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tests: net: ipv6: Add test for neighbor advertisement

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Check that we change the ll address in neighbor cache
properly when receiving NA.

Change-Id: Ib0373751abebdfe1c5e83fd38ec91b9587797e32
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
This commit is contained in:
Jukka Rissanen 2016-11-29 15:24:52 +02:00
commit 368ef49331
1 changed files with 76 additions and 0 deletions
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76
tests/net/ipv6/src/main.c
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@ -544,6 +544,81 @@ static bool net_test_hbho_message(void)
return true;
}
static bool net_test_change_ll_addr(void)
{
uint8_t new_mac[] = { 00, 01, 02, 03, 04, 05 };
struct net_linkaddr_storage *ll;
struct net_linkaddr *ll_iface;
struct net_buf *buf, *frag;
struct in6_addr dst;
struct net_if *iface;
struct net_nbr *nbr;
uint16_t reserve;
uint32_t flags;
int ret;
net_ipv6_addr_create(&dst, 0xff02, 0, 0, 0, 0, 0, 0, 1);
buf = net_nbuf_get_reserve_tx(0);
NET_ASSERT_INFO(buf, "Out of TX buffers");
iface = net_if_get_default();
reserve = net_if_get_ll_reserve(iface, NULL);
frag = net_nbuf_get_reserve_data(reserve);
net_buf_frag_add(buf, frag);
net_nbuf_set_ll_reserve(buf, reserve);
net_nbuf_set_iface(buf, iface);
net_nbuf_set_family(buf, AF_INET6);
net_nbuf_set_ip_hdr_len(buf, sizeof(struct net_ipv6_hdr));
flags = NET_ICMPV6_NA_FLAG_ROUTER |
NET_ICMPV6_NA_FLAG_OVERRIDE;
ret = net_ipv6_send_na(iface, &peer_addr, &dst,
&peer_addr, flags);
if (ret < 0) {
TC_ERROR("Cannot send NA 1\n");
return false;
}
nbr = net_ipv6_nbr_lookup(iface, &peer_addr);
ll = net_nbr_get_lladdr(nbr->idx);
ll_iface = net_if_get_link_addr(iface);
if (memcmp(ll->addr, ll_iface->addr, ll->len) != 0) {
TC_ERROR("Wrong link address 1\n");
return false;
}
/* As the net_ipv6_send_na() uses interface link address to
* greate tllao, change the interface ll address here.
*/
ll_iface->addr = new_mac;
ret = net_ipv6_send_na(iface, &peer_addr, &dst,
&peer_addr, flags);
if (ret < 0) {
TC_ERROR("Cannot send NA 2\n");
return false;
}
nbr = net_ipv6_nbr_lookup(iface, &peer_addr);
ll = net_nbr_get_lladdr(nbr->idx);
if (memcmp(ll->addr, ll_iface->addr, ll->len) != 0) {
TC_ERROR("Wrong link address 2\n");
return false;
}
return true;
}
static const struct {
const char *name;
bool (*func)(void);
@ -557,6 +632,7 @@ static const struct {
{ "IPv6 send NS no options", net_test_send_ns_no_options },
{ "IPv6 handle RA message", net_test_ra_message },
{ "IPv6 parse Hop-By-Hop Option", net_test_hbho_message },
{ "IPv6 change ll address", net_test_change_ll_addr },
{ "IPv6 prefix timeout", net_test_prefix_timeout },
/*{ "IPv6 prefix timeout overflow", net_test_prefix_timeout_overflow },*/
};