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Automated cherry pick of #6251: Fix that local traffic cannot be identified in #6269

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merged 1 commit into from
May 1, 2024
Merged

Automated cherry pick of #6251: Fix that local traffic cannot be identified in #6269

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30 changes: 15 additions & 15 deletions pkg/agent/openflow/client_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -685,7 +685,7 @@ func Test_client_InstallPodFlows(t *testing.T) {
podInterfaceIPs: []net.IP{podIPv4},
expectedFlows: []string{
"cookie=0x1010000000000, table=ARPSpoofGuard, priority=200,arp,in_port=100,arp_spa=10.10.0.66,arp_sha=00:00:10:10:00:66 actions=goto_table:ARPResponder",
"cookie=0x1010000000000, table=Classifier, priority=190,in_port=100 actions=set_field:0x3/0xf->reg0,goto_table:SpoofGuard",
"cookie=0x1010000000000, table=Classifier, priority=190,in_port=100 actions=set_field:0x3/0xf->reg0,set_field:0x10000000/0x10000000->reg4,goto_table:SpoofGuard",
"cookie=0x1010000000000, table=SpoofGuard, priority=200,ip,in_port=100,dl_src=00:00:10:10:00:66,nw_src=10.10.0.66 actions=goto_table:UnSNAT",
"cookie=0x1010000000000, table=L3Forwarding, priority=200,ip,reg0=0x200/0x200,nw_dst=10.10.0.66 actions=set_field:0a:00:00:00:00:01->eth_src,set_field:00:00:10:10:00:66->eth_dst,goto_table:L3DecTTL",
"cookie=0x1010000000000, table=L2ForwardingCalc, priority=200,dl_dst=00:00:10:10:00:66 actions=set_field:0x64->reg1,set_field:0x200000/0x600000->reg0,goto_table:IngressSecurityClassifier",
Expand All @@ -699,7 +699,7 @@ func Test_client_InstallPodFlows(t *testing.T) {
expectedFlows: []string{
"cookie=0x1010000000000, table=ARPSpoofGuard, priority=200,arp,in_port=100,arp_spa=10.10.0.66,arp_sha=00:00:10:10:00:66 actions=goto_table:ARPResponder",
"cookie=0x1010000000000, table=SpoofGuard, priority=200,ip,in_port=100,dl_src=00:00:10:10:00:66,nw_src=10.10.0.66 actions=goto_table:PipelineIPClassifier",
"cookie=0x1010000000000, table=Classifier, priority=190,in_port=100 actions=set_field:0x3/0xf->reg0,goto_table:SpoofGuard",
"cookie=0x1010000000000, table=Classifier, priority=190,in_port=100 actions=set_field:0x3/0xf->reg0,set_field:0x10000000/0x10000000->reg4,goto_table:SpoofGuard",
"cookie=0x1010000000000, table=L3Forwarding, priority=200,ip,reg0=0x200/0x200,nw_dst=10.10.0.66 actions=set_field:0a:00:00:00:00:01->eth_src,set_field:00:00:10:10:00:66->eth_dst,goto_table:L3DecTTL",
"cookie=0x1010000000000, table=L2ForwardingCalc, priority=200,dl_dst=00:00:10:10:00:66 actions=set_field:0x64->reg1,set_field:0x200000/0x600000->reg0,goto_table:IngressSecurityClassifier",
"cookie=0x1050000000000, table=MulticastEgressPodMetric, priority=200,ip,nw_src=10.10.0.66 actions=goto_table:MulticastRouting",
Expand All @@ -711,7 +711,7 @@ func Test_client_InstallPodFlows(t *testing.T) {
enableIPv6: true,
podInterfaceIPs: []net.IP{podIPv6},
expectedFlows: []string{
"cookie=0x1010000000000, table=Classifier, priority=190,in_port=100 actions=set_field:0x3/0xf->reg0,goto_table:SpoofGuard",
"cookie=0x1010000000000, table=Classifier, priority=190,in_port=100 actions=set_field:0x3/0xf->reg0,set_field:0x10000000/0x10000000->reg4,goto_table:SpoofGuard",
