/***************************************************************************** * 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 * Ported to lwIP. * 97-11-05 Guy Lancaster , 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 1.1.2.1 2003/06/04 17:00:46 likewise 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 */