mbed official / lwip

Official mbed lwIP library (version 1.4.0)

Dependents:   LwIPNetworking NetServicesMin EthernetInterface EthernetInterface_RSF ... more

Legacy Networking Libraries

This is an mbed 2 networking library. For mbed OS 5, lwip has been integrated with built-in networking interfaces. The networking libraries have been revised to better support additional network stacks and thread safety here.

This library is based on the code of lwIP v1.4.0

Copyright (c) 2001, 2002 Swedish Institute of Computer Science.
All rights reserved. 

Redistribution and use in source and binary forms, with or without modification, 
are permitted provided that the following conditions are met:

1. Redistributions of source code must retain the above copyright notice,
   this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
   this list of conditions and the following disclaimer in the documentation
   and/or other materials provided with the distribution.
3. The name of the author may not be used to endorse or promote products
   derived from this software without specific prior written permission. 

THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 
WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 
SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 
OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 
IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 
OF SUCH DAMAGE.

netif/ppp/pap.c@20:08f08bfc3f3d, 2016-03-14 (annotated)

Committer:
mbed_official
Date:
Mon Mar 14 16:15:36 2016 +0000
Revision:
20:08f08bfc3f3d
Parent:
10:42a34d63b218 
Synchronized with git revision fec574a5ed6db26aca1b13992ff271bf527d4a0d



Full URL: https://github.com/mbedmicro/mbed/commit/fec574a5ed6db26aca1b13992ff271bf527d4a0d/



Increased allocated netbufs to handle DTLS handshakes

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 0:51ac1d130fd4 1 /*****************************************************************************
mbed_official 0:51ac1d130fd4 2 * pap.c - Network Password Authentication Protocol program file.
mbed_official 0:51ac1d130fd4 3 *
mbed_official 0:51ac1d130fd4 4 * Copyright (c) 2003 by Marc Boucher, Services Informatiques (MBSI) inc.
mbed_official 0:51ac1d130fd4 5 * portions Copyright (c) 1997 by Global Election Systems Inc.
mbed_official 0:51ac1d130fd4 6 *
mbed_official 0:51ac1d130fd4 7 * The authors hereby grant permission to use, copy, modify, distribute,
mbed_official 0:51ac1d130fd4 8 * and license this software and its documentation for any purpose, provided
mbed_official 0:51ac1d130fd4 9 * that existing copyright notices are retained in all copies and that this
mbed_official 0:51ac1d130fd4 10 * notice and the following disclaimer are included verbatim in any
mbed_official 0:51ac1d130fd4 11 * distributions. No written agreement, license, or royalty fee is required
mbed_official 0:51ac1d130fd4 12 * for any of the authorized uses.
mbed_official 0:51ac1d130fd4 13 *
mbed_official 0:51ac1d130fd4 14 * THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS *AS IS* AND ANY EXPRESS OR
mbed_official 0:51ac1d130fd4 15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
mbed_official 0:51ac1d130fd4 16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
mbed_official 0:51ac1d130fd4 17 * IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
mbed_official 0:51ac1d130fd4 18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
mbed_official 0:51ac1d130fd4 19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
mbed_official 0:51ac1d130fd4 20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
mbed_official 0:51ac1d130fd4 21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
mbed_official 0:51ac1d130fd4 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
mbed_official 0:51ac1d130fd4 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 0:51ac1d130fd4 24 *
mbed_official 0:51ac1d130fd4 25 ******************************************************************************
mbed_official 0:51ac1d130fd4 26 * REVISION HISTORY
mbed_official 0:51ac1d130fd4 27 *
mbed_official 0:51ac1d130fd4 28 * 03-01-01 Marc Boucher <marc@mbsi.ca>
mbed_official 0:51ac1d130fd4 29 * Ported to lwIP.
mbed_official 0:51ac1d130fd4 30 * 97-12-12 Guy Lancaster <lancasterg@acm.org>, Global Election Systems Inc.
mbed_official 0:51ac1d130fd4 31 * Original.
mbed_official 0:51ac1d130fd4 32 *****************************************************************************/
mbed_official 0:51ac1d130fd4 33 /*
mbed_official 0:51ac1d130fd4 34 * upap.c - User/Password Authentication Protocol.
mbed_official 0:51ac1d130fd4 35 *
mbed_official 0:51ac1d130fd4 36 * Copyright (c) 1989 Carnegie Mellon University.
mbed_official 0:51ac1d130fd4 37 * All rights reserved.
mbed_official 0:51ac1d130fd4 38 *
mbed_official 0:51ac1d130fd4 39 * Redistribution and use in source and binary forms are permitted
mbed_official 0:51ac1d130fd4 40 * provided that the above copyright notice and this paragraph are
mbed_official 0:51ac1d130fd4 41 * duplicated in all such forms and that any documentation,
mbed_official 0:51ac1d130fd4 42 * advertising materials, and other materials related to such
mbed_official 0:51ac1d130fd4 43 * distribution and use acknowledge that the software was developed
mbed_official 0:51ac1d130fd4 44 * by Carnegie Mellon University. The name of the
mbed_official 0:51ac1d130fd4 45 * University may not be used to endorse or promote products derived
mbed_official 0:51ac1d130fd4 46 * from this software without specific prior written permission.
mbed_official 0:51ac1d130fd4 47 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
mbed_official 0:51ac1d130fd4 48 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
mbed_official 0:51ac1d130fd4 49 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
mbed_official 0:51ac1d130fd4 50 */
mbed_official 0:51ac1d130fd4 51
mbed_official 0:51ac1d130fd4 52 #include "lwip/opt.h"
mbed_official 0:51ac1d130fd4 53
mbed_official 0:51ac1d130fd4 54 #if PPP_SUPPORT /* don't build if not configured for use in lwipopts.h */
mbed_official 0:51ac1d130fd4 55
mbed_official 0:51ac1d130fd4 56 #if PAP_SUPPORT /* don't build if not configured for use in lwipopts.h */
mbed_official 0:51ac1d130fd4 57
mbed_official 0:51ac1d130fd4 58 #include "ppp.h"
mbed_official 0:51ac1d130fd4 59 #include "pppdebug.h"
mbed_official 0:51ac1d130fd4 60
mbed_official 0:51ac1d130fd4 61 #include "auth.h"
mbed_official 0:51ac1d130fd4 62 #include "pap.h"
mbed_official 0:51ac1d130fd4 63
mbed_official 0:51ac1d130fd4 64 #include <string.h>
mbed_official 0:51ac1d130fd4 65
mbed_official 0:51ac1d130fd4 66 #if 0 /* UNUSED */
mbed_official 0:51ac1d130fd4 67 static bool hide_password = 1;
mbed_official 0:51ac1d130fd4 68
mbed_official 0:51ac1d130fd4 69 /*
mbed_official 0:51ac1d130fd4 70 * Command-line options.
