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nmap/libnetutil/ICMPv6Option.h
d33tah ccd0c02a4c Add a lacking space in the license comment. The command I used to do this is: 
for file in `grep "* including the terms and conditions of this license text as well.       \*" * -r --files-with-match `; do sed "s/\* including the terms and conditions of this license text as well.       \*/* including the terms and conditions of this license text as well.        */g" -i $file; done
2013-09-11 19:06:20 +00:00

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/***************************************************************************
* ICMPv6Option.h -- The ICMPv6Option Class represents an ICMP version 6 *
* option. It contains methods to set any header field. In general, these *
* methods do error checkings and byte order conversion. *
* *
***********************IMPORTANT NMAP LICENSE TERMS************************
* *
* The Nmap Security Scanner is (C) 1996-2013 Insecure.Com LLC. Nmap is *
* also a registered trademark of Insecure.Com LLC. This program is free *
* software; you may redistribute and/or modify it under the terms of the *
* GNU General Public License as published by the Free Software *
* Foundation; Version 2 ("GPL"), BUT ONLY WITH ALL OF THE CLARIFICATIONS *
* AND EXCEPTIONS DESCRIBED HEREIN. This guarantees your right to use, *
* modify, and redistribute this software under certain conditions. If *
* you wish to embed Nmap technology into proprietary software, we sell *
* alternative licenses (contact sales@nmap.com). Dozens of software *
* vendors already license Nmap technology such as host discovery, port *
* scanning, OS detection, version detection, and the Nmap Scripting *
* Engine. *
* *
* Note that the GPL places important restrictions on "derivative works", *
* yet it does not provide a detailed definition of that term. To avoid *
* misunderstandings, we interpret that term as broadly as copyright law *
* allows. For example, we consider an application to constitute a *
* derivative work for the purpose of this license if it does any of the *
* following with any software or content covered by this license *
* ("Covered Software"): *
* *
* o Integrates source code from Covered Software. *
* *
* o Reads or includes copyrighted data files, such as Nmap's nmap-os-db *
* or nmap-service-probes. *
* *
* o Is designed specifically to execute Covered Software and parse the *
* results (as opposed to typical shell or execution-menu apps, which will *
* execute anything you tell them to). *
* *
* o Includes Covered Software in a proprietary executable installer. The *
* installers produced by InstallShield are an example of this. Including *
* Nmap with other software in compressed or archival form does not *
* trigger this provision, provided appropriate open source decompression *
* or de-archiving software is widely available for no charge. For the *
* purposes of this license, an installer is considered to include Covered *
* Software even if it actually retrieves a copy of Covered Software from *
* another source during runtime (such as by downloading it from the *
* Internet). *
* *
* o Links (statically or dynamically) to a library which does any of the *
* above. *
* *
* o Executes a helper program, module, or script to do any of the above. *
* *
* This list is not exclusive, but is meant to clarify our interpretation *
* of derived works with some common examples. Other people may interpret *
* the plain GPL differently, so we consider this a special exception to *
* the GPL that we apply to Covered Software. Works which meet any of *
* these conditions must conform to all of the terms of this license, *
* particularly including the GPL Section 3 requirements of providing *
* source code and allowing free redistribution of the work as a whole. *
* *
* As another special exception to the GPL terms, Insecure.Com LLC grants *
* permission to link the code of this program with any version of the *
* OpenSSL library which is distributed under a license identical to that *
* listed in the included docs/licenses/OpenSSL.txt file, and distribute *
* linked combinations including the two. *
* *
* Any redistribution of Covered Software, including any derived works, *
* must obey and carry forward all of the terms of this license, including *
* obeying all GPL rules and restrictions. For example, source code of *
* the whole work must be provided and free redistribution must be *
* allowed. All GPL references to "this License", are to be treated as *
* including the terms and conditions of this license text as well. *
* *
* Because this license imposes special exceptions to the GPL, Covered *
* Work may not be combined (even as part of a larger work) with plain GPL *
* software. The terms, conditions, and exceptions of this license must *
* be included as well. This license is incompatible with some other open *
* source licenses as well. In some cases we can relicense portions of *
* Nmap or grant special permissions to use it in other open source *
* software. Please contact fyodor@nmap.org with any such requests. *
* Similarly, we don't incorporate incompatible open source software into *
* Covered Software without special permission from the copyright holders. *
* *
* If you have any questions about the licensing restrictions on using *
* Nmap in other works, are happy to help. As mentioned above, we also *
* offer alternative license to integrate Nmap into proprietary *
* applications and appliances. These contracts have been sold to dozens *
* of software vendors, and generally include a perpetual license as well *
* as providing for priority support and updates. They also fund the *
* continued development of Nmap. Please email sales@nmap.com for further *
* information. *
* *
* If you have received a written license agreement or contract for *
* Covered Software stating terms other than these, you may choose to use *
* and redistribute Covered Software under those terms instead of these. *
* *
