105 Commits

Author SHA1 Message Date
wangyu-
8680b06882 Update README.zh-cn.md 2017-11-18 05:31:01 -08:00
wangyu-
57cce3a424 Update README.zh-cn.md 2017-11-18 05:30:23 -08:00
wangyu-
6ab4294bd9 Update README.zh-cn.md 2017-11-18 05:22:27 -08:00
wangyu-
ebdabb4598 Update README.zh-cn.md 2017-11-18 05:21:41 -08:00
wangyu-
c254545290 Update README.zh-cn.md 2017-11-18 01:14:33 -08:00
wangyu-
1301fdc96d Merge branch 'master' of https://github.com/wangyu-/UDPspeeder 2017-11-18 00:05:25 -06:00
wangyu-
f58dfe4fdd fixed a warn of last commit 2017-11-18 00:03:08 -06:00
wangyu-
3fd198a1e2 fixed a possible MTU issue when redundant num=0 2017-11-18 00:01:21 -06:00
wangyu-
017e851c2d Update README.md 2017-11-17 09:50:58 -08:00
wangyu-
2929eead0e Update README.md 2017-11-17 09:46:52 -08:00
wangyu-
e2c2f2dfec Update README.zh-cn.md 2017-11-17 09:12:30 -08:00
wangyu-
d0ebd67dbd Update README.md 2017-11-17 08:54:30 -08:00
wangyu-
211fcee8db Update README.zh-cn.md 2017-11-17 08:51:05 -08:00
wangyu-
6b4a2dfe21 increased timeout 2017-11-17 01:17:31 -06:00
wangyu-
65939eb9e7 Merge branch 'master' of https://github.com/wangyu-/UDPspeeder 2017-11-17 01:12:17 -06:00
wangyu-
9c00a2f3a6 increased timeout 2017-11-17 01:12:04 -06:00
wangyu-
4706e51fad Update README.zh-cn.md 2017-11-16 10:52:01 -08:00
wangyu-
c3786a91d8 Update README.zh-cn.md 2017-11-16 10:31:11 -08:00
wangyu-
680f127350 Update README.zh-cn.md 2017-11-16 10:28:57 -08:00
wangyu-
7713cf0c15 Update README.zh-cn.md 2017-11-16 10:18:16 -08:00
wangyu-
5024a02d20 Update README.zh-cn.md 2017-11-16 10:12:32 -08:00
wangyu-
f2d9deb2a3 Update README.zh-cn.md 2017-11-16 10:09:47 -08:00
wangyu-
c5c440245c Update README.zh-cn.md 2017-11-16 06:42:20 -08:00
wangyu-
c95e2db1af Update README.zh-cn.md 2017-11-16 06:41:26 -08:00
wangyu-
82a2b3cb9a Update README.zh-cn.md 2017-11-16 03:10:37 -08:00
wangyu-
8ecc696da5 Update README.zh-cn.md 2017-11-16 03:04:21 -08:00
wangyu-
6e6fc62fb8 Update README.zh-cn.md 2017-11-15 20:34:32 -08:00
wangyu-
ea03e5f8ec Update README.zh-cn.md 2017-11-15 20:33:21 -08:00
wangyu-
3be2642397 Update README.zh-cn.md 2017-11-15 20:31:47 -08:00
wangyu-
d05bcfc2f8 Update README.zh-cn.md 2017-11-15 20:28:48 -08:00
wangyu-
e50292bd4a Update README.zh-cn.md 2017-11-15 20:26:42 -08:00
wangyu-
363aec12d4 Update README.zh-cn.md 2017-11-12 20:40:01 -08:00
wangyu-
4364a7b789 Update README.zh-cn.md 2017-11-12 20:38:37 -08:00
wangyu-
17a42a1218 Update README.zh-cn.md 2017-11-11 14:33:20 -08:00
wangyu-
9152fef474 Update README.zh-cn.md 2017-11-11 14:29:46 -08:00
wangyu-
eb7406e6f3 Update README.zh-cn.md 2017-11-11 14:18:42 -08:00
wangyu-
296a84be3c Update README.zh-cn.md 2017-11-11 14:12:58 -08:00
wangyu-
69558ab16c Update README.zh-cn.md 2017-11-11 00:58:25 -08:00
wangyu-
37b7eb7282 Update README.zh-cn.md 2017-11-09 01:47:08 -08:00
wangyu-
4ca57cf656 Update README.zh-cn.md 2017-11-09 01:11:19 -08:00
wangyu-
1a744d69ea Update README.zh-cn.md 2017-11-08 15:59:24 -08:00
wangyu-
86b68697e1 Update README.zh-cn.md 2017-11-08 15:57:23 -08:00
wangyu-
63a2f923ab Update README.md 2017-11-08 15:54:54 -08:00
wangyu-
5774b478fc Update README.md 2017-11-08 15:54:12 -08:00
wangyu-
e91dcf6647 Update README.zh-cn.md 2017-11-08 15:50:31 -08:00
wangyu-
f6c97af854 Update README.md 2017-11-08 15:49:59 -08:00
wangyu-
2f097d720d changed a log 2017-11-08 03:59:36 -06:00
wangyu-
c6de39acc8 relax an assert 2017-11-08 03:53:13 -06:00
wangyu-
0f425a3a98 added version.txt 2017-11-08 03:38:23 -06:00
wangyu-
2cc560088b Update README.md 2017-11-07 02:58:34 -08:00
wangyu-
b83b21f2eb Merge branch 'master' of https://github.com/wangyu-/UDPspeeder 2017-11-07 03:55:01 -06:00
wangyu-
f526046846 do not drop packet in mode 1 2017-11-07 03:54:54 -06:00
wangyu-
1be5fb5fc1 Update README.zh-cn.md 2017-11-06 18:53:00 -08:00
wangyu-
27874aa413 changed parameter 2017-11-06 03:19:28 -06:00
wangyu-
fde2329528 Merge branch 'master' of https://github.com/wangyu-/UDPspeeder 2017-11-06 03:17:38 -06:00
wangyu-
30b78c1339 changed parameter 2017-11-06 03:17:34 -06:00
wangyu-
17a3074b34 Update README.zh-cn.md 2017-11-05 03:38:20 -08:00
wangyu-
cce7d18163 Update README.zh-cn.md 2017-11-04 21:50:37 -07:00
wangyu-
90029e1ea7 Update README.zh-cn.md 2017-11-03 22:50:24 -07:00
wangyu-
c26a4708ee Update README.zh-cn.md 2017-11-03 22:49:28 -07:00
wangyu-
fdbf4ab205 Update udpspeeder_openvpn.md 2017-11-03 22:46:33 -07:00
wangyu-
7ee72ee84c Update udpspeeder_openvpn.md 2017-11-03 22:45:39 -07:00
wangyu-
cac5f8271c Update README.zh-cn.md 2017-10-31 21:19:26 -07:00
wangyu-
219e8e2592 Update README.zh-cn.md 2017-10-31 21:18:33 -07:00
wangyu-
02b4d59500 Update README.zh-cn.md 2017-10-31 21:18:02 -07:00
wangyu-
894bf7cd0d Update README.zh-cn.md 2017-10-31 20:52:50 -07:00
wangyu-
a8cab43139 Update README.zh-cn.md 2017-10-31 20:52:31 -07:00
wangyu-
369a9d8e1b Update README.zh-cn.md 2017-10-31 20:51:39 -07:00
wangyu-
0f7894f42f revert last comit 2017-10-31 22:29:16 -05:00
wangyu-
d7daae25bf relax restriction for fec_data_num==1 2017-10-31 22:14:57 -05:00
wangyu-
d7271b74b4 Merge branch 'master' of https://github.com/wangyu-/UDPspeeder 2017-10-31 22:05:58 -05:00
wangyu-
1eeef14470 update log 2017-10-31 22:05:51 -05:00
wangyu-
9d30caffc9 Add files via upload 2017-11-01 10:35:01 +08:00
wangyu-
e50e383ede Delete ping_compare_cn.PNG 2017-10-31 19:34:47 -07:00
wangyu-
c73a197971 Update README.zh-cn.md 2017-10-31 19:31:24 -07:00
wangyu-
ba44617124 Add files via upload 2017-11-01 10:30:10 +08:00
wangyu-
19e718f0a3 new function tcp csum 2017-10-31 19:43:25 -05:00
wangyu-
bd323be9c4 fixed log 2017-10-30 20:29:04 -05:00
wangyu-
35a85e38ae fixed a missed continue 2017-10-30 11:23:37 -05:00
wangyu-
4871983b8f Update README.zh-cn.md 2017-10-30 08:40:17 -07:00
wangyu-
fec3c39cad Update README.zh-cn.md 2017-10-30 08:38:18 -07:00
wangyu-
4d55348a4d Update README.md 2017-10-30 08:35:41 -07:00
wangyu-
36eef02d8a Update README.md 2017-10-30 08:35:24 -07:00
wangyu-
3fd48dd20e Update README.md 2017-10-30 08:33:56 -07:00
wangyu-
766aa274d9 Update README.md 2017-10-30 08:33:36 -07:00
wangyu-
d961537682 Update udpspeeder_openvpn.md 2017-10-29 23:42:21 -07:00
wangyu-
4dcfe87bd3 Update README.zh-cn.md 2017-10-29 20:47:23 -07:00
wangyu-
2aa0ece465 Update README.md 2017-10-29 20:46:24 -07:00
wangyu-
05fd84b675 Update README.zh-cn.md 2017-10-29 03:41:28 -07:00
wangyu-
1e00ff7c87 add option keep-reconnect 2017-10-28 08:56:24 -05:00
wangyu-
c76818c6a8 trival 2017-10-28 07:44:25 -05:00
wangyu-
e3e2fe6d36 changed default sub-net 2017-10-28 06:48:24 -05:00
wangyu-
7cd87e7b59 trival 2017-10-28 04:36:37 -05:00
wangyu-
c3aae9579b refactor 2017-10-28 02:05:14 -05:00
wangyu-
d9f80781a2 changed --tun-dev to required argument 2017-10-28 01:45:50 -05:00
wangyu-
203604e1b5 Merge branch 'master' of https://github.com/wangyu-/UDPspeeder 2017-10-28 01:03:12 -05:00
wangyu-
5ac6e30c8e removed tun_dev.cpp and .h 2017-10-28 01:02:58 -05:00
wangyu-
6728d5a561 add dest ip restriction 2017-10-28 00:45:19 -05:00
wangyu-
f9eaae172f fixed typo 2017-10-27 23:19:08 -05:00
wangyu-
a0eeedb12a more log,more robust 2017-10-27 22:51:33 -05:00
wangyu-
324d34c87a Update README.zh-cn.md 2017-10-27 20:25:17 -07:00
wangyu-
1fe64b5689 Update README.zh-cn.md 2017-10-27 20:20:35 -07:00
wangyu-
d5e900e91c aloww len==fec_mtu 2017-10-27 21:16:59 -05:00
wangyu-
8e00273db4 just commit 2017-10-27 08:28:43 -05:00
wangyu-
73d68a2baf just commit 2017-10-27 05:23:46 -05:00
18 changed files with 378 additions and 686 deletions

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@@ -10,11 +10,22 @@ or
![image_vpn](/images/en/udpspeeder+openvpn3.PNG)
Assume your local network to your server is lossy. Just establish a VPN connection to your server with UDPspeeder + any UDP-based VPN, access your server via this VPN connection, then your connection quality will be significantly improved. With well-tuned parameters , you can easily reduce IP or UDP/ICMP packet-loss-rate to less than 0.01% . Besides reducing packet-loss-rate, UDPspeeder can also significantly improve your TCP latency and TCP single-thread download speed.
