Nino Der Kinderen / Mbed 2 deprecated InetTest

Embedded C project:18/12/2014

Dependencies:   DS1307 TextLCD mbed

NetServices/lwip/netif/ppp/ppp.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.c - Network Point to Point Protocol program file.
ninoderkinderen 0:8d87bc453349 3 *
ninoderkinderen 0:8d87bc453349 4 * Copyright (c) 2003 by Marc Boucher, Services Informatiques (MBSI) inc.
ninoderkinderen 0:8d87bc453349 5 * portions Copyright (c) 1997 by Global Election Systems Inc.
ninoderkinderen 0:8d87bc453349 6 *
ninoderkinderen 0:8d87bc453349 7 * The authors hereby grant permission to use, copy, modify, distribute,
ninoderkinderen 0:8d87bc453349 8 * and license this software and its documentation for any purpose, provided
ninoderkinderen 0:8d87bc453349 9 * that existing copyright notices are retained in all copies and that this
ninoderkinderen 0:8d87bc453349 10 * notice and the following disclaimer are included verbatim in any
ninoderkinderen 0:8d87bc453349 11 * distributions. No written agreement, license, or royalty fee is required
ninoderkinderen 0:8d87bc453349 12 * for any of the authorized uses.
ninoderkinderen 0:8d87bc453349 13 *
ninoderkinderen 0:8d87bc453349 14 * THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS *AS IS* AND ANY EXPRESS OR
ninoderkinderen 0:8d87bc453349 15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
ninoderkinderen 0:8d87bc453349 16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
ninoderkinderen 0:8d87bc453349 17 * IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
ninoderkinderen 0:8d87bc453349 18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
ninoderkinderen 0:8d87bc453349 19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
ninoderkinderen 0:8d87bc453349 20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
ninoderkinderen 0:8d87bc453349 21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
ninoderkinderen 0:8d87bc453349 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
ninoderkinderen 0:8d87bc453349 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
ninoderkinderen 0:8d87bc453349 24 *
ninoderkinderen 0:8d87bc453349 25 ******************************************************************************
ninoderkinderen 0:8d87bc453349 26 * REVISION HISTORY
ninoderkinderen 0:8d87bc453349 27 *
ninoderkinderen 0:8d87bc453349 28 * 03-01-01 Marc Boucher <marc@mbsi.ca>
ninoderkinderen 0:8d87bc453349 29 * Ported to lwIP.
ninoderkinderen 0:8d87bc453349 30 * 97-11-05 Guy Lancaster <lancasterg@acm.org>, Global Election Systems Inc.
ninoderkinderen 0:8d87bc453349 31 * Original.
ninoderkinderen 0:8d87bc453349 32 *****************************************************************************/
ninoderkinderen 0:8d87bc453349 33
ninoderkinderen 0:8d87bc453349 34 /*
ninoderkinderen 0:8d87bc453349 35 * ppp_defs.h - PPP definitions.
ninoderkinderen 0:8d87bc453349 36 *
ninoderkinderen 0:8d87bc453349 37 * if_pppvar.h - private structures and declarations for PPP.
ninoderkinderen 0:8d87bc453349 38 *
ninoderkinderen 0:8d87bc453349 39 * Copyright (c) 1994 The Australian National University.
ninoderkinderen 0:8d87bc453349 40 * All rights reserved.
ninoderkinderen 0:8d87bc453349 41 *
ninoderkinderen 0:8d87bc453349 42 * Permission to use, copy, modify, and distribute this software and its
ninoderkinderen 0:8d87bc453349 43 * documentation is hereby granted, provided that the above copyright
ninoderkinderen 0:8d87bc453349 44 * notice appears in all copies. This software is provided without any
ninoderkinderen 0:8d87bc453349 45 * warranty, express or implied. The Australian National University
ninoderkinderen 0:8d87bc453349 46 * makes no representations about the suitability of this software for
ninoderkinderen 0:8d87bc453349 47 * any purpose.
ninoderkinderen 0:8d87bc453349 48 *
ninoderkinderen 0:8d87bc453349 49 * IN NO EVENT SHALL THE AUSTRALIAN NATIONAL UNIVERSITY BE LIABLE TO ANY
ninoderkinderen 0:8d87bc453349 50 * PARTY FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
ninoderkinderen 0:8d87bc453349 51 * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF
ninoderkinderen 0:8d87bc453349 52 * THE AUSTRALIAN NATIONAL UNIVERSITY HAVE BEEN ADVISED OF THE POSSIBILITY
ninoderkinderen 0:8d87bc453349 53 * OF SUCH DAMAGE.
ninoderkinderen 0:8d87bc453349 54 *
ninoderkinderen 0:8d87bc453349 55 * THE AUSTRALIAN NATIONAL UNIVERSITY SPECIFICALLY DISCLAIMS ANY WARRANTIES,
ninoderkinderen 0:8d87bc453349 56 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
ninoderkinderen 0:8d87bc453349 57 * AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
ninoderkinderen 0:8d87bc453349 58 * ON AN "AS IS" BASIS, AND THE AUSTRALIAN NATIONAL UNIVERSITY HAS NO
ninoderkinderen 0:8d87bc453349 59 * OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS,
ninoderkinderen 0:8d87bc453349 60 * OR MODIFICATIONS.
ninoderkinderen 0:8d87bc453349 61 */
ninoderkinderen 0:8d87bc453349 62
ninoderkinderen 0:8d87bc453349 63 /*
ninoderkinderen 0:8d87bc453349 64 * if_ppp.h - Point-to-Point Protocol definitions.
ninoderkinderen 0:8d87bc453349 65 *
ninoderkinderen 0:8d87bc453349 66 * Copyright (c) 1989 Carnegie Mellon University.
ninoderkinderen 0:8d87bc453349 67 * All rights reserved.
ninoderkinderen 0:8d87bc453349 68 *
ninoderkinderen 0:8d87bc453349 69 * Redistribution and use in source and binary forms are permitted
ninoderkinderen 0:8d87bc453349 70 * provided that the above copyright notice and this paragraph are
ninoderkinderen 0:8d87bc453349 71 * duplicated in all such forms and that any documentation,
ninoderkinderen 0:8d87bc453349 72 * advertising materials, and other materials related to such
ninoderkinderen 0:8d87bc453349 73 * distribution and use acknowledge that the software was developed
ninoderkinderen 0:8d87bc453349 74 * by Carnegie Mellon University. The name of the
ninoderkinderen 0:8d87bc453349 75 * University may not be used to endorse or promote products derived
ninoderkinderen 0:8d87bc453349 76 * from this software without specific prior written permission.
ninoderkinderen 0:8d87bc453349 77 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
ninoderkinderen 0:8d87bc453349 78 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
ninoderkinderen 0:8d87bc453349 79 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
ninoderkinderen 0:8d87bc453349 80 */
ninoderkinderen 0:8d87bc453349 81
ninoderkinderen 0:8d87bc453349 82 #include "lwip/opt.h"
ninoderkinderen 0:8d87bc453349 83
ninoderkinderen 0:8d87bc453349 84 #if PPP_SUPPORT /* don't build if not configured for use in lwipopts.h */
ninoderkinderen 0:8d87bc453349 85
ninoderkinderen 0:8d87bc453349 86 #include "lwip/ip.h" /* for ip_input() */
ninoderkinderen 0:8d87bc453349 87
ninoderkinderen 0:8d87bc453349 88 #include "ppp.h"
ninoderkinderen 0:8d87bc453349 89 #include "pppdebug.h"
ninoderkinderen 0:8d87bc453349 90
ninoderkinderen 0:8d87bc453349 91 #include "randm.h"
ninoderkinderen 0:8d87bc453349 92 #include "fsm.h"
ninoderkinderen 0:8d87bc453349 93 #if PAP_SUPPORT
ninoderkinderen 0:8d87bc453349 94 #include "pap.h"
ninoderkinderen 0:8d87bc453349 95 #endif /* PAP_SUPPORT */
ninoderkinderen 0:8d87bc453349 96 #if CHAP_SUPPORT
ninoderkinderen 0:8d87bc453349 97 #include "chap.h"
ninoderkinderen 0:8d87bc453349 98 #endif /* CHAP_SUPPORT */
ninoderkinderen 0:8d87bc453349 99 #include "ipcp.h"
ninoderkinderen 0:8d87bc453349 100 #include "lcp.h"
ninoderkinderen 0:8d87bc453349 101 #include "magic.h"
ninoderkinderen 0:8d87bc453349 102 #include "auth.h"
ninoderkinderen 0:8d87bc453349 103 #if VJ_SUPPORT
ninoderkinderen 0:8d87bc453349 104 #include "vj.h"
ninoderkinderen 0:8d87bc453349 105 #endif /* VJ_SUPPORT */
ninoderkinderen 0:8d87bc453349 106 #if PPPOE_SUPPORT
ninoderkinderen 0:8d87bc453349 107 #include "netif/ppp_oe.h"
ninoderkinderen 0:8d87bc453349 108 #endif /* PPPOE_SUPPORT */
ninoderkinderen 0:8d87bc453349 109
ninoderkinderen 0:8d87bc453349 110 #include "lwip/tcpip.h"
ninoderkinderen 0:8d87bc453349 111 #include "lwip/api.h"
ninoderkinderen 0:8d87bc453349 112 #include "lwip/snmp.h"
ninoderkinderen 0:8d87bc453349 113
ninoderkinderen 0:8d87bc453349 114 #include <string.h>
ninoderkinderen 0:8d87bc453349 115
ninoderkinderen 0:8d87bc453349 116 /*************************/
ninoderkinderen 0:8d87bc453349 117 /*** LOCAL DEFINITIONS ***/
ninoderkinderen 0:8d87bc453349 118 /*************************/
ninoderkinderen 0:8d87bc453349 119
ninoderkinderen 0:8d87bc453349 120 /** PPP_INPROC_MULTITHREADED==1 call pppInput using tcpip_callback().
ninoderkinderen 0:8d87bc453349 121 * Set this to 0 if pppInProc is called inside tcpip_thread or with NO_SYS==1.
ninoderkinderen 0:8d87bc453349 122 * Default is 1 for NO_SYS==0 (multithreaded) and 0 for NO_SYS==1 (single-threaded).
ninoderkinderen 0:8d87bc453349 123 */
ninoderkinderen 0:8d87bc453349 124 #ifndef PPP_INPROC_MULTITHREADED
ninoderkinderen 0:8d87bc453349 125 #define PPP_INPROC_MULTITHREADED (NO_SYS==0)
ninoderkinderen 0:8d87bc453349 126 #endif
ninoderkinderen 0:8d87bc453349 127
ninoderkinderen 0:8d87bc453349 128 /** PPP_INPROC_OWNTHREAD==1: start a dedicated RX thread per PPP session.
ninoderkinderen 0:8d87bc453349 129 * Default is 0: call pppos_input() for received raw characters, charcater
ninoderkinderen 0:8d87bc453349 130 * reception is up to the port */
ninoderkinderen 0:8d87bc453349 131 #ifndef PPP_INPROC_OWNTHREAD
ninoderkinderen 0:8d87bc453349 132 #define PPP_INPROC_OWNTHREAD PPP_INPROC_MULTITHREADED
ninoderkinderen 0:8d87bc453349 133 #endif
ninoderkinderen 0:8d87bc453349 134
ninoderkinderen 0:8d87bc453349 135 #if PPP_INPROC_OWNTHREAD && !PPP_INPROC_MULTITHREADED
ninoderkinderen 0:8d87bc453349 136 #error "PPP_INPROC_OWNTHREAD needs PPP_INPROC_MULTITHREADED==1"
ninoderkinderen 0:8d87bc453349 137 #endif
ninoderkinderen 0:8d87bc453349 138
ninoderkinderen 0:8d87bc453349 139 /*
ninoderkinderen 0:8d87bc453349 140 * The basic PPP frame.
ninoderkinderen 0:8d87bc453349 141 */
ninoderkinderen 0:8d87bc453349 142 #define PPP_ADDRESS(p) (((u_char *)(p))[0])
ninoderkinderen 0:8d87bc453349 143 #define PPP_CONTROL(p) (((u_char *)(p))[1])
ninoderkinderen 0:8d87bc453349 144 #define PPP_PROTOCOL(p) ((((u_char *)(p))[2] << 8) + ((u_char *)(p))[3])
ninoderkinderen 0:8d87bc453349 145
ninoderkinderen 0:8d87bc453349 146 /* PPP packet parser states. Current state indicates operation yet to be
ninoderkinderen 0:8d87bc453349 147 * completed. */
ninoderkinderen 0:8d87bc453349 148 typedef enum {
ninoderkinderen 0:8d87bc453349 149 PDIDLE = 0, /* Idle state - waiting. */
ninoderkinderen 0:8d87bc453349 150 PDSTART, /* Process start flag. */
ninoderkinderen 0:8d87bc453349 151 PDADDRESS, /* Process address field. */
ninoderkinderen 0:8d87bc453349 152 PDCONTROL, /* Process control field. */
ninoderkinderen 0:8d87bc453349 153 PDPROTOCOL1, /* Process protocol field 1. */
ninoderkinderen 0:8d87bc453349 154 PDPROTOCOL2, /* Process protocol field 2. */
ninoderkinderen 0:8d87bc453349 155 PDDATA /* Process data byte. */
ninoderkinderen 0:8d87bc453349 156 } PPPDevStates;
ninoderkinderen 0:8d87bc453349 157
ninoderkinderen 0:8d87bc453349 158 #define ESCAPE_P(accm, c) ((accm)[(c) >> 3] & pppACCMMask[c & 0x07])
ninoderkinderen 0:8d87bc453349 159
ninoderkinderen 0:8d87bc453349 160 /************************/
ninoderkinderen 0:8d87bc453349 161 /*** LOCAL DATA TYPES ***/
ninoderkinderen 0:8d87bc453349 162 /************************/
ninoderkinderen 0:8d87bc453349 163
ninoderkinderen 0:8d87bc453349 164 /** RX buffer size: this may be configured smaller! */
ninoderkinderen 0:8d87bc453349 165 #ifndef PPPOS_RX_BUFSIZE
ninoderkinderen 0:8d87bc453349 166 #define PPPOS_RX_BUFSIZE (PPP_MRU + PPP_HDRLEN)
ninoderkinderen 0:8d87bc453349 167 #endif
ninoderkinderen 0:8d87bc453349 168
ninoderkinderen 0:8d87bc453349 169 typedef struct PPPControlRx_s {
ninoderkinderen 0:8d87bc453349 170 /** unit number / ppp descriptor */
ninoderkinderen 0:8d87bc453349 171 int pd;
ninoderkinderen 0:8d87bc453349 172 /** the rx file descriptor */
ninoderkinderen 0:8d87bc453349 173 sio_fd_t fd;
ninoderkinderen 0:8d87bc453349 174 /** receive buffer - encoded data is stored here */
ninoderkinderen 0:8d87bc453349 175 u_char rxbuf[PPPOS_RX_BUFSIZE];
ninoderkinderen 0:8d87bc453349 176
ninoderkinderen 0:8d87bc453349 177 /* The input packet. */
ninoderkinderen 0:8d87bc453349 178 struct pbuf *inHead, *inTail;
ninoderkinderen 0:8d87bc453349 179
ninoderkinderen 0:8d87bc453349 180 #if PPPOS_SUPPORT
ninoderkinderen 0:8d87bc453349 181 u16_t inProtocol; /* The input protocol code. */
ninoderkinderen 0:8d87bc453349 182 u16_t inFCS; /* Input Frame Check Sequence value. */
ninoderkinderen 0:8d87bc453349 183 #endif /* PPPOS_SUPPORT */
ninoderkinderen 0:8d87bc453349 184 PPPDevStates inState; /* The input process state. */
ninoderkinderen 0:8d87bc453349 185 char inEscaped; /* Escape next character. */
ninoderkinderen 0:8d87bc453349 186 ext_accm inACCM; /* Async-Ctl-Char-Map for input. */
ninoderkinderen 0:8d87bc453349 187 } PPPControlRx;
ninoderkinderen 0:8d87bc453349 188
ninoderkinderen 0:8d87bc453349 189 /*
ninoderkinderen 0:8d87bc453349 190 * PPP interface control block.
ninoderkinderen 0:8d87bc453349 191 */
ninoderkinderen 0:8d87bc453349 192 typedef struct PPPControl_s {
ninoderkinderen 0:8d87bc453349 193 PPPControlRx rx;
ninoderkinderen 0:8d87bc453349 194 char openFlag; /* True when in use. */
ninoderkinderen 0:8d87bc453349 195 #if PPPOE_SUPPORT
ninoderkinderen 0:8d87bc453349 196 struct netif *ethif;
ninoderkinderen 0:8d87bc453349 197 struct pppoe_softc *pppoe_sc;
ninoderkinderen 0:8d87bc453349 198 #endif /* PPPOE_SUPPORT */
ninoderkinderen 0:8d87bc453349 199 int if_up; /* True when the interface is up. */
ninoderkinderen 0:8d87bc453349 200 int errCode; /* Code indicating why interface is down. */
ninoderkinderen 0:8d87bc453349 201 #if PPPOS_SUPPORT
ninoderkinderen 0:8d87bc453349 202 sio_fd_t fd; /* File device ID of port. */
ninoderkinderen 0:8d87bc453349 203 #endif /* PPPOS_SUPPORT */
ninoderkinderen 0:8d87bc453349 204 u16_t mtu; /* Peer's mru */
ninoderkinderen 0:8d87bc453349 205 int pcomp; /* Does peer accept protocol compression? */
ninoderkinderen 0:8d87bc453349 206 int accomp; /* Does peer accept addr/ctl compression? */
ninoderkinderen 0:8d87bc453349 207 u_long lastXMit; /* Time of last transmission. */
ninoderkinderen 0:8d87bc453349 208 ext_accm outACCM; /* Async-Ctl-Char-Map for output. */
ninoderkinderen 0:8d87bc453349 209 #if PPPOS_SUPPORT && VJ_SUPPORT
ninoderkinderen 0:8d87bc453349 210 int vjEnabled; /* Flag indicating VJ compression enabled. */
ninoderkinderen 0:8d87bc453349 211 struct vjcompress vjComp; /* Van Jacobson compression header. */
ninoderkinderen 0:8d87bc453349 212 #endif /* PPPOS_SUPPORT && VJ_SUPPORT */
ninoderkinderen 0:8d87bc453349 213
ninoderkinderen 0:8d87bc453349 214 struct netif netif;
ninoderkinderen 0:8d87bc453349 215
ninoderkinderen 0:8d87bc453349 216 struct ppp_addrs addrs;
ninoderkinderen 0:8d87bc453349 217
ninoderkinderen 0:8d87bc453349 218 void (*linkStatusCB)(void *ctx, int errCode, void *arg);
ninoderkinderen 0:8d87bc453349 219 void *linkStatusCtx;
ninoderkinderen 0:8d87bc453349 220
ninoderkinderen 0:8d87bc453349 221 } PPPControl;
ninoderkinderen 0:8d87bc453349 222
ninoderkinderen 0:8d87bc453349 223
ninoderkinderen 0:8d87bc453349 224 /*
ninoderkinderen 0:8d87bc453349 225 * Ioctl definitions.
ninoderkinderen 0:8d87bc453349 226 */
ninoderkinderen 0:8d87bc453349 227
ninoderkinderen 0:8d87bc453349 228 struct npioctl {
ninoderkinderen 0:8d87bc453349 229 int protocol; /* PPP procotol, e.g. PPP_IP */
ninoderkinderen 0:8d87bc453349 230 enum NPmode mode;
ninoderkinderen 0:8d87bc453349 231 };
ninoderkinderen 0:8d87bc453349 232
ninoderkinderen 0:8d87bc453349 233
ninoderkinderen 0:8d87bc453349 234
ninoderkinderen 0:8d87bc453349 235 /***********************************/
ninoderkinderen 0:8d87bc453349 236 /*** LOCAL FUNCTION DECLARATIONS ***/
ninoderkinderen 0:8d87bc453349 237 /***********************************/
ninoderkinderen 0:8d87bc453349 238 #if PPPOS_SUPPORT
ninoderkinderen 0:8d87bc453349 239 #if PPP_INPROC_OWNTHREAD
ninoderkinderen 0:8d87bc453349 240 static void pppInputThread(void *arg);
ninoderkinderen 0:8d87bc453349 241 #endif /* PPP_INPROC_OWNTHREAD */
ninoderkinderen 0:8d87bc453349 242 static void pppDrop(PPPControlRx *pcrx);
ninoderkinderen 0:8d87bc453349 243 static void pppInProc(PPPControlRx *pcrx, u_char *s, int l);
ninoderkinderen 0:8d87bc453349 244 #endif /* PPPOS_SUPPORT */
ninoderkinderen 0:8d87bc453349 245
ninoderkinderen 0:8d87bc453349 246
ninoderkinderen 0:8d87bc453349 247 /******************************/
ninoderkinderen 0:8d87bc453349 248 /*** PUBLIC DATA STRUCTURES ***/
ninoderkinderen 0:8d87bc453349 249 /******************************/
ninoderkinderen 0:8d87bc453349 250 u_long subnetMask;
ninoderkinderen 0:8d87bc453349 251
ninoderkinderen 0:8d87bc453349 252 static PPPControl pppControl[NUM_PPP] MEM_POSITION; /* The PPP interface control blocks. */
ninoderkinderen 0:8d87bc453349 253
ninoderkinderen 0:8d87bc453349 254 /*
ninoderkinderen 0:8d87bc453349 255 * PPP Data Link Layer "protocol" table.
ninoderkinderen 0:8d87bc453349 256 * One entry per supported protocol.
ninoderkinderen 0:8d87bc453349 257 * The last entry must be NULL.
