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EthernetNetIf/LPC1768/lwip/netif/ppp/ppp.h@1:3be7b7d050f4, 2014-12-02 (annotated)

Committer:
mbedalvaro
Date:
Tue Dec 02 08:29:59 2014 +0000
Revision:
1:3be7b7d050f4
Parent:
0:df6fdd9b99f0 
updated

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbedalvaro 0:df6fdd9b99f0 1 /*****************************************************************************
mbedalvaro 0:df6fdd9b99f0 2 * ppp.h - Network Point to Point Protocol header file.
mbedalvaro 0:df6fdd9b99f0 3 *
mbedalvaro 0:df6fdd9b99f0 4 * Copyright (c) 2003 by Marc Boucher, Services Informatiques (MBSI) inc.
mbedalvaro 0:df6fdd9b99f0 5 * portions Copyright (c) 1997 Global Election Systems Inc.
mbedalvaro 0:df6fdd9b99f0 6 *
mbedalvaro 0:df6fdd9b99f0 7 * The authors hereby grant permission to use, copy, modify, distribute,
mbedalvaro 0:df6fdd9b99f0 8 * and license this software and its documentation for any purpose, provided
mbedalvaro 0:df6fdd9b99f0 9 * that existing copyright notices are retained in all copies and that this
mbedalvaro 0:df6fdd9b99f0 10 * notice and the following disclaimer are included verbatim in any
mbedalvaro 0:df6fdd9b99f0 11 * distributions. No written agreement, license, or royalty fee is required
mbedalvaro 0:df6fdd9b99f0 12 * for any of the authorized uses.
mbedalvaro 0:df6fdd9b99f0 13 *
mbedalvaro 0:df6fdd9b99f0 14 * THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS *AS IS* AND ANY EXPRESS OR
mbedalvaro 0:df6fdd9b99f0 15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
mbedalvaro 0:df6fdd9b99f0 16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
mbedalvaro 0:df6fdd9b99f0 17 * IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
mbedalvaro 0:df6fdd9b99f0 18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
mbedalvaro 0:df6fdd9b99f0 19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
mbedalvaro 0:df6fdd9b99f0 20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
mbedalvaro 0:df6fdd9b99f0 21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
mbedalvaro 0:df6fdd9b99f0 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
mbedalvaro 0:df6fdd9b99f0 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbedalvaro 0:df6fdd9b99f0 24 *
mbedalvaro 0:df6fdd9b99f0 25 ******************************************************************************
mbedalvaro 0:df6fdd9b99f0 26 * REVISION HISTORY
mbedalvaro 0:df6fdd9b99f0 27 *
mbedalvaro 0:df6fdd9b99f0 28 * 03-01-01 Marc Boucher <marc@mbsi.ca>
mbedalvaro 0:df6fdd9b99f0 29 * Ported to lwIP.
mbedalvaro 0:df6fdd9b99f0 30 * 97-11-05 Guy Lancaster <glanca@gesn.com>, Global Election Systems Inc.
mbedalvaro 0:df6fdd9b99f0 31 * Original derived from BSD codes.
mbedalvaro 0:df6fdd9b99f0 32 *****************************************************************************/
mbedalvaro 0:df6fdd9b99f0 33
mbedalvaro 0:df6fdd9b99f0 34 #ifndef PPP_H
mbedalvaro 0:df6fdd9b99f0 35 #define PPP_H
mbedalvaro 0:df6fdd9b99f0 36
mbedalvaro 0:df6fdd9b99f0 37 #include "lwip/opt.h"
mbedalvaro 0:df6fdd9b99f0 38
mbedalvaro 0:df6fdd9b99f0 39 #if PPP_SUPPORT /* don't build if not configured for use in lwipopts.h */
mbedalvaro 0:df6fdd9b99f0 40
mbedalvaro 0:df6fdd9b99f0 41 #include "lwip/def.h"
mbedalvaro 0:df6fdd9b99f0 42 #include "lwip/sio.h"
mbedalvaro 0:df6fdd9b99f0 43 #include "lwip/stats.h"
mbedalvaro 0:df6fdd9b99f0 44 #include "lwip/mem.h"
mbedalvaro 0:df6fdd9b99f0 45 #include "lwip/netif.h"
mbedalvaro 0:df6fdd9b99f0 46 #include "lwip/sys.h"
mbedalvaro 0:df6fdd9b99f0 47 #include "lwip/timers.h"
mbedalvaro 0:df6fdd9b99f0 48
mbedalvaro 0:df6fdd9b99f0 49 /** Some defines for code we skip compared to the original pppd.
mbedalvaro 0:df6fdd9b99f0 50 * These are just here to minimise the use of the ugly "#if 0". */
mbedalvaro 0:df6fdd9b99f0 51 #define PPP_ADDITIONAL_CALLBACKS 0
mbedalvaro 0:df6fdd9b99f0 52
mbedalvaro 0:df6fdd9b99f0 53 /** Some error checks to test for unsupported code */
mbedalvaro 0:df6fdd9b99f0 54 #if CBCP_SUPPORT
mbedalvaro 0:df6fdd9b99f0 55 #error "CBCP is not supported in lwIP PPP"
mbedalvaro 0:df6fdd9b99f0 56 #endif
mbedalvaro 0:df6fdd9b99f0 57 #if CCP_SUPPORT
mbedalvaro 0:df6fdd9b99f0 58 #error "CCP is not supported in lwIP PPP"
mbedalvaro 0:df6fdd9b99f0 59 #endif
mbedalvaro 0:df6fdd9b99f0 60
mbedalvaro 0:df6fdd9b99f0 61 /*
mbedalvaro 0:df6fdd9b99f0 62 * pppd.h - PPP daemon global declarations.
