Embedded C project:18/12/2014

Dependencies:   DS1307 TextLCD mbed

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

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ninoderkinderen 0:8d87bc453349 1 /*****************************************************************************
ninoderkinderen 0:8d87bc453349 2 * ppp.h - Network Point to Point Protocol header file.
ninoderkinderen 0:8d87bc453349 3 *
ninoderkinderen 0:8d87bc453349 4 * Copyright (c) 2003 by Marc Boucher, Services Informatiques (MBSI) inc.
ninoderkinderen 0:8d87bc453349 5 * portions Copyright (c) 1997 Global Election Systems Inc.
ninoderkinderen 0:8d87bc453349 6 *
ninoderkinderen 0:8d87bc453349 7 * The authors hereby grant permission to use, copy, modify, distribute,
ninoderkinderen 0:8d87bc453349 8 * and license this software and its documentation for any purpose, provided
ninoderkinderen 0:8d87bc453349 9 * that existing copyright notices are retained in all copies and that this
ninoderkinderen 0:8d87bc453349 10 * notice and the following disclaimer are included verbatim in any
ninoderkinderen 0:8d87bc453349 11 * distributions. No written agreement, license, or royalty fee is required
ninoderkinderen 0:8d87bc453349 12 * for any of the authorized uses.
ninoderkinderen 0:8d87bc453349 13 *
ninoderkinderen 0:8d87bc453349 14 * THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS *AS IS* AND ANY EXPRESS OR
ninoderkinderen 0:8d87bc453349 15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
ninoderkinderen 0:8d87bc453349 16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
ninoderkinderen 0:8d87bc453349 17 * IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
ninoderkinderen 0:8d87bc453349 18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
ninoderkinderen 0:8d87bc453349 19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
ninoderkinderen 0:8d87bc453349 20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
ninoderkinderen 0:8d87bc453349 21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
ninoderkinderen 0:8d87bc453349 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
ninoderkinderen 0:8d87bc453349 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
ninoderkinderen 0:8d87bc453349 24 *
ninoderkinderen 0:8d87bc453349 25 ******************************************************************************
ninoderkinderen 0:8d87bc453349 26 * REVISION HISTORY
ninoderkinderen 0:8d87bc453349 27 *
ninoderkinderen 0:8d87bc453349 28 * 03-01-01 Marc Boucher <marc@mbsi.ca>
ninoderkinderen 0:8d87bc453349 29 * Ported to lwIP.
ninoderkinderen 0:8d87bc453349 30 * 97-11-05 Guy Lancaster <glanca@gesn.com>, Global Election Systems Inc.
ninoderkinderen 0:8d87bc453349 31 * Original derived from BSD codes.
ninoderkinderen 0:8d87bc453349 32 *****************************************************************************/
ninoderkinderen 0:8d87bc453349 33
ninoderkinderen 0:8d87bc453349 34 #ifndef PPP_H
ninoderkinderen 0:8d87bc453349 35 #define PPP_H
ninoderkinderen 0:8d87bc453349 36
ninoderkinderen 0:8d87bc453349 37 #include "lwip/opt.h"
ninoderkinderen 0:8d87bc453349 38
ninoderkinderen 0:8d87bc453349 39 #if PPP_SUPPORT /* don't build if not configured for use in lwipopts.h */
ninoderkinderen 0:8d87bc453349 40
ninoderkinderen 0:8d87bc453349 41 #include "lwip/def.h"
ninoderkinderen 0:8d87bc453349 42 #include "lwip/sio.h"
ninoderkinderen 0:8d87bc453349 43 #include "lwip/stats.h"
ninoderkinderen 0:8d87bc453349 44 #include "lwip/mem.h"
ninoderkinderen 0:8d87bc453349 45 #include "lwip/netif.h"
ninoderkinderen 0:8d87bc453349 46 #include "lwip/sys.h"
ninoderkinderen 0:8d87bc453349 47 #include "lwip/timers.h"
ninoderkinderen 0:8d87bc453349 48
ninoderkinderen 0:8d87bc453349 49 /** Some defines for code we skip compared to the original pppd.
ninoderkinderen 0:8d87bc453349 50 * These are just here to minimise the use of the ugly "#if 0". */
ninoderkinderen 0:8d87bc453349 51 #define PPP_ADDITIONAL_CALLBACKS 0
ninoderkinderen 0:8d87bc453349 52
ninoderkinderen 0:8d87bc453349 53 /** Some error checks to test for unsupported code */
ninoderkinderen 0:8d87bc453349 54 #if CBCP_SUPPORT
ninoderkinderen 0:8d87bc453349 55 #error "CBCP is not supported in lwIP PPP"
ninoderkinderen 0:8d87bc453349 56 #endif
ninoderkinderen 0:8d87bc453349 57 #if CCP_SUPPORT
ninoderkinderen 0:8d87bc453349 58 #error "CCP is not supported in lwIP PPP"
ninoderkinderen 0:8d87bc453349 59 #endif
ninoderkinderen 0:8d87bc453349 60
ninoderkinderen 0:8d87bc453349 61 /*
ninoderkinderen 0:8d87bc453349 62 * pppd.h - PPP daemon global declarations.
ninoderkinderen 0:8d87bc453349 63 *
ninoderkinderen 0:8d87bc453349 64 * Copyright (c) 1989 Carnegie Mellon University.
