Commit a292a1d2 authored by topjohnwu's avatar topjohnwu

Cleanup and add new rules

Close #607
parent 3f87f6ae
#include "magiskpolicy.h" #include "magiskpolicy.h"
#include "sepolicy.h" #include "sepolicy.h"
void allowSuClient(char *target) { static void allowSuClient(char *target) {
if (!sepol_exists(target)) if (!sepol_exists(target))
return; return;
sepol_allow(target, SEPOL_PROC_DOMAIN, "unix_stream_socket", "connectto"); sepol_allow(target, SEPOL_PROC_DOMAIN, "unix_stream_socket", "connectto");
...@@ -10,11 +10,13 @@ void allowSuClient(char *target) { ...@@ -10,11 +10,13 @@ void allowSuClient(char *target) {
sepol_allow(SEPOL_PROC_DOMAIN, target, "fifo_file", ALL); sepol_allow(SEPOL_PROC_DOMAIN, target, "fifo_file", ALL);
// Allow access to magisk files // Allow access to magisk files
sepol_allow(target, SEPOL_FILE_DOMAIN, "sock_file", "read");
sepol_allow(target, SEPOL_FILE_DOMAIN, "sock_file", "write");
sepol_allow(target, SEPOL_FILE_DOMAIN, "file", ALL); sepol_allow(target, SEPOL_FILE_DOMAIN, "file", ALL);
sepol_allow(target, SEPOL_FILE_DOMAIN, "dir", ALL); sepol_allow(target, SEPOL_FILE_DOMAIN, "dir", ALL);
// Allow binder service
sepol_allow(target, SEPOL_PROC_DOMAIN, "binder", "call");
sepol_allow(target, SEPOL_PROC_DOMAIN, "binder", "transfer");
// Allow termios ioctl // Allow termios ioctl
sepol_allow(target, "devpts", "chr_file", "ioctl"); sepol_allow(target, "devpts", "chr_file", "ioctl");
sepol_allow(target, "untrusted_app_devpts", "chr_file", "ioctl"); sepol_allow(target, "untrusted_app_devpts", "chr_file", "ioctl");
...@@ -28,7 +30,49 @@ void allowSuClient(char *target) { ...@@ -28,7 +30,49 @@ void allowSuClient(char *target) {
} }
} }
void otherToSU() { void sepol_magisk_rules() {
// First prevent anything to change sepolicy except ourselves
sepol_deny(ALL, "kernel", "security", "load_policy");
if (!sepol_exists(SEPOL_PROC_DOMAIN))
sepol_create(SEPOL_PROC_DOMAIN);
if (!sepol_exists(SEPOL_FILE_DOMAIN))
sepol_create(SEPOL_FILE_DOMAIN);
sepol_permissive(SEPOL_PROC_DOMAIN);
sepol_attradd(SEPOL_PROC_DOMAIN, "mlstrustedsubject");
sepol_attradd(SEPOL_PROC_DOMAIN, "netdomain");
sepol_attradd(SEPOL_PROC_DOMAIN, "bluetoothdomain");
sepol_attradd(SEPOL_FILE_DOMAIN, "mlstrustedobject");
// Let init run stuffs
sepol_allow("kernel", SEPOL_PROC_DOMAIN, "fd", "use");
sepol_allow("init", SEPOL_PROC_DOMAIN, "process", ALL);
// Shell, properties, logs
if (sepol_exists("default_prop"))
sepol_allow(SEPOL_PROC_DOMAIN, "default_prop", "property_service", "set");
sepol_allow(SEPOL_PROC_DOMAIN, "init", "unix_stream_socket", "connectto");
sepol_allow(SEPOL_PROC_DOMAIN, "rootfs", "filesystem", "remount");
if (sepol_exists("logd"))
sepol_allow(SEPOL_PROC_DOMAIN, "logd", "unix_stream_socket", "connectto");
sepol_allow(SEPOL_PROC_DOMAIN, SEPOL_PROC_DOMAIN, ALL, ALL);
// For sepolicy live patching
