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Use stable random seed

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This commit is contained in:
vvb2060
2023-03-08 06:52:09 +08:00
committed by John Wu
parent 5117dc1a31
commit 46ce765860
6 changed files with 56 additions and 24 deletions
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10
native/src/init/rootdir.cpp
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@@ -199,13 +199,17 @@ static void extract_files(bool sbin) {
}
void MagiskInit::parse_config_file() {
parse_prop_file("/data/.backup/.magisk", [this](auto key, auto value) -> bool {
uint64_t seed = 0;
parse_prop_file("/data/.backup/.magisk", [&](auto key, auto value) -> bool {
if (key == "PREINITDEVICE") {
preinit_dev = value;
return false;
} else if (key == "RANDOMSEED") {
value.remove_prefix(2); // 0x
seed = parse_uint64_hex(value);
}
return true;
});
gen_rand_str(nullptr, 0, &seed);
}
#define ROOTMIR MIRRDIR "/system_root"
@@ -220,7 +224,7 @@ void MagiskInit::patch_ro_root() {
if (access("/sbin", F_OK) == 0) {
tmp_dir = "/sbin";
} else {
char buf[8];
char buf[16];
gen_rand_str(buf, sizeof(buf));
tmp_dir = "/dev/"s + buf;
xmkdir(tmp_dir.data(), 0);