s3: Fix FILE_FLAG_POSIX_SEMANTICS handling underneath SMB_VFS_CREATE_FILE
[kai/samba.git] / source3 / smbd / open.c
index 8b32907a4b6e7e80362b00c60d4ff007c3a00f42..41a1fb371d5bdfdd78676d5be1043f3cfe8080fd 100644 (file)
@@ -29,6 +29,73 @@ struct deferred_open_record {
        struct file_id id;
 };
 
+static NTSTATUS create_file_unixpath(connection_struct *conn,
+                                    struct smb_request *req,
+                                    const char *fname,
+                                    uint32_t access_mask,
+                                    uint32_t share_access,
+                                    uint32_t create_disposition,
+                                    uint32_t create_options,
+                                    uint32_t file_attributes,
+                                    uint32_t oplock_request,
+                                    uint64_t allocation_size,
+                                    struct security_descriptor *sd,
+                                    struct ea_list *ea_list,
+
+                                    files_struct **result,
+                                    int *pinfo,
+                                    SMB_STRUCT_STAT *psbuf);
+
+/****************************************************************************
+ SMB1 file varient of se_access_check. Never test FILE_READ_ATTRIBUTES.
+****************************************************************************/
+
+NTSTATUS smb1_file_se_access_check(const struct security_descriptor *sd,
+                          const NT_USER_TOKEN *token,
+                          uint32_t access_desired,
+                          uint32_t *access_granted)
+{
+       return se_access_check(sd,
+                               token,
+                               (access_desired & ~FILE_READ_ATTRIBUTES),
+                               access_granted);
+}
+
+/****************************************************************************
+ Check if we have open rights.
+****************************************************************************/
+
+static NTSTATUS check_open_rights(struct connection_struct *conn,
+                               const char *fname,
+                               uint32_t access_mask)
+{
+       /* Check if we have rights to open. */
+       NTSTATUS status;
+       uint32_t access_granted = 0;
+       struct security_descriptor *sd;
+
+       status = SMB_VFS_GET_NT_ACL(conn, fname,
+                       (OWNER_SECURITY_INFORMATION |
+                       GROUP_SECURITY_INFORMATION |
+                       DACL_SECURITY_INFORMATION),&sd);
+
+       if (!NT_STATUS_IS_OK(status)) {
+               DEBUG(10, ("check_open_rights: Could not get acl "
+                       "on %s: %s\n",
+                       fname,
+                       nt_errstr(status)));
+               return status;
+       }
+
+       status = smb1_file_se_access_check(sd,
+                               conn->server_info->ptok,
+                               access_mask,
+                               &access_granted);
+
+       TALLOC_FREE(sd);
+       return status;
+}
+
 /****************************************************************************
  fd support routines - attempt to do a dos_open.
 ****************************************************************************/
@@ -282,6 +349,7 @@ static NTSTATUS open_file(files_struct *fsp,
        if ((open_access_mask & (FILE_READ_DATA|FILE_WRITE_DATA|FILE_APPEND_DATA|FILE_EXECUTE)) ||
            (!file_existed && (local_flags & O_CREAT)) ||
            ((local_flags & O_TRUNC) == O_TRUNC) ) {
+               const char *wild;
 
                /*
                 * We can't actually truncate here as the file may be locked.
@@ -303,8 +371,17 @@ static NTSTATUS open_file(files_struct *fsp,
 #endif
 
                /* Don't create files with Microsoft wildcard characters. */
+               if (fsp->base_fsp) {
+                       /*
+                        * wildcard characters are allowed in stream names
+                        * only test the basefilename
+                        */
+                       wild = fsp->base_fsp->fsp_name;
+               } else {
+                       wild = path;
+               }
                if ((local_flags & O_CREAT) && !file_existed &&
-                   ms_has_wild(path))  {
+                   ms_has_wild(wild))  {
                        return NT_STATUS_OBJECT_NAME_INVALID;
                }
 
@@ -337,6 +414,17 @@ static NTSTATUS open_file(files_struct *fsp,
 
        } else {
                fsp->fh->fd = -1; /* What we used to call a stat open. */
+               if (file_existed) {
+                       status = check_open_rights(conn,
+                                       path,
+                                       access_mask);
+                       if (!NT_STATUS_IS_OK(status)) {
+                               DEBUG(10, ("open_file: Access denied on "
+                                       "file %s\n",
+                                       path));
+                               return status;
+                       }
+               }
        }
 
        if (!file_existed) {
@@ -401,7 +489,7 @@ static NTSTATUS open_file(files_struct *fsp,
                 conn->server_info->unix_name,
                 fsp->fsp_name,
                 BOOLSTR(fsp->can_read), BOOLSTR(fsp->can_write),
-                conn->num_files_open + 1));
+                conn->num_files_open));
 
        errno = 0;
        return NT_STATUS_OK;
@@ -890,8 +978,10 @@ static bool open_match_attributes(connection_struct *conn,
  Try and find a duplicated file handle.
 ****************************************************************************/
 
-static files_struct *fcb_or_dos_open(connection_struct *conn,
-                                    const char *fname, 
+static NTSTATUS fcb_or_dos_open(struct smb_request *req,
+                                    connection_struct *conn,
+                                    files_struct *fsp_to_dup_into,
+                                    const char *fname,
                                     struct file_id id,
                                     uint16 file_pid,
                                     uint16 vuid,
@@ -900,7 +990,6 @@ static files_struct *fcb_or_dos_open(connection_struct *conn,
                                     uint32 create_options)
 {
        files_struct *fsp;
-       files_struct *dup_fsp;
 
