selftest/bpf: Add missed ip6ip6 test back
In comment173ca26e9b("samples/bpf: add comprehensive ipip, ipip6, ip6ip6 test") we added ip6ip6 test for bpf tunnel testing. But in commit933a741e3b("selftests/bpf: bpf tunnel test.") when we moved it to the current folder, we didn't add it. This patch add the ip6ip6 test back to bpf tunnel test. Update the ipip6's topology for both IPv4 and IPv6 testing. Since iperf test is removed as currect framework simplified it in purpose, I also removed unused tcp checkings in test_tunnel_kern.c. Fixes:933a741e3b("selftests/bpf: bpf tunnel test.") Signed-off-by: Hangbin Liu <liuhangbin@gmail.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20201110015013.1570716-2-liuhangbin@gmail.com
This commit is contained in:
Hangbin Liu
Alexei Starovoitov
parent
0e6f601eb5
commit
58cfa49c2b
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@ -15,7 +15,6 @@
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#include <linux/ip.h>
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#include <linux/ipv6.h>
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#include <linux/types.h>
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#include <linux/tcp.h>
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#include <linux/socket.h>
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#include <linux/pkt_cls.h>
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#include <linux/erspan.h>
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@ -528,12 +527,11 @@ int _ipip_set_tunnel(struct __sk_buff *skb)
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struct bpf_tunnel_key key = {};
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void *data = (void *)(long)skb->data;
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struct iphdr *iph = data;
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struct tcphdr *tcp = data + sizeof(*iph);
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void *data_end = (void *)(long)skb->data_end;
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int ret;
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/* single length check */
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if (data + sizeof(*iph) + sizeof(*tcp) > data_end) {
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if (data + sizeof(*iph) > data_end) {
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ERROR(1);
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return TC_ACT_SHOT;
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}
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@ -541,16 +539,6 @@ int _ipip_set_tunnel(struct __sk_buff *skb)
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key.tunnel_ttl = 64;
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if (iph->protocol == IPPROTO_ICMP) {
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key.remote_ipv4 = 0xac100164; /* 172.16.1.100 */
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} else {
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if (iph->protocol != IPPROTO_TCP || iph->ihl != 5)
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return TC_ACT_SHOT;
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if (tcp->dest == bpf_htons(5200))
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key.remote_ipv4 = 0xac100164; /* 172.16.1.100 */
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else if (tcp->dest == bpf_htons(5201))
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key.remote_ipv4 = 0xac100165; /* 172.16.1.101 */
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else
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return TC_ACT_SHOT;
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}
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ret = bpf_skb_set_tunnel_key(skb, &key, sizeof(key), 0);
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@ -585,19 +573,20 @@ int _ipip6_set_tunnel(struct __sk_buff *skb)
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struct bpf_tunnel_key key = {};
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void *data = (void *)(long)skb->data;
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struct iphdr *iph = data;
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struct tcphdr *tcp = data + sizeof(*iph);
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void *data_end = (void *)(long)skb->data_end;
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int ret;
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/* single length check */
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if (data + sizeof(*iph) + sizeof(*tcp) > data_end) {
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if (data + sizeof(*iph) > data_end) {
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ERROR(1);
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return TC_ACT_SHOT;
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}
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__builtin_memset(&key, 0x0, sizeof(key));
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key.remote_ipv6[3] = bpf_htonl(0x11); /* ::11 */
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key.tunnel_ttl = 64;
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if (iph->protocol == IPPROTO_ICMP) {
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key.remote_ipv6[3] = bpf_htonl(0x11); /* ::11 */
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}
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ret = bpf_skb_set_tunnel_key(skb, &key, sizeof(key),
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BPF_F_TUNINFO_IPV6);
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@ -634,35 +623,18 @@ int _ip6ip6_set_tunnel(struct __sk_buff *skb)
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struct bpf_tunnel_key key = {};
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void *data = (void *)(long)skb->data;
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struct ipv6hdr *iph = data;
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struct tcphdr *tcp = data + sizeof(*iph);
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void *data_end = (void *)(long)skb->data_end;
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int ret;
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/* single length check */
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if (data + sizeof(*iph) + sizeof(*tcp) > data_end) {
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if (data + sizeof(*iph) > data_end) {
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ERROR(1);
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return TC_ACT_SHOT;
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}
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key.remote_ipv6[0] = bpf_htonl(0x2401db00);
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key.tunnel_ttl = 64;
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if (iph->nexthdr == 58 /* NEXTHDR_ICMP */) {
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key.remote_ipv6[3] = bpf_htonl(1);
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} else {
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if (iph->nexthdr != 6 /* NEXTHDR_TCP */) {
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ERROR(iph->nexthdr);
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return TC_ACT_SHOT;
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}
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if (tcp->dest == bpf_htons(5200)) {
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key.remote_ipv6[3] = bpf_htonl(1);
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} else if (tcp->dest == bpf_htons(5201)) {
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key.remote_ipv6[3] = bpf_htonl(2);