ninoderkinderen 0:8d87bc453349 65 * All rights reserved.
ninoderkinderen 0:8d87bc453349 66 *
ninoderkinderen 0:8d87bc453349 67 * Redistribution and use in source and binary forms are permitted
ninoderkinderen 0:8d87bc453349 68 * provided that the above copyright notice and this paragraph are
ninoderkinderen 0:8d87bc453349 69 * duplicated in all such forms and that any documentation,
ninoderkinderen 0:8d87bc453349 70 * advertising materials, and other materials related to such
ninoderkinderen 0:8d87bc453349 71 * distribution and use acknowledge that the software was developed
ninoderkinderen 0:8d87bc453349 72 * by Carnegie Mellon University. The name of the
ninoderkinderen 0:8d87bc453349 73 * University may not be used to endorse or promote products derived
ninoderkinderen 0:8d87bc453349 74 * from this software without specific prior written permission.
ninoderkinderen 0:8d87bc453349 75 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
ninoderkinderen 0:8d87bc453349 76 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
ninoderkinderen 0:8d87bc453349 77 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
ninoderkinderen 0:8d87bc453349 78 *
ninoderkinderen 0:8d87bc453349 79 */
ninoderkinderen 0:8d87bc453349 80 /*
ninoderkinderen 0:8d87bc453349 81 * ppp_defs.h - PPP definitions.
ninoderkinderen 0:8d87bc453349 82 *
ninoderkinderen 0:8d87bc453349 83 * Copyright (c) 1994 The Australian National University.
ninoderkinderen 0:8d87bc453349 84 * All rights reserved.
ninoderkinderen 0:8d87bc453349 85 *
ninoderkinderen 0:8d87bc453349 86 * Permission to use, copy, modify, and distribute this software and its
ninoderkinderen 0:8d87bc453349 87 * documentation is hereby granted, provided that the above copyright
ninoderkinderen 0:8d87bc453349 88 * notice appears in all copies. This software is provided without any
ninoderkinderen 0:8d87bc453349 89 * warranty, express or implied. The Australian National University
ninoderkinderen 0:8d87bc453349 90 * makes no representations about the suitability of this software for
ninoderkinderen 0:8d87bc453349 91 * any purpose.
ninoderkinderen 0:8d87bc453349 92 *
ninoderkinderen 0:8d87bc453349 93 * IN NO EVENT SHALL THE AUSTRALIAN NATIONAL UNIVERSITY BE LIABLE TO ANY
ninoderkinderen 0:8d87bc453349 94 * PARTY FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
ninoderkinderen 0:8d87bc453349 95 * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF
ninoderkinderen 0:8d87bc453349 96 * THE AUSTRALIAN NATIONAL UNIVERSITY HAVE BEEN ADVISED OF THE POSSIBILITY
ninoderkinderen 0:8d87bc453349 97 * OF SUCH DAMAGE.
ninoderkinderen 0:8d87bc453349 98 *
ninoderkinderen 0:8d87bc453349 99 * THE AUSTRALIAN NATIONAL UNIVERSITY SPECIFICALLY DISCLAIMS ANY WARRANTIES,
ninoderkinderen 0:8d87bc453349 100 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
ninoderkinderen 0:8d87bc453349 101 * AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
ninoderkinderen 0:8d87bc453349 102 * ON AN "AS IS" BASIS, AND THE AUSTRALIAN NATIONAL UNIVERSITY HAS NO
ninoderkinderen 0:8d87bc453349 103 * OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS,
ninoderkinderen 0:8d87bc453349 104 * OR MODIFICATIONS.
ninoderkinderen 0:8d87bc453349 105 */
ninoderkinderen 0:8d87bc453349 106
ninoderkinderen 0:8d87bc453349 107 #define TIMEOUT(f, a, t) do { sys_untimeout((f), (a)); sys_timeout((t)*1000, (f), (a)); } while(0)
ninoderkinderen 0:8d87bc453349 108 #define UNTIMEOUT(f, a) sys_untimeout((f), (a))
ninoderkinderen 0:8d87bc453349 109
ninoderkinderen 0:8d87bc453349 110
ninoderkinderen 0:8d87bc453349 111 #ifndef __u_char_defined
ninoderkinderen 0:8d87bc453349 112
ninoderkinderen 0:8d87bc453349 113 /* Type definitions for BSD code. */
ninoderkinderen 0:8d87bc453349 114 typedef unsigned long u_long;
ninoderkinderen 0:8d87bc453349 115 typedef unsigned int u_int;
ninoderkinderen 0:8d87bc453349 116 typedef unsigned short u_short;
ninoderkinderen 0:8d87bc453349 117 typedef unsigned char u_char;
ninoderkinderen 0:8d87bc453349 118
ninoderkinderen 0:8d87bc453349 119 #endif
ninoderkinderen 0:8d87bc453349 120
ninoderkinderen 0:8d87bc453349 121 /*
ninoderkinderen 0:8d87bc453349 122 * Constants and structures defined by the internet system,
ninoderkinderen 0:8d87bc453349 123 * Per RFC 790, September 1981, and numerous additions.
ninoderkinderen 0:8d87bc453349 124 */
ninoderkinderen 0:8d87bc453349 125
ninoderkinderen 0:8d87bc453349 126 /*
ninoderkinderen 0:8d87bc453349 127 * The basic PPP frame.