mbed_official 0:51ac1d130fd4 71 */
mbed_official 0:51ac1d130fd4 72 static option_t pap_option_list[] = {
mbed_official 0:51ac1d130fd4 73 { "hide-password", o_bool, &hide_password,
mbed_official 0:51ac1d130fd4 74 "Don't output passwords to log", 1 },
mbed_official 0:51ac1d130fd4 75 { "show-password", o_bool, &hide_password,
mbed_official 0:51ac1d130fd4 76 "Show password string in debug log messages", 0 },
mbed_official 0:51ac1d130fd4 77 { "pap-restart", o_int, &upap[0].us_timeouttime,
mbed_official 0:51ac1d130fd4 78 "Set retransmit timeout for PAP" },
mbed_official 0:51ac1d130fd4 79 { "pap-max-authreq", o_int, &upap[0].us_maxtransmits,
mbed_official 0:51ac1d130fd4 80 "Set max number of transmissions for auth-reqs" },
mbed_official 0:51ac1d130fd4 81 { "pap-timeout", o_int, &upap[0].us_reqtimeout,
mbed_official 0:51ac1d130fd4 82 "Set time limit for peer PAP authentication" },
mbed_official 0:51ac1d130fd4 83 { NULL }
mbed_official 0:51ac1d130fd4 84 };
mbed_official 0:51ac1d130fd4 85 #endif
mbed_official 0:51ac1d130fd4 86
mbed_official 0:51ac1d130fd4 87 /*
mbed_official 0:51ac1d130fd4 88 * Protocol entry points.
mbed_official 0:51ac1d130fd4 89 */
mbed_official 0:51ac1d130fd4 90 static void upap_init (int);
mbed_official 0:51ac1d130fd4 91 static void upap_lowerup (int);
mbed_official 0:51ac1d130fd4 92 static void upap_lowerdown (int);
mbed_official 0:51ac1d130fd4 93 static void upap_input (int, u_char *, int);
mbed_official 0:51ac1d130fd4 94 static void upap_protrej (int);
mbed_official 0:51ac1d130fd4 95 #if PPP_ADDITIONAL_CALLBACKS
mbed_official 0:51ac1d130fd4 96 static int upap_printpkt (u_char *, int, void (*)(void *, char *, ...), void *);
mbed_official 0:51ac1d130fd4 97 #endif /* PPP_ADDITIONAL_CALLBACKS */
mbed_official 0:51ac1d130fd4 98
mbed_official 0:51ac1d130fd4 99 struct protent pap_protent = {
mbed_official 0:51ac1d130fd4 100 PPP_PAP,
mbed_official 0:51ac1d130fd4 101 upap_init,
mbed_official 0:51ac1d130fd4 102 upap_input,
mbed_official 0:51ac1d130fd4 103 upap_protrej,
mbed_official 0:51ac1d130fd4 104 upap_lowerup,
mbed_official 0:51ac1d130fd4 105 upap_lowerdown,
mbed_official 0:51ac1d130fd4 106 NULL,
mbed_official 0:51ac1d130fd4 107 NULL,
mbed_official 0:51ac1d130fd4 108 #if PPP_ADDITIONAL_CALLBACKS
mbed_official 0:51ac1d130fd4 109 upap_printpkt,
mbed_official 0:51ac1d130fd4 110 NULL,
mbed_official 0:51ac1d130fd4 111 #endif /* PPP_ADDITIONAL_CALLBACKS */
mbed_official 0:51ac1d130fd4 112 1,
mbed_official 0:51ac1d130fd4 113 "PAP",
mbed_official 0:51ac1d130fd4 114 #if PPP_ADDITIONAL_CALLBACKS
mbed_official 0:51ac1d130fd4 115 NULL,
mbed_official 0:51ac1d130fd4 116 NULL,
mbed_official 0:51ac1d130fd4 117 NULL
mbed_official 0:51ac1d130fd4 118 #endif /* PPP_ADDITIONAL_CALLBACKS */
mbed_official 0:51ac1d130fd4 119 };
mbed_official 0:51ac1d130fd4 120
mbed_official 0:51ac1d130fd4 121 upap_state upap[NUM_PPP]; /* UPAP state; one for each unit */
mbed_official 0:51ac1d130fd4 122
mbed_official 0:51ac1d130fd4 123 static void upap_timeout (void *);
mbed_official 0:51ac1d130fd4 124 static void upap_reqtimeout(void *);
mbed_official 0:51ac1d130fd4 125 static void upap_rauthreq (upap_state *, u_char *, u_char, int);
mbed_official 0:51ac1d130fd4 126 static void upap_rauthack (upap_state *, u_char *, int, int);
mbed_official 0:51ac1d130fd4 127 static void upap_rauthnak (upap_state *, u_char *, int, int);
mbed_official 0:51ac1d130fd4 128 static void upap_sauthreq (upap_state *);
mbed_official 0:51ac1d130fd4 129 static void upap_sresp (upap_state *, u_char, u_char, char *, int);
mbed_official 0:51ac1d130fd4 130
mbed_official 0:51ac1d130fd4 131
mbed_official 0:51ac1d130fd4 132 /*
mbed_official 0:51ac1d130fd4 133 * upap_init - Initialize a UPAP unit.
