use RUA procedure code for rua_to_scu() arg
Instead of osmo_scu_prim_type, use RUA_ProcedureCode to tell rua_to_scu() the RUA message type being handled. Cosmetically prepare for upcoming patch that completely moves osmo_scu_prim composition from rua_to_scu() to a new context map SCCP FSM. Related: I6ff7e36532ff57c6f2d3e7e419dd22ef27dafd19 Change-Id: I28735945844f732e7bd7f09db1f453c608415b84
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@ -174,13 +174,27 @@ int rua_tx_disc(struct hnb_context *hnb, int is_ps, uint32_t context_id,
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return hnbgw_rua_tx(hnb, msg);
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}
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static struct value_string rua_procedure_code_names[] = {
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{ RUA_ProcedureCode_id_Connect, "Connect" },
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{ RUA_ProcedureCode_id_DirectTransfer, "DirectTransfer" },
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{ RUA_ProcedureCode_id_Disconnect, "Disconnect" },
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{ RUA_ProcedureCode_id_ConnectionlessTransfer, "ConnectionlessTransfer" },
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{ RUA_ProcedureCode_id_ErrorIndication, "ErrorIndication" },
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{ RUA_ProcedureCode_id_privateMessage, "PrivateMessage" },
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{}
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};
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static inline const char *rua_procedure_code_name(enum RUA_ProcedureCode val)
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{
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return get_value_string(rua_procedure_code_names, val);
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}
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/* dispatch a RUA connection-oriented message received from a HNB to a context mapping's RUA FSM, so that it is
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* forwarded to the CN via SCCP connection-oriented messages.
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* Connectionless messages are handled in hnbgw_ranap_rx() instead, not here. */
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static int rua_to_scu(struct hnb_context *hnb,
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RUA_CN_DomainIndicator_t cN_DomainIndicator,
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enum osmo_scu_prim_type type,
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enum RUA_ProcedureCode rua_procedure,
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uint32_t context_id, uint32_t cause,
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const uint8_t *data, unsigned int len)
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{
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@ -216,20 +230,18 @@ static int rua_to_scu(struct hnb_context *hnb,
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msg = msgb_alloc(1500, "rua_to_sccp");
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prim = (struct osmo_scu_prim *) msgb_put(msg, sizeof(*prim));
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osmo_prim_init(&prim->oph, SCCP_SAP_USER, type, PRIM_OP_REQUEST, msg);
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/* Only connection-oriented messages are handled by this function */
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OSMO_ASSERT(type != OSMO_SCU_PRIM_N_UNITDATA);
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map = context_map_alloc_by_hnb(hnb, context_id, is_ps, cn);
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OSMO_ASSERT(map);
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LOGHNB(hnb, DRUA, LOGL_DEBUG, "rua_to_scu() %s to %s, rua_ctx_id %u scu_conn_id %u\n",
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cn_domain_indicator_to_str(cN_DomainIndicator), osmo_sccp_addr_dump(remote_addr),
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map->rua_ctx_id, map->scu_conn_id);
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LOG_MAP(map, DRUA, LOGL_DEBUG, "rx RUA %s with %u bytes RANAP data\n",
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rua_procedure_code_name(rua_procedure), data ? len : 0);
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/* add primitive header */
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switch (type) {
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case OSMO_SCU_PRIM_N_CONNECT:
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switch (rua_procedure) {
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case RUA_ProcedureCode_id_Connect:
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osmo_prim_init(&prim->oph, SCCP_SAP_USER, OSMO_SCU_PRIM_N_CONNECT, PRIM_OP_REQUEST, msg);
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prim->u.connect.called_addr = *remote_addr;
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prim->u.connect.calling_addr = cn->gw->sccp.local_addr;
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prim->u.connect.sccp_class = 2;
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@ -240,18 +252,24 @@ static int rua_to_scu(struct hnb_context *hnb,
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LOGHNB(hnb, DRUA, LOGL_DEBUG, "RUA to SCCP N_CONNECT: calling_addr:%s\n",
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osmo_sccp_addr_dump(&prim->u.connect.calling_addr));
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break;
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case OSMO_SCU_PRIM_N_DATA:
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case RUA_ProcedureCode_id_DirectTransfer:
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osmo_prim_init(&prim->oph, SCCP_SAP_USER, OSMO_SCU_PRIM_N_DATA, PRIM_OP_REQUEST, msg);
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prim->u.data.conn_id = map->scu_conn_id;
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break;
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case OSMO_SCU_PRIM_N_DISCONNECT:
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case RUA_ProcedureCode_id_Disconnect:
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osmo_prim_init(&prim->oph, SCCP_SAP_USER, OSMO_SCU_PRIM_N_DISCONNECT, PRIM_OP_REQUEST, msg);
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prim->u.disconnect.conn_id = map->scu_conn_id;
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prim->u.disconnect.cause = cause;
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release_context_map = true;
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/* Mark SCCP conn as gracefully disconnected */
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map->scu_conn_active = false;
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break;
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default:
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return -EINVAL;
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/* No caller may ever pass a different RUA procedure code */
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OSMO_ASSERT(false);
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}
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/* If there is RANAP data, include it in the msgb. Usually there is data, but this could also be an SCCP CR
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@ -385,7 +403,7 @@ static int rua_rx_init_connect(struct msgb *msg, ANY_t *in)
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cn_domain_indicator_to_str(ies.cN_DomainIndicator), context_id,
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ies.establishment_Cause == RUA_Establishment_Cause_emergency_call ? "emergency" : "normal");
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rc = rua_to_scu(hnb, ies.cN_DomainIndicator, OSMO_SCU_PRIM_N_CONNECT,
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rc = rua_to_scu(hnb, ies.cN_DomainIndicator, RUA_ProcedureCode_id_Connect,
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context_id, 0, ies.ranaP_Message.buf,
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ies.ranaP_Message.size);
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@ -420,7 +438,7 @@ static int rua_rx_init_disconnect(struct msgb *msg, ANY_t *in)
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}
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rc = rua_to_scu(hnb, ies.cN_DomainIndicator,
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OSMO_SCU_PRIM_N_DISCONNECT,
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RUA_ProcedureCode_id_Disconnect,
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context_id, scu_cause, ranap_data, ranap_len);
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rua_free_disconnecties(&ies);
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@ -445,7 +463,7 @@ static int rua_rx_init_dt(struct msgb *msg, ANY_t *in)
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rc = rua_to_scu(hnb,
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ies.cN_DomainIndicator,
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OSMO_SCU_PRIM_N_DATA,
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RUA_ProcedureCode_id_DirectTransfer,
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context_id, 0, ies.ranaP_Message.buf,
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ies.ranaP_Message.size);
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