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resolved: tests for dns_packet_extract(); parsing SOA records
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James Coglan
parent
8a5e122d95
commit
3d0df33fc2
@ -1527,4 +1527,205 @@ TEST(packet_reply_cname_full_compression) {
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check_cname_reply_compression(data, sizeof(data));
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}
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/* ================================================================
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* reply: SOA
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* ================================================================ */
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TEST(packet_reply_soa_basic) {
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_cleanup_(dns_packet_unrefp) DnsPacket *packet = NULL;
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DnsResourceRecord *rr = NULL;
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ASSERT_OK(dns_packet_new(&packet, DNS_PROTOCOL_DNS, 0, DNS_PACKET_SIZE_MAX));
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ASSERT_NOT_NULL(packet);
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dns_packet_truncate(packet, 0);
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const uint8_t data[] = {
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0x00, 0x42, BIT_QR | BIT_AA, DNS_RCODE_NXDOMAIN,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00,
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/* name */ 0x07, 'e', 'x', 'a', 'm', 'p', 'l', 'e',
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0x03, 'c', 'o', 'm',
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0x00,
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/* SOA */ 0x00, 0x06,
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/* IN */ 0x00, 0x01,
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/* ttl */ 0x00, 0x00, 0x0e, 0x10,
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/* rdata */ 0x00, 0x27,
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/* mname */ 0x03, 'n', 's', '0',
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0xc0, 0x0c,
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/* rname */ 0x0a, 'h', 'o', 's', 't', 'm', 'a', 's', 't', 'e', 'r',
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0xc0, 0x0c,
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/* serial */ 0x78, 0x85, 0x75, 0x2e,
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/* refresh */ 0x00, 0x02, 0xa3, 0x00,
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/* retry */ 0x00, 0x00, 0x00, 0xb4,
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/* expire */ 0x00, 0x24, 0xea, 0x00,
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/* minimum */ 0x00, 0x00, 0x00, 0x3c
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};
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ASSERT_OK(dns_packet_append_blob(packet, data, sizeof(data), NULL));
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ASSERT_OK(dns_packet_extract(packet));
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ASSERT_EQ(dns_question_size(packet->question), 0u);
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ASSERT_EQ(dns_answer_size(packet->answer), 1u);
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rr = dns_resource_record_new_full(DNS_CLASS_IN, DNS_TYPE_SOA, "example.com");
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ASSERT_NOT_NULL(rr);
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rr->ttl = 3600;
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rr->soa.mname = strdup("ns0.example.com");
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rr->soa.rname = strdup("hostmaster.example.com");
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rr->soa.serial = 2022012206;
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rr->soa.refresh = 172800;
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rr->soa.retry = 180;
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rr->soa.expire = 2419200;
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rr->soa.minimum = 60;
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check_answer_contains(packet, rr, DNS_ANSWER_SECTION_AUTHORITY);
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dns_resource_record_unref(rr);
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}
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TEST(packet_reply_soa_rdata_overflow) {
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_cleanup_(dns_packet_unrefp) DnsPacket *packet = NULL;
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ASSERT_OK(dns_packet_new(&packet, DNS_PROTOCOL_DNS, 0, DNS_PACKET_SIZE_MAX));
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ASSERT_NOT_NULL(packet);
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dns_packet_truncate(packet, 0);
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const uint8_t data[] = {
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0x00, 0x42, BIT_QR | BIT_AA, DNS_RCODE_NXDOMAIN,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00,
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/* name */ 0x07, 'e', 'x', 'a', 'm', 'p', 'l', 'e',
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0x03, 'c', 'o', 'm',
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0x00,
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/* SOA */ 0x00, 0x06,
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/* IN */ 0x00, 0x01,
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/* ttl */ 0x00, 0x00, 0x0e, 0x10,
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/* rdata */ 0x00, 0x26,
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/* mname */ 0x03, 'n', 's', '0',
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0xc0, 0x0c,
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/* rname */ 0x0a, 'h', 'o', 's', 't', 'm', 'a', 's', 't', 'e', 'r',
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0xc0, 0x0c,
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/* serial */ 0x78, 0x85, 0x75, 0x2e,
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/* refresh */ 0x00, 0x02, 0xa3, 0x00,
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/* retry */ 0x00, 0x00, 0x00, 0xb4,
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/* expire */ 0x00, 0x24, 0xea, 0x00,
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/* minimum */ 0x00, 0x00, 0x00, 0x3c
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};
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ASSERT_OK(dns_packet_append_blob(packet, data, sizeof(data), NULL));
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ASSERT_ERROR(dns_packet_extract(packet), EBADMSG);
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ASSERT_EQ(dns_question_size(packet->question), 0u);
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ASSERT_EQ(dns_answer_size(packet->answer), 0u);
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}
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TEST(packet_reply_soa_rdata_underminated_domain) {
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_cleanup_(dns_packet_unrefp) DnsPacket *packet = NULL;
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ASSERT_OK(dns_packet_new(&packet, DNS_PROTOCOL_DNS, 0, DNS_PACKET_SIZE_MAX));
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ASSERT_NOT_NULL(packet);
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dns_packet_truncate(packet, 0);
