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Dependencies:   F7_Ethernet WebSocketClient mbed mcp3008

Fork of Nucleo_F746ZG_Ethernet by Dieter Graef

F7_Ethernet/lwip/netif/ppp/pap.c@0:f9b6112278fe, 2016-06-18 (annotated)

Committer:
DieterGraef
Date:
Sat Jun 18 10:49:12 2016 +0000
Revision:
0:f9b6112278fe
Ethernet for the NUCLEO STM32F746 Board Testprogram uses DHCP and NTP to set the clock

Who changed what in which revision?

UserRevisionLine numberNew contents of line
DieterGraef 0:f9b6112278fe 1 /*****************************************************************************
DieterGraef 0:f9b6112278fe 2 * pap.c - Network Password Authentication Protocol program file.
DieterGraef 0:f9b6112278fe 3 *
DieterGraef 0:f9b6112278fe 4 * Copyright (c) 2003 by Marc Boucher, Services Informatiques (MBSI) inc.
DieterGraef 0:f9b6112278fe 5 * portions Copyright (c) 1997 by Global Election Systems Inc.
DieterGraef 0:f9b6112278fe 6 *
DieterGraef 0:f9b6112278fe 7 * The authors hereby grant permission to use, copy, modify, distribute,
DieterGraef 0:f9b6112278fe 8 * and license this software and its documentation for any purpose, provided
DieterGraef 0:f9b6112278fe 9 * that existing copyright notices are retained in all copies and that this
DieterGraef 0:f9b6112278fe 10 * notice and the following disclaimer are included verbatim in any
DieterGraef 0:f9b6112278fe 11 * distributions. No written agreement, license, or royalty fee is required
DieterGraef 0:f9b6112278fe 12 * for any of the authorized uses.
DieterGraef 0:f9b6112278fe 13 *
DieterGraef 0:f9b6112278fe 14 * THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS *AS IS* AND ANY EXPRESS OR
DieterGraef 0:f9b6112278fe 15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
DieterGraef 0:f9b6112278fe 16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
DieterGraef 0:f9b6112278fe 17 * IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
DieterGraef 0:f9b6112278fe 18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
DieterGraef 0:f9b6112278fe 19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DieterGraef 0:f9b6112278fe 20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
DieterGraef 0:f9b6112278fe 21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
DieterGraef 0:f9b6112278fe 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
DieterGraef 0:f9b6112278fe 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
DieterGraef 0:f9b6112278fe 24 *
DieterGraef 0:f9b6112278fe 25 ******************************************************************************
DieterGraef 0:f9b6112278fe 26 * REVISION HISTORY
DieterGraef 0:f9b6112278fe 27 *
DieterGraef 0:f9b6112278fe 28 * 03-01-01 Marc Boucher <marc@mbsi.ca>
DieterGraef 0:f9b6112278fe 29 * Ported to lwIP.
DieterGraef 0:f9b6112278fe 30 * 97-12-12 Guy Lancaster <lancasterg@acm.org>, Global Election Systems Inc.
DieterGraef 0:f9b6112278fe 31 * Original.
DieterGraef 0:f9b6112278fe 32 *****************************************************************************/
DieterGraef 0:f9b6112278fe 33 /*
DieterGraef 0:f9b6112278fe 34 * upap.c - User/Password Authentication Protocol.
DieterGraef 0:f9b6112278fe 35 *
DieterGraef 0:f9b6112278fe 36 * Copyright (c) 1989 Carnegie Mellon University.
DieterGraef 0:f9b6112278fe 37 * All rights reserved.
DieterGraef 0:f9b6112278fe 38 *
DieterGraef 0:f9b6112278fe 39 * Redistribution and use in source and binary forms are permitted
DieterGraef 0:f9b6112278fe 40 * provided that the above copyright notice and this paragraph are
DieterGraef 0:f9b6112278fe 41 * duplicated in all such forms and that any documentation,
DieterGraef 0:f9b6112278fe 42 * advertising materials, and other materials related to such
DieterGraef 0:f9b6112278fe 43 * distribution and use acknowledge that the software was developed
DieterGraef 0:f9b6112278fe 44 * by Carnegie Mellon University. The name of the
DieterGraef 0:f9b6112278fe 45 * University may not be used to endorse or promote products derived
DieterGraef 0:f9b6112278fe 46 * from this software without specific prior written permission.
DieterGraef 0:f9b6112278fe 47 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
DieterGraef 0:f9b6112278fe 48 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
DieterGraef 0:f9b6112278fe 49 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
DieterGraef 0:f9b6112278fe 50 */
DieterGraef 0:f9b6112278fe 51
DieterGraef 0:f9b6112278fe 52 #include "lwip/opt.h"
DieterGraef 0:f9b6112278fe 53
DieterGraef 0:f9b6112278fe 54 #if PPP_SUPPORT /* don't build if not configured for use in lwipopts.h */
DieterGraef 0:f9b6112278fe 55
DieterGraef 0:f9b6112278fe 56 #if PAP_SUPPORT /* don't build if not configured for use in lwipopts.h */
DieterGraef 0:f9b6112278fe 57
DieterGraef 0:f9b6112278fe 58 #include "ppp_impl.h"
DieterGraef 0:f9b6112278fe 59 #include "pppdebug.h"
DieterGraef 0:f9b6112278fe 60
DieterGraef 0:f9b6112278fe 61 #include "auth.h"
DieterGraef 0:f9b6112278fe 62 #include "pap.h"
DieterGraef 0:f9b6112278fe 63
DieterGraef 0:f9b6112278fe 64 #include <string.h>
DieterGraef 0:f9b6112278fe 65
DieterGraef 0:f9b6112278fe 66 #if 0 /* UNUSED */
DieterGraef 0:f9b6112278fe 67 static bool hide_password = 1;
DieterGraef 0:f9b6112278fe 68
DieterGraef 0:f9b6112278fe 69 /*
DieterGraef 0:f9b6112278fe 70 * Command-line options.
