Implement IuCS (large refactoring and addition)
osmo-nitb becomes osmo-msc
add DIUCS debug log constant
add iucs.[hc]
add msc vty, remove nitb vty
add libiudummy, to avoid linking Iu deps in tests
Use new msc_tx_dtap() instead of gsm0808_submit_dtap()
libmgcp: add mgcpgw client API
bridge calls via mgcpgw
Enable MSC specific CTRL commands, bsc_base_ctrl_cmds_install() still needs to
be split up.
Change-Id: I5b5b6a9678b458affa86800afb1ec726e66eed88
diff --git a/src/Makefile.am b/src/Makefile.am
index c66f9e5..7e9e1dc 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -40,7 +40,7 @@
# Programs
SUBDIRS += \
- osmo-nitb \
+ osmo-msc \
osmo-bsc_mgcp \
utils \
ipaccess \
diff --git a/src/gprs/gprs_gmm.c b/src/gprs/gprs_gmm.c
index 577af1b..15e2fed 100644
--- a/src/gprs/gprs_gmm.c
+++ b/src/gprs/gprs_gmm.c
@@ -295,6 +295,10 @@
mm->gb.nsei = msgb_nsei(msg);
/* In case a Iu connection is reconnected we need to update the ue ctx */
mm->iu.ue_ctx = msg->dst;
+ if (mm->ran_type == MM_CTX_T_UTRAN_Iu
+ && mm->iu.ue_ctx)
+ mm->iu.ue_ctx->rab_assign_addr_enc =
+ sgsn->cfg.iu.rab_assign_addr_enc;
}
/* Store BVCI/NSEI in MM context */
@@ -978,7 +982,7 @@
if (ctx->ran_type != MM_CTX_T_UTRAN_Iu)
return;
llist_for_each_entry(pdp, &ctx->pdp_list, list) {
- iu_rab_act_ps(pdp->nsapi, pdp, 1);
+ iu_rab_act_ps(pdp->nsapi, pdp);
}
}
#endif
@@ -2897,14 +2901,16 @@
}
#ifdef BUILD_IU
-int iu_rab_act_ps(uint8_t rab_id, struct sgsn_pdp_ctx *pdp, bool use_x213_nsap)
+int iu_rab_act_ps(uint8_t rab_id, struct sgsn_pdp_ctx *pdp)
{
struct msgb *msg;
struct sgsn_mm_ctx *mm = pdp->mm;
struct ue_conn_ctx *uectx;
uint32_t ggsn_ip;
+ bool use_x213_nsap;
uectx = mm->iu.ue_ctx;
+ use_x213_nsap = (uectx->rab_assign_addr_enc == NSAP_ADDR_ENC_X213);
/* Get the IP address for ggsn user plane */
memcpy(&ggsn_ip, pdp->lib->gsnru.v, pdp->lib->gsnru.l);
diff --git a/src/gprs/gprs_sgsn.c b/src/gprs/gprs_sgsn.c
index 071dd97..18625ae 100644
--- a/src/gprs/gprs_sgsn.c
+++ b/src/gprs/gprs_sgsn.c
@@ -247,6 +247,7 @@
ctx->ran_type = MM_CTX_T_UTRAN_Iu;
ctx->iu.ue_ctx = uectx;
+ ctx->iu.ue_ctx->rab_assign_addr_enc = sgsn->cfg.iu.rab_assign_addr_enc;
ctx->iu.new_key = 1;
ctx->gmm_state = GMM_DEREGISTERED;
ctx->pmm_state = PMM_DETACHED;
diff --git a/src/gprs/sgsn_libgtp.c b/src/gprs/sgsn_libgtp.c
index cd10931..7595bf8 100644
--- a/src/gprs/sgsn_libgtp.c
+++ b/src/gprs/sgsn_libgtp.c
@@ -407,7 +407,7 @@
} else if (pctx->mm->ran_type == MM_CTX_T_UTRAN_Iu) {
#ifdef BUILD_IU
/* Activate a radio bearer */
- iu_rab_act_ps(pdp->nsapi, pctx, 1);
+ iu_rab_act_ps(pdp->nsapi, pctx);
return 0;
#else
return -ENOTSUP;
diff --git a/src/gprs/sgsn_main.c b/src/gprs/sgsn_main.c
index d871939..71cb18c 100644
--- a/src/gprs/sgsn_main.c
+++ b/src/gprs/sgsn_main.c
@@ -319,12 +319,6 @@
.num_cat = ARRAY_SIZE(gprs_categories),
};
-/* Implement the extern asn_debug from libasn1c to indicate whether the ASN.1
- * binary code decoded and encoded during Iu communication should be logged to
- * stderr. See osmocom's libasn1c, asn_internal.h, at "if (asn_debug)":
- * http://git.osmocom.org/libasn1c/tree/include/asn1c/asn_internal.h */
-int asn_debug = 0;
-
int sgsn_ranap_iu_event(struct ue_conn_ctx *ctx, enum iu_event_type type, void *data);
int main(int argc, char **argv)
@@ -352,9 +346,6 @@
osmo_stats_vty_add_cmds(&gprs_log_info);
sgsn_vty_init(&sgsn_inst.cfg);
ctrl_vty_init(tall_bsc_ctx);
-#ifdef BUILD_IU
- iu_vty_init(&asn_debug);
-#endif
handle_options(argc, argv);
diff --git a/src/gprs/sgsn_vty.c b/src/gprs/sgsn_vty.c
index 1cefe37..888f53a 100644
--- a/src/gprs/sgsn_vty.c
+++ b/src/gprs/sgsn_vty.c
@@ -44,6 +44,12 @@
#include <pdp.h>
+#include "../../bscconfig.h"
+
+#ifdef BUILD_IU
+#include <openbsc/iu.h>
+#endif
+
static struct sgsn_config *g_cfg = NULL;
const struct value_string sgsn_auth_pol_strs[] = {
@@ -297,6 +303,10 @@
} else
vty_out(vty, " no compression v42bis%s", VTY_NEWLINE);
+#ifdef BUILD_IU
+ iu_vty_config_write(vty, " ");
+#endif
+
return CMD_SUCCESS;
}
@@ -1284,6 +1294,10 @@
install_element(SGSN_NODE, &cfg_no_comp_v42bis_cmd);
install_element(SGSN_NODE, &cfg_comp_v42bis_cmd);
install_element(SGSN_NODE, &cfg_comp_v42bisp_cmd);
+
+#ifdef BUILD_IU
+ iu_vty_init(SGSN_NODE, &g_cfg->iu.rab_assign_addr_enc);
+#endif
return 0;
}
diff --git a/src/libbsc/bsc_init.c b/src/libbsc/bsc_init.c
index e12b880..64dcd15 100644
--- a/src/libbsc/bsc_init.c
+++ b/src/libbsc/bsc_init.c
@@ -516,12 +516,6 @@
bsc_gsmnet->name_long = talloc_strdup(bsc_gsmnet, "OpenBSC");
bsc_gsmnet->name_short = talloc_strdup(bsc_gsmnet, "OpenBSC");
- /* TODO: move to libmsc when gsm_network is split between libbsc and
- * libmsc */
- bsc_gsmnet->gsup_server_addr_str = talloc_strdup(bsc_gsmnet,
- MSC_HLR_REMOTE_IP_DEFAULT);
- bsc_gsmnet->gsup_server_port = MSC_HLR_REMOTE_PORT_DEFAULT;
-
return 0;
}
diff --git a/src/libbsc/paging.c b/src/libbsc/paging.c
index 8c1445c..e19c2d1 100644
--- a/src/libbsc/paging.c
+++ b/src/libbsc/paging.c
@@ -57,6 +57,12 @@
#define PAGING_TIMER 0, 500000
/*
+ * TODO MSCSPLIT: the paging in libbsc is closely tied to MSC land in that the
+ * MSC realm callback functions used to be invoked from the BSC/BTS level. So
+ * this entire file needs to be rewired for use with an A interface.
+ */
+
+/*
* Kill one paging request update the internal list...
*/
static void paging_remove_request(struct gsm_bts_paging_state *paging_bts,
diff --git a/src/libcommon/debug.c b/src/libcommon/debug.c
index dc79a84..7dbbc6a 100644
--- a/src/libcommon/debug.c
+++ b/src/libcommon/debug.c
@@ -184,6 +184,11 @@
.description = "Visitor Location Register",
.enabled = 1, .loglevel = LOGL_DEBUG,
},
+ [DIUCS] = {
+ .name = "DIUCS",
+ .description = "Iu-CS Protocol",
+ .enabled = 1, .loglevel = LOGL_DEBUG,
+ },
};
static int filter_fn(const struct log_context *ctx, struct log_target *tar)
diff --git a/src/libcommon/gsm_data.c b/src/libcommon/gsm_data.c
index f6fde37..b5bf059 100644
--- a/src/libcommon/gsm_data.c
+++ b/src/libcommon/gsm_data.c
@@ -449,3 +449,10 @@
rev_lev = (cm->classmark2[0] >> 5) & 0x3;
return rev_lev >= 2;
}
+
+const struct value_string ran_type_names[] = {
+ OSMO_VALUE_STRING(RAN_UNKNOWN),
+ OSMO_VALUE_STRING(RAN_GERAN_A),
+ OSMO_VALUE_STRING(RAN_UTRAN_IU),
+ { 0, NULL }
+};
diff --git a/src/libiu/iu.c b/src/libiu/iu.c
index 932b217..5d56a4a 100644
--- a/src/libiu/iu.c
+++ b/src/libiu/iu.c
@@ -80,7 +80,15 @@
void *talloc_iu_ctx;
-int asn1_xer_print = 1;
+/* Implement the extern asn_debug from libasn1c to indicate whether to print
+ * asn.1 debug messages (see libasn1c). */
+int asn_debug = 0;
+
+/* Implement the extern asn1_xer_print to indicate whether the ASN.1 binary
+ * code decoded and encoded during Iu communication should be logged to stderr
+ * (see asn.1 generated code in osmo-iuh). */
+int asn1_xer_print = 0;
+
void *talloc_asn1_ctx;
iu_recv_cb_t global_iu_recv_cb = NULL;
@@ -241,6 +249,25 @@
return 0;
}
+int iu_tx_common_id(struct ue_conn_ctx *uectx, const char *imsi)
+{
+ struct msgb *msg;
+ struct osmo_scu_prim *prim;
+
+ LOGP(DRANAP, LOGL_INFO, "Transmitting RANAP CommonID (SUA link %p conn_id %u)\n",
+ uectx->link, uectx->conn_id);
+
+ msg = ranap_new_msg_common_id(imsi);
+ msg->l2h = msg->data;
+ prim = (struct osmo_scu_prim *) msgb_push(msg, sizeof(*prim));
+ prim->u.data.conn_id = uectx->conn_id;
+ osmo_prim_init(&prim->oph, SCCP_SAP_USER,
+ OSMO_SCU_PRIM_N_DATA,
+ PRIM_OP_REQUEST, msg);
+ osmo_sua_user_link_down(uectx->link, &prim->oph);
+ return 0;
+}
+
static int iu_grnc_id_parse(struct iu_grnc_id *dst,
struct RANAP_GlobalRNC_ID *src)
{
@@ -375,20 +402,35 @@
return 0;
}
-static int ranap_handle_co_iu_rel_req(struct ue_conn_ctx *ctx, RANAP_Iu_ReleaseRequestIEs_t *ies)
+/* Send Iu Release for the given UE connection.
