CK Sin / Mbed 2 deprecated Ethernetwebsocket

Ethernetwebsoc

Dependencies:   C12832_lcd LM75B WebSocketClient mbed-rtos mbed Socket lwip-eth lwip-sys lwip

EthernetInterface/lwip/netif/ppp/ppp.c@0:0ed2a7c7190c, 2013-05-31 (annotated)

Committer:
GordonSin
Date:
Fri May 31 04:09:54 2013 +0000
Revision:
0:0ed2a7c7190c
31/5/2013;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
GordonSin 0:0ed2a7c7190c 1 /*****************************************************************************
GordonSin 0:0ed2a7c7190c 2 * ppp.c - Network Point to Point Protocol program file.
GordonSin 0:0ed2a7c7190c 3 *
GordonSin 0:0ed2a7c7190c 4 * Copyright (c) 2003 by Marc Boucher, Services Informatiques (MBSI) inc.
GordonSin 0:0ed2a7c7190c 5 * portions Copyright (c) 1997 by Global Election Systems Inc.
GordonSin 0:0ed2a7c7190c 6 *
GordonSin 0:0ed2a7c7190c 7 * The authors hereby grant permission to use, copy, modify, distribute,
GordonSin 0:0ed2a7c7190c 8 * and license this software and its documentation for any purpose, provided
GordonSin 0:0ed2a7c7190c 9 * that existing copyright notices are retained in all copies and that this
GordonSin 0:0ed2a7c7190c 10 * notice and the following disclaimer are included verbatim in any
GordonSin 0:0ed2a7c7190c 11 * distributions. No written agreement, license, or royalty fee is required
GordonSin 0:0ed2a7c7190c 12 * for any of the authorized uses.
GordonSin 0:0ed2a7c7190c 13 *
GordonSin 0:0ed2a7c7190c 14 * THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS *AS IS* AND ANY EXPRESS OR
GordonSin 0:0ed2a7c7190c 15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
GordonSin 0:0ed2a7c7190c 16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
GordonSin 0:0ed2a7c7190c 17 * IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
GordonSin 0:0ed2a7c7190c 18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
GordonSin 0:0ed2a7c7190c 19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
GordonSin 0:0ed2a7c7190c 20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
GordonSin 0:0ed2a7c7190c 21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
GordonSin 0:0ed2a7c7190c 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
GordonSin 0:0ed2a7c7190c 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
GordonSin 0:0ed2a7c7190c 24 *
GordonSin 0:0ed2a7c7190c 25 ******************************************************************************
GordonSin 0:0ed2a7c7190c 26 * REVISION HISTORY
GordonSin 0:0ed2a7c7190c 27 *
GordonSin 0:0ed2a7c7190c 28 * 03-01-01 Marc Boucher <marc@mbsi.ca>
GordonSin 0:0ed2a7c7190c 29 * Ported to lwIP.
GordonSin 0:0ed2a7c7190c 30 * 97-11-05 Guy Lancaster <lancasterg@acm.org>, Global Election Systems Inc.
GordonSin 0:0ed2a7c7190c 31 * Original.
GordonSin 0:0ed2a7c7190c 32 *****************************************************************************/
GordonSin 0:0ed2a7c7190c 33
GordonSin 0:0ed2a7c7190c 34 /*
GordonSin 0:0ed2a7c7190c 35 * ppp_defs.h - PPP definitions.
GordonSin 0:0ed2a7c7190c 36 *
GordonSin 0:0ed2a7c7190c 37 * if_pppvar.h - private structures and declarations for PPP.
GordonSin 0:0ed2a7c7190c 38 *
GordonSin 0:0ed2a7c7190c 39 * Copyright (c) 1994 The Australian National University.
GordonSin 0:0ed2a7c7190c 40 * All rights reserved.
GordonSin 0:0ed2a7c7190c 41 *
GordonSin 0:0ed2a7c7190c 42 * Permission to use, copy, modify, and distribute this software and its
GordonSin 0:0ed2a7c7190c 43 * documentation is hereby granted, provided that the above copyright
GordonSin 0:0ed2a7c7190c 44 * notice appears in all copies. This software is provided without any
GordonSin 0:0ed2a7c7190c 45 * warranty, express or implied. The Australian National University
GordonSin 0:0ed2a7c7190c 46 * makes no representations about the suitability of this software for
GordonSin 0:0ed2a7c7190c 47 * any purpose.
GordonSin 0:0ed2a7c7190c 48 *
GordonSin 0:0ed2a7c7190c 49 * IN NO EVENT SHALL THE AUSTRALIAN NATIONAL UNIVERSITY BE LIABLE TO ANY
GordonSin 0:0ed2a7c7190c 50 * PARTY FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
GordonSin 0:0ed2a7c7190c 51 * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF
GordonSin 0:0ed2a7c7190c 52 * THE AUSTRALIAN NATIONAL UNIVERSITY HAVE BEEN ADVISED OF THE POSSIBILITY
GordonSin 0:0ed2a7c7190c 53 * OF SUCH DAMAGE.
GordonSin 0:0ed2a7c7190c 54 *
GordonSin 0:0ed2a7c7190c 55 * THE AUSTRALIAN NATIONAL UNIVERSITY SPECIFICALLY DISCLAIMS ANY WARRANTIES,
GordonSin 0:0ed2a7c7190c 56 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
GordonSin 0:0ed2a7c7190c 57 * AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
GordonSin 0:0ed2a7c7190c 58 * ON AN "AS IS" BASIS, AND THE AUSTRALIAN NATIONAL UNIVERSITY HAS NO
GordonSin 0:0ed2a7c7190c 59 * OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS,
GordonSin 0:0ed2a7c7190c 60 * OR MODIFICATIONS.
GordonSin 0:0ed2a7c7190c 61 */
GordonSin 0:0ed2a7c7190c 62
GordonSin 0:0ed2a7c7190c 63 /*
GordonSin 0:0ed2a7c7190c 64 * if_ppp.h - Point-to-Point Protocol definitions.
GordonSin 0:0ed2a7c7190c 65 *
GordonSin 0:0ed2a7c7190c 66 * Copyright (c) 1989 Carnegie Mellon University.
GordonSin 0:0ed2a7c7190c 67 * All rights reserved.
GordonSin 0:0ed2a7c7190c 68 *
GordonSin 0:0ed2a7c7190c 69 * Redistribution and use in source and binary forms are permitted
GordonSin 0:0ed2a7c7190c 70 * provided that the above copyright notice and this paragraph are
GordonSin 0:0ed2a7c7190c 71 * duplicated in all such forms and that any documentation,
GordonSin 0:0ed2a7c7190c 72 * advertising materials, and other materials related to such
GordonSin 0:0ed2a7c7190c 73 * distribution and use acknowledge that the software was developed
GordonSin 0:0ed2a7c7190c 74 * by Carnegie Mellon University. The name of the
GordonSin 0:0ed2a7c7190c 75 * University may not be used to endorse or promote products derived
GordonSin 0:0ed2a7c7190c 76 * from this software without specific prior written permission.
GordonSin 0:0ed2a7c7190c 77 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
GordonSin 0:0ed2a7c7190c 78 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
GordonSin 0:0ed2a7c7190c 79 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
GordonSin 0:0ed2a7c7190c 80 */
GordonSin 0:0ed2a7c7190c 81
GordonSin 0:0ed2a7c7190c 82 #include "lwip/opt.h"
GordonSin 0:0ed2a7c7190c 83
GordonSin 0:0ed2a7c7190c 84 #if PPP_SUPPORT /* don't build if not configured for use in lwipopts.h */
GordonSin 0:0ed2a7c7190c 85
GordonSin 0:0ed2a7c7190c 86 #include "lwip/ip.h" /* for ip_input() */
GordonSin 0:0ed2a7c7190c 87
GordonSin 0:0ed2a7c7190c 88 #include "ppp.h"
GordonSin 0:0ed2a7c7190c 89 #include "pppdebug.h"
GordonSin 0:0ed2a7c7190c 90
GordonSin 0:0ed2a7c7190c 91 #include "randm.h"
GordonSin 0:0ed2a7c7190c 92 #include "fsm.h"
GordonSin 0:0ed2a7c7190c 93 #if PAP_SUPPORT
GordonSin 0:0ed2a7c7190c 94 #include "pap.h"
GordonSin 0:0ed2a7c7190c 95 #endif /* PAP_SUPPORT */
GordonSin 0:0ed2a7c7190c 96 #if CHAP_SUPPORT
GordonSin 0:0ed2a7c7190c 97 #include "chap.h"
GordonSin 0:0ed2a7c7190c 98 #endif /* CHAP_SUPPORT */
GordonSin 0:0ed2a7c7190c 99 #include "ipcp.h"
GordonSin 0:0ed2a7c7190c 100 #include "lcp.h"
GordonSin 0:0ed2a7c7190c 101 #include "magic.h"
GordonSin 0:0ed2a7c7190c 102 #include "auth.h"
GordonSin 0:0ed2a7c7190c 103 #if VJ_SUPPORT
GordonSin 0:0ed2a7c7190c 104 #include "vj.h"
GordonSin 0:0ed2a7c7190c 105 #endif /* VJ_SUPPORT */
GordonSin 0:0ed2a7c7190c 106 #if PPPOE_SUPPORT
GordonSin 0:0ed2a7c7190c 107 #include "netif/ppp_oe.h"
GordonSin 0:0ed2a7c7190c 108 #endif /* PPPOE_SUPPORT */
GordonSin 0:0ed2a7c7190c 109
GordonSin 0:0ed2a7c7190c 110 #include "lwip/tcpip.h"
GordonSin 0:0ed2a7c7190c 111 #include "lwip/api.h"
GordonSin 0:0ed2a7c7190c 112 #include "lwip/snmp.h"
GordonSin 0:0ed2a7c7190c 113
GordonSin 0:0ed2a7c7190c 114 #include <string.h>
GordonSin 0:0ed2a7c7190c 115
GordonSin 0:0ed2a7c7190c 116 /*************************/
GordonSin 0:0ed2a7c7190c 117 /*** LOCAL DEFINITIONS ***/
GordonSin 0:0ed2a7c7190c 118 /*************************/
GordonSin 0:0ed2a7c7190c 119
GordonSin 0:0ed2a7c7190c 120 /** PPP_INPROC_MULTITHREADED==1 call pppInput using tcpip_callback().
GordonSin 0:0ed2a7c7190c 121 * Set this to 0 if pppInProc is called inside tcpip_thread or with NO_SYS==1.
GordonSin 0:0ed2a7c7190c 122 * Default is 1 for NO_SYS==0 (multithreaded) and 0 for NO_SYS==1 (single-threaded).
GordonSin 0:0ed2a7c7190c 123 */
GordonSin 0:0ed2a7c7190c 124 #ifndef PPP_INPROC_MULTITHREADED
GordonSin 0:0ed2a7c7190c 125 #define PPP_INPROC_MULTITHREADED (NO_SYS==0)
GordonSin 0:0ed2a7c7190c 126 #endif
GordonSin 0:0ed2a7c7190c 127
GordonSin 0:0ed2a7c7190c 128 /** PPP_INPROC_OWNTHREAD==1: start a dedicated RX thread per PPP session.
GordonSin 0:0ed2a7c7190c 129 * Default is 0: call pppos_input() for received raw characters, charcater
GordonSin 0:0ed2a7c7190c 130 * reception is up to the port */
GordonSin 0:0ed2a7c7190c 131 #ifndef PPP_INPROC_OWNTHREAD
GordonSin 0:0ed2a7c7190c 132 #define PPP_INPROC_OWNTHREAD PPP_INPROC_MULTITHREADED
GordonSin 0:0ed2a7c7190c 133 #endif
GordonSin 0:0ed2a7c7190c 134
GordonSin 0:0ed2a7c7190c 135 #if PPP_INPROC_OWNTHREAD && !PPP_INPROC_MULTITHREADED
GordonSin 0:0ed2a7c7190c 136 #error "PPP_INPROC_OWNTHREAD needs PPP_INPROC_MULTITHREADED==1"
GordonSin 0:0ed2a7c7190c 137 #endif
GordonSin 0:0ed2a7c7190c 138
GordonSin 0:0ed2a7c7190c 139 /*
GordonSin 0:0ed2a7c7190c 140 * The basic PPP frame.
GordonSin 0:0ed2a7c7190c 141 */
GordonSin 0:0ed2a7c7190c 142 #define PPP_ADDRESS(p) (((u_char *)(p))[0])
GordonSin 0:0ed2a7c7190c 143 #define PPP_CONTROL(p) (((u_char *)(p))[1])
GordonSin 0:0ed2a7c7190c 144 #define PPP_PROTOCOL(p) ((((u_char *)(p))[2] << 8) + ((u_char *)(p))[3])
GordonSin 0:0ed2a7c7190c 145
GordonSin 0:0ed2a7c7190c 146 /* PPP packet parser states. Current state indicates operation yet to be
GordonSin 0:0ed2a7c7190c 147 * completed. */
GordonSin 0:0ed2a7c7190c 148 typedef enum {
GordonSin 0:0ed2a7c7190c 149 PDIDLE = 0, /* Idle state - waiting. */
GordonSin 0:0ed2a7c7190c 150 PDSTART, /* Process start flag. */
GordonSin 0:0ed2a7c7190c 151 PDADDRESS, /* Process address field. */
GordonSin 0:0ed2a7c7190c 152 PDCONTROL, /* Process control field. */
GordonSin 0:0ed2a7c7190c 153 PDPROTOCOL1, /* Process protocol field 1. */
GordonSin 0:0ed2a7c7190c 154 PDPROTOCOL2, /* Process protocol field 2. */
GordonSin 0:0ed2a7c7190c 155 PDDATA /* Process data byte. */
GordonSin 0:0ed2a7c7190c 156 } PPPDevStates;
GordonSin 0:0ed2a7c7190c 157
GordonSin 0:0ed2a7c7190c 158 #define ESCAPE_P(accm, c) ((accm)[(c) >> 3] & pppACCMMask[c & 0x07])
GordonSin 0:0ed2a7c7190c 159
GordonSin 0:0ed2a7c7190c 160 /************************/
GordonSin 0:0ed2a7c7190c 161 /*** LOCAL DATA TYPES ***/
GordonSin 0:0ed2a7c7190c 162 /************************/
GordonSin 0:0ed2a7c7190c 163
GordonSin 0:0ed2a7c7190c 164 /** RX buffer size: this may be configured smaller! */
GordonSin 0:0ed2a7c7190c 165 #ifndef PPPOS_RX_BUFSIZE
GordonSin 0:0ed2a7c7190c 166 #define PPPOS_RX_BUFSIZE (PPP_MRU + PPP_HDRLEN)
GordonSin 0:0ed2a7c7190c 167 #endif
GordonSin 0:0ed2a7c7190c 168
GordonSin 0:0ed2a7c7190c 169 typedef struct PPPControlRx_s {
GordonSin 0:0ed2a7c7190c 170 /** unit number / ppp descriptor */
GordonSin 0:0ed2a7c7190c 171 int pd;
GordonSin 0:0ed2a7c7190c 172 /** the rx file descriptor */
GordonSin 0:0ed2a7c7190c 173 sio_fd_t fd;
GordonSin 0:0ed2a7c7190c 174 /** receive buffer - encoded data is stored here */
GordonSin 0:0ed2a7c7190c 175 u_char rxbuf[PPPOS_RX_BUFSIZE];
GordonSin 0:0ed2a7c7190c 176
GordonSin 0:0ed2a7c7190c 177 /* The input packet. */
GordonSin 0:0ed2a7c7190c 178 struct pbuf *inHead, *inTail;
GordonSin 0:0ed2a7c7190c 179
GordonSin 0:0ed2a7c7190c 180 #if PPPOS_SUPPORT
GordonSin 0:0ed2a7c7190c 181 u16_t inProtocol; /* The input protocol code. */
GordonSin 0:0ed2a7c7190c 182 u16_t inFCS; /* Input Frame Check Sequence value. */
GordonSin 0:0ed2a7c7190c 183 #endif /* PPPOS_SUPPORT */
GordonSin 0:0ed2a7c7190c 184 PPPDevStates inState; /* The input process state. */
GordonSin 0:0ed2a7c7190c 185 char inEscaped; /* Escape next character. */
GordonSin 0:0ed2a7c7190c 186 ext_accm inACCM; /* Async-Ctl-Char-Map for input. */
GordonSin 0:0ed2a7c7190c 187 } PPPControlRx;
GordonSin 0:0ed2a7c7190c 188
GordonSin 0:0ed2a7c7190c 189 /*
GordonSin 0:0ed2a7c7190c 190 * PPP interface control block.
GordonSin 0:0ed2a7c7190c 191 */
GordonSin 0:0ed2a7c7190c 192 typedef struct PPPControl_s {
GordonSin 0:0ed2a7c7190c 193 PPPControlRx rx;
GordonSin 0:0ed2a7c7190c 194 char openFlag; /* True when in use. */
GordonSin 0:0ed2a7c7190c 195 #if PPPOE_SUPPORT
GordonSin 0:0ed2a7c7190c 196 struct netif *ethif;
GordonSin 0:0ed2a7c7190c 197 struct pppoe_softc *pppoe_sc;
GordonSin 0:0ed2a7c7190c 198 #endif /* PPPOE_SUPPORT */
GordonSin 0:0ed2a7c7190c 199 int if_up; /* True when the interface is up. */
GordonSin 0:0ed2a7c7190c 200 int errCode; /* Code indicating why interface is down. */
GordonSin 0:0ed2a7c7190c 201 #if PPPOS_SUPPORT
GordonSin 0:0ed2a7c7190c 202 sio_fd_t fd; /* File device ID of port. */
GordonSin 0:0ed2a7c7190c 203 #endif /* PPPOS_SUPPORT */
GordonSin 0:0ed2a7c7190c 204 u16_t mtu; /* Peer's mru */
GordonSin 0:0ed2a7c7190c 205 int pcomp; /* Does peer accept protocol compression? */
GordonSin 0:0ed2a7c7190c 206 int accomp; /* Does peer accept addr/ctl compression? */
GordonSin 0:0ed2a7c7190c 207 u_long lastXMit; /* Time of last transmission. */
GordonSin 0:0ed2a7c7190c 208 ext_accm outACCM; /* Async-Ctl-Char-Map for output. */
GordonSin 0:0ed2a7c7190c 209 #if PPPOS_SUPPORT && VJ_SUPPORT
GordonSin 0:0ed2a7c7190c 210 int vjEnabled; /* Flag indicating VJ compression enabled. */
GordonSin 0:0ed2a7c7190c 211 struct vjcompress vjComp; /* Van Jacobson compression header. */
GordonSin 0:0ed2a7c7190c 212 #endif /* PPPOS_SUPPORT && VJ_SUPPORT */
GordonSin 0:0ed2a7c7190c 213
GordonSin 0:0ed2a7c7190c 214 struct netif netif;
GordonSin 0:0ed2a7c7190c 215
GordonSin 0:0ed2a7c7190c 216 struct ppp_addrs addrs;
GordonSin 0:0ed2a7c7190c 217
GordonSin 0:0ed2a7c7190c 218 void (*linkStatusCB)(void *ctx, int errCode, void *arg);
GordonSin 0:0ed2a7c7190c 219 void *linkStatusCtx;
GordonSin 0:0ed2a7c7190c 220
GordonSin 0:0ed2a7c7190c 221 } PPPControl;
GordonSin 0:0ed2a7c7190c 222
GordonSin 0:0ed2a7c7190c 223
GordonSin 0:0ed2a7c7190c 224 /*
GordonSin 0:0ed2a7c7190c 225 * Ioctl definitions.
GordonSin 0:0ed2a7c7190c 226 */
GordonSin 0:0ed2a7c7190c 227
GordonSin 0:0ed2a7c7190c 228 struct npioctl {
GordonSin 0:0ed2a7c7190c 229 int protocol; /* PPP procotol, e.g. PPP_IP */
GordonSin 0:0ed2a7c7190c 230 enum NPmode mode;
GordonSin 0:0ed2a7c7190c 231 };
GordonSin 0:0ed2a7c7190c 232
GordonSin 0:0ed2a7c7190c 233
GordonSin 0:0ed2a7c7190c 234
GordonSin 0:0ed2a7c7190c 235 /***********************************/
GordonSin 0:0ed2a7c7190c 236 /*** LOCAL FUNCTION DECLARATIONS ***/
GordonSin 0:0ed2a7c7190c 237 /***********************************/
GordonSin 0:0ed2a7c7190c 238 #if PPPOS_SUPPORT
GordonSin 0:0ed2a7c7190c 239 #if PPP_INPROC_OWNTHREAD
GordonSin 0:0ed2a7c7190c 240 static void pppInputThread(void *arg);
GordonSin 0:0ed2a7c7190c 241 #endif /* PPP_INPROC_OWNTHREAD */
GordonSin 0:0ed2a7c7190c 242 static void pppDrop(PPPControlRx *pcrx);
GordonSin 0:0ed2a7c7190c 243 static void pppInProc(PPPControlRx *pcrx, u_char *s, int l);
GordonSin 0:0ed2a7c7190c 244 #endif /* PPPOS_SUPPORT */
GordonSin 0:0ed2a7c7190c 245
GordonSin 0:0ed2a7c7190c 246
GordonSin 0:0ed2a7c7190c 247 /******************************/
GordonSin 0:0ed2a7c7190c 248 /*** PUBLIC DATA STRUCTURES ***/
GordonSin 0:0ed2a7c7190c 249 /******************************/
GordonSin 0:0ed2a7c7190c 250 u_long subnetMask;
GordonSin 0:0ed2a7c7190c 251
GordonSin 0:0ed2a7c7190c 252 static PPPControl pppControl[NUM_PPP] __attribute((section("AHBSRAM1"))); /* The PPP interface control blocks. */
GordonSin 0:0ed2a7c7190c 253
GordonSin 0:0ed2a7c7190c 254 sys_mbox_t pppMbox; //Used to signal PPP thread that a PPP session begins
GordonSin 0:0ed2a7c7190c 255
GordonSin 0:0ed2a7c7190c 256 /*
GordonSin 0:0ed2a7c7190c 257 * PPP Data Link Layer "protocol" table.
