Exemplo n.º 1
0
Arquivo: exp.c Projeto: arend/libnl
static int nfnl_exp_build_message(const struct nfnl_exp *exp, int cmd, int flags,
				 struct nl_msg **result)
{
	struct nl_msg *msg;
	int err;

	msg = nfnlmsg_alloc_simple(NFNL_SUBSYS_CTNETLINK_EXP, cmd, flags,
				   nfnl_exp_get_family(exp), 0);
	if (msg == NULL)
		return -NLE_NOMEM;

	if ((err = nfnl_exp_build_tuple(msg, exp, CTA_EXPECT_TUPLE)) < 0)
		goto err_out;

	if ((err = nfnl_exp_build_tuple(msg, exp, CTA_EXPECT_MASTER)) < 0)
		goto err_out;

	if ((err = nfnl_exp_build_tuple(msg, exp, CTA_EXPECT_MASK)) < 0)
		goto err_out;

	if (nfnl_exp_test_src(exp, NFNL_EXP_TUPLE_NAT)) {
		if ((err = nfnl_exp_build_nat(msg, exp)) < 0)
			goto err_out;
	}

	if (nfnl_exp_test_class(exp))
		NLA_PUT_U32(msg, CTA_EXPECT_CLASS, htonl(nfnl_exp_get_class(exp)));

	if (nfnl_exp_test_fn(exp))
		NLA_PUT_STRING(msg, CTA_EXPECT_FN, nfnl_exp_get_fn(exp));

	if (nfnl_exp_test_id(exp))
		NLA_PUT_U32(msg, CTA_EXPECT_ID, htonl(nfnl_exp_get_id(exp)));

	if (nfnl_exp_test_timeout(exp))
		NLA_PUT_U32(msg, CTA_EXPECT_TIMEOUT, htonl(nfnl_exp_get_timeout(exp)));

	if (nfnl_exp_test_helper_name(exp))
		NLA_PUT_STRING(msg, CTA_EXPECT_HELP_NAME, nfnl_exp_get_helper_name(exp));

	if (nfnl_exp_test_zone(exp))
		NLA_PUT_U16(msg, CTA_EXPECT_ZONE, htons(nfnl_exp_get_zone(exp)));

	if (nfnl_exp_test_flags(exp))
		NLA_PUT_U32(msg, CTA_EXPECT_FLAGS, htonl(nfnl_exp_get_flags(exp)));

	*result = msg;
	return 0;

nla_put_failure:
err_out:
	nlmsg_free(msg);
	return err;
}
Exemplo n.º 2
0
static void exp_dump_details(struct nl_object *a, struct nl_dump_params *p)
{
	struct nfnl_exp *exp = (struct nfnl_exp *) a;
	char buf[64];
	int fp = 0;

	exp_dump_line(a, p);

	nl_dump(p, "    id 0x%x ", exp->exp_id);
	nl_dump_line(p, "family %s ",
		nl_af2str(exp->exp_family, buf, sizeof(buf)));

	if (nfnl_exp_test_timeout(exp)) {
		uint64_t timeout_ms = nfnl_exp_get_timeout(exp) * 1000UL;
		nl_dump(p, "timeout %s ",
			nl_msec2str(timeout_ms, buf, sizeof(buf)));
	}

	if (nfnl_exp_test_helper_name(exp))
		nl_dump(p, "helper %s ", exp->exp_helper_name);

	if (nfnl_exp_test_fn(exp))
		nl_dump(p, "fn %s ", exp->exp_fn);

	if (nfnl_exp_test_class(exp))
		nl_dump(p, "class %u ", nfnl_exp_get_class(exp));

	if (nfnl_exp_test_zone(exp))
		nl_dump(p, "zone %u ", nfnl_exp_get_zone(exp));

	if (nfnl_exp_test_flags(exp))
		nl_dump(p, "<");
#define PRINT_FLAG(str) \
	{ nl_dump(p, "%s%s", fp++ ? "," : "", (str)); }

	if (exp->exp_flags & NF_CT_EXPECT_PERMANENT)
		PRINT_FLAG("PERMANENT");
	if (exp->exp_flags & NF_CT_EXPECT_INACTIVE)
		PRINT_FLAG("INACTIVE");
	if (exp->exp_flags & NF_CT_EXPECT_USERSPACE)
		PRINT_FLAG("USERSPACE");
#undef PRINT_FLAG

	if (nfnl_exp_test_flags(exp))
		nl_dump(p, ">");

	nl_dump(p, "\n");
}