFS(mp);
struct smb_cred scred;
int error, flags;
SMBVDEBUG("smbfs_unmount: flags=%04x\n", mntflags);
flags = 0;
if (mntflags & MNT_FORCE)
flags |= FORCECLOSE;
/*
* Keep trying to flush the vnode list for the mount while
* some are still busy and we are making progress towards
* making them not busy. This is needed because smbfs vnodes
* reference their parent directory but may appear after their
* parent in the list; one pass over the vnode list is not
* sufficient in this case.
*/
do {
smp->sm_didrele = 0;
/* There is 1 extra root vnode reference from smbfs_mount(). */
error = vflush(mp, 1, flags);
} while (error == EBUSY && smp->sm_didrele != 0);
if (error)
return error;
smb_makescred(&scred, curthread, smp->sm_cred);
smb_share_put(smp->sm_share, &scred);
mp->mnt_data = (qaddr_t)0;
if (smp->sm_cred)
crfree(smp->sm_cred);
if (smp->sm_hash)
kfree(smp->sm_hash, M_SMBFSHASH);
lockdestroy(&smp->sm_hashlock);
#ifdef SMBFS_USEZONE
zfree(smbfsmount_zone, smp);
#else
kfree(smp, M_SMBFSDATA);
#endif
mp->mnt_flag &= ~MNT_LOCAL;
return error;
}
/*
* smbfs mount vfsop
* Set up mount info record and attach it to vfs struct.
*/
static int
smbfs_mount(vfs_t *vfsp, vnode_t *mvp, struct mounta *uap, cred_t *cr)
{
char *data = uap->dataptr;
int error;
smbnode_t *rtnp = NULL; /* root of this fs */
smbmntinfo_t *smi = NULL;
dev_t smbfs_dev;
int version;
int devfd;
zone_t *zone = curproc->p_zone;
zone_t *mntzone = NULL;
smb_share_t *ssp = NULL;
smb_cred_t scred;
int flags, sec;
STRUCT_DECL(smbfs_args, args); /* smbfs mount arguments */
if ((error = secpolicy_fs_mount(cr, mvp, vfsp)) != 0)
return (error);
if (mvp->v_type != VDIR)
return (ENOTDIR);
/*
* get arguments
*
* uap->datalen might be different from sizeof (args)
* in a compatible situation.
*/
STRUCT_INIT(args, get_udatamodel());
bzero(STRUCT_BUF(args), SIZEOF_STRUCT(smbfs_args, DATAMODEL_NATIVE));
if (copyin(data, STRUCT_BUF(args), MIN(uap->datalen,
SIZEOF_STRUCT(smbfs_args, DATAMODEL_NATIVE))))
return (EFAULT);
/*
* Check mount program version
*/
version = STRUCT_FGET(args, version);
if (version != SMBFS_VERSION) {
cmn_err(CE_WARN, "mount version mismatch:"
" kernel=%d, mount=%d\n",
SMBFS_VERSION, version);
return (EINVAL);
}
/*
* Deal with re-mount requests.
*/
if (uap->flags & MS_REMOUNT) {
cmn_err(CE_WARN, "MS_REMOUNT not implemented");
return (ENOTSUP);
}
/*
* Check for busy
*/
mutex_enter(&mvp->v_lock);
if (!(uap->flags & MS_OVERLAY) &&
(mvp->v_count != 1 || (mvp->v_flag & VROOT))) {
mutex_exit(&mvp->v_lock);
return (EBUSY);
}
mutex_exit(&mvp->v_lock);
/*
* Get the "share" from the netsmb driver (ssp).
* It is returned with a "ref" (hold) for us.
* Release this hold: at errout below, or in
* smbfs_freevfs().
*/
devfd = STRUCT_FGET(args, devfd);
error = smb_dev2share(devfd, &ssp);
if (error) {
cmn_err(CE_WARN, "invalid device handle %d (%d)\n",
devfd, error);
return (error);
}
/*
* Use "goto errout" from here on.
* See: ssp, smi, rtnp, mntzone
*/
/*
* Determine the zone we're being mounted into.
*/
zone_hold(mntzone = zone); /* start with this assumption */
if (getzoneid() == GLOBAL_ZONEID) {
zone_rele(mntzone);
mntzone = zone_find_by_path(refstr_value(vfsp->vfs_mntpt));
ASSERT(mntzone != NULL);
if (mntzone != zone) {
error = EBUSY;
goto errout;
}
}
/*
* Stop the mount from going any further if the zone is going away.
*/
if (zone_status_get(mntzone) >= ZONE_IS_SHUTTING_DOWN) {
error = EBUSY;
goto errout;
}
/*
* On a Trusted Extensions client, we may have to force read-only
* for read-down mounts.
*/
if (is_system_labeled()) {
void *addr;
int ipvers = 0;
struct smb_vc *vcp;
vcp = SSTOVC(ssp);
addr = smb_vc_getipaddr(vcp, &ipvers);
error = smbfs_mount_label_policy(vfsp, addr, ipvers, cr);
if (error > 0)
goto errout;
if (error == -1) {
/* change mount to read-only to prevent write-down */
vfs_setmntopt(vfsp, MNTOPT_RO, NULL, 0);
}
}
/* Prevent unload. */
atomic_inc_32(&smbfs_mountcount);
/*
* Create a mount record and link it to the vfs struct.
* No more possiblities for errors from here on.
