Nino Der Kinderen / Mbed 2 deprecated InetTest

Embedded C project:18/12/2014

Dependencies:   DS1307 TextLCD mbed

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

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

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ninoderkinderen 0:8d87bc453349 1 /*****************************************************************************
ninoderkinderen 0:8d87bc453349 2 * ppp_oe.c - PPP Over Ethernet implementation for lwIP.
ninoderkinderen 0:8d87bc453349 3 *
ninoderkinderen 0:8d87bc453349 4 * Copyright (c) 2006 by Marc Boucher, Services Informatiques (MBSI) inc.
ninoderkinderen 0:8d87bc453349 5 *
ninoderkinderen 0:8d87bc453349 6 * The authors hereby grant permission to use, copy, modify, distribute,
ninoderkinderen 0:8d87bc453349 7 * and license this software and its documentation for any purpose, provided
ninoderkinderen 0:8d87bc453349 8 * that existing copyright notices are retained in all copies and that this
ninoderkinderen 0:8d87bc453349 9 * notice and the following disclaimer are included verbatim in any
ninoderkinderen 0:8d87bc453349 10 * distributions. No written agreement, license, or royalty fee is required
ninoderkinderen 0:8d87bc453349 11 * for any of the authorized uses.
ninoderkinderen 0:8d87bc453349 12 *
ninoderkinderen 0:8d87bc453349 13 * THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS *AS IS* AND ANY EXPRESS OR
ninoderkinderen 0:8d87bc453349 14 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
ninoderkinderen 0:8d87bc453349 15 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
ninoderkinderen 0:8d87bc453349 16 * IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
ninoderkinderen 0:8d87bc453349 17 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
ninoderkinderen 0:8d87bc453349 18 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
ninoderkinderen 0:8d87bc453349 19 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
ninoderkinderen 0:8d87bc453349 20 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
ninoderkinderen 0:8d87bc453349 21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
ninoderkinderen 0:8d87bc453349 22 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
ninoderkinderen 0:8d87bc453349 23 *
ninoderkinderen 0:8d87bc453349 24 ******************************************************************************
ninoderkinderen 0:8d87bc453349 25 * REVISION HISTORY
ninoderkinderen 0:8d87bc453349 26 *
ninoderkinderen 0:8d87bc453349 27 * 06-01-01 Marc Boucher <marc@mbsi.ca>
ninoderkinderen 0:8d87bc453349 28 * Ported to lwIP.
ninoderkinderen 0:8d87bc453349 29 *****************************************************************************/
ninoderkinderen 0:8d87bc453349 30
ninoderkinderen 0:8d87bc453349 31
ninoderkinderen 0:8d87bc453349 32
ninoderkinderen 0:8d87bc453349 33 /* based on NetBSD: if_pppoe.c,v 1.64 2006/01/31 23:50:15 martin Exp */
ninoderkinderen 0:8d87bc453349 34
ninoderkinderen 0:8d87bc453349 35 /*-
ninoderkinderen 0:8d87bc453349 36 * Copyright (c) 2002 The NetBSD Foundation, Inc.
ninoderkinderen 0:8d87bc453349 37 * All rights reserved.
ninoderkinderen 0:8d87bc453349 38 *
ninoderkinderen 0:8d87bc453349 39 * This code is derived from software contributed to The NetBSD Foundation
ninoderkinderen 0:8d87bc453349 40 * by Martin Husemann <martin@NetBSD.org>.
ninoderkinderen 0:8d87bc453349 41 *
ninoderkinderen 0:8d87bc453349 42 * Redistribution and use in source and binary forms, with or without
ninoderkinderen 0:8d87bc453349 43 * modification, are permitted provided that the following conditions
ninoderkinderen 0:8d87bc453349 44 * are met:
ninoderkinderen 0:8d87bc453349 45 * 1. Redistributions of source code must retain the above copyright
ninoderkinderen 0:8d87bc453349 46 * notice, this list of conditions and the following disclaimer.
ninoderkinderen 0:8d87bc453349 47 * 2. Redistributions in binary form must reproduce the above copyright
ninoderkinderen 0:8d87bc453349 48 * notice, this list of conditions and the following disclaimer in the
ninoderkinderen 0:8d87bc453349 49 * documentation and/or other materials provided with the distribution.
ninoderkinderen 0:8d87bc453349 50 * 3. All advertising materials mentioning features or use of this software
ninoderkinderen 0:8d87bc453349 51 * must display the following acknowledgement:
ninoderkinderen 0:8d87bc453349 52 * This product includes software developed by the NetBSD
ninoderkinderen 0:8d87bc453349 53 * Foundation, Inc. and its contributors.
ninoderkinderen 0:8d87bc453349 54 * 4. Neither the name of The NetBSD Foundation nor the names of its
ninoderkinderen 0:8d87bc453349 55 * contributors may be used to endorse or promote products derived
ninoderkinderen 0:8d87bc453349 56 * from this software without specific prior written permission.
ninoderkinderen 0:8d87bc453349 57 *
ninoderkinderen 0:8d87bc453349 58 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
ninoderkinderen 0:8d87bc453349 59 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
ninoderkinderen 0:8d87bc453349 60 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
ninoderkinderen 0:8d87bc453349 61 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
ninoderkinderen 0:8d87bc453349 62 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
ninoderkinderen 0:8d87bc453349 63 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
ninoderkinderen 0:8d87bc453349 64 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
ninoderkinderen 0:8d87bc453349 65 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
ninoderkinderen 0:8d87bc453349 66 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ninoderkinderen 0:8d87bc453349 67 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
ninoderkinderen 0:8d87bc453349 68 * POSSIBILITY OF SUCH DAMAGE.
ninoderkinderen 0:8d87bc453349 69 */
ninoderkinderen 0:8d87bc453349 70
ninoderkinderen 0:8d87bc453349 71 #include "lwip/opt.h"
ninoderkinderen 0:8d87bc453349 72
ninoderkinderen 0:8d87bc453349 73 #if PPPOE_SUPPORT /* don't build if not configured for use in lwipopts.h */
ninoderkinderen 0:8d87bc453349 74
ninoderkinderen 0:8d87bc453349 75 #include "netif/ppp_oe.h"
ninoderkinderen 0:8d87bc453349 76
ninoderkinderen 0:8d87bc453349 77 #include "ppp.h"
ninoderkinderen 0:8d87bc453349 78 #include "pppdebug.h"
ninoderkinderen 0:8d87bc453349 79
ninoderkinderen 0:8d87bc453349 80 #include "lwip/timers.h"
ninoderkinderen 0:8d87bc453349 81 #include "lwip/memp.h"
ninoderkinderen 0:8d87bc453349 82
ninoderkinderen 0:8d87bc453349 83 #include <string.h>
ninoderkinderen 0:8d87bc453349 84 #include <stdio.h>
ninoderkinderen 0:8d87bc453349 85
ninoderkinderen 0:8d87bc453349 86
ninoderkinderen 0:8d87bc453349 87 /* Add a 16 bit unsigned value to a buffer pointed to by PTR */
ninoderkinderen 0:8d87bc453349 88 #define PPPOE_ADD_16(PTR, VAL) \
ninoderkinderen 0:8d87bc453349 89 *(PTR)++ = (u8_t)((VAL) / 256); \
ninoderkinderen 0:8d87bc453349 90 *(PTR)++ = (u8_t)((VAL) % 256)
ninoderkinderen 0:8d87bc453349 91
ninoderkinderen 0:8d87bc453349 92 /* Add a complete PPPoE header to the buffer pointed to by PTR */
ninoderkinderen 0:8d87bc453349 93 #define PPPOE_ADD_HEADER(PTR, CODE, SESS, LEN) \
ninoderkinderen 0:8d87bc453349 94 *(PTR)++ = PPPOE_VERTYPE; \
ninoderkinderen 0:8d87bc453349 95 *(PTR)++ = (CODE); \
ninoderkinderen 0:8d87bc453349 96 PPPOE_ADD_16(PTR, SESS); \
ninoderkinderen 0:8d87bc453349 97 PPPOE_ADD_16(PTR, LEN)
ninoderkinderen 0:8d87bc453349 98
ninoderkinderen 0:8d87bc453349 99 #define PPPOE_DISC_TIMEOUT (5*1000) /* base for quick timeout calculation */
ninoderkinderen 0:8d87bc453349 100 #define PPPOE_SLOW_RETRY (60*1000) /* persistent retry interval */
ninoderkinderen 0:8d87bc453349 101 #define PPPOE_DISC_MAXPADI 4 /* retry PADI four times (quickly) */
ninoderkinderen 0:8d87bc453349 102 #define PPPOE_DISC_MAXPADR 2 /* retry PADR twice */
ninoderkinderen 0:8d87bc453349 103
ninoderkinderen 0:8d87bc453349 104 #ifdef PPPOE_SERVER
ninoderkinderen 0:8d87bc453349 105 #error "PPPOE_SERVER is not yet supported under lwIP!"