ninoderkinderen 0:8d87bc453349 128 */
ninoderkinderen 0:8d87bc453349 129 #define PPP_HDRLEN 4 /* octets for standard ppp header */
ninoderkinderen 0:8d87bc453349 130 #define PPP_FCSLEN 2 /* octets for FCS */
ninoderkinderen 0:8d87bc453349 131
ninoderkinderen 0:8d87bc453349 132
ninoderkinderen 0:8d87bc453349 133 /*
ninoderkinderen 0:8d87bc453349 134 * Significant octet values.
ninoderkinderen 0:8d87bc453349 135 */
ninoderkinderen 0:8d87bc453349 136 #define PPP_ALLSTATIONS 0xff /* All-Stations broadcast address */
ninoderkinderen 0:8d87bc453349 137 #define PPP_UI 0x03 /* Unnumbered Information */
ninoderkinderen 0:8d87bc453349 138 #define PPP_FLAG 0x7e /* Flag Sequence */
ninoderkinderen 0:8d87bc453349 139 #define PPP_ESCAPE 0x7d /* Asynchronous Control Escape */
ninoderkinderen 0:8d87bc453349 140 #define PPP_TRANS 0x20 /* Asynchronous transparency modifier */
ninoderkinderen 0:8d87bc453349 141
ninoderkinderen 0:8d87bc453349 142 /*
ninoderkinderen 0:8d87bc453349 143 * Protocol field values.
ninoderkinderen 0:8d87bc453349 144 */
ninoderkinderen 0:8d87bc453349 145 #define PPP_IP 0x21 /* Internet Protocol */
ninoderkinderen 0:8d87bc453349 146 #define PPP_AT 0x29 /* AppleTalk Protocol */
ninoderkinderen 0:8d87bc453349 147 #define PPP_VJC_COMP 0x2d /* VJ compressed TCP */
ninoderkinderen 0:8d87bc453349 148 #define PPP_VJC_UNCOMP 0x2f /* VJ uncompressed TCP */
ninoderkinderen 0:8d87bc453349 149 #define PPP_COMP 0xfd /* compressed packet */
ninoderkinderen 0:8d87bc453349 150 #define PPP_IPCP 0x8021 /* IP Control Protocol */
ninoderkinderen 0:8d87bc453349 151 #define PPP_ATCP 0x8029 /* AppleTalk Control Protocol */
ninoderkinderen 0:8d87bc453349 152 #define PPP_CCP 0x80fd /* Compression Control Protocol */
ninoderkinderen 0:8d87bc453349 153 #define PPP_LCP 0xc021 /* Link Control Protocol */
ninoderkinderen 0:8d87bc453349 154 #define PPP_PAP 0xc023 /* Password Authentication Protocol */
ninoderkinderen 0:8d87bc453349 155 #define PPP_LQR 0xc025 /* Link Quality Report protocol */
ninoderkinderen 0:8d87bc453349 156 #define PPP_CHAP 0xc223 /* Cryptographic Handshake Auth. Protocol */
ninoderkinderen 0:8d87bc453349 157 #define PPP_CBCP 0xc029 /* Callback Control Protocol */
ninoderkinderen 0:8d87bc453349 158
ninoderkinderen 0:8d87bc453349 159 /*
ninoderkinderen 0:8d87bc453349 160 * Values for FCS calculations.
ninoderkinderen 0:8d87bc453349 161 */
ninoderkinderen 0:8d87bc453349 162 #define PPP_INITFCS 0xffff /* Initial FCS value */
ninoderkinderen 0:8d87bc453349 163 #define PPP_GOODFCS 0xf0b8 /* Good final FCS value */
ninoderkinderen 0:8d87bc453349 164 #define PPP_FCS(fcs, c) (((fcs) >> 8) ^ fcstab[((fcs) ^ (c)) & 0xff])
ninoderkinderen 0:8d87bc453349 165
ninoderkinderen 0:8d87bc453349 166 /*
ninoderkinderen 0:8d87bc453349 167 * Extended asyncmap - allows any character to be escaped.
ninoderkinderen 0:8d87bc453349 168 */
ninoderkinderen 0:8d87bc453349 169 typedef u_char ext_accm[32];
ninoderkinderen 0:8d87bc453349 170
ninoderkinderen 0:8d87bc453349 171 /*
ninoderkinderen 0:8d87bc453349 172 * What to do with network protocol (NP) packets.
ninoderkinderen 0:8d87bc453349 173 */
ninoderkinderen 0:8d87bc453349 174 enum NPmode {
ninoderkinderen 0:8d87bc453349 175 NPMODE_PASS, /* pass the packet through */
ninoderkinderen 0:8d87bc453349 176 NPMODE_DROP, /* silently drop the packet */
ninoderkinderen 0:8d87bc453349 177 NPMODE_ERROR, /* return an error */
ninoderkinderen 0:8d87bc453349 178 NPMODE_QUEUE /* save it up for later. */
ninoderkinderen 0:8d87bc453349 179 };
ninoderkinderen 0:8d87bc453349 180
ninoderkinderen 0:8d87bc453349 181 /*
ninoderkinderen 0:8d87bc453349 182 * Inline versions of get/put char/short/long.
ninoderkinderen 0:8d87bc453349 183 * Pointer is advanced; we assume that both arguments
ninoderkinderen 0:8d87bc453349 184 * are lvalues and will already be in registers.