DieterGraef 0:f9b6112278fe 71 */
DieterGraef 0:f9b6112278fe 72 static option_t pap_option_list[] = {
DieterGraef 0:f9b6112278fe 73 { "hide-password", o_bool, &hide_password,
DieterGraef 0:f9b6112278fe 74 "Don't output passwords to log", 1 },
DieterGraef 0:f9b6112278fe 75 { "show-password", o_bool, &hide_password,
DieterGraef 0:f9b6112278fe 76 "Show password string in debug log messages", 0 },
DieterGraef 0:f9b6112278fe 77 { "pap-restart", o_int, &upap[0].us_timeouttime,
DieterGraef 0:f9b6112278fe 78 "Set retransmit timeout for PAP" },
DieterGraef 0:f9b6112278fe 79 { "pap-max-authreq", o_int, &upap[0].us_maxtransmits,
DieterGraef 0:f9b6112278fe 80 "Set max number of transmissions for auth-reqs" },
DieterGraef 0:f9b6112278fe 81 { "pap-timeout", o_int, &upap[0].us_reqtimeout,
DieterGraef 0:f9b6112278fe 82 "Set time limit for peer PAP authentication" },
DieterGraef 0:f9b6112278fe 83 { NULL }
DieterGraef 0:f9b6112278fe 84 };
DieterGraef 0:f9b6112278fe 85 #endif
DieterGraef 0:f9b6112278fe 86
DieterGraef 0:f9b6112278fe 87 /*
DieterGraef 0:f9b6112278fe 88 * Protocol entry points.
DieterGraef 0:f9b6112278fe 89 */
DieterGraef 0:f9b6112278fe 90 static void upap_init (int);
DieterGraef 0:f9b6112278fe 91 static void upap_lowerup (int);
DieterGraef 0:f9b6112278fe 92 static void upap_lowerdown (int);
DieterGraef 0:f9b6112278fe 93 static void upap_input (int, u_char *, int);
DieterGraef 0:f9b6112278fe 94 static void upap_protrej (int);
DieterGraef 0:f9b6112278fe 95 #if PPP_ADDITIONAL_CALLBACKS
DieterGraef 0:f9b6112278fe 96 static int upap_printpkt (u_char *, int, void (*)(void *, char *, ...), void *);
DieterGraef 0:f9b6112278fe 97 #endif /* PPP_ADDITIONAL_CALLBACKS */
DieterGraef 0:f9b6112278fe 98
DieterGraef 0:f9b6112278fe 99 struct protent pap_protent = {
DieterGraef 0:f9b6112278fe 100 PPP_PAP,
DieterGraef 0:f9b6112278fe 101 upap_init,
DieterGraef 0:f9b6112278fe 102 upap_input,
DieterGraef 0:f9b6112278fe 103 upap_protrej,
DieterGraef 0:f9b6112278fe 104 upap_lowerup,
DieterGraef 0:f9b6112278fe 105 upap_lowerdown,
DieterGraef 0:f9b6112278fe 106 NULL,
DieterGraef 0:f9b6112278fe 107 NULL,
DieterGraef 0:f9b6112278fe 108 #if PPP_ADDITIONAL_CALLBACKS
DieterGraef 0:f9b6112278fe 109 upap_printpkt,
DieterGraef 0:f9b6112278fe 110 NULL,
DieterGraef 0:f9b6112278fe 111 #endif /* PPP_ADDITIONAL_CALLBACKS */
DieterGraef 0:f9b6112278fe 112 1,
DieterGraef 0:f9b6112278fe 113 "PAP",
DieterGraef 0:f9b6112278fe 114 #if PPP_ADDITIONAL_CALLBACKS
DieterGraef 0:f9b6112278fe 115 NULL,
DieterGraef 0:f9b6112278fe 116 NULL,
DieterGraef 0:f9b6112278fe 117 NULL
DieterGraef 0:f9b6112278fe 118 #endif /* PPP_ADDITIONAL_CALLBACKS */
DieterGraef 0:f9b6112278fe 119 };
DieterGraef 0:f9b6112278fe 120
DieterGraef 0:f9b6112278fe 121 upap_state upap[NUM_PPP]; /* UPAP state; one for each unit */
DieterGraef 0:f9b6112278fe 122
DieterGraef 0:f9b6112278fe 123 static void upap_timeout (void *);
DieterGraef 0:f9b6112278fe 124 static void upap_reqtimeout(void *);
DieterGraef 0:f9b6112278fe 125 static void upap_rauthreq (upap_state *, u_char *, u_char, int);
DieterGraef 0:f9b6112278fe 126 static void upap_rauthack (upap_state *, u_char *, int, int);
DieterGraef 0:f9b6112278fe 127 static void upap_rauthnak (upap_state *, u_char *, int, int);
DieterGraef 0:f9b6112278fe 128 static void upap_sauthreq (upap_state *);
DieterGraef 0:f9b6112278fe 129 static void upap_sresp (upap_state *, u_char, u_char, char *, int);
DieterGraef 0:f9b6112278fe 130
DieterGraef 0:f9b6112278fe 131
DieterGraef 0:f9b6112278fe 132 /*
DieterGraef 0:f9b6112278fe 133 * upap_init - Initialize a UPAP unit.
DieterGraef 0:f9b6112278fe 134 */
DieterGraef 0:f9b6112278fe 135 static void
DieterGraef 0:f9b6112278fe 136 upap_init(int unit)
DieterGraef 0:f9b6112278fe 137 {
DieterGraef 0:f9b6112278fe 138 upap_state *u = &upap[unit];
DieterGraef 0:f9b6112278fe 139
DieterGraef 0:f9b6112278fe 140 UPAPDEBUG(LOG_INFO, ("upap_init: %d\n", unit));
DieterGraef 0:f9b6112278fe 141 u->us_unit = unit;
DieterGraef 0:f9b6112278fe 142 u->us_user = NULL;
DieterGraef 0:f9b6112278fe 143 u->us_userlen = 0;
DieterGraef 0:f9b6112278fe 144 u->us_passwd = NULL;
DieterGraef 0:f9b6112278fe 145 u->us_passwdlen = 0;
DieterGraef 0:f9b6112278fe 146 u->us_clientstate = UPAPCS_INITIAL;
DieterGraef 0:f9b6112278fe 147 u->us_serverstate = UPAPSS_INITIAL;
DieterGraef 0:f9b6112278fe 148 u->us_id = 0;
DieterGraef 0:f9b6112278fe 149 u->us_timeouttime = UPAP_DEFTIMEOUT;
DieterGraef 0:f9b6112278fe 150 u->us_maxtransmits = 10;
DieterGraef 0:f9b6112278fe 151 u->us_reqtimeout = UPAP_DEFREQTIME;
DieterGraef 0:f9b6112278fe 152 }
DieterGraef 0:f9b6112278fe 153
DieterGraef 0:f9b6112278fe 154 /*
DieterGraef 0:f9b6112278fe 155 * upap_authwithpeer - Authenticate us with our peer (start client).
