static void test_ipv6_addr_is_solicited_node_multicast_but_no_solicited_node(void)
{
ng_ipv6_addr_t a = { {
0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f
}
};
TEST_ASSERT_EQUAL_INT(false, ng_ipv6_addr_is_solicited_node(&a));
}
static void test_ipv6_addr_is_solicited_node_solicited_node_multicast(void)
{
ng_ipv6_addr_t a = { {
0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x01, 0xff, 0x0d, 0x0e, 0x0f
}
};
TEST_ASSERT_EQUAL_INT(true, ng_ipv6_addr_is_solicited_node(&a));
}
void ng_ndp_nbr_sol_handle(kernel_pid_t iface, ng_pktsnip_t *pkt,
ng_ipv6_hdr_t *ipv6, ng_ndp_nbr_sol_t *nbr_sol,
size_t icmpv6_size)
{
uint16_t opt_offset = 0;
uint8_t *buf = ((uint8_t *)nbr_sol) + sizeof(ng_ndp_nbr_sol_t);
ng_ipv6_addr_t *tgt;
int sicmpv6_size = (int)icmpv6_size;
/* check validity */
if ((ipv6->hl != 255) || (nbr_sol->code != 0) ||
(icmpv6_size < sizeof(ng_ndp_nbr_sol_t)) ||
ng_ipv6_addr_is_multicast(&nbr_sol->tgt) ||
(ng_ipv6_addr_is_unspecified(&ipv6->src) &&
ng_ipv6_addr_is_solicited_node(&ipv6->dst))) {
DEBUG("ndp: neighbor solicitation was invalid.\n");
/* ipv6 releases */
return;
}
if ((tgt = ng_ipv6_netif_find_addr(iface, &nbr_sol->tgt)) == NULL) {
DEBUG("ndp: Target address is not to interface %" PRIkernel_pid "\n",
iface);
/* ipv6 releases */
return;
}
sicmpv6_size -= sizeof(ng_ndp_nbr_sol_t);
while (sicmpv6_size > 0) {
ng_ndp_opt_t *opt = (ng_ndp_opt_t *)(buf + opt_offset);
switch (opt->type) {
case NG_NDP_OPT_SL2A:
if (!_handle_sl2a_opt(iface, pkt, ipv6, nbr_sol->type, opt)) {
/* invalid source link-layer address option */
return;
}
break;
default:
/* silently discard all other options */
break;
}
opt_offset += (opt->len * 8);
sicmpv6_size -= (opt->len * 8);
}
_send_nbr_adv(iface, tgt, &ipv6->src,
ng_ipv6_addr_is_multicast(&ipv6->dst));
return;
}
