Adding upstream version 7.0.6-dfsg.upstream/7.0.6-dfsgupstream

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

1 files changed, 268 insertions, 0 deletions

diff --git a/src/VBox/Additions/freebsd/vboxvfs/vboxvfs_vfsops.c b/src/VBox/Additions/freebsd/vboxvfs/vboxvfs_vfsops.c
new file mode 100644
index 00000000..ff190c7e
--- /dev/null
+++ b/src/VBox/Additions/freebsd/vboxvfs/vboxvfs_vfsops.c
@@ -0,0 +1,268 @@
+/* $Id: vboxvfs_vfsops.c $ */
+/** @file
+ * Description.
+ */
+
+/*
+ * 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>.
+ *
+ * SPDX-License-Identifier: GPL-3.0-only
+ */
+
+#include "vboxvfs.h"
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/proc.h>
+#include <sys/bio.h>
+#include <sys/buf.h>
+#include <sys/kernel.h>
+#include <sys/sysctl.h>
+#include <sys/vnode.h>
+#include <sys/mount.h>
+#include <sys/stat.h>
+#include <sys/malloc.h>
+#include <sys/module.h>
+
+#include <iprt/mem.h>
+
+#define VFSMP2SFGLOBINFO(mp) ((struct sf_glob_info *)mp->mnt_data)
+
+static int vboxvfs_version = VBOXVFS_VERSION;
+
+SYSCTL_NODE(_vfs, OID_AUTO, vboxvfs, CTLFLAG_RW, 0, "VirtualBox shared filesystem");
+SYSCTL_INT(_vfs_vboxvfs, OID_AUTO, version, CTLFLAG_RD, &vboxvfs_version, 0, "");
+
+/* global connection to the host service. */
+static VBGLSFCLIENT g_vboxSFClient;
+
+static vfs_init_t       vboxvfs_init;
+static vfs_uninit_t     vboxvfs_uninit;
+static vfs_cmount_t     vboxvfs_cmount;
+static vfs_mount_t      vboxvfs_mount;
+static vfs_root_t       vboxvfs_root;
+static vfs_quotactl_t   vboxvfs_quotactl;
+static vfs_statfs_t     vboxvfs_statfs;
+static vfs_unmount_t    vboxvfs_unmount;
+
+static struct vfsops vboxvfs_vfsops = {
+    .vfs_init     =    vboxvfs_init,
+    .vfs_cmount   =    vboxvfs_cmount,
+    .vfs_mount    =    vboxvfs_mount,
+    .vfs_quotactl =    vboxvfs_quotactl,
+    .vfs_root     =    vboxvfs_root,
+    .vfs_statfs   =    vboxvfs_statfs,
+    .vfs_sync     =    vfs_stdsync,
+    .vfs_uninit   =    vboxvfs_uninit,
+    .vfs_unmount  =    vboxvfs_unmount,
+};
+
+
+VFS_SET(vboxvfs_vfsops, vboxvfs, VFCF_NETWORK);
+MODULE_DEPEND(vboxvfs, vboxguest, 1, 1, 1);
+
+static int vboxvfs_cmount(struct mntarg *ma, void * data, int flags, struct thread *td)
+{
+    struct vboxvfs_mount_info args;
+    int rc = 0;
+
+    printf("%s: Enter\n", __FUNCTION__);
+
+    rc = copyin(data, &args, sizeof(struct vboxvfs_mount_info));
+    if (rc)
+        return rc;
+
+    ma = mount_argf(ma, "uid", "%d", args.uid);
+    ma = mount_argf(ma, "gid", "%d", args.gid);
+    ma = mount_arg(ma, "from", args.name, -1);
+
+    rc = kernel_mount(ma, flags);
+
+    printf("%s: Leave rc=%d\n", __FUNCTION__, rc);
+
+    return rc;
+}
+
+static const char *vboxvfs_opts[] = {
+    "uid", "gid", "from", "fstype", "fspath", "errmsg", NULL
+};
+
+static int vboxvfs_mount(struct mount *mp, struct thread *td)
+{
+    int rc;
+    char *pszShare;
+    int  cbShare, cbOption;
+    int uid = 0, gid = 0;
+    struct sf_glob_info *pShFlGlobalInfo;
+    SHFLSTRING *pShFlShareName = NULL;
+    int cbShFlShareName;
+
+    printf("%s: Enter\n", __FUNCTION__);
+
+    if (mp->mnt_flag & (MNT_UPDATE | MNT_ROOTFS))
+        return EOPNOTSUPP;
+
+    if (vfs_filteropt(mp->mnt_optnew, vboxvfs_opts))
+    {
+        vfs_mount_error(mp, "%s", "Invalid option");
+        return EINVAL;
+    }
+
+    rc = vfs_getopt(mp->mnt_optnew, "from", (void **)&pszShare, &cbShare);
+    if (rc || pszShare[cbShare-1] != '\0' || cbShare > 0xfffe)
