mirror of
https://github.com/nmap/nmap.git
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263 lines
10 KiB
C++
263 lines
10 KiB
C++
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/***************************************************************************
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* winfix.cc -- A few trivial windows-compatabilty-related functions that *
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* are specific to Nmap. Most of this has been moved into nbase so it can *
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* be shared. *
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* *
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***********************IMPORTANT NMAP LICENSE TERMS************************
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* *
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* The Nmap Security Scanner is (C) 1996-2009 Insecure.Com LLC. Nmap is *
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* also a registered trademark of Insecure.Com LLC. This program is free *
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* software; you may redistribute and/or modify it under the terms of the *
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* GNU General Public License as published by the Free Software *
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* Foundation; Version 2 with the clarifications and exceptions described *
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* below. This guarantees your right to use, modify, and redistribute *
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* this software under certain conditions. If you wish to embed Nmap *
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* technology into proprietary software, we sell alternative licenses *
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* (contact sales@insecure.com). Dozens of software vendors already *
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* license Nmap technology such as host discovery, port scanning, OS *
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* detection, and version detection. *
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* *
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* Note that the GPL places important restrictions on "derived works", yet *
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* it does not provide a detailed definition of that term. To avoid *
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* misunderstandings, we consider an application to constitute a *
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* "derivative work" for the purpose of this license if it does any of the *
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* following: *
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* o Integrates source code from Nmap *
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* o Reads or includes Nmap copyrighted data files, such as *
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* nmap-os-db or nmap-service-probes. *
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* o Executes Nmap and parses the results (as opposed to typical shell or *
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* execution-menu apps, which simply display raw Nmap output and so are *
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* not derivative works.) *
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* o Integrates/includes/aggregates Nmap into a proprietary executable *
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* installer, such as those produced by InstallShield. *
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* o Links to a library or executes a program that does any of the above *
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* *
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* The term "Nmap" should be taken to also include any portions or derived *
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* works of Nmap. This list is not exclusive, but is meant to clarify our *
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* interpretation of derived works with some common examples. Our *
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* interpretation applies only to Nmap--we don't speak for other people's *
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* GPL works. *
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* *
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* If you have any questions about the GPL licensing restrictions on using *
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* Nmap in non-GPL works, we would be happy to help. As mentioned above, *
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* we also offer alternative license to integrate Nmap into proprietary *
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* applications and appliances. These contracts have been sold to dozens *
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* of software vendors, and generally include a perpetual license as well *
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* as providing for priority support and updates as well as helping to *
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* fund the continued development of Nmap technology. Please email *
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* sales@insecure.com for further information. *
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* *
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* As a special exception to the GPL terms, Insecure.Com LLC grants *
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* permission to link the code of this program with any version of the *
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* OpenSSL library which is distributed under a license identical to that *
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* listed in the included COPYING.OpenSSL file, and distribute linked *
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* combinations including the two. You must obey the GNU GPL in all *
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* respects for all of the code used other than OpenSSL. If you modify *
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* this file, you may extend this exception to your version of the file, *
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* but you are not obligated to do so. *
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* *
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* If you received these files with a written license agreement or *
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* contract stating terms other than the terms above, then that *
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* alternative license agreement takes precedence over these comments. *
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* *
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* Source is provided to this software because we believe users have a *
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* right to know exactly what a program is going to do before they run it. *
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* This also allows you to audit the software for security holes (none *
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* have been found so far). *
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* *
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* Source code also allows you to port Nmap to new platforms, fix bugs, *
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* and add new features. You are highly encouraged to send your changes *
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* to nmap-dev@insecure.org for possible incorporation into the main *
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* distribution. By sending these changes to Fyodor or one of the *
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* Insecure.Org development mailing lists, it is assumed that you are *
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* offering the Nmap Project (Insecure.Com LLC) the unlimited, *
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* non-exclusive right to reuse, modify, and relicense the code. Nmap *
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* will always be available Open Source, but this is important because the *
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* inability to relicense code has caused devastating problems for other *
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* Free Software projects (such as KDE and NASM). We also occasionally *
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* relicense the code to third parties as discussed above. If you wish to *
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* specify special license conditions of your contributions, just say so *
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* when you send them. *
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* *
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* This program is distributed in the hope that it will be useful, but *
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* WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
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* General Public License v2.0 for more details at *
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* http://www.gnu.org/licenses/gpl-2.0.html , or in the COPYING file *
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* included with Nmap. *
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* *
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***************************************************************************/
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/* $Id: */
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#include <winclude.h>
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#include <sys/timeb.h>
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#include <shellapi.h>
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#include "..\nmap.h"
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#include "..\tcpip.h"
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#include "winfix.h"
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#include "..\NmapOps.h"
