Add CAP VFS module from Monyo. Primary purpose of this module is to provide CAP-compatible encoded file names for CJKV

(This used to be commit e8a5a962ed2218144cbb9c593d8e996c7d034b0c)

1 files changed, 453 insertions, 0 deletions

diff --git a/source3/modules/vfs_cap.c b/source3/modules/vfs_cap.c
new file mode 100644
index 0000000000..a8a7fa487d
--- /dev/null
+++ b/source3/modules/vfs_cap.c
@@ -0,0 +1,453 @@
+/* 
+ * CAP VFS module for Samba 3.x Version 0.3
+ *
+ * Copyright (C) Tim Potter, 1999-2000
+ * Copyright (C) Alexander Bokovoy, 2002-2003
+ * Copyright (C) Stefan (metze) Metzmacher, 2003
+ * Copyright (C) TAKAHASHI Motonobu (monyo), 2003
+ *
+ * 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; either version 2 of the License, or
+ * (at your option) any later version.
+ *  
+ * 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, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+
+#include "includes.h"
+
+/* cap functions */
+static char *capencode(char *to, const char *from);
+static char *capdecode(char *to, const char *from);
+
+static SMB_BIG_UINT skel_disk_free(vfs_handle_struct *handle, connection_struct *conn, const char *path,
+	BOOL small_query, SMB_BIG_UINT *bsize,
+	SMB_BIG_UINT *dfree, SMB_BIG_UINT *dsize)
+{
+        pstring cappath;
+        capencode(cappath, path);
+	return SMB_VFS_NEXT_DISK_FREE(handle, conn, cappath, small_query, bsize, 
+					 dfree, dsize);
+}
+
+static int skel_set_quota(vfs_handle_struct *handle, connection_struct *conn, enum SMB_QUOTA_TYPE qtype, unid_t id, SMB_DISK_QUOTA *dq)
+{
+	return SMB_VFS_NEXT_SET_QUOTA(handle, conn, qtype, id, dq);
+}
+
+static DIR *cap_opendir(vfs_handle_struct *handle, connection_struct *conn, const char *fname)
+{
+        pstring capname;
+        capencode(capname, fname);
+	return SMB_VFS_NEXT_OPENDIR(handle, conn, capname);
+}
+
+static struct dirent *cap_readdir(vfs_handle_struct *handle, connection_struct *conn, DIR *dirp)
+{
+        struct dirent *result;
+	DEBUG(3,("cap: cap_readdir\n"));
+	result = SMB_VFS_NEXT_READDIR(handle, conn, dirp);
+	if (result) {
+	  DEBUG(3,("cap: cap_readdir: %s\n", result->d_name));
+	  capdecode(result->d_name, result->d_name);
+        }
+        return result;
+}
+
+static int cap_mkdir(vfs_handle_struct *handle, connection_struct *conn, const char *path, mode_t mode)
+{
+  pstring cappath;
+  capencode(cappath, path);
+  return SMB_VFS_NEXT_MKDIR(handle, conn, cappath, mode);
+}
+
+static int cap_rmdir(vfs_handle_struct *handle, connection_struct *conn, const char *path)
+{
+        pstring cappath;
+        capencode(cappath, path);
+	return SMB_VFS_NEXT_RMDIR(handle, conn, cappath);
+}
+
+static int cap_open(vfs_handle_struct *handle, connection_struct *conn, const char *fname, int flags, mode_t mode)
+{
+        pstring capname;
+	DEBUG(3,("cap: cap_open for %s\n", fname));
+	capencode(capname, fname);
+	return SMB_VFS_NEXT_OPEN(handle, conn, capname, flags, mode);
+}
+
+static int cap_rename(vfs_handle_struct *handle, connection_struct *conn, const char *old, const char *new)
+{
+	pstring capold, capnew;
+	capencode(capold, old);
+	capencode(capnew, new);
+
+	return SMB_VFS_NEXT_RENAME(handle, conn, capold, capnew);
+}
+
+static int cap_stat(vfs_handle_struct *handle, connection_struct *conn, const char *fname, SMB_STRUCT_STAT *sbuf)
+{
+        pstring capname;
+	capencode(capname, fname);
+	return SMB_VFS_NEXT_STAT(handle, conn, capname, sbuf);