mbedalvaro 0:df6fdd9b99f0 63 *
mbedalvaro 0:df6fdd9b99f0 64 * Copyright (c) 1989 Carnegie Mellon University.
mbedalvaro 0:df6fdd9b99f0 65 * All rights reserved.
mbedalvaro 0:df6fdd9b99f0 66 *
mbedalvaro 0:df6fdd9b99f0 67 * Redistribution and use in source and binary forms are permitted
mbedalvaro 0:df6fdd9b99f0 68 * provided that the above copyright notice and this paragraph are
mbedalvaro 0:df6fdd9b99f0 69 * duplicated in all such forms and that any documentation,
mbedalvaro 0:df6fdd9b99f0 70 * advertising materials, and other materials related to such
mbedalvaro 0:df6fdd9b99f0 71 * distribution and use acknowledge that the software was developed
mbedalvaro 0:df6fdd9b99f0 72 * by Carnegie Mellon University. The name of the
mbedalvaro 0:df6fdd9b99f0 73 * University may not be used to endorse or promote products derived
mbedalvaro 0:df6fdd9b99f0 74 * from this software without specific prior written permission.
mbedalvaro 0:df6fdd9b99f0 75 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
mbedalvaro 0:df6fdd9b99f0 76 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
mbedalvaro 0:df6fdd9b99f0 77 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
mbedalvaro 0:df6fdd9b99f0 78 *
mbedalvaro 0:df6fdd9b99f0 79 */
mbedalvaro 0:df6fdd9b99f0 80 /*
mbedalvaro 0:df6fdd9b99f0 81 * ppp_defs.h - PPP definitions.
mbedalvaro 0:df6fdd9b99f0 82 *
mbedalvaro 0:df6fdd9b99f0 83 * Copyright (c) 1994 The Australian National University.
mbedalvaro 0:df6fdd9b99f0 84 * All rights reserved.
mbedalvaro 0:df6fdd9b99f0 85 *
mbedalvaro 0:df6fdd9b99f0 86 * Permission to use, copy, modify, and distribute this software and its
mbedalvaro 0:df6fdd9b99f0 87 * documentation is hereby granted, provided that the above copyright
mbedalvaro 0:df6fdd9b99f0 88 * notice appears in all copies. This software is provided without any
mbedalvaro 0:df6fdd9b99f0 89 * warranty, express or implied. The Australian National University
mbedalvaro 0:df6fdd9b99f0 90 * makes no representations about the suitability of this software for
mbedalvaro 0:df6fdd9b99f0 91 * any purpose.
mbedalvaro 0:df6fdd9b99f0 92 *
mbedalvaro 0:df6fdd9b99f0 93 * IN NO EVENT SHALL THE AUSTRALIAN NATIONAL UNIVERSITY BE LIABLE TO ANY
mbedalvaro 0:df6fdd9b99f0 94 * PARTY FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
mbedalvaro 0:df6fdd9b99f0 95 * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF
mbedalvaro 0:df6fdd9b99f0 96 * THE AUSTRALIAN NATIONAL UNIVERSITY HAVE BEEN ADVISED OF THE POSSIBILITY
mbedalvaro 0:df6fdd9b99f0 97 * OF SUCH DAMAGE.
mbedalvaro 0:df6fdd9b99f0 98 *
mbedalvaro 0:df6fdd9b99f0 99 * THE AUSTRALIAN NATIONAL UNIVERSITY SPECIFICALLY DISCLAIMS ANY WARRANTIES,
mbedalvaro 0:df6fdd9b99f0 100 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
mbedalvaro 0:df6fdd9b99f0 101 * AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
mbedalvaro 0:df6fdd9b99f0 102 * ON AN "AS IS" BASIS, AND THE AUSTRALIAN NATIONAL UNIVERSITY HAS NO
mbedalvaro 0:df6fdd9b99f0 103 * OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS,
mbedalvaro 0:df6fdd9b99f0 104 * OR MODIFICATIONS.
mbedalvaro 0:df6fdd9b99f0 105 */
mbedalvaro 0:df6fdd9b99f0 106
mbedalvaro 0:df6fdd9b99f0 107 #define TIMEOUT(f, a, t) do { sys_untimeout((f), (a)); sys_timeout((t)*1000, (f), (a)); } while(0)
mbedalvaro 0:df6fdd9b99f0 108 #define UNTIMEOUT(f, a) sys_untimeout((f), (a))
mbedalvaro 0:df6fdd9b99f0 109
mbedalvaro 0:df6fdd9b99f0 110
mbedalvaro 0:df6fdd9b99f0 111 #ifndef __u_char_defined
mbedalvaro 0:df6fdd9b99f0 112
mbedalvaro 0:df6fdd9b99f0 113 /* Type definitions for BSD code. */
mbedalvaro 0:df6fdd9b99f0 114 typedef unsigned long u_long;
mbedalvaro 0:df6fdd9b99f0 115 typedef unsigned int u_int;
mbedalvaro 0:df6fdd9b99f0 116 typedef unsigned short u_short;
mbedalvaro 0:df6fdd9b99f0 117 typedef unsigned char u_char;
mbedalvaro 0:df6fdd9b99f0 118
mbedalvaro 0:df6fdd9b99f0 119 #endif
mbedalvaro 0:df6fdd9b99f0 120
mbedalvaro 0:df6fdd9b99f0 121 /*
mbedalvaro 0:df6fdd9b99f0 122 * Constants and structures defined by the internet system,
mbedalvaro 0:df6fdd9b99f0 123 * Per RFC 790, September 1981, and numerous additions.