ninoderkinderen 0:8d87bc453349 258 */
ninoderkinderen 0:8d87bc453349 259 struct protent *ppp_protocols[] = {
ninoderkinderen 0:8d87bc453349 260 &lcp_protent,
ninoderkinderen 0:8d87bc453349 261 #if PAP_SUPPORT
ninoderkinderen 0:8d87bc453349 262 &pap_protent,
ninoderkinderen 0:8d87bc453349 263 #endif /* PAP_SUPPORT */
ninoderkinderen 0:8d87bc453349 264 #if CHAP_SUPPORT
ninoderkinderen 0:8d87bc453349 265 &chap_protent,
ninoderkinderen 0:8d87bc453349 266 #endif /* CHAP_SUPPORT */
ninoderkinderen 0:8d87bc453349 267 #if CBCP_SUPPORT
ninoderkinderen 0:8d87bc453349 268 &cbcp_protent,
ninoderkinderen 0:8d87bc453349 269 #endif /* CBCP_SUPPORT */
ninoderkinderen 0:8d87bc453349 270 &ipcp_protent,
ninoderkinderen 0:8d87bc453349 271 #if CCP_SUPPORT
ninoderkinderen 0:8d87bc453349 272 &ccp_protent,
ninoderkinderen 0:8d87bc453349 273 #endif /* CCP_SUPPORT */
ninoderkinderen 0:8d87bc453349 274 NULL
ninoderkinderen 0:8d87bc453349 275 };
ninoderkinderen 0:8d87bc453349 276
ninoderkinderen 0:8d87bc453349 277
ninoderkinderen 0:8d87bc453349 278 /*
ninoderkinderen 0:8d87bc453349 279 * Buffers for outgoing packets. This must be accessed only from the appropriate
ninoderkinderen 0:8d87bc453349 280 * PPP task so that it doesn't need to be protected to avoid collisions.
ninoderkinderen 0:8d87bc453349 281 */
ninoderkinderen 0:8d87bc453349 282 u_char outpacket_buf[NUM_PPP][PPP_MRU+PPP_HDRLEN] MEM_POSITION;
ninoderkinderen 0:8d87bc453349 283
ninoderkinderen 0:8d87bc453349 284
ninoderkinderen 0:8d87bc453349 285 /*****************************/
ninoderkinderen 0:8d87bc453349 286 /*** LOCAL DATA STRUCTURES ***/
ninoderkinderen 0:8d87bc453349 287 /*****************************/
ninoderkinderen 0:8d87bc453349 288
ninoderkinderen 0:8d87bc453349 289 #if PPPOS_SUPPORT
ninoderkinderen 0:8d87bc453349 290 /*
ninoderkinderen 0:8d87bc453349 291 * FCS lookup table as calculated by genfcstab.
ninoderkinderen 0:8d87bc453349 292 * @todo: smaller, slower implementation for lower memory footprint?
ninoderkinderen 0:8d87bc453349 293 */
ninoderkinderen 0:8d87bc453349 294 static const u_short fcstab[256] = {
ninoderkinderen 0:8d87bc453349 295 0x0000, 0x1189, 0x2312, 0x329b, 0x4624, 0x57ad, 0x6536, 0x74bf,
ninoderkinderen 0:8d87bc453349 296 0x8c48, 0x9dc1, 0xaf5a, 0xbed3, 0xca6c, 0xdbe5, 0xe97e, 0xf8f7,
ninoderkinderen 0:8d87bc453349 297 0x1081, 0x0108, 0x3393, 0x221a, 0x56a5, 0x472c, 0x75b7, 0x643e,
ninoderkinderen 0:8d87bc453349 298 0x9cc9, 0x8d40, 0xbfdb, 0xae52, 0xdaed, 0xcb64, 0xf9ff, 0xe876,
ninoderkinderen 0:8d87bc453349 299 0x2102, 0x308b, 0x0210, 0x1399, 0x6726, 0x76af, 0x4434, 0x55bd,
ninoderkinderen 0:8d87bc453349 300 0xad4a, 0xbcc3, 0x8e58, 0x9fd1, 0xeb6e, 0xfae7, 0xc87c, 0xd9f5,
ninoderkinderen 0:8d87bc453349 301 0x3183, 0x200a, 0x1291, 0x0318, 0x77a7, 0x662e, 0x54b5, 0x453c,
ninoderkinderen 0:8d87bc453349 302 0xbdcb, 0xac42, 0x9ed9, 0x8f50, 0xfbef, 0xea66, 0xd8fd, 0xc974,
ninoderkinderen 0:8d87bc453349 303 0x4204, 0x538d, 0x6116, 0x709f, 0x0420, 0x15a9, 0x2732, 0x36bb,
ninoderkinderen 0:8d87bc453349 304 0xce4c, 0xdfc5, 0xed5e, 0xfcd7, 0x8868, 0x99e1, 0xab7a, 0xbaf3,
ninoderkinderen 0:8d87bc453349 305 0x5285, 0x430c, 0x7197, 0x601e, 0x14a1, 0x0528, 0x37b3, 0x263a,
ninoderkinderen 0:8d87bc453349 306 0xdecd, 0xcf44, 0xfddf, 0xec56, 0x98e9, 0x8960, 0xbbfb, 0xaa72,
ninoderkinderen 0:8d87bc453349 307 0x6306, 0x728f, 0x4014, 0x519d, 0x2522, 0x34ab, 0x0630, 0x17b9,
ninoderkinderen 0:8d87bc453349 308 0xef4e, 0xfec7, 0xcc5c, 0xddd5, 0xa96a, 0xb8e3, 0x8a78, 0x9bf1,
ninoderkinderen 0:8d87bc453349 309 0x7387, 0x620e, 0x5095, 0x411c, 0x35a3, 0x242a, 0x16b1, 0x0738,
ninoderkinderen 0:8d87bc453349 310 0xffcf, 0xee46, 0xdcdd, 0xcd54, 0xb9eb, 0xa862, 0x9af9, 0x8b70,
ninoderkinderen 0:8d87bc453349 311 0x8408, 0x9581, 0xa71a, 0xb693, 0xc22c, 0xd3a5, 0xe13e, 0xf0b7,
ninoderkinderen 0:8d87bc453349 312 0x0840, 0x19c9, 0x2b52, 0x3adb, 0x4e64, 0x5fed, 0x6d76, 0x7cff,
ninoderkinderen 0:8d87bc453349 313 0x9489, 0x8500, 0xb79b, 0xa612, 0xd2ad, 0xc324, 0xf1bf, 0xe036,
ninoderkinderen 0:8d87bc453349 314 0x18c1, 0x0948, 0x3bd3, 0x2a5a, 0x5ee5, 0x4f6c, 0x7df7, 0x6c7e,
ninoderkinderen 0:8d87bc453349 315 0xa50a, 0xb483, 0x8618, 0x9791, 0xe32e, 0xf2a7, 0xc03c, 0xd1b5,
ninoderkinderen 0:8d87bc453349 316 0x2942, 0x38cb, 0x0a50, 0x1bd9, 0x6f66, 0x7eef, 0x4c74, 0x5dfd,
ninoderkinderen 0:8d87bc453349 317 0xb58b, 0xa402, 0x9699, 0x8710, 0xf3af, 0xe226, 0xd0bd, 0xc134,
ninoderkinderen 0:8d87bc453349 318 0x39c3, 0x284a, 0x1ad1, 0x0b58, 0x7fe7, 0x6e6e, 0x5cf5, 0x4d7c,
ninoderkinderen 0:8d87bc453349 319 0xc60c, 0xd785, 0xe51e, 0xf497, 0x8028, 0x91a1, 0xa33a, 0xb2b3,
ninoderkinderen 0:8d87bc453349 320 0x4a44, 0x5bcd, 0x6956, 0x78df, 0x0c60, 0x1de9, 0x2f72, 0x3efb,
ninoderkinderen 0:8d87bc453349 321 0xd68d, 0xc704, 0xf59f, 0xe416, 0x90a9, 0x8120, 0xb3bb, 0xa232,
ninoderkinderen 0:8d87bc453349 322 0x5ac5, 0x4b4c, 0x79d7, 0x685e, 0x1ce1, 0x0d68, 0x3ff3, 0x2e7a,
ninoderkinderen 0:8d87bc453349 323 0xe70e, 0xf687, 0xc41c, 0xd595, 0xa12a, 0xb0a3, 0x8238, 0x93b1,
ninoderkinderen 0:8d87bc453349 324 0x6b46, 0x7acf, 0x4854, 0x59dd, 0x2d62, 0x3ceb, 0x0e70, 0x1ff9,
ninoderkinderen 0:8d87bc453349 325 0xf78f, 0xe606, 0xd49d, 0xc514, 0xb1ab, 0xa022, 0x92b9, 0x8330,
ninoderkinderen 0:8d87bc453349 326 0x7bc7, 0x6a4e, 0x58d5, 0x495c, 0x3de3, 0x2c6a, 0x1ef1, 0x0f78
ninoderkinderen 0:8d87bc453349 327 };
ninoderkinderen 0:8d87bc453349 328
ninoderkinderen 0:8d87bc453349 329 /* PPP's Asynchronous-Control-Character-Map. The mask array is used
ninoderkinderen 0:8d87bc453349 330 * to select the specific bit for a character. */
ninoderkinderen 0:8d87bc453349 331 static u_char pppACCMMask[] = {
ninoderkinderen 0:8d87bc453349 332 0x01,
ninoderkinderen 0:8d87bc453349 333 0x02,
ninoderkinderen 0:8d87bc453349 334 0x04,
ninoderkinderen 0:8d87bc453349 335 0x08,
ninoderkinderen 0:8d87bc453349 336 0x10,
ninoderkinderen 0:8d87bc453349 337 0x20,
ninoderkinderen 0:8d87bc453349 338 0x40,
ninoderkinderen 0:8d87bc453349 339 0x80
ninoderkinderen 0:8d87bc453349 340 };
ninoderkinderen 0:8d87bc453349 341
ninoderkinderen 0:8d87bc453349 342 /** Wake up the task blocked in reading from serial line (if any) */
ninoderkinderen 0:8d87bc453349 343 static void
ninoderkinderen 0:8d87bc453349 344 pppRecvWakeup(int pd)
ninoderkinderen 0:8d87bc453349 345 {
ninoderkinderen 0:8d87bc453349 346 PPPDEBUG(LOG_DEBUG, ("pppRecvWakeup: unit %d\n", pd));
ninoderkinderen 0:8d87bc453349 347 sio_read_abort(pppControl[pd].fd);
ninoderkinderen 0:8d87bc453349 348 }
ninoderkinderen 0:8d87bc453349 349 #endif /* PPPOS_SUPPORT */
ninoderkinderen 0:8d87bc453349 350
ninoderkinderen 0:8d87bc453349 351 void
ninoderkinderen 0:8d87bc453349 352 pppLinkTerminated(int pd)
ninoderkinderen 0:8d87bc453349 353 {
ninoderkinderen 0:8d87bc453349 354 PPPDEBUG(LOG_DEBUG, ("pppLinkTerminated: unit %d\n", pd));
ninoderkinderen 0:8d87bc453349 355
ninoderkinderen 0:8d87bc453349 356 #if PPPOE_SUPPORT
ninoderkinderen 0:8d87bc453349 357 if (pppControl[pd].ethif) {
ninoderkinderen 0:8d87bc453349 358 pppoe_disconnect(pppControl[pd].pppoe_sc);
ninoderkinderen 0:8d87bc453349 359 } else
ninoderkinderen 0:8d87bc453349 360 #endif /* PPPOE_SUPPORT */
ninoderkinderen 0:8d87bc453349 361 {
ninoderkinderen 0:8d87bc453349 362 #if PPPOS_SUPPORT
ninoderkinderen 0:8d87bc453349 363 PPPControl* pc;
ninoderkinderen 0:8d87bc453349 364 pppRecvWakeup(pd);
ninoderkinderen 0:8d87bc453349 365 pc = &pppControl[pd];
ninoderkinderen 0:8d87bc453349 366 pppDrop(&pc->rx); /* bug fix #17726 */
ninoderkinderen 0:8d87bc453349 367
ninoderkinderen 0:8d87bc453349 368 PPPDEBUG(LOG_DEBUG, ("pppLinkTerminated: unit %d: linkStatusCB=%p errCode=%d\n", pd, pc->linkStatusCB, pc->errCode));
ninoderkinderen 0:8d87bc453349 369 if (pc->linkStatusCB) {
ninoderkinderen 0:8d87bc453349 370 pc->linkStatusCB(pc->linkStatusCtx, pc->errCode ? pc->errCode : PPPERR_PROTOCOL, NULL);
ninoderkinderen 0:8d87bc453349 371 }
ninoderkinderen 0:8d87bc453349 372
ninoderkinderen 0:8d87bc453349 373 pc->openFlag = 0;/**/
ninoderkinderen 0:8d87bc453349 374 #endif /* PPPOS_SUPPORT */
ninoderkinderen 0:8d87bc453349 375 }
ninoderkinderen 0:8d87bc453349 376 PPPDEBUG(LOG_DEBUG, ("pppLinkTerminated: finished.\n"));
ninoderkinderen 0:8d87bc453349 377 }
ninoderkinderen 0:8d87bc453349 378
ninoderkinderen 0:8d87bc453349 379 void
ninoderkinderen 0:8d87bc453349 380 pppLinkDown(int pd)
ninoderkinderen 0:8d87bc453349 381 {
ninoderkinderen 0:8d87bc453349 382 PPPDEBUG(LOG_DEBUG, ("pppLinkDown: unit %d\n", pd));
ninoderkinderen 0:8d87bc453349 383
ninoderkinderen 0:8d87bc453349 384 #if PPPOE_SUPPORT
ninoderkinderen 0:8d87bc453349 385 if (pppControl[pd].ethif) {
ninoderkinderen 0:8d87bc453349 386 pppoe_disconnect(pppControl[pd].pppoe_sc);
ninoderkinderen 0:8d87bc453349 387 } else
ninoderkinderen 0:8d87bc453349 388 #endif /* PPPOE_SUPPORT */
ninoderkinderen 0:8d87bc453349 389 {
ninoderkinderen 0:8d87bc453349 390 #if PPPOS_SUPPORT
ninoderkinderen 0:8d87bc453349 391 pppRecvWakeup(pd);
ninoderkinderen 0:8d87bc453349 392 #endif /* PPPOS_SUPPORT */
ninoderkinderen 0:8d87bc453349 393 }
ninoderkinderen 0:8d87bc453349 394 }
ninoderkinderen 0:8d87bc453349 395
ninoderkinderen 0:8d87bc453349 396 /** Initiate LCP open request */
ninoderkinderen 0:8d87bc453349 397 static void
ninoderkinderen 0:8d87bc453349 398 pppStart(int pd)
ninoderkinderen 0:8d87bc453349 399 {
ninoderkinderen 0:8d87bc453349 400 PPPDEBUG(LOG_DEBUG, ("pppStart: unit %d\n", pd));
ninoderkinderen 0:8d87bc453349 401 lcp_lowerup(pd);
ninoderkinderen 0:8d87bc453349 402 lcp_open(pd); /* Start protocol */
ninoderkinderen 0:8d87bc453349 403 PPPDEBUG(LOG_DEBUG, ("pppStart: finished\n"));
ninoderkinderen 0:8d87bc453349 404 }
ninoderkinderen 0:8d87bc453349 405
ninoderkinderen 0:8d87bc453349 406 /** LCP close request */
ninoderkinderen 0:8d87bc453349 407 static void
ninoderkinderen 0:8d87bc453349 408 pppStop(int pd)
ninoderkinderen 0:8d87bc453349 409 {
ninoderkinderen 0:8d87bc453349 410 PPPDEBUG(LOG_DEBUG, ("pppStop: unit %d\n", pd));
ninoderkinderen 0:8d87bc453349 411 lcp_close(pd, "User request");
ninoderkinderen 0:8d87bc453349 412 }
ninoderkinderen 0:8d87bc453349 413
ninoderkinderen 0:8d87bc453349 414 /** Called when carrier/link is lost */
ninoderkinderen 0:8d87bc453349 415 static void
ninoderkinderen 0:8d87bc453349 416 pppHup(int pd)
ninoderkinderen 0:8d87bc453349 417 {
ninoderkinderen 0:8d87bc453349 418 PPPDEBUG(LOG_DEBUG, ("pppHupCB: unit %d\n", pd));
ninoderkinderen 0:8d87bc453349 419 lcp_lowerdown(pd);
ninoderkinderen 0:8d87bc453349 420 link_terminated(pd);
ninoderkinderen 0:8d87bc453349 421 }
ninoderkinderen 0:8d87bc453349 422
ninoderkinderen 0:8d87bc453349 423 /***********************************/
ninoderkinderen 0:8d87bc453349 424 /*** PUBLIC FUNCTION DEFINITIONS ***/
ninoderkinderen 0:8d87bc453349 425 /***********************************/
ninoderkinderen 0:8d87bc453349 426 /* Initialize the PPP subsystem. */
ninoderkinderen 0:8d87bc453349 427
ninoderkinderen 0:8d87bc453349 428 struct ppp_settings ppp_settings;
ninoderkinderen 0:8d87bc453349 429
ninoderkinderen 0:8d87bc453349 430 void
ninoderkinderen 0:8d87bc453349 431 pppInit(void)
ninoderkinderen 0:8d87bc453349 432 {
ninoderkinderen 0:8d87bc453349 433 struct protent *protp;
ninoderkinderen 0:8d87bc453349 434 int i, j;
ninoderkinderen 0:8d87bc453349 435
ninoderkinderen 0:8d87bc453349 436 memset(&ppp_settings, 0, sizeof(ppp_settings));
ninoderkinderen 0:8d87bc453349 437 ppp_settings.usepeerdns = 1;
ninoderkinderen 0:8d87bc453349 438 pppSetAuth(PPPAUTHTYPE_NONE, NULL, NULL);
ninoderkinderen 0:8d87bc453349 439
ninoderkinderen 0:8d87bc453349 440 magicInit();
ninoderkinderen 0:8d87bc453349 441
ninoderkinderen 0:8d87bc453349 442 subnetMask = PP_HTONL(0xffffff00);
ninoderkinderen 0:8d87bc453349 443
ninoderkinderen 0:8d87bc453349 444 for (i = 0; i < NUM_PPP; i++) {
ninoderkinderen 0:8d87bc453349 445 /* Initialize each protocol to the standard option set. */
ninoderkinderen 0:8d87bc453349 446 for (j = 0; (protp = ppp_protocols[j]) != NULL; ++j) {
ninoderkinderen 0:8d87bc453349 447 (*protp->init)(i);
ninoderkinderen 0:8d87bc453349 448 }
ninoderkinderen 0:8d87bc453349 449 }
ninoderkinderen 0:8d87bc453349 450 }
ninoderkinderen 0:8d87bc453349 451
ninoderkinderen 0:8d87bc453349 452 void
ninoderkinderen 0:8d87bc453349 453 pppSetAuth(enum pppAuthType authType, const char *user, const char *passwd)
ninoderkinderen 0:8d87bc453349 454 {
ninoderkinderen 0:8d87bc453349 455 switch(authType) {
ninoderkinderen 0:8d87bc453349 456 case PPPAUTHTYPE_NONE:
ninoderkinderen 0:8d87bc453349 457 default:
ninoderkinderen 0:8d87bc453349 458 #ifdef LWIP_PPP_STRICT_PAP_REJECT
ninoderkinderen 0:8d87bc453349 459 ppp_settings.refuse_pap = 1;
ninoderkinderen 0:8d87bc453349 460 #else /* LWIP_PPP_STRICT_PAP_REJECT */
ninoderkinderen 0:8d87bc453349 461 /* some providers request pap and accept an empty login/pw */
ninoderkinderen 0:8d87bc453349 462 ppp_settings.refuse_pap = 0;
ninoderkinderen 0:8d87bc453349 463 #endif /* LWIP_PPP_STRICT_PAP_REJECT */
ninoderkinderen 0:8d87bc453349 464 ppp_settings.refuse_chap = 1;
ninoderkinderen 0:8d87bc453349 465 break;
ninoderkinderen 0:8d87bc453349 466
ninoderkinderen 0:8d87bc453349 467 case PPPAUTHTYPE_ANY:
ninoderkinderen 0:8d87bc453349 468 /* Warning: Using PPPAUTHTYPE_ANY might have security consequences.
ninoderkinderen 0:8d87bc453349 469 * RFC 1994 says:
ninoderkinderen 0:8d87bc453349 470 *
ninoderkinderen 0:8d87bc453349 471 * In practice, within or associated with each PPP server, there is a
ninoderkinderen 0:8d87bc453349 472 * database which associates "user" names with authentication
ninoderkinderen 0:8d87bc453349 473 * information ("secrets"). It is not anticipated that a particular
ninoderkinderen 0:8d87bc453349 474 * named user would be authenticated by multiple methods. This would
ninoderkinderen 0:8d87bc453349 475 * make the user vulnerable to attacks which negotiate the least secure
ninoderkinderen 0:8d87bc453349 476 * method from among a set (such as PAP rather than CHAP). If the same
ninoderkinderen 0:8d87bc453349 477 * secret was used, PAP would reveal the secret to be used later with
ninoderkinderen 0:8d87bc453349 478 * CHAP.
ninoderkinderen 0:8d87bc453349 479 *
ninoderkinderen 0:8d87bc453349 480 * Instead, for each user name there should be an indication of exactly
ninoderkinderen 0:8d87bc453349 481 * one method used to authenticate that user name. If a user needs to
ninoderkinderen 0:8d87bc453349 482 * make use of different authentication methods under different
ninoderkinderen 0:8d87bc453349 483 * circumstances, then distinct user names SHOULD be employed, each of
ninoderkinderen 0:8d87bc453349 484 * which identifies exactly one authentication method.
