mirror of
https://github.com/wangyu-/udp2raw.git
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fix indent with clang-format
This commit is contained in:
yancey
510
connection.h
510
connection.h
@@ -16,336 +16,298 @@ extern int disable_anti_replay;
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#include "network.h"
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#include "misc.h"
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const int disable_conv_clear=0;//a udp connection in the multiplexer is called conversation in this program,conv for short.
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const int disable_conv_clear = 0; // a udp connection in the multiplexer is called conversation in this program,conv for short.
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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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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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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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int is_vaild(u64_t seq);
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}; // anti_replay;
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void server_clear_function(u64_t u64);
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#include <type_traits>
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template <class T>
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template <class T>
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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<T,u32_t> data_to_conv; //conv and u64 are both supposed to be uniq
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unordered_map<u32_t,T> conv_to_data;
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// typedef hash_map map;
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unordered_map<T, u32_t> data_to_conv; // conv and u64 are both supposed to be uniq
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unordered_map<u32_t, T> conv_to_data;
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lru_collector_t<u32_t> lru;
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//unordered_map<u32_t,u64_t> conv_last_active_time;
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lru_collector_t<u32_t> lru;
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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 clear_it;
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void (*additional_clear_function)(T data) =0;
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void (*additional_clear_function)(T data) = 0;
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long long last_clear_time;
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long long last_clear_time;
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conv_manager_t()
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{
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//clear_it=conv_last_active_time.begin();
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long long last_clear_time=0;
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additional_clear_function=0;
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}
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~conv_manager_t()
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{
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clear();
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}
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int get_size()
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{
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return conv_to_data.size();
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}
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void reserve()
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{
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data_to_conv.reserve(10007);
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conv_to_data.reserve(10007);
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//conv_last_active_time.reserve(10007);
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conv_manager_t() {
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// clear_it=conv_last_active_time.begin();
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long long last_clear_time = 0;
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additional_clear_function = 0;
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}
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~conv_manager_t() {
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clear();
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}
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int get_size() {
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return conv_to_data.size();
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}
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void reserve() {
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data_to_conv.reserve(10007);
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conv_to_data.reserve(10007);
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// conv_last_active_time.reserve(10007);
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lru.mp.reserve(10007);
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}
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void clear()
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{
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if(disable_conv_clear) return ;
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lru.mp.reserve(10007);
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}
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void clear() {
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if (disable_conv_clear) return;
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if(additional_clear_function!=0)
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{
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for(auto it=conv_to_data.begin();it!=conv_to_data.end();it++)
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{
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//int fd=int((it->second<<32u)>>32u);
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additional_clear_function( it->second);
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}
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}
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data_to_conv.clear();
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conv_to_data.clear();
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if (additional_clear_function != 0) {
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for (auto it = conv_to_data.begin(); it != conv_to_data.end(); it++) {
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// int fd=int((it->second<<32u)>>32u);
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additional_clear_function(it->second);
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}
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}
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data_to_conv.clear();
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conv_to_data.clear();
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lru.clear();
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//conv_last_active_time.clear();
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lru.clear();
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// conv_last_active_time.clear();
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//clear_it=conv_last_active_time.begin();
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// clear_it=conv_last_active_time.begin();
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}
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u32_t get_new_conv() {
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u32_t conv = get_true_random_number_nz();
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while (conv_to_data.find(conv) != conv_to_data.end()) {
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conv = get_true_random_number_nz();
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}
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return conv;
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}
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int is_conv_used(u32_t conv) {
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return conv_to_data.find(conv) != conv_to_data.end();
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}
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int is_data_used(T data) {
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return data_to_conv.find(data) != data_to_conv.end();
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}
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u32_t find_conv_by_data(T data) {
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return data_to_conv[data];
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}
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T find_data_by_conv(u32_t conv) {
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return conv_to_data[conv];
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}
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int update_active_time(u32_t conv) {
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// return conv_last_active_time[conv]=get_current_time();
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lru.update(conv);
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return 0;
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}
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int insert_conv(u32_t conv, T data) {
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data_to_conv[data] = conv;
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conv_to_data[conv] = data;
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// conv_last_active_time[conv]=get_current_time();
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lru.new_key(conv);
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return 0;
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}
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int erase_conv(u32_t conv) {
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if (disable_conv_clear) return 0;
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T data = conv_to_data[conv];
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if (additional_clear_function != 0) {
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additional_clear_function(data);
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}
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conv_to_data.erase(conv);
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data_to_conv.erase(data);
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// conv_last_active_time.erase(conv);
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lru.erase(conv);
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return 0;
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}
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int clear_inactive(char *info = 0) {
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if (get_current_time() - last_clear_time > conv_clear_interval) {
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last_clear_time = get_current_time();
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return clear_inactive0(info);
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}
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return 0;
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}
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int clear_inactive0(char *info) {
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if (disable_conv_clear) return 0;
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}
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u32_t get_new_conv()
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{
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u32_t conv=get_true_random_number_nz();
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while(conv_to_data.find(conv)!=conv_to_data.end())
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{
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conv=get_true_random_number_nz();
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}
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return conv;
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}
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int is_conv_used(u32_t conv)
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{
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return conv_to_data.find(conv)!=conv_to_data.end();
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}
