| 1 | /* $Id: VBoxNetSend.h 63515 2016-08-15 23:19:14Z vboxsync $ */
|
|---|
| 2 | /** @file
|
|---|
| 3 | * A place to share code and definitions between VBoxNetAdp and VBoxNetFlt host drivers.
|
|---|
| 4 | */
|
|---|
| 5 |
|
|---|
| 6 | /*
|
|---|
| 7 | * Copyright (C) 2014-2016 Oracle Corporation
|
|---|
| 8 | *
|
|---|
| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
|
|---|
| 10 | * available from http://www.virtualbox.org. This file is free software;
|
|---|
| 11 | * you can redistribute it and/or modify it under the terms of the GNU
|
|---|
| 12 | * General Public License (GPL) as published by the Free Software
|
|---|
| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
|
|---|
| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
|
|---|
| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
|
|---|
| 16 | */
|
|---|
| 17 |
|
|---|
| 18 | /** @todo move this to src/VBox/HostDrivers/darwin as a .cpp file. */
|
|---|
| 19 | #ifndef ___VBox_VBoxNetSend_h
|
|---|
| 20 | #define ___VBox_VBoxNetSend_h
|
|---|
| 21 |
|
|---|
| 22 | #if defined(RT_OS_DARWIN)
|
|---|
| 23 |
|
|---|
| 24 | # include <iprt/err.h>
|
|---|
| 25 | # include <iprt/assert.h>
|
|---|
| 26 | # include <iprt/string.h>
|
|---|
| 27 |
|
|---|
| 28 | # include <sys/socket.h>
|
|---|
| 29 | # include <net/kpi_interface.h>
|
|---|
| 30 | RT_C_DECLS_BEGIN /* Buggy 10.4 headers, fixed in 10.5. */
|
|---|
| 31 | # include <sys/kpi_mbuf.h>
|
|---|
| 32 | RT_C_DECLS_END
|
|---|
| 33 | # include <net/if.h>
|
|---|
| 34 |
|
|---|
| 35 | RT_C_DECLS_BEGIN
|
|---|
| 36 |
|
|---|
| 37 | # if defined(IN_RING0)
|
|---|
| 38 |
|
|---|
| 39 | /**
|
|---|
| 40 | * Constructs and submits a dummy packet to ifnet_input().
|
|---|
| 41 | *
|
|---|
| 42 | * This is a workaround for "stuck dock icon" issue. When the first packet goes
|
|---|
| 43 | * through the interface DLIL grabs a reference to the thread that submits the
|
|---|
| 44 | * packet and holds it until the interface is destroyed. By submitting this
|
|---|
| 45 | * dummy we make DLIL grab the thread of a non-GUI process.
|
|---|
| 46 | *
|
|---|
| 47 | * Most of this function was copied from vboxNetFltDarwinMBufFromSG().
|
|---|
| 48 | *
|
|---|
| 49 | * @returns VBox status code.
|
|---|
| 50 | * @param pIfNet The interface that will hold the reference to the calling
|
|---|
| 51 | * thread. We submit dummy as if it was coming from this interface.
|
|---|
| 52 | */
|
|---|
| 53 | DECLINLINE(int) VBoxNetSendDummy(ifnet_t pIfNet)
|
|---|
| 54 | {
|
|---|
| 55 | int rc = VINF_SUCCESS;
|
|---|
| 56 |
|
|---|
| 57 | size_t cbTotal = 50; /* No Ethernet header */
|
|---|
| 58 | mbuf_how_t How = MBUF_WAITOK;
|
|---|
| 59 | mbuf_t pPkt = NULL;
|
|---|
| 60 | errno_t err = mbuf_allocpacket(How, cbTotal, NULL, &pPkt);
|
|---|
| 61 | if (!err)
|
|---|
| 62 | {
|
|---|
| 63 | /* Skip zero sized memory buffers (paranoia). */
|
|---|
| 64 | mbuf_t pCur = pPkt;
|
|---|
| 65 | while (pCur && !mbuf_maxlen(pCur))
|
|---|
| 66 | pCur = mbuf_next(pCur);
|
|---|
| 67 | Assert(pCur);
|
|---|
| 68 |
|
|---|
| 69 | /* Set the required packet header attributes. */
|
|---|
| 70 | mbuf_pkthdr_setlen(pPkt, cbTotal);
|
|---|
| 71 | mbuf_pkthdr_setheader(pPkt, mbuf_data(pCur));
|
|---|
| 72 |
|
|---|
| 73 | mbuf_setlen(pCur, cbTotal);
|
|---|
| 74 | memset(mbuf_data(pCur), 0, cbTotal);
|
|---|
| 75 |
|
|---|
| 76 | mbuf_pkthdr_setrcvif(pPkt, pIfNet); /* will crash without this. */
|
|---|
| 77 |
|
|---|
| 78 | err = ifnet_input(pIfNet, pPkt, NULL);
|
|---|
| 79 | if (err)
|
|---|
| 80 | {
|
|---|
| 81 | rc = RTErrConvertFromErrno(err);
|
|---|
| 82 | mbuf_freem(pPkt);
|
|---|
| 83 | }
|
|---|
| 84 | }
|
|---|
| 85 | else
|
|---|
| 86 | rc = RTErrConvertFromErrno(err);
|
|---|
| 87 |
|
|---|
| 88 | return rc;
|
|---|
| 89 | }
|
|---|
| 90 |
|
|---|
| 91 | # endif /* IN_RING0 */
|
|---|
| 92 |
|
|---|
| 93 | RT_C_DECLS_END
|
|---|
| 94 |
|
|---|
| 95 | #endif /* RT_OS_DARWIN */
|
|---|
| 96 |
|
|---|
| 97 | #endif /* !___VBox_VBoxNetSend_h */
|
|---|
| 98 |
|
|---|