[简体中文](/doc/README.zh-cn.md)(内容更丰富)
###### Note
You can use udp2raw with UDPspeeder together to bypass UDP firewalls.
udp2rawhttps://github.com/wangyu-/udp2raw-tunnel
You can use udp2raw with UDPspeeder together to get better speed on some ISP with UDP QoS(UDP throttling).
udp2raw's repo
https://github.com/wangyu-/udp2raw-tunnel
You can also try tinyFecVPN, a lightweight high-performance VPN with build-in FEC support:
tinyFecVPN's repo:
https://github.com/wangyu-/tinyFecVPN
# Efficacy
@@ -29,7 +40,7 @@ tested on a link with 100ms latency and 10% packet loss at both direction
# Supported Platforms
Linux host (including desktop Linux,Android phone/tablet, OpenWRT router, or Raspberry PI).
For Windows and MacOS You can run UDPspeeder inside [this](https://github.com/wangyu-/udp2raw-tunnel/releases/download/20170918.0/lede-17.01.2-x86_virtual_machine_image_with_udp2raw_pre_installed.zip) 7.5mb virtual machine image.
For Windows and MacOS You can run UDPspeeder inside [this](https://github.com/wangyu-/udp2raw-tunnel/releases/download/20171108.0/lede-17.01.2-x86_virtual_machine_image.zip) 7.5mb virtual machine image.
# How does it work
@@ -73,9 +84,9 @@ Now connecting to UDP port 3333 at the client side is equivalent to connecting t
`-f20:10` means sending 10 redundant packets for every 20 original packets.
`-k` enables simple XOR encryption to confuse DPI(Deep Packet Inspection)
`-k` enables simple XOR encryption
To run stably, pay attention to MTU.
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

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@@ -260,6 +260,39 @@ unsigned short csum(const unsigned short *ptr,int nbytes) {
return(answer);
}
unsigned short tcp_csum(const pseudo_header & ph,const unsigned short *ptr,int nbytes) {//works both for big and little endian
register long sum;
unsigned short oddbyte;
register short answer;
sum=0;
unsigned short * tmp= (unsigned short *)&ph;
for(int i=0;i<6;i++)
{
sum+=*tmp++;
}
while(nbytes>1) {
sum+=*ptr++;
nbytes-=2;
}
if(nbytes==1) {
oddbyte=0;
*((u_char*)&oddbyte)=*(u_char*)ptr;
sum+=oddbyte;
}
sum = (sum>>16)+(sum & 0xffff);
sum = sum + (sum>>16);
answer=(short)~sum;
return(answer);
}
int set_buf_size(int fd,int socket_buf_size,int force_socket_buf)
{
if(force_socket_buf)

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@@ -67,10 +67,11 @@ typedef u64_t my_time_t;
const int max_data_len=2200;
const int buf_len=max_data_len+200;
const u32_t conv_clear_interval=200;
//const u32_t timer_interval=400;
////const u32_t conv_timeout=180000;
const u32_t conv_timeout=40000;//for test
//const u32_t conv_timeout=40000;//for test
const u32_t conv_timeout=180000;
const int max_conv_num=10000;
const int max_conn_num=200;
@@ -85,12 +86,12 @@ const u32_t client_retry_interval=1000;
const u32_t server_handshake_timeout=10000;// this should be much 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=10;
const int conv_clear_min=5;
const int conv_clear_ratio=30; //conv grabage collecter check 1/30 of all conv one time
const int conn_clear_ratio=50;
const int conv_clear_min=1;
const int conn_clear_min=1;
const u32_t conv_clear_interval=1000;
const u32_t conn_clear_interval=1000;
@@ -98,7 +99,7 @@ const i32_t max_fail_time=0;//disable
const u32_t heartbeat_interval=1000;
const u32_t timer_interval=500;//this should be smaller than heartbeat_interval and retry interval;
const u32_t timer_interval=400;//this should be smaller than heartbeat_interval and retry interval;
//const uint32_t conv_timeout=120000; //120 second
//const u32_t conv_timeout=120000; //for test
@@ -135,7 +136,7 @@ typedef u64_t anti_replay_seq_t;
typedef u64_t fd64_t;
//enum dest_type{none=0,type_fd64_ip_port,type_fd64,type_fd64_ip_port_conv,type_fd64_conv/*,type_fd*/};
enum dest_type{none=0,type_fd64_ip_port,type_fd64,type_fd,type_fd_ip_port/*,type_fd*/};
enum dest_type{none=0,type_fd64_ip_port,type_fd64,type_fd,type_write_fd,type_fd_ip_port/*,type_fd*/};
struct ip_port_t
{
@@ -176,6 +177,13 @@ struct fd_info_t
ip_port_t ip_port;
};
struct pseudo_header {
u_int32_t source_address;
u_int32_t dest_address;
u_int8_t placeholder;
u_int8_t protocol;
u_int16_t tcp_length;
};
u64_t get_current_time();
u64_t get_current_time_us();
@@ -209,6 +217,7 @@ void setnonblocking(int sock);
int set_buf_size(int fd,int socket_buf_size,int force_socket_buf=0);
unsigned short csum(const unsigned short *ptr,int nbytes);
unsigned short tcp_csum(const pseudo_header & ph,const unsigned short *ptr,int nbytes);
void signal_handler(int sig);
int numbers_to_char(id_t id1,id_t id2,id_t id3,char * &data,int &len);

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@@ -107,7 +107,7 @@ struct conn_info_t //stores info for a raw connection.for client ,there is o
fec_encode_manager_t fec_encode_manager;
fec_decode_manager_t fec_decode_manager;
my_timer_t timer;
ip_port_t ip_port;
//ip_port_t ip_port;
u64_t last_active_time;
stat_t stat;
conn_info_t()