GordonSin 0:0ed2a7c7190c 258 * One entry per supported protocol.
GordonSin 0:0ed2a7c7190c 259 * The last entry must be NULL.
GordonSin 0:0ed2a7c7190c 260 */
GordonSin 0:0ed2a7c7190c 261 struct protent *ppp_protocols[] = {
GordonSin 0:0ed2a7c7190c 262 &lcp_protent,
GordonSin 0:0ed2a7c7190c 263 #if PAP_SUPPORT
GordonSin 0:0ed2a7c7190c 264 &pap_protent,
GordonSin 0:0ed2a7c7190c 265 #endif /* PAP_SUPPORT */
GordonSin 0:0ed2a7c7190c 266 #if CHAP_SUPPORT
GordonSin 0:0ed2a7c7190c 267 &chap_protent,
GordonSin 0:0ed2a7c7190c 268 #endif /* CHAP_SUPPORT */
GordonSin 0:0ed2a7c7190c 269 #if CBCP_SUPPORT
GordonSin 0:0ed2a7c7190c 270 &cbcp_protent,
GordonSin 0:0ed2a7c7190c 271 #endif /* CBCP_SUPPORT */
GordonSin 0:0ed2a7c7190c 272 &ipcp_protent,
GordonSin 0:0ed2a7c7190c 273 #if CCP_SUPPORT
GordonSin 0:0ed2a7c7190c 274 &ccp_protent,
GordonSin 0:0ed2a7c7190c 275 #endif /* CCP_SUPPORT */
GordonSin 0:0ed2a7c7190c 276 NULL
GordonSin 0:0ed2a7c7190c 277 };
GordonSin 0:0ed2a7c7190c 278
GordonSin 0:0ed2a7c7190c 279
GordonSin 0:0ed2a7c7190c 280 /*
GordonSin 0:0ed2a7c7190c 281 * Buffers for outgoing packets. This must be accessed only from the appropriate
GordonSin 0:0ed2a7c7190c 282 * PPP task so that it doesn't need to be protected to avoid collisions.
GordonSin 0:0ed2a7c7190c 283 */
GordonSin 0:0ed2a7c7190c 284 u_char outpacket_buf[NUM_PPP][PPP_MRU+PPP_HDRLEN] __attribute((section("AHBSRAM1")));
GordonSin 0:0ed2a7c7190c 285
GordonSin 0:0ed2a7c7190c 286
GordonSin 0:0ed2a7c7190c 287 /*****************************/
GordonSin 0:0ed2a7c7190c 288 /*** LOCAL DATA STRUCTURES ***/
GordonSin 0:0ed2a7c7190c 289 /*****************************/
GordonSin 0:0ed2a7c7190c 290
GordonSin 0:0ed2a7c7190c 291 #if PPPOS_SUPPORT
GordonSin 0:0ed2a7c7190c 292 /*
GordonSin 0:0ed2a7c7190c 293 * FCS lookup table as calculated by genfcstab.
GordonSin 0:0ed2a7c7190c 294 * @todo: smaller, slower implementation for lower memory footprint?
GordonSin 0:0ed2a7c7190c 295 */
GordonSin 0:0ed2a7c7190c 296 static const u_short fcstab[256] = {
GordonSin 0:0ed2a7c7190c 297 0x0000, 0x1189, 0x2312, 0x329b, 0x4624, 0x57ad, 0x6536, 0x74bf,
GordonSin 0:0ed2a7c7190c 298 0x8c48, 0x9dc1, 0xaf5a, 0xbed3, 0xca6c, 0xdbe5, 0xe97e, 0xf8f7,
GordonSin 0:0ed2a7c7190c 299 0x1081, 0x0108, 0x3393, 0x221a, 0x56a5, 0x472c, 0x75b7, 0x643e,
GordonSin 0:0ed2a7c7190c 300 0x9cc9, 0x8d40, 0xbfdb, 0xae52, 0xdaed, 0xcb64, 0xf9ff, 0xe876,
GordonSin 0:0ed2a7c7190c 301 0x2102, 0x308b, 0x0210, 0x1399, 0x6726, 0x76af, 0x4434, 0x55bd,
GordonSin 0:0ed2a7c7190c 302 0xad4a, 0xbcc3, 0x8e58, 0x9fd1, 0xeb6e, 0xfae7, 0xc87c, 0xd9f5,
GordonSin 0:0ed2a7c7190c 303 0x3183, 0x200a, 0x1291, 0x0318, 0x77a7, 0x662e, 0x54b5, 0x453c,
GordonSin 0:0ed2a7c7190c 304 0xbdcb, 0xac42, 0x9ed9, 0x8f50, 0xfbef, 0xea66, 0xd8fd, 0xc974,
GordonSin 0:0ed2a7c7190c 305 0x4204, 0x538d, 0x6116, 0x709f, 0x0420, 0x15a9, 0x2732, 0x36bb,
GordonSin 0:0ed2a7c7190c 306 0xce4c, 0xdfc5, 0xed5e, 0xfcd7, 0x8868, 0x99e1, 0xab7a, 0xbaf3,
GordonSin 0:0ed2a7c7190c 307 0x5285, 0x430c, 0x7197, 0x601e, 0x14a1, 0x0528, 0x37b3, 0x263a,
GordonSin 0:0ed2a7c7190c 308 0xdecd, 0xcf44, 0xfddf, 0xec56, 0x98e9, 0x8960, 0xbbfb, 0xaa72,
GordonSin 0:0ed2a7c7190c 309 0x6306, 0x728f, 0x4014, 0x519d, 0x2522, 0x34ab, 0x0630, 0x17b9,
GordonSin 0:0ed2a7c7190c 310 0xef4e, 0xfec7, 0xcc5c, 0xddd5, 0xa96a, 0xb8e3, 0x8a78, 0x9bf1,
GordonSin 0:0ed2a7c7190c 311 0x7387, 0x620e, 0x5095, 0x411c, 0x35a3, 0x242a, 0x16b1, 0x0738,
GordonSin 0:0ed2a7c7190c 312 0xffcf, 0xee46, 0xdcdd, 0xcd54, 0xb9eb, 0xa862, 0x9af9, 0x8b70,
GordonSin 0:0ed2a7c7190c 313 0x8408, 0x9581, 0xa71a, 0xb693, 0xc22c, 0xd3a5, 0xe13e, 0xf0b7,
GordonSin 0:0ed2a7c7190c 314 0x0840, 0x19c9, 0x2b52, 0x3adb, 0x4e64, 0x5fed, 0x6d76, 0x7cff,
GordonSin 0:0ed2a7c7190c 315 0x9489, 0x8500, 0xb79b, 0xa612, 0xd2ad, 0xc324, 0xf1bf, 0xe036,
GordonSin 0:0ed2a7c7190c 316 0x18c1, 0x0948, 0x3bd3, 0x2a5a, 0x5ee5, 0x4f6c, 0x7df7, 0x6c7e,
GordonSin 0:0ed2a7c7190c 317 0xa50a, 0xb483, 0x8618, 0x9791, 0xe32e, 0xf2a7, 0xc03c, 0xd1b5,
GordonSin 0:0ed2a7c7190c 318 0x2942, 0x38cb, 0x0a50, 0x1bd9, 0x6f66, 0x7eef, 0x4c74, 0x5dfd,
GordonSin 0:0ed2a7c7190c 319 0xb58b, 0xa402, 0x9699, 0x8710, 0xf3af, 0xe226, 0xd0bd, 0xc134,
GordonSin 0:0ed2a7c7190c 320 0x39c3, 0x284a, 0x1ad1, 0x0b58, 0x7fe7, 0x6e6e, 0x5cf5, 0x4d7c,
GordonSin 0:0ed2a7c7190c 321 0xc60c, 0xd785, 0xe51e, 0xf497, 0x8028, 0x91a1, 0xa33a, 0xb2b3,
GordonSin 0:0ed2a7c7190c 322 0x4a44, 0x5bcd, 0x6956, 0x78df, 0x0c60, 0x1de9, 0x2f72, 0x3efb,
GordonSin 0:0ed2a7c7190c 323 0xd68d, 0xc704, 0xf59f, 0xe416, 0x90a9, 0x8120, 0xb3bb, 0xa232,
GordonSin 0:0ed2a7c7190c 324 0x5ac5, 0x4b4c, 0x79d7, 0x685e, 0x1ce1, 0x0d68, 0x3ff3, 0x2e7a,
GordonSin 0:0ed2a7c7190c 325 0xe70e, 0xf687, 0xc41c, 0xd595, 0xa12a, 0xb0a3, 0x8238, 0x93b1,
GordonSin 0:0ed2a7c7190c 326 0x6b46, 0x7acf, 0x4854, 0x59dd, 0x2d62, 0x3ceb, 0x0e70, 0x1ff9,
GordonSin 0:0ed2a7c7190c 327 0xf78f, 0xe606, 0xd49d, 0xc514, 0xb1ab, 0xa022, 0x92b9, 0x8330,
GordonSin 0:0ed2a7c7190c 328 0x7bc7, 0x6a4e, 0x58d5, 0x495c, 0x3de3, 0x2c6a, 0x1ef1, 0x0f78
GordonSin 0:0ed2a7c7190c 329 };
GordonSin 0:0ed2a7c7190c 330
GordonSin 0:0ed2a7c7190c 331 /* PPP's Asynchronous-Control-Character-Map. The mask array is used
GordonSin 0:0ed2a7c7190c 332 * to select the specific bit for a character. */
GordonSin 0:0ed2a7c7190c 333 static u_char pppACCMMask[] = {
GordonSin 0:0ed2a7c7190c 334 0x01,
GordonSin 0:0ed2a7c7190c 335 0x02,
GordonSin 0:0ed2a7c7190c 336 0x04,
GordonSin 0:0ed2a7c7190c 337 0x08,
GordonSin 0:0ed2a7c7190c 338 0x10,
GordonSin 0:0ed2a7c7190c 339 0x20,
GordonSin 0:0ed2a7c7190c 340 0x40,
GordonSin 0:0ed2a7c7190c 341 0x80
GordonSin 0:0ed2a7c7190c 342 };
GordonSin 0:0ed2a7c7190c 343
GordonSin 0:0ed2a7c7190c 344 /** Wake up the task blocked in reading from serial line (if any) */
GordonSin 0:0ed2a7c7190c 345 static void
GordonSin 0:0ed2a7c7190c 346 pppRecvWakeup(int pd)
GordonSin 0:0ed2a7c7190c 347 {
GordonSin 0:0ed2a7c7190c 348 PPPDEBUG(LOG_DEBUG, ("pppRecvWakeup: unit %d\n", pd));
GordonSin 0:0ed2a7c7190c 349 if (pppControl[pd].openFlag != 0) {
GordonSin 0:0ed2a7c7190c 350 sio_read_abort(pppControl[pd].fd);
GordonSin 0:0ed2a7c7190c 351 }
GordonSin 0:0ed2a7c7190c 352 }
GordonSin 0:0ed2a7c7190c 353 #endif /* PPPOS_SUPPORT */
GordonSin 0:0ed2a7c7190c 354
GordonSin 0:0ed2a7c7190c 355 void
GordonSin 0:0ed2a7c7190c 356 pppLinkTerminated(int pd)
GordonSin 0:0ed2a7c7190c 357 {
GordonSin 0:0ed2a7c7190c 358 PPPDEBUG(LOG_DEBUG, ("pppLinkTerminated: unit %d\n", pd));
GordonSin 0:0ed2a7c7190c 359
GordonSin 0:0ed2a7c7190c 360 #if PPPOE_SUPPORT
GordonSin 0:0ed2a7c7190c 361 if (pppControl[pd].ethif) {
GordonSin 0:0ed2a7c7190c 362 pppoe_disconnect(pppControl[pd].pppoe_sc);
GordonSin 0:0ed2a7c7190c 363 } else
GordonSin 0:0ed2a7c7190c 364 #endif /* PPPOE_SUPPORT */
GordonSin 0:0ed2a7c7190c 365 {
GordonSin 0:0ed2a7c7190c 366 #if PPPOS_SUPPORT
GordonSin 0:0ed2a7c7190c 367 PPPControl* pc;
GordonSin 0:0ed2a7c7190c 368 pppRecvWakeup(pd);
GordonSin 0:0ed2a7c7190c 369 pc = &pppControl[pd];
GordonSin 0:0ed2a7c7190c 370
GordonSin 0:0ed2a7c7190c 371 PPPDEBUG(LOG_DEBUG, ("pppLinkTerminated: unit %d: linkStatusCB=%p errCode=%d\n", pd, pc->linkStatusCB, pc->errCode));
GordonSin 0:0ed2a7c7190c 372 if (pc->linkStatusCB) {
GordonSin 0:0ed2a7c7190c 373 pc->linkStatusCB(pc->linkStatusCtx, pc->errCode ? pc->errCode : PPPERR_PROTOCOL, NULL);
GordonSin 0:0ed2a7c7190c 374 }
GordonSin 0:0ed2a7c7190c 375
GordonSin 0:0ed2a7c7190c 376 pc->openFlag = 0;/**/
GordonSin 0:0ed2a7c7190c 377 #endif /* PPPOS_SUPPORT */
GordonSin 0:0ed2a7c7190c 378 }
GordonSin 0:0ed2a7c7190c 379 PPPDEBUG(LOG_DEBUG, ("pppLinkTerminated: finished.\n"));
GordonSin 0:0ed2a7c7190c 380 }
GordonSin 0:0ed2a7c7190c 381
GordonSin 0:0ed2a7c7190c 382 void
GordonSin 0:0ed2a7c7190c 383 pppLinkDown(int pd)
GordonSin 0:0ed2a7c7190c 384 {
GordonSin 0:0ed2a7c7190c 385 PPPDEBUG(LOG_DEBUG, ("pppLinkDown: unit %d\n", pd));
GordonSin 0:0ed2a7c7190c 386
GordonSin 0:0ed2a7c7190c 387 #if PPPOE_SUPPORT
GordonSin 0:0ed2a7c7190c 388 if (pppControl[pd].ethif) {
GordonSin 0:0ed2a7c7190c 389 pppoe_disconnect(pppControl[pd].pppoe_sc);
GordonSin 0:0ed2a7c7190c 390 } else
GordonSin 0:0ed2a7c7190c 391 #endif /* PPPOE_SUPPORT */
GordonSin 0:0ed2a7c7190c 392 {
GordonSin 0:0ed2a7c7190c 393 #if PPPOS_SUPPORT
GordonSin 0:0ed2a7c7190c 394 pppRecvWakeup(pd);
GordonSin 0:0ed2a7c7190c 395 #endif /* PPPOS_SUPPORT */
GordonSin 0:0ed2a7c7190c 396 }
GordonSin 0:0ed2a7c7190c 397 }
GordonSin 0:0ed2a7c7190c 398
GordonSin 0:0ed2a7c7190c 399 /** Initiate LCP open request */
GordonSin 0:0ed2a7c7190c 400 static void
GordonSin 0:0ed2a7c7190c 401 pppStart(int pd)
GordonSin 0:0ed2a7c7190c 402 {
GordonSin 0:0ed2a7c7190c 403 PPPDEBUG(LOG_DEBUG, ("pppStart: unit %d\n", pd));
GordonSin 0:0ed2a7c7190c 404 lcp_lowerup(pd);
GordonSin 0:0ed2a7c7190c 405 lcp_open(pd); /* Start protocol */
GordonSin 0:0ed2a7c7190c 406 PPPDEBUG(LOG_DEBUG, ("pppStart: finished\n"));
GordonSin 0:0ed2a7c7190c 407 }
GordonSin 0:0ed2a7c7190c 408
GordonSin 0:0ed2a7c7190c 409 /** LCP close request */
GordonSin 0:0ed2a7c7190c 410 static void
GordonSin 0:0ed2a7c7190c 411 pppStop(int pd)
GordonSin 0:0ed2a7c7190c 412 {
GordonSin 0:0ed2a7c7190c 413 PPPDEBUG(LOG_DEBUG, ("pppStop: unit %d\n", pd));
GordonSin 0:0ed2a7c7190c 414 lcp_close(pd, "User request");
GordonSin 0:0ed2a7c7190c 415 }
GordonSin 0:0ed2a7c7190c 416
GordonSin 0:0ed2a7c7190c 417 /** Called when carrier/link is lost */
GordonSin 0:0ed2a7c7190c 418 static void
GordonSin 0:0ed2a7c7190c 419 pppHup(int pd)
GordonSin 0:0ed2a7c7190c 420 {
GordonSin 0:0ed2a7c7190c 421 PPPDEBUG(LOG_DEBUG, ("pppHupCB: unit %d\n", pd));
GordonSin 0:0ed2a7c7190c 422 lcp_lowerdown(pd);
GordonSin 0:0ed2a7c7190c 423 link_terminated(pd);
GordonSin 0:0ed2a7c7190c 424 }
GordonSin 0:0ed2a7c7190c 425
GordonSin 0:0ed2a7c7190c 426 /***********************************/
GordonSin 0:0ed2a7c7190c 427 /*** PUBLIC FUNCTION DEFINITIONS ***/
GordonSin 0:0ed2a7c7190c 428 /***********************************/
GordonSin 0:0ed2a7c7190c 429 /* Initialize the PPP subsystem. */
GordonSin 0:0ed2a7c7190c 430
GordonSin 0:0ed2a7c7190c 431 struct ppp_settings ppp_settings;
GordonSin 0:0ed2a7c7190c 432
GordonSin 0:0ed2a7c7190c 433 void
GordonSin 0:0ed2a7c7190c 434 pppInit(void)
GordonSin 0:0ed2a7c7190c 435 {
GordonSin 0:0ed2a7c7190c 436 struct protent *protp;
GordonSin 0:0ed2a7c7190c 437 int i, j;
GordonSin 0:0ed2a7c7190c 438
GordonSin 0:0ed2a7c7190c 439 memset(&ppp_settings, 0, sizeof(ppp_settings));
GordonSin 0:0ed2a7c7190c 440 ppp_settings.usepeerdns = 1;
GordonSin 0:0ed2a7c7190c 441 pppSetAuth(PPPAUTHTYPE_NONE, NULL, NULL);
GordonSin 0:0ed2a7c7190c 442
GordonSin 0:0ed2a7c7190c 443 magicInit();
GordonSin 0:0ed2a7c7190c 444
GordonSin 0:0ed2a7c7190c 445 subnetMask = PP_HTONL(0xffffff00UL);
GordonSin 0:0ed2a7c7190c 446
GordonSin 0:0ed2a7c7190c 447 for (i = 0; i < NUM_PPP; i++) {
GordonSin 0:0ed2a7c7190c 448 /* Initialize each protocol to the standard option set. */
GordonSin 0:0ed2a7c7190c 449 for (j = 0; (protp = ppp_protocols[j]) != NULL; ++j) {
GordonSin 0:0ed2a7c7190c 450 (*protp->init)(i);
GordonSin 0:0ed2a7c7190c 451 }
GordonSin 0:0ed2a7c7190c 452 }
GordonSin 0:0ed2a7c7190c 453
GordonSin 0:0ed2a7c7190c 454 sys_mbox_new(&pppMbox, 1);
GordonSin 0:0ed2a7c7190c 455 sys_thread_new(PPP_THREAD_NAME, pppInputThread, (void*)NULL, PPP_THREAD_STACKSIZE, PPP_THREAD_PRIO); //Create PPP thread here
GordonSin 0:0ed2a7c7190c 456 }
GordonSin 0:0ed2a7c7190c 457
GordonSin 0:0ed2a7c7190c 458 void
GordonSin 0:0ed2a7c7190c 459 pppSetAuth(enum pppAuthType authType, const char *user, const char *passwd)
GordonSin 0:0ed2a7c7190c 460 {
GordonSin 0:0ed2a7c7190c 461 switch(authType) {
GordonSin 0:0ed2a7c7190c 462 case PPPAUTHTYPE_NONE:
GordonSin 0:0ed2a7c7190c 463 default:
GordonSin 0:0ed2a7c7190c 464 #ifdef LWIP_PPP_STRICT_PAP_REJECT
GordonSin 0:0ed2a7c7190c 465 ppp_settings.refuse_pap = 1;
GordonSin 0:0ed2a7c7190c 466 #else /* LWIP_PPP_STRICT_PAP_REJECT */
GordonSin 0:0ed2a7c7190c 467 /* some providers request pap and accept an empty login/pw */
GordonSin 0:0ed2a7c7190c 468 ppp_settings.refuse_pap = 0;
GordonSin 0:0ed2a7c7190c 469 #endif /* LWIP_PPP_STRICT_PAP_REJECT */
GordonSin 0:0ed2a7c7190c 470 ppp_settings.refuse_chap = 1;
GordonSin 0:0ed2a7c7190c 471 break;
GordonSin 0:0ed2a7c7190c 472
GordonSin 0:0ed2a7c7190c 473 case PPPAUTHTYPE_ANY:
GordonSin 0:0ed2a7c7190c 474 /* Warning: Using PPPAUTHTYPE_ANY might have security consequences.
GordonSin 0:0ed2a7c7190c 475 * RFC 1994 says:
GordonSin 0:0ed2a7c7190c 476 *
GordonSin 0:0ed2a7c7190c 477 * In practice, within or associated with each PPP server, there is a
GordonSin 0:0ed2a7c7190c 478 * database which associates "user" names with authentication
GordonSin 0:0ed2a7c7190c 479 * information ("secrets"). It is not anticipated that a particular
GordonSin 0:0ed2a7c7190c 480 * named user would be authenticated by multiple methods. This would
GordonSin 0:0ed2a7c7190c 481 * make the user vulnerable to attacks which negotiate the least secure
GordonSin 0:0ed2a7c7190c 482 * method from among a set (such as PAP rather than CHAP). If the same
GordonSin 0:0ed2a7c7190c 483 * secret was used, PAP would reveal the secret to be used later with
GordonSin 0:0ed2a7c7190c 484 * CHAP.