"cookie=0x1010000000000, table=SpoofGuard, priority=200,ipv6,in_port=100,dl_src=00:00:10:10:00:66,ipv6_src=fec0:10:10::66 actions=goto_table:IPv6",
"cookie=0x1010000000000, table=L3Forwarding, priority=200,ipv6,reg0=0x200/0x200,ipv6_dst=fec0:10:10::66 actions=set_field:0a:00:00:00:00:01->eth_src,set_field:00:00:10:10:00:66->eth_dst,goto_table:L3DecTTL",
"cookie=0x1010000000000, table=L2ForwardingCalc, priority=200,dl_dst=00:00:10:10:00:66 actions=set_field:0x64->reg1,set_field:0x200000/0x600000->reg0,goto_table:IngressSecurityClassifier",
Expand All @@ -724,7 +724,7 @@ func Test_client_InstallPodFlows(t *testing.T) {
podInterfaceIPs: []net.IP{podIPv4, podIPv6},
expectedFlows: []string{
"cookie=0x1010000000000, table=ARPSpoofGuard, priority=200,arp,in_port=100,arp_spa=10.10.0.66,arp_sha=00:00:10:10:00:66 actions=goto_table:ARPResponder",
"cookie=0x1010000000000, table=Classifier, priority=190,in_port=100 actions=set_field:0x3/0xf->reg0,goto_table:SpoofGuard",
"cookie=0x1010000000000, table=Classifier, priority=190,in_port=100 actions=set_field:0x3/0xf->reg0,set_field:0x10000000/0x10000000->reg4,goto_table:SpoofGuard",
"cookie=0x1010000000000, table=SpoofGuard, priority=200,ip,in_port=100,dl_src=00:00:10:10:00:66,nw_src=10.10.0.66 actions=goto_table:UnSNAT",
"cookie=0x1010000000000, table=SpoofGuard, priority=200,ipv6,in_port=100,dl_src=00:00:10:10:00:66,ipv6_src=fec0:10:10::66 actions=goto_table:IPv6",
"cookie=0x1010000000000, table=L3Forwarding, priority=200,ip,reg0=0x200/0x200,nw_dst=10.10.0.66 actions=set_field:0a:00:00:00:00:01->eth_src,set_field:00:00:10:10:00:66->eth_dst,goto_table:L3DecTTL",
Expand All @@ -739,7 +739,7 @@ func Test_client_InstallPodFlows(t *testing.T) {
trafficEncapMode: config.TrafficEncapModeNetworkPolicyOnly,
expectedFlows: []string{
"cookie=0x1010000000000, table=ARPSpoofGuard, priority=200,arp,in_port=100,arp_spa=10.10.0.66,arp_sha=00:00:10:10:00:66 actions=goto_table:ARPResponder",
"cookie=0x1010000000000, table=Classifier, priority=190,in_port=100 actions=set_field:0x3/0xf->reg0,goto_table:SpoofGuard",
"cookie=0x1010000000000, table=Classifier, priority=190,in_port=100 actions=set_field:0x3/0xf->reg0,set_field:0x10000000/0x10000000->reg4,goto_table:SpoofGuard",
"cookie=0x1010000000000, table=SpoofGuard, priority=200,ip,in_port=100,dl_src=00:00:10:10:00:66,nw_src=10.10.0.66 actions=goto_table:UnSNAT",
"cookie=0x1010000000000, table=L3Forwarding, priority=200,ip,reg0=0x200/0x200,nw_dst=10.10.0.66 actions=set_field:0a:00:00:00:00:01->eth_src,set_field:00:00:10:10:00:66->eth_dst,goto_table:L3DecTTL",
"cookie=0x1010000000000, table=L3Forwarding, priority=200,ip,nw_dst=10.10.0.66 actions=set_field:00:00:10:10:00:66->eth_dst,goto_table:L3DecTTL",
Expand All @@ -752,7 +752,7 @@ func Test_client_InstallPodFlows(t *testing.T) {
podInterfaceIPs: []net.IP{podIPv6},
trafficEncapMode: config.TrafficEncapModeNetworkPolicyOnly,
expectedFlows: []string{
"cookie=0x1010000000000, table=Classifier, priority=190,in_port=100 actions=set_field:0x3/0xf->reg0,goto_table:SpoofGuard",
"cookie=0x1010000000000, table=Classifier, priority=190,in_port=100 actions=set_field:0x3/0xf->reg0,set_field:0x10000000/0x10000000->reg4,goto_table:SpoofGuard",
