BF_Websocket

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Brandon Fictorie / Mbed 2 deprecated BF_Websocket

NetServices/lwip/netif/ppp/lcp.c@0:8cdad1c73e8e, 2012-03-25 (annotated)

Committer:: bfictorie
Date:: Sun Mar 25 17:26:30 2012 +0000
Revision:: 0:8cdad1c73e8e

Who changed what in which revision?

User	Revision	Line number	New contents of line
bfictorie	0:8cdad1c73e8e	1	/*****************************************************************************
bfictorie	0:8cdad1c73e8e	2	* lcp.c - Network Link Control Protocol program file.
bfictorie	0:8cdad1c73e8e	3	*
bfictorie	0:8cdad1c73e8e	4	* Copyright (c) 2003 by Marc Boucher, Services Informatiques (MBSI) inc.
bfictorie	0:8cdad1c73e8e	5	* portions Copyright (c) 1997 by Global Election Systems Inc.
bfictorie	0:8cdad1c73e8e	6	*
bfictorie	0:8cdad1c73e8e	7	* The authors hereby grant permission to use, copy, modify, distribute,
bfictorie	0:8cdad1c73e8e	8	* and license this software and its documentation for any purpose, provided
bfictorie	0:8cdad1c73e8e	9	* that existing copyright notices are retained in all copies and that this
bfictorie	0:8cdad1c73e8e	10	* notice and the following disclaimer are included verbatim in any
bfictorie	0:8cdad1c73e8e	11	* distributions. No written agreement, license, or royalty fee is required
bfictorie	0:8cdad1c73e8e	12	* for any of the authorized uses.
bfictorie	0:8cdad1c73e8e	13	*
bfictorie	0:8cdad1c73e8e	14	* THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS AS IS AND ANY EXPRESS OR
bfictorie	0:8cdad1c73e8e	15	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
bfictorie	0:8cdad1c73e8e	16	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
bfictorie	0:8cdad1c73e8e	17	* IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
bfictorie	0:8cdad1c73e8e	18	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
bfictorie	0:8cdad1c73e8e	19	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
bfictorie	0:8cdad1c73e8e	20	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
bfictorie	0:8cdad1c73e8e	21	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
bfictorie	0:8cdad1c73e8e	22	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
bfictorie	0:8cdad1c73e8e	23	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
bfictorie	0:8cdad1c73e8e	24	*
bfictorie	0:8cdad1c73e8e	25	******************************************************************************
bfictorie	0:8cdad1c73e8e	26	* REVISION HISTORY
bfictorie	0:8cdad1c73e8e	27	*
bfictorie	0:8cdad1c73e8e	28	* 03-01-01 Marc Boucher <marc@mbsi.ca>
bfictorie	0:8cdad1c73e8e	29	* Ported to lwIP.
bfictorie	0:8cdad1c73e8e	30	* 97-12-01 Guy Lancaster <lancasterg@acm.org>, Global Election Systems Inc.
bfictorie	0:8cdad1c73e8e	31	* Original.
bfictorie	0:8cdad1c73e8e	32	*****************************************************************************/
bfictorie	0:8cdad1c73e8e	33
bfictorie	0:8cdad1c73e8e	34	/*
bfictorie	0:8cdad1c73e8e	35	* lcp.c - PPP Link Control Protocol.
bfictorie	0:8cdad1c73e8e	36	*
bfictorie	0:8cdad1c73e8e	37	* Copyright (c) 1989 Carnegie Mellon University.
bfictorie	0:8cdad1c73e8e	38	* All rights reserved.
bfictorie	0:8cdad1c73e8e	39	*
bfictorie	0:8cdad1c73e8e	40	* Redistribution and use in source and binary forms are permitted
bfictorie	0:8cdad1c73e8e	41	* provided that the above copyright notice and this paragraph are
bfictorie	0:8cdad1c73e8e	42	* duplicated in all such forms and that any documentation,
bfictorie	0:8cdad1c73e8e	43	* advertising materials, and other materials related to such
bfictorie	0:8cdad1c73e8e	44	* distribution and use acknowledge that the software was developed
bfictorie	0:8cdad1c73e8e	45	* by Carnegie Mellon University. The name of the
bfictorie	0:8cdad1c73e8e	46	* University may not be used to endorse or promote products derived
bfictorie	0:8cdad1c73e8e	47	* from this software without specific prior written permission.
bfictorie	0:8cdad1c73e8e	48	* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
bfictorie	0:8cdad1c73e8e	49	* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
bfictorie	0:8cdad1c73e8e	50	* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
bfictorie	0:8cdad1c73e8e	51	*/
bfictorie	0:8cdad1c73e8e	52
bfictorie	0:8cdad1c73e8e	53
bfictorie	0:8cdad1c73e8e	54	#include "lwip/opt.h"
bfictorie	0:8cdad1c73e8e	55
bfictorie	0:8cdad1c73e8e	56	#if PPP_SUPPORT /* don't build if not configured for use in lwipopts.h */
bfictorie	0:8cdad1c73e8e	57
bfictorie	0:8cdad1c73e8e	58	#include "ppp.h"
bfictorie	0:8cdad1c73e8e	59	#include "pppdebug.h"
bfictorie	0:8cdad1c73e8e	60
bfictorie	0:8cdad1c73e8e	61	#include "fsm.h"
bfictorie	0:8cdad1c73e8e	62	#include "chap.h"
bfictorie	0:8cdad1c73e8e	63	#include "magic.h"
bfictorie	0:8cdad1c73e8e	64	#include "auth.h"
bfictorie	0:8cdad1c73e8e	65	#include "lcp.h"
bfictorie	0:8cdad1c73e8e	66
bfictorie	0:8cdad1c73e8e	67	#include <string.h>
bfictorie	0:8cdad1c73e8e	68
bfictorie	0:8cdad1c73e8e	69	#if PPPOE_SUPPORT
bfictorie	0:8cdad1c73e8e	70	#include "netif/ppp_oe.h"
bfictorie	0:8cdad1c73e8e	71	#else
bfictorie	0:8cdad1c73e8e	72	#define PPPOE_MAXMTU PPP_MAXMRU
bfictorie	0:8cdad1c73e8e	73	#endif
bfictorie	0:8cdad1c73e8e	74
bfictorie	0:8cdad1c73e8e	75	#if 0 /* UNUSED */
bfictorie	0:8cdad1c73e8e	76	/*
bfictorie	0:8cdad1c73e8e	77	* LCP-related command-line options.
bfictorie	0:8cdad1c73e8e	78	*/
bfictorie	0:8cdad1c73e8e	79	int lcp_echo_interval = 0; /* Interval between LCP echo-requests */
bfictorie	0:8cdad1c73e8e	80	int lcp_echo_fails = 0; /* Tolerance to unanswered echo-requests */
bfictorie	0:8cdad1c73e8e	81	bool lax_recv = 0; /* accept control chars in asyncmap */
bfictorie	0:8cdad1c73e8e	82
bfictorie	0:8cdad1c73e8e	83	static int setescape (char **);
bfictorie	0:8cdad1c73e8e	84
bfictorie	0:8cdad1c73e8e	85	static option_t lcp_option_list[] = {
bfictorie	0:8cdad1c73e8e	86	/* LCP options */
bfictorie	0:8cdad1c73e8e	87	/* list stripped for simplicity */
bfictorie	0:8cdad1c73e8e	88	{NULL}
bfictorie	0:8cdad1c73e8e	89	};
bfictorie	0:8cdad1c73e8e	90	#endif /* UNUSED */
bfictorie	0:8cdad1c73e8e	91
bfictorie	0:8cdad1c73e8e	92	/* options */
bfictorie	0:8cdad1c73e8e	93	LinkPhase lcp_phase[NUM_PPP]; /* Phase of link session (RFC 1661) */
bfictorie	0:8cdad1c73e8e	94	static u_int lcp_echo_interval = LCP_ECHOINTERVAL; /* Interval between LCP echo-requests */
bfictorie	0:8cdad1c73e8e	95	static u_int lcp_echo_fails = LCP_MAXECHOFAILS; /* Tolerance to unanswered echo-requests */
bfictorie	0:8cdad1c73e8e	96
bfictorie	0:8cdad1c73e8e	97	/* global vars */
bfictorie	0:8cdad1c73e8e	98	static fsm lcp_fsm[NUM_PPP]; /* LCP fsm structure (global)*/
bfictorie	0:8cdad1c73e8e	99	lcp_options lcp_wantoptions[NUM_PPP]; /* Options that we want to request */
bfictorie	0:8cdad1c73e8e	100	lcp_options lcp_gotoptions[NUM_PPP]; /* Options that peer ack'd */
bfictorie	0:8cdad1c73e8e	101	lcp_options lcp_allowoptions[NUM_PPP]; /* Options we allow peer to request */
bfictorie	0:8cdad1c73e8e	102	lcp_options lcp_hisoptions[NUM_PPP]; /* Options that we ack'd */
bfictorie	0:8cdad1c73e8e	103	ext_accm xmit_accm[NUM_PPP]; /* extended transmit ACCM */
bfictorie	0:8cdad1c73e8e	104
bfictorie	0:8cdad1c73e8e	105	static u32_t lcp_echos_pending = 0; /* Number of outstanding echo msgs */
bfictorie	0:8cdad1c73e8e	106	static u32_t lcp_echo_number = 0; /* ID number of next echo frame */
bfictorie	0:8cdad1c73e8e	107	static u32_t lcp_echo_timer_running = 0; /* TRUE if a timer is running */
bfictorie	0:8cdad1c73e8e	108
bfictorie	0:8cdad1c73e8e	109	/* @todo: do we really need such a large buffer? The typical 1500 bytes seem too much. */
bfictorie	0:8cdad1c73e8e	110	static u_char nak_buffer[PPP_MRU]; /* where we construct a nak packet */
bfictorie	0:8cdad1c73e8e	111
bfictorie	0:8cdad1c73e8e	112	/*
bfictorie	0:8cdad1c73e8e	113	* Callbacks for fsm code. (CI = Configuration Information)
bfictorie	0:8cdad1c73e8e	114	*/
bfictorie	0:8cdad1c73e8e	115	static void lcp_resetci (fsm); / Reset our CI */
bfictorie	0:8cdad1c73e8e	116	static int lcp_cilen (fsm); / Return length of our CI */
bfictorie	0:8cdad1c73e8e	117	static void lcp_addci (fsm, u_char, int); / Add our CI to pkt */
bfictorie	0:8cdad1c73e8e	118	static int lcp_ackci (fsm, u_char, int); /* Peer ack'd our CI */
bfictorie	0:8cdad1c73e8e	119	static int lcp_nakci (fsm, u_char, int); /* Peer nak'd our CI */
bfictorie	0:8cdad1c73e8e	120	static int lcp_rejci (fsm, u_char, int); /* Peer rej'd our CI */
bfictorie	0:8cdad1c73e8e	121	static int lcp_reqci (fsm, u_char, int, int); / Rcv peer CI */
bfictorie	0:8cdad1c73e8e	122	static void lcp_up (fsm); / We're UP */
bfictorie	0:8cdad1c73e8e	123	static void lcp_down (fsm); / We're DOWN */
bfictorie	0:8cdad1c73e8e	124	static void lcp_starting (fsm); / We need lower layer up */
bfictorie	0:8cdad1c73e8e	125	static void lcp_finished (fsm); / We need lower layer down */
bfictorie	0:8cdad1c73e8e	126	static int lcp_extcode (fsm, int, u_char, u_char, int);
bfictorie	0:8cdad1c73e8e	127	static void lcp_rprotrej (fsm, u_char, int);
bfictorie	0:8cdad1c73e8e	128
bfictorie	0:8cdad1c73e8e	129	/*
bfictorie	0:8cdad1c73e8e	130	* routines to send LCP echos to peer
bfictorie	0:8cdad1c73e8e	131	*/
bfictorie	0:8cdad1c73e8e	132
bfictorie	0:8cdad1c73e8e	133	static void lcp_echo_lowerup (int);
bfictorie	0:8cdad1c73e8e	134	static void lcp_echo_lowerdown (int);
bfictorie	0:8cdad1c73e8e	135	static void LcpEchoTimeout (void*);
bfictorie	0:8cdad1c73e8e	136	static void lcp_received_echo_reply (fsm, int, u_char, int);
bfictorie	0:8cdad1c73e8e	137	static void LcpSendEchoRequest (fsm*);
bfictorie	0:8cdad1c73e8e	138	static void LcpLinkFailure (fsm*);
bfictorie	0:8cdad1c73e8e	139	static void LcpEchoCheck (fsm*);
bfictorie	0:8cdad1c73e8e	140
bfictorie	0:8cdad1c73e8e	141	static fsm_callbacks lcp_callbacks = { /* LCP callback routines */
bfictorie	0:8cdad1c73e8e	142	lcp_resetci, /* Reset our Configuration Information */
bfictorie	0:8cdad1c73e8e	143	lcp_cilen, /* Length of our Configuration Information */
bfictorie	0:8cdad1c73e8e	144	lcp_addci, /* Add our Configuration Information */
bfictorie	0:8cdad1c73e8e	145	lcp_ackci, /* ACK our Configuration Information */
bfictorie	0:8cdad1c73e8e	146	lcp_nakci, /* NAK our Configuration Information */
bfictorie	0:8cdad1c73e8e	147	lcp_rejci, /* Reject our Configuration Information */
bfictorie	0:8cdad1c73e8e	148	lcp_reqci, /* Request peer's Configuration Information */
bfictorie	0:8cdad1c73e8e	149	lcp_up, /* Called when fsm reaches LS_OPENED state */
bfictorie	0:8cdad1c73e8e	150	lcp_down, /* Called when fsm leaves LS_OPENED state */
bfictorie	0:8cdad1c73e8e	151	lcp_starting, /* Called when we want the lower layer up */
bfictorie	0:8cdad1c73e8e	152	lcp_finished, /* Called when we want the lower layer down */
bfictorie	0:8cdad1c73e8e	153	NULL, /* Called when Protocol-Reject received */
bfictorie	0:8cdad1c73e8e	154	NULL, /* Retransmission is necessary */
bfictorie	0:8cdad1c73e8e	155	lcp_extcode, /* Called to handle LCP-specific codes */
bfictorie	0:8cdad1c73e8e	156	"LCP" /* String name of protocol */
bfictorie	0:8cdad1c73e8e	157	};
bfictorie	0:8cdad1c73e8e	158
bfictorie	0:8cdad1c73e8e	159	/*
bfictorie	0:8cdad1c73e8e	160	* Protocol entry points.
bfictorie	0:8cdad1c73e8e	161	* Some of these are called directly.
bfictorie	0:8cdad1c73e8e	162	*/
bfictorie	0:8cdad1c73e8e	163
bfictorie	0:8cdad1c73e8e	164	static void lcp_input (int, u_char *, int);
bfictorie	0:8cdad1c73e8e	165	static void lcp_protrej (int);
bfictorie	0:8cdad1c73e8e	166
bfictorie	0:8cdad1c73e8e	167	struct protent lcp_protent = {
bfictorie	0:8cdad1c73e8e	168	PPP_LCP,
bfictorie	0:8cdad1c73e8e	169	lcp_init,
bfictorie	0:8cdad1c73e8e	170	lcp_input,
bfictorie	0:8cdad1c73e8e	171	lcp_protrej,
bfictorie	0:8cdad1c73e8e	172	lcp_lowerup,
bfictorie	0:8cdad1c73e8e	173	lcp_lowerdown,
bfictorie	0:8cdad1c73e8e	174	lcp_open,
bfictorie	0:8cdad1c73e8e	175	lcp_close,
bfictorie	0:8cdad1c73e8e	176	#if PPP_ADDITIONAL_CALLBACKS
bfictorie	0:8cdad1c73e8e	177	lcp_printpkt,
bfictorie	0:8cdad1c73e8e	178	NULL,
bfictorie	0:8cdad1c73e8e	179	#endif /* PPP_ADDITIONAL_CALLBACKS */
bfictorie	0:8cdad1c73e8e	180	1,
bfictorie	0:8cdad1c73e8e	181	"LCP",
bfictorie	0:8cdad1c73e8e	182	#if PPP_ADDITIONAL_CALLBACKS
bfictorie	0:8cdad1c73e8e	183	NULL,
bfictorie	0:8cdad1c73e8e	184	NULL,
bfictorie	0:8cdad1c73e8e	185	NULL
bfictorie	0:8cdad1c73e8e	186	#endif /* PPP_ADDITIONAL_CALLBACKS */
bfictorie	0:8cdad1c73e8e	187	};
bfictorie	0:8cdad1c73e8e	188
bfictorie	0:8cdad1c73e8e	189	int lcp_loopbackfail = DEFLOOPBACKFAIL;
bfictorie	0:8cdad1c73e8e	190
bfictorie	0:8cdad1c73e8e	191	/*
bfictorie	0:8cdad1c73e8e	192	* Length of each type of configuration option (in octets)
bfictorie	0:8cdad1c73e8e	193	*/
bfictorie	0:8cdad1c73e8e	194	#define CILEN_VOID 2
bfictorie	0:8cdad1c73e8e	195	#define CILEN_CHAR 3
bfictorie	0:8cdad1c73e8e	196	#define CILEN_SHORT 4 /* CILEN_VOID + sizeof(short) */
bfictorie	0:8cdad1c73e8e	197	#define CILEN_CHAP 5 /* CILEN_VOID + sizeof(short) + 1 */
bfictorie	0:8cdad1c73e8e	198	#define CILEN_LONG 6 /* CILEN_VOID + sizeof(long) */
bfictorie	0:8cdad1c73e8e	199	#define CILEN_LQR 8 /* CILEN_VOID + sizeof(short) + sizeof(long) */
bfictorie	0:8cdad1c73e8e	200	#define CILEN_CBCP 3
bfictorie	0:8cdad1c73e8e	201
bfictorie	0:8cdad1c73e8e	202	#define CODENAME(x) ((x) == CONFACK ? "ACK" : (x) == CONFNAK ? "NAK" : "REJ")
bfictorie	0:8cdad1c73e8e	203
bfictorie	0:8cdad1c73e8e	204	#if 0 /* UNUSED */
bfictorie	0:8cdad1c73e8e	205	/*
bfictorie	0:8cdad1c73e8e	206	* setescape - add chars to the set we escape on transmission.
bfictorie	0:8cdad1c73e8e	207	*/
bfictorie	0:8cdad1c73e8e	208	static int
bfictorie	0:8cdad1c73e8e	209	setescape(argv)
bfictorie	0:8cdad1c73e8e	210	char **argv;
bfictorie	0:8cdad1c73e8e	211	{
bfictorie	0:8cdad1c73e8e	212	int n, ret;
bfictorie	0:8cdad1c73e8e	213	char p, endp;
bfictorie	0:8cdad1c73e8e	214
bfictorie	0:8cdad1c73e8e	215	p = *argv;
bfictorie	0:8cdad1c73e8e	216	ret = 1;
bfictorie	0:8cdad1c73e8e	217	while (*p) {
bfictorie	0:8cdad1c73e8e	218	n = strtol(p, &endp, 16);
bfictorie	0:8cdad1c73e8e	219	if (p == endp) {
bfictorie	0:8cdad1c73e8e	220	option_error("escape parameter contains invalid hex number '%s'", p);
bfictorie	0:8cdad1c73e8e	221	return 0;
bfictorie	0:8cdad1c73e8e	222	}
bfictorie	0:8cdad1c73e8e	223	p = endp;
bfictorie	0:8cdad1c73e8e	224	if (n < 0 \|\| n == 0x5E \|\| n > 0xFF) {
bfictorie	0:8cdad1c73e8e	225	option_error("can't escape character 0x%x", n);
bfictorie	0:8cdad1c73e8e	226	ret = 0;
bfictorie	0:8cdad1c73e8e	227	} else
bfictorie	0:8cdad1c73e8e	228	xmit_accm[0][n >> 5] \|= 1 << (n & 0x1F);
bfictorie	0:8cdad1c73e8e	229	while (p == ',' \|\| p == ' ')
bfictorie	0:8cdad1c73e8e	230	++p;
bfictorie	0:8cdad1c73e8e	231	}
bfictorie	0:8cdad1c73e8e	232	return ret;
bfictorie	0:8cdad1c73e8e	233	}
bfictorie	0:8cdad1c73e8e	234	#endif /* UNUSED */
bfictorie	0:8cdad1c73e8e	235
bfictorie	0:8cdad1c73e8e	236	/*
bfictorie	0:8cdad1c73e8e	237	* lcp_init - Initialize LCP.
