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Reduce miscPath permissions (#1795)

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南宫雪珊 2022-03-26 13:51:23 +08:00 committed by GitHub
parent 57c1b8b904
commit e9e65f70c4
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 11 additions and 6 deletions
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17
daemon/src/main/java/org/lsposed/lspd/service/ConfigManager.java
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@ -62,6 +62,7 @@ import java.nio.file.Path;
import java.nio.file.Paths; import java.nio.file.Paths;
import java.nio.file.SimpleFileVisitor; import java.nio.file.SimpleFileVisitor;
import java.nio.file.attribute.BasicFileAttributes; import java.nio.file.attribute.BasicFileAttributes;
import java.nio.file.attribute.PosixFilePermissions;
import java.util.ArrayList; import java.util.ArrayList;
import java.util.Arrays; import java.util.Arrays;
import java.util.Collections; import java.util.Collections;
@ -242,8 +243,9 @@ public class ConfigManager {
} }
try { try {
Path p = Paths.get(miscPath); Path p = Paths.get(miscPath);
Files.createDirectories(p); var perms = PosixFilePermissions.fromString("rwx--x--x");
walkFileTree(p, f -> SELinux.setFileContext(f.toString(), "u:object_r:magisk_file:s0")); Files.createDirectories(p, PosixFilePermissions.asFileAttribute(perms));
walkFileTree(p, true, f -> SELinux.setFileContext(f.toString(), "u:object_r:magisk_file:s0"));
} catch (IOException e) { } catch (IOException e) {
Log.e(TAG, Log.getStackTraceString(e)); Log.e(TAG, Log.getStackTraceString(e));
} }
@ -973,11 +975,14 @@ public class ConfigManager {
return module != null && module.appId == uid % PER_USER_RANGE; return module != null && module.appId == uid % PER_USER_RANGE;
} }
private void walkFileTree(Path dir, Consumer<Path> action) throws IOException { private void walkFileTree(Path rootDir, boolean skipRoot, Consumer<Path> action) throws IOException {
if (Files.notExists(dir)) return; if (Files.notExists(rootDir)) return;
Files.walkFileTree(dir, new SimpleFileVisitor<>() { Files.walkFileTree(rootDir, new SimpleFileVisitor<>() {
@Override @Override
public FileVisitResult preVisitDirectory(Path dir, BasicFileAttributes attrs) { public FileVisitResult preVisitDirectory(Path dir, BasicFileAttributes attrs) {
if (skipRoot && dir.equals(rootDir)) {
return FileVisitResult.CONTINUE;
}
action.accept(dir); action.accept(dir);
return FileVisitResult.CONTINUE; return FileVisitResult.CONTINUE;
} }
@ -995,7 +1000,7 @@ public class ConfigManager {
var path = Paths.get(getPrefsPath(packageName, uid)); var path = Paths.get(getPrefsPath(packageName, uid));
try { try {
Files.createDirectories(path); Files.createDirectories(path);
walkFileTree(path, p -> { walkFileTree(path, false, p -> {
try { try {
Os.chown(p.toString(), uid, 1000); Os.chown(p.toString(), uid, 1000);
} catch (ErrnoException e) { } catch (ErrnoException e) {