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| #include <stdio.h>
| #include <stdlib.h>
| #include <string.h>
| #include <errno.h>
| #include <arpa/inet.h>
|
| #include <libnetfilter_conntrack/libnetfilter_conntrack.h>
| #include <libnetfilter_conntrack/libnetfilter_conntrack_tcp.h>
|
| static int cb(enum nf_conntrack_msg_type type,
| struct nf_conntrack *ct,
| void *data)
| {
| char buf[1024];
|
| nfct_snprintf(buf, sizeof(buf), ct, NFCT_T_UNKNOWN, NFCT_O_DEFAULT, NFCT_OF_SHOW_LAYER3);
| printf("%s\n", buf);
|
| return NFCT_CB_CONTINUE;
| }
|
| int main(void)
| {
| int ret;
| struct nfct_handle *h;
| struct nf_conntrack *ct;
|
| ct = nfct_new();
| if (!ct) {
| perror("nfct_new");
| return 0;
| }
|
| nfct_set_attr_u8(ct, ATTR_L3PROTO, AF_INET);
| nfct_set_attr_u32(ct, ATTR_IPV4_SRC, inet_addr("1.1.1.1"));
| nfct_set_attr_u32(ct, ATTR_IPV4_DST, inet_addr("2.2.2.2"));
|
| nfct_set_attr_u8(ct, ATTR_L4PROTO, IPPROTO_TCP);
| nfct_set_attr_u16(ct, ATTR_PORT_SRC, htons(20));
| nfct_set_attr_u16(ct, ATTR_PORT_DST, htons(10));
|
| h = nfct_open(CONNTRACK, 0);
| if (!h) {
| perror("nfct_open");
| nfct_destroy(ct);
| return -1;
| }
|
| nfct_callback_register(h, NFCT_T_ALL, cb, NULL);
|
| ret = nfct_query(h, NFCT_Q_GET, ct);
|
| printf("TEST: get conntrack ");
| if (ret == -1)
| printf("(%d)(%s)\n", ret, strerror(errno));
| else
| printf("(OK)\n");
|
| nfct_close(h);
|
| nfct_destroy(ct);
|
| ret == -1 ? exit(EXIT_FAILURE) : exit(EXIT_SUCCESS);
| }
|
|
