/* Unmount the filesystem described by mp. */
static int
nwfs_unmount(struct mount *mp, int mntflags)
{
struct nwmount *nmp = VFSTONWFS(mp);
struct ncp_conn *conn;
int error, flags;
NCPVODEBUG("nwfs_unmount: flags=%04x\n",mntflags);
flags = 0;
if (mntflags & MNT_FORCE)
flags |= FORCECLOSE;
/* There is 1 extra root vnode reference from nwfs_mount(). */
error = vflush(mp, 1, flags);
if (error)
return (error);
conn = NWFSTOCONN(nmp);
ncp_conn_puthandle(nmp->connh,NULL,0);
if (ncp_conn_lock(conn, curthread, proc0.p_ucred, NCPM_WRITE | NCPM_EXECUTE) == 0) {
if(ncp_disconnect(conn))
ncp_conn_unlock(conn, curthread);
}
mp->mnt_data = (qaddr_t)0;
if (nmp->m.flags & NWFS_MOUNT_HAVE_NLS)
kfree(nmp->m.nls.to_lower, M_NWFSDATA);
kfree(nmp, M_NWFSDATA);
mp->mnt_flag &= ~MNT_LOCAL;
return (error);
}
/*
* mp - path - addr in user space of mount point (ie /usr or whatever)
* data - addr in user space of mount params
*/
static int nwfs_mount(struct mount *mp)
{
struct nwfs_args args; /* will hold data from mount request */
int error;
struct nwmount *nmp = NULL;
struct ncp_conn *conn = NULL;
struct ncp_handle *handle = NULL;
struct vnode *vp;
struct thread *td;
char *pc,*pe;
td = curthread;
if (mp->mnt_flag & MNT_ROOTFS)
return (EOPNOTSUPP);
if (mp->mnt_flag & MNT_UPDATE) {
nwfs_printf("MNT_UPDATE not implemented");
return (EOPNOTSUPP);
}
error = vfs_copyopt(mp->mnt_optnew, "nwfs_args", &args, sizeof args);
if (error)
return (error);
if (args.version != NWFS_VERSION) {
nwfs_printf("mount version mismatch: kernel=%d, mount=%d\n",NWFS_VERSION,args.version);
return (1);
}
error = ncp_conn_getbyref(args.connRef, td , td->td_ucred,NCPM_EXECUTE,&conn);
if (error) {
nwfs_printf("invalid connection refernce %d\n",args.connRef);
return (error);
}
error = ncp_conn_gethandle(conn, NULL, &handle);
if (error) {
nwfs_printf("can't get connection handle\n");
return (error);
}
ncp_conn_unlock(conn, td); /* we keep the ref */
mp->mnt_stat.f_iosize = conn->buffer_size;
/* We must malloc our own mount info */
nmp = malloc(sizeof(struct nwmount),M_NWFSDATA,
M_WAITOK | M_USE_RESERVE | M_ZERO);
if (nmp == NULL) {
nwfs_printf("could not alloc nwmount\n");
error = ENOMEM;
goto bad;
}
mp->mnt_data = nmp;
nmp->connh = handle;
nmp->n_root = NULL;
nmp->n_id = nwfsid++;
nmp->m = args;
nmp->m.file_mode = (nmp->m.file_mode &
(S_IRWXU|S_IRWXG|S_IRWXO)) | S_IFREG;
nmp->m.dir_mode = (nmp->m.dir_mode &
(S_IRWXU|S_IRWXG|S_IRWXO)) | S_IFDIR;
if ((error = nwfs_initnls(nmp)) != 0) goto bad;
pc = mp->mnt_stat.f_mntfromname;
pe = pc+sizeof(mp->mnt_stat.f_mntfromname);
bzero(pc, MNAMELEN);
*(pc++) = '/';
pc = index(strncpy(pc, conn->li.server, pe-pc-2),0);
if (pc < pe-1) {
*(pc++) = ':';
pc=index(strncpy(pc, conn->li.user, pe-pc-2),0);
if (pc < pe-1) {
*(pc++) = '/';
strncpy(pc, nmp->m.mounted_vol, pe-pc-2);
}
}
/* protect against invalid mount points */
nmp->m.mount_point[sizeof(nmp->m.mount_point)-1] = '\0';
vfs_getnewfsid(mp);
error = nwfs_root(mp, LK_EXCLUSIVE, &vp);
if (error)
goto bad;
/*
* Lose the lock but keep the ref.