+}
+
+static int skel_lstat(vfs_handle_struct *handle, connection_struct *conn, const char *path, SMB_STRUCT_STAT *sbuf)
+{
+	pstring cappath;
+	capencode(cappath, path);
+	return SMB_VFS_NEXT_LSTAT(handle, conn, cappath, sbuf);
+}
+
+static int skel_unlink(vfs_handle_struct *handle, connection_struct *conn, const char *path)
+{
+	pstring cappath;
+	capencode(cappath, path);
+	return SMB_VFS_NEXT_UNLINK(handle, conn, cappath);
+}
+
+static int cap_chmod(vfs_handle_struct *handle, connection_struct *conn, const char *path, mode_t mode)
+{
+        pstring cappath;
+	capencode(cappath, path);
+	return SMB_VFS_NEXT_CHMOD(handle, conn, cappath, mode);
+}
+
+static int cap_chown(vfs_handle_struct *handle, connection_struct *conn, const char *path, uid_t uid, gid_t gid)
+{
+        pstring cappath;
+	capencode(cappath, path);
+	return SMB_VFS_NEXT_CHOWN(handle, conn, cappath, uid, gid);
+}
+
+static int cap_chdir(vfs_handle_struct *handle, connection_struct *conn, const char *path)
+{
+        pstring cappath;
+	DEBUG(3,("cap: cap_chdir for %s\n", path));
+	capencode(cappath, path);
+	return SMB_VFS_NEXT_CHDIR(handle, conn, cappath);
+}
+
+static int skel_utime(vfs_handle_struct *handle, connection_struct *conn, const char *path, struct utimbuf *times)
+{
+        pstring cappath;
+	capencode(cappath, path);
+	return SMB_VFS_NEXT_UTIME(handle, conn, cappath, times);
+}
+
+
+static BOOL skel_symlink(vfs_handle_struct *handle, connection_struct *conn, const char *oldpath, const char *newpath)
+{
+        pstring capoldpath, capnewpath;
+        capencode(capoldpath, oldpath);
+        capencode(capnewpath, newpath);
+	return SMB_VFS_NEXT_SYMLINK(handle, conn, capoldpath, capnewpath);
+}
+
+static BOOL skel_readlink(vfs_handle_struct *handle, connection_struct *conn, const char *path, char *buf, size_t bufsiz)
+{
+        pstring cappath;
+	capencode(cappath, path);
+	return SMB_VFS_NEXT_READLINK(handle, conn, cappath, buf, bufsiz);
+}
+
+static int skel_link(vfs_handle_struct *handle, connection_struct *conn, const char *oldpath, const char *newpath)
+{
+        pstring capoldpath, capnewpath;
+        capencode(capoldpath, oldpath);
+        capencode(capnewpath, newpath);
+	return SMB_VFS_NEXT_LINK(handle, conn, capoldpath, capnewpath);
+}
+
+static int skel_mknod(vfs_handle_struct *handle, connection_struct *conn, const char *path, mode_t mode, SMB_DEV_T dev)
+{
+        pstring cappath;
+	capencode(cappath, path);
+	return SMB_VFS_NEXT_MKNOD(handle, conn, cappath, mode, dev);
+}
+
+static char *skel_realpath(vfs_handle_struct *handle, connection_struct *conn, const char *path, char *resolved_path)
+{
+        /* monyo need capencode'ed and capdecode'ed? */
+        pstring cappath;
+	capencode(cappath, path);
+	return SMB_VFS_NEXT_REALPATH(handle, conn, path, resolved_path);
+}
+
+static BOOL skel_set_nt_acl(vfs_handle_struct *handle, files_struct *fsp, const char *name, uint32 security_info_sent, struct security_descriptor_info *psd)
+{
+        pstring capname;
+	capencode(capname, name);
+	return SMB_VFS_NEXT_SET_NT_ACL(handle, fsp, capname, security_info_sent, psd);
+}
+
+static int skel_chmod_acl(vfs_handle_struct *handle, connection_struct *conn, const char *name, mode_t mode)
+{
+        pstring capname;
+	capencode(capname, name);
+
+	/* If the underlying VFS doesn't have ACL support... */
+	if (!handle->vfs_next.ops.chmod_acl) {
+		errno = ENOSYS;
