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/* $Id: DynLoadLibSolaris.cpp $ */
/** @file
* Dynamically load libraries for Solaris hosts.
*/
/*
* Copyright (C) 2008-2022 Oracle and/or its affiliates.
*
* This file is part of VirtualBox base platform packages, as
* available from https://www.virtualbox.org.
*
* 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, in version 3 of the
* License.
*
* 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, see <https://www.gnu.org/licenses>.
*
* SPDX-License-Identifier: GPL-3.0-only
*/
#include "DynLoadLibSolaris.h"
#include <iprt/errcore.h>
#include <iprt/ldr.h>
/** -=-=-=-=-= LIB DLPI -=-=-=-=-=-=- **/
/**
* 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 = NIL_RTLDRMOD;
/**
* 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_pfnLibDlpiWalk)(dlpi_walkfunc_t *, void *, uint_t);
int (*g_pfnLibDlpiOpen)(const char *, dlpi_handle_t *, uint_t);
void (*g_pfnLibDlpiClose)(dlpi_handle_t);
/** @} */
bool VBoxSolarisLibDlpiFound(void)
{
RTLDRMOD hLibDlpi;
if (g_fCheckedForLibDlpi)
return g_hLibDlpi != NIL_RTLDRMOD;
g_fCheckedForLibDlpi = true;
int rc = RTLdrLoad(LIB_DLPI, &hLibDlpi);
if (RT_SUCCESS(rc))
{
/*
* Unfortunately; we cannot make use of dlpi_get_physaddr because it requires us to
* open the VNIC/link which requires root permissions :/
*/
rc = RTLdrGetSymbol(hLibDlpi, "dlpi_walk", (void **)&g_pfnLibDlpiWalk);
rc |= RTLdrGetSymbol(hLibDlpi, "dlpi_close", (void **)&g_pfnLibDlpiClose);
rc |= RTLdrGetSymbol(hLibDlpi, "dlpi_open", (void **)&g_pfnLibDlpiOpen);
if (RT_SUCCESS(rc))
{
g_hLibDlpi = hLibDlpi;
return true;
}
RTLdrClose(hLibDlpi);
}
hLibDlpi = NIL_RTLDRMOD;
return false;
}
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