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@@ -11,9 +11,21 @@
![image0](/images/Capture2.PNG)
另外可以和udp2raw串联使用在加速的同时把UDP伪装成TCP防止UDP被运营商QOS或屏蔽。udp2raw: https://github.com/wangyu-/udp2raw-tunnel
对于某些运营商UDPspeeder跟udp2raw配合可以达到更好的速度udp2raw负责把UDP伪装成TCP来绕过运营商的UDP限速。
udp2raw的repo:
https://github.com/wangyu-/udp2raw-tunnel
如果你嫌UDPspeeder+OpenVPN麻烦你可以尝试tinyFecVPN一个集成了UDPspeeder功能的VPN
tinyFecVPN的repo:
https://github.com/wangyu-/tinyFecVPN
#### 效果
![image0](/images/Capture8.PNG)
![image0](/images/cn/ping_compare_cn.PNG)
![image0](/images/cn/scp_compare.PNG)
#### 原理简介
@@ -39,11 +51,13 @@ client支持多个udp连接server也支持多个client
# 简明操作说明
### 环境要求
Linux主机可以是桌面版可以是android手机/平板可以是openwrt路由器也可以是树莓派。在windows和mac上配合虚拟机可以稳定使用speeder跑在Linux里其他应用照常跑在window里桥接模式测试可用可以使用[这个](https://github.com/wangyu-/udp2raw-tunnel/releases/download/20170918.0/lede-17.01.2-x86_virtual_machine_image_with_udp2raw_pre_installed.zip)虚拟机镜像大小只有7.5mb免去在虚拟机里装系统的麻烦虚拟机自带ssh server可以scp拷贝文件可以ssh进去可以复制粘贴root密码123456。
Linux主机可以是桌面版可以是android手机/平板可以是openwrt路由器也可以是树莓派。
对于windows和mac用户在虚拟机中可以稳定使用speeder跑在Linux里其他应用照常跑在window里桥接模式测试可用。可以使用[这个](https://github.com/wangyu-/udp2raw-tunnel/releases/download/20171108.0/lede-17.01.2-x86_virtual_machine_image.zip)虚拟机镜像大小只有7.5mb免去在虚拟机里装系统的麻烦虚拟机自带ssh server可以scp拷贝文件可以ssh进去可以复制粘贴root密码123456。
android版需要通过terminal运行。
###### 注意
##### 注意
在使用虚拟机时,建议手动指定桥接到哪个网卡,不要设置成自动。否则可能会桥接到错误的网卡。
### 安装
@@ -55,26 +69,25 @@ https://github.com/wangyu-/UDPspeeder/releases
假设你有一个serverip为44.55.66.77有一个服务监听在udp 7777端口。 假设你需要加速本地到44.55.66.77:7777的流量。
```
在server端运行:
./speederv2 -s -l0.0.0.0:4096 -r127.0.0.1:7777 -f20:10 -k "passwd"
./speederv2 -s -l0.0.0.0:4096 -r127.0.0.1:7777 -f20:10 -k "passwd" --mode 0
在client端运行:
./speederv2 -c -l0.0.0.0:3333 -r44.55.66.77:4096 -f20:10 -k "passwd"
./speederv2 -c -l0.0.0.0:3333 -r44.55.66.77:4096 -f20:10 -k "passwd" --mode 0
```
现在client和server之间建立起了tunnel。想要连接44.55.66.77:7777只需要连接 127.0.0.1:3333。来回的所有的udp流量会被加速。
###### 备注:
##### 备注:
`-f20:10` 表示对每20个原始数据发送10个冗余包。`-f20:10``-f 20:10`都是可以的空格可以省略对于所有的单字节option都是如此。对于双字节option例如后面的`--mode 0``--mtu 1200`,空格不可以省略。
`-f20:10`表示对每20个原始数据发送10个冗余包。`-f20:10``-f 20:10`都是可以的空格可以省略对于所有的单字节option都是如此。对于双字节option例如后面会提到`--mode 0`,空格不可以省略。
`-k` 指定一个字符串,server/client间所有收发的包都会被异或改变协议特征防止UDPspeeder的协议被运营商针对。
`-k` 指定一个字符串,开启简单的异或加密
推荐使用`--mode 0`选项否则你可能需要考虑MTU问题。
###### 注意
##### 注意
要为UDPspeeder加速的应用设置好MTU(不是在UDPspeeder中是在被加速的应用中)建议设置为1200。
另外如果被加速的应用不能调整MTU也可以在UDPspeeder中通过`--mode 0 --mtu 1200`设置MTU。关于`--mode 0``--mtu`的具体含义请看下文。
这里推荐的参数是给日常/非游戏情况下使用的;玩游戏请用 [使用经验](https://github.com/wangyu-/UDPspeeder/wiki/使用经验) 里推荐的参数。
# 进阶操作说明
@@ -129,27 +142,20 @@ log and help options:
##### `-f` 选项
设置fec参数影响数据的冗余度。
##### `--timeout` 选项
指定fec编码器在编码时候最多可以引入多大的延迟。越高fec越有效率加速游戏时调低可以降低延迟。
指定fec编码器在编码时候最多可以引入多大的延迟。越高fec越有效率调低可以降低延迟,但是会牺牲效率
##### `--mode` 选项 和 `--mtu`选项
fec编码器的工作模式。对于mode 0编码器会积攒一定数量的packet然后把他们合并再切成等长的片段切分长度由--mtu指定。对于mode 1编码器不会做任何切分而是会把packet按最大长度对齐fec冗余包的长度为对齐后的长度最大长度
mode 0更省流量在丢包率正常的情况下效果和mode 1是一样的mode 1延迟更低在极高丢包的情况下表现更好
简单来说`--mode 0`更省流量,没有mtu问题`--mode 1`可以稍微降低一点延迟需要考虑mtu另外还有个`--mode 0 -q1`模式多倍发包专用没有延迟也没有mtu问题适合游戏但是最耗流量
mode 0使用起来可以不用关注mtu因为fec编码器会帮你把包切分到合理的大小用mode 1时必须合理设置上层应用的mtu。mode 0模式中--mtu选项决定切分的片段的长度mode 1模式中--mtu选项只起检查作用如果超过了--mtu指定的值数据包会被丢弃。
具体见https://github.com/wangyu-/UDPspeeder/wiki/mode和mtu选项
mode 0模式的流量消耗基本完全透明。mode 1因为涉及到数据按最大长度对齐所以流量消耗不是完全可预期。不过就实际使用来看mode 1消耗的额外流量不多
mode 0模式数据包一般不会乱序除非网络本身有严重乱序mode 1模式被恢复的数据包可能会乱序不过UDP本来就允许乱序对绝大多数应用没有影响。mode 0模式反而可以纠正一些乱序情况。
mode 0模式允许你发送的数据包大小超过物理接口的MTU而几乎不引起性能损失而普通的ip分片做不到这点目前最高支持到2000字节2000字节已经可以应对任何应用了因为一般网络的MTU只有1400多。之所以支持到2000字节是为了省程序内部开的静态buff(静态buff避免malloc提高性能)如果你是开发者通过重新编译支持到UDP协议的极限(
65507字节)也没问题。
对于新手,建议不要纠结这些参数的具体含义,就用我在`使用经验`里推荐的设置,不要乱改参数,尤其是不要改`--mtu`
##### `--report`  选项
数据发送和接受报告。开启后可以根据此数据推测出包速和丢包率等特征。
数据发送和接受报告。开启后可以根据此数据推测出包速和丢包率等特征。`--report 10`表示每10秒生成一次报告。
##### `-i` 选项
指定一个时间窗口长度为n毫秒。同一个fec分组的数据在发送时候会被均匀分散到这n毫秒中。可以对抗突发性的丢包。默认值是0因为这个功能需要用到时钟在某些虚拟机里时钟不稳定可能会导致个别包出现非常大的延迟所以默认关掉了。这个功能很有用默认参数效果不理想时可以尝试打开。这个选项的跟通信原理上常说的`交错fec` `交织fec`的原理是差不多的。
指定一个时间窗口长度为n毫秒。同一个fec分组的数据在发送时候会被均匀分散到这n毫秒中。可以对抗突发性的丢包。默认值是0因为这个功能需要用到时钟在某些虚拟机里时钟不稳定可能会导致个别包出现非常大的延迟所以默认关掉了。这个功能很有用默认参数效果不理想时可以尝试打开,比如用`-i 10`。这个选项的跟通信原理上常说的`交错fec` `交织fec`的原理是差不多的。
##### `-j` 选项
为原始数据的发送增加一个延迟抖动值。这样上层应用计算出来的RTT方差会更大以等待后续冗余包的到达不至于发生在冗余包到达之前就触发重传的尴尬。配合-t选项使用。正常情况下跨国网络本身的延迟抖动就很大可以不用设-j。这个功能也需要时钟默认关掉了不过一般情况应该不需要这个功能。
@@ -159,14 +165,15 @@ mode 0模式允许你发送的数据包大小超过物理接口的MTU而几乎
##### `--random-drop` 选项
随机丢包。模拟高丢包的网络环境时使用。 `--random-drop``-j`选项一起用可以模拟高延迟或者高延迟抖动高丢包的网络可用于测试FEC参数在各种网络环境下的表现。
##### `-k`选项
指定一个字符串server/client间所有收发的包都会被异或改变协议特征防止UDPspeeder的协议被运营商针对。
##### `-q` 选项
仅对mode 0模式有用。设置fec编码器的最大队列长度。 比如`-q5`的意思是在编码器积攒了5个数据包后就立即发送。合理使用可以改善延迟。在下文的`使用经验`里有提到用`--mode 0 -q1` 来多倍发包。
##### `--disable-obscure`
UDPspeeder默认情况下会对每个发出的数据包随机填充和异或一些字节(4~32字节)这样通过抓包难以发现你发了冗余数据防止VPS被封。这个功能只是为了小心谨慎即使你关掉这个功能基本上也没问题关掉可以省一些带宽和CPU。
`-q``--timeout`的作用类似。`-q`决定fec编码器积攒了多少个数据包之后立即发送。`--timeout`决定编码器收到第一个数据包以后,最多延迟多少毫秒后发送。