+		return -1;
+	}
+	return SMB_VFS_NEXT_CHMOD_ACL(handle, conn, capname, mode);
+}
+
+static SMB_ACL_T skel_sys_acl_get_file(vfs_handle_struct *handle, connection_struct *conn, const char *path_p, SMB_ACL_TYPE_T type)
+{
+        pstring cappath_p;
+	capencode(cappath_p, path_p);
+	return SMB_VFS_NEXT_SYS_ACL_GET_FILE(handle, conn, cappath_p, type);
+}
+
+static int skel_sys_acl_set_file(vfs_handle_struct *handle, connection_struct *conn, const char *name, SMB_ACL_TYPE_T acltype, SMB_ACL_T theacl)
+{
+        pstring capname;
+	capencode(capname, name);
+	return SMB_VFS_NEXT_SYS_ACL_SET_FILE(handle, conn, capname, acltype, theacl);
+}
+
+static int skel_sys_acl_delete_def_file(vfs_handle_struct *handle, connection_struct *conn, const char *path)
+{
+        pstring cappath;
+	capencode(cappath, path);
+	return SMB_VFS_NEXT_SYS_ACL_DELETE_DEF_FILE(handle, conn, cappath);
+}
+
+static ssize_t skel_getxattr(vfs_handle_struct *handle, struct connection_struct *conn,const char *path, const char *name, void *value, size_t size)
+{
+        pstring cappath, capname;
+	capencode(cappath, path);
+	capencode(capname, name);
+        return SMB_VFS_NEXT_GETXATTR(handle, conn, cappath, capname, value, size);
+}
+
+static ssize_t skel_lgetxattr(vfs_handle_struct *handle, struct connection_struct *conn,const char *path, const char *name, void *value, size_t
+size)
+{
+        pstring cappath, capname;
+	capencode(cappath, path);
+	capencode(capname, name);
+        return SMB_VFS_NEXT_LGETXATTR(handle, conn, cappath, capname, value, size);
+}
+
+static ssize_t skel_fgetxattr(vfs_handle_struct *handle, struct files_struct *fsp,int fd, const char *name, void *value, size_t size)
+{
+        pstring capname;
+	capencode(capname, name);
+        return SMB_VFS_NEXT_FGETXATTR(handle, fsp, fd, capname, value, size);
+}
+
+static ssize_t skel_listxattr(vfs_handle_struct *handle, struct connection_struct *conn,const char *path, char *list, size_t size)
+{
+        pstring cappath;
+	capencode(cappath, path);
+        return SMB_VFS_NEXT_LISTXATTR(handle, conn, cappath, list, size);
+}
+
+static ssize_t skel_llistxattr(vfs_handle_struct *handle, struct connection_struct *conn,const char *path, char *list, size_t size)
+{
+        pstring cappath;
+	capencode(cappath, path);
+        return SMB_VFS_NEXT_LLISTXATTR(handle, conn, cappath, list, size);
+}
+
+static int skel_removexattr(vfs_handle_struct *handle, struct connection_struct *conn,const char *path, const char *name)
+{
+        pstring cappath, capname;
+	capencode(cappath, path);
+	capencode(capname, name);
+        return SMB_VFS_NEXT_REMOVEXATTR(handle, conn, cappath, capname);
+}
+
+static int skel_lremovexattr(vfs_handle_struct *handle, struct connection_struct *conn,const char *path, const char *name)
+{
+        pstring cappath, capname;
+	capencode(cappath, path);
+	capencode(capname, name);
+        return SMB_VFS_NEXT_LREMOVEXATTR(handle, conn, cappath, capname);
+}
+
+static int skel_fremovexattr(vfs_handle_struct *handle, struct files_struct *fsp,int fd, const char *name)
+{
+        pstring capname;
+	capencode(capname, name);
+        return SMB_VFS_NEXT_FREMOVEXATTR(handle, fsp, fd, capname);
+}
+
+static int skel_setxattr(vfs_handle_struct *handle, struct connection_struct *conn,const char *path, const char *name, const void *value, size_t size, int flags)
+{
+        pstring cappath, capname;
+	capencode(cappath, path);