* Tear-down of this stuff is in smbfs_free_smi()
*
* Compare with NFS: nfsrootvp()
*/
smi = kmem_zalloc(sizeof (*smi), KM_SLEEP);
mutex_init(&smi->smi_lock, NULL, MUTEX_DEFAULT, NULL);
cv_init(&smi->smi_statvfs_cv, NULL, CV_DEFAULT, NULL);
rw_init(&smi->smi_hash_lk, NULL, RW_DEFAULT, NULL);
smbfs_init_hash_avl(&smi->smi_hash_avl);
smi->smi_share = ssp;
ssp = NULL;
/*
* Convert the anonymous zone hold acquired via zone_hold() above
* into a zone reference.
*/
zone_init_ref(&smi->smi_zone_ref);
zone_hold_ref(mntzone, &smi->smi_zone_ref, ZONE_REF_SMBFS);
zone_rele(mntzone);
mntzone = NULL;
/*
* Initialize option defaults
*/
smi->smi_flags = SMI_LLOCK;
smi->smi_acregmin = SEC2HR(SMBFS_ACREGMIN);
smi->smi_acregmax = SEC2HR(SMBFS_ACREGMAX);
smi->smi_acdirmin = SEC2HR(SMBFS_ACDIRMIN);
smi->smi_acdirmax = SEC2HR(SMBFS_ACDIRMAX);
/*
* All "generic" mount options have already been
* handled in vfs.c:domount() - see mntopts stuff.
* Query generic options using vfs_optionisset().
*/
if (vfs_optionisset(vfsp, MNTOPT_INTR, NULL))
smi->smi_flags |= SMI_INT;
if (vfs_optionisset(vfsp, MNTOPT_ACL, NULL))
smi->smi_flags |= SMI_ACL;
/*
* Get the mount options that come in as smbfs_args,
* starting with args.flags (SMBFS_MF_xxx)
*/
flags = STRUCT_FGET(args, flags);
smi->smi_uid = STRUCT_FGET(args, uid);
smi->smi_gid = STRUCT_FGET(args, gid);
smi->smi_fmode = STRUCT_FGET(args, file_mode) & 0777;
smi->smi_dmode = STRUCT_FGET(args, dir_mode) & 0777;
/*
* Hande the SMBFS_MF_xxx flags.
*/
if (flags & SMBFS_MF_NOAC)
smi->smi_flags |= SMI_NOAC;
if (flags & SMBFS_MF_ACREGMIN) {
sec = STRUCT_FGET(args, acregmin);
if (sec < 0 || sec > SMBFS_ACMINMAX)
sec = SMBFS_ACMINMAX;
smi->smi_acregmin = SEC2HR(sec);
}
if (flags & SMBFS_MF_ACREGMAX) {
sec = STRUCT_FGET(args, acregmax);
if (sec < 0 || sec > SMBFS_ACMAXMAX)
sec = SMBFS_ACMAXMAX;
smi->smi_acregmax = SEC2HR(sec);
}
if (flags & SMBFS_MF_ACDIRMIN) {
sec = STRUCT_FGET(args, acdirmin);
if (sec < 0 || sec > SMBFS_ACMINMAX)
sec = SMBFS_ACMINMAX;
smi->smi_acdirmin = SEC2HR(sec);
}
if (flags & SMBFS_MF_ACDIRMAX) {
sec = STRUCT_FGET(args, acdirmax);
if (sec < 0 || sec > SMBFS_ACMAXMAX)
sec = SMBFS_ACMAXMAX;
smi->smi_acdirmax = SEC2HR(sec);
}
/*
* Get attributes of the remote file system,
* i.e. ACL support, named streams, etc.
*/
smb_credinit(&scred, cr);
error = smbfs_smb_qfsattr(smi->smi_share, &smi->smi_fsa, &scred);
smb_credrele(&scred);
if (error) {
SMBVDEBUG("smbfs_smb_qfsattr error %d\n", error);
}
/*
* We enable XATTR by default (via smbfs_mntopts)
* but if the share does not support named streams,
* force the NOXATTR option (also clears XATTR).
* Caller will set or clear VFS_XATTR after this.
*/
if ((smi->smi_fsattr & FILE_NAMED_STREAMS) == 0)
vfs_setmntopt(vfsp, MNTOPT_NOXATTR, NULL, 0);
/*
* Ditto ACLs (disable if not supported on this share)
*/
if ((smi->smi_fsattr & FILE_PERSISTENT_ACLS) == 0) {
vfs_setmntopt(vfsp, MNTOPT_NOACL, NULL, 0);
smi->smi_flags &= ~SMI_ACL;
}
/*
* Assign a unique device id to the mount
*/
mutex_enter(&smbfs_minor_lock);
do {
smbfs_minor = (smbfs_minor + 1) & MAXMIN32;
smbfs_dev = makedevice(smbfs_major, smbfs_minor);
} while (vfs_devismounted(smbfs_dev));
mutex_exit(&smbfs_minor_lock);
vfsp->vfs_dev = smbfs_dev;
vfs_make_fsid(&vfsp->vfs_fsid, smbfs_dev, smbfsfstyp);
vfsp->vfs_data = (caddr_t)smi;
vfsp->vfs_fstype = smbfsfstyp;
vfsp->vfs_bsize = MAXBSIZE;
vfsp->vfs_bcount = 0;
smi->smi_vfsp = vfsp;
smbfs_zonelist_add(smi); /* undo in smbfs_freevfs */
/*
* Create the root vnode, which we need in unmount
* for the call to smbfs_check_table(), etc.
* Release this hold in smbfs_unmount.
