423 lines
11 KiB
C
423 lines
11 KiB
C
/*
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* Copyright 2011, 2014 André Hentschel
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* Copyright 2021 Hans Leidekker for CodeWeavers
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but 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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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#if 0
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#pragma makedep unix
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#endif
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#include "config.h"
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#ifdef HAVE_PCAP_PCAP_H
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#include <pcap/pcap.h>
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#include <stdarg.h>
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#include <stdlib.h>
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#include <limits.h>
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#include "ntstatus.h"
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#define WIN32_NO_STATUS
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#include "windef.h"
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#include "winbase.h"
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#include "winternl.h"
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#include "wine/debug.h"
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#include "unixlib.h"
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WINE_DEFAULT_DEBUG_CHANNEL(wpcap);
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WINE_DECLARE_DEBUG_CHANNEL(winediag);
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static const struct pcap_callbacks *callbacks;
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static int CDECL wrap_activate( struct pcap *pcap )
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{
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return pcap_activate( pcap->handle );
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}
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static void CDECL wrap_breakloop( struct pcap *pcap )
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{
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return pcap_breakloop( pcap->handle );
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}
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static int CDECL wrap_can_set_rfmon( struct pcap *pcap )
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{
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return pcap_can_set_rfmon( pcap->handle );
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}
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static void CDECL wrap_close( struct pcap *pcap )
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{
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pcap_close( pcap->handle );
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free( pcap );
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}
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static int CDECL wrap_compile( struct pcap *pcap, void *program, const char *buf, int optimize, unsigned int mask )
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{
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return pcap_compile( pcap->handle, program, buf, optimize, mask );
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}
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static struct pcap * CDECL wrap_create( const char *src, char *errbuf )
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{
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struct pcap *ret = malloc( sizeof(*ret) );
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if (ret && !(ret->handle = pcap_create( src, errbuf )))
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{
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free( ret );
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return NULL;
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}
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return ret;
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}
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static int CDECL wrap_datalink( struct pcap *pcap )
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{
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return pcap_datalink( pcap->handle );
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}
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static int CDECL wrap_datalink_name_to_val( const char *name )
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{
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return pcap_datalink_name_to_val( name );
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}
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static const char * CDECL wrap_datalink_val_to_description( int link )
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{
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return pcap_datalink_val_to_description( link );
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}
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static const char * CDECL wrap_datalink_val_to_name( int link )
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{
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return pcap_datalink_val_to_name( link );
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}
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static void wrap_pcap_handler( unsigned char *user, const struct pcap_pkthdr *hdr, const unsigned char *packet )
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{
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struct handler_callback *cb = (struct handler_callback *)user;
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struct pcap_pkthdr_win32 hdr_win32;
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if (hdr->ts.tv_sec > INT_MAX || hdr->ts.tv_usec > INT_MAX) WARN( "truncating timeval values(s)\n" );
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hdr_win32.ts.tv_sec = hdr->ts.tv_sec;
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hdr_win32.ts.tv_usec = hdr->ts.tv_usec;
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hdr_win32.caplen = hdr->caplen;
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hdr_win32.len = hdr->len;
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callbacks->handler( cb, &hdr_win32, packet );
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}
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static int CDECL wrap_dispatch( struct pcap *pcap, int count,
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void (CALLBACK *callback)(unsigned char *, const struct pcap_pkthdr_win32 *,
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const unsigned char *), unsigned char *user )
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{
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if (callback)
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{
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struct handler_callback cb;
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cb.callback = callback;
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cb.user = user;
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return pcap_dispatch( pcap->handle, count, wrap_pcap_handler, (unsigned char *)&cb );
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}
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return pcap_dispatch( pcap->handle, count, NULL, user );
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}
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static void CDECL wrap_dump( unsigned char *user, const struct pcap_pkthdr_win32 *hdr, const unsigned char *packet )
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{
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struct pcap_pkthdr hdr_unix;
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hdr_unix.ts.tv_sec = hdr->ts.tv_sec;
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hdr_unix.ts.tv_usec = hdr->ts.tv_usec;
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hdr_unix.caplen = hdr->caplen;
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hdr_unix.len = hdr->len;
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return pcap_dump( user, &hdr_unix, packet );
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}
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static void * CDECL wrap_dump_open( struct pcap *pcap, const char *name )
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{
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return pcap_dump_open( pcap->handle, name );
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}
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static int CDECL wrap_findalldevs( struct pcap_interface **devs, char *errbuf )
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{
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int ret;
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ret = pcap_findalldevs( (pcap_if_t **)devs, errbuf );
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if (devs && !*devs)
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ERR_(winediag)( "Failed to access raw network (pcap), this requires special permissions.\n" );
