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Backup proper magiskinit in A-only 2SI

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topjohnwu
2020-01-22 05:12:04 +08:00
parent 0a2c99f1dc
commit ba55e2bc32
3 changed files with 22 additions and 18 deletions
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8
native/jni/init/mount.cpp
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@ -183,11 +183,11 @@ void RootFSInit::early_mount() {
mount_list.emplace_back("/dev/mnt/cache");
}
void SARBase::backup_files() {
void SARBase::backup_files(const char *self_path) {
if (access("/overlay.d", F_OK) == 0)
cp_afc("/overlay.d", "/dev/overlay.d");
full_read("/init", self.buf, self.sz);
full_read(self_path, self.buf, self.sz);
full_read("/.backup/.magisk", config.buf, config.sz);
}
@ -197,7 +197,7 @@ void SARInit::early_mount() {
xmount("tmpfs", "/dev", "tmpfs", 0, "mode=755");
mount_list.emplace_back("/dev");
backup_files();
backup_files("/init");
LOGD("Cleaning rootfs\n");
int root = xopen("/", O_RDONLY | O_CLOEXEC);
@ -232,7 +232,7 @@ void SARInit::early_mount() {
void SecondStageInit::early_mount() {
// Early mounts should already be done by first stage init
backup_files();
backup_files("/system/bin/init");
rm_rf("/system");
rm_rf("/.backup");
rm_rf("/overlay.d");