Nino Der Kinderen / Mbed 2 deprecated InetTest

Embedded C project:18/12/2014

Dependencies:   DS1307 TextLCD mbed

NetServices/lwip/netif/ppp/lcp.c@0:8d87bc453349, 2014-12-18 (annotated)

Committer:
ninoderkinderen
Date:
Thu Dec 18 09:35:49 2014 +0000
Revision:
0:8d87bc453349
Programma embedded C

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ninoderkinderen 0:8d87bc453349 1 /*****************************************************************************
ninoderkinderen 0:8d87bc453349 2 * lcp.c - Network Link Control Protocol program file.
ninoderkinderen 0:8d87bc453349 3 *
ninoderkinderen 0:8d87bc453349 4 * Copyright (c) 2003 by Marc Boucher, Services Informatiques (MBSI) inc.
ninoderkinderen 0:8d87bc453349 5 * portions Copyright (c) 1997 by Global Election Systems Inc.
ninoderkinderen 0:8d87bc453349 6 *
ninoderkinderen 0:8d87bc453349 7 * The authors hereby grant permission to use, copy, modify, distribute,
ninoderkinderen 0:8d87bc453349 8 * and license this software and its documentation for any purpose, provided
ninoderkinderen 0:8d87bc453349 9 * that existing copyright notices are retained in all copies and that this
ninoderkinderen 0:8d87bc453349 10 * notice and the following disclaimer are included verbatim in any
ninoderkinderen 0:8d87bc453349 11 * distributions. No written agreement, license, or royalty fee is required
ninoderkinderen 0:8d87bc453349 12 * for any of the authorized uses.
ninoderkinderen 0:8d87bc453349 13 *
ninoderkinderen 0:8d87bc453349 14 * THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS *AS IS* AND ANY EXPRESS OR
ninoderkinderen 0:8d87bc453349 15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
ninoderkinderen 0:8d87bc453349 16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
ninoderkinderen 0:8d87bc453349 17 * IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
ninoderkinderen 0:8d87bc453349 18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
ninoderkinderen 0:8d87bc453349 19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
ninoderkinderen 0:8d87bc453349 20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
ninoderkinderen 0:8d87bc453349 21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
ninoderkinderen 0:8d87bc453349 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
ninoderkinderen 0:8d87bc453349 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
ninoderkinderen 0:8d87bc453349 24 *
ninoderkinderen 0:8d87bc453349 25 ******************************************************************************
ninoderkinderen 0:8d87bc453349 26 * REVISION HISTORY
ninoderkinderen 0:8d87bc453349 27 *
ninoderkinderen 0:8d87bc453349 28 * 03-01-01 Marc Boucher <marc@mbsi.ca>
ninoderkinderen 0:8d87bc453349 29 * Ported to lwIP.
ninoderkinderen 0:8d87bc453349 30 * 97-12-01 Guy Lancaster <lancasterg@acm.org>, Global Election Systems Inc.
ninoderkinderen 0:8d87bc453349 31 * Original.
ninoderkinderen 0:8d87bc453349 32 *****************************************************************************/
ninoderkinderen 0:8d87bc453349 33
ninoderkinderen 0:8d87bc453349 34 /*
ninoderkinderen 0:8d87bc453349 35 * lcp.c - PPP Link Control Protocol.
ninoderkinderen 0:8d87bc453349 36 *
ninoderkinderen 0:8d87bc453349 37 * Copyright (c) 1989 Carnegie Mellon University.
ninoderkinderen 0:8d87bc453349 38 * All rights reserved.
ninoderkinderen 0:8d87bc453349 39 *
ninoderkinderen 0:8d87bc453349 40 * Redistribution and use in source and binary forms are permitted
ninoderkinderen 0:8d87bc453349 41 * provided that the above copyright notice and this paragraph are
ninoderkinderen 0:8d87bc453349 42 * duplicated in all such forms and that any documentation,
ninoderkinderen 0:8d87bc453349 43 * advertising materials, and other materials related to such
ninoderkinderen 0:8d87bc453349 44 * distribution and use acknowledge that the software was developed
ninoderkinderen 0:8d87bc453349 45 * by Carnegie Mellon University. The name of the
ninoderkinderen 0:8d87bc453349 46 * University may not be used to endorse or promote products derived
ninoderkinderen 0:8d87bc453349 47 * from this software without specific prior written permission.
ninoderkinderen 0:8d87bc453349 48 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
ninoderkinderen 0:8d87bc453349 49 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
ninoderkinderen 0:8d87bc453349 50 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
ninoderkinderen 0:8d87bc453349 51 */
ninoderkinderen 0:8d87bc453349 52
ninoderkinderen 0:8d87bc453349 53
ninoderkinderen 0:8d87bc453349 54 #include "lwip/opt.h"
ninoderkinderen 0:8d87bc453349 55
ninoderkinderen 0:8d87bc453349 56 #if PPP_SUPPORT /* don't build if not configured for use in lwipopts.h */
ninoderkinderen 0:8d87bc453349 57
ninoderkinderen 0:8d87bc453349 58 #include "ppp.h"
ninoderkinderen 0:8d87bc453349 59 #include "pppdebug.h"
ninoderkinderen 0:8d87bc453349 60
ninoderkinderen 0:8d87bc453349 61 #include "fsm.h"
ninoderkinderen 0:8d87bc453349 62 #include "chap.h"
ninoderkinderen 0:8d87bc453349 63 #include "magic.h"
ninoderkinderen 0:8d87bc453349 64 #include "auth.h"
ninoderkinderen 0:8d87bc453349 65 #include "lcp.h"
ninoderkinderen 0:8d87bc453349 66
ninoderkinderen 0:8d87bc453349 67 #include <string.h>
ninoderkinderen 0:8d87bc453349 68
ninoderkinderen 0:8d87bc453349 69 #if PPPOE_SUPPORT
ninoderkinderen 0:8d87bc453349 70 #include "netif/ppp_oe.h"
ninoderkinderen 0:8d87bc453349 71 #else
ninoderkinderen 0:8d87bc453349 72 #define PPPOE_MAXMTU PPP_MAXMRU
ninoderkinderen 0:8d87bc453349 73 #endif
ninoderkinderen 0:8d87bc453349 74
ninoderkinderen 0:8d87bc453349 75 #if 0 /* UNUSED */
ninoderkinderen 0:8d87bc453349 76 /*
ninoderkinderen 0:8d87bc453349 77 * LCP-related command-line options.
ninoderkinderen 0:8d87bc453349 78 */
ninoderkinderen 0:8d87bc453349 79 int lcp_echo_interval = 0; /* Interval between LCP echo-requests */
ninoderkinderen 0:8d87bc453349 80 int lcp_echo_fails = 0; /* Tolerance to unanswered echo-requests */
ninoderkinderen 0:8d87bc453349 81 bool lax_recv = 0; /* accept control chars in asyncmap */
ninoderkinderen 0:8d87bc453349 82
ninoderkinderen 0:8d87bc453349 83 static int setescape (char **);
ninoderkinderen 0:8d87bc453349 84
ninoderkinderen 0:8d87bc453349 85 static option_t lcp_option_list[] = {
ninoderkinderen 0:8d87bc453349 86 /* LCP options */
ninoderkinderen 0:8d87bc453349 87 /* list stripped for simplicity */
ninoderkinderen 0:8d87bc453349 88 {NULL}
ninoderkinderen 0:8d87bc453349 89 };
ninoderkinderen 0:8d87bc453349 90 #endif /* UNUSED */
ninoderkinderen 0:8d87bc453349 91
ninoderkinderen 0:8d87bc453349 92 /* options */
ninoderkinderen 0:8d87bc453349 93 LinkPhase lcp_phase[NUM_PPP]; /* Phase of link session (RFC 1661) */
ninoderkinderen 0:8d87bc453349 94 static u_int lcp_echo_interval = LCP_ECHOINTERVAL; /* Interval between LCP echo-requests */
ninoderkinderen 0:8d87bc453349 95 static u_int lcp_echo_fails = LCP_MAXECHOFAILS; /* Tolerance to unanswered echo-requests */
ninoderkinderen 0:8d87bc453349 96
ninoderkinderen 0:8d87bc453349 97 /* global vars */
ninoderkinderen 0:8d87bc453349 98 static fsm lcp_fsm[NUM_PPP]; /* LCP fsm structure (global)*/
ninoderkinderen 0:8d87bc453349 99 lcp_options lcp_wantoptions[NUM_PPP]; /* Options that we want to request */
ninoderkinderen 0:8d87bc453349 100 lcp_options lcp_gotoptions[NUM_PPP]; /* Options that peer ack'd */
ninoderkinderen 0:8d87bc453349 101 lcp_options lcp_allowoptions[NUM_PPP]; /* Options we allow peer to request */
ninoderkinderen 0:8d87bc453349 102 lcp_options lcp_hisoptions[NUM_PPP]; /* Options that we ack'd */
ninoderkinderen 0:8d87bc453349 103 ext_accm xmit_accm[NUM_PPP]; /* extended transmit ACCM */
ninoderkinderen 0:8d87bc453349 104
ninoderkinderen 0:8d87bc453349 105 static u32_t lcp_echos_pending = 0; /* Number of outstanding echo msgs */
ninoderkinderen 0:8d87bc453349 106 static u32_t lcp_echo_number = 0; /* ID number of next echo frame */
ninoderkinderen 0:8d87bc453349 107 static u32_t lcp_echo_timer_running = 0; /* TRUE if a timer is running */
ninoderkinderen 0:8d87bc453349 108
ninoderkinderen 0:8d87bc453349 109 /* @todo: do we really need such a large buffer? The typical 1500 bytes seem too much. */
ninoderkinderen 0:8d87bc453349 110 static u_char nak_buffer[PPP_MRU]; /* where we construct a nak packet */
ninoderkinderen 0:8d87bc453349 111
ninoderkinderen 0:8d87bc453349 112 /*
ninoderkinderen 0:8d87bc453349 113 * Callbacks for fsm code. (CI = Configuration Information)
ninoderkinderen 0:8d87bc453349 114 */
ninoderkinderen 0:8d87bc453349 115 static void lcp_resetci (fsm*); /* Reset our CI */
ninoderkinderen 0:8d87bc453349 116 static int lcp_cilen (fsm*); /* Return length of our CI */
ninoderkinderen 0:8d87bc453349 117 static void lcp_addci (fsm*, u_char*, int*); /* Add our CI to pkt */
ninoderkinderen 0:8d87bc453349 118 static int lcp_ackci (fsm*, u_char*, int); /* Peer ack'd our CI */
ninoderkinderen 0:8d87bc453349 119 static int lcp_nakci (fsm*, u_char*, int); /* Peer nak'd our CI */
ninoderkinderen 0:8d87bc453349 120 static int lcp_rejci (fsm*, u_char*, int); /* Peer rej'd our CI */
ninoderkinderen 0:8d87bc453349 121 static int lcp_reqci (fsm*, u_char*, int*, int); /* Rcv peer CI */
ninoderkinderen 0:8d87bc453349 122 static void lcp_up (fsm*); /* We're UP */
ninoderkinderen 0:8d87bc453349 123 static void lcp_down (fsm*); /* We're DOWN */
ninoderkinderen 0:8d87bc453349 124 static void lcp_starting (fsm*); /* We need lower layer up */
ninoderkinderen 0:8d87bc453349 125 static void lcp_finished (fsm*); /* We need lower layer down */
ninoderkinderen 0:8d87bc453349 126 static int lcp_extcode (fsm*, int, u_char, u_char*, int);
ninoderkinderen 0:8d87bc453349 127 static void lcp_rprotrej (fsm*, u_char*, int);
ninoderkinderen 0:8d87bc453349 128
ninoderkinderen 0:8d87bc453349 129 /*
ninoderkinderen 0:8d87bc453349 130 * routines to send LCP echos to peer
ninoderkinderen 0:8d87bc453349 131 */
ninoderkinderen 0:8d87bc453349 132
ninoderkinderen 0:8d87bc453349 133 static void lcp_echo_lowerup (int);
ninoderkinderen 0:8d87bc453349 134 static void lcp_echo_lowerdown (int);
ninoderkinderen 0:8d87bc453349 135 static void LcpEchoTimeout (void*);
ninoderkinderen 0:8d87bc453349 136 static void lcp_received_echo_reply (fsm*, int, u_char*, int);
ninoderkinderen 0:8d87bc453349 137 static void LcpSendEchoRequest (fsm*);
ninoderkinderen 0:8d87bc453349 138 static void LcpLinkFailure (fsm*);
ninoderkinderen 0:8d87bc453349 139 static void LcpEchoCheck (fsm*);
ninoderkinderen 0:8d87bc453349 140
ninoderkinderen 0:8d87bc453349 141 static fsm_callbacks lcp_callbacks = { /* LCP callback routines */
ninoderkinderen 0:8d87bc453349 142 lcp_resetci, /* Reset our Configuration Information */
ninoderkinderen 0:8d87bc453349 143 lcp_cilen, /* Length of our Configuration Information */
ninoderkinderen 0:8d87bc453349 144 lcp_addci, /* Add our Configuration Information */
ninoderkinderen 0:8d87bc453349 145 lcp_ackci, /* ACK our Configuration Information */
ninoderkinderen 0:8d87bc453349 146 lcp_nakci, /* NAK our Configuration Information */
ninoderkinderen 0:8d87bc453349 147 lcp_rejci, /* Reject our Configuration Information */
ninoderkinderen 0:8d87bc453349 148 lcp_reqci, /* Request peer's Configuration Information */
ninoderkinderen 0:8d87bc453349 149 lcp_up, /* Called when fsm reaches LS_OPENED state */
ninoderkinderen 0:8d87bc453349 150 lcp_down, /* Called when fsm leaves LS_OPENED state */
ninoderkinderen 0:8d87bc453349 151 lcp_starting, /* Called when we want the lower layer up */
ninoderkinderen 0:8d87bc453349 152 lcp_finished, /* Called when we want the lower layer down */
ninoderkinderen 0:8d87bc453349 153 NULL, /* Called when Protocol-Reject received */
ninoderkinderen 0:8d87bc453349 154 NULL, /* Retransmission is necessary */
ninoderkinderen 0:8d87bc453349 155 lcp_extcode, /* Called to handle LCP-specific codes */
ninoderkinderen 0:8d87bc453349 156 "LCP" /* String name of protocol */
ninoderkinderen 0:8d87bc453349 157 };
ninoderkinderen 0:8d87bc453349 158
ninoderkinderen 0:8d87bc453349 159 /*
ninoderkinderen 0:8d87bc453349 160 * Protocol entry points.
ninoderkinderen 0:8d87bc453349 161 * Some of these are called directly.
ninoderkinderen 0:8d87bc453349 162 */
ninoderkinderen 0:8d87bc453349 163
ninoderkinderen 0:8d87bc453349 164 static void lcp_input (int, u_char *, int);
ninoderkinderen 0:8d87bc453349 165 static void lcp_protrej (int);
ninoderkinderen 0:8d87bc453349 166
ninoderkinderen 0:8d87bc453349 167 struct protent lcp_protent = {
ninoderkinderen 0:8d87bc453349 168 PPP_LCP,
ninoderkinderen 0:8d87bc453349 169 lcp_init,
ninoderkinderen 0:8d87bc453349 170 lcp_input,
ninoderkinderen 0:8d87bc453349 171 lcp_protrej,
ninoderkinderen 0:8d87bc453349 172 lcp_lowerup,
ninoderkinderen 0:8d87bc453349 173 lcp_lowerdown,
ninoderkinderen 0:8d87bc453349 174 lcp_open,
ninoderkinderen 0:8d87bc453349 175 lcp_close,
ninoderkinderen 0:8d87bc453349 176 #if PPP_ADDITIONAL_CALLBACKS
ninoderkinderen 0:8d87bc453349 177 lcp_printpkt,
ninoderkinderen 0:8d87bc453349 178 NULL,
ninoderkinderen 0:8d87bc453349 179 #endif /* PPP_ADDITIONAL_CALLBACKS */
ninoderkinderen 0:8d87bc453349 180 1,
ninoderkinderen 0:8d87bc453349 181 "LCP",
ninoderkinderen 0:8d87bc453349 182 #if PPP_ADDITIONAL_CALLBACKS
ninoderkinderen 0:8d87bc453349 183 NULL,
ninoderkinderen 0:8d87bc453349 184 NULL,
ninoderkinderen 0:8d87bc453349 185 NULL
ninoderkinderen 0:8d87bc453349 186 #endif /* PPP_ADDITIONAL_CALLBACKS */
ninoderkinderen 0:8d87bc453349 187 };
ninoderkinderen 0:8d87bc453349 188
ninoderkinderen 0:8d87bc453349 189 int lcp_loopbackfail = DEFLOOPBACKFAIL;
ninoderkinderen 0:8d87bc453349 190
ninoderkinderen 0:8d87bc453349 191 /*
ninoderkinderen 0:8d87bc453349 192 * Length of each type of configuration option (in octets)
ninoderkinderen 0:8d87bc453349 193 */
ninoderkinderen 0:8d87bc453349 194 #define CILEN_VOID 2
ninoderkinderen 0:8d87bc453349 195 #define CILEN_CHAR 3
ninoderkinderen 0:8d87bc453349 196 #define CILEN_SHORT 4 /* CILEN_VOID + sizeof(short) */
ninoderkinderen 0:8d87bc453349 197 #define CILEN_CHAP 5 /* CILEN_VOID + sizeof(short) + 1 */
ninoderkinderen 0:8d87bc453349 198 #define CILEN_LONG 6 /* CILEN_VOID + sizeof(long) */
ninoderkinderen 0:8d87bc453349 199 #define CILEN_LQR 8 /* CILEN_VOID + sizeof(short) + sizeof(long) */
ninoderkinderen 0:8d87bc453349 200 #define CILEN_CBCP 3
ninoderkinderen 0:8d87bc453349 201
ninoderkinderen 0:8d87bc453349 202 #define CODENAME(x) ((x) == CONFACK ? "ACK" : (x) == CONFNAK ? "NAK" : "REJ")
ninoderkinderen 0:8d87bc453349 203
ninoderkinderen 0:8d87bc453349 204 #if 0 /* UNUSED */
ninoderkinderen 0:8d87bc453349 205 /*
ninoderkinderen 0:8d87bc453349 206 * setescape - add chars to the set we escape on transmission.
ninoderkinderen 0:8d87bc453349 207 */
ninoderkinderen 0:8d87bc453349 208 static int
ninoderkinderen 0:8d87bc453349 209 setescape(argv)
ninoderkinderen 0:8d87bc453349 210 char **argv;
ninoderkinderen 0:8d87bc453349 211 {
ninoderkinderen 0:8d87bc453349 212 int n, ret;
ninoderkinderen 0:8d87bc453349 213 char *p, *endp;
ninoderkinderen 0:8d87bc453349 214
ninoderkinderen 0:8d87bc453349 215 p = *argv;
ninoderkinderen 0:8d87bc453349 216 ret = 1;
ninoderkinderen 0:8d87bc453349 217 while (*p) {
ninoderkinderen 0:8d87bc453349 218 n = strtol(p, &endp, 16);
ninoderkinderen 0:8d87bc453349 219 if (p == endp) {
ninoderkinderen 0:8d87bc453349 220 option_error("escape parameter contains invalid hex number '%s'", p);
ninoderkinderen 0:8d87bc453349 221 return 0;
ninoderkinderen 0:8d87bc453349 222 }
ninoderkinderen 0:8d87bc453349 223 p = endp;
ninoderkinderen 0:8d87bc453349 224 if (n < 0 || n == 0x5E || n > 0xFF) {
ninoderkinderen 0:8d87bc453349 225 option_error("can't escape character 0x%x", n);
ninoderkinderen 0:8d87bc453349 226 ret = 0;
ninoderkinderen 0:8d87bc453349 227 } else
ninoderkinderen 0:8d87bc453349 228 xmit_accm[0][n >> 5] |= 1 << (n & 0x1F);
ninoderkinderen 0:8d87bc453349 229 while (*p == ',' || *p == ' ')
ninoderkinderen 0:8d87bc453349 230 ++p;
ninoderkinderen 0:8d87bc453349 231 }
ninoderkinderen 0:8d87bc453349 232 return ret;
ninoderkinderen 0:8d87bc453349 233 }
ninoderkinderen 0:8d87bc453349 234 #endif /* UNUSED */
ninoderkinderen 0:8d87bc453349 235
ninoderkinderen 0:8d87bc453349 236 /*
ninoderkinderen 0:8d87bc453349 237 * lcp_init - Initialize LCP.
