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, 181 insertions, 0 deletions

diff --git a/src/VBox/Additions/linux/sharedfolders/vfsmod.h b/src/VBox/Additions/linux/sharedfolders/vfsmod.h
new file mode 100644
index 00000000..f7b71831
--- /dev/null
+++ b/src/VBox/Additions/linux/sharedfolders/vfsmod.h
@@ -0,0 +1,181 @@
+/* $Id: vfsmod.h $ */
+/** @file
+ * vboxsf - Linux Shared Folders VFS, internal header.
+ */
+
+/*
+ * Copyright (C) 2006-2019 Oracle Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef GA_INCLUDED_SRC_linux_sharedfolders_vfsmod_h
+#define GA_INCLUDED_SRC_linux_sharedfolders_vfsmod_h
+#ifndef RT_WITHOUT_PRAGMA_ONCE
+# pragma once
+#endif
+
+#define LOG_GROUP LOG_GROUP_SHARED_FOLDERS
+#include "the-linux-kernel.h"
+#include <VBox/log.h>
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 0)
+# include <linux/backing-dev.h>
+#endif
+
+#include <VBox/VBoxGuestLibSharedFolders.h>
+#include "vbsfmount.h"
+
+#define DIR_BUFFER_SIZE (16*_1K)
+
+/* per-shared folder information */
+struct sf_glob_info {
+	VBGLSFMAP map;
+	struct nls_table *nls;
+	int ttl;
+	int uid;
+	int gid;
+	int dmode;
+	int fmode;
+	int dmask;
+	int fmask;
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 0)
+	struct backing_dev_info bdi;
+#endif
+	char tag[32];		/**< Mount tag for VBoxService automounter.  @since 6.0 */
+};
+
+/* per-inode information */
+struct sf_inode_info {
+	/* which file */
+	SHFLSTRING *path;
+	/* some information was changed, update data on next revalidate */
+	int force_restat;
+	/* directory content changed, update the whole directory on next sf_getdent */
+	int force_reread;
+	/* file structure, only valid between open() and release() */
+	struct file *file;
+	/* handle valid if a file was created with sf_create_aux until it will
+	 * be opened with sf_reg_open() */
+	SHFLHANDLE handle;
+};
+
+struct sf_dir_info {
+	struct list_head info_list;
+};
+
+struct sf_dir_buf {
+	size_t cEntries;
+	size_t cbFree;
+	size_t cbUsed;
+	void *buf;
+	struct list_head head;
+};
+
+struct sf_reg_info {
+	SHFLHANDLE handle;
+};
+
+/* globals */
+extern VBGLSFCLIENT client_handle;
+
+/* forward declarations */
+extern struct inode_operations sf_dir_iops;
+extern struct inode_operations sf_lnk_iops;
+extern struct inode_operations sf_reg_iops;
+extern struct file_operations sf_dir_fops;
+extern struct file_operations sf_reg_fops;
+extern struct dentry_operations sf_dentry_ops;
+extern struct address_space_operations sf_reg_aops;
+
+extern void sf_init_inode(struct sf_glob_info *sf_g, struct inode *inode,
+			  PSHFLFSOBJINFO info);
+extern int sf_stat(const char *caller, struct sf_glob_info *sf_g,
+		   SHFLSTRING * path, PSHFLFSOBJINFO result, int ok_to_fail);
+extern int sf_inode_revalidate(struct dentry *dentry);
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 0)
+# if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 11, 0)
+extern int sf_getattr(const struct path *path, struct kstat *kstat,
+		      u32 request_mask, unsigned int query_flags);
+# else
+extern int sf_getattr(struct vfsmount *mnt, struct dentry *dentry,
+		      struct kstat *kstat);
+# endif
+extern int sf_setattr(struct dentry *dentry, struct iattr *iattr);
+#endif
+extern int sf_path_from_dentry(const char *caller, struct sf_glob_info *sf_g,
+			       struct sf_inode_info *sf_i,
+			       struct dentry *dentry, SHFLSTRING ** result);
+extern int sf_nlscpy(struct sf_glob_info *sf_g, char *name,
+		     size_t name_bound_len, const unsigned char *utf8_name,
+		     size_t utf8_len);
+extern void sf_dir_info_free(struct sf_dir_info *p);
+extern void sf_dir_info_empty(struct sf_dir_info *p);
+extern struct sf_dir_info *sf_dir_info_alloc(void);
+extern int sf_dir_read_all(struct sf_glob_info *sf_g,
+			   struct sf_inode_info *sf_i, struct sf_dir_info *sf_d,
+			   SHFLHANDLE handle);
+extern int sf_init_backing_dev(struct sf_glob_info *sf_g);
+extern void sf_done_backing_dev(struct sf_glob_info *sf_g);
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 0)
+# define STRUCT_STATFS  struct statfs
+#else
+# define STRUCT_STATFS  struct kstatfs
+#endif
+int sf_get_volume_info(struct super_block *sb, STRUCT_STATFS * stat);
+
+#ifdef __cplusplus
+# define CMC_API __attribute__ ((cdecl, regparm (0)))
+#else
+# define CMC_API __attribute__ ((regparm (0)))
+#endif
+
+#define TRACE() LogFunc(("tracepoint\n"))
+
+/* Following casts are here to prevent assignment of void * to
+   pointers of arbitrary type */
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 0)
+# define GET_GLOB_INFO(sb)       ((struct sf_glob_info *) (sb)->u.generic_sbp)
+# define SET_GLOB_INFO(sb, sf_g) (sb)->u.generic_sbp = sf_g
+#else
+# define GET_GLOB_INFO(sb)       ((struct sf_glob_info *) (sb)->s_fs_info)
+# define SET_GLOB_INFO(sb, sf_g) (sb)->s_fs_info = sf_g
+#endif
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 19) || defined(KERNEL_FC6)
+/* FC6 kernel 2.6.18, vanilla kernel 2.6.19+ */
+# define GET_INODE_INFO(i)       ((struct sf_inode_info *) (i)->i_private)
+# define SET_INODE_INFO(i, sf_i) (i)->i_private = sf_i
+#else
+/* vanilla kernel up to 2.6.18 */
+# define GET_INODE_INFO(i)       ((struct sf_inode_info *) (i)->u.generic_ip)
+# define SET_INODE_INFO(i, sf_i) (i)->u.generic_ip = sf_i
+#endif
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 19, 0)
+# define GET_F_DENTRY(f)        (f->f_path.dentry)
+#else
+# define GET_F_DENTRY(f)        (f->f_dentry)
+#endif
+
+#endif /* !GA_INCLUDED_SRC_linux_sharedfolders_vfsmod_h */