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-rw-r--r--openbsc/include/openbsc/transaction.h10
-rw-r--r--openbsc/src/libmsc/gsm_04_11.c455
2 files changed, 197 insertions, 268 deletions
diff --git a/openbsc/include/openbsc/transaction.h b/openbsc/include/openbsc/transaction.h
index 04abb9c41..b6c859c71 100644
--- a/openbsc/include/openbsc/transaction.h
+++ b/openbsc/include/openbsc/transaction.h
@@ -6,6 +6,8 @@
#include <osmocom/core/linuxlist.h>
#include <openbsc/gsm_04_11.h>
#include <openbsc/mncc.h>
+#include <osmocom/gsm/gsm0411_smc.h>
+#include <osmocom/gsm/gsm0411_smr.h>
/* One transaction */
struct gsm_trans {
@@ -46,12 +48,8 @@ struct gsm_trans {
struct gsm_mncc msg; /* stores setup/disconnect/release message */
} cc;
struct {
- uint8_t link_id; /* RSL Link ID to be used for this trans */
- int is_mt; /* is this a MO (0) or MT (1) transfer */
- enum gsm411_cp_state cp_state;
- struct osmo_timer_list cp_timer;
-
- enum gsm411_rp_state rp_state;
+ struct gsm411_smc_inst smc_inst;
+ struct gsm411_smr_inst smr_inst;
struct gsm_sms *sms;
} sms;
diff --git a/openbsc/src/libmsc/gsm_04_11.c b/openbsc/src/libmsc/gsm_04_11.c
index be6b5b078..46bb074c4 100644
--- a/openbsc/src/libmsc/gsm_04_11.c
+++ b/openbsc/src/libmsc/gsm_04_11.c
@@ -6,6 +6,7 @@
* (C) 2009 by Harald Welte <laforge@gnumonks.org>
* (C) 2010-2012 by Holger Hans Peter Freyther <zecke@selfish.org>
* (C) 2010 by On-Waves
+ * (C) 2011 by Andreas Eversberg <jolly@eversberg.eu>
*
* All Rights Reserved
*
@@ -37,7 +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>
@@ -45,7 +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>
@@ -61,55 +60,9 @@
extern int smpp_try_deliver(struct gsm_sms *sms);
#endif
-#define GSM411_ALLOC_SIZE 1024
-#define GSM411_ALLOC_HEADROOM 128
-
void *tall_gsms_ctx;
static uint32_t new_callref = 0x40000001;
-static const struct value_string cp_cause_strs[] = {
- { GSM411_CP_CAUSE_NET_FAIL, "Network Failure" },
- { GSM411_CP_CAUSE_CONGESTION, "Congestion" },
- { GSM411_CP_CAUSE_INV_TRANS_ID, "Invalid Transaction ID" },
- { GSM411_CP_CAUSE_SEMANT_INC_MSG, "Semantically Incorrect Message" },
- { GSM411_CP_CAUSE_INV_MAND_INF, "Invalid Mandatory Information" },
- { GSM411_CP_CAUSE_MSGTYPE_NOTEXIST, "Message Type doesn't exist" },
- { GSM411_CP_CAUSE_MSG_INCOMP_STATE,
- "Message incompatible with protocol state" },
- { GSM411_CP_CAUSE_IE_NOTEXIST, "IE does not exist" },
- { GSM411_CP_CAUSE_PROTOCOL_ERR, "Protocol Error" },
- { 0, 0 }
-};
-
-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)
{
@@ -169,40 +122,11 @@ static void send_signal(int sig_no,
osmo_signal_dispatch(SS_SMS, sig_no, &sig);
}
-/*
- * This should be called whenever all SMS to a given subscriber
- * on a given connection has been sent. This will inform the higher
- * layers that a channel can be given up.
