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efi_loader: correctly render MAC address device path nodes

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If the interface type is greater 1 render all 32 bytes of the MAC address.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
This commit is contained in:
Heinrich Schuchardt 2019-09-04 13:32:05 +02:00
parent 8254f8feb7
commit 4411652aea
1 changed files with 7 additions and 8 deletions
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15
lib/efi_loader/efi_device_path_to_text.c
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@ -124,17 +124,16 @@ static char *dp_msging(char *s, struct efi_device_path *dp)
break;
}
case DEVICE_PATH_SUB_TYPE_MSG_MAC_ADDR: {
int i, n = sizeof(struct efi_mac_addr);
struct efi_device_path_mac_addr *mdp =
(struct efi_device_path_mac_addr *)dp;
if (mdp->if_type != 0 && mdp->if_type != 1)
break;
s += sprintf(s, "MAC(%02x%02x%02x%02x%02x%02x,0x%1x)",
mdp->mac.addr[0], mdp->mac.addr[1],
mdp->mac.addr[2], mdp->mac.addr[3],
mdp->mac.addr[4], mdp->mac.addr[5],
mdp->if_type);
if (mdp->if_type <= 1)
n = 6;
s += sprintf(s, "MAC(");
for (i = 0; i < n; ++i)
s += sprintf(s, "%02x", mdp->mac.addr[i]);
s += sprintf(s, ",%u)", mdp->if_type);
break;
}