356f4be679
Writing to the /proc/self/attr files (encapsulated by the libselinux set*con functions) enables a program to request a specific security context for various operations instead of the policy-defined defaults. The security context specified using these calls is checked by an operation-specific permission, e.g. dyntransition for setcon, transition for setexeccon, create for setfscreatecon or setsockcreatecon, but the ability to request a context at all is controlled by a process permission. Omit these permissions from domain.te and only add them back where required so that only specific domains can even request a context other than the default defined by the policy. Change-Id: I6a2fb1279318625a80f3ea8e3f0932bdbe6df676 Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
70 lines
2.1 KiB
Text
70 lines
2.1 KiB
Text
# adbd seclabel is specified in init.rc since
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# it lives in the rootfs and has no unique file type.
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type adbd, domain;
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userdebug_or_eng(`
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allow adbd self:process setcurrent;
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allow adbd su:process dyntransition;
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')
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domain_auto_trans(adbd, shell_exec, shell)
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# this is an entrypoint
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allow adbd rootfs:file entrypoint;
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# Do not sanitize the environment or open fds of the shell.
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allow adbd shell:process noatsecure;
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# Set UID and GID to shell. Set supplementary groups.
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allow adbd self:capability { setuid setgid };
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# Drop capabilities from bounding set on user builds.
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allow adbd self:capability setpcap;
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# Create and use network sockets.
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net_domain(adbd)
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# Access /dev/android_adb or /dev/usb-ffs/adb/ep0
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allow adbd adb_device:chr_file rw_file_perms;
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allow adbd functionfs:dir search;
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allow adbd functionfs:file rw_file_perms;
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# Use a pseudo tty.
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allow adbd devpts:chr_file rw_file_perms;
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# adb push/pull /data/local/tmp.
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allow adbd shell_data_file:dir rw_dir_perms;
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allow adbd shell_data_file:file create_file_perms;
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# adb push/pull sdcard.
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allow adbd sdcard_type:dir create_dir_perms;
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allow adbd sdcard_type:file create_file_perms;
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# Set service.adb.*, sys.powerctl properties.
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unix_socket_connect(adbd, property, init)
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allow adbd shell_prop:property_service set;
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allow adbd powerctl_prop:property_service set;
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# XXX Run /system/bin/vdc to connect to vold. Run in a separate domain?
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# Also covers running /system/bin/bu.
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allow adbd system_file:file rx_file_perms;
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unix_socket_connect(adbd, vold, vold)
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# Perform binder IPC to surfaceflinger (screencap)
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# XXX Run screencap in a separate domain?
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binder_use(adbd)
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binder_call(adbd, surfaceflinger)
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# b/13188914
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allow adbd gpu_device:chr_file rw_file_perms;
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# Read /data/misc/adb/adb_keys.
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allow adbd adb_keys_file:dir search;
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allow adbd adb_keys_file:file r_file_perms;
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# ndk-gdb invokes adb forward to forward the gdbserver socket.
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allow adbd app_data_file:dir search;
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allow adbd app_data_file:sock_file write;
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allow adbd appdomain:unix_stream_socket connectto;
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# ndk-gdb invokes adb pull of app_process, linker, and libc.so.
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allow adbd zygote_exec:file r_file_perms;
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allow adbd system_file:file r_file_perms;
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