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/table.h>
19static struct nftnl_table *table_del_parse(
int argc,
char *argv[])
24 if (strcmp(argv[1],
"ip") == 0)
25 family = NFPROTO_IPV4;
26 else if (strcmp(argv[1],
"ip6") == 0)
27 family = NFPROTO_IPV6;
28 else if (strcmp(argv[1],
"inet") == 0)
29 family = NFPROTO_INET;
30 else if (strcmp(argv[1],
"bridge") == 0)
31 family = NFPROTO_BRIDGE;
32 else if (strcmp(argv[1],
"arp") == 0)
35 fprintf(stderr,
"Unknown family: ip, ip6, inet, bridge, arp\n");
39 t = nftnl_table_alloc();
45 nftnl_table_set_str(t, NFTNL_TABLE_NAME, argv[2]);
46 nftnl_table_set_u32(t, NFTNL_TABLE_FAMILY, family);
51int main(
int argc,
char *argv[])
53 struct mnl_socket *nl;
54 char buf[MNL_SOCKET_BUFFER_SIZE];
56 uint32_t portid, seq, table_seq, family;
58 struct mnl_nlmsg_batch *batch;
62 fprintf(stderr,
"%s <family> <name>\n", argv[0]);
66 t = table_del_parse(argc, argv);
71 batch = mnl_nlmsg_batch_start(buf,
sizeof(buf));
73 nftnl_batch_begin(mnl_nlmsg_batch_current(batch), seq++);
74 mnl_nlmsg_batch_next(batch);
77 family = nftnl_table_get_u32(t, NFTNL_TABLE_FAMILY);
78 nlh = nftnl_nlmsg_build_hdr(mnl_nlmsg_batch_current(batch),
79 NFT_MSG_DELTABLE, family,
81 nftnl_table_nlmsg_build_payload(nlh, t);
82 mnl_nlmsg_batch_next(batch);
85 nftnl_batch_end(mnl_nlmsg_batch_current(batch), seq++);
86 mnl_nlmsg_batch_next(batch);
88 nl = mnl_socket_open(NETLINK_NETFILTER);
90 perror(
"mnl_socket_open");
94 if (mnl_socket_bind(nl, 0, MNL_SOCKET_AUTOPID) < 0) {
95 perror(
"mnl_socket_bind");
98 portid = mnl_socket_get_portid(nl);
100 if (mnl_socket_sendto(nl, mnl_nlmsg_batch_head(batch),
101 mnl_nlmsg_batch_size(batch)) < 0) {
102 perror(
"mnl_socket_send");
106 mnl_nlmsg_batch_stop(batch);
108 ret = mnl_socket_recvfrom(nl, buf,
sizeof(buf));
110 ret = mnl_cb_run(buf, ret, table_seq, portid, NULL, NULL);
113 ret = mnl_socket_recvfrom(nl, buf,
sizeof(buf));
119 mnl_socket_close(nl);