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daniel gerrit-no-reply at lists.osmocom.orgdaniel has uploaded this change for review. ( https://gerrit.osmocom.org/c/osmo-sgsn/+/22252 ) Change subject: gbproxy: Use IMSI cache to handle PAGING_PS_REJECT ...................................................................... gbproxy: Use IMSI cache to handle PAGING_PS_REJECT Change-Id: I7d91d9ecfba757dc81edcf05efb7a2158348099d Related: OS#4472, OS#4951 --- M src/gbproxy/gb_proxy.c 1 file changed, 23 insertions(+), 0 deletions(-) git pull ssh://gerrit.osmocom.org:29418/osmo-sgsn refs/changes/52/22252/1 diff --git a/src/gbproxy/gb_proxy.c b/src/gbproxy/gb_proxy.c index 9db009c..6f8d0e0 100644 --- a/src/gbproxy/gb_proxy.c +++ b/src/gbproxy/gb_proxy.c @@ -934,6 +934,20 @@ goto err_no_bvc; gbprox_bss2sgsn_tlli(from_bvc->cell, msg, &tlli, true); break; + case BSSGP_PDUT_PAGING_PS_REJECT: + { + /* Route according to IMSI<->NSE cache entry */ + struct osmo_mobile_identity mi; + const uint8_t *mi_data = TLVP_VAL(&tp, BSSGP_IE_IMSI); + uint8_t mi_len = TLVP_LEN(&tp, BSSGP_IE_IMSI); + osmo_mobile_identity_decode(&mi, mi_data, mi_len, false); + nse = gbproxy_nse_by_imsi(nse->cfg, mi.imsi); + if (!nse) { + return bssgp_tx_status(BSSGP_CAUSE_INV_MAND_INF, NULL, msg); + } + rc = gbprox_relay2nse(msg, nse, 0); + break; + } default: LOGPNSE(nse, LOGL_ERROR, "Rx %s: Implementation missing\n", pdut_name); break; @@ -1135,6 +1149,15 @@ rc = gbprox_relay2peer(msg, sgsn_bvc->cell->bss_bvc, ns_bvci); break; case BSSGP_PDUT_PAGING_PS: + { + /* Cache the IMSI<->NSE to route PAGING REJECT */ + struct osmo_mobile_identity mi; + const uint8_t *mi_data = TLVP_VAL(&tp, BSSGP_IE_IMSI); + uint8_t mi_len = TLVP_LEN(&tp, BSSGP_IE_IMSI); + osmo_mobile_identity_decode(&mi, mi_data, mi_len, false); + gbproxy_imsi_cache_update(nse, mi.imsi); + /* fall through */ + } case BSSGP_PDUT_PAGING_CS: /* process the paging request (LAI/RAI lookup) */ rc = gbprox_rx_paging(nse, msg, pdut_name, &tp, ns_bvci); -- To view, visit https://gerrit.osmocom.org/c/osmo-sgsn/+/22252 To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings Gerrit-Project: osmo-sgsn Gerrit-Branch: master Gerrit-Change-Id: I7d91d9ecfba757dc81edcf05efb7a2158348099d Gerrit-Change-Number: 22252 Gerrit-PatchSet: 1 Gerrit-Owner: daniel <dwillmann at sysmocom.de> Gerrit-MessageType: newchange -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.osmocom.org/pipermail/gerrit-log/attachments/20210117/2a63106f/attachment.htm>