| 1 | /** $Id: vbox-libdlpi.cpp 28800 2010-04-27 08:22:32Z vboxsync $ */
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| 2 | /** @file
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| 3 | * Dynamically load libdpli & symbols on Solaris hosts, Internal header.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2008 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 "vbox-libdlpi.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 | * Global pointer to the libdlpi module. This should only be set once all needed libraries
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| 25 | * and symbols have been successfully loaded.
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| 26 | */
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| 27 | static RTLDRMOD g_hLibDlpi = NULL;
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| 28 |
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| 29 | /**
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| 30 | * Whether we have tried to load libdlpi yet. This flag should only be set
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| 31 | * to "true" after we have either loaded both libraries and all symbols which we need,
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| 32 | * or failed to load something and unloaded.
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| 33 | */
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| 34 | static bool g_fCheckedForLibDlpi = false;
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| 35 |
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| 36 | /** All the symbols we need from libdlpi.
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| 37 | * @{
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| 38 | */
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| 39 | int (*g_pfnLibDlpiOpen)(const char *, dlpi_handle_t *, uint_t);
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| 40 | void (*g_pfnLibDlpiClose)(dlpi_handle_t);
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| 41 | int (*g_pfnLibDlpiInfo)(dlpi_handle_t, dlpi_info_t *, uint_t);
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| 42 | int (*g_pfnLibDlpiBind)(dlpi_handle_t, uint_t, uint_t *);
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| 43 | int (*g_pfnLibDlpiSetPhysAddr)(dlpi_handle_t, uint_t, const void *, size_t);
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| 44 | int (*g_pfnLibDlpiPromiscon)(dlpi_handle_t, uint_t);
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| 45 | int (*g_pfnLibDlpiRecv)(dlpi_handle_t, void *, size_t *, void *, size_t *, int, dlpi_recvinfo_t *);
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| 46 | int (*g_pfnLibDlpiFd)(dlpi_handle_t);
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| 47 | /** @} */
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| 48 |
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| 49 | bool VBoxLibDlpiFound(void)
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| 50 | {
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| 51 | RTLDRMOD hLibDlpi;
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| 52 |
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| 53 | if (g_hLibDlpi && g_fCheckedForLibDlpi)
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| 54 | return true;
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| 55 | if (g_fCheckedForLibDlpi)
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| 56 | return false;
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| 57 | if (!RT_SUCCESS(RTLdrLoad(LIB_DLPI, &hLibDlpi)))
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| 58 | return false;
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| 59 | if ( RT_SUCCESS(RTLdrGetSymbol(hLibDlpi, "dlpi_open", (void **)&g_pfnLibDlpiOpen))
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| 60 | && RT_SUCCESS(RTLdrGetSymbol(hLibDlpi, "dlpi_close", (void **)&g_pfnLibDlpiClose))
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| 61 | && RT_SUCCESS(RTLdrGetSymbol(hLibDlpi, "dlpi_info", (void **)&g_pfnLibDlpiInfo))
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| 62 | && RT_SUCCESS(RTLdrGetSymbol(hLibDlpi, "dlpi_bind", (void **)&g_pfnLibDlpiBind))
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| 63 | && RT_SUCCESS(RTLdrGetSymbol(hLibDlpi, "dlpi_promiscon", (void **)&g_pfnLibDlpiPromiscon))
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| 64 | && RT_SUCCESS(RTLdrGetSymbol(hLibDlpi, "dlpi_set_physaddr", (void **)&g_pfnLibDlpiSetPhysAddr))
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| 65 | && RT_SUCCESS(RTLdrGetSymbol(hLibDlpi, "dlpi_recv", (void **)&g_pfnLibDlpiRecv))
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| 66 | && RT_SUCCESS(RTLdrGetSymbol(hLibDlpi, "dlpi_fd", (void **)&g_pfnLibDlpiFd))
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| 67 | )
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| 68 | {
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| 69 | g_hLibDlpi = hLibDlpi;
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| 70 | g_fCheckedForLibDlpi = true;
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| 71 | return true;
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| 72 | }
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| 73 | else
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| 74 | {
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| 75 | RTLdrClose(hLibDlpi);
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| 76 | g_fCheckedForLibDlpi = true;
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| 77 | return false;
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| 78 | }
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| 79 | }
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