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We had complaints for serving the root, so.. 

TCP only full recursion test now starting from K-root
	(because other roots are unreliable TCP-wise)
This commit is contained in:
Willem Toorop 2018-11-22 12:16:19 +01:00
parent b90ba236ae
commit 2d76a5fd52
1 changed files with 15 additions and 11 deletions
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26
src/test/check_getdns_context_set_dns_transport.h
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@ -292,17 +292,14 @@
struct getdns_dict *extensions = getdns_dict_create();
/*
* Not all servers in the path to large.getdnsapi.net seem to support
* TCP consistently. Many (root) servers are anycasted which decreases
* reliability of TCP availability (as we've seen in practice).
* To mitigate we provide our own root server for which we are sure that
* it supports TCP. The .net authoritative server are still out of our
* control tough. But because they are managed by a single party I
* suspect them to be a bit more reliable.
* Not all root servers seem to support TCP reliably. To mitigate,
* we put our faith in k.root-servers.net.
*/
struct getdns_list *root_servers = getdns_list_create();
struct getdns_list *root_servers2 = getdns_list_create();
struct getdns_bindata nlnetlabs_root = { 4, (void *)"\xB9\x31\x8D\x25" };
struct getdns_bindata k4_root = { 4, (void *)"\xC1\x00\x0E\x81" };
struct getdns_bindata k6_root = { 16, (void *)
"\x20\x01\x07\xFD\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01" };
struct getdns_bindata *answer = NULL;
uint32_t status;
@ -319,7 +316,9 @@
/* Re-do over TCP */
ASSERT_RC(getdns_dict_set_int(extensions,"return_call_reporting", GETDNS_EXTENSION_TRUE),
GETDNS_RETURN_GOOD, "Return code from getdns_dict_set_int()");
ASSERT_RC(getdns_list_set_bindata(root_servers, 0, &nlnetlabs_root),
ASSERT_RC(getdns_list_set_bindata(root_servers, 0, &k6_root),
GETDNS_RETURN_GOOD, "Return code from getdns_list_set_bindata()");
ASSERT_RC(getdns_list_set_bindata(root_servers, 1, &k4_root),
GETDNS_RETURN_GOOD, "Return code from getdns_list_set_bindata()");
ASSERT_RC(getdns_context_set_dns_root_servers(context, root_servers),
@ -328,8 +327,13 @@
GETDNS_RETURN_GOOD, "Return code from getdns_context_get_dns_root_servers()");
ASSERT_RC(getdns_list_get_bindata(root_servers2, 0, &answer),
GETDNS_RETURN_GOOD, "Return code from getdns_list_get_bindata()");
ck_assert_msg(strncmp((char *)answer->data, (char *)nlnetlabs_root.data, 4) == 0,
"Expected answer data to be 185.49.141.37");
ck_assert_msg(strncmp((char *)answer->data, (char *)k6_root.data, 16) == 0,
"Expected answer data to be 2001:7fd::1");
ASSERT_RC(getdns_list_get_bindata(root_servers2, 1, &answer),
GETDNS_RETURN_GOOD, "Return code from getdns_list_get_bindata()");
ck_assert_msg(strncmp((char *)answer->data, (char *)k4_root.data, 4) == 0,
"Expected answer data to be 193.0.14.129");
ASSERT_RC(getdns_context_set_dns_transport(context, GETDNS_TRANSPORT_TCP_ONLY),
GETDNS_RETURN_GOOD, "Return code from getdns_context_set_dns_transport()");
ASSERT_RC(getdns_context_set_edns_maximum_udp_payload_size(context, 512),