erspan: add kernel datapath support

pass check, check-kernel (4.16-rc4), check-system-userspace

Signed-off-by: William Tu <u9012063@gmail.com>
Signed-off-by: Ben Pfaff <blp@ovn.org>

1 files changed, 93 insertions, 0 deletions

diff --git a/tests/tunnel.at b/tests/tunnel.at
index 620f4c829..315453d3f 100644
--- a/tests/tunnel.at
+++ b/tests/tunnel.at
@@ -478,6 +478,99 @@ AT_CHECK([tail -1 stdout], [0],
 OVS_VSWITCHD_STOP
 AT_CLEANUP
 
+AT_SETUP([tunnel - ERSPAN v1/v2 metadata])
+OVS_VSWITCHD_START([add-port br0 p1 -- set Interface p1 type=dummy \
+                        ofport_request=1 \
+                    -- add-port br0 p2 -- set Interface p2 type=dummy \
+                        ofport_request=2 \
+                    -- add-port br0 p3 -- set Interface p3 type=erspan \
+                        options:remote_ip=1.1.1.1 ofport_request=3 \
+                        options:key=1 options:erspan_ver=1 options:erspan_idx=7 \
+                    -- add-port br0 p4 -- set Interface p4 type=erspan \
+                        options:remote_ip=1.1.1.2 ofport_request=4 \
+                        options:key=2 options:erspan_ver=2 options:erspan_dir=1 options:erspan_hwid=7 \
+                    ])
+OVS_VSWITCHD_DISABLE_TUNNEL_PUSH_POP
+
+AT_CHECK([ovs-appctl dpif/show | tail -n +3], [0], [dnl
+		br0 65534/100: (dummy-internal)
+		p1 1/3: (dummy)
+		p2 2/2: (dummy)
+		p3 3/1: (erspan: erspan_idx=0x7, erspan_ver=1, key=1, remote_ip=1.1.1.1)
+		p4 4/1: (erspan: erspan_dir=1, erspan_hwid=0x7, erspan_ver=2, key=2, remote_ip=1.1.1.2)
+])
+
+AT_DATA([flows.txt], [dnl
+in_port=1,actions=3
+in_port=2,actions=4
+in_port=3,tun_erspan_ver=1,tun_erspan_idx=0x7,actions=1
+in_port=4,tun_erspan_ver=2,tun_erspan_dir=1,tun_erspan_hwid=0xf/0x1,actions=2
+])
+AT_CHECK([ovs-ofctl add-flows br0 flows.txt])
+
+dnl test encap: in_port=1,actions=3 (erspan v1 port)
+AT_CHECK([ovs-appctl ofproto/trace ovs-dummy 'in_port(3),eth(src=50:54:00:00:00:05,dst=50:54:00:00:00:07),eth_type(0x0800),ipv4(src=192.168.0.1,dst=192.168.0.2,proto=1,tos=0,ttl=128,frag=no),icmp(type=8,code=0)'], [0], [stdout])
+AT_CHECK([tail -1 stdout], [0],
+  [Datapath actions: set(tunnel(tun_id=0x1,dst=1.1.1.1,ttl=64,erspan(ver=1,idx=0x7),flags(df|key))),1
+])
+
+dnl test encap: in_port=2,actions=4 (erspan v2 port)
+AT_CHECK([ovs-appctl ofproto/trace ovs-dummy 'in_port(2),eth(src=50:54:00:00:00:05,dst=50:54:00:00:00:07),eth_type(0x0800),ipv4(src=192.168.0.1,dst=192.168.0.2,proto=1,tos=0,ttl=128,frag=no),icmp(type=8,code=0)'], [0], [stdout])
+AT_CHECK([tail -1 stdout], [0],
+  [Datapath actions: set(tunnel(tun_id=0x2,dst=1.1.1.2,ttl=64,erspan(ver=2,dir=1,hwid=0x7),flags(df|key))),1
+])
+
+dnl receive packet from ERSPAN port with v1 metadata
+AT_CHECK([ovs-appctl ofproto/trace ovs-dummy 'recirc_id(0),tunnel(tun_id=0x1,src=1.1.1.1,dst=2.2.2.2,ttl=64,erspan(ver=1,idx=0x7),flags(df|key)),in_port(1),skb_mark(0),eth(src=50:54:00:00:00:05,dst=50:54:00:00:00:07),eth_type(0x0800),ipv4(frag=no)'], [0], [stdout])
+AT_CHECK([tail -2 stdout], [0],
