Remove init, ueventd, watchdogd, healthd and adbd from the set of
domains traceable by debuggerd. bionic/linker/debugger.cpp sets up
handlers for all dynamically linked programs in Android but this
should not apply for statically linked programs.
Exclude ptrace access from unconfineddomain.
Prohibit ptrace access to init via neverallow.
Change-Id: I70d742233fbe40cb4d1772a4e6cd9f8f767f2c3a
Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
This change removes the permissive line from unconfined
domains. Unconfined domains can do (mostly) anything, so moving
these domains into enforcing should be a no-op.
The following domains were deliberately NOT changed:
1) kernel
2) init
In the future, this gives us the ability to tighten up the
rules in unconfined, and have those tightened rules actually
work.
When we're ready to tighten up the rules for these domains,
we can:
1) Remove unconfined_domain and re-add the permissive line.
2) Submit the domain in permissive but NOT unconfined.
3) Remove the permissive line
4) Wait a few days and submit the no-permissive change.
For instance, if we were ready to do this for adb, we'd identify
a list of possible rules which allow adbd to work, re-add
the permissive line, and then upload those changes to AOSP.
After sufficient testing, we'd then move adb to enforcing.
We'd repeat this for each domain until everything is enforcing
and out of unconfined.
Change-Id: If674190de3262969322fb2e93d9a0e734f8b9245
Otherwise it defaults to the label of /data/system and
cannot be distinguished from any other socket in that directory.
Also adds allow rule required for pre-existing wpa_socket transition
to function without unconfined_domain.
Change-Id: I57179aa18786bd56d247f397347e546cca978e41
Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
This prevents denials from being generated by the base policy.
Over time, these rules will be incrementally tightened to improve
security.
Change-Id: I4be1c987a5d69ac784a56d42fc2c9063c402de11
/data/security is another location that policy
files can reside. In fact, these policy files
take precedence over their rootfs counterparts
under certain circumstances. Give the appropriate
players the rights to read these policy files.
Change-Id: I9951c808ca97c2e35a9adb717ce5cb98cda24c41
Read access to /dev/log/* is no longer restricted.
Filtering on reads is performed per-uid by the kernel logger driver.
Change-Id: Ia986cbe66b84f3898e858c60f12c7f3d63ac47cf
Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
