bool test_addr_4to6(struct in_addr *src, struct ipv6_prefix *prefix, struct in6_addr *expected)
{
struct in6_addr actual;
bool success = true;
success &= assert_true(addr_4to6(src, prefix, &actual), "Append IPv4-result");
success &= assert_equals_ipv6(expected, &actual, "Append IPv4-out.");
return success;
}
int rfc6052_4to6(struct pool6 *pool, struct in_addr *addr4,
struct in6_addr *result)
{
struct ipv6_prefix prefix;
int error;
error = pool6_peek(pool, &prefix);
if (error)
return error;
return addr_4to6(addr4, &prefix, result);
}
static int create_session_ipv4(struct tuple *tuple4, struct bib_entry *bib,
struct session_entry **session)
{
struct ipv6_prefix prefix;
struct in6_addr ipv6_src;
struct tuple tuple6;
int error;
error = pool6_peek(&prefix);
if (error)
return error;
error = addr_4to6(&tuple4->src.addr4.l3, &prefix, &ipv6_src);
if (error) {
log_debug("Error code %d while translating the packet's address.", error);
return error;
}
/*
* Fortunately, ICMP errors cannot reach this code because of the requirements in the header
* of section 3.5, so we can use the tuple as shortcuts for the packet's fields.
*/
if (bib)
tuple6.src.addr6 = bib->ipv6;
else
memset(&tuple6.src.addr6, 0, sizeof(tuple6.src.addr6));
tuple6.dst.addr6.l3 = ipv6_src;
tuple6.dst.addr6.l4 = tuple4->src.addr4.l4;
*session = session_create(&tuple6.src.addr6, &tuple6.dst.addr6,
&tuple4->dst.addr4, &tuple4->src.addr4, tuple4->l4_proto, bib);
if (!(*session)) {
log_debug("Failed to allocate a session entry.");
return -ENOMEM;
}
apply_policies();
return 0;
}
