These test use fopen() with append which includes O_CREAT. If these
tests are run in the 'su' SELinux domain (aka through `adb root`) then
they'll create a blank text file when opening /dev/pmsg0 if it does
not exist. Other tests and processes will attempt to write to this
file, either succeeding (for 'su' domain processes) and wasting memory,
or failing due to SELinux and generating audits (for typical
processes).
This isn't a problem for user builds, since without `adb root`, the
tests simply fail when pmsg0 does not exist.
Test: no excess denials or /dev/pmsg0 creation when running
liblog-unit-tests as root
Change-Id: I06e0f308c72db5a53c5f9e4a29bd23f56352c7e2
socket_local_client() was copied from libcutils, but we only need a
small subset of its functionality. We instead create our own version
with just the needed parts.
Importantly, use CLOEXEC in this new function and other places where
it was missing previously.
Test: logging works, liblog-unit-tests
Change-Id: Ifb929227af67bafa13e391eab92358d9f6fe6450
Utilize liblog-unit-tests as a CTS test
Replacement for EventLogTest#testWriteEventWithOversizeValue
along with some other mandatory logging functionality.
Test: run cts tests
Bug: 26235244
Change-Id: I71f549bd0b93f6c41e1f91565b0fbddf042e4991
NB: bionic stdio is broken when providing appropriate errno value(s)
on failure so libc.__pstore_append will not report pmsg
misconfigured correctly on android for now.
Test: misconfigured kernel, watch for this message in liblog-unit-tests
Change-Id: Ifb1b550c7d3a3888000459c2f68c392cc23c379f
Move away from using POSIX open(2) flags and introduce ANDROID_LOG_* flags to
replace them. Add security by preventing random mode flags from getting into
underlying POSIX calls. ANDROID_LOG_* flags overlap POSIX O_* flag definitions.
Change-Id: Ib32bb64c287e8bf150be62242e1ba46bb37839fc
