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-rw-r--r--src/gsm/Makefile.am2
-rw-r--r--src/gsm/libosmogsm.map3
-rw-r--r--src/gsm/mncc.c416
3 files changed, 420 insertions, 1 deletions
diff --git a/src/gsm/Makefile.am b/src/gsm/Makefile.am
index 12f56db1..f85aba39 100644
--- a/src/gsm/Makefile.am
+++ b/src/gsm/Makefile.am
@@ -30,7 +30,7 @@ libgsmint_la_SOURCES = a5.c rxlev_stat.c tlv_parser.c comp128.c comp128v23.c \
milenage/aes-internal.c milenage/aes-internal-enc.c \
milenage/milenage.c gan.c ipa.c gsm0341.c apn.c \
gsup.c gprs_gea.c gsm0503_conv.c oap.c gsm0808_utils.c \
- gsm23003.c
+ gsm23003.c mncc.c
libgsmint_la_LDFLAGS = -no-undefined
libgsmint_la_LIBADD = $(top_builddir)/src/libosmocore.la
diff --git a/src/gsm/libosmogsm.map b/src/gsm/libosmogsm.map
index 985ec839..9a7073df 100644
--- a/src/gsm/libosmogsm.map
+++ b/src/gsm/libosmogsm.map
@@ -427,5 +427,8 @@ osmo_oap_decode;
osmo_imsi_str_valid;
osmo_msisdn_str_valid;
+osmo_mncc_stringify;
+_osmo_mncc_log;
+
local: *;
};
diff --git a/src/gsm/mncc.c b/src/gsm/mncc.c
new file mode 100644
index 00000000..fa4726cf
--- /dev/null
+++ b/src/gsm/mncc.c
@@ -0,0 +1,416 @@
+/* mncc.c - utility routines for the MNCC API between the 04.08
+ * message parsing and the actual Call Control logic */
+
+/* (C) 2008-2017 by Harald Welte <laforge@gnumonks.org>
+ * (C) 2009 by Andreas Eversberg <Andreas.Eversberg@versatel.de>
+ * 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/>.
+ *
+ */
+
+#include "../config.h"
+
+#ifdef HAVE_SYS_SOCKET_H
+
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <arpa/inet.h>
+#include <netinet/in.h>
+
+#include <osmocom/core/msgb.h>
+#include <osmocom/core/logging.h>
+#include <osmocom/gsm/mncc.h>
+
+/* FIXME FIXME FIXME FIXME FIXME START */
+#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];
+};
+
+/* FIXME FIXME FIXME FIXME FIXME END */
+
+const struct value_string osmo_mncc_names[] = {
+ { MNCC_SETUP_REQ, "MNCC_SETUP_REQ" },
+ { MNCC_SETUP_IND, "MNCC_SETUP_IND" },
+ { MNCC_SETUP_RSP, "MNCC_SETUP_RSP" },
+ { MNCC_SETUP_CNF, "MNCC_SETUP_CNF" },
+ { MNCC_SETUP_COMPL_REQ, "MNCC_SETUP_COMPL_REQ" },
+ { MNCC_SETUP_COMPL_IND, "MNCC_SETUP_COMPL_IND" },
+ { MNCC_CALL_CONF_IND, "MNCC_CALL_CONF_IND" },
+ { MNCC_CALL_PROC_REQ, "MNCC_CALL_PROC_REQ" },
+ { MNCC_PROGRESS_REQ, "MNCC_PROGRESS_REQ" },
+ { MNCC_ALERT_REQ, "MNCC_ALERT_REQ" },
+ { MNCC_ALERT_IND, "MNCC_ALERT_IND" },
+ { MNCC_NOTIFY_REQ, "MNCC_NOTIFY_REQ" },
+ { MNCC_NOTIFY_IND, "MNCC_NOTIFY_IND" },