        DEBUG(5,("fcb_or_dos_open: attempting old open semantics for "
                 "file %s.\n", fname ));
@@ -929,23 +1018,21 @@ static files_struct *fcb_or_dos_open(connection_struct *conn,
        }
 
        if (!fsp) {
-               return NULL;
+               return NT_STATUS_NOT_FOUND;
        }
 
        /* quite an insane set of semantics ... */
        if (is_executable(fname) &&
            (fsp->fh->private_options & NTCREATEX_OPTIONS_PRIVATE_DENY_DOS)) {
                DEBUG(10,("fcb_or_dos_open: file fail due to is_executable.\n"));
-               return NULL;
+               return NT_STATUS_INVALID_PARAMETER;
        }
 
        /* We need to duplicate this fsp. */
-       if (!NT_STATUS_IS_OK(dup_file_fsp(fsp, access_mask, share_access,
-                                         create_options, &dup_fsp))) {
-               return NULL;
-       }
+       dup_file_fsp(req, fsp, access_mask, share_access,
+                       create_options, fsp_to_dup_into);
 
-       return dup_fsp;
+       return NT_STATUS_OK;
 }
 
 /****************************************************************************
@@ -1125,10 +1212,72 @@ static void schedule_defer_open(struct share_mode_lock *lck,
 }
 
 /****************************************************************************
Open a file with a share mode.
Work out what access_mask to use from what the client sent us.
 ****************************************************************************/
 
-NTSTATUS open_file_ntcreate(connection_struct *conn,
+static NTSTATUS calculate_access_mask(connection_struct *conn,
+                                       const char *fname,
+                                       bool file_existed,
+                                       uint32_t access_mask,
+                                       uint32_t *access_mask_out)
+{
+       NTSTATUS status;
+
+       /*
+        * Convert GENERIC bits to specific bits.
+        */
+
+       se_map_generic(&access_mask, &file_generic_mapping);
+
+       /* Calculate MAXIMUM_ALLOWED_ACCESS if requested. */
+       if (access_mask & MAXIMUM_ALLOWED_ACCESS) {
+               if (file_existed) {
+
+                       struct security_descriptor *sd;
+                       uint32_t access_granted = 0;
+
+                       status = SMB_VFS_GET_NT_ACL(conn, fname,
+                                       (OWNER_SECURITY_INFORMATION |
+                                       GROUP_SECURITY_INFORMATION |
+                                       DACL_SECURITY_INFORMATION),&sd);
+
+                       if (!NT_STATUS_IS_OK(status)) {
+                               DEBUG(10, ("calculate_access_mask: Could not get acl "
+                                       "on file %s: %s\n",
+                                       fname,
+                                       nt_errstr(status)));
+                               return NT_STATUS_ACCESS_DENIED;
+                       }
+
+                       status = smb1_file_se_access_check(sd,
+                                       conn->server_info->ptok,
+                                       access_mask,
+                                       &access_granted);
+
+                       TALLOC_FREE(sd);
+
+                       if (!NT_STATUS_IS_OK(status)) {
+                               DEBUG(10, ("calculate_access_mask: Access denied on "
+                                       "file %s: when calculating maximum access\n",
+                                       fname));
+                               return NT_STATUS_ACCESS_DENIED;
+                       }
+
+                       access_mask = access_granted;
+               } else {
+                       access_mask = FILE_GENERIC_ALL;
+               }
+       }
+
+       *access_mask_out = access_mask;
+       return NT_STATUS_OK;
+}
+
+/****************************************************************************
+ Open a file with a share mode. Passed in an already created files_struct *.
+****************************************************************************/
+
+static NTSTATUS open_file_ntcreate(connection_struct *conn,
                            struct smb_request *req,
                            const char *fname,
                            SMB_STRUCT_STAT *psbuf,
@@ -1140,7 +1289,7 @@ NTSTATUS open_file_ntcreate(connection_struct *conn,
                            int oplock_request,         /* internal Samba oplock codes. */
                                                        /* Information (FILE_EXISTS etc.) */
                            int *pinfo,
-                           files_struct **result)
+                           files_struct *fsp)
 {
        int flags=0;
        int flags2=0;
@@ -1150,7 +1299,6 @@ NTSTATUS open_file_ntcreate(connection_struct *conn,
        bool new_file_created = False;
        struct file_id id;
        NTSTATUS fsp_open = NT_STATUS_ACCESS_DENIED;
-       files_struct *fsp = NULL;
        mode_t new_unx_mode = (mode_t)0;
        mode_t unx_mode = (mode_t)0;
        int info;
@@ -1167,7 +1315,7 @@ NTSTATUS open_file_ntcreate(connection_struct *conn,
        ZERO_STRUCT(id);
 
        if (conn->printer) {
-               /* 
+               /*
                 * Printers are handled completely differently.
                 * Most of the passed parameters are ignored.
                 */
@@ -1178,7 +1326,7 @@ NTSTATUS open_file_ntcreate(connection_struct *conn,
 
                DEBUG(10, ("open_file_ntcreate: printer open fname=%s\n", fname));
 