"cookie=0x1010000000000, table=SpoofGuard, priority=200,ipv6,in_port=100,dl_src=00:00:10:10:00:66,ipv6_src=fec0:10:10::66 actions=goto_table:IPv6",
"cookie=0x1010000000000, table=L3Forwarding, priority=200,ipv6,reg0=0x200/0x200,ipv6_dst=fec0:10:10::66 actions=set_field:0a:00:00:00:00:01->eth_src,set_field:00:00:10:10:00:66->eth_dst,goto_table:L3DecTTL",
"cookie=0x1010000000000, table=L3Forwarding, priority=200,ipv6,ipv6_dst=fec0:10:10::66 actions=set_field:00:00:10:10:00:66->eth_dst,goto_table:L3DecTTL",
Expand All @@ -767,7 +767,7 @@ func Test_client_InstallPodFlows(t *testing.T) {
trafficEncapMode: config.TrafficEncapModeNetworkPolicyOnly,
expectedFlows: []string{
"cookie=0x1010000000000, table=ARPSpoofGuard, priority=200,arp,in_port=100,arp_spa=10.10.0.66,arp_sha=00:00:10:10:00:66 actions=goto_table:ARPResponder",
"cookie=0x1010000000000, table=Classifier, priority=190,in_port=100 actions=set_field:0x3/0xf->reg0,goto_table:SpoofGuard",
"cookie=0x1010000000000, table=Classifier, priority=190,in_port=100 actions=set_field:0x3/0xf->reg0,set_field:0x10000000/0x10000000->reg4,goto_table:SpoofGuard",
"cookie=0x1010000000000, table=SpoofGuard, priority=200,ipv6,in_port=100,dl_src=00:00:10:10:00:66,ipv6_src=fec0:10:10::66 actions=goto_table:IPv6",
"cookie=0x1010000000000, table=SpoofGuard, priority=200,ip,in_port=100,dl_src=00:00:10:10:00:66,nw_src=10.10.0.66 actions=goto_table:UnSNAT",
"cookie=0x1010000000000, table=L3Forwarding, priority=200,ipv6,reg0=0x200/0x200,ipv6_dst=fec0:10:10::66 actions=set_field:0a:00:00:00:00:01->eth_src,set_field:00:00:10:10:00:66->eth_dst,goto_table:L3DecTTL",
Expand All @@ -787,7 +787,7 @@ func Test_client_InstallPodFlows(t *testing.T) {
"cookie=0x1010000000000, table=ARPSpoofGuard, priority=200,arp,in_port=100,arp_spa=192.168.77.200,arp_sha=00:00:10:10:00:66 actions=goto_table:ARPResponder",
"cookie=0x1010000000000, table=Classifier, priority=210,ip,in_port=4,vlan_tci=0x0000/0x1000,dl_dst=00:00:10:10:00:66 actions=set_field:0x1000/0xf000->reg8,set_field:0x4/0xf->reg0,set_field:0x0/0xfff->reg8,goto_table:UnSNAT",
"cookie=0x1010000000000, table=Classifier, priority=210,ip,in_port=4294967294,vlan_tci=0x0000/0x1000,dl_dst=00:00:10:10:00:66 actions=set_field:0x1000/0xf000->reg8,set_field:0x5/0xf->reg0,goto_table:UnSNAT",
"cookie=0x1010000000000, table=Classifier, priority=190,in_port=100 actions=set_field:0x3/0xf->reg0,set_field:0x100000/0x100000->reg4,set_field:0x200/0x200->reg0,goto_table:SpoofGuard",
"cookie=0x1010000000000, table=Classifier, priority=190,in_port=100 actions=set_field:0x3/0xf->reg0,set_field:0x10000000/0x10000000->reg4,set_field:0x100000/0x100000->reg4,set_field:0x200/0x200->reg0,goto_table:SpoofGuard",
"cookie=0x1010000000000, table=SpoofGuard, priority=200,ip,in_port=100,dl_src=00:00:10:10:00:66,nw_src=192.168.77.200 actions=set_field:0x1000/0xf000->reg8,set_field:0x0/0xfff->reg8,goto_table:UnSNAT",
"cookie=0x1010000000000, table=L3Forwarding, priority=200,ip,reg8=0x0/0xfff,nw_dst=192.168.77.200 actions=set_field:00:00:10:10:00:66->eth_dst,goto_table:L3DecTTL",
"cookie=0x1010000000000, table=L2ForwardingCalc, priority=200,dl_dst=00:00:10:10:00:66 actions=set_field:0x64->reg1,set_field:0x200000/0x600000->reg0,goto_table:IngressSecurityClassifier",
