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resolved: tests for dns_packet_extract(); parsing of queries

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James Coglan
2024-07-22 09:47:47 +01:00
parent b8112c9d68
commit e50e5cffde
1 changed files with 166 additions and 0 deletions
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src/resolve/test-dns-packet-extract.c
+166
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@@ -1,6 +1,8 @@
/* SPDX-License-Identifier: LGPL-2.1-or-later */
#include "dns-type.h"
#include "resolved-dns-packet.h"
#include "resolved-dns-rr.h"
#include "log.h"
#include "tests.h"
@@ -249,4 +251,168 @@ TEST(packet_header_reply_dnssec_bits) {
ASSERT_EQ(DNS_PACKET_ARCOUNT(packet), 0);
}
/* ================================================================
* queries
* ================================================================ */
TEST(packet_query_single) {
_cleanup_(dns_packet_unrefp) DnsPacket *packet = NULL;
_cleanup_(dns_resource_key_unrefp) DnsResourceKey *key = NULL;
ASSERT_OK(dns_packet_new(&packet, DNS_PROTOCOL_DNS, 0, DNS_PACKET_SIZE_MAX));
ASSERT_NOT_NULL(packet);
dns_packet_truncate(packet, 0);
const uint8_t data[] = {
0x00, 0x42, 0x00, 0x00,
0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/* name */ 0x03, 'w', 'w', 'w',
0x07, 'e', 'x', 'a', 'm', 'p', 'l', 'e',
0x03, 'c', 'o', 'm',
0x00,
/* A */ 0x00, 0x01,
/* IN */ 0x00, 0x01
};
ASSERT_OK(dns_packet_append_blob(packet, data, sizeof(data), NULL));
ASSERT_OK(dns_packet_extract(packet));
ASSERT_EQ(dns_question_size(packet->question), 1u);
ASSERT_EQ(dns_answer_size(packet->answer), 0u);
key = dns_resource_key_new(DNS_CLASS_IN, DNS_TYPE_A, "www.example.com");
ASSERT_NOT_NULL(key);
ASSERT_TRUE(dns_question_contains_key(packet->question, key));
}
TEST(packet_query_multi) {
_cleanup_(dns_packet_unrefp) DnsPacket *packet = NULL;
DnsResourceKey *key = NULL;
ASSERT_OK(dns_packet_new(&packet, DNS_PROTOCOL_DNS, 0, DNS_PACKET_SIZE_MAX));
ASSERT_NOT_NULL(packet);
dns_packet_truncate(packet, 0);
const uint8_t data[] = {
0x00, 0x42, 0x00, 0x00,
0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/* name */ 0x03, 'w', 'w', 'w',
0x07, 'e', 'x', 'a', 'm', 'p', 'l', 'e',
0x03, 'c', 'o', 'm',
0x00,
/* A */ 0x00, 0x01,
/* IN */ 0x00, 0x01,
/* name */ 0x04, 'm', 'a', 'i', 'l',
0x07, 'e', 'x', 'a', 'm', 'p', 'l', 'e',
0x03, 'c', 'o', 'm',
0x00,
/* MX */ 0x00, 0x0f,
/* ANY */ 0x00, 0xff
};
ASSERT_OK(dns_packet_append_blob(packet, data, sizeof(data), NULL));
ASSERT_OK(dns_packet_extract(packet));
ASSERT_EQ(dns_question_size(packet->question), 2u);
ASSERT_EQ(dns_answer_size(packet->answer), 0u);
key = dns_resource_key_new(DNS_CLASS_IN, DNS_TYPE_A, "www.example.com");
ASSERT_NOT_NULL(key);