mbedalvaro 0:df6fdd9b99f0 124 */
mbedalvaro 0:df6fdd9b99f0 125
mbedalvaro 0:df6fdd9b99f0 126 /*
mbedalvaro 0:df6fdd9b99f0 127 * The basic PPP frame.
mbedalvaro 0:df6fdd9b99f0 128 */
mbedalvaro 0:df6fdd9b99f0 129 #define PPP_HDRLEN 4 /* octets for standard ppp header */
mbedalvaro 0:df6fdd9b99f0 130 #define PPP_FCSLEN 2 /* octets for FCS */
mbedalvaro 0:df6fdd9b99f0 131
mbedalvaro 0:df6fdd9b99f0 132
mbedalvaro 0:df6fdd9b99f0 133 /*
mbedalvaro 0:df6fdd9b99f0 134 * Significant octet values.
mbedalvaro 0:df6fdd9b99f0 135 */
mbedalvaro 0:df6fdd9b99f0 136 #define PPP_ALLSTATIONS 0xff /* All-Stations broadcast address */
mbedalvaro 0:df6fdd9b99f0 137 #define PPP_UI 0x03 /* Unnumbered Information */
mbedalvaro 0:df6fdd9b99f0 138 #define PPP_FLAG 0x7e /* Flag Sequence */
mbedalvaro 0:df6fdd9b99f0 139 #define PPP_ESCAPE 0x7d /* Asynchronous Control Escape */
mbedalvaro 0:df6fdd9b99f0 140 #define PPP_TRANS 0x20 /* Asynchronous transparency modifier */
mbedalvaro 0:df6fdd9b99f0 141
mbedalvaro 0:df6fdd9b99f0 142 /*
mbedalvaro 0:df6fdd9b99f0 143 * Protocol field values.
mbedalvaro 0:df6fdd9b99f0 144 */
mbedalvaro 0:df6fdd9b99f0 145 #define PPP_IP 0x21 /* Internet Protocol */
mbedalvaro 0:df6fdd9b99f0 146 #define PPP_AT 0x29 /* AppleTalk Protocol */
mbedalvaro 0:df6fdd9b99f0 147 #define PPP_VJC_COMP 0x2d /* VJ compressed TCP */
mbedalvaro 0:df6fdd9b99f0 148 #define PPP_VJC_UNCOMP 0x2f /* VJ uncompressed TCP */
mbedalvaro 0:df6fdd9b99f0 149 #define PPP_COMP 0xfd /* compressed packet */
mbedalvaro 0:df6fdd9b99f0 150 #define PPP_IPCP 0x8021 /* IP Control Protocol */
mbedalvaro 0:df6fdd9b99f0 151 #define PPP_ATCP 0x8029 /* AppleTalk Control Protocol */
mbedalvaro 0:df6fdd9b99f0 152 #define PPP_CCP 0x80fd /* Compression Control Protocol */
mbedalvaro 0:df6fdd9b99f0 153 #define PPP_LCP 0xc021 /* Link Control Protocol */
mbedalvaro 0:df6fdd9b99f0 154 #define PPP_PAP 0xc023 /* Password Authentication Protocol */
mbedalvaro 0:df6fdd9b99f0 155 #define PPP_LQR 0xc025 /* Link Quality Report protocol */
mbedalvaro 0:df6fdd9b99f0 156 #define PPP_CHAP 0xc223 /* Cryptographic Handshake Auth. Protocol */
mbedalvaro 0:df6fdd9b99f0 157 #define PPP_CBCP 0xc029 /* Callback Control Protocol */
mbedalvaro 0:df6fdd9b99f0 158
mbedalvaro 0:df6fdd9b99f0 159 /*
mbedalvaro 0:df6fdd9b99f0 160 * Values for FCS calculations.
mbedalvaro 0:df6fdd9b99f0 161 */
mbedalvaro 0:df6fdd9b99f0 162 #define PPP_INITFCS 0xffff /* Initial FCS value */
mbedalvaro 0:df6fdd9b99f0 163 #define PPP_GOODFCS 0xf0b8 /* Good final FCS value */
mbedalvaro 0:df6fdd9b99f0 164 #define PPP_FCS(fcs, c) (((fcs) >> 8) ^ fcstab[((fcs) ^ (c)) & 0xff])
mbedalvaro 0:df6fdd9b99f0 165
mbedalvaro 0:df6fdd9b99f0 166 /*
mbedalvaro 0:df6fdd9b99f0 167 * Extended asyncmap - allows any character to be escaped.
mbedalvaro 0:df6fdd9b99f0 168 */
mbedalvaro 0:df6fdd9b99f0 169 typedef u_char ext_accm[32];
mbedalvaro 0:df6fdd9b99f0 170
mbedalvaro 0:df6fdd9b99f0 171 /*
mbedalvaro 0:df6fdd9b99f0 172 * What to do with network protocol (NP) packets.
mbedalvaro 0:df6fdd9b99f0 173 */
mbedalvaro 0:df6fdd9b99f0 174 enum NPmode {
mbedalvaro 0:df6fdd9b99f0 175 NPMODE_PASS, /* pass the packet through */
mbedalvaro 0:df6fdd9b99f0 176 NPMODE_DROP, /* silently drop the packet */
mbedalvaro 0:df6fdd9b99f0 177 NPMODE_ERROR, /* return an error */
mbedalvaro 0:df6fdd9b99f0 178 NPMODE_QUEUE /* save it up for later. */
mbedalvaro 0:df6fdd9b99f0 179 };
mbedalvaro 0:df6fdd9b99f0 180
mbedalvaro 0:df6fdd9b99f0 181 /*
mbedalvaro 0:df6fdd9b99f0 182 * Inline versions of get/put char/short/long.
