Adding upstream version 86.0.1.upstream/86.0.1upstream

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

18 files changed, 1337 insertions, 0 deletions

diff --git a/security/nss/cpputil/.clang-format b/security/nss/cpputil/.clang-format
new file mode 100644
index 0000000000..06e3c5115f
--- /dev/null
+++ b/security/nss/cpputil/.clang-format
@@ -0,0 +1,4 @@
+---
+Language: Cpp
+BasedOnStyle: Google
+...
diff --git a/security/nss/cpputil/Makefile b/security/nss/cpputil/Makefile
new file mode 100644
index 0000000000..28e0f61605
--- /dev/null
+++ b/security/nss/cpputil/Makefile
@@ -0,0 +1,47 @@
+#! gmake
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+#######################################################################
+# (1) Include initial platform-independent assignments (MANDATORY).   #
+#######################################################################
+
+include manifest.mn
+
+#######################################################################
+# (2) Include "global" configuration information. (OPTIONAL)          #
+#######################################################################
+
+include $(CORE_DEPTH)/coreconf/config.mk
+
+#######################################################################
+# (3) Include "component" configuration information. (OPTIONAL)       #
+#######################################################################
+
+ifeq (WINNT,$(OS_ARCH))
+OS_CFLAGS += -EHsc
+else
+CXXFLAGS += -std=c++0x
+endif
+
+#######################################################################
+# (4) Include "local" platform-dependent assignments (OPTIONAL).      #
+#######################################################################
+
+#######################################################################
+# (5) Execute "global" rules. (OPTIONAL)                              #
+#######################################################################
+
+include $(CORE_DEPTH)/coreconf/rules.mk
+
+#######################################################################
+# (6) Execute "component" rules. (OPTIONAL)                           #
+#######################################################################
+
+
+
+#######################################################################
+# (7) Execute "local" rules. (OPTIONAL).                              #
+#######################################################################
diff --git a/security/nss/cpputil/README b/security/nss/cpputil/README
new file mode 100644
index 0000000000..22297dd33f
--- /dev/null
+++ b/security/nss/cpputil/README
@@ -0,0 +1,11 @@
+######################################
+## PLEASE READ BEFORE USING CPPUTIL ##
+######################################
+
+This is a static library supposed to be mainly used by NSS internally. We use
+it for testing, fuzzing, and a few new tools written in C++ that we're
+experimenting with.
+
+You might find it handy to use for your own projects but please be aware that
+we will make no promises your application won't break in the future. We will
+provide no support if you decide to link against it.
diff --git a/security/nss/cpputil/cpputil.gyp b/security/nss/cpputil/cpputil.gyp
new file mode 100644
index 0000000000..5042acf5cd
--- /dev/null
+++ b/security/nss/cpputil/cpputil.gyp
@@ -0,0 +1,29 @@
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+{
+  'includes': [
+    '../coreconf/config.gypi',
+  ],
+  'targets': [
+    {
+      'target_name': 'cpputil',
+      'type': 'static_library',
+      'sources': [
+        'databuffer.cc',
+        'dummy_io.cc',
+        'dummy_io_fwd.cc',
+        'tls_parser.cc',
+      ],
+      'dependencies': [
+        '<(DEPTH)/exports.gyp:nss_exports',
+      ],
+      'direct_dependent_settings': {
+        'include_dirs': [
+          '<(DEPTH)/cpputil',
+        ],
+      },
+    },
+  ],
+}
+
diff --git a/security/nss/cpputil/cpputil.h b/security/nss/cpputil/cpputil.h
new file mode 100644
index 0000000000..017ce9bfc5
--- /dev/null
+++ b/security/nss/cpputil/cpputil.h
@@ -0,0 +1,12 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef cpputil_h__
+#define cpputil_h__
+
+static unsigned char* toUcharPtr(const uint8_t* v) {
+  return const_cast<unsigned char*>(static_cast<const unsigned char*>(v));
+}
+
+#endif  // cpputil_h__
diff --git a/security/nss/cpputil/databuffer.cc b/security/nss/cpputil/databuffer.cc
new file mode 100644
index 0000000000..1420d76b45
--- /dev/null
+++ b/security/nss/cpputil/databuffer.cc
@@ -0,0 +1,127 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "databuffer.h"
+#include <algorithm>
+#include <cassert>
+#include <cstring>
+#include <iomanip>
+#include <iostream>
+#if defined(WIN32) || defined(WIN64)
+#include <winsock2.h>
+#else
+#include <arpa/inet.h>
+#endif
+
+namespace nss_test {
+
+void DataBuffer::Assign(const uint8_t* d, size_t l) {
+  if (d) {
+    Allocate(l);
+    memcpy(static_cast<void*>(data_), static_cast<const void*>(d), l);
+  } else {
+    assert(l == 0);
+    data_ = nullptr;
+    len_ = 0;
+  }
+}
+
+// Write will do a new allocation and expand the size of the buffer if needed.
+// Returns the offset of the end of the write.
+size_t DataBuffer::Write(size_t index, const uint8_t* val, size_t count) {
+  assert(val);
+  if (index + count > len_) {
+    size_t newlen = index + count;
+    uint8_t* tmp = new uint8_t[newlen];  // Always > 0.
+    if (data_) {
+      memcpy(static_cast<void*>(tmp), static_cast<const void*>(data_), len_);
+    }
+    if (index > len_) {
+      memset(static_cast<void*>(tmp + len_), 0, index - len_);
+    }
+    delete[] data_;
+    data_ = tmp;
+    len_ = newlen;
+  }
+  if (data_) {
+    memcpy(static_cast<void*>(data_ + index), static_cast<const void*>(val),
+           count);
+  }
+  return index + count;
+}
+
+// Write an integer, also performing host-to-network order conversion.
+// Returns the offset of the end of the write.
+size_t DataBuffer::Write(size_t index, uint32_t val, size_t count) {
+  assert(count <= sizeof(uint32_t));
+  uint32_t nvalue = htonl(val);
+  auto* addr = reinterpret_cast<const uint8_t*>(&nvalue);
+  return Write(index, addr + sizeof(uint32_t) - count, count);
+}
+
+void DataBuffer::Splice(const uint8_t* ins, size_t ins_len, size_t index,
+                        size_t remove) {
+  assert(ins);
+  uint8_t* old_value = data_;
+  size_t old_len = len_;
+
+  // The amount of stuff remaining from the tail of the old.
+  size_t tail_len = old_len - (std::min)(old_len, index + remove);
+  // The new length: the head of the old, the new, and the tail of the old.