Expand All @@ -803,7 +803,7 @@ func Test_client_InstallPodFlows(t *testing.T) {
expectedFlows: []string{
"cookie=0x1010000000000, table=ARPSpoofGuard, priority=200,arp,in_port=100,arp_spa=192.168.77.200,arp_sha=00:00:10:10:00:66 actions=goto_table:ARPResponder",
"cookie=0x1010000000000, table=Classifier, priority=210,ip,in_port=4,dl_vlan=1,dl_dst=00:00:10:10:00:66 actions=set_field:0x1000/0xf000->reg8,set_field:0x4/0xf->reg0,set_field:0x1/0xfff->reg8,goto_table:UnSNAT",
"cookie=0x1010000000000, table=Classifier, priority=190,in_port=100 actions=set_field:0x3/0xf->reg0,set_field:0x100000/0x100000->reg4,set_field:0x200/0x200->reg0,goto_table:SpoofGuard",
"cookie=0x1010000000000, table=Classifier, priority=190,in_port=100 actions=set_field:0x3/0xf->reg0,set_field:0x10000000/0x10000000->reg4,set_field:0x100000/0x100000->reg4,set_field:0x200/0x200->reg0,goto_table:SpoofGuard",
"cookie=0x1010000000000, table=SpoofGuard, priority=200,ip,in_port=100,dl_src=00:00:10:10:00:66,nw_src=192.168.77.200 actions=set_field:0x1000/0xf000->reg8,set_field:0x1/0xfff->reg8,goto_table:UnSNAT",
"cookie=0x1010000000000, table=L3Forwarding, priority=200,ip,reg8=0x1/0xfff,nw_dst=192.168.77.200 actions=set_field:00:00:10:10:00:66->eth_dst,goto_table:L3DecTTL",
"cookie=0x1010000000000, table=L2ForwardingCalc, priority=200,dl_dst=00:00:10:10:00:66 actions=set_field:0x64->reg1,set_field:0x200000/0x600000->reg0,goto_table:IngressSecurityClassifier",
Expand Down Expand Up @@ -878,14 +878,14 @@ func Test_client_UpdatePodFlows(t *testing.T) {
podUpdatedInterfaceIPs: []net.IP{podIPv4Updated},
expectedFlows: []string{
"cookie=0x1010000000000, table=ARPSpoofGuard, priority=200,arp,in_port=100,arp_spa=10.10.0.66,arp_sha=00:00:10:10:00:66 actions=goto_table:ARPResponder",
"cookie=0x1010000000000, table=Classifier, priority=190,in_port=100 actions=set_field:0x3/0xf->reg0,goto_table:SpoofGuard",
"cookie=0x1010000000000, table=Classifier, priority=190,in_port=100 actions=set_field:0x3/0xf->reg0,set_field:0x10000000/0x10000000->reg4,goto_table:SpoofGuard",
"cookie=0x1010000000000, table=SpoofGuard, priority=200,ip,in_port=100,dl_src=00:00:10:10:00:66,nw_src=10.10.0.66 actions=goto_table:UnSNAT",
"cookie=0x1010000000000, table=L3Forwarding, priority=200,ip,reg0=0x200/0x200,nw_dst=10.10.0.66 actions=set_field:0a:00:00:00:00:01->eth_src,set_field:00:00:10:10:00:66->eth_dst,goto_table:L3DecTTL",
"cookie=0x1010000000000, table=L2ForwardingCalc, priority=200,dl_dst=00:00:10:10:00:66 actions=set_field:0x64->reg1,set_field:0x200000/0x600000->reg0,goto_table:IngressSecurityClassifier",
},
expectedNewFlows: []string{
"cookie=0x1010000000000, table=ARPSpoofGuard, priority=200,arp,in_port=100,arp_spa=10.10.0.88,arp_sha=00:00:10:10:00:66 actions=goto_table:ARPResponder",
"cookie=0x1010000000000, table=Classifier, priority=190,in_port=100 actions=set_field:0x3/0xf->reg0,goto_table:SpoofGuard",
"cookie=0x1010000000000, table=Classifier, priority=190,in_port=100 actions=set_field:0x3/0xf->reg0,set_field:0x10000000/0x10000000->reg4,goto_table:SpoofGuard",
"cookie=0x1010000000000, table=SpoofGuard, priority=200,ip,in_port=100,dl_src=00:00:10:10:00:66,nw_src=10.10.0.88 actions=goto_table:UnSNAT",