-               return print_fsp_open(conn, fname, req->vuid, result);
+               return print_fsp_open(req, conn, fname, req->vuid, fsp);
        }
 
        if (!parent_dirname_talloc(talloc_tos(), fname, &parent_dir,
@@ -1242,7 +1390,7 @@ NTSTATUS open_file_ntcreate(connection_struct *conn,
        status = check_name(conn, fname);
        if (!NT_STATUS_IS_OK(status)) {
                return status;
-       } 
+       }
 
        if (!posix_open) {
                new_dos_attributes &= SAMBA_ATTRIBUTES_MASK;
@@ -1360,16 +1508,17 @@ NTSTATUS open_file_ntcreate(connection_struct *conn,
                }
        }
 
-       /* This is a nasty hack - must fix... JRA. */
-       if (access_mask == MAXIMUM_ALLOWED_ACCESS) {
-               open_access_mask = access_mask = FILE_GENERIC_ALL;
+       status = calculate_access_mask(conn, fname, file_existed,
+                                       access_mask,
+                                       &access_mask); 
+       if (!NT_STATUS_IS_OK(status)) {
+               DEBUG(10, ("open_file_ntcreate: calculate_access_mask "
+                       "on file %s returned %s\n",
+                       fname,
+                       nt_errstr(status)));
+               return status;
        }
 
-       /*
-        * Convert GENERIC bits to specific bits.
-        */
-
-       se_map_generic(&access_mask, &file_generic_mapping);
        open_access_mask = access_mask;
 
        if ((flags2 & O_TRUNC) || (oplock_request & FORCE_OPLOCK_BREAK_TO_NONE)) {
@@ -1408,7 +1557,7 @@ NTSTATUS open_file_ntcreate(connection_struct *conn,
                flags2 |= O_SYNC;
        }
 #endif /* O_SYNC */
-  
+
        if (posix_open && (access_mask & FILE_APPEND_DATA)) {
                flags2 |= O_APPEND;
        }
@@ -1435,11 +1584,6 @@ NTSTATUS open_file_ntcreate(connection_struct *conn,
                return NT_STATUS_ACCESS_DENIED;
        }
 
-       status = file_new(conn, &fsp);
-       if(!NT_STATUS_IS_OK(status)) {
-               return status;
-       }
-
        fsp->file_id = vfs_file_id_from_sbuf(conn, psbuf);
        fsp->share_access = share_access;
        fsp->fh->private_options = create_options;
@@ -1464,7 +1608,6 @@ NTSTATUS open_file_ntcreate(connection_struct *conn,
                                          fname, &old_write_time);
 
                if (lck == NULL) {
-                       file_free(fsp);
                        DEBUG(0, ("Could not get share mode lock\n"));
                        return NT_STATUS_SHARING_VIOLATION;
                }
@@ -1475,7 +1618,6 @@ NTSTATUS open_file_ntcreate(connection_struct *conn,
                                         oplock_request)) {
                        schedule_defer_open(lck, request_time, req);
                        TALLOC_FREE(lck);
-                       file_free(fsp);
                        return NT_STATUS_SHARING_VIOLATION;
                }
 
@@ -1495,7 +1637,6 @@ NTSTATUS open_file_ntcreate(connection_struct *conn,
                                                  oplock_request)) {
                                schedule_defer_open(lck, request_time, req);
                                TALLOC_FREE(lck);
-                               file_free(fsp);
                                return NT_STATUS_SHARING_VIOLATION;
                        }
                }
@@ -1503,7 +1644,6 @@ NTSTATUS open_file_ntcreate(connection_struct *conn,
                if (NT_STATUS_EQUAL(status, NT_STATUS_DELETE_PENDING)) {
                        /* DELETE_PENDING is not deferred for a second */
                        TALLOC_FREE(lck);
-                       file_free(fsp);
                        return status;
                }
 
@@ -1518,33 +1658,31 @@ NTSTATUS open_file_ntcreate(connection_struct *conn,
                        if (create_options &
                            (NTCREATEX_OPTIONS_PRIVATE_DENY_DOS|
                             NTCREATEX_OPTIONS_PRIVATE_DENY_FCB)) {
-                               files_struct *fsp_dup;
-
                                if (req == NULL) {
                                        DEBUG(0, ("DOS open without an SMB "
                                                  "request!\n"));
                                        TALLOC_FREE(lck);
-                                       file_free(fsp);
                                        return NT_STATUS_INTERNAL_ERROR;
                                }
 
                                /* Use the client requested access mask here,
                                 * not the one we open with. */
-                               fsp_dup = fcb_or_dos_open(conn, fname, id,
-                                                         req->smbpid,
-                                                         req->vuid,
-                                                         access_mask,
-                                                         share_access,
-                                                         create_options);
-
-                               if (fsp_dup) {
+                               status = fcb_or_dos_open(req,
+                                                       conn,
+                                                       fsp,
+                                                       fname,
+                                                       id,
+                                                       req->smbpid,
+                                                       req->vuid,
+                                                       access_mask,
+                                                       share_access,
+                                                       create_options);
+
+                               if (NT_STATUS_IS_OK(status)) {
                                        TALLOC_FREE(lck);
-                                       file_free(fsp);
                                        if (pinfo) {
                                                *pinfo = FILE_WAS_OPENED;
                                        }
-                                       conn->num_files_open++;
-                                       *result = fsp_dup;
                                        return NT_STATUS_OK;
                                }
                        }
@@ -1572,7 +1710,7 @@ NTSTATUS open_file_ntcreate(connection_struct *conn,
                                can_access = False;
                        }
 
