gprs: Add counters related to LLC layer patching
This commit adds the following counters:
- attach-reqs: Number of Attach Request messages
- attach-rejs: Number of Attach Reject messages
- tlli-cache: Size of the TLLI cache
Sponsored-by: On-Waves ehf
diff --git a/openbsc/src/gprs/gb_proxy.c b/openbsc/src/gprs/gb_proxy.c
index 89ed84e..88f727e 100644
--- a/openbsc/src/gprs/gb_proxy.c
+++ b/openbsc/src/gprs/gb_proxy.c
@@ -109,6 +109,9 @@
GBPROX_PEER_CTR_APN_PATCHED,
GBPROX_PEER_CTR_PATCH_CRYPT_ERR,
GBPROX_PEER_CTR_PATCH_ERR,
+ GBPROX_PEER_CTR_ATTACH_REQS,
+ GBPROX_PEER_CTR_ATTACH_REJS,
+ GBPROX_PEER_CTR_TLLI_CACHE_SIZE,
};
static const struct rate_ctr_desc peer_ctr_description[] = {
@@ -122,6 +125,9 @@
{ "apn-mod.sgsn", "APN patched " },
{ "mod-crypt-err", "Patch error: encrypted " },
{ "mod-err", "Patch error: other " },
+ { "attach-reqs", "Attach Request count " },
+ { "attach-rejs", "Attach Reject count " },
+ { "tlli-cache", "TLLI cache size " },
};
static const struct rate_ctr_group_desc peer_ctrg_desc = {
@@ -639,6 +645,10 @@
OSMO_ASSERT(tlli_info->mi_data != NULL);
memcpy(tlli_info->mi_data, imsi, imsi_len);
}
+
+ /* TODO: Hack??? */
+ peer->ctrg->ctr[GBPROX_PEER_CTR_TLLI_CACHE_SIZE].current =
+ state->enabled_tllis_count;
}
static void gbprox_unregister_tlli(struct gbprox_peer *peer, uint32_t tlli)
@@ -1023,6 +1033,7 @@
switch (g48h->msg_type) {
case GSM48_MT_GMM_ATTACH_REQ:
+ rate_ctr_inc(&peer->ctrg->ctr[GBPROX_PEER_CTR_ATTACH_REQS]);
return gbprox_patch_gmm_attach_req(msg, data, data_len,
peer, to_bss, len_change);
@@ -1032,6 +1043,10 @@
return gbprox_patch_gmm_attach_ack(msg, data, data_len,
peer, to_bss, len_change);
+ case GSM48_MT_GMM_ATTACH_REJ:
+ rate_ctr_inc(&peer->ctrg->ctr[GBPROX_PEER_CTR_ATTACH_REJS]);
+ break;
+
case GSM48_MT_GMM_RA_UPD_REQ:
if (!patching_is_enabled(GBPROX_PATCH_LLC_GMM))
break;
diff --git a/openbsc/tests/gbproxy/gbproxy_test.ok b/openbsc/tests/gbproxy/gbproxy_test.ok
index fb8991c..58f4951 100644
--- a/openbsc/tests/gbproxy/gbproxy_test.ok
+++ b/openbsc/tests/gbproxy/gbproxy_test.ok
@@ -1678,6 +1678,8 @@
RAID patched (BSS ): 9
RAID patched (SGSN): 3
APN patched : 2
+ Attach Request count : 1
+ TLLI cache size : 2
--- Bad cases ---
TLLI is already detached, shouldn't patch
@@ -1714,5 +1716,7 @@
RAID patched (BSS ): 10
RAID patched (SGSN): 3
APN patched : 2
+ Attach Request count : 1
+ TLLI cache size : 2
===== GbProxy test END