mbed_official 0:51ac1d130fd4 134 */
mbed_official 0:51ac1d130fd4 135 static void
mbed_official 0:51ac1d130fd4 136 upap_init(int unit)
mbed_official 0:51ac1d130fd4 137 {
mbed_official 0:51ac1d130fd4 138 upap_state *u = &upap[unit];
mbed_official 0:51ac1d130fd4 139
mbed_official 0:51ac1d130fd4 140 UPAPDEBUG(LOG_INFO, ("upap_init: %d\n", unit));
mbed_official 0:51ac1d130fd4 141 u->us_unit = unit;
mbed_official 0:51ac1d130fd4 142 u->us_user = NULL;
mbed_official 0:51ac1d130fd4 143 u->us_userlen = 0;
mbed_official 0:51ac1d130fd4 144 u->us_passwd = NULL;
mbed_official 0:51ac1d130fd4 145 u->us_passwdlen = 0;
mbed_official 0:51ac1d130fd4 146 u->us_clientstate = UPAPCS_INITIAL;
mbed_official 0:51ac1d130fd4 147 u->us_serverstate = UPAPSS_INITIAL;
mbed_official 0:51ac1d130fd4 148 u->us_id = 0;
mbed_official 0:51ac1d130fd4 149 u->us_timeouttime = UPAP_DEFTIMEOUT;
mbed_official 0:51ac1d130fd4 150 u->us_maxtransmits = 10;
mbed_official 0:51ac1d130fd4 151 u->us_reqtimeout = UPAP_DEFREQTIME;
mbed_official 0:51ac1d130fd4 152 }
mbed_official 0:51ac1d130fd4 153
mbed_official 0:51ac1d130fd4 154 /*
mbed_official 0:51ac1d130fd4 155 * upap_authwithpeer - Authenticate us with our peer (start client).
mbed_official 0:51ac1d130fd4 156 *
mbed_official 0:51ac1d130fd4 157 * Set new state and send authenticate's.
mbed_official 0:51ac1d130fd4 158 */
mbed_official 0:51ac1d130fd4 159 void
mbed_official 0:51ac1d130fd4 160 upap_authwithpeer(int unit, char *user, char *password)
mbed_official 0:51ac1d130fd4 161 {
mbed_official 0:51ac1d130fd4 162 upap_state *u = &upap[unit];
mbed_official 0:51ac1d130fd4 163
mbed_official 0:51ac1d130fd4 164 UPAPDEBUG(LOG_INFO, ("upap_authwithpeer: %d user=%s password=%s s=%d\n",
mbed_official 0:51ac1d130fd4 165 unit, user, password, u->us_clientstate));
mbed_official 0:51ac1d130fd4 166
mbed_official 0:51ac1d130fd4 167 /* Save the username and password we're given */
mbed_official 0:51ac1d130fd4 168 u->us_user = user;
mbed_official 0:51ac1d130fd4 169 u->us_userlen = (int)strlen(user);
mbed_official 0:51ac1d130fd4 170 u->us_passwd = password;
mbed_official 0:51ac1d130fd4 171 u->us_passwdlen = (int)strlen(password);
mbed_official 0:51ac1d130fd4 172
mbed_official 0:51ac1d130fd4 173 u->us_transmits = 0;
mbed_official 0:51ac1d130fd4 174
mbed_official 0:51ac1d130fd4 175 /* Lower layer up yet? */
mbed_official 0:51ac1d130fd4 176 if (u->us_clientstate == UPAPCS_INITIAL ||
mbed_official 0:51ac1d130fd4 177 u->us_clientstate == UPAPCS_PENDING) {
mbed_official 0:51ac1d130fd4 178 u->us_clientstate = UPAPCS_PENDING;
mbed_official 0:51ac1d130fd4 179 return;
mbed_official 0:51ac1d130fd4 180 }
mbed_official 0:51ac1d130fd4 181
mbed_official 0:51ac1d130fd4 182 upap_sauthreq(u); /* Start protocol */
mbed_official 0:51ac1d130fd4 183 }
mbed_official 0:51ac1d130fd4 184
mbed_official 0:51ac1d130fd4 185
mbed_official 0:51ac1d130fd4 186 /*
mbed_official 0:51ac1d130fd4 187 * upap_authpeer - Authenticate our peer (start server).
mbed_official 0:51ac1d130fd4 188 *
mbed_official 0:51ac1d130fd4 189 * Set new state.
mbed_official 0:51ac1d130fd4 190 */
mbed_official 0:51ac1d130fd4 191 void
mbed_official 0:51ac1d130fd4 192 upap_authpeer(int unit)
mbed_official 0:51ac1d130fd4 193 {
mbed_official 0:51ac1d130fd4 194 upap_state *u = &upap[unit];
mbed_official 0:51ac1d130fd4 195
mbed_official 0:51ac1d130fd4 196 /* Lower layer up yet? */
mbed_official 0:51ac1d130fd4 197 if (u->us_serverstate == UPAPSS_INITIAL ||
mbed_official 0:51ac1d130fd4 198 u->us_serverstate == UPAPSS_PENDING) {
mbed_official 0:51ac1d130fd4 199 u->us_serverstate = UPAPSS_PENDING;
mbed_official 0:51ac1d130fd4 200 return;
mbed_official 0:51ac1d130fd4 201 }
mbed_official 0:51ac1d130fd4 202
mbed_official 0:51ac1d130fd4 203 u->us_serverstate = UPAPSS_LISTEN;
mbed_official 0:51ac1d130fd4 204 if (u->us_reqtimeout > 0) {
mbed_official 0:51ac1d130fd4 205 TIMEOUT(upap_reqtimeout, u, u->us_reqtimeout);
mbed_official 0:51ac1d130fd4 206 }
mbed_official 0:51ac1d130fd4 207 }
mbed_official 0:51ac1d130fd4 208
mbed_official 0:51ac1d130fd4 209 /*
mbed_official 0:51ac1d130fd4 210 * upap_timeout - Retransmission timer for sending auth-reqs expired.
mbed_official 0:51ac1d130fd4 211 */
mbed_official 0:51ac1d130fd4 212 static void
mbed_official 0:51ac1d130fd4 213 upap_timeout(void *arg)
mbed_official 0:51ac1d130fd4 214 {
mbed_official 0:51ac1d130fd4 215 upap_state *u = (upap_state *) arg;
mbed_official 0:51ac1d130fd4 216
mbed_official 0:51ac1d130fd4 217 UPAPDEBUG(LOG_INFO, ("upap_timeout: %d timeout %d expired s=%d\n",
mbed_official 0:51ac1d130fd4 218 u->us_unit, u->us_timeouttime, u->us_clientstate));
mbed_official 0:51ac1d130fd4 219
mbed_official 0:51ac1d130fd4 220 if (u->us_clientstate != UPAPCS_AUTHREQ) {
emilmont 10:42a34d63b218 221 UPAPDEBUG(LOG_INFO, ("upap_timeout: not in AUTHREQ state!\n"));
mbed_official 0:51ac1d130fd4 222 return;
mbed_official 0:51ac1d130fd4 223 }
mbed_official 0:51ac1d130fd4 224
mbed_official 0:51ac1d130fd4 225 if (u->us_transmits >= u->us_maxtransmits) {
mbed_official 0:51ac1d130fd4 226 /* give up in disgust */
mbed_official 0:51ac1d130fd4 227 UPAPDEBUG(LOG_ERR, ("No response to PAP authenticate-requests\n"));
mbed_official 0:51ac1d130fd4 228 u->us_clientstate = UPAPCS_BADAUTH;
mbed_official 0:51ac1d130fd4 229 auth_withpeer_fail(u->us_unit, PPP_PAP);
mbed_official 0:51ac1d130fd4 230 return;
mbed_official 0:51ac1d130fd4 231 }
mbed_official 0:51ac1d130fd4 232
mbed_official 0:51ac1d130fd4 233 upap_sauthreq(u); /* Send Authenticate-Request and set upap timeout*/
mbed_official 0:51ac1d130fd4 234 }
mbed_official 0:51ac1d130fd4 235
mbed_official 0:51ac1d130fd4 236
mbed_official 0:51ac1d130fd4 237 /*
mbed_official 0:51ac1d130fd4 238 * upap_reqtimeout - Give up waiting for the peer to send an auth-req.
