mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2025-01-11 00:04:33 +08:00
3e689141e6
Fix all selftests to include libbpf header files with the bpf/ prefix, to
be consistent with external users of the library. Also ensure that all
includes of exported libbpf header files (those that are exported on 'make
install' of the library) use bracketed includes instead of quoted.
To not break the build, keep the old include path until everything has been
changed to the new one; a subsequent patch will remove that.
Fixes: 6910d7d386 ("selftests/bpf: Ensure bpf_helper_defs.h are taken from selftests dir")
Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Link: https://lore.kernel.org/bpf/157952560568.1683545.9649335788846513446.stgit@toke.dk
71 lines
1.3 KiB
C
71 lines
1.3 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
// Copyright (c) 2018 Facebook
|
|
|
|
#include <linux/bpf.h>
|
|
#include <sys/socket.h>
|
|
|
|
#include <bpf/bpf_helpers.h>
|
|
#include <bpf/bpf_endian.h>
|
|
|
|
struct socket_cookie {
|
|
__u64 cookie_key;
|
|
__u32 cookie_value;
|
|
};
|
|
|
|
struct {
|
|
__uint(type, BPF_MAP_TYPE_SK_STORAGE);
|
|
__uint(map_flags, BPF_F_NO_PREALLOC);
|
|
__type(key, int);
|
|
__type(value, struct socket_cookie);
|
|
} socket_cookies SEC(".maps");
|
|
|
|
SEC("cgroup/connect6")
|
|
int set_cookie(struct bpf_sock_addr *ctx)
|
|
{
|
|
struct socket_cookie *p;
|
|
|
|
if (ctx->family != AF_INET6 || ctx->user_family != AF_INET6)
|
|
return 1;
|
|
|
|
p = bpf_sk_storage_get(&socket_cookies, ctx->sk, 0,
|
|
BPF_SK_STORAGE_GET_F_CREATE);
|
|
if (!p)
|
|
return 1;
|
|
|
|
p->cookie_value = 0xFF;
|
|
p->cookie_key = bpf_get_socket_cookie(ctx);
|
|
|
|
return 1;
|
|
}
|
|
|
|
SEC("sockops")
|
|
int update_cookie(struct bpf_sock_ops *ctx)
|
|
{
|
|
struct bpf_sock *sk;
|
|
struct socket_cookie *p;
|
|
|
|
if (ctx->family != AF_INET6)
|
|
return 1;
|
|
|
|
if (ctx->op != BPF_SOCK_OPS_TCP_CONNECT_CB)
|
|
return 1;
|
|
|
|
if (!ctx->sk)
|
|
return 1;
|
|
|
|
p = bpf_sk_storage_get(&socket_cookies, ctx->sk, 0, 0);
|
|
if (!p)
|
|
return 1;
|
|
|
|
if (p->cookie_key != bpf_get_socket_cookie(ctx))
|
|
return 1;
|
|
|
|
p->cookie_value = (ctx->local_port << 8) | p->cookie_value;
|
|
|
|
return 1;
|
|
}
|
|
|
|
int _version SEC("version") = 1;
|
|
|
|
char _license[] SEC("license") = "GPL";
|