[PATCH 1/5] Show debug message whenever we observe a new guest MAC address

Signed-off-by: Volker Diels-Grabsch --- tap.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/tap.c b/tap.c index 7ba6399..cf862ef 100644 --- a/tap.c +++ b/tap.c @@ -1096,7 +1096,11 @@ void tap_add_packet(struct ctx *c, struct iov_tail *data, return; if (memcmp(c->guest_mac, eh->h_source, ETH_ALEN)) { + char bufmac[ETH_ADDRSTRLEN]; + memcpy(c->guest_mac, eh->h_source, ETH_ALEN); + debug("New guest MAC address observed: %s", + eth_ntop(c->guest_mac, bufmac, sizeof(bufmac))); proto_update_l2_buf(c->guest_mac, NULL); } -- 2.47.3