sepol_allow(SEPOL_PROC_DOMAIN, "kernel", "security", "read_policy");
sepol_allow(SEPOL_PROC_DOMAIN, "kernel", "security", "load_policy");
// Allow these processes to access MagiskSU
allowSuClient("init");
allowSuClient("shell");
allowSuClient("system_app");
allowSuClient("priv_app");
allowSuClient("platform_app");
allowSuClient("untrusted_app");
allowSuClient("untrusted_app_25");
allowSuClient("untrusted_app_27");
allowSuClient("update_engine");
// suRights // suRights
sepol_allow("servicemanager", SEPOL_PROC_DOMAIN, "dir", "search"); sepol_allow("servicemanager", SEPOL_PROC_DOMAIN, "dir", "search");
sepol_allow("servicemanager", SEPOL_PROC_DOMAIN, "dir", "read"); sepol_allow("servicemanager", SEPOL_PROC_DOMAIN, "dir", "read");
...@@ -36,9 +80,6 @@ void otherToSU() { ...@@ -36,9 +80,6 @@ void otherToSU() {
sepol_allow("servicemanager", SEPOL_PROC_DOMAIN, "file", "read"); sepol_allow("servicemanager", SEPOL_PROC_DOMAIN, "file", "read");
sepol_allow("servicemanager", SEPOL_PROC_DOMAIN, "process", "getattr"); sepol_allow("servicemanager", SEPOL_PROC_DOMAIN, "process", "getattr");
sepol_allow("servicemanager", SEPOL_PROC_DOMAIN, "binder", "transfer"); sepol_allow("servicemanager", SEPOL_PROC_DOMAIN, "binder", "transfer");
sepol_allow("system_server", SEPOL_PROC_DOMAIN, "binder", "call");
sepol_allow("system_server", SEPOL_PROC_DOMAIN, "fd", "use");
sepol_allow(SEPOL_PROC_DOMAIN, "servicemanager", "dir", "search"); sepol_allow(SEPOL_PROC_DOMAIN, "servicemanager", "dir", "search");
sepol_allow(SEPOL_PROC_DOMAIN, "servicemanager", "dir", "read"); sepol_allow(SEPOL_PROC_DOMAIN, "servicemanager", "dir", "read");
sepol_allow(SEPOL_PROC_DOMAIN, "servicemanager", "file", "open"); sepol_allow(SEPOL_PROC_DOMAIN, "servicemanager", "file", "open");
...@@ -46,9 +87,6 @@ void otherToSU() { ...@@ -46,9 +87,6 @@ void otherToSU() {
sepol_allow(SEPOL_PROC_DOMAIN, "servicemanager", "process", "getattr"); sepol_allow(SEPOL_PROC_DOMAIN, "servicemanager", "process", "getattr");
sepol_allow(SEPOL_PROC_DOMAIN, "servicemanager", "binder", "transfer"); sepol_allow(SEPOL_PROC_DOMAIN, "servicemanager", "binder", "transfer");
sepol_allow(SEPOL_PROC_DOMAIN, "servicemanager", "binder", "call"); sepol_allow(SEPOL_PROC_DOMAIN, "servicemanager", "binder", "call");
sepol_allow(SEPOL_PROC_DOMAIN, "system_server", "binder", "transfer");
sepol_allow(SEPOL_PROC_DOMAIN, "system_server", "binder", "call");
sepol_allow(ALL, SEPOL_PROC_DOMAIN, "process", "sigchld"); sepol_allow(ALL, SEPOL_PROC_DOMAIN, "process", "sigchld");
// allowLog // allowLog
...@@ -60,6 +98,8 @@ void otherToSU() { ...@@ -60,6 +98,8 @@ void otherToSU() {
// suBackL0 // suBackL0
sepol_allow("system_server", SEPOL_PROC_DOMAIN, "binder", "call"); sepol_allow("system_server", SEPOL_PROC_DOMAIN, "binder", "call");