+  len_ = index + ins_len + tail_len;
+  data_ = new uint8_t[len_ ? len_ : 1];
+
+  // The head of the old.
+  if (old_value) {
+    Write(0, old_value, (std::min)(old_len, index));
+  }
+  // Maybe a gap.
+  if (old_value && index > old_len) {
+    memset(old_value + index, 0, index - old_len);
+  }
+  // The new.
+  Write(index, ins, ins_len);
+  // The tail of the old.
+  if (tail_len > 0) {
+    Write(index + ins_len, old_value + index + remove, tail_len);
+  }
+
+  delete[] old_value;
+}
+
+// This can't use the same trick as Write(), since we might be reading from a
+// smaller data source.
+bool DataBuffer::Read(size_t index, size_t count, uint64_t* val) const {
+  assert(count <= sizeof(uint64_t));
+  assert(val);
+  if ((index > len()) || (count > (len() - index))) {
+    return false;
+  }
+  *val = 0;
+  for (size_t i = 0; i < count; ++i) {
+    *val = (*val << 8) | data()[index + i];
+  }
+  return true;
+}
+
+bool DataBuffer::Read(size_t index, size_t count, uint32_t* val) const {
+  assert(count <= sizeof(uint32_t));
+  uint64_t tmp;
+
+  if (!Read(index, count, &tmp)) {
+    return false;
+  }
+  *val = tmp & 0xffffffff;
+  return true;
+}
+
+size_t DataBuffer::logging_limit = 32;
+
+/* static */ void DataBuffer::SetLogLimit(size_t limit) {
+  DataBuffer::logging_limit = limit;
+}
+
+}  // namespace nss_test
diff --git a/security/nss/cpputil/databuffer.h b/security/nss/cpputil/databuffer.h
new file mode 100644
index 0000000000..4bedd075db
--- /dev/null
+++ b/security/nss/cpputil/databuffer.h
@@ -0,0 +1,111 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef databuffer_h__
+#define databuffer_h__
+
+#include <algorithm>
+#include <cstring>
+#include <iomanip>
+#include <iostream>
+
+namespace nss_test {
+
+class DataBuffer {
+ public:
+  DataBuffer() : data_(nullptr), len_(0) {}
+  DataBuffer(const uint8_t* d, size_t l) : data_(nullptr), len_(0) {
+    Assign(d, l);
+  }
+  DataBuffer(const DataBuffer& other) : data_(nullptr), len_(0) {
+    Assign(other);
+  }
+  explicit DataBuffer(size_t l) : data_(nullptr), len_(0) { Allocate(l); }
+  ~DataBuffer() { delete[] data_; }
+
+  DataBuffer& operator=(const DataBuffer& other) {
+    if (&other != this) {
+      Assign(other);
+    }
+    return *this;
+  }
+
+  void Allocate(size_t l) {
+    delete[] data_;
+    data_ = new uint8_t[l ? l : 1]();  // Don't depend on new [0].
+    len_ = l;
+  }
+
+  void Truncate(size_t l) { len_ = (std::min)(len_, l); }
+
+  void Assign(const DataBuffer& other) { Assign(other.data(), other.len()); }
+
+  void Assign(const uint8_t* d, size_t l);
+
+  // Write will do a new allocation and expand the size of the buffer if needed.
+  // Returns the offset of the end of the write.
+  size_t Write(size_t index, const uint8_t* val, size_t count);
+  size_t Write(size_t index, const DataBuffer& buf) {
+    return Write(index, buf.data(), buf.len());
+  }
+
+  // Write an integer, also performing host-to-network order conversion.
+  // Returns the offset of the end of the write.
+  size_t Write(size_t index, uint32_t val, size_t count);
+
+  // Starting at |index|, remove |remove| bytes and replace them with the
+  // contents of |buf|.
+  void Splice(const DataBuffer& buf, size_t index, size_t remove = 0) {
+    Splice(buf.data(), buf.len(), index, remove);
+  }
+
+  void Splice(const uint8_t* ins, size_t ins_len, size_t index,
+              size_t remove = 0);
+  void Append(const DataBuffer& buf) { Splice(buf, len_); }
+
+  bool Read(size_t index, size_t count, uint64_t* val) const;
+  bool Read(size_t index, size_t count, uint32_t* val) const;
+
+  const uint8_t* data() const { return data_; }
+  uint8_t* data() { return data_; }
+  size_t len() const { return len_; }
+  bool empty() const { return len_ == 0; }
+
+  static void SetLogLimit(size_t limit);
+  friend std::ostream& operator<<(std::ostream& stream, const DataBuffer& buf);
+
+ private:
+  static size_t logging_limit;
+  uint8_t* data_;
+  size_t len_;
+};
+
+inline std::ostream& operator<<(std::ostream& stream, const DataBuffer& buf) {
+  stream << "[" << buf.len() << "] ";
+  for (size_t i = 0; i < buf.len(); ++i) {
+    if (i >= DataBuffer::logging_limit) {
+      stream << "...";
+      break;
+    }
+    stream << std::hex << std::setfill('0') << std::setw(2)
+           << static_cast<unsigned>(buf.data()[i]);
+  }
+  stream << std::dec;
+  return stream;
+}
+
+inline bool operator==(const DataBuffer& a, const DataBuffer& b) {
+  return (a.empty() && b.empty()) ||
+         (a.len() == b.len() && 0 == memcmp(a.data(), b.data(), a.len()));
+}
+
+inline bool operator!=(const DataBuffer& a, const DataBuffer& b) {
+  return !(a == b);
+}
+
+}  // namespace nss_test
+
+#endif
diff --git a/security/nss/cpputil/dummy_io.cc b/security/nss/cpputil/dummy_io.cc
new file mode 100644
index 0000000000..ef45db8339
--- /dev/null
+++ b/security/nss/cpputil/dummy_io.cc
@@ -0,0 +1,225 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include <assert.h>
+#include <iostream>
+
+#include "prerror.h"
+#include "prio.h"
+
+#include "dummy_io.h"
+
+#define UNIMPLEMENTED()                                        \
+  std::cerr << "Unimplemented: " << __FUNCTION__ << std::endl; \
+  assert(false);
+
+extern const struct PRIOMethods DummyMethodsForward;
+