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} else {
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ERROR(tcp->dest);
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return TC_ACT_SHOT;
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}
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key.remote_ipv6[3] = bpf_htonl(0x11); /* ::11 */
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}
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ret = bpf_skb_set_tunnel_key(skb, &key, sizeof(key),
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@ -24,12 +24,12 @@
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# Root namespace with metadata-mode tunnel + BPF
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# Device names and addresses:
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# veth1 IP: 172.16.1.200, IPv6: 00::22 (underlay)
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# tunnel dev <type>11, ex: gre11, IPv4: 10.1.1.200 (overlay)
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# tunnel dev <type>11, ex: gre11, IPv4: 10.1.1.200, IPv6: 1::22 (overlay)
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#
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# Namespace at_ns0 with native tunnel
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# Device names and addresses:
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# veth0 IPv4: 172.16.1.100, IPv6: 00::11 (underlay)
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# tunnel dev <type>00, ex: gre00, IPv4: 10.1.1.100 (overlay)
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# tunnel dev <type>00, ex: gre00, IPv4: 10.1.1.100, IPv6: 1::11 (overlay)
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#
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#
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# End-to-end ping packet flow
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@ -250,7 +250,7 @@ add_ipip_tunnel()
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ip addr add dev $DEV 10.1.1.200/24
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}
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add_ipip6tnl_tunnel()
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add_ip6tnl_tunnel()
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{
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ip netns exec at_ns0 ip addr add ::11/96 dev veth0
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ip netns exec at_ns0 ip link set dev veth0 up
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@ -262,11 +262,13 @@ add_ipip6tnl_tunnel()
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ip link add dev $DEV_NS type $TYPE \
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local ::11 remote ::22
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ip netns exec at_ns0 ip addr add dev $DEV_NS 10.1.1.100/24
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ip netns exec at_ns0 ip addr add dev $DEV_NS 1::11/96
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ip netns exec at_ns0 ip link set dev $DEV_NS up
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# root namespace
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ip link add dev $DEV type $TYPE external
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ip addr add dev $DEV 10.1.1.200/24
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ip addr add dev $DEV 1::22/96
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ip link set dev $DEV up
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}
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@ -534,7 +536,7 @@ test_ipip6()
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check $TYPE
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config_device
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add_ipip6tnl_tunnel
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add_ip6tnl_tunnel
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ip link set dev veth1 mtu 1500
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attach_bpf $DEV ipip6_set_tunnel ipip6_get_tunnel
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# underlay
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@ -553,6 +555,34 @@ test_ipip6()
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echo -e ${GREEN}"PASS: $TYPE"${NC}
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}
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test_ip6ip6()
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{
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TYPE=ip6tnl
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DEV_NS=ip6ip6tnl00
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DEV=ip6ip6tnl11
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ret=0
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check $TYPE
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config_device
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add_ip6tnl_tunnel
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ip link set dev veth1 mtu 1500
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attach_bpf $DEV ip6ip6_set_tunnel ip6ip6_get_tunnel
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# underlay
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ping6 $PING_ARG ::11
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# ip6 over ip6
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ping6 $PING_ARG 1::11
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check_err $?
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ip netns exec at_ns0 ping6 $PING_ARG 1::22
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check_err $?
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cleanup
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if [ $ret -ne 0 ]; then
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echo -e ${RED}"FAIL: ip6$TYPE"${NC}
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return 1
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fi
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echo -e ${GREEN}"PASS: ip6$TYPE"${NC}
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}
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setup_xfrm_tunnel()
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{
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auth=0x$(printf '1%.0s' {1..40})
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@ -646,6 +676,7 @@ cleanup()
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ip link del veth1 2> /dev/null
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ip link del ipip11 2> /dev/null
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ip link del ipip6tnl11 2> /dev/null
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ip link del ip6ip6tnl11 2> /dev/null
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ip link del gretap11 2> /dev/null
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ip link del ip6gre11 2> /dev/null
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ip link del ip6gretap11 2> /dev/null
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@ -742,6 +773,10 @@ bpf_tunnel_test()
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test_ipip6
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errors=$(( $errors + $? ))
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echo "Testing IP6IP6 tunnel..."
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test_ip6ip6
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errors=$(( $errors + $? ))
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echo "Testing IPSec tunnel..."
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test_xfrm_tunnel
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errors=$(( $errors + $? ))
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