You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
372 lines
12 KiB
372 lines
12 KiB
#!/usr/bin/env bash
|
|
#
|
|
# Auto install latest kernel for TCP BBR
|
|
#
|
|
# System Required: CentOS 6+, Debian8+, Ubuntu16+
|
|
#
|
|
# Copyright (C) 2016-2021 Teddysun <i@teddysun.com>
|
|
#
|
|
# URL: https://teddysun.com/489.html
|
|
#
|
|
|
|
cur_dir="$(cd -P -- "$(dirname -- "$0")" && pwd -P)"
|
|
|
|
_red() {
|
|
printf '\033[1;31;31m%b\033[0m' "$1"
|
|
}
|
|
|
|
_green() {
|
|
printf '\033[1;31;32m%b\033[0m' "$1"
|
|
}
|
|
|
|
_yellow() {
|
|
printf '\033[1;31;33m%b\033[0m' "$1"
|
|
}
|
|
|
|
_info() {
|
|
_green "[Info] "
|
|
printf -- "%s" "$1"
|
|
printf "\n"
|
|
}
|
|
|
|
_warn() {
|
|
_yellow "[Warning] "
|
|
printf -- "%s" "$1"
|
|
printf "\n"
|
|
}
|
|
|
|
_error() {
|
|
_red "[Error] "
|
|
printf -- "%s" "$1"
|
|
printf "\n"
|
|
exit 1
|
|
}
|
|
|
|
_exists() {
|
|
local cmd="$1"
|
|
if eval type type > /dev/null 2>&1; then
|
|
eval type "$cmd" > /dev/null 2>&1
|
|
elif command > /dev/null 2>&1; then
|
|
command -v "$cmd" > /dev/null 2>&1
|
|
else
|
|
which "$cmd" > /dev/null 2>&1
|
|
fi
|
|
local rt=$?
|
|
return ${rt}
|
|
}
|
|
|
|
_os() {
|
|
local os=""
|
|
[ -f "/etc/debian_version" ] && source /etc/os-release && os="${ID}" && printf -- "%s" "${os}" && return
|
|
[ -f "/etc/redhat-release" ] && os="centos" && printf -- "%s" "${os}" && return
|
|
}
|
|
|
|
_os_full() {
|
|
[ -f /etc/redhat-release ] && awk '{print ($1,$3~/^[0-9]/?$3:$4)}' /etc/redhat-release && return
|
|
[ -f /etc/os-release ] && awk -F'[= "]' '/PRETTY_NAME/{print $3,$4,$5}' /etc/os-release && return
|
|
[ -f /etc/lsb-release ] && awk -F'[="]+' '/DESCRIPTION/{print $2}' /etc/lsb-release && return
|
|
}
|
|
|
|
_os_ver() {
|
|
local main_ver="$( echo $(_os_full) | grep -oE "[0-9.]+")"
|
|
printf -- "%s" "${main_ver%%.*}"
|
|
}
|
|
|
|
_error_detect() {
|
|
local cmd="$1"
|
|
_info "${cmd}"
|
|
eval ${cmd}
|
|
if [ $? -ne 0 ]; then
|
|
_error "Execution command (${cmd}) failed, please check it and try again."
|
|
fi
|
|
}
|
|
|
|
_is_digit(){
|
|
local input=${1}
|
|
if [[ "$input" =~ ^[0-9]+$ ]]; then
|
|
return 0
|
|
else
|
|
return 1
|
|
fi
|
|
}
|
|
|
|
_is_64bit(){
|
|
if [ $(getconf WORD_BIT) = '32' ] && [ $(getconf LONG_BIT) = '64' ]; then
|
|
return 0
|
|
else
|
|
return 1
|
|
fi
|
|
}
|
|
|
|
_version_ge(){
|
|
test "$(echo "$@" | tr " " "\n" | sort -rV | head -n 1)" == "$1"
|
|
}
|
|
|
|
get_valid_valname(){
|
|
local val=${1}
|
|
local new_val=$(eval echo $val | sed 's/[-.]/_/g')
|
|
echo ${new_val}
|
|
}
|
|
|
|
get_hint(){
|
|
local val=${1}
|
|
local new_val=$(get_valid_valname $val)
|
|
eval echo "\$hint_${new_val}"
|
|
}
|
|
|
|
#Display Memu
|
|
display_menu(){
|
|
local soft=${1}
|
|
local default=${2}
|
|
eval local arr=(\${${soft}_arr[@]})
|
|
local default_prompt
|
|
if [[ "$default" != "" ]]; then
|
|
if [[ "$default" == "last" ]]; then
|
|
default=${#arr[@]}
|
|
fi
|
|
default_prompt="(default ${arr[$default-1]})"
|
|
fi
|
|
local pick
|
|
local hint
|
