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
25 lines
1011 B
Plaintext
25 lines
1011 B
Plaintext
typeattribute logpersist coredomain;
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# android debug log storage in logpersist domains (eng and userdebug only)
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userdebug_or_eng(`
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r_dir_file(logpersist, cgroup)
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allow logpersist misc_logd_file:file create_file_perms;
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allow logpersist misc_logd_file:dir rw_dir_perms;
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allow logpersist self:global_capability_class_set sys_nice;
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allow logpersist pstorefs:dir search;
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allow logpersist pstorefs:file r_file_perms;
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control_logd(logpersist)
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unix_socket_connect(logpersist, logdr, logd)
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read_runtime_log_tags(logpersist)
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')
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# logpersist is allowed to write to /data/misc/log for userdebug and eng builds
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neverallow logpersist { file_type userdebug_or_eng(`-misc_logd_file -coredump_file') }:file { create write append };
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neverallow { domain -init userdebug_or_eng(`-logpersist -logd -dumpstate') } misc_logd_file:file no_rw_file_perms;
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neverallow { domain -init userdebug_or_eng(`-logpersist -logd') } misc_logd_file:dir { add_name link relabelfrom remove_name rename reparent rmdir write };
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