r3642: Extend vfs to add seekdir/telldir/rewinddir. Yes I know I have to

fix the modules too... First step in fixing out large directories
problem.
Jeremy.
(This used to be commit 344e9dd33a936b429fefb67cd748ac009a1bab10)

8 files changed, 143 insertions, 17 deletions

diff --git a/source3/include/smbprofile.h b/source3/include/smbprofile.h
index e494faf7da..ed6fce9a6d 100644
--- a/source3/include/smbprofile.h
+++ b/source3/include/smbprofile.h
@@ -34,7 +34,7 @@ enum flush_reason_enum { SEEK_FLUSH, READ_FLUSH, WRITE_FLUSH, READRAW_FLUSH,
 
 #define PROF_SHMEM_KEY ((key_t)0x07021999)
 #define PROF_SHM_MAGIC 0x6349985
-#define PROF_SHM_VERSION 9
+#define PROF_SHM_VERSION 10
 
 /* time values in the following structure are in microseconds */
 
@@ -47,6 +47,12 @@ struct profile_stats {
 	unsigned syscall_opendir_time;
 	unsigned syscall_readdir_count;
 	unsigned syscall_readdir_time;
+	unsigned syscall_seekdir_count;
+	unsigned syscall_seekdir_time;
+	unsigned syscall_telldir_count;
+	unsigned syscall_telldir_time;
+	unsigned syscall_rewinddir_count;
+	unsigned syscall_rewinddir_time;
 	unsigned syscall_mkdir_count;
 	unsigned syscall_mkdir_time;
 	unsigned syscall_rmdir_count;
diff --git a/source3/include/trans2.h b/source3/include/trans2.h
index 3106cd092a..37b3cb24b1 100644
--- a/source3/include/trans2.h
+++ b/source3/include/trans2.h
@@ -329,6 +329,13 @@ Byte offset   Type     name                description
 #define SMB_FS_FULL_SIZE_INFORMATION			1007
 #define SMB_FS_OBJECTID_INFORMATION			1008
 
+/* flags on trans2 findfirst/findnext that control search */
+#define FLAG_TRANS2_FIND_CLOSE          0x1
+#define FLAG_TRANS2_FIND_CLOSE_IF_END   0x2
+#define FLAG_TRANS2_FIND_REQUIRE_RESUME 0x4
+#define FLAG_TRANS2_FIND_CONTINUE       0x8
+#define FLAG_TRANS2_FIND_BACKUP_INTENT  0x10
+
 /* UNIX CIFS Extensions - created by HP */
 /*
  * UNIX CIFS Extensions have the range 0x200 - 0x2FF reserved.
diff --git a/source3/include/vfs.h b/source3/include/vfs.h
index db766b985d..babf18ec81 100644
--- a/source3/include/vfs.h
+++ b/source3/include/vfs.h
@@ -1,7 +1,7 @@
 /* 
    Unix SMB/CIFS implementation.
    VFS structures and parameters
-   Copyright (C) Jeremy Allison                         1999-2003
+   Copyright (C) Jeremy Allison                         1999-2004
    Copyright (C) Tim Potter				1999
    Copyright (C) Alexander Bokovoy			2002
    Copyright (C) Stefan (metze) Metzmacher		2003
@@ -55,7 +55,8 @@
 /* Changed to version 8 includes EA calls. JRA. */
 /* Changed to version 9 to include the get_shadow_data call. --metze */
 /* Changed to version 10 to include pread/pwrite calls. */
-#define SMB_VFS_INTERFACE_VERSION 10
+/* Changed to version 11 to include seekdir/telldir/rewinddir calls. JRA */
+#define SMB_VFS_INTERFACE_VERSION 11
 
 
 /* to bug old modules witch are trying to compile with the old functions */
@@ -102,6 +103,9 @@ typedef enum _vfs_op_type {
 
