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selftests_bpf: add L2 encap to test_tc_tunnel
Update test_tc_tunnel to verify adding inner L2 header encapsulation (an MPLS label or ethernet header) works. Signed-off-by: Alan Maguire <alan.maguire@oracle.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
This commit is contained in:
Alan Maguire
Daniel Borkmann
parent
1db04c300a
commit
3ec61df82b
@ -29,3 +29,7 @@ CONFIG_NET_FOU=m
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CONFIG_NET_FOU_IP_TUNNELS=y
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CONFIG_IPV6_FOU=m
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CONFIG_IPV6_FOU_TUNNEL=m
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CONFIG_MPLS=y
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CONFIG_NET_MPLS_GSO=m
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CONFIG_MPLS_ROUTING=m
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CONFIG_MPLS_IPTUNNEL=m
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@ -11,6 +11,7 @@
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#include <linux/in.h>
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#include <linux/ip.h>
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#include <linux/ipv6.h>
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#include <linux/mpls.h>
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#include <linux/tcp.h>
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#include <linux/udp.h>
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#include <linux/pkt_cls.h>
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@ -22,7 +23,14 @@
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static const int cfg_port = 8000;
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static const int cfg_udp_src = 20000;
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static const int cfg_udp_dst = 5555;
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#define UDP_PORT 5555
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#define MPLS_OVER_UDP_PORT 6635
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#define ETH_OVER_UDP_PORT 7777
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/* MPLS label 1000 with S bit (last label) set and ttl of 255. */
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static const __u32 mpls_label = __bpf_constant_htonl(1000 << 12 |
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MPLS_LS_S_MASK | 0xff);
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struct gre_hdr {
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__be16 flags;
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@ -37,11 +45,13 @@ union l4hdr {
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struct v4hdr {
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struct iphdr ip;
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union l4hdr l4hdr;
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__u8 pad[16]; /* enough space for L2 header */
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} __attribute__((packed));
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struct v6hdr {
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struct ipv6hdr ip;
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union l4hdr l4hdr;
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__u8 pad[16]; /* enough space for L2 header */
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} __attribute__((packed));
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static __always_inline void set_ipv4_csum(struct iphdr *iph)
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@ -59,13 +69,15 @@ static __always_inline void set_ipv4_csum(struct iphdr *iph)
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iph->check = ~((csum & 0xffff) + (csum >> 16));
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}
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static __always_inline int encap_ipv4(struct __sk_buff *skb, __u8 encap_proto)
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static __always_inline int encap_ipv4(struct __sk_buff *skb, __u8 encap_proto,
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__u16 l2_proto)
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{
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__u16 udp_dst = UDP_PORT;
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struct iphdr iph_inner;
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struct v4hdr h_outer;
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struct tcphdr tcph;
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int olen, l2_len;
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__u64 flags;
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int olen;
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if (bpf_skb_load_bytes(skb, ETH_HLEN, &iph_inner,
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sizeof(iph_inner)) < 0)
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@ -83,23 +95,38 @@ static __always_inline int encap_ipv4(struct __sk_buff *skb, __u8 encap_proto)
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return TC_ACT_OK;
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olen = sizeof(h_outer.ip);
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l2_len = 0;
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flags = BPF_F_ADJ_ROOM_FIXED_GSO | BPF_F_ADJ_ROOM_ENCAP_L3_IPV4;
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switch (l2_proto) {
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case ETH_P_MPLS_UC:
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l2_len = sizeof(mpls_label);
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udp_dst = MPLS_OVER_UDP_PORT;
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break;
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case ETH_P_TEB:
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l2_len = ETH_HLEN;
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udp_dst = ETH_OVER_UDP_PORT;
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break;
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}
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flags |= BPF_F_ADJ_ROOM_ENCAP_L2(l2_len);
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switch (encap_proto) {
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case IPPROTO_GRE:
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flags |= BPF_F_ADJ_ROOM_ENCAP_L4_GRE;
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olen += sizeof(h_outer.l4hdr.gre);
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h_outer.l4hdr.gre.protocol = bpf_htons(ETH_P_IP);
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h_outer.l4hdr.gre.protocol = bpf_htons(l2_proto);
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h_outer.l4hdr.gre.flags = 0;
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break;
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case IPPROTO_UDP:
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flags |= BPF_F_ADJ_ROOM_ENCAP_L4_UDP;
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olen += sizeof(h_outer.l4hdr.udp);
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h_outer.l4hdr.udp.source = __bpf_constant_htons(cfg_udp_src);
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h_outer.l4hdr.udp.dest = __bpf_constant_htons(cfg_udp_dst);
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h_outer.l4hdr.udp.dest = bpf_htons(udp_dst);
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h_outer.l4hdr.udp.check = 0;
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h_outer.l4hdr.udp.len = bpf_htons(bpf_ntohs(iph_inner.tot_len) +
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sizeof(h_outer.l4hdr.udp));
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sizeof(h_outer.l4hdr.udp) +
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l2_len);
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break;
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case IPPROTO_IPIP:
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break;
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@ -107,6 +134,19 @@ static __always_inline int encap_ipv4(struct __sk_buff *skb, __u8 encap_proto)
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return TC_ACT_OK;
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}
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/* add L2 encap (if specified) */
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switch (l2_proto) {
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case ETH_P_MPLS_UC:
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*((__u32 *)((__u8 *)&h_outer + olen)) = mpls_label;
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break;
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case ETH_P_TEB:
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if (bpf_skb_load_bytes(skb, 0, (__u8 *)&h_outer + olen,
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ETH_HLEN))
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return TC_ACT_SHOT;
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break;
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}
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olen += l2_len;
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/* add room between mac and network header */
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if (bpf_skb_adjust_room(skb, olen, BPF_ADJ_ROOM_MAC, flags))
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return TC_ACT_SHOT;
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@ -127,14 +167,16 @@ static __always_inline int encap_ipv4(struct __sk_buff *skb, __u8 encap_proto)
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return TC_ACT_OK;
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}
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static __always_inline int encap_ipv6(struct __sk_buff *skb, __u8 encap_proto)
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static __always_inline int encap_ipv6(struct __sk_buff *skb, __u8 encap_proto,
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__u16 l2_proto)
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{
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__u16 udp_dst = UDP_PORT;
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struct ipv6hdr iph_inner;
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struct v6hdr h_outer;
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struct tcphdr tcph;
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int olen, l2_len;
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__u16 tot_len;
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__u64 flags;
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int olen;
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if (bpf_skb_load_bytes(skb, ETH_HLEN, &iph_inner,
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sizeof(iph_inner)) < 0)
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@ -149,20 +191,34 @@ static __always_inline int encap_ipv6(struct __sk_buff *skb, __u8 encap_proto)
