72 lines
2.7 KiB
Text
72 lines
2.7 KiB
Text
type superuser_device, file_type, mlstrustedobject;
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## Perms for the daemon
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userdebug_or_eng(`
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domain_trans(init, su_exec, sudaemon)
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typeattribute sudaemon domain, mlstrustedsubject;
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type_transition sudaemon socket_device:sock_file superuser_device;
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# The userspace app uses /dev sockets to control per-app access
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allow sudaemon superuser_device:dir { create rw_dir_perms setattr unlink };
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allow sudaemon superuser_device:sock_file { create setattr unlink write };
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# sudaemon is also permissive to permit setenforce.
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permissive sudaemon;
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# Add sudaemon to various domains
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net_domain(sudaemon)
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app_domain(sudaemon)
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dontaudit sudaemon self:capability_class_set *;
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dontaudit sudaemon kernel:security *;
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dontaudit sudaemon kernel:system *;
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dontaudit sudaemon self:memprotect *;
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dontaudit sudaemon domain:process *;
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dontaudit sudaemon domain:fd *;
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dontaudit sudaemon domain:dir *;
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dontaudit sudaemon domain:lnk_file *;
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dontaudit sudaemon domain:{ fifo_file file } *;
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dontaudit sudaemon domain:socket_class_set *;
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dontaudit sudaemon domain:ipc_class_set *;
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dontaudit sudaemon domain:key *;
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dontaudit sudaemon fs_type:filesystem *;
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dontaudit sudaemon {fs_type dev_type file_type}:dir_file_class_set *;
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dontaudit sudaemon node_type:node *;
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dontaudit sudaemon node_type:{ tcp_socket udp_socket rawip_socket } *;
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dontaudit sudaemon netif_type:netif *;
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dontaudit sudaemon port_type:socket_class_set *;
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dontaudit sudaemon port_type:{ tcp_socket dccp_socket } *;
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dontaudit sudaemon domain:peer *;
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dontaudit sudaemon domain:binder *;
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dontaudit sudaemon property_type:property_service *;
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dontaudit sudaemon appops_service:service_manager *;
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')
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## Perms for the app
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userdebug_or_eng(`
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# Translate user apps to the shell domain when using su
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#
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# PR_SET_NO_NEW_PRIVS blocks this :(
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# we need to find a way to narrow this down to the actual exec.
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# typealias shell alias suclient;
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# domain_auto_trans(untrusted_app, su_exec, suclient)
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allow untrusted_app su_exec:file { execute_no_trans getattr open read execute };
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allow untrusted_app sudaemon:unix_stream_socket { connectto read write setopt ioctl };
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allow untrusted_app superuser_device:dir { r_dir_perms };
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allow untrusted_app superuser_device:sock_file { write };
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# For Settings control of access
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allow system_app superuser_device:sock_file { read write create setattr unlink getattr };
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allow system_app sudaemon:unix_stream_socket { connectto read write setopt ioctl };
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allow system_app superuser_device:dir { create rw_dir_perms setattr unlink };
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allow kernel sudaemon:fd { use };
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')
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neverallow { domain userdebug_or_eng(`-dumpstate -shell -su -untrusted_app -init -sudaemon') } su_exec:file no_x_file_perms;
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