+        return EINVAL;
+
+    rc = vfs_getopt(mp->mnt_optnew, "gid", (void **)&gid, &cbOption);
+    if ((rc != ENOENT) && (rc || cbOption != sizeof(gid)))
+        return EINVAL;
+
+    rc = vfs_getopt(mp->mnt_optnew, "uid", (void **)&uid, &cbOption);
+    if ((rc != ENOENT) && (rc || cbOption != sizeof(uid)))
+        return EINVAL;
+
+    pShFlGlobalInfo = RTMemAllocZ(sizeof(struct sf_glob_info));
+    if (!pShFlGlobalInfo)
+        return ENOMEM;
+
+    cbShFlShareName = offsetof (SHFLSTRING, String.utf8) + cbShare + 1;
+    pShFlShareName  = RTMemAllocZ(cbShFlShareName);
+    if (!pShFlShareName)
+        return VERR_NO_MEMORY;
+
+    pShFlShareName->u16Length = cbShare;
+    pShFlShareName->u16Size   = cbShare + 1;
+    memcpy (pShFlShareName->String.utf8, pszShare, cbShare + 1);
+
+    rc = VbglR0SfMapFolder (&g_vboxSFClient, pShFlShareName, &pShFlGlobalInfo->map);
+    RTMemFree(pShFlShareName);
+
+    if (RT_FAILURE (rc))
+    {
+        RTMemFree(pShFlGlobalInfo);
+        printf("VbglR0SfMapFolder failed rc=%d\n", rc);
+        return EPROTO;
+    }
+
+    pShFlGlobalInfo->uid = uid;
+    pShFlGlobalInfo->gid = gid;
+
+    mp->mnt_data = pShFlGlobalInfo;
+
+    /** @todo root vnode. */
+
+    vfs_getnewfsid(mp);
+    vfs_mountedfrom(mp, pszShare);
+
+    printf("%s: Leave rc=0\n", __FUNCTION__);
+
+    return 0;
+}
+
+static int vboxvfs_unmount(struct mount *mp, int mntflags, struct thread *td)
+{
+    struct sf_glob_info *pShFlGlobalInfo = VFSMP2SFGLOBINFO(mp);
+    int rc;
+    int flags = 0;
+
+    rc = VbglR0SfUnmapFolder(&g_vboxSFClient, &pShFlGlobalInfo->map);
+    if (RT_FAILURE(rc))
+        printf("Failed to unmap shared folder\n");
+
+    if (mntflags & MNT_FORCE)
+        flags |= FORCECLOSE;
+
+    /* There is 1 extra root vnode reference (vnode_root). */
+    rc = vflush(mp, 1, flags, td);
+    if (rc)
+        return rc;
+
+
+    RTMemFree(pShFlGlobalInfo);
+    mp->mnt_data = NULL;
+
+    return 0;
+}
+
+static int vboxvfs_root(struct mount *mp, int flags, struct vnode **vpp, struct thread *td)
+{
+    int rc = 0;
+    struct sf_glob_info *pShFlGlobalInfo = VFSMP2SFGLOBINFO(mp);
+    struct vnode *vp;
+
+    printf("%s: Enter\n", __FUNCTION__);
+
+    vp = pShFlGlobalInfo->vnode_root;
+    VREF(vp);
+
+    vn_lock(vp, flags | LK_RETRY, td);
+    *vpp = vp;
+
+    printf("%s: Leave\n", __FUNCTION__);
+
+    return rc;
+}
+
+static int vboxvfs_quotactl(struct mount *mp, int cmd, uid_t uid, void *arg, struct thread *td)
+{
+    return EOPNOTSUPP;
+}
+
+int vboxvfs_init(struct vfsconf *vfsp)
+{
+    int rc;
+
+    /* Initialize the R0 guest library. */
+    rc = VbglR0SfInit();
+    if (RT_FAILURE(rc))
+        return ENXIO;
+
+    /* Connect to the host service. */
+    rc = VbglR0SfConnect(&g_vboxSFClient);
+    if (RT_FAILURE(rc))
+    {
+        printf("Failed to get connection to host! rc=%d\n", rc);
+        VbglR0SfTerm();
+        return ENXIO;
+    }
+
+    rc = VbglR0SfSetUtf8(&g_vboxSFClient);
+    if (RT_FAILURE (rc))
+    {
+        printf("VbglR0SfSetUtf8 failed, rc=%d\n", rc);
+        VbglR0SfDisconnect(&g_vboxSFClient);
+        VbglR0SfTerm();
+        return EPROTO;
+    }
+
+    printf("Successfully loaded shared folder module\n");
+
+    return 0;
+}
+
+int vboxvfs_uninit(struct vfsconf *vfsp)
+{
+    VbglR0SfDisconnect(&g_vboxSFClient);
+    VbglR0SfTerm();
+
+    return 0;
+}
+
+int vboxvfs_statfs(struct mount *mp, struct statfs *sbp, struct thread *td)
+{
+    return 0;
+}