ninoderkinderen 0:8d87bc453349 185 * cp MUST be u_char *.
ninoderkinderen 0:8d87bc453349 186 */
ninoderkinderen 0:8d87bc453349 187 #define GETCHAR(c, cp) { \
ninoderkinderen 0:8d87bc453349 188 (c) = *(cp)++; \
ninoderkinderen 0:8d87bc453349 189 }
ninoderkinderen 0:8d87bc453349 190 #define PUTCHAR(c, cp) { \
ninoderkinderen 0:8d87bc453349 191 *(cp)++ = (u_char) (c); \
ninoderkinderen 0:8d87bc453349 192 }
ninoderkinderen 0:8d87bc453349 193
ninoderkinderen 0:8d87bc453349 194
ninoderkinderen 0:8d87bc453349 195 #define GETSHORT(s, cp) { \
ninoderkinderen 0:8d87bc453349 196 (s) = *(cp); (cp)++; (s) <<= 8; \
ninoderkinderen 0:8d87bc453349 197 (s) |= *(cp); (cp)++; \
ninoderkinderen 0:8d87bc453349 198 }
ninoderkinderen 0:8d87bc453349 199 #define PUTSHORT(s, cp) { \
ninoderkinderen 0:8d87bc453349 200 *(cp)++ = (u_char) ((s) >> 8); \
ninoderkinderen 0:8d87bc453349 201 *(cp)++ = (u_char) (s & 0xff); \
ninoderkinderen 0:8d87bc453349 202 }
ninoderkinderen 0:8d87bc453349 203
ninoderkinderen 0:8d87bc453349 204 #define GETLONG(l, cp) { \
ninoderkinderen 0:8d87bc453349 205 (l) = *(cp); (cp)++; (l) <<= 8; \
ninoderkinderen 0:8d87bc453349 206 (l) |= *(cp); (cp)++; (l) <<= 8; \
ninoderkinderen 0:8d87bc453349 207 (l) |= *(cp); (cp)++; (l) <<= 8; \
ninoderkinderen 0:8d87bc453349 208 (l) |= *(cp); (cp)++; \
ninoderkinderen 0:8d87bc453349 209 }
ninoderkinderen 0:8d87bc453349 210 #define PUTLONG(l, cp) { \
ninoderkinderen 0:8d87bc453349 211 *(cp)++ = (u_char) ((l) >> 24); \
ninoderkinderen 0:8d87bc453349 212 *(cp)++ = (u_char) ((l) >> 16); \
ninoderkinderen 0:8d87bc453349 213 *(cp)++ = (u_char) ((l) >> 8); \
ninoderkinderen 0:8d87bc453349 214 *(cp)++ = (u_char) (l); \
ninoderkinderen 0:8d87bc453349 215 }
ninoderkinderen 0:8d87bc453349 216
ninoderkinderen 0:8d87bc453349 217
ninoderkinderen 0:8d87bc453349 218 #define INCPTR(n, cp) ((cp) += (n))
ninoderkinderen 0:8d87bc453349 219 #define DECPTR(n, cp) ((cp) -= (n))
ninoderkinderen 0:8d87bc453349 220
ninoderkinderen 0:8d87bc453349 221 #define BCMP(s0, s1, l) memcmp((u_char *)(s0), (u_char *)(s1), (l))
ninoderkinderen 0:8d87bc453349 222 #define BCOPY(s, d, l) MEMCPY((d), (s), (l))
ninoderkinderen 0:8d87bc453349 223 #define BZERO(s, n) memset(s, 0, n)
ninoderkinderen 0:8d87bc453349 224
ninoderkinderen 0:8d87bc453349 225 #if PPP_DEBUG
ninoderkinderen 0:8d87bc453349 226 #define PRINTMSG(m, l) { m[l] = '\0'; LWIP_DEBUGF(LOG_INFO, ("Remote message: %s\n", m)); }
ninoderkinderen 0:8d87bc453349 227 #else /* PPP_DEBUG */
ninoderkinderen 0:8d87bc453349 228 #define PRINTMSG(m, l)
ninoderkinderen 0:8d87bc453349 229 #endif /* PPP_DEBUG */
ninoderkinderen 0:8d87bc453349 230
ninoderkinderen 0:8d87bc453349 231 /*
ninoderkinderen 0:8d87bc453349 232 * MAKEHEADER - Add PPP Header fields to a packet.
