ACK: [PATCH 3/3][Resend]: uefidump: add support for Key#### (LP:#1237263)

[Alex Hung]

On 10/14/2013 06:11 PM, Ivan Hu wrote:
> Add support for Key#### - The Key#### variable associates a key press
> with a single boot option. Each Key#### variable is the name "Key"
> appended with a unique four digit hexadecimal number. For example,
> Key0001, Key0002, Key00A0, etc.
>
> Signed-off-by: Ivan Hu <ivan.hu at canonical.com>
> ---
>   src/lib/include/fwts_uefi.h  |   11 ++++++
>   src/uefi/uefidump/uefidump.c |   80 ++++++++++++++++++++++++++++++++++++++++++
>   2 files changed, 91 insertions(+)
>
> diff --git a/src/lib/include/fwts_uefi.h b/src/lib/include/fwts_uefi.h
> index d38903e..512ca67 100644
> --- a/src/lib/include/fwts_uefi.h
> +++ b/src/lib/include/fwts_uefi.h
> @@ -115,6 +115,17 @@ typedef struct {
>           fwts_uefi_dev_path unused_file_path_list[1];
>   } __attribute__((packed)) fwts_uefi_load_option;
>
> +typedef struct {
> +        uint32_t keydata;
> +        uint32_t bootoptioncrc;
> +        uint16_t bootoption;
> +} __attribute__((packed)) fwts_uefi_key_option;
> +
> +typedef struct {
> +        uint16_t scancode;
> +        uint16_t unicodechar;
> +} __attribute__((packed)) fwts_uefi_input_key;
> +
>   typedef enum {
>   	FWTS_UEFI_HARDWARE_DEV_PATH_TYPE =		(0x01),
>   	FWTS_UEFI_ACPI_DEVICE_PATH_TYPE =		(0x02),
> diff --git a/src/uefi/uefidump/uefidump.c b/src/uefi/uefidump/uefidump.c
> index b414ca9..54d8be3 100644
> --- a/src/uefi/uefidump/uefidump.c
> +++ b/src/uefi/uefidump/uefidump.c
> @@ -777,6 +777,78 @@ static void uefidump_info_driverdev(fwts_framework *fw, fwts_uefi_var *var)
>   	}
>   }
>
> +static void uefidump_info_keyoption(fwts_framework *fw, fwts_uefi_var *var)
> +{
> +	fwts_uefi_key_option *key_option = (fwts_uefi_key_option *)var->data;
> +  	fwts_uefi_input_key *inputkey = (fwts_uefi_input_key *) (((uint8_t *) var->data) + sizeof (fwts_uefi_key_option));
> +	char str[300];
> +	size_t keyoptionsize, inputkeycount, index = 0;
> +
> +	*str = 0;
> +
> +	if (var->datalen < sizeof (fwts_uefi_key_option)) {
> +		uefidump_var_hexdump(fw, var);
> +		return;
> +	}
> +
> +	if (key_option->keydata & (1 << 8))
> +		strcat(str, "ShiftPressed");
> +
> +	if (key_option->keydata & (1 << 9)) {
> +		if (*str)
> +			strcat(str, ",");
> +		strcat(str, "ControlPressed");
> +	}
> +
> +	if (key_option->keydata & (1 << 10)) {
> +		if (*str)
> +			strcat(str, ",");
> +		strcat(str, "AltPressed");
> +	}
> +
> +	if (key_option->keydata &(1 << 11)) {
> +		if (*str)
> +			strcat(str, ",");
> +		strcat(str, "LogoPressed");
> +	}
> +
> +	if (key_option->keydata & (1 << 12)) {
> +		if (*str)
> +			strcat(str, ",");
> +		strcat(str, "MenuPressed");
> +	}
> +
> +	if (key_option->keydata & (1 << 13)) {
> +		if (*str)
> +			strcat(str, ",");
> +		strcat(str, "SysReqPressed");
> +	}
> +
> +	if (*str != 0)
> +		fwts_log_info_verbatum(fw, "  PackedValue: 0x%8.8" PRIx32 " (%s).", key_option->keydata, str);
> +	else
> +		fwts_log_info_verbatum(fw, "  PackedValue: 0x%8.8" PRIx32 ".", key_option->keydata);
> +
> +	fwts_log_info_verbatum(fw, "  BootOptionCrc: 0x%8.8" PRIx32 ".", key_option->bootoptioncrc);
> +	fwts_log_info_verbatum(fw, "  BootOption: %4.4" PRIx16 ".", key_option->bootoption);
> +
> +	inputkeycount = (key_option->keydata & 0xC0000000) >> 30;
> +	for (index = 0; index < inputkeycount; index++) {
> +		fwts_log_info_verbatum(fw, "  ScanCode: 0x%4.4" PRIx16 ".", inputkey[index].scancode);
> +		fwts_log_info_verbatum(fw, "  UnicodeChar: 0x%4.4" PRIx16 ".", inputkey[index].unicodechar);
> +	}
> +
> +	keyoptionsize = sizeof (fwts_uefi_key_option) + inputkeycount * sizeof (fwts_uefi_input_key);
> +
> +	/*
> +	 * there are extra data following the keyoption data structure which the firmware is using,
> +	 * dump all data for reference
> +	 */
> +	if (var->datalen > keyoptionsize) {
> +		uefidump_var_hexdump(fw, var);
> +	}
> +}
> +
>   static uefidump_info uefidump_info_table[] = {
>   	{ "PlatformLangCodes",	uefidump_info_platform_langcodes },
>   	{ "PlatformLang",	uefidump_info_platform_lang },
> @@ -844,6 +916,14 @@ static void uefidump_var(fwts_framework *fw, fwts_uefi_var *var)
>   		return;
>   	}
>
> +	/* Check the key option key####. #### is a printed hex value */
> +	if ((strlen(varname) == 7) && (strncmp(varname, "Key", 3) == 0)
> +			&& isxdigit(varname[3]) && isxdigit(varname[4])
> +			&& isxdigit(varname[5]) && isxdigit(varname[6])) {
> +		uefidump_info_keyoption(fw, var);
> +		return;
> +	}
> +
>   	/* otherwise just do a plain old hex dump */
>   	uefidump_var_hexdump(fw, var);
>   }
>

Acked-by: Alex Hung <alex.hung at canonical.com>