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