Update Magisk Manager

Close #381

build.gradle

@@ -7,7 +7,7 @@ buildscript {
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.0.1'
+        classpath 'com.android.tools.build:gradle:3.1.0'
         
 
         // NOTE: Do not place your application dependencies here; they belong
@@ -19,9 +19,16 @@ allprojects {
     repositories {
         google()
         jcenter()
+        maven { url "https://jitpack.io" }
     }
 }
 
+ext {
+    compileSdkVersion = 27
+    buildToolsVersion = "27.0.3"
+    supportLibVersion = "27.1.0"
+}
+
 task clean(type: Delete) {
     delete rootProject.buildDir
 }

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
-#Mon Dec 04 11:24:34 CST 2017
+#Tue Mar 27 21:17:43 CST 2018
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.4-all.zip

native/build.gradle

@@ -1,7 +1,8 @@
 apply plugin: 'com.android.library'
 
 android {
-    compileSdkVersion 27
+    compileSdkVersion rootProject.ext.compileSdkVersion
+    buildToolsVersion rootProject.ext.buildToolsVersion
 
     externalNativeBuild {
         ndkBuild {

native/jni/core/daemon.c

@@ -127,6 +127,7 @@ void daemon_init() {
 	rm_rf("/data/magisk");
 	unlink("/data/magisk.img");
 	unlink("/data/magisk_debug.log");
+	xmkdir("/data/adb", 0700);
 	chmod("/data/adb", 0700);
 
 	LOGI("* Creating /sbin overlay");
@@ -178,11 +179,6 @@ void daemon_init() {
 
 	close(root);
 
-	// Backward compatibility
-	xsymlink(DATABIN, "/data/magisk");
-	xsymlink(MAINIMG, "/data/magisk.img");
-	xsymlink(MOUNTPOINT, "/magisk");
-
 	xmount(NULL, "/", NULL, MS_REMOUNT | MS_RDONLY, NULL);
 
 	LOGI("* Mounting mirrors");

native/jni/magiskboot/bootimg.c

@@ -168,7 +168,7 @@ int parse_img(const char *image, boot_img *boot) {
 
 			if (pos < boot->map_size) {
 				boot->tail = head + pos;
-				boot->tail_size = boot->map_size - pos;
+				boot->tail_size = boot->map_size - (boot->tail - boot->map_addr);
 			}
 
 			// Check tail info, currently only for LG Bump and Samsung SEANDROIDENFORCE

native/jni/magiskhide/magiskhide.h

@@ -4,7 +4,6 @@
 #include <pthread.h>
 
 #define TERM_THREAD SIGUSR1
-#define HIDE_DONE   SIGUSR2
 
 // Kill process
 void kill_proc(int pid);

native/jni/magiskhide/proc_monitor.c

@@ -20,7 +20,7 @@
 #include "magiskhide.h"
 
 static char init_ns[32], zygote_ns[2][32], cache_block[256];
-static int hide_queue = 0, zygote_num, has_cache = 1, pipefd[2] = { -1, -1 };
+static int zygote_num, has_cache = 1, pipefd[2] = { -1, -1 };
 
 // Workaround for the lack of pthread_cancel
 static void term_thread(int sig) {
@@ -38,17 +38,6 @@ static void term_thread(int sig) {
 	pthread_exit(NULL);
 }
 
-static void hide_done(int sig) {
-	--hide_queue;
-	if (hide_queue == 0) {
-		xmount(NULL, "/", NULL, MS_REMOUNT, NULL);
-		xsymlink(DATABIN, "/data/magisk");
-		xsymlink(MAINIMG, "/data/magisk.img");
-		xsymlink(MOUNTPOINT, "/magisk");
-		xmount(NULL, "/", NULL, MS_REMOUNT | MS_RDONLY, NULL);
-	}
-}
-
 static int read_namespace(const int pid, char* target, const size_t size) {
 	char path[32];
 	snprintf(path, sizeof(path), "/proc/%d/ns/mnt", pid);
@@ -140,9 +129,6 @@ exit:
 	kill(pid, SIGCONT);
 	// Free up memory
 	vec_destroy(&mount_list);
-	// Wait a while and link it back
-	sleep(10);
-	kill(ppid, HIDE_DONE);
 	_exit(0);
 }
 