mbed_official 0:51ac1d130fd4 239 */
mbed_official 0:51ac1d130fd4 240 static void
mbed_official 0:51ac1d130fd4 241 upap_reqtimeout(void *arg)
mbed_official 0:51ac1d130fd4 242 {
mbed_official 0:51ac1d130fd4 243 upap_state *u = (upap_state *) arg;
mbed_official 0:51ac1d130fd4 244
mbed_official 0:51ac1d130fd4 245 if (u->us_serverstate != UPAPSS_LISTEN) {
mbed_official 0:51ac1d130fd4 246 return; /* huh?? */
mbed_official 0:51ac1d130fd4 247 }
mbed_official 0:51ac1d130fd4 248
mbed_official 0:51ac1d130fd4 249 auth_peer_fail(u->us_unit, PPP_PAP);
mbed_official 0:51ac1d130fd4 250 u->us_serverstate = UPAPSS_BADAUTH;
mbed_official 0:51ac1d130fd4 251 }
mbed_official 0:51ac1d130fd4 252
mbed_official 0:51ac1d130fd4 253
mbed_official 0:51ac1d130fd4 254 /*
mbed_official 0:51ac1d130fd4 255 * upap_lowerup - The lower layer is up.
mbed_official 0:51ac1d130fd4 256 *
mbed_official 0:51ac1d130fd4 257 * Start authenticating if pending.
mbed_official 0:51ac1d130fd4 258 */
mbed_official 0:51ac1d130fd4 259 static void
mbed_official 0:51ac1d130fd4 260 upap_lowerup(int unit)
mbed_official 0:51ac1d130fd4 261 {
mbed_official 0:51ac1d130fd4 262 upap_state *u = &upap[unit];
mbed_official 0:51ac1d130fd4 263
mbed_official 0:51ac1d130fd4 264 UPAPDEBUG(LOG_INFO, ("upap_lowerup: init %d clientstate s=%d\n", unit, u->us_clientstate));
mbed_official 0:51ac1d130fd4 265
mbed_official 0:51ac1d130fd4 266 if (u->us_clientstate == UPAPCS_INITIAL) {
mbed_official 0:51ac1d130fd4 267 u->us_clientstate = UPAPCS_CLOSED;
mbed_official 0:51ac1d130fd4 268 } else if (u->us_clientstate == UPAPCS_PENDING) {
mbed_official 0:51ac1d130fd4 269 upap_sauthreq(u); /* send an auth-request */
mbed_official 0:51ac1d130fd4 270 /* now client state is UPAPCS__AUTHREQ */
mbed_official 0:51ac1d130fd4 271 }
mbed_official 0:51ac1d130fd4 272
mbed_official 0:51ac1d130fd4 273 if (u->us_serverstate == UPAPSS_INITIAL) {
mbed_official 0:51ac1d130fd4 274 u->us_serverstate = UPAPSS_CLOSED;
mbed_official 0:51ac1d130fd4 275 } else if (u->us_serverstate == UPAPSS_PENDING) {
mbed_official 0:51ac1d130fd4 276 u->us_serverstate = UPAPSS_LISTEN;
mbed_official 0:51ac1d130fd4 277 if (u->us_reqtimeout > 0) {
mbed_official 0:51ac1d130fd4 278 TIMEOUT(upap_reqtimeout, u, u->us_reqtimeout);
mbed_official 0:51ac1d130fd4 279 }
mbed_official 0:51ac1d130fd4 280 }
mbed_official 0:51ac1d130fd4 281 }
mbed_official 0:51ac1d130fd4 282
mbed_official 0:51ac1d130fd4 283
mbed_official 0:51ac1d130fd4 284 /*
mbed_official 0:51ac1d130fd4 285 * upap_lowerdown - The lower layer is down.
mbed_official 0:51ac1d130fd4 286 *
mbed_official 0:51ac1d130fd4 287 * Cancel all timeouts.
mbed_official 0:51ac1d130fd4 288 */
mbed_official 0:51ac1d130fd4 289 static void
mbed_official 0:51ac1d130fd4 290 upap_lowerdown(int unit)
mbed_official 0:51ac1d130fd4 291 {
mbed_official 0:51ac1d130fd4 292 upap_state *u = &upap[unit];
mbed_official 0:51ac1d130fd4 293
mbed_official 0:51ac1d130fd4 294 UPAPDEBUG(LOG_INFO, ("upap_lowerdown: %d s=%d\n", unit, u->us_clientstate));
mbed_official 0:51ac1d130fd4 295
mbed_official 0:51ac1d130fd4 296 if (u->us_clientstate == UPAPCS_AUTHREQ) { /* Timeout pending? */
mbed_official 0:51ac1d130fd4 297 UNTIMEOUT(upap_timeout, u); /* Cancel timeout */
mbed_official 0:51ac1d130fd4 298 }
mbed_official 0:51ac1d130fd4 299 if (u->us_serverstate == UPAPSS_LISTEN && u->us_reqtimeout > 0) {
mbed_official 0:51ac1d130fd4 300 UNTIMEOUT(upap_reqtimeout, u);
mbed_official 0:51ac1d130fd4 301 }
mbed_official 0:51ac1d130fd4 302
mbed_official 0:51ac1d130fd4 303 u->us_clientstate = UPAPCS_INITIAL;
mbed_official 0:51ac1d130fd4 304 u->us_serverstate = UPAPSS_INITIAL;
mbed_official 0:51ac1d130fd4 305 }
mbed_official 0:51ac1d130fd4 306
mbed_official 0:51ac1d130fd4 307
mbed_official 0:51ac1d130fd4 308 /*
mbed_official 0:51ac1d130fd4 309 * upap_protrej - Peer doesn't speak this protocol.