-                       /* 
+                       /*
                         * If we're returning a share violation, ensure we
                         * cope with the braindead 1 second delay.
                         */
@@ -1625,7 +1763,6 @@ NTSTATUS open_file_ntcreate(connection_struct *conn,
                        } else {
                                status = NT_STATUS_ACCESS_DENIED;
                        }
-                       file_free(fsp);
                        return status;
                }
 
@@ -1663,7 +1800,6 @@ NTSTATUS open_file_ntcreate(connection_struct *conn,
                if (lck != NULL) {
                        TALLOC_FREE(lck);
                }
-               file_free(fsp);
                return fsp_open;
        }
 
@@ -1694,7 +1830,6 @@ NTSTATUS open_file_ntcreate(connection_struct *conn,
                        DEBUG(0, ("open_file_ntcreate: Could not get share "
                                  "mode lock for %s\n", fname));
                        fd_close(fsp);
-                       file_free(fsp);
                        return NT_STATUS_SHARING_VIOLATION;
                }
 
@@ -1705,7 +1840,6 @@ NTSTATUS open_file_ntcreate(connection_struct *conn,
                        schedule_defer_open(lck, request_time, req);
                        TALLOC_FREE(lck);
                        fd_close(fsp);
-                       file_free(fsp);
                        return NT_STATUS_SHARING_VIOLATION;
                }
 
@@ -1724,7 +1858,6 @@ NTSTATUS open_file_ntcreate(connection_struct *conn,
                                schedule_defer_open(lck, request_time, req);
                                TALLOC_FREE(lck);
                                fd_close(fsp);
-                               file_free(fsp);
                                return NT_STATUS_SHARING_VIOLATION;
                        }
                }
@@ -1733,7 +1866,6 @@ NTSTATUS open_file_ntcreate(connection_struct *conn,
                        struct deferred_open_record state;
 
                        fd_close(fsp);
-                       file_free(fsp);
 
                        state.delayed_for_oplocks = False;
                        state.id = id;
@@ -1775,7 +1907,6 @@ NTSTATUS open_file_ntcreate(connection_struct *conn,
 
                        TALLOC_FREE(lck);
                        fd_close(fsp);
-                       file_free(fsp);
 
                        return NT_STATUS_SHARING_VIOLATION;
                }
@@ -1801,7 +1932,6 @@ NTSTATUS open_file_ntcreate(connection_struct *conn,
                        status = map_nt_error_from_unix(errno);
                        TALLOC_FREE(lck);
                        fd_close(fsp);
-                       file_free(fsp);
                        return status;
                }
        }
@@ -1809,7 +1939,10 @@ NTSTATUS open_file_ntcreate(connection_struct *conn,
        /* Record the options we were opened with. */
        fsp->share_access = share_access;
        fsp->fh->private_options = create_options;
-       fsp->access_mask = access_mask;
+       /*
+        * According to Samba4, SEC_FILE_READ_ATTRIBUTE is always granted,
+        */
+       fsp->access_mask = access_mask | FILE_READ_ATTRIBUTES;
 
        if (file_existed) {
                /* stat opens on existing files don't get oplocks. */
@@ -1830,7 +1963,7 @@ NTSTATUS open_file_ntcreate(connection_struct *conn,
                *pinfo = info;
        }
 
-       /* 
+       /*
         * Setup the oplock info in both the shared memory and
         * file structs.
         */
@@ -1852,7 +1985,8 @@ NTSTATUS open_file_ntcreate(connection_struct *conn,
 
        /* Handle strange delete on close create semantics. */
        if ((create_options & FILE_DELETE_ON_CLOSE)
-           && (is_ntfs_stream_name(fname)
+           && (((conn->fs_capabilities & FILE_NAMED_STREAMS)
+                       && is_ntfs_stream_name(fname))
                || can_set_initial_delete_on_close(lck))) {
                status = can_set_delete_on_close(fsp, True, new_dos_attributes);
 
@@ -1861,14 +1995,13 @@ NTSTATUS open_file_ntcreate(connection_struct *conn,
                        del_share_mode(lck, fsp);
                        TALLOC_FREE(lck);
                        fd_close(fsp);
-                       file_free(fsp);
                        return status;
                }
                /* Note that here we set the *inital* delete on close flag,
                   not the regular one. The magic gets handled in close. */
                fsp->initial_delete_on_close = True;
        }
-       
+
        if (new_file_created) {
                /* Files should be initially set as archive */
                if (lp_map_archive(SNUM(conn)) ||
@@ -1937,17 +2070,16 @@ NTSTATUS open_file_ntcreate(connection_struct *conn,
        }
        TALLOC_FREE(lck);
 
-       conn->num_files_open++;
-
-       *result = fsp;
        return NT_STATUS_OK;
 }
 
+
 /****************************************************************************
  Open a file for for write to ensure that we can fchmod it.
 ****************************************************************************/
 
-NTSTATUS open_file_fchmod(connection_struct *conn, const char *fname,
+NTSTATUS open_file_fchmod(struct smb_request *req, connection_struct *conn,
+                         const char *fname,
                          SMB_STRUCT_STAT *psbuf, files_struct **result)
 {
        files_struct *fsp = NULL;
@@ -1957,24 +2089,38 @@ NTSTATUS open_file_fchmod(connection_struct *conn, const char *fname,
                return NT_STATUS_INVALID_PARAMETER;
        }
 