+ScopedPRFileDesc DummyIOLayerMethods::CreateFD(PRDescIdentity id,
+                                               DummyIOLayerMethods *methods) {
+  ScopedPRFileDesc fd(PR_CreateIOLayerStub(id, &DummyMethodsForward));
+  assert(fd);
+  if (!fd) {
+    return nullptr;
+  }
+  fd->secret = reinterpret_cast<PRFilePrivate *>(methods);
+  return fd;
+}
+
+PRStatus DummyIOLayerMethods::Close(PRFileDesc *f) {
+  f->secret = nullptr;
+  f->dtor(f);
+  return PR_SUCCESS;
+}
+
+int32_t DummyIOLayerMethods::Read(PRFileDesc *f, void *buf, int32_t length) {
+  UNIMPLEMENTED();
+  return -1;
+}
+
+int32_t DummyIOLayerMethods::Write(PRFileDesc *f, const void *buf,
+                                   int32_t length) {
+  UNIMPLEMENTED();
+  return -1;
+}
+
+int32_t DummyIOLayerMethods::Available(PRFileDesc *f) {
+  UNIMPLEMENTED();
+  return -1;
+}
+
+int64_t DummyIOLayerMethods::Available64(PRFileDesc *f) {
+  UNIMPLEMENTED();
+  return -1;
+}
+
+PRStatus DummyIOLayerMethods::Sync(PRFileDesc *f) {
+  UNIMPLEMENTED();
+  return PR_FAILURE;
+}
+
+int32_t DummyIOLayerMethods::Seek(PRFileDesc *f, int32_t offset,
+                                  PRSeekWhence how) {
+  UNIMPLEMENTED();
+  return -1;
+}
+
+int64_t DummyIOLayerMethods::Seek64(PRFileDesc *f, int64_t offset,
+                                    PRSeekWhence how) {
+  UNIMPLEMENTED();
+  return -1;
+}
+
+PRStatus DummyIOLayerMethods::FileInfo(PRFileDesc *f, PRFileInfo *info) {
+  UNIMPLEMENTED();
+  return PR_FAILURE;
+}
+
+PRStatus DummyIOLayerMethods::FileInfo64(PRFileDesc *f, PRFileInfo64 *info) {
+  UNIMPLEMENTED();
+  return PR_FAILURE;
+}
+
+int32_t DummyIOLayerMethods::Writev(PRFileDesc *f, const PRIOVec *iov,
+                                    int32_t iov_size, PRIntervalTime to) {
+  UNIMPLEMENTED();
+  return -1;
+}
+
+PRStatus DummyIOLayerMethods::Connect(PRFileDesc *f, const PRNetAddr *addr,
+                                      PRIntervalTime to) {
+  UNIMPLEMENTED();
+  return PR_FAILURE;
+}
+
+PRFileDesc *DummyIOLayerMethods::Accept(PRFileDesc *sd, PRNetAddr *addr,
+                                        PRIntervalTime to) {
+  UNIMPLEMENTED();
+  return nullptr;
+}
+
+PRStatus DummyIOLayerMethods::Bind(PRFileDesc *f, const PRNetAddr *addr) {
+  UNIMPLEMENTED();
+  return PR_FAILURE;
+}
+
+PRStatus DummyIOLayerMethods::Listen(PRFileDesc *f, int32_t depth) {
+  UNIMPLEMENTED();
+  return PR_FAILURE;
+}
+
+PRStatus DummyIOLayerMethods::Shutdown(PRFileDesc *f, int32_t how) {
+  return PR_SUCCESS;
+}
+
+int32_t DummyIOLayerMethods::Recv(PRFileDesc *f, void *buf, int32_t buflen,
+                                  int32_t flags, PRIntervalTime to) {
+  UNIMPLEMENTED();
+  return -1;
+}
+
+// Note: this is always nonblocking and assumes a zero timeout.
+int32_t DummyIOLayerMethods::Send(PRFileDesc *f, const void *buf,
+                                  int32_t amount, int32_t flags,
+                                  PRIntervalTime to) {
+  return Write(f, buf, amount);
+}
+
+int32_t DummyIOLayerMethods::Recvfrom(PRFileDesc *f, void *buf, int32_t amount,
+                                      int32_t flags, PRNetAddr *addr,
+                                      PRIntervalTime to) {
+  UNIMPLEMENTED();
+  return -1;
+}
+
+int32_t DummyIOLayerMethods::Sendto(PRFileDesc *f, const void *buf,
+                                    int32_t amount, int32_t flags,
+                                    const PRNetAddr *addr, PRIntervalTime to) {
+  UNIMPLEMENTED();
+  return -1;
+}
+
+int16_t DummyIOLayerMethods::Poll(PRFileDesc *f, int16_t in_flags,
+                                  int16_t *out_flags) {
+  UNIMPLEMENTED();
+  return -1;
+}
+
+int32_t DummyIOLayerMethods::AcceptRead(PRFileDesc *sd, PRFileDesc **nd,
+                                        PRNetAddr **raddr, void *buf,
+                                        int32_t amount, PRIntervalTime t) {
+  UNIMPLEMENTED();
+  return -1;
+}
+
+int32_t DummyIOLayerMethods::TransmitFile(PRFileDesc *sd, PRFileDesc *f,
+                                          const void *headers, int32_t hlen,
+                                          PRTransmitFileFlags flags,
+                                          PRIntervalTime t) {
+  UNIMPLEMENTED();
+  return -1;
+}
+
+// TODO: Modify to return unique names for each channel
+// somehow, as opposed to always the same static address. The current
+// implementation messes up the session cache, which is why it's off
+// elsewhere
+PRStatus DummyIOLayerMethods::Getpeername(PRFileDesc *f, PRNetAddr *addr) {
+  addr->inet.family = PR_AF_INET;
+  addr->inet.port = 0;
+  addr->inet.ip = 0;
+
+  return PR_SUCCESS;
+}
+
+PRStatus DummyIOLayerMethods::Getsockname(PRFileDesc *f, PRNetAddr *addr) {
+  UNIMPLEMENTED();
+  return PR_FAILURE;
+}
+
+PRStatus DummyIOLayerMethods::Getsockoption(PRFileDesc *f,
+                                            PRSocketOptionData *opt) {
+  switch (opt->option) {
+    case PR_SockOpt_Nonblocking:
+      opt->value.non_blocking = PR_TRUE;
+      return PR_SUCCESS;
+    default:
+      UNIMPLEMENTED();
+      break;
+  }
+
+  return PR_FAILURE;
+}
+
+PRStatus DummyIOLayerMethods::Setsockoption(PRFileDesc *f,
+                                            const PRSocketOptionData *opt) {
+  switch (opt->option) {
+    case PR_SockOpt_Nonblocking:
+      return PR_SUCCESS;