bfictorie	0:8cdad1c73e8e	238	*/
bfictorie	0:8cdad1c73e8e	239	void
bfictorie	0:8cdad1c73e8e	240	lcp_init(int unit)
bfictorie	0:8cdad1c73e8e	241	{
bfictorie	0:8cdad1c73e8e	242	fsm *f = &lcp_fsm[unit];
bfictorie	0:8cdad1c73e8e	243	lcp_options *wo = &lcp_wantoptions[unit];
bfictorie	0:8cdad1c73e8e	244	lcp_options *ao = &lcp_allowoptions[unit];
bfictorie	0:8cdad1c73e8e	245
bfictorie	0:8cdad1c73e8e	246	f->unit = unit;
bfictorie	0:8cdad1c73e8e	247	f->protocol = PPP_LCP;
bfictorie	0:8cdad1c73e8e	248	f->callbacks = &lcp_callbacks;
bfictorie	0:8cdad1c73e8e	249
bfictorie	0:8cdad1c73e8e	250	fsm_init(f);
bfictorie	0:8cdad1c73e8e	251
bfictorie	0:8cdad1c73e8e	252	wo->passive = 0;
bfictorie	0:8cdad1c73e8e	253	wo->silent = 0;
bfictorie	0:8cdad1c73e8e	254	wo->restart = 0; /* Set to 1 in kernels or multi-line implementations */
bfictorie	0:8cdad1c73e8e	255	wo->neg_mru = 1;
bfictorie	0:8cdad1c73e8e	256	wo->mru = PPP_DEFMRU;
bfictorie	0:8cdad1c73e8e	257	wo->neg_asyncmap = 1;
bfictorie	0:8cdad1c73e8e	258	wo->asyncmap = 0x00000000l; /* Assume don't need to escape any ctl chars. */
bfictorie	0:8cdad1c73e8e	259	wo->neg_chap = 0; /* Set to 1 on server */
bfictorie	0:8cdad1c73e8e	260	wo->neg_upap = 0; /* Set to 1 on server */
bfictorie	0:8cdad1c73e8e	261	wo->chap_mdtype = CHAP_DIGEST_MD5;
bfictorie	0:8cdad1c73e8e	262	wo->neg_magicnumber = 1;
bfictorie	0:8cdad1c73e8e	263	wo->neg_pcompression = 1;
bfictorie	0:8cdad1c73e8e	264	wo->neg_accompression = 1;
bfictorie	0:8cdad1c73e8e	265	wo->neg_lqr = 0; /* no LQR implementation yet */
bfictorie	0:8cdad1c73e8e	266	wo->neg_cbcp = 0;
bfictorie	0:8cdad1c73e8e	267
bfictorie	0:8cdad1c73e8e	268	ao->neg_mru = 1;
bfictorie	0:8cdad1c73e8e	269	ao->mru = PPP_MAXMRU;
bfictorie	0:8cdad1c73e8e	270	ao->neg_asyncmap = 1;
bfictorie	0:8cdad1c73e8e	271	ao->asyncmap = 0x00000000l; /* Assume don't need to escape any ctl chars. */
bfictorie	0:8cdad1c73e8e	272	ao->neg_chap = (CHAP_SUPPORT != 0);
bfictorie	0:8cdad1c73e8e	273	ao->chap_mdtype = CHAP_DIGEST_MD5;
bfictorie	0:8cdad1c73e8e	274	ao->neg_upap = (PAP_SUPPORT != 0);
bfictorie	0:8cdad1c73e8e	275	ao->neg_magicnumber = 1;
bfictorie	0:8cdad1c73e8e	276	ao->neg_pcompression = 1;
bfictorie	0:8cdad1c73e8e	277	ao->neg_accompression = 1;
bfictorie	0:8cdad1c73e8e	278	ao->neg_lqr = 0; /* no LQR implementation yet */
bfictorie	0:8cdad1c73e8e	279	ao->neg_cbcp = (CBCP_SUPPORT != 0);
bfictorie	0:8cdad1c73e8e	280
bfictorie	0:8cdad1c73e8e	281	/*
bfictorie	0:8cdad1c73e8e	282	* Set transmit escape for the flag and escape characters plus anything
bfictorie	0:8cdad1c73e8e	283	* set for the allowable options.
bfictorie	0:8cdad1c73e8e	284	*/
bfictorie	0:8cdad1c73e8e	285	memset(xmit_accm[unit], 0, sizeof(xmit_accm[0]));
bfictorie	0:8cdad1c73e8e	286	xmit_accm[unit][15] = 0x60;
bfictorie	0:8cdad1c73e8e	287	xmit_accm[unit][0] = (u_char)((ao->asyncmap & 0xFF));
bfictorie	0:8cdad1c73e8e	288	xmit_accm[unit][1] = (u_char)((ao->asyncmap >> 8) & 0xFF);
bfictorie	0:8cdad1c73e8e	289	xmit_accm[unit][2] = (u_char)((ao->asyncmap >> 16) & 0xFF);
bfictorie	0:8cdad1c73e8e	290	xmit_accm[unit][3] = (u_char)((ao->asyncmap >> 24) & 0xFF);
bfictorie	0:8cdad1c73e8e	291	LCPDEBUG(LOG_INFO, ("lcp_init: xmit_accm=%X %X %X %X\n",
bfictorie	0:8cdad1c73e8e	292	xmit_accm[unit][0],
bfictorie	0:8cdad1c73e8e	293	xmit_accm[unit][1],
bfictorie	0:8cdad1c73e8e	294	xmit_accm[unit][2],
bfictorie	0:8cdad1c73e8e	295	xmit_accm[unit][3]));
bfictorie	0:8cdad1c73e8e	296
bfictorie	0:8cdad1c73e8e	297	lcp_phase[unit] = PHASE_INITIALIZE;
bfictorie	0:8cdad1c73e8e	298	}
bfictorie	0:8cdad1c73e8e	299
bfictorie	0:8cdad1c73e8e	300
bfictorie	0:8cdad1c73e8e	301	/*
bfictorie	0:8cdad1c73e8e	302	* lcp_open - LCP is allowed to come up.
bfictorie	0:8cdad1c73e8e	303	*/
bfictorie	0:8cdad1c73e8e	304	void
bfictorie	0:8cdad1c73e8e	305	lcp_open(int unit)
bfictorie	0:8cdad1c73e8e	306	{
bfictorie	0:8cdad1c73e8e	307	fsm *f = &lcp_fsm[unit];
bfictorie	0:8cdad1c73e8e	308	lcp_options *wo = &lcp_wantoptions[unit];
bfictorie	0:8cdad1c73e8e	309
bfictorie	0:8cdad1c73e8e	310	f->flags = 0;
bfictorie	0:8cdad1c73e8e	311	if (wo->passive) {
bfictorie	0:8cdad1c73e8e	312	f->flags \|= OPT_PASSIVE;
bfictorie	0:8cdad1c73e8e	313	}
bfictorie	0:8cdad1c73e8e	314	if (wo->silent) {
bfictorie	0:8cdad1c73e8e	315	f->flags \|= OPT_SILENT;
bfictorie	0:8cdad1c73e8e	316	}
bfictorie	0:8cdad1c73e8e	317	fsm_open(f);
bfictorie	0:8cdad1c73e8e	318
bfictorie	0:8cdad1c73e8e	319	lcp_phase[unit] = PHASE_ESTABLISH;
bfictorie	0:8cdad1c73e8e	320	}
bfictorie	0:8cdad1c73e8e	321
bfictorie	0:8cdad1c73e8e	322
bfictorie	0:8cdad1c73e8e	323	/*
bfictorie	0:8cdad1c73e8e	324	* lcp_close - Take LCP down.
bfictorie	0:8cdad1c73e8e	325	*/
bfictorie	0:8cdad1c73e8e	326	void
bfictorie	0:8cdad1c73e8e	327	lcp_close(int unit, char *reason)
bfictorie	0:8cdad1c73e8e	328	{
bfictorie	0:8cdad1c73e8e	329	fsm *f = &lcp_fsm[unit];
bfictorie	0:8cdad1c73e8e	330
bfictorie	0:8cdad1c73e8e	331	if (lcp_phase[unit] != PHASE_DEAD) {
bfictorie	0:8cdad1c73e8e	332	lcp_phase[unit] = PHASE_TERMINATE;
bfictorie	0:8cdad1c73e8e	333	}
bfictorie	0:8cdad1c73e8e	334	if (f->state == LS_STOPPED && f->flags & (OPT_PASSIVE\|OPT_SILENT)) {
bfictorie	0:8cdad1c73e8e	335	/*
bfictorie	0:8cdad1c73e8e	336	* This action is not strictly according to the FSM in RFC1548,
bfictorie	0:8cdad1c73e8e	337	* but it does mean that the program terminates if you do an
bfictorie	0:8cdad1c73e8e	338	* lcp_close() in passive/silent mode when a connection hasn't
bfictorie	0:8cdad1c73e8e	339	* been established.
bfictorie	0:8cdad1c73e8e	340	*/
bfictorie	0:8cdad1c73e8e	341	f->state = LS_CLOSED;
bfictorie	0:8cdad1c73e8e	342	lcp_finished(f);
bfictorie	0:8cdad1c73e8e	343	} else {
bfictorie	0:8cdad1c73e8e	344	fsm_close(f, reason);
bfictorie	0:8cdad1c73e8e	345	}
bfictorie	0:8cdad1c73e8e	346	}
bfictorie	0:8cdad1c73e8e	347
bfictorie	0:8cdad1c73e8e	348
bfictorie	0:8cdad1c73e8e	349	/*
bfictorie	0:8cdad1c73e8e	350	* lcp_lowerup - The lower layer is up.
bfictorie	0:8cdad1c73e8e	351	*/
bfictorie	0:8cdad1c73e8e	352	void
bfictorie	0:8cdad1c73e8e	353	lcp_lowerup(int unit)
bfictorie	0:8cdad1c73e8e	354	{
bfictorie	0:8cdad1c73e8e	355	lcp_options *wo = &lcp_wantoptions[unit];
bfictorie	0:8cdad1c73e8e	356
bfictorie	0:8cdad1c73e8e	357	/*
bfictorie	0:8cdad1c73e8e	358	* Don't use A/C or protocol compression on transmission,
bfictorie	0:8cdad1c73e8e	359	* but accept A/C and protocol compressed packets
bfictorie	0:8cdad1c73e8e	360	* if we are going to ask for A/C and protocol compression.
bfictorie	0:8cdad1c73e8e	361	*/
bfictorie	0:8cdad1c73e8e	362	ppp_set_xaccm(unit, &xmit_accm[unit]);
bfictorie	0:8cdad1c73e8e	363	ppp_send_config(unit, PPP_MRU, 0xffffffffl, 0, 0);
bfictorie	0:8cdad1c73e8e	364	ppp_recv_config(unit, PPP_MRU, 0x00000000l,
bfictorie	0:8cdad1c73e8e	365	wo->neg_pcompression, wo->neg_accompression);
bfictorie	0:8cdad1c73e8e	366	peer_mru[unit] = PPP_MRU;
bfictorie	0:8cdad1c73e8e	367	lcp_allowoptions[unit].asyncmap = (u_long)xmit_accm[unit][0]
bfictorie	0:8cdad1c73e8e	368	\| ((u_long)xmit_accm[unit][1] << 8)
bfictorie	0:8cdad1c73e8e	369	\| ((u_long)xmit_accm[unit][2] << 16)
bfictorie	0:8cdad1c73e8e	370	\| ((u_long)xmit_accm[unit][3] << 24);
bfictorie	0:8cdad1c73e8e	371	LCPDEBUG(LOG_INFO, ("lcp_lowerup: asyncmap=%X %X %X %X\n",
bfictorie	0:8cdad1c73e8e	372	xmit_accm[unit][3],
bfictorie	0:8cdad1c73e8e	373	xmit_accm[unit][2],
bfictorie	0:8cdad1c73e8e	374	xmit_accm[unit][1],
bfictorie	0:8cdad1c73e8e	375	xmit_accm[unit][0]));
bfictorie	0:8cdad1c73e8e	376
bfictorie	0:8cdad1c73e8e	377	fsm_lowerup(&lcp_fsm[unit]);
bfictorie	0:8cdad1c73e8e	378	}
bfictorie	0:8cdad1c73e8e	379
bfictorie	0:8cdad1c73e8e	380
bfictorie	0:8cdad1c73e8e	381	/*
bfictorie	0:8cdad1c73e8e	382	* lcp_lowerdown - The lower layer is down.
bfictorie	0:8cdad1c73e8e	383	*/
bfictorie	0:8cdad1c73e8e	384	void
bfictorie	0:8cdad1c73e8e	385	lcp_lowerdown(int unit)
bfictorie	0:8cdad1c73e8e	386	{
bfictorie	0:8cdad1c73e8e	387	fsm_lowerdown(&lcp_fsm[unit]);
bfictorie	0:8cdad1c73e8e	388	}
bfictorie	0:8cdad1c73e8e	389
bfictorie	0:8cdad1c73e8e	390
bfictorie	0:8cdad1c73e8e	391	/*
bfictorie	0:8cdad1c73e8e	392	* lcp_input - Input LCP packet.
bfictorie	0:8cdad1c73e8e	393	*/
bfictorie	0:8cdad1c73e8e	394	static void
bfictorie	0:8cdad1c73e8e	395	lcp_input(int unit, u_char *p, int len)
bfictorie	0:8cdad1c73e8e	396	{
bfictorie	0:8cdad1c73e8e	397	fsm *f = &lcp_fsm[unit];
bfictorie	0:8cdad1c73e8e	398
bfictorie	0:8cdad1c73e8e	399	fsm_input(f, p, len);
bfictorie	0:8cdad1c73e8e	400	}
bfictorie	0:8cdad1c73e8e	401
bfictorie	0:8cdad1c73e8e	402
bfictorie	0:8cdad1c73e8e	403	/*
bfictorie	0:8cdad1c73e8e	404	* lcp_extcode - Handle a LCP-specific code.
bfictorie	0:8cdad1c73e8e	405	*/
bfictorie	0:8cdad1c73e8e	406	static int
bfictorie	0:8cdad1c73e8e	407	lcp_extcode(fsm f, int code, u_char id, u_char inp, int len)
bfictorie	0:8cdad1c73e8e	408	{
bfictorie	0:8cdad1c73e8e	409	u_char *magp;
bfictorie	0:8cdad1c73e8e	410
bfictorie	0:8cdad1c73e8e	411	switch( code ){
bfictorie	0:8cdad1c73e8e	412	case PROTREJ:
bfictorie	0:8cdad1c73e8e	413	lcp_rprotrej(f, inp, len);
bfictorie	0:8cdad1c73e8e	414	break;
bfictorie	0:8cdad1c73e8e	415
bfictorie	0:8cdad1c73e8e	416	case ECHOREQ:
bfictorie	0:8cdad1c73e8e	417	if (f->state != LS_OPENED) {
bfictorie	0:8cdad1c73e8e	418	break;
bfictorie	0:8cdad1c73e8e	419	}
bfictorie	0:8cdad1c73e8e	420	LCPDEBUG(LOG_INFO, ("lcp: Echo-Request, Rcvd id %d\n", id));
bfictorie	0:8cdad1c73e8e	421	magp = inp;
bfictorie	0:8cdad1c73e8e	422	PUTLONG(lcp_gotoptions[f->unit].magicnumber, magp);
bfictorie	0:8cdad1c73e8e	423	fsm_sdata(f, ECHOREP, id, inp, len);
bfictorie	0:8cdad1c73e8e	424	break;
bfictorie	0:8cdad1c73e8e	425
bfictorie	0:8cdad1c73e8e	426	case ECHOREP:
bfictorie	0:8cdad1c73e8e	427	lcp_received_echo_reply(f, id, inp, len);
bfictorie	0:8cdad1c73e8e	428	break;
bfictorie	0:8cdad1c73e8e	429
bfictorie	0:8cdad1c73e8e	430	case DISCREQ:
bfictorie	0:8cdad1c73e8e	431	break;
bfictorie	0:8cdad1c73e8e	432
bfictorie	0:8cdad1c73e8e	433	default:
bfictorie	0:8cdad1c73e8e	434	return 0;
bfictorie	0:8cdad1c73e8e	435	}
bfictorie	0:8cdad1c73e8e	436	return 1;
bfictorie	0:8cdad1c73e8e	437	}
bfictorie	0:8cdad1c73e8e	438
bfictorie	0:8cdad1c73e8e	439
bfictorie	0:8cdad1c73e8e	440	/*
bfictorie	0:8cdad1c73e8e	441	* lcp_rprotrej - Receive an Protocol-Reject.
bfictorie	0:8cdad1c73e8e	442	*
bfictorie	0:8cdad1c73e8e	443	* Figure out which protocol is rejected and inform it.
bfictorie	0:8cdad1c73e8e	444	*/
bfictorie	0:8cdad1c73e8e	445	static void
bfictorie	0:8cdad1c73e8e	446	lcp_rprotrej(fsm f, u_char inp, int len)
bfictorie	0:8cdad1c73e8e	447	{
bfictorie	0:8cdad1c73e8e	448	int i;
bfictorie	0:8cdad1c73e8e	449	struct protent *protp;
bfictorie	0:8cdad1c73e8e	450	u_short prot;
bfictorie	0:8cdad1c73e8e	451
bfictorie	0:8cdad1c73e8e	452	if (len < (int)sizeof (u_short)) {
bfictorie	0:8cdad1c73e8e	453	LCPDEBUG(LOG_INFO, ("lcp_rprotrej: Rcvd short Protocol-Reject packet!\n"));
bfictorie	0:8cdad1c73e8e	454	return;
bfictorie	0:8cdad1c73e8e	455	}
bfictorie	0:8cdad1c73e8e	456
bfictorie	0:8cdad1c73e8e	457	GETSHORT(prot, inp);
bfictorie	0:8cdad1c73e8e	458
bfictorie	0:8cdad1c73e8e	459	LCPDEBUG(LOG_INFO, ("lcp_rprotrej: Rcvd Protocol-Reject packet for %x!\n", prot));
bfictorie	0:8cdad1c73e8e	460
bfictorie	0:8cdad1c73e8e	461	/*
bfictorie	0:8cdad1c73e8e	462	* Protocol-Reject packets received in any state other than the LCP
bfictorie	0:8cdad1c73e8e	463	* LS_OPENED state SHOULD be silently discarded.
bfictorie	0:8cdad1c73e8e	464	*/
bfictorie	0:8cdad1c73e8e	465	if( f->state != LS_OPENED ) {
bfictorie	0:8cdad1c73e8e	466	LCPDEBUG(LOG_INFO, ("Protocol-Reject discarded: LCP in state %d\n", f->state));
bfictorie	0:8cdad1c73e8e	467	return;
bfictorie	0:8cdad1c73e8e	468	}
bfictorie	0:8cdad1c73e8e	469
bfictorie	0:8cdad1c73e8e	470	/*
bfictorie	0:8cdad1c73e8e	471	* Upcall the proper Protocol-Reject routine.
bfictorie	0:8cdad1c73e8e	472	*/
bfictorie	0:8cdad1c73e8e	473	for (i = 0; (protp = ppp_protocols[i]) != NULL; ++i) {
bfictorie	0:8cdad1c73e8e	474	if (protp->protocol == prot && protp->enabled_flag) {
bfictorie	0:8cdad1c73e8e	475	(*protp->protrej)(f->unit);
bfictorie	0:8cdad1c73e8e	476	return;
bfictorie	0:8cdad1c73e8e	477	}
bfictorie	0:8cdad1c73e8e	478	}
bfictorie	0:8cdad1c73e8e	479
bfictorie	0:8cdad1c73e8e	480	LCPDEBUG(LOG_WARNING, ("Protocol-Reject for unsupported protocol 0x%x\n", prot));
bfictorie	0:8cdad1c73e8e	481	}
bfictorie	0:8cdad1c73e8e	482
bfictorie	0:8cdad1c73e8e	483
bfictorie	0:8cdad1c73e8e	484	/*
bfictorie	0:8cdad1c73e8e	485	* lcp_protrej - A Protocol-Reject was received.
bfictorie	0:8cdad1c73e8e	486	*/
bfictorie	0:8cdad1c73e8e	487	static void
bfictorie	0:8cdad1c73e8e	488	lcp_protrej(int unit)
bfictorie	0:8cdad1c73e8e	489	{
bfictorie	0:8cdad1c73e8e	490	LWIP_UNUSED_ARG(unit);
bfictorie	0:8cdad1c73e8e	491	/*
bfictorie	0:8cdad1c73e8e	492	* Can't reject LCP!
bfictorie	0:8cdad1c73e8e	493	*/
bfictorie	0:8cdad1c73e8e	494	LCPDEBUG(LOG_WARNING, ("lcp_protrej: Received Protocol-Reject for LCP!\n"));
bfictorie	0:8cdad1c73e8e	495	fsm_protreject(&lcp_fsm[unit]);
bfictorie	0:8cdad1c73e8e	496	}
bfictorie	0:8cdad1c73e8e	497
bfictorie	0:8cdad1c73e8e	498
bfictorie	0:8cdad1c73e8e	499	/*
bfictorie	0:8cdad1c73e8e	500	* lcp_sprotrej - Send a Protocol-Reject for some protocol.
bfictorie	0:8cdad1c73e8e	501	*/
bfictorie	0:8cdad1c73e8e	502	void
bfictorie	0:8cdad1c73e8e	503	lcp_sprotrej(int unit, u_char *p, int len)
bfictorie	0:8cdad1c73e8e	504	{
bfictorie	0:8cdad1c73e8e	505	/*
bfictorie	0:8cdad1c73e8e	506	* Send back the protocol and the information field of the
bfictorie	0:8cdad1c73e8e	507	* rejected packet. We only get here if LCP is in the LS_OPENED state.
bfictorie	0:8cdad1c73e8e	508	*/
bfictorie	0:8cdad1c73e8e	509
bfictorie	0:8cdad1c73e8e	510	fsm_sdata(&lcp_fsm[unit], PROTREJ, ++lcp_fsm[unit].id, p, len);
bfictorie	0:8cdad1c73e8e	511	}
bfictorie	0:8cdad1c73e8e	512
bfictorie	0:8cdad1c73e8e	513
bfictorie	0:8cdad1c73e8e	514	/*
bfictorie	0:8cdad1c73e8e	515	* lcp_resetci - Reset our CI.
bfictorie	0:8cdad1c73e8e	516	*/
bfictorie	0:8cdad1c73e8e	517	static void
bfictorie	0:8cdad1c73e8e	518	lcp_resetci(fsm *f)
bfictorie	0:8cdad1c73e8e	519	{
bfictorie	0:8cdad1c73e8e	520	lcp_wantoptions[f->unit].magicnumber = magic();
bfictorie	0:8cdad1c73e8e	521	lcp_wantoptions[f->unit].numloops = 0;
bfictorie	0:8cdad1c73e8e	522	lcp_gotoptions[f->unit] = lcp_wantoptions[f->unit];
bfictorie	0:8cdad1c73e8e	523	peer_mru[f->unit] = PPP_MRU;
bfictorie	0:8cdad1c73e8e	524	auth_reset(f->unit);
bfictorie	0:8cdad1c73e8e	525	}
bfictorie	0:8cdad1c73e8e	526
bfictorie	0:8cdad1c73e8e	527
bfictorie	0:8cdad1c73e8e	528	/*
bfictorie	0:8cdad1c73e8e	529	* lcp_cilen - Return length of our CI.
