summaryrefslogtreecommitdiffstats
path: root/libnetutil/ICMPv6Header.h
diff options
context:
space:
mode:
Diffstat (limited to 'libnetutil/ICMPv6Header.h')
-rw-r--r--libnetutil/ICMPv6Header.h669
1 files changed, 669 insertions, 0 deletions
diff --git a/libnetutil/ICMPv6Header.h b/libnetutil/ICMPv6Header.h
new file mode 100644
index 0000000..f496caa
--- /dev/null
+++ b/libnetutil/ICMPv6Header.h
@@ -0,0 +1,669 @@
+/***************************************************************************
+ * ICMPv6Header.h -- The ICMPv6Header Class represents an ICMP version 6 *
+ * packet. 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) 1996-2023 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 ICMPv6HEADER_H
+#define ICMPv6HEADER_H 1
+
+#include "ICMPHeader.h"
+
+/******************************************************************************/
+/* IMPORTANT INFORMATION ON HOW TO USE THIS CLASS. */
+/******************************************************************************/
+/* This class represents an ICMPv6 messages. ICMPv6 messages may be of
+ * different types. Each type has its own header and possibly a variable
+ * length data field. Information messages have an "invoking packet" field
+ * which is the IP packet that triggered the emission of the ICMPv6 message.
+ * Other messages may contain a "data" field, like echo requests an replies.
+ * Some others may contain ICMPv6 Options.
+ *
+ * So the thing is, that this class only represents fixed-length ICMPv6
+ * headers and does NOT offer storage for ANY variable-length field. This
+ * fields may be added to the ICMPv6 header using instances of the RawData
+ * class the ICMPv6Option class or even the IPv6Header class (in those cases
+ * where a whole packet is appendend to the ICMPv6 message).
+ *
+ * So, how does this work? Let's look at some examples.
+ *
+ * 1. Imagine we need to build an ICMP echo request message that includes some
+ * arbitrary data to be echoed. We could do the following:
+ *
+ * u8 final_packet[1024]; <-- Buffer to store the resulting packet
+ * u32 final_packet_len=0; <-- Length of the resulting packet
+ * ICMPv6Header header; <-- The ICMPv6 fixed-length part
+ * RawData data; <-- The data to append to the echo message
+ *
+ * header.setType(ICMPv6_ECHO); <-- Set ICMPv6 type to "Echo request"
+ * data.store("1234567890"); <-- Store data we need to send.
+ * header.setNextElement(&data); <-- Tell ICMPv6Header what's after it
+ * header.setSum(); <-- Compute the checksum
+ *
+ * final_packet_len=header.dumpToBinaryBuffer(fina_packet, 1024);
+ * send_packet(final_packet, final_packet_len)
+ *
+ * 2. If we are sending a parameter problem message and we need to include the
+ * invoking datagram, we can call setNextElement() passing an IPv6Header
+ * pointer.
+ *
+ * u8 final_packet[1024]; <-- Buffer to store the resulting packet
+ * u32 final_packet_len=0; <-- Length of the resulting packet
+ * ICMPv6Header header; <-- The ICMPv6 fixed-length part
+ * IPv6Header ipv6; <-- The IPv6 packet that triggered ICMPv6
+ *
+ * header.setType(ICMPv6_PARAMPROB); <-- Set ICMPv6 type to "Param Problem"
+ * header.setNextElement(&ipv6); <-- Tell ICMPv6Header what's after it
+ * header.setSum(); <-- Compute the checksum
+ *
+ * Note that here we don't show how the ipv6 object is set.
+ *
+ * 3. If we are sending a router solicitation message, we'll call
+ * setNextElement() passing an IPv6Options Pointer.
+ *
+ * u8 final_packet[1024]; <-- Buffer to store the resulting packet
+ * u32 final_packet_len=0; <-- Length of the resulting packet
+ * ICMPv6Header header; <-- The ICMPv6 fixed-length part
+ * IPv6Options opts1; <-- IPv6 options
+ * IPv6Options opts2; <-- IPv6 options
+ * IPv6Options opts3; <-- IPv6 options
+ *
+ * header.setType(ICMPv6_ROUTERSOLICIT); <-- Set ICMPv6 type
+ *
+ * opts1.setXXXX(); <-- Set up the options
+ * .
