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Diffstat (limited to 'openbsc/src/libmsc/gsm_04_11.c')
-rw-r--r--openbsc/src/libmsc/gsm_04_11.c183
1 files changed, 98 insertions, 85 deletions
diff --git a/openbsc/src/libmsc/gsm_04_11.c b/openbsc/src/libmsc/gsm_04_11.c
index 41639b3a2..b9f2ff605 100644
--- a/openbsc/src/libmsc/gsm_04_11.c
+++ b/openbsc/src/libmsc/gsm_04_11.c
@@ -38,7 +38,6 @@
#include <osmocom/core/msgb.h>
#include <osmocom/core/talloc.h>
-#include <osmocom/gsm/tlv.h>
#include <osmocom/gsm/gsm_utils.h>
#include <osmocom/gsm/gsm0411_utils.h>
@@ -46,7 +45,6 @@
#include <openbsc/gsm_data.h>
#include <openbsc/db.h>
#include <openbsc/gsm_subscriber.h>
-#include <openbsc/gsm_04_11.h>
#include <openbsc/gsm_04_08.h>
#include <openbsc/abis_rsl.h>
#include <openbsc/signal.h>
@@ -65,35 +63,6 @@ extern int smpp_try_deliver(struct gsm_sms *sms);
void *tall_gsms_ctx;
static uint32_t new_callref = 0x40000001;
-static const struct value_string rp_cause_strs[] = {
- { GSM411_RP_CAUSE_MO_NUM_UNASSIGNED, "(MO) Number not assigned" },
- { GSM411_RP_CAUSE_MO_OP_DET_BARR, "(MO) Operator determined barring" },
- { GSM411_RP_CAUSE_MO_CALL_BARRED, "(MO) Call barred" },
- { GSM411_RP_CAUSE_MO_SMS_REJECTED, "(MO) SMS rejected" },
- { GSM411_RP_CAUSE_MO_DEST_OUT_OF_ORDER, "(MO) Destination out of order" },
- { GSM411_RP_CAUSE_MO_UNIDENTIFIED_SUBSCR, "(MO) Unidentified subscriber" },
- { GSM411_RP_CAUSE_MO_FACILITY_REJ, "(MO) Facility reject" },
- { GSM411_RP_CAUSE_MO_UNKNOWN_SUBSCR, "(MO) Unknown subscriber" },
- { GSM411_RP_CAUSE_MO_NET_OUT_OF_ORDER, "(MO) Network out of order" },
- { GSM411_RP_CAUSE_MO_TEMP_FAIL, "(MO) Temporary failure" },
- { GSM411_RP_CAUSE_MO_CONGESTION, "(MO) Congestion" },
- { GSM411_RP_CAUSE_MO_RES_UNAVAIL, "(MO) Resource unavailable" },
- { GSM411_RP_CAUSE_MO_REQ_FAC_NOTSUBSCR, "(MO) Requested facility not subscribed" },
- { GSM411_RP_CAUSE_MO_REQ_FAC_NOTIMPL, "(MO) Requested facility not implemented" },
- { GSM411_RP_CAUSE_MO_INTERWORKING, "(MO) Interworking" },
- /* valid only for MT */
- { GSM411_RP_CAUSE_MT_MEM_EXCEEDED, "(MT) Memory Exceeded" },
- /* valid for both directions */
- { GSM411_RP_CAUSE_INV_TRANS_REF, "Invalid Transaction Reference" },
- { GSM411_RP_CAUSE_SEMANT_INC_MSG, "Semantically Incorrect Message" },
- { GSM411_RP_CAUSE_INV_MAND_INF, "Invalid Mandatory Information" },
- { GSM411_RP_CAUSE_MSGTYPE_NOTEXIST, "Message Type non-existant" },
- { GSM411_RP_CAUSE_MSG_INCOMP_STATE, "Message incompatible with protocol state" },
- { GSM411_RP_CAUSE_IE_NOTEXIST, "Information Element not existing" },
- { GSM411_RP_CAUSE_PROTOCOL_ERR, "Protocol Error" },
- { 0, NULL }
-};
-
struct gsm_sms *sms_alloc(void)
{
@@ -194,10 +163,12 @@ static int gsm411_mm_send(struct gsm411_smc_inst *inst, int msg_type,
rc = gsm411_cp_sendmsg(msg, trans, cp_msg_type);
break;
case GSM411_MMSMS_REL_REQ:
+ DEBUGP(DLSMS, "Got MMSMS_REL_REQ, destroying transaction.\n");
msgb_free(msg);
trans_free(trans);
break;
default:
+ LOGP(DLSMS, LOGL_NOTICE, "Unhandled MMCCSMS msg 0x%x\n", msg_type);
