1/*
2 * ecp.c - PPP Encryption Control Protocol.
3 *
4 * Copyright (c) 2002 Google, Inc.
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. Redistributions in binary form must reproduce the above copyright
43 *    notice, this list of conditions and the following disclaimer in
44 *    the documentation and/or other materials provided with the
45 *    distribution.
46 *
47 * 3. The name(s) of the authors of this software must not be used to
48 *    endorse or promote products derived from this software without
49 *    prior written permission.
50 *
51 * 4. Redistributions of any form whatsoever must retain the following
52 *    acknowledgment:
53 *    "This product includes software developed by Paul Mackerras
54 *     <paulus@samba.org>".
55 *
56 * THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO
57 * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
58 * AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY
59 * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
60 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
61 * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
62 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
63 */
64
65#define RCSID	"$Id: ecp.c,v 1.1.1.1 2008/10/15 03:30:45 james26_jang Exp $"
66
67static const char rcsid[] = RCSID;
68
69#include <string.h>
70
71#include "pppd.h"
72#include "fsm.h"
73#include "ecp.h"
74
75static option_t ecp_option_list[] = {
76    { "noecp", o_bool, &ecp_protent.enabled_flag,
77      "Disable ECP negotiation" },
78    { "-ecp", o_bool, &ecp_protent.enabled_flag,
79      "Disable ECP negotiation", OPT_ALIAS },
80
81    { NULL }
82};
83
84/*
85 * Protocol entry points from main code.
86 */
87static void ecp_init __P((int unit));
88/*
89static void ecp_open __P((int unit));
90static void ecp_close __P((int unit, char *));
91static void ecp_lowerup __P((int unit));
92static void ecp_lowerdown __P((int));
93static void ecp_input __P((int unit, u_char *pkt, int len));
94static void ecp_protrej __P((int unit));
95*/
96static int  ecp_printpkt __P((u_char *pkt, int len,
97			      void (*printer) __P((void *, char *, ...)),
98			      void *arg));
99/*
100static void ecp_datainput __P((int unit, u_char *pkt, int len));
101*/
102
103struct protent ecp_protent = {
104    PPP_ECP,
105    ecp_init,
106    NULL, /* ecp_input, */
107    NULL, /* ecp_protrej, */
108    NULL, /* ecp_lowerup, */
109    NULL, /* ecp_lowerdown, */
110    NULL, /* ecp_open, */
111    NULL, /* ecp_close, */
112    ecp_printpkt,
113    NULL, /* ecp_datainput, */
114    0,
115    "ECP",
116    "Encrypted",
117    ecp_option_list,
118    NULL,
119    NULL,
120    NULL
121};
122
123fsm ecp_fsm[NUM_PPP];
124ecp_options ecp_wantoptions[NUM_PPP];	/* what to request the peer to use */
125ecp_options ecp_gotoptions[NUM_PPP];	/* what the peer agreed to do */
126ecp_options ecp_allowoptions[NUM_PPP];	/* what we'll agree to do */
127ecp_options ecp_hisoptions[NUM_PPP];	/* what we agreed to do */
128
129static fsm_callbacks ecp_callbacks = {
130    NULL, /* ecp_resetci, */
131    NULL, /* ecp_cilen, */
132    NULL, /* ecp_addci, */
133    NULL, /* ecp_ackci, */
134    NULL, /* ecp_nakci, */
135    NULL, /* ecp_rejci, */
136    NULL, /* ecp_reqci, */
137    NULL, /* ecp_up, */
138    NULL, /* ecp_down, */
139    NULL,
140    NULL,
141    NULL,
142    NULL,
143    NULL, /* ecp_extcode, */
144    "ECP"
145};
146
147/*
148 * ecp_init - initialize ECP.
149 */
150static void
151ecp_init(unit)
152    int unit;
153{
154    fsm *f = &ecp_fsm[unit];
155
156    f->unit = unit;
157    f->protocol = PPP_ECP;
158    f->callbacks = &ecp_callbacks;
159    fsm_init(f);
160
161    memset(&ecp_wantoptions[unit],  0, sizeof(ecp_options));
162    memset(&ecp_gotoptions[unit],   0, sizeof(ecp_options));
163    memset(&ecp_allowoptions[unit], 0, sizeof(ecp_options));
164    memset(&ecp_hisoptions[unit],   0, sizeof(ecp_options));
165
166}
167
168
169static int
170ecp_printpkt(p, plen, printer, arg)
171    u_char *p;
172    int plen;
173    void (*printer) __P((void *, char *, ...));
174    void *arg;
175{
176    return 0;
177}
178
179