Commit Graph

172 Commits

Author SHA1 Message Date
David Anderson 03de645aac fastbootd: Fix transport ownership.
This change moves Transport ownership back out of FastBootDriver.
Callers of set_transport must ensure that the previous transport is
destroyed. In addition, deleting a transport now ensures that it is
closed.

Bug: 78793464
Test: fastboot, fuzzy_fastboot works
Change-Id: I8f9ed2f7d5b09fd0820b2677d087a027378f26db
2018-09-04 15:01:12 -07:00
Dan Willemsen 4d8929773b Merge "Convert fastboot to Soong" 2018-08-30 23:36:54 +00:00
Dan Willemsen ab971b5e7e Convert fastboot to Soong
Also fix adb's version number to match.

See build/soong/README.md for more information.

Test: cd system/core/fastboot; mma
Test: fastboot --version
Test: adb --version
Test: out/host/linux-x86/nativetest/fastboot_test/fastboot_test
Test: out/host/linux-x86/nativetest64/fastboot_test/fastboot_test
Change-Id: I65ea39af9183c602e84f3bc0e4a0d066a30fc464
2018-08-30 11:28:18 -07:00
David Anderson cf444f3633 fastboot: Use a single codepath for flashall and update.
This patch extracts the common logic out of the flashall and update
command implementations. There is now a FlashAllTool helper class, and
an ImageSource class for commands to specify how to find built images.

With these paths merged, the update command now supports logical
partitions.

Bug: 78793464
Test: flashall works with or without a super partition
      update works with or without a super partition

Change-Id: I63a8690bbc4da6ea98a07eb2c07166ddd993a7b7
2018-08-29 15:58:34 -07:00
David Anderson 0debda098f fastboot: Clean up the image array a bit.
This makes the following changes to the images array:
 * The "optional_if_no_partition" flag is removed, as it was a temporary
   workaround for super.img.
 * The "flashall" flag is removed.
 * The "needed_for_fastbootd" flag is now an ImageType enum.

Bug: N/A
Test: fastboot builds, flashall works
Change-Id: Id000ea20cf83639cec2c9ae94f28c799b34606f1
2018-08-28 15:17:48 -07:00
David Anderson 95d4093b49 fastboot: Flash boot partitions before rebooting to fastbootd.
Userspace fastboot is required when flashing logical partitions. If for
some reason userspace fastboot is broken, the user may be stuck with
bootloader fastboot. To address this scenario, we now flash "boot",
"vbmeta", "recovery", "dtbo", and "dts" before booting into userspace
fastboot, using whatever fastboot is currently active.

Bug: 78793464
Test: fastboot flashall with device in bootloader fastboot
Change-Id: I773707bbbe9235c560416c70976e32fd8e52a5a3
2018-08-28 12:54:01 -07:00
David Anderson 1d887434da fastboot: Automatically reboot to userspace fastboot.
In order to flash logical partitions, "flashall" must be run against
userspace fastboot. When the bootloader supports the "reboot-fastboot"
command, we now attempt to automatically reboot into userspace fastboot.

We do this by closing the transport, sleeping for one second, and then
polling for a new connection until one is available. FastBootDriver is
then assigned the new transport.

Bug: 78793464
Test: fastboot flashall on device with logical partitions, while booted
      into bootloader fastboot

Change-Id: I6949871b93ab5e352784cabe0963c6ecfc0af36d
2018-08-28 09:07:40 -07:00
Mark Salyzyn 8fb0fb86a7 fastboot: allow automatic detection of super location
Add "super" to the table of known images so that automatic file
resolution can occur.  Add a flag to indicate if the image should
be flashed with flashall and set it to false for the new "super"
image, all else true.

Test: 'fastboot flash super' works.
      'fastboot flashall' does not flash super
Bug: 78793464
Change-Id: I5b85536b1d4890264531af357aba84a061d6df44
2018-08-24 15:24:41 -07:00
Treehugger Robot 5d3edb1422 Merge changes from topic "fastbootd-flashall"
* changes:
  fastbootd: Support flashall with logical partitions.
  fastboot: Use _WIN32 instead of WIN32.
2018-08-23 18:55:42 +00:00
David Anderson 32e376f848 fastbootd: Support flashall with logical partitions.
Currently, fastboot flashall will try to flash every partition in the
image list. For devices with logical partitions, this will cause those
partitions to be flashed twice (once via super.img, and again for each
individual image). Additionally, super.img is needed to synchronize the
logical partition list, but it is only generated with "make dist",
making it inconvenient for most workflows.

