From 6fc3519b5cd45a44861a147c60178351a7f482ad Mon Sep 17 00:00:00 2001
From: Yuk1n0 <39364985+Yuk1n0@users.noreply.github.com>
Date: Sat, 2 Nov 2019 00:34:35 +0800
Subject: [PATCH] Add BBRPlus Script Powered by cx9208

---
 README.md | 96 ++++++++++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 95 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 6d5f8d1..0423f54 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-# Shadowsocks 一键安装脚本(四合一)
+# 一键安装脚本(四合一)
 
 - 脚本说明: Shadowsocks 一键安装脚本(四合一)
 - 系统支持: CentOS 6+，Debian 7+，Ubuntu 12+
@@ -100,3 +100,97 @@ tls1.2_ticket_auth
 tls1.2_ticket_auth_compatible
 tls1.2_ticket_fastauth
 tls1.2_ticket_fastauth_compatible
+
+# BBRplus 
+
+## 脚本安装方法：  
+
+一键脚本（全系统）：   
+参见https://github.com/chiakge/Linux-NetSpeed   
+
+一键脚本（仅CentOS）：  
+```bash
+wget --no-check-certificate https://raw.githubusercontent.com/Yuk1n0/Shadowsocks-Install/master/bbrplus_centos.sh && chmod +x bbrplus_centos.sh && ./bbrplus_centos.sh
+```
+安装后，执行uname -r，显示4.14.129-bbrplus则切换内核成功  
+执行lsmod | grep bbr，显示有bbrplus则开启成功   
+
+## 手动安装方法：  
+1.  卸载本机的锐速（如果有）  
+
+2.  下载内核  
+wget --no-check-certificate https://github.com/Yuk1n0/Shadowsocks-Install/raw/master/Centos7/x86_64/kernel-4.14.129-bbrplus.rpm
+
+3.  安装内核  
+yum install -y kernel-4.14.129-bbrplus.rpm  
+
+4.  切换启动内核  
+grub2-set-default 'CentOS Linux (4.14.129-bbrplus) 7 (Core)'  
+
+5.  设置fq  
+echo "net.core.default_qdisc=fq" >> /etc/sysctl.conf  
+设置bbrplus  
+echo "net.ipv4.tcp_congestion_control=bbrplus" >> /etc/sysctl.conf  
+
+6.  重启  
+reboot  
+
+7.  检查内核版本  uname -r  
+显示4.14.129-bbrplus则成功  
+
+8.  检查bbrplus是否已经启动  
+lsmod | grep bbrplus  显示有tcp_bbrplus则成功  
+
+## 卸载方法：  
+安装别的内核bbrplus自动失效，卸载内核自行谷歌即可  
+
+## 内核编译：  
+
+只能用于4.14.x内核，更高版本的tcp部分源码有改动，要移植到高版本内核得自己研究  
+
+下载4.14内核源码   
+wget https://cdn.kernel.org/pub/linux/kernel/v4.x/linux-4.14.91.tar.xz   
+
+解压  
+tar  -Jxvf  linux-4.14.91.tar.xz -C  /root/  
+
+修改linux-4.14.91/include/net/inet_connection_sock.h，139行  
+u64     icsk_ca_priv[112 / sizeof(u64)];  
+#define ICSK_CA_PRIV_SIZE      (14 * sizeof(u64))  
+这两段数值改为112和14，如上  
+
+修改/net/ipv4/tcp_output.c#L，1823行  
+tcp_snd_wnd_test函数大括号后}  
+换行添加EXPORT_SYMBOL(tcp_snd_wnd_test);  
+
+添加tcp_bbrplus.c，删除/net/ipv4/tcp_bbr.c  
+修改linux-4.14.91/net/ipv4/Makefile，  
+obj-$(CONFIG_TCP_CONG_BBR) += tcp_bbrplus.o，bbr改为bbrplus  
+
+安装依赖  
+**Centos**  
+yum -y groupinstall Development tools  
+yum -y install ncurses-devel bc gcc gcc-c++ ncurses ncurses-devel cmake elfutils-libelf-devel openssl-devel rpm-build redhat-rpm-config asciidoc hmaccalc perl-ExtUtils-Embed xmlto audit-libs-devel binutils-devel elfutils-devel elfutils-libelf-devel newt-devel python-devel zlib-devel  
+
+**Debian**  
+wget -qO- git.io/superupdate.sh | bash  
+apt-get install build-essential libncurses5-dev  
+apt-get build-dep linux  
+
+切换到目录  
+cd /root/linux-4.14.91  
+
+配置  
+make oldconfig  
+或者  
+make menuconfig  
+
+确保CONFIG_TCP_CONG_BBR=m  
+
+禁用签名调试  
+scripts/config --disable MODULE_SIG  
+scripts/config --disable DEBUG_INFO  
+
+开始编译  
+centos：make rpm-pkg  
+debian：make deb-pkg