+	capencode(capname, name);
+        return SMB_VFS_NEXT_SETXATTR(handle, conn, cappath, capname, value, size, flags);
+}
+
+static int skel_lsetxattr(vfs_handle_struct *handle, struct connection_struct *conn,const char *path, const char *name, const void *value, size_t size, int flags)
+{
+        pstring cappath, capname;
+	capencode(cappath, path);
+	capencode(capname, name);
+        return SMB_VFS_NEXT_LSETXATTR(handle, conn, cappath, capname, value, size, flags);
+}
+
+static int skel_fsetxattr(vfs_handle_struct *handle, struct files_struct *fsp,int fd, const char *name, const void *value, size_t size, int flags)
+{
+        pstring capname;
+	capencode(capname, name);
+        return SMB_VFS_NEXT_FSETXATTR(handle, fsp, fd, capname, value, size, flags);
+}
+
+/* VFS operations structure */
+
+static vfs_op_tuple cap_op_tuples[] = {
+
+	/* Disk operations */
+
+	{SMB_VFS_OP(skel_disk_free),			SMB_VFS_OP_DISK_FREE,		SMB_VFS_LAYER_TRANSPARENT},
+	
+	/* Directory operations */
+
+	{SMB_VFS_OP(cap_opendir),			SMB_VFS_OP_OPENDIR,		SMB_VFS_LAYER_TRANSPARENT},
+	{SMB_VFS_OP(cap_readdir),			SMB_VFS_OP_READDIR,		SMB_VFS_LAYER_TRANSPARENT},
+	{SMB_VFS_OP(cap_mkdir),			SMB_VFS_OP_MKDIR,		SMB_VFS_LAYER_TRANSPARENT},
+	{SMB_VFS_OP(cap_rmdir),			SMB_VFS_OP_RMDIR,		SMB_VFS_LAYER_TRANSPARENT},
+
+	/* File operations */
+
+	{SMB_VFS_OP(cap_open),				SMB_VFS_OP_OPEN,		SMB_VFS_LAYER_TRANSPARENT},
+	{SMB_VFS_OP(cap_rename),			SMB_VFS_OP_RENAME,		SMB_VFS_LAYER_TRANSPARENT},
+	{SMB_VFS_OP(cap_stat),				SMB_VFS_OP_STAT,		SMB_VFS_LAYER_TRANSPARENT},
+	{SMB_VFS_OP(skel_lstat),			SMB_VFS_OP_LSTAT,		SMB_VFS_LAYER_TRANSPARENT},
+	{SMB_VFS_OP(skel_unlink),			SMB_VFS_OP_UNLINK,		SMB_VFS_LAYER_TRANSPARENT},
+	{SMB_VFS_OP(cap_chmod),			SMB_VFS_OP_CHMOD,		SMB_VFS_LAYER_TRANSPARENT},
+	{SMB_VFS_OP(cap_chown),			SMB_VFS_OP_CHOWN,		SMB_VFS_LAYER_TRANSPARENT},
+	{SMB_VFS_OP(cap_chdir),			SMB_VFS_OP_CHDIR,		SMB_VFS_LAYER_TRANSPARENT},
+	{SMB_VFS_OP(skel_utime),			SMB_VFS_OP_UTIME,		SMB_VFS_LAYER_TRANSPARENT},
+	{SMB_VFS_OP(skel_symlink),			SMB_VFS_OP_SYMLINK,		SMB_VFS_LAYER_TRANSPARENT},
+	{SMB_VFS_OP(skel_readlink),			SMB_VFS_OP_READLINK,		SMB_VFS_LAYER_TRANSPARENT},
+	{SMB_VFS_OP(skel_link),				SMB_VFS_OP_LINK,		SMB_VFS_LAYER_TRANSPARENT},
+	{SMB_VFS_OP(skel_mknod),			SMB_VFS_OP_MKNOD,		SMB_VFS_LAYER_TRANSPARENT},
+	{SMB_VFS_OP(skel_realpath),			SMB_VFS_OP_REALPATH,		SMB_VFS_LAYER_TRANSPARENT},
+
+	/* NT File ACL operations */
+
+	{SMB_VFS_OP(skel_set_nt_acl),			SMB_VFS_OP_SET_NT_ACL,		SMB_VFS_LAYER_TRANSPARENT},
+
+	/* POSIX ACL operations */
+
+	{SMB_VFS_OP(skel_chmod_acl),			SMB_VFS_OP_CHMOD_ACL,		SMB_VFS_LAYER_TRANSPARENT},
+
+	{SMB_VFS_OP(skel_sys_acl_get_file),		SMB_VFS_OP_SYS_ACL_GET_FILE,		SMB_VFS_LAYER_TRANSPARENT},
+	{SMB_VFS_OP(skel_sys_acl_set_file),		SMB_VFS_OP_SYS_ACL_SET_FILE,		SMB_VFS_LAYER_TRANSPARENT},
+	{SMB_VFS_OP(skel_sys_acl_delete_def_file),	SMB_VFS_OP_SYS_ACL_DELETE_DEF_FILE,	SMB_VFS_LAYER_TRANSPARENT},
+	
+	/* EA operations. */
+	{SMB_VFS_OP(skel_getxattr),			SMB_VFS_OP_GETXATTR,			SMB_VFS_LAYER_TRANSPARENT},
+	{SMB_VFS_OP(skel_lgetxattr),			SMB_VFS_OP_LGETXATTR,			SMB_VFS_LAYER_TRANSPARENT},
+	{SMB_VFS_OP(skel_fgetxattr),			SMB_VFS_OP_FGETXATTR,			SMB_VFS_LAYER_TRANSPARENT},
+	{SMB_VFS_OP(skel_listxattr),			SMB_VFS_OP_LISTXATTR,			SMB_VFS_LAYER_TRANSPARENT},
+	{SMB_VFS_OP(skel_llistxattr),			SMB_VFS_OP_LLISTXATTR,			SMB_VFS_LAYER_TRANSPARENT},