ninoderkinderen 0:8d87bc453349 485 *
ninoderkinderen 0:8d87bc453349 486 */
ninoderkinderen 0:8d87bc453349 487 ppp_settings.refuse_pap = 0;
ninoderkinderen 0:8d87bc453349 488 ppp_settings.refuse_chap = 0;
ninoderkinderen 0:8d87bc453349 489 break;
ninoderkinderen 0:8d87bc453349 490
ninoderkinderen 0:8d87bc453349 491 case PPPAUTHTYPE_PAP:
ninoderkinderen 0:8d87bc453349 492 ppp_settings.refuse_pap = 0;
ninoderkinderen 0:8d87bc453349 493 ppp_settings.refuse_chap = 1;
ninoderkinderen 0:8d87bc453349 494 break;
ninoderkinderen 0:8d87bc453349 495
ninoderkinderen 0:8d87bc453349 496 case PPPAUTHTYPE_CHAP:
ninoderkinderen 0:8d87bc453349 497 ppp_settings.refuse_pap = 1;
ninoderkinderen 0:8d87bc453349 498 ppp_settings.refuse_chap = 0;
ninoderkinderen 0:8d87bc453349 499 break;
ninoderkinderen 0:8d87bc453349 500 }
ninoderkinderen 0:8d87bc453349 501
ninoderkinderen 0:8d87bc453349 502 if(user) {
ninoderkinderen 0:8d87bc453349 503 strncpy(ppp_settings.user, user, sizeof(ppp_settings.user)-1);
ninoderkinderen 0:8d87bc453349 504 ppp_settings.user[sizeof(ppp_settings.user)-1] = '\0';
ninoderkinderen 0:8d87bc453349 505 } else {
ninoderkinderen 0:8d87bc453349 506 ppp_settings.user[0] = '\0';
ninoderkinderen 0:8d87bc453349 507 }
ninoderkinderen 0:8d87bc453349 508
ninoderkinderen 0:8d87bc453349 509 if(passwd) {
ninoderkinderen 0:8d87bc453349 510 strncpy(ppp_settings.passwd, passwd, sizeof(ppp_settings.passwd)-1);
ninoderkinderen 0:8d87bc453349 511 ppp_settings.passwd[sizeof(ppp_settings.passwd)-1] = '\0';
ninoderkinderen 0:8d87bc453349 512 } else {
ninoderkinderen 0:8d87bc453349 513 ppp_settings.passwd[0] = '\0';
ninoderkinderen 0:8d87bc453349 514 }
ninoderkinderen 0:8d87bc453349 515 }
ninoderkinderen 0:8d87bc453349 516
ninoderkinderen 0:8d87bc453349 517 #if PPPOS_SUPPORT
ninoderkinderen 0:8d87bc453349 518 /** Open a new PPP connection using the given I/O device.
ninoderkinderen 0:8d87bc453349 519 * This initializes the PPP control block but does not
ninoderkinderen 0:8d87bc453349 520 * attempt to negotiate the LCP session. If this port
ninoderkinderen 0:8d87bc453349 521 * connects to a modem, the modem connection must be
ninoderkinderen 0:8d87bc453349 522 * established before calling this.
ninoderkinderen 0:8d87bc453349 523 * Return a new PPP connection descriptor on success or
ninoderkinderen 0:8d87bc453349 524 * an error code (negative) on failure.
ninoderkinderen 0:8d87bc453349 525 *
ninoderkinderen 0:8d87bc453349 526 * pppOpen() is directly defined to this function.
ninoderkinderen 0:8d87bc453349 527 */
ninoderkinderen 0:8d87bc453349 528 int
ninoderkinderen 0:8d87bc453349 529 pppOverSerialOpen(sio_fd_t fd, void (*linkStatusCB)(void *ctx, int errCode, void *arg), void *linkStatusCtx)
ninoderkinderen 0:8d87bc453349 530 {
ninoderkinderen 0:8d87bc453349 531 PPPControl *pc;
ninoderkinderen 0:8d87bc453349 532 int pd;
ninoderkinderen 0:8d87bc453349 533
ninoderkinderen 0:8d87bc453349 534 if (linkStatusCB == NULL) {
ninoderkinderen 0:8d87bc453349 535 /* PPP is single-threaded: without a callback,
ninoderkinderen 0:8d87bc453349 536 * there is no way to know when the link is up. */
ninoderkinderen 0:8d87bc453349 537 return PPPERR_PARAM;
ninoderkinderen 0:8d87bc453349 538 }
ninoderkinderen 0:8d87bc453349 539
ninoderkinderen 0:8d87bc453349 540 /* Find a free PPP session descriptor. */
ninoderkinderen 0:8d87bc453349 541 for (pd = 0; pd < NUM_PPP && pppControl[pd].openFlag != 0; pd++);
ninoderkinderen 0:8d87bc453349 542
ninoderkinderen 0:8d87bc453349 543 if (pd >= NUM_PPP) {
ninoderkinderen 0:8d87bc453349 544 pd = PPPERR_OPEN;
ninoderkinderen 0:8d87bc453349 545 } else {
ninoderkinderen 0:8d87bc453349 546 pc = &pppControl[pd];
ninoderkinderen 0:8d87bc453349 547 /* @todo: is this correct or do I overwrite something? */
ninoderkinderen 0:8d87bc453349 548 memset(pc, 0, sizeof(PPPControl));
ninoderkinderen 0:8d87bc453349 549 pc->rx.pd = pd;
ninoderkinderen 0:8d87bc453349 550 pc->rx.fd = fd;
ninoderkinderen 0:8d87bc453349 551
ninoderkinderen 0:8d87bc453349 552 pc->openFlag = 1;
ninoderkinderen 0:8d87bc453349 553 pc->fd = fd;
ninoderkinderen 0:8d87bc453349 554
ninoderkinderen 0:8d87bc453349 555 #if VJ_SUPPORT
ninoderkinderen 0:8d87bc453349 556 vj_compress_init(&pc->vjComp);
ninoderkinderen 0:8d87bc453349 557 #endif /* VJ_SUPPORT */
ninoderkinderen 0:8d87bc453349 558
ninoderkinderen 0:8d87bc453349 559 /*
ninoderkinderen 0:8d87bc453349 560 * Default the in and out accm so that escape and flag characters
ninoderkinderen 0:8d87bc453349 561 * are always escaped.
ninoderkinderen 0:8d87bc453349 562 */
ninoderkinderen 0:8d87bc453349 563 pc->rx.inACCM[15] = 0x60; /* no need to protect since RX is not running */
ninoderkinderen 0:8d87bc453349 564 pc->outACCM[15] = 0x60;
ninoderkinderen 0:8d87bc453349 565
ninoderkinderen 0:8d87bc453349 566 pc->linkStatusCB = linkStatusCB;
ninoderkinderen 0:8d87bc453349 567 pc->linkStatusCtx = linkStatusCtx;
ninoderkinderen 0:8d87bc453349 568
ninoderkinderen 0:8d87bc453349 569 /*
ninoderkinderen 0:8d87bc453349 570 * Start the connection and handle incoming events (packet or timeout).
ninoderkinderen 0:8d87bc453349 571 */
ninoderkinderen 0:8d87bc453349 572 PPPDEBUG(LOG_INFO, ("pppOverSerialOpen: unit %d: Connecting\n", pd));
ninoderkinderen 0:8d87bc453349 573 pppStart(pd);
ninoderkinderen 0:8d87bc453349 574 #if PPP_INPROC_OWNTHREAD
ninoderkinderen 0:8d87bc453349 575 sys_thread_new(PPP_THREAD_NAME, pppInputThread, (void*)&pc->rx, PPP_THREAD_STACKSIZE, PPP_THREAD_PRIO);
ninoderkinderen 0:8d87bc453349 576 #endif
ninoderkinderen 0:8d87bc453349 577 }
ninoderkinderen 0:8d87bc453349 578
ninoderkinderen 0:8d87bc453349 579 return pd;
ninoderkinderen 0:8d87bc453349 580 }
ninoderkinderen 0:8d87bc453349 581 #endif /* PPPOS_SUPPORT */
ninoderkinderen 0:8d87bc453349 582
ninoderkinderen 0:8d87bc453349 583 #if PPPOE_SUPPORT
ninoderkinderen 0:8d87bc453349 584 static void pppOverEthernetLinkStatusCB(int pd, int up);
ninoderkinderen 0:8d87bc453349 585
ninoderkinderen 0:8d87bc453349 586 void
ninoderkinderen 0:8d87bc453349 587 pppOverEthernetClose(int pd)
ninoderkinderen 0:8d87bc453349 588 {
ninoderkinderen 0:8d87bc453349 589 PPPControl* pc = &pppControl[pd];
ninoderkinderen 0:8d87bc453349 590
ninoderkinderen 0:8d87bc453349 591 /* *TJL* There's no lcp_deinit */
ninoderkinderen 0:8d87bc453349 592 lcp_close(pd, NULL);
ninoderkinderen 0:8d87bc453349 593
ninoderkinderen 0:8d87bc453349 594 pppoe_destroy(&pc->netif);
ninoderkinderen 0:8d87bc453349 595 }
ninoderkinderen 0:8d87bc453349 596
ninoderkinderen 0:8d87bc453349 597 int pppOverEthernetOpen(struct netif *ethif, const char *service_name, const char *concentrator_name, void (*linkStatusCB)(void *ctx, int errCode, void *arg), void *linkStatusCtx)
ninoderkinderen 0:8d87bc453349 598 {
ninoderkinderen 0:8d87bc453349 599 PPPControl *pc;
ninoderkinderen 0:8d87bc453349 600 int pd;
ninoderkinderen 0:8d87bc453349 601
ninoderkinderen 0:8d87bc453349 602 LWIP_UNUSED_ARG(service_name);
ninoderkinderen 0:8d87bc453349 603 LWIP_UNUSED_ARG(concentrator_name);
ninoderkinderen 0:8d87bc453349 604
ninoderkinderen 0:8d87bc453349 605 if (linkStatusCB == NULL) {
ninoderkinderen 0:8d87bc453349 606 /* PPP is single-threaded: without a callback,
ninoderkinderen 0:8d87bc453349 607 * there is no way to know when the link is up. */
ninoderkinderen 0:8d87bc453349 608 return PPPERR_PARAM;
ninoderkinderen 0:8d87bc453349 609 }
ninoderkinderen 0:8d87bc453349 610
ninoderkinderen 0:8d87bc453349 611 /* Find a free PPP session descriptor. Critical region? */
ninoderkinderen 0:8d87bc453349 612 for (pd = 0; pd < NUM_PPP && pppControl[pd].openFlag != 0; pd++);
ninoderkinderen 0:8d87bc453349 613 if (pd >= NUM_PPP) {
ninoderkinderen 0:8d87bc453349 614 pd = PPPERR_OPEN;
ninoderkinderen 0:8d87bc453349 615 } else {
ninoderkinderen 0:8d87bc453349 616 pc = &pppControl[pd];
ninoderkinderen 0:8d87bc453349 617 memset(pc, 0, sizeof(PPPControl));
ninoderkinderen 0:8d87bc453349 618 pc->openFlag = 1;
ninoderkinderen 0:8d87bc453349 619 pc->ethif = ethif;
ninoderkinderen 0:8d87bc453349 620
ninoderkinderen 0:8d87bc453349 621 pc->linkStatusCB = linkStatusCB;
ninoderkinderen 0:8d87bc453349 622 pc->linkStatusCtx = linkStatusCtx;
ninoderkinderen 0:8d87bc453349 623
ninoderkinderen 0:8d87bc453349 624 lcp_wantoptions[pd].mru = PPPOE_MAXMTU;
ninoderkinderen 0:8d87bc453349 625 lcp_wantoptions[pd].neg_asyncmap = 0;
ninoderkinderen 0:8d87bc453349 626 lcp_wantoptions[pd].neg_pcompression = 0;
ninoderkinderen 0:8d87bc453349 627 lcp_wantoptions[pd].neg_accompression = 0;
ninoderkinderen 0:8d87bc453349 628
ninoderkinderen 0:8d87bc453349 629 lcp_allowoptions[pd].mru = PPPOE_MAXMTU;
ninoderkinderen 0:8d87bc453349 630 lcp_allowoptions[pd].neg_asyncmap = 0;
ninoderkinderen 0:8d87bc453349 631 lcp_allowoptions[pd].neg_pcompression = 0;
ninoderkinderen 0:8d87bc453349 632 lcp_allowoptions[pd].neg_accompression = 0;
ninoderkinderen 0:8d87bc453349 633
ninoderkinderen 0:8d87bc453349 634 if(pppoe_create(ethif, pd, pppOverEthernetLinkStatusCB, &pc->pppoe_sc) != ERR_OK) {
ninoderkinderen 0:8d87bc453349 635 pc->openFlag = 0;
ninoderkinderen 0:8d87bc453349 636 return PPPERR_OPEN;
ninoderkinderen 0:8d87bc453349 637 }
ninoderkinderen 0:8d87bc453349 638
ninoderkinderen 0:8d87bc453349 639 pppoe_connect(pc->pppoe_sc);
ninoderkinderen 0:8d87bc453349 640 }
ninoderkinderen 0:8d87bc453349 641
ninoderkinderen 0:8d87bc453349 642 return pd;
ninoderkinderen 0:8d87bc453349 643 }
ninoderkinderen 0:8d87bc453349 644 #endif /* PPPOE_SUPPORT */
ninoderkinderen 0:8d87bc453349 645
ninoderkinderen 0:8d87bc453349 646
ninoderkinderen 0:8d87bc453349 647 /* Close a PPP connection and release the descriptor.
ninoderkinderen 0:8d87bc453349 648 * Any outstanding packets in the queues are dropped.
ninoderkinderen 0:8d87bc453349 649 * Return 0 on success, an error code on failure. */
ninoderkinderen 0:8d87bc453349 650 int
ninoderkinderen 0:8d87bc453349 651 pppClose(int pd)
ninoderkinderen 0:8d87bc453349 652 {
ninoderkinderen 0:8d87bc453349 653 PPPControl *pc = &pppControl[pd];
ninoderkinderen 0:8d87bc453349 654 int st = 0;
ninoderkinderen 0:8d87bc453349 655
ninoderkinderen 0:8d87bc453349 656 PPPDEBUG(LOG_DEBUG, ("pppClose() called\n"));
ninoderkinderen 0:8d87bc453349 657
ninoderkinderen 0:8d87bc453349 658 /* Disconnect */
ninoderkinderen 0:8d87bc453349 659 #if PPPOE_SUPPORT
ninoderkinderen 0:8d87bc453349 660 if(pc->ethif) {
ninoderkinderen 0:8d87bc453349 661 PPPDEBUG(LOG_DEBUG, ("pppClose: unit %d kill_link -> pppStop\n", pd));
ninoderkinderen 0:8d87bc453349 662 pc->errCode = PPPERR_USER;
ninoderkinderen 0:8d87bc453349 663 /* This will leave us at PHASE_DEAD. */
ninoderkinderen 0:8d87bc453349 664 pppStop(pd);
ninoderkinderen 0:8d87bc453349 665 } else
ninoderkinderen 0:8d87bc453349 666 #endif /* PPPOE_SUPPORT */
ninoderkinderen 0:8d87bc453349 667 {
ninoderkinderen 0:8d87bc453349 668 #if PPPOS_SUPPORT
ninoderkinderen 0:8d87bc453349 669 PPPDEBUG(LOG_DEBUG, ("pppClose: unit %d kill_link -> pppStop\n", pd));
ninoderkinderen 0:8d87bc453349 670 pc->errCode = PPPERR_USER;
ninoderkinderen 0:8d87bc453349 671 /* This will leave us at PHASE_DEAD. */
ninoderkinderen 0:8d87bc453349 672 pppStop(pd);
ninoderkinderen 0:8d87bc453349 673 pppRecvWakeup(pd);
ninoderkinderen 0:8d87bc453349 674 #endif /* PPPOS_SUPPORT */
ninoderkinderen 0:8d87bc453349 675 }
ninoderkinderen 0:8d87bc453349 676
ninoderkinderen 0:8d87bc453349 677 return st;
ninoderkinderen 0:8d87bc453349 678 }
ninoderkinderen 0:8d87bc453349 679
ninoderkinderen 0:8d87bc453349 680 /* This function is called when carrier is lost on the PPP channel. */
ninoderkinderen 0:8d87bc453349 681 void
ninoderkinderen 0:8d87bc453349 682 pppSigHUP(int pd)
ninoderkinderen 0:8d87bc453349 683 {
ninoderkinderen 0:8d87bc453349 684 #if PPPOE_SUPPORT
ninoderkinderen 0:8d87bc453349 685 PPPControl *pc = &pppControl[pd];
ninoderkinderen 0:8d87bc453349 686 if(pc->ethif) {
ninoderkinderen 0:8d87bc453349 687 PPPDEBUG(LOG_DEBUG, ("pppSigHUP: unit %d sig_hup -> pppHupCB\n", pd));
ninoderkinderen 0:8d87bc453349 688 pppHup(pd);
ninoderkinderen 0:8d87bc453349 689 } else
ninoderkinderen 0:8d87bc453349 690 #endif /* PPPOE_SUPPORT */
ninoderkinderen 0:8d87bc453349 691 {
ninoderkinderen 0:8d87bc453349 692 #if PPPOS_SUPPORT
ninoderkinderen 0:8d87bc453349 693 PPPDEBUG(LOG_DEBUG, ("pppSigHUP: unit %d sig_hup -> pppHupCB\n", pd));
ninoderkinderen 0:8d87bc453349 694 pppHup(pd);
ninoderkinderen 0:8d87bc453349 695 pppRecvWakeup(pd);
ninoderkinderen 0:8d87bc453349 696 #endif /* PPPOS_SUPPORT */
ninoderkinderen 0:8d87bc453349 697 }
ninoderkinderen 0:8d87bc453349 698 }
ninoderkinderen 0:8d87bc453349 699
ninoderkinderen 0:8d87bc453349 700 #if PPPOS_SUPPORT
ninoderkinderen 0:8d87bc453349 701 static void
ninoderkinderen 0:8d87bc453349 702 nPut(PPPControl *pc, struct pbuf *nb)
ninoderkinderen 0:8d87bc453349 703 {
ninoderkinderen 0:8d87bc453349 704 struct pbuf *b;
ninoderkinderen 0:8d87bc453349 705 int c;
ninoderkinderen 0:8d87bc453349 706
ninoderkinderen 0:8d87bc453349 707 for(b = nb; b != NULL; b = b->next) {
ninoderkinderen 0:8d87bc453349 708 if((c = sio_write(pc->fd, (u8_t *)b->payload, b->len)) != b->len) {
ninoderkinderen 0:8d87bc453349 709 PPPDEBUG(LOG_WARNING,
ninoderkinderen 0:8d87bc453349 710 ("PPP nPut: incomplete sio_write(fd:%"SZT_F", len:%d, c: 0x%"X8_F") c = %d\n", (size_t)pc->fd, b->len, c, c));
ninoderkinderen 0:8d87bc453349 711 LINK_STATS_INC(link.err);
ninoderkinderen 0:8d87bc453349 712 pc->lastXMit = 0; /* prepend PPP_FLAG to next packet */
ninoderkinderen 0:8d87bc453349 713 snmp_inc_ifoutdiscards(&pc->netif);
ninoderkinderen 0:8d87bc453349 714 pbuf_free(nb);
ninoderkinderen 0:8d87bc453349 715 return;
ninoderkinderen 0:8d87bc453349 716 }
ninoderkinderen 0:8d87bc453349 717 }
ninoderkinderen 0:8d87bc453349 718
ninoderkinderen 0:8d87bc453349 719 snmp_add_ifoutoctets(&pc->netif, nb->tot_len);
ninoderkinderen 0:8d87bc453349 720 snmp_inc_ifoutucastpkts(&pc->netif);
ninoderkinderen 0:8d87bc453349 721 pbuf_free(nb);
ninoderkinderen 0:8d87bc453349 722 LINK_STATS_INC(link.xmit);
ninoderkinderen 0:8d87bc453349 723 }
ninoderkinderen 0:8d87bc453349 724
ninoderkinderen 0:8d87bc453349 725 /*
ninoderkinderen 0:8d87bc453349 726 * pppAppend - append given character to end of given pbuf. If outACCM
ninoderkinderen 0:8d87bc453349 727 * is not NULL and the character needs to be escaped, do so.
ninoderkinderen 0:8d87bc453349 728 * If pbuf is full, append another.
ninoderkinderen 0:8d87bc453349 729 * Return the current pbuf.
ninoderkinderen 0:8d87bc453349 730 */
ninoderkinderen 0:8d87bc453349 731 static struct pbuf *
ninoderkinderen 0:8d87bc453349 732 pppAppend(u_char c, struct pbuf *nb, ext_accm *outACCM)
ninoderkinderen 0:8d87bc453349 733 {
ninoderkinderen 0:8d87bc453349 734 struct pbuf *tb = nb;
ninoderkinderen 0:8d87bc453349 735
ninoderkinderen 0:8d87bc453349 736 /* Make sure there is room for the character and an escape code.
