797 lines
18 KiB
C
797 lines
18 KiB
C
/* $NetBSD: smb_trantcp.c,v 1.17 2004/09/17 14:11:25 skrll Exp $ */
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/*
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* Copyright (c) 2000-2001 Boris Popov
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Boris Popov.
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* 4. Neither the name of the author nor the names of any co-contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* FreeBSD: src/sys/netsmb/smb_trantcp.c,v 1.17 2003/02/19 05:47:38 imp Exp
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: smb_trantcp.c,v 1.17 2004/09/17 14:11:25 skrll Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/malloc.h>
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#include <sys/mbuf.h>
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#include <sys/proc.h>
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#include <sys/protosw.h>
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#include <sys/socket.h>
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#include <sys/socketvar.h>
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#include <sys/poll.h>
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#include <sys/uio.h>
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#include <sys/sysctl.h>
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#include <net/if.h>
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#include <net/route.h>
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#include <netinet/in.h>
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#include <netinet/tcp.h>
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#include <netsmb/mchain.h>
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#include <netsmb/netbios.h>
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#include <netsmb/smb.h>
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#include <netsmb/smb_conn.h>
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#include <netsmb/smb_tran.h>
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#include <netsmb/smb_trantcp.h>
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#include <netsmb/smb_subr.h>
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#define M_NBDATA M_PCB
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static int nb_tcpsndbuf = NB_SNDQ;
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static int nb_tcprcvbuf = NB_RCVQ;
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static const struct timeval nb_timo = { 15, 0 }; /* XXX sysctl? */
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#ifndef __NetBSD__
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SYSCTL_DECL(_net_smb);
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SYSCTL_INT(_net_smb, OID_AUTO, tcpsndbuf, CTLFLAG_RW, &nb_tcpsndbuf, 0, "");
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SYSCTL_INT(_net_smb, OID_AUTO, tcprcvbuf, CTLFLAG_RW, &nb_tcprcvbuf, 0, "");
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#endif
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#ifndef __NetBSD__
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#define nb_sosend(so,m,flags,p) (so)->so_proto->pr_usrreqs->pru_sosend( \
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so, NULL, 0, m, 0, flags, p)
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#else
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#define nb_sosend(so,m,flags,p) (*(so)->so_send)(so, NULL, (struct uio *)0, \
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m, (struct mbuf *)0, flags, p)
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#endif
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static int nbssn_recv(struct nbpcb *nbp, struct mbuf **mpp, int *lenp,
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u_int8_t *rpcodep, struct proc *p);
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static int smb_nbst_disconnect(struct smb_vc *vcp, struct proc *p);
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static int
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nb_setsockopt_int(struct socket *so, int level, int name, int val)
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{
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#ifdef __NetBSD__
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return sosetopt(so, level, name, NULL); /* XXX */
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#else
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struct sockopt sopt;
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bzero(&sopt, sizeof(sopt));
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sopt.sopt_level = level;
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sopt.sopt_name = name;
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sopt.sopt_val = &val;
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sopt.sopt_valsize = sizeof(val);
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return sosetopt(so, &sopt);
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#endif
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}
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static __inline int
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nb_poll(struct nbpcb *nbp, int events, struct proc *p)
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{
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#ifndef __NetBSD__
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return nbp->nbp_tso->so_proto->pr_usrreqs->pru_sopoll(nbp->nbp_tso,
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events, NULL, p);
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#else
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/* XXX this is exactly equal to soo_poll() */
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struct socket *so = nbp->nbp_tso;
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int revents = 0;
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int s = splsoftnet();
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if (events & (POLLIN | POLLRDNORM))
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if (soreadable(so))
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revents |= events & (POLLIN | POLLRDNORM);
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if (events & (POLLOUT | POLLWRNORM))
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if (sowritable(so))
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revents |= events & (POLLOUT | POLLWRNORM);
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if (events & (POLLPRI | POLLRDBAND))
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if (so->so_oobmark || (so->so_state & SS_RCVATMARK))
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revents |= events & (POLLPRI | POLLRDBAND);
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if (revents == 0) {
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if (events & (POLLIN | POLLPRI | POLLRDNORM | POLLRDBAND)) {
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selrecord(p, &so->so_rcv.sb_sel);
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so->so_rcv.sb_flags |= SB_SEL;
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}
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if (events & (POLLOUT | POLLWRNORM)) {
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selrecord(p, &so->so_snd.sb_sel);
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so->so_snd.sb_flags |= SB_SEL;
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}
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}
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splx(s);
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return (revents);
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#endif
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}
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static int
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nbssn_rselect(struct nbpcb *nbp, const struct timeval *tv, int events,
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struct proc *p)
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{
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struct timeval atv;
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extern int nselcoll;
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int ncoll;
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int timo, error;
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int s;
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struct lwp *l = curlwp;
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if (tv) {
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atv = *tv;
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if (itimerfix(&atv))
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return (EINVAL);
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s = splclock();
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timeradd(&atv, &time, &atv);
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splx(s);
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timo = hzto(&atv);
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if (timo <= 0)
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return (EWOULDBLOCK);
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} else
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timo = 0;
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retry:
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ncoll = nselcoll;
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l->l_flag |= L_SELECT;
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error = nb_poll(nbp, events, p);
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if (error) {
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error = 0;
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goto done;
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}
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if (tv) {
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/*
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* We have to recalculate the timeout on every retry.