-       status = file_new(conn, &fsp);
+       status = file_new(req, conn, &fsp);
        if(!NT_STATUS_IS_OK(status)) {
                return status;
        }
 
-       /* note! we must use a non-zero desired access or we don't get
-           a real file descriptor. Oh what a twisted web we weave. */
-       status = open_file(fsp, conn, NULL, NULL, NULL, fname, psbuf, O_WRONLY,
-                          0, FILE_WRITE_DATA, FILE_WRITE_DATA);
+       status = SMB_VFS_CREATE_FILE(
+               conn,                                   /* conn */
+               NULL,                                   /* req */
+               0,                                      /* root_dir_fid */
+               fname,                                  /* fname */
+               0,                                      /* create_file_flags */
+               FILE_WRITE_DATA,                        /* access_mask */
+               (FILE_SHARE_READ | FILE_SHARE_WRITE |   /* share_access */
+                   FILE_SHARE_DELETE),
+               FILE_OPEN,                              /* create_disposition*/
+               0,                                      /* create_options */
+               0,                                      /* file_attributes */
+               0,                                      /* oplock_request */
+               0,                                      /* allocation_size */
+               NULL,                                   /* sd */
+               NULL,                                   /* ea_list */
+               &fsp,                                   /* result */
+               NULL,                                   /* pinfo */
+               psbuf);                                 /* psbuf */
 
-       /* 
+       /*
         * This is not a user visible file open.
-        * Don't set a share mode and don't increment
-        * the conn->num_files_open.
+        * Don't set a share mode.
         */
 
        if (!NT_STATUS_IS_OK(status)) {
-               file_free(fsp);
+               file_free(req, fsp);
                return status;
        }
 
@@ -1986,10 +2132,10 @@ NTSTATUS open_file_fchmod(connection_struct *conn, const char *fname,
  Close the fchmod file fd - ensure no locks are lost.
 ****************************************************************************/
 
-NTSTATUS close_file_fchmod(files_struct *fsp)
+NTSTATUS close_file_fchmod(struct smb_request *req, files_struct *fsp)
 {
        NTSTATUS status = fd_close(fsp);
-       file_free(fsp);
+       file_free(req, fsp);
        return status;
 }
 
@@ -2087,17 +2233,17 @@ static NTSTATUS mkdir_internal(connection_struct *conn,
  Open a directory from an NT SMB call.
 ****************************************************************************/
 
-NTSTATUS open_directory(connection_struct *conn,
-                       struct smb_request *req,
-                       const char *fname,
-                       SMB_STRUCT_STAT *psbuf,
-                       uint32 access_mask,
-                       uint32 share_access,
-                       uint32 create_disposition,
-                       uint32 create_options,
-                       uint32 file_attributes,
-                       int *pinfo,
-                       files_struct **result)
+static NTSTATUS open_directory(connection_struct *conn,
+                              struct smb_request *req,
+                              const char *fname,
+                              SMB_STRUCT_STAT *psbuf,
+                              uint32 access_mask,
+                              uint32 share_access,
+                              uint32 create_disposition,
+                              uint32 create_options,
+                              uint32 file_attributes,
+                              int *pinfo,
+                              files_struct **result)
 {
        files_struct *fsp = NULL;
        bool dir_existed = VALID_STAT(*psbuf) ? True : False;
@@ -2116,11 +2262,24 @@ NTSTATUS open_directory(connection_struct *conn,
                 (unsigned int)create_disposition,
                 (unsigned int)file_attributes));
 
-       if (!(file_attributes & FILE_FLAG_POSIX_SEMANTICS) && is_ntfs_stream_name(fname)) {
+       if (!(file_attributes & FILE_FLAG_POSIX_SEMANTICS) &&
+                       (conn->fs_capabilities & FILE_NAMED_STREAMS) &&
+                       is_ntfs_stream_name(fname)) {
                DEBUG(2, ("open_directory: %s is a stream name!\n", fname));
                return NT_STATUS_NOT_A_DIRECTORY;
        }
 
+       status = calculate_access_mask(conn, fname, dir_existed,
+                                       access_mask,
+                                       &access_mask); 
+       if (!NT_STATUS_IS_OK(status)) {
+               DEBUG(10, ("open_directory: calculate_access_mask "
+                       "on file %s returned %s\n",
+                       fname,
+                       nt_errstr(status)));
+               return status;
+       }
+
        switch( create_disposition ) {
                case FILE_OPEN:
 
@@ -2195,7 +2354,20 @@ NTSTATUS open_directory(connection_struct *conn,
                return NT_STATUS_NOT_A_DIRECTORY;
        }
 
