Adam Green / EthernetInterface

Deprecated fork of old network stack source from github. Please use official library instead: https://mbed.org/users/mbed_official/code/EthernetInterface/

lwip/netif/ppp/pap.c@0:3b00827bb0b7, 2013-09-07 (annotated)

Committer:
AdamGreen
Date:
Sat Sep 07 21:38:42 2013 +0000
Revision:
0:3b00827bb0b7
Sync to latest network stack source from github.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
AdamGreen 0:3b00827bb0b7 1 /*****************************************************************************
AdamGreen 0:3b00827bb0b7 2 * pap.c - Network Password Authentication Protocol program file.
AdamGreen 0:3b00827bb0b7 3 *
AdamGreen 0:3b00827bb0b7 4 * Copyright (c) 2003 by Marc Boucher, Services Informatiques (MBSI) inc.
AdamGreen 0:3b00827bb0b7 5 * portions Copyright (c) 1997 by Global Election Systems Inc.
AdamGreen 0:3b00827bb0b7 6 *
AdamGreen 0:3b00827bb0b7 7 * The authors hereby grant permission to use, copy, modify, distribute,
AdamGreen 0:3b00827bb0b7 8 * and license this software and its documentation for any purpose, provided
AdamGreen 0:3b00827bb0b7 9 * that existing copyright notices are retained in all copies and that this
AdamGreen 0:3b00827bb0b7 10 * notice and the following disclaimer are included verbatim in any
AdamGreen 0:3b00827bb0b7 11 * distributions. No written agreement, license, or royalty fee is required
AdamGreen 0:3b00827bb0b7 12 * for any of the authorized uses.
AdamGreen 0:3b00827bb0b7 13 *
AdamGreen 0:3b00827bb0b7 14 * THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS *AS IS* AND ANY EXPRESS OR
AdamGreen 0:3b00827bb0b7 15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
AdamGreen 0:3b00827bb0b7 16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
AdamGreen 0:3b00827bb0b7 17 * IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
AdamGreen 0:3b00827bb0b7 18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
AdamGreen 0:3b00827bb0b7 19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
AdamGreen 0:3b00827bb0b7 20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
AdamGreen 0:3b00827bb0b7 21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
AdamGreen 0:3b00827bb0b7 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
AdamGreen 0:3b00827bb0b7 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
AdamGreen 0:3b00827bb0b7 24 *
AdamGreen 0:3b00827bb0b7 25 ******************************************************************************
AdamGreen 0:3b00827bb0b7 26 * REVISION HISTORY
AdamGreen 0:3b00827bb0b7 27 *
AdamGreen 0:3b00827bb0b7 28 * 03-01-01 Marc Boucher <marc@mbsi.ca>
AdamGreen 0:3b00827bb0b7 29 * Ported to lwIP.
AdamGreen 0:3b00827bb0b7 30 * 97-12-12 Guy Lancaster <lancasterg@acm.org>, Global Election Systems Inc.
AdamGreen 0:3b00827bb0b7 31 * Original.
AdamGreen 0:3b00827bb0b7 32 *****************************************************************************/
AdamGreen 0:3b00827bb0b7 33 /*
AdamGreen 0:3b00827bb0b7 34 * upap.c - User/Password Authentication Protocol.
AdamGreen 0:3b00827bb0b7 35 *
AdamGreen 0:3b00827bb0b7 36 * Copyright (c) 1989 Carnegie Mellon University.
AdamGreen 0:3b00827bb0b7 37 * All rights reserved.
AdamGreen 0:3b00827bb0b7 38 *
AdamGreen 0:3b00827bb0b7 39 * Redistribution and use in source and binary forms are permitted
AdamGreen 0:3b00827bb0b7 40 * provided that the above copyright notice and this paragraph are
AdamGreen 0:3b00827bb0b7 41 * duplicated in all such forms and that any documentation,
AdamGreen 0:3b00827bb0b7 42 * advertising materials, and other materials related to such
AdamGreen 0:3b00827bb0b7 43 * distribution and use acknowledge that the software was developed
AdamGreen 0:3b00827bb0b7 44 * by Carnegie Mellon University. The name of the
AdamGreen 0:3b00827bb0b7 45 * University may not be used to endorse or promote products derived
AdamGreen 0:3b00827bb0b7 46 * from this software without specific prior written permission.
AdamGreen 0:3b00827bb0b7 47 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
AdamGreen 0:3b00827bb0b7 48 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
AdamGreen 0:3b00827bb0b7 49 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
AdamGreen 0:3b00827bb0b7 50 */
AdamGreen 0:3b00827bb0b7 51
AdamGreen 0:3b00827bb0b7 52 #include "lwip/opt.h"
AdamGreen 0:3b00827bb0b7 53
AdamGreen 0:3b00827bb0b7 54 #if PPP_SUPPORT /* don't build if not configured for use in lwipopts.h */
AdamGreen 0:3b00827bb0b7 55
AdamGreen 0:3b00827bb0b7 56 #if PAP_SUPPORT /* don't build if not configured for use in lwipopts.h */
AdamGreen 0:3b00827bb0b7 57
AdamGreen 0:3b00827bb0b7 58 #include "ppp.h"
AdamGreen 0:3b00827bb0b7 59 #include "pppdebug.h"
AdamGreen 0:3b00827bb0b7 60
AdamGreen 0:3b00827bb0b7 61 #include "auth.h"
AdamGreen 0:3b00827bb0b7 62 #include "pap.h"
AdamGreen 0:3b00827bb0b7 63
AdamGreen 0:3b00827bb0b7 64 #include <string.h>
AdamGreen 0:3b00827bb0b7 65
AdamGreen 0:3b00827bb0b7 66 #if 0 /* UNUSED */
AdamGreen 0:3b00827bb0b7 67 static bool hide_password = 1;
AdamGreen 0:3b00827bb0b7 68
AdamGreen 0:3b00827bb0b7 69 /*
AdamGreen 0:3b00827bb0b7 70 * Command-line options.