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return ret;
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}
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static void CDECL wrap_free_datalinks( int *links )
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{
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pcap_free_datalinks( links );
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}
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static void CDECL wrap_free_tstamp_types( int *types )
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{
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pcap_free_tstamp_types( types );
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}
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static void CDECL wrap_freealldevs( struct pcap_interface *devs )
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{
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pcap_freealldevs( (pcap_if_t *)devs );
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}
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static void CDECL wrap_freecode( void *program )
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{
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return pcap_freecode( program );
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}
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static int CDECL wrap_get_tstamp_precision( struct pcap *pcap )
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{
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return pcap_get_tstamp_precision( pcap->handle );
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}
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static char * CDECL wrap_geterr( struct pcap *pcap )
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{
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return pcap_geterr( pcap->handle );
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}
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static int CDECL wrap_getnonblock( struct pcap *pcap, char *errbuf )
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{
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return pcap_getnonblock( pcap->handle, errbuf );
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}
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static const char * CDECL wrap_lib_version( void )
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{
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return pcap_lib_version();
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}
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static int CDECL wrap_list_datalinks( struct pcap *pcap, int **buf )
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{
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return pcap_list_datalinks( pcap->handle, buf );
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}
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static int CDECL wrap_list_tstamp_types( struct pcap *pcap, int **types )
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{
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return pcap_list_tstamp_types( pcap->handle, types );
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}
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static int CDECL wrap_lookupnet( const char *device, unsigned int *net, unsigned int *mask, char *errbuf )
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{
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return pcap_lookupnet( device, net, mask, errbuf );
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}
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static int CDECL wrap_loop( struct pcap *pcap, int count,
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void (CALLBACK *callback)(unsigned char *, const struct pcap_pkthdr_win32 *,
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const unsigned char *), unsigned char *user )
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{
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if (callback)
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{
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struct handler_callback cb;
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cb.callback = callback;
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cb.user = user;
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return pcap_loop( pcap->handle, count, wrap_pcap_handler, (unsigned char *)&cb );
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}
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return pcap_loop( pcap->handle, count, NULL, user );
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}
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static int CDECL wrap_major_version( struct pcap *pcap )
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{
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return pcap_major_version( pcap->handle );
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}
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static int CDECL wrap_minor_version( struct pcap *pcap )
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{
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return pcap_minor_version( pcap->handle );
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}
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static const unsigned char * CDECL wrap_next( struct pcap *pcap, struct pcap_pkthdr_win32 *hdr )
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{
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struct pcap_pkthdr hdr_unix;
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const unsigned char *ret;
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if ((ret = pcap_next( pcap->handle, &hdr_unix )))
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{
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if (hdr_unix.ts.tv_sec > INT_MAX || hdr_unix.ts.tv_usec > INT_MAX) WARN( "truncating timeval values(s)\n" );
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hdr->ts.tv_sec = hdr_unix.ts.tv_sec;
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hdr->ts.tv_usec = hdr_unix.ts.tv_usec;
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hdr->caplen = hdr_unix.caplen;
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hdr->len = hdr_unix.len;
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}
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return ret;
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}
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static int CDECL wrap_next_ex( struct pcap *pcap, struct pcap_pkthdr_win32 **hdr, const unsigned char **data )
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{
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struct pcap_pkthdr *hdr_unix;
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int ret;
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if ((ret = pcap_next_ex( pcap->handle, &hdr_unix, data )) == 1)
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{
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if (hdr_unix->ts.tv_sec > INT_MAX || hdr_unix->ts.tv_usec > INT_MAX) WARN( "truncating timeval values(s)\n" );
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pcap->hdr.ts.tv_sec = hdr_unix->ts.tv_sec;
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pcap->hdr.ts.tv_usec = hdr_unix->ts.tv_usec;
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pcap->hdr.caplen = hdr_unix->caplen;
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pcap->hdr.len = hdr_unix->len;
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*hdr = &pcap->hdr;
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}
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return ret;
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}
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static struct pcap * CDECL wrap_open_live( const char *source, int snaplen, int promisc, int to_ms, char *errbuf )
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{
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struct pcap *ret = malloc( sizeof(*ret) );
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if (ret && !(ret->handle = pcap_open_live( source, snaplen, promisc, to_ms, errbuf )))
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{
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free( ret );
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return NULL;
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}
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return ret;
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}
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static int CDECL wrap_sendpacket( struct pcap *pcap, const unsigned char *buf, int size )
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{
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return pcap_sendpacket( pcap->handle, buf, size );
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}
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static int CDECL wrap_set_buffer_size( struct pcap *pcap, int size )
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{
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return pcap_set_buffer_size( pcap->handle, size );