-       status = file_new(conn, &fsp);
+       if (info == FILE_WAS_OPENED) {
+               status = check_open_rights(conn,
+                                       fname,
+                                       access_mask);
+               if (!NT_STATUS_IS_OK(status)) {
+                       DEBUG(10, ("open_directory: check_open_rights on "
+                               "file %s failed with %s\n",
+                               fname,
+                               nt_errstr(status)));
+                       return status;
+               }
+       }
+
+       status = file_new(req, conn, &fsp);
        if(!NT_STATUS_IS_OK(status)) {
                return status;
        }
@@ -2214,8 +2386,10 @@ NTSTATUS open_directory(connection_struct *conn,
 
        fsp->share_access = share_access;
        fsp->fh->private_options = create_options;
-       fsp->access_mask = access_mask;
-
+       /*
+        * According to Samba4, SEC_FILE_READ_ATTRIBUTE is always granted,
+        */
+       fsp->access_mask = access_mask | FILE_READ_ATTRIBUTES;
        fsp->print_file = False;
        fsp->modified = False;
        fsp->oplock_type = NO_OPLOCK;
@@ -2233,7 +2407,7 @@ NTSTATUS open_directory(connection_struct *conn,
 
        if (lck == NULL) {
                DEBUG(0, ("open_directory: Could not get share mode lock for %s\n", fname));
-               file_free(fsp);
+               file_free(req, fsp);
                return NT_STATUS_SHARING_VIOLATION;
        }
 
@@ -2243,7 +2417,7 @@ NTSTATUS open_directory(connection_struct *conn,
 
        if (!NT_STATUS_IS_OK(status)) {
                TALLOC_FREE(lck);
-               file_free(fsp);
+               file_free(req, fsp);
                return status;
        }
 
@@ -2256,7 +2430,7 @@ NTSTATUS open_directory(connection_struct *conn,
                status = can_set_delete_on_close(fsp, True, 0);
                if (!NT_STATUS_IS_OK(status) && !NT_STATUS_EQUAL(status, NT_STATUS_DIRECTORY_NOT_EMPTY)) {
                        TALLOC_FREE(lck);
-                       file_free(fsp);
+                       file_free(req, fsp);
                        return status;
                }
 
@@ -2273,8 +2447,6 @@ NTSTATUS open_directory(connection_struct *conn,
                *pinfo = info;
        }
 
-       conn->num_files_open++;
-
        *result = fsp;
        return NT_STATUS_OK;
 }
@@ -2287,17 +2459,27 @@ NTSTATUS create_directory(connection_struct *conn, struct smb_request *req, cons
 
        SET_STAT_INVALID(sbuf);
        
-       status = open_directory(conn, req, directory, &sbuf,
-                               FILE_READ_ATTRIBUTES, /* Just a stat open */
-                               FILE_SHARE_NONE, /* Ignored for stat opens */
-                               FILE_CREATE,
-                               0,
-                               FILE_ATTRIBUTE_DIRECTORY,
-                               NULL,
-                               &fsp);
+       status = SMB_VFS_CREATE_FILE(
+               conn,                                   /* conn */
+               req,                                    /* req */
+               0,                                      /* root_dir_fid */
+               directory,                              /* fname */
+               0,                                      /* create_file_flags */
+               FILE_READ_ATTRIBUTES,                   /* access_mask */
+               FILE_SHARE_NONE,                        /* share_access */
+               FILE_CREATE,                            /* create_disposition*/
+               FILE_DIRECTORY_FILE,                    /* create_options */
+               FILE_ATTRIBUTE_DIRECTORY,               /* file_attributes */
+               0,                                      /* oplock_request */
+               0,                                      /* allocation_size */
+               NULL,                                   /* sd */
+               NULL,                                   /* ea_list */
+               &fsp,                                   /* result */
+               NULL,                                   /* pinfo */
+               &sbuf);                                 /* psbuf */
 
        if (NT_STATUS_IS_OK(status)) {
-               close_file(fsp, NORMAL_CLOSE);
+               close_file(req, fsp, NORMAL_CLOSE);
        }
 
        return status;
@@ -2507,7 +2689,7 @@ static NTSTATUS open_streams_for_delete(connection_struct *conn,
 
                DEBUG(10, ("Closing stream # %d, %s\n", i,
                           streams[i]->fsp_name));
-               close_file(streams[i], NORMAL_CLOSE);
+               close_file(NULL, streams[i], NORMAL_CLOSE);
        }
 
  fail:
@@ -2519,22 +2701,22 @@ static NTSTATUS open_streams_for_delete(connection_struct *conn,
  * Wrapper around open_file_ntcreate and open_directory
  */
 
-NTSTATUS create_file_unixpath(connection_struct *conn,
-                             struct smb_request *req,
-                             const char *fname,
-                             uint32_t access_mask,
-                             uint32_t share_access,
-                             uint32_t create_disposition,
-                             uint32_t create_options,
-                             uint32_t file_attributes,
-                             uint32_t oplock_request,
-                             SMB_BIG_UINT allocation_size,
-                             struct security_descriptor *sd,
-                             struct ea_list *ea_list,
-
-                             files_struct **result,
-                             int *pinfo,
-                             SMB_STRUCT_STAT *psbuf)
+static NTSTATUS create_file_unixpath(connection_struct *conn,
+                                    struct smb_request *req,
+                                    const char *fname,
+                                    uint32_t access_mask,
+                                    uint32_t share_access,
+                                    uint32_t create_disposition,
+                                    uint32_t create_options,
+                                    uint32_t file_attributes,
+                                    uint32_t oplock_request,
+                                    uint64_t allocation_size,
+                                    struct security_descriptor *sd,
+                                    struct ea_list *ea_list,
+
+                                    files_struct **result,
+                                    int *pinfo,
+                                    SMB_STRUCT_STAT *psbuf)
 {
        SMB_STRUCT_STAT sbuf;
        int info = FILE_WAS_OPENED;
@@ -2605,9 +2787,7 @@ NTSTATUS create_file_unixpath(connection_struct *conn,
            && (create_disposition != FILE_CREATE)
            && (share_access & FILE_SHARE_DELETE)
            && (access_mask & DELETE_ACCESS)
-           && (((dos_mode(conn, fname, &sbuf) & FILE_ATTRIBUTE_READONLY)
-                && !lp_delete_readonly(SNUM(conn)))
-               || !can_delete_file_in_directory(conn, fname))) {
+           && (!can_delete_file_in_directory(conn, fname))) {
                status = NT_STATUS_ACCESS_DENIED;
                goto fail;
        }
@@ -2665,6 +2845,8 @@ NTSTATUS create_file_unixpath(connection_struct *conn,
                                   "%s\n", base, nt_errstr(status)));
                        goto fail;
                }
+               /* we don't need to low level fd */
+               fd_close(base_fsp);
        }
 