GordonSin 0:0ed2a7c7190c 485 *
GordonSin 0:0ed2a7c7190c 486 * Instead, for each user name there should be an indication of exactly
GordonSin 0:0ed2a7c7190c 487 * one method used to authenticate that user name. If a user needs to
GordonSin 0:0ed2a7c7190c 488 * make use of different authentication methods under different
GordonSin 0:0ed2a7c7190c 489 * circumstances, then distinct user names SHOULD be employed, each of
GordonSin 0:0ed2a7c7190c 490 * which identifies exactly one authentication method.
GordonSin 0:0ed2a7c7190c 491 *
GordonSin 0:0ed2a7c7190c 492 */
GordonSin 0:0ed2a7c7190c 493 ppp_settings.refuse_pap = 0;
GordonSin 0:0ed2a7c7190c 494 ppp_settings.refuse_chap = 0;
GordonSin 0:0ed2a7c7190c 495 break;
GordonSin 0:0ed2a7c7190c 496
GordonSin 0:0ed2a7c7190c 497 case PPPAUTHTYPE_PAP:
GordonSin 0:0ed2a7c7190c 498 ppp_settings.refuse_pap = 0;
GordonSin 0:0ed2a7c7190c 499 ppp_settings.refuse_chap = 1;
GordonSin 0:0ed2a7c7190c 500 break;
GordonSin 0:0ed2a7c7190c 501
GordonSin 0:0ed2a7c7190c 502 case PPPAUTHTYPE_CHAP:
GordonSin 0:0ed2a7c7190c 503 ppp_settings.refuse_pap = 1;
GordonSin 0:0ed2a7c7190c 504 ppp_settings.refuse_chap = 0;
GordonSin 0:0ed2a7c7190c 505 break;
GordonSin 0:0ed2a7c7190c 506 }
GordonSin 0:0ed2a7c7190c 507
GordonSin 0:0ed2a7c7190c 508 if(user) {
GordonSin 0:0ed2a7c7190c 509 strncpy(ppp_settings.user, user, sizeof(ppp_settings.user)-1);
GordonSin 0:0ed2a7c7190c 510 ppp_settings.user[sizeof(ppp_settings.user)-1] = '\0';
GordonSin 0:0ed2a7c7190c 511 } else {
GordonSin 0:0ed2a7c7190c 512 ppp_settings.user[0] = '\0';
GordonSin 0:0ed2a7c7190c 513 }
GordonSin 0:0ed2a7c7190c 514
GordonSin 0:0ed2a7c7190c 515 if(passwd) {
GordonSin 0:0ed2a7c7190c 516 strncpy(ppp_settings.passwd, passwd, sizeof(ppp_settings.passwd)-1);
GordonSin 0:0ed2a7c7190c 517 ppp_settings.passwd[sizeof(ppp_settings.passwd)-1] = '\0';
GordonSin 0:0ed2a7c7190c 518 } else {
GordonSin 0:0ed2a7c7190c 519 ppp_settings.passwd[0] = '\0';
GordonSin 0:0ed2a7c7190c 520 }
GordonSin 0:0ed2a7c7190c 521 }
GordonSin 0:0ed2a7c7190c 522
GordonSin 0:0ed2a7c7190c 523 #if PPPOS_SUPPORT
GordonSin 0:0ed2a7c7190c 524 /** Open a new PPP connection using the given I/O device.
GordonSin 0:0ed2a7c7190c 525 * This initializes the PPP control block but does not
GordonSin 0:0ed2a7c7190c 526 * attempt to negotiate the LCP session. If this port
GordonSin 0:0ed2a7c7190c 527 * connects to a modem, the modem connection must be
GordonSin 0:0ed2a7c7190c 528 * established before calling this.
GordonSin 0:0ed2a7c7190c 529 * Return a new PPP connection descriptor on success or
GordonSin 0:0ed2a7c7190c 530 * an error code (negative) on failure.
GordonSin 0:0ed2a7c7190c 531 *
GordonSin 0:0ed2a7c7190c 532 * pppOpen() is directly defined to this function.
GordonSin 0:0ed2a7c7190c 533 */
GordonSin 0:0ed2a7c7190c 534 int
GordonSin 0:0ed2a7c7190c 535 pppOverSerialOpen(sio_fd_t fd, void (*linkStatusCB)(void *ctx, int errCode, void *arg), void *linkStatusCtx)
GordonSin 0:0ed2a7c7190c 536 {
GordonSin 0:0ed2a7c7190c 537 PPPControl *pc;
GordonSin 0:0ed2a7c7190c 538 int pd;
GordonSin 0:0ed2a7c7190c 539
GordonSin 0:0ed2a7c7190c 540 if (linkStatusCB == NULL) {
GordonSin 0:0ed2a7c7190c 541 /* PPP is single-threaded: without a callback,
GordonSin 0:0ed2a7c7190c 542 * there is no way to know when the link is up. */
GordonSin 0:0ed2a7c7190c 543 return PPPERR_PARAM;
GordonSin 0:0ed2a7c7190c 544 }
GordonSin 0:0ed2a7c7190c 545
GordonSin 0:0ed2a7c7190c 546 /* Find a free PPP session descriptor. */
GordonSin 0:0ed2a7c7190c 547 for (pd = 0; pd < NUM_PPP && pppControl[pd].openFlag != 0; pd++);
GordonSin 0:0ed2a7c7190c 548
GordonSin 0:0ed2a7c7190c 549 if (pd >= NUM_PPP) {
GordonSin 0:0ed2a7c7190c 550 pd = PPPERR_OPEN;
GordonSin 0:0ed2a7c7190c 551 } else {
GordonSin 0:0ed2a7c7190c 552 pc = &pppControl[pd];
GordonSin 0:0ed2a7c7190c 553 /* @todo: is this correct or do I overwrite something? */
GordonSin 0:0ed2a7c7190c 554 memset(pc, 0, sizeof(PPPControl));
GordonSin 0:0ed2a7c7190c 555 pc->rx.pd = pd;
GordonSin 0:0ed2a7c7190c 556 pc->rx.fd = fd;
GordonSin 0:0ed2a7c7190c 557
GordonSin 0:0ed2a7c7190c 558 pc->openFlag = 1;
GordonSin 0:0ed2a7c7190c 559 pc->fd = fd;
GordonSin 0:0ed2a7c7190c 560
GordonSin 0:0ed2a7c7190c 561 #if VJ_SUPPORT
GordonSin 0:0ed2a7c7190c 562 vj_compress_init(&pc->vjComp);
GordonSin 0:0ed2a7c7190c 563 #endif /* VJ_SUPPORT */
GordonSin 0:0ed2a7c7190c 564
GordonSin 0:0ed2a7c7190c 565 /*
GordonSin 0:0ed2a7c7190c 566 * Default the in and out accm so that escape and flag characters
GordonSin 0:0ed2a7c7190c 567 * are always escaped.
GordonSin 0:0ed2a7c7190c 568 */
GordonSin 0:0ed2a7c7190c 569 pc->rx.inACCM[15] = 0x60; /* no need to protect since RX is not running */
GordonSin 0:0ed2a7c7190c 570 pc->outACCM[15] = 0x60;
GordonSin 0:0ed2a7c7190c 571
GordonSin 0:0ed2a7c7190c 572 pc->linkStatusCB = linkStatusCB;
GordonSin 0:0ed2a7c7190c 573 pc->linkStatusCtx = linkStatusCtx;
GordonSin 0:0ed2a7c7190c 574
GordonSin 0:0ed2a7c7190c 575 /*
GordonSin 0:0ed2a7c7190c 576 * Start the connection and handle incoming events (packet or timeout).
GordonSin 0:0ed2a7c7190c 577 */
GordonSin 0:0ed2a7c7190c 578 PPPDEBUG(LOG_INFO, ("pppOverSerialOpen: unit %d: Connecting\n", pd));
GordonSin 0:0ed2a7c7190c 579 pppStart(pd);
GordonSin 0:0ed2a7c7190c 580 #if PPP_INPROC_OWNTHREAD
GordonSin 0:0ed2a7c7190c 581 sys_mbox_post(&pppMbox, (void*)&pc->rx);
GordonSin 0:0ed2a7c7190c 582 #endif
GordonSin 0:0ed2a7c7190c 583 }
GordonSin 0:0ed2a7c7190c 584
GordonSin 0:0ed2a7c7190c 585 return pd;
GordonSin 0:0ed2a7c7190c 586 }
GordonSin 0:0ed2a7c7190c 587 #endif /* PPPOS_SUPPORT */
GordonSin 0:0ed2a7c7190c 588
GordonSin 0:0ed2a7c7190c 589 #if PPPOE_SUPPORT
GordonSin 0:0ed2a7c7190c 590 static void pppOverEthernetLinkStatusCB(int pd, int up);
GordonSin 0:0ed2a7c7190c 591
GordonSin 0:0ed2a7c7190c 592 void
GordonSin 0:0ed2a7c7190c 593 pppOverEthernetClose(int pd)
GordonSin 0:0ed2a7c7190c 594 {
GordonSin 0:0ed2a7c7190c 595 PPPControl* pc = &pppControl[pd];
GordonSin 0:0ed2a7c7190c 596
GordonSin 0:0ed2a7c7190c 597 /* *TJL* There's no lcp_deinit */
GordonSin 0:0ed2a7c7190c 598 lcp_close(pd, NULL);
GordonSin 0:0ed2a7c7190c 599
GordonSin 0:0ed2a7c7190c 600 pppoe_destroy(&pc->netif);
GordonSin 0:0ed2a7c7190c 601 }
GordonSin 0:0ed2a7c7190c 602
GordonSin 0:0ed2a7c7190c 603 int pppOverEthernetOpen(struct netif *ethif, const char *service_name, const char *concentrator_name, void (*linkStatusCB)(void *ctx, int errCode, void *arg), void *linkStatusCtx)
GordonSin 0:0ed2a7c7190c 604 {
GordonSin 0:0ed2a7c7190c 605 PPPControl *pc;
GordonSin 0:0ed2a7c7190c 606 int pd;
GordonSin 0:0ed2a7c7190c 607
GordonSin 0:0ed2a7c7190c 608 LWIP_UNUSED_ARG(service_name);
GordonSin 0:0ed2a7c7190c 609 LWIP_UNUSED_ARG(concentrator_name);
GordonSin 0:0ed2a7c7190c 610
GordonSin 0:0ed2a7c7190c 611 if (linkStatusCB == NULL) {
GordonSin 0:0ed2a7c7190c 612 /* PPP is single-threaded: without a callback,
GordonSin 0:0ed2a7c7190c 613 * there is no way to know when the link is up. */
GordonSin 0:0ed2a7c7190c 614 return PPPERR_PARAM;
GordonSin 0:0ed2a7c7190c 615 }
GordonSin 0:0ed2a7c7190c 616
GordonSin 0:0ed2a7c7190c 617 /* Find a free PPP session descriptor. Critical region? */
GordonSin 0:0ed2a7c7190c 618 for (pd = 0; pd < NUM_PPP && pppControl[pd].openFlag != 0; pd++);
GordonSin 0:0ed2a7c7190c 619 if (pd >= NUM_PPP) {
GordonSin 0:0ed2a7c7190c 620 pd = PPPERR_OPEN;
GordonSin 0:0ed2a7c7190c 621 } else {
GordonSin 0:0ed2a7c7190c 622 pc = &pppControl[pd];
GordonSin 0:0ed2a7c7190c 623 memset(pc, 0, sizeof(PPPControl));
GordonSin 0:0ed2a7c7190c 624 pc->openFlag = 1;
GordonSin 0:0ed2a7c7190c 625 pc->ethif = ethif;
GordonSin 0:0ed2a7c7190c 626
GordonSin 0:0ed2a7c7190c 627 pc->linkStatusCB = linkStatusCB;
GordonSin 0:0ed2a7c7190c 628 pc->linkStatusCtx = linkStatusCtx;
GordonSin 0:0ed2a7c7190c 629
GordonSin 0:0ed2a7c7190c 630 lcp_wantoptions[pd].mru = PPPOE_MAXMTU;
GordonSin 0:0ed2a7c7190c 631 lcp_wantoptions[pd].neg_asyncmap = 0;
GordonSin 0:0ed2a7c7190c 632 lcp_wantoptions[pd].neg_pcompression = 0;
GordonSin 0:0ed2a7c7190c 633 lcp_wantoptions[pd].neg_accompression = 0;
GordonSin 0:0ed2a7c7190c 634
GordonSin 0:0ed2a7c7190c 635 lcp_allowoptions[pd].mru = PPPOE_MAXMTU;
GordonSin 0:0ed2a7c7190c 636 lcp_allowoptions[pd].neg_asyncmap = 0;
GordonSin 0:0ed2a7c7190c 637 lcp_allowoptions[pd].neg_pcompression = 0;
GordonSin 0:0ed2a7c7190c 638 lcp_allowoptions[pd].neg_accompression = 0;
GordonSin 0:0ed2a7c7190c 639
GordonSin 0:0ed2a7c7190c 640 if(pppoe_create(ethif, pd, pppOverEthernetLinkStatusCB, &pc->pppoe_sc) != ERR_OK) {
GordonSin 0:0ed2a7c7190c 641 pc->openFlag = 0;
GordonSin 0:0ed2a7c7190c 642 return PPPERR_OPEN;
GordonSin 0:0ed2a7c7190c 643 }
GordonSin 0:0ed2a7c7190c 644
GordonSin 0:0ed2a7c7190c 645 pppoe_connect(pc->pppoe_sc);
GordonSin 0:0ed2a7c7190c 646 }
GordonSin 0:0ed2a7c7190c 647
GordonSin 0:0ed2a7c7190c 648 return pd;
GordonSin 0:0ed2a7c7190c 649 }
GordonSin 0:0ed2a7c7190c 650 #endif /* PPPOE_SUPPORT */
GordonSin 0:0ed2a7c7190c 651
GordonSin 0:0ed2a7c7190c 652
GordonSin 0:0ed2a7c7190c 653 /* Close a PPP connection and release the descriptor.
GordonSin 0:0ed2a7c7190c 654 * Any outstanding packets in the queues are dropped.
GordonSin 0:0ed2a7c7190c 655 * Return 0 on success, an error code on failure. */
GordonSin 0:0ed2a7c7190c 656 int
GordonSin 0:0ed2a7c7190c 657 pppClose(int pd)
GordonSin 0:0ed2a7c7190c 658 {
GordonSin 0:0ed2a7c7190c 659 PPPControl *pc = &pppControl[pd];
GordonSin 0:0ed2a7c7190c 660 int st = 0;
GordonSin 0:0ed2a7c7190c 661
GordonSin 0:0ed2a7c7190c 662 PPPDEBUG(LOG_DEBUG, ("pppClose() called\n"));
GordonSin 0:0ed2a7c7190c 663
GordonSin 0:0ed2a7c7190c 664 /* Disconnect */
GordonSin 0:0ed2a7c7190c 665 #if PPPOE_SUPPORT
GordonSin 0:0ed2a7c7190c 666 if(pc->ethif) {
GordonSin 0:0ed2a7c7190c 667 PPPDEBUG(LOG_DEBUG, ("pppClose: unit %d kill_link -> pppStop\n", pd));
GordonSin 0:0ed2a7c7190c 668 pc->errCode = PPPERR_USER;
GordonSin 0:0ed2a7c7190c 669 /* This will leave us at PHASE_DEAD. */
GordonSin 0:0ed2a7c7190c 670 pppStop(pd);
GordonSin 0:0ed2a7c7190c 671 } else
GordonSin 0:0ed2a7c7190c 672 #endif /* PPPOE_SUPPORT */
GordonSin 0:0ed2a7c7190c 673 {
GordonSin 0:0ed2a7c7190c 674 #if PPPOS_SUPPORT
GordonSin 0:0ed2a7c7190c 675 PPPDEBUG(LOG_DEBUG, ("pppClose: unit %d kill_link -> pppStop\n", pd));
GordonSin 0:0ed2a7c7190c 676 pc->errCode = PPPERR_USER;
GordonSin 0:0ed2a7c7190c 677 /* This will leave us at PHASE_DEAD. */
GordonSin 0:0ed2a7c7190c 678 pppStop(pd);
GordonSin 0:0ed2a7c7190c 679 pppRecvWakeup(pd);
GordonSin 0:0ed2a7c7190c 680 #endif /* PPPOS_SUPPORT */
GordonSin 0:0ed2a7c7190c 681 }
GordonSin 0:0ed2a7c7190c 682
GordonSin 0:0ed2a7c7190c 683 return st;
GordonSin 0:0ed2a7c7190c 684 }
GordonSin 0:0ed2a7c7190c 685
GordonSin 0:0ed2a7c7190c 686 /* This function is called when carrier is lost on the PPP channel. */
GordonSin 0:0ed2a7c7190c 687 void
GordonSin 0:0ed2a7c7190c 688 pppSigHUP(int pd)
GordonSin 0:0ed2a7c7190c 689 {
GordonSin 0:0ed2a7c7190c 690 PPPDEBUG(LOG_DEBUG, ("pppSigHUP: unit %d sig_hup -> pppHupCB\n", pd));
GordonSin 0:0ed2a7c7190c 691 pppHup(pd);
GordonSin 0:0ed2a7c7190c 692 }
GordonSin 0:0ed2a7c7190c 693
GordonSin 0:0ed2a7c7190c 694 #if PPPOS_SUPPORT
GordonSin 0:0ed2a7c7190c 695 static void
GordonSin 0:0ed2a7c7190c 696 nPut(PPPControl *pc, struct pbuf *nb)
GordonSin 0:0ed2a7c7190c 697 {
GordonSin 0:0ed2a7c7190c 698 struct pbuf *b;
GordonSin 0:0ed2a7c7190c 699 int c;
GordonSin 0:0ed2a7c7190c 700
GordonSin 0:0ed2a7c7190c 701 for(b = nb; b != NULL; b = b->next) {
GordonSin 0:0ed2a7c7190c 702 if((c = sio_write(pc->fd, b->payload, b->len)) != b->len) {
GordonSin 0:0ed2a7c7190c 703 PPPDEBUG(LOG_WARNING,
GordonSin 0:0ed2a7c7190c 704 ("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));
GordonSin 0:0ed2a7c7190c 705 LINK_STATS_INC(link.err);
GordonSin 0:0ed2a7c7190c 706 pc->lastXMit = 0; /* prepend PPP_FLAG to next packet */
GordonSin 0:0ed2a7c7190c 707 snmp_inc_ifoutdiscards(&pc->netif);
GordonSin 0:0ed2a7c7190c 708 pbuf_free(nb);
GordonSin 0:0ed2a7c7190c 709 return;
GordonSin 0:0ed2a7c7190c 710 }
GordonSin 0:0ed2a7c7190c 711 }
GordonSin 0:0ed2a7c7190c 712
GordonSin 0:0ed2a7c7190c 713 snmp_add_ifoutoctets(&pc->netif, nb->tot_len);
GordonSin 0:0ed2a7c7190c 714 snmp_inc_ifoutucastpkts(&pc->netif);
GordonSin 0:0ed2a7c7190c 715 pbuf_free(nb);
GordonSin 0:0ed2a7c7190c 716 LINK_STATS_INC(link.xmit);
GordonSin 0:0ed2a7c7190c 717 }
GordonSin 0:0ed2a7c7190c 718
GordonSin 0:0ed2a7c7190c 719 /*
GordonSin 0:0ed2a7c7190c 720 * pppAppend - append given character to end of given pbuf. If outACCM
GordonSin 0:0ed2a7c7190c 721 * is not NULL and the character needs to be escaped, do so.
GordonSin 0:0ed2a7c7190c 722 * If pbuf is full, append another.
GordonSin 0:0ed2a7c7190c 723 * Return the current pbuf.
GordonSin 0:0ed2a7c7190c 724 */
GordonSin 0:0ed2a7c7190c 725 static struct pbuf *
GordonSin 0:0ed2a7c7190c 726 pppAppend(u_char c, struct pbuf *nb, ext_accm *outACCM)
GordonSin 0:0ed2a7c7190c 727 {
GordonSin 0:0ed2a7c7190c 728 struct pbuf *tb = nb;
GordonSin 0:0ed2a7c7190c 729
GordonSin 0:0ed2a7c7190c 730 /* Make sure there is room for the character and an escape code.
