mirror of
https://github.com/wangyu-/UDPspeeder.git
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109 lines
2.7 KiB
C
109 lines
2.7 KiB
C
/*
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* connection.h
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*
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* Created on: Sep 23, 2017
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* Author: root
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*/
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#ifndef CONNECTION_H_
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#define CONNECTION_H_
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extern int disable_anti_replay;
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#include "connection.h"
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#include "common.h"
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#include "log.h"
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#include "delay_manager.h"
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#include "fd_manager.h"
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/*
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struct anti_replay_t //its for anti replay attack,similar to openvpn/ipsec 's anti replay window
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{
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u64_t max_packet_received;
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char window[anti_replay_window_size];
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anti_replay_seq_t anti_replay_seq;
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anti_replay_seq_t get_new_seq_for_send();
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anti_replay_t();
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void re_init();
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int is_vaild(u64_t seq);
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};//anti_replay;
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*/
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struct conv_manager_t // manage the udp connections
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{
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//typedef hash_map map;
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unordered_map<u64_t,u32_t> u64_to_conv; //conv and u64 are both supposed to be uniq
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unordered_map<u32_t,u64_t> conv_to_u64;
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unordered_map<u32_t,u64_t> conv_last_active_time;
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unordered_map<u32_t,u64_t>::iterator clear_it;
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unordered_map<u32_t,u64_t>::iterator it;
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unordered_map<u32_t,u64_t>::iterator old_it;
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//void (*clear_function)(uint64_t u64) ;
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long long last_clear_time;
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conv_manager_t();
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~conv_manager_t();
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int get_size();
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void reserve();
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void clear();
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u32_t get_new_conv();
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int is_conv_used(u32_t conv);
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int is_u64_used(u64_t u64);
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u32_t find_conv_by_u64(u64_t u64);
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u64_t find_u64_by_conv(u32_t conv);
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int update_active_time(u32_t conv);
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int insert_conv(u32_t conv,u64_t u64);
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int erase_conv(u32_t conv);
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int clear_inactive(char * ip_port=0);
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int clear_inactive0(char * ip_port);
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};//g_conv_manager;
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struct conn_info_t //stores info for a raw connection.for client ,there is only one connection,for server there can be thousand of connection since server can
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//handle multiple clients
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{
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conv_manager_t conv_manager;
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//anti_replay_t anti_replay;
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fd64_t timer_fd;
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ip_port_t ip_port;
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};//g_conn_info;
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struct conn_manager_t //manager for connections. for client,we dont need conn_manager since there is only one connection.for server we use one conn_manager for all connections
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{
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u32_t ready_num;
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unordered_map<fd64_t,u64_t> fd64_mp;
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unordered_map<u64_t,conn_info_t*> mp;//<ip,port> to conn_info_t;
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//put it at end so that it de-consturcts first
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unordered_map<u64_t,conn_info_t*>::iterator clear_it;
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long long last_clear_time;
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conn_manager_t();
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int exist_ip_port(ip_port_t);
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conn_info_t *& find_insert_p(ip_port_t); //be aware,the adress may change after rehash
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conn_info_t & find_insert(ip_port_t) ; //be aware,the adress may change after rehash
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int exist_fd64(fd64_t fd64);
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void insert_fd64(fd64_t fd64,ip_port_t);
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ip_port_t find_by_fd64(fd64_t fd64);
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int erase(unordered_map<u64_t,conn_info_t*>::iterator erase_it);
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int clear_inactive();
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int clear_inactive0();
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};
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extern conn_manager_t conn_manager;
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#endif /* CONNECTION_H_ */
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