mbedalvaro 0:df6fdd9b99f0 183 * Pointer is advanced; we assume that both arguments
mbedalvaro 0:df6fdd9b99f0 184 * are lvalues and will already be in registers.
mbedalvaro 0:df6fdd9b99f0 185 * cp MUST be u_char *.
mbedalvaro 0:df6fdd9b99f0 186 */
mbedalvaro 0:df6fdd9b99f0 187 #define GETCHAR(c, cp) { \
mbedalvaro 0:df6fdd9b99f0 188 (c) = *(cp)++; \
mbedalvaro 0:df6fdd9b99f0 189 }
mbedalvaro 0:df6fdd9b99f0 190 #define PUTCHAR(c, cp) { \
mbedalvaro 0:df6fdd9b99f0 191 *(cp)++ = (u_char) (c); \
mbedalvaro 0:df6fdd9b99f0 192 }
mbedalvaro 0:df6fdd9b99f0 193
mbedalvaro 0:df6fdd9b99f0 194
mbedalvaro 0:df6fdd9b99f0 195 #define GETSHORT(s, cp) { \
mbedalvaro 0:df6fdd9b99f0 196 (s) = *(cp); (cp)++; (s) <<= 8; \
mbedalvaro 0:df6fdd9b99f0 197 (s) |= *(cp); (cp)++; \
mbedalvaro 0:df6fdd9b99f0 198 }
mbedalvaro 0:df6fdd9b99f0 199 #define PUTSHORT(s, cp) { \
mbedalvaro 0:df6fdd9b99f0 200 *(cp)++ = (u_char) ((s) >> 8); \
mbedalvaro 0:df6fdd9b99f0 201 *(cp)++ = (u_char) (s & 0xff); \
mbedalvaro 0:df6fdd9b99f0 202 }
mbedalvaro 0:df6fdd9b99f0 203
mbedalvaro 0:df6fdd9b99f0 204 #define GETLONG(l, cp) { \
mbedalvaro 0:df6fdd9b99f0 205 (l) = *(cp); (cp)++; (l) <<= 8; \
mbedalvaro 0:df6fdd9b99f0 206 (l) |= *(cp); (cp)++; (l) <<= 8; \
mbedalvaro 0:df6fdd9b99f0 207 (l) |= *(cp); (cp)++; (l) <<= 8; \
mbedalvaro 0:df6fdd9b99f0 208 (l) |= *(cp); (cp)++; \
mbedalvaro 0:df6fdd9b99f0 209 }
mbedalvaro 0:df6fdd9b99f0 210 #define PUTLONG(l, cp) { \
mbedalvaro 0:df6fdd9b99f0 211 *(cp)++ = (u_char) ((l) >> 24); \
mbedalvaro 0:df6fdd9b99f0 212 *(cp)++ = (u_char) ((l) >> 16); \
mbedalvaro 0:df6fdd9b99f0 213 *(cp)++ = (u_char) ((l) >> 8); \
mbedalvaro 0:df6fdd9b99f0 214 *(cp)++ = (u_char) (l); \
mbedalvaro 0:df6fdd9b99f0 215 }
mbedalvaro 0:df6fdd9b99f0 216
mbedalvaro 0:df6fdd9b99f0 217
mbedalvaro 0:df6fdd9b99f0 218 #define INCPTR(n, cp) ((cp) += (n))
mbedalvaro 0:df6fdd9b99f0 219 #define DECPTR(n, cp) ((cp) -= (n))
mbedalvaro 0:df6fdd9b99f0 220
mbedalvaro 0:df6fdd9b99f0 221 #define BCMP(s0, s1, l) memcmp((u_char *)(s0), (u_char *)(s1), (l))
mbedalvaro 0:df6fdd9b99f0 222 #define BCOPY(s, d, l) MEMCPY((d), (s), (l))
mbedalvaro 0:df6fdd9b99f0 223 #define BZERO(s, n) memset(s, 0, n)
mbedalvaro 0:df6fdd9b99f0 224
mbedalvaro 0:df6fdd9b99f0 225 #if PPP_DEBUG
mbedalvaro 0:df6fdd9b99f0 226 #define PRINTMSG(m, l) { m[l] = '\0'; LWIP_DEBUGF(LOG_INFO, ("Remote message: %s\n", m)); }
mbedalvaro 0:df6fdd9b99f0 227 #else /* PPP_DEBUG */
mbedalvaro 0:df6fdd9b99f0 228 #define PRINTMSG(m, l)
mbedalvaro 0:df6fdd9b99f0 229 #endif /* PPP_DEBUG */
mbedalvaro 0:df6fdd9b99f0 230
mbedalvaro 0:df6fdd9b99f0 231 /*
mbedalvaro 0:df6fdd9b99f0 232 * MAKEHEADER - Add PPP Header fields to a packet.