GordonSin 0:0ed2a7c7190c 731 * Sure we don't quite fill the buffer if the character doesn't
GordonSin 0:0ed2a7c7190c 732 * get escaped but is one character worth complicating this? */
GordonSin 0:0ed2a7c7190c 733 /* Note: We assume no packet header. */
GordonSin 0:0ed2a7c7190c 734 if (nb && (PBUF_POOL_BUFSIZE - nb->len) < 2) {
GordonSin 0:0ed2a7c7190c 735 tb = pbuf_alloc(PBUF_RAW, 0, PBUF_POOL);
GordonSin 0:0ed2a7c7190c 736 if (tb) {
GordonSin 0:0ed2a7c7190c 737 nb->next = tb;
GordonSin 0:0ed2a7c7190c 738 } else {
GordonSin 0:0ed2a7c7190c 739 LINK_STATS_INC(link.memerr);
GordonSin 0:0ed2a7c7190c 740 }
GordonSin 0:0ed2a7c7190c 741 nb = tb;
GordonSin 0:0ed2a7c7190c 742 }
GordonSin 0:0ed2a7c7190c 743
GordonSin 0:0ed2a7c7190c 744 if (nb) {
GordonSin 0:0ed2a7c7190c 745 if (outACCM && ESCAPE_P(*outACCM, c)) {
GordonSin 0:0ed2a7c7190c 746 *((u_char*)nb->payload + nb->len++) = PPP_ESCAPE;
GordonSin 0:0ed2a7c7190c 747 *((u_char*)nb->payload + nb->len++) = c ^ PPP_TRANS;
GordonSin 0:0ed2a7c7190c 748 } else {
GordonSin 0:0ed2a7c7190c 749 *((u_char*)nb->payload + nb->len++) = c;
GordonSin 0:0ed2a7c7190c 750 }
GordonSin 0:0ed2a7c7190c 751 }
GordonSin 0:0ed2a7c7190c 752
GordonSin 0:0ed2a7c7190c 753 return tb;
GordonSin 0:0ed2a7c7190c 754 }
GordonSin 0:0ed2a7c7190c 755 #endif /* PPPOS_SUPPORT */
GordonSin 0:0ed2a7c7190c 756
GordonSin 0:0ed2a7c7190c 757 #if PPPOE_SUPPORT
GordonSin 0:0ed2a7c7190c 758 static err_t
GordonSin 0:0ed2a7c7190c 759 pppifOutputOverEthernet(int pd, struct pbuf *p)
GordonSin 0:0ed2a7c7190c 760 {
GordonSin 0:0ed2a7c7190c 761 PPPControl *pc = &pppControl[pd];
GordonSin 0:0ed2a7c7190c 762 struct pbuf *pb;
GordonSin 0:0ed2a7c7190c 763 u_short protocol = PPP_IP;
GordonSin 0:0ed2a7c7190c 764 int i=0;
GordonSin 0:0ed2a7c7190c 765 u16_t tot_len;
GordonSin 0:0ed2a7c7190c 766
GordonSin 0:0ed2a7c7190c 767 /* @todo: try to use pbuf_header() here! */
GordonSin 0:0ed2a7c7190c 768 pb = pbuf_alloc(PBUF_LINK, PPPOE_HDRLEN + sizeof(protocol), PBUF_RAM);
GordonSin 0:0ed2a7c7190c 769 if(!pb) {
GordonSin 0:0ed2a7c7190c 770 LINK_STATS_INC(link.memerr);
GordonSin 0:0ed2a7c7190c 771 LINK_STATS_INC(link.proterr);
GordonSin 0:0ed2a7c7190c 772 snmp_inc_ifoutdiscards(&pc->netif);
GordonSin 0:0ed2a7c7190c 773 return ERR_MEM;
GordonSin 0:0ed2a7c7190c 774 }
GordonSin 0:0ed2a7c7190c 775
GordonSin 0:0ed2a7c7190c 776 pbuf_header(pb, -(s16_t)PPPOE_HDRLEN);
GordonSin 0:0ed2a7c7190c 777
GordonSin 0:0ed2a7c7190c 778 pc->lastXMit = sys_jiffies();
GordonSin 0:0ed2a7c7190c 779
GordonSin 0:0ed2a7c7190c 780 if (!pc->pcomp || protocol > 0xFF) {
GordonSin 0:0ed2a7c7190c 781 *((u_char*)pb->payload + i++) = (protocol >> 8) & 0xFF;
GordonSin 0:0ed2a7c7190c 782 }
GordonSin 0:0ed2a7c7190c 783 *((u_char*)pb->payload + i) = protocol & 0xFF;
GordonSin 0:0ed2a7c7190c 784
GordonSin 0:0ed2a7c7190c 785 pbuf_chain(pb, p);
GordonSin 0:0ed2a7c7190c 786 tot_len = pb->tot_len;
GordonSin 0:0ed2a7c7190c 787
GordonSin 0:0ed2a7c7190c 788 if(pppoe_xmit(pc->pppoe_sc, pb) != ERR_OK) {
GordonSin 0:0ed2a7c7190c 789 LINK_STATS_INC(link.err);
GordonSin 0:0ed2a7c7190c 790 snmp_inc_ifoutdiscards(&pc->netif);
GordonSin 0:0ed2a7c7190c 791 return PPPERR_DEVICE;
GordonSin 0:0ed2a7c7190c 792 }
GordonSin 0:0ed2a7c7190c 793
GordonSin 0:0ed2a7c7190c 794 snmp_add_ifoutoctets(&pc->netif, tot_len);
GordonSin 0:0ed2a7c7190c 795 snmp_inc_ifoutucastpkts(&pc->netif);
GordonSin 0:0ed2a7c7190c 796 LINK_STATS_INC(link.xmit);
GordonSin 0:0ed2a7c7190c 797 return ERR_OK;
GordonSin 0:0ed2a7c7190c 798 }
GordonSin 0:0ed2a7c7190c 799 #endif /* PPPOE_SUPPORT */
GordonSin 0:0ed2a7c7190c 800
GordonSin 0:0ed2a7c7190c 801 /* Send a packet on the given connection. */
GordonSin 0:0ed2a7c7190c 802 static err_t
GordonSin 0:0ed2a7c7190c 803 pppifOutput(struct netif *netif, struct pbuf *pb, ip_addr_t *ipaddr)
GordonSin 0:0ed2a7c7190c 804 {
GordonSin 0:0ed2a7c7190c 805 int pd = (int)(size_t)netif->state;
GordonSin 0:0ed2a7c7190c 806 PPPControl *pc = &pppControl[pd];
GordonSin 0:0ed2a7c7190c 807 #if PPPOS_SUPPORT
GordonSin 0:0ed2a7c7190c 808 u_short protocol = PPP_IP;
GordonSin 0:0ed2a7c7190c 809 u_int fcsOut = PPP_INITFCS;
GordonSin 0:0ed2a7c7190c 810 struct pbuf *headMB = NULL, *tailMB = NULL, *p;
GordonSin 0:0ed2a7c7190c 811 u_char c;
GordonSin 0:0ed2a7c7190c 812 #endif /* PPPOS_SUPPORT */
GordonSin 0:0ed2a7c7190c 813
GordonSin 0:0ed2a7c7190c 814 LWIP_UNUSED_ARG(ipaddr);
GordonSin 0:0ed2a7c7190c 815
GordonSin 0:0ed2a7c7190c 816 /* Validate parameters. */
GordonSin 0:0ed2a7c7190c 817 /* We let any protocol value go through - it can't hurt us
GordonSin 0:0ed2a7c7190c 818 * and the peer will just drop it if it's not accepting it. */
GordonSin 0:0ed2a7c7190c 819 if (pd < 0 || pd >= NUM_PPP || !pc->openFlag || !pb) {
GordonSin 0:0ed2a7c7190c 820 PPPDEBUG(LOG_WARNING, ("pppifOutput[%d]: bad parms prot=%d pb=%p\n",
GordonSin 0:0ed2a7c7190c 821 pd, PPP_IP, pb));
GordonSin 0:0ed2a7c7190c 822 LINK_STATS_INC(link.opterr);
GordonSin 0:0ed2a7c7190c 823 LINK_STATS_INC(link.drop);
GordonSin 0:0ed2a7c7190c 824 snmp_inc_ifoutdiscards(netif);
GordonSin 0:0ed2a7c7190c 825 return ERR_ARG;
GordonSin 0:0ed2a7c7190c 826 }
GordonSin 0:0ed2a7c7190c 827
GordonSin 0:0ed2a7c7190c 828 /* Check that the link is up. */
GordonSin 0:0ed2a7c7190c 829 if (lcp_phase[pd] == PHASE_DEAD) {
GordonSin 0:0ed2a7c7190c 830 PPPDEBUG(LOG_ERR, ("pppifOutput[%d]: link not up\n", pd));
GordonSin 0:0ed2a7c7190c 831 LINK_STATS_INC(link.rterr);
GordonSin 0:0ed2a7c7190c 832 LINK_STATS_INC(link.drop);
GordonSin 0:0ed2a7c7190c 833 snmp_inc_ifoutdiscards(netif);
GordonSin 0:0ed2a7c7190c 834 return ERR_RTE;
GordonSin 0:0ed2a7c7190c 835 }
GordonSin 0:0ed2a7c7190c 836
GordonSin 0:0ed2a7c7190c 837 #if PPPOE_SUPPORT
GordonSin 0:0ed2a7c7190c 838 if(pc->ethif) {
GordonSin 0:0ed2a7c7190c 839 return pppifOutputOverEthernet(pd, pb);
GordonSin 0:0ed2a7c7190c 840 }
GordonSin 0:0ed2a7c7190c 841 #endif /* PPPOE_SUPPORT */
GordonSin 0:0ed2a7c7190c 842
GordonSin 0:0ed2a7c7190c 843 #if PPPOS_SUPPORT
GordonSin 0:0ed2a7c7190c 844 /* Grab an output buffer. */
GordonSin 0:0ed2a7c7190c 845 headMB = pbuf_alloc(PBUF_RAW, 0, PBUF_POOL);
GordonSin 0:0ed2a7c7190c 846 if (headMB == NULL) {
GordonSin 0:0ed2a7c7190c 847 PPPDEBUG(LOG_WARNING, ("pppifOutput[%d]: first alloc fail\n", pd));
GordonSin 0:0ed2a7c7190c 848 LINK_STATS_INC(link.memerr);
GordonSin 0:0ed2a7c7190c 849 LINK_STATS_INC(link.drop);
GordonSin 0:0ed2a7c7190c 850 snmp_inc_ifoutdiscards(netif);
GordonSin 0:0ed2a7c7190c 851 return ERR_MEM;
GordonSin 0:0ed2a7c7190c 852 }
GordonSin 0:0ed2a7c7190c 853
GordonSin 0:0ed2a7c7190c 854 #if VJ_SUPPORT
GordonSin 0:0ed2a7c7190c 855 /*
GordonSin 0:0ed2a7c7190c 856 * Attempt Van Jacobson header compression if VJ is configured and
GordonSin 0:0ed2a7c7190c 857 * this is an IP packet.
GordonSin 0:0ed2a7c7190c 858 */
GordonSin 0:0ed2a7c7190c 859 if (protocol == PPP_IP && pc->vjEnabled) {
GordonSin 0:0ed2a7c7190c 860 switch (vj_compress_tcp(&pc->vjComp, pb)) {
GordonSin 0:0ed2a7c7190c 861 case TYPE_IP:
GordonSin 0:0ed2a7c7190c 862 /* No change...
GordonSin 0:0ed2a7c7190c 863 protocol = PPP_IP_PROTOCOL; */
GordonSin 0:0ed2a7c7190c 864 break;
GordonSin 0:0ed2a7c7190c 865 case TYPE_COMPRESSED_TCP:
GordonSin 0:0ed2a7c7190c 866 protocol = PPP_VJC_COMP;
GordonSin 0:0ed2a7c7190c 867 break;
GordonSin 0:0ed2a7c7190c 868 case TYPE_UNCOMPRESSED_TCP:
GordonSin 0:0ed2a7c7190c 869 protocol = PPP_VJC_UNCOMP;
GordonSin 0:0ed2a7c7190c 870 break;
GordonSin 0:0ed2a7c7190c 871 default:
GordonSin 0:0ed2a7c7190c 872 PPPDEBUG(LOG_WARNING, ("pppifOutput[%d]: bad IP packet\n", pd));
GordonSin 0:0ed2a7c7190c 873 LINK_STATS_INC(link.proterr);
GordonSin 0:0ed2a7c7190c 874 LINK_STATS_INC(link.drop);
GordonSin 0:0ed2a7c7190c 875 snmp_inc_ifoutdiscards(netif);
GordonSin 0:0ed2a7c7190c 876 pbuf_free(headMB);
GordonSin 0:0ed2a7c7190c 877 return ERR_VAL;
GordonSin 0:0ed2a7c7190c 878 }
GordonSin 0:0ed2a7c7190c 879 }
GordonSin 0:0ed2a7c7190c 880 #endif /* VJ_SUPPORT */
GordonSin 0:0ed2a7c7190c 881
GordonSin 0:0ed2a7c7190c 882 tailMB = headMB;
GordonSin 0:0ed2a7c7190c 883
GordonSin 0:0ed2a7c7190c 884 /* Build the PPP header. */
GordonSin 0:0ed2a7c7190c 885 if ((sys_jiffies() - pc->lastXMit) >= PPP_MAXIDLEFLAG) {
GordonSin 0:0ed2a7c7190c 886 tailMB = pppAppend(PPP_FLAG, tailMB, NULL);
GordonSin 0:0ed2a7c7190c 887 }
GordonSin 0:0ed2a7c7190c 888
GordonSin 0:0ed2a7c7190c 889 pc->lastXMit = sys_jiffies();
GordonSin 0:0ed2a7c7190c 890 if (!pc->accomp) {
GordonSin 0:0ed2a7c7190c 891 fcsOut = PPP_FCS(fcsOut, PPP_ALLSTATIONS);
GordonSin 0:0ed2a7c7190c 892 tailMB = pppAppend(PPP_ALLSTATIONS, tailMB, &pc->outACCM);
GordonSin 0:0ed2a7c7190c 893 fcsOut = PPP_FCS(fcsOut, PPP_UI);
GordonSin 0:0ed2a7c7190c 894 tailMB = pppAppend(PPP_UI, tailMB, &pc->outACCM);
GordonSin 0:0ed2a7c7190c 895 }
GordonSin 0:0ed2a7c7190c 896 if (!pc->pcomp || protocol > 0xFF) {
GordonSin 0:0ed2a7c7190c 897 c = (protocol >> 8) & 0xFF;
GordonSin 0:0ed2a7c7190c 898 fcsOut = PPP_FCS(fcsOut, c);
GordonSin 0:0ed2a7c7190c 899 tailMB = pppAppend(c, tailMB, &pc->outACCM);
GordonSin 0:0ed2a7c7190c 900 }
GordonSin 0:0ed2a7c7190c 901 c = protocol & 0xFF;
GordonSin 0:0ed2a7c7190c 902 fcsOut = PPP_FCS(fcsOut, c);
GordonSin 0:0ed2a7c7190c 903 tailMB = pppAppend(c, tailMB, &pc->outACCM);
GordonSin 0:0ed2a7c7190c 904
GordonSin 0:0ed2a7c7190c 905 /* Load packet. */
GordonSin 0:0ed2a7c7190c 906 for(p = pb; p; p = p->next) {
GordonSin 0:0ed2a7c7190c 907 int n;
GordonSin 0:0ed2a7c7190c 908 u_char *sPtr;
GordonSin 0:0ed2a7c7190c 909
GordonSin 0:0ed2a7c7190c 910 sPtr = (u_char*)p->payload;
GordonSin 0:0ed2a7c7190c 911 n = p->len;
GordonSin 0:0ed2a7c7190c 912 while (n-- > 0) {
GordonSin 0:0ed2a7c7190c 913 c = *sPtr++;
GordonSin 0:0ed2a7c7190c 914
GordonSin 0:0ed2a7c7190c 915 /* Update FCS before checking for special characters. */
GordonSin 0:0ed2a7c7190c 916 fcsOut = PPP_FCS(fcsOut, c);
GordonSin 0:0ed2a7c7190c 917
GordonSin 0:0ed2a7c7190c 918 /* Copy to output buffer escaping special characters. */
GordonSin 0:0ed2a7c7190c 919 tailMB = pppAppend(c, tailMB, &pc->outACCM);
GordonSin 0:0ed2a7c7190c 920 }
GordonSin 0:0ed2a7c7190c 921 }
GordonSin 0:0ed2a7c7190c 922
GordonSin 0:0ed2a7c7190c 923 /* Add FCS and trailing flag. */
GordonSin 0:0ed2a7c7190c 924 c = ~fcsOut & 0xFF;
GordonSin 0:0ed2a7c7190c 925 tailMB = pppAppend(c, tailMB, &pc->outACCM);
GordonSin 0:0ed2a7c7190c 926 c = (~fcsOut >> 8) & 0xFF;
GordonSin 0:0ed2a7c7190c 927 tailMB = pppAppend(c, tailMB, &pc->outACCM);
GordonSin 0:0ed2a7c7190c 928 tailMB = pppAppend(PPP_FLAG, tailMB, NULL);
GordonSin 0:0ed2a7c7190c 929
GordonSin 0:0ed2a7c7190c 930 /* If we failed to complete the packet, throw it away. */
GordonSin 0:0ed2a7c7190c 931 if (!tailMB) {
GordonSin 0:0ed2a7c7190c 932 PPPDEBUG(LOG_WARNING,
GordonSin 0:0ed2a7c7190c 933 ("pppifOutput[%d]: Alloc err - dropping proto=%d\n",
GordonSin 0:0ed2a7c7190c 934 pd, protocol));
GordonSin 0:0ed2a7c7190c 935 pbuf_free(headMB);
GordonSin 0:0ed2a7c7190c 936 LINK_STATS_INC(link.memerr);
GordonSin 0:0ed2a7c7190c 937 LINK_STATS_INC(link.drop);
GordonSin 0:0ed2a7c7190c 938 snmp_inc_ifoutdiscards(netif);
GordonSin 0:0ed2a7c7190c 939 return ERR_MEM;
GordonSin 0:0ed2a7c7190c 940 }
GordonSin 0:0ed2a7c7190c 941
GordonSin 0:0ed2a7c7190c 942 /* Send it. */
GordonSin 0:0ed2a7c7190c 943 PPPDEBUG(LOG_INFO, ("pppifOutput[%d]: proto=0x%"X16_F"\n", pd, protocol));
GordonSin 0:0ed2a7c7190c 944
GordonSin 0:0ed2a7c7190c 945 nPut(pc, headMB);
GordonSin 0:0ed2a7c7190c 946 #endif /* PPPOS_SUPPORT */
GordonSin 0:0ed2a7c7190c 947
GordonSin 0:0ed2a7c7190c 948 return ERR_OK;
GordonSin 0:0ed2a7c7190c 949 }
GordonSin 0:0ed2a7c7190c 950
GordonSin 0:0ed2a7c7190c 951 /* Get and set parameters for the given connection.
GordonSin 0:0ed2a7c7190c 952 * Return 0 on success, an error code on failure. */
GordonSin 0:0ed2a7c7190c 953 int
GordonSin 0:0ed2a7c7190c 954 pppIOCtl(int pd, int cmd, void *arg)
GordonSin 0:0ed2a7c7190c 955 {
GordonSin 0:0ed2a7c7190c 956 PPPControl *pc = &pppControl[pd];
GordonSin 0:0ed2a7c7190c 957 int st = 0;
GordonSin 0:0ed2a7c7190c 958
GordonSin 0:0ed2a7c7190c 959 if (pd < 0 || pd >= NUM_PPP) {
GordonSin 0:0ed2a7c7190c 960 st = PPPERR_PARAM;
GordonSin 0:0ed2a7c7190c 961 } else {
GordonSin 0:0ed2a7c7190c 962 switch(cmd) {
GordonSin 0:0ed2a7c7190c 963 case PPPCTLG_UPSTATUS: /* Get the PPP up status. */
GordonSin 0:0ed2a7c7190c 964 if (arg) {
GordonSin 0:0ed2a7c7190c 965 *(int *)arg = (int)(pc->if_up);
GordonSin 0:0ed2a7c7190c 966 } else {
GordonSin 0:0ed2a7c7190c 967 st = PPPERR_PARAM;
GordonSin 0:0ed2a7c7190c 968 }
GordonSin 0:0ed2a7c7190c 969 break;
GordonSin 0:0ed2a7c7190c 970 case PPPCTLS_ERRCODE: /* Set the PPP error code. */
GordonSin 0:0ed2a7c7190c 971 if (arg) {
GordonSin 0:0ed2a7c7190c 972 pc->errCode = *(int *)arg;
GordonSin 0:0ed2a7c7190c 973 } else {
GordonSin 0:0ed2a7c7190c 974 st = PPPERR_PARAM;
GordonSin 0:0ed2a7c7190c 975 }
GordonSin 0:0ed2a7c7190c 976 break;
GordonSin 0:0ed2a7c7190c 977 case PPPCTLG_ERRCODE: /* Get the PPP error code. */
GordonSin 0:0ed2a7c7190c 978 if (arg) {
GordonSin 0:0ed2a7c7190c 979 *(int *)arg = (int)(pc->errCode);
GordonSin 0:0ed2a7c7190c 980 } else {
GordonSin 0:0ed2a7c7190c 981 st = PPPERR_PARAM;
GordonSin 0:0ed2a7c7190c 982 }
GordonSin 0:0ed2a7c7190c 983 break;
GordonSin 0:0ed2a7c7190c 984 #if PPPOS_SUPPORT
GordonSin 0:0ed2a7c7190c 985 case PPPCTLG_FD: /* Get the fd associated with the ppp */
GordonSin 0:0ed2a7c7190c 986 if (arg) {
GordonSin 0:0ed2a7c7190c 987 *(sio_fd_t *)arg = pc->fd;
GordonSin 0:0ed2a7c7190c 988 } else {
GordonSin 0:0ed2a7c7190c 989 st = PPPERR_PARAM;
GordonSin 0:0ed2a7c7190c 990 }
GordonSin 0:0ed2a7c7190c 991 break;
GordonSin 0:0ed2a7c7190c 992 #endif /* PPPOS_SUPPORT */
GordonSin 0:0ed2a7c7190c 993 default:
GordonSin 0:0ed2a7c7190c 994 st = PPPERR_PARAM;
GordonSin 0:0ed2a7c7190c 995 break;
GordonSin 0:0ed2a7c7190c 996 }
GordonSin 0:0ed2a7c7190c 997 }
GordonSin 0:0ed2a7c7190c 998
GordonSin 0:0ed2a7c7190c 999 return st;
GordonSin 0:0ed2a7c7190c 1000 }
GordonSin 0:0ed2a7c7190c 1001
GordonSin 0:0ed2a7c7190c 1002 /*
GordonSin 0:0ed2a7c7190c 1003 * Return the Maximum Transmission Unit for the given PPP connection.