@@ -151,7 +137,6 @@ void proc_monitor() {
 	sigset_t block_set;
 	sigemptyset(&block_set);
 	sigaddset(&block_set, TERM_THREAD);
-	sigaddset(&block_set, HIDE_DONE);
 	pthread_sigmask(SIG_UNBLOCK, &block_set, NULL);
 
 	// Register the cancel signal
@@ -159,8 +144,6 @@ void proc_monitor() {
 	memset(&act, 0, sizeof(act));
 	act.sa_handler = term_thread;
 	sigaction(TERM_THREAD, &act, NULL);
-	act.sa_handler = hide_done;
-	sigaction(HIDE_DONE, &act, NULL);
 
 	cache_block[0] = '\0';
 
@@ -241,14 +224,6 @@ void proc_monitor() {
 
 				LOGI("proc_monitor: %s (PID=%d ns=%s)\n", processName, pid, ns);
 
-				xmount(NULL, "/", NULL, MS_REMOUNT, NULL);
-				unlink("/magisk");
-				unlink("/data/magisk");
-				unlink("/data/magisk.img");
-				unlink(MAGISKRC);
-				xmount(NULL, "/", NULL, MS_REMOUNT | MS_RDONLY, NULL);
-				++hide_queue;
-
 				/*
 				 * The setns system call do not support multithread processes
 				 * We have to fork a new process, setns, then do the unmounts

native/jni/resetprop/resetprop.cpp

@@ -2,52 +2,6 @@
  *
  * Copyright 2016 nkk71     <nkk71x@gmail.com>
  * Copyright 2016 topjohnwu <topjohnwu@gmail.com>
- *
- * Info:
- *
- * all changes are in
- *
- * bionic/libc/bionic/system_properties.cpp
- *
- * Functions that need to be patched/added in system_properties.cpp
- *
- * int __system_properties_init2()
- *     on android 7, first tear down the everything then let it initialize again:
- *         if (initialized) {
- *             //list_foreach(contexts, [](context_node* l) { l->reset_access(); });
- *             //return 0;
- *             free_and_unmap_contexts();
- *             initialized = false;
- *         }
- *
- *
- * static prop_area* map_prop_area(const char* filename, bool is_legacy)
- *     we dont want this read only so change: 'O_RDONLY' to 'O_RDWR'
- *
- * static prop_area* map_fd_ro(const int fd)
- *     we dont want this read only so change: 'PROT_READ' to 'PROT_READ | PROT_WRITE'
- *
- *
- * Copy the code of prop_info *prop_area::find_property, and modify to delete props
- * const prop_info *prop_area::find_property_and_del(prop_bt *const trie, const char *name)
- * {
- *    ...
- *    ...  Do not alloc a new prop_bt here, remove all code involve alloc_if_needed
- *    ...
- *
- *     if (prop_offset != 0) {
- *         atomic_store_explicit(&current->prop, 0, memory_order_release); // Add this line to nullify the prop entry
- *         return to_prop_info(&current->prop);
- *     } else {
- *
- *    ....
- * }
- *
- *
- * by patching just those functions directly, all other functions should be ok
- * as is.
- *
- *
  */
 
 #include <stdio.h>

native/jni/resetprop/system_properties.cpp

@@ -153,7 +153,7 @@ class prop_area {
   }
 
   const prop_info* find(const char* name);
-  bool del(const char *name);               // resetprop add
+  bool del(const char *name);  /* resetprop add */
   bool add(const char* name, unsigned int namelen, const char* value, unsigned int valuelen);
 
   bool foreach (void (*propfn)(const prop_info* pi, void* cookie), void* cookie);
@@ -184,7 +184,7 @@ class prop_area {
   const prop_info* find_property(prop_bt* const trie, const char* name, uint32_t namelen,
                                  const char* value, uint32_t valuelen, bool alloc_if_needed);
 