mbedalvaro 0:df6fdd9b99f0 233 */
mbedalvaro 0:df6fdd9b99f0 234 #define MAKEHEADER(p, t) { \
mbedalvaro 0:df6fdd9b99f0 235 PUTCHAR(PPP_ALLSTATIONS, p); \
mbedalvaro 0:df6fdd9b99f0 236 PUTCHAR(PPP_UI, p); \
mbedalvaro 0:df6fdd9b99f0 237 PUTSHORT(t, p); }
mbedalvaro 0:df6fdd9b99f0 238
mbedalvaro 0:df6fdd9b99f0 239 /*************************
mbedalvaro 0:df6fdd9b99f0 240 *** PUBLIC DEFINITIONS ***
mbedalvaro 0:df6fdd9b99f0 241 *************************/
mbedalvaro 0:df6fdd9b99f0 242
mbedalvaro 0:df6fdd9b99f0 243 /* Error codes. */
mbedalvaro 0:df6fdd9b99f0 244 #define PPPERR_NONE 0 /* No error. */
mbedalvaro 0:df6fdd9b99f0 245 #define PPPERR_PARAM -1 /* Invalid parameter. */
mbedalvaro 0:df6fdd9b99f0 246 #define PPPERR_OPEN -2 /* Unable to open PPP session. */
mbedalvaro 0:df6fdd9b99f0 247 #define PPPERR_DEVICE -3 /* Invalid I/O device for PPP. */
mbedalvaro 0:df6fdd9b99f0 248 #define PPPERR_ALLOC -4 /* Unable to allocate resources. */
mbedalvaro 0:df6fdd9b99f0 249 #define PPPERR_USER -5 /* User interrupt. */
mbedalvaro 0:df6fdd9b99f0 250 #define PPPERR_CONNECT -6 /* Connection lost. */
mbedalvaro 0:df6fdd9b99f0 251 #define PPPERR_AUTHFAIL -7 /* Failed authentication challenge. */
mbedalvaro 0:df6fdd9b99f0 252 #define PPPERR_PROTOCOL -8 /* Failed to meet protocol. */
mbedalvaro 0:df6fdd9b99f0 253
mbedalvaro 0:df6fdd9b99f0 254 /*
mbedalvaro 0:df6fdd9b99f0 255 * PPP IOCTL commands.
mbedalvaro 0:df6fdd9b99f0 256 */
mbedalvaro 0:df6fdd9b99f0 257 /*
mbedalvaro 0:df6fdd9b99f0 258 * Get the up status - 0 for down, non-zero for up. The argument must
mbedalvaro 0:df6fdd9b99f0 259 * point to an int.
mbedalvaro 0:df6fdd9b99f0 260 */
mbedalvaro 0:df6fdd9b99f0 261 #define PPPCTLG_UPSTATUS 100 /* Get the up status - 0 down else up */
mbedalvaro 0:df6fdd9b99f0 262 #define PPPCTLS_ERRCODE 101 /* Set the error code */
mbedalvaro 0:df6fdd9b99f0 263 #define PPPCTLG_ERRCODE 102 /* Get the error code */
mbedalvaro 0:df6fdd9b99f0 264 #define PPPCTLG_FD 103 /* Get the fd associated with the ppp */
mbedalvaro 0:df6fdd9b99f0 265
mbedalvaro 0:df6fdd9b99f0 266 /************************
mbedalvaro 0:df6fdd9b99f0 267 *** PUBLIC DATA TYPES ***
mbedalvaro 0:df6fdd9b99f0 268 ************************/
mbedalvaro 0:df6fdd9b99f0 269
mbedalvaro 0:df6fdd9b99f0 270 /*
mbedalvaro 0:df6fdd9b99f0 271 * The following struct gives the addresses of procedures to call
mbedalvaro 0:df6fdd9b99f0 272 * for a particular protocol.
mbedalvaro 0:df6fdd9b99f0 273 */
mbedalvaro 0:df6fdd9b99f0 274 struct protent {
mbedalvaro 0:df6fdd9b99f0 275 u_short protocol; /* PPP protocol number */
mbedalvaro 0:df6fdd9b99f0 276 /* Initialization procedure */
mbedalvaro 0:df6fdd9b99f0 277 void (*init) (int unit);
mbedalvaro 0:df6fdd9b99f0 278 /* Process a received packet */
mbedalvaro 0:df6fdd9b99f0 279 void (*input) (int unit, u_char *pkt, int len);
mbedalvaro 0:df6fdd9b99f0 280 /* Process a received protocol-reject */
mbedalvaro 0:df6fdd9b99f0 281 void (*protrej) (int unit);
mbedalvaro 0:df6fdd9b99f0 282 /* Lower layer has come up */
mbedalvaro 0:df6fdd9b99f0 283 void (*lowerup) (int unit);
mbedalvaro 0:df6fdd9b99f0 284 /* Lower layer has gone down */
mbedalvaro 0:df6fdd9b99f0 285 void (*lowerdown) (int unit);
mbedalvaro 0:df6fdd9b99f0 286 /* Open the protocol */
mbedalvaro 0:df6fdd9b99f0 287 void (*open) (int unit);
mbedalvaro 0:df6fdd9b99f0 288 /* Close the protocol */
mbedalvaro 0:df6fdd9b99f0 289 void (*close) (int unit, char *reason);
mbedalvaro 0:df6fdd9b99f0 290 #if PPP_ADDITIONAL_CALLBACKS
mbedalvaro 0:df6fdd9b99f0 291 /* Print a packet in readable form */
mbedalvaro 0:df6fdd9b99f0 292 int (*printpkt) (u_char *pkt, int len,
mbedalvaro 0:df6fdd9b99f0 293 void (*printer) (void *, char *, ...),
mbedalvaro 0:df6fdd9b99f0 294 void *arg);
mbedalvaro 0:df6fdd9b99f0 295 /* Process a received data packet */
mbedalvaro 0:df6fdd9b99f0 296 void (*datainput) (int unit, u_char *pkt, int len);
mbedalvaro 0:df6fdd9b99f0 297 #endif /* PPP_ADDITIONAL_CALLBACKS */
mbedalvaro 0:df6fdd9b99f0 298 int enabled_flag; /* 0 if protocol is disabled */
mbedalvaro 0:df6fdd9b99f0 299 char *name; /* Text name of protocol */
mbedalvaro 0:df6fdd9b99f0 300 #if PPP_ADDITIONAL_CALLBACKS
mbedalvaro 0:df6fdd9b99f0 301 /* Check requested options, assign defaults */
mbedalvaro 0:df6fdd9b99f0 302 void (*check_options) (u_long);
mbedalvaro 0:df6fdd9b99f0 303 /* Configure interface for demand-dial */
mbedalvaro 0:df6fdd9b99f0 304 int (*demand_conf) (int unit);
mbedalvaro 0:df6fdd9b99f0 305 /* Say whether to bring up link for this pkt */
mbedalvaro 0:df6fdd9b99f0 306 int (*active_pkt) (u_char *pkt, int len);
mbedalvaro 0:df6fdd9b99f0 307 #endif /* PPP_ADDITIONAL_CALLBACKS */
mbedalvaro 0:df6fdd9b99f0 308 };
mbedalvaro 0:df6fdd9b99f0 309
mbedalvaro 0:df6fdd9b99f0 310 /*
mbedalvaro 0:df6fdd9b99f0 311 * The following structure records the time in seconds since
mbedalvaro 0:df6fdd9b99f0 312 * the last NP packet was sent or received.
