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fix bug #53273: IPv6 link-local address generation for non-ethernet type netif does not convert byte order

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This commit is contained in:
Simon Goldschmidt 2018-06-13 08:57:17 +02:00
parent 0c5133d7cf
commit 392c676ef5
2 changed files with 47 additions and 1 deletions
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2
src/core/netif.c
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@ -1515,7 +1515,7 @@ netif_create_ip6_linklocal_address(struct netif *netif, u8_t from_mac_48bit)
if (i == 4) {
addr_index--;
}
ip_2_ip6(&netif->ip6_addr[0])->addr[addr_index] |= ((u32_t)(netif->hwaddr[netif->hwaddr_len - i - 1])) << (8 * (i & 0x03));
ip_2_ip6(&netif->ip6_addr[0])->addr[addr_index] |= lwip_htonl(((u32_t)(netif->hwaddr[netif->hwaddr_len - i - 1])) << (8 * (i & 0x03)));
}
}

46
test/unit/ip6/test_ip6.c
View File

@ -213,6 +213,51 @@ START_TEST(test_ip6_aton_ipv4mapped)
}
END_TEST
START_TEST(test_ip6_lladdr)
{
u8_t zeros[128];
const u8_t test_mac_addr[6] = {0xb0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5};
const u32_t expected_ip6_addr_1[4] = {PP_HTONL(0xfe800000), 0, PP_HTONL(0xb2a1a2ff), PP_HTONL(0xfea3a4a5)};
const u32_t expected_ip6_addr_2[4] = {PP_HTONL(0xfe800000), 0, PP_HTONL(0x0000b0a1), PP_HTONL(0xa2a3a4a5)};
LWIP_UNUSED_ARG(_i);
memset(zeros, 0, sizeof(zeros));
fail_unless(test_netif6.hwaddr_len == 6);
fail_unless(!memcmp(test_netif6.hwaddr, zeros, 6));
fail_unless(test_netif6.ip6_addr_state[0] == 0);
fail_unless(!memcmp(netif_ip6_addr(&test_netif6, 0), zeros, sizeof(ip6_addr_t)));
/* set specific mac addr */
memcpy(test_netif6.hwaddr, test_mac_addr, 6);
/* create link-local addr based on mac (EUI-48) */
netif_create_ip6_linklocal_address(&test_netif6, 1);
fail_unless(IP_IS_V6(&test_netif6.ip6_addr[0]));
fail_unless(!memcmp(&netif_ip6_addr(&test_netif6, 0)->addr, expected_ip6_addr_1, 16));
#if LWIP_IPV6_SCOPES
fail_unless(netif_ip6_addr(&test_netif6, 0)->zone == (test_netif6.num + 1));
#endif
/* reset address */
memset(&test_netif6.ip6_addr[0], 0, sizeof(ip6_addr_t));
test_netif6.ip6_addr_state[0] = 0;
/* create link-local addr based interface ID */
netif_create_ip6_linklocal_address(&test_netif6, 0);
fail_unless(IP_IS_V6(&test_netif6.ip6_addr[0]));
fail_unless(!memcmp(&netif_ip6_addr(&test_netif6, 0)->addr, expected_ip6_addr_2, 16));
#if LWIP_IPV6_SCOPES
fail_unless(netif_ip6_addr(&test_netif6, 0)->zone == (test_netif6.num + 1));
#endif
/* reset address */
memset(&test_netif6.ip6_addr[0], 0, sizeof(ip6_addr_t));
test_netif6.ip6_addr_state[0] = 0;
/* reset mac address */
memset(&test_netif6.hwaddr, 0, sizeof(test_netif6.hwaddr));
}
END_TEST
/** Create the suite including all tests for this module */
Suite *
ip6_suite(void)
@ -220,6 +265,7 @@ ip6_suite(void)
testfunc tests[] = {
TESTFUNC(test_ip6_ll_addr),
TESTFUNC(test_ip6_aton_ipv4mapped),
TESTFUNC(test_ip6_lladdr)
};
return create_suite("IPv6", tests, sizeof(tests)/sizeof(testfunc), ip6_setup, ip6_teardown);
}