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return TC_ACT_OK;
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olen = sizeof(h_outer.ip);
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l2_len = 0;
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flags = BPF_F_ADJ_ROOM_FIXED_GSO | BPF_F_ADJ_ROOM_ENCAP_L3_IPV6;
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switch (l2_proto) {
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case ETH_P_MPLS_UC:
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l2_len = sizeof(mpls_label);
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udp_dst = MPLS_OVER_UDP_PORT;
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break;
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case ETH_P_TEB:
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l2_len = ETH_HLEN;
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udp_dst = ETH_OVER_UDP_PORT;
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break;
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}
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flags |= BPF_F_ADJ_ROOM_ENCAP_L2(l2_len);
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switch (encap_proto) {
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case IPPROTO_GRE:
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flags |= BPF_F_ADJ_ROOM_ENCAP_L4_GRE;
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olen += sizeof(h_outer.l4hdr.gre);
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h_outer.l4hdr.gre.protocol = bpf_htons(ETH_P_IPV6);
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h_outer.l4hdr.gre.protocol = bpf_htons(l2_proto);
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h_outer.l4hdr.gre.flags = 0;
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break;
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case IPPROTO_UDP:
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flags |= BPF_F_ADJ_ROOM_ENCAP_L4_UDP;
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olen += sizeof(h_outer.l4hdr.udp);
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h_outer.l4hdr.udp.source = __bpf_constant_htons(cfg_udp_src);
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h_outer.l4hdr.udp.dest = __bpf_constant_htons(cfg_udp_dst);
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h_outer.l4hdr.udp.dest = bpf_htons(udp_dst);
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tot_len = bpf_ntohs(iph_inner.payload_len) + sizeof(iph_inner) +
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sizeof(h_outer.l4hdr.udp);
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h_outer.l4hdr.udp.check = 0;
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@ -174,6 +230,19 @@ static __always_inline int encap_ipv6(struct __sk_buff *skb, __u8 encap_proto)
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return TC_ACT_OK;
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}
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/* add L2 encap (if specified) */
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switch (l2_proto) {
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case ETH_P_MPLS_UC:
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*((__u32 *)((__u8 *)&h_outer + olen)) = mpls_label;
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break;
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case ETH_P_TEB:
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if (bpf_skb_load_bytes(skb, 0, (__u8 *)&h_outer + olen,
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ETH_HLEN))
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return TC_ACT_SHOT;
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break;
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}
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olen += l2_len;
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/* add room between mac and network header */
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if (bpf_skb_adjust_room(skb, olen, BPF_ADJ_ROOM_MAC, flags))
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return TC_ACT_SHOT;
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@ -193,56 +262,128 @@ static __always_inline int encap_ipv6(struct __sk_buff *skb, __u8 encap_proto)
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return TC_ACT_OK;
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}
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SEC("encap_ipip")
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int __encap_ipip(struct __sk_buff *skb)
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SEC("encap_ipip_none")
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int __encap_ipip_none(struct __sk_buff *skb)
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{
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if (skb->protocol == __bpf_constant_htons(ETH_P_IP))
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return encap_ipv4(skb, IPPROTO_IPIP);
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return encap_ipv4(skb, IPPROTO_IPIP, ETH_P_IP);
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else
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return TC_ACT_OK;
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}
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SEC("encap_gre")
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int __encap_gre(struct __sk_buff *skb)
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SEC("encap_gre_none")
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int __encap_gre_none(struct __sk_buff *skb)
