Merge "Apply correct SELinux labels to PDX endpoint and channel sockets." into oc-dev (49cab390) · Commits · e / os / android_frameworks_native-old

libs/vr/libpdx_uds/Android.bp

+3 −0

Original line number	Diff line number	Diff line
		@@ -24,6 +24,9 @@ cc_library_static {
		"libbase",
		"libpdx",
		],
		whole_static_libs: [
		"libselinux",
		],
		}

		cc_test {

libs/vr/libpdx_uds/service_endpoint.cpp

+33 −0

Original line number	Diff line number	Diff line
		@@ -11,6 +11,7 @@
		#include <android-base/strings.h>
		#include <cutils/sockets.h>
		#include <pdx/service.h>
		#include <selinux/selinux.h>
		#include <uds/channel_manager.h>
		#include <uds/client_channel_factory.h>
		#include <uds/ipc_helper.h>
		@@ -364,6 +365,36 @@ Status<void> Endpoint::ModifyChannelEvents(int channel_id, int clear_mask,
		Status<void> Endpoint::CreateChannelSocketPair(LocalHandle* local_socket,
		LocalHandle* remote_socket) {
		Status<void> status;
		char* endpoint_context = nullptr;
		// Make sure the channel socket has the correct SELinux label applied.
		// Here we get the label from the endpoint file descriptor, which should be
		// something like "u:object_r:pdx_service_endpoint_socket:s0" and replace
		// "endpoint" with "channel" to produce the channel label such as this:
		// "u:object_r:pdx_service_channel_socket:s0".
		if (fgetfilecon_raw(socket_fd_.Get(), &endpoint_context) > 0) {
		std::string channel_context = endpoint_context;
		freecon(endpoint_context);
		const std::string suffix = "_endpoint_socket";
		auto pos = channel_context.find(suffix);
		if (pos != std::string::npos) {
		channel_context.replace(pos, suffix.size(), "_channel_socket");
		} else {
		ALOGW(
		"Endpoint::CreateChannelSocketPair: Endpoint security context '%s' "
		"does not contain expected substring '%s'",
		channel_context.c_str(), suffix.c_str());
		}
		ALOGE_IF(setsockcreatecon_raw(channel_context.c_str()) == -1,
		"Endpoint::CreateChannelSocketPair: Failed to set channel socket "
		"security context: %s",
		strerror(errno));
		} else {
		ALOGE(
		"Endpoint::CreateChannelSocketPair: Failed to obtain the endpoint "
		"socket's security context: %s",
		strerror(errno));
		}

		int channel_pair[2] = {};
		if (socketpair(AF_UNIX, SOCK_STREAM \| SOCK_CLOEXEC, 0, channel_pair) == -1) {
		ALOGE("Endpoint::CreateChannelSocketPair: Failed to create socket pair: %s",
		@@ -372,6 +403,8 @@ Status<void> Endpoint::CreateChannelSocketPair(LocalHandle* local_socket,
		return status;
		}

		setsockcreatecon_raw(nullptr);

		local_socket->Reset(channel_pair[0]);
		remote_socket->Reset(channel_pair[1]);

services/surfaceflinger/surfaceflinger.rc

+3 −3

Original line number	Diff line number	Diff line
		@@ -4,6 +4,6 @@ service surfaceflinger /system/bin/surfaceflinger
		group graphics drmrpc readproc
		onrestart restart zygote
		writepid /dev/stune/foreground/tasks
		socket pdx/system/vr/display/client stream 0666 system graphics
		socket pdx/system/vr/display/manager stream 0666 system graphics
		socket pdx/system/vr/display/vsync stream 0666 system graphics
		socket pdx/system/vr/display/client stream 0666 system graphics u:object_r:pdx_display_client_endpoint_socket:s0
		socket pdx/system/vr/display/manager stream 0666 system graphics u:object_r:pdx_display_manager_endpoint_socket:s0
		socket pdx/system/vr/display/vsync stream 0666 system graphics u:object_r:pdx_display_vsync_endpoint_socket:s0

services/vr/bufferhubd/bufferhubd.rc

+1 −1

Original line number	Diff line number	Diff line
		@@ -3,4 +3,4 @@ service bufferhubd /system/bin/bufferhubd
		user system
		group system
		writepid /dev/cpuset/tasks
		socket pdx/system/buffer_hub/client stream 0660 system system
		socket pdx/system/buffer_hub/client stream 0660 system system u:object_r:pdx_bufferhub_client_endpoint_socket:s0

services/vr/performanced/performanced.rc

+1 −1

Original line number	Diff line number	Diff line
		@@ -3,4 +3,4 @@ service performanced /system/bin/performanced
		user root
		group system readproc
		writepid /dev/cpuset/tasks
		socket pdx/system/performance/client stream 0666 system system
		socket pdx/system/performance/client stream 0666 system system u:object_r:pdx_performance_client_endpoint_socket:s0