diff options
author | Guy Harris <guy@alum.mit.edu> | 2014-07-04 00:24:02 -0700 |
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committer | Guy Harris <guy@alum.mit.edu> | 2014-07-04 07:25:26 +0000 |
commit | 9e6487f24751d1c1a047ee82e158077ac67c9c68 (patch) | |
tree | 3cc4a8524062948f4951914dc9af489e0d7c4572 /capture_wpcap_packet.c | |
parent | c5643a3d257909ed3e8752cd729b9192ae719683 (diff) |
Move utility routines for capturing into a libcaputils static library.
Some of those routines are used only in dumpcap; others are used in
TShark and Wireshark as well.
Change-Id: I9d92483f2fcff57a7d8b6bf6bdf2870505d19fb7
Reviewed-on: https://code.wireshark.org/review/2841
Reviewed-by: Guy Harris <guy@alum.mit.edu>
Diffstat (limited to 'capture_wpcap_packet.c')
-rw-r--r-- | capture_wpcap_packet.c | 331 |
1 files changed, 0 insertions, 331 deletions
diff --git a/capture_wpcap_packet.c b/capture_wpcap_packet.c deleted file mode 100644 index 7ccf03b95c..0000000000 --- a/capture_wpcap_packet.c +++ /dev/null @@ -1,331 +0,0 @@ -/* capture_wpcap_packet.c - * WinPcap-specific interfaces for low-level information (packet.dll). - * We load WinPcap at run - * time, so that we only need one Wireshark binary and one TShark binary - * for Windows, regardless of whether WinPcap is installed or not. - * - * Wireshark - Network traffic analyzer - * By Gerald Combs <gerald@wireshark.org> - * Copyright 2001 Gerald Combs - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version 2 - * of the License, or (at your option) any later version. - * - * 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 for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. - */ - -#include "config.h" - -#if defined HAVE_LIBPCAP && defined _WIN32 - -#include <glib.h> -#include <gmodule.h> - -#include <pcap.h> - -/* XXX - yes, I know, I should move cppmagic.h to a generic location. */ -#include "tools/lemon/cppmagic.h" - -#include <epan/value_string.h> - -#include <winsock2.h> /* Needed here to force a definition of WINVER */ - /* for some (all ?) Microsoft compilers newer than vc6. */ - /* (If windows.h were used instead, there might be */ - /* issues re winsock.h included before winsock2.h ) */ -#include <windowsx.h> -#include <Ntddndis.h> - -#include "capture_wpcap_packet.h" -#include <wsutil/file_util.h> - -/* packet32.h requires sockaddr_storage - * whether sockaddr_storage is defined or not depends on the Platform SDK - * version installed. The only one not defining it is the SDK that comes - * with MSVC 6.0 (WINVER 0x0400). - * - * copied from RFC2553 (and slightly modified because of datatypes) ... - * XXX - defined more than once, move this to a header file */ -#ifndef WINVER -#error WINVER not defined .... -#endif -#if (WINVER <= 0x0400) && defined(_MSC_VER) -typedef unsigned short eth_sa_family_t; - -/* - * Desired design of maximum size and alignment - */ -#define ETH_SS_MAXSIZE 128 /* Implementation specific max size */ -#define ETH_SS_ALIGNSIZE (sizeof (gint64 /*int64_t*/)) - /* Implementation specific desired alignment */ -/* - * Definitions used for sockaddr_storage structure paddings design. - */ -#define ETH_SS_PAD1SIZE (ETH_SS_ALIGNSIZE - sizeof (eth_sa_family_t)) -#define ETH_SS_PAD2SIZE (ETH_SS_MAXSIZE - (sizeof (eth_sa_family_t) + \ - ETH_SS_PAD1SIZE + ETH_SS_ALIGNSIZE)) - -struct sockaddr_storage { - eth_sa_family_t __ss_family; /* address family */ - /* Following fields are implementation specific */ - char __ss_pad1[ETH_SS_PAD1SIZE]; - /* 6 byte pad, this is to make implementation */ - /* specific pad up to alignment field that */ - /* follows explicit in the data structure */ - gint64 /*int64_t*/ __ss_align; /* field to force desired structure */ - /* storage alignment */ - char __ss_pad2[ETH_SS_PAD2SIZE]; - /* 112 byte pad to achieve desired size, */ - /* _SS_MAXSIZE value minus size of ss_family */ - /* __ss_pad1, __ss_align fields is 112 */ -}; -/* ... copied from RFC2553 */ -#endif /* WINVER */ - -#include <Packet32.h> - -gboolean has_wpacket = FALSE; - - -/* This module will use the PacketRequest function in packet.dll (coming with WinPcap) to "directly" access - * the Win32 NDIS network driver(s) and ask for various values (status, statistics, ...). - * - * Unfortunately, the definitions required for this are not available through the usual windows header files, - * but require the Windows "Device Driver Kit" which is not available for free :-( - * - * Fortunately, the definitions needed to access the various NDIS values are available from various OSS projects: - * - WinPcap in Ntddndis.h - * - Ndiswrapper in driver/ndis.h and driver/iw_ndis.h - * - cygwin (MingW?) in usr/include/w32api/ddk/ndis.h and ntddndis.h - * - FreeBSD (netperf) - */ - -/* The MSDN description of the NDIS driver API is available at: -/* MSDN Home > MSDN Library > Win32 and COM Development > Driver Development Kit > Network Devices