+ { MNCC_DISC_REQ, "MNCC_DISC_REQ" },
+ { MNCC_DISC_IND, "MNCC_DISC_IND" },
+ { MNCC_REL_REQ, "MNCC_REL_REQ" },
+ { MNCC_REL_IND, "MNCC_REL_IND" },
+ { MNCC_REL_CNF, "MNCC_REL_CNF" },
+ { MNCC_FACILITY_REQ, "MNCC_FACILITY_REQ" },
+ { MNCC_FACILITY_IND, "MNCC_FACILITY_IND" },
+ { MNCC_START_DTMF_IND, "MNCC_START_DTMF_IND" },
+ { MNCC_START_DTMF_RSP, "MNCC_START_DTMF_RSP" },
+ { MNCC_START_DTMF_REJ, "MNCC_START_DTMF_REJ" },
+ { MNCC_STOP_DTMF_IND, "MNCC_STOP_DTMF_IND" },
+ { MNCC_STOP_DTMF_RSP, "MNCC_STOP_DTMF_RSP" },
+ { MNCC_MODIFY_REQ, "MNCC_MODIFY_REQ" },
+ { MNCC_MODIFY_IND, "MNCC_MODIFY_IND" },
+ { MNCC_MODIFY_RSP, "MNCC_MODIFY_RSP" },
+ { MNCC_MODIFY_CNF, "MNCC_MODIFY_CNF" },
+ { MNCC_MODIFY_REJ, "MNCC_MODIFY_REJ" },
+ { MNCC_HOLD_IND, "MNCC_HOLD_IND" },
+ { MNCC_HOLD_CNF, "MNCC_HOLD_CNF" },
+ { MNCC_HOLD_REJ, "MNCC_HOLD_REJ" },
+ { MNCC_RETRIEVE_IND, "MNCC_RETRIEVE_IND" },
+ { MNCC_RETRIEVE_CNF, "MNCC_RETRIEVE_CNF" },
+ { MNCC_RETRIEVE_REJ, "MNCC_RETRIEVE_REJ" },
+ { MNCC_USERINFO_REQ, "MNCC_USERINFO_REQ" },
+ { MNCC_USERINFO_IND, "MNCC_USERINFO_IND" },
+ { MNCC_REJ_REQ, "MNCC_REJ_REQ" },
+ { MNCC_REJ_IND, "MNCC_REJ_IND" },
+ { MNCC_BRIDGE, "MNCC_BRIDGE" },
+ { MNCC_FRAME_RECV, "MNCC_FRAME_RECV" },
+ { MNCC_FRAME_DROP, "MNCC_FRAME_DROP" },
+ { MNCC_LCHAN_MODIFY, "MNCC_LCHAN_MODIFY" },
+ { MNCC_RTP_CREATE, "MNCC_RTP_CREATE" },
+ { MNCC_RTP_CONNECT, "MNCC_RTP_CONNECT" },
+ { MNCC_RTP_FREE, "MNCC_RTP_FREE" },
+ { GSM_TCHF_FRAME, "GSM_TCHF_FRAME" },
+ { GSM_TCHF_FRAME_EFR, "GSM_TCHF_FRAME_EFR" },
+ { GSM_TCHH_FRAME, "GSM_TCHH_FRAME" },
+ { GSM_TCH_FRAME_AMR, "GSM_TCH_FRAME_AMR" },
+ { GSM_BAD_FRAME, "GSM_BAD_FRAME" },
+ { MNCC_SOCKET_HELLO, "MNCC_SOCKET_HELLO" },
+ { 0, NULL },
+};
+
+static inline const char *osmo_mncc_name(uint32_t msg_type) {
+ return get_value_string(osmo_mncc_names, msg_type);
+}
+
+static void mncc_dump_rtp(struct msgb *str, const uint8_t *msg, unsigned int len)
+{
+ const struct gsm_mncc_rtp *rtp = (const struct gsm_mncc_rtp *) msg;
+ struct in_addr ia;
+ if (len < sizeof(*rtp)) {
+ msgb_printf(str, "short MNCC RTP message (%u bytes)", len);
+ return;
+ }
+
+ ia.s_addr = rtp->ip;
+ msgb_printf(str, "%s(ref=0x%08x, ip=%s, port=%u, pt=%u, pt_mt=%u)",
+ osmo_mncc_name(rtp->msg_type), rtp->callref, inet_ntoa(ia),
+ ntohs(rtp->port), rtp->payload_type, rtp->payload_msg_type);
+}
+
+static void mncc_dump_data(struct msgb *str, const uint8_t *msg, unsigned int len)
+{
