int __build_expect(struct nfnl_subsys_handle *ssh,
struct nfnlhdr *req,
size_t size,
u_int16_t type,
u_int16_t flags,
const struct nf_expect *exp)
{
u_int8_t l3num;
if (test_bit(ATTR_ORIG_L3PROTO, exp->master.set))
l3num = exp->master.orig.l3protonum;
else if (test_bit(ATTR_ORIG_L3PROTO, exp->expected.set))
l3num = exp->expected.orig.l3protonum;
else
return -1;
memset(req, 0, size);
nfnl_fill_hdr(ssh, &req->nlh, 0, l3num, 0, type, flags);
if (test_bit(ATTR_EXP_EXPECTED, exp->set)) {
__build_tuple(req, size, &exp->expected.orig, CTA_EXPECT_TUPLE);
}
if (test_bit(ATTR_EXP_MASTER, exp->set)) {
__build_tuple(req, size, &exp->master.orig, CTA_EXPECT_MASTER);
}
if (test_bit(ATTR_EXP_MASK, exp->set)) {
__build_tuple(req, size, &exp->mask.orig, CTA_EXPECT_MASK);
}
if (test_bit(ATTR_EXP_TIMEOUT, exp->set))
__build_timeout(req, size, exp);
if (test_bit(ATTR_EXP_FLAGS, exp->set))
__build_flags(req, size, exp);
if (test_bit(ATTR_EXP_ZONE, exp->set))
__build_zone(req, size, exp);
if (test_bit(ATTR_EXP_HELPER_NAME, exp->set))
__build_helper_name(req, size, exp);
return 0;
}
int __build_conntrack(struct nfnl_subsys_handle *ssh,
struct nfnlhdr *req,
size_t size,
u_int16_t type,
u_int16_t flags,
const struct nf_conntrack *ct)
{
u_int8_t l3num = ct->tuple[__DIR_ORIG].l3protonum;
if (!test_bit(ATTR_ORIG_L3PROTO, ct->set)) {
errno = EINVAL;
return -1;
}
memset(req, 0, size);
nfnl_fill_hdr(ssh, &req->nlh, 0, l3num, 0, type, flags);
if (test_bit(ATTR_ORIG_IPV4_SRC, ct->set) ||
test_bit(ATTR_ORIG_IPV4_DST, ct->set) ||
test_bit(ATTR_ORIG_IPV6_SRC, ct->set) ||
test_bit(ATTR_ORIG_IPV6_DST, ct->set) ||
test_bit(ATTR_ORIG_PORT_SRC, ct->set) ||
test_bit(ATTR_ORIG_PORT_DST, ct->set) ||
test_bit(ATTR_ORIG_L3PROTO, ct->set) ||
test_bit(ATTR_ORIG_L4PROTO, ct->set) ||
test_bit(ATTR_ICMP_TYPE, ct->set) ||
test_bit(ATTR_ICMP_CODE, ct->set) ||
test_bit(ATTR_ICMP_ID, ct->set))
{
__build_tuple(req, size,
&ct->tuple[__DIR_ORIG],
CTA_TUPLE_ORIG);
}
if (test_bit(ATTR_REPL_IPV4_SRC, ct->set) ||
test_bit(ATTR_REPL_IPV4_DST, ct->set) ||
test_bit(ATTR_REPL_IPV6_SRC, ct->set) ||
test_bit(ATTR_REPL_IPV6_DST, ct->set) ||
test_bit(ATTR_REPL_PORT_SRC, ct->set) ||
test_bit(ATTR_REPL_PORT_DST, ct->set) ||
test_bit(ATTR_REPL_L3PROTO, ct->set) ||
test_bit(ATTR_REPL_L4PROTO, ct->set) ||
test_bit(ATTR_ICMP_TYPE, ct->set) ||
test_bit(ATTR_ICMP_CODE, ct->set) ||
test_bit(ATTR_ICMP_ID, ct->set))
{
__build_tuple(req, size,
&ct->tuple[__DIR_REPL],
CTA_TUPLE_REPLY);
}
if (test_bit(ATTR_MASTER_IPV4_SRC, ct->set) ||
test_bit(ATTR_MASTER_IPV4_DST, ct->set) ||
test_bit(ATTR_MASTER_IPV6_SRC, ct->set) ||
test_bit(ATTR_MASTER_IPV6_DST, ct->set) ||
test_bit(ATTR_MASTER_PORT_SRC, ct->set) ||
test_bit(ATTR_MASTER_PORT_DST, ct->set) ||
test_bit(ATTR_MASTER_L3PROTO, ct->set) ||
test_bit(ATTR_MASTER_L4PROTO, ct->set))
{
__build_tuple(req, size,
&ct->tuple[__DIR_MASTER], CTA_TUPLE_MASTER);
}
if (test_bit(ATTR_STATUS, ct->set))
{
__build_status(req, size, ct);
}
else {
/* build IPS_CONFIRMED if we're creating a new conntrack */
if (type == IPCTNL_MSG_CT_NEW && flags & NLM_F_CREATE)
__build_status(req, size, ct);
}
if (test_bit(ATTR_TIMEOUT, ct->set))
{
__build_timeout(req, size, ct);
}
if (test_bit(ATTR_MARK, ct->set))
{
__build_mark(req, size, ct);
}
if (test_bit(ATTR_SECMARK, ct->set))
{
__build_secmark(req, size, ct);
}
__build_protoinfo(req, size, ct);
if (test_bit(ATTR_SNAT_IPV4, ct->set) &&
test_bit(ATTR_SNAT_PORT, ct->set))
{
__build_snat(req, size, ct);
}
else if (test_bit(ATTR_SNAT_IPV4, ct->set))
{
__build_snat_ipv4(req, size, ct);
}
else if (test_bit(ATTR_SNAT_PORT, ct->set))
{
__build_snat_port(req, size, ct);
}
if (test_bit(ATTR_DNAT_IPV4, ct->set) &&
test_bit(ATTR_DNAT_PORT, ct->set))
{
__build_dnat(req, size, ct);
}
else if (test_bit(ATTR_DNAT_IPV4, ct->set))
{
__build_dnat_ipv4(req, size, ct);
}
else if (test_bit(ATTR_DNAT_PORT, ct->set))
{
__build_dnat_port(req, size, ct);
}
if (test_bit(ATTR_ORIG_NAT_SEQ_CORRECTION_POS, ct->set) &&
test_bit(ATTR_ORIG_NAT_SEQ_OFFSET_BEFORE, ct->set) &&
test_bit(ATTR_ORIG_NAT_SEQ_OFFSET_AFTER, ct->set))
{
__build_nat_seq_adj(req, size, ct, __DIR_ORIG);
}
if (test_bit(ATTR_REPL_NAT_SEQ_CORRECTION_POS, ct->set) &&
test_bit(ATTR_REPL_NAT_SEQ_OFFSET_BEFORE, ct->set) &&
test_bit(ATTR_REPL_NAT_SEQ_OFFSET_AFTER, ct->set))
{
__build_nat_seq_adj(req, size, ct, __DIR_REPL);
}
if (test_bit(ATTR_HELPER_NAME, ct->set))
{
__build_helper_name(req, size, ct);
}
return 0;
}