luci-proto-wireguard: fixed bug with incorrect peer name detection

Fixed bug with incorrect peer name detection on `Status -> WireGuard`
page when more than one peer with the same public key exist:
1. Peers are now tested not only by public key, but also by
enabled/disabled status, peer host (both IP and FQDN are supported)
and port.
2. Added required `resolveip` dependency.

Closes #7342

Signed-off-by: @this-username-has-been-taken
Signed-off-by: Paul Donald <newtwen+github@gmail.com>

1 files changed, 14 insertions, 1 deletions

diff --git a/protocols/luci-proto-wireguard/root/usr/share/rpcd/ucode/luci.wireguard b/protocols/luci-proto-wireguard/root/usr/share/rpcd/ucode/luci.wireguard
index add810c8ae..c6ae13c94b 100644
--- a/protocols/luci-proto-wireguard/root/usr/share/rpcd/ucode/luci.wireguard
+++ b/protocols/luci-proto-wireguard/root/usr/share/rpcd/ucode/luci.wireguard
@@ -15,6 +15,19 @@ function command(cmd) {
 	return trim(popen(cmd)?.read?.('all'));
 }
 
+function checkPeerHost(configHost, configPort, wgHost) {
+	const ips = popen(`resolveip ${configHost} 2>/dev/null`);
+	if (ips) {
+		for (let line = ips.read('line'); length(line); line = ips.read('line')) {
+			const ip =  rtrim(line, '\n');
+			if (ip + ":" + configPort == wgHost) {
+				return true;
+			}
+		}
+	}
+	return false;
+}
+
 
 const methods = {
 	generatePsk: {
@@ -76,7 +89,7 @@ const methods = {
 						let peer_name;
 
 						uci.foreach('network', `wireguard_${last_device}`, (s) => {
-							if (s.public_key == record[1])
+							if (!s.disabled && s.public_key == record[1] && checkPeerHost(s.endpoint_host, s.endpoint_port, record[3]))
 								peer_name = s.description;
 						});