sepol_allow("system_server", SEPOL_PROC_DOMAIN, "binder", "transfer"); sepol_allow("system_server", SEPOL_PROC_DOMAIN, "binder", "transfer");
sepol_allow(SEPOL_PROC_DOMAIN, "system_server", "binder", "call");
sepol_allow(SEPOL_PROC_DOMAIN, "system_server", "binder", "transfer");
// suBackL6 // suBackL6
sepol_allow("surfaceflinger", "app_data_file", "dir", ALL); sepol_allow("surfaceflinger", "app_data_file", "dir", ALL);
...@@ -91,53 +131,6 @@ void otherToSU() { ...@@ -91,53 +131,6 @@ void otherToSU() {
sepol_allow("hwservicemanager", SEPOL_PROC_DOMAIN, "file", "open"); sepol_allow("hwservicemanager", SEPOL_PROC_DOMAIN, "file", "open");
sepol_allow("hwservicemanager", SEPOL_PROC_DOMAIN, "process", "getattr"); sepol_allow("hwservicemanager", SEPOL_PROC_DOMAIN, "process", "getattr");
sepol_allow("hwservicemanager", SEPOL_PROC_DOMAIN, "binder", "transfer"); sepol_allow("hwservicemanager", SEPOL_PROC_DOMAIN, "binder", "transfer");
}
void sepol_magisk_rules() {
// First prevent anything to change sepolicy except ourselves
sepol_deny(ALL, "kernel", "security", "load_policy");
if (!sepol_exists(SEPOL_PROC_DOMAIN))
sepol_create(SEPOL_PROC_DOMAIN);
if (!sepol_exists(SEPOL_FILE_DOMAIN))
sepol_create(SEPOL_FILE_DOMAIN);
sepol_permissive(SEPOL_PROC_DOMAIN);
sepol_attradd(SEPOL_PROC_DOMAIN, "mlstrustedsubject");
sepol_attradd(SEPOL_PROC_DOMAIN, "netdomain");
sepol_attradd(SEPOL_PROC_DOMAIN, "bluetoothdomain");
sepol_attradd(SEPOL_FILE_DOMAIN, "mlstrustedobject");
// Let init run stuffs
sepol_allow("kernel", SEPOL_PROC_DOMAIN, "fd", "use");
sepol_allow("init", SEPOL_PROC_DOMAIN, "process", ALL);
// Shell, properties, logs
if (sepol_exists("default_prop"))
sepol_allow(SEPOL_PROC_DOMAIN, "default_prop", "property_service", "set");
sepol_allow(SEPOL_PROC_DOMAIN, "init", "unix_stream_socket", "connectto");
sepol_allow(SEPOL_PROC_DOMAIN, "rootfs", "filesystem", "remount");
if (sepol_exists("logd"))
sepol_allow(SEPOL_PROC_DOMAIN, "logd", "unix_stream_socket", "connectto");
sepol_allow(SEPOL_PROC_DOMAIN, SEPOL_PROC_DOMAIN, ALL, ALL);
// For sepolicy live patching
sepol_allow(SEPOL_PROC_DOMAIN, "kernel", "security", "read_policy");
sepol_allow(SEPOL_PROC_DOMAIN, "kernel", "security", "load_policy");
// Allow these processes to access MagiskSU
allowSuClient("init");
allowSuClient("shell");
allowSuClient("system_app");
allowSuClient("priv_app");
allowSuClient("platform_app");
allowSuClient("untrusted_app");
allowSuClient("untrusted_app_25");
allowSuClient("untrusted_app_27");
allowSuClient("update_engine");
// Some superuser stuffs
otherToSU();
// For mounting loop devices, mirrors, tmpfs // For mounting loop devices, mirrors, tmpfs
sepol_allow(SEPOL_PROC_DOMAIN, "kernel", "process", "setsched"); sepol_allow(SEPOL_PROC_DOMAIN, "kernel", "process", "setsched");
......
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