GordonSin 0:0ed2a7c7190c 1004 */
GordonSin 0:0ed2a7c7190c 1005 u_short
GordonSin 0:0ed2a7c7190c 1006 pppMTU(int pd)
GordonSin 0:0ed2a7c7190c 1007 {
GordonSin 0:0ed2a7c7190c 1008 PPPControl *pc = &pppControl[pd];
GordonSin 0:0ed2a7c7190c 1009 u_short st;
GordonSin 0:0ed2a7c7190c 1010
GordonSin 0:0ed2a7c7190c 1011 /* Validate parameters. */
GordonSin 0:0ed2a7c7190c 1012 if (pd < 0 || pd >= NUM_PPP || !pc->openFlag) {
GordonSin 0:0ed2a7c7190c 1013 st = 0;
GordonSin 0:0ed2a7c7190c 1014 } else {
GordonSin 0:0ed2a7c7190c 1015 st = pc->mtu;
GordonSin 0:0ed2a7c7190c 1016 }
GordonSin 0:0ed2a7c7190c 1017
GordonSin 0:0ed2a7c7190c 1018 return st;
GordonSin 0:0ed2a7c7190c 1019 }
GordonSin 0:0ed2a7c7190c 1020
GordonSin 0:0ed2a7c7190c 1021 #if PPPOE_SUPPORT
GordonSin 0:0ed2a7c7190c 1022 int
GordonSin 0:0ed2a7c7190c 1023 pppWriteOverEthernet(int pd, const u_char *s, int n)
GordonSin 0:0ed2a7c7190c 1024 {
GordonSin 0:0ed2a7c7190c 1025 PPPControl *pc = &pppControl[pd];
GordonSin 0:0ed2a7c7190c 1026 struct pbuf *pb;
GordonSin 0:0ed2a7c7190c 1027
GordonSin 0:0ed2a7c7190c 1028 /* skip address & flags */
GordonSin 0:0ed2a7c7190c 1029 s += 2;
GordonSin 0:0ed2a7c7190c 1030 n -= 2;
GordonSin 0:0ed2a7c7190c 1031
GordonSin 0:0ed2a7c7190c 1032 LWIP_ASSERT("PPPOE_HDRLEN + n <= 0xffff", PPPOE_HDRLEN + n <= 0xffff);
GordonSin 0:0ed2a7c7190c 1033 pb = pbuf_alloc(PBUF_LINK, (u16_t)(PPPOE_HDRLEN + n), PBUF_RAM);
GordonSin 0:0ed2a7c7190c 1034 if(!pb) {
GordonSin 0:0ed2a7c7190c 1035 LINK_STATS_INC(link.memerr);
GordonSin 0:0ed2a7c7190c 1036 LINK_STATS_INC(link.proterr);
GordonSin 0:0ed2a7c7190c 1037 snmp_inc_ifoutdiscards(&pc->netif);
GordonSin 0:0ed2a7c7190c 1038 return PPPERR_ALLOC;
GordonSin 0:0ed2a7c7190c 1039 }
GordonSin 0:0ed2a7c7190c 1040
GordonSin 0:0ed2a7c7190c 1041 pbuf_header(pb, -(s16_t)PPPOE_HDRLEN);
GordonSin 0:0ed2a7c7190c 1042
GordonSin 0:0ed2a7c7190c 1043 pc->lastXMit = sys_jiffies();
GordonSin 0:0ed2a7c7190c 1044
GordonSin 0:0ed2a7c7190c 1045 MEMCPY(pb->payload, s, n);
GordonSin 0:0ed2a7c7190c 1046
GordonSin 0:0ed2a7c7190c 1047 if(pppoe_xmit(pc->pppoe_sc, pb) != ERR_OK) {
GordonSin 0:0ed2a7c7190c 1048 LINK_STATS_INC(link.err);
GordonSin 0:0ed2a7c7190c 1049 snmp_inc_ifoutdiscards(&pc->netif);
GordonSin 0:0ed2a7c7190c 1050 return PPPERR_DEVICE;
GordonSin 0:0ed2a7c7190c 1051 }
GordonSin 0:0ed2a7c7190c 1052
GordonSin 0:0ed2a7c7190c 1053 snmp_add_ifoutoctets(&pc->netif, (u16_t)n);
GordonSin 0:0ed2a7c7190c 1054 snmp_inc_ifoutucastpkts(&pc->netif);
GordonSin 0:0ed2a7c7190c 1055 LINK_STATS_INC(link.xmit);
GordonSin 0:0ed2a7c7190c 1056 return PPPERR_NONE;
GordonSin 0:0ed2a7c7190c 1057 }
GordonSin 0:0ed2a7c7190c 1058 #endif /* PPPOE_SUPPORT */
GordonSin 0:0ed2a7c7190c 1059
GordonSin 0:0ed2a7c7190c 1060 /*
GordonSin 0:0ed2a7c7190c 1061 * Write n characters to a ppp link.
GordonSin 0:0ed2a7c7190c 1062 * RETURN: >= 0 Number of characters written
GordonSin 0:0ed2a7c7190c 1063 * -1 Failed to write to device
GordonSin 0:0ed2a7c7190c 1064 */
GordonSin 0:0ed2a7c7190c 1065 int
GordonSin 0:0ed2a7c7190c 1066 pppWrite(int pd, const u_char *s, int n)
GordonSin 0:0ed2a7c7190c 1067 {
GordonSin 0:0ed2a7c7190c 1068 PPPControl *pc = &pppControl[pd];
GordonSin 0:0ed2a7c7190c 1069 #if PPPOS_SUPPORT
GordonSin 0:0ed2a7c7190c 1070 u_char c;
GordonSin 0:0ed2a7c7190c 1071 u_int fcsOut;
GordonSin 0:0ed2a7c7190c 1072 struct pbuf *headMB, *tailMB;
GordonSin 0:0ed2a7c7190c 1073 #endif /* PPPOS_SUPPORT */
GordonSin 0:0ed2a7c7190c 1074
GordonSin 0:0ed2a7c7190c 1075 #if PPPOE_SUPPORT
GordonSin 0:0ed2a7c7190c 1076 if(pc->ethif) {
GordonSin 0:0ed2a7c7190c 1077 return pppWriteOverEthernet(pd, s, n);
GordonSin 0:0ed2a7c7190c 1078 }
GordonSin 0:0ed2a7c7190c 1079 #endif /* PPPOE_SUPPORT */
GordonSin 0:0ed2a7c7190c 1080
GordonSin 0:0ed2a7c7190c 1081 #if PPPOS_SUPPORT
GordonSin 0:0ed2a7c7190c 1082 headMB = pbuf_alloc(PBUF_RAW, 0, PBUF_POOL);
GordonSin 0:0ed2a7c7190c 1083 if (headMB == NULL) {
GordonSin 0:0ed2a7c7190c 1084 LINK_STATS_INC(link.memerr);
GordonSin 0:0ed2a7c7190c 1085 LINK_STATS_INC(link.proterr);
GordonSin 0:0ed2a7c7190c 1086 snmp_inc_ifoutdiscards(&pc->netif);
GordonSin 0:0ed2a7c7190c 1087 return PPPERR_ALLOC;
GordonSin 0:0ed2a7c7190c 1088 }
GordonSin 0:0ed2a7c7190c 1089
GordonSin 0:0ed2a7c7190c 1090 tailMB = headMB;
GordonSin 0:0ed2a7c7190c 1091
GordonSin 0:0ed2a7c7190c 1092 /* If the link has been idle, we'll send a fresh flag character to
GordonSin 0:0ed2a7c7190c 1093 * flush any noise. */
GordonSin 0:0ed2a7c7190c 1094 if ((sys_jiffies() - pc->lastXMit) >= PPP_MAXIDLEFLAG) {
GordonSin 0:0ed2a7c7190c 1095 tailMB = pppAppend(PPP_FLAG, tailMB, NULL);
GordonSin 0:0ed2a7c7190c 1096 }
GordonSin 0:0ed2a7c7190c 1097 pc->lastXMit = sys_jiffies();
GordonSin 0:0ed2a7c7190c 1098
GordonSin 0:0ed2a7c7190c 1099 fcsOut = PPP_INITFCS;
GordonSin 0:0ed2a7c7190c 1100 /* Load output buffer. */
GordonSin 0:0ed2a7c7190c 1101 while (n-- > 0) {
GordonSin 0:0ed2a7c7190c 1102 c = *s++;
GordonSin 0:0ed2a7c7190c 1103
GordonSin 0:0ed2a7c7190c 1104 /* Update FCS before checking for special characters. */
GordonSin 0:0ed2a7c7190c 1105 fcsOut = PPP_FCS(fcsOut, c);
GordonSin 0:0ed2a7c7190c 1106
GordonSin 0:0ed2a7c7190c 1107 /* Copy to output buffer escaping special characters. */
GordonSin 0:0ed2a7c7190c 1108 tailMB = pppAppend(c, tailMB, &pc->outACCM);
GordonSin 0:0ed2a7c7190c 1109 }
GordonSin 0:0ed2a7c7190c 1110
GordonSin 0:0ed2a7c7190c 1111 /* Add FCS and trailing flag. */
GordonSin 0:0ed2a7c7190c 1112 c = ~fcsOut & 0xFF;
GordonSin 0:0ed2a7c7190c 1113 tailMB = pppAppend(c, tailMB, &pc->outACCM);
GordonSin 0:0ed2a7c7190c 1114 c = (~fcsOut >> 8) & 0xFF;
GordonSin 0:0ed2a7c7190c 1115 tailMB = pppAppend(c, tailMB, &pc->outACCM);
GordonSin 0:0ed2a7c7190c 1116 tailMB = pppAppend(PPP_FLAG, tailMB, NULL);
GordonSin 0:0ed2a7c7190c 1117
GordonSin 0:0ed2a7c7190c 1118 /* If we failed to complete the packet, throw it away.
GordonSin 0:0ed2a7c7190c 1119 * Otherwise send it. */
GordonSin 0:0ed2a7c7190c 1120 if (!tailMB) {
GordonSin 0:0ed2a7c7190c 1121 PPPDEBUG(LOG_WARNING,
GordonSin 0:0ed2a7c7190c 1122 ("pppWrite[%d]: Alloc err - dropping pbuf len=%d\n", pd, headMB->len));
GordonSin 0:0ed2a7c7190c 1123 /*"pppWrite[%d]: Alloc err - dropping %d:%.*H", pd, headMB->len, LWIP_MIN(headMB->len * 2, 40), headMB->payload)); */
GordonSin 0:0ed2a7c7190c 1124 pbuf_free(headMB);
GordonSin 0:0ed2a7c7190c 1125 LINK_STATS_INC(link.memerr);
GordonSin 0:0ed2a7c7190c 1126 LINK_STATS_INC(link.proterr);
GordonSin 0:0ed2a7c7190c 1127 snmp_inc_ifoutdiscards(&pc->netif);
GordonSin 0:0ed2a7c7190c 1128 return PPPERR_ALLOC;
GordonSin 0:0ed2a7c7190c 1129 }
GordonSin 0:0ed2a7c7190c 1130
GordonSin 0:0ed2a7c7190c 1131 PPPDEBUG(LOG_INFO, ("pppWrite[%d]: len=%d\n", pd, headMB->len));
GordonSin 0:0ed2a7c7190c 1132 /* "pppWrite[%d]: %d:%.*H", pd, headMB->len, LWIP_MIN(headMB->len * 2, 40), headMB->payload)); */
GordonSin 0:0ed2a7c7190c 1133 nPut(pc, headMB);
GordonSin 0:0ed2a7c7190c 1134 #endif /* PPPOS_SUPPORT */
GordonSin 0:0ed2a7c7190c 1135
GordonSin 0:0ed2a7c7190c 1136 return PPPERR_NONE;
GordonSin 0:0ed2a7c7190c 1137 }
GordonSin 0:0ed2a7c7190c 1138
GordonSin 0:0ed2a7c7190c 1139 /*
GordonSin 0:0ed2a7c7190c 1140 * ppp_send_config - configure the transmit characteristics of
GordonSin 0:0ed2a7c7190c 1141 * the ppp interface.
GordonSin 0:0ed2a7c7190c 1142 */
GordonSin 0:0ed2a7c7190c 1143 void
GordonSin 0:0ed2a7c7190c 1144 ppp_send_config( int unit, u16_t mtu, u32_t asyncmap, int pcomp, int accomp)
GordonSin 0:0ed2a7c7190c 1145 {
GordonSin 0:0ed2a7c7190c 1146 PPPControl *pc = &pppControl[unit];
GordonSin 0:0ed2a7c7190c 1147 int i;
GordonSin 0:0ed2a7c7190c 1148
GordonSin 0:0ed2a7c7190c 1149 pc->mtu = mtu;
GordonSin 0:0ed2a7c7190c 1150 pc->pcomp = pcomp;
GordonSin 0:0ed2a7c7190c 1151 pc->accomp = accomp;
GordonSin 0:0ed2a7c7190c 1152
GordonSin 0:0ed2a7c7190c 1153 /* Load the ACCM bits for the 32 control codes. */
GordonSin 0:0ed2a7c7190c 1154 for (i = 0; i < 32/8; i++) {
GordonSin 0:0ed2a7c7190c 1155 pc->outACCM[i] = (u_char)((asyncmap >> (8 * i)) & 0xFF);
GordonSin 0:0ed2a7c7190c 1156 }
GordonSin 0:0ed2a7c7190c 1157 PPPDEBUG(LOG_INFO, ("ppp_send_config[%d]: outACCM=%X %X %X %X\n",
GordonSin 0:0ed2a7c7190c 1158 unit,
GordonSin 0:0ed2a7c7190c 1159 pc->outACCM[0], pc->outACCM[1], pc->outACCM[2], pc->outACCM[3]));
GordonSin 0:0ed2a7c7190c 1160 }
GordonSin 0:0ed2a7c7190c 1161
GordonSin 0:0ed2a7c7190c 1162
GordonSin 0:0ed2a7c7190c 1163 /*
GordonSin 0:0ed2a7c7190c 1164 * ppp_set_xaccm - set the extended transmit ACCM for the interface.
GordonSin 0:0ed2a7c7190c 1165 */
GordonSin 0:0ed2a7c7190c 1166 void
GordonSin 0:0ed2a7c7190c 1167 ppp_set_xaccm(int unit, ext_accm *accm)
GordonSin 0:0ed2a7c7190c 1168 {
GordonSin 0:0ed2a7c7190c 1169 SMEMCPY(pppControl[unit].outACCM, accm, sizeof(ext_accm));
GordonSin 0:0ed2a7c7190c 1170 PPPDEBUG(LOG_INFO, ("ppp_set_xaccm[%d]: outACCM=%X %X %X %X\n",
GordonSin 0:0ed2a7c7190c 1171 unit,
GordonSin 0:0ed2a7c7190c 1172 pppControl[unit].outACCM[0],
GordonSin 0:0ed2a7c7190c 1173 pppControl[unit].outACCM[1],
GordonSin 0:0ed2a7c7190c 1174 pppControl[unit].outACCM[2],
GordonSin 0:0ed2a7c7190c 1175 pppControl[unit].outACCM[3]));
GordonSin 0:0ed2a7c7190c 1176 }
GordonSin 0:0ed2a7c7190c 1177
GordonSin 0:0ed2a7c7190c 1178
GordonSin 0:0ed2a7c7190c 1179 /*
GordonSin 0:0ed2a7c7190c 1180 * ppp_recv_config - configure the receive-side characteristics of
GordonSin 0:0ed2a7c7190c 1181 * the ppp interface.
GordonSin 0:0ed2a7c7190c 1182 */
GordonSin 0:0ed2a7c7190c 1183 void
GordonSin 0:0ed2a7c7190c 1184 ppp_recv_config( int unit, int mru, u32_t asyncmap, int pcomp, int accomp)
GordonSin 0:0ed2a7c7190c 1185 {
GordonSin 0:0ed2a7c7190c 1186 PPPControl *pc = &pppControl[unit];
GordonSin 0:0ed2a7c7190c 1187 int i;
GordonSin 0:0ed2a7c7190c 1188 SYS_ARCH_DECL_PROTECT(lev);
GordonSin 0:0ed2a7c7190c 1189
GordonSin 0:0ed2a7c7190c 1190 LWIP_UNUSED_ARG(accomp);
GordonSin 0:0ed2a7c7190c 1191 LWIP_UNUSED_ARG(pcomp);
GordonSin 0:0ed2a7c7190c 1192 LWIP_UNUSED_ARG(mru);
GordonSin 0:0ed2a7c7190c 1193
GordonSin 0:0ed2a7c7190c 1194 /* Load the ACCM bits for the 32 control codes. */
GordonSin 0:0ed2a7c7190c 1195 SYS_ARCH_PROTECT(lev);
GordonSin 0:0ed2a7c7190c 1196 for (i = 0; i < 32 / 8; i++) {
GordonSin 0:0ed2a7c7190c 1197 /* @todo: does this work? ext_accm has been modified from pppd! */
GordonSin 0:0ed2a7c7190c 1198 pc->rx.inACCM[i] = (u_char)(asyncmap >> (i * 8));
GordonSin 0:0ed2a7c7190c 1199 }
GordonSin 0:0ed2a7c7190c 1200 SYS_ARCH_UNPROTECT(lev);
GordonSin 0:0ed2a7c7190c 1201 PPPDEBUG(LOG_INFO, ("ppp_recv_config[%d]: inACCM=%X %X %X %X\n",
GordonSin 0:0ed2a7c7190c 1202 unit,
GordonSin 0:0ed2a7c7190c 1203 pc->rx.inACCM[0], pc->rx.inACCM[1], pc->rx.inACCM[2], pc->rx.inACCM[3]));
GordonSin 0:0ed2a7c7190c 1204 }
GordonSin 0:0ed2a7c7190c 1205
GordonSin 0:0ed2a7c7190c 1206 #if 0
GordonSin 0:0ed2a7c7190c 1207 /*
GordonSin 0:0ed2a7c7190c 1208 * ccp_test - ask kernel whether a given compression method
GordonSin 0:0ed2a7c7190c 1209 * is acceptable for use. Returns 1 if the method and parameters
GordonSin 0:0ed2a7c7190c 1210 * are OK, 0 if the method is known but the parameters are not OK
GordonSin 0:0ed2a7c7190c 1211 * (e.g. code size should be reduced), or -1 if the method is unknown.
GordonSin 0:0ed2a7c7190c 1212 */
GordonSin 0:0ed2a7c7190c 1213 int
GordonSin 0:0ed2a7c7190c 1214 ccp_test( int unit, int opt_len, int for_transmit, u_char *opt_ptr)
GordonSin 0:0ed2a7c7190c 1215 {
GordonSin 0:0ed2a7c7190c 1216 return 0; /* XXX Currently no compression. */
GordonSin 0:0ed2a7c7190c 1217 }
GordonSin 0:0ed2a7c7190c 1218
GordonSin 0:0ed2a7c7190c 1219 /*
GordonSin 0:0ed2a7c7190c 1220 * ccp_flags_set - inform kernel about the current state of CCP.
GordonSin 0:0ed2a7c7190c 1221 */
GordonSin 0:0ed2a7c7190c 1222 void
GordonSin 0:0ed2a7c7190c 1223 ccp_flags_set(int unit, int isopen, int isup)
GordonSin 0:0ed2a7c7190c 1224 {
GordonSin 0:0ed2a7c7190c 1225 /* XXX */
GordonSin 0:0ed2a7c7190c 1226 }
GordonSin 0:0ed2a7c7190c 1227
GordonSin 0:0ed2a7c7190c 1228 /*
GordonSin 0:0ed2a7c7190c 1229 * ccp_fatal_error - returns 1 if decompression was disabled as a
GordonSin 0:0ed2a7c7190c 1230 * result of an error detected after decompression of a packet,
GordonSin 0:0ed2a7c7190c 1231 * 0 otherwise. This is necessary because of patent nonsense.
GordonSin 0:0ed2a7c7190c 1232 */
GordonSin 0:0ed2a7c7190c 1233 int
GordonSin 0:0ed2a7c7190c 1234 ccp_fatal_error(int unit)
GordonSin 0:0ed2a7c7190c 1235 {
GordonSin 0:0ed2a7c7190c 1236 /* XXX */
GordonSin 0:0ed2a7c7190c 1237 return 0;
GordonSin 0:0ed2a7c7190c 1238 }
GordonSin 0:0ed2a7c7190c 1239 #endif
GordonSin 0:0ed2a7c7190c 1240
GordonSin 0:0ed2a7c7190c 1241 /*
GordonSin 0:0ed2a7c7190c 1242 * get_idle_time - return how long the link has been idle.
GordonSin 0:0ed2a7c7190c 1243 */
GordonSin 0:0ed2a7c7190c 1244 int
GordonSin 0:0ed2a7c7190c 1245 get_idle_time(int u, struct ppp_idle *ip)
GordonSin 0:0ed2a7c7190c 1246 {
GordonSin 0:0ed2a7c7190c 1247 /* XXX */
GordonSin 0:0ed2a7c7190c 1248 LWIP_UNUSED_ARG(u);
GordonSin 0:0ed2a7c7190c 1249 LWIP_UNUSED_ARG(ip);
GordonSin 0:0ed2a7c7190c 1250
GordonSin 0:0ed2a7c7190c 1251 return 0;
GordonSin 0:0ed2a7c7190c 1252 }
GordonSin 0:0ed2a7c7190c 1253
GordonSin 0:0ed2a7c7190c 1254
GordonSin 0:0ed2a7c7190c 1255 /*
GordonSin 0:0ed2a7c7190c 1256 * Return user specified netmask, modified by any mask we might determine
GordonSin 0:0ed2a7c7190c 1257 * for address `addr' (in network byte order).
GordonSin 0:0ed2a7c7190c 1258 * Here we scan through the system's list of interfaces, looking for
GordonSin 0:0ed2a7c7190c 1259 * any non-point-to-point interfaces which might appear to be on the same
GordonSin 0:0ed2a7c7190c 1260 * network as `addr'. If we find any, we OR in their netmask to the
GordonSin 0:0ed2a7c7190c 1261 * user-specified netmask.
GordonSin 0:0ed2a7c7190c 1262 */
GordonSin 0:0ed2a7c7190c 1263 u32_t
GordonSin 0:0ed2a7c7190c 1264 GetMask(u32_t addr)
GordonSin 0:0ed2a7c7190c 1265 {
GordonSin 0:0ed2a7c7190c 1266 u32_t mask, nmask;
GordonSin 0:0ed2a7c7190c 1267
GordonSin 0:0ed2a7c7190c 1268 htonl(addr);
GordonSin 0:0ed2a7c7190c 1269 if (IP_CLASSA(addr)) { /* determine network mask for address class */
GordonSin 0:0ed2a7c7190c 1270 nmask = IP_CLASSA_NET;
GordonSin 0:0ed2a7c7190c 1271 } else if (IP_CLASSB(addr)) {
GordonSin 0:0ed2a7c7190c 1272 nmask = IP_CLASSB_NET;
GordonSin 0:0ed2a7c7190c 1273 } else {
GordonSin 0:0ed2a7c7190c 1274 nmask = IP_CLASSC_NET;
GordonSin 0:0ed2a7c7190c 1275 }
GordonSin 0:0ed2a7c7190c 1276
GordonSin 0:0ed2a7c7190c 1277 /* class D nets are disallowed by bad_ip_adrs */
GordonSin 0:0ed2a7c7190c 1278 mask = subnetMask | htonl(nmask);
GordonSin 0:0ed2a7c7190c 1279
GordonSin 0:0ed2a7c7190c 1280 /* XXX
GordonSin 0:0ed2a7c7190c 1281 * Scan through the system's network interfaces.