 	SMB_VFS_OP_OPENDIR,
 	SMB_VFS_OP_READDIR,
+	SMB_VFS_OP_SEEKDIR,
+	SMB_VFS_OP_TELLDIR,
+	SMB_VFS_OP_REWINDDIR,
 	SMB_VFS_OP_MKDIR,
 	SMB_VFS_OP_RMDIR,
 	SMB_VFS_OP_CLOSEDIR,
@@ -209,7 +213,10 @@ struct vfs_ops {
 		/* Directory operations */
 		
 		DIR *(*opendir)(struct vfs_handle_struct *handle, struct connection_struct *conn, const char *fname);
-		struct dirent *(*readdir)(struct vfs_handle_struct *handle, struct connection_struct *conn, DIR *dirp);
+		SMB_STRUCT_DIRENT *(*readdir)(struct vfs_handle_struct *handle, struct connection_struct *conn, DIR *dirp);
+		void (*seekdir)(struct vfs_handle_struct *handle, struct connection_struct *conn, DIR *dirp, long offset);
+		long (*telldir)(struct vfs_handle_struct *handle, struct connection_struct *conn, DIR *dirp);
+		void (*rewinddir)(struct vfs_handle_struct *handle, struct connection_struct *conn, DIR *dirp);
 		int (*mkdir)(struct vfs_handle_struct *handle, struct connection_struct *conn, const char *path, mode_t mode);
 		int (*rmdir)(struct vfs_handle_struct *handle, struct connection_struct *conn, const char *path);
 		int (*closedir)(struct vfs_handle_struct *handle, struct connection_struct *conn, DIR *dir);
@@ -310,6 +317,9 @@ struct vfs_ops {
 