+ * .
+ * .
+ * opts3.setYYYY();
+ *
+ * opts2.setNextElement(&opts3); <-- Link the options
+ * opts1.setNextElement(&opts2);
+ * header.setNextElement(&opts1);
+ * header.setNextElement(&ipv6); <-- Link the first option to the ICMPv6
+ * header.setSum(); <-- Compute the checksum
+ *
+ * And so on...
+ *
+ */
+
+
+/* Packet header diagrams included in this file have been taken from the
+ * following IETF RFC documents: RFC 4443, RFC 2461, RFC 2894 */
+
+/* ICMP types and codes.
+ * The following types and codes have been defined by IANA. A complete list
+ * may be found at http://www.iana.org/assignments/icmpv6-parameters
+ *
+ * Definitions on the first level of indentation are ICMPv6 Types.
+ * Definitions on the second level of indentation (values enclosed in
+ * parenthesis) are ICMPv6 Codes */
+#define ICMPv6_UNREACH 1 /* Destination unreachable [RFC 2463, 4443] */
+#define ICMPv6_UNREACH_NO_ROUTE (0) /* --> No route to destination */
+#define ICMPv6_UNREACH_PROHIBITED (1) /* --> Communication administratively prohibited */
+#define ICMPv6_UNREACH_BEYOND_SCOPE (2) /* --> Beyond scope of source address [RFC4443] */
+#define ICMPv6_UNREACH_ADDR_UNREACH (3) /* --> Address unreachable */
+#define ICMPv6_UNREACH_PORT_UNREACH (4) /* --> Port unreachable */
+#define ICMPv6_UNREACH_SRC_ADDR_FAILED (5) /* --> Source address failed ingress/egress policy [RFC4443] */
+#define ICMPv6_UNREACH_REJECT_ROUTE (6) /* --> Reject route to destination [RFC4443] */
+#define ICMPv6_PKTTOOBIG 2 /* Packet too big [RFC 2463, 4443] */
+#define ICMPv6_TIMXCEED 3 /* Time exceeded [RFC 2463, 4443] */
+#define ICMPv6_TIMXCEED_HOP_EXCEEDED (0) /* --> Hop limit exceeded in transit */
+#define ICMPv6_TIMXCEED_REASS_EXCEEDED (1) /* --> Fragment reassembly time exceeded */
+#define ICMPv6_PARAMPROB 4 /* Parameter problem [RFC 2463, 4443] */
+#define ICMPv6_PARAMPROB_FIELD (0) /* --> Erroneous header field encountered */
+#define ICMPv6_PARAMPROB_NEXT_HDR (1) /* --> Unrecognized Next Header type encountered */
+#define ICMPv6_PARAMPROB_OPTION (2) /* --> Unrecognized IPv6 option encountered */
+#define ICMPv6_ECHO 128 /* Echo request [RFC 2463, 4443] */
+#define ICMPv6_ECHOREPLY 129 /* Echo reply [RFC 2463, 4443] */
+#define ICMPv6_GRPMEMBQUERY 130 /* Group Membership Query [RFC 2710] */
+#define ICMPv6_GRPMEMBREP 131 /* Group Membership Report [RFC 2710] */
+#define ICMPv6_GRPMEMBRED 132 /* Group Membership Reduction [RFC 2710] */
+#define ICMPv6_ROUTERSOLICIT 133 /* Router Solicitation [RFC 2461] */
+#define ICMPv6_ROUTERADVERT 134 /* Router Advertisement [RFC 2461] */
+#define ICMPv6_NGHBRSOLICIT 135 /* Neighbor Solicitation [RFC 2461] */
+#define ICMPv6_NGHBRADVERT 136 /* Neighbor Advertisement [RFC 2461] */
+#define ICMPv6_REDIRECT 137 /* Redirect [RFC 2461] */
+#define ICMPv6_RTRRENUM 138 /* Router Renumbering [RFC 2894] */
+#define ICMPv6_RTRRENUM_COMMAND (0) /* --> Router Renumbering Command */
+#define ICMPv6_RTRRENUM_RESULT (1) /* --> Router Renumbering Result */
+#define ICMPv6_RTRRENUM_SEQ_RESET (255) /* Sequence Number Reset */
+#define ICMPv6_NODEINFOQUERY 139 /* ICMP Node Information Query [RFC 4620] */