ninoderkinderen 0:8d87bc453349 106 /* from if_spppsubr.c */
ninoderkinderen 0:8d87bc453349 107 #define IFF_PASSIVE IFF_LINK0 /* wait passively for connection */
ninoderkinderen 0:8d87bc453349 108 #endif
ninoderkinderen 0:8d87bc453349 109
ninoderkinderen 0:8d87bc453349 110 #ifndef PPPOE_ERRORSTRING_LEN
ninoderkinderen 0:8d87bc453349 111 #define PPPOE_ERRORSTRING_LEN 64
ninoderkinderen 0:8d87bc453349 112 #endif
ninoderkinderen 0:8d87bc453349 113 static char pppoe_error_tmp[PPPOE_ERRORSTRING_LEN];
ninoderkinderen 0:8d87bc453349 114
ninoderkinderen 0:8d87bc453349 115
ninoderkinderen 0:8d87bc453349 116 /* input routines */
ninoderkinderen 0:8d87bc453349 117 static void pppoe_dispatch_disc_pkt(struct netif *, struct pbuf *);
ninoderkinderen 0:8d87bc453349 118
ninoderkinderen 0:8d87bc453349 119 /* management routines */
ninoderkinderen 0:8d87bc453349 120 static int pppoe_do_disconnect(struct pppoe_softc *);
ninoderkinderen 0:8d87bc453349 121 static void pppoe_abort_connect(struct pppoe_softc *);
ninoderkinderen 0:8d87bc453349 122 static void pppoe_clear_softc(struct pppoe_softc *, const char *);
ninoderkinderen 0:8d87bc453349 123
ninoderkinderen 0:8d87bc453349 124 /* internal timeout handling */
ninoderkinderen 0:8d87bc453349 125 static void pppoe_timeout(void *);
ninoderkinderen 0:8d87bc453349 126
ninoderkinderen 0:8d87bc453349 127 /* sending actual protocol controll packets */
ninoderkinderen 0:8d87bc453349 128 static err_t pppoe_send_padi(struct pppoe_softc *);
ninoderkinderen 0:8d87bc453349 129 static err_t pppoe_send_padr(struct pppoe_softc *);
ninoderkinderen 0:8d87bc453349 130 #ifdef PPPOE_SERVER
ninoderkinderen 0:8d87bc453349 131 static err_t pppoe_send_pado(struct pppoe_softc *);
ninoderkinderen 0:8d87bc453349 132 static err_t pppoe_send_pads(struct pppoe_softc *);
ninoderkinderen 0:8d87bc453349 133 #endif
ninoderkinderen 0:8d87bc453349 134 static err_t pppoe_send_padt(struct netif *, u_int, const u8_t *);
ninoderkinderen 0:8d87bc453349 135
ninoderkinderen 0:8d87bc453349 136 /* internal helper functions */
ninoderkinderen 0:8d87bc453349 137 static struct pppoe_softc * pppoe_find_softc_by_session(u_int, struct netif *);
ninoderkinderen 0:8d87bc453349 138 static struct pppoe_softc * pppoe_find_softc_by_hunique(u8_t *, size_t, struct netif *);
ninoderkinderen 0:8d87bc453349 139
ninoderkinderen 0:8d87bc453349 140 /** linked list of created pppoe interfaces */
ninoderkinderen 0:8d87bc453349 141 static struct pppoe_softc *pppoe_softc_list;
ninoderkinderen 0:8d87bc453349 142
ninoderkinderen 0:8d87bc453349 143 err_t
ninoderkinderen 0:8d87bc453349 144 pppoe_create(struct netif *ethif, int pd, void (*linkStatusCB)(int pd, int up), struct pppoe_softc **scptr)
ninoderkinderen 0:8d87bc453349 145 {
ninoderkinderen 0:8d87bc453349 146 struct pppoe_softc *sc;
ninoderkinderen 0:8d87bc453349 147
ninoderkinderen 0:8d87bc453349 148 sc = (struct pppoe_softc *)memp_malloc(MEMP_PPPOE_IF);
ninoderkinderen 0:8d87bc453349 149 if (sc == NULL) {
ninoderkinderen 0:8d87bc453349 150 *scptr = NULL;
ninoderkinderen 0:8d87bc453349 151 return ERR_MEM;
ninoderkinderen 0:8d87bc453349 152 }
ninoderkinderen 0:8d87bc453349 153 memset(sc, 0, sizeof(struct pppoe_softc));
ninoderkinderen 0:8d87bc453349 154
ninoderkinderen 0:8d87bc453349 155 /* changed to real address later */
ninoderkinderen 0:8d87bc453349 156 MEMCPY(&sc->sc_dest, ethbroadcast.addr, sizeof(sc->sc_dest));
ninoderkinderen 0:8d87bc453349 157
ninoderkinderen 0:8d87bc453349 158 sc->sc_pd = pd;
ninoderkinderen 0:8d87bc453349 159 sc->sc_linkStatusCB = linkStatusCB;
ninoderkinderen 0:8d87bc453349 160 sc->sc_ethif = ethif;
ninoderkinderen 0:8d87bc453349 161
ninoderkinderen 0:8d87bc453349 162 /* put the new interface at the head of the list */
ninoderkinderen 0:8d87bc453349 163 sc->next = pppoe_softc_list;
ninoderkinderen 0:8d87bc453349 164 pppoe_softc_list = sc;
ninoderkinderen 0:8d87bc453349 165
ninoderkinderen 0:8d87bc453349 166 *scptr = sc;
ninoderkinderen 0:8d87bc453349 167
ninoderkinderen 0:8d87bc453349 168 return ERR_OK;
ninoderkinderen 0:8d87bc453349 169 }
ninoderkinderen 0:8d87bc453349 170
ninoderkinderen 0:8d87bc453349 171 err_t
ninoderkinderen 0:8d87bc453349 172 pppoe_destroy(struct netif *ifp)
ninoderkinderen 0:8d87bc453349 173 {
ninoderkinderen 0:8d87bc453349 174 struct pppoe_softc *sc, *prev = NULL;
ninoderkinderen 0:8d87bc453349 175
ninoderkinderen 0:8d87bc453349 176 for (sc = pppoe_softc_list; sc != NULL; prev = sc, sc = sc->next) {
ninoderkinderen 0:8d87bc453349 177 if (sc->sc_ethif == ifp) {
ninoderkinderen 0:8d87bc453349 178 break;
ninoderkinderen 0:8d87bc453349 179 }
ninoderkinderen 0:8d87bc453349 180 }
ninoderkinderen 0:8d87bc453349 181
ninoderkinderen 0:8d87bc453349 182 if(!(sc && (sc->sc_ethif == ifp))) {
ninoderkinderen 0:8d87bc453349 183 return ERR_IF;
ninoderkinderen 0:8d87bc453349 184 }
ninoderkinderen 0:8d87bc453349 185
ninoderkinderen 0:8d87bc453349 186 sys_untimeout(pppoe_timeout, sc);
ninoderkinderen 0:8d87bc453349 187 if (prev == NULL) {
ninoderkinderen 0:8d87bc453349 188 /* remove sc from the head of the list */
ninoderkinderen 0:8d87bc453349 189 pppoe_softc_list = sc->next;
ninoderkinderen 0:8d87bc453349 190 } else {
ninoderkinderen 0:8d87bc453349 191 /* remove sc from the list */
ninoderkinderen 0:8d87bc453349 192 prev->next = sc->next;
ninoderkinderen 0:8d87bc453349 193 }
ninoderkinderen 0:8d87bc453349 194
ninoderkinderen 0:8d87bc453349 195 #ifdef PPPOE_TODO
ninoderkinderen 0:8d87bc453349 196 if (sc->sc_concentrator_name) {
ninoderkinderen 0:8d87bc453349 197 mem_free(sc->sc_concentrator_name);
ninoderkinderen 0:8d87bc453349 198 }
ninoderkinderen 0:8d87bc453349 199 if (sc->sc_service_name) {
ninoderkinderen 0:8d87bc453349 200 mem_free(sc->sc_service_name);
ninoderkinderen 0:8d87bc453349 201 }
ninoderkinderen 0:8d87bc453349 202 #endif /* PPPOE_TODO */
ninoderkinderen 0:8d87bc453349 203 memp_free(MEMP_PPPOE_IF, sc);
ninoderkinderen 0:8d87bc453349 204
ninoderkinderen 0:8d87bc453349 205 return ERR_OK;
ninoderkinderen 0:8d87bc453349 206 }
ninoderkinderen 0:8d87bc453349 207
ninoderkinderen 0:8d87bc453349 208 /*
ninoderkinderen 0:8d87bc453349 209 * Find the interface handling the specified session.
ninoderkinderen 0:8d87bc453349 210 * Note: O(number of sessions open), this is a client-side only, mean
ninoderkinderen 0:8d87bc453349 211 * and lean implementation, so number of open sessions typically should
ninoderkinderen 0:8d87bc453349 212 * be 1.
ninoderkinderen 0:8d87bc453349 213 */
ninoderkinderen 0:8d87bc453349 214 static struct pppoe_softc *
ninoderkinderen 0:8d87bc453349 215 pppoe_find_softc_by_session(u_int session, struct netif *rcvif)
ninoderkinderen 0:8d87bc453349 216 {
ninoderkinderen 0:8d87bc453349 217 struct pppoe_softc *sc;
ninoderkinderen 0:8d87bc453349 218
ninoderkinderen 0:8d87bc453349 219 if (session == 0) {
ninoderkinderen 0:8d87bc453349 220 return NULL;
ninoderkinderen 0:8d87bc453349 221 }
ninoderkinderen 0:8d87bc453349 222
ninoderkinderen 0:8d87bc453349 223 for (sc = pppoe_softc_list; sc != NULL; sc = sc->next) {
ninoderkinderen 0:8d87bc453349 224 if (sc->sc_state == PPPOE_STATE_SESSION
ninoderkinderen 0:8d87bc453349 225 && sc->sc_session == session) {
ninoderkinderen 0:8d87bc453349 226 if (sc->sc_ethif == rcvif) {
ninoderkinderen 0:8d87bc453349 227 return sc;
ninoderkinderen 0:8d87bc453349 228 } else {
ninoderkinderen 0:8d87bc453349 229 return NULL;
ninoderkinderen 0:8d87bc453349 230 }
ninoderkinderen 0:8d87bc453349 231 }
ninoderkinderen 0:8d87bc453349 232 }
ninoderkinderen 0:8d87bc453349 233 return NULL;
ninoderkinderen 0:8d87bc453349 234 }
ninoderkinderen 0:8d87bc453349 235
ninoderkinderen 0:8d87bc453349 236 /* Check host unique token passed and return appropriate softc pointer,
ninoderkinderen 0:8d87bc453349 237 * or NULL if token is bogus. */
ninoderkinderen 0:8d87bc453349 238 static struct pppoe_softc *
ninoderkinderen 0:8d87bc453349 239 pppoe_find_softc_by_hunique(u8_t *token, size_t len, struct netif *rcvif)
ninoderkinderen 0:8d87bc453349 240 {
ninoderkinderen 0:8d87bc453349 241 struct pppoe_softc *sc, *t;
ninoderkinderen 0:8d87bc453349 242
ninoderkinderen 0:8d87bc453349 243 if (pppoe_softc_list == NULL) {
ninoderkinderen 0:8d87bc453349 244 return NULL;
ninoderkinderen 0:8d87bc453349 245 }
ninoderkinderen 0:8d87bc453349 246
ninoderkinderen 0:8d87bc453349 247 if (len != sizeof sc) {
ninoderkinderen 0:8d87bc453349 248 return NULL;
ninoderkinderen 0:8d87bc453349 249 }
ninoderkinderen 0:8d87bc453349 250 MEMCPY(&t, token, len);
ninoderkinderen 0:8d87bc453349 251
ninoderkinderen 0:8d87bc453349 252 for (sc = pppoe_softc_list; sc != NULL; sc = sc->next) {
ninoderkinderen 0:8d87bc453349 253 if (sc == t) {
ninoderkinderen 0:8d87bc453349 254 break;
ninoderkinderen 0:8d87bc453349 255 }
ninoderkinderen 0:8d87bc453349 256 }
ninoderkinderen 0:8d87bc453349 257
ninoderkinderen 0:8d87bc453349 258 if (sc == NULL) {
ninoderkinderen 0:8d87bc453349 259 PPPDEBUG(LOG_DEBUG, ("pppoe: alien host unique tag, no session found\n"));
ninoderkinderen 0:8d87bc453349 260 return NULL;
ninoderkinderen 0:8d87bc453349 261 }
ninoderkinderen 0:8d87bc453349 262