AdamGreen 0:3b00827bb0b7 71 */
AdamGreen 0:3b00827bb0b7 72 static option_t pap_option_list[] = {
AdamGreen 0:3b00827bb0b7 73 { "hide-password", o_bool, &hide_password,
AdamGreen 0:3b00827bb0b7 74 "Don't output passwords to log", 1 },
AdamGreen 0:3b00827bb0b7 75 { "show-password", o_bool, &hide_password,
AdamGreen 0:3b00827bb0b7 76 "Show password string in debug log messages", 0 },
AdamGreen 0:3b00827bb0b7 77 { "pap-restart", o_int, &upap[0].us_timeouttime,
AdamGreen 0:3b00827bb0b7 78 "Set retransmit timeout for PAP" },
AdamGreen 0:3b00827bb0b7 79 { "pap-max-authreq", o_int, &upap[0].us_maxtransmits,
AdamGreen 0:3b00827bb0b7 80 "Set max number of transmissions for auth-reqs" },
AdamGreen 0:3b00827bb0b7 81 { "pap-timeout", o_int, &upap[0].us_reqtimeout,
AdamGreen 0:3b00827bb0b7 82 "Set time limit for peer PAP authentication" },
AdamGreen 0:3b00827bb0b7 83 { NULL }
AdamGreen 0:3b00827bb0b7 84 };
AdamGreen 0:3b00827bb0b7 85 #endif
AdamGreen 0:3b00827bb0b7 86
AdamGreen 0:3b00827bb0b7 87 /*
AdamGreen 0:3b00827bb0b7 88 * Protocol entry points.
AdamGreen 0:3b00827bb0b7 89 */
AdamGreen 0:3b00827bb0b7 90 static void upap_init (int);
AdamGreen 0:3b00827bb0b7 91 static void upap_lowerup (int);
AdamGreen 0:3b00827bb0b7 92 static void upap_lowerdown (int);
AdamGreen 0:3b00827bb0b7 93 static void upap_input (int, u_char *, int);
AdamGreen 0:3b00827bb0b7 94 static void upap_protrej (int);
AdamGreen 0:3b00827bb0b7 95 #if PPP_ADDITIONAL_CALLBACKS
AdamGreen 0:3b00827bb0b7 96 static int upap_printpkt (u_char *, int, void (*)(void *, char *, ...), void *);
AdamGreen 0:3b00827bb0b7 97 #endif /* PPP_ADDITIONAL_CALLBACKS */
AdamGreen 0:3b00827bb0b7 98
AdamGreen 0:3b00827bb0b7 99 struct protent pap_protent = {
AdamGreen 0:3b00827bb0b7 100 PPP_PAP,
AdamGreen 0:3b00827bb0b7 101 upap_init,
AdamGreen 0:3b00827bb0b7 102 upap_input,
AdamGreen 0:3b00827bb0b7 103 upap_protrej,
AdamGreen 0:3b00827bb0b7 104 upap_lowerup,
AdamGreen 0:3b00827bb0b7 105 upap_lowerdown,
AdamGreen 0:3b00827bb0b7 106 NULL,
AdamGreen 0:3b00827bb0b7 107 NULL,
AdamGreen 0:3b00827bb0b7 108 #if PPP_ADDITIONAL_CALLBACKS
AdamGreen 0:3b00827bb0b7 109 upap_printpkt,
AdamGreen 0:3b00827bb0b7 110 NULL,
AdamGreen 0:3b00827bb0b7 111 #endif /* PPP_ADDITIONAL_CALLBACKS */
AdamGreen 0:3b00827bb0b7 112 1,
AdamGreen 0:3b00827bb0b7 113 "PAP",
AdamGreen 0:3b00827bb0b7 114 #if PPP_ADDITIONAL_CALLBACKS
AdamGreen 0:3b00827bb0b7 115 NULL,
AdamGreen 0:3b00827bb0b7 116 NULL,
AdamGreen 0:3b00827bb0b7 117 NULL
AdamGreen 0:3b00827bb0b7 118 #endif /* PPP_ADDITIONAL_CALLBACKS */
AdamGreen 0:3b00827bb0b7 119 };
AdamGreen 0:3b00827bb0b7 120
AdamGreen 0:3b00827bb0b7 121 upap_state upap[NUM_PPP]; /* UPAP state; one for each unit */
AdamGreen 0:3b00827bb0b7 122
AdamGreen 0:3b00827bb0b7 123 static void upap_timeout (void *);
AdamGreen 0:3b00827bb0b7 124 static void upap_reqtimeout(void *);
AdamGreen 0:3b00827bb0b7 125 static void upap_rauthreq (upap_state *, u_char *, u_char, int);
AdamGreen 0:3b00827bb0b7 126 static void upap_rauthack (upap_state *, u_char *, int, int);
AdamGreen 0:3b00827bb0b7 127 static void upap_rauthnak (upap_state *, u_char *, int, int);
AdamGreen 0:3b00827bb0b7 128 static void upap_sauthreq (upap_state *);
AdamGreen 0:3b00827bb0b7 129 static void upap_sresp (upap_state *, u_char, u_char, char *, int);
AdamGreen 0:3b00827bb0b7 130
AdamGreen 0:3b00827bb0b7 131
AdamGreen 0:3b00827bb0b7 132 /*
AdamGreen 0:3b00827bb0b7 133 * upap_init - Initialize a UPAP unit.
AdamGreen 0:3b00827bb0b7 134 */
AdamGreen 0:3b00827bb0b7 135 static void
AdamGreen 0:3b00827bb0b7 136 upap_init(int unit)
AdamGreen 0:3b00827bb0b7 137 {
AdamGreen 0:3b00827bb0b7 138 upap_state *u = &upap[unit];
AdamGreen 0:3b00827bb0b7 139
AdamGreen 0:3b00827bb0b7 140 UPAPDEBUG(LOG_INFO, ("upap_init: %d\n", unit));
AdamGreen 0:3b00827bb0b7 141 u->us_unit = unit;
AdamGreen 0:3b00827bb0b7 142 u->us_user = NULL;
AdamGreen 0:3b00827bb0b7 143 u->us_userlen = 0;
AdamGreen 0:3b00827bb0b7 144 u->us_passwd = NULL;
AdamGreen 0:3b00827bb0b7 145 u->us_passwdlen = 0;
AdamGreen 0:3b00827bb0b7 146 u->us_clientstate = UPAPCS_INITIAL;
AdamGreen 0:3b00827bb0b7 147 u->us_serverstate = UPAPSS_INITIAL;
AdamGreen 0:3b00827bb0b7 148 u->us_id = 0;
AdamGreen 0:3b00827bb0b7 149 u->us_timeouttime = UPAP_DEFTIMEOUT;
AdamGreen 0:3b00827bb0b7 150 u->us_maxtransmits = 10;
AdamGreen 0:3b00827bb0b7 151 u->us_reqtimeout = UPAP_DEFREQTIME;
AdamGreen 0:3b00827bb0b7 152 }
AdamGreen 0:3b00827bb0b7 153
AdamGreen 0:3b00827bb0b7 154 /*
AdamGreen 0:3b00827bb0b7 155 * upap_authwithpeer - Authenticate us with our peer (start client).
