Npcap

The Npcap packet capturing/sending library uses several 3rd party open source software libraries. All are open source with BSD-style licenses that allow for unlimited use and royalty-free redistribution within other software (including commercial/proprietary software). Some include a warranty disclaimer (relating to the original authors) and require a small amount of acknowledgment text be added to the documentation of any software which includes them (including indirectly through Npcap). An example of such text is in the copyright statements section at the end of this document. Since Insecure.Com LLC is not the author of this 3rd party code, we can not waive or modify it's software copyright or license. Npcap users and redistributors must comply with the relevant Npcap license (either the free/demo license or a commercial Npcap OEM license they may have purchased) as well as the fairly minimal requirements of this 3rd party open source software.

Please note that all Npcap support, warranties and indemnification that we (Insecure.Com LLC) offer to commercial customers include these 3rd party libraries along with all other Npcap code. The warranty disclaimers in their license text just mean that the original library authors and maintainers aren't responsible for that support.

This document covers Npcap version 1.31. Licensees or potential licensees who want this information for a different Nmap release should contact sales@nmap.com.

Libpcap Portable Packet Capturing Library Description: Libpcap is a popular reference implementation of the pcap packet capturing API. It is produced by The Tcpdump Group and supports Linux and Mac OS X systems (among others). Npcap implements this API for Microsoft Windows by combining the high-level open source libpcap API code with our own custom Windows driver that implements the low-level network operations. Our wpcap.dll library file is mostly Libpcap code. We occasionally make our own fixes and changes to the libpcap code, but we have a great relationship with The Tcpdump Group and try to submit all of our changes to them for incorporation in future libpcap releases. Software URL: http://www.tcpdump.org/ Version used: 1.10

License Summary: Modified BSD license (3-clause) – allows free redistribution as long as you include a short attribution statement and warranty disclaimer somewhere in your documentation.

License Text: Libpcap is Copyright (c) by The TCPdump group and its contributors. This license text was taken from https://github.com/the-tcpdump-group/libpcap/blob/master/LICENSE on August 25, 2020: License: BSD 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 names of the authors may not be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED ``AS IS AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.

Winpcap Windows Packet Capturing Library

Description: Winpcap is an earlier (now abandoned) open source implementation of the pcap API for Windows. The last Winpcap release was made in March 2013. We created Npcap by starting with that abandoned code and updating it to support modern Windows NDIS API's and fixing well-known bugs and security issues. While Npcap has diverged substantially over the years, it still contains a substantial amount of original Winpcap code, so the Winpcap license must be followed. is used by Nmap on Windows for raw packet reading during host discovery, port scanning, and OS detection. It is a derivative of LibPcap, so that license (see Libpcap section) must be followed as well. It is only needed and used on Windows.

Software URL: https://www.winpcap.org/ Version used: 4.1.3

License Summary: Modified BSD license (3-clause) – allows free redistribution as long as you include attribution statement and warranty disclaimer somewhere in your documentation. The fourth clause, which relates to attribution in advertising materials has been officially removed and revoked by the University of California, Berkeley: https://ipira.berkeley.edu/sites/default/files/shared/docs/Advertising_clause_removed_from_BSD_license.pdf License Text:

This was taken from https://www.winpcap.org/misc/copyright.htm on March 11, 2016 and we made the following updates:

• Removed the "advertising clause" from University of California, Berkeley copyright statement because they have officiall removed and revoked that as documented here: https://ipira.berkeley.edu/sites/default/files/shared/docs/Advertising_clause_removed_from_BSD_licens e.pdf

• Removed copyright notice from Kungliga Tekniska Högskolan because that code is no longer in Npcap.

• Removed copyright notice from Yen Yen Lim and north Dakota State University because that code is no longer in Npcap.

• Removed copyright notice from Digital Equipment Corporation because that code is no longer in Npcap.

• Removed copyright notice from WIDE Project because that code is no longer in Npcap.

• Removed copyright notice from Juniper Networks because that code is no longer in Npcap.

• Removed copyright notice from Daniel Hartmeier since that code is no longer in Npcap.

• Removed copyright notice from Carnegie Mellon since that code is no longer in Npcap.

• Removed the 1983 copyright notice from UC Berkeley since that code is no longer in Npcap. The notice from their 1990's contributions is still there.

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. Neither the name of the Politecnico di Torino, CACE Technologies nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 COPYRIGHT OWNER OR CONTRIBUTORS 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.

This product includes software developed by the University of California, Lawrence Berkeley Laboratory and its contributors.

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. Neither the name of the University nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.

The ieee80211_radiotap.h Header File Description: This is just a short header file defining data structures for the IEEE 802.11 radio capture header Software URL: Version used: There is not a specific version number, but it says "Copyright (c) 2003, 2004 David Young"

License Summary: Modified BSD license (3-clause) – allows free redistribution as long as you include a short attribution statement and warranty disclaimer somewhere in your documentation.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

http://web.mit.edu/~mkgray/afs/bar/afs/sipb.mit.edu/project/freebsd/head/

contrib/wpa/src/utils/radiotap.h

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 David Young may not be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY DAVID YOUNG ``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 DAVID YOUNG 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.

Copyright Statements and Acknowledgement/Disclaimer Text

Here is the complete copyright/acknowledgement/disclaimer text as required by the various open source licenses (see above). We're including this both to fulfill the license agreements ourselves, and as a template that companies distributing Npcap (which is only allowed with the redistribution license described at https://nmap.org/npcap/oem/redist.html) can use in their own documentation as well.

Npcap is Copyright (c) 2013-2021 Insecure.Com LLC. All rights reserved. See https://npcap.org for details. Portions of Npcap are Copyright (c) 1999 - 2005 NetGroup, Politecnico di Torino (Italy). Portions of Npcap are Copyright (c) 2005 - 2010 CACE Technologies, Davis (California). All rights reserved.