ninoderkinderen 0:8d87bc453349 238 */
ninoderkinderen 0:8d87bc453349 239 void
ninoderkinderen 0:8d87bc453349 240 lcp_init(int unit)
ninoderkinderen 0:8d87bc453349 241 {
ninoderkinderen 0:8d87bc453349 242 fsm *f = &lcp_fsm[unit];
ninoderkinderen 0:8d87bc453349 243 lcp_options *wo = &lcp_wantoptions[unit];
ninoderkinderen 0:8d87bc453349 244 lcp_options *ao = &lcp_allowoptions[unit];
ninoderkinderen 0:8d87bc453349 245
ninoderkinderen 0:8d87bc453349 246 f->unit = unit;
ninoderkinderen 0:8d87bc453349 247 f->protocol = PPP_LCP;
ninoderkinderen 0:8d87bc453349 248 f->callbacks = &lcp_callbacks;
ninoderkinderen 0:8d87bc453349 249
ninoderkinderen 0:8d87bc453349 250 fsm_init(f);
ninoderkinderen 0:8d87bc453349 251
ninoderkinderen 0:8d87bc453349 252 wo->passive = 0;
ninoderkinderen 0:8d87bc453349 253 wo->silent = 0;
ninoderkinderen 0:8d87bc453349 254 wo->restart = 0; /* Set to 1 in kernels or multi-line implementations */
ninoderkinderen 0:8d87bc453349 255 wo->neg_mru = 1;
ninoderkinderen 0:8d87bc453349 256 wo->mru = PPP_DEFMRU;
ninoderkinderen 0:8d87bc453349 257 wo->neg_asyncmap = 1;
ninoderkinderen 0:8d87bc453349 258 wo->asyncmap = 0x00000000l; /* Assume don't need to escape any ctl chars. */
ninoderkinderen 0:8d87bc453349 259 wo->neg_chap = 0; /* Set to 1 on server */
ninoderkinderen 0:8d87bc453349 260 wo->neg_upap = 0; /* Set to 1 on server */
ninoderkinderen 0:8d87bc453349 261 wo->chap_mdtype = CHAP_DIGEST_MD5;
ninoderkinderen 0:8d87bc453349 262 wo->neg_magicnumber = 1;
ninoderkinderen 0:8d87bc453349 263 wo->neg_pcompression = 1;
ninoderkinderen 0:8d87bc453349 264 wo->neg_accompression = 1;
ninoderkinderen 0:8d87bc453349 265 wo->neg_lqr = 0; /* no LQR implementation yet */
ninoderkinderen 0:8d87bc453349 266 wo->neg_cbcp = 0;
ninoderkinderen 0:8d87bc453349 267
ninoderkinderen 0:8d87bc453349 268 ao->neg_mru = 1;
ninoderkinderen 0:8d87bc453349 269 ao->mru = PPP_MAXMRU;
ninoderkinderen 0:8d87bc453349 270 ao->neg_asyncmap = 1;
ninoderkinderen 0:8d87bc453349 271 ao->asyncmap = 0x00000000l; /* Assume don't need to escape any ctl chars. */
ninoderkinderen 0:8d87bc453349 272 ao->neg_chap = (CHAP_SUPPORT != 0);
ninoderkinderen 0:8d87bc453349 273 ao->chap_mdtype = CHAP_DIGEST_MD5;
ninoderkinderen 0:8d87bc453349 274 ao->neg_upap = (PAP_SUPPORT != 0);
ninoderkinderen 0:8d87bc453349 275 ao->neg_magicnumber = 1;
ninoderkinderen 0:8d87bc453349 276 ao->neg_pcompression = 1;
ninoderkinderen 0:8d87bc453349 277 ao->neg_accompression = 1;
ninoderkinderen 0:8d87bc453349 278 ao->neg_lqr = 0; /* no LQR implementation yet */
ninoderkinderen 0:8d87bc453349 279 ao->neg_cbcp = (CBCP_SUPPORT != 0);
ninoderkinderen 0:8d87bc453349 280
ninoderkinderen 0:8d87bc453349 281 /*
ninoderkinderen 0:8d87bc453349 282 * Set transmit escape for the flag and escape characters plus anything
ninoderkinderen 0:8d87bc453349 283 * set for the allowable options.
ninoderkinderen 0:8d87bc453349 284 */
ninoderkinderen 0:8d87bc453349 285 memset(xmit_accm[unit], 0, sizeof(xmit_accm[0]));
ninoderkinderen 0:8d87bc453349 286 xmit_accm[unit][15] = 0x60;
ninoderkinderen 0:8d87bc453349 287 xmit_accm[unit][0] = (u_char)((ao->asyncmap & 0xFF));
ninoderkinderen 0:8d87bc453349 288 xmit_accm[unit][1] = (u_char)((ao->asyncmap >> 8) & 0xFF);
ninoderkinderen 0:8d87bc453349 289 xmit_accm[unit][2] = (u_char)((ao->asyncmap >> 16) & 0xFF);
ninoderkinderen 0:8d87bc453349 290 xmit_accm[unit][3] = (u_char)((ao->asyncmap >> 24) & 0xFF);
ninoderkinderen 0:8d87bc453349 291 LCPDEBUG(LOG_INFO, ("lcp_init: xmit_accm=%X %X %X %X\n",
ninoderkinderen 0:8d87bc453349 292 xmit_accm[unit][0],
ninoderkinderen 0:8d87bc453349 293 xmit_accm[unit][1],
ninoderkinderen 0:8d87bc453349 294 xmit_accm[unit][2],
ninoderkinderen 0:8d87bc453349 295 xmit_accm[unit][3]));
ninoderkinderen 0:8d87bc453349 296
ninoderkinderen 0:8d87bc453349 297 lcp_phase[unit] = PHASE_INITIALIZE;
ninoderkinderen 0:8d87bc453349 298 }
ninoderkinderen 0:8d87bc453349 299
ninoderkinderen 0:8d87bc453349 300
ninoderkinderen 0:8d87bc453349 301 /*
ninoderkinderen 0:8d87bc453349 302 * lcp_open - LCP is allowed to come up.
ninoderkinderen 0:8d87bc453349 303 */
ninoderkinderen 0:8d87bc453349 304 void
ninoderkinderen 0:8d87bc453349 305 lcp_open(int unit)
ninoderkinderen 0:8d87bc453349 306 {
ninoderkinderen 0:8d87bc453349 307 fsm *f = &lcp_fsm[unit];
ninoderkinderen 0:8d87bc453349 308 lcp_options *wo = &lcp_wantoptions[unit];
ninoderkinderen 0:8d87bc453349 309
ninoderkinderen 0:8d87bc453349 310 f->flags = 0;
ninoderkinderen 0:8d87bc453349 311 if (wo->passive) {
ninoderkinderen 0:8d87bc453349 312 f->flags |= OPT_PASSIVE;
ninoderkinderen 0:8d87bc453349 313 }
ninoderkinderen 0:8d87bc453349 314 if (wo->silent) {
ninoderkinderen 0:8d87bc453349 315 f->flags |= OPT_SILENT;
ninoderkinderen 0:8d87bc453349 316 }
ninoderkinderen 0:8d87bc453349 317 fsm_open(f);
ninoderkinderen 0:8d87bc453349 318
ninoderkinderen 0:8d87bc453349 319 lcp_phase[unit] = PHASE_ESTABLISH;
ninoderkinderen 0:8d87bc453349 320 }
ninoderkinderen 0:8d87bc453349 321
ninoderkinderen 0:8d87bc453349 322
ninoderkinderen 0:8d87bc453349 323 /*
ninoderkinderen 0:8d87bc453349 324 * lcp_close - Take LCP down.
ninoderkinderen 0:8d87bc453349 325 */
ninoderkinderen 0:8d87bc453349 326 void
ninoderkinderen 0:8d87bc453349 327 lcp_close(int unit, char *reason)
ninoderkinderen 0:8d87bc453349 328 {
ninoderkinderen 0:8d87bc453349 329 fsm *f = &lcp_fsm[unit];
ninoderkinderen 0:8d87bc453349 330
ninoderkinderen 0:8d87bc453349 331 if (lcp_phase[unit] != PHASE_DEAD) {
ninoderkinderen 0:8d87bc453349 332 lcp_phase[unit] = PHASE_TERMINATE;
ninoderkinderen 0:8d87bc453349 333 }
ninoderkinderen 0:8d87bc453349 334 if (f->state == LS_STOPPED && f->flags & (OPT_PASSIVE|OPT_SILENT)) {
ninoderkinderen 0:8d87bc453349 335 /*
ninoderkinderen 0:8d87bc453349 336 * This action is not strictly according to the FSM in RFC1548,
ninoderkinderen 0:8d87bc453349 337 * but it does mean that the program terminates if you do an
ninoderkinderen 0:8d87bc453349 338 * lcp_close() in passive/silent mode when a connection hasn't
ninoderkinderen 0:8d87bc453349 339 * been established.
ninoderkinderen 0:8d87bc453349 340 */
ninoderkinderen 0:8d87bc453349 341 f->state = LS_CLOSED;
ninoderkinderen 0:8d87bc453349 342 lcp_finished(f);
ninoderkinderen 0:8d87bc453349 343 } else {
ninoderkinderen 0:8d87bc453349 344 fsm_close(f, reason);
ninoderkinderen 0:8d87bc453349 345 }
ninoderkinderen 0:8d87bc453349 346 }
ninoderkinderen 0:8d87bc453349 347
ninoderkinderen 0:8d87bc453349 348
ninoderkinderen 0:8d87bc453349 349 /*
ninoderkinderen 0:8d87bc453349 350 * lcp_lowerup - The lower layer is up.
ninoderkinderen 0:8d87bc453349 351 */
ninoderkinderen 0:8d87bc453349 352 void
ninoderkinderen 0:8d87bc453349 353 lcp_lowerup(int unit)
ninoderkinderen 0:8d87bc453349 354 {
ninoderkinderen 0:8d87bc453349 355 lcp_options *wo = &lcp_wantoptions[unit];
ninoderkinderen 0:8d87bc453349 356
ninoderkinderen 0:8d87bc453349 357 /*
ninoderkinderen 0:8d87bc453349 358 * Don't use A/C or protocol compression on transmission,
ninoderkinderen 0:8d87bc453349 359 * but accept A/C and protocol compressed packets
ninoderkinderen 0:8d87bc453349 360 * if we are going to ask for A/C and protocol compression.
ninoderkinderen 0:8d87bc453349 361 */
ninoderkinderen 0:8d87bc453349 362 ppp_set_xaccm(unit, &xmit_accm[unit]);
ninoderkinderen 0:8d87bc453349 363 ppp_send_config(unit, PPP_MRU, 0xffffffffl, 0, 0);
ninoderkinderen 0:8d87bc453349 364 ppp_recv_config(unit, PPP_MRU, 0x00000000l,
ninoderkinderen 0:8d87bc453349 365 wo->neg_pcompression, wo->neg_accompression);
ninoderkinderen 0:8d87bc453349 366 peer_mru[unit] = PPP_MRU;
ninoderkinderen 0:8d87bc453349 367 lcp_allowoptions[unit].asyncmap = (u_long)xmit_accm[unit][0]
ninoderkinderen 0:8d87bc453349 368 | ((u_long)xmit_accm[unit][1] << 8)
ninoderkinderen 0:8d87bc453349 369 | ((u_long)xmit_accm[unit][2] << 16)
ninoderkinderen 0:8d87bc453349 370 | ((u_long)xmit_accm[unit][3] << 24);
ninoderkinderen 0:8d87bc453349 371 LCPDEBUG(LOG_INFO, ("lcp_lowerup: asyncmap=%X %X %X %X\n",
ninoderkinderen 0:8d87bc453349 372 xmit_accm[unit][3],
ninoderkinderen 0:8d87bc453349 373 xmit_accm[unit][2],
ninoderkinderen 0:8d87bc453349 374 xmit_accm[unit][1],
ninoderkinderen 0:8d87bc453349 375 xmit_accm[unit][0]));
ninoderkinderen 0:8d87bc453349 376
ninoderkinderen 0:8d87bc453349 377 fsm_lowerup(&lcp_fsm[unit]);
ninoderkinderen 0:8d87bc453349 378 }
ninoderkinderen 0:8d87bc453349 379
ninoderkinderen 0:8d87bc453349 380
ninoderkinderen 0:8d87bc453349 381 /*
ninoderkinderen 0:8d87bc453349 382 * lcp_lowerdown - The lower layer is down.
ninoderkinderen 0:8d87bc453349 383 */
ninoderkinderen 0:8d87bc453349 384 void
ninoderkinderen 0:8d87bc453349 385 lcp_lowerdown(int unit)
ninoderkinderen 0:8d87bc453349 386 {
ninoderkinderen 0:8d87bc453349 387 fsm_lowerdown(&lcp_fsm[unit]);
ninoderkinderen 0:8d87bc453349 388 }
ninoderkinderen 0:8d87bc453349 389
ninoderkinderen 0:8d87bc453349 390
ninoderkinderen 0:8d87bc453349 391 /*
ninoderkinderen 0:8d87bc453349 392 * lcp_input - Input LCP packet.
ninoderkinderen 0:8d87bc453349 393 */
ninoderkinderen 0:8d87bc453349 394 static void
ninoderkinderen 0:8d87bc453349 395 lcp_input(int unit, u_char *p, int len)
ninoderkinderen 0:8d87bc453349 396 {
ninoderkinderen 0:8d87bc453349 397 fsm *f = &lcp_fsm[unit];
ninoderkinderen 0:8d87bc453349 398
ninoderkinderen 0:8d87bc453349 399 fsm_input(f, p, len);
ninoderkinderen 0:8d87bc453349 400 }
ninoderkinderen 0:8d87bc453349 401
ninoderkinderen 0:8d87bc453349 402
ninoderkinderen 0:8d87bc453349 403 /*
ninoderkinderen 0:8d87bc453349 404 * lcp_extcode - Handle a LCP-specific code.
ninoderkinderen 0:8d87bc453349 405 */
ninoderkinderen 0:8d87bc453349 406 static int
ninoderkinderen 0:8d87bc453349 407 lcp_extcode(fsm *f, int code, u_char id, u_char *inp, int len)
ninoderkinderen 0:8d87bc453349 408 {
ninoderkinderen 0:8d87bc453349 409 u_char *magp;
ninoderkinderen 0:8d87bc453349 410
ninoderkinderen 0:8d87bc453349 411 switch( code ){
ninoderkinderen 0:8d87bc453349 412 case PROTREJ:
ninoderkinderen 0:8d87bc453349 413 lcp_rprotrej(f, inp, len);
ninoderkinderen 0:8d87bc453349 414 break;
ninoderkinderen 0:8d87bc453349 415
ninoderkinderen 0:8d87bc453349 416 case ECHOREQ:
ninoderkinderen 0:8d87bc453349 417 if (f->state != LS_OPENED) {
ninoderkinderen 0:8d87bc453349 418 break;
ninoderkinderen 0:8d87bc453349 419 }
ninoderkinderen 0:8d87bc453349 420 LCPDEBUG(LOG_INFO, ("lcp: Echo-Request, Rcvd id %d\n", id));
ninoderkinderen 0:8d87bc453349 421 magp = inp;
ninoderkinderen 0:8d87bc453349 422 PUTLONG(lcp_gotoptions[f->unit].magicnumber, magp);
ninoderkinderen 0:8d87bc453349 423 fsm_sdata(f, ECHOREP, id, inp, len);
ninoderkinderen 0:8d87bc453349 424 break;
ninoderkinderen 0:8d87bc453349 425
ninoderkinderen 0:8d87bc453349 426 case ECHOREP:
ninoderkinderen 0:8d87bc453349 427 lcp_received_echo_reply(f, id, inp, len);
ninoderkinderen 0:8d87bc453349 428 break;
ninoderkinderen 0:8d87bc453349 429
ninoderkinderen 0:8d87bc453349 430 case DISCREQ:
ninoderkinderen 0:8d87bc453349 431 break;
ninoderkinderen 0:8d87bc453349 432
ninoderkinderen 0:8d87bc453349 433 default:
ninoderkinderen 0:8d87bc453349 434 return 0;
ninoderkinderen 0:8d87bc453349 435 }
ninoderkinderen 0:8d87bc453349 436 return 1;
ninoderkinderen 0:8d87bc453349 437 }
ninoderkinderen 0:8d87bc453349 438
ninoderkinderen 0:8d87bc453349 439
ninoderkinderen 0:8d87bc453349 440 /*
ninoderkinderen 0:8d87bc453349 441 * lcp_rprotrej - Receive an Protocol-Reject.
ninoderkinderen 0:8d87bc453349 442 *
ninoderkinderen 0:8d87bc453349 443 * Figure out which protocol is rejected and inform it.
ninoderkinderen 0:8d87bc453349 444 */
ninoderkinderen 0:8d87bc453349 445 static void
ninoderkinderen 0:8d87bc453349 446 lcp_rprotrej(fsm *f, u_char *inp, int len)
ninoderkinderen 0:8d87bc453349 447 {
ninoderkinderen 0:8d87bc453349 448 int i;
ninoderkinderen 0:8d87bc453349 449 struct protent *protp;
ninoderkinderen 0:8d87bc453349 450 u_short prot;
ninoderkinderen 0:8d87bc453349 451
ninoderkinderen 0:8d87bc453349 452 if (len < (int)sizeof (u_short)) {
ninoderkinderen 0:8d87bc453349 453 LCPDEBUG(LOG_INFO, ("lcp_rprotrej: Rcvd short Protocol-Reject packet!\n"));
ninoderkinderen 0:8d87bc453349 454 return;
ninoderkinderen 0:8d87bc453349 455 }
ninoderkinderen 0:8d87bc453349 456
ninoderkinderen 0:8d87bc453349 457 GETSHORT(prot, inp);
ninoderkinderen 0:8d87bc453349 458
ninoderkinderen 0:8d87bc453349 459 LCPDEBUG(LOG_INFO, ("lcp_rprotrej: Rcvd Protocol-Reject packet for %x!\n", prot));
ninoderkinderen 0:8d87bc453349 460
ninoderkinderen 0:8d87bc453349 461 /*
ninoderkinderen 0:8d87bc453349 462 * Protocol-Reject packets received in any state other than the LCP
ninoderkinderen 0:8d87bc453349 463 * LS_OPENED state SHOULD be silently discarded.
ninoderkinderen 0:8d87bc453349 464 */
ninoderkinderen 0:8d87bc453349 465 if( f->state != LS_OPENED ) {
ninoderkinderen 0:8d87bc453349 466 LCPDEBUG(LOG_INFO, ("Protocol-Reject discarded: LCP in state %d\n", f->state));
ninoderkinderen 0:8d87bc453349 467 return;
ninoderkinderen 0:8d87bc453349 468 }
ninoderkinderen 0:8d87bc453349 469
ninoderkinderen 0:8d87bc453349 470 /*
ninoderkinderen 0:8d87bc453349 471 * Upcall the proper Protocol-Reject routine.
ninoderkinderen 0:8d87bc453349 472 */
ninoderkinderen 0:8d87bc453349 473 for (i = 0; (protp = ppp_protocols[i]) != NULL; ++i) {
ninoderkinderen 0:8d87bc453349 474 if (protp->protocol == prot && protp->enabled_flag) {
ninoderkinderen 0:8d87bc453349 475 (*protp->protrej)(f->unit);
ninoderkinderen 0:8d87bc453349 476 return;
ninoderkinderen 0:8d87bc453349 477 }
ninoderkinderen 0:8d87bc453349 478 }
ninoderkinderen 0:8d87bc453349 479
ninoderkinderen 0:8d87bc453349 480 LCPDEBUG(LOG_WARNING, ("Protocol-Reject for unsupported protocol 0x%x\n", prot));
ninoderkinderen 0:8d87bc453349 481 }
ninoderkinderen 0:8d87bc453349 482
ninoderkinderen 0:8d87bc453349 483
ninoderkinderen 0:8d87bc453349 484 /*
ninoderkinderen 0:8d87bc453349 485 * lcp_protrej - A Protocol-Reject was received.
ninoderkinderen 0:8d87bc453349 486 */
ninoderkinderen 0:8d87bc453349 487 static void
ninoderkinderen 0:8d87bc453349 488 lcp_protrej(int unit)
ninoderkinderen 0:8d87bc453349 489 {
ninoderkinderen 0:8d87bc453349 490 LWIP_UNUSED_ARG(unit);
ninoderkinderen 0:8d87bc453349 491 /*
ninoderkinderen 0:8d87bc453349 492 * Can't reject LCP!
ninoderkinderen 0:8d87bc453349 493 */
ninoderkinderen 0:8d87bc453349 494 LCPDEBUG(LOG_WARNING, ("lcp_protrej: Received Protocol-Reject for LCP!\n"));
ninoderkinderen 0:8d87bc453349 495 fsm_protreject(&lcp_fsm[unit]);
ninoderkinderen 0:8d87bc453349 496 }
ninoderkinderen 0:8d87bc453349 497
ninoderkinderen 0:8d87bc453349 498
ninoderkinderen 0:8d87bc453349 499 /*
ninoderkinderen 0:8d87bc453349 500 * lcp_sprotrej - Send a Protocol-Reject for some protocol.
ninoderkinderen 0:8d87bc453349 501 */
ninoderkinderen 0:8d87bc453349 502 void
ninoderkinderen 0:8d87bc453349 503 lcp_sprotrej(int unit, u_char *p, int len)
ninoderkinderen 0:8d87bc453349 504 {
ninoderkinderen 0:8d87bc453349 505 /*
ninoderkinderen 0:8d87bc453349 506 * Send back the protocol and the information field of the
ninoderkinderen 0:8d87bc453349 507 * rejected packet. We only get here if LCP is in the LS_OPENED state.
ninoderkinderen 0:8d87bc453349 508 */
ninoderkinderen 0:8d87bc453349 509
ninoderkinderen 0:8d87bc453349 510 fsm_sdata(&lcp_fsm[unit], PROTREJ, ++lcp_fsm[unit].id, p, len);
ninoderkinderen 0:8d87bc453349 511 }
ninoderkinderen 0:8d87bc453349 512
ninoderkinderen 0:8d87bc453349 513
ninoderkinderen 0:8d87bc453349 514 /*
ninoderkinderen 0:8d87bc453349 515 * lcp_resetci - Reset our CI.
