768 lines
20 KiB
C
768 lines
20 KiB
C
/* $NetBSD: tp_iso.c,v 1.14 2000/03/30 13:10:13 augustss Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 1991, 1993
|
|
* The Regents of the University of California. 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 the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
|
|
*
|
|
* @(#)tp_iso.c 8.2 (Berkeley) 9/22/94
|
|
*/
|
|
|
|
/***********************************************************
|
|
Copyright IBM Corporation 1987
|
|
|
|
All Rights Reserved
|
|
|
|
Permission to use, copy, modify, and distribute this software and its
|
|
documentation for any purpose and without fee is hereby granted,
|
|
provided that the above copyright notice appear in all copies and that
|
|
both that copyright notice and this permission notice appear in
|
|
supporting documentation, and that the name of IBM not be
|
|
used in advertising or publicity pertaining to distribution of the
|
|
software without specific, written prior permission.
|
|
|
|
IBM DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
|
|
ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
|
|
IBM BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
|
|
ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
|
|
WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
|
|
ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
|
|
SOFTWARE.
|
|
|
|
******************************************************************/
|
|
|
|
/*
|
|
* ARGO Project, Computer Sciences Dept., University of Wisconsin - Madison
|
|
*/
|
|
/*
|
|
* Here is where you find the iso-dependent code. We've tried keep all
|
|
* net-level and (primarily) address-family-dependent stuff out of the tp
|
|
* source, and everthing here is reached indirectly through a switch table
|
|
* (struct nl_protosw *) tpcb->tp_nlproto (see tp_pcb.c). The routines here
|
|
* are: iso_getsufx: gets transport suffix out of an isopcb structure.
|
|
* iso_putsufx: put transport suffix into an isopcb structure.
|
|
* iso_putnetaddr: put a whole net addr into an isopcb. iso_getnetaddr: get a
|
|
* whole net addr from an isopcb. iso_cmpnetaddr: compare a whole net addr
|
|
* from an isopcb. iso_recycle_suffix: clear suffix for reuse in isopcb
|
|
* tpclnp_ctlinput: handle ER CNLPdu : icmp-like stuff tpclnp_mtu: figure out
|
|
* what size tpdu to use tpclnp_input: take a pkt from clnp, strip off its
|
|
* clnp header, give to tp tpclnp_output_dg: package a pkt for clnp given 2
|
|
* addresses & some data tpclnp_output: package a pkt for clnp given an
|
|
* isopcb & some data
|
|
*/
|
|
|
|
#include "opt_iso.h"
|
|
#ifdef ISO
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/socket.h>
|
|
#include <sys/socketvar.h>
|
|
#include <sys/domain.h>
|
|
#include <sys/malloc.h>
|
|
#include <sys/mbuf.h>
|
|
#include <sys/errno.h>
|
|
#include <sys/time.h>
|
|
#include <sys/protosw.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/kernel.h>
|
|
|
|
#include <net/if.h>
|
|
#include <net/route.h>
|
|
|
|
#include <netiso/argo_debug.h>
|
|
#include <netiso/tp_param.h>
|
|
#include <netiso/tp_stat.h>
|
|
#include <netiso/tp_pcb.h>
|
|
#include <netiso/tp_trace.h>
|
|
#include <netiso/tp_stat.h>
|
|
#include <netiso/tp_tpdu.h>
|
|
#include <netiso/tp_clnp.h>
|
|
#include <netiso/tp_var.h>
|
|
#include <netiso/cltp_var.h>
|
|
#include <netiso/idrp_var.h>
|
|
|
|
#include <machine/stdarg.h>
|
|
|
|
/*
|
|
* CALLED FROM:
|
|
* pr_usrreq() on PRU_BIND, PRU_CONNECT, PRU_ACCEPT, and PRU_PEERADDR
|
|
* FUNCTION, ARGUMENTS:
|
|
* The argument (which) takes the value TP_LOCAL or TP_FOREIGN.