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{
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if (skb->protocol == __bpf_constant_htons(ETH_P_IP))
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return encap_ipv4(skb, IPPROTO_GRE);
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return encap_ipv4(skb, IPPROTO_GRE, ETH_P_IP);
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else
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return TC_ACT_OK;
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}
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SEC("encap_udp")
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int __encap_udp(struct __sk_buff *skb)
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SEC("encap_gre_mpls")
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int __encap_gre_mpls(struct __sk_buff *skb)
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{
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if (skb->protocol == __bpf_constant_htons(ETH_P_IP))
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return encap_ipv4(skb, IPPROTO_UDP);
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return encap_ipv4(skb, IPPROTO_GRE, ETH_P_MPLS_UC);
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else
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return TC_ACT_OK;
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}
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SEC("encap_ip6tnl")
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int __encap_ip6tnl(struct __sk_buff *skb)
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SEC("encap_gre_eth")
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int __encap_gre_eth(struct __sk_buff *skb)
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{
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if (skb->protocol == __bpf_constant_htons(ETH_P_IPV6))
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return encap_ipv6(skb, IPPROTO_IPV6);
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if (skb->protocol == __bpf_constant_htons(ETH_P_IP))
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return encap_ipv4(skb, IPPROTO_GRE, ETH_P_TEB);
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else
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return TC_ACT_OK;
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}
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SEC("encap_ip6gre")
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int __encap_ip6gre(struct __sk_buff *skb)
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SEC("encap_udp_none")
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int __encap_udp_none(struct __sk_buff *skb)
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{
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if (skb->protocol == __bpf_constant_htons(ETH_P_IPV6))
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return encap_ipv6(skb, IPPROTO_GRE);
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if (skb->protocol == __bpf_constant_htons(ETH_P_IP))
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return encap_ipv4(skb, IPPROTO_UDP, ETH_P_IP);
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else
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return TC_ACT_OK;
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}
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SEC("encap_ip6udp")
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int __encap_ip6udp(struct __sk_buff *skb)
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SEC("encap_udp_mpls")
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int __encap_udp_mpls(struct __sk_buff *skb)
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{
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if (skb->protocol == __bpf_constant_htons(ETH_P_IP))
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return encap_ipv4(skb, IPPROTO_UDP, ETH_P_MPLS_UC);
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else
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return TC_ACT_OK;
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}
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SEC("encap_udp_eth")
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int __encap_udp_eth(struct __sk_buff *skb)
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{
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if (skb->protocol == __bpf_constant_htons(ETH_P_IP))
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return encap_ipv4(skb, IPPROTO_UDP, ETH_P_TEB);
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else
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return TC_ACT_OK;
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}
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SEC("encap_ip6tnl_none")
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int __encap_ip6tnl_none(struct __sk_buff *skb)
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{
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if (skb->protocol == __bpf_constant_htons(ETH_P_IPV6))
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return encap_ipv6(skb, IPPROTO_UDP);
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return encap_ipv6(skb, IPPROTO_IPV6, ETH_P_IPV6);
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else
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return TC_ACT_OK;
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}
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SEC("encap_ip6gre_none")