ninoderkinderen 0:8d87bc453349 263 /* should be safe to access *sc now */
ninoderkinderen 0:8d87bc453349 264 if (sc->sc_state < PPPOE_STATE_PADI_SENT || sc->sc_state >= PPPOE_STATE_SESSION) {
ninoderkinderen 0:8d87bc453349 265 printf("%c%c%"U16_F": host unique tag found, but it belongs to a connection in state %d\n",
ninoderkinderen 0:8d87bc453349 266 sc->sc_ethif->name[0], sc->sc_ethif->name[1], sc->sc_ethif->num, sc->sc_state);
ninoderkinderen 0:8d87bc453349 267 return NULL;
ninoderkinderen 0:8d87bc453349 268 }
ninoderkinderen 0:8d87bc453349 269 if (sc->sc_ethif != rcvif) {
ninoderkinderen 0:8d87bc453349 270 printf("%c%c%"U16_F": wrong interface, not accepting host unique\n",
ninoderkinderen 0:8d87bc453349 271 sc->sc_ethif->name[0], sc->sc_ethif->name[1], sc->sc_ethif->num);
ninoderkinderen 0:8d87bc453349 272 return NULL;
ninoderkinderen 0:8d87bc453349 273 }
ninoderkinderen 0:8d87bc453349 274 return sc;
ninoderkinderen 0:8d87bc453349 275 }
ninoderkinderen 0:8d87bc453349 276
ninoderkinderen 0:8d87bc453349 277 static void
ninoderkinderen 0:8d87bc453349 278 pppoe_linkstatus_up(struct pppoe_softc *sc)
ninoderkinderen 0:8d87bc453349 279 {
ninoderkinderen 0:8d87bc453349 280 sc->sc_linkStatusCB(sc->sc_pd, 1);
ninoderkinderen 0:8d87bc453349 281 }
ninoderkinderen 0:8d87bc453349 282
ninoderkinderen 0:8d87bc453349 283 /* analyze and handle a single received packet while not in session state */
ninoderkinderen 0:8d87bc453349 284 static void
ninoderkinderen 0:8d87bc453349 285 pppoe_dispatch_disc_pkt(struct netif *netif, struct pbuf *pb)
ninoderkinderen 0:8d87bc453349 286 {
ninoderkinderen 0:8d87bc453349 287 u16_t tag, len;
ninoderkinderen 0:8d87bc453349 288 u16_t session, plen;
ninoderkinderen 0:8d87bc453349 289 struct pppoe_softc *sc;
ninoderkinderen 0:8d87bc453349 290 const char *err_msg;
ninoderkinderen 0:8d87bc453349 291 char devname[6];
ninoderkinderen 0:8d87bc453349 292 u8_t *ac_cookie;
ninoderkinderen 0:8d87bc453349 293 u16_t ac_cookie_len;
ninoderkinderen 0:8d87bc453349 294 #ifdef PPPOE_SERVER
ninoderkinderen 0:8d87bc453349 295 u8_t *hunique;
ninoderkinderen 0:8d87bc453349 296 size_t hunique_len;
ninoderkinderen 0:8d87bc453349 297 #endif
ninoderkinderen 0:8d87bc453349 298 struct pppoehdr *ph;
ninoderkinderen 0:8d87bc453349 299 struct pppoetag pt;
ninoderkinderen 0:8d87bc453349 300 int off, err, errortag;
ninoderkinderen 0:8d87bc453349 301 struct eth_hdr *ethhdr;
ninoderkinderen 0:8d87bc453349 302
ninoderkinderen 0:8d87bc453349 303 pb = pppSingleBuf(pb);
ninoderkinderen 0:8d87bc453349 304
ninoderkinderen 0:8d87bc453349 305 strcpy(devname, "pppoe"); /* as long as we don't know which instance */
ninoderkinderen 0:8d87bc453349 306 err_msg = NULL;
ninoderkinderen 0:8d87bc453349 307 errortag = 0;
ninoderkinderen 0:8d87bc453349 308 if (pb->len < sizeof(*ethhdr)) {
ninoderkinderen 0:8d87bc453349 309 goto done;
ninoderkinderen 0:8d87bc453349 310 }
ninoderkinderen 0:8d87bc453349 311 ethhdr = (struct eth_hdr *)pb->payload;
ninoderkinderen 0:8d87bc453349 312 off = sizeof(*ethhdr);
ninoderkinderen 0:8d87bc453349 313
ninoderkinderen 0:8d87bc453349 314 ac_cookie = NULL;
ninoderkinderen 0:8d87bc453349 315 ac_cookie_len = 0;
ninoderkinderen 0:8d87bc453349 316 #ifdef PPPOE_SERVER
ninoderkinderen 0:8d87bc453349 317 hunique = NULL;
ninoderkinderen 0:8d87bc453349 318 hunique_len = 0;
ninoderkinderen 0:8d87bc453349 319 #endif
ninoderkinderen 0:8d87bc453349 320 session = 0;
ninoderkinderen 0:8d87bc453349 321 if (pb->len - off < PPPOE_HEADERLEN) {
ninoderkinderen 0:8d87bc453349 322 printf("pppoe: packet too short: %d\n", pb->len);
ninoderkinderen 0:8d87bc453349 323 goto done;
ninoderkinderen 0:8d87bc453349 324 }
ninoderkinderen 0:8d87bc453349 325
ninoderkinderen 0:8d87bc453349 326 ph = (struct pppoehdr *) (ethhdr + 1);
ninoderkinderen 0:8d87bc453349 327 if (ph->vertype != PPPOE_VERTYPE) {
ninoderkinderen 0:8d87bc453349 328 printf("pppoe: unknown version/type packet: 0x%x\n", ph->vertype);
ninoderkinderen 0:8d87bc453349 329 goto done;
ninoderkinderen 0:8d87bc453349 330 }
ninoderkinderen 0:8d87bc453349 331 session = ntohs(ph->session);
ninoderkinderen 0:8d87bc453349 332 plen = ntohs(ph->plen);
ninoderkinderen 0:8d87bc453349 333 off += sizeof(*ph);
ninoderkinderen 0:8d87bc453349 334
ninoderkinderen 0:8d87bc453349 335 if (plen + off > pb->len) {
ninoderkinderen 0:8d87bc453349 336 printf("pppoe: packet content does not fit: data available = %d, packet size = %u\n",
ninoderkinderen 0:8d87bc453349 337 pb->len - off, plen);
ninoderkinderen 0:8d87bc453349 338 goto done;
ninoderkinderen 0:8d87bc453349 339 }
ninoderkinderen 0:8d87bc453349 340 if(pb->tot_len == pb->len) {
ninoderkinderen 0:8d87bc453349 341 pb->tot_len = pb->len = (u16_t)off + plen; /* ignore trailing garbage */
ninoderkinderen 0:8d87bc453349 342 }
ninoderkinderen 0:8d87bc453349 343 tag = 0;
ninoderkinderen 0:8d87bc453349 344 len = 0;
ninoderkinderen 0:8d87bc453349 345 sc = NULL;
ninoderkinderen 0:8d87bc453349 346 while (off + sizeof(pt) <= pb->len) {
ninoderkinderen 0:8d87bc453349 347 MEMCPY(&pt, (u8_t*)pb->payload + off, sizeof(pt));
ninoderkinderen 0:8d87bc453349 348 tag = ntohs(pt.tag);
ninoderkinderen 0:8d87bc453349 349 len = ntohs(pt.len);
ninoderkinderen 0:8d87bc453349 350 if (off + sizeof(pt) + len > pb->len) {
ninoderkinderen 0:8d87bc453349 351 printf("pppoe: tag 0x%x len 0x%x is too long\n", tag, len);
ninoderkinderen 0:8d87bc453349 352 goto done;
ninoderkinderen 0:8d87bc453349 353 }
ninoderkinderen 0:8d87bc453349 354 switch (tag) {
ninoderkinderen 0:8d87bc453349 355 case PPPOE_TAG_EOL:
ninoderkinderen 0:8d87bc453349 356 goto breakbreak;
ninoderkinderen 0:8d87bc453349 357 case PPPOE_TAG_SNAME:
ninoderkinderen 0:8d87bc453349 358 break; /* ignored */
ninoderkinderen 0:8d87bc453349 359 case PPPOE_TAG_ACNAME:
ninoderkinderen 0:8d87bc453349 360 break; /* ignored */
ninoderkinderen 0:8d87bc453349 361 case PPPOE_TAG_HUNIQUE:
ninoderkinderen 0:8d87bc453349 362 if (sc != NULL) {
ninoderkinderen 0:8d87bc453349 363 break;
ninoderkinderen 0:8d87bc453349 364 }
ninoderkinderen 0:8d87bc453349 365 #ifdef PPPOE_SERVER
ninoderkinderen 0:8d87bc453349 366 hunique = (u8_t*)pb->payload + off + sizeof(pt);
ninoderkinderen 0:8d87bc453349 367 hunique_len = len;
ninoderkinderen 0:8d87bc453349 368 #endif
ninoderkinderen 0:8d87bc453349 369 sc = pppoe_find_softc_by_hunique((u8_t*)pb->payload + off + sizeof(pt), len, netif);
ninoderkinderen 0:8d87bc453349 370 if (sc != NULL) {
ninoderkinderen 0:8d87bc453349 371 snprintf(devname, sizeof(devname), "%c%c%"U16_F, sc->sc_ethif->name[0], sc->sc_ethif->name[1], sc->sc_ethif->num);
ninoderkinderen 0:8d87bc453349 372 }
ninoderkinderen 0:8d87bc453349 373 break;
ninoderkinderen 0:8d87bc453349 374 case PPPOE_TAG_ACCOOKIE:
ninoderkinderen 0:8d87bc453349 375 if (ac_cookie == NULL) {
ninoderkinderen 0:8d87bc453349 376 ac_cookie = (u8_t*)pb->payload + off + sizeof(pt);
ninoderkinderen 0:8d87bc453349 377 ac_cookie_len = len;
ninoderkinderen 0:8d87bc453349 378 }
ninoderkinderen 0:8d87bc453349 379 break;
ninoderkinderen 0:8d87bc453349 380 case PPPOE_TAG_SNAME_ERR:
ninoderkinderen 0:8d87bc453349 381 err_msg = "SERVICE NAME ERROR";
ninoderkinderen 0:8d87bc453349 382 errortag = 1;
ninoderkinderen 0:8d87bc453349 383 break;
ninoderkinderen 0:8d87bc453349 384 case PPPOE_TAG_ACSYS_ERR:
ninoderkinderen 0:8d87bc453349 385 err_msg = "AC SYSTEM ERROR";
ninoderkinderen 0:8d87bc453349 386 errortag = 1;
ninoderkinderen 0:8d87bc453349 387 break;
ninoderkinderen 0:8d87bc453349 388 case PPPOE_TAG_GENERIC_ERR:
ninoderkinderen 0:8d87bc453349 389 err_msg = "GENERIC ERROR";
ninoderkinderen 0:8d87bc453349 390 errortag = 1;
ninoderkinderen 0:8d87bc453349 391 break;
ninoderkinderen 0:8d87bc453349 392 }
ninoderkinderen 0:8d87bc453349 393 if (err_msg) {
ninoderkinderen 0:8d87bc453349 394 if (errortag && len) {
ninoderkinderen 0:8d87bc453349 395 u16_t error_len = LWIP_MIN(len, sizeof(pppoe_error_tmp)-1);
ninoderkinderen 0:8d87bc453349 396 strncpy(pppoe_error_tmp, (char*)pb->payload + off + sizeof(pt), error_len);
ninoderkinderen 0:8d87bc453349 397 pppoe_error_tmp[error_len-1] = '\0';
ninoderkinderen 0:8d87bc453349 398 printf("%s: %s: %s\n", devname, err_msg, pppoe_error_tmp);
ninoderkinderen 0:8d87bc453349 399 } else {
ninoderkinderen 0:8d87bc453349 400 printf("%s: %s\n", devname, err_msg);
ninoderkinderen 0:8d87bc453349 401 }
ninoderkinderen 0:8d87bc453349 402 if (errortag) {
ninoderkinderen 0:8d87bc453349 403 goto done;
ninoderkinderen 0:8d87bc453349 404 }
ninoderkinderen 0:8d87bc453349 405 }
ninoderkinderen 0:8d87bc453349 406 off += sizeof(pt) + len;
ninoderkinderen 0:8d87bc453349 407 }
ninoderkinderen 0:8d87bc453349 408
ninoderkinderen 0:8d87bc453349 409 breakbreak:;
ninoderkinderen 0:8d87bc453349 410 switch (ph->code) {
ninoderkinderen 0:8d87bc453349 411 case PPPOE_CODE_PADI:
ninoderkinderen 0:8d87bc453349 412 #ifdef PPPOE_SERVER
ninoderkinderen 0:8d87bc453349 413 /*
ninoderkinderen 0:8d87bc453349 414 * got service name, concentrator name, and/or host unique.
ninoderkinderen 0:8d87bc453349 415 * ignore if we have no interfaces with IFF_PASSIVE|IFF_UP.