默认值是200也就是尽可能多得积攒数据。
建议不要自己调整这个参数,除非是用我在`使用经验`里推荐给你的形式。
##### `-q,--queue-len`
编码器在做FEC前最多积攒多少个数据包只对mode 0有效。除非是使用下文`V2版如何多倍发包`里面提到的用法,不建议改动。
#### `--fifo` option
用fifo(命名管道)向运行中的程序发送command。例如`--fifo fifo.file`可用的command有
```
@@ -178,89 +185,35 @@ echo mode 0 > fifo.file
```
可以动态改变fec编码器参数。可以从程序的log里看到command是否发送成功。
### 以下设置两端必须相同。
##### `-k`选项
指定一个字符串server/client间所有收发的包都会被异或改变协议特征防止UDPspeeder的协议被运营商针对。
##### `--disable-obscure`
UDPspeeder默认情况下会对每个发出的数据包随机填充和异或一些字节(4~32字节)这样通过抓包难以发现你发了冗余数据防止VPS被封。这个功能只是为了小心谨慎即使你关掉这个功能基本上也没问题关掉可以省一些带宽和CPU。`--disable-obscure`可以关掉这个功能。
# 使用经验
### 在FEC和多倍发包之间如何选择
对于游戏游戏的流量本身不大延迟很重要多倍发包是最佳解决方案多倍发包不会引入额外的延迟。FEC编码器需要先积攒一些数据才可以做FEC延迟无法避免对于多倍发包没有这个问题所以没有延迟。
对于其他日常应用延迟要求一般在合理配置的情况下FEC的效果肯定好过多倍发包。不过需要根据网络的最大丢包来配置FEC参数才能有稳定的效果。如果配置不当对于--mode 1可能会完全没有效果对于--mode 0可能效果会比不用UDPspeeder还差。
对于游戏以外的应用推荐使用FEC。但是如果FEC版的默认参数在你那边效果很差而你又不会调可以先用多倍发包。
### V2版如何多倍发包
只要在设置-f参数时把x设置为1fec算法就退化为多倍发包了。例如-f1:1表示2倍发包-f1:2表示3倍发包以此类推。另外可以加上`--mode 0 -q1`参数防止fec编码器试图积攒和合并数据获得最低的延迟。
2倍发包的完整参数
```
./speederv2 -s -l0.0.0.0:4096 -r127.0.0.1:7777 -f1:1 -k "passwd" --mode 0 -q1
./speederv2 -c -l0.0.0.0:3333 -r44.55.66.77:4096 -f1:1 -k "passwd" --mode 0 -q1
```
使用了`--mode 0 -q1`以后,`--timeout`选项不起作用,所以不用调。
如果你只需要多倍发包可以直接用回V1版V1版配置更简单占用内存更小而且经过了几个月的考验很稳定。
### 根据网络丢包合理设置FEC参数
默认的FEC参数为-f20:10对每20个包额外发送10个冗余包也就是1.5倍发包。已经可以适应绝大多数的网络情况了对于10%的网络丢包可以降低到0.01%以下对于20%的网络丢包可以降低到2.5%。
如果你的网络丢包很低比如在3%以下,可以尝试调低参数。比如-f20:5也就是1.2倍发包这个参数已经足够把3%的丢包降低到0.01%以下了。
如果网络丢包超过20%,需要把-f20:10调大。
如果你实在不会配那么也可以用回V1版。
### 根据CPU处理能力来调整FEC参数
FEC算法很吃CPU初次使用建议关注UDPspeeder的CPU占用。如果CPU被打满可以在冗余度不变的情况下把FEC分组大小调小否则的话效果可能很差。
比如-f20:10和-f10:5都是1.5倍的冗余度,而-f20:10的FEC分组大小是30个包-f10:5的FEC分组大小是15个包。-f20:10更费CPU但是在一般情况下效果更稳定。把分组调小可以节省CPU。
另外fec分组大小不宜过大否则不但很耗CPU还有其他副作用建议x+y<50
### 改变FEC参数而不断线
`--fifo`选项可以在运行时改变FEC参数无需重启程序也不会断线如果你在使用过程中发现网络丢包突然变高可以动态地把冗余度调大反之也一样如果网络变好了把冗余度调小节省流量一切都是无缝进行不会断线也不会因为改FEC参数导致额外的丢包
### 为什么使用之后效果反而变差了?
有可能是你用了mode 0参数而又没调好参数
如果你没有使用mode 0而确实效果变差了那很可能是因为你的运营商对UDP有限制一般看视频和下载都是TCP流量而用UDPspeeder中转后流量变成了UDP流量如果运营商对UDP做了限制就可能导致效果比不用还差用udp2raw可以解决udp2raw: https://github.com/wangyu-/udp2raw-tunnel
### UDPspeeder和BBR/锐速配合
UDPspeeder和BBR/锐速可以配合使用UDPspeeder工作在IP层负责降低丢包率BBR/锐速工作在TCP层负责优化拥塞和重传这种情况下可以调低UDPspeeder的冗余度能把丢包率降低到5%以内就可以了剩下的交给BBR/锐速解决这样预计可以节省一些流量如果是UDPspeeder跟Linux默认的Cubic一起用最少也要把丢包率降低到1%以下才能流畅使用TCP
对下文的`UDPspeeder + openvpn``UDPspeeder + openvpn + $***`方法有效不过有一点区别具体见下文
### UDPspeeder和Kcptun配合
UDPspeeder和Kcptun配合UDPspeeder和Kcptun可以并联也可以串联
并联的情况下让kcptun负责加速TCPUDPspeeder负责加速UDP见下文的`UDPspeeder + kcptun + $*** 同时加速tcp和udp流量`
串联的情况UDPspeeder的FEC跟Kcptun自带的相比可以对两个方向设置不同的FEC参数有一个更省流量的mode 0模式可以动态改变FEC参数但是UDPspeeder本身不优化拥塞和重传算法所以UDPspeeder和Kcptun也可以配合使用结合两者的优点
串联时可以关掉Kcptun的FEC让UDPspeeder接管FEC功能这样UDPspeeder工作在UDP层负责降低丢包率Kcptun工作在应用层用kcp算法负责优化拥塞和重传能起到和`UDPspeeder+BBR/锐速`类似的效果
如果发Issue问Kcptun+UDPspeeder相关的问题一定要说明是并联还是串联
https://github.com/wangyu-/UDPspeeder/wiki/使用经验
# 应用
#### UDPspeeder + OpenVPN加速任何流量也适用于其他VPN
![image0](/images/Capture2.PNG)
具体配置见[UDPspeeder + openvpn config guide](/doc/udpspeeder_openvpn.md).
可以和BBR/锐速叠加不过BBR/锐速部署在VPS上只对从本地到VPS的流量有效对从本地到第三方服务器的流量无效
可以和BBR/锐速叠加不过BBR/锐速部署在VPS上只对本地和VPS间的流量有效对从本地和第三方服务器间的流量无效。
需要在服务端开启ipforward和NAT。在客户端改路由表可以手动修改也可以由OpenVPN的redirect-gateway选项自动加好
Linux具体配置: [UDPspeeder + openvpn config guide](/doc/udpspeeder_openvpn.md).
Windows具体配置: [win10系统UDPspeeder+OpenVPN的完整设置](https://github.com/wangyu-/UDPspeeder/wiki/win10系统UDPspeeder-OpenVPN的完整设置)
如果UDPspeeder + OpenVPN对你来说显得太麻烦了你可以尝试一下tinyFecVPN,一个集成了UDPspeeder功能的VPN:
https://github.com/wangyu-/tinyFecVPN/
#### UDPspeeder + kcptun/finalspeed + $*** 同时加速tcp和udp流量
如果你需要用加速的tcp看视频和下载文件这样效果可能比没有BBR的UDPspeeder+vpn方案更好。另外如果你需要玩游戏但是嫌配VPN麻烦也可以用这种方案。
![image0](/images/cn/speeder_kcptun.PNG)
@@ -281,9 +234,9 @@ run at client side:
这就是全部的命令了。issue里有很多人困惑于怎么把tcp和udp流量"分开",其实很简单就可以做到。
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
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)。
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
#### 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。
@@ -295,6 +248,20 @@ run at client side:
可以和BBR/锐速叠加BBR/锐速只要部署在VPS上就有效。
也可以用[tinyFecVPN](https://github.com/wangyu-/tinyFecVPN/) + $\*\*\* ,配置起来更简单。
# 应用实例
#### win10系统UDPspeeder+OpenVPN的完整设置
https://github.com/wangyu-/UDPspeeder/wiki/win10系统UDPspeeder-OpenVPN的完整设置
#### 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。

View File

@@ -100,3 +100,8 @@ or
ip route add 44.55.66.77 dev XXX
```
(run at client side)
##### Other Info
You can also use tinyFecVPN,a lightweight VPN with build-in FEC support:
https://github.com/wangyu-/tinyFecVPN

View File

@@ -146,11 +146,11 @@ fec_encode_manager_t::fec_encode_manager_t()
}
timer_fd64=fd_manager.create(timer_fd);
re_init(fec_data_num,fec_redundant_num,fec_mtu,fec_queue_len,fec_timeout,fec_mode);
reset_fec_parameter(g_fec_data_num,g_fec_redundant_num,g_fec_mtu,g_fec_queue_len,g_fec_timeout,g_fec_mode);
seq=(u32_t)get_true_random_number(); //TODO temp solution for a bug.
