Commit Graph

20 Commits

Author SHA1 Message Date
Mark Salyzyn 95108f1844 logd: improve details on chatty records
(Cherry pick from commit 21fb7e0b75)

- Report applications UID, TID/PID by name.
- change wording to have an accurate connotation
- drop privilege check since filtered upstream

Bug: 19608965
Bug: 20334069
Bug: 20370119
Change-Id: I2b1c26580b4c2de293874214ff5ae745546f3cca
2015-04-30 15:25:12 -07:00
Mark Salyzyn 202e153f94 logd: propagate ::log status
Add a return value for the ::log() methods, this allows
us to optimize the wakeup for the readers to only occur
when the log message is actually placed.

This is for a future where we may dedupe identical log
messages, filter out log messages, and certainly if we
filter the messages out with an internal logd check of
__android_log_is_loggable().

Change-Id: I763b2a7c29502ab7fa0a5d5022c7b60244fcfde4
2015-04-15 19:43:28 -07:00
Mark Salyzyn 56c6575da7 Merge "logd: syscall optimization" 2015-04-15 14:45:24 +00:00
Mark Salyzyn 08739ba71f logd: uidToName improvement
- read packages.list to acquire package names
- hijack the reinit handler as a privileged worker

Bug: 19608965
Change-Id: If7becb34354d6415e5c387ecea7d4109a15259c9
2015-04-08 14:47:54 -07:00
Mark Salyzyn e3aeeeeccc logd: syscall optimization
- prset(PR_SET_NAME) call once
- No need to call getuid(), should be AID_LOGD

Change-Id: I4dde0b178bc84e711b355cd7677b0dbf905a0634
2015-04-01 19:41:59 +00:00
Mark Salyzyn ccbadc6be0 logd: report reinit
Bug: 19681572
Change-Id: I343b9d108f064f87df79512a0fdf1b35513c3136
2015-03-12 20:38:53 +00:00
Mark Salyzyn 11e55cb9c1 logd: add reinit command
- respond to SIGHUP
- respond to logd command "reinit"
- respond to logd --reinit
- reopens files on /data, eg: re-read of persistent properties

Bug: 19681572
Change-Id: Iadac58e6653f027cb7355497bd675eef376ce0a8
2015-03-12 12:24:47 -07:00
Mark Salyzyn 4ed16b4381 Revert "logd: Add minimum time bucket statistics"
This forward port reverts
    commit e457b74ce6

No longer as necessary once we add
    liblog: Instrument logging of logd write drops
Although this provided an indication of how close statistically we
were to overloading logd it is simpler to understand fails thus to
hunt and peck a corrected value for /proc/sys/net/unix/max_dgram_qlen

Change-Id: I2b30e0fc30625a48fd11a12c2d2cc6a41f26226f
2015-03-04 13:21:41 -08:00
Mark Salyzyn 56ba4b5b77 logd: logd placed into background cgroup
Change-Id: I38d7be05ab77fc944a9dbef2b6575d4caa920d08
2015-02-04 01:38:34 +00:00
Mark Salyzyn eb06de716b logd: auditd remove logDmesg method
- logDmesg method consumes considerable memory
  resources (typically 128KB depending on kernel)
- In the future (eg: klogd, syslogd) there may be need to
  feed multiple logs or threads with the retrieved data.
- By moving the actions of logDmesg into the mainline that
  instantiates the thread objects, we can leverage a single
  allocation of the the kernel log allocation.
- logDmesg (private) is replaced with log (public) which
  has a more useful and descriptive purpose for the class.