ninoderkinderen 0:8d87bc453349 416 */
ninoderkinderen 0:8d87bc453349 417 if (LIST_EMPTY(&pppoe_softc_list)) {
ninoderkinderen 0:8d87bc453349 418 goto done;
ninoderkinderen 0:8d87bc453349 419 }
ninoderkinderen 0:8d87bc453349 420 LIST_FOREACH(sc, &pppoe_softc_list, sc_list) {
ninoderkinderen 0:8d87bc453349 421 if (!(sc->sc_sppp.pp_if.if_flags & IFF_UP)) {
ninoderkinderen 0:8d87bc453349 422 continue;
ninoderkinderen 0:8d87bc453349 423 }
ninoderkinderen 0:8d87bc453349 424 if (!(sc->sc_sppp.pp_if.if_flags & IFF_PASSIVE)) {
ninoderkinderen 0:8d87bc453349 425 continue;
ninoderkinderen 0:8d87bc453349 426 }
ninoderkinderen 0:8d87bc453349 427 if (sc->sc_state == PPPOE_STATE_INITIAL) {
ninoderkinderen 0:8d87bc453349 428 break;
ninoderkinderen 0:8d87bc453349 429 }
ninoderkinderen 0:8d87bc453349 430 }
ninoderkinderen 0:8d87bc453349 431 if (sc == NULL) {
ninoderkinderen 0:8d87bc453349 432 /* printf("pppoe: free passive interface is not found\n"); */
ninoderkinderen 0:8d87bc453349 433 goto done;
ninoderkinderen 0:8d87bc453349 434 }
ninoderkinderen 0:8d87bc453349 435 if (hunique) {
ninoderkinderen 0:8d87bc453349 436 if (sc->sc_hunique) {
ninoderkinderen 0:8d87bc453349 437 mem_free(sc->sc_hunique);
ninoderkinderen 0:8d87bc453349 438 }
ninoderkinderen 0:8d87bc453349 439 sc->sc_hunique = mem_malloc(hunique_len);
ninoderkinderen 0:8d87bc453349 440 if (sc->sc_hunique == NULL) {
ninoderkinderen 0:8d87bc453349 441 goto done;
ninoderkinderen 0:8d87bc453349 442 }
ninoderkinderen 0:8d87bc453349 443 sc->sc_hunique_len = hunique_len;
ninoderkinderen 0:8d87bc453349 444 MEMCPY(sc->sc_hunique, hunique, hunique_len);
ninoderkinderen 0:8d87bc453349 445 }
ninoderkinderen 0:8d87bc453349 446 MEMCPY(&sc->sc_dest, eh->ether_shost, sizeof sc->sc_dest);
ninoderkinderen 0:8d87bc453349 447 sc->sc_state = PPPOE_STATE_PADO_SENT;
ninoderkinderen 0:8d87bc453349 448 pppoe_send_pado(sc);
ninoderkinderen 0:8d87bc453349 449 break;
ninoderkinderen 0:8d87bc453349 450 #endif /* PPPOE_SERVER */
ninoderkinderen 0:8d87bc453349 451 case PPPOE_CODE_PADR:
ninoderkinderen 0:8d87bc453349 452 #ifdef PPPOE_SERVER
ninoderkinderen 0:8d87bc453349 453 /*
ninoderkinderen 0:8d87bc453349 454 * get sc from ac_cookie if IFF_PASSIVE
ninoderkinderen 0:8d87bc453349 455 */
ninoderkinderen 0:8d87bc453349 456 if (ac_cookie == NULL) {
ninoderkinderen 0:8d87bc453349 457 /* be quiet if there is not a single pppoe instance */
ninoderkinderen 0:8d87bc453349 458 printf("pppoe: received PADR but not includes ac_cookie\n");
ninoderkinderen 0:8d87bc453349 459 goto done;
ninoderkinderen 0:8d87bc453349 460 }
ninoderkinderen 0:8d87bc453349 461 sc = pppoe_find_softc_by_hunique(ac_cookie, ac_cookie_len, netif);
ninoderkinderen 0:8d87bc453349 462 if (sc == NULL) {
ninoderkinderen 0:8d87bc453349 463 /* be quiet if there is not a single pppoe instance */
ninoderkinderen 0:8d87bc453349 464 if (!LIST_EMPTY(&pppoe_softc_list)) {
ninoderkinderen 0:8d87bc453349 465 printf("pppoe: received PADR but could not find request for it\n");
ninoderkinderen 0:8d87bc453349 466 }
ninoderkinderen 0:8d87bc453349 467 goto done;
ninoderkinderen 0:8d87bc453349 468 }
ninoderkinderen 0:8d87bc453349 469 if (sc->sc_state != PPPOE_STATE_PADO_SENT) {
ninoderkinderen 0:8d87bc453349 470 printf("%c%c%"U16_F": received unexpected PADR\n", sc->sc_ethif->name[0], sc->sc_ethif->name[1], sc->sc_ethif->num);
ninoderkinderen 0:8d87bc453349 471 goto done;
ninoderkinderen 0:8d87bc453349 472 }
ninoderkinderen 0:8d87bc453349 473 if (hunique) {
ninoderkinderen 0:8d87bc453349 474 if (sc->sc_hunique) {
ninoderkinderen 0:8d87bc453349 475 mem_free(sc->sc_hunique);
ninoderkinderen 0:8d87bc453349 476 }
ninoderkinderen 0:8d87bc453349 477 sc->sc_hunique = mem_malloc(hunique_len);
ninoderkinderen 0:8d87bc453349 478 if (sc->sc_hunique == NULL) {
ninoderkinderen 0:8d87bc453349 479 goto done;
ninoderkinderen 0:8d87bc453349 480 }
ninoderkinderen 0:8d87bc453349 481 sc->sc_hunique_len = hunique_len;
ninoderkinderen 0:8d87bc453349 482 MEMCPY(sc->sc_hunique, hunique, hunique_len);
ninoderkinderen 0:8d87bc453349 483 }
ninoderkinderen 0:8d87bc453349 484 pppoe_send_pads(sc);
ninoderkinderen 0:8d87bc453349 485 sc->sc_state = PPPOE_STATE_SESSION;
ninoderkinderen 0:8d87bc453349 486 pppoe_linkstatus_up(sc); /* notify upper layers */
ninoderkinderen 0:8d87bc453349 487 break;
ninoderkinderen 0:8d87bc453349 488 #else
ninoderkinderen 0:8d87bc453349 489 /* ignore, we are no access concentrator */
ninoderkinderen 0:8d87bc453349 490 goto done;
ninoderkinderen 0:8d87bc453349 491 #endif /* PPPOE_SERVER */
ninoderkinderen 0:8d87bc453349 492 case PPPOE_CODE_PADO:
ninoderkinderen 0:8d87bc453349 493 if (sc == NULL) {
ninoderkinderen 0:8d87bc453349 494 /* be quiet if there is not a single pppoe instance */
ninoderkinderen 0:8d87bc453349 495 if (pppoe_softc_list != NULL) {
ninoderkinderen 0:8d87bc453349 496 printf("pppoe: received PADO but could not find request for it\n");
ninoderkinderen 0:8d87bc453349 497 }
ninoderkinderen 0:8d87bc453349 498 goto done;
ninoderkinderen 0:8d87bc453349 499 }
ninoderkinderen 0:8d87bc453349 500 if (sc->sc_state != PPPOE_STATE_PADI_SENT) {
ninoderkinderen 0:8d87bc453349 501 printf("%c%c%"U16_F": received unexpected PADO\n", sc->sc_ethif->name[0], sc->sc_ethif->name[1], sc->sc_ethif->num);
ninoderkinderen 0:8d87bc453349 502 goto done;
ninoderkinderen 0:8d87bc453349 503 }
ninoderkinderen 0:8d87bc453349 504 if (ac_cookie) {
ninoderkinderen 0:8d87bc453349 505 sc->sc_ac_cookie_len = ac_cookie_len;
ninoderkinderen 0:8d87bc453349 506 MEMCPY(sc->sc_ac_cookie, ac_cookie, ac_cookie_len);
ninoderkinderen 0:8d87bc453349 507 }
ninoderkinderen 0:8d87bc453349 508 MEMCPY(&sc->sc_dest, ethhdr->src.addr, sizeof(sc->sc_dest.addr));
ninoderkinderen 0:8d87bc453349 509 sys_untimeout(pppoe_timeout, sc);
ninoderkinderen 0:8d87bc453349 510 sc->sc_padr_retried = 0;
ninoderkinderen 0:8d87bc453349 511 sc->sc_state = PPPOE_STATE_PADR_SENT;
ninoderkinderen 0:8d87bc453349 512 if ((err = pppoe_send_padr(sc)) != 0) {
ninoderkinderen 0:8d87bc453349 513 PPPDEBUG(LOG_DEBUG, ("pppoe: %c%c%"U16_F": failed to send PADR, error=%d\n", sc->sc_ethif->name[0], sc->sc_ethif->name[1], sc->sc_ethif->num, err));
ninoderkinderen 0:8d87bc453349 514 }
ninoderkinderen 0:8d87bc453349 515 sys_timeout(PPPOE_DISC_TIMEOUT * (1 + sc->sc_padr_retried), pppoe_timeout, sc);
ninoderkinderen 0:8d87bc453349 516 break;
ninoderkinderen 0:8d87bc453349 517 case PPPOE_CODE_PADS:
ninoderkinderen 0:8d87bc453349 518 if (sc == NULL) {
ninoderkinderen 0:8d87bc453349 519 goto done;
ninoderkinderen 0:8d87bc453349 520 }
ninoderkinderen 0:8d87bc453349 521 sc->sc_session = session;
ninoderkinderen 0:8d87bc453349 522 sys_untimeout(pppoe_timeout, sc);
ninoderkinderen 0:8d87bc453349 523 PPPDEBUG(LOG_DEBUG, ("pppoe: %c%c%"U16_F": session 0x%x connected\n", sc->sc_ethif->name[0], sc->sc_ethif->name[1], sc->sc_ethif->num, session));
ninoderkinderen 0:8d87bc453349 524 sc->sc_state = PPPOE_STATE_SESSION;
ninoderkinderen 0:8d87bc453349 525 pppoe_linkstatus_up(sc); /* notify upper layers */
ninoderkinderen 0:8d87bc453349 526 break;
ninoderkinderen 0:8d87bc453349 527 case PPPOE_CODE_PADT:
ninoderkinderen 0:8d87bc453349 528 if (sc == NULL) {
ninoderkinderen 0:8d87bc453349 529 goto done;
ninoderkinderen 0:8d87bc453349 530 }
ninoderkinderen 0:8d87bc453349 531 pppoe_clear_softc(sc, "received PADT");
ninoderkinderen 0:8d87bc453349 532 break;
ninoderkinderen 0:8d87bc453349 533 default:
ninoderkinderen 0:8d87bc453349 534 if(sc) {
ninoderkinderen 0:8d87bc453349 535 printf("%c%c%"U16_F": unknown code (0x%"X16_F") session = 0x%"X16_F"\n",
ninoderkinderen 0:8d87bc453349 536 sc->sc_ethif->name[0], sc->sc_ethif->name[1], sc->sc_ethif->num,
ninoderkinderen 0:8d87bc453349 537 (u16_t)ph->code, session);
ninoderkinderen 0:8d87bc453349 538 } else {
ninoderkinderen 0:8d87bc453349 539 printf("pppoe: unknown code (0x%"X16_F") session = 0x%"X16_F"\n", (u16_t)ph->code, session);
ninoderkinderen 0:8d87bc453349 540 }
ninoderkinderen 0:8d87bc453349 541 break;
ninoderkinderen 0:8d87bc453349 542 }
ninoderkinderen 0:8d87bc453349 543
ninoderkinderen 0:8d87bc453349 544 done:
ninoderkinderen 0:8d87bc453349 545 pbuf_free(pb);
ninoderkinderen 0:8d87bc453349 546 return;
ninoderkinderen 0:8d87bc453349 547 }
ninoderkinderen 0:8d87bc453349 548
ninoderkinderen 0:8d87bc453349 549 void
ninoderkinderen 0:8d87bc453349 550 pppoe_disc_input(struct netif *netif, struct pbuf *p)
ninoderkinderen 0:8d87bc453349 551 {
ninoderkinderen 0:8d87bc453349 552 /* avoid error messages if there is not a single pppoe instance */
ninoderkinderen 0:8d87bc453349 553 if (pppoe_softc_list != NULL) {
ninoderkinderen 0:8d87bc453349 554 pppoe_dispatch_disc_pkt(netif, p);
ninoderkinderen 0:8d87bc453349 555 } else {
ninoderkinderen 0:8d87bc453349 556 pbuf_free(p);
ninoderkinderen 0:8d87bc453349 557 }
ninoderkinderen 0:8d87bc453349 558 }
ninoderkinderen 0:8d87bc453349 559
ninoderkinderen 0:8d87bc453349 560 void
ninoderkinderen 0:8d87bc453349 561 pppoe_data_input(struct netif *netif, struct pbuf *pb)
ninoderkinderen 0:8d87bc453349 562 {
ninoderkinderen 0:8d87bc453349 563 u16_t session, plen;
ninoderkinderen 0:8d87bc453349 564 struct pppoe_softc *sc;
ninoderkinderen 0:8d87bc453349 565 struct pppoehdr *ph;
ninoderkinderen 0:8d87bc453349 566 #ifdef PPPOE_TERM_UNKNOWN_SESSIONS
ninoderkinderen 0:8d87bc453349 567 u8_t shost[ETHER_ADDR_LEN];
ninoderkinderen 0:8d87bc453349 568 #endif
ninoderkinderen 0:8d87bc453349 569
ninoderkinderen 0:8d87bc453349 570 #ifdef PPPOE_TERM_UNKNOWN_SESSIONS
ninoderkinderen 0:8d87bc453349 571 MEMCPY(shost, ((struct eth_hdr *)pb->payload)->src.addr, sizeof(shost));
ninoderkinderen 0:8d87bc453349 572 #endif
ninoderkinderen 0:8d87bc453349 573 if (pbuf_header(pb, -(int)sizeof(struct eth_hdr)) != 0) {
ninoderkinderen 0:8d87bc453349 574 /* bail out */
ninoderkinderen 0:8d87bc453349 575 PPPDEBUG(LOG_ERR, ("pppoe_data_input: pbuf_header failed\n"));
ninoderkinderen 0:8d87bc453349 576 LINK_STATS_INC(link.lenerr);
ninoderkinderen 0:8d87bc453349 577 goto drop;
ninoderkinderen 0:8d87bc453349 578 }
ninoderkinderen 0:8d87bc453349 579
ninoderkinderen 0:8d87bc453349 580 pb = pppSingleBuf (pb);
ninoderkinderen 0:8d87bc453349 581
ninoderkinderen 0:8d87bc453349 582 if (pb->len <= PPPOE_HEADERLEN) {
