15 #include <netinet/in.h>
17 #include <linux/netfilter.h>
18 #include <linux/netfilter/nf_tables.h>
20 #include <libmnl/libmnl.h>
21 #include <libnftnl/set.h>
23 int main(
int argc,
char *argv[])
25 struct mnl_socket *nl;
26 char buf[MNL_SOCKET_BUFFER_SIZE];
28 uint32_t portid, seq, family, data;
30 struct nft_set_elem *e;
34 fprintf(stderr,
"%s <family> <table> <set>\n", argv[0]);
45 if (strcmp(argv[1],
"ip") == 0)
46 family = NFPROTO_IPV4;
47 else if (strcmp(argv[1],
"ip6") == 0)
48 family = NFPROTO_IPV6;
49 else if (strcmp(argv[1],
"bridge") == 0)
50 family = NFPROTO_BRIDGE;
51 else if (strcmp(argv[1],
"arp") == 0)
54 fprintf(stderr,
"Unknown family: ip, ip6, bridge, arp\n");
58 nft_set_attr_set(s, NFT_SET_ATTR_TABLE, argv[2]);
59 nft_set_attr_set(s, NFT_SET_ATTR_NAME, argv[3]);
62 e = nft_set_elem_alloc();
69 nft_set_elem_attr_set(e, NFT_SET_ELEM_ATTR_KEY, &data,
sizeof(data));
70 nft_set_elem_add(s, e);
72 e = nft_set_elem_alloc();
78 nft_set_elem_attr_set(e, NFT_SET_ELEM_ATTR_KEY, &data,
sizeof(data));
79 nft_set_elem_add(s, e);
81 nlh = nft_set_nlmsg_build_hdr(buf, NFT_MSG_DELSETELEM, family,
83 nft_set_elems_nlmsg_build_payload(nlh, s);
86 nl = mnl_socket_open(NETLINK_NETFILTER);
88 perror(
"mnl_socket_open");
92 if (mnl_socket_bind(nl, 0, MNL_SOCKET_AUTOPID) < 0) {
93 perror(
"mnl_socket_bind");
96 portid = mnl_socket_get_portid(nl);
98 if (mnl_socket_sendto(nl, nlh, nlh->nlmsg_len) < 0) {
99 perror(
"mnl_socket_send");
103 ret = mnl_socket_recvfrom(nl, buf,
sizeof(buf));
105 ret = mnl_cb_run(buf, ret, seq, portid, NULL, NULL);
108 ret = mnl_socket_recvfrom(nl, buf,
sizeof(buf));
114 mnl_socket_close(nl);