Adding upstream version 6.0.4-dfsg.upstream/6.0.4-dfsgupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 558 insertions, 0 deletions

diff --git a/src/VBox/HostDrivers/VBoxNetAdp/linux/VBoxNetAdp-linux.c b/src/VBox/HostDrivers/VBoxNetAdp/linux/VBoxNetAdp-linux.c
new file mode 100644
index 00000000..3e33ee6c
--- /dev/null
+++ b/src/VBox/HostDrivers/VBoxNetAdp/linux/VBoxNetAdp-linux.c
@@ -0,0 +1,558 @@
+/* $Id: VBoxNetAdp-linux.c $ */
+/** @file
+ * VBoxNetAdp - Virtual Network Adapter Driver (Host), Linux Specific Code.
+ */
+
+/*
+ * Copyright (C) 2009-2019 Oracle Corporation
+ *
+ * This file is part of VirtualBox Open Source Edition (OSE), as
+ * available from http://www.virtualbox.org. This file is free software;
+ * you can redistribute it and/or modify it under the terms of the GNU
+ * General Public License (GPL) as published by the Free Software
+ * Foundation, in version 2 as it comes in the "COPYING" file of the
+ * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
+ * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
+ *
+ * The contents of this file may alternatively be used under the terms
+ * of the Common Development and Distribution License Version 1.0
+ * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
+ * VirtualBox OSE 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.
+ */
+
+
+/*********************************************************************************************************************************
+*   Header Files                                                                                                                 *
+*********************************************************************************************************************************/
+#include "the-linux-kernel.h"
+#include "version-generated.h"
+#include "revision-generated.h"
+#include "product-generated.h"
+#include <linux/ethtool.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/miscdevice.h>
+
+#define LOG_GROUP LOG_GROUP_NET_ADP_DRV
+#include <VBox/log.h>
+#include <iprt/errcore.h>
+#include <iprt/process.h>
+#include <iprt/initterm.h>
+#include <iprt/mem.h>
+#include <iprt/string.h>
+
+/*
+#include <iprt/assert.h>
+#include <iprt/semaphore.h>
+#include <iprt/spinlock.h>
+#include <iprt/string.h>
+#include <iprt/uuid.h>
+#include <iprt/alloca.h>
+*/
+
+#define VBOXNETADP_OS_SPECFIC 1
+#include "../VBoxNetAdpInternal.h"
+
+
+/*********************************************************************************************************************************
+*   Defined Constants And Macros                                                                                                 *
+*********************************************************************************************************************************/
+#define VBOXNETADP_LINUX_NAME      "vboxnet%d"
+#define VBOXNETADP_CTL_DEV_NAME    "vboxnetctl"
+
+#define VBOXNETADP_FROM_IFACE(iface) ((PVBOXNETADP) ifnet_softc(iface))
+
+
+/*********************************************************************************************************************************
+*   Internal Functions                                                                                                           *
+*********************************************************************************************************************************/
+static int  VBoxNetAdpLinuxInit(void);
+static void VBoxNetAdpLinuxUnload(void);
+
+static int VBoxNetAdpLinuxOpen(struct inode *pInode, struct file *pFilp);
+static int VBoxNetAdpLinuxClose(struct inode *pInode, struct file *pFilp);
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 36)
+static int VBoxNetAdpLinuxIOCtl(struct inode *pInode, struct file *pFilp,
+                                unsigned int uCmd, unsigned long ulArg);
+#else /* LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 36) */
+static long VBoxNetAdpLinuxIOCtlUnlocked(struct file *pFilp,
+                                         unsigned int uCmd, unsigned long ulArg);
+#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 36) */
+
+static void vboxNetAdpEthGetDrvinfo(struct net_device *dev, struct ethtool_drvinfo *info);
+# if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 20, 0)
+static int vboxNetAdpEthGetLinkSettings(struct net_device *pNetDev, struct ethtool_link_ksettings *pLinkSettings);
+#else /* LINUX_VERSION_CODE < KERNEL_VERSION(4, 20, 0) */
+static int vboxNetAdpEthGetSettings(struct net_device *dev, struct ethtool_cmd *cmd);
+#endif /* LINUX_VERSION_CODE < KERNEL_VERSION(4, 20, 0) */
+
+
+/*********************************************************************************************************************************
+*   Global Variables                                                                                                             *
+*********************************************************************************************************************************/
+module_init(VBoxNetAdpLinuxInit);
+module_exit(VBoxNetAdpLinuxUnload);
+
+MODULE_AUTHOR(VBOX_VENDOR);
+MODULE_DESCRIPTION(VBOX_PRODUCT " Network Adapter Driver");
+MODULE_LICENSE("GPL");
+#ifdef MODULE_VERSION
+MODULE_VERSION(VBOX_VERSION_STRING " r" RT_XSTR(VBOX_SVN_REV) " (" RT_XSTR(INTNETTRUNKIFPORT_VERSION) ")");
+#endif
+
+/**
+ * The (common) global data.