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const uint8_t data[] = {
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0x00, 0x42, BIT_QR | BIT_AA, DNS_RCODE_NXDOMAIN,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00,
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/* name */ 0x07, 'e', 'x', 'a', 'm', 'p', 'l', 'e',
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0x03, 'c', 'o', 'm',
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0x00,
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/* SOA */ 0x00, 0x06,
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/* IN */ 0x00, 0x01,
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/* ttl */ 0x00, 0x00, 0x0e, 0x10,
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/* rdata */ 0x00, 0x31,
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/* mname */ 0x03, 'n', 's', '0',
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0x07, 'e', 'x', 'a', 'm', 'p', 'l', 'e',
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0x03, 'c', 'o', 'm',
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/* missing 0x00 */
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/* rname */ 0x0a, 'h', 'o', 's', 't', 'm', 'a', 's', 't', 'e', 'r',
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0xc0, 0x0c,
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/* serial */ 0x78, 0x85, 0x75, 0x2e,
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/* refresh */ 0x00, 0x02, 0xa3, 0x00,
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/* retry */ 0x00, 0x00, 0x00, 0xb4,
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/* expire */ 0x00, 0x24, 0xea, 0x00,
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/* minimum */ 0x00, 0x00, 0x00, 0x3c
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};
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ASSERT_OK(dns_packet_append_blob(packet, data, sizeof(data), NULL));
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ASSERT_ERROR(dns_packet_extract(packet), EBADMSG);
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ASSERT_EQ(dns_question_size(packet->question), 0u);
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ASSERT_EQ(dns_answer_size(packet->answer), 0u);
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}
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TEST(packet_reply_soa_rdata_missing_field) {
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_cleanup_(dns_packet_unrefp) DnsPacket *packet = NULL;
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ASSERT_OK(dns_packet_new(&packet, DNS_PROTOCOL_DNS, 0, DNS_PACKET_SIZE_MAX));
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ASSERT_NOT_NULL(packet);
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dns_packet_truncate(packet, 0);
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const uint8_t data[] = {
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0x00, 0x42, BIT_QR | BIT_AA, DNS_RCODE_NXDOMAIN,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00,
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/* name */ 0x07, 'e', 'x', 'a', 'm', 'p', 'l', 'e',
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0x03, 'c', 'o', 'm',
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0x00,
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/* SOA */ 0x00, 0x06,
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/* IN */ 0x00, 0x01,
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/* ttl */ 0x00, 0x00, 0x0e, 0x10,
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/* rdata */ 0x00, 0x23,
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/* mname */ 0x03, 'n', 's', '0',
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0xc0, 0x0c,
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/* rname */ 0x0a, 'h', 'o', 's', 't', 'm', 'a', 's', 't', 'e', 'r',
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0xc0, 0x0c,
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/* serial */ 0x78, 0x85, 0x75, 0x2e,
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/* refresh */ 0x00, 0x02, 0xa3, 0x00,
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/* retry */ 0x00, 0x00, 0x00, 0xb4,
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/* expire */ 0x00, 0x24, 0xea, 0x00
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/* minimum (missing) */
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};
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ASSERT_OK(dns_packet_append_blob(packet, data, sizeof(data), NULL));
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ASSERT_ERROR(dns_packet_extract(packet), EMSGSIZE);
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ASSERT_EQ(dns_question_size(packet->question), 0u);
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ASSERT_EQ(dns_answer_size(packet->answer), 0u);
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}
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TEST(packet_reply_soa_rdata_partial_final_field) {
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_cleanup_(dns_packet_unrefp) DnsPacket *packet = NULL;
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ASSERT_OK(dns_packet_new(&packet, DNS_PROTOCOL_DNS, 0, DNS_PACKET_SIZE_MAX));
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ASSERT_NOT_NULL(packet);
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dns_packet_truncate(packet, 0);
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const uint8_t data[] = {
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0x00, 0x42, BIT_QR | BIT_AA, DNS_RCODE_NXDOMAIN,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00,
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/* name */ 0x07, 'e', 'x', 'a', 'm', 'p', 'l', 'e',
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0x03, 'c', 'o', 'm',
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0x00,
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/* SOA */ 0x00, 0x06,
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/* IN */ 0x00, 0x01,
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/* ttl */ 0x00, 0x00, 0x0e, 0x10,
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/* rdata */ 0x00, 0x26,
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/* mname */ 0x03, 'n', 's', '0',
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0xc0, 0x0c,
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/* rname */ 0x0a, 'h', 'o', 's', 't', 'm', 'a', 's', 't', 'e', 'r',
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0xc0, 0x0c,
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/* serial */ 0x78, 0x85, 0x75, 0x2e,
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/* refresh */ 0x00, 0x02, 0xa3, 0x00,
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/* retry */ 0x00, 0x00, 0x00, 0xb4,
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/* expire */ 0x00, 0x24, 0xea, 0x00,
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/* minimum */ 0x00, 0x00, 0x00
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};
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ASSERT_OK(dns_packet_append_blob(packet, data, sizeof(data), NULL));
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ASSERT_ERROR(dns_packet_extract(packet), EMSGSIZE);
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ASSERT_EQ(dns_question_size(packet->question), 0u);
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ASSERT_EQ(dns_answer_size(packet->answer), 0u);
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}
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DEFINE_TEST_MAIN(LOG_DEBUG)
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