+  [Megaflow: recirc_id=0,eth,ip,tun_id=0x1,tun_src=1.1.1.1,tun_dst=2.2.2.2,tun_tos=0,erspan_ver=1,erspan_idx=0x7,tun_flags=+df-csum+key,in_port=3,nw_frag=no
+Datapath actions: 3
+])
+
+dnl receive packet from ERSPAN port with wrong v1 metadata
+AT_CHECK([ovs-appctl ofproto/trace ovs-dummy 'recirc_id(0),tunnel(tun_id=0x1,src=1.1.1.1,dst=2.2.2.2,ttl=64,erspan(ver=1,idx=0xabcd),flags(df|key)),in_port(1),skb_mark(0),eth(src=50:54:00:00:00:05,dst=50:54:00:00:00:07),eth_type(0x0800),ipv4(frag=no)'], [0], [stdout])
+AT_CHECK([tail -2 stdout], [0],
+  [Megaflow: recirc_id=0,eth,ip,tun_id=0x1,tun_src=1.1.1.1,tun_dst=2.2.2.2,tun_tos=0,erspan_ver=1,erspan_idx=0xabcd,tun_flags=+df-csum+key,in_port=3,nw_frag=no
+Datapath actions: drop
+])
+
+dnl receive packet from ERSPAN port with v2 metadata
+AT_CHECK([ovs-appctl ofproto/trace ovs-dummy 'recirc_id(0),tunnel(tun_id=0x2,src=1.1.1.2,dst=2.2.2.2,ttl=64,erspan(ver=2,dir=1,hwid=0x7),flags(df|key)),in_port(1),skb_mark(0),eth(src=50:54:00:00:00:05,dst=50:54:00:00:00:07),eth_type(0x0800),ipv4(frag=no)'], [0], [stdout])
+AT_CHECK([tail -2 stdout], [0],
+  [Megaflow: recirc_id=0,eth,ip,tun_id=0x2,tun_src=1.1.1.2,tun_dst=2.2.2.2,tun_tos=0,erspan_ver=2,erspan_dir=1,erspan_hwid=0x1,tun_flags=+df-csum+key,in_port=4,nw_frag=no
+Datapath actions: 2
+])
+
+dnl receive packet from ERSPAN port with wrong v2 metadata
+AT_CHECK([ovs-appctl ofproto/trace ovs-dummy 'recirc_id(0),tunnel(tun_id=0x2,src=1.1.1.2,dst=2.2.2.2,ttl=64,erspan(ver=2,dir=0,hwid=0x17),flags(df|key)),in_port(1),skb_mark(0),eth(src=50:54:00:00:00:05,dst=50:54:00:00:00:07),eth_type(0x0800),ipv4(frag=no)'], [0], [stdout])
+AT_CHECK([tail -2 stdout], [0],
+  [Megaflow: recirc_id=0,eth,ip,tun_id=0x2,tun_src=1.1.1.2,tun_dst=2.2.2.2,tun_tos=0,erspan_ver=2,erspan_dir=0,erspan_hwid=0x1,tun_flags=+df-csum+key,in_port=4,nw_frag=no
+Datapath actions: drop
+])
+
+dnl test wildcard mask: recevie all v2 regardless of its metadata
+AT_CHECK([ovs-ofctl del-flows br0 in_port=4,tun_erspan_ver=2,tun_erspan_dir=1,tun_erspan_hwid=0xf/0x1])
+AT_CHECK([ovs-ofctl add-flow br0 in_port=4,tun_erspan_ver=2,tun_erspan_dir=0/0,tun_erspan_hwid=0x0/0x0,actions=2])
+
+AT_CHECK([ovs-ofctl dump-flows br0 | ofctl_strip],
+[0], [dnl
+NXST_FLOW reply:
+ in_port=1 actions=output:3
+ in_port=2 actions=output:4
+ erspan_ver=1,erspan_idx=0x7,in_port=3 actions=output:1
+ erspan_ver=2,in_port=4 actions=output:2
+])
+
+dnl this time it won't drop
+AT_CHECK([ovs-appctl ofproto/trace ovs-dummy 'recirc_id(0),tunnel(tun_id=0x2,src=1.1.1.2,dst=2.2.2.2,ttl=64,erspan(ver=2,dir=0,hwid=0x17),flags(df|key)),in_port(1),skb_mark(0),eth(src=50:54:00:00:00:05,dst=50:54:00:00:00:07),eth_type(0x0800),ipv4(frag=no)'], [0], [stdout])
+AT_CHECK([tail -2 stdout], [0],
+  [Megaflow: recirc_id=0,eth,ip,tun_id=0x2,tun_src=1.1.1.2,tun_dst=2.2.2.2,tun_tos=0,erspan_ver=2,tun_flags=+df-csum+key,in_port=4,nw_frag=no
+Datapath actions: 2
+])
+
+OVS_VSWITCHD_STOP
+AT_CLEANUP
+
 AT_SETUP([tunnel - Geneve metadata])
 OVS_VSWITCHD_START([add-port br0 p1 -- set Interface p1 type=geneve \
                     options:remote_ip=1.1.1.1 ofport_request=1 \