samples/bpf: extend test_tunnel_bpf.sh with ERSPAN
Extend existing tests for vxlan, gre, geneve, ipip to include ERSPAN tunnel. Signed-off-by: William Tu <u9012063@gmail.com> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Родитель
1a66a836da
Коммит
ef88f89c83
|
@ -17,6 +17,7 @@
|
|||
#include <uapi/linux/pkt_cls.h>
|
||||
#include <net/ipv6.h>
|
||||
#include "bpf_helpers.h"
|
||||
#include "bpf_endian.h"
|
||||
|
||||
#define _htonl __builtin_bswap32
|
||||
#define ERROR(ret) do {\
|
||||
|
@ -38,6 +39,10 @@ struct vxlan_metadata {
|
|||
u32 gbp;
|
||||
};
|
||||
|
||||
struct erspan_metadata {
|
||||
__be32 index;
|
||||
};
|
||||
|
||||
SEC("gre_set_tunnel")
|
||||
int _gre_set_tunnel(struct __sk_buff *skb)
|
||||
{
|
||||
|
@ -76,6 +81,63 @@ int _gre_get_tunnel(struct __sk_buff *skb)
|
|||
return TC_ACT_OK;
|
||||
}
|
||||
|
||||
SEC("erspan_set_tunnel")
|
||||
int _erspan_set_tunnel(struct __sk_buff *skb)
|
||||
{
|
||||
struct bpf_tunnel_key key;
|
||||
struct erspan_metadata md;
|
||||
int ret;
|
||||
|
||||
__builtin_memset(&key, 0x0, sizeof(key));
|
||||
key.remote_ipv4 = 0xac100164; /* 172.16.1.100 */
|
||||
key.tunnel_id = 2;
|
||||
key.tunnel_tos = 0;
|
||||
key.tunnel_ttl = 64;
|
||||
|
||||
ret = bpf_skb_set_tunnel_key(skb, &key, sizeof(key), BPF_F_ZERO_CSUM_TX);
|
||||
if (ret < 0) {
|
||||
ERROR(ret);
|
||||
return TC_ACT_SHOT;
|
||||
}
|
||||
|
||||
md.index = htonl(123);
|
||||
ret = bpf_skb_set_tunnel_opt(skb, &md, sizeof(md));
|
||||
if (ret < 0) {
|
||||
ERROR(ret);
|
||||
return TC_ACT_SHOT;
|
||||
}
|
||||
|
||||
return TC_ACT_OK;
|
||||
}
|
||||
|
||||
SEC("erspan_get_tunnel")
|
||||
int _erspan_get_tunnel(struct __sk_buff *skb)
|
||||
{
|
||||
char fmt[] = "key %d remote ip 0x%x erspan index 0x%x\n";
|
||||
struct bpf_tunnel_key key;
|
||||
struct erspan_metadata md;
|
||||
u32 index;
|
||||
int ret;
|
||||
|
||||
ret = bpf_skb_get_tunnel_key(skb, &key, sizeof(key), 0);
|
||||
if (ret < 0) {
|
||||
ERROR(ret);
|
||||
return TC_ACT_SHOT;
|
||||
}
|
||||
|
||||
ret = bpf_skb_get_tunnel_opt(skb, &md, sizeof(md));
|
||||
if (ret < 0) {
|
||||
ERROR(ret);
|
||||
return TC_ACT_SHOT;
|
||||
}
|
||||
|
||||
index = bpf_ntohl(md.index);
|
||||
bpf_trace_printk(fmt, sizeof(fmt),
|
||||
key.tunnel_id, key.remote_ipv4, index);
|
||||
|
||||
return TC_ACT_OK;
|
||||
}
|
||||
|
||||
SEC("vxlan_set_tunnel")
|
||||
int _vxlan_set_tunnel(struct __sk_buff *skb)
|
||||
{
|
||||
|
@ -378,5 +440,4 @@ int _ip6ip6_get_tunnel(struct __sk_buff *skb)
|
|||
return TC_ACT_OK;
|
||||
}
|
||||
|
||||
|
||||
char _license[] SEC("license") = "GPL";
|
||||
|
|
|
@ -32,6 +32,19 @@ function add_gre_tunnel {
|
|||
ip addr add dev $DEV 10.1.1.200/24
|
||||
}
|
||||
|
||||
function add_erspan_tunnel {
|
||||
# in namespace
|
||||
ip netns exec at_ns0 \
|
||||
ip link add dev $DEV_NS type $TYPE seq key 2 local 172.16.1.100 remote 172.16.1.200 erspan 123
|
||||
ip netns exec at_ns0 ip link set dev $DEV_NS up
|
||||
ip netns exec at_ns0 ip addr add dev $DEV_NS 10.1.1.100/24
|
||||
|
||||
# out of namespace
|
||||
ip link add dev $DEV type $TYPE external
|
||||
ip link set dev $DEV up
|
||||
ip addr add dev $DEV 10.1.1.200/24
|
||||
}
|
||||
|
||||
function add_vxlan_tunnel {
|
||||
# Set static ARP entry here because iptables set-mark works
|
||||
# on L3 packet, as a result not applying to ARP packets,
|
||||
|
@ -99,6 +112,18 @@ function test_gre {
|
|||
cleanup
|
||||
}
|
||||
|
||||
function test_erspan {
|
||||
TYPE=erspan
|
||||
DEV_NS=erspan00
|
||||
DEV=erspan11
|
||||
config_device
|
||||
add_erspan_tunnel
|
||||
attach_bpf $DEV erspan_set_tunnel erspan_get_tunnel
|
||||
ping -c 1 10.1.1.100
|
||||
ip netns exec at_ns0 ping -c 1 10.1.1.200
|
||||
cleanup
|
||||
}
|
||||
|
||||
function test_vxlan {
|
||||
TYPE=vxlan
|
||||
DEV_NS=vxlan00
|
||||
|
@ -151,14 +176,18 @@ function cleanup {
|
|||
ip link del gretap11
|
||||
ip link del vxlan11
|
||||
ip link del geneve11
|
||||
ip link del erspan11
|
||||
pkill tcpdump
|
||||
pkill cat
|
||||
set -ex
|
||||
}
|
||||
|
||||
trap cleanup 0 2 3 6 9
|
||||
cleanup
|
||||
echo "Testing GRE tunnel..."
|
||||
test_gre
|
||||
echo "Testing ERSPAN tunnel..."
|
||||
test_erspan
|
||||
echo "Testing VXLAN tunnel..."
|
||||
test_vxlan
|
||||
echo "Testing GENEVE tunnel..."
|
||||
|
|
Загрузка…
Ссылка в новой задаче