new native mode ATM protocol layer. experimental code for playing
with raw aal0 and aal5 virtual circuits.
This commit is contained in:
parent
e13b96dbf2
commit
7a5247c228
458
sys/netnatm/natm.c
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458
sys/netnatm/natm.c
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@ -0,0 +1,458 @@
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/* $NetBSD: natm.c,v 1.1 1996/07/04 03:20:11 chuck Exp $ */
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/*
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*
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* Copyright (c) 1996 Charles D. Cranor and Washington University.
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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 Charles D. Cranor and
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* Washington University.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* natm.c: native mode ATM access (both aal0 and aal5).
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*/
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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/domain.h>
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#include <sys/ioctl.h>
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#include <sys/proc.h>
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#include <sys/protosw.h>
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#include <sys/mbuf.h>
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#include <sys/socket.h>
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#include <sys/socketvar.h>
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#include <net/if.h>
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#include <net/if_atm.h>
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#include <net/netisr.h>
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#include <net/radix.h>
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#include <net/route.h>
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#include <netinet/in.h>
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#include <netnatm/natm.h>
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u_long natm5_sendspace = 16*1024;
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u_long natm5_recvspace = 16*1024;
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u_long natm0_sendspace = 16*1024;
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u_long natm0_recvspace = 16*1024;
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/*
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* user requests
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*/
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#if defined(__NetBSD__) || defined(__OpenBSD__)
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int natm_usrreq(so, req, m, nam, control, p)
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#elif defined(__FreeBSD__)
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int natm_usrreq(so, req, m, nam, control)
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#endif
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struct socket *so;
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int req;
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struct mbuf *m, *nam, *control;
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#if defined(__NetBSD__) || defined(__OpenBSD__)
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struct proc *p;
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#endif
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{
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int error = 0, s, s2;
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struct natmpcb *npcb;
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struct sockaddr_natm *snatm;
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struct atm_pseudoioctl api;
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struct atm_pseudohdr *aph;
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struct atm_rawioctl ario;
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struct ifnet *ifp;
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int proto = so->so_proto->pr_protocol;
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s = SPLSOFTNET();
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npcb = (struct natmpcb *) so->so_pcb;
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if (npcb == NULL && req != PRU_ATTACH) {
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error = EINVAL;
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goto done;
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}
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switch (req) {
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case PRU_ATTACH: /* attach protocol to up */
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if (npcb) {
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error = EISCONN;
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break;
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}
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if (so->so_snd.sb_hiwat == 0 || so->so_rcv.sb_hiwat == 0) {
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if (proto == PROTO_NATMAAL5)
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error = soreserve(so, natm5_sendspace, natm5_recvspace);
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else
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error = soreserve(so, natm0_sendspace, natm0_recvspace);
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if (error)
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break;
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}
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so->so_pcb = (caddr_t) (npcb = npcb_alloc(M_WAITOK));
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npcb->npcb_socket = so;
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break;
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case PRU_DETACH: /* detach protocol from up */
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/*
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* we turn on 'drain' *before* we sofree.
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*/
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npcb_free(npcb, NPCB_DESTROY); /* drain */
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so->so_pcb = NULL;
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sofree(so);
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break;
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case PRU_CONNECT: /* establish connection to peer */
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/*
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* validate nam and npcb
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*/
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if (nam->m_len != sizeof(*snatm)) {
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error = EINVAL;
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break;
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}
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snatm = mtod(nam, struct sockaddr_natm *);
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if (snatm->snatm_len != sizeof(*snatm) ||
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(npcb->npcb_flags & NPCB_FREE) == 0) {
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error = EINVAL;
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break;
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}
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if (snatm->snatm_family != AF_NATM) {
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error = EAFNOSUPPORT;
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break;
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}
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snatm->snatm_if[IFNAMSIZ-1] = '\0'; /* XXX ensure null termination
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since ifunit() uses strcmp */
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/*
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* convert interface string to ifp, validate.