-  bool find_property_and_del(prop_bt *const trie, const char *name);    // resetprop add
+  bool find_property_and_del(prop_bt *const trie, const char *name);  /* resetprop add */
 
   bool foreach_property(prop_bt* const trie, void (*propfn)(const prop_info* pi, void* cookie),
                         void* cookie);
@@ -283,7 +283,8 @@ static prop_area* map_prop_area_rw(const char* filename, const char* context,
   return pa;
 }
 
-static prop_area* map_fd_ro(const int fd) {
+// resetprop: map the memory as rw
+static prop_area* map_fd_rw(const int fd) {
   struct stat fd_stat;
   if (fstat(fd, &fd_stat) < 0) {
     return nullptr;
@@ -298,7 +299,7 @@ static prop_area* map_fd_ro(const int fd) {
   pa_size = fd_stat.st_size;
   pa_data_size = pa_size - sizeof(prop_area);
 
-  void* const map_result = mmap(nullptr, pa_size, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);  // resetprop: add PROT_WRITE
+  void* const map_result = mmap(nullptr, pa_size, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);  /* resetprop: add PROT_WRITE */
   if (map_result == MAP_FAILED) {
     return nullptr;
   }
@@ -313,10 +314,10 @@ static prop_area* map_fd_ro(const int fd) {
 }
 
 static prop_area* map_prop_area(const char* filename) {
-  int fd = open(filename, O_CLOEXEC | O_NOFOLLOW | O_RDWR);       // resetprop: O_RDONLY -> O_RDWR
+  int fd = open(filename, O_CLOEXEC | O_NOFOLLOW | O_RDWR);  /* resetprop: O_RDONLY -> O_RDWR */
   if (fd == -1) return nullptr;
 
-  prop_area* map_result = map_fd_ro(fd);
+  prop_area* map_result = map_fd_rw(fd);
   close(fd);
 
   return map_result;
@@ -530,7 +531,7 @@ bool prop_area::find_property_and_del(prop_bt* const trie, const char* name) {
 
   uint_least32_t prop_offset = atomic_load_explicit(&current->prop, memory_order_relaxed);
   if (prop_offset != 0) {
-    atomic_store_explicit(&current->prop, 0, memory_order_release);     // resetprop: nullify the offset to delete the prop
+    atomic_store_explicit(&current->prop, 0, memory_order_release);
     return true;
   } else {
     return false;
@@ -1116,17 +1117,16 @@ static bool initialize_properties() {
     if (!initialize_properties_from_file("/system/etc/selinux/plat_property_contexts")) {
       return false;
     }
-    if (!initialize_properties_from_file("/vendor/etc/selinux/nonplat_property_contexts")
-            && !initialize_properties_from_file("/vendor/etc/selinux/vendor_property_contexts")) {
-      return false;
-    }
+    // Don't check for failure here, so we always have a sane list of properties.
+    // E.g. In case of recovery, the vendor partition will not have mounted and we
+    // still need the system / platform properties to function.
+    initialize_properties_from_file("/vendor/etc/selinux/nonplat_property_contexts") ||
+            initialize_properties_from_file("/vendor/etc/selinux/vendor_property_contexts");
   } else {
     if (!initialize_properties_from_file("/plat_property_contexts")) {
       return false;
     }
-    if (!initialize_properties_from_file("/nonplat_property_contexts")) {
-      return false;
-    }
+    initialize_properties_from_file("/nonplat_property_contexts");
   }
 
   return true;

snet/build.gradle

@@ -1,13 +1,13 @@
 apply plugin: 'com.android.application'
 
 android {
-    compileSdkVersion 27
-    buildToolsVersion "27.0.3"
+    compileSdkVersion rootProject.ext.compileSdkVersion
+    buildToolsVersion rootProject.ext.buildToolsVersion
 
     defaultConfig {
         applicationId "com.topjohnwu.snet"
         minSdkVersion 21
-        targetSdkVersion 27
+        targetSdkVersion rootProject.ext.compileSdkVersion
         versionCode 1
         versionName "1.0"
     }
@@ -20,10 +20,6 @@ android {
     }
 }
 
-repositories {
-    google()
-}
-
 dependencies {
     implementation fileTree(dir: 'libs', include: ['*.jar'])
     implementation 'com.google.android.gms:play-services-safetynet:7.0.0'  /* The oldest version */