ninoderkinderen 0:8d87bc453349 737 * Sure we don't quite fill the buffer if the character doesn't
ninoderkinderen 0:8d87bc453349 738 * get escaped but is one character worth complicating this? */
ninoderkinderen 0:8d87bc453349 739 /* Note: We assume no packet header. */
ninoderkinderen 0:8d87bc453349 740 if (nb && (PBUF_POOL_BUFSIZE - nb->len) < 2) {
ninoderkinderen 0:8d87bc453349 741 tb = pbuf_alloc(PBUF_RAW, 0, PBUF_POOL);
ninoderkinderen 0:8d87bc453349 742 if (tb) {
ninoderkinderen 0:8d87bc453349 743 nb->next = tb;
ninoderkinderen 0:8d87bc453349 744 } else {
ninoderkinderen 0:8d87bc453349 745 LINK_STATS_INC(link.memerr);
ninoderkinderen 0:8d87bc453349 746 }
ninoderkinderen 0:8d87bc453349 747 nb = tb;
ninoderkinderen 0:8d87bc453349 748 }
ninoderkinderen 0:8d87bc453349 749
ninoderkinderen 0:8d87bc453349 750 if (nb) {
ninoderkinderen 0:8d87bc453349 751 if (outACCM && ESCAPE_P(*outACCM, c)) {
ninoderkinderen 0:8d87bc453349 752 *((u_char*)nb->payload + nb->len++) = PPP_ESCAPE;
ninoderkinderen 0:8d87bc453349 753 *((u_char*)nb->payload + nb->len++) = c ^ PPP_TRANS;
ninoderkinderen 0:8d87bc453349 754 } else {
ninoderkinderen 0:8d87bc453349 755 *((u_char*)nb->payload + nb->len++) = c;
ninoderkinderen 0:8d87bc453349 756 }
ninoderkinderen 0:8d87bc453349 757 }
ninoderkinderen 0:8d87bc453349 758
ninoderkinderen 0:8d87bc453349 759 return tb;
ninoderkinderen 0:8d87bc453349 760 }
ninoderkinderen 0:8d87bc453349 761 #endif /* PPPOS_SUPPORT */
ninoderkinderen 0:8d87bc453349 762
ninoderkinderen 0:8d87bc453349 763 #if PPPOE_SUPPORT
ninoderkinderen 0:8d87bc453349 764 static err_t
ninoderkinderen 0:8d87bc453349 765 pppifOutputOverEthernet(int pd, struct pbuf *p)
ninoderkinderen 0:8d87bc453349 766 {
ninoderkinderen 0:8d87bc453349 767 PPPControl *pc = &pppControl[pd];
ninoderkinderen 0:8d87bc453349 768 struct pbuf *pb;
ninoderkinderen 0:8d87bc453349 769 u_short protocol = PPP_IP;
ninoderkinderen 0:8d87bc453349 770 int i=0;
ninoderkinderen 0:8d87bc453349 771 u16_t tot_len;
ninoderkinderen 0:8d87bc453349 772
ninoderkinderen 0:8d87bc453349 773 /* @todo: try to use pbuf_header() here! */
ninoderkinderen 0:8d87bc453349 774 pb = pbuf_alloc(PBUF_LINK, PPPOE_HDRLEN + sizeof(protocol), PBUF_RAM);
ninoderkinderen 0:8d87bc453349 775 if(!pb) {
ninoderkinderen 0:8d87bc453349 776 LINK_STATS_INC(link.memerr);
ninoderkinderen 0:8d87bc453349 777 LINK_STATS_INC(link.proterr);
ninoderkinderen 0:8d87bc453349 778 snmp_inc_ifoutdiscards(&pc->netif);
ninoderkinderen 0:8d87bc453349 779 return ERR_MEM;
ninoderkinderen 0:8d87bc453349 780 }
ninoderkinderen 0:8d87bc453349 781
ninoderkinderen 0:8d87bc453349 782 pbuf_header(pb, -(s16_t)PPPOE_HDRLEN);
ninoderkinderen 0:8d87bc453349 783
ninoderkinderen 0:8d87bc453349 784 pc->lastXMit = sys_jiffies();
ninoderkinderen 0:8d87bc453349 785
ninoderkinderen 0:8d87bc453349 786 if (!pc->pcomp || protocol > 0xFF) {
ninoderkinderen 0:8d87bc453349 787 *((u_char*)pb->payload + i++) = (protocol >> 8) & 0xFF;
ninoderkinderen 0:8d87bc453349 788 }
ninoderkinderen 0:8d87bc453349 789 *((u_char*)pb->payload + i) = protocol & 0xFF;
ninoderkinderen 0:8d87bc453349 790
ninoderkinderen 0:8d87bc453349 791 pbuf_chain(pb, p);
ninoderkinderen 0:8d87bc453349 792 tot_len = pb->tot_len;
ninoderkinderen 0:8d87bc453349 793
ninoderkinderen 0:8d87bc453349 794 if(pppoe_xmit(pc->pppoe_sc, pb) != ERR_OK) {
ninoderkinderen 0:8d87bc453349 795 LINK_STATS_INC(link.err);
ninoderkinderen 0:8d87bc453349 796 snmp_inc_ifoutdiscards(&pc->netif);
ninoderkinderen 0:8d87bc453349 797 return PPPERR_DEVICE;
ninoderkinderen 0:8d87bc453349 798 }
ninoderkinderen 0:8d87bc453349 799
ninoderkinderen 0:8d87bc453349 800 snmp_add_ifoutoctets(&pc->netif, tot_len);
ninoderkinderen 0:8d87bc453349 801 snmp_inc_ifoutucastpkts(&pc->netif);
ninoderkinderen 0:8d87bc453349 802 LINK_STATS_INC(link.xmit);
ninoderkinderen 0:8d87bc453349 803 return ERR_OK;
ninoderkinderen 0:8d87bc453349 804 }
ninoderkinderen 0:8d87bc453349 805 #endif /* PPPOE_SUPPORT */
ninoderkinderen 0:8d87bc453349 806
ninoderkinderen 0:8d87bc453349 807 /* Send a packet on the given connection. */
ninoderkinderen 0:8d87bc453349 808 static err_t
ninoderkinderen 0:8d87bc453349 809 pppifOutput(struct netif *netif, struct pbuf *pb, ip_addr_t *ipaddr)
ninoderkinderen 0:8d87bc453349 810 {
ninoderkinderen 0:8d87bc453349 811 int pd = (int)(size_t)netif->state;
ninoderkinderen 0:8d87bc453349 812 PPPControl *pc = &pppControl[pd];
ninoderkinderen 0:8d87bc453349 813 #if PPPOS_SUPPORT
ninoderkinderen 0:8d87bc453349 814 u_short protocol = PPP_IP;
ninoderkinderen 0:8d87bc453349 815 u_int fcsOut = PPP_INITFCS;
ninoderkinderen 0:8d87bc453349 816 struct pbuf *headMB = NULL, *tailMB = NULL, *p;
ninoderkinderen 0:8d87bc453349 817 u_char c;
ninoderkinderen 0:8d87bc453349 818 #endif /* PPPOS_SUPPORT */
ninoderkinderen 0:8d87bc453349 819
ninoderkinderen 0:8d87bc453349 820 LWIP_UNUSED_ARG(ipaddr);
ninoderkinderen 0:8d87bc453349 821
ninoderkinderen 0:8d87bc453349 822 /* Validate parameters. */
ninoderkinderen 0:8d87bc453349 823 /* We let any protocol value go through - it can't hurt us
ninoderkinderen 0:8d87bc453349 824 * and the peer will just drop it if it's not accepting it. */
ninoderkinderen 0:8d87bc453349 825 if (pd < 0 || pd >= NUM_PPP || !pc->openFlag || !pb) {
ninoderkinderen 0:8d87bc453349 826 PPPDEBUG(LOG_WARNING, ("pppifOutput[%d]: bad parms prot=%d pb=%p\n",
ninoderkinderen 0:8d87bc453349 827 pd, PPP_IP, pb));
ninoderkinderen 0:8d87bc453349 828 LINK_STATS_INC(link.opterr);
ninoderkinderen 0:8d87bc453349 829 LINK_STATS_INC(link.drop);
ninoderkinderen 0:8d87bc453349 830 snmp_inc_ifoutdiscards(netif);
ninoderkinderen 0:8d87bc453349 831 return ERR_ARG;
ninoderkinderen 0:8d87bc453349 832 }
ninoderkinderen 0:8d87bc453349 833
ninoderkinderen 0:8d87bc453349 834 /* Check that the link is up. */
ninoderkinderen 0:8d87bc453349 835 if (lcp_phase[pd] == PHASE_DEAD) {
ninoderkinderen 0:8d87bc453349 836 PPPDEBUG(LOG_ERR, ("pppifOutput[%d]: link not up\n", pd));
ninoderkinderen 0:8d87bc453349 837 LINK_STATS_INC(link.rterr);
ninoderkinderen 0:8d87bc453349 838 LINK_STATS_INC(link.drop);
ninoderkinderen 0:8d87bc453349 839 snmp_inc_ifoutdiscards(netif);
ninoderkinderen 0:8d87bc453349 840 return ERR_RTE;
ninoderkinderen 0:8d87bc453349 841 }
ninoderkinderen 0:8d87bc453349 842
ninoderkinderen 0:8d87bc453349 843 #if PPPOE_SUPPORT
ninoderkinderen 0:8d87bc453349 844 if(pc->ethif) {
ninoderkinderen 0:8d87bc453349 845 return pppifOutputOverEthernet(pd, pb);
ninoderkinderen 0:8d87bc453349 846 }
ninoderkinderen 0:8d87bc453349 847 #endif /* PPPOE_SUPPORT */
ninoderkinderen 0:8d87bc453349 848
ninoderkinderen 0:8d87bc453349 849 #if PPPOS_SUPPORT
ninoderkinderen 0:8d87bc453349 850 /* Grab an output buffer. */
ninoderkinderen 0:8d87bc453349 851 headMB = pbuf_alloc(PBUF_RAW, 0, PBUF_POOL);
ninoderkinderen 0:8d87bc453349 852 if (headMB == NULL) {
ninoderkinderen 0:8d87bc453349 853 PPPDEBUG(LOG_WARNING, ("pppifOutput[%d]: first alloc fail\n", pd));
ninoderkinderen 0:8d87bc453349 854 LINK_STATS_INC(link.memerr);
ninoderkinderen 0:8d87bc453349 855 LINK_STATS_INC(link.drop);
ninoderkinderen 0:8d87bc453349 856 snmp_inc_ifoutdiscards(netif);
ninoderkinderen 0:8d87bc453349 857 return ERR_MEM;
ninoderkinderen 0:8d87bc453349 858 }
ninoderkinderen 0:8d87bc453349 859
ninoderkinderen 0:8d87bc453349 860 #if VJ_SUPPORT
ninoderkinderen 0:8d87bc453349 861 /*
ninoderkinderen 0:8d87bc453349 862 * Attempt Van Jacobson header compression if VJ is configured and
ninoderkinderen 0:8d87bc453349 863 * this is an IP packet.
ninoderkinderen 0:8d87bc453349 864 */
ninoderkinderen 0:8d87bc453349 865 if (protocol == PPP_IP && pc->vjEnabled) {
ninoderkinderen 0:8d87bc453349 866 switch (vj_compress_tcp(&pc->vjComp, pb)) {
ninoderkinderen 0:8d87bc453349 867 case TYPE_IP:
ninoderkinderen 0:8d87bc453349 868 /* No change...
ninoderkinderen 0:8d87bc453349 869 protocol = PPP_IP_PROTOCOL; */
ninoderkinderen 0:8d87bc453349 870 break;
ninoderkinderen 0:8d87bc453349 871 case TYPE_COMPRESSED_TCP:
ninoderkinderen 0:8d87bc453349 872 protocol = PPP_VJC_COMP;
ninoderkinderen 0:8d87bc453349 873 break;
ninoderkinderen 0:8d87bc453349 874 case TYPE_UNCOMPRESSED_TCP:
ninoderkinderen 0:8d87bc453349 875 protocol = PPP_VJC_UNCOMP;
ninoderkinderen 0:8d87bc453349 876 break;
ninoderkinderen 0:8d87bc453349 877 default:
ninoderkinderen 0:8d87bc453349 878 PPPDEBUG(LOG_WARNING, ("pppifOutput[%d]: bad IP packet\n", pd));
ninoderkinderen 0:8d87bc453349 879 LINK_STATS_INC(link.proterr);
ninoderkinderen 0:8d87bc453349 880 LINK_STATS_INC(link.drop);
ninoderkinderen 0:8d87bc453349 881 snmp_inc_ifoutdiscards(netif);
ninoderkinderen 0:8d87bc453349 882 pbuf_free(headMB);
ninoderkinderen 0:8d87bc453349 883 return ERR_VAL;
ninoderkinderen 0:8d87bc453349 884 }
ninoderkinderen 0:8d87bc453349 885 }
ninoderkinderen 0:8d87bc453349 886 #endif /* VJ_SUPPORT */
ninoderkinderen 0:8d87bc453349 887
ninoderkinderen 0:8d87bc453349 888 tailMB = headMB;
ninoderkinderen 0:8d87bc453349 889
ninoderkinderen 0:8d87bc453349 890 /* Build the PPP header. */
ninoderkinderen 0:8d87bc453349 891 if ((sys_jiffies() - pc->lastXMit) >= PPP_MAXIDLEFLAG) {
ninoderkinderen 0:8d87bc453349 892 tailMB = pppAppend(PPP_FLAG, tailMB, NULL);
ninoderkinderen 0:8d87bc453349 893 }
ninoderkinderen 0:8d87bc453349 894
ninoderkinderen 0:8d87bc453349 895 pc->lastXMit = sys_jiffies();
ninoderkinderen 0:8d87bc453349 896 if (!pc->accomp) {
ninoderkinderen 0:8d87bc453349 897 fcsOut = PPP_FCS(fcsOut, PPP_ALLSTATIONS);
ninoderkinderen 0:8d87bc453349 898 tailMB = pppAppend(PPP_ALLSTATIONS, tailMB, &pc->outACCM);
ninoderkinderen 0:8d87bc453349 899 fcsOut = PPP_FCS(fcsOut, PPP_UI);
ninoderkinderen 0:8d87bc453349 900 tailMB = pppAppend(PPP_UI, tailMB, &pc->outACCM);
ninoderkinderen 0:8d87bc453349 901 }
ninoderkinderen 0:8d87bc453349 902 if (!pc->pcomp || protocol > 0xFF) {
ninoderkinderen 0:8d87bc453349 903 c = (protocol >> 8) & 0xFF;
ninoderkinderen 0:8d87bc453349 904 fcsOut = PPP_FCS(fcsOut, c);
ninoderkinderen 0:8d87bc453349 905 tailMB = pppAppend(c, tailMB, &pc->outACCM);
ninoderkinderen 0:8d87bc453349 906 }
ninoderkinderen 0:8d87bc453349 907 c = protocol & 0xFF;
ninoderkinderen 0:8d87bc453349 908 fcsOut = PPP_FCS(fcsOut, c);
ninoderkinderen 0:8d87bc453349 909 tailMB = pppAppend(c, tailMB, &pc->outACCM);
ninoderkinderen 0:8d87bc453349 910
ninoderkinderen 0:8d87bc453349 911 /* Load packet. */
ninoderkinderen 0:8d87bc453349 912 for(p = pb; p; p = p->next) {
ninoderkinderen 0:8d87bc453349 913 int n;
ninoderkinderen 0:8d87bc453349 914 u_char *sPtr;
ninoderkinderen 0:8d87bc453349 915
ninoderkinderen 0:8d87bc453349 916 sPtr = (u_char*)p->payload;
ninoderkinderen 0:8d87bc453349 917 n = p->len;
ninoderkinderen 0:8d87bc453349 918 while (n-- > 0) {
ninoderkinderen 0:8d87bc453349 919 c = *sPtr++;
ninoderkinderen 0:8d87bc453349 920
ninoderkinderen 0:8d87bc453349 921 /* Update FCS before checking for special characters. */
ninoderkinderen 0:8d87bc453349 922 fcsOut = PPP_FCS(fcsOut, c);
ninoderkinderen 0:8d87bc453349 923
ninoderkinderen 0:8d87bc453349 924 /* Copy to output buffer escaping special characters. */
ninoderkinderen 0:8d87bc453349 925 tailMB = pppAppend(c, tailMB, &pc->outACCM);
ninoderkinderen 0:8d87bc453349 926 }
ninoderkinderen 0:8d87bc453349 927 }
ninoderkinderen 0:8d87bc453349 928
ninoderkinderen 0:8d87bc453349 929 /* Add FCS and trailing flag. */
ninoderkinderen 0:8d87bc453349 930 c = ~fcsOut & 0xFF;
ninoderkinderen 0:8d87bc453349 931 tailMB = pppAppend(c, tailMB, &pc->outACCM);
ninoderkinderen 0:8d87bc453349 932 c = (~fcsOut >> 8) & 0xFF;
ninoderkinderen 0:8d87bc453349 933 tailMB = pppAppend(c, tailMB, &pc->outACCM);
ninoderkinderen 0:8d87bc453349 934 tailMB = pppAppend(PPP_FLAG, tailMB, NULL);
ninoderkinderen 0:8d87bc453349 935
ninoderkinderen 0:8d87bc453349 936 /* If we failed to complete the packet, throw it away. */
ninoderkinderen 0:8d87bc453349 937 if (!tailMB) {
ninoderkinderen 0:8d87bc453349 938 PPPDEBUG(LOG_WARNING,
ninoderkinderen 0:8d87bc453349 939 ("pppifOutput[%d]: Alloc err - dropping proto=%d\n",
ninoderkinderen 0:8d87bc453349 940 pd, protocol));
ninoderkinderen 0:8d87bc453349 941 pbuf_free(headMB);
ninoderkinderen 0:8d87bc453349 942 LINK_STATS_INC(link.memerr);
ninoderkinderen 0:8d87bc453349 943 LINK_STATS_INC(link.drop);
ninoderkinderen 0:8d87bc453349 944 snmp_inc_ifoutdiscards(netif);
ninoderkinderen 0:8d87bc453349 945 return ERR_MEM;
ninoderkinderen 0:8d87bc453349 946 }
ninoderkinderen 0:8d87bc453349 947
ninoderkinderen 0:8d87bc453349 948 /* Send it. */
ninoderkinderen 0:8d87bc453349 949 PPPDEBUG(LOG_INFO, ("pppifOutput[%d]: proto=0x%"X16_F"\n", pd, protocol));
ninoderkinderen 0:8d87bc453349 950
ninoderkinderen 0:8d87bc453349 951 nPut(pc, headMB);
ninoderkinderen 0:8d87bc453349 952 #endif /* PPPOS_SUPPORT */
ninoderkinderen 0:8d87bc453349 953
ninoderkinderen 0:8d87bc453349 954 return ERR_OK;
ninoderkinderen 0:8d87bc453349 955 }
ninoderkinderen 0:8d87bc453349 956
ninoderkinderen 0:8d87bc453349 957 /* Get and set parameters for the given connection.
ninoderkinderen 0:8d87bc453349 958 * Return 0 on success, an error code on failure. */
ninoderkinderen 0:8d87bc453349 959 int
ninoderkinderen 0:8d87bc453349 960 pppIOCtl(int pd, int cmd, void *arg)
ninoderkinderen 0:8d87bc453349 961 {
ninoderkinderen 0:8d87bc453349 962 PPPControl *pc = &pppControl[pd];
ninoderkinderen 0:8d87bc453349 963 int st = 0;
ninoderkinderen 0:8d87bc453349 964
ninoderkinderen 0:8d87bc453349 965 if (pd < 0 || pd >= NUM_PPP) {
ninoderkinderen 0:8d87bc453349 966 st = PPPERR_PARAM;
ninoderkinderen 0:8d87bc453349 967 } else {
ninoderkinderen 0:8d87bc453349 968 switch(cmd) {
ninoderkinderen 0:8d87bc453349 969 case PPPCTLG_UPSTATUS: /* Get the PPP up status. */
ninoderkinderen 0:8d87bc453349 970 if (arg) {
ninoderkinderen 0:8d87bc453349 971 *(int *)arg = (int)(pc->if_up);
ninoderkinderen 0:8d87bc453349 972 } else {
ninoderkinderen 0:8d87bc453349 973 st = PPPERR_PARAM;
ninoderkinderen 0:8d87bc453349 974 }
ninoderkinderen 0:8d87bc453349 975 break;
ninoderkinderen 0:8d87bc453349 976 case PPPCTLS_ERRCODE: /* Set the PPP error code. */
ninoderkinderen 0:8d87bc453349 977 if (arg) {
ninoderkinderen 0:8d87bc453349 978 pc->errCode = *(int *)arg;
ninoderkinderen 0:8d87bc453349 979 } else {
ninoderkinderen 0:8d87bc453349 980 st = PPPERR_PARAM;
ninoderkinderen 0:8d87bc453349 981 }
ninoderkinderen 0:8d87bc453349 982 break;
ninoderkinderen 0:8d87bc453349 983 case PPPCTLG_ERRCODE: /* Get the PPP error code. */
ninoderkinderen 0:8d87bc453349 984 if (arg) {
ninoderkinderen 0:8d87bc453349 985 *(int *)arg = (int)(pc->errCode);
ninoderkinderen 0:8d87bc453349 986 } else {
ninoderkinderen 0:8d87bc453349 987 st = PPPERR_PARAM;
ninoderkinderen 0:8d87bc453349 988 }
ninoderkinderen 0:8d87bc453349 989 break;
ninoderkinderen 0:8d87bc453349 990 #if PPPOS_SUPPORT
ninoderkinderen 0:8d87bc453349 991 case PPPCTLG_FD: /* Get the fd associated with the ppp */
ninoderkinderen 0:8d87bc453349 992 if (arg) {
ninoderkinderen 0:8d87bc453349 993 *(sio_fd_t *)arg = pc->fd;
ninoderkinderen 0:8d87bc453349 994 } else {
ninoderkinderen 0:8d87bc453349 995 st = PPPERR_PARAM;
ninoderkinderen 0:8d87bc453349 996 }
ninoderkinderen 0:8d87bc453349 997 break;
ninoderkinderen 0:8d87bc453349 998 #endif /* PPPOS_SUPPORT */
ninoderkinderen 0:8d87bc453349 999 default:
ninoderkinderen 0:8d87bc453349 1000 st = PPPERR_PARAM;
ninoderkinderen 0:8d87bc453349 1001 break;
ninoderkinderen 0:8d87bc453349 1002 }
ninoderkinderen 0:8d87bc453349 1003 }
ninoderkinderen 0:8d87bc453349 1004
ninoderkinderen 0:8d87bc453349 1005 return st;
ninoderkinderen 0:8d87bc453349 1006 }
ninoderkinderen 0:8d87bc453349 1007
ninoderkinderen 0:8d87bc453349 1008 /*
ninoderkinderen 0:8d87bc453349 1009 * Return the Maximum Transmission Unit for the given PPP connection.
