1998-01-29 00:44:16 +00:00
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/*
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* PPP IP Control Protocol (IPCP) Module
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*
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* Written by Toshiharu OHNO (tony-o@iij.ad.jp)
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*
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* Copyright (C) 1993, Internet Initiative Japan, Inc. All rights reserverd.
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*
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* Redistribution and use in source and binary forms are permitted
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* provided that the above copyright notice and this paragraph are
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* duplicated in all such forms and that any documentation,
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* advertising materials, and other materials related to such
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* distribution and use acknowledge that the software was developed
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* by the Internet Initiative Japan, Inc. The name of the
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* IIJ may not be used to endorse or promote products derived
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* from this software without specific prior written permission.
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
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* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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*
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1998-02-08 11:05:01 +00:00
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* $Id: ipcp.c,v 1.50.2.9 1998/02/07 20:49:41 brian Exp $
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1998-01-29 00:44:16 +00:00
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*
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* TODO:
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* o More RFC1772 backwoard compatibility
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*/
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#include <sys/param.h>
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#include <netinet/in_systm.h>
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#include <netinet/in.h>
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#include <netinet/ip.h>
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#include <arpa/inet.h>
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#include <sys/socket.h>
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#include <netdb.h>
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1998-02-07 20:50:08 +00:00
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#include <sys/time.h>
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#include <net/if.h>
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#include <sys/sockio.h>
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1998-01-29 00:44:16 +00:00
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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1998-02-07 20:50:08 +00:00
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#include <sys/errno.h>
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1998-02-02 19:33:40 +00:00
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#include <termios.h>
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1998-01-29 00:44:16 +00:00
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#include <unistd.h>
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#include "command.h"
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#include "mbuf.h"
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#include "log.h"
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#include "defs.h"
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#include "timer.h"
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#include "fsm.h"
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#include "lcpproto.h"
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#include "lcp.h"
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#include "iplist.h"
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1998-01-29 23:11:44 +00:00
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#include "throughput.h"
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1998-01-29 00:44:16 +00:00
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#include "ipcp.h"
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#include "slcompress.h"
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1998-02-02 19:32:16 +00:00
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#include "bundle.h"
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1998-01-29 00:44:16 +00:00
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#include "loadalias.h"
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#include "vars.h"
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#include "vjcomp.h"
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#include "ip.h"
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#include "route.h"
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#include "filter.h"
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1998-01-30 19:46:07 +00:00
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#include "hdlc.h"
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1998-02-02 19:33:40 +00:00
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#include "async.h"
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1998-01-30 19:46:07 +00:00
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#include "link.h"
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1998-01-29 00:49:32 +00:00
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#include "physical.h"
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1998-02-07 20:50:08 +00:00
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#include "id.h"
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#include "arp.h"
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#include "systems.h"
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1998-01-29 00:44:16 +00:00
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1998-01-29 23:11:44 +00:00
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struct compreq {
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u_short proto;
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u_char slots;
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u_char compcid;
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};
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1998-01-29 00:44:16 +00:00
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static void IpcpLayerUp(struct fsm *);
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static void IpcpLayerDown(struct fsm *);
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1998-01-31 02:48:30 +00:00
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static void IpcpLayerStart(struct fsm *);
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static void IpcpLayerFinish(struct fsm *);
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1998-01-29 00:44:16 +00:00
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static void IpcpInitRestartCounter(struct fsm *);
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1998-01-31 02:48:30 +00:00
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static void IpcpSendConfigReq(struct fsm *);
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static void IpcpSendTerminateReq(struct fsm *);
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static void IpcpSendTerminateAck(struct fsm *);
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1998-02-06 02:24:29 +00:00
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static void IpcpDecodeConfig(struct fsm *, u_char *, int, int);
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static struct fsm_callbacks ipcp_Callbacks = {
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IpcpLayerUp,
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IpcpLayerDown,
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IpcpLayerStart,
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IpcpLayerFinish,
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IpcpInitRestartCounter,
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IpcpSendConfigReq,
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IpcpSendTerminateReq,
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IpcpSendTerminateAck,
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IpcpDecodeConfig,
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};
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1998-01-29 00:44:16 +00:00
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1998-02-08 11:05:01 +00:00
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struct ipcp IpcpInfo = {
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1998-01-31 02:48:30 +00:00
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{
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"IPCP",
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PROTO_IPCP,
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IPCP_MAXCODE,
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0,
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ST_INITIAL,
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0, 0, 0,
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{0, 0, 0, NULL, NULL, NULL}, /* FSM timer */
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{0, 0, 0, NULL, NULL, NULL}, /* Open timer */
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{0, 0, 0, NULL, NULL, NULL}, /* Stopped timer */
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LogIPCP,
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1998-02-02 19:32:16 +00:00
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NULL, /* link */
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NULL, /* bundle */
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1998-02-06 02:24:29 +00:00
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&ipcp_Callbacks,
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1998-01-31 02:48:30 +00:00
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},
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MAX_VJ_STATES,
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1
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1998-01-29 00:44:16 +00:00
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};
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static const char *cftypes[] = {
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/* Check out the latest ``Assigned numbers'' rfc (rfc1700.txt) */
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"???",
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"IPADDRS", /* 1: IP-Addresses */ /* deprecated */
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"COMPPROTO", /* 2: IP-Compression-Protocol */
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"IPADDR", /* 3: IP-Address */
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};
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#define NCFTYPES (sizeof cftypes/sizeof cftypes[0])
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static const char *cftypes128[] = {
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/* Check out the latest ``Assigned numbers'' rfc (rfc1700.txt) */
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"???",
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"PRIDNS", /* 129: Primary DNS Server Address */
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"PRINBNS", /* 130: Primary NBNS Server Address */
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"SECDNS", /* 131: Secondary DNS Server Address */
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"SECNBNS", /* 132: Secondary NBNS Server Address */