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*/
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ifp = ifunit(snatm->snatm_if);
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if (ifp == NULL || (ifp->if_flags & IFF_RUNNING) == 0) {
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error = ENXIO;
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break;
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}
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if (ifp->if_output != atm_output) {
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error = EAFNOSUPPORT;
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break;
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}
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/*
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* register us with the NATM PCB layer
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*/
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if (npcb_add(npcb, ifp, snatm->snatm_vci, snatm->snatm_vpi) != npcb) {
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error = EADDRINUSE;
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break;
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}
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/*
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* enable rx
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*/
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ATM_PH_FLAGS(&api.aph) = (proto == PROTO_NATMAAL5) ? ATM_PH_AAL5 : 0;
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ATM_PH_VPI(&api.aph) = npcb->npcb_vpi;
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ATM_PH_SETVCI(&api.aph, npcb->npcb_vci);
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api.rxhand = npcb;
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s2 = splimp();
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if (ifp->if_ioctl == NULL ||
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ifp->if_ioctl(ifp, SIOCATMENA, (caddr_t) &api) != 0) {
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splx(s2);
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npcb_free(npcb, NPCB_REMOVE);
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error = EIO;
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break;
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}
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splx(s2);
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soisconnected(so);
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break;
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case PRU_DISCONNECT: /* disconnect from peer */
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if ((npcb->npcb_flags & NPCB_CONNECTED) == 0) {
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printf("natm: disconnected check\n");
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error = EIO;
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break;
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}
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ifp = npcb->npcb_ifp;
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/*
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* disable rx
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*/
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ATM_PH_FLAGS(&api.aph) = ATM_PH_AAL5;
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ATM_PH_VPI(&api.aph) = npcb->npcb_vpi;
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ATM_PH_SETVCI(&api.aph, npcb->npcb_vci);
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api.rxhand = npcb;
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s2 = splimp();
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if (ifp->if_ioctl != NULL)
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ifp->if_ioctl(ifp, SIOCATMDIS, (caddr_t) &api);
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splx(s);
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npcb_free(npcb, NPCB_REMOVE);
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soisdisconnected(so);
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break;
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case PRU_SHUTDOWN: /* won't send any more data */
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socantsendmore(so);
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break;
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case PRU_SEND: /* send this data */
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if (control && control->m_len) {
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m_freem(control);
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m_freem(m);
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error = EINVAL;
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break;
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}
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/*
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* send the data. we must put an atm_pseudohdr on first
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*/
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M_PREPEND(m, sizeof(*aph), M_WAITOK);
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if (m == NULL) {
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error = ENOBUFS;
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break;
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}
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aph = mtod(m, struct atm_pseudohdr *);
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ATM_PH_VPI(aph) = npcb->npcb_vpi;
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ATM_PH_SETVCI(aph, npcb->npcb_vci);
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ATM_PH_FLAGS(aph) = (proto == PROTO_NATMAAL5) ? ATM_PH_AAL5 : 0;
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error = atm_output(npcb->npcb_ifp, m, NULL, NULL);
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break;
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case PRU_SENSE: /* return status into m */
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/* return zero? */
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break;
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case PRU_PEERADDR: /* fetch peer's address */
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snatm = mtod(nam, struct sockaddr_natm *);
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bzero(snatm, sizeof(*snatm));
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nam->m_len = snatm->snatm_len = sizeof(*snatm);
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snatm->snatm_family = AF_NATM;
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#if defined(__NetBSD__) || defined(__OpenBSD__)
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bcopy(npcb->npcb_ifp->if_xname, snatm->snatm_if, sizeof(snatm->snatm_if));
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#elif defined(__FreeBSD__)
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sprintf(snatm->snatm_if, "%s%d", npcb->npcb_ifp->if_name,
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npcb->npcb_ifp->if_unit);
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#endif
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snatm->snatm_vci = npcb->npcb_vci;
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snatm->snatm_vpi = npcb->npcb_vpi;
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break;
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case PRU_CONTROL: /* control operations on protocol */
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/*
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* raw atm ioctl. comes in as a SIOCRAWATM. we convert it to
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* SIOCXRAWATM and pass it to the driver.