*/
rtnp = smbfs_node_findcreate(smi, "\\", 1, NULL, 0, 0,
&smbfs_fattr0);
ASSERT(rtnp != NULL);
rtnp->r_vnode->v_type = VDIR;
rtnp->r_vnode->v_flag |= VROOT;
smi->smi_root = rtnp;
/*
* NFS does other stuff here too:
* async worker threads
* init kstats
*
* End of code from NFS nfsrootvp()
*/
return (0);
errout:
vfsp->vfs_data = NULL;
if (smi != NULL)
smbfs_free_smi(smi);
if (mntzone != NULL)
zone_rele(mntzone);
if (ssp != NULL)
smb_share_rele(ssp);
return (error);
}
static int
smbfs_mount(struct mount *mp, char *path, caddr_t data, struct ucred *cred)
{
struct smbfs_args args; /* will hold data from mount request */
struct smbmount *smp = NULL;
struct smb_vc *vcp;
struct smb_share *ssp = NULL;
struct vnode *vp;
struct smb_cred scred;
int error;
char *pc, *pe;
if (data == NULL) {
kprintf("missing data argument\n");
return EINVAL;
}
if (mp->mnt_flag & MNT_UPDATE) {
kprintf("MNT_UPDATE not implemented");
return EOPNOTSUPP;
}
error = copyin(data, (caddr_t)&args, sizeof(struct smbfs_args));
if (error)
return error;
if (args.version != SMBFS_VERSION) {
kprintf("mount version mismatch: kernel=%d, mount=%d\n",
SMBFS_VERSION, args.version);
return EINVAL;
}
smb_makescred(&scred, curthread, cred);
error = smb_dev2share(args.dev, SMBM_EXEC, &scred, &ssp);
if (error) {
kprintf("invalid device handle %d (%d)\n", args.dev, error);
return error;
}
vcp = SSTOVC(ssp);
smb_share_unlock(ssp, 0);
mp->mnt_stat.f_iosize = SSTOVC(ssp)->vc_txmax;
#ifdef SMBFS_USEZONE
smp = zalloc(smbfsmount_zone);
#else
MALLOC(smp, struct smbmount*, sizeof(*smp), M_SMBFSDATA, M_WAITOK|M_USE_RESERVE);
#endif
if (smp == NULL) {
kprintf("could not alloc smbmount\n");
error = ENOMEM;
goto bad;
}
bzero(smp, sizeof(*smp));
mp->mnt_data = (qaddr_t)smp;
smp->sm_cred = crhold(cred);
smp->sm_hash = hashinit(desiredvnodes, M_SMBFSHASH, &smp->sm_hashlen);
if (smp->sm_hash == NULL)
goto bad;
lockinit(&smp->sm_hashlock, "smbfsh", 0, 0);
smp->sm_share = ssp;
smp->sm_root = NULL;
smp->sm_args = args;
smp->sm_caseopt = args.caseopt;
smp->sm_args.file_mode = (smp->sm_args.file_mode &
(S_IRWXU|S_IRWXG|S_IRWXO)) | S_IFREG;
smp->sm_args.dir_mode = (smp->sm_args.dir_mode &
(S_IRWXU|S_IRWXG|S_IRWXO)) | S_IFDIR;
/* simple_lock_init(&smp->sm_npslock);*/
pc = mp->mnt_stat.f_mntfromname;
pe = pc + sizeof(mp->mnt_stat.f_mntfromname);
bzero(pc, MNAMELEN);
*pc++ = '/';
*pc++ = '/';
pc=index(strncpy(pc, vcp->vc_username, pe - pc - 2), 0);
if (pc < pe-1) {
*(pc++) = '@';
pc = index(strncpy(pc, vcp->vc_srvname, pe - pc - 2), 0);
if (pc < pe - 1) {
*(pc++) = '/';
strncpy(pc, ssp->ss_name, pe - pc - 2);
}
}
/* protect against invalid mount points */
smp->sm_args.mount_point[sizeof(smp->sm_args.mount_point) - 1] = '\0';
vfs_getnewfsid(mp);
vfs_add_vnodeops(mp, &smbfs_vnode_vops, &mp->mnt_vn_norm_ops);
error = smbfs_root(mp, &vp);
if (error)
goto bad;
vn_unlock(vp);
SMBVDEBUG("root.v_sysrefs = %d\n", vp->v_sysref.refcnt);
#ifdef DIAGNOSTICS
SMBERROR("mp=%p\n", mp);
#endif
return error;
bad:
if (smp) {
if (smp->sm_cred)
crfree(smp->sm_cred);
if (smp->sm_hash)
kfree(smp->sm_hash, M_SMBFSHASH);
lockdestroy(&smp->sm_hashlock);
#ifdef SMBFS_USEZONE
zfree(smbfsmount_zone, smp);
#else
kfree(smp, M_SMBFSDATA);
#endif
}
if (ssp)
smb_share_put(ssp, &scred);
return error;
}
/* ARGSUSED */
int
smbfs_open(void *v)
{
struct vop_open_args /* {
struct vnode *a_vp;
int a_mode;
kauth_cred_t a_cred;
} */ *ap = v;
struct lwp *l = curlwp;
struct vnode *vp = ap->a_vp;
struct smbnode *np = VTOSMB(vp);
struct smb_cred scred;
struct vattr vattr;
u_int32_t sv_caps = SMB_CAPS(SSTOVC(np->n_mount->sm_share));
int error, accmode;
SMBVDEBUG("%.*s,%d\n", (int) np->n_nmlen, np->n_name,
(np->n_flag & NOPEN) != 0);
if (vp->v_type != VREG && vp->v_type != VDIR) {
SMBFSERR("open eacces vtype=%d\n", vp->v_type);
return EACCES;
}
if (vp->v_type == VDIR) {
if ((sv_caps & SMB_CAP_NT_SMBS) == 0) {
np->n_flag |= NOPEN;
return 0;
}
goto do_open; /* skip 'modified' check */
}
if (np->n_flag & NMODIFIED) {
if ((error = smbfs_vinvalbuf(vp, V_SAVE, ap->a_cred, l, 1)) == EINTR)
return error;
smbfs_attr_cacheremove(vp);
error = VOP_GETATTR(vp, &vattr, ap->a_cred);
if (error)
return error;
np->n_mtime.tv_sec = vattr.va_mtime.tv_sec;
} else {
error = VOP_GETATTR(vp, &vattr, ap->a_cred);
if (error)
return error;
if (np->n_mtime.tv_sec != vattr.va_mtime.tv_sec) {
error = smbfs_vinvalbuf(vp, V_SAVE, ap->a_cred, l, 1);
if (error == EINTR)
return error;
np->n_mtime.tv_sec = vattr.va_mtime.tv_sec;
}
}
do_open:
if ((np->n_flag & NOPEN) != 0)
return 0;
smb_makescred(&scred, l, ap->a_cred);
if (vp->v_type == VDIR)
error = smbfs_smb_ntcreatex(np,
SMB_SM_DENYNONE|SMB_AM_OPENREAD, &scred);
else {
/*
* Use DENYNONE to give unixy semantics of permitting
* everything not forbidden by permissions. Ie denial
* is up to server with clients/openers needing to use
* advisory locks for further control.
