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05e3377d11
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4 Commits

Author SHA1 Message Date
Richard Hughes
05e3377d11 trivial: Add fu_common_bytes_new_offset() 
This is a safer version of g_bytes_new_from_bytes() which returns a GError
if the offsets are invalid rather than emitting a critical warning.

This prevents a critical warning and potential crash when parsing invalid
bcm57xx firmware.
 2020-12-08 20:54:25 +00:00
Richard Hughes
fa595a7334 libfwupdplugin: Do not overwrite GError when parsing invalid fmap 2020-12-08 20:32:21 +00:00
Benson Leung
23ca19acf8 fmap-firmware: Parse flashmap format into images 
Implements a search for the fmap, and follow the map to break the firmware
into the constituent images.

Tested using a servo_micro firmware:
$ fwupdtool firmware-parse servo_micro_v2.4.17-df61092c3.bin
<select fmap option>
FuFmapFirmware:
  FuFirmwareImage:
  ID:                    EC_RO
  Index:                 0x1
  Data:                  0xf000
  FuFirmwareImage:
  ID:                    FR_MAIN
  Index:                 0x2
  Data:                  0xf000
  FuFirmwareImage:
  ID:                    RO_FRID
  Index:                 0x3
  Address:               0xc4
  Data:                  0x20
  FuFirmwareImage:
  ID:                    FMAP
  Index:                 0x4
  Address:               0x9a40
  Version:               1.0
  Data:                  0x15e
  FuFirmwareImage:
  ID:                    WP_RO
  Index:                 0x5
  Data:                  0x10000
  FuFirmwareImage:
  ID:                    EC_RW
  Index:                 0x6
  Address:               0x10000
  Data:                  0x10000
  FuFirmwareImage:
  ID:                    RW_FWID
  Index:                 0x7
  Address:               0x100c4
  Data:                  0x20
 2020-06-20 07:24:32 +01:00
Benson Leung
acba98bd50 fmap-firmware: Add initial skeleton for fmap 
fmap is a Google flash layout format that is used in several of Google's
firmware projects, including Chrome OS Embedded Controller and the Chrome OS
coreboot firmwares. Introduce it as a firmware format in libfwupdplugin.
 2020-06-20 07:24:32 +01:00