DieterGraef 0:f9b6112278fe 156 *
DieterGraef 0:f9b6112278fe 157 * Set new state and send authenticate's.
DieterGraef 0:f9b6112278fe 158 */
DieterGraef 0:f9b6112278fe 159 void
DieterGraef 0:f9b6112278fe 160 upap_authwithpeer(int unit, char *user, char *password)
DieterGraef 0:f9b6112278fe 161 {
DieterGraef 0:f9b6112278fe 162 upap_state *u = &upap[unit];
DieterGraef 0:f9b6112278fe 163
DieterGraef 0:f9b6112278fe 164 UPAPDEBUG(LOG_INFO, ("upap_authwithpeer: %d user=%s password=%s s=%d\n",
DieterGraef 0:f9b6112278fe 165 unit, user, password, u->us_clientstate));
DieterGraef 0:f9b6112278fe 166
DieterGraef 0:f9b6112278fe 167 /* Save the username and password we're given */
DieterGraef 0:f9b6112278fe 168 u->us_user = user;
DieterGraef 0:f9b6112278fe 169 u->us_userlen = (int)strlen(user);
DieterGraef 0:f9b6112278fe 170 u->us_passwd = password;
DieterGraef 0:f9b6112278fe 171 u->us_passwdlen = (int)strlen(password);
DieterGraef 0:f9b6112278fe 172
DieterGraef 0:f9b6112278fe 173 u->us_transmits = 0;
DieterGraef 0:f9b6112278fe 174
DieterGraef 0:f9b6112278fe 175 /* Lower layer up yet? */
DieterGraef 0:f9b6112278fe 176 if (u->us_clientstate == UPAPCS_INITIAL ||
DieterGraef 0:f9b6112278fe 177 u->us_clientstate == UPAPCS_PENDING) {
DieterGraef 0:f9b6112278fe 178 u->us_clientstate = UPAPCS_PENDING;
DieterGraef 0:f9b6112278fe 179 return;
DieterGraef 0:f9b6112278fe 180 }
DieterGraef 0:f9b6112278fe 181
DieterGraef 0:f9b6112278fe 182 upap_sauthreq(u); /* Start protocol */
DieterGraef 0:f9b6112278fe 183 }
DieterGraef 0:f9b6112278fe 184
DieterGraef 0:f9b6112278fe 185
DieterGraef 0:f9b6112278fe 186 /*
DieterGraef 0:f9b6112278fe 187 * upap_authpeer - Authenticate our peer (start server).
DieterGraef 0:f9b6112278fe 188 *
DieterGraef 0:f9b6112278fe 189 * Set new state.
DieterGraef 0:f9b6112278fe 190 */
DieterGraef 0:f9b6112278fe 191 void
DieterGraef 0:f9b6112278fe 192 upap_authpeer(int unit)
DieterGraef 0:f9b6112278fe 193 {
DieterGraef 0:f9b6112278fe 194 upap_state *u = &upap[unit];
DieterGraef 0:f9b6112278fe 195
DieterGraef 0:f9b6112278fe 196 /* Lower layer up yet? */
DieterGraef 0:f9b6112278fe 197 if (u->us_serverstate == UPAPSS_INITIAL ||
DieterGraef 0:f9b6112278fe 198 u->us_serverstate == UPAPSS_PENDING) {
DieterGraef 0:f9b6112278fe 199 u->us_serverstate = UPAPSS_PENDING;
DieterGraef 0:f9b6112278fe 200 return;
DieterGraef 0:f9b6112278fe 201 }
DieterGraef 0:f9b6112278fe 202
DieterGraef 0:f9b6112278fe 203 u->us_serverstate = UPAPSS_LISTEN;
DieterGraef 0:f9b6112278fe 204 if (u->us_reqtimeout > 0) {
DieterGraef 0:f9b6112278fe 205 TIMEOUT(upap_reqtimeout, u, u->us_reqtimeout);
DieterGraef 0:f9b6112278fe 206 }
DieterGraef 0:f9b6112278fe 207 }
DieterGraef 0:f9b6112278fe 208
DieterGraef 0:f9b6112278fe 209 /*
DieterGraef 0:f9b6112278fe 210 * upap_timeout - Retransmission timer for sending auth-reqs expired.
DieterGraef 0:f9b6112278fe 211 */
DieterGraef 0:f9b6112278fe 212 static void
DieterGraef 0:f9b6112278fe 213 upap_timeout(void *arg)
DieterGraef 0:f9b6112278fe 214 {
DieterGraef 0:f9b6112278fe 215 upap_state *u = (upap_state *) arg;
DieterGraef 0:f9b6112278fe 216
DieterGraef 0:f9b6112278fe 217 UPAPDEBUG(LOG_INFO, ("upap_timeout: %d timeout %d expired s=%d\n",
DieterGraef 0:f9b6112278fe 218 u->us_unit, u->us_timeouttime, u->us_clientstate));
DieterGraef 0:f9b6112278fe 219
DieterGraef 0:f9b6112278fe 220 if (u->us_clientstate != UPAPCS_AUTHREQ) {
DieterGraef 0:f9b6112278fe 221 UPAPDEBUG(LOG_INFO, ("upap_timeout: not in AUTHREQ state!\n"));
DieterGraef 0:f9b6112278fe 222 return;
DieterGraef 0:f9b6112278fe 223 }
DieterGraef 0:f9b6112278fe 224
DieterGraef 0:f9b6112278fe 225 if (u->us_transmits >= u->us_maxtransmits) {
DieterGraef 0:f9b6112278fe 226 /* give up in disgust */
DieterGraef 0:f9b6112278fe 227 UPAPDEBUG(LOG_ERR, ("No response to PAP authenticate-requests\n"));
DieterGraef 0:f9b6112278fe 228 u->us_clientstate = UPAPCS_BADAUTH;
DieterGraef 0:f9b6112278fe 229 auth_withpeer_fail(u->us_unit, PPP_PAP);
DieterGraef 0:f9b6112278fe 230 return;
DieterGraef 0:f9b6112278fe 231 }
DieterGraef 0:f9b6112278fe 232
DieterGraef 0:f9b6112278fe 233 upap_sauthreq(u); /* Send Authenticate-Request and set upap timeout*/
DieterGraef 0:f9b6112278fe 234 }
DieterGraef 0:f9b6112278fe 235
DieterGraef 0:f9b6112278fe 236
DieterGraef 0:f9b6112278fe 237 /*
DieterGraef 0:f9b6112278fe 238 * upap_reqtimeout - Give up waiting for the peer to send an auth-req.