*/
accmode = SMB_SM_DENYNONE|SMB_AM_OPENREAD;
if ((vp->v_mount->mnt_flag & MNT_RDONLY) == 0)
accmode = SMB_SM_DENYNONE|SMB_AM_OPENRW;
error = smbfs_smb_open(np, accmode, &scred);
if (error) {
if (ap->a_mode & FWRITE)
return EACCES;
error = smbfs_smb_open(np,
SMB_SM_DENYNONE|SMB_AM_OPENREAD, &scred);
}
}
if (!error)
np->n_flag |= NOPEN;
smbfs_attr_cacheremove(vp);
return error;
}
/*ARGSUSED*/
int
smbfs_uninit(struct vfsconf *vfsp)
{
SMBVDEBUG("done.\n");
return 0;
}
static int
smbfs_mount(struct mount *mp)
{
struct smbmount *smp = NULL;
struct smb_vc *vcp;
struct smb_share *ssp = NULL;
struct vnode *vp;
struct thread *td;
struct smb_dev *dev;
struct smb_cred *scred;
int error, v;
char *pc, *pe;
dev = NULL;
td = curthread;
if (mp->mnt_flag & (MNT_UPDATE | MNT_ROOTFS))
return EOPNOTSUPP;
if (vfs_filteropt(mp->mnt_optnew, smbfs_opts)) {
vfs_mount_error(mp, "%s", "Invalid option");
return (EINVAL);
}
scred = smbfs_malloc_scred();
smb_makescred(scred, td, td->td_ucred);
/* Ask userspace of `fd`, the file descriptor of this session */
if (1 != vfs_scanopt(mp->mnt_optnew, "fd", "%d", &v)) {
vfs_mount_error(mp, "No fd option");
smbfs_free_scred(scred);
return (EINVAL);
}
error = smb_dev2share(v, SMBM_EXEC, scred, &ssp, &dev);
smp = malloc(sizeof(*smp), M_SMBFSDATA, M_WAITOK | M_ZERO);
if (error) {
printf("invalid device handle %d (%d)\n", v, error);
vfs_mount_error(mp, "invalid device handle %d %d\n", v, error);
smbfs_free_scred(scred);
free(smp, M_SMBFSDATA);
return error;
}
vcp = SSTOVC(ssp);
smb_share_unlock(ssp);
mp->mnt_stat.f_iosize = SSTOVC(ssp)->vc_txmax;
mp->mnt_data = smp;
smp->sm_share = ssp;
smp->sm_root = NULL;
smp->sm_dev = dev;
if (1 != vfs_scanopt(mp->mnt_optnew,
"caseopt", "%d", &smp->sm_caseopt)) {
vfs_mount_error(mp, "Invalid caseopt");
error = EINVAL;
goto bad;
}
if (1 != vfs_scanopt(mp->mnt_optnew, "uid", "%d", &v)) {
vfs_mount_error(mp, "Invalid uid");
error = EINVAL;
goto bad;
}
smp->sm_uid = v;
if (1 != vfs_scanopt(mp->mnt_optnew, "gid", "%d", &v)) {
vfs_mount_error(mp, "Invalid gid");
error = EINVAL;
goto bad;
}
smp->sm_gid = v;
if (1 != vfs_scanopt(mp->mnt_optnew, "file_mode", "%d", &v)) {
vfs_mount_error(mp, "Invalid file_mode");
error = EINVAL;
goto bad;
}
smp->sm_file_mode = (v & (S_IRWXU|S_IRWXG|S_IRWXO)) | S_IFREG;
if (1 != vfs_scanopt(mp->mnt_optnew, "dir_mode", "%d", &v)) {
vfs_mount_error(mp, "Invalid dir_mode");
error = EINVAL;
goto bad;
}
smp->sm_dir_mode = (v & (S_IRWXU|S_IRWXG|S_IRWXO)) | S_IFDIR;
vfs_flagopt(mp->mnt_optnew,
"nolong", &smp->sm_flags, SMBFS_MOUNT_NO_LONG);
pc = mp->mnt_stat.f_mntfromname;
pe = pc + sizeof(mp->mnt_stat.f_mntfromname);
bzero(pc, MNAMELEN);
*pc++ = '/';
*pc++ = '/';
pc = strchr(strncpy(pc, vcp->vc_username, pe - pc - 2), 0);
if (pc < pe-1) {
*(pc++) = '@';
pc = strchr(strncpy(pc, vcp->vc_srvname, pe - pc - 2), 0);
if (pc < pe - 1) {
*(pc++) = '/';
strncpy(pc, ssp->ss_name, pe - pc - 2);
}
}
vfs_getnewfsid(mp);
error = smbfs_root(mp, LK_EXCLUSIVE, &vp);
if (error) {
vfs_mount_error(mp, "smbfs_root error: %d", error);
goto bad;
}
VOP_UNLOCK(vp, 0);
SMBVDEBUG("root.v_usecount = %d\n", vrefcnt(vp));
#ifdef DIAGNOSTIC
SMBERROR("mp=%p\n", mp);
#endif
smbfs_free_scred(scred);
return error;
bad:
if (ssp)
smb_share_put(ssp, scred);
smbfs_free_scred(scred);
SMB_LOCK();
if (error && smp->sm_dev == dev) {
smp->sm_dev = NULL;
sdp_trydestroy(dev);
}
SMB_UNLOCK();
free(smp, M_SMBFSDATA);
return error;
}
static int
smbfs_node_alloc(struct mount *mp, struct vnode *dvp, const char *dirnm,
int dirlen, const char *name, int nmlen, char sep,
struct smbfattr *fap, struct vnode **vpp)
{
struct vattr vattr;
struct thread *td = curthread; /* XXX */
struct smbmount *smp = VFSTOSMBFS(mp);
