1/*
2 * ecp.c - PPP Encryption Control Protocol.
3 *
4 * Copyright (c) 2002 The Android Open Source Project
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 *
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 *
14 * 2. Redistributions in binary form must reproduce the above copyright
15 *    notice, this list of conditions and the following disclaimer in
16 *    the documentation and/or other materials provided with the
17 *    distribution.
18 *
19 * 3. The name(s) of the authors of this software must not be used to
20 *    endorse or promote products derived from this software without
21 *    prior written permission.
22 *
23 * THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO
24 * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
25 * AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY
26 * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
27 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
28 * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
29 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
30 *
31 * Derived from ccp.c, which is:
32 *
33 * Copyright (c) 1994-2002 Paul Mackerras. All rights reserved.
34 *
35 * Redistribution and use in source and binary forms, with or without
36 * modification, are permitted provided that the following conditions
37 * are met:
38 *
39 * 1. Redistributions of source code must retain the above copyright
40 *    notice, this list of conditions and the following disclaimer.
41 *
42 * 2. The name(s) of the authors of this software must not be used to
43 *    endorse or promote products derived from this software without
44 *    prior written permission.
45 *
46 * 3. Redistributions of any form whatsoever must retain the following
47 *    acknowledgment:
48 *    "This product includes software developed by Paul Mackerras
49 *     <paulus@samba.org>".
50 *
51 * THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO
52 * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
53 * AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY
54 * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
55 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
56 * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
57 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
58 */
59
60#define RCSID	"$Id: ecp.c,v 1.4 2004/11/04 10:02:26 paulus Exp $"
61
62static const char rcsid[] = RCSID;
63
64#include <string.h>
65
66#include "pppd.h"
67#include "fsm.h"
68#include "ecp.h"
69
70static option_t ecp_option_list[] = {
71    { "noecp", o_bool, &ecp_protent.enabled_flag,
72      "Disable ECP negotiation" },
73    { "-ecp", o_bool, &ecp_protent.enabled_flag,
74      "Disable ECP negotiation", OPT_ALIAS },
75
76    { NULL }
77};
78
79/*
80 * Protocol entry points from main code.
81 */
82static void ecp_init __P((int unit));
83/*
84static void ecp_open __P((int unit));
85static void ecp_close __P((int unit, char *));
86static void ecp_lowerup __P((int unit));
87static void ecp_lowerdown __P((int));
88static void ecp_input __P((int unit, u_char *pkt, int len));
89static void ecp_protrej __P((int unit));
90*/
91static int  ecp_printpkt __P((u_char *pkt, int len,
92			      void (*printer) __P((void *, char *, ...)),
93			      void *arg));
94/*
95static void ecp_datainput __P((int unit, u_char *pkt, int len));
96*/
97
98struct protent ecp_protent = {
99    PPP_ECP,
100    ecp_init,
101    NULL, /* ecp_input, */
102    NULL, /* ecp_protrej, */
103    NULL, /* ecp_lowerup, */
104    NULL, /* ecp_lowerdown, */
105    NULL, /* ecp_open, */
106    NULL, /* ecp_close, */
107    ecp_printpkt,
108    NULL, /* ecp_datainput, */
109    0,
110    "ECP",
111    "Encrypted",
112    ecp_option_list,
113    NULL,
114    NULL,
115    NULL
116};
117
118fsm ecp_fsm[NUM_PPP];
119ecp_options ecp_wantoptions[NUM_PPP];	/* what to request the peer to use */
120ecp_options ecp_gotoptions[NUM_PPP];	/* what the peer agreed to do */
121ecp_options ecp_allowoptions[NUM_PPP];	/* what we'll agree to do */
122ecp_options ecp_hisoptions[NUM_PPP];	/* what we agreed to do */
123
124static fsm_callbacks ecp_callbacks = {
125    NULL, /* ecp_resetci, */
126    NULL, /* ecp_cilen, */
127    NULL, /* ecp_addci, */
128    NULL, /* ecp_ackci, */
129    NULL, /* ecp_nakci, */
130    NULL, /* ecp_rejci, */
131    NULL, /* ecp_reqci, */
132    NULL, /* ecp_up, */
133    NULL, /* ecp_down, */
134    NULL,
135    NULL,
136    NULL,
137    NULL,
138    NULL, /* ecp_extcode, */
139    "ECP"
140};
141
142/*
143 * ecp_init - initialize ECP.
144 */
145static void
146ecp_init(unit)
147    int unit;
148{
149    fsm *f = &ecp_fsm[unit];
150
151    f->unit = unit;
152    f->protocol = PPP_ECP;
153    f->callbacks = &ecp_callbacks;
154    fsm_init(f);
155
156    memset(&ecp_wantoptions[unit],  0, sizeof(ecp_options));
157    memset(&ecp_gotoptions[unit],   0, sizeof(ecp_options));
158    memset(&ecp_allowoptions[unit], 0, sizeof(ecp_options));
159    memset(&ecp_hisoptions[unit],   0, sizeof(ecp_options));
160
161}
162
163
164static int
165ecp_printpkt(p, plen, printer, arg)
166    u_char *p;
167    int plen;
168    void (*printer) __P((void *, char *, ...));
169    void *arg;
170{
171    return 0;
172}
173
174