ninoderkinderen 0:8d87bc453349 516 */
ninoderkinderen 0:8d87bc453349 517 static void
ninoderkinderen 0:8d87bc453349 518 lcp_resetci(fsm *f)
ninoderkinderen 0:8d87bc453349 519 {
ninoderkinderen 0:8d87bc453349 520 lcp_wantoptions[f->unit].magicnumber = magic();
ninoderkinderen 0:8d87bc453349 521 lcp_wantoptions[f->unit].numloops = 0;
ninoderkinderen 0:8d87bc453349 522 lcp_gotoptions[f->unit] = lcp_wantoptions[f->unit];
ninoderkinderen 0:8d87bc453349 523 peer_mru[f->unit] = PPP_MRU;
ninoderkinderen 0:8d87bc453349 524 auth_reset(f->unit);
ninoderkinderen 0:8d87bc453349 525 }
ninoderkinderen 0:8d87bc453349 526
ninoderkinderen 0:8d87bc453349 527
ninoderkinderen 0:8d87bc453349 528 /*
ninoderkinderen 0:8d87bc453349 529 * lcp_cilen - Return length of our CI.
ninoderkinderen 0:8d87bc453349 530 */
ninoderkinderen 0:8d87bc453349 531 static int
ninoderkinderen 0:8d87bc453349 532 lcp_cilen(fsm *f)
ninoderkinderen 0:8d87bc453349 533 {
ninoderkinderen 0:8d87bc453349 534 lcp_options *go = &lcp_gotoptions[f->unit];
ninoderkinderen 0:8d87bc453349 535
ninoderkinderen 0:8d87bc453349 536 #define LENCIVOID(neg) ((neg) ? CILEN_VOID : 0)
ninoderkinderen 0:8d87bc453349 537 #define LENCICHAP(neg) ((neg) ? CILEN_CHAP : 0)
ninoderkinderen 0:8d87bc453349 538 #define LENCISHORT(neg) ((neg) ? CILEN_SHORT : 0)
ninoderkinderen 0:8d87bc453349 539 #define LENCILONG(neg) ((neg) ? CILEN_LONG : 0)
ninoderkinderen 0:8d87bc453349 540 #define LENCILQR(neg) ((neg) ? CILEN_LQR: 0)
ninoderkinderen 0:8d87bc453349 541 #define LENCICBCP(neg) ((neg) ? CILEN_CBCP: 0)
ninoderkinderen 0:8d87bc453349 542 /*
ninoderkinderen 0:8d87bc453349 543 * NB: we only ask for one of CHAP and UPAP, even if we will
ninoderkinderen 0:8d87bc453349 544 * accept either.
ninoderkinderen 0:8d87bc453349 545 */
ninoderkinderen 0:8d87bc453349 546 return (LENCISHORT(go->neg_mru && go->mru != PPP_DEFMRU) +
ninoderkinderen 0:8d87bc453349 547 LENCILONG(go->neg_asyncmap && go->asyncmap != 0xFFFFFFFFl) +
ninoderkinderen 0:8d87bc453349 548 LENCICHAP(go->neg_chap) +
ninoderkinderen 0:8d87bc453349 549 LENCISHORT(!go->neg_chap && go->neg_upap) +
ninoderkinderen 0:8d87bc453349 550 LENCILQR(go->neg_lqr) +
ninoderkinderen 0:8d87bc453349 551 LENCICBCP(go->neg_cbcp) +
ninoderkinderen 0:8d87bc453349 552 LENCILONG(go->neg_magicnumber) +
ninoderkinderen 0:8d87bc453349 553 LENCIVOID(go->neg_pcompression) +
ninoderkinderen 0:8d87bc453349 554 LENCIVOID(go->neg_accompression));
ninoderkinderen 0:8d87bc453349 555 }
ninoderkinderen 0:8d87bc453349 556
ninoderkinderen 0:8d87bc453349 557
ninoderkinderen 0:8d87bc453349 558 /*
ninoderkinderen 0:8d87bc453349 559 * lcp_addci - Add our desired CIs to a packet.
ninoderkinderen 0:8d87bc453349 560 */
ninoderkinderen 0:8d87bc453349 561 static void
ninoderkinderen 0:8d87bc453349 562 lcp_addci(fsm *f, u_char *ucp, int *lenp)
ninoderkinderen 0:8d87bc453349 563 {
ninoderkinderen 0:8d87bc453349 564 lcp_options *go = &lcp_gotoptions[f->unit];
ninoderkinderen 0:8d87bc453349 565 u_char *start_ucp = ucp;
ninoderkinderen 0:8d87bc453349 566
ninoderkinderen 0:8d87bc453349 567 #define ADDCIVOID(opt, neg) \
ninoderkinderen 0:8d87bc453349 568 if (neg) { \
ninoderkinderen 0:8d87bc453349 569 LCPDEBUG(LOG_INFO, ("lcp_addci: opt=%d\n", opt)); \
ninoderkinderen 0:8d87bc453349 570 PUTCHAR(opt, ucp); \
ninoderkinderen 0:8d87bc453349 571 PUTCHAR(CILEN_VOID, ucp); \
ninoderkinderen 0:8d87bc453349 572 }
ninoderkinderen 0:8d87bc453349 573 #define ADDCISHORT(opt, neg, val) \
ninoderkinderen 0:8d87bc453349 574 if (neg) { \
ninoderkinderen 0:8d87bc453349 575 LCPDEBUG(LOG_INFO, ("lcp_addci: INT opt=%d %X\n", opt, val)); \
ninoderkinderen 0:8d87bc453349 576 PUTCHAR(opt, ucp); \
ninoderkinderen 0:8d87bc453349 577 PUTCHAR(CILEN_SHORT, ucp); \
ninoderkinderen 0:8d87bc453349 578 PUTSHORT(val, ucp); \
ninoderkinderen 0:8d87bc453349 579 }
ninoderkinderen 0:8d87bc453349 580 #define ADDCICHAP(opt, neg, val, digest) \
ninoderkinderen 0:8d87bc453349 581 if (neg) { \
ninoderkinderen 0:8d87bc453349 582 LCPDEBUG(LOG_INFO, ("lcp_addci: CHAP opt=%d %X\n", opt, val)); \
ninoderkinderen 0:8d87bc453349 583 PUTCHAR(opt, ucp); \
ninoderkinderen 0:8d87bc453349 584 PUTCHAR(CILEN_CHAP, ucp); \
ninoderkinderen 0:8d87bc453349 585 PUTSHORT(val, ucp); \
ninoderkinderen 0:8d87bc453349 586 PUTCHAR(digest, ucp); \
ninoderkinderen 0:8d87bc453349 587 }
ninoderkinderen 0:8d87bc453349 588 #define ADDCILONG(opt, neg, val) \
ninoderkinderen 0:8d87bc453349 589 if (neg) { \
ninoderkinderen 0:8d87bc453349 590 LCPDEBUG(LOG_INFO, ("lcp_addci: L opt=%d %lX\n", opt, val)); \
ninoderkinderen 0:8d87bc453349 591 PUTCHAR(opt, ucp); \
ninoderkinderen 0:8d87bc453349 592 PUTCHAR(CILEN_LONG, ucp); \
ninoderkinderen 0:8d87bc453349 593 PUTLONG(val, ucp); \
ninoderkinderen 0:8d87bc453349 594 }
ninoderkinderen 0:8d87bc453349 595 #define ADDCILQR(opt, neg, val) \
ninoderkinderen 0:8d87bc453349 596 if (neg) { \
ninoderkinderen 0:8d87bc453349 597 LCPDEBUG(LOG_INFO, ("lcp_addci: LQR opt=%d %lX\n", opt, val)); \
ninoderkinderen 0:8d87bc453349 598 PUTCHAR(opt, ucp); \
ninoderkinderen 0:8d87bc453349 599 PUTCHAR(CILEN_LQR, ucp); \
ninoderkinderen 0:8d87bc453349 600 PUTSHORT(PPP_LQR, ucp); \
ninoderkinderen 0:8d87bc453349 601 PUTLONG(val, ucp); \
ninoderkinderen 0:8d87bc453349 602 }
ninoderkinderen 0:8d87bc453349 603 #define ADDCICHAR(opt, neg, val) \
ninoderkinderen 0:8d87bc453349 604 if (neg) { \
ninoderkinderen 0:8d87bc453349 605 LCPDEBUG(LOG_INFO, ("lcp_addci: CHAR opt=%d %X '%z'\n", opt, val, val)); \
ninoderkinderen 0:8d87bc453349 606 PUTCHAR(opt, ucp); \
ninoderkinderen 0:8d87bc453349 607 PUTCHAR(CILEN_CHAR, ucp); \
ninoderkinderen 0:8d87bc453349 608 PUTCHAR(val, ucp); \
ninoderkinderen 0:8d87bc453349 609 }
ninoderkinderen 0:8d87bc453349 610
ninoderkinderen 0:8d87bc453349 611 ADDCISHORT(CI_MRU, go->neg_mru && go->mru != PPP_DEFMRU, go->mru);
ninoderkinderen 0:8d87bc453349 612 ADDCILONG(CI_ASYNCMAP, go->neg_asyncmap && go->asyncmap != 0xFFFFFFFFl, go->asyncmap);
ninoderkinderen 0:8d87bc453349 613 ADDCICHAP(CI_AUTHTYPE, go->neg_chap, PPP_CHAP, go->chap_mdtype);
ninoderkinderen 0:8d87bc453349 614 ADDCISHORT(CI_AUTHTYPE, !go->neg_chap && go->neg_upap, PPP_PAP);
ninoderkinderen 0:8d87bc453349 615 ADDCILQR(CI_QUALITY, go->neg_lqr, go->lqr_period);
ninoderkinderen 0:8d87bc453349 616 ADDCICHAR(CI_CALLBACK, go->neg_cbcp, CBCP_OPT);
ninoderkinderen 0:8d87bc453349 617 ADDCILONG(CI_MAGICNUMBER, go->neg_magicnumber, go->magicnumber);
ninoderkinderen 0:8d87bc453349 618 ADDCIVOID(CI_PCOMPRESSION, go->neg_pcompression);
ninoderkinderen 0:8d87bc453349 619 ADDCIVOID(CI_ACCOMPRESSION, go->neg_accompression);
ninoderkinderen 0:8d87bc453349 620
ninoderkinderen 0:8d87bc453349 621 if (ucp - start_ucp != *lenp) {
ninoderkinderen 0:8d87bc453349 622 /* this should never happen, because peer_mtu should be 1500 */
ninoderkinderen 0:8d87bc453349 623 LCPDEBUG(LOG_ERR, ("Bug in lcp_addci: wrong length\n"));
ninoderkinderen 0:8d87bc453349 624 }
ninoderkinderen 0:8d87bc453349 625 }
ninoderkinderen 0:8d87bc453349 626
ninoderkinderen 0:8d87bc453349 627
ninoderkinderen 0:8d87bc453349 628 /*
ninoderkinderen 0:8d87bc453349 629 * lcp_ackci - Ack our CIs.
ninoderkinderen 0:8d87bc453349 630 * This should not modify any state if the Ack is bad.
ninoderkinderen 0:8d87bc453349 631 *
ninoderkinderen 0:8d87bc453349 632 * Returns:
ninoderkinderen 0:8d87bc453349 633 * 0 - Ack was bad.
ninoderkinderen 0:8d87bc453349 634 * 1 - Ack was good.
ninoderkinderen 0:8d87bc453349 635 */
ninoderkinderen 0:8d87bc453349 636 static int
ninoderkinderen 0:8d87bc453349 637 lcp_ackci(fsm *f, u_char *p, int len)
ninoderkinderen 0:8d87bc453349 638 {
ninoderkinderen 0:8d87bc453349 639 lcp_options *go = &lcp_gotoptions[f->unit];
ninoderkinderen 0:8d87bc453349 640 u_char cilen, citype, cichar;
ninoderkinderen 0:8d87bc453349 641 u_short cishort;
ninoderkinderen 0:8d87bc453349 642 u32_t cilong;
ninoderkinderen 0:8d87bc453349 643
ninoderkinderen 0:8d87bc453349 644 /*
ninoderkinderen 0:8d87bc453349 645 * CIs must be in exactly the same order that we sent.
ninoderkinderen 0:8d87bc453349 646 * Check packet length and CI length at each step.
ninoderkinderen 0:8d87bc453349 647 * If we find any deviations, then this packet is bad.
ninoderkinderen 0:8d87bc453349 648 */
ninoderkinderen 0:8d87bc453349 649 #define ACKCIVOID(opt, neg) \
ninoderkinderen 0:8d87bc453349 650 if (neg) { \
ninoderkinderen 0:8d87bc453349 651 if ((len -= CILEN_VOID) < 0) \
ninoderkinderen 0:8d87bc453349 652 goto bad; \
ninoderkinderen 0:8d87bc453349 653 GETCHAR(citype, p); \
ninoderkinderen 0:8d87bc453349 654 GETCHAR(cilen, p); \
ninoderkinderen 0:8d87bc453349 655 if (cilen != CILEN_VOID || citype != opt) \
ninoderkinderen 0:8d87bc453349 656 goto bad; \
ninoderkinderen 0:8d87bc453349 657 }
ninoderkinderen 0:8d87bc453349 658 #define ACKCISHORT(opt, neg, val) \
ninoderkinderen 0:8d87bc453349 659 if (neg) { \
ninoderkinderen 0:8d87bc453349 660 if ((len -= CILEN_SHORT) < 0) \
ninoderkinderen 0:8d87bc453349 661 goto bad; \
ninoderkinderen 0:8d87bc453349 662 GETCHAR(citype, p); \
ninoderkinderen 0:8d87bc453349 663 GETCHAR(cilen, p); \
ninoderkinderen 0:8d87bc453349 664 if (cilen != CILEN_SHORT || citype != opt) \
ninoderkinderen 0:8d87bc453349 665 goto bad; \
ninoderkinderen 0:8d87bc453349 666 GETSHORT(cishort, p); \
ninoderkinderen 0:8d87bc453349 667 if (cishort != val) \
ninoderkinderen 0:8d87bc453349 668 goto bad; \
ninoderkinderen 0:8d87bc453349 669 }
ninoderkinderen 0:8d87bc453349 670 #define ACKCICHAR(opt, neg, val) \
ninoderkinderen 0:8d87bc453349 671 if (neg) { \
ninoderkinderen 0:8d87bc453349 672 if ((len -= CILEN_CHAR) < 0) \
ninoderkinderen 0:8d87bc453349 673 goto bad; \
ninoderkinderen 0:8d87bc453349 674 GETCHAR(citype, p); \
ninoderkinderen 0:8d87bc453349 675 GETCHAR(cilen, p); \
ninoderkinderen 0:8d87bc453349 676 if (cilen != CILEN_CHAR || citype != opt) \
ninoderkinderen 0:8d87bc453349 677 goto bad; \
ninoderkinderen 0:8d87bc453349 678 GETCHAR(cichar, p); \
ninoderkinderen 0:8d87bc453349 679 if (cichar != val) \
ninoderkinderen 0:8d87bc453349 680 goto bad; \
ninoderkinderen 0:8d87bc453349 681 }
ninoderkinderen 0:8d87bc453349 682 #define ACKCICHAP(opt, neg, val, digest) \
ninoderkinderen 0:8d87bc453349 683 if (neg) { \
ninoderkinderen 0:8d87bc453349 684 if ((len -= CILEN_CHAP) < 0) \
ninoderkinderen 0:8d87bc453349 685 goto bad; \
ninoderkinderen 0:8d87bc453349 686 GETCHAR(citype, p); \
ninoderkinderen 0:8d87bc453349 687 GETCHAR(cilen, p); \
ninoderkinderen 0:8d87bc453349 688 if (cilen != CILEN_CHAP || citype != opt) \
ninoderkinderen 0:8d87bc453349 689 goto bad; \
ninoderkinderen 0:8d87bc453349 690 GETSHORT(cishort, p); \
ninoderkinderen 0:8d87bc453349 691 if (cishort != val) \
ninoderkinderen 0:8d87bc453349 692 goto bad; \
ninoderkinderen 0:8d87bc453349 693 GETCHAR(cichar, p); \
ninoderkinderen 0:8d87bc453349 694 if (cichar != digest) \
ninoderkinderen 0:8d87bc453349 695 goto bad; \
ninoderkinderen 0:8d87bc453349 696 }
ninoderkinderen 0:8d87bc453349 697 #define ACKCILONG(opt, neg, val) \
ninoderkinderen 0:8d87bc453349 698 if (neg) { \
ninoderkinderen 0:8d87bc453349 699 if ((len -= CILEN_LONG) < 0) \
ninoderkinderen 0:8d87bc453349 700 goto bad; \
ninoderkinderen 0:8d87bc453349 701 GETCHAR(citype, p); \
ninoderkinderen 0:8d87bc453349 702 GETCHAR(cilen, p); \
ninoderkinderen 0:8d87bc453349 703 if (cilen != CILEN_LONG || citype != opt) \
ninoderkinderen 0:8d87bc453349 704 goto bad; \
ninoderkinderen 0:8d87bc453349 705 GETLONG(cilong, p); \
ninoderkinderen 0:8d87bc453349 706 if (cilong != val) \
ninoderkinderen 0:8d87bc453349 707 goto bad; \
ninoderkinderen 0:8d87bc453349 708 }
ninoderkinderen 0:8d87bc453349 709 #define ACKCILQR(opt, neg, val) \
ninoderkinderen 0:8d87bc453349 710 if (neg) { \
ninoderkinderen 0:8d87bc453349 711 if ((len -= CILEN_LQR) < 0) \
ninoderkinderen 0:8d87bc453349 712 goto bad; \
ninoderkinderen 0:8d87bc453349 713 GETCHAR(citype, p); \
ninoderkinderen 0:8d87bc453349 714 GETCHAR(cilen, p); \
ninoderkinderen 0:8d87bc453349 715 if (cilen != CILEN_LQR || citype != opt) \
ninoderkinderen 0:8d87bc453349 716 goto bad; \
ninoderkinderen 0:8d87bc453349 717 GETSHORT(cishort, p); \
ninoderkinderen 0:8d87bc453349 718 if (cishort != PPP_LQR) \
ninoderkinderen 0:8d87bc453349 719 goto bad; \
ninoderkinderen 0:8d87bc453349 720 GETLONG(cilong, p); \
ninoderkinderen 0:8d87bc453349 721 if (cilong != val) \
ninoderkinderen 0:8d87bc453349 722 goto bad; \
ninoderkinderen 0:8d87bc453349 723 }
ninoderkinderen 0:8d87bc453349 724
ninoderkinderen 0:8d87bc453349 725 ACKCISHORT(CI_MRU, go->neg_mru && go->mru != PPP_DEFMRU, go->mru);
ninoderkinderen 0:8d87bc453349 726 ACKCILONG(CI_ASYNCMAP, go->neg_asyncmap && go->asyncmap != 0xFFFFFFFFl, go->asyncmap);
ninoderkinderen 0:8d87bc453349 727 ACKCICHAP(CI_AUTHTYPE, go->neg_chap, PPP_CHAP, go->chap_mdtype);
ninoderkinderen 0:8d87bc453349 728 ACKCISHORT(CI_AUTHTYPE, !go->neg_chap && go->neg_upap, PPP_PAP);
ninoderkinderen 0:8d87bc453349 729 ACKCILQR(CI_QUALITY, go->neg_lqr, go->lqr_period);
ninoderkinderen 0:8d87bc453349 730 ACKCICHAR(CI_CALLBACK, go->neg_cbcp, CBCP_OPT);
ninoderkinderen 0:8d87bc453349 731 ACKCILONG(CI_MAGICNUMBER, go->neg_magicnumber, go->magicnumber);
ninoderkinderen 0:8d87bc453349 732 ACKCIVOID(CI_PCOMPRESSION, go->neg_pcompression);
ninoderkinderen 0:8d87bc453349 733 ACKCIVOID(CI_ACCOMPRESSION, go->neg_accompression);
ninoderkinderen 0:8d87bc453349 734
ninoderkinderen 0:8d87bc453349 735 /*
ninoderkinderen 0:8d87bc453349 736 * If there are any remaining CIs, then this packet is bad.
ninoderkinderen 0:8d87bc453349 737 */
ninoderkinderen 0:8d87bc453349 738 if (len != 0) {
ninoderkinderen 0:8d87bc453349 739 goto bad;
ninoderkinderen 0:8d87bc453349 740 }
ninoderkinderen 0:8d87bc453349 741 LCPDEBUG(LOG_INFO, ("lcp_acki: Ack\n"));
ninoderkinderen 0:8d87bc453349 742 return (1);
ninoderkinderen 0:8d87bc453349 743 bad:
ninoderkinderen 0:8d87bc453349 744 LCPDEBUG(LOG_WARNING, ("lcp_acki: received bad Ack!\n"));
ninoderkinderen 0:8d87bc453349 745 return (0);
ninoderkinderen 0:8d87bc453349 746 }
ninoderkinderen 0:8d87bc453349 747
ninoderkinderen 0:8d87bc453349 748
ninoderkinderen 0:8d87bc453349 749 /*
ninoderkinderen 0:8d87bc453349 750 * lcp_nakci - Peer has sent a NAK for some of our CIs.
ninoderkinderen 0:8d87bc453349 751 * This should not modify any state if the Nak is bad
ninoderkinderen 0:8d87bc453349 752 * or if LCP is in the LS_OPENED state.
ninoderkinderen 0:8d87bc453349 753 *
ninoderkinderen 0:8d87bc453349 754 * Returns:
ninoderkinderen 0:8d87bc453349 755 * 0 - Nak was bad.
ninoderkinderen 0:8d87bc453349 756 * 1 - Nak was good.
