1706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh/*- 2706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * Copyright (c) 1996 - 2001 Brian Somers <brian@Awfulhak.org> 3706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * based on work by Toshiharu OHNO <tony-o@iij.ad.jp> 4706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * Internet Initiative Japan, Inc (IIJ) 5706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * All rights reserved. 6706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * 7706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * Redistribution and use in source and binary forms, with or without 8706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * modification, are permitted provided that the following conditions 9706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * are met: 10706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * 1. Redistributions of source code must retain the above copyright 11706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * notice, this list of conditions and the following disclaimer. 12706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * 2. Redistributions in binary form must reproduce the above copyright 13706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * notice, this list of conditions and the following disclaimer in the 14706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * documentation and/or other materials provided with the distribution. 15706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * 16706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * SUCH DAMAGE. 27706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * 28706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * $FreeBSD: src/usr.sbin/ppp/ccp.c,v 1.78.26.1 2010/12/21 17:10:29 kensmith Exp $ 29706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh */ 30706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 31706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include <sys/param.h> 32706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include <netinet/in.h> 33706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include <netinet/in_systm.h> 34706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include <netinet/ip.h> 35706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include <sys/socket.h> 36706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include <sys/un.h> 37706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 38706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include <stdarg.h> 39706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include <stdio.h> 40706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include <stdlib.h> 41706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include <string.h> /* memcpy() on some archs */ 42706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include <termios.h> 43706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 44706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include "layer.h" 45706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include "defs.h" 46706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include "command.h" 47706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include "mbuf.h" 48706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include "log.h" 49706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include "timer.h" 50706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include "fsm.h" 51706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include "proto.h" 52706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include "pred.h" 53706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include "deflate.h" 54706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include "throughput.h" 55706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include "iplist.h" 56706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include "slcompress.h" 57706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include "lqr.h" 58706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include "hdlc.h" 59706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include "lcp.h" 60706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include "ccp.h" 61706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include "ncpaddr.h" 62706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include "ipcp.h" 63706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include "filter.h" 64706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include "descriptor.h" 65706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include "prompt.h" 66706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include "link.h" 67706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include "mp.h" 68706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include "async.h" 69706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include "physical.h" 70706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#ifndef NORADIUS 71706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include "radius.h" 72706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#endif 73706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#ifndef NODES 74706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include "mppe.h" 75706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#endif 76706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include "ipv6cp.h" 77706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include "ncp.h" 78706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#include "bundle.h" 79706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 80706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yehstatic void CcpSendConfigReq(struct fsm *); 81706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yehstatic void CcpSentTerminateReq(struct fsm *); 82706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yehstatic void CcpSendTerminateAck(struct fsm *, u_char); 83706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yehstatic void CcpDecodeConfig(struct fsm *, u_char *, u_char *, int, 84706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh struct fsm_decode *); 85706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yehstatic void CcpLayerStart(struct fsm *); 86706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yehstatic void CcpLayerFinish(struct fsm *); 87706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yehstatic int CcpLayerUp(struct fsm *); 88706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yehstatic void CcpLayerDown(struct fsm *); 89706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yehstatic void CcpInitRestartCounter(struct fsm *, int); 90706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yehstatic int CcpRecvResetReq(struct fsm *); 91706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yehstatic void CcpRecvResetAck(struct fsm *, u_char); 92706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 93706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yehstatic struct fsm_callbacks ccp_Callbacks = { 94706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh CcpLayerUp, 95706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh CcpLayerDown, 96706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh CcpLayerStart, 97706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh CcpLayerFinish, 98706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh CcpInitRestartCounter, 99706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh CcpSendConfigReq, 100706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh CcpSentTerminateReq, 101706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh CcpSendTerminateAck, 102706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh CcpDecodeConfig, 103706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh CcpRecvResetReq, 104706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh CcpRecvResetAck 105706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh}; 106706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 107706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yehstatic const char * const ccp_TimerNames[] = 108706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh {"CCP restart", "CCP openmode", "CCP stopped"}; 109706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 110706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yehstatic const char * 111706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yehprotoname(int proto) 112706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh{ 113706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh static char const * const cftypes[] = { 