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};
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#define NCFTYPES128 (sizeof cftypes128/sizeof cftypes128[0])
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void
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IpcpAddInOctets(int n)
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{
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1998-01-29 23:11:44 +00:00
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throughput_addin(&IpcpInfo.throughput, n);
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1998-01-29 00:44:16 +00:00
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}
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void
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IpcpAddOutOctets(int n)
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{
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1998-01-29 23:11:44 +00:00
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throughput_addout(&IpcpInfo.throughput, n);
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1998-01-29 00:44:16 +00:00
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}
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int
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ReportIpcpStatus(struct cmdargs const *arg)
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{
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if (!VarTerm)
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return 1;
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1998-01-31 02:48:30 +00:00
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fprintf(VarTerm, "%s [%s]\n", IpcpInfo.fsm.name,
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StateNames[IpcpInfo.fsm.state]);
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if (IpcpInfo.fsm.state == ST_OPENED) {
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1998-02-02 19:32:31 +00:00
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fprintf(VarTerm, " His side: %s, %s\n",
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1998-01-29 00:44:16 +00:00
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inet_ntoa(IpcpInfo.his_ipaddr), vj2asc(IpcpInfo.his_compproto));
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1998-02-02 19:32:31 +00:00
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fprintf(VarTerm, " My side: %s, %s\n",
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1998-01-29 00:44:16 +00:00
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inet_ntoa(IpcpInfo.want_ipaddr), vj2asc(IpcpInfo.want_compproto));
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}
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1998-02-02 19:32:31 +00:00
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fprintf(VarTerm, "\nDefaults:\n");
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fprintf(VarTerm, " My Address: %s/%d\n",
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1998-01-29 23:11:44 +00:00
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inet_ntoa(IpcpInfo.DefMyAddress.ipaddr), IpcpInfo.DefMyAddress.width);
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if (iplist_isvalid(&IpcpInfo.DefHisChoice))
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1998-02-02 19:32:31 +00:00
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fprintf(VarTerm, " His Address: %s\n",
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IpcpInfo.DefHisChoice.src);
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1998-01-29 00:44:16 +00:00
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else
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1998-02-02 19:32:31 +00:00
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fprintf(VarTerm, " His Address: %s/%d\n",
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1998-01-29 23:11:44 +00:00
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inet_ntoa(IpcpInfo.DefHisAddress.ipaddr),
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IpcpInfo.DefHisAddress.width);
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if (IpcpInfo.HaveTriggerAddress)
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1998-02-02 19:32:31 +00:00
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fprintf(VarTerm, " Negotiation(trigger): %s\n",
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1998-01-29 23:11:44 +00:00
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inet_ntoa(IpcpInfo.TriggerAddress));
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1998-01-29 00:44:16 +00:00
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else
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1998-02-02 19:32:31 +00:00
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fprintf(VarTerm, " Negotiation(trigger): MYADDR\n");
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fprintf(VarTerm, " Initial VJ slots: %d\n", IpcpInfo.VJInitSlots);
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fprintf(VarTerm, " Initial VJ compression: %s\n",
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IpcpInfo.VJInitComp ? "on" : "off");
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1998-01-29 00:44:16 +00:00
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fprintf(VarTerm, "\n");
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1998-01-29 23:11:44 +00:00
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throughput_disp(&IpcpInfo.throughput, VarTerm);
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1998-01-29 00:44:16 +00:00
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return 0;
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}
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void
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IpcpDefAddress()
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{
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1998-01-31 02:48:30 +00:00
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/* Setup default IP addresses (`hostname` -> 0.0.0.0) */
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1998-01-29 00:44:16 +00:00
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struct hostent *hp;
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char name[200];
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1998-01-29 23:11:44 +00:00
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memset(&IpcpInfo.DefMyAddress, '\0', sizeof IpcpInfo.DefMyAddress);
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memset(&IpcpInfo.DefHisAddress, '\0', sizeof IpcpInfo.DefHisAddress);
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IpcpInfo.HaveTriggerAddress = 0;
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1998-01-29 00:44:16 +00:00
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if (gethostname(name, sizeof name) == 0) {
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hp = gethostbyname(name);
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1998-01-29 23:11:44 +00:00
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if (hp && hp->h_addrtype == AF_INET)
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memcpy(&IpcpInfo.DefMyAddress.ipaddr.s_addr, hp->h_addr, hp->h_length);
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1998-01-29 00:44:16 +00:00
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}
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}
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int
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SetInitVJ(struct cmdargs const *args)
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{
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if (args->argc != 2)
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return -1;
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if (!strcasecmp(args->argv[0], "slots")) {
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int slots;
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slots = atoi(args->argv[1]);
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if (slots < 4 || slots > 16)
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return 1;
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1998-01-29 23:11:44 +00:00
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IpcpInfo.VJInitSlots = slots;
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1998-01-29 00:44:16 +00:00
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return 0;
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} else if (!strcasecmp(args->argv[0], "slotcomp")) {
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if (!strcasecmp(args->argv[1], "on"))
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1998-01-29 23:11:44 +00:00
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IpcpInfo.VJInitComp = 1;
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1998-01-29 00:44:16 +00:00
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else if (!strcasecmp(args->argv[1], "off"))
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1998-01-29 23:11:44 +00:00
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IpcpInfo.VJInitComp = 0;
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1998-01-29 00:44:16 +00:00
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else
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return 2;
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return 0;
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}
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return -1;
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}
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void
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1998-02-02 19:32:16 +00:00
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IpcpInit(struct bundle *bundle, struct link *l)
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1998-01-29 00:44:16 +00:00
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{
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1998-01-31 02:48:30 +00:00
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/* Initialise ourselves */
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1998-02-02 19:32:16 +00:00
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FsmInit(&IpcpInfo.fsm, bundle, l);
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1998-01-29 23:11:44 +00:00
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if (iplist_isvalid(&IpcpInfo.DefHisChoice))
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iplist_setrandpos(&IpcpInfo.DefHisChoice);
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IpcpInfo.his_compproto = 0;
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IpcpInfo.his_reject = IpcpInfo.my_reject = 0;
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1998-01-29 00:44:16 +00:00
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if ((mode & MODE_DEDICATED) && !GetLabel()) {
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1998-01-29 23:11:44 +00:00
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IpcpInfo.want_ipaddr.s_addr = IpcpInfo.his_ipaddr.s_addr = INADDR_ANY;
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IpcpInfo.his_ipaddr.s_addr = INADDR_ANY;
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1998-01-29 00:44:16 +00:00
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} else {
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1998-01-29 23:11:44 +00:00
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IpcpInfo.want_ipaddr.s_addr = IpcpInfo.DefMyAddress.ipaddr.s_addr;
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IpcpInfo.his_ipaddr.s_addr = IpcpInfo.DefHisAddress.ipaddr.s_addr;
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1998-01-29 00:44:16 +00:00
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}
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/*
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* Some implementations of PPP require that we send a
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* *special* value as our address, even though the rfc specifies
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* full negotiation (e.g. "0.0.0.0" or Not "0.0.0.0").