}
int fec_encode_manager_t::re_init(int data_num,int redundant_num,int mtu,int queue_len,int timeout,int mode)
int fec_encode_manager_t::reset_fec_parameter(int data_num,int redundant_num,int mtu,int queue_len,int timeout,int mode)
{
fec_data_num=data_num;
fec_redundant_num=redundant_num;
@@ -160,15 +160,8 @@ int fec_encode_manager_t::re_init(int data_num,int redundant_num,int mtu,int que
fec_mode=mode;
assert(data_num+redundant_num<max_fec_packet_num);
counter=0;
blob_encode.clear();
ready_for_output=0;
//seq=0;
itimerspec zero_its;
memset(&zero_its, 0, sizeof(zero_its));
timerfd_settime(timer_fd, TFD_TIMER_ABSTIME, &zero_its, 0);
clear();
return 0;
}
@@ -192,7 +185,7 @@ int fec_encode_manager_t::append(char *s,int len/*,int &is_first_packet*/)
{
mylog(log_trace,"counter=%d\n",counter);
assert(len<=65535&&len>=0);
assert(len<=fec_mtu);
//assert(len<=fec_mtu);//relax this limitation
char * p=input_buf[counter]+sizeof(u32_t)+4*sizeof(char);//copy directly to final position,avoid unnecessary copy.
//remember to change this,if protocol is modified
@@ -225,15 +218,19 @@ int fec_encode_manager_t::input(char *s,int len/*,int &is_first_packet*/)
//int counter_back=counter;
assert(fec_mode==0||fec_mode==1);
if(fec_mode==0&& s!=0 &&counter==0&&blob_encode.get_shard_len(fec_data_num,len)>=fec_mtu)
if(fec_mode==0&& s!=0 &&counter==0)
{
mylog(log_warn,"message too long len=%d,ignored\n",len);
return -1;
int out_len=blob_encode.get_shard_len(fec_data_num,len);
if(out_len>fec_mtu)
{
mylog(log_warn,"message too long ori_len=%d out_len=%d fec_mtu=%d,ignored\n",len,out_len,fec_mtu);
return -1;
}
}
if(fec_mode==1&&s!=0&&len>=fec_mtu)
if(fec_mode==1&&s!=0&&len>fec_mtu)
{
mylog(log_warn,"message too long len=%d fec_mtu=%d,ignored\n",len,fec_mtu);
return -1;
mylog(log_warn,"mode==1,message len=%d,len>fec_mtu,fec_mtu=%d,packet may not be delivered\n",len,fec_mtu);
//return -1;
}
if(s==0&&counter==0)
{
@@ -242,7 +239,7 @@ int fec_encode_manager_t::input(char *s,int len/*,int &is_first_packet*/)
}
if(s==0) about_to_fec=1;//now
if(fec_mode==0&& blob_encode.get_shard_len(fec_data_num,len)>=fec_mtu) {about_to_fec=1; delayed_append=1;}//fec then add packet
if(fec_mode==0&& blob_encode.get_shard_len(fec_data_num,len)>fec_mtu) {about_to_fec=1; delayed_append=1;}//fec then add packet
if(fec_mode==0) assert(counter<fec_queue_len);//counter will never equal fec_pending_num,if that happens fec should already been done.
if(fec_mode==1) assert(counter<fec_data_num);
@@ -285,7 +282,10 @@ int fec_encode_manager_t::input(char *s,int len/*,int &is_first_packet*/)
int best_data_num=fec_data_num;
for(int i=1;i<actual_data_num;i++)
{
u32_t new_len=(blob_encode.get_shard_len(i,0)+header_overhead)*(i+fec_redundant_num);
u32_t shard_len=blob_encode.get_shard_len(i,0);
if(shard_len>(u32_t)fec_mtu) continue;
u32_t new_len=(shard_len+header_overhead)*(i+fec_redundant_num);
if(new_len<best_len)
{
best_len=new_len;
@@ -489,15 +489,12 @@ int fec_encode_manager_t::output(int &n,char ** &s_arr,int *&len)
}
return 0;
}
/*
int fec_decode_manager_t::re_init()
{
for(int i=0;i<(int)fec_buff_num;i++)
fec_data[i].used=0;
ready_for_output=0;
index=0;
clear();
return 0;
}
}*/
int fec_decode_manager_t::input(char *s,int len)
{

View File

@@ -37,10 +37,16 @@ struct anti_replay_t
unordered_set<u32_t> st;
int index;
anti_replay_t()
{
clear();
}
int clear()
{
memset(replay_buffer,-1,sizeof(replay_buffer));
st.clear();
st.rehash(anti_replay_buff_size*3);
index=0;
return 0;
}
void set_invaild(u32_t seq)
{
@@ -140,6 +146,22 @@ public:
fec_encode_manager_t();
~fec_encode_manager_t();
int clear()
{
counter=0;
blob_encode.clear();
ready_for_output=0;
itimerspec zero_its;
memset(&zero_its, 0, sizeof(zero_its));
timerfd_settime(timer_fd, TFD_TIMER_ABSTIME, &zero_its, 0);
seq=(u32_t)get_true_random_number(); //TODO temp solution for a bug.
return 0;
}
my_time_t get_first_packet_time()
{
return first_packet_time_for_output;
@@ -155,7 +177,7 @@ public:
return fec_mode;
}
u64_t get_timer_fd64();
int re_init(int data_num,int redundant_num,int mtu,int pending_num,int pending_time,int type);
int reset_fec_parameter(int data_num,int redundant_num,int mtu,int pending_num,int pending_time,int type);
int input(char *s,int len/*,int &is_first_packet*/);
int output(int &n,char ** &s_arr,int *&len);
};
@@ -200,7 +222,7 @@ public:
fec_decode_manager_t()
{
fec_data=new fec_data_t[fec_buff_num+5];
re_init();
clear();
}
fec_decode_manager_t(const fec_decode_manager_t &b)
{
@@ -210,7 +232,21 @@ public:
{
delete fec_data;
}
int re_init();
int clear()
{
anti_replay.clear();
mp.clear();
mp.rehash(fec_buff_num*3);
for(int i=0;i<(int)fec_buff_num;i++)
fec_data[i].used=0;
ready_for_output=0;
index=0;
return 0;
}
//int re_init();
int input(char *s,int len);
int output(int &n,char ** &s_arr,int* &len_arr);
};

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After

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104
main.cpp
View File

@@ -9,10 +9,70 @@
#include "fec_manager.h"
#include "misc.h"
#include "tunnel.h"
#include "tun_dev.h"
//#include "tun_dev.h"
#include "git_version.h"
using namespace std;
static void print_help()
{
char git_version_buf[100]={0};
strncpy(git_version_buf,gitversion,10);
printf("UDPspeeder V2\n");
printf("git version: %s ",git_version_buf);
printf("build date: %s %s\n",__DATE__,__TIME__);
printf("repository: https://github.com/wangyu-/UDPspeeder\n");
printf("\n");
printf("usage:\n");
printf(" run as client: ./this_program -c -l local_listen_ip:local_port -r server_ip:server_port [options]\n");
printf(" run as server: ./this_program -s -l server_listen_ip:server_port -r remote_ip:remote_port [options]\n");
printf("\n");
printf("common options, must be same on both sides:\n");
printf(" -k,--key <string> key for simple xor encryption. if not set, xor is disabled\n");
printf("main options:\n");
printf(" -f,--fec x:y forward error correction, send y redundant packets for every x packets\n");
printf(" --timeout <number> how long could a packet be held in queue before doing fec, unit: ms, default: 8ms\n");
printf(" --mode <number> fec-mode,available values: 0, 1; 0 cost less bandwidth, 1 cost less latency(default)\n");
printf(" --report <number> turn on send/recv report, and set a period for reporting, unit: s\n");
printf("advanced options:\n");
printf(" --mtu <number> mtu. for mode 0, the program will split packet to segment smaller than mtu_value.\n");
printf(" for mode 1, no packet will be split, the program just check if the mtu is exceed.\n");
printf(" default value: 1250\n");
printf(" -j,--jitter <number> simulated jitter. randomly delay first packet for 0~<number> ms, default value: 0.\n");
printf(" do not use if you dont know what it means.\n");
printf(" -i,--interval <number> scatter each fec group to a interval of <number> ms, to protect burst packet loss.\n");
printf(" default value: 0. do not use if you dont know what it means.\n");
printf(" --random-drop <number> simulate packet loss, unit: 0.01%%. default value: 0\n");
printf(" --disable-obscure <number> disable obscure, to save a bit bandwidth and cpu\n");
// printf(" --disable-xor <number> disable xor\n");
printf("developer options:\n");
printf(" --fifo <string> use a fifo(named pipe) for sending commands to the running program, so that you\n");
