vbox-libdlpi.cpp revision 8b64716512fa358e47ae216141280a27604a3e78
/** $Id$ */
/** @file
* Dynamically load libdpli & symbols on Solaris hosts, Internal header.
*/
/*
* Copyright (C) 2008 Sun Microsystems, Inc.
*
* This file is part of VirtualBox Open Source Edition (OSE), as
* available from http://www.virtualbox.org. This file is free software;
* you can redistribute it and/or modify it under the terms of the GNU
* General Public License (GPL) as published by the Free Software
* Foundation, in version 2 as it comes in the "COPYING" file of the
* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
* Clara, CA 95054 USA or visit http://www.sun.com if you need
* additional information or have any questions.
*/
#include "vbox-libdlpi.h"
#include <iprt/err.h>
#include <iprt/ldr.h>
/**
* Global pointer to the libdlpi module. This should only be set once all needed libraries
* and symbols have been successfully loaded.
*/
static RTLDRMOD g_hLibDlpi = NULL;
/**
* Whether we have tried to load libdlpi yet. This flag should only be set
* to "true" after we have either loaded both libraries and all symbols which we need,
* or failed to load something and unloaded.
*/
static bool g_fCheckedForLibDlpi = false;
/** All the symbols we need from libdlpi.
* @{
*/
int (*g_pfnLibDlpiOpen)(const char *, dlpi_handle_t *, uint_t);
void (*g_pfnLibDlpiClose)(dlpi_handle_t);
int (*g_pfnLibDlpiInfo)(dlpi_handle_t, dlpi_info_t *, uint_t);
int (*g_pfnLibDlpiBind)(dlpi_handle_t, uint_t, uint_t *);
int (*g_pfnLibDlpiSetPhysAddr)(dlpi_handle_t, uint_t, const void *, size_t);
int (*g_pfnLibDlpiPromiscon)(dlpi_handle_t, uint_t);
int (*g_pfnLibDlpiRecv)(dlpi_handle_t, void *, size_t *, void *, size_t *, int, dlpi_recvinfo_t *);
int (*g_pfnLibDlpiFd)(dlpi_handle_t);
/** @} */
bool VBoxLibDlpiFound(void)
{
RTLDRMOD hLibDlpi;
if (g_hLibDlpi && g_fCheckedForLibDlpi)
return true;
if (g_fCheckedForLibDlpi)
return false;
if (!RT_SUCCESS(RTLdrLoad(LIB_DLPI, &hLibDlpi)))
return false;
if ( RT_SUCCESS(RTLdrGetSymbol(hLibDlpi, "dlpi_open", (void **)&g_pfnLibDlpiOpen))
&& RT_SUCCESS(RTLdrGetSymbol(hLibDlpi, "dlpi_close", (void **)&g_pfnLibDlpiClose))
&& RT_SUCCESS(RTLdrGetSymbol(hLibDlpi, "dlpi_info", (void **)&g_pfnLibDlpiInfo))
&& RT_SUCCESS(RTLdrGetSymbol(hLibDlpi, "dlpi_bind", (void **)&g_pfnLibDlpiBind))
&& RT_SUCCESS(RTLdrGetSymbol(hLibDlpi, "dlpi_promiscon", (void **)&g_pfnLibDlpiPromiscon))
&& RT_SUCCESS(RTLdrGetSymbol(hLibDlpi, "dlpi_set_physaddr", (void **)&g_pfnLibDlpiSetPhysAddr))
&& RT_SUCCESS(RTLdrGetSymbol(hLibDlpi, "dlpi_recv", (void **)&g_pfnLibDlpiRecv))
&& RT_SUCCESS(RTLdrGetSymbol(hLibDlpi, "dlpi_fd", (void **)&g_pfnLibDlpiFd))
)
{
g_hLibDlpi = hLibDlpi;
g_fCheckedForLibDlpi = true;
return true;
}
else
{
RTLdrClose(hLibDlpi);
g_fCheckedForLibDlpi = true;
return false;
}
}