mbedalvaro 0:df6fdd9b99f0 313 */
mbedalvaro 0:df6fdd9b99f0 314 struct ppp_idle {
mbedalvaro 0:df6fdd9b99f0 315 u_short xmit_idle; /* seconds since last NP packet sent */
mbedalvaro 0:df6fdd9b99f0 316 u_short recv_idle; /* seconds since last NP packet received */
mbedalvaro 0:df6fdd9b99f0 317 };
mbedalvaro 0:df6fdd9b99f0 318
mbedalvaro 0:df6fdd9b99f0 319 struct ppp_settings {
mbedalvaro 0:df6fdd9b99f0 320
mbedalvaro 0:df6fdd9b99f0 321 u_int disable_defaultip : 1; /* Don't use hostname for default IP addrs */
mbedalvaro 0:df6fdd9b99f0 322 u_int auth_required : 1; /* Peer is required to authenticate */
mbedalvaro 0:df6fdd9b99f0 323 u_int explicit_remote : 1; /* remote_name specified with remotename opt */
mbedalvaro 0:df6fdd9b99f0 324 u_int refuse_pap : 1; /* Don't wanna auth. ourselves with PAP */
mbedalvaro 0:df6fdd9b99f0 325 u_int refuse_chap : 1; /* Don't wanna auth. ourselves with CHAP */
mbedalvaro 0:df6fdd9b99f0 326 u_int usehostname : 1; /* Use hostname for our_name */
mbedalvaro 0:df6fdd9b99f0 327 u_int usepeerdns : 1; /* Ask peer for DNS adds */
mbedalvaro 0:df6fdd9b99f0 328
mbedalvaro 0:df6fdd9b99f0 329 u_short idle_time_limit; /* Shut down link if idle for this long */
mbedalvaro 0:df6fdd9b99f0 330 int maxconnect; /* Maximum connect time (seconds) */
mbedalvaro 0:df6fdd9b99f0 331
mbedalvaro 0:df6fdd9b99f0 332 char user [MAXNAMELEN + 1]; /* Username for PAP */
mbedalvaro 0:df6fdd9b99f0 333 char passwd [MAXSECRETLEN + 1]; /* Password for PAP, secret for CHAP */
mbedalvaro 0:df6fdd9b99f0 334 char our_name [MAXNAMELEN + 1]; /* Our name for authentication purposes */
mbedalvaro 0:df6fdd9b99f0 335 char remote_name[MAXNAMELEN + 1]; /* Peer's name for authentication */
mbedalvaro 0:df6fdd9b99f0 336 };
mbedalvaro 0:df6fdd9b99f0 337
mbedalvaro 0:df6fdd9b99f0 338 struct ppp_addrs {
mbedalvaro 0:df6fdd9b99f0 339 ip_addr_t our_ipaddr, his_ipaddr, netmask, dns1, dns2;
mbedalvaro 0:df6fdd9b99f0 340 };
mbedalvaro 0:df6fdd9b99f0 341
mbedalvaro 0:df6fdd9b99f0 342 /*****************************
mbedalvaro 0:df6fdd9b99f0 343 *** PUBLIC DATA STRUCTURES ***
mbedalvaro 0:df6fdd9b99f0 344 *****************************/
mbedalvaro 0:df6fdd9b99f0 345
mbedalvaro 0:df6fdd9b99f0 346 /* Buffers for outgoing packets. */
mbedalvaro 0:df6fdd9b99f0 347 extern u_char outpacket_buf[NUM_PPP][PPP_MRU+PPP_HDRLEN];
mbedalvaro 0:df6fdd9b99f0 348
mbedalvaro 0:df6fdd9b99f0 349 extern struct ppp_settings ppp_settings;
mbedalvaro 0:df6fdd9b99f0 350
mbedalvaro 0:df6fdd9b99f0 351 extern struct protent *ppp_protocols[]; /* Table of pointers to supported protocols */
mbedalvaro 0:df6fdd9b99f0 352
mbedalvaro 0:df6fdd9b99f0 353
mbedalvaro 0:df6fdd9b99f0 354 /***********************
mbedalvaro 0:df6fdd9b99f0 355 *** PUBLIC FUNCTIONS ***
mbedalvaro 0:df6fdd9b99f0 356 ***********************/
mbedalvaro 0:df6fdd9b99f0 357
mbedalvaro 0:df6fdd9b99f0 358 /* Initialize the PPP subsystem. */
mbedalvaro 0:df6fdd9b99f0 359 void pppInit(void);
mbedalvaro 0:df6fdd9b99f0 360
mbedalvaro 0:df6fdd9b99f0 361 /* Warning: Using PPPAUTHTYPE_ANY might have security consequences.
