BadVPN – Rev 1
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/*
* ecp.c - PPP Encryption Control Protocol.
*
* Copyright (c) 2002 Google, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The name(s) of the authors of this software must not be used to
* endorse or promote products derived from this software without
* prior written permission.
*
* THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO
* THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY
* SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
* AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
* Derived from ccp.c, which is:
*
* Copyright (c) 1994-2002 Paul Mackerras. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. The name(s) of the authors of this software must not be used to
* endorse or promote products derived from this software without
* prior written permission.
*
* 3. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by Paul Mackerras
* <paulus@samba.org>".
*
* THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO
* THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY
* SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
* AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include "netif/ppp/ppp_opts.h"
#if PPP_SUPPORT && ECP_SUPPORT /* don't build if not configured for use in lwipopts.h */
#include <string.h>
#include "netif/ppp/ppp_impl.h"
#include "netif/ppp/fsm.h"
#include "netif/ppp/ecp.h"
#if PPP_OPTIONS
static option_t ecp_option_list[] = {
{ "noecp", o_bool, &ecp_protent.enabled_flag,
"Disable ECP negotiation" },
{ "-ecp", o_bool, &ecp_protent.enabled_flag,
"Disable ECP negotiation", OPT_ALIAS },
{ NULL }
};
#endif /* PPP_OPTIONS */
/*
* Protocol entry points from main code.
*/
static void ecp_init (int unit);
/*
static void ecp_open (int unit);
static void ecp_close (int unit, char *);
static void ecp_lowerup (int unit);
static void ecp_lowerdown (int);
static void ecp_input (int unit, u_char *pkt, int len);
static void ecp_protrej (int unit);
*/
#if PRINTPKT_SUPPORT
static int ecp_printpkt (const u_char *pkt, int len,
void (*printer) (void *, char *, ...),
void *arg);
#endif /* PRINTPKT_SUPPORT */
/*
static void ecp_datainput (int unit, u_char *pkt, int len);
*/
const struct protent ecp_protent = {
PPP_ECP,
ecp_init,
NULL, /* ecp_input, */
NULL, /* ecp_protrej, */
NULL, /* ecp_lowerup, */
NULL, /* ecp_lowerdown, */
NULL, /* ecp_open, */
NULL, /* ecp_close, */
#if PRINTPKT_SUPPORT
ecp_printpkt,
#endif /* PRINTPKT_SUPPORT */
#if PPP_DATAINPUT
NULL, /* ecp_datainput, */
#endif /* PPP_DATAINPUT */
#if PRINTPKT_SUPPORT
"ECP",
"Encrypted",
#endif /* PRINTPKT_SUPPORT */
#if PPP_OPTIONS
ecp_option_list,
NULL,
#endif /* PPP_OPTIONS */
#if DEMAND_SUPPORT
NULL,
NULL
#endif /* DEMAND_SUPPORT */
};
fsm ecp_fsm[NUM_PPP];
ecp_options ecp_wantoptions[NUM_PPP]; /* what to request the peer to use */
ecp_options ecp_gotoptions[NUM_PPP]; /* what the peer agreed to do */
ecp_options ecp_allowoptions[NUM_PPP]; /* what we'll agree to do */
ecp_options ecp_hisoptions[NUM_PPP]; /* what we agreed to do */
static const fsm_callbacks ecp_callbacks = {
NULL, /* ecp_resetci, */
NULL, /* ecp_cilen, */
NULL, /* ecp_addci, */
NULL, /* ecp_ackci, */
NULL, /* ecp_nakci, */
NULL, /* ecp_rejci, */
NULL, /* ecp_reqci, */
NULL, /* ecp_up, */
NULL, /* ecp_down, */
NULL,
NULL,
NULL,
NULL,
NULL, /* ecp_extcode, */
"ECP"
};
/*
* ecp_init - initialize ECP.
*/
static void
ecp_init(unit)
int unit;
{
fsm *f = &ecp_fsm[unit];
f->unit = unit;
f->protocol = PPP_ECP;
f->callbacks = &ecp_callbacks;
fsm_init(f);
#if 0 /* Not necessary, everything is cleared in ppp_new() */
memset(&ecp_wantoptions[unit], 0, sizeof(ecp_options));
memset(&ecp_gotoptions[unit], 0, sizeof(ecp_options));
memset(&ecp_allowoptions[unit], 0, sizeof(ecp_options));
memset(&ecp_hisoptions[unit], 0, sizeof(ecp_options));
#endif /* 0 */
}
#if PRINTPKT_SUPPORT
static int
ecp_printpkt(p, plen, printer, arg)
const u_char *p;
int plen;
void (*printer) (void *, char *, ...);
void *arg;
{
return 0;
}
#endif /* PRINTPKT_SUPPORT */
#endif /* PPP_SUPPORT && ECP_SUPPORT */