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*/
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if ((u_long)m == SIOCRAWATM) {
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if (npcb->npcb_ifp == NULL) {
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error = ENOTCONN;
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break;
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}
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ario.npcb = npcb;
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ario.rawvalue = *((int *)nam);
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error = npcb->npcb_ifp->if_ioctl(npcb->npcb_ifp,
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SIOCXRAWATM, (caddr_t) &ario);
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if (!error) {
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if (ario.rawvalue)
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npcb->npcb_flags |= NPCB_RAW;
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else
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npcb->npcb_flags &= ~(NPCB_RAW);
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}
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break;
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}
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error = EOPNOTSUPP;
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break;
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case PRU_BIND: /* bind socket to address */
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case PRU_LISTEN: /* listen for connection */
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case PRU_ACCEPT: /* accept connection from peer */
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case PRU_CONNECT2: /* connect two sockets */
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case PRU_ABORT: /* abort (fast DISCONNECT, DETATCH) */
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/* (only happens if LISTEN socket) */
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case PRU_RCVD: /* have taken data; more room now */
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case PRU_FASTTIMO: /* 200ms timeout */
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case PRU_SLOWTIMO: /* 500ms timeout */
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case PRU_RCVOOB: /* retrieve out of band data */
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case PRU_SENDOOB: /* send out of band data */
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case PRU_PROTORCV: /* receive from below */
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case PRU_PROTOSEND: /* send to below */
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case PRU_SOCKADDR: /* fetch socket's address */
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#ifdef DIAGNOSTIC
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printf("natm: PRU #%d unsupported\n", req);
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#endif
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error = EOPNOTSUPP;
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break;
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default: panic("natm usrreq");
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}
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done:
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splx(s);
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return(error);
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}
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/*
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* natmintr: splsoftnet interrupt
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*
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* note: we expect a socket pointer in rcvif rather than an interface
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* pointer. we can get the interface pointer from the so's PCB if
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* we really need it.
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*/
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void
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natmintr()
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{
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int s;
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struct mbuf *m;
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struct socket *so;
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struct natmpcb *npcb;
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next:
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s = splimp();
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IF_DEQUEUE(&natmintrq, m);
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splx(s);
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if (m == NULL)
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return;
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#ifdef DIAGNOSTIC
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if ((m->m_flags & M_PKTHDR) == 0)
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panic("ipintr no HDR");
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#endif
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npcb = (struct natmpcb *) m->m_pkthdr.rcvif; /* XXX: overloaded */
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so = npcb->npcb_socket;
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s = splimp(); /* could have atm devs @ different levels */
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npcb->npcb_inq--;
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splx(s);
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if (npcb->npcb_flags & NPCB_DRAIN) {
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m_freem(m);
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if (npcb->npcb_inq == 0)
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FREE(npcb, M_PCB); /* done! */
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goto next;
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}
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if (npcb->npcb_flags & NPCB_FREE) {
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m_freem(m); /* drop */
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goto next;
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}
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#ifdef NEED_TO_RESTORE_IFP
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m->m_pkthdr.rcvif = npcb->npcb_ifp;
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#else
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#ifdef DIAGNOSTIC
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m->m_pkthdr.rcvif = NULL; /* null it out to be safe */
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#endif
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#endif
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if (sbspace(&so->so_rcv) > m->m_pkthdr.len ||
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((npcb->npcb_flags & NPCB_RAW) != 0 && so->so_rcv.sb_cc < NPCB_RAWCC) ) {
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#ifdef NATM_STAT
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natm_sookcnt++;
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natm_sookbytes += m->m_pkthdr.len;
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#endif
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sbappend(&so->so_rcv, m);
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sorwakeup(so);
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} else {
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#ifdef NATM_STAT
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natm_sodropcnt++;
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natm_sodropbytes += m->m_pkthdr.len;
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#endif
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m_freem(m);
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}
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||||
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goto next;
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}
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#if defined(__FreeBSD__)
|
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NETISR_SET(NETISR_NATM, natmintr);
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#endif
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|
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/*
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* natm0_sysctl: not used, but here in case we want to add something
|
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* later...
|
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*/
|
||||
|
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int natm0_sysctl(name, namelen, oldp, oldlenp, newp, newlen)
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|
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int *name;
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u_int namelen;
|
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void *oldp;
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size_t *oldlenp;
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void *newp;
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size_t newlen;
|
||||
|
||||
{
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||||
/* All sysctl names at this level are terminal. */
|
||||
if (namelen != 1)
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return (ENOTDIR);
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return (ENOPROTOOPT);
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}
|
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|
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/*
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* natm5_sysctl: not used, but here in case we want to add something
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* later...
