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tried to let server handle multiple handshake,failed

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wangyu 2017-07-26 22:58:22 +08:00 committed by wangyu
parent 0a7d1a99a8
commit 1695879605
1 changed files with 108 additions and 31 deletions
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139
main.cpp
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@ -97,6 +97,7 @@ uint32_t conv_num=0;
uint32_t link_level_header_len=0;//set it to 14 if SOCK_RAW is used in socket(PF_PACKET, SOCK_RAW, htons(ETH_P_IP));
const int handshake_timeout=2000;
const int server_handshake_timeout=10000;
const int heartbeat_timeout=10000;
const int udp_timeout=3000;
@ -2310,7 +2311,65 @@ int keep_connection_client() //for client
return 0;
}
struct conn_info_t
{
server_current_state_t current_stat;
packet_info_t recv_packet_info;
packet_info_t send_packet_info;
long long last_state_time;
id_t my_id;
conn_info_t()
{
current_stat=server_nothing;
last_state_time=0;
}
};
struct conn_manager_t
{
unordered_map<uint64_t,conn_info_t> mp;
conn_manager_t()
{
mp.reserve(10007);
}
int exist(uint32_t ip,uint16_t port)
{
uint64_t u64=0;
u64=ip;
u64<<=32u;
u64|=port;
if(mp.find(u64)!=mp.end())
{
return 1;
}
return 0;
}
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(uint32_t ip,uint16_t port) //be aware,the adress may change after rehash
{
uint64_t u64=0;
u64=ip;
u64<<=32u;
u64|=port;
return mp[u64];
}
}conn_manager;
int keep_connection_server_multi()
{
//current_time_rough=get_current_time();
//conv_manager.clean_inactive();
}
int keep_connection_server()
{
current_time_rough=get_current_time();
@ -2606,16 +2665,34 @@ int client_on_raw_recv(packet_info_t &info)
}
return 0;
}
int server_on_raw_recv(packet_info_t &info)
int server_on_raw_recv_multi()
{
char* data;int data_len;
packet_info_t recv_info;
if(recv_bare(recv_info,data,data_len)!=0)
{
return -1;
}
uint32_t ip=recv_info.src_ip;
uint16_t port=recv_info.src_port;
conn_info_t & conn_info=conn_manager.find(ip,port);
packet_info_t &send_info=conn_info.send_packet_info;
server_current_state_t &server_current_state=conn_info.current_stat;
int retry_counter;
}
int server_on_raw_recv(packet_info_t &recv_info,packet_info_t &send_info)
{
char* data;int data_len;
//packet_info_t send_info;
if(server_current_state==server_nothing)
{
if(recv_bare(info,data,data_len)!=0)
if(recv_bare(recv_info,data,data_len)!=0)
{
return -1;
}
@ -2624,30 +2701,30 @@ int server_on_raw_recv(packet_info_t &info)
if(raw_mode==mode_icmp)
{
g_packet_info_send.src_port = info.src_port;;
send_info.src_port = recv_info.src_port;;
}
g_packet_info_send.src_ip=info.dst_ip;
g_packet_info_send.src_port=info.dst_port;
send_info.src_ip=recv_info.dst_ip;
send_info.src_port=recv_info.dst_port;
g_packet_info_send.dst_port = info.src_port;
g_packet_info_send.dst_ip = info.src_ip;
send_info.dst_port = recv_info.src_port;
send_info.dst_ip = recv_info.src_ip;
if(raw_mode==mode_faketcp)
{
if (!(info.syn == 1 && info.ack == 0 && data_len == 0))
if (!(recv_info.syn == 1 && recv_info.ack == 0 && data_len == 0))
return 0;
g_packet_info_send.ack_seq = info.seq + 1;
send_info.ack_seq = recv_info.seq + 1;
g_packet_info_send.psh = 0;
g_packet_info_send.syn = 1;
g_packet_info_send.ack = 1;
send_info.psh = 0;
send_info.syn = 1;
send_info.ack = 1;
g_packet_info_send.seq = get_true_random_number_nz(); //not necessary to set