bfictorie	0:8cdad1c73e8e	530	*/
bfictorie	0:8cdad1c73e8e	531	static int
bfictorie	0:8cdad1c73e8e	532	lcp_cilen(fsm *f)
bfictorie	0:8cdad1c73e8e	533	{
bfictorie	0:8cdad1c73e8e	534	lcp_options *go = &lcp_gotoptions[f->unit];
bfictorie	0:8cdad1c73e8e	535
bfictorie	0:8cdad1c73e8e	536	#define LENCIVOID(neg) ((neg) ? CILEN_VOID : 0)
bfictorie	0:8cdad1c73e8e	537	#define LENCICHAP(neg) ((neg) ? CILEN_CHAP : 0)
bfictorie	0:8cdad1c73e8e	538	#define LENCISHORT(neg) ((neg) ? CILEN_SHORT : 0)
bfictorie	0:8cdad1c73e8e	539	#define LENCILONG(neg) ((neg) ? CILEN_LONG : 0)
bfictorie	0:8cdad1c73e8e	540	#define LENCILQR(neg) ((neg) ? CILEN_LQR: 0)
bfictorie	0:8cdad1c73e8e	541	#define LENCICBCP(neg) ((neg) ? CILEN_CBCP: 0)
bfictorie	0:8cdad1c73e8e	542	/*
bfictorie	0:8cdad1c73e8e	543	* NB: we only ask for one of CHAP and UPAP, even if we will
bfictorie	0:8cdad1c73e8e	544	* accept either.
bfictorie	0:8cdad1c73e8e	545	*/
bfictorie	0:8cdad1c73e8e	546	return (LENCISHORT(go->neg_mru && go->mru != PPP_DEFMRU) +
bfictorie	0:8cdad1c73e8e	547	LENCILONG(go->neg_asyncmap && go->asyncmap != 0xFFFFFFFFl) +
bfictorie	0:8cdad1c73e8e	548	LENCICHAP(go->neg_chap) +
bfictorie	0:8cdad1c73e8e	549	LENCISHORT(!go->neg_chap && go->neg_upap) +
bfictorie	0:8cdad1c73e8e	550	LENCILQR(go->neg_lqr) +
bfictorie	0:8cdad1c73e8e	551	LENCICBCP(go->neg_cbcp) +
bfictorie	0:8cdad1c73e8e	552	LENCILONG(go->neg_magicnumber) +
bfictorie	0:8cdad1c73e8e	553	LENCIVOID(go->neg_pcompression) +
bfictorie	0:8cdad1c73e8e	554	LENCIVOID(go->neg_accompression));
bfictorie	0:8cdad1c73e8e	555	}
bfictorie	0:8cdad1c73e8e	556
bfictorie	0:8cdad1c73e8e	557
bfictorie	0:8cdad1c73e8e	558	/*
bfictorie	0:8cdad1c73e8e	559	* lcp_addci - Add our desired CIs to a packet.
bfictorie	0:8cdad1c73e8e	560	*/
bfictorie	0:8cdad1c73e8e	561	static void
bfictorie	0:8cdad1c73e8e	562	lcp_addci(fsm f, u_char ucp, int *lenp)
bfictorie	0:8cdad1c73e8e	563	{
bfictorie	0:8cdad1c73e8e	564	lcp_options *go = &lcp_gotoptions[f->unit];
bfictorie	0:8cdad1c73e8e	565	u_char *start_ucp = ucp;
bfictorie	0:8cdad1c73e8e	566
bfictorie	0:8cdad1c73e8e	567	#define ADDCIVOID(opt, neg) \
bfictorie	0:8cdad1c73e8e	568	if (neg) { \
bfictorie	0:8cdad1c73e8e	569	LCPDEBUG(LOG_INFO, ("lcp_addci: opt=%d\n", opt)); \
bfictorie	0:8cdad1c73e8e	570	PUTCHAR(opt, ucp); \
bfictorie	0:8cdad1c73e8e	571	PUTCHAR(CILEN_VOID, ucp); \
bfictorie	0:8cdad1c73e8e	572	}
bfictorie	0:8cdad1c73e8e	573	#define ADDCISHORT(opt, neg, val) \
bfictorie	0:8cdad1c73e8e	574	if (neg) { \
bfictorie	0:8cdad1c73e8e	575	LCPDEBUG(LOG_INFO, ("lcp_addci: INT opt=%d %X\n", opt, val)); \
bfictorie	0:8cdad1c73e8e	576	PUTCHAR(opt, ucp); \
bfictorie	0:8cdad1c73e8e	577	PUTCHAR(CILEN_SHORT, ucp); \
bfictorie	0:8cdad1c73e8e	578	PUTSHORT(val, ucp); \
bfictorie	0:8cdad1c73e8e	579	}
bfictorie	0:8cdad1c73e8e	580	#define ADDCICHAP(opt, neg, val, digest) \
bfictorie	0:8cdad1c73e8e	581	if (neg) { \
bfictorie	0:8cdad1c73e8e	582	LCPDEBUG(LOG_INFO, ("lcp_addci: CHAP opt=%d %X\n", opt, val)); \
bfictorie	0:8cdad1c73e8e	583	PUTCHAR(opt, ucp); \
bfictorie	0:8cdad1c73e8e	584	PUTCHAR(CILEN_CHAP, ucp); \
bfictorie	0:8cdad1c73e8e	585	PUTSHORT(val, ucp); \
bfictorie	0:8cdad1c73e8e	586	PUTCHAR(digest, ucp); \
bfictorie	0:8cdad1c73e8e	587	}
bfictorie	0:8cdad1c73e8e	588	#define ADDCILONG(opt, neg, val) \
bfictorie	0:8cdad1c73e8e	589	if (neg) { \
bfictorie	0:8cdad1c73e8e	590	LCPDEBUG(LOG_INFO, ("lcp_addci: L opt=%d %lX\n", opt, val)); \
bfictorie	0:8cdad1c73e8e	591	PUTCHAR(opt, ucp); \
bfictorie	0:8cdad1c73e8e	592	PUTCHAR(CILEN_LONG, ucp); \
bfictorie	0:8cdad1c73e8e	593	PUTLONG(val, ucp); \
bfictorie	0:8cdad1c73e8e	594	}
bfictorie	0:8cdad1c73e8e	595	#define ADDCILQR(opt, neg, val) \
bfictorie	0:8cdad1c73e8e	596	if (neg) { \
bfictorie	0:8cdad1c73e8e	597	LCPDEBUG(LOG_INFO, ("lcp_addci: LQR opt=%d %lX\n", opt, val)); \
bfictorie	0:8cdad1c73e8e	598	PUTCHAR(opt, ucp); \
bfictorie	0:8cdad1c73e8e	599	PUTCHAR(CILEN_LQR, ucp); \
bfictorie	0:8cdad1c73e8e	600	PUTSHORT(PPP_LQR, ucp); \
bfictorie	0:8cdad1c73e8e	601	PUTLONG(val, ucp); \
bfictorie	0:8cdad1c73e8e	602	}
bfictorie	0:8cdad1c73e8e	603	#define ADDCICHAR(opt, neg, val) \
bfictorie	0:8cdad1c73e8e	604	if (neg) { \
bfictorie	0:8cdad1c73e8e	605	LCPDEBUG(LOG_INFO, ("lcp_addci: CHAR opt=%d %X '%z'\n", opt, val, val)); \
bfictorie	0:8cdad1c73e8e	606	PUTCHAR(opt, ucp); \
bfictorie	0:8cdad1c73e8e	607	PUTCHAR(CILEN_CHAR, ucp); \
bfictorie	0:8cdad1c73e8e	608	PUTCHAR(val, ucp); \
bfictorie	0:8cdad1c73e8e	609	}
bfictorie	0:8cdad1c73e8e	610
bfictorie	0:8cdad1c73e8e	611	ADDCISHORT(CI_MRU, go->neg_mru && go->mru != PPP_DEFMRU, go->mru);
bfictorie	0:8cdad1c73e8e	612	ADDCILONG(CI_ASYNCMAP, go->neg_asyncmap && go->asyncmap != 0xFFFFFFFFl, go->asyncmap);
bfictorie	0:8cdad1c73e8e	613	ADDCICHAP(CI_AUTHTYPE, go->neg_chap, PPP_CHAP, go->chap_mdtype);
bfictorie	0:8cdad1c73e8e	614	ADDCISHORT(CI_AUTHTYPE, !go->neg_chap && go->neg_upap, PPP_PAP);
bfictorie	0:8cdad1c73e8e	615	ADDCILQR(CI_QUALITY, go->neg_lqr, go->lqr_period);
bfictorie	0:8cdad1c73e8e	616	ADDCICHAR(CI_CALLBACK, go->neg_cbcp, CBCP_OPT);
bfictorie	0:8cdad1c73e8e	617	ADDCILONG(CI_MAGICNUMBER, go->neg_magicnumber, go->magicnumber);
bfictorie	0:8cdad1c73e8e	618	ADDCIVOID(CI_PCOMPRESSION, go->neg_pcompression);
bfictorie	0:8cdad1c73e8e	619	ADDCIVOID(CI_ACCOMPRESSION, go->neg_accompression);
bfictorie	0:8cdad1c73e8e	620
bfictorie	0:8cdad1c73e8e	621	if (ucp - start_ucp != *lenp) {
bfictorie	0:8cdad1c73e8e	622	/* this should never happen, because peer_mtu should be 1500 */
bfictorie	0:8cdad1c73e8e	623	LCPDEBUG(LOG_ERR, ("Bug in lcp_addci: wrong length\n"));
bfictorie	0:8cdad1c73e8e	624	}
bfictorie	0:8cdad1c73e8e	625	}
bfictorie	0:8cdad1c73e8e	626
bfictorie	0:8cdad1c73e8e	627
bfictorie	0:8cdad1c73e8e	628	/*
bfictorie	0:8cdad1c73e8e	629	* lcp_ackci - Ack our CIs.
bfictorie	0:8cdad1c73e8e	630	* This should not modify any state if the Ack is bad.
bfictorie	0:8cdad1c73e8e	631	*
bfictorie	0:8cdad1c73e8e	632	* Returns:
bfictorie	0:8cdad1c73e8e	633	* 0 - Ack was bad.
bfictorie	0:8cdad1c73e8e	634	* 1 - Ack was good.
bfictorie	0:8cdad1c73e8e	635	*/
bfictorie	0:8cdad1c73e8e	636	static int
bfictorie	0:8cdad1c73e8e	637	lcp_ackci(fsm f, u_char p, int len)
bfictorie	0:8cdad1c73e8e	638	{
bfictorie	0:8cdad1c73e8e	639	lcp_options *go = &lcp_gotoptions[f->unit];
bfictorie	0:8cdad1c73e8e	640	u_char cilen, citype, cichar;
bfictorie	0:8cdad1c73e8e	641	u_short cishort;
bfictorie	0:8cdad1c73e8e	642	u32_t cilong;
bfictorie	0:8cdad1c73e8e	643
bfictorie	0:8cdad1c73e8e	644	/*
bfictorie	0:8cdad1c73e8e	645	* CIs must be in exactly the same order that we sent.
bfictorie	0:8cdad1c73e8e	646	* Check packet length and CI length at each step.
bfictorie	0:8cdad1c73e8e	647	* If we find any deviations, then this packet is bad.
bfictorie	0:8cdad1c73e8e	648	*/
bfictorie	0:8cdad1c73e8e	649	#define ACKCIVOID(opt, neg) \
bfictorie	0:8cdad1c73e8e	650	if (neg) { \
bfictorie	0:8cdad1c73e8e	651	if ((len -= CILEN_VOID) < 0) \
bfictorie	0:8cdad1c73e8e	652	goto bad; \
bfictorie	0:8cdad1c73e8e	653	GETCHAR(citype, p); \
bfictorie	0:8cdad1c73e8e	654	GETCHAR(cilen, p); \
bfictorie	0:8cdad1c73e8e	655	if (cilen != CILEN_VOID \|\| citype != opt) \
bfictorie	0:8cdad1c73e8e	656	goto bad; \
bfictorie	0:8cdad1c73e8e	657	}
bfictorie	0:8cdad1c73e8e	658	#define ACKCISHORT(opt, neg, val) \
bfictorie	0:8cdad1c73e8e	659	if (neg) { \
bfictorie	0:8cdad1c73e8e	660	if ((len -= CILEN_SHORT) < 0) \
bfictorie	0:8cdad1c73e8e	661	goto bad; \
bfictorie	0:8cdad1c73e8e	662	GETCHAR(citype, p); \
bfictorie	0:8cdad1c73e8e	663	GETCHAR(cilen, p); \
bfictorie	0:8cdad1c73e8e	664	if (cilen != CILEN_SHORT \|\| citype != opt) \
bfictorie	0:8cdad1c73e8e	665	goto bad; \
bfictorie	0:8cdad1c73e8e	666	GETSHORT(cishort, p); \
bfictorie	0:8cdad1c73e8e	667	if (cishort != val) \
bfictorie	0:8cdad1c73e8e	668	goto bad; \
bfictorie	0:8cdad1c73e8e	669	}
bfictorie	0:8cdad1c73e8e	670	#define ACKCICHAR(opt, neg, val) \
bfictorie	0:8cdad1c73e8e	671	if (neg) { \
bfictorie	0:8cdad1c73e8e	672	if ((len -= CILEN_CHAR) < 0) \
bfictorie	0:8cdad1c73e8e	673	goto bad; \
bfictorie	0:8cdad1c73e8e	674	GETCHAR(citype, p); \
bfictorie	0:8cdad1c73e8e	675	GETCHAR(cilen, p); \
bfictorie	0:8cdad1c73e8e	676	if (cilen != CILEN_CHAR \|\| citype != opt) \
bfictorie	0:8cdad1c73e8e	677	goto bad; \
bfictorie	0:8cdad1c73e8e	678	GETCHAR(cichar, p); \
bfictorie	0:8cdad1c73e8e	679	if (cichar != val) \
bfictorie	0:8cdad1c73e8e	680	goto bad; \
bfictorie	0:8cdad1c73e8e	681	}
bfictorie	0:8cdad1c73e8e	682	#define ACKCICHAP(opt, neg, val, digest) \
bfictorie	0:8cdad1c73e8e	683	if (neg) { \
bfictorie	0:8cdad1c73e8e	684	if ((len -= CILEN_CHAP) < 0) \
bfictorie	0:8cdad1c73e8e	685	goto bad; \
bfictorie	0:8cdad1c73e8e	686	GETCHAR(citype, p); \
bfictorie	0:8cdad1c73e8e	687	GETCHAR(cilen, p); \
bfictorie	0:8cdad1c73e8e	688	if (cilen != CILEN_CHAP \|\| citype != opt) \
bfictorie	0:8cdad1c73e8e	689	goto bad; \
bfictorie	0:8cdad1c73e8e	690	GETSHORT(cishort, p); \
bfictorie	0:8cdad1c73e8e	691	if (cishort != val) \
bfictorie	0:8cdad1c73e8e	692	goto bad; \
bfictorie	0:8cdad1c73e8e	693	GETCHAR(cichar, p); \
bfictorie	0:8cdad1c73e8e	694	if (cichar != digest) \
bfictorie	0:8cdad1c73e8e	695	goto bad; \
bfictorie	0:8cdad1c73e8e	696	}
bfictorie	0:8cdad1c73e8e	697	#define ACKCILONG(opt, neg, val) \
bfictorie	0:8cdad1c73e8e	698	if (neg) { \
bfictorie	0:8cdad1c73e8e	699	if ((len -= CILEN_LONG) < 0) \
bfictorie	0:8cdad1c73e8e	700	goto bad; \
bfictorie	0:8cdad1c73e8e	701	GETCHAR(citype, p); \
bfictorie	0:8cdad1c73e8e	702	GETCHAR(cilen, p); \
bfictorie	0:8cdad1c73e8e	703	if (cilen != CILEN_LONG \|\| citype != opt) \
bfictorie	0:8cdad1c73e8e	704	goto bad; \
bfictorie	0:8cdad1c73e8e	705	GETLONG(cilong, p); \
bfictorie	0:8cdad1c73e8e	706	if (cilong != val) \
bfictorie	0:8cdad1c73e8e	707	goto bad; \
bfictorie	0:8cdad1c73e8e	708	}
bfictorie	0:8cdad1c73e8e	709	#define ACKCILQR(opt, neg, val) \
bfictorie	0:8cdad1c73e8e	710	if (neg) { \
bfictorie	0:8cdad1c73e8e	711	if ((len -= CILEN_LQR) < 0) \
bfictorie	0:8cdad1c73e8e	712	goto bad; \
bfictorie	0:8cdad1c73e8e	713	GETCHAR(citype, p); \
bfictorie	0:8cdad1c73e8e	714	GETCHAR(cilen, p); \
bfictorie	0:8cdad1c73e8e	715	if (cilen != CILEN_LQR \|\| citype != opt) \
bfictorie	0:8cdad1c73e8e	716	goto bad; \
bfictorie	0:8cdad1c73e8e	717	GETSHORT(cishort, p); \
bfictorie	0:8cdad1c73e8e	718	if (cishort != PPP_LQR) \
bfictorie	0:8cdad1c73e8e	719	goto bad; \
bfictorie	0:8cdad1c73e8e	720	GETLONG(cilong, p); \
bfictorie	0:8cdad1c73e8e	721	if (cilong != val) \
bfictorie	0:8cdad1c73e8e	722	goto bad; \
bfictorie	0:8cdad1c73e8e	723	}
bfictorie	0:8cdad1c73e8e	724
bfictorie	0:8cdad1c73e8e	725	ACKCISHORT(CI_MRU, go->neg_mru && go->mru != PPP_DEFMRU, go->mru);
bfictorie	0:8cdad1c73e8e	726	ACKCILONG(CI_ASYNCMAP, go->neg_asyncmap && go->asyncmap != 0xFFFFFFFFl, go->asyncmap);
bfictorie	0:8cdad1c73e8e	727	ACKCICHAP(CI_AUTHTYPE, go->neg_chap, PPP_CHAP, go->chap_mdtype);
bfictorie	0:8cdad1c73e8e	728	ACKCISHORT(CI_AUTHTYPE, !go->neg_chap && go->neg_upap, PPP_PAP);
bfictorie	0:8cdad1c73e8e	729	ACKCILQR(CI_QUALITY, go->neg_lqr, go->lqr_period);
bfictorie	0:8cdad1c73e8e	730	ACKCICHAR(CI_CALLBACK, go->neg_cbcp, CBCP_OPT);
bfictorie	0:8cdad1c73e8e	731	ACKCILONG(CI_MAGICNUMBER, go->neg_magicnumber, go->magicnumber);
bfictorie	0:8cdad1c73e8e	732	ACKCIVOID(CI_PCOMPRESSION, go->neg_pcompression);
bfictorie	0:8cdad1c73e8e	733	ACKCIVOID(CI_ACCOMPRESSION, go->neg_accompression);
bfictorie	0:8cdad1c73e8e	734
bfictorie	0:8cdad1c73e8e	735	/*
bfictorie	0:8cdad1c73e8e	736	* If there are any remaining CIs, then this packet is bad.
bfictorie	0:8cdad1c73e8e	737	*/
bfictorie	0:8cdad1c73e8e	738	if (len != 0) {
bfictorie	0:8cdad1c73e8e	739	goto bad;
bfictorie	0:8cdad1c73e8e	740	}
bfictorie	0:8cdad1c73e8e	741	LCPDEBUG(LOG_INFO, ("lcp_acki: Ack\n"));
bfictorie	0:8cdad1c73e8e	742	return (1);
bfictorie	0:8cdad1c73e8e	743	bad:
bfictorie	0:8cdad1c73e8e	744	LCPDEBUG(LOG_WARNING, ("lcp_acki: received bad Ack!\n"));
bfictorie	0:8cdad1c73e8e	745	return (0);
bfictorie	0:8cdad1c73e8e	746	}
bfictorie	0:8cdad1c73e8e	747
bfictorie	0:8cdad1c73e8e	748
bfictorie	0:8cdad1c73e8e	749	/*
bfictorie	0:8cdad1c73e8e	750	* lcp_nakci - Peer has sent a NAK for some of our CIs.
bfictorie	0:8cdad1c73e8e	751	* This should not modify any state if the Nak is bad
bfictorie	0:8cdad1c73e8e	752	* or if LCP is in the LS_OPENED state.
bfictorie	0:8cdad1c73e8e	753	*
bfictorie	0:8cdad1c73e8e	754	* Returns:
bfictorie	0:8cdad1c73e8e	755	* 0 - Nak was bad.
bfictorie	0:8cdad1c73e8e	756	* 1 - Nak was good.