mbed_official 0:51ac1d130fd4 310 *
mbed_official 0:51ac1d130fd4 311 * This shouldn't happen. In any case, pretend lower layer went down.
mbed_official 0:51ac1d130fd4 312 */
mbed_official 0:51ac1d130fd4 313 static void
mbed_official 0:51ac1d130fd4 314 upap_protrej(int unit)
mbed_official 0:51ac1d130fd4 315 {
mbed_official 0:51ac1d130fd4 316 upap_state *u = &upap[unit];
mbed_official 0:51ac1d130fd4 317
mbed_official 0:51ac1d130fd4 318 if (u->us_clientstate == UPAPCS_AUTHREQ) {
mbed_official 0:51ac1d130fd4 319 UPAPDEBUG(LOG_ERR, ("PAP authentication failed due to protocol-reject\n"));
mbed_official 0:51ac1d130fd4 320 auth_withpeer_fail(unit, PPP_PAP);
mbed_official 0:51ac1d130fd4 321 }
mbed_official 0:51ac1d130fd4 322 if (u->us_serverstate == UPAPSS_LISTEN) {
mbed_official 0:51ac1d130fd4 323 UPAPDEBUG(LOG_ERR, ("PAP authentication of peer failed (protocol-reject)\n"));
mbed_official 0:51ac1d130fd4 324 auth_peer_fail(unit, PPP_PAP);
mbed_official 0:51ac1d130fd4 325 }
mbed_official 0:51ac1d130fd4 326 upap_lowerdown(unit);
mbed_official 0:51ac1d130fd4 327 }
mbed_official 0:51ac1d130fd4 328
mbed_official 0:51ac1d130fd4 329
mbed_official 0:51ac1d130fd4 330 /*
mbed_official 0:51ac1d130fd4 331 * upap_input - Input UPAP packet.
mbed_official 0:51ac1d130fd4 332 */
mbed_official 0:51ac1d130fd4 333 static void
mbed_official 0:51ac1d130fd4 334 upap_input(int unit, u_char *inpacket, int l)
mbed_official 0:51ac1d130fd4 335 {
mbed_official 0:51ac1d130fd4 336 upap_state *u = &upap[unit];
mbed_official 0:51ac1d130fd4 337 u_char *inp;
mbed_official 0:51ac1d130fd4 338 u_char code, id;
mbed_official 0:51ac1d130fd4 339 int len;
mbed_official 0:51ac1d130fd4 340
mbed_official 0:51ac1d130fd4 341 /*
mbed_official 0:51ac1d130fd4 342 * Parse header (code, id and length).
mbed_official 0:51ac1d130fd4 343 * If packet too short, drop it.
mbed_official 0:51ac1d130fd4 344 */
mbed_official 0:51ac1d130fd4 345 inp = inpacket;
mbed_official 0:51ac1d130fd4 346 if (l < (int)UPAP_HEADERLEN) {
mbed_official 0:51ac1d130fd4 347 UPAPDEBUG(LOG_INFO, ("pap_input: rcvd short header.\n"));
mbed_official 0:51ac1d130fd4 348 return;
mbed_official 0:51ac1d130fd4 349 }
mbed_official 0:51ac1d130fd4 350 GETCHAR(code, inp);
mbed_official 0:51ac1d130fd4 351 GETCHAR(id, inp);
mbed_official 0:51ac1d130fd4 352 GETSHORT(len, inp);
mbed_official 0:51ac1d130fd4 353 if (len < (int)UPAP_HEADERLEN) {
mbed_official 0:51ac1d130fd4 354 UPAPDEBUG(LOG_INFO, ("pap_input: rcvd illegal length.\n"));
mbed_official 0:51ac1d130fd4 355 return;
mbed_official 0:51ac1d130fd4 356 }
mbed_official 0:51ac1d130fd4 357 if (len > l) {
mbed_official 0:51ac1d130fd4 358 UPAPDEBUG(LOG_INFO, ("pap_input: rcvd short packet.\n"));
mbed_official 0:51ac1d130fd4 359 return;
mbed_official 0:51ac1d130fd4 360 }
mbed_official 0:51ac1d130fd4 361 len -= UPAP_HEADERLEN;
mbed_official 0:51ac1d130fd4 362
mbed_official 0:51ac1d130fd4 363 /*
mbed_official 0:51ac1d130fd4 364 * Action depends on code.
mbed_official 0:51ac1d130fd4 365 */
mbed_official 0:51ac1d130fd4 366 switch (code) {
mbed_official 0:51ac1d130fd4 367 case UPAP_AUTHREQ:
mbed_official 0:51ac1d130fd4 368 upap_rauthreq(u, inp, id, len);
mbed_official 0:51ac1d130fd4 369 break;
mbed_official 0:51ac1d130fd4 370
mbed_official 0:51ac1d130fd4 371 case UPAP_AUTHACK:
mbed_official 0:51ac1d130fd4 372 upap_rauthack(u, inp, id, len);
mbed_official 0:51ac1d130fd4 373 break;
mbed_official 0:51ac1d130fd4 374
mbed_official 0:51ac1d130fd4 375 case UPAP_AUTHNAK:
mbed_official 0:51ac1d130fd4 376 upap_rauthnak(u, inp, id, len);
mbed_official 0:51ac1d130fd4 377 break;
mbed_official 0:51ac1d130fd4 378
mbed_official 0:51ac1d130fd4 379 default: /* XXX Need code reject */
mbed_official 0:51ac1d130fd4 380 UPAPDEBUG(LOG_INFO, ("pap_input: UNHANDLED default: code: %d, id: %d, len: %d.\n", code, id, len));
mbed_official 0:51ac1d130fd4 381 break;
mbed_official 0:51ac1d130fd4 382 }
mbed_official 0:51ac1d130fd4 383 }
mbed_official 0:51ac1d130fd4 384
mbed_official 0:51ac1d130fd4 385
mbed_official 0:51ac1d130fd4 386 /*
mbed_official 0:51ac1d130fd4 387 * upap_rauth - Receive Authenticate.
