Implement the new v4 signing scheme in adb
To be submitted along with changes in apksigner tool and the framework.
Merged to AOSP after that.
Test: adb install --incremental <apk>
go/apk-v4-signature-format
Bug: b/151241461
Change-Id: I26e187f8e389e31e2759037057b96fc6c9cb1e94
diff --git a/adb/client/incremental.cpp b/adb/client/incremental.cpp
index 6499d46..3ceb374 100644
--- a/adb/client/incremental.cpp
+++ b/adb/client/incremental.cpp
@@ -45,33 +45,29 @@
return result;
}
-static inline int32_t read_be_int32(borrowed_fd fd) {
- return int32_t(be32toh(read_int32(fd)));
-}
-
static inline void append_int(borrowed_fd fd, std::vector<char>* bytes) {
- int32_t be_val = read_int32(fd);
+ int32_t le_val = read_int32(fd);
auto old_size = bytes->size();
- bytes->resize(old_size + sizeof(be_val));
- memcpy(bytes->data() + old_size, &be_val, sizeof(be_val));
+ bytes->resize(old_size + sizeof(le_val));
+ memcpy(bytes->data() + old_size, &le_val, sizeof(le_val));
}
static inline void append_bytes_with_size(borrowed_fd fd, std::vector<char>* bytes) {
- int32_t be_size = read_int32(fd);
- int32_t size = int32_t(be32toh(be_size));
+ int32_t le_size = read_int32(fd);
+ int32_t size = int32_t(le32toh(le_size));
auto old_size = bytes->size();
- bytes->resize(old_size + sizeof(be_size) + size);
- memcpy(bytes->data() + old_size, &be_size, sizeof(be_size));
- ReadFully(fd, bytes->data() + old_size + sizeof(be_size), size);
+ bytes->resize(old_size + sizeof(le_size) + size);
+ memcpy(bytes->data() + old_size, &le_size, sizeof(le_size));
+ ReadFully(fd, bytes->data() + old_size + sizeof(le_size), size);
}
static inline std::pair<std::vector<char>, int32_t> read_id_sig_headers(borrowed_fd fd) {
std::vector<char> result;
append_int(fd, &result); // version
- append_bytes_with_size(fd, &result); // verityRootHash
- append_bytes_with_size(fd, &result); // v3Digest
- append_bytes_with_size(fd, &result); // pkcs7SignatureBlock
- auto tree_size = read_be_int32(fd); // size of the verity tree
+ append_bytes_with_size(fd, &result); // hashingInfo
+ append_bytes_with_size(fd, &result); // signingInfo
+ auto le_tree_size = read_int32(fd);
+ auto tree_size = int32_t(le32toh(le_tree_size)); // size of the verity tree
return {std::move(result), tree_size};
}