ninoderkinderen 0:8d87bc453349 583 printf("pppoe (data): dropping too short packet: %d bytes\n", pb->len);
ninoderkinderen 0:8d87bc453349 584 goto drop;
ninoderkinderen 0:8d87bc453349 585 }
ninoderkinderen 0:8d87bc453349 586
ninoderkinderen 0:8d87bc453349 587 if (pb->len < sizeof(*ph)) {
ninoderkinderen 0:8d87bc453349 588 printf("pppoe_data_input: could not get PPPoE header\n");
ninoderkinderen 0:8d87bc453349 589 goto drop;
ninoderkinderen 0:8d87bc453349 590 }
ninoderkinderen 0:8d87bc453349 591 ph = (struct pppoehdr *)pb->payload;
ninoderkinderen 0:8d87bc453349 592
ninoderkinderen 0:8d87bc453349 593 if (ph->vertype != PPPOE_VERTYPE) {
ninoderkinderen 0:8d87bc453349 594 printf("pppoe (data): unknown version/type packet: 0x%x\n", ph->vertype);
ninoderkinderen 0:8d87bc453349 595 goto drop;
ninoderkinderen 0:8d87bc453349 596 }
ninoderkinderen 0:8d87bc453349 597 if (ph->code != 0) {
ninoderkinderen 0:8d87bc453349 598 goto drop;
ninoderkinderen 0:8d87bc453349 599 }
ninoderkinderen 0:8d87bc453349 600
ninoderkinderen 0:8d87bc453349 601 session = ntohs(ph->session);
ninoderkinderen 0:8d87bc453349 602 sc = pppoe_find_softc_by_session(session, netif);
ninoderkinderen 0:8d87bc453349 603 if (sc == NULL) {
ninoderkinderen 0:8d87bc453349 604 #ifdef PPPOE_TERM_UNKNOWN_SESSIONS
ninoderkinderen 0:8d87bc453349 605 printf("pppoe: input for unknown session 0x%x, sending PADT\n", session);
ninoderkinderen 0:8d87bc453349 606 pppoe_send_padt(netif, session, shost);
ninoderkinderen 0:8d87bc453349 607 #endif
ninoderkinderen 0:8d87bc453349 608 goto drop;
ninoderkinderen 0:8d87bc453349 609 }
ninoderkinderen 0:8d87bc453349 610
ninoderkinderen 0:8d87bc453349 611 plen = ntohs(ph->plen);
ninoderkinderen 0:8d87bc453349 612
ninoderkinderen 0:8d87bc453349 613 if (pbuf_header(pb, -(int)(PPPOE_HEADERLEN)) != 0) {
ninoderkinderen 0:8d87bc453349 614 /* bail out */
ninoderkinderen 0:8d87bc453349 615 PPPDEBUG(LOG_ERR, ("pppoe_data_input: pbuf_header PPPOE_HEADERLEN failed\n"));
ninoderkinderen 0:8d87bc453349 616 LINK_STATS_INC(link.lenerr);
ninoderkinderen 0:8d87bc453349 617 goto drop;
ninoderkinderen 0:8d87bc453349 618 }
ninoderkinderen 0:8d87bc453349 619
ninoderkinderen 0:8d87bc453349 620 PPPDEBUG(LOG_DEBUG, ("pppoe_data_input: %c%c%"U16_F": pkthdr.len=%d, pppoe.len=%d\n",
ninoderkinderen 0:8d87bc453349 621 sc->sc_ethif->name[0], sc->sc_ethif->name[1], sc->sc_ethif->num,
ninoderkinderen 0:8d87bc453349 622 pb->len, plen));
ninoderkinderen 0:8d87bc453349 623
ninoderkinderen 0:8d87bc453349 624 if (pb->len < plen) {
ninoderkinderen 0:8d87bc453349 625 goto drop;
ninoderkinderen 0:8d87bc453349 626 }
ninoderkinderen 0:8d87bc453349 627
ninoderkinderen 0:8d87bc453349 628 pppInProcOverEthernet(sc->sc_pd, pb);
ninoderkinderen 0:8d87bc453349 629
ninoderkinderen 0:8d87bc453349 630 return;
ninoderkinderen 0:8d87bc453349 631
ninoderkinderen 0:8d87bc453349 632 drop:
ninoderkinderen 0:8d87bc453349 633 pbuf_free(pb);
ninoderkinderen 0:8d87bc453349 634 }
ninoderkinderen 0:8d87bc453349 635
ninoderkinderen 0:8d87bc453349 636 static err_t
ninoderkinderen 0:8d87bc453349 637 pppoe_output(struct pppoe_softc *sc, struct pbuf *pb)
ninoderkinderen 0:8d87bc453349 638 {
ninoderkinderen 0:8d87bc453349 639 struct eth_hdr *ethhdr;
ninoderkinderen 0:8d87bc453349 640 u16_t etype;
ninoderkinderen 0:8d87bc453349 641 err_t res;
ninoderkinderen 0:8d87bc453349 642
ninoderkinderen 0:8d87bc453349 643 if (!sc->sc_ethif) {
ninoderkinderen 0:8d87bc453349 644 pbuf_free(pb);
ninoderkinderen 0:8d87bc453349 645 return ERR_IF;
ninoderkinderen 0:8d87bc453349 646 }
ninoderkinderen 0:8d87bc453349 647
ninoderkinderen 0:8d87bc453349 648 ethhdr = (struct eth_hdr *)pb->payload;
ninoderkinderen 0:8d87bc453349 649 etype = sc->sc_state == PPPOE_STATE_SESSION ? ETHTYPE_PPPOE : ETHTYPE_PPPOEDISC;
ninoderkinderen 0:8d87bc453349 650 ethhdr->type = htons(etype);
ninoderkinderen 0:8d87bc453349 651 MEMCPY(ethhdr->dest.addr, sc->sc_dest.addr, sizeof(ethhdr->dest.addr));
ninoderkinderen 0:8d87bc453349 652 MEMCPY(ethhdr->src.addr, ((struct eth_addr *)sc->sc_ethif->hwaddr)->addr, sizeof(ethhdr->src.addr));
ninoderkinderen 0:8d87bc453349 653
ninoderkinderen 0:8d87bc453349 654 PPPDEBUG(LOG_DEBUG, ("pppoe: %c%c%"U16_F" (%x) state=%d, session=0x%x output -> %02"X16_F":%02"X16_F":%02"X16_F":%02"X16_F":%02"X16_F":%02"X16_F", len=%d\n",
ninoderkinderen 0:8d87bc453349 655 sc->sc_ethif->name[0], sc->sc_ethif->name[1], sc->sc_ethif->num, etype,
ninoderkinderen 0:8d87bc453349 656 sc->sc_state, sc->sc_session,
ninoderkinderen 0:8d87bc453349 657 sc->sc_dest.addr[0], sc->sc_dest.addr[1], sc->sc_dest.addr[2], sc->sc_dest.addr[3], sc->sc_dest.addr[4], sc->sc_dest.addr[5],
ninoderkinderen 0:8d87bc453349 658 pb->tot_len));
ninoderkinderen 0:8d87bc453349 659
ninoderkinderen 0:8d87bc453349 660 res = sc->sc_ethif->linkoutput(sc->sc_ethif, pb);
ninoderkinderen 0:8d87bc453349 661
ninoderkinderen 0:8d87bc453349 662 pbuf_free(pb);
ninoderkinderen 0:8d87bc453349 663
ninoderkinderen 0:8d87bc453349 664 return res;
ninoderkinderen 0:8d87bc453349 665 }
ninoderkinderen 0:8d87bc453349 666
ninoderkinderen 0:8d87bc453349 667 static err_t
ninoderkinderen 0:8d87bc453349 668 pppoe_send_padi(struct pppoe_softc *sc)
ninoderkinderen 0:8d87bc453349 669 {
ninoderkinderen 0:8d87bc453349 670 struct pbuf *pb;
ninoderkinderen 0:8d87bc453349 671 u8_t *p;
ninoderkinderen 0:8d87bc453349 672 int len;
ninoderkinderen 0:8d87bc453349 673 #ifdef PPPOE_TODO
ninoderkinderen 0:8d87bc453349 674 int l1 = 0, l2 = 0; /* XXX: gcc */
ninoderkinderen 0:8d87bc453349 675 #endif /* PPPOE_TODO */
ninoderkinderen 0:8d87bc453349 676
ninoderkinderen 0:8d87bc453349 677 if (sc->sc_state >PPPOE_STATE_PADI_SENT) {
ninoderkinderen 0:8d87bc453349 678 PPPDEBUG(LOG_ERR, ("ERROR: pppoe_send_padi in state %d", sc->sc_state));
ninoderkinderen 0:8d87bc453349 679 }
ninoderkinderen 0:8d87bc453349 680
ninoderkinderen 0:8d87bc453349 681 /* calculate length of frame (excluding ethernet header + pppoe header) */
ninoderkinderen 0:8d87bc453349 682 len = 2 + 2 + 2 + 2 + sizeof sc; /* service name tag is required, host unique is send too */
ninoderkinderen 0:8d87bc453349 683 #ifdef PPPOE_TODO
ninoderkinderen 0:8d87bc453349 684 if (sc->sc_service_name != NULL) {
ninoderkinderen 0:8d87bc453349 685 l1 = (int)strlen(sc->sc_service_name);
ninoderkinderen 0:8d87bc453349 686 len += l1;
ninoderkinderen 0:8d87bc453349 687 }
ninoderkinderen 0:8d87bc453349 688 if (sc->sc_concentrator_name != NULL) {
ninoderkinderen 0:8d87bc453349 689 l2 = (int)strlen(sc->sc_concentrator_name);
ninoderkinderen 0:8d87bc453349 690 len += 2 + 2 + l2;
ninoderkinderen 0:8d87bc453349 691 }
ninoderkinderen 0:8d87bc453349 692 #endif /* PPPOE_TODO */
ninoderkinderen 0:8d87bc453349 693 LWIP_ASSERT("sizeof(struct eth_hdr) + PPPOE_HEADERLEN + len <= 0xffff",
ninoderkinderen 0:8d87bc453349 694 sizeof(struct eth_hdr) + PPPOE_HEADERLEN + len <= 0xffff);
ninoderkinderen 0:8d87bc453349 695
ninoderkinderen 0:8d87bc453349 696 /* allocate a buffer */
ninoderkinderen 0:8d87bc453349 697 pb = pbuf_alloc(PBUF_LINK, (u16_t)(sizeof(struct eth_hdr) + PPPOE_HEADERLEN + len), PBUF_RAM);
ninoderkinderen 0:8d87bc453349 698 if (!pb) {
ninoderkinderen 0:8d87bc453349 699 return ERR_MEM;
ninoderkinderen 0:8d87bc453349 700 }
ninoderkinderen 0:8d87bc453349 701 LWIP_ASSERT("pb->tot_len == pb->len", pb->tot_len == pb->len);
ninoderkinderen 0:8d87bc453349 702
ninoderkinderen 0:8d87bc453349 703 p = (u8_t*)pb->payload + sizeof (struct eth_hdr);
ninoderkinderen 0:8d87bc453349 704 /* fill in pkt */
ninoderkinderen 0:8d87bc453349 705 PPPOE_ADD_HEADER(p, PPPOE_CODE_PADI, 0, (u16_t)len);
ninoderkinderen 0:8d87bc453349 706 PPPOE_ADD_16(p, PPPOE_TAG_SNAME);
ninoderkinderen 0:8d87bc453349 707 #ifdef PPPOE_TODO
ninoderkinderen 0:8d87bc453349 708 if (sc->sc_service_name != NULL) {
ninoderkinderen 0:8d87bc453349 709 PPPOE_ADD_16(p, l1);
ninoderkinderen 0:8d87bc453349 710 MEMCPY(p, sc->sc_service_name, l1);
ninoderkinderen 0:8d87bc453349 711 p += l1;
ninoderkinderen 0:8d87bc453349 712 } else
ninoderkinderen 0:8d87bc453349 713 #endif /* PPPOE_TODO */
ninoderkinderen 0:8d87bc453349 714 {
ninoderkinderen 0:8d87bc453349 715 PPPOE_ADD_16(p, 0);
ninoderkinderen 0:8d87bc453349 716 }
ninoderkinderen 0:8d87bc453349 717 #ifdef PPPOE_TODO
ninoderkinderen 0:8d87bc453349 718 if (sc->sc_concentrator_name != NULL) {
ninoderkinderen 0:8d87bc453349 719 PPPOE_ADD_16(p, PPPOE_TAG_ACNAME);
ninoderkinderen 0:8d87bc453349 720 PPPOE_ADD_16(p, l2);
ninoderkinderen 0:8d87bc453349 721 MEMCPY(p, sc->sc_concentrator_name, l2);
ninoderkinderen 0:8d87bc453349 722 p += l2;
ninoderkinderen 0:8d87bc453349 723 }
ninoderkinderen 0:8d87bc453349 724 #endif /* PPPOE_TODO */
ninoderkinderen 0:8d87bc453349 725 PPPOE_ADD_16(p, PPPOE_TAG_HUNIQUE);
ninoderkinderen 0:8d87bc453349 726 PPPOE_ADD_16(p, sizeof(sc));
ninoderkinderen 0:8d87bc453349 727 MEMCPY(p, &sc, sizeof sc);
ninoderkinderen 0:8d87bc453349 728
ninoderkinderen 0:8d87bc453349 729 /* send pkt */
ninoderkinderen 0:8d87bc453349 730 return pppoe_output(sc, pb);
ninoderkinderen 0:8d87bc453349 731 }
ninoderkinderen 0:8d87bc453349 732
ninoderkinderen 0:8d87bc453349 733 static void
ninoderkinderen 0:8d87bc453349 734 pppoe_timeout(void *arg)
ninoderkinderen 0:8d87bc453349 735 {
ninoderkinderen 0:8d87bc453349 736 int retry_wait, err;
ninoderkinderen 0:8d87bc453349 737 struct pppoe_softc *sc = (struct pppoe_softc*)arg;
ninoderkinderen 0:8d87bc453349 738
ninoderkinderen 0:8d87bc453349 739 PPPDEBUG(LOG_DEBUG, ("pppoe: %c%c%"U16_F": timeout\n", sc->sc_ethif->name[0], sc->sc_ethif->name[1], sc->sc_ethif->num));
ninoderkinderen 0:8d87bc453349 740
ninoderkinderen 0:8d87bc453349 741 switch (sc->sc_state) {
ninoderkinderen 0:8d87bc453349 742 case PPPOE_STATE_PADI_SENT:
ninoderkinderen 0:8d87bc453349 743 /*
ninoderkinderen 0:8d87bc453349 744 * We have two basic ways of retrying:
ninoderkinderen 0:8d87bc453349 745 * - Quick retry mode: try a few times in short sequence
ninoderkinderen 0:8d87bc453349 746 * - Slow retry mode: we already had a connection successfully
ninoderkinderen 0:8d87bc453349 747 * established and will try infinitely (without user
ninoderkinderen 0:8d87bc453349 748 * intervention)
ninoderkinderen 0:8d87bc453349 749 * We only enter slow retry mode if IFF_LINK1 (aka autodial)
ninoderkinderen 0:8d87bc453349 750 * is not set.
