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authorHolger Hans Peter Freyther <holger@moiji-mobile.com>2016-03-21 15:46:53 +0100
committerHolger Hans Peter Freyther <holger@moiji-mobile.com>2016-03-21 15:46:53 +0100
commit80095748f91223d12a878f27de94c1f75cceddf2 (patch)
treedf18c58cd9159a6be52a01753aab5a434219bf9d
parent11713d88e4d2e60621e7ff7032a47f29ef53a30d (diff)
mncc: Add the protocol description from OpenBSC
-rw-r--r--src/mncc_protocol.h219
1 files changed, 219 insertions, 0 deletions
diff --git a/src/mncc_protocol.h b/src/mncc_protocol.h
new file mode 100644
index 0000000..49f0c8b
--- /dev/null
+++ b/src/mncc_protocol.h
@@ -0,0 +1,219 @@
+/* GSM Mobile Radio Interface Layer 3 messages on the A-bis interface
+ * 3GPP TS 04.08 version 7.21.0 Release 1998 / ETSI TS 100 940 V7.21.0 */
+
+/* (C) 2008-2009 by Harald Welte <laforge@gnumonks.org>
+ * (C) 2008, 2009 by Holger Hans Peter Freyther <zecke@selfish.org>
+ *
+ * All Rights Reserved
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef _MNCC_H
+#define _MNCC_H
+
+#include <osmocom/core/linuxlist.h>
+#include <osmocom/gsm/mncc.h>
+
+#include <stdint.h>
+
+struct gsm_network;
+struct msgb;
+
+
+/* One end of a call */
+struct gsm_call {
+ struct llist_head entry;
+
+ /* network handle */
+ void *net;
+
+ /* the 'local' transaction */
+ uint32_t callref;
+ /* the 'remote' transaction */
+ uint32_t remote_ref;
+};
+
+#define MNCC_SETUP_REQ 0x0101
+#define MNCC_SETUP_IND 0x0102
+#define MNCC_SETUP_RSP 0x0103
+#define MNCC_SETUP_CNF 0x0104
+#define MNCC_SETUP_COMPL_REQ 0x0105
+#define MNCC_SETUP_COMPL_IND 0x0106
+/* MNCC_REJ_* is perfomed via MNCC_REL_* */
+#define MNCC_CALL_CONF_IND 0x0107
+#define MNCC_CALL_PROC_REQ 0x0108
+#define MNCC_PROGRESS_REQ 0x0109
+#define MNCC_ALERT_REQ 0x010a
+#define MNCC_ALERT_IND 0x010b
+#define MNCC_NOTIFY_REQ 0x010c
+#define MNCC_NOTIFY_IND 0x010d
+#define MNCC_DISC_REQ 0x010e
+#define MNCC_DISC_IND 0x010f
+#define MNCC_REL_REQ 0x0110
+#define MNCC_REL_IND 0x0111
+#define MNCC_REL_CNF 0x0112
+#define MNCC_FACILITY_REQ 0x0113
+#define MNCC_FACILITY_IND 0x0114
+#define MNCC_START_DTMF_IND 0x0115
+#define MNCC_START_DTMF_RSP 0x0116
+#define MNCC_START_DTMF_REJ 0x0117
+#define MNCC_STOP_DTMF_IND 0x0118
+#define MNCC_STOP_DTMF_RSP 0x0119
+#define MNCC_MODIFY_REQ 0x011a
+#define MNCC_MODIFY_IND 0x011b
+#define MNCC_MODIFY_RSP 0x011c
+#define MNCC_MODIFY_CNF 0x011d
+#define MNCC_MODIFY_REJ 0x011e
+#define MNCC_HOLD_IND 0x011f
+#define MNCC_HOLD_CNF 0x0120
+#define MNCC_HOLD_REJ 0x0121
+#define MNCC_RETRIEVE_IND 0x0122
+#define MNCC_RETRIEVE_CNF 0x0123
+#define MNCC_RETRIEVE_REJ 0x0124
+#define MNCC_USERINFO_REQ 0x0125
+#define MNCC_USERINFO_IND 0x0126
+#define MNCC_REJ_REQ 0x0127
+#define MNCC_REJ_IND 0x0128
+
+#define MNCC_BRIDGE 0x0200
+#define MNCC_FRAME_RECV 0x0201
+#define MNCC_FRAME_DROP 0x0202
+#define MNCC_LCHAN_MODIFY 0x0203
+#define MNCC_RTP_CREATE 0x0204
+#define MNCC_RTP_CONNECT 0x0205
