1 #include <stdio.h> 2 #include <stdlib.h> 3 #include <string.h> 4 #include <errno.h> 5 6 #include <libnetfilter_conntrack/libnetfilter_conntrack.h> 7 8 static int event_cb(enum nf_conntrack_msg_type type, 9 struct nf_conntrack *ct, 10 void *data) 11 { 12 static int n = 0; 13 char buf[1024]; 14 15 nfct_snprintf(buf, sizeof(buf), ct, type, NFCT_O_XML, NFCT_OF_TIME | NFCT_OF_TIMESTAMP); 16 printf("%s\n", buf); 17 18 if (++n == 10) 19 return NFCT_CB_STOP; 20 21 return NFCT_CB_CONTINUE; 22 } 23 24 int main(void) 25 { 26 int ret; 27 struct nfct_handle *h; 28 29 h = nfct_open(CONNTRACK, NFCT_ALL_CT_GROUPS); 30 if (!h) { 31 perror("nfct_open"); 32 return 0; 33 } 34 35 nfct_callback_register(h, NFCT_T_ALL, event_cb, NULL); 36 37 printf("TEST: waiting for 10 events...\n"); 38 39 ret = nfct_catch(h); 40 41 printf("TEST: conntrack events "); 42 if (ret == -1) 43 printf("(%d)(%s)\n", ret, strerror(errno)); 44 else 45 printf("(OK)\n"); 46 47 nfct_close(h); 48 49 ret == -1 ? exit(EXIT_FAILURE) : exit(EXIT_SUCCESS); 50 } 51