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#include "..\nmap_error.h"
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#ifdef _MSC_VER
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# include <delayimp.h>
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#endif
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#ifdef _MSC_VER
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#define DLI_ERROR VcppException(ERROR_SEVERITY_ERROR, ERROR_MOD_NOT_FOUND)
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#endif
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extern NmapOps o;
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/* internal functions */
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static void win_cleanup(void);
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static char pcaplist[4096];
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/* The code that has no preconditions to being called, so it can be
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executed before even Nmap options parsing (so o.debugging and the
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like don't need to be used. Its main function is to do
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WSAStartup() as some of the option parsing code does DNS
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resolution */
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void win_pre_init() {
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WORD werd;
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WSADATA data;
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werd = MAKEWORD( 2, 2 );
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if( (WSAStartup(werd, &data)) !=0 )
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fatal("failed to start winsock.\n");
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}
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/* Check if the NPF service is running on Windows, and try to start it if it's
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not. Return true if it was running or we were able to start it, false
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otherwise. */
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static bool start_npf() {
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SC_HANDLE scm, npf;
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SERVICE_STATUS service;
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bool npf_running;
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int ret;
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scm = NULL;
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npf = NULL;
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scm = OpenSCManager(NULL, NULL, 0);
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if (scm == NULL) {
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error("Error in OpenSCManager");
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goto quit_error;
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}
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npf = OpenService(scm, "npf", SC_MANAGER_CONNECT | SERVICE_QUERY_STATUS);
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if (npf == NULL) {
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error("Error in OpenService");
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goto quit_error;
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}
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if (!QueryServiceStatus(npf, &service)) {
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goto quit_error;
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error("Error in QueryServiceStatus");
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}
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npf_running = (service.dwCurrentState & SERVICE_RUNNING) != 0;
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CloseServiceHandle(scm);
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CloseServiceHandle(npf);
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if (npf_running) {
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if (o.debugging > 1)
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log_write(LOG_PLAIN, "NPF service is already running.\n");
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return true;
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}
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/* NPF is not running. Try to start it. */
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if (o.debugging > 1)
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log_write(LOG_PLAIN, "NPF service is not running.\n");
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ret = (int) ShellExecute(0, "runas", "net.exe", "start npf", 0, SW_HIDE);
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if (ret <= 32) {
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error("Unable to start npf service: error code %d.", ret);
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return false;
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}
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return true;
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quit_error:
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if (scm != NULL)
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CloseHandle(scm);
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if (npf != NULL)
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CloseHandle(npf);
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return false;
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}
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/* Requires that win_pre_init() has already been called, also that
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options processing has been done so that o.debugging is
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available */
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void win_init()
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{
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// variables
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DWORD cb = 0;
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DWORD nRes;
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OSVERSIONINFOEX ver;
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PMIB_IPADDRTABLE pIp = 0;
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int i;
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int numipsleft;
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ver.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX);
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if(!GetVersionEx((LPOSVERSIONINFO)&ver))
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{
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ver.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
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if(!GetVersionEx((LPOSVERSIONINFO)&ver))
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fatal("GetVersionEx failed\n");
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ver.wServicePackMajor = 0;
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ver.wServicePackMinor = 0;
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}
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// Try to initialize winpcap
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#ifdef _MSC_VER
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__try
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#endif
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{
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ULONG len = sizeof(pcaplist);
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o.have_pcap = true;
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if(o.debugging > 2) printf("***WinIP*** trying to initialize WinPcap\n");
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PacketGetAdapterNames(pcaplist, &len);
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#ifdef _MSC_VER
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if(FAILED(__HrLoadAllImportsForDll("wpcap.dll")))
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{
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error("WARNING: your winpcap is too old to use. Nmap may not function.\n");
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o.have_pcap = false;
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}
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#endif
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if(o.debugging)
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printf("Winpcap present, dynamic linked to: %s\n", pcap_lib_version());
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o.have_pcap = o.have_pcap && start_npf();
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}
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#ifdef _MSC_VER
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__except (1) {
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error("WARNING: Could not import all necessary WinPcap functions. You may need to upgrade to version 3.1 or higher from http://www.winpcap.org. Resorting to connect() mode -- Nmap may not function completely");
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o.have_pcap=false;
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}
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#endif
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if (!o.have_pcap)
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o.isr00t = 0;
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atexit(win_cleanup);
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}
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static void win_cleanup(void)
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{
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WSACleanup();
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}
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int fork()
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{
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fatal("no fork for you!\n");
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return 0;
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}
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