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*/
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timo = hzto(&atv);
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if (timo <= 0) {
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error = EWOULDBLOCK;
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goto done;
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}
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}
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s = splsched();
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if ((l->l_flag & L_SELECT) == 0 || nselcoll != ncoll) {
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splx(s);
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goto retry;
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}
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l->l_flag &= ~L_SELECT;
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error = tsleep((caddr_t)&selwait, PSOCK, "smbsel", timo);
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splx(s);
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if (error == 0)
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goto retry;
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done:
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l->l_flag &= ~L_SELECT;
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/* select is not restarted after signals... */
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if (error == ERESTART)
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error = 0;
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return (error);
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}
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static int
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nb_intr(struct nbpcb *nbp, struct proc *p)
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{
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return 0;
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}
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static void
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nb_upcall(struct socket *so, caddr_t arg, int waitflag)
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{
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struct nbpcb *nbp = (void *)arg;
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if (arg == NULL || nbp->nbp_selectid == NULL)
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return;
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wakeup(nbp->nbp_selectid);
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}
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static int
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nb_sethdr(struct mbuf *m, u_int8_t type, u_int32_t len)
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{
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u_int32_t *p = mtod(m, u_int32_t *);
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*p = htonl((len & 0x1FFFF) | (type << 24));
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return 0;
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}
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static int
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nb_put_name(struct mbchain *mbp, struct sockaddr_nb *snb)
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{
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int error;
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u_char seglen, *cp;
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cp = snb->snb_name;
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if (*cp == 0)
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return EINVAL;
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NBDEBUG("[%s]\n", cp);
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for (;;) {
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seglen = (*cp) + 1;
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error = mb_put_mem(mbp, cp, seglen, MB_MSYSTEM);
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if (error)
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return error;
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if (seglen == 1)
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break;
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cp += seglen;
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}
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return 0;
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}
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static int
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nb_connect_in(struct nbpcb *nbp, struct sockaddr_in *to, struct proc *p)
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{
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struct socket *so;
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int error, s;
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#ifdef __NetBSD__
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struct mbuf *m;
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#endif
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error = socreate(AF_INET, &so, SOCK_STREAM, IPPROTO_TCP, p);
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if (error)
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return error;
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nbp->nbp_tso = so;
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so->so_upcallarg = (caddr_t)nbp;
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so->so_upcall = nb_upcall;
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so->so_rcv.sb_flags |= SB_UPCALL;
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so->so_rcv.sb_timeo = NB_SNDTIMEO;
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so->so_snd.sb_timeo = NB_RCVTIMEO;
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error = soreserve(so, nb_tcpsndbuf, nb_tcprcvbuf);
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if (error)
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goto bad;
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nb_setsockopt_int(so, SOL_SOCKET, SO_KEEPALIVE, 1);
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nb_setsockopt_int(so, IPPROTO_TCP, TCP_NODELAY, 1);
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so->so_rcv.sb_flags &= ~SB_NOINTR;
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so->so_snd.sb_flags &= ~SB_NOINTR;
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#ifndef __NetBSD__
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error = soconnect(so, (struct sockaddr*)to, p);
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#else
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m = m_get(M_WAIT, MT_SONAME);
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*mtod(m, struct sockaddr *) = *(struct sockaddr *)to;
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m->m_len = sizeof(struct sockaddr);
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error = soconnect(so, m, p);
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m_free(m);
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#endif
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if (error)
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goto bad;
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s = splnet();
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while ((so->so_state & SS_ISCONNECTING) && so->so_error == 0) {
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tsleep(&so->so_timeo, PSOCK, "smbcon", 2 * hz);
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if ((so->so_state & SS_ISCONNECTING) && so->so_error == 0 &&
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(error = nb_intr(nbp, p)) != 0) {
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so->so_state &= ~SS_ISCONNECTING;
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splx(s);
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goto bad;
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}
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}
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if (so->so_error) {
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error = so->so_error;
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so->so_error = 0;
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splx(s);
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goto bad;
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}
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splx(s);
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return 0;
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bad:
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smb_nbst_disconnect(nbp->nbp_vc, p);
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return error;
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}
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static int
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nbssn_rq_request(struct nbpcb *nbp, struct proc *p)
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{
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struct mbchain mb, *mbp = &mb;
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struct mdchain md, *mdp = &md;
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struct mbuf *m0;
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struct sockaddr_in sin;