GordonSin 0:0ed2a7c7190c 1282 * Get each netmask and OR them into our mask.
GordonSin 0:0ed2a7c7190c 1283 */
GordonSin 0:0ed2a7c7190c 1284
GordonSin 0:0ed2a7c7190c 1285 return mask;
GordonSin 0:0ed2a7c7190c 1286 }
GordonSin 0:0ed2a7c7190c 1287
GordonSin 0:0ed2a7c7190c 1288 /*
GordonSin 0:0ed2a7c7190c 1289 * sifvjcomp - config tcp header compression
GordonSin 0:0ed2a7c7190c 1290 */
GordonSin 0:0ed2a7c7190c 1291 int
GordonSin 0:0ed2a7c7190c 1292 sifvjcomp(int pd, int vjcomp, u8_t cidcomp, u8_t maxcid)
GordonSin 0:0ed2a7c7190c 1293 {
GordonSin 0:0ed2a7c7190c 1294 #if PPPOS_SUPPORT && VJ_SUPPORT
GordonSin 0:0ed2a7c7190c 1295 PPPControl *pc = &pppControl[pd];
GordonSin 0:0ed2a7c7190c 1296
GordonSin 0:0ed2a7c7190c 1297 pc->vjEnabled = vjcomp;
GordonSin 0:0ed2a7c7190c 1298 pc->vjComp.compressSlot = cidcomp;
GordonSin 0:0ed2a7c7190c 1299 pc->vjComp.maxSlotIndex = maxcid;
GordonSin 0:0ed2a7c7190c 1300 PPPDEBUG(LOG_INFO, ("sifvjcomp: VJ compress enable=%d slot=%d max slot=%d\n",
GordonSin 0:0ed2a7c7190c 1301 vjcomp, cidcomp, maxcid));
GordonSin 0:0ed2a7c7190c 1302 #else /* PPPOS_SUPPORT && VJ_SUPPORT */
GordonSin 0:0ed2a7c7190c 1303 LWIP_UNUSED_ARG(pd);
GordonSin 0:0ed2a7c7190c 1304 LWIP_UNUSED_ARG(vjcomp);
GordonSin 0:0ed2a7c7190c 1305 LWIP_UNUSED_ARG(cidcomp);
GordonSin 0:0ed2a7c7190c 1306 LWIP_UNUSED_ARG(maxcid);
GordonSin 0:0ed2a7c7190c 1307 #endif /* PPPOS_SUPPORT && VJ_SUPPORT */
GordonSin 0:0ed2a7c7190c 1308
GordonSin 0:0ed2a7c7190c 1309 return 0;
GordonSin 0:0ed2a7c7190c 1310 }
GordonSin 0:0ed2a7c7190c 1311
GordonSin 0:0ed2a7c7190c 1312 /*
GordonSin 0:0ed2a7c7190c 1313 * pppifNetifInit - netif init callback
GordonSin 0:0ed2a7c7190c 1314 */
GordonSin 0:0ed2a7c7190c 1315 static err_t
GordonSin 0:0ed2a7c7190c 1316 pppifNetifInit(struct netif *netif)
GordonSin 0:0ed2a7c7190c 1317 {
GordonSin 0:0ed2a7c7190c 1318 netif->name[0] = 'p';
GordonSin 0:0ed2a7c7190c 1319 netif->name[1] = 'p';
GordonSin 0:0ed2a7c7190c 1320 netif->output = pppifOutput;
GordonSin 0:0ed2a7c7190c 1321 netif->mtu = pppMTU((int)(size_t)netif->state);
GordonSin 0:0ed2a7c7190c 1322 netif->flags = NETIF_FLAG_POINTTOPOINT | NETIF_FLAG_LINK_UP;
GordonSin 0:0ed2a7c7190c 1323 #if LWIP_NETIF_HOSTNAME
GordonSin 0:0ed2a7c7190c 1324 /* @todo: Initialize interface hostname */
GordonSin 0:0ed2a7c7190c 1325 /* netif_set_hostname(netif, "lwip"); */
GordonSin 0:0ed2a7c7190c 1326 #endif /* LWIP_NETIF_HOSTNAME */
GordonSin 0:0ed2a7c7190c 1327 return ERR_OK;
GordonSin 0:0ed2a7c7190c 1328 }
GordonSin 0:0ed2a7c7190c 1329
GordonSin 0:0ed2a7c7190c 1330
GordonSin 0:0ed2a7c7190c 1331 /*
GordonSin 0:0ed2a7c7190c 1332 * sifup - Config the interface up and enable IP packets to pass.
GordonSin 0:0ed2a7c7190c 1333 */
GordonSin 0:0ed2a7c7190c 1334 int
GordonSin 0:0ed2a7c7190c 1335 sifup(int pd)
GordonSin 0:0ed2a7c7190c 1336 {
GordonSin 0:0ed2a7c7190c 1337 PPPControl *pc = &pppControl[pd];
GordonSin 0:0ed2a7c7190c 1338 int st = 1;
GordonSin 0:0ed2a7c7190c 1339
GordonSin 0:0ed2a7c7190c 1340 if (pd < 0 || pd >= NUM_PPP || !pc->openFlag) {
GordonSin 0:0ed2a7c7190c 1341 st = 0;
GordonSin 0:0ed2a7c7190c 1342 PPPDEBUG(LOG_WARNING, ("sifup[%d]: bad parms\n", pd));
GordonSin 0:0ed2a7c7190c 1343 } else {
GordonSin 0:0ed2a7c7190c 1344 netif_remove(&pc->netif);
GordonSin 0:0ed2a7c7190c 1345 if (netif_add(&pc->netif, &pc->addrs.our_ipaddr, &pc->addrs.netmask,
GordonSin 0:0ed2a7c7190c 1346 &pc->addrs.his_ipaddr, (void *)(size_t)pd, pppifNetifInit, ip_input)) {
GordonSin 0:0ed2a7c7190c 1347 netif_set_up(&pc->netif);
GordonSin 0:0ed2a7c7190c 1348 pc->if_up = 1;
GordonSin 0:0ed2a7c7190c 1349 pc->errCode = PPPERR_NONE;
GordonSin 0:0ed2a7c7190c 1350
GordonSin 0:0ed2a7c7190c 1351 PPPDEBUG(LOG_DEBUG, ("sifup: unit %d: linkStatusCB=%p errCode=%d\n", pd, pc->linkStatusCB, pc->errCode));
GordonSin 0:0ed2a7c7190c 1352 if (pc->linkStatusCB) {
GordonSin 0:0ed2a7c7190c 1353 pc->linkStatusCB(pc->linkStatusCtx, pc->errCode, &pc->addrs);
GordonSin 0:0ed2a7c7190c 1354 }
GordonSin 0:0ed2a7c7190c 1355 } else {
GordonSin 0:0ed2a7c7190c 1356 st = 0;
GordonSin 0:0ed2a7c7190c 1357 PPPDEBUG(LOG_ERR, ("sifup[%d]: netif_add failed\n", pd));
GordonSin 0:0ed2a7c7190c 1358 }
GordonSin 0:0ed2a7c7190c 1359 }
GordonSin 0:0ed2a7c7190c 1360
GordonSin 0:0ed2a7c7190c 1361 return st;
GordonSin 0:0ed2a7c7190c 1362 }
GordonSin 0:0ed2a7c7190c 1363
GordonSin 0:0ed2a7c7190c 1364 /*
GordonSin 0:0ed2a7c7190c 1365 * sifnpmode - Set the mode for handling packets for a given NP.
GordonSin 0:0ed2a7c7190c 1366 */
GordonSin 0:0ed2a7c7190c 1367 int
GordonSin 0:0ed2a7c7190c 1368 sifnpmode(int u, int proto, enum NPmode mode)
GordonSin 0:0ed2a7c7190c 1369 {
GordonSin 0:0ed2a7c7190c 1370 LWIP_UNUSED_ARG(u);
GordonSin 0:0ed2a7c7190c 1371 LWIP_UNUSED_ARG(proto);
GordonSin 0:0ed2a7c7190c 1372 LWIP_UNUSED_ARG(mode);
GordonSin 0:0ed2a7c7190c 1373 return 0;
GordonSin 0:0ed2a7c7190c 1374 }
GordonSin 0:0ed2a7c7190c 1375
GordonSin 0:0ed2a7c7190c 1376 /*
GordonSin 0:0ed2a7c7190c 1377 * sifdown - Config the interface down and disable IP.
GordonSin 0:0ed2a7c7190c 1378 */
GordonSin 0:0ed2a7c7190c 1379 int
GordonSin 0:0ed2a7c7190c 1380 sifdown(int pd)
GordonSin 0:0ed2a7c7190c 1381 {
GordonSin 0:0ed2a7c7190c 1382 PPPControl *pc = &pppControl[pd];
GordonSin 0:0ed2a7c7190c 1383 int st = 1;
GordonSin 0:0ed2a7c7190c 1384
GordonSin 0:0ed2a7c7190c 1385 if (pd < 0 || pd >= NUM_PPP || !pc->openFlag) {
GordonSin 0:0ed2a7c7190c 1386 st = 0;
GordonSin 0:0ed2a7c7190c 1387 PPPDEBUG(LOG_WARNING, ("sifdown[%d]: bad parms\n", pd));
GordonSin 0:0ed2a7c7190c 1388 } else {
GordonSin 0:0ed2a7c7190c 1389 pc->if_up = 0;
GordonSin 0:0ed2a7c7190c 1390 /* make sure the netif status callback is called */
GordonSin 0:0ed2a7c7190c 1391 netif_set_down(&pc->netif);
GordonSin 0:0ed2a7c7190c 1392 netif_remove(&pc->netif);
GordonSin 0:0ed2a7c7190c 1393 PPPDEBUG(LOG_DEBUG, ("sifdown: unit %d: linkStatusCB=%p errCode=%d\n", pd, pc->linkStatusCB, pc->errCode));
GordonSin 0:0ed2a7c7190c 1394 if (pc->linkStatusCB) {
GordonSin 0:0ed2a7c7190c 1395 pc->linkStatusCB(pc->linkStatusCtx, PPPERR_CONNECT, NULL);
GordonSin 0:0ed2a7c7190c 1396 }
GordonSin 0:0ed2a7c7190c 1397 }
GordonSin 0:0ed2a7c7190c 1398 return st;
GordonSin 0:0ed2a7c7190c 1399 }
GordonSin 0:0ed2a7c7190c 1400
GordonSin 0:0ed2a7c7190c 1401 /**
GordonSin 0:0ed2a7c7190c 1402 * sifaddr - Config the interface IP addresses and netmask.
GordonSin 0:0ed2a7c7190c 1403 * @param pd Interface unit ???
GordonSin 0:0ed2a7c7190c 1404 * @param o Our IP address ???
GordonSin 0:0ed2a7c7190c 1405 * @param h His IP address ???
GordonSin 0:0ed2a7c7190c 1406 * @param m IP subnet mask ???
GordonSin 0:0ed2a7c7190c 1407 * @param ns1 Primary DNS
GordonSin 0:0ed2a7c7190c 1408 * @param ns2 Secondary DNS
GordonSin 0:0ed2a7c7190c 1409 */
GordonSin 0:0ed2a7c7190c 1410 int
GordonSin 0:0ed2a7c7190c 1411 sifaddr( int pd, u32_t o, u32_t h, u32_t m, u32_t ns1, u32_t ns2)
GordonSin 0:0ed2a7c7190c 1412 {
GordonSin 0:0ed2a7c7190c 1413 PPPControl *pc = &pppControl[pd];
GordonSin 0:0ed2a7c7190c 1414 int st = 1;
GordonSin 0:0ed2a7c7190c 1415
GordonSin 0:0ed2a7c7190c 1416 if (pd < 0 || pd >= NUM_PPP || !pc->openFlag) {
GordonSin 0:0ed2a7c7190c 1417 st = 0;
GordonSin 0:0ed2a7c7190c 1418 PPPDEBUG(LOG_WARNING, ("sifup[%d]: bad parms\n", pd));
GordonSin 0:0ed2a7c7190c 1419 } else {
GordonSin 0:0ed2a7c7190c 1420 SMEMCPY(&pc->addrs.our_ipaddr, &o, sizeof(o));
GordonSin 0:0ed2a7c7190c 1421 SMEMCPY(&pc->addrs.his_ipaddr, &h, sizeof(h));
GordonSin 0:0ed2a7c7190c 1422 SMEMCPY(&pc->addrs.netmask, &m, sizeof(m));
GordonSin 0:0ed2a7c7190c 1423 SMEMCPY(&pc->addrs.dns1, &ns1, sizeof(ns1));
GordonSin 0:0ed2a7c7190c 1424 SMEMCPY(&pc->addrs.dns2, &ns2, sizeof(ns2));
GordonSin 0:0ed2a7c7190c 1425 }
GordonSin 0:0ed2a7c7190c 1426 return st;
GordonSin 0:0ed2a7c7190c 1427 }
GordonSin 0:0ed2a7c7190c 1428
GordonSin 0:0ed2a7c7190c 1429 /**
GordonSin 0:0ed2a7c7190c 1430 * cifaddr - Clear the interface IP addresses, and delete routes
GordonSin 0:0ed2a7c7190c 1431 * through the interface if possible.
GordonSin 0:0ed2a7c7190c 1432 * @param pd Interface unit ???
GordonSin 0:0ed2a7c7190c 1433 * @param o Our IP address ???
GordonSin 0:0ed2a7c7190c 1434 * @param h IP broadcast address ???
GordonSin 0:0ed2a7c7190c 1435 */
GordonSin 0:0ed2a7c7190c 1436 int
GordonSin 0:0ed2a7c7190c 1437 cifaddr( int pd, u32_t o, u32_t h)
GordonSin 0:0ed2a7c7190c 1438 {
GordonSin 0:0ed2a7c7190c 1439 PPPControl *pc = &pppControl[pd];
GordonSin 0:0ed2a7c7190c 1440 int st = 1;
GordonSin 0:0ed2a7c7190c 1441
GordonSin 0:0ed2a7c7190c 1442 LWIP_UNUSED_ARG(o);
GordonSin 0:0ed2a7c7190c 1443 LWIP_UNUSED_ARG(h);
GordonSin 0:0ed2a7c7190c 1444 if (pd < 0 || pd >= NUM_PPP || !pc->openFlag) {
GordonSin 0:0ed2a7c7190c 1445 st = 0;
GordonSin 0:0ed2a7c7190c 1446 PPPDEBUG(LOG_WARNING, ("sifup[%d]: bad parms\n", pd));
GordonSin 0:0ed2a7c7190c 1447 } else {
GordonSin 0:0ed2a7c7190c 1448 IP4_ADDR(&pc->addrs.our_ipaddr, 0,0,0,0);
GordonSin 0:0ed2a7c7190c 1449 IP4_ADDR(&pc->addrs.his_ipaddr, 0,0,0,0);
GordonSin 0:0ed2a7c7190c 1450 IP4_ADDR(&pc->addrs.netmask, 255,255,255,0);
GordonSin 0:0ed2a7c7190c 1451 IP4_ADDR(&pc->addrs.dns1, 0,0,0,0);
GordonSin 0:0ed2a7c7190c 1452 IP4_ADDR(&pc->addrs.dns2, 0,0,0,0);
GordonSin 0:0ed2a7c7190c 1453 }
GordonSin 0:0ed2a7c7190c 1454 return st;
GordonSin 0:0ed2a7c7190c 1455 }
GordonSin 0:0ed2a7c7190c 1456
GordonSin 0:0ed2a7c7190c 1457 /*
GordonSin 0:0ed2a7c7190c 1458 * sifdefaultroute - assign a default route through the address given.
GordonSin 0:0ed2a7c7190c 1459 */
GordonSin 0:0ed2a7c7190c 1460 int
GordonSin 0:0ed2a7c7190c 1461 sifdefaultroute(int pd, u32_t l, u32_t g)
GordonSin 0:0ed2a7c7190c 1462 {
GordonSin 0:0ed2a7c7190c 1463 PPPControl *pc = &pppControl[pd];
GordonSin 0:0ed2a7c7190c 1464 int st = 1;
GordonSin 0:0ed2a7c7190c 1465
GordonSin 0:0ed2a7c7190c 1466 LWIP_UNUSED_ARG(l);
GordonSin 0:0ed2a7c7190c 1467 LWIP_UNUSED_ARG(g);
GordonSin 0:0ed2a7c7190c 1468
GordonSin 0:0ed2a7c7190c 1469 if (pd < 0 || pd >= NUM_PPP || !pc->openFlag) {
GordonSin 0:0ed2a7c7190c 1470 st = 0;
GordonSin 0:0ed2a7c7190c 1471 PPPDEBUG(LOG_WARNING, ("sifup[%d]: bad parms\n", pd));
GordonSin 0:0ed2a7c7190c 1472 } else {
GordonSin 0:0ed2a7c7190c 1473 netif_set_default(&pc->netif);
GordonSin 0:0ed2a7c7190c 1474 }
GordonSin 0:0ed2a7c7190c 1475
GordonSin 0:0ed2a7c7190c 1476 /* TODO: check how PPP handled the netMask, previously not set by ipSetDefault */
GordonSin 0:0ed2a7c7190c 1477
GordonSin 0:0ed2a7c7190c 1478 return st;
GordonSin 0:0ed2a7c7190c 1479 }
GordonSin 0:0ed2a7c7190c 1480
GordonSin 0:0ed2a7c7190c 1481 /*
GordonSin 0:0ed2a7c7190c 1482 * cifdefaultroute - delete a default route through the address given.
