forked from osmocom/wireshark
We aren't using them now; stick to libpcap APIs (including Windows-only libpcap APIs). Change-Id: I812eaa31ba1e6e611418853105d3e00c9130a420 Reviewed-on: https://code.wireshark.org/review/37852 Petri-Dish: Guy Harris <gharris@sonic.net> Tested-by: Petri Dish Buildbot Reviewed-by: Guy Harris <gharris@sonic.net>osmith/wip
Guy Harris
3 years ago
parent
4a4c8bdfea
commit
608835bf56
@ -1,273 +0,0 @@
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/* capture_wpcap_packet.c
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* WinPcap/Npcap-specific interfaces for low-level information (packet.dll).
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* We load WinPcap/Npcap at run time, so that we only need one Wireshark
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* binary and one TShark binary for Windows, regardless of whether
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* WinPcap/Npcap is installed or not.
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 2001 Gerald Combs
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#include "config.h"
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#if defined HAVE_LIBPCAP && defined _WIN32
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#include <glib.h>
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#include <gmodule.h>
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#include "wspcap.h"
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/* XXX - yes, I know, I should move cppmagic.h to a generic location. */
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#include "tools/lemon/cppmagic.h"
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#include <epan/value_string.h>
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#include <windowsx.h>
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#include <Ntddndis.h>
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#include "caputils/capture_wpcap_packet.h"
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#include <wsutil/file_util.h>
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#include <Packet32.h>
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gboolean has_wpacket = FALSE;
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/* This module will use the PacketRequest function in packet.dll (coming
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* with WinPcap and Npcap) to "directly" access the Win32 NDIS network
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* driver(s) and ask for various values (status, statistics, ...).
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*
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* Unfortunately, the definitions required for this are not available through the usual windows header files,
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* but require the Windows "Device Driver Kit" which is not available for free :-(
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*
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*
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*
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* Fortunately, the definitions needed to access the various NDIS values are available from various OSS projects:
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* - WinPcap in Ntddndis.h
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* - Ndiswrapper in driver/ndis.h and driver/iw_ndis.h
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* - cygwin (MingW?) in usr/include/w32api/ddk/ndis.h and ntddndis.h
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* - FreeBSD (netperf)
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*/
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/* The description of the NDIS driver API is available at:
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* https://docs.microsoft.com/en-us/windows-hardware/drivers/network/ndis-core-functionality2
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*/
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/* Some more interesting links:
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* https://sourceforge.net/projects/ndiswrapper/
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* http://www.osronline.com/lists_archive/windbg/thread521.html
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* http://cvs.sourceforge.net/viewcvs.py/mingw/w32api/include/ddk/ndis.h?view=markup
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* http://cvs.sourceforge.net/viewcvs.py/mingw/w32api/include/ddk/ntddndis.h?view=markup
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*/
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/******************************************************************************************************************************/
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/* stuff to load WinPcap/Npcap's packet.dll and the functions required from it */
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static PCHAR (*p_PacketGetVersion) (void);
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static LPADAPTER (*p_PacketOpenAdapter) (char *adaptername);
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static void (*p_PacketCloseAdapter) (LPADAPTER);
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static int (*p_PacketRequest) (LPADAPTER, int, void *);
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typedef struct {
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const char *name;
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gpointer *ptr;
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gboolean optional;
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} symbol_table_t;
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#define SYM(x, y) { G_STRINGIFY(x) , (gpointer) &CONCAT(p_,x), y }
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void
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wpcap_packet_load(void)
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{
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/* These are the symbols I need or want from packet.dll */
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static const symbol_table_t symbols[] = {
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SYM(PacketGetVersion, FALSE),
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SYM(PacketOpenAdapter, FALSE),
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SYM(PacketCloseAdapter, FALSE),
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SYM(PacketRequest, FALSE),
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{ NULL, NULL, FALSE }
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};
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GModule *wh; /* wpcap handle */
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const symbol_table_t *sym;
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wh = ws_module_open("packet.dll", 0);
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if (!wh) {
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return;
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}
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sym = symbols;
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while (sym->name) {
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if (!g_module_symbol(wh, sym->name, sym->ptr)) {
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if (sym->optional) {
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/*
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* We don't care if it's missing; we just
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* don't use it.
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*/
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*sym->ptr = NULL;
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} else {
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/*
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* We require this symbol.