        /*
@@ -2679,7 +2861,8 @@ NTSTATUS create_file_unixpath(connection_struct *conn,
                }
 
                /* Can't open a temp directory. IFS kit test. */
-               if (file_attributes & FILE_ATTRIBUTE_TEMPORARY) {
+               if (!(file_attributes & FILE_FLAG_POSIX_SEMANTICS) &&
+                    (file_attributes & FILE_ATTRIBUTE_TEMPORARY)) {
                        status = NT_STATUS_INVALID_PARAMETER;
                        goto fail;
                }
@@ -2701,13 +2884,46 @@ NTSTATUS create_file_unixpath(connection_struct *conn,
                 * Ordinary file case.
                 */
 
-               status = open_file_ntcreate(
-                       conn, req, fname, &sbuf, access_mask, share_access,
-                       create_disposition, create_options, file_attributes,
-                       oplock_request, &info, &fsp);
+               status = file_new(req, conn, &fsp);
+               if(!NT_STATUS_IS_OK(status)) {
+                       goto fail;
+               }
+
+               /*
+                * We're opening the stream element of a base_fsp
+                * we already opened. Set up the base_fsp pointer.
+                */
+               if (base_fsp) {
+                       fsp->base_fsp = base_fsp;
+               }
+
+               status = open_file_ntcreate(conn,
+                                           req,
+                                           fname,
+                                           &sbuf,
+                                           access_mask,
+                                           share_access,
+                                           create_disposition,
+                                           create_options,
+                                           file_attributes,
+                                           oplock_request,
+                                           &info,
+                                           fsp);
+
+               if(!NT_STATUS_IS_OK(status)) {
+                       file_free(req, fsp);
+                       fsp = NULL;
+               }
 
                if (NT_STATUS_EQUAL(status, NT_STATUS_FILE_IS_A_DIRECTORY)) {
 
+                       /* A stream open never opens a directory */
+
+                       if (base_fsp) {
+                               status = NT_STATUS_FILE_IS_A_DIRECTORY;
+                               goto fail;
+                       }
+
                        /*
                         * Fail the open if it was explicitly a non-directory
                         * file.
@@ -2731,6 +2947,8 @@ NTSTATUS create_file_unixpath(connection_struct *conn,
                goto fail;
        }
 
+       fsp->base_fsp = base_fsp;
+
        /*
         * According to the MS documentation, the only time the security
         * descriptor is applied to the opened file is iff we *created* the
@@ -2763,7 +2981,16 @@ NTSTATUS create_file_unixpath(connection_struct *conn,
 
                fsp->access_mask = FILE_GENERIC_ALL;
 
-               status = SMB_VFS_FSET_NT_ACL(fsp, sec_info_sent, sd);
+               /* Convert all the generic bits. */
+               security_acl_map_generic(sd->dacl, &file_generic_mapping);
+               security_acl_map_generic(sd->sacl, &file_generic_mapping);
+
+               if (sec_info_sent & (OWNER_SECURITY_INFORMATION|
+                                       GROUP_SECURITY_INFORMATION|
+                                       DACL_SECURITY_INFORMATION|
+                                       SACL_SECURITY_INFORMATION)) {
+                       status = SMB_VFS_FSET_NT_ACL(fsp, sec_info_sent, sd);
+               }
 
                fsp->access_mask = saved_access_mask;
 
@@ -2802,22 +3029,12 @@ NTSTATUS create_file_unixpath(connection_struct *conn,
                        }
                } else {
                        fsp->initial_allocation_size = smb_roundup(
-                               fsp->conn, (SMB_BIG_UINT)sbuf.st_size);
+                               fsp->conn, (uint64_t)sbuf.st_size);
                }
        }
 
        DEBUG(10, ("create_file_unixpath: info=%d\n", info));
 
-       /*
-        * Set fsp->base_fsp late enough that we can't "goto fail" anymore. In
-        * the fail: branch we call close_file(fsp, ERROR_CLOSE) which would
-        * also close fsp->base_fsp which we have to also do explicitly in
-        * this routine here, as not in all "goto fail:" we have the fsp set
-        * up already to be initialized with the base_fsp.
-        */
-
-       fsp->base_fsp = base_fsp;
-
        *result = fsp;
        if (pinfo != NULL) {
                *pinfo = info;
@@ -2836,33 +3053,41 @@ NTSTATUS create_file_unixpath(connection_struct *conn,
        DEBUG(10, ("create_file_unixpath: %s\n", nt_errstr(status)));
 
        if (fsp != NULL) {
-               close_file(fsp, ERROR_CLOSE);
+               if (base_fsp && fsp->base_fsp == base_fsp) {
+                       /*
+                        * The close_file below will close
+                        * fsp->base_fsp.
+                        */
+                       base_fsp = NULL;
+               }
+               close_file(req, fsp, ERROR_CLOSE);
                fsp = NULL;
        }
        if (base_fsp != NULL) {
-               close_file(base_fsp, ERROR_CLOSE);
+               close_file(req, base_fsp, ERROR_CLOSE);
                base_fsp = NULL;
        }
        return status;
 }
 
