Adding upstream version 7.94+git20230807.3be01efb1+dfsg.upstream/7.94+git20230807.3be01efb1+dfsgupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 203 insertions, 0 deletions

diff --git a/tests/nmap_dns_test.cc b/tests/nmap_dns_test.cc
new file mode 100644
index 0000000..ad1f196
--- /dev/null
+++ b/tests/nmap_dns_test.cc
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+
+/***************************************************************************
+ * dns_request_generation.cc -- Tests DNS request generation               *
+ *                                                                         *
+ ***********************IMPORTANT NMAP LICENSE TERMS************************
+ *
+ * The Nmap Security Scanner is (C) 1996-2023 Nmap Software LLC ("The Nmap
+ * Project"). Nmap is also a registered trademark of the Nmap Project.
+ *
+ * This program is distributed under the terms of the Nmap Public Source
+ * License (NPSL). The exact license text applying to a particular Nmap
+ * release or source code control revision is contained in the LICENSE
+ * file distributed with that version of Nmap or source code control
+ * revision. More Nmap copyright/legal information is available from
+ * https://nmap.org/book/man-legal.html, and further information on the
+ * NPSL license itself can be found at https://nmap.org/npsl/ . This
+ * header summarizes some key points from the Nmap license, but is no
+ * substitute for the actual license text.
+ *
+ * Nmap is generally free for end users to download and use themselves,
+ * including commercial use. It is available from https://nmap.org.
+ *
+ * The Nmap license generally prohibits companies from using and
+ * redistributing Nmap in commercial products, but we sell a special Nmap
+ * OEM Edition with a more permissive license and special features for
+ * this purpose. See https://nmap.org/oem/
+ *
+ * If you have received a written Nmap license agreement or contract
+ * stating terms other than these (such as an Nmap OEM license), you may
+ * choose to use and redistribute Nmap under those terms instead.
+ *
+ * The official Nmap Windows builds include the Npcap software
+ * (https://npcap.com) for packet capture and transmission. It is under
+ * separate license terms which forbid redistribution without special
+ * permission. So the official Nmap Windows builds may not be redistributed
+ * without special permission (such as an Nmap OEM license).
+ *
+ * Source is provided to this software because we believe users have a
+ * right to know exactly what a program is going to do before they run it.
+ * This also allows you to audit the software for security holes.
+ *
+ * Source code also allows you to port Nmap to new platforms, fix bugs, and add
+ * new features. You are highly encouraged to submit your changes as a Github PR
+ * or by email to the dev@nmap.org mailing list for possible incorporation into
+ * the main distribution. Unless you specify otherwise, it is understood that
+ * you are offering us very broad rights to use your submissions as described in
+ * the Nmap Public Source License Contributor Agreement. This is important
+ * because we fund the project by selling licenses with various terms, and also
+ * because the inability to relicense code has caused devastating problems for
+ * other Free Software projects (such as KDE and NASM).
+ *
+ * The free version of Nmap is distributed in the hope that it will be
+ * useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. Warranties,
+ * indemnification and commercial support are all available through the
+ * Npcap OEM program--see https://nmap.org/oem/
+ *
+ ***************************************************************************/
+
+#include "../nmap_dns.h"
+#include "../NmapOps.h"
+
+#include <iostream>
+
+#define TEST_INCR(pred,acc) \
+if ( !(pred) ) \
+{ \
+  std::cout << "Test " << #pred << " failed at " << __FILE__ << ":" << __LINE__ << std::endl; \
+  ++acc; \
+}
+
+extern NmapOps o;
+int main()
+{
+  std::cout << "Testing nmap_dns" << std::endl;
+o.debugging = 1;
+
+  int ret = 0;
+  std::string target = "scanme.nmap.org";
+  DNS::RECORD_TYPE rt = DNS::A;
+  const size_t buflen = 1500;
+  u8 buf[buflen];
+  size_t reqlen = DNS::Factory::buildSimpleRequest(target, rt, buf, buflen);
+  
+  DNS::Packet p;
+  size_t plen = p.parseFromBuffer(buf, buflen);
+  TEST_INCR(reqlen == plen, ret);
+
+  DNS::Query * q = &*p.queries.begin();
+  TEST_INCR(q->name == target, ret);
+  TEST_INCR(q->record_class == DNS::CLASS_IN, ret);
+  TEST_INCR(q->record_type == rt, ret);
+
+
+  // This is a possible answere for an A query for scanme.nmap.org
+  const char ipp[] = "45.33.32.156";
+  const size_t answere_len = 49;
+  const u8 answere_buf[] = { 0x92, 0xdc, // Trsnsaction ID
+                       0x81, 0x80, // Flags
