mirror of
https://github.com/wangyu-/udp2raw.git
synced 2024-06-24 07:59:12 +00:00
refactor
This commit is contained in:
wangyu-
parent
f096a510b5
commit
fc05e7f080
227
common.cpp
227
common.cpp
@ -7,26 +7,10 @@
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#include "common.h"
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#include "log.h"
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#include "misc.h"
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int about_to_exit=0;
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raw_mode_t raw_mode=mode_faketcp;
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unordered_map<int, const char*> raw_mode_tostring = {{mode_faketcp, "faketcp"}, {mode_udp, "udp"}, {mode_icmp, "icmp"}};
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int socket_buf_size=1024*1024;
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int force_socket_buf=0;
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static int random_number_fd=-1;
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string iptables_pattern="";
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int iptables_rule_added=0;
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int iptables_rule_keeped=0;
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int iptables_rule_keep_index=0;
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//int iptables_rule_no_clear=0;
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program_mode_t program_mode=unset_mode;//0 unset; 1client 2server
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u64_t get_current_time()
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{
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@ -58,167 +42,6 @@ char * my_ntoa(u32_t ip)
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return inet_ntoa(a);
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}
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/*
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int add_iptables_rule(const char * s)
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{
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iptables_pattern=s;
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string rule="iptables -I INPUT ";
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rule+=iptables_pattern;
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rule+=" -j DROP";
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char *output;
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if(run_command(rule.c_str(),output)==0)
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{
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mylog(log_warn,"auto added iptables rule by: %s\n",rule.c_str());
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}
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else
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{
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mylog(log_fatal,"auto added iptables failed by: %s\n",rule.c_str());
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//mylog(log_fatal,"reason : %s\n",strerror(errno));
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myexit(-1);
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}
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iptables_rule_added=1;
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return 0;
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}*/
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string chain[2];
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string rule_keep[2];
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string rule_keep_add[2];
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string rule_keep_del[2];
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u64_t keep_rule_last_time=0;
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pthread_t keep_thread;
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int keep_thread_running=0;
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int iptables_gen_add(const char * s,u32_t const_id)
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{
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string dummy="";
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iptables_pattern=s;
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chain[0] =dummy+ "udp2rawDwrW_C";
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rule_keep[0]=dummy+ iptables_pattern+" -j " +chain[0];
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rule_keep_add[0]=dummy+"iptables -I INPUT "+rule_keep[0];
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char *output;
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run_command(dummy+"iptables -N "+chain[0],output,show_none);
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run_command(dummy+"iptables -F "+chain[0],output);
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run_command(dummy+"iptables -I "+chain[0] + " -j DROP",output);
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rule_keep_del[0]=dummy+"iptables -D INPUT "+rule_keep[0];
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run_command(rule_keep_del[0],output,show_none);
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run_command(rule_keep_del[0],output,show_none);
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if(run_command(rule_keep_add[0],output)!=0)
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{
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mylog(log_fatal,"auto added iptables failed by: %s\n",rule_keep_add[0].c_str());
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myexit(-1);
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}
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return 0;
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}
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int iptables_rule_init(const char * s,u32_t const_id,int keep)
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{
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iptables_pattern=s;
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iptables_rule_added=1;
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iptables_rule_keeped=keep;