AdamGreen 0:3b00827bb0b7 156 *
AdamGreen 0:3b00827bb0b7 157 * Set new state and send authenticate's.
AdamGreen 0:3b00827bb0b7 158 */
AdamGreen 0:3b00827bb0b7 159 void
AdamGreen 0:3b00827bb0b7 160 upap_authwithpeer(int unit, char *user, char *password)
AdamGreen 0:3b00827bb0b7 161 {
AdamGreen 0:3b00827bb0b7 162 upap_state *u = &upap[unit];
AdamGreen 0:3b00827bb0b7 163
AdamGreen 0:3b00827bb0b7 164 UPAPDEBUG(LOG_INFO, ("upap_authwithpeer: %d user=%s password=%s s=%d\n",
AdamGreen 0:3b00827bb0b7 165 unit, user, password, u->us_clientstate));
AdamGreen 0:3b00827bb0b7 166
AdamGreen 0:3b00827bb0b7 167 /* Save the username and password we're given */
AdamGreen 0:3b00827bb0b7 168 u->us_user = user;
AdamGreen 0:3b00827bb0b7 169 u->us_userlen = (int)strlen(user);
AdamGreen 0:3b00827bb0b7 170 u->us_passwd = password;
AdamGreen 0:3b00827bb0b7 171 u->us_passwdlen = (int)strlen(password);
AdamGreen 0:3b00827bb0b7 172
AdamGreen 0:3b00827bb0b7 173 u->us_transmits = 0;
AdamGreen 0:3b00827bb0b7 174
AdamGreen 0:3b00827bb0b7 175 /* Lower layer up yet? */
AdamGreen 0:3b00827bb0b7 176 if (u->us_clientstate == UPAPCS_INITIAL ||
AdamGreen 0:3b00827bb0b7 177 u->us_clientstate == UPAPCS_PENDING) {
AdamGreen 0:3b00827bb0b7 178 u->us_clientstate = UPAPCS_PENDING;
AdamGreen 0:3b00827bb0b7 179 return;
AdamGreen 0:3b00827bb0b7 180 }
AdamGreen 0:3b00827bb0b7 181
AdamGreen 0:3b00827bb0b7 182 upap_sauthreq(u); /* Start protocol */
AdamGreen 0:3b00827bb0b7 183 }
AdamGreen 0:3b00827bb0b7 184
AdamGreen 0:3b00827bb0b7 185
AdamGreen 0:3b00827bb0b7 186 /*
AdamGreen 0:3b00827bb0b7 187 * upap_authpeer - Authenticate our peer (start server).
AdamGreen 0:3b00827bb0b7 188 *
AdamGreen 0:3b00827bb0b7 189 * Set new state.
AdamGreen 0:3b00827bb0b7 190 */
AdamGreen 0:3b00827bb0b7 191 void
AdamGreen 0:3b00827bb0b7 192 upap_authpeer(int unit)
AdamGreen 0:3b00827bb0b7 193 {
AdamGreen 0:3b00827bb0b7 194 upap_state *u = &upap[unit];
AdamGreen 0:3b00827bb0b7 195
AdamGreen 0:3b00827bb0b7 196 /* Lower layer up yet? */
AdamGreen 0:3b00827bb0b7 197 if (u->us_serverstate == UPAPSS_INITIAL ||
AdamGreen 0:3b00827bb0b7 198 u->us_serverstate == UPAPSS_PENDING) {
AdamGreen 0:3b00827bb0b7 199 u->us_serverstate = UPAPSS_PENDING;
AdamGreen 0:3b00827bb0b7 200 return;
AdamGreen 0:3b00827bb0b7 201 }
AdamGreen 0:3b00827bb0b7 202
AdamGreen 0:3b00827bb0b7 203 u->us_serverstate = UPAPSS_LISTEN;
AdamGreen 0:3b00827bb0b7 204 if (u->us_reqtimeout > 0) {
AdamGreen 0:3b00827bb0b7 205 TIMEOUT(upap_reqtimeout, u, u->us_reqtimeout);
AdamGreen 0:3b00827bb0b7 206 }
AdamGreen 0:3b00827bb0b7 207 }
AdamGreen 0:3b00827bb0b7 208
AdamGreen 0:3b00827bb0b7 209 /*
AdamGreen 0:3b00827bb0b7 210 * upap_timeout - Retransmission timer for sending auth-reqs expired.
AdamGreen 0:3b00827bb0b7 211 */
AdamGreen 0:3b00827bb0b7 212 static void
AdamGreen 0:3b00827bb0b7 213 upap_timeout(void *arg)
AdamGreen 0:3b00827bb0b7 214 {
AdamGreen 0:3b00827bb0b7 215 upap_state *u = (upap_state *) arg;
AdamGreen 0:3b00827bb0b7 216
AdamGreen 0:3b00827bb0b7 217 UPAPDEBUG(LOG_INFO, ("upap_timeout: %d timeout %d expired s=%d\n",
AdamGreen 0:3b00827bb0b7 218 u->us_unit, u->us_timeouttime, u->us_clientstate));
AdamGreen 0:3b00827bb0b7 219
AdamGreen 0:3b00827bb0b7 220 if (u->us_clientstate != UPAPCS_AUTHREQ) {
AdamGreen 0:3b00827bb0b7 221 UPAPDEBUG(LOG_INFO, ("upap_timeout: not in AUTHREQ state!\n"));
AdamGreen 0:3b00827bb0b7 222 return;
AdamGreen 0:3b00827bb0b7 223 }
AdamGreen 0:3b00827bb0b7 224
AdamGreen 0:3b00827bb0b7 225 if (u->us_transmits >= u->us_maxtransmits) {
AdamGreen 0:3b00827bb0b7 226 /* give up in disgust */
AdamGreen 0:3b00827bb0b7 227 UPAPDEBUG(LOG_ERR, ("No response to PAP authenticate-requests\n"));
AdamGreen 0:3b00827bb0b7 228 u->us_clientstate = UPAPCS_BADAUTH;
AdamGreen 0:3b00827bb0b7 229 auth_withpeer_fail(u->us_unit, PPP_PAP);
AdamGreen 0:3b00827bb0b7 230 return;
AdamGreen 0:3b00827bb0b7 231 }
AdamGreen 0:3b00827bb0b7 232
AdamGreen 0:3b00827bb0b7 233 upap_sauthreq(u); /* Send Authenticate-Request and set upap timeout*/
AdamGreen 0:3b00827bb0b7 234 }
AdamGreen 0:3b00827bb0b7 235
AdamGreen 0:3b00827bb0b7 236
AdamGreen 0:3b00827bb0b7 237 /*
AdamGreen 0:3b00827bb0b7 238 * upap_reqtimeout - Give up waiting for the peer to send an auth-req.
