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Support system_ext

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This commit is contained in:
topjohnwu 2020-04-20 23:57:29 -07:00
parent 44b7a3c3f1
commit 8ca5a048d6
1 changed files with 24 additions and 36 deletions
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60
native/jni/core/bootstages.cpp
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@ -33,16 +33,23 @@ extern void auto_start_magiskhide();
#define SETMIR(b, part) sprintf(b, "%s/" MIRRDIR "/" #part, MAGISKTMP.data()) #define SETMIR(b, part) sprintf(b, "%s/" MIRRDIR "/" #part, MAGISKTMP.data())
#define SETBLK(b, part) sprintf(b, "%s/" BLOCKDIR "/" #part, MAGISKTMP.data()) #define SETBLK(b, part) sprintf(b, "%s/" BLOCKDIR "/" #part, MAGISKTMP.data())
#define mount_mirror(part, flag) { \ #define mount_mirror(part, flag) \
xstat(me->mnt_fsname, &st); \ else if (DIR_IS(part) && me->mnt_type != "tmpfs"sv && lstat(me->mnt_dir, &st) == 0) { \
SETMIR(buf1, part); \ SETMIR(buf1, part); \
SETBLK(buf2, part); \ SETBLK(buf2, part); \
mknod(buf2, (st.st_mode & S_IFMT) | 0600, st.st_rdev); \ mknod(buf2, S_IFBLK | 0600, st.st_dev); \
xmkdir(buf1, 0755); \ xmkdir(buf1, 0755); \
xmount(buf2, buf1, me->mnt_type, flag, nullptr); \ xmount(buf2, buf1, me->mnt_type, flag, nullptr); \
LOGI("mount: %s\n", buf1); \ LOGI("mount: %s\n", buf1); \
} }
#define link_mirror(part) \
SETMIR(buf1, part); \
if (access("/system/" #part, F_OK) == 0 && access(buf1, F_OK) != 0) { \
xsymlink("./system/" #part, buf1); \
LOGI("link: %s\n", buf1); \
}
static bool magisk_env() { static bool magisk_env() {
LOGI("* Initializing Magisk environment\n"); LOGI("* Initializing Magisk environment\n");
@ -58,12 +65,12 @@ static bool magisk_env() {
const char *alt_bin[] = { "/cache/data_adb/magisk", "/data/magisk", buf1 }; const char *alt_bin[] = { "/cache/data_adb/magisk", "/data/magisk", buf1 };
for (auto alt : alt_bin) { for (auto alt : alt_bin) {
struct stat st; struct stat st;
if (lstat(alt, &st) != -1) { if (lstat(alt, &st) == 0) {
if (S_ISLNK(st.st_mode)) { if (S_ISLNK(st.st_mode)) {
unlink(alt); unlink(alt);
continue; continue;
} }
rm_rf(DATABIN);; rm_rf(DATABIN);
cp_afc(alt, DATABIN); cp_afc(alt, DATABIN);
rm_rf(alt); rm_rf(alt);
break; break;
@ -81,9 +88,6 @@ static bool magisk_env() {
sprintf(buf1, "%s/" MODULEMNT, MAGISKTMP.data()); sprintf(buf1, "%s/" MODULEMNT, MAGISKTMP.data());
xmkdir(buf1, 0755); xmkdir(buf1, 0755);
// TODO: Remove. Backwards compatibility for old manager
sprintf(buf1, "%s/" INTLROOT "/img", MAGISKTMP.data());
xsymlink("./modules", buf1);
// Directories in /data/adb // Directories in /data/adb
xmkdir(DATABIN, 0755); xmkdir(DATABIN, 0755);
@ -92,24 +96,16 @@ static bool magisk_env() {
xmkdir(SECURE_DIR "/service.d", 0755); xmkdir(SECURE_DIR "/service.d", 0755);
LOGI("* Mounting mirrors"); LOGI("* Mounting mirrors");
bool system_as_root = false;
struct stat st;
parse_mnt("/proc/mounts", [&](mntent *me) { parse_mnt("/proc/mounts", [&](mntent *me) {
if (DIR_IS(system_root)) { struct stat st;
mount_mirror(system_root, MS_RDONLY); if (0) {}
SETMIR(buf1, system); mount_mirror(system, MS_RDONLY)
xsymlink("./system_root/system", buf1); mount_mirror(vendor, MS_RDONLY)
LOGI("link: %s\n", buf1); mount_mirror(product, MS_RDONLY)
system_as_root = true; mount_mirror(system_ext, MS_RDONLY)
} else if (!system_as_root && DIR_IS(system)) { mount_mirror(data, 0)
mount_mirror(system, MS_RDONLY); else if (SDK_INT >= 24 && DIR_IS(proc) && !strstr(me->mnt_opts, "hidepid=2")) {
} else if (DIR_IS(vendor)) {
mount_mirror(vendor, MS_RDONLY);
} else if (DIR_IS(product)) {
mount_mirror(product, MS_RDONLY);
} else if (DIR_IS(data) && me->mnt_type != "tmpfs"sv) {
mount_mirror(data, 0);
} else if (SDK_INT >= 24 && DIR_IS(proc) && !strstr(me->mnt_opts, "hidepid=2")) {
xmount(nullptr, "/proc", nullptr, MS_REMOUNT, "hidepid=2,gid=3009"); xmount(nullptr, "/proc", nullptr, MS_REMOUNT, "hidepid=2,gid=3009");
} }
return true; return true;
@ -117,20 +113,12 @@ static bool magisk_env() {
SETMIR(buf1, system); SETMIR(buf1, system);
SETMIR(buf2, system_root); SETMIR(buf2, system_root);
if (access(buf1, F_OK) != 0 && access(buf2, F_OK) == 0) { if (access(buf1, F_OK) != 0 && access(buf2, F_OK) == 0) {
// Pre-init mirrors
xsymlink("./system_root/system", buf1); xsymlink("./system_root/system", buf1);
LOGI("link: %s\n", buf1); LOGI("link: %s\n", buf1);
} }
SETMIR(buf1, vendor); link_mirror(vendor);
if (access(buf1, F_OK) != 0) { link_mirror(product);
xsymlink("./system/vendor", buf1); link_mirror(system_ext);
LOGI("link: %s\n", buf1);
}
SETMIR(buf1, product);
if (access("/system/product", F_OK) == 0 && access(buf1, F_OK) != 0) {
xsymlink("./system/product", buf1);
LOGI("link: %s\n", buf1);
}
// Disable/remove magiskhide, resetprop // Disable/remove magiskhide, resetprop
if (SDK_INT < 19) { if (SDK_INT < 19) {