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nmap_rpc.h

/***************************************************************************
 * rpc.h -- Functions related to the RPCGrind (-sR) facility of Nmap.      *
 * This includes reading the nmap-rpc services file and sending rpc        *
 * queries and interpreting responses.  The actual scan engine used for    *
 * rpc grinding is pos_scan (which is not in this file)                    *
 *                                                                         *
 ***********************IMPORTANT NMAP LICENSE TERMS************************
 *                                                                         *
 * The Nmap Security Scanner is (C) 1996-2004 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.  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 may be  *
 * willing to sell alternative licenses (contact sales@insecure.com).      *
 * Many security scanner vendors already license Nmap technology such as  *
 * our remote OS fingerprinting database and code, service/version         *
 * detection system, and port scanning code.                               *
 *                                                                         *
 * 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-fingerprints or nmap-service-probes.                          *
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 *   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 *
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 *                                                                         *
 * We don't consider these to be added restrictions on top of the GPL, but *
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 * Torvalds has announced his interpretation of how "derived works"        *
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 * Nmap - we don't speak for any other GPL products.                       *
 *                                                                         *
 * If you have any questions about the GPL licensing restrictions on using *
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 * we also offer alternative license to integrate Nmap into proprietary    *
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 * 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  *
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 * but you are not obligated to do so.                                     *
 *                                                                         *
 * If you received these files with a written license agreement or         *
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 *                                                                         *
 * Source is provided to this software because we believe users have a     *
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 * 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,    *
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 *                                                                         *
 * This program is distributed in the hope that it will be useful, but     *
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 * General Public License for more details at                              *
 * http://www.gnu.org/copyleft/gpl.html , or in the COPYING file included  *
 * with Nmap.                                                              *
 *                                                                         *
 ***************************************************************************/

/* $Id: nmap_rpc.h,v 1.10 2004/08/29 09:12:03 fyodor Exp $ */

#ifndef NMAP_RPC_H
#define NMAP_RPC_H

#include "nmap.h"
#include "global_structures.h"
#include "charpool.h"
#include "nmap_error.h"
#include "utils.h"
#include "timing.h"

/* rpc related #defines */
#define RECORD_MARKING 4        /* length of recoder marking (bytes)     */

/* defines used to check RPC answers */

#define RPC_MSG_CALL           0        /* RPC request                           */
#define RPC_MSG_REPLY          1        /* RPC answer                            */

#define MSG_ACCEPTED   0        /* RPC request was accepted              */
#define MSG_DENIED     1        /* RPC request was denied                */

#define SUCCESS        0        /* RPC proc_null request was a success   */
#define PROG_UNAVAIL   1        /* RPC prog not on this port             */
#define PROG_MISMATCH  2        /* RPC prog here but wrong version       */

/* structure used for RPC calls */
struct rpc_hdr                          
{       u_long  xid;                    /* xid number                    */
        u_long  type_msg;               /* request or answer             */
        u_long  version_rpc;            /* portmapper/rpcbind version    */
        u_long  prog_id;                /* rpc program id                */
        u_long  prog_ver;               /* rpc program version           */
        u_long  prog_proc;              /* remote procedure call number  */
        u_long  authcred_flavor;        /* credentials field             */
        u_long  authcred_length;
        u_long  authveri_flavor;        /* verification field            */
        u_long  authveri_length;
};

struct rpc_hdr_rcv {
  unsigned long xid;
  unsigned long type_msg;
  unsigned long rp_stat;
  unsigned long auth_flavor;
  unsigned long opaque_length;
  unsigned long accept_stat;
  unsigned long low_version;
  unsigned long high_version;
};

struct rpc_info {
  char **names;
  unsigned long *numbers;
  int num_used;
  int num_alloc;
};

struct rpcscaninfo {
  Port *rpc_current_port;
  unsigned long *rpc_progs;
  unsigned long rpc_number;
  int valid_responses_this_port; /* Number of valid (RPC wise) responses we
                            have received on this particular port */
#define RPC_STATUS_UNTESTED 0
#define RPC_STATUS_UNKNOWN 1   /* Don't know yet */
#define RPC_STATUS_GOOD_PROG 2 /* the prog # specified in rpc_status_info and
                                  the version info is
                          valid for the rpc_current_port */
#define RPC_STATUS_NOT_RPC 4   /* This doesn't even seem to be an RPC port */
  int rpc_status;
  unsigned long rpc_program;
  unsigned long rpc_lowver; /* Lowest version number of program supported */
  unsigned long rpc_highver; /* Highest version supported */
};


int get_rpc_procs(unsigned long **programs, unsigned long *num_programs);
char *nmap_getrpcnamebynum(unsigned long num);
int send_rpc_query(const struct in_addr *target_host, unsigned short portno,
               int ipproto, unsigned long program, int scan_offset, 
               int trynum);
void get_rpc_results(Target *target, struct portinfo *scan,
                 struct scanstats *ss, struct portinfolist *pil, 
                 struct rpcscaninfo *rsi);
void close_rpc_query_sockets();

#endif /* NMAP_RPC_H */








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