DieterGraef 0:f9b6112278fe 239 */
DieterGraef 0:f9b6112278fe 240 static void
DieterGraef 0:f9b6112278fe 241 upap_reqtimeout(void *arg)
DieterGraef 0:f9b6112278fe 242 {
DieterGraef 0:f9b6112278fe 243 upap_state *u = (upap_state *) arg;
DieterGraef 0:f9b6112278fe 244
DieterGraef 0:f9b6112278fe 245 if (u->us_serverstate != UPAPSS_LISTEN) {
DieterGraef 0:f9b6112278fe 246 return; /* huh?? */
DieterGraef 0:f9b6112278fe 247 }
DieterGraef 0:f9b6112278fe 248
DieterGraef 0:f9b6112278fe 249 auth_peer_fail(u->us_unit, PPP_PAP);
DieterGraef 0:f9b6112278fe 250 u->us_serverstate = UPAPSS_BADAUTH;
DieterGraef 0:f9b6112278fe 251 }
DieterGraef 0:f9b6112278fe 252
DieterGraef 0:f9b6112278fe 253
DieterGraef 0:f9b6112278fe 254 /*
DieterGraef 0:f9b6112278fe 255 * upap_lowerup - The lower layer is up.
DieterGraef 0:f9b6112278fe 256 *
DieterGraef 0:f9b6112278fe 257 * Start authenticating if pending.
DieterGraef 0:f9b6112278fe 258 */
DieterGraef 0:f9b6112278fe 259 static void
DieterGraef 0:f9b6112278fe 260 upap_lowerup(int unit)
DieterGraef 0:f9b6112278fe 261 {
DieterGraef 0:f9b6112278fe 262 upap_state *u = &upap[unit];
DieterGraef 0:f9b6112278fe 263
DieterGraef 0:f9b6112278fe 264 UPAPDEBUG(LOG_INFO, ("upap_lowerup: init %d clientstate s=%d\n", unit, u->us_clientstate));
DieterGraef 0:f9b6112278fe 265
DieterGraef 0:f9b6112278fe 266 if (u->us_clientstate == UPAPCS_INITIAL) {
DieterGraef 0:f9b6112278fe 267 u->us_clientstate = UPAPCS_CLOSED;
DieterGraef 0:f9b6112278fe 268 } else if (u->us_clientstate == UPAPCS_PENDING) {
DieterGraef 0:f9b6112278fe 269 upap_sauthreq(u); /* send an auth-request */
DieterGraef 0:f9b6112278fe 270 /* now client state is UPAPCS__AUTHREQ */
DieterGraef 0:f9b6112278fe 271 }
DieterGraef 0:f9b6112278fe 272
DieterGraef 0:f9b6112278fe 273 if (u->us_serverstate == UPAPSS_INITIAL) {
DieterGraef 0:f9b6112278fe 274 u->us_serverstate = UPAPSS_CLOSED;
DieterGraef 0:f9b6112278fe 275 } else if (u->us_serverstate == UPAPSS_PENDING) {
DieterGraef 0:f9b6112278fe 276 u->us_serverstate = UPAPSS_LISTEN;
DieterGraef 0:f9b6112278fe 277 if (u->us_reqtimeout > 0) {
DieterGraef 0:f9b6112278fe 278 TIMEOUT(upap_reqtimeout, u, u->us_reqtimeout);
DieterGraef 0:f9b6112278fe 279 }
DieterGraef 0:f9b6112278fe 280 }
DieterGraef 0:f9b6112278fe 281 }
DieterGraef 0:f9b6112278fe 282
DieterGraef 0:f9b6112278fe 283
DieterGraef 0:f9b6112278fe 284 /*
DieterGraef 0:f9b6112278fe 285 * upap_lowerdown - The lower layer is down.
DieterGraef 0:f9b6112278fe 286 *
DieterGraef 0:f9b6112278fe 287 * Cancel all timeouts.
DieterGraef 0:f9b6112278fe 288 */
DieterGraef 0:f9b6112278fe 289 static void
DieterGraef 0:f9b6112278fe 290 upap_lowerdown(int unit)
DieterGraef 0:f9b6112278fe 291 {
DieterGraef 0:f9b6112278fe 292 upap_state *u = &upap[unit];
DieterGraef 0:f9b6112278fe 293
DieterGraef 0:f9b6112278fe 294 UPAPDEBUG(LOG_INFO, ("upap_lowerdown: %d s=%d\n", unit, u->us_clientstate));
DieterGraef 0:f9b6112278fe 295
DieterGraef 0:f9b6112278fe 296 if (u->us_clientstate == UPAPCS_AUTHREQ) { /* Timeout pending? */
DieterGraef 0:f9b6112278fe 297 UNTIMEOUT(upap_timeout, u); /* Cancel timeout */
DieterGraef 0:f9b6112278fe 298 }
DieterGraef 0:f9b6112278fe 299 if (u->us_serverstate == UPAPSS_LISTEN && u->us_reqtimeout > 0) {
DieterGraef 0:f9b6112278fe 300 UNTIMEOUT(upap_reqtimeout, u);
DieterGraef 0:f9b6112278fe 301 }
DieterGraef 0:f9b6112278fe 302
DieterGraef 0:f9b6112278fe 303 u->us_clientstate = UPAPCS_INITIAL;
DieterGraef 0:f9b6112278fe 304 u->us_serverstate = UPAPSS_INITIAL;
DieterGraef 0:f9b6112278fe 305 }
DieterGraef 0:f9b6112278fe 306
DieterGraef 0:f9b6112278fe 307
DieterGraef 0:f9b6112278fe 308 /*
DieterGraef 0:f9b6112278fe 309 * upap_protrej - Peer doesn't speak this protocol.
DieterGraef 0:f9b6112278fe 310 *
DieterGraef 0:f9b6112278fe 311 * This shouldn't happen. In any case, pretend lower layer went down.
