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[Qemu-devel] [PATCH 3/3] COLO-compare: Add virtio-net packet compare sup
From: |
Zhang Chen |
Subject: |
[Qemu-devel] [PATCH 3/3] COLO-compare: Add virtio-net packet compare support |
Date: |
Thu, 16 Mar 2017 17:52:08 +0800 |
If packet is virtio-net packet we will skip the virtio-net header
compare packet's payload.
Signed-off-by: Zhang Chen <address@hidden>
---
net/colo-compare.c | 31 ++++++++++++++++++++++++++-----
1 file changed, 26 insertions(+), 5 deletions(-)
diff --git a/net/colo-compare.c b/net/colo-compare.c
index ce0cd12..34af11a 100644
--- a/net/colo-compare.c
+++ b/net/colo-compare.c
@@ -237,7 +237,12 @@ static int colo_packet_compare_tcp(Packet *spkt, Packet
*ppkt)
}
if (ptcp->th_sum == stcp->th_sum) {
- res = colo_packet_compare_common(ppkt, spkt, ETH_HLEN);
+ if (ppkt->is_virtio_net_pkt) {
+ res = colo_packet_compare_common(ppkt, spkt, ETH_HLEN
+ + VIRTIO_NET_HEADER);
+ } else {
+ res = colo_packet_compare_common(ppkt, spkt, ETH_HLEN);
+ }
} else {
res = -1;
}
@@ -285,8 +290,14 @@ static int colo_packet_compare_udp(Packet *spkt, Packet
*ppkt)
* other field like TOS,TTL,IP Checksum. we only need to compare
* the ip payload here.
*/
- ret = colo_packet_compare_common(ppkt, spkt,
- network_header_length + ETH_HLEN);
+ if (ppkt->is_virtio_net_pkt) {
+ ret = colo_packet_compare_common(ppkt, spkt,
+ network_header_length
+ + VIRTIO_NET_HEADER + ETH_HLEN);
+ } else {
+ ret = colo_packet_compare_common(ppkt, spkt,
+ network_header_length + ETH_HLEN);
+ }
if (ret) {
trace_colo_compare_udp_miscompare("primary pkt size", ppkt->size);
@@ -309,6 +320,7 @@ static int colo_packet_compare_udp(Packet *spkt, Packet
*ppkt)
static int colo_packet_compare_icmp(Packet *spkt, Packet *ppkt)
{
int network_header_length = ppkt->ip->ip_hl * 4;
+ int ret;
trace_colo_compare_main("compare icmp");
@@ -322,8 +334,17 @@ static int colo_packet_compare_icmp(Packet *spkt, Packet
*ppkt)
* other field like TOS,TTL,IP Checksum. we only need to compare
* the ip payload here.
*/
- if (colo_packet_compare_common(ppkt, spkt,
- network_header_length + ETH_HLEN)) {
+
+ if (ppkt->is_virtio_net_pkt) {
+ ret = colo_packet_compare_common(ppkt, spkt,
+ network_header_length
+ + VIRTIO_NET_HEADER + ETH_HLEN);
+ } else {
+ ret = colo_packet_compare_common(ppkt, spkt,
+ network_header_length + ETH_HLEN);
+ }
+
+ if (ret) {
trace_colo_compare_icmp_miscompare("primary pkt size",
ppkt->size);
trace_colo_compare_icmp_miscompare("Secondary pkt size",
--
2.7.4
- [Qemu-devel] [PATCH 0/3] Add COLO-proxy virtio-net support, Zhang Chen, 2017/03/16
- [Qemu-devel] [PATCH 3/3] COLO-compare: Add virtio-net packet compare support,
Zhang Chen <=
- [Qemu-devel] [PATCH 2/3] COLO-proxy: Add a tag to mark virtio-net packet, Zhang Chen, 2017/03/16
- [Qemu-devel] [PATCH 1/3] COLO-proxy: Add virtio-net packet parse function, Zhang Chen, 2017/03/16
- Re: [Qemu-devel] [PATCH 0/3] Add COLO-proxy virtio-net support, Jason Wang, 2017/03/20
- Re: [Qemu-devel] [PATCH 0/3] Add COLO-proxy virtio-net support, Zhang Chen, 2017/03/21
- Re: [Qemu-devel] [PATCH 0/3] Add COLO-proxy virtio-net support, Jason Wang, 2017/03/21
- Re: [Qemu-devel] [PATCH 0/3] Add COLO-proxy virtio-net support, Zhang Chen, 2017/03/21
- Re: [Qemu-devel] [PATCH 0/3] Add COLO-proxy virtio-net support, Jason Wang, 2017/03/21
- Re: [Qemu-devel] [PATCH 0/3] Add COLO-proxy virtio-net support, Zhang Chen, 2017/03/21
- Re: [Qemu-devel] [PATCH 0/3] Add COLO-proxy virtio-net support, Jason Wang, 2017/03/21
- Re: [Qemu-devel] [PATCH 0/3] Add COLO-proxy virtio-net support, Zhang Chen, 2017/03/21