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authorTianjie Xu <xunchang@google.com>2018-05-11 19:41:44 +0200
committerTianjie Xu <xunchang@google.com>2018-07-25 23:15:22 +0200
commit4d9e62d8a07b233da4d82a42eb30de64cf2b45bd (patch)
tree85a75362ebbdcc93f88721bd411bdae873586068 /update_verifier/include
parentMerge "applypatch: Change applypatch command-line arguments." (diff)
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Diffstat (limited to 'update_verifier/include')
-rw-r--r--update_verifier/include/update_verifier/update_verifier.h10
1 files changed, 9 insertions, 1 deletions
diff --git a/update_verifier/include/update_verifier/update_verifier.h b/update_verifier/include/update_verifier/update_verifier.h
index 16b394e98..534384e1d 100644
--- a/update_verifier/include/update_verifier/update_verifier.h
+++ b/update_verifier/include/update_verifier/update_verifier.h
@@ -20,5 +20,13 @@
int update_verifier(int argc, char** argv);
-// Exposed for testing purpose.
+// Returns true to indicate a passing verification (or the error should be ignored); Otherwise
+// returns false on fatal errors, where we should reject the current boot and trigger a fallback.
+// This function tries to process the care_map.txt as protobuf message; and falls back to use the
+// plain text format if the parse failed.
+//
+// Note that update_verifier should be backward compatible to not reject care_map.txt from old
+// releases, which could otherwise fail to boot into the new release. For example, we've changed
+// the care_map format between N and O. An O update_verifier would fail to work with N care_map.txt.
+// This could be a result of sideloading an O OTA while the device having a pending N update.
bool verify_image(const std::string& care_map_name);