DieterGraef 0:f9b6112278fe 312 */
DieterGraef 0:f9b6112278fe 313 static void
DieterGraef 0:f9b6112278fe 314 upap_protrej(int unit)
DieterGraef 0:f9b6112278fe 315 {
DieterGraef 0:f9b6112278fe 316 upap_state *u = &upap[unit];
DieterGraef 0:f9b6112278fe 317
DieterGraef 0:f9b6112278fe 318 if (u->us_clientstate == UPAPCS_AUTHREQ) {
DieterGraef 0:f9b6112278fe 319 UPAPDEBUG(LOG_ERR, ("PAP authentication failed due to protocol-reject\n"));
DieterGraef 0:f9b6112278fe 320 auth_withpeer_fail(unit, PPP_PAP);
DieterGraef 0:f9b6112278fe 321 }
DieterGraef 0:f9b6112278fe 322 if (u->us_serverstate == UPAPSS_LISTEN) {
DieterGraef 0:f9b6112278fe 323 UPAPDEBUG(LOG_ERR, ("PAP authentication of peer failed (protocol-reject)\n"));
DieterGraef 0:f9b6112278fe 324 auth_peer_fail(unit, PPP_PAP);
DieterGraef 0:f9b6112278fe 325 }
DieterGraef 0:f9b6112278fe 326 upap_lowerdown(unit);
DieterGraef 0:f9b6112278fe 327 }
DieterGraef 0:f9b6112278fe 328
DieterGraef 0:f9b6112278fe 329
DieterGraef 0:f9b6112278fe 330 /*
DieterGraef 0:f9b6112278fe 331 * upap_input - Input UPAP packet.
DieterGraef 0:f9b6112278fe 332 */
DieterGraef 0:f9b6112278fe 333 static void
DieterGraef 0:f9b6112278fe 334 upap_input(int unit, u_char *inpacket, int l)
DieterGraef 0:f9b6112278fe 335 {
DieterGraef 0:f9b6112278fe 336 upap_state *u = &upap[unit];
DieterGraef 0:f9b6112278fe 337 u_char *inp;
DieterGraef 0:f9b6112278fe 338 u_char code, id;
DieterGraef 0:f9b6112278fe 339 int len;
DieterGraef 0:f9b6112278fe 340
DieterGraef 0:f9b6112278fe 341 /*
DieterGraef 0:f9b6112278fe 342 * Parse header (code, id and length).
DieterGraef 0:f9b6112278fe 343 * If packet too short, drop it.
DieterGraef 0:f9b6112278fe 344 */
DieterGraef 0:f9b6112278fe 345 inp = inpacket;
DieterGraef 0:f9b6112278fe 346 if (l < (int)UPAP_HEADERLEN) {
DieterGraef 0:f9b6112278fe 347 UPAPDEBUG(LOG_INFO, ("pap_input: rcvd short header.\n"));
DieterGraef 0:f9b6112278fe 348 return;
DieterGraef 0:f9b6112278fe 349 }
DieterGraef 0:f9b6112278fe 350 GETCHAR(code, inp);
DieterGraef 0:f9b6112278fe 351 GETCHAR(id, inp);
DieterGraef 0:f9b6112278fe 352 GETSHORT(len, inp);
DieterGraef 0:f9b6112278fe 353 if (len < (int)UPAP_HEADERLEN) {
DieterGraef 0:f9b6112278fe 354 UPAPDEBUG(LOG_INFO, ("pap_input: rcvd illegal length.\n"));
DieterGraef 0:f9b6112278fe 355 return;
DieterGraef 0:f9b6112278fe 356 }
DieterGraef 0:f9b6112278fe 357 if (len > l) {
DieterGraef 0:f9b6112278fe 358 UPAPDEBUG(LOG_INFO, ("pap_input: rcvd short packet.\n"));
DieterGraef 0:f9b6112278fe 359 return;
DieterGraef 0:f9b6112278fe 360 }
DieterGraef 0:f9b6112278fe 361 len -= UPAP_HEADERLEN;
DieterGraef 0:f9b6112278fe 362
DieterGraef 0:f9b6112278fe 363 /*
DieterGraef 0:f9b6112278fe 364 * Action depends on code.
DieterGraef 0:f9b6112278fe 365 */
DieterGraef 0:f9b6112278fe 366 switch (code) {
DieterGraef 0:f9b6112278fe 367 case UPAP_AUTHREQ:
DieterGraef 0:f9b6112278fe 368 upap_rauthreq(u, inp, id, len);
DieterGraef 0:f9b6112278fe 369 break;
DieterGraef 0:f9b6112278fe 370
DieterGraef 0:f9b6112278fe 371 case UPAP_AUTHACK:
DieterGraef 0:f9b6112278fe 372 upap_rauthack(u, inp, id, len);
DieterGraef 0:f9b6112278fe 373 break;
DieterGraef 0:f9b6112278fe 374
DieterGraef 0:f9b6112278fe 375 case UPAP_AUTHNAK:
DieterGraef 0:f9b6112278fe 376 upap_rauthnak(u, inp, id, len);
DieterGraef 0:f9b6112278fe 377 break;
DieterGraef 0:f9b6112278fe 378
DieterGraef 0:f9b6112278fe 379 default: /* XXX Need code reject */
DieterGraef 0:f9b6112278fe 380 UPAPDEBUG(LOG_INFO, ("pap_input: UNHANDLED default: code: %d, id: %d, len: %d.\n", code, id, len));
DieterGraef 0:f9b6112278fe 381 break;
DieterGraef 0:f9b6112278fe 382 }
DieterGraef 0:f9b6112278fe 383 }
DieterGraef 0:f9b6112278fe 384
DieterGraef 0:f9b6112278fe 385
DieterGraef 0:f9b6112278fe 386 /*
DieterGraef 0:f9b6112278fe 387 * upap_rauth - Receive Authenticate.