+ */
+static struct file_operations gFileOpsVBoxNetAdp =
+{
+    owner:      THIS_MODULE,
+    open:       VBoxNetAdpLinuxOpen,
+    release:    VBoxNetAdpLinuxClose,
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 36)
+    ioctl:      VBoxNetAdpLinuxIOCtl,
+#else /* LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 36) */
+    unlocked_ioctl: VBoxNetAdpLinuxIOCtlUnlocked,
+#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 36) */
+};
+
+/** The miscdevice structure. */
+static struct miscdevice g_CtlDev =
+{
+    minor:      MISC_DYNAMIC_MINOR,
+    name:       VBOXNETADP_CTL_DEV_NAME,
+    fops:       &gFileOpsVBoxNetAdp,
+# if LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 17)
+    devfs_name: VBOXNETADP_CTL_DEV_NAME
+# endif
+};
+
+# if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 19)
+static const struct ethtool_ops gEthToolOpsVBoxNetAdp =
+# else
+static struct ethtool_ops gEthToolOpsVBoxNetAdp =
+# endif
+{
+    .get_drvinfo        = vboxNetAdpEthGetDrvinfo,
+# if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 20, 0)
+    .get_link_ksettings = vboxNetAdpEthGetLinkSettings,
+# else /* LINUX_VERSION_CODE < KERNEL_VERSION(4, 20, 0) */
+    .get_settings       = vboxNetAdpEthGetSettings,
+# endif /* LINUX_VERSION_CODE < KERNEL_VERSION(4, 20, 0) */
+    .get_link           = ethtool_op_get_link,
+};
+
+
+struct VBoxNetAdpPriv
+{
+    struct net_device_stats Stats;
+};
+
+typedef struct VBoxNetAdpPriv VBOXNETADPPRIV;
+typedef VBOXNETADPPRIV *PVBOXNETADPPRIV;
+
+static int vboxNetAdpLinuxOpen(struct net_device *pNetDev)
+{
+    netif_start_queue(pNetDev);
+    return 0;
+}
+
+static int vboxNetAdpLinuxStop(struct net_device *pNetDev)
+{
+    netif_stop_queue(pNetDev);
+    return 0;
+}
+
+static int vboxNetAdpLinuxXmit(struct sk_buff *pSkb, struct net_device *pNetDev)
+{
+    PVBOXNETADPPRIV pPriv = netdev_priv(pNetDev);
+
+    /* Update the stats. */
+    pPriv->Stats.tx_packets++;
+    pPriv->Stats.tx_bytes += pSkb->len;
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 31)
+    /* Update transmission time stamp. */
+    pNetDev->trans_start = jiffies;
+#endif
+    /* Nothing else to do, just free the sk_buff. */
+    dev_kfree_skb(pSkb);
+    return 0;
+}
+
+struct net_device_stats *vboxNetAdpLinuxGetStats(struct net_device *pNetDev)
+{
+    PVBOXNETADPPRIV pPriv = netdev_priv(pNetDev);
+    return &pPriv->Stats;
+}
+
+
+/* ethtool_ops::get_drvinfo */
+static void vboxNetAdpEthGetDrvinfo(struct net_device *pNetDev, struct ethtool_drvinfo *info)
+{
+    PVBOXNETADPPRIV pPriv = netdev_priv(pNetDev);
+    NOREF(pPriv);
+
+    RTStrPrintf(info->driver, sizeof(info->driver),
+                "%s", VBOXNETADP_NAME);
+
+    /*
+     * Would be nice to include VBOX_SVN_REV, but it's not available
+     * here.  Use file's svn revision via svn keyword?