struct smbnode *np, *dnp;
struct vnode *vp, *vp2;
struct smbcmp sc;
char *p, *rpath;
int error, rplen;
sc.n_parent = dvp;
sc.n_nmlen = nmlen;
sc.n_name = name;
if (smp->sm_root != NULL && dvp == NULL) {
SMBERROR("do not allocate root vnode twice!\n");
return EINVAL;
}
if (nmlen == 2 && bcmp(name, "..", 2) == 0) {
if (dvp == NULL)
return EINVAL;
vp = VTOSMB(VTOSMB(dvp)->n_parent)->n_vnode;
error = vget(vp, LK_EXCLUSIVE, td);
if (error == 0)
*vpp = vp;
return error;
} else if (nmlen == 1 && name[0] == '.') {
SMBERROR("do not call me with dot!\n");
return EINVAL;
}
dnp = dvp ? VTOSMB(dvp) : NULL;
if (dnp == NULL && dvp != NULL) {
vprint("smbfs_node_alloc: dead parent vnode", dvp);
return EINVAL;
}
error = vfs_hash_get(mp, smbfs_hash(name, nmlen), LK_EXCLUSIVE, td,
vpp, smbfs_vnode_cmp, &sc);
if (error)
return (error);
if (*vpp) {
np = VTOSMB(*vpp);
/* Force cached attributes to be refreshed if stale. */
(void)VOP_GETATTR(*vpp, &vattr, td->td_ucred);
/*
* If the file type on the server is inconsistent with
* what it was when we created the vnode, kill the
* bogus vnode now and fall through to the code below
* to create a new one with the right type.
*/
if (((*vpp)->v_type == VDIR &&
(np->n_dosattr & SMB_FA_DIR) == 0) ||
((*vpp)->v_type == VREG &&
(np->n_dosattr & SMB_FA_DIR) != 0)) {
vgone(*vpp);
vput(*vpp);
}
else {
SMBVDEBUG("vnode taken from the hashtable\n");
return (0);
}
}
/*
* If we don't have node attributes, then it is an explicit lookup
* for an existing vnode.
*/
if (fap == NULL)
return ENOENT;
error = getnewvnode("smbfs", mp, &smbfs_vnodeops, vpp);
if (error)
return (error);
vp = *vpp;
np = malloc(sizeof *np, M_SMBNODE, M_WAITOK | M_ZERO);
rplen = dirlen;
if (sep != '\0')
rplen++;
rplen += nmlen;
rpath = malloc(rplen + 1, M_SMBNODENAME, M_WAITOK);
p = rpath;
bcopy(dirnm, p, dirlen);
p += dirlen;
if (sep != '\0')
*p++ = sep;
if (name != NULL) {
bcopy(name, p, nmlen);
p += nmlen;
}
*p = '\0';
MPASS(p == rpath + rplen);
lockmgr(vp->v_vnlock, LK_EXCLUSIVE, NULL);
/* Vnode initialization */
vp->v_type = fap->fa_attr & SMB_FA_DIR ? VDIR : VREG;
vp->v_data = np;
np->n_vnode = vp;
np->n_mount = VFSTOSMBFS(mp);
np->n_rpath = rpath;
np->n_rplen = rplen;
np->n_nmlen = nmlen;
np->n_name = smbfs_name_alloc(name, nmlen);
np->n_ino = fap->fa_ino;
if (dvp) {
ASSERT_VOP_LOCKED(dvp, "smbfs_node_alloc");
np->n_parent = dvp;
np->n_parentino = VTOSMB(dvp)->n_ino;
if (/*vp->v_type == VDIR &&*/ (dvp->v_vflag & VV_ROOT) == 0) {
vref(dvp);
np->n_flag |= NREFPARENT;
}
} else if (vp->v_type == VREG)
SMBERROR("new vnode '%s' born without parent ?\n", np->n_name);
error = insmntque(vp, mp);
if (error) {
free(np, M_SMBNODE);
return (error);
}
error = vfs_hash_insert(vp, smbfs_hash(name, nmlen), LK_EXCLUSIVE,
td, &vp2, smbfs_vnode_cmp, &sc);
if (error)
return (error);
if (vp2 != NULL)
*vpp = vp2;
return (0);
}
/* ARGSUSED */
int
smbfs_start(struct mount *mp, int flags)
{
SMBVDEBUG("flags=%04x\n", flags);
return 0;
}
int
smbfs_mount(struct mount *mp, const char *path, void *data, size_t *data_len)
{
struct lwp *l = curlwp;
struct smbfs_args *args = data; /* holds data from mount request */
struct smbmount *smp = NULL;
struct smb_vc *vcp;
struct smb_share *ssp = NULL;
struct smb_cred scred;
struct proc *p;
int error;
if (*data_len < sizeof *args)
return EINVAL;
p = l->l_proc;
if (mp->mnt_flag & MNT_GETARGS) {
smp = VFSTOSMBFS(mp);
if (smp == NULL)
return EIO;
*args = smp->sm_args;
*data_len = sizeof *args;
return 0;
}
if (mp->mnt_flag & MNT_UPDATE)
return EOPNOTSUPP;
if (args->version != SMBFS_VERSION) {
SMBVDEBUG("mount version mismatch: kernel=%d, mount=%d\n",
SMBFS_VERSION, args->version);
return EINVAL;
}
