int main(int argc, char *argv[])
{
struct nftnl_rule *a, *b;
struct nftnl_expr *ex;
struct nlmsghdr *nlh;
char buf[4096];
struct nftnl_expr_iter *iter_a, *iter_b;
struct nftnl_expr *rule_a, *rule_b;
uint32_t chain_t = 0x12345678;
uint32_t data_t = 0x12345678;
a = nftnl_rule_alloc();
b = nftnl_rule_alloc();
if (a == NULL || b == NULL)
print_err("OOM");
ex = nftnl_expr_alloc("immediate");
if (ex == NULL)
print_err("OOM");
nftnl_expr_set_u32(ex, NFTNL_EXPR_IMM_DREG, 0x1234568);
nftnl_expr_set(ex, NFTNL_EXPR_IMM_DATA, &chain_t, sizeof(chain_t));
nftnl_expr_set_u32(ex, NFTNL_EXPR_IMM_VERDICT, 0x12345678);
nftnl_expr_set(ex, NFTNL_EXPR_IMM_CHAIN, &data_t, sizeof(data_t));
nftnl_rule_add_expr(a, ex);
nlh = nftnl_rule_nlmsg_build_hdr(buf, NFT_MSG_NEWRULE, AF_INET, 0, 1234);
nftnl_rule_nlmsg_build_payload(nlh, a);
if (nftnl_rule_nlmsg_parse(nlh, b) < 0)
print_err("parsing problems");
iter_a = nftnl_expr_iter_create(a);
iter_b = nftnl_expr_iter_create(b);
if (iter_a == NULL || iter_b == NULL)
print_err("OOM");
rule_a = nftnl_expr_iter_next(iter_a);
rule_b = nftnl_expr_iter_next(iter_b);
if (rule_a == NULL || rule_b == NULL)
print_err("OOM");
cmp_nftnl_expr(rule_a, rule_b);
if (nftnl_expr_iter_next(iter_a) != NULL ||
nftnl_expr_iter_next(iter_b) != NULL)
print_err("More 1 expr.");
nftnl_expr_iter_destroy(iter_a);
nftnl_expr_iter_destroy(iter_b);
nftnl_rule_free(a);
nftnl_rule_free(b);
if (!test_ok)
exit(EXIT_FAILURE);
printf("%s: \033[32mOK\e[0m\n", argv[0]);
return EXIT_SUCCESS;
}
int main(int argc, char *argv[])
{
struct nftnl_rule *a, *b;
struct nftnl_expr *ex;
struct nlmsghdr *nlh;
char buf[4096];
struct nftnl_expr_iter *iter_a, *iter_b;
struct nftnl_expr *rule_a, *rule_b;
a = nftnl_rule_alloc();
b = nftnl_rule_alloc();
if (a == NULL || b == NULL)
print_err("OOM");
ex = nftnl_expr_alloc("byteorder");
if (ex == NULL)
print_err("OOM");
nftnl_expr_set_u32(ex, NFTNL_EXPR_BYTEORDER_SREG, 0x12345678);
nftnl_expr_set_u32(ex, NFTNL_EXPR_BYTEORDER_DREG, 0x12345678);
nftnl_expr_set_u32(ex, NFTNL_EXPR_BYTEORDER_OP, 0x12345678);
nftnl_expr_set_u32(ex, NFTNL_EXPR_BYTEORDER_LEN, 0x12345678);
nftnl_expr_set_u32(ex, NFTNL_EXPR_BYTEORDER_SIZE, 0x12345678);
nftnl_rule_add_expr(a, ex);
nlh = nftnl_rule_nlmsg_build_hdr(buf, NFT_MSG_NEWRULE, AF_INET, 0, 1234);
nftnl_rule_nlmsg_build_payload(nlh, a);
if (nftnl_rule_nlmsg_parse(nlh, b) < 0)
print_err("parsing problems");
iter_a = nftnl_expr_iter_create(a);
iter_b = nftnl_expr_iter_create(b);
if (iter_a == NULL || iter_b == NULL)
print_err("OOM");
rule_a = nftnl_expr_iter_next(iter_a);
rule_b = nftnl_expr_iter_next(iter_b);
if (rule_a == NULL || rule_b == NULL)
print_err("OOM");
cmp_nftnl_expr(rule_a,rule_b);
if (nftnl_expr_iter_next(iter_a) != NULL ||
nftnl_expr_iter_next(iter_b) != NULL)
print_err("More 1 expr.");
nftnl_expr_iter_destroy(iter_a);
nftnl_expr_iter_destroy(iter_b);
nftnl_rule_free(a);
nftnl_rule_free(b);
