Cisco Cisco Firepower Management Center 2000 Entwickleranleitung

Seite von 536
 
3-28
FireSIGHT eStreamer Integration Guide
 
Chapter 3      Understanding Intrusion and Correlation Data Structures 
  Intrusion Event and Metadata Record Types
The following table describes the fields in the Access Control Policy Name data block.
Access Control Rule ID Record Metadata
The eStreamer service transmits metadata containing information about the access control rule that 
triggered an intrusion event or connection event within an Access Control Rule ID record, the format of 
which is shown below. Access control rule metadata is sent when the Version 4 metadata flag—bit 20 in 
the Request Flags field of a request message—is set. See 
.) Note that the Record 
Type field, which appears after the Message Length field, has a value of 
119
, indicating an Access 
Control Rule ID record. It contains a Rule ID data block, block type 15 in the series 2 set of data blocks.
Access Control Policy Name Data Block (14)
Access Control Policy Name Data Block Length
Access Control Policy UUID
String Block Type (0)
String Block Length
Access Control Policy Name...
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
Table 3-15
Access Control Policy Name Data Block Fields 
Field
Data Type
Description
Access Control Policy 
Name Data Block Type
uint32
Initiates an Access Control Policy Name data block. This 
value is always 
14
. The block type is a series 2 block.
Access Control Policy 
Name Data Block Length
uint32
Length of the data block. Includes the number of bytes of 
data plus the 8 bytes in the two data block header fields.
Access Control Policy 
UUID
uint8[16]
An ID number that acts as a unique identifier for the access 
control policy associated with the intrusion event or 
connection event
String Block Type
uint32
Initiates a String data block containing the name of the 
access control policy. This value is always 
0
.
String Block Length
uint32
The number of bytes included in the access control policy 
name String data block, including eight bytes for the block 
type and header fields plus the number of bytes in the 
access control policy name.
Access Control Policy 
Name
string
The access control policy name.