android_filesystem_capability.h should be included as part of
libcutils, not as a global include. It looks like the few users of
this file already do this correctly, so it's time to remove the
symlink.
Test: treehugger
Change-Id: I150dc5fee24bef3518b1f26728ef2bec669ee63a
canned_fs_config.h should be included as part of libcutils, not as a
global include. It looks like the few users of this file already do
this correctly, so it's time to remove the symlink.
Test: treehugger
Change-Id: I72d327c2f1f374a1fa9e22b5ee1cceb0311a6818
Document the internals of adb pipeline. In particular the fdevent,
smart socket, and transport flow.
Bug: NA
Test: NA
Change-Id: Ia8fd8a6da843b8e91ca3005545f33bd0a82cc0c3
Add basic support for daemon creation and handle signals
Test: Add test case to test system and product COW partitions
Bug: 162790322
Signed-off-by: Akilesh Kailash <akailash@google.com>
Change-Id: Icf8dbe49d2237cec6f7dbcdd84256eb6c5afa1cd
When in append mode, CowWriter will re-open the existing COW and resume
writing at the end of the old data position. All existing operations
will be reimported and buffered in memory.
The size calculation has been simplified to make this work. We now
advance ops_offset and no longer track the number of bytes written.
Additionally, a "header_size" field has been added to the header. This
was missing from the original format and is useful for introducing
forward compatibility later.
Finally, Finalize has been renamed to Flush. It's still mandatory, but
it can be called multiple times to continue appending data without
reopening.
Bug: 168554689
Test: cow_api_test gtest
Change-Id: I637e99ae08a4db5b273c06318e6db523ea8ec7c5
This makes looking up device UUIDs a bit easier, as rather than depending on
the device mapper's sysfs layout we can depend on dmctl. There's some
associated libdm plumbing, but the UUID was already pretty much availiable.
Test: I just ran this by hand.
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
Change-Id: I7028eec6ab04601308047b67057e51a0ff44c0a7
Currently it falls back to /sys/kernel/tracing if debugfs is not found.
/sys/kernel/tracing must be checked first since debugfs is not allowed
to be mounted in user builds starting with Android R launching devices.
Test: manual
Change-Id: I2fb5ec91bbf7d5304a1a6efcb06530969485e78f
"init subcontext" is responsible to handle a few commands in vendor
context. To support Vendor APEX, "init subcontext" is now started in
"default" mount namespace so that those commands can access /apex/*.
For example, insmod should see the contents of /apex to install kernel
modules in apexes.
Bug: 162701747
Test: adb shell ps -ef | grep init
=> check pid of <init subcontext>
adb shell readlink /proc/<pid: init>/ns/mnt
adb shell readlink /proc/<pid: init subcontext>/ns/mnt
=> check if these are equal
Change-Id: Icd5e862e52d78635e83824b267b6d32d8f3e9eea
Since Android R, the FUSE prop is always on and FUSE-off is no longer
supported
Test: m
Bug: 160159282
Change-Id: I6db20fe8cbf8d260ba21fed5da289eacd4e53ef5
dev.mnt. properties are primarily intended for tuning parameters for
mounts such as /system and /data but don't have much use for emulated
mounts.
There are additional emulated mounts created for each user on a
device, so if too many users are created, init would otherwise create
too many dev.mnt. properties, filling the property file that backs
these properties, and preventing more properties from being
generated.
Therefore, this change stops init from creating dev.mnt. properties
for emulated mounts.
Bug: 156721033
Test: user creation stress test doesn't create large numbers of
properties
Change-Id: I6475956719b7c938b8289189abfef661140d526d
Integrate Snapuserd daemon with libsnapshot library and handle
IO requests from dm-snap and dm-snap-persistent.
Tested all the 3 COW operations on a compressed
cow-device file generated through vab_converter_payload.
BUG: 163046732
Test: Added test case to independently test snapuserd IO path.
Manual test on compressed cow file generated and verifying
md5sum.
Signed-off-by: Akilesh Kailash <akailash@google.com>
Change-Id: I9d017ac671733a93c3bc21344228260224640c78
[Palmer: clean up some build issues]
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