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string dummy="";
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char const_id_str[100];
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sprintf(const_id_str, "%x", const_id);
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chain[0] =dummy+ "udp2rawDwrW_"+const_id_str+"_C0";
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chain[1] =dummy+ "udp2rawDwrW_"+const_id_str+"_C1";
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rule_keep[0]=dummy+ iptables_pattern+" -j " +chain[0];
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rule_keep[1]=dummy+ iptables_pattern+" -j " +chain[1];
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rule_keep_add[0]=dummy+"iptables -I INPUT "+rule_keep[0];
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rule_keep_add[1]=dummy+"iptables -I INPUT "+rule_keep[1];
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rule_keep_del[0]=dummy+"iptables -D INPUT "+rule_keep[0];
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rule_keep_del[1]=dummy+"iptables -D INPUT "+rule_keep[1];
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keep_rule_last_time=get_current_time();
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char *output;
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for(int i=0;i<=iptables_rule_keeped;i++)
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{
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run_command(dummy+"iptables -N "+chain[i],output);
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run_command(dummy+"iptables -F "+chain[i],output);
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run_command(dummy+"iptables -I "+chain[i] + " -j DROP",output);
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if(run_command(rule_keep_add[i],output)!=0)
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{
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mylog(log_fatal,"auto added iptables failed by: %s\n",rule_keep_add[i].c_str());
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myexit(-1);
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}
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}
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mylog(log_warn,"auto added iptables rules\n");
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return 0;
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}
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int keep_iptables_rule() //magic to work on a machine without grep/iptables --check/-m commment
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{
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/*
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if(iptables_rule_keeped==0) return 0;
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uint64_t tmp_current_time=get_current_time();
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if(tmp_current_time-keep_rule_last_time<=iptables_rule_keep_interval)
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{
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return 0;
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}
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else
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{
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keep_rule_last_time=tmp_current_time;
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}*/
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mylog(log_debug,"keep_iptables_rule begin %llu\n",get_current_time());
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iptables_rule_keep_index+=1;
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iptables_rule_keep_index%=2;
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string dummy="";
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char *output;
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int i=iptables_rule_keep_index;
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run_command(dummy + "iptables -N " + chain[i], output,show_none);
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if (run_command(dummy + "iptables -F " + chain[i], output,show_none) != 0)
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mylog(log_warn, "iptables -F failed %d\n",i);
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if (run_command(dummy + "iptables -I " + chain[i] + " -j DROP",output,show_none) != 0)
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mylog(log_warn, "iptables -I failed %d\n",i);
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if (run_command(rule_keep_del[i], output,show_none) != 0)
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mylog(log_warn, "rule_keep_del failed %d\n",i);
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run_command(rule_keep_del[i], output,show_none); //do it twice,incase it fails for unknown random reason
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if(run_command(rule_keep_add[i], output,show_log)!=0)
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mylog(log_warn, "rule_keep_del failed %d\n",i);
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mylog(log_debug,"keep_iptables_rule end %llu\n",get_current_time());
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return 0;
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}
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int clear_iptables_rule()
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{
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char *output;
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string dummy="";
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if(!iptables_rule_added) return 0;
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for(int i=0;i<=iptables_rule_keeped;i++ )
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{
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run_command(rule_keep_del[i],output);
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run_command(dummy+"iptables -F "+chain[i],output);
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run_command(dummy+"iptables -X "+chain[i],output);
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}
