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 cb(enum nf_conntrack_msg_type type, 9 struct nf_conntrack *ct, 10 void *data) 11 { 12 char buf[1024]; 13 14 nfct_snprintf(buf, sizeof(buf), ct, NFCT_T_UNKNOWN, NFCT_O_DEFAULT, NFCT_OF_SHOW_LAYER3 | NFCT_OF_TIMESTAMP); 15 printf("%s\n", buf); 16 17 return NFCT_CB_CONTINUE; 18 } 19 20 int main(void) 21 { 22 int ret; 23 uint32_t family = AF_INET; 24 struct nfct_handle *h; 25 26 h = nfct_open(CONNTRACK, 0); 27 if (!h) { 28 perror("nfct_open"); 29 return -1; 30 } 31 32 nfct_callback_register(h, NFCT_T_ALL, cb, NULL); 33 ret = nfct_query(h, NFCT_Q_DUMP, &family); 34 35 printf("TEST: get conntrack "); 36 if (ret == -1) 37 printf("(%d)(%s)\n", ret, strerror(errno)); 38 else 39 printf("(OK)\n"); 40 41 nfct_close(h); 42 43 ret == -1 ? exit(EXIT_FAILURE) : exit(EXIT_SUCCESS); 44 } 45