DieterGraef 0:f9b6112278fe 388 */
DieterGraef 0:f9b6112278fe 389 static void
DieterGraef 0:f9b6112278fe 390 upap_rauthreq(upap_state *u, u_char *inp, u_char id, int len)
DieterGraef 0:f9b6112278fe 391 {
DieterGraef 0:f9b6112278fe 392 u_char ruserlen, rpasswdlen;
DieterGraef 0:f9b6112278fe 393 char *ruser, *rpasswd;
DieterGraef 0:f9b6112278fe 394 u_char retcode;
DieterGraef 0:f9b6112278fe 395 char *msg;
DieterGraef 0:f9b6112278fe 396 int msglen;
DieterGraef 0:f9b6112278fe 397
DieterGraef 0:f9b6112278fe 398 UPAPDEBUG(LOG_INFO, ("pap_rauth: Rcvd id %d.\n", id));
DieterGraef 0:f9b6112278fe 399
DieterGraef 0:f9b6112278fe 400 if (u->us_serverstate < UPAPSS_LISTEN) {
DieterGraef 0:f9b6112278fe 401 return;
DieterGraef 0:f9b6112278fe 402 }
DieterGraef 0:f9b6112278fe 403
DieterGraef 0:f9b6112278fe 404 /*
DieterGraef 0:f9b6112278fe 405 * If we receive a duplicate authenticate-request, we are
DieterGraef 0:f9b6112278fe 406 * supposed to return the same status as for the first request.
DieterGraef 0:f9b6112278fe 407 */
DieterGraef 0:f9b6112278fe 408 if (u->us_serverstate == UPAPSS_OPEN) {
DieterGraef 0:f9b6112278fe 409 upap_sresp(u, UPAP_AUTHACK, id, "", 0); /* return auth-ack */
DieterGraef 0:f9b6112278fe 410 return;
DieterGraef 0:f9b6112278fe 411 }
DieterGraef 0:f9b6112278fe 412 if (u->us_serverstate == UPAPSS_BADAUTH) {
DieterGraef 0:f9b6112278fe 413 upap_sresp(u, UPAP_AUTHNAK, id, "", 0); /* return auth-nak */
DieterGraef 0:f9b6112278fe 414 return;
DieterGraef 0:f9b6112278fe 415 }
DieterGraef 0:f9b6112278fe 416
DieterGraef 0:f9b6112278fe 417 /*
DieterGraef 0:f9b6112278fe 418 * Parse user/passwd.
DieterGraef 0:f9b6112278fe 419 */
DieterGraef 0:f9b6112278fe 420 if (len < (int)sizeof (u_char)) {
DieterGraef 0:f9b6112278fe 421 UPAPDEBUG(LOG_INFO, ("pap_rauth: rcvd short packet.\n"));
DieterGraef 0:f9b6112278fe 422 return;
DieterGraef 0:f9b6112278fe 423 }
DieterGraef 0:f9b6112278fe 424 GETCHAR(ruserlen, inp);
DieterGraef 0:f9b6112278fe 425 len -= sizeof (u_char) + ruserlen + sizeof (u_char);
DieterGraef 0:f9b6112278fe 426 if (len < 0) {
DieterGraef 0:f9b6112278fe 427 UPAPDEBUG(LOG_INFO, ("pap_rauth: rcvd short packet.\n"));
DieterGraef 0:f9b6112278fe 428 return;
DieterGraef 0:f9b6112278fe 429 }
DieterGraef 0:f9b6112278fe 430 ruser = (char *) inp;
DieterGraef 0:f9b6112278fe 431 INCPTR(ruserlen, inp);
DieterGraef 0:f9b6112278fe 432 GETCHAR(rpasswdlen, inp);
DieterGraef 0:f9b6112278fe 433 if (len < rpasswdlen) {
DieterGraef 0:f9b6112278fe 434 UPAPDEBUG(LOG_INFO, ("pap_rauth: rcvd short packet.\n"));
DieterGraef 0:f9b6112278fe 435 return;
DieterGraef 0:f9b6112278fe 436 }
DieterGraef 0:f9b6112278fe 437 rpasswd = (char *) inp;
DieterGraef 0:f9b6112278fe 438
DieterGraef 0:f9b6112278fe 439 /*
DieterGraef 0:f9b6112278fe 440 * Check the username and password given.
DieterGraef 0:f9b6112278fe 441 */
DieterGraef 0:f9b6112278fe 442 retcode = check_passwd(u->us_unit, ruser, ruserlen, rpasswd, rpasswdlen, &msg, &msglen);
DieterGraef 0:f9b6112278fe 443 /* lwip: currently retcode is always UPAP_AUTHACK */
DieterGraef 0:f9b6112278fe 444 BZERO(rpasswd, rpasswdlen);
DieterGraef 0:f9b6112278fe 445
DieterGraef 0:f9b6112278fe 446 upap_sresp(u, retcode, id, msg, msglen);
DieterGraef 0:f9b6112278fe 447
DieterGraef 0:f9b6112278fe 448 if (retcode == UPAP_AUTHACK) {
DieterGraef 0:f9b6112278fe 449 u->us_serverstate = UPAPSS_OPEN;
DieterGraef 0:f9b6112278fe 450 auth_peer_success(u->us_unit, PPP_PAP, ruser, ruserlen);
DieterGraef 0:f9b6112278fe 451 } else {
DieterGraef 0:f9b6112278fe 452 u->us_serverstate = UPAPSS_BADAUTH;
DieterGraef 0:f9b6112278fe 453 auth_peer_fail(u->us_unit, PPP_PAP);
DieterGraef 0:f9b6112278fe 454 }
DieterGraef 0:f9b6112278fe 455
DieterGraef 0:f9b6112278fe 456 if (u->us_reqtimeout > 0) {
DieterGraef 0:f9b6112278fe 457 UNTIMEOUT(upap_reqtimeout, u);
DieterGraef 0:f9b6112278fe 458 }
DieterGraef 0:f9b6112278fe 459 }
DieterGraef 0:f9b6112278fe 460
DieterGraef 0:f9b6112278fe 461
DieterGraef 0:f9b6112278fe 462 /*
DieterGraef 0:f9b6112278fe 463 * upap_rauthack - Receive Authenticate-Ack.
