From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:49:45 +0200 Subject: Adding upstream version 6.1.76. Signed-off-by: Daniel Baumann --- samples/bpf/sockex1_user.c | 63 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 63 insertions(+) create mode 100644 samples/bpf/sockex1_user.c (limited to 'samples/bpf/sockex1_user.c') diff --git a/samples/bpf/sockex1_user.c b/samples/bpf/sockex1_user.c new file mode 100644 index 000000000..9e8d39e24 --- /dev/null +++ b/samples/bpf/sockex1_user.c @@ -0,0 +1,63 @@ +// SPDX-License-Identifier: GPL-2.0 +#include +#include +#include +#include +#include +#include "sock_example.h" +#include +#include + +int main(int ac, char **argv) +{ + struct bpf_object *obj; + struct bpf_program *prog; + int map_fd, prog_fd; + char filename[256]; + int i, sock, err; + FILE *f; + + snprintf(filename, sizeof(filename), "%s_kern.o", argv[0]); + + obj = bpf_object__open_file(filename, NULL); + if (libbpf_get_error(obj)) + return 1; + + prog = bpf_object__next_program(obj, NULL); + bpf_program__set_type(prog, BPF_PROG_TYPE_SOCKET_FILTER); + + err = bpf_object__load(obj); + if (err) + return 1; + + prog_fd = bpf_program__fd(prog); + map_fd = bpf_object__find_map_fd_by_name(obj, "my_map"); + + sock = open_raw_sock("lo"); + + assert(setsockopt(sock, SOL_SOCKET, SO_ATTACH_BPF, &prog_fd, + sizeof(prog_fd)) == 0); + + f = popen("ping -4 -c5 localhost", "r"); + (void) f; + + for (i = 0; i < 5; i++) { + long long tcp_cnt, udp_cnt, icmp_cnt; + int key; + + key = IPPROTO_TCP; + assert(bpf_map_lookup_elem(map_fd, &key, &tcp_cnt) == 0); + + key = IPPROTO_UDP; + assert(bpf_map_lookup_elem(map_fd, &key, &udp_cnt) == 0); + + key = IPPROTO_ICMP; + assert(bpf_map_lookup_elem(map_fd, &key, &icmp_cnt) == 0); + + printf("TCP %lld UDP %lld ICMP %lld bytes\n", + tcp_cnt, udp_cnt, icmp_cnt); + sleep(1); + } + + return 0; +} -- cgit v1.2.3