2 * ecp.c - PPP Encryption Control Protocol.
4 * Copyright (c) 2002 Google, Inc.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
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
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.
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.
31 * Derived from ccp.c, which is:
33 * Copyright (c) 1994-2002 Paul Mackerras. All rights reserved.
35 * Redistribution and use in source and binary forms, with or without
36 * modification, are permitted provided that the following conditions
39 * 1. Redistributions of source code must retain the above copyright
40 * notice, this list of conditions and the following disclaimer.
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.
46 * 3. Redistributions of any form whatsoever must retain the following
48 * "This product includes software developed by Paul Mackerras
49 * <paulus@samba.org>".
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.
60 #include "netif/ppp/ppp_opts.h"
61 #if PPP_SUPPORT && ECP_SUPPORT /* don't build if not configured for use in lwipopts.h */
65 #include "netif/ppp/ppp_impl.h"
67 #include "netif/ppp/fsm.h"
68 #include "netif/ppp/ecp.h"
71 static option_t ecp_option_list[] = {
72 { "noecp", o_bool, &ecp_protent.enabled_flag,
73 "Disable ECP negotiation" },
74 { "-ecp", o_bool, &ecp_protent.enabled_flag,
75 "Disable ECP negotiation", OPT_ALIAS },
79 #endif /* PPP_OPTIONS */
82 * Protocol entry points from main code.
84 static void ecp_init (int unit);
86 static void ecp_open (int unit);
87 static void ecp_close (int unit, char *);
88 static void ecp_lowerup (int unit);
89 static void ecp_lowerdown (int);
90 static void ecp_input (int unit, u_char *pkt, int len);
91 static void ecp_protrej (int unit);
94 static int ecp_printpkt (const u_char *pkt, int len,
95 void (*printer) (void *, char *, ...),
97 #endif /* PRINTPKT_SUPPORT */
99 static void ecp_datainput (int unit, u_char *pkt, int len);
102 const struct protent ecp_protent = {
105 NULL, /* ecp_input, */
106 NULL, /* ecp_protrej, */
107 NULL, /* ecp_lowerup, */
108 NULL, /* ecp_lowerdown, */
109 NULL, /* ecp_open, */
110 NULL, /* ecp_close, */
113 #endif /* PRINTPKT_SUPPORT */
115 NULL, /* ecp_datainput, */
116 #endif /* PPP_DATAINPUT */
120 #endif /* PRINTPKT_SUPPORT */
124 #endif /* PPP_OPTIONS */
128 #endif /* DEMAND_SUPPORT */
131 fsm ecp_fsm[NUM_PPP];
132 ecp_options ecp_wantoptions[NUM_PPP]; /* what to request the peer to use */
133 ecp_options ecp_gotoptions[NUM_PPP]; /* what the peer agreed to do */
134 ecp_options ecp_allowoptions[NUM_PPP]; /* what we'll agree to do */
135 ecp_options ecp_hisoptions[NUM_PPP]; /* what we agreed to do */
137 static const fsm_callbacks ecp_callbacks = {
138 NULL, /* ecp_resetci, */
139 NULL, /* ecp_cilen, */
140 NULL, /* ecp_addci, */
141 NULL, /* ecp_ackci, */
142 NULL, /* ecp_nakci, */
143 NULL, /* ecp_rejci, */
144 NULL, /* ecp_reqci, */
146 NULL, /* ecp_down, */
151 NULL, /* ecp_extcode, */
156 * ecp_init - initialize ECP.
162 fsm *f = &ecp_fsm[unit];
165 f->protocol = PPP_ECP;
166 f->callbacks = &ecp_callbacks;
169 #if 0 /* Not necessary, everything is cleared in ppp_new() */
170 memset(&ecp_wantoptions[unit], 0, sizeof(ecp_options));
171 memset(&ecp_gotoptions[unit], 0, sizeof(ecp_options));
172 memset(&ecp_allowoptions[unit], 0, sizeof(ecp_options));
173 memset(&ecp_hisoptions[unit], 0, sizeof(ecp_options));
181 ecp_printpkt(p, plen, printer, arg)
184 void (*printer) (void *, char *, ...);
189 #endif /* PRINTPKT_SUPPORT */
191 #endif /* PPP_SUPPORT && ECP_SUPPORT */