From 4bd898a06744bdc800071a71e915b05da188388a Mon Sep 17 00:00:00 2001
From: Olia Lisa <kannar7788@gmail.com>
Date: Thu, 28 May 2026 08:43:55 +0800
Subject: [PATCH] =?UTF-8?q?=E5=A2=9E=E5=8A=A0l=20bbr=E5=8A=A0=E9=80=9F=20?=
 =?UTF-8?q?=E5=8A=9F=E8=83=BD?=
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---
 install.sh | 47 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 47 insertions(+)

diff --git a/install.sh b/install.sh
index bc74d40..7555a1d 100644
--- a/install.sh
+++ b/install.sh
@@ -135,6 +135,48 @@ create_config(){
     esac
 }
 
+enable_kernel_bbr(){
+    if [ "$(id -u)" -ne 0 ]; then
+        echo "请使用 root 权限运行该操作"
+        return 1
+    fi
+
+    if [ "$(sysctl -n net.ipv4.tcp_congestion_control 2>/dev/null)" = "bbr" ]; then
+        echo "BBR加速 已经开启，无需重复操作"
+        return 0
+    fi
+
+    if command -v modprobe >/dev/null 2>&1; then
+        modprobe tcp_bbr 2>/dev/null || true
+    fi
+
+    if ! sysctl net.ipv4.tcp_available_congestion_control 2>/dev/null | grep -qw bbr; then
+        echo "当前系统内核不支持 BBR"
+        return 1
+    fi
+
+    set_sysctl_conf(){
+        local key="$1"
+        local value="$2"
+        local file="/etc/sysctl.conf"
+
+        touch "$file"
+        if grep -qE "^[[:space:]]*#?[[:space:]]*$key[[:space:]]*=" "$file"; then
+            sed -i "s|^[[:space:]]*#\?[[:space:]]*$key[[:space:]]*=.*|$key = $value|" "$file"
+        else
+            echo "$key = $value" >> "$file"
+        fi
+    }
+
+    set_sysctl_conf "net.core.default_qdisc" "fq"
+    set_sysctl_conf "net.ipv4.tcp_congestion_control" "bbr"
+
+    sysctl -w net.core.default_qdisc=fq >/dev/null
+    sysctl -w net.ipv4.tcp_congestion_control=bbr >/dev/null
+
+    echo "BBR加速 已开启"
+}
+
 main(){
     local container_status=$(check_container_status)
     # 显示菜单
@@ -151,6 +193,7 @@ main(){
     echo "7. 修改端口"
     echo "8. 更新镜像"
     echo "9. 更新脚本"
+    echo "10. 开启BBR加速"
 
     # 读取用户选择
     local choice
@@ -212,6 +255,10 @@ main(){
             # 更新脚本
             git pull
             ;;
+        10)
+            # 开启BBR加速
+            enable_kernel_bbr
+            ;;
         *)
             echo "无效的选择, 请重新选择."
             ;;