| | | |
+---------+---------+---------+ | |
| | | | | |
| | | | | |
| | State e | State g | | State c |
| | | | | |
| | | | | |
| +---------+---------+---------+ |
| | | |
| | | |
| State b | State f | |
| | | |
| | | Compartment 2 |
| +---------+-------------------+
| |
| |
| |
| |
| Compartment 1 |
+-----------------------------+
Figure 1: States created in the three compartments
4.4. Accessing RFC 3485 State
This section gives assembly code to test accessing SIP-SDP static
dictionary state [3]. The code first accesses the state and then
outputs the result.
at (32)
:input pad (1)
:input2 pad (1)
:input3 pad (1)
at (128)
STATE-ACCESS (sip_dictionary, 20, 0xcfe, 1, input, 0)
STATE-ACCESS (sip_dictionary, 6, 0xcff, 1, input2, 0)
STATE-ACCESS (sip_dictionary, 12, 0xd00, 1, input3, 0)
OUTPUT (input, 3)
END-MESSAGE (0, 0, 0, 0, 0, 0, 0)
:sip_dictionary
byte (0xfb, 0xe5, 0x07, 0xdf, 0xe5, 0xe6)
byte (0xaa, 0x5a, 0xf2, 0xab, 0xb9, 0x14)
byte (0xce, 0xaa, 0x05, 0xf9, 0x9c, 0xe6)
byte (0x1b, 0xa5)
The output of the code is 0x5349 50, and the cost is 11 UDVM cycles.
4.5. Bytecode State Creation
This section gives assembly code to test storing bytecode using
END-MESSAGE and later loading the bytecode using a partial state
identifier within the SigComp header. The assembly code is designed
to test the following cases:
1. The bytes to be saved are changed after the state create request
has been made.
2. The uploaded bytecode is modified before execution.
3. The bytecode is loaded using the partial state identifier and is
modified before execution.
4. The bytecode is loaded to an address lower than 128, using the
partial state identifier.
5. The bytecode is loaded using the partial state identifier. Part
of the loaded memory is reserved area, which is overwritten after
loading the bytecode.
6. The loading of the bytecode fails because the partial state
identifier is too short.
at (30)
:save_area1
set (saved_instr1, (save_area1 + (code_start2 - start_saved))) ; = 33
at (80)
:save_area2
set (saved_instr2, (save_area2 + (code_start2 - start_saved))) ; = 83
at (128)
:code_start
COPY (start_saved, saved_len, save_area1)
; copy ’ok2’, OUTPUT (save_area2,3) END-MESSAGE
; to position 30 and create as state
STATE-CREATE (saved_len, save_area1, saved_instr1, 6, 10)
set (modify1, (save_area1 + 5)) ; = 35
LOAD (modify1, 0x1e03)
; modify save_area2 to be save_area1 in the
; created state
COPY (start_saved, saved_len, save_area2)
STATE-CREATE (saved_len, save_area2, saved_instr2, 20, 10)
STATE-CREATE (saved_len, save_area2, saved_instr2, 12, 10)
; copy ’ok2’, OUTPUT (save_area2,3) END-MESSAGE
; to position 80 and create as state twice with
; min access len 20 and 12
JUMP (modify)
:ok1
byte (0x4f, 0x4b, 0x31)
set (after_output_minus1, (after_output - 1))
:modify
INPUT-BYTES (1, after_output_minus1, decompression_failure)
; Input overwrites the next instruction
OUTPUT (ok1, 3) ; Now is OUTPUT (ok1, 2) so output is 0x4f4b
:after_output
; Save from ok1 to the opcode of END-MESSAGE
set (modify_len, ((after_output + 1) - ok1)) ; = 13
END-MESSAGE (0, 0, modify_len, ok1, modify, 6, 10)
; Save ’ok1’, INPUT-BYTES, OUTPUT as state
set (saved_len, (end_saved - start_saved)) ; = 8
:start_saved
byte (0x4f, 0x4b, 0x32)
:code_start2
; Translated bytecode for OUTPUT (save_area2, 3)
byte (0x22, 0xa0, 0x50, 0x03)
; Translated bytecode for END-MESSAGE (0, 0, 0, 0, 0, 0, 0)
; The zeros do not need to be sent because UDVM is initialised to 0
byte (0x23)
:end_saved
:decompression_failure
The outputs and cycle usages are:
Message Output Cycles
1 0x4f4b 66
2 0x4f4b 31 7
3 0x4f4b 32 5
4 0x0000 32 5
5 None Decompression failure
First message: mnemonic code annotated above
0xf804 6112 a0be 081e 2008 1e21 060a 0e23 be03 12a0 be08 a050 2008
0xa050 a053 140a 2008 a050 a053 0c0a 1606 004f 4b31 1c01 a0b3 fc22
0xa0a8 0323 0000 0da0 a8a0 ab06 0a4f 4b32 22a0 5003 2302
Second message: access and run last state saved by previous message -
’ok1’, INPUT-BYTES, OUTPUT, END-MESSAGE.