AdamGreen 0:3b00827bb0b7 239 */
AdamGreen 0:3b00827bb0b7 240 static void
AdamGreen 0:3b00827bb0b7 241 upap_reqtimeout(void *arg)
AdamGreen 0:3b00827bb0b7 242 {
AdamGreen 0:3b00827bb0b7 243 upap_state *u = (upap_state *) arg;
AdamGreen 0:3b00827bb0b7 244
AdamGreen 0:3b00827bb0b7 245 if (u->us_serverstate != UPAPSS_LISTEN) {
AdamGreen 0:3b00827bb0b7 246 return; /* huh?? */
AdamGreen 0:3b00827bb0b7 247 }
AdamGreen 0:3b00827bb0b7 248
AdamGreen 0:3b00827bb0b7 249 auth_peer_fail(u->us_unit, PPP_PAP);
AdamGreen 0:3b00827bb0b7 250 u->us_serverstate = UPAPSS_BADAUTH;
AdamGreen 0:3b00827bb0b7 251 }
AdamGreen 0:3b00827bb0b7 252
AdamGreen 0:3b00827bb0b7 253
AdamGreen 0:3b00827bb0b7 254 /*
AdamGreen 0:3b00827bb0b7 255 * upap_lowerup - The lower layer is up.
AdamGreen 0:3b00827bb0b7 256 *
AdamGreen 0:3b00827bb0b7 257 * Start authenticating if pending.
AdamGreen 0:3b00827bb0b7 258 */
AdamGreen 0:3b00827bb0b7 259 static void
AdamGreen 0:3b00827bb0b7 260 upap_lowerup(int unit)
AdamGreen 0:3b00827bb0b7 261 {
AdamGreen 0:3b00827bb0b7 262 upap_state *u = &upap[unit];
AdamGreen 0:3b00827bb0b7 263
AdamGreen 0:3b00827bb0b7 264 UPAPDEBUG(LOG_INFO, ("upap_lowerup: init %d clientstate s=%d\n", unit, u->us_clientstate));
AdamGreen 0:3b00827bb0b7 265
AdamGreen 0:3b00827bb0b7 266 if (u->us_clientstate == UPAPCS_INITIAL) {
AdamGreen 0:3b00827bb0b7 267 u->us_clientstate = UPAPCS_CLOSED;
AdamGreen 0:3b00827bb0b7 268 } else if (u->us_clientstate == UPAPCS_PENDING) {
AdamGreen 0:3b00827bb0b7 269 upap_sauthreq(u); /* send an auth-request */
AdamGreen 0:3b00827bb0b7 270 /* now client state is UPAPCS__AUTHREQ */
AdamGreen 0:3b00827bb0b7 271 }
AdamGreen 0:3b00827bb0b7 272
AdamGreen 0:3b00827bb0b7 273 if (u->us_serverstate == UPAPSS_INITIAL) {
AdamGreen 0:3b00827bb0b7 274 u->us_serverstate = UPAPSS_CLOSED;
AdamGreen 0:3b00827bb0b7 275 } else if (u->us_serverstate == UPAPSS_PENDING) {
AdamGreen 0:3b00827bb0b7 276 u->us_serverstate = UPAPSS_LISTEN;
AdamGreen 0:3b00827bb0b7 277 if (u->us_reqtimeout > 0) {
AdamGreen 0:3b00827bb0b7 278 TIMEOUT(upap_reqtimeout, u, u->us_reqtimeout);
AdamGreen 0:3b00827bb0b7 279 }
AdamGreen 0:3b00827bb0b7 280 }
AdamGreen 0:3b00827bb0b7 281 }
AdamGreen 0:3b00827bb0b7 282
AdamGreen 0:3b00827bb0b7 283
AdamGreen 0:3b00827bb0b7 284 /*
AdamGreen 0:3b00827bb0b7 285 * upap_lowerdown - The lower layer is down.
AdamGreen 0:3b00827bb0b7 286 *
AdamGreen 0:3b00827bb0b7 287 * Cancel all timeouts.
AdamGreen 0:3b00827bb0b7 288 */
AdamGreen 0:3b00827bb0b7 289 static void
AdamGreen 0:3b00827bb0b7 290 upap_lowerdown(int unit)
AdamGreen 0:3b00827bb0b7 291 {
AdamGreen 0:3b00827bb0b7 292 upap_state *u = &upap[unit];
AdamGreen 0:3b00827bb0b7 293
AdamGreen 0:3b00827bb0b7 294 UPAPDEBUG(LOG_INFO, ("upap_lowerdown: %d s=%d\n", unit, u->us_clientstate));
AdamGreen 0:3b00827bb0b7 295
AdamGreen 0:3b00827bb0b7 296 if (u->us_clientstate == UPAPCS_AUTHREQ) { /* Timeout pending? */
AdamGreen 0:3b00827bb0b7 297 UNTIMEOUT(upap_timeout, u); /* Cancel timeout */
AdamGreen 0:3b00827bb0b7 298 }
AdamGreen 0:3b00827bb0b7 299 if (u->us_serverstate == UPAPSS_LISTEN && u->us_reqtimeout > 0) {
AdamGreen 0:3b00827bb0b7 300 UNTIMEOUT(upap_reqtimeout, u);
AdamGreen 0:3b00827bb0b7 301 }
AdamGreen 0:3b00827bb0b7 302
AdamGreen 0:3b00827bb0b7 303 u->us_clientstate = UPAPCS_INITIAL;
AdamGreen 0:3b00827bb0b7 304 u->us_serverstate = UPAPSS_INITIAL;
AdamGreen 0:3b00827bb0b7 305 }
AdamGreen 0:3b00827bb0b7 306
AdamGreen 0:3b00827bb0b7 307
AdamGreen 0:3b00827bb0b7 308 /*
AdamGreen 0:3b00827bb0b7 309 * upap_protrej - Peer doesn't speak this protocol.
AdamGreen 0:3b00827bb0b7 310 *
AdamGreen 0:3b00827bb0b7 311 * This shouldn't happen. In any case, pretend lower layer went down.