mbedalvaro 0:df6fdd9b99f0 362 * RFC 1994 says:
mbedalvaro 0:df6fdd9b99f0 363 *
mbedalvaro 0:df6fdd9b99f0 364 * In practice, within or associated with each PPP server, there is a
mbedalvaro 0:df6fdd9b99f0 365 * database which associates "user" names with authentication
mbedalvaro 0:df6fdd9b99f0 366 * information ("secrets"). It is not anticipated that a particular
mbedalvaro 0:df6fdd9b99f0 367 * named user would be authenticated by multiple methods. This would
mbedalvaro 0:df6fdd9b99f0 368 * make the user vulnerable to attacks which negotiate the least secure
mbedalvaro 0:df6fdd9b99f0 369 * method from among a set (such as PAP rather than CHAP). If the same
mbedalvaro 0:df6fdd9b99f0 370 * secret was used, PAP would reveal the secret to be used later with
mbedalvaro 0:df6fdd9b99f0 371 * CHAP.
mbedalvaro 0:df6fdd9b99f0 372 *
mbedalvaro 0:df6fdd9b99f0 373 * Instead, for each user name there should be an indication of exactly
mbedalvaro 0:df6fdd9b99f0 374 * one method used to authenticate that user name. If a user needs to
mbedalvaro 0:df6fdd9b99f0 375 * make use of different authentication methods under different
mbedalvaro 0:df6fdd9b99f0 376 * circumstances, then distinct user names SHOULD be employed, each of
mbedalvaro 0:df6fdd9b99f0 377 * which identifies exactly one authentication method.
mbedalvaro 0:df6fdd9b99f0 378 *
mbedalvaro 0:df6fdd9b99f0 379 */
mbedalvaro 0:df6fdd9b99f0 380 enum pppAuthType {
mbedalvaro 0:df6fdd9b99f0 381 PPPAUTHTYPE_NONE,
mbedalvaro 0:df6fdd9b99f0 382 PPPAUTHTYPE_ANY,
mbedalvaro 0:df6fdd9b99f0 383 PPPAUTHTYPE_PAP,
mbedalvaro 0:df6fdd9b99f0 384 PPPAUTHTYPE_CHAP
mbedalvaro 0:df6fdd9b99f0 385 };
mbedalvaro 0:df6fdd9b99f0 386
mbedalvaro 0:df6fdd9b99f0 387 void pppSetAuth(enum pppAuthType authType, const char *user, const char *passwd);
mbedalvaro 0:df6fdd9b99f0 388
mbedalvaro 0:df6fdd9b99f0 389 /*
mbedalvaro 0:df6fdd9b99f0 390 * Open a new PPP connection using the given serial I/O device.
mbedalvaro 0:df6fdd9b99f0 391 * This initializes the PPP control block but does not
mbedalvaro 0:df6fdd9b99f0 392 * attempt to negotiate the LCP session.
mbedalvaro 0:df6fdd9b99f0 393 * Return a new PPP connection descriptor on success or
mbedalvaro 0:df6fdd9b99f0 394 * an error code (negative) on failure.
mbedalvaro 0:df6fdd9b99f0 395 */
mbedalvaro 0:df6fdd9b99f0 396 int pppOverSerialOpen(sio_fd_t fd, void (*linkStatusCB)(void *ctx, int errCode, void *arg), void *linkStatusCtx);
mbedalvaro 0:df6fdd9b99f0 397
mbedalvaro 0:df6fdd9b99f0 398 /*
mbedalvaro 0:df6fdd9b99f0 399 * Open a new PPP Over Ethernet (PPPOE) connection.
mbedalvaro 0:df6fdd9b99f0 400 */
mbedalvaro 0:df6fdd9b99f0 401 int pppOverEthernetOpen(struct netif *ethif, const char *service_name, const char *concentrator_name, void (*linkStatusCB)(void *ctx, int errCode, void *arg), void *linkStatusCtx);
mbedalvaro 0:df6fdd9b99f0 402
mbedalvaro 0:df6fdd9b99f0 403 /* for source code compatibility */
mbedalvaro 0:df6fdd9b99f0 404 #define pppOpen(fd,cb,ls) pppOverSerialOpen(fd,cb,ls)
mbedalvaro 0:df6fdd9b99f0 405
mbedalvaro 0:df6fdd9b99f0 406 /*
mbedalvaro 0:df6fdd9b99f0 407 * Close a PPP connection and release the descriptor.
mbedalvaro 0:df6fdd9b99f0 408 * Any outstanding packets in the queues are dropped.
mbedalvaro 0:df6fdd9b99f0 409 * Return 0 on success, an error code on failure.
mbedalvaro 0:df6fdd9b99f0 410 */
mbedalvaro 0:df6fdd9b99f0 411 int pppClose(int pd);
mbedalvaro 0:df6fdd9b99f0 412
mbedalvaro 0:df6fdd9b99f0 413 /*
mbedalvaro 0:df6fdd9b99f0 414 * Indicate to the PPP process that the line has disconnected.
mbedalvaro 0:df6fdd9b99f0 415 */
mbedalvaro 0:df6fdd9b99f0 416 void pppSigHUP(int pd);
mbedalvaro 0:df6fdd9b99f0 417
mbedalvaro 0:df6fdd9b99f0 418 /*
mbedalvaro 0:df6fdd9b99f0 419 * Get and set parameters for the given connection.
mbedalvaro 0:df6fdd9b99f0 420 * Return 0 on success, an error code on failure.
mbedalvaro 0:df6fdd9b99f0 421 */
mbedalvaro 0:df6fdd9b99f0 422 int pppIOCtl(int pd, int cmd, void *arg);
mbedalvaro 0:df6fdd9b99f0 423
mbedalvaro 0:df6fdd9b99f0 424 /*
mbedalvaro 0:df6fdd9b99f0 425 * Return the Maximum Transmission Unit for the given PPP connection.
