| 1 | /* $Id: DynLoadLibSolaris.cpp 98292 2023-01-25 01:14:53Z 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) 2008-2023 Oracle and/or its affiliates.
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| 8 | *
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| 9 | * This file is part of VirtualBox base platform packages, as
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| 10 | * available from https://www.virtualbox.org.
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| 11 | *
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| 12 | * This program is free software; you can redistribute it and/or
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| 13 | * modify it under the terms of the GNU General Public License
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| 14 | * as published by the Free Software Foundation, in version 3 of the
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| 15 | * License.
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| 16 | *
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| 17 | * This program is distributed in the hope that it will be useful, but
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| 18 | * WITHOUT ANY WARRANTY; without even the implied warranty of
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| 19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 20 | * General Public License for more details.
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| 21 | *
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| 22 | * You should have received a copy of the GNU General Public License
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| 23 | * along with this program; if not, see <https://www.gnu.org/licenses>.
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| 24 | *
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| 25 | * SPDX-License-Identifier: GPL-3.0-only
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| 26 | */
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| 27 |
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| 28 | #include "DynLoadLibSolaris.h"
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| 29 |
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| 30 | #include <iprt/errcore.h>
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| 31 | #include <iprt/ldr.h>
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| 32 |
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| 33 |
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| 34 | /** -=-=-=-=-= LIB DLPI -=-=-=-=-=-=- **/
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| 35 |
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| 36 | /**
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| 37 | * Global pointer to the libdlpi module. This should only be set once all needed libraries
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| 38 | * and symbols have been successfully loaded.
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| 39 | */
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| 40 | static RTLDRMOD g_hLibDlpi = NIL_RTLDRMOD;
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| 41 |
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| 42 | /**
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| 43 | * Whether we have tried to load libdlpi yet. This flag should only be set
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| 44 | * to "true" after we have either loaded both libraries and all symbols which we need,
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| 45 | * or failed to load something and unloaded.
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| 46 | */
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| 47 | static bool g_fCheckedForLibDlpi = false;
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| 48 |
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| 49 | /** All the symbols we need from libdlpi.
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| 50 | * @{
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| 51 | */
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| 52 | int (*g_pfnLibDlpiWalk)(dlpi_walkfunc_t *, void *, uint_t);
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| 53 | int (*g_pfnLibDlpiOpen)(const char *, dlpi_handle_t *, uint_t);
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| 54 | void (*g_pfnLibDlpiClose)(dlpi_handle_t);
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| 55 | /** @} */
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| 56 |
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| 57 | bool VBoxSolarisLibDlpiFound(void)
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| 58 | {
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| 59 | RTLDRMOD hLibDlpi;
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| 60 |
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| 61 | if (g_fCheckedForLibDlpi)
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| 62 | return g_hLibDlpi != NIL_RTLDRMOD;
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| 63 | g_fCheckedForLibDlpi = true;
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| 64 | int vrc = RTLdrLoad(LIB_DLPI, &hLibDlpi);
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| 65 | if (RT_SUCCESS(vrc))
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| 66 | {
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| 67 | /*
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| 68 | * Unfortunately; we cannot make use of dlpi_get_physaddr because it requires us to
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| 69 | * open the VNIC/link which requires root permissions :/
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| 70 | */
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| 71 | vrc = RTLdrGetSymbol(hLibDlpi, "dlpi_walk", (void **)&g_pfnLibDlpiWalk);
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| 72 | vrc |= RTLdrGetSymbol(hLibDlpi, "dlpi_close", (void **)&g_pfnLibDlpiClose);
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| 73 | vrc |= RTLdrGetSymbol(hLibDlpi, "dlpi_open", (void **)&g_pfnLibDlpiOpen);
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| 74 | if (RT_SUCCESS(vrc))
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| 75 | {
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| 76 | g_hLibDlpi = hLibDlpi;
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| 77 | return true;
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| 78 | }
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| 79 |
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| 80 | RTLdrClose(hLibDlpi);
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| 81 | }
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| 82 | hLibDlpi = NIL_RTLDRMOD;
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| 83 | return false;
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| 84 | }
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| 85 |
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