test: dm: eth: Add ip6_make_snma test

Add a test that checks generated Solicited Node Multicast Address from our
ipv6 address. Use in sandbox

Signed-off-by: Viacheslav Mitrofanov <v.v.mitrofanov@yadro.com>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

diff --git a/test/dm/eth.c b/test/dm/eth.c
index 4c50258..a3ee231 100644 (file)
--- a/test/dm/eth.c
+++ b/test/dm/eth.c
@@ -129,6 +129,26 @@ static int dm_test_ip6_addr_in_subnet(struct unit_test_state *uts)
        return 0;
 }
 DM_TEST(dm_test_ip6_addr_in_subnet, 0);
+
+static int dm_test_ip6_make_snma(struct unit_test_state *uts)
+{
+       struct in6_addr mult = {0};
+       struct in6_addr correct_addr = {
+                                .s6_addr32[0] = 0x000002ff,
+                                .s6_addr32[1] = 0x00000000,
+                                .s6_addr32[2] = 0x01000000,
+                                .s6_addr32[3] = 0xe8f66dff};
+       struct in6_addr addr = { .s6_addr32[0] = 0x000080fe,
+                                .s6_addr32[1] = 0x00000000,
+                                .s6_addr32[2] = 0xffe9f242,
+                                .s6_addr32[3] = 0xe8f66dfe};
+
+       ip6_make_snma(&mult, &addr);
+       ut_asserteq_mem(&mult, &correct_addr, sizeof(struct in6_addr));
+
+       return 0;
+}
+DM_TEST(dm_test_ip6_make_snma, 0);
 #endif
 
 static int dm_test_eth(struct unit_test_state *uts)