- */
-static void gsm411_release_conn(struct gsm_subscriber_connection *conn)
-{
- if (!conn)
- return;
-
- subscr_put_channel(conn->subscr);
-}
-
-struct msgb *gsm411_msgb_alloc(void)
-{
- return msgb_alloc_headroom(GSM411_ALLOC_SIZE, GSM411_ALLOC_HEADROOM,
- "GSM 04.11");
-}
-
-static int gsm411_sendmsg(struct gsm_subscriber_connection *conn, struct msgb *msg, uint8_t link_id)
+static int gsm411_sendmsg(struct gsm_subscriber_connection *conn, struct msgb *msg)
{
DEBUGP(DLSMS, "GSM4.11 TX %s\n", osmo_hexdump(msg->data, msg->len));
msg->l3h = msg->data;
- return gsm0808_submit_dtap(conn, msg, link_id, 1);
-}
-
-/* SMC TC1* is expired */
-static void cp_timer_expired(void *data)
-{
- struct gsm_trans *trans = data;
-
- DEBUGP(DLSMS, "SMC Timer TC1* is expired, calling trans_free()\n");
- /* FIXME: we need to re-transmit the last CP-DATA 1..3 times */
- trans_free(trans);
+ return gsm0808_submit_dtap(conn, msg, UM_SAPI_SMS, 1);
}
/* Prefix msg with a 04.08/04.11 CP header */
@@ -216,45 +140,51 @@ static int gsm411_cp_sendmsg(struct msgb *msg, struct gsm_trans *trans,
gh->proto_discr = trans->protocol | (trans->transaction_id<<4);
gh->msg_type = msg_type;
- /* mobile originating */
- switch (gh->msg_type) {
- case GSM411_MT_CP_DATA:
- /* 5.2.3.1.2: enter MO-wait for CP-ack */
- /* 5.2.3.2.3: enter MT-wait for CP-ACK */
- trans->sms.cp_state = GSM411_CPS_WAIT_CP_ACK;
- trans->sms.cp_timer.data = trans;
- trans->sms.cp_timer.cb = cp_timer_expired;
- /* 5.3.2.1: Set Timer TC1A */
- osmo_timer_schedule(&trans->sms.cp_timer, GSM411_TMR_TC1A);
- DEBUGP(DLSMS, "TX: CP-DATA ");
+ DEBUGP(DLSMS, "sending CP message (trans=%x)\n", trans->transaction_id);
+
+ return gsm411_sendmsg(trans->conn, msg);
+}
+
+/* mm_send: receive MMCCSMS sap message from SMC */
+static int gsm411_mm_send(struct gsm411_smc_inst *inst, int msg_type,
+ struct msgb *msg, int cp_msg_type)
+{
+ struct gsm_trans *trans =
+ container_of(inst, struct gsm_trans, sms.smc_inst);
+ int rc = 0;
+
+ switch (msg_type) {
+ case GSM411_MMSMS_EST_REQ:
+ /* recycle msg */
+ rc = gsm411_smc_recv(inst, GSM411_MMSMS_EST_CNF, msg, 0);
+ msgb_free(msg); /* upper layer does not free msg */
break;
- case GSM411_MT_CP_ACK:
- DEBUGP(DLSMS, "TX: CP-ACK ");
+ case GSM411_MMSMS_DATA_REQ:
+ rc = gsm411_cp_sendmsg(msg, trans, cp_msg_type);
break;
- case GSM411_MT_CP_ERROR:
- DEBUGP(DLSMS, "TX: CP-ERROR ");
+ 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;
}
- DEBUGPC(DLSMS, "trans=%x\n", trans->transaction_id);
-
- return gsm411_sendmsg(trans->conn, msg, trans->sms.link_id);
+ return rc;
}
-/* Prefix msg with a RP-DATA header and send as CP-DATA */
-static int gsm411_rp_sendmsg(struct msgb *msg, struct gsm_trans *trans,
- uint8_t rp_msg_type, uint8_t rp_msg_ref)
+/* 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_cp_sendmsg(msg, trans, GSM411_MT_CP_DATA);
+ /* 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)
@@ -504,13 +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(msg, trans, GSM411_MT_RP_ACK_MT, msg_ref);
+ 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,
@@ -521,9 +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(msg, trans, GSM411_MT_RP_ERROR_MT, msg_ref);