ninoderkinderen 0:8d87bc453349 1010 */
ninoderkinderen 0:8d87bc453349 1011 u_short
ninoderkinderen 0:8d87bc453349 1012 pppMTU(int pd)
ninoderkinderen 0:8d87bc453349 1013 {
ninoderkinderen 0:8d87bc453349 1014 PPPControl *pc = &pppControl[pd];
ninoderkinderen 0:8d87bc453349 1015 u_short st;
ninoderkinderen 0:8d87bc453349 1016
ninoderkinderen 0:8d87bc453349 1017 /* Validate parameters. */
ninoderkinderen 0:8d87bc453349 1018 if (pd < 0 || pd >= NUM_PPP || !pc->openFlag) {
ninoderkinderen 0:8d87bc453349 1019 st = 0;
ninoderkinderen 0:8d87bc453349 1020 } else {
ninoderkinderen 0:8d87bc453349 1021 st = pc->mtu;
ninoderkinderen 0:8d87bc453349 1022 }
ninoderkinderen 0:8d87bc453349 1023
ninoderkinderen 0:8d87bc453349 1024 return st;
ninoderkinderen 0:8d87bc453349 1025 }
ninoderkinderen 0:8d87bc453349 1026
ninoderkinderen 0:8d87bc453349 1027 #if PPPOE_SUPPORT
ninoderkinderen 0:8d87bc453349 1028 int
ninoderkinderen 0:8d87bc453349 1029 pppWriteOverEthernet(int pd, const u_char *s, int n)
ninoderkinderen 0:8d87bc453349 1030 {
ninoderkinderen 0:8d87bc453349 1031 PPPControl *pc = &pppControl[pd];
ninoderkinderen 0:8d87bc453349 1032 struct pbuf *pb;
ninoderkinderen 0:8d87bc453349 1033
ninoderkinderen 0:8d87bc453349 1034 /* skip address & flags */
ninoderkinderen 0:8d87bc453349 1035 s += 2;
ninoderkinderen 0:8d87bc453349 1036 n -= 2;
ninoderkinderen 0:8d87bc453349 1037
ninoderkinderen 0:8d87bc453349 1038 LWIP_ASSERT("PPPOE_HDRLEN + n <= 0xffff", PPPOE_HDRLEN + n <= 0xffff);
ninoderkinderen 0:8d87bc453349 1039 pb = pbuf_alloc(PBUF_LINK, (u16_t)(PPPOE_HDRLEN + n), PBUF_RAM);
ninoderkinderen 0:8d87bc453349 1040 if(!pb) {
ninoderkinderen 0:8d87bc453349 1041 LINK_STATS_INC(link.memerr);
ninoderkinderen 0:8d87bc453349 1042 LINK_STATS_INC(link.proterr);
ninoderkinderen 0:8d87bc453349 1043 snmp_inc_ifoutdiscards(&pc->netif);
ninoderkinderen 0:8d87bc453349 1044 return PPPERR_ALLOC;
ninoderkinderen 0:8d87bc453349 1045 }
ninoderkinderen 0:8d87bc453349 1046
ninoderkinderen 0:8d87bc453349 1047 pbuf_header(pb, -(s16_t)PPPOE_HDRLEN);
ninoderkinderen 0:8d87bc453349 1048
ninoderkinderen 0:8d87bc453349 1049 pc->lastXMit = sys_jiffies();
ninoderkinderen 0:8d87bc453349 1050
ninoderkinderen 0:8d87bc453349 1051 MEMCPY(pb->payload, s, n);
ninoderkinderen 0:8d87bc453349 1052
ninoderkinderen 0:8d87bc453349 1053 if(pppoe_xmit(pc->pppoe_sc, pb) != ERR_OK) {
ninoderkinderen 0:8d87bc453349 1054 LINK_STATS_INC(link.err);
ninoderkinderen 0:8d87bc453349 1055 snmp_inc_ifoutdiscards(&pc->netif);
ninoderkinderen 0:8d87bc453349 1056 return PPPERR_DEVICE;
ninoderkinderen 0:8d87bc453349 1057 }
ninoderkinderen 0:8d87bc453349 1058
ninoderkinderen 0:8d87bc453349 1059 snmp_add_ifoutoctets(&pc->netif, (u16_t)n);
ninoderkinderen 0:8d87bc453349 1060 snmp_inc_ifoutucastpkts(&pc->netif);
ninoderkinderen 0:8d87bc453349 1061 LINK_STATS_INC(link.xmit);
ninoderkinderen 0:8d87bc453349 1062 return PPPERR_NONE;
ninoderkinderen 0:8d87bc453349 1063 }
ninoderkinderen 0:8d87bc453349 1064 #endif /* PPPOE_SUPPORT */
ninoderkinderen 0:8d87bc453349 1065
ninoderkinderen 0:8d87bc453349 1066 /*
ninoderkinderen 0:8d87bc453349 1067 * Write n characters to a ppp link.
ninoderkinderen 0:8d87bc453349 1068 * RETURN: >= 0 Number of characters written
ninoderkinderen 0:8d87bc453349 1069 * -1 Failed to write to device
ninoderkinderen 0:8d87bc453349 1070 */
ninoderkinderen 0:8d87bc453349 1071 int
ninoderkinderen 0:8d87bc453349 1072 pppWrite(int pd, const u_char *s, int n)
ninoderkinderen 0:8d87bc453349 1073 {
ninoderkinderen 0:8d87bc453349 1074 PPPControl *pc = &pppControl[pd];
ninoderkinderen 0:8d87bc453349 1075 #if PPPOS_SUPPORT
ninoderkinderen 0:8d87bc453349 1076 u_char c;
ninoderkinderen 0:8d87bc453349 1077 u_int fcsOut;
ninoderkinderen 0:8d87bc453349 1078 struct pbuf *headMB, *tailMB;
ninoderkinderen 0:8d87bc453349 1079 #endif /* PPPOS_SUPPORT */
ninoderkinderen 0:8d87bc453349 1080
ninoderkinderen 0:8d87bc453349 1081 #if PPPOE_SUPPORT
ninoderkinderen 0:8d87bc453349 1082 if(pc->ethif) {
ninoderkinderen 0:8d87bc453349 1083 return pppWriteOverEthernet(pd, s, n);
ninoderkinderen 0:8d87bc453349 1084 }
ninoderkinderen 0:8d87bc453349 1085 #endif /* PPPOE_SUPPORT */
ninoderkinderen 0:8d87bc453349 1086
ninoderkinderen 0:8d87bc453349 1087 #if PPPOS_SUPPORT
ninoderkinderen 0:8d87bc453349 1088 headMB = pbuf_alloc(PBUF_RAW, 0, PBUF_POOL);
ninoderkinderen 0:8d87bc453349 1089 if (headMB == NULL) {
ninoderkinderen 0:8d87bc453349 1090 LINK_STATS_INC(link.memerr);
ninoderkinderen 0:8d87bc453349 1091 LINK_STATS_INC(link.proterr);
ninoderkinderen 0:8d87bc453349 1092 snmp_inc_ifoutdiscards(&pc->netif);
ninoderkinderen 0:8d87bc453349 1093 return PPPERR_ALLOC;
ninoderkinderen 0:8d87bc453349 1094 }
ninoderkinderen 0:8d87bc453349 1095
ninoderkinderen 0:8d87bc453349 1096 tailMB = headMB;
ninoderkinderen 0:8d87bc453349 1097
ninoderkinderen 0:8d87bc453349 1098 /* If the link has been idle, we'll send a fresh flag character to
ninoderkinderen 0:8d87bc453349 1099 * flush any noise. */
ninoderkinderen 0:8d87bc453349 1100 if ((sys_jiffies() - pc->lastXMit) >= PPP_MAXIDLEFLAG) {
ninoderkinderen 0:8d87bc453349 1101 tailMB = pppAppend(PPP_FLAG, tailMB, NULL);
ninoderkinderen 0:8d87bc453349 1102 }
ninoderkinderen 0:8d87bc453349 1103 pc->lastXMit = sys_jiffies();
ninoderkinderen 0:8d87bc453349 1104
ninoderkinderen 0:8d87bc453349 1105 fcsOut = PPP_INITFCS;
ninoderkinderen 0:8d87bc453349 1106 /* Load output buffer. */
ninoderkinderen 0:8d87bc453349 1107 while (n-- > 0) {
ninoderkinderen 0:8d87bc453349 1108 c = *s++;
ninoderkinderen 0:8d87bc453349 1109
ninoderkinderen 0:8d87bc453349 1110 /* Update FCS before checking for special characters. */
ninoderkinderen 0:8d87bc453349 1111 fcsOut = PPP_FCS(fcsOut, c);
ninoderkinderen 0:8d87bc453349 1112
ninoderkinderen 0:8d87bc453349 1113 /* Copy to output buffer escaping special characters. */
ninoderkinderen 0:8d87bc453349 1114 tailMB = pppAppend(c, tailMB, &pc->outACCM);
ninoderkinderen 0:8d87bc453349 1115 }
ninoderkinderen 0:8d87bc453349 1116
ninoderkinderen 0:8d87bc453349 1117 /* Add FCS and trailing flag. */
ninoderkinderen 0:8d87bc453349 1118 c = ~fcsOut & 0xFF;
ninoderkinderen 0:8d87bc453349 1119 tailMB = pppAppend(c, tailMB, &pc->outACCM);
ninoderkinderen 0:8d87bc453349 1120 c = (~fcsOut >> 8) & 0xFF;
ninoderkinderen 0:8d87bc453349 1121 tailMB = pppAppend(c, tailMB, &pc->outACCM);
ninoderkinderen 0:8d87bc453349 1122 tailMB = pppAppend(PPP_FLAG, tailMB, NULL);
ninoderkinderen 0:8d87bc453349 1123
ninoderkinderen 0:8d87bc453349 1124 /* If we failed to complete the packet, throw it away.
ninoderkinderen 0:8d87bc453349 1125 * Otherwise send it. */
ninoderkinderen 0:8d87bc453349 1126 if (!tailMB) {
ninoderkinderen 0:8d87bc453349 1127 PPPDEBUG(LOG_WARNING,
ninoderkinderen 0:8d87bc453349 1128 ("pppWrite[%d]: Alloc err - dropping pbuf len=%d\n", pd, headMB->len));
ninoderkinderen 0:8d87bc453349 1129 /*"pppWrite[%d]: Alloc err - dropping %d:%.*H", pd, headMB->len, LWIP_MIN(headMB->len * 2, 40), headMB->payload)); */
ninoderkinderen 0:8d87bc453349 1130 pbuf_free(headMB);
ninoderkinderen 0:8d87bc453349 1131 LINK_STATS_INC(link.memerr);
ninoderkinderen 0:8d87bc453349 1132 LINK_STATS_INC(link.proterr);
ninoderkinderen 0:8d87bc453349 1133 snmp_inc_ifoutdiscards(&pc->netif);
ninoderkinderen 0:8d87bc453349 1134 return PPPERR_ALLOC;
ninoderkinderen 0:8d87bc453349 1135 }
ninoderkinderen 0:8d87bc453349 1136
ninoderkinderen 0:8d87bc453349 1137 PPPDEBUG(LOG_INFO, ("pppWrite[%d]: len=%d\n", pd, headMB->len));
ninoderkinderen 0:8d87bc453349 1138 /* "pppWrite[%d]: %d:%.*H", pd, headMB->len, LWIP_MIN(headMB->len * 2, 40), headMB->payload)); */
ninoderkinderen 0:8d87bc453349 1139 nPut(pc, headMB);
ninoderkinderen 0:8d87bc453349 1140 #endif /* PPPOS_SUPPORT */
ninoderkinderen 0:8d87bc453349 1141
ninoderkinderen 0:8d87bc453349 1142 return PPPERR_NONE;
ninoderkinderen 0:8d87bc453349 1143 }
ninoderkinderen 0:8d87bc453349 1144
ninoderkinderen 0:8d87bc453349 1145 /*
ninoderkinderen 0:8d87bc453349 1146 * ppp_send_config - configure the transmit characteristics of
ninoderkinderen 0:8d87bc453349 1147 * the ppp interface.
ninoderkinderen 0:8d87bc453349 1148 */
ninoderkinderen 0:8d87bc453349 1149 void
ninoderkinderen 0:8d87bc453349 1150 ppp_send_config( int unit, u16_t mtu, u32_t asyncmap, int pcomp, int accomp)
ninoderkinderen 0:8d87bc453349 1151 {
ninoderkinderen 0:8d87bc453349 1152 PPPControl *pc = &pppControl[unit];
ninoderkinderen 0:8d87bc453349 1153 int i;
ninoderkinderen 0:8d87bc453349 1154
ninoderkinderen 0:8d87bc453349 1155 pc->mtu = mtu;
ninoderkinderen 0:8d87bc453349 1156 pc->pcomp = pcomp;
ninoderkinderen 0:8d87bc453349 1157 pc->accomp = accomp;
ninoderkinderen 0:8d87bc453349 1158
ninoderkinderen 0:8d87bc453349 1159 /* Load the ACCM bits for the 32 control codes. */
ninoderkinderen 0:8d87bc453349 1160 for (i = 0; i < 32/8; i++) {
ninoderkinderen 0:8d87bc453349 1161 pc->outACCM[i] = (u_char)((asyncmap >> (8 * i)) & 0xFF);
ninoderkinderen 0:8d87bc453349 1162 }
ninoderkinderen 0:8d87bc453349 1163 PPPDEBUG(LOG_INFO, ("ppp_send_config[%d]: outACCM=%X %X %X %X\n",
ninoderkinderen 0:8d87bc453349 1164 unit,
ninoderkinderen 0:8d87bc453349 1165 pc->outACCM[0], pc->outACCM[1], pc->outACCM[2], pc->outACCM[3]));
ninoderkinderen 0:8d87bc453349 1166 }
ninoderkinderen 0:8d87bc453349 1167
ninoderkinderen 0:8d87bc453349 1168
ninoderkinderen 0:8d87bc453349 1169 /*
ninoderkinderen 0:8d87bc453349 1170 * ppp_set_xaccm - set the extended transmit ACCM for the interface.
ninoderkinderen 0:8d87bc453349 1171 */
ninoderkinderen 0:8d87bc453349 1172 void
ninoderkinderen 0:8d87bc453349 1173 ppp_set_xaccm(int unit, ext_accm *accm)
ninoderkinderen 0:8d87bc453349 1174 {
ninoderkinderen 0:8d87bc453349 1175 SMEMCPY(pppControl[unit].outACCM, accm, sizeof(ext_accm));
ninoderkinderen 0:8d87bc453349 1176 PPPDEBUG(LOG_INFO, ("ppp_set_xaccm[%d]: outACCM=%X %X %X %X\n",
ninoderkinderen 0:8d87bc453349 1177 unit,
ninoderkinderen 0:8d87bc453349 1178 pppControl[unit].outACCM[0],
ninoderkinderen 0:8d87bc453349 1179 pppControl[unit].outACCM[1],
ninoderkinderen 0:8d87bc453349 1180 pppControl[unit].outACCM[2],
ninoderkinderen 0:8d87bc453349 1181 pppControl[unit].outACCM[3]));
ninoderkinderen 0:8d87bc453349 1182 }
ninoderkinderen 0:8d87bc453349 1183
ninoderkinderen 0:8d87bc453349 1184
ninoderkinderen 0:8d87bc453349 1185 /*
ninoderkinderen 0:8d87bc453349 1186 * ppp_recv_config - configure the receive-side characteristics of
ninoderkinderen 0:8d87bc453349 1187 * the ppp interface.
ninoderkinderen 0:8d87bc453349 1188 */
ninoderkinderen 0:8d87bc453349 1189 void
ninoderkinderen 0:8d87bc453349 1190 ppp_recv_config( int unit, int mru, u32_t asyncmap, int pcomp, int accomp)
ninoderkinderen 0:8d87bc453349 1191 {
ninoderkinderen 0:8d87bc453349 1192 PPPControl *pc = &pppControl[unit];
ninoderkinderen 0:8d87bc453349 1193 int i;
ninoderkinderen 0:8d87bc453349 1194 SYS_ARCH_DECL_PROTECT(lev);
ninoderkinderen 0:8d87bc453349 1195
ninoderkinderen 0:8d87bc453349 1196 LWIP_UNUSED_ARG(accomp);
ninoderkinderen 0:8d87bc453349 1197 LWIP_UNUSED_ARG(pcomp);
ninoderkinderen 0:8d87bc453349 1198 LWIP_UNUSED_ARG(mru);
ninoderkinderen 0:8d87bc453349 1199
ninoderkinderen 0:8d87bc453349 1200 /* Load the ACCM bits for the 32 control codes. */
ninoderkinderen 0:8d87bc453349 1201 SYS_ARCH_PROTECT(lev);
ninoderkinderen 0:8d87bc453349 1202 for (i = 0; i < 32 / 8; i++) {
ninoderkinderen 0:8d87bc453349 1203 /* @todo: does this work? ext_accm has been modified from pppd! */
ninoderkinderen 0:8d87bc453349 1204 pc->rx.inACCM[i] = (u_char)(asyncmap >> (i * 8));
ninoderkinderen 0:8d87bc453349 1205 }
ninoderkinderen 0:8d87bc453349 1206 SYS_ARCH_UNPROTECT(lev);
ninoderkinderen 0:8d87bc453349 1207 PPPDEBUG(LOG_INFO, ("ppp_recv_config[%d]: inACCM=%X %X %X %X\n",
ninoderkinderen 0:8d87bc453349 1208 unit,
ninoderkinderen 0:8d87bc453349 1209 pc->rx.inACCM[0], pc->rx.inACCM[1], pc->rx.inACCM[2], pc->rx.inACCM[3]));
ninoderkinderen 0:8d87bc453349 1210 }
ninoderkinderen 0:8d87bc453349 1211
ninoderkinderen 0:8d87bc453349 1212 #if 0
ninoderkinderen 0:8d87bc453349 1213 /*
ninoderkinderen 0:8d87bc453349 1214 * ccp_test - ask kernel whether a given compression method
ninoderkinderen 0:8d87bc453349 1215 * is acceptable for use. Returns 1 if the method and parameters
ninoderkinderen 0:8d87bc453349 1216 * are OK, 0 if the method is known but the parameters are not OK
ninoderkinderen 0:8d87bc453349 1217 * (e.g. code size should be reduced), or -1 if the method is unknown.
ninoderkinderen 0:8d87bc453349 1218 */
ninoderkinderen 0:8d87bc453349 1219 int
ninoderkinderen 0:8d87bc453349 1220 ccp_test( int unit, int opt_len, int for_transmit, u_char *opt_ptr)
ninoderkinderen 0:8d87bc453349 1221 {
ninoderkinderen 0:8d87bc453349 1222 return 0; /* XXX Currently no compression. */
ninoderkinderen 0:8d87bc453349 1223 }
ninoderkinderen 0:8d87bc453349 1224
ninoderkinderen 0:8d87bc453349 1225 /*
ninoderkinderen 0:8d87bc453349 1226 * ccp_flags_set - inform kernel about the current state of CCP.
ninoderkinderen 0:8d87bc453349 1227 */
ninoderkinderen 0:8d87bc453349 1228 void
ninoderkinderen 0:8d87bc453349 1229 ccp_flags_set(int unit, int isopen, int isup)
ninoderkinderen 0:8d87bc453349 1230 {
ninoderkinderen 0:8d87bc453349 1231 /* XXX */
ninoderkinderen 0:8d87bc453349 1232 }
ninoderkinderen 0:8d87bc453349 1233
ninoderkinderen 0:8d87bc453349 1234 /*
ninoderkinderen 0:8d87bc453349 1235 * ccp_fatal_error - returns 1 if decompression was disabled as a
ninoderkinderen 0:8d87bc453349 1236 * result of an error detected after decompression of a packet,
ninoderkinderen 0:8d87bc453349 1237 * 0 otherwise. This is necessary because of patent nonsense.
ninoderkinderen 0:8d87bc453349 1238 */
ninoderkinderen 0:8d87bc453349 1239 int
ninoderkinderen 0:8d87bc453349 1240 ccp_fatal_error(int unit)
ninoderkinderen 0:8d87bc453349 1241 {
ninoderkinderen 0:8d87bc453349 1242 /* XXX */
ninoderkinderen 0:8d87bc453349 1243 return 0;
ninoderkinderen 0:8d87bc453349 1244 }
ninoderkinderen 0:8d87bc453349 1245 #endif
ninoderkinderen 0:8d87bc453349 1246
ninoderkinderen 0:8d87bc453349 1247 /*
ninoderkinderen 0:8d87bc453349 1248 * get_idle_time - return how long the link has been idle.
ninoderkinderen 0:8d87bc453349 1249 */
ninoderkinderen 0:8d87bc453349 1250 int
ninoderkinderen 0:8d87bc453349 1251 get_idle_time(int u, struct ppp_idle *ip)
ninoderkinderen 0:8d87bc453349 1252 {
ninoderkinderen 0:8d87bc453349 1253 /* XXX */
ninoderkinderen 0:8d87bc453349 1254 LWIP_UNUSED_ARG(u);
ninoderkinderen 0:8d87bc453349 1255 LWIP_UNUSED_ARG(ip);
ninoderkinderen 0:8d87bc453349 1256
ninoderkinderen 0:8d87bc453349 1257 return 0;
ninoderkinderen 0:8d87bc453349 1258 }
ninoderkinderen 0:8d87bc453349 1259
ninoderkinderen 0:8d87bc453349 1260
ninoderkinderen 0:8d87bc453349 1261 /*
ninoderkinderen 0:8d87bc453349 1262 * Return user specified netmask, modified by any mask we might determine
ninoderkinderen 0:8d87bc453349 1263 * for address `addr' (in network byte order).
ninoderkinderen 0:8d87bc453349 1264 * Here we scan through the system's list of interfaces, looking for
ninoderkinderen 0:8d87bc453349 1265 * any non-point-to-point interfaces which might appear to be on the same
ninoderkinderen 0:8d87bc453349 1266 * network as `addr'. If we find any, we OR in their netmask to the
ninoderkinderen 0:8d87bc453349 1267 * user-specified netmask.