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*/
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1998-01-29 23:11:44 +00:00
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if (IpcpInfo.HaveTriggerAddress) {
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IpcpInfo.want_ipaddr.s_addr = IpcpInfo.TriggerAddress.s_addr;
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LogPrintf(LogIPCP, "Using trigger address %s\n",
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inet_ntoa(IpcpInfo.TriggerAddress));
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1998-01-29 00:44:16 +00:00
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}
|
1998-02-07 20:50:08 +00:00
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IpcpInfo.if_mine.s_addr = IpcpInfo.if_peer.s_addr = INADDR_ANY;
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1998-01-29 23:11:44 +00:00
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1998-01-29 00:44:16 +00:00
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if (Enabled(ConfVjcomp))
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1998-01-29 23:11:44 +00:00
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IpcpInfo.want_compproto = (PROTO_VJCOMP << 16) +
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((IpcpInfo.VJInitSlots - 1) << 8) +
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IpcpInfo.VJInitComp;
|
1998-01-29 00:44:16 +00:00
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else
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IpcpInfo.want_compproto = 0;
|
1998-02-02 19:33:40 +00:00
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VjInit(IpcpInfo.VJInitSlots - 1);
|
1998-01-29 23:11:44 +00:00
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|
1998-01-29 00:44:16 +00:00
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IpcpInfo.heis1172 = 0;
|
1998-01-31 02:48:30 +00:00
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IpcpInfo.fsm.maxconfig = 10;
|
1998-01-29 23:11:44 +00:00
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throughput_init(&IpcpInfo.throughput);
|
1998-01-29 00:44:16 +00:00
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}
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|
1998-02-07 20:50:08 +00:00
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static int
|
1998-02-08 11:05:01 +00:00
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ipcp_SetIPaddress(struct bundle *bundle, struct ipcp *ipcp,
|
1998-02-07 20:50:08 +00:00
|
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|
struct in_addr myaddr, struct in_addr hisaddr,
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struct in_addr netmask, int silent)
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|
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{
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struct sockaddr_in *sock_in;
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int s;
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u_long mask, addr;
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|
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struct ifaliasreq ifra;
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|
/* If given addresses are alreay set, then ignore this request */
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|
if (ipcp->if_mine.s_addr == myaddr.s_addr &&
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ipcp->if_peer.s_addr == hisaddr.s_addr)
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|
return 0;
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|
s = ID0socket(AF_INET, SOCK_DGRAM, 0);
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|
|
if (s < 0) {
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|
|
LogPrintf(LogERROR, "SetIpDevice: socket(): %s\n", strerror(errno));
|
|
|
|
return (-1);
|
|
|
|
}
|
|
|
|
|
|
|
|
memset(&ifra, '\0', sizeof ifra);
|
|
|
|
strncpy(ifra.ifra_name, bundle->ifname, sizeof ifra.ifra_name - 1);
|
|
|
|
ifra.ifra_name[sizeof ifra.ifra_name - 1] = '\0';
|
|
|
|
|
|
|
|
/* If different address has been set, then delete it first */
|
|
|
|
if (ipcp->if_mine.s_addr != INADDR_ANY ||
|
|
|
|
ipcp->if_peer.s_addr != INADDR_ANY)
|
|
|
|
if (ID0ioctl(s, SIOCDIFADDR, &ifra) < 0) {
|
|
|
|
LogPrintf(LogERROR, "SetIpDevice: ioctl(SIOCDIFADDR): %s\n",
|
|
|
|
strerror(errno));
|
|
|
|
close(s);
|
|
|
|
return (-1);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Set interface address */
|
|
|
|
sock_in = (struct sockaddr_in *)&ifra.ifra_addr;
|
|
|
|
sock_in->sin_family = AF_INET;
|
|
|
|
sock_in->sin_addr = myaddr;
|
|
|
|
sock_in->sin_len = sizeof *sock_in;
|
|
|
|
|
|
|
|
/* Set destination address */
|
|
|
|
sock_in = (struct sockaddr_in *)&ifra.ifra_broadaddr;
|
|
|
|
sock_in->sin_family = AF_INET;
|
|
|
|
sock_in->sin_addr = hisaddr;
|
|
|
|
sock_in->sin_len = sizeof *sock_in;
|
|
|
|
|
|
|
|
addr = ntohl(myaddr.s_addr);
|
|
|
|
if (IN_CLASSA(addr))
|
|
|
|
mask = IN_CLASSA_NET;
|
|
|
|
else if (IN_CLASSB(addr))
|
|
|
|
mask = IN_CLASSB_NET;
|
|
|
|
else
|
|
|
|
mask = IN_CLASSC_NET;
|
|
|
|
|
|
|
|
/* if subnet mask is given, use it instead of class mask */
|
|
|
|
if (netmask.s_addr != INADDR_ANY && (ntohl(netmask.s_addr) & mask) == mask)
|
|
|
|
mask = ntohl(netmask.s_addr);
|
|
|
|
|
|
|
|
sock_in = (struct sockaddr_in *)&ifra.ifra_mask;
|
|
|
|