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return 0;
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}
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void init_random_number_fd()
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{
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@ -326,8 +149,7 @@ unsigned short csum(const unsigned short *ptr,int nbytes) {//works both for big
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return(answer);
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}
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int set_buf_size(int fd)
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int set_buf_size(int fd,int socket_buf_size,int force_socket_buf)
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{
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if(force_socket_buf)
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{
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@ -358,30 +180,6 @@ int set_buf_size(int fd)
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return 0;
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}
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void myexit(int a)
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{
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if(enable_log_color)
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printf("%s\n",RESET);
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if(keep_thread_running)
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{
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if(pthread_cancel(keep_thread))
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{
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mylog(log_warn,"pthread_cancel failed\n");
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}
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else
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{
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mylog(log_info,"pthread_cancel success\n");
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}
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}
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clear_iptables_rule();
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exit(a);
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}
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void signal_handler(int sig)
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{
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about_to_exit=1;
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// myexit(0);
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}
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int numbers_to_char(id_t id1,id_t id2,id_t id3,char * &data,int &len)
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{
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static char buf[buf_len];
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@ -399,7 +197,6 @@ int numbers_to_char(id_t id1,id_t id2,id_t id3,char * &data,int &len)
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return 0;
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}
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int char_to_numbers(const char * data,int len,id_t &id1,id_t &id2,id_t &id3)
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{
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if(len<int(sizeof(id_t)*3)) return -1;
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@ -502,6 +299,26 @@ bool larger_than_u16(uint16_t a,uint16_t b)
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}
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}
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}
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void myexit(int a)
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{
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if(enable_log_color)
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printf("%s\n",RESET);
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if(keep_thread_running)
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{
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if(pthread_cancel(keep_thread))
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{
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mylog(log_warn,"pthread_cancel failed\n");
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}
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else
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{
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mylog(log_info,"pthread_cancel success\n");
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}
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}
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clear_iptables_rule();
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exit(a);
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}
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vector<string> string_to_vec(const char * s,const char * sp) {
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vector<string> res;
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string str=s;
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82
common.h
82
common.h
@ -61,66 +61,6 @@ typedef long long i64_t;
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typedef unsigned int u32_t;
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typedef int i32_t;
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const int max_data_len=1600;
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const int buf_len=max_data_len+400;
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const u32_t max_handshake_conn_num=10000;
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const u32_t max_ready_conn_num=1000;
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const u32_t anti_replay_window_size=4000;
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const int max_conv_num=10000;
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const u32_t client_handshake_timeout=5000;//unit ms
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const u32_t client_retry_interval=1000;//ms