ninoderkinderen 0:8d87bc453349 1268 */
ninoderkinderen 0:8d87bc453349 1269 u32_t
ninoderkinderen 0:8d87bc453349 1270 GetMask(u32_t addr)
ninoderkinderen 0:8d87bc453349 1271 {
ninoderkinderen 0:8d87bc453349 1272 u32_t mask, nmask;
ninoderkinderen 0:8d87bc453349 1273
ninoderkinderen 0:8d87bc453349 1274 htonl(addr);
ninoderkinderen 0:8d87bc453349 1275 if (IP_CLASSA(addr)) { /* determine network mask for address class */
ninoderkinderen 0:8d87bc453349 1276 nmask = IP_CLASSA_NET;
ninoderkinderen 0:8d87bc453349 1277 } else if (IP_CLASSB(addr)) {
ninoderkinderen 0:8d87bc453349 1278 nmask = IP_CLASSB_NET;
ninoderkinderen 0:8d87bc453349 1279 } else {
ninoderkinderen 0:8d87bc453349 1280 nmask = IP_CLASSC_NET;
ninoderkinderen 0:8d87bc453349 1281 }
ninoderkinderen 0:8d87bc453349 1282
ninoderkinderen 0:8d87bc453349 1283 /* class D nets are disallowed by bad_ip_adrs */
ninoderkinderen 0:8d87bc453349 1284 mask = subnetMask | htonl(nmask);
ninoderkinderen 0:8d87bc453349 1285
ninoderkinderen 0:8d87bc453349 1286 /* XXX
ninoderkinderen 0:8d87bc453349 1287 * Scan through the system's network interfaces.
ninoderkinderen 0:8d87bc453349 1288 * Get each netmask and OR them into our mask.
ninoderkinderen 0:8d87bc453349 1289 */
ninoderkinderen 0:8d87bc453349 1290
ninoderkinderen 0:8d87bc453349 1291 return mask;
ninoderkinderen 0:8d87bc453349 1292 }
ninoderkinderen 0:8d87bc453349 1293
ninoderkinderen 0:8d87bc453349 1294 /*
ninoderkinderen 0:8d87bc453349 1295 * sifvjcomp - config tcp header compression
ninoderkinderen 0:8d87bc453349 1296 */
ninoderkinderen 0:8d87bc453349 1297 int
ninoderkinderen 0:8d87bc453349 1298 sifvjcomp(int pd, int vjcomp, u8_t cidcomp, u8_t maxcid)
ninoderkinderen 0:8d87bc453349 1299 {
ninoderkinderen 0:8d87bc453349 1300 #if PPPOS_SUPPORT && VJ_SUPPORT
ninoderkinderen 0:8d87bc453349 1301 PPPControl *pc = &pppControl[pd];
ninoderkinderen 0:8d87bc453349 1302
ninoderkinderen 0:8d87bc453349 1303 pc->vjEnabled = vjcomp;
ninoderkinderen 0:8d87bc453349 1304 pc->vjComp.compressSlot = cidcomp;
ninoderkinderen 0:8d87bc453349 1305 pc->vjComp.maxSlotIndex = maxcid;
ninoderkinderen 0:8d87bc453349 1306 PPPDEBUG(LOG_INFO, ("sifvjcomp: VJ compress enable=%d slot=%d max slot=%d\n",
ninoderkinderen 0:8d87bc453349 1307 vjcomp, cidcomp, maxcid));
ninoderkinderen 0:8d87bc453349 1308 #else /* PPPOS_SUPPORT && VJ_SUPPORT */
ninoderkinderen 0:8d87bc453349 1309 LWIP_UNUSED_ARG(pd);
ninoderkinderen 0:8d87bc453349 1310 LWIP_UNUSED_ARG(vjcomp);
ninoderkinderen 0:8d87bc453349 1311 LWIP_UNUSED_ARG(cidcomp);
ninoderkinderen 0:8d87bc453349 1312 LWIP_UNUSED_ARG(maxcid);
ninoderkinderen 0:8d87bc453349 1313 #endif /* PPPOS_SUPPORT && VJ_SUPPORT */
ninoderkinderen 0:8d87bc453349 1314
ninoderkinderen 0:8d87bc453349 1315 return 0;
ninoderkinderen 0:8d87bc453349 1316 }
ninoderkinderen 0:8d87bc453349 1317
ninoderkinderen 0:8d87bc453349 1318 /*
ninoderkinderen 0:8d87bc453349 1319 * pppifNetifInit - netif init callback
ninoderkinderen 0:8d87bc453349 1320 */
ninoderkinderen 0:8d87bc453349 1321 static err_t
ninoderkinderen 0:8d87bc453349 1322 pppifNetifInit(struct netif *netif)
ninoderkinderen 0:8d87bc453349 1323 {
ninoderkinderen 0:8d87bc453349 1324 netif->name[0] = 'p';
ninoderkinderen 0:8d87bc453349 1325 netif->name[1] = 'p';
ninoderkinderen 0:8d87bc453349 1326 netif->output = pppifOutput;
ninoderkinderen 0:8d87bc453349 1327 netif->mtu = pppMTU((int)(size_t)netif->state);
ninoderkinderen 0:8d87bc453349 1328 netif->flags = NETIF_FLAG_POINTTOPOINT | NETIF_FLAG_LINK_UP;
ninoderkinderen 0:8d87bc453349 1329 #if LWIP_NETIF_HOSTNAME
ninoderkinderen 0:8d87bc453349 1330 /* @todo: Initialize interface hostname */
ninoderkinderen 0:8d87bc453349 1331 /* netif_set_hostname(netif, "lwip"); */
ninoderkinderen 0:8d87bc453349 1332 #endif /* LWIP_NETIF_HOSTNAME */
ninoderkinderen 0:8d87bc453349 1333 return ERR_OK;
ninoderkinderen 0:8d87bc453349 1334 }
ninoderkinderen 0:8d87bc453349 1335
ninoderkinderen 0:8d87bc453349 1336
ninoderkinderen 0:8d87bc453349 1337 /*
ninoderkinderen 0:8d87bc453349 1338 * sifup - Config the interface up and enable IP packets to pass.
ninoderkinderen 0:8d87bc453349 1339 */
ninoderkinderen 0:8d87bc453349 1340 int
ninoderkinderen 0:8d87bc453349 1341 sifup(int pd)
ninoderkinderen 0:8d87bc453349 1342 {
ninoderkinderen 0:8d87bc453349 1343 PPPControl *pc = &pppControl[pd];
ninoderkinderen 0:8d87bc453349 1344 int st = 1;
ninoderkinderen 0:8d87bc453349 1345
ninoderkinderen 0:8d87bc453349 1346 if (pd < 0 || pd >= NUM_PPP || !pc->openFlag) {
ninoderkinderen 0:8d87bc453349 1347 st = 0;
ninoderkinderen 0:8d87bc453349 1348 PPPDEBUG(LOG_WARNING, ("sifup[%d]: bad parms\n", pd));
ninoderkinderen 0:8d87bc453349 1349 } else {
ninoderkinderen 0:8d87bc453349 1350 netif_remove(&pc->netif);
ninoderkinderen 0:8d87bc453349 1351 if (netif_add(&pc->netif, &pc->addrs.our_ipaddr, &pc->addrs.netmask,
ninoderkinderen 0:8d87bc453349 1352 &pc->addrs.his_ipaddr, (void *)(size_t)pd, pppifNetifInit, ip_input)) {
ninoderkinderen 0:8d87bc453349 1353 netif_set_up(&pc->netif);
ninoderkinderen 0:8d87bc453349 1354 pc->if_up = 1;
ninoderkinderen 0:8d87bc453349 1355 pc->errCode = PPPERR_NONE;
ninoderkinderen 0:8d87bc453349 1356
ninoderkinderen 0:8d87bc453349 1357 PPPDEBUG(LOG_DEBUG, ("sifup: unit %d: linkStatusCB=%p errCode=%d\n", pd, pc->linkStatusCB, pc->errCode));
ninoderkinderen 0:8d87bc453349 1358 if (pc->linkStatusCB) {
ninoderkinderen 0:8d87bc453349 1359 pc->linkStatusCB(pc->linkStatusCtx, pc->errCode, &pc->addrs);
ninoderkinderen 0:8d87bc453349 1360 }
ninoderkinderen 0:8d87bc453349 1361 } else {
ninoderkinderen 0:8d87bc453349 1362 st = 0;
ninoderkinderen 0:8d87bc453349 1363 PPPDEBUG(LOG_ERR, ("sifup[%d]: netif_add failed\n", pd));
ninoderkinderen 0:8d87bc453349 1364 }
ninoderkinderen 0:8d87bc453349 1365 }
ninoderkinderen 0:8d87bc453349 1366
ninoderkinderen 0:8d87bc453349 1367 return st;
ninoderkinderen 0:8d87bc453349 1368 }
ninoderkinderen 0:8d87bc453349 1369
ninoderkinderen 0:8d87bc453349 1370 /*
ninoderkinderen 0:8d87bc453349 1371 * sifnpmode - Set the mode for handling packets for a given NP.
ninoderkinderen 0:8d87bc453349 1372 */
ninoderkinderen 0:8d87bc453349 1373 int
ninoderkinderen 0:8d87bc453349 1374 sifnpmode(int u, int proto, enum NPmode mode)
ninoderkinderen 0:8d87bc453349 1375 {
ninoderkinderen 0:8d87bc453349 1376 LWIP_UNUSED_ARG(u);
ninoderkinderen 0:8d87bc453349 1377 LWIP_UNUSED_ARG(proto);
ninoderkinderen 0:8d87bc453349 1378 LWIP_UNUSED_ARG(mode);
ninoderkinderen 0:8d87bc453349 1379 return 0;
ninoderkinderen 0:8d87bc453349 1380 }
ninoderkinderen 0:8d87bc453349 1381
ninoderkinderen 0:8d87bc453349 1382 /*
ninoderkinderen 0:8d87bc453349 1383 * sifdown - Config the interface down and disable IP.
ninoderkinderen 0:8d87bc453349 1384 */
ninoderkinderen 0:8d87bc453349 1385 int
ninoderkinderen 0:8d87bc453349 1386 sifdown(int pd)
ninoderkinderen 0:8d87bc453349 1387 {
ninoderkinderen 0:8d87bc453349 1388 PPPControl *pc = &pppControl[pd];
ninoderkinderen 0:8d87bc453349 1389 int st = 1;
ninoderkinderen 0:8d87bc453349 1390
ninoderkinderen 0:8d87bc453349 1391 if (pd < 0 || pd >= NUM_PPP || !pc->openFlag) {
ninoderkinderen 0:8d87bc453349 1392 st = 0;
ninoderkinderen 0:8d87bc453349 1393 PPPDEBUG(LOG_WARNING, ("sifdown[%d]: bad parms\n", pd));
ninoderkinderen 0:8d87bc453349 1394 } else {
ninoderkinderen 0:8d87bc453349 1395 pc->if_up = 0;
ninoderkinderen 0:8d87bc453349 1396 /* make sure the netif status callback is called */
ninoderkinderen 0:8d87bc453349 1397 netif_set_down(&pc->netif);
ninoderkinderen 0:8d87bc453349 1398 netif_remove(&pc->netif);
ninoderkinderen 0:8d87bc453349 1399 PPPDEBUG(LOG_DEBUG, ("sifdown: unit %d: linkStatusCB=%p errCode=%d\n", pd, pc->linkStatusCB, pc->errCode));
ninoderkinderen 0:8d87bc453349 1400 if (pc->linkStatusCB) {
ninoderkinderen 0:8d87bc453349 1401 pc->linkStatusCB(pc->linkStatusCtx, PPPERR_CONNECT, NULL);
ninoderkinderen 0:8d87bc453349 1402 }
ninoderkinderen 0:8d87bc453349 1403 }
ninoderkinderen 0:8d87bc453349 1404 return st;
ninoderkinderen 0:8d87bc453349 1405 }
ninoderkinderen 0:8d87bc453349 1406
ninoderkinderen 0:8d87bc453349 1407 /**
ninoderkinderen 0:8d87bc453349 1408 * sifaddr - Config the interface IP addresses and netmask.
ninoderkinderen 0:8d87bc453349 1409 * @param pd Interface unit ???
ninoderkinderen 0:8d87bc453349 1410 * @param o Our IP address ???
ninoderkinderen 0:8d87bc453349 1411 * @param h His IP address ???
ninoderkinderen 0:8d87bc453349 1412 * @param m IP subnet mask ???
ninoderkinderen 0:8d87bc453349 1413 * @param ns1 Primary DNS
ninoderkinderen 0:8d87bc453349 1414 * @param ns2 Secondary DNS
ninoderkinderen 0:8d87bc453349 1415 */
ninoderkinderen 0:8d87bc453349 1416 int
ninoderkinderen 0:8d87bc453349 1417 sifaddr( int pd, u32_t o, u32_t h, u32_t m, u32_t ns1, u32_t ns2)
ninoderkinderen 0:8d87bc453349 1418 {
ninoderkinderen 0:8d87bc453349 1419 PPPControl *pc = &pppControl[pd];
ninoderkinderen 0:8d87bc453349 1420 int st = 1;
ninoderkinderen 0:8d87bc453349 1421
ninoderkinderen 0:8d87bc453349 1422 if (pd < 0 || pd >= NUM_PPP || !pc->openFlag) {
ninoderkinderen 0:8d87bc453349 1423 st = 0;
ninoderkinderen 0:8d87bc453349 1424 PPPDEBUG(LOG_WARNING, ("sifup[%d]: bad parms\n", pd));
ninoderkinderen 0:8d87bc453349 1425 } else {
ninoderkinderen 0:8d87bc453349 1426 SMEMCPY(&pc->addrs.our_ipaddr, &o, sizeof(o));
ninoderkinderen 0:8d87bc453349 1427 SMEMCPY(&pc->addrs.his_ipaddr, &h, sizeof(h));
ninoderkinderen 0:8d87bc453349 1428 SMEMCPY(&pc->addrs.netmask, &m, sizeof(m));
ninoderkinderen 0:8d87bc453349 1429 SMEMCPY(&pc->addrs.dns1, &ns1, sizeof(ns1));
ninoderkinderen 0:8d87bc453349 1430 SMEMCPY(&pc->addrs.dns2, &ns2, sizeof(ns2));
ninoderkinderen 0:8d87bc453349 1431 }
ninoderkinderen 0:8d87bc453349 1432 return st;
ninoderkinderen 0:8d87bc453349 1433 }
ninoderkinderen 0:8d87bc453349 1434
ninoderkinderen 0:8d87bc453349 1435 /**
ninoderkinderen 0:8d87bc453349 1436 * cifaddr - Clear the interface IP addresses, and delete routes
ninoderkinderen 0:8d87bc453349 1437 * through the interface if possible.
ninoderkinderen 0:8d87bc453349 1438 * @param pd Interface unit ???
ninoderkinderen 0:8d87bc453349 1439 * @param o Our IP address ???
ninoderkinderen 0:8d87bc453349 1440 * @param h IP broadcast address ???
ninoderkinderen 0:8d87bc453349 1441 */
ninoderkinderen 0:8d87bc453349 1442 int
ninoderkinderen 0:8d87bc453349 1443 cifaddr( int pd, u32_t o, u32_t h)
ninoderkinderen 0:8d87bc453349 1444 {
ninoderkinderen 0:8d87bc453349 1445 PPPControl *pc = &pppControl[pd];
ninoderkinderen 0:8d87bc453349 1446 int st = 1;
ninoderkinderen 0:8d87bc453349 1447
ninoderkinderen 0:8d87bc453349 1448 LWIP_UNUSED_ARG(o);
ninoderkinderen 0:8d87bc453349 1449 LWIP_UNUSED_ARG(h);
ninoderkinderen 0:8d87bc453349 1450 if (pd < 0 || pd >= NUM_PPP || !pc->openFlag) {
ninoderkinderen 0:8d87bc453349 1451 st = 0;
ninoderkinderen 0:8d87bc453349 1452 PPPDEBUG(LOG_WARNING, ("sifup[%d]: bad parms\n", pd));
ninoderkinderen 0:8d87bc453349 1453 } else {
ninoderkinderen 0:8d87bc453349 1454 IP4_ADDR(&pc->addrs.our_ipaddr, 0,0,0,0);
ninoderkinderen 0:8d87bc453349 1455 IP4_ADDR(&pc->addrs.his_ipaddr, 0,0,0,0);
ninoderkinderen 0:8d87bc453349 1456 IP4_ADDR(&pc->addrs.netmask, 255,255,255,0);
ninoderkinderen 0:8d87bc453349 1457 IP4_ADDR(&pc->addrs.dns1, 0,0,0,0);
ninoderkinderen 0:8d87bc453349 1458 IP4_ADDR(&pc->addrs.dns2, 0,0,0,0);
ninoderkinderen 0:8d87bc453349 1459 }
ninoderkinderen 0:8d87bc453349 1460 return st;
ninoderkinderen 0:8d87bc453349 1461 }
ninoderkinderen 0:8d87bc453349 1462
ninoderkinderen 0:8d87bc453349 1463 /*
ninoderkinderen 0:8d87bc453349 1464 * sifdefaultroute - assign a default route through the address given.
ninoderkinderen 0:8d87bc453349 1465 */
ninoderkinderen 0:8d87bc453349 1466 int
ninoderkinderen 0:8d87bc453349 1467 sifdefaultroute(int pd, u32_t l, u32_t g)
ninoderkinderen 0:8d87bc453349 1468 {
ninoderkinderen 0:8d87bc453349 1469 PPPControl *pc = &pppControl[pd];
ninoderkinderen 0:8d87bc453349 1470 int st = 1;
ninoderkinderen 0:8d87bc453349 1471
ninoderkinderen 0:8d87bc453349 1472 LWIP_UNUSED_ARG(l);
ninoderkinderen 0:8d87bc453349 1473 LWIP_UNUSED_ARG(g);
ninoderkinderen 0:8d87bc453349 1474
ninoderkinderen 0:8d87bc453349 1475 if (pd < 0 || pd >= NUM_PPP || !pc->openFlag) {
ninoderkinderen 0:8d87bc453349 1476 st = 0;
ninoderkinderen 0:8d87bc453349 1477 PPPDEBUG(LOG_WARNING, ("sifup[%d]: bad parms\n", pd));
ninoderkinderen 0:8d87bc453349 1478 } else {
ninoderkinderen 0:8d87bc453349 1479 netif_set_default(&pc->netif);
ninoderkinderen 0:8d87bc453349 1480 }
ninoderkinderen 0:8d87bc453349 1481
ninoderkinderen 0:8d87bc453349 1482 /* TODO: check how PPP handled the netMask, previously not set by ipSetDefault */
ninoderkinderen 0:8d87bc453349 1483
ninoderkinderen 0:8d87bc453349 1484 return st;
ninoderkinderen 0:8d87bc453349 1485 }
ninoderkinderen 0:8d87bc453349 1486
ninoderkinderen 0:8d87bc453349 1487 /*
ninoderkinderen 0:8d87bc453349 1488 * cifdefaultroute - delete a default route through the address given.