DieterGraef 0:f9b6112278fe 464 */
DieterGraef 0:f9b6112278fe 465 static void
DieterGraef 0:f9b6112278fe 466 upap_rauthack(upap_state *u, u_char *inp, int id, int len)
DieterGraef 0:f9b6112278fe 467 {
DieterGraef 0:f9b6112278fe 468 u_char msglen;
DieterGraef 0:f9b6112278fe 469 char *msg;
DieterGraef 0:f9b6112278fe 470
DieterGraef 0:f9b6112278fe 471 LWIP_UNUSED_ARG(id);
DieterGraef 0:f9b6112278fe 472
DieterGraef 0:f9b6112278fe 473 UPAPDEBUG(LOG_INFO, ("pap_rauthack: Rcvd id %d s=%d\n", id, u->us_clientstate));
DieterGraef 0:f9b6112278fe 474
DieterGraef 0:f9b6112278fe 475 if (u->us_clientstate != UPAPCS_AUTHREQ) { /* XXX */
DieterGraef 0:f9b6112278fe 476 UPAPDEBUG(LOG_INFO, ("pap_rauthack: us_clientstate != UPAPCS_AUTHREQ\n"));
DieterGraef 0:f9b6112278fe 477 return;
DieterGraef 0:f9b6112278fe 478 }
DieterGraef 0:f9b6112278fe 479
DieterGraef 0:f9b6112278fe 480 /*
DieterGraef 0:f9b6112278fe 481 * Parse message.
DieterGraef 0:f9b6112278fe 482 */
DieterGraef 0:f9b6112278fe 483 if (len < (int)sizeof (u_char)) {
DieterGraef 0:f9b6112278fe 484 UPAPDEBUG(LOG_INFO, ("pap_rauthack: ignoring missing msg-length.\n"));
DieterGraef 0:f9b6112278fe 485 } else {
DieterGraef 0:f9b6112278fe 486 GETCHAR(msglen, inp);
DieterGraef 0:f9b6112278fe 487 if (msglen > 0) {
DieterGraef 0:f9b6112278fe 488 len -= sizeof (u_char);
DieterGraef 0:f9b6112278fe 489 if (len < msglen) {
DieterGraef 0:f9b6112278fe 490 UPAPDEBUG(LOG_INFO, ("pap_rauthack: rcvd short packet.\n"));
DieterGraef 0:f9b6112278fe 491 return;
DieterGraef 0:f9b6112278fe 492 }
DieterGraef 0:f9b6112278fe 493 msg = (char *) inp;
DieterGraef 0:f9b6112278fe 494 PRINTMSG(msg, msglen);
DieterGraef 0:f9b6112278fe 495 }
DieterGraef 0:f9b6112278fe 496 }
DieterGraef 0:f9b6112278fe 497 UNTIMEOUT(upap_timeout, u); /* Cancel timeout */
DieterGraef 0:f9b6112278fe 498 u->us_clientstate = UPAPCS_OPEN;
DieterGraef 0:f9b6112278fe 499
DieterGraef 0:f9b6112278fe 500 auth_withpeer_success(u->us_unit, PPP_PAP);
DieterGraef 0:f9b6112278fe 501 }
DieterGraef 0:f9b6112278fe 502
DieterGraef 0:f9b6112278fe 503
DieterGraef 0:f9b6112278fe 504 /*
DieterGraef 0:f9b6112278fe 505 * upap_rauthnak - Receive Authenticate-Nak.
DieterGraef 0:f9b6112278fe 506 */
DieterGraef 0:f9b6112278fe 507 static void
DieterGraef 0:f9b6112278fe 508 upap_rauthnak(upap_state *u, u_char *inp, int id, int len)
DieterGraef 0:f9b6112278fe 509 {
DieterGraef 0:f9b6112278fe 510 u_char msglen;
DieterGraef 0:f9b6112278fe 511 char *msg;
DieterGraef 0:f9b6112278fe 512
DieterGraef 0:f9b6112278fe 513 LWIP_UNUSED_ARG(id);
DieterGraef 0:f9b6112278fe 514
DieterGraef 0:f9b6112278fe 515 UPAPDEBUG(LOG_INFO, ("pap_rauthnak: Rcvd id %d s=%d\n", id, u->us_clientstate));
DieterGraef 0:f9b6112278fe 516
DieterGraef 0:f9b6112278fe 517 if (u->us_clientstate != UPAPCS_AUTHREQ) { /* XXX */
DieterGraef 0:f9b6112278fe 518 return;
DieterGraef 0:f9b6112278fe 519 }
DieterGraef 0:f9b6112278fe 520
DieterGraef 0:f9b6112278fe 521 /*
DieterGraef 0:f9b6112278fe 522 * Parse message.
DieterGraef 0:f9b6112278fe 523 */
DieterGraef 0:f9b6112278fe 524 if (len < sizeof (u_char)) {
DieterGraef 0:f9b6112278fe 525 UPAPDEBUG(LOG_INFO, ("pap_rauthnak: ignoring missing msg-length.\n"));
DieterGraef 0:f9b6112278fe 526 } else {
DieterGraef 0:f9b6112278fe 527 GETCHAR(msglen, inp);
DieterGraef 0:f9b6112278fe 528 if(msglen > 0) {
DieterGraef 0:f9b6112278fe 529 len -= sizeof (u_char);
DieterGraef 0:f9b6112278fe 530 if (len < msglen) {
DieterGraef 0:f9b6112278fe 531 UPAPDEBUG(LOG_INFO, ("pap_rauthnak: rcvd short packet.\n"));
DieterGraef 0:f9b6112278fe 532 return;
DieterGraef 0:f9b6112278fe 533 }
DieterGraef 0:f9b6112278fe 534 msg = (char *) inp;
DieterGraef 0:f9b6112278fe 535 PRINTMSG(msg, msglen);
DieterGraef 0:f9b6112278fe 536 }
DieterGraef 0:f9b6112278fe 537 }
DieterGraef 0:f9b6112278fe 538
DieterGraef 0:f9b6112278fe 539 u->us_clientstate = UPAPCS_BADAUTH;
DieterGraef 0:f9b6112278fe 540
DieterGraef 0:f9b6112278fe 541 UPAPDEBUG(LOG_ERR, ("PAP authentication failed\n"));
DieterGraef 0:f9b6112278fe 542 auth_withpeer_fail(u->us_unit, PPP_PAP);
DieterGraef 0:f9b6112278fe 543 }
DieterGraef 0:f9b6112278fe 544
DieterGraef 0:f9b6112278fe 545
DieterGraef 0:f9b6112278fe 546 /*
DieterGraef 0:f9b6112278fe 547 * upap_sauthreq - Send an Authenticate-Request.
