fix help page

ISSUE_TEMPLATE.md

@@ -1,6 +0,0 @@
-For English speaking user：
-https://github.com/wangyu-/UDPspeeder/wiki/Issue-Guide
-
-中文用户请看：
-https://github.com/wangyu-/UDPspeeder/wiki/发Issue前请看
-(否则Issue可能被忽略，或被直接关掉)

README.md

@@ -78,7 +78,7 @@ Assume your server ip is 44.55.66.77, you have a service listening on udp port 7
 ./speederv2 -c -l0.0.0.0:3333  -r44.55.66.77:4096 -f20:10 -k "passwd"
 ```
 
-Now connecting to UDP port 3333 at the client side is equivalent to connecting to port 7777 at the server side, and the connection has been boosted by UDPspeeder.
+Now connecting to UDP port 3333 at the client side is equivalent to connecting to port 7777 at the server side, and the connection is boosted by UDPspeeder.
 
 ##### Note
 
@@ -86,43 +86,43 @@ Now connecting to UDP port 3333 at the client side is equivalent to connecting t
 
 `-k` enables simple XOR encryption
 
+To run stably, pay attention to MTU. You can also try `--mode 0`,there will be no MTU problem in this mode.
+
 # Advanced Topic
 ### Full Options
 ```
 UDPspeeder V2
-git version: 6f55b8a2fc    build date: Nov 19 2017 06:11:23
+git version:8e7a8aed92    build date:Oct 25 2017 02:00:54
 repository: https://github.com/wangyu-/UDPspeeder
 
 usage:
     run as client : ./this_program -c -l local_listen_ip:local_port -r server_ip:server_port  [options]
     run as server : ./this_program -s -l server_listen_ip:server_port -r remote_ip:remote_port  [options]
 
-common options, must be same on both sides:
+common option,must be same on both sides:
     -k,--key              <string>        key for simple xor encryption. if not set,xor is disabled
 main options:
     -f,--fec              x:y             forward error correction,send y redundant packets for every x packets
     --timeout             <number>        how long could a packet be held in queue before doing fec,unit: ms,default :8ms
+    --mode                <number>        fec-mode,available values: 0,1 ; 0 cost less bandwidth,1 cost less latency(default)
     --report              <number>        turn on send/recv report,and set a period for reporting,unit:s
 advanced options:
-    --mode                <number>        fec-mode,available values: 0,1; mode 0(default) costs less bandwidth,no mtu problem.
+    --mtu                 <number>        mtu. for mode 0,the program will split packet to segment smaller than mtu_value.
-                                          mode 1 usually introduces less latency, but you have to care about mtu.
-    --mtu                 <number>        mtu. for mode 0, the program will split packet to segment smaller than mtu value.
                                           for mode 1,no packet will be split,the program just check if the mtu is exceed.
-                                          default value: 1250. you typically shouldnt change this value.
+                                          default value:1250
-    -q,--queue-len        <number>        fec queue len, only for mode 0, fec will be performed immediately after queue is full.
-                                          default value: 200. 
     -j,--jitter           <number>        simulated jitter.randomly delay first packet for 0~<number> ms,default value:0.
                                           do not use if you dont know what it means.
     -i,--interval         <number>        scatter each fec group to a interval of <number> ms,to protect burst packet loss.
                                           default value:0.do not use if you dont know what it means.
-    --random-drop         <number>        simulate packet loss, unit: 0.01%. default value: 0.
+    --random-drop         <number>        simulate packet loss ,unit:0.01%. default value: 0
-    --disable-obscure     <number>        disable obscure, to save a bit bandwidth and cpu.
+    --disable-obscure     <number>        disable obscure,to save a bit bandwidth and cpu
 developer options:
     --fifo                <string>        use a fifo(named pipe) for sending commands to the running program,so that you
                                           can change fec encode parameters dynamically,check readme.md in repository for
                                           supported commands.
     -j ,--jitter          jmin:jmax       similiar to -j above,but create jitter randomly between jmin and jmax
     -i,--interval         imin:imax       similiar to -i above,but scatter randomly between imin and imax
+    -q,--queue-len        <number>        max fec queue len,only for mode 0
     --decode-buf          <number>        size of buffer of fec decoder,unit:packet,default:2000
     --fix-latency         <number>        try to stabilize latency,only for mode 0
     --delay-capacity      <number>        max number of delayed packets

common.cpp

@@ -52,7 +52,7 @@ u64_t get_current_time()//ms
 {
 	timespec tmp_time;
 	clock_gettime(CLOCK_MONOTONIC, &tmp_time);
-	return ((u64_t)tmp_time.tv_sec)*1000llu+((u64_t)tmp_time.tv_nsec)/(1000*1000llu);
+	return tmp_time.tv_sec*1000+tmp_time.tv_nsec/(1000*1000l);
 }
 
