shaba/systemd
1
0
Fork 0
mirror of https://github.com/systemd/systemd.git synced 2024-10-27 10:25:37 +03:00
Code

resolved: tests for dns_packet_extract(); parsing HINFO records

Browse Source
This commit is contained in:
James Coglan 2024-06-11 10:26:02 +01:00
parent 5e663903f3
commit b0a0743b71
1 changed files with 140 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

140
src/resolve/test-dns-packet-extract.c
View File

@ -1788,6 +1788,146 @@ TEST(packet_reply_soa_rdata_partial_final_field) {
ASSERT_EQ(dns_answer_size(packet->answer), 0u);
}
/* ================================================================
* reply: HINFO
* ================================================================ */
TEST(packet_reply_hinfo_basic) {
_cleanup_(dns_packet_unrefp) DnsPacket *packet = NULL;
DnsResourceRecord *rr = 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, 0x01, 0x00, 0x00, 0x00, 0x00,
/* name */ 0x07, 'e', 'x', 'a', 'm', 'p', 'l', 'e',
0x03, 'c', 'o', 'm',
0x00,
/* HINFO */ 0x00, 0x0d,
/* IN */ 0x00, 0x01,
/* ttl */ 0x00, 0x00, 0x0e, 0x10,
/* rdata */ 0x00, 0x14,
/* cpu */ 0x09, 'I', 'n', 't', 'e', 'l', ' ', 'x', '6', '4',
/* os */ 0x09, 'G', 'N', 'U', '/', 'L', 'i', 'n', 'u', 'x'
};
ASSERT_OK(dns_packet_append_blob(packet, data, sizeof(data), NULL));
ASSERT_OK(dns_packet_extract(packet));
ASSERT_EQ(dns_question_size(packet->question), 0u);
ASSERT_EQ(dns_answer_size(packet->answer), 1u);
rr = dns_resource_record_new_full(DNS_CLASS_IN, DNS_TYPE_HINFO, "example.com");
ASSERT_NOT_NULL(rr);
rr->ttl = 3600;
rr->hinfo.cpu = strdup("Intel x64");
rr->hinfo.os = strdup("GNU/Linux");
check_answer_contains(packet, rr, DNS_ANSWER_SECTION_ANSWER | DNS_ANSWER_CACHEABLE);
dns_resource_record_unref(rr);
}
TEST(packet_reply_hinfo_overflow) {
_cleanup_(dns_packet_unrefp) DnsPacket *packet = 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, 0x01, 0x00, 0x00,
/* name */ 0x07, 'e', 'x', 'a', 'm', 'p', 'l', 'e',
0x03, 'c', 'o', 'm',
0x00,
/* HINFO */ 0x00, 0x0d,
/* IN */ 0x00, 0x01,
/* ttl */ 0x00, 0x00, 0x0e, 0x10,
/* rdata */ 0x00, 0x13,
/* cpu */ 0x09, 'I', 'n', 't', 'e', 'l', ' ', 'x', '6', '4',
/* os */ 0x09, 'G', 'N', 'U', '/', 'L', 'i', 'n', 'u', 'x'
};
ASSERT_OK(dns_packet_append_blob(packet, data, sizeof(data), NULL));
ASSERT_ERROR(dns_packet_extract(packet), EBADMSG);
ASSERT_EQ(dns_question_size(packet->question), 0u);
ASSERT_EQ(dns_answer_size(packet->answer), 0u);
}
TEST(packet_reply_hinfo_valid_utf8) {
_cleanup_(dns_packet_unrefp) DnsPacket *packet = NULL;
DnsResourceRecord *rr = 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, 0x01, 0x00, 0x00, 0x00, 0x00,
/* name */ 0x07, 'e', 'x', 'a', 'm', 'p', 'l', 'e',
0x03, 'c', 'o', 'm',
0x00,
/* HINFO */ 0x00, 0x0d,
/* IN */ 0x00, 0x01,
/* ttl */ 0x00, 0x00, 0x0e, 0x10,
/* rdata */ 0x00, 0x17,
/* cpu */ 0x09, 'I', 'n', 't', 'e', 'l', ' ', 'x', '6', '4',
/* os */ 0x0c, 'G', 'N', 0xf0, 0x9d, 0x95, 0x8c, '/', 'L', 'i', 'n', 'u', 'x'
};
ASSERT_OK(dns_packet_append_blob(packet, data, sizeof(data), NULL));
ASSERT_OK(dns_packet_extract(packet));
ASSERT_EQ(dns_question_size(packet->question), 0u);
ASSERT_EQ(dns_answer_size(packet->answer), 1u);
rr = dns_resource_record_new_full(DNS_CLASS_IN, DNS_TYPE_HINFO, "example.com");
ASSERT_NOT_NULL(rr);
rr->ttl = 3600;
rr->hinfo.cpu = strdup("Intel x64");
rr->hinfo.os = strdup("GN𝕌/Linux");
check_answer_contains(packet, rr, DNS_ANSWER_SECTION_ANSWER | DNS_ANSWER_CACHEABLE);
dns_resource_record_unref(rr);
}
TEST(packet_reply_hinfo_invalid_utf8) {
_cleanup_(dns_packet_unrefp) DnsPacket *packet = 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, 0x01, 0x00, 0x00,
/* name */ 0x07, 'e', 'x', 'a', 'm', 'p', 'l', 'e',
0x03, 'c', 'o', 'm',
0x00,
/* HINFO */ 0x00, 0x0d,
/* IN */ 0x00, 0x01,
/* ttl */ 0x00, 0x00, 0x0e, 0x10,
/* rdata */ 0x00, 0x16,
/* cpu */ 0x09, 'I', 'n', 't', 'e', 'l', ' ', 'x', '6', '4',
/* os */ 0x0b, 'G', 'N', 0xf0, 0x9d, 0x95, '/', 'L', 'i', 'n', 'u', 'x'
};
ASSERT_OK(dns_packet_append_blob(packet, data, sizeof(data), NULL));
ASSERT_ERROR(dns_packet_extract(packet), EBADMSG);
ASSERT_EQ(dns_question_size(packet->question), 0u);
ASSERT_EQ(dns_answer_size(packet->answer), 0u);
}
/* ================================================================
* reply: SRV
* ================================================================ */