| 6907891b1f2d706fa2bd6c40b986f73e5666e00e |
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04-Apr-2011 |
Elliott Hughes <enh@google.com> |
You can't fsync(2) /dev/urandom...
...so don't even try. Doing so leads to this:
W/EntropyService( 1586): unable to load initial entropy (first boot?)
W/EntropyService( 1586): java.io.SyncFailedException: fsync failed: EINVAL (Invalid argument)
W/EntropyService( 1586): at java.io.FileDescriptor.sync(FileDescriptor.java:73)
W/EntropyService( 1586): at java.io.RandomAccessFile.write(RandomAccessFile.java:694)
W/EntropyService( 1586): at java.io.RandomAccessFile.write(RandomAccessFile.java:676)
W/EntropyService( 1586): at com.android.server.RandomBlock.toDataOut(RandomBlock.java:88)
W/EntropyService( 1586): at com.android.server.RandomBlock.toFile(RandomBlock.java:70)
W/EntropyService( 1586): at com.android.server.EntropyService.loadInitialEntropy(EntropyService.java:99)
W/EntropyService( 1586): at com.android.server.EntropyService.<init>(EntropyService.java:86)
W/EntropyService( 1586): at com.android.server.EntropyService.<init>(EntropyService.java:76)
W/EntropyService( 1586): at com.android.server.ServerThread.run(SystemServer.java:139)
W/EntropyService( 1586): Caused by: libcore.io.ErrnoException: fsync failed: EINVAL (Invalid argument)
W/EntropyService( 1586): at libcore.io.Posix.fsync(Native Method)
W/EntropyService( 1586): at libcore.io.BlockGuardOs.fsync(BlockGuardOs.java:39)
W/EntropyService( 1586): at java.io.FileDescriptor.sync(FileDescriptor.java:71)
W/EntropyService( 1586): ... 8 more
Change-Id: I598a9456eccec0ca087f1568d47b6b8e531de8a8
/frameworks/base/services/java/com/android/server/EntropyService.java
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| b91ec410c8ecd09390e7122115e2ab6b7aafefb8 |
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27-Sep-2010 |
Nick Kralevich <nnk@google.com> |
squeeze a few more bits of randomness into /dev/random
Change-Id: Ida30c33985411f353c828b43ea26ca1b7e6502af
/frameworks/base/services/java/com/android/server/EntropyService.java
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| 93a68398b661c02d6c417a2a04e64a6750a9a119 |
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20-Mar-2010 |
Nick Kralevich <nnk@google.com> |
Unittests for EntropyService. Make EntropyService more testable.
I've been meaning to write these tests for a long time...
Use "runtest frameworks-services" to run these tests.
Change-Id: I3a3cb7eda547f4a790f38be884b4a583426c7326
/frameworks/base/services/java/com/android/server/EntropyService.java
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| 8a9b22056b13477f59df934928c00c58b5871c95 |
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27-Feb-2010 |
Joe Onorato <joeo@android.com> |
Switch the services library to using the new Slog
/frameworks/base/services/java/com/android/server/EntropyService.java
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| b8cba95ffd4d9be0edace7a9eb42286e668ef3e3 |
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19-Jun-2009 |
Nick Kralevich <nnk@google.com> |
At boot time, add additional per-device information to the
kernel randomness pool. This helps increase the
quality / uniqueness of the random numbers, and is especially
important during the device's first boot, when insufficient
randomness is available.
/frameworks/base/services/java/com/android/server/EntropyService.java
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| 4fb256117ca271e3e37284a19b663d116f6ec20c |
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18-Jun-2009 |
Nick Kralevich <nnk@google.com> |
load entropy data at boot. Periodically write entropy data to disk.
/frameworks/base/services/java/com/android/server/EntropyService.java
|