 		struct vfs_handle_struct *opendir;
 		struct vfs_handle_struct *readdir;
+		struct vfs_handle_struct *seekdir;
+		struct vfs_handle_struct *telldir;
+		struct vfs_handle_struct *rewinddir;
 		struct vfs_handle_struct *mkdir;
 		struct vfs_handle_struct *rmdir;
 		struct vfs_handle_struct *closedir;
diff --git a/source3/include/vfs_macros.h b/source3/include/vfs_macros.h
index 1ec1c5a778..a149db53b1 100644
--- a/source3/include/vfs_macros.h
+++ b/source3/include/vfs_macros.h
@@ -38,6 +38,9 @@
 /* Directory operations */
 #define SMB_VFS_OPENDIR(conn, fname) ((conn)->vfs.ops.opendir((conn)->vfs.handles.opendir, (conn), (fname)))
 #define SMB_VFS_READDIR(conn, dirp) ((conn)->vfs.ops.readdir((conn)->vfs.handles.readdir, (conn), (dirp))) 
+#define SMB_VFS_SEEKDIR(conn, dirp, offset) ((conn)->vfs.ops.seekdir((conn)->vfs.handles.seekdir, (conn), (dirp), (offset)))
+#define SMB_VFS_TELLDIR(conn, dirp) ((conn)->vfs.ops.telldir((conn)->vfs.handles.telldir, (conn), (dirp)))
+#define SMB_VFS_REWINDDIR(conn, dirp) ((conn)->vfs.ops.rewinddir((conn)->vfs.handles.rewinddir, (conn), (dirp)))
 #define SMB_VFS_MKDIR(conn, path, mode) ((conn)->vfs.ops.mkdir((conn)->vfs.handles.mkdir,(conn), (path), (mode)))
 #define SMB_VFS_RMDIR(conn, path) ((conn)->vfs.ops.rmdir((conn)->vfs.handles.rmdir, (conn), (path)))
 #define SMB_VFS_CLOSEDIR(conn, dir) ((conn)->vfs.ops.closedir((conn)->vfs.handles.closedir, (conn), dir))
@@ -136,6 +139,9 @@
 /* Directory operations */
 #define SMB_VFS_OPAQUE_OPENDIR(conn, fname) ((conn)->vfs_opaque.ops.opendir((conn)->vfs_opaque.handles.opendir, (conn), (fname)))
 #define SMB_VFS_OPAQUE_READDIR(conn, dirp) ((conn)->vfs_opaque.ops.readdir((conn)->vfs_opaque.handles.readdir, (conn), (dirp))) 
+#define SMB_VFS_OPAQUE_SEEKDIR(conn, dirp, offset) ((conn)->vfs_opaque.ops.seekdir((conn)->vfs_opaque.handles.seekdir, (conn), (dirp), (offset))) 
+#define SMB_VFS_OPAQUE_TELLDIR(conn, dirp) ((conn)->vfs_opaque.ops.telldir((conn)->vfs_opaque.handles.telldir, (conn), (dirp))) 
+#define SMB_VFS_OPAQUE_REWINDDIR(conn, dirp) ((conn)->vfs_opaque.ops.rewinddir((conn)->vfs_opaque.handles.rewinddir, (conn), (dirp))) 
 #define SMB_VFS_OPAQUE_MKDIR(conn, path, mode) ((conn)->vfs_opaque.ops.mkdir((conn)->vfs_opaque.handles.mkdir,(conn), (path), (mode)))
 #define SMB_VFS_OPAQUE_RMDIR(conn, path) ((conn)->vfs_opaque.ops.rmdir((conn)->vfs_opaque.handles.rmdir, (conn), (path)))
 #define SMB_VFS_OPAQUE_CLOSEDIR(conn, dir) ((conn)->vfs_opaque.ops.closedir((conn)->vfs_opaque.handles.closedir, (conn), dir))
@@ -234,6 +240,10 @@
 /* Directory operations */
 #define SMB_VFS_NEXT_OPENDIR(handle, conn, fname) ((handle)->vfs_next.ops.opendir((handle)->vfs_next.handles.opendir, (conn), (fname)))
 #define SMB_VFS_NEXT_READDIR(handle, conn, dirp) ((handle)->vfs_next.ops.readdir((handle)->vfs_next.handles.readdir, (conn), (dirp))) 
+#define SMB_VFS_NEXT_SEEKDIR(handle, conn, dirp) ((handle)->vfs_next.ops.seekdir((handle)->vfs_next.handles.seekdir, (conn), (dirp), (offset))) 
+#define SMB_VFS_NEXT_TELLDIR(handle, conn, dirp) ((handle)->vfs_next.ops.telldir((handle)->vfs_next.handles.telldir, (conn), (dirp))) 
+#define SMB_VFS_NEXT_REWINDDIR(handle, conn, dirp) ((handle)->vfs_next.ops.rewinddir((handle)->vfs_next.handles.rewinddir, (conn), (dirp))) 
+#define SMB_VFS_NEXT_DIR(handle, conn, dirp) ((handle)->vfs_next.ops.readdir((handle)->vfs_next.handles.readdir, (conn), (dirp))) 
 #define SMB_VFS_NEXT_MKDIR(handle, conn, path, mode) ((handle)->vfs_next.ops.mkdir((handle)->vfs_next.handles.mkdir,(conn), (path), (mode)))
 #define SMB_VFS_NEXT_RMDIR(handle, conn, path) ((handle)->vfs_next.ops.rmdir((handle)->vfs_next.handles.rmdir, (conn), (path)))
 #define SMB_VFS_NEXT_CLOSEDIR(handle, conn, dir) ((handle)->vfs_next.ops.closedir((handle)->vfs_next.handles.closedir, (conn), dir))
diff --git a/source3/lib/system.c b/source3/lib/system.c
index b27ac5c00a..f33d1ae7d5 100644
--- a/source3/lib/system.c
+++ b/source3/lib/system.c
@@ -362,6 +362,19 @@ FILE *sys_fopen(const char *path, const char *type)
 }
 