0xf905 b88c e72c 9103
Third message: access and run state from save_area2 with 12 bytes of
state identifier - ’ok2’, INPUT-BYTES, OUTPUT, END-MESSAGE.
0xfb24 63cd ff5c f8c7 6df6 a289 ff
Fourth message: access and run state from save_area1. The state is
’ok2’, INPUT-BYTES, OUTPUT, END-MESSAGE but the first two bytes
should be overwritten when initialising UDVM memory.
0xf95b 4b43 d567 83
Fifth message: attempt to access state from save_area2 with fewer
than 20 bytes of state identifier.
0xf9de 8126 1199 1f
5. Security Considerations
This document describes torture tests for the SigComp protocol RFC
3320 [2]. Consequently, the security considerations for this
document match those of SigComp.
In addition, the torture tests include tests for a significant number
of "boundary and error cases" for execution of the UDVM bytecode.
Boundary and error problems are common vectors for security attacks,
so ensuring that a UDVM implementation executes this set of torture
tests correctly should contribute to the security of the
implementation.
6. Acknowledgements
Thanks to Richard Price and Pekka Pessi for test contributions and to
Pekka Pessi and Cristian Constantin, who served as committed working
group document reviewers.
7. Normative References
[1] Surtees, A. and M. West, "Signaling Compression (SigComp) Users’
Guide", RFC 4464, May 2006.
[2] Price, R., Bormann, C., Christoffersson, J., Hannu, H., Liu, Z.,
and J. Rosenberg, "Signaling Compression (SigComp)", RFC 3320,
January 2003.
[3] Garcia-Martin, M., Bormann, C., Ott, J., Price, R., and A.B.
Roach, "The Session Initiation Protocol (SIP) and Session
Description Protocol (SDP) Static Dictionary for Signaling
Compression (SigComp)", RFC 3485, February 2003.
[4] Roach, A.B., "A Negative Acknowledgement Mechanism for Signaling
Compression", RFC 4077, May 2005.
Appendix A. UDVM Bytecode for the Torture Tests
The following sections list the raw UDVM bytecode generated for each
test. The bytecode is presented in the form of a complete SigComp
message, including the appropriate header. It is followed by input
messages, the output they produce, and where the decompression
succeeds the number of cycles used.
In some cases, the test is designed to be run several times with
different compressed messages appended to the code. In the cases
where multiple whole messages are used for a test, e.g.,
Appendix A.2.3, these are supplied. In the case where decompression
failure occurs, the high-level reason for it is given as a reason
code defined in NACK [4].
Note that the different assemblers can output different bytecode for
the same piece of assembly code, so a valid assembler can produce
results different from those presented below. However, the following
bytecode should always generate the same results on any UDVM.