+	{SMB_VFS_OP(skel_removexattr),			SMB_VFS_OP_REMOVEXATTR,			SMB_VFS_LAYER_TRANSPARENT},
+	{SMB_VFS_OP(skel_lremovexattr),			SMB_VFS_OP_LREMOVEXATTR,		SMB_VFS_LAYER_TRANSPARENT},
+	{SMB_VFS_OP(skel_fremovexattr),			SMB_VFS_OP_FREMOVEXATTR,		SMB_VFS_LAYER_TRANSPARENT},
+	{SMB_VFS_OP(skel_setxattr),			SMB_VFS_OP_SETXATTR,			SMB_VFS_LAYER_TRANSPARENT},
+	{SMB_VFS_OP(skel_lsetxattr),			SMB_VFS_OP_LSETXATTR,			SMB_VFS_LAYER_TRANSPARENT},
+	{SMB_VFS_OP(skel_fsetxattr),			SMB_VFS_OP_FSETXATTR,			SMB_VFS_LAYER_TRANSPARENT},
+
+	{NULL,						SMB_VFS_OP_NOOP,			SMB_VFS_LAYER_NOOP}
+};
+
+NTSTATUS vfs_cap_init(void)
+{
+	return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "cap", cap_op_tuples);
+}
+
+/* For CAP functions */
+#define hex_tag ':'
+#define hex2bin(c)		hex2bin_table[(unsigned char)(c)]
+#define bin2hex(c)		bin2hex_table[(unsigned char)(c)]
+#define is_hex(s)		((s)[0] == hex_tag)
+
+static unsigned char hex2bin_table[256] = {
+0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x00 */
+0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x10 */
+0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x20 */
+0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 0, 0, 0, 0, 0, /* 0x30 */
+0000, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0000, /* 0x40 */
+0000, 0000, 0000, 0000, 0000, 0000, 0000, 0000,
+0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x50 */
+0000, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0000, /* 0x60 */
+0000, 0000, 0000, 0000, 0000, 0000, 0000, 0000,
+0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x70 */
+0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x80 */
+0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x90 */
+0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xa0 */
+0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xb0 */
+0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xc0 */
+0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xd0 */
+0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xe0 */
+0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0  /* 0xf0 */
+};
+static unsigned char bin2hex_table[256] = "0123456789abcdef";
+
+/*******************************************************************
+  original code -> ":xx"  - CAP format
+********************************************************************/
+static char *capencode(char *to, const char *from)
+{
+  pstring cvtbuf;
+  char *out;
+
+  if (to == from) {
+    from = pstrcpy ((char *) cvtbuf, from);
+  }
+
+  for (out = to; *from && (out - to < sizeof(pstring)-7);) {
+    /* buffer husoku error */
+    if ((unsigned char)*from >= 0x80) {
+      *out++ = hex_tag;
+      *out++ = bin2hex (((*from)>>4)&0x0f);
+      *out++ = bin2hex ((*from)&0x0f);
+      from++;
+    } 
+    else {
+      *out++ = *from++;
+    }
+  }
+  *out = '\0';
+  return to;
+}
+
+/*******************************************************************
+  CAP -> original code
+********************************************************************/
+/* ":xx" -> a byte */
+static char *capdecode(char *to, const char *from)
+{
+  pstring cvtbuf;
+  char *out;
+
+  if (to == from) {
+    from = pstrcpy ((char *) cvtbuf, from);
+  }
+  for (out = to; *from && (out - to < sizeof(pstring)-3);) {
+    if (is_hex(from)) {
+      *out++ = (hex2bin (from[1])<<4) | (hex2bin (from[2]));
+      from += 3;
+    } else {
+      *out++ = *from++;
+    }
+  }
+  *out = '\0';
+  return to;
+}