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u_short port;
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u_int8_t rpcode;
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int error, rplen;
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error = mb_init(mbp);
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if (error)
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return error;
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mb_put_uint32le(mbp, 0);
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(void) nb_put_name(mbp, nbp->nbp_paddr);
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(void) nb_put_name(mbp, nbp->nbp_laddr);
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nb_sethdr(mbp->mb_top, NB_SSN_REQUEST, mb_fixhdr(mbp) - 4);
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error = nb_sosend(nbp->nbp_tso, mbp->mb_top, 0, p);
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if (!error) {
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nbp->nbp_state = NBST_RQSENT;
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}
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mb_detach(mbp);
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mb_done(mbp);
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if (error)
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return error;
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error = nbssn_rselect(nbp, &nb_timo, POLLIN, p);
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if (error == EWOULDBLOCK) { /* Timeout */
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NBDEBUG("initial request timeout\n");
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return ETIMEDOUT;
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}
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if (error) /* restart or interrupt */
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return error;
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error = nbssn_recv(nbp, &m0, &rplen, &rpcode, p);
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if (error) {
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NBDEBUG("recv() error %d\n", error);
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return error;
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}
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/*
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* Process NETBIOS reply
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*/
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if (m0)
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md_initm(mdp, m0);
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error = 0;
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do {
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if (rpcode == NB_SSN_POSRESP) {
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nbp->nbp_state = NBST_SESSION;
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nbp->nbp_flags |= NBF_CONNECTED;
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break;
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}
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if (rpcode != NB_SSN_RTGRESP) {
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error = ECONNABORTED;
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break;
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}
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if (rplen != 6) {
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error = ECONNABORTED;
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break;
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}
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md_get_mem(mdp, (caddr_t)&sin.sin_addr, 4, MB_MSYSTEM);
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md_get_uint16(mdp, &port);
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sin.sin_port = port;
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nbp->nbp_state = NBST_RETARGET;
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smb_nbst_disconnect(nbp->nbp_vc, p);
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error = nb_connect_in(nbp, &sin, p);
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if (!error)
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error = nbssn_rq_request(nbp, p);
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if (error) {
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smb_nbst_disconnect(nbp->nbp_vc, p);
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break;
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}
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} while(0);
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if (m0)
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md_done(mdp);
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return error;
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}
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static int
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nbssn_recvhdr(struct nbpcb *nbp, int *lenp,
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u_int8_t *rpcodep, int flags, struct proc *p)
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{
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struct socket *so = nbp->nbp_tso;
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struct uio auio;
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struct iovec aio;
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u_int32_t len;
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int error;
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aio.iov_base = (caddr_t)&len;
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aio.iov_len = sizeof(len);
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auio.uio_iov = &aio;
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auio.uio_iovcnt = 1;
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auio.uio_segflg = UIO_SYSSPACE;
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auio.uio_rw = UIO_READ;
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auio.uio_offset = 0;
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auio.uio_resid = sizeof(len);
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auio.uio_procp = NULL;
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#ifndef __NetBSD__
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error = so->so_proto->pr_usrreqs->pru_soreceive
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(so, (struct sockaddr **)NULL, &auio,
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(struct mbuf **)NULL, (struct mbuf **)NULL, &flags);
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#else
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error = (*so->so_receive)(so, (struct mbuf **)0, &auio,
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(struct mbuf **)NULL,
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(struct mbuf **)NULL, &flags);
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#endif
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if (error)
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return error;
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if (auio.uio_resid > 0) {
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SMBSDEBUG("short reply\n");
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return EPIPE;
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}
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len = ntohl(len);
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*rpcodep = (len >> 24) & 0xFF;
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len &= 0x1ffff;
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if (len > SMB_MAXPKTLEN) {
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SMBERROR("packet too long (%d)\n", len);
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return EFBIG;
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}
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*lenp = len;
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return 0;
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}
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static int
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nbssn_recv(struct nbpcb *nbp, struct mbuf **mpp, int *lenp,
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u_int8_t *rpcodep, struct proc *p)
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{
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struct socket *so = nbp->nbp_tso;
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struct uio auio;
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struct mbuf *m, *tm, *im;
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u_int8_t rpcode;
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int len, resid;
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int error, rcvflg;
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if (so == NULL)
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return ENOTCONN;
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if (mpp)
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*mpp = NULL;
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m = NULL;
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for(;;) {
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/*
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* Poll for a response header.