|
|
*/
|
|
|
|
void
|
|
iso_getsufx(v, lenp, data_out, which)
|
|
void *v;
|
|
u_short *lenp;
|
|
caddr_t data_out;
|
|
int which;
|
|
{
|
|
struct isopcb *isop = v;
|
|
struct sockaddr_iso *addr = 0;
|
|
|
|
switch (which) {
|
|
case TP_LOCAL:
|
|
addr = isop->isop_laddr;
|
|
break;
|
|
|
|
case TP_FOREIGN:
|
|
addr = isop->isop_faddr;
|
|
}
|
|
if (addr)
|
|
bcopy(TSEL(addr), data_out, (*lenp = addr->siso_tlen));
|
|
}
|
|
|
|
/*
|
|
* CALLED FROM: tp_newsocket(); i.e., when a connection is being established
|
|
* by an incoming CR_TPDU.
|
|
*
|
|
* FUNCTION, ARGUMENTS: Put a transport suffix (found in name) into an isopcb
|
|
* structure (isop). The argument (which) takes the value TP_LOCAL or
|
|
* TP_FOREIGN.
|
|
*/
|
|
void
|
|
iso_putsufx(v, sufxloc, sufxlen, which)
|
|
void *v;
|
|
caddr_t sufxloc;
|
|
int sufxlen, which;
|
|
{
|
|
struct isopcb *isop = v;
|
|
struct sockaddr_iso **dst, *backup;
|
|
struct sockaddr_iso *addr;
|
|
struct mbuf *m;
|
|
int len;
|
|
|
|
switch (which) {
|
|
default:
|
|
return;
|
|
|
|
case TP_LOCAL:
|
|
dst = &isop->isop_laddr;
|
|
backup = &isop->isop_sladdr;
|
|
break;
|
|
|
|
case TP_FOREIGN:
|
|
dst = &isop->isop_faddr;
|
|
backup = &isop->isop_sfaddr;
|
|
}
|
|
if ((addr = *dst) == 0) {
|
|
addr = *dst = backup;
|
|
addr->siso_nlen = 0;
|
|
addr->siso_slen = 0;
|
|
addr->siso_plen = 0;
|
|
printf("iso_putsufx on un-initialized isopcb\n");
|
|
}
|
|
len = sufxlen + addr->siso_nlen +
|
|
(sizeof(*addr) - sizeof(addr->siso_data));
|
|
if (addr == backup) {
|
|
if (len > sizeof(*addr)) {
|
|
m = m_getclr(M_DONTWAIT, MT_SONAME);
|
|
if (m == 0)
|
|
return;
|
|
addr = *dst = mtod(m, struct sockaddr_iso *);
|
|
*addr = *backup;
|
|
m->m_len = len;
|
|
}
|
|
}
|
|
bcopy(sufxloc, TSEL(addr), sufxlen);
|
|
addr->siso_tlen = sufxlen;
|
|
addr->siso_len = len;
|
|
}
|
|
|
|
/*
|
|
* CALLED FROM:
|
|
* tp.trans whenever we go into REFWAIT state.
|
|
* FUNCTION and ARGUMENT:
|
|
* Called when a ref is frozen, to allow the suffix to be reused.
|
|
* (isop) is the net level pcb. This really shouldn't have to be
|
|
* done in a NET level pcb but... for the internet world that just
|
|
* the way it is done in BSD...
|
|
* The alternative is to have the port unusable until the reference
|
|
* timer goes off.
|
|
*/
|
|
void
|
|
iso_recycle_tsuffix(v)
|
|
void *v;
|
|
{
|
|
struct isopcb *isop = v;
|
|
isop->isop_laddr->siso_tlen = isop->isop_faddr->siso_tlen = 0;
|
|
}
|
|
|
|
/*
|
|
* CALLED FROM:
|
|
* tp_newsocket(); i.e., when a connection is being established by an
|
|
* incoming CR_TPDU.
|
|
*
|
|
* FUNCTION and ARGUMENTS:
|
|
* Copy a whole net addr from a struct sockaddr (name).
|
|
* into an isopcb (isop).