114706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh /* Check out the latest ``Compression Control Protocol'' rfc (1962) */ 115706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh "OUI", /* 0: OUI */ 116706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh "PRED1", /* 1: Predictor type 1 */ 117706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh "PRED2", /* 2: Predictor type 2 */ 118706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh "PUDDLE", /* 3: Puddle Jumber */ 119706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh NULL, NULL, NULL, NULL, NULL, NULL, 120706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh NULL, NULL, NULL, NULL, NULL, NULL, 121706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh "HWPPC", /* 16: Hewlett-Packard PPC */ 122706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh "STAC", /* 17: Stac Electronics LZS (rfc1974) */ 123706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh "MPPE", /* 18: Microsoft PPC (rfc2118) and */ 124706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh /* Microsoft PPE (draft-ietf-pppext-mppe) */ 125706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh "GAND", /* 19: Gandalf FZA (rfc1993) */ 126706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh "V42BIS", /* 20: ARG->DATA.42bis compression */ 127706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh "BSD", /* 21: BSD LZW Compress */ 128706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh NULL, 129706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh "LZS-DCP", /* 23: LZS-DCP Compression Protocol (rfc1967) */ 130706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh "MAGNALINK/DEFLATE",/* 24: Magnalink Variable Resource (rfc1975) */ 131706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh /* 24: Deflate (according to pppd-2.3.*) */ 132706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh "DCE", /* 25: Data Circuit-Terminating Equip (rfc1976) */ 133706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh "DEFLATE", /* 26: Deflate (rfc1979) */ 134706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh }; 135706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 136706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh if (proto < 0 || (unsigned)proto > sizeof cftypes / sizeof *cftypes || 137706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh cftypes[proto] == NULL) { 138706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh if (proto == -1) 139706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh return "none"; 140706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh return HexStr(proto, NULL, 0); 141706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh } 142706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 143706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh return cftypes[proto]; 144706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh} 145706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 146706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh/* We support these algorithms, and Req them in the given order */ 147706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yehstatic const struct ccp_algorithm * const algorithm[] = { 148706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh &DeflateAlgorithm, 149706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh &Pred1Algorithm, 150706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh &PppdDeflateAlgorithm 151706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#ifndef NODES 152706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh , &MPPEAlgorithm 153706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#endif 154706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh}; 155706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 156706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#define NALGORITHMS (sizeof algorithm/sizeof algorithm[0]) 157706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 158706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yehint 159706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yehccp_ReportStatus(struct cmdargs const *arg) 160706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh{ 161706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh struct ccp_opt **o; 162706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh struct link *l; 163706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh struct ccp *ccp; 164706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh int f; 165706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 166706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh l = command_ChooseLink(arg); 167706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh ccp = &l->ccp; 168706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 169706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh prompt_Printf(arg->prompt, "%s: %s [%s]\n", l->name, ccp->fsm.name, 170706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh State2Nam(ccp->fsm.state)); 171706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh if (ccp->fsm.state == ST_OPENED) { 172706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh prompt_Printf(arg->prompt, " My protocol = %s, His protocol = %s\n", 173706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh protoname(ccp->my_proto), protoname(ccp->his_proto)); 174706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh prompt_Printf(arg->prompt, " Output: %ld --> %ld, Input: %ld --> %ld\n", 175706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh ccp->uncompout, ccp->compout, 176706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh ccp->compin, ccp->uncompin); 177706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh } 178706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 179706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh if (ccp->in.algorithm != -1) 180706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh prompt_Printf(arg->prompt, "\n Input Options: %s\n", 181706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh (*algorithm[ccp->in.algorithm]->Disp)(&ccp->in.opt)); 182706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 183706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh if (ccp->out.algorithm != -1) { 184706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh o = &ccp->out.opt; 185706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh for (f = 0; f < ccp->out.algorithm; f++) 186706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh if (IsEnabled(ccp->cfg.neg[algorithm[f]->Neg])) 187706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh o = &(*o)->next; 188706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh prompt_Printf(arg->prompt, " Output Options: %s\n", 189706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh (*algorithm[ccp->out.algorithm]->Disp)(&(*o)->val)); 190706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh } 191706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 192706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh prompt_Printf(arg->prompt, "\n Defaults: "); 193706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh prompt_Printf(arg->prompt, "FSM retry = %us, max %u Config" 194706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh " REQ%s, %u Term REQ%s\n", ccp->cfg.fsm.timeout, 195706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh ccp->cfg.fsm.maxreq, ccp->cfg.fsm.maxreq == 1 ? "" : "s", 196706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh ccp->cfg.fsm.maxtrm, ccp->cfg.fsm.maxtrm == 1 ? "" : "s"); 197706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh prompt_Printf(arg->prompt, " deflate windows: "); 198706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh prompt_Printf(arg->prompt, "incoming = %d, ", ccp->cfg.deflate.in.winsize); 199706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh prompt_Printf(arg->prompt, "outgoing = %d\n", ccp->cfg.deflate.out.winsize); 200706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#ifndef NODES 201706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh prompt_Printf(arg->prompt, " MPPE: "); 202706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh if (ccp->cfg.mppe.keybits) 203706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh prompt_Printf(arg->prompt, "%d bits, ", ccp->cfg.mppe.keybits); 204706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh else 205706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh prompt_Printf(arg->prompt, "any bits, "); 206706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh switch (ccp->cfg.mppe.state) { 207706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh case MPPE_STATEFUL: 