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113 lines
5.2 KiB
C++
113 lines
5.2 KiB
C++
/***************************************************************************
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* ICMPv6RRBody.h -- The ICMPv6RRBody Class represents an ICMP version 6 *
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* Router Renumbering message body. It contains methods to set any header *
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* field. In general, these methods do error checkings and byte order *
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* conversions. *
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* *
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***********************IMPORTANT NMAP LICENSE TERMS************************
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*
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* The Nmap Security Scanner is (C) 1996-2025 Nmap Software LLC ("The Nmap
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* Project"). Nmap is also a registered trademark of the Nmap Project.
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*
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* This program is distributed under the terms of the Nmap Public Source
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* License (NPSL). The exact license text applying to a particular Nmap
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* release or source code control revision is contained in the LICENSE
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* file distributed with that version of Nmap or source code control
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* revision. More Nmap copyright/legal information is available from
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* https://nmap.org/book/man-legal.html, and further information on the
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* NPSL license itself can be found at https://nmap.org/npsl/ . This
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* header summarizes some key points from the Nmap license, but is no
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* substitute for the actual license text.
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*
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* Nmap is generally free for end users to download and use themselves,
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* including commercial use. It is available from https://nmap.org.
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*
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* The Nmap license generally prohibits companies from using and
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* redistributing Nmap in commercial products, but we sell a special Nmap
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* OEM Edition with a more permissive license and special features for
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* this purpose. See https://nmap.org/oem/
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*
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* If you have received a written Nmap license agreement or contract
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* stating terms other than these (such as an Nmap OEM license), you may
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* choose to use and redistribute Nmap under those terms instead.
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*
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* The official Nmap Windows builds include the Npcap software
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* (https://npcap.com) for packet capture and transmission. It is under
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* separate license terms which forbid redistribution without special
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* permission. So the official Nmap Windows builds may not be redistributed
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* without special permission (such as an Nmap OEM license).
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*
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* Source is provided to this software because we believe users have a
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* right to know exactly what a program is going to do before they run it.
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* This also allows you to audit the software for security holes.
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*
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* Source code also allows you to port Nmap to new platforms, fix bugs, and
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* add new features. You are highly encouraged to submit your changes as a
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* Github PR or by email to the dev@nmap.org mailing list for possible
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* incorporation into the main distribution. Unless you specify otherwise, it
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* is understood that you are offering us very broad rights to use your
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* submissions as described in the Nmap Public Source License Contributor
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* Agreement. This is important because we fund the project by selling licenses
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* with various terms, and also because the inability to relicense code has
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* caused devastating problems for other Free Software projects (such as KDE
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* and NASM).
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*
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* The free version of Nmap is distributed in the hope that it will be
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* useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. Warranties,
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* indemnification and commercial support are all available through the
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* Npcap OEM program--see https://nmap.org/oem/
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*
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***************************************************************************/
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/* This code was originally part of the Nping tool. */
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#include "ICMPv6RRBody.h"
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ICMPv6RRBody::ICMPv6RRBody() {
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this->reset();
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} /* End of ICMPv6RRBody constructor */
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ICMPv6RRBody::~ICMPv6RRBody() {
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} /* End of ICMPv6RRBody destructor */
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/** Sets every class attribute to zero */
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void ICMPv6RRBody::reset(){
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memset(&this->h, 0, sizeof(nping_icmpv6_rr_body_t));
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h_mp = (rr_match_prefix_t *)this->h.data;
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h_up = (rr_use_prefix_t *)this->h.data;
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h_r = (rr_result_msg_t *)this->h.data;
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} /* End of reset() */
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/** @warning This method is essential for the superclass getBinaryBuffer()
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* method to work. Do NOT change a thing unless you know what you're doing */
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u8 *ICMPv6RRBody::getBufferPointer(){
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return (u8*)(&this->h);
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} /* End of getBufferPointer() */
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/** Stores supplied packet in the internal buffer so the information
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* can be accessed using the standard get & set methods.
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* @warning The ICMPv6RRBody class is able to hold a maximum of
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* sizeof(nping_icmpv6_rr_body_t) bytes. If the supplied buffer is longer than
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* that, only the first sizeof(nping_icmpv6_rr_body_t) bytes will be stored in
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* the internal buffer.
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* @warning Supplied len MUST be at least ICMPv6_RR_MIN_LENGTH bytes
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* @return OP_SUCCESS on success and OP_FAILURE in case of error */
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int ICMPv6RRBody::storeRecvData(const u8 *buf, size_t len){
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if(buf==NULL || len<ICMPv6_RR_MIN_LENGTH){
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return OP_FAILURE;
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}else{
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int stored_len = MIN( sizeof(nping_icmpv6_rr_body_t), len);
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this->reset(); /* Re-init the object, just in case the caller had used it already */
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this->length=stored_len;
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memcpy(&(this->h), buf, stored_len);
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}
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return OP_SUCCESS;
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} /* End of storeRecvData() */
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