mbed_official 0:51ac1d130fd4 388 */
mbed_official 0:51ac1d130fd4 389 static void
mbed_official 0:51ac1d130fd4 390 upap_rauthreq(upap_state *u, u_char *inp, u_char id, int len)
mbed_official 0:51ac1d130fd4 391 {
mbed_official 0:51ac1d130fd4 392 u_char ruserlen, rpasswdlen;
mbed_official 0:51ac1d130fd4 393 char *ruser, *rpasswd;
mbed_official 0:51ac1d130fd4 394 u_char retcode;
mbed_official 0:51ac1d130fd4 395 char *msg;
mbed_official 0:51ac1d130fd4 396 int msglen;
mbed_official 0:51ac1d130fd4 397
mbed_official 0:51ac1d130fd4 398 UPAPDEBUG(LOG_INFO, ("pap_rauth: Rcvd id %d.\n", id));
mbed_official 0:51ac1d130fd4 399
mbed_official 0:51ac1d130fd4 400 if (u->us_serverstate < UPAPSS_LISTEN) {
mbed_official 0:51ac1d130fd4 401 return;
mbed_official 0:51ac1d130fd4 402 }
mbed_official 0:51ac1d130fd4 403
mbed_official 0:51ac1d130fd4 404 /*
mbed_official 0:51ac1d130fd4 405 * If we receive a duplicate authenticate-request, we are
mbed_official 0:51ac1d130fd4 406 * supposed to return the same status as for the first request.
mbed_official 0:51ac1d130fd4 407 */
mbed_official 0:51ac1d130fd4 408 if (u->us_serverstate == UPAPSS_OPEN) {
mbed_official 0:51ac1d130fd4 409 upap_sresp(u, UPAP_AUTHACK, id, "", 0); /* return auth-ack */
mbed_official 0:51ac1d130fd4 410 return;
mbed_official 0:51ac1d130fd4 411 }
mbed_official 0:51ac1d130fd4 412 if (u->us_serverstate == UPAPSS_BADAUTH) {
mbed_official 0:51ac1d130fd4 413 upap_sresp(u, UPAP_AUTHNAK, id, "", 0); /* return auth-nak */
mbed_official 0:51ac1d130fd4 414 return;
mbed_official 0:51ac1d130fd4 415 }
mbed_official 0:51ac1d130fd4 416
mbed_official 0:51ac1d130fd4 417 /*
mbed_official 0:51ac1d130fd4 418 * Parse user/passwd.
mbed_official 0:51ac1d130fd4 419 */
mbed_official 0:51ac1d130fd4 420 if (len < (int)sizeof (u_char)) {
mbed_official 0:51ac1d130fd4 421 UPAPDEBUG(LOG_INFO, ("pap_rauth: rcvd short packet.\n"));
mbed_official 0:51ac1d130fd4 422 return;
mbed_official 0:51ac1d130fd4 423 }
mbed_official 0:51ac1d130fd4 424 GETCHAR(ruserlen, inp);
mbed_official 0:51ac1d130fd4 425 len -= sizeof (u_char) + ruserlen + sizeof (u_char);
mbed_official 0:51ac1d130fd4 426 if (len < 0) {
mbed_official 0:51ac1d130fd4 427 UPAPDEBUG(LOG_INFO, ("pap_rauth: rcvd short packet.\n"));
mbed_official 0:51ac1d130fd4 428 return;
mbed_official 0:51ac1d130fd4 429 }
mbed_official 0:51ac1d130fd4 430 ruser = (char *) inp;
mbed_official 0:51ac1d130fd4 431 INCPTR(ruserlen, inp);
mbed_official 0:51ac1d130fd4 432 GETCHAR(rpasswdlen, inp);
mbed_official 0:51ac1d130fd4 433 if (len < rpasswdlen) {
mbed_official 0:51ac1d130fd4 434 UPAPDEBUG(LOG_INFO, ("pap_rauth: rcvd short packet.\n"));
mbed_official 0:51ac1d130fd4 435 return;
mbed_official 0:51ac1d130fd4 436 }
mbed_official 0:51ac1d130fd4 437 rpasswd = (char *) inp;
mbed_official 0:51ac1d130fd4 438
mbed_official 0:51ac1d130fd4 439 /*
mbed_official 0:51ac1d130fd4 440 * Check the username and password given.
mbed_official 0:51ac1d130fd4 441 */
mbed_official 0:51ac1d130fd4 442 retcode = check_passwd(u->us_unit, ruser, ruserlen, rpasswd, rpasswdlen, &msg, &msglen);
mbed_official 0:51ac1d130fd4 443 /* lwip: currently retcode is always UPAP_AUTHACK */
mbed_official 0:51ac1d130fd4 444 BZERO(rpasswd, rpasswdlen);
mbed_official 0:51ac1d130fd4 445
mbed_official 0:51ac1d130fd4 446 upap_sresp(u, retcode, id, msg, msglen);
mbed_official 0:51ac1d130fd4 447
mbed_official 0:51ac1d130fd4 448 if (retcode == UPAP_AUTHACK) {
mbed_official 0:51ac1d130fd4 449 u->us_serverstate = UPAPSS_OPEN;
mbed_official 0:51ac1d130fd4 450 auth_peer_success(u->us_unit, PPP_PAP, ruser, ruserlen);
mbed_official 0:51ac1d130fd4 451 } else {
mbed_official 0:51ac1d130fd4 452 u->us_serverstate = UPAPSS_BADAUTH;
mbed_official 0:51ac1d130fd4 453 auth_peer_fail(u->us_unit, PPP_PAP);
mbed_official 0:51ac1d130fd4 454 }
mbed_official 0:51ac1d130fd4 455
mbed_official 0:51ac1d130fd4 456 if (u->us_reqtimeout > 0) {
mbed_official 0:51ac1d130fd4 457 UNTIMEOUT(upap_reqtimeout, u);
mbed_official 0:51ac1d130fd4 458 }
mbed_official 0:51ac1d130fd4 459 }
mbed_official 0:51ac1d130fd4 460
mbed_official 0:51ac1d130fd4 461
mbed_official 0:51ac1d130fd4 462 /*
mbed_official 0:51ac1d130fd4 463 * upap_rauthack - Receive Authenticate-Ack.