 /*******************************************************************
+ An opendir wrapper that will deal with 64 bit filesizes.
+********************************************************************/
+
+DIR *sys_opendir(const char *name)
+{
+#if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_OPENDIR64)
+	return opendir64(name);
+#else
+	return opendir(name);
+#endif
+}
+
+/*******************************************************************
  A readdir wrapper that will deal with 64 bit filesizes.
 ********************************************************************/
 
@@ -375,6 +388,58 @@ SMB_STRUCT_DIRENT *sys_readdir(DIR *dirp)
 }
 
 /*******************************************************************
+ A seekdir wrapper that will deal with 64 bit filesizes.
+********************************************************************/
+
+void sys_seekdir(DIR *dirp, long offset)
+{
+#if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_SEEKDIR64)
+	seekdir64(dirp, offset);
+#else
+	seekdir(dirp, offset);
+#endif
+}
+
+/*******************************************************************
+ A telldir wrapper that will deal with 64 bit filesizes.
+********************************************************************/
+
+long sys_telldir(DIR *dirp)
+{
+#if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_TELLDIR64)
+	return (long)telldir64(dirp);
+#else
+	return (long)telldir(dirp);
+#endif
+}
+
+/*******************************************************************
+ A rewinddir wrapper that will deal with 64 bit filesizes.
+********************************************************************/
+
+void sys_rewinddir(DIR *dirp)
+{
+#if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_REWINDDIR64)
+	rewinddir64(dirp);
+#else
+	rewinddir(dirp);
+#endif
+}
+
+/*******************************************************************
+ A close wrapper that will deal with 64 bit filesizes.
+********************************************************************/
+
+int sys_closedir(DIR *dirp)
+{
+#if defined(HAVE_EXPLICIT_LARGEFILE_SUPPORT) && defined(HAVE_CLOSEDIR64)
+	return closedir64(dirp);
+#else
+	return closedir(dirp);
+#endif
+}
+
+/*******************************************************************
  An mknod() wrapper that will deal with 64 bit filesizes.
 ********************************************************************/
 
diff --git a/source3/smbd/trans2.c b/source3/smbd/trans2.c
index ac282ed95f..4c0d5731eb 100644
--- a/source3/smbd/trans2.c
+++ b/source3/smbd/trans2.c
@@ -1329,9 +1329,10 @@ static int call_trans2findfirst(connection_struct *conn, char *inbuf, char *outb
 	char *pdata = *ppdata;
 	int dirtype = SVAL(params,0);
 	int maxentries = SVAL(params,2);
-	BOOL close_after_first = BITSETW(params+4,0);
-	BOOL close_if_end = BITSETW(params+4,1);
-	BOOL requires_resume_key = BITSETW(params+4,2);
+	uint16 findfirst_flags = SVAL(params,4);
+	BOOL close_after_first = (findfirst_flags & FLAG_TRANS2_FIND_CLOSE);
+	BOOL close_if_end = (findfirst_flags & FLAG_TRANS2_FIND_CLOSE_IF_END);
+	BOOL requires_resume_key = (findfirst_flags & FLAG_TRANS2_FIND_REQUIRE_RESUME);
 	int info_level = SVAL(params,6);
 	pstring directory;
 	pstring mask;
@@ -1555,10 +1556,11 @@ static int call_trans2findnext(connection_struct *conn, char *inbuf, char *outbu
 	int maxentries = SVAL(params,2);
 	uint16 info_level = SVAL(params,4);
 	uint32 resume_key = IVAL(params,6);
-	BOOL close_after_request = BITSETW(params+10,0);
-	BOOL close_if_end = BITSETW(params+10,1);
-	BOOL requires_resume_key = BITSETW(params+10,2);
-	BOOL continue_bit = BITSETW(params+10,3);
+	uint16 findnext_flags = SVAL(params,10);
+	BOOL close_after_request = (findnext_flags & FLAG_TRANS2_FIND_CLOSE);
+	BOOL close_if_end = (findnext_flags & FLAG_TRANS2_FIND_CLOSE_IF_END);
+	BOOL requires_resume_key = (findnext_flags & FLAG_TRANS2_FIND_REQUIRE_RESUME);
+	BOOL continue_bit = (findnext_flags & FLAG_TRANS2_FIND_CONTINUE);
 	pstring resume_name;
 	pstring mask;
 	pstring directory;
diff --git a/source3/smbd/vfs-wrap.c b/source3/smbd/vfs-wrap.c
index 5393dfc755..1444d0e875 100644
--- a/source3/smbd/vfs-wrap.c
+++ b/source3/smbd/vfs-wrap.c
@@ -93,21 +93,44 @@ DIR *vfswrap_opendir(vfs_handle_struct *handle, connection_struct *conn, const c
 	DIR *result;
 
