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resolved: tests for dns_packet_is_reply_for()

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James Coglan
2024-06-11 10:54:18 +01:00
parent e7e2f01d7b
commit 6e85e24376
1 changed files with 138 additions and 0 deletions
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138
src/resolve/test-dns-packet-extract.c
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@@ -1347,6 +1347,144 @@ TEST(packet_validate_reply_llmnr_no_questions) {
ASSERT_ERROR(dns_packet_validate_reply(packet), EBADMSG);
}
/* ================================================================
* dns_packet_is_reply_for()
* ================================================================ */
TEST(packet_is_reply_for_no_question) {
_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, BIT_QR | BIT_AA, DNS_RCODE_SUCCESS,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
ASSERT_OK(dns_packet_append_blob(packet, data, sizeof(data), NULL));
key = dns_resource_key_new(DNS_CLASS_IN, DNS_TYPE_A, "www.example.com");
ASSERT_NOT_NULL(key);
ASSERT_FALSE(dns_packet_is_reply_for(packet, key));
}
TEST(packet_is_reply_for_too_many_questions) {
_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, BIT_QR | BIT_AA, DNS_RCODE_SUCCESS,
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,
/* IN */ 0x00, 0x01
};
ASSERT_OK(dns_packet_append_blob(packet, data, sizeof(data), NULL));
key = dns_resource_key_new(DNS_CLASS_IN, DNS_TYPE_A, "www.example.com");
ASSERT_NOT_NULL(key);
ASSERT_FALSE(dns_packet_is_reply_for(packet, key));
}
TEST(packet_is_reply_for_match_question) {
_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, BIT_QR | BIT_AA, DNS_RCODE_SUCCESS,
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));
key = dns_resource_key_new(DNS_CLASS_IN, DNS_TYPE_A, "www.example.com");
ASSERT_NOT_NULL(key);
ASSERT_TRUE(dns_packet_is_reply_for(packet, key));
}
TEST(packet_is_reply_for_no_match_question) {
_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, BIT_QR | BIT_AA, DNS_RCODE_SUCCESS,
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,
/* AAAA */ 0x00, 0x1c,
/* IN */ 0x00, 0x01
};
ASSERT_OK(dns_packet_append_blob(packet, data, sizeof(data), NULL));
key = dns_resource_key_new(DNS_CLASS_IN, DNS_TYPE_A, "www.example.com");
ASSERT_NOT_NULL(key);
ASSERT_FALSE(dns_packet_is_reply_for(packet, key));
}
TEST(packet_is_reply_for_extract_failure) {
_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, BIT_QR | BIT_AA, DNS_RCODE_SUCCESS,
0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/* name */ 0x03, 'w', 'w', 'w',
0x07, 'e', 'x', 'a', 'm', 'p', 'l', 'e',
0xc0, 0x0c,
/* A */ 0x00, 0x01,
/* IN */ 0x00, 0x01
};
ASSERT_OK(dns_packet_append_blob(packet, data, sizeof(data), NULL));
key = dns_resource_key_new(DNS_CLASS_IN, DNS_TYPE_A, "www.example.com");
ASSERT_NOT_NULL(key);
ASSERT_ERROR(dns_packet_is_reply_for(packet, key), EBADMSG);
}
/* ================================================================
* reply: bad keys
* ================================================================ */