Go-based tools for modifying UEFI firmware.
For information about contributing, including how we sign off commits, please see CONTRIBUTING.md
Example usage:
# For a comprehensive list of commands
utk -h
# Display the image in a compact table form:
utk winterfell.rom table
# Summarize everything in JSON:
utk winterfell.rom json
# List information about a single file in JSON (using regex):
utk winterfell.rom find Shell
# Dump an EFI file to an ffs
utk winterfell.rom dump DxeCore dxecore.ffs
# Insert an EFI file into an FV near another Dxe
utk winterfell.rom insert_before Shell dxecore.ffs save inserted.rom
utk winterfell.rom insert_after Shell dxecore.ffs save inserted.rom
# Insert an EFI file into an FV at the front or the end
# "Shell" is just a means of specifying the FV that contains Shell
utk winterfell.rom insert_front Shell dxecore.ffs save inserted.rom
utk winterfell.rom insert_end Shell dxecore.ffs save inserted.rom
# Remove a file and pad the firmware volume to maintain offsets for the following files
utk winterfell.rom remove_pad Shell save removed.rom
# Remove two files by their GUID without padding and replace shell with Linux:
utk winterfell.rom \
remove 12345678-9abc-def0-1234-567890abcdef \
remove 23830293-3029-3823-0922-328328330939 \
replace_pe32 Shell linux.efi \
save winterfell2.rom
# Extract everything into a directory:
utk winterfell.rom extract winterfell/
# Re-assemble the directory into an image:
utk winterfell/ save winterfell2.rom
Delete unnecessary DXEs from your firmware. Free up space, speed up boot times and decrease the attack surface area! See the demo:
Example usage:
fmap checksum [md5|sha1|sha256] FILE
fmap extract i FILE
fmap jget JSONFILE FILE
fmap jput JSONFILE FILE
fmap summary FILE
fmap usage FILE
fmap verify FILE
# Golang version 1.13 is required:
go version
# For UTK:
go install github.com/linuxboot/fiano/cmds/utk@latest
# For fmap:
go install github.com/linuxboot/fiano/cmds/fmap@latest
The executables are installed in $HOME/go/bin
.
# Fiano utilizes Go modules.
Use the following to download the dependencies:
```
go mod download
go mod verify
```
If you desire to update a existing dependency to a newer version:
```
go get path/to/dependency/module@tag
```
Execute this in any directory of fiano repository