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/***************************************************************************** |
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* lcp.h - Network Link Control Protocol header file. |
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* |
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* Copyright (c) 2003 by Marc Boucher, Services Informatiques (MBSI) inc. |
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* portions Copyright (c) 1997 Global Election Systems Inc. |
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* |
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* The authors hereby grant permission to use, copy, modify, distribute, |
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* and license this software and its documentation for any purpose, provided |
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* that existing copyright notices are retained in all copies and that this |
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* notice and the following disclaimer are included verbatim in any |
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* distributions. No written agreement, license, or royalty fee is required |
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* for any of the authorized uses. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS *AS IS* AND ANY EXPRESS OR |
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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* IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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* |
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****************************************************************************** |
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* REVISION HISTORY |
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* |
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* 03-01-01 Marc Boucher <marc@mbsi.ca> |
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* Ported to lwIP. |
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* 97-11-05 Guy Lancaster <glanca@gesn.com>, Global Election Systems Inc. |
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* Original derived from BSD codes. |
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*****************************************************************************/ |
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/* |
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* lcp.h - Link Control Protocol definitions. |
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* |
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* Copyright (c) 1989 Carnegie Mellon University. |
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* All rights reserved. |
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* |
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* Redistribution and use in source and binary forms are permitted |
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* provided that the above copyright notice and this paragraph are |
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* duplicated in all such forms and that any documentation, |
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* advertising materials, and other materials related to such |
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* distribution and use acknowledge that the software was developed |
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* by Carnegie Mellon University. The name of the |
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* University may not be used to endorse or promote products derived |
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* from this software without specific prior written permission. |
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR |
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* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED |
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* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. |
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* |
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* $Id: lcp.h,v 1.1 2003/05/27 14:37:56 jani Exp $ |
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*/ |
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#ifndef LCP_H |
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#define LCP_H |
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/************************* |
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*** PUBLIC DEFINITIONS *** |
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*************************/ |
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/* |
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* Options. |
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*/ |
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#define CI_MRU 1 /* Maximum Receive Unit */ |
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#define CI_ASYNCMAP 2 /* Async Control Character Map */ |
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#define CI_AUTHTYPE 3 /* Authentication Type */ |
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#define CI_QUALITY 4 /* Quality Protocol */ |
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#define CI_MAGICNUMBER 5 /* Magic Number */ |
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#define CI_PCOMPRESSION 7 /* Protocol Field Compression */ |
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#define CI_ACCOMPRESSION 8 /* Address/Control Field Compression */ |
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#define CI_CALLBACK 13 /* callback */ |
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#define CI_MRRU 17 /* max reconstructed receive unit; multilink */ |
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#define CI_SSNHF 18 /* short sequence numbers for multilink */ |
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#define CI_EPDISC 19 /* endpoint discriminator */ |
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/* |
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* LCP-specific packet types. |
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*/ |
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#define PROTREJ 8 /* Protocol Reject */ |
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#define ECHOREQ 9 /* Echo Request */ |
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#define ECHOREP 10 /* Echo Reply */ |
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#define DISCREQ 11 /* Discard Request */ |
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#define CBCP_OPT 6 /* Use callback control protocol */ |
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/************************ |
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*** PUBLIC DATA TYPES *** |
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************************/ |
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/* |
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* The state of options is described by an lcp_options structure. |
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*/ |
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typedef struct lcp_options { |
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u_int passive : 1; /* Don't die if we don't get a response */ |
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u_int silent : 1; /* Wait for the other end to start first */ |
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u_int restart : 1; /* Restart vs. exit after close */ |
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u_int neg_mru : 1; /* Negotiate the MRU? */ |
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u_int neg_asyncmap : 1; /* Negotiate the async map? */ |
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u_int neg_upap : 1; /* Ask for UPAP authentication? */ |
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u_int neg_chap : 1; /* Ask for CHAP authentication? */ |
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u_int neg_magicnumber : 1; /* Ask for magic number? */ |
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u_int neg_pcompression : 1; /* HDLC Protocol Field Compression? */ |
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u_int neg_accompression : 1; /* HDLC Address/Control Field Compression? */ |
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u_int neg_lqr : 1; /* Negotiate use of Link Quality Reports */ |
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u_int neg_cbcp : 1; /* Negotiate use of CBCP */ |
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#ifdef PPP_MULTILINK |
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u_int neg_mrru : 1; /* Negotiate multilink MRRU */ |
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u_int neg_ssnhf : 1; /* Negotiate short sequence numbers */ |
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u_int neg_endpoint : 1; /* Negotiate endpoint discriminator */ |
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#endif |
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u_short mru; /* Value of MRU */ |
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#ifdef PPP_MULTILINK |
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u_short mrru; /* Value of MRRU, and multilink enable */ |
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#endif |
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u_char chap_mdtype; /* which MD type (hashing algorithm) */ |
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u32_t asyncmap; /* Value of async map */ |
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u32_t magicnumber; |
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int numloops; /* Number of loops during magic number neg. */ |
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u32_t lqr_period; /* Reporting period for LQR 1/100ths second */ |
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#ifdef PPP_MULTILINK |
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struct epdisc endpoint; /* endpoint discriminator */ |
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#endif |
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} lcp_options; |
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/* |
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* Values for phase from BSD pppd.h based on RFC 1661. |
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*/ |
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typedef enum { |
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PHASE_DEAD = 0, |
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PHASE_INITIALIZE, |
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PHASE_ESTABLISH, |
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PHASE_AUTHENTICATE, |
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PHASE_CALLBACK, |
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PHASE_NETWORK, |
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PHASE_TERMINATE |
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} LinkPhase; |
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/***************************** |
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*** PUBLIC DATA STRUCTURES *** |
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*****************************/ |
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extern LinkPhase lcp_phase[NUM_PPP]; /* Phase of link session (RFC 1661) */ |
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extern lcp_options lcp_wantoptions[]; |
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extern lcp_options lcp_gotoptions[]; |
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extern lcp_options lcp_allowoptions[]; |
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extern lcp_options lcp_hisoptions[]; |
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extern ext_accm xmit_accm[]; |
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/*********************** |
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*** PUBLIC FUNCTIONS *** |
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***********************/ |
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void lcp_init (int); |
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void lcp_open (int); |
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void lcp_close (int, char *); |
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void lcp_lowerup (int); |
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void lcp_lowerdown (int); |
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void lcp_sprotrej (int, u_char *, int); /* send protocol reject */ |
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extern struct protent lcp_protent; |
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/* Default number of times we receive our magic number from the peer |
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before deciding the link is looped-back. */ |
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#define DEFLOOPBACKFAIL 10 |
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#endif /* LCP_H */ |
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