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int __encap_ip6gre_none(struct __sk_buff *skb)
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{
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if (skb->protocol == __bpf_constant_htons(ETH_P_IPV6))
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return encap_ipv6(skb, IPPROTO_GRE, ETH_P_IPV6);
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else
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return TC_ACT_OK;
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}
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SEC("encap_ip6gre_mpls")
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int __encap_ip6gre_mpls(struct __sk_buff *skb)
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{
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if (skb->protocol == __bpf_constant_htons(ETH_P_IPV6))
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return encap_ipv6(skb, IPPROTO_GRE, ETH_P_MPLS_UC);
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else
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return TC_ACT_OK;
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}
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SEC("encap_ip6gre_eth")
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int __encap_ip6gre_eth(struct __sk_buff *skb)
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{
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if (skb->protocol == __bpf_constant_htons(ETH_P_IPV6))
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return encap_ipv6(skb, IPPROTO_GRE, ETH_P_TEB);
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else
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return TC_ACT_OK;
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}
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SEC("encap_ip6udp_none")
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int __encap_ip6udp_none(struct __sk_buff *skb)
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{
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if (skb->protocol == __bpf_constant_htons(ETH_P_IPV6))
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return encap_ipv6(skb, IPPROTO_UDP, ETH_P_IPV6);
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else
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return TC_ACT_OK;
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}
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SEC("encap_ip6udp_mpls")
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int __encap_ip6udp_mpls(struct __sk_buff *skb)
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{
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if (skb->protocol == __bpf_constant_htons(ETH_P_IPV6))
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return encap_ipv6(skb, IPPROTO_UDP, ETH_P_MPLS_UC);
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else
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return TC_ACT_OK;
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}
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SEC("encap_ip6udp_eth")
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int __encap_ip6udp_eth(struct __sk_buff *skb)
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{
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if (skb->protocol == __bpf_constant_htons(ETH_P_IPV6))
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return encap_ipv6(skb, IPPROTO_UDP, ETH_P_TEB);
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else
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return TC_ACT_OK;
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}
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@ -250,6 +391,8 @@ int __encap_ip6udp(struct __sk_buff *skb)
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static int decap_internal(struct __sk_buff *skb, int off, int len, char proto)
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{
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char buf[sizeof(struct v6hdr)];
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struct gre_hdr greh;
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struct udphdr udph;
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int olen = len;
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switch (proto) {
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@ -258,9 +401,29 @@ static int decap_internal(struct __sk_buff *skb, int off, int len, char proto)
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break;
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case IPPROTO_GRE:
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olen += sizeof(struct gre_hdr);
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if (bpf_skb_load_bytes(skb, off + len, &greh, sizeof(greh)) < 0)
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return TC_ACT_OK;
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switch (bpf_ntohs(greh.protocol)) {
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case ETH_P_MPLS_UC:
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olen += sizeof(mpls_label);
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break;
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case ETH_P_TEB:
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olen += ETH_HLEN;
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break;
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}
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break;