ninoderkinderen 0:8d87bc453349 233 */
ninoderkinderen 0:8d87bc453349 234 #define MAKEHEADER(p, t) { \
ninoderkinderen 0:8d87bc453349 235 PUTCHAR(PPP_ALLSTATIONS, p); \
ninoderkinderen 0:8d87bc453349 236 PUTCHAR(PPP_UI, p); \
ninoderkinderen 0:8d87bc453349 237 PUTSHORT(t, p); }
ninoderkinderen 0:8d87bc453349 238
ninoderkinderen 0:8d87bc453349 239 /*************************
ninoderkinderen 0:8d87bc453349 240 *** PUBLIC DEFINITIONS ***
ninoderkinderen 0:8d87bc453349 241 *************************/
ninoderkinderen 0:8d87bc453349 242
ninoderkinderen 0:8d87bc453349 243 /* Error codes. */
ninoderkinderen 0:8d87bc453349 244 #define PPPERR_NONE 0 /* No error. */
ninoderkinderen 0:8d87bc453349 245 #define PPPERR_PARAM -1 /* Invalid parameter. */
ninoderkinderen 0:8d87bc453349 246 #define PPPERR_OPEN -2 /* Unable to open PPP session. */
ninoderkinderen 0:8d87bc453349 247 #define PPPERR_DEVICE -3 /* Invalid I/O device for PPP. */
ninoderkinderen 0:8d87bc453349 248 #define PPPERR_ALLOC -4 /* Unable to allocate resources. */
ninoderkinderen 0:8d87bc453349 249 #define PPPERR_USER -5 /* User interrupt. */
ninoderkinderen 0:8d87bc453349 250 #define PPPERR_CONNECT -6 /* Connection lost. */
ninoderkinderen 0:8d87bc453349 251 #define PPPERR_AUTHFAIL -7 /* Failed authentication challenge. */
ninoderkinderen 0:8d87bc453349 252 #define PPPERR_PROTOCOL -8 /* Failed to meet protocol. */
ninoderkinderen 0:8d87bc453349 253
ninoderkinderen 0:8d87bc453349 254 /*
ninoderkinderen 0:8d87bc453349 255 * PPP IOCTL commands.
ninoderkinderen 0:8d87bc453349 256 */
ninoderkinderen 0:8d87bc453349 257 /*
ninoderkinderen 0:8d87bc453349 258 * Get the up status - 0 for down, non-zero for up. The argument must
ninoderkinderen 0:8d87bc453349 259 * point to an int.
ninoderkinderen 0:8d87bc453349 260 */
ninoderkinderen 0:8d87bc453349 261 #define PPPCTLG_UPSTATUS 100 /* Get the up status - 0 down else up */
ninoderkinderen 0:8d87bc453349 262 #define PPPCTLS_ERRCODE 101 /* Set the error code */
ninoderkinderen 0:8d87bc453349 263 #define PPPCTLG_ERRCODE 102 /* Get the error code */
ninoderkinderen 0:8d87bc453349 264 #define PPPCTLG_FD 103 /* Get the fd associated with the ppp */
ninoderkinderen 0:8d87bc453349 265
ninoderkinderen 0:8d87bc453349 266 /************************
ninoderkinderen 0:8d87bc453349 267 *** PUBLIC DATA TYPES ***
ninoderkinderen 0:8d87bc453349 268 ************************/
ninoderkinderen 0:8d87bc453349 269
ninoderkinderen 0:8d87bc453349 270 /*
ninoderkinderen 0:8d87bc453349 271 * The following struct gives the addresses of procedures to call
ninoderkinderen 0:8d87bc453349 272 * for a particular protocol.
ninoderkinderen 0:8d87bc453349 273 */
ninoderkinderen 0:8d87bc453349 274 struct protent {
ninoderkinderen 0:8d87bc453349 275 u_short protocol; /* PPP protocol number */
ninoderkinderen 0:8d87bc453349 276 /* Initialization procedure */
ninoderkinderen 0:8d87bc453349 277 void (*init) (int unit);
ninoderkinderen 0:8d87bc453349 278 /* Process a received packet */
ninoderkinderen 0:8d87bc453349 279 void (*input) (int unit, u_char *pkt, int len);
ninoderkinderen 0:8d87bc453349 280 /* Process a received protocol-reject */
ninoderkinderen 0:8d87bc453349 281 void (*protrej) (int unit);
ninoderkinderen 0:8d87bc453349 282 /* Lower layer has come up */
ninoderkinderen 0:8d87bc453349 283 void (*lowerup) (int unit);
ninoderkinderen 0:8d87bc453349 284 /* Lower layer has gone down */
ninoderkinderen 0:8d87bc453349 285 void (*lowerdown) (int unit);
ninoderkinderen 0:8d87bc453349 286 /* Open the protocol */
ninoderkinderen 0:8d87bc453349 287 void (*open) (int unit);
ninoderkinderen 0:8d87bc453349 288 /* Close the protocol */
ninoderkinderen 0:8d87bc453349 289 void (*close) (int unit, char *reason);
ninoderkinderen 0:8d87bc453349 290 #if PPP_ADDITIONAL_CALLBACKS
ninoderkinderen 0:8d87bc453349 291 /* Print a packet in readable form */
ninoderkinderen 0:8d87bc453349 292 int (*printpkt) (u_char *pkt, int len,
ninoderkinderen 0:8d87bc453349 293 void (*printer) (void *, char *, ...),
ninoderkinderen 0:8d87bc453349 294 void *arg);
ninoderkinderen 0:8d87bc453349 295 /* Process a received data packet */
ninoderkinderen 0:8d87bc453349 296 void (*datainput) (int unit, u_char *pkt, int len);
ninoderkinderen 0:8d87bc453349 297 #endif /* PPP_ADDITIONAL_CALLBACKS */
ninoderkinderen 0:8d87bc453349 298 int enabled_flag; /* 0 if protocol is disabled */
ninoderkinderen 0:8d87bc453349 299 char *name; /* Text name of protocol */
ninoderkinderen 0:8d87bc453349 300 #if PPP_ADDITIONAL_CALLBACKS
ninoderkinderen 0:8d87bc453349 301 /* Check requested options, assign defaults */
ninoderkinderen 0:8d87bc453349 302 void (*check_options) (u_long);
ninoderkinderen 0:8d87bc453349 303 /* Configure interface for demand-dial */
ninoderkinderen 0:8d87bc453349 304 int (*demand_conf) (int unit);
ninoderkinderen 0:8d87bc453349 305 /* Say whether to bring up link for this pkt */
ninoderkinderen 0:8d87bc453349 306 int (*active_pkt) (u_char *pkt, int len);
ninoderkinderen 0:8d87bc453349 307 #endif /* PPP_ADDITIONAL_CALLBACKS */
ninoderkinderen 0:8d87bc453349 308 };
ninoderkinderen 0:8d87bc453349 309
ninoderkinderen 0:8d87bc453349 310 /*
ninoderkinderen 0:8d87bc453349 311 * The following structure records the time in seconds since
ninoderkinderen 0:8d87bc453349 312 * the last NP packet was sent or received.