|
local vname
|
|
local prompt="which ${soft} you'd select ${default_prompt}: "
|
|
|
|
while :
|
|
do
|
|
echo -e "\n------------ ${soft} setting ------------\n"
|
|
for ((i=1;i<=${#arr[@]};i++ )); do
|
|
vname="$(get_valid_valname ${arr[$i-1]})"
|
|
hint="$(get_hint $vname)"
|
|
[[ "$hint" == "" ]] && hint="${arr[$i-1]}"
|
|
echo -e "${green}${i}${plain}) $hint"
|
|
done
|
|
echo
|
|
read -p "${prompt}" pick
|
|
if [[ "$pick" == "" && "$default" != "" ]]; then
|
|
pick=${default}
|
|
break
|
|
fi
|
|
|
|
if ! _is_digit "$pick"; then
|
|
prompt="Input error, please input a number"
|
|
continue
|
|
fi
|
|
|
|
if [[ "$pick" -lt 1 || "$pick" -gt ${#arr[@]} ]]; then
|
|
prompt="Input error, please input a number between 1 and ${#arr[@]}: "
|
|
continue
|
|
fi
|
|
|
|
break
|
|
done
|
|
|
|
eval ${soft}=${arr[$pick-1]}
|
|
vname="$(get_valid_valname ${arr[$pick-1]})"
|
|
hint="$(get_hint $vname)"
|
|
[[ "$hint" == "" ]] && hint="${arr[$pick-1]}"
|
|
echo -e "\nyour selection: $hint\n"
|
|
}
|
|
|
|
get_latest_version() {
|
|
latest_version=($(wget -qO- https://kernel.ubuntu.com/~kernel-ppa/mainline/ | awk -F'\"v' '/v[4-9]./{print $2}' | cut -d/ -f1 | grep -v - | sort -V))
|
|
[ ${#latest_version[@]} -eq 0 ] && _error "Get latest kernel version failed."
|
|
kernel_arr=()
|
|
for i in ${latest_version[@]}; do
|
|
if _version_ge $i 5.15; then
|
|
kernel_arr+=($i);
|
|
fi
|
|
done
|
|
display_menu kernel last
|
|
if _is_64bit; then
|
|
deb_name=$(wget -qO- https://kernel.ubuntu.com/~kernel-ppa/mainline/v${kernel}/ | grep "linux-image" | grep "generic" | awk -F'\">' '/amd64.deb/{print $2}' | cut -d'<' -f1 | head -1)
|
|
deb_kernel_url="https://kernel.ubuntu.com/~kernel-ppa/mainline/v${kernel}/${deb_name}"
|
|
deb_kernel_name="linux-image-${kernel}-amd64.deb"
|
|
modules_deb_name=$(wget -qO- https://kernel.ubuntu.com/~kernel-ppa/mainline/v${kernel}/ | grep "linux-modules" | grep "generic" | awk -F'\">' '/amd64.deb/{print $2}' | cut -d'<' -f1 | head -1)
|
|
deb_kernel_modules_url="https://kernel.ubuntu.com/~kernel-ppa/mainline/v${kernel}/${modules_deb_name}"
|
|
deb_kernel_modules_name="linux-modules-${kernel}-amd64.deb"
|
|
else
|
|
deb_name=$(wget -qO- https://kernel.ubuntu.com/~kernel-ppa/mainline/v${kernel}/ | grep "linux-image" | grep "generic" | awk -F'\">' '/i386.deb/{print $2}' | cut -d'<' -f1 | head -1)
|
|
deb_kernel_url="https://kernel.ubuntu.com/~kernel-ppa/mainline/v${kernel}/${deb_name}"
|
|
deb_kernel_name="linux-image-${kernel}-i386.deb"
|
|
modules_deb_name=$(wget -qO- https://kernel.ubuntu.com/~kernel-ppa/mainline/v${kernel}/ | grep "linux-modules" | grep "generic" | awk -F'\">' '/i386.deb/{print $2}' | cut -d'<' -f1 | head -1)
|
|
deb_kernel_modules_url="https://kernel.ubuntu.com/~kernel-ppa/mainline/v${kernel}/${modules_deb_name}"
|
|
deb_kernel_modules_name="linux-modules-${kernel}-i386.deb"
|
|
fi
|
|
[ -z "${deb_name}" ] && _error "Getting Linux kernel binary package name failed, maybe kernel build failed. Please choose other one and try again."
