/* 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 Ethereal binary and one Tethereal binary
+ * time, so that we only need one Wireshark binary and one TShark binary
* for Windows, regardless of whether WinPcap is installed or not.
*
* $Id$
*
- * Ethereal - Network traffic analyzer
- * By Gerald Combs <gerald@ethereal.com>
+ * 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
#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 <Packet32.h>
-#include <windows.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"
+/* 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;
/******************************************************************************************************************************/
/* 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 *);
/* 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, TRUE),
+ SYM(PacketRequest, FALSE),
{ NULL, NULL, FALSE }
};
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 */
-LPADAPTER
+void *
wpcap_packet_open(char *if_name)
{
- LPADAPTER adapter;
+ LPADAPTER adapter;
+ g_assert(has_wpacket);
adapter = p_PacketOpenAdapter(if_name);
return adapter;
/* close the interface */
void
-wpcap_packet_close(LPADAPTER adapter)
+wpcap_packet_close(void *adapter)
{
+ g_assert(has_wpacket);
p_PacketCloseAdapter(adapter);
}
/* do a packet request call */
int
-wpcap_packet_request(LPADAPTER a, ULONG Oid, int set, char *value, unsigned int *length)
+wpcap_packet_request(void *adapter, ULONG Oid, int set, char *value, unsigned int *length)
{
BOOLEAN Status;
ULONG IoCtlBufferLength=(sizeof(PACKET_OID_DATA) + (*length) - 1);
return 0;
}
+ /* get a buffer suitable for PacketRequest() */
OidData=GlobalAllocPtr(GMEM_MOVEABLE | GMEM_ZEROINIT,IoCtlBufferLength);
if (OidData == NULL) {
- g_warning("packet_link_status failed\n");
+ g_warning("GlobalAllocPtr failed for %u\n", IoCtlBufferLength);
return 0;
}
OidData->Oid = Oid;
OidData->Length = *length;
+ memcpy(OidData->Data, value, *length);
- Status = p_PacketRequest(a, set, OidData);
+ Status = p_PacketRequest(adapter, set, OidData);
if(Status) {
- g_assert(OidData->Length <= *length);
- memcpy(value, OidData->Data, OidData->Length);
- *length = OidData->Length;
+ 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);
/* get an UINT value using the packet request call */
int
-wpcap_packet_request_uint(LPADAPTER a, ULONG Oid, UINT *value)
+wpcap_packet_request_uint(void *adapter, ULONG Oid, UINT *value)
{
BOOLEAN Status;
int length = sizeof(UINT);
- Status = wpcap_packet_request(a, Oid, FALSE /* !set */, (char *) value, &length);
- if(Status) {
- g_assert(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(LPADAPTER a, ULONG Oid, ULONG *value)
+wpcap_packet_request_ulong(void *adapter, ULONG Oid, ULONG *value)
{
BOOLEAN Status;
int length = sizeof(ULONG);
- Status = wpcap_packet_request(a, Oid, FALSE /* !set */, (char *) value, &length);
- if(Status) {
- g_assert(length == sizeof(ULONG));
+ Status = wpcap_packet_request(adapter, Oid, FALSE /* !set */, (char *) value, &length);
+ if(Status && length == sizeof(ULONG)) {
return 1;
} else {
return 0;
}
#endif /* HAVE_LIBPCAP */
+
+/*
+ * Editor modelines - http://www.wireshark.org/tools/modelines.html
+ *
+ * Local variables:
+ * c-basic-offset: 4
+ * tab-width: 4
+ * indent-tabs-mode: t
+ * End:
+ *
+ * ex: set shiftwidth=4 tabstop=4 noexpandtab
+ * :indentSize=4:tabSize=4:noTabs=false:
+ */
git.samba.org / obnox / wireshark / wip.git / blobdiff