mirror of
https://github.com/Fishwaldo/linux-bl808.git
synced 2025-06-17 20:25:19 +00:00
selftests: bpf: centre kernel bpf objects under new subdir "progs"
At the moment, all kernel bpf objects are listed under BPF_OBJ_FILES. Listing them manually sometimes causing patch conflict when people are adding new testcases simultaneously. It is better to centre all the related source files under a subdir "progs", then auto-generate the object file list. Suggested-by: Alexei Starovoitov <ast@kernel.org> Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: Jiong Wang <jiong.wang@netronome.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org>
This commit is contained in:
parent
4836b4637e
commit
bd4aed0ee7
50 changed files with 5 additions and 21 deletions
60
tools/testing/selftests/bpf/progs/sendmsg6_prog.c
Normal file
60
tools/testing/selftests/bpf/progs/sendmsg6_prog.c
Normal file
|
@ -0,0 +1,60 @@
|
|||
// SPDX-License-Identifier: GPL-2.0
|
||||
// Copyright (c) 2018 Facebook
|
||||
|
||||
#include <linux/stddef.h>
|
||||
#include <linux/bpf.h>
|
||||
#include <sys/socket.h>
|
||||
|
||||
#include "bpf_helpers.h"
|
||||
#include "bpf_endian.h"
|
||||
|
||||
#define SRC_REWRITE_IP6_0 0
|
||||
#define SRC_REWRITE_IP6_1 0
|
||||
#define SRC_REWRITE_IP6_2 0
|
||||
#define SRC_REWRITE_IP6_3 6
|
||||
|
||||
#define DST_REWRITE_IP6_0 0
|
||||
#define DST_REWRITE_IP6_1 0
|
||||
#define DST_REWRITE_IP6_2 0
|
||||
#define DST_REWRITE_IP6_3 1
|
||||
|
||||
#define DST_REWRITE_PORT6 6666
|
||||
|
||||
int _version SEC("version") = 1;
|
||||
|
||||
SEC("cgroup/sendmsg6")
|
||||
int sendmsg_v6_prog(struct bpf_sock_addr *ctx)
|
||||
{
|
||||
if (ctx->type != SOCK_DGRAM)
|
||||
return 0;
|
||||
|
||||
/* Rewrite source. */
|
||||
if (ctx->msg_src_ip6[3] == bpf_htonl(1) ||
|
||||
ctx->msg_src_ip6[3] == bpf_htonl(0)) {
|
||||
ctx->msg_src_ip6[0] = bpf_htonl(SRC_REWRITE_IP6_0);
|
||||
ctx->msg_src_ip6[1] = bpf_htonl(SRC_REWRITE_IP6_1);
|
||||
ctx->msg_src_ip6[2] = bpf_htonl(SRC_REWRITE_IP6_2);
|
||||
ctx->msg_src_ip6[3] = bpf_htonl(SRC_REWRITE_IP6_3);
|
||||
} else {
|
||||
/* Unexpected source. Reject sendmsg. */
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* Rewrite destination. */
|
||||
if ((ctx->user_ip6[0] & 0xFFFF) == bpf_htons(0xFACE) &&
|
||||
ctx->user_ip6[0] >> 16 == bpf_htons(0xB00C)) {
|
||||
ctx->user_ip6[0] = bpf_htonl(DST_REWRITE_IP6_0);
|
||||
ctx->user_ip6[1] = bpf_htonl(DST_REWRITE_IP6_1);
|
||||
ctx->user_ip6[2] = bpf_htonl(DST_REWRITE_IP6_2);
|
||||
ctx->user_ip6[3] = bpf_htonl(DST_REWRITE_IP6_3);
|
||||
|
||||
ctx->user_port = bpf_htons(DST_REWRITE_PORT6);
|
||||
} else {
|
||||
/* Unexpected destination. Reject sendmsg. */
|
||||
return 0;
|
||||
}
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
char _license[] SEC("license") = "GPL";
|
Loading…
Add table
Add a link
Reference in a new issue