AIB Mask
The following shows the field length of the AIB Mask provided by IBM mainframe’s IMS/DC. It includes the field lengths and support status in the OSI product.
| Descriptor | Length (Byte) | Support |
|---|---|---|
AIB identifier |
8 |
Supported |
DFSAIB allocated length |
2 |
Not Supported |
Subfunction code |
8 |
Supported |
Resource name 1 |
8 |
Supported |
Resource name 2 |
8 |
Not Supported |
Reserved |
8 |
Supported |
Maximum output area length |
4 |
Supported |
Output area length used |
4 |
Supported |
Resource field |
4 |
Not Supported |
Optional area length |
4 |
Not Supported |
Reserved |
4 |
Not Supported |
Return code |
4 |
Supported |
Reason code |
4 |
Supported |
Error code extension |
4 |
Not Supported |
Resource address 1 |
4 |
Support |
Resource address 2 |
4 |
Not Supported |
Resource address 3 |
4 |
Not Supported |
User defined token |
16 |
Not Supported |
Return token |
8 |
Not Supported |
Reserved |
16 |
Not Supported |