mbed_official 0:51ac1d130fd4 464 */
mbed_official 0:51ac1d130fd4 465 static void
mbed_official 0:51ac1d130fd4 466 upap_rauthack(upap_state *u, u_char *inp, int id, int len)
mbed_official 0:51ac1d130fd4 467 {
mbed_official 0:51ac1d130fd4 468 u_char msglen;
mbed_official 0:51ac1d130fd4 469 char *msg;
mbed_official 0:51ac1d130fd4 470
mbed_official 0:51ac1d130fd4 471 LWIP_UNUSED_ARG(id);
mbed_official 0:51ac1d130fd4 472
mbed_official 0:51ac1d130fd4 473 UPAPDEBUG(LOG_INFO, ("pap_rauthack: Rcvd id %d s=%d\n", id, u->us_clientstate));
mbed_official 0:51ac1d130fd4 474
mbed_official 0:51ac1d130fd4 475 if (u->us_clientstate != UPAPCS_AUTHREQ) { /* XXX */
mbed_official 0:51ac1d130fd4 476 UPAPDEBUG(LOG_INFO, ("pap_rauthack: us_clientstate != UPAPCS_AUTHREQ\n"));
mbed_official 0:51ac1d130fd4 477 return;
mbed_official 0:51ac1d130fd4 478 }
mbed_official 0:51ac1d130fd4 479
mbed_official 0:51ac1d130fd4 480 /*
mbed_official 0:51ac1d130fd4 481 * Parse message.
mbed_official 0:51ac1d130fd4 482 */
mbed_official 0:51ac1d130fd4 483 if (len < (int)sizeof (u_char)) {
mbed_official 0:51ac1d130fd4 484 UPAPDEBUG(LOG_INFO, ("pap_rauthack: ignoring missing msg-length.\n"));
mbed_official 0:51ac1d130fd4 485 } else {
mbed_official 0:51ac1d130fd4 486 GETCHAR(msglen, inp);
mbed_official 0:51ac1d130fd4 487 if (msglen > 0) {
mbed_official 0:51ac1d130fd4 488 len -= sizeof (u_char);
mbed_official 0:51ac1d130fd4 489 if (len < msglen) {
mbed_official 0:51ac1d130fd4 490 UPAPDEBUG(LOG_INFO, ("pap_rauthack: rcvd short packet.\n"));
mbed_official 0:51ac1d130fd4 491 return;
mbed_official 0:51ac1d130fd4 492 }
mbed_official 0:51ac1d130fd4 493 msg = (char *) inp;
mbed_official 0:51ac1d130fd4 494 PRINTMSG(msg, msglen);
mbed_official 0:51ac1d130fd4 495 }
mbed_official 0:51ac1d130fd4 496 }
mbed_official 0:51ac1d130fd4 497 UNTIMEOUT(upap_timeout, u); /* Cancel timeout */
mbed_official 0:51ac1d130fd4 498 u->us_clientstate = UPAPCS_OPEN;
mbed_official 0:51ac1d130fd4 499
mbed_official 0:51ac1d130fd4 500 auth_withpeer_success(u->us_unit, PPP_PAP);
mbed_official 0:51ac1d130fd4 501 }
mbed_official 0:51ac1d130fd4 502
mbed_official 0:51ac1d130fd4 503
mbed_official 0:51ac1d130fd4 504 /*
mbed_official 0:51ac1d130fd4 505 * upap_rauthnak - Receive Authenticate-Nak.
mbed_official 0:51ac1d130fd4 506 */
mbed_official 0:51ac1d130fd4 507 static void
mbed_official 0:51ac1d130fd4 508 upap_rauthnak(upap_state *u, u_char *inp, int id, int len)
mbed_official 0:51ac1d130fd4 509 {
mbed_official 0:51ac1d130fd4 510 u_char msglen;
mbed_official 0:51ac1d130fd4 511 char *msg;
mbed_official 0:51ac1d130fd4 512
mbed_official 0:51ac1d130fd4 513 LWIP_UNUSED_ARG(id);
mbed_official 0:51ac1d130fd4 514
mbed_official 0:51ac1d130fd4 515 UPAPDEBUG(LOG_INFO, ("pap_rauthnak: Rcvd id %d s=%d\n", id, u->us_clientstate));
mbed_official 0:51ac1d130fd4 516
mbed_official 0:51ac1d130fd4 517 if (u->us_clientstate != UPAPCS_AUTHREQ) { /* XXX */
mbed_official 0:51ac1d130fd4 518 return;
mbed_official 0:51ac1d130fd4 519 }
mbed_official 0:51ac1d130fd4 520
mbed_official 0:51ac1d130fd4 521 /*
mbed_official 0:51ac1d130fd4 522 * Parse message.
mbed_official 0:51ac1d130fd4 523 */
mbed_official 0:51ac1d130fd4 524 if (len < sizeof (u_char)) {
mbed_official 0:51ac1d130fd4 525 UPAPDEBUG(LOG_INFO, ("pap_rauthnak: ignoring missing msg-length.\n"));
mbed_official 0:51ac1d130fd4 526 } else {
mbed_official 0:51ac1d130fd4 527 GETCHAR(msglen, inp);
mbed_official 0:51ac1d130fd4 528 if(msglen > 0) {
mbed_official 0:51ac1d130fd4 529 len -= sizeof (u_char);
mbed_official 0:51ac1d130fd4 530 if (len < msglen) {
mbed_official 0:51ac1d130fd4 531 UPAPDEBUG(LOG_INFO, ("pap_rauthnak: rcvd short packet.\n"));
mbed_official 0:51ac1d130fd4 532 return;
mbed_official 0:51ac1d130fd4 533 }
mbed_official 0:51ac1d130fd4 534 msg = (char *) inp;
mbed_official 0:51ac1d130fd4 535 PRINTMSG(msg, msglen);
mbed_official 0:51ac1d130fd4 536 }
mbed_official 0:51ac1d130fd4 537 }
mbed_official 0:51ac1d130fd4 538
mbed_official 0:51ac1d130fd4 539 u->us_clientstate = UPAPCS_BADAUTH;
mbed_official 0:51ac1d130fd4 540
mbed_official 0:51ac1d130fd4 541 UPAPDEBUG(LOG_ERR, ("PAP authentication failed\n"));
mbed_official 0:51ac1d130fd4 542 auth_withpeer_fail(u->us_unit, PPP_PAP);
mbed_official 0:51ac1d130fd4 543 }
mbed_official 0:51ac1d130fd4 544
mbed_official 0:51ac1d130fd4 545
mbed_official 0:51ac1d130fd4 546 /*
mbed_official 0:51ac1d130fd4 547 * upap_sauthreq - Send an Authenticate-Request.