208706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh prompt_Printf(arg->prompt, "stateful"); 209706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh break; 210706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh case MPPE_STATELESS: 211706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh prompt_Printf(arg->prompt, "stateless"); 212706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh break; 213706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh case MPPE_ANYSTATE: 214706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh prompt_Printf(arg->prompt, "any state"); 215706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh break; 216706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh } 217706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh prompt_Printf(arg->prompt, "%s\n", 218706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh ccp->cfg.mppe.required ? ", required" : ""); 219706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#endif 220706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 221706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh prompt_Printf(arg->prompt, "\n DEFLATE: %s\n", 222706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh command_ShowNegval(ccp->cfg.neg[CCP_NEG_DEFLATE])); 223706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh prompt_Printf(arg->prompt, " PREDICTOR1: %s\n", 224706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh command_ShowNegval(ccp->cfg.neg[CCP_NEG_PRED1])); 225706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh prompt_Printf(arg->prompt, " DEFLATE24: %s\n", 226706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh command_ShowNegval(ccp->cfg.neg[CCP_NEG_DEFLATE24])); 227706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#ifndef NODES 228706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh prompt_Printf(arg->prompt, " MPPE: %s\n", 229706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh command_ShowNegval(ccp->cfg.neg[CCP_NEG_MPPE])); 230706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#endif 231706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh return 0; 232706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh} 233706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 234706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yehvoid 235706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yehccp_SetupCallbacks(struct ccp *ccp) 236706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh{ 237706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh ccp->fsm.fn = &ccp_Callbacks; 238706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh ccp->fsm.FsmTimer.name = ccp_TimerNames[0]; 239706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh ccp->fsm.OpenTimer.name = ccp_TimerNames[1]; 240706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh ccp->fsm.StoppedTimer.name = ccp_TimerNames[2]; 241706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh} 242706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 243706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yehvoid 244706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yehccp_Init(struct ccp *ccp, struct bundle *bundle, struct link *l, 245706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh const struct fsm_parent *parent) 246706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh{ 247706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh /* Initialise ourselves */ 248706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 249706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh fsm_Init(&ccp->fsm, "CCP", PROTO_CCP, 1, CCP_MAXCODE, LogCCP, 250706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh bundle, l, parent, &ccp_Callbacks, ccp_TimerNames); 251706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 252706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh ccp->cfg.deflate.in.winsize = 0; 253706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh ccp->cfg.deflate.out.winsize = 15; 254706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh ccp->cfg.fsm.timeout = DEF_FSMRETRY; 255706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh ccp->cfg.fsm.maxreq = DEF_FSMTRIES; 256706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh ccp->cfg.fsm.maxtrm = DEF_FSMTRIES; 257706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh ccp->cfg.neg[CCP_NEG_DEFLATE] = NEG_ENABLED|NEG_ACCEPTED; 258706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh ccp->cfg.neg[CCP_NEG_PRED1] = NEG_ENABLED|NEG_ACCEPTED; 259706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh ccp->cfg.neg[CCP_NEG_DEFLATE24] = 0; 260706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#ifndef NODES 261706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh ccp->cfg.mppe.keybits = 0; 262706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh ccp->cfg.mppe.state = MPPE_ANYSTATE; 263706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh ccp->cfg.mppe.required = 0; 264706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh ccp->cfg.neg[CCP_NEG_MPPE] = NEG_ENABLED|NEG_ACCEPTED; 265706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh#endif 266706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 267706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh ccp_Setup(ccp); 268706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh} 269706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 270706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yehvoid 271706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yehccp_Setup(struct ccp *ccp) 272706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh{ 273706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh /* Set ourselves up for a startup */ 274706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh ccp->fsm.open_mode = 0; 275706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh ccp->his_proto = ccp->my_proto = -1; 276706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh ccp->reset_sent = ccp->last_reset = -1; 277706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh ccp->in.algorithm = ccp->out.algorithm = -1; 278706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh ccp->in.state = ccp->out.state = NULL; 279706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh ccp->in.opt.hdr.id = -1; 280706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh ccp->out.opt = NULL; 281706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh ccp->his_reject = ccp->my_reject = 0; 282706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh ccp->uncompout = ccp->compout = 0; 283706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh ccp->uncompin = ccp->compin = 0; 284706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh} 285706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 286706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh/* 287706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * Is ccp *REQUIRED* ? 288706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * We ask each of the configured ccp protocols if they're required and 289706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * return TRUE if they are. 290706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * 291706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * It's not possible for the peer to reject a required ccp protocol 292706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * without our state machine bringing the supporting lcp layer down. 293706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * 294706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * If ccp is required but not open, the NCP layer should not push 295706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * any data into the link. 296706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh */ 297706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yehint 298706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yehccp_Required(struct ccp *ccp) 299706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh{ 300706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh unsigned f; 301706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 302706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh for (f = 0; f < NALGORITHMS; f++) 303706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh if (IsEnabled(ccp->cfg.neg[algorithm[f]->Neg]) && 304706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh (*algorithm[f]->Required)(&ccp->fsm)) 305706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh return 1; 306706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 307706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh return 0; 308706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh} 309706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 310706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh/* 311706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * Report whether it's possible to increase a packet's size after 312706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * compression (and by how much). 