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Bug #3254
closedOsmoBTS doesn't reject RSL CHAN ACT for unsupported ciphers
Start date:
05/09/2018
Due date:
% Done:
100%
Spec Reference:
Description
When using an unsupported cipher, the RSL CHAN ACT should result in a RSL CHAN ACT NACK due to the unsupported cipher.
However, OsmoBTS instead simply acknowledges the channel activation and activates the channel with A5/0. This is actually the underlying cause of #3253
Related issues
Updated by laforge about 6 years ago
- Related to Bug #3253: osmo-bts-trx doesn't enable A5/3 added
Updated by laforge about 6 years ago
- % Done changed from 0 to 30
The problem is encr_info2lchan()
which uses bts_supports_cipher()
to determine if the cipher is suppored. However, if bts_supports_cipher()
returns 0 (not supported), it uses this value as return value of encr_info2lchan()
where '0' means success (standard osmocom convention). This results in channel activation proceeding, which it shouldn't.
Updated by laforge about 6 years ago
- Status changed from New to In Progress
- % Done changed from 30 to 80
Updated by laforge about 6 years ago
- Status changed from In Progress to Resolved
- % Done changed from 80 to 100
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