ninoderkinderen 0:8d87bc453349 757 */
ninoderkinderen 0:8d87bc453349 758 static int
ninoderkinderen 0:8d87bc453349 759 lcp_nakci(fsm *f, u_char *p, int len)
ninoderkinderen 0:8d87bc453349 760 {
ninoderkinderen 0:8d87bc453349 761 lcp_options *go = &lcp_gotoptions[f->unit];
ninoderkinderen 0:8d87bc453349 762 lcp_options *wo = &lcp_wantoptions[f->unit];
ninoderkinderen 0:8d87bc453349 763 u_char citype, cichar, *next;
ninoderkinderen 0:8d87bc453349 764 u_short cishort;
ninoderkinderen 0:8d87bc453349 765 u32_t cilong;
ninoderkinderen 0:8d87bc453349 766 lcp_options no; /* options we've seen Naks for */
ninoderkinderen 0:8d87bc453349 767 lcp_options try; /* options to request next time */
ninoderkinderen 0:8d87bc453349 768 int looped_back = 0;
ninoderkinderen 0:8d87bc453349 769 int cilen;
ninoderkinderen 0:8d87bc453349 770
ninoderkinderen 0:8d87bc453349 771 BZERO(&no, sizeof(no));
ninoderkinderen 0:8d87bc453349 772 try = *go;
ninoderkinderen 0:8d87bc453349 773
ninoderkinderen 0:8d87bc453349 774 /*
ninoderkinderen 0:8d87bc453349 775 * Any Nak'd CIs must be in exactly the same order that we sent.
ninoderkinderen 0:8d87bc453349 776 * Check packet length and CI length at each step.
ninoderkinderen 0:8d87bc453349 777 * If we find any deviations, then this packet is bad.
ninoderkinderen 0:8d87bc453349 778 */
ninoderkinderen 0:8d87bc453349 779 #define NAKCIVOID(opt, neg, code) \
ninoderkinderen 0:8d87bc453349 780 if (go->neg && \
ninoderkinderen 0:8d87bc453349 781 len >= CILEN_VOID && \
ninoderkinderen 0:8d87bc453349 782 p[1] == CILEN_VOID && \
ninoderkinderen 0:8d87bc453349 783 p[0] == opt) { \
ninoderkinderen 0:8d87bc453349 784 len -= CILEN_VOID; \
ninoderkinderen 0:8d87bc453349 785 INCPTR(CILEN_VOID, p); \
ninoderkinderen 0:8d87bc453349 786 no.neg = 1; \
ninoderkinderen 0:8d87bc453349 787 code \
ninoderkinderen 0:8d87bc453349 788 }
ninoderkinderen 0:8d87bc453349 789 #define NAKCICHAP(opt, neg, code) \
ninoderkinderen 0:8d87bc453349 790 if (go->neg && \
ninoderkinderen 0:8d87bc453349 791 len >= CILEN_CHAP && \
ninoderkinderen 0:8d87bc453349 792 p[1] == CILEN_CHAP && \
ninoderkinderen 0:8d87bc453349 793 p[0] == opt) { \
ninoderkinderen 0:8d87bc453349 794 len -= CILEN_CHAP; \
ninoderkinderen 0:8d87bc453349 795 INCPTR(2, p); \
ninoderkinderen 0:8d87bc453349 796 GETSHORT(cishort, p); \
ninoderkinderen 0:8d87bc453349 797 GETCHAR(cichar, p); \
ninoderkinderen 0:8d87bc453349 798 no.neg = 1; \
ninoderkinderen 0:8d87bc453349 799 code \
ninoderkinderen 0:8d87bc453349 800 }
ninoderkinderen 0:8d87bc453349 801 #define NAKCICHAR(opt, neg, code) \
ninoderkinderen 0:8d87bc453349 802 if (go->neg && \
ninoderkinderen 0:8d87bc453349 803 len >= CILEN_CHAR && \
ninoderkinderen 0:8d87bc453349 804 p[1] == CILEN_CHAR && \
ninoderkinderen 0:8d87bc453349 805 p[0] == opt) { \
ninoderkinderen 0:8d87bc453349 806 len -= CILEN_CHAR; \
ninoderkinderen 0:8d87bc453349 807 INCPTR(2, p); \
ninoderkinderen 0:8d87bc453349 808 GETCHAR(cichar, p); \
ninoderkinderen 0:8d87bc453349 809 no.neg = 1; \
ninoderkinderen 0:8d87bc453349 810 code \
ninoderkinderen 0:8d87bc453349 811 }
ninoderkinderen 0:8d87bc453349 812 #define NAKCISHORT(opt, neg, code) \
ninoderkinderen 0:8d87bc453349 813 if (go->neg && \
ninoderkinderen 0:8d87bc453349 814 len >= CILEN_SHORT && \
ninoderkinderen 0:8d87bc453349 815 p[1] == CILEN_SHORT && \
ninoderkinderen 0:8d87bc453349 816 p[0] == opt) { \
ninoderkinderen 0:8d87bc453349 817 len -= CILEN_SHORT; \
ninoderkinderen 0:8d87bc453349 818 INCPTR(2, p); \
ninoderkinderen 0:8d87bc453349 819 GETSHORT(cishort, p); \
ninoderkinderen 0:8d87bc453349 820 no.neg = 1; \
ninoderkinderen 0:8d87bc453349 821 code \
ninoderkinderen 0:8d87bc453349 822 }
ninoderkinderen 0:8d87bc453349 823 #define NAKCILONG(opt, neg, code) \
ninoderkinderen 0:8d87bc453349 824 if (go->neg && \
ninoderkinderen 0:8d87bc453349 825 len >= CILEN_LONG && \
ninoderkinderen 0:8d87bc453349 826 p[1] == CILEN_LONG && \
ninoderkinderen 0:8d87bc453349 827 p[0] == opt) { \
ninoderkinderen 0:8d87bc453349 828 len -= CILEN_LONG; \
ninoderkinderen 0:8d87bc453349 829 INCPTR(2, p); \
ninoderkinderen 0:8d87bc453349 830 GETLONG(cilong, p); \
ninoderkinderen 0:8d87bc453349 831 no.neg = 1; \
ninoderkinderen 0:8d87bc453349 832 code \
ninoderkinderen 0:8d87bc453349 833 }
ninoderkinderen 0:8d87bc453349 834 #define NAKCILQR(opt, neg, code) \
ninoderkinderen 0:8d87bc453349 835 if (go->neg && \
ninoderkinderen 0:8d87bc453349 836 len >= CILEN_LQR && \
ninoderkinderen 0:8d87bc453349 837 p[1] == CILEN_LQR && \
ninoderkinderen 0:8d87bc453349 838 p[0] == opt) { \
ninoderkinderen 0:8d87bc453349 839 len -= CILEN_LQR; \
ninoderkinderen 0:8d87bc453349 840 INCPTR(2, p); \
ninoderkinderen 0:8d87bc453349 841 GETSHORT(cishort, p); \
ninoderkinderen 0:8d87bc453349 842 GETLONG(cilong, p); \
ninoderkinderen 0:8d87bc453349 843 no.neg = 1; \
ninoderkinderen 0:8d87bc453349 844 code \
ninoderkinderen 0:8d87bc453349 845 }
ninoderkinderen 0:8d87bc453349 846
ninoderkinderen 0:8d87bc453349 847 /*
ninoderkinderen 0:8d87bc453349 848 * We don't care if they want to send us smaller packets than
ninoderkinderen 0:8d87bc453349 849 * we want. Therefore, accept any MRU less than what we asked for,
ninoderkinderen 0:8d87bc453349 850 * but then ignore the new value when setting the MRU in the kernel.
ninoderkinderen 0:8d87bc453349 851 * If they send us a bigger MRU than what we asked, accept it, up to
ninoderkinderen 0:8d87bc453349 852 * the limit of the default MRU we'd get if we didn't negotiate.
ninoderkinderen 0:8d87bc453349 853 */
ninoderkinderen 0:8d87bc453349 854 if (go->neg_mru && go->mru != PPP_DEFMRU) {
ninoderkinderen 0:8d87bc453349 855 NAKCISHORT(CI_MRU, neg_mru,
ninoderkinderen 0:8d87bc453349 856 if (cishort <= wo->mru || cishort < PPP_DEFMRU) {
ninoderkinderen 0:8d87bc453349 857 try.mru = cishort;
ninoderkinderen 0:8d87bc453349 858 }
ninoderkinderen 0:8d87bc453349 859 );
ninoderkinderen 0:8d87bc453349 860 }
ninoderkinderen 0:8d87bc453349 861
ninoderkinderen 0:8d87bc453349 862 /*
ninoderkinderen 0:8d87bc453349 863 * Add any characters they want to our (receive-side) asyncmap.
ninoderkinderen 0:8d87bc453349 864 */
ninoderkinderen 0:8d87bc453349 865 if (go->neg_asyncmap && go->asyncmap != 0xFFFFFFFFl) {
ninoderkinderen 0:8d87bc453349 866 NAKCILONG(CI_ASYNCMAP, neg_asyncmap,
ninoderkinderen 0:8d87bc453349 867 try.asyncmap = go->asyncmap | cilong;
ninoderkinderen 0:8d87bc453349 868 );
ninoderkinderen 0:8d87bc453349 869 }
ninoderkinderen 0:8d87bc453349 870
ninoderkinderen 0:8d87bc453349 871 /*
ninoderkinderen 0:8d87bc453349 872 * If they've nak'd our authentication-protocol, check whether
ninoderkinderen 0:8d87bc453349 873 * they are proposing a different protocol, or a different
ninoderkinderen 0:8d87bc453349 874 * hash algorithm for CHAP.
ninoderkinderen 0:8d87bc453349 875 */
ninoderkinderen 0:8d87bc453349 876 if ((go->neg_chap || go->neg_upap)
ninoderkinderen 0:8d87bc453349 877 && len >= CILEN_SHORT
ninoderkinderen 0:8d87bc453349 878 && p[0] == CI_AUTHTYPE && p[1] >= CILEN_SHORT && p[1] <= len) {
ninoderkinderen 0:8d87bc453349 879 cilen = p[1];
ninoderkinderen 0:8d87bc453349 880 len -= cilen;
ninoderkinderen 0:8d87bc453349 881 no.neg_chap = go->neg_chap;
ninoderkinderen 0:8d87bc453349 882 no.neg_upap = go->neg_upap;
ninoderkinderen 0:8d87bc453349 883 INCPTR(2, p);
ninoderkinderen 0:8d87bc453349 884 GETSHORT(cishort, p);
ninoderkinderen 0:8d87bc453349 885 if (cishort == PPP_PAP && cilen == CILEN_SHORT) {
ninoderkinderen 0:8d87bc453349 886 /*
ninoderkinderen 0:8d87bc453349 887 * If we were asking for CHAP, they obviously don't want to do it.
ninoderkinderen 0:8d87bc453349 888 * If we weren't asking for CHAP, then we were asking for PAP,
ninoderkinderen 0:8d87bc453349 889 * in which case this Nak is bad.
ninoderkinderen 0:8d87bc453349 890 */
ninoderkinderen 0:8d87bc453349 891 if (!go->neg_chap) {
ninoderkinderen 0:8d87bc453349 892 goto bad;
ninoderkinderen 0:8d87bc453349 893 }
ninoderkinderen 0:8d87bc453349 894 try.neg_chap = 0;
ninoderkinderen 0:8d87bc453349 895
ninoderkinderen 0:8d87bc453349 896 } else if (cishort == PPP_CHAP && cilen == CILEN_CHAP) {
ninoderkinderen 0:8d87bc453349 897 GETCHAR(cichar, p);
ninoderkinderen 0:8d87bc453349 898 if (go->neg_chap) {
ninoderkinderen 0:8d87bc453349 899 /*
ninoderkinderen 0:8d87bc453349 900 * We were asking for CHAP/MD5; they must want a different
ninoderkinderen 0:8d87bc453349 901 * algorithm. If they can't do MD5, we'll have to stop
ninoderkinderen 0:8d87bc453349 902 * asking for CHAP.
ninoderkinderen 0:8d87bc453349 903 */
ninoderkinderen 0:8d87bc453349 904 if (cichar != go->chap_mdtype) {
ninoderkinderen 0:8d87bc453349 905 try.neg_chap = 0;
ninoderkinderen 0:8d87bc453349 906 }
ninoderkinderen 0:8d87bc453349 907 } else {
ninoderkinderen 0:8d87bc453349 908 /*
ninoderkinderen 0:8d87bc453349 909 * Stop asking for PAP if we were asking for it.
ninoderkinderen 0:8d87bc453349 910 */
ninoderkinderen 0:8d87bc453349 911 try.neg_upap = 0;
ninoderkinderen 0:8d87bc453349 912 }
ninoderkinderen 0:8d87bc453349 913
ninoderkinderen 0:8d87bc453349 914 } else {
ninoderkinderen 0:8d87bc453349 915 /*
ninoderkinderen 0:8d87bc453349 916 * We don't recognize what they're suggesting.
ninoderkinderen 0:8d87bc453349 917 * Stop asking for what we were asking for.
ninoderkinderen 0:8d87bc453349 918 */
ninoderkinderen 0:8d87bc453349 919 if (go->neg_chap) {
ninoderkinderen 0:8d87bc453349 920 try.neg_chap = 0;
ninoderkinderen 0:8d87bc453349 921 } else {
ninoderkinderen 0:8d87bc453349 922 try.neg_upap = 0;
ninoderkinderen 0:8d87bc453349 923 }
ninoderkinderen 0:8d87bc453349 924 p += cilen - CILEN_SHORT;
ninoderkinderen 0:8d87bc453349 925 }
ninoderkinderen 0:8d87bc453349 926 }
ninoderkinderen 0:8d87bc453349 927
ninoderkinderen 0:8d87bc453349 928 /*
ninoderkinderen 0:8d87bc453349 929 * If they can't cope with our link quality protocol, we'll have
ninoderkinderen 0:8d87bc453349 930 * to stop asking for LQR. We haven't got any other protocol.
ninoderkinderen 0:8d87bc453349 931 * If they Nak the reporting period, take their value XXX ?
ninoderkinderen 0:8d87bc453349 932 */
ninoderkinderen 0:8d87bc453349 933 NAKCILQR(CI_QUALITY, neg_lqr,
ninoderkinderen 0:8d87bc453349 934 if (cishort != PPP_LQR) {
ninoderkinderen 0:8d87bc453349 935 try.neg_lqr = 0;
ninoderkinderen 0:8d87bc453349 936 } else {
ninoderkinderen 0:8d87bc453349 937 try.lqr_period = cilong;
ninoderkinderen 0:8d87bc453349 938 }
ninoderkinderen 0:8d87bc453349 939 );
ninoderkinderen 0:8d87bc453349 940
ninoderkinderen 0:8d87bc453349 941 /*
ninoderkinderen 0:8d87bc453349 942 * Only implementing CBCP...not the rest of the callback options
ninoderkinderen 0:8d87bc453349 943 */
ninoderkinderen 0:8d87bc453349 944 NAKCICHAR(CI_CALLBACK, neg_cbcp,
ninoderkinderen 0:8d87bc453349 945 try.neg_cbcp = 0;
ninoderkinderen 0:8d87bc453349 946 );
ninoderkinderen 0:8d87bc453349 947
ninoderkinderen 0:8d87bc453349 948 /*
ninoderkinderen 0:8d87bc453349 949 * Check for a looped-back line.
ninoderkinderen 0:8d87bc453349 950 */
ninoderkinderen 0:8d87bc453349 951 NAKCILONG(CI_MAGICNUMBER, neg_magicnumber,
ninoderkinderen 0:8d87bc453349 952 try.magicnumber = magic();
ninoderkinderen 0:8d87bc453349 953 looped_back = 1;
ninoderkinderen 0:8d87bc453349 954 );
ninoderkinderen 0:8d87bc453349 955
ninoderkinderen 0:8d87bc453349 956 /*
ninoderkinderen 0:8d87bc453349 957 * Peer shouldn't send Nak for protocol compression or
ninoderkinderen 0:8d87bc453349 958 * address/control compression requests; they should send
ninoderkinderen 0:8d87bc453349 959 * a Reject instead. If they send a Nak, treat it as a Reject.
ninoderkinderen 0:8d87bc453349 960 */
ninoderkinderen 0:8d87bc453349 961 NAKCIVOID(CI_PCOMPRESSION, neg_pcompression,
ninoderkinderen 0:8d87bc453349 962 try.neg_pcompression = 0;
ninoderkinderen 0:8d87bc453349 963 );
ninoderkinderen 0:8d87bc453349 964 NAKCIVOID(CI_ACCOMPRESSION, neg_accompression,
ninoderkinderen 0:8d87bc453349 965 try.neg_accompression = 0;
ninoderkinderen 0:8d87bc453349 966 );
ninoderkinderen 0:8d87bc453349 967
ninoderkinderen 0:8d87bc453349 968 /*
ninoderkinderen 0:8d87bc453349 969 * There may be remaining CIs, if the peer is requesting negotiation
ninoderkinderen 0:8d87bc453349 970 * on an option that we didn't include in our request packet.
ninoderkinderen 0:8d87bc453349 971 * If we see an option that we requested, or one we've already seen
ninoderkinderen 0:8d87bc453349 972 * in this packet, then this packet is bad.
ninoderkinderen 0:8d87bc453349 973 * If we wanted to respond by starting to negotiate on the requested
ninoderkinderen 0:8d87bc453349 974 * option(s), we could, but we don't, because except for the
ninoderkinderen 0:8d87bc453349 975 * authentication type and quality protocol, if we are not negotiating
ninoderkinderen 0:8d87bc453349 976 * an option, it is because we were told not to.
ninoderkinderen 0:8d87bc453349 977 * For the authentication type, the Nak from the peer means
ninoderkinderen 0:8d87bc453349 978 * `let me authenticate myself with you' which is a bit pointless.
ninoderkinderen 0:8d87bc453349 979 * For the quality protocol, the Nak means `ask me to send you quality
ninoderkinderen 0:8d87bc453349 980 * reports', but if we didn't ask for them, we don't want them.
ninoderkinderen 0:8d87bc453349 981 * An option we don't recognize represents the peer asking to
ninoderkinderen 0:8d87bc453349 982 * negotiate some option we don't support, so ignore it.
ninoderkinderen 0:8d87bc453349 983 */
ninoderkinderen 0:8d87bc453349 984 while (len > CILEN_VOID) {
ninoderkinderen 0:8d87bc453349 985 GETCHAR(citype, p);
ninoderkinderen 0:8d87bc453349 986 GETCHAR(cilen, p);
ninoderkinderen 0:8d87bc453349 987 if (cilen < CILEN_VOID || (len -= cilen) < 0) {
ninoderkinderen 0:8d87bc453349 988 goto bad;
ninoderkinderen 0:8d87bc453349 989 }
ninoderkinderen 0:8d87bc453349 990 next = p + cilen - 2;
ninoderkinderen 0:8d87bc453349 991
ninoderkinderen 0:8d87bc453349 992 switch (citype) {
ninoderkinderen 0:8d87bc453349 993 case CI_MRU:
ninoderkinderen 0:8d87bc453349 994 if ((go->neg_mru && go->mru != PPP_DEFMRU)
ninoderkinderen 0:8d87bc453349 995 || no.neg_mru || cilen != CILEN_SHORT) {
ninoderkinderen 0:8d87bc453349 996 goto bad;
ninoderkinderen 0:8d87bc453349 997 }
ninoderkinderen 0:8d87bc453349 998 GETSHORT(cishort, p);
ninoderkinderen 0:8d87bc453349 999 if (cishort < PPP_DEFMRU) {
ninoderkinderen 0:8d87bc453349 1000 try.mru = cishort;
ninoderkinderen 0:8d87bc453349 1001 }
ninoderkinderen 0:8d87bc453349 1002 break;
ninoderkinderen 0:8d87bc453349 1003 case CI_ASYNCMAP:
ninoderkinderen 0:8d87bc453349 1004 if ((go->neg_asyncmap && go->asyncmap != 0xFFFFFFFFl)
ninoderkinderen 0:8d87bc453349 1005 || no.neg_asyncmap || cilen != CILEN_LONG) {
ninoderkinderen 0:8d87bc453349 1006 goto bad;
ninoderkinderen 0:8d87bc453349 1007 }
ninoderkinderen 0:8d87bc453349 1008 break;
ninoderkinderen 0:8d87bc453349 1009 case CI_AUTHTYPE:
ninoderkinderen 0:8d87bc453349 1010 if (go->neg_chap || no.neg_chap || go->neg_upap || no.neg_upap) {
ninoderkinderen 0:8d87bc453349 1011 goto bad;
ninoderkinderen 0:8d87bc453349 1012 }
ninoderkinderen 0:8d87bc453349 1013 break;
ninoderkinderen 0:8d87bc453349 1014 case CI_MAGICNUMBER:
ninoderkinderen 0:8d87bc453349 1015 if (go->neg_magicnumber || no.neg_magicnumber ||
ninoderkinderen 0:8d87bc453349 1016 cilen != CILEN_LONG) {
ninoderkinderen 0:8d87bc453349 1017 goto bad;
ninoderkinderen 0:8d87bc453349 1018 }
ninoderkinderen 0:8d87bc453349 1019 break;
ninoderkinderen 0:8d87bc453349 1020 case CI_PCOMPRESSION:
ninoderkinderen 0:8d87bc453349 1021 if (go->neg_pcompression || no.neg_pcompression
ninoderkinderen 0:8d87bc453349 1022 || cilen != CILEN_VOID) {
ninoderkinderen 0:8d87bc453349 1023 goto bad;
ninoderkinderen 0:8d87bc453349 1024 }
ninoderkinderen 0:8d87bc453349 1025 break;
ninoderkinderen 0:8d87bc453349 1026 case CI_ACCOMPRESSION:
ninoderkinderen 0:8d87bc453349 1027 if (go->neg_accompression || no.neg_accompression
ninoderkinderen 0:8d87bc453349 1028 || cilen != CILEN_VOID) {
ninoderkinderen 0:8d87bc453349 1029 goto bad;
ninoderkinderen 0:8d87bc453349 1030 }
ninoderkinderen 0:8d87bc453349 1031 break;
ninoderkinderen 0:8d87bc453349 1032 case CI_QUALITY:
ninoderkinderen 0:8d87bc453349 1033 if (go->neg_lqr || no.neg_lqr || cilen != CILEN_LQR) {
ninoderkinderen 0:8d87bc453349 1034 goto bad;
ninoderkinderen 0:8d87bc453349 1035 }
ninoderkinderen 0:8d87bc453349 1036 break;
ninoderkinderen 0:8d87bc453349 1037 }
ninoderkinderen 0:8d87bc453349 1038 p = next;
ninoderkinderen 0:8d87bc453349 1039 }
ninoderkinderen 0:8d87bc453349 1040
ninoderkinderen 0:8d87bc453349 1041 /* If there is still anything left, this packet is bad. */
ninoderkinderen 0:8d87bc453349 1042 if (len != 0) {
ninoderkinderen 0:8d87bc453349 1043 goto bad;
ninoderkinderen 0:8d87bc453349 1044 }
ninoderkinderen 0:8d87bc453349 1045
ninoderkinderen 0:8d87bc453349 1046 /*
ninoderkinderen 0:8d87bc453349 1047 * OK, the Nak is good. Now we can update state.