"cookie=0x1010000000000, table=L3Forwarding, priority=200,ip,reg0=0x200/0x200,nw_dst=10.10.0.88 actions=set_field:0a:00:00:00:00:01->eth_src,set_field:00:00:10:10:00:66->eth_dst,goto_table:L3DecTTL",
"cookie=0x1010000000000, table=L2ForwardingCalc, priority=200,dl_dst=00:00:10:10:00:66 actions=set_field:0x64->reg1,set_field:0x200000/0x600000->reg0,goto_table:IngressSecurityClassifier",
Expand All @@ -897,13 +897,13 @@ func Test_client_UpdatePodFlows(t *testing.T) {
podInterfaceIPs: []net.IP{podIPv6},
podUpdatedInterfaceIPs: []net.IP{podIPv6Updated},
expectedFlows: []string{
"cookie=0x1010000000000, table=Classifier, priority=190,in_port=100 actions=set_field:0x3/0xf->reg0,goto_table:SpoofGuard",
"cookie=0x1010000000000, table=Classifier, priority=190,in_port=100 actions=set_field:0x3/0xf->reg0,set_field:0x10000000/0x10000000->reg4,goto_table:SpoofGuard",
"cookie=0x1010000000000, table=SpoofGuard, priority=200,ipv6,in_port=100,dl_src=00:00:10:10:00:66,ipv6_src=fec0:10:10::66 actions=goto_table:IPv6",
"cookie=0x1010000000000, table=L3Forwarding, priority=200,ipv6,reg0=0x200/0x200,ipv6_dst=fec0:10:10::66 actions=set_field:0a:00:00:00:00:01->eth_src,set_field:00:00:10:10:00:66->eth_dst,goto_table:L3DecTTL",
"cookie=0x1010000000000, table=L2ForwardingCalc, priority=200,dl_dst=00:00:10:10:00:66 actions=set_field:0x64->reg1,set_field:0x200000/0x600000->reg0,goto_table:IngressSecurityClassifier",
},
expectedNewFlows: []string{
"cookie=0x1010000000000, table=Classifier, priority=190,in_port=100 actions=set_field:0x3/0xf->reg0,goto_table:SpoofGuard",
"cookie=0x1010000000000, table=Classifier, priority=190,in_port=100 actions=set_field:0x3/0xf->reg0,set_field:0x10000000/0x10000000->reg4,goto_table:SpoofGuard",
"cookie=0x1010000000000, table=SpoofGuard, priority=200,ipv6,in_port=100,dl_src=00:00:10:10:00:66,ipv6_src=fec0:10:10::88 actions=goto_table:IPv6",
"cookie=0x1010000000000, table=L3Forwarding, priority=200,ipv6,reg0=0x200/0x200,ipv6_dst=fec0:10:10::88 actions=set_field:0a:00:00:00:00:01->eth_src,set_field:00:00:10:10:00:66->eth_dst,goto_table:L3DecTTL",
"cookie=0x1010000000000, table=L2ForwardingCalc, priority=200,dl_dst=00:00:10:10:00:66 actions=set_field:0x64->reg1,set_field:0x200000/0x600000->reg0,goto_table:IngressSecurityClassifier",
Expand Down Expand Up @@ -1308,7 +1308,7 @@ func Test_client_InstallServiceFlows(t *testing.T) {
isNodePort: true,
trafficPolicyLocal: true,
expectedFlows: []string{
"cookie=0x1030000000000, table=ServiceLB, priority=210,udp,reg4=0x90000/0xf0000,nw_src=10.10.0.0/24,tp_dst=80 actions=set_field:0x200/0x200->reg0,set_field:0x30000/0x70000->reg4,set_field:0x200000/0x200000->reg4,set_field:0x64->reg7,group:100",
"cookie=0x1030000000000, table=ServiceLB, priority=210,udp,reg4=0x10090000/0x100f0000,tp_dst=80 actions=set_field:0x200/0x200->reg0,set_field:0x30000/0x70000->reg4,set_field:0x200000/0x200000->reg4,set_field:0x64->reg7,group:100",
"cookie=0x1030000000000, table=ServiceLB, priority=200,udp,reg4=0x90000/0xf0000,tp_dst=80 actions=set_field:0x200/0x200->reg0,set_field:0x30000/0x70000->reg4,set_field:0x200000/0x200000->reg4,set_field:0x65->reg7,group:101",