This patch removes automatic flashing of super.img. Instead, devices
with a super partition must now generate a "super_empty.img"
describing the super geometry and logical partition layout. Before
flashing any other partitions, this image is used to ensure the device
has created all necessary logical partitions.

Additionally, before flashing (but after updating super), all logical
partitions that will be flashed are resized to 0. This ensures that
logical partitions will receive more optimal space allocation.

Finally, during flashing of individual images, logical partitions are
resized to the image size, since they do not have hardcoded sizes in the
build.

Bug: 78793464
Test: fastboot flashall can flash vendor, product, product_services
      without a make dist/super.img.

Change-Id: I18c2291e0d0cb10de729c5646b75ac84dde8c871
2018-08-23 10:43:46 -07:00
Dario Freni ab5583b585 s/product-services/product_services/g
Attempting to reduce the number of different spellings we have for
"product services" partition in the codebase.

Bug: 112431447
Test: m
Change-Id: I1a87d7e040a8b1f91f973ac7d90d6360b5b54f71
Merged-In: I1a87d7e040a8b1f91f973ac7d90d6360b5b54f71
2018-08-20 17:46:42 +00:00
David Anderson 0d4277d7b3 fastbootd: Add commands for logical partitions.
This patch adds the following new commands to fastbootd:

    getvar is_logical:<partition>
    create-logical-logical-partition <partition> <size>
    delete-logical-partition <partition>
    resize-logicallogical-partition <partition> <size>

All of these commands operate on logical partitions only, and require a
properly configured "super" partition to operate.

Bug: 78793464
Test: fastboot create-logical-partition example 4096
      fastboot create-logical-partition example 4096 returns error
      fastboot getvar is-logical:example returns "yes"
      fastboot getvar partition-size:example returns "1000"
      fastboot resize-logicalpartition example 8000
      fastboot getvar partition-size:example returns "2000"
      fastboot delete-logical-partition example
      fastboot getvar is-logical:example returns error
      fastboot getvar is-logical:system_a returns "no"

Change-Id: Iff323eabcf5c559fa04c7c92574650b01803eb1f
2018-08-09 15:06:52 -07:00
David Anderson 8cdea7ff0c fastboot: Fix product-services typo
The build system generates a partition name of "product_services" for
the product-services partition, so fastboot's image list must reflect
this.

Bug: 78793464
Test: fastboot flash product_services works with fastbootd
Change-Id: I348f970c9584fd3dd4369e8cded66b6e39eee2b2
2018-08-07 09:29:11 -07:00
Treehugger Robot c4630ef445 Merge "Allow existance of partition to be checked before flashall or update" 2018-08-07 00:20:46 +00:00
Treehugger Robot c30a75a007 Merge "Add fastbootd." 2018-08-07 00:08:18 +00:00
Hridya Valsaraju f1f0a9c8a5 Allow existance of partition to be checked before flashall or update
Bug: 112108453
Test: fastboot flashall with super.img and product-services.img in $OUT,
fastboot update with super.img and product-services.img in image.zip.

Change-Id: I5718b5e60c546c55af74292895b3f7fe169e4f02
2018-08-06 11:05:37 -07:00
Hridya Valsaraju dea91b4b53 Add fastbootd.
Fastbootd is started by recovery, and communicates
over usb with the fastboot protocol.

Add additional fastboot commands to move in and out of
fastbootd. "fastboot reboot recovery" and "fastboot reboot fastboot"

Bug: 78793464
Test: fastboot reboot recovery, fastboot reboot fastboot
Change-Id: Iffb77b2d3ceefb7335c38aa9fba7bd17821484f0
2018-08-02 09:43:23 -07:00
Treehugger Robot 10601fd512 Merge "Flash super partition with fastboot flashall" 2018-08-01 20:47:53 +00:00
Hridya Valsaraju 94943ee331 Flash super partition with fastboot flashall
Bug: 111763923
Test: fastboot flashall
Change-Id: I9b89825bac00d1237972a61715da05f933ac35ce
2018-08-01 18:30:36 +00:00
Dario Freni c7ea1afe90 Add product-services.img for `fastboot flashall`.
This CL is largely and adaptation of
Ifd119650dd3316508870df0dfc770099e95ae1d1

Bug: 80741439
Test: Successfully built product-services.img with one module in it, and
flashed on device. Also successfully built image with
/system/product-services and no dedicated /product-services partition.