|
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*/
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|
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int natm5_sysctl(name, namelen, oldp, oldlenp, newp, newlen)
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|
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int *name;
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u_int namelen;
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void *oldp;
|
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size_t *oldlenp;
|
||||
void *newp;
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size_t newlen;
|
||||
|
||||
{
|
||||
/* All sysctl names at this level are terminal. */
|
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if (namelen != 1)
|
||||
return (ENOTDIR);
|
||||
return (ENOPROTOOPT);
|
||||
}
|
152
sys/netnatm/natm.h
Normal file
152
sys/netnatm/natm.h
Normal file
@ -0,0 +1,152 @@
|
||||
/* $NetBSD: natm.h,v 1.1 1996/07/04 03:20:12 chuck Exp $ */
|
||||
|
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/*
|
||||
*
|
||||
* Copyright (c) 1996 Charles D. Cranor and Washington University.
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. All advertising materials mentioning features or use of this software
|
||||
* must display the following acknowledgement:
|
||||
* This product includes software developed by Charles D. Cranor and
|
||||
* Washington University.
|
||||
* 4. The name of the author may not be used to endorse or promote products
|
||||
* derived from this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
||||
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
||||
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
||||
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
||||
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
||||
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
/*
|
||||
* natm.h: native mode atm
|
||||
*/
|
||||
|
||||
|
||||
/*
|
||||
* supported protocols
|
||||
*/
|
||||
|
||||
#define PROTO_NATMAAL0 1
|
||||
#define PROTO_NATMAAL5 2
|
||||
|
||||
/*
|
||||
* sockaddr_natm
|
||||
*/
|
||||
|
||||
struct sockaddr_natm {
|
||||
u_int8_t snatm_len; /* length */
|
||||
u_int8_t snatm_family; /* AF_NATM */
|
||||
char snatm_if[IFNAMSIZ]; /* interface name */
|
||||
u_int16_t snatm_vci; /* vci */
|
||||
u_int8_t snatm_vpi; /* vpi */
|
||||
};
|
||||
|
||||
|
||||
#if defined(__FreeBSD__) && defined(KERNEL)
|
||||
|
||||
#ifndef _KERNEL
|
||||
#define _KERNEL
|
||||
#endif
|
||||
|
||||
#define SPLSOFTNET() splnet()
|
||||
|
||||
#elif defined(__NetBSD__) || defined(__OpenBSD__)
|
||||
|
||||
#define SPLSOFTNET() splsoftnet()
|
||||
|
||||
#endif
|
||||
|
||||
#ifdef _KERNEL
|
||||
|
||||
/*
|
||||
* natm protocol control block
|
||||
*/
|
||||
|
||||
struct natmpcb {
|
||||
LIST_ENTRY(natmpcb) pcblist; /* list pointers */
|
||||
u_int npcb_inq; /* # of our pkts in proto q */
|
||||
struct socket *npcb_socket; /* backpointer to socket */
|
||||
struct ifnet *npcb_ifp; /* pointer to hardware */
|
||||
struct in_addr ipaddr; /* remote IP address, if APCB_IP */
|
||||
u_int16_t npcb_vci; /* VCI */
|
||||
u_int8_t npcb_vpi; /* VPI */
|
||||
u_int8_t npcb_flags; /* flags */
|
||||
};
|
||||
|
||||
/* flags */
|
||||
#define NPCB_FREE 0x01 /* free (not on any list) */
|
||||
#define NPCB_CONNECTED 0x02 /* connected */
|
||||
#define NPCB_IP 0x04 /* used by IP */
|
||||
#define NPCB_DRAIN 0x08 /* destory as soon as inq == 0 */
|
||||
#define NPCB_RAW 0x10 /* in 'raw' mode? */
|
||||
|
||||
/* flag arg to npcb_free */
|
||||
#define NPCB_REMOVE 0 /* remove from global list */
|
||||
#define NPCB_DESTROY 1 /* destroy and be free */
|
||||
|
||||
/*
|
||||
* NPCB_RAWCC is a hack which applies to connections in 'raw' mode. it
|
||||
* is used to override the sbspace() macro when you *really* don't want
|
||||
* to drop rcv data. the recv socket buffer size is raised to this value.