msgb_free(msg);
rc = -EINVAL;
}
@@ -205,21 +176,15 @@ static int gsm411_mm_send(struct gsm411_smc_inst *inst, int msg_type,
return rc;
}
-/* Prefix msg with a RP-DATA header and send as CP-DATA */
-static int gsm411_rp_sendmsg(struct gsm411_smc_inst *inst, struct msgb *msg,
- uint8_t rp_msg_type, uint8_t rp_msg_ref,
- int mnsms_msg_type)
+/* mm_send: receive MNCCSMS sap message from SMR */
+int gsm411_mn_send(struct gsm411_smr_inst *inst, int msg_type,
+ struct msgb *msg)
{
- struct gsm411_rp_hdr *rp;
- uint8_t len = msg->len;
-
- /* GSM 04.11 RP-DATA header */
- rp = (struct gsm411_rp_hdr *)msgb_push(msg, sizeof(*rp));
- rp->len = len + 2;
- rp->msg_type = rp_msg_type;
- rp->msg_ref = rp_msg_ref; /* FIXME: Choose randomly */
+ struct gsm_trans *trans =
+ container_of(inst, struct gsm_trans, sms.smr_inst);
- return gsm411_smc_send(inst, mnsms_msg_type, msg);
+ /* forward to SMC */
+ return gsm411_smc_send(&trans->sms.smc_inst, msg_type, msg);
}
static int gsm340_rx_sms_submit(struct msgb *msg, struct gsm_sms *gsms)
@@ -469,14 +434,31 @@ out:
return rc;
}
+/* Prefix msg with a RP-DATA header and send as SMR DATA */
+static int gsm411_rp_sendmsg(struct gsm411_smr_inst *inst, struct msgb *msg,
+ uint8_t rp_msg_type, uint8_t rp_msg_ref,
+ int rl_msg_type)
+{
+ struct gsm411_rp_hdr *rp;
+ uint8_t len = msg->len;
+
+ /* GSM 04.11 RP-DATA header */
+ rp = (struct gsm411_rp_hdr *)msgb_push(msg, sizeof(*rp));
+ rp->len = len + 2;
+ rp->msg_type = rp_msg_type;
+ rp->msg_ref = rp_msg_ref; /* FIXME: Choose randomly */
+
+ return gsm411_smr_send(inst, rl_msg_type, msg);
+}
+
static int gsm411_send_rp_ack(struct gsm_trans *trans, uint8_t msg_ref)
{
struct msgb *msg = gsm411_msgb_alloc();
DEBUGP(DLSMS, "TX: SMS RP ACK\n");
- return gsm411_rp_sendmsg(&trans->sms.smc_inst, msg, GSM411_MT_RP_ACK_MT,
- msg_ref, GSM411_MNSMS_DATA_REQ);
+ return gsm411_rp_sendmsg(&trans->sms.smr_inst, msg, GSM411_MT_RP_ACK_MT,
+ msg_ref, GSM411_SM_RL_REPORT_REQ);
}
static int gsm411_send_rp_error(struct gsm_trans *trans,
@@ -487,10 +469,10 @@ static int gsm411_send_rp_error(struct gsm_trans *trans,
msgb_tv_put(msg, 1, cause);
LOGP(DLSMS, LOGL_NOTICE, "TX: SMS RP ERROR, cause %d (%s)\n", cause,
- get_value_string(rp_cause_strs, cause));
+ get_value_string(gsm411_rp_cause_strs, cause));
- return gsm411_rp_sendmsg(&trans->sms.smc_inst, msg,
- GSM411_MT_RP_ERROR_MT, msg_ref, GSM411_MNSMS_DATA_REQ);
+ return gsm411_rp_sendmsg(&trans->sms.smr_inst, msg,
+ GSM411_MT_RP_ERROR_MT, msg_ref, GSM411_SM_RL_REPORT_REQ);
}
/* Receive a 04.11 TPDU inside RP-DATA / user data */
@@ -561,12 +543,6 @@ static int gsm411_rx_rp_ack(struct msgb *msg, struct gsm_trans *trans,
* successfully received a SMS. We can now safely mark it as
* transmitted */
- if (!trans->sms.is_mt) {
- LOGP(DLSMS, LOGL_ERROR, "RX RP-ACK on a MO transfer ?\n");
- return gsm411_send_rp_error(trans, rph->msg_ref,
- GSM411_RP_CAUSE_MSG_INCOMP_STATE);
- }
-
if (!sms) {
LOGP(DLSMS, LOGL_ERROR, "RX RP-ACK but no sms in transaction?!?\n");
return gsm411_send_rp_error(trans, rph->msg_ref,