Change-Id: I204a831e052d018018ab124d70ad1ff1610ee007
2018-08-01 00:08:52 +01:00
Aaron Wisner db511207ed Refactor libfastboot
This change creates a nice and clean API for issuing
fastboot commands without using the fastboot tool itself.

Test: fastboot tool itself (now using libfastboot2)
on sailfish, walleye, and other devices.
Test: flash bootloader bootloader.img
Test: flash radio radio.img
Test: -w update img.zip
Test: Manually getvar and reboot commands.

Bug: 111126621
Change-Id: I0022536b204ce0c5ad8329367fd522fa3c57877d
2018-07-19 15:16:47 -05:00
Elliott Hughes 07fc6828a8 Clarify 'fastboot flash' help.
Bug: http://b/80206492
Test: `fastboot --help`
Change-Id: Idd4305628836eb0bcbcf3d217db0a9fc54a1d6d6
2018-05-24 18:30:58 -07:00
Elliott Hughes da1dbd6e6a fastboot: better temporary file errors.
Bug: http://b/80082652
Test: N/A
Change-Id: Ib9f34342157ea3a15fd48504d03f4f3a2c710579
2018-05-21 23:02:26 -07:00
Paul Crowley 4d17006b57 Wipe metadata when we wipe userdata and cache.
Bug: 78469699
Test: Run "fastboot -w" and see that metadata is wiped
Change-Id: I2d795281c48b59c87d4f8f010037d95186f55684
2018-04-25 10:51:05 -07:00
Tao Bao 41cf35f8b2 fastboot: sparse_file_len() returns int64_t.
Check that the value fits in uint32_t that's supported by the current
protocol.

Also fix and sanity check the max_size before passing it to
sparse_file_resparse(), which accepts `unsigned int`. This shouldn't
happen in practice because of RESPARSE_LIMIT (1 GiB).

Test: `fastboot flash` with small and large images.
Change-Id: I0a8279fc14c54c40a70ddce65c3b25173c0d0a40
2018-04-24 18:10:42 -07:00
Elliott Hughes 542370dead Move fastboot over to ParseByteCount.
Bug: N/A
Test: `fastboot flashall` and `fastboot -S 100m flashall`
Change-Id: I1f55c6e10be74780bbf8dc30b2d4be3f362ac662
2018-04-19 19:49:44 -07:00
Hridya Valsaraju d016ee4dbe Remove header version check for command "fastboot boot boot.img"
The header version argument is meant for creation of boot images
using boot and flash:raw commands. It is unnecessary to specify the same
while using the boot command with a complete boot image.

Bug: 77920157
Test: fastboot boot boot.img
Change-Id: Ia8fca4180e15906a3ae7c732496a744eb4b15e91
Merged-In: Ia8fca4180e15906a3ae7c732496a744eb4b15e91
2018-04-16 16:55:58 -07:00
Elliott Hughes bd86420b83 Remove unused variable.
Bug: N/A
Test: builds
Change-Id: I983f361d3d5a779600077a78b121c4ee399089db
2018-04-10 15:59:46 -07:00
Elliott Hughes f3192bd052 Remove -i vendor id matching.
We removed this from adb years ago.

Bug: N/A
Test: N/A
Change-Id: I899c8433665e64a0c0302d2c30a8e689b8c83d65
2018-04-10 15:38:08 -07:00
Elliott Hughes 42b18a518b Remove legacy slot-suffix support.
Bug: N/A
Test: flashed Pixel
Change-Id: Ic3cb9c8225c75697099723347f7fd820bcadca6e
2018-04-10 15:32:21 -07:00
Elliott Hughes 6ebec932d6 Add fastboot_test.cpp and test --os-version/--os-patch-level parsing.
Also switch all remaining headers over to #pragma once, and actually
use FB_COMMAND_SZ.

Bug: http://b/77340848
Test: ran tests
Change-Id: I27107d054c206e66c39208099e36a55df604e08f
2018-04-10 14:24:02 -07:00
Elliott Hughes 11ff345979 Minimal changes to build fastboot as a library.
Bug: http://b/77809061
Test: builds
Change-Id: I0c388334d643a0a2abf0c03a29f336dc3af2f83f
2018-04-09 20:40:45 -07:00
Elliott Hughes 577e8b44b6 Add fastboot --os-version and --os-patch-level.
Also move -c to --cmdline to match the python mkbootimg tool. Remove
the short options for these rarely-used options.