+ * If cause is NULL, the standard "No remaining RAB" cause is sent, otherwise
+ * the provided cause. */
+int iu_tx_release(struct ue_conn_ctx *ctx, const struct RANAP_Cause *cause)
{
struct msgb *msg;
struct osmo_scu_prim *prim;
+ static const struct RANAP_Cause default_cause = {
+ .present = RANAP_Cause_PR_radioNetwork,
+ .choice.radioNetwork = RANAP_CauseRadioNetwork_no_remaining_rab,
+ };
- LOGP(DRANAP, LOGL_INFO, "Received Iu Release Request, Sending Release Command\n");
- msg = ranap_new_msg_iu_rel_cmd(&ies->cause);
+ if (!cause)
+ cause = &default_cause;
+
+ msg = ranap_new_msg_iu_rel_cmd(cause);
msg->l2h = msg->data;
prim = (struct osmo_scu_prim *) msgb_push(msg, sizeof(*prim));
prim->u.data.conn_id = ctx->conn_id;
osmo_prim_init(&prim->oph, SCCP_SAP_USER,
OSMO_SCU_PRIM_N_DATA,
PRIM_OP_REQUEST, msg);
- osmo_sua_user_link_down(ctx->link, &prim->oph);
+ return osmo_sua_user_link_down(ctx->link, &prim->oph);
+}
+
+static int ranap_handle_co_iu_rel_req(struct ue_conn_ctx *ctx, RANAP_Iu_ReleaseRequestIEs_t *ies)
+{
+ LOGP(DRANAP, LOGL_INFO, "Received Iu Release Request, Sending Release Command\n");
+ iu_tx_release(ctx, &ies->cause);
return 0;
}
@@ -413,6 +455,7 @@
ranap_free_rab_setupormodifieditemies(&setup_ies);
}
+ /* FIXME: handle RAB Ass failure? */
return rc;
}
diff --git a/src/libiu/iu_vty.c b/src/libiu/iu_vty.c
index 91eed96..73ad126 100644
--- a/src/libiu/iu_vty.c
+++ b/src/libiu/iu_vty.c
@@ -18,33 +18,91 @@
*/
#include <stdlib.h>
+#include <string.h>
+#include <osmocom/core/logging.h>
#include <osmocom/vty/command.h>
#include <osmocom/vty/logging.h>
-/* Pointer to the actual asn_debug value as passed from main scopes. */
-static int *g_asn_debug_p = NULL;
+#include <openbsc/iu.h>
+
+static enum nsap_addr_enc *g_rab_assign_addr_enc = NULL;
DEFUN(logging_asn_debug,
logging_asn_debug_cmd,
"logging asn1-debug (1|0)",
LOGGING_STR
+ "Log ASN.1 debug messages to stderr\n"
+ "Log ASN.1 debug messages to stderr\n"
+ "Do not log ASN.1 debug messages to stderr\n")
+{
+ asn_debug = atoi(argv[0]);
+ return CMD_SUCCESS;
+}
+
+DEFUN(logging_asn_xer_print,
+ logging_asn_xer_print_cmd,
+ "logging asn1-xer-print (1|0)",
+ LOGGING_STR
"Log human readable representations of all ASN.1 messages to stderr\n"
"Log decoded ASN.1 messages to stderr\n"
"Do not log decoded ASN.1 messages to stderr\n")
{
- if (!g_asn_debug_p) {
- vty_out(vty, "%%ASN.1 debugging not available%s", VTY_NEWLINE);
- return CMD_WARNING;
- }
-
- *g_asn_debug_p = atoi(argv[0]);
+ asn1_xer_print = atoi(argv[0]);
return CMD_SUCCESS;
}
-void iu_vty_init(int *asn_debug_p)
+DEFUN(cfg_iu_rab_assign_addr_enc, cfg_iu_rab_assign_addr_enc_cmd,
+ "iu rab-assign-addr-enc (x213|v4raw)",
+ "Iu interface protocol options\n"
+ "Choose RAB Assignment's Transport Layer Address encoding\n"
+ "ITU-T X.213 compliant address encoding (default)\n"
+ "32bit length raw IPv4 address (for ip.access nano3G)\n")
{
- g_asn_debug_p = asn_debug_p;
+ if (!g_rab_assign_addr_enc) {
+ vty_out(vty, "%%RAB Assignment Transport Layer Address"
+ " encoding not available%s", VTY_NEWLINE);
+ return CMD_WARNING;
+ }
+
+ if (strcmp(argv[0], "v4raw") == 0)
+ *g_rab_assign_addr_enc = NSAP_ADDR_ENC_V4RAW;
+ else
+ *g_rab_assign_addr_enc = NSAP_ADDR_ENC_X213;
+ return CMD_SUCCESS;
+}
+
+int iu_vty_config_write(struct vty *vty, const char *indent)
+{
+ if (!g_rab_assign_addr_enc) {
+ vty_out(vty, "%%RAB Assignment Transport Layer Address"
+ " encoding not available%s", VTY_NEWLINE);
+ return CMD_WARNING;
+ }
+
+ switch (*g_rab_assign_addr_enc) {
+ case NSAP_ADDR_ENC_V4RAW:
+ vty_out(vty, "%siu rab-assign-addr-enc v4raw%s", indent,
+ VTY_NEWLINE);
+ break;
+ case NSAP_ADDR_ENC_X213:
+ /* default value, no need to write anything */
+ break;
+ default:
+ LOGP(0, LOGL_ERROR, "Invalid value for"
+ " net.iu.rab_assign_addr_enc: %d\n",
+ *g_rab_assign_addr_enc);
+ return CMD_WARNING;
+ }
+
+ return CMD_SUCCESS;
+}
+
+void iu_vty_init(int iu_parent_node, enum nsap_addr_enc *rab_assign_addr_enc)
+{
+ g_rab_assign_addr_enc = rab_assign_addr_enc;
install_element(CFG_LOG_NODE, &logging_asn_debug_cmd);
+ install_element(CFG_LOG_NODE, &logging_asn_xer_print_cmd);
+ install_element(iu_parent_node, &cfg_iu_rab_assign_addr_enc_cmd);
}
diff --git a/src/libmgcp/Makefile.am b/src/libmgcp/Makefile.am
index 5faf602..5d7844d 100644
--- a/src/libmgcp/Makefile.am
+++ b/src/libmgcp/Makefile.am
@@ -30,11 +30,14 @@
$(NULL)
libmgcp_a_SOURCES = \
+ mgcp_common.c \
mgcp_protocol.c \
mgcp_network.c \
mgcp_vty.c \
mgcp_osmux.c \
mgcp_sdp.c \
+ mgcpgw_client.c \
+ mgcpgw_client_vty.c \
$(NULL)
if BUILD_MGCP_TRANSCODING
libmgcp_a_SOURCES += \
diff --git a/src/libmgcp/mgcp_common.c b/src/libmgcp/mgcp_common.c
new file mode 100644
index 0000000..43c8667
--- /dev/null
+++ b/src/libmgcp/mgcp_common.c
@@ -0,0 +1,54 @@
+/* Media Gateway Control Protocol Media Gateway: RFC 3435 */
+/* Implementations useful both for the MGCP GW as well as MGCP GW clients */
+
+/*
+ * (C) 2016 by sysmocom s.m.f.c. GmbH <info@sysmocom.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 <errno.h>
+
+#include <osmocom/core/utils.h>
+#include <openbsc/mgcp.h>
+
+const struct value_string mgcp_connection_mode_strs[] = {
+ { MGCP_CONN_NONE, "none" },
+ { MGCP_CONN_RECV_SEND, "sendrecv" },
+ { MGCP_CONN_SEND_ONLY, "sendonly" },
+ { MGCP_CONN_RECV_ONLY, "recvonly" },
+ { MGCP_CONN_LOOPBACK, "loopback" },
+ { 0, NULL }
+};
+
+/* Ensure that the msg->l2h is NUL terminated. */
+int mgcp_msg_terminate_nul(struct msgb *msg)
+{
+ unsigned char *tail = msg->l2h + msgb_l2len(msg); /* char after l2 data */
+ if (tail[-1] == '\0')
+ /* nothing to do */;
+ else if (msgb_tailroom(msg) > 0)
+ tail[0] = '\0';
+ else if (tail[-1] == '\r' || tail[-1] == '\n')
+ tail[-1] = '\0';
+ else {
+ LOGP(DMGCP, LOGL_ERROR, "Cannot NUL terminate MGCP message: "
+ "Length: %d, Buffer size: %d\n",
+ msgb_l2len(msg), msg->data_len);
+ return -ENOTSUP;
+ }
+ return 0;
+}
diff --git a/src/libmgcp/mgcp_network.c b/src/libmgcp/mgcp_network.c
index abce6e4..c9fe179 100644
--- a/src/libmgcp/mgcp_network.c
+++ b/src/libmgcp/mgcp_network.c
@@ -537,7 +537,11 @@
if (payload < 0)
return;
+#if 0
+ DEBUGP(DMGCP, "Payload hdr payload %u -> endp payload %u\n",
+ rtp_hdr->payload_type, payload);
rtp_hdr->payload_type = payload;
+#endif
}
/*
@@ -588,6 +592,14 @@
struct mgcp_rtp_state *rtp_state;
int tap_idx;
+ LOGP(DMGCP, LOGL_DEBUG,
+ "endpoint %x dest %s tcfg->audio_loop %d endp->conn_mode %d (== loopback: %d)\n",
+ ENDPOINT_NUMBER(endp),
+ dest == MGCP_DEST_NET? "net" : "bts",
+ tcfg->audio_loop,
+ endp->conn_mode,
+ endp->conn_mode == MGCP_CONN_LOOPBACK);
+
/* For loop toggle the destination and then dispatch. */
if (tcfg->audio_loop)
dest = !dest;
@@ -605,10 +617,35 @@
rtp_state = &endp->net_state;
tap_idx = MGCP_TAP_BTS_OUT;
}
+ LOGP(DMGCP, LOGL_DEBUG,
+ "endpoint %x dest %s net_end %s %d %d bts_end %s %d %d rtp_end %s %d %d\n",
+ ENDPOINT_NUMBER(endp),
+ dest == MGCP_DEST_NET? "net" : "bts",
- if (!rtp_end->output_enabled)
+ inet_ntoa(endp->net_end.addr),
+ ntohs(endp->net_end.rtp_port),
+ ntohs(endp->net_end.rtcp_port),
+
+ inet_ntoa(endp->bts_end.addr),
+ ntohs(endp->bts_end.rtp_port),
+ ntohs(endp->bts_end.rtcp_port),
+
+ inet_ntoa(rtp_end->addr),
+ ntohs(rtp_end->rtp_port),
+ ntohs(rtp_end->rtcp_port)
+ );
+
+ if (!rtp_end->output_enabled) {
rtp_end->dropped_packets += 1;
- else if (is_rtp) {
+ LOGP(DMGCP, LOGL_DEBUG,
+ "endpoint %x output disabled, drop to %s %s %d %d\n",
+ ENDPOINT_NUMBER(endp),
+ dest == MGCP_DEST_NET? "net" : "bts",
+ inet_ntoa(rtp_end->addr),
+ ntohs(rtp_end->rtp_port),
+ ntohs(rtp_end->rtcp_port)
+ );
+ } else if (is_rtp) {
int cont;
int nbytes = 0;
int len = rc;
@@ -619,8 +656,17 @@
break;
mgcp_patch_and_count(endp, rtp_state, rtp_end, addr, buf, len);
+ LOGP(DMGCP, LOGL_DEBUG,
+ "endpoint %x process/send to %s %s %d %d\n",
+ ENDPOINT_NUMBER(endp),
+ (dest == MGCP_DEST_NET)? "net" : "bts",
+ inet_ntoa(rtp_end->addr),
+ ntohs(rtp_end->rtp_port),
+ ntohs(rtp_end->rtcp_port)
+ );
forward_data(rtp_end->rtp.fd, &endp->taps[tap_idx],
buf, len);
+
rc = mgcp_udp_send(rtp_end->rtp.fd,
&rtp_end->addr,
rtp_end->rtp_port, buf, len);
@@ -632,6 +678,15 @@
} while (len > 0);
return nbytes;
} else if (!tcfg->omit_rtcp) {
+ LOGP(DMGCP, LOGL_DEBUG,
+ "endpoint %x send to %s %s %d %d\n",
+ ENDPOINT_NUMBER(endp),
+ dest == MGCP_DEST_NET? "net" : "bts",
+ inet_ntoa(rtp_end->addr),
+ ntohs(rtp_end->rtp_port),
+ ntohs(rtp_end->rtcp_port)
+ );
+
return mgcp_udp_send(rtp_end->rtcp.fd,
&rtp_end->addr,
rtp_end->rtcp_port, buf, rc);
@@ -676,9 +731,28 @@
if (rc <= 0)
return -1;
+ LOGP(DMGCP, LOGL_DEBUG,
+ "endpoint %x",
+ ENDPOINT_NUMBER(endp));
+ LOGPC(DMGCP, LOGL_DEBUG,
+ " from net %s %d",