+                       0x00, 0x01, // Questions count
+                       0x00, 0x01, // Answers RRs count
+                       0x00, 0x00, // Authorities RRs count
+                       0x00, 0x00, // Additionals RRs count
+                       0x06, // Label length <-- [12]
+                       0x73, 0x63, 0x61, 0x6e, 0x6d, 0x65, // "scanme"
+                       0x04, // Label length
+                       0x6e, 0x6d, 0x61, 0x70, // "nmap"
+                       0x03, // Label length
+                       0x6f, 0x72, 0x67, // "org"
+                       0x00, // Name terminator
+                       0x00, 0x01, // A
+                       0x00, 0x01, // CLASS_IN
+                       0xc0, 0x0c, // Compressed name pointer to offset 12
+                       0x00, 0x01, // A
+                       0x00, 0x01, // CLASS_IN
+                       0x00, 0x00, 0x0e, 0x0f, // TTL 3599
+                       0x00, 0x04, // Record Length
+                       0x2d, 0x21, 0x20, 0x9c }; // 45.33.32.156
+
+  plen = p.parseFromBuffer(answere_buf, answere_len);
+  TEST_INCR(answere_len == plen, ret);
+
+  q = &*p.queries.begin();
+  TEST_INCR(q->name == target, ret);
+  TEST_INCR(q->record_class == DNS::CLASS_IN, ret);
+  TEST_INCR(q->record_type == rt, ret );
+
+  DNS::Answer * a = &*p.answers.begin();
+  TEST_INCR(a->name == target, ret );
+  TEST_INCR(a->record_class == DNS::CLASS_IN, ret);
+  TEST_INCR(a->record_type == DNS::A, ret);
+  TEST_INCR(a->ttl == 3599, ret)
+
+  DNS::A_Record * ar = static_cast<DNS::A_Record *>(a->record);
+  char ar_ipp[INET6_ADDRSTRLEN];
+  sockaddr_storage_iptop(&ar->value, ar_ipp);
+  TEST_INCR(!strcmp(ipp, ar_ipp), ret);
+
+  const size_t ptr_answere_len = 72;
+  std::string ptr_target;
+  TEST_INCR(DNS::Factory::ipToPtr(ar->value, ptr_target), ret);
+  TEST_INCR(ptr_target == "156.32.33.45.in-addr.arpa", ret);
+  const u8 ptr_answere[] = { 0x08, 0xf2, // ID
+                               0x81, 0x80, // Flags
+                               0x00, 0x01, // Questions count
+                               0x00, 0x01, // Answers RRs count
+                               0x00, 0x00, // Authorities RRs count
+                               0x00, 0x00, // Additionals RRs count
+                               0x03, // Label length
+                               0x31, 0x35, 0x36, // "156"
+                               0x02, // Label length
+                               0x33, 0x32, // "32"
+                               0x02, // Label length
+                               0x33, 0x33, // "33"
+                               0x02, // Label length
+                               0x34, 0x35, // "45"
+                               0x07, // Label length
+                               0x69, 0x6e, 0x2d, 0x61, 0x64, 0x64, 0x72, // "in-addr"
+                               0x04, // Label length
+                               0x61, 0x72, 0x70, 0x61, // "arpa"
+                               0x00, // Name terminator
+                               0x00, 0x0c, // PTR
+                               0x00, 0x01, // CLASS_IN
+                               0xc0, 0x0c, // Compressed name pointer to offset 12
+                               0x00, 0x0c, // PTR
+                               0x00, 0x01, // CLASS_IN
+                               0x00, 0x01, 0x51, 0x78, // TTL 86392
+                               0x00, 0x11, // Record Length
+                               0x06, // Label length
+                               0x73, 0x63, 0x61, 0x6e, 0x6d, 0x65, // "scanme"
+                               0x04, // Label length
+                               0x6e, 0x6d, 0x61, 0x70, // "nmap"
+                               0x03, // Label length
+                               0x6f, 0x72, 0x67, // "org"
+                               0x00 };  // Name terminator
+
+  plen = p.parseFromBuffer(ptr_answere, ptr_answere_len);
+  TEST_INCR(plen == ptr_answere_len, ret);
+  TEST_INCR(p.id == 0x08f2, ret);
+  TEST_INCR(p.flags == 0x8180, ret);
+  TEST_INCR(p.queries.size() == 1, ret);
+  TEST_INCR(p.answers.size() == 1, ret);
+
+  q = &*p.queries.begin();
+  TEST_INCR(q->name == ptr_target, ret);
+  TEST_INCR(q->record_class == DNS::CLASS_IN, ret);
+  TEST_INCR(q->record_type == DNS::PTR, ret);
+
+  a = &*p.answers.begin();
+  TEST_INCR(a->name == ptr_target, ret);
+  TEST_INCR(a->record_class == DNS::CLASS_IN, ret);
+  TEST_INCR(a->record_type == DNS::PTR, ret);
+  TEST_INCR(a->length == 0x11, ret);
+  TEST_INCR(a->ttl == 86392, ret);
+
+  DNS::PTR_Record * r = static_cast<DNS::PTR_Record *>(a->record);
+  TEST_INCR(r->value == target, ret);
+
+  if(ret) std::cout << "Testing nmap_dns finished with errors" << std::endl;
+  else std::cout << "Testing nmap_dns finished without errors" << std::endl;
+
+  return ret; // 0 means ok
+}