mbedalvaro 0:df6fdd9b99f0 426 */
mbedalvaro 0:df6fdd9b99f0 427 u_short pppMTU(int pd);
mbedalvaro 0:df6fdd9b99f0 428
mbedalvaro 0:df6fdd9b99f0 429 /*
mbedalvaro 0:df6fdd9b99f0 430 * Write n characters to a ppp link.
mbedalvaro 0:df6fdd9b99f0 431 * RETURN: >= 0 Number of characters written, -1 Failed to write to device.
mbedalvaro 0:df6fdd9b99f0 432 */
mbedalvaro 0:df6fdd9b99f0 433 int pppWrite(int pd, const u_char *s, int n);
mbedalvaro 0:df6fdd9b99f0 434
mbedalvaro 0:df6fdd9b99f0 435 void pppInProcOverEthernet(int pd, struct pbuf *pb);
mbedalvaro 0:df6fdd9b99f0 436
mbedalvaro 0:df6fdd9b99f0 437 struct pbuf *pppSingleBuf(struct pbuf *p);
mbedalvaro 0:df6fdd9b99f0 438
mbedalvaro 0:df6fdd9b99f0 439 void pppLinkTerminated(int pd);
mbedalvaro 0:df6fdd9b99f0 440
mbedalvaro 0:df6fdd9b99f0 441 void pppLinkDown(int pd);
mbedalvaro 0:df6fdd9b99f0 442
mbedalvaro 0:df6fdd9b99f0 443 void pppos_input(int pd, u_char* data, int len);
mbedalvaro 0:df6fdd9b99f0 444
mbedalvaro 0:df6fdd9b99f0 445 /* Configure i/f transmit parameters */
mbedalvaro 0:df6fdd9b99f0 446 void ppp_send_config (int, u16_t, u32_t, int, int);
mbedalvaro 0:df6fdd9b99f0 447 /* Set extended transmit ACCM */
mbedalvaro 0:df6fdd9b99f0 448 void ppp_set_xaccm (int, ext_accm *);
mbedalvaro 0:df6fdd9b99f0 449 /* Configure i/f receive parameters */
mbedalvaro 0:df6fdd9b99f0 450 void ppp_recv_config (int, int, u32_t, int, int);
mbedalvaro 0:df6fdd9b99f0 451 /* Find out how long link has been idle */
mbedalvaro 0:df6fdd9b99f0 452 int get_idle_time (int, struct ppp_idle *);
mbedalvaro 0:df6fdd9b99f0 453
mbedalvaro 0:df6fdd9b99f0 454 /* Configure VJ TCP header compression */
mbedalvaro 0:df6fdd9b99f0 455 int sifvjcomp (int, int, u8_t, u8_t);
mbedalvaro 0:df6fdd9b99f0 456 /* Configure i/f down (for IP) */
mbedalvaro 0:df6fdd9b99f0 457 int sifup (int);
mbedalvaro 0:df6fdd9b99f0 458 /* Set mode for handling packets for proto */
mbedalvaro 0:df6fdd9b99f0 459 int sifnpmode (int u, int proto, enum NPmode mode);
mbedalvaro 0:df6fdd9b99f0 460 /* Configure i/f down (for IP) */
mbedalvaro 0:df6fdd9b99f0 461 int sifdown (int);
mbedalvaro 0:df6fdd9b99f0 462 /* Configure IP addresses for i/f */
mbedalvaro 0:df6fdd9b99f0 463 int sifaddr (int, u32_t, u32_t, u32_t, u32_t, u32_t);
mbedalvaro 0:df6fdd9b99f0 464 /* Reset i/f IP addresses */
mbedalvaro 0:df6fdd9b99f0 465 int cifaddr (int, u32_t, u32_t);
mbedalvaro 0:df6fdd9b99f0 466 /* Create default route through i/f */
mbedalvaro 0:df6fdd9b99f0 467 int sifdefaultroute (int, u32_t, u32_t);
mbedalvaro 0:df6fdd9b99f0 468 /* Delete default route through i/f */
mbedalvaro 0:df6fdd9b99f0 469 int cifdefaultroute (int, u32_t, u32_t);
mbedalvaro 0:df6fdd9b99f0 470
mbedalvaro 0:df6fdd9b99f0 471 /* Get appropriate netmask for address */
mbedalvaro 0:df6fdd9b99f0 472 u32_t GetMask (u32_t);
mbedalvaro 0:df6fdd9b99f0 473
mbedalvaro 0:df6fdd9b99f0 474 #if LWIP_NETIF_STATUS_CALLBACK
mbedalvaro 0:df6fdd9b99f0 475 void ppp_set_netif_statuscallback(int pd, netif_status_callback_fn status_callback);
mbedalvaro 0:df6fdd9b99f0 476 #endif /* LWIP_NETIF_STATUS_CALLBACK */
mbedalvaro 0:df6fdd9b99f0 477 #if LWIP_NETIF_LINK_CALLBACK
mbedalvaro 0:df6fdd9b99f0 478 void ppp_set_netif_linkcallback(int pd, netif_status_callback_fn link_callback);
mbedalvaro 0:df6fdd9b99f0 479 #endif /* LWIP_NETIF_LINK_CALLBACK */
mbedalvaro 0:df6fdd9b99f0 480
mbedalvaro 0:df6fdd9b99f0 481 #endif /* PPP_SUPPORT */
mbedalvaro 0:df6fdd9b99f0 482
mbedalvaro 0:df6fdd9b99f0 483 #endif /* PPP_H */