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Alex_P
Joined: 07 Apr 2008 Posts: 12
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Posted: Mon Jul 14, 2008 5:11 pm Post subject: MAP_CANCEL_LOCATION - считает, что неправильная длина... |
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Quote: | 80 81 3f 83 de c0 1b 10 09 80 03 0e 19 0b 12 06 00 11 04 97 21 43 65 87 f0 0b 12 07 00 11 04 97 21 43 65 87 f9 3a 62 38 48 04 01 00 00 00 6b 1a 28 18 06 07 00 11 86 05 01 01 01 a0 0d 60 0b a1 09 06 07 04 00 00 01 00 02 01 6c 14 a1 12 02 01 01 02 01 03 30 0a 04 05 21 43 65 87 09 0a 01 01 07 26 |
Получается вот что:
Code: | Seventest online decoder
MTP2: Russian specifications, 2000
0 .0000000 Backward sequence number...... 0 Dec
1....... Backward indicator bit........ 1 Dec
1 .0000001 Forward sequence number....... 1 Dec
1....... Forward indicator bit......... 1 Dec
2 ..111111 Length indicator.............. 63 Dec
00...... Spare......................... Spare
MTP3: Russian specifications, 2000
3 ....0011 Service indicator............. SCCP
..00.... Spare......................... 0 Dec
10...... Network indicator............. National network
4 ***b14** Destination point code........ 222 Dec
***b14** Originating point code........ 111 Dec
0001.... Signalling link selection..... 1 Dec
SCCP: Russian specifications, 2001
8 00001001 Message type.................. UDT
-- Protocol class
9 ....0000 Protocol class................ Class 0
1000.... Message handling.............. Return on error
10 00000011 Pointer....................... 3 Dec
11 00001110 Pointer....................... 14 Dec
12 00011001 Pointer....................... 25 Dec
13 00001011 Length........................ 11 Dec
-- Called party address
14 .......0 Point code ind................ PC absent
......1. SSN ind....................... SSN present
..0100.. Global title ind.............. Transl. type & Numb. plan & Enc. scheme
.0...... Routing ind................... Route on GT
0....... Reserved for national use..... 0 Hex
15 00000110 Subsystem number.............. HLR
16 00000000 Translation type.............. 0 Hex
17 ....0001 Encoding scheme............... BCD, odd number of digits
0001.... Numbering plan................ ISDN/Telephony Numbering plan
18 .0000100 Nature of address ind......... International number
0....... Spare......................... 0
19 ***b44** Address signal................ 79123456780
1111.... Filler........................ 15 Dec
25 00001011 Length........................ 11 Dec
-- Calling party address
26 .......0 Point code ind................ PC absent
......1. SSN ind....................... SSN present
..0100.. Global title ind.............. Transl. type & Numb. plan & Enc. scheme
.0...... Routing ind................... Route on GT
0....... Reserved for national use..... 0 Hex
27 00000111 Subsystem number.............. VLR
28 00000000 Translation type.............. 0 Hex
29 ....0001 Encoding scheme............... BCD, odd number of digits
0001.... Numbering plan................ ISDN/Telephony Numbering plan
30 .0000100 Nature of address ind......... International number
0....... Spare......................... 0
31 ***b44** Address signal................ 79123456789
1111.... Filler........................ 15 Dec
37 00111010 Length........................ 58 Dec
-- Data
TCAP: ITU-T Q.773 White book, 1997
-- Message type
38 ***b8*** TAG: class=1 code=2 type=1
39 ***b8*** Length........................ 56 Dec
-- BEGIN
40 ***b8*** TAG: class=1 code=8 type=0
41 ***b8*** Length........................ 4 Dec
-- Originating transaction id
42 ***B4*** .............................. 1000000 Hex
46 ***b8*** TAG: class=1 code=11 type=1
47 ***b8*** Length........................ 26 Dec
-- Dialogue portion
-- Dialogue portion
48 ***b8*** TAG: class=0 code=8 type=1
49 ***b8*** Length........................ 24 Dec
-- External
50 ***b8*** TAG: class=0 code=6 type=0
51 ***b8*** Length........................ 7 Dec
-- Dialogue as id
-- Object id
52 0....... Extension..................... Last octet
.0000000 OrgEntity..................... ITU-T recommendation
53 00010001 Recommendation letter......... Q
54 ***b16** Recomendation number.......... 773 Dec
56 00000001 Modules....................... AS
57 00000001 AS............................ Dialogue AS
58 00000001 Version....................... 1 Dec
59 ***b8*** TAG: class=2 code=0 type=1
60 ***b8*** Length........................ 13 Dec
-- Dialogue PDU
61 ***b8*** TAG: class=1 code=0 type=1
62 ***b8*** Length........................ 11 Dec
-- Dialogue request
63 ***b8*** TAG: class=2 code=1 type=1
64 ***b8*** Length........................ 9 Dec
-- Application context name
65 ***b8*** TAG: class=0 code=6 type=0