printf(" can change fec encode parameters dynamically, check readme.md in repository for\n");
printf(" supported commands.\n");
printf(" -j ,--jitter jmin:jmax similiar to -j above, but create jitter randomly between jmin and jmax\n");
printf(" -i,--interval imin:imax similiar to -i above, but scatter randomly between imin and imax\n");
printf(" -q,--queue-len <number> max fec queue len, only for mode 0\n");
printf(" --decode-buf <number> size of buffer of fec decoder,u nit: packet, default: 2000\n");
printf(" --fix-latency <number> try to stabilize latency, only for mode 0\n");
printf(" --delay-capacity <number> max number of delayed packets\n");
printf(" --disable-fec <number> completely disable fec, turn the program into a normal udp tunnel\n");
printf(" --sock-buf <number> buf size for socket, >=10 and <=10240, unit: kbyte, default: 1024\n");
printf("log and help options:\n");
printf(" --log-level <number> 0: never 1: fatal 2: error 3: warn \n");
printf(" 4: info (default) 5: debug 6: trace\n");
printf(" --log-position enable file name, function name, line number in log\n");
printf(" --disable-color disable log color\n");
printf(" -h,--help print this help message\n");
//printf("common options,these options must be same on both side\n");
}
int main(int argc, char *argv[])
{
//working_mode=tunnel_mode;
@@ -25,33 +85,41 @@ int main(int argc, char *argv[])
assert(sizeof(i16_t)==2);
dup2(1, 2); //redirect stderr to stdout
int i, j, k;
if (argc == 1)
{
print_help();
myexit( -1);
}
for (i = 0; i < argc; i++)
{
if(strcmp(argv[i],"-h")==0||strcmp(argv[i],"--help")==0)
{
print_help();
myexit(0);
}
}
process_arg(argc,argv);
delay_manager.set_capacity(delay_capacity);
local_ip_uint32=inet_addr(local_ip);
remote_ip_uint32=inet_addr(remote_ip);
sub_net_uint32=inet_addr(sub_net);
if(working_mode==tunnel_mode)
if(strlen(tun_dev)==0)
{
if(client_or_server==client_mode)
{
tunnel_client_event_loop();
}
else
{
tunnel_server_event_loop();
}
sprintf(tun_dev,"tun%u",get_true_random_number()%1000);
}
if(client_or_server==client_mode)
{
tunnel_client_event_loop();
}
else
{
if(client_or_server==client_mode)
{
tun_dev_client_event_loop();
}
else
{
tun_dev_server_event_loop();
}
tunnel_server_event_loop();
}
return 0;

View File

@@ -8,12 +8,12 @@ cc_arm= /toolchains/arm-2014.05/bin/arm-none-linux-gnueabi-g++
#cc_bcm2708=/home/wangyu/raspberry/tools/arm-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian/bin/arm-linux-gnueabihf-g++
FLAGS= -std=c++11 -Wall -Wextra -Wno-unused-variable -Wno-unused-parameter -Wno-missing-field-initializers -ggdb
SOURCES=main.cpp log.cpp common.cpp lib/fec.c lib/rs.c packet.cpp delay_manager.cpp fd_manager.cpp connection.cpp fec_manager.cpp tun_dev.cpp misc.cpp tunnel.cpp
SOURCES=main.cpp log.cpp common.cpp lib/fec.c lib/rs.c packet.cpp delay_manager.cpp fd_manager.cpp connection.cpp fec_manager.cpp misc.cpp tunnel.cpp
NAME=speederv2
TARGETS=amd64 arm mips24kc_be x86 mips24kc_le
TAR=${NAME}_binaries.tar.gz `echo ${TARGETS}|sed -r 's/([^ ]+)/speederv2_\1/g'`
TAR=${NAME}_binaries.tar.gz `echo ${TARGETS}|sed -r 's/([^ ]+)/speederv2_\1/g'` version.txt
all:git_version
rm -f ${NAME}
@@ -56,6 +56,7 @@ cross3:git_version
${cc_cross} -o ${NAME}_cross -I. ${SOURCES} ${FLAGS} -lrt -static -O3
release: ${TARGETS}
cp git_version.h version.txt
tar -zcvf ${TAR}
clean:

135
misc.cpp
View File

@@ -40,8 +40,17 @@ int time_mono_test=0;
int delay_capacity=0;
char sub_net[100]="10.22.22.0";
u32_t sub_net_uint32=0;
char tun_dev[100]="";
int keep_reconnect=0;
int tun_mtu=1500;
int mssfix=1;
int from_normal_to_fec(conn_info_t & conn_info,char *data,int len,int & out_n,char **&out_arr,int *&out_len,my_time_t *&out_delay)
@@ -55,13 +64,17 @@ int from_normal_to_fec(conn_info_t & conn_info,char *data,int len,int & out_n,ch
inner_stat_t &inner_stat=conn_info.stat.normal_to_fec;
if(disable_fec)
{
assert(data!=0);
if(data==0)
{
out_n=0;
return 0;
}
//assert(data!=0);
inner_stat.input_packet_num++;
inner_stat.input_packet_size+=len;
inner_stat.output_packet_num++;
inner_stat.output_packet_size+=len;
if(data==0) return 0;
out_n=1;
static char *data_static;
data_static=data;
@@ -166,7 +179,11 @@ int from_fec_to_normal(conn_info_t & conn_info,char *data,int len,int & out_n,ch
inner_stat.output_packet_num++;
inner_stat.output_packet_size+=len;
if(data==0) return 0;
if(data==0)
{
out_n=0;
return 0;
}
out_n=1;
static char *data_static;
data_static=data;
@@ -472,7 +489,7 @@ int unit_test()
int * len;
fec_decode_manager.output(n,s_arr,len);
fec_encode_manager.re_init(3,2,g_fec_mtu,g_fec_queue_len,g_fec_timeout,1);
fec_encode_manager.reset_fec_parameter(3,2,g_fec_mtu,g_fec_queue_len,g_fec_timeout,1);
fec_encode_manager.input((char *) a.c_str(), a.length());
fec_encode_manager.output(n,s_arr,len);
@@ -554,15 +571,15 @@ void process_arg(int argc, char *argv[])
{"fec", required_argument, 0,'f'},
{"jitter", required_argument, 0,'j'},
{"fifo", required_argument, 0, 1},
{"tun-dev", optional_argument, 0, 1},
{"sub-net", required_argument, 0, 1},
{"tun-dev", required_argument, 0, 1},
{"tun-mtu", required_argument, 0, 1},
{"disable-mssfix", no_argument, 0, 1},
{"keep-reconnect", no_argument, 0, 1},
{NULL, 0, 0, 0}
};
int option_index = 0;
if (argc == 1)
{
print_help();
myexit( -1);
}
for (i = 0; i < argc; i++)
{
if(strcmp(argv[i],"--unit-test")==0)
@@ -571,14 +588,7 @@ void process_arg(int argc, char *argv[])
myexit(0);
}
}
for (i = 0; i < argc; i++)
{
if(strcmp(argv[i],"-h")==0||strcmp(argv[i],"--help")==0)
{
print_help();
myexit(0);
}
}
for (i = 0; i < argc; i++)
{
if(strcmp(argv[i],"--log-level")==0)
@@ -609,11 +619,6 @@ void process_arg(int argc, char *argv[])
}
log_bare(log_info, "\n");
if (argc == 1)
{
print_help();
myexit(-1);
}
int no_l = 1, no_r = 1;
while ((opt = getopt_long(argc, argv, "l:r:hcsk:j:f:p:n:i:q:",long_options,&option_index)) != -1)
@@ -872,12 +877,35 @@ void process_arg(int argc, char *argv[])
mylog(log_info,"fifo_file =%s \n",fifo_file);
}
else if(strcmp(long_options[option_index].name,"keep-reconnect")==0)
{
keep_reconnect=1;
mylog(log_info,"keep_reconnect enabled\n");
}
else if(strcmp(long_options[option_index].name,"sub-net")==0)
{
sscanf(optarg,"%s",sub_net);
mylog(log_info,"sub_net %s\n",sub_net);
}
else if(strcmp(long_options[option_index].name,"tun-dev")==0)
{
//sscanf(optarg,"%s",fifo_file);
mylog(log_info,"enabled tun-dev mode\n");
sscanf(optarg,"%s",tun_dev);
mylog(log_info,"tun_dev=%s\n",tun_dev);
mylog(log_info,"running at tun-dev mode\n");
working_mode=tun_dev_mode;
}
else if(strcmp(long_options[option_index].name,"tun-mtu")==0)
{
sscanf(optarg,"%d",&tun_mtu);
mylog(log_warn,"changed tun_mtu,tun_mtu=%d\n",tun_mtu);
}
else if(strcmp(long_options[option_index].name,"disable-mssfix")==0)
{
mssfix=0;
mylog(log_warn,"mssfix disabled\n");
}
else
{
mylog(log_fatal,"unknown option\n");
@@ -937,60 +965,3 @@ void process_arg(int argc, char *argv[])
}
void print_help()
{
char git_version_buf[100]={0};
strncpy(git_version_buf,gitversion,10);
printf("UDPspeeder V2\n");
printf("git version: %s ",git_version_buf);
printf("build date: %s %s\n",__DATE__,__TIME__);
printf("repository: https://github.com/wangyu-/UDPspeeder\n");
printf("\n");
printf("usage:\n");