 u64_t get_current_time_us()

doc/README.zh-cn.md

@@ -94,39 +94,37 @@ https://github.com/wangyu-/UDPspeeder/releases
 ### 命令选项
 ```
 UDPspeeder V2
-git version: 6f55b8a2fc    build date: Nov 19 2017 06:11:23
+git version:8e7a8aed92    build date:Oct 25 2017 02:00:54
 repository: https://github.com/wangyu-/UDPspeeder
 
 usage:
     run as client : ./this_program -c -l local_listen_ip:local_port -r server_ip:server_port  [options]
     run as server : ./this_program -s -l server_listen_ip:server_port -r remote_ip:remote_port  [options]
 
-common options, must be same on both sides:
+common option,must be same on both sides:
     -k,--key              <string>        key for simple xor encryption. if not set,xor is disabled
 main options:
     -f,--fec              x:y             forward error correction,send y redundant packets for every x packets
     --timeout             <number>        how long could a packet be held in queue before doing fec,unit: ms,default :8ms
+    --mode                <number>        fec-mode,available values: 0,1 ; 0 cost less bandwidth,1 cost less latency(default)
     --report              <number>        turn on send/recv report,and set a period for reporting,unit:s
 advanced options:
-    --mode                <number>        fec-mode,available values: 0,1; mode 0(default) costs less bandwidth,no mtu problem.
+    --mtu                 <number>        mtu. for mode 0,the program will split packet to segment smaller than mtu_value.
-                                          mode 1 usually introduces less latency, but you have to care about mtu.
-    --mtu                 <number>        mtu. for mode 0, the program will split packet to segment smaller than mtu value.
                                           for mode 1,no packet will be split,the program just check if the mtu is exceed.
-                                          default value: 1250. you typically shouldnt change this value.
+                                          default value:1250
-    -q,--queue-len        <number>        fec queue len, only for mode 0, fec will be performed immediately after queue is full.
-                                          default value: 200. 
     -j,--jitter           <number>        simulated jitter.randomly delay first packet for 0~<number> ms,default value:0.
                                           do not use if you dont know what it means.
     -i,--interval         <number>        scatter each fec group to a interval of <number> ms,to protect burst packet loss.
                                           default value:0.do not use if you dont know what it means.
-    --random-drop         <number>        simulate packet loss, unit: 0.01%. default value: 0.
+    --random-drop         <number>        simulate packet loss ,unit:0.01%. default value: 0
-    --disable-obscure     <number>        disable obscure, to save a bit bandwidth and cpu.
+    --disable-obscure     <number>        disable obscure,to save a bit bandwidth and cpu
 developer options:
     --fifo                <string>        use a fifo(named pipe) for sending commands to the running program,so that you
                                           can change fec encode parameters dynamically,check readme.md in repository for
                                           supported commands.
     -j ,--jitter          jmin:jmax       similiar to -j above,but create jitter randomly between jmin and jmax
     -i,--interval         imin:imax       similiar to -i above,but scatter randomly between imin and imax
+    -q,--queue-len        <number>        max fec queue len,only for mode 0
     --decode-buf          <number>        size of buffer of fec decoder,unit:packet,default:2000
     --fix-latency         <number>        try to stabilize latency,only for mode 0
     --delay-capacity      <number>        max number of delayed packets
@@ -139,8 +137,6 @@ log and help options:
     --disable-color                       disable log color
     -h,--help                             print this help message
 
-
-
 ```
 ### 包发送选项，两端设置可以不同。 只影响本地包发送。
 ##### `-f` 选项
@@ -240,9 +236,7 @@ run at client side:
 
 如果只需要加速UDP，不需要加速TCP，可以把kcptun换成其他的任意端口转发方式，比如ncat/socat/ssh tunnel/iptables/[tinyPortMapper](https://github.com/wangyu-/tinyPortMapper/releases)。
 
-如果你没有kcptun只有BBR/锐速的话，也可以把kcptun换成ncat/socat/ssh tunnel/iptables/[tinyPortMapper](https://github.com/wangyu-/tinyPortMapper/releases)。这样，TCP流量由锐速/BBR加速，UDP由UDPspeeder加速。
+另外，如果没有kcptun只有BBR/锐速的话，也可以把kcptun换成ncat/socat/ssh tunnel/iptables/[tinyPortMapper](https://github.com/wangyu-/tinyPortMapper/releases)。这样，TCP流量由锐速/BBR加速，UDP由UDPspeeder加速。
-
-另外，即使你不想使用$\*\*\*的TCP功能，你也必须把$\*\*\*的TCP端口转发过来，否则无法使用UDP功能，这是socks5协议的工作方式决定的。($\*\*\*-redir方式不受此限制)
 
