1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111 | -- --
-- package Copyright (c) Dmitry A. Kazakov --
-- GNAT.Sockets.Connection_State_Machine. Luebeck --
-- ASN1.Tagged_Values Spring, 2019 --
-- Interface --
-- Last revision : 18:41 01 Aug 2019 --
-- --
-- This library 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 library --
-- 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 library; if not, write to the Free Software Foundation, --
-- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
-- As a special exception, if other files instantiate generics from --
-- this unit, or you link this unit with other files to produce an --
-- executable, this unit does not by itself cause the resulting --
-- executable to be covered by the GNU General Public License. This --
-- exception does not however invalidate any other reasons why the --
-- executable file might be covered by the GNU Public License. --
--____________________________________________________________________--
--
-- ASN.1 encoding of tagged values
--
with GNAT.Sockets.Connection_State_Machine.ASN1.Lengths;
use GNAT.Sockets.Connection_State_Machine.ASN1.Lengths;
package GNAT.Sockets.Connection_State_Machine.ASN1.Tagged_Values is
--
-- Tagged_Data_Item -- ASN.1 encoded tagged value. A tagged object
-- contains another object for which it provides the
-- tag.
--
-- type Tagged_Name is new Tagged_Data_Item with record
-- Value : Implicit_String_Data_Item (100);
-- end record;
--
-- After input, the component Tag contains the actual value of the tag
-- and Value does the input string. In ASN.1 notation it could be put as
--
-- [x] IMPLICIT OCTET STRING
--
type Public_Tagged_Data_Item is
abstract new Abstract_ASN1_Data_Item with
record
Tag : Tag_Type;
end record;
type Tagged_Data_Item is new Public_Tagged_Data_Item with private;
--
-- Enumerate -- Fake stream I/O procedure
--
procedure Enumerate
( Stream : access Root_Stream_Type'Class;
Item : Tagged_Data_Item
);
for Tagged_Data_Item'Write use Enumerate;
--
-- Encode -- Overrides ...Connection_State_Machine.ASN1...
--
procedure Encode
( Item : Tagged_Data_Item;
Data : in out Stream_Element_Array;
Pointer : in out Stream_Element_Offset
);
--
-- Feed -- Implementation of the feed operation
--
procedure Feed
( Item : in out Tagged_Data_Item;
Data : Stream_Element_Array;
Pointer : in out Stream_Element_Offset;
Client : in out State_Machine'Class;
State : in out Stream_Element_Offset
);
--
-- Get_Size -- Overriding
--
function Get_Size (Item : Tagged_Data_Item) return Natural;
--
-- Initialized -- Notification of object initialization
--
-- Item - The object
--
-- This procedure is called when all components of the object have been
-- enumerated, so that some additional initialization could be finished
-- with all components known. The default implementation does nothing.
--
procedure Initialized (Item : in out Tagged_Data_Item);
--
-- Is_Implicit -- Overrides ...Connection_State_Machine.ASN1...
--
function Is_Implicit (Item : Tagged_Data_Item) return Boolean;
private
type Tagged_Data_Item is new Public_Tagged_Data_Item with record
Selected : Measured_Data_Item;
Value : Abstract_ASN1_Data_Item_Ptr;
Initialized : Boolean := False;
end record;
type Tagged_Data_Item_Ptr is access all Tagged_Data_Item'Class;
function Always_Constructed (Item : Tagged_Data_Item) return Boolean;
function Self (Item : Tagged_Data_Item'Class)
return Tagged_Data_Item_Ptr;
end GNAT.Sockets.Connection_State_Machine.ASN1.Tagged_Values;
|