AdamGreen 0:3b00827bb0b7 312 */
AdamGreen 0:3b00827bb0b7 313 static void
AdamGreen 0:3b00827bb0b7 314 upap_protrej(int unit)
AdamGreen 0:3b00827bb0b7 315 {
AdamGreen 0:3b00827bb0b7 316 upap_state *u = &upap[unit];
AdamGreen 0:3b00827bb0b7 317
AdamGreen 0:3b00827bb0b7 318 if (u->us_clientstate == UPAPCS_AUTHREQ) {
AdamGreen 0:3b00827bb0b7 319 UPAPDEBUG(LOG_ERR, ("PAP authentication failed due to protocol-reject\n"));
AdamGreen 0:3b00827bb0b7 320 auth_withpeer_fail(unit, PPP_PAP);
AdamGreen 0:3b00827bb0b7 321 }
AdamGreen 0:3b00827bb0b7 322 if (u->us_serverstate == UPAPSS_LISTEN) {
AdamGreen 0:3b00827bb0b7 323 UPAPDEBUG(LOG_ERR, ("PAP authentication of peer failed (protocol-reject)\n"));
AdamGreen 0:3b00827bb0b7 324 auth_peer_fail(unit, PPP_PAP);
AdamGreen 0:3b00827bb0b7 325 }
AdamGreen 0:3b00827bb0b7 326 upap_lowerdown(unit);
AdamGreen 0:3b00827bb0b7 327 }
AdamGreen 0:3b00827bb0b7 328
AdamGreen 0:3b00827bb0b7 329
AdamGreen 0:3b00827bb0b7 330 /*
AdamGreen 0:3b00827bb0b7 331 * upap_input - Input UPAP packet.
AdamGreen 0:3b00827bb0b7 332 */
AdamGreen 0:3b00827bb0b7 333 static void
AdamGreen 0:3b00827bb0b7 334 upap_input(int unit, u_char *inpacket, int l)
AdamGreen 0:3b00827bb0b7 335 {
AdamGreen 0:3b00827bb0b7 336 upap_state *u = &upap[unit];
AdamGreen 0:3b00827bb0b7 337 u_char *inp;
AdamGreen 0:3b00827bb0b7 338 u_char code, id;
AdamGreen 0:3b00827bb0b7 339 int len;
AdamGreen 0:3b00827bb0b7 340
AdamGreen 0:3b00827bb0b7 341 /*
AdamGreen 0:3b00827bb0b7 342 * Parse header (code, id and length).
AdamGreen 0:3b00827bb0b7 343 * If packet too short, drop it.
AdamGreen 0:3b00827bb0b7 344 */
AdamGreen 0:3b00827bb0b7 345 inp = inpacket;
AdamGreen 0:3b00827bb0b7 346 if (l < (int)UPAP_HEADERLEN) {
AdamGreen 0:3b00827bb0b7 347 UPAPDEBUG(LOG_INFO, ("pap_input: rcvd short header.\n"));
AdamGreen 0:3b00827bb0b7 348 return;
AdamGreen 0:3b00827bb0b7 349 }
AdamGreen 0:3b00827bb0b7 350 GETCHAR(code, inp);
AdamGreen 0:3b00827bb0b7 351 GETCHAR(id, inp);
AdamGreen 0:3b00827bb0b7 352 GETSHORT(len, inp);
AdamGreen 0:3b00827bb0b7 353 if (len < (int)UPAP_HEADERLEN) {
AdamGreen 0:3b00827bb0b7 354 UPAPDEBUG(LOG_INFO, ("pap_input: rcvd illegal length.\n"));
AdamGreen 0:3b00827bb0b7 355 return;
AdamGreen 0:3b00827bb0b7 356 }
AdamGreen 0:3b00827bb0b7 357 if (len > l) {
AdamGreen 0:3b00827bb0b7 358 UPAPDEBUG(LOG_INFO, ("pap_input: rcvd short packet.\n"));
AdamGreen 0:3b00827bb0b7 359 return;
AdamGreen 0:3b00827bb0b7 360 }
AdamGreen 0:3b00827bb0b7 361 len -= UPAP_HEADERLEN;
AdamGreen 0:3b00827bb0b7 362
AdamGreen 0:3b00827bb0b7 363 /*
AdamGreen 0:3b00827bb0b7 364 * Action depends on code.
AdamGreen 0:3b00827bb0b7 365 */
AdamGreen 0:3b00827bb0b7 366 switch (code) {
AdamGreen 0:3b00827bb0b7 367 case UPAP_AUTHREQ:
AdamGreen 0:3b00827bb0b7 368 upap_rauthreq(u, inp, id, len);
AdamGreen 0:3b00827bb0b7 369 break;
AdamGreen 0:3b00827bb0b7 370
AdamGreen 0:3b00827bb0b7 371 case UPAP_AUTHACK:
AdamGreen 0:3b00827bb0b7 372 upap_rauthack(u, inp, id, len);
AdamGreen 0:3b00827bb0b7 373 break;
AdamGreen 0:3b00827bb0b7 374
AdamGreen 0:3b00827bb0b7 375 case UPAP_AUTHNAK:
AdamGreen 0:3b00827bb0b7 376 upap_rauthnak(u, inp, id, len);
AdamGreen 0:3b00827bb0b7 377 break;
AdamGreen 0:3b00827bb0b7 378
AdamGreen 0:3b00827bb0b7 379 default: /* XXX Need code reject */
AdamGreen 0:3b00827bb0b7 380 UPAPDEBUG(LOG_INFO, ("pap_input: UNHANDLED default: code: %d, id: %d, len: %d.\n", code, id, len));
AdamGreen 0:3b00827bb0b7 381 break;
AdamGreen 0:3b00827bb0b7 382 }
AdamGreen 0:3b00827bb0b7 383 }
AdamGreen 0:3b00827bb0b7 384
AdamGreen 0:3b00827bb0b7 385
AdamGreen 0:3b00827bb0b7 386 /*
AdamGreen 0:3b00827bb0b7 387 * upap_rauth - Receive Authenticate.