|
|
* The argument (which) takes values TP_LOCAL or TP_FOREIGN
|
|
*/
|
|
void
|
|
iso_putnetaddr(v, nm, which)
|
|
void *v;
|
|
struct sockaddr *nm;
|
|
int which;
|
|
{
|
|
struct isopcb *isop = v;
|
|
struct sockaddr_iso *name = (struct sockaddr_iso *) nm;
|
|
struct sockaddr_iso **sisop, *backup;
|
|
struct sockaddr_iso *siso;
|
|
|
|
switch (which) {
|
|
default:
|
|
printf("iso_putnetaddr: should panic\n");
|
|
return;
|
|
case TP_LOCAL:
|
|
sisop = &isop->isop_laddr;
|
|
backup = &isop->isop_sladdr;
|
|
break;
|
|
case TP_FOREIGN:
|
|
sisop = &isop->isop_faddr;
|
|
backup = &isop->isop_sfaddr;
|
|
}
|
|
siso = ((*sisop == 0) ? (*sisop = backup) : *sisop);
|
|
#ifdef ARGO_DEBUG
|
|
if (argo_debug[D_TPISO]) {
|
|
printf("ISO_PUTNETADDR\n");
|
|
dump_isoaddr(isop->isop_faddr);
|
|
}
|
|
#endif
|
|
siso->siso_addr = name->siso_addr;
|
|
}
|
|
|
|
/*
|
|
* CALLED FROM:
|
|
* tp_input() when a connection is being established by an
|
|
* incoming CR_TPDU, and considered for interception.
|
|
*
|
|
* FUNCTION and ARGUMENTS:
|
|
* compare a whole net addr from a struct sockaddr (name),
|
|
* with that implicitly stored in an isopcb (isop).
|
|
* The argument (which) takes values TP_LOCAL or TP_FOREIGN.
|
|
*/
|
|
int
|
|
iso_cmpnetaddr(v, nm, which)
|
|
void *v;
|
|
struct sockaddr *nm;
|
|
int which;
|
|
{
|
|
struct isopcb *isop = v;
|
|
struct sockaddr_iso *name = (struct sockaddr_iso *) nm;
|
|
struct sockaddr_iso **sisop, *backup;
|
|
struct sockaddr_iso *siso;
|
|
|
|
switch (which) {
|
|
default:
|
|
printf("iso_cmpnetaddr: should panic\n");
|
|
return 0;
|
|
case TP_LOCAL:
|
|
sisop = &isop->isop_laddr;
|
|
backup = &isop->isop_sladdr;
|
|
break;
|
|
case TP_FOREIGN:
|
|
sisop = &isop->isop_faddr;
|
|
backup = &isop->isop_sfaddr;
|
|
}
|
|
siso = ((*sisop == 0) ? (*sisop = backup) : *sisop);
|
|
#ifdef ARGO_DEBUG
|
|
if (argo_debug[D_TPISO]) {
|
|
printf("ISO_CMPNETADDR\n");
|
|
dump_isoaddr(siso);
|
|
}
|
|
#endif
|
|
if (name->siso_tlen && bcmp(TSEL(name), TSEL(siso), name->siso_tlen))
|
|
return (0);
|
|
return (bcmp((caddr_t) name->siso_data,
|
|
(caddr_t) siso->siso_data, name->siso_nlen) == 0);
|
|
}
|
|
|
|
/*
|
|
* CALLED FROM:
|
|
* pr_usrreq() PRU_SOCKADDR, PRU_ACCEPT, PRU_PEERADDR
|
|
* FUNCTION and ARGUMENTS:
|
|
* Copy a whole net addr from an isopcb (isop) into
|
|
* a struct sockaddr (name).
|
|
* The argument (which) takes values TP_LOCAL or TP_FOREIGN.
|
|
*/
|
|
|
|
void
|
|
iso_getnetaddr(v, name, which)
|
|
void *v;
|
|
struct mbuf *name;
|
|
int which;
|
|
{
|
|
struct inpcb *inp = v;
|
|
struct isopcb *isop = (struct isopcb *) inp;
|
|
struct sockaddr_iso *siso =
|
|
(which == TP_LOCAL ? isop->isop_laddr : isop->isop_faddr);
|
|
if (siso)
|
|
bcopy((caddr_t) siso, mtod(name, caddr_t),
|
|
(unsigned) (name->m_len = siso->siso_len));
|
|
else
|
|
name->m_len = 0;
|
|
}
|
|
/*
|
|
* NAME: tpclnp_mtu()
|
|
*
|
|
* CALLED FROM:
|
|
* tp_route_to() on incoming CR, CC, and pr_usrreq() for PRU_CONNECT
|
|
*
|
|
* FUNCTION, ARGUMENTS, and RETURN VALUE:
|
|
*
|
|
* Perform subnetwork dependent part of determining MTU information.
|
|
* It appears that setting a double pointer to the rtentry associated with
|
|
* the destination, and returning the header size for the network protocol
|
|
* suffices.