+ inet_ntoa(addr.sin_addr),
+ ntohs(addr.sin_port));
+ LOGPC(DMGCP, LOGL_DEBUG,
+ " net_end %s %d %d",
+ inet_ntoa(endp->net_end.addr),
+ ntohs(endp->net_end.rtp_port),
+ ntohs(endp->net_end.rtcp_port));
+ LOGPC(DMGCP, LOGL_DEBUG,
+ " bts_end %s %d %d\n",
+ inet_ntoa(endp->bts_end.addr),
+ ntohs(endp->bts_end.rtp_port),
+ ntohs(endp->bts_end.rtcp_port)
+ );
+
if (memcmp(&addr.sin_addr, &endp->net_end.addr, sizeof(addr.sin_addr)) != 0) {
LOGP(DMGCP, LOGL_ERROR,
- "Endpoint 0x%x data from wrong address %s vs. ",
+ "rtp_data_net: Endpoint 0x%x data from wrong address %s vs. ",
ENDPOINT_NUMBER(endp), inet_ntoa(addr.sin_addr));
LOGPC(DMGCP, LOGL_ERROR,
"%s\n", inet_ntoa(endp->net_end.addr));
@@ -691,7 +765,7 @@
if (endp->net_end.rtp_port != addr.sin_port &&
endp->net_end.rtcp_port != addr.sin_port) {
LOGP(DMGCP, LOGL_ERROR,
- "Data from wrong source port %d on 0x%x\n",
+ "rtp_data_net: Data from wrong source port %d on 0x%x\n",
ntohs(addr.sin_port), ENDPOINT_NUMBER(endp));
return -1;
}
@@ -701,6 +775,12 @@
break;
}
+ LOGP(DMGCP, LOGL_DEBUG,
+ "rtp_data_net: Endpoint %x data from %s %d\n",
+ ENDPOINT_NUMBER(endp),
+ inet_ntoa(addr.sin_addr),
+ ntohs(addr.sin_port));
+
/* throw away the dummy message */
if (rc == 1 && buf[0] == MGCP_DUMMY_LOAD) {
LOGP(DMGCP, LOGL_NOTICE, "Filtered dummy from network on 0x%x\n",
@@ -780,7 +860,7 @@
if (memcmp(&endp->bts_end.addr, &addr.sin_addr, sizeof(addr.sin_addr)) != 0) {
LOGP(DMGCP, LOGL_ERROR,
- "Data from wrong bts %s on 0x%x\n",
+ "rtp_data_bts: Data from wrong bts %s on 0x%x\n",
inet_ntoa(addr.sin_addr), ENDPOINT_NUMBER(endp));
return -1;
}
@@ -788,11 +868,17 @@
if (endp->bts_end.rtp_port != addr.sin_port &&
endp->bts_end.rtcp_port != addr.sin_port) {
LOGP(DMGCP, LOGL_ERROR,
- "Data from wrong bts source port %d on 0x%x\n",
+ "rtp_data_bts: ata from wrong bts source port %d on 0x%x\n",
ntohs(addr.sin_port), ENDPOINT_NUMBER(endp));
return -1;
}
+ LOGP(DMGCP, LOGL_DEBUG,
+ "rtp_data_bts: Endpoint %x data from %s %d\n",
+ ENDPOINT_NUMBER(endp),
+ inet_ntoa(addr.sin_addr),
+ ntohs(addr.sin_port));
+
/* throw away the dummy message */
if (rc == 1 && buf[0] == MGCP_DUMMY_LOAD) {
LOGP(DMGCP, LOGL_NOTICE, "Filtered dummy from bts on 0x%x\n",
@@ -808,6 +894,9 @@
switch (endp->type) {
case MGCP_RTP_DEFAULT:
+ LOGP(DMGCP, LOGL_DEBUG,
+ "rtp_data_bts: Endpoint %x MGCP_RTP_DEFAULT\n",
+ ENDPOINT_NUMBER(endp));
return mgcp_send(endp, MGCP_DEST_NET, proto == MGCP_PROTO_RTP,
&addr, buf, rc);
case MGCP_RTP_TRANSCODED:
diff --git a/src/libmgcp/mgcp_protocol.c b/src/libmgcp/mgcp_protocol.c
index 4fcadd9..78e41f1 100644
--- a/src/libmgcp/mgcp_protocol.c
+++ b/src/libmgcp/mgcp_protocol.c
@@ -318,26 +318,14 @@
int i, code, handled = 0;
struct msgb *resp = NULL;
char *data;
- unsigned char *tail = msg->l2h + msgb_l2len(msg); /* char after l2 data */
if (msgb_l2len(msg) < 4) {
LOGP(DMGCP, LOGL_ERROR, "msg too short: %d\n", msg->len);
return NULL;
}
- /* Ensure that the msg->l2h is NUL terminated. */
- if (tail[-1] == '\0')
- /* nothing to do */;
- else if (msgb_tailroom(msg) > 0)
- tail[0] = '\0';
- else if (tail[-1] == '\r' || tail[-1] == '\n')
- tail[-1] = '\0';
- else {
- LOGP(DMGCP, LOGL_ERROR, "Cannot NUL terminate MGCP message: "
- "Length: %d, Buffer size: %d\n",
- msgb_l2len(msg), msg->data_len);
+ if (mgcp_msg_terminate_nul(msg))
return NULL;
- }
/* attempt to treat it as a response */
if (sscanf((const char *)&msg->l2h[0], "%3d %*s", &code) == 1) {
@@ -547,6 +535,11 @@
endp->bts_end.output_enabled =
endp->conn_mode & MGCP_CONN_RECV_ONLY ? 1 : 0;
+ LOGP(DMGCP, LOGL_DEBUG, "endpoint %x connection mode '%s' %d output_enabled net %d bts %d\n",
+ ENDPOINT_NUMBER(endp),
+ msg, endp->conn_mode, endp->net_end.output_enabled,
+ endp->bts_end.output_enabled);
+
return ret;
}
@@ -972,6 +965,8 @@
break;
case MGCP_POLICY_DEFER:
/* stop processing */
+ LOGP(DMGCP, LOGL_DEBUG, "endp %x MDCX defer\n",
+ ENDPOINT_NUMBER(endp));
return NULL;
break;
case MGCP_POLICY_CONT:
@@ -1003,6 +998,8 @@
out_silent:
+ LOGP(DMGCP, LOGL_DEBUG, "endp %x Modify endpoint: silent exit\n",
+ ENDPOINT_NUMBER(endp));
return NULL;
}
diff --git a/src/libmgcp/mgcpgw_client.c b/src/libmgcp/mgcpgw_client.c
new file mode 100644
index 0000000..9f0c84d
--- /dev/null
+++ b/src/libmgcp/mgcpgw_client.c
@@ -0,0 +1,549 @@
+/* mgcp_utils - common functions to setup an MGCP connection
+ */
+/* (C) 2016 by sysmocom s.f.m.c. GmbH <info@sysmocom.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 <osmocom/core/select.h>
+#include <osmocom/core/write_queue.h>
+#include <osmocom/core/msgb.h>
+#include <osmocom/core/logging.h>
+
+#include <openbsc/mgcpgw_client.h>
+#include <openbsc/mgcp.h>
+#include <openbsc/mgcp_internal.h>
+#include <openbsc/debug.h>
+
+#include <netinet/in.h>
+#include <arpa/inet.h>
+
+#include <errno.h>
+#include <unistd.h>
+#include <string.h>
+
+struct mgcpgw_client {
+ struct mgcpgw_client_conf actual;
+ uint32_t remote_addr;
+ struct osmo_wqueue wq;
+ mgcp_trans_id_t next_trans_id;
+ uint16_t next_endpoint;
+ struct llist_head responses_pending;
+};
+
+void mgcpgw_client_conf_init(struct mgcpgw_client_conf *conf)
+{
+ /* NULL and -1 default to MGCPGW_CLIENT_*_DEFAULT values */
+ *conf = (struct mgcpgw_client_conf){
+ .local_addr = NULL,
+ .local_port = -1,
+ .remote_addr = NULL,
+ .remote_port = -1,
+ };
+}
+
+unsigned int mgcpgw_client_next_endpoint(struct mgcpgw_client *client)
+{
+ return client->next_endpoint ++;
+}
+
+static void mgcpgw_client_handle_response(struct mgcpgw_client *mgcp,
+ struct mgcp_response_pending *pending,
+ struct mgcp_response *response)
+{
+ if (!pending) {
+ LOGP(DMGCP, LOGL_ERROR,
+ "Cannot handle NULL response\n");
+ return;
+ }
+ if (pending->response_cb)
+ pending->response_cb(response, pending->priv);
+ else
+ LOGP(DMGCP, LOGL_INFO, "MGCP response ignored (NULL cb)\n");
+ talloc_free(pending);
+}
+
+static int mgcp_response_parse_head(struct mgcp_response *r, struct msgb *msg)
+{
+ int comment_pos;
+ char *end;
+
+ if (mgcp_msg_terminate_nul(msg))
+ goto response_parse_failure;
+
+ r->body = (char *)msg->data;
+
+ if (sscanf(r->body, "%3d %u %n",
+ &r->head.response_code, &r->head.trans_id,
+ &comment_pos) != 2)
+ goto response_parse_failure;
+
+ r->head.comment = r->body + comment_pos;
+ end = strchr(r->head.comment, '\r');
+ if (!end)
+ goto response_parse_failure;
+ /* Mark the end of the comment */
+ *end = '\0';
+ r->body = end + 1;
+ if (r->body[0] == '\n')
+ r->body ++;
+ return 0;
+
+response_parse_failure:
+ LOGP(DMGCP, LOGL_ERROR,
+ "Failed to parse MGCP response header\n");
+ return -EINVAL;
+}
+
+/* TODO undup against mgcp_protocol.c:mgcp_check_param() */
+static bool mgcp_line_is_valid(const char *line)
+{
+ const size_t line_len = strlen(line);
+ if (line[0] == '\0')
+ return true;
+
+ if (line_len < 2
+ || line[1] != '=') {
+ LOGP(DMGCP, LOGL_ERROR,
+ "Wrong MGCP option format: '%s'\n",
+ line);
+ return false;
+ }
+
+ return true;
+}
+
+/* Parse a line like "m=audio 16002 RTP/AVP 98" */
+static int mgcp_parse_audio(struct mgcp_response *r, const char *line)
+{
+ if (sscanf(line, "m=audio %hu",
+ &r->audio_port) != 1)
+ goto response_parse_failure;
+
+ return 0;
+
+response_parse_failure:
+ LOGP(DMGCP, LOGL_ERROR,
+ "Failed to parse MGCP response header\n");
+ return -EINVAL;
+}
+
+int mgcp_response_parse_params(struct mgcp_response *r)
+{
+ char *line;
+ int rc;
+ OSMO_ASSERT(r->body);
+ char *data = strstr(r->body, "\n\n");
+
+ if (!data) {
+ LOGP(DMGCP, LOGL_ERROR,
+ "MGCP response: cannot find start of parameters\n");
+ return -EINVAL;
+ }
+
+ /* Advance to after the \n\n, replace the second \n with \0. That's
+ * where the parameters start. */
+ data ++;
+ *data = '\0';
+ data ++;
+
+ for_each_line(line, data) {
+ if (!mgcp_line_is_valid(line))
+ return -EINVAL;
+
+ switch (line[0]) {
+ case 'm':
+ rc = mgcp_parse_audio(r, line);
+ if (rc)
+ return rc;
+ break;
+ default:
+ /* skip unhandled parameters */
+ break;
+ }
+ }
+ return 0;
+}
+
+static struct mgcp_response_pending *mgcpgw_client_response_pending_get(
+ struct mgcpgw_client *mgcp,
+ struct mgcp_response *r)
+{
+ struct mgcp_response_pending *pending;
+ if (!r)
+ return NULL;
+ llist_for_each_entry(pending, &mgcp->responses_pending, entry) {
+ if (pending->trans_id == r->head.trans_id) {
+ llist_del(&pending->entry);
+ return pending;
+ }
+ }
+ return NULL;
+}
+
+/* Feed an MGCP message into the receive processing.
+ * Parse the head and call any callback registered for the transaction id found
+ * in the MGCP message. This is normally called directly from the internal
+ * mgcp_do_read that reads from the socket connected to the MGCP gateway. This
+ * function is published mainly to be able to feed data from the test suite.