+    case PR_SockOpt_NoDelay:
+      return PR_SUCCESS;
+    default:
+      UNIMPLEMENTED();
+      break;
+  }
+
+  return PR_FAILURE;
+}
+
+int32_t DummyIOLayerMethods::Sendfile(PRFileDesc *out, PRSendFileData *in,
+                                      PRTransmitFileFlags flags,
+                                      PRIntervalTime to) {
+  UNIMPLEMENTED();
+  return -1;
+}
+
+PRStatus DummyIOLayerMethods::ConnectContinue(PRFileDesc *f, int16_t flags) {
+  UNIMPLEMENTED();
+  return PR_FAILURE;
+}
+
+int32_t DummyIOLayerMethods::Reserved(PRFileDesc *f) {
+  UNIMPLEMENTED();
+  return -1;
+}
diff --git a/security/nss/cpputil/dummy_io.h b/security/nss/cpputil/dummy_io.h
new file mode 100644
index 0000000000..e10ee1eee3
--- /dev/null
+++ b/security/nss/cpputil/dummy_io.h
@@ -0,0 +1,62 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef dummy_io_h__
+#define dummy_io_h__
+
+#include "prerror.h"
+#include "prio.h"
+
+#include "nss_scoped_ptrs.h"
+
+class DummyIOLayerMethods {
+ public:
+  static ScopedPRFileDesc CreateFD(PRDescIdentity id,
+                                   DummyIOLayerMethods *methods);
+
+  virtual PRStatus Close(PRFileDesc *f);
+  virtual int32_t Read(PRFileDesc *f, void *buf, int32_t length);
+  virtual int32_t Write(PRFileDesc *f, const void *buf, int32_t length);
+  virtual int32_t Available(PRFileDesc *f);
+  virtual int64_t Available64(PRFileDesc *f);
+  virtual PRStatus Sync(PRFileDesc *f);
+  virtual int32_t Seek(PRFileDesc *f, int32_t offset, PRSeekWhence how);
+  virtual int64_t Seek64(PRFileDesc *f, int64_t offset, PRSeekWhence how);
+  virtual PRStatus FileInfo(PRFileDesc *f, PRFileInfo *info);
+  virtual PRStatus FileInfo64(PRFileDesc *f, PRFileInfo64 *info);
+  virtual int32_t Writev(PRFileDesc *f, const PRIOVec *iov, int32_t iov_size,
+                         PRIntervalTime to);
+  virtual PRStatus Connect(PRFileDesc *f, const PRNetAddr *addr,
+                           PRIntervalTime to);
+  virtual PRFileDesc *Accept(PRFileDesc *sd, PRNetAddr *addr,
+                             PRIntervalTime to);
+  virtual PRStatus Bind(PRFileDesc *f, const PRNetAddr *addr);
+  virtual PRStatus Listen(PRFileDesc *f, int32_t depth);
+  virtual PRStatus Shutdown(PRFileDesc *f, int32_t how);
+  virtual int32_t Recv(PRFileDesc *f, void *buf, int32_t buflen, int32_t flags,
+                       PRIntervalTime to);
+  virtual int32_t Send(PRFileDesc *f, const void *buf, int32_t amount,
+                       int32_t flags, PRIntervalTime to);
+  virtual int32_t Recvfrom(PRFileDesc *f, void *buf, int32_t amount,
+                           int32_t flags, PRNetAddr *addr, PRIntervalTime to);
+  virtual int32_t Sendto(PRFileDesc *f, const void *buf, int32_t amount,
+                         int32_t flags, const PRNetAddr *addr,
+                         PRIntervalTime to);
+  virtual int16_t Poll(PRFileDesc *f, int16_t in_flags, int16_t *out_flags);
+  virtual int32_t AcceptRead(PRFileDesc *sd, PRFileDesc **nd, PRNetAddr **raddr,
+                             void *buf, int32_t amount, PRIntervalTime t);
+  virtual int32_t TransmitFile(PRFileDesc *sd, PRFileDesc *f,
+                               const void *headers, int32_t hlen,
+                               PRTransmitFileFlags flags, PRIntervalTime t);
+  virtual PRStatus Getpeername(PRFileDesc *f, PRNetAddr *addr);
+  virtual PRStatus Getsockname(PRFileDesc *f, PRNetAddr *addr);
+  virtual PRStatus Getsockoption(PRFileDesc *f, PRSocketOptionData *opt);
+  virtual PRStatus Setsockoption(PRFileDesc *f, const PRSocketOptionData *opt);
+  virtual int32_t Sendfile(PRFileDesc *out, PRSendFileData *in,
+                           PRTransmitFileFlags flags, PRIntervalTime to);
+  virtual PRStatus ConnectContinue(PRFileDesc *f, int16_t flags);
+  virtual int32_t Reserved(PRFileDesc *f);
+};
+
+#endif  // dummy_io_h__
diff --git a/security/nss/cpputil/dummy_io_fwd.cc b/security/nss/cpputil/dummy_io_fwd.cc
new file mode 100644
index 0000000000..5e53d9e1bc
--- /dev/null
+++ b/security/nss/cpputil/dummy_io_fwd.cc
@@ -0,0 +1,162 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "prio.h"
+
+#include "dummy_io.h"
+
+static DummyIOLayerMethods *ToMethods(PRFileDesc *f) {
+  return reinterpret_cast<DummyIOLayerMethods *>(f->secret);
+}
+
+static PRStatus DummyClose(PRFileDesc *f) { return ToMethods(f)->Close(f); }
+
+static int32_t DummyRead(PRFileDesc *f, void *buf, int32_t length) {
+  return ToMethods(f)->Read(f, buf, length);
+}
+
+static int32_t DummyWrite(PRFileDesc *f, const void *buf, int32_t length) {
+  return ToMethods(f)->Write(f, buf, length);
+}
+
+static int32_t DummyAvailable(PRFileDesc *f) {
+  return ToMethods(f)->Available(f);
+}
+
+static int64_t DummyAvailable64(PRFileDesc *f) {
+  return ToMethods(f)->Available64(f);
+}
+
+static PRStatus DummySync(PRFileDesc *f) { return ToMethods(f)->Sync(f); }
+
+static int32_t DummySeek(PRFileDesc *f, int32_t offset, PRSeekWhence how) {
+  return ToMethods(f)->Seek(f, offset, how);
+}
+
+static int64_t DummySeek64(PRFileDesc *f, int64_t offset, PRSeekWhence how) {
+  return ToMethods(f)->Seek64(f, offset, how);
+}
+
+static PRStatus DummyFileInfo(PRFileDesc *f, PRFileInfo *info) {
+  return ToMethods(f)->FileInfo(f, info);
+}
+
+static PRStatus DummyFileInfo64(PRFileDesc *f, PRFileInfo64 *info) {