bfictorie	0:8cdad1c73e8e	757	*/
bfictorie	0:8cdad1c73e8e	758	static int
bfictorie	0:8cdad1c73e8e	759	lcp_nakci(fsm f, u_char p, int len)
bfictorie	0:8cdad1c73e8e	760	{
bfictorie	0:8cdad1c73e8e	761	lcp_options *go = &lcp_gotoptions[f->unit];
bfictorie	0:8cdad1c73e8e	762	lcp_options *wo = &lcp_wantoptions[f->unit];
bfictorie	0:8cdad1c73e8e	763	u_char citype, cichar, *next;
bfictorie	0:8cdad1c73e8e	764	u_short cishort;
bfictorie	0:8cdad1c73e8e	765	u32_t cilong;
bfictorie	0:8cdad1c73e8e	766	lcp_options no; /* options we've seen Naks for */
bfictorie	0:8cdad1c73e8e	767	lcp_options try; /* options to request next time */
bfictorie	0:8cdad1c73e8e	768	int looped_back = 0;
bfictorie	0:8cdad1c73e8e	769	int cilen;
bfictorie	0:8cdad1c73e8e	770
bfictorie	0:8cdad1c73e8e	771	BZERO(&no, sizeof(no));
bfictorie	0:8cdad1c73e8e	772	try = *go;
bfictorie	0:8cdad1c73e8e	773
bfictorie	0:8cdad1c73e8e	774	/*
bfictorie	0:8cdad1c73e8e	775	* Any Nak'd CIs must be in exactly the same order that we sent.
bfictorie	0:8cdad1c73e8e	776	* Check packet length and CI length at each step.
bfictorie	0:8cdad1c73e8e	777	* If we find any deviations, then this packet is bad.
bfictorie	0:8cdad1c73e8e	778	*/
bfictorie	0:8cdad1c73e8e	779	#define NAKCIVOID(opt, neg, code) \
bfictorie	0:8cdad1c73e8e	780	if (go->neg && \
bfictorie	0:8cdad1c73e8e	781	len >= CILEN_VOID && \
bfictorie	0:8cdad1c73e8e	782	p[1] == CILEN_VOID && \
bfictorie	0:8cdad1c73e8e	783	p[0] == opt) { \
bfictorie	0:8cdad1c73e8e	784	len -= CILEN_VOID; \
bfictorie	0:8cdad1c73e8e	785	INCPTR(CILEN_VOID, p); \
bfictorie	0:8cdad1c73e8e	786	no.neg = 1; \
bfictorie	0:8cdad1c73e8e	787	code \
bfictorie	0:8cdad1c73e8e	788	}
bfictorie	0:8cdad1c73e8e	789	#define NAKCICHAP(opt, neg, code) \
bfictorie	0:8cdad1c73e8e	790	if (go->neg && \
bfictorie	0:8cdad1c73e8e	791	len >= CILEN_CHAP && \
bfictorie	0:8cdad1c73e8e	792	p[1] == CILEN_CHAP && \
bfictorie	0:8cdad1c73e8e	793	p[0] == opt) { \
bfictorie	0:8cdad1c73e8e	794	len -= CILEN_CHAP; \
bfictorie	0:8cdad1c73e8e	795	INCPTR(2, p); \
bfictorie	0:8cdad1c73e8e	796	GETSHORT(cishort, p); \
bfictorie	0:8cdad1c73e8e	797	GETCHAR(cichar, p); \
bfictorie	0:8cdad1c73e8e	798	no.neg = 1; \
bfictorie	0:8cdad1c73e8e	799	code \
bfictorie	0:8cdad1c73e8e	800	}
bfictorie	0:8cdad1c73e8e	801	#define NAKCICHAR(opt, neg, code) \
bfictorie	0:8cdad1c73e8e	802	if (go->neg && \
bfictorie	0:8cdad1c73e8e	803	len >= CILEN_CHAR && \
bfictorie	0:8cdad1c73e8e	804	p[1] == CILEN_CHAR && \
bfictorie	0:8cdad1c73e8e	805	p[0] == opt) { \
bfictorie	0:8cdad1c73e8e	806	len -= CILEN_CHAR; \
bfictorie	0:8cdad1c73e8e	807	INCPTR(2, p); \
bfictorie	0:8cdad1c73e8e	808	GETCHAR(cichar, p); \
bfictorie	0:8cdad1c73e8e	809	no.neg = 1; \
bfictorie	0:8cdad1c73e8e	810	code \
bfictorie	0:8cdad1c73e8e	811	}
bfictorie	0:8cdad1c73e8e	812	#define NAKCISHORT(opt, neg, code) \
bfictorie	0:8cdad1c73e8e	813	if (go->neg && \
bfictorie	0:8cdad1c73e8e	814	len >= CILEN_SHORT && \
bfictorie	0:8cdad1c73e8e	815	p[1] == CILEN_SHORT && \
bfictorie	0:8cdad1c73e8e	816	p[0] == opt) { \
bfictorie	0:8cdad1c73e8e	817	len -= CILEN_SHORT; \
bfictorie	0:8cdad1c73e8e	818	INCPTR(2, p); \
bfictorie	0:8cdad1c73e8e	819	GETSHORT(cishort, p); \
bfictorie	0:8cdad1c73e8e	820	no.neg = 1; \
bfictorie	0:8cdad1c73e8e	821	code \
bfictorie	0:8cdad1c73e8e	822	}
bfictorie	0:8cdad1c73e8e	823	#define NAKCILONG(opt, neg, code) \
bfictorie	0:8cdad1c73e8e	824	if (go->neg && \
bfictorie	0:8cdad1c73e8e	825	len >= CILEN_LONG && \
bfictorie	0:8cdad1c73e8e	826	p[1] == CILEN_LONG && \
bfictorie	0:8cdad1c73e8e	827	p[0] == opt) { \
bfictorie	0:8cdad1c73e8e	828	len -= CILEN_LONG; \
bfictorie	0:8cdad1c73e8e	829	INCPTR(2, p); \
bfictorie	0:8cdad1c73e8e	830	GETLONG(cilong, p); \
bfictorie	0:8cdad1c73e8e	831	no.neg = 1; \
bfictorie	0:8cdad1c73e8e	832	code \
bfictorie	0:8cdad1c73e8e	833	}
bfictorie	0:8cdad1c73e8e	834	#define NAKCILQR(opt, neg, code) \
bfictorie	0:8cdad1c73e8e	835	if (go->neg && \
bfictorie	0:8cdad1c73e8e	836	len >= CILEN_LQR && \
bfictorie	0:8cdad1c73e8e	837	p[1] == CILEN_LQR && \
bfictorie	0:8cdad1c73e8e	838	p[0] == opt) { \
bfictorie	0:8cdad1c73e8e	839	len -= CILEN_LQR; \
bfictorie	0:8cdad1c73e8e	840	INCPTR(2, p); \
bfictorie	0:8cdad1c73e8e	841	GETSHORT(cishort, p); \
bfictorie	0:8cdad1c73e8e	842	GETLONG(cilong, p); \
bfictorie	0:8cdad1c73e8e	843	no.neg = 1; \
bfictorie	0:8cdad1c73e8e	844	code \
bfictorie	0:8cdad1c73e8e	845	}
bfictorie	0:8cdad1c73e8e	846
bfictorie	0:8cdad1c73e8e	847	/*
bfictorie	0:8cdad1c73e8e	848	* We don't care if they want to send us smaller packets than
bfictorie	0:8cdad1c73e8e	849	* we want. Therefore, accept any MRU less than what we asked for,
bfictorie	0:8cdad1c73e8e	850	* but then ignore the new value when setting the MRU in the kernel.
bfictorie	0:8cdad1c73e8e	851	* If they send us a bigger MRU than what we asked, accept it, up to
bfictorie	0:8cdad1c73e8e	852	* the limit of the default MRU we'd get if we didn't negotiate.
bfictorie	0:8cdad1c73e8e	853	*/
bfictorie	0:8cdad1c73e8e	854	if (go->neg_mru && go->mru != PPP_DEFMRU) {
bfictorie	0:8cdad1c73e8e	855	NAKCISHORT(CI_MRU, neg_mru,
bfictorie	0:8cdad1c73e8e	856	if (cishort <= wo->mru \|\| cishort < PPP_DEFMRU) {
bfictorie	0:8cdad1c73e8e	857	try.mru = cishort;
bfictorie	0:8cdad1c73e8e	858	}
bfictorie	0:8cdad1c73e8e	859	);
bfictorie	0:8cdad1c73e8e	860	}
bfictorie	0:8cdad1c73e8e	861
bfictorie	0:8cdad1c73e8e	862	/*
bfictorie	0:8cdad1c73e8e	863	* Add any characters they want to our (receive-side) asyncmap.
bfictorie	0:8cdad1c73e8e	864	*/
bfictorie	0:8cdad1c73e8e	865	if (go->neg_asyncmap && go->asyncmap != 0xFFFFFFFFl) {
bfictorie	0:8cdad1c73e8e	866	NAKCILONG(CI_ASYNCMAP, neg_asyncmap,
bfictorie	0:8cdad1c73e8e	867	try.asyncmap = go->asyncmap \| cilong;
bfictorie	0:8cdad1c73e8e	868	);
bfictorie	0:8cdad1c73e8e	869	}
bfictorie	0:8cdad1c73e8e	870
bfictorie	0:8cdad1c73e8e	871	/*
bfictorie	0:8cdad1c73e8e	872	* If they've nak'd our authentication-protocol, check whether
bfictorie	0:8cdad1c73e8e	873	* they are proposing a different protocol, or a different
bfictorie	0:8cdad1c73e8e	874	* hash algorithm for CHAP.
bfictorie	0:8cdad1c73e8e	875	*/
bfictorie	0:8cdad1c73e8e	876	if ((go->neg_chap \|\| go->neg_upap)
bfictorie	0:8cdad1c73e8e	877	&& len >= CILEN_SHORT
bfictorie	0:8cdad1c73e8e	878	&& p[0] == CI_AUTHTYPE && p[1] >= CILEN_SHORT && p[1] <= len) {
bfictorie	0:8cdad1c73e8e	879	cilen = p[1];
bfictorie	0:8cdad1c73e8e	880	len -= cilen;
bfictorie	0:8cdad1c73e8e	881	no.neg_chap = go->neg_chap;
bfictorie	0:8cdad1c73e8e	882	no.neg_upap = go->neg_upap;
bfictorie	0:8cdad1c73e8e	883	INCPTR(2, p);
bfictorie	0:8cdad1c73e8e	884	GETSHORT(cishort, p);
bfictorie	0:8cdad1c73e8e	885	if (cishort == PPP_PAP && cilen == CILEN_SHORT) {
bfictorie	0:8cdad1c73e8e	886	/*
bfictorie	0:8cdad1c73e8e	887	* If we were asking for CHAP, they obviously don't want to do it.
bfictorie	0:8cdad1c73e8e	888	* If we weren't asking for CHAP, then we were asking for PAP,
bfictorie	0:8cdad1c73e8e	889	* in which case this Nak is bad.
bfictorie	0:8cdad1c73e8e	890	*/
bfictorie	0:8cdad1c73e8e	891	if (!go->neg_chap) {
bfictorie	0:8cdad1c73e8e	892	goto bad;
bfictorie	0:8cdad1c73e8e	893	}
bfictorie	0:8cdad1c73e8e	894	try.neg_chap = 0;
bfictorie	0:8cdad1c73e8e	895
bfictorie	0:8cdad1c73e8e	896	} else if (cishort == PPP_CHAP && cilen == CILEN_CHAP) {
bfictorie	0:8cdad1c73e8e	897	GETCHAR(cichar, p);
bfictorie	0:8cdad1c73e8e	898	if (go->neg_chap) {
bfictorie	0:8cdad1c73e8e	899	/*
bfictorie	0:8cdad1c73e8e	900	* We were asking for CHAP/MD5; they must want a different
bfictorie	0:8cdad1c73e8e	901	* algorithm. If they can't do MD5, we'll have to stop
bfictorie	0:8cdad1c73e8e	902	* asking for CHAP.
bfictorie	0:8cdad1c73e8e	903	*/
bfictorie	0:8cdad1c73e8e	904	if (cichar != go->chap_mdtype) {
bfictorie	0:8cdad1c73e8e	905	try.neg_chap = 0;
bfictorie	0:8cdad1c73e8e	906	}
bfictorie	0:8cdad1c73e8e	907	} else {
bfictorie	0:8cdad1c73e8e	908	/*
bfictorie	0:8cdad1c73e8e	909	* Stop asking for PAP if we were asking for it.
bfictorie	0:8cdad1c73e8e	910	*/
bfictorie	0:8cdad1c73e8e	911	try.neg_upap = 0;
bfictorie	0:8cdad1c73e8e	912	}
bfictorie	0:8cdad1c73e8e	913
bfictorie	0:8cdad1c73e8e	914	} else {
bfictorie	0:8cdad1c73e8e	915	/*
bfictorie	0:8cdad1c73e8e	916	* We don't recognize what they're suggesting.
bfictorie	0:8cdad1c73e8e	917	* Stop asking for what we were asking for.
bfictorie	0:8cdad1c73e8e	918	*/
bfictorie	0:8cdad1c73e8e	919	if (go->neg_chap) {
bfictorie	0:8cdad1c73e8e	920	try.neg_chap = 0;
bfictorie	0:8cdad1c73e8e	921	} else {
bfictorie	0:8cdad1c73e8e	922	try.neg_upap = 0;
bfictorie	0:8cdad1c73e8e	923	}
bfictorie	0:8cdad1c73e8e	924	p += cilen - CILEN_SHORT;
bfictorie	0:8cdad1c73e8e	925	}
bfictorie	0:8cdad1c73e8e	926	}
bfictorie	0:8cdad1c73e8e	927
bfictorie	0:8cdad1c73e8e	928	/*
bfictorie	0:8cdad1c73e8e	929	* If they can't cope with our link quality protocol, we'll have
bfictorie	0:8cdad1c73e8e	930	* to stop asking for LQR. We haven't got any other protocol.
bfictorie	0:8cdad1c73e8e	931	* If they Nak the reporting period, take their value XXX ?
bfictorie	0:8cdad1c73e8e	932	*/
bfictorie	0:8cdad1c73e8e	933	NAKCILQR(CI_QUALITY, neg_lqr,
bfictorie	0:8cdad1c73e8e	934	if (cishort != PPP_LQR) {
bfictorie	0:8cdad1c73e8e	935	try.neg_lqr = 0;
bfictorie	0:8cdad1c73e8e	936	} else {
bfictorie	0:8cdad1c73e8e	937	try.lqr_period = cilong;
bfictorie	0:8cdad1c73e8e	938	}
bfictorie	0:8cdad1c73e8e	939	);
bfictorie	0:8cdad1c73e8e	940
bfictorie	0:8cdad1c73e8e	941	/*
bfictorie	0:8cdad1c73e8e	942	* Only implementing CBCP...not the rest of the callback options
bfictorie	0:8cdad1c73e8e	943	*/
bfictorie	0:8cdad1c73e8e	944	NAKCICHAR(CI_CALLBACK, neg_cbcp,
bfictorie	0:8cdad1c73e8e	945	try.neg_cbcp = 0;
bfictorie	0:8cdad1c73e8e	946	);
bfictorie	0:8cdad1c73e8e	947
bfictorie	0:8cdad1c73e8e	948	/*
bfictorie	0:8cdad1c73e8e	949	* Check for a looped-back line.
bfictorie	0:8cdad1c73e8e	950	*/
bfictorie	0:8cdad1c73e8e	951	NAKCILONG(CI_MAGICNUMBER, neg_magicnumber,
bfictorie	0:8cdad1c73e8e	952	try.magicnumber = magic();
bfictorie	0:8cdad1c73e8e	953	looped_back = 1;
bfictorie	0:8cdad1c73e8e	954	);
bfictorie	0:8cdad1c73e8e	955
bfictorie	0:8cdad1c73e8e	956	/*
bfictorie	0:8cdad1c73e8e	957	* Peer shouldn't send Nak for protocol compression or
bfictorie	0:8cdad1c73e8e	958	* address/control compression requests; they should send
bfictorie	0:8cdad1c73e8e	959	* a Reject instead. If they send a Nak, treat it as a Reject.
bfictorie	0:8cdad1c73e8e	960	*/
bfictorie	0:8cdad1c73e8e	961	NAKCIVOID(CI_PCOMPRESSION, neg_pcompression,
bfictorie	0:8cdad1c73e8e	962	try.neg_pcompression = 0;
bfictorie	0:8cdad1c73e8e	963	);
bfictorie	0:8cdad1c73e8e	964	NAKCIVOID(CI_ACCOMPRESSION, neg_accompression,
bfictorie	0:8cdad1c73e8e	965	try.neg_accompression = 0;
bfictorie	0:8cdad1c73e8e	966	);
bfictorie	0:8cdad1c73e8e	967
bfictorie	0:8cdad1c73e8e	968	/*
bfictorie	0:8cdad1c73e8e	969	* There may be remaining CIs, if the peer is requesting negotiation
bfictorie	0:8cdad1c73e8e	970	* on an option that we didn't include in our request packet.
bfictorie	0:8cdad1c73e8e	971	* If we see an option that we requested, or one we've already seen
bfictorie	0:8cdad1c73e8e	972	* in this packet, then this packet is bad.
bfictorie	0:8cdad1c73e8e	973	* If we wanted to respond by starting to negotiate on the requested
bfictorie	0:8cdad1c73e8e	974	* option(s), we could, but we don't, because except for the
bfictorie	0:8cdad1c73e8e	975	* authentication type and quality protocol, if we are not negotiating
bfictorie	0:8cdad1c73e8e	976	* an option, it is because we were told not to.
bfictorie	0:8cdad1c73e8e	977	* For the authentication type, the Nak from the peer means
bfictorie	0:8cdad1c73e8e	978	* `let me authenticate myself with you' which is a bit pointless.
bfictorie	0:8cdad1c73e8e	979	* For the quality protocol, the Nak means `ask me to send you quality
bfictorie	0:8cdad1c73e8e	980	* reports', but if we didn't ask for them, we don't want them.
bfictorie	0:8cdad1c73e8e	981	* An option we don't recognize represents the peer asking to
bfictorie	0:8cdad1c73e8e	982	* negotiate some option we don't support, so ignore it.
bfictorie	0:8cdad1c73e8e	983	*/
bfictorie	0:8cdad1c73e8e	984	while (len > CILEN_VOID) {
bfictorie	0:8cdad1c73e8e	985	GETCHAR(citype, p);
bfictorie	0:8cdad1c73e8e	986	GETCHAR(cilen, p);
bfictorie	0:8cdad1c73e8e	987	if (cilen < CILEN_VOID \|\| (len -= cilen) < 0) {
bfictorie	0:8cdad1c73e8e	988	goto bad;
bfictorie	0:8cdad1c73e8e	989	}
bfictorie	0:8cdad1c73e8e	990	next = p + cilen - 2;
bfictorie	0:8cdad1c73e8e	991
bfictorie	0:8cdad1c73e8e	992	switch (citype) {
bfictorie	0:8cdad1c73e8e	993	case CI_MRU:
bfictorie	0:8cdad1c73e8e	994	if ((go->neg_mru && go->mru != PPP_DEFMRU)
bfictorie	0:8cdad1c73e8e	995	\|\| no.neg_mru \|\| cilen != CILEN_SHORT) {
bfictorie	0:8cdad1c73e8e	996	goto bad;
bfictorie	0:8cdad1c73e8e	997	}
bfictorie	0:8cdad1c73e8e	998	GETSHORT(cishort, p);
bfictorie	0:8cdad1c73e8e	999	if (cishort < PPP_DEFMRU) {
bfictorie	0:8cdad1c73e8e	1000	try.mru = cishort;
bfictorie	0:8cdad1c73e8e	1001	}
bfictorie	0:8cdad1c73e8e	1002	break;
bfictorie	0:8cdad1c73e8e	1003	case CI_ASYNCMAP:
bfictorie	0:8cdad1c73e8e	1004	if ((go->neg_asyncmap && go->asyncmap != 0xFFFFFFFFl)
bfictorie	0:8cdad1c73e8e	1005	\|\| no.neg_asyncmap \|\| cilen != CILEN_LONG) {
bfictorie	0:8cdad1c73e8e	1006	goto bad;
bfictorie	0:8cdad1c73e8e	1007	}
bfictorie	0:8cdad1c73e8e	1008	break;
bfictorie	0:8cdad1c73e8e	1009	case CI_AUTHTYPE:
bfictorie	0:8cdad1c73e8e	1010	if (go->neg_chap \|\| no.neg_chap \|\| go->neg_upap \|\| no.neg_upap) {
bfictorie	0:8cdad1c73e8e	1011	goto bad;
bfictorie	0:8cdad1c73e8e	1012	}
bfictorie	0:8cdad1c73e8e	1013	break;
bfictorie	0:8cdad1c73e8e	1014	case CI_MAGICNUMBER:
bfictorie	0:8cdad1c73e8e	1015	if (go->neg_magicnumber \|\| no.neg_magicnumber \|\|
bfictorie	0:8cdad1c73e8e	1016	cilen != CILEN_LONG) {
bfictorie	0:8cdad1c73e8e	1017	goto bad;
bfictorie	0:8cdad1c73e8e	1018	}
bfictorie	0:8cdad1c73e8e	1019	break;
bfictorie	0:8cdad1c73e8e	1020	case CI_PCOMPRESSION:
bfictorie	0:8cdad1c73e8e	1021	if (go->neg_pcompression \|\| no.neg_pcompression
bfictorie	0:8cdad1c73e8e	1022	\|\| cilen != CILEN_VOID) {
bfictorie	0:8cdad1c73e8e	1023	goto bad;
bfictorie	0:8cdad1c73e8e	1024	}
bfictorie	0:8cdad1c73e8e	1025	break;
bfictorie	0:8cdad1c73e8e	1026	case CI_ACCOMPRESSION:
bfictorie	0:8cdad1c73e8e	1027	if (go->neg_accompression \|\| no.neg_accompression
bfictorie	0:8cdad1c73e8e	1028	\|\| cilen != CILEN_VOID) {
bfictorie	0:8cdad1c73e8e	1029	goto bad;
bfictorie	0:8cdad1c73e8e	1030	}
bfictorie	0:8cdad1c73e8e	1031	break;
bfictorie	0:8cdad1c73e8e	1032	case CI_QUALITY:
bfictorie	0:8cdad1c73e8e	1033	if (go->neg_lqr \|\| no.neg_lqr \|\| cilen != CILEN_LQR) {
bfictorie	0:8cdad1c73e8e	1034	goto bad;
bfictorie	0:8cdad1c73e8e	1035	}
bfictorie	0:8cdad1c73e8e	1036	break;
bfictorie	0:8cdad1c73e8e	1037	}
bfictorie	0:8cdad1c73e8e	1038	p = next;
bfictorie	0:8cdad1c73e8e	1039	}
bfictorie	0:8cdad1c73e8e	1040
bfictorie	0:8cdad1c73e8e	1041	/* If there is still anything left, this packet is bad. */
bfictorie	0:8cdad1c73e8e	1042	if (len != 0) {
bfictorie	0:8cdad1c73e8e	1043	goto bad;
bfictorie	0:8cdad1c73e8e	1044	}
bfictorie	0:8cdad1c73e8e	1045
bfictorie	0:8cdad1c73e8e	1046	/*
bfictorie	0:8cdad1c73e8e	1047	* OK, the Nak is good. Now we can update state.
