qrap: Connect to the first available instance of passt, probe via ARP request

Signed-off-by: Stefano Brivio <sbrivio@redhat.com>

1 files changed, 14 insertions, 0 deletions

diff --git a/arp.h b/arp.h
index 70188b3..e9b5adf 100644
--- a/arp.h
+++ b/arp.h
@@ -1 +1,15 @@
+/**
+ * struct arpmsg - 802.2 ARP IPv4 payload
+ * @sha:	Sender hardware address
+ * @sip:	Sender IP address
+ * @tha:	Target hardware address
+ * @tip:	Target IP address
+ */
+struct arpmsg {
+	unsigned char sha[ETH_ALEN];
+	unsigned char sip[4];
+	unsigned char tha[ETH_ALEN];
+	unsigned char tip[4];
+} __attribute__((__packed__));
+
 int arp(struct ctx *c, struct ethhdr *eh, size_t len);