ReactOS  0.4.15-dev-3294-ge98684e
ppp_oe.h
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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 #include "netif/etharp.h"
78 
79 #ifdef PACK_STRUCT_USE_INCLUDES
80 # include "arch/bpstruct.h"
81 #endif
83 struct pppoehdr {
84  PACK_STRUCT_FIELD(u8_t vertype);
90 #ifdef PACK_STRUCT_USE_INCLUDES
91 # include "arch/epstruct.h"
92 #endif
93 
94 #ifdef PACK_STRUCT_USE_INCLUDES
95 # include "arch/bpstruct.h"
96 #endif
98 struct pppoetag {
103 #ifdef PACK_STRUCT_USE_INCLUDES
104 # include "arch/epstruct.h"
105 #endif
106 
107 
108 #define PPPOE_STATE_INITIAL 0
109 #define PPPOE_STATE_PADI_SENT 1
110 #define PPPOE_STATE_PADR_SENT 2
111 #define PPPOE_STATE_SESSION 3
112 #define PPPOE_STATE_CLOSING 4
113 /* passive */
114 #define PPPOE_STATE_PADO_SENT 1
115 
116 #define PPPOE_HEADERLEN sizeof(struct pppoehdr)
117 #define PPPOE_VERTYPE 0x11 /* VER=1, TYPE = 1 */
118 
119 #define PPPOE_TAG_EOL 0x0000 /* end of list */
120 #define PPPOE_TAG_SNAME 0x0101 /* service name */
121 #define PPPOE_TAG_ACNAME 0x0102 /* access concentrator name */
122 #define PPPOE_TAG_HUNIQUE 0x0103 /* host unique */
123 #define PPPOE_TAG_ACCOOKIE 0x0104 /* AC cookie */
124 #define PPPOE_TAG_VENDOR 0x0105 /* vendor specific */
125 #define PPPOE_TAG_RELAYSID 0x0110 /* relay session id */
126 #define PPPOE_TAG_SNAME_ERR 0x0201 /* service name error */
127 #define PPPOE_TAG_ACSYS_ERR 0x0202 /* AC system error */
128 #define PPPOE_TAG_GENERIC_ERR 0x0203 /* gerneric error */
129 
130 #define PPPOE_CODE_PADI 0x09 /* Active Discovery Initiation */
131 #define PPPOE_CODE_PADO 0x07 /* Active Discovery Offer */
132 #define PPPOE_CODE_PADR 0x19 /* Active Discovery Request */
133 #define PPPOE_CODE_PADS 0x65 /* Active Discovery Session confirmation */
134 #define PPPOE_CODE_PADT 0xA7 /* Active Discovery Terminate */
135 
136 #ifndef ETHERMTU
137 #define ETHERMTU 1500
138 #endif
139 
140 /* two byte PPP protocol discriminator, then IP data */
141 #define PPPOE_MAXMTU (ETHERMTU-PPPOE_HEADERLEN-2)
142 
143 #ifndef PPPOE_MAX_AC_COOKIE_LEN
144 #define PPPOE_MAX_AC_COOKIE_LEN 64
145 #endif
146 
147 struct pppoe_softc {
148  struct pppoe_softc *next;
149  struct netif *sc_ethif; /* ethernet interface we are using */
150  int sc_pd; /* ppp unit number */
151  void (*sc_linkStatusCB)(int pd, int up);
152 
153  int sc_state; /* discovery phase or session connected */
154  struct eth_addr sc_dest; /* hardware address of concentrator */
155  u16_t sc_session; /* PPPoE session id */
156 
157 #ifdef PPPOE_TODO
158  char *sc_service_name; /* if != NULL: requested name of service */
159  char *sc_concentrator_name; /* if != NULL: requested concentrator id */
160 #endif /* PPPOE_TODO */
161  u8_t sc_ac_cookie[PPPOE_MAX_AC_COOKIE_LEN]; /* content of AC cookie we must echo back */
162  size_t sc_ac_cookie_len; /* length of cookie data */
163 #ifdef PPPOE_SERVER
164  u8_t *sc_hunique; /* content of host unique we must echo back */
165  size_t sc_hunique_len; /* length of host unique */
166 #endif
167  int sc_padi_retried; /* number of PADI retries already done */
168  int sc_padr_retried; /* number of PADR retries already done */
169 };
170 
171 
172 #define pppoe_init() /* compatibility define, no initialization needed */
173 
174 err_t pppoe_create(struct netif *ethif, int pd, void (*linkStatusCB)(int pd, int up), struct pppoe_softc **scptr);
175 err_t pppoe_destroy(struct netif *ifp);
176 
177 int pppoe_connect(struct pppoe_softc *sc);
178 void pppoe_disconnect(struct pppoe_softc *sc);
179 
180 void pppoe_disc_input(struct netif *netif, struct pbuf *p);
181 void pppoe_data_input(struct netif *netif, struct pbuf *p);
182 
183 err_t pppoe_xmit(struct pppoe_softc *sc, struct pbuf *pb);
184 
186 #define PPPOE_HDRLEN (sizeof(struct eth_hdr) + PPPOE_HEADERLEN)
187 
188 #endif /* PPPOE_SUPPORT */
189 
190 #endif /* PPP_OE_H */
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