qtsoundmodem/digipeater.h

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2023-09-12 21:38:15 +01:00
#ifndef DIGIPEATER_H
#define DIGIPEATER_H 1
#include "regex.h"
#include "direwolf.h" /* for MAX_CHANS */
#include "ax25_pad.h" /* for packet_t */
#include "audio.h" /* for radio channel properties */
/*
* Information required for digipeating.
*
* The configuration file reader fills in this information
* and it is passed to digipeater_init at application start up time.
*/
struct digi_config_s {
int dedupe_time; /* Don't digipeat duplicate packets */
/* within this number of seconds. */
#define DEFAULT_DEDUPE 30
/*
* Rules for each of the [from_chan][to_chan] combinations.
*/
regex_t alias[MAX_CHANS][MAX_CHANS];
regex_t wide[MAX_CHANS][MAX_CHANS];
int enabled[MAX_CHANS][MAX_CHANS];
enum preempt_e { PREEMPT_OFF, PREEMPT_DROP, PREEMPT_MARK, PREEMPT_TRACE } preempt[MAX_CHANS][MAX_CHANS];
// ATGP is an ugly hack for the specific need of ATGP which needs more that 8 digipeaters.
// DO NOT put this in the User Guide. On a need to know basis.
char atgp[MAX_CHANS][MAX_CHANS][AX25_MAX_ADDR_LEN];
char *filter_str[MAX_CHANS+1][MAX_CHANS+1];
// NULL or optional Packet Filter strings such as "t/m".
// Notice the size of arrays is one larger than normal.
// That extra position is for the IGate.
int regen[MAX_CHANS][MAX_CHANS]; // Regenerate packet.
// Sort of like digipeating but passed along unchanged.
};
/*
* Call once at application start up time.
*/
extern void digipeater_init (struct audio_s *p_audio_config, struct digi_config_s *p_digi_config);
/*
* Call this for each packet received.
* Suitable packets will be queued for transmission.
*/
extern void digipeater (int from_chan, packet_t pp);
void digi_regen (int from_chan, packet_t pp);
/* Make statistics available. */
int digipeater_get_count (int from_chan, int to_chan);
#endif
/* end digipeater.h */