+  return ToMethods(f)->FileInfo64(f, info);
+}
+
+static int32_t DummyWritev(PRFileDesc *f, const PRIOVec *iov, int32_t iov_size,
+                           PRIntervalTime to) {
+  return ToMethods(f)->Writev(f, iov, iov_size, to);
+}
+
+static PRStatus DummyConnect(PRFileDesc *f, const PRNetAddr *addr,
+                             PRIntervalTime to) {
+  return ToMethods(f)->Connect(f, addr, to);
+}
+
+static PRFileDesc *DummyAccept(PRFileDesc *f, PRNetAddr *addr,
+                               PRIntervalTime to) {
+  return ToMethods(f)->Accept(f, addr, to);
+}
+
+static PRStatus DummyBind(PRFileDesc *f, const PRNetAddr *addr) {
+  return ToMethods(f)->Bind(f, addr);
+}
+
+static PRStatus DummyListen(PRFileDesc *f, int32_t depth) {
+  return ToMethods(f)->Listen(f, depth);
+}
+
+static PRStatus DummyShutdown(PRFileDesc *f, int32_t how) {
+  return ToMethods(f)->Shutdown(f, how);
+}
+
+static int32_t DummyRecv(PRFileDesc *f, void *buf, int32_t buflen,
+                         int32_t flags, PRIntervalTime to) {
+  return ToMethods(f)->Recv(f, buf, buflen, flags, to);
+}
+
+static int32_t DummySend(PRFileDesc *f, const void *buf, int32_t amount,
+                         int32_t flags, PRIntervalTime to) {
+  return ToMethods(f)->Send(f, buf, amount, flags, to);
+}
+
+static int32_t DummyRecvfrom(PRFileDesc *f, void *buf, int32_t amount,
+                             int32_t flags, PRNetAddr *addr,
+                             PRIntervalTime to) {
+  return ToMethods(f)->Recvfrom(f, buf, amount, flags, addr, to);
+}
+
+static int32_t DummySendto(PRFileDesc *f, const void *buf, int32_t amount,
+                           int32_t flags, const PRNetAddr *addr,
+                           PRIntervalTime to) {
+  return ToMethods(f)->Sendto(f, buf, amount, flags, addr, to);
+}
+
+static int16_t DummyPoll(PRFileDesc *f, int16_t in_flags, int16_t *out_flags) {
+  return ToMethods(f)->Poll(f, in_flags, out_flags);
+}
+
+static int32_t DummyAcceptRead(PRFileDesc *f, PRFileDesc **nd,
+                               PRNetAddr **raddr, void *buf, int32_t amount,
+                               PRIntervalTime t) {
+  return ToMethods(f)->AcceptRead(f, nd, raddr, buf, amount, t);
+}
+
+static int32_t DummyTransmitFile(PRFileDesc *sd, PRFileDesc *f,
+                                 const void *headers, int32_t hlen,
+                                 PRTransmitFileFlags flags, PRIntervalTime t) {
+  return ToMethods(f)->TransmitFile(sd, f, headers, hlen, flags, t);
+}
+
+static PRStatus DummyGetpeername(PRFileDesc *f, PRNetAddr *addr) {
+  return ToMethods(f)->Getpeername(f, addr);
+}
+
+static PRStatus DummyGetsockname(PRFileDesc *f, PRNetAddr *addr) {
+  return ToMethods(f)->Getsockname(f, addr);
+}
+
+static PRStatus DummyGetsockoption(PRFileDesc *f, PRSocketOptionData *opt) {
+  return ToMethods(f)->Getsockoption(f, opt);
+}
+
+static PRStatus DummySetsockoption(PRFileDesc *f,
+                                   const PRSocketOptionData *opt) {
+  return ToMethods(f)->Setsockoption(f, opt);
+}
+
+static int32_t DummySendfile(PRFileDesc *f, PRSendFileData *in,
+                             PRTransmitFileFlags flags, PRIntervalTime to) {
+  return ToMethods(f)->Sendfile(f, in, flags, to);
+}
+
+static PRStatus DummyConnectContinue(PRFileDesc *f, int16_t flags) {
+  return ToMethods(f)->ConnectContinue(f, flags);
+}
+
+static int32_t DummyReserved(PRFileDesc *f) {
+  return ToMethods(f)->Reserved(f);
+}
+
+extern const struct PRIOMethods DummyMethodsForward = {
+    PR_DESC_LAYERED,    DummyClose,
+    DummyRead,          DummyWrite,
+    DummyAvailable,     DummyAvailable64,
+    DummySync,          DummySeek,
+    DummySeek64,        DummyFileInfo,
+    DummyFileInfo64,    DummyWritev,
+    DummyConnect,       DummyAccept,
+    DummyBind,          DummyListen,
+    DummyShutdown,      DummyRecv,
+    DummySend,          DummyRecvfrom,
+    DummySendto,        DummyPoll,
+    DummyAcceptRead,    DummyTransmitFile,
+    DummyGetsockname,   DummyGetpeername,
+    DummyReserved,      DummyReserved,
+    DummyGetsockoption, DummySetsockoption,
+    DummySendfile,      DummyConnectContinue,
+    DummyReserved,      DummyReserved,
+    DummyReserved,      DummyReserved};
diff --git a/security/nss/cpputil/freebl_scoped_ptrs.h b/security/nss/cpputil/freebl_scoped_ptrs.h
new file mode 100644
index 0000000000..2f21ca9035
--- /dev/null
+++ b/security/nss/cpputil/freebl_scoped_ptrs.h
@@ -0,0 +1,33 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef freebl_scoped_ptrs_h__
+#define freebl_scoped_ptrs_h__
+
+#include <memory>
+#include "blapi.h"
+
+struct ScopedDelete {
+  void operator()(CMACContext* ctx) { CMAC_Destroy(ctx, PR_TRUE); }
+};
+
+template <class T>
+struct ScopedMaybeDelete {
+  void operator()(T* ptr) {
+    if (ptr) {
+      ScopedDelete del;
+      del(ptr);
+    }
+  }
+};
+
+#define SCOPED(x) typedef std::unique_ptr<x, ScopedMaybeDelete<x> > Scoped##x
+
+SCOPED(CMACContext);
+
+#undef SCOPED
+
+#endif  // freebl_scoped_ptrs_h__
diff --git a/security/nss/cpputil/manifest.mn b/security/nss/cpputil/manifest.mn
new file mode 100644
index 0000000000..9bd68e0d88
--- /dev/null
+++ b/security/nss/cpputil/manifest.mn
@@ -0,0 +1,23 @@
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+CORE_DEPTH = ..
