Hi Svyatoslav,

Thank you for your patch

On mer., nov. 15, 2023 at 17:38, Svyatoslav Ryhel <[email protected]> wrote:

> From: Ion Agorria <[email protected]>
>
> "oem console" serves to read console record buffer.
>
> Signed-off-by: Ion Agorria <[email protected]>
> Signed-off-by: Svyatoslav Ryhel <[email protected]>

Reviewed-by: Mattijs Korpershoek <[email protected]>

> ---
>  doc/android/fastboot.rst      |  1 +
>  drivers/fastboot/Kconfig      |  7 +++++++
>  drivers/fastboot/fb_command.c | 39 +++++++++++++++++++++++++++++++++++
>  include/fastboot.h            |  1 +
>  4 files changed, 48 insertions(+)
>
> diff --git a/doc/android/fastboot.rst b/doc/android/fastboot.rst
> index 1ad8a897c8..05d8f77759 100644
> --- a/doc/android/fastboot.rst
> +++ b/doc/android/fastboot.rst
> @@ -29,6 +29,7 @@ The following OEM commands are supported (if enabled):
>    with <arg> = boot_ack boot_partition
>  - ``oem bootbus``  - this executes ``mmc bootbus %x %s`` to configure eMMC
>  - ``oem run`` - this executes an arbitrary U-Boot command
> +- ``oem console`` - this dumps U-Boot console record buffer
>  
>  Support for both eMMC and NAND devices is included.
>  
> diff --git a/drivers/fastboot/Kconfig b/drivers/fastboot/Kconfig
> index 837c6f1180..58b08120a4 100644
> --- a/drivers/fastboot/Kconfig
> +++ b/drivers/fastboot/Kconfig
> @@ -241,6 +241,13 @@ config FASTBOOT_OEM_RUN
>         this feature if you are using verified boot, as it will allow an
>         attacker to bypass any restrictions you have in place.
>  
> +config FASTBOOT_CMD_OEM_CONSOLE
> +     bool "Enable the 'oem console' command"
> +     depends on CONSOLE_RECORD
> +     help
> +       Add support for the "oem console" command to input and read console
> +       record buffer.
> +
>  endif # FASTBOOT
>  
>  endmenu
> diff --git a/drivers/fastboot/fb_command.c b/drivers/fastboot/fb_command.c
> index 6f621df074..f95f4e4ae1 100644
> --- a/drivers/fastboot/fb_command.c
> +++ b/drivers/fastboot/fb_command.c
> @@ -41,6 +41,7 @@ static void reboot_recovery(char *, char *);
>  static void oem_format(char *, char *);
>  static void oem_partconf(char *, char *);
>  static void oem_bootbus(char *, char *);
> +static void oem_console(char *, char *);
>  static void run_ucmd(char *, char *);
>  static void run_acmd(char *, char *);
>  
> @@ -108,6 +109,10 @@ static const struct {
>               .command = "oem run",
>               .dispatch = CONFIG_IS_ENABLED(FASTBOOT_OEM_RUN, (run_ucmd), 
> (NULL))
>       },
> +     [FASTBOOT_COMMAND_OEM_CONSOLE] = {
> +             .command = "oem console",
> +             .dispatch = CONFIG_IS_ENABLED(FASTBOOT_CMD_OEM_CONSOLE, 
> (oem_console), (NULL))
> +     },
>       [FASTBOOT_COMMAND_UCMD] = {
>               .command = "UCmd",
>               .dispatch = CONFIG_IS_ENABLED(FASTBOOT_UUU_SUPPORT, (run_ucmd), 
> (NULL))
> @@ -159,6 +164,23 @@ void fastboot_multiresponse(int cmd, char *response)
>       case FASTBOOT_COMMAND_GETVAR:
>               fastboot_getvar_all(response);
>               break;
> +     case FASTBOOT_COMMAND_OEM_CONSOLE:
> +             if (CONFIG_IS_ENABLED(FASTBOOT_CMD_OEM_CONSOLE)) {
> +                     char buf[FASTBOOT_RESPONSE_LEN] = { 0 };
> +
> +                     if (console_record_isempty()) {
> +                             console_record_reset();
> +                             fastboot_okay(NULL, response);
> +                     } else {
> +                             int ret = console_record_readline(buf, 
> sizeof(buf) - 5);
> +
> +                             if (ret < 0)
> +                                     fastboot_fail("Error reading console", 
> response);
> +                             else
> +                                     fastboot_response("INFO", response, 
> "%s", buf);
> +                     }
> +                     break;
> +             }
>       default:
>               fastboot_fail("Unknown multiresponse command", response);
>               break;
> @@ -503,3 +525,20 @@ static void __maybe_unused oem_bootbus(char 
> *cmd_parameter, char *response)
>       else
>               fastboot_okay(NULL, response);
>  }
> +
> +/**
> + * oem_console() - Execute the OEM console command
> + *
> + * @cmd_parameter: Pointer to command parameter
> + * @response: Pointer to fastboot response buffer
> + */
> +static void __maybe_unused oem_console(char *cmd_parameter, char *response)
> +{
> +     if (cmd_parameter)
> +             console_in_puts(cmd_parameter);
> +
> +     if (console_record_isempty())
> +             fastboot_fail("Empty console", response);
> +     else
> +             fastboot_response(FASTBOOT_MULTIRESPONSE_START, response, NULL);
> +}
> diff --git a/include/fastboot.h b/include/fastboot.h
> index 59cbea61ec..1e7920eb91 100644
> --- a/include/fastboot.h
> +++ b/include/fastboot.h
> @@ -47,6 +47,7 @@ enum {
>       FASTBOOT_COMMAND_OEM_PARTCONF,
>       FASTBOOT_COMMAND_OEM_BOOTBUS,
>       FASTBOOT_COMMAND_OEM_RUN,
> +     FASTBOOT_COMMAND_OEM_CONSOLE,
>       FASTBOOT_COMMAND_ACMD,
>       FASTBOOT_COMMAND_UCMD,
>       FASTBOOT_COMMAND_COUNT
> -- 
> 2.40.1

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