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Diffstat (limited to 'libnetutil/ICMPv6RRBody.h')
| -rw-r--r-- | libnetutil/ICMPv6RRBody.h | 200 |
1 files changed, 200 insertions, 0 deletions
diff --git a/libnetutil/ICMPv6RRBody.h b/libnetutil/ICMPv6RRBody.h new file mode 100644 index 0000000..4f6deff --- /dev/null +++ b/libnetutil/ICMPv6RRBody.h @@ -0,0 +1,200 @@ +/*************************************************************************** + * ICMPv6RRBody.cc -- The ICMPv6RRBody Class represents an ICMP version 6 * + * Router Renumbering message body. It contains methods to set any header * + * field. In general, these methods do error checkings and byte order * + * conversions. * + * * + ***********************IMPORTANT NMAP LICENSE TERMS************************ + * + * The Nmap Security Scanner is (C) 1996-2023 Nmap Software LLC ("The Nmap + * Project"). Nmap is also a registered trademark of the Nmap Project. + * + * This program is distributed under the terms of the Nmap Public Source + * License (NPSL). The exact license text applying to a particular Nmap + * release or source code control revision is contained in the LICENSE + * file distributed with that version of Nmap or source code control + * revision. More Nmap copyright/legal information is available from + * https://nmap.org/book/man-legal.html, and further information on the + * NPSL license itself can be found at https://nmap.org/npsl/ . This + * header summarizes some key points from the Nmap license, but is no + * substitute for the actual license text. + * + * Nmap is generally free for end users to download and use themselves, + * including commercial use. It is available from https://nmap.org. + * + * The Nmap license generally prohibits companies from using and + * redistributing Nmap in commercial products, but we sell a special Nmap + * OEM Edition with a more permissive license and special features for + * this purpose. See https://nmap.org/oem/ + * + * If you have received a written Nmap license agreement or contract + * stating terms other than these (such as an Nmap OEM license), you may + * choose to use and redistribute Nmap under those terms instead. + * + * The official Nmap Windows builds include the Npcap software + * (https://npcap.com) for packet capture and transmission. It is under + * separate license terms which forbid redistribution without special + * permission. So the official Nmap Windows builds may not be redistributed + * without special permission (such as an Nmap OEM license). + * + * 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. + * + * Source code also allows you to port Nmap to new platforms, fix bugs, and add + * new features. You are highly encouraged to submit your changes as a Github PR + * or by email to the dev@nmap.org mailing list for possible incorporation into + * the main distribution. Unless you specify otherwise, it is understood that + * you are offering us very broad rights to use your submissions as described in + * the Nmap Public Source License Contributor Agreement. This is important + * because we fund the project by selling licenses with various terms, and also + * because the inability to relicense code has caused devastating problems for + * other Free Software projects (such as KDE and NASM). + * + * The free version of Nmap 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. Warranties, + * indemnification and commercial support are all available through the + * Npcap OEM program--see https://nmap.org/oem/ + * + ***************************************************************************/ +/* This code was originally part of the Nping tool. */ + +#ifndef ICMPv6RRBODY_H +#define ICMPv6RRBODY_H 1 + +#include "NetworkLayerElement.h" + +/* Packet header diagrams included in this file have been taken from the + * following IETF RFC documents: RFC 2894 */ + +/* Nping ICMPv6RRBody Class internal definitions */ +#define ICMPv6_RR_MATCH_PREFIX_LEN 24 +#define ICMPv6_RR_USE_PREFIX_LEN 32 +#define ICMPv6_RR_RESULT_MSG_LEN 24 +/* This must the MAX() of all values defined above*/ +#define ICMPv6_RR_MAX_LENGTH (ICMPv6_RR_USE_PREFIX_LEN) +#define ICMPv6_RR_MIN_LENGTH (ICMPv6_RR_MATCH_PREFIX_LEN) + + +class ICMPv6RRBody : public NetworkLayerElement { + + private: + + /**********************************************************************/ + /* COMMON ICMPv6 OPTION HEADER */ + /**********************************************************************/ + + struct nping_icmpv6_rr_body{ + u8 data[ICMPv6_RR_MAX_LENGTH]; + }__attribute__((__packed__)); + typedef struct nping_icmpv6_rr_body nping_icmpv6_rr_body_t; + + /**********************************************************************/ + /* ICMPv6 OPTION FORMATS */ + /**********************************************************************/ + + + /* Match-Prefix Part + + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | OpCode | OpLength | Ordinal | MatchLen | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | MinLen | MaxLen | reserved | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | | + +- -+ + | | + +- MatchPrefix -+ + | | + +- -+ + | | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + */ + struct rr_match_prefix{ + u8 op_code; + u8 op_length; + u8 ordinal; + u8 match_length; + u8 min_length; + u8 max_length; + u16 reserved; + u8 match_prefix[16]; + }__attribute__((__packed__)); + typedef struct rr_match_prefix rr_match_prefix_t; + + + /* Use-Prefix Part + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | UseLen | KeepLen | FlagMask | RAFlags | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | Valid Lifetime | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | Preferred Lifetime | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + |V|P| reserved | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | | + +- -+ + | | + +- UsePrefix -+ + | | + +- -+ + | | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + */ + struct rr_use_prefix{ + u8 use_len; + u8 keep_len; + u8 flag_mask; + u8 ra_flags; + u32 valid_lifetime; + u32 preferred_lifetime; + u8 flags; + u8 reserved[3]; + u8 use_prefix[16]; + }__attribute__((__packed__)); + typedef struct rr_use_prefix rr_use_prefix_t; + + + /* Result Message + + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | reserved |B|F| Ordinal | MatchedLen | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | InterfaceIndex | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | | + +- -+ + | | + +- MatchedPrefix -+ + | | + +- -+ + | | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ */ + struct rr_result_msg{ + u8 reserved; + u8 flags; + u8 ordinal; + u8 matched_length; + u32 interface_index; + u8 matched_prefix[16]; + }__attribute__((__packed__)); + typedef struct rr_result_msg rr_result_msg_t; + + nping_icmpv6_rr_body_t h; + + rr_match_prefix_t *h_mp; + rr_use_prefix_t *h_up; + rr_result_msg_t *h_r; + + public: + ICMPv6RRBody(); + ~ICMPv6RRBody(); + void reset(); + u8 *getBufferPointer(); + int storeRecvData(const u8 *buf, size_t len); + +}; /* End of class ICMPv6RRBody */ + +#endif |