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openwrt/immortalwrt编译内核模块并修改版本号

发布时间:April 21, 2023 // 分类: // No Comments

#编译工具链
make tools/install
make toolchain/install
#先进入菜单将要编译的模块选择为M
make menuconfig
make target/linux/{clean,compile}
make package/kernel/linux/{clean,compile}

使用现成工具链,省得编译浪费时间:

wget https://downloads.openwrt.org/releases/21.02.6/targets/mediatek/mt7622/openwrt-sdk-21.02.6-mediatek-mt7622_gcc-8.4.0_musl.Linux-x86_64.tar.xz
tar Jxf openwrt-sdk-21.02.6-mediatek-mt7622_gcc-8.4.0_musl.Linux-x86_64.tar.xz 
mv staging_dir staging_dir-back
mv openwrt-sdk-21.02.6-mediatek-mt7622_gcc-8.4.0_musl.Linux-x86_64/staging_dir ./

如mtkhnat模块和ipk位置:

build_dir/target-aarch64_cortex-a53_musl/linux-mediatek_mt7981/packages/ipkg-aarch64_cortex-a53/kmod-mediatek_hnat/lib/modules/5.4.238/mtkhnat.ko
bin/targets/mediatek/mt7981/packages/kmod-mediatek_hnat_5.4.238-1_aarch64_cortex-a53.ipk 

如果编译的最新模块小版本号与系统不一致可用sed修改,要确保模块无大更新,不然可能有兼容性问题。

sed -i 's/5\.4\.238/5\.4\.225/g' build_dir/target-aarch64_cortex-a53_musl/linux-mediatek_mt7981/packages/ipkg-aarch64_cortex-a53/kmod-mediatek_hnat/lib/modules/5.4.238/mtkhnat.ko

https://openwrt.org/docs/guide-developer/toolchain/single.package
https://forum.openwrt.org/t/how-to-build-an-additional-kernel-module/56575/2

OpenWrt/PandoraBox多网段转发udp广播包

发布时间:April 1, 2022 // 分类: // No Comments

之前有写不同网段间转发mdns消息,对于依赖udp广播的程序可通过iptables tee镜像流量转发广播到不同网段。
安装tee模块:

opkg install iptables-mod-tee
#将10.0.0.0网段udp广播目标端口9687转发到10.0.1.0网段
iptables -t mangle -I INPUT -i br-lan -d 255.255.255.255 -p udp --dport 9687 -m ttl --ttl-gt 0 -j TTL --ttl-set 1
iptables -t mangle -I INPUT -i br-lan -d 255.255.255.255 -p udp --dport 9687 -m ttl --ttl-gt 0 -j TEE --gateway 10.0.1.255

#反向
iptables -t mangle -I INPUT -i br-robot -d 255.255.255.255 -p udp --dport 9687 -m ttl --ttl-gt 0 -j TTL --ttl-set 1
iptables -t mangle -I INPUT -i br-robot -d 255.255.255.255 -p udp --dport 9687 -m ttl --ttl-gt 0 -j TEE --gateway 10.0.0.255

iptables放行9687数据包:

iptables -A FORWARD -i br-robot -o br-lan -p udp --dport 9687 -j ACCEPT

不支持iptables tee模块可使用独立的udp广播转发程序:
https://github.com/nomeata/udp-broadcast-relay
参考:
https://odi.ch/weblog/posting.php?posting=731

openwrt/PandoraBox通过cgi-bin脚本获取网络状态

发布时间:February 23, 2021 // 分类: // No Comments

通过lua脚本获取wan联网状态:

#!/usr/bin/lua
require 'luci.sys'

print("Content-Type: text/html")
print("")       

status = luci.sys.exec("ifstatus wan")
print(status)

通过sh:

#!/bin/sh
echo "Content-Type: text/html"
echo ""
echo `ifstatus wan`

保存到/www/cgi-bin/目录,并添加执行权限,测试:

curl 192.168.1.1/cgi-bin/file

openwrt使用dnspod api自动更新ddns

发布时间:February 12, 2019 // 分类:OpenWrt // No Comments

通过dnspod api实现动态ddns更新ip,ipv4和ipv6支持,shell脚本如下:

#!/bin/bash
token="www.haiyun.me"
domain="haiyun.me"
if which jq > /dev/null; then
  json="jq"
elif which jsonfilter > /dev/null; then
  json="jsonfilter"
else
  echo 'please install jq or jsonfilter'
  exit
fi
if ! which curl > /dev/null || ! which curl > /dev/null; then
  echo 'please install curl and grep'
  exit
fi
if [[ $1 == "list" ]]; then
  curl -s -d "login_token=$token&format=json&domain=$domain" "https://dnsapi.cn/Record.List" | jq -r -M '.records[]|.name + "\t\t " + .type + "\t\t " + .value'
  exit
fi
if [[ $1 == "delete" ]]; then
  if [[ ! $3 || ! $2 ]]; then
    echo 'use ddns.sh delete name type'
    exit
  fi
  id=$(curl -s -d "login_token=$token&format=json&domain=$domain" "https://dnsapi.cn/Record.List" | jq -r -e ".records | .[] | select(.name == \"$2\" and .type == \"${3^^}\")|.id")
  if [[ $id ]]; then
    if curl -s -d "login_token=$token&format=json&domain=$domain&record_id=$id" https://dnsapi.cn/Record.Remove | grep -q '"code":"1"'; then
      echo "sus"
    fi
  else
    echo 'no record'
  fi
  exit
fi
if [[ ! $1 || ! $2 ]]; then
  echo 'use ddns.sh name ip'
  echo 'use ddns.sh list'
  echo 'use ddns.sh delete name type'
  exit
fi
name=$1
new_ip=$2
if [[ $new_ip =~ ^[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}$ ]]; then
  #sleep 10
  #curl http://192.168.168.6/announce.php --silent --output /dev/null
  record_type='A'
  echo 'ipv4'
elif [[ $new_ip =~ ^([0-9a-fA-F]{0,4}:){1,7}[0-9a-fA-F]{0,4}$ ]]; then
  echo 'ipv6'
  record_type='AAAA'
else
  echo "invalid IP address $new_ip"
  #logger -t ddns "invalid IP address $new_ip"
  exit
fi
curl -s -d "login_token=$token&format=json&domain=$domain" "https://dnsapi.cn/Record.List" -o /tmp/dns.txt
if ! grep -q '"code":"1"' /tmp/dns.txt; then
  echo 'get record list error'
  exit
fi

if [[ $record_type == "AAAA" ]]; then
  if [[ $json == "jq" ]]; then
    id=$(jq -r -e ".records | .[] | select(.name == \"$name\" and .type == \"AAAA\")|.id" /tmp/dns.txt)
    ip=$(jq -r -e ".records | .[] | select(.name == \"$name\" and .type == \"AAAA\")|.value" /tmp/dns.txt)
  else
    ip=$(jsonfilter -i /tmp/dns.txt -e "@.records[@.name='$name'&&@.type='AAAA'].value")
    id=$(jsonfilter -i /tmp/dns.txt -e "@.records[@.name='$name'&&@.type='AAAA'].id")
  fi
elif [[ $record_type == "A" ]]; then
  if [[ $json == "jq" ]]; then
    id=$(jq -r -e ".records | .[] | select(.name == \"$name\" and .type == \"A\")|.id" /tmp/dns.txt)
    ip=$(jq -r -e ".records | .[] | select(.name == \"$name\" and .type == \"A\")|.value" /tmp/dns.txt)
  else
    ip=$(jsonfilter -i /tmp/dns.txt -e "@.records[@.name='$name'&&@.type='A'].value")
    id=$(jsonfilter -i /tmp/dns.txt -e "@.records[@.name='$name'&&@.type='A'].id")
  fi
fi
#echo $name;
#echo $id;
#echo $ip;
#echo $new_ip;
if [[ $ip == $new_ip ]]; then
  echo 'no update needed'
  exit
fi
if [[ $id ]]; then
  echo "mod ip"
  if curl -s -d "login_token=$token&format=json&domain=$domain&record_id=$id&value=$new_ip&record_type=$record_type&record_line_id=0&sub_domain=$name" https://dnsapi.cn/Record.Modify | grep -q '"code":"1"'; then
    echo "sus"
  fi
else
  echo "add ip"
  if curl -s -d "login_token=$token&format=json&domain=$domain&sub_domain=$name&record_type=$record_type&record_line_id=0&value=$new_ip" https://dnsapi.cn/Record.Create | grep -q '"code":"1"'; then
    echo "sus"
  fi
fi

在/lib/netifd/ppp-up文件内调用上面的脚本,当pppoe网络连接成功时会执行此文件,$4变量为pppoe连接的本地IP。

/usr/bin/update-ip.sh name $4 > /dev/null 2>&1 &

pppoe只能传递公网ipv4,使用ifstatus可获取pppoe接口ipv6地址和分配内网的ipv6前缀,根据mac生成的ipv6后缀可为内网其它机器做ddns。

ifstatus wan_6
ifstatus wan
ubus call network.interface dump
jsonfilter -i /tmp/wan6.txt -e '@["ipv6-prefix"][0].address'
jsonfilter -i /tmp/wan6.txt -e '@["ipv6-address"][0].address' 

PHP版本:
https://www.haiyun.me/archives/1186.html

ImageBuilder制作k2p潘多拉/PandoraBox固件

发布时间:November 2, 2018 // 分类:K2P // 8 Comments

基于ubuntu 18.04,安装依赖:

apt install build-essential libncurses5-dev zlib1g-dev gawk git  libssl-dev wget unzip python ocaml-nox help2man texinfo yui-compressor

下载最新版本18.10的ImageBuilder:

https://downloads.pangubox.com/pandorabox/18.10/targets/ralink/mt7621/PandoraBox-ImageBuilder-ralink-mt7621.Linux-x86_64.tar.xz
tar Jxf PandoraBox-ImageBuilder-ralink-mt7621.Linux-x86_64.tar.xz
cd PandoraBox-ImageBuilder-ralink-mt7621.Linux-x86_64

查看可编译的固件型号及其包含的软件包:

make info

制作固件:

#info显示的所有机型固件
make image
#仅制作k2p固件
make image PROFILE="k2p"
#安装额外的软件包,自编译软件先把软件放到packages/目录下
make image PROFILE="k2p" PACKAGES="wget"
#添加files目录内文件到固件内,如files/etc/config/network网络配置文件
make image PROFILE="k2p" FILES="files"
#查看更多选项
make help

默认的软件包在以下两个文件内:

include/target.mk
.profiles.mk 

开始使用默认配置制作k2p固件:

make image PROFILE="k2p"

遇到以下错误:

 regexp could be something like 'pkgname*' '*file*' or similar
 e.g. opkg info 'libstd*' or opkg search '*libop*' or opkg remove 'libncur*'
Makefile:140: recipe for target 'package_install' failed
make[2]: *** [package_install] Error 1
make[2]: Leaving directory '/tmp/PandoraBox-ImageBuilder-ralink-mt7621.Linux-x86_64'
Makefile:110: recipe for target '_call_image' failed
make[1]: *** [_call_image] Error 2
make[1]: Leaving directory '/tmp/PandoraBox-ImageBuilder-ralink-mt7621.Linux-x86_64'
Makefile:196: recipe for target 'image' failed
make: *** [image] Error 2

因为在Makerfile 144行要预先安装kernel文件,而package没kernel软件包,下载kernel:

wget https://downloads.pangubox.com/pandorabox/18.10/targets/ralink/mt7621/packages/kernel_3.14.79-1_mipsel_1004kc_dsp.ipk -P packages/

再次执行又出现错误:

Collected errors:
 * opkg_install_cmd: Cannot install package dosfsck.
 * opkg_install_cmd: Cannot install package fkmod-leds-gpio.
 * opkg_install_cmd: Cannot install package kmod-ipt-nathelper.
 * opkg_install_cmd: Cannot install package mkdosfs.
 * satisfy_dependencies_for: Cannot satisfy the following dependencies for ralink-utils:
 *      kmod-ipt-nathelper-extra * 
Makefile:140: recipe for target 'package_install' failed
make[2]: *** [package_install] Error 255
make[2]: Leaving directory '/tmp/PandoraBox-ImageBuilder-ralink-mt7621.Linux-x86_64'
Makefile:110: recipe for target '_call_image' failed
make[1]: *** [_call_image] Error 2
make[1]: Leaving directory '/tmp/PandoraBox-ImageBuilder-ralink-mt7621.Linux-x86_64'
Makefile:196: recipe for target 'image' failed
make: *** [image] Error 2

因为新版的openwrt将kmod-ipt-nathelper-extra 更改为kmod-nf-nathelper-extra,而潘多拉的源package没修改依赖,使用以下脚本在制作时更新源后修改软件依赖项kmod-ipt-nathelper-extra为kmod-nf-nathelper-extra:

#!/bin/bash
for file in `ls dl/18.10*`;do 
        echo $file;
        mv $file $file.gz
        gunzip $file.gz
        sed -i 's/kmod-ipt-nathelper-extra/kmod-nf-nathelper-extra/g' $file
        gzip -9 $file
        mv $file.gz $file
done
sed -i 's/kmod-ipt-nathelper/kmod-nf-nathelper/g' include/target.mk 

将以上保存为fix.sh到image build目录加可执行权限,并修改Makefile文件在122行$(MAKE) package_install前插入:

$(TOPDIR)/fix.sh

再次执行又遇到以下错误:

Collected errors:
 * opkg_install_cmd: Cannot install package dosfsck.
 * opkg_install_cmd: Cannot install package fkmod-leds-gpio.
 * opkg_install_cmd: Cannot install package mkdosfs.

因为上面这3个软件有的改名,有的名字写错,修复下:

sed -i 's/fkmod-leds-gpio/kmod-leds-gpio/g' .profiles.mk
sed -i 's/mkdosfs dosfsck/dosfstools/g' .profiles.mk
````
再次执行终于制作完成k2p固件,将制作的固件scp到路由/tmp/目录开始刷机:

scp bin/targets/ralink/mt7621/PandoraBox-ralink-mt7621-k2p-2018-10-26-git-85c67caa2-squashfs-sysupgrade.bin 192.168.168.1:/tmp/

k2p路由内使用[sysupgrade命令刷机][1]:

sysupgrade -n -v /tmp/PandoraBox-ralink-mt7621-k2p-2018-10-26-git-85c67caa2-squashfs-sysupgrade.bin

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