|
|
*
|
|
* SIDE EFFECTS:
|
|
* Sets tp_routep pointer in pcb.
|
|
*
|
|
* NOTES:
|
|
*/
|
|
int
|
|
tpclnp_mtu(v)
|
|
void *v;
|
|
{
|
|
struct tp_pcb *tpcb = v;
|
|
struct isopcb *isop = (struct isopcb *) tpcb->tp_npcb;
|
|
|
|
#ifdef ARGO_DEBUG
|
|
if (argo_debug[D_CONN]) {
|
|
printf("tpclnp_mtu(tpcb %p)\n", tpcb);
|
|
}
|
|
#endif
|
|
tpcb->tp_routep = &(isop->isop_route.ro_rt);
|
|
if (tpcb->tp_netservice == ISO_CONS)
|
|
return 0;
|
|
else
|
|
return (sizeof(struct clnp_fixed) + sizeof(struct clnp_segment) +
|
|
2 * sizeof(struct iso_addr));
|
|
|
|
}
|
|
|
|
/*
|
|
* CALLED FROM:
|
|
* tp_emit()
|
|
* FUNCTION and ARGUMENTS:
|
|
* Take a packet(m0) from tp and package it so that clnp will accept it.
|
|
* This means prepending space for the clnp header and filling in a few
|
|
* of the fields.
|
|
* isop is the isopcb structure; datalen is the length of the data in the
|
|
* mbuf string m0.
|
|
* RETURN VALUE:
|
|
* whatever (E*) is returned form the net layer output routine.
|
|
*/
|
|
|
|
int
|
|
#if __STDC__
|
|
tpclnp_output(struct mbuf *m0, ...)
|
|
#else
|
|
tpclnp_output(m0, va_alist)
|
|
struct mbuf *m0;
|
|
va_dcl
|
|
#endif
|
|
{
|
|
int datalen;
|
|
struct isopcb *isop;
|
|
int nochksum;
|
|
va_list ap;
|
|
|
|
va_start(ap, m0);
|
|
datalen = va_arg(ap, int);
|
|
isop = va_arg(ap, struct isopcb *);
|
|
nochksum = va_arg(ap, int);
|
|
va_end(ap);
|
|
|
|
IncStat(ts_tpdu_sent);
|
|
|
|
#ifdef ARGO_DEBUG
|
|
if (argo_debug[D_TPISO]) {
|
|
struct tpdu *hdr = mtod(m0, struct tpdu *);
|
|
|
|
printf(
|
|
"abt to call clnp_output: datalen 0x%x, hdr.li 0x%x, hdr.dutype 0x%x nocsum x%x dst addr:\n",
|
|
datalen,
|
|
(int) hdr->tpdu_li, (int) hdr->tpdu_type, nochksum);
|
|
dump_isoaddr(isop->isop_faddr);
|
|
printf("\nsrc addr:\n");
|
|
dump_isoaddr(isop->isop_laddr);
|
|
dump_mbuf(m0, "at tpclnp_output");
|
|
}
|
|
#endif
|
|
|
|
return
|
|
clnp_output(m0, isop, datalen, /* flags */ nochksum ? CLNP_NO_CKSUM : 0);
|
|
}
|
|
|
|
/*
|
|
* CALLED FROM:
|
|
* tp_error_emit()
|
|
* FUNCTION and ARGUMENTS:
|
|
* This is a copy of tpclnp_output that takes the addresses
|
|
* instead of a pcb. It's used by the tp_error_emit, when we
|
|
* don't have an iso_pcb with which to call the normal output rtn.
|
|
* RETURN VALUE:
|
|
* ENOBUFS or
|
|
* whatever (E*) is returned form the net layer output routine.
|
|
*/
|
|
|
|
int
|
|
#if __STDC__
|
|
tpclnp_output_dg(struct mbuf *m0, ...)
