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FBE for Pixel 2

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Includes various minor fixes for building in Android 8 trees with r23+ tag

Update FBE extended header in libtar to version 2 and include the entire
ext4_encryption_policy structure now after translating the policy.

See this post for more details:
https://plus.google.com/u/1/+DeesTroy/posts/i33ygUi7tiu

Change-Id: I2af981e51f459b17fcd895fb8c2d3f6c8200e24b
This commit is contained in:
Ethan Yonker
2017-11-28 16:03:41 -06:00
parent dc864ec8ac
commit fefe5915b0
36 changed files with 2381 additions and 112 deletions
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partition.cpp
+8 -1
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@@ -656,7 +656,9 @@ void TWPartition::Setup_Data_Partition(bool Display_Error) {
//ExcludeAll(Mount_Point + "/user_de");
//ExcludeAll(Mount_Point + "/misc/profiles/cur/0"); // might be important later
ExcludeAll(Mount_Point + "/misc/gatekeeper");
ExcludeAll(Mount_Point + "/misc/keystore");
ExcludeAll(Mount_Point + "/drm/kek.dat");
ExcludeAll(Mount_Point + "/system_de/0/spblob"); // contains data needed to decrypt pixel 2
int retry_count = 3;
while (!Decrypt_DE() && --retry_count)
usleep(2000);
@@ -668,7 +670,12 @@ void TWPartition::Setup_Data_Partition(bool Display_Error) {
DataManager::SetValue(TW_IS_FBE, 1);
DataManager::SetValue(TW_IS_ENCRYPTED, 1);
string filename;
DataManager::SetValue(TW_CRYPTO_PWTYPE, Get_Password_Type(0, filename));
int pwd_type = Get_Password_Type(0, filename);
if (pwd_type < 0) {
LOGERR("This TWRP does not have synthetic password decrypt support\n");
pwd_type = 0; // default password
}
DataManager::SetValue(TW_CRYPTO_PWTYPE, pwd_type);
DataManager::SetValue(TW_CRYPTO_PASSWORD, "");
DataManager::SetValue("tw_crypto_display", "");
}