+ const struct gsm_data_frame *data = (const struct gsm_data_frame *) msg;
+ if (len < sizeof(*data)) {
+ msgb_printf(str, "short MNCC DATA message (%u bytes)", len);
+ return;
+ }
+
+ msgb_printf(str, "%s(ref=0x%08x, data=%s)", osmo_mncc_name(data->msg_type), data->callref,
+ osmo_hexdump_nospc(data->data, len - sizeof(*data)));
+}
+
+static void mncc_dump_hello(struct msgb *str, const uint8_t *msg, unsigned int len)
+{
+ const struct gsm_mncc_hello *hello = (const struct gsm_mncc_hello *) msg;
+ if (len < sizeof(*hello)) {
+ msgb_printf(str, "short MNCC HELLO message (%u bytes)", len);
+ return;
+ }
+
+ msgb_printf(str, "%s(ver=%u, mncc_sz=%u, data_size=%u called_off=%u, signal_off=%u, "
+ "emerg_off=%u, lchan_t_off=%u)\n", osmo_mncc_name(hello->msg_type),
+ hello->version, hello->mncc_size, hello->data_frame_size, hello->called_offset,
+ hello->signal_offset, hello->emergency_offset, hello->lchan_type_offset);
+}
+
+static void msg_dump_number(struct msgb *str, const char *pfx, const struct gsm_mncc_number *num)
+{
+ msgb_printf(str, "%s(%d,%d,%d,%d,%s)", pfx, num->type, num->plan, num->present, num->screen,
+ num->number);
+}
+
+static void mncc_dump_bridge(struct msgb *str, const uint8_t *msg, unsigned int len)
+{
+ const struct gsm_mncc_bridge *bridge = (const struct gsm_mncc_bridge *)msg;
+ if (len < sizeof(*bridge)) {
+ msgb_printf(str, "short MNCC BRIDGE message (%u bytes)", len);
+ return;
+ }
+
+ msgb_printf(str, "%s(call_a=0x%08x, call_b=0x%08x)", osmo_mncc_name(bridge->msg_type),
+ bridge->callref[0], bridge->callref[1]);
+}
+
+static void mncc_dump_sign(struct msgb *str, const uint8_t *msg, unsigned int len)
+{
+ const struct gsm_mncc *sign = (const struct gsm_mncc *) msg;
+ if (len < sizeof(*sign)) {
+ msgb_printf(str, "short MNCC SIGN message (%u bytes)", len);
+ return;
+ }
+
+ msgb_printf(str, "%s(ref=0x%08x, imsi=%s", osmo_mncc_name(sign->msg_type), sign->callref,
+ sign->imsi);
+ //if (sign->fields & MNCC_F_BEARER_CAP)
+ // msgb_printf(str, ", bcap=%s", osmo_hexdump_nospc());
+ if (sign->fields & MNCC_F_CALLED)
+ msg_dump_number(str, ", called=", &sign->called);
+ if (sign->fields & MNCC_F_CALLING)
+ msg_dump_number(str, ", calling=", &sign->calling);
+ if (sign->fields & MNCC_F_REDIRECTING)
+ msg_dump_number(str, ", redirecting=", &sign->redirecting);
+ if (sign->fields & MNCC_F_CONNECTED)
+ msg_dump_number(str, ", connected=", &sign->connected);
+ if (sign->fields & MNCC_F_CAUSE) {
+ msgb_printf(str, ", cause=(%d,%d,%d,%d,%d,'%s')", sign->cause.location,