DieterGraef 0:f9b6112278fe 548 */
DieterGraef 0:f9b6112278fe 549 static void
DieterGraef 0:f9b6112278fe 550 upap_sauthreq(upap_state *u)
DieterGraef 0:f9b6112278fe 551 {
DieterGraef 0:f9b6112278fe 552 u_char *outp;
DieterGraef 0:f9b6112278fe 553 int outlen;
DieterGraef 0:f9b6112278fe 554
DieterGraef 0:f9b6112278fe 555 outlen = UPAP_HEADERLEN + 2 * sizeof (u_char)
DieterGraef 0:f9b6112278fe 556 + u->us_userlen + u->us_passwdlen;
DieterGraef 0:f9b6112278fe 557 outp = outpacket_buf[u->us_unit];
DieterGraef 0:f9b6112278fe 558
DieterGraef 0:f9b6112278fe 559 MAKEHEADER(outp, PPP_PAP);
DieterGraef 0:f9b6112278fe 560
DieterGraef 0:f9b6112278fe 561 PUTCHAR(UPAP_AUTHREQ, outp);
DieterGraef 0:f9b6112278fe 562 PUTCHAR(++u->us_id, outp);
DieterGraef 0:f9b6112278fe 563 PUTSHORT(outlen, outp);
DieterGraef 0:f9b6112278fe 564 PUTCHAR(u->us_userlen, outp);
DieterGraef 0:f9b6112278fe 565 BCOPY(u->us_user, outp, u->us_userlen);
DieterGraef 0:f9b6112278fe 566 INCPTR(u->us_userlen, outp);
DieterGraef 0:f9b6112278fe 567 PUTCHAR(u->us_passwdlen, outp);
DieterGraef 0:f9b6112278fe 568 BCOPY(u->us_passwd, outp, u->us_passwdlen);
DieterGraef 0:f9b6112278fe 569
DieterGraef 0:f9b6112278fe 570 pppWrite(u->us_unit, outpacket_buf[u->us_unit], outlen + PPP_HDRLEN);
DieterGraef 0:f9b6112278fe 571
DieterGraef 0:f9b6112278fe 572 UPAPDEBUG(LOG_INFO, ("pap_sauth: Sent id %d\n", u->us_id));
DieterGraef 0:f9b6112278fe 573
DieterGraef 0:f9b6112278fe 574 TIMEOUT(upap_timeout, u, u->us_timeouttime);
DieterGraef 0:f9b6112278fe 575 ++u->us_transmits;
DieterGraef 0:f9b6112278fe 576 u->us_clientstate = UPAPCS_AUTHREQ;
DieterGraef 0:f9b6112278fe 577 }
DieterGraef 0:f9b6112278fe 578
DieterGraef 0:f9b6112278fe 579
DieterGraef 0:f9b6112278fe 580 /*
DieterGraef 0:f9b6112278fe 581 * upap_sresp - Send a response (ack or nak).
DieterGraef 0:f9b6112278fe 582 */
DieterGraef 0:f9b6112278fe 583 static void
DieterGraef 0:f9b6112278fe 584 upap_sresp(upap_state *u, u_char code, u_char id, char *msg, int msglen)
DieterGraef 0:f9b6112278fe 585 {
DieterGraef 0:f9b6112278fe 586 u_char *outp;
DieterGraef 0:f9b6112278fe 587 int outlen;
DieterGraef 0:f9b6112278fe 588
DieterGraef 0:f9b6112278fe 589 outlen = UPAP_HEADERLEN + sizeof (u_char) + msglen;
DieterGraef 0:f9b6112278fe 590 outp = outpacket_buf[u->us_unit];
DieterGraef 0:f9b6112278fe 591 MAKEHEADER(outp, PPP_PAP);
DieterGraef 0:f9b6112278fe 592
DieterGraef 0:f9b6112278fe 593 PUTCHAR(code, outp);
DieterGraef 0:f9b6112278fe 594 PUTCHAR(id, outp);
DieterGraef 0:f9b6112278fe 595 PUTSHORT(outlen, outp);
DieterGraef 0:f9b6112278fe 596 PUTCHAR(msglen, outp);
DieterGraef 0:f9b6112278fe 597 BCOPY(msg, outp, msglen);
DieterGraef 0:f9b6112278fe 598 pppWrite(u->us_unit, outpacket_buf[u->us_unit], outlen + PPP_HDRLEN);
DieterGraef 0:f9b6112278fe 599
DieterGraef 0:f9b6112278fe 600 UPAPDEBUG(LOG_INFO, ("pap_sresp: Sent code %d, id %d s=%d\n", code, id, u->us_clientstate));
DieterGraef 0:f9b6112278fe 601 }
DieterGraef 0:f9b6112278fe 602
DieterGraef 0:f9b6112278fe 603 #if PPP_ADDITIONAL_CALLBACKS
DieterGraef 0:f9b6112278fe 604 static char *upap_codenames[] = {
DieterGraef 0:f9b6112278fe 605 "AuthReq", "AuthAck", "AuthNak"
DieterGraef 0:f9b6112278fe 606 };
DieterGraef 0:f9b6112278fe 607
DieterGraef 0:f9b6112278fe 608 /*
DieterGraef 0:f9b6112278fe 609 * upap_printpkt - print the contents of a PAP packet.
DieterGraef 0:f9b6112278fe 610 */
DieterGraef 0:f9b6112278fe 611 static int upap_printpkt(
DieterGraef 0:f9b6112278fe 612 u_char *p,
DieterGraef 0:f9b6112278fe 613 int plen,
DieterGraef 0:f9b6112278fe 614 void (*printer) (void *, char *, ...),
DieterGraef 0:f9b6112278fe 615 void *arg
DieterGraef 0:f9b6112278fe 616 )
DieterGraef 0:f9b6112278fe 617 {
DieterGraef 0:f9b6112278fe 618 LWIP_UNUSED_ARG(p);
DieterGraef 0:f9b6112278fe 619 LWIP_UNUSED_ARG(plen);
DieterGraef 0:f9b6112278fe 620 LWIP_UNUSED_ARG(printer);
DieterGraef 0:f9b6112278fe 621 LWIP_UNUSED_ARG(arg);
DieterGraef 0:f9b6112278fe 622 return 0;
DieterGraef 0:f9b6112278fe 623 }
DieterGraef 0:f9b6112278fe 624 #endif /* PPP_ADDITIONAL_CALLBACKS */
DieterGraef 0:f9b6112278fe 625
DieterGraef 0:f9b6112278fe 626 #endif /* PAP_SUPPORT */
DieterGraef 0:f9b6112278fe 627
DieterGraef 0:f9b6112278fe 628 #endif /* PPP_SUPPORT */