feat: add comprehensive DNS handler e2e tests

Adds 22 DNS e2e subtests across 8 test methods covering: upstream resolution (A, AAAA, multi-A), TCP mode, bypass rules, host mapper, exchange failure (graceful error recovery), rate limiter wiring, invalid query handling, and DNS over TLS (mode: tls). Includes two authoritative DNS responders (UDP/TCP), a standalone DNS query client, and a TLS DNS query script.
2026-06-27 00:21:37 +08:00
parent 590c6f48bd
commit a0427be086
13 changed files with 989 additions and 0 deletions
@@ -0,0 +1,19 @@
+services:
+- name: dns
+  addr: :1053
+  handler:
+    type: dns
+    metadata:
+      # No upstream — host mapper resolves before exchanger is ever reached.
+      timeout: 2s
+  listener:
+    type: dns
+  hosts: my-hosts
+
+hosts:
+- name: my-hosts
+  mappings:
+  - ip: 10.0.0.100
+    hostname: mapped.example.com
+  - ip: 192.168.1.200
+    hostname: aaaa.mapped.example.com