+     */
+    RTStrPrintf(info->version, sizeof(info->version),
+                "%s", VBOX_VERSION_STRING);
+
+    RTStrPrintf(info->fw_version, sizeof(info->fw_version),
+                "0x%08X", INTNETTRUNKIFPORT_VERSION);
+
+    RTStrPrintf(info->bus_info, sizeof(info->driver),
+                "N/A");
+}
+
+
+# if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 20, 0)
+/* ethtool_ops::get_link_ksettings */
+static int vboxNetAdpEthGetLinkSettings(struct net_device *pNetDev, struct ethtool_link_ksettings *pLinkSettings)
+{
+    /* We just need to set field we care for, the rest is done by ethtool_get_link_ksettings() helper in ethtool. */
+    ethtool_link_ksettings_zero_link_mode(pLinkSettings, supported);
+    ethtool_link_ksettings_zero_link_mode(pLinkSettings, advertising);
+    ethtool_link_ksettings_zero_link_mode(pLinkSettings, lp_advertising);
+    pLinkSettings->base.speed       = SPEED_10;
+    pLinkSettings->base.duplex      = DUPLEX_FULL;
+    pLinkSettings->base.port        = PORT_TP;
+    pLinkSettings->base.phy_address = 0;
+    pLinkSettings->base.transceiver = XCVR_INTERNAL;
+    pLinkSettings->base.autoneg     = AUTONEG_DISABLE;
+    return 0;
+}
+#else /* LINUX_VERSION_CODE < KERNEL_VERSION(4, 20, 0) */
+/* ethtool_ops::get_settings */
+static int vboxNetAdpEthGetSettings(struct net_device *pNetDev, struct ethtool_cmd *cmd)
+{
+    cmd->supported      = 0;
+    cmd->advertising    = 0;
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)
+    ethtool_cmd_speed_set(cmd, SPEED_10);
+#else
+    cmd->speed          = SPEED_10;
+#endif
+    cmd->duplex         = DUPLEX_FULL;
+    cmd->port           = PORT_TP;
+    cmd->phy_address    = 0;
+    cmd->transceiver    = XCVR_INTERNAL;
+    cmd->autoneg        = AUTONEG_DISABLE;
+    cmd->maxtxpkt       = 0;
+    cmd->maxrxpkt       = 0;
+    return 0;
+}
+#endif /* LINUX_VERSION_CODE < KERNEL_VERSION(4, 20, 0) */
+
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 29)
+static const struct net_device_ops vboxNetAdpNetdevOps = {
+    .ndo_open               = vboxNetAdpLinuxOpen,
+    .ndo_stop               = vboxNetAdpLinuxStop,
+    .ndo_start_xmit         = vboxNetAdpLinuxXmit,
+    .ndo_get_stats          = vboxNetAdpLinuxGetStats
+};
+#endif
+
+static void vboxNetAdpNetDevInit(struct net_device *pNetDev)
+{
+    PVBOXNETADPPRIV pPriv;
+
+    ether_setup(pNetDev);
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 29)
+    pNetDev->netdev_ops = &vboxNetAdpNetdevOps;
+#else /* LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 29) */
+    pNetDev->open = vboxNetAdpLinuxOpen;
+    pNetDev->stop = vboxNetAdpLinuxStop;
+    pNetDev->hard_start_xmit = vboxNetAdpLinuxXmit;
+    pNetDev->get_stats = vboxNetAdpLinuxGetStats;
+#endif /* LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 29) */
+
+    pNetDev->ethtool_ops = &gEthToolOpsVBoxNetAdp;
+
+    pPriv = netdev_priv(pNetDev);
+    memset(pPriv, 0, sizeof(*pPriv));
+}
+
+
+int vboxNetAdpOsCreate(PVBOXNETADP pThis, PCRTMAC pMACAddress)
+{
+    int rc = VINF_SUCCESS;
+    struct net_device *pNetDev;
+
+    /* No need for private data. */
+    pNetDev = alloc_netdev(sizeof(VBOXNETADPPRIV),
+                           pThis->szName[0] ? pThis->szName : VBOXNETADP_LINUX_NAME,
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 17, 0)
+                           NET_NAME_UNKNOWN,
+#endif
+                           vboxNetAdpNetDevInit);
+    if (pNetDev)
+    {
+        int err;
+
+        if (pNetDev->dev_addr)
+        {
+            memcpy(pNetDev->dev_addr, pMACAddress, ETH_ALEN);
+            Log2(("vboxNetAdpOsCreate: pNetDev->dev_addr = %.6Rhxd\n", pNetDev->dev_addr));
+
+            /*
+             * We treat presence of VBoxNetFlt filter as our "carrier",
+             * see vboxNetFltSetLinkState().
+             *
+             * operstates.txt: "On device allocation, networking core
+             * sets the flags equivalent to netif_carrier_ok() and
+             * !netif_dormant()" - so turn carrier off here.