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int is_data_used(T data)
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{
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return data_to_conv.find(data)!=data_to_conv.end();
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}
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u32_t find_conv_by_data(T data)
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{
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return data_to_conv[data];
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}
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T find_data_by_conv(u32_t conv)
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{
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return conv_to_data[conv];
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}
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int update_active_time(u32_t conv)
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{
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//return conv_last_active_time[conv]=get_current_time();
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lru.update(conv);
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return 0;
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}
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int insert_conv(u32_t conv,T data)
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{
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data_to_conv[data]=conv;
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conv_to_data[conv]=data;
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//conv_last_active_time[conv]=get_current_time();
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lru.new_key(conv);
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return 0;
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}
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int erase_conv(u32_t conv)
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{
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if(disable_conv_clear) return 0;
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T data=conv_to_data[conv];
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if(additional_clear_function!=0)
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{
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additional_clear_function(data);
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}
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conv_to_data.erase(conv);
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data_to_conv.erase(data);
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//conv_last_active_time.erase(conv);
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lru.erase(conv);
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return 0;
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}
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int clear_inactive(char * info=0)
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{
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if(get_current_time()-last_clear_time>conv_clear_interval)
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{
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last_clear_time=get_current_time();
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return clear_inactive0(info);
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}
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return 0;
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}
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int clear_inactive0(char * info)
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{
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if(disable_conv_clear) return 0;
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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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// map<uint32_t,uint64_t>::iterator it;
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int cnt = 0;
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// it=clear_it;
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int size = lru.size();
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int num_to_clean = size / conv_clear_ratio + conv_clear_min; // clear 1/10 each time,to avoid latency glitch
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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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num_to_clean = min(num_to_clean, size);
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//map<uint32_t,uint64_t>::iterator it;
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int cnt=0;
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//it=clear_it;
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int size=lru.size();
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int num_to_clean=size/conv_clear_ratio+conv_clear_min; //clear 1/10 each time,to avoid latency glitch
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my_time_t current_time = get_current_time();
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for (;;) {
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if (cnt >= num_to_clean) break;
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if (lru.empty()) break;
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num_to_clean=min(num_to_clean,size);
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u32_t conv;
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my_time_t ts = lru.peek_back(conv);
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my_time_t current_time=get_current_time();
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for(;;)
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{
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if(cnt>=num_to_clean) break;
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if(lru.empty()) break;
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if (current_time - ts < conv_timeout) break;
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u32_t conv;
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my_time_t ts=lru.peek_back(conv);
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erase_conv(conv);
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if (info == 0) {
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mylog(log_info, "conv %x cleared\n", conv);
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} else {
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mylog(log_info, "[%s]conv %x cleared\n", info, conv);
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}
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cnt++;
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}
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return 0;
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}
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if(current_time- ts < conv_timeout) break;
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/*
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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(T u64);
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u32_t find_conv_by_u64(T u64);
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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,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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erase_conv(conv);
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if(info==0)
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{
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mylog(log_info,"conv %x cleared\n",conv);
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}
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else
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{
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mylog(log_info,"[%s]conv %x cleared\n",info,conv);
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}
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cnt++;
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}
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return 0;
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}
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/*
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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(T u64);
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u32_t find_conv_by_u64(T u64);
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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,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 blob_t:not_copy_able_t //used in conn_info_t.
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struct blob_t : not_copy_able_t // used in conn_info_t.
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{
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union tmp_union_t//conv_manager_t is here to avoid copying when a connection is recovered
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{
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conv_manager_t<address_t> c;
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conv_manager_t<u64_t> s;
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//avoid templates here and there, avoid pointer and type cast
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tmp_union_t()
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{
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if(program_mode==client_mode)
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{
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new( &c ) conv_manager_t<address_t>();
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}
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else
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{
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assert(program_mode==server_mode);
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new( &s ) conv_manager_t<u64_t>();
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}
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}
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~tmp_union_t()
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{
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if(program_mode==client_mode)
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{
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c.~conv_manager_t<address_t>();
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}
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else
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{
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assert(program_mode==server_mode);
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s.~conv_manager_t<u64_t>();
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}
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}
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}conv_manager;
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union tmp_union_t // conv_manager_t is here to avoid copying when a connection is recovered
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{
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conv_manager_t<address_t> c;
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conv_manager_t<u64_t> s;
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// avoid templates here and there, avoid pointer and type cast
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tmp_union_t() {
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if (program_mode == client_mode) {
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new (&c) conv_manager_t<address_t>();
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} else {
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assert(program_mode == server_mode);
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new (&s) conv_manager_t<u64_t>();
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}
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}
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~tmp_union_t() {
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if (program_mode == client_mode) {
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c.~conv_manager_t<address_t>();
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} else {
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assert(program_mode == server_mode);
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s.~conv_manager_t<u64_t>();
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}
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}
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} conv_manager;
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anti_replay_t anti_replay;//anti_replay_t is here bc its huge,its allocation is delayed.
