1/* 2 * Layer Two Tunnelling Protocol Daemon 3 * Copyright (C) 1998 Adtran, Inc. 4 * Copyright (C) 2002 Jeff McAdams 5 * 6 * Mark Spencer 7 * 8 * This software is distributed under the terms 9 * of the GPL, which you should have received 10 * along with this source. 11 * 12 * Misc stuff... 13 */ 14 15#ifndef _MISC_H 16#define _MISC_H 17 18struct tunnel; 19struct buffer 20{ 21 int type; 22 void *rstart; 23 void *rend; 24 void *start; 25 int len; 26 int maxlen; 27#if 0 28 unsigned int addr; 29 int port; 30#else 31 struct sockaddr_in peer; 32#endif 33 struct tunnel *tunnel; /* Who owns this packet, if it's a control */ 34 int retries; /* Again, if a control packet, how many retries? */ 35}; 36 37struct ppp_opts 38{ 39 char option[MAXSTRLEN]; 40 struct ppp_opts *next; 41}; 42 43#define IPADDY(a) inet_ntoa(*((struct in_addr *)&(a))) 44 45#define DEBUG c ? c->debug || t->debug : t->debug 46 47#ifdef USE_SWAPS_INSTEAD 48#define SWAPS(a) ((((a) & 0xFF) << 8 ) | (((a) >> 8) & 0xFF)) 49#ifdef htons 50#undef htons 51#endif 52#ifdef ntohs 53#undef htons 54#endif 55#define htons(a) SWAPS(a) 56#define ntohs(a) SWAPS(a) 57#endif 58 59#define LOG_DEBUG 7 60#define LOG_LOG 6 61#define LOG_WARN 4 62#define LOG_CRIT 2 63 64#define halt() printf("Halted.\n") ; for(;;) 65 66extern char hostname[]; 67extern void log (int level, const char *fmt, ...); 68extern struct buffer *new_buf (int); 69extern void udppush_handler (int); 70extern int addfcs (struct buffer *buf); 71extern inline void swaps (void *, int); 72extern void do_packet_dump (struct buffer *); 73extern void status (const char *fmt, ...); 74extern void status_handler (int signal); 75extern int getPtyMaster (char *a, char *b); 76extern void do_control (char *cmd); 77extern void recycle_buf (struct buffer *); 78extern void safe_copy (char *, char *, int); 79extern void opt_destroy (struct ppp_opts *); 80extern struct ppp_opts *add_opt (struct ppp_opts *, char *, ...); 81#endif 82