A.1. Instructions
A.1.1. Bit Manipulation
0xf80a 7116 a07f 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
0x0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
0x0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
0x0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
0x0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
0x01c0 00ff 8055 5502 202a 0321 0420 0305 21ff 2286 0401 20c0 ff02
0x2060 0320 0421 6005 2061 2286 0423
Input: None
Output: 0x0150 0000 febf 0000
Cycles: 22
A.1.2. Arithmetic
0xf80a a11c 01a0 450b 0722 0116 a077 0000 0000 0000 0000 0000 0000
0x0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
0x0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
0x0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
0x0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
0x06c0 00ff 9941 0720 0108 20a3 e909 20a0 650a 200b 2286 0406 21c0
0xff07 2162 0821 6109 2061 0a21 6222 8604 23
Input: 0x00
Output: 0x0000 0000 0000 0004
Cycles: 25
Input: 0x01
DECOMPRESSION-FAILURE DIV_BY_ZERO
Input: 0x02
DECOMPRESSION-FAILURE DIV_BY_ZERO
A.1.3. Sorting
0xf80d c10c 8802 170b 8802 1722 a12e 2d23 0000 0000 0000 0000 0000
0x0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
0x0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
0x0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
0x0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
0x0000 0a00 0a00 1100 0700 1600 0300 0300 0300 1300 0100 1000 0e00
0x0800 0200 0d00 1400 1200 1700 0f00 1500 0c00 0600 096e 6720 6975
0x6920 7469 742c 2079 6f75 2720 5346 6f6e 6761 2075 7272 646f 2074
0x6f6e 2e2e 0070 6570 206e 7472 656e 69
Input: None
Output: 0x466f 7264 2c20 796f 7527 7265 2074 7572 6e69 6e67
0x2069 6e74 6f20 6120 7065 6e67 7569 6e2e 2053 746f
0x7020 6974 2e
Cycles: 371
A.1.4. SHA-1
0xf808 710d a0c3 03a0 4422 a044 140d a0c6 38a0 4422 a044 140e 86a0
0xfe0e a042 a0ff 0da0 fe8e a044 22a0 4414 0e86 a0ff 0ea0 42a1 070d
0xa0ff a280 a0ff 22a0 ff14 2300 0000 0000 0000 6162 6361 6263 6462
0x6364 6563 6465 6664 6566 6765 6667 6866 6768 6967 6869 6a68 696a
0x6b69 6a6b 6c6a 6b6c 6d6b 6c6d 6e6c 6d6e 6f6d 6e6f 706e 6f70 7161
0x3031 3233 3435 3637
Input: None
Output: 0xa999 3e36 4706 816a ba3e 2571 7850 c26c 9cd0 d89d
0x8498 3e44 1c3b d26e baae 4aa1 f951 29e5 e546 70f1
0x12ff 347b 4f27 d69e 1f32 8e6f 4b55 73e3 666e 122f
0x4f46 0452 ebb5 6393 4f46 0452 ebb5 6393 4f46 0452
Cycles: 17176
A.1.5. LOAD and MULTILOAD
0xf803 610e 87a0 840e a082 c080 0ec0 80a0 860e c084 c084 2287 081c
0x01a0 4127 0820 0206 203c 0f60 03a0 a2a0 b187 0f60 042a 87c0 80c0
0x8422 8708 23
Input: 0x00
Output: 0x0084 0084 0086 0086 002a 0080 002a 002a
Cycles: 36
Input: 0x01
DECOMPRESSION-FAILURE MULTILOAD_OVERWRITTEN
Input: 0x02
DECOMPRESSION-FAILURE MULTILOAD_OVERWRITTEN
A.1.6. COPY
0xf803 910e 208e 0e86 860e a042 8712 2087 210e 8680 4100 1286 a055
0xa041 2220 a077 0e86 200e a042 3015 2004 a041 0112 2004 3022 3004
0x1230 042e 2220 0223
Input: None
Output: 0x4040 4040 4040 4040 4040 4040 4040 4040 4040 4040
0x4040 4040 4040 4040 4040 4040 4141 4141 4141 4141
0x4141 4141 4141 4141 4141 4141 4141 4141 4141 4141
0x4141 4141 4141 4141 4141 4141 4141 4141 4141 4141
0x4141 4141 4141 4141 4141 4141 4141 4141 4141 4141
0x4141 4141 4141 4141 4141 4141 4141 4141 4141 5541
0x4243 4443 44
Cycles: 365
A.1.7. COPY-LITERAL and COPY-OFFSET
0xf806 110e 2080 4100 0e86 860e a042 870e a044 2113 2087 2222 8608
0x0ea0 44a0 9c13 2002 2222 a09c 020e 86a0 480e a042 a052 0ea0 44a0
0x5215 a048 0aa0 4101 1402 0622 0ea0 4606 1463 0422 2261 0a0e a044
0xa050 1404 0422 22a0 4402 1405 0422 22a0 4402 2260 0a23
Input: None
Output: 0x4141 4141 0061 4141 4141 494A 4142 4344 494A 4142
0x004A 004E 4748 4845 4647 4748 4546