AdamGreen 0:3b00827bb0b7 388 */
AdamGreen 0:3b00827bb0b7 389 static void
AdamGreen 0:3b00827bb0b7 390 upap_rauthreq(upap_state *u, u_char *inp, u_char id, int len)
AdamGreen 0:3b00827bb0b7 391 {
AdamGreen 0:3b00827bb0b7 392 u_char ruserlen, rpasswdlen;
AdamGreen 0:3b00827bb0b7 393 char *ruser, *rpasswd;
AdamGreen 0:3b00827bb0b7 394 u_char retcode;
AdamGreen 0:3b00827bb0b7 395 char *msg;
AdamGreen 0:3b00827bb0b7 396 int msglen;
AdamGreen 0:3b00827bb0b7 397
AdamGreen 0:3b00827bb0b7 398 UPAPDEBUG(LOG_INFO, ("pap_rauth: Rcvd id %d.\n", id));
AdamGreen 0:3b00827bb0b7 399
AdamGreen 0:3b00827bb0b7 400 if (u->us_serverstate < UPAPSS_LISTEN) {
AdamGreen 0:3b00827bb0b7 401 return;
AdamGreen 0:3b00827bb0b7 402 }
AdamGreen 0:3b00827bb0b7 403
AdamGreen 0:3b00827bb0b7 404 /*
AdamGreen 0:3b00827bb0b7 405 * If we receive a duplicate authenticate-request, we are
AdamGreen 0:3b00827bb0b7 406 * supposed to return the same status as for the first request.
AdamGreen 0:3b00827bb0b7 407 */
AdamGreen 0:3b00827bb0b7 408 if (u->us_serverstate == UPAPSS_OPEN) {
AdamGreen 0:3b00827bb0b7 409 upap_sresp(u, UPAP_AUTHACK, id, "", 0); /* return auth-ack */
AdamGreen 0:3b00827bb0b7 410 return;
AdamGreen 0:3b00827bb0b7 411 }
AdamGreen 0:3b00827bb0b7 412 if (u->us_serverstate == UPAPSS_BADAUTH) {
AdamGreen 0:3b00827bb0b7 413 upap_sresp(u, UPAP_AUTHNAK, id, "", 0); /* return auth-nak */
AdamGreen 0:3b00827bb0b7 414 return;
AdamGreen 0:3b00827bb0b7 415 }
AdamGreen 0:3b00827bb0b7 416
AdamGreen 0:3b00827bb0b7 417 /*
AdamGreen 0:3b00827bb0b7 418 * Parse user/passwd.
AdamGreen 0:3b00827bb0b7 419 */
AdamGreen 0:3b00827bb0b7 420 if (len < (int)sizeof (u_char)) {
AdamGreen 0:3b00827bb0b7 421 UPAPDEBUG(LOG_INFO, ("pap_rauth: rcvd short packet.\n"));
AdamGreen 0:3b00827bb0b7 422 return;
AdamGreen 0:3b00827bb0b7 423 }
AdamGreen 0:3b00827bb0b7 424 GETCHAR(ruserlen, inp);
AdamGreen 0:3b00827bb0b7 425 len -= sizeof (u_char) + ruserlen + sizeof (u_char);
AdamGreen 0:3b00827bb0b7 426 if (len < 0) {
AdamGreen 0:3b00827bb0b7 427 UPAPDEBUG(LOG_INFO, ("pap_rauth: rcvd short packet.\n"));
AdamGreen 0:3b00827bb0b7 428 return;
AdamGreen 0:3b00827bb0b7 429 }
AdamGreen 0:3b00827bb0b7 430 ruser = (char *) inp;
AdamGreen 0:3b00827bb0b7 431 INCPTR(ruserlen, inp);
AdamGreen 0:3b00827bb0b7 432 GETCHAR(rpasswdlen, inp);
AdamGreen 0:3b00827bb0b7 433 if (len < rpasswdlen) {
AdamGreen 0:3b00827bb0b7 434 UPAPDEBUG(LOG_INFO, ("pap_rauth: rcvd short packet.\n"));
AdamGreen 0:3b00827bb0b7 435 return;
AdamGreen 0:3b00827bb0b7 436 }
AdamGreen 0:3b00827bb0b7 437 rpasswd = (char *) inp;
AdamGreen 0:3b00827bb0b7 438
AdamGreen 0:3b00827bb0b7 439 /*
AdamGreen 0:3b00827bb0b7 440 * Check the username and password given.
AdamGreen 0:3b00827bb0b7 441 */
AdamGreen 0:3b00827bb0b7 442 retcode = check_passwd(u->us_unit, ruser, ruserlen, rpasswd, rpasswdlen, &msg, &msglen);
AdamGreen 0:3b00827bb0b7 443 /* lwip: currently retcode is always UPAP_AUTHACK */
AdamGreen 0:3b00827bb0b7 444 BZERO(rpasswd, rpasswdlen);
AdamGreen 0:3b00827bb0b7 445
AdamGreen 0:3b00827bb0b7 446 upap_sresp(u, retcode, id, msg, msglen);
AdamGreen 0:3b00827bb0b7 447
AdamGreen 0:3b00827bb0b7 448 if (retcode == UPAP_AUTHACK) {
AdamGreen 0:3b00827bb0b7 449 u->us_serverstate = UPAPSS_OPEN;
AdamGreen 0:3b00827bb0b7 450 auth_peer_success(u->us_unit, PPP_PAP, ruser, ruserlen);
AdamGreen 0:3b00827bb0b7 451 } else {
AdamGreen 0:3b00827bb0b7 452 u->us_serverstate = UPAPSS_BADAUTH;
AdamGreen 0:3b00827bb0b7 453 auth_peer_fail(u->us_unit, PPP_PAP);
AdamGreen 0:3b00827bb0b7 454 }
AdamGreen 0:3b00827bb0b7 455
AdamGreen 0:3b00827bb0b7 456 if (u->us_reqtimeout > 0) {
AdamGreen 0:3b00827bb0b7 457 UNTIMEOUT(upap_reqtimeout, u);
AdamGreen 0:3b00827bb0b7 458 }
AdamGreen 0:3b00827bb0b7 459 }
AdamGreen 0:3b00827bb0b7 460
AdamGreen 0:3b00827bb0b7 461
AdamGreen 0:3b00827bb0b7 462 /*
AdamGreen 0:3b00827bb0b7 463 * upap_rauthack - Receive Authenticate-Ack.