+#define ICMPv6_NODEINFOQUERY_IPv6ADDR (0) /* --> The Data field contains an IPv6 address */
+#define ICMPv6_NODEINFOQUERY_NAME (1) /* --> The Data field contains a name */
+#define ICMPv6_NODEINFOQUERY_IPv4ADDR (2) /* --> The Data field contains an IPv4 address */
+#define ICMPv6_NODEINFORESP 140 /* ICMP Node Information Response [RFC 4620] */
+#define ICMPv6_NODEINFORESP_SUCCESS (0) /* --> A successful reply. */
+#define ICMPv6_NODEINFORESP_REFUSED (1) /* --> The Responder refuses to supply the answer */
+#define ICMPv6_NODEINFORESP_UNKNOWN (2) /* --> The Qtype of the Query is unknown */
+#define ICMPv6_INVNGHBRSOLICIT 141 /* Inverse Neighbor Discovery Solicitation Message [RFC 3122] */
+#define ICMPv6_INVNGHBRADVERT 142 /* Inverse Neighbor Discovery Advertisement Message [RFC 3122] */
+#define ICMPv6_MLDV2 143 /* MLDv2 Multicast Listener Report [RFC 3810] */
+#define ICMPv6_AGENTDISCOVREQ 144 /* Home Agent Address Discovery Request Message [RFC 3775] */
+#define ICMPv6_AGENTDISCOVREPLY 145 /* Home Agent Address Discovery Reply Message [RFC 3775] */
+#define ICMPv6_MOBPREFIXSOLICIT 146 /* Mobile Prefix Solicitation [RFC 3775] */
+#define ICMPv6_MOBPREFIXADVERT 147 /* Mobile Prefix Advertisement [RFC 3775] */
+#define ICMPv6_CERTPATHSOLICIT 148 /* Certification Path Solicitation [RFC 3971] */
+#define ICMPv6_CERTPATHADVERT 149 /* Certification Path Advertisement [RFC 3971] */
+#define ICMPv6_EXPMOBILITY 150 /* Experimental mobility protocols [RFC 4065] */
+#define ICMPv6_MRDADVERT 151 /* MRD, Multicast Router Advertisement [RFC 4286] */
+#define ICMPv6_MRDSOLICIT 152 /* MRD, Multicast Router Solicitation [RFC 4286] */
+#define ICMPv6_MRDTERMINATE 153 /* MRD, Multicast Router Termination [RFC 4286] */
+#define ICMPv6_FMIPV6 154 /* FMIPv6 messages [RFC 5568] */
+
+/* Node Information parameters */
+/* -> Query types */
+#define NI_QTYPE_NOOP 0
+#define NI_QTYPE_UNUSED 1
+#define NI_QTYPE_NODENAME 2
+#define NI_QTYPE_NODEADDRS 3
+#define NI_QTYPE_IPv4ADDRS 4
+/* -> Misc */
+#define NI_NONCE_LEN 8
+
+/* Nping ICMPv6Header Class internal definitions */
+#define ICMPv6_COMMON_HEADER_LEN 4
+#define ICMPv6_MIN_HEADER_LEN 8
+#define ICMPv6_UNREACH_LEN (ICMPv6_COMMON_HEADER_LEN+4)
+#define ICMPv6_PKTTOOBIG_LEN (ICMPv6_COMMON_HEADER_LEN+4)
+#define ICMPv6_TIMXCEED_LEN (ICMPv6_COMMON_HEADER_LEN+4)
+#define ICMPv6_PARAMPROB_LEN (ICMPv6_COMMON_HEADER_LEN+4)
+#define ICMPv6_ECHO_LEN (ICMPv6_COMMON_HEADER_LEN+4)
+#define ICMPv6_ECHOREPLY_LEN (ICMPv6_COMMON_HEADER_LEN+4)
+#define ICMPv6_ROUTERSOLICIT_LEN (ICMPv6_COMMON_HEADER_LEN+4)
+#define ICMPv6_ROUTERADVERT_LEN (ICMPv6_COMMON_HEADER_LEN+12)
+#define ICMPv6_NGHBRSOLICIT_LEN (ICMPv6_COMMON_HEADER_LEN+20)
+#define ICMPv6_NGHBRADVERT_LEN (ICMPv6_COMMON_HEADER_LEN+20)
+#define ICMPv6_REDIRECT_LEN (ICMPv6_COMMON_HEADER_LEN+36)
+#define ICMPv6_RTRRENUM_LEN (ICMPv6_COMMON_HEADER_LEN+12)
+#define ICMPv6_NODEINFO_LEN (ICMPv6_COMMON_HEADER_LEN+12)
+#define ICMPv6_MLD_LEN (ICMPv6_COMMON_HEADER_LEN+20)
+/* This must the MAX() of all values defined above*/
+#define ICMPv6_MAX_MESSAGE_BODY (ICMPv6_REDIRECT_LEN-ICMPv6_COMMON_HEADER_LEN)
+
+
+
+/* Node Information flag bitmaks */
+#define ICMPv6_NI_FLAG_T 0x01
+#define ICMPv6_NI_FLAG_A 0x02