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const u32_t server_handshake_timeout=client_handshake_timeout+5000;// this should be longer than clients. client retry initially ,server retry passtively
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const int conv_clear_ratio=10; //conv grabage collecter check 1/10 of all conv one time
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const int conn_clear_ratio=30;
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const int conv_clear_min=1;
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const int conn_clear_min=1;
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const u32_t conv_clear_interval=3000;//ms
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const u32_t conn_clear_interval=3000;//ms
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const i32_t max_fail_time=0;//disable
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const u32_t heartbeat_interval=1000;//ms
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const u32_t timer_interval=400;//ms. this should be smaller than heartbeat_interval and retry interval;
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const uint32_t conv_timeout=120000; //ms. 120 second
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//const u32_t conv_timeout=30000; //for test
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const u32_t client_conn_timeout=15000;//ms.
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const u32_t client_conn_uplink_timeout=client_conn_timeout+2000;//ms
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const uint32_t server_conn_timeout=conv_timeout+60000;//ms. this should be 60s+ longer than conv_timeout,so that conv_manager can destruct convs gradually,to avoid latency glicth
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//const u32_t server_conn_timeout=conv_timeout+10000;//for test
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const u32_t iptables_rule_keep_interval=15;//unit: second;
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extern int about_to_exit;
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extern pthread_t keep_thread;
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extern int keep_thread_running;
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enum raw_mode_t{mode_faketcp=0,mode_udp,mode_icmp,mode_end};
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extern raw_mode_t raw_mode;
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enum program_mode_t {unset_mode=0,client_mode,server_mode};
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extern program_mode_t program_mode;
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extern unordered_map<int, const char*> raw_mode_tostring ;
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extern int socket_buf_size;
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extern int force_socket_buf;
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enum server_current_state_t {server_idle=0,server_handshake1,server_ready}; //server state machine
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enum client_current_state_t {client_idle=0,client_tcp_handshake,client_handshake1,client_handshake2,client_ready};//client state machine
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union current_state_t
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{
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server_current_state_t server_current_state;
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client_current_state_t client_current_state;
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};
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typedef u32_t id_t;
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typedef u64_t iv_t;
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@ -129,6 +69,9 @@ typedef u64_t padding_t;
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typedef u64_t anti_replay_seq_t;
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const int max_data_len=1600;
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const int buf_len=max_data_len+400;
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u64_t get_current_time();
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u64_t pack_u64(u32_t a,u32_t b);
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@ -138,7 +81,6 @@ u32_t get_u64_l(u64_t a);
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char * my_ntoa(u32_t ip);
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void myexit(int a);
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void init_random_number_fd();
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u64_t get_true_random_number_64();
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u32_t get_true_random_number();
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@ -148,28 +90,20 @@ u64_t hton64(u64_t a);
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bool larger_than_u16(uint16_t a,uint16_t b);
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bool larger_than_u32(u32_t a,u32_t b);
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void setnonblocking(int sock);
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int set_buf_size(int fd);
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unsigned short csum(const unsigned short *ptr,int nbytes);
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void signal_handler(int sig);
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int numbers_to_char(id_t id1,id_t id2,id_t id3,char * &data,int &len);
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int char_to_numbers(const char * data,int len,id_t &id1,id_t &id2,id_t &id3);
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int set_buf_size(int fd,int socket_buf_size,int force_socket_buf);
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void myexit(int a);
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int add_iptables_rule(const char *);
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unsigned short csum(const unsigned short *ptr,int nbytes);
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int clear_iptables_rule();
