diff options
| author | Neels Hofmeyr <neels@hofmeyr.de> | 2019-07-31 15:21:19 +0200 |
|---|---|---|
| committer | Neels Hofmeyr <neels@hofmeyr.de> | 2019-08-05 23:24:47 +0200 |
| commit | a4d7a7681696723ce8128bc0f039a354d1f001ab (patch) | |
| tree | a4a2f8da9da28ab6b272d8e398e0cba1fbfc9950 /doc | |
| parent | 75bdbbf45d549183eb4c87a84d5600aca178ca03 (diff) | |
do not force encryption on UTRAN
Remove the conditions that always enable encryption on UTRAN.
We so far lack an explicit configuration for UTRAN encryption, and this patch
does not add any either. Instead, whether UTRAN encryption is enabled is simply
triggered on whether GERAN has A5 encryption enabled (A5/n with n > 0). Though
GERAN and UTRAN encryption are not technically related at all, this makes UTRAN
behave like GERAN for now, until we implement a proper separate configuration
for UTRAN encryption.
Adjust the msc_vlr_test_* configuration by setting the net->a5_encryption_mask
such that the expected output remains unchanged. A subsequent patch
(I54227f1f08c38c0bf69b9c48924669c4829b04b9) will add more tests, particularly
cases of UTRAN without encryption.
Adjust manual and vty doc.
Related: OS#2783
Change-Id: I04ecd7a3b1cc603b2e3feb630e8c7c93fc36ccd7
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/manuals/chapters/net.adoc | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/doc/manuals/chapters/net.adoc b/doc/manuals/chapters/net.adoc index 431455d15..4bf34a33f 100644 --- a/doc/manuals/chapters/net.adoc +++ b/doc/manuals/chapters/net.adoc @@ -189,6 +189,10 @@ network While authentication is always required on 3G, ciphering is optional. So far OsmoMSC lacks explicit configuration for ciphering on 3G. As an interim -solution, ciphering is always enabled on 3G. +solution, ciphering is enabled on 3G exactly when ciphering is enabled on 2G, +i.e. when any cipher other than A5/0 is enabled in the configuration. If only +A5/0 is configured, ciphering will be disabled on both 2G and 3G. The future +aim is to add comprehensive configuration for 3G ciphering that is independent +from the 2G setting. OsmoMSC indicates UEA1 and UEA2 as permitted encryption algorithms on 3G. |