313706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh */ 314706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yehint 315706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yehccp_MTUOverhead(struct ccp *ccp) 316706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh{ 317706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh if (ccp->fsm.state == ST_OPENED && ccp->out.algorithm >= 0) 318706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh return algorithm[ccp->out.algorithm]->o.MTUOverhead; 319706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 320706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh return 0; 321706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh} 322706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 323706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yehstatic void 324706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi YehCcpInitRestartCounter(struct fsm *fp, int what) 325706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh{ 326706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh /* Set fsm timer load */ 327706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh struct ccp *ccp = fsm2ccp(fp); 328706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 329706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh fp->FsmTimer.load = ccp->cfg.fsm.timeout * SECTICKS; 330706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh switch (what) { 331706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh case FSM_REQ_TIMER: 332706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh fp->restart = ccp->cfg.fsm.maxreq; 333706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh break; 334706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh case FSM_TRM_TIMER: 335706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh fp->restart = ccp->cfg.fsm.maxtrm; 336706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh break; 337706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh default: 338706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh fp->restart = 1; 339706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh break; 340706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh } 341706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh} 342706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 343706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yehstatic void 344706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi YehCcpSendConfigReq(struct fsm *fp) 345706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh{ 346706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh /* Send config REQ please */ 347706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh struct ccp *ccp = fsm2ccp(fp); 348706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh struct ccp_opt **o; 349706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh u_char *cp, buff[100]; 350706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh unsigned f; 351706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh int alloc; 352706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 353706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh cp = buff; 354706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh o = &ccp->out.opt; 355706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh alloc = ccp->his_reject == 0 && ccp->out.opt == NULL; 356706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh ccp->my_proto = -1; 357706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh ccp->out.algorithm = -1; 358706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh for (f = 0; f < NALGORITHMS; f++) 359706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh if (IsEnabled(ccp->cfg.neg[algorithm[f]->Neg]) && 360706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh !REJECTED(ccp, algorithm[f]->id) && 361706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh (*algorithm[f]->Usable)(fp)) { 362706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 363706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh if (!alloc) 364706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh for (o = &ccp->out.opt; *o != NULL; o = &(*o)->next) 365706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh if ((*o)->val.hdr.id == algorithm[f]->id && (*o)->algorithm == (int)f) 366706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh break; 367706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 368706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh if (alloc || *o == NULL) { 369706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh if ((*o = (struct ccp_opt *)malloc(sizeof(struct ccp_opt))) == NULL) { 370706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh log_Printf(LogERROR, "%s: Not enough memory for CCP REQ !\n", 371706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh fp->link->name); 372706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh break; 373706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh } 374706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh (*o)->val.hdr.id = algorithm[f]->id; 375706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh (*o)->val.hdr.len = 2; 376706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh (*o)->next = NULL; 377706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh (*o)->algorithm = f; 378706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh (*algorithm[f]->o.OptInit)(fp->bundle, &(*o)->val, &ccp->cfg); 379706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh } 380706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 381706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh if (cp + (*o)->val.hdr.len > buff + sizeof buff) { 382706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh log_Printf(LogERROR, "%s: CCP REQ buffer overrun !\n", fp->link->name); 383706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh break; 384706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh } 385706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh memcpy(cp, &(*o)->val, (*o)->val.hdr.len); 386706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh cp += (*o)->val.hdr.len; 387706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 388706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh ccp->my_proto = (*o)->val.hdr.id; 389706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh ccp->out.algorithm = f; 390706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 391706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh if (alloc) 392706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh o = &(*o)->next; 393706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh } 394706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 395706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh fsm_Output(fp, CODE_CONFIGREQ, fp->reqid, buff, cp - buff, MB_CCPOUT); 396706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh} 397706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 398706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yehvoid 399706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yehccp_SendResetReq(struct fsm *fp) 400706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh{ 401706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh /* We can't read our input - ask peer to reset */ 402706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh struct ccp *ccp = fsm2ccp(fp); 403706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 404706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh ccp->reset_sent = fp->reqid; 405706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh ccp->last_reset = -1; 406706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh fsm_Output(fp, CODE_RESETREQ, fp->reqid, NULL, 0, MB_CCPOUT); 407706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh} 408706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 409706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yehstatic void 410706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi YehCcpSentTerminateReq(struct fsm *fp __unused) 411706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh{ 412706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh /* Term REQ just sent by FSM */ 413706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh} 