and Protocols > Reference */ -/* "NDIS Objects" */ -/* http://msdn.microsoft.com/library/default.asp?url=/library/en-us/network/hh/network/21oidovw_d55042e5-0b8a-4439-8ef2-be7331e98464.xml.asp */ - -/* Some more interesting links: - * http://sourceforge.net/projects/ndiswrapper/ - * http://www.osronline.com/lists_archive/windbg/thread521.html - * http://cvs.sourceforge.net/viewcvs.py/mingw/w32api/include/ddk/ndis.h?view=markup - * http://cvs.sourceforge.net/viewcvs.py/mingw/w32api/include/ddk/ntddndis.h?view=markup - */ - - - -/******************************************************************************************************************************/ -/* stuff to load WinPcap's packet.dll and the functions required from it */ - -static PCHAR (*p_PacketGetVersion) (void); -static LPADAPTER (*p_PacketOpenAdapter) (char *adaptername); -static void (*p_PacketCloseAdapter) (LPADAPTER); -static int (*p_PacketRequest) (LPADAPTER, int, void *); - -typedef struct { - const char *name; - gpointer *ptr; - gboolean optional; -} symbol_table_t; - -#define SYM(x, y) { G_STRINGIFY(x) , (gpointer) &CONCAT(p_,x), y } - -void -wpcap_packet_load(void) -{ - - /* These are the symbols I need or want from packet.dll */ - static const symbol_table_t symbols[] = { - SYM(PacketGetVersion, FALSE), - SYM(PacketOpenAdapter, FALSE), - SYM(PacketCloseAdapter, FALSE), - SYM(PacketRequest, FALSE), - { NULL, NULL, FALSE } - }; - - GModule *wh; /* wpcap handle */ - const symbol_table_t *sym; - - wh = ws_module_open("packet.dll", 0); - - if (!wh) { - return; - } - - sym = symbols; - while (sym->name) { - if (!g_module_symbol(wh, sym->name, sym->ptr)) { - if (sym->optional) { - /* - * We don't care if it's missing; we just - * don't use it. - */ - *sym->ptr = NULL; - } else { - /* - * We require this symbol. - */ - return; - } - } - sym++; - } - - has_wpacket = TRUE; -} - - - -/******************************************************************************************************************************/ -/* functions to access the NDIS driver values */ - - -/* get dll version */ -char * -wpcap_packet_get_version(void) -{ - if(!has_wpacket) { - return NULL; - } - return p_PacketGetVersion(); -} - - -/* open the interface */ -void * -wpcap_packet_open(char *if_name) -{ - LPADAPTER adapter; - - g_assert(has_wpacket); - adapter = p_PacketOpenAdapter(if_name); - - return adapter; -} - - -/* close the interface */ -void -wpcap_packet_close(void *adapter) -{ - - g_assert(has_wpacket); - p_PacketCloseAdapter(adapter); -} - - -/* do a packet request call */ -int -wpcap_packet_request(void *adapter, ULONG Oid, int set, char *value, unsigned int *length) -{ - BOOLEAN Status; - ULONG IoCtlBufferLength=(sizeof(PACKET_OID_DATA) + (*length) - 1); - PPACKET_OID_DATA OidData; - - - g_assert(has_wpacket); - - if(p_PacketRequest == NULL) { - g_warning("packet_request not available\n"); - return 0; - } - - /* get a buffer suitable for PacketRequest() */ - OidData=GlobalAllocPtr(GMEM_MOVEABLE | GMEM_ZEROINIT,IoCtlBufferLength); - if (OidData == NULL) { - g_warning("GlobalAllocPtr failed for %u\n", IoCtlBufferLength); - return 0; - } - - OidData->Oid = Oid; - OidData->Length = *length; - memcpy(OidData->Data, value, *length); - - Status = p_PacketRequest(adapter, set, OidData); - - if(Status) { - if(OidData->Length <= *length) { - /* copy value from driver */ - memcpy(value, OidData->Data, OidData->Length); - *length = OidData->Length; - } else { - /* the driver returned a value that is longer than expected (and longer than the given buffer) */ - g_warning("returned oid too long, Oid: 0x%x OidLen:%u MaxLen:%u", Oid, OidData->Length, *length); - Status = FALSE; - } - } - - GlobalFreePtr (OidData); - - if(Status) { - return 1; - } else { - return 0; - } -} - - -/* get an UINT value using the packet request call */ -int -wpcap_packet_request_uint(void *adapter, ULONG Oid, UINT *value) -{ - BOOLEAN Status; - int length = sizeof(UINT); - - - Status = wpcap_packet_request(adapter, Oid, FALSE /* !set */, (char *) value, &length); - if(Status && length == sizeof(UINT)) { - return 1; - } else { - return 0; - } -} - - -/* get an ULONG value using the NDIS packet request call */ -int -wpcap_packet_request_ulong(void *adapter, ULONG Oid, ULONG *value) -{ - BOOLEAN Status; - int length = sizeof(ULONG); - - - Status = wpcap_packet_request(adapter, Oid, FALSE /* !set */, (char *) value, &length); - if(Status && length == sizeof(ULONG)) { - return 1; - } else { - return 0; - } -} - - -#else /* HAVE_LIBPCAP && _WIN32 */ - -void -wpcap_packet_load(void) -{ - return; -} - -#endif /* HAVE_LIBPCAP */ - -/* - * Editor modelines - http://www.wireshark.org/tools/modelines.html - * - * Local variables: - * c-basic-offset: 4 - * tab-width: 8 - * indent-tabs-mode: nil - * End: - * - * ex: set shiftwidth=4 tabstop=8 expandtab: - * :indentSize=4:tabSize=8:noTabs=true: - */ |