error = set_statvfs_info(path, UIO_USERSPACE, NULL, UIO_USERSPACE,
mp->mnt_op->vfs_name, mp, l);
if (error)
return error;
smb_makescred(&scred, l, l->l_cred);
error = smb_dev2share(args->dev_fd, SMBM_EXEC, &scred, &ssp);
if (error)
return error;
smb_share_unlock(ssp); /* keep ref, but unlock */
vcp = SSTOVC(ssp);
mp->mnt_stat.f_iosize = vcp->vc_txmax;
mp->mnt_stat.f_namemax =
(vcp->vc_hflags2 & SMB_FLAGS2_KNOWS_LONG_NAMES) ? 255 : 12;
MALLOC(smp, struct smbmount *, sizeof(*smp), M_SMBFSDATA, M_WAITOK);
memset(smp, 0, sizeof(*smp));
mp->mnt_data = smp;
smp->sm_hash = hashinit(desiredvnodes, HASH_LIST, true,
&smp->sm_hashlen);
mutex_init(&smp->sm_hashlock, MUTEX_DEFAULT, IPL_NONE);
smp->sm_share = ssp;
smp->sm_root = NULL;
smp->sm_args = *args;
smp->sm_caseopt = args->caseopt;
smp->sm_args.file_mode = (smp->sm_args.file_mode &
(S_IRWXU|S_IRWXG|S_IRWXO)) | S_IFREG;
smp->sm_args.dir_mode = (smp->sm_args.dir_mode &
(S_IRWXU|S_IRWXG|S_IRWXO)) | S_IFDIR;
memset(mp->mnt_stat.f_mntfromname, 0, MNAMELEN);
snprintf(mp->mnt_stat.f_mntfromname, MNAMELEN,
"//%s@%s/%s", vcp->vc_username, vcp->vc_srvname, ssp->ss_name);
vfs_getnewfsid(mp);
return (0);
}
static int
smbfs_readvdir(struct vnode *vp, struct uio *uio, struct ucred *cred)
{
struct dirent de;
struct componentname cn;
struct smb_cred *scred;
struct smbfs_fctx *ctx;
struct vnode *newvp;
struct smbnode *np = VTOSMB(vp);
int error/*, *eofflag = ap->a_eofflag*/;
long offset, limit;
np = VTOSMB(vp);
SMBVDEBUG("dirname='%s'\n", np->n_name);
scred = smbfs_malloc_scred();
smb_makescred(scred, uio->uio_td, cred);
offset = uio->uio_offset / DE_SIZE; /* offset in the directory */
limit = uio->uio_resid / DE_SIZE;
if (uio->uio_resid < DE_SIZE || uio->uio_offset < 0) {
error = EINVAL;
goto out;
}
while (limit && offset < 2) {
limit--;
bzero((caddr_t)&de, DE_SIZE);
de.d_reclen = DE_SIZE;
de.d_fileno = (offset == 0) ? np->n_ino :
(np->n_parent ? np->n_parentino : 2);
if (de.d_fileno == 0)
de.d_fileno = 0x7ffffffd + offset;
de.d_namlen = offset + 1;
de.d_name[0] = '.';
de.d_name[1] = '.';
de.d_name[offset + 1] = '\0';
de.d_type = DT_DIR;
error = uiomove(&de, DE_SIZE, uio);
if (error)
goto out;
offset++;
uio->uio_offset += DE_SIZE;
}
if (limit == 0) {
error = 0;
goto out;
}
if (offset != np->n_dirofs || np->n_dirseq == NULL) {
SMBVDEBUG("Reopening search %ld:%ld\n", offset, np->n_dirofs);
if (np->n_dirseq) {
smbfs_findclose(np->n_dirseq, scred);
np->n_dirseq = NULL;
}
np->n_dirofs = 2;
error = smbfs_findopen(np, "*", 1,
SMB_FA_SYSTEM | SMB_FA_HIDDEN | SMB_FA_DIR,
scred, &ctx);
if (error) {
SMBVDEBUG("can not open search, error = %d", error);
goto out;
}
np->n_dirseq = ctx;
} else
ctx = np->n_dirseq;
while (np->n_dirofs < offset) {
error = smbfs_findnext(ctx, offset - np->n_dirofs++, scred);
if (error) {
smbfs_findclose(np->n_dirseq, scred);
np->n_dirseq = NULL;
error = ENOENT ? 0 : error;
goto out;
}
}
error = 0;
for (; limit; limit--, offset++) {
error = smbfs_findnext(ctx, limit, scred);
if (error)
break;
np->n_dirofs++;
bzero((caddr_t)&de, DE_SIZE);
de.d_reclen = DE_SIZE;
de.d_fileno = ctx->f_attr.fa_ino;
de.d_type = (ctx->f_attr.fa_attr & SMB_FA_DIR) ? DT_DIR : DT_REG;
de.d_namlen = ctx->f_nmlen;
bcopy(ctx->f_name, de.d_name, de.d_namlen);
de.d_name[de.d_namlen] = '\0';
if (smbfs_fastlookup) {
error = smbfs_nget(vp->v_mount, vp, ctx->f_name,
ctx->f_nmlen, &ctx->f_attr, &newvp);
if (!error) {
cn.cn_nameptr = de.d_name;
cn.cn_namelen = de.d_namlen;
cache_enter(vp, newvp, &cn);
vput(newvp);
}
}
error = uiomove(&de, DE_SIZE, uio);
if (error)
break;
}
if (error == ENOENT)
error = 0;
uio->uio_offset = offset * DE_SIZE;
out:
smbfs_free_scred(scred);
return error;
}
/*
* Get file system statistics.