+#define ICMPv6_NI_FLAG_C 0x04
+#define ICMPv6_NI_FLAG_L 0x08
+#define ICMPv6_NI_FLAG_G 0x10
+#define ICMPv6_NI_FLAG_S 0x20
+
+class ICMPv6Header : public ICMPHeader {
+
+ /**********************************************************************/
+ /* COMMON ICMPv6 packet HEADER */
+ /**********************************************************************/
+ /* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | Type | Code | Checksum |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | |
+ + Message Body +
+ | | */
+ struct nping_icmpv6_hdr{
+ u8 type;
+ u8 code;
+ u16 checksum;
+ u8 data[ICMPv6_MAX_MESSAGE_BODY];
+ }__attribute__((__packed__));
+ typedef struct nping_icmpv6_hdr nping_icmpv6_hdr_t;
+
+
+ /**********************************************************************/
+ /* ICMPv6 MESSAGE SPECIFIC HEADERS */
+ /**********************************************************************/
+
+ /* Destination Unreachable Message
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | Type | Code | Checksum |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | Unused |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | As much of invoking packet |
+ + as possible without the ICMPv6 packet +
+ | exceeding the minimum IPv6 MTU [IPv6] | */
+ struct dest_unreach_msg{
+ u32 unused;
+ //u8 invoking_pkt[?];
+ }__attribute__((__packed__));
+ typedef struct dest_unreach_msg dest_unreach_msg_t;
+
+
+ /* Packet Too Big Message
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | Type | Code | Checksum |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | MTU |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | As much of invoking packet |
+ + as possible without the ICMPv6 packet +
+ | exceeding the minimum IPv6 MTU [IPv6] | */
+ struct pkt_too_big_msg{
+ u32 mtu;
+ //u8 invoking_pkt[?];
+ }__attribute__((__packed__));
+ typedef struct pkt_too_big_msg pkt_too_big_msg_t;
+
+
+ /* Time Exceeded Message
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | Type | Code | Checksum |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | Unused |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | As much of invoking packet |
+ + as possible without the ICMPv6 packet +
+ | exceeding the minimum IPv6 MTU [IPv6] | */
+ struct time_exceeded_msg{
+ u32 unused;
+ //u8 invoking_pkt[?];
+ }__attribute__((__packed__));
+ typedef struct time_exceeded_msg time_exceeded_msg_t;
+
+
+ /* Parameter Problem Message
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | Type | Code | Checksum |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | Pointer |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | As much of invoking packet |
+ + as possible without the ICMPv6 packet +
+ | exceeding the minimum IPv6 MTU [IPv6] | */
+ struct parameter_problem_msg{
+ u32 pointer;
+ //u8 invoking_pkt[?];
+ }__attribute__((__packed__));
+ typedef struct parameter_problem_msg parameter_problem_msg_t;
+
+
+ /* Echo Request/Response Messages
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | Type | Code | Checksum |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | Identifier | Sequence Number |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | Data ...
+ +-+-+-+-+- */
+ struct echo_msg{
+ u16 id;
+ u16 seq;
+ //u8 data[?];
+ }__attribute__((__packed__));
+ typedef struct echo_msg echo_msg_t;
+
+ /* Router Advertisement Message
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | Type | Code | Checksum |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | Cur Hop Limit |M|O|H|Prf|P|R|R| Router Lifetime |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | Reachable Time |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | Retrans Timer |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | Options ...
+ +-+-+-+-+-+-+-+-+-+-+-+- */
+ struct router_advert_msg{
+ u8 current_hop_limit;
+ u8 autoconfig_flags; /* See RFC 5175 */
+ u16 router_lifetime;
+ u32 reachable_time;
+ u32 retransmission_timer;
+ //u8 icmpv6_options[?];
+ }__attribute__((__packed__));
+ typedef struct router_advert_msg router_advert_msg_t;
+
+
+ /* Router Solicitation Message
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | Type | Code | Checksum |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | Reserved |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | Options ...
+ +-+-+-+-+-+-+-+-+-+-+-+- */
+ struct router_solicit_msg{
+ u32 reserved;
+ //u8 icmpv6_options[?];
+ }__attribute__((__packed__));
+ typedef struct router_solicit_msg router_solicit_msg_t;
+
+
+ /* Neighbor Advertisement Message
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | Type | Code | Checksum |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ |R|S|O| Reserved |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | |
+ + +
+ | |
+ + Target Address +
+ | |
+ + +
+ | |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | Options ...
+ +-+-+-+-+-+-+-+-+-+-+-+- */
+ struct neighbor_advert_msg{
+ u8 flags;
+ u8 reserved[3];
+ u8 target_address[16];
+ //u8 icmpv6_options[?];
+ }__attribute__((__packed__));
+ typedef struct neighbor_advert_msg neighbor_advert_msg_t;
+
+
+ /* Neighbor Solicitation Message
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | Type | Code | Checksum |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | Reserved |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | |
+ + +
+ | |
+ + Target Address +
+ | |
+ + +
+ | |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | Options ...
+ +-+-+-+-+-+-+-+-+-+-+-+- */
+ struct neighbor_solicit_msg{
+ u32 reserved;
+ u8 target_address[16];
+ //u8 icmpv6_options[?];
+ }__attribute__((__packed__));
+ typedef struct neighbor_solicit_msg neighbor_solicit_msg_t;
+
+
+ /* Redirect Message
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | Type | Code | Checksum |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | Reserved |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | |
+ + +
+ | |
+ + Target Address +
+ | |
+ + +
+ | |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | |
+ + +
+ | |
+ + Destination Address +
+ | |
+ + +
+ | |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | Options ...
+ +-+-+-+-+-+-+-+-+-+-+-+- */
+ struct redirect_msg{
+ u32 reserved;
+ u8 target_address[16];
+ u8 destination_address[16];
+ //u8 icmpv6_options[?];
+ }__attribute__((__packed__));
+ typedef struct redirect_msg redirect_msg_t;
+
+
+ /* Router Renumbering Header
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | Type | Code | Checksum |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | SequenceNumber |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | SegmentNumber | Flags | MaxDelay |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | reserved |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | |
+ / RR Message Body /
+ | |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ */
+ struct router_renumbering_msg{
+ u32 seq;
+ u8 segment_number;
+ u8 flags;
+ u16 max_delay;
+ u32 reserved;
+ //u8 rr_msg_body[?];
+ }__attribute__((__packed__));
+ typedef struct router_renumbering_msg router_renumbering_msg_t;
+
+
+ /* Node Information Queries
+ 0 1 2 3
+ 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | Type | Code | Checksum |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | Qtype | unused |G|S|L|C|A|T|
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | |
+ + Nonce +
+ | |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | |
+ / Data /
+ | |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ */
+ struct nodeinfo_msg{
+ u16 qtype;
+ u16 flags;
+ u64 nonce;
+ //u8 data[?];
+ }__attribute__((__packed__));
+ typedef struct nodeinfo_msg nodeinfo_msg_t;
+
+
+ /* Multicast Listener Discovery
+ 0 1 2 3
+ 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | Type | Code | Checksum |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | Maximum Response Delay | Reserved |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | |
+ + +
+ | |
+ + Multicast Address +
+ | |
+ + +
+ | |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ */
+ struct mld_msg{
+ u16 max_response_delay;
+ u16 reserved;
+ u8 mcast_address[16];
+ }__attribute__((__packed__));
+ typedef struct mld_msg mld_msg_t;
+
+
+ nping_icmpv6_hdr_t h;
+
+ /* Helper pointers */
+ dest_unreach_msg_t *h_du;
+ pkt_too_big_msg_t *h_ptb;
+ time_exceeded_msg_t *h_te;
+ parameter_problem_msg_t *h_pp;
+ echo_msg_t *h_e;
+ router_advert_msg_t *h_ra;
+ router_solicit_msg_t *h_rs;
+ neighbor_advert_msg_t *h_na;
+ neighbor_solicit_msg_t *h_ns;
+ redirect_msg_t *h_r;
+ router_renumbering_msg_t *h_rr;
+ nodeinfo_msg_t *h_ni;
+ mld_msg_t *h_mld;
+
+ public:
+ ICMPv6Header();
+ ~ICMPv6Header();
+ void reset();
+ u8 *getBufferPointer();
+ int storeRecvData(const u8 *buf, size_t len);
+ int protocol_id() const;
+ int validate();
+ int print(FILE *output, int detail) const;
+
+ /* ICMP Type */
+ int setType(u8 val);
+ u8 getType() const;
+ bool validateType();
+ bool validateType(u8 val);
+
+ /* Code */
+ int setCode(u8 c);
+ u8 getCode() const;
+ bool validateCode();
+ bool validateCode(u8 type, u8 code);
+
+ /* Checksum */
+ int setSum();
+ int setSum(u16 s);
+ int setSumRandom();
+ u16 getSum() const;
+
+ int setReserved(u32 val);
+ u32 getReserved() const;
+ int setUnused(u32 val);
+ u32 getUnused() const;
+
+ int setFlags(u8 val);
+ u8 getFlags() const;
+
+ int setMTU(u32 mtu);
+ u32 getMTU() const;
+
+ /* Parameter problem */
+ int setPointer(u32 val);
+ u32 getPointer() const;
+
+ /* Echo */
+ int setIdentifier(u16 val);
+ u16 getIdentifier() const;
+ int setSequence(u16 val);
+ int setSequence(u32 val);
+ u32 getSequence() const;
+
+ /* Router Advertisement */
+ int setCurrentHopLimit(u8 val);
+ u8 getCurrentHopLimit() const;
+
+ int setRouterLifetime(u16 val);
+ u16 getRouterLifetime() const;
+
+ int setReachableTime(u32 val);
+ u32 getReachableTime() const;
+
+ int setRetransmissionTimer(u32 val);
+ u32 getRetransmissionTimer() const;
+
+ int setTargetAddress(struct in6_addr addr);
+ struct in6_addr getTargetAddress() const;
+
+ int setDestinationAddress(struct in6_addr addr);
+ struct in6_addr getDestinationAddress() const;
+
+ int setSegmentNumber(u8 val);
+ u8 getSegmentNumber() const;
+
+ int setMaxDelay(u16 val);
+ u16 getMaxDelay() const;
+
+ /* Node Information Queries */
+ int setQtype(u16 val);
+ u16 getQtype() const;
+ int setNodeInfoFlags(u16 val);
+ u16 getNodeInfoFlags() const;
+ int setG(bool flag_value=true);
+ bool getG() const;
+ int setS(bool flag_value=true);
+ bool getS() const;
+ int setL(bool flag_value=true);
+ bool getL() const;
+ int setC(bool flag_value=true);
+ bool getC() const;
+ int setA(bool flag_value=true);
+ bool getA() const;
+ int setT(bool flag_value=true);
+ bool getT() const;
+ int setNonce(u64 nonce_value);
+ int setNonce(const u8 *nonce);
+ u64 getNonce() const;
+
+ /* Multicast Listener Discovery */
+ int setMulticastAddress(struct in6_addr addr);
+ struct in6_addr getMulticastAddress() const;
+
+ /* Misc */
+ int getHeaderLengthFromType(u8 type) const;
+ bool isError() const;
+ const char *type2string(int type, int code) const;
+
+}; /* End of class ICMPv6Header */
+
+#endif
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-23 04:21:36 +0000