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review.blissroms.org / platform_packages_modules_DnsResolver / a772c209875d2f6f02cfddc06eb7b97c573b6c2d
commita772c209875d2f6f02cfddc06eb7b97c573b6c2d[log] [tgz]
authorMike Yu <yumike@google.com>Mon Sep 23 17:47:21 2019 +0800
committerMike Yu <yumike@google.com>Wed Oct 09 21:44:33 2019 +0800
treebf26dc64b738a3d7482d418d1bcb30f76ae9f615
parent0a423e4b35dacada4996cbf252a4f537feb1265a [diff]
Make private DNS connect timeout configurable

It could take time to connect to a private DNS server if the system
allows 6 syn-retransmissions (net.ipv4.tcp_syn_retries = 6), which
can take time more than 2 minutes.

This change allows us to configure the timeout value via dnsresolver
binder service, and keep the default timeout value the same as the
original design.

Bug: 120182528
Bug: 141218721
Test: atest --include-subdirs packages/modules/DnsResolver
Test: m com.android.resolv
      adb install com.android.resolv
      rebooted
Change-Id: I8711a31172cfc671bf348191db363e7863831470
12 files changed
tree: bf26dc64b738a3d7482d418d1bcb30f76ae9f615
  1. aidl/
  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. DnsResolver.cpp
  14. DnsResolver.h
  15. dnsresolver_binder_test.cpp
  16. DnsResolverService.cpp
  17. DnsResolverService.h
  18. DnsTlsDispatcher.cpp
  19. DnsTlsDispatcher.h
  20. DnsTlsQueryMap.cpp
  21. DnsTlsQueryMap.h
  22. DnsTlsServer.cpp
  23. DnsTlsServer.h
  24. DnsTlsSessionCache.cpp
  25. DnsTlsSessionCache.h
  26. DnsTlsSocket.cpp
  27. DnsTlsSocket.h
  28. DnsTlsSocketFactory.h
  29. DnsTlsTransport.cpp
  30. DnsTlsTransport.h
  31. getaddrinfo.cpp
  32. getaddrinfo.h
  33. gethnamaddr.cpp
  34. gethnamaddr.h
  35. hostent.h
  36. IDnsTlsSocket.h
  37. IDnsTlsSocketFactory.h
  38. IDnsTlsSocketObserver.h
  39. libnetd_resolv.map.txt
  40. LockedQueue.h
  41. NOTICE
  42. OWNERS
  43. PREUPLOAD.cfg
  44. PrivateDnsConfiguration.cpp
  45. PrivateDnsConfiguration.h
  46. README-DoT.md
  47. README.md
  48. res_cache.cpp
  49. res_comp.cpp
  50. res_debug.cpp
  51. res_debug.h
  52. res_init.cpp
  53. res_init.h
  54. res_mkquery.cpp
  55. res_query.cpp
  56. res_send.cpp
  57. res_send.h
  58. res_state.cpp
  59. res_state_ext.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_static.h
  66. resolv_tls_unit_test.cpp
  67. resolv_unit_test.cpp
  68. ResolverController.cpp
  69. ResolverController.h
  70. ResolverEventReporter.cpp
  71. ResolverEventReporter.h
  72. ResolverStats.h
  73. sethostent.cpp
  74. stats.proto
  75. TEST_MAPPING
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.