|
||||
*
|
||||
* XXX: socket buffering needs to be looked at.
|
||||
*/
|
||||
|
||||
#define NPCB_RAWCC (1024*1024) /* 1MB */
|
||||
|
||||
LIST_HEAD(npcblist, natmpcb);
|
||||
|
||||
/* global data structures */
|
||||
|
||||
struct npcblist natm_pcbs; /* global list of pcbs */
|
||||
extern struct ifqueue natmintrq; /* natm packet input queue */
|
||||
#define NATM_STAT
|
||||
#ifdef NATM_STAT
|
||||
extern u_int natm_sodropcnt,
|
||||
natm_sodropbytes; /* account of droppage */
|
||||
extern u_int natm_sookcnt,
|
||||
natm_sookbytes; /* account of ok */
|
||||
#endif
|
||||
|
||||
/* atm_rawioctl: kernel's version of SIOCRAWATM [for internal use only!] */
|
||||
struct atm_rawioctl {
|
||||
struct natmpcb *npcb;
|
||||
int rawvalue;
|
||||
};
|
||||
#define SIOCXRAWATM _IOWR('a', 125, struct atm_rawioctl)
|
||||
|
||||
/* external functions */
|
||||
|
||||
/* natm_pcb.c */
|
||||
struct natmpcb *npcb_alloc __P((int));
|
||||
void npcb_free __P((struct natmpcb *, int));
|
||||
struct natmpcb *npcb_add __P((struct natmpcb *, struct ifnet *, int, int));
|
||||
|
||||
/* natm.c */
|
||||
#if defined(__NetBSD__) || defined(__OpenBSD__)
|
||||
int natm_usrreq __P((struct socket *, int, struct mbuf *,
|
||||
struct mbuf *, struct mbuf *, struct proc *));
|
||||
#elif defined(__FreeBSD__)
|
||||
int natm_usrreq __P((struct socket *, int, struct mbuf *,
|
||||
struct mbuf *, struct mbuf *));
|
||||
#endif
|
||||
int natm0_sysctl __P((int *, u_int, void *, size_t *, void *, size_t));
|
||||
int natm5_sysctl __P((int *, u_int, void *, size_t *, void *, size_t));
|
||||
void natmintr __P((void));
|
||||
|
||||
#endif
|
192
sys/netnatm/natm_pcb.c
Normal file
192
sys/netnatm/natm_pcb.c
Normal file
@ -0,0 +1,192 @@
|
||||
/* $NetBSD: natm_pcb.c,v 1.1 1996/07/04 03:20:13 chuck Exp $ */
|
||||
|
||||
/*
|
||||
*
|
||||
* Copyright (c) 1996 Charles D. Cranor and Washington University.
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. All advertising materials mentioning features or use of this software
|
||||
* must display the following acknowledgement:
|
||||
* This product includes software developed by Charles D. Cranor and
|
||||
* Washington University.
|
||||
* 4. The name of the author may not be used to endorse or promote products
|
||||
* derived from this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
||||
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
||||
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
||||
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
||||
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
||||
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
/*
|
||||
* atm_pcb.c: manage atm protocol control blocks and keep IP and NATM
|
||||
* from trying to use each other's VCs.