Remove #if 0 cruft from <bootimg/bootimg.h>.

Bug: http://b/77340848
Test: manual testing (need to fix http://b/77809061 for unit tests)
Change-Id: Ieaa795566611bd89ba3fee39a1d9f6ad0713a587
2018-04-09 18:37:39 +00:00
Elliott Hughes 59efd440eb Remove the "needs_erase" workaround.
This workaround shouldn't be necessary now we're using mke2fs.

Bug: http://b/25429933
Test: `fastboot -w flashall`
Change-Id: I577ad445a02a448102fb49674360a732aa3d153c
2018-04-05 14:24:00 -07:00
Elliott Hughes 2e9b779d42 Remove lock_bootloader/unlock_bootloader.
These were implemented on Nexus 5X/6P, but the infrastructure for the
challenge-response system isn't available.

Bug: N/A
Test: N/A
Change-Id: I50e27f469ea7c668de1af314f83f5171376ccda4
2018-04-04 13:36:44 -07:00
Elliott Hughes 2cb9075b63 Remove `reboot emergency`.
This isn't in the bootloader requirements doc, and the internet implies
that you actually need to use `fastboot oem edl` or `fastboot oem
reboot-edl` anyway.

Bug: N/A
Test: N/A
Change-Id: I0b7cd9839fbd06fc104d029e92d5986dc3c6eda3
2018-04-04 13:31:30 -07:00
Elliott Hughes b76188ffc1 Clean up fastboot help:
After:

  usage: fastboot [OPTION...] COMMAND...

  flashing:
   update ZIP                 Flash all partitions from an update.zip package.
   flashall                   Flash all partitions from $ANDROID_PRODUCT_OUT.
                              On A/B devices, flashed slot is set as active.
                              Secondary images may be flashed to inactive slot.
   flash PARTITION [FILENAME]
                              Flash given partition only.

  basics:
   devices [-l]               List devices in bootloader (-l: with device paths).
   getvar NAME                Display given bootloader variable.
   reboot [bootloader]        Reboot device.

  locking/unlocking:
   flashing lock|unlock       Lock/unlock partitions for flashing
   flashing lock_critical|unlock_critical
                              Lock/unlock 'critical' bootloader partitions.
   flashing get_unlock_ability
                              Check whether unlocking is allowed (1) or not(0).

  advanced:
   erase PARTITION            Erase a flash partition.
   format[:FS_TYPE[:SIZE]] PARTITION
                              Format a flash partition.
   set_active SLOT            Set the active slot.
   oem [COMMAND...]           Execute OEM-specific command.

  boot image:
   boot KERNEL [RAMDISK [SECOND]]
                              Download and boot kernel from RAM.
   flash:raw PARTITION KERNEL [RAMDISK [SECOND]]
                              Create boot image and flash it.
   -c CMDLINE                 Override kernel command line.
   --base ADDRESS             Set kernel base address (default: 0x10000000).
   --kernel-offset            Set kernel offset (default: 0x00008000).
   --ramdisk-offset           Set ramdisk offset (default: 0x01000000).
   --tags-offset              Set tags offset (default: 0x00000100).
   --page-size BYTES          Set flash page size (default: 2048).
   --header-version VERSION   Set boot image header version.

  Android Things:
   stage IN_FILE              Sends given file to stage for the next command.
   get_staged OUT_FILE        Writes data staged by the last command to a file.

  options:
   -w                         Wipe userdata.
   -u                         Do not erase partition first when formatting.
   -s SERIAL                  Specify a USB device.
   -s tcp|udp:HOST[:PORT]     Specify a network device.
   -i VENDOR_ID               Filter devices by USB vendor id.
   -S SIZE[K|M|G]             Use sparse files above this limit (0 to disable).
   --slot SLOT                Use SLOT; 'all' for both slots, 'other' for
                              non-current slot (default: current active slot).
   --set-active[=SLOT]        Sets the active slot before rebooting.
   --skip-secondary           Don't flash secondary slots in flashall/update.
   --skip-reboot              Don't reboot device after flashing.
   --disable-verity           Sets disable-verity when flashing vbmeta.
   --disable-verification     Sets disable-verification when flashing vbmeta.
   --wipe-and-use-fbe         Enable file-based encryption, wiping userdata.
   --unbuffered               Don't buffer input or output.
   --verbose, -v              Verbose output.
   --version                  Display version.
   --help, -h                 Show this message.