ninoderkinderen 0:8d87bc453349 313 */
ninoderkinderen 0:8d87bc453349 314 struct ppp_idle {
ninoderkinderen 0:8d87bc453349 315 u_short xmit_idle; /* seconds since last NP packet sent */
ninoderkinderen 0:8d87bc453349 316 u_short recv_idle; /* seconds since last NP packet received */
ninoderkinderen 0:8d87bc453349 317 };
ninoderkinderen 0:8d87bc453349 318
ninoderkinderen 0:8d87bc453349 319 struct ppp_settings {
ninoderkinderen 0:8d87bc453349 320
ninoderkinderen 0:8d87bc453349 321 u_int disable_defaultip : 1; /* Don't use hostname for default IP addrs */
ninoderkinderen 0:8d87bc453349 322 u_int auth_required : 1; /* Peer is required to authenticate */
ninoderkinderen 0:8d87bc453349 323 u_int explicit_remote : 1; /* remote_name specified with remotename opt */
ninoderkinderen 0:8d87bc453349 324 u_int refuse_pap : 1; /* Don't wanna auth. ourselves with PAP */
ninoderkinderen 0:8d87bc453349 325 u_int refuse_chap : 1; /* Don't wanna auth. ourselves with CHAP */
ninoderkinderen 0:8d87bc453349 326 u_int usehostname : 1; /* Use hostname for our_name */
ninoderkinderen 0:8d87bc453349 327 u_int usepeerdns : 1; /* Ask peer for DNS adds */
ninoderkinderen 0:8d87bc453349 328
ninoderkinderen 0:8d87bc453349 329 u_short idle_time_limit; /* Shut down link if idle for this long */
ninoderkinderen 0:8d87bc453349 330 int maxconnect; /* Maximum connect time (seconds) */
ninoderkinderen 0:8d87bc453349 331
ninoderkinderen 0:8d87bc453349 332 char user [MAXNAMELEN + 1]; /* Username for PAP */
ninoderkinderen 0:8d87bc453349 333 char passwd [MAXSECRETLEN + 1]; /* Password for PAP, secret for CHAP */
ninoderkinderen 0:8d87bc453349 334 char our_name [MAXNAMELEN + 1]; /* Our name for authentication purposes */
ninoderkinderen 0:8d87bc453349 335 char remote_name[MAXNAMELEN + 1]; /* Peer's name for authentication */
ninoderkinderen 0:8d87bc453349 336 };
ninoderkinderen 0:8d87bc453349 337
ninoderkinderen 0:8d87bc453349 338 struct ppp_addrs {
ninoderkinderen 0:8d87bc453349 339 ip_addr_t our_ipaddr, his_ipaddr, netmask, dns1, dns2;
ninoderkinderen 0:8d87bc453349 340 };
ninoderkinderen 0:8d87bc453349 341
ninoderkinderen 0:8d87bc453349 342 /*****************************
ninoderkinderen 0:8d87bc453349 343 *** PUBLIC DATA STRUCTURES ***
ninoderkinderen 0:8d87bc453349 344 *****************************/
ninoderkinderen 0:8d87bc453349 345
ninoderkinderen 0:8d87bc453349 346 /* Buffers for outgoing packets. */
ninoderkinderen 0:8d87bc453349 347 extern u_char outpacket_buf[NUM_PPP][PPP_MRU+PPP_HDRLEN];
ninoderkinderen 0:8d87bc453349 348
ninoderkinderen 0:8d87bc453349 349 extern struct ppp_settings ppp_settings;
ninoderkinderen 0:8d87bc453349 350
ninoderkinderen 0:8d87bc453349 351 extern struct protent *ppp_protocols[]; /* Table of pointers to supported protocols */
ninoderkinderen 0:8d87bc453349 352
ninoderkinderen 0:8d87bc453349 353
ninoderkinderen 0:8d87bc453349 354 /***********************
ninoderkinderen 0:8d87bc453349 355 *** PUBLIC FUNCTIONS ***
ninoderkinderen 0:8d87bc453349 356 ***********************/
ninoderkinderen 0:8d87bc453349 357
ninoderkinderen 0:8d87bc453349 358 /* Initialize the PPP subsystem. */
ninoderkinderen 0:8d87bc453349 359 void pppInit(void);
ninoderkinderen 0:8d87bc453349 360
ninoderkinderen 0:8d87bc453349 361 /* Warning: Using PPPAUTHTYPE_ANY might have security consequences.