sock_in->sin_family = AF_INET;
|
|
|
|
sock_in->sin_addr.s_addr = htonl(mask);
|
|
|
|
sock_in->sin_len = sizeof *sock_in;
|
|
|
|
|
|
|
|
if (ID0ioctl(s, SIOCAIFADDR, &ifra) < 0) {
|
|
|
|
if (!silent)
|
|
|
|
LogPrintf(LogERROR, "SetIpDevice: ioctl(SIOCAIFADDR): %s\n",
|
|
|
|
strerror(errno));
|
|
|
|
close(s);
|
|
|
|
return (-1);
|
|
|
|
}
|
|
|
|
|
|
|
|
ipcp->if_peer.s_addr = hisaddr.s_addr;
|
|
|
|
ipcp->if_mine.s_addr = myaddr.s_addr;
|
|
|
|
|
|
|
|
if (Enabled(ConfProxy))
|
|
|
|
sifproxyarp(bundle, ipcp, s);
|
|
|
|
|
|
|
|
close(s);
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
|
|
|
|
static struct in_addr
|
1998-02-08 11:05:01 +00:00
|
|
|
ChooseHisAddr(struct bundle *bundle, struct ipcp *ipcp,
|
1998-02-07 20:50:08 +00:00
|
|
|
const struct in_addr gw)
|
|
|
|
{
|
|
|
|
struct in_addr try;
|
|
|
|
int f;
|
|
|
|
|
|
|
|
for (f = 0; f < IpcpInfo.DefHisChoice.nItems; f++) {
|
|
|
|
try = iplist_next(&IpcpInfo.DefHisChoice);
|
|
|
|
LogPrintf(LogDEBUG, "ChooseHisAddr: Check item %d (%s)\n",
|
|
|
|
f, inet_ntoa(try));
|
|
|
|
if (ipcp_SetIPaddress(bundle, ipcp, gw, try, ifnetmask, 1) == 0) {
|
|
|
|
LogPrintf(LogIPCP, "ChooseHisAddr: Selected IP address %s\n",
|
|
|
|
inet_ntoa(try));
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (f == IpcpInfo.DefHisChoice.nItems) {
|
|
|
|
LogPrintf(LogDEBUG, "ChooseHisAddr: All addresses in use !\n");
|
|
|
|
try.s_addr = INADDR_ANY;
|
|
|
|
}
|
|
|
|
|
|
|
|
return try;
|
|
|
|
}
|
|
|
|
|
1998-01-29 00:44:16 +00:00
|
|
|
static void
|
|
|
|
IpcpInitRestartCounter(struct fsm * fp)
|
|
|
|
{
|
1998-01-31 02:48:30 +00:00
|
|
|
/* Set fsm timer load */
|
1998-01-29 00:44:16 +00:00
|
|
|
fp->FsmTimer.load = VarRetryTimeout * SECTICKS;
|
|
|
|
fp->restart = 5;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
1998-01-30 19:46:07 +00:00
|
|
|
IpcpSendConfigReq(struct fsm *fp)
|
1998-01-29 00:44:16 +00:00
|
|
|
{
|
1998-01-31 02:48:30 +00:00
|
|
|
/* Send config REQ please */
|
1998-01-30 19:46:07 +00:00
|
|
|
struct physical *p = link2physical(fp->link);
|
1998-02-08 11:05:01 +00:00
|
|
|
struct ipcp *ipcp = fsm2ipcp(fp);
|
1998-01-29 00:44:16 +00:00
|
|
|
u_char *cp;
|
|
|
|
struct lcp_opt o;
|
|
|
|
|
|
|
|
cp = ReqBuff;
|
|
|
|
LogPrintf(LogIPCP, "IpcpSendConfigReq\n");
|
1998-02-06 02:24:29 +00:00
|
|
|
if ((p && !Physical_IsSync(p)) || !REJECTED(ipcp, TY_IPADDR)) {
|
1998-01-29 00:44:16 +00:00
|
|
|
o.id = TY_IPADDR;
|
|
|
|
o.len = 6;
|
1998-02-06 02:24:29 +00:00
|
|
|
*(u_long *)o.data = ipcp->want_ipaddr.s_addr;
|
1998-01-29 00:44:16 +00:00
|
|
|
cp += LcpPutConf(LogIPCP, cp, &o, cftypes[o.id],
|
1998-02-06 02:24:29 +00:00
|
|
|
inet_ntoa(ipcp->want_ipaddr));
|
1998-01-29 00:44:16 +00:00
|
|
|
}
|
|
|
|
|
1998-02-06 02:24:29 +00:00
|
|
|
if (ipcp->want_compproto && !REJECTED(ipcp, TY_COMPPROTO)) {
|
1998-01-29 00:44:16 +00:00
|
|
|
const char *args;
|
|
|
|
o.id = TY_COMPPROTO;
|
1998-02-06 02:24:29 +00:00
|
|
|
if (ipcp->heis1172) {
|
1998-01-29 00:44:16 +00:00
|
|
|
o.len = 4;
|
|
|
|
*(u_short *)o.data = htons(PROTO_VJCOMP);
|
|
|
|
args = "";
|
|
|
|
} else {
|
|
|
|
o.len = 6;
|
1998-02-06 02:24:29 +00:00
|
|
|
*(u_long *)o.data = htonl(ipcp->want_compproto);
|
|
|
|
args = vj2asc(ipcp->want_compproto);
|
1998-01-29 00:44:16 +00:00
|
|
|
}
|
|
|
|
cp += LcpPutConf(LogIPCP, cp, &o, cftypes[o.id], args);
|
|
|
|
}
|
|
|
|
FsmOutput(fp, CODE_CONFIGREQ, fp->reqid++, ReqBuff, cp - ReqBuff);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
IpcpSendTerminateReq(struct fsm * fp)
|
|
|
|
{
|
1998-01-31 02:48:30 +00:00
|
|
|
/* Term REQ just sent by FSM */
|
1998-01-29 00:44:16 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
IpcpSendTerminateAck(struct fsm * fp)
|
|
|
|
{
|
1998-01-31 02:48:30 +00:00
|
|
|
/* Send Term ACK please */
|
1998-01-29 00:44:16 +00:00
|
|
|
LogPrintf(LogIPCP, "IpcpSendTerminateAck\n");
|
|
|
|
FsmOutput(fp, CODE_TERMACK, fp->reqid++, NULL, 0);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
IpcpLayerStart(struct fsm * fp)
|
|
|
|
{
|
1998-01-31 02:48:30 +00:00
|
|
|
/* We're about to start up ! */
|
1998-01-29 00:44:16 +00:00
|
|
|
LogPrintf(LogIPCP, "IpcpLayerStart.\n");
|
1998-02-07 20:50:08 +00:00
|
|
|
|
|
|
|
/* This is where we should be setting up the interface in AUTO mode */
|
1998-01-29 00:44:16 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
1998-02-07 20:50:08 +00:00
|
|
|
IpcpLayerFinish(struct fsm *fp)
|
1998-01-29 00:44:16 +00:00
|
|
|
{
|
1998-01-31 02:48:30 +00:00
|
|
|
/* We're now down */
|
1998-01-29 00:44:16 +00:00
|
|
|
LogPrintf(LogIPCP, "IpcpLayerFinish.\n");
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
1998-02-06 02:24:29 +00:00
|
|
|
IpcpLayerDown(struct fsm *fp)
|
1998-01-29 00:44:16 +00:00
|
|
|
{
|
1998-01-31 02:48:30 +00:00
|
|
|
/* About to come down */
|
1998-02-08 11:05:01 +00:00
|
|
|
struct ipcp *ipcp = fsm2ipcp(fp);
|
1998-02-07 20:50:08 +00:00
|
|
|
const char *s;
|
|
|
|
|
|
|
|
s = inet_ntoa(ipcp->if_peer);
|
|
|
|
LogPrintf(LogIsKept(LogLINK) ? LogLINK : LogIPCP, "IpcpLayerDown: %s\n", s);
|
|
|
|
|
1998-02-06 02:24:29 +00:00
|
|
|
throughput_stop(&ipcp->throughput);
|
|
|
|
throughput_log(&ipcp->throughput, LogIPCP, NULL);
|
1998-02-07 20:50:08 +00:00
|
|
|
|
|
|
|
/*
|
|
|
|
* XXX this stuff should really live in the FSM. Our config should
|
|
|
|
* associate executable sections in files with events.