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* If we don't have one waiting, return.
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*/
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error = nbssn_recvhdr(nbp, &len, &rpcode, MSG_DONTWAIT, p);
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if (so->so_state &
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(SS_ISDISCONNECTING | SS_ISDISCONNECTED | SS_CANTRCVMORE)) {
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nbp->nbp_state = NBST_CLOSED;
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NBDEBUG("session closed by peer\n");
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return ECONNRESET;
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}
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if (error)
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return error;
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if (len == 0 && nbp->nbp_state != NBST_SESSION)
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break;
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/* no data, try again */
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if (rpcode == NB_SSN_KEEPALIVE)
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continue;
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/*
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* Loop, blocking, for data following the response header.
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*
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* Note that we can't simply block here with MSG_WAITALL for the
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* entire response size, as it may be larger than the TCP
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* slow-start window that the sender employs. This will result
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* in the sender stalling until the delayed ACK is sent, then
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* resuming slow-start, resulting in very poor performance.
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*
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* Instead, we never request more than NB_SORECEIVE_CHUNK
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* bytes at a time, resulting in an ack being pushed by
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* the TCP code at the completion of each call.
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*/
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resid = len;
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while (resid > 0) {
|
|
tm = NULL;
|
|
rcvflg = MSG_WAITALL;
|
|
bzero(&auio, sizeof(auio));
|
|
auio.uio_resid = min(resid, NB_SORECEIVE_CHUNK);
|
|
auio.uio_procp = p;
|
|
resid -= auio.uio_resid;
|
|
/*
|
|
* Spin until we have collected everything in
|
|
* this chunk.
|
|
*/
|
|
do {
|
|
rcvflg = MSG_WAITALL;
|
|
#ifdef __NetBSD__
|
|
error = (*so->so_receive)(so, (struct mbuf **)0,
|
|
&auio, &tm, (struct mbuf **)NULL,
|
|
&rcvflg);
|
|
#else
|
|
error = so->so_proto->pr_usrreqs->pru_soreceive
|
|
(so, (struct sockaddr **)NULL,
|
|
&auio, &tm, (struct mbuf **)NULL, &rcvflg);
|
|
#endif
|
|
} while (error == EWOULDBLOCK || error == EINTR ||
|
|
error == ERESTART);
|
|
if (error)
|
|
goto out;
|
|
/* short return guarantees unhappiness */
|
|
if (auio.uio_resid > 0) {
|
|
SMBERROR("packet is shorter than expected\n");
|
|
error = EPIPE;
|
|
goto out;
|
|
}
|
|
/* append received chunk to previous chunk(s) */
|
|
if (m == NULL) {
|
|
m = tm;
|
|
} else {
|
|
/*
|
|
* Just glue the new chain on the end.
|
|
* Consumer will pullup as required.