bfictorie	0:8cdad1c73e8e	1048	*/
bfictorie	0:8cdad1c73e8e	1049	if (f->state != LS_OPENED) {
bfictorie	0:8cdad1c73e8e	1050	if (looped_back) {
bfictorie	0:8cdad1c73e8e	1051	if (++try.numloops >= lcp_loopbackfail) {
bfictorie	0:8cdad1c73e8e	1052	LCPDEBUG(LOG_NOTICE, ("Serial line is looped back.\n"));
bfictorie	0:8cdad1c73e8e	1053	lcp_close(f->unit, "Loopback detected");
bfictorie	0:8cdad1c73e8e	1054	}
bfictorie	0:8cdad1c73e8e	1055	} else {
bfictorie	0:8cdad1c73e8e	1056	try.numloops = 0;
bfictorie	0:8cdad1c73e8e	1057	}
bfictorie	0:8cdad1c73e8e	1058	*go = try;
bfictorie	0:8cdad1c73e8e	1059	}
bfictorie	0:8cdad1c73e8e	1060
bfictorie	0:8cdad1c73e8e	1061	return 1;
bfictorie	0:8cdad1c73e8e	1062
bfictorie	0:8cdad1c73e8e	1063	bad:
bfictorie	0:8cdad1c73e8e	1064	LCPDEBUG(LOG_WARNING, ("lcp_nakci: received bad Nak!\n"));
bfictorie	0:8cdad1c73e8e	1065	return 0;
bfictorie	0:8cdad1c73e8e	1066	}
bfictorie	0:8cdad1c73e8e	1067
bfictorie	0:8cdad1c73e8e	1068
bfictorie	0:8cdad1c73e8e	1069	/*
bfictorie	0:8cdad1c73e8e	1070	* lcp_rejci - Peer has Rejected some of our CIs.
bfictorie	0:8cdad1c73e8e	1071	* This should not modify any state if the Reject is bad
bfictorie	0:8cdad1c73e8e	1072	* or if LCP is in the LS_OPENED state.
bfictorie	0:8cdad1c73e8e	1073	*
bfictorie	0:8cdad1c73e8e	1074	* Returns:
bfictorie	0:8cdad1c73e8e	1075	* 0 - Reject was bad.
bfictorie	0:8cdad1c73e8e	1076	* 1 - Reject was good.
bfictorie	0:8cdad1c73e8e	1077	*/
bfictorie	0:8cdad1c73e8e	1078	static int
bfictorie	0:8cdad1c73e8e	1079	lcp_rejci(fsm f, u_char p, int len)
bfictorie	0:8cdad1c73e8e	1080	{
bfictorie	0:8cdad1c73e8e	1081	lcp_options *go = &lcp_gotoptions[f->unit];
bfictorie	0:8cdad1c73e8e	1082	u_char cichar;
bfictorie	0:8cdad1c73e8e	1083	u_short cishort;
bfictorie	0:8cdad1c73e8e	1084	u32_t cilong;
bfictorie	0:8cdad1c73e8e	1085	lcp_options try; /* options to request next time */
bfictorie	0:8cdad1c73e8e	1086
bfictorie	0:8cdad1c73e8e	1087	try = *go;
bfictorie	0:8cdad1c73e8e	1088
bfictorie	0:8cdad1c73e8e	1089	/*
bfictorie	0:8cdad1c73e8e	1090	* Any Rejected CIs must be in exactly the same order that we sent.
bfictorie	0:8cdad1c73e8e	1091	* Check packet length and CI length at each step.
bfictorie	0:8cdad1c73e8e	1092	* If we find any deviations, then this packet is bad.
bfictorie	0:8cdad1c73e8e	1093	*/
bfictorie	0:8cdad1c73e8e	1094	#define REJCIVOID(opt, neg) \
bfictorie	0:8cdad1c73e8e	1095	if (go->neg && \
bfictorie	0:8cdad1c73e8e	1096	len >= CILEN_VOID && \
bfictorie	0:8cdad1c73e8e	1097	p[1] == CILEN_VOID && \
bfictorie	0:8cdad1c73e8e	1098	p[0] == opt) { \
bfictorie	0:8cdad1c73e8e	1099	len -= CILEN_VOID; \
bfictorie	0:8cdad1c73e8e	1100	INCPTR(CILEN_VOID, p); \
bfictorie	0:8cdad1c73e8e	1101	try.neg = 0; \
bfictorie	0:8cdad1c73e8e	1102	LCPDEBUG(LOG_INFO, ("lcp_rejci: void opt %d rejected\n", opt)); \
bfictorie	0:8cdad1c73e8e	1103	}
bfictorie	0:8cdad1c73e8e	1104	#define REJCISHORT(opt, neg, val) \
bfictorie	0:8cdad1c73e8e	1105	if (go->neg && \
bfictorie	0:8cdad1c73e8e	1106	len >= CILEN_SHORT && \
bfictorie	0:8cdad1c73e8e	1107	p[1] == CILEN_SHORT && \
bfictorie	0:8cdad1c73e8e	1108	p[0] == opt) { \
bfictorie	0:8cdad1c73e8e	1109	len -= CILEN_SHORT; \
bfictorie	0:8cdad1c73e8e	1110	INCPTR(2, p); \
bfictorie	0:8cdad1c73e8e	1111	GETSHORT(cishort, p); \
bfictorie	0:8cdad1c73e8e	1112	/* Check rejected value. */ \
bfictorie	0:8cdad1c73e8e	1113	if (cishort != val) { \
bfictorie	0:8cdad1c73e8e	1114	goto bad; \
bfictorie	0:8cdad1c73e8e	1115	} \
bfictorie	0:8cdad1c73e8e	1116	try.neg = 0; \
bfictorie	0:8cdad1c73e8e	1117	LCPDEBUG(LOG_INFO, ("lcp_rejci: short opt %d rejected\n", opt)); \
bfictorie	0:8cdad1c73e8e	1118	}
bfictorie	0:8cdad1c73e8e	1119	#define REJCICHAP(opt, neg, val, digest) \
bfictorie	0:8cdad1c73e8e	1120	if (go->neg && \
bfictorie	0:8cdad1c73e8e	1121	len >= CILEN_CHAP && \
bfictorie	0:8cdad1c73e8e	1122	p[1] == CILEN_CHAP && \
bfictorie	0:8cdad1c73e8e	1123	p[0] == opt) { \
bfictorie	0:8cdad1c73e8e	1124	len -= CILEN_CHAP; \
bfictorie	0:8cdad1c73e8e	1125	INCPTR(2, p); \
bfictorie	0:8cdad1c73e8e	1126	GETSHORT(cishort, p); \
bfictorie	0:8cdad1c73e8e	1127	GETCHAR(cichar, p); \
bfictorie	0:8cdad1c73e8e	1128	/* Check rejected value. */ \
bfictorie	0:8cdad1c73e8e	1129	if (cishort != val \|\| cichar != digest) { \
bfictorie	0:8cdad1c73e8e	1130	goto bad; \
bfictorie	0:8cdad1c73e8e	1131	} \
bfictorie	0:8cdad1c73e8e	1132	try.neg = 0; \
bfictorie	0:8cdad1c73e8e	1133	try.neg_upap = 0; \
bfictorie	0:8cdad1c73e8e	1134	LCPDEBUG(LOG_INFO, ("lcp_rejci: chap opt %d rejected\n", opt)); \
bfictorie	0:8cdad1c73e8e	1135	}
bfictorie	0:8cdad1c73e8e	1136	#define REJCILONG(opt, neg, val) \
bfictorie	0:8cdad1c73e8e	1137	if (go->neg && \
bfictorie	0:8cdad1c73e8e	1138	len >= CILEN_LONG && \
bfictorie	0:8cdad1c73e8e	1139	p[1] == CILEN_LONG && \
bfictorie	0:8cdad1c73e8e	1140	p[0] == opt) { \
bfictorie	0:8cdad1c73e8e	1141	len -= CILEN_LONG; \
bfictorie	0:8cdad1c73e8e	1142	INCPTR(2, p); \
bfictorie	0:8cdad1c73e8e	1143	GETLONG(cilong, p); \
bfictorie	0:8cdad1c73e8e	1144	/* Check rejected value. */ \
bfictorie	0:8cdad1c73e8e	1145	if (cilong != val) { \
bfictorie	0:8cdad1c73e8e	1146	goto bad; \
bfictorie	0:8cdad1c73e8e	1147	} \
bfictorie	0:8cdad1c73e8e	1148	try.neg = 0; \
bfictorie	0:8cdad1c73e8e	1149	LCPDEBUG(LOG_INFO, ("lcp_rejci: long opt %d rejected\n", opt)); \
bfictorie	0:8cdad1c73e8e	1150	}
bfictorie	0:8cdad1c73e8e	1151	#define REJCILQR(opt, neg, val) \
bfictorie	0:8cdad1c73e8e	1152	if (go->neg && \
bfictorie	0:8cdad1c73e8e	1153	len >= CILEN_LQR && \
bfictorie	0:8cdad1c73e8e	1154	p[1] == CILEN_LQR && \
bfictorie	0:8cdad1c73e8e	1155	p[0] == opt) { \
bfictorie	0:8cdad1c73e8e	1156	len -= CILEN_LQR; \
bfictorie	0:8cdad1c73e8e	1157	INCPTR(2, p); \
bfictorie	0:8cdad1c73e8e	1158	GETSHORT(cishort, p); \
bfictorie	0:8cdad1c73e8e	1159	GETLONG(cilong, p); \
bfictorie	0:8cdad1c73e8e	1160	/* Check rejected value. */ \
bfictorie	0:8cdad1c73e8e	1161	if (cishort != PPP_LQR \|\| cilong != val) { \
bfictorie	0:8cdad1c73e8e	1162	goto bad; \
bfictorie	0:8cdad1c73e8e	1163	} \
bfictorie	0:8cdad1c73e8e	1164	try.neg = 0; \
bfictorie	0:8cdad1c73e8e	1165	LCPDEBUG(LOG_INFO, ("lcp_rejci: LQR opt %d rejected\n", opt)); \
bfictorie	0:8cdad1c73e8e	1166	}
bfictorie	0:8cdad1c73e8e	1167	#define REJCICBCP(opt, neg, val) \
bfictorie	0:8cdad1c73e8e	1168	if (go->neg && \
bfictorie	0:8cdad1c73e8e	1169	len >= CILEN_CBCP && \
bfictorie	0:8cdad1c73e8e	1170	p[1] == CILEN_CBCP && \
bfictorie	0:8cdad1c73e8e	1171	p[0] == opt) { \
bfictorie	0:8cdad1c73e8e	1172	len -= CILEN_CBCP; \
bfictorie	0:8cdad1c73e8e	1173	INCPTR(2, p); \
bfictorie	0:8cdad1c73e8e	1174	GETCHAR(cichar, p); \
bfictorie	0:8cdad1c73e8e	1175	/* Check rejected value. */ \
bfictorie	0:8cdad1c73e8e	1176	if (cichar != val) { \
bfictorie	0:8cdad1c73e8e	1177	goto bad; \
bfictorie	0:8cdad1c73e8e	1178	} \
bfictorie	0:8cdad1c73e8e	1179	try.neg = 0; \
bfictorie	0:8cdad1c73e8e	1180	LCPDEBUG(LOG_INFO, ("lcp_rejci: Callback opt %d rejected\n", opt)); \
bfictorie	0:8cdad1c73e8e	1181	}
bfictorie	0:8cdad1c73e8e	1182
bfictorie	0:8cdad1c73e8e	1183	REJCISHORT(CI_MRU, neg_mru, go->mru);
bfictorie	0:8cdad1c73e8e	1184	REJCILONG(CI_ASYNCMAP, neg_asyncmap, go->asyncmap);
bfictorie	0:8cdad1c73e8e	1185	REJCICHAP(CI_AUTHTYPE, neg_chap, PPP_CHAP, go->chap_mdtype);
bfictorie	0:8cdad1c73e8e	1186	if (!go->neg_chap) {
bfictorie	0:8cdad1c73e8e	1187	REJCISHORT(CI_AUTHTYPE, neg_upap, PPP_PAP);
bfictorie	0:8cdad1c73e8e	1188	}
bfictorie	0:8cdad1c73e8e	1189	REJCILQR(CI_QUALITY, neg_lqr, go->lqr_period);
bfictorie	0:8cdad1c73e8e	1190	REJCICBCP(CI_CALLBACK, neg_cbcp, CBCP_OPT);
bfictorie	0:8cdad1c73e8e	1191	REJCILONG(CI_MAGICNUMBER, neg_magicnumber, go->magicnumber);
bfictorie	0:8cdad1c73e8e	1192	REJCIVOID(CI_PCOMPRESSION, neg_pcompression);
bfictorie	0:8cdad1c73e8e	1193	REJCIVOID(CI_ACCOMPRESSION, neg_accompression);
bfictorie	0:8cdad1c73e8e	1194
bfictorie	0:8cdad1c73e8e	1195	/*
bfictorie	0:8cdad1c73e8e	1196	* If there are any remaining CIs, then this packet is bad.
bfictorie	0:8cdad1c73e8e	1197	*/
bfictorie	0:8cdad1c73e8e	1198	if (len != 0) {
bfictorie	0:8cdad1c73e8e	1199	goto bad;
bfictorie	0:8cdad1c73e8e	1200	}
bfictorie	0:8cdad1c73e8e	1201	/*
bfictorie	0:8cdad1c73e8e	1202	* Now we can update state.
bfictorie	0:8cdad1c73e8e	1203	*/
bfictorie	0:8cdad1c73e8e	1204	if (f->state != LS_OPENED) {
bfictorie	0:8cdad1c73e8e	1205	*go = try;
bfictorie	0:8cdad1c73e8e	1206	}
bfictorie	0:8cdad1c73e8e	1207	return 1;
bfictorie	0:8cdad1c73e8e	1208
bfictorie	0:8cdad1c73e8e	1209	bad:
bfictorie	0:8cdad1c73e8e	1210	LCPDEBUG(LOG_WARNING, ("lcp_rejci: received bad Reject!\n"));
bfictorie	0:8cdad1c73e8e	1211	return 0;
bfictorie	0:8cdad1c73e8e	1212	}
bfictorie	0:8cdad1c73e8e	1213
bfictorie	0:8cdad1c73e8e	1214
bfictorie	0:8cdad1c73e8e	1215	/*
bfictorie	0:8cdad1c73e8e	1216	* lcp_reqci - Check the peer's requested CIs and send appropriate response.
bfictorie	0:8cdad1c73e8e	1217	*
bfictorie	0:8cdad1c73e8e	1218	* Returns: CONFACK, CONFNAK or CONFREJ and input packet modified
bfictorie	0:8cdad1c73e8e	1219	* appropriately. If reject_if_disagree is non-zero, doesn't return
bfictorie	0:8cdad1c73e8e	1220	* CONFNAK; returns CONFREJ if it can't return CONFACK.
bfictorie	0:8cdad1c73e8e	1221	*/
bfictorie	0:8cdad1c73e8e	1222	static int
bfictorie	0:8cdad1c73e8e	1223	lcp_reqci(fsm *f,
bfictorie	0:8cdad1c73e8e	1224	u_char inp, / Requested CIs */
bfictorie	0:8cdad1c73e8e	1225	int lenp, / Length of requested CIs */
bfictorie	0:8cdad1c73e8e	1226	int reject_if_disagree)
bfictorie	0:8cdad1c73e8e	1227	{
bfictorie	0:8cdad1c73e8e	1228	lcp_options *go = &lcp_gotoptions[f->unit];
bfictorie	0:8cdad1c73e8e	1229	lcp_options *ho = &lcp_hisoptions[f->unit];
bfictorie	0:8cdad1c73e8e	1230	lcp_options *ao = &lcp_allowoptions[f->unit];
bfictorie	0:8cdad1c73e8e	1231	u_char cip, next; /* Pointer to current and next CIs */
bfictorie	0:8cdad1c73e8e	1232	int cilen, citype; /* Parsed len, type */
bfictorie	0:8cdad1c73e8e	1233	u_char cichar; /* Parsed char value */
bfictorie	0:8cdad1c73e8e	1234	u_short cishort; /* Parsed short value */
bfictorie	0:8cdad1c73e8e	1235	u32_t cilong; /* Parse long value */
bfictorie	0:8cdad1c73e8e	1236	int rc = CONFACK; /* Final packet return code */
bfictorie	0:8cdad1c73e8e	1237	int orc; /* Individual option return code */
bfictorie	0:8cdad1c73e8e	1238	u_char p; / Pointer to next char to parse */
bfictorie	0:8cdad1c73e8e	1239	u_char rejp; / Pointer to next char in reject frame */
bfictorie	0:8cdad1c73e8e	1240	u_char nakp; / Pointer to next char in Nak frame */
bfictorie	0:8cdad1c73e8e	1241	int l = lenp; / Length left */
bfictorie	0:8cdad1c73e8e	1242	#if TRACELCP > 0
bfictorie	0:8cdad1c73e8e	1243	char traceBuf[80];
bfictorie	0:8cdad1c73e8e	1244	size_t traceNdx = 0;
bfictorie	0:8cdad1c73e8e	1245	#endif
bfictorie	0:8cdad1c73e8e	1246
bfictorie	0:8cdad1c73e8e	1247	/*
bfictorie	0:8cdad1c73e8e	1248	* Reset all his options.
bfictorie	0:8cdad1c73e8e	1249	*/
bfictorie	0:8cdad1c73e8e	1250	BZERO(ho, sizeof(*ho));
bfictorie	0:8cdad1c73e8e	1251
bfictorie	0:8cdad1c73e8e	1252	/*
bfictorie	0:8cdad1c73e8e	1253	* Process all his options.
bfictorie	0:8cdad1c73e8e	1254	*/
bfictorie	0:8cdad1c73e8e	1255	next = inp;
bfictorie	0:8cdad1c73e8e	1256	nakp = nak_buffer;
bfictorie	0:8cdad1c73e8e	1257	rejp = inp;
bfictorie	0:8cdad1c73e8e	1258	while (l) {
bfictorie	0:8cdad1c73e8e	1259	orc = CONFACK; /* Assume success */
bfictorie	0:8cdad1c73e8e	1260	cip = p = next; /* Remember begining of CI */
bfictorie	0:8cdad1c73e8e	1261	if (l < 2 \|\| /* Not enough data for CI header or */
bfictorie	0:8cdad1c73e8e	1262	p[1] < 2 \|\| /* CI length too small or */
bfictorie	0:8cdad1c73e8e	1263	p[1] > l) { /* CI length too big? */
bfictorie	0:8cdad1c73e8e	1264	LCPDEBUG(LOG_WARNING, ("lcp_reqci: bad CI length!\n"));
bfictorie	0:8cdad1c73e8e	1265	orc = CONFREJ; /* Reject bad CI */
bfictorie	0:8cdad1c73e8e	1266	cilen = l; /* Reject till end of packet */
bfictorie	0:8cdad1c73e8e	1267	l = 0; /* Don't loop again */
bfictorie	0:8cdad1c73e8e	1268	citype = 0;
bfictorie	0:8cdad1c73e8e	1269	goto endswitch;
bfictorie	0:8cdad1c73e8e	1270	}
bfictorie	0:8cdad1c73e8e	1271	GETCHAR(citype, p); /* Parse CI type */
bfictorie	0:8cdad1c73e8e	1272	GETCHAR(cilen, p); /* Parse CI length */
bfictorie	0:8cdad1c73e8e	1273	l -= cilen; /* Adjust remaining length */
bfictorie	0:8cdad1c73e8e	1274	next += cilen; /* Step to next CI */
bfictorie	0:8cdad1c73e8e	1275
bfictorie	0:8cdad1c73e8e	1276	switch (citype) { /* Check CI type */
bfictorie	0:8cdad1c73e8e	1277	case CI_MRU:
bfictorie	0:8cdad1c73e8e	1278	if (!ao->neg_mru) { /* Allow option? */
bfictorie	0:8cdad1c73e8e	1279	LCPDEBUG(LOG_INFO, ("lcp_reqci: Reject MRU - not allowed\n"));
bfictorie	0:8cdad1c73e8e	1280	orc = CONFREJ; /* Reject CI */
bfictorie	0:8cdad1c73e8e	1281	break;
bfictorie	0:8cdad1c73e8e	1282	} else if (cilen != CILEN_SHORT) { /* Check CI length */
bfictorie	0:8cdad1c73e8e	1283	LCPDEBUG(LOG_INFO, ("lcp_reqci: Reject MRU - bad length\n"));
bfictorie	0:8cdad1c73e8e	1284	orc = CONFREJ; /* Reject CI */
bfictorie	0:8cdad1c73e8e	1285	break;
bfictorie	0:8cdad1c73e8e	1286	}
bfictorie	0:8cdad1c73e8e	1287	GETSHORT(cishort, p); /* Parse MRU */
bfictorie	0:8cdad1c73e8e	1288
bfictorie	0:8cdad1c73e8e	1289	/*
bfictorie	0:8cdad1c73e8e	1290	* He must be able to receive at least our minimum.