 	START_PROFILE(syscall_opendir);
-	result = opendir(fname);
+	result = sys_opendir(fname);
 	END_PROFILE(syscall_opendir);
 	return result;
 }
 
-struct dirent *vfswrap_readdir(vfs_handle_struct *handle, connection_struct *conn, DIR *dirp)
+SMB_STRUCT_DIRENT *vfswrap_readdir(vfs_handle_struct *handle, connection_struct *conn, DIR *dirp)
 {
 	struct dirent *result;
 
 	START_PROFILE(syscall_readdir);
-	result = readdir(dirp);
+	result = sys_readdir(dirp);
 	END_PROFILE(syscall_readdir);
 	return result;
 }
 
+void vfswrap_seekdir(vfs_handle_struct *handle, connection_struct *conn, DIR *dirp, long offset)
+{
+	START_PROFILE(syscall_seekdir);
+	sys_seekdir(dirp, offset);
+	END_PROFILE(syscall_seekdir);
+}
+
+long vfswrap_telldir(vfs_handle_struct *handle, connection_struct *conn, DIR *dirp)
+{
+	long result;
+	START_PROFILE(syscall_telldir);
+	result = sys_telldir(dirp);
+	END_PROFILE(syscall_telldir);
+	return result;
+}
+
+void vfswrap_rewinddir(vfs_handle_struct *handle, connection_struct *conn, DIR *dirp)
+{
+	START_PROFILE(syscall_rewinddir);
+	sys_rewinddir(dirp);
+	END_PROFILE(syscall_rewinddir);
+}
+
 int vfswrap_mkdir(vfs_handle_struct *handle, connection_struct *conn, const char *path, mode_t mode)
 {
 	int result;
@@ -152,7 +175,7 @@ int vfswrap_closedir(vfs_handle_struct *handle, connection_struct *conn, DIR *di
 	int result;
 
 	START_PROFILE(syscall_closedir);
-	result = closedir(dirp);
+	result = sys_closedir(dirp);
 	END_PROFILE(syscall_closedir);
 	return result;
 }
diff --git a/source3/smbd/vfs.c b/source3/smbd/vfs.c
index 0328558fe8..f30a555900 100644
--- a/source3/smbd/vfs.c
+++ b/source3/smbd/vfs.c
@@ -62,6 +62,9 @@ static struct vfs_ops default_vfs = {
 	
 		vfswrap_opendir,
 		vfswrap_readdir,
+		vfswrap_seekdir,
+		vfswrap_telldir,
+		vfswrap_rewinddir,
 		vfswrap_mkdir,
 		vfswrap_rmdir,
 		vfswrap_closedir,
@@ -611,13 +614,13 @@ SMB_OFF_T vfs_transfer_file(files_struct *in, files_struct *out, SMB_OFF_T n)
 
 char *vfs_readdirname(connection_struct *conn, void *p)
 {
-	struct dirent *ptr= NULL;
+	SMB_STRUCT_DIRENT *ptr= NULL;
 	char *dname;
 
 	if (!p)
 		return(NULL);
 
-	ptr = (struct dirent *)SMB_VFS_READDIR(conn,p);
+	ptr = SMB_VFS_READDIR(conn,p);
 	if (!ptr)
 		return(NULL);