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int iptables_gen_add(const char * s,u32_t const_id);
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int iptables_rule_init(const char * s,u32_t const_id,int keep);
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int keep_iptables_rule();
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int numbers_to_char(id_t id1,id_t id2,id_t id3,char * &data,int &len);
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int char_to_numbers(const char * data,int len,id_t &id1,id_t &id2,id_t &id3);
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const int show_none=0;
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const int show_command=0x1;
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const int show_log=0x2;
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const int show_all=show_command|show_log;
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int run_command(string command,char * &output,int flag=show_all);
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//int run_command_no_log(string command,char * &output);
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int read_file(const char * file,string &output);
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2
log.cpp
2
log.cpp
@ -1,11 +1,11 @@
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#include "log.h"
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#include "misc.h"
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int log_level=log_info;
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int enable_log_position=0;
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int enable_log_color=1;
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void log0(const char * file,const char * function,int line,int level,const char* str, ...) {
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if(level>log_level) return ;
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1
log.h
1
log.h
@ -5,6 +5,7 @@
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#include "common.h"
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using namespace std;
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5
main.cpp
5
main.cpp
@ -8,6 +8,7 @@
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int mtu_warn=1375;//if a packet larger than mtu warn is receviced,there will be a warning
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int server_on_raw_recv_pre_ready(conn_info_t &conn_info,char * ip_port,u32_t tmp_oppsite_const_id);
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int server_on_raw_recv_ready(conn_info_t &conn_info,char * ip_port,char type,char *data,int data_len);
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int server_on_raw_recv_handshake1(conn_info_t &conn_info,char * ip_port,char * data, int data_len);
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@ -809,7 +810,7 @@ int server_on_raw_recv_ready(conn_info_t &conn_info,char * ip_port,char type,cha
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return -1;
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}
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setnonblocking(new_udp_fd);
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set_buf_size(new_udp_fd);
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set_buf_size(new_udp_fd,socket_buf_size,force_socket_buf);
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mylog(log_debug, "[%s]created new udp_fd %d\n",ip_port, new_udp_fd);
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int ret = connect(new_udp_fd, (struct sockaddr *) &remote_addr_in,
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@ -1090,7 +1091,7 @@ int client_event_loop()
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//g_packet_info.src_port=source_port;
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udp_fd=socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
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set_buf_size(udp_fd);
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set_buf_size(udp_fd,socket_buf_size,force_socket_buf);
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int yes = 1;
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//setsockopt(udp_fd, SOL_SOCKET, SO_REUSEADDR, &yes, sizeof(yes));
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184
misc.cpp
184
misc.cpp
@ -18,11 +18,8 @@ int local_port = -1, remote_port=-1,source_port=0;//similiar to local_ip remote
|
||||
|
||||
int force_source_ip=0; //if --source-ip is enabled
|
||||
|
||||
|
||||
id_t const_id=0;//an id used for connection recovery,its generated randomly,it never change since its generated
|
||||
|
||||
|
||||
|
||||
int udp_fd=-1; //for client only. client use this fd to listen and handle udp connection
|
||||
int bind_fd=-1; //bind only,never send or recv. its just a dummy fd for bind,so that other program wont occupy the same port
|
||||
int epollfd=-1; //fd for epoll
|
||||
@ -42,7 +39,21 @@ int debug_resend=0; // debug only
|
||||
|
||||
char key_string[1000]= "secret key";// -k option
|
||||
|
||||
string iptables_pattern="";
|
||||
int iptables_rule_added=0;
|
||||
int iptables_rule_keeped=0;
|
||||
int iptables_rule_keep_index=0;
|
||||
|
||||
program_mode_t program_mode=unset_mode;//0 unset; 1client 2server
|
||||
raw_mode_t raw_mode=mode_faketcp;
|
||||
unordered_map<int, const char*> raw_mode_tostring = {{mode_faketcp, "faketcp"}, {mode_udp, "udp"}, {mode_icmp, "icmp"}};
|
||||
|
||||
int about_to_exit=0;
|
||||
|
||||
|
||||
|
||||
int socket_buf_size=1024*1024;
|
||||
int force_socket_buf=0;
|
||||
|
||||
//char lower_level_arg[1000];
|
||||
int process_lower_level_arg()//handle --lower-level option
|
||||
@ -974,3 +985,170 @@ int handle_lower_level(raw_info_t &raw_info)//fill lower_level info,when --lower
|
||||
|
||||
|
||||
|
||||
/*
|
||||
int add_iptables_rule(const char * s)
|
||||
{
|
||||
|
||||
iptables_pattern=s;
|
||||
|
||||
string rule="iptables -I INPUT ";
|
||||
rule+=iptables_pattern;
|
||||
rule+=" -j DROP";
|
||||
|
||||
char *output;
|
||||
if(run_command(rule.c_str(),output)==0)
|
||||
{
|
||||
mylog(log_warn,"auto added iptables rule by: %s\n",rule.c_str());
