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Commit 2e672975 authored by Linux Build Service Account's avatar Linux Build Service Account Committed by Gerrit - the friendly Code Review server
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Merge "tpacket: Notify userspace about packets with CHECKSUM_UNNECESSARY"

parents 5d0652d9 0458aa0a

include/uapi/linux/if_packet.h

+1 −0
Original line number Diff line number Diff line
@@ -99,6 +99,7 @@ struct tpacket_auxdata { 
#define TP_STATUS_VLAN_VALID		(1 << 4) /* auxdata has valid tp_vlan_tci */

#define TP_STATUS_BLK_TMO		(1 << 5)

#define TP_STATUS_VLAN_TPID_VALID	(1 << 6) /* auxdata has valid tp_vlan_tpid */

#define TP_STATUS_CSUM_UNNECESSARY	(1 << 7)



/* Tx ring - header status */

#define TP_STATUS_AVAILABLE	      0

net/packet/af_packet.c

+3 −0
Original line number Diff line number Diff line
@@ -1888,6 +1888,9 @@ static int tpacket_rcv(struct sk_buff *skb, struct net_device *dev, 
	if (skb->ip_summed == CHECKSUM_PARTIAL)

		status |= TP_STATUS_CSUMNOTREADY;



	if (skb->ip_summed == CHECKSUM_UNNECESSARY)

		status |= TP_STATUS_CSUM_UNNECESSARY;



	snaplen = skb->len;



	res = run_filter(skb, sk, snaplen);