Commit graph

13 commits

Author SHA1 Message Date
Thiébaud Weksteen
87050874bd Document firmware_class.path
This kernel command-line parameter may be used to alter the loading of
firmware.

Bug: 222166126
Test: n/a
Change-Id: I6dc1ae92694cf08b11ab6c3c41aa3d62c992a72a
2022-03-03 13:00:20 +11:00
yuehu mi
ddffa0ea74 ueventd: the parallel restorecon dirs is configurable [1/1]
PD#SWPL-45884
BUG:187441275

Problem:
ueventd: coldboot took too much time

Solution:
1.The parallel restorecon dirs can be configured in ueventd.rc
2.Add 'parallel_restorecon_dir' keywords
parallel_restorecon_dir <directory>

Verify:
redi

Change-Id: Id5b13f18d36afb894891697f21ac63e78b3fe130
Signed-off-by: yuehu mi <yuehu.mi@amlogic.com>
2021-06-02 20:02:59 +08:00
Suchang Woo
10c6374e81 ueventd: Run external handler as non-root group
The external firmware handler always has root group privileges because
it is forked/executed without setgid() by ueventd which has root
privileges. This patch calls setgid() with group ID specified in
ueventd.rc before execv().

Test: atest CtsInitTestCases
Signed-off-by: Suchang Woo <suchang.woo@samsung.com>
Change-Id: Id1430e783b0e409d55ac80fe213e81ba099729e2
2021-05-17 10:37:19 +09:00
David Anderson
19872d0156 init: Add tests and document the new fnmatch behavior in ExternalFirmwareHandler.
Bug: N/A
Test: atest CtsInitTestCases
Change-Id: I232db8416318ba31ea3f78cc07f235d9a47efac4
2021-04-16 13:35:11 -07:00
David Anderson
bb159ad483 Relax the language around parallel_restorecon.
Bug: 179702321
Change-Id: I030c861d1e676bca63a25317a509fcd2438b664e
2021-02-08 22:30:39 -08:00
Tom Cherry
6cf3695502 Merge "ueventd: add no_fnm_pathname option" 2020-12-09 15:50:16 +00:00
Tom Cherry
5b271797de ueventd: add the import option from the init parser
Vendors have an interest in importing ueventd files based on certain
property values.  Instead of baking this logic in the ueventd binary,
add the import option from the init parser to the ueventd parser, to
allow vendors to expand as needed.

Test: imported files are parsed
Change-Id: I674987fd48f3218e4703528c6d905b1afb5fb366
2020-12-08 13:21:26 -08:00
Tom Cherry
47031c8c88 ueventd: add no_fnm_pathname option
If a `*` appears within (but not at the end) of a /dev or /sys path in
a ueventd.rc file, then that path is matched with fnmatch() using the
FNM_PATHNAME, which means `*` will not match `/`.  That is not always
the intended behavior and this change creates the no_fnm_pathname
option, which will not use the FNM_PATHNAME flag and will have `*`
match `/`.

Bug: 172880724
Test: these unit tests
Change-Id: I85b813d89237dbf3af47564e5cbf6806df5d412f
2020-12-07 14:58:19 -08:00
Jooyung Han
2833e5d37d ueventd: change firmware location in apexes
To be consistent with other prebuilt modules within APEXes, the location
for firmware files is switched from /apex/*/firmware to
/apex/*/etc/firmware.

Bug: 167942098
Test: loading vibrator firmware from vibrator apex(sunfish)
Change-Id: Ia05735bf5a54482fded26525fa4a8f795dcfc029
2020-09-21 10:56:10 +09:00
Jooyung Han
21cad321db ueventd: scans /apex/*/firmware for firmwares
In addition to "firmware_directories", ueventd scans /apex/*/firmware/
directory as well to find firmware files.

Bug: 167942098
Test: loading firmware from vibrator apex successfully.
      (sunfish)
Change-Id: I90fc8f9ad843a08b1ca98a2be1b5d22c0c5954a3
2020-09-19 08:07:35 +09:00
Tom Cherry
dcb3d15611 ueventd: allow using external firmware handlers
Userspace may want to load a different firmware than the one that the
kernel requests in some cases, therefore this change adds the ability
to ueventd to run an external handler that will determine the name of
the file that should actually be loaded.

Bug: 138352500
Test: unit tests
Change-Id: Ic5da37268fd78109f83ae52d1b903bf7322a5ee5
2019-09-12 12:57:22 -07:00
Tom Cherry
4233ec7f66 ueventd: make parallel restorecon functionality optional
5aa6197d5f added the ability to
parallelize restorecon to speed up boot for devices that have not
completely moved to genfscon.  This parallel restorecon happens after
the parallel ueventd handling.

This causes a performance regression for devices that have moved to
genfscon, since previously, the restorecon() was done in the main
ueventd thread in parallel with the uevent handlers.

I also tried to run the fully parallelized restorecon in parallel with
the uevent handlers, but that did not make any change to the cold boot
time, likely due to the additional overhead of parallelizing the work.

Bug: 140458170
Test: blueline coldboot time returns to pre-regression time.
Change-Id: I3cd6a869cc9b62792466813d94ad6c69834e854e
2019-09-09 09:02:48 -07:00
Tom Cherry
aefb141c67 Actually add README contents for ueventd
A long time coming

Test: n/a
Change-Id: I6050e74d7497d5a7760f615fe2ad7d5c78a66ab9
2019-08-12 13:13:57 -07:00