+ */
+int mgcpgw_client_rx(struct mgcpgw_client *mgcp, struct msgb *msg)
+{
+ struct mgcp_response r = { 0 };
+ struct mgcp_response_pending *pending;
+ int rc;
+
+ rc = mgcp_response_parse_head(&r, msg);
+ if (rc) {
+ LOGP(DMGCP, LOGL_ERROR, "Cannot parse MGCP response\n");
+ return -1;
+ }
+
+ pending = mgcpgw_client_response_pending_get(mgcp, &r);
+ if (!pending) {
+ LOGP(DMGCP, LOGL_ERROR,
+ "Cannot find matching MGCP transaction for trans_id %d\n",
+ r.head.trans_id);
+ return -1;
+ }
+
+ mgcpgw_client_handle_response(mgcp, pending, &r);
+ return 0;
+}
+
+static int mgcp_do_read(struct osmo_fd *fd)
+{
+ struct mgcpgw_client *mgcp = fd->data;
+ struct msgb *msg;
+ int ret;
+
+ msg = msgb_alloc_headroom(4096, 128, "mgcp_from_gw");
+ if (!msg) {
+ LOGP(DMGCP, LOGL_ERROR, "Failed to allocate MGCP message.\n");
+ return -1;
+ }
+
+ ret = read(fd->fd, msg->data, 4096 - 128);
+ if (ret <= 0) {
+ LOGP(DMGCP, LOGL_ERROR, "Failed to read: %d/%s\n", errno, strerror(errno));
+ msgb_free(msg);
+ return -1;
+ } else if (ret > 4096 - 128) {
+ LOGP(DMGCP, LOGL_ERROR, "Too much data: %d\n", ret);
+ msgb_free(msg);
+ return -1;
+ }
+
+ msg->l2h = msgb_put(msg, ret);
+ ret = mgcpgw_client_rx(mgcp, msg);
+ talloc_free(msg);
+ return ret;
+}
+
+static int mgcp_do_write(struct osmo_fd *fd, struct msgb *msg)
+{
+ int ret;
+ static char strbuf[4096];
+ unsigned int l = msg->len < sizeof(strbuf)-1 ? msg->len : sizeof(strbuf)-1;
+ strncpy(strbuf, (const char*)msg->data, l);
+ strbuf[l] = '\0';
+ DEBUGP(DMGCP, "Tx MGCP msg to MGCP GW: '%s'\n", strbuf);
+
+ LOGP(DMGCP, LOGL_DEBUG, "Sending msg to MGCP GW size: %u\n", msg->len);
+
+ ret = write(fd->fd, msg->data, msg->len);
+ if (ret != msg->len)
+ LOGP(DMGCP, LOGL_ERROR, "Failed to forward message to MGCP"
+ " GW: %s\n", strerror(errno));
+
+ return ret;
+}
+
+struct mgcpgw_client *mgcpgw_client_init(void *ctx,
+ struct mgcpgw_client_conf *conf)
+{
+ struct mgcpgw_client *mgcp;
+
+ mgcp = talloc_zero(ctx, struct mgcpgw_client);
+
+ INIT_LLIST_HEAD(&mgcp->responses_pending);
+
+ mgcp->next_trans_id = 1;
+ mgcp->next_endpoint = 1;
+
+ mgcp->actual.local_addr = conf->local_addr ? conf->local_addr :
+ MGCPGW_CLIENT_LOCAL_ADDR_DEFAULT;
+ mgcp->actual.local_port = conf->local_port >= 0 ? (uint16_t)conf->local_port :
+ MGCPGW_CLIENT_LOCAL_PORT_DEFAULT;
+
+ mgcp->actual.remote_addr = conf->remote_addr ? conf->remote_addr :
+ MGCPGW_CLIENT_REMOTE_ADDR_DEFAULT;
+ mgcp->actual.remote_port = conf->remote_port >= 0 ? (uint16_t)conf->remote_port :
+ MGCPGW_CLIENT_REMOTE_PORT_DEFAULT;
+
+ return mgcp;
+}
+
+int mgcpgw_client_connect(struct mgcpgw_client *mgcp)
+{
+ int on;
+ struct sockaddr_in addr;
+ struct osmo_wqueue *wq;
+ int rc;
+
+ if (!mgcp) {
+ LOGP(DMGCP, LOGL_FATAL, "MGCPGW client not initialized properly\n");
+ return -EINVAL;
+ }
+
+ wq = &mgcp->wq;
+
+ wq->bfd.fd = socket(AF_INET, SOCK_DGRAM, 0);
+ if (wq->bfd.fd < 0) {
+ LOGP(DMGCP, LOGL_FATAL, "Failed to create UDP socket errno: %d\n", errno);
+ return -errno;
+ }
+
+ on = 1;
+ if (setsockopt(wq->bfd.fd, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on)) < 0) {
+ LOGP(DMGCP, LOGL_FATAL,
+ "Failed to initialize socket for MGCP GW: %s\n",
+ strerror(errno));
+ rc = -errno;
+ goto error_close_fd;
+ }
+
+ /* bind socket */
+ memset(&addr, 0, sizeof(addr));
+ addr.sin_family = AF_INET;
+ inet_aton(mgcp->actual.local_addr, &addr.sin_addr);
+ addr.sin_port = htons(mgcp->actual.local_port);
+ if (bind(wq->bfd.fd, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
+ LOGP(DMGCP, LOGL_FATAL,
+ "Failed to bind for MGCP GW to %s %u\n",
+ mgcp->actual.local_addr, mgcp->actual.local_port);
+ rc = -errno;
+ goto error_close_fd;
+ }
+
+ /* connect to the remote */
+ inet_aton(mgcp->actual.remote_addr, &addr.sin_addr);
+ addr.sin_port = htons(mgcp->actual.remote_port);
+ if (connect(wq->bfd.fd, (struct sockaddr *)&addr, sizeof(addr)) < 0) {
+ LOGP(DMGCP, LOGL_FATAL,
+ "Failed to connect to MGCP GW at %s %u: %s\n",
+ mgcp->actual.remote_addr, mgcp->actual.remote_port,
+ strerror(errno));
+ rc = -errno;
+ goto error_close_fd;
+ }
+
+ mgcp->remote_addr = htonl(addr.sin_addr.s_addr);
+
+ osmo_wqueue_init(wq, 10);
+ wq->bfd.when = BSC_FD_READ;
+ wq->bfd.data = mgcp;
+ wq->read_cb = mgcp_do_read;
+ wq->write_cb = mgcp_do_write;
+
+ if (osmo_fd_register(&wq->bfd) != 0) {
+ LOGP(DMGCP, LOGL_FATAL, "Failed to register BFD\n");
+ rc = -EIO;
+ goto error_close_fd;
+ }
+ LOGP(DMGCP, LOGL_INFO, "MGCP GW connection: %s:%u -> %s:%u\n",
+ mgcp->actual.local_addr, mgcp->actual.local_port,
+ mgcp->actual.remote_addr, mgcp->actual.remote_port);
+
+ return 0;
+error_close_fd:
+ close(wq->bfd.fd);
+ wq->bfd.fd = -1;
+ return rc;
+}
+
+const char *mgcpgw_client_remote_addr_str(struct mgcpgw_client *mgcp)
+{
+ return mgcp->actual.remote_addr;
+}
+
+uint16_t mgcpgw_client_remote_port(struct mgcpgw_client *mgcp)
+{
+ return mgcp->actual.remote_port;
+}
+
+/* Return the MGCP GW binary IPv4 address in network byte order. */
+uint32_t mgcpgw_client_remote_addr_n(struct mgcpgw_client *mgcp)
+{
+ return mgcp->remote_addr;
+}
+
+struct mgcp_response_pending * mgcpgw_client_pending_add(
+ struct mgcpgw_client *mgcp,
+ mgcp_trans_id_t trans_id,
+ mgcp_response_cb_t response_cb,
+ void *priv)
+{
+ struct mgcp_response_pending *pending;
+
+ pending = talloc_zero(mgcp, struct mgcp_response_pending);
+ pending->trans_id = trans_id;
+ pending->response_cb = response_cb;
+ pending->priv = priv;
+ llist_add_tail(&pending->entry, &mgcp->responses_pending);
+
+ return pending;
+}
+
+/* Send the MGCP message in msg to the MGCP GW and handle a response with
+ * response_cb. NOTE: the response_cb still needs to call
+ * mgcp_response_parse_params(response) to get the parsed parameters -- to
+ * potentially save some CPU cycles, only the head line has been parsed when
+ * the response_cb is invoked. */
+int mgcpgw_client_tx(struct mgcpgw_client *mgcp, struct msgb *msg,
+ mgcp_response_cb_t response_cb, void *priv)
+{
+ struct mgcp_response_pending *pending;
+ mgcp_trans_id_t trans_id;
+ int rc;
+
+ trans_id = msg->cb[MSGB_CB_MGCP_TRANS_ID];
+ if (!trans_id) {
+ LOGP(DMGCP, LOGL_ERROR,
+ "Unset transaction id in mgcp send request\n");
+ talloc_free(msg);
+ return -EINVAL;
+ }
+
+ pending = mgcpgw_client_pending_add(mgcp, trans_id, response_cb, priv);
+
+ if (msgb_l2len(msg) > 4096) {
+ LOGP(DMGCP, LOGL_ERROR,
+ "Cannot send, MGCP message too large: %u\n",
+ msgb_l2len(msg));
+ msgb_free(msg);
+ rc = -EINVAL;
+ goto mgcp_tx_error;
+ }
+
+ rc = osmo_wqueue_enqueue(&mgcp->wq, msg);
+ if (rc) {
+ LOGP(DMGCP, LOGL_FATAL, "Could not queue message to MGCP GW\n");
+ msgb_free(msg);
+ goto mgcp_tx_error;
+ } else
+ LOGP(DMGCP, LOGL_INFO, "Queued %u bytes for MGCP GW\n",
+ msgb_l2len(msg));
+ return 0;
+
+mgcp_tx_error:
+ /* Pass NULL to response cb to indicate an error */
+ mgcpgw_client_handle_response(mgcp, pending, NULL);
+ return -1;
+}
+
+static struct msgb *mgcp_msg_from_buf(mgcp_trans_id_t trans_id,
+ const char *buf, int len)
+{
+ struct msgb *msg;
+
+ if (len > (4096 - 128)) {
+ LOGP(DMGCP, LOGL_ERROR, "Cannot send to MGCP GW:"
+ " message too large: %d\n", len);
+ return NULL;
+ }
+
+ msg = msgb_alloc_headroom(4096, 128, "MGCP tx");
+ OSMO_ASSERT(msg);
+
+ char *dst = (char*)msgb_put(msg, len);
+ memcpy(dst, buf, len);
+ msg->l2h = msg->data;
+ msg->cb[MSGB_CB_MGCP_TRANS_ID] = trans_id;
+
+ return msg;
+}
+
+static struct msgb *mgcp_msg_from_str(mgcp_trans_id_t trans_id,
+ const char *fmt, ...)
+{
+ static char compose[4096 - 128];
+ va_list ap;
+ int len;
+ OSMO_ASSERT(fmt);
+
+ va_start(ap, fmt);
+ len = vsnprintf(compose, sizeof(compose), fmt, ap);
+ va_end(ap);
+ if (len >= sizeof(compose)) {
+ LOGP(DMGCP, LOGL_ERROR,
+ "Message too large: trans_id=%u len=%d\n",
+ trans_id, len);
+ return NULL;
+ }
+ if (len < 1) {
+ LOGP(DMGCP, LOGL_ERROR,
+ "Failed to compose message: trans_id=%u len=%d\n",
+ trans_id, len);
+ return NULL;
+ }
+ return mgcp_msg_from_buf(trans_id, compose, len);
+}
+
+static mgcp_trans_id_t mgcpgw_client_next_trans_id(struct mgcpgw_client *mgcp)
+{
+ /* avoid zero trans_id to distinguish from unset trans_id */
+ if (!mgcp->next_trans_id)
+ mgcp->next_trans_id ++;
+ return mgcp->next_trans_id ++;
+}
+
+struct msgb *mgcp_msg_crcx(struct mgcpgw_client *mgcp,
+ uint16_t rtp_endpoint, unsigned int call_id,
+ enum mgcp_connection_mode mode)
+{
+ mgcp_trans_id_t trans_id = mgcpgw_client_next_trans_id(mgcp);
+ return mgcp_msg_from_str(trans_id,
+ "CRCX %u %x@mgw MGCP 1.0\r\n"
+ "C: %x\r\n"
+ "L: p:20, a:AMR, nt:IN\r\n"
+ "M: %s\r\n"
+ ,
+ trans_id,
+ rtp_endpoint,
+ call_id,
+ mgcp_cmode_name(mode));
+}
+
+struct msgb *mgcp_msg_mdcx(struct mgcpgw_client *mgcp,
+ uint16_t rtp_endpoint, const char *rtp_conn_addr,
+ uint16_t rtp_port, enum mgcp_connection_mode mode)
+
+{
+ mgcp_trans_id_t trans_id = mgcpgw_client_next_trans_id(mgcp);
+ return mgcp_msg_from_str(trans_id,
+ "MDCX %u %x@mgw MGCP 1.0\r\n"
+ "M: %s\r\n"
+ "\r\n"
+ "c=IN IP4 %s\r\n"
+ "m=audio %u RTP/AVP 255\r\n"
+ ,
+ trans_id,
+ rtp_endpoint,
+ mgcp_cmode_name(mode),
+ rtp_conn_addr,
+ rtp_port);
+}
diff --git a/src/libmgcp/mgcpgw_client_vty.c b/src/libmgcp/mgcpgw_client_vty.c
new file mode 100644
index 0000000..a42ee4e
--- /dev/null
+++ b/src/libmgcp/mgcpgw_client_vty.c
@@ -0,0 +1,116 @@
+/* MGCPGW client interface to quagga VTY */
+/* (C) 2016 by sysmocom s.m.f.c. GmbH <info@sysmocom.de>
+ * Based on OpenBSC interface to quagga VTY (libmsc/vty_interface_layer3.c)
+ * (C) 2009 by Harald Welte <laforge@gnumonks.org>
+ * (C) 2009-2011 by Holger Hans Peter Freyther
+ * 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 <inttypes.h>
+#include <stdlib.h>
+#include <talloc.h>
+
+#include <osmocom/vty/command.h>
+
+#include <openbsc/vty.h>
+#include <openbsc/mgcpgw_client.h>
+
+#define MGCPGW_STR "MGCP gateway configuration for RTP streams\n"
+