send_info.seq = get_true_random_number_nz(); //not necessary to set
mylog(log_info,"sent syn ack\n");
send_bare(g_packet_info_send, 0, 0); //////////////send
send_bare(send_info, 0, 0); //////////////send
mylog(log_info,"changed state to server_syn_ack_sent\n");
@ -2671,7 +2748,7 @@ int server_on_raw_recv(packet_info_t &info)
mylog(log_info,"sent half heart_beat\n");
//send_raw(g_packet_info_send, 0, 0);
send_handshake(g_packet_info_send,my_id,random(),const_id); //////////////send
send_handshake(send_info,my_id,random(),const_id); //////////////send
mylog(log_info,"changed state to server_heartbeat_sent_sent\n");
@ -2682,23 +2759,23 @@ int server_on_raw_recv(packet_info_t &info)
}
else if(server_current_state==server_syn_ack_sent)
{
if(recv_bare(info,data,data_len)!=0)
if(recv_bare(recv_info,data,data_len)!=0)
{
return -1;
}
if(raw_mode==mode_faketcp&&!( info.syn==0&&info.ack==1 &&data_len==0)) return 0;
if(info.src_ip!=g_packet_info_send.dst_ip||info.src_port!=g_packet_info_send.dst_port)
if(raw_mode==mode_faketcp&&!( recv_info.syn==0&&recv_info.ack==1 &&data_len==0)) return 0;
if(recv_info.src_ip!=send_info.dst_ip||recv_info.src_port!=send_info.dst_port)
{
mylog(log_debug,"unexpected adress\n");
return 0;
}
g_packet_info_send.syn=0;
g_packet_info_send.ack=1;
g_packet_info_send.seq+=1;////////is this right?
send_info.syn=0;
send_info.ack=1;
send_info.seq+=1;////////is this right?
send_handshake(g_packet_info_send,my_id,0,const_id); //////////////send
send_handshake(send_info,my_id,0,const_id); //////////////send
mylog(log_info,"changed state to server_handshake_sent\n");
@ -2710,14 +2787,14 @@ int server_on_raw_recv(packet_info_t &info)
}
else if(server_current_state==server_handshake_sent)//heart beat received
{
if(recv_bare(info,data,data_len)!=0)
if(recv_bare(recv_info,data,data_len)!=0)
{
return -1;
}
if(( raw_mode==mode_faketcp&& (info.syn==1||info.ack!=1)) ||data_len==0) return 0;
if(( raw_mode==mode_faketcp&& (recv_info.syn==1||recv_info.ack!=1)) ||data_len==0) return 0;
if(info.src_ip!=g_packet_info_send.dst_ip||info.src_port!=g_packet_info_send.dst_port)
if(recv_info.src_ip!=send_info.dst_ip||recv_info.src_port!=send_info.dst_port)
{
mylog(log_trace,"unexpected adress\n");
return 0;
@ -2752,7 +2829,7 @@ int server_on_raw_recv(packet_info_t &info)
mylog(log_info,"received heartbeat %x %x\n",oppsite_id,tmp_session_id);
send_safer(g_packet_info_send,(char *)"h",1);/////////////send
send_safer(send_info,(char *)"h",1);/////////////send
//send_hb(g_packet_info_send,my_id,oppsite_id,const_id);/////////////////send
@ -2767,13 +2844,13 @@ int server_on_raw_recv(packet_info_t &info)
}
else if(server_current_state==server_ready)
{
if(recv_safer(info,data,data_len)!=0)
if(recv_safer(recv_info,data,data_len)!=0)
{
return -1;
}
if( (raw_mode==mode_faketcp&&(info.syn==1||info.ack!=1)) ||data_len==0) return 0;
if(info.src_ip!=g_packet_info_send.dst_ip||info.src_port!=g_packet_info_send.dst_port)
if( (raw_mode==mode_faketcp&&(recv_info.syn==1||recv_info.ack!=1)) ||data_len==0) return 0;
if(recv_info.src_ip!=send_info.dst_ip||recv_info.src_port!=send_info.dst_port)
{
mylog(log_debug,"unexpected adress\n");
return 0;
@ -3212,7 +3289,7 @@ int server_event_loop()
if (events[n].data.u64 == epoll_raw_recv_fd_sn)
{
iphdr *iph;tcphdr *tcph;
server_on_raw_recv(g_packet_info_recv);
server_on_raw_recv(g_packet_info_recv,g_packet_info_send);
}
}