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test: check if ipv6 link-local traffic is routable (#4220)

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Fixes: https://github.com/libuv/libuv/issues/4211
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Ben Noordhuis 2023-11-14 22:09:30 +01:00 committed by GitHub
parent d843b7cf7f
commit 54d8364c24
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1 changed files with 17 additions and 0 deletions
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17
test/test-tcp-connect6-error.c
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@ -23,6 +23,7 @@
#include "task.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
static int connect_cb_called = 0;
@ -75,9 +76,13 @@ TEST_IMPL(tcp_connect6_error_fault) {
TEST_IMPL(tcp_connect6_link_local) {
uv_interface_address_t* ifs;
uv_interface_address_t* p;
struct sockaddr_in6 addr;
uv_connect_t req;
uv_tcp_t server;
int ok;
int n;
if (!can_ipv6())
RETURN_SKIP("IPv6 not supported");
@ -90,6 +95,18 @@ TEST_IMPL(tcp_connect6_link_local) {
RETURN_SKIP("Test does not currently work in QEMU");
#endif /* defined(__QEMU__) */
/* Check there's an interface that routes link-local (fe80::/10) traffic. */
ASSERT_OK(uv_interface_addresses(&ifs, &n));
for (p = ifs; p < &ifs[n]; p++)
if (p->address.address6.sin6_family == AF_INET6)
if (!memcmp(&p->address.address6.sin6_addr, "\xfe\x80", 2))
break;
ok = (p < &ifs[n]);
uv_free_interface_addresses(ifs, n);
if (!ok)
RETURN_SKIP("IPv6 link-local traffic not supported");
ASSERT_OK(uv_ip6_addr("fe80::0bad:babe", 1337, &addr));
ASSERT_OK(uv_tcp_init(uv_default_loop(), &server));