| /* 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> |
| #include <netinet/in.h> |
| |
| struct gsm_network; |
| struct msgb; |
| struct gsm0808_channel_type; |
| |
| |
| /* One end of a call */ |
| struct gsm_call { |
| struct llist_head entry; |
| |
| /* network handle */ |
| struct gsm_network *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 performed 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 |
| #define MNCC_F_GCR 0x4000 |
| #define MNCC_F_HIGHL_COMPAT 0x8000 |
| #define MNCC_F_LOWL_COMPAT 0x10000 |
| |
| /* UPDATEME when adding new MNCC_F_* entries above */ |
| #define MNCC_F_ALL 0x1ffff |
| |
| #define GSM_MAX_LOWL_COMPAT 16 /* (18 with TLV) */ |
| #define GSM_MAX_HIGHL_COMPAT 3 /* (5 with TLV) */ |
| |
| struct gsm_mncc { |
| /* context based information */ |
| uint32_t msg_type; |
| uint32_t callref; |
| |
| /* which fields are present */ |
| uint32_t fields; |
| |
| /* data derived information (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; |
| |
| /* Global Call Reference (encoded as per 3GPP TS 29.205) */ |
| uint8_t gcr[16]; |
| |
| /* A buffer to contain SDP ('\0' terminated) */ |
| char sdp[1024]; |
| |
| /* Additional information that extends current socket interface version. */ |
| |
| /* The content requals of Low Layer compatibility IE, described in 3GPP TS 24.008 §10.5.4.18. */ |
| struct gsm_mncc_lowl_compat { |
| uint8_t len; |
| uint8_t compat[GSM_MAX_LOWL_COMPAT]; |
| } llc; |
| |
| /* The content requals of High Layer compatibility IE, described in 3GPP TS 24.008 §10.5.4.16. */ |
| struct gsm_mncc_highl_compat { |
| uint8_t len; |
| uint8_t compat[GSM_MAX_HIGHL_COMPAT]; |
| } hlc; |
| }; |
| |
| struct gsm_data_frame { |
| uint32_t msg_type; |
| uint32_t callref; |
| unsigned char data[0]; |
| }; |
| |
| #define MNCC_SOCK_VERSION 8 |
| 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; |
| struct sockaddr_storage addr; |
| uint32_t payload_type; |
| uint32_t payload_msg_type; |
| char sdp[1024]; |
| }; |
| |
| struct gsm_mncc_bridge { |
| uint32_t msg_type; |
| uint32_t callref[2]; |
| }; |
| |
| union mncc_msg { |
| uint32_t msg_type; |
| struct gsm_mncc signal; |
| struct gsm_mncc_hello hello; |
| struct gsm_data_frame data_frame; |
| struct gsm_mncc_rtp rtp; |
| struct gsm_mncc_bridge bridge; |
| }; |
| |
| const char *get_mncc_name(int value); |
| void mncc_set_cause(struct gsm_mncc *data, int loc, int val); |
| |
| /* 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) |
| |
| int mncc_prim_check(const struct gsm_mncc *mncc_prim, unsigned int len); |
| int mncc_check_sdp_termination(const char *label, const struct gsm_mncc *mncc, unsigned int len, const char *sdp); |
| |
| int mncc_bearer_cap_to_channel_type(struct gsm0808_channel_type *ct, const struct gsm_mncc_bearer_cap *bc); |
| |
| #endif |