From b913e0bc572750eb24e742a92f83c9b8b87519b1 Mon Sep 17 00:00:00 2001
From: gitea-action <git@cooluc.com>
Date: Thu, 8 May 2025 01:00:30 +0800
Subject: [PATCH] luci-app-passwall: sync upstream

last commit: https://github.com/xiaorouji/openwrt-passwall/commit/079691261d4c6345f0bf676c50bd956b6e1525b1
---
 .../root/usr/share/passwall/app.sh            |  5 ++
 .../usr/share/passwall/helper_dnsmasq.lua     |  6 +++
 .../root/usr/share/passwall/lease2hosts.sh    | 47 +++++++++++++++++++
 3 files changed, 58 insertions(+)
 create mode 100755 luci-app-passwall/root/usr/share/passwall/lease2hosts.sh

diff --git a/luci-app-passwall/root/usr/share/passwall/app.sh b/luci-app-passwall/root/usr/share/passwall/app.sh
index c90d95302..d644f54a5 100755
--- a/luci-app-passwall/root/usr/share/passwall/app.sh
+++ b/luci-app-passwall/root/usr/share/passwall/app.sh
@@ -1704,6 +1704,8 @@ start_dns() {
 		ln_run "$(first_type dnsmasq)" "dnsmasq_default" "/dev/null" -C ${GLOBAL_DNSMASQ_CONF} -x ${GLOBAL_ACL_PATH}/dnsmasq.pid
 		set_cache_var "ACL_default_dns_port" "${GLOBAL_DNSMASQ_PORT}"
 		DNS_REDIRECT_PORT=${GLOBAL_DNSMASQ_PORT}
+		#dhcp.leases to hosts
+		$APP_PATH/lease2hosts.sh > /dev/null 2>&1 &
 	fi
 }
 
@@ -1928,6 +1930,8 @@ acl_app() {
 								ln_run "$(first_type dnsmasq)" "dnsmasq_${sid}" "/dev/null" -C ${dnsmasq_conf} -x ${acl_path}/dnsmasq.pid
 								set_cache_var "ACL_${sid}_dns_port" "${dnsmasq_port}"
 								set_cache_var "node_${tcp_node}_$(echo -n "${tcp_proxy_mode}${remote_dns}" | md5sum | cut -d " " -f1)" "${dnsmasq_port}"
+								#dhcp.leases to hosts
+								$APP_PATH/lease2hosts.sh > /dev/null 2>&1 &
 							}
 							_redir_port=$(get_cache_var "node_${tcp_node}_redir_port")
 							_socks_port=$(get_cache_var "node_${tcp_node}_socks_port")
@@ -2155,6 +2159,7 @@ stop() {
 	}
 	rm -rf $TMP_PATH
 	rm -rf /tmp/lock/${CONFIG}_socks_auto_switch*
+	rm -rf /tmp/lock/${CONFIG}_lease2hosts*
 	echolog "清空并关闭相关程序和缓存完成。"
 	exit 0
 }
diff --git a/luci-app-passwall/root/usr/share/passwall/helper_dnsmasq.lua b/luci-app-passwall/root/usr/share/passwall/helper_dnsmasq.lua
index 165ed51fc..0247edb1c 100644
--- a/luci-app-passwall/root/usr/share/passwall/helper_dnsmasq.lua
+++ b/luci-app-passwall/root/usr/share/passwall/helper_dnsmasq.lua
@@ -693,6 +693,12 @@ function add_rule(var)
 				api.set_cache_var("DEFAULT_DNS", DEFAULT_DNS)
 			end
 		end
+
+		--dhcp.leases to hosts
+		local hosts = "/tmp/etc/" .. appname .. "_tmp/dhcp-hosts"
+		sys.call("touch " .. hosts)
+		tinsert(conf_lines, "addn-hosts=" .. hosts)
+
 		if #conf_lines > 0 then
 			local conf_out = io.open(DNSMASQ_CONF_FILE, "a")
 			conf_out:write(table.concat(conf_lines, "\n"))
diff --git a/luci-app-passwall/root/usr/share/passwall/lease2hosts.sh b/luci-app-passwall/root/usr/share/passwall/lease2hosts.sh
new file mode 100755
index 000000000..359297509
--- /dev/null
+++ b/luci-app-passwall/root/usr/share/passwall/lease2hosts.sh
@@ -0,0 +1,47 @@
+#!/bin/sh
+
+# dhcp.leases to hosts
+
+CONFIG=passwall
+TMP_PATH=/tmp/etc/${CONFIG}
+TMP_PATH2=/tmp/etc/${CONFIG}_tmp
+LOCK_FILE=/tmp/lock/${CONFIG}_lease2hosts.lock
+LEASE_FILE="/tmp/dhcp.leases"
+HOSTS_FILE="$TMP_PATH2/dhcp-hosts"
+TMP_FILE="/tmp/dhcp-hosts.tmp"
+
+exec 99>"$LOCK_FILE"
+flock -n 99
+if [ "$?" != 0 ]; then
+	exit 0
+fi
+
+reload_dnsmasq_pids() {
+	local pidfile pid
+	find $TMP_PATH/acl -type f -name 'dnsmasq.pid' 2>/dev/null | while read pidfile; do
+		if [ -s "$pidfile" ]; then
+			read pid < "$pidfile"
+			if [ -n "$pid" ] && kill -0 "$pid" 2>/dev/null; then
+				kill -HUP "$pid"
+			fi
+		fi
+	done
+}
+
+while true; do
+
+	if [ -s "$LEASE_FILE" ]; then
+		awk 'NF >= 4 {print $3" "$4}' "$LEASE_FILE" | sort > "$TMP_FILE"
+		if [ -f "$TMP_FILE" ]; then
+			if [ ! -f "$HOSTS_FILE" ] || [ "$(md5sum "$TMP_FILE" | awk '{print $1}')" != "$(md5sum "$HOSTS_FILE" | awk '{print $1}')" ]; then
+				mv "$TMP_FILE" "$HOSTS_FILE"
+				reload_dnsmasq_pids
+			else
+				rm -rf "$TMP_FILE"
+			fi
+		fi
+	fi
+
+	sleep 60
+
+done 2>/dev/null