*/
VOP_UNLOCK(vp, 0);
NCPVODEBUG("rootvp.vrefcnt=%d\n",vrefcnt(vp));
return error;
bad:
if (nmp)
free(nmp, M_NWFSDATA);
if (handle)
ncp_conn_puthandle(handle, NULL, 0);
return error;
}
/*
* mp - path - addr in user space of mount point (ie /usr or whatever)
* data - addr in user space of mount params
*/
static int
nwfs_mount(struct mount *mp, char *path, caddr_t data, struct ucred *cred)
{
struct nwfs_args args; /* will hold data from mount request */
int error;
struct nwmount *nmp = NULL;
struct ncp_conn *conn = NULL;
struct ncp_handle *handle = NULL;
struct vnode *vp;
char *pc,*pe;
if (data == NULL) {
nwfs_printf("missing data argument\n");
return 1;
}
if (mp->mnt_flag & MNT_UPDATE) {
nwfs_printf("MNT_UPDATE not implemented");
return (EOPNOTSUPP);
}
error = copyin(data, (caddr_t)&args, sizeof(struct nwfs_args));
if (error)
return (error);
if (args.version != NWFS_VERSION) {
nwfs_printf("mount version mismatch: kernel=%d, mount=%d\n",NWFS_VERSION,args.version);
return (1);
}
error = ncp_conn_getbyref(args.connRef,curthread,cred,NCPM_EXECUTE,&conn);
if (error) {
nwfs_printf("invalid connection reference %d\n",args.connRef);
return (error);
}
error = ncp_conn_gethandle(conn, NULL, &handle);
if (error) {
nwfs_printf("can't get connection handle\n");
return (error);
}
ncp_conn_unlock(conn,curthread); /* we keep the ref */
mp->mnt_stat.f_iosize = conn->buffer_size;
/* We must malloc our own mount info */
nmp = kmalloc(sizeof(struct nwmount), M_NWFSDATA,
M_WAITOK | M_USE_RESERVE | M_ZERO);
mp->mnt_data = (qaddr_t)nmp;
nmp->connh = handle;
nmp->n_root = NULL;
nmp->n_id = nwfsid++;
nmp->m = args;
nmp->m.file_mode = (nmp->m.file_mode &
(S_IRWXU|S_IRWXG|S_IRWXO)) | S_IFREG;
nmp->m.dir_mode = (nmp->m.dir_mode &
(S_IRWXU|S_IRWXG|S_IRWXO)) | S_IFDIR;
if ((error = nwfs_initnls(nmp)) != 0) goto bad;
pc = mp->mnt_stat.f_mntfromname;
pe = pc+sizeof(mp->mnt_stat.f_mntfromname);
bzero(pc, MNAMELEN);
*(pc++) = '/';
pc = index(strncpy(pc, conn->li.server, pe-pc-2),0);
if (pc < pe-1) {
*(pc++) = ':';
pc=index(strncpy(pc, conn->li.user, pe-pc-2),0);
if (pc < pe-1) {
*(pc++) = '/';
strncpy(pc, nmp->m.mounted_vol, pe-pc-2);
}
}
/* protect against invalid mount points */
nmp->m.mount_point[sizeof(nmp->m.mount_point)-1] = '\0';
vfs_add_vnodeops(mp, &nwfs_vnode_vops, &mp->mnt_vn_norm_ops);
vfs_getnewfsid(mp);
error = nwfs_root(mp, &vp);
if (error)
goto bad;
/*
* Lose the lock but keep the ref.
*/
vn_unlock(vp);
NCPVODEBUG("rootvp.vrefcnt=%d\n",vp->v_sysref.refcnt);
return error;
bad:
if (nmp)
kfree(nmp, M_NWFSDATA);
if (handle)
ncp_conn_puthandle(handle, NULL, 0);
return error;
}
static int
ncp_conn_handler(struct proc *p, struct sncp_request_args *uap,
struct ncp_conn *conn, struct ncp_handle *hp)
{
int error=0, rqsize, subfn;
struct ucred *cred;
char *pdata;
cred = p->p_ucred;
error = copyin(&uap->ncpbuf->rqsize, &rqsize, sizeof(int));
if (error) return(error);
error = 0;
pdata = uap->ncpbuf->packet;
subfn = *(pdata++) & 0xff;
rqsize--;
switch (subfn) {
case NCP_CONN_READ: case NCP_CONN_WRITE: {
struct ncp_rw rwrq;
struct uio auio;
struct iovec iov;
if (rqsize != sizeof(rwrq)) return (EBADRPC);
error = copyin(pdata,&rwrq,rqsize);
if (error) return (error);
iov.iov_base = rwrq.nrw_base;
iov.iov_len = rwrq.nrw_cnt;
auio.uio_iov = &iov;
auio.uio_iovcnt = 1;