*/
static int
smbfs_statvfs(vfs_t *vfsp, statvfs64_t *sbp)
{
int error;
smbmntinfo_t *smi = VFTOSMI(vfsp);
smb_share_t *ssp = smi->smi_share;
statvfs64_t stvfs;
hrtime_t now;
smb_cred_t scred;
if (curproc->p_zone != smi->smi_zone_ref.zref_zone)
return (EPERM);
if (smi->smi_flags & SMI_DEAD || vfsp->vfs_flag & VFS_UNMOUNTED)
return (EIO);
mutex_enter(&smi->smi_lock);
/*
* Use cached result if still valid.
*/
recheck:
now = gethrtime();
if (now < smi->smi_statfstime) {
error = 0;
goto cache_hit;
}
/*
* FS attributes are stale, so someone
* needs to do an OTW call to get them.
* Serialize here so only one thread
* does the OTW call.
*/
if (smi->smi_status & SM_STATUS_STATFS_BUSY) {
smi->smi_status |= SM_STATUS_STATFS_WANT;
if (!cv_wait_sig(&smi->smi_statvfs_cv, &smi->smi_lock)) {
mutex_exit(&smi->smi_lock);
return (EINTR);
}
/* Hope status is valid now. */
goto recheck;
}
smi->smi_status |= SM_STATUS_STATFS_BUSY;
mutex_exit(&smi->smi_lock);
/*
* Do the OTW call. Note: lock NOT held.
*/
smb_credinit(&scred, NULL);
bzero(&stvfs, sizeof (stvfs));
error = smbfs_smb_statfs(ssp, &stvfs, &scred);
smb_credrele(&scred);
if (error) {
SMBVDEBUG("statfs error=%d\n", error);
} else {
/*
* Set a few things the OTW call didn't get.
*/
stvfs.f_frsize = stvfs.f_bsize;
stvfs.f_favail = stvfs.f_ffree;
stvfs.f_fsid = (unsigned long)vfsp->vfs_fsid.val[0];
bcopy(fs_type_name, stvfs.f_basetype, FSTYPSZ);
stvfs.f_flag = vf_to_stf(vfsp->vfs_flag);
stvfs.f_namemax = smi->smi_fsa.fsa_maxname;
/*
* Save the result, update lifetime
*/
now = gethrtime();
smi->smi_statfstime = now +
(SM_MAX_STATFSTIME * (hrtime_t)NANOSEC);
smi->smi_statvfsbuf = stvfs; /* struct assign! */
}
mutex_enter(&smi->smi_lock);
if (smi->smi_status & SM_STATUS_STATFS_WANT)
cv_broadcast(&smi->smi_statvfs_cv);
smi->smi_status &= ~(SM_STATUS_STATFS_BUSY | SM_STATUS_STATFS_WANT);
/*
* Copy the statvfs data to caller's buf.
* Note: struct assignment
*/
cache_hit:
if (error == 0)
*sbp = smi->smi_statvfsbuf;
mutex_exit(&smi->smi_lock);
return (error);
}
static int
smbfs_readvdir(struct vnode *vp, struct uio *uio, struct ucred *cred)
{
struct smb_cred scred;
struct smbfs_fctx *ctx;
struct vnode *newvp;
struct smbnode *np;
int error, offset, retval;
np = VTOSMB(vp);
SMBVDEBUG("dirname='%s'\n", np->n_name);
smb_makescred(&scred, uio->uio_td, cred);
if (uio->uio_offset < 0 || uio->uio_offset > INT_MAX)
return(EINVAL);
error = 0;
offset = uio->uio_offset;
if (uio->uio_resid > 0 && offset < 1) {
if (vop_write_dirent(&error, uio, np->n_ino, DT_DIR, 1, "."))
goto done;
if (error)
goto done;
++offset;
}
if (uio->uio_resid > 0 && offset < 2) {
if (vop_write_dirent(&error, uio,
np->n_parent ? VTOSMB(np->n_parent)->n_ino : 2,
DT_DIR, 2, ".."))
