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https://github.com/topjohnwu/Magisk.git
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Auto switch to pseudo enforced if permissive
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parent
6d3ac2aa55
commit
472255924a
@ -12,6 +12,8 @@ int hideMagisk() {
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// Termination called
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if(pid == -1) break;
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manage_selinux();
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snprintf(buffer, sizeof(buffer), "/proc/%d/ns/mnt", pid);
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if((fd = open(buffer, O_RDONLY)) == -1) continue; // Maybe process died..
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if(setns(fd, 0) == -1) {
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@ -18,9 +18,11 @@
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#include <sys/stat.h>
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#include <sys/resource.h>
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#define LOGFILE "/cache/magisk.log"
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#define HIDELIST "/magisk/.core/magiskhide/hidelist"
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#define DUMMYPATH "/dev/magisk/dummy"
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#define LOGFILE "/cache/magisk.log"
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#define HIDELIST "/magisk/.core/magiskhide/hidelist"
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#define DUMMYPATH "/dev/magisk/dummy"
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#define ENFORCE_FILE "/sys/fs/selinux/enforce"
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#define SEPOLICY_INJECT "/data/magisk/sepolicy-inject"
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// Main thread
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void monitor_proc();
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@ -38,6 +40,7 @@ char **file_to_str_arr(FILE *fp, int *size);
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void read_namespace(const int pid, char* target, const size_t size);
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void lazy_unmount(const char* mountpoint);
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void run_as_daemon();
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void manage_selinux();
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// Global variable sharing through process/threads
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extern FILE *logfile;
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@ -56,4 +56,36 @@ void run_as_daemon() {
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default:
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exit(0);
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}
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}
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}
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void manage_selinux() {
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char *argv[] = { SEPOLICY_INJECT, "--live", "permissive *", NULL };
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char str[20];
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int fd, ret;
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fd = open(ENFORCE_FILE, O_RDONLY);
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if (fd < 0)
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return;
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ret = read(fd, str, 20);
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close(fd);
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if (ret < 1)
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return;
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// Permissive
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if (str[0] == '0') {
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fprintf(logfile, "MagiskHide: Permissive detected, switching to pseudo enforced\n");
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fd = open(ENFORCE_FILE, O_RDWR);
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if (fd < 0)
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return;
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ret = write(fd, "1", 1);
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close(fd);
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if (ret < 1)
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return;
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switch(fork()) {
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case -1:
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return;
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case 0:
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execvp(argv[0], argv);
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default:
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return;
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}
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}
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}
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