+#define MNCC_RTP_FREE 0x0206
+
+#define GSM_TCHF_FRAME 0x0300
+#define GSM_TCHF_FRAME_EFR 0x0301
+#define GSM_TCHH_FRAME 0x0302
+#define GSM_TCH_FRAME_AMR 0x0303
+#define GSM_BAD_FRAME 0x03ff
+
+#define MNCC_SOCKET_HELLO 0x0400
+
+#define GSM_MAX_FACILITY 128
+#define GSM_MAX_SSVERSION 128
+#define GSM_MAX_USERUSER 128
+
+#define MNCC_F_BEARER_CAP 0x0001
+#define MNCC_F_CALLED 0x0002
+#define MNCC_F_CALLING 0x0004
+#define MNCC_F_REDIRECTING 0x0008
+#define MNCC_F_CONNECTED 0x0010
+#define MNCC_F_CAUSE 0x0020
+#define MNCC_F_USERUSER 0x0040
+#define MNCC_F_PROGRESS 0x0080
+#define MNCC_F_EMERGENCY 0x0100
+#define MNCC_F_FACILITY 0x0200
+#define MNCC_F_SSVERSION 0x0400
+#define MNCC_F_CCCAP 0x0800
+#define MNCC_F_KEYPAD 0x1000
+#define MNCC_F_SIGNAL 0x2000
+
+struct gsm_mncc {
+ /* context based information */
+ uint32_t msg_type;
+ uint32_t callref;
+
+ /* which fields are present */
+ uint32_t fields;
+
+ /* data derived informations (MNCC_F_ based) */
+ struct gsm_mncc_bearer_cap bearer_cap;
+ struct gsm_mncc_number called;
+ struct gsm_mncc_number calling;
+ struct gsm_mncc_number redirecting;
+ struct gsm_mncc_number connected;
+ struct gsm_mncc_cause cause;
+ struct gsm_mncc_progress progress;
+ struct gsm_mncc_useruser useruser;
+ struct gsm_mncc_facility facility;
+ struct gsm_mncc_cccap cccap;
+ struct gsm_mncc_ssversion ssversion;
+ struct {
+ int sup;
+ int inv;
+ } clir;
+ int signal;
+
+ /* data derived information, not MNCC_F based */
+ int keypad;
+ int more;
+ int notify; /* 0..127 */
+ int emergency;
+ char imsi[16];
+
+ unsigned char lchan_type;
+ unsigned char lchan_mode;
+};
+
+struct gsm_data_frame {
+ uint32_t msg_type;
+ uint32_t callref;
+ unsigned char data[0];
+};
+
+#define MNCC_SOCK_VERSION 5
+struct gsm_mncc_hello {
+ uint32_t msg_type;
+ uint32_t version;
+
+ /* send the sizes of the structs */
+ uint32_t mncc_size;
+ uint32_t data_frame_size;
+
+ /* send some offsets */
+ uint32_t called_offset;
+ uint32_t signal_offset;
+ uint32_t emergency_offset;
+ uint32_t lchan_type_offset;
+};
+
+struct gsm_mncc_rtp {
+ uint32_t msg_type;
+ uint32_t callref;
+ uint32_t ip;
+ uint16_t port;
+ uint32_t payload_type;
+ uint32_t payload_msg_type;
+};
+
+struct gsm_mncc_bridge {
+ uint32_t msg_type;
+ uint32_t callref[2];
+};
+
+const char *get_mncc_name(int value);
+void mncc_set_cause(struct gsm_mncc *data, int loc, int val);
+void cc_tx_to_mncc(struct gsm_network *net, struct msgb *msg);
+
+/* input from CC code into mncc_builtin */
+int int_mncc_recv(struct gsm_network *net, struct msgb *msg);
+
+/* input from CC code into mncc_sock */
+int mncc_sock_from_cc(struct gsm_network *net, struct msgb *msg);
+
+int mncc_sock_init(struct gsm_network *net, const char *sock_path);
+
+#define mncc_is_data_frame(msg_type) \
+ (msg_type == GSM_TCHF_FRAME \
+ || msg_type == GSM_TCHF_FRAME_EFR \
+ || msg_type == GSM_TCHH_FRAME \
+ || msg_type == GSM_TCH_FRAME_AMR \
+ || msg_type == GSM_BAD_FRAME)
+
+
+#endif