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review.blissroms.org / platform_packages_modules_DnsResolver / 3977d487955d887c29162717a2cca726ccbf0a60
commit3977d487955d887c29162717a2cca726ccbf0a60[log] [tgz]
authorMike Yu <yumike@google.com>Wed Feb 26 17:18:57 2020 +0800
committerMike Yu <yumike@google.com>Wed Feb 26 17:49:46 2020 +0800
treebdd692dc8d5aabcce699e19df96c8c1c94823bba
parentecc52827de6324fa2ae829ad96c1ce1c50d97d29 [diff]
Extend ResolverTest.BrokenEdns to cover using EDNS0 for cleartext DNS

In opportunistic mode, if the resolver somehow fallbacks to cleartext
DNS servers, it uses EDNS0 to send queries. If the server can't
recognize EDNS0, the resolver retries without EDNS0 only when the
server can make a response with rcode FORMERR.

Add more testcases for ResolverTest.BrokenEdns to ensure the behavior
"retries without EDNS0 when receiving rcode FORMERR" correct.

Bug: 120257033
Test: resolv_integration_test passed
Change-Id: I373fc134a56abc12dc3ff24b3cd144c9a37f4844
1 file changed
tree: bdd692dc8d5aabcce699e19df96c8c1c94823bba
  1. aidl_api/
  2. apex/
  3. binder/
  4. include/
  5. tests/
  6. .clang-format ⇨ ../../../build/soong/scripts/system-clang-format
  7. .editorconfig
  8. Android.bp
  9. Dns64Configuration.cpp
  10. Dns64Configuration.h
  11. DnsProxyListener.cpp
  12. DnsProxyListener.h
  13. DnsQueryLog.cpp
  14. DnsQueryLog.h
  15. DnsQueryLogTest.cpp
  16. DnsResolver.cpp
  17. DnsResolver.h
  18. DnsResolverService.cpp
  19. DnsResolverService.h
  20. DnsStats.cpp
  21. DnsStats.h
  22. DnsStatsTest.cpp
  23. DnsTlsDispatcher.cpp
  24. DnsTlsDispatcher.h
  25. DnsTlsQueryMap.cpp
  26. DnsTlsQueryMap.h
  27. DnsTlsServer.cpp
  28. DnsTlsServer.h
  29. DnsTlsSessionCache.cpp
  30. DnsTlsSessionCache.h
  31. DnsTlsSocket.cpp
  32. DnsTlsSocket.h
  33. DnsTlsSocketFactory.h
  34. DnsTlsTransport.cpp
  35. DnsTlsTransport.h
  36. getaddrinfo.cpp
  37. getaddrinfo.h
  38. gethnamaddr.cpp
  39. gethnamaddr.h
  40. hostent.h
  41. IDnsTlsSocket.h
  42. IDnsTlsSocketFactory.h
  43. IDnsTlsSocketObserver.h
  44. libnetd_resolv.map.txt
  45. LockedQueue.h
  46. NOTICE
  47. OWNERS
  48. params.h
  49. PREUPLOAD.cfg
  50. PrivateDnsConfiguration.cpp
  51. PrivateDnsConfiguration.h
  52. README-DoT.md
  53. README.md
  54. res_cache.cpp
  55. res_comp.cpp
  56. res_comp.h
  57. res_debug.cpp
  58. res_debug.h
  59. res_init.cpp
  60. res_init.h
  61. res_mkquery.cpp
  62. res_query.cpp
  63. res_send.cpp
  64. res_send.h
  65. res_stats.cpp
  66. resolv_cache.h
  67. resolv_cache_unit_test.cpp
  68. resolv_callback_unit_test.cpp
  69. resolv_private.h
  70. resolv_tls_unit_test.cpp
  71. resolv_unit_test.cpp
  72. ResolverController.cpp
  73. ResolverController.h
  74. ResolverEventReporter.cpp
  75. ResolverEventReporter.h
  76. ResolverStats.h
  77. sethostent.cpp
  78. stats.h
  79. stats.proto
  80. TEST_MAPPING
  81. util.cpp
  82. 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.