ninoderkinderen 0:8d87bc453349 1489 */
ninoderkinderen 0:8d87bc453349 1490 int
ninoderkinderen 0:8d87bc453349 1491 cifdefaultroute(int pd, u32_t l, u32_t g)
ninoderkinderen 0:8d87bc453349 1492 {
ninoderkinderen 0:8d87bc453349 1493 PPPControl *pc = &pppControl[pd];
ninoderkinderen 0:8d87bc453349 1494 int st = 1;
ninoderkinderen 0:8d87bc453349 1495
ninoderkinderen 0:8d87bc453349 1496 LWIP_UNUSED_ARG(l);
ninoderkinderen 0:8d87bc453349 1497 LWIP_UNUSED_ARG(g);
ninoderkinderen 0:8d87bc453349 1498
ninoderkinderen 0:8d87bc453349 1499 if (pd < 0 || pd >= NUM_PPP || !pc->openFlag) {
ninoderkinderen 0:8d87bc453349 1500 st = 0;
ninoderkinderen 0:8d87bc453349 1501 PPPDEBUG(LOG_WARNING, ("sifup[%d]: bad parms\n", pd));
ninoderkinderen 0:8d87bc453349 1502 } else {
ninoderkinderen 0:8d87bc453349 1503 netif_set_default(NULL);
ninoderkinderen 0:8d87bc453349 1504 }
ninoderkinderen 0:8d87bc453349 1505
ninoderkinderen 0:8d87bc453349 1506 return st;
ninoderkinderen 0:8d87bc453349 1507 }
ninoderkinderen 0:8d87bc453349 1508
ninoderkinderen 0:8d87bc453349 1509 /**********************************/
ninoderkinderen 0:8d87bc453349 1510 /*** LOCAL FUNCTION DEFINITIONS ***/
ninoderkinderen 0:8d87bc453349 1511 /**********************************/
ninoderkinderen 0:8d87bc453349 1512
ninoderkinderen 0:8d87bc453349 1513 #if PPPOS_SUPPORT && PPP_INPROC_OWNTHREAD
ninoderkinderen 0:8d87bc453349 1514 /* The main PPP process function. This implements the state machine according
ninoderkinderen 0:8d87bc453349 1515 * to section 4 of RFC 1661: The Point-To-Point Protocol. */
ninoderkinderen 0:8d87bc453349 1516 static void
ninoderkinderen 0:8d87bc453349 1517 pppInputThread(void *arg)
ninoderkinderen 0:8d87bc453349 1518 {
ninoderkinderen 0:8d87bc453349 1519 int count;
ninoderkinderen 0:8d87bc453349 1520 PPPControlRx *pcrx = arg;
ninoderkinderen 0:8d87bc453349 1521
ninoderkinderen 0:8d87bc453349 1522 while (lcp_phase[pcrx->pd] != PHASE_DEAD) {
ninoderkinderen 0:8d87bc453349 1523 count = sio_read(pcrx->fd, pcrx->rxbuf, PPPOS_RX_BUFSIZE);
ninoderkinderen 0:8d87bc453349 1524 if(count > 0) {
ninoderkinderen 0:8d87bc453349 1525 pppInProc(pcrx, pcrx->rxbuf, count);
ninoderkinderen 0:8d87bc453349 1526 } else {
ninoderkinderen 0:8d87bc453349 1527 /* nothing received, give other tasks a chance to run */
ninoderkinderen 0:8d87bc453349 1528 sys_msleep(1);
ninoderkinderen 0:8d87bc453349 1529 }
ninoderkinderen 0:8d87bc453349 1530 }
ninoderkinderen 0:8d87bc453349 1531 }
ninoderkinderen 0:8d87bc453349 1532 #endif /* PPPOS_SUPPORT && PPP_INPROC_OWNTHREAD */
ninoderkinderen 0:8d87bc453349 1533
ninoderkinderen 0:8d87bc453349 1534 #if PPPOE_SUPPORT
ninoderkinderen 0:8d87bc453349 1535
ninoderkinderen 0:8d87bc453349 1536 void
ninoderkinderen 0:8d87bc453349 1537 pppOverEthernetInitFailed(int pd)
ninoderkinderen 0:8d87bc453349 1538 {
ninoderkinderen 0:8d87bc453349 1539 PPPControl* pc;
ninoderkinderen 0:8d87bc453349 1540
ninoderkinderen 0:8d87bc453349 1541 pppHup(pd);
ninoderkinderen 0:8d87bc453349 1542 pppStop(pd);
ninoderkinderen 0:8d87bc453349 1543
ninoderkinderen 0:8d87bc453349 1544 pc = &pppControl[pd];
ninoderkinderen 0:8d87bc453349 1545 pppoe_destroy(&pc->netif);
ninoderkinderen 0:8d87bc453349 1546 pc->openFlag = 0;
ninoderkinderen 0:8d87bc453349 1547
ninoderkinderen 0:8d87bc453349 1548 if(pc->linkStatusCB) {
ninoderkinderen 0:8d87bc453349 1549 pc->linkStatusCB(pc->linkStatusCtx, pc->errCode ? pc->errCode : PPPERR_PROTOCOL, NULL);
ninoderkinderen 0:8d87bc453349 1550 }
ninoderkinderen 0:8d87bc453349 1551 }
ninoderkinderen 0:8d87bc453349 1552
ninoderkinderen 0:8d87bc453349 1553 static void
ninoderkinderen 0:8d87bc453349 1554 pppOverEthernetLinkStatusCB(int pd, int up)
ninoderkinderen 0:8d87bc453349 1555 {
ninoderkinderen 0:8d87bc453349 1556 if(up) {
ninoderkinderen 0:8d87bc453349 1557 PPPDEBUG(LOG_INFO, ("pppOverEthernetLinkStatusCB: unit %d: Connecting\n", pd));
ninoderkinderen 0:8d87bc453349 1558 pppStart(pd);
ninoderkinderen 0:8d87bc453349 1559 } else {
ninoderkinderen 0:8d87bc453349 1560 pppOverEthernetInitFailed(pd);
ninoderkinderen 0:8d87bc453349 1561 }
ninoderkinderen 0:8d87bc453349 1562 }
ninoderkinderen 0:8d87bc453349 1563 #endif /* PPPOE_SUPPORT */
ninoderkinderen 0:8d87bc453349 1564
ninoderkinderen 0:8d87bc453349 1565 struct pbuf *
ninoderkinderen 0:8d87bc453349 1566 pppSingleBuf(struct pbuf *p)
ninoderkinderen 0:8d87bc453349 1567 {
ninoderkinderen 0:8d87bc453349 1568 struct pbuf *q, *b;
ninoderkinderen 0:8d87bc453349 1569 u_char *pl;
ninoderkinderen 0:8d87bc453349 1570
ninoderkinderen 0:8d87bc453349 1571 if(p->tot_len == p->len) {
ninoderkinderen 0:8d87bc453349 1572 return p;
ninoderkinderen 0:8d87bc453349 1573 }
ninoderkinderen 0:8d87bc453349 1574
ninoderkinderen 0:8d87bc453349 1575 q = pbuf_alloc(PBUF_RAW, p->tot_len, PBUF_RAM);
ninoderkinderen 0:8d87bc453349 1576 if(!q) {
ninoderkinderen 0:8d87bc453349 1577 PPPDEBUG(LOG_ERR,
ninoderkinderen 0:8d87bc453349 1578 ("pppSingleBuf: unable to alloc new buf (%d)\n", p->tot_len));
ninoderkinderen 0:8d87bc453349 1579 return p; /* live dangerously */
ninoderkinderen 0:8d87bc453349 1580 }
ninoderkinderen 0:8d87bc453349 1581
ninoderkinderen 0:8d87bc453349 1582 for(b = p, pl = (u_char *) q->payload; b != NULL; b = b->next) {
ninoderkinderen 0:8d87bc453349 1583 MEMCPY(pl, b->payload, b->len);
ninoderkinderen 0:8d87bc453349 1584 pl += b->len;
ninoderkinderen 0:8d87bc453349 1585 }
ninoderkinderen 0:8d87bc453349 1586
ninoderkinderen 0:8d87bc453349 1587 pbuf_free(p);
ninoderkinderen 0:8d87bc453349 1588
ninoderkinderen 0:8d87bc453349 1589 return q;
ninoderkinderen 0:8d87bc453349 1590 }
ninoderkinderen 0:8d87bc453349 1591
ninoderkinderen 0:8d87bc453349 1592 struct pppInputHeader {
ninoderkinderen 0:8d87bc453349 1593 int unit;
ninoderkinderen 0:8d87bc453349 1594 u16_t proto;
ninoderkinderen 0:8d87bc453349 1595 };
ninoderkinderen 0:8d87bc453349 1596
ninoderkinderen 0:8d87bc453349 1597 /*
ninoderkinderen 0:8d87bc453349 1598 * Pass the processed input packet to the appropriate handler.
ninoderkinderen 0:8d87bc453349 1599 * This function and all handlers run in the context of the tcpip_thread
ninoderkinderen 0:8d87bc453349 1600 */
ninoderkinderen 0:8d87bc453349 1601 static void
ninoderkinderen 0:8d87bc453349 1602 pppInput(void *arg)
ninoderkinderen 0:8d87bc453349 1603 {
ninoderkinderen 0:8d87bc453349 1604 struct pbuf *nb = (struct pbuf *)arg;
ninoderkinderen 0:8d87bc453349 1605 u16_t protocol;
ninoderkinderen 0:8d87bc453349 1606 int pd;
ninoderkinderen 0:8d87bc453349 1607
ninoderkinderen 0:8d87bc453349 1608 pd = ((struct pppInputHeader *)nb->payload)->unit;
ninoderkinderen 0:8d87bc453349 1609 protocol = ((struct pppInputHeader *)nb->payload)->proto;
ninoderkinderen 0:8d87bc453349 1610
ninoderkinderen 0:8d87bc453349 1611 if(pbuf_header(nb, -(int)sizeof(struct pppInputHeader))) {
ninoderkinderen 0:8d87bc453349 1612 LWIP_ASSERT("pbuf_header failed\n", 0);
ninoderkinderen 0:8d87bc453349 1613 goto drop;
ninoderkinderen 0:8d87bc453349 1614 }
ninoderkinderen 0:8d87bc453349 1615
ninoderkinderen 0:8d87bc453349 1616 LINK_STATS_INC(link.recv);
ninoderkinderen 0:8d87bc453349 1617 snmp_inc_ifinucastpkts(&pppControl[pd].netif);
ninoderkinderen 0:8d87bc453349 1618 snmp_add_ifinoctets(&pppControl[pd].netif, nb->tot_len);
ninoderkinderen 0:8d87bc453349 1619
ninoderkinderen 0:8d87bc453349 1620 /*
ninoderkinderen 0:8d87bc453349 1621 * Toss all non-LCP packets unless LCP is OPEN.
ninoderkinderen 0:8d87bc453349 1622 * Until we get past the authentication phase, toss all packets
ninoderkinderen 0:8d87bc453349 1623 * except LCP, LQR and authentication packets.
ninoderkinderen 0:8d87bc453349 1624 */
ninoderkinderen 0:8d87bc453349 1625 if((lcp_phase[pd] <= PHASE_AUTHENTICATE) && (protocol != PPP_LCP)) {
ninoderkinderen 0:8d87bc453349 1626 if(!((protocol == PPP_LQR) || (protocol == PPP_PAP) || (protocol == PPP_CHAP)) ||
ninoderkinderen 0:8d87bc453349 1627 (lcp_phase[pd] != PHASE_AUTHENTICATE)) {
ninoderkinderen 0:8d87bc453349 1628 PPPDEBUG(LOG_INFO, ("pppInput: discarding proto 0x%"X16_F" in phase %d\n", protocol, lcp_phase[pd]));
ninoderkinderen 0:8d87bc453349 1629 goto drop;
ninoderkinderen 0:8d87bc453349 1630 }
ninoderkinderen 0:8d87bc453349 1631 }
ninoderkinderen 0:8d87bc453349 1632
ninoderkinderen 0:8d87bc453349 1633 switch(protocol) {
ninoderkinderen 0:8d87bc453349 1634 case PPP_VJC_COMP: /* VJ compressed TCP */
ninoderkinderen 0:8d87bc453349 1635 #if PPPOS_SUPPORT && VJ_SUPPORT
ninoderkinderen 0:8d87bc453349 1636 PPPDEBUG(LOG_INFO, ("pppInput[%d]: vj_comp in pbuf len=%d\n", pd, nb->len));
ninoderkinderen 0:8d87bc453349 1637 /*
ninoderkinderen 0:8d87bc453349 1638 * Clip off the VJ header and prepend the rebuilt TCP/IP header and
ninoderkinderen 0:8d87bc453349 1639 * pass the result to IP.
ninoderkinderen 0:8d87bc453349 1640 */
ninoderkinderen 0:8d87bc453349 1641 if ((vj_uncompress_tcp(&nb, &pppControl[pd].vjComp) >= 0) && (pppControl[pd].netif.input)) {
ninoderkinderen 0:8d87bc453349 1642 pppControl[pd].netif.input(nb, &pppControl[pd].netif);
ninoderkinderen 0:8d87bc453349 1643 return;
ninoderkinderen 0:8d87bc453349 1644 }
ninoderkinderen 0:8d87bc453349 1645 /* Something's wrong so drop it. */
ninoderkinderen 0:8d87bc453349 1646 PPPDEBUG(LOG_WARNING, ("pppInput[%d]: Dropping VJ compressed\n", pd));
ninoderkinderen 0:8d87bc453349 1647 #else /* PPPOS_SUPPORT && VJ_SUPPORT */
ninoderkinderen 0:8d87bc453349 1648 /* No handler for this protocol so drop the packet. */
ninoderkinderen 0:8d87bc453349 1649 PPPDEBUG(LOG_INFO, ("pppInput[%d]: drop VJ Comp in %d:%s\n", pd, nb->len, nb->payload));
ninoderkinderen 0:8d87bc453349 1650 #endif /* PPPOS_SUPPORT && VJ_SUPPORT */
ninoderkinderen 0:8d87bc453349 1651 break;
ninoderkinderen 0:8d87bc453349 1652
ninoderkinderen 0:8d87bc453349 1653 case PPP_VJC_UNCOMP: /* VJ uncompressed TCP */
ninoderkinderen 0:8d87bc453349 1654 #if PPPOS_SUPPORT && VJ_SUPPORT
ninoderkinderen 0:8d87bc453349 1655 PPPDEBUG(LOG_INFO, ("pppInput[%d]: vj_un in pbuf len=%d\n", pd, nb->len));
ninoderkinderen 0:8d87bc453349 1656 /*
ninoderkinderen 0:8d87bc453349 1657 * Process the TCP/IP header for VJ header compression and then pass
ninoderkinderen 0:8d87bc453349 1658 * the packet to IP.
ninoderkinderen 0:8d87bc453349 1659 */
ninoderkinderen 0:8d87bc453349 1660 if ((vj_uncompress_uncomp(nb, &pppControl[pd].vjComp) >= 0) && pppControl[pd].netif.input) {
ninoderkinderen 0:8d87bc453349 1661 pppControl[pd].netif.input(nb, &pppControl[pd].netif);
ninoderkinderen 0:8d87bc453349 1662 return;
ninoderkinderen 0:8d87bc453349 1663 }
ninoderkinderen 0:8d87bc453349 1664 /* Something's wrong so drop it. */
ninoderkinderen 0:8d87bc453349 1665 PPPDEBUG(LOG_WARNING, ("pppInput[%d]: Dropping VJ uncompressed\n", pd));
ninoderkinderen 0:8d87bc453349 1666 #else /* PPPOS_SUPPORT && VJ_SUPPORT */
ninoderkinderen 0:8d87bc453349 1667 /* No handler for this protocol so drop the packet. */
ninoderkinderen 0:8d87bc453349 1668 PPPDEBUG(LOG_INFO,
ninoderkinderen 0:8d87bc453349 1669 ("pppInput[%d]: drop VJ UnComp in %d:.*H\n",
ninoderkinderen 0:8d87bc453349 1670 pd, nb->len, LWIP_MIN(nb->len * 2, 40), nb->payload));
ninoderkinderen 0:8d87bc453349 1671 #endif /* PPPOS_SUPPORT && VJ_SUPPORT */
ninoderkinderen 0:8d87bc453349 1672 break;
ninoderkinderen 0:8d87bc453349 1673
ninoderkinderen 0:8d87bc453349 1674 case PPP_IP: /* Internet Protocol */
ninoderkinderen 0:8d87bc453349 1675 PPPDEBUG(LOG_INFO, ("pppInput[%d]: ip in pbuf len=%d\n", pd, nb->len));
ninoderkinderen 0:8d87bc453349 1676 if (pppControl[pd].netif.input) {
ninoderkinderen 0:8d87bc453349 1677 pppControl[pd].netif.input(nb, &pppControl[pd].netif);
ninoderkinderen 0:8d87bc453349 1678 return;
ninoderkinderen 0:8d87bc453349 1679 }
ninoderkinderen 0:8d87bc453349 1680 break;
ninoderkinderen 0:8d87bc453349 1681
ninoderkinderen 0:8d87bc453349 1682 default: {
ninoderkinderen 0:8d87bc453349 1683 struct protent *protp;
ninoderkinderen 0:8d87bc453349 1684 int i;
ninoderkinderen 0:8d87bc453349 1685
ninoderkinderen 0:8d87bc453349 1686 /*
ninoderkinderen 0:8d87bc453349 1687 * Upcall the proper protocol input routine.
ninoderkinderen 0:8d87bc453349 1688 */
ninoderkinderen 0:8d87bc453349 1689 for (i = 0; (protp = ppp_protocols[i]) != NULL; ++i) {
ninoderkinderen 0:8d87bc453349 1690 if (protp->protocol == protocol && protp->enabled_flag) {
ninoderkinderen 0:8d87bc453349 1691 PPPDEBUG(LOG_INFO, ("pppInput[%d]: %s len=%d\n", pd, protp->name, nb->len));
ninoderkinderen 0:8d87bc453349 1692 nb = pppSingleBuf(nb);
ninoderkinderen 0:8d87bc453349 1693 (*protp->input)(pd, (u_char *)nb->payload, nb->len);
ninoderkinderen 0:8d87bc453349 1694 PPPDEBUG(LOG_DETAIL, ("pppInput[%d]: packet processed\n", pd));
ninoderkinderen 0:8d87bc453349 1695 goto out;
ninoderkinderen 0:8d87bc453349 1696 }
ninoderkinderen 0:8d87bc453349 1697 }
ninoderkinderen 0:8d87bc453349 1698
ninoderkinderen 0:8d87bc453349 1699 /* No handler for this protocol so reject the packet. */
ninoderkinderen 0:8d87bc453349 1700 PPPDEBUG(LOG_INFO, ("pppInput[%d]: rejecting unsupported proto 0x%"X16_F" len=%d\n", pd, protocol, nb->len));
ninoderkinderen 0:8d87bc453349 1701 if (pbuf_header(nb, sizeof(protocol))) {
ninoderkinderen 0:8d87bc453349 1702 LWIP_ASSERT("pbuf_header failed\n", 0);
ninoderkinderen 0:8d87bc453349 1703 goto drop;
ninoderkinderen 0:8d87bc453349 1704 }
ninoderkinderen 0:8d87bc453349 1705 #if BYTE_ORDER == LITTLE_ENDIAN
ninoderkinderen 0:8d87bc453349 1706 protocol = htons(protocol);
ninoderkinderen 0:8d87bc453349 1707 SMEMCPY(nb->payload, &protocol, sizeof(protocol));
ninoderkinderen 0:8d87bc453349 1708 #endif /* BYTE_ORDER == LITTLE_ENDIAN */
ninoderkinderen 0:8d87bc453349 1709 lcp_sprotrej(pd, (u_char *)nb->payload, nb->len);
ninoderkinderen 0:8d87bc453349 1710 }
ninoderkinderen 0:8d87bc453349 1711 break;
ninoderkinderen 0:8d87bc453349 1712 }
ninoderkinderen 0:8d87bc453349 1713
ninoderkinderen 0:8d87bc453349 1714 drop:
ninoderkinderen 0:8d87bc453349 1715 LINK_STATS_INC(link.drop);
ninoderkinderen 0:8d87bc453349 1716 snmp_inc_ifindiscards(&pppControl[pd].netif);
ninoderkinderen 0:8d87bc453349 1717
ninoderkinderen 0:8d87bc453349 1718 out:
ninoderkinderen 0:8d87bc453349 1719 pbuf_free(nb);
ninoderkinderen 0:8d87bc453349 1720 return;
ninoderkinderen 0:8d87bc453349 1721 }
ninoderkinderen 0:8d87bc453349 1722
ninoderkinderen 0:8d87bc453349 1723 #if PPPOS_SUPPORT
ninoderkinderen 0:8d87bc453349 1724 /*
ninoderkinderen 0:8d87bc453349 1725 * Drop the input packet.
ninoderkinderen 0:8d87bc453349 1726 */
ninoderkinderen 0:8d87bc453349 1727 static void
ninoderkinderen 0:8d87bc453349 1728 pppDrop(PPPControlRx *pcrx)
ninoderkinderen 0:8d87bc453349 1729 {
ninoderkinderen 0:8d87bc453349 1730 if (pcrx->inHead != NULL) {
ninoderkinderen 0:8d87bc453349 1731 #if 0
ninoderkinderen 0:8d87bc453349 1732 PPPDEBUG(LOG_INFO, ("pppDrop: %d:%.*H\n", pcrx->inHead->len, min(60, pcrx->inHead->len * 2), pcrx->inHead->payload));
ninoderkinderen 0:8d87bc453349 1733 #endif
ninoderkinderen 0:8d87bc453349 1734 PPPDEBUG(LOG_INFO, ("pppDrop: pbuf len=%d, addr %p\n", pcrx->inHead->len, (void*)pcrx->inHead));
ninoderkinderen 0:8d87bc453349 1735 if (pcrx->inTail && (pcrx->inTail != pcrx->inHead)) {
ninoderkinderen 0:8d87bc453349 1736 pbuf_free(pcrx->inTail);
ninoderkinderen 0:8d87bc453349 1737 }
ninoderkinderen 0:8d87bc453349 1738 pbuf_free(pcrx->inHead);
ninoderkinderen 0:8d87bc453349 1739 pcrx->inHead = NULL;
ninoderkinderen 0:8d87bc453349 1740 pcrx->inTail = NULL;
ninoderkinderen 0:8d87bc453349 1741 }
ninoderkinderen 0:8d87bc453349 1742 #if VJ_SUPPORT
ninoderkinderen 0:8d87bc453349 1743 vj_uncompress_err(&pppControl[pcrx->pd].vjComp);
ninoderkinderen 0:8d87bc453349 1744 #endif /* VJ_SUPPORT */
ninoderkinderen 0:8d87bc453349 1745
ninoderkinderen 0:8d87bc453349 1746 LINK_STATS_INC(link.drop);
ninoderkinderen 0:8d87bc453349 1747 snmp_inc_ifindiscards(&pppControl[pcrx->pd].netif);
ninoderkinderen 0:8d87bc453349 1748 }
ninoderkinderen 0:8d87bc453349 1749
ninoderkinderen 0:8d87bc453349 1750 /** Pass received raw characters to PPPoS to be decoded. This function is
ninoderkinderen 0:8d87bc453349 1751 * thread-safe and can be called from a dedicated RX-thread or from a main-loop.
ninoderkinderen 0:8d87bc453349 1752 *
ninoderkinderen 0:8d87bc453349 1753 * @param pd PPP descriptor index, returned by pppOpen()
ninoderkinderen 0:8d87bc453349 1754 * @param data received data
ninoderkinderen 0:8d87bc453349 1755 * @param len length of received data
ninoderkinderen 0:8d87bc453349 1756 */
ninoderkinderen 0:8d87bc453349 1757 void
ninoderkinderen 0:8d87bc453349 1758 pppos_input(int pd, u_char* data, int len)
ninoderkinderen 0:8d87bc453349 1759 {
ninoderkinderen 0:8d87bc453349 1760 pppInProc(&pppControl[pd].rx, data, len);
ninoderkinderen 0:8d87bc453349 1761 }
ninoderkinderen 0:8d87bc453349 1762
ninoderkinderen 0:8d87bc453349 1763 /**
ninoderkinderen 0:8d87bc453349 1764 * Process a received octet string.
