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Merge "root: Fix an issue when volume length from fs_mgr is negative." am: 5ce9fe355c

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am: 25e27f48db

Change-Id: I1a9171a1f31384915c7a3b72785265b85a697979
This commit is contained in:
Jin Qian
2017-11-20 18:54:48 +00:00
committed by android-build-merger
parent 2a8e4095cb 25e27f48db
commit 7a1abb9279
1 changed files with 7 additions and 4 deletions
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roots.cpp
+7 -4
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@@ -262,17 +262,20 @@ int format_volume(const char* volume, const char* directory) {
}
int64_t length = 0;
if (v->length != 0) {
if (v->length > 0) {
length = v->length;
} else if (v->key_loc != nullptr && strcmp(v->key_loc, "footer") == 0) {
} else if (v->length < 0 ||
(v->key_loc != nullptr && strcmp(v->key_loc, "footer") == 0)) {
android::base::unique_fd fd(open(v->blk_device, O_RDONLY));
if (fd == -1) {
PLOG(ERROR) << "format_volume: failed to open " << v->blk_device;
return -1;
}
length = get_file_size(fd.get(), CRYPT_FOOTER_OFFSET);
length =
get_file_size(fd.get(), v->length ? -v->length : CRYPT_FOOTER_OFFSET);
if (length <= 0) {
LOG(ERROR) << "get_file_size: invalid size " << length << " for " << v->blk_device;
LOG(ERROR) << "get_file_size: invalid size " << length << " for "
<< v->blk_device;
return -1;
}
}