+struct mgcpgw_client_conf *global_mgcpgw_client_conf = NULL;
+
+DEFUN(cfg_mgcpgw_local_ip, cfg_mgcpgw_local_ip_cmd,
+ "mgcpgw local-ip A.B.C.D",
+ MGCPGW_STR "local bind to connect to MGCP gateway with\n"
+ "local bind IP address\n")
+{
+ if (!global_mgcpgw_client_conf)
+ return CMD_ERR_NOTHING_TODO;
+ global_mgcpgw_client_conf->local_addr =
+ talloc_strdup(gsmnet_from_vty(vty), argv[0]);
+ return CMD_SUCCESS;
+}
+
+DEFUN(cfg_mgcpgw_local_port, cfg_mgcpgw_local_port_cmd,
+ "mgcpgw local-port <0-65535>",
+ MGCPGW_STR "local bind to connect to MGCP gateway with\n"
+ "local bind port\n")
+{
+ if (!global_mgcpgw_client_conf)
+ return CMD_ERR_NOTHING_TODO;
+ global_mgcpgw_client_conf->local_port = atoi(argv[0]);
+ return CMD_SUCCESS;
+}
+
+DEFUN(cfg_mgcpgw_remote_ip, cfg_mgcpgw_remote_ip_cmd,
+ "mgcpgw remote-ip A.B.C.D",
+ MGCPGW_STR "remote bind to connect to MGCP gateway with\n"
+ "remote bind IP address\n")
+{
+ if (!global_mgcpgw_client_conf)
+ return CMD_ERR_NOTHING_TODO;
+ global_mgcpgw_client_conf->remote_addr =
+ talloc_strdup(gsmnet_from_vty(vty), argv[0]);
+ return CMD_SUCCESS;
+}
+
+DEFUN(cfg_mgcpgw_remote_port, cfg_mgcpgw_remote_port_cmd,
+ "mgcpgw remote-port <0-65535>",
+ MGCPGW_STR "remote bind to connect to MGCP gateway with\n"
+ "remote bind port\n")
+{
+ if (!global_mgcpgw_client_conf)
+ return CMD_ERR_NOTHING_TODO;
+ global_mgcpgw_client_conf->remote_port = atoi(argv[0]);
+ return CMD_SUCCESS;
+}
+
+int mgcpgw_client_config_write(struct vty *vty, const char *indent)
+{
+ const char *addr;
+ int port;
+
+ addr = global_mgcpgw_client_conf->local_addr;
+ if (addr)
+ vty_out(vty, "%smgcpgw local-ip %s%s", indent, addr,
+ VTY_NEWLINE);
+ port = global_mgcpgw_client_conf->local_port;
+ if (port >= 0)
+ vty_out(vty, "%smgcpgw local-port %u%s", indent,
+ (uint16_t)port, VTY_NEWLINE);
+
+ addr = global_mgcpgw_client_conf->remote_addr;
+ if (addr)
+ vty_out(vty, "%smgcpgw remote-ip %s%s", indent, addr,
+ VTY_NEWLINE);
+ port = global_mgcpgw_client_conf->remote_port;
+ if (port >= 0)
+ vty_out(vty, "%smgcpgw remote-port %u%s", indent,
+ (uint16_t)port, VTY_NEWLINE);
+
+ return CMD_SUCCESS;
+}
+
+void mgcpgw_client_vty_init(int node, struct mgcpgw_client_conf *conf)
+{
+ global_mgcpgw_client_conf = conf;
+
+ install_element(node, &cfg_mgcpgw_local_ip_cmd);
+ install_element(node, &cfg_mgcpgw_local_port_cmd);
+ install_element(node, &cfg_mgcpgw_remote_ip_cmd);
+ install_element(node, &cfg_mgcpgw_remote_port_cmd);
+}
diff --git a/src/libmsc/Makefile.am b/src/libmsc/Makefile.am
index 3c06514..16154ff 100644
--- a/src/libmsc/Makefile.am
+++ b/src/libmsc/Makefile.am
@@ -12,6 +12,7 @@
$(COVERAGE_CFLAGS) \
$(LIBCRYPTO_CFLAGS) \
$(LIBSMPP34_CFLAGS) \
+ $(LIBASN1C_CFLAGS) \
$(NULL)
noinst_HEADERS = \
@@ -25,11 +26,14 @@
libmsc_a_SOURCES = \
a_iface.c \
auth.c \
+ msc_vty.c \
db.c \
gsm_04_08.c \
gsm_04_11.c \
gsm_04_80.c \
gsm_subscriber.c \
+ iucs.c \
+ iucs_ranap.c \
mncc.c \
mncc_builtin.c \
mncc_sock.c \
@@ -45,6 +49,11 @@
meas_feed.c \
subscr_conn.c \
$(NULL)
+if !BUILD_IU
+libmsc_a_SOURCES += \
+ iu_dummy.c \
+ $(NULL)
+endif
if BUILD_SMPP
noinst_HEADERS += \
diff --git a/src/libmsc/a_iface.c b/src/libmsc/a_iface.c
index 1f471f9..caf9d4b 100644
--- a/src/libmsc/a_iface.c
+++ b/src/libmsc/a_iface.c
@@ -35,6 +35,14 @@
return -1;
}
+int a_page(const char *imsi, uint32_t tmsi, uint16_t lac)
+{
+ LOGP(DMSC, LOGL_ERROR, "Paging to be sent to BSC, but A-interface"
+ " not implemented: IMSI %s TMSI 0x%08x LAC %u\n",
+ imsi, tmsi, lac);
+ return -1;
+}
+
int msc_gsm0808_tx_cipher_mode(struct gsm_subscriber_connection *conn, int cipher,
const uint8_t *key, int len, int include_imeisv)
{
diff --git a/src/libmsc/gsm_04_08.c b/src/libmsc/gsm_04_08.c
index 21ffaaa..3f3f905 100644
--- a/src/libmsc/gsm_04_08.c
+++ b/src/libmsc/gsm_04_08.c
@@ -31,6 +31,7 @@
#include <netinet/in.h>
#include <regex.h>
#include <sys/types.h>
+#include <openssl/rand.h>
#include "bscconfig.h"
@@ -69,6 +70,13 @@
#include <osmocom/core/talloc.h>
#include <osmocom/core/utils.h>
#include <osmocom/gsm/tlv.h>
+#include <osmocom/crypt/auth.h>
+
+#include <openbsc/msc_ifaces.h>
+
+#ifdef BUILD_IU
+#include <openbsc/iu.h>
+#endif
#include <assert.h>
@@ -105,7 +113,7 @@
gh->proto_discr = trans->protocol | (trans->transaction_id << 4);
}
- return gsm0808_submit_dtap(conn, msg, 0, 0);
+ return msc_tx_dtap(conn, msg);
}
int gsm48_cc_tx_notify_ss(struct gsm_trans *trans, const char *message)
@@ -141,7 +149,7 @@
}
/* Chapter 9.2.14 : Send LOCATION UPDATING REJECT */
-int gsm0408_loc_upd_rej(struct gsm_subscriber_connection *conn, uint8_t cause)
+static int gsm0408_loc_upd_rej(struct gsm_subscriber_connection *conn, uint8_t cause)
{
struct msgb *msg;
@@ -184,12 +192,17 @@
len = gsm48_generate_mid_from_imsi(mi, conn->vsub->imsi);
mid = msgb_put(msg, len);
memcpy(mid, mi, len);
+ DEBUGP(DMM, "-> %s LOCATION UPDATE ACCEPT\n",
+ vlr_subscr_name(conn->vsub));
} else {
/* Include the TMSI, which means that the MS will send a
* TMSI REALLOCATION COMPLETE, and we should wait for
* that until T3250 expiration */
mid = msgb_put(msg, GSM48_MID_TMSI_LEN);
gsm48_generate_mid_from_tmsi(mid, send_tmsi);
+ DEBUGP(DMM, "-> %s LOCATION UPDATE ACCEPT (TMSI = 0x%08x)\n",
+ vlr_subscr_name(conn->vsub),
+ send_tmsi);
}
/* TODO: Follow-on proceed */
/* TODO: CTS permission */
@@ -197,7 +210,6 @@
/* TODO: Emergency Number List */
/* TODO: Per-MS T3312 */
- DEBUGP(DMM, "-> LOCATION UPDATE ACCEPT\n");
return gsm48_conn_sendmsg(msg, conn, NULL);
}
@@ -257,11 +269,11 @@
uint8_t mi_type;
char mi_string[GSM48_MI_SIZE];
enum vlr_lu_type vlr_lu_type = VLR_LU_TYPE_REGULAR;
-
uint32_t tmsi;
char *imsi;
struct osmo_location_area_id old_lai, new_lai;
struct osmo_fsm_inst *lu_fsm;
+ bool is_utran;
int rc;
lu = (struct gsm48_loc_upd_req *) gh->data;
@@ -327,16 +339,18 @@
new_lai.lac = conn->lac;
DEBUGP(DMM, "LU/new-LAC: %u/%u\n", old_lai.lac, new_lai.lac);
+ is_utran = (conn->via_ran == RAN_UTRAN_IU);
lu_fsm = vlr_loc_update(conn->conn_fsm,
SUBSCR_CONN_E_ACCEPTED,
SUBSCR_CONN_E_CN_CLOSE,
(void*)&conn_from_lu,
net->vlr, conn, vlr_lu_type, tmsi, imsi,
&old_lai, &new_lai,
- conn->network->authentication_required,
- conn->network->a5_encryption,
+ is_utran || conn->network->authentication_required,
+ is_utran? VLR_CIPH_A5_3
+ : conn->network->a5_encryption,
classmark_is_r99(&conn->classmark),
- conn->via_ran == RAN_UTRAN_IU,
+ is_utran,
net->vlr->cfg.assign_tmsi);
if (!lu_fsm) {
DEBUGP(DRR, "%s: Can't start LU FSM\n", mi_string);
@@ -629,6 +643,7 @@
uint8_t mi_len = *(classmark2 + classmark2_len);
uint8_t *mi = (classmark2 + classmark2_len + 1);
struct osmo_location_area_id lai;
+ bool is_utran;
int rc;
lai.plmn.mcc = conn->network->country_code;
@@ -685,16 +700,18 @@
return rc;
}
+ is_utran = (conn->via_ran == RAN_UTRAN_IU);
vlr_proc_acc_req(conn->conn_fsm,
SUBSCR_CONN_E_ACCEPTED,
SUBSCR_CONN_E_CN_CLOSE,
(void*)&conn_from_cm_service_req,
net->vlr, conn,
VLR_PR_ARQ_T_CM_SERV_REQ, mi-1, &lai,
- conn->network->authentication_required,
- conn->network->a5_encryption,
+ is_utran || conn->network->authentication_required,
+ is_utran? VLR_CIPH_A5_3
+ : conn->network->a5_encryption,
classmark_is_r99(&conn->classmark),
- conn->via_ran == RAN_UTRAN_IU);
+ is_utran);
return 0;
}
@@ -1038,6 +1055,7 @@
char mi_string[GSM48_MI_SIZE];
int rc = 0;
struct osmo_location_area_id lai;
+ bool is_utran;
lai.plmn.mcc = conn->network->country_code;
lai.plmn.mnc = conn->network->network_code;
@@ -1063,18 +1081,20 @@
memcpy(conn->classmark.classmark2, classmark2_lv+1, *classmark2_lv);
conn->classmark.classmark2_len = *classmark2_lv;
+ is_utran = (conn->via_ran == RAN_UTRAN_IU);
vlr_proc_acc_req(conn->conn_fsm,
SUBSCR_CONN_E_ACCEPTED,
SUBSCR_CONN_E_CN_CLOSE,
(void*)&conn_from_paging_resp,
net->vlr, conn,
VLR_PR_ARQ_T_PAGING_RESP, mi_lv, &lai,
- conn->network->authentication_required,
- conn->network->a5_encryption,
+ is_utran || conn->network->authentication_required,
+ is_utran? VLR_CIPH_A5_3
+ : conn->network->a5_encryption,
classmark_is_r99(&conn->classmark),
- conn->via_ran == RAN_UTRAN_IU);
+ is_utran);
- return rc;
+ return 0;
}
static int gsm48_rx_rr_app_info(struct gsm_subscriber_connection *conn, struct msgb *msg)
@@ -1365,8 +1385,7 @@
/* Which subscriber do we want to track trans1 or trans2? */
log_set_context(LOG_CTX_VLR_SUBSCR, trans1->vsub);
- /* future: msc_call_bridge(trans1, trans2); */
- return -1;
+ return msc_call_bridge(trans1, trans2);
}
static int gsm48_cc_rx_status_enq(struct gsm_trans *trans, struct msgb *msg)
@@ -1694,15 +1713,18 @@
new_cc_state(trans, GSM_CSTATE_MO_TERM_CALL_CONF);
+ msc_call_assignment(trans);
+
return mncc_recvmsg(trans->net, trans, MNCC_CALL_CONF_IND,
&call_conf);
}
-static int gsm48_cc_tx_call_proc(struct gsm_trans *trans, void *arg)
+static int gsm48_cc_tx_call_proc_and_assign(struct gsm_trans *trans, void *arg)
{
struct gsm_mncc *proceeding = arg;
struct msgb *msg = gsm48_msgb_alloc_name("GSM 04.08 CC PROC");
struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));
+ int rc;
gh->msg_type = GSM48_MT_CC_CALL_PROC;
@@ -1718,7 +1740,11 @@
if (proceeding->fields & MNCC_F_PROGRESS)
gsm48_encode_progress(msg, 0, &proceeding->progress);
- return gsm48_conn_sendmsg(msg, trans->conn, trans);
+ rc = gsm48_conn_sendmsg(msg, trans->conn, trans);
+ if (rc)
+ return rc;
+
+ return msc_call_assignment(trans);
}
static int gsm48_cc_rx_alerting(struct gsm_trans *trans, struct msgb *msg)
@@ -2555,7 +2581,7 @@
} downstatelist[] = {
/* mobile originating call establishment */
{SBIT(GSM_CSTATE_INITIATED), /* 5.2.1.2 */
- MNCC_CALL_PROC_REQ, gsm48_cc_tx_call_proc},
+ MNCC_CALL_PROC_REQ, gsm48_cc_tx_call_proc_and_assign},
{SBIT(GSM_CSTATE_INITIATED) | SBIT(GSM_CSTATE_MO_CALL_PROC), /* 5.2.1.2 | 5.2.1.5 */
MNCC_ALERT_REQ, gsm48_cc_tx_alerting},
{SBIT(GSM_CSTATE_INITIATED) | SBIT(GSM_CSTATE_MO_CALL_PROC) | SBIT(GSM_CSTATE_CALL_DELIVERED), /* 5.2.1.2 | 5.2.1.6 | 5.2.1.6 */
@@ -2732,15 +2758,15 @@