goto done;
if (error)
goto done;
++offset;
}
if (uio->uio_resid == 0)
goto done;
if (offset != np->n_dirofs || np->n_dirseq == NULL) {
SMBVDEBUG("Reopening search %ld:%ld\n", offset, np->n_dirofs);
if (np->n_dirseq) {
smbfs_findclose(np->n_dirseq, &scred);
np->n_dirseq = NULL;
}
np->n_dirofs = 2;
error = smbfs_findopen(np, "*", 1,
SMB_FA_SYSTEM | SMB_FA_HIDDEN | SMB_FA_DIR,
&scred, &ctx);
if (error) {
SMBVDEBUG("can not open search, error = %d", error);
return error;
}
np->n_dirseq = ctx;
} else {
ctx = np->n_dirseq;
}
while (np->n_dirofs < offset) {
error = smbfs_findnext(ctx, offset - np->n_dirofs, &scred);
++np->n_dirofs;
if (error) {
smbfs_findclose(np->n_dirseq, &scred);
np->n_dirseq = NULL;
return error == ENOENT ? 0 : error;
}
}
error = 0;
while (uio->uio_resid > 0 && !error) {
/*
* Overestimate the size of a record a bit, doesn't really
* hurt to be wrong here.
*/
error = smbfs_findnext(ctx, uio->uio_resid / _DIRENT_RECLEN(255) + 1, &scred);
if (error)
break;
np->n_dirofs++;
++offset;
retval = vop_write_dirent(&error, uio, ctx->f_attr.fa_ino,
(ctx->f_attr.fa_attr & SMB_FA_DIR) ? DT_DIR : DT_REG,
ctx->f_nmlen, ctx->f_name);
if (retval)
break;
if (smbfs_fastlookup && !error) {
error = smbfs_nget(vp->v_mount, vp, ctx->f_name,
ctx->f_nmlen, &ctx->f_attr, &newvp);
if (!error)
vput(newvp);
}
}
if (error == ENOENT)
error = 0;
done:
uio->uio_offset = offset;
return error;
}
/*
* Vnode op for VM putpages.
* possible bug: all IO done in sync mode
* Note that vop_close always invalidate pages before close, so it's
* not necessary to open vnode.
*
* smbfs_putpages(struct vnode *a_vp, vm_page_t *a_m, int a_count, int a_sync,
* int *a_rtvals, vm_ooffset_t a_offset)
*/
int
smbfs_putpages(struct vop_putpages_args *ap)
{
int error;
struct vnode *vp = ap->a_vp;
struct thread *td = curthread; /* XXX */
struct ucred *cred;
#ifdef SMBFS_RWGENERIC
KKASSERT(td->td_proc);
cred = td->td_proc->p_ucred;
VOP_OPEN(vp, FWRITE, cred, NULL);
error = vop_stdputpages(ap);
VOP_CLOSE(vp, FWRITE, cred);
return error;
#else
struct uio uio;
struct iovec iov;
vm_offset_t kva;
struct buf *bp;
int i, npages, count;
int doclose;
int *rtvals;
struct smbmount *smp;
struct smbnode *np;
struct smb_cred scred;
vm_page_t *pages;
KKASSERT(td->td_proc);
cred = td->td_proc->p_ucred;
/* VOP_OPEN(vp, FWRITE, cred, NULL);*/
np = VTOSMB(vp);
smp = VFSTOSMBFS(vp->v_mount);
pages = ap->a_m;
count = ap->a_count;
rtvals = ap->a_rtvals;
npages = btoc(count);
for (i = 0; i < npages; i++) {
rtvals[i] = VM_PAGER_AGAIN;
}
bp = getpbuf_kva(&smbfs_pbuf_freecnt);
kva = (vm_offset_t) bp->b_data;
pmap_qenter(kva, pages, npages);
iov.iov_base = (caddr_t) kva;
iov.iov_len = count;
uio.uio_iov = &iov;
uio.uio_iovcnt = 1;
uio.uio_offset = IDX_TO_OFF(pages[0]->pindex);
uio.uio_resid = count;
uio.uio_segflg = UIO_SYSSPACE;
uio.uio_rw = UIO_WRITE;
uio.uio_td = td;
SMBVDEBUG("ofs=%d,resid=%d\n",(int)uio.uio_offset, uio.uio_resid);
smb_makescred(&scred, td, cred);
/*
* This is kinda nasty. Since smbfs is physically closing the
* fid on close(), we have to reopen it if necessary. There are
* other races here too, such as if another process opens the same
* file while we are blocked in read, or the file is open read-only
* XXX
*/
error = 0;
doclose = 0;
if (np->n_opencount == 0) {
error = smbfs_smb_open(np, SMB_AM_OPENRW, &scred);
if (error == 0)
doclose = 1;
}
if (error == 0)
error = smb_write(smp->sm_share, np->n_fid, &uio, &scred);
if (doclose)
smbfs_smb_close(smp->sm_share, np->n_fid, NULL, &scred);
/* VOP_CLOSE(vp, FWRITE, cred);*/
SMBVDEBUG("paged write done: %d\n", error);
pmap_qremove(kva, npages);
relpbuf(bp, &smbfs_pbuf_freecnt);
if (!error) {
int nwritten = round_page(count - uio.uio_resid) / PAGE_SIZE;
for (i = 0; i < nwritten; i++) {
rtvals[i] = VM_PAGER_OK;
vm_page_undirty(pages[i]);
}
}
return rtvals[0];
#endif /* SMBFS_RWGENERIC */
}