Bug: N/A
Test: `fastboot --help`

Change-Id: I3639fdee68de544f12e75004ccbb03b8386e64ed
2018-04-03 13:30:18 -07:00
Treehugger Robot a10d40e2b2 Merge "Add a header-version argument to fastboot" 2018-04-03 18:33:57 +00:00
Hridya Valsaraju 7d824136ae Add a header-version argument to fastboot
The argument would set the boot header
version for flash:raw and boot
commands when they are used for boot
image creation.

Bug: 77154616
Test: Dumped the created boot image and checked
the header version using unpack_bootimg

Change-Id: I2c458996817615f4351db102b4234984108d47c0
Merged-In: I2c458996817615f4351db102b4234984108d47c0
(cherry picked from commit 88de5556ec)
2018-04-02 16:00:59 -07:00
Elliott Hughes 855cdf82f5 Improve fastboot verbose output.
Move some verbose messages so they're only output with -v.

Remove some misleading verbose messages altogether (such as "wiping
userdata...").

Properly log all the commands sent and responses received. Example:

  $ fastboot -v flashall
  ...
  Sending sparse 'system' 2/2 (443712 KB)
  fastboot: verbose: sending command "download:1b1500d0"
  fastboot: verbose: received DATA 1b1500d0
  fastboot: verbose: sending data (1024 bytes)
  fastboot: verbose: sending data (165596160 bytes)
  fastboot: verbose: sending data (1024 bytes)
  fastboot: verbose: sending data (267762688 bytes)
  fastboot: verbose: sending data (1024 bytes)
  fastboot: verbose: sending data (20978688 bytes)
  fastboot: verbose: sending data (1024 bytes)
  fastboot: verbose: sending data (7168 bytes)
  fastboot: verbose: sending data (1024 bytes)
  fastboot: verbose: sending data (3072 bytes)
  fastboot: verbose: sending data (1024 bytes)
  fastboot: verbose: sending data (3072 bytes)
  fastboot: verbose: sending data (1024 bytes)
  fastboot: verbose: sending data (3072 bytes)
  fastboot: verbose: sending data (208 bytes)
  fastboot: verbose: received OKAY
  OKAY [ 13.871s]
  Writing sparse 'system' 2/2
  fastboot: verbose: sending command "flash:system"
  fastboot: verbose: received OKAY
  OKAY [  3.228s]
  Rebooting
  fastboot: verbose: sending command "reboot"
  fastboot: verbose: received OKAY

  Finished. Total time: 36.939s

Bug: http://b/30953083
Bug: http://b/74444116
Test: `fastboot -v flashall`
Change-Id: I2cca198daa062fd1fb732218343263803b111e38
2018-04-02 14:28:18 -07:00
Elliott Hughes f238d8751b Modernize fastboot output format.
After:

  --------------------------------------------
  Bootloader Version...: 0.5
  Baseband Version.....: 0.5
  Serial Number........: serialv1.0
  --------------------------------------------
  Checking product                                   OKAY [  0.032s]
  Sending 'boot' (9962 KB)                           OKAY [  0.350s]
  Writing 'boot'                                     OKAY [  0.143s]
  Sending 'dts' (14 KB)                              OKAY [  0.068s]
  Writing 'dts'                                      OKAY [  0.048s]
  Sending sparse 'system' 1/2 (460796 KB)            OKAY [ 14.383s]
  Writing sparse 'system' 1/2                        OKAY [  4.138s]
  Sending sparse 'system' 2/2 (443712 KB)            OKAY [ 13.871s]
  Writing sparse 'system' 2/2                        OKAY [  3.246s]
  Rebooting
  Finished. Total time: 36.962s

For a failure:

  extracting android-info.txt (0 MB) to RAM...
  --------------------------------------------
  Bootloader Version...: 0.5
  Baseband Version.....: 0.5
  Serial Number........: serialv1.0
  --------------------------------------------
  Checking product                                   FAILED

  Device product is 'hikey960'.
  Update requires 'marlin' or 'sailfish'.

  fastboot: error: requirements not met!

This change also adds a -v/--verbose flag, but doesn't make much use of
it yet (http://b/30953083 will need it).

Bug: N/A
Test: manual
Change-Id: I7d19f5775859ffad5f3be5707b37dcb6e180917f
2018-04-02 11:01:48 -07:00
Elliott Hughes 539f3ddff5 Merge "Add "require partition-exists=" support." 2018-03-28 23:25:24 +00:00
Elliott Hughes 5620d224b6 Add "require partition-exists=" support.
The Pixel 2 system images release was a bit of a disaster because anyone
using an old version of fastboot would blindly flash too few partitions,
potentially bricking their device. This change lets us add a line to
the android-info.txt file for a device with a new partition.