+DEPTH      = ..
+
+MODULE = nss
+
+LIBRARY_NAME = cpputil
+SHARED_LIBRARY = $(NULL)
+
+ifeq ($(NSS_BUILD_UTIL_ONLY),1)
+CPPSRCS = \
+      $(NULL)
+else
+CPPSRCS = \
+      databuffer.cc \
+      dummy_io.cc \
+      dummy_io_fwd.cc \
+      tls_parser.cc \
+      $(NULL)
+endif
diff --git a/security/nss/cpputil/nss_scoped_ptrs.h b/security/nss/cpputil/nss_scoped_ptrs.h
new file mode 100644
index 0000000000..2c57986b14
--- /dev/null
+++ b/security/nss/cpputil/nss_scoped_ptrs.h
@@ -0,0 +1,104 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef nss_scoped_ptrs_h__
+#define nss_scoped_ptrs_h__
+
+#include <memory>
+#include "cert.h"
+#include "keyhi.h"
+#include "p12.h"
+#include "pk11hpke.h"
+#include "pk11pqg.h"
+#include "pk11pub.h"
+#include "pkcs11uri.h"
+#include "secmod.h"
+
+struct ScopedDelete {
+  void operator()(CERTCertificate* cert) { CERT_DestroyCertificate(cert); }
+  void operator()(CERTCertificateList* list) {
+    CERT_DestroyCertificateList(list);
+  }
+  void operator()(CERTDistNames* names) { CERT_FreeDistNames(names); }
+  void operator()(CERTName* name) { CERT_DestroyName(name); }
+  void operator()(CERTCertList* list) { CERT_DestroyCertList(list); }
+  void operator()(CERTSubjectPublicKeyInfo* spki) {
+    SECKEY_DestroySubjectPublicKeyInfo(spki);
+  }
+  void operator()(HpkeContext* context) {
+    PK11_HPKE_DestroyContext(context, true);
+  }
+  void operator()(PK11Context* context) { PK11_DestroyContext(context, true); }
+  void operator()(PK11GenericObject* obj) { PK11_DestroyGenericObject(obj); }
+  void operator()(PK11SlotInfo* slot) { PK11_FreeSlot(slot); }
+  void operator()(PK11SlotList* slots) { PK11_FreeSlotList(slots); }
+  void operator()(PK11SymKey* key) { PK11_FreeSymKey(key); }
+  void operator()(PK11URI* uri) { PK11URI_DestroyURI(uri); }
+  void operator()(PLArenaPool* arena) { PORT_FreeArena(arena, PR_FALSE); }
+  void operator()(PQGParams* pqg) { PK11_PQG_DestroyParams(pqg); }
+  void operator()(PRFileDesc* fd) { PR_Close(fd); }
+  void operator()(SECAlgorithmID* id) { SECOID_DestroyAlgorithmID(id, true); }
+  void operator()(SECKEYEncryptedPrivateKeyInfo* e) {
+    SECKEY_DestroyEncryptedPrivateKeyInfo(e, true);
+  }
+  void operator()(SECItem* item) { SECITEM_FreeItem(item, true); }
+  void operator()(SECKEYPublicKey* key) { SECKEY_DestroyPublicKey(key); }
+  void operator()(SECKEYPrivateKey* key) { SECKEY_DestroyPrivateKey(key); }
+  void operator()(SECKEYPrivateKeyList* list) {
+    SECKEY_DestroyPrivateKeyList(list);
+  }
+  void operator()(SECMODModule* module) { SECMOD_DestroyModule(module); }
+  void operator()(SEC_PKCS12DecoderContext* dcx) {
+    SEC_PKCS12DecoderFinish(dcx);
+  }
+};
+
+template <class T>
+struct ScopedMaybeDelete {
+  void operator()(T* ptr) {
+    if (ptr) {
+      ScopedDelete del;
+      del(ptr);
+    }
+  }
+};
+
+#define SCOPED(x) typedef std::unique_ptr<x, ScopedMaybeDelete<x> > Scoped##x
+
+SCOPED(CERTCertList);
+SCOPED(CERTCertificate);
+SCOPED(CERTCertificateList);
+SCOPED(CERTDistNames);
+SCOPED(CERTName);
+SCOPED(CERTSubjectPublicKeyInfo);
+SCOPED(HpkeContext);
+SCOPED(PK11Context);
+SCOPED(PK11GenericObject);
+SCOPED(PK11SlotInfo);
+SCOPED(PK11SlotList);
+SCOPED(PK11SymKey);
+SCOPED(PK11URI);
+SCOPED(PLArenaPool);
+SCOPED(PQGParams);
+SCOPED(PRFileDesc);
+SCOPED(SECAlgorithmID);
+SCOPED(SECItem);
+SCOPED(SECKEYEncryptedPrivateKeyInfo);
+SCOPED(SECKEYPrivateKey);
+SCOPED(SECKEYPrivateKeyList);
+SCOPED(SECKEYPublicKey);
+SCOPED(SECMODModule);
+SCOPED(SEC_PKCS12DecoderContext);
+
+#undef SCOPED
+
+struct StackSECItem : public SECItem {
+  StackSECItem() : SECItem({siBuffer, nullptr, 0}) {}
+  ~StackSECItem() { Reset(); }
+  void Reset() { SECITEM_FreeItem(this, PR_FALSE); }
+};
+
+#endif  // nss_scoped_ptrs_h__
diff --git a/security/nss/cpputil/scoped_ptrs_smime.h b/security/nss/cpputil/scoped_ptrs_smime.h
new file mode 100644
index 0000000000..fc235f7ebe
--- /dev/null
+++ b/security/nss/cpputil/scoped_ptrs_smime.h
@@ -0,0 +1,34 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef scoped_ptrs_smime_h__
+#define scoped_ptrs_smime_h__
+
+#include <memory>
+#include "smime.h"
+
+struct ScopedDeleteSmime {
+  void operator()(NSSCMSMessage* id) { NSS_CMSMessage_Destroy(id); }
+};
+
+template <class T>
+struct ScopedMaybeDeleteSmime {
+  void operator()(T* ptr) {
+    if (ptr) {
+      ScopedDeleteSmime del;
+      del(ptr);
+    }
+  }
+};
+
+#define SCOPED(x) \
+  typedef std::unique_ptr<x, ScopedMaybeDeleteSmime<x> > Scoped##x
+
+SCOPED(NSSCMSMessage);
+
+#undef SCOPED
+
+#endif  // scoped_ptrs_smime_h__
diff --git a/security/nss/cpputil/scoped_ptrs_ssl.h b/security/nss/cpputil/scoped_ptrs_ssl.h
new file mode 100644
index 0000000000..682ebab829
--- /dev/null
