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110 lines
3.4 KiB
110 lines
3.4 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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#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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/* Should be called BYTE, WORD, DWORD - but some OSs already have that and there's no #iftypedef */ |
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/* They mark memory used as data instead of integer or human readable string - |
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they should be cast before used as integer/text */ |
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typedef uint8_t ot_byte; |
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typedef uint16_t ot_word; |
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typedef uint32_t ot_dword; |
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typedef ot_byte 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*60*OT_TORRENT_TIMEOUT_HOURS)/OT_POOLS_TIMEOUT) |
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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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/* 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 1024 |
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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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/* This list points to 9 pools of peers each grouped in five-minute-intervals |
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thus achieving a timeout of 2700s or 45 minutes |
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These pools are sorted by its binary content */ |
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#define OT_POOLS_COUNT 9 |
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#define OT_POOLS_TIMEOUT (60*5) |
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/* From opentracker.c */ |
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extern time_t ot_start_time; |
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extern time_t g_now; |
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#define NOW (g_now/OT_POOLS_TIMEOUT) |
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typedef struct { |
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ot_byte data[8]; |
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} ot_peer; |
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static const ot_byte PEER_FLAG_SEEDING = 0x80; |
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static const ot_byte PEER_FLAG_COMPLETED = 0x40; |
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static const ot_byte PEER_FLAG_STOPPED = 0x20; |
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#define OT_SETIP( peer, ip ) memmove((peer),(ip),4); |
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#define OT_SETPORT( peer, port ) memmove(((ot_byte*)peer)+4,(port),2); |
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#define OT_FLAG(peer) (((ot_byte*)(peer))[6]) |
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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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size_t seed_counts[ OT_POOLS_COUNT ]; |
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ot_vector peers[ OT_POOLS_COUNT ]; |
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#ifdef WANT_TRACKER_SYNC |
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ot_vector changeset; |
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#endif |
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}; |
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/* |
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Exported functions |
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*/ |
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#ifdef WANT_TRACKER_SYNC |
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#define WANT_TRACKER_SYNC_PARAM( param ) , param |
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#else |
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#define WANT_TRACKER_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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ot_torrent *add_peer_to_torrent( ot_hash *hash, ot_peer *peer WANT_TRACKER_SYNC_PARAM( int from_changeset ) ); |
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size_t remove_peer_from_torrent( ot_hash *hash, ot_peer *peer, char *reply, int is_tcp ); |
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size_t return_peers_for_torrent( ot_hash *hash, size_t amount, char *reply, int is_tcp ); |
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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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