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selftests/bpf: Refactor some net macros to bpf_tracing_net.h

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Refactor bpf_iter_ipv6_route.c and bpf_iter_netlink.c
so net macros, originally from various include/linux header
files, are moved to a new header file
bpf_tracing_net.h. The goal is to improve reuse so
networking tracing programs do not need to
copy these macros every time they use them.

Signed-off-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Link: https://lore.kernel.org/bpf/20200623230817.3988962-1-yhs@fb.com
This commit is contained in:
Yonghong Song 2020-06-23 16:08:17 -07:00 committed by Alexei Starovoitov
parent 84544f5637
commit 647b502e3d
3 changed files with 18 additions and 9 deletions
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7
tools/testing/selftests/bpf/progs/bpf_iter_ipv6_route.c
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@ -1,6 +1,7 @@
// SPDX-License-Identifier: GPL-2.0
/* Copyright (c) 2020 Facebook */
#include "bpf_iter.h"
#include "bpf_tracing_net.h"
#include <bpf/bpf_helpers.h>
#include <bpf/bpf_tracing.h>
@ -8,12 +9,6 @@ char _license[] SEC("license") = "GPL";
extern bool CONFIG_IPV6_SUBTREES __kconfig __weak;
#define RTF_GATEWAY 0x0002
#define IFNAMSIZ 16
#define fib_nh_gw_family nh_common.nhc_gw_family
#define fib_nh_gw6 nh_common.nhc_gw.ipv6
#define fib_nh_dev nh_common.nhc_dev
SEC("iter/ipv6_route")
int dump_ipv6_route(struct bpf_iter__ipv6_route *ctx)
{

4
tools/testing/selftests/bpf/progs/bpf_iter_netlink.c
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@ -1,14 +1,12 @@
// SPDX-License-Identifier: GPL-2.0
/* Copyright (c) 2020 Facebook */
#include "bpf_iter.h"
#include "bpf_tracing_net.h"
#include <bpf/bpf_helpers.h>
#include <bpf/bpf_tracing.h>
char _license[] SEC("license") = "GPL";
#define sk_rmem_alloc sk_backlog.rmem_alloc
#define sk_refcnt __sk_common.skc_refcnt
static inline struct inode *SOCK_INODE(struct socket *socket)
{
return &container_of(socket, struct socket_alloc, socket)->vfs_inode;

16
tools/testing/selftests/bpf/progs/bpf_tracing_net.h Normal file
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@ -0,0 +1,16 @@
/* SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause) */
#ifndef __BPF_TRACING_NET_H__
#define __BPF_TRACING_NET_H__
#define IFNAMSIZ 16
#define RTF_GATEWAY 0x0002
#define fib_nh_dev nh_common.nhc_dev
#define fib_nh_gw_family nh_common.nhc_gw_family
#define fib_nh_gw6 nh_common.nhc_gw.ipv6
#define sk_rmem_alloc sk_backlog.rmem_alloc
#define sk_refcnt __sk_common.skc_refcnt
#endif