bfictorie	0:8cdad1c73e8e	1291	* No need to check a maximum. If he sends a large number,
bfictorie	0:8cdad1c73e8e	1292	* we'll just ignore it.
bfictorie	0:8cdad1c73e8e	1293	*/
bfictorie	0:8cdad1c73e8e	1294	if (cishort < PPP_MINMRU) {
bfictorie	0:8cdad1c73e8e	1295	LCPDEBUG(LOG_INFO, ("lcp_reqci: Nak - MRU too small\n"));
bfictorie	0:8cdad1c73e8e	1296	orc = CONFNAK; /* Nak CI */
bfictorie	0:8cdad1c73e8e	1297	PUTCHAR(CI_MRU, nakp);
bfictorie	0:8cdad1c73e8e	1298	PUTCHAR(CILEN_SHORT, nakp);
bfictorie	0:8cdad1c73e8e	1299	PUTSHORT(PPP_MINMRU, nakp); /* Give him a hint */
bfictorie	0:8cdad1c73e8e	1300	break;
bfictorie	0:8cdad1c73e8e	1301	}
bfictorie	0:8cdad1c73e8e	1302	ho->neg_mru = 1; /* Remember he sent MRU */
bfictorie	0:8cdad1c73e8e	1303	ho->mru = cishort; /* And remember value */
bfictorie	0:8cdad1c73e8e	1304	#if TRACELCP > 0
bfictorie	0:8cdad1c73e8e	1305	snprintf(&traceBuf[traceNdx], sizeof(traceBuf), " MRU %d", cishort);
bfictorie	0:8cdad1c73e8e	1306	traceNdx = strlen(traceBuf);
bfictorie	0:8cdad1c73e8e	1307	#endif
bfictorie	0:8cdad1c73e8e	1308	break;
bfictorie	0:8cdad1c73e8e	1309
bfictorie	0:8cdad1c73e8e	1310	case CI_ASYNCMAP:
bfictorie	0:8cdad1c73e8e	1311	if (!ao->neg_asyncmap) {
bfictorie	0:8cdad1c73e8e	1312	LCPDEBUG(LOG_INFO, ("lcp_reqci: Reject ASYNCMAP not allowed\n"));
bfictorie	0:8cdad1c73e8e	1313	orc = CONFREJ;
bfictorie	0:8cdad1c73e8e	1314	break;
bfictorie	0:8cdad1c73e8e	1315	} else if (cilen != CILEN_LONG) {
bfictorie	0:8cdad1c73e8e	1316	LCPDEBUG(LOG_INFO, ("lcp_reqci: Reject ASYNCMAP bad length\n"));
bfictorie	0:8cdad1c73e8e	1317	orc = CONFREJ;
bfictorie	0:8cdad1c73e8e	1318	break;
bfictorie	0:8cdad1c73e8e	1319	}
bfictorie	0:8cdad1c73e8e	1320	GETLONG(cilong, p);
bfictorie	0:8cdad1c73e8e	1321
bfictorie	0:8cdad1c73e8e	1322	/*
bfictorie	0:8cdad1c73e8e	1323	* Asyncmap must have set at least the bits
bfictorie	0:8cdad1c73e8e	1324	* which are set in lcp_allowoptions[unit].asyncmap.
bfictorie	0:8cdad1c73e8e	1325	*/
bfictorie	0:8cdad1c73e8e	1326	if ((ao->asyncmap & ~cilong) != 0) {
bfictorie	0:8cdad1c73e8e	1327	LCPDEBUG(LOG_INFO, ("lcp_reqci: Nak ASYNCMAP %lX missing %lX\n",
bfictorie	0:8cdad1c73e8e	1328	cilong, ao->asyncmap));
bfictorie	0:8cdad1c73e8e	1329	orc = CONFNAK;
bfictorie	0:8cdad1c73e8e	1330	PUTCHAR(CI_ASYNCMAP, nakp);
bfictorie	0:8cdad1c73e8e	1331	PUTCHAR(CILEN_LONG, nakp);
bfictorie	0:8cdad1c73e8e	1332	PUTLONG(ao->asyncmap \| cilong, nakp);
bfictorie	0:8cdad1c73e8e	1333	break;
bfictorie	0:8cdad1c73e8e	1334	}
bfictorie	0:8cdad1c73e8e	1335	ho->neg_asyncmap = 1;
bfictorie	0:8cdad1c73e8e	1336	ho->asyncmap = cilong;
bfictorie	0:8cdad1c73e8e	1337	#if TRACELCP > 0
bfictorie	0:8cdad1c73e8e	1338	snprintf(&traceBuf[traceNdx], sizeof(traceBuf), " ASYNCMAP=%lX", cilong);
bfictorie	0:8cdad1c73e8e	1339	traceNdx = strlen(traceBuf);
bfictorie	0:8cdad1c73e8e	1340	#endif
bfictorie	0:8cdad1c73e8e	1341	break;
bfictorie	0:8cdad1c73e8e	1342
bfictorie	0:8cdad1c73e8e	1343	case CI_AUTHTYPE:
bfictorie	0:8cdad1c73e8e	1344	if (cilen < CILEN_SHORT) {
bfictorie	0:8cdad1c73e8e	1345	LCPDEBUG(LOG_INFO, ("lcp_reqci: Reject AUTHTYPE missing arg\n"));
bfictorie	0:8cdad1c73e8e	1346	orc = CONFREJ;
bfictorie	0:8cdad1c73e8e	1347	break;
bfictorie	0:8cdad1c73e8e	1348	} else if (!(ao->neg_upap \|\| ao->neg_chap)) {
bfictorie	0:8cdad1c73e8e	1349	/*
bfictorie	0:8cdad1c73e8e	1350	* Reject the option if we're not willing to authenticate.
bfictorie	0:8cdad1c73e8e	1351	*/
bfictorie	0:8cdad1c73e8e	1352	LCPDEBUG(LOG_INFO, ("lcp_reqci: Reject AUTHTYPE not allowed\n"));
bfictorie	0:8cdad1c73e8e	1353	orc = CONFREJ;
bfictorie	0:8cdad1c73e8e	1354	break;
bfictorie	0:8cdad1c73e8e	1355	}
bfictorie	0:8cdad1c73e8e	1356	GETSHORT(cishort, p);
bfictorie	0:8cdad1c73e8e	1357
bfictorie	0:8cdad1c73e8e	1358	/*
bfictorie	0:8cdad1c73e8e	1359	* Authtype must be UPAP or CHAP.
bfictorie	0:8cdad1c73e8e	1360	*
bfictorie	0:8cdad1c73e8e	1361	* Note: if both ao->neg_upap and ao->neg_chap are set,
bfictorie	0:8cdad1c73e8e	1362	* and the peer sends a Configure-Request with two
bfictorie	0:8cdad1c73e8e	1363	* authenticate-protocol requests, one for CHAP and one
bfictorie	0:8cdad1c73e8e	1364	* for UPAP, then we will reject the second request.
bfictorie	0:8cdad1c73e8e	1365	* Whether we end up doing CHAP or UPAP depends then on
bfictorie	0:8cdad1c73e8e	1366	* the ordering of the CIs in the peer's Configure-Request.
bfictorie	0:8cdad1c73e8e	1367	*/
bfictorie	0:8cdad1c73e8e	1368
bfictorie	0:8cdad1c73e8e	1369	if (cishort == PPP_PAP) {
bfictorie	0:8cdad1c73e8e	1370	if (ho->neg_chap) { /* we've already accepted CHAP */
bfictorie	0:8cdad1c73e8e	1371	LCPDEBUG(LOG_WARNING, ("lcp_reqci: Reject AUTHTYPE PAP already accepted\n"));
bfictorie	0:8cdad1c73e8e	1372	orc = CONFREJ;
bfictorie	0:8cdad1c73e8e	1373	break;
bfictorie	0:8cdad1c73e8e	1374	} else if (cilen != CILEN_SHORT) {
bfictorie	0:8cdad1c73e8e	1375	LCPDEBUG(LOG_WARNING, ("lcp_reqci: Reject AUTHTYPE PAP bad len\n"));
bfictorie	0:8cdad1c73e8e	1376	orc = CONFREJ;
bfictorie	0:8cdad1c73e8e	1377	break;
bfictorie	0:8cdad1c73e8e	1378	}
bfictorie	0:8cdad1c73e8e	1379	if (!ao->neg_upap) { /* we don't want to do PAP */
bfictorie	0:8cdad1c73e8e	1380	LCPDEBUG(LOG_WARNING, ("lcp_reqci: Nak AUTHTYPE PAP not allowed\n"));
bfictorie	0:8cdad1c73e8e	1381	orc = CONFNAK; /* NAK it and suggest CHAP */
bfictorie	0:8cdad1c73e8e	1382	PUTCHAR(CI_AUTHTYPE, nakp);
bfictorie	0:8cdad1c73e8e	1383	PUTCHAR(CILEN_CHAP, nakp);
bfictorie	0:8cdad1c73e8e	1384	PUTSHORT(PPP_CHAP, nakp);
bfictorie	0:8cdad1c73e8e	1385	PUTCHAR(ao->chap_mdtype, nakp);
bfictorie	0:8cdad1c73e8e	1386	break;
bfictorie	0:8cdad1c73e8e	1387	}
bfictorie	0:8cdad1c73e8e	1388	ho->neg_upap = 1;
bfictorie	0:8cdad1c73e8e	1389	#if TRACELCP > 0
bfictorie	0:8cdad1c73e8e	1390	snprintf(&traceBuf[traceNdx], sizeof(traceBuf), " PAP (%X)", cishort);
bfictorie	0:8cdad1c73e8e	1391	traceNdx = strlen(traceBuf);
bfictorie	0:8cdad1c73e8e	1392	#endif
bfictorie	0:8cdad1c73e8e	1393	break;
bfictorie	0:8cdad1c73e8e	1394	}
bfictorie	0:8cdad1c73e8e	1395	if (cishort == PPP_CHAP) {
bfictorie	0:8cdad1c73e8e	1396	if (ho->neg_upap) { /* we've already accepted PAP */
bfictorie	0:8cdad1c73e8e	1397	LCPDEBUG(LOG_WARNING, ("lcp_reqci: Reject AUTHTYPE CHAP accepted PAP\n"));
bfictorie	0:8cdad1c73e8e	1398	orc = CONFREJ;
bfictorie	0:8cdad1c73e8e	1399	break;
bfictorie	0:8cdad1c73e8e	1400	} else if (cilen != CILEN_CHAP) {
bfictorie	0:8cdad1c73e8e	1401	LCPDEBUG(LOG_WARNING, ("lcp_reqci: Reject AUTHTYPE CHAP bad len\n"));
bfictorie	0:8cdad1c73e8e	1402	orc = CONFREJ;
bfictorie	0:8cdad1c73e8e	1403	break;
bfictorie	0:8cdad1c73e8e	1404	}
bfictorie	0:8cdad1c73e8e	1405	if (!ao->neg_chap) { /* we don't want to do CHAP */
bfictorie	0:8cdad1c73e8e	1406	LCPDEBUG(LOG_WARNING, ("lcp_reqci: Nak AUTHTYPE CHAP not allowed\n"));
bfictorie	0:8cdad1c73e8e	1407	orc = CONFNAK; /* NAK it and suggest PAP */
bfictorie	0:8cdad1c73e8e	1408	PUTCHAR(CI_AUTHTYPE, nakp);
bfictorie	0:8cdad1c73e8e	1409	PUTCHAR(CILEN_SHORT, nakp);
bfictorie	0:8cdad1c73e8e	1410	PUTSHORT(PPP_PAP, nakp);
bfictorie	0:8cdad1c73e8e	1411	break;
bfictorie	0:8cdad1c73e8e	1412	}
bfictorie	0:8cdad1c73e8e	1413	GETCHAR(cichar, p); /* get digest type*/
bfictorie	0:8cdad1c73e8e	1414	if (cichar != CHAP_DIGEST_MD5
bfictorie	0:8cdad1c73e8e	1415	#if MSCHAP_SUPPORT
bfictorie	0:8cdad1c73e8e	1416	&& cichar != CHAP_MICROSOFT
bfictorie	0:8cdad1c73e8e	1417	#endif
bfictorie	0:8cdad1c73e8e	1418	) {
bfictorie	0:8cdad1c73e8e	1419	LCPDEBUG(LOG_WARNING, ("lcp_reqci: Nak AUTHTYPE CHAP digest=%d\n", (int)cichar));
bfictorie	0:8cdad1c73e8e	1420	orc = CONFNAK;
bfictorie	0:8cdad1c73e8e	1421	PUTCHAR(CI_AUTHTYPE, nakp);
bfictorie	0:8cdad1c73e8e	1422	PUTCHAR(CILEN_CHAP, nakp);
bfictorie	0:8cdad1c73e8e	1423	PUTSHORT(PPP_CHAP, nakp);
bfictorie	0:8cdad1c73e8e	1424	PUTCHAR(ao->chap_mdtype, nakp);
bfictorie	0:8cdad1c73e8e	1425	break;
bfictorie	0:8cdad1c73e8e	1426	}
bfictorie	0:8cdad1c73e8e	1427	#if TRACELCP > 0
bfictorie	0:8cdad1c73e8e	1428	snprintf(&traceBuf[traceNdx], sizeof(traceBuf), " CHAP %X,%d", cishort, (int)cichar);
bfictorie	0:8cdad1c73e8e	1429	traceNdx = strlen(traceBuf);
bfictorie	0:8cdad1c73e8e	1430	#endif
bfictorie	0:8cdad1c73e8e	1431	ho->chap_mdtype = cichar; /* save md type */
bfictorie	0:8cdad1c73e8e	1432	ho->neg_chap = 1;
bfictorie	0:8cdad1c73e8e	1433	break;
bfictorie	0:8cdad1c73e8e	1434	}
bfictorie	0:8cdad1c73e8e	1435
bfictorie	0:8cdad1c73e8e	1436	/*
bfictorie	0:8cdad1c73e8e	1437	* We don't recognize the protocol they're asking for.
bfictorie	0:8cdad1c73e8e	1438	* Nak it with something we're willing to do.
bfictorie	0:8cdad1c73e8e	1439	* (At this point we know ao->neg_upap \|\| ao->neg_chap.)
bfictorie	0:8cdad1c73e8e	1440	*/
bfictorie	0:8cdad1c73e8e	1441	orc = CONFNAK;
bfictorie	0:8cdad1c73e8e	1442	PUTCHAR(CI_AUTHTYPE, nakp);
bfictorie	0:8cdad1c73e8e	1443	if (ao->neg_chap) {
bfictorie	0:8cdad1c73e8e	1444	LCPDEBUG(LOG_WARNING, ("lcp_reqci: Nak AUTHTYPE %d req CHAP\n", cishort));
bfictorie	0:8cdad1c73e8e	1445	PUTCHAR(CILEN_CHAP, nakp);
bfictorie	0:8cdad1c73e8e	1446	PUTSHORT(PPP_CHAP, nakp);
bfictorie	0:8cdad1c73e8e	1447	PUTCHAR(ao->chap_mdtype, nakp);
bfictorie	0:8cdad1c73e8e	1448	} else {
bfictorie	0:8cdad1c73e8e	1449	LCPDEBUG(LOG_WARNING, ("lcp_reqci: Nak AUTHTYPE %d req PAP\n", cishort));
bfictorie	0:8cdad1c73e8e	1450	PUTCHAR(CILEN_SHORT, nakp);
bfictorie	0:8cdad1c73e8e	1451	PUTSHORT(PPP_PAP, nakp);
bfictorie	0:8cdad1c73e8e	1452	}
bfictorie	0:8cdad1c73e8e	1453	break;
bfictorie	0:8cdad1c73e8e	1454
bfictorie	0:8cdad1c73e8e	1455	case CI_QUALITY:
bfictorie	0:8cdad1c73e8e	1456	GETSHORT(cishort, p);
bfictorie	0:8cdad1c73e8e	1457	GETLONG(cilong, p);
bfictorie	0:8cdad1c73e8e	1458	#if TRACELCP > 0
bfictorie	0:8cdad1c73e8e	1459	snprintf(&traceBuf[traceNdx], sizeof(traceBuf), " QUALITY (%x %x)", cishort, (unsigned int) cilong);
bfictorie	0:8cdad1c73e8e	1460	traceNdx = strlen(traceBuf);
bfictorie	0:8cdad1c73e8e	1461	#endif
bfictorie	0:8cdad1c73e8e	1462
bfictorie	0:8cdad1c73e8e	1463	if (!ao->neg_lqr \|\|
bfictorie	0:8cdad1c73e8e	1464	cilen != CILEN_LQR) {
bfictorie	0:8cdad1c73e8e	1465	orc = CONFREJ;
bfictorie	0:8cdad1c73e8e	1466	break;
bfictorie	0:8cdad1c73e8e	1467	}
bfictorie	0:8cdad1c73e8e	1468
bfictorie	0:8cdad1c73e8e	1469	/*
bfictorie	0:8cdad1c73e8e	1470	* Check the protocol and the reporting period.
bfictorie	0:8cdad1c73e8e	1471	* XXX When should we Nak this, and what with?
bfictorie	0:8cdad1c73e8e	1472	*/
bfictorie	0:8cdad1c73e8e	1473	if (cishort != PPP_LQR) {
bfictorie	0:8cdad1c73e8e	1474	orc = CONFNAK;
bfictorie	0:8cdad1c73e8e	1475	PUTCHAR(CI_QUALITY, nakp);
bfictorie	0:8cdad1c73e8e	1476	PUTCHAR(CILEN_LQR, nakp);
bfictorie	0:8cdad1c73e8e	1477	PUTSHORT(PPP_LQR, nakp);
bfictorie	0:8cdad1c73e8e	1478	PUTLONG(ao->lqr_period, nakp);
bfictorie	0:8cdad1c73e8e	1479	break;
bfictorie	0:8cdad1c73e8e	1480	}
bfictorie	0:8cdad1c73e8e	1481	break;
bfictorie	0:8cdad1c73e8e	1482
bfictorie	0:8cdad1c73e8e	1483	case CI_MAGICNUMBER:
bfictorie	0:8cdad1c73e8e	1484	if (!(ao->neg_magicnumber \|\| go->neg_magicnumber) \|\|
bfictorie	0:8cdad1c73e8e	1485	cilen != CILEN_LONG) {
bfictorie	0:8cdad1c73e8e	1486	orc = CONFREJ;
bfictorie	0:8cdad1c73e8e	1487	break;
bfictorie	0:8cdad1c73e8e	1488	}
bfictorie	0:8cdad1c73e8e	1489	GETLONG(cilong, p);
bfictorie	0:8cdad1c73e8e	1490	#if TRACELCP > 0
bfictorie	0:8cdad1c73e8e	1491	snprintf(&traceBuf[traceNdx], sizeof(traceBuf), " MAGICNUMBER (%lX)", cilong);
bfictorie	0:8cdad1c73e8e	1492	traceNdx = strlen(traceBuf);
bfictorie	0:8cdad1c73e8e	1493	#endif
bfictorie	0:8cdad1c73e8e	1494
bfictorie	0:8cdad1c73e8e	1495	/*
bfictorie	0:8cdad1c73e8e	1496	* He must have a different magic number.
