diff options
author | Neels Hofmeyr <nhofmeyr@sysmocom.de> | 2017-03-15 00:07:43 +0100 |
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committer | Neels Hofmeyr <nhofmeyr@sysmocom.de> | 2017-03-16 05:51:11 +0100 |
commit | cab2fcd5b5a7276fc9a89e449e9d3ede11790711 (patch) | |
tree | 3ac8a5510a7db3bfcc13501ac2ad9d44b467fd1f /src/hlr.c | |
parent | ee392bb3b1fdfd45e8b4401622e0ee6cc66f9695 (diff) |
UMTS AKA: implement SQN increment according to SEQ and IND
Add ind_bitlen column to auc_3g to record each USIM's IND size according to
3GPP TS 33.102 -- default is 5 bits, as suggested by the spec.
Introduce auc_3g_ind to each connecting GSUP client to use as IND index for
generating auth tuples sent to this client.
With osmo_gsup_server_add_conn(), implement a scheme where clients receive
fixed auc_3g_ind indexes based on the order in which they connect; each new
connection takes the lowest unused auc_3g_ind, so in case one of the clients
restarts, it will most likely receive the same auc_3g_ind, and if one client
disconnects, no other clients' auc_3g_ind are affected.
Add gsup_server_test.c to test the auc_3g_ind index distribution scheme.
Depends: libosmocore I4eac5be0c0b2cede04464c4c3a0873102d952453 for llist_first
Related: OS#1969
Change-Id: If4501ed4ff8e923fa6fe8b80c44c5ad647a8ed60
Diffstat (limited to 'src/hlr.c')
-rw-r--r-- | src/hlr.c | 3 |
1 files changed, 2 insertions, 1 deletions
@@ -63,7 +63,8 @@ static int rx_send_auth_info(struct osmo_gsup_conn *conn, memset(&gsup_out, 0, sizeof(gsup_out)); memcpy(&gsup_out.imsi, &gsup->imsi, sizeof(gsup_out.imsi)); - rc = db_get_auc(dbc, gsup->imsi, gsup_out.auth_vectors, + rc = db_get_auc(dbc, gsup->imsi, conn->auc_3g_ind, + gsup_out.auth_vectors, ARRAY_SIZE(gsup_out.auth_vectors), gsup->rand, gsup->auts); if (rc < 0) { |