| 1 | /* $Id: DynLoadLibSolaris.cpp 69498 2017-10-28 15:07:25Z vboxsync $ */
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| 2 | /** @file
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| 3 | * Dynamically load libraries for Solaris hosts.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2008-2016 Oracle Corporation
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| 8 | *
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| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 10 | * available from http://www.virtualbox.org. This file is free software;
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| 11 | * you can redistribute it and/or modify it under the terms of the GNU
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| 12 | * General Public License (GPL) as published by the Free Software
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| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 16 | */
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| 17 |
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| 18 | #include "DynLoadLibSolaris.h"
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| 19 |
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| 20 | #include <iprt/err.h>
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| 21 | #include <iprt/ldr.h>
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| 22 |
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| 23 |
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| 24 | /** -=-=-=-=-= LIB DLPI -=-=-=-=-=-=- **/
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| 25 |
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| 26 | /**
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| 27 | * Global pointer to the libdlpi module. This should only be set once all needed libraries
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| 28 | * and symbols have been successfully loaded.
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| 29 | */
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| 30 | static RTLDRMOD g_hLibDlpi = NIL_RTLDRMOD;
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| 31 |
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| 32 | /**
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| 33 | * Whether we have tried to load libdlpi yet. This flag should only be set
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| 34 | * to "true" after we have either loaded both libraries and all symbols which we need,
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| 35 | * or failed to load something and unloaded.
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| 36 | */
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| 37 | static bool g_fCheckedForLibDlpi = false;
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| 38 |
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| 39 | /** All the symbols we need from libdlpi.
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| 40 | * @{
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| 41 | */
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| 42 | int (*g_pfnLibDlpiWalk)(dlpi_walkfunc_t *, void *, uint_t);
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| 43 | int (*g_pfnLibDlpiOpen)(const char *, dlpi_handle_t *, uint_t);
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| 44 | void (*g_pfnLibDlpiClose)(dlpi_handle_t);
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| 45 | /** @} */
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| 46 |
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| 47 | bool VBoxSolarisLibDlpiFound(void)
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| 48 | {
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| 49 | RTLDRMOD hLibDlpi;
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| 50 |
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| 51 | if (g_fCheckedForLibDlpi)
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| 52 | return g_hLibDlpi != NIL_RTLDRMOD;
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| 53 | g_fCheckedForLibDlpi = true;
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| 54 | int rc = RTLdrLoad(LIB_DLPI, &hLibDlpi);
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| 55 | if (RT_SUCCESS(rc))
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| 56 | {
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| 57 | /*
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| 58 | * Unfortunately; we cannot make use of dlpi_get_physaddr because it requires us to
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| 59 | * open the VNIC/link which requires root permissions :/
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| 60 | */
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| 61 | rc = RTLdrGetSymbol(hLibDlpi, "dlpi_walk", (void **)&g_pfnLibDlpiWalk);
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| 62 | rc |= RTLdrGetSymbol(hLibDlpi, "dlpi_close", (void **)&g_pfnLibDlpiClose);
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| 63 | rc |= RTLdrGetSymbol(hLibDlpi, "dlpi_open", (void **)&g_pfnLibDlpiOpen);
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| 64 | if (RT_SUCCESS(rc))
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| 65 | {
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| 66 | g_hLibDlpi = hLibDlpi;
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| 67 | return true;
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| 68 | }
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| 69 |
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| 70 | RTLdrClose(hLibDlpi);
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| 71 | }
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| 72 | hLibDlpi = NIL_RTLDRMOD;
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| 73 | return false;
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| 74 | }
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| 75 |
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