Detailed Description
This descriptor offers 3 dynamic offsets, IP protocol field and a 6-bit color field. The packet descriptor is suited for applications doing NetFlow and IDS. This descriptor offers a 38-bit color field, which is useful when identifying billions of flows or alternatively holding the hash value.
Note: The wireLength field has been sacrificed so in case of slicing the original packet length is unknown.
Data Structures | |
| struct | NtDyn2Descr_s |
| NT Variable descriptor 2. More... | |
Typedefs | |
| typedef struct NtDyn2Descr_s | NtDyn2Descr_t |
| NT Variable descriptor 2. More... | |
Data Structure Documentation
| struct NtDyn2Descr_s |
NT Variable descriptor 2.
- Examples:
- net/capfileconvert/capfileconvert_example.c.
Definition at line 57 of file pktdescr_dyn2.h.
Data Fields | |
| uint64_t | capLength:14 |
| uint64_t | offset0:10 |
| uint64_t | offset1:10 |
| uint64_t | ipProtocol:8 |
| uint64_t | rxPort:6 |
| uint64_t | descrFormat:8 |
| uint64_t | descrLength:6 |
| uint64_t | tsColor:1 |
| uint64_t | ntDynDescr:1 |
| uint64_t | timestamp |
| uint64_t | offset2:10 |
| uint64_t | color:38 |
Field Documentation
| uint64_t NtDyn2Descr_s::capLength |
The length of the packet incl. descriptor.
Definition at line 58 of file pktdescr_dyn2.h.
| uint64_t NtDyn2Descr_s::offset0 |
Programmable offset into the packet. Default is outer L3.
Definition at line 59 of file pktdescr_dyn2.h.
| uint64_t NtDyn2Descr_s::offset1 |
Programmable offset into the packet. Default is outer L4.
Definition at line 60 of file pktdescr_dyn2.h.
| uint64_t NtDyn2Descr_s::ipProtocol |
Select-able IP protocol. Default is outer IP Protocol field.
Definition at line 61 of file pktdescr_dyn2.h.
| uint64_t NtDyn2Descr_s::rxPort |
The port that received the frame.
Definition at line 62 of file pktdescr_dyn2.h.
| uint64_t NtDyn2Descr_s::descrFormat |
The descriptor type.
Definition at line 63 of file pktdescr_dyn2.h.
| uint64_t NtDyn2Descr_s::descrLength |
The length of the descriptor in bytes.
- Examples:
- net/capfileconvert/capfileconvert_example.c.
Definition at line 64 of file pktdescr_dyn2.h.
Referenced by _Convert().
| uint64_t NtDyn2Descr_s::tsColor |
Timestamp color. Reserved for future use.
Definition at line 65 of file pktdescr_dyn2.h.
| uint64_t NtDyn2Descr_s::ntDynDescr |
Set to 1 to identify this descriptor as a dynamic descriptor.
Definition at line 66 of file pktdescr_dyn2.h.
| uint64_t NtDyn2Descr_s::timestamp |
The time of arrival of the packet.
- Examples:
- net/capfileconvert/capfileconvert_example.c.
Definition at line 67 of file pktdescr_dyn2.h.
Referenced by _Convert().
| uint64_t NtDyn2Descr_s::offset2 |
Programmable offset into the packet. Default is outer L4 payload.
Definition at line 68 of file pktdescr_dyn2.h.
| uint64_t NtDyn2Descr_s::color |
32 bit hash and 6 bit traditional color.
Definition at line 69 of file pktdescr_dyn2.h.
Typedef Documentation
| typedef struct NtDyn2Descr_s NtDyn2Descr_t |
NT Variable descriptor 2.