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domain-rule: Exceptions are allowed when enable force-AAAA-SOA

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This commit is contained in:
Nick Peng
2023-03-27 22:41:32 +08:00
parent 2dbde718a7
commit fa5e519368
4 changed files with 97 additions and 16 deletions
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2
etc/smartdns/smartdns.conf
View File

@@ -106,7 +106,9 @@ bind [::]:53
# force specific qtype return soa
# force-qtype-SOA [qtypeid |...]
# force-qtype-SOA [qtypeid,...]
# force-qtype-SOA 65 28
# force-qtype-SOA 65,28
force-qtype-SOA 65
# Enable IPV4, IPV6 dual stack IP optimization selection strategy

26
src/dns_conf.c
View File

@@ -2227,19 +2227,23 @@ static int _config_qtype_soa(void *data, int argc, char *argv[])
}
for (i = 1; i < argc; i++) {
soa_list = malloc(sizeof(*soa_list));
if (soa_list == NULL) {
tlog(TLOG_ERROR, "cannot malloc memory");
return -1;
}
char sub_arg[1024];
safe_strncpy(sub_arg, argv[i], sizeof(sub_arg));
for (char *tok = strtok(sub_arg, ","); tok; tok = strtok(NULL, ",")) {
soa_list = malloc(sizeof(*soa_list));
if (soa_list == NULL) {
tlog(TLOG_ERROR, "cannot malloc memory");
return -1;
}
memset(soa_list, 0, sizeof(*soa_list));
soa_list->qtypeid = atol(argv[i]);
if (soa_list->qtypeid == DNS_T_AAAA) {
dns_conf_force_AAAA_SOA = 1;
memset(soa_list, 0, sizeof(*soa_list));
soa_list->qtypeid = atol(tok);
if (soa_list->qtypeid == DNS_T_AAAA) {
dns_conf_force_AAAA_SOA = 1;
}
uint32_t key = hash_32_generic(soa_list->qtypeid, 32);
hash_add(dns_qtype_soa_table.qtype, &soa_list->node, key);
}
uint32_t key = hash_32_generic(soa_list->qtypeid, 32);
hash_add(dns_qtype_soa_table.qtype, &soa_list->node, key);
}
return 0;

9
src/dns_server.c
View File

@@ -3961,7 +3961,7 @@ static int _dns_server_pre_process_rule_flags(struct dns_request *request)
if (flags & DOMAIN_FLAG_ADDR_IGN) {
/* ignore this domain */
goto out;
goto skip_soa_out;
}
/* return specific type of address */
@@ -3969,7 +3969,7 @@ static int _dns_server_pre_process_rule_flags(struct dns_request *request)
case DNS_T_A:
if (flags & DOMAIN_FLAG_ADDR_IPV4_IGN) {
/* ignore this domain for A request */
goto out;
goto skip_soa_out;
}
if (_dns_server_is_return_soa(request)) {
@@ -3983,7 +3983,7 @@ static int _dns_server_pre_process_rule_flags(struct dns_request *request)
case DNS_T_AAAA:
if (flags & DOMAIN_FLAG_ADDR_IPV6_IGN) {
/* ignore this domain for A request */
goto out;
goto skip_soa_out;
}
if (_dns_server_is_return_soa(request)) {
@@ -4007,7 +4007,8 @@ static int _dns_server_pre_process_rule_flags(struct dns_request *request)
if (_dns_server_is_return_soa(request)) {
goto soa;
}
skip_soa_out:
request->skip_qtype_soa = 1;
out:
return -1;

76
test/cases/test-qtype-soa.cc
View File

@@ -52,7 +52,7 @@ server 127.0.0.1:61053
log-num 0
log-console yes
log-level debug
force-qtype-SOA 28 65
force-qtype-SOA 28,65
cache-persist no)""");
smartdns::Client client;
ASSERT_TRUE(client.Query("a.com AAAA", 60053));
@@ -77,6 +77,80 @@ cache-persist no)""");
EXPECT_EQ(client.GetAnswer()[0].GetName(), "a.com");
}
TEST_F(QtypeSOA, AAAA_Except)
{
smartdns::MockServer server_upstream;
smartdns::Server server;
server_upstream.Start("udp://0.0.0.0:61053", [](struct smartdns::ServerRequestContext *request) {
if (request->qtype == DNS_T_A) {
smartdns::MockServer::AddIP(request, request->domain.c_str(), "1.2.3.4");
return smartdns::SERVER_REQUEST_OK;
} else if (request->qtype == DNS_T_AAAA) {
smartdns::MockServer::AddIP(request, request->domain.c_str(), "2001:db8::1");
return smartdns::SERVER_REQUEST_OK;
}
return smartdns::SERVER_REQUEST_SOA;
});
server.Start(R"""(bind [::]:60053
server 127.0.0.1:61053
log-num 0
log-console yes
log-level debug
dualstack-ip-selection no
force-qtype-SOA 28
address /a.com/-
cache-persist no)""");
smartdns::Client client;
ASSERT_TRUE(client.Query("a.com AAAA", 60053));
std::cout << client.GetResult() << std::endl;
ASSERT_EQ(client.GetAnswerNum(), 1);
EXPECT_EQ(client.GetStatus(), "NOERROR");
EXPECT_EQ(client.GetAnswer()[0].GetName(), "a.com");
EXPECT_EQ(client.GetAnswer()[0].GetTTL(), 3);
EXPECT_EQ(client.GetAnswer()[0].GetType(), "AAAA");
EXPECT_EQ(client.GetAnswer()[0].GetData(), "2001:db8::1");
}
TEST_F(QtypeSOA, force_AAAA_SOA_Except)
{
smartdns::MockServer server_upstream;
smartdns::Server server;
server_upstream.Start("udp://0.0.0.0:61053", [](struct smartdns::ServerRequestContext *request) {
if (request->qtype == DNS_T_A) {
smartdns::MockServer::AddIP(request, request->domain.c_str(), "1.2.3.4");
return smartdns::SERVER_REQUEST_OK;
} else if (request->qtype == DNS_T_AAAA) {
smartdns::MockServer::AddIP(request, request->domain.c_str(), "2001:db8::1");
return smartdns::SERVER_REQUEST_OK;
}
return smartdns::SERVER_REQUEST_SOA;
});
server.Start(R"""(bind [::]:60053
server 127.0.0.1:61053
log-num 0
log-console yes
log-level debug
dualstack-ip-selection no
force-AAAA-SOA yes
address /a.com/-
cache-persist no)""");
smartdns::Client client;
ASSERT_TRUE(client.Query("a.com AAAA", 60053));
std::cout << client.GetResult() << std::endl;
ASSERT_EQ(client.GetAnswerNum(), 1);
EXPECT_EQ(client.GetStatus(), "NOERROR");
EXPECT_EQ(client.GetAnswer()[0].GetName(), "a.com");
EXPECT_EQ(client.GetAnswer()[0].GetTTL(), 3);
EXPECT_EQ(client.GetAnswer()[0].GetType(), "AAAA");
EXPECT_EQ(client.GetAnswer()[0].GetData(), "2001:db8::1");
}
TEST_F(QtypeSOA, force_AAAA_SOA)
{
smartdns::MockServer server_upstream;