Incidentd needs to access /data/misc/logd to get persisted logs for
debugging purposes. Relax permissions on /data/misc/logd to allow
group (log) to access the dir and read its files. Effectively change
to:
drwxr-x--- logd log /data/misc/logd
-rw-r----- logd log /data/misc/logd/logcat*
Since this dir stores the past output of logcat, anyone that can run
logcat can be granted access to this dir. Access to this dir is further
guarded by SELinux. So it is safe.
Bug: 147924172
Test: Build, flash, reboot. Verify that the files have the right
permissions.
Change-Id: I4d2aa9d5883d1ef14411b2b3902f0ca7c641dd7e
package_string() isn't readable in its current form and a loop is
unnecessary, so let's replace that with the direct calculations. The
new and old functions are identical in results except an edge case
where the old function incorrectly believes it needs to round up to
'10' for the size prefix, when '9' would be ok, specifically:
10\naaaaa\n\f vs 9\naaaaa\n\f. This is true for all powers of 10.
Clean up the calling side in logcat as well.
Test: printing log statistics and prune list works
Change-Id: Ib62ab2badab59040215b130ec9e3efbc7c95af3f
The current version requires callers to supply a string with 32 extra
bytes for liblog to internally prepend "setPruneList ", and to have
enough space to parse logd's return string. That is an unacceptable
requirement on callers.
This change removes that requirement by having liblog allocate the
needed std::string in any case.
It also stops writing back the 'success' or 'Invalid' string to the
caller's buffer, since that is redundant as well.
Test: changing prune settings works.
Change-Id: Ic0f03a229f0b9a77d03adcb91288370c3bd42903
* The --help text is way too long to print after each error, so simply
print the errors and exit.
* Report errno in a few cases where it was previously not reported
* Fix more punctuation
* Fix '?' and ':' getopt_long() return cases for long options.
Test: errors look better
Change-Id: I57058a2250e9f3c3431f104e43f0eb5ec60d8c8a
* Print an error if -c is provided with -f and -L since it is ambiguous
* Move the clear operation when -f is provided to a stand alone
location, since there is no need to loop
* Prevent -g/-G, -S, and -p/-P with -f, since that combination doesn't
make sense
Test: logpersist works
Change-Id: I6d8709bd61c898c47835470e99b0acff8c2692e4
Makes slight improvements to the --help text:
- Fix whitespace formatting and punctuation.
- Divide options into categories
- Clarify how the logd control functions work.
- Clarify --print.
Add additional text to the EOF error message that is returned when
logd disconnects the logcat instance, to clarify that this is intended
behavior if the logcat instance is reading too slowly.
Bug: 144311420
Test: view these messages
Change-Id: Icc12d278a8e8cb483918c0637b6fb529949cc33f
Logcat dup-es STDOUT and used the dup-ed file descriptor to write logging
information. Because of this writes happen on that fd and not on stdout.
This in turn causes no output in the LogcatService in the emulator.
The qemu-pipe forwarder now dup-es the same fd as logcat is using so
that we receive data again.
Bug: b/145214141
Test: Logcat works again in emulator 29.2.10
Change-Id: Ia6e2430f1d7a0476a5b438d315a9ea337c13806d
There are a set of functions, such as android_logger_get_log_size()
and android_logger_get_prune_list() that talk to the logd command
socket to perform their activities. There's a transport abstraction
layer that handles these symbols to optionally route them to other
transports, originally designed for pstore or local logger; however
these functions fundamentally only make sense for logd.
Ideally, these functions would be removed and new functions would be
added that do not depend on struct logger_list or struct logger and
more clearly indicate that they only work with logd. For example:
android_logger_get_size(struct logger*) could be
logd_get_buffer_size(log_id_t log_id). We would remove the need to
'open' the struct logger and make it clear that it only operates on
logd.
Since liblog is an llndk library however, we cannot change or remove
these symbols. Since these symbols are not frequently used, it seems
acceptable to keep them as is and not introduce improved versions.
We, however, do want to simplify the code that handles them and this
change removes the transport abstraction layer that handles them.
They retain the behavior that unless the struct logger_list was opened
for logd, that the functions return -EINVAL.
The one exception to this is android_logger_clear(). If the struct
logger provided to this function was opened from a struct logger_list
that used pstore for its mode argument, this function will clear the
entire pstore log. This function does not respect the 'logId'
parameter of the struct logger, since that would not be possible.
This change removes this android_logger_clear() behavior and makes it
strictly for logd, for symmetry with the rest of the functions and due
to the lack of clarity regarding the 'logId' parameter of its input.
The only caller of this function, logcat, will clear pstore directly.
struct logger was built to encapsulate the information needed to
connect to a logger device from the old kernel logger. Now that we
only support reading from pstore and from logd, there is much less
information needed to be captured. Specifically, we only need to know
the log_id and whether or not it was opened as part of a pstore or
logd 'list'.
Test: liblog-unit-test
Test: logcat -c/-g/-G/-p/-P/-S work
Test: logcat -c works with -L
Test: logcat -g/-G/-p/-P/-S continue to fail with -L
Change-Id: I2c549b6f8539de94510e223949ab209ecc40e2d0
Removing the rest of liblogcat broke logcatd since LogcatPanic() now
actually calls exit(), whereas logcatd relied on it to return
normally.
We can achieve the expected behavior with a small shell script, so
this change does that as well.
Test: logcatd / logpersist work
Change-Id: Icde36a4811a0db987a801978485e1af1dfc3d38c
1) Use libbase parsing functions instead of our own versions
2) Remove log_device_t, as it's an unneeded wrapper around log buffers
3) Do not report 'unexpected' if we get a log from a buffer that we
didn't reqest. I checked and I don't see any references to this
happening in practice, so the code is mostly superfluous. It seems
reasonable enough to report the actual buffer name instead of
'unexpected' in any case.