|
|
|
|
*/
|
|
|
|
if (SelectSystem(fp->bundle, s, LINKDOWNFILE) < 0)
|
|
|
|
if (GetLabel()) {
|
|
|
|
if (SelectSystem(fp->bundle, GetLabel(), LINKDOWNFILE) < 0)
|
|
|
|
SelectSystem(fp->bundle, "MYADDR", LINKDOWNFILE);
|
|
|
|
} else
|
|
|
|
SelectSystem(fp->bundle, "MYADDR", LINKDOWNFILE);
|
|
|
|
|
|
|
|
if (!(mode & MODE_AUTO)) {
|
|
|
|
struct ifaliasreq ifra;
|
|
|
|
int s;
|
|
|
|
|
|
|
|
s = ID0socket(AF_INET, SOCK_DGRAM, 0);
|
|
|
|
if (s < 0) {
|
|
|
|
LogPrintf(LogERROR, "IpcpLayerDown: socket: %s\n", strerror(errno));
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (Enabled(ConfProxy))
|
|
|
|
cifproxyarp(fp->bundle, ipcp, s);
|
|
|
|
|
|
|
|
if (ipcp->if_mine.s_addr != INADDR_ANY ||
|
|
|
|
ipcp->if_peer.s_addr != INADDR_ANY) {
|
|
|
|
memset(&ifra, '\0', sizeof ifra);
|
|
|
|
strncpy(ifra.ifra_name, fp->bundle->ifname, sizeof ifra.ifra_name - 1);
|
|
|
|
ifra.ifra_name[sizeof ifra.ifra_name - 1] = '\0';
|
|
|
|
/* XXX don't delete things belonging to other NCPs */
|
|
|
|
if (ID0ioctl(s, SIOCDIFADDR, &ifra) < 0) {
|
|
|
|
LogPrintf(LogERROR, "IpcpLayerDown: ioctl(SIOCDIFADDR): %s\n",
|
|
|
|
strerror(errno));
|
|
|
|
close(s);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
ipcp->if_mine.s_addr = ipcp->if_peer.s_addr = INADDR_ANY;
|
|
|
|
}
|
|
|
|
|
|
|
|
close(s);
|
|
|
|
return;
|
|
|
|
}
|
1998-01-29 00:44:16 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
1998-02-02 19:32:16 +00:00
|
|
|
IpcpLayerUp(struct fsm *fp)
|
1998-01-29 00:44:16 +00:00
|
|
|
{
|
1998-01-31 02:48:30 +00:00
|
|
|
/* We're now up */
|
1998-02-08 11:05:01 +00:00
|
|
|
struct ipcp *ipcp = fsm2ipcp(fp);
|
1998-01-29 00:44:16 +00:00
|
|
|
char tbuff[100];
|
|
|
|
|
|
|
|
LogPrintf(LogIPCP, "IpcpLayerUp(%d).\n", fp->state);
|
1998-02-06 02:24:29 +00:00
|
|
|
snprintf(tbuff, sizeof tbuff, "myaddr = %s ", inet_ntoa(ipcp->want_ipaddr));
|
1998-02-07 20:50:08 +00:00
|
|
|
LogPrintf(LogIsKept(LogIPCP) ? LogIPCP : LogLINK, " %s hisaddr = %s\n",
|
|
|
|
tbuff, inet_ntoa(ipcp->his_ipaddr));
|
1998-01-29 00:44:16 +00:00
|
|
|
|
1998-02-06 02:24:29 +00:00
|
|
|
if (ipcp->his_compproto >> 16 == PROTO_VJCOMP)
|
|
|
|
VjInit((ipcp->his_compproto >> 8) & 255);
|
1998-01-29 00:44:16 +00:00
|
|
|
|
1998-02-07 20:50:08 +00:00
|
|
|
if (ipcp_SetIPaddress(fp->bundle, ipcp, ipcp->want_ipaddr,
|
|
|
|
ipcp->his_ipaddr, ifnetmask, 0) < 0) {
|
1998-01-29 00:44:16 +00:00
|
|
|
if (VarTerm)
|
|
|
|
LogPrintf(LogERROR, "IpcpLayerUp: unable to set ip address\n");
|
|
|
|
return;
|
|
|
|
}
|
1998-02-07 20:50:08 +00:00
|
|
|
|
1998-01-29 00:44:16 +00:00
|
|
|
#ifndef NOALIAS
|
|
|
|
if (mode & MODE_ALIAS)
|
1998-02-06 02:24:29 +00:00
|
|
|
VarPacketAliasSetAddress(ipcp->want_ipaddr);
|
1998-01-29 00:44:16 +00:00
|
|
|
#endif
|
1998-02-07 20:50:08 +00:00
|
|
|
|
|
|
|
LogPrintf(LogIsKept(LogLINK) ? LogLINK : LogIPCP, "IpcpLayerUp: %s\n",
|
|
|
|
inet_ntoa(ipcp->if_peer));
|
|
|
|
|
|
|
|
/*
|
|
|
|
* XXX this stuff should really live in the FSM. Our config should
|
|
|
|
* associate executable sections in files with events.
|
|
|
|
*/
|
|
|
|
if (SelectSystem(fp->bundle, inet_ntoa(ipcp->if_mine), LINKUPFILE) < 0)
|
|
|
|
if (GetLabel()) {
|
|
|
|
if (SelectSystem(fp->bundle, GetLabel(), LINKUPFILE) < 0)
|
|
|
|
SelectSystem(fp->bundle, "MYADDR", LINKUPFILE);
|
|
|
|
} else
|
|
|
|
SelectSystem(fp->bundle, "MYADDR", LINKUPFILE);
|
|
|
|
|
1998-02-06 02:24:29 +00:00
|
|
|
throughput_start(&ipcp->throughput);
|
1998-01-29 00:44:16 +00:00
|
|
|
StartIdleTimer();
|
1998-02-07 20:50:08 +00:00
|
|
|
Prompt(fp->bundle);
|
1998-01-29 00:44:16 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
IpcpUp()
|
|
|
|
{
|
1998-01-31 02:48:30 +00:00
|
|
|
/* Lower layers are ready.... go */
|
|
|
|
FsmUp(&IpcpInfo.fsm);
|
1998-01-29 00:44:16 +00:00
|
|
|
LogPrintf(LogIPCP, "IPCP Up event!!\n");
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
IpcpOpen()
|
|
|
|
{
|
1998-01-31 02:48:30 +00:00
|
|
|
/* Start IPCP please */
|
|
|
|
FsmOpen(&IpcpInfo.fsm);
|
1998-01-29 00:44:16 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
1998-01-31 02:48:30 +00:00
|
|
|
AcceptableAddr(struct in_range *prange, struct in_addr ipaddr)
|
1998-01-29 00:44:16 +00:00
|
|
|
{
|
1998-01-31 02:48:30 +00:00
|
|
|
/* Is the given IP in the given range ? */
|
1998-01-29 00:44:16 +00:00
|
|
|
LogPrintf(LogDEBUG, "requested = %x\n", htonl(ipaddr.s_addr));
|
|
|
|
LogPrintf(LogDEBUG, "range = %x\n", htonl(prange->ipaddr.s_addr));
|
|
|
|