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case IPPROTO_UDP:
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olen += sizeof(struct udphdr);
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if (bpf_skb_load_bytes(skb, off + len, &udph, sizeof(udph)) < 0)
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return TC_ACT_OK;
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switch (bpf_ntohs(udph.dest)) {
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case MPLS_OVER_UDP_PORT:
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olen += sizeof(mpls_label);
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break;
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case ETH_OVER_UDP_PORT:
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olen += ETH_HLEN;
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break;
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}
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break;
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default:
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return TC_ACT_OK;
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@ -17,6 +17,9 @@ readonly ns2_v6=fd::2
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# Must match port used by bpf program
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readonly udpport=5555
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# MPLSoverUDP
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readonly mplsudpport=6635
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readonly mplsproto=137
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readonly infile="$(mktemp)"
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readonly outfile="$(mktemp)"
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@ -41,8 +44,8 @@ setup() {
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# clamp route to reserve room for tunnel headers
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ip -netns "${ns1}" -4 route flush table main
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ip -netns "${ns1}" -6 route flush table main
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ip -netns "${ns1}" -4 route add "${ns2_v4}" mtu 1472 dev veth1
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ip -netns "${ns1}" -6 route add "${ns2_v6}" mtu 1452 dev veth1
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ip -netns "${ns1}" -4 route add "${ns2_v4}" mtu 1458 dev veth1
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ip -netns "${ns1}" -6 route add "${ns2_v6}" mtu 1438 dev veth1
|
||||
|
||||
sleep 1
|
||||
|
||||
@ -89,42 +92,44 @@ set -e
|
||||
# no arguments: automated test, run all
|
||||
if [[ "$#" -eq "0" ]]; then
|
||||
echo "ipip"
|
||||
$0 ipv4 ipip 100
|
||||
$0 ipv4 ipip none 100
|
||||
|
||||
echo "ip6ip6"
|
||||
$0 ipv6 ip6tnl 100
|
||||
$0 ipv6 ip6tnl none 100
|
||||
|
||||
echo "ip gre"
|
||||
$0 ipv4 gre 100
|
||||
for mac in none mpls eth ; do
|
||||
echo "ip gre $mac"
|
||||
$0 ipv4 gre $mac 100
|
||||
|
||||
echo "ip6 gre"
|
||||
$0 ipv6 ip6gre 100
|
||||
echo "ip6 gre $mac"
|
||||
$0 ipv6 ip6gre $mac 100
|
||||
|
||||
echo "ip gre gso"
|
||||
$0 ipv4 gre 2000
|
||||
echo "ip gre $mac gso"
|
||||
$0 ipv4 gre $mac 2000
|
||||
|
||||
echo "ip6 gre gso"
|
||||
$0 ipv6 ip6gre 2000
|
||||
echo "ip6 gre $mac gso"
|
||||
$0 ipv6 ip6gre $mac 2000
|
||||
|
||||
echo "ip udp"
|
||||
$0 ipv4 udp 100
|
||||
echo "ip udp $mac"
|
||||
$0 ipv4 udp $mac 100
|
||||
|
||||
echo "ip6 udp"
|
||||
$0 ipv6 ip6udp 100
|
||||
echo "ip6 udp $mac"
|
||||
$0 ipv6 ip6udp $mac 100
|
||||
|
||||
echo "ip udp gso"
|
||||
$0 ipv4 udp 2000
|
||||
echo "ip udp $mac gso"
|
||||
$0 ipv4 udp $mac 2000
|
||||
|
||||
echo "ip6 udp gso"
|
||||
$0 ipv6 ip6udp 2000
|
||||
echo "ip6 udp $mac gso"
|
||||
$0 ipv6 ip6udp $mac 2000
|
||||
done
|
||||
|
||||
echo "OK. All tests passed"
|
||||
exit 0
|
||||
fi
|
||||
|
||||
if [[ "$#" -ne "3" ]]; then
|
||||
if [[ "$#" -ne "4" ]]; then
|
||||
echo "Usage: $0"
|
||||
echo " or: $0 <ipv4|ipv6> <tuntype> <data_len>"
|
||||
echo " or: $0 <ipv4|ipv6> <tuntype> <none|mpls|eth> <data_len>"
|
||||
exit 1
|
||||
fi
|
||||
|
||||
@ -137,6 +142,8 @@ case "$1" in
|
||||
readonly foumod=fou
|
||||
readonly foutype=ipip
|
||||
readonly fouproto=4
|
||||
readonly fouproto_mpls=${mplsproto}
|
||||
readonly gretaptype=gretap
|
||||
;;
|
||||
"ipv6")
|
||||
readonly addr1="${ns1_v6}"
|
||||
@ -146,6 +153,8 @@ case "$1" in
|
||||
readonly foumod=fou6
|
||||
readonly foutype=ip6tnl
|
||||
readonly fouproto="41 -6"
|
||||
readonly fouproto_mpls="${mplsproto} -6"
|
||||
readonly gretaptype=ip6gretap
|
||||
;;
|
||||
*)
|
||||
echo "unknown arg: $1"
|
||||
@ -154,9 +163,10 @@ case "$1" in
|
||||
esac
|
||||
|
||||
readonly tuntype=$2
|
||||
readonly datalen=$3
|
||||
readonly mac=$3
|
||||
readonly datalen=$4
|
||||
|
||||
echo "encap ${addr1} to ${addr2}, type ${tuntype}, len ${datalen}"
|
||||
echo "encap ${addr1} to ${addr2}, type ${tuntype}, mac ${mac} len ${datalen}"
|
||||
|
||||
trap cleanup EXIT
|
||||
|
||||
@ -173,7 +183,7 @@ verify_data
|
||||
ip netns exec "${ns1}" tc qdisc add dev veth1 clsact
|
||||
ip netns exec "${ns1}" tc filter add dev veth1 egress \
|
||||
bpf direct-action object-file ./test_tc_tunnel.o \
|
||||
section "encap_${tuntype}"
|
||||
section "encap_${tuntype}_${mac}"
|
||||
echo "test bpf encap without decap (expect failure)"
|
||||
server_listen
|
||||
! client_connect
|
||||
@ -184,7 +194,18 @@ if [[ "$tuntype" =~ "udp" ]]; then
|
||||
targs="encap fou encap-sport auto encap-dport $udpport"
