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Add SECURITY_PATCH and fix null props

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This commit is contained in:
chiteroman
2023-11-21 14:04:33 +01:00
parent bf9ce4eb73
commit abc57e0a46
11 changed files with 73 additions and 117 deletions
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app/src/main/cpp/zygisk.hpp
+21 -14
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@@ -19,7 +19,7 @@
#include <jni.h>
#define ZYGISK_API_VERSION 2
#define ZYGISK_API_VERSION 4
/*
@@ -142,6 +142,7 @@ struct AppSpecializeArgs {
jint &gid;
jintArray &gids;
jint &runtime_flags;
jobjectArray &rlimits;
jint &mount_external;
jstring &se_info;
jstring &nice_name;
@@ -149,6 +150,7 @@ struct AppSpecializeArgs {
jstring &app_data_dir;
// Optional arguments. Please check whether the pointer is null before de-referencing
jintArray *const fds_to_ignore;
jboolean *const is_child_zygote;
jboolean *const is_top_app;
jobjectArray *const pkg_data_info_list;
@@ -241,6 +243,14 @@ struct Api {
// Returns bitwise-or'd zygisk::StateFlag values.
uint32_t getFlags();
// Exempt the provided file descriptor from being automatically closed.
//
// This API only make sense in preAppSpecialize; calling this method in any other situation
// is either a no-op (returns true) or an error (returns false).
//
// When false is returned, the provided file descriptor will eventually be closed by zygote.
bool exemptFd(int fd);
// Hook JNI native methods for a class
//
// Lookup all registered JNI native methods and replace it with your own methods.
@@ -257,13 +267,10 @@ struct Api {
// 56b4346000-56b4347000 r-xp 00002000 fe:00 235 /system/bin/app_process64
// (More details: https://man7.org/linux/man-pages/man5/proc.5.html)
//
// For ELFs loaded in memory with pathname matching `regex`, replace function `symbol` with `newFunc`.
// The `dev` and `inode` pair uniquely identifies a file being mapped into memory.
// For matching ELFs loaded in memory, replace function `symbol` with `newFunc`.
// If `oldFunc` is not nullptr, the original function pointer will be saved to `oldFunc`.
void pltHookRegister(const char *regex, const char *symbol, void *newFunc, void **oldFunc);
// For ELFs loaded in memory with pathname matching `regex`, exclude hooks registered for `symbol`.
// If `symbol` is nullptr, then all symbols will be excluded.
void pltHookExclude(const char *regex, const char *symbol);
void pltHookRegister(dev_t dev, ino_t inode, const char *symbol, void *newFunc, void **oldFunc);
// Commit all the hooks that was previously registered.
// Returns false if an error occurred.
@@ -324,8 +331,8 @@ struct api_table {
bool (*registerModule)(api_table *, module_abi *);
void (*hookJniNativeMethods)(JNIEnv *, const char *, JNINativeMethod *, int);
void (*pltHookRegister)(const char *, const char *, void *, void **);
void (*pltHookExclude)(const char *, const char *);
void (*pltHookRegister)(dev_t, ino_t, const char *, void *, void **);
bool (*exemptFd)(int);
bool (*pltHookCommit)();
int (*connectCompanion)(void * /* impl */);
void (*setOption)(void * /* impl */, Option);
@@ -358,14 +365,14 @@ inline void Api::setOption(Option opt) {
inline uint32_t Api::getFlags() {
return tbl->getFlags ? tbl->getFlags(tbl->impl) : 0;
}
inline bool Api::exemptFd(int fd) {
return tbl->exemptFd != nullptr && tbl->exemptFd(fd);
}
inline void Api::hookJniNativeMethods(JNIEnv *env, const char *className, JNINativeMethod *methods, int numMethods) {
if (tbl->hookJniNativeMethods) tbl->hookJniNativeMethods(env, className, methods, numMethods);
}
inline void Api::pltHookRegister(const char *regex, const char *symbol, void *newFunc, void **oldFunc) {
if (tbl->pltHookRegister) tbl->pltHookRegister(regex, symbol, newFunc, oldFunc);
}
inline void Api::pltHookExclude(const char *regex, const char *symbol) {
if (tbl->pltHookExclude) tbl->pltHookExclude(regex, symbol);
inline void Api::pltHookRegister(dev_t dev, ino_t inode, const char *symbol, void *newFunc, void **oldFunc) {
if (tbl->pltHookRegister) tbl->pltHookRegister(dev, inode, symbol, newFunc, oldFunc);
}
inline bool Api::pltHookCommit() {
return tbl->pltHookCommit != nullptr && tbl->pltHookCommit();