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/*****************************************************************************
* lcp.h - Network Link Control Protocol header file.
*
* Copyright (c) 2003 by Marc Boucher, Services Informatiques (MBSI) inc.
* portions Copyright (c) 1997 Global Election Systems Inc.
*
* The authors hereby grant permission to use, copy, modify, distribute,
* and license this software and its documentation for any purpose, provided
* that existing copyright notices are retained in all copies and that this
* notice and the following disclaimer are included verbatim in any
* distributions. No written agreement, license, or royalty fee is required
* for any of the authorized uses.
*
* THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS *AS IS* AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
******************************************************************************
* REVISION HISTORY
*
* 03-01-01 Marc Boucher <marc@mbsi.ca>
* Ported to lwIP.
* 97-11-05 Guy Lancaster <glanca@gesn.com>, Global Election Systems Inc.
* Original derived from BSD codes.
*****************************************************************************/
/*
* lcp.h - Link Control Protocol definitions.
*
* Copyright (c) 1989 Carnegie Mellon University.
* All rights reserved.
*
* Redistribution and use in source and binary forms are permitted
* provided that the above copyright notice and this paragraph are
* duplicated in all such forms and that any documentation,
* advertising materials, and other materials related to such
* distribution and use acknowledge that the software was developed
* by Carnegie Mellon University. The name of the
* University may not be used to endorse or promote products derived
* from this software without specific prior written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*
* $Id: lcp.h,v 1.4 2010/01/18 20:49:43 goldsimon Exp $
*/
#ifndef LCP_H
#define LCP_H
/*
* Options.
*/
#define CI_MRU 1 /* Maximum Receive Unit */
#define CI_ASYNCMAP 2 /* Async Control Character Map */
#define CI_AUTHTYPE 3 /* Authentication Type */
#define CI_QUALITY 4 /* Quality Protocol */
#define CI_MAGICNUMBER 5 /* Magic Number */
#define CI_PCOMPRESSION 7 /* Protocol Field Compression */
#define CI_ACCOMPRESSION 8 /* Address/Control Field Compression */
#define CI_CALLBACK 13 /* callback */
#define CI_MRRU 17 /* max reconstructed receive unit; multilink */
#define CI_SSNHF 18 /* short sequence numbers for multilink */
#define CI_EPDISC 19 /* endpoint discriminator */
/*
* LCP-specific packet types (code numbers).
*/
#define PROTREJ 8 /* Protocol Reject */
#define ECHOREQ 9 /* Echo Request */
#define ECHOREP 10 /* Echo Reply */
#define DISCREQ 11 /* Discard Request */
#define CBCP_OPT 6 /* Use callback control protocol */
/*
* The state of options is described by an lcp_options structure.
*/
typedef struct lcp_options {
u_int passive : 1; /* Don't die if we don't get a response */
u_int silent : 1; /* Wait for the other end to start first */
u_int restart : 1; /* Restart vs. exit after close */
u_int neg_mru : 1; /* Negotiate the MRU? */
u_int neg_asyncmap : 1; /* Negotiate the async map? */
u_int neg_upap : 1; /* Ask for UPAP authentication? */
u_int neg_chap : 1; /* Ask for CHAP authentication? */
u_int neg_magicnumber : 1; /* Ask for magic number? */
u_int neg_pcompression : 1; /* HDLC Protocol Field Compression? */
u_int neg_accompression : 1; /* HDLC Address/Control Field Compression? */
u_int neg_lqr : 1; /* Negotiate use of Link Quality Reports */
u_int neg_cbcp : 1; /* Negotiate use of CBCP */
#ifdef PPP_MULTILINK
u_int neg_mrru : 1; /* Negotiate multilink MRRU */
u_int neg_ssnhf : 1; /* Negotiate short sequence numbers */
u_int neg_endpoint : 1; /* Negotiate endpoint discriminator */
#endif
u_short mru; /* Value of MRU */
#ifdef PPP_MULTILINK
u_short mrru; /* Value of MRRU, and multilink enable */
#endif
u_char chap_mdtype; /* which MD type (hashing algorithm) */
u32_t asyncmap; /* Value of async map */
u32_t magicnumber;
int numloops; /* Number of loops during magic number neg. */
u32_t lqr_period; /* Reporting period for LQR 1/100ths second */
#ifdef PPP_MULTILINK
struct epdisc endpoint; /* endpoint discriminator */
#endif
} lcp_options;
/*
* Values for phase from BSD pppd.h based on RFC 1661.
*/
typedef enum {
PHASE_DEAD = 0,
PHASE_INITIALIZE,
PHASE_ESTABLISH,
PHASE_AUTHENTICATE,
PHASE_CALLBACK,
PHASE_NETWORK,
PHASE_TERMINATE
} LinkPhase;
extern LinkPhase lcp_phase[NUM_PPP]; /* Phase of link session (RFC 1661) */
extern lcp_options lcp_wantoptions[];
extern lcp_options lcp_gotoptions[];
extern lcp_options lcp_allowoptions[];
extern lcp_options lcp_hisoptions[];
extern ext_accm xmit_accm[];
void lcp_init (int);
void lcp_open (int);
void lcp_close (int, char *);
void lcp_lowerup (int);
void lcp_lowerdown(int);
void lcp_sprotrej (int, u_char *, int); /* send protocol reject */
extern struct protent lcp_protent;
/* Default number of times we receive our magic number from the peer
before deciding the link is looped-back. */
#define DEFLOOPBACKFAIL 10
#endif /* LCP_H */
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