mirror of
https://github.com/topjohnwu/Magisk.git
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231 lines
8.9 KiB
C
231 lines
8.9 KiB
C
#include "magiskpolicy.h"
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void samsung() {
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deny("init", "kernel", "security", "load_policy");
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deny("policyloader_app", "security_spota_file", "dir", "read");
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deny("policyloader_app", "security_spota_file", "dir", "write");
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deny("policyloader_app", "security_spota_file", "file", "read");
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deny("policyloader_app", "security_spota_file", "file", "write");
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deny("system_server", "security_spota_file", "dir", "read");
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deny("system_server", "security_spota_file", "dir", "write");
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deny("system_server", "security_spota_file", "file", "read");
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deny("system_server", "security_spota_file", "file", "write");
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deny("system_app", "security_spota_file", "dir", "read");
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deny("system_app", "security_spota_file", "dir", "write");
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deny("system_app", "security_spota_file", "file", "read");
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deny("system_app", "security_spota_file", "file", "write");
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deny("installd", "security_spota_file", "dir", "read");
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deny("installd", "security_spota_file", "dir", "write");
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deny("installd", "security_spota_file", "file", "read");
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deny("installd", "security_spota_file", "file", "write");
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deny("init", "security_spota_file", "dir", "read");
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deny("init", "security_spota_file", "dir", "write");
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deny("init", "security_spota_file", "file", "read");
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deny("init", "security_spota_file", "file", "write");
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deny("ueventd", "security_spota_file", "dir", "read");
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deny("ueventd", "security_spota_file", "dir", "write");
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deny("ueventd", "security_spota_file", "file", "read");
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deny("ueventd", "security_spota_file", "file", "write");
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deny("runas", "security_spota_file", "dir", "read");
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deny("runas", "security_spota_file", "dir", "write");
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deny("runas", "security_spota_file", "file", "read");
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deny("runas", "security_spota_file", "file", "write");
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deny("drsd", "security_spota_file", "dir", "read");
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deny("drsd", "security_spota_file", "dir", "write");
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deny("drsd", "security_spota_file", "file", "read");
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deny("drsd", "security_spota_file", "file", "write");
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deny("debuggerd", "security_spota_file", "dir", "read");
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deny("debuggerd", "security_spota_file", "dir", "write");
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deny("debuggerd", "security_spota_file", "file", "read");
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deny("debuggerd", "security_spota_file", "file", "write");
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deny("vold", "security_spota_file", "dir", "read");
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deny("vold", "security_spota_file", "dir", "write");
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deny("vold", "security_spota_file", "file", "read");
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deny("vold", "security_spota_file", "file", "write");
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deny("zygote", "security_spota_file", "dir", "read");
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deny("zygote", "security_spota_file", "dir", "write");
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deny("zygote", "security_spota_file", "file", "read");
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deny("zygote", "security_spota_file", "file", "write");
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deny("auditd", "security_spota_file", "dir", "read");
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deny("auditd", "security_spota_file", "dir", "write");
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deny("auditd", "security_spota_file", "file", "read");
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deny("auditd", "security_spota_file", "file", "write");
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deny("servicemanager", "security_spota_file", "dir", "read");
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deny("servicemanager", "security_spota_file", "dir", "write");
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deny("servicemanager", "security_spota_file", "file", "read");
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deny("servicemanager", "security_spota_file", "file", "write");
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deny("itsonbs", "security_spota_file", "dir", "read");
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deny("itsonbs", "security_spota_file", "dir", "write");
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deny("itsonbs", "security_spota_file", "file", "read");
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deny("itsonbs", "security_spota_file", "file", "write");
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deny("commonplatformappdomain", "security_spota_file", "dir", "read");
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deny("commonplatformappdomain", "security_spota_file", "dir", "write");
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deny("commonplatformappdomain", "security_spota_file", "file", "read");
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deny("commonplatformappdomain", "security_spota_file", "file", "write");
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}
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void allowSuClient(char *target) {
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allow(target, "rootfs", "file", "execute_no_trans");
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allow(target, "rootfs", "file", "execute");
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allow(target, "su", "unix_stream_socket", "connectto");
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allow(target, "su", "unix_stream_socket", "getopt");
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allow(target, "su_device", "dir", "search");
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allow(target, "su_device", "dir", "read");
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allow(target, "su_device", "sock_file", "read");
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allow(target, "su_device", "sock_file", "write");
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}
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void suRights() {
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allow("servicemanager", "su", "dir", "search");
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allow("servicemanager", "su", "dir", "read");
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allow("servicemanager", "su", "file", "open");
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allow("servicemanager", "su", "file", "read");
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allow("servicemanager", "su", "process", "getattr");
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allow("servicemanager", "su", "binder", "transfer");
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allow("system_server", "su", "binder", "call");
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}
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void otherToSU() {
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// allowLog
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allow("logd", "su", "dir", "search");
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allow("logd", "su", "file", "read");
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allow("logd", "su", "file", "open");
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allow("logd", "su", "file", "getattr");
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// suBackL0
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allow("system_server", "su", "binder", "call");
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allow("system_server", "su", "binder", "transfer");
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// ES Explorer opens a sokcet
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allow("untrusted_app", "su", "unix_stream_socket", "ioctl");
