9b2e0cbeea
In kernel 4.7, the capability and capability2 classes were split apart
from cap_userns and cap2_userns (see kernel commit
8e4ff6f228e4722cac74db716e308d1da33d744f). Since then, Android cannot be
run in a container with SELinux in enforcing mode.
This change applies the existing capability rules to user namespaces as
well as the root namespace so that Android running in a container
behaves the same on pre- and post-4.7 kernels.
This is essentially:
1. New global_capability_class_set and global_capability2_class_set
that match capability+cap_userns and capability2+cap2_userns,
respectively.
2. s/self:capability/self:global_capability_class_set/g
3. s/self:capability2/self:global_capability2_class_set/g
4. Add cap_userns and cap2_userns to the existing capability_class_set
so that it covers all capabilities. This set was used by several
neverallow and dontaudit rules, and I confirmed that the new
classes are still appropriate.
Test: diff new policy against old and confirm that all new rules add
only cap_userns or cap2_userns;
Boot ARC++ on a device with the 4.12 kernel.
Bug: crbug.com/754831
Change-Id: I4007eb3a2ecd01b062c4c78d9afee71c530df95f
40 lines
1.3 KiB
Text
40 lines
1.3 KiB
Text
# charger 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 charger, domain;
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# Write to /dev/kmsg
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allow charger kmsg_device:chr_file rw_file_perms;
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# Read access to pseudo filesystems.
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r_dir_file(charger, sysfs_type)
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r_dir_file(charger, rootfs)
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r_dir_file(charger, cgroup)
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allow charger self:global_capability_class_set { sys_tty_config };
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allow charger self:global_capability_class_set sys_boot;
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wakelock_use(charger)
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allow charger self:netlink_kobject_uevent_socket create_socket_perms_no_ioctl;
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# Read/write to /sys/power/state
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allow charger sysfs_power:file rw_file_perms;
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allow charger sysfs_batteryinfo:file r_file_perms;
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# Read /sys/fs/pstore/console-ramoops
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# Don't worry about overly broad permissions for now, as there's
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# only one file in /sys/fs/pstore
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allow charger pstorefs:dir r_dir_perms;
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allow charger pstorefs:file r_file_perms;
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allow charger graphics_device:dir r_dir_perms;
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allow charger graphics_device:chr_file rw_file_perms;
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allow charger input_device:dir r_dir_perms;
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allow charger input_device:chr_file r_file_perms;
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allow charger tty_device:chr_file rw_file_perms;
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allow charger proc_sysrq:file rw_file_perms;
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# charger needs to tell init to continue the boot
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# process when running in charger mode.
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set_prop(charger, system_prop)
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