bfictorie	0:8cdad1c73e8e	1497	*/
bfictorie	0:8cdad1c73e8e	1498	if (go->neg_magicnumber &&
bfictorie	0:8cdad1c73e8e	1499	cilong == go->magicnumber) {
bfictorie	0:8cdad1c73e8e	1500	cilong = magic(); /* Don't put magic() inside macro! */
bfictorie	0:8cdad1c73e8e	1501	orc = CONFNAK;
bfictorie	0:8cdad1c73e8e	1502	PUTCHAR(CI_MAGICNUMBER, nakp);
bfictorie	0:8cdad1c73e8e	1503	PUTCHAR(CILEN_LONG, nakp);
bfictorie	0:8cdad1c73e8e	1504	PUTLONG(cilong, nakp);
bfictorie	0:8cdad1c73e8e	1505	break;
bfictorie	0:8cdad1c73e8e	1506	}
bfictorie	0:8cdad1c73e8e	1507	ho->neg_magicnumber = 1;
bfictorie	0:8cdad1c73e8e	1508	ho->magicnumber = cilong;
bfictorie	0:8cdad1c73e8e	1509	break;
bfictorie	0:8cdad1c73e8e	1510
bfictorie	0:8cdad1c73e8e	1511
bfictorie	0:8cdad1c73e8e	1512	case CI_PCOMPRESSION:
bfictorie	0:8cdad1c73e8e	1513	#if TRACELCP > 0
bfictorie	0:8cdad1c73e8e	1514	snprintf(&traceBuf[traceNdx], sizeof(traceBuf), " PCOMPRESSION");
bfictorie	0:8cdad1c73e8e	1515	traceNdx = strlen(traceBuf);
bfictorie	0:8cdad1c73e8e	1516	#endif
bfictorie	0:8cdad1c73e8e	1517	if (!ao->neg_pcompression \|\|
bfictorie	0:8cdad1c73e8e	1518	cilen != CILEN_VOID) {
bfictorie	0:8cdad1c73e8e	1519	orc = CONFREJ;
bfictorie	0:8cdad1c73e8e	1520	break;
bfictorie	0:8cdad1c73e8e	1521	}
bfictorie	0:8cdad1c73e8e	1522	ho->neg_pcompression = 1;
bfictorie	0:8cdad1c73e8e	1523	break;
bfictorie	0:8cdad1c73e8e	1524
bfictorie	0:8cdad1c73e8e	1525	case CI_ACCOMPRESSION:
bfictorie	0:8cdad1c73e8e	1526	#if TRACELCP > 0
bfictorie	0:8cdad1c73e8e	1527	snprintf(&traceBuf[traceNdx], sizeof(traceBuf), " ACCOMPRESSION");
bfictorie	0:8cdad1c73e8e	1528	traceNdx = strlen(traceBuf);
bfictorie	0:8cdad1c73e8e	1529	#endif
bfictorie	0:8cdad1c73e8e	1530	if (!ao->neg_accompression \|\|
bfictorie	0:8cdad1c73e8e	1531	cilen != CILEN_VOID) {
bfictorie	0:8cdad1c73e8e	1532	orc = CONFREJ;
bfictorie	0:8cdad1c73e8e	1533	break;
bfictorie	0:8cdad1c73e8e	1534	}
bfictorie	0:8cdad1c73e8e	1535	ho->neg_accompression = 1;
bfictorie	0:8cdad1c73e8e	1536	break;
bfictorie	0:8cdad1c73e8e	1537
bfictorie	0:8cdad1c73e8e	1538	case CI_MRRU:
bfictorie	0:8cdad1c73e8e	1539	#if TRACELCP > 0
bfictorie	0:8cdad1c73e8e	1540	snprintf(&traceBuf[traceNdx], sizeof(traceBuf), " CI_MRRU");
bfictorie	0:8cdad1c73e8e	1541	traceNdx = strlen(traceBuf);
bfictorie	0:8cdad1c73e8e	1542	#endif
bfictorie	0:8cdad1c73e8e	1543	orc = CONFREJ;
bfictorie	0:8cdad1c73e8e	1544	break;
bfictorie	0:8cdad1c73e8e	1545
bfictorie	0:8cdad1c73e8e	1546	case CI_SSNHF:
bfictorie	0:8cdad1c73e8e	1547	#if TRACELCP > 0
bfictorie	0:8cdad1c73e8e	1548	snprintf(&traceBuf[traceNdx], sizeof(traceBuf), " CI_SSNHF");
bfictorie	0:8cdad1c73e8e	1549	traceNdx = strlen(traceBuf);
bfictorie	0:8cdad1c73e8e	1550	#endif
bfictorie	0:8cdad1c73e8e	1551	orc = CONFREJ;
bfictorie	0:8cdad1c73e8e	1552	break;
bfictorie	0:8cdad1c73e8e	1553
bfictorie	0:8cdad1c73e8e	1554	case CI_EPDISC:
bfictorie	0:8cdad1c73e8e	1555	#if TRACELCP > 0
bfictorie	0:8cdad1c73e8e	1556	snprintf(&traceBuf[traceNdx], sizeof(traceBuf), " CI_EPDISC");
bfictorie	0:8cdad1c73e8e	1557	traceNdx = strlen(traceBuf);
bfictorie	0:8cdad1c73e8e	1558	#endif
bfictorie	0:8cdad1c73e8e	1559	orc = CONFREJ;
bfictorie	0:8cdad1c73e8e	1560	break;
bfictorie	0:8cdad1c73e8e	1561
bfictorie	0:8cdad1c73e8e	1562	default:
bfictorie	0:8cdad1c73e8e	1563	#if TRACELCP
bfictorie	0:8cdad1c73e8e	1564	snprintf(&traceBuf[traceNdx], sizeof(traceBuf), " unknown %d", citype);
bfictorie	0:8cdad1c73e8e	1565	traceNdx = strlen(traceBuf);
bfictorie	0:8cdad1c73e8e	1566	#endif
bfictorie	0:8cdad1c73e8e	1567	orc = CONFREJ;
bfictorie	0:8cdad1c73e8e	1568	break;
bfictorie	0:8cdad1c73e8e	1569	}
bfictorie	0:8cdad1c73e8e	1570
bfictorie	0:8cdad1c73e8e	1571	endswitch:
bfictorie	0:8cdad1c73e8e	1572	#if TRACELCP
bfictorie	0:8cdad1c73e8e	1573	if (traceNdx >= 80 - 32) {
bfictorie	0:8cdad1c73e8e	1574	LCPDEBUG(LOG_INFO, ("lcp_reqci: rcvd%s\n", traceBuf));
bfictorie	0:8cdad1c73e8e	1575	traceNdx = 0;
bfictorie	0:8cdad1c73e8e	1576	}
bfictorie	0:8cdad1c73e8e	1577	#endif
bfictorie	0:8cdad1c73e8e	1578	if (orc == CONFACK && /* Good CI */
bfictorie	0:8cdad1c73e8e	1579	rc != CONFACK) { /* but prior CI wasnt? */
bfictorie	0:8cdad1c73e8e	1580	continue; /* Don't send this one */
bfictorie	0:8cdad1c73e8e	1581	}
bfictorie	0:8cdad1c73e8e	1582
bfictorie	0:8cdad1c73e8e	1583	if (orc == CONFNAK) { /* Nak this CI? */
bfictorie	0:8cdad1c73e8e	1584	if (reject_if_disagree /* Getting fed up with sending NAKs? */
bfictorie	0:8cdad1c73e8e	1585	&& citype != CI_MAGICNUMBER) {
bfictorie	0:8cdad1c73e8e	1586	orc = CONFREJ; /* Get tough if so */
bfictorie	0:8cdad1c73e8e	1587	} else {
bfictorie	0:8cdad1c73e8e	1588	if (rc == CONFREJ) { /* Rejecting prior CI? */
bfictorie	0:8cdad1c73e8e	1589	continue; /* Don't send this one */
bfictorie	0:8cdad1c73e8e	1590	}
bfictorie	0:8cdad1c73e8e	1591	rc = CONFNAK;
bfictorie	0:8cdad1c73e8e	1592	}
bfictorie	0:8cdad1c73e8e	1593	}
bfictorie	0:8cdad1c73e8e	1594	if (orc == CONFREJ) { /* Reject this CI */
bfictorie	0:8cdad1c73e8e	1595	rc = CONFREJ;
bfictorie	0:8cdad1c73e8e	1596	if (cip != rejp) { /* Need to move rejected CI? */
bfictorie	0:8cdad1c73e8e	1597	BCOPY(cip, rejp, cilen); /* Move it */
bfictorie	0:8cdad1c73e8e	1598	}
bfictorie	0:8cdad1c73e8e	1599	INCPTR(cilen, rejp); /* Update output pointer */
bfictorie	0:8cdad1c73e8e	1600	}
bfictorie	0:8cdad1c73e8e	1601	}
bfictorie	0:8cdad1c73e8e	1602
bfictorie	0:8cdad1c73e8e	1603	/*
bfictorie	0:8cdad1c73e8e	1604	* If we wanted to send additional NAKs (for unsent CIs), the
bfictorie	0:8cdad1c73e8e	1605	* code would go here. The extra NAKs would go at *nakp.
bfictorie	0:8cdad1c73e8e	1606	* At present there are no cases where we want to ask the
bfictorie	0:8cdad1c73e8e	1607	* peer to negotiate an option.
bfictorie	0:8cdad1c73e8e	1608	*/
bfictorie	0:8cdad1c73e8e	1609
bfictorie	0:8cdad1c73e8e	1610	switch (rc) {
bfictorie	0:8cdad1c73e8e	1611	case CONFACK:
bfictorie	0:8cdad1c73e8e	1612	*lenp = (int)(next - inp);
bfictorie	0:8cdad1c73e8e	1613	break;
bfictorie	0:8cdad1c73e8e	1614	case CONFNAK:
bfictorie	0:8cdad1c73e8e	1615	/*
bfictorie	0:8cdad1c73e8e	1616	* Copy the Nak'd options from the nak_buffer to the caller's buffer.
bfictorie	0:8cdad1c73e8e	1617	*/
bfictorie	0:8cdad1c73e8e	1618	*lenp = (int)(nakp - nak_buffer);
bfictorie	0:8cdad1c73e8e	1619	BCOPY(nak_buffer, inp, *lenp);
bfictorie	0:8cdad1c73e8e	1620	break;
bfictorie	0:8cdad1c73e8e	1621	case CONFREJ:
bfictorie	0:8cdad1c73e8e	1622	*lenp = (int)(rejp - inp);
bfictorie	0:8cdad1c73e8e	1623	break;
bfictorie	0:8cdad1c73e8e	1624	}
bfictorie	0:8cdad1c73e8e	1625
bfictorie	0:8cdad1c73e8e	1626	#if TRACELCP > 0
bfictorie	0:8cdad1c73e8e	1627	if (traceNdx > 0) {
bfictorie	0:8cdad1c73e8e	1628	LCPDEBUG(LOG_INFO, ("lcp_reqci: %s\n", traceBuf));
bfictorie	0:8cdad1c73e8e	1629	}
bfictorie	0:8cdad1c73e8e	1630	#endif
bfictorie	0:8cdad1c73e8e	1631	LCPDEBUG(LOG_INFO, ("lcp_reqci: returning CONF%s.\n", CODENAME(rc)));
bfictorie	0:8cdad1c73e8e	1632	return (rc); /* Return final code */
bfictorie	0:8cdad1c73e8e	1633	}
bfictorie	0:8cdad1c73e8e	1634
bfictorie	0:8cdad1c73e8e	1635
bfictorie	0:8cdad1c73e8e	1636	/*
bfictorie	0:8cdad1c73e8e	1637	* lcp_up - LCP has come UP.
bfictorie	0:8cdad1c73e8e	1638	*/
bfictorie	0:8cdad1c73e8e	1639	static void
bfictorie	0:8cdad1c73e8e	1640	lcp_up(fsm *f)
bfictorie	0:8cdad1c73e8e	1641	{
bfictorie	0:8cdad1c73e8e	1642	lcp_options *wo = &lcp_wantoptions[f->unit];
bfictorie	0:8cdad1c73e8e	1643	lcp_options *ho = &lcp_hisoptions[f->unit];
bfictorie	0:8cdad1c73e8e	1644	lcp_options *go = &lcp_gotoptions[f->unit];
bfictorie	0:8cdad1c73e8e	1645	lcp_options *ao = &lcp_allowoptions[f->unit];
bfictorie	0:8cdad1c73e8e	1646
bfictorie	0:8cdad1c73e8e	1647	if (!go->neg_magicnumber) {
bfictorie	0:8cdad1c73e8e	1648	go->magicnumber = 0;
bfictorie	0:8cdad1c73e8e	1649	}
bfictorie	0:8cdad1c73e8e	1650	if (!ho->neg_magicnumber) {
bfictorie	0:8cdad1c73e8e	1651	ho->magicnumber = 0;
bfictorie	0:8cdad1c73e8e	1652	}
bfictorie	0:8cdad1c73e8e	1653
bfictorie	0:8cdad1c73e8e	1654	/*
bfictorie	0:8cdad1c73e8e	1655	* Set our MTU to the smaller of the MTU we wanted and
bfictorie	0:8cdad1c73e8e	1656	* the MRU our peer wanted. If we negotiated an MRU,
bfictorie	0:8cdad1c73e8e	1657	* set our MRU to the larger of value we wanted and
bfictorie	0:8cdad1c73e8e	1658	* the value we got in the negotiation.
bfictorie	0:8cdad1c73e8e	1659	*/
bfictorie	0:8cdad1c73e8e	1660	ppp_send_config(f->unit, LWIP_MIN(ao->mru, (ho->neg_mru? ho->mru: PPP_MRU)),
bfictorie	0:8cdad1c73e8e	1661	(ho->neg_asyncmap? ho->asyncmap: 0xffffffffl),
bfictorie	0:8cdad1c73e8e	1662	ho->neg_pcompression, ho->neg_accompression);
bfictorie	0:8cdad1c73e8e	1663	/*
bfictorie	0:8cdad1c73e8e	1664	* If the asyncmap hasn't been negotiated, we really should
bfictorie	0:8cdad1c73e8e	1665	* set the receive asyncmap to ffffffff, but we set it to 0
bfictorie	0:8cdad1c73e8e	1666	* for backwards contemptibility.
bfictorie	0:8cdad1c73e8e	1667	*/
bfictorie	0:8cdad1c73e8e	1668	ppp_recv_config(f->unit, (go->neg_mru? LWIP_MAX(wo->mru, go->mru): PPP_MRU),
bfictorie	0:8cdad1c73e8e	1669	(go->neg_asyncmap? go->asyncmap: 0x00000000),
bfictorie	0:8cdad1c73e8e	1670	go->neg_pcompression, go->neg_accompression);
bfictorie	0:8cdad1c73e8e	1671
bfictorie	0:8cdad1c73e8e	1672	if (ho->neg_mru) {
bfictorie	0:8cdad1c73e8e	1673	peer_mru[f->unit] = ho->mru;
bfictorie	0:8cdad1c73e8e	1674	}
bfictorie	0:8cdad1c73e8e	1675
bfictorie	0:8cdad1c73e8e	1676	lcp_echo_lowerup(f->unit); /* Enable echo messages */
bfictorie	0:8cdad1c73e8e	1677
bfictorie	0:8cdad1c73e8e	1678	link_established(f->unit); /* The link is up; authenticate now */
bfictorie	0:8cdad1c73e8e	1679	}
bfictorie	0:8cdad1c73e8e	1680
bfictorie	0:8cdad1c73e8e	1681
bfictorie	0:8cdad1c73e8e	1682	/*
bfictorie	0:8cdad1c73e8e	1683	* lcp_down - LCP has gone DOWN.
bfictorie	0:8cdad1c73e8e	1684	*
bfictorie	0:8cdad1c73e8e	1685	* Alert other protocols.
bfictorie	0:8cdad1c73e8e	1686	*/
bfictorie	0:8cdad1c73e8e	1687	static void
bfictorie	0:8cdad1c73e8e	1688	lcp_down(fsm *f)
bfictorie	0:8cdad1c73e8e	1689	{
bfictorie	0:8cdad1c73e8e	1690	lcp_options *go = &lcp_gotoptions[f->unit];
bfictorie	0:8cdad1c73e8e	1691
bfictorie	0:8cdad1c73e8e	1692	lcp_echo_lowerdown(f->unit);
bfictorie	0:8cdad1c73e8e	1693
bfictorie	0:8cdad1c73e8e	1694	link_down(f->unit);
bfictorie	0:8cdad1c73e8e	1695
bfictorie	0:8cdad1c73e8e	1696	ppp_send_config(f->unit, PPP_MRU, 0xffffffffl, 0, 0);
bfictorie	0:8cdad1c73e8e	1697	ppp_recv_config(f->unit, PPP_MRU,
bfictorie	0:8cdad1c73e8e	1698	(go->neg_asyncmap? go->asyncmap: 0x00000000),
bfictorie	0:8cdad1c73e8e	1699	go->neg_pcompression, go->neg_accompression);
bfictorie	0:8cdad1c73e8e	1700	peer_mru[f->unit] = PPP_MRU;
bfictorie	0:8cdad1c73e8e	1701	}
bfictorie	0:8cdad1c73e8e	1702
bfictorie	0:8cdad1c73e8e	1703
bfictorie	0:8cdad1c73e8e	1704	/*
bfictorie	0:8cdad1c73e8e	1705	* lcp_starting - LCP needs the lower layer up.
bfictorie	0:8cdad1c73e8e	1706	*/
bfictorie	0:8cdad1c73e8e	1707	static void
bfictorie	0:8cdad1c73e8e	1708	lcp_starting(fsm *f)
bfictorie	0:8cdad1c73e8e	1709	{
bfictorie	0:8cdad1c73e8e	1710	link_required(f->unit); /* lwip: currently does nothing */
bfictorie	0:8cdad1c73e8e	1711	}
bfictorie	0:8cdad1c73e8e	1712
bfictorie	0:8cdad1c73e8e	1713
bfictorie	0:8cdad1c73e8e	1714	/*
bfictorie	0:8cdad1c73e8e	1715	* lcp_finished - LCP has finished with the lower layer.
bfictorie	0:8cdad1c73e8e	1716	*/
bfictorie	0:8cdad1c73e8e	1717	static void
bfictorie	0:8cdad1c73e8e	1718	lcp_finished(fsm *f)
bfictorie	0:8cdad1c73e8e	1719	{
bfictorie	0:8cdad1c73e8e	1720	link_terminated(f->unit); /* we are finished with the link */
bfictorie	0:8cdad1c73e8e	1721	}
bfictorie	0:8cdad1c73e8e	1722
bfictorie	0:8cdad1c73e8e	1723
bfictorie	0:8cdad1c73e8e	1724	#if PPP_ADDITIONAL_CALLBACKS
bfictorie	0:8cdad1c73e8e	1725	/*
bfictorie	0:8cdad1c73e8e	1726	* print_string - print a readable representation of a string using
bfictorie	0:8cdad1c73e8e	1727	* printer.
bfictorie	0:8cdad1c73e8e	1728	*/
bfictorie	0:8cdad1c73e8e	1729	static void
bfictorie	0:8cdad1c73e8e	1730	print_string( char p, int len, void (printer) (void , char , ...), void *arg)
bfictorie	0:8cdad1c73e8e	1731	{
bfictorie	0:8cdad1c73e8e	1732	int c;
bfictorie	0:8cdad1c73e8e	1733
bfictorie	0:8cdad1c73e8e	1734	printer(arg, "\"");
bfictorie	0:8cdad1c73e8e	1735	for (; len > 0; --len) {
bfictorie	0:8cdad1c73e8e	1736	c = *p++;
bfictorie	0:8cdad1c73e8e	1737	if (' ' <= c && c <= '~') {
bfictorie	0:8cdad1c73e8e	1738	if (c == '\\' \|\| c == '"') {
bfictorie	0:8cdad1c73e8e	1739	printer(arg, "\\");
bfictorie	0:8cdad1c73e8e	1740	}
bfictorie	0:8cdad1c73e8e	1741	printer(arg, "%c", c);
bfictorie	0:8cdad1c73e8e	1742	} else {
bfictorie	0:8cdad1c73e8e	1743	switch (c) {
bfictorie	0:8cdad1c73e8e	1744	case '\n':
bfictorie	0:8cdad1c73e8e	1745	printer(arg, "\\n");
bfictorie	0:8cdad1c73e8e	1746	break;
bfictorie	0:8cdad1c73e8e	1747	case '\r':
bfictorie	0:8cdad1c73e8e	1748	printer(arg, "\\r");
bfictorie	0:8cdad1c73e8e	1749	break;
bfictorie	0:8cdad1c73e8e	1750	case '\t':
bfictorie	0:8cdad1c73e8e	1751	printer(arg, "\\t");
bfictorie	0:8cdad1c73e8e	1752	break;
bfictorie	0:8cdad1c73e8e	1753	default:
bfictorie	0:8cdad1c73e8e	1754	printer(arg, "\\%.3o", c);
bfictorie	0:8cdad1c73e8e	1755	}
bfictorie	0:8cdad1c73e8e	1756	}
bfictorie	0:8cdad1c73e8e	1757	}
bfictorie	0:8cdad1c73e8e	1758	printer(arg, "\"");
bfictorie	0:8cdad1c73e8e	1759	}
bfictorie	0:8cdad1c73e8e	1760
bfictorie	0:8cdad1c73e8e	1761
bfictorie	0:8cdad1c73e8e	1762	/*
bfictorie	0:8cdad1c73e8e	1763	* lcp_printpkt - print the contents of an LCP packet.