ninoderkinderen 0:8d87bc453349 1048 */
ninoderkinderen 0:8d87bc453349 1049 if (f->state != LS_OPENED) {
ninoderkinderen 0:8d87bc453349 1050 if (looped_back) {
ninoderkinderen 0:8d87bc453349 1051 if (++try.numloops >= lcp_loopbackfail) {
ninoderkinderen 0:8d87bc453349 1052 LCPDEBUG(LOG_NOTICE, ("Serial line is looped back.\n"));
ninoderkinderen 0:8d87bc453349 1053 lcp_close(f->unit, "Loopback detected");
ninoderkinderen 0:8d87bc453349 1054 }
ninoderkinderen 0:8d87bc453349 1055 } else {
ninoderkinderen 0:8d87bc453349 1056 try.numloops = 0;
ninoderkinderen 0:8d87bc453349 1057 }
ninoderkinderen 0:8d87bc453349 1058 *go = try;
ninoderkinderen 0:8d87bc453349 1059 }
ninoderkinderen 0:8d87bc453349 1060
ninoderkinderen 0:8d87bc453349 1061 return 1;
ninoderkinderen 0:8d87bc453349 1062
ninoderkinderen 0:8d87bc453349 1063 bad:
ninoderkinderen 0:8d87bc453349 1064 LCPDEBUG(LOG_WARNING, ("lcp_nakci: received bad Nak!\n"));
ninoderkinderen 0:8d87bc453349 1065 return 0;
ninoderkinderen 0:8d87bc453349 1066 }
ninoderkinderen 0:8d87bc453349 1067
ninoderkinderen 0:8d87bc453349 1068
ninoderkinderen 0:8d87bc453349 1069 /*
ninoderkinderen 0:8d87bc453349 1070 * lcp_rejci - Peer has Rejected some of our CIs.
ninoderkinderen 0:8d87bc453349 1071 * This should not modify any state if the Reject is bad
ninoderkinderen 0:8d87bc453349 1072 * or if LCP is in the LS_OPENED state.
ninoderkinderen 0:8d87bc453349 1073 *
ninoderkinderen 0:8d87bc453349 1074 * Returns:
ninoderkinderen 0:8d87bc453349 1075 * 0 - Reject was bad.
ninoderkinderen 0:8d87bc453349 1076 * 1 - Reject was good.
ninoderkinderen 0:8d87bc453349 1077 */
ninoderkinderen 0:8d87bc453349 1078 static int
ninoderkinderen 0:8d87bc453349 1079 lcp_rejci(fsm *f, u_char *p, int len)
ninoderkinderen 0:8d87bc453349 1080 {
ninoderkinderen 0:8d87bc453349 1081 lcp_options *go = &lcp_gotoptions[f->unit];
ninoderkinderen 0:8d87bc453349 1082 u_char cichar;
ninoderkinderen 0:8d87bc453349 1083 u_short cishort;
ninoderkinderen 0:8d87bc453349 1084 u32_t cilong;
ninoderkinderen 0:8d87bc453349 1085 lcp_options try; /* options to request next time */
ninoderkinderen 0:8d87bc453349 1086
ninoderkinderen 0:8d87bc453349 1087 try = *go;
ninoderkinderen 0:8d87bc453349 1088
ninoderkinderen 0:8d87bc453349 1089 /*
ninoderkinderen 0:8d87bc453349 1090 * Any Rejected CIs must be in exactly the same order that we sent.
ninoderkinderen 0:8d87bc453349 1091 * Check packet length and CI length at each step.
ninoderkinderen 0:8d87bc453349 1092 * If we find any deviations, then this packet is bad.
ninoderkinderen 0:8d87bc453349 1093 */
ninoderkinderen 0:8d87bc453349 1094 #define REJCIVOID(opt, neg) \
ninoderkinderen 0:8d87bc453349 1095 if (go->neg && \
ninoderkinderen 0:8d87bc453349 1096 len >= CILEN_VOID && \
ninoderkinderen 0:8d87bc453349 1097 p[1] == CILEN_VOID && \
ninoderkinderen 0:8d87bc453349 1098 p[0] == opt) { \
ninoderkinderen 0:8d87bc453349 1099 len -= CILEN_VOID; \
ninoderkinderen 0:8d87bc453349 1100 INCPTR(CILEN_VOID, p); \
ninoderkinderen 0:8d87bc453349 1101 try.neg = 0; \
ninoderkinderen 0:8d87bc453349 1102 LCPDEBUG(LOG_INFO, ("lcp_rejci: void opt %d rejected\n", opt)); \
ninoderkinderen 0:8d87bc453349 1103 }
ninoderkinderen 0:8d87bc453349 1104 #define REJCISHORT(opt, neg, val) \
ninoderkinderen 0:8d87bc453349 1105 if (go->neg && \
ninoderkinderen 0:8d87bc453349 1106 len >= CILEN_SHORT && \
ninoderkinderen 0:8d87bc453349 1107 p[1] == CILEN_SHORT && \
ninoderkinderen 0:8d87bc453349 1108 p[0] == opt) { \
ninoderkinderen 0:8d87bc453349 1109 len -= CILEN_SHORT; \
ninoderkinderen 0:8d87bc453349 1110 INCPTR(2, p); \
ninoderkinderen 0:8d87bc453349 1111 GETSHORT(cishort, p); \
ninoderkinderen 0:8d87bc453349 1112 /* Check rejected value. */ \
ninoderkinderen 0:8d87bc453349 1113 if (cishort != val) { \
ninoderkinderen 0:8d87bc453349 1114 goto bad; \
ninoderkinderen 0:8d87bc453349 1115 } \
ninoderkinderen 0:8d87bc453349 1116 try.neg = 0; \
ninoderkinderen 0:8d87bc453349 1117 LCPDEBUG(LOG_INFO, ("lcp_rejci: short opt %d rejected\n", opt)); \
ninoderkinderen 0:8d87bc453349 1118 }
ninoderkinderen 0:8d87bc453349 1119 #define REJCICHAP(opt, neg, val, digest) \
ninoderkinderen 0:8d87bc453349 1120 if (go->neg && \
ninoderkinderen 0:8d87bc453349 1121 len >= CILEN_CHAP && \
ninoderkinderen 0:8d87bc453349 1122 p[1] == CILEN_CHAP && \
ninoderkinderen 0:8d87bc453349 1123 p[0] == opt) { \
ninoderkinderen 0:8d87bc453349 1124 len -= CILEN_CHAP; \
ninoderkinderen 0:8d87bc453349 1125 INCPTR(2, p); \
ninoderkinderen 0:8d87bc453349 1126 GETSHORT(cishort, p); \
ninoderkinderen 0:8d87bc453349 1127 GETCHAR(cichar, p); \
ninoderkinderen 0:8d87bc453349 1128 /* Check rejected value. */ \
ninoderkinderen 0:8d87bc453349 1129 if (cishort != val || cichar != digest) { \
ninoderkinderen 0:8d87bc453349 1130 goto bad; \
ninoderkinderen 0:8d87bc453349 1131 } \
ninoderkinderen 0:8d87bc453349 1132 try.neg = 0; \
ninoderkinderen 0:8d87bc453349 1133 try.neg_upap = 0; \
ninoderkinderen 0:8d87bc453349 1134 LCPDEBUG(LOG_INFO, ("lcp_rejci: chap opt %d rejected\n", opt)); \
ninoderkinderen 0:8d87bc453349 1135 }
ninoderkinderen 0:8d87bc453349 1136 #define REJCILONG(opt, neg, val) \
ninoderkinderen 0:8d87bc453349 1137 if (go->neg && \
ninoderkinderen 0:8d87bc453349 1138 len >= CILEN_LONG && \
ninoderkinderen 0:8d87bc453349 1139 p[1] == CILEN_LONG && \
ninoderkinderen 0:8d87bc453349 1140 p[0] == opt) { \
ninoderkinderen 0:8d87bc453349 1141 len -= CILEN_LONG; \
ninoderkinderen 0:8d87bc453349 1142 INCPTR(2, p); \
ninoderkinderen 0:8d87bc453349 1143 GETLONG(cilong, p); \
ninoderkinderen 0:8d87bc453349 1144 /* Check rejected value. */ \
ninoderkinderen 0:8d87bc453349 1145 if (cilong != val) { \
ninoderkinderen 0:8d87bc453349 1146 goto bad; \
ninoderkinderen 0:8d87bc453349 1147 } \
ninoderkinderen 0:8d87bc453349 1148 try.neg = 0; \
ninoderkinderen 0:8d87bc453349 1149 LCPDEBUG(LOG_INFO, ("lcp_rejci: long opt %d rejected\n", opt)); \
ninoderkinderen 0:8d87bc453349 1150 }
ninoderkinderen 0:8d87bc453349 1151 #define REJCILQR(opt, neg, val) \
ninoderkinderen 0:8d87bc453349 1152 if (go->neg && \
ninoderkinderen 0:8d87bc453349 1153 len >= CILEN_LQR && \
ninoderkinderen 0:8d87bc453349 1154 p[1] == CILEN_LQR && \
ninoderkinderen 0:8d87bc453349 1155 p[0] == opt) { \
ninoderkinderen 0:8d87bc453349 1156 len -= CILEN_LQR; \
ninoderkinderen 0:8d87bc453349 1157 INCPTR(2, p); \
ninoderkinderen 0:8d87bc453349 1158 GETSHORT(cishort, p); \
ninoderkinderen 0:8d87bc453349 1159 GETLONG(cilong, p); \
ninoderkinderen 0:8d87bc453349 1160 /* Check rejected value. */ \
ninoderkinderen 0:8d87bc453349 1161 if (cishort != PPP_LQR || cilong != val) { \
ninoderkinderen 0:8d87bc453349 1162 goto bad; \
ninoderkinderen 0:8d87bc453349 1163 } \
ninoderkinderen 0:8d87bc453349 1164 try.neg = 0; \
ninoderkinderen 0:8d87bc453349 1165 LCPDEBUG(LOG_INFO, ("lcp_rejci: LQR opt %d rejected\n", opt)); \
ninoderkinderen 0:8d87bc453349 1166 }
ninoderkinderen 0:8d87bc453349 1167 #define REJCICBCP(opt, neg, val) \
ninoderkinderen 0:8d87bc453349 1168 if (go->neg && \
ninoderkinderen 0:8d87bc453349 1169 len >= CILEN_CBCP && \
ninoderkinderen 0:8d87bc453349 1170 p[1] == CILEN_CBCP && \
ninoderkinderen 0:8d87bc453349 1171 p[0] == opt) { \
ninoderkinderen 0:8d87bc453349 1172 len -= CILEN_CBCP; \
ninoderkinderen 0:8d87bc453349 1173 INCPTR(2, p); \
ninoderkinderen 0:8d87bc453349 1174 GETCHAR(cichar, p); \
ninoderkinderen 0:8d87bc453349 1175 /* Check rejected value. */ \
ninoderkinderen 0:8d87bc453349 1176 if (cichar != val) { \
ninoderkinderen 0:8d87bc453349 1177 goto bad; \
ninoderkinderen 0:8d87bc453349 1178 } \
ninoderkinderen 0:8d87bc453349 1179 try.neg = 0; \
ninoderkinderen 0:8d87bc453349 1180 LCPDEBUG(LOG_INFO, ("lcp_rejci: Callback opt %d rejected\n", opt)); \
ninoderkinderen 0:8d87bc453349 1181 }
ninoderkinderen 0:8d87bc453349 1182
ninoderkinderen 0:8d87bc453349 1183 REJCISHORT(CI_MRU, neg_mru, go->mru);
ninoderkinderen 0:8d87bc453349 1184 REJCILONG(CI_ASYNCMAP, neg_asyncmap, go->asyncmap);
ninoderkinderen 0:8d87bc453349 1185 REJCICHAP(CI_AUTHTYPE, neg_chap, PPP_CHAP, go->chap_mdtype);
ninoderkinderen 0:8d87bc453349 1186 if (!go->neg_chap) {
ninoderkinderen 0:8d87bc453349 1187 REJCISHORT(CI_AUTHTYPE, neg_upap, PPP_PAP);
ninoderkinderen 0:8d87bc453349 1188 }
ninoderkinderen 0:8d87bc453349 1189 REJCILQR(CI_QUALITY, neg_lqr, go->lqr_period);
ninoderkinderen 0:8d87bc453349 1190 REJCICBCP(CI_CALLBACK, neg_cbcp, CBCP_OPT);
ninoderkinderen 0:8d87bc453349 1191 REJCILONG(CI_MAGICNUMBER, neg_magicnumber, go->magicnumber);
ninoderkinderen 0:8d87bc453349 1192 REJCIVOID(CI_PCOMPRESSION, neg_pcompression);
ninoderkinderen 0:8d87bc453349 1193 REJCIVOID(CI_ACCOMPRESSION, neg_accompression);
ninoderkinderen 0:8d87bc453349 1194
ninoderkinderen 0:8d87bc453349 1195 /*
ninoderkinderen 0:8d87bc453349 1196 * If there are any remaining CIs, then this packet is bad.
ninoderkinderen 0:8d87bc453349 1197 */
ninoderkinderen 0:8d87bc453349 1198 if (len != 0) {
ninoderkinderen 0:8d87bc453349 1199 goto bad;
ninoderkinderen 0:8d87bc453349 1200 }
ninoderkinderen 0:8d87bc453349 1201 /*
ninoderkinderen 0:8d87bc453349 1202 * Now we can update state.
ninoderkinderen 0:8d87bc453349 1203 */
ninoderkinderen 0:8d87bc453349 1204 if (f->state != LS_OPENED) {
ninoderkinderen 0:8d87bc453349 1205 *go = try;
ninoderkinderen 0:8d87bc453349 1206 }
ninoderkinderen 0:8d87bc453349 1207 return 1;
ninoderkinderen 0:8d87bc453349 1208
ninoderkinderen 0:8d87bc453349 1209 bad:
ninoderkinderen 0:8d87bc453349 1210 LCPDEBUG(LOG_WARNING, ("lcp_rejci: received bad Reject!\n"));
ninoderkinderen 0:8d87bc453349 1211 return 0;
ninoderkinderen 0:8d87bc453349 1212 }
ninoderkinderen 0:8d87bc453349 1213
ninoderkinderen 0:8d87bc453349 1214
ninoderkinderen 0:8d87bc453349 1215 /*
ninoderkinderen 0:8d87bc453349 1216 * lcp_reqci - Check the peer's requested CIs and send appropriate response.
ninoderkinderen 0:8d87bc453349 1217 *
ninoderkinderen 0:8d87bc453349 1218 * Returns: CONFACK, CONFNAK or CONFREJ and input packet modified
ninoderkinderen 0:8d87bc453349 1219 * appropriately. If reject_if_disagree is non-zero, doesn't return
ninoderkinderen 0:8d87bc453349 1220 * CONFNAK; returns CONFREJ if it can't return CONFACK.
ninoderkinderen 0:8d87bc453349 1221 */
ninoderkinderen 0:8d87bc453349 1222 static int
ninoderkinderen 0:8d87bc453349 1223 lcp_reqci(fsm *f,
ninoderkinderen 0:8d87bc453349 1224 u_char *inp, /* Requested CIs */
ninoderkinderen 0:8d87bc453349 1225 int *lenp, /* Length of requested CIs */
ninoderkinderen 0:8d87bc453349 1226 int reject_if_disagree)
ninoderkinderen 0:8d87bc453349 1227 {
ninoderkinderen 0:8d87bc453349 1228 lcp_options *go = &lcp_gotoptions[f->unit];
ninoderkinderen 0:8d87bc453349 1229 lcp_options *ho = &lcp_hisoptions[f->unit];
ninoderkinderen 0:8d87bc453349 1230 lcp_options *ao = &lcp_allowoptions[f->unit];
ninoderkinderen 0:8d87bc453349 1231 u_char *cip, *next; /* Pointer to current and next CIs */
ninoderkinderen 0:8d87bc453349 1232 int cilen, citype; /* Parsed len, type */
ninoderkinderen 0:8d87bc453349 1233 u_char cichar; /* Parsed char value */
ninoderkinderen 0:8d87bc453349 1234 u_short cishort; /* Parsed short value */
ninoderkinderen 0:8d87bc453349 1235 u32_t cilong; /* Parse long value */
ninoderkinderen 0:8d87bc453349 1236 int rc = CONFACK; /* Final packet return code */
ninoderkinderen 0:8d87bc453349 1237 int orc; /* Individual option return code */
ninoderkinderen 0:8d87bc453349 1238 u_char *p; /* Pointer to next char to parse */
ninoderkinderen 0:8d87bc453349 1239 u_char *rejp; /* Pointer to next char in reject frame */
ninoderkinderen 0:8d87bc453349 1240 u_char *nakp; /* Pointer to next char in Nak frame */
ninoderkinderen 0:8d87bc453349 1241 int l = *lenp; /* Length left */
ninoderkinderen 0:8d87bc453349 1242 #if TRACELCP > 0
ninoderkinderen 0:8d87bc453349 1243 char traceBuf[80];
ninoderkinderen 0:8d87bc453349 1244 size_t traceNdx = 0;
ninoderkinderen 0:8d87bc453349 1245 #endif
ninoderkinderen 0:8d87bc453349 1246
ninoderkinderen 0:8d87bc453349 1247 /*
ninoderkinderen 0:8d87bc453349 1248 * Reset all his options.
ninoderkinderen 0:8d87bc453349 1249 */
ninoderkinderen 0:8d87bc453349 1250 BZERO(ho, sizeof(*ho));
ninoderkinderen 0:8d87bc453349 1251
ninoderkinderen 0:8d87bc453349 1252 /*
ninoderkinderen 0:8d87bc453349 1253 * Process all his options.
ninoderkinderen 0:8d87bc453349 1254 */
ninoderkinderen 0:8d87bc453349 1255 next = inp;
ninoderkinderen 0:8d87bc453349 1256 nakp = nak_buffer;
ninoderkinderen 0:8d87bc453349 1257 rejp = inp;
ninoderkinderen 0:8d87bc453349 1258 while (l) {
ninoderkinderen 0:8d87bc453349 1259 orc = CONFACK; /* Assume success */
ninoderkinderen 0:8d87bc453349 1260 cip = p = next; /* Remember begining of CI */
ninoderkinderen 0:8d87bc453349 1261 if (l < 2 || /* Not enough data for CI header or */
ninoderkinderen 0:8d87bc453349 1262 p[1] < 2 || /* CI length too small or */
ninoderkinderen 0:8d87bc453349 1263 p[1] > l) { /* CI length too big? */
ninoderkinderen 0:8d87bc453349 1264 LCPDEBUG(LOG_WARNING, ("lcp_reqci: bad CI length!\n"));
ninoderkinderen 0:8d87bc453349 1265 orc = CONFREJ; /* Reject bad CI */
ninoderkinderen 0:8d87bc453349 1266 cilen = l; /* Reject till end of packet */
ninoderkinderen 0:8d87bc453349 1267 l = 0; /* Don't loop again */
ninoderkinderen 0:8d87bc453349 1268 citype = 0;
ninoderkinderen 0:8d87bc453349 1269 goto endswitch;
ninoderkinderen 0:8d87bc453349 1270 }
ninoderkinderen 0:8d87bc453349 1271 GETCHAR(citype, p); /* Parse CI type */
ninoderkinderen 0:8d87bc453349 1272 GETCHAR(cilen, p); /* Parse CI length */
ninoderkinderen 0:8d87bc453349 1273 l -= cilen; /* Adjust remaining length */
ninoderkinderen 0:8d87bc453349 1274 next += cilen; /* Step to next CI */
ninoderkinderen 0:8d87bc453349 1275
ninoderkinderen 0:8d87bc453349 1276 switch (citype) { /* Check CI type */
ninoderkinderen 0:8d87bc453349 1277 case CI_MRU:
ninoderkinderen 0:8d87bc453349 1278 if (!ao->neg_mru) { /* Allow option? */
ninoderkinderen 0:8d87bc453349 1279 LCPDEBUG(LOG_INFO, ("lcp_reqci: Reject MRU - not allowed\n"));
ninoderkinderen 0:8d87bc453349 1280 orc = CONFREJ; /* Reject CI */
ninoderkinderen 0:8d87bc453349 1281 break;
ninoderkinderen 0:8d87bc453349 1282 } else if (cilen != CILEN_SHORT) { /* Check CI length */
ninoderkinderen 0:8d87bc453349 1283 LCPDEBUG(LOG_INFO, ("lcp_reqci: Reject MRU - bad length\n"));
ninoderkinderen 0:8d87bc453349 1284 orc = CONFREJ; /* Reject CI */
ninoderkinderen 0:8d87bc453349 1285 break;
ninoderkinderen 0:8d87bc453349 1286 }
ninoderkinderen 0:8d87bc453349 1287 GETSHORT(cishort, p); /* Parse MRU */
ninoderkinderen 0:8d87bc453349 1288
ninoderkinderen 0:8d87bc453349 1289 /*
ninoderkinderen 0:8d87bc453349 1290 * He must be able to receive at least our minimum.