Also error out sooner in such cases by checking the requirements
immediately, rather than optimistically unpacking everything first.

Switch Action over to C++ to fix memory issues.

Bug: http://b/77158188 (partition checking)
Bug: http://b/74444116 (error out sooner)
Test: manual testing with a modified android-info.txt
Change-Id: I58b426cad410107e368f35f5725216d07281dd97
2018-03-28 12:43:53 -07:00
Bowgo Tsai 017217ec57 Adding odm.img for `fastboot flashall`
Bug: 64195575
Test: fastboot flashall
Change-Id: Ie6c20a1004867e7c9cfa1894abab9252316a9154
2018-03-29 01:31:51 +08:00
Bowgo Tsai 0afc6b07f1 Adding product.img for `fastboot flashall`
Bug: 64195575
Test: fastboot flashall
Change-Id: Ifd119650dd3316508870df0dfc770099e95ae1d1
2018-03-26 15:47:59 +08:00
Elliott Hughes aaa3b6bbf2 Fix fastboot memory corruption.
Bug: http://b/68664649
Test: echo 'ANDROID!' > fake.img ; fastboot -c `python -c "print 'A'*4000"` boot fake.img
Change-Id: I3299e0fba24a6c1f6178c994731a94cea68f7254
2018-01-18 16:50:14 -08:00
Elliott Hughes 23af112314 fastboot: show how long extraction takes.
Before:
  extracting android-info.txt (0 MB)...
  extracting boot.img (29 MB)...
  target reported max download size of 536870912 bytes
  archive does not contain 'boot.sig'
  archive does not contain 'boot_other.img'
  archive does not contain 'dtbo.img'
  archive does not contain 'dt.img'
  archive does not contain 'recovery.img'
  extracting system.img (1928 MB)...
  archive does not contain 'system.sig'
  extracting system_other.img (574 MB)...
  archive does not contain 'system.sig'
  archive does not contain 'vbmeta.img'

After:
  extracting android-info.txt (0 MB) to RAM...
  extracting boot.img (29 MB) to disk... took 0.232s
  target reported max download size of 536870912 bytes
  archive does not contain 'boot.sig'
  archive does not contain 'boot_other.img'
  archive does not contain 'dtbo.img'
  archive does not contain 'dt.img'
  archive does not contain 'recovery.img'
  extracting system.img (1928 MB) to disk... took 10.122s
  archive does not contain 'system.sig'
  extracting system_other.img (574 MB) to disk... took 3.424s
  archive does not contain 'system.sig'
  archive does not contain 'vbmeta.img'

Bug: http://b/69128980
Test: ran manually
Change-Id: Ib190d1cc56ad9da06a4f9a9e822f7dad4a9a53b7
2017-11-10 08:43:16 -08:00
Connor O'Brien ebcfa44937 Merge "fastboot: handle small flash block sizes correctly" 2017-11-03 21:15:34 +00:00
Tao Bao 67212f9083 fastboot: Don't give parsing error for unsupported 'getvar erase-block-size'.
Couldn't parse erase-block-size '0x'.
Couldn't parse logical-block-size '0x'.
mke2fs 1.43.3 (04-Sep-2016)
...

Some bootloaders explicitly return error on failed query (e.g. walleye),
while others return empty message (e.g. bullhead). We should just return
zero for empty message, instead of giving a misleading parsing error.

Test: `fastboot format userdata` on bullhead, with no parsing error.
Test: `fastboot format userdata` on walleye still works.
Change-Id: I194d41d24679929eccc65bfe895d6ab2a26315b7
2017-11-02 15:53:12 -07:00
Connor O'Brien 6ef5c24b84 fastboot: handle small flash block sizes correctly
Erase block sizes smaller than the ext4 block size may be valid, but
can incorrectly result in a stripe width smaller than the stride
size. Instead of reporting these sizes as invalid, add a check to
enforce that raid_stripe_width >= raid_stride.

Bug: 68770797
Test: Hack fb_getvar to report small erase block size, run fastboot
-w and confirm it does not print a warning or set stripe_width smaller
than stride.
Signed-off-by: Connor O'Brien <connoro@google.com>

Change-Id: I689ce4bdd5b38bd0952bb6de54785cca39176010
2017-11-02 12:51:46 -07:00