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lszcrypt: show AP bus msg size limit capability

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If there is a max_msg_size attribute for the card
the lszcrypt -c option will show this limit as
  AP bus max message size limit xx Kb

Signed-off-by: Harald Freudenberger <freude@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
This commit is contained in:
Harald Freudenberger
2022-02-08 17:32:28 +01:00
committed by Jan Höppner
parent bcbb6fcae6
commit 4382901daa
1 changed files with 17 additions and 12 deletions
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29
zconf/zcrypt/lszcrypt.c
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@@ -39,6 +39,7 @@ static struct lszcrypt_l {
#define CAP_CCA "CCA Secure Key"
#define CAP_RNG "Long RNG"
#define CAP_EP11 "EP11 Secure Key"
#define CAP_APMMS "AP bus max message size limit %ld Kb"
/*
* Card types
@@ -253,7 +254,7 @@ static void show_domains(void)
static void show_capability(const char *id_str)
{
unsigned long func_val;
long hwtype, id;
long hwtype, id, max_msg_size;
char *p, *ap, *dev, card[16], cbuf[256];
/* check if ap driver is available */
@@ -272,6 +273,9 @@ static void show_capability(const char *id_str)
/* If sysfs attribute is missing, set functions to 0 */
if (util_file_read_ul(&func_val, 16, "%s/ap_functions", dev))
func_val = 0x00000000;
/* try to read the ap bus max message size for this card */
if (util_file_read_l(&max_msg_size, 10, "%s/max_msg_size", dev))
max_msg_size = 0;
/* Skip devices, which are not supported by zcrypt layer */
if (!util_path_is_readable("%s/type", dev) ||
!util_path_is_readable("%s/online", dev)) {
@@ -289,9 +293,9 @@ static void show_capability(const char *id_str)
case 6:
case 8:
if (func_val & MASK_RSA4K)
printf("%s", CAP_RSA4K);
printf("%s\n", CAP_RSA4K);
else
printf("%s", CAP_RSA2K);
printf("%s\n", CAP_RSA2K);
break;
case 7:
case 9:
@@ -300,7 +304,7 @@ static void show_capability(const char *id_str)
printf("%s (%s)\n", CAP_CCA, cbuf);
else
printf("%s\n", CAP_CCA);
printf("%s", CAP_RNG);
printf("%s\n", CAP_RNG);
break;
case 10: /* CEX4S */
case 11: /* CEX5S */
@@ -309,29 +313,30 @@ static void show_capability(const char *id_str)
case 14: /* CEX8S */
if (func_val & MASK_ACCEL) {
if (func_val & MASK_RSA4K)
printf("%s", CAP_RSA4K);
printf("%s\n", CAP_RSA4K);
else
printf("%s", CAP_RSA2K);
printf("%s\n", CAP_RSA2K);
} else if (func_val & MASK_COPRO) {
printf("%s\n", CAP_RSA4K);
if (cbuf[0])
printf("%s (%s)\n", CAP_CCA, cbuf);
else
printf("%s\n", CAP_CCA);
printf("%s", CAP_RNG);
printf("%s\n", CAP_RNG);
} else if (func_val & MASK_EP11) {
printf("%s", CAP_EP11);
printf("%s\n", CAP_EP11);
} else {
printf("Detailed capability information for %s (hardware type %ld) is not available.",
printf("Detailed capability information for %s (hardware type %ld) is not available.\n",
card, hwtype);
}
if (max_msg_size > 0)
printf(CAP_APMMS "\n", max_msg_size / 1024);
break;
default:
printf("Detailed capability information for %s (hardware type %ld) is not available.",
card, hwtype);
printf("Detailed capability information for %s (hardware type %ld) is not available.\n",
card, hwtype);
break;
}
printf("\n");
}
/*