diff options
Diffstat (limited to 'src/libiu/iu.c')
-rw-r--r-- | src/libiu/iu.c | 53 |
1 files changed, 48 insertions, 5 deletions
diff --git a/src/libiu/iu.c b/src/libiu/iu.c index 932b21718..5d56a4a37 100644 --- a/src/libiu/iu.c +++ b/src/libiu/iu.c @@ -80,7 +80,15 @@ struct iu_rnc { void *talloc_iu_ctx; -int asn1_xer_print = 1; +/* Implement the extern asn_debug from libasn1c to indicate whether to print + * asn.1 debug messages (see libasn1c). */ +int asn_debug = 0; + +/* Implement the extern asn1_xer_print to indicate whether the ASN.1 binary + * code decoded and encoded during Iu communication should be logged to stderr + * (see asn.1 generated code in osmo-iuh). */ +int asn1_xer_print = 0; + void *talloc_asn1_ctx; iu_recv_cb_t global_iu_recv_cb = NULL; @@ -241,6 +249,25 @@ int iu_tx_sec_mode_cmd(struct ue_conn_ctx *uectx, struct gsm_auth_tuple *tp, return 0; } +int iu_tx_common_id(struct ue_conn_ctx *uectx, const char *imsi) +{ + struct msgb *msg; + struct osmo_scu_prim *prim; + + LOGP(DRANAP, LOGL_INFO, "Transmitting RANAP CommonID (SUA link %p conn_id %u)\n", + uectx->link, uectx->conn_id); + + msg = ranap_new_msg_common_id(imsi); + msg->l2h = msg->data; + prim = (struct osmo_scu_prim *) msgb_push(msg, sizeof(*prim)); + prim->u.data.conn_id = uectx->conn_id; + osmo_prim_init(&prim->oph, SCCP_SAP_USER, + OSMO_SCU_PRIM_N_DATA, + PRIM_OP_REQUEST, msg); + osmo_sua_user_link_down(uectx->link, &prim->oph); + return 0; +} + static int iu_grnc_id_parse(struct iu_grnc_id *dst, struct RANAP_GlobalRNC_ID *src) { @@ -375,20 +402,35 @@ int iu_tx(struct msgb *msg_nas, uint8_t sapi) return 0; } -static int ranap_handle_co_iu_rel_req(struct ue_conn_ctx *ctx, RANAP_Iu_ReleaseRequestIEs_t *ies) +/* Send Iu Release for the given UE connection. + * If cause is NULL, the standard "No remaining RAB" cause is sent, otherwise + * the provided cause. */ +int iu_tx_release(struct ue_conn_ctx *ctx, const struct RANAP_Cause *cause) { struct msgb *msg; struct osmo_scu_prim *prim; + static const struct RANAP_Cause default_cause = { + .present = RANAP_Cause_PR_radioNetwork, + .choice.radioNetwork = RANAP_CauseRadioNetwork_no_remaining_rab, + }; - LOGP(DRANAP, LOGL_INFO, "Received Iu Release Request, Sending Release Command\n"); - msg = ranap_new_msg_iu_rel_cmd(&ies->cause); + if (!cause) + cause = &default_cause; + + msg = ranap_new_msg_iu_rel_cmd(cause); msg->l2h = msg->data; prim = (struct osmo_scu_prim *) msgb_push(msg, sizeof(*prim)); prim->u.data.conn_id = ctx->conn_id; osmo_prim_init(&prim->oph, SCCP_SAP_USER, OSMO_SCU_PRIM_N_DATA, PRIM_OP_REQUEST, msg); - osmo_sua_user_link_down(ctx->link, &prim->oph); + return osmo_sua_user_link_down(ctx->link, &prim->oph); +} + +static int ranap_handle_co_iu_rel_req(struct ue_conn_ctx *ctx, RANAP_Iu_ReleaseRequestIEs_t *ies) +{ + LOGP(DRANAP, LOGL_INFO, "Received Iu Release Request, Sending Release Command\n"); + iu_tx_release(ctx, &ies->cause); return 0; } @@ -413,6 +455,7 @@ static int ranap_handle_co_rab_ass_resp(struct ue_conn_ctx *ctx, RANAP_RAB_Assig ranap_free_rab_setupormodifieditemies(&setup_ies); } + /* FIXME: handle RAB Ass failure? */ return rc; } |