|
||||
# fou may be a module; allow this to fail.
|
||||
modprobe "${foumod}" ||true
|
||||
ip netns exec "${ns2}" ip fou add port 5555 ipproto ${fouproto}
|
||||
if [[ "$mac" == "mpls" ]]; then
|
||||
dport=${mplsudpport}
|
||||
dproto=${fouproto_mpls}
|
||||
tmode="mode any ttl 255"
|
||||
else
|
||||
dport=${udpport}
|
||||
dproto=${fouproto}
|
||||
fi
|
||||
ip netns exec "${ns2}" ip fou add port $dport ipproto ${dproto}
|
||||
targs="encap fou encap-sport auto encap-dport $dport"
|
||||
elif [[ "$tuntype" =~ "gre" && "$mac" == "eth" ]]; then
|
||||
ttype=$gretaptype
|
||||
else
|
||||
ttype=$tuntype
|
||||
targs=""
|
||||
@ -194,7 +215,31 @@ fi
|
||||
# server is still running
|
||||
# client can connect again
|
||||
ip netns exec "${ns2}" ip link add name testtun0 type "${ttype}" \
|
||||
remote "${addr1}" local "${addr2}" $targs
|
||||
${tmode} remote "${addr1}" local "${addr2}" $targs
|
||||
|
||||
expect_tun_fail=0
|
||||
|
||||
if [[ "$tuntype" == "ip6udp" && "$mac" == "mpls" ]]; then
|
||||
# No support for MPLS IPv6 fou tunnel; expect failure.
|
||||
expect_tun_fail=1
|
||||
elif [[ "$tuntype" =~ "udp" && "$mac" == "eth" ]]; then
|
||||
# No support for TEB fou tunnel; expect failure.
|
||||
expect_tun_fail=1
|
||||
elif [[ "$tuntype" =~ "gre" && "$mac" == "eth" ]]; then
|
||||
# Share ethernet address between tunnel/veth2 so L2 decap works.
|
||||
ethaddr=$(ip netns exec "${ns2}" ip link show veth2 | \
|
||||
awk '/ether/ { print $2 }')
|
||||
ip netns exec "${ns2}" ip link set testtun0 address $ethaddr
|
||||
elif [[ "$mac" == "mpls" ]]; then
|
||||
modprobe mpls_iptunnel ||true
|
||||
modprobe mpls_gso ||true
|
||||
ip netns exec "${ns2}" sysctl -qw net.mpls.platform_labels=65536
|
||||
ip netns exec "${ns2}" ip -f mpls route add 1000 dev lo
|
||||
ip netns exec "${ns2}" ip link set lo up
|
||||
ip netns exec "${ns2}" sysctl -qw net.mpls.conf.testtun0.input=1
|
||||
ip netns exec "${ns2}" sysctl -qw net.ipv4.conf.lo.rp_filter=0
|
||||
fi
|
||||
|
||||
# Because packets are decapped by the tunnel they arrive on testtun0 from
|
||||
# the IP stack perspective. Ensure reverse path filtering is disabled
|
||||
# otherwise we drop the TCP SYN as arriving on testtun0 instead of the
|
||||
@ -204,16 +249,22 @@ ip netns exec "${ns2}" sysctl -qw net.ipv4.conf.all.rp_filter=0
|
||||
# selected as the max of the "all" and device-specific values.
|
||||
ip netns exec "${ns2}" sysctl -qw net.ipv4.conf.testtun0.rp_filter=0
|
||||
ip netns exec "${ns2}" ip link set dev testtun0 up
|
||||
echo "test bpf encap with tunnel device decap"
|
||||
client_connect
|
||||
verify_data
|
||||
if [[ "$expect_tun_fail" == 1 ]]; then
|
||||
# This tunnel mode is not supported, so we expect failure.
|
||||
echo "test bpf encap with tunnel device decap (expect failure)"
|
||||
! client_connect
|
||||
else
|
||||
echo "test bpf encap with tunnel device decap"
|
||||
client_connect
|
||||
verify_data
|
||||
server_listen
|
||||
fi
|
||||
|
||||
# serverside, use BPF for decap
|
||||
ip netns exec "${ns2}" ip link del dev testtun0
|
||||
ip netns exec "${ns2}" tc qdisc add dev veth2 clsact
|
||||
ip netns exec "${ns2}" tc filter add dev veth2 ingress \
|
||||
bpf direct-action object-file ./test_tc_tunnel.o section decap
|
||||
server_listen
|
||||
echo "test bpf encap with bpf decap"
|
||||
client_connect
|
||||
verify_data
|
||||
|
||||
Loading…
Reference in New Issue
Block a user