resolv_integration_test: Test message compression

Per RFC 1035 section 4.1.4, the domain name could be preseneted as
either:
- a sequence of labels ending in a zero octet
- a pointer
- a sequence of labels ending with a pointer

The first presentation has been verified in existing test cases.
This commit verifies the remaining presentation which uses a pointer.

Test: cd packages/modules/DnsResolver && atest
Change-Id: I705a3f5c96920cc0431aae4f8537db07e280bd1b
3 files changed
tree: bb7625ed1516ba68e634abb5fbb4ce8e7362fa18
  1. aidl/
  2. apex/
  3. binder/
  4. include/
  5. tests/
  6. .editorconfig
  7. Android.bp
  8. Dns64Configuration.cpp
  9. Dns64Configuration.h
  10. DnsProxyListener.cpp
  11. DnsProxyListener.h
  12. DnsResolver.cpp
  13. DnsResolver.h
  14. dnsresolver_binder_test.cpp
  15. DnsResolverService.cpp
  16. DnsResolverService.h
  17. DnsStats.cpp
  18. DnsStats.h
  19. DnsStatsTest.cpp
  20. DnsTlsDispatcher.cpp
  21. DnsTlsDispatcher.h
  22. DnsTlsQueryMap.cpp
  23. DnsTlsQueryMap.h
  24. DnsTlsServer.cpp
  25. DnsTlsServer.h
  26. DnsTlsSessionCache.cpp
  27. DnsTlsSessionCache.h
  28. DnsTlsSocket.cpp
  29. DnsTlsSocket.h
  30. DnsTlsSocketFactory.h
  31. DnsTlsTransport.cpp
  32. DnsTlsTransport.h
  33. getaddrinfo.cpp
  34. getaddrinfo.h
  35. gethnamaddr.cpp
  36. gethnamaddr.h
  37. hostent.h
  38. IDnsTlsSocket.h
  39. IDnsTlsSocketFactory.h
  40. IDnsTlsSocketObserver.h
  41. libnetd_resolv.map.txt
  42. LockedQueue.h
  43. NOTICE
  44. OWNERS
  45. PREUPLOAD.cfg
  46. PrivateDnsConfiguration.cpp
  47. PrivateDnsConfiguration.h
  48. README-DoT.md
  49. README.md
  50. res_cache.cpp
  51. res_comp.cpp
  52. res_debug.cpp
  53. res_debug.h
  54. res_init.cpp
  55. res_init.h
  56. res_mkquery.cpp
  57. res_query.cpp
  58. res_send.cpp
  59. res_send.h
  60. res_stats.cpp
  61. resolv_cache.h
  62. resolv_cache_unit_test.cpp
  63. resolv_integration_test.cpp
  64. resolv_private.h
  65. resolv_tls_unit_test.cpp
  66. resolv_unit_test.cpp
  67. ResolverController.cpp
  68. ResolverController.h
  69. ResolverEventReporter.cpp
  70. ResolverEventReporter.h
  71. ResolverStats.h
  72. sethostent.cpp
  73. stats.proto
  74. TEST_MAPPING
  75. util.cpp
  76. util.h
README.md

Logging

This code uses LOG(X) for logging. Log levels are VERBOSE,DEBUG,INFO,WARNING and ERROR. The default setting is WARNING and logs relate to WARNING and ERROR will be shown. If you want to enable the DEBUG level logs, using following command. adb shell service call dnsresolver 10 i32 1 VERBOSE 0 DEBUG 1 INFO 2 WARNING 3 ERROR 4 Verbose resolver logs could contain PII -- do NOT enable in production builds.