 #### UDPspeeder + openvpn + $*** 混合方案，也适用于其他VPN
 也是我正在用的方案。优点是可以随时在vpn和$\*\*\*方案间快速切换。
@@ -263,23 +257,12 @@ run at client side:
 https://github.com/wangyu-/UDPspeeder/wiki/win10系统UDPspeeder-OpenVPN的完整设置
 
 
-#### UDPspeeder+OpenVPN运行在linux上，透明加速linux本机的网络
-
-https://github.com/wangyu-/tinyFecVPN/wiki/tinyFecVPN运行在linux上，透明加速linux本机的网络
-
-
-#### UDPspeeder+OpenVPN运行在虚拟机中，加速windows和局域网内其他主机的网络
-
-https://github.com/wangyu-/tinyFecVPN/wiki/tinyFecVPN运行在虚拟机中，加速windows和局域网内其他主机的网络
-
-
-
 #### 用树莓派做路由器，搭建透明代理，加速游戏主机的网络
 
 https://github.com/wangyu-/UDPspeeder/wiki/用树莓派做路由器，搭建透明代理，加速游戏主机的网络
 
+
 # 编译教程
 暂时先参考udp2raw的这篇教程，几乎一样的过程。
 
 https://github.com/wangyu-/udp2raw-tunnel/blob/master/doc/build_guide.zh-cn.md
-

misc.cpp

@@ -15,7 +15,6 @@ int mtu_warn=1350;
 
 int disable_mtu_warn=1;
 int disable_fec=0;
-int disable_checksum=0;
 
 int debug_force_flush_fec=0;
 
@@ -559,7 +558,6 @@ void process_arg(int argc, char *argv[])
 		{"disable-fec", no_argument,    0, 1},
 		{"disable-obscure", no_argument,    0, 1},
 		{"disable-xor", no_argument,    0, 1},
-		{"disable-checksum", no_argument,    0, 1},
 		{"fix-latency", no_argument,    0, 1},
 		{"sock-buf", required_argument,    0, 1},
 		{"random-drop", required_argument,    0, 1},
@@ -780,11 +778,6 @@ void process_arg(int argc, char *argv[])
 				mylog(log_info,"xor disabled\n");
 				disable_xor=1;
 			}
-			else if(strcmp(long_options[option_index].name,"disable-checksum")==0)
-			{
-				disable_checksum=1;
-				mylog(log_warn,"checksum disabled\n");
-			}
 			else if(strcmp(long_options[option_index].name,"fix-latency")==0)
 			{
 				mylog(log_info,"fix-latency enabled\n");

misc.h

@@ -22,7 +22,6 @@ extern int mtu_warn;
 
 extern int disable_mtu_warn;
 extern int disable_fec;
-extern int disable_checksum;
 
 extern int debug_force_flush_fec;
 

packet.cpp

@@ -9,7 +9,6 @@
 #include "common.h"
 #include "log.h"
 #include "packet.h"
-#include "misc.h"
 
 int iv_min=4;
 int iv_max=32;//< 256;
@@ -316,7 +315,6 @@ int get_conv0(u32_t &conv,const char *input,int len_in,char *&output,int &len_ou
 }
 int put_crc32(char * s,int &len)
 {
-	if(disable_checksum)return 0;
 	assert(len>=0);
 	//if(len<0) return -1;
 	u32_t crc32=crc32h((unsigned char *)s,len);
@@ -357,8 +355,8 @@ int de_cook(char * s,int &len)
 }
 int rm_crc32(char * s,int &len)
 {
-	if(disable_checksum)return 0;
 	assert(len>=0);
+
 	len-=sizeof(u32_t);
 	if(len<0) return -1;
 	u32_t crc32_in=read_u32(s+len);

tunnel.cpp

@@ -113,12 +113,12 @@ int tunnel_client_event_loop()
 		if (nfds < 0) {  //allow zero
 			if(errno==EINTR  )
 			{
-				mylog(log_info,"epoll interrupted by signal continue\n");
+				mylog(log_info,"epoll interrupted by signal\n");
-				//myexit(0);
+				myexit(0);
 			}
 			else
 			{
-				mylog(log_fatal,"epoll_wait return %d,%s\n", nfds,strerror(errno));
+				mylog(log_fatal,"epoll_wait return %d\n", nfds);
 				myexit(-1);
 			}
 		}
@@ -417,12 +417,12 @@ int tunnel_server_event_loop()
 		if (nfds < 0) {  //allow zero
 			if(errno==EINTR  )
 			{
-				mylog(log_info,"epoll interrupted by signal,continue\n");
+				mylog(log_info,"epoll interrupted by signal\n");
-				//myexit(0);
+				myexit(0);
 			}
 			else
 			{
-				mylog(log_fatal,"epoll_wait return %d,%s\n", nfds,strerror(errno));
+				mylog(log_fatal,"epoll_wait return %d\n", nfds);
 				myexit(-1);
 			}
 		}