| /***************************************************************************** |
| * 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 */ |