LogPrintf(LogDEBUG, "/%x\n", htonl(prange->mask.s_addr));
|
|
|
|
LogPrintf(LogDEBUG, "%x, %x\n", htonl(prange->ipaddr.s_addr & prange->
|
|
|
|
mask.s_addr), htonl(ipaddr.s_addr & prange->mask.s_addr));
|
|
|
|
return (prange->ipaddr.s_addr & prange->mask.s_addr) ==
|
|
|
|
(ipaddr.s_addr & prange->mask.s_addr) && ipaddr.s_addr;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
1998-02-06 02:24:29 +00:00
|
|
|
IpcpDecodeConfig(struct fsm *fp, u_char * cp, int plen, int mode_type)
|
1998-01-29 00:44:16 +00:00
|
|
|
{
|
1998-01-31 02:48:30 +00:00
|
|
|
/* Deal with incoming PROTO_IPCP */
|
1998-02-08 11:05:01 +00:00
|
|
|
struct ipcp *ipcp = fsm2ipcp(fp);
|
1998-01-29 00:44:16 +00:00
|
|
|
int type, length;
|
|
|
|
u_long *lp, compproto;
|
|
|
|
struct compreq *pcomp;
|
|
|
|
struct in_addr ipaddr, dstipaddr, dnsstuff, ms_info_req;
|
|
|
|
char tbuff[100];
|
|
|
|
char tbuff2[100];
|
|
|
|
|
|
|
|
ackp = AckBuff;
|
|
|
|
nakp = NakBuff;
|
|
|
|
rejp = RejBuff;
|
|
|
|
|
|
|
|
while (plen >= sizeof(struct fsmconfig)) {
|
|
|
|
type = *cp;
|
|
|
|
length = cp[1];
|
|
|
|
if (type < NCFTYPES)
|
|
|
|
snprintf(tbuff, sizeof tbuff, " %s[%d] ", cftypes[type], length);
|
|
|
|
else if (type > 128 && type < 128 + NCFTYPES128)
|
|
|
|
snprintf(tbuff, sizeof tbuff, " %s[%d] ", cftypes128[type-128], length);
|
|
|
|
else
|
|
|
|
snprintf(tbuff, sizeof tbuff, " <%d>[%d] ", type, length);
|
|
|
|
|
|
|
|
switch (type) {
|
|
|
|
case TY_IPADDR: /* RFC1332 */
|
|
|
|
lp = (u_long *) (cp + 2);
|
|
|
|
ipaddr.s_addr = *lp;
|
|
|
|
LogPrintf(LogIPCP, "%s %s\n", tbuff, inet_ntoa(ipaddr));
|
|
|
|
|
|
|
|
switch (mode_type) {
|
|
|
|
case MODE_REQ:
|
1998-02-06 02:24:29 +00:00
|
|
|
if (iplist_isvalid(&ipcp->DefHisChoice)) {
|
1998-01-29 00:44:16 +00:00
|
|
|
if (ipaddr.s_addr == INADDR_ANY ||
|
1998-02-06 02:24:29 +00:00
|
|
|
iplist_ip2pos(&ipcp->DefHisChoice, ipaddr) < 0 ||
|
1998-02-07 20:50:08 +00:00
|
|
|
ipcp_SetIPaddress(fp->bundle, ipcp, ipcp->DefMyAddress.ipaddr,
|
|
|
|
ipaddr, ifnetmask, 1)) {
|
1998-01-29 00:44:16 +00:00
|
|
|
LogPrintf(LogIPCP, "%s: Address invalid or already in use\n",
|
|
|
|
inet_ntoa(ipaddr));
|
1998-02-06 02:24:29 +00:00
|
|
|
ipcp->his_ipaddr = ChooseHisAddr
|
1998-02-07 20:50:08 +00:00
|
|
|
(fp->bundle, ipcp, ipcp->DefMyAddress.ipaddr);
|
1998-02-06 02:24:29 +00:00
|
|
|
if (ipcp->his_ipaddr.s_addr == INADDR_ANY) {
|
1998-01-29 00:44:16 +00:00
|
|
|
memcpy(rejp, cp, length);
|
|
|
|
rejp += length;
|
|
|
|
} else {
|
|
|
|
memcpy(nakp, cp, 2);
|
1998-02-06 02:24:29 +00:00
|
|
|
memcpy(nakp+2, &ipcp->his_ipaddr.s_addr, length - 2);
|
1998-01-29 00:44:16 +00:00
|
|
|
nakp += length;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
}
|
1998-02-06 02:24:29 +00:00
|
|
|
} else if (!AcceptableAddr(&ipcp->DefHisAddress, ipaddr)) {
|
1998-01-29 00:44:16 +00:00
|
|
|
/*
|
|
|
|
* If destination address is not acceptable, insist to use what we
|
|
|
|
* want to use.
|
|
|
|
*/
|
|
|
|
memcpy(nakp, cp, 2);
|
1998-02-06 02:24:29 +00:00
|
|
|
memcpy(nakp+2, &ipcp->his_ipaddr.s_addr, length - 2);
|
1998-01-29 00:44:16 +00:00
|
|
|
nakp += length;
|
|
|
|
break;
|
|
|
|
}
|
1998-02-06 02:24:29 +00:00
|
|
|
ipcp->his_ipaddr = ipaddr;
|
1998-01-29 00:44:16 +00:00
|
|
|
memcpy(ackp, cp, length);
|
|
|
|
ackp += length;
|
|
|
|
break;
|
|
|
|
case MODE_NAK:
|
1998-02-06 02:24:29 +00:00
|
|
|
if (AcceptableAddr(&ipcp->DefMyAddress, ipaddr)) {
|
1998-01-29 00:44:16 +00:00
|
|
|
/* Use address suggested by peer */
|
|
|
|
snprintf(tbuff2, sizeof tbuff2, "%s changing address: %s ", tbuff,
|
1998-02-06 02:24:29 +00:00
|
|
|
inet_ntoa(ipcp->want_ipaddr));
|
1998-01-29 00:44:16 +00:00
|
|
|
LogPrintf(LogIPCP, "%s --> %s\n", tbuff2, inet_ntoa(ipaddr));
|
1998-02-06 02:24:29 +00:00
|
|
|
ipcp->want_ipaddr = ipaddr;
|
1998-01-29 00:44:16 +00:00
|
|
|
} else {
|
|
|
|
LogPrintf(LogIPCP, "%s: Unacceptable address!\n", inet_ntoa(ipaddr));
|
1998-02-06 02:24:29 +00:00
|
|
|
FsmClose(&ipcp->fsm);
|
1998-01-29 00:44:16 +00:00
|
|
|
}
|
|
|
|
break;
|
|
|
|
case MODE_REJ:
|
1998-02-06 02:24:29 +00:00
|
|
|
ipcp->his_reject |= (1 << type);
|
1998-01-29 00:44:16 +00:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case TY_COMPPROTO:
|
|
|
|
lp = (u_long *) (cp + 2);
|
|
|
|
compproto = htonl(*lp);
|
|
|
|
LogPrintf(LogIPCP, "%s %s\n", tbuff, vj2asc(compproto));
|
|
|
|
|
|
|
|
switch (mode_type) {
|
|
|
|
case MODE_REQ:
|
|
|
|
if (!Acceptable(ConfVjcomp)) {
|
|
|
|
memcpy(rejp, cp, length);
|
|
|
|
rejp += length;
|