4) Print all buffers that experience an error, not just the first one
seen.
Test: logcat works, logcat-unit-tests
Change-Id: Ic50074cfb716f63f3eda261f1cd236d7afaf453a
There were big changes made to support liblogcat, which has long since
been removed. This change removes the rest of those changes.
It moves the rest of the global state into a class, particularly for
the logcatd case. The original code re-uses the same context, but
that doesn't seem right or safe.
Test: logcat works, logcat-unit-tests
Test: logpersist works, including last log cat and log rotation
Change-Id: Iee6a2a0319265e87be0bc8fec2b11e8fd2b65ed4
logger_entry and logger_entry_v2 were used for the kernel logger,
which we have long since deprecated. logger_entry_v3 is the same as
logger_entry_v4 without a uid field, so it is trivially removable,
especially since we're now always providing uids in log messages.
liblog and logd already get updated in sync with each other, so we
have no reason for backwards compatibility with their format.
Test: build, unit tests
Change-Id: I27c90609f28c8d826e5614fdb3fe59bde22b5042
There will be some unnecessary error logs caused
by extra logic was reported by init when some properties
were set default values. This patch remove these logic
codes to remove these avoidable error logs.
Bug: 137567691
Test: Can use logcat -r -n with configures
Change-Id: I9b8fa2025bcbef5d39438a8243f9ff5dc0a645df
Signed-off-by: Tian, Baofeng <baofeng.tian@intel.com>
Signed-off-by: Duan, YayongX <yayongx.duan@intel.com>
I'm asked at least once a week or more why a new service isn't starting.
Usually, the reason is that "File ... has incorrect label or no domain
transition from ... to another SELinux domain defined. ..." from init.
Even in permissive mode, this is required.
Bug: 63014404
Test: boot, check logcat
Change-Id: I7244a56fc46f84e9592e1eccf2d23461691965b3
Logcatd has capability to output logs to filesystem with certain size
and certain file count, however file size is not configurable, fixed
as 1024 kbytes, file count is configurable, but original property
name didn't match the logcat parameter well.
This patch add interface rotate_kbytes and count into logcatd.rc.
rotate_kbytes used to control each logcat file size.
count is another alias for logd.logpersistd.size to control file number.
Bug: 133362078
Test: Can use logcat -r -n with configures
Change-Id: I9954c9c125a4ab4e49310986f81c734bf8ee96b3
Signed-off-by: Tian, Baofeng <baofeng.tian@intel.com>
Signed-off-by: Duan, YayongX <yayongx.duan@intel.com>
The definitions for event log tags are currently in system/core. Instead
of keeping them there, reserve a range for these event tags and move
them into com.android.server.policy.
Currently it is only used by PhoneWindowManager.
Bug: 128933363
Test: build only
Change-Id: Ida903499e9af8650299e3965787b4ac966b66915
Merged-In: Ida903499e9af8650299e3965787b4ac966b66915
There are a bunch of branches that check "id >= LOG_ID_MAX", but because
C++ hates you, this does a promotion to signed int despite the
fact that both sides of the comparison are the same enum with an
underlying type of unsigned int. (C++17 §7.6.3)
Return LOG_ID_MAX instead of a value that gets promoted to signed -1, to
avoid this.
Bug: http://b/129272512
Test: /data/nativetest64/logcat-unit-tests/logcat-unit-tests
Change-Id: I4b3ee662d76d5cc80d9a9625d17f7e5b5980de41
This reverts commit 1bef8c550c.
Reason for revert: AOSP is fixed with new vendor image
Change-Id: Ib341ac80e2f88c13a7815a490ea2d9422ebdf55f
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
logd/logcat use more symbols than the rest of the platform, so let's
statically link them for now while we understand the API that the
platform overall uses.
Test: build
Change-Id: I21ae1bd3ff9b310f099612fbe790f769712661df
Add FALLTHROUGH_INTENDED for clang compiler.
Bug: 112564944
Test: build with global -Wimplicit-fallthrough.
Change-Id: I40f8bbf94e207c9dd90921e9b762ba51abab5777
The units should be byte instead of bit and multiplier are kibibyte
mebibyte gibibyte respectively.
Bug: 114062206
Test: Build and logcat -g
Test: ./logcat-unit-tests
Change-Id: I995faa9a340bb63f48d117a1b8590e5d74ac1bba
Parsing logs isn't an API, and even if you want to do that, popen(3)
already exists.
Bug: N/A
Test: ran tests
Change-Id: I53c40be49141483da0a844a7af47da0b38d29781
This new event is logged by ART when hidden API accesses are detected.
Test: m
Test: $ adb lolcat -b events
Bug: 64382372
Bug: 77517571
Merged-In: I5ebb1424d83686dade0d34b118944b0c4c0c7bb1
Change-Id: I5ebb1424d83686dade0d34b118944b0c4c0c7bb1
(cherry picked from commit 8ec1c7ea7c)
This will prevent services from reaching out to logd if this tag is
present in the event log.
Bug: 64734187
Test: tree-hugger
Change-Id: If117e1c0cfa678af4190913f0ca87f4e92c54373
This change ensures that the logcatd binary is properly
included into builds which contain logpersist. logcatd
is required for logpersist to actually work.
Bug: 69171565
Test: make checkbuild
Test: verified that logcatd binary is present in build
Change-Id: I78161998763a4694ba88af43113fef39a5fbd8c8
