diff options
Diffstat (limited to 'src/VBox/Runtime/tools/RTKrnlModInfo.cpp')
| -rw-r--r-- | src/VBox/Runtime/tools/RTKrnlModInfo.cpp | 187 |
1 files changed, 187 insertions, 0 deletions
diff --git a/src/VBox/Runtime/tools/RTKrnlModInfo.cpp b/src/VBox/Runtime/tools/RTKrnlModInfo.cpp new file mode 100644 index 00000000..70a94624 --- /dev/null +++ b/src/VBox/Runtime/tools/RTKrnlModInfo.cpp @@ -0,0 +1,187 @@ +/* $Id: RTKrnlModInfo.cpp $ */ +/** @file + * IPRT - Utility for getting information about loaded kernel modules. + */ + +/* + * Copyright (C) 2017-2022 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>. + * + * The contents of this file may alternatively be used under the terms + * of the Common Development and Distribution License Version 1.0 + * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included + * in the VirtualBox distribution, in which case the provisions of the + * CDDL are applicable instead of those of the GPL. + * + * You may elect to license modified versions of this file under the + * terms and conditions of either the GPL or the CDDL or both. + * + * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0 + */ + + +/********************************************************************************************************************************* +* Header Files * +*********************************************************************************************************************************/ +#include <iprt/krnlmod.h> + +#include <iprt/assert.h> +#include <iprt/errcore.h> +#include <iprt/getopt.h> +#include <iprt/initterm.h> +#include <iprt/mem.h> +#include <iprt/message.h> +#include <iprt/path.h> +#include <iprt/stream.h> +#include <iprt/string.h> + + +/** + * Handles loading a kernel module by name. + * + * @returns Process status code. + * @param pszName THe module name to load. + */ +static RTEXITCODE rtKrnlModInfoHandleLoad(const char *pszName) +{ + RTEXITCODE rcExit = RTEXITCODE_SUCCESS; + int rc = RTKrnlModLoadByName(pszName); + if (RT_SUCCESS(rc)) + RTPrintf("Kernel module '%s' loaded successfully\n", pszName); + else + rcExit = RTMsgErrorExit(RTEXITCODE_FAILURE, "Error %Rrc loading kernel module '%s'", rc, pszName); + + return rcExit; +} + + +/** + * Handles unloading a kernel module by name. + * + * @returns Process status code. + * @param pszName THe module name to load. + */ +static RTEXITCODE rtKrnlModInfoHandleUnload(const char *pszName) +{ + RTEXITCODE rcExit = RTEXITCODE_SUCCESS; + int rc = RTKrnlModUnloadByName(pszName); + if (RT_SUCCESS(rc)) + RTPrintf("Kernel module '%s' unloaded successfully\n", pszName); + else + rcExit = RTMsgErrorExit(RTEXITCODE_FAILURE, "Error %Rrc unloading kernel module '%s'", rc, pszName); + + return rcExit; +} + + +/** + * Handles listing all loaded kernel modules. + * + * @returns Process status code. + */ +static RTEXITCODE rtKrnlModInfoHandleList(void) +{ + RTEXITCODE rcExit = RTEXITCODE_SUCCESS; + uint32_t cKrnlMods = RTKrnlModLoadedGetCount(); + if (cKrnlMods) + { + PRTKRNLMODINFO pahKrnlModInfo = (PRTKRNLMODINFO)RTMemAllocZ(cKrnlMods * sizeof(RTKRNLMODINFO)); + if (pahKrnlModInfo) + { + int rc = RTKrnlModLoadedQueryInfoAll(pahKrnlModInfo, cKrnlMods, &cKrnlMods); + if (RT_SUCCESS(rc)) + { + RTPrintf("Index Load address Size Ref count Name \n"); + for (unsigned i = 0; i < cKrnlMods; i++) + { + RTKRNLMODINFO hKrnlModInfo = pahKrnlModInfo[i]; + RTPrintf("%5u %#-18RHv %-10u %-10u %s\n", i, + RTKrnlModInfoGetLoadAddr(hKrnlModInfo), + RTKrnlModInfoGetSize(hKrnlModInfo), + RTKrnlModInfoGetRefCnt(hKrnlModInfo), + RTKrnlModInfoGetName(hKrnlModInfo)); + RTKrnlModInfoRelease(hKrnlModInfo); + } + } + else + rcExit = RTMsgErrorExit(RTEXITCODE_FAILURE, "Error %Rrc querying kernel modules", rc); + + RTMemFree(pahKrnlModInfo); + } + else + rcExit = RTMsgErrorExit(RTEXITCODE_FAILURE, "Error %Rrc allocating memory", VERR_NO_MEMORY); + } + + return rcExit; +} + + +int main(int argc, char **argv) +{ + int rc = RTR3InitExe(argc, &argv, 0); + if (RT_FAILURE(rc)) + return RTMsgInitFailure(rc); + + /* + * Parse arguments. + */ + static const RTGETOPTDEF s_aOptions[] = + { + { "--load", 'l', RTGETOPT_REQ_STRING }, + { "--unload", 'u', RTGETOPT_REQ_STRING }, + { "--show-loaded", 's', RTGETOPT_REQ_NOTHING }, + { "--help", 'h', RTGETOPT_REQ_NOTHING } + }; + + RTGETOPTUNION ValueUnion; + RTGETOPTSTATE GetState; + RTGetOptInit(&GetState, argc, argv, s_aOptions, RT_ELEMENTS(s_aOptions), 1, RTGETOPTINIT_FLAGS_OPTS_FIRST); + while ((rc = RTGetOpt(&GetState, &ValueUnion))) + { + switch (rc) + { + case 'l': + return rtKrnlModInfoHandleLoad(ValueUnion.psz); + case 'u': + return rtKrnlModInfoHandleUnload(ValueUnion.psz); + case 's': + return rtKrnlModInfoHandleList(); + case 'h': + RTPrintf("Usage: %s [options]\n" + "\n" + "Options:\n" + " -l, --load <module name>\n" + " Tries to load the given kernel module.\n" + " -s, --show-loaded\n" + " Lists all loaded kernel modules.\n" + , RTPathFilename(argv[0])); + return RTEXITCODE_SUCCESS; + + case 'V': + RTPrintf("$Revision: 153224 $\n"); + return RTEXITCODE_SUCCESS; + + default: + return RTGetOptPrintError(rc, &ValueUnion); + } + } + + /* No arguments means listing all loaded kernel modules. */ + return rtKrnlModInfoHandleList(); +} + |