#define DEFAULT_NONCE_LEN 20
-/**
- * Convert string to u_int8_t
- * code taken from http://www.codeguru.com/forum/showthread.php?t=316299
- */
-static u_int8_t* string_to_bytearray(char *str_value)
-{
- u_int32_t i;
- u_int8_t *ret;
-
- ret = malloc(strlen(str_value)/2);
- for (i = 0; i < strlen(str_value)/2; i++)
- {
- char c1, c2;
- u_int8_t d1 = 0, d2 = 0;
-
- c1 = str_value[i*2];
- c2 = str_value[i*2 + 1];
-
- if (isdigit(c1))
- {
- d1 = c1 - '0';
- }
- else if (c1 >= 'A' && c1 <= 'F')
- {
- d1 = c1 - 'A' + 10;
- }
- else if (c1 >= 'a' && c1 <= 'f')
- {
- d1 = c1 - 'a' + 10;
- }
-
- if (isdigit(c2))
- {
- d2 = c2 - '0';
- }
- else if (c2 >= 'A' && c2 <= 'F')
- {
- d2 = c2 - 'A' + 10;
- }
- else if (c2 >= 'a' && c2 <= 'f')
- {
- d2 = c2 - 'a' + 10;
- }
- /* save value of two characters in one byte */
- ret[i] = d1*16 + d2;
- }
-
- return ret;
-}
-
/**
* Set parameters of Simple Component Evidence
*/
if (params.name == PTS_ITA_FUNC_COMP_NAME_TBOOT_POLICY ||
params.name == PTS_ITA_FUNC_COMP_NAME_TBOOT_MLE)
{
- char *measurement_str, *pcr_before_str, *pcr_after_str;
- u_int8_t *measurement, *pcr_before, *pcr_after;
+ char *measurement, *pcr_before, *pcr_after;
if (params.name == PTS_ITA_FUNC_COMP_NAME_TBOOT_POLICY)
{
params.extended_pcr = PCR_TBOOT_POLICY;
- measurement_str = lib->settings->get_str(lib->settings,
+ measurement = lib->settings->get_str(lib->settings,
"libimcv.plugins.imc-attestation.pcr17_meas", NULL);
- pcr_before_str = lib->settings->get_str(lib->settings,
+ pcr_before = lib->settings->get_str(lib->settings,
"libimcv.plugins.imc-attestation.pcr17_before", NULL);
- pcr_after_str = lib->settings->get_str(lib->settings,
+ pcr_after = lib->settings->get_str(lib->settings,
"libimcv.plugins.imc-attestation.pcr17_after", NULL);
}
else
{
params.extended_pcr = PCR_TBOOT_MLE;
- measurement_str = lib->settings->get_str(lib->settings,
+ measurement = lib->settings->get_str(lib->settings,
"libimcv.plugins.imc-attestation.pcr18_meas", NULL);
- pcr_before_str = lib->settings->get_str(lib->settings,
+ pcr_before = lib->settings->get_str(lib->settings,
"libimcv.plugins.imc-attestation.pcr18_before", NULL);
- pcr_after_str = lib->settings->get_str(lib->settings,
+ pcr_after = lib->settings->get_str(lib->settings,
"libimcv.plugins.imc-attestation.pcr18_after", NULL);
}
- if (!measurement_str || !pcr_before_str || !pcr_after_str)
+ if (!measurement || !pcr_before || !pcr_after)
{
DBG1(DBG_IMC, "tboot: configure measurement, before and after value"
" for PCR%d", params.extended_pcr);
return FALSE;
}
- params.measurement = chunk_alloc(HASH_SIZE_SHA1);
- measurement = string_to_bytearray(measurement_str);
- memcpy(params.measurement.ptr, measurement, HASH_SIZE_SHA1);
- free(measurement);
-
- params.pcr_before = chunk_alloc(PCR_LEN);
- pcr_before = string_to_bytearray(pcr_before_str);
- memcpy(params.pcr_before.ptr, pcr_before, PCR_LEN);
- free(pcr_before);
-
- params.pcr_after = chunk_alloc(PCR_LEN);
- pcr_after = string_to_bytearray(pcr_after_str);
- memcpy(params.pcr_after.ptr, pcr_after, PCR_LEN);
- free(pcr_after);
+ params.measurement = chunk_from_hex(
+ chunk_create(measurement, strlen(measurement)), NULL);
+ params.pcr_before = chunk_from_hex(
+ chunk_create(pcr_before, strlen(pcr_before)), NULL);
+ params.pcr_after = chunk_from_hex(
+ chunk_create(pcr_after, strlen(pcr_after)), NULL);
+
}
else if (params.name == PTS_ITA_FUNC_COMP_NAME_TGRUB_MBR_STAGE1)
{