adb: add option to disable kill-server.
In the post-apocalypse, it's increasingly common for people to use ssh
port forwarding to use an adb client with a remote adb server. This
results in `adb kill-server` being catastrophic, because the client has
no way of restarting the server on the other end. Android Studio in
particular has an unforunate habit of trying to manage adb's life cycle
such that starting or exiting Studio will result in a kill-server.
Add the ADB_REJECT_KILL_SERVER environment variable which ignores
kill-server, to make this scenario a bit better.
Bug: http://b/152251952
Test: ADB_REJECT_KILL_SERVER=1 adb start-server; adb kill-server
Change-Id: I5533a6dcbdb9220526a6fcf9ca31d9fcef1cec17
diff --git a/adb/adb.cpp b/adb/adb.cpp
index 6c03f74..0518e9d 100644
--- a/adb/adb.cpp
+++ b/adb/adb.cpp
@@ -1071,19 +1071,25 @@
return 0;
}
+static bool g_reject_kill_server = false;
+void adb_set_reject_kill_server(bool value) {
+ g_reject_kill_server = value;
+}
+
HostRequestResult handle_host_request(std::string_view service, TransportType type,
const char* serial, TransportId transport_id, int reply_fd,
asocket* s) {
if (service == "kill") {
- fprintf(stderr, "adb server killed by remote request\n");
- fflush(stdout);
+ if (g_reject_kill_server) {
+ LOG(WARNING) << "adb server ignoring kill-server";
+ SendFail(reply_fd, "kill-server rejected by remote server");
+ } else {
+ fprintf(stderr, "adb server killed by remote request\n");
+ SendOkay(reply_fd);
- // Send a reply even though we don't read it anymore, so that old versions
- // of adb that do read it don't spew error messages.
- SendOkay(reply_fd);
-
- // Rely on process exit to close the socket for us.
- exit(0);
+ // Rely on process exit to close the socket for us.
+ exit(0);
+ }
}
LOG(DEBUG) << "handle_host_request(" << service << ")";