ninoderkinderen 0:8d87bc453349 362 * RFC 1994 says:
ninoderkinderen 0:8d87bc453349 363 *
ninoderkinderen 0:8d87bc453349 364 * In practice, within or associated with each PPP server, there is a
ninoderkinderen 0:8d87bc453349 365 * database which associates "user" names with authentication
ninoderkinderen 0:8d87bc453349 366 * information ("secrets"). It is not anticipated that a particular
ninoderkinderen 0:8d87bc453349 367 * named user would be authenticated by multiple methods. This would
ninoderkinderen 0:8d87bc453349 368 * make the user vulnerable to attacks which negotiate the least secure
ninoderkinderen 0:8d87bc453349 369 * method from among a set (such as PAP rather than CHAP). If the same
ninoderkinderen 0:8d87bc453349 370 * secret was used, PAP would reveal the secret to be used later with
ninoderkinderen 0:8d87bc453349 371 * CHAP.
ninoderkinderen 0:8d87bc453349 372 *
ninoderkinderen 0:8d87bc453349 373 * Instead, for each user name there should be an indication of exactly
ninoderkinderen 0:8d87bc453349 374 * one method used to authenticate that user name. If a user needs to
ninoderkinderen 0:8d87bc453349 375 * make use of different authentication methods under different
ninoderkinderen 0:8d87bc453349 376 * circumstances, then distinct user names SHOULD be employed, each of
ninoderkinderen 0:8d87bc453349 377 * which identifies exactly one authentication method.
ninoderkinderen 0:8d87bc453349 378 *
ninoderkinderen 0:8d87bc453349 379 */
ninoderkinderen 0:8d87bc453349 380 enum pppAuthType {
ninoderkinderen 0:8d87bc453349 381 PPPAUTHTYPE_NONE,
ninoderkinderen 0:8d87bc453349 382 PPPAUTHTYPE_ANY,
ninoderkinderen 0:8d87bc453349 383 PPPAUTHTYPE_PAP,
ninoderkinderen 0:8d87bc453349 384 PPPAUTHTYPE_CHAP
ninoderkinderen 0:8d87bc453349 385 };
ninoderkinderen 0:8d87bc453349 386
ninoderkinderen 0:8d87bc453349 387 void pppSetAuth(enum pppAuthType authType, const char *user, const char *passwd);
ninoderkinderen 0:8d87bc453349 388
ninoderkinderen 0:8d87bc453349 389 /*
ninoderkinderen 0:8d87bc453349 390 * Open a new PPP connection using the given serial I/O device.
ninoderkinderen 0:8d87bc453349 391 * This initializes the PPP control block but does not
ninoderkinderen 0:8d87bc453349 392 * attempt to negotiate the LCP session.
ninoderkinderen 0:8d87bc453349 393 * Return a new PPP connection descriptor on success or
ninoderkinderen 0:8d87bc453349 394 * an error code (negative) on failure.
ninoderkinderen 0:8d87bc453349 395 */
ninoderkinderen 0:8d87bc453349 396 int pppOverSerialOpen(sio_fd_t fd, void (*linkStatusCB)(void *ctx, int errCode, void *arg), void *linkStatusCtx);
ninoderkinderen 0:8d87bc453349 397
ninoderkinderen 0:8d87bc453349 398 /*
ninoderkinderen 0:8d87bc453349 399 * Open a new PPP Over Ethernet (PPPOE) connection.
ninoderkinderen 0:8d87bc453349 400 */
ninoderkinderen 0:8d87bc453349 401 int pppOverEthernetOpen(struct netif *ethif, const char *service_name, const char *concentrator_name, void (*linkStatusCB)(void *ctx, int errCode, void *arg), void *linkStatusCtx);
ninoderkinderen 0:8d87bc453349 402
ninoderkinderen 0:8d87bc453349 403 /* for source code compatibility */
ninoderkinderen 0:8d87bc453349 404 #define pppOpen(fd,cb,ls) pppOverSerialOpen(fd,cb,ls)
ninoderkinderen 0:8d87bc453349 405
ninoderkinderen 0:8d87bc453349 406 /*
ninoderkinderen 0:8d87bc453349 407 * Close a PPP connection and release the descriptor.
ninoderkinderen 0:8d87bc453349 408 * Any outstanding packets in the queues are dropped.
ninoderkinderen 0:8d87bc453349 409 * Return 0 on success, an error code on failure.
ninoderkinderen 0:8d87bc453349 410 */
ninoderkinderen 0:8d87bc453349 411 int pppClose(int pd);
ninoderkinderen 0:8d87bc453349 412
ninoderkinderen 0:8d87bc453349 413 /*
ninoderkinderen 0:8d87bc453349 414 * Indicate to the PPP process that the line has disconnected.
ninoderkinderen 0:8d87bc453349 415 */
ninoderkinderen 0:8d87bc453349 416 void pppSigHUP(int pd);
ninoderkinderen 0:8d87bc453349 417
ninoderkinderen 0:8d87bc453349 418 /*
ninoderkinderen 0:8d87bc453349 419 * Get and set parameters for the given connection.
ninoderkinderen 0:8d87bc453349 420 * Return 0 on success, an error code on failure.
ninoderkinderen 0:8d87bc453349 421 */
ninoderkinderen 0:8d87bc453349 422 int pppIOCtl(int pd, int cmd, void *arg);
ninoderkinderen 0:8d87bc453349 423
ninoderkinderen 0:8d87bc453349 424 /*
ninoderkinderen 0:8d87bc453349 425 * Return the Maximum Transmission Unit for the given PPP connection.