ninoderkinderen 0:8d87bc453349 1291 * No need to check a maximum. If he sends a large number,
ninoderkinderen 0:8d87bc453349 1292 * we'll just ignore it.
ninoderkinderen 0:8d87bc453349 1293 */
ninoderkinderen 0:8d87bc453349 1294 if (cishort < PPP_MINMRU) {
ninoderkinderen 0:8d87bc453349 1295 LCPDEBUG(LOG_INFO, ("lcp_reqci: Nak - MRU too small\n"));
ninoderkinderen 0:8d87bc453349 1296 orc = CONFNAK; /* Nak CI */
ninoderkinderen 0:8d87bc453349 1297 PUTCHAR(CI_MRU, nakp);
ninoderkinderen 0:8d87bc453349 1298 PUTCHAR(CILEN_SHORT, nakp);
ninoderkinderen 0:8d87bc453349 1299 PUTSHORT(PPP_MINMRU, nakp); /* Give him a hint */
ninoderkinderen 0:8d87bc453349 1300 break;
ninoderkinderen 0:8d87bc453349 1301 }
ninoderkinderen 0:8d87bc453349 1302 ho->neg_mru = 1; /* Remember he sent MRU */
ninoderkinderen 0:8d87bc453349 1303 ho->mru = cishort; /* And remember value */
ninoderkinderen 0:8d87bc453349 1304 #if TRACELCP > 0
ninoderkinderen 0:8d87bc453349 1305 snprintf(&traceBuf[traceNdx], sizeof(traceBuf), " MRU %d", cishort);
ninoderkinderen 0:8d87bc453349 1306 traceNdx = strlen(traceBuf);
ninoderkinderen 0:8d87bc453349 1307 #endif
ninoderkinderen 0:8d87bc453349 1308 break;
ninoderkinderen 0:8d87bc453349 1309
ninoderkinderen 0:8d87bc453349 1310 case CI_ASYNCMAP:
ninoderkinderen 0:8d87bc453349 1311 if (!ao->neg_asyncmap) {
ninoderkinderen 0:8d87bc453349 1312 LCPDEBUG(LOG_INFO, ("lcp_reqci: Reject ASYNCMAP not allowed\n"));
ninoderkinderen 0:8d87bc453349 1313 orc = CONFREJ;
ninoderkinderen 0:8d87bc453349 1314 break;
ninoderkinderen 0:8d87bc453349 1315 } else if (cilen != CILEN_LONG) {
ninoderkinderen 0:8d87bc453349 1316 LCPDEBUG(LOG_INFO, ("lcp_reqci: Reject ASYNCMAP bad length\n"));
ninoderkinderen 0:8d87bc453349 1317 orc = CONFREJ;
ninoderkinderen 0:8d87bc453349 1318 break;
ninoderkinderen 0:8d87bc453349 1319 }
ninoderkinderen 0:8d87bc453349 1320 GETLONG(cilong, p);
ninoderkinderen 0:8d87bc453349 1321
ninoderkinderen 0:8d87bc453349 1322 /*
ninoderkinderen 0:8d87bc453349 1323 * Asyncmap must have set at least the bits
ninoderkinderen 0:8d87bc453349 1324 * which are set in lcp_allowoptions[unit].asyncmap.
ninoderkinderen 0:8d87bc453349 1325 */
ninoderkinderen 0:8d87bc453349 1326 if ((ao->asyncmap & ~cilong) != 0) {
ninoderkinderen 0:8d87bc453349 1327 LCPDEBUG(LOG_INFO, ("lcp_reqci: Nak ASYNCMAP %lX missing %lX\n",
ninoderkinderen 0:8d87bc453349 1328 cilong, ao->asyncmap));
ninoderkinderen 0:8d87bc453349 1329 orc = CONFNAK;
ninoderkinderen 0:8d87bc453349 1330 PUTCHAR(CI_ASYNCMAP, nakp);
ninoderkinderen 0:8d87bc453349 1331 PUTCHAR(CILEN_LONG, nakp);
ninoderkinderen 0:8d87bc453349 1332 PUTLONG(ao->asyncmap | cilong, nakp);
ninoderkinderen 0:8d87bc453349 1333 break;
ninoderkinderen 0:8d87bc453349 1334 }
ninoderkinderen 0:8d87bc453349 1335 ho->neg_asyncmap = 1;
ninoderkinderen 0:8d87bc453349 1336 ho->asyncmap = cilong;
ninoderkinderen 0:8d87bc453349 1337 #if TRACELCP > 0
ninoderkinderen 0:8d87bc453349 1338 snprintf(&traceBuf[traceNdx], sizeof(traceBuf), " ASYNCMAP=%lX", cilong);
ninoderkinderen 0:8d87bc453349 1339 traceNdx = strlen(traceBuf);
ninoderkinderen 0:8d87bc453349 1340 #endif
ninoderkinderen 0:8d87bc453349 1341 break;
ninoderkinderen 0:8d87bc453349 1342
ninoderkinderen 0:8d87bc453349 1343 case CI_AUTHTYPE:
ninoderkinderen 0:8d87bc453349 1344 if (cilen < CILEN_SHORT) {
ninoderkinderen 0:8d87bc453349 1345 LCPDEBUG(LOG_INFO, ("lcp_reqci: Reject AUTHTYPE missing arg\n"));
ninoderkinderen 0:8d87bc453349 1346 orc = CONFREJ;
ninoderkinderen 0:8d87bc453349 1347 break;
ninoderkinderen 0:8d87bc453349 1348 } else if (!(ao->neg_upap || ao->neg_chap)) {
ninoderkinderen 0:8d87bc453349 1349 /*
ninoderkinderen 0:8d87bc453349 1350 * Reject the option if we're not willing to authenticate.
ninoderkinderen 0:8d87bc453349 1351 */
ninoderkinderen 0:8d87bc453349 1352 LCPDEBUG(LOG_INFO, ("lcp_reqci: Reject AUTHTYPE not allowed\n"));
ninoderkinderen 0:8d87bc453349 1353 orc = CONFREJ;
ninoderkinderen 0:8d87bc453349 1354 break;
ninoderkinderen 0:8d87bc453349 1355 }
ninoderkinderen 0:8d87bc453349 1356 GETSHORT(cishort, p);
ninoderkinderen 0:8d87bc453349 1357
ninoderkinderen 0:8d87bc453349 1358 /*
ninoderkinderen 0:8d87bc453349 1359 * Authtype must be UPAP or CHAP.
ninoderkinderen 0:8d87bc453349 1360 *
ninoderkinderen 0:8d87bc453349 1361 * Note: if both ao->neg_upap and ao->neg_chap are set,
ninoderkinderen 0:8d87bc453349 1362 * and the peer sends a Configure-Request with two
ninoderkinderen 0:8d87bc453349 1363 * authenticate-protocol requests, one for CHAP and one
ninoderkinderen 0:8d87bc453349 1364 * for UPAP, then we will reject the second request.
ninoderkinderen 0:8d87bc453349 1365 * Whether we end up doing CHAP or UPAP depends then on
ninoderkinderen 0:8d87bc453349 1366 * the ordering of the CIs in the peer's Configure-Request.
ninoderkinderen 0:8d87bc453349 1367 */
ninoderkinderen 0:8d87bc453349 1368
ninoderkinderen 0:8d87bc453349 1369 if (cishort == PPP_PAP) {
ninoderkinderen 0:8d87bc453349 1370 if (ho->neg_chap) { /* we've already accepted CHAP */
ninoderkinderen 0:8d87bc453349 1371 LCPDEBUG(LOG_WARNING, ("lcp_reqci: Reject AUTHTYPE PAP already accepted\n"));
ninoderkinderen 0:8d87bc453349 1372 orc = CONFREJ;
ninoderkinderen 0:8d87bc453349 1373 break;
ninoderkinderen 0:8d87bc453349 1374 } else if (cilen != CILEN_SHORT) {
ninoderkinderen 0:8d87bc453349 1375 LCPDEBUG(LOG_WARNING, ("lcp_reqci: Reject AUTHTYPE PAP bad len\n"));
ninoderkinderen 0:8d87bc453349 1376 orc = CONFREJ;
ninoderkinderen 0:8d87bc453349 1377 break;
ninoderkinderen 0:8d87bc453349 1378 }
ninoderkinderen 0:8d87bc453349 1379 if (!ao->neg_upap) { /* we don't want to do PAP */
ninoderkinderen 0:8d87bc453349 1380 LCPDEBUG(LOG_WARNING, ("lcp_reqci: Nak AUTHTYPE PAP not allowed\n"));
ninoderkinderen 0:8d87bc453349 1381 orc = CONFNAK; /* NAK it and suggest CHAP */
ninoderkinderen 0:8d87bc453349 1382 PUTCHAR(CI_AUTHTYPE, nakp);
ninoderkinderen 0:8d87bc453349 1383 PUTCHAR(CILEN_CHAP, nakp);
ninoderkinderen 0:8d87bc453349 1384 PUTSHORT(PPP_CHAP, nakp);
ninoderkinderen 0:8d87bc453349 1385 PUTCHAR(ao->chap_mdtype, nakp);
ninoderkinderen 0:8d87bc453349 1386 break;
ninoderkinderen 0:8d87bc453349 1387 }
ninoderkinderen 0:8d87bc453349 1388 ho->neg_upap = 1;
ninoderkinderen 0:8d87bc453349 1389 #if TRACELCP > 0
ninoderkinderen 0:8d87bc453349 1390 snprintf(&traceBuf[traceNdx], sizeof(traceBuf), " PAP (%X)", cishort);
ninoderkinderen 0:8d87bc453349 1391 traceNdx = strlen(traceBuf);
ninoderkinderen 0:8d87bc453349 1392 #endif
ninoderkinderen 0:8d87bc453349 1393 break;
ninoderkinderen 0:8d87bc453349 1394 }
ninoderkinderen 0:8d87bc453349 1395 if (cishort == PPP_CHAP) {
ninoderkinderen 0:8d87bc453349 1396 if (ho->neg_upap) { /* we've already accepted PAP */
ninoderkinderen 0:8d87bc453349 1397 LCPDEBUG(LOG_WARNING, ("lcp_reqci: Reject AUTHTYPE CHAP accepted PAP\n"));
ninoderkinderen 0:8d87bc453349 1398 orc = CONFREJ;
ninoderkinderen 0:8d87bc453349 1399 break;
ninoderkinderen 0:8d87bc453349 1400 } else if (cilen != CILEN_CHAP) {
ninoderkinderen 0:8d87bc453349 1401 LCPDEBUG(LOG_WARNING, ("lcp_reqci: Reject AUTHTYPE CHAP bad len\n"));
ninoderkinderen 0:8d87bc453349 1402 orc = CONFREJ;
ninoderkinderen 0:8d87bc453349 1403 break;
ninoderkinderen 0:8d87bc453349 1404 }
ninoderkinderen 0:8d87bc453349 1405 if (!ao->neg_chap) { /* we don't want to do CHAP */
ninoderkinderen 0:8d87bc453349 1406 LCPDEBUG(LOG_WARNING, ("lcp_reqci: Nak AUTHTYPE CHAP not allowed\n"));
ninoderkinderen 0:8d87bc453349 1407 orc = CONFNAK; /* NAK it and suggest PAP */
ninoderkinderen 0:8d87bc453349 1408 PUTCHAR(CI_AUTHTYPE, nakp);
ninoderkinderen 0:8d87bc453349 1409 PUTCHAR(CILEN_SHORT, nakp);
ninoderkinderen 0:8d87bc453349 1410 PUTSHORT(PPP_PAP, nakp);
ninoderkinderen 0:8d87bc453349 1411 break;
ninoderkinderen 0:8d87bc453349 1412 }
ninoderkinderen 0:8d87bc453349 1413 GETCHAR(cichar, p); /* get digest type*/
ninoderkinderen 0:8d87bc453349 1414 if (cichar != CHAP_DIGEST_MD5
ninoderkinderen 0:8d87bc453349 1415 #if MSCHAP_SUPPORT
ninoderkinderen 0:8d87bc453349 1416 && cichar != CHAP_MICROSOFT
ninoderkinderen 0:8d87bc453349 1417 #endif
ninoderkinderen 0:8d87bc453349 1418 ) {
ninoderkinderen 0:8d87bc453349 1419 LCPDEBUG(LOG_WARNING, ("lcp_reqci: Nak AUTHTYPE CHAP digest=%d\n", (int)cichar));
ninoderkinderen 0:8d87bc453349 1420 orc = CONFNAK;
ninoderkinderen 0:8d87bc453349 1421 PUTCHAR(CI_AUTHTYPE, nakp);
ninoderkinderen 0:8d87bc453349 1422 PUTCHAR(CILEN_CHAP, nakp);
ninoderkinderen 0:8d87bc453349 1423 PUTSHORT(PPP_CHAP, nakp);
ninoderkinderen 0:8d87bc453349 1424 PUTCHAR(ao->chap_mdtype, nakp);
ninoderkinderen 0:8d87bc453349 1425 break;
ninoderkinderen 0:8d87bc453349 1426 }
ninoderkinderen 0:8d87bc453349 1427 #if TRACELCP > 0
ninoderkinderen 0:8d87bc453349 1428 snprintf(&traceBuf[traceNdx], sizeof(traceBuf), " CHAP %X,%d", cishort, (int)cichar);
ninoderkinderen 0:8d87bc453349 1429 traceNdx = strlen(traceBuf);
ninoderkinderen 0:8d87bc453349 1430 #endif
ninoderkinderen 0:8d87bc453349 1431 ho->chap_mdtype = cichar; /* save md type */
ninoderkinderen 0:8d87bc453349 1432 ho->neg_chap = 1;
ninoderkinderen 0:8d87bc453349 1433 break;
ninoderkinderen 0:8d87bc453349 1434 }
ninoderkinderen 0:8d87bc453349 1435
ninoderkinderen 0:8d87bc453349 1436 /*
ninoderkinderen 0:8d87bc453349 1437 * We don't recognize the protocol they're asking for.
ninoderkinderen 0:8d87bc453349 1438 * Nak it with something we're willing to do.
ninoderkinderen 0:8d87bc453349 1439 * (At this point we know ao->neg_upap || ao->neg_chap.)
ninoderkinderen 0:8d87bc453349 1440 */
ninoderkinderen 0:8d87bc453349 1441 orc = CONFNAK;
ninoderkinderen 0:8d87bc453349 1442 PUTCHAR(CI_AUTHTYPE, nakp);
ninoderkinderen 0:8d87bc453349 1443 if (ao->neg_chap) {
ninoderkinderen 0:8d87bc453349 1444 LCPDEBUG(LOG_WARNING, ("lcp_reqci: Nak AUTHTYPE %d req CHAP\n", cishort));
ninoderkinderen 0:8d87bc453349 1445 PUTCHAR(CILEN_CHAP, nakp);
ninoderkinderen 0:8d87bc453349 1446 PUTSHORT(PPP_CHAP, nakp);
ninoderkinderen 0:8d87bc453349 1447 PUTCHAR(ao->chap_mdtype, nakp);
ninoderkinderen 0:8d87bc453349 1448 } else {
ninoderkinderen 0:8d87bc453349 1449 LCPDEBUG(LOG_WARNING, ("lcp_reqci: Nak AUTHTYPE %d req PAP\n", cishort));
ninoderkinderen 0:8d87bc453349 1450 PUTCHAR(CILEN_SHORT, nakp);
ninoderkinderen 0:8d87bc453349 1451 PUTSHORT(PPP_PAP, nakp);
ninoderkinderen 0:8d87bc453349 1452 }
ninoderkinderen 0:8d87bc453349 1453 break;
ninoderkinderen 0:8d87bc453349 1454
ninoderkinderen 0:8d87bc453349 1455 case CI_QUALITY:
ninoderkinderen 0:8d87bc453349 1456 GETSHORT(cishort, p);
ninoderkinderen 0:8d87bc453349 1457 GETLONG(cilong, p);
ninoderkinderen 0:8d87bc453349 1458 #if TRACELCP > 0
ninoderkinderen 0:8d87bc453349 1459 snprintf(&traceBuf[traceNdx], sizeof(traceBuf), " QUALITY (%x %x)", cishort, (unsigned int) cilong);
ninoderkinderen 0:8d87bc453349 1460 traceNdx = strlen(traceBuf);
ninoderkinderen 0:8d87bc453349 1461 #endif
ninoderkinderen 0:8d87bc453349 1462
ninoderkinderen 0:8d87bc453349 1463 if (!ao->neg_lqr ||
ninoderkinderen 0:8d87bc453349 1464 cilen != CILEN_LQR) {
ninoderkinderen 0:8d87bc453349 1465 orc = CONFREJ;
ninoderkinderen 0:8d87bc453349 1466 break;
ninoderkinderen 0:8d87bc453349 1467 }
ninoderkinderen 0:8d87bc453349 1468
ninoderkinderen 0:8d87bc453349 1469 /*
ninoderkinderen 0:8d87bc453349 1470 * Check the protocol and the reporting period.
ninoderkinderen 0:8d87bc453349 1471 * XXX When should we Nak this, and what with?
ninoderkinderen 0:8d87bc453349 1472 */
ninoderkinderen 0:8d87bc453349 1473 if (cishort != PPP_LQR) {
ninoderkinderen 0:8d87bc453349 1474 orc = CONFNAK;
ninoderkinderen 0:8d87bc453349 1475 PUTCHAR(CI_QUALITY, nakp);
ninoderkinderen 0:8d87bc453349 1476 PUTCHAR(CILEN_LQR, nakp);
ninoderkinderen 0:8d87bc453349 1477 PUTSHORT(PPP_LQR, nakp);
ninoderkinderen 0:8d87bc453349 1478 PUTLONG(ao->lqr_period, nakp);
ninoderkinderen 0:8d87bc453349 1479 break;
ninoderkinderen 0:8d87bc453349 1480 }
ninoderkinderen 0:8d87bc453349 1481 break;
ninoderkinderen 0:8d87bc453349 1482
ninoderkinderen 0:8d87bc453349 1483 case CI_MAGICNUMBER:
ninoderkinderen 0:8d87bc453349 1484 if (!(ao->neg_magicnumber || go->neg_magicnumber) ||
ninoderkinderen 0:8d87bc453349 1485 cilen != CILEN_LONG) {
ninoderkinderen 0:8d87bc453349 1486 orc = CONFREJ;
ninoderkinderen 0:8d87bc453349 1487 break;
ninoderkinderen 0:8d87bc453349 1488 }
ninoderkinderen 0:8d87bc453349 1489 GETLONG(cilong, p);
ninoderkinderen 0:8d87bc453349 1490 #if TRACELCP > 0
ninoderkinderen 0:8d87bc453349 1491 snprintf(&traceBuf[traceNdx], sizeof(traceBuf), " MAGICNUMBER (%lX)", cilong);
ninoderkinderen 0:8d87bc453349 1492 traceNdx = strlen(traceBuf);
ninoderkinderen 0:8d87bc453349 1493 #endif
ninoderkinderen 0:8d87bc453349 1494
ninoderkinderen 0:8d87bc453349 1495 /*
ninoderkinderen 0:8d87bc453349 1496 * He must have a different magic number.