|
||||
*/
|
||||
|
||||
#include <sys/param.h>
|
||||
#include <sys/systm.h>
|
||||
#include <sys/queue.h>
|
||||
#include <sys/socket.h>
|
||||
#include <sys/protosw.h>
|
||||
#include <sys/domain.h>
|
||||
#include <sys/mbuf.h>
|
||||
#include <sys/malloc.h>
|
||||
|
||||
#include <net/if.h>
|
||||
#include <net/radix.h>
|
||||
#include <net/route.h>
|
||||
|
||||
#include <netinet/in.h>
|
||||
|
||||
#include <netnatm/natm.h>
|
||||
|
||||
/*
|
||||
* npcb_alloc: allocate a npcb [in the free state]
|
||||
*/
|
||||
|
||||
struct natmpcb *npcb_alloc(wait)
|
||||
|
||||
int wait;
|
||||
|
||||
{
|
||||
struct natmpcb *npcb;
|
||||
|
||||
MALLOC(npcb, struct natmpcb *, sizeof(*npcb), M_PCB, wait);
|
||||
|
||||
#ifdef DIAGNOSTIC
|
||||
if (wait == M_WAITOK && npcb == NULL) panic("npcb_alloc: malloc didn't wait");
|
||||
#endif
|
||||
|
||||
if (npcb) {
|
||||
bzero(npcb, sizeof(*npcb));
|
||||
npcb->npcb_flags = NPCB_FREE;
|
||||
}
|
||||
return(npcb);
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* npcb_free: free a npcb
|
||||
*/
|
||||
|
||||
void npcb_free(npcb, op)
|
||||
|
||||
struct natmpcb *npcb;
|
||||
int op;
|
||||
|
||||
{
|
||||
int s = splimp();
|
||||
|
||||
if ((npcb->npcb_flags & NPCB_FREE) == 0) {
|
||||
LIST_REMOVE(npcb, pcblist);
|
||||
npcb->npcb_flags = NPCB_FREE;
|
||||
}
|
||||
if (op == NPCB_DESTROY) {
|
||||
if (npcb->npcb_inq) {
|
||||
npcb->npcb_flags = NPCB_DRAIN; /* flag for distruction */
|
||||
} else {
|
||||
FREE(npcb, M_PCB); /* kill it! */
|
||||
}
|
||||
}
|
||||
|
||||
splx(s);
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* npcb_add: add or remove npcb from main list
|
||||
* returns npcb if ok
|
||||
*/
|
||||
|
||||
struct natmpcb *npcb_add(npcb, ifp, vci, vpi)
|
||||
|
||||
struct natmpcb *npcb;
|
||||
struct ifnet *ifp;
|
||||
u_int16_t vci;
|
||||
u_int8_t vpi;
|
||||
|
||||
{
|
||||
struct natmpcb *cpcb = NULL; /* current pcb */
|
||||
int s = splimp();
|
||||
|
||||
|
||||
/*
|
||||
* lookup required
|
||||
*/
|
||||
|
||||
for (cpcb = natm_pcbs.lh_first ; cpcb != NULL ;
|
||||
cpcb = cpcb->pcblist.le_next) {
|
||||
if (ifp == cpcb->npcb_ifp && vci == cpcb->npcb_vci && vpi == cpcb->npcb_vpi)
|
||||
break;
|
||||
}
|
||||
|
||||
/*
|
||||
* add & something already there?
|
||||
*/
|
||||
|
||||
if (cpcb) {
|
||||
cpcb = NULL;
|
||||
goto done; /* fail */
|
||||
}
|
||||
|
||||
/*
|
||||
* need to allocate a pcb?
|
||||
*/
|
||||
|
||||
if (npcb == NULL) {
|
||||
cpcb = npcb_alloc(M_NOWAIT); /* could be called from lower half */
|
||||
if (cpcb == NULL)
|
||||
goto done; /* fail */
|
||||
} else {
|
||||
cpcb = npcb;
|
||||
}
|
||||
|
||||
cpcb->npcb_ifp = ifp;
|
||||
cpcb->ipaddr.s_addr = 0;
|
||||
cpcb->npcb_vci = vci;
|
||||
cpcb->npcb_vpi = vpi;
|
||||
cpcb->npcb_flags = NPCB_CONNECTED;
|
||||
|
||||
LIST_INSERT_HEAD(&natm_pcbs, cpcb, pcblist);
|
||||
|
||||
done:
|
||||
splx(s);
|
||||
return(cpcb);
|
||||
}
|
||||
|
||||
|
||||
|
||||
#ifdef DDB
|
||||
|
||||
int npcb_dump()
|
||||
|
||||
{
|
||||
struct natmpcb *cpcb;
|
||||
|
||||
printf("npcb dump:\n");
|
||||
for (cpcb = natm_pcbs.lh_first ; cpcb != NULL ;
|
||||
cpcb = cpcb->pcblist.le_next) {
|
||||
printf("if=%s, vci=%d, vpi=%d, IP=0x%x, sock=0x%x, flags=0x%x, inq=%d\n",
|
||||
cpcb->npcb_ifp->if_xname, cpcb->npcb_vci, cpcb->npcb_vpi,
|
||||
cpcb->ipaddr.s_addr, cpcb->npcb_socket,
|
||||
cpcb->npcb_flags, cpcb->npcb_inq);
|
||||
}
|
||||
printf("done\n");
|
||||
return(0);
|
||||
}
|
||||
|
||||
#endif
|
105
sys/netnatm/natm_proto.c
Normal file
105
sys/netnatm/natm_proto.c
Normal file
@ -0,0 +1,105 @@
|
||||
/* $NetBSD: natm_proto.c,v 1.1 1996/07/04 03:20:14 chuck Exp $ */
|
||||
|
||||
/*
|
||||
*
|
||||
* Copyright (c) 1996 Charles D. Cranor and Washington University.