+++ b/security/nss/cpputil/scoped_ptrs_ssl.h
@@ -0,0 +1,43 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef scoped_ptrs_ssl_h__
+#define scoped_ptrs_ssl_h__
+
+#include <memory>
+#include "sslexp.h"
+
+struct ScopedDeleteSSL {
+  void operator()(SSLAeadContext* ctx) { SSL_DestroyAead(ctx); }
+  void operator()(SSLMaskingContext* ctx) { SSL_DestroyMaskingContext(ctx); }
+  void operator()(SSLAntiReplayContext* ctx) {
+    SSL_ReleaseAntiReplayContext(ctx);
+  }
+  void operator()(SSLResumptionTokenInfo* token) {
+    SSL_DestroyResumptionTokenInfo(token);
+  }
+};
+
+template <class T>
+struct ScopedMaybeDeleteSSL {
+  void operator()(T* ptr) {
+    if (ptr) {
+      ScopedDeleteSSL del;
+      del(ptr);
+    }
+  }
+};
+
+#define SCOPED(x) typedef std::unique_ptr<x, ScopedMaybeDeleteSSL<x> > Scoped##x
+
+SCOPED(SSLAeadContext);
+SCOPED(SSLAntiReplayContext);
+SCOPED(SSLMaskingContext);
+SCOPED(SSLResumptionTokenInfo);
+
+#undef SCOPED
+
+#endif  // scoped_ptrs_ssl_h__
diff --git a/security/nss/cpputil/scoped_ptrs_util.h b/security/nss/cpputil/scoped_ptrs_util.h
new file mode 100644
index 0000000000..d0a42ee0b4
--- /dev/null
+++ b/security/nss/cpputil/scoped_ptrs_util.h
@@ -0,0 +1,45 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef scoped_ptrs_util_h__
+#define scoped_ptrs_util_h__
+
+#include <memory>
+#include "pkcs11uri.h"
+#include "secoid.h"
+
+struct ScopedDelete {
+  void operator()(SECAlgorithmID* id) { SECOID_DestroyAlgorithmID(id, true); }
+  void operator()(SECItem* item) { SECITEM_FreeItem(item, true); }
+  void operator()(PK11URI* uri) { PK11URI_DestroyURI(uri); }
+  void operator()(PLArenaPool* arena) { PORT_FreeArena(arena, PR_FALSE); }
+};
+
+template <class T>
+struct ScopedMaybeDelete {
+  void operator()(T* ptr) {
+    if (ptr) {
+      ScopedDelete del;
+      del(ptr);
+    }
+  }
+};
+
+#define SCOPED(x) typedef std::unique_ptr<x, ScopedMaybeDelete<x> > Scoped##x
+
+SCOPED(SECAlgorithmID);
+SCOPED(SECItem);
+SCOPED(PK11URI);
+SCOPED(PLArenaPool);
+
+#undef SCOPED
+
+struct StackSECItem : public SECItem {
+  StackSECItem() : SECItem({siBuffer, nullptr, 0}) {}
+  ~StackSECItem() { SECITEM_FreeItem(this, PR_FALSE); }
+};
+
+#endif  // scoped_ptrs_util_h__
diff --git a/security/nss/cpputil/tls_parser.cc b/security/nss/cpputil/tls_parser.cc
new file mode 100644
index 0000000000..efedd7a658
--- /dev/null
+++ b/security/nss/cpputil/tls_parser.cc
@@ -0,0 +1,88 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "tls_parser.h"
+
+namespace nss_test {
+
+bool TlsParser::Read(uint8_t* val) {
+  if (remaining() < 1) {
+    return false;
+  }
+  *val = *ptr();
+  consume(1);
+  return true;
+}
+
+bool TlsParser::Read(uint32_t* val, size_t size) {
+  if (size > sizeof(uint32_t)) {
+    return false;
+  }
+
+  uint32_t v = 0;
+  for (size_t i = 0; i < size; ++i) {
+    uint8_t tmp;
+    if (!Read(&tmp)) {
+      return false;
+    }
+
+    v = (v << 8) | tmp;
+  }
+
+  *val = v;
+  return true;
+}
+
+bool TlsParser::Read(DataBuffer* val, size_t len) {
+  if (remaining() < len) {
+    return false;
+  }
+
+  val->Assign(ptr(), len);
+  consume(len);
+  return true;
+}
+
+bool TlsParser::ReadFromMark(DataBuffer* val, size_t len, size_t mark) {
+  auto saved = offset_;
+  offset_ = mark;
+
+  if (remaining() < len) {
+    offset_ = saved;
+    return false;
+  }
+
+  val->Assign(ptr(), len);
+
+  offset_ = saved;
+  return true;
+}
+
+bool TlsParser::ReadVariable(DataBuffer* val, size_t len_size) {
+  uint32_t len;
+  if (!Read(&len, len_size)) {
+    return false;
+  }
+  return Read(val, len);
+}
+
+bool TlsParser::Skip(size_t len) {
+  if (len > remaining()) {
+    return false;
+  }
+  consume(len);
+  return true;
+}
+
+bool TlsParser::SkipVariable(size_t len_size) {
+  uint32_t len;
+  if (!Read(&len, len_size)) {
+    return false;
+  }
+  return Skip(len);
+}
+
+}  // namespace nss_test
diff --git a/security/nss/cpputil/tls_parser.h b/security/nss/cpputil/tls_parser.h
new file mode 100644
index 0000000000..41d760ed00
--- /dev/null
+++ b/security/nss/cpputil/tls_parser.h
@@ -0,0 +1,177 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef tls_parser_h_
+#define tls_parser_h_
+
+#include <cstdint>
+#include <cstring>
+#include <memory>
+#if defined(WIN32) || defined(WIN64)
+#include <winsock2.h>
+#else
+#include <arpa/inet.h>
+#endif
+#include "databuffer.h"
+#include "sslt.h"
+
+namespace nss_test {
+
+const uint8_t kTlsHandshakeClientHello = 1;
+const uint8_t kTlsHandshakeServerHello = 2;
+const uint8_t kTlsHandshakeNewSessionTicket = 4;
+const uint8_t kTlsHandshakeHelloRetryRequest = 6;
+const uint8_t kTlsHandshakeEncryptedExtensions = 8;
+const uint8_t kTlsHandshakeCertificate = 11;
+const uint8_t kTlsHandshakeServerKeyExchange = 12;