|
||||
}
|
||||
else
|
||||
{
|
||||
mylog(log_fatal,"auto added iptables failed by: %s\n",rule.c_str());
|
||||
//mylog(log_fatal,"reason : %s\n",strerror(errno));
|
||||
myexit(-1);
|
||||
}
|
||||
iptables_rule_added=1;
|
||||
return 0;
|
||||
}*/
|
||||
string chain[2];
|
||||
string rule_keep[2];
|
||||
string rule_keep_add[2];
|
||||
string rule_keep_del[2];
|
||||
u64_t keep_rule_last_time=0;
|
||||
|
||||
pthread_t keep_thread;
|
||||
int keep_thread_running=0;
|
||||
int iptables_gen_add(const char * s,u32_t const_id)
|
||||
{
|
||||
string dummy="";
|
||||
iptables_pattern=s;
|
||||
chain[0] =dummy+ "udp2rawDwrW_C";
|
||||
rule_keep[0]=dummy+ iptables_pattern+" -j " +chain[0];
|
||||
rule_keep_add[0]=dummy+"iptables -I INPUT "+rule_keep[0];
|
||||
|
||||
char *output;
|
||||
run_command(dummy+"iptables -N "+chain[0],output,show_none);
|
||||
run_command(dummy+"iptables -F "+chain[0],output);
|
||||
run_command(dummy+"iptables -I "+chain[0] + " -j DROP",output);
|
||||
|
||||
rule_keep_del[0]=dummy+"iptables -D INPUT "+rule_keep[0];
|
||||
|
||||
run_command(rule_keep_del[0],output,show_none);
|
||||
run_command(rule_keep_del[0],output,show_none);
|
||||
|
||||
if(run_command(rule_keep_add[0],output)!=0)
|
||||
{
|
||||
mylog(log_fatal,"auto added iptables failed by: %s\n",rule_keep_add[0].c_str());
|
||||
myexit(-1);
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
int iptables_rule_init(const char * s,u32_t const_id,int keep)
|
||||
{
|
||||
iptables_pattern=s;
|
||||
iptables_rule_added=1;
|
||||
iptables_rule_keeped=keep;
|
||||
|
||||
string dummy="";
|
||||
char const_id_str[100];
|
||||
sprintf(const_id_str, "%x", const_id);
|
||||
|
||||
chain[0] =dummy+ "udp2rawDwrW_"+const_id_str+"_C0";
|
||||
chain[1] =dummy+ "udp2rawDwrW_"+const_id_str+"_C1";
|
||||
|
||||
rule_keep[0]=dummy+ iptables_pattern+" -j " +chain[0];
|
||||
rule_keep[1]=dummy+ iptables_pattern+" -j " +chain[1];
|
||||
|
||||
rule_keep_add[0]=dummy+"iptables -I INPUT "+rule_keep[0];
|
||||
rule_keep_add[1]=dummy+"iptables -I INPUT "+rule_keep[1];
|
||||
|
||||
rule_keep_del[0]=dummy+"iptables -D INPUT "+rule_keep[0];
|
||||
rule_keep_del[1]=dummy+"iptables -D INPUT "+rule_keep[1];
|
||||
|
||||
keep_rule_last_time=get_current_time();
|
||||
|
||||
char *output;
|
||||
|
||||
for(int i=0;i<=iptables_rule_keeped;i++)
|
||||
{
|
||||
run_command(dummy+"iptables -N "+chain[i],output);
|
||||
run_command(dummy+"iptables -F "+chain[i],output);
|
||||
run_command(dummy+"iptables -I "+chain[i] + " -j DROP",output);
|
||||
|
||||
if(run_command(rule_keep_add[i],output)!=0)
|
||||
{
|
||||
mylog(log_fatal,"auto added iptables failed by: %s\n",rule_keep_add[i].c_str());
|
||||
myexit(-1);
|
||||
}
|
||||
}
|
||||
mylog(log_warn,"auto added iptables rules\n");
|
||||
return 0;
|
||||
}
|
||||
|
||||
int keep_iptables_rule() //magic to work on a machine without grep/iptables --check/-m commment
|
||||
{
|
||||
/*
|
||||
if(iptables_rule_keeped==0) return 0;
|
||||
|
||||
|
||||
uint64_t tmp_current_time=get_current_time();
|
||||
if(tmp_current_time-keep_rule_last_time<=iptables_rule_keep_interval)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
else
|
||||
{
|
||||
keep_rule_last_time=tmp_current_time;
|
||||
}*/
|
||||
|
||||
mylog(log_debug,"keep_iptables_rule begin %llu\n",get_current_time());
|
||||
iptables_rule_keep_index+=1;
|
||||
iptables_rule_keep_index%=2;
|
||||
|
||||
string dummy="";
|
||||
char *output;
|
||||
|
||||
int i=iptables_rule_keep_index;
|
||||
|
||||
run_command(dummy + "iptables -N " + chain[i], output,show_none);
|
||||
|
||||
if (run_command(dummy + "iptables -F " + chain[i], output,show_none) != 0)
|
||||
mylog(log_warn, "iptables -F failed %d\n",i);
|
||||
|
||||
if (run_command(dummy + "iptables -I " + chain[i] + " -j DROP",output,show_none) != 0)
|
||||
mylog(log_warn, "iptables -I failed %d\n",i);
|
||||
|
||||
if (run_command(rule_keep_del[i], output,show_none) != 0)
|
||||
mylog(log_warn, "rule_keep_del failed %d\n",i);
|
||||
|
||||
run_command(rule_keep_del[i], output,show_none); //do it twice,incase it fails for unknown random reason
|
||||
|
||||
if(run_command(rule_keep_add[i], output,show_log)!=0)
|
||||
mylog(log_warn, "rule_keep_del failed %d\n",i);
|
||||
|
||||
mylog(log_debug,"keep_iptables_rule end %llu\n",get_current_time());
|
||||
return 0;
|
||||
}
|
||||
|
||||
int clear_iptables_rule()
|
||||
{
|
||||
char *output;
|
||||
string dummy="";
|
||||
if(!iptables_rule_added) return 0;
|
||||
|
||||
for(int i=0;i<=iptables_rule_keeped;i++ )
|
||||
{
|
||||
run_command(rule_keep_del[i],output);
|
||||
run_command(dummy+"iptables -F "+chain[i],output);
|
||||
run_command(dummy+"iptables -X "+chain[i],output);
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
void signal_handler(int sig)
|
||||
{
|
||||
about_to_exit=1;
|
||||
// myexit(0);
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
80
misc.h
80
misc.h
@ -13,17 +13,64 @@
|
||||
#include "log.h"
|
||||
#include "network.h"
|
||||
|
||||
|
||||
|
||||
const u32_t max_handshake_conn_num=10000;
|
||||
const u32_t max_ready_conn_num=1000;
|
||||
const u32_t anti_replay_window_size=4000;
|
||||
const int max_conv_num=10000;
|
||||
|
||||
const u32_t client_handshake_timeout=5000;//unit ms
|
||||
const u32_t client_retry_interval=1000;//ms
|
||||
|
||||
const u32_t server_handshake_timeout=client_handshake_timeout+5000;// this should be longer than clients. client retry initially ,server retry passtively
|
||||
|
||||
const int conv_clear_ratio=10; //conv grabage collecter check 1/10 of all conv one time
|
||||
const int conn_clear_ratio=30;
|
||||
const int conv_clear_min=1;
|
||||
const int conn_clear_min=1;
|
||||
|
||||
const u32_t conv_clear_interval=3000;//ms
|
||||
const u32_t conn_clear_interval=3000;//ms
|
||||
|
||||
|
||||
const i32_t max_fail_time=0;//disable
|
||||
|
||||
const u32_t heartbeat_interval=1000;//ms
|
||||
|
||||
const u32_t timer_interval=400;//ms. this should be smaller than heartbeat_interval and retry interval;
|
||||
|
||||
const uint32_t conv_timeout=120000; //ms. 120 second
|
||||
//const u32_t conv_timeout=30000; //for test
|
||||
|
||||
const u32_t client_conn_timeout=15000;//ms.