AdamGreen 0:3b00827bb0b7 464 */
AdamGreen 0:3b00827bb0b7 465 static void
AdamGreen 0:3b00827bb0b7 466 upap_rauthack(upap_state *u, u_char *inp, int id, int len)
AdamGreen 0:3b00827bb0b7 467 {
AdamGreen 0:3b00827bb0b7 468 u_char msglen;
AdamGreen 0:3b00827bb0b7 469 char *msg;
AdamGreen 0:3b00827bb0b7 470
AdamGreen 0:3b00827bb0b7 471 LWIP_UNUSED_ARG(id);
AdamGreen 0:3b00827bb0b7 472
AdamGreen 0:3b00827bb0b7 473 UPAPDEBUG(LOG_INFO, ("pap_rauthack: Rcvd id %d s=%d\n", id, u->us_clientstate));
AdamGreen 0:3b00827bb0b7 474
AdamGreen 0:3b00827bb0b7 475 if (u->us_clientstate != UPAPCS_AUTHREQ) { /* XXX */
AdamGreen 0:3b00827bb0b7 476 UPAPDEBUG(LOG_INFO, ("pap_rauthack: us_clientstate != UPAPCS_AUTHREQ\n"));
AdamGreen 0:3b00827bb0b7 477 return;
AdamGreen 0:3b00827bb0b7 478 }
AdamGreen 0:3b00827bb0b7 479
AdamGreen 0:3b00827bb0b7 480 /*
AdamGreen 0:3b00827bb0b7 481 * Parse message.
AdamGreen 0:3b00827bb0b7 482 */
AdamGreen 0:3b00827bb0b7 483 if (len < (int)sizeof (u_char)) {
AdamGreen 0:3b00827bb0b7 484 UPAPDEBUG(LOG_INFO, ("pap_rauthack: ignoring missing msg-length.\n"));
AdamGreen 0:3b00827bb0b7 485 } else {
AdamGreen 0:3b00827bb0b7 486 GETCHAR(msglen, inp);
AdamGreen 0:3b00827bb0b7 487 if (msglen > 0) {
AdamGreen 0:3b00827bb0b7 488 len -= sizeof (u_char);
AdamGreen 0:3b00827bb0b7 489 if (len < msglen) {
AdamGreen 0:3b00827bb0b7 490 UPAPDEBUG(LOG_INFO, ("pap_rauthack: rcvd short packet.\n"));
AdamGreen 0:3b00827bb0b7 491 return;
AdamGreen 0:3b00827bb0b7 492 }
AdamGreen 0:3b00827bb0b7 493 msg = (char *) inp;
AdamGreen 0:3b00827bb0b7 494 PRINTMSG(msg, msglen);
AdamGreen 0:3b00827bb0b7 495 }
AdamGreen 0:3b00827bb0b7 496 }
AdamGreen 0:3b00827bb0b7 497 UNTIMEOUT(upap_timeout, u); /* Cancel timeout */
AdamGreen 0:3b00827bb0b7 498 u->us_clientstate = UPAPCS_OPEN;
AdamGreen 0:3b00827bb0b7 499
AdamGreen 0:3b00827bb0b7 500 auth_withpeer_success(u->us_unit, PPP_PAP);
AdamGreen 0:3b00827bb0b7 501 }
AdamGreen 0:3b00827bb0b7 502
AdamGreen 0:3b00827bb0b7 503
AdamGreen 0:3b00827bb0b7 504 /*
AdamGreen 0:3b00827bb0b7 505 * upap_rauthnak - Receive Authenticate-Nak.
AdamGreen 0:3b00827bb0b7 506 */
AdamGreen 0:3b00827bb0b7 507 static void
AdamGreen 0:3b00827bb0b7 508 upap_rauthnak(upap_state *u, u_char *inp, int id, int len)
AdamGreen 0:3b00827bb0b7 509 {
AdamGreen 0:3b00827bb0b7 510 u_char msglen;
AdamGreen 0:3b00827bb0b7 511 char *msg;
AdamGreen 0:3b00827bb0b7 512
AdamGreen 0:3b00827bb0b7 513 LWIP_UNUSED_ARG(id);
AdamGreen 0:3b00827bb0b7 514
AdamGreen 0:3b00827bb0b7 515 UPAPDEBUG(LOG_INFO, ("pap_rauthnak: Rcvd id %d s=%d\n", id, u->us_clientstate));
AdamGreen 0:3b00827bb0b7 516
AdamGreen 0:3b00827bb0b7 517 if (u->us_clientstate != UPAPCS_AUTHREQ) { /* XXX */
AdamGreen 0:3b00827bb0b7 518 return;
AdamGreen 0:3b00827bb0b7 519 }
AdamGreen 0:3b00827bb0b7 520
AdamGreen 0:3b00827bb0b7 521 /*
AdamGreen 0:3b00827bb0b7 522 * Parse message.
AdamGreen 0:3b00827bb0b7 523 */
AdamGreen 0:3b00827bb0b7 524 if (len < sizeof (u_char)) {
AdamGreen 0:3b00827bb0b7 525 UPAPDEBUG(LOG_INFO, ("pap_rauthnak: ignoring missing msg-length.\n"));
AdamGreen 0:3b00827bb0b7 526 } else {
AdamGreen 0:3b00827bb0b7 527 GETCHAR(msglen, inp);
AdamGreen 0:3b00827bb0b7 528 if(msglen > 0) {
AdamGreen 0:3b00827bb0b7 529 len -= sizeof (u_char);
AdamGreen 0:3b00827bb0b7 530 if (len < msglen) {
AdamGreen 0:3b00827bb0b7 531 UPAPDEBUG(LOG_INFO, ("pap_rauthnak: rcvd short packet.\n"));
AdamGreen 0:3b00827bb0b7 532 return;
AdamGreen 0:3b00827bb0b7 533 }
AdamGreen 0:3b00827bb0b7 534 msg = (char *) inp;
AdamGreen 0:3b00827bb0b7 535 PRINTMSG(msg, msglen);
AdamGreen 0:3b00827bb0b7 536 }
AdamGreen 0:3b00827bb0b7 537 }
AdamGreen 0:3b00827bb0b7 538
AdamGreen 0:3b00827bb0b7 539 u->us_clientstate = UPAPCS_BADAUTH;
AdamGreen 0:3b00827bb0b7 540
AdamGreen 0:3b00827bb0b7 541 UPAPDEBUG(LOG_ERR, ("PAP authentication failed\n"));
AdamGreen 0:3b00827bb0b7 542 auth_withpeer_fail(u->us_unit, PPP_PAP);
AdamGreen 0:3b00827bb0b7 543 }
AdamGreen 0:3b00827bb0b7 544
AdamGreen 0:3b00827bb0b7 545
AdamGreen 0:3b00827bb0b7 546 /*
AdamGreen 0:3b00827bb0b7 547 * upap_sauthreq - Send an Authenticate-Request.