|
|
*/
|
|
for (im = m; im->m_next != NULL; im = im->m_next)
|
|
;
|
|
im->m_next = tm;
|
|
}
|
|
}
|
|
/* got a session/message packet? */
|
|
if (nbp->nbp_state == NBST_SESSION &&
|
|
rpcode == NB_SSN_MESSAGE)
|
|
break;
|
|
/* drop packet and try for another */
|
|
NBDEBUG("non-session packet %x\n", rpcode);
|
|
if (m) {
|
|
m_freem(m);
|
|
m = NULL;
|
|
}
|
|
}
|
|
|
|
out:
|
|
if (error) {
|
|
if (m)
|
|
m_freem(m);
|
|
return error;
|
|
}
|
|
if (mpp)
|
|
*mpp = m;
|
|
else
|
|
m_freem(m);
|
|
*lenp = len;
|
|
*rpcodep = rpcode;
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* SMB transport interface
|
|
*/
|
|
static int
|
|
smb_nbst_create(struct smb_vc *vcp, struct proc *p)
|
|
{
|
|
struct nbpcb *nbp;
|
|
|
|
MALLOC(nbp, struct nbpcb *, sizeof *nbp, M_NBDATA, M_WAITOK);
|
|
memset(nbp, 0, sizeof *nbp);
|
|
nbp->nbp_state = NBST_CLOSED;
|
|
nbp->nbp_vc = vcp;
|
|
vcp->vc_tdata = nbp;
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
smb_nbst_done(struct smb_vc *vcp, struct proc *p)
|
|
{
|
|
struct nbpcb *nbp = vcp->vc_tdata;
|
|
|
|
if (nbp == NULL)
|
|
return ENOTCONN;
|
|
smb_nbst_disconnect(vcp, p);
|
|
if (nbp->nbp_laddr)
|
|
free(nbp->nbp_laddr, M_SONAME);
|
|
if (nbp->nbp_paddr)
|
|
free(nbp->nbp_paddr, M_SONAME);
|
|
free(nbp, M_NBDATA);
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
smb_nbst_bind(struct smb_vc *vcp, struct sockaddr *sap, struct proc *p)
|
|
{
|
|
struct nbpcb *nbp = vcp->vc_tdata;
|
|
struct sockaddr_nb *snb;
|
|
int error, slen;
|
|
|
|
NBDEBUG("\n");
|
|
error = EINVAL;
|
|
do {
|
|
if (nbp->nbp_flags & NBF_LOCADDR)
|
|
break;
|
|
/*
|
|
* It is possible to create NETBIOS name in the kernel,
|
|
* but nothing prevents us to do it in the user space.
|
|
*/
|
|
if (sap == NULL)
|
|
break;
|
|
slen = sap->sa_len;
|
|
if (slen < NB_MINSALEN)
|
|
break;
|
|
snb = (struct sockaddr_nb*)dup_sockaddr(sap, 1);
|
|
if (snb == NULL) {
|
|
error = ENOMEM;
|
|
break;
|
|
}
|
|
nbp->nbp_laddr = snb;
|
|
nbp->nbp_flags |= NBF_LOCADDR;
|
|
error = 0;
|
|
} while(0);
|
|
return error;
|
|
}
|
|
|
|
static int
|
|
smb_nbst_connect(struct smb_vc *vcp, struct sockaddr *sap, struct proc *p)
|
|
{
|
|
struct nbpcb *nbp = vcp->vc_tdata;
|
|
struct sockaddr_in sin;
|
|
struct sockaddr_nb *snb;
|
|
int error, slen;
|
|
|
|
NBDEBUG("\n");
|
|
if (nbp->nbp_tso != NULL)
|
|
return EISCONN;
|
|
if (nbp->nbp_laddr == NULL)
|
|
return EINVAL;
|
|
slen = sap->sa_len;
|
|
if (slen < NB_MINSALEN)
|
|
return EINVAL;
|
|
if (nbp->nbp_paddr) {
|
|
free(nbp->nbp_paddr, M_SONAME);
|
|
nbp->nbp_paddr = NULL;
|
|
}
|
|
snb = (struct sockaddr_nb*)dup_sockaddr(sap, 1);
|
|
if (snb == NULL)
|
|
return ENOMEM;
|
|
nbp->nbp_paddr = snb;
|
|
sin = snb->snb_addrin;
|
|
error = nb_connect_in(nbp, &sin, p);
|
|
if (error)
|
|
return error;
|
|
error = nbssn_rq_request(nbp, p);
|
|
if (error)
|
|
smb_nbst_disconnect(vcp, p);