"cookie=0x1030000000065, table=ServiceLB, priority=190,udp,reg4=0xb0000/0xf0000,tp_dst=80 actions=learn(table=SessionAffinity,hard_timeout=100,priority=200,delete_learned,cookie=0x1030000000065,eth_type=0x800,nw_proto=0x11,OXM_OF_UDP_DST[],NXM_OF_IP_DST[],NXM_OF_IP_SRC[],load:NXM_NX_REG4[0..15]->NXM_NX_REG4[0..15],load:NXM_NX_REG4[26]->NXM_NX_REG4[26],load:NXM_NX_REG3[]->NXM_NX_REG3[],load:0x2->NXM_NX_REG4[16..18],load:0x1->NXM_NX_REG0[9],load:0x1->NXM_NX_REG4[21]),set_field:0x20000/0x70000->reg4,goto_table:EndpointDNAT",
},
Expand Down Expand Up @@ -1343,7 +1343,7 @@ func Test_client_InstallServiceFlows(t *testing.T) {
isExternal: true,
trafficPolicyLocal: true,
expectedFlows: []string{
"cookie=0x1030000000000, table=ServiceLB, priority=210,sctp,reg4=0x10000/0x70000,nw_src=10.10.0.0/24,nw_dst=10.96.0.100,tp_dst=80 actions=set_field:0x200/0x200->reg0,set_field:0x30000/0x70000->reg4,set_field:0x200000/0x200000->reg4,set_field:0x64->reg7,group:100",
"cookie=0x1030000000000, table=ServiceLB, priority=210,sctp,reg4=0x10010000/0x10070000,nw_dst=10.96.0.100,tp_dst=80 actions=set_field:0x200/0x200->reg0,set_field:0x30000/0x70000->reg4,set_field:0x200000/0x200000->reg4,set_field:0x64->reg7,group:100",
"cookie=0x1030000000000, table=ServiceLB, priority=200,sctp,reg4=0x10000/0x70000,nw_dst=10.96.0.100,tp_dst=80 actions=set_field:0x200/0x200->reg0,set_field:0x30000/0x70000->reg4,set_field:0x200000/0x200000->reg4,set_field:0x65->reg7,group:101",
"cookie=0x1030000000065, table=ServiceLB, priority=190,sctp,reg4=0x30000/0x70000,nw_dst=10.96.0.100,tp_dst=80 actions=learn(table=SessionAffinity,hard_timeout=100,priority=200,delete_learned,cookie=0x1030000000065,eth_type=0x800,nw_proto=0x84,OXM_OF_SCTP_DST[],NXM_OF_IP_DST[],NXM_OF_IP_SRC[],load:NXM_NX_REG4[0..15]->NXM_NX_REG4[0..15],load:NXM_NX_REG4[26]->NXM_NX_REG4[26],load:NXM_NX_REG3[]->NXM_NX_REG3[],load:0x2->NXM_NX_REG4[16..18],load:0x1->NXM_NX_REG0[9],load:0x1->NXM_NX_REG4[21]),set_field:0x20000/0x70000->reg4,goto_table:EndpointDNAT",
},
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4 changes: 3 additions & 1 deletion pkg/agent/openflow/fields.go
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Original file line number Diff line number Diff line change
Expand Up @@ -41,7 +41,7 @@ var (
PktSourceField = binding.NewRegField(0, 0, 3)
FromTunnelRegMark = binding.NewRegMark(PktSourceField, tunnelVal)
FromGatewayRegMark = binding.NewRegMark(PktSourceField, gatewayVal)
FromLocalRegMark = binding.NewRegMark(PktSourceField, localVal)
FromPodRegMark = binding.NewRegMark(PktSourceField, localVal)
FromUplinkRegMark = binding.NewRegMark(PktSourceField, uplinkVal)
FromBridgeRegMark = binding.NewRegMark(PktSourceField, bridgeVal)
FromTCReturnRegMark = binding.NewRegMark(PktSourceField, tcReturnVal)
Expand Down Expand Up @@ -147,6 +147,8 @@ var (
// the Node's traffic is forwarded to OVS. And even if there is no masquerade rule, there should be no problem to
// consider the packet external sourced as the other IPs are routable externally anyway.
FromExternalRegMark = binding.NewOneBitRegMark(4, 27)
// reg4[28]: Mark to indicate that whether the traffic's source is a local Pod or the Node.
FromLocalRegMark = binding.NewOneBitRegMark(4, 28)

// reg5(NXM_NX_REG5)
// Field to cache the Egress conjunction ID hit by TraceFlow packet.
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