* 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 (none *
* have been found so far). *
* *
* Source code also allows you to port Nmap to new platforms, fix bugs, *
* and add new features. You are highly encouraged to send your changes *
* to the dev@nmap.org mailing list for possible incorporation into the *
* main distribution. By sending these changes to Fyodor or one of the *
* Insecure.Org development mailing lists, or checking them into the Nmap *
* source code repository, it is understood (unless you specify otherwise) *
* that you are offering the Nmap Project (Insecure.Com LLC) the *
* unlimited, non-exclusive right to reuse, modify, and relicense the *
* code. Nmap will always be available Open Source, but this is important *
* because the inability to relicense code has caused devastating problems *
* for other Free Software projects (such as KDE and NASM). We also *
* occasionally relicense the code to third parties as discussed above. *
* If you wish to specify special license conditions of your *
* contributions, just say so when you send them. *
* *
* This program 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. See the Nmap *
* license file for more details (it's in a COPYING file included with *
* Nmap, and also available from https://svn.nmap.org/nmap/COPYING *
* *
***************************************************************************/
/* This code was originally part of the Nping tool. */
#ifndef __ICMPv6OPTION_H__
#define __ICMPv6OPTION_H__ 1
#include "NetworkLayerElement.h"
/* Packet header diagrams included in this file have been taken from the
* following IETF RFC documents: RFC 2461, RFC 2894 */
/* The following codes have been defined by IANA. A complete list may be found
* at http://www.iana.org/assignments/icmpv6-parameters */
/* ICMPv6 Option Types */
#define ICMPv6_OPTION_SRC_LINK_ADDR 1
#define ICMPv6_OPTION_TGT_LINK_ADDR 2
#define ICMPv6_OPTION_PREFIX_INFO 3
#define ICMPv6_OPTION_REDIR_HDR 4
#define ICMPv6_OPTION_MTU 5
/* Nping ICMPv6Options Class internal definitions */
#define ICMPv6_OPTION_COMMON_HEADER_LEN 2
#define ICMPv6_OPTION_MIN_HEADER_LEN 8
#define ICMPv6_OPTION_SRC_LINK_ADDR_LEN (ICMPv6_OPTION_COMMON_HEADER_LEN+6)
#define ICMPv6_OPTION_TGT_LINK_ADDR_LEN (ICMPv6_OPTION_COMMON_HEADER_LEN+6)
#define ICMPv6_OPTION_PREFIX_INFO_LEN (ICMPv6_OPTION_COMMON_HEADER_LEN+30)
#define ICMPv6_OPTION_REDIR_HDR_LEN (ICMPv6_OPTION_COMMON_HEADER_LEN+6)
#define ICMPv6_OPTION_MTU_LEN (ICMPv6_OPTION_COMMON_HEADER_LEN+6)
/* This must the MAX() of all values defined above*/
#define ICMPv6_OPTION_MAX_MESSAGE_BODY (ICMPv6_OPTION_PREFIX_INFO_LEN-ICMPv6_OPTION_COMMON_HEADER_LEN)
#define ICMPv6_OPTION_LINK_ADDRESS_LEN 6
class ICMPv6Option : public NetworkLayerElement {
private:
/**********************************************************************/
/* COMMON ICMPv6 OPTION HEADER */
/**********************************************************************/
struct nping_icmpv6_option{
u8 type;
u8 length;
u8 data[ICMPv6_OPTION_MAX_MESSAGE_BODY];
}__attribute__((__packed__));
typedef struct nping_icmpv6_option nping_icmpv6_option_t;
/**********************************************************************/
/* ICMPv6 OPTION FORMATS */
/**********************************************************************/
/* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length | ... |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
~ ... ~
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ */
/* Source/Target Link-layer Address
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length | Link-Layer Address ...
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ */
struct link_addr_option{
u8 link_addr[6];
}__attribute__((__packed__));
typedef struct link_addr_option link_addr_option_t;
/* Prefix Information
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length | Prefix Length |L|A| Reserved1 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Valid Lifetime |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Preferred Lifetime |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Reserved2 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| |
+ +
| |
+ Prefix +
| |
+ +
| |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ */
struct prefix_info_option{
u8 prefix_length;
u8 flags;
u32 valid_lifetime;
u32 preferred_lifetime;
u32 reserved;
u8 prefix[16];
}__attribute__((__packed__));
typedef struct prefix_info_option prefix_info_option_t;
/* Redirect Header
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length | Reserved |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Reserved |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| |
~ IP header + data ~
| |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ */
struct redirect_option{
u16 reserved_1;
u32 reserved_2;
//u8 invoking_pkt[?];
}__attribute__((__packed__));
typedef struct redirect_option redirect_option_t;
/* MTU
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length | Reserved |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| MTU |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ */
struct mtu_option{
u16 reserved;
u32 mtu;
}__attribute__((__packed__));
typedef struct mtu_option mtu_option_t;
nping_icmpv6_option_t h;
link_addr_option_t *h_la;
prefix_info_option_t *h_pi;
redirect_option_t *h_r;
mtu_option_t *h_mtu;
public:
ICMPv6Option();
~ICMPv6Option();
void reset();
u8 *getBufferPointer();
int storeRecvData(const u8 *buf, size_t len);
int protocol_id() const;
int setType(u8 val);
u8 getType();
bool validateType(u8 val);
int setLength(u8 val);
u8 getLength();
int setLinkAddress(u8* val);
u8 *getLinkAddress();
int setPrefixLength(u8 val);
u8 getPrefixLength();
int setFlags(u8 val);
u8 getFlags();
int setValidLifetime(u32 val);
u32 getValidLifetime();
int setPreferredLifetime(u32 val);
u32 getPreferredLifetime();
int setPrefix(u8 *val);
u8 *getPrefix();
int setMTU(u32 val);
u32 getMTU();
int getHeaderLengthFromType(u8 type);
}; /* End of class ICMPv6Option */
#endif
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