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Fix liboat_hook.so inaccessible in some device #190

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Merged
JingMatrix merged 3 commits into from
Feb 17, 2025
+13 −5
Merged

Fix liboat_hook.so inaccessible in some device #190

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08cc6f2
Fix liboat_hook.so inaccessible in some device
JingMatrix Feb 15, 2025
6f7547e
Define xposed_file as system_file_type
JingMatrix Feb 16, 2025
82d097a
Set SELinux context of hookers in Dex2OatService
JingMatrix Feb 17, 2025
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4 changes: 4 additions & 0 deletions daemon/src/main/java/org/lsposed/lspd/service/Dex2OatService.java
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Original file line number Diff line number Diff line change
Expand Up @@ -50,6 +50,8 @@ public class Dex2OatService implements Runnable {
private static final String TAG = "LSPosedDex2Oat";
private static final String WRAPPER32 = "bin/dex2oat32";
private static final String WRAPPER64 = "bin/dex2oat64";
private static final String HOOKER32 = "bin/liboat_hook32.so";
private static final String HOOKER64 = "bin/liboat_hook64.so";

private final String[] dex2oatArray = new String[6];
private final FileDescriptor[] fdArray = new FileDescriptor[6];
Expand Down Expand Up @@ -186,6 +188,8 @@ public void run() {
SELinux.setFileContext(WRAPPER64, xposed_file);
setSockCreateContext("u:r:installd:s0");
}
SELinux.setFileContext(HOOKER32, xposed_file);
SELinux.setFileContext(HOOKER64, xposed_file);
try (var server = new LocalServerSocket(sockPath)) {
setSockCreateContext(null);
while (true) {
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14 changes: 9 additions & 5 deletions dex2oat/src/main/cpp/dex2oat.c
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Original file line number Diff line number Diff line change
Expand Up @@ -131,11 +131,15 @@ int main(int argc, char **argv) {
putenv((char *)libenv);
}

// Set LD_PRELOAD to load liboat_hook.so
const int STRING_BUFFER = 50;
char env_str[STRING_BUFFER];
snprintf(env_str, STRING_BUFFER, "LD_PRELOAD=/proc/%d/fd/%d", getpid(), hooker_fd);
putenv(env_str);
if (hooker_fd > 0) {
// Set LD_PRELOAD to load liboat_hook.so
const int STRING_BUFFER = 50;
char env_str[STRING_BUFFER];
snprintf(env_str, STRING_BUFFER, "LD_PRELOAD=/proc/%d/fd/%d", getpid(), hooker_fd);
putenv(env_str);
} else {
LOGE("Unable to read liboat_hook.so");
}

fexecve(stock_fd, (char **)new_argv, environ);

Expand Down