ct_echo_event.c

#include <assert.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <netinet/in.h>

#include <libmnl/libmnl.h>

#include "nssocket.h"

static void udp_echo(const struct mnl_socket *nl,
                     const char *pre, const char *post)
{
        uint8_t proto = IPPROTO_UDP;

        sync_fifo(pre);
        timeout.tv_sec = INIT_TIMEOUT;
        handle_qacb(nl, true, cb_udp_new, &proto);
        handle_qacb(nl, true, cb_udp_update, &proto);
        handle_qacb(nl, true, cb_udp_destroy, &proto);
        handle_qacb(nl, false, NULL, NULL);
        sync_fifo(post);
}

static void icmp_echo(const struct mnl_socket *nl,
                      const char *pre, const char *post)
{
        uint8_t proto = IPPROTO_ICMP;

        sync_fifo(pre);
        timeout.tv_sec = INIT_TIMEOUT;
        handle_qacb(nl, true, cb_icmp_new, &proto);
        handle_qacb(nl, true, cb_icmp_update, &proto);
        handle_qacb(nl, true, cb_icmp_destroy, &proto);
        handle_qacb(nl, false, NULL, NULL);
        sync_fifo(post);
}

int main(int argc, char *argv[])
{
        struct mnl_socket *nl;
        char *pre, *post;

        if (argc != 4) {
                fprintf(stderr, "usage: %s <netns> <pre_fifo> <post_fifo>\n", argv[0]);
                exit(EXIT_FAILURE);
        }
        pre = argv[2];
        post = argv[3];

        nl = mnl_event_nssocket(argv[1]);
        if (nl == NULL) {
                perror("init_mnl_socket");
                exit(EXIT_FAILURE);
        }

        tcp_echo(nl, pre, post);
        udp_echo(nl, pre, post);
        icmp_echo(nl, pre, post);

        return fini_nssocket();
}