Change-Id: Ie2dd0370661493c1e596a7e486904a0e8caab9ff
2014-12-05 20:56:44 +00:00
Mark Salyzyn f5fc509589 logd: Add control statistics enable/disable.
- ro.build.type=user turn off statistics
- ro.config.low_ram=true turn off statistics
- logd.statistics override

Bug: 17526159
Bug: 17526187
Change-Id: I74796043ac34753c6dd10018719ebc0bcd94e00f
2014-10-06 22:42:47 +00:00
Elliott Hughes e5a0f2064b Fix implicit declaration of function 'prctl' in logd.
Change-Id: I0f655ad15295739adb8f04ec62c88a220413875e
2014-07-18 17:39:41 -07:00
Mark Salyzyn e0fa291e89 logd: add logd.auditd property
- permit us a mechanism to disable auditd
- standardize property boolean

Bug: 14275676
Change-Id: I76f245c6aee511ed44274159e0ea55915b484dda
2014-04-29 07:25:27 -07:00
Mark Salyzyn dfc47e8685 logd: libsysutils: logd startup outside init environment
Change-Id: I3426b6c3eebdd0c8258e966dcaaaa2825d7a23d1
2014-04-17 16:14:24 +00:00
Mark Salyzyn e9bebd0eb1 logd: auditd: add logd.auditd.dmesg property
Change-Id: If4a579c2221eec99cf3f6acf59ead8c2d5230517
2014-04-07 10:51:00 -07:00
William Roberts 29d238d2a8 logd: selinux auditd initial commit
Initial commit for an audit daemon that writes kernel audit
messages to the Android logger. The daemon searches dmesg
for all lines that contain "audit" and writes them. Then
receiving the messages from the netlink socket.

It also formats the messages so they are compatable with
ausearch (type=<t> <m> format)

Modified: Mark Salyzyn <salyzyn@google.com>

- do not start auditd
- merge into logd, stripping unnecessary file logging.
- Convert headers and code to support C++
- Fix bugs in libaudit
- squash timestamp (replace with 0.0) due to duplication
- squash pid due to duplication
- squash comm due to duplication

Change-Id: I421bcf33e7e670d596628b1b5c7c25536ce2d3fe
2014-04-07 10:51:00 -07:00
Mark Salyzyn e457b74ce6 logd: Add minimum time bucket statistics
* Only enabled for dev builds because halves performance.
- Used to establish if /proc/sys/net/unix/max_dgram_qlen
  is appropriate for the platform
  (see logd/LogStatistics.cpp comments)
- enabled if logd.dgram_qlen.statistics is not zero/empty

Change-Id: Ib8ecfeb75b6f0f954c099a6b1032b8afb5efcbd4
2014-04-01 14:38:52 -07:00
Mark Salyzyn 581edc1b6c set /proc/sys/net/unix/max_dgram_qlen to large value
- init: set /proc/sys/net/unix/max_dgram_qlen to 300
- libsysutils: Add listen backlog argument to startListener
- logd: set listen backlog to 300

Change-Id: Id6d37d6c937ba2d221e76258d89c9516619caeec
2014-03-03 12:48:00 -08:00
Mark Salyzyn 882f856668 logd: Add SCHED_BATCH to reduce priority
(cherry picked from commit 85620a1bff)

Change-Id: Id25cdef0dd7f8c5e154a0da2db2dd0554849babc
2014-02-26 09:55:03 -08:00
Mark Salyzyn 0175b0747a logd: initial checkin.
* Create a new userspace log daemon for handling logging messages.

Original-Change-Id: I75267df16359684490121e6c31cca48614d79856
Signed-off-by: Nick Kralevich <nnk@google.com>

* Merge conflicts
* rename new syslog daemon to logd to prevent confusion with bionic syslog
* replace racy getGroups call with KISS call to client->getGid()
* Timestamps are filed at logging source
* insert entries into list in timestamp order
* Added LogTimeEntry tail filtration handling
* Added region locking around LogWriter list
* separate threads for each writer
* /dev/socket/logd* permissions

Signed-off-by: Mark Salyzyn <salyzyn@google.com>

(cherry picked from commit 3e76e0a497)

Author: Nick Kralevich <nnk@google.com>
Change-Id: Ice88b1412d8f9daa7f9119b2b5aaf684a5e28098
2014-02-26 09:52:35 -08:00