GordonSin 0:0ed2a7c7190c 1483 */
GordonSin 0:0ed2a7c7190c 1484 int
GordonSin 0:0ed2a7c7190c 1485 cifdefaultroute(int pd, u32_t l, u32_t g)
GordonSin 0:0ed2a7c7190c 1486 {
GordonSin 0:0ed2a7c7190c 1487 PPPControl *pc = &pppControl[pd];
GordonSin 0:0ed2a7c7190c 1488 int st = 1;
GordonSin 0:0ed2a7c7190c 1489
GordonSin 0:0ed2a7c7190c 1490 LWIP_UNUSED_ARG(l);
GordonSin 0:0ed2a7c7190c 1491 LWIP_UNUSED_ARG(g);
GordonSin 0:0ed2a7c7190c 1492
GordonSin 0:0ed2a7c7190c 1493 if (pd < 0 || pd >= NUM_PPP || !pc->openFlag) {
GordonSin 0:0ed2a7c7190c 1494 st = 0;
GordonSin 0:0ed2a7c7190c 1495 PPPDEBUG(LOG_WARNING, ("sifup[%d]: bad parms\n", pd));
GordonSin 0:0ed2a7c7190c 1496 } else {
GordonSin 0:0ed2a7c7190c 1497 netif_set_default(NULL);
GordonSin 0:0ed2a7c7190c 1498 }
GordonSin 0:0ed2a7c7190c 1499
GordonSin 0:0ed2a7c7190c 1500 return st;
GordonSin 0:0ed2a7c7190c 1501 }
GordonSin 0:0ed2a7c7190c 1502
GordonSin 0:0ed2a7c7190c 1503 /**********************************/
GordonSin 0:0ed2a7c7190c 1504 /*** LOCAL FUNCTION DEFINITIONS ***/
GordonSin 0:0ed2a7c7190c 1505 /**********************************/
GordonSin 0:0ed2a7c7190c 1506
GordonSin 0:0ed2a7c7190c 1507 #if PPPOS_SUPPORT && PPP_INPROC_OWNTHREAD
GordonSin 0:0ed2a7c7190c 1508 /* The main PPP process function. This implements the state machine according
GordonSin 0:0ed2a7c7190c 1509 * to section 4 of RFC 1661: The Point-To-Point Protocol. */
GordonSin 0:0ed2a7c7190c 1510 static void
GordonSin 0:0ed2a7c7190c 1511 pppInputThread(void *arg)
GordonSin 0:0ed2a7c7190c 1512 {
GordonSin 0:0ed2a7c7190c 1513 int count;
GordonSin 0:0ed2a7c7190c 1514 PPPControlRx *pcrx = arg;
GordonSin 0:0ed2a7c7190c 1515
GordonSin 0:0ed2a7c7190c 1516 do
GordonSin 0:0ed2a7c7190c 1517 {
GordonSin 0:0ed2a7c7190c 1518 sys_arch_mbox_fetch(&pppMbox, (void**)&pcrx, 0); //Wait indefinitely
GordonSin 0:0ed2a7c7190c 1519
GordonSin 0:0ed2a7c7190c 1520 while (lcp_phase[pcrx->pd] != PHASE_DEAD) {
GordonSin 0:0ed2a7c7190c 1521 count = sio_read(pcrx->fd, pcrx->rxbuf, PPPOS_RX_BUFSIZE);
GordonSin 0:0ed2a7c7190c 1522 if(count > 0) {
GordonSin 0:0ed2a7c7190c 1523 pppInProc(pcrx, pcrx->rxbuf, count);
GordonSin 0:0ed2a7c7190c 1524 } else {
GordonSin 0:0ed2a7c7190c 1525 /* nothing received, give other tasks a chance to run */
GordonSin 0:0ed2a7c7190c 1526 sys_msleep(1);
GordonSin 0:0ed2a7c7190c 1527 }
GordonSin 0:0ed2a7c7190c 1528 }
GordonSin 0:0ed2a7c7190c 1529 } while(1); //Never terminates
GordonSin 0:0ed2a7c7190c 1530 }
GordonSin 0:0ed2a7c7190c 1531 #endif /* PPPOS_SUPPORT && PPP_INPROC_OWNTHREAD */
GordonSin 0:0ed2a7c7190c 1532
GordonSin 0:0ed2a7c7190c 1533 #if PPPOE_SUPPORT
GordonSin 0:0ed2a7c7190c 1534
GordonSin 0:0ed2a7c7190c 1535 void
GordonSin 0:0ed2a7c7190c 1536 pppOverEthernetInitFailed(int pd)
GordonSin 0:0ed2a7c7190c 1537 {
GordonSin 0:0ed2a7c7190c 1538 PPPControl* pc;
GordonSin 0:0ed2a7c7190c 1539
GordonSin 0:0ed2a7c7190c 1540 pppHup(pd);
GordonSin 0:0ed2a7c7190c 1541 pppStop(pd);
GordonSin 0:0ed2a7c7190c 1542
GordonSin 0:0ed2a7c7190c 1543 pc = &pppControl[pd];
GordonSin 0:0ed2a7c7190c 1544 pppoe_destroy(&pc->netif);
GordonSin 0:0ed2a7c7190c 1545 pc->openFlag = 0;
GordonSin 0:0ed2a7c7190c 1546
GordonSin 0:0ed2a7c7190c 1547 if(pc->linkStatusCB) {
GordonSin 0:0ed2a7c7190c 1548 pc->linkStatusCB(pc->linkStatusCtx, pc->errCode ? pc->errCode : PPPERR_PROTOCOL, NULL);
GordonSin 0:0ed2a7c7190c 1549 }
GordonSin 0:0ed2a7c7190c 1550 }
GordonSin 0:0ed2a7c7190c 1551
GordonSin 0:0ed2a7c7190c 1552 static void
GordonSin 0:0ed2a7c7190c 1553 pppOverEthernetLinkStatusCB(int pd, int up)
GordonSin 0:0ed2a7c7190c 1554 {
GordonSin 0:0ed2a7c7190c 1555 if(up) {
GordonSin 0:0ed2a7c7190c 1556 PPPDEBUG(LOG_INFO, ("pppOverEthernetLinkStatusCB: unit %d: Connecting\n", pd));
GordonSin 0:0ed2a7c7190c 1557 pppStart(pd);
GordonSin 0:0ed2a7c7190c 1558 } else {
GordonSin 0:0ed2a7c7190c 1559 pppOverEthernetInitFailed(pd);
GordonSin 0:0ed2a7c7190c 1560 }
GordonSin 0:0ed2a7c7190c 1561 }
GordonSin 0:0ed2a7c7190c 1562 #endif /* PPPOE_SUPPORT */
GordonSin 0:0ed2a7c7190c 1563
GordonSin 0:0ed2a7c7190c 1564 struct pbuf *
GordonSin 0:0ed2a7c7190c 1565 pppSingleBuf(struct pbuf *p)
GordonSin 0:0ed2a7c7190c 1566 {
GordonSin 0:0ed2a7c7190c 1567 struct pbuf *q, *b;
GordonSin 0:0ed2a7c7190c 1568 u_char *pl;
GordonSin 0:0ed2a7c7190c 1569
GordonSin 0:0ed2a7c7190c 1570 if(p->tot_len == p->len) {
GordonSin 0:0ed2a7c7190c 1571 return p;
GordonSin 0:0ed2a7c7190c 1572 }
GordonSin 0:0ed2a7c7190c 1573
GordonSin 0:0ed2a7c7190c 1574 q = pbuf_alloc(PBUF_RAW, p->tot_len, PBUF_RAM);
GordonSin 0:0ed2a7c7190c 1575 if(!q) {
GordonSin 0:0ed2a7c7190c 1576 PPPDEBUG(LOG_ERR,
GordonSin 0:0ed2a7c7190c 1577 ("pppSingleBuf: unable to alloc new buf (%d)\n", p->tot_len));
GordonSin 0:0ed2a7c7190c 1578 return p; /* live dangerously */
GordonSin 0:0ed2a7c7190c 1579 }
GordonSin 0:0ed2a7c7190c 1580
GordonSin 0:0ed2a7c7190c 1581 for(b = p, pl = q->payload; b != NULL; b = b->next) {
GordonSin 0:0ed2a7c7190c 1582 MEMCPY(pl, b->payload, b->len);
GordonSin 0:0ed2a7c7190c 1583 pl += b->len;
GordonSin 0:0ed2a7c7190c 1584 }
GordonSin 0:0ed2a7c7190c 1585
GordonSin 0:0ed2a7c7190c 1586 pbuf_free(p);
GordonSin 0:0ed2a7c7190c 1587
GordonSin 0:0ed2a7c7190c 1588 return q;
GordonSin 0:0ed2a7c7190c 1589 }
GordonSin 0:0ed2a7c7190c 1590
GordonSin 0:0ed2a7c7190c 1591 struct pppInputHeader {
GordonSin 0:0ed2a7c7190c 1592 int unit;
GordonSin 0:0ed2a7c7190c 1593 u16_t proto;
GordonSin 0:0ed2a7c7190c 1594 };
GordonSin 0:0ed2a7c7190c 1595
GordonSin 0:0ed2a7c7190c 1596 /*
GordonSin 0:0ed2a7c7190c 1597 * Pass the processed input packet to the appropriate handler.
GordonSin 0:0ed2a7c7190c 1598 * This function and all handlers run in the context of the tcpip_thread
GordonSin 0:0ed2a7c7190c 1599 */
GordonSin 0:0ed2a7c7190c 1600 static void
GordonSin 0:0ed2a7c7190c 1601 pppInput(void *arg)
GordonSin 0:0ed2a7c7190c 1602 {
GordonSin 0:0ed2a7c7190c 1603 struct pbuf *nb = (struct pbuf *)arg;
GordonSin 0:0ed2a7c7190c 1604 u16_t protocol;
GordonSin 0:0ed2a7c7190c 1605 int pd;
GordonSin 0:0ed2a7c7190c 1606
GordonSin 0:0ed2a7c7190c 1607 pd = ((struct pppInputHeader *)nb->payload)->unit;
GordonSin 0:0ed2a7c7190c 1608 protocol = ((struct pppInputHeader *)nb->payload)->proto;
GordonSin 0:0ed2a7c7190c 1609
GordonSin 0:0ed2a7c7190c 1610 if(pbuf_header(nb, -(int)sizeof(struct pppInputHeader))) {
GordonSin 0:0ed2a7c7190c 1611 LWIP_ASSERT("pbuf_header failed\n", 0);
GordonSin 0:0ed2a7c7190c 1612 goto drop;
GordonSin 0:0ed2a7c7190c 1613 }
GordonSin 0:0ed2a7c7190c 1614
GordonSin 0:0ed2a7c7190c 1615 LINK_STATS_INC(link.recv);
GordonSin 0:0ed2a7c7190c 1616 snmp_inc_ifinucastpkts(&pppControl[pd].netif);
GordonSin 0:0ed2a7c7190c 1617 snmp_add_ifinoctets(&pppControl[pd].netif, nb->tot_len);
GordonSin 0:0ed2a7c7190c 1618
GordonSin 0:0ed2a7c7190c 1619 /*
GordonSin 0:0ed2a7c7190c 1620 * Toss all non-LCP packets unless LCP is OPEN.
GordonSin 0:0ed2a7c7190c 1621 * Until we get past the authentication phase, toss all packets
GordonSin 0:0ed2a7c7190c 1622 * except LCP, LQR and authentication packets.
GordonSin 0:0ed2a7c7190c 1623 */
GordonSin 0:0ed2a7c7190c 1624 if((lcp_phase[pd] <= PHASE_AUTHENTICATE) && (protocol != PPP_LCP)) {
GordonSin 0:0ed2a7c7190c 1625 if(!((protocol == PPP_LQR) || (protocol == PPP_PAP) || (protocol == PPP_CHAP)) ||
GordonSin 0:0ed2a7c7190c 1626 (lcp_phase[pd] != PHASE_AUTHENTICATE)) {
GordonSin 0:0ed2a7c7190c 1627 PPPDEBUG(LOG_INFO, ("pppInput: discarding proto 0x%"X16_F" in phase %d\n", protocol, lcp_phase[pd]));
GordonSin 0:0ed2a7c7190c 1628 goto drop;
GordonSin 0:0ed2a7c7190c 1629 }
GordonSin 0:0ed2a7c7190c 1630 }
GordonSin 0:0ed2a7c7190c 1631
GordonSin 0:0ed2a7c7190c 1632 switch(protocol) {
GordonSin 0:0ed2a7c7190c 1633 case PPP_VJC_COMP: /* VJ compressed TCP */
GordonSin 0:0ed2a7c7190c 1634 #if PPPOS_SUPPORT && VJ_SUPPORT
GordonSin 0:0ed2a7c7190c 1635 PPPDEBUG(LOG_INFO, ("pppInput[%d]: vj_comp in pbuf len=%d\n", pd, nb->len));
GordonSin 0:0ed2a7c7190c 1636 /*
GordonSin 0:0ed2a7c7190c 1637 * Clip off the VJ header and prepend the rebuilt TCP/IP header and
GordonSin 0:0ed2a7c7190c 1638 * pass the result to IP.
GordonSin 0:0ed2a7c7190c 1639 */
GordonSin 0:0ed2a7c7190c 1640 if ((vj_uncompress_tcp(&nb, &pppControl[pd].vjComp) >= 0) && (pppControl[pd].netif.input)) {
GordonSin 0:0ed2a7c7190c 1641 pppControl[pd].netif.input(nb, &pppControl[pd].netif);
GordonSin 0:0ed2a7c7190c 1642 return;
GordonSin 0:0ed2a7c7190c 1643 }
GordonSin 0:0ed2a7c7190c 1644 /* Something's wrong so drop it. */
GordonSin 0:0ed2a7c7190c 1645 PPPDEBUG(LOG_WARNING, ("pppInput[%d]: Dropping VJ compressed\n", pd));
GordonSin 0:0ed2a7c7190c 1646 #else /* PPPOS_SUPPORT && VJ_SUPPORT */
GordonSin 0:0ed2a7c7190c 1647 /* No handler for this protocol so drop the packet. */
GordonSin 0:0ed2a7c7190c 1648 PPPDEBUG(LOG_INFO, ("pppInput[%d]: drop VJ Comp in %d:%s\n", pd, nb->len, nb->payload));
GordonSin 0:0ed2a7c7190c 1649 #endif /* PPPOS_SUPPORT && VJ_SUPPORT */
GordonSin 0:0ed2a7c7190c 1650 break;
GordonSin 0:0ed2a7c7190c 1651
GordonSin 0:0ed2a7c7190c 1652 case PPP_VJC_UNCOMP: /* VJ uncompressed TCP */
GordonSin 0:0ed2a7c7190c 1653 #if PPPOS_SUPPORT && VJ_SUPPORT
GordonSin 0:0ed2a7c7190c 1654 PPPDEBUG(LOG_INFO, ("pppInput[%d]: vj_un in pbuf len=%d\n", pd, nb->len));
GordonSin 0:0ed2a7c7190c 1655 /*
GordonSin 0:0ed2a7c7190c 1656 * Process the TCP/IP header for VJ header compression and then pass
GordonSin 0:0ed2a7c7190c 1657 * the packet to IP.
GordonSin 0:0ed2a7c7190c 1658 */
GordonSin 0:0ed2a7c7190c 1659 if ((vj_uncompress_uncomp(nb, &pppControl[pd].vjComp) >= 0) && pppControl[pd].netif.input) {
GordonSin 0:0ed2a7c7190c 1660 pppControl[pd].netif.input(nb, &pppControl[pd].netif);
GordonSin 0:0ed2a7c7190c 1661 return;
GordonSin 0:0ed2a7c7190c 1662 }
GordonSin 0:0ed2a7c7190c 1663 /* Something's wrong so drop it. */
GordonSin 0:0ed2a7c7190c 1664 PPPDEBUG(LOG_WARNING, ("pppInput[%d]: Dropping VJ uncompressed\n", pd));
GordonSin 0:0ed2a7c7190c 1665 #else /* PPPOS_SUPPORT && VJ_SUPPORT */
GordonSin 0:0ed2a7c7190c 1666 /* No handler for this protocol so drop the packet. */
GordonSin 0:0ed2a7c7190c 1667 PPPDEBUG(LOG_INFO,
GordonSin 0:0ed2a7c7190c 1668 ("pppInput[%d]: drop VJ UnComp in %d:.*H\n",
GordonSin 0:0ed2a7c7190c 1669 pd, nb->len, LWIP_MIN(nb->len * 2, 40), nb->payload));
GordonSin 0:0ed2a7c7190c 1670 #endif /* PPPOS_SUPPORT && VJ_SUPPORT */
GordonSin 0:0ed2a7c7190c 1671 break;
GordonSin 0:0ed2a7c7190c 1672
GordonSin 0:0ed2a7c7190c 1673 case PPP_IP: /* Internet Protocol */
GordonSin 0:0ed2a7c7190c 1674 PPPDEBUG(LOG_INFO, ("pppInput[%d]: ip in pbuf len=%d\n", pd, nb->len));
GordonSin 0:0ed2a7c7190c 1675 if (pppControl[pd].netif.input) {
GordonSin 0:0ed2a7c7190c 1676 pppControl[pd].netif.input(nb, &pppControl[pd].netif);
GordonSin 0:0ed2a7c7190c 1677 return;
GordonSin 0:0ed2a7c7190c 1678 }
GordonSin 0:0ed2a7c7190c 1679 break;
GordonSin 0:0ed2a7c7190c 1680
GordonSin 0:0ed2a7c7190c 1681 default: {
GordonSin 0:0ed2a7c7190c 1682 struct protent *protp;
GordonSin 0:0ed2a7c7190c 1683 int i;
GordonSin 0:0ed2a7c7190c 1684
GordonSin 0:0ed2a7c7190c 1685 /*
GordonSin 0:0ed2a7c7190c 1686 * Upcall the proper protocol input routine.
GordonSin 0:0ed2a7c7190c 1687 */
GordonSin 0:0ed2a7c7190c 1688 for (i = 0; (protp = ppp_protocols[i]) != NULL; ++i) {
GordonSin 0:0ed2a7c7190c 1689 if (protp->protocol == protocol && protp->enabled_flag) {
GordonSin 0:0ed2a7c7190c 1690 PPPDEBUG(LOG_INFO, ("pppInput[%d]: %s len=%d\n", pd, protp->name, nb->len));
GordonSin 0:0ed2a7c7190c 1691 nb = pppSingleBuf(nb);
GordonSin 0:0ed2a7c7190c 1692 (*protp->input)(pd, nb->payload, nb->len);
GordonSin 0:0ed2a7c7190c 1693 PPPDEBUG(LOG_DETAIL, ("pppInput[%d]: packet processed\n", pd));
GordonSin 0:0ed2a7c7190c 1694 goto out;
GordonSin 0:0ed2a7c7190c 1695 }
GordonSin 0:0ed2a7c7190c 1696 }
GordonSin 0:0ed2a7c7190c 1697
GordonSin 0:0ed2a7c7190c 1698 /* No handler for this protocol so reject the packet. */
GordonSin 0:0ed2a7c7190c 1699 PPPDEBUG(LOG_INFO, ("pppInput[%d]: rejecting unsupported proto 0x%"X16_F" len=%d\n", pd, protocol, nb->len));
GordonSin 0:0ed2a7c7190c 1700 if (pbuf_header(nb, sizeof(protocol))) {
GordonSin 0:0ed2a7c7190c 1701 LWIP_ASSERT("pbuf_header failed\n", 0);
GordonSin 0:0ed2a7c7190c 1702 goto drop;
GordonSin 0:0ed2a7c7190c 1703 }
GordonSin 0:0ed2a7c7190c 1704 #if BYTE_ORDER == LITTLE_ENDIAN
GordonSin 0:0ed2a7c7190c 1705 protocol = htons(protocol);
GordonSin 0:0ed2a7c7190c 1706 #endif /* BYTE_ORDER == LITTLE_ENDIAN */
GordonSin 0:0ed2a7c7190c 1707 SMEMCPY(nb->payload, &protocol, sizeof(protocol));
GordonSin 0:0ed2a7c7190c 1708 lcp_sprotrej(pd, nb->payload, nb->len);
GordonSin 0:0ed2a7c7190c 1709 }
GordonSin 0:0ed2a7c7190c 1710 break;
GordonSin 0:0ed2a7c7190c 1711 }
GordonSin 0:0ed2a7c7190c 1712
GordonSin 0:0ed2a7c7190c 1713 drop:
GordonSin 0:0ed2a7c7190c 1714 LINK_STATS_INC(link.drop);
GordonSin 0:0ed2a7c7190c 1715 snmp_inc_ifindiscards(&pppControl[pd].netif);
GordonSin 0:0ed2a7c7190c 1716
GordonSin 0:0ed2a7c7190c 1717 out:
GordonSin 0:0ed2a7c7190c 1718 pbuf_free(nb);
GordonSin 0:0ed2a7c7190c 1719 return;
GordonSin 0:0ed2a7c7190c 1720 }
GordonSin 0:0ed2a7c7190c 1721
GordonSin 0:0ed2a7c7190c 1722 #if PPPOS_SUPPORT
GordonSin 0:0ed2a7c7190c 1723 /*
GordonSin 0:0ed2a7c7190c 1724 * Drop the input packet.
GordonSin 0:0ed2a7c7190c 1725 */
GordonSin 0:0ed2a7c7190c 1726 static void
GordonSin 0:0ed2a7c7190c 1727 pppDrop(PPPControlRx *pcrx)
GordonSin 0:0ed2a7c7190c 1728 {
GordonSin 0:0ed2a7c7190c 1729 if (pcrx->inHead != NULL) {
GordonSin 0:0ed2a7c7190c 1730 #if 0
GordonSin 0:0ed2a7c7190c 1731 PPPDEBUG(LOG_INFO, ("pppDrop: %d:%.*H\n", pcrx->inHead->len, min(60, pcrx->inHead->len * 2), pcrx->inHead->payload));
GordonSin 0:0ed2a7c7190c 1732 #endif
GordonSin 0:0ed2a7c7190c 1733 PPPDEBUG(LOG_INFO, ("pppDrop: pbuf len=%d, addr %p\n", pcrx->inHead->len, (void*)pcrx->inHead));
GordonSin 0:0ed2a7c7190c 1734 if (pcrx->inTail && (pcrx->inTail != pcrx->inHead)) {
GordonSin 0:0ed2a7c7190c 1735 pbuf_free(pcrx->inTail);
GordonSin 0:0ed2a7c7190c 1736 }
GordonSin 0:0ed2a7c7190c 1737 pbuf_free(pcrx->inHead);
GordonSin 0:0ed2a7c7190c 1738 pcrx->inHead = NULL;
GordonSin 0:0ed2a7c7190c 1739 pcrx->inTail = NULL;
GordonSin 0:0ed2a7c7190c 1740 }
GordonSin 0:0ed2a7c7190c 1741 #if VJ_SUPPORT
GordonSin 0:0ed2a7c7190c 1742 vj_uncompress_err(&pppControl[pcrx->pd].vjComp);
GordonSin 0:0ed2a7c7190c 1743 #endif /* VJ_SUPPORT */
GordonSin 0:0ed2a7c7190c 1744
GordonSin 0:0ed2a7c7190c 1745 LINK_STATS_INC(link.drop);
GordonSin 0:0ed2a7c7190c 1746 snmp_inc_ifindiscards(&pppControl[pcrx->pd].netif);
GordonSin 0:0ed2a7c7190c 1747 }
GordonSin 0:0ed2a7c7190c 1748
GordonSin 0:0ed2a7c7190c 1749 /** Pass received raw characters to PPPoS to be decoded. This function is
GordonSin 0:0ed2a7c7190c 1750 * thread-safe and can be called from a dedicated RX-thread or from a main-loop.
GordonSin 0:0ed2a7c7190c 1751 *
GordonSin 0:0ed2a7c7190c 1752 * @param pd PPP descriptor index, returned by pppOpen()
GordonSin 0:0ed2a7c7190c 1753 * @param data received data
GordonSin 0:0ed2a7c7190c 1754 * @param len length of received data
GordonSin 0:0ed2a7c7190c 1755 */
GordonSin 0:0ed2a7c7190c 1756 void
GordonSin 0:0ed2a7c7190c 1757 pppos_input(int pd, u_char* data, int len)
GordonSin 0:0ed2a7c7190c 1758 {
GordonSin 0:0ed2a7c7190c 1759 pppInProc(&pppControl[pd].rx, data, len);
GordonSin 0:0ed2a7c7190c 1760 }
GordonSin 0:0ed2a7c7190c 1761
GordonSin 0:0ed2a7c7190c 1762 /**
GordonSin 0:0ed2a7c7190c 1763 * Process a received octet string.