@@ -586,8 +562,6 @@ static int gsm411_rx_rp_ack(struct msgb *msg, struct gsm_trans *trans,
if (sms)
gsm411_send_sms(trans->conn, sms);
- /* free the transaction here */
- trans_free(trans);
return 0;
}
@@ -605,15 +579,7 @@ static int gsm411_rx_rp_error(struct msgb *msg, struct gsm_trans *trans,
LOGP(DLSMS, LOGL_NOTICE, "%s: RX SMS RP-ERROR, cause %d:%d (%s)\n",
subscr_name(trans->conn->subscr), cause_len, cause,
- get_value_string(rp_cause_strs, cause));
-
- if (!trans->sms.is_mt) {
- LOGP(DLSMS, LOGL_ERROR, "RX RP-ERR on a MO transfer ?\n");
-#if 0
- return gsm411_send_rp_error(trans, rph->msg_ref,
- GSM411_RP_CAUSE_MSG_INCOMP_STATE);
-#endif
- }
+ get_value_string(gsm411_rp_cause_strs, cause));
if (!sms) {
LOGP(DLSMS, LOGL_ERROR,
@@ -649,7 +615,6 @@ static int gsm411_rx_rp_smma(struct msgb *msg, struct gsm_trans *trans,
int rc;
rc = gsm411_send_rp_ack(trans, rph->msg_ref);
- trans->sms.rp_state = GSM411_RPS_IDLE;
/* MS tells us that it has memory for more SMS, we need
* to check if we have any pending messages for it and then
@@ -664,8 +629,8 @@ static int gsm411_rx_rp_smma(struct msgb *msg, struct gsm_trans *trans,
return rc;
}
-/* receive CP DATA */
-static int gsm411_rx_cp_data(struct msgb *msg, struct gsm48_hdr *gh,
+/* receive RL DATA */
+static int gsm411_rx_rl_data(struct msgb *msg, struct gsm48_hdr *gh,
struct gsm_trans *trans)
{
struct gsm411_rp_hdr *rp_data = (struct gsm411_rp_hdr*)&gh->data;
@@ -675,33 +640,74 @@ static int gsm411_rx_cp_data(struct msgb *msg, struct gsm48_hdr *gh,
switch (msg_type) {
case GSM411_MT_RP_DATA_MO:
DEBUGP(DLSMS, "RX SMS RP-DATA (MO)\n");
- /* start TR2N and enter 'wait to send RP-ACK state' */
- trans->sms.rp_state = GSM411_RPS_WAIT_TO_TX_RP_ACK;
rc = gsm411_rx_rp_data(msg, trans, rp_data);
break;
- case GSM411_MT_RP_ACK_MO:
- DEBUGP(DLSMS,"RX SMS RP-ACK (MO)\n");
- rc = gsm411_rx_rp_ack(msg, trans, rp_data);
- break;
case GSM411_MT_RP_SMMA_MO:
DEBUGP(DLSMS, "RX SMS RP-SMMA\n");
- /* start TR2N and enter 'wait to send RP-ACK state' */
- trans->sms.rp_state = GSM411_RPS_WAIT_TO_TX_RP_ACK;
rc = gsm411_rx_rp_smma(msg, trans, rp_data);
break;
+ default:
+ LOGP(DLSMS, LOGL_NOTICE, "Invalid RP type 0x%02x\n", msg_type);
+ rc = -EINVAL;
+ break;
+ }
+
+ return rc;
+}
+
+/* receive RL REPORT */
+static int gsm411_rx_rl_report(struct msgb *msg, struct gsm48_hdr *gh,
+ struct gsm_trans *trans)
+{
+ struct gsm411_rp_hdr *rp_data = (struct gsm411_rp_hdr*)&gh->data;
+ uint8_t msg_type = rp_data->msg_type & 0x07;
+ int rc = 0;
+
+ switch (msg_type) {
+ case GSM411_MT_RP_ACK_MO:
+ DEBUGP(DLSMS, "RX SMS RP-ACK (MO)\n");
+ rc = gsm411_rx_rp_ack(msg, trans, rp_data);
+ break;
case GSM411_MT_RP_ERROR_MO:
+ DEBUGP(DLSMS, "RX SMS RP-ERROR (MO)\n");
rc = gsm411_rx_rp_error(msg, trans, rp_data);
break;
default:
LOGP(DLSMS, LOGL_NOTICE, "Invalid RP type 0x%02x\n", msg_type);
- rc = gsm411_send_rp_error(trans, rp_data->msg_ref,
- GSM411_RP_CAUSE_MSGTYPE_NOTEXIST);
+ rc = -EINVAL;
break;
}
return rc;
}
+/* receive SM-RL sap message from SMR
+ * NOTE: Message is freed by sender
