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Stop embedding executables

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This commit is contained in:
topjohnwu
2024-07-24 22:49:48 -07:00
parent b3d6809c0b
commit 33aebb5976
10 changed files with 48 additions and 75 deletions
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13
native/src/init/selinux.cpp
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@@ -2,7 +2,6 @@
#include <consts.hpp>
#include <sepolicy.hpp>
#include <embed.hpp>
#include "init.hpp"
@@ -31,16 +30,6 @@ void MagiskInit::patch_sepolicy(const char *in, const char *out) {
}
}
static void dump_preload() {
int fd = xopen("/dev/preload.so", O_WRONLY | O_CREAT | O_TRUNC | O_CLOEXEC, 0644);
if (fd < 0)
return;
fd_stream ch(fd);
if (!unxz(ch, byte_view(init_ld_xz, sizeof(init_ld_xz))))
return;
close(fd);
}
#define MOCK_COMPAT SELINUXMOCK "/compatible"
#define MOCK_LOAD SELINUXMOCK "/load"
#define MOCK_ENFORCE SELINUXMOCK "/enforce"
@@ -53,7 +42,7 @@ bool MagiskInit::hijack_sepolicy() {
// This meant that instead of going through convoluted methods trying to alter
// and block init's control flow, we can just LD_PRELOAD and replace the
// security_load_policy function with our own implementation.
dump_preload();
cp_afc("init-ld", "/dev/preload.so");
setenv("LD_PRELOAD", "/dev/preload.so", 1);
}