auio.uio_offset = rwrq.nrw_offset;
auio.uio_resid = rwrq.nrw_cnt;
auio.uio_segflg = UIO_USERSPACE;
auio.uio_rw = (subfn == NCP_CONN_READ) ? UIO_READ : UIO_WRITE;
auio.uio_procp = p;
error = ncp_conn_lock(conn,p,cred,NCPM_EXECUTE);
if (error) return(error);
if (subfn == NCP_CONN_READ)
error = ncp_read(conn, &rwrq.nrw_fh, &auio, cred);
else
error = ncp_write(conn, &rwrq.nrw_fh, &auio, cred);
rwrq.nrw_cnt -= auio.uio_resid;
ncp_conn_unlock(conn,p);
p->p_retval[0] = rwrq.nrw_cnt;
break;
} /* case int_read/write */
case NCP_CONN_SETFLAGS: {
u_int16_t mask, flags;
error = copyin(pdata,&mask, sizeof(mask));
if (error) return error;
pdata += sizeof(mask);
error = copyin(pdata,&flags,sizeof(flags));
if (error) return error;
error = ncp_conn_lock(conn,p,cred,NCPM_WRITE);
if (error) return error;
if (mask & NCPFL_PERMANENT) {
conn->flags &= ~NCPFL_PERMANENT;
conn->flags |= (flags & NCPFL_PERMANENT);
}
if (mask & NCPFL_PRIMARY) {
error = ncp_conn_setprimary(conn, flags & NCPFL_PRIMARY);
if (error) {
ncp_conn_unlock(conn,p);
break;
}
}
ncp_conn_unlock(conn,p);
break;
}
case NCP_CONN_LOGIN: {
struct ncp_conn_login la;
if (rqsize != sizeof(la)) return (EBADRPC);
if ((error = copyin(pdata,&la,rqsize)) != 0) break;
error = ncp_conn_lock(conn, p, cred, NCPM_EXECUTE | NCPM_WRITE);
if (error) return error;
error = ncp_login(conn, la.username, la.objtype, la.password, p, p->p_ucred);
ncp_conn_unlock(conn, p);
p->p_retval[0] = error;
break;
}
case NCP_CONN_GETINFO: {
struct ncp_conn_stat ncs;
int len = sizeof(ncs);
error = ncp_conn_lock(conn, p, p->p_ucred, NCPM_READ);
if (error) return error;
ncp_conn_getinfo(conn, &ncs);
copyout(&len, &uap->ncpbuf->rpsize, sizeof(int));
error = copyout(&ncs, &uap->ncpbuf->packet, len);
ncp_conn_unlock(conn, p);
break;
}
case NCP_CONN_GETUSER: {
int len;
error = ncp_conn_lock(conn, p, p->p_ucred, NCPM_READ);
if (error) return error;
len = (conn->li.user) ? strlen(conn->li.user) + 1 : 0;
copyout(&len, &uap->ncpbuf->rpsize, sizeof(int));
if (len) {
error = copyout(conn->li.user, &uap->ncpbuf->packet, len);
}
ncp_conn_unlock(conn, p);
break;
}
case NCP_CONN_CONN2REF: {
int len = sizeof(int);
error = ncp_conn_lock(conn, p, p->p_ucred, NCPM_READ);
if (error) return error;
copyout(&len, &uap->ncpbuf->rpsize, sizeof(int));
if (len) {
error = copyout(&conn->nc_id, &uap->ncpbuf->packet, len);
}
ncp_conn_unlock(conn, p);
break;
}
case NCP_CONN_FRAG: {
struct ncp_conn_frag nf;
if (rqsize != sizeof(nf)) return (EBADRPC);
if ((error = copyin(pdata, &nf, rqsize)) != 0) break;
error = ncp_conn_lock(conn, p, cred, NCPM_EXECUTE);
if (error) return error;
error = ncp_conn_frag_rq(conn, p, &nf);
ncp_conn_unlock(conn, p);
copyout(&nf, &pdata, sizeof(nf));
p->p_retval[0] = error;
break;
}
case NCP_CONN_DUP: {
struct ncp_handle *newhp;
int len = sizeof(NWCONN_HANDLE);
error = ncp_conn_lock(conn, p, cred, NCPM_READ);
if (error) break;
copyout(&len, &uap->ncpbuf->rpsize, len);
error = ncp_conn_gethandle(conn, p, &newhp);
if (!error)
error = copyout(&newhp->nh_id, uap->ncpbuf->packet, len);
ncp_conn_unlock(conn,p);
break;
}
case NCP_CONN_CONNCLOSE: {
error = ncp_conn_lock(conn, p, cred, NCPM_EXECUTE);
if (error) break;
ncp_conn_puthandle(hp, p, 0);
error = ncp_disconnect(conn);
if (error)
ncp_conn_unlock(conn, p);
break;
}
default:
error = EOPNOTSUPP;
}
return error;
}