PWN-Hunter/android_system_sepolicy
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android_system_sepolicy/ueventd.te

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SE Android policy.
2012-01-04 09:33:27 -08:00
# ueventd seclabel is specified in init.rc since
# it lives in the rootfs and has no unique file type.
type ueventd, domain;
tmpfs_domain(ueventd)
Start confining ueventd * Keep ueventd in permissive * Drop unconfined macro to collect logs * Restore allow rules to current NSA maintained policy Change-Id: Ic4ee8e24ccd8887fed151ae1e4f197512849f57b
2013-10-06 12:36:11 -07:00
write_klog(ueventd)
security_access_policy(ueventd)
relabelto_domain(ueventd)
SE Android policy.
2012-01-04 09:33:27 -08:00
allow ueventd rootfs:file entrypoint;
Start confining ueventd * Keep ueventd in permissive * Drop unconfined macro to collect logs * Restore allow rules to current NSA maintained policy Change-Id: Ic4ee8e24ccd8887fed151ae1e4f197512849f57b
2013-10-06 12:36:11 -07:00
allow ueventd init:process sigchld;
allow ueventd self:capability { chown mknod net_admin setgid fsetid sys_rawio dac_override fowner };
allow ueventd device:file create_file_perms;
allow ueventd device:chr_file rw_file_perms;
allow ueventd sysfs:file rw_file_perms;
allow ueventd sysfs:file setattr;
allow ueventd sysfs_type:file { relabelfrom relabelto };
Move sysfs_devices_system_cpu to the central policy. Every device has a CPU. This is not device specific. Allow every domain to read these files/directories. For unknown reasons, these files are accessed by A LOT of processes. Allow ueventd to write to these files. This addresses the following denials seen on mako: <5>[ 4.935602] type=1400 audit(1383167737.512:4): avc: denied { read } for pid=140 comm="ueventd" name="cpu0" dev="sysfs" ino=3163 scontext=u:r:ueventd:s0 tcontext=u:object_r:sysfs_devices_system_cpu:s0 tclass=dir <5>[ 4.935785] type=1400 audit(1383167737.512:5): avc: denied { open } for pid=140 comm="ueventd" name="cpu0" dev="sysfs" ino=3163 scontext=u:r:ueventd:s0 tcontext=u:object_r:sysfs_devices_system_cpu:s0 tclass=dir <5>[ 4.935937] type=1400 audit(1383167737.512:6): avc: denied { search } for pid=140 comm="ueventd" name="cpu0" dev="sysfs" ino=3163 scontext=u:r:ueventd:s0 tcontext=u:object_r:sysfs_devices_system_cpu:s0 tclass=dir <5>[ 4.936120] type=1400 audit(1383167737.512:7): avc: denied { write } for pid=140 comm="ueventd" name="uevent" dev="sysfs" ino=3164 scontext=u:r:ueventd:s0 tcontext=u:object_r:sysfs_devices_system_cpu:s0 tclass=file <5>[ 4.936303] type=1400 audit(1383167737.512:8): avc: denied { open } for pid=140 comm="ueventd" name="uevent" dev="sysfs" ino=3164 scontext=u:r:ueventd:s0 tcontext=u:object_r:sysfs_devices_system_cpu:s0 tclass=file Change-Id: I4766dc571762d8fae06aa8c26828c070b80f5936
2013-10-30 14:12:21 -07:00
allow ueventd sysfs_devices_system_cpu:file rw_file_perms;
Start confining ueventd * Keep ueventd in permissive * Drop unconfined macro to collect logs * Restore allow rules to current NSA maintained policy Change-Id: Ic4ee8e24ccd8887fed151ae1e4f197512849f57b
2013-10-06 12:36:11 -07:00
allow ueventd tmpfs:chr_file rw_file_perms;
allow ueventd dev_type:dir create_dir_perms;
allow ueventd dev_type:lnk_file { create unlink };
allow ueventd dev_type:chr_file { create setattr unlink };
allow ueventd dev_type:blk_file { create setattr unlink };
Clean up socket rules. Replace * or any permission set containing create with create_socket_perms or create_stream_socket_perms. Add net_domain() to all domains using network sockets and delete rules already covered by domain.te or net.te. For netlink_route_socket, only nlmsg_write needs to be separately granted to specific domains that are permitted to modify the routing table. Clarification: read/write permissions are just ability to perform read/recv() or write/send() on the socket, whereas nlmsg_read/ nlmsg_write permissions control ability to observe or modify the underlying kernel state accessed via the socket. See security/selinux/nlmsgtab.c in the kernel for the mapping of netlink message types to nlmsg_read or nlmsg_write. Delete legacy rule for b/12061011. This change does not touch any rules where only read/write were allowed to a socket created by another domain (inherited across exec or received across socket or binder IPC). We may wish to rewrite some or all of those rules with the rw_socket_perms macro but that is a separate change. Change-Id: Ib0637ab86f6d388043eff928e5d96beb02e5450e Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
2014-02-24 12:06:11 -08:00
allow ueventd self:netlink_kobject_uevent_socket create_socket_perms;
Start confining ueventd * Keep ueventd in permissive * Drop unconfined macro to collect logs * Restore allow rules to current NSA maintained policy Change-Id: Ic4ee8e24ccd8887fed151ae1e4f197512849f57b
2013-10-06 12:36:11 -07:00
allow ueventd efs_file:dir search;
allow ueventd efs_file:file r_file_perms;
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