Cycles: 216
A.1.8. MEMSET
0xf801 810e 8687 0ea0 42a0 8115 86a0 8100 0115 a081 0f86 0f22 8710
0x23
Input: None
Output: 0x8040 4f5e 6d7c 8b9a a9b8 c7d6 e5f4 0312
Cycles: 166
A.1.9. CRC
0xf801 8115 a046 1801 0115 a05e 1487 011c 02a0 4413 1b62 a046 2c0e
0x23
Input: 0x62cb
Output: None
Cycles: 95
Input: 0xabcd
DECOMPRESSION FAILURE USER_REQUESTED (CRC mismatch)
A.1.10. INPUT-BITS
0xf801 511d 62a0 4614 22a0 4602 0622 010a 2207 0622 0116 ee23
Input: 0x932e ac71
Output: 0x0000 0002 0002 0013 0000 0003 001a 0038
Cycles: 66
A.1.11. INPUT-HUFFMAN
0xf801 d11e a046 1c02 6200 6262 6200 ff00 22a0 4602 0622 010a 2207
0x0622 0116 e623
Input: 0x932e ac71 66d8 6f
Output: 0x0000 0003 0008 04d7 0002 0003 0399 30fe
Cycles: 84
A.1.12. INPUT-BYTES
0xf802 710e 86a0 480e a042 a04c 1d62 a046 1d22 a046 0206 2202 0a22
0x071c 62a0 480e 22a0 4862 0622 0116 e523
Input: 0x932e ac71 66d8 6fb1 592b dc9a 9734 d847 a733 874e
0x1bcb cd51 b5dc 9659 9d6a
Output: 0x0000 932e 0001 b166 d86f b100 1a2b 0003 9a97 34d8
0x0007 0001 3387 4e00 08dc 9651 b5dc 9600 599d 6a
Cycles: 130
A.1.13. Stack Manipulation
0xf814 110e a046 8610 0210 6010 a042 2286 0811 8611 6311 a046 2286
0x0816 2800 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
0x0000 0000 0000 0000 0000 0000 0000 000e a046 200e a048 a140 0724
0x8818 3400 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
0x0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
0x0018 6400 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
0x0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
0x0000 0000 0000 0000 0000 0000 000e a046 a17f 0ea1 7f1a 0fa1 b003
0x0180 c001 8f19 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
0x0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
0x0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
0x0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
0x0000 0000 0000 0000 0000 0023
Input: None
Output: 0x0003 0002 0001 0042 0042 0000 0001 0001
Cycles: 40
A.1.14. Program Flow
0xf803 f10e a044 040e 86a0 9207 20a0 9022 a043 0116 6006 2101 0e86
0xa084 0720 a0a1 22a0 4301 1761 0660 f106 0722 010e 86a0 8407 20a0
0xb622 a043 011a 0462 0860 9fdc f123
Input: None
Output: 0x0001 0102 0203 0304 0405 0506 0707 0708 0808 0909
Cycles: 131
A.1.15. State Creation
0xf809 411c 01a0 45ff 0422 0b17 628f 0d06 0620 0aa1 0a00 1400 0422
0x0117 628f 0c06 0620 0a88 0014 0004 2201 1762 8f16 0606 1c01 a047
0x9fd2 21a0 4863 12a0 e363 a048 0422 0117 628f 0a06 0621 a0e3 0604
0x2201 1762 8f0e 0606 2300 000a 8800 1400 2300 0000 0000 0000 437a
0xe80a 0fdc 1e6a 87c1 b62a 7676 b973 318c 0ef5 0000 0000 0000 0000
0x00c0 cc3f ee79 bcfc 8fd1 0865 e803 52ee 2977 17df 57
Input: 0x01
Output: None
Cycles: 23
Input: 0x02
Output: None
Cycles: 14
Input: 0x03
Output: None
Cycles: 24
Input: 0x0405
DECOMPRESSION-FAILURE INVALID_STATE_ID_LENGTH
Input: 0x0415
DECOMPRESSION-FAILURE INVALID_STATE_ID_LENGTH
Input: 0x0406
Output: None
Cycles: 23
Input: 0x09
Output: None
Cycles: 34
Input: 0x1e06
Output: None
Cycles: 46
Input: 0x1e07
Output: None
Cycles: 47
Input: 0x1e14
Output: None
Cycles: 60
A.1.16. STATE-ACCESS
Set up bytecode:
0xf819 0123 0000 1089 0014 0000 0000 0000 0000 0000 0000 0000 0000
0x0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
0x0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
0x0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
0x0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
0x0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
0x0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
0x0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
0x0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
0x0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
