su: import CyanogenMod's version for Superuser

[android-x86/system-extras.git] / su / activity.cpp

diff --git a/su/activity.cpp b/su/activity.cpp
new file mode 100644 (file)
index 0000000..f58c7d0
--- /dev/null
+++ b/su/activity.cpp
@@ -0,0 +1,149 @@
+/*
+** Copyright 2010, Adam Shanks (@ChainsDD)
+** Copyright 2008, Zinx Verituse (@zinxv)
+**
+** Licensed under the Apache License, Version 2.0 (the "License");
+** you may not use this file except in compliance with the License.
+** You may obtain a copy of the License at
+**
+**     http://www.apache.org/licenses/LICENSE-2.0
+**
+** Unless required by applicable law or agreed to in writing, software
+** distributed under the License is distributed on an "AS IS" BASIS,
+** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+** See the License for the specific language governing permissions and
+** limitations under the License.
+*/
+
+#include <unistd.h>
+#include <android_runtime/ActivityManager.h>
+#include <binder/IBinder.h>
+#include <binder/IServiceManager.h>
+#include <binder/Parcel.h>
+#include <utils/String8.h>
+#include <assert.h>
+
+extern "C" {
+#include "su.h"
+#include <private/android_filesystem_config.h>
+#include <cutils/properties.h>
+}
+
+using namespace android;
+
+static const int BROADCAST_INTENT_TRANSACTION = IBinder::FIRST_CALL_TRANSACTION + 13;
+
+static const int NULL_TYPE_ID = 0;
+
+static const int VAL_STRING = 0;
+static const int VAL_INTEGER = 1;
+
+static const int START_SUCCESS = 0;
+
+int send_intent(struct su_initiator *from, struct su_request *to, const char *socket_path, int allow, int type)
+{
+    char sdk_version_prop[PROPERTY_VALUE_MAX] = "0";
+    property_get("ro.build.version.sdk", sdk_version_prop, "0");
+
+    int sdk_version = atoi(sdk_version_prop);
+
+    sp<IServiceManager> sm = defaultServiceManager();
+    sp<IBinder> am = sm->checkService(String16("activity"));
+    assert(am != NULL);
+
+    Parcel data, reply;
+    data.writeInterfaceToken(String16("android.app.IActivityManager"));
+
+    data.writeStrongBinder(NULL); /* caller */
+
+    /* intent */
+    if (type == 0) {
+        data.writeString16(String16("com.noshufou.android.su.REQUEST")); /* action */
+    } else {
+        data.writeString16(String16("com.noshufou.android.su.RESULT")); /* action */
+    }
+    data.writeInt32(NULL_TYPE_ID); /* Uri - data */
+    data.writeString16(NULL, 0); /* type */
+    data.writeInt32(0); /* flags */
+    if (sdk_version >= 4) {
+        // added in donut
+        data.writeString16(NULL, 0); /* package name - DONUT ONLY, NOT IN CUPCAKE. */
+    }
+    data.writeString16(NULL, 0); /* ComponentName - package */
+    data.writeInt32(0); /* Categories - size */
+    if (sdk_version >= 7) {
+        // added in eclair rev 7
+        data.writeInt32(0);
+    }
+    if (sdk_version >= 15) {
+        // added in IceCreamSandwich 4.0.3
+        data.writeInt32(0); /* Selector */
+    }
+    { /* Extras */
+        data.writeInt32(-1); /* dummy, will hold length */
+        int oldPos = data.dataPosition();
+        data.writeInt32(0x4C444E42); // 'B' 'N' 'D' 'L'
+        { /* writeMapInternal */
+            data.writeInt32(7); /* writeMapInternal - size */
+
+            data.writeInt32(VAL_STRING);
+            data.writeString16(String16("caller_uid"));
+            data.writeInt32(VAL_INTEGER);
+            data.writeInt32(from->uid);
+
+            data.writeInt32(VAL_STRING);
+            data.writeString16(String16("caller_bin"));
+            data.writeInt32(VAL_STRING);
+            data.writeString16(String16(from->bin));
+
+            data.writeInt32(VAL_STRING);
+            data.writeString16(String16("desired_uid"));
+            data.writeInt32(VAL_INTEGER);
+            data.writeInt32(to->uid);
+
+            data.writeInt32(VAL_STRING);
+            data.writeString16(String16("desired_cmd"));
+            data.writeInt32(VAL_STRING);
+            data.writeString16(String16(to->command));
+
+            data.writeInt32(VAL_STRING);
+            data.writeString16(String16("socket"));
+            data.writeInt32(VAL_STRING);
+            data.writeString16(String16(socket_path));
+
+            data.writeInt32(VAL_STRING);
+            data.writeString16(String16("allow"));
+            data.writeInt32(VAL_INTEGER);
+            data.writeInt32(allow);
+
+            data.writeInt32(VAL_STRING);
+            data.writeString16(String16("version_code"));
+            data.writeInt32(VAL_INTEGER);
+            data.writeInt32(VERSION_CODE);
+        }
+        int newPos = data.dataPosition();
+        data.setDataPosition(oldPos - 4);
+        data.writeInt32(newPos - oldPos); /* length */
+        data.setDataPosition(newPos);
+    }
+
+    data.writeString16(NULL, 0); /* resolvedType */
+
+    data.writeInt32(-1); /* Not sure what this is for, but it prevents a warning */
+
+    data.writeStrongBinder(NULL); /* resultTo */
+    data.writeInt32(-1); /* resultCode */
+    data.writeString16(NULL, 0); /* resultData */
+
+    data.writeInt32(-1); /* resultExtras */
+
+    data.writeString16(String16("com.noshufou.android.su.RESPOND")); /* perm */
+    data.writeInt32(0); /* serialized */
+    data.writeInt32(0); /* sticky */
+    data.writeInt32(-1);
+
+    status_t ret = am->transact(BROADCAST_INTENT_TRANSACTION, data, &reply);
+    if (ret < START_SUCCESS) return -1;
+
+    return 0;
+}