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Diffstat (limited to 'include/iprt/krnlmod.h')
| -rw-r--r-- | include/iprt/krnlmod.h | 202 |
1 files changed, 202 insertions, 0 deletions
diff --git a/include/iprt/krnlmod.h b/include/iprt/krnlmod.h new file mode 100644 index 00000000..9b1eb12c --- /dev/null +++ b/include/iprt/krnlmod.h @@ -0,0 +1,202 @@ +/** @file + * IPRT - Kernel module. + */ + +/* + * 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 + */ + +#ifndef IPRT_INCLUDED_krnlmod_h +#define IPRT_INCLUDED_krnlmod_h +#ifndef RT_WITHOUT_PRAGMA_ONCE +# pragma once +#endif + +#include <iprt/cdefs.h> +#include <iprt/types.h> + + +RT_C_DECLS_BEGIN + +/** @defgroup grp_rt_kmod RTKrnlMod - Kernel module/driver userspace side API. + * @ingroup grp_rt + * @{ + */ + +/** + * Checks whether the given kernel module was loaded. + * + * @returns IPRT status code. + * @param pszName The driver name to check. + * @param pfLoaded Where to store the flag whether the module is loaded on success. + */ +RTDECL(int) RTKrnlModQueryLoaded(const char *pszName, bool *pfLoaded); + +/** + * Returns the kernel module information handle for the given loaded kernel module. + * + * @returns IPRT status code. + * @retval VERR_NOT_FOUND if the kernel driver is not loaded. + * @param pszName The driver name. + * @param phKrnlModInfo Where to store the handle to the kernel module information record. + */ +RTDECL(int) RTKrnlModLoadedQueryInfo(const char *pszName, PRTKRNLMODINFO phKrnlModInfo); + +/** + * Returns the number of kernel modules loaded on the host system. + * + * @returns Number of kernel modules loaded. + */ +RTDECL(uint32_t) RTKrnlModLoadedGetCount(void); + +/** + * Returns all loaded kernel modules on the host. + * + * @returns IPRT status code. + * @retval VERR_BUFFER_OVERFLOW if there are not enough entries in the passed handle array. + * The required number of entries will be returned in pcEntries. + * @param pahKrnlModInfo Where to store the handles to the kernel module information records + * on success. + * @param cEntriesMax Maximum number of entries fitting in the given array. + * @param pcEntries Where to store the number of entries used/required. + */ +RTDECL(int) RTKrnlModLoadedQueryInfoAll(PRTKRNLMODINFO pahKrnlModInfo, uint32_t cEntriesMax, + uint32_t *pcEntries); + +/** + * Retains the given kernel module information record handle. + * + * @returns New reference count. + * @param hKrnlModInfo The kernel module information record handle. + */ +RTDECL(uint32_t) RTKrnlModInfoRetain(RTKRNLMODINFO hKrnlModInfo); + +/** + * Releases the given kernel module information record handle. + * + * @returns New reference count, on 0 the handle is destroyed. + * @param hKrnlModInfo The kernel module information record handle. + */ +RTDECL(uint32_t) RTKrnlModInfoRelease(RTKRNLMODINFO hKrnlModInfo); + +/** + * Returns the number of references held onto the kernel module by other + * drivers or userspace clients. + * + * @returns Number of references held on the kernel module. + * @param hKrnlModInfo The kernel module information record handle. + */ +RTDECL(uint32_t) RTKrnlModInfoGetRefCnt(RTKRNLMODINFO hKrnlModInfo); + +/** + * Returns the name of the kernel module. + * + * @returns Pointer to the kernel module name. + * @param hKrnlModInfo The kernel module information record handle. + */ +RTDECL(const char *) RTKrnlModInfoGetName(RTKRNLMODINFO hKrnlModInfo); + +/** + * Returns the filepath of the kernel module. + * + * @returns Pointer to the kernel module path. + * @param hKrnlModInfo The kernel module information record handle. + */ +RTDECL(const char *) RTKrnlModInfoGetFilePath(RTKRNLMODINFO hKrnlModInfo); + +/** + * Returns the size of the kernel module. + * + * @returns Size of the kernel module in bytes. + * @param hKrnlModInfo The kernel module information record handle. + */ +RTDECL(size_t) RTKrnlModInfoGetSize(RTKRNLMODINFO hKrnlModInfo); + +/** + * Returns the load address of the kernel module. + * + * @returns Load address of the kernel module. + * @param hKrnlModInfo The kernel module information record handle. + */ +RTDECL(RTR0UINTPTR) RTKrnlModInfoGetLoadAddr(RTKRNLMODINFO hKrnlModInfo); + +/** + * Query the kernel information record for a referencing kernel module of the + * given record. + * + * @returns IPRT status code. + * @param hKrnlModInfo The kernel module information record handle. + * @param idx Referencing kernel module index (< reference count + * as retrieved by RTKrnlModInfoGetRefCnt() ). + * @param phKrnlModInfoRef Where to store the handle to the referencing kernel module + * information record. + */ +RTDECL(int) RTKrnlModInfoQueryRefModInfo(RTKRNLMODINFO hKrnlModInfo, uint32_t idx, + PRTKRNLMODINFO phKrnlModInfoRef); + +/** + * Tries to load a kernel module by the given name. + * + * @returns IPRT status code. + * @retval VERR_NOT_SUPPORTED if not supported by or implemented for the platform. + * @param pszName The name of the kernel module. This is highly platform + * dependent. + * + * @note On macOS for example the name is the bundle ID. + */ +RTDECL(int) RTKrnlModLoadByName(const char *pszName); + +/** + * Tries to load a kernel module by the given file path. + * + * @returns IPRT status code. + * @retval VERR_NOT_SUPPORTED if not supported by or implemented for the platform. + * @param pszPath The path of the kernel module. + */ +RTDECL(int) RTKrnlModLoadByPath(const char *pszPath); + +/** + * Tries to unload a kernel module by the given name. + * + * @returns IPRT status code. + * @param pszName The name of the kernel module. This is highly platform + * dependent and should be queried with RTKrnlModInfoGetName() + * when checking whether the module was actually loaded. + * + * @note On macOS for example the name is the bundle ID. + */ +RTDECL(int) RTKrnlModUnloadByName(const char *pszName); + +/** @} */ + +RT_C_DECLS_END + +#endif /* !IPRT_INCLUDED_krnlmod_h */ + |