|
|
#else
|
|
tpclnp_output_dg(m0, va_alist)
|
|
struct mbuf *m0;
|
|
va_dcl
|
|
#endif
|
|
{
|
|
struct isopcb tmppcb;
|
|
int err;
|
|
int flags;
|
|
int datalen;
|
|
struct iso_addr *laddr, *faddr;
|
|
struct route *ro;
|
|
int nochksum;
|
|
va_list ap;
|
|
|
|
va_start(ap, m0);
|
|
datalen = va_arg(ap, int);
|
|
laddr = va_arg(ap, struct iso_addr *);
|
|
faddr = va_arg(ap, struct iso_addr *);
|
|
ro = va_arg(ap, struct route *);
|
|
nochksum = va_arg(ap, int);
|
|
va_end(ap);
|
|
|
|
#ifdef ARGO_DEBUG
|
|
if (argo_debug[D_TPISO]) {
|
|
printf("tpclnp_output_dg datalen 0x%x m0 %p\n", datalen, m0);
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* Fill in minimal portion of isopcb so that clnp can send the
|
|
* packet.
|
|
*/
|
|
bzero((caddr_t) & tmppcb, sizeof(tmppcb));
|
|
tmppcb.isop_laddr = &tmppcb.isop_sladdr;
|
|
tmppcb.isop_laddr->siso_addr = *laddr;
|
|
tmppcb.isop_faddr = &tmppcb.isop_sfaddr;
|
|
tmppcb.isop_faddr->siso_addr = *faddr;
|
|
|
|
#ifdef ARGO_DEBUG
|
|
if (argo_debug[D_TPISO]) {
|
|
printf("tpclnp_output_dg faddr: \n");
|
|
dump_isoaddr(&tmppcb.isop_sfaddr);
|
|
printf("\ntpclnp_output_dg laddr: \n");
|
|
dump_isoaddr(&tmppcb.isop_sladdr);
|
|
printf("\n");
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* Do not use packet cache since this is a one shot error packet
|
|
*/
|
|
flags = (CLNP_NOCACHE | (nochksum ? CLNP_NO_CKSUM : 0));
|
|
|
|
IncStat(ts_tpdu_sent);
|
|
|
|
err = clnp_output(m0, &tmppcb, datalen, flags);
|
|
|
|
/*
|
|
* Free route allocated by clnp (if the route was indeed allocated)
|
|
*/
|
|
if (tmppcb.isop_route.ro_rt)
|
|
RTFREE(tmppcb.isop_route.ro_rt);
|
|
|
|
return (err);
|
|
}
|
|
/*
|
|
* CALLED FROM:
|
|
* clnp's input routine, indirectly through the protosw.
|
|
* FUNCTION and ARGUMENTS:
|
|
* Take a packet (m) from clnp, strip off the clnp header and give it to tp
|
|
* No return value.
|
|
*/
|
|
void
|
|
#if __STDC__
|
|
tpclnp_input(struct mbuf *m, ...)
|
|
#else
|
|
tpclnp_input(m, va_alist)
|
|
struct mbuf *m;
|
|
va_dcl
|
|
#endif
|
|
{
|
|
struct sockaddr_iso *src, *dst;
|
|
int clnp_len, ce_bit;
|
|
void (*input) __P((struct mbuf *, ...)) = tp_input;
|
|
va_list ap;
|
|
|
|
va_start(ap, m);
|
|
src = va_arg(ap, struct sockaddr_iso *);
|
|
dst = va_arg(ap, struct sockaddr_iso *);
|
|
clnp_len = va_arg(ap, int);
|
|
ce_bit = va_arg(ap, int);
|
|
va_end(ap);
|
|
|
|
IncStat(ts_pkt_rcvd);
|
|
|
|
#ifdef ARGO_DEBUG
|
|
if (argo_debug[D_TPINPUT]) {
|
|
printf("tpclnp_input: m %p clnp_len 0x%x\n", m, clnp_len);
|
|
dump_mbuf(m, "at tpclnp_input");
|
|
}
|
|
#endif
|
|
/*
|
|
* CLNP gives us an mbuf chain WITH the clnp header pulled up,
|
|
* and the length of the clnp header.
|
|
* First, strip off the Clnp header. leave the mbuf there for the
|
|
* pullup that follows.