ninoderkinderen 0:8d87bc453349 751 */
ninoderkinderen 0:8d87bc453349 752
ninoderkinderen 0:8d87bc453349 753 /* initialize for quick retry mode */
ninoderkinderen 0:8d87bc453349 754 retry_wait = PPPOE_DISC_TIMEOUT * (1 + sc->sc_padi_retried);
ninoderkinderen 0:8d87bc453349 755
ninoderkinderen 0:8d87bc453349 756 sc->sc_padi_retried++;
ninoderkinderen 0:8d87bc453349 757 if (sc->sc_padi_retried >= PPPOE_DISC_MAXPADI) {
ninoderkinderen 0:8d87bc453349 758 #if 0
ninoderkinderen 0:8d87bc453349 759 if ((sc->sc_sppp.pp_if.if_flags & IFF_LINK1) == 0) {
ninoderkinderen 0:8d87bc453349 760 /* slow retry mode */
ninoderkinderen 0:8d87bc453349 761 retry_wait = PPPOE_SLOW_RETRY;
ninoderkinderen 0:8d87bc453349 762 } else
ninoderkinderen 0:8d87bc453349 763 #endif
ninoderkinderen 0:8d87bc453349 764 {
ninoderkinderen 0:8d87bc453349 765 pppoe_abort_connect(sc);
ninoderkinderen 0:8d87bc453349 766 return;
ninoderkinderen 0:8d87bc453349 767 }
ninoderkinderen 0:8d87bc453349 768 }
ninoderkinderen 0:8d87bc453349 769 if ((err = pppoe_send_padi(sc)) != 0) {
ninoderkinderen 0:8d87bc453349 770 sc->sc_padi_retried--;
ninoderkinderen 0:8d87bc453349 771 PPPDEBUG(LOG_DEBUG, ("pppoe: %c%c%"U16_F": failed to transmit PADI, error=%d\n", sc->sc_ethif->name[0], sc->sc_ethif->name[1], sc->sc_ethif->num, err));
ninoderkinderen 0:8d87bc453349 772 }
ninoderkinderen 0:8d87bc453349 773 sys_timeout(retry_wait, pppoe_timeout, sc);
ninoderkinderen 0:8d87bc453349 774 break;
ninoderkinderen 0:8d87bc453349 775
ninoderkinderen 0:8d87bc453349 776 case PPPOE_STATE_PADR_SENT:
ninoderkinderen 0:8d87bc453349 777 sc->sc_padr_retried++;
ninoderkinderen 0:8d87bc453349 778 if (sc->sc_padr_retried >= PPPOE_DISC_MAXPADR) {
ninoderkinderen 0:8d87bc453349 779 MEMCPY(&sc->sc_dest, ethbroadcast.addr, sizeof(sc->sc_dest));
ninoderkinderen 0:8d87bc453349 780 sc->sc_state = PPPOE_STATE_PADI_SENT;
ninoderkinderen 0:8d87bc453349 781 sc->sc_padr_retried = 0;
ninoderkinderen 0:8d87bc453349 782 if ((err = pppoe_send_padi(sc)) != 0) {
ninoderkinderen 0:8d87bc453349 783 PPPDEBUG(LOG_DEBUG, ("pppoe: %c%c%"U16_F": failed to send PADI, error=%d\n", sc->sc_ethif->name[0], sc->sc_ethif->name[1], sc->sc_ethif->num, err));
ninoderkinderen 0:8d87bc453349 784 }
ninoderkinderen 0:8d87bc453349 785 sys_timeout(PPPOE_DISC_TIMEOUT * (1 + sc->sc_padi_retried), pppoe_timeout, sc);
ninoderkinderen 0:8d87bc453349 786 return;
ninoderkinderen 0:8d87bc453349 787 }
ninoderkinderen 0:8d87bc453349 788 if ((err = pppoe_send_padr(sc)) != 0) {
ninoderkinderen 0:8d87bc453349 789 sc->sc_padr_retried--;
ninoderkinderen 0:8d87bc453349 790 PPPDEBUG(LOG_DEBUG, ("pppoe: %c%c%"U16_F": failed to send PADR, error=%d\n", sc->sc_ethif->name[0], sc->sc_ethif->name[1], sc->sc_ethif->num, err));
ninoderkinderen 0:8d87bc453349 791 }
ninoderkinderen 0:8d87bc453349 792 sys_timeout(PPPOE_DISC_TIMEOUT * (1 + sc->sc_padr_retried), pppoe_timeout, sc);
ninoderkinderen 0:8d87bc453349 793 break;
ninoderkinderen 0:8d87bc453349 794 case PPPOE_STATE_CLOSING:
ninoderkinderen 0:8d87bc453349 795 pppoe_do_disconnect(sc);
ninoderkinderen 0:8d87bc453349 796 break;
ninoderkinderen 0:8d87bc453349 797 default:
ninoderkinderen 0:8d87bc453349 798 return; /* all done, work in peace */
ninoderkinderen 0:8d87bc453349 799 }
ninoderkinderen 0:8d87bc453349 800 }
ninoderkinderen 0:8d87bc453349 801
ninoderkinderen 0:8d87bc453349 802 /* Start a connection (i.e. initiate discovery phase) */
ninoderkinderen 0:8d87bc453349 803 int
ninoderkinderen 0:8d87bc453349 804 pppoe_connect(struct pppoe_softc *sc)
ninoderkinderen 0:8d87bc453349 805 {
ninoderkinderen 0:8d87bc453349 806 int err;
ninoderkinderen 0:8d87bc453349 807
ninoderkinderen 0:8d87bc453349 808 if (sc->sc_state != PPPOE_STATE_INITIAL) {
ninoderkinderen 0:8d87bc453349 809 return EBUSY;
ninoderkinderen 0:8d87bc453349 810 }
ninoderkinderen 0:8d87bc453349 811
ninoderkinderen 0:8d87bc453349 812 #ifdef PPPOE_SERVER
ninoderkinderen 0:8d87bc453349 813 /* wait PADI if IFF_PASSIVE */
ninoderkinderen 0:8d87bc453349 814 if ((sc->sc_sppp.pp_if.if_flags & IFF_PASSIVE)) {
ninoderkinderen 0:8d87bc453349 815 return 0;
ninoderkinderen 0:8d87bc453349 816 }
ninoderkinderen 0:8d87bc453349 817 #endif
ninoderkinderen 0:8d87bc453349 818 /* save state, in case we fail to send PADI */
ninoderkinderen 0:8d87bc453349 819 sc->sc_state = PPPOE_STATE_PADI_SENT;
ninoderkinderen 0:8d87bc453349 820 sc->sc_padr_retried = 0;
ninoderkinderen 0:8d87bc453349 821 err = pppoe_send_padi(sc);
ninoderkinderen 0:8d87bc453349 822 PPPDEBUG(LOG_DEBUG, ("pppoe: %c%c%"U16_F": failed to send PADI, error=%d\n", sc->sc_ethif->name[0], sc->sc_ethif->name[1], sc->sc_ethif->num, err));
ninoderkinderen 0:8d87bc453349 823 sys_timeout(PPPOE_DISC_TIMEOUT, pppoe_timeout, sc);
ninoderkinderen 0:8d87bc453349 824 return err;
ninoderkinderen 0:8d87bc453349 825 }
ninoderkinderen 0:8d87bc453349 826
ninoderkinderen 0:8d87bc453349 827 /* disconnect */
ninoderkinderen 0:8d87bc453349 828 void
ninoderkinderen 0:8d87bc453349 829 pppoe_disconnect(struct pppoe_softc *sc)
ninoderkinderen 0:8d87bc453349 830 {
ninoderkinderen 0:8d87bc453349 831 if (sc->sc_state < PPPOE_STATE_SESSION) {
ninoderkinderen 0:8d87bc453349 832 return;
ninoderkinderen 0:8d87bc453349 833 }
ninoderkinderen 0:8d87bc453349 834 /*
ninoderkinderen 0:8d87bc453349 835 * Do not call pppoe_disconnect here, the upper layer state
ninoderkinderen 0:8d87bc453349 836 * machine gets confused by this. We must return from this
ninoderkinderen 0:8d87bc453349 837 * function and defer disconnecting to the timeout handler.