|
||||
const u32_t client_conn_uplink_timeout=client_conn_timeout+2000;//ms
|
||||
|
||||
const uint32_t server_conn_timeout=conv_timeout+60000;//ms. this should be 60s+ longer than conv_timeout,so that conv_manager can destruct convs gradually,to avoid latency glicth
|
||||
//const u32_t server_conn_timeout=conv_timeout+10000;//for test
|
||||
|
||||
const u32_t iptables_rule_keep_interval=15;//unit: second;
|
||||
|
||||
enum server_current_state_t {server_idle=0,server_handshake1,server_ready}; //server state machine
|
||||
enum client_current_state_t {client_idle=0,client_tcp_handshake,client_handshake1,client_handshake2,client_ready};//client state machine
|
||||
|
||||
enum raw_mode_t{mode_faketcp=0,mode_udp,mode_icmp,mode_end};
|
||||
enum program_mode_t {unset_mode=0,client_mode,server_mode};
|
||||
|
||||
union current_state_t
|
||||
{
|
||||
server_current_state_t server_current_state;
|
||||
client_current_state_t client_current_state;
|
||||
};
|
||||
|
||||
extern char local_ip[100], remote_ip[100],source_ip[100];//local_ip is for -l option,remote_ip for -r option,source for --source-ip
|
||||
extern u32_t local_ip_uint32,remote_ip_uint32,source_ip_uint32;//convert from last line.
|
||||
extern int local_port , remote_port,source_port;//similiar to local_ip remote_ip,buf for port.source_port=0 indicates --source-port is not enabled
|
||||
|
||||
extern int force_source_ip; //if --source-ip is enabled
|
||||
|
||||
|
||||
extern id_t const_id;//an id used for connection recovery,its generated randomly,it never change since its generated
|
||||
|
||||
|
||||
|
||||
extern int udp_fd; //for client only. client use this fd to listen and handle udp connection
|
||||
extern int bind_fd; //bind only,never send or recv. its just a dummy fd for bind,so that other program wont occupy the same port
|
||||
extern int epollfd; //fd for epoll
|
||||
@ -43,6 +90,21 @@ extern int debug_resend; // debug only
|
||||
|
||||
extern char key_string[1000];// -k option
|
||||
|
||||
|
||||
extern raw_mode_t raw_mode;
|
||||
|
||||
extern program_mode_t program_mode;
|
||||
extern unordered_map<int, const char*> raw_mode_tostring ;
|
||||
|
||||
extern int about_to_exit;
|
||||
|
||||
extern int socket_buf_size;
|
||||
extern int force_socket_buf;
|
||||
|
||||
extern pthread_t keep_thread;
|
||||
extern int keep_thread_running;
|
||||
|
||||
|
||||
int process_lower_level_arg();
|
||||
void print_help();
|
||||
void iptables_rule();
|
||||
@ -52,4 +114,16 @@ int set_timer(int epollfd,int &timer_fd);
|
||||
int set_timer_server(int epollfd,int &timer_fd);
|
||||
int handle_lower_level(raw_info_t &raw_info);
|
||||
|
||||
int add_iptables_rule(const char *);
|
||||
|
||||
int clear_iptables_rule();
|
||||
|
||||
int iptables_gen_add(const char * s,u32_t const_id);
|
||||
int iptables_rule_init(const char * s,u32_t const_id,int keep);
|
||||
int keep_iptables_rule();
|
||||
|
||||
|
||||
|
||||
void signal_handler(int sig);
|
||||
|
||||
#endif /* MISC_H_ */
|
||||
|
||||
@ -7,6 +7,7 @@
|
||||
#include "common.h"
|
||||
#include "network.h"
|
||||
#include "log.h"
|
||||
#include "misc.h"
|
||||
|
||||
int raw_recv_fd=-1;
|
||||
int raw_send_fd=-1;
|
||||
|
||||
Loading…
Reference in New Issue
Block a user