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. All advertising materials mentioning features or use of this software
|
||||
* must display the following acknowledgement:
|
||||
* This product includes software developed by Charles D. Cranor and
|
||||
* Washington University.
|
||||
* 4. The name of the author may not be used to endorse or promote products
|
||||
* derived from this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
||||
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
||||
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
||||
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
||||
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
||||
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
/*
|
||||
* protocol layer for access to native mode ATM
|
||||
*/
|
||||
|
||||
#include <sys/param.h>
|
||||
#include <sys/systm.h>
|
||||
#include <sys/kernel.h>
|
||||
#include <sys/queue.h>
|
||||
#include <sys/socket.h>
|
||||
#include <sys/protosw.h>
|
||||
#include <sys/domain.h>
|
||||
#include <sys/mbuf.h>
|
||||
|
||||
#include <net/if.h>
|
||||
#include <net/radix.h>
|
||||
#include <net/route.h>
|
||||
|
||||
#include <netinet/in.h>
|
||||
|
||||
#include <netnatm/natm.h>
|
||||
|
||||
extern struct domain natmdomain;
|
||||
|
||||
static void natm_init __P((void));
|
||||
|
||||
struct protosw natmsw[] = {
|
||||
{ SOCK_STREAM, &natmdomain, PROTO_NATMAAL5, PR_CONNREQUIRED,
|
||||
0, 0, 0, 0,
|
||||
natm_usrreq,
|
||||
0, 0, 0, 0,
|
||||
#if defined(__NetBSD__) || defined(__OpenBSD__)
|
||||
natm5_sysctl
|
||||
#endif
|
||||
},
|
||||
{ SOCK_STREAM, &natmdomain, PROTO_NATMAAL0, PR_CONNREQUIRED,
|
||||
0, 0, 0, 0,
|
||||
natm_usrreq,
|
||||
0, 0, 0, 0,
|
||||
#if defined(__NetBSD__) || defined(__OpenBSD__)
|
||||
natm0_sysctl
|
||||
#endif
|
||||
},
|
||||
};
|
||||
|
||||
struct domain natmdomain =
|
||||
{ AF_NATM, "natm", natm_init, 0, 0,
|
||||
natmsw, &natmsw[sizeof(natmsw)/sizeof(natmsw[0])], 0,
|
||||
0, 0, 0};
|
||||
|
||||
struct ifqueue natmintrq; /* natm packet input queue */
|
||||
int natmqmaxlen = IFQ_MAXLEN; /* max # of packets on queue */
|
||||
#ifdef NATM_STAT
|
||||
u_int natm_sodropcnt = 0; /* # mbufs dropped due to full sb */
|
||||
u_int natm_sodropbytes = 0; /* # of bytes dropped */
|
||||
u_int natm_sookcnt = 0; /* # mbufs ok */
|
||||
u_int natm_sookbytes = 0; /* # of bytes ok */
|
||||
#endif
|
||||
|
||||
|
||||
|
||||
void natm_init()
|
||||
|
||||
{
|
||||
LIST_INIT(&natm_pcbs);
|
||||
bzero(&natmintrq, sizeof(natmintrq));
|
||||
natmintrq.ifq_maxlen = natmqmaxlen;
|
||||
}
|
||||
|
||||
#if defined(__FreeBSD__)
|
||||
DOMAIN_SET(natm);
|
||||
#endif
|
Loading…
Reference in New Issue
Block a user