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anti_replay_t anti_replay; // anti_replay_t is here bc its huge,its allocation is delayed.
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};
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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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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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current_state_t state;
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current_state_t state;
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raw_info_t raw_info;
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u64_t last_state_time;
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u64_t last_hb_sent_time; //client re-use this for retry
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u64_t last_hb_recv_time;
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//long long last_resent_time;
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raw_info_t raw_info;
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u64_t last_state_time;
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u64_t last_hb_sent_time; // client re-use this for retry
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u64_t last_hb_recv_time;
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// long long last_resent_time;
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my_id_t my_id;
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my_id_t oppsite_id;
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my_id_t my_id;
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my_id_t oppsite_id;
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fd64_t timer_fd64;
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fd64_t udp_fd64;
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fd64_t timer_fd64;
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fd64_t udp_fd64;
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my_id_t oppsite_const_id;
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my_id_t oppsite_const_id;
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blob_t *blob;
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blob_t *blob;
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uint8_t my_roller;
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uint8_t oppsite_roller;
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u64_t last_oppsite_roller_time;
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uint8_t my_roller;
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uint8_t oppsite_roller;
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u64_t last_oppsite_roller_time;
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// ip_port_t ip_port;
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// ip_port_t ip_port;
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/*
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const uint32_t &ip=raw_info.recv_info.src_ip;
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const uint16_t &port=raw_info.recv_info.src_port;
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/*
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const uint32_t &ip=raw_info.recv_info.src_ip;
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const uint16_t &port=raw_info.recv_info.src_port;
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*/
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void recover(const conn_info_t &conn_info);
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void re_init();
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conn_info_t();
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void prepare();
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conn_info_t(const conn_info_t &b);
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||||
conn_info_t &operator=(const conn_info_t &b);
|
||||
~conn_info_t();
|
||||
}; // g_conn_info;
|
||||
|
||||
*/
|
||||
void recover(const conn_info_t &conn_info);
|
||||
void re_init();
|
||||
conn_info_t();
|
||||
void prepare();
|
||||
conn_info_t(const conn_info_t&b);
|
||||
conn_info_t& operator=(const conn_info_t& b);
|
||||
~conn_info_t();
|
||||
};//g_conn_info;
|
||||
|
||||
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
|
||||
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
|
||||
{
|
||||
u32_t ready_num;
|
||||
|
||||
u32_t ready_num;
|
||||
// unordered_map<int,conn_info_t *> udp_fd_mp; //a bit dirty to used pointer,but can void unordered_map search
|
||||
// unordered_map<int,conn_info_t *> timer_fd_mp;//we can use pointer here since unordered_map.rehash() uses shallow copy
|
||||
|
||||
//unordered_map<int,conn_info_t *> udp_fd_mp; //a bit dirty to used pointer,but can void unordered_map search
|
||||
//unordered_map<int,conn_info_t *> timer_fd_mp;//we can use pointer here since unordered_map.rehash() uses shallow copy
|
||||
unordered_map<my_id_t, conn_info_t *> const_id_mp;
|
||||
|
||||
unordered_map<my_id_t,conn_info_t *> const_id_mp;
|
||||
unordered_map<address_t, conn_info_t *> mp; // put it at end so that it de-consturcts first
|
||||
|
||||
unordered_map<address_t,conn_info_t*> mp; //put it at end so that it de-consturcts first
|
||||
// lru_collector_t<address_t> lru;
|
||||
|
||||
//lru_collector_t<address_t> lru;
|
||||
unordered_map<address_t, conn_info_t *>::iterator clear_it;
|
||||
|
||||
unordered_map<address_t,conn_info_t*>::iterator clear_it;
|
||||
long long last_clear_time;
|
||||
|
||||
long long last_clear_time;
|
||||
|
||||
conn_manager_t();
|
||||
int exist(address_t addr);
|
||||
/*
|
||||
int insert(uint32_t ip,uint16_t port)
|
||||
{
|
||||
uint64_t u64=0;
|
||||
u64=ip;
|
||||
u64<<=32u;
|
||||
u64|=port;
|
||||
mp[u64];
|
||||
return 0;
|
||||
}*/
|
||||
conn_info_t *& find_insert_p(address_t addr); //be aware,the adress may change after rehash //not true?