-NTSTATUS create_file(connection_struct *conn,
-                    struct smb_request *req,
-                    uint16_t root_dir_fid,
-                    const char *fname,
-                    uint32_t access_mask,
-                    uint32_t share_access,
-                    uint32_t create_disposition,
-                    uint32_t create_options,
-                    uint32_t file_attributes,
-                    uint32_t oplock_request,
-                    SMB_BIG_UINT allocation_size,
-                    struct security_descriptor *sd,
-                    struct ea_list *ea_list,
-
-                    files_struct **result,
-                    int *pinfo,
-                    SMB_STRUCT_STAT *psbuf)
+NTSTATUS create_file_default(connection_struct *conn,
+                            struct smb_request *req,
+                            uint16_t root_dir_fid,
+                            const char *fname,
+                            uint32_t create_file_flags,
+                            uint32_t access_mask,
+                            uint32_t share_access,
+                            uint32_t create_disposition,
+                            uint32_t create_options,
+                            uint32_t file_attributes,
+                            uint32_t oplock_request,
+                            uint64_t allocation_size,
+                            struct security_descriptor *sd,
+                            struct ea_list *ea_list,
+
+                            files_struct **result,
+                            int *pinfo,
+                            SMB_STRUCT_STAT *psbuf)
 {
        struct case_semantics_state *case_state = NULL;
        SMB_STRUCT_STAT sbuf;
@@ -2875,7 +3100,7 @@ NTSTATUS create_file(connection_struct *conn,
                  "create_disposition = 0x%x create_options = 0x%x "
                  "oplock_request = 0x%x "
                  "root_dir_fid = 0x%x, ea_list = 0x%p, sd = 0x%p, "
-                 "fname = %s\n",
+                 "create_file_flags = 0x%x, fname = %s\n",
                  (unsigned int)access_mask,
                  (unsigned int)file_attributes,
                  (unsigned int)share_access,
@@ -2883,7 +3108,7 @@ NTSTATUS create_file(connection_struct *conn,
                  (unsigned int)create_options,
                  (unsigned int)oplock_request,
                  (unsigned int)root_dir_fid,
-                 ea_list, sd, fname));
+                 ea_list, sd, create_file_flags, fname));
 
        /*
         * Get the file name.
@@ -2894,7 +3119,7 @@ NTSTATUS create_file(connection_struct *conn,
                 * This filename is relative to a directory fid.
                 */
                char *parent_fname = NULL;
-               files_struct *dir_fsp = file_fsp(root_dir_fid);
+               files_struct *dir_fsp = file_fsp(req, root_dir_fid);
 
                if (dir_fsp == NULL) {
                        status = NT_STATUS_INVALID_HANDLE;
@@ -2907,7 +3132,8 @@ NTSTATUS create_file(connection_struct *conn,
                         * Check to see if this is a mac fork of some kind.
                         */
 
-                       if (is_ntfs_stream_name(fname)) {
+                       if ((conn->fs_capabilities & FILE_NAMED_STREAMS) &&
+                                       is_ntfs_stream_name(fname)) {
                                status = NT_STATUS_OBJECT_PATH_NOT_FOUND;
                                goto fail;
                        }
@@ -2994,7 +3220,7 @@ NTSTATUS create_file(connection_struct *conn,
                         * also tries a QUERY_FILE_INFO on the file and then
                         * close it
                         */
-                       status = open_fake_file(conn, req->vuid,
+                       status = open_fake_file(req, conn, req->vuid,
                                                fake_file_type, fname,
                                                access_mask, &fsp);
                        if (!NT_STATUS_IS_OK(status)) {
@@ -3035,10 +3261,9 @@ NTSTATUS create_file(connection_struct *conn,
 
        if (file_attributes & FILE_FLAG_POSIX_SEMANTICS) {
                case_state = set_posix_case_semantics(talloc_tos(), conn);
-               file_attributes &= ~FILE_FLAG_POSIX_SEMANTICS;
        }
 
-       {
+       if (create_file_flags & CFF_DOS_PATH) {
                char *converted_fname;
 
                SET_STAT_INVALID(sbuf);
@@ -3049,6 +3274,15 @@ NTSTATUS create_file(connection_struct *conn,
                        goto fail;
                }
                fname = converted_fname;
+       } else {
+               if (psbuf != NULL) {
+                       sbuf = *psbuf;
+               } else {
+                       if (SMB_VFS_STAT(conn, fname, &sbuf) == -1) {
+                               SET_STAT_INVALID(sbuf);
+                       }
+               }
+
        }
 
        TALLOC_FREE(case_state);
@@ -3086,7 +3320,7 @@ NTSTATUS create_file(connection_struct *conn,
        DEBUG(10, ("create_file: %s\n", nt_errstr(status)));
 
        if (fsp != NULL) {
-               close_file(fsp, ERROR_CLOSE);
+               close_file(req, fsp, ERROR_CLOSE);
                fsp = NULL;
        }
        return status;