ninoderkinderen 0:8d87bc453349 1497 */
ninoderkinderen 0:8d87bc453349 1498 if (go->neg_magicnumber &&
ninoderkinderen 0:8d87bc453349 1499 cilong == go->magicnumber) {
ninoderkinderen 0:8d87bc453349 1500 cilong = magic(); /* Don't put magic() inside macro! */
ninoderkinderen 0:8d87bc453349 1501 orc = CONFNAK;
ninoderkinderen 0:8d87bc453349 1502 PUTCHAR(CI_MAGICNUMBER, nakp);
ninoderkinderen 0:8d87bc453349 1503 PUTCHAR(CILEN_LONG, nakp);
ninoderkinderen 0:8d87bc453349 1504 PUTLONG(cilong, nakp);
ninoderkinderen 0:8d87bc453349 1505 break;
ninoderkinderen 0:8d87bc453349 1506 }
ninoderkinderen 0:8d87bc453349 1507 ho->neg_magicnumber = 1;
ninoderkinderen 0:8d87bc453349 1508 ho->magicnumber = cilong;
ninoderkinderen 0:8d87bc453349 1509 break;
ninoderkinderen 0:8d87bc453349 1510
ninoderkinderen 0:8d87bc453349 1511
ninoderkinderen 0:8d87bc453349 1512 case CI_PCOMPRESSION:
ninoderkinderen 0:8d87bc453349 1513 #if TRACELCP > 0
ninoderkinderen 0:8d87bc453349 1514 snprintf(&traceBuf[traceNdx], sizeof(traceBuf), " PCOMPRESSION");
ninoderkinderen 0:8d87bc453349 1515 traceNdx = strlen(traceBuf);
ninoderkinderen 0:8d87bc453349 1516 #endif
ninoderkinderen 0:8d87bc453349 1517 if (!ao->neg_pcompression ||
ninoderkinderen 0:8d87bc453349 1518 cilen != CILEN_VOID) {
ninoderkinderen 0:8d87bc453349 1519 orc = CONFREJ;
ninoderkinderen 0:8d87bc453349 1520 break;
ninoderkinderen 0:8d87bc453349 1521 }
ninoderkinderen 0:8d87bc453349 1522 ho->neg_pcompression = 1;
ninoderkinderen 0:8d87bc453349 1523 break;
ninoderkinderen 0:8d87bc453349 1524
ninoderkinderen 0:8d87bc453349 1525 case CI_ACCOMPRESSION:
ninoderkinderen 0:8d87bc453349 1526 #if TRACELCP > 0
ninoderkinderen 0:8d87bc453349 1527 snprintf(&traceBuf[traceNdx], sizeof(traceBuf), " ACCOMPRESSION");
ninoderkinderen 0:8d87bc453349 1528 traceNdx = strlen(traceBuf);
ninoderkinderen 0:8d87bc453349 1529 #endif
ninoderkinderen 0:8d87bc453349 1530 if (!ao->neg_accompression ||
ninoderkinderen 0:8d87bc453349 1531 cilen != CILEN_VOID) {
ninoderkinderen 0:8d87bc453349 1532 orc = CONFREJ;
ninoderkinderen 0:8d87bc453349 1533 break;
ninoderkinderen 0:8d87bc453349 1534 }
ninoderkinderen 0:8d87bc453349 1535 ho->neg_accompression = 1;
ninoderkinderen 0:8d87bc453349 1536 break;
ninoderkinderen 0:8d87bc453349 1537
ninoderkinderen 0:8d87bc453349 1538 case CI_MRRU:
ninoderkinderen 0:8d87bc453349 1539 #if TRACELCP > 0
ninoderkinderen 0:8d87bc453349 1540 snprintf(&traceBuf[traceNdx], sizeof(traceBuf), " CI_MRRU");
ninoderkinderen 0:8d87bc453349 1541 traceNdx = strlen(traceBuf);
ninoderkinderen 0:8d87bc453349 1542 #endif
ninoderkinderen 0:8d87bc453349 1543 orc = CONFREJ;
ninoderkinderen 0:8d87bc453349 1544 break;
ninoderkinderen 0:8d87bc453349 1545
ninoderkinderen 0:8d87bc453349 1546 case CI_SSNHF:
ninoderkinderen 0:8d87bc453349 1547 #if TRACELCP > 0
ninoderkinderen 0:8d87bc453349 1548 snprintf(&traceBuf[traceNdx], sizeof(traceBuf), " CI_SSNHF");
ninoderkinderen 0:8d87bc453349 1549 traceNdx = strlen(traceBuf);
ninoderkinderen 0:8d87bc453349 1550 #endif
ninoderkinderen 0:8d87bc453349 1551 orc = CONFREJ;
ninoderkinderen 0:8d87bc453349 1552 break;
ninoderkinderen 0:8d87bc453349 1553
ninoderkinderen 0:8d87bc453349 1554 case CI_EPDISC:
ninoderkinderen 0:8d87bc453349 1555 #if TRACELCP > 0
ninoderkinderen 0:8d87bc453349 1556 snprintf(&traceBuf[traceNdx], sizeof(traceBuf), " CI_EPDISC");
ninoderkinderen 0:8d87bc453349 1557 traceNdx = strlen(traceBuf);
ninoderkinderen 0:8d87bc453349 1558 #endif
ninoderkinderen 0:8d87bc453349 1559 orc = CONFREJ;
ninoderkinderen 0:8d87bc453349 1560 break;
ninoderkinderen 0:8d87bc453349 1561
ninoderkinderen 0:8d87bc453349 1562 default:
ninoderkinderen 0:8d87bc453349 1563 #if TRACELCP
ninoderkinderen 0:8d87bc453349 1564 snprintf(&traceBuf[traceNdx], sizeof(traceBuf), " unknown %d", citype);
ninoderkinderen 0:8d87bc453349 1565 traceNdx = strlen(traceBuf);
ninoderkinderen 0:8d87bc453349 1566 #endif
ninoderkinderen 0:8d87bc453349 1567 orc = CONFREJ;
ninoderkinderen 0:8d87bc453349 1568 break;
ninoderkinderen 0:8d87bc453349 1569 }
ninoderkinderen 0:8d87bc453349 1570
ninoderkinderen 0:8d87bc453349 1571 endswitch:
ninoderkinderen 0:8d87bc453349 1572 #if TRACELCP
ninoderkinderen 0:8d87bc453349 1573 if (traceNdx >= 80 - 32) {
ninoderkinderen 0:8d87bc453349 1574 LCPDEBUG(LOG_INFO, ("lcp_reqci: rcvd%s\n", traceBuf));
ninoderkinderen 0:8d87bc453349 1575 traceNdx = 0;
ninoderkinderen 0:8d87bc453349 1576 }
ninoderkinderen 0:8d87bc453349 1577 #endif
ninoderkinderen 0:8d87bc453349 1578 if (orc == CONFACK && /* Good CI */
ninoderkinderen 0:8d87bc453349 1579 rc != CONFACK) { /* but prior CI wasnt? */
ninoderkinderen 0:8d87bc453349 1580 continue; /* Don't send this one */
ninoderkinderen 0:8d87bc453349 1581 }
ninoderkinderen 0:8d87bc453349 1582
ninoderkinderen 0:8d87bc453349 1583 if (orc == CONFNAK) { /* Nak this CI? */
ninoderkinderen 0:8d87bc453349 1584 if (reject_if_disagree /* Getting fed up with sending NAKs? */
ninoderkinderen 0:8d87bc453349 1585 && citype != CI_MAGICNUMBER) {
ninoderkinderen 0:8d87bc453349 1586 orc = CONFREJ; /* Get tough if so */
ninoderkinderen 0:8d87bc453349 1587 } else {
ninoderkinderen 0:8d87bc453349 1588 if (rc == CONFREJ) { /* Rejecting prior CI? */
ninoderkinderen 0:8d87bc453349 1589 continue; /* Don't send this one */
ninoderkinderen 0:8d87bc453349 1590 }
ninoderkinderen 0:8d87bc453349 1591 rc = CONFNAK;
ninoderkinderen 0:8d87bc453349 1592 }
ninoderkinderen 0:8d87bc453349 1593 }
ninoderkinderen 0:8d87bc453349 1594 if (orc == CONFREJ) { /* Reject this CI */
ninoderkinderen 0:8d87bc453349 1595 rc = CONFREJ;
ninoderkinderen 0:8d87bc453349 1596 if (cip != rejp) { /* Need to move rejected CI? */
ninoderkinderen 0:8d87bc453349 1597 BCOPY(cip, rejp, cilen); /* Move it */
ninoderkinderen 0:8d87bc453349 1598 }
ninoderkinderen 0:8d87bc453349 1599 INCPTR(cilen, rejp); /* Update output pointer */
ninoderkinderen 0:8d87bc453349 1600 }
ninoderkinderen 0:8d87bc453349 1601 }
ninoderkinderen 0:8d87bc453349 1602
ninoderkinderen 0:8d87bc453349 1603 /*
ninoderkinderen 0:8d87bc453349 1604 * If we wanted to send additional NAKs (for unsent CIs), the
ninoderkinderen 0:8d87bc453349 1605 * code would go here. The extra NAKs would go at *nakp.
ninoderkinderen 0:8d87bc453349 1606 * At present there are no cases where we want to ask the
ninoderkinderen 0:8d87bc453349 1607 * peer to negotiate an option.
ninoderkinderen 0:8d87bc453349 1608 */
ninoderkinderen 0:8d87bc453349 1609
ninoderkinderen 0:8d87bc453349 1610 switch (rc) {
ninoderkinderen 0:8d87bc453349 1611 case CONFACK:
ninoderkinderen 0:8d87bc453349 1612 *lenp = (int)(next - inp);
ninoderkinderen 0:8d87bc453349 1613 break;
ninoderkinderen 0:8d87bc453349 1614 case CONFNAK:
ninoderkinderen 0:8d87bc453349 1615 /*
ninoderkinderen 0:8d87bc453349 1616 * Copy the Nak'd options from the nak_buffer to the caller's buffer.
ninoderkinderen 0:8d87bc453349 1617 */
ninoderkinderen 0:8d87bc453349 1618 *lenp = (int)(nakp - nak_buffer);
ninoderkinderen 0:8d87bc453349 1619 BCOPY(nak_buffer, inp, *lenp);
ninoderkinderen 0:8d87bc453349 1620 break;
ninoderkinderen 0:8d87bc453349 1621 case CONFREJ:
ninoderkinderen 0:8d87bc453349 1622 *lenp = (int)(rejp - inp);
ninoderkinderen 0:8d87bc453349 1623 break;
ninoderkinderen 0:8d87bc453349 1624 }
ninoderkinderen 0:8d87bc453349 1625
ninoderkinderen 0:8d87bc453349 1626 #if TRACELCP > 0
ninoderkinderen 0:8d87bc453349 1627 if (traceNdx > 0) {
ninoderkinderen 0:8d87bc453349 1628 LCPDEBUG(LOG_INFO, ("lcp_reqci: %s\n", traceBuf));
ninoderkinderen 0:8d87bc453349 1629 }
ninoderkinderen 0:8d87bc453349 1630 #endif
ninoderkinderen 0:8d87bc453349 1631 LCPDEBUG(LOG_INFO, ("lcp_reqci: returning CONF%s.\n", CODENAME(rc)));
ninoderkinderen 0:8d87bc453349 1632 return (rc); /* Return final code */
ninoderkinderen 0:8d87bc453349 1633 }
ninoderkinderen 0:8d87bc453349 1634
ninoderkinderen 0:8d87bc453349 1635
ninoderkinderen 0:8d87bc453349 1636 /*
ninoderkinderen 0:8d87bc453349 1637 * lcp_up - LCP has come UP.
ninoderkinderen 0:8d87bc453349 1638 */
ninoderkinderen 0:8d87bc453349 1639 static void
ninoderkinderen 0:8d87bc453349 1640 lcp_up(fsm *f)
ninoderkinderen 0:8d87bc453349 1641 {
ninoderkinderen 0:8d87bc453349 1642 lcp_options *wo = &lcp_wantoptions[f->unit];
ninoderkinderen 0:8d87bc453349 1643 lcp_options *ho = &lcp_hisoptions[f->unit];
ninoderkinderen 0:8d87bc453349 1644 lcp_options *go = &lcp_gotoptions[f->unit];
ninoderkinderen 0:8d87bc453349 1645 lcp_options *ao = &lcp_allowoptions[f->unit];
ninoderkinderen 0:8d87bc453349 1646
ninoderkinderen 0:8d87bc453349 1647 if (!go->neg_magicnumber) {
ninoderkinderen 0:8d87bc453349 1648 go->magicnumber = 0;
ninoderkinderen 0:8d87bc453349 1649 }
ninoderkinderen 0:8d87bc453349 1650 if (!ho->neg_magicnumber) {
ninoderkinderen 0:8d87bc453349 1651 ho->magicnumber = 0;
ninoderkinderen 0:8d87bc453349 1652 }
ninoderkinderen 0:8d87bc453349 1653
ninoderkinderen 0:8d87bc453349 1654 /*
ninoderkinderen 0:8d87bc453349 1655 * Set our MTU to the smaller of the MTU we wanted and
ninoderkinderen 0:8d87bc453349 1656 * the MRU our peer wanted. If we negotiated an MRU,
ninoderkinderen 0:8d87bc453349 1657 * set our MRU to the larger of value we wanted and
ninoderkinderen 0:8d87bc453349 1658 * the value we got in the negotiation.
ninoderkinderen 0:8d87bc453349 1659 */
ninoderkinderen 0:8d87bc453349 1660 ppp_send_config(f->unit, LWIP_MIN(ao->mru, (ho->neg_mru? ho->mru: PPP_MRU)),
ninoderkinderen 0:8d87bc453349 1661 (ho->neg_asyncmap? ho->asyncmap: 0xffffffffl),
ninoderkinderen 0:8d87bc453349 1662 ho->neg_pcompression, ho->neg_accompression);
ninoderkinderen 0:8d87bc453349 1663 /*
ninoderkinderen 0:8d87bc453349 1664 * If the asyncmap hasn't been negotiated, we really should
ninoderkinderen 0:8d87bc453349 1665 * set the receive asyncmap to ffffffff, but we set it to 0
ninoderkinderen 0:8d87bc453349 1666 * for backwards contemptibility.
ninoderkinderen 0:8d87bc453349 1667 */
ninoderkinderen 0:8d87bc453349 1668 ppp_recv_config(f->unit, (go->neg_mru? LWIP_MAX(wo->mru, go->mru): PPP_MRU),
ninoderkinderen 0:8d87bc453349 1669 (go->neg_asyncmap? go->asyncmap: 0x00000000),
ninoderkinderen 0:8d87bc453349 1670 go->neg_pcompression, go->neg_accompression);
ninoderkinderen 0:8d87bc453349 1671
ninoderkinderen 0:8d87bc453349 1672 if (ho->neg_mru) {
ninoderkinderen 0:8d87bc453349 1673 peer_mru[f->unit] = ho->mru;
ninoderkinderen 0:8d87bc453349 1674 }
ninoderkinderen 0:8d87bc453349 1675
ninoderkinderen 0:8d87bc453349 1676 lcp_echo_lowerup(f->unit); /* Enable echo messages */
ninoderkinderen 0:8d87bc453349 1677
ninoderkinderen 0:8d87bc453349 1678 link_established(f->unit); /* The link is up; authenticate now */
ninoderkinderen 0:8d87bc453349 1679 }
ninoderkinderen 0:8d87bc453349 1680
ninoderkinderen 0:8d87bc453349 1681
ninoderkinderen 0:8d87bc453349 1682 /*
ninoderkinderen 0:8d87bc453349 1683 * lcp_down - LCP has gone DOWN.
ninoderkinderen 0:8d87bc453349 1684 *
ninoderkinderen 0:8d87bc453349 1685 * Alert other protocols.
ninoderkinderen 0:8d87bc453349 1686 */
ninoderkinderen 0:8d87bc453349 1687 static void
ninoderkinderen 0:8d87bc453349 1688 lcp_down(fsm *f)
ninoderkinderen 0:8d87bc453349 1689 {
ninoderkinderen 0:8d87bc453349 1690 lcp_options *go = &lcp_gotoptions[f->unit];
ninoderkinderen 0:8d87bc453349 1691
ninoderkinderen 0:8d87bc453349 1692 lcp_echo_lowerdown(f->unit);
ninoderkinderen 0:8d87bc453349 1693
ninoderkinderen 0:8d87bc453349 1694 link_down(f->unit);
ninoderkinderen 0:8d87bc453349 1695
ninoderkinderen 0:8d87bc453349 1696 ppp_send_config(f->unit, PPP_MRU, 0xffffffffl, 0, 0);
ninoderkinderen 0:8d87bc453349 1697 ppp_recv_config(f->unit, PPP_MRU,
ninoderkinderen 0:8d87bc453349 1698 (go->neg_asyncmap? go->asyncmap: 0x00000000),
ninoderkinderen 0:8d87bc453349 1699 go->neg_pcompression, go->neg_accompression);
ninoderkinderen 0:8d87bc453349 1700 peer_mru[f->unit] = PPP_MRU;
ninoderkinderen 0:8d87bc453349 1701 }
ninoderkinderen 0:8d87bc453349 1702
ninoderkinderen 0:8d87bc453349 1703
ninoderkinderen 0:8d87bc453349 1704 /*
ninoderkinderen 0:8d87bc453349 1705 * lcp_starting - LCP needs the lower layer up.
ninoderkinderen 0:8d87bc453349 1706 */
ninoderkinderen 0:8d87bc453349 1707 static void
ninoderkinderen 0:8d87bc453349 1708 lcp_starting(fsm *f)
ninoderkinderen 0:8d87bc453349 1709 {
ninoderkinderen 0:8d87bc453349 1710 link_required(f->unit); /* lwip: currently does nothing */
ninoderkinderen 0:8d87bc453349 1711 }
ninoderkinderen 0:8d87bc453349 1712
ninoderkinderen 0:8d87bc453349 1713
ninoderkinderen 0:8d87bc453349 1714 /*
ninoderkinderen 0:8d87bc453349 1715 * lcp_finished - LCP has finished with the lower layer.
ninoderkinderen 0:8d87bc453349 1716 */
ninoderkinderen 0:8d87bc453349 1717 static void
ninoderkinderen 0:8d87bc453349 1718 lcp_finished(fsm *f)
ninoderkinderen 0:8d87bc453349 1719 {
ninoderkinderen 0:8d87bc453349 1720 link_terminated(f->unit); /* we are finished with the link */
ninoderkinderen 0:8d87bc453349 1721 }
ninoderkinderen 0:8d87bc453349 1722
ninoderkinderen 0:8d87bc453349 1723
ninoderkinderen 0:8d87bc453349 1724 #if PPP_ADDITIONAL_CALLBACKS
ninoderkinderen 0:8d87bc453349 1725 /*
ninoderkinderen 0:8d87bc453349 1726 * print_string - print a readable representation of a string using
ninoderkinderen 0:8d87bc453349 1727 * printer.
ninoderkinderen 0:8d87bc453349 1728 */
ninoderkinderen 0:8d87bc453349 1729 static void
ninoderkinderen 0:8d87bc453349 1730 print_string( char *p, int len, void (*printer) (void *, char *, ...), void *arg)
ninoderkinderen 0:8d87bc453349 1731 {
ninoderkinderen 0:8d87bc453349 1732 int c;
ninoderkinderen 0:8d87bc453349 1733
ninoderkinderen 0:8d87bc453349 1734 printer(arg, "\"");
ninoderkinderen 0:8d87bc453349 1735 for (; len > 0; --len) {
ninoderkinderen 0:8d87bc453349 1736 c = *p++;
ninoderkinderen 0:8d87bc453349 1737 if (' ' <= c && c <= '~') {
ninoderkinderen 0:8d87bc453349 1738 if (c == '\\' || c == '"') {
ninoderkinderen 0:8d87bc453349 1739 printer(arg, "\\");
ninoderkinderen 0:8d87bc453349 1740 }
ninoderkinderen 0:8d87bc453349 1741 printer(arg, "%c", c);
ninoderkinderen 0:8d87bc453349 1742 } else {
ninoderkinderen 0:8d87bc453349 1743 switch (c) {
ninoderkinderen 0:8d87bc453349 1744 case '\n':
ninoderkinderen 0:8d87bc453349 1745 printer(arg, "\\n");
ninoderkinderen 0:8d87bc453349 1746 break;
ninoderkinderen 0:8d87bc453349 1747 case '\r':
ninoderkinderen 0:8d87bc453349 1748 printer(arg, "\\r");
ninoderkinderen 0:8d87bc453349 1749 break;
ninoderkinderen 0:8d87bc453349 1750 case '\t':
ninoderkinderen 0:8d87bc453349 1751 printer(arg, "\\t");
ninoderkinderen 0:8d87bc453349 1752 break;
ninoderkinderen 0:8d87bc453349 1753 default:
ninoderkinderen 0:8d87bc453349 1754 printer(arg, "\\%.3o", c);
ninoderkinderen 0:8d87bc453349 1755 }
ninoderkinderen 0:8d87bc453349 1756 }
ninoderkinderen 0:8d87bc453349 1757 }
ninoderkinderen 0:8d87bc453349 1758 printer(arg, "\"");
ninoderkinderen 0:8d87bc453349 1759 }
ninoderkinderen 0:8d87bc453349 1760
ninoderkinderen 0:8d87bc453349 1761
ninoderkinderen 0:8d87bc453349 1762 /*
ninoderkinderen 0:8d87bc453349 1763 * lcp_printpkt - print the contents of an LCP packet.