ninoderkinderen 0:8d87bc453349 838 */
ninoderkinderen 0:8d87bc453349 839 sc->sc_state = PPPOE_STATE_CLOSING;
ninoderkinderen 0:8d87bc453349 840 sys_timeout(20, pppoe_timeout, sc);
ninoderkinderen 0:8d87bc453349 841 }
ninoderkinderen 0:8d87bc453349 842
ninoderkinderen 0:8d87bc453349 843 static int
ninoderkinderen 0:8d87bc453349 844 pppoe_do_disconnect(struct pppoe_softc *sc)
ninoderkinderen 0:8d87bc453349 845 {
ninoderkinderen 0:8d87bc453349 846 int err;
ninoderkinderen 0:8d87bc453349 847
ninoderkinderen 0:8d87bc453349 848 if (sc->sc_state < PPPOE_STATE_SESSION) {
ninoderkinderen 0:8d87bc453349 849 err = EBUSY;
ninoderkinderen 0:8d87bc453349 850 } else {
ninoderkinderen 0:8d87bc453349 851 PPPDEBUG(LOG_DEBUG, ("pppoe: %c%c%"U16_F": disconnecting\n", sc->sc_ethif->name[0], sc->sc_ethif->name[1], sc->sc_ethif->num));
ninoderkinderen 0:8d87bc453349 852 err = pppoe_send_padt(sc->sc_ethif, sc->sc_session, (const u8_t *)&sc->sc_dest);
ninoderkinderen 0:8d87bc453349 853 }
ninoderkinderen 0:8d87bc453349 854
ninoderkinderen 0:8d87bc453349 855 /* cleanup softc */
ninoderkinderen 0:8d87bc453349 856 sc->sc_state = PPPOE_STATE_INITIAL;
ninoderkinderen 0:8d87bc453349 857 MEMCPY(&sc->sc_dest, ethbroadcast.addr, sizeof(sc->sc_dest));
ninoderkinderen 0:8d87bc453349 858 sc->sc_ac_cookie_len = 0;
ninoderkinderen 0:8d87bc453349 859 #ifdef PPPOE_SERVER
ninoderkinderen 0:8d87bc453349 860 if (sc->sc_hunique) {
ninoderkinderen 0:8d87bc453349 861 mem_free(sc->sc_hunique);
ninoderkinderen 0:8d87bc453349 862 sc->sc_hunique = NULL;
ninoderkinderen 0:8d87bc453349 863 }
ninoderkinderen 0:8d87bc453349 864 sc->sc_hunique_len = 0;
ninoderkinderen 0:8d87bc453349 865 #endif
ninoderkinderen 0:8d87bc453349 866 sc->sc_session = 0;
ninoderkinderen 0:8d87bc453349 867
ninoderkinderen 0:8d87bc453349 868 sc->sc_linkStatusCB(sc->sc_pd, 0); /* notify upper layers */
ninoderkinderen 0:8d87bc453349 869
ninoderkinderen 0:8d87bc453349 870 return err;
ninoderkinderen 0:8d87bc453349 871 }
ninoderkinderen 0:8d87bc453349 872
ninoderkinderen 0:8d87bc453349 873 /* Connection attempt aborted */
ninoderkinderen 0:8d87bc453349 874 static void
ninoderkinderen 0:8d87bc453349 875 pppoe_abort_connect(struct pppoe_softc *sc)
ninoderkinderen 0:8d87bc453349 876 {
ninoderkinderen 0:8d87bc453349 877 printf("%c%c%"U16_F": could not establish connection\n", sc->sc_ethif->name[0], sc->sc_ethif->name[1], sc->sc_ethif->num);
ninoderkinderen 0:8d87bc453349 878 sc->sc_state = PPPOE_STATE_CLOSING;
ninoderkinderen 0:8d87bc453349 879
ninoderkinderen 0:8d87bc453349 880 sc->sc_linkStatusCB(sc->sc_pd, 0); /* notify upper layers */
ninoderkinderen 0:8d87bc453349 881
ninoderkinderen 0:8d87bc453349 882 /* clear connection state */
ninoderkinderen 0:8d87bc453349 883 MEMCPY(&sc->sc_dest, ethbroadcast.addr, sizeof(sc->sc_dest));
ninoderkinderen 0:8d87bc453349 884 sc->sc_state = PPPOE_STATE_INITIAL;
ninoderkinderen 0:8d87bc453349 885 }
ninoderkinderen 0:8d87bc453349 886
ninoderkinderen 0:8d87bc453349 887 /* Send a PADR packet */
ninoderkinderen 0:8d87bc453349 888 static err_t
ninoderkinderen 0:8d87bc453349 889 pppoe_send_padr(struct pppoe_softc *sc)
ninoderkinderen 0:8d87bc453349 890 {
ninoderkinderen 0:8d87bc453349 891 struct pbuf *pb;
ninoderkinderen 0:8d87bc453349 892 u8_t *p;
ninoderkinderen 0:8d87bc453349 893 size_t len;
ninoderkinderen 0:8d87bc453349 894 #ifdef PPPOE_TODO
ninoderkinderen 0:8d87bc453349 895 size_t l1 = 0; /* XXX: gcc */
ninoderkinderen 0:8d87bc453349 896 #endif /* PPPOE_TODO */
ninoderkinderen 0:8d87bc453349 897
ninoderkinderen 0:8d87bc453349 898 if (sc->sc_state != PPPOE_STATE_PADR_SENT) {
ninoderkinderen 0:8d87bc453349 899 return ERR_CONN;
ninoderkinderen 0:8d87bc453349 900 }
ninoderkinderen 0:8d87bc453349 901
ninoderkinderen 0:8d87bc453349 902 len = 2 + 2 + 2 + 2 + sizeof(sc); /* service name, host unique */
ninoderkinderen 0:8d87bc453349 903 #ifdef PPPOE_TODO
ninoderkinderen 0:8d87bc453349 904 if (sc->sc_service_name != NULL) { /* service name tag maybe empty */
ninoderkinderen 0:8d87bc453349 905 l1 = strlen(sc->sc_service_name);
ninoderkinderen 0:8d87bc453349 906 len += l1;
ninoderkinderen 0:8d87bc453349 907 }
ninoderkinderen 0:8d87bc453349 908 #endif /* PPPOE_TODO */
ninoderkinderen 0:8d87bc453349 909 if (sc->sc_ac_cookie_len > 0) {
ninoderkinderen 0:8d87bc453349 910 len += 2 + 2 + sc->sc_ac_cookie_len; /* AC cookie */
ninoderkinderen 0:8d87bc453349 911 }
ninoderkinderen 0:8d87bc453349 912 LWIP_ASSERT("sizeof(struct eth_hdr) + PPPOE_HEADERLEN + len <= 0xffff",
ninoderkinderen 0:8d87bc453349 913 sizeof(struct eth_hdr) + PPPOE_HEADERLEN + len <= 0xffff);
ninoderkinderen 0:8d87bc453349 914 pb = pbuf_alloc(PBUF_LINK, (u16_t)(sizeof(struct eth_hdr) + PPPOE_HEADERLEN + len), PBUF_RAM);
ninoderkinderen 0:8d87bc453349 915 if (!pb) {
ninoderkinderen 0:8d87bc453349 916 return ERR_MEM;
ninoderkinderen 0:8d87bc453349 917 }
ninoderkinderen 0:8d87bc453349 918 LWIP_ASSERT("pb->tot_len == pb->len", pb->tot_len == pb->len);
ninoderkinderen 0:8d87bc453349 919 p = (u8_t*)pb->payload + sizeof (struct eth_hdr);
ninoderkinderen 0:8d87bc453349 920 PPPOE_ADD_HEADER(p, PPPOE_CODE_PADR, 0, len);
ninoderkinderen 0:8d87bc453349 921 PPPOE_ADD_16(p, PPPOE_TAG_SNAME);
ninoderkinderen 0:8d87bc453349 922 #ifdef PPPOE_TODO
ninoderkinderen 0:8d87bc453349 923 if (sc->sc_service_name != NULL) {
ninoderkinderen 0:8d87bc453349 924 PPPOE_ADD_16(p, l1);
ninoderkinderen 0:8d87bc453349 925 MEMCPY(p, sc->sc_service_name, l1);
ninoderkinderen 0:8d87bc453349 926 p += l1;
ninoderkinderen 0:8d87bc453349 927 } else
ninoderkinderen 0:8d87bc453349 928 #endif /* PPPOE_TODO */
ninoderkinderen 0:8d87bc453349 929 {
ninoderkinderen 0:8d87bc453349 930 PPPOE_ADD_16(p, 0);
ninoderkinderen 0:8d87bc453349 931 }
ninoderkinderen 0:8d87bc453349 932 if (sc->sc_ac_cookie_len > 0) {
ninoderkinderen 0:8d87bc453349 933 PPPOE_ADD_16(p, PPPOE_TAG_ACCOOKIE);
ninoderkinderen 0:8d87bc453349 934 PPPOE_ADD_16(p, sc->sc_ac_cookie_len);
ninoderkinderen 0:8d87bc453349 935 MEMCPY(p, sc->sc_ac_cookie, sc->sc_ac_cookie_len);
ninoderkinderen 0:8d87bc453349 936 p += sc->sc_ac_cookie_len;
ninoderkinderen 0:8d87bc453349 937 }
ninoderkinderen 0:8d87bc453349 938 PPPOE_ADD_16(p, PPPOE_TAG_HUNIQUE);
ninoderkinderen 0:8d87bc453349 939 PPPOE_ADD_16(p, sizeof(sc));
ninoderkinderen 0:8d87bc453349 940 MEMCPY(p, &sc, sizeof sc);
ninoderkinderen 0:8d87bc453349 941
ninoderkinderen 0:8d87bc453349 942 return pppoe_output(sc, pb);
ninoderkinderen 0:8d87bc453349 943 }
ninoderkinderen 0:8d87bc453349 944
ninoderkinderen 0:8d87bc453349 945 /* send a PADT packet */
ninoderkinderen 0:8d87bc453349 946 static err_t
ninoderkinderen 0:8d87bc453349 947 pppoe_send_padt(struct netif *outgoing_if, u_int session, const u8_t *dest)
ninoderkinderen 0:8d87bc453349 948 {
ninoderkinderen 0:8d87bc453349 949 struct pbuf *pb;
ninoderkinderen 0:8d87bc453349 950 struct eth_hdr *ethhdr;
ninoderkinderen 0:8d87bc453349 951 err_t res;
ninoderkinderen 0:8d87bc453349 952 u8_t *p;
ninoderkinderen 0:8d87bc453349 953
ninoderkinderen 0:8d87bc453349 954 pb = pbuf_alloc(PBUF_LINK, sizeof(struct eth_hdr) + PPPOE_HEADERLEN, PBUF_RAM);
ninoderkinderen 0:8d87bc453349 955 if (!pb) {
ninoderkinderen 0:8d87bc453349 956 return ERR_MEM;
ninoderkinderen 0:8d87bc453349 957 }
ninoderkinderen 0:8d87bc453349 958 LWIP_ASSERT("pb->tot_len == pb->len", pb->tot_len == pb->len);
ninoderkinderen 0:8d87bc453349 959
ninoderkinderen 0:8d87bc453349 960 ethhdr = (struct eth_hdr *)pb->payload;
ninoderkinderen 0:8d87bc453349 961 ethhdr->type = PP_HTONS(ETHTYPE_PPPOEDISC);
ninoderkinderen 0:8d87bc453349 962 MEMCPY(ethhdr->dest.addr, dest, sizeof(ethhdr->dest.addr));
ninoderkinderen 0:8d87bc453349 963 MEMCPY(ethhdr->src.addr, ((struct eth_addr *)outgoing_if->hwaddr)->addr, sizeof(ethhdr->src.addr));
ninoderkinderen 0:8d87bc453349 964
ninoderkinderen 0:8d87bc453349 965 p = (u8_t*)(ethhdr + 1);
ninoderkinderen 0:8d87bc453349 966 PPPOE_ADD_HEADER(p, PPPOE_CODE_PADT, session, 0);
ninoderkinderen 0:8d87bc453349 967
ninoderkinderen 0:8d87bc453349 968 res = outgoing_if->linkoutput(outgoing_if, pb);
ninoderkinderen 0:8d87bc453349 969
ninoderkinderen 0:8d87bc453349 970 pbuf_free(pb);
ninoderkinderen 0:8d87bc453349 971
ninoderkinderen 0:8d87bc453349 972 return res;
ninoderkinderen 0:8d87bc453349 973 }
ninoderkinderen 0:8d87bc453349 974
ninoderkinderen 0:8d87bc453349 975 #ifdef PPPOE_SERVER
ninoderkinderen 0:8d87bc453349 976 static err_t
ninoderkinderen 0:8d87bc453349 977 pppoe_send_pado(struct pppoe_softc *sc)
ninoderkinderen 0:8d87bc453349 978 {
ninoderkinderen 0:8d87bc453349 979 struct pbuf *pb;
ninoderkinderen 0:8d87bc453349 980 u8_t *p;
ninoderkinderen 0:8d87bc453349 981 size_t len;
ninoderkinderen 0:8d87bc453349 982
ninoderkinderen 0:8d87bc453349 983 if (sc->sc_state != PPPOE_STATE_PADO_SENT) {
ninoderkinderen 0:8d87bc453349 984 return ERR_CONN;
ninoderkinderen 0:8d87bc453349 985 }
ninoderkinderen 0:8d87bc453349 986
ninoderkinderen 0:8d87bc453349 987 /* calc length */
