diff options
Diffstat (limited to 'tools/testing/selftests/bpf/sendmsg4_prog.c')
| -rw-r--r-- | tools/testing/selftests/bpf/sendmsg4_prog.c | 49 |
1 files changed, 0 insertions, 49 deletions
diff --git a/tools/testing/selftests/bpf/sendmsg4_prog.c b/tools/testing/selftests/bpf/sendmsg4_prog.c deleted file mode 100644 index a91536b1c47e..000000000000 --- a/tools/testing/selftests/bpf/sendmsg4_prog.c +++ /dev/null @@ -1,49 +0,0 @@ -// 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 SRC1_IP4 0xAC100001U /* 172.16.0.1 */ -#define SRC2_IP4 0x00000000U -#define SRC_REWRITE_IP4 0x7f000004U -#define DST_IP4 0xC0A801FEU /* 192.168.1.254 */ -#define DST_REWRITE_IP4 0x7f000001U -#define DST_PORT 4040 -#define DST_REWRITE_PORT4 4444 - -int _version SEC("version") = 1; - -SEC("cgroup/sendmsg4") -int sendmsg_v4_prog(struct bpf_sock_addr *ctx) -{ - if (ctx->type != SOCK_DGRAM) - return 0; - - /* Rewrite source. */ - if (ctx->msg_src_ip4 == bpf_htonl(SRC1_IP4) || - ctx->msg_src_ip4 == bpf_htonl(SRC2_IP4)) { - ctx->msg_src_ip4 = bpf_htonl(SRC_REWRITE_IP4); - } else { - /* Unexpected source. Reject sendmsg. */ - return 0; - } - - /* Rewrite destination. */ - if ((ctx->user_ip4 >> 24) == (bpf_htonl(DST_IP4) >> 24) && - ctx->user_port == bpf_htons(DST_PORT)) { - ctx->user_ip4 = bpf_htonl(DST_REWRITE_IP4); - ctx->user_port = bpf_htons(DST_REWRITE_PORT4); - } else { - /* Unexpected source. Reject sendmsg. */ - return 0; - } - - return 1; -} - -char _license[] SEC("license") = "GPL"; |