ninoderkinderen 0:8d87bc453349 1765 */
ninoderkinderen 0:8d87bc453349 1766 static void
ninoderkinderen 0:8d87bc453349 1767 pppInProc(PPPControlRx *pcrx, u_char *s, int l)
ninoderkinderen 0:8d87bc453349 1768 {
ninoderkinderen 0:8d87bc453349 1769 struct pbuf *nextNBuf;
ninoderkinderen 0:8d87bc453349 1770 u_char curChar;
ninoderkinderen 0:8d87bc453349 1771 u_char escaped;
ninoderkinderen 0:8d87bc453349 1772 SYS_ARCH_DECL_PROTECT(lev);
ninoderkinderen 0:8d87bc453349 1773
ninoderkinderen 0:8d87bc453349 1774 PPPDEBUG(LOG_DEBUG, ("pppInProc[%d]: got %d bytes\n", pcrx->pd, l));
ninoderkinderen 0:8d87bc453349 1775 while (l-- > 0) {
ninoderkinderen 0:8d87bc453349 1776 curChar = *s++;
ninoderkinderen 0:8d87bc453349 1777
ninoderkinderen 0:8d87bc453349 1778 SYS_ARCH_PROTECT(lev);
ninoderkinderen 0:8d87bc453349 1779 escaped = ESCAPE_P(pcrx->inACCM, curChar);
ninoderkinderen 0:8d87bc453349 1780 SYS_ARCH_UNPROTECT(lev);
ninoderkinderen 0:8d87bc453349 1781 /* Handle special characters. */
ninoderkinderen 0:8d87bc453349 1782 if (escaped) {
ninoderkinderen 0:8d87bc453349 1783 /* Check for escape sequences. */
ninoderkinderen 0:8d87bc453349 1784 /* XXX Note that this does not handle an escaped 0x5d character which
ninoderkinderen 0:8d87bc453349 1785 * would appear as an escape character. Since this is an ASCII ']'
ninoderkinderen 0:8d87bc453349 1786 * and there is no reason that I know of to escape it, I won't complicate
ninoderkinderen 0:8d87bc453349 1787 * the code to handle this case. GLL */
ninoderkinderen 0:8d87bc453349 1788 if (curChar == PPP_ESCAPE) {
ninoderkinderen 0:8d87bc453349 1789 pcrx->inEscaped = 1;
ninoderkinderen 0:8d87bc453349 1790 /* Check for the flag character. */
ninoderkinderen 0:8d87bc453349 1791 } else if (curChar == PPP_FLAG) {
ninoderkinderen 0:8d87bc453349 1792 /* If this is just an extra flag character, ignore it. */
ninoderkinderen 0:8d87bc453349 1793 if (pcrx->inState <= PDADDRESS) {
ninoderkinderen 0:8d87bc453349 1794 /* ignore it */;
ninoderkinderen 0:8d87bc453349 1795 /* If we haven't received the packet header, drop what has come in. */
ninoderkinderen 0:8d87bc453349 1796 } else if (pcrx->inState < PDDATA) {
ninoderkinderen 0:8d87bc453349 1797 PPPDEBUG(LOG_WARNING,
ninoderkinderen 0:8d87bc453349 1798 ("pppInProc[%d]: Dropping incomplete packet %d\n",
ninoderkinderen 0:8d87bc453349 1799 pcrx->pd, pcrx->inState));
ninoderkinderen 0:8d87bc453349 1800 LINK_STATS_INC(link.lenerr);
ninoderkinderen 0:8d87bc453349 1801 pppDrop(pcrx);
ninoderkinderen 0:8d87bc453349 1802 /* If the fcs is invalid, drop the packet. */
ninoderkinderen 0:8d87bc453349 1803 } else if (pcrx->inFCS != PPP_GOODFCS) {
ninoderkinderen 0:8d87bc453349 1804 PPPDEBUG(LOG_INFO,
ninoderkinderen 0:8d87bc453349 1805 ("pppInProc[%d]: Dropping bad fcs 0x%"X16_F" proto=0x%"X16_F"\n",
ninoderkinderen 0:8d87bc453349 1806 pcrx->pd, pcrx->inFCS, pcrx->inProtocol));
ninoderkinderen 0:8d87bc453349 1807 /* Note: If you get lots of these, check for UART frame errors or try different baud rate */
ninoderkinderen 0:8d87bc453349 1808 LINK_STATS_INC(link.chkerr);
ninoderkinderen 0:8d87bc453349 1809 pppDrop(pcrx);
ninoderkinderen 0:8d87bc453349 1810 /* Otherwise it's a good packet so pass it on. */
ninoderkinderen 0:8d87bc453349 1811 } else {
ninoderkinderen 0:8d87bc453349 1812 /* Trim off the checksum. */
ninoderkinderen 0:8d87bc453349 1813 if(pcrx->inTail->len >= 2) {
ninoderkinderen 0:8d87bc453349 1814 pcrx->inTail->len -= 2;
ninoderkinderen 0:8d87bc453349 1815
ninoderkinderen 0:8d87bc453349 1816 pcrx->inTail->tot_len = pcrx->inTail->len;
ninoderkinderen 0:8d87bc453349 1817 if (pcrx->inTail != pcrx->inHead) {
ninoderkinderen 0:8d87bc453349 1818 pbuf_cat(pcrx->inHead, pcrx->inTail);
ninoderkinderen 0:8d87bc453349 1819 }
ninoderkinderen 0:8d87bc453349 1820 } else {
ninoderkinderen 0:8d87bc453349 1821 pcrx->inTail->tot_len = pcrx->inTail->len;
ninoderkinderen 0:8d87bc453349 1822 if (pcrx->inTail != pcrx->inHead) {
ninoderkinderen 0:8d87bc453349 1823 pbuf_cat(pcrx->inHead, pcrx->inTail);
ninoderkinderen 0:8d87bc453349 1824 }
ninoderkinderen 0:8d87bc453349 1825
ninoderkinderen 0:8d87bc453349 1826 pbuf_realloc(pcrx->inHead, pcrx->inHead->tot_len - 2);
ninoderkinderen 0:8d87bc453349 1827 }
ninoderkinderen 0:8d87bc453349 1828
ninoderkinderen 0:8d87bc453349 1829 /* Dispatch the packet thereby consuming it. */
ninoderkinderen 0:8d87bc453349 1830 #if PPP_INPROC_MULTITHREADED
ninoderkinderen 0:8d87bc453349 1831 if(tcpip_callback_with_block(pppInput, pcrx->inHead, 0) != ERR_OK) {
ninoderkinderen 0:8d87bc453349 1832 PPPDEBUG(LOG_ERR, ("pppInProc[%d]: tcpip_callback() failed, dropping packet\n", pcrx->pd));
ninoderkinderen 0:8d87bc453349 1833 pbuf_free(pcrx->inHead);
ninoderkinderen 0:8d87bc453349 1834 LINK_STATS_INC(link.drop);
ninoderkinderen 0:8d87bc453349 1835 snmp_inc_ifindiscards(&pppControl[pcrx->pd].netif);
ninoderkinderen 0:8d87bc453349 1836 }
ninoderkinderen 0:8d87bc453349 1837 #else /* PPP_INPROC_MULTITHREADED */
ninoderkinderen 0:8d87bc453349 1838 pppInput(pcrx->inHead);
ninoderkinderen 0:8d87bc453349 1839 #endif /* PPP_INPROC_MULTITHREADED */
ninoderkinderen 0:8d87bc453349 1840 pcrx->inHead = NULL;
ninoderkinderen 0:8d87bc453349 1841 pcrx->inTail = NULL;
ninoderkinderen 0:8d87bc453349 1842 }
ninoderkinderen 0:8d87bc453349 1843
ninoderkinderen 0:8d87bc453349 1844 /* Prepare for a new packet. */
ninoderkinderen 0:8d87bc453349 1845 pcrx->inFCS = PPP_INITFCS;
ninoderkinderen 0:8d87bc453349 1846 pcrx->inState = PDADDRESS;
ninoderkinderen 0:8d87bc453349 1847 pcrx->inEscaped = 0;
ninoderkinderen 0:8d87bc453349 1848 /* Other characters are usually control characters that may have
ninoderkinderen 0:8d87bc453349 1849 * been inserted by the physical layer so here we just drop them. */
ninoderkinderen 0:8d87bc453349 1850 } else {
ninoderkinderen 0:8d87bc453349 1851 PPPDEBUG(LOG_WARNING,
ninoderkinderen 0:8d87bc453349 1852 ("pppInProc[%d]: Dropping ACCM char <%d>\n", pcrx->pd, curChar));
ninoderkinderen 0:8d87bc453349 1853 }
ninoderkinderen 0:8d87bc453349 1854 /* Process other characters. */
ninoderkinderen 0:8d87bc453349 1855 } else {
ninoderkinderen 0:8d87bc453349 1856 /* Unencode escaped characters. */
ninoderkinderen 0:8d87bc453349 1857 if (pcrx->inEscaped) {
ninoderkinderen 0:8d87bc453349 1858 pcrx->inEscaped = 0;
ninoderkinderen 0:8d87bc453349 1859 curChar ^= PPP_TRANS;
ninoderkinderen 0:8d87bc453349 1860 }
ninoderkinderen 0:8d87bc453349 1861
ninoderkinderen 0:8d87bc453349 1862 /* Process character relative to current state. */
ninoderkinderen 0:8d87bc453349 1863 switch(pcrx->inState) {
ninoderkinderen 0:8d87bc453349 1864 case PDIDLE: /* Idle state - waiting. */
ninoderkinderen 0:8d87bc453349 1865 /* Drop the character if it's not 0xff
ninoderkinderen 0:8d87bc453349 1866 * we would have processed a flag character above. */
ninoderkinderen 0:8d87bc453349 1867 if (curChar != PPP_ALLSTATIONS) {
ninoderkinderen 0:8d87bc453349 1868 break;
ninoderkinderen 0:8d87bc453349 1869 }
ninoderkinderen 0:8d87bc453349 1870
ninoderkinderen 0:8d87bc453349 1871 /* Fall through */
ninoderkinderen 0:8d87bc453349 1872 case PDSTART: /* Process start flag. */
ninoderkinderen 0:8d87bc453349 1873 /* Prepare for a new packet. */
ninoderkinderen 0:8d87bc453349 1874 pcrx->inFCS = PPP_INITFCS;
ninoderkinderen 0:8d87bc453349 1875
ninoderkinderen 0:8d87bc453349 1876 /* Fall through */
ninoderkinderen 0:8d87bc453349 1877 case PDADDRESS: /* Process address field. */
ninoderkinderen 0:8d87bc453349 1878 if (curChar == PPP_ALLSTATIONS) {
ninoderkinderen 0:8d87bc453349 1879 pcrx->inState = PDCONTROL;
ninoderkinderen 0:8d87bc453349 1880 break;
ninoderkinderen 0:8d87bc453349 1881 }
ninoderkinderen 0:8d87bc453349 1882 /* Else assume compressed address and control fields so
ninoderkinderen 0:8d87bc453349 1883 * fall through to get the protocol... */
ninoderkinderen 0:8d87bc453349 1884 case PDCONTROL: /* Process control field. */
ninoderkinderen 0:8d87bc453349 1885 /* If we don't get a valid control code, restart. */
ninoderkinderen 0:8d87bc453349 1886 if (curChar == PPP_UI) {
ninoderkinderen 0:8d87bc453349 1887 pcrx->inState = PDPROTOCOL1;
ninoderkinderen 0:8d87bc453349 1888 break;
ninoderkinderen 0:8d87bc453349 1889 }
ninoderkinderen 0:8d87bc453349 1890 #if 0
ninoderkinderen 0:8d87bc453349 1891 else {
ninoderkinderen 0:8d87bc453349 1892 PPPDEBUG(LOG_WARNING,
ninoderkinderen 0:8d87bc453349 1893 ("pppInProc[%d]: Invalid control <%d>\n", pcrx->pd, curChar));
ninoderkinderen 0:8d87bc453349 1894 pcrx->inState = PDSTART;
ninoderkinderen 0:8d87bc453349 1895 }
ninoderkinderen 0:8d87bc453349 1896 #endif
ninoderkinderen 0:8d87bc453349 1897 case PDPROTOCOL1: /* Process protocol field 1. */
ninoderkinderen 0:8d87bc453349 1898 /* If the lower bit is set, this is the end of the protocol
ninoderkinderen 0:8d87bc453349 1899 * field. */
ninoderkinderen 0:8d87bc453349 1900 if (curChar & 1) {
ninoderkinderen 0:8d87bc453349 1901 pcrx->inProtocol = curChar;
ninoderkinderen 0:8d87bc453349 1902 pcrx->inState = PDDATA;
ninoderkinderen 0:8d87bc453349 1903 } else {
ninoderkinderen 0:8d87bc453349 1904 pcrx->inProtocol = (u_int)curChar << 8;
ninoderkinderen 0:8d87bc453349 1905 pcrx->inState = PDPROTOCOL2;
ninoderkinderen 0:8d87bc453349 1906 }
ninoderkinderen 0:8d87bc453349 1907 break;
ninoderkinderen 0:8d87bc453349 1908 case PDPROTOCOL2: /* Process protocol field 2. */
ninoderkinderen 0:8d87bc453349 1909 pcrx->inProtocol |= curChar;
ninoderkinderen 0:8d87bc453349 1910 pcrx->inState = PDDATA;
ninoderkinderen 0:8d87bc453349 1911 break;
ninoderkinderen 0:8d87bc453349 1912 case PDDATA: /* Process data byte. */
ninoderkinderen 0:8d87bc453349 1913 /* Make space to receive processed data. */
ninoderkinderen 0:8d87bc453349 1914 if (pcrx->inTail == NULL || pcrx->inTail->len == PBUF_POOL_BUFSIZE) {
ninoderkinderen 0:8d87bc453349 1915 if(pcrx->inTail) {
ninoderkinderen 0:8d87bc453349 1916 pcrx->inTail->tot_len = pcrx->inTail->len;
ninoderkinderen 0:8d87bc453349 1917 if (pcrx->inTail != pcrx->inHead) {
ninoderkinderen 0:8d87bc453349 1918 pbuf_cat(pcrx->inHead, pcrx->inTail);
ninoderkinderen 0:8d87bc453349 1919 }
ninoderkinderen 0:8d87bc453349 1920 }
ninoderkinderen 0:8d87bc453349 1921 /* If we haven't started a packet, we need a packet header. */
ninoderkinderen 0:8d87bc453349 1922 nextNBuf = pbuf_alloc(PBUF_RAW, 0, PBUF_POOL);
ninoderkinderen 0:8d87bc453349 1923 if (nextNBuf == NULL) {
ninoderkinderen 0:8d87bc453349 1924 /* No free buffers. Drop the input packet and let the
ninoderkinderen 0:8d87bc453349 1925 * higher layers deal with it. Continue processing
ninoderkinderen 0:8d87bc453349 1926 * the received pbuf chain in case a new packet starts. */
ninoderkinderen 0:8d87bc453349 1927 PPPDEBUG(LOG_ERR, ("pppInProc[%d]: NO FREE MBUFS!\n", pcrx->pd));
ninoderkinderen 0:8d87bc453349 1928 LINK_STATS_INC(link.memerr);
ninoderkinderen 0:8d87bc453349 1929 pppDrop(pcrx);
ninoderkinderen 0:8d87bc453349 1930 pcrx->inState = PDSTART; /* Wait for flag sequence. */
ninoderkinderen 0:8d87bc453349 1931 break;
ninoderkinderen 0:8d87bc453349 1932 }
ninoderkinderen 0:8d87bc453349 1933 if (pcrx->inHead == NULL) {
ninoderkinderen 0:8d87bc453349 1934 struct pppInputHeader *pih = (struct pppInputHeader *)nextNBuf->payload;
ninoderkinderen 0:8d87bc453349 1935
ninoderkinderen 0:8d87bc453349 1936 pih->unit = pcrx->pd;
ninoderkinderen 0:8d87bc453349 1937 pih->proto = pcrx->inProtocol;
ninoderkinderen 0:8d87bc453349 1938
ninoderkinderen 0:8d87bc453349 1939 nextNBuf->len += sizeof(*pih);
ninoderkinderen 0:8d87bc453349 1940
ninoderkinderen 0:8d87bc453349 1941 pcrx->inHead = nextNBuf;
ninoderkinderen 0:8d87bc453349 1942 }
ninoderkinderen 0:8d87bc453349 1943 pcrx->inTail = nextNBuf;
ninoderkinderen 0:8d87bc453349 1944 }
ninoderkinderen 0:8d87bc453349 1945 /* Load character into buffer. */
ninoderkinderen 0:8d87bc453349 1946 ((u_char*)pcrx->inTail->payload)[pcrx->inTail->len++] = curChar;
ninoderkinderen 0:8d87bc453349 1947 break;
ninoderkinderen 0:8d87bc453349 1948 }
ninoderkinderen 0:8d87bc453349 1949
ninoderkinderen 0:8d87bc453349 1950 /* update the frame check sequence number. */
ninoderkinderen 0:8d87bc453349 1951 pcrx->inFCS = PPP_FCS(pcrx->inFCS, curChar);
ninoderkinderen 0:8d87bc453349 1952 }
ninoderkinderen 0:8d87bc453349 1953 } /* while (l-- > 0), all bytes processed */
ninoderkinderen 0:8d87bc453349 1954
ninoderkinderen 0:8d87bc453349 1955 avRandomize();
ninoderkinderen 0:8d87bc453349 1956 }
ninoderkinderen 0:8d87bc453349 1957 #endif /* PPPOS_SUPPORT */
ninoderkinderen 0:8d87bc453349 1958
ninoderkinderen 0:8d87bc453349 1959 #if PPPOE_SUPPORT
ninoderkinderen 0:8d87bc453349 1960 void
ninoderkinderen 0:8d87bc453349 1961 pppInProcOverEthernet(int pd, struct pbuf *pb)
ninoderkinderen 0:8d87bc453349 1962 {
ninoderkinderen 0:8d87bc453349 1963 struct pppInputHeader *pih;
ninoderkinderen 0:8d87bc453349 1964 u16_t inProtocol;
ninoderkinderen 0:8d87bc453349 1965
ninoderkinderen 0:8d87bc453349 1966 if(pb->len < sizeof(inProtocol)) {
ninoderkinderen 0:8d87bc453349 1967 PPPDEBUG(LOG_ERR, ("pppInProcOverEthernet: too small for protocol field\n"));
ninoderkinderen 0:8d87bc453349 1968 goto drop;
ninoderkinderen 0:8d87bc453349 1969 }
ninoderkinderen 0:8d87bc453349 1970
ninoderkinderen 0:8d87bc453349 1971 inProtocol = (((u8_t *)pb->payload)[0] << 8) | ((u8_t*)pb->payload)[1];
ninoderkinderen 0:8d87bc453349 1972
ninoderkinderen 0:8d87bc453349 1973 /* make room for pppInputHeader - should not fail */
ninoderkinderen 0:8d87bc453349 1974 if (pbuf_header(pb, sizeof(*pih) - sizeof(inProtocol)) != 0) {
ninoderkinderen 0:8d87bc453349 1975 PPPDEBUG(LOG_ERR, ("pppInProcOverEthernet: could not allocate room for header\n"));
ninoderkinderen 0:8d87bc453349 1976 goto drop;
ninoderkinderen 0:8d87bc453349 1977 }
ninoderkinderen 0:8d87bc453349 1978
ninoderkinderen 0:8d87bc453349 1979 pih = pb->payload;
ninoderkinderen 0:8d87bc453349 1980
ninoderkinderen 0:8d87bc453349 1981 pih->unit = pd;
ninoderkinderen 0:8d87bc453349 1982 pih->proto = inProtocol;
ninoderkinderen 0:8d87bc453349 1983
ninoderkinderen 0:8d87bc453349 1984 /* Dispatch the packet thereby consuming it. */
ninoderkinderen 0:8d87bc453349 1985 pppInput(pb);
ninoderkinderen 0:8d87bc453349 1986 return;
ninoderkinderen 0:8d87bc453349 1987
ninoderkinderen 0:8d87bc453349 1988 drop:
ninoderkinderen 0:8d87bc453349 1989 LINK_STATS_INC(link.drop);
ninoderkinderen 0:8d87bc453349 1990 snmp_inc_ifindiscards(&pppControl[pd].netif);
ninoderkinderen 0:8d87bc453349 1991 pbuf_free(pb);
ninoderkinderen 0:8d87bc453349 1992 return;
ninoderkinderen 0:8d87bc453349 1993 }
ninoderkinderen 0:8d87bc453349 1994 #endif /* PPPOE_SUPPORT */
ninoderkinderen 0:8d87bc453349 1995
ninoderkinderen 0:8d87bc453349 1996 #if LWIP_NETIF_STATUS_CALLBACK
ninoderkinderen 0:8d87bc453349 1997 /** Set the status callback of a PPP's netif
ninoderkinderen 0:8d87bc453349 1998 *
ninoderkinderen 0:8d87bc453349 1999 * @param pd The PPP descriptor returned by pppOpen()
ninoderkinderen 0:8d87bc453349 2000 * @param status_callback pointer to the status callback function
ninoderkinderen 0:8d87bc453349 2001 *
ninoderkinderen 0:8d87bc453349 2002 * @see netif_set_status_callback
ninoderkinderen 0:8d87bc453349 2003 */
ninoderkinderen 0:8d87bc453349 2004 void
ninoderkinderen 0:8d87bc453349 2005 ppp_set_netif_statuscallback(int pd, netif_status_callback_fn status_callback)
ninoderkinderen 0:8d87bc453349 2006 {
ninoderkinderen 0:8d87bc453349 2007 netif_set_status_callback(&pppControl[pd].netif, status_callback);
ninoderkinderen 0:8d87bc453349 2008 }
ninoderkinderen 0:8d87bc453349 2009 #endif /* LWIP_NETIF_STATUS_CALLBACK */
ninoderkinderen 0:8d87bc453349 2010
ninoderkinderen 0:8d87bc453349 2011 #if LWIP_NETIF_LINK_CALLBACK
ninoderkinderen 0:8d87bc453349 2012 /** Set the link callback of a PPP's netif
ninoderkinderen 0:8d87bc453349 2013 *
ninoderkinderen 0:8d87bc453349 2014 * @param pd The PPP descriptor returned by pppOpen()
ninoderkinderen 0:8d87bc453349 2015 * @param link_callback pointer to the link callback function
ninoderkinderen 0:8d87bc453349 2016 *
ninoderkinderen 0:8d87bc453349 2017 * @see netif_set_link_callback
ninoderkinderen 0:8d87bc453349 2018 */
ninoderkinderen 0:8d87bc453349 2019 void
ninoderkinderen 0:8d87bc453349 2020 ppp_set_netif_linkcallback(int pd, netif_status_callback_fn link_callback)
ninoderkinderen 0:8d87bc453349 2021 {
ninoderkinderen 0:8d87bc453349 2022 netif_set_link_callback(&pppControl[pd].netif, link_callback);
ninoderkinderen 0:8d87bc453349 2023 }
ninoderkinderen 0:8d87bc453349 2024 #endif /* LWIP_NETIF_LINK_CALLBACK */
ninoderkinderen 0:8d87bc453349 2025
ninoderkinderen 0:8d87bc453349 2026 #endif /* PPP_SUPPORT */