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];
28 struct mnl_nlmsg_batch *batch;
29 uint32_t portid, seq, family;
30 struct nftnl_set *t = NULL;
34 fprintf(stderr,
"%s <family> <table> <set>\n", argv[0]);
38 t = nftnl_set_alloc();
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],
"inet") == 0)
50 family = NFPROTO_INET;
51 else if (strcmp(argv[1],
"bridge") == 0)
52 family = NFPROTO_BRIDGE;
53 else if (strcmp(argv[1],
"arp") == 0)
56 fprintf(stderr,
"Unknown family: ip, ip6, inet, bridge, arp\n");
60 batch = mnl_nlmsg_batch_start(buf,
sizeof(buf));
62 nftnl_batch_begin(mnl_nlmsg_batch_current(batch), seq++);
63 mnl_nlmsg_batch_next(batch);
65 nlh = nftnl_nlmsg_build_hdr(mnl_nlmsg_batch_current(batch),
66 NFT_MSG_DELSET, family, NLM_F_ACK, seq);
67 nftnl_set_set_str(t, NFTNL_SET_TABLE, argv[2]);
68 nftnl_set_set_str(t, NFTNL_SET_NAME, argv[3]);
70 nftnl_set_nlmsg_build_payload(nlh, t);
72 mnl_nlmsg_batch_next(batch);
74 nftnl_batch_end(mnl_nlmsg_batch_current(batch), seq++);
75 mnl_nlmsg_batch_next(batch);
77 nl = mnl_socket_open(NETLINK_NETFILTER);
79 perror(
"mnl_socket_open");
83 if (mnl_socket_bind(nl, 0, MNL_SOCKET_AUTOPID) < 0) {
84 perror(
"mnl_socket_bind");
87 portid = mnl_socket_get_portid(nl);
89 ret = mnl_socket_sendto(nl, mnl_nlmsg_batch_head(batch),
90 mnl_nlmsg_batch_size(batch));
92 perror(
"mnl_socket_send");
96 mnl_nlmsg_batch_stop(batch);
98 ret = mnl_socket_recvfrom(nl, buf,
sizeof(buf));
100 perror(
"mnl_socket_recvfrom");
104 ret = mnl_cb_run(buf, ret, 0, portid, NULL, NULL);
106 perror(
"mnl_cb_run");
109 mnl_socket_close(nl);