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Obfuscate filenames to prevent detection

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Because why not
This commit is contained in:
topjohnwu 2018-02-11 04:04:47 +08:00
parent ebd509d92d
commit 49ecba2476
1 changed files with 18 additions and 5 deletions
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23
native/jni/core/daemon.c
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@ -134,6 +134,7 @@ void daemon_init() {
struct dirent *entry; struct dirent *entry;
int root, sbin; int root, sbin;
char buf[PATH_MAX], buf2[PATH_MAX]; char buf[PATH_MAX], buf2[PATH_MAX];
char magisk_name[10], init_name[10];
// Setup links under /sbin // Setup links under /sbin
xmount(NULL, "/", NULL, MS_REMOUNT, NULL); xmount(NULL, "/", NULL, MS_REMOUNT, NULL);
@ -155,14 +156,26 @@ void daemon_init() {
snprintf(buf2, PATH_MAX, "/sbin/%s", entry->d_name); snprintf(buf2, PATH_MAX, "/sbin/%s", entry->d_name);
xsymlink(buf, buf2); xsymlink(buf, buf2);
} }
gen_rand_str(magisk_name, sizeof(magisk_name));
snprintf(buf, PATH_MAX, "/root/%s", magisk_name);
unlink("/sbin/magisk");
rename("/root/magisk", buf);
xsymlink(buf, "/sbin/magisk");
for (int i = 0; applet[i]; ++i) { for (int i = 0; applet[i]; ++i) {
snprintf(buf2, PATH_MAX, "/sbin/%s", applet[i]); snprintf(buf2, PATH_MAX, "/sbin/%s", applet[i]);
xsymlink("/root/magisk", buf2); xsymlink(buf, buf2);
} }
gen_rand_str(init_name, sizeof(init_name));
snprintf(buf, PATH_MAX, "/root/%s", init_name);
unlink("/sbin/magiskinit");
rename("/root/magiskinit", buf);
for (int i = 0; init_applet[i]; ++i) { for (int i = 0; init_applet[i]; ++i) {
snprintf(buf2, PATH_MAX, "/sbin/%s", init_applet[i]); snprintf(buf2, PATH_MAX, "/sbin/%s", init_applet[i]);
xsymlink("/root/magiskinit", buf2); xsymlink(buf, buf2);
} }
close(root); close(root);
// Backward compatibility // Backward compatibility
@ -193,7 +206,7 @@ void daemon_init() {
xmkdirs(MIRRDIR "/system", 0755); xmkdirs(MIRRDIR "/system", 0755);
xmount(buf, MIRRDIR "/system", "ext4", MS_RDONLY, NULL); xmount(buf, MIRRDIR "/system", "ext4", MS_RDONLY, NULL);
#ifdef MAGISK_DEBUG #ifdef MAGISK_DEBUG
LOGI("mount: %s -> %s\n", buf, MIRRDIR "/system"); LOGI("mount: %s <- %s\n", MIRRDIR "/system", buf);
#else #else
LOGI("mount: %s\n", MIRRDIR "/system"); LOGI("mount: %s\n", MIRRDIR "/system");
#endif #endif
@ -203,7 +216,7 @@ void daemon_init() {
xmkdirs(MIRRDIR "/vendor", 0755); xmkdirs(MIRRDIR "/vendor", 0755);
xmount(buf, MIRRDIR "/vendor", "ext4", MS_RDONLY, NULL); xmount(buf, MIRRDIR "/vendor", "ext4", MS_RDONLY, NULL);
#ifdef MAGISK_DEBUG #ifdef MAGISK_DEBUG
LOGI("mount: %s -> %s\n", buf, MIRRDIR "/vendor"); LOGI("mount: %s <- %s\n", MIRRDIR "/vendor", buf);
#else #else
LOGI("mount: %s\n", MIRRDIR "/vendor"); LOGI("mount: %s\n", MIRRDIR "/vendor");
#endif #endif
@ -214,7 +227,7 @@ void daemon_init() {
if (!seperate_vendor) { if (!seperate_vendor) {
xsymlink(MIRRDIR "/system/vendor", MIRRDIR "/vendor"); xsymlink(MIRRDIR "/system/vendor", MIRRDIR "/vendor");
#ifdef MAGISK_DEBUG #ifdef MAGISK_DEBUG
LOGI("link: %s -> %s\n", MIRRDIR "/system/vendor", MIRRDIR "/vendor"); LOGI("link: %s <- %s\n", MIRRDIR "/vendor", MIRRDIR "/system/vendor");
#else #else
LOGI("link: %s\n", MIRRDIR "/vendor"); LOGI("link: %s\n", MIRRDIR "/vendor");
#endif #endif