Add rtppacketuil.h/cc

talk/media/base/turnutils_unittest.cc

+/*
+ * libjingle
+ * Copyright 2016 Google Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  1. Redistributions of source code must retain the above copyright notice,
+ *     this list of conditions and the following disclaimer.
+ *  2. Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *  3. The name of the author may not be used to endorse or promote products
+ *     derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "talk/media/base/turnutils.h"
+
+#include <stddef.h>
+
+#include "webrtc/base/gunit.h"
+
+namespace cricket {
+
+// Invalid TURN send indication messages. Messages are proper STUN
+// messages with incorrect values in attributes.
+TEST(TurnUtilsTest, InvalidTurnSendIndicationMessages) {
+  size_t content_pos = SIZE_MAX;
+  size_t content_size = SIZE_MAX;
+
+  // Stun Indication message with Zero length
+  uint8_t kTurnSendIndicationMsgWithNoAttributes[] = {
+      0x00, 0x16, 0x00, 0x00,  // Zero length
+      0x21, 0x12, 0xA4, 0x42,  // magic cookie
+      '0',  '1',  '2',  '3',   // transaction id
+      '4',  '5',  '6',  '7',  '8', '9', 'a', 'b',
+  };
+  EXPECT_FALSE(UnwrapTurnPacket(kTurnSendIndicationMsgWithNoAttributes,
+                                sizeof(kTurnSendIndicationMsgWithNoAttributes),
+                                &content_pos, &content_size));
+  EXPECT_EQ(SIZE_MAX, content_pos);
+  EXPECT_EQ(SIZE_MAX, content_size);
+
+  // Stun Send Indication message with invalid length in stun header.
+  const uint8_t kTurnSendIndicationMsgWithInvalidLength[] = {
+      0x00, 0x16, 0xFF, 0x00,  // length of 0xFF00
+      0x21, 0x12, 0xA4, 0x42,  // magic cookie
+      '0',  '1',  '2',  '3',   // transaction id
+      '4',  '5',  '6',  '7',  '8', '9', 'a', 'b',
+  };
+  EXPECT_FALSE(UnwrapTurnPacket(kTurnSendIndicationMsgWithInvalidLength,
+                                sizeof(kTurnSendIndicationMsgWithInvalidLength),
+                                &content_pos, &content_size));
+  EXPECT_EQ(SIZE_MAX, content_pos);
+  EXPECT_EQ(SIZE_MAX, content_size);
+
+  // Stun Send Indication message with no DATA attribute in message.
+  const uint8_t kTurnSendIndicatinMsgWithNoDataAttribute[] = {
+      0x00, 0x16, 0x00, 0x08,  // length of
+      0x21, 0x12, 0xA4, 0x42,  // magic cookie
+      '0',  '1',  '2',  '3',   // transaction id
+      '4',  '5',  '6',  '7',  '8',  '9', 'a',  'b',
+      0x00, 0x20, 0x00, 0x04,  // Mapped address.
+      0x00, 0x00, 0x00, 0x00,
+  };
+  EXPECT_FALSE(
+      UnwrapTurnPacket(kTurnSendIndicatinMsgWithNoDataAttribute,
+                       sizeof(kTurnSendIndicatinMsgWithNoDataAttribute),
+                       &content_pos, &content_size));
+  EXPECT_EQ(SIZE_MAX, content_pos);
+  EXPECT_EQ(SIZE_MAX, content_size);
+}
+
+// Valid TURN Send Indication messages.
+TEST(TurnUtilsTest, ValidTurnSendIndicationMessage) {
+  size_t content_pos = SIZE_MAX;
+  size_t content_size = SIZE_MAX;
+  // A valid STUN indication message with a valid RTP header in data attribute
+  // payload field and no extension bit set.
+  const uint8_t kTurnSendIndicationMsgWithoutRtpExtension[] = {
+      0x00, 0x16, 0x00, 0x18,  // length of
+      0x21, 0x12, 0xA4, 0x42,  // magic cookie
+      '0',  '1',  '2',  '3',   // transaction id
+      '4',  '5',  '6',  '7',  '8',  '9',  'a',  'b',
+      0x00, 0x20, 0x00, 0x04,  // Mapped address.
+      0x00, 0x00, 0x00, 0x00,
+      0x00, 0x13, 0x00, 0x0C,  // Data attribute.
+      0x80, 0x00, 0x00, 0x00,  // RTP packet.
+      0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  };
+  EXPECT_TRUE(UnwrapTurnPacket(
+      kTurnSendIndicationMsgWithoutRtpExtension,
+      sizeof(kTurnSendIndicationMsgWithoutRtpExtension), &content_pos,
+      &content_size));
+  EXPECT_EQ(12U, content_size);
+  EXPECT_EQ(32U, content_pos);
+}
+
+// Verify that parsing of valid TURN Channel Messages.
+TEST(TurnUtilsTest, ValidTurnChannelMessages) {
+  const uint8_t kTurnChannelMsgWithRtpPacket[] = {
+      0x40, 0x00, 0x00, 0x0C,
+      0x80, 0x00, 0x00, 0x00,  // RTP packet.
+      0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  };
+
+  size_t content_pos = 0, content_size = 0;
+  EXPECT_TRUE(UnwrapTurnPacket(
+      kTurnChannelMsgWithRtpPacket,
+      sizeof(kTurnChannelMsgWithRtpPacket), &content_pos, &content_size));
+  EXPECT_EQ(12U, content_size);
+  EXPECT_EQ(4U, content_pos);
+}
+
+TEST(TurnUtilsTest, ChannelMessageZeroLength) {
+  const uint8_t kTurnChannelMsgWithZeroLength[] = {0x40, 0x00, 0x00, 0x00};
+  size_t content_pos = SIZE_MAX;
+  size_t content_size = SIZE_MAX;
+  EXPECT_TRUE(UnwrapTurnPacket(kTurnChannelMsgWithZeroLength,
+                               sizeof(kTurnChannelMsgWithZeroLength),
+                               &content_pos, &content_size));
+  EXPECT_EQ(4, content_pos);
+  EXPECT_EQ(0, content_size);
+}
+
+}  // namespace cricket