ninoderkinderen 0:8d87bc453349 988 len = 0;
ninoderkinderen 0:8d87bc453349 989 /* include ac_cookie */
ninoderkinderen 0:8d87bc453349 990 len += 2 + 2 + sizeof(sc);
ninoderkinderen 0:8d87bc453349 991 /* include hunique */
ninoderkinderen 0:8d87bc453349 992 len += 2 + 2 + sc->sc_hunique_len;
ninoderkinderen 0:8d87bc453349 993 pb = pbuf_alloc(PBUF_LINK, sizeof(struct eth_hdr) + PPPOE_HEADERLEN + len, PBUF_RAM);
ninoderkinderen 0:8d87bc453349 994 if (!pb) {
ninoderkinderen 0:8d87bc453349 995 return ERR_MEM;
ninoderkinderen 0:8d87bc453349 996 }
ninoderkinderen 0:8d87bc453349 997 LWIP_ASSERT("pb->tot_len == pb->len", pb->tot_len == pb->len);
ninoderkinderen 0:8d87bc453349 998 p = (u8_t*)pb->payload + sizeof (struct eth_hdr);
ninoderkinderen 0:8d87bc453349 999 PPPOE_ADD_HEADER(p, PPPOE_CODE_PADO, 0, len);
ninoderkinderen 0:8d87bc453349 1000 PPPOE_ADD_16(p, PPPOE_TAG_ACCOOKIE);
ninoderkinderen 0:8d87bc453349 1001 PPPOE_ADD_16(p, sizeof(sc));
ninoderkinderen 0:8d87bc453349 1002 MEMCPY(p, &sc, sizeof(sc));
ninoderkinderen 0:8d87bc453349 1003 p += sizeof(sc);
ninoderkinderen 0:8d87bc453349 1004 PPPOE_ADD_16(p, PPPOE_TAG_HUNIQUE);
ninoderkinderen 0:8d87bc453349 1005 PPPOE_ADD_16(p, sc->sc_hunique_len);
ninoderkinderen 0:8d87bc453349 1006 MEMCPY(p, sc->sc_hunique, sc->sc_hunique_len);
ninoderkinderen 0:8d87bc453349 1007 return pppoe_output(sc, pb);
ninoderkinderen 0:8d87bc453349 1008 }
ninoderkinderen 0:8d87bc453349 1009
ninoderkinderen 0:8d87bc453349 1010 static err_t
ninoderkinderen 0:8d87bc453349 1011 pppoe_send_pads(struct pppoe_softc *sc)
ninoderkinderen 0:8d87bc453349 1012 {
ninoderkinderen 0:8d87bc453349 1013 struct pbuf *pb;
ninoderkinderen 0:8d87bc453349 1014 u8_t *p;
ninoderkinderen 0:8d87bc453349 1015 size_t len, l1 = 0; /* XXX: gcc */
ninoderkinderen 0:8d87bc453349 1016
ninoderkinderen 0:8d87bc453349 1017 if (sc->sc_state != PPPOE_STATE_PADO_SENT) {
ninoderkinderen 0:8d87bc453349 1018 return ERR_CONN;
ninoderkinderen 0:8d87bc453349 1019 }
ninoderkinderen 0:8d87bc453349 1020
ninoderkinderen 0:8d87bc453349 1021 sc->sc_session = mono_time.tv_sec % 0xff + 1;
ninoderkinderen 0:8d87bc453349 1022 /* calc length */
ninoderkinderen 0:8d87bc453349 1023 len = 0;
ninoderkinderen 0:8d87bc453349 1024 /* include hunique */
ninoderkinderen 0:8d87bc453349 1025 len += 2 + 2 + 2 + 2 + sc->sc_hunique_len; /* service name, host unique*/
ninoderkinderen 0:8d87bc453349 1026 if (sc->sc_service_name != NULL) { /* service name tag maybe empty */
ninoderkinderen 0:8d87bc453349 1027 l1 = strlen(sc->sc_service_name);
ninoderkinderen 0:8d87bc453349 1028 len += l1;
ninoderkinderen 0:8d87bc453349 1029 }
ninoderkinderen 0:8d87bc453349 1030 pb = pbuf_alloc(PBUF_LINK, sizeof(struct eth_hdr) + PPPOE_HEADERLEN + len, PBUF_RAM);
ninoderkinderen 0:8d87bc453349 1031 if (!pb) {
ninoderkinderen 0:8d87bc453349 1032 return ERR_MEM;
ninoderkinderen 0:8d87bc453349 1033 }
ninoderkinderen 0:8d87bc453349 1034 LWIP_ASSERT("pb->tot_len == pb->len", pb->tot_len == pb->len);
ninoderkinderen 0:8d87bc453349 1035 p = (u8_t*)pb->payload + sizeof (struct eth_hdr);
ninoderkinderen 0:8d87bc453349 1036 PPPOE_ADD_HEADER(p, PPPOE_CODE_PADS, sc->sc_session, len);
ninoderkinderen 0:8d87bc453349 1037 PPPOE_ADD_16(p, PPPOE_TAG_SNAME);
ninoderkinderen 0:8d87bc453349 1038 if (sc->sc_service_name != NULL) {
ninoderkinderen 0:8d87bc453349 1039 PPPOE_ADD_16(p, l1);
ninoderkinderen 0:8d87bc453349 1040 MEMCPY(p, sc->sc_service_name, l1);
ninoderkinderen 0:8d87bc453349 1041 p += l1;
ninoderkinderen 0:8d87bc453349 1042 } else {
ninoderkinderen 0:8d87bc453349 1043 PPPOE_ADD_16(p, 0);
ninoderkinderen 0:8d87bc453349 1044 }
ninoderkinderen 0:8d87bc453349 1045 PPPOE_ADD_16(p, PPPOE_TAG_HUNIQUE);
ninoderkinderen 0:8d87bc453349 1046 PPPOE_ADD_16(p, sc->sc_hunique_len);
ninoderkinderen 0:8d87bc453349 1047 MEMCPY(p, sc->sc_hunique, sc->sc_hunique_len);
ninoderkinderen 0:8d87bc453349 1048 return pppoe_output(sc, pb);
ninoderkinderen 0:8d87bc453349 1049 }
ninoderkinderen 0:8d87bc453349 1050 #endif
ninoderkinderen 0:8d87bc453349 1051
ninoderkinderen 0:8d87bc453349 1052 err_t
ninoderkinderen 0:8d87bc453349 1053 pppoe_xmit(struct pppoe_softc *sc, struct pbuf *pb)
ninoderkinderen 0:8d87bc453349 1054 {
ninoderkinderen 0:8d87bc453349 1055 u8_t *p;
ninoderkinderen 0:8d87bc453349 1056 size_t len;
ninoderkinderen 0:8d87bc453349 1057
ninoderkinderen 0:8d87bc453349 1058 /* are we ready to process data yet? */
ninoderkinderen 0:8d87bc453349 1059 if (sc->sc_state < PPPOE_STATE_SESSION) {
ninoderkinderen 0:8d87bc453349 1060 /*sppp_flush(&sc->sc_sppp.pp_if);*/
ninoderkinderen 0:8d87bc453349 1061 pbuf_free(pb);
ninoderkinderen 0:8d87bc453349 1062 return ERR_CONN;
ninoderkinderen 0:8d87bc453349 1063 }
ninoderkinderen 0:8d87bc453349 1064
ninoderkinderen 0:8d87bc453349 1065 len = pb->tot_len;
ninoderkinderen 0:8d87bc453349 1066
ninoderkinderen 0:8d87bc453349 1067 /* make room for Ethernet header - should not fail */
ninoderkinderen 0:8d87bc453349 1068 if (pbuf_header(pb, sizeof(struct eth_hdr) + PPPOE_HEADERLEN) != 0) {
ninoderkinderen 0:8d87bc453349 1069 /* bail out */
ninoderkinderen 0:8d87bc453349 1070 PPPDEBUG(LOG_ERR, ("pppoe: %c%c%"U16_F": pppoe_xmit: could not allocate room for header\n", sc->sc_ethif->name[0], sc->sc_ethif->name[1], sc->sc_ethif->num));
ninoderkinderen 0:8d87bc453349 1071 LINK_STATS_INC(link.lenerr);
ninoderkinderen 0:8d87bc453349 1072 pbuf_free(pb);
ninoderkinderen 0:8d87bc453349 1073 return ERR_BUF;
ninoderkinderen 0:8d87bc453349 1074 }
ninoderkinderen 0:8d87bc453349 1075
ninoderkinderen 0:8d87bc453349 1076 p = (u8_t*)pb->payload + sizeof(struct eth_hdr);
ninoderkinderen 0:8d87bc453349 1077 PPPOE_ADD_HEADER(p, 0, sc->sc_session, len);
ninoderkinderen 0:8d87bc453349 1078
ninoderkinderen 0:8d87bc453349 1079 return pppoe_output(sc, pb);
ninoderkinderen 0:8d87bc453349 1080 }
ninoderkinderen 0:8d87bc453349 1081
ninoderkinderen 0:8d87bc453349 1082 #if 0 /*def PFIL_HOOKS*/
ninoderkinderen 0:8d87bc453349 1083 static int
ninoderkinderen 0:8d87bc453349 1084 pppoe_ifattach_hook(void *arg, struct pbuf **mp, struct netif *ifp, int dir)
ninoderkinderen 0:8d87bc453349 1085 {
ninoderkinderen 0:8d87bc453349 1086 struct pppoe_softc *sc;
ninoderkinderen 0:8d87bc453349 1087 int s;
ninoderkinderen 0:8d87bc453349 1088
ninoderkinderen 0:8d87bc453349 1089 if (mp != (struct pbuf **)PFIL_IFNET_DETACH) {
ninoderkinderen 0:8d87bc453349 1090 return 0;
ninoderkinderen 0:8d87bc453349 1091 }
ninoderkinderen 0:8d87bc453349 1092
ninoderkinderen 0:8d87bc453349 1093 LIST_FOREACH(sc, &pppoe_softc_list, sc_list) {
ninoderkinderen 0:8d87bc453349 1094 if (sc->sc_ethif != ifp) {
ninoderkinderen 0:8d87bc453349 1095 continue;
ninoderkinderen 0:8d87bc453349 1096 }
ninoderkinderen 0:8d87bc453349 1097 if (sc->sc_sppp.pp_if.if_flags & IFF_UP) {
ninoderkinderen 0:8d87bc453349 1098 sc->sc_sppp.pp_if.if_flags &= ~(IFF_UP|IFF_RUNNING);
ninoderkinderen 0:8d87bc453349 1099 printf("%c%c%"U16_F": ethernet interface detached, going down\n",
ninoderkinderen 0:8d87bc453349 1100 sc->sc_ethif->name[0], sc->sc_ethif->name[1], sc->sc_ethif->num);
ninoderkinderen 0:8d87bc453349 1101 }
ninoderkinderen 0:8d87bc453349 1102 sc->sc_ethif = NULL;
ninoderkinderen 0:8d87bc453349 1103 pppoe_clear_softc(sc, "ethernet interface detached");
ninoderkinderen 0:8d87bc453349 1104 }
ninoderkinderen 0:8d87bc453349 1105
ninoderkinderen 0:8d87bc453349 1106 return 0;
ninoderkinderen 0:8d87bc453349 1107 }
ninoderkinderen 0:8d87bc453349 1108 #endif
ninoderkinderen 0:8d87bc453349 1109
ninoderkinderen 0:8d87bc453349 1110 static void
ninoderkinderen 0:8d87bc453349 1111 pppoe_clear_softc(struct pppoe_softc *sc, const char *message)
ninoderkinderen 0:8d87bc453349 1112 {
ninoderkinderen 0:8d87bc453349 1113 LWIP_UNUSED_ARG(message);
ninoderkinderen 0:8d87bc453349 1114
ninoderkinderen 0:8d87bc453349 1115 /* stop timer */
ninoderkinderen 0:8d87bc453349 1116 sys_untimeout(pppoe_timeout, sc);
ninoderkinderen 0:8d87bc453349 1117 PPPDEBUG(LOG_DEBUG, ("pppoe: %c%c%"U16_F": session 0x%x terminated, %s\n", sc->sc_ethif->name[0], sc->sc_ethif->name[1], sc->sc_ethif->num, sc->sc_session, message));
ninoderkinderen 0:8d87bc453349 1118
ninoderkinderen 0:8d87bc453349 1119 /* fix our state */
ninoderkinderen 0:8d87bc453349 1120 sc->sc_state = PPPOE_STATE_INITIAL;
ninoderkinderen 0:8d87bc453349 1121
ninoderkinderen 0:8d87bc453349 1122 /* notify upper layers */
ninoderkinderen 0:8d87bc453349 1123 sc->sc_linkStatusCB(sc->sc_pd, 0);
ninoderkinderen 0:8d87bc453349 1124
ninoderkinderen 0:8d87bc453349 1125 /* clean up softc */
ninoderkinderen 0:8d87bc453349 1126 MEMCPY(&sc->sc_dest, ethbroadcast.addr, sizeof(sc->sc_dest));
ninoderkinderen 0:8d87bc453349 1127 sc->sc_ac_cookie_len = 0;
ninoderkinderen 0:8d87bc453349 1128 sc->sc_session = 0;
ninoderkinderen 0:8d87bc453349 1129 }
ninoderkinderen 0:8d87bc453349 1130
ninoderkinderen 0:8d87bc453349 1131 #endif /* PPPOE_SUPPORT */
ninoderkinderen 0:8d87bc453349 1132