printf(" run as client: ./this_program -c -l local_listen_ip:local_port -r server_ip:server_port [options]\n");
printf(" run as server: ./this_program -s -l server_listen_ip:server_port -r remote_ip:remote_port [options]\n");
printf("\n");
printf("common options, must be same on both sides:\n");
printf(" -k,--key <string> key for simple xor encryption. if not set, xor is disabled\n");
printf("main options:\n");
printf(" -f,--fec x:y forward error correction, send y redundant packets for every x packets\n");
printf(" --timeout <number> how long could a packet be held in queue before doing fec, unit: ms, default: 8ms\n");
printf(" --mode <number> fec-mode,available values: 0, 1; 0 cost less bandwidth, 1 cost less latency(default)\n");
printf(" --report <number> turn on send/recv report, and set a period for reporting, unit: s\n");
printf("advanced options:\n");
printf(" --mtu <number> mtu. for mode 0, the program will split packet to segment smaller than mtu_value.\n");
printf(" for mode 1, no packet will be split, the program just check if the mtu is exceed.\n");
printf(" default value: 1250\n");
printf(" -j,--jitter <number> simulated jitter. randomly delay first packet for 0~<number> ms, default value: 0.\n");
printf(" do not use if you dont know what it means.\n");
printf(" -i,--interval <number> scatter each fec group to a interval of <number> ms, to protect burst packet loss.\n");
printf(" default value: 0. do not use if you dont know what it means.\n");
printf(" --random-drop <number> simulate packet loss, unit: 0.01%%. default value: 0\n");
printf(" --disable-obscure <number> disable obscure, to save a bit bandwidth and cpu\n");
// printf(" --disable-xor <number> disable xor\n");
printf("developer options:\n");
printf(" --fifo <string> use a fifo(named pipe) for sending commands to the running program, so that you\n");
printf(" can change fec encode parameters dynamically, check readme.md in repository for\n");
printf(" supported commands.\n");
printf(" -j ,--jitter jmin:jmax similiar to -j above, but create jitter randomly between jmin and jmax\n");
printf(" -i,--interval imin:imax similiar to -i above, but scatter randomly between imin and imax\n");
printf(" -q,--queue-len <number> max fec queue len, only for mode 0\n");
printf(" --decode-buf <number> size of buffer of fec decoder,u nit: packet, default: 2000\n");
printf(" --fix-latency <number> try to stabilize latency, only for mode 0\n");
printf(" --delay-capacity <number> max number of delayed packets\n");
printf(" --disable-fec <number> completely disable fec, turn the program into a normal udp tunnel\n");
printf(" --sock-buf <number> buf size for socket, >=10 and <=10240, unit: kbyte, default: 1024\n");
printf("log and help options:\n");
printf(" --log-level <number> 0: never 1: fatal 2: error 3: warn \n");
printf(" 4: info (default) 5: debug 6: trace\n");
printf(" --log-position enable file name, function name, line number in log\n");
printf(" --disable-color disable log color\n");
printf(" -h,--help print this help message\n");
//printf("common options,these options must be same on both side\n");
}

11
misc.h
View File

@@ -13,7 +13,7 @@
#include "fd_manager.h"
#include "delay_manager.h"
#include "fec_manager.h"
#include "git_version.h"
extern char fifo_file[1000];
@@ -46,7 +46,11 @@ extern int time_mono_test;
extern int delay_capacity;
extern int keep_reconnect;
extern int tun_mtu;
extern int mssfix;
int from_normal_to_fec(conn_info_t & conn_info,char *data,int len,int & out_n,char **&out_arr,int *&out_len,my_time_t *&out_delay);
@@ -58,9 +62,12 @@ int handle_command(char *s);
int unit_test();
void print_help();
//void print_help();
void process_arg(int argc, char *argv[]);
extern char sub_net[100];
extern u32_t sub_net_uint32;
extern char tun_dev[100];
#endif /* MISC_H_ */

View File

@@ -177,9 +177,7 @@ int my_send(const dest_t &dest,char *data,int len)
{
if(dest.cook)
{
put_crc32(data,len);
if(!disable_obscure)do_obscure(data,len);
if(!disable_xor)encrypt_0(data,len,key_string);
do_cook(data,len);
}
switch(dest.type)
{
@@ -201,6 +199,11 @@ int my_send(const dest_t &dest,char *data,int len)
return send_fd(dest.inner.fd,data,len,0);
break;
}
case type_write_fd:
{
return write(dest.inner.fd,data,len);
break;
}
case type_fd64:
{
@@ -322,6 +325,14 @@ int put_crc32(char * s,int &len)
return 0;
}
int do_cook(char * data,int &len)
{
put_crc32(data,len);
if(!disable_obscure)do_obscure(data,len);
if(!disable_xor)encrypt_0(data,len,key_string);
return 0;
}
int de_cook(char * s,int &len)
{
if(!disable_xor)decrypt_0(s,len,key_string);

View File

@@ -42,5 +42,6 @@ int put_conv(u32_t conv,const char * input,int len_in,char *&output,int &len_out
int get_conv(u32_t &conv,const char *input,int len_in,char *&output,int &len_out );
int put_crc32(char * s,int &len);
int rm_crc32(char * s,int &len);
int do_cook(char * data,int &len);
int de_cook(char * s,int &len);
#endif /* PACKET_H_ */

View File

@@ -1,411 +0,0 @@
/*
* tun.cpp
*
* Created on: Oct 26, 2017
* Author: root
*/
#include "common.h"
#include "log.h"
#include "misc.h"
int get_tun_fd(char * dev_name)
{
int tun_fd=open("/dev/net/tun",O_RDWR);
if(tun_fd <0)
{
mylog(log_fatal,"open /dev/net/tun failed");
myexit(-1);
}
struct ifreq ifr;
memset(&ifr, 0, sizeof(ifr));
ifr.ifr_flags = IFF_TUN|IFF_NO_PI;
strncpy(ifr.ifr_name, dev_name, IFNAMSIZ);
if(ioctl(tun_fd, TUNSETIFF, (void *)&ifr) != 0)
{
mylog(log_fatal,"open /dev/net/tun failed");
myexit(-1);
}
return tun_fd;
}
int set_if(char *if_name,char * local_ip,char * remote_ip,int mtu)
{
//printf("i m here1\n");
struct ifreq ifr;
struct sockaddr_in sai;
memset(&ifr,0,sizeof(ifr));
memset(&sai, 0, sizeof(struct sockaddr));
int sockfd = socket(AF_INET, SOCK_DGRAM, 0);
strncpy(ifr.ifr_name, if_name, IFNAMSIZ);
sai.sin_family = AF_INET;
sai.sin_port = 0;
sai.sin_addr.s_addr = inet_addr(local_ip);
memcpy(&ifr.ifr_addr,&sai, sizeof(struct sockaddr));
assert(ioctl(sockfd, SIOCSIFADDR, &ifr)==0);
sai.sin_addr.s_addr = inet_addr(local_ip);
memcpy(&ifr.ifr_addr,&sai, sizeof(struct sockaddr));
assert(ioctl(sockfd, SIOCSIFADDR, &ifr)==0);
sai.sin_addr.s_addr = inet_addr(remote_ip);
memcpy(&ifr.ifr_addr,&sai, sizeof(struct sockaddr));
assert(ioctl(sockfd, SIOCSIFDSTADDR, &ifr)==0);
ifr.ifr_mtu=mtu;
assert(ioctl(sockfd, SIOCSIFMTU, &ifr)==0);
assert(ioctl(sockfd, SIOCGIFFLAGS, &ifr)==0);
// ifr.ifr_flags |= ( IFF_UP|IFF_POINTOPOINT|IFF_RUNNING|IFF_NOARP|IFF_MULTICAST );
ifr.ifr_flags |= ( IFF_UP|IFF_POINTOPOINT|IFF_RUNNING|IFF_NOARP|IFF_MULTICAST );
assert(ioctl(sockfd, SIOCSIFFLAGS, &ifr)==0);
//printf("i m here2\n");
return 0;
}
//enum tun_header_t {header_reserved=0,header_normal=1,header_new=2,header_reject=3};
const char header_normal=1;
const char header_new_connect=2;
const char header_reject=3;
int put_header(char header,char *& data,int &len)
{
assert(len>=0);
data=data-1;
data[0]=header;
len+=1;
return 0;
}
int get_header(char &header,char *& data,int &len)
{
assert(len>=0);
if(len<1) return -1;
header=data[0];
data=data+1;
len-=1;
return 0;
}
int tun_dev_client_event_loop()
{
char buf0[buf_len+100];
char *data=buf0+100;
int len;
int i,j,k,ret;
int epoll_fd,tun_fd;
int remote_fd;
fd64_t remote_fd64;
tun_fd=get_tun_fd("tun11");
assert(tun_fd>0);
assert(new_connected_socket(remote_fd,remote_ip_uint32,remote_port)==0);
