11#include <netinet/in.h>
13#include <linux/netfilter.h>
14#include <linux/netfilter/nf_tables.h>
16#include <libmnl/libmnl.h>
17#include <libnftnl/set.h>
19int main(
int argc,
char *argv[])
21 struct mnl_socket *nl;
22 char buf[MNL_SOCKET_BUFFER_SIZE];
24 struct mnl_nlmsg_batch *batch;
25 uint32_t portid, seq, family;
26 struct nftnl_set *t = NULL;
30 fprintf(stderr,
"%s <family> <table> <set>\n", argv[0]);
34 t = nftnl_set_alloc();
41 if (strcmp(argv[1],
"ip") == 0)
42 family = NFPROTO_IPV4;
43 else if (strcmp(argv[1],
"ip6") == 0)
44 family = NFPROTO_IPV6;
45 else if (strcmp(argv[1],
"inet") == 0)
46 family = NFPROTO_INET;
47 else if (strcmp(argv[1],
"bridge") == 0)
48 family = NFPROTO_BRIDGE;
49 else if (strcmp(argv[1],
"arp") == 0)
52 fprintf(stderr,
"Unknown family: ip, ip6, inet, bridge, arp\n");
56 batch = mnl_nlmsg_batch_start(buf,
sizeof(buf));
58 nftnl_batch_begin(mnl_nlmsg_batch_current(batch), seq++);
59 mnl_nlmsg_batch_next(batch);
61 nlh = nftnl_nlmsg_build_hdr(mnl_nlmsg_batch_current(batch),
62 NFT_MSG_DELSET, family, NLM_F_ACK, seq);
63 nftnl_set_set_str(t, NFTNL_SET_TABLE, argv[2]);
64 nftnl_set_set_str(t, NFTNL_SET_NAME, argv[3]);
66 nftnl_set_nlmsg_build_payload(nlh, t);
68 mnl_nlmsg_batch_next(batch);
70 nftnl_batch_end(mnl_nlmsg_batch_current(batch), seq++);
71 mnl_nlmsg_batch_next(batch);
73 nl = mnl_socket_open(NETLINK_NETFILTER);
75 perror(
"mnl_socket_open");
79 if (mnl_socket_bind(nl, 0, MNL_SOCKET_AUTOPID) < 0) {
80 perror(
"mnl_socket_bind");
83 portid = mnl_socket_get_portid(nl);
85 ret = mnl_socket_sendto(nl, mnl_nlmsg_batch_head(batch),
86 mnl_nlmsg_batch_size(batch));
88 perror(
"mnl_socket_send");
92 mnl_nlmsg_batch_stop(batch);
94 ret = mnl_socket_recvfrom(nl, buf,
sizeof(buf));
96 perror(
"mnl_socket_recvfrom");
100 ret = mnl_cb_run(buf, ret, 0, portid, NULL, NULL);
102 perror(
"mnl_cb_run");
105 mnl_socket_close(nl);