AdamGreen 0:3b00827bb0b7 548 */
AdamGreen 0:3b00827bb0b7 549 static void
AdamGreen 0:3b00827bb0b7 550 upap_sauthreq(upap_state *u)
AdamGreen 0:3b00827bb0b7 551 {
AdamGreen 0:3b00827bb0b7 552 u_char *outp;
AdamGreen 0:3b00827bb0b7 553 int outlen;
AdamGreen 0:3b00827bb0b7 554
AdamGreen 0:3b00827bb0b7 555 outlen = UPAP_HEADERLEN + 2 * sizeof (u_char)
AdamGreen 0:3b00827bb0b7 556 + u->us_userlen + u->us_passwdlen;
AdamGreen 0:3b00827bb0b7 557 outp = outpacket_buf[u->us_unit];
AdamGreen 0:3b00827bb0b7 558
AdamGreen 0:3b00827bb0b7 559 MAKEHEADER(outp, PPP_PAP);
AdamGreen 0:3b00827bb0b7 560
AdamGreen 0:3b00827bb0b7 561 PUTCHAR(UPAP_AUTHREQ, outp);
AdamGreen 0:3b00827bb0b7 562 PUTCHAR(++u->us_id, outp);
AdamGreen 0:3b00827bb0b7 563 PUTSHORT(outlen, outp);
AdamGreen 0:3b00827bb0b7 564 PUTCHAR(u->us_userlen, outp);
AdamGreen 0:3b00827bb0b7 565 BCOPY(u->us_user, outp, u->us_userlen);
AdamGreen 0:3b00827bb0b7 566 INCPTR(u->us_userlen, outp);
AdamGreen 0:3b00827bb0b7 567 PUTCHAR(u->us_passwdlen, outp);
AdamGreen 0:3b00827bb0b7 568 BCOPY(u->us_passwd, outp, u->us_passwdlen);
AdamGreen 0:3b00827bb0b7 569
AdamGreen 0:3b00827bb0b7 570 pppWrite(u->us_unit, outpacket_buf[u->us_unit], outlen + PPP_HDRLEN);
AdamGreen 0:3b00827bb0b7 571
AdamGreen 0:3b00827bb0b7 572 UPAPDEBUG(LOG_INFO, ("pap_sauth: Sent id %d\n", u->us_id));
AdamGreen 0:3b00827bb0b7 573
AdamGreen 0:3b00827bb0b7 574 TIMEOUT(upap_timeout, u, u->us_timeouttime);
AdamGreen 0:3b00827bb0b7 575 ++u->us_transmits;
AdamGreen 0:3b00827bb0b7 576 u->us_clientstate = UPAPCS_AUTHREQ;
AdamGreen 0:3b00827bb0b7 577 }
AdamGreen 0:3b00827bb0b7 578
AdamGreen 0:3b00827bb0b7 579
AdamGreen 0:3b00827bb0b7 580 /*
AdamGreen 0:3b00827bb0b7 581 * upap_sresp - Send a response (ack or nak).
AdamGreen 0:3b00827bb0b7 582 */
AdamGreen 0:3b00827bb0b7 583 static void
AdamGreen 0:3b00827bb0b7 584 upap_sresp(upap_state *u, u_char code, u_char id, char *msg, int msglen)
AdamGreen 0:3b00827bb0b7 585 {
AdamGreen 0:3b00827bb0b7 586 u_char *outp;
AdamGreen 0:3b00827bb0b7 587 int outlen;
AdamGreen 0:3b00827bb0b7 588
AdamGreen 0:3b00827bb0b7 589 outlen = UPAP_HEADERLEN + sizeof (u_char) + msglen;
AdamGreen 0:3b00827bb0b7 590 outp = outpacket_buf[u->us_unit];
AdamGreen 0:3b00827bb0b7 591 MAKEHEADER(outp, PPP_PAP);
AdamGreen 0:3b00827bb0b7 592
AdamGreen 0:3b00827bb0b7 593 PUTCHAR(code, outp);
AdamGreen 0:3b00827bb0b7 594 PUTCHAR(id, outp);
AdamGreen 0:3b00827bb0b7 595 PUTSHORT(outlen, outp);
AdamGreen 0:3b00827bb0b7 596 PUTCHAR(msglen, outp);
AdamGreen 0:3b00827bb0b7 597 BCOPY(msg, outp, msglen);
AdamGreen 0:3b00827bb0b7 598 pppWrite(u->us_unit, outpacket_buf[u->us_unit], outlen + PPP_HDRLEN);
AdamGreen 0:3b00827bb0b7 599
AdamGreen 0:3b00827bb0b7 600 UPAPDEBUG(LOG_INFO, ("pap_sresp: Sent code %d, id %d s=%d\n", code, id, u->us_clientstate));
AdamGreen 0:3b00827bb0b7 601 }
AdamGreen 0:3b00827bb0b7 602
AdamGreen 0:3b00827bb0b7 603 #if PPP_ADDITIONAL_CALLBACKS
AdamGreen 0:3b00827bb0b7 604 static char *upap_codenames[] = {
AdamGreen 0:3b00827bb0b7 605 "AuthReq", "AuthAck", "AuthNak"
AdamGreen 0:3b00827bb0b7 606 };
AdamGreen 0:3b00827bb0b7 607
AdamGreen 0:3b00827bb0b7 608 /*
AdamGreen 0:3b00827bb0b7 609 * upap_printpkt - print the contents of a PAP packet.
AdamGreen 0:3b00827bb0b7 610 */
AdamGreen 0:3b00827bb0b7 611 static int upap_printpkt(
AdamGreen 0:3b00827bb0b7 612 u_char *p,
AdamGreen 0:3b00827bb0b7 613 int plen,
AdamGreen 0:3b00827bb0b7 614 void (*printer) (void *, char *, ...),
AdamGreen 0:3b00827bb0b7 615 void *arg
AdamGreen 0:3b00827bb0b7 616 )
AdamGreen 0:3b00827bb0b7 617 {
AdamGreen 0:3b00827bb0b7 618 LWIP_UNUSED_ARG(p);
AdamGreen 0:3b00827bb0b7 619 LWIP_UNUSED_ARG(plen);
AdamGreen 0:3b00827bb0b7 620 LWIP_UNUSED_ARG(printer);
AdamGreen 0:3b00827bb0b7 621 LWIP_UNUSED_ARG(arg);
AdamGreen 0:3b00827bb0b7 622 return 0;
AdamGreen 0:3b00827bb0b7 623 }
AdamGreen 0:3b00827bb0b7 624 #endif /* PPP_ADDITIONAL_CALLBACKS */
AdamGreen 0:3b00827bb0b7 625
AdamGreen 0:3b00827bb0b7 626 #endif /* PAP_SUPPORT */
AdamGreen 0:3b00827bb0b7 627
AdamGreen 0:3b00827bb0b7 628 #endif /* PPP_SUPPORT */