|
|
return error;
|
|
}
|
|
|
|
static int
|
|
smb_nbst_disconnect(struct smb_vc *vcp, struct proc *p)
|
|
{
|
|
struct nbpcb *nbp = vcp->vc_tdata;
|
|
struct socket *so;
|
|
|
|
if (nbp == NULL || nbp->nbp_tso == NULL)
|
|
return ENOTCONN;
|
|
if ((so = nbp->nbp_tso) != NULL) {
|
|
nbp->nbp_flags &= ~NBF_CONNECTED;
|
|
nbp->nbp_tso = (struct socket *)NULL;
|
|
soshutdown(so, 2);
|
|
soclose(so);
|
|
}
|
|
if (nbp->nbp_state != NBST_RETARGET) {
|
|
nbp->nbp_state = NBST_CLOSED;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
smb_nbst_send(struct smb_vc *vcp, struct mbuf *m0, struct proc *p)
|
|
{
|
|
struct nbpcb *nbp = vcp->vc_tdata;
|
|
int error;
|
|
|
|
if (nbp->nbp_state != NBST_SESSION) {
|
|
error = ENOTCONN;
|
|
goto abort;
|
|
}
|
|
M_PREPEND(m0, 4, M_WAITOK);
|
|
if (m0 == NULL)
|
|
return ENOBUFS;
|
|
nb_sethdr(m0, NB_SSN_MESSAGE, m_fixhdr(m0) - 4);
|
|
error = nb_sosend(nbp->nbp_tso, m0, 0, p);
|
|
return error;
|
|
abort:
|
|
if (m0)
|
|
m_freem(m0);
|
|
return error;
|
|
}
|
|
|
|
|
|
static int
|
|
smb_nbst_recv(struct smb_vc *vcp, struct mbuf **mpp, struct proc *p)
|
|
{
|
|
struct nbpcb *nbp = vcp->vc_tdata;
|
|
u_int8_t rpcode;
|
|
int error, rplen;
|
|
|
|
nbp->nbp_flags |= NBF_RECVLOCK;
|
|
error = nbssn_recv(nbp, mpp, &rplen, &rpcode, p);
|
|
nbp->nbp_flags &= ~NBF_RECVLOCK;
|
|
return error;
|
|
}
|
|
|
|
static void
|
|
smb_nbst_timo(struct smb_vc *vcp)
|
|
{
|
|
|
|
/* Nothing */
|
|
}
|
|
|
|
static void
|
|
smb_nbst_intr(struct smb_vc *vcp)
|
|
{
|
|
struct nbpcb *nbp = vcp->vc_tdata;
|
|
|
|
if (nbp == NULL || nbp->nbp_tso == NULL)
|
|
return;
|
|
sorwakeup(nbp->nbp_tso);
|
|
sowwakeup(nbp->nbp_tso);
|
|
}
|
|
|
|
static int
|
|
smb_nbst_getparam(struct smb_vc *vcp, int param, void *data)
|
|
{
|
|
switch (param) {
|
|
case SMBTP_SNDSZ:
|
|
*(int*)data = nb_tcpsndbuf;
|
|
break;
|
|
case SMBTP_RCVSZ:
|
|
*(int*)data = nb_tcprcvbuf;
|
|
break;
|
|
case SMBTP_TIMEOUT:
|
|
*(struct timeval*)data = nb_timo;
|
|
break;
|
|
default:
|
|
return EINVAL;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
smb_nbst_setparam(struct smb_vc *vcp, int param, void *data)
|
|
{
|
|
struct nbpcb *nbp = vcp->vc_tdata;
|
|
|
|
switch (param) {
|
|
case SMBTP_SELECTID:
|
|
nbp->nbp_selectid = data;
|
|
break;
|
|
default:
|
|
return EINVAL;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Check for fatal errors
|
|
*/
|
|
static int
|
|
smb_nbst_fatal(struct smb_vc *vcp, int error)
|
|
{
|
|
switch (error) {
|
|
case ENOTCONN:
|
|
case ENETRESET:
|
|
case ECONNABORTED:
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
struct smb_tran_desc smb_tran_nbtcp_desc = {
|
|
SMBT_NBTCP,
|
|
smb_nbst_create, smb_nbst_done,
|
|
smb_nbst_bind, smb_nbst_connect, smb_nbst_disconnect,
|
|
smb_nbst_send, smb_nbst_recv,
|
|
smb_nbst_timo, smb_nbst_intr,
|
|
smb_nbst_getparam, smb_nbst_setparam,
|
|
smb_nbst_fatal
|
|
};
|
|
|