75806ef3c5
Ideally, public should only contain APIs (types / attributes) for
vendor. The other statements like allow/neverallow/typeattributes are
regarded as implementation detail for platform and should be in private.
Bug: 232023812
Test: m selinux_policy
Test: diff <(git diff --staged | grep "^-" | cut -b2- | sort) \
<(git diff --staged | grep "^+" | cut -b2- | sort)
Test: remove comments on plat_sepolicy.cil, replace base_typeattr_*
to base_typeattr and then compare old and new plat_sepolicy.cil
Change-Id: I5e7d2da4465ab0216de6bacdf03077d37f6ffe12
64 lines
2.3 KiB
Text
64 lines
2.3 KiB
Text
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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r_dir_file(logpersist, cgroup_v2)
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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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get_prop(logpersist, logd_prop)
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read_runtime_log_tags(logpersist)
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')
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# logcatd is a shell script that execs logcat with various parameters.
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allow logpersist shell_exec:file rx_file_perms;
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allow logpersist logcat_exec:file rx_file_perms;
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allowxperm logpersist misc_logd_file:file ioctl {
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F2FS_IOC_RELEASE_COMPRESS_BLOCKS
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FS_IOC_SETFLAGS
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};
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###
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### Neverallow rules
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###
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### logpersist should NEVER do any of this
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# Block device access.
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neverallow logpersist dev_type:blk_file { read write };
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# ptrace any other app
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neverallow logpersist domain:process ptrace;
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# Write to files in /data/data or system files on /data except misc_logd_file
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neverallow logpersist { app_data_file_type system_data_file }:dir_file_class_set write;
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# Only init should be allowed to enter the logpersist domain via exec()
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# Following is a list of debug domains we know that transition to logpersist
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# neverallow_with_undefined_domains {
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# domain
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# -init # goldfish, logcatd, raft
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# -mmi # bat, mtp8996, msmcobalt
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# -system_app # Smith.apk
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# } logpersist:process transition;
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neverallow * logpersist:process dyntransition;
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# logpersist is allowed to write to /data/misc/log for userdebug and eng builds
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neverallow logpersist {
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file_type
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userdebug_or_eng(`-misc_logd_file -coredump_file')
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with_native_coverage(`-method_trace_data_file')
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}:file { create write append };
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neverallow { domain -init -dumpstate -incidentd userdebug_or_eng(`-logpersist -logd') } misc_logd_file:file no_rw_file_perms;
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neverallow { domain -init userdebug_or_eng(`-logpersist -logd') } misc_logd_file:file no_w_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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