GordonSin 0:0ed2a7c7190c 1764 */
GordonSin 0:0ed2a7c7190c 1765 static void
GordonSin 0:0ed2a7c7190c 1766 pppInProc(PPPControlRx *pcrx, u_char *s, int l)
GordonSin 0:0ed2a7c7190c 1767 {
GordonSin 0:0ed2a7c7190c 1768 struct pbuf *nextNBuf;
GordonSin 0:0ed2a7c7190c 1769 u_char curChar;
GordonSin 0:0ed2a7c7190c 1770 u_char escaped;
GordonSin 0:0ed2a7c7190c 1771 SYS_ARCH_DECL_PROTECT(lev);
GordonSin 0:0ed2a7c7190c 1772
GordonSin 0:0ed2a7c7190c 1773 PPPDEBUG(LOG_DEBUG, ("pppInProc[%d]: got %d bytes\n", pcrx->pd, l));
GordonSin 0:0ed2a7c7190c 1774 while (l-- > 0) {
GordonSin 0:0ed2a7c7190c 1775 curChar = *s++;
GordonSin 0:0ed2a7c7190c 1776
GordonSin 0:0ed2a7c7190c 1777 SYS_ARCH_PROTECT(lev);
GordonSin 0:0ed2a7c7190c 1778 escaped = ESCAPE_P(pcrx->inACCM, curChar);
GordonSin 0:0ed2a7c7190c 1779 SYS_ARCH_UNPROTECT(lev);
GordonSin 0:0ed2a7c7190c 1780 /* Handle special characters. */
GordonSin 0:0ed2a7c7190c 1781 if (escaped) {
GordonSin 0:0ed2a7c7190c 1782 /* Check for escape sequences. */
GordonSin 0:0ed2a7c7190c 1783 /* XXX Note that this does not handle an escaped 0x5d character which
GordonSin 0:0ed2a7c7190c 1784 * would appear as an escape character. Since this is an ASCII ']'
GordonSin 0:0ed2a7c7190c 1785 * and there is no reason that I know of to escape it, I won't complicate
GordonSin 0:0ed2a7c7190c 1786 * the code to handle this case. GLL */
GordonSin 0:0ed2a7c7190c 1787 if (curChar == PPP_ESCAPE) {
GordonSin 0:0ed2a7c7190c 1788 pcrx->inEscaped = 1;
GordonSin 0:0ed2a7c7190c 1789 /* Check for the flag character. */
GordonSin 0:0ed2a7c7190c 1790 } else if (curChar == PPP_FLAG) {
GordonSin 0:0ed2a7c7190c 1791 /* If this is just an extra flag character, ignore it. */
GordonSin 0:0ed2a7c7190c 1792 if (pcrx->inState <= PDADDRESS) {
GordonSin 0:0ed2a7c7190c 1793 /* ignore it */;
GordonSin 0:0ed2a7c7190c 1794 /* If we haven't received the packet header, drop what has come in. */
GordonSin 0:0ed2a7c7190c 1795 } else if (pcrx->inState < PDDATA) {
GordonSin 0:0ed2a7c7190c 1796 PPPDEBUG(LOG_WARNING,
GordonSin 0:0ed2a7c7190c 1797 ("pppInProc[%d]: Dropping incomplete packet %d\n",
GordonSin 0:0ed2a7c7190c 1798 pcrx->pd, pcrx->inState));
GordonSin 0:0ed2a7c7190c 1799 LINK_STATS_INC(link.lenerr);
GordonSin 0:0ed2a7c7190c 1800 pppDrop(pcrx);
GordonSin 0:0ed2a7c7190c 1801 /* If the fcs is invalid, drop the packet. */
GordonSin 0:0ed2a7c7190c 1802 } else if (pcrx->inFCS != PPP_GOODFCS) {
GordonSin 0:0ed2a7c7190c 1803 PPPDEBUG(LOG_INFO,
GordonSin 0:0ed2a7c7190c 1804 ("pppInProc[%d]: Dropping bad fcs 0x%"X16_F" proto=0x%"X16_F"\n",
GordonSin 0:0ed2a7c7190c 1805 pcrx->pd, pcrx->inFCS, pcrx->inProtocol));
GordonSin 0:0ed2a7c7190c 1806 /* Note: If you get lots of these, check for UART frame errors or try different baud rate */
GordonSin 0:0ed2a7c7190c 1807 LINK_STATS_INC(link.chkerr);
GordonSin 0:0ed2a7c7190c 1808 pppDrop(pcrx);
GordonSin 0:0ed2a7c7190c 1809 /* Otherwise it's a good packet so pass it on. */
GordonSin 0:0ed2a7c7190c 1810 } else {
GordonSin 0:0ed2a7c7190c 1811 struct pbuf *inp;
GordonSin 0:0ed2a7c7190c 1812 /* Trim off the checksum. */
GordonSin 0:0ed2a7c7190c 1813 if(pcrx->inTail->len >= 2) {
GordonSin 0:0ed2a7c7190c 1814 pcrx->inTail->len -= 2;
GordonSin 0:0ed2a7c7190c 1815
GordonSin 0:0ed2a7c7190c 1816 pcrx->inTail->tot_len = pcrx->inTail->len;
GordonSin 0:0ed2a7c7190c 1817 if (pcrx->inTail != pcrx->inHead) {
GordonSin 0:0ed2a7c7190c 1818 pbuf_cat(pcrx->inHead, pcrx->inTail);
GordonSin 0:0ed2a7c7190c 1819 }
GordonSin 0:0ed2a7c7190c 1820 } else {
GordonSin 0:0ed2a7c7190c 1821 pcrx->inTail->tot_len = pcrx->inTail->len;
GordonSin 0:0ed2a7c7190c 1822 if (pcrx->inTail != pcrx->inHead) {
GordonSin 0:0ed2a7c7190c 1823 pbuf_cat(pcrx->inHead, pcrx->inTail);
GordonSin 0:0ed2a7c7190c 1824 }
GordonSin 0:0ed2a7c7190c 1825
GordonSin 0:0ed2a7c7190c 1826 pbuf_realloc(pcrx->inHead, pcrx->inHead->tot_len - 2);
GordonSin 0:0ed2a7c7190c 1827 }
GordonSin 0:0ed2a7c7190c 1828
GordonSin 0:0ed2a7c7190c 1829 /* Dispatch the packet thereby consuming it. */
GordonSin 0:0ed2a7c7190c 1830 inp = pcrx->inHead;
GordonSin 0:0ed2a7c7190c 1831 /* Packet consumed, release our references. */
GordonSin 0:0ed2a7c7190c 1832 pcrx->inHead = NULL;
GordonSin 0:0ed2a7c7190c 1833 pcrx->inTail = NULL;
GordonSin 0:0ed2a7c7190c 1834 #if PPP_INPROC_MULTITHREADED
GordonSin 0:0ed2a7c7190c 1835 if(tcpip_callback_with_block(pppInput, inp, 0) != ERR_OK) {
GordonSin 0:0ed2a7c7190c 1836 PPPDEBUG(LOG_ERR, ("pppInProc[%d]: tcpip_callback() failed, dropping packet\n", pcrx->pd));
GordonSin 0:0ed2a7c7190c 1837 pbuf_free(inp);
GordonSin 0:0ed2a7c7190c 1838 LINK_STATS_INC(link.drop);
GordonSin 0:0ed2a7c7190c 1839 snmp_inc_ifindiscards(&pppControl[pcrx->pd].netif);
GordonSin 0:0ed2a7c7190c 1840 }
GordonSin 0:0ed2a7c7190c 1841 #else /* PPP_INPROC_MULTITHREADED */
GordonSin 0:0ed2a7c7190c 1842 pppInput(inp);
GordonSin 0:0ed2a7c7190c 1843 #endif /* PPP_INPROC_MULTITHREADED */
GordonSin 0:0ed2a7c7190c 1844 }
GordonSin 0:0ed2a7c7190c 1845
GordonSin 0:0ed2a7c7190c 1846 /* Prepare for a new packet. */
GordonSin 0:0ed2a7c7190c 1847 pcrx->inFCS = PPP_INITFCS;
GordonSin 0:0ed2a7c7190c 1848 pcrx->inState = PDADDRESS;
GordonSin 0:0ed2a7c7190c 1849 pcrx->inEscaped = 0;
GordonSin 0:0ed2a7c7190c 1850 /* Other characters are usually control characters that may have
GordonSin 0:0ed2a7c7190c 1851 * been inserted by the physical layer so here we just drop them. */
GordonSin 0:0ed2a7c7190c 1852 } else {
GordonSin 0:0ed2a7c7190c 1853 PPPDEBUG(LOG_WARNING,
GordonSin 0:0ed2a7c7190c 1854 ("pppInProc[%d]: Dropping ACCM char <%d>\n", pcrx->pd, curChar));
GordonSin 0:0ed2a7c7190c 1855 }
GordonSin 0:0ed2a7c7190c 1856 /* Process other characters. */
GordonSin 0:0ed2a7c7190c 1857 } else {
GordonSin 0:0ed2a7c7190c 1858 /* Unencode escaped characters. */
GordonSin 0:0ed2a7c7190c 1859 if (pcrx->inEscaped) {
GordonSin 0:0ed2a7c7190c 1860 pcrx->inEscaped = 0;
GordonSin 0:0ed2a7c7190c 1861 curChar ^= PPP_TRANS;
GordonSin 0:0ed2a7c7190c 1862 }
GordonSin 0:0ed2a7c7190c 1863
GordonSin 0:0ed2a7c7190c 1864 /* Process character relative to current state. */
GordonSin 0:0ed2a7c7190c 1865 switch(pcrx->inState) {
GordonSin 0:0ed2a7c7190c 1866 case PDIDLE: /* Idle state - waiting. */
GordonSin 0:0ed2a7c7190c 1867 /* Drop the character if it's not 0xff
GordonSin 0:0ed2a7c7190c 1868 * we would have processed a flag character above. */
GordonSin 0:0ed2a7c7190c 1869 if (curChar != PPP_ALLSTATIONS) {
GordonSin 0:0ed2a7c7190c 1870 break;
GordonSin 0:0ed2a7c7190c 1871 }
GordonSin 0:0ed2a7c7190c 1872
GordonSin 0:0ed2a7c7190c 1873 /* Fall through */
GordonSin 0:0ed2a7c7190c 1874 case PDSTART: /* Process start flag. */
GordonSin 0:0ed2a7c7190c 1875 /* Prepare for a new packet. */
GordonSin 0:0ed2a7c7190c 1876 pcrx->inFCS = PPP_INITFCS;
GordonSin 0:0ed2a7c7190c 1877
GordonSin 0:0ed2a7c7190c 1878 /* Fall through */
GordonSin 0:0ed2a7c7190c 1879 case PDADDRESS: /* Process address field. */
GordonSin 0:0ed2a7c7190c 1880 if (curChar == PPP_ALLSTATIONS) {
GordonSin 0:0ed2a7c7190c 1881 pcrx->inState = PDCONTROL;
GordonSin 0:0ed2a7c7190c 1882 break;
GordonSin 0:0ed2a7c7190c 1883 }
GordonSin 0:0ed2a7c7190c 1884 /* Else assume compressed address and control fields so
GordonSin 0:0ed2a7c7190c 1885 * fall through to get the protocol... */
GordonSin 0:0ed2a7c7190c 1886 case PDCONTROL: /* Process control field. */
GordonSin 0:0ed2a7c7190c 1887 /* If we don't get a valid control code, restart. */
GordonSin 0:0ed2a7c7190c 1888 if (curChar == PPP_UI) {
GordonSin 0:0ed2a7c7190c 1889 pcrx->inState = PDPROTOCOL1;
GordonSin 0:0ed2a7c7190c 1890 break;
GordonSin 0:0ed2a7c7190c 1891 }
GordonSin 0:0ed2a7c7190c 1892 #if 0
GordonSin 0:0ed2a7c7190c 1893 else {
GordonSin 0:0ed2a7c7190c 1894 PPPDEBUG(LOG_WARNING,
GordonSin 0:0ed2a7c7190c 1895 ("pppInProc[%d]: Invalid control <%d>\n", pcrx->pd, curChar));
GordonSin 0:0ed2a7c7190c 1896 pcrx->inState = PDSTART;
GordonSin 0:0ed2a7c7190c 1897 }
GordonSin 0:0ed2a7c7190c 1898 #endif
GordonSin 0:0ed2a7c7190c 1899 case PDPROTOCOL1: /* Process protocol field 1. */
GordonSin 0:0ed2a7c7190c 1900 /* If the lower bit is set, this is the end of the protocol
GordonSin 0:0ed2a7c7190c 1901 * field. */
GordonSin 0:0ed2a7c7190c 1902 if (curChar & 1) {
GordonSin 0:0ed2a7c7190c 1903 pcrx->inProtocol = curChar;
GordonSin 0:0ed2a7c7190c 1904 pcrx->inState = PDDATA;
GordonSin 0:0ed2a7c7190c 1905 } else {
GordonSin 0:0ed2a7c7190c 1906 pcrx->inProtocol = (u_int)curChar << 8;
GordonSin 0:0ed2a7c7190c 1907 pcrx->inState = PDPROTOCOL2;
GordonSin 0:0ed2a7c7190c 1908 }
GordonSin 0:0ed2a7c7190c 1909 break;
GordonSin 0:0ed2a7c7190c 1910 case PDPROTOCOL2: /* Process protocol field 2. */
GordonSin 0:0ed2a7c7190c 1911 pcrx->inProtocol |= curChar;
GordonSin 0:0ed2a7c7190c 1912 pcrx->inState = PDDATA;
GordonSin 0:0ed2a7c7190c 1913 break;
GordonSin 0:0ed2a7c7190c 1914 case PDDATA: /* Process data byte. */
GordonSin 0:0ed2a7c7190c 1915 /* Make space to receive processed data. */
GordonSin 0:0ed2a7c7190c 1916 if (pcrx->inTail == NULL || pcrx->inTail->len == PBUF_POOL_BUFSIZE) {
GordonSin 0:0ed2a7c7190c 1917 if (pcrx->inTail != NULL) {
GordonSin 0:0ed2a7c7190c 1918 pcrx->inTail->tot_len = pcrx->inTail->len;
GordonSin 0:0ed2a7c7190c 1919 if (pcrx->inTail != pcrx->inHead) {
GordonSin 0:0ed2a7c7190c 1920 pbuf_cat(pcrx->inHead, pcrx->inTail);
GordonSin 0:0ed2a7c7190c 1921 /* give up the inTail reference now */
GordonSin 0:0ed2a7c7190c 1922 pcrx->inTail = NULL;
GordonSin 0:0ed2a7c7190c 1923 }
GordonSin 0:0ed2a7c7190c 1924 }
GordonSin 0:0ed2a7c7190c 1925 /* If we haven't started a packet, we need a packet header. */
GordonSin 0:0ed2a7c7190c 1926 nextNBuf = pbuf_alloc(PBUF_RAW, 0, PBUF_POOL);
GordonSin 0:0ed2a7c7190c 1927 if (nextNBuf == NULL) {
GordonSin 0:0ed2a7c7190c 1928 /* No free buffers. Drop the input packet and let the
GordonSin 0:0ed2a7c7190c 1929 * higher layers deal with it. Continue processing
GordonSin 0:0ed2a7c7190c 1930 * the received pbuf chain in case a new packet starts. */
GordonSin 0:0ed2a7c7190c 1931 PPPDEBUG(LOG_ERR, ("pppInProc[%d]: NO FREE MBUFS!\n", pcrx->pd));
GordonSin 0:0ed2a7c7190c 1932 LINK_STATS_INC(link.memerr);
GordonSin 0:0ed2a7c7190c 1933 pppDrop(pcrx);
GordonSin 0:0ed2a7c7190c 1934 pcrx->inState = PDSTART; /* Wait for flag sequence. */
GordonSin 0:0ed2a7c7190c 1935 break;
GordonSin 0:0ed2a7c7190c 1936 }
GordonSin 0:0ed2a7c7190c 1937 if (pcrx->inHead == NULL) {
GordonSin 0:0ed2a7c7190c 1938 struct pppInputHeader *pih = nextNBuf->payload;
GordonSin 0:0ed2a7c7190c 1939
GordonSin 0:0ed2a7c7190c 1940 pih->unit = pcrx->pd;
GordonSin 0:0ed2a7c7190c 1941 pih->proto = pcrx->inProtocol;
GordonSin 0:0ed2a7c7190c 1942
GordonSin 0:0ed2a7c7190c 1943 nextNBuf->len += sizeof(*pih);
GordonSin 0:0ed2a7c7190c 1944
GordonSin 0:0ed2a7c7190c 1945 pcrx->inHead = nextNBuf;
GordonSin 0:0ed2a7c7190c 1946 }
GordonSin 0:0ed2a7c7190c 1947 pcrx->inTail = nextNBuf;
GordonSin 0:0ed2a7c7190c 1948 }
GordonSin 0:0ed2a7c7190c 1949 /* Load character into buffer. */
GordonSin 0:0ed2a7c7190c 1950 ((u_char*)pcrx->inTail->payload)[pcrx->inTail->len++] = curChar;
GordonSin 0:0ed2a7c7190c 1951 break;
GordonSin 0:0ed2a7c7190c 1952 }
GordonSin 0:0ed2a7c7190c 1953
GordonSin 0:0ed2a7c7190c 1954 /* update the frame check sequence number. */
GordonSin 0:0ed2a7c7190c 1955 pcrx->inFCS = PPP_FCS(pcrx->inFCS, curChar);
GordonSin 0:0ed2a7c7190c 1956 }
GordonSin 0:0ed2a7c7190c 1957 } /* while (l-- > 0), all bytes processed */
GordonSin 0:0ed2a7c7190c 1958
GordonSin 0:0ed2a7c7190c 1959 avRandomize();
GordonSin 0:0ed2a7c7190c 1960 }
GordonSin 0:0ed2a7c7190c 1961 #endif /* PPPOS_SUPPORT */
GordonSin 0:0ed2a7c7190c 1962
GordonSin 0:0ed2a7c7190c 1963 #if PPPOE_SUPPORT
GordonSin 0:0ed2a7c7190c 1964 void
GordonSin 0:0ed2a7c7190c 1965 pppInProcOverEthernet(int pd, struct pbuf *pb)
GordonSin 0:0ed2a7c7190c 1966 {
GordonSin 0:0ed2a7c7190c 1967 struct pppInputHeader *pih;
GordonSin 0:0ed2a7c7190c 1968 u16_t inProtocol;
GordonSin 0:0ed2a7c7190c 1969
GordonSin 0:0ed2a7c7190c 1970 if(pb->len < sizeof(inProtocol)) {
GordonSin 0:0ed2a7c7190c 1971 PPPDEBUG(LOG_ERR, ("pppInProcOverEthernet: too small for protocol field\n"));
GordonSin 0:0ed2a7c7190c 1972 goto drop;
GordonSin 0:0ed2a7c7190c 1973 }
GordonSin 0:0ed2a7c7190c 1974
GordonSin 0:0ed2a7c7190c 1975 inProtocol = (((u8_t *)pb->payload)[0] << 8) | ((u8_t*)pb->payload)[1];
GordonSin 0:0ed2a7c7190c 1976
GordonSin 0:0ed2a7c7190c 1977 /* make room for pppInputHeader - should not fail */
GordonSin 0:0ed2a7c7190c 1978 if (pbuf_header(pb, sizeof(*pih) - sizeof(inProtocol)) != 0) {
GordonSin 0:0ed2a7c7190c 1979 PPPDEBUG(LOG_ERR, ("pppInProcOverEthernet: could not allocate room for header\n"));
GordonSin 0:0ed2a7c7190c 1980 goto drop;
GordonSin 0:0ed2a7c7190c 1981 }
GordonSin 0:0ed2a7c7190c 1982
GordonSin 0:0ed2a7c7190c 1983 pih = pb->payload;
GordonSin 0:0ed2a7c7190c 1984
GordonSin 0:0ed2a7c7190c 1985 pih->unit = pd;
GordonSin 0:0ed2a7c7190c 1986 pih->proto = inProtocol;
GordonSin 0:0ed2a7c7190c 1987
GordonSin 0:0ed2a7c7190c 1988 /* Dispatch the packet thereby consuming it. */
GordonSin 0:0ed2a7c7190c 1989 pppInput(pb);
GordonSin 0:0ed2a7c7190c 1990 return;
GordonSin 0:0ed2a7c7190c 1991
GordonSin 0:0ed2a7c7190c 1992 drop:
GordonSin 0:0ed2a7c7190c 1993 LINK_STATS_INC(link.drop);
GordonSin 0:0ed2a7c7190c 1994 snmp_inc_ifindiscards(&pppControl[pd].netif);
GordonSin 0:0ed2a7c7190c 1995 pbuf_free(pb);
GordonSin 0:0ed2a7c7190c 1996 return;
GordonSin 0:0ed2a7c7190c 1997 }
GordonSin 0:0ed2a7c7190c 1998 #endif /* PPPOE_SUPPORT */
GordonSin 0:0ed2a7c7190c 1999
GordonSin 0:0ed2a7c7190c 2000 #if LWIP_NETIF_STATUS_CALLBACK
GordonSin 0:0ed2a7c7190c 2001 /** Set the status callback of a PPP's netif
GordonSin 0:0ed2a7c7190c 2002 *
GordonSin 0:0ed2a7c7190c 2003 * @param pd The PPP descriptor returned by pppOpen()
GordonSin 0:0ed2a7c7190c 2004 * @param status_callback pointer to the status callback function
GordonSin 0:0ed2a7c7190c 2005 *
GordonSin 0:0ed2a7c7190c 2006 * @see netif_set_status_callback
GordonSin 0:0ed2a7c7190c 2007 */
GordonSin 0:0ed2a7c7190c 2008 void
GordonSin 0:0ed2a7c7190c 2009 ppp_set_netif_statuscallback(int pd, netif_status_callback_fn status_callback)
GordonSin 0:0ed2a7c7190c 2010 {
GordonSin 0:0ed2a7c7190c 2011 netif_set_status_callback(&pppControl[pd].netif, status_callback);
GordonSin 0:0ed2a7c7190c 2012 }
GordonSin 0:0ed2a7c7190c 2013 #endif /* LWIP_NETIF_STATUS_CALLBACK */
GordonSin 0:0ed2a7c7190c 2014
GordonSin 0:0ed2a7c7190c 2015 #if LWIP_NETIF_LINK_CALLBACK
GordonSin 0:0ed2a7c7190c 2016 /** Set the link callback of a PPP's netif
GordonSin 0:0ed2a7c7190c 2017 *
GordonSin 0:0ed2a7c7190c 2018 * @param pd The PPP descriptor returned by pppOpen()
GordonSin 0:0ed2a7c7190c 2019 * @param link_callback pointer to the link callback function
GordonSin 0:0ed2a7c7190c 2020 *
GordonSin 0:0ed2a7c7190c 2021 * @see netif_set_link_callback
GordonSin 0:0ed2a7c7190c 2022 */
GordonSin 0:0ed2a7c7190c 2023 void
GordonSin 0:0ed2a7c7190c 2024 ppp_set_netif_linkcallback(int pd, netif_status_callback_fn link_callback)
GordonSin 0:0ed2a7c7190c 2025 {
GordonSin 0:0ed2a7c7190c 2026 netif_set_link_callback(&pppControl[pd].netif, link_callback);
GordonSin 0:0ed2a7c7190c 2027 }
GordonSin 0:0ed2a7c7190c 2028 #endif /* LWIP_NETIF_LINK_CALLBACK */
GordonSin 0:0ed2a7c7190c 2029
GordonSin 0:0ed2a7c7190c 2030 #endif /* PPP_SUPPORT */