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1 | /***************************************************************************** | |
2 | * ppp_oe.h - PPP Over Ethernet implementation for lwIP. | |
3 | * | |
4 | * Copyright (c) 2006 by Marc Boucher, Services Informatiques (MBSI) inc. | |
5 | * | |
6 | * The authors hereby grant permission to use, copy, modify, distribute, | |
7 | * and license this software and its documentation for any purpose, provided | |
8 | * that existing copyright notices are retained in all copies and that this | |
9 | * notice and the following disclaimer are included verbatim in any | |
10 | * distributions. No written agreement, license, or royalty fee is required | |
11 | * for any of the authorized uses. | |
12 | * | |
13 | * THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS *AS IS* AND ANY EXPRESS OR | |
14 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES | |
15 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. | |
16 | * IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, | |
17 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
18 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
19 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
20 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
21 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | |
22 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
23 | * | |
24 | ****************************************************************************** | |
25 | * REVISION HISTORY | |
26 | * | |
27 | * 06-01-01 Marc Boucher <marc@mbsi.ca> | |
28 | * Ported to lwIP. | |
29 | *****************************************************************************/ | |
30 | ||
31 | ||
32 | ||
33 | /* based on NetBSD: if_pppoe.c,v 1.64 2006/01/31 23:50:15 martin Exp */ | |
34 | ||
35 | /*- | |
36 | * Copyright (c) 2002 The NetBSD Foundation, Inc. | |
37 | * All rights reserved. | |
38 | * | |
39 | * This code is derived from software contributed to The NetBSD Foundation | |
40 | * by Martin Husemann <martin@NetBSD.org>. | |
41 | * | |
42 | * Redistribution and use in source and binary forms, with or without | |
43 | * modification, are permitted provided that the following conditions | |
44 | * are met: | |
45 | * 1. Redistributions of source code must retain the above copyright | |
46 | * notice, this list of conditions and the following disclaimer. | |
47 | * 2. Redistributions in binary form must reproduce the above copyright | |
48 | * notice, this list of conditions and the following disclaimer in the | |
49 | * documentation and/or other materials provided with the distribution. | |
50 | * 3. All advertising materials mentioning features or use of this software | |
51 | * must display the following acknowledgement: | |
52 | * This product includes software developed by the NetBSD | |
53 | * Foundation, Inc. and its contributors. | |
54 | * 4. Neither the name of The NetBSD Foundation nor the names of its | |
55 | * contributors may be used to endorse or promote products derived | |
56 | * from this software without specific prior written permission. | |
57 | * | |
58 | * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS | |
59 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED | |
60 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
61 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS | |
62 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
63 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
64 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
65 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | |
66 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
67 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
68 | * POSSIBILITY OF SUCH DAMAGE. | |
69 | */ | |
70 | #ifndef PPP_OE_H | |
71 | #define PPP_OE_H | |
72 | ||
73 | #include "lwip/opt.h" | |
74 | ||
75 | #if PPPOE_SUPPORT > 0 | |
76 | ||
77 | #ifdef PACK_STRUCT_USE_INCLUDES | |
78 | # include "arch/bpstruct.h" | |
79 | #endif | |
80 | PACK_STRUCT_BEGIN | |
81 | struct pppoehdr { | |
82 | PACK_STRUCT_FIELD(u8_t vertype); | |
83 | PACK_STRUCT_FIELD(u8_t code); | |
84 | PACK_STRUCT_FIELD(u16_t session); | |
85 | PACK_STRUCT_FIELD(u16_t plen); | |
86 | } PACK_STRUCT_STRUCT; | |
87 | PACK_STRUCT_END | |
88 | #ifdef PACK_STRUCT_USE_INCLUDES | |
89 | # include "arch/epstruct.h" | |
90 | #endif | |
91 | ||
92 | #ifdef PACK_STRUCT_USE_INCLUDES | |
93 | # include "arch/bpstruct.h" | |
94 | #endif | |
95 | PACK_STRUCT_BEGIN | |
96 | struct pppoetag { | |
97 | PACK_STRUCT_FIELD(u16_t tag); | |
98 | PACK_STRUCT_FIELD(u16_t len); | |
99 | } PACK_STRUCT_STRUCT; | |
100 | PACK_STRUCT_END | |
101 | #ifdef PACK_STRUCT_USE_INCLUDES | |
102 | # include "arch/epstruct.h" | |
103 | #endif | |
104 | ||
105 | ||
106 | #define PPPOE_STATE_INITIAL 0 | |
107 | #define PPPOE_STATE_PADI_SENT 1 | |
108 | #define PPPOE_STATE_PADR_SENT 2 | |
109 | #define PPPOE_STATE_SESSION 3 | |
110 | #define PPPOE_STATE_CLOSING 4 | |
111 | /* passive */ | |
112 | #define PPPOE_STATE_PADO_SENT 1 | |
113 | ||
114 | #define PPPOE_HEADERLEN sizeof(struct pppoehdr) | |
115 | #define PPPOE_VERTYPE 0x11 /* VER=1, TYPE = 1 */ | |
116 | ||
117 | #define PPPOE_TAG_EOL 0x0000 /* end of list */ | |
118 | #define PPPOE_TAG_SNAME 0x0101 /* service name */ | |
119 | #define PPPOE_TAG_ACNAME 0x0102 /* access concentrator name */ | |
120 | #define PPPOE_TAG_HUNIQUE 0x0103 /* host unique */ | |
121 | #define PPPOE_TAG_ACCOOKIE 0x0104 /* AC cookie */ | |
122 | #define PPPOE_TAG_VENDOR 0x0105 /* vendor specific */ | |
123 | #define PPPOE_TAG_RELAYSID 0x0110 /* relay session id */ | |
124 | #define PPPOE_TAG_SNAME_ERR 0x0201 /* service name error */ | |
125 | #define PPPOE_TAG_ACSYS_ERR 0x0202 /* AC system error */ | |
126 | #define PPPOE_TAG_GENERIC_ERR 0x0203 /* gerneric error */ | |
127 | ||
128 | #define PPPOE_CODE_PADI 0x09 /* Active Discovery Initiation */ | |
129 | #define PPPOE_CODE_PADO 0x07 /* Active Discovery Offer */ | |
130 | #define PPPOE_CODE_PADR 0x19 /* Active Discovery Request */ | |
131 | #define PPPOE_CODE_PADS 0x65 /* Active Discovery Session confirmation */ | |
132 | #define PPPOE_CODE_PADT 0xA7 /* Active Discovery Terminate */ | |
133 | ||
134 | #ifndef ETHERMTU | |
135 | #define ETHERMTU 1500 | |
136 | #endif | |
137 | ||
138 | /* two byte PPP protocol discriminator, then IP data */ | |
139 | #define PPPOE_MAXMTU (ETHERMTU-PPPOE_HEADERLEN-2) | |
140 | ||
141 | struct pppoe_softc; | |
142 | ||
143 | ||
144 | void pppoe_init(void); | |
145 | ||
146 | err_t pppoe_create(struct netif *ethif, int pd, void (*linkStatusCB)(int pd, int up), struct pppoe_softc **scptr); | |
147 | err_t pppoe_destroy(struct netif *ifp); | |
148 | ||
149 | int pppoe_connect(struct pppoe_softc *sc); | |
150 | void pppoe_disconnect(struct pppoe_softc *sc); | |
151 | ||
152 | void pppoe_disc_input(struct netif *netif, struct pbuf *p); | |
153 | void pppoe_data_input(struct netif *netif, struct pbuf *p); | |
154 | ||
155 | err_t pppoe_xmit(struct pppoe_softc *sc, struct pbuf *pb); | |
156 | ||
157 | extern int pppoe_hdrlen; | |
158 | ||
159 | #endif /* PPPOE_SUPPORT */ | |
160 | ||
161 | #endif /* PPP_OE_H */ |