ASSERT_TRUE(dns_question_contains_key(packet->question, key));
dns_resource_key_unref(key);
key = dns_resource_key_new(DNS_CLASS_ANY, DNS_TYPE_MX, "mail.example.com");
ASSERT_NOT_NULL(key);
ASSERT_TRUE(dns_question_contains_key(packet->question, key));
dns_resource_key_unref(key);
}
TEST(packet_query_multi_compressed_domain_1) {
_cleanup_(dns_packet_unrefp) DnsPacket *packet = NULL;
DnsResourceKey *key = NULL;
ASSERT_OK(dns_packet_new(&packet, DNS_PROTOCOL_DNS, 0, DNS_PACKET_SIZE_MAX));
ASSERT_NOT_NULL(packet);
dns_packet_truncate(packet, 0);
const uint8_t data[] = {
0x00, 0x42, 0x00, 0x00,
0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/* name */ 0x03, 'w', 'w', 'w',
0x07, 'e', 'x', 'a', 'm', 'p', 'l', 'e',
0x03, 'c', 'o', 'm',
0x00,
/* A */ 0x00, 0x01,
/* IN */ 0x00, 0x01,
/* name */ 0x04, 'm', 'a', 'i', 'l',
0x07, 'e', 'x', 'a', 'm', 'p', 'l', 'e',
0xc0, 0x18,
/* MX */ 0x00, 0x0f,
/* ANY */ 0x00, 0xff
};
ASSERT_OK(dns_packet_append_blob(packet, data, sizeof(data), NULL));
ASSERT_OK(dns_packet_extract(packet));
ASSERT_EQ(dns_question_size(packet->question), 2u);
ASSERT_EQ(dns_answer_size(packet->answer), 0u);
key = dns_resource_key_new(DNS_CLASS_IN, DNS_TYPE_A, "www.example.com");
ASSERT_NOT_NULL(key);
ASSERT_TRUE(dns_question_contains_key(packet->question, key));
dns_resource_key_unref(key);
key = dns_resource_key_new(DNS_CLASS_ANY, DNS_TYPE_MX, "mail.example.com");
ASSERT_NOT_NULL(key);
ASSERT_TRUE(dns_question_contains_key(packet->question, key));
dns_resource_key_unref(key);
}
TEST(packet_query_multi_compressed_domain_2) {
_cleanup_(dns_packet_unrefp) DnsPacket *packet = NULL;
DnsResourceKey *key = NULL;
ASSERT_OK(dns_packet_new(&packet, DNS_PROTOCOL_DNS, 0, DNS_PACKET_SIZE_MAX));
ASSERT_NOT_NULL(packet);
dns_packet_truncate(packet, 0);
const uint8_t data[] = {
0x00, 0x42, 0x00, 0x00,
0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/* name */ 0x03, 'w', 'w', 'w',
0x07, 'e', 'x', 'a', 'm', 'p', 'l', 'e',
0x03, 'c', 'o', 'm',
0x00,
/* AAAA */ 0x00, 0x1c,
/* IN */ 0x00, 0x01,
/* name */ 0x04, 'm', 'a', 'i', 'l',
0xc0, 0x10,
/* MX */ 0x00, 0x0f,
/* ANY */ 0x00, 0xff
};
ASSERT_OK(dns_packet_append_blob(packet, data, sizeof(data), NULL));
ASSERT_OK(dns_packet_extract(packet));
ASSERT_EQ(dns_question_size(packet->question), 2u);
ASSERT_EQ(dns_answer_size(packet->answer), 0u);
key = dns_resource_key_new(DNS_CLASS_IN, DNS_TYPE_AAAA, "www.example.com");
ASSERT_NOT_NULL(key);
ASSERT_TRUE(dns_question_contains_key(packet->question, key));
dns_resource_key_unref(key);
key = dns_resource_key_new(DNS_CLASS_ANY, DNS_TYPE_MX, "mail.example.com");
ASSERT_NOT_NULL(key);
ASSERT_TRUE(dns_question_contains_key(packet->question, key));
dns_resource_key_unref(key);
}
DEFINE_TEST_MAIN(LOG_DEBUG)