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Diffstat (limited to 'src/VBox/Additions/freebsd/vboxvfs/vboxvfs_vfsops.c')
-rw-r--r--src/VBox/Additions/freebsd/vboxvfs/vboxvfs_vfsops.c268
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..43b9ec0b
--- /dev/null
+++ b/src/VBox/Additions/freebsd/vboxvfs/vboxvfs_vfsops.c
@@ -0,0 +1,268 @@
+/* $Id: vboxvfs_vfsops.c $ */
+/** @file
+ * Description.
+ */
+
+/*
+ * Copyright (C) 2008-2023 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;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-20 07:31:12 +0000