4 #include <netinet/in.h> 6 #include <linux/netfilter.h> 7 #include <linux/netfilter/nf_tables.h> 9 #include <libmnl/libmnl.h> 10 #include <libnftnl/flowtable.h> 12 static struct nftnl_flowtable *flowtable_del_parse(
int argc,
char *argv[])
16 t = nftnl_flowtable_alloc();
22 nftnl_flowtable_set_str(t, NFTNL_FLOWTABLE_TABLE, argv[2]);
23 nftnl_flowtable_set_str(t, NFTNL_FLOWTABLE_NAME, argv[3]);
28 int main(
int argc,
char *argv[])
30 struct mnl_socket *nl;
31 struct mnl_nlmsg_batch *batch;
32 char buf[MNL_SOCKET_BUFFER_SIZE];
34 uint32_t portid, seq, flowtable_seq;
36 int ret, family, batching;
39 fprintf(stderr,
"Usage: %s <family> <table> <flowtable>\n",
44 if (strcmp(argv[1],
"ip") == 0)
45 family = NFPROTO_IPV4;
46 else if (strcmp(argv[1],
"ip6") == 0)
47 family = NFPROTO_IPV6;
48 else if (strcmp(argv[1],
"inet") == 0)
49 family = NFPROTO_INET;
50 else if (strcmp(argv[1],
"bridge") == 0)
51 family = NFPROTO_BRIDGE;
52 else if (strcmp(argv[1],
"arp") == 0)
55 fprintf(stderr,
"Unknown family: ip, ip6, inet, bridge, arp\n");
59 t = flowtable_del_parse(argc, argv);
63 batching = nftnl_batch_is_supported();
65 perror(
"cannot talk to nfnetlink");
70 batch = mnl_nlmsg_batch_start(buf,
sizeof(buf));
73 nftnl_batch_begin(mnl_nlmsg_batch_current(batch), seq++);
74 mnl_nlmsg_batch_next(batch);
78 nlh = nftnl_flowtable_nlmsg_build_hdr(mnl_nlmsg_batch_current(batch),
79 NFT_MSG_DELFLOWTABLE, family,
81 nftnl_flowtable_nlmsg_build_payload(nlh, t);
82 nftnl_flowtable_free(t);
83 mnl_nlmsg_batch_next(batch);
86 nftnl_batch_end(mnl_nlmsg_batch_current(batch), seq++);
87 mnl_nlmsg_batch_next(batch);
90 nl = mnl_socket_open(NETLINK_NETFILTER);
92 perror(
"mnl_socket_open");
96 if (mnl_socket_bind(nl, 0, MNL_SOCKET_AUTOPID) < 0) {
97 perror(
"mnl_socket_bind");
100 portid = mnl_socket_get_portid(nl);
102 if (mnl_socket_sendto(nl, mnl_nlmsg_batch_head(batch),
103 mnl_nlmsg_batch_size(batch)) < 0) {
104 perror(
"mnl_socket_send");
108 mnl_nlmsg_batch_stop(batch);
110 ret = mnl_socket_recvfrom(nl, buf,
sizeof(buf));
112 ret = mnl_cb_run(buf, ret, flowtable_seq, portid, NULL, NULL);
115 ret = mnl_socket_recvfrom(nl, buf,
sizeof(buf));
121 mnl_socket_close(nl);