+ 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 */
@@ -594,12 +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,
@@ -618,11 +561,7 @@ static int gsm411_rx_rp_ack(struct msgb *msg, struct gsm_trans *trans,
sms = db_sms_get_unsent_for_subscr(trans->subscr);
if (sms)
gsm411_send_sms(trans->conn, sms);
- else
- gsm411_release_conn(trans->conn);
- /* free the transaction here */
- trans_free(trans);
return 0;
}
@@ -640,15 +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,
@@ -684,7 +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
@@ -695,13 +625,12 @@ static int gsm411_rx_rp_smma(struct msgb *msg, struct gsm_trans *trans,
sms = db_sms_get_unsent_for_subscr(trans->subscr);
if (sms)
gsm411_send_sms(trans->conn, sms);
- else
- gsm411_release_conn(trans->conn);
return rc;
}
-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;
@@ -711,62 +640,107 @@ 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;
}
-/* send CP-ACK to given transaction */
-static int gsm411_tx_cp_ack(struct gsm_trans *trans)
+/* 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 msgb *msg = gsm411_msgb_alloc();
- int rc;
-
- rc = gsm411_cp_sendmsg(msg, trans, GSM411_MT_CP_ACK);
+ struct gsm_trans *trans =
+ container_of(inst, struct gsm_trans, sms.smr_inst);
+ struct gsm48_hdr *gh = msgb_l3(msg);
+ int rc = 0;
- if (trans->sms.is_mt) {
- /* If this is a MT SMS DELIVER, we can clear transaction here */
- trans->sms.cp_state = GSM411_CPS_IDLE;
- //trans_free(trans);
+ 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;
}
-static int gsm411_tx_cp_error(struct gsm_trans *trans, uint8_t cause)
+/* receive MNCCSMS sap message from SMC
+ * NOTE: Message is freed by sender
+ */
+static int gsm411_mn_recv(struct gsm411_smc_inst *inst, int msg_type,
+ struct msgb *msg)
{
- struct msgb *msg = gsm411_msgb_alloc();
- uint8_t *causep;
-
- LOGP(DLSMS, LOGL_NOTICE, "TX CP-ERROR, cause %d (%s)\n", cause,
- get_value_string(cp_cause_strs, cause));
+ struct gsm_trans *trans =
+ container_of(inst, struct gsm_trans, sms.smc_inst);
+ struct gsm48_hdr *gh = msgb_l3(msg);
+ int rc = 0;
- causep = msgb_put(msg, 1);
- *causep = cause;
+ switch (msg_type) {
+ case GSM411_MNSMS_EST_IND:
+ case GSM411_MNSMS_DATA_IND:
+ DEBUGP(DLSMS, "MNSMS-DATA/EST-IND\n");
+ rc = gsm411_smr_recv(&trans->sms.smr_inst, msg_type, msg);
+ break;
+ case GSM411_MNSMS_ERROR_IND:
+ if (gh)
+ DEBUGP(DLSMS, "MNSMS-ERROR-IND, cause %d (%s)\n",
+ gh->data[0],
+ get_value_string(gsm411_cp_cause_strs,
+ 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;
+ }
- return gsm411_cp_sendmsg(msg, trans, GSM411_MT_CP_ERROR);
+ return rc;
}
/* Entry point for incoming GSM48_PDISC_SMS from abis_rsl.c */
@@ -777,112 +751,64 @@ int gsm0411_rcv_sms(struct gsm_subscriber_connection *conn,
uint8_t msg_type = gh->msg_type;
uint8_t transaction_id = ((gh->proto_discr >> 4) ^ 0x8); /* flip */
struct gsm_trans *trans;
+ int new_trans = 0;
int rc = 0;
if (!conn->subscr)
return -EIO;
/* FIXME: send some error message */
- DEBUGP(DLSMS, "trans_id=%x ", transaction_id);
+ DEBUGP(DLSMS, "receiving data (trans_id=%x)\n", transaction_id);