|
|
*/
|
|
m->m_len -= clnp_len;
|
|
m->m_data += clnp_len;
|
|
m->m_pkthdr.len -= clnp_len;
|
|
/* XXXX: should probably be in clnp_input */
|
|
switch (dst->siso_data[dst->siso_nlen - 1]) {
|
|
case 0:
|
|
if (m->m_len == 0 && (m = m_pullup(m, 1)) == 0)
|
|
return;
|
|
if (*(mtod(m, u_char *)) == ISO10747_IDRP) {
|
|
idrp_input(m, src, dst);
|
|
return;
|
|
}
|
|
}
|
|
m = tp_inputprep(m);
|
|
if (m == 0)
|
|
return;
|
|
if (mtod(m, u_char *)[1] == UD_TPDU_type)
|
|
input = cltp_input;
|
|
|
|
#ifdef ARGO_DEBUG
|
|
if (argo_debug[D_TPINPUT]) {
|
|
dump_mbuf(m, "after tpclnp_input both pullups");
|
|
}
|
|
#endif
|
|
|
|
#ifdef ARGO_DEBUG
|
|
if (argo_debug[D_TPISO]) {
|
|
printf("calling %sinput : src %p, dst %p, src addr:\n",
|
|
(input == tp_input ? "tp_" : "clts_"), src, dst);
|
|
dump_isoaddr(src);
|
|
printf(" dst addr:\n");
|
|
dump_isoaddr(dst);
|
|
}
|
|
#endif
|
|
|
|
(*input) (m, (struct sockaddr *) src, (struct sockaddr *) dst, 0,
|
|
tpclnp_output_dg, ce_bit);
|
|
|
|
#ifdef ARGO_DEBUG
|
|
if (argo_debug[D_QUENCH]) {{
|
|
if (time.tv_usec & 0x4 && time.tv_usec & 0x40) {
|
|
printf("tpclnp_input: FAKING %s\n",
|
|
tp_stat.ts_pkt_rcvd & 0x1 ? "QUENCH" : "QUENCH2");
|
|
if (tp_stat.ts_pkt_rcvd & 0x1)
|
|
tpclnp_ctlinput(PRC_QUENCH,
|
|
(struct sockaddr *)
|
|
&src, NULL);
|
|
else
|
|
tpclnp_ctlinput(PRC_QUENCH2,
|
|
(struct sockaddr *)
|
|
&src, NULL);
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
|
|
/*ARGSUSED*/
|
|
void
|
|
iso_rtchange(pcb)
|
|
struct isopcb *pcb;
|
|
{
|
|
|
|
}
|
|
|
|
/*
|
|
* CALLED FROM:
|
|
* tpclnp_ctlinput()
|
|
* FUNCTION and ARGUMENTS:
|
|
* find the tpcb pointer and pass it to tp_quench
|
|
*/
|
|
void
|
|
tpiso_decbit(isop)
|
|
struct isopcb *isop;
|
|
{
|
|
tp_quench((struct inpcb *) isop->isop_socket->so_pcb, PRC_QUENCH2);
|
|
}
|
|
/*
|
|
* CALLED FROM:
|
|
* tpclnp_ctlinput()
|
|
* FUNCTION and ARGUMENTS:
|
|
* find the tpcb pointer and pass it to tp_quench
|
|
*/
|
|
void
|
|
tpiso_quench(isop)
|
|
struct isopcb *isop;
|
|
{
|
|
tp_quench((struct inpcb *) isop->isop_socket->so_pcb, PRC_QUENCH);
|
|
}
|
|
|
|
/*
|
|
* CALLED FROM:
|
|
* The network layer through the protosw table.
|
|
* FUNCTION and ARGUMENTS:
|
|
* When clnp an ICMP-like msg this gets called.
|
|
* It either returns an error status to the user or
|
|
* it causes all connections on this address to be aborted
|
|
* by calling the appropriate xx_notify() routine.
|
|
* (cmd) is the type of ICMP error.
