diff options
Diffstat (limited to 'src/VBox/HostDrivers/darwin/VBoxNetSend.h')
| -rw-r--r-- | src/VBox/HostDrivers/darwin/VBoxNetSend.h | 132 |
1 files changed, 132 insertions, 0 deletions
diff --git a/src/VBox/HostDrivers/darwin/VBoxNetSend.h b/src/VBox/HostDrivers/darwin/VBoxNetSend.h new file mode 100644 index 00000000..5335727a --- /dev/null +++ b/src/VBox/HostDrivers/darwin/VBoxNetSend.h @@ -0,0 +1,132 @@ +/* $Id: VBoxNetSend.h $ */ +/** @file + * A place to share code and definitions between VBoxNetAdp and VBoxNetFlt host drivers. + */ + +/* + * Copyright (C) 2014-2022 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 + */ + +/** @todo move this to src/VBox/HostDrivers/darwin as a .cpp file. */ + +#ifndef VBOX_INCLUDED_SRC_darwin_VBoxNetSend_h +#define VBOX_INCLUDED_SRC_darwin_VBoxNetSend_h +#ifndef RT_WITHOUT_PRAGMA_ONCE +# pragma once +#endif + +#if defined(RT_OS_DARWIN) + +# include <iprt/err.h> +# include <iprt/assert.h> +# include <iprt/string.h> + +# include <sys/socket.h> +# if MAC_OS_X_VERSION_MIN_REQUIRED >= 101500 /* The 10.15 SDK has a slightly butchered API deprecation attempt. */ +# pragma clang diagnostic push +# pragma clang diagnostic ignored "-Wmacro-redefined" /* Each header redefines __NKE_API_DEPRECATED. */ +# pragma clang diagnostic ignored "-Wmissing-declarations" /* Misplaced __NKE_API_DEPRECATED; in kpi_mbuf.h. */ +# include <net/kpi_interface.h> +# include <sys/kpi_mbuf.h> +# include <net/if.h> +# pragma clang diagnostic pop +# else /* < 10.15 */ +# include <net/kpi_interface.h> +RT_C_DECLS_BEGIN /* Buggy 10.4 headers, fixed in 10.5. */ +# include <sys/kpi_mbuf.h> +RT_C_DECLS_END +# include <net/if.h> +# endif /* < 10.15 */ + + +RT_C_DECLS_BEGIN + +# if defined(IN_RING0) + +/** + * Constructs and submits a dummy packet to ifnet_input(). + * + * This is a workaround for "stuck dock icon" issue. When the first packet goes + * through the interface DLIL grabs a reference to the thread that submits the + * packet and holds it until the interface is destroyed. By submitting this + * dummy we make DLIL grab the thread of a non-GUI process. + * + * Most of this function was copied from vboxNetFltDarwinMBufFromSG(). + * + * @returns VBox status code. + * @param pIfNet The interface that will hold the reference to the calling + * thread. We submit dummy as if it was coming from this interface. + */ +DECLINLINE(int) VBoxNetSendDummy(ifnet_t pIfNet) +{ + int rc = VINF_SUCCESS; + + size_t cbTotal = 50; /* No Ethernet header */ + mbuf_how_t How = MBUF_WAITOK; + mbuf_t pPkt = NULL; + errno_t err = mbuf_allocpacket(How, cbTotal, NULL, &pPkt); + if (!err) + { + /* Skip zero sized memory buffers (paranoia). */ + mbuf_t pCur = pPkt; + while (pCur && !mbuf_maxlen(pCur)) + pCur = mbuf_next(pCur); + Assert(pCur); + + /* Set the required packet header attributes. */ + mbuf_pkthdr_setlen(pPkt, cbTotal); + mbuf_pkthdr_setheader(pPkt, mbuf_data(pCur)); + + mbuf_setlen(pCur, cbTotal); + memset(mbuf_data(pCur), 0, cbTotal); + + mbuf_pkthdr_setrcvif(pPkt, pIfNet); /* will crash without this. */ + + err = ifnet_input(pIfNet, pPkt, NULL); + if (err) + { + rc = RTErrConvertFromErrno(err); + mbuf_freem(pPkt); + } + } + else + rc = RTErrConvertFromErrno(err); + + return rc; +} + +# endif /* IN_RING0 */ + +RT_C_DECLS_END + +#endif /* RT_OS_DARWIN */ + +#endif /* !VBOX_INCLUDED_SRC_darwin_VBoxNetSend_h */ + |