diff options
| author | Sean Anderson <[email protected]> | 2022-12-16 13:20:16 -0500 |
|---|---|---|
| committer | Tom Rini <[email protected]> | 2023-01-11 15:02:24 -0500 |
| commit | f3d914cfdd5ac611d99f04096497f4cd13dd6aaa (patch) | |
| tree | 4b626251459d59173cf0a36798cd7d8b1086fae5 /drivers | |
| parent | d03799004640abfeb656e9db48d6f9b9e24383fb (diff) | |
fastboot: Add OEM run command
This adds the UUU UCmd functionality as an OEM command. While the
fastboot tool allows sending arbitrary commands as long as they are
prefixed with "oem". This allows running generic U-Boot commands over
fastboot without UUU, which is especially useful when not using USB.
This is really the route we should have gone in the first place when
adding these commands.
While we're here, clean up the UUU Kconfig a bit.
Signed-off-by: Sean Anderson <[email protected]>
Reviewed-by: Heiko Schocher <[email protected]>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/fastboot/Kconfig | 19 | ||||
| -rw-r--r-- | drivers/fastboot/fb_command.c | 4 |
2 files changed, 18 insertions, 5 deletions
diff --git a/drivers/fastboot/Kconfig b/drivers/fastboot/Kconfig index b97c67bf609..eefa34779c4 100644 --- a/drivers/fastboot/Kconfig +++ b/drivers/fastboot/Kconfig @@ -80,12 +80,13 @@ config FASTBOOT_FLASH this to enable the "fastboot flash" command. config FASTBOOT_UUU_SUPPORT - bool "Enable FASTBOOT i.MX UUU special command" + bool "Enable UUU support" help - The fastboot protocol includes "UCmd" and "ACmd" command. - Be aware that you provide full access to any U-Boot command, - including working with memory and may open a huge backdoor, - when enabling this option. + This extends the fastboot protocol with the "UCmd" and "ACmd" + commands, which are used by NXP's "universal update utility" (UUU). + These commands allow running any shell command. Do not enable this + feature if you are using verified boot, as it will allow an attacker + to bypass any restrictions you have in place. choice prompt "Flash provider for FASTBOOT" @@ -218,6 +219,14 @@ config FASTBOOT_CMD_OEM_BOOTBUS Add support for the "oem bootbus" command from a client. This set the mmc boot configuration for the selecting eMMC device. +config FASTBOOT_OEM_RUN + bool "Enable the 'oem run' command" + help + This extends the fastboot protocol with an "oem run" command. This + command allows running arbitrary U-Boot shell commands. Do not enable + this feature if you are using verified boot, as it will allow an + attacker to bypass any restrictions you have in place. + endif # FASTBOOT endmenu diff --git a/drivers/fastboot/fb_command.c b/drivers/fastboot/fb_command.c index f0fd605854d..67a94798287 100644 --- a/drivers/fastboot/fb_command.c +++ b/drivers/fastboot/fb_command.c @@ -102,6 +102,10 @@ static const struct { .command = "oem bootbus", .dispatch = CONFIG_IS_ENABLED(FASTBOOT_CMD_OEM_BOOTBUS, (oem_bootbus), (NULL)) }, + [FASTBOOT_COMMAND_OEM_RUN] = { + .command = "oem run", + .dispatch = CONFIG_IS_ENABLED(FASTBOOT_OEM_RUN, (run_ucmd), (NULL)) + }, [FASTBOOT_COMMAND_UCMD] = { .command = "UCmd", .dispatch = CONFIG_IS_ENABLED(FASTBOOT_UUU_SUPPORT, (run_ucmd), (NULL)) |