|
|
* (siso) is the address of the guy who sent the ER CLNPDU
|
|
*/
|
|
void *
|
|
tpclnp_ctlinput(cmd, saddr, dummy)
|
|
int cmd;
|
|
struct sockaddr *saddr;
|
|
void *dummy;
|
|
{
|
|
struct sockaddr_iso *siso = (struct sockaddr_iso *) saddr;
|
|
extern u_char inetctlerrmap[];
|
|
|
|
#ifdef ARGO_DEBUG
|
|
if (argo_debug[D_TPINPUT]) {
|
|
printf("tpclnp_ctlinput1: cmd 0x%x addr: \n", cmd);
|
|
dump_isoaddr(siso);
|
|
}
|
|
#endif
|
|
|
|
if (cmd < 0 || cmd > PRC_NCMDS)
|
|
return NULL;
|
|
if (siso->siso_family != AF_ISO)
|
|
return NULL;
|
|
switch (cmd) {
|
|
|
|
case PRC_QUENCH2:
|
|
iso_pcbnotify(&tp_isopcb, siso, 0, tpiso_decbit);
|
|
break;
|
|
|
|
case PRC_QUENCH:
|
|
iso_pcbnotify(&tp_isopcb, siso, 0, tpiso_quench);
|
|
break;
|
|
|
|
case PRC_TIMXCEED_REASS:
|
|
case PRC_ROUTEDEAD:
|
|
iso_pcbnotify(&tp_isopcb, siso, 0, tpiso_reset);
|
|
break;
|
|
|
|
case PRC_HOSTUNREACH:
|
|
case PRC_UNREACH_NET:
|
|
case PRC_IFDOWN:
|
|
case PRC_HOSTDEAD:
|
|
iso_pcbnotify(&tp_isopcb, siso,
|
|
(int) inetctlerrmap[cmd], iso_rtchange);
|
|
break;
|
|
|
|
default:
|
|
/*
|
|
case PRC_MSGSIZE:
|
|
case PRC_UNREACH_HOST:
|
|
case PRC_UNREACH_PROTOCOL:
|
|
case PRC_UNREACH_PORT:
|
|
case PRC_UNREACH_NEEDFRAG:
|
|
case PRC_UNREACH_SRCFAIL:
|
|
case PRC_REDIRECT_NET:
|
|
case PRC_REDIRECT_HOST:
|
|
case PRC_REDIRECT_TOSNET:
|
|
case PRC_REDIRECT_TOSHOST:
|
|
case PRC_TIMXCEED_INTRANS:
|
|
case PRC_PARAMPROB:
|
|
*/
|
|
iso_pcbnotify(&tp_isopcb, siso, (int) inetctlerrmap[cmd], tpiso_abort);
|
|
break;
|
|
}
|
|
return NULL;
|
|
}
|
|
/*
|
|
* XXX - Variant which is called by clnp_er.c with an isoaddr rather
|
|
* than a sockaddr_iso.
|
|
*/
|
|
|
|
static struct sockaddr_iso siso = {sizeof(siso), AF_ISO};
|
|
void
|
|
tpclnp_ctlinput1(cmd, isoa)
|
|
int cmd;
|
|
struct iso_addr *isoa;
|
|
{
|
|
bzero((caddr_t) & siso.siso_addr, sizeof(siso.siso_addr));
|
|
bcopy((caddr_t) isoa, (caddr_t) & siso.siso_addr, isoa->isoa_len);
|
|
tpclnp_ctlinput(cmd, (struct sockaddr *) &siso, NULL);
|
|
}
|
|
|
|
/*
|
|
* These next 2 routines are
|
|
* CALLED FROM:
|
|
* xxx_notify() from tp_ctlinput() when
|
|
* net level gets some ICMP-equiv. type event.
|
|
* FUNCTION and ARGUMENTS:
|
|
* Cause the connection to be aborted with some sort of error
|
|
* reason indicating that the network layer caused the abort.
|
|
* Fakes an ER TPDU so we can go through the driver.
|
|
* abort always aborts the TP connection.
|
|
* reset may or may not, depending on the TP class that's in use.
|
|
*/
|
|
void
|
|
tpiso_abort(isop)
|
|
struct isopcb *isop;
|
|
{
|
|
struct tp_event e;
|
|
|
|
#ifdef ARGO_DEBUG
|
|
if (argo_debug[D_CONN]) {
|
|
printf("tpiso_abort %p\n", isop);
|
|
}
|
|
#endif
|
|
e.ev_number = ER_TPDU;
|
|
e.TPDU_ATTR(ER).e_reason = ECONNABORTED;
|
|
tp_driver((struct tp_pcb *) isop->isop_socket->so_pcb, &e);
|
|
}
|
|
|
|
void
|
|
tpiso_reset(isop)
|
|
struct isopcb *isop;
|
|
{
|
|
struct tp_event e;
|
|
|
|
e.ev_number = T_NETRESET;
|
|
tp_driver((struct tp_pcb *) isop->isop_socket->so_pcb, &e);
|
|
|
|
}
|
|
|
|
#endif /* ISO */
|