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129 lines
4.0 KiB
129 lines
4.0 KiB
/* This software was written by Dirk Engling <erdgeist@erdgeist.org> |
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It is considered beerware. Prost. Skol. Cheers or whatever. |
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$id$ */ |
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#ifndef __OT_TRACKERLOGIC_H__ |
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#define __OT_TRACKERLOGIC_H__ |
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#include <sys/types.h> |
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#include <sys/time.h> |
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#include <time.h> |
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#include <stdint.h> |
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/* Libowfat */ |
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#include <uint16.h> |
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#include <uint32.h> |
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#define READ16(addr,offs) ((int16_t)uint16_read((offs)+(uint8_t*)(addr))) |
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#define READ32(addr,offs) ((int32_t)uint32_read((offs)+(uint8_t*)(addr))) |
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#define WRITE16(addr,offs,val) uint16_pack((offs)+(uint8_t*)(addr),(val)) |
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#define WRITE32(addr,offs,val) uint32_pack((offs)+(uint8_t*)(addr),(val)) |
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typedef uint8_t ot_hash[20]; |
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typedef time_t ot_time; |
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/* Some tracker behaviour tunable */ |
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#define OT_CLIENT_TIMEOUT 30 |
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#define OT_CLIENT_TIMEOUT_CHECKINTERVAL 10 |
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#define OT_CLIENT_TIMEOUT_SEND (60*15) |
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#define OT_CLIENT_REQUEST_INTERVAL (60*30) |
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#define OT_CLIENT_REQUEST_VARIATION (60*6) |
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#define OT_TORRENT_TIMEOUT_HOURS 24 |
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#define OT_TORRENT_TIMEOUT (60*OT_TORRENT_TIMEOUT_HOURS) |
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#define OT_CLIENT_REQUEST_INTERVAL_RANDOM ( OT_CLIENT_REQUEST_INTERVAL - OT_CLIENT_REQUEST_VARIATION/2 + (int)( random( ) % OT_CLIENT_REQUEST_VARIATION ) ) |
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/* If peers come back before 10 minutes, don't live sync them */ |
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#define OT_CLIENT_SYNC_RENEW_BOUNDARY 10 |
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/* Number of tracker admin ip addresses allowed */ |
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#define OT_ADMINIP_MAX 64 |
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#define OT_MAX_THREADS 16 |
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#define OT_PEER_TIMEOUT 45 |
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/* We maintain a list of 1024 pointers to sorted list of ot_torrent structs |
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Sort key is, of course, its hash */ |
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#define OT_BUCKET_COUNT_BITS 10 |
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#define OT_BUCKET_COUNT (1<<OT_BUCKET_COUNT_BITS) |
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#define OT_BUCKET_COUNT_SHIFT (32-OT_BUCKET_COUNT_BITS) |
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/* From opentracker.c */ |
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extern time_t g_now_seconds; |
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extern volatile int g_opentracker_running; |
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#define g_now_minutes (g_now_seconds/60) |
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extern uint32_t g_tracker_id; |
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typedef enum { FLAG_TCP, FLAG_UDP, FLAG_MCA } PROTO_FLAG; |
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typedef struct { |
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uint8_t data[8]; |
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} ot_peer; |
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static const uint8_t PEER_FLAG_SEEDING = 0x80; |
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static const uint8_t PEER_FLAG_COMPLETED = 0x40; |
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static const uint8_t PEER_FLAG_STOPPED = 0x20; |
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static const uint8_t PEER_FLAG_FROM_SYNC = 0x10; |
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static const uint8_t PEER_FLAG_LEECHING = 0x00; |
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#define OT_SETIP(peer,ip) WRITE32((peer),0,READ32((ip),0)) |
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#define OT_SETPORT(peer,port) WRITE16((peer),4,READ16((port),0)) |
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#define OT_PEERFLAG(peer) (((uint8_t*)(peer))[6]) |
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#define OT_PEERTIME(peer) (((uint8_t*)(peer))[7]) |
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#define OT_PEER_COMPARE_SIZE ((size_t)6) |
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#define OT_HASH_COMPARE_SIZE (sizeof(ot_hash)) |
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struct ot_peerlist; |
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typedef struct ot_peerlist ot_peerlist; |
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typedef struct { |
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ot_hash hash; |
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ot_peerlist *peer_list; |
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} ot_torrent; |
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#include "ot_vector.h" |
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struct ot_peerlist { |
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ot_time base; |
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size_t seed_count; |
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size_t peer_count; |
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size_t down_count; |
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/* normal peers vector or |
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pointer to ot_vector[32] buckets if data != NULL and space == 0 |
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*/ |
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ot_vector peers; |
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}; |
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#define OT_PEERLIST_HASBUCKETS(peer_list) ((peer_list) && ((peer_list)->peers.size > (peer_list)->peers.space)) |
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/* |
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Exported functions |
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*/ |
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#ifdef WANT_SYNC_LIVE |
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#define WANT_SYNC |
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#endif |
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#ifdef WANT_SYNC |
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#define WANT_SYNC_PARAM( param ) , param |
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#else |
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#define WANT_SYNC_PARAM( param ) |
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#endif |
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int trackerlogic_init( const char * const serverdir ); |
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void trackerlogic_deinit( void ); |
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void exerr( char * message ); |
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/* add_peer_to_torrent does only release the torrent bucket if from_sync is set, |
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otherwise it is released in return_peers_for_torrent */ |
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size_t return_peers_for_torrent( ot_torrent *torrent, size_t amount, char *reply, PROTO_FLAG proto ); |
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ot_torrent *add_peer_to_torrent( ot_hash *hash, ot_peer *peer WANT_SYNC_PARAM( int from_sync ) ); |
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size_t remove_peer_from_torrent( ot_hash *hash, ot_peer *peer, char *reply, PROTO_FLAG proto ); |
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size_t return_tcp_scrape_for_torrent( ot_hash *hash, int amount, char *reply ); |
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size_t return_udp_scrape_for_torrent( ot_hash *hash, char *reply ); |
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/* Helper, before it moves to its own object */ |
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void free_peerlist( ot_peerlist *peer_list ); |
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#endif
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