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Update net.sh

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Fixed NAT type detection issue
This commit is contained in:
xykt
2025-08-22 01:33:03 +08:00
committed by GitHub
parent b9b4812a2c
commit 1b87a509fb
1 changed files with 88 additions and 32 deletions
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120
net.sh
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@@ -1,5 +1,5 @@
#!/bin/bash
script_version="v2025-08-19"
script_version="v2025-08-22"
check_bash(){
current_bash_version=$(bash --version|head -n 1|awk '{for(i=1;i<=NF;i++) if ($i ~ /^[0-9]+\.[0-9]+(\.[0-9]+)?/) print $i}')
major_version=$(echo "$current_bash_version"|cut -d'.' -f1)
@@ -214,19 +214,28 @@ slocal[tcpcc]="Congestion Control: "
slocal[qdisc]="Queue Discipline: "
slocal[rmem]="TCP Receive Buffer: "
slocal[wmem]="TCP Send Buffer: "
slocal[error]=""
slocal[0x000001]="$Back_Green$Font_White$Font_B Open Without NAT $Font_Suffix"
slocal[0x000002]="$Back_Yellow$Font_White$Font_B Full Cone NAT $Font_Suffix"
slocal[0x000004]="$Back_Red$Font_White$Font_B Restricted Cone NAT $Font_Suffix"
slocal[0x000008]="$Back_Red$Font_White$Font_B Port Restricted Cone NAT $Font_Suffix"
slocal[0x000010]="$Back_Red$Font_White$Font_B Symmetric NAT $Font_Suffix"
slocal[0x000013]="$Back_Red$Font_White$Font_B Symmetric NAT with Independent Mapping $Font_Suffix"
slocal[0x00001c]="$Back_Red$Font_White$Font_B Blocked or Unreachable $Font_Suffix"
slocal[0x000100]="$Back_Red$Font_White$Font_B Preserves Port $Font_Suffix"
slocal[0x000200]="$Back_Red$Font_White$Font_B Hairpin $Font_Suffix"
slocal[0x000400]="$Back_Red$Font_White$Font_B Independent Mapping $Font_Suffix"
slocal[0x000800]="$Back_Red$Font_White$Font_B Independent Filter $Font_Suffix"
slocal[unknown]="$Back_Yellow$Font_White$Font_B Unknown NAT Type $Font_Suffix"
slocal[port]="Port: "
slocal[mapping]="Mapping: "
slocal[filter]="Filter: "
slocal[hairpin]="Hairpin: "
slocal[m0]="${Font_Green}Independent $Font_Suffix"
slocal[m1]="${Font_Red}Dependent $Font_Suffix"
slocal[f1]="${Font_Green}Independent $Font_Suffix"
slocal[f2]="${Font_Yellow}AddressDependent $Font_Suffix"
slocal[f3]="${Font_Red}PortDependent $Font_Suffix"
slocal[p0]="${Font_Yellow}Random $Font_Suffix"
slocal[p1]="${Font_Green}Preserve $Font_Suffix"
slocal[h0]="${Font_Green}Yes$Font_Suffix"
slocal[h1]="${Font_Yellow}No$Font_Suffix"
slocal[open]="$Back_Green$Font_White$Font_B Open Without NAT $Font_Suffix"
slocal[full]="$Back_Green$Font_White$Font_B Full Cone $Font_Suffix"
slocal[rest]="$Back_Yellow$Font_White$Font_B Restricted Cone $Font_Suffix"
slocal[portrest]="$Back_Yellow$Font_White$Font_B Port Restricted Cone $Font_Suffix"
slocal[symm]="$Back_Red$Font_White$Font_B Symmetric $Font_Suffix"
slocal[fail]="$Back_Red$Font_White$Font_B Checking Error $Font_Suffix"
slocal[firewall]="$Back_yellow$Font_White$Font_B Firewall $Font_Suffix"
slocal[block]="$Back_red$Font_White$Font_B Connection Failed $Font_Suffix"
slocal[unknown]="$Back_yellow$Font_White$Font_B Unknown NAT Type $Font_Suffix"
sconn[title]="3. Connectivity ($Back_Green$Font_White$Font_B*$Font_Suffix$Font_I=Tier1 $Font_Suffix$Back_Yellow$Font_White$Font_B*$Font_Suffix$Font_I=Non-Tier1 $Font_Suffix$Font_U*$Font_Suffix$Font_I=Upstream$Font_Suffix)"
sconn[ix]="IXPs Counts: "
sconn[upstreams]="Upstreams Counts: "
@@ -302,19 +311,28 @@ slocal[tcpcc]="TCP拥塞控制算法："
slocal[qdisc]="队列调度算法： "
slocal[rmem]="TCP接收缓冲区（rmem）："
slocal[wmem]="TCP发送缓冲区（wmem）："
slocal[error]=""
slocal[0x000001]="$Back_Green$Font_White$Font_B 开放网络无NAT $Font_Suffix"
slocal[0x000002]="$Back_Yellow$Font_White$Font_B 完全锥形NAT $Font_Suffix"
slocal[0x000004]="$Back_Red$Font_White$Font_B 限制锥形NAT $Font_Suffix"
slocal[0x000008]="$Back_Red$Font_White$Font_B 端口限制锥形NAT $Font_Suffix"
slocal[0x000010]="$Back_Red$Font_White$Font_B 对称NAT $Font_Suffix"
slocal[0x000013]="$Back_Red$Font_White$Font_B 独立映射规则对称NAT $Font_Suffix"
slocal[0x00001c]="$Back_Red$Font_White$Font_B 不可达或连接被阻断 $Font_Suffix"
slocal[0x000100]="$Back_Red$Font_White$Font_B NAT保留了源端口 $Font_Suffix"
slocal[0x000200]="$Back_Red$Font_White$Font_B 支持发往自身的反射流量 $Font_Suffix"
slocal[0x000400]="$Back_Red$Font_White$Font_B NAT映射独立 $Font_Suffix"
slocal[0x000800]="$Back_Red$Font_White$Font_B NAT过滤独立 $Font_Suffix"
slocal[unknown]="$Back_Yellow$Font_White$Font_B 未知NAT类型 $Font_Suffix"
slocal[port]="端口行为："
slocal[mapping]="映射行为："
slocal[filter]="过滤行为："
slocal[hairpin]="环回："
slocal[m0]="$Font_Green独立映射 $Font_Suffix"
slocal[m1]="$Font_Red依赖映射 $Font_Suffix"
slocal[f1]="$Font_Green端点独立过滤 $Font_Suffix"
slocal[f2]="$Font_Yellow地址依赖过滤 $Font_Suffix"
slocal[f3]="$Font_Red端口依赖过滤 $Font_Suffix"
slocal[p0]="$Font_Yellow端口随机 $Font_Suffix"
slocal[p1]="$Font_Green端口保留 $Font_Suffix"
slocal[h0]="$Font_Green支持$Font_Suffix"
slocal[h1]="$Font_Yellow不支持$Font_Suffix"
slocal[open]="$Back_Green$Font_White$Font_B 开放网络无NAT $Font_Suffix"
slocal[full]="$Back_Green$Font_White$Font_B 全锥形 $Font_Suffix"
slocal[rest]="$Back_Yellow$Font_White$Font_B 受限锥形 $Font_Suffix"
slocal[portrest]="$Back_Yellow$Font_White$Font_B 端口受限锥形 $Font_Suffix"
slocal[symm]="$Back_Red$Font_White$Font_B 对称型 $Font_Suffix"
slocal[fail]="$Back_Red$Font_White$Font_B 检测错误 $Font_Suffix"
slocal[firewall]="$Back_yellow$Font_White$Font_B 防火墙 $Font_Suffix"
slocal[block]="$Back_red$Font_White$Font_B 连接失败 $Font_Suffix"
slocal[unknown]="$Back_yellow$Font_White$Font_B 未知NAT类型 $Font_Suffix"
sconn[title]="三、接入信息（$Back_Green$Font_White$Font_B*$Font_Suffix$Font_I=Tier1 $Font_Suffix$Back_Yellow$Font_White$Font_B*$Font_Suffix$Font_I=非Tier1 $Font_Suffix$Font_U*$Font_Suffix$Font_I=上游$Font_Suffix）"
sconn[ix]="互联网交换点接入数："
sconn[upstreams]="上游数量："
@@ -1019,13 +1037,48 @@ show_progress_bar "$temp_info" $((50-${sinfo[lnat]}))&
bar_pid="$!"&&disown "$bar_pid"
trap "kill_progress_bar" RETURN
getnat=()
if [[ $rawgithub == *"github.com"* ]];then
local result=$(stun "stun.l.google.com" 2>/dev/null)
getnat[nat]=$(echo "$result"|grep -oE "0x[0-9A-Fa-f]+")
if [[ -z ${getnat[nat]} ]];then
getnat[natresu]="${slocal[error]}"
else
getnat[natresu]="${slocal[${getnat[nat]}]}"
local result=$(stun "stun.miwifi.com" 2>/dev/null)
fi
getnat[nat]=$(echo "$result"|grep -oE "0x[0-9A-Fa-f]+")
[[ -z ${getnat[nat]} ]]&&return 1
local val=$((${getnat[nat]}))
local portpres=$((val&0x01))
local filtering=$(((val&0x06)>>1))
local mapping=$(((val&0x08)>>3))
local hairpin=$(((val&0x10)>>4))
getnat[m]=$mapping
getnat[f]=$filtering
getnat[p]=$portpres
getnat[h]=$hairpin
local ntype="fail"
getnat[char]=0
if [[ ${getnat[nat]} == "0xFFFFFFFF" || ${getnat[nat]} == "0x0000EE" ]];then
ntype="fail"
elif [[ $mapping -eq 1 && $filtering -eq 1 ]];then
ntype="firewall"
elif [[ $mapping -eq 1 && $filtering -eq 2 ]];then
ntype="block"
elif [[ $mapping -eq 1 && $filtering -eq 3 ]];then
ntype="unknown"
elif [[ $mapping -eq 0 && $filtering -eq 0 ]];then
ntype="open"
elif [[ $mapping -eq 0 && $filtering -eq 1 ]];then
ntype="full"
getnat[char]=1
elif [[ $mapping -eq 0 && $filtering -eq 2 ]];then
ntype="rest"
getnat[char]=1
elif [[ $mapping -eq 0 && $filtering -eq 3 ]];then
ntype="portrest"
getnat[char]=1
elif [[ $mapping -eq 1 ]];then
ntype="symm"
getnat[char]=1
fi
getnat[type]=$ntype
}
get_tcp(){
local temp_info="$Font_Cyan$Font_B${sinfo[tcp]}$Font_Suffix"
@@ -2441,7 +2494,10 @@ fi
}
show_local(){
echo -ne "\r${slocal[title]}\n"
[[ -n ${getnat[natresu]} ]]&&echo -ne "\r$Font_Cyan${slocal[nat]}$Font_Green${getnat[natresu]}$Font_Suffix\n"
[[ -n ${getnat[type]} ]]&&echo -ne "\r$Font_Cyan${slocal[nat]}${slocal[${getnat[type]}]}$Font_Suffix\n"
if [[ ${getnat[char]} -eq 1 ]];then
echo -ne "\r$Font_Cyan${slocal[mapping]}${slocal[m${getnat[m]}]}$Font_Suffix$Font_Cyan${slocal[filter]}${slocal[f${getnat[f]}]}$Font_Suffix$Font_Cyan${slocal[port]}${slocal[p${getnat[p]}]}$Font_Suffix$Font_Cyan${slocal[hairpin]}${slocal[h${getnat[h]}]}$Font_Suffix\n"
fi
echo -ne "\r$Font_Cyan${slocal[tcpcc]}$Font_Green$(printf '%-13s' "${gettcp[tcpcc]}")$Font_Cyan${slocal[rmem]}$Font_Green${gettcp[rmem]}$Font_Suffix\n"
echo -ne "\r$Font_Cyan${slocal[qdisc]}$Font_Green$(printf '%-13s' "${gettcp[qdisc]}")$Font_Cyan${slocal[wmem]}$Font_Green${gettcp[wmem]}$Font_Suffix\n"
}