414706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 415706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yehstatic void 416706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi YehCcpSendTerminateAck(struct fsm *fp, u_char id) 417706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh{ 418706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh /* Send Term ACK please */ 419706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh fsm_Output(fp, CODE_TERMACK, id, NULL, 0, MB_CCPOUT); 420706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh} 421706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 422706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yehstatic int 423706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi YehCcpRecvResetReq(struct fsm *fp) 424706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh{ 425706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh /* Got a reset REQ, reset outgoing dictionary */ 426706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh struct ccp *ccp = fsm2ccp(fp); 427706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh if (ccp->out.state == NULL) 428706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh return 1; 429706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh return (*algorithm[ccp->out.algorithm]->o.Reset)(ccp->out.state); 430706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh} 431706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 432706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yehstatic void 433706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi YehCcpLayerStart(struct fsm *fp) 434706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh{ 435706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh /* We're about to start up ! */ 436706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh struct ccp *ccp = fsm2ccp(fp); 437706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 438706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh log_Printf(LogCCP, "%s: LayerStart.\n", fp->link->name); 439706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh fp->more.reqs = fp->more.naks = fp->more.rejs = ccp->cfg.fsm.maxreq * 3; 440706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh} 441706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 442706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yehstatic void 443706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi YehCcpLayerDown(struct fsm *fp) 444706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh{ 445706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh /* About to come down */ 446706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh struct ccp *ccp = fsm2ccp(fp); 447706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh struct ccp_opt *next; 448706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 449706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh log_Printf(LogCCP, "%s: LayerDown.\n", fp->link->name); 450706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh if (ccp->in.state != NULL) { 451706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh (*algorithm[ccp->in.algorithm]->i.Term)(ccp->in.state); 452706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh ccp->in.state = NULL; 453706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh ccp->in.algorithm = -1; 454706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh } 455706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh if (ccp->out.state != NULL) { 456706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh (*algorithm[ccp->out.algorithm]->o.Term)(ccp->out.state); 457706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh ccp->out.state = NULL; 458706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh ccp->out.algorithm = -1; 459706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh } 460706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh ccp->his_reject = ccp->my_reject = 0; 461706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 462706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh while (ccp->out.opt) { 463706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh next = ccp->out.opt->next; 464706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh free(ccp->out.opt); 465706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh ccp->out.opt = next; 466706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh } 467706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh ccp_Setup(ccp); 468706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh} 469706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 470706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yehstatic void 471706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi YehCcpLayerFinish(struct fsm *fp) 472706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh{ 473706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh /* We're now down */ 474706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh struct ccp *ccp = fsm2ccp(fp); 475706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh struct ccp_opt *next; 476706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 477706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh log_Printf(LogCCP, "%s: LayerFinish.\n", fp->link->name); 478706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 479706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh /* 480706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * Nuke options that may be left over from sending a REQ but never 481706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * coming up. 482706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh */ 483706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh while (ccp->out.opt) { 484706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh next = ccp->out.opt->next; 485706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh free(ccp->out.opt); 486706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh ccp->out.opt = next; 487706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh } 488706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 489706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh if (ccp_Required(ccp)) { 490706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh if (fp->link->lcp.fsm.state == ST_OPENED) 491706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh log_Printf(LogLCP, "%s: Closing due to CCP completion\n", fp->link->name); 492706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh fsm_Close(&fp->link->lcp.fsm); 493706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh } 494706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh} 495706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 496706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh/* Called when CCP has reached the OPEN state */ 497706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yehstatic int 498706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi YehCcpLayerUp(struct fsm *fp) 499706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh{ 500706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh /* We're now up */ 501706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh struct ccp *ccp = fsm2ccp(fp); 502706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh struct ccp_opt **o; 503706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh unsigned f, fail; 504706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 505706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh for (f = fail = 0; f < NALGORITHMS; f++) 506706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh if (IsEnabled(ccp->cfg.neg[algorithm[f]->Neg]) && 507706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh (*algorithm[f]->Required)(&ccp->fsm) && 508706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh (ccp->in.algorithm != (int)f || ccp->out.algorithm != (int)f)) { 509706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh /* Blow it all away - we haven't negotiated a required algorithm */ 510706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh log_Printf(LogWARN, "%s: Failed to negotiate (required) %s\n", 511706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh fp->link->name, protoname(algorithm[f]->id)); 512706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh fail = 1; 513706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh } 514706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 515706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh if (fail) { 516706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh ccp->his_proto = ccp->my_proto = -1; 517706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh fsm_Close(fp); 518706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh fsm_Close(&fp->link->lcp.fsm); 519706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh return 0; 520706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh } 521706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 522706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh log_Printf(LogCCP, "%s: LayerUp.