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Diffstat (limited to 'src/VBox/HostDrivers/VBoxNetAdp/VBoxNetAdpInternal.h')
| -rw-r--r-- | src/VBox/HostDrivers/VBoxNetAdp/VBoxNetAdpInternal.h | 203 |
1 files changed, 203 insertions, 0 deletions
diff --git a/src/VBox/HostDrivers/VBoxNetAdp/VBoxNetAdpInternal.h b/src/VBox/HostDrivers/VBoxNetAdp/VBoxNetAdpInternal.h new file mode 100644 index 00000000..1f2822d9 --- /dev/null +++ b/src/VBox/HostDrivers/VBoxNetAdp/VBoxNetAdpInternal.h @@ -0,0 +1,203 @@ +/* $Id: VBoxNetAdpInternal.h $ */ +/** @file + * VBoxNetAdp - Network Filter Driver (Host), Internal Header. + */ + +/* + * Copyright (C) 2008-2022 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 VBOX_INCLUDED_SRC_VBoxNetAdp_VBoxNetAdpInternal_h +#define VBOX_INCLUDED_SRC_VBoxNetAdp_VBoxNetAdpInternal_h +#ifndef RT_WITHOUT_PRAGMA_ONCE +# pragma once +#endif + +#include <VBox/sup.h> +#include <VBox/intnet.h> +#include <iprt/semaphore.h> +#include <iprt/assert.h> + + +RT_C_DECLS_BEGIN + +/** Pointer to the globals. */ +typedef struct VBOXNETADPGLOBALS *PVBOXNETADPGLOBALS; + +#define VBOXNETADP_MAX_INSTANCES 128 +#define VBOXNETADP_MAX_UNITS 128 +#define VBOXNETADP_NAME "vboxnet" +#define VBOXNETADP_MAX_NAME_LEN 32 +#define VBOXNETADP_MTU 1500 +#if defined(RT_OS_DARWIN) +# define VBOXNETADP_MAX_FAMILIES 4 +# define VBOXNETADP_DETACH_TIMEOUT 500 +#endif + +#define VBOXNETADP_CTL_DEV_NAME "vboxnetctl" +#define VBOXNETADP_CTL_ADD _IOWR('v', 1, VBOXNETADPREQ) +#define VBOXNETADP_CTL_REMOVE _IOW('v', 2, VBOXNETADPREQ) + +typedef struct VBoxNetAdpReq +{ + char szName[VBOXNETADP_MAX_NAME_LEN]; +} VBOXNETADPREQ; +typedef VBOXNETADPREQ *PVBOXNETADPREQ; + +/** + * Void entries mark vacant slots in adapter array. Valid entries are busy slots. + * As soon as slot is being modified its state changes to transitional. + * An entry in transitional state must only be accessed by the thread that + * put it to this state. + */ +/** + * To avoid races on adapter fields we stick to the following rules: + * - rewrite: Int net port calls are serialized + * - No modifications are allowed on busy adapters (deactivate first) + * Refuse to destroy adapter until it gets to available state + * - No transfers (thus getting busy) on inactive adapters + * - Init sequence: void->available->connected->active + 1) Create + 2) Connect + 3) Activate + * - Destruction sequence: active->connected->available->void + 1) Deactivate + 2) Disconnect + 3) Destroy +*/ + +enum VBoxNetAdpState +{ + kVBoxNetAdpState_Invalid, + kVBoxNetAdpState_Transitional, + kVBoxNetAdpState_Active, + kVBoxNetAdpState_32BitHack = 0x7FFFFFFF +}; +typedef enum VBoxNetAdpState VBOXNETADPSTATE; + +struct VBoxNetAdapter +{ + /** Denotes availability of this slot in adapter array. */ + VBOXNETADPSTATE enmState; + /** Corresponds to the digit at the end of device name. */ + int iUnit; + + union + { +#ifdef VBOXNETADP_OS_SPECFIC + struct + { +# if defined(RT_OS_DARWIN) + /** @name Darwin instance data. + * @{ */ + /** Event to signal detachment of interface. */ + RTSEMEVENT hEvtDetached; + /** Pointer to Darwin interface structure. */ + ifnet_t pIface; + /** MAC address. */ + RTMAC Mac; + /** @} */ +# elif defined(RT_OS_LINUX) + /** @name Darwin instance data. + * @{ */ + /** Pointer to Linux network device structure. */ + struct net_device *pNetDev; + /** @} */ +# elif defined(RT_OS_FREEBSD) + /** @name FreeBSD instance data. + * @{ */ + struct ifnet *ifp; + /** @} */ +# else +# error PORTME +# endif + } s; +#endif + /** Union alignment to a pointer. */ + void *pvAlign; + /** Padding. */ + uint8_t abPadding[64]; + } u; + /** The interface name. */ + char szName[VBOXNETADP_MAX_NAME_LEN]; +}; +typedef struct VBoxNetAdapter VBOXNETADP; +typedef VBOXNETADP *PVBOXNETADP; +/* Paranoia checks for alignment and padding. */ +AssertCompileMemberAlignment(VBOXNETADP, u, ARCH_BITS/8); +AssertCompileMemberAlignment(VBOXNETADP, szName, ARCH_BITS/8); +AssertCompileMembersSameSize(VBOXNETADP, u, VBOXNETADP, u.abPadding); + +DECLHIDDEN(int) vboxNetAdpInit(void); +DECLHIDDEN(void) vboxNetAdpShutdown(void); +DECLHIDDEN(int) vboxNetAdpCreate(PVBOXNETADP *ppNew, const char *pcszName); +DECLHIDDEN(int) vboxNetAdpDestroy(PVBOXNETADP pThis); +DECLHIDDEN(PVBOXNETADP) vboxNetAdpFindByName(const char *pszName); +DECLHIDDEN(void) vboxNetAdpComposeMACAddress(PVBOXNETADP pThis, PRTMAC pMac); + + +/** + * This is called to perform OS-specific structure initializations. + * + * @return IPRT status code. + * @param pThis The new instance. + * + * @remarks Owns no locks. + */ +DECLHIDDEN(int) vboxNetAdpOsInit(PVBOXNETADP pThis); + +/** + * Counter part to vboxNetAdpOsCreate(). + * + * @return IPRT status code. + * @param pThis The new instance. + * + * @remarks May own the semaphores for the global list, the network lock and the out-bound trunk port. + */ +DECLHIDDEN(void) vboxNetAdpOsDestroy(PVBOXNETADP pThis); + +/** + * This is called to attach to the actual host interface + * after linking the instance into the list. + * + * @return IPRT status code. + * @param pThis The new instance. + * @param pMac The MAC address to use for this instance. + * + * @remarks Owns no locks. + */ +DECLHIDDEN(int) vboxNetAdpOsCreate(PVBOXNETADP pThis, PCRTMAC pMac); + + + +RT_C_DECLS_END + +#endif /* !VBOX_INCLUDED_SRC_VBoxNetAdp_VBoxNetAdpInternal_h */ + |