[rpc_binder][test] Merge unixBootstrapFd and socketFd in binderRpcTest

This is a follow-up of the cl aosp/2267564.

Test: atest binderRpcTest
Change-Id: I5bf68197aa5f34cc3f700dcc70419fcc0acfb1ef

3 files changed, 13 insertions, 13 deletions

diff --git a/libs/binder/tests/BinderRpcTestServerConfig.aidl b/libs/binder/tests/BinderRpcTestServerConfig.aidl
index aac4b04dae..b2e0ef21c7 100644
--- a/libs/binder/tests/BinderRpcTestServerConfig.aidl
+++ b/libs/binder/tests/BinderRpcTestServerConfig.aidl
@@ -21,7 +21,6 @@ parcelable BinderRpcTestServerConfig {
     int rpcSecurity;
     int serverVersion;
     int vsockPort;
-    int unixBootstrapFd; // Inherited from parent
-    int socketFd;
+    int socketFd; // Inherited from the parent process.
     @utf8InCpp String addr;
 }
diff --git a/libs/binder/tests/binderRpcTest.cpp b/libs/binder/tests/binderRpcTest.cpp
index 79bd9d4993..68a827bb3e 100644
--- a/libs/binder/tests/binderRpcTest.cpp
+++ b/libs/binder/tests/binderRpcTest.cpp
@@ -252,17 +252,19 @@ std::unique_ptr<ProcessSession> BinderRpc::createRpcTestSocketServerProcessEtc(
                                                    singleThreaded ? "_single_threaded" : "",
                                                    noKernel ? "_no_kernel" : "");
 
-    base::unique_fd bootstrapClientFd, bootstrapServerFd, socketFd;
-    // Do not set O_CLOEXEC, bootstrapServerFd needs to survive fork/exec.
-    // This is because we cannot pass ParcelFileDescriptor over a pipe.
-    if (!base::Socketpair(SOCK_STREAM, &bootstrapClientFd, &bootstrapServerFd)) {
-        int savedErrno = errno;
-        LOG(FATAL) << "Failed socketpair(): " << strerror(savedErrno);
-    }
+    base::unique_fd bootstrapClientFd, socketFd;
+
     auto addr = allocateSocketAddress();
     // Initializes the socket before the fork/exec.
     if (socketType == SocketType::UNIX_RAW) {
         socketFd = initUnixSocket(addr);
+    } else if (socketType == SocketType::UNIX_BOOTSTRAP) {
+        // Do not set O_CLOEXEC, bootstrapServerFd needs to survive fork/exec.
+        // This is because we cannot pass ParcelFileDescriptor over a pipe.
+        if (!base::Socketpair(SOCK_STREAM, &bootstrapClientFd, &socketFd)) {
+            int savedErrno = errno;
+            LOG(FATAL) << "Failed socketpair(): " << strerror(savedErrno);
+        }
     }
 
     auto ret = std::make_unique<LinuxProcessSession>(
@@ -280,7 +282,6 @@ std::unique_ptr<ProcessSession> BinderRpc::createRpcTestSocketServerProcessEtc(
     serverConfig.serverVersion = serverVersion;
     serverConfig.vsockPort = allocateVsockPort();
     serverConfig.addr = addr;
-    serverConfig.unixBootstrapFd = bootstrapServerFd.get();
     serverConfig.socketFd = socketFd.get();
     for (auto mode : options.serverSupportedFileDescriptorTransportModes) {
         serverConfig.serverSupportedFileDescriptorTransportModes.push_back(
diff --git a/libs/binder/tests/binderRpcTestService.cpp b/libs/binder/tests/binderRpcTestService.cpp
index cc40995a52..995e761ec6 100644
--- a/libs/binder/tests/binderRpcTestService.cpp
+++ b/libs/binder/tests/binderRpcTestService.cpp
@@ -42,7 +42,7 @@ int main(int argc, const char* argv[]) {
     server->setSupportedFileDescriptorTransportModes(serverSupportedFileDescriptorTransportModes);
 
     unsigned int outPort = 0;
-    base::unique_fd unixBootstrapFd(serverConfig.unixBootstrapFd);
+    base::unique_fd socketFd(serverConfig.socketFd);
 
     switch (socketType) {
         case SocketType::PRECONNECTED:
@@ -52,10 +52,10 @@ int main(int argc, const char* argv[]) {
                     << serverConfig.addr;
             break;
         case SocketType::UNIX_BOOTSTRAP:
-            CHECK_EQ(OK, server->setupUnixDomainSocketBootstrapServer(std::move(unixBootstrapFd)));
+            CHECK_EQ(OK, server->setupUnixDomainSocketBootstrapServer(std::move(socketFd)));
             break;
         case SocketType::UNIX_RAW:
-            CHECK_EQ(OK, server->setupRawSocketServer(base::unique_fd(serverConfig.socketFd)));
+            CHECK_EQ(OK, server->setupRawSocketServer(std::move(socketFd)));
             break;
         case SocketType::VSOCK:
             CHECK_EQ(OK, server->setupVsockServer(serverConfig.vsockPort));