+             */
+            netif_carrier_off(pNetDev);
+
+            err = register_netdev(pNetDev);
+            if (!err)
+            {
+                strncpy(pThis->szName, pNetDev->name, sizeof(pThis->szName));
+                pThis->szName[sizeof(pThis->szName) - 1] = '\0';
+                pThis->u.s.pNetDev = pNetDev;
+                Log2(("vboxNetAdpOsCreate: pThis=%p pThis->szName = %p\n", pThis, pThis->szName));
+                return VINF_SUCCESS;
+            }
+        }
+        else
+        {
+            LogRel(("VBoxNetAdp: failed to set MAC address (dev->dev_addr == NULL)\n"));
+            err = EFAULT;
+        }
+        free_netdev(pNetDev);
+        rc = RTErrConvertFromErrno(err);
+    }
+    return rc;
+}
+
+void vboxNetAdpOsDestroy(PVBOXNETADP pThis)
+{
+    struct net_device *pNetDev = pThis->u.s.pNetDev;
+    AssertPtr(pThis->u.s.pNetDev);
+
+    pThis->u.s.pNetDev = NULL;
+    unregister_netdev(pNetDev);
+    free_netdev(pNetDev);
+}
+
+/**
+ * Device open. Called on open /dev/vboxnetctl
+ *
+ * @param   pInode      Pointer to inode info structure.
+ * @param   pFilp       Associated file pointer.
+ */
+static int VBoxNetAdpLinuxOpen(struct inode *pInode, struct file *pFilp)
+{
+    Log(("VBoxNetAdpLinuxOpen: pid=%d/%d %s\n", RTProcSelf(), current->pid, current->comm));
+
+#ifdef VBOX_WITH_HARDENING
+    /*
+     * Only root is allowed to access the device, enforce it!
+     */
+    if (!capable(CAP_SYS_ADMIN))
+    {
+        Log(("VBoxNetAdpLinuxOpen: admin privileges required!\n"));
+        return -EPERM;
+    }
+#endif
+
+    return 0;
+}
+
+
+/**
+ * Close device.
+ *
+ * @param   pInode      Pointer to inode info structure.
+ * @param   pFilp       Associated file pointer.
+ */
+static int VBoxNetAdpLinuxClose(struct inode *pInode, struct file *pFilp)
+{
+    Log(("VBoxNetAdpLinuxClose: pid=%d/%d %s\n",
+         RTProcSelf(), current->pid, current->comm));
+    pFilp->private_data = NULL;
+    return 0;
+}
+
+/**
+ * Device I/O Control entry point.
+ *
+ * @param   pFilp       Associated file pointer.
+ * @param   uCmd        The function specified to ioctl().
+ * @param   ulArg       The argument specified to ioctl().
+ */
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 36)
+static int VBoxNetAdpLinuxIOCtl(struct inode *pInode, struct file *pFilp,
+                                unsigned int uCmd, unsigned long ulArg)
+#else /* LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 36) */
+static long VBoxNetAdpLinuxIOCtlUnlocked(struct file *pFilp,
+                                         unsigned int uCmd, unsigned long ulArg)
+#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 36) */
+{
+    VBOXNETADPREQ Req;
+    PVBOXNETADP pAdp;
+    int rc;
+    char *pszName = NULL;
+
+    Log(("VBoxNetAdpLinuxIOCtl: param len %#x; uCmd=%#x; add=%#x\n", _IOC_SIZE(uCmd), uCmd, VBOXNETADP_CTL_ADD));
+    if (RT_UNLIKELY(_IOC_SIZE(uCmd) != sizeof(Req))) /* paranoia */
+    {
+        Log(("VBoxNetAdpLinuxIOCtl: bad ioctl sizeof(Req)=%#x _IOC_SIZE=%#x; uCmd=%#x.\n", sizeof(Req), _IOC_SIZE(uCmd), uCmd));
+        return -EINVAL;
+    }
+
+    switch (uCmd)
+    {
+        case VBOXNETADP_CTL_ADD:
+            Log(("VBoxNetAdpLinuxIOCtl: _IOC_DIR(uCmd)=%#x; IOC_OUT=%#x\n", _IOC_DIR(uCmd), IOC_OUT));
+            if (RT_UNLIKELY(copy_from_user(&Req, (void *)ulArg, sizeof(Req))))
+            {
+                Log(("VBoxNetAdpLinuxIOCtl: copy_from_user(,%#lx,) failed; uCmd=%#x.\n", ulArg, uCmd));
+                return -EFAULT;
+            }
+            Log(("VBoxNetAdpLinuxIOCtl: Add %s\n", Req.szName));
+
+            if (Req.szName[0])
+            {
+                pAdp = vboxNetAdpFindByName(Req.szName);
+                if (pAdp)
