Allow uncrypt to work without socket communication
It was inconvenient to uncrypt a update package under adb shell
because the uncrypt executable required a socket to start its job.
Add a workaround to allow uncrypt executes without socket
communication.
Test: run uncrypt under adb shell, and the block map generates successfully
Bug: 29906218
Change-Id: Ibc328b31636d925dc429ede8dcec7392a721dd53
(cherry picked from commit 28c1e5d3aa9610db6e141380b1435937fc7f07db)
diff --git a/uncrypt/uncrypt.cpp b/uncrypt/uncrypt.cpp
index a5d692b..e1b6a1c 100644
--- a/uncrypt/uncrypt.cpp
+++ b/uncrypt/uncrypt.cpp
@@ -210,6 +210,11 @@
}
static bool write_status_to_socket(int status, int socket) {
+ // If socket equals -1, uncrypt is in debug mode without socket communication.
+ // Skip writing and return success.
+ if (socket == -1) {
+ return true;
+ }
int status_out = htonl(status);
return android::base::WriteFully(socket, &status_out, sizeof(int));
}
@@ -566,7 +571,7 @@
}
int main(int argc, char** argv) {
- enum { UNCRYPT, SETUP_BCB, CLEAR_BCB } action;
+ enum { UNCRYPT, SETUP_BCB, CLEAR_BCB, UNCRYPT_DEBUG } action;
const char* input_path = nullptr;
const char* map_file = CACHE_BLOCK_MAP.c_str();
@@ -579,7 +584,7 @@
} else if (argc == 3) {
input_path = argv[1];
map_file = argv[2];
- action = UNCRYPT;
+ action = UNCRYPT_DEBUG;
} else {
usage(argv[0]);
return 2;
@@ -593,6 +598,17 @@
return 1;
}
+ if (action == UNCRYPT_DEBUG) {
+ LOG(INFO) << "uncrypt called in debug mode, skip socket communication\n";
+ bool success = uncrypt_wrapper(input_path, map_file, -1);
+ if (success) {
+ LOG(INFO) << "uncrypt succeeded\n";
+ } else{
+ LOG(INFO) << "uncrypt failed\n";
+ }
+ return success ? 0 : 1;
+ }
+
// c3. The socket is created by init when starting the service. uncrypt
// will use the socket to communicate with its caller.
android::base::unique_fd service_socket(android_get_control_socket(UNCRYPT_SOCKET.c_str()));