if (!test_ok)
exit(EXIT_FAILURE);
printf("%s: \033[32mOK\e[0m\n", argv[0]);
return EXIT_SUCCESS;
}
static int rule_cmd(struct mnl_socket *nl, struct nftnl_rule *rule,
uint16_t cmd, uint16_t family, uint16_t type,
enum callback_return_type callback_type,
uint64_t *callback_value)
{
char buf[MNL_SOCKET_BUFFER_SIZE];
struct mnl_nlmsg_batch *batch;
struct nlmsghdr *nlh;
uint32_t seq = 0;
int err;
bzero(buf, sizeof(buf));
debug_netlink_dump_rule(rule);
batch = mnl_nlmsg_batch_start(buf, sizeof(buf));
put_batch_headers(mnl_nlmsg_batch_current(batch),
NFNL_MSG_BATCH_BEGIN, seq++);
mnl_nlmsg_batch_next(batch);
nlh = nftnl_rule_nlmsg_build_hdr(mnl_nlmsg_batch_current(batch),
cmd, family, type, seq++);
nftnl_rule_nlmsg_build_payload(nlh, rule);
mnl_nlmsg_batch_next(batch);
put_batch_headers(mnl_nlmsg_batch_current(batch),
NFNL_MSG_BATCH_END, seq++);
mnl_nlmsg_batch_next(batch);
err = send_and_dispatch(nl, mnl_nlmsg_batch_head(batch),
mnl_nlmsg_batch_size(batch),
callback_type, callback_value);
mnl_nlmsg_batch_stop(batch);
return err;
}
int main(int argc, char *argv[])
{
struct mnl_socket *nl;
struct nftnl_rule *r;
struct nlmsghdr *nlh;
struct mnl_nlmsg_batch *batch;
uint8_t family;
char buf[MNL_SOCKET_BUFFER_SIZE];
uint32_t seq = time(NULL);
int ret;
if (argc < 4 || argc > 5) {
fprintf(stderr, "Usage: %s <family> <table> <chain>\n", argv[0]);
exit(EXIT_FAILURE);
}
if (strcmp(argv[1], "ip") == 0)
family = NFPROTO_IPV4;
else if (strcmp(argv[1], "ip6") == 0)
family = NFPROTO_IPV6;
else {
fprintf(stderr, "Unknown family: ip, ip6\n");
exit(EXIT_FAILURE);
}
if (argc != 5)
r = setup_rule(family, argv[2], argv[3], NULL);
else
r = setup_rule(family, argv[2], argv[3], argv[4]);
nl = mnl_socket_open(NETLINK_NETFILTER);
if (nl == NULL) {
perror("mnl_socket_open");
exit(EXIT_FAILURE);
}
if (mnl_socket_bind(nl, 0, MNL_SOCKET_AUTOPID) < 0) {
perror("mnl_socket_bind");
exit(EXIT_FAILURE);
}
batch = mnl_nlmsg_batch_start(buf, sizeof(buf));
nftnl_mnl_batch_put(mnl_nlmsg_batch_current(batch),
NFNL_MSG_BATCH_BEGIN, seq++);
mnl_nlmsg_batch_next(batch);
nlh = nftnl_rule_nlmsg_build_hdr(mnl_nlmsg_batch_current(batch),
NFT_MSG_NEWRULE,
nftnl_rule_get_u32(r, NFTNL_RULE_FAMILY),
NLM_F_APPEND|NLM_F_CREATE|NLM_F_ACK, seq++);
nftnl_rule_nlmsg_build_payload(nlh, r);
nftnl_rule_free(r);
mnl_nlmsg_batch_next(batch);
nftnl_mnl_batch_put(mnl_nlmsg_batch_current(batch), NFNL_MSG_BATCH_END,
seq++);
mnl_nlmsg_batch_next(batch);
ret = mnl_socket_sendto(nl, mnl_nlmsg_batch_head(batch),
mnl_nlmsg_batch_size(batch));
if (ret == -1) {
perror("mnl_socket_sendto");
exit(EXIT_FAILURE);
}
mnl_nlmsg_batch_stop(batch);
ret = mnl_socket_recvfrom(nl, buf, sizeof(buf));
if (ret == -1) {
perror("mnl_socket_recvfrom");
exit(EXIT_FAILURE);
}
ret = mnl_cb_run(buf, ret, 0, mnl_socket_get_portid(nl), NULL, NULL);
if (ret < 0) {
perror("mnl_cb_run");
exit(EXIT_FAILURE);
}
mnl_socket_close(nl);
return EXIT_SUCCESS;
}