|
|
}
|
|
|
|
get_char() {
|
|
SAVEDSTTY=`stty -g`
|
|
stty -echo
|
|
stty cbreak
|
|
dd if=/dev/tty bs=1 count=1 2> /dev/null
|
|
stty -raw
|
|
stty echo
|
|
stty $SAVEDSTTY
|
|
}
|
|
|
|
check_bbr_status() {
|
|
local param=$(sysctl net.ipv4.tcp_congestion_control | awk '{print $3}')
|
|
if [[ x"${param}" == x"bbr" ]]; then
|
|
return 0
|
|
else
|
|
return 1
|
|
fi
|
|
}
|
|
|
|
check_kernel_version() {
|
|
local kernel_version=$(uname -r | cut -d- -f1)
|
|
if _version_ge ${kernel_version} 4.9; then
|
|
return 0
|
|
else
|
|
return 1
|
|
fi
|
|
}
|
|
|
|
# Check OS version
|
|
check_os() {
|
|
if _exists "virt-what"; then
|
|
virt="$(virt-what)"
|
|
elif _exists "systemd-detect-virt"; then
|
|
virt="$(systemd-detect-virt)"
|
|
fi
|
|
if [ -n "${virt}" -a "${virt}" = "lxc" ]; then
|
|
_error "Virtualization method is LXC, which is not supported."
|
|
fi
|
|
if [ -n "${virt}" -a "${virt}" = "openvz" ] || [ -d "/proc/vz" ]; then
|
|
_error "Virtualization method is OpenVZ, which is not supported."
|
|
fi
|
|
[ -z "$(_os)" ] && _error "Not supported OS"
|
|
case "$(_os)" in
|
|
ubuntu)
|
|
[ -n "$(_os_ver)" -a "$(_os_ver)" -lt 16 ] && _error "Not supported OS, please change to Ubuntu 16+ and try again."
|
|
;;
|
|
debian)
|
|
[ -n "$(_os_ver)" -a "$(_os_ver)" -lt 8 ] && _error "Not supported OS, please change to Debian 8+ and try again."
|
|
;;
|
|
centos)
|
|
[ -n "$(_os_ver)" -a "$(_os_ver)" -lt 6 ] && _error "Not supported OS, please change to CentOS 6+ and try again."
|
|
;;
|
|
*)
|
|
_error "Not supported OS"
|
|
;;
|
|
esac
|
|
}
|
|
|
|
sysctl_config() {
|
|
sed -i '/net.core.default_qdisc/d' /etc/sysctl.conf
|
|
sed -i '/net.ipv4.tcp_congestion_control/d' /etc/sysctl.conf
|
|
echo "net.core.default_qdisc = fq" >> /etc/sysctl.conf
|
|
echo "net.ipv4.tcp_congestion_control = bbr" >> /etc/sysctl.conf
|
|
sysctl -p >/dev/null 2>&1
|
|
}
|
|
|
|
install_kernel() {
|
|
case "$(_os)" in
|
|
centos)
|
|
if [ -n "$(_os_ver)" ]; then
|
|
if ! _exists "perl"; then
|
|
_error_detect "yum install -y perl"
|
|
fi
|
|
if [ "$(_os_ver)" -eq 6 ]; then
|
|
_error_detect "rpm --import https://www.elrepo.org/RPM-GPG-KEY-elrepo.org"
|
|
rpm_kernel_url="https://dl.lamp.sh/files/"
|
|
if _is_64bit; then
|
|
rpm_kernel_name="kernel-ml-4.18.20-1.el6.elrepo.x86_64.rpm"
|
|
rpm_kernel_devel_name="kernel-ml-devel-4.18.20-1.el6.elrepo.x86_64.rpm"
|
|
else
|
|
rpm_kernel_name="kernel-ml-4.18.20-1.el6.elrepo.i686.rpm"
|
|
rpm_kernel_devel_name="kernel-ml-devel-4.18.20-1.el6.elrepo.i686.rpm"
|
|
fi
|
|
_error_detect "wget -c -t3 -T60 -O ${rpm_kernel_name} ${rpm_kernel_url}${rpm_kernel_name}"
|
|
_error_detect "wget -c -t3 -T60 -O ${rpm_kernel_devel_name} ${rpm_kernel_url}${rpm_kernel_devel_name}"
|
|
[ -s "${rpm_kernel_name}" ] && _error_detect "rpm -ivh ${rpm_kernel_name}" || _error "Download ${rpm_kernel_name} failed, please check it."
|
|
[ -s "${rpm_kernel_devel_name}" ] && _error_detect "rpm -ivh ${rpm_kernel_devel_name}" || _error "Download ${rpm_kernel_devel_name} failed, please check it."