trans = trans_find_by_id(conn->subscr, GSM48_PDISC_SMS,
transaction_id);
if (!trans) {
- DEBUGPC(DLSMS, "(new) ");
+ DEBUGP(DLSMS, " -> (new transaction)\n");
trans = trans_alloc(conn->subscr, GSM48_PDISC_SMS,
transaction_id, new_callref++);
if (!trans) {
- DEBUGPC(DLSMS, "No memory for trans\n");
+ DEBUGP(DLSMS, " -> No memory for trans\n");
/* FIXME: send some error message */
return -ENOMEM;
}
- trans->sms.cp_state = GSM411_CPS_IDLE;
- trans->sms.rp_state = GSM411_RPS_IDLE;
- trans->sms.is_mt = 0;
- trans->sms.link_id = UM_SAPI_SMS;
+ gsm411_smc_init(&trans->sms.smc_inst, 0, 1,
+ gsm411_mn_recv, gsm411_mm_send);
+ gsm411_smr_init(&trans->sms.smr_inst, 0, 1,
+ gsm411_rl_recv, gsm411_mn_send);
trans->conn = conn;
+
+ new_trans = 1;
}
- switch(msg_type) {
- case GSM411_MT_CP_DATA:
- DEBUGPC(DLSMS, "RX SMS CP-DATA\n");
-
- /* 5.4: For MO, if a CP-DATA is received for a new
- * transaction, equals reception of an implicit
- * last CP-ACK for previous transaction */
- if (trans->sms.cp_state == GSM411_CPS_IDLE) {
- int i;
- struct gsm_trans *ptrans;
-
- /* Scan through all remote initiated transactions */
- for (i=8; i<15; i++) {
- if (i == transaction_id)
- continue;
-
- ptrans = trans_find_by_id(conn->subscr,
- GSM48_PDISC_SMS, i);
- if (!ptrans)
- continue;
-
- DEBUGP(DLSMS, "Implicit CP-ACK for trans_id=%x\n", i);
-
- /* Finish it for good */
- osmo_timer_del(&ptrans->sms.cp_timer);
- ptrans->sms.cp_state = GSM411_CPS_IDLE;
- trans_free(ptrans);
- }
- }
+ /* 5.4: For MO, if a CP-DATA is received for a new
+ * transaction, equals reception of an implicit
+ * last CP-ACK for previous transaction */
+ if (trans->sms.smc_inst.cp_state == GSM411_CPS_IDLE
+ && msg_type == GSM411_MT_CP_DATA) {
+ int i;
+ struct gsm_trans *ptrans;
+
+ /* Scan through all remote initiated transactions */
+ for (i=8; i<15; i++) {
+ if (i == transaction_id)
+ continue;
- /* 5.2.3.1.3: MO state exists when SMC has received
- * CP-DATA, including sending of the assoc. CP-ACK */
- /* 5.2.3.2.4: MT state exists when SMC has received
- * CP-DATA, including sending of the assoc. CP-ACK */
- trans->sms.cp_state = GSM411_CPS_MM_ESTABLISHED;
+ ptrans = trans_find_by_id(conn->subscr,
+ GSM48_PDISC_SMS, i);
+ if (!ptrans)
+ continue;
- /* SMC instance acknowledges the CP-DATA frame */
- gsm411_tx_cp_ack(trans);
-
- rc = gsm411_rx_cp_data(msg, gh, trans);
-#if 0
- /* Send CP-ACK or CP-ERORR in response */
- if (rc < 0) {
- rc = gsm411_tx_cp_error(trans, GSM411_CP_CAUSE_NET_FAIL);
- } else
- rc = gsm411_tx_cp_ack(trans);
-#endif
- break;
- case GSM411_MT_CP_ACK:
- /* previous CP-DATA in this transaction was confirmed */
- DEBUGPC(DLSMS, "RX SMS CP-ACK\n");
- /* 5.2.3.1.3: MO state exists when SMC has received CP-ACK */
- /* 5.2.3.2.4: MT state exists when SMC has received CP-ACK */
- trans->sms.cp_state = GSM411_CPS_MM_ESTABLISHED;
- /* Stop TC1* after CP-ACK has been received */
- osmo_timer_del(&trans->sms.cp_timer);
-
- if (!trans->sms.is_mt) {
- /* FIXME: we have sent one CP-DATA, which was now
- * acknowledged. Check if we want to transfer more,
- * i.e. multi-part message */
- trans->sms.cp_state = GSM411_CPS_IDLE;