remote_fd64=fd_manager.create(remote_fd);
assert(set_if("tun11","10.0.0.2","10.0.0.1",1000)==0);
epoll_fd = epoll_create1(0);
assert(epoll_fd>0);
const int max_events = 4096;
struct epoll_event ev, events[max_events];
if (epoll_fd < 0) {
mylog(log_fatal,"epoll return %d\n", epoll_fd);
myexit(-1);
}
ev.events = EPOLLIN;
ev.data.u64 = remote_fd64;
ret = epoll_ctl(epoll_fd, EPOLL_CTL_ADD, remote_fd, &ev);
if (ret!=0) {
mylog(log_fatal,"add remote_fd64 error\n");
myexit(-1);
}
ev.events = EPOLLIN;
ev.data.u64 = tun_fd;
ret = epoll_ctl(epoll_fd, EPOLL_CTL_ADD, tun_fd, &ev);
if (ret!=0) {
mylog(log_fatal,"add tun_fd error\n");
myexit(-1);
}
dest_t dest;
dest.type=type_fd64;
dest.inner.fd64=remote_fd64;
//dest.conv=conv;
//dest.inner.ip_port=dest_ip_port;
//dest.cook=1;
int got_feed_back=0;
while(1)////////////////////////
{
if(about_to_exit) myexit(0);
int nfds = epoll_wait(epoll_fd, events, max_events, 180 * 1000);
if (nfds < 0) { //allow zero
if(errno==EINTR )
{
mylog(log_info,"epoll interrupted by signal\n");
myexit(0);
}
else
{
mylog(log_fatal,"epoll_wait return %d\n", nfds);
myexit(-1);
}
}
int idx;
for (idx = 0; idx < nfds; ++idx)
{
if(events[idx].data.u64==(u64_t)tun_fd)
{
len=read(tun_fd,data,max_data_len);
assert(len>=0);
mylog(log_trace,"Received packet from tun,len: %d\n",len);
if(got_feed_back==0)
put_header(header_new_connect,data,len);
else
put_header(header_normal,data,len);
delay_manager.add(0,dest,data,len);;
}
else if(events[idx].data.u64==(u64_t)remote_fd64)
{
fd64_t fd64=events[idx].data.u64;
int fd=fd_manager.to_fd(fd64);
len=recv(fd,data,max_data_len,0);
if(len<0)
{
mylog(log_warn,"recv return %d,errno=%s\n",len,strerror(errno));
continue;
}
char header=0;
if(get_header(header,data,len)!=0)
{
mylog(log_warn,"get_header failed\n");
continue;
}
if(header==header_reject)
{
mylog(log_fatal,"server switched to handle another client,exit\n");
myexit(-1);
continue;
}
else if(header==header_normal)
{
got_feed_back=1;
}
else
{
mylog(log_warn,"invalid header\n");
continue;
}
mylog(log_trace,"Received packet from udp,len: %d\n",len);
assert(len>=0);
assert(write(tun_fd,data,len)>=0);
}
}
delay_manager.check();
}
return 0;
}
int tun_dev_server_event_loop()
{
char buf0[buf_len+100];
char *data=buf0+100;
int len;
int i,j,k,ret;
int epoll_fd,tun_fd;
int local_listen_fd;
//fd64_t local_listen_fd64;
tun_fd=get_tun_fd("tun11");
assert(tun_fd>0);
assert(new_listen_socket(local_listen_fd,local_ip_uint32,local_port)==0);
// local_listen_fd64=fd_manager.create(local_listen_fd);
assert(set_if("tun11","10.0.0.1","10.0.0.2",1000)==0);
epoll_fd = epoll_create1(0);
assert(epoll_fd>0);
const int max_events = 4096;
struct epoll_event ev, events[max_events];
if (epoll_fd < 0) {
mylog(log_fatal,"epoll return %d\n", epoll_fd);
myexit(-1);
}
ev.events = EPOLLIN;
ev.data.u64 = local_listen_fd;
ret = epoll_ctl(epoll_fd, EPOLL_CTL_ADD, local_listen_fd, &ev);
if (ret!=0) {
mylog(log_fatal,"add udp_listen_fd error\n");
myexit(-1);
}
ev.events = EPOLLIN;
ev.data.u64 = tun_fd;
ret = epoll_ctl(epoll_fd, EPOLL_CTL_ADD, tun_fd, &ev);
if (ret!=0) {
mylog(log_fatal,"add tun_fd error\n");
myexit(-1);
}
//ip_port_t dest_ip_port;
dest_t dest;
dest.type=type_fd_ip_port;
dest.inner.fd_ip_port.fd=local_listen_fd;
dest.inner.fd_ip_port.ip_port.ip=0;
dest.inner.fd_ip_port.ip_port.port=0;
//dest.conv=conv;
//dest.inner.ip_port=dest_ip_port;
//dest.cook=1;
while(1)////////////////////////
{
if(about_to_exit) myexit(0);
int nfds = epoll_wait(epoll_fd, events, max_events, 180 * 1000);
if (nfds < 0) { //allow zero
if(errno==EINTR )
{
mylog(log_info,"epoll interrupted by signal\n");
myexit(0);
}
else
{
mylog(log_fatal,"epoll_wait return %d\n", nfds);
myexit(-1);
}
}
int idx;
for (idx = 0; idx < nfds; ++idx)
{
if(events[idx].data.u64==(u64_t)local_listen_fd)
{
struct sockaddr_in udp_new_addr_in={0};
socklen_t udp_new_addr_len = sizeof(sockaddr_in);
if ((len = recvfrom(local_listen_fd, data, max_data_len, 0,
(struct sockaddr *) &udp_new_addr_in, &udp_new_addr_len)) == -1) {
mylog(log_error,"recv_from error,this shouldnt happen,err=%s,but we can try to continue\n",strerror(errno));
continue;
//myexit(1);
};
char header=0;
if(get_header(header,data,len)!=0)
{
mylog(log_warn,"get_header failed\n");
continue;
}
if((dest.inner.fd_ip_port.ip_port.ip==udp_new_addr_in.sin_addr.s_addr) && (dest.inner.fd_ip_port.ip_port.port=ntohs(udp_new_addr_in.sin_port)))
{
if(header!=header_new_connect&& header!=header_normal)
{
mylog(log_warn,"invalid header\n");
continue;
}
}
else
{
if(header==header_new_connect)
{
mylog(log_info,"new connection from %s:%d \n", inet_ntoa(udp_new_addr_in.sin_addr),
ntohs(udp_new_addr_in.sin_port));
dest.inner.fd_ip_port.ip_port.ip=udp_new_addr_in.sin_addr.s_addr;
dest.inner.fd_ip_port.ip_port.port=ntohs(udp_new_addr_in.sin_port);
}
else
{
mylog(log_info,"rejected connection from %s:%d\n", inet_ntoa(udp_new_addr_in.sin_addr),ntohs(udp_new_addr_in.sin_port));
len=1;
data[0]=header_reject;
dest_t tmp_dest;
tmp_dest.type=type_fd_ip_port;
tmp_dest.inner.fd_ip_port.fd=local_listen_fd;
tmp_dest.inner.fd_ip_port.ip_port.ip=udp_new_addr_in.sin_addr.s_addr;
tmp_dest.inner.fd_ip_port.ip_port.port=ntohs(udp_new_addr_in.sin_port);
delay_manager.add(0,tmp_dest,data,len);;
continue;
}
}
mylog(log_trace,"Received packet from %s:%d,len: %d\n", inet_ntoa(udp_new_addr_in.sin_addr),
ntohs(udp_new_addr_in.sin_port),len);
ret=write(tun_fd,data,len);
if( ret<0 )
{
mylog(log_warn,"write to tun failed len=%d ret=%d\n errno=%s\n",len,ret,strerror(errno));
}
}
else if(events[idx].data.u64==(u64_t)tun_fd)
{
len=read(tun_fd,data,max_data_len);
assert(len>=0);
mylog(log_trace,"Received packet from tun,len: %d\n",len);
if(dest.inner.fd64_ip_port.ip_port.to_u64()==0)
{
mylog(log_warn,"there is no client yet\n");
continue;
}
put_header(header_normal,data,len);
delay_manager.add(0,dest,data,len);;
}
}
delay_manager.check();
}
return 0;
}

View File

@@ -1,16 +0,0 @@
/*
* tun.h
*
* Created on: Oct 26, 2017
* Author: root
*/
#ifndef TUN_DEV_H_
#define TUN_DEV_H_
int tun_dev_client_event_loop();
int tun_dev_server_event_loop();
#endif /* TUN_H_ */

View File

@@ -70,12 +70,12 @@ int tunnel_client_event_loop()
myexit(-1);
}
u64_t fd64=conn_info.fec_encode_manager.get_timer_fd64();
u64_t tmp_fd64=conn_info.fec_encode_manager.get_timer_fd64();
ev.events = EPOLLIN;
ev.data.u64 = fd64;
ev.data.u64 = tmp_fd64;
mylog(log_debug,"conn_info.fec_encode_manager.get_timer_fd64()=%llu\n",conn_info.fec_encode_manager.get_timer_fd64());
ret = epoll_ctl(epoll_fd, EPOLL_CTL_ADD, fd_manager.to_fd(fd64), &ev);
ret = epoll_ctl(epoll_fd, EPOLL_CTL_ADD, fd_manager.to_fd(tmp_fd64), &ev);
if (ret!= 0) {
mylog(log_fatal,"add fec_encode_manager.get_timer_fd64() error\n");
myexit(-1);
@@ -173,6 +173,7 @@ int tunnel_client_event_loop()
if(events[idx].data.u64 == conn_info.fec_encode_manager.get_timer_fd64())
{
fd64_t fd64=events[idx].data.u64;
mylog(log_trace,"events[idx].data.u64 == conn_info.fec_encode_manager.get_timer_fd64()\n");
//mylog(log_info,"timer!!!\n");
@@ -314,6 +315,7 @@ int tunnel_client_event_loop()
if(!conn_info.conv_manager.is_conv_used(conv))
{
mylog(log_trace,"!conn_info.conv_manager.is_conv_used(conv)");
continue;
}
conn_info.conv_manager.update_active_time(conv);