| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <errno.h> |
| |
| #include <libnetfilter_conntrack/libnetfilter_conntrack.h> |
| |
| static int n = 0; |
| |
| static int |
| ct_event_cb(enum nf_conntrack_msg_type type,struct nf_conntrack *ct, void *data) |
| { |
| char buf[1024]; |
| |
| nfct_snprintf(buf, sizeof(buf), ct, type, NFCT_O_PLAIN, NFCT_OF_TIME); |
| printf("[CT] %s\n", buf); |
| |
| if (++n == 20) |
| return NFCT_CB_STOP; |
| |
| return NFCT_CB_CONTINUE; |
| } |
| |
| static int |
| exp_event_cb(enum nf_conntrack_msg_type type,struct nf_expect *exp, void *data) |
| { |
| char buf[1024]; |
| |
| nfexp_snprintf(buf, 1024, exp, type, NFCT_O_DEFAULT, 0); |
| printf("[EXP] %s\n", buf); |
| |
| if (++n == 20) |
| return NFCT_CB_STOP; |
| |
| return NFCT_CB_CONTINUE; |
| } |
| |
| int main(void) |
| { |
| int ret = 0; |
| struct nfct_handle *h; |
| |
| h = nfct_open(NFNL_SUBSYS_NONE, NF_NETLINK_CONNTRACK_EXP_NEW | |
| NF_NETLINK_CONNTRACK_EXP_UPDATE | |
| NF_NETLINK_CONNTRACK_EXP_DESTROY | |
| NF_NETLINK_CONNTRACK_NEW | |
| NF_NETLINK_CONNTRACK_UPDATE | |
| NF_NETLINK_CONNTRACK_DESTROY); |
| if (h == NULL) { |
| perror("nfct_open"); |
| return -1; |
| } |
| |
| nfexp_callback_register(h, NFCT_T_ALL, exp_event_cb, NULL); |
| nfct_callback_register(h, NFCT_T_ALL, ct_event_cb, NULL); |
| |
| printf("TEST: waiting for 20 expectation events...\n"); |
| |
| /* we may use nfexp_catch() instead, it would also work. */ |
| ret = nfct_catch(h); |
| |
| printf("TEST: expectation events "); |
| if (ret == -1) |
| printf("(%d)(%s)\n", ret, strerror(errno)); |
| else |
| printf("(OK)\n"); |
| |
| nfct_close(h); |
| |
| ret == -1 ? exit(EXIT_FAILURE) : exit(EXIT_SUCCESS); |
| } |