diff options
Diffstat (limited to 'samples/bpf/sockex2_user.c')
| -rw-r--r-- | samples/bpf/sockex2_user.c | 37 |
1 files changed, 23 insertions, 14 deletions
diff --git a/samples/bpf/sockex2_user.c b/samples/bpf/sockex2_user.c index 0e0207c90841..2c18471336f0 100644 --- a/samples/bpf/sockex2_user.c +++ b/samples/bpf/sockex2_user.c @@ -1,12 +1,12 @@ +// SPDX-License-Identifier: GPL-2.0 #include <stdio.h> #include <assert.h> #include <linux/bpf.h> -#include "libbpf.h" -#include "bpf_load.h" +#include <bpf/bpf.h> +#include <bpf/libbpf.h> #include "sock_example.h" #include <unistd.h> #include <arpa/inet.h> -#include <sys/resource.h> struct pair { __u64 packets; @@ -15,33 +15,42 @@ struct pair { int main(int ac, char **argv) { - struct rlimit r = {RLIM_INFINITY, RLIM_INFINITY}; + struct bpf_program *prog; + struct bpf_object *obj; + int map_fd, prog_fd; char filename[256]; + int i, sock, err; FILE *f; - int i, sock; snprintf(filename, sizeof(filename), "%s_kern.o", argv[0]); - setrlimit(RLIMIT_MEMLOCK, &r); + 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); - if (load_bpf_file(filename)) { - printf("%s", bpf_log_buf); + 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, "hash_map"); sock = open_raw_sock("lo"); - assert(setsockopt(sock, SOL_SOCKET, SO_ATTACH_BPF, prog_fd, - sizeof(prog_fd[0])) == 0); + assert(setsockopt(sock, SOL_SOCKET, SO_ATTACH_BPF, &prog_fd, + sizeof(prog_fd)) == 0); - f = popen("ping -c5 localhost", "r"); + f = popen("ping -4 -c5 localhost", "r"); (void) f; for (i = 0; i < 5; i++) { int key = 0, next_key; struct pair value; - while (bpf_map_get_next_key(map_fd[0], &key, &next_key) == 0) { - bpf_map_lookup_elem(map_fd[0], &next_key, &value); + while (bpf_map_get_next_key(map_fd, &key, &next_key) == 0) { + bpf_map_lookup_elem(map_fd, &next_key, &value); printf("ip %s bytes %lld packets %lld\n", inet_ntoa((struct in_addr){htonl(next_key)}), value.bytes, value.packets); |