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*/
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return;
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}
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}
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sym++;
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}
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has_wpacket = TRUE;
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}
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/******************************************************************************************************************************/
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/* functions to access the NDIS driver values */
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/* get dll version */
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char *
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wpcap_packet_get_version(void)
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{
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if(!has_wpacket) {
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return NULL;
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}
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return p_PacketGetVersion();
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}
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/* open the interface */
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void *
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wpcap_packet_open(char *if_name)
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{
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LPADAPTER adapter;
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g_assert(has_wpacket);
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adapter = p_PacketOpenAdapter(if_name);
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return adapter;
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}
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/* close the interface */
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void
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wpcap_packet_close(void *adapter)
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{
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g_assert(has_wpacket);
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p_PacketCloseAdapter(adapter);
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}
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/* do a packet request call */
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int
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wpcap_packet_request(void *adapter, ULONG Oid, int set, char *value, unsigned int *length)
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{
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BOOLEAN Status;
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ULONG IoCtlBufferLength=(sizeof(PACKET_OID_DATA) + (*length) - 1);
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PPACKET_OID_DATA OidData;
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g_assert(has_wpacket);
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if(p_PacketRequest == NULL) {
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g_warning("packet_request not available\n");
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return 0;
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}
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/* get a buffer suitable for PacketRequest() */
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OidData=GlobalAllocPtr(GMEM_MOVEABLE | GMEM_ZEROINIT,IoCtlBufferLength);
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if (OidData == NULL) {
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g_warning("GlobalAllocPtr failed for %u\n", IoCtlBufferLength);
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return 0;
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}
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OidData->Oid = Oid;
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OidData->Length = *length;
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memcpy(OidData->Data, value, *length);
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Status = p_PacketRequest(adapter, set, OidData);
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if(Status) {
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if(OidData->Length <= *length) {
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/* copy value from driver */
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memcpy(value, OidData->Data, OidData->Length);
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*length = OidData->Length;
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} else {
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/* the driver returned a value that is longer than expected (and longer than the given buffer) */
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g_warning("returned oid too long, Oid: 0x%x OidLen:%u MaxLen:%u", Oid, OidData->Length, *length);
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Status = FALSE;
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}
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}
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GlobalFreePtr (OidData);
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if(Status) {
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return 1;
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} else {
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return 0;
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}
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}
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/* get an UINT value using the packet request call */
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int
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wpcap_packet_request_uint(void *adapter, ULONG Oid, UINT *value)
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{
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BOOLEAN Status;
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int length = sizeof(UINT);
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Status = wpcap_packet_request(adapter, Oid, FALSE /* !set */, (char *) value, &length);
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if(Status && length == sizeof(UINT)) {
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return 1;
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} else {
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return 0;
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}
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}
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/* get an ULONG value using the NDIS packet request call */
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int
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wpcap_packet_request_ulong(void *adapter, ULONG Oid, ULONG *value)
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{
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BOOLEAN Status;
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int length = sizeof(ULONG);
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Status = wpcap_packet_request(adapter, Oid, FALSE /* !set */, (char *) value, &length);
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if(Status && length == sizeof(ULONG)) {
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return 1;
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} else {
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return 0;
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}
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}
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#else /* HAVE_LIBPCAP && _WIN32 */
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void
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wpcap_packet_load(void)
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{
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return;
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}
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#endif /* HAVE_LIBPCAP */
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/*
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* Editor modelines - https://www.wireshark.org/tools/modelines.html
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*
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* Local variables:
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* c-basic-offset: 4
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* tab-width: 8
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* indent-tabs-mode: nil
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* End:
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*
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* ex: set shiftwidth=4 tabstop=8 expandtab:
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* :indentSize=4:tabSize=8:noTabs=true:
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*/
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@ -1,39 +0,0 @@
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/* capture_wpcap_packet.h
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 2001 Gerald Combs
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*
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#ifndef CAPTURE_WPCAP_PACKET_H
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#define CAPTURE_WPCAP_PACKET_H
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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extern void wpcap_packet_load(void);
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/* get the packet.dll version info */
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extern char *wpcap_packet_get_version(void);
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/* open the interface */
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extern void * wpcap_packet_open(char *if_name);
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/* close the interface */
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extern void wpcap_packet_close(void * adapter);
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extern int wpcap_packet_request(void *a, ULONG Oid, int set, char *value, unsigned int *length);
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extern int wpcap_packet_request_uint(void *a, ULONG Oid, UINT *value);
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extern int wpcap_packet_request_ulong(void *a, ULONG Oid, ULONG *value);
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* CAPTURE_WPCAP_PACKET_H */
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