Passing in MS_REMOUNT | MS_BIND tells the kernel to only remove the
MS_RDONLY flag and keep all the other flags the same. This is also the
only kind of remount that is allowed in Linux containers (to be more
precise, within user namespaces).
This change also attempts to always run the remount command when dealing
with /, since containers will almost always run a loop device, and since
the number of the device changes, it is not convenient to put it in the
fstab. Plus, the container won't have permission to modify it, but might
be able to perform the remount.
Bug: 72178046
Test: `adb remount` works in both sailfish and Chrome OS
Change-Id: I9e8ec8afcd57f67875a312824667768b3aa89faa
The original default /fstab.{ro.hardware} might be moved to
/vendor/etc/. or /odm/etc/. Use the new API to get the default
fstab instead of using the hard-coded /fstab.{ro.hardware}.
Bug: 35811655
Test: boot marlin with /vendor/etc/fstab.marlin, then run 'adb remount'
Change-Id: I927209ce3c5bea45c01ed631a7c4c320fe728c00
On exit, these destructors get invoked while other threads might
still be using them, potentially causing a crash, and definitely
causing tsan to report a race condition.
Bug: http://b/23384853
Change-Id: I94de55d22f97f4edd1d7cc1f34e8c1f8dfd56a5a
Document the differences between adb_*() and unix_*() in the function
prototypes in sysdeps.h. See the file for the details (CR/LF
translation, well-known file descriptors, etc.).
Fix adb_read(), adb_write(), and adb_close() calls that should really be
unix_read(), unix_write(), and unix_close(). Note that this should have
no impact on unix because on unix, unix_read/unix_write/unix_close are
macros that map to adb_read/adb_write/adb_close.
Improve sysdeps_win32.cpp file descriptor diagnostic logging to output
the name of the function that was passed a bad file descriptor.
Change-Id: I0a1d9c28772656c80bcc303ef8b61fccf4cd637c
Signed-off-by: Spencer Low <CompareAndSwap@gmail.com>
Many devices don't have an /oem partition, so find_mount should be
expected to fail, but shouldn't cause the overall remount to fail.
Also clean up all the error handling and reporting, and remove the
dead int* globals.
Bug: http://b/21024141
Change-Id: Ie31021b03c9cab8e972269d7d1ffe383cd30ee9e
On a device without an oem partition, we now have an /oem directory
anyway. This causes find_mount to fail, and that was returning nullptr
from a std::string-returning function. Boom!
Also clean up the bits of code I had to trace through between "adb remount"
on the host to the crash on the device as I debugged this.
The only other meaningful change is the error checking in
adb_connect_command --- adb_connect can also return -2.
Bug: http://b/20916855
Change-Id: I4c3b7858e13f3a3a8bbc7d30b3c0ee470bead587
This patch factors out a lot of the basic protocol code: sending OKAY,
sending FAIL, and sending a length-prefixed string.
ADB_TRACE has been non-optional for a long time, so let's just remove
the #ifs.
Also actually build the device tracker test tool (and remove its duplicate).
Bug: http://b/20666660
Change-Id: I6c7d59f18707bdc62ca69dea45547617f9f31fc6
Set the verity mode as the value for partition.%s.verified to make it
easier for userspace to determine in which mode dm-verity was started.
Change-Id: Icc635515f8a8ede941277aed196867351d8387cb
* sysdeps.h should always be included first.
* TRACE_TAG needs to be defined before anything is included.
* Some files were missing copyright headers.
* Save precious bytes on my SSD by removing useless whitespace.
Change-Id: I88980e6e00b5be1093806cf286740d9e4a033b94
This reverts commit 6084a0124f.
The original build breakage is fixed by (a) building the verity
code for eng builds as well as userdebug builds and (b) moving
the exported remount service functions into a new header file.
Change-Id: Ice0c4f97d4db38ab7eb333c7a6e56bbd11123f5b
This is broken on userdebug builds, and it isn't completely clear why. The declaration for make_block-device_writable in adb.h wasn't updated to match the definition (which uses a std::string instead of a char*). adb.h is currently extern "C", and it isn't clear why this is only broken for userdebug, so I'd like to revert while we investigate.
This reverts commit 81416fdb18.
Change-Id: I47f321574f9f21052e2c7332e8b0f6ef9ab98277
I keep trying to clean things up and needing std::strings. Might as
well just do this now.
usb_linux_client.c is going to stay as C because GCC isn't smart
enough to deal with the designated initializers it uses (though for
some reason it is in C mode).
The Darwin files are staying as C because I don't have a way to test
that they build.
The Windows files are staying as C because while I can actually build
for them, it's slow and painful.
Change-Id: I75367d29205a9049d34460032b3bb36384f43941