\n", fp->link->name); 523706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 524706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh if (ccp->in.state == NULL && ccp->in.algorithm >= 0 && 525706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh ccp->in.algorithm < (int)NALGORITHMS) { 526706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh ccp->in.state = (*algorithm[ccp->in.algorithm]->i.Init) 527706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh (fp->bundle, &ccp->in.opt); 528706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh if (ccp->in.state == NULL) { 529706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh log_Printf(LogERROR, "%s: %s (in) initialisation failure\n", 530706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh fp->link->name, protoname(ccp->his_proto)); 531706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh ccp->his_proto = ccp->my_proto = -1; 532706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh fsm_Close(fp); 533706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh return 0; 534706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh } 535706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh } 536706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 537706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh o = &ccp->out.opt; 538706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh if (ccp->out.algorithm > 0) 539706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh for (f = 0; f < (unsigned)ccp->out.algorithm; f++) 540706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh if (IsEnabled(ccp->cfg.neg[algorithm[f]->Neg])) 541706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh o = &(*o)->next; 542706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 543706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh if (ccp->out.state == NULL && ccp->out.algorithm >= 0 && 544706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh ccp->out.algorithm < (int)NALGORITHMS) { 545706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh ccp->out.state = (*algorithm[ccp->out.algorithm]->o.Init) 546706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh (fp->bundle, &(*o)->val); 547706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh if (ccp->out.state == NULL) { 548706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh log_Printf(LogERROR, "%s: %s (out) initialisation failure\n", 549706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh fp->link->name, protoname(ccp->my_proto)); 550706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh ccp->his_proto = ccp->my_proto = -1; 551706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh fsm_Close(fp); 552706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh return 0; 553706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh } 554706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh } 555706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 556706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh fp->more.reqs = fp->more.naks = fp->more.rejs = ccp->cfg.fsm.maxreq * 3; 557706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 558706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh log_Printf(LogCCP, "%s: Out = %s[%d], In = %s[%d]\n", 559706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh fp->link->name, protoname(ccp->my_proto), ccp->my_proto, 560706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh protoname(ccp->his_proto), ccp->his_proto); 561706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 562706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh return 1; 563706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh} 564706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 565706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yehstatic void 566706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi YehCcpDecodeConfig(struct fsm *fp, u_char *cp, u_char *end, int mode_type, 567706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh struct fsm_decode *dec) 568706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh{ 569706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh /* Deal with incoming data */ 570706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh struct ccp *ccp = fsm2ccp(fp); 571706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh int f; 572706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh const char *disp; 573706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh struct fsm_opt *opt; 574706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 575706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh if (mode_type == MODE_REQ) 576706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh ccp->in.algorithm = -1; /* In case we've received two REQs in a row */ 577706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 578706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh while (end >= cp + sizeof(opt->hdr)) { 579706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh if ((opt = fsm_readopt(&cp)) == NULL) 580706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh break; 581706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 582706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh for (f = NALGORITHMS-1; f > -1; f--) 583706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh if (algorithm[f]->id == opt->hdr.id) 584706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh break; 585706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 586706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh disp = f == -1 ? "" : (*algorithm[f]->Disp)(opt); 587706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh if (disp == NULL) 588706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh disp = ""; 589706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 590706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh log_Printf(LogCCP, " %s[%d] %s\n", protoname(opt->hdr.id), 591706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh opt->hdr.len, disp); 592706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 593706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh if (f == -1) { 594706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh /* Don't understand that :-( */ 595706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh if (mode_type == MODE_REQ) { 596706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh ccp->my_reject |= (1 << opt->hdr.id); 597706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh fsm_rej(dec, opt); 598706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh } 599706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh } else { 600706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh struct ccp_opt *o; 601706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 602706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh switch (mode_type) { 603706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh case MODE_REQ: 604706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh if (IsAccepted(ccp->cfg.neg[algorithm[f]->Neg]) && 605706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh (*algorithm[f]->Usable)(fp) && 606706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh ccp->in.algorithm == -1) { 607706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh memcpy(&ccp->in.opt, opt, opt->hdr.len); 608706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh switch ((*algorithm[f]->i.Set)(fp->bundle, &ccp->in.opt, &ccp->cfg)) { 609706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh case MODE_REJ: 610706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh fsm_rej(dec, &ccp->in.opt); 611706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh break; 612706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh case MODE_NAK: 613706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh fsm_nak(dec, &ccp->in.opt); 614706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh break; 615706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh case MODE_ACK: 616706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh fsm_ack(dec, &ccp->in.opt); 617706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh ccp->his_proto = opt->hdr.id; 618706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh ccp->in.algorithm = (int)f; /* This