|
|
rm -f ${rpm_kernel_name} ${rpm_kernel_devel_name}
|
|
[ ! -f "/boot/grub/grub.conf" ] && _error "/boot/grub/grub.conf not found, please check it."
|
|
sed -i 's/^default=.*/default=0/g' /boot/grub/grub.conf
|
|
elif [ "$(_os_ver)" -eq 7 ]; then
|
|
rpm_kernel_url="https://dl.lamp.sh/kernel/el7/"
|
|
if _is_64bit; then
|
|
rpm_kernel_name="kernel-ml-5.15.38-1.el7.x86_64.rpm"
|
|
rpm_kernel_devel_name="kernel-ml-devel-5.15.38-1.el7.x86_64.rpm"
|
|
else
|
|
_error "Not supported architecture, please change to 64-bit architecture."
|
|
fi
|
|
_error_detect "wget -c -t3 -T60 -O ${rpm_kernel_name} ${rpm_kernel_url}${rpm_kernel_name}"
|
|
_error_detect "wget -c -t3 -T60 -O ${rpm_kernel_devel_name} ${rpm_kernel_url}${rpm_kernel_devel_name}"
|
|
[ -s "${rpm_kernel_name}" ] && _error_detect "rpm -ivh ${rpm_kernel_name}" || _error "Download ${rpm_kernel_name} failed, please check it."
|
|
[ -s "${rpm_kernel_devel_name}" ] && _error_detect "rpm -ivh ${rpm_kernel_devel_name}" || _error "Download ${rpm_kernel_devel_name} failed, please check it."
|
|
rm -f ${rpm_kernel_name} ${rpm_kernel_devel_name}
|
|
/usr/sbin/grub2-set-default 0
|
|
fi
|
|
fi
|
|
;;
|
|
ubuntu|debian)
|
|
_info "Getting latest kernel version..."
|
|
get_latest_version
|
|
if [ -n "${modules_deb_name}" ]; then
|
|
_error_detect "wget -c -t3 -T60 -O ${deb_kernel_modules_name} ${deb_kernel_modules_url}"
|
|
fi
|
|
_error_detect "wget -c -t3 -T60 -O ${deb_kernel_name} ${deb_kernel_url}"
|
|
_error_detect "dpkg -i ${deb_kernel_modules_name} ${deb_kernel_name}"
|
|
rm -f ${deb_kernel_modules_name} ${deb_kernel_name}
|
|
_error_detect "/usr/sbin/update-grub"
|
|
;;
|
|
*)
|
|
;; # do nothing
|
|
esac
|
|
}
|
|
|
|
reboot_os() {
|
|
echo
|
|
_info "The system needs to reboot."
|
|
read -p "Do you want to restart system? [y/n]" is_reboot
|
|
if [[ ${is_reboot} == "y" || ${is_reboot} == "Y" ]]; then
|
|
reboot
|
|
else
|
|
_info "Reboot has been canceled..."
|
|
exit 0
|
|
fi
|
|
}
|
|
|
|
install_bbr() {
|
|
if check_bbr_status; then
|
|
echo
|
|
_info "TCP BBR has already been enabled. nothing to do..."
|
|
exit 0
|
|
fi
|
|
if check_kernel_version; then
|
|
echo
|
|
_info "The kernel version is greater than 4.9, directly setting TCP BBR..."
|
|
sysctl_config
|
|
_info "Setting TCP BBR completed..."
|
|
exit 0
|
|
fi
|
|
check_os
|
|
install_kernel
|
|
sysctl_config
|
|
reboot_os
|
|
}
|
|
|
|
[[ $EUID -ne 0 ]] && _error "This script must be run as root"
|
|
opsy=$( _os_full )
|
|
arch=$( uname -m )
|
|
lbit=$( getconf LONG_BIT )
|
|
kern=$( uname -r )
|
|
|
|
clear
|
|
echo "---------- System Information ----------"
|
|
echo " OS : $opsy"
|
|
echo " Arch : $arch ($lbit Bit)"
|
|
echo " Kernel : $kern"
|
|
echo "----------------------------------------"
|
|
echo " Automatically enable TCP BBR script"
|
|
echo
|
|
echo " URL: https://teddysun.com/489.html"
|
|
echo "----------------------------------------"
|
|
echo
|
|
echo "Press any key to start...or Press Ctrl+C to cancel"
|
|
char=$(get_char)
|
|
|
|
install_bbr 2>&1 | tee ${cur_dir}/install_bbr.log
|
|
|