trans_free(trans);
return 0;
}
- /* store setup informations until paging was successfull */
+ /* store setup information until paging succeeds */
memcpy(&trans->cc.msg, data, sizeof(struct gsm_mncc));
/* Request a channel */
trans->paging_request = subscr_request_conn(
vsub,
- RSL_CHANNEED_TCH_F,
setup_trig_pag_evt,
- trans);
+ trans,
+ "MNCC: establish call");
if (!trans->paging_request) {
LOGP(DCC, LOGL_ERROR, "Failed to allocate paging token.\n");
vlr_subscr_put(vsub);
@@ -3007,6 +3033,16 @@
return -EACCES;
}
+ if (conn->vsub && conn->vsub->cs.attached_via_ran != conn->via_ran) {
+ LOGP(DMM, LOGL_ERROR,
+ "%s: Illegal situation: RAN type mismatch:"
+ " attached via %s, received message via %s\n",
+ vlr_subscr_name(conn->vsub),
+ ran_type_name(conn->vsub->cs.attached_via_ran),
+ ran_type_name(conn->via_ran));
+ return -EACCES;
+ }
+
#if 0
if (silent_call_reroute(conn, msg))
return silent_call_rx(conn, msg);
@@ -3090,7 +3126,13 @@
static int msc_vlr_tx_cm_serv_acc(void *msc_conn_ref)
{
struct gsm_subscriber_connection *conn = msc_conn_ref;
- return gsm48_tx_mm_serv_ack(conn);
+ return msc_gsm48_tx_mm_serv_ack(conn);
+}
+
+static int msc_vlr_tx_common_id(void *msc_conn_ref)
+{
+ struct gsm_subscriber_connection *conn = msc_conn_ref;
+ return msc_tx_common_id(conn);
}
/* VLR asks us to transmit a CM Service Reject */
@@ -3124,7 +3166,7 @@
break;
};
- return gsm48_tx_mm_serv_rej(conn, cause);
+ return msc_gsm48_tx_mm_serv_rej(conn, cause);
}
/* VLR asks us to start using ciphering */
@@ -3152,9 +3194,47 @@
return -EINVAL;
}
- /* TODO: MSCSPLIT: don't directly push BSC buttons */
- return gsm0808_cipher_mode(conn, ciph, tuple->vec.kc, 8,
- retrieve_imeisv);
+ switch (conn->via_ran) {
+ case RAN_GERAN_A:
+ DEBUGP(DMM, "-> CIPHER MODE COMMAND %s\n",
+ vlr_subscr_name(conn->vsub));
+ return msc_gsm0808_tx_cipher_mode(conn, ciph, tuple->vec.kc, 8,
+ retrieve_imeisv);
+ case RAN_UTRAN_IU:
+#ifdef BUILD_IU
+ DEBUGP(DMM, "-> SECURITY MODE CONTROL %s\n",
+ vlr_subscr_name(conn->vsub));
+ return iu_tx_sec_mode_cmd(conn->iu.ue_ctx, tuple, 0, 1);
+#else
+ LOGP(DMM, LOGL_ERROR, "Cannot send Security Mode Control over RAN_UTRAN_IU,"
+ " built without Iu support\n");
+ return -ENOTSUP;
+#endif
+
+ default:
+ break;
+ }
+ LOGP(DMM, LOGL_ERROR,
+ "%s: cannot start ciphering, unknown RAN type %d\n",
+ vlr_subscr_name(conn->vsub), conn->via_ran);
+ return -ENOTSUP;
+}
+
+void msc_rx_sec_mode_compl(struct gsm_subscriber_connection *conn)
+{
+ struct vlr_ciph_result vlr_res = {};
+
+ if (!conn || !conn->vsub) {
+ LOGP(DMM, LOGL_ERROR,
+ "Rx Security Mode Complete for invalid conn\n");
+ return;
+ }
+
+ DEBUGP(DMM, "<- SECURITY MODE COMPLETE %s\n",
+ vlr_subscr_name(conn->vsub));
+
+ vlr_res.cause = VLR_CIPH_COMPL;
+ vlr_subscr_rx_ciph_res(conn->vsub, &vlr_res);
}
/* VLR informs us that the subscriber data has somehow been modified */
@@ -3170,6 +3250,7 @@
struct gsm_subscriber_connection *conn = msc_conn_ref;
OSMO_ASSERT(!conn->vsub);
conn->vsub = vlr_subscr_get(vsub);
+ conn->vsub->cs.attached_via_ran = conn->via_ran;
}
/* operations that we need to implement for libvlr */
@@ -3182,6 +3263,7 @@
.tx_cm_serv_acc = msc_vlr_tx_cm_serv_acc,
.tx_cm_serv_rej = msc_vlr_tx_cm_serv_rej,
.set_ciph_mode = msc_vlr_set_ciph_mode,
+ .tx_common_id = msc_vlr_tx_common_id,
.subscr_update = msc_vlr_subscr_update,
.subscr_assoc = msc_vlr_subscr_assoc,
};
@@ -3203,19 +3285,3 @@
return vlr_start("MSC", net->vlr, net->gsup_server_addr_str,
net->gsup_server_port);
}
-
-/* This is a temporary shim merely to ensure that the unit tests still work. It
- * shall be removed as soon as Iu and A interface paging is implemented. */
-int msc_fake_paging_request(struct vlr_subscr *vsub)
-{
- LOGP(DMM, LOGL_ERROR, "Paging currently not implemented in the MSC.\n");
- OSMO_ASSERT(false);
-}
-
-/* This is a temporary shim merely to ensure that the unit tests still work. It
- * shall be removed as soon as Iu and A interface paging is implemented. */
-void msc_fake_paging_request_stop(struct vlr_subscr *vsub)
-{
- LOGP(DMM, LOGL_ERROR, "Paging currently not implemented in the MSC.\n");
- OSMO_ASSERT(false);
-}
diff --git a/src/libmsc/gsm_04_11.c b/src/libmsc/gsm_04_11.c
index 3255a3b..bdf2ad7 100644
--- a/src/libmsc/gsm_04_11.c
+++ b/src/libmsc/gsm_04_11.c
@@ -55,7 +55,7 @@
#include <openbsc/paging.h>
#include <openbsc/bsc_rll.h>
#include <openbsc/chan_alloc.h>
-#include <openbsc/bsc_api.h>
+#include <openbsc/msc_ifaces.h>
#include <openbsc/osmo_msc.h>
#include <openbsc/vlr.h>
@@ -128,7 +128,7 @@
{
DEBUGP(DLSMS, "GSM4.11 TX %s\n", osmo_hexdump(msg->data, msg->len));
msg->l3h = msg->data;
- return gsm0808_submit_dtap(conn, msg, UM_SAPI_SMS, 1);
+ return msc_tx_dtap(conn, msg);
}
/* Prefix msg with a 04.08/04.11 CP header */
@@ -1016,8 +1016,7 @@
/* if not, we have to start paging */
LOGP(DLSMS, LOGL_DEBUG, "Sending SMS: no connection open, start paging %s\n",
vlr_subscr_name(vsub));
- res = subscr_request_conn(vsub, RSL_CHANNEED_SDCCH, paging_cb_send_sms,
- sms);
+ res = subscr_request_conn(vsub, paging_cb_send_sms, sms, "send SMS");
if (!res) {
send_signal(S_SMS_UNKNOWN_ERROR, NULL, sms, GSM_PAGING_BUSY);
sms_free(sms);
diff --git a/src/libmsc/gsm_04_80.c b/src/libmsc/gsm_04_80.c
index 479d6fb..bec1d26 100644
--- a/src/libmsc/gsm_04_80.c
+++ b/src/libmsc/gsm_04_80.c
@@ -32,7 +32,7 @@
#include <openbsc/gsm_data.h>
#include <openbsc/gsm_04_08.h>
#include <openbsc/gsm_04_80.h>
-#include <openbsc/bsc_api.h>
+#include <openbsc/msc_ifaces.h>
#include <osmocom/gsm/gsm0480.h>
#include <osmocom/gsm/gsm_utils.h>
@@ -106,7 +106,7 @@
| (1<<7); /* TI direction = 1 */
gh->msg_type = GSM0480_MTYPE_RELEASE_COMPLETE;
- return gsm0808_submit_dtap(conn, msg, 0, 0);
+ return msc_tx_dtap(conn, msg);
}
int gsm0480_send_ussd_reject(struct gsm_subscriber_connection *conn,
@@ -135,7 +135,7 @@
gh->proto_discr |= req->transaction_id | (1<<7); /* TI direction = 1 */
gh->msg_type = GSM0480_MTYPE_RELEASE_COMPLETE;
- return gsm0808_submit_dtap(conn, msg, 0, 0);
+ return msc_tx_dtap(conn, msg);
}
int msc_send_ussd_notify(struct gsm_subscriber_connection *conn, int level, const char *text)
@@ -143,7 +143,7 @@
struct msgb *msg = gsm0480_create_ussd_notify(level, text);
if (!msg)
return -1;
- return gsm0808_submit_dtap(conn, msg, 0, 0);
+ return msc_tx_dtap(conn, msg);
}
int msc_send_ussd_release_complete(struct gsm_subscriber_connection *conn)
@@ -151,5 +151,5 @@
struct msgb *msg = gsm0480_create_ussd_release_complete();
if (!msg)
return -1;
- return gsm0808_submit_dtap(conn, msg, 0, 0);
+ return msc_tx_dtap(conn, msg);
}
diff --git a/src/libmsc/gsm_subscriber.c b/src/libmsc/gsm_subscriber.c
index 69d79b0..ac6c96a 100644
--- a/src/libmsc/gsm_subscriber.c
+++ b/src/libmsc/gsm_subscriber.c
@@ -40,6 +40,9 @@
#include <openbsc/db.h>
#include <openbsc/chan_alloc.h>
#include <openbsc/vlr.h>
+#include <openbsc/iu.h>
+#include <openbsc/osmo_msc.h>
+#include <openbsc/msc_ifaces.h>
int subscr_paging_dispatch(unsigned int hooknum, unsigned int event,
struct msgb *msg, void *data, void *param)
@@ -49,27 +52,41 @@
struct vlr_subscr *vsub = param;
struct paging_signal_data sig_data;
- OSMO_ASSERT(vsub && vsub->cs.is_paging);
+ OSMO_ASSERT(vsub);
+ OSMO_ASSERT(hooknum == GSM_HOOK_RR_PAGING);
+ OSMO_ASSERT(!(conn && (conn->vsub != vsub)));
+ OSMO_ASSERT(!((event == GSM_PAGING_SUCCEEDED) && !conn));
- /* FIXME: implement stop paging in libmsc;
- * faking it for the unit tests to still work */
- msc_fake_paging_request_stop(vsub);
+ LOGP(DPAG, LOGL_DEBUG, "Paging %s for %s (event=%d)\n",
+ event == GSM_PAGING_SUCCEEDED ? "success" : "failure",
+ vlr_subscr_name(vsub), event);
+
+ if (!vsub->cs.is_paging) {
+ LOGP(DPAG, LOGL_ERROR,
+ "Paging Response received for subscriber"
+ " that is not paging.\n");
+ return -EINVAL;
+ }
+
+ if (event == GSM_PAGING_SUCCEEDED)
+ msc_stop_paging(vsub);
/* Inform parts of the system we don't know */
- sig_data.vsub = vsub;
- sig_data.bts = conn ? conn->bts : NULL;
- sig_data.conn = conn;
+ sig_data.vsub = vsub;
+ sig_data.conn = conn;
sig_data.paging_result = event;
- osmo_signal_dispatch(
- SS_PAGING,
- event == GSM_PAGING_SUCCEEDED ?
- S_PAGING_SUCCEEDED : S_PAGING_EXPIRED,
- &sig_data
- );
+ osmo_signal_dispatch(SS_PAGING,
+ event == GSM_PAGING_SUCCEEDED ?
+ S_PAGING_SUCCEEDED : S_PAGING_EXPIRED,
+ &sig_data);
llist_for_each_entry_safe(request, tmp, &vsub->cs.requests, entry) {
llist_del(&request->entry);
- request->cbfn(hooknum, event, msg, data, request->param);
+ if (request->cbfn) {
+ LOGP(DPAG, LOGL_DEBUG, "Calling paging cbfn.\n");
+ request->cbfn(hooknum, event, msg, data, request->param);
+ } else
+ LOGP(DPAG, LOGL_DEBUG, "Paging without action.\n");
talloc_free(request);
}
@@ -79,21 +96,48 @@
return 0;
}
-struct subscr_request *subscr_request_conn(struct vlr_subscr *vsub, int channel_type, gsm_cbfn *cbfn,
- void *param)
+int msc_paging_request(struct vlr_subscr *vsub)
+{
+ /* The subscriber was last seen in subscr->lac. Find out which
+ * BSCs/RNCs are responsible and send them a paging request via open
+ * SCCP connections (if any). */
+ /* TODO Implementing only RNC paging, since this is code on the iu branch.
+ * Need to add BSC paging at some point. */
+ switch (vsub->cs.attached_via_ran) {
+ case RAN_GERAN_A:
+ return a_page(vsub->imsi, vsub->tmsi, vsub->lac);
+ case RAN_UTRAN_IU:
+ return iu_page_cs(vsub->imsi,
+ vsub->tmsi == GSM_RESERVED_TMSI?
+ NULL : &vsub->tmsi,
+ vsub->lac);
+ default:
+ break;
+ }
+
+ LOGP(DPAG, LOGL_ERROR, "%s: Cannot page, subscriber not attached\n",
+ vlr_subscr_name(vsub));
+ return -EINVAL;
+}
+
+/*! \brief Start a paging request for vsub, call cbfn(param) when done.
+ * \param vsub subscriber to page.
+ * \param cbfn function to call when the conn is established.
+ * \param param caller defined param to pass to cbfn().
+ * \param label human readable label of the request kind used for logging.