66 ***b8*** Length........................ 7 Dec
-- ACN object id
-- Object id
67 0....... Extension..................... Last octet
.0000100 OrgEntity..................... ITU-T identified-org
68 00000000 Standard...................... ETSI
69 ***b8*** ETSI.......................... Mobile domain
70 00000001 Type of network............... GSM network
71 00000000 Modules....................... AC
72 00000010 Application context........... Location cancellation
73 00000001 Version....................... 1 Dec
74 ***b8*** TAG: class=1 code=12 type=1
75 ***b8*** Length........................ 20 Dec
76 ***b8*** TAG: class=2 code=1 type=1
77 ***b8*** Length........................ 18 Dec
-- Invoke component
78 ***b8*** TAG: class=0 code=2 type=0
79 ***b8*** Length........................ 1 Dec
-- Invoke id
80 00000001 Invoke id..................... 01
81 ***b8*** TAG: class=0 code=2 type=0
82 ***b8*** Length........................ 1 Dec
83 00000011 Local operation code.......... CANCEL LOCATION
Container: pMAP_ComponentPortion
Wrong Component Length. Must be: 144:bits Decoded: 48:bits
Undecoded data: 30 0A 04 05 21 43 65 87 09 0A 01 01
MAP: 3GPP TS 29.002 Ver 6.12.0, 2005
Remainder:
07 26
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Непонятно почему проблема с длиной, ведь после:
Code: |
76 ***b8*** TAG: class=2 code=1 type=1
77 ***b8*** Length........................ 18 Dec
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Действительно идёт 18 октетов...
Где грабли? |
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Support Сотрудник Seventest
Joined: 30 Sep 2005 Posts: 355 Location: Санкт-Петербург
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Posted: Tue Jul 15, 2008 1:19 pm Post subject: Re: MAP_CANCEL_LOCATION - считает, что неправильная длина... |
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Обратите внимание на:
...
Code: | SCCP: Russian specifications, 2001
8 00001001 Message type.................. UDT
-- Protocol class
9 ....0000 Protocol class................ Class 0
1000.... Message handling.............. Return on error
10 00000011 Pointer....................... 3 Dec
11 00001110 Pointer....................... 14 Dec
12 00011001 Pointer....................... 25 Dec
13 00001011 Length........................ 11 Dec
-- Called party address
14 .......0 Point code ind................ PC absent
......1. SSN ind....................... SSN present
..0100.. Global title ind.............. Transl. type & Numb. plan & Enc. scheme
.0...... Routing ind................... Route on GT
0....... Reserved for national use..... 0 Hex
15 00000110 Subsystem number.............. HLR
16 00000000 Translation type.............. 0 Hex
17 ....0001 Encoding scheme............... BCD, odd number of digits
0001.... Numbering plan................ ISDN/Telephony Numbering plan
18 .0000100 Nature of address ind......... International number
0....... Spare......................... 0
19 ***b44** Address signal................ 79123456780
1111.... Filler........................ 15 Dec
25 00001011 Length........................ 11 Dec
-- Calling party address
26 .......0 Point code ind................ PC absent
......1. SSN ind....................... SSN present
..0100.. Global title ind.............. Transl. type & Numb. plan & Enc. scheme
.0...... Routing ind................... Route on GT
0....... Reserved for national use..... 0 Hex
27 00000111 Subsystem number.............. VLR
28 00000000 Translation type.............. 0 Hex
29 ....0001 Encoding scheme............... BCD, odd number of digits
0001.... Numbering plan................ ISDN/Telephony Numbering plan
30 .0000100 Nature of address ind......... International number
0....... Spare......................... 0
31 ***b44** Address signal................ 79123456789
1111.... Filler........................ 15 Dec
37 00111010 Length........................ 58 Dec |
У Вас длина всего сообщения 98, однако здесь у Вас указана длина уже 96 (38+58=96)
Далее:
Code: |
TCAP: ITU-T Q.773 White book, 1997
-- Message type
38 ***b8*** TAG: class=1 code=2 type=1
39 ***b8*** Length........................ 56 Dec |
Здесь опять то же самое: 40+56=96
в рекомендации
CancelLocationArg ::= [3] SEQUENCE {
identity Identity,
cancellationType CancellationType OPTIONAL,
extensionContainer ExtensionContainer OPTIONAL,
...}
Вы забыли про [3] и пытаетесь использовать конструкцию
CancelLocationArg ::= SEQUENCE {
identity Identity,
cancellationType CancellationType OPTIONAL,
extensionContainer ExtensionContainer OPTIONAL,
...}
Декодер ищет CancelLocationArg по тэгу 0xa3, соответственно, по
предлагаемому в хексе тэгу 0x30 он его найти не может, да, собственно, и не должен |
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