mbed_official 0:51ac1d130fd4 548 */
mbed_official 0:51ac1d130fd4 549 static void
mbed_official 0:51ac1d130fd4 550 upap_sauthreq(upap_state *u)
mbed_official 0:51ac1d130fd4 551 {
mbed_official 0:51ac1d130fd4 552 u_char *outp;
mbed_official 0:51ac1d130fd4 553 int outlen;
mbed_official 0:51ac1d130fd4 554
mbed_official 0:51ac1d130fd4 555 outlen = UPAP_HEADERLEN + 2 * sizeof (u_char)
mbed_official 0:51ac1d130fd4 556 + u->us_userlen + u->us_passwdlen;
mbed_official 0:51ac1d130fd4 557 outp = outpacket_buf[u->us_unit];
mbed_official 0:51ac1d130fd4 558
mbed_official 0:51ac1d130fd4 559 MAKEHEADER(outp, PPP_PAP);
mbed_official 0:51ac1d130fd4 560
mbed_official 0:51ac1d130fd4 561 PUTCHAR(UPAP_AUTHREQ, outp);
mbed_official 0:51ac1d130fd4 562 PUTCHAR(++u->us_id, outp);
mbed_official 0:51ac1d130fd4 563 PUTSHORT(outlen, outp);
mbed_official 0:51ac1d130fd4 564 PUTCHAR(u->us_userlen, outp);
mbed_official 0:51ac1d130fd4 565 BCOPY(u->us_user, outp, u->us_userlen);
mbed_official 0:51ac1d130fd4 566 INCPTR(u->us_userlen, outp);
mbed_official 0:51ac1d130fd4 567 PUTCHAR(u->us_passwdlen, outp);
mbed_official 0:51ac1d130fd4 568 BCOPY(u->us_passwd, outp, u->us_passwdlen);
mbed_official 0:51ac1d130fd4 569
mbed_official 0:51ac1d130fd4 570 pppWrite(u->us_unit, outpacket_buf[u->us_unit], outlen + PPP_HDRLEN);
mbed_official 0:51ac1d130fd4 571
mbed_official 0:51ac1d130fd4 572 UPAPDEBUG(LOG_INFO, ("pap_sauth: Sent id %d\n", u->us_id));
mbed_official 0:51ac1d130fd4 573
mbed_official 0:51ac1d130fd4 574 TIMEOUT(upap_timeout, u, u->us_timeouttime);
mbed_official 0:51ac1d130fd4 575 ++u->us_transmits;
mbed_official 0:51ac1d130fd4 576 u->us_clientstate = UPAPCS_AUTHREQ;
mbed_official 0:51ac1d130fd4 577 }
mbed_official 0:51ac1d130fd4 578
mbed_official 0:51ac1d130fd4 579
mbed_official 0:51ac1d130fd4 580 /*
mbed_official 0:51ac1d130fd4 581 * upap_sresp - Send a response (ack or nak).
mbed_official 0:51ac1d130fd4 582 */
mbed_official 0:51ac1d130fd4 583 static void
mbed_official 0:51ac1d130fd4 584 upap_sresp(upap_state *u, u_char code, u_char id, char *msg, int msglen)
mbed_official 0:51ac1d130fd4 585 {
mbed_official 0:51ac1d130fd4 586 u_char *outp;
mbed_official 0:51ac1d130fd4 587 int outlen;
mbed_official 0:51ac1d130fd4 588
mbed_official 0:51ac1d130fd4 589 outlen = UPAP_HEADERLEN + sizeof (u_char) + msglen;
mbed_official 0:51ac1d130fd4 590 outp = outpacket_buf[u->us_unit];
mbed_official 0:51ac1d130fd4 591 MAKEHEADER(outp, PPP_PAP);
mbed_official 0:51ac1d130fd4 592
mbed_official 0:51ac1d130fd4 593 PUTCHAR(code, outp);
mbed_official 0:51ac1d130fd4 594 PUTCHAR(id, outp);
mbed_official 0:51ac1d130fd4 595 PUTSHORT(outlen, outp);
mbed_official 0:51ac1d130fd4 596 PUTCHAR(msglen, outp);
mbed_official 0:51ac1d130fd4 597 BCOPY(msg, outp, msglen);
mbed_official 0:51ac1d130fd4 598 pppWrite(u->us_unit, outpacket_buf[u->us_unit], outlen + PPP_HDRLEN);
mbed_official 0:51ac1d130fd4 599
mbed_official 0:51ac1d130fd4 600 UPAPDEBUG(LOG_INFO, ("pap_sresp: Sent code %d, id %d s=%d\n", code, id, u->us_clientstate));
mbed_official 0:51ac1d130fd4 601 }
mbed_official 0:51ac1d130fd4 602
mbed_official 0:51ac1d130fd4 603 #if PPP_ADDITIONAL_CALLBACKS
mbed_official 0:51ac1d130fd4 604 static char *upap_codenames[] = {
mbed_official 0:51ac1d130fd4 605 "AuthReq", "AuthAck", "AuthNak"
mbed_official 0:51ac1d130fd4 606 };
mbed_official 0:51ac1d130fd4 607
mbed_official 0:51ac1d130fd4 608 /*
mbed_official 0:51ac1d130fd4 609 * upap_printpkt - print the contents of a PAP packet.
mbed_official 0:51ac1d130fd4 610 */
mbed_official 0:51ac1d130fd4 611 static int upap_printpkt(
mbed_official 0:51ac1d130fd4 612 u_char *p,
mbed_official 0:51ac1d130fd4 613 int plen,
mbed_official 0:51ac1d130fd4 614 void (*printer) (void *, char *, ...),
mbed_official 0:51ac1d130fd4 615 void *arg
mbed_official 0:51ac1d130fd4 616 )
mbed_official 0:51ac1d130fd4 617 {
mbed_official 0:51ac1d130fd4 618 LWIP_UNUSED_ARG(p);
mbed_official 0:51ac1d130fd4 619 LWIP_UNUSED_ARG(plen);
mbed_official 0:51ac1d130fd4 620 LWIP_UNUSED_ARG(printer);
mbed_official 0:51ac1d130fd4 621 LWIP_UNUSED_ARG(arg);
mbed_official 0:51ac1d130fd4 622 return 0;
mbed_official 0:51ac1d130fd4 623 }
mbed_official 0:51ac1d130fd4 624 #endif /* PPP_ADDITIONAL_CALLBACKS */
mbed_official 0:51ac1d130fd4 625
mbed_official 0:51ac1d130fd4 626 #endif /* PAP_SUPPORT */
mbed_official 0:51ac1d130fd4 627
mbed_official 0:51ac1d130fd4 628 #endif /* PPP_SUPPORT */