+ */
+struct subscr_request *subscr_request_conn(struct vlr_subscr *vsub,
+ gsm_cbfn *cbfn, void *param,
+ const char *label)
{
int rc;
struct subscr_request *request;
/* Start paging.. we know it is async so we can do it before */
if (!vsub->cs.is_paging) {
- LOGP(DMM, LOGL_DEBUG, "Subscriber %s not paged yet.\n",
+ LOGP(DMM, LOGL_DEBUG, "Subscriber %s not paged yet, start paging.\n",
vlr_subscr_name(vsub));
-
- /* FIXME: implement paging in libmsc;
- * faking it for the unit tests to still work */
- rc = msc_fake_paging_request(vsub);
-
+ rc = msc_paging_request(vsub);
if (rc <= 0) {
LOGP(DMM, LOGL_ERROR, "Subscriber %s paging failed: %d\n",
vlr_subscr_name(vsub), rc);
@@ -102,6 +146,9 @@
/* reduced on the first paging callback */
vlr_subscr_get(vsub);
vsub->cs.is_paging = true;
+ } else {
+ LOGP(DMM, LOGL_DEBUG, "Subscriber %s already paged.\n",
+ vlr_subscr_name(vsub));
}
/* TODO: Stop paging in case of memory allocation failure */
diff --git a/src/libmsc/iu_dummy.c b/src/libmsc/iu_dummy.c
new file mode 100644
index 0000000..1f5dffb
--- /dev/null
+++ b/src/libmsc/iu_dummy.c
@@ -0,0 +1,93 @@
+/* Trivial switch-off of external Iu dependencies,
+ * allowing to run full unit tests even when built without Iu support. */
+
+/*
+ * (C) 2016,2017 by sysmocom s.f.m.c. GmbH <info@sysmocom.de>
+ *
+ * Author: Neels Hofmeyr <nhofmeyr@sysmocom.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 "../../bscconfig.h"
+#ifndef BUILD_IU
+
+#include <stdint.h>
+#include <stdbool.h>
+
+#include <osmocom/core/logging.h>
+#include <osmocom/vty/logging.h>
+#include <osmocom/core/msgb.h>
+
+struct msgb;
+struct ue_conn_ctx;
+struct gsm_auth_tuple;
+struct RANAP_Cause;
+
+int iu_tx(struct msgb *msg, uint8_t sapi)
+{
+ LOGP(DLGLOBAL, LOGL_INFO, "iu_tx() dummy called, NOT transmitting %d bytes: %s\n",
+ msg->len, osmo_hexdump(msg->data, msg->len));
+ return 0;
+}
+
+int iu_tx_sec_mode_cmd(struct ue_conn_ctx *uectx, struct gsm_auth_tuple *tp,
+ int send_ck)
+{
+ LOGP(DLGLOBAL, LOGL_INFO, "iu_tx_sec_mode_cmd() dummy called, NOT transmitting Security Mode Command\n");
+ return 0;
+}
+
+int iu_page_cs(const char *imsi, const uint32_t *tmsi, uint16_t lac)
+{
+ LOGP(DLGLOBAL, LOGL_INFO, "iu_page_cs() dummy called, NOT paging\n");
+ return 23;
+}
+
+int iu_page_ps(const char *imsi, const uint32_t *ptmsi, uint16_t lac, uint8_t rac)
+{
+ LOGP(DLGLOBAL, LOGL_INFO, "iu_page_ps() dummy called, NOT paging\n");
+ return 0;
+}
+
+struct msgb *ranap_new_msg_rab_assign_voice(uint8_t rab_id, uint32_t rtp_ip,
+ uint16_t rtp_port,
+ bool use_x213_nsap)
+{
+ LOGP(DLGLOBAL, LOGL_INFO, "ranap_new_msg_rab_assign_voice() dummy called, NOT composing RAB Assignment\n");
+ return NULL;
+}
+
+int iu_rab_act(struct ue_conn_ctx *ue_ctx, struct msgb *msg)
+{
+ LOGP(DLGLOBAL, LOGL_INFO, "iu_rab_act() dummy called, NOT activating RAB\n");
+ return 0;
+}
+
+int iu_tx_common_id(struct ue_conn_ctx *uectx, const char *imsi)
+{
+ LOGP(DLGLOBAL, LOGL_INFO, "iu_tx_common_id() dummy called, NOT sending CommonID\n");
+ return 0;
+}
+
+int iu_tx_release(struct ue_conn_ctx *ctx, const struct RANAP_Cause *cause)
+{
+ LOGP(DLGLOBAL, LOGL_INFO, "iu_tx_release() dummy called, NOT sending Release\n");
+ return 0;
+}
+
+#endif
diff --git a/src/libmsc/iucs.c b/src/libmsc/iucs.c
new file mode 100644
index 0000000..aeda140
--- /dev/null
+++ b/src/libmsc/iucs.c
@@ -0,0 +1,191 @@
+/* Code to manage MSC subscriber connections over IuCS interface */
+
+/*
+ * (C) 2016,2017 by sysmocom s.f.m.c. GmbH <info@sysmocom.de>
+ *
+ * Author: Neels Hofmeyr <nhofmeyr@sysmocom.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 <inttypes.h>
+
+#include <osmocom/core/logging.h>
+#include <openbsc/debug.h>
+
+#include <openbsc/gsm_data.h>
+#include <openbsc/iu.h>
+#include <openbsc/gsm_subscriber.h>
+#include <openbsc/osmo_msc.h>
+#include <openbsc/vlr.h>
+
+/* For A-interface see libbsc/bsc_api.c subscr_con_allocate() */
+static struct gsm_subscriber_connection *subscr_conn_allocate_iu(struct gsm_network *network,
+ struct ue_conn_ctx *ue,
+ uint16_t lac)
+{
+ struct gsm_subscriber_connection *conn;
+
+ DEBUGP(DIUCS, "Allocating IuCS subscriber conn: lac %d, link_id %p, conn_id %" PRIx32 "\n",
+ lac, ue->link, ue->conn_id);
+
+ conn = talloc_zero(network, struct gsm_subscriber_connection);
+ if (!conn)
+ return NULL;
+
+ conn->network = network;
+ conn->via_ran = RAN_UTRAN_IU;
+ conn->iu.ue_ctx = ue;
+ conn->iu.ue_ctx->rab_assign_addr_enc = network->iu.rab_assign_addr_enc;
+ conn->lac = lac;
+
+ llist_add_tail(&conn->entry, &network->subscr_conns);
+ return conn;
+}
+
+static int same_ue_conn(struct ue_conn_ctx *a, struct ue_conn_ctx *b)
+{
+ if (a == b)
+ return 1;
+ return (a->link == b->link)
+ && (a->conn_id == b->conn_id);
+}
+
+static inline void log_subscribers(struct gsm_network *network)
+{
+ if (!log_check_level(DIUCS, LOGL_DEBUG))
+ return;
+
+ struct gsm_subscriber_connection *conn;
+ int i = 0;
+ llist_for_each_entry(conn, &network->subscr_conns, entry) {
+ DEBUGP(DIUCS, "%3d: %s", i, vlr_subscr_name(conn->vsub));
+ switch (conn->via_ran) {
+ case RAN_UTRAN_IU:
+ DEBUGPC(DIUCS, " Iu");
+ if (conn->iu.ue_ctx) {
+ DEBUGPC(DIUCS, " link %p, conn_id %d",
+ conn->iu.ue_ctx->link,
+ conn->iu.ue_ctx->conn_id
+ );
+ }
+ break;
+ case RAN_GERAN_A:
+ DEBUGPC(DIUCS, " A");
+ /* TODO log A-interface connection details */
+ break;
+ case RAN_UNKNOWN:
+ DEBUGPC(DIUCS, " ?");
+ break;
+ default:
+ DEBUGPC(DIUCS, " invalid");
+ break;
+ }
+ DEBUGPC(DIUCS, "\n");
+ i++;
+ }
+ DEBUGP(DIUCS, "subscribers registered: %d\n", i);
+}
+
+/* Return an existing IuCS subscriber connection record for the given link and
+ * connection IDs, or return NULL if not found. */
+struct gsm_subscriber_connection *subscr_conn_lookup_iu(
+ struct gsm_network *network,
+ struct ue_conn_ctx *ue)
+{
+ struct gsm_subscriber_connection *conn;
+
+ DEBUGP(DIUCS, "Looking for IuCS subscriber: link_id %p, conn_id %" PRIx32 "\n",
+ ue->link, ue->conn_id);
+ log_subscribers(network);
+
+ llist_for_each_entry(conn, &network->subscr_conns, entry) {
+ if (conn->via_ran != RAN_UTRAN_IU)
+ continue;
+ if (!same_ue_conn(conn->iu.ue_ctx, ue))
+ continue;
+ DEBUGP(DIUCS, "Found IuCS subscriber for link_id %p, conn_id %" PRIx32 "\n",
+ ue->link, ue->conn_id);
+ return conn;
+ }
+ DEBUGP(DIUCS, "No IuCS subscriber found for link_id %p, conn_id %" PRIx32 "\n",
+ ue->link, ue->conn_id);
+ return NULL;
+}
+
+/* Receive MM/CC/... message from IuCS (SCCP user SAP).
+ * msg->dst must reference a struct ue_conn_ctx, which identifies the peer that
+ * sent the msg.
+ *
+ * For A-interface see libbsc/bsc_api.c gsm0408_rcvmsg(). */
+int gsm0408_rcvmsg_iucs(struct gsm_network *network, struct msgb *msg,
+ uint16_t *lac)
+{
+ int rc;
+ struct ue_conn_ctx *ue_ctx;
+ struct gsm_subscriber_connection *conn;
+
+ ue_ctx = (struct ue_conn_ctx*)msg->dst;
+
+ /* TODO: are there message types that could allow us to skip this
+ * search? */
+ conn = subscr_conn_lookup_iu(network, ue_ctx);
+
+ if (conn && lac && (conn->lac != *lac)) {
+ LOGP(DIUCS, LOGL_ERROR, "IuCS subscriber has changed LAC"
+ " within the same connection, discarding connection:"
+ " %s from LAC %d to %d\n",
+ vlr_subscr_name(conn->vsub), conn->lac, *lac);
+ /* Deallocate conn with previous LAC */
+ msc_subscr_conn_close(conn, GSM_CAUSE_INV_MAND_INFO);
+ /* At this point we could be tolerant and allocate a new
+ * connection, but changing the LAC within the same connection
+ * is shifty. Rather cancel everything. */
+ return -1;
+ }
+
+ if (conn) {
+ /* Make sure we don't receive RR over IuCS; otherwise all
+ * messages handled by gsm0408_dispatch() are of interest (CC,
+ * MM, SMS, NS_SS, maybe even MM_GPRS and SM_GPRS). */
+ struct gsm48_hdr *gh = msgb_l3(msg);
+ uint8_t pdisc = gh->proto_discr & 0x0f;
+ OSMO_ASSERT(pdisc != GSM48_PDISC_RR);
+
+ msc_dtap(conn, ue_ctx->conn_id, msg);
+ rc = 0;
+ } else {
+ /* allocate a new connection */
+
+ if (!lac) {
+ LOGP(DIUCS, LOGL_ERROR, "New IuCS subscriber"
+ " but no LAC available. Expecting an InitialUE"
+ " message containing a LAI IE."
+ " Dropping connection.\n");
+ return -1;
+ }
+
+ conn = subscr_conn_allocate_iu(network, ue_ctx, *lac);
+ if (!conn)
+ abort();
+
+ /* ownership of conn hereby goes to the MSC: */
+ rc = msc_compl_l3(conn, msg, 0);
+ }
+
+ return rc;
+}
diff --git a/src/libmsc/iucs_ranap.c b/src/libmsc/iucs_ranap.c
new file mode 100644
index 0000000..c016474
--- /dev/null
+++ b/src/libmsc/iucs_ranap.c
@@ -0,0 +1,104 @@
+/* Implementation of RANAP messages to/from an MSC via an Iu-CS interface.
+ * This keeps direct RANAP dependencies out of libmsc. */
+
+/* (C) 2016 by sysmocom s.m.f.c. GmbH <info@sysmocom.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 "../../bscconfig.h"
+
+#ifdef BUILD_IU
+
+#include <osmocom/core/logging.h>
+
+#include <osmocom/ranap/ranap_ies_defs.h>
+
+#include <openbsc/debug.h>
+#include <openbsc/gsm_data.h>
+#include <openbsc/gsm_subscriber.h>
+#include <openbsc/iu.h>
+#include <openbsc/iucs.h>
+#include <openbsc/vlr.h>
+#include <openbsc/iucs_ranap.h>
+#include <openbsc/osmo_msc.h>
+
+/* To continue authorization after a Security Mode Complete */
+int gsm0408_authorize(struct gsm_subscriber_connection *conn);
+
+static int iucs_rx_rab_assign(struct gsm_subscriber_connection *conn,
+ RANAP_RAB_SetupOrModifiedItemIEs_t *setup_ies)
+{
+ uint8_t rab_id;
+ RANAP_RAB_SetupOrModifiedItem_t *item = &setup_ies->raB_SetupOrModifiedItem;
+
+ rab_id = item->rAB_ID.buf[0];
+
+ LOGP(DIUCS, LOGL_NOTICE,
+ "Received RAB assignment event for %s rab_id=%hhd\n",
+ vlr_subscr_name(conn->vsub), rab_id);
+
+ return 0;
+}
+
+int iucs_rx_sec_mode_compl(struct gsm_subscriber_connection *conn,
+ RANAP_SecurityModeCompleteIEs_t *ies)
+{
+ OSMO_ASSERT(conn->via_ran == RAN_UTRAN_IU);
+
+ /* TODO evalute ies */
+
+ msc_rx_sec_mode_compl(conn);
+ return 0;
+}
+
+int iucs_rx_ranap_event(struct gsm_network *network,
+ struct ue_conn_ctx *ue_ctx, int type, void *data)
+{
+ struct gsm_subscriber_connection *conn;
+
+ conn = subscr_conn_lookup_iu(network, ue_ctx);
+
+ if (!conn) {
+ LOGP(DRANAP, LOGL_ERROR, "Cannot find subscriber for IU event %u\n", type);
+ return -1;
+ }
+
+ switch (type) {
+ case IU_EVENT_IU_RELEASE:
+ case IU_EVENT_LINK_INVALIDATED:
+ LOGP(DIUCS, LOGL_INFO, "IuCS release for %s\n",
+ vlr_subscr_name(conn->vsub));
+ msc_subscr_conn_close(conn, 0);
+ return 0;
+
+ case IU_EVENT_SECURITY_MODE_COMPLETE:
+ LOGP(DIUCS, LOGL_INFO, "IuCS security mode complete for %s\n",
+ vlr_subscr_name(conn->vsub));
+ return iucs_rx_sec_mode_compl(conn,
+ (RANAP_SecurityModeCompleteIEs_t*)data);
+ case IU_EVENT_RAB_ASSIGN:
+ return iucs_rx_rab_assign(conn,
+ (RANAP_RAB_SetupOrModifiedItemIEs_t*)data);
+ default:
+ LOGP(DIUCS, LOGL_NOTICE, "Unknown message received:"
+ " RANAP event: %i\n", type);
+ return -1;
+ }
+}
+
+#endif /* BUILD_IU */
diff --git a/src/libmsc/msc_ifaces.c b/src/libmsc/msc_ifaces.c
index 001fcba..56cbd49 100644
--- a/src/libmsc/msc_ifaces.c
+++ b/src/libmsc/msc_ifaces.c
@@ -23,11 +23,28 @@
#include <openbsc/debug.h>
#include <openbsc/gsm_data.h>
#include <openbsc/msc_ifaces.h>
+#include <openbsc/iu.h>
+#include <openbsc/gsm_subscriber.h>
+#include <openbsc/transaction.h>
+#include <openbsc/mgcp.h>
+#include <openbsc/mgcpgw_client.h>
+#include <openbsc/vlr.h>
+
+#include "../../bscconfig.h"
+
+#ifdef BUILD_IU
+extern struct msgb *ranap_new_msg_rab_assign_voice(uint8_t rab_id,
+ uint32_t rtp_ip,
+ uint16_t rtp_port,
+ bool use_x213_nsap);
+#endif /* BUILD_IU */
static int msc_tx(struct gsm_subscriber_connection *conn, struct msgb *msg)
{
+ DEBUGP(DMSC, "msc_tx %u bytes to %s via %s\n",
+ msg->len, vlr_subscr_name(conn->vsub),
+ ran_type_name(conn->via_ran));
switch (conn->via_ran) {
- /* FUTURE
case RAN_GERAN_A:
msg->dst = conn;
return a_tx(msg);
@@ -35,7 +52,7 @@
case RAN_UTRAN_IU:
msg->dst = conn->iu.ue_ctx;
return iu_tx(msg, 0);
- */
+
default:
LOGP(DMSC, LOGL_ERROR,
"msc_tx(): conn->via_ran invalid (%d)\n",
@@ -61,7 +78,8 @@
gh->proto_discr = GSM48_PDISC_MM;
gh->msg_type = GSM48_MT_MM_CM_SERV_ACC;
- DEBUGP(DMM, "-> CM SERVICE ACCEPT\n");
+ DEBUGP(DMM, "-> CM SERVICE ACCEPT %s\n",
+ vlr_subscr_name(conn->vsub));
return msc_tx_dtap(conn, msg);
}
@@ -71,6 +89,7 @@
enum gsm48_reject_value value)
{
struct msgb *msg;
+ conn->received_cm_service_request = false;
msg = gsm48_create_mm_serv_rej(value);
if (!msg) {
@@ -82,3 +101,216 @@
return msc_tx_dtap(conn, msg);
}
+
+int msc_tx_common_id(struct gsm_subscriber_connection *conn)
+{
+ /* Common ID is only sent over IuCS */
+ if (conn->via_ran != RAN_UTRAN_IU) {
+ LOGP(DMM, LOGL_INFO,
+ "%s: Asked to transmit Common ID, but skipping"
+ " because this is not on UTRAN\n",
+ vlr_subscr_name(conn->vsub));
+ return 0;
+ }
+
+ DEBUGP(DIUCS, "%s: tx CommonID %s\n",
+ vlr_subscr_name(conn->vsub), conn->vsub->imsi);
+ return iu_tx_common_id(conn->iu.ue_ctx, conn->vsub->imsi);
+}
+
+#ifdef BUILD_IU
+static void iu_rab_act_cs(struct ue_conn_ctx *uectx, uint8_t rab_id,
+ uint32_t rtp_ip, uint16_t rtp_port)
+{
+ struct msgb *msg;
+ bool use_x213_nsap;
+ uint32_t conn_id = uectx->conn_id;
+
+ use_x213_nsap = (uectx->rab_assign_addr_enc == NSAP_ADDR_ENC_X213);
+
+ LOGP(DIUCS, LOGL_DEBUG, "Assigning RAB: conn_id=%u, rab_id=%d,"
+ " rtp=%x:%u, use_x213_nsap=%d\n", conn_id, rab_id, rtp_ip,
+ rtp_port, use_x213_nsap);
+
+ msg = ranap_new_msg_rab_assign_voice(rab_id, rtp_ip, rtp_port,
+ use_x213_nsap);
+ msg->l2h = msg->data;
+
+ if (iu_rab_act(uectx, msg))
+ LOGP(DIUCS, LOGL_ERROR, "Failed to send RAB Assignment:"
+ " conn_id=%d rab_id=%d rtp=%x:%u\n",
+ conn_id, rab_id, rtp_ip, rtp_port);
+}
+
+static void mgcp_response_rab_act_cs_crcx(struct mgcp_response *r, void *priv)
+{
+ struct gsm_trans *trans = priv;
+ struct gsm_subscriber_connection *conn = trans->conn;
+ struct ue_conn_ctx *uectx = conn->iu.ue_ctx;
+ uint32_t rtp_ip;
+ int rc;
+
+ if (r->head.response_code != 200) {
+ LOGP(DMGCP, LOGL_ERROR,
+ "MGCPGW response yields error: %d %s\n",
+ r->head.response_code, r->head.comment);
+ goto rab_act_cs_error;
+ }
+
+ rc = mgcp_response_parse_params(r);
+ if (rc) {
+ LOGP(DMGCP, LOGL_ERROR,
+ "Cannot parse MGCP response, for %s\n",
+ vlr_subscr_name(trans->vsub));
+ goto rab_act_cs_error;
+ }
+
+ conn->iu.mgcp_rtp_port_cn = r->audio_port;
+
+ rtp_ip = mgcpgw_client_remote_addr_n(conn->network->mgcpgw.client);
+ iu_rab_act_cs(uectx, conn->iu.rab_id, rtp_ip,
+ conn->iu.mgcp_rtp_port_ue);
+ /* use_x213_nsap == 0 for ip.access nano3G */
+
+rab_act_cs_error:
+ /* FIXME abort call, invalidate conn, ... */
+ return;
+}
+
+static int conn_iu_rab_act_cs(struct gsm_trans *trans)
+{
+ struct gsm_subscriber_connection *conn = trans->conn;
+ struct mgcpgw_client *mgcp = conn->network->mgcpgw.client;
+ struct msgb *msg;
+
+ /* HACK. where to scope the RAB Id? At the conn / subscriber /
+ * ue_conn_ctx? */
+ static uint8_t next_rab_id = 1;
+ conn->iu.rab_id = next_rab_id ++;
+
+ conn->iu.mgcp_rtp_endpoint =
+ mgcpgw_client_next_endpoint(conn->network->mgcpgw.client);
+ /* HACK: the addresses should be known from CRCX response
+ * and config. */
+ conn->iu.mgcp_rtp_port_ue = 4000 + 2 * conn->iu.mgcp_rtp_endpoint;
+
+ /* Establish the RTP stream first as looping back to the originator.
+ * The MDCX will patch through to the counterpart. TODO: play a ring
+ * tone instead. */
+ msg = mgcp_msg_crcx(mgcp, conn->iu.mgcp_rtp_endpoint, trans->callref,
+ MGCP_CONN_LOOPBACK);
+ return mgcpgw_client_tx(mgcp, msg, mgcp_response_rab_act_cs_crcx, trans);
+}
+#endif
+
+int msc_call_assignment(struct gsm_trans *trans)
+{
+ struct gsm_subscriber_connection *conn = trans->conn;
+
+ switch (conn->via_ran) {
+ case RAN_GERAN_A:
+ LOGP(DMSC, LOGL_ERROR,
+ "msc_call_assignment(): A-interface BSSMAP Assignment"
+ " Request not yet implemented\n");
+ return -ENOTSUP;
+
+ case RAN_UTRAN_IU:
+#ifdef BUILD_IU
+ return conn_iu_rab_act_cs(trans);
+#else
+ LOGP(DMSC, LOGL_ERROR,
+ "msc_call_assignment(): cannot send RAB Activation, built without Iu support\n");
+ return -ENOTSUP;
+#endif
+
+ default:
+ LOGP(DMSC, LOGL_ERROR,
+ "msc_tx(): conn->via_ran invalid (%d)\n",
+ conn->via_ran);
+ return -EINVAL;
+ }
+}
+
+static void mgcp_response_bridge_mdcx(struct mgcp_response *r, void *priv);
+
+static void mgcp_bridge(struct gsm_trans *from, struct gsm_trans *to,
+ enum bridge_state state,
+ enum mgcp_connection_mode mode)
+{
+ struct gsm_subscriber_connection *conn1 = from->conn;
+ struct gsm_subscriber_connection *conn2 = to->conn;
+ struct mgcpgw_client *mgcp = conn1->network->mgcpgw.client;
+ const char *ip;
+ struct msgb *msg;
+
+ OSMO_ASSERT(mgcp);
+
+ from->bridge.peer = to;
+ from->bridge.state = state;
+
+ /* Loop back to the same MGCP GW */
+ ip = mgcpgw_client_remote_addr_str(mgcp);
+
+ msg = mgcp_msg_mdcx(mgcp,
+ conn1->iu.mgcp_rtp_endpoint,
+ ip, conn2->iu.mgcp_rtp_port_cn,
+ mode);
+ if (mgcpgw_client_tx(mgcp, msg, mgcp_response_bridge_mdcx, from))
+ LOGP(DMGCP, LOGL_ERROR,
+ "Failed to send MDCX message for %s\n",
+ vlr_subscr_name(from->vsub));
+}
+
+static void mgcp_response_bridge_mdcx(struct mgcp_response *r, void *priv)
+{
+ struct gsm_trans *trans = priv;
+ struct gsm_trans *peer = trans->bridge.peer;
+
+ switch (trans->bridge.state) {
+ case BRIDGE_STATE_LOOPBACK_PENDING:
+ trans->bridge.state = BRIDGE_STATE_LOOPBACK_ESTABLISHED;
+
+ switch (peer->bridge.state) {
+ case BRIDGE_STATE_LOOPBACK_PENDING:
+ /* Wait until the other is done as well. */
+ return;
+ case BRIDGE_STATE_LOOPBACK_ESTABLISHED:
+ /* Now that both are in loopback, switch both to
+ * forwarding. */
+ mgcp_bridge(trans, peer, BRIDGE_STATE_BRIDGE_PENDING,
+ MGCP_CONN_RECV_SEND);
+ mgcp_bridge(peer, trans, BRIDGE_STATE_BRIDGE_PENDING,
+ MGCP_CONN_RECV_SEND);
+ break;
+ default:
+ LOGP(DMGCP, LOGL_ERROR,
+ "Unexpected bridge state: %d for %s\n",
+ trans->bridge.state, vlr_subscr_name(trans->vsub));
+ break;
+ }
+ break;
+
+ case BRIDGE_STATE_BRIDGE_PENDING:
+ trans->bridge.state = BRIDGE_STATE_BRIDGE_ESTABLISHED;
+ break;
+
+ default:
+ LOGP(DMGCP, LOGL_ERROR,
+ "Unexpected bridge state: %d for %s\n",
+ trans->bridge.state, vlr_subscr_name(trans->vsub));
+ break;
+ }
+}
+
+int msc_call_bridge(struct gsm_trans *trans1, struct gsm_trans *trans2)
+{
+ /* First setup as loopback and configure the counterparts' endpoints,
+ * so that when transmission starts the originating addresses are
+ * already known to be valid. The mgcp callback will continue. */
+ mgcp_bridge(trans1, trans2, BRIDGE_STATE_LOOPBACK_PENDING,
+ MGCP_CONN_LOOPBACK);
+ mgcp_bridge(trans2, trans1, BRIDGE_STATE_LOOPBACK_PENDING,
+ MGCP_CONN_LOOPBACK);
+
+ return 0;
+}
diff --git a/src/libmsc/msc_vty.c b/src/libmsc/msc_vty.c
new file mode 100644
index 0000000..82dc7d6
--- /dev/null
+++ b/src/libmsc/msc_vty.c
@@ -0,0 +1,130 @@
+/* MSC interface to quagga VTY */
+/* (C) 2016 by sysmocom s.m.f.c. GmbH <info@sysmocom.de>
+ * Based on OpenBSC interface to quagga VTY (libmsc/vty_interface_layer3.c)
+ * (C) 2009 by Harald Welte <laforge@gnumonks.org>
+ * (C) 2009-2011 by Holger Hans Peter Freyther
+ * 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/>.
+ *
+ */
+
+/* NOTE: I would have liked to call this the MSC_NODE instead of the MSC_NODE,
+ * but MSC_NODE already exists to configure a remote MSC for osmo-bsc. */
+
+#include <inttypes.h>
+
+#include <osmocom/vty/command.h>
+
+#include <openbsc/vty.h>
+#include <openbsc/gsm_data.h>
+#include <openbsc/gsm_subscriber.h>
+#include <openbsc/vlr.h>
+#include <openbsc/iu.h>
+
+static struