PenTest/nmap
1
0
Fork 0
mirror of https://github.com/nmap/nmap.git synced 2025-12-12 02:39:03 +00:00
Code Issues Projects Releases Wiki Activity
Files
0340c7321c78cb2af1886c2b10a686c67d4a23f1
nmap/nping/EchoHeader.h
david ed2ba4e168 Copy nping, nsock, nbase, zenmap, ncat from their homes in /. 
If you have trouble updating after this revision you need to follow
these instructions. You have probably just seen an error like this:

svn: URL 'svn://svn.insecure.org/nping' of existing directory 'nping'
does not match expected URL 'svn://svn.insecure.org/nmap/nping'

This is caused by the replacement of SVN externals.

Here's what you need to do. First, save any local changes you might have
in the nping, nsock, nbase, ncat, and zenmap directories. (For example
by running "cd nping; svn diff > ../nping.diff".) If you don't have any
local changes you can skip this step.

Then run these commands:

rm -rf nping/ nsock/ nbase/ ncat/ zenmap/
svn update
svn cleanup

If all else fails, you can just delete your whole working directory and
check out anew:

svn co --username guest --password "" svn://svn.insecure.org/nmap

There may be further discussion in the mailing list thread at
http://seclists.org/nmap-dev/2011/q4/303.
2011-11-16 21:49:44 +00:00

362 lines
16 KiB
C++
Executable File
Raw Blame History

/***************************************************************************
* EchoHeader.h -- The EchoHeader Class represents packets of the Nping *
* Echo Protocol. It contains the appropriate methods to set/get all *
* header fields. In general these methods do error checking and perform *
* byte order conversions. *
* *
***********************IMPORTANT NMAP LICENSE TERMS************************
* *
* The Nmap Security Scanner is (C) 1996-2011 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 with the clarifications and exceptions described *
* below. 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@insecure.com). Dozens of software vendors already *
* license Nmap technology such as host discovery, port scanning, OS *
* detection, and version detection. *
* *
* Note that the GPL places important restrictions on "derived works", yet *
* it does not provide a detailed definition of that term. To avoid *
* misunderstandings, we consider an application to constitute a *
* "derivative work" for the purpose of this license if it does any of the *
* following: *
* o Integrates source code from Nmap *
* o Reads or includes Nmap copyrighted data files, such as *
* nmap-os-db or nmap-service-probes. *
* o Executes Nmap and parses the results (as opposed to typical shell or *
* execution-menu apps, which simply display raw Nmap output and so are *
* not derivative works.) *
* o Integrates/includes/aggregates Nmap into a proprietary executable *
* installer, such as those produced by InstallShield. *
* o Links to a library or executes a program that does any of the above *
* *
* The term "Nmap" should be taken to also include any portions or derived *
* works of Nmap. This list is not exclusive, but is meant to clarify our *
* interpretation of derived works with some common examples. Our *
* interpretation applies only to Nmap--we don't speak for other people's *
* GPL works. *
* *
* If you have any questions about the GPL licensing restrictions on using *
* Nmap in non-GPL works, we would be 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 as well as helping to *
* fund the continued development of Nmap technology. Please email *
* sales@insecure.com for further information. *
* *
* As a 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. You must obey the GNU GPL in all *
* respects for all of the code used other than OpenSSL. If you modify *
* this file, you may extend this exception to your version of the file, *
* but you are not obligated to do so. *
* *
* If you received these files with a written license agreement or *
* contract stating terms other than the terms above, then that *
* alternative license agreement takes precedence over these comments. *
* *
* 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 nmap-dev@insecure.org for possible incorporation into the main *
* distribution. By sending these changes to Fyodor or one of the *
* Insecure.Org development mailing lists, it is assumed 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 GNU *
* General Public License v2.0 for more details at *
* http://www.gnu.org/licenses/gpl-2.0.html , or in the COPYING file *
* included with Nmap. *
* *
***************************************************************************/
#ifndef __ECHOHEADER_H__
#define __ECHOHEADER_H__ 1
#include "nping.h"
#define ECHO_CURRENT_PROTO_VER 0x01
/* Lengths */
#define STD_NEP_HEADER_LEN 16 /* Common NEP header length */
#define MAC_LENGTH 32 /* Length of message authentication codes */
#define NONCE_LEN 32 /* Length of client/server nonces */
#define PARTNER_IP_LEN 16 /* Length of Partner IP field */
#define PACKETSPEC_FIELD_LEN 108 /* Length of the packet specification */
#define ERROR_MSG_LEN 80 /* Length of NEP_ERROR message strings */
#define NEP_HANDSHAKE_SERVER_LEN 96
#define NEP_HANDSHAKE_CLIENT_LEN 144
#define NEP_HANDSHAKE_FINAL_LEN 112
#define NEP_PACKETSPEC_LEN 160
#define NEP_READY_LEN 48
#define NEP_ERROR_LEN 128
#define ECHOED_PKT_HEADER_LEN 4 /* Length of {DLT Type, Packet Length} */
#define MAX_ECHOED_PACKET_LEN 9212 /* Max length for echoed packets */
#define MAX_DATA_LEN (ECHOED_PKT_HEADER_LEN + MAX_ECHOED_PACKET_LEN + MAC_LENGTH)
#define NEP_ECHO_MIN_LEN 64
#define NEP_ECHO_MAX_LEN ( STD_NEP_HEADER_LEN + MAX_DATA_LEN )
#define MAX_NEP_PACKET_LENGTH ( STD_NEP_HEADER_LEN + MAX_DATA_LEN )
/* Message types */
#define TYPE_NEP_HANDSHAKE_SERVER 0x01
#define TYPE_NEP_HANDSHAKE_CLIENT 0x02
#define TYPE_NEP_HANDSHAKE_FINAL 0x03
#define TYPE_NEP_PACKET_SPEC 0x04
#define TYPE_NEP_READY 0x05
#define TYPE_NEP_ECHO 0x06
#define TYPE_NEP_ERROR 0x07
/* Field specifiers */
#define PSPEC_IPv4_TOS 0xA0
#define PSPEC_IPv4_ID 0xA1
#define PSPEC_IPv4_FRAGOFF 0xA2
#define PSPEC_IPv4_PROTO 0xA3
#define PSPEC_IPv6_TCLASS 0xB0
#define PSPEC_IPv6_FLOW 0xB1
#define PSPEC_IPv6_NHDR 0xB2
#define PSPEC_TCP_SPORT 0xC0
#define PSPEC_TCP_DPORT 0xC1
#define PSPEC_TCP_SEQ 0xC2
#define PSPEC_TCP_ACK 0xC3
#define PSPEC_TCP_FLAGS 0xC4
#define PSPEC_TCP_WIN 0xC5
#define PSPEC_TCP_URP 0xC6
#define PSPEC_ICMP_TYPE 0xD0
