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>
23int main(
int argc,
char *argv[])
25 struct mnl_socket *nl;
26 char buf[MNL_SOCKET_BUFFER_SIZE];
27 struct mnl_nlmsg_batch *batch;
29 uint32_t portid, seq, family;
31 struct nftnl_set_elem *e;
36 fprintf(stderr,
"%s <family> <table> <set>\n", argv[0]);
40 s = nftnl_set_alloc();
47 if (strcmp(argv[1],
"ip") == 0)
48 family = NFPROTO_IPV4;
49 else if (strcmp(argv[1],
"ip6") == 0)
50 family = NFPROTO_IPV6;
51 else if (strcmp(argv[1],
"inet") == 0)
52 family = NFPROTO_INET;
53 else if (strcmp(argv[1],
"bridge") == 0)
54 family = NFPROTO_BRIDGE;
55 else if (strcmp(argv[1],
"arp") == 0)
58 fprintf(stderr,
"Unknown family: ip, ip6, inet, bridge, arp\n");
62 nftnl_set_set_str(s, NFTNL_SET_TABLE, argv[2]);
63 nftnl_set_set_str(s, NFTNL_SET_NAME, argv[3]);
66 e = nftnl_set_elem_alloc();
73 nftnl_set_elem_set(e, NFTNL_SET_ELEM_KEY, &data,
sizeof(data));
74 nftnl_set_elem_add(s, e);
76 e = nftnl_set_elem_alloc();
82 nftnl_set_elem_set(e, NFTNL_SET_ELEM_KEY, &data,
sizeof(data));
83 nftnl_set_elem_add(s, e);
85 batch = mnl_nlmsg_batch_start(buf,
sizeof(buf));
87 nftnl_batch_begin(mnl_nlmsg_batch_current(batch), seq++);
88 mnl_nlmsg_batch_next(batch);
90 nlh = nftnl_nlmsg_build_hdr(mnl_nlmsg_batch_current(batch),
91 NFT_MSG_NEWSETELEM, family,
92 NLM_F_CREATE | NLM_F_EXCL | NLM_F_ACK,
94 nftnl_set_elems_nlmsg_build_payload(nlh, s);
96 mnl_nlmsg_batch_next(batch);
98 nftnl_batch_end(mnl_nlmsg_batch_current(batch), seq++);
99 mnl_nlmsg_batch_next(batch);
101 nl = mnl_socket_open(NETLINK_NETFILTER);
103 perror(
"mnl_socket_open");
107 if (mnl_socket_bind(nl, 0, MNL_SOCKET_AUTOPID) < 0) {
108 perror(
"mnl_socket_bind");
111 portid = mnl_socket_get_portid(nl);
113 if (mnl_socket_sendto(nl, mnl_nlmsg_batch_head(batch),
114 mnl_nlmsg_batch_size(batch)) < 0) {
115 perror(
"mnl_socket_send");
119 mnl_nlmsg_batch_stop(batch);
121 ret = mnl_socket_recvfrom(nl, buf,
sizeof(buf));
123 ret = mnl_cb_run(buf, ret, 0, portid, NULL, NULL);
126 ret = mnl_socket_recvfrom(nl, buf,
sizeof(buf));
132 mnl_socket_close(nl);