0x0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
0x0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
0x0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
0x0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
0x0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0022 a20c
0x0423 0000 0000 0000 0074 6573 74
Input: None
0xf819 411c 01a0 45ff 1762 0106 0d1c 1f89 1400 0000 891f 8914 0c04
0xa046 0022 a046 0416 a146 1762 0306 101b 1f87 1400 0000 0016 a136
0x1f89 1306 04a0 4600 16a1 2b1f 8914 0c05 a046 0016 a120 0000 0000
0x0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
0x0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
0x0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
0x0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
0x0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
0x0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
0x0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
0x0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
0x0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
0x0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
0x0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0023 0000 0000
0x0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 005d f8bc
0x3e20 93b5 abe1 f170 1342 4ce7 fe05 e069 39
Input: 0x00
Output: 0x7465 7374
Cycles: 26
Input: 0x01
Output: 0x7465 7374
Cycles: 15
Input: 0x02
DECOMPRESSION-FAILURE STATE_NOT_FOUND
Input: 0x03
DECOMPRESSION-FAILURE STATE_NOT_FOUND (len < min_acc_len)
Input: 0x04
DECOMPRESSION-FAILURE STATE_TOO_SHORT
A.2. Dispatcher Tests
A.2.1. Useful Values
0xf805 f10e 8620 0ea0 4221 1c01 a047 f817 4263 f306 f317 4300 ed06
0x0c17 4400 e73f e717 44a3 c0e1 07e1 1c01 a047 9fda 0623 4007 2301
0x1220 0163 1c01 a049 9fca 0ea0 4443 0622 0308 2208 0622 a3e8 0822
0x4106 2264 0722 a358 1220 6220 2300 00a3 c086 8706
Input: 1 byte of SigComp version
Output: None
Cycles: 968
0xf93a db1d 3d20 aa
Input: 1 byte of SigComp version then 0x0000
Output: None
Cycles: cycles_per_bit * 1080
Input: 1 byte of SigComp version then 0x0001
DECOMPRESSION-FAILURE CYCLES_EXHAUSTED
Input: 1 byte of SigComp version then 0x0100
DECOMPRESSION-FAILURE SEGFAULT
A.2.2. Cycles Checking
0xf801 a10f 8604 2029 0022 12a0 4402 6014 02a0 6423 22a0 4402 0622
0x0116 ef
Input: None
DECOMPRESSION-FAILURE CYCLES_EXHAUSTED
A.2.3. Message-based Transport
0xf8
Input: None
DECOMPRESSION-FAILURE MESSAGE_TOO_SHORT
0xf800
Input: None
DECOMPRESSION-FAILURE MESSAGE_TOO_SHORT
0xf800 e106 0011 2200 0223 0000 0000 0000 01
Input: None
Output: decompression_memory_size
Cycles: 5
0xf800 f106 0011 2200 0223 0000 0000 0000 01
Input: None
DECOMPRESSION-FAILURE MESSAGE_TOO_SHORT
0xf800 e006 0011 2200 0223 0000 0000 0000 01
Input: None
DECOMPRESSION-FAILURE INVALID_CODE_LOCATION
0xf800 ee06 0011 2200 0223 0000 0000 0000 01
Input: None
Output: decompression_memory_size
Cycles: 5
A.2.4. Stream-based Transport
0xffff f801 7108 0002 2200 0222 a092 0523 0000 0000 0000 00ff 00ff
0x03ff ffff ffff ffff f801 7e08 0002 2200 0222 a3d2 0523 0000 0000
0x0000 00ff 04ff ffff ffff ffff ffff ff
The above stream contains two messages:
Output: decompression_memory_size
Cycles: 11
Output: decompression_memory_size
Cycles: 11
0xf8ff ff
Input: None
DECOMPRESSION-FAILURE MESSAGE_TOO_SHORT
0xf800 ffff
Input: None
DECOMPRESSION-FAILURE MESSAGE_TOO_SHORT
0xf801 8108 0002 2200 0222 a092 0523 ffff 0000 0000 0000 00ff 00ff
0x03ff ffff
Input: None
DECOMPRESSION-FAILURE MESSAGE_TOO_SHORT
0xf801 7008 0002 2200 0222 a092 0523 ffff 0000 0000 0000 00ff 04ff
0xffff ff
Input: None
DECOMPRESSION-FAILURE INVALID_CODE_LOCATION
A.2.5. Input Past the End of a Message
0xf803 210e 86a0 460e a042 a04d 1d09 a046 0a1c 07a0 4606 001d 07a0