+const uint8_t kTlsHandshakeCertificateRequest = 13;
+const uint8_t kTlsHandshakeCertificateVerify = 15;
+const uint8_t kTlsHandshakeClientKeyExchange = 16;
+const uint8_t kTlsHandshakeFinished = 20;
+const uint8_t kTlsHandshakeKeyUpdate = 24;
+
+const uint8_t kTlsAlertWarning = 1;
+const uint8_t kTlsAlertFatal = 2;
+
+const uint8_t kTlsAlertCloseNotify = 0;
+const uint8_t kTlsAlertUnexpectedMessage = 10;
+const uint8_t kTlsAlertBadRecordMac = 20;
+const uint8_t kTlsAlertRecordOverflow = 22;
+const uint8_t kTlsAlertHandshakeFailure = 40;
+const uint8_t kTlsAlertBadCertificate = 42;
+const uint8_t kTlsAlertCertificateRevoked = 44;
+const uint8_t kTlsAlertCertificateExpired = 45;
+const uint8_t kTlsAlertIllegalParameter = 47;
+const uint8_t kTlsAlertDecodeError = 50;
+const uint8_t kTlsAlertDecryptError = 51;
+const uint8_t kTlsAlertProtocolVersion = 70;
+const uint8_t kTlsAlertInsufficientSecurity = 71;
+const uint8_t kTlsAlertInternalError = 80;
+const uint8_t kTlsAlertInappropriateFallback = 86;
+const uint8_t kTlsAlertMissingExtension = 109;
+const uint8_t kTlsAlertUnsupportedExtension = 110;
+const uint8_t kTlsAlertUnrecognizedName = 112;
+const uint8_t kTlsAlertCertificateRequired = 116;
+const uint8_t kTlsAlertNoApplicationProtocol = 120;
+const uint8_t kTlsAlertEchRequired = 121;
+
+const uint8_t kTlsFakeChangeCipherSpec[] = {
+    ssl_ct_change_cipher_spec,  // Type
+    0xfe,
+    0xff,  // Version
+    0x00,
+    0x00,
+    0x00,
+    0x00,
+    0x00,
+    0x00,
+    0x00,
+    0x10,  // Fictitious sequence #
+    0x00,
+    0x01,  // Length
+    0x01   // Value
+};
+
+const uint8_t kCtDtlsCiphertext = 0x20;
+const uint8_t kCtDtlsCiphertextMask = 0xE0;
+const uint8_t kCtDtlsCiphertext16bSeqno = 0x08;
+const uint8_t kCtDtlsCiphertextLengthPresent = 0x04;
+
+static const uint8_t kTls13PskKe = 0;
+static const uint8_t kTls13PskDhKe = 1;
+static const uint8_t kTls13PskAuth = 0;
+static const uint8_t kTls13PskSignAuth = 1;
+
+inline std::ostream& operator<<(std::ostream& os, SSLProtocolVariant v) {
+  return os << ((v == ssl_variant_stream) ? "TLS" : "DTLS");
+}
+
+inline std::ostream& operator<<(std::ostream& os, SSLContentType v) {
+  switch (v) {
+    case ssl_ct_change_cipher_spec:
+      return os << "CCS";
+    case ssl_ct_alert:
+      return os << "alert";
+    case ssl_ct_handshake:
+      return os << "handshake";
+    case ssl_ct_application_data:
+      return os << "application data";
+    case ssl_ct_ack:
+      return os << "ack";
+  }
+  return os << "UNKNOWN content type " << static_cast<int>(v);
+}
+
+inline std::ostream& operator<<(std::ostream& os, SSLSecretDirection v) {
+  switch (v) {
+    case ssl_secret_read:
+      return os << "read";
+    case ssl_secret_write:
+      return os << "write";
+  }
+  return os << "UNKNOWN secret direction " << static_cast<int>(v);
+}
+
+inline bool IsDtls(uint16_t version) { return (version & 0x8000) == 0x8000; }
+
+inline uint16_t NormalizeTlsVersion(uint16_t version) {
+  if (version == 0xfeff) {
+    return 0x0302;  // special: DTLS 1.0 == TLS 1.1
+  }
+  if (IsDtls(version)) {
+    return (version ^ 0xffff) + 0x0201;
+  }
+  return version;
+}
+
+inline uint16_t TlsVersionToDtlsVersion(uint16_t version) {
+  if (version == 0x0302) {
+    return 0xfeff;
+  }
+  if (version == 0x0304) {
+    return version;
+  }
+  return 0xffff - version + 0x0201;
+}
+
+inline size_t WriteVariable(DataBuffer* target, size_t index,
+                            const DataBuffer& buf, size_t len_size) {
+  index = target->Write(index, static_cast<uint32_t>(buf.len()), len_size);
+  return target->Write(index, buf.data(), buf.len());
+}
+
+class TlsParser {
+ public:
+  TlsParser(const uint8_t* data, size_t len) : buffer_(data, len), offset_(0) {}
+  explicit TlsParser(const DataBuffer& buf) : buffer_(buf), offset_(0) {}
+
+  bool Read(uint8_t* val);
+  // Read an integral type of specified width.
+  bool Read(uint32_t* val, size_t size);
+  // Reads len bytes into dest buffer, overwriting it.
+  bool Read(DataBuffer* dest, size_t len);
+  bool ReadFromMark(DataBuffer* val, size_t len, size_t mark);
+  // Reads bytes into dest buffer, overwriting it.  The number of bytes is
+  // determined by reading from len_size bytes from the stream first.
+  bool ReadVariable(DataBuffer* dest, size_t len_size);
+
+  bool Skip(size_t len);
+  bool SkipVariable(size_t len_size);
+
+  size_t consumed() const { return offset_; }
+  size_t remaining() const { return buffer_.len() - offset_; }
+
+ private:
+  void consume(size_t len) { offset_ += len; }
+  const uint8_t* ptr() const { return buffer_.data() + offset_; }
+
+  DataBuffer buffer_;
+  size_t offset_;
+};
+
+}  // namespace nss_test
+
+#endif