+                {
+                    Log(("VBoxNetAdpLinuxIOCtl: '%s' already exists\n", Req.szName));
+                    return -EINVAL;
+                }
+                pszName = Req.szName;
+            }
+            rc = vboxNetAdpCreate(&pAdp, pszName);
+            if (RT_FAILURE(rc))
+            {
+                Log(("VBoxNetAdpLinuxIOCtl: vboxNetAdpCreate -> %Rrc\n", rc));
+                return -(rc == VERR_OUT_OF_RESOURCES ? ENOMEM : EINVAL);
+            }
+
+            Assert(strlen(pAdp->szName) < sizeof(Req.szName));
+            strncpy(Req.szName, pAdp->szName, sizeof(Req.szName) - 1);
+            Req.szName[sizeof(Req.szName) - 1] = '\0';
+
+            if (RT_UNLIKELY(copy_to_user((void *)ulArg, &Req, sizeof(Req))))
+            {
+                /* this is really bad! */
+                /** @todo remove the adapter again? */
+                printk(KERN_ERR "VBoxNetAdpLinuxIOCtl: copy_to_user(%#lx,,%#zx); uCmd=%#x!\n", ulArg, sizeof(Req), uCmd);
+                return -EFAULT;
+            }
+            Log(("VBoxNetAdpLinuxIOCtl: Successfully added '%s'\n", Req.szName));
+            break;
+
+        case VBOXNETADP_CTL_REMOVE:
+            if (RT_UNLIKELY(copy_from_user(&Req, (void *)ulArg, sizeof(Req))))
+            {
+                Log(("VBoxNetAdpLinuxIOCtl: copy_from_user(,%#lx,) failed; uCmd=%#x.\n", ulArg, uCmd));
+                return -EFAULT;
+            }
+            Log(("VBoxNetAdpLinuxIOCtl: Remove %s\n", Req.szName));
+
+            pAdp = vboxNetAdpFindByName(Req.szName);
+            if (!pAdp)
+            {
+                Log(("VBoxNetAdpLinuxIOCtl: '%s' not found\n", Req.szName));
+                return -EINVAL;
+            }
+
+            rc = vboxNetAdpDestroy(pAdp);
+            if (RT_FAILURE(rc))
+            {
+                Log(("VBoxNetAdpLinuxIOCtl: vboxNetAdpDestroy('%s') -> %Rrc\n", Req.szName, rc));
+                return -EINVAL;
+            }
+            Log(("VBoxNetAdpLinuxIOCtl: Successfully removed '%s'\n", Req.szName));
+            break;
+
+        default:
+            printk(KERN_ERR "VBoxNetAdpLinuxIOCtl: unknown command %x.\n", uCmd);
+            return -EINVAL;
+    }
+
+    return 0;
+}
+
+int  vboxNetAdpOsInit(PVBOXNETADP pThis)
+{
+    /*
+     * Init linux-specific members.
+     */
+    pThis->u.s.pNetDev = NULL;
+
+    return VINF_SUCCESS;
+}
+
+
+
+/**
+ * Initialize module.
+ *
+ * @returns appropriate status code.
+ */
+static int __init VBoxNetAdpLinuxInit(void)
+{
+    int rc;
+    /*
+     * Initialize IPRT.
+     */
+    rc = RTR0Init(0);
+    if (RT_SUCCESS(rc))
+    {
+        Log(("VBoxNetAdpLinuxInit\n"));
+
+        rc = vboxNetAdpInit();
+        if (RT_SUCCESS(rc))
+        {
+            rc = misc_register(&g_CtlDev);
+            if (rc)
+            {
+                printk(KERN_ERR "VBoxNetAdp: Can't register " VBOXNETADP_CTL_DEV_NAME " device! rc=%d\n", rc);
+                return rc;
+            }
+            LogRel(("VBoxNetAdp: Successfully started.\n"));
+            return 0;
+        }
+        else
+            LogRel(("VBoxNetAdp: failed to register vboxnet0 device (rc=%d)\n", rc));
+    }
+    else
+        LogRel(("VBoxNetAdp: failed to initialize IPRT (rc=%d)\n", rc));
+
+    return -RTErrConvertToErrno(rc);
+}
+
+
+/**
+ * Unload the module.
+ *
+ * @todo We have to prevent this if we're busy!
+ */
+static void __exit VBoxNetAdpLinuxUnload(void)
+{
+    Log(("VBoxNetAdpLinuxUnload\n"));
+
+    /*
+     * Undo the work done during start (in reverse order).
+     */
+
+    vboxNetAdpShutdown();
+    /* Remove control device */
+    misc_deregister(&g_CtlDev);
+
+    RTR0Term();
+
+    Log(("VBoxNetAdpLinuxUnload - done\n"));
+}
+