| 1 | /* |
| 2 | * ppp.h - PPP global declarations. |
| 3 | * |
| 4 | * Copyright (c) 1989 Carnegie Mellon University. |
| 5 | * All rights reserved. |
| 6 | * |
| 7 | * Redistribution and use in source and binary forms are permitted |
| 8 | * provided that the above copyright notice and this paragraph are |
| 9 | * duplicated in all such forms and that any documentation, |
| 10 | * advertising materials, and other materials related to such |
| 11 | * distribution and use acknowledge that the software was developed |
| 12 | * by Carnegie Mellon University. The name of the |
| 13 | * University may not be used to endorse or promote products derived |
| 14 | * from this software without specific prior written permission. |
| 15 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR |
| 16 | * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED |
| 17 | * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. |
| 18 | */ |
| 19 | |
| 20 | #ifndef __PPP_H__ |
| 21 | #define __PPP_H__ |
| 22 | |
| 23 | #define NPPP 1 /* One PPP interface supported (per process) */ |
| 24 | |
| 25 | /* |
| 26 | * Data Link Layer header = Address, Control, Protocol. |
| 27 | */ |
| 28 | #define ALLSTATIONS 0xff /* All-Stations Address */ |
| 29 | #define UI 0x03 /* Unnumbered Information */ |
| 30 | #define LCP 0xc021 /* Link Control Protocol */ |
| 31 | #define IPCP 0x8021 /* IP Control Protocol */ |
| 32 | #define UPAP 0xc023 /* User/Password Authentication Protocol */ |
| 33 | #define CHAP 0xc223 /* Crytpographic Handshake Protocol */ |
| 34 | #define IP_VJ_COMP 0x002d /* VJ TCP compressed IP packet */ |
| 35 | #define DLLHEADERLEN (sizeof (u_char) + sizeof (u_char) + sizeof (u_short)) |
| 36 | #define MTU 1500 /* Default MTU */ |
| 37 | |
| 38 | #endif /* __PPP_H__ */ |