MarcoBuster/Magisk
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Block vaultkeeper and flash_recovery service

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This commit is contained in:
topjohnwu 2019-03-30 04:13:45 -04:00
parent 1cd45b53b1
commit 7a133eaf03
1 changed files with 16 additions and 1 deletions
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17
native/jni/core/init.cpp
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@ -429,7 +429,20 @@ void MagiskInit::setup_rootfs() {
}
// Patch init.rc
FILE *rc = xfopen("/init.rc", "ae");
FILE *rc = xfopen("/init.p.rc", "we");
file_readline("/init.rc", [&](auto line) -> bool {
// Do not start vaultkeeper
if (str_contains(line, "start vaultkeeper"))
return true;
// Do not run flash_recovery
if (str_starts(line, "service flash_recovery")) {
fprintf(rc, "service flash_recovery /system/bin/xxxxx\n");
return true;
}
// Else just write the line
fprintf(rc, "%s", line.data());
return true;
});
char pfd_svc[8], ls_svc[8];
gen_rand_str(pfd_svc, sizeof(pfd_svc));
do {
@ -437,6 +450,8 @@ void MagiskInit::setup_rootfs() {
} while (strcmp(pfd_svc, ls_svc) == 0);
fprintf(rc, magiskrc, pfd_svc, pfd_svc, ls_svc);
fclose(rc);
clone_attr("/init.rc", "/init.p.rc");
rename("/init.p.rc", "/init.rc");
// Don't let init run in init yet
lsetfilecon("/init", "u:object_r:rootfs:s0");