|
|
|
} else {
|
|
|
|
pcomp = (struct compreq *) (cp + 2);
|
|
|
|
switch (length) {
|
|
|
|
case 4: /* RFC1172 */
|
|
|
|
if (ntohs(pcomp->proto) == PROTO_VJCOMP) {
|
|
|
|
LogPrintf(LogWARN, "Peer is speaking RFC1172 compression protocol !\n");
|
1998-02-06 02:24:29 +00:00
|
|
|
ipcp->heis1172 = 1;
|
|
|
|
ipcp->his_compproto = compproto;
|
1998-01-29 00:44:16 +00:00
|
|
|
memcpy(ackp, cp, length);
|
|
|
|
ackp += length;
|
|
|
|
} else {
|
|
|
|
memcpy(nakp, cp, 2);
|
|
|
|
pcomp->proto = htons(PROTO_VJCOMP);
|
|
|
|
memcpy(nakp+2, &pcomp, 2);
|
|
|
|
nakp += length;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case 6: /* RFC1332 */
|
|
|
|
if (ntohs(pcomp->proto) == PROTO_VJCOMP
|
1998-01-29 23:11:44 +00:00
|
|
|
&& pcomp->slots < MAX_VJ_STATES && pcomp->slots > 2) {
|
1998-02-06 02:24:29 +00:00
|
|
|
ipcp->his_compproto = compproto;
|
|
|
|
ipcp->heis1172 = 0;
|
1998-01-29 00:44:16 +00:00
|
|
|
memcpy(ackp, cp, length);
|
|
|
|
ackp += length;
|
|
|
|
} else {
|
|
|
|
memcpy(nakp, cp, 2);
|
|
|
|
pcomp->proto = htons(PROTO_VJCOMP);
|
1998-01-29 23:11:44 +00:00
|
|
|
pcomp->slots = MAX_VJ_STATES - 1;
|
1998-01-29 00:44:16 +00:00
|
|
|
pcomp->compcid = 0;
|
|
|
|
memcpy(nakp+2, &pcomp, sizeof pcomp);
|
|
|
|
nakp += length;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
memcpy(rejp, cp, length);
|
|
|
|
rejp += length;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case MODE_NAK:
|
|
|
|
LogPrintf(LogIPCP, "%s changing compproto: %08x --> %08x\n",
|
1998-02-06 02:24:29 +00:00
|
|
|
tbuff, ipcp->want_compproto, compproto);
|
|
|
|
ipcp->want_compproto = compproto;
|
1998-01-29 00:44:16 +00:00
|
|
|
break;
|
|
|
|
case MODE_REJ:
|
1998-02-06 02:24:29 +00:00
|
|
|
ipcp->his_reject |= (1 << type);
|
1998-01-29 00:44:16 +00:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case TY_IPADDRS: /* RFC1172 */
|
|
|
|
lp = (u_long *) (cp + 2);
|
|
|
|
ipaddr.s_addr = *lp;
|
|
|
|
lp = (u_long *) (cp + 6);
|
|
|
|
dstipaddr.s_addr = *lp;
|
|
|
|
snprintf(tbuff2, sizeof tbuff2, "%s %s,", tbuff, inet_ntoa(ipaddr));
|
|
|
|
LogPrintf(LogIPCP, "%s %s\n", tbuff2, inet_ntoa(dstipaddr));
|
|
|
|
|
|
|
|
switch (mode_type) {
|
|
|
|
case MODE_REQ:
|
1998-02-06 02:24:29 +00:00
|
|
|
ipcp->his_ipaddr = ipaddr;
|
|
|
|
ipcp->want_ipaddr = dstipaddr;
|
1998-01-29 00:44:16 +00:00
|
|
|
memcpy(ackp, cp, length);
|
|
|
|
ackp += length;
|
|
|
|
break;
|
|
|
|
case MODE_NAK:
|
|
|
|
snprintf(tbuff2, sizeof tbuff2, "%s changing address: %s", tbuff,
|
1998-02-06 02:24:29 +00:00
|
|
|
inet_ntoa(ipcp->want_ipaddr));
|
1998-01-29 00:44:16 +00:00
|
|
|
LogPrintf(LogIPCP, "%s --> %s\n", tbuff2, inet_ntoa(ipaddr));
|
1998-02-06 02:24:29 +00:00
|
|
|
ipcp->want_ipaddr = ipaddr;
|
|
|
|
ipcp->his_ipaddr = dstipaddr;
|
1998-01-29 00:44:16 +00:00
|
|
|
break;
|
|
|
|
case MODE_REJ:
|
1998-02-06 02:24:29 +00:00
|
|
|
ipcp->his_reject |= (1 << type);
|
1998-01-29 00:44:16 +00:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* MS extensions for MS's PPP
|
|
|
|
*/
|
|
|
|
|
|
|
|
#ifndef NOMSEXT
|
|
|
|
case TY_PRIMARY_DNS: /* MS PPP DNS negotiation hack */
|
|
|
|
case TY_SECONDARY_DNS:
|
|
|
|
if (!Enabled(ConfMSExt)) {
|
|
|
|
LogPrintf(LogIPCP, "MS NS req - rejected - msext disabled\n");
|
1998-02-06 02:24:29 +00:00
|
|
|
ipcp->my_reject |= (1 << type);
|
1998-01-29 00:44:16 +00:00
|
|
|
memcpy(rejp, cp, length);
|
|
|
|
rejp += length;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
switch (mode_type) {
|
|
|
|
case MODE_REQ:
|
|
|
|
lp = (u_long *) (cp + 2);
|
|
|
|
dnsstuff.s_addr = *lp;
|
1998-02-06 02:24:29 +00:00
|
|
|
ms_info_req.s_addr = ipcp->ns_entries
|
1998-01-29 23:11:44 +00:00
|
|
|
[(type - TY_PRIMARY_DNS) ? 1 : 0].s_addr;
|
1998-01-29 00:44:16 +00:00
|
|
|
if (dnsstuff.s_addr != ms_info_req.s_addr) {
|
|
|
|
|
|
|
|
/*
|
|
|
|
* So the client has got the DNS stuff wrong (first request) so
|
|
|
|
* we'll tell 'em how it is
|
|
|
|
*/
|
|
|
|
memcpy(nakp, cp, 2); /* copy first two (type/length) */
|
|
|
|
LogPrintf(LogIPCP, "MS NS req %d:%s->%s - nak\n",
|
|
|
|
type,
|
|
|
|
inet_ntoa(dnsstuff),
|
|
|
|
inet_ntoa(ms_info_req));
|
|
|
|
memcpy(nakp+2, &ms_info_req, length);
|
|
|
|
nakp += length;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Otherwise they have it right (this time) so we send a ack packet
|
|
|
|
* back confirming it... end of story
|
|
|
|
*/
|
|
|
|
LogPrintf(LogIPCP, "MS NS req %d:%s ok - ack\n",
|
|
|
|
type,
|
|
|
|
inet_ntoa(ms_info_req));
|
|
|
|
