diff options
Diffstat (limited to 'samples/bpf/sockex1_user.c')
-rw-r--r-- | samples/bpf/sockex1_user.c | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/samples/bpf/sockex1_user.c b/samples/bpf/sockex1_user.c new file mode 100644 index 000000000..93ec01c56 --- /dev/null +++ b/samples/bpf/sockex1_user.c @@ -0,0 +1,51 @@ +// SPDX-License-Identifier: GPL-2.0 +#include <stdio.h> +#include <assert.h> +#include <linux/bpf.h> +#include <bpf/bpf.h> +#include "bpf_load.h" +#include "sock_example.h" +#include <unistd.h> +#include <arpa/inet.h> + +int main(int ac, char **argv) +{ + char filename[256]; + FILE *f; + int i, sock; + + snprintf(filename, sizeof(filename), "%s_kern.o", argv[0]); + + if (load_bpf_file(filename)) { + printf("%s", bpf_log_buf); + return 1; + } + + sock = open_raw_sock("lo"); + + assert(setsockopt(sock, SOL_SOCKET, SO_ATTACH_BPF, prog_fd, + sizeof(prog_fd[0])) == 0); + + f = popen("ping -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[0], &key, &tcp_cnt) == 0); + + key = IPPROTO_UDP; + assert(bpf_map_lookup_elem(map_fd[0], &key, &udp_cnt) == 0); + + key = IPPROTO_ICMP; + assert(bpf_map_lookup_elem(map_fd[0], &key, &icmp_cnt) == 0); + + printf("TCP %lld UDP %lld ICMP %lld bytes\n", + tcp_cnt, udp_cnt, icmp_cnt); + sleep(1); + } + + return 0; +} |