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>
- Add write_logd, read_logd and control_logd macros added along
with contexts for user space logd.
- Specify above on domain wide, or service-by-service basis
- Add logd rules.
- deprecate access_logcat as unused.
- 'allow <domain> zygote:unix_dgram_socket write;' rule added to
deal with fd inheritance. ToDo: investigate means to allow
references to close, and reopen in context of application
or call setsockcreatecon() to label them in child context.
Change-Id: I35dbb9d5122c5ed9b8c8f128abf24a871d6b26d8
See http://code.google.com/p/android/issues/detail?id=65339
Further denials were observed in testing and allowed as well.
Change-Id: I54e56bf5650b50b61e092a6dac45c971397df60f
Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
Permissive domains are only intended for development.
When a device launches, we want to ensure that all
permissive domains are in, at a minimum, unconfined+enforcing.
Add FORCE_PERMISSIVE_TO_UNCONFINED to Android.mk. During
development, this flag is false, and permissive domains
are allowed. When SELinux new feature development has been
frozen immediately before release, this flag will be flipped
to true. Any previously permissive domains will move into
unconfined+enforcing.
This will ensure that all SELinux domains have at least a
minimal level of protection.
Unconditionally enable this flag for all user builds.
Change-Id: I1632f0da0022c80170d8eb57c82499ac13fd7858
Add the necessary rules to support dumpstate.
Start off initially in permissive until it has more testing.
Dumpstate is triggered by running "adb bugreport"
Change-Id: Ic17a60cca1f6f40daa4f2c51e9ad6009ef36cfbd