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}
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static int CDECL wrap_set_datalink( struct pcap *pcap, int link )
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{
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return pcap_set_datalink( pcap->handle, link );
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}
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static int CDECL wrap_set_promisc( struct pcap *pcap, int enable )
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{
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return pcap_set_promisc( pcap->handle, enable );
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}
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static int CDECL wrap_set_rfmon( struct pcap *pcap, int enable )
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{
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return pcap_set_rfmon( pcap->handle, enable );
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}
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static int CDECL wrap_set_snaplen( struct pcap *pcap, int len )
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{
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return pcap_set_snaplen( pcap->handle, len );
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}
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static int CDECL wrap_set_timeout( struct pcap *pcap, int timeout )
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{
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return pcap_set_timeout( pcap->handle, timeout );
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}
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static int CDECL wrap_set_tstamp_precision( struct pcap *pcap, int precision )
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{
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return pcap_set_tstamp_precision( pcap->handle, precision );
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}
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static int CDECL wrap_set_tstamp_type( struct pcap *pcap, int type )
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{
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return pcap_set_tstamp_type( pcap->handle, type );
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}
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static int CDECL wrap_setfilter( struct pcap *pcap, void *program )
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{
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return pcap_setfilter( pcap->handle, program );
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}
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static int CDECL wrap_setnonblock( struct pcap *pcap, int nonblock, char *errbuf )
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{
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return pcap_setnonblock( pcap->handle, nonblock, errbuf );
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}
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static int CDECL wrap_snapshot( struct pcap *pcap )
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{
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return pcap_snapshot( pcap->handle );
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}
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static int CDECL wrap_stats( struct pcap *pcap, void *stats )
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{
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return pcap_stats( pcap->handle, stats );
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}
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static const char * CDECL wrap_statustostr( int status )
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{
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return pcap_statustostr( status );
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}
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static int CDECL wrap_tstamp_type_name_to_val( const char *name )
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{
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return pcap_tstamp_type_name_to_val( name );
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}
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static const char * CDECL wrap_tstamp_type_val_to_description( int val )
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{
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return pcap_tstamp_type_val_to_description( val );
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}
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static const char * CDECL wrap_tstamp_type_val_to_name( int val )
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{
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return pcap_tstamp_type_val_to_name( val );
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}
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static const struct pcap_funcs funcs =
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{
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wrap_activate,
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wrap_breakloop,
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wrap_can_set_rfmon,
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wrap_close,
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wrap_compile,
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wrap_create,
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wrap_datalink,
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wrap_datalink_name_to_val,
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wrap_datalink_val_to_description,
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wrap_datalink_val_to_name,
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wrap_dispatch,
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wrap_dump,
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wrap_dump_open,
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wrap_findalldevs,
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wrap_free_datalinks,
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wrap_free_tstamp_types,
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wrap_freealldevs,
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wrap_freecode,
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wrap_get_tstamp_precision,
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wrap_geterr,
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wrap_getnonblock,
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wrap_lib_version,
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wrap_list_datalinks,
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wrap_list_tstamp_types,
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wrap_lookupnet,
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wrap_loop,
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wrap_major_version,
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wrap_minor_version,
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wrap_next,
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wrap_next_ex,
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wrap_open_live,
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wrap_sendpacket,
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wrap_set_buffer_size,
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wrap_set_datalink,
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wrap_set_promisc,
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wrap_set_rfmon,
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wrap_set_snaplen,
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wrap_set_timeout,
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wrap_set_tstamp_precision,
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wrap_set_tstamp_type,
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wrap_setfilter,
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wrap_setnonblock,
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wrap_snapshot,
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wrap_stats,
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wrap_statustostr,
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wrap_tstamp_type_name_to_val,
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wrap_tstamp_type_val_to_description,
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wrap_tstamp_type_val_to_name,
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};
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NTSTATUS CDECL __wine_init_unix_lib( HMODULE module, DWORD reason, const void *ptr_in, void *ptr_out )
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{
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if (reason != DLL_PROCESS_ATTACH) return STATUS_SUCCESS;
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callbacks = ptr_in;
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*(const struct pcap_funcs **)ptr_out = &funcs;
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return STATUS_SUCCESS;
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}
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#endif /* HAVE_PCAP_PCAP_H */
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