lcp.h
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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 1.1 2003/05/27 14:37:56 jani Exp $
- */
- #ifndef LCP_H
- #define LCP_H
- /*************************
- *** PUBLIC DEFINITIONS ***
- *************************/
- /*
- * 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.
- */
- #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 */
- /************************
- *** PUBLIC DATA TYPES ***
- ************************/
- /*
- * 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;
- /*****************************
- *** PUBLIC DATA STRUCTURES ***
- *****************************/
- 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[];
- /***********************
- *** PUBLIC FUNCTIONS ***
- ***********************/
- 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 */