ninoderkinderen 0:8d87bc453349 1764 */
ninoderkinderen 0:8d87bc453349 1765 static char *lcp_codenames[] = {
ninoderkinderen 0:8d87bc453349 1766 "ConfReq", "ConfAck", "ConfNak", "ConfRej",
ninoderkinderen 0:8d87bc453349 1767 "TermReq", "TermAck", "CodeRej", "ProtRej",
ninoderkinderen 0:8d87bc453349 1768 "EchoReq", "EchoRep", "DiscReq"
ninoderkinderen 0:8d87bc453349 1769 };
ninoderkinderen 0:8d87bc453349 1770
ninoderkinderen 0:8d87bc453349 1771 static int
ninoderkinderen 0:8d87bc453349 1772 lcp_printpkt( u_char *p, int plen, void (*printer) (void *, char *, ...), void *arg)
ninoderkinderen 0:8d87bc453349 1773 {
ninoderkinderen 0:8d87bc453349 1774 int code, id, len, olen;
ninoderkinderen 0:8d87bc453349 1775 u_char *pstart, *optend;
ninoderkinderen 0:8d87bc453349 1776 u_short cishort;
ninoderkinderen 0:8d87bc453349 1777 u32_t cilong;
ninoderkinderen 0:8d87bc453349 1778
ninoderkinderen 0:8d87bc453349 1779 if (plen < HEADERLEN) {
ninoderkinderen 0:8d87bc453349 1780 return 0;
ninoderkinderen 0:8d87bc453349 1781 }
ninoderkinderen 0:8d87bc453349 1782 pstart = p;
ninoderkinderen 0:8d87bc453349 1783 GETCHAR(code, p);
ninoderkinderen 0:8d87bc453349 1784 GETCHAR(id, p);
ninoderkinderen 0:8d87bc453349 1785 GETSHORT(len, p);
ninoderkinderen 0:8d87bc453349 1786 if (len < HEADERLEN || len > plen) {
ninoderkinderen 0:8d87bc453349 1787 return 0;
ninoderkinderen 0:8d87bc453349 1788 }
ninoderkinderen 0:8d87bc453349 1789
ninoderkinderen 0:8d87bc453349 1790 if (code >= 1 && code <= sizeof(lcp_codenames) / sizeof(char *)) {
ninoderkinderen 0:8d87bc453349 1791 printer(arg, " %s", lcp_codenames[code-1]);
ninoderkinderen 0:8d87bc453349 1792 } else {
ninoderkinderen 0:8d87bc453349 1793 printer(arg, " code=0x%x", code);
ninoderkinderen 0:8d87bc453349 1794 }
ninoderkinderen 0:8d87bc453349 1795 printer(arg, " id=0x%x", id);
ninoderkinderen 0:8d87bc453349 1796 len -= HEADERLEN;
ninoderkinderen 0:8d87bc453349 1797 switch (code) {
ninoderkinderen 0:8d87bc453349 1798 case CONFREQ:
ninoderkinderen 0:8d87bc453349 1799 case CONFACK:
ninoderkinderen 0:8d87bc453349 1800 case CONFNAK:
ninoderkinderen 0:8d87bc453349 1801 case CONFREJ:
ninoderkinderen 0:8d87bc453349 1802 /* print option list */
ninoderkinderen 0:8d87bc453349 1803 while (len >= 2) {
ninoderkinderen 0:8d87bc453349 1804 GETCHAR(code, p);
ninoderkinderen 0:8d87bc453349 1805 GETCHAR(olen, p);
ninoderkinderen 0:8d87bc453349 1806 p -= 2;
ninoderkinderen 0:8d87bc453349 1807 if (olen < 2 || olen > len) {
ninoderkinderen 0:8d87bc453349 1808 break;
ninoderkinderen 0:8d87bc453349 1809 }
ninoderkinderen 0:8d87bc453349 1810 printer(arg, " <");
ninoderkinderen 0:8d87bc453349 1811 len -= olen;
ninoderkinderen 0:8d87bc453349 1812 optend = p + olen;
ninoderkinderen 0:8d87bc453349 1813 switch (code) {
ninoderkinderen 0:8d87bc453349 1814 case CI_MRU:
ninoderkinderen 0:8d87bc453349 1815 if (olen == CILEN_SHORT) {
ninoderkinderen 0:8d87bc453349 1816 p += 2;
ninoderkinderen 0:8d87bc453349 1817 GETSHORT(cishort, p);
ninoderkinderen 0:8d87bc453349 1818 printer(arg, "mru %d", cishort);
ninoderkinderen 0:8d87bc453349 1819 }
ninoderkinderen 0:8d87bc453349 1820 break;
ninoderkinderen 0:8d87bc453349 1821 case CI_ASYNCMAP:
ninoderkinderen 0:8d87bc453349 1822 if (olen == CILEN_LONG) {
ninoderkinderen 0:8d87bc453349 1823 p += 2;
ninoderkinderen 0:8d87bc453349 1824 GETLONG(cilong, p);
ninoderkinderen 0:8d87bc453349 1825 printer(arg, "asyncmap 0x%lx", cilong);
ninoderkinderen 0:8d87bc453349 1826 }
ninoderkinderen 0:8d87bc453349 1827 break;
ninoderkinderen 0:8d87bc453349 1828 case CI_AUTHTYPE:
ninoderkinderen 0:8d87bc453349 1829 if (olen >= CILEN_SHORT) {
ninoderkinderen 0:8d87bc453349 1830 p += 2;
ninoderkinderen 0:8d87bc453349 1831 printer(arg, "auth ");
ninoderkinderen 0:8d87bc453349 1832 GETSHORT(cishort, p);
ninoderkinderen 0:8d87bc453349 1833 switch (cishort) {
ninoderkinderen 0:8d87bc453349 1834 case PPP_PAP:
ninoderkinderen 0:8d87bc453349 1835 printer(arg, "pap");
ninoderkinderen 0:8d87bc453349 1836 break;
ninoderkinderen 0:8d87bc453349 1837 case PPP_CHAP:
ninoderkinderen 0:8d87bc453349 1838 printer(arg, "chap");
ninoderkinderen 0:8d87bc453349 1839 break;
ninoderkinderen 0:8d87bc453349 1840 default:
ninoderkinderen 0:8d87bc453349 1841 printer(arg, "0x%x", cishort);
ninoderkinderen 0:8d87bc453349 1842 }
ninoderkinderen 0:8d87bc453349 1843 }
ninoderkinderen 0:8d87bc453349 1844 break;
ninoderkinderen 0:8d87bc453349 1845 case CI_QUALITY:
ninoderkinderen 0:8d87bc453349 1846 if (olen >= CILEN_SHORT) {
ninoderkinderen 0:8d87bc453349 1847 p += 2;
ninoderkinderen 0:8d87bc453349 1848 printer(arg, "quality ");
ninoderkinderen 0:8d87bc453349 1849 GETSHORT(cishort, p);
ninoderkinderen 0:8d87bc453349 1850 switch (cishort) {
ninoderkinderen 0:8d87bc453349 1851 case PPP_LQR:
ninoderkinderen 0:8d87bc453349 1852 printer(arg, "lqr");
ninoderkinderen 0:8d87bc453349 1853 break;
ninoderkinderen 0:8d87bc453349 1854 default:
ninoderkinderen 0:8d87bc453349 1855 printer(arg, "0x%x", cishort);
ninoderkinderen 0:8d87bc453349 1856 }
ninoderkinderen 0:8d87bc453349 1857 }
ninoderkinderen 0:8d87bc453349 1858 break;
ninoderkinderen 0:8d87bc453349 1859 case CI_CALLBACK:
ninoderkinderen 0:8d87bc453349 1860 if (olen >= CILEN_CHAR) {
ninoderkinderen 0:8d87bc453349 1861 p += 2;
ninoderkinderen 0:8d87bc453349 1862 printer(arg, "callback ");
ninoderkinderen 0:8d87bc453349 1863 GETSHORT(cishort, p);
ninoderkinderen 0:8d87bc453349 1864 switch (cishort) {
ninoderkinderen 0:8d87bc453349 1865 case CBCP_OPT:
ninoderkinderen 0:8d87bc453349 1866 printer(arg, "CBCP");
ninoderkinderen 0:8d87bc453349 1867 break;
ninoderkinderen 0:8d87bc453349 1868 default:
ninoderkinderen 0:8d87bc453349 1869 printer(arg, "0x%x", cishort);
ninoderkinderen 0:8d87bc453349 1870 }
ninoderkinderen 0:8d87bc453349 1871 }
ninoderkinderen 0:8d87bc453349 1872 break;
ninoderkinderen 0:8d87bc453349 1873 case CI_MAGICNUMBER:
ninoderkinderen 0:8d87bc453349 1874 if (olen == CILEN_LONG) {
ninoderkinderen 0:8d87bc453349 1875 p += 2;
ninoderkinderen 0:8d87bc453349 1876 GETLONG(cilong, p);
ninoderkinderen 0:8d87bc453349 1877 printer(arg, "magic 0x%x", cilong);
ninoderkinderen 0:8d87bc453349 1878 }
ninoderkinderen 0:8d87bc453349 1879 break;
ninoderkinderen 0:8d87bc453349 1880 case CI_PCOMPRESSION:
ninoderkinderen 0:8d87bc453349 1881 if (olen == CILEN_VOID) {
ninoderkinderen 0:8d87bc453349 1882 p += 2;
ninoderkinderen 0:8d87bc453349 1883 printer(arg, "pcomp");
ninoderkinderen 0:8d87bc453349 1884 }
ninoderkinderen 0:8d87bc453349 1885 break;
ninoderkinderen 0:8d87bc453349 1886 case CI_ACCOMPRESSION:
ninoderkinderen 0:8d87bc453349 1887 if (olen == CILEN_VOID) {
ninoderkinderen 0:8d87bc453349 1888 p += 2;
ninoderkinderen 0:8d87bc453349 1889 printer(arg, "accomp");
ninoderkinderen 0:8d87bc453349 1890 }
ninoderkinderen 0:8d87bc453349 1891 break;
ninoderkinderen 0:8d87bc453349 1892 }
ninoderkinderen 0:8d87bc453349 1893 while (p < optend) {
ninoderkinderen 0:8d87bc453349 1894 GETCHAR(code, p);
ninoderkinderen 0:8d87bc453349 1895 printer(arg, " %.2x", code);
ninoderkinderen 0:8d87bc453349 1896 }
ninoderkinderen 0:8d87bc453349 1897 printer(arg, ">");
ninoderkinderen 0:8d87bc453349 1898 }
ninoderkinderen 0:8d87bc453349 1899 break;
ninoderkinderen 0:8d87bc453349 1900
ninoderkinderen 0:8d87bc453349 1901 case TERMACK:
ninoderkinderen 0:8d87bc453349 1902 case TERMREQ:
ninoderkinderen 0:8d87bc453349 1903 if (len > 0 && *p >= ' ' && *p < 0x7f) {
ninoderkinderen 0:8d87bc453349 1904 printer(arg, " ");
ninoderkinderen 0:8d87bc453349 1905 print_string((char*)p, len, printer, arg);
ninoderkinderen 0:8d87bc453349 1906 p += len;
ninoderkinderen 0:8d87bc453349 1907 len = 0;
ninoderkinderen 0:8d87bc453349 1908 }
ninoderkinderen 0:8d87bc453349 1909 break;
ninoderkinderen 0:8d87bc453349 1910
ninoderkinderen 0:8d87bc453349 1911 case ECHOREQ:
ninoderkinderen 0:8d87bc453349 1912 case ECHOREP:
ninoderkinderen 0:8d87bc453349 1913 case DISCREQ:
ninoderkinderen 0:8d87bc453349 1914 if (len >= 4) {
ninoderkinderen 0:8d87bc453349 1915 GETLONG(cilong, p);
ninoderkinderen 0:8d87bc453349 1916 printer(arg, " magic=0x%x", cilong);
ninoderkinderen 0:8d87bc453349 1917 p += 4;
ninoderkinderen 0:8d87bc453349 1918 len -= 4;
ninoderkinderen 0:8d87bc453349 1919 }
ninoderkinderen 0:8d87bc453349 1920 break;
ninoderkinderen 0:8d87bc453349 1921 }
ninoderkinderen 0:8d87bc453349 1922
ninoderkinderen 0:8d87bc453349 1923 /* print the rest of the bytes in the packet */
ninoderkinderen 0:8d87bc453349 1924 for (; len > 0; --len) {
ninoderkinderen 0:8d87bc453349 1925 GETCHAR(code, p);
ninoderkinderen 0:8d87bc453349 1926 printer(arg, " %.2x", code);
ninoderkinderen 0:8d87bc453349 1927 }
ninoderkinderen 0:8d87bc453349 1928
ninoderkinderen 0:8d87bc453349 1929 return (int)(p - pstart);
ninoderkinderen 0:8d87bc453349 1930 }
ninoderkinderen 0:8d87bc453349 1931 #endif /* PPP_ADDITIONAL_CALLBACKS */
ninoderkinderen 0:8d87bc453349 1932
ninoderkinderen 0:8d87bc453349 1933 /*
ninoderkinderen 0:8d87bc453349 1934 * Time to shut down the link because there is nothing out there.
ninoderkinderen 0:8d87bc453349 1935 */
ninoderkinderen 0:8d87bc453349 1936 static void
ninoderkinderen 0:8d87bc453349 1937 LcpLinkFailure (fsm *f)
ninoderkinderen 0:8d87bc453349 1938 {
ninoderkinderen 0:8d87bc453349 1939 if (f->state == LS_OPENED) {
ninoderkinderen 0:8d87bc453349 1940 LCPDEBUG(LOG_INFO, ("No response to %d echo-requests\n", lcp_echos_pending));
ninoderkinderen 0:8d87bc453349 1941 LCPDEBUG(LOG_NOTICE, ("Serial link appears to be disconnected.\n"));
ninoderkinderen 0:8d87bc453349 1942 lcp_close(f->unit, "Peer not responding");
ninoderkinderen 0:8d87bc453349 1943 }
ninoderkinderen 0:8d87bc453349 1944 }
ninoderkinderen 0:8d87bc453349 1945
ninoderkinderen 0:8d87bc453349 1946 /*
ninoderkinderen 0:8d87bc453349 1947 * Timer expired for the LCP echo requests from this process.
ninoderkinderen 0:8d87bc453349 1948 */
ninoderkinderen 0:8d87bc453349 1949 static void
ninoderkinderen 0:8d87bc453349 1950 LcpEchoCheck (fsm *f)
ninoderkinderen 0:8d87bc453349 1951 {
ninoderkinderen 0:8d87bc453349 1952 LcpSendEchoRequest (f);
ninoderkinderen 0:8d87bc453349 1953
ninoderkinderen 0:8d87bc453349 1954 /*
ninoderkinderen 0:8d87bc453349 1955 * Start the timer for the next interval.
ninoderkinderen 0:8d87bc453349 1956 */
ninoderkinderen 0:8d87bc453349 1957 LWIP_ASSERT("lcp_echo_timer_running == 0", lcp_echo_timer_running == 0);
ninoderkinderen 0:8d87bc453349 1958
ninoderkinderen 0:8d87bc453349 1959 TIMEOUT (LcpEchoTimeout, f, lcp_echo_interval);
ninoderkinderen 0:8d87bc453349 1960 lcp_echo_timer_running = 1;
ninoderkinderen 0:8d87bc453349 1961 }
ninoderkinderen 0:8d87bc453349 1962
ninoderkinderen 0:8d87bc453349 1963 /*
ninoderkinderen 0:8d87bc453349 1964 * LcpEchoTimeout - Timer expired on the LCP echo
ninoderkinderen 0:8d87bc453349 1965 */
ninoderkinderen 0:8d87bc453349 1966 static void
ninoderkinderen 0:8d87bc453349 1967 LcpEchoTimeout (void *arg)
ninoderkinderen 0:8d87bc453349 1968 {
ninoderkinderen 0:8d87bc453349 1969 if (lcp_echo_timer_running != 0) {
ninoderkinderen 0:8d87bc453349 1970 lcp_echo_timer_running = 0;
ninoderkinderen 0:8d87bc453349 1971 LcpEchoCheck ((fsm *) arg);
ninoderkinderen 0:8d87bc453349 1972 }
ninoderkinderen 0:8d87bc453349 1973 }
ninoderkinderen 0:8d87bc453349 1974
ninoderkinderen 0:8d87bc453349 1975 /*
ninoderkinderen 0:8d87bc453349 1976 * LcpEchoReply - LCP has received a reply to the echo
ninoderkinderen 0:8d87bc453349 1977 */
ninoderkinderen 0:8d87bc453349 1978 static void
ninoderkinderen 0:8d87bc453349 1979 lcp_received_echo_reply (fsm *f, int id, u_char *inp, int len)
ninoderkinderen 0:8d87bc453349 1980 {
ninoderkinderen 0:8d87bc453349 1981 u32_t magic;
ninoderkinderen 0:8d87bc453349 1982
ninoderkinderen 0:8d87bc453349 1983 LWIP_UNUSED_ARG(id);
ninoderkinderen 0:8d87bc453349 1984
ninoderkinderen 0:8d87bc453349 1985 /* Check the magic number - don't count replies from ourselves. */
ninoderkinderen 0:8d87bc453349 1986 if (len < 4) {
ninoderkinderen 0:8d87bc453349 1987 LCPDEBUG(LOG_WARNING, ("lcp: received short Echo-Reply, length %d\n", len));
ninoderkinderen 0:8d87bc453349 1988 return;
ninoderkinderen 0:8d87bc453349 1989 }
ninoderkinderen 0:8d87bc453349 1990 GETLONG(magic, inp);
ninoderkinderen 0:8d87bc453349 1991 if (lcp_gotoptions[f->unit].neg_magicnumber && magic == lcp_gotoptions[f->unit].magicnumber) {
ninoderkinderen 0:8d87bc453349 1992 LCPDEBUG(LOG_WARNING, ("appear to have received our own echo-reply!\n"));
ninoderkinderen 0:8d87bc453349 1993 return;
ninoderkinderen 0:8d87bc453349 1994 }
ninoderkinderen 0:8d87bc453349 1995
ninoderkinderen 0:8d87bc453349 1996 /* Reset the number of outstanding echo frames */
ninoderkinderen 0:8d87bc453349 1997 lcp_echos_pending = 0;
ninoderkinderen 0:8d87bc453349 1998 }
ninoderkinderen 0:8d87bc453349 1999
ninoderkinderen 0:8d87bc453349 2000 /*
ninoderkinderen 0:8d87bc453349 2001 * LcpSendEchoRequest - Send an echo request frame to the peer
ninoderkinderen 0:8d87bc453349 2002 */
ninoderkinderen 0:8d87bc453349 2003 static void
ninoderkinderen 0:8d87bc453349 2004 LcpSendEchoRequest (fsm *f)
ninoderkinderen 0:8d87bc453349 2005 {
ninoderkinderen 0:8d87bc453349 2006 u32_t lcp_magic;
ninoderkinderen 0:8d87bc453349 2007 u_char pkt[4], *pktp;
ninoderkinderen 0:8d87bc453349 2008
ninoderkinderen 0:8d87bc453349 2009 /*
ninoderkinderen 0:8d87bc453349 2010 * Detect the failure of the peer at this point.
ninoderkinderen 0:8d87bc453349 2011 */
ninoderkinderen 0:8d87bc453349 2012 if (lcp_echo_fails != 0) {
ninoderkinderen 0:8d87bc453349 2013 if (lcp_echos_pending >= lcp_echo_fails) {
ninoderkinderen 0:8d87bc453349 2014 LcpLinkFailure(f);
ninoderkinderen 0:8d87bc453349 2015 lcp_echos_pending = 0;
ninoderkinderen 0:8d87bc453349 2016 }
ninoderkinderen 0:8d87bc453349 2017 }
ninoderkinderen 0:8d87bc453349 2018
ninoderkinderen 0:8d87bc453349 2019 /*
ninoderkinderen 0:8d87bc453349 2020 * Make and send the echo request frame.
ninoderkinderen 0:8d87bc453349 2021 */
ninoderkinderen 0:8d87bc453349 2022 if (f->state == LS_OPENED) {
ninoderkinderen 0:8d87bc453349 2023 lcp_magic = lcp_gotoptions[f->unit].magicnumber;
ninoderkinderen 0:8d87bc453349 2024 pktp = pkt;
ninoderkinderen 0:8d87bc453349 2025 PUTLONG(lcp_magic, pktp);
ninoderkinderen 0:8d87bc453349 2026 fsm_sdata(f, ECHOREQ, (u_char)(lcp_echo_number++ & 0xFF), pkt, (int)(pktp - pkt));
ninoderkinderen 0:8d87bc453349 2027 ++lcp_echos_pending;
ninoderkinderen 0:8d87bc453349 2028 }
ninoderkinderen 0:8d87bc453349 2029 }
ninoderkinderen 0:8d87bc453349 2030
ninoderkinderen 0:8d87bc453349 2031 /*
ninoderkinderen 0:8d87bc453349 2032 * lcp_echo_lowerup - Start the timer for the LCP frame
ninoderkinderen 0:8d87bc453349 2033 */
ninoderkinderen 0:8d87bc453349 2034
ninoderkinderen 0:8d87bc453349 2035 static void
ninoderkinderen 0:8d87bc453349 2036 lcp_echo_lowerup (int unit)
ninoderkinderen 0:8d87bc453349 2037 {
ninoderkinderen 0:8d87bc453349 2038 fsm *f = &lcp_fsm[unit];
ninoderkinderen 0:8d87bc453349 2039
ninoderkinderen 0:8d87bc453349 2040 /* Clear the parameters for generating echo frames */
ninoderkinderen 0:8d87bc453349 2041 lcp_echos_pending = 0;
ninoderkinderen 0:8d87bc453349 2042 lcp_echo_number = 0;
ninoderkinderen 0:8d87bc453349 2043 lcp_echo_timer_running = 0;
ninoderkinderen 0:8d87bc453349 2044
ninoderkinderen 0:8d87bc453349 2045 /* If a timeout interval is specified then start the timer */
ninoderkinderen 0:8d87bc453349 2046 if (lcp_echo_interval != 0) {
ninoderkinderen 0:8d87bc453349 2047 LcpEchoCheck (f);
ninoderkinderen 0:8d87bc453349 2048 }
ninoderkinderen 0:8d87bc453349 2049 }
ninoderkinderen 0:8d87bc453349 2050
ninoderkinderen 0:8d87bc453349 2051 /*
ninoderkinderen 0:8d87bc453349 2052 * lcp_echo_lowerdown - Stop the timer for the LCP frame
ninoderkinderen 0:8d87bc453349 2053 */
ninoderkinderen 0:8d87bc453349 2054
ninoderkinderen 0:8d87bc453349 2055 static void
ninoderkinderen 0:8d87bc453349 2056 lcp_echo_lowerdown (int unit)
ninoderkinderen 0:8d87bc453349 2057 {
ninoderkinderen 0:8d87bc453349 2058 fsm *f = &lcp_fsm[unit];
ninoderkinderen 0:8d87bc453349 2059
ninoderkinderen 0:8d87bc453349 2060 if (lcp_echo_timer_running != 0) {
ninoderkinderen 0:8d87bc453349 2061 UNTIMEOUT (LcpEchoTimeout, f);
ninoderkinderen 0:8d87bc453349 2062 lcp_echo_timer_running = 0;
ninoderkinderen 0:8d87bc453349 2063 }
ninoderkinderen 0:8d87bc453349 2064 }
ninoderkinderen 0:8d87bc453349 2065
ninoderkinderen 0:8d87bc453349 2066 #endif /* PPP_SUPPORT */