+ sign->cause.coding, sign->cause.rec, sign->cause.rec_val,
+ sign->cause.value, sign->cause.diag_len ? sign->cause.diag : "");
+ }
+ if (sign->fields & MNCC_F_USERUSER) {
+ msgb_printf(str, ", useruser=(%u, '%s')", sign->useruser.proto,
+ sign->useruser.info);
+ }
+ if (sign->fields & MNCC_F_PROGRESS) {
+ msgb_printf(str, ", progress=(%d, %d, %d)", sign->progress.coding,
+ sign->progress.location, sign->progress.descr);
+ }
+ if (sign->fields & MNCC_F_EMERGENCY)
+ msgb_printf(str, ", emergency=%d", sign->emergency);
+ if (sign->fields & MNCC_F_FACILITY)
+ msgb_printf(str, ", facility='%s'", sign->facility.info);
+ if (sign->fields & MNCC_F_SSVERSION)
+ msgb_printf(str, ", ssversion='%s'", sign->ssversion.info);
+ if (sign->fields & MNCC_F_CCCAP)
+ msgb_printf(str, ", cccap=(%d, %d)", sign->cccap.dtmf, sign->cccap.pcp);
+ if (sign->fields & MNCC_F_KEYPAD)
+ msgb_printf(str, ", keypad=%d", sign->keypad);
+ if (sign->fields & MNCC_F_SIGNAL)
+ msgb_printf(str, ", signal=%d", sign->signal);
+
+ msgb_printf(str, ", clir.sup=%d, clir.inv=%d, more=%d, notify=%d)", sign->clir.sup,
+ sign->clir.inv, sign->more, sign->notify);
+ /* lchan_type/lchan_mode? */
+}
+
+
+struct msgb *osmo_mncc_stringify(const uint8_t *msg, unsigned int len)
+{
+ uint32_t msg_type;
+ struct msgb *str = msgb_alloc(2048, __func__);
+
+ OSMO_ASSERT(str);
+
+ if (len <= sizeof(msg_type)) {
+ msgb_printf(str, "short MNCC message (%d bytes)", len);
+ return NULL;
+ }
+
+ msg_type = *(const uint32_t *)msg;
+ switch (msg_type) {
+ case MNCC_RTP_CREATE:
+ case MNCC_RTP_CONNECT:
+ case MNCC_RTP_FREE:
+ mncc_dump_rtp(str, msg, len);
+ break;
+ case GSM_TCHF_FRAME:
+ case GSM_TCHF_FRAME_EFR:
+ case GSM_TCHH_FRAME:
+ case GSM_TCH_FRAME_AMR:
+ case GSM_BAD_FRAME:
+ mncc_dump_data(str, msg, len);
+ break;
+ case MNCC_SOCKET_HELLO:
+ mncc_dump_hello(str, msg, len);
+ break;
+ case MNCC_BRIDGE:
+ mncc_dump_bridge(str, msg, len);
+ break;
+ default:
+ mncc_dump_sign(str, msg, len);
+ break;
+ }
+ return str;
+}
+
+void _osmo_mncc_log(int ss, int level, const char *file, int line, const char *prefix,
+ const uint8_t *msg, unsigned int len)
+{
+ struct msgb *str;
+ if (!log_check_level(ss, level))
+ return;
+
+ str = osmo_mncc_stringify(msg, len);
+ if (!str)
+ return;
+
+ logp2(ss, level, file, line, 0, "%s%s\n", prefix, str->data);
+ msgb_free(str);
+}
+
+#endif /* HAVE_SYS_SOCKET_H */
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-22 10:59:12 +0000