ninoderkinderen 0:8d87bc453349 426 */
ninoderkinderen 0:8d87bc453349 427 u_short pppMTU(int pd);
ninoderkinderen 0:8d87bc453349 428
ninoderkinderen 0:8d87bc453349 429 /*
ninoderkinderen 0:8d87bc453349 430 * Write n characters to a ppp link.
ninoderkinderen 0:8d87bc453349 431 * RETURN: >= 0 Number of characters written, -1 Failed to write to device.
ninoderkinderen 0:8d87bc453349 432 */
ninoderkinderen 0:8d87bc453349 433 int pppWrite(int pd, const u_char *s, int n);
ninoderkinderen 0:8d87bc453349 434
ninoderkinderen 0:8d87bc453349 435 void pppInProcOverEthernet(int pd, struct pbuf *pb);
ninoderkinderen 0:8d87bc453349 436
ninoderkinderen 0:8d87bc453349 437 struct pbuf *pppSingleBuf(struct pbuf *p);
ninoderkinderen 0:8d87bc453349 438
ninoderkinderen 0:8d87bc453349 439 void pppLinkTerminated(int pd);
ninoderkinderen 0:8d87bc453349 440
ninoderkinderen 0:8d87bc453349 441 void pppLinkDown(int pd);
ninoderkinderen 0:8d87bc453349 442
ninoderkinderen 0:8d87bc453349 443 void pppos_input(int pd, u_char* data, int len);
ninoderkinderen 0:8d87bc453349 444
ninoderkinderen 0:8d87bc453349 445 /* Configure i/f transmit parameters */
ninoderkinderen 0:8d87bc453349 446 void ppp_send_config (int, u16_t, u32_t, int, int);
ninoderkinderen 0:8d87bc453349 447 /* Set extended transmit ACCM */
ninoderkinderen 0:8d87bc453349 448 void ppp_set_xaccm (int, ext_accm *);
ninoderkinderen 0:8d87bc453349 449 /* Configure i/f receive parameters */
ninoderkinderen 0:8d87bc453349 450 void ppp_recv_config (int, int, u32_t, int, int);
ninoderkinderen 0:8d87bc453349 451 /* Find out how long link has been idle */
ninoderkinderen 0:8d87bc453349 452 int get_idle_time (int, struct ppp_idle *);
ninoderkinderen 0:8d87bc453349 453
ninoderkinderen 0:8d87bc453349 454 /* Configure VJ TCP header compression */
ninoderkinderen 0:8d87bc453349 455 int sifvjcomp (int, int, u8_t, u8_t);
ninoderkinderen 0:8d87bc453349 456 /* Configure i/f down (for IP) */
ninoderkinderen 0:8d87bc453349 457 int sifup (int);
ninoderkinderen 0:8d87bc453349 458 /* Set mode for handling packets for proto */
ninoderkinderen 0:8d87bc453349 459 int sifnpmode (int u, int proto, enum NPmode mode);
ninoderkinderen 0:8d87bc453349 460 /* Configure i/f down (for IP) */
ninoderkinderen 0:8d87bc453349 461 int sifdown (int);
ninoderkinderen 0:8d87bc453349 462 /* Configure IP addresses for i/f */
ninoderkinderen 0:8d87bc453349 463 int sifaddr (int, u32_t, u32_t, u32_t, u32_t, u32_t);
ninoderkinderen 0:8d87bc453349 464 /* Reset i/f IP addresses */
ninoderkinderen 0:8d87bc453349 465 int cifaddr (int, u32_t, u32_t);
ninoderkinderen 0:8d87bc453349 466 /* Create default route through i/f */
ninoderkinderen 0:8d87bc453349 467 int sifdefaultroute (int, u32_t, u32_t);
ninoderkinderen 0:8d87bc453349 468 /* Delete default route through i/f */
ninoderkinderen 0:8d87bc453349 469 int cifdefaultroute (int, u32_t, u32_t);
ninoderkinderen 0:8d87bc453349 470
ninoderkinderen 0:8d87bc453349 471 /* Get appropriate netmask for address */
ninoderkinderen 0:8d87bc453349 472 u32_t GetMask (u32_t);
ninoderkinderen 0:8d87bc453349 473
ninoderkinderen 0:8d87bc453349 474 #if LWIP_NETIF_STATUS_CALLBACK
ninoderkinderen 0:8d87bc453349 475 void ppp_set_netif_statuscallback(int pd, netif_status_callback_fn status_callback);
ninoderkinderen 0:8d87bc453349 476 #endif /* LWIP_NETIF_STATUS_CALLBACK */
ninoderkinderen 0:8d87bc453349 477 #if LWIP_NETIF_LINK_CALLBACK
ninoderkinderen 0:8d87bc453349 478 void ppp_set_netif_linkcallback(int pd, netif_status_callback_fn link_callback);
ninoderkinderen 0:8d87bc453349 479 #endif /* LWIP_NETIF_LINK_CALLBACK */
ninoderkinderen 0:8d87bc453349 480
ninoderkinderen 0:8d87bc453349 481 #endif /* PPP_SUPPORT */
ninoderkinderen 0:8d87bc453349 482
ninoderkinderen 0:8d87bc453349 483 #endif /* PPP_H */