Руководство Разработчика для Cisco Cisco Firepower Management Center 2000

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4-104
FireSIGHT eStreamer Integration Guide
 
Chapter 4      Understanding Discovery & Connection Data Structures 
  Host Discovery and Connection Data Blocks
The following diagram shows the structure of a User Attribute Value data block:
The following table describes the fields of the User Attribute Value data block.
Byte
0
1
2
3
Bit
0 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
User Attribute Value Data Block Type (82)
User Attribute Value Block Length
IP Address 
Range Blocks
Generic List Block Type (31)
Generic List Block Length
IP Address Range Specification Data Blocks...
Source ID
Source Type
Attribute ID
Value
BLOB Block Type (10)
BLOB Block Length
Value...
Table 4-61
User Attribute Value Data Block Fields 
Field
Number of 
Bytes
Description
User Attribute Value 
Data Block Type
uint32
Initiates a User Attribute Value data block. This value is always 
82
.
User Attribute Value 
Block Length
uint32
Total number of bytes in the Attribute Value data block, including 
eight bytes for the user attribute value block type and length 
fields, plus the number of bytes of user attribute value data that 
follows.
Generic List Block 
Type
uint32
Initiates a Generic List data block. This value is always 
31
.
Generic List Block 
Length
uint32
Number of bytes in the Generic List block and encapsulated data 
blocks. This number includes the eight bytes of the generic list 
block header fields, plus the number of bytes in all of the 
encapsulated data blocks.
IP Address Range 
Specification Data 
Blocks
variable
IP Address Range Specification data blocks (each with a start IP 
address and end IP address) up to the maximum number of bytes 
in the list block length.