+ */
+int gsm411_rl_recv(struct gsm411_smr_inst *inst, int msg_type,
+ struct msgb *msg)
+{
+ struct gsm_trans *trans =
+ container_of(inst, struct gsm_trans, sms.smr_inst);
+ struct gsm48_hdr *gh = msgb_l3(msg);
+ int rc = 0;
+
+ switch (msg_type) {
+ case GSM411_SM_RL_DATA_IND:
+ rc = gsm411_rx_rl_data(msg, gh, trans);
+ break;
+ case GSM411_SM_RL_REPORT_IND:
+ if (gh)
+ rc = gsm411_rx_rl_report(msg, gh, trans);
+ break;
+ default:
+ LOGP(DLSMS, LOGL_NOTICE, "Unhandled SM-RL message 0x%x\n", msg_type);
+ rc = -EINVAL;
+ }
+
+ return rc;
+}
+
/* receive MNCCSMS sap message from SMC
* NOTE: Message is freed by sender
*/
@@ -717,7 +723,7 @@ static int gsm411_mn_recv(struct gsm411_smc_inst *inst, int msg_type,
case GSM411_MNSMS_EST_IND:
case GSM411_MNSMS_DATA_IND:
DEBUGP(DLSMS, "MNSMS-DATA/EST-IND\n");
- rc = gsm411_rx_cp_data(msg, gh, trans);
+ rc = gsm411_smr_recv(&trans->sms.smr_inst, msg_type, msg);
break;
case GSM411_MNSMS_ERROR_IND:
if (gh)
@@ -727,8 +733,10 @@ static int gsm411_mn_recv(struct gsm411_smc_inst *inst, int msg_type,
gh->data[0]));
else
DEBUGP(DLSMS, "MNSMS-ERROR-IND, no cause\n");
+ rc = gsm411_smr_recv(&trans->sms.smr_inst, msg_type, msg);
break;
default:
+ LOGP(DLSMS, LOGL_NOTICE, "Unhandled MNCCSMS msg 0x%x\n", msg_type);
rc = -EINVAL;
}
@@ -764,7 +772,8 @@ int gsm0411_rcv_sms(struct gsm_subscriber_connection *conn,
}
gsm411_smc_init(&trans->sms.smc_inst, 0, 1,
gsm411_mn_recv, gsm411_mm_send);
- trans->sms.rp_state = GSM411_RPS_IDLE;
+ gsm411_smr_init(&trans->sms.smr_inst, 0, 1,
+ gsm411_rl_recv, gsm411_mn_send);
trans->sms.link_id = UM_SAPI_SMS;
trans->conn = conn;
@@ -839,7 +848,8 @@ int gsm411_send_sms(struct gsm_subscriber_connection *conn, struct gsm_sms *sms)
}
gsm411_smc_init(&trans->sms.smc_inst, sms->id, 1,
gsm411_mn_recv, gsm411_mm_send);
- trans->sms.rp_state = GSM411_RPS_IDLE;
+ gsm411_smr_init(&trans->sms.smr_inst, sms->id, 1,
+ gsm411_rl_recv, gsm411_mn_send);
trans->sms.sms = sms;
trans->sms.link_id = UM_SAPI_SMS; /* FIXME: main or SACCH ? */
@@ -881,9 +891,8 @@ int gsm411_send_sms(struct gsm_subscriber_connection *conn, struct gsm_sms *sms)
osmo_counter_inc(conn->bts->network->stats.sms.delivered);
db_sms_inc_deliver_attempts(trans->sms.sms);
- return gsm411_rp_sendmsg(&trans->sms.smc_inst, msg,
- GSM411_MT_RP_DATA_MT, msg_ref, GSM411_MNSMS_EST_REQ);
- /* FIXME: enter 'wait for RP-ACK' state, start TR1N */
+ return gsm411_rp_sendmsg(&trans->sms.smr_inst, msg,
+ GSM411_MT_RP_DATA_MT, msg_ref, GSM411_SM_RL_DATA_REQ);
}
/* paging callback. Here we get called if paging a subscriber has
@@ -942,6 +951,10 @@ int gsm411_send_sms_subscr(struct gsm_subscriber *subscr,
void _gsm411_sms_trans_free(struct gsm_trans *trans)
{
/* cleanup SMS instance */
+ gsm411_smr_clear(&trans->sms.smr_inst);
+ trans->sms.smr_inst.rl_recv = NULL;
+ trans->sms.smr_inst.mn_send = NULL;
+
gsm411_smc_clear(&trans->sms.smc_inst);
trans->sms.smc_inst.mn_recv = NULL;
trans->sms.smc_inst.mm_send = NULL;
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-07 03:33:08 +0000