memcpy(ackp, cp, length);
|
|
|
|
ackp += length;
|
|
|
|
break;
|
|
|
|
case MODE_NAK: /* what does this mean?? */
|
|
|
|
LogPrintf(LogIPCP, "MS NS req %d - NAK??\n", type);
|
|
|
|
break;
|
|
|
|
case MODE_REJ: /* confused?? me to :) */
|
|
|
|
LogPrintf(LogIPCP, "MS NS req %d - REJ??\n", type);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
case TY_PRIMARY_NBNS: /* MS PPP NetBIOS nameserver hack */
|
|
|
|
case TY_SECONDARY_NBNS:
|
|
|
|
if (!Enabled(ConfMSExt)) {
|
|
|
|
LogPrintf(LogIPCP, "MS NBNS req - rejected - msext disabled\n");
|
1998-02-06 02:24:29 +00:00
|
|
|
ipcp->my_reject |= (1 << type);
|
1998-01-29 00:44:16 +00:00
|
|
|
memcpy(rejp, cp, length);
|
|
|
|
rejp += length;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
switch (mode_type) {
|
|
|
|
case MODE_REQ:
|
|
|
|
lp = (u_long *) (cp + 2);
|
|
|
|
dnsstuff.s_addr = *lp;
|
1998-02-06 02:24:29 +00:00
|
|
|
ms_info_req.s_addr = ipcp->nbns_entries
|
1998-01-29 23:11:44 +00:00
|
|
|
[(type - TY_PRIMARY_NBNS) ? 1 : 0].s_addr;
|
1998-01-29 00:44:16 +00:00
|
|
|
if (dnsstuff.s_addr != ms_info_req.s_addr) {
|
|
|
|
memcpy(nakp, cp, 2);
|
|
|
|
memcpy(nakp+2, &ms_info_req.s_addr, length);
|
|
|
|
LogPrintf(LogIPCP, "MS NBNS req %d:%s->%s - nak\n",
|
|
|
|
type,
|
|
|
|
inet_ntoa(dnsstuff),
|
|
|
|
inet_ntoa(ms_info_req));
|
|
|
|
nakp += length;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
LogPrintf(LogIPCP, "MS NBNS req %d:%s ok - ack\n",
|
|
|
|
type,
|
|
|
|
inet_ntoa(ms_info_req));
|
|
|
|
memcpy(ackp, cp, length);
|
|
|
|
ackp += length;
|
|
|
|
break;
|
|
|
|
case MODE_NAK:
|
|
|
|
LogPrintf(LogIPCP, "MS NBNS req %d - NAK??\n", type);
|
|
|
|
break;
|
|
|
|
case MODE_REJ:
|
|
|
|
LogPrintf(LogIPCP, "MS NBNS req %d - REJ??\n", type);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
default:
|
1998-02-06 02:24:29 +00:00
|
|
|
ipcp->my_reject |= (1 << type);
|
1998-01-29 00:44:16 +00:00
|
|
|
memcpy(rejp, cp, length);
|
|
|
|
rejp += length;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
plen -= length;
|
|
|
|
cp += length;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
IpcpInput(struct mbuf * bp)
|
|
|
|
{
|
1998-01-31 02:48:30 +00:00
|
|
|
/* Got PROTO_IPCP from link */
|
|
|
|
FsmInput(&IpcpInfo.fsm, bp);
|
1998-01-29 00:44:16 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
int
|
1998-02-02 19:32:16 +00:00
|
|
|
UseHisaddr(struct bundle *bundle, const char *hisaddr, int setaddr)
|
1998-01-29 00:44:16 +00:00
|
|
|
{
|
1998-01-31 02:48:30 +00:00
|
|
|
/* Use `hisaddr' for the peers address (set iface if `setaddr') */
|
1998-01-29 23:11:44 +00:00
|
|
|
memset(&IpcpInfo.DefHisAddress, '\0', sizeof IpcpInfo.DefHisAddress);
|
|
|
|
iplist_reset(&IpcpInfo.DefHisChoice);
|
1998-01-29 00:44:16 +00:00
|
|
|
if (strpbrk(hisaddr, ",-")) {
|
1998-01-29 23:11:44 +00:00
|
|
|
iplist_setsrc(&IpcpInfo.DefHisChoice, hisaddr);
|
|
|
|
if (iplist_isvalid(&IpcpInfo.DefHisChoice)) {
|
|
|
|
iplist_setrandpos(&IpcpInfo.DefHisChoice);
|
1998-02-07 20:50:08 +00:00
|
|
|
IpcpInfo.his_ipaddr = ChooseHisAddr
|
|
|
|
(bundle, &IpcpInfo, IpcpInfo.want_ipaddr);
|
1998-01-29 00:44:16 +00:00
|
|
|
if (IpcpInfo.his_ipaddr.s_addr == INADDR_ANY) {
|
1998-01-29 23:11:44 +00:00
|
|
|
LogPrintf(LogWARN, "%s: None available !\n", IpcpInfo.DefHisChoice.src);
|
1998-01-29 00:44:16 +00:00
|
|
|
return(0);
|
|
|
|
}
|
1998-01-29 23:11:44 +00:00
|
|
|
IpcpInfo.DefHisAddress.ipaddr.s_addr = IpcpInfo.his_ipaddr.s_addr;
|
|
|
|
IpcpInfo.DefHisAddress.mask.s_addr = INADDR_BROADCAST;
|
|
|
|
IpcpInfo.DefHisAddress.width = 32;
|
1998-01-29 00:44:16 +00:00
|
|
|
} else {
|
|
|
|
LogPrintf(LogWARN, "%s: Invalid range !\n", hisaddr);
|
|
|
|
return 0;
|
|
|
|
}
|
1998-01-29 23:11:44 +00:00
|
|
|
} else if (ParseAddr(1, &hisaddr, &IpcpInfo.DefHisAddress.ipaddr,
|
|
|
|
&IpcpInfo.DefHisAddress.mask,
|
|
|
|
&IpcpInfo.DefHisAddress.width) != 0) {
|
|
|
|
IpcpInfo.his_ipaddr.s_addr = IpcpInfo.DefHisAddress.ipaddr.s_addr;
|
1998-01-29 00:44:16 +00:00
|
|
|
|
1998-02-07 20:50:08 +00:00
|
|
|
if (setaddr && ipcp_SetIPaddress(bundle, &IpcpInfo,
|
|
|
|
IpcpInfo.DefMyAddress.ipaddr,
|
|
|
|
IpcpInfo.DefHisAddress.ipaddr, ifnetmask,
|
|
|
|
0) < 0) {
|
1998-01-29 23:11:44 +00:00
|
|
|
IpcpInfo.DefMyAddress.ipaddr.s_addr = INADDR_ANY;
|
|
|
|
IpcpInfo.DefHisAddress.ipaddr.s_addr = INADDR_ANY;
|
1998-01-29 00:44:16 +00:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
} else
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
return 1;
|
|
|
|
}
|