|
||||
conn_info_t & find_insert(address_t addr) ; //be aware,the adress may change after rehash
|
||||
|
||||
int erase(unordered_map<address_t,conn_info_t*>::iterator erase_it);
|
||||
int clear_inactive();
|
||||
int clear_inactive0();
|
||||
conn_manager_t();
|
||||
int exist(address_t addr);
|
||||
/*
|
||||
int insert(uint32_t ip,uint16_t port)
|
||||
{
|
||||
uint64_t u64=0;
|
||||
u64=ip;
|
||||
u64<<=32u;
|
||||
u64|=port;
|
||||
mp[u64];
|
||||
return 0;
|
||||
}*/
|
||||
conn_info_t *&find_insert_p(address_t addr); // be aware,the adress may change after rehash //not true?
|
||||
conn_info_t &find_insert(address_t addr); // be aware,the adress may change after rehash
|
||||
|
||||
int erase(unordered_map<address_t, conn_info_t *>::iterator erase_it);
|
||||
int clear_inactive();
|
||||
int clear_inactive0();
|
||||
};
|
||||
|
||||
extern conn_manager_t conn_manager;
|
||||
|
||||
void server_clear_function(u64_t u64);
|
||||
|
||||
int send_bare(raw_info_t &raw_info,const char* data,int len);//send function with encryption but no anti replay,this is used when client and server verifys each other
|
||||
//you have to design the protocol carefully, so that you wont be affect by relay attack
|
||||
//int reserved_parse_bare(const char *input,int input_len,char* & data,int & len); // a sub function used in recv_bare
|
||||
int recv_bare(raw_info_t &raw_info,char* & data,int & len);//recv function with encryption but no anti replay,this is used when client and server verifys each other
|
||||
//you have to design the protocol carefully, so that you wont be affect by relay attack
|
||||
int send_handshake(raw_info_t &raw_info,my_id_t id1,my_id_t id2,my_id_t id3);// a warp for send_bare for sending handshake(this is not tcp handshake) easily
|
||||
int send_safer(conn_info_t &conn_info,char type,const char* data,int len); //safer transfer function with anti-replay,when mutually verification is done.
|
||||
int send_data_safer(conn_info_t &conn_info,const char* data,int len,u32_t conv_num);//a wrap for send_safer for transfer data.
|
||||
//int reserved_parse_safer(conn_info_t &conn_info,const char * input,int input_len,char &type,char* &data,int &len);//subfunction for recv_safer,allow overlap
|
||||
int send_bare(raw_info_t &raw_info, const char *data, int len); // send function with encryption but no anti replay,this is used when client and server verifys each other
|
||||
// you have to design the protocol carefully, so that you wont be affect by relay attack
|
||||
// int reserved_parse_bare(const char *input,int input_len,char* & data,int & len); // a sub function used in recv_bare
|
||||
int recv_bare(raw_info_t &raw_info, char *&data, int &len); // recv function with encryption but no anti replay,this is used when client and server verifys each other
|
||||
// you have to design the protocol carefully, so that you wont be affect by relay attack
|
||||
int send_handshake(raw_info_t &raw_info, my_id_t id1, my_id_t id2, my_id_t id3); // a warp for send_bare for sending handshake(this is not tcp handshake) easily
|
||||
int send_safer(conn_info_t &conn_info, char type, const char *data, int len); // safer transfer function with anti-replay,when mutually verification is done.
|
||||
int send_data_safer(conn_info_t &conn_info, const char *data, int len, u32_t conv_num); // a wrap for send_safer for transfer data.
|
||||
// int reserved_parse_safer(conn_info_t &conn_info,const char * input,int input_len,char &type,char* &data,int &len);//subfunction for recv_safer,allow overlap
|
||||
|
||||
//int recv_safer(conn_info_t &conn_info,char &type,char* &data,int &len);///safer transfer function with anti-replay,when mutually verification is done.
|
||||
// int recv_safer(conn_info_t &conn_info,char &type,char* &data,int &len);///safer transfer function with anti-replay,when mutually verification is done.
|
||||
|
||||
int recv_safer_multi(conn_info_t &conn_info,vector<char> &type_arr,vector<string> &data_arr);//new api for handle gro
|
||||
#endif /* CONNECTION_H_ */
|
||||
int recv_safer_multi(conn_info_t &conn_info, vector<char> &type_arr, vector<string> &data_arr); // new api for handle gro
|
||||
#endif /* CONNECTION_H_ */
|
||||
|
||||
Reference in New Issue
Block a user