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allow("untrusted_app", "su", "unix_stream_socket", "read");
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allow("untrusted_app", "su", "unix_stream_socket", "getattr");
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allow("untrusted_app", "su", "unix_stream_socket", "write");
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allow("untrusted_app", "su", "unix_stream_socket", "setattr");
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allow("untrusted_app", "su", "unix_stream_socket", "lock");
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allow("untrusted_app", "su", "unix_stream_socket", "append");
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allow("untrusted_app", "su", "unix_stream_socket", "bind");
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allow("untrusted_app", "su", "unix_stream_socket", "connect");
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allow("untrusted_app", "su", "unix_stream_socket", "getopt");
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allow("untrusted_app", "su", "unix_stream_socket", "setopt");
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allow("untrusted_app", "su", "unix_stream_socket", "shutdown");
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allow("untrusted_app", "su", "unix_stream_socket", "connectto");
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// Any domain is allowed to send su "sigchld"
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allow(ALL, "su", "process", "sigchld");
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// uNetworkL0
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attradd("su", "netdomain");
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attradd("su", "bluetoothdomain");
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// suBackL6
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allow("surfaceflinger", "app_data_file", "dir", ALL);
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allow("surfaceflinger", "app_data_file", "file", ALL);
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allow("surfaceflinger", "app_data_file", "lnk_file", ALL);
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attradd("surfaceflinger", "mlstrustedsubject");
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// suMiscL6
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if (exists("audioserver"))
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allow("audioserver", "audioserver", "process", "execmem");
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}
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void full_rules() {
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// Samsung specific
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// Prevent system from loading policy
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if(exists("knox_system_app"))
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samsung();
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// Min rules first
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min_rules();
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// Create domains if they don't exist
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if (!exists("su_device"))
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create("su_device");
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enforce("su_device");
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// Patch su to everything
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allow("su", ALL, ALL, ALL);
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// Autotransition su's socket to su_device
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add_transition("su", "device", "file", "su_device");
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add_transition("su", "device", "dir", "su_device");
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allow("su_device", "tmpfs", "filesystem", "associate");
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// Transition from untrusted_app to su_client
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allowSuClient("shell");
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allowSuClient("untrusted_app");
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allowSuClient("system_app");
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allowSuClient("platform_app");
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if (exists("priv_app"))
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allowSuClient("priv_app");
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if (exists("ssd_tool"))
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allowSuClient("ssd_tool");
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// Allow init to execute su daemon/transition
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allow("init", "su", "process", "transition");
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allow("init", "su", "process", "rlimitinh");
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allow("init", "su", "process", "siginh");
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allow("init", "su", "process", "noatsecure");
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suRights();
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otherToSU();
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// Need to set su_device/su as trusted to be accessible from other categories
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attradd("su_device", "mlstrustedobject");
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attradd("su", "mlstrustedsubject");
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}
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// Minimal to run Magisk script before live patching
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void min_rules() {
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if (!exists("su"))
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create("su");
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permissive("su");
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permissive("init");
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attradd("su", "mlstrustedsubject");
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// Let init run stuffs in su context
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allow("kernel", "su", "fd", "use");
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allow("init", "su", "process", ALL);
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allow("init", "system_file", "dir", ALL);
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allow("init", "system_file", "lnk_file", ALL);
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allow("init", "system_file", "file", ALL);
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// Misc: basic shell scripts, prop management etc.
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allow("su", "property_socket", "sock_file", "write");
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if (exists("default_prop"))
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allow("su", "default_prop", "property_service", "set");
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allow("su", "init", "unix_stream_socket", "connectto");
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allow("su", "su", "unix_dgram_socket", ALL);
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allow("su", "su", "unix_stream_socket", ALL);
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allow("su", "su", "process", ALL);
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allow("su", "su", "capability", ALL);
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allow("su", "su", "file", ALL);
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allow("su", "su", "fifo_file", ALL);
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allow("su", "su", "lnk_file", ALL);
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allow("su", "su", "dir", ALL);
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// Allow su to do anything to files/dir/links
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allow("su", ALL, "file", ALL);
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allow("su", ALL, "dir", ALL);
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allow("su", ALL, "lnk_file", ALL);
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// For sepolicy live patching
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allow("su", "kernel", "security", "read_policy");
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allow("su", "kernel", "security", "load_policy");
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// For mounting loop devices and mirrors
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allow("su", "kernel", "process", "setsched");
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allow("su", "labeledfs", "filesystem", "mount");
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allow("su", "labeledfs", "filesystem", "unmount");
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allow("su", "loop_device", "blk_file", ALL);
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allow("su", "block_device", "blk_file", ALL);
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allow("su", "system_block_device", "blk_file", ALL);
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// Xposed
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allow("untrusted_app", "untrusted_app", "capability", "setgid");
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allow("system_server", "dex2oat_exec", "file", ALL);
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}
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