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GERAN: allow GSM SRES on UMTS AKA challenge 

Store the established security context type (GSM or UMTS) instead of the
boolean flag is_authenticated. Provide the previous boolean query with thin
sgsn_mm_ctx_is_authenticated() function.

Knowing which security context was established will be necessary for OS#3224,
i.e. using the proper ciphering key, which is not yet tested properly, and
probably not correct at this stage.

This change will make new SGSN_Tests.TC_attach_umts_aka_gsm_sres pass.

Related: OS#3193 OS#3224
Change-Id: I36807bad3bc55c0030d4f09cb2c369714f24bec7
This commit is contained in:
Neels Hofmeyr 2018-04-22 19:29:41 +02:00
parent f8bd2f69f5
commit 4a8d501137
1 changed files with 1 additions and 1 deletions
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2
tests/sgsn/sgsn_test.c
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@ -1132,7 +1132,7 @@ int my_subscr_request_auth_info_fake_auth(struct sgsn_mm_ctx *mmctx, const uint8
{
/* Fake an authentication */
OSMO_ASSERT(mmctx->subscr);
mmctx->is_authenticated = 1;
mmctx->sec_ctx = OSMO_AUTH_TYPE_GSM;
gprs_subscr_update_auth_info(mmctx->subscr);
return 0;