D42477.id129763.diff
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D42477.id129763.diff
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	diff --git a/sys/net/if_tuntap.c b/sys/net/if_tuntap.c
	--- a/sys/net/if_tuntap.c
	+++ b/sys/net/if_tuntap.c
	@@ -976,7 +976,8 @@
	ifp->if_ioctl = tunifioctl;
	ifp->if_flags = iflags;
	IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);
	- ifp->if_capabilities \|= IFCAP_LINKSTATE;
	+ ifp->if_capabilities \|=
	+ IFCAP_LINKSTATE \| IFCAP_RXCSUM \| IFCAP_RXCSUM_IPV6;
	ifp->if_capenable \|= IFCAP_LINKSTATE;

	if ((tp->tun_flags & TUN_L2) != 0) {
	@@ -1789,6 +1790,24 @@
	return (0);
	}

	+ switch (ntohs(eh->ether_type)) {
	+ case ETHERTYPE_IP:
	+ if (ifp->if_capenable & IFCAP_RXCSUM) {
	+ m->m_pkthdr.csum_flags \|=
	+ CSUM_IP_CHECKED \| CSUM_IP_VALID;
	+ m->m_pkthdr.csum_flags \|=
	+ CSUM_DATA_VALID \| CSUM_SCTP_VALID \| CSUM_PSEUDO_HDR;
	+ m->m_pkthdr.csum_data = 0xffff;
	+ }
	+ break;
	+ case ETHERTYPE_IPV6:
	+ if (ifp->if_capenable & IFCAP_RXCSUM_IPV6) {
	+ m->m_pkthdr.csum_flags \|=
	+ CSUM_DATA_VALID_IPV6 \| CSUM_SCTP_VALID \| CSUM_PSEUDO_HDR;
	+ m->m_pkthdr.csum_data = 0xffff;
	+ }
	+ break;
	+ }
	/* Pass packet up to parent. */
	CURVNET_SET(ifp->if_vnet);
	NET_EPOCH_ENTER(et);