bfictorie	0:8cdad1c73e8e	1764	*/
bfictorie	0:8cdad1c73e8e	1765	static char *lcp_codenames[] = {
bfictorie	0:8cdad1c73e8e	1766	"ConfReq", "ConfAck", "ConfNak", "ConfRej",
bfictorie	0:8cdad1c73e8e	1767	"TermReq", "TermAck", "CodeRej", "ProtRej",
bfictorie	0:8cdad1c73e8e	1768	"EchoReq", "EchoRep", "DiscReq"
bfictorie	0:8cdad1c73e8e	1769	};
bfictorie	0:8cdad1c73e8e	1770
bfictorie	0:8cdad1c73e8e	1771	static int
bfictorie	0:8cdad1c73e8e	1772	lcp_printpkt( u_char p, int plen, void (printer) (void , char , ...), void *arg)
bfictorie	0:8cdad1c73e8e	1773	{
bfictorie	0:8cdad1c73e8e	1774	int code, id, len, olen;
bfictorie	0:8cdad1c73e8e	1775	u_char pstart, optend;
bfictorie	0:8cdad1c73e8e	1776	u_short cishort;
bfictorie	0:8cdad1c73e8e	1777	u32_t cilong;
bfictorie	0:8cdad1c73e8e	1778
bfictorie	0:8cdad1c73e8e	1779	if (plen < HEADERLEN) {
bfictorie	0:8cdad1c73e8e	1780	return 0;
bfictorie	0:8cdad1c73e8e	1781	}
bfictorie	0:8cdad1c73e8e	1782	pstart = p;
bfictorie	0:8cdad1c73e8e	1783	GETCHAR(code, p);
bfictorie	0:8cdad1c73e8e	1784	GETCHAR(id, p);
bfictorie	0:8cdad1c73e8e	1785	GETSHORT(len, p);
bfictorie	0:8cdad1c73e8e	1786	if (len < HEADERLEN \|\| len > plen) {
bfictorie	0:8cdad1c73e8e	1787	return 0;
bfictorie	0:8cdad1c73e8e	1788	}
bfictorie	0:8cdad1c73e8e	1789
bfictorie	0:8cdad1c73e8e	1790	if (code >= 1 && code <= sizeof(lcp_codenames) / sizeof(char *)) {
bfictorie	0:8cdad1c73e8e	1791	printer(arg, " %s", lcp_codenames[code-1]);
bfictorie	0:8cdad1c73e8e	1792	} else {
bfictorie	0:8cdad1c73e8e	1793	printer(arg, " code=0x%x", code);
bfictorie	0:8cdad1c73e8e	1794	}
bfictorie	0:8cdad1c73e8e	1795	printer(arg, " id=0x%x", id);
bfictorie	0:8cdad1c73e8e	1796	len -= HEADERLEN;
bfictorie	0:8cdad1c73e8e	1797	switch (code) {
bfictorie	0:8cdad1c73e8e	1798	case CONFREQ:
bfictorie	0:8cdad1c73e8e	1799	case CONFACK:
bfictorie	0:8cdad1c73e8e	1800	case CONFNAK:
bfictorie	0:8cdad1c73e8e	1801	case CONFREJ:
bfictorie	0:8cdad1c73e8e	1802	/* print option list */
bfictorie	0:8cdad1c73e8e	1803	while (len >= 2) {
bfictorie	0:8cdad1c73e8e	1804	GETCHAR(code, p);
bfictorie	0:8cdad1c73e8e	1805	GETCHAR(olen, p);
bfictorie	0:8cdad1c73e8e	1806	p -= 2;
bfictorie	0:8cdad1c73e8e	1807	if (olen < 2 \|\| olen > len) {
bfictorie	0:8cdad1c73e8e	1808	break;
bfictorie	0:8cdad1c73e8e	1809	}
bfictorie	0:8cdad1c73e8e	1810	printer(arg, " <");
bfictorie	0:8cdad1c73e8e	1811	len -= olen;
bfictorie	0:8cdad1c73e8e	1812	optend = p + olen;
bfictorie	0:8cdad1c73e8e	1813	switch (code) {
bfictorie	0:8cdad1c73e8e	1814	case CI_MRU:
bfictorie	0:8cdad1c73e8e	1815	if (olen == CILEN_SHORT) {
bfictorie	0:8cdad1c73e8e	1816	p += 2;
bfictorie	0:8cdad1c73e8e	1817	GETSHORT(cishort, p);
bfictorie	0:8cdad1c73e8e	1818	printer(arg, "mru %d", cishort);
bfictorie	0:8cdad1c73e8e	1819	}
bfictorie	0:8cdad1c73e8e	1820	break;
bfictorie	0:8cdad1c73e8e	1821	case CI_ASYNCMAP:
bfictorie	0:8cdad1c73e8e	1822	if (olen == CILEN_LONG) {
bfictorie	0:8cdad1c73e8e	1823	p += 2;
bfictorie	0:8cdad1c73e8e	1824	GETLONG(cilong, p);
bfictorie	0:8cdad1c73e8e	1825	printer(arg, "asyncmap 0x%lx", cilong);
bfictorie	0:8cdad1c73e8e	1826	}
bfictorie	0:8cdad1c73e8e	1827	break;
bfictorie	0:8cdad1c73e8e	1828	case CI_AUTHTYPE:
bfictorie	0:8cdad1c73e8e	1829	if (olen >= CILEN_SHORT) {
bfictorie	0:8cdad1c73e8e	1830	p += 2;
bfictorie	0:8cdad1c73e8e	1831	printer(arg, "auth ");
bfictorie	0:8cdad1c73e8e	1832	GETSHORT(cishort, p);
bfictorie	0:8cdad1c73e8e	1833	switch (cishort) {
bfictorie	0:8cdad1c73e8e	1834	case PPP_PAP:
bfictorie	0:8cdad1c73e8e	1835	printer(arg, "pap");
bfictorie	0:8cdad1c73e8e	1836	break;
bfictorie	0:8cdad1c73e8e	1837	case PPP_CHAP:
bfictorie	0:8cdad1c73e8e	1838	printer(arg, "chap");
bfictorie	0:8cdad1c73e8e	1839	break;
bfictorie	0:8cdad1c73e8e	1840	default:
bfictorie	0:8cdad1c73e8e	1841	printer(arg, "0x%x", cishort);
bfictorie	0:8cdad1c73e8e	1842	}
bfictorie	0:8cdad1c73e8e	1843	}
bfictorie	0:8cdad1c73e8e	1844	break;
bfictorie	0:8cdad1c73e8e	1845	case CI_QUALITY:
bfictorie	0:8cdad1c73e8e	1846	if (olen >= CILEN_SHORT) {
bfictorie	0:8cdad1c73e8e	1847	p += 2;
bfictorie	0:8cdad1c73e8e	1848	printer(arg, "quality ");
bfictorie	0:8cdad1c73e8e	1849	GETSHORT(cishort, p);
bfictorie	0:8cdad1c73e8e	1850	switch (cishort) {
bfictorie	0:8cdad1c73e8e	1851	case PPP_LQR:
bfictorie	0:8cdad1c73e8e	1852	printer(arg, "lqr");
bfictorie	0:8cdad1c73e8e	1853	break;
bfictorie	0:8cdad1c73e8e	1854	default:
bfictorie	0:8cdad1c73e8e	1855	printer(arg, "0x%x", cishort);
bfictorie	0:8cdad1c73e8e	1856	}
bfictorie	0:8cdad1c73e8e	1857	}
bfictorie	0:8cdad1c73e8e	1858	break;
bfictorie	0:8cdad1c73e8e	1859	case CI_CALLBACK:
bfictorie	0:8cdad1c73e8e	1860	if (olen >= CILEN_CHAR) {
bfictorie	0:8cdad1c73e8e	1861	p += 2;
bfictorie	0:8cdad1c73e8e	1862	printer(arg, "callback ");
bfictorie	0:8cdad1c73e8e	1863	GETSHORT(cishort, p);
bfictorie	0:8cdad1c73e8e	1864	switch (cishort) {
bfictorie	0:8cdad1c73e8e	1865	case CBCP_OPT:
bfictorie	0:8cdad1c73e8e	1866	printer(arg, "CBCP");
bfictorie	0:8cdad1c73e8e	1867	break;
bfictorie	0:8cdad1c73e8e	1868	default:
bfictorie	0:8cdad1c73e8e	1869	printer(arg, "0x%x", cishort);
bfictorie	0:8cdad1c73e8e	1870	}
bfictorie	0:8cdad1c73e8e	1871	}
bfictorie	0:8cdad1c73e8e	1872	break;
bfictorie	0:8cdad1c73e8e	1873	case CI_MAGICNUMBER:
bfictorie	0:8cdad1c73e8e	1874	if (olen == CILEN_LONG) {
bfictorie	0:8cdad1c73e8e	1875	p += 2;
bfictorie	0:8cdad1c73e8e	1876	GETLONG(cilong, p);
bfictorie	0:8cdad1c73e8e	1877	printer(arg, "magic 0x%x", cilong);
bfictorie	0:8cdad1c73e8e	1878	}
bfictorie	0:8cdad1c73e8e	1879	break;
bfictorie	0:8cdad1c73e8e	1880	case CI_PCOMPRESSION:
bfictorie	0:8cdad1c73e8e	1881	if (olen == CILEN_VOID) {
bfictorie	0:8cdad1c73e8e	1882	p += 2;
bfictorie	0:8cdad1c73e8e	1883	printer(arg, "pcomp");
bfictorie	0:8cdad1c73e8e	1884	}
bfictorie	0:8cdad1c73e8e	1885	break;
bfictorie	0:8cdad1c73e8e	1886	case CI_ACCOMPRESSION:
bfictorie	0:8cdad1c73e8e	1887	if (olen == CILEN_VOID) {
bfictorie	0:8cdad1c73e8e	1888	p += 2;
bfictorie	0:8cdad1c73e8e	1889	printer(arg, "accomp");
bfictorie	0:8cdad1c73e8e	1890	}
bfictorie	0:8cdad1c73e8e	1891	break;
bfictorie	0:8cdad1c73e8e	1892	}
bfictorie	0:8cdad1c73e8e	1893	while (p < optend) {
bfictorie	0:8cdad1c73e8e	1894	GETCHAR(code, p);
bfictorie	0:8cdad1c73e8e	1895	printer(arg, " %.2x", code);
bfictorie	0:8cdad1c73e8e	1896	}
bfictorie	0:8cdad1c73e8e	1897	printer(arg, ">");
bfictorie	0:8cdad1c73e8e	1898	}
bfictorie	0:8cdad1c73e8e	1899	break;
bfictorie	0:8cdad1c73e8e	1900
bfictorie	0:8cdad1c73e8e	1901	case TERMACK:
bfictorie	0:8cdad1c73e8e	1902	case TERMREQ:
bfictorie	0:8cdad1c73e8e	1903	if (len > 0 && p >= ' ' && p < 0x7f) {
bfictorie	0:8cdad1c73e8e	1904	printer(arg, " ");
bfictorie	0:8cdad1c73e8e	1905	print_string((char*)p, len, printer, arg);
bfictorie	0:8cdad1c73e8e	1906	p += len;
bfictorie	0:8cdad1c73e8e	1907	len = 0;
bfictorie	0:8cdad1c73e8e	1908	}
bfictorie	0:8cdad1c73e8e	1909	break;
bfictorie	0:8cdad1c73e8e	1910
bfictorie	0:8cdad1c73e8e	1911	case ECHOREQ:
bfictorie	0:8cdad1c73e8e	1912	case ECHOREP:
bfictorie	0:8cdad1c73e8e	1913	case DISCREQ:
bfictorie	0:8cdad1c73e8e	1914	if (len >= 4) {
bfictorie	0:8cdad1c73e8e	1915	GETLONG(cilong, p);
bfictorie	0:8cdad1c73e8e	1916	printer(arg, " magic=0x%x", cilong);
bfictorie	0:8cdad1c73e8e	1917	p += 4;
bfictorie	0:8cdad1c73e8e	1918	len -= 4;
bfictorie	0:8cdad1c73e8e	1919	}
bfictorie	0:8cdad1c73e8e	1920	break;
bfictorie	0:8cdad1c73e8e	1921	}
bfictorie	0:8cdad1c73e8e	1922
bfictorie	0:8cdad1c73e8e	1923	/* print the rest of the bytes in the packet */
bfictorie	0:8cdad1c73e8e	1924	for (; len > 0; --len) {
bfictorie	0:8cdad1c73e8e	1925	GETCHAR(code, p);
bfictorie	0:8cdad1c73e8e	1926	printer(arg, " %.2x", code);
bfictorie	0:8cdad1c73e8e	1927	}
bfictorie	0:8cdad1c73e8e	1928
bfictorie	0:8cdad1c73e8e	1929	return (int)(p - pstart);
bfictorie	0:8cdad1c73e8e	1930	}
bfictorie	0:8cdad1c73e8e	1931	#endif /* PPP_ADDITIONAL_CALLBACKS */
bfictorie	0:8cdad1c73e8e	1932
bfictorie	0:8cdad1c73e8e	1933	/*
bfictorie	0:8cdad1c73e8e	1934	* Time to shut down the link because there is nothing out there.
bfictorie	0:8cdad1c73e8e	1935	*/
bfictorie	0:8cdad1c73e8e	1936	static void
bfictorie	0:8cdad1c73e8e	1937	LcpLinkFailure (fsm *f)
bfictorie	0:8cdad1c73e8e	1938	{
bfictorie	0:8cdad1c73e8e	1939	if (f->state == LS_OPENED) {
bfictorie	0:8cdad1c73e8e	1940	LCPDEBUG(LOG_INFO, ("No response to %d echo-requests\n", lcp_echos_pending));
bfictorie	0:8cdad1c73e8e	1941	LCPDEBUG(LOG_NOTICE, ("Serial link appears to be disconnected.\n"));
bfictorie	0:8cdad1c73e8e	1942	lcp_close(f->unit, "Peer not responding");
bfictorie	0:8cdad1c73e8e	1943	}
bfictorie	0:8cdad1c73e8e	1944	}
bfictorie	0:8cdad1c73e8e	1945
bfictorie	0:8cdad1c73e8e	1946	/*
bfictorie	0:8cdad1c73e8e	1947	* Timer expired for the LCP echo requests from this process.
bfictorie	0:8cdad1c73e8e	1948	*/
bfictorie	0:8cdad1c73e8e	1949	static void
bfictorie	0:8cdad1c73e8e	1950	LcpEchoCheck (fsm *f)
bfictorie	0:8cdad1c73e8e	1951	{
bfictorie	0:8cdad1c73e8e	1952	LcpSendEchoRequest (f);
bfictorie	0:8cdad1c73e8e	1953
bfictorie	0:8cdad1c73e8e	1954	/*
bfictorie	0:8cdad1c73e8e	1955	* Start the timer for the next interval.
bfictorie	0:8cdad1c73e8e	1956	*/
bfictorie	0:8cdad1c73e8e	1957	LWIP_ASSERT("lcp_echo_timer_running == 0", lcp_echo_timer_running == 0);
bfictorie	0:8cdad1c73e8e	1958
bfictorie	0:8cdad1c73e8e	1959	TIMEOUT (LcpEchoTimeout, f, lcp_echo_interval);
bfictorie	0:8cdad1c73e8e	1960	lcp_echo_timer_running = 1;
bfictorie	0:8cdad1c73e8e	1961	}
bfictorie	0:8cdad1c73e8e	1962
bfictorie	0:8cdad1c73e8e	1963	/*
bfictorie	0:8cdad1c73e8e	1964	* LcpEchoTimeout - Timer expired on the LCP echo
bfictorie	0:8cdad1c73e8e	1965	*/
bfictorie	0:8cdad1c73e8e	1966	static void
bfictorie	0:8cdad1c73e8e	1967	LcpEchoTimeout (void *arg)
bfictorie	0:8cdad1c73e8e	1968	{
bfictorie	0:8cdad1c73e8e	1969	if (lcp_echo_timer_running != 0) {
bfictorie	0:8cdad1c73e8e	1970	lcp_echo_timer_running = 0;
bfictorie	0:8cdad1c73e8e	1971	LcpEchoCheck ((fsm *) arg);
bfictorie	0:8cdad1c73e8e	1972	}
bfictorie	0:8cdad1c73e8e	1973	}
bfictorie	0:8cdad1c73e8e	1974
bfictorie	0:8cdad1c73e8e	1975	/*
bfictorie	0:8cdad1c73e8e	1976	* LcpEchoReply - LCP has received a reply to the echo
bfictorie	0:8cdad1c73e8e	1977	*/
bfictorie	0:8cdad1c73e8e	1978	static void
bfictorie	0:8cdad1c73e8e	1979	lcp_received_echo_reply (fsm f, int id, u_char inp, int len)
bfictorie	0:8cdad1c73e8e	1980	{
bfictorie	0:8cdad1c73e8e	1981	u32_t magic;
bfictorie	0:8cdad1c73e8e	1982
bfictorie	0:8cdad1c73e8e	1983	LWIP_UNUSED_ARG(id);
bfictorie	0:8cdad1c73e8e	1984
bfictorie	0:8cdad1c73e8e	1985	/* Check the magic number - don't count replies from ourselves. */
bfictorie	0:8cdad1c73e8e	1986	if (len < 4) {
bfictorie	0:8cdad1c73e8e	1987	LCPDEBUG(LOG_WARNING, ("lcp: received short Echo-Reply, length %d\n", len));
bfictorie	0:8cdad1c73e8e	1988	return;
bfictorie	0:8cdad1c73e8e	1989	}
bfictorie	0:8cdad1c73e8e	1990	GETLONG(magic, inp);
bfictorie	0:8cdad1c73e8e	1991	if (lcp_gotoptions[f->unit].neg_magicnumber && magic == lcp_gotoptions[f->unit].magicnumber) {
bfictorie	0:8cdad1c73e8e	1992	LCPDEBUG(LOG_WARNING, ("appear to have received our own echo-reply!\n"));
bfictorie	0:8cdad1c73e8e	1993	return;
bfictorie	0:8cdad1c73e8e	1994	}
bfictorie	0:8cdad1c73e8e	1995
bfictorie	0:8cdad1c73e8e	1996	/* Reset the number of outstanding echo frames */
bfictorie	0:8cdad1c73e8e	1997	lcp_echos_pending = 0;
bfictorie	0:8cdad1c73e8e	1998	}
bfictorie	0:8cdad1c73e8e	1999
bfictorie	0:8cdad1c73e8e	2000	/*
bfictorie	0:8cdad1c73e8e	2001	* LcpSendEchoRequest - Send an echo request frame to the peer
bfictorie	0:8cdad1c73e8e	2002	*/
bfictorie	0:8cdad1c73e8e	2003	static void
bfictorie	0:8cdad1c73e8e	2004	LcpSendEchoRequest (fsm *f)
bfictorie	0:8cdad1c73e8e	2005	{
bfictorie	0:8cdad1c73e8e	2006	u32_t lcp_magic;
bfictorie	0:8cdad1c73e8e	2007	u_char pkt[4], *pktp;
bfictorie	0:8cdad1c73e8e	2008
bfictorie	0:8cdad1c73e8e	2009	/*
bfictorie	0:8cdad1c73e8e	2010	* Detect the failure of the peer at this point.
bfictorie	0:8cdad1c73e8e	2011	*/
bfictorie	0:8cdad1c73e8e	2012	if (lcp_echo_fails != 0) {
bfictorie	0:8cdad1c73e8e	2013	if (lcp_echos_pending >= lcp_echo_fails) {
bfictorie	0:8cdad1c73e8e	2014	LcpLinkFailure(f);
bfictorie	0:8cdad1c73e8e	2015	lcp_echos_pending = 0;
bfictorie	0:8cdad1c73e8e	2016	}
bfictorie	0:8cdad1c73e8e	2017	}
bfictorie	0:8cdad1c73e8e	2018
bfictorie	0:8cdad1c73e8e	2019	/*
bfictorie	0:8cdad1c73e8e	2020	* Make and send the echo request frame.
bfictorie	0:8cdad1c73e8e	2021	*/
bfictorie	0:8cdad1c73e8e	2022	if (f->state == LS_OPENED) {
bfictorie	0:8cdad1c73e8e	2023	lcp_magic = lcp_gotoptions[f->unit].magicnumber;
bfictorie	0:8cdad1c73e8e	2024	pktp = pkt;
bfictorie	0:8cdad1c73e8e	2025	PUTLONG(lcp_magic, pktp);
bfictorie	0:8cdad1c73e8e	2026	fsm_sdata(f, ECHOREQ, (u_char)(lcp_echo_number++ & 0xFF), pkt, (int)(pktp - pkt));
bfictorie	0:8cdad1c73e8e	2027	++lcp_echos_pending;
bfictorie	0:8cdad1c73e8e	2028	}
bfictorie	0:8cdad1c73e8e	2029	}
bfictorie	0:8cdad1c73e8e	2030
bfictorie	0:8cdad1c73e8e	2031	/*
bfictorie	0:8cdad1c73e8e	2032	* lcp_echo_lowerup - Start the timer for the LCP frame
bfictorie	0:8cdad1c73e8e	2033	*/
bfictorie	0:8cdad1c73e8e	2034
bfictorie	0:8cdad1c73e8e	2035	static void
bfictorie	0:8cdad1c73e8e	2036	lcp_echo_lowerup (int unit)
bfictorie	0:8cdad1c73e8e	2037	{
bfictorie	0:8cdad1c73e8e	2038	fsm *f = &lcp_fsm[unit];
bfictorie	0:8cdad1c73e8e	2039
bfictorie	0:8cdad1c73e8e	2040	/* Clear the parameters for generating echo frames */
bfictorie	0:8cdad1c73e8e	2041	lcp_echos_pending = 0;
bfictorie	0:8cdad1c73e8e	2042	lcp_echo_number = 0;
bfictorie	0:8cdad1c73e8e	2043	lcp_echo_timer_running = 0;
bfictorie	0:8cdad1c73e8e	2044
bfictorie	0:8cdad1c73e8e	2045	/* If a timeout interval is specified then start the timer */
bfictorie	0:8cdad1c73e8e	2046	if (lcp_echo_interval != 0) {
bfictorie	0:8cdad1c73e8e	2047	LcpEchoCheck (f);
bfictorie	0:8cdad1c73e8e	2048	}
bfictorie	0:8cdad1c73e8e	2049	}
bfictorie	0:8cdad1c73e8e	2050
bfictorie	0:8cdad1c73e8e	2051	/*
bfictorie	0:8cdad1c73e8e	2052	* lcp_echo_lowerdown - Stop the timer for the LCP frame
bfictorie	0:8cdad1c73e8e	2053	*/
bfictorie	0:8cdad1c73e8e	2054
bfictorie	0:8cdad1c73e8e	2055	static void
bfictorie	0:8cdad1c73e8e	2056	lcp_echo_lowerdown (int unit)
bfictorie	0:8cdad1c73e8e	2057	{
bfictorie	0:8cdad1c73e8e	2058	fsm *f = &lcp_fsm[unit];
bfictorie	0:8cdad1c73e8e	2059
bfictorie	0:8cdad1c73e8e	2060	if (lcp_echo_timer_running != 0) {
bfictorie	0:8cdad1c73e8e	2061	UNTIMEOUT (LcpEchoTimeout, f);
bfictorie	0:8cdad1c73e8e	2062	lcp_echo_timer_running = 0;
bfictorie	0:8cdad1c73e8e	2063	}
bfictorie	0:8cdad1c73e8e	2064	}
bfictorie	0:8cdad1c73e8e	2065
bfictorie	0:8cdad1c73e8e	2066	#endif /* PPP_SUPPORT */

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Type:	Program
Mbed OS support:	Mbed 2 deprecated
Created:	25 Mar 2012
Imports:	10
Forks:	0
Commits:	1
Dependents:	0
Dependencies:	1
Followers:	1

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NetServices/lwip/netif/ppp/lcp.c@0:8cdad1c73e8e, 2012-03-25 (annotated)

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NetServices/lwip/netif/ppp/lcp.c@0:8cdad1c73e8e, 2012-03-25 (annotated)

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