#define PSPEC_ICMP_CODE 0xD1
#define PSPEC_UDP_SPORT 0xE0
#define PSPEC_UDP_DPORT 0xE1
#define PSPEC_UDP_LEN 0xE2
#define PSPEC_PAYLOAD_MAGIC 0xFF
/* Protocol identifiers for NEP_PACKET_SPEC */
#define PSPEC_PROTO_TCP 0x06
#define PSPEC_PROTO_UDP 0x11
#define PSPEC_PROTO_ICMP 0x01
#define DLT_NODATALINKHEADERINCLUDED 0x0000
/* GENERAL FORMAT:
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
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Version | Message Type | Total Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Sequence Number |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Timestamp |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Reserved |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| |
. .
. DATA .
. .
| |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| |
. .
. Message Authentication Code .
. .
| |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
*/
class EchoHeader : public ApplicationLayerElement {
private:
/* Common NEP packet header */
struct nep_hdr{
u8 echo_ver; /**< Protocol Version */
u8 echo_mtype; /**< Message Type */
u16 echo_tlen; /**< Total Length */
u32 echo_seq; /**< Sequence Number */
u32 echo_ts; /**< Timestamp */
u32 echo_res; /**< Reserved */
u8 data[MAX_DATA_LEN];
}__attribute__((__packed__));
typedef struct nep_hdr echohdr_t;
/* NEP_HANDSHAKE_SERVER data */
struct nep_hs_serv_data{
u8 server_nonce[NONCE_LEN];
u8 reserved[16];
u8 mac[MAC_LENGTH];
}__attribute__((__packed__));
typedef struct nep_hs_serv_data nep_hs_serv_data_t;
/* NEP_HANDSHAKE_CLIENT data */
struct nep_hs_clnt_data{
u8 server_nonce[NONCE_LEN];
u8 client_nonce[NONCE_LEN];
u8 partner_ip[PARTNER_IP_LEN];
u8 ip_version;
u8 reserved[15];
u8 mac[MAC_LENGTH];
}__attribute__((__packed__));
typedef struct nep_hs_clnt_data nep_hs_clnt_data_t;
/* NEP_HANDSHAKE_FINAL data */
struct nep_hs_final_data{
u8 client_nonce[NONCE_LEN];
u8 partner_ip[PARTNER_IP_LEN];
u8 ip_version;
u8 reserved[15];
u8 mac[MAC_LENGTH];
}__attribute__((__packed__));
typedef struct nep_hs_final_data nep_hs_final_data_t;
/* NEP_PACKET_SPEC data */
struct nep_packet_spec_data{
u8 ip_version;
u8 protocol;
u16 packet_count;
u8 packetspec[PACKETSPEC_FIELD_LEN];
u8 mac[MAC_LENGTH];
}__attribute__((__packed__));
typedef struct nep_packet_spec_data nep_packet_spec_data_t;
/* NEP_READY data */
struct nep_ready_data{
u8 mac[MAC_LENGTH];
}__attribute__((__packed__));
typedef struct nep_ready_data nep_ready_data_t;
/* NEP_ECHO data */
struct nep_echo_data{
u16 dlt_type;
u16 packet_len;
u8 payload_and_mac[MAX_ECHOED_PACKET_LEN + MAC_LENGTH];
}__attribute__((__packed__));
typedef struct nep_echo_data nep_echo_data_t;
/* NEP_ERROR data */
struct nep_error_data{
u8 errmsg[ERROR_MSG_LEN];
u8 mac[MAC_LENGTH];
}__attribute__((__packed__));
typedef struct nep_error_data nep_error_data_t;
/* Attributes */
echohdr_t h;
echohdr_t h_tmp;
nep_hs_serv_data_t *data_hsserv;
nep_hs_clnt_data_t *data_hsclnt;
nep_hs_final_data_t *data_hsfinal;
nep_packet_spec_data_t *data_pspec;
nep_ready_data_t *data_ready;
nep_echo_data_t *data_echo;
u8 *echo_mac;
int echo_bytes;
nep_error_data_t *data_error;
u8 *fs_off; /**< Current field spec offset */
int fs_bytes; /**< Currend field spec byte count */
private:
int getFieldLength(u8 field);
public:
EchoHeader();
~EchoHeader();
void reset();
u8 *getBufferPointer();
int storeRecvData(const u8 *buf, size_t len);
int protocol_id() const;
int setVersion(u8 val);
u8 getVersion();
int setMessageType(u8 val);
u8 getMessageType();
int setTotalLength(u16 val);
int setTotalLength();
u16 getTotalLength();
int setSequenceNumber(u32 val);
u32 getSequenceNumber();
int setTimestamp(u32 val);
int setTimestamp();
u32 getTimestamp();
int setReserved(u32 val);
u32 getReserved();
int setMessageAuthenticationCode(u8 *key, size_t keylen);
u8 *getMessageAuthenticationCode();
int verifyMessageAuthenticationCode(u8 *key, size_t keylen);
int setServerNonce(u8 *nonce);
u8 *getServerNonce();
int setClientNonce(u8 *nonce);
u8 *getClientNonce();
int setPartnerAddress(struct in_addr val);
int setPartnerAddress(struct in6_addr val);
int getPartnerAddress(struct in_addr *dst);
int getPartnerAddress(struct in6_addr *dst);
int setIPVersion(u8 ver);
u8 getIPVersion();
int setProtocol(u8 proto);
u8 getProtocol();
int setPacketCount(u16 c);
u16 getPacketCount();
int addFieldSpec(u8 field, u8 *val);
int addFieldSpec(u8 field, u8 *val, size_t flen);
int getNextFieldSpec(u8 *field, u8 *dst_buff, size_t *final_len);
int rewindFieldSpecCounters();
int setDLT(u16 dlt);
u16 getDLT();
int setPacketLength(u16 len);
u16 getPacketLength();
int setEchoedPacket(const u8 *pkt, size_t pktlen);
u8 *getEchoedPacket(u16 *final_len);
u8 *getEchoedPacket();
int updateEchoInternals();
int setErrorMessage(const char *err);
char *getErrorMessage();
u8 *getCiphertextBounds(size_t *len);
u8 *getCiphertextBounds(size_t *final_len, int message_type);
u8 *encrypt(u8 *key, size_t key_len, u8 *iv);
u8 *decrypt(u8 *key, size_t key_len, u8 *iv, int message_type);
};
#endif /* __ECHOHEADER_H__ */
Reference in New Issue View Git Blame Copy Permalink