- trans_free(trans);
+ DEBUGP(DLSMS, "Implicit CP-ACK for trans_id=%x\n", i);
+
+ /* Finish it for good */
+ trans_free(ptrans);
}
- break;
- case GSM411_MT_CP_ERROR:
- DEBUGPC(DLSMS, "RX SMS CP-ERROR, cause %d (%s)\n", gh->data[0],
- get_value_string(cp_cause_strs, gh->data[0]));
- osmo_timer_del(&trans->sms.cp_timer);
- trans->sms.cp_state = GSM411_CPS_IDLE;
- trans_free(trans);
- break;
- default:
- DEBUGPC(DLSMS, "RX Unimplemented CP msg_type: 0x%02x\n", msg_type);
- rc = gsm411_tx_cp_error(trans, GSM411_CP_CAUSE_MSGTYPE_NOTEXIST);
- trans->sms.cp_state = GSM411_CPS_IDLE;
- trans_free(trans);
- break;
}
+ gsm411_smc_recv(&trans->sms.smc_inst,
+ (new_trans) ? GSM411_MMSMS_EST_IND : GSM411_MMSMS_DATA_IND,
+ msg, msg_type);
+
return rc;
}
@@ -898,7 +824,8 @@ int gsm411_send_sms(struct gsm_subscriber_connection *conn, struct gsm_sms *sms)
int transaction_id;
int rc;
- transaction_id = trans_assign_trans_id(conn->subscr, GSM48_PDISC_SMS, 0);
+ transaction_id =
+ trans_assign_trans_id(conn->subscr, GSM48_PDISC_SMS, 0);
if (transaction_id == -1) {
LOGP(DLSMS, LOGL_ERROR, "No available transaction ids\n");
send_signal(S_SMS_UNKNOWN_ERROR, NULL, sms, 0);
@@ -918,11 +845,11 @@ int gsm411_send_sms(struct gsm_subscriber_connection *conn, struct gsm_sms *sms)
/* FIXME: send some error message */
return -ENOMEM;
}
- trans->sms.cp_state = GSM411_CPS_IDLE;
- trans->sms.rp_state = GSM411_RPS_IDLE;
- trans->sms.is_mt = 1;
+ gsm411_smc_init(&trans->sms.smc_inst, sms->id, 1,
+ gsm411_mn_recv, gsm411_mm_send);
+ 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 ? */
trans->conn = conn;
@@ -948,8 +875,9 @@ int gsm411_send_sms(struct gsm_subscriber_connection *conn, struct gsm_sms *sms)
rc = gsm340_gen_tpdu(msg, sms);
if (rc < 0) {
send_signal(S_SMS_UNKNOWN_ERROR, trans, sms, 0);
- trans_free(trans);
sms_free(sms);
+ trans->sms.sms = NULL;
+ trans_free(trans);
msgb_free(msg);
return rc;
}
@@ -961,8 +889,8 @@ 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(msg, trans, GSM411_MT_RP_DATA_MT, msg_ref);
- /* 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
@@ -1020,30 +948,36 @@ 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;
+
if (trans->sms.sms) {
LOGP(DLSMS, LOGL_ERROR, "Transaction contains SMS.\n");
send_signal(S_SMS_UNKNOWN_ERROR, trans, trans->sms.sms, 0);
sms_free(trans->sms.sms);
trans->sms.sms = NULL;
}
-
- osmo_timer_del(&trans->sms.cp_timer);
}
void gsm411_sapi_n_reject(struct gsm_subscriber_connection *conn)
{
- struct gsm_subscriber *subscr;
struct gsm_network *net;
struct gsm_trans *trans, *tmp;
- subscr = subscr_get(conn->subscr);
net = conn->bts->network;
llist_for_each_entry_safe(trans, tmp, &net->trans_list, entry)
if (trans->conn == conn) {
struct gsm_sms *sms = trans->sms.sms;
if (!sms) {
- LOGP(DLSMS, LOGL_ERROR, "SAPI Reject but no SMS.\n");
+ LOGP(DLSMS, LOGL_ERROR, "SAPI Reject but no "
+ "SMS.\n");
continue;
}
@@ -1052,8 +986,5 @@ void gsm411_sapi_n_reject(struct gsm_subscriber_connection *conn)
trans->sms.sms = NULL;
trans_free(trans);
}
-
- subscr_put_channel(subscr);
- subscr_put(subscr);
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-26 22:57:28 +0000