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review.blissroms.org / platform_packages_modules_DnsResolver / fd837fa06736468ba83b5c430cdf0ccbc97eb1fe
commitfd837fa06736468ba83b5c430cdf0ccbc97eb1fe[log] [tgz]
authorchenbruce <chenbruce@google.com>Tue Oct 29 18:35:36 2019 +0800
committerchenbruce <chenbruce@google.com>Wed Jan 08 11:54:49 2020 +0800
tree73db0e98e13d48aae3922dda04f5adf0fc440e3f
parentc727677fabb9b42dfaabaf9d4da1ca51454b874d [diff]
Customized hostname/address table for DNS query

- Some Android OEMs would like to create their own customized table
  (hostname/address mapping lists) that the resolver looks up before
  querying dns servers and gets the result directly.
- About DNS query, resolver checks system/etc/hosts first. If no data is
  found, resolver will query dns from the server. We add a new parameter to
  ResolverParamsParcel for OEMs to customize the table and OEMs can use
  setDnsConfigurationForNetwork to create the hostname/address lists. After
  OEMs create their own lists,the dns query will be following sequence.
  system/ect/hosts -> customized table -> dns server
- Add test cases: GetAddrInfoFromCustTable,
                  GetAddrInfoFromCustTable_InvalidInput,
                  GetAddrInfoFromCustTable_Modify

Bug: 122998288
Test: cd packages/modules/DnsResolver && atest
Change-Id: I7a2d689de74f0076f0115e0cb20fdc028903ae86
8 files changed
tree: 73db0e98e13d48aae3922dda04f5adf0fc440e3f
  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_debug.cpp
  57. res_debug.h
  58. res_init.cpp
  59. res_init.h
  60. res_mkquery.cpp
  61. res_query.cpp
  62. res_send.cpp
  63. res_send.h
  64. res_stats.cpp
  65. resolv_cache.h
  66. resolv_cache_unit_test.cpp
  67. resolv_callback_unit_test.cpp
  68. resolv_private.h
  69. resolv_tls_unit_test.cpp
  70. resolv_unit_test.cpp
  71. ResolverController.cpp
  72. ResolverController.h
  73. ResolverEventReporter.cpp
  74. ResolverEventReporter.h
  75. ResolverStats.h
  76. sethostent.cpp
  77. stats.h
  78. stats.proto
  79. TEST_MAPPING
  80. util.cpp
  81. 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.