On 11/22/23 1:20 PM, Daniel Xu wrote:
vmlinux.h declarations are more ergnomic, especially when working with
kfuncs. The uapi headers are often incomplete for kfunc definitions.
Co-developed-by: Antony Antony <antony.ant...@secunet.com>
Signed-off-by: Antony Antony <antony.ant...@secunet.com>
Signed-off-by: Daniel Xu <d...@dxuuu.xyz>
---
.../selftests/bpf/progs/bpf_tracing_net.h | 1 +
.../selftests/bpf/progs/test_tunnel_kern.c | 48 ++++---------------
2 files changed, 9 insertions(+), 40 deletions(-)
diff --git a/tools/testing/selftests/bpf/progs/bpf_tracing_net.h
b/tools/testing/selftests/bpf/progs/bpf_tracing_net.h
index 0b793a102791..1bdc680b0e0e 100644
--- a/tools/testing/selftests/bpf/progs/bpf_tracing_net.h
+++ b/tools/testing/selftests/bpf/progs/bpf_tracing_net.h
@@ -26,6 +26,7 @@
#define IPV6_AUTOFLOWLABEL 70
#define TC_ACT_UNSPEC (-1)
+#define TC_ACT_OK 0
#define TC_ACT_SHOT 2
#define SOL_TCP 6
diff --git a/tools/testing/selftests/bpf/progs/test_tunnel_kern.c
b/tools/testing/selftests/bpf/progs/test_tunnel_kern.c
index f66af753bbbb..3065a716544d 100644
--- a/tools/testing/selftests/bpf/progs/test_tunnel_kern.c
+++ b/tools/testing/selftests/bpf/progs/test_tunnel_kern.c
@@ -6,62 +6,30 @@
* modify it under the terms of version 2 of the GNU General Public
* License as published by the Free Software Foundation.
*/
-#include <stddef.h>
-#include <string.h>
-#include <arpa/inet.h>
-#include <linux/bpf.h>
-#include <linux/if_ether.h>
-#include <linux/if_packet.h>
-#include <linux/if_tunnel.h>
-#include <linux/ip.h>
-#include <linux/ipv6.h>
-#include <linux/icmp.h>
-#include <linux/types.h>
-#include <linux/socket.h>
-#include <linux/pkt_cls.h>
-#include <linux/erspan.h>
-#include <linux/udp.h>
+#include "vmlinux.h"
#include <bpf/bpf_helpers.h>
#include <bpf/bpf_endian.h>
+#include "bpf_kfuncs.h"
+#include "bpf_tracing_net.h"
#define log_err(__ret) bpf_printk("ERROR line:%d ret:%d\n", __LINE__, __ret)
-#define VXLAN_UDP_PORT 4789
+#define VXLAN_UDP_PORT 4789
+#define ETH_P_IP 0x0800
+#define PACKET_HOST 0
+#define TUNNEL_CSUM bpf_htons(0x01)
+#define TUNNEL_KEY bpf_htons(0x04)
/* Only IPv4 address assigned to veth1.
* 172.16.1.200
*/
#define ASSIGNED_ADDR_VETH1 0xac1001c8
-struct geneve_opt {
- __be16 opt_class;
- __u8 type;
- __u8 length:5;
- __u8 r3:1;
- __u8 r2:1;
- __u8 r1:1;
- __u8 opt_data[8]; /* hard-coded to 8 byte */
-};
-
struct vxlanhdr {
__be32 vx_flags;
__be32 vx_vni;
} __attribute__((packed));
In my particular setup, I have struct vxlanhdr defined in vmlinux.h so
I hit a compilation failure.
-struct vxlan_metadata {
- __u32 gbp;
-};
-
-struct bpf_fou_encap {
- __be16 sport;
- __be16 dport;
-};
-
-enum bpf_fou_encap_type {
- FOU_BPF_ENCAP_FOU,
- FOU_BPF_ENCAP_GUE,
-};
-
int bpf_skb_set_fou_encap(struct __sk_buff *skb_ctx,
struct bpf_fou_encap *encap, int type) __ksym;
int bpf_skb_get_fou_encap(struct __sk_buff *skb_ctx,