one'll do :-) */ 619706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh break; 620706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh } 621706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh } else { 622706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh fsm_rej(dec, opt); 623706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh } 624706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh break; 625706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh case MODE_NAK: 626706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh for (o = ccp->out.opt; o != NULL; o = o->next) 627706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh if (o->val.hdr.id == opt->hdr.id) 628706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh break; 629706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh if (o == NULL) 630706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh log_Printf(LogCCP, "%s: Warning: Ignoring peer NAK of unsent" 631706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh " option\n", fp->link->name); 632706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh else { 633706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh memcpy(&o->val, opt, opt->hdr.len); 634706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh if ((*algorithm[f]->o.Set)(fp->bundle, &o->val, &ccp->cfg) == 635706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh MODE_ACK) 636706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh ccp->my_proto = algorithm[f]->id; 637706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh else { 638706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh ccp->his_reject |= (1 << opt->hdr.id); 639706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh ccp->my_proto = -1; 640706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh if (algorithm[f]->Required(fp)) { 641706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh log_Printf(LogWARN, "%s: Cannot understand peers (required)" 642706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh " %s negotiation\n", fp->link->name, 643706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh protoname(algorithm[f]->id)); 644706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh fsm_Close(&fp->link->lcp.fsm); 645706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh } 646706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh } 647706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh } 648706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh break; 649706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh case MODE_REJ: 650706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh ccp->his_reject |= (1 << opt->hdr.id); 651706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh ccp->my_proto = -1; 652706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh if (algorithm[f]->Required(fp)) { 653706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh log_Printf(LogWARN, "%s: Peer rejected (required) %s negotiation\n", 654706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh fp->link->name, protoname(algorithm[f]->id)); 655706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh fsm_Close(&fp->link->lcp.fsm); 656706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh } 657706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh break; 658706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh } 659706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh } 660706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh } 661706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 662706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh if (mode_type != MODE_NOP) { 663706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh fsm_opt_normalise(dec); 664706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh if (dec->rejend != dec->rej || dec->nakend != dec->nak) { 665706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh if (ccp->in.state == NULL) { 666706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh ccp->his_proto = -1; 667706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh ccp->in.algorithm = -1; 668706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh } 669706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh } 670706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh } 671706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh} 672706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 673706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yehextern struct mbuf * 674706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yehccp_Input(struct bundle *bundle, struct link *l, struct mbuf *bp) 675706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh{ 676706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh /* Got PROTO_CCP from link */ 677706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh m_settype(bp, MB_CCPIN); 678706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh if (bundle_Phase(bundle) == PHASE_NETWORK) 679706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh fsm_Input(&l->ccp.fsm, bp); 680706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh else { 681706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh if (bundle_Phase(bundle) < PHASE_NETWORK) 682706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh log_Printf(LogCCP, "%s: Error: Unexpected CCP in phase %s (ignored)\n", 683706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh l->ccp.fsm.link->name, bundle_PhaseName(bundle)); 684706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh m_freem(bp); 685706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh } 686706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh return NULL; 687706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh} 688706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 689706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yehstatic void 690706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi YehCcpRecvResetAck(struct fsm *fp, u_char id) 691706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh{ 692706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh /* Got a reset ACK, reset incoming dictionary */ 693706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh struct ccp *ccp = fsm2ccp(fp); 694706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 695706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh if (ccp->reset_sent != -1) { 696706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh if (id != ccp->reset_sent) { 697706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh log_Printf(LogCCP, "%s: Incorrect ResetAck (id %d, not %d)" 698706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh " ignored\n", fp->link->name, id, ccp->reset_sent); 699706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh return; 700706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh } 701706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh /* Whaddaya know - a correct reset ack */ 702706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh } else if (id == ccp->last_reset) 703706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh log_Printf(LogCCP, "%s: Duplicate ResetAck (resetting again)\n", 704706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh fp->link->name); 705706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh else { 706706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh log_Printf(LogCCP, "%s: Unexpected ResetAck (id %d) ignored\n", 707706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh fp->link->name, id); 708706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh return; 709706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh } 710706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 711706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh ccp->last_reset = ccp->reset_sent; 712706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh ccp->reset_sent = -1; 713706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh if (ccp->in.state != NULL) 714706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh (*algorithm[ccp->in.algorithm]->i.Reset)(ccp->in.state); 715706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh} 716706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 717706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yehstatic struct mbuf * 718706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yehccp_LayerPush(struct bundle *b __unused, struct link *l, struct mbuf *bp, 719706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh int pri, u_short *proto) 720706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh{ 721706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh if (PROTO_COMPRESSIBLE(*proto)) { 722706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh if (l->ccp.fsm.state != ST_OPENED) { 723706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh if (ccp_Required(&l->ccp)) { 724706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh /* The NCP layer shouldn't have let this happen ! */ 725706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh log_Printf(LogERROR, "%s: Unexpected attempt to use an unopened and" 726706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh " required CCP layer\n", l->name); 727706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh m_freem(bp); 728706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh bp = NULL; 729706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh } 730706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh } else if (l->ccp.out.state != NULL) { 731706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh bp = (*algorithm[l->ccp.out.algorithm]->o.Write) 732706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh (l->ccp.out.state, &l->ccp, l, pri, proto, bp); 733706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh switch (*proto) { 734706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh case PROTO_ICOMPD: 735706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh m_settype(bp, MB_ICOMPDOUT); 736706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh break; 737706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh case PROTO_COMPD: 738706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh m_settype(bp, MB_COMPDOUT); 739706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh break; 740706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh } 741706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh } 742706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh } 743706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 744706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh return bp; 745706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh} 746706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 747706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yehstatic struct mbuf * 748706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yehccp_LayerPull(struct bundle *b __unused, struct link *l, struct mbuf *bp, 749706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh u_short *proto) 750706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh{ 751706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh /* 752706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * If proto isn't PROTO_[I]COMPD, we still want to pass it to the 753706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh * decompression routines so that the dictionary's updated 754706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh */ 755706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh if (l->ccp.fsm.state == ST_OPENED) { 756706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh if (*proto == PROTO_COMPD || *proto == PROTO_ICOMPD) { 757706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh /* Decompress incoming data */ 758706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh if (l->ccp.reset_sent != -1) 759706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh /* Send another REQ and put the packet in the bit bucket */ 760706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh fsm_Output(&l->ccp.fsm, CODE_RESETREQ, l->ccp.reset_sent, NULL, 0, 761706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh MB_CCPOUT); 762706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh else if (l->ccp.in.state != NULL) { 763706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh bp = (*algorithm[l->ccp.in.algorithm]->i.Read) 764706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh (l->ccp.in.state, &l->ccp, proto, bp); 765706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh switch (*proto) { 766706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh case PROTO_ICOMPD: 767706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh m_settype(bp, MB_ICOMPDIN); 768706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh break; 769706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh case PROTO_COMPD: 770706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh m_settype(bp, MB_COMPDIN); 771706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh break; 772706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh } 773706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh return bp; 774706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh } 775706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh m_freem(bp); 776706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh bp = NULL; 777706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh } else if (PROTO_COMPRESSIBLE(*proto) && l->ccp.in.state != NULL) { 778706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh /* Add incoming Network Layer traffic to our dictionary */ 779706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh (*algorithm[l->ccp.in.algorithm]->i.DictSetup) 780706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh (l->ccp.in.state, &l->ccp, *proto, bp); 781706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh } 782706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh } 783706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 784706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh return bp; 785706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh} 786706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 787706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yehu_short 788706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yehccp_Proto(struct ccp *ccp) 789706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh{ 790706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh return !link2physical(ccp->fsm.link) || !ccp->fsm.bundle->ncp.mp.active ? 791706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh PROTO_COMPD : PROTO_ICOMPD; 792706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh} 793706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 794706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yehint 795706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yehccp_SetOpenMode(struct ccp *ccp) 796706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh{ 797706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh int f; 798706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 799706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh for (f = 0; f < CCP_NEG_TOTAL; f++) 800706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh if (IsEnabled(ccp->cfg.neg[f])) { 801706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh ccp->fsm.open_mode = 0; 802706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh return 1; 803706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh } 804706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 805706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh ccp->fsm.open_mode = OPEN_PASSIVE; /* Go straight to ST_STOPPED ? */ 806706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 807706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh for (f = 0; f < CCP_NEG_TOTAL; f++) 808706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh if (IsAccepted(ccp->cfg.neg[f])) 809706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh return 1; 810706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 811706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh return 0; /* No CCP at all */ 812706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh} 813706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 814706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yehint 815706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yehccp_DefaultUsable(struct fsm *fp __unused) 816706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh{ 817706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh return 1; 818706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh} 819706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 820706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yehint 821706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yehccp_DefaultRequired(struct fsm *fp __unused) 822706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh{ 823706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh return 0; 824706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh} 825706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yeh 826706e567fc5ff6b79738a5f470e5aa7b2cae76459Chia-chi Yehstruct layer ccplayer = { LAYER_CCP, "ccp", ccp_LayerPush, ccp_LayerPull }; 827