kopia lustrzana https://github.com/espressif/esp-idf
192 wiersze
5.5 KiB
C
192 wiersze
5.5 KiB
C
![]() |
/*
|
||
|
* 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 "lwip/opt.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_clear() */
|
||
|
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 */
|