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-rw-r--r--recovery.cpp27
1 files changed, 26 insertions, 1 deletions
diff --git a/recovery.cpp b/recovery.cpp
index 6781fa4b4..7620f1a00 100644
--- a/recovery.cpp
+++ b/recovery.cpp
@@ -81,7 +81,10 @@ static const char *INTENT_FILE = "/cache/recovery/intent";
static const char *LOG_FILE = "/cache/recovery/log";
static const char *LAST_INSTALL_FILE = "/cache/recovery/last_install";
static const char *LOCALE_FILE = "/cache/recovery/last_locale";
+static const char *CONVERT_FBE_DIR = "/tmp/convert_fbe";
+static const char *CONVERT_FBE_FILE = "/tmp/convert_fbe/convert_fbe";
static const char *CACHE_ROOT = "/cache";
+static const char *DATA_ROOT = "/data";
static const char *SDCARD_ROOT = "/sdcard";
static const char *TEMPORARY_LOG_FILE = "/tmp/recovery.log";
static const char *TEMPORARY_INSTALL_FILE = "/tmp/last_install";
@@ -522,6 +525,7 @@ typedef struct _saved_log_file {
static bool erase_volume(const char* volume) {
bool is_cache = (strcmp(volume, CACHE_ROOT) == 0);
+ bool is_data = (strcmp(volume, DATA_ROOT) == 0);
ui->SetBackground(RecoveryUI::ERASING);
ui->SetProgressType(RecoveryUI::INDETERMINATE);
@@ -576,7 +580,28 @@ static bool erase_volume(const char* volume) {
ui->Print("Formatting %s...\n", volume);
ensure_path_unmounted(volume);
- int result = format_volume(volume);
+
+ int result;
+
+ if (is_data && reason && strcmp(reason, "convert_fbe") == 0) {
+ // Create convert_fbe breadcrumb file to signal to init
+ // to convert to file based encryption, not full disk encryption
+ if (mkdir(CONVERT_FBE_DIR, 0700) != 0) {
+ ui->Print("Failed to make convert_fbe dir %s\n", strerror(errno));
+ return true;
+ }
+ FILE* f = fopen(CONVERT_FBE_FILE, "wb");
+ if (!f) {
+ ui->Print("Failed to convert to file encryption %s\n", strerror(errno));
+ return true;
+ }
+ fclose(f);
+ result = format_volume(volume, CONVERT_FBE_DIR);
+ remove(CONVERT_FBE_FILE);
+ rmdir(CONVERT_FBE_DIR);
+ } else {
+ result = format_volume(volume);
+ }
if (is_cache) {
while (head) {