设置eth0是wan口 其余网口为lan口

完成需求
https://github.com/wukongdaily/AutoBuildImmortalWrt/issues/109

files/etc/uci-defaults/99-custom.sh

@@ -11,25 +11,28 @@ uci add dhcp domain
 uci set "dhcp.@domain[-1].name=time.android.com"
 uci set "dhcp.@domain[-1].ip=203.107.6.88"
 
+# 检查配置文件pppoe-settings是否存在 该文件由build.sh动态生成
+SETTINGS_FILE="/etc/config/pppoe-settings"
+if [ ! -f "$SETTINGS_FILE" ]; then
+    echo "PPPoE settings file not found. Skipping." >> $LOGFILE
+else
+   # 读取pppoe信息($enable_pppoe、$pppoe_account、$pppoe_password)
+   . "$SETTINGS_FILE"
+fi
 
 # 计算网卡数量
 count=0
+ifnames=""
 for iface in /sys/class/net/*; do
   iface_name=$(basename "$iface")
   # 检查是否为物理网卡（排除回环设备和无线设备）
   if [ -e "$iface/device" ] && echo "$iface_name" | grep -Eq '^eth|^en'; then
     count=$((count + 1))
+    ifnames="$ifnames $iface_name"
   fi
 done
-
-# 检查配置文件pppoe-settings是否存在 该文件由build.sh动态生成
-SETTINGS_FILE="/etc/config/pppoe-settings"
-if [ ! -f "$SETTINGS_FILE" ]; then
-    echo "PPPoE settings file not found. Skipping." >> $LOGFILE
-else
-   # 读取pppoe信息($enable_pppoe、$pppoe_account、$pppoe_password)
-   . "$SETTINGS_FILE"
-fi
+# 删除多余空格
+ifnames=$(echo "$ifnames" | awk '{$1=$1};1')
 
 # 网络设置
 if [ "$count" -eq 1 ]; then
@@ -37,25 +40,58 @@ if [ "$count" -eq 1 ]; then
    # 单网口设备 不支持修改ip 不要在此处修改ip 
    uci set network.lan.proto='dhcp'
 elif [ "$count" -gt 1 ]; then
+   # 提取第一个接口作为WAN
+   wan_ifname=$(echo "$ifnames" | awk '{print $1}')
+   # 剩余接口保留给LAN
+   lan_ifnames=$(echo "$ifnames" | cut -d ' ' -f2-)
+   # 设置WAN接口基础配置
+   uci set network.wan=interface
+   # 提取第一个接口作为WAN
+   uci set network.wan.device="$wan_ifname"
+   # WAN接口默认DHCP
+   uci set network.wan.proto='dhcp'
+   # 设置WAN6绑定网口eth0
+   uci set network.wan6=interface
+   uci set network.wan6.device="$wan_ifname"
+   # 更新LAN接口成员
+   # 查找对应设备的section名称
+   section=$(uci show network | awk -F '[.=]' '/\.@?device\[\d+\]\.name=.br-lan.$/ {print $2; exit}')
+   if [ -z "$section" ]; then
+      echo "error：cannot find device 'br-lan'." >> $LOGFILE
+   else
+      # 删除原来的ports列表
+      uci -q delete "network.$section.ports"
+      # 添加新的ports列表
+      for port in $lan_ifnames; do
+         uci add_list "network.$section.ports"="$port"
+      done
+      echo "ports of device 'br-lan' are update." >> $LOGFILE
+   fi
+   # LAN口设置静态IP
+   uci set network.lan.proto='static'
    # 多网口设备 支持修改为别的ip地址
    uci set network.lan.ipaddr='192.168.100.1'
+   uci set network.lan.netmask='255.255.255.0'
    echo "set 192.168.100.1 at $(date)" >> $LOGFILE
    # 判断是否启用 PPPoE
    echo "print enable_pppoe value=== $enable_pppoe" >> $LOGFILE
    if [ "$enable_pppoe" = "yes" ]; then
       echo "PPPoE is enabled at $(date)" >> $LOGFILE
-      # 设置宽带拨号信息
+      # 设置ipv4宽带拨号信息
       uci set network.wan.proto='pppoe'
       uci set network.wan.username=$pppoe_account
       uci set network.wan.password=$pppoe_password
       uci set network.wan.peerdns='1'
       uci set network.wan.auto='1'
+      # 设置ipv6 默认不配置协议
+      uci set network.wan6.proto='none'
       echo "PPPoE configuration completed successfully." >> $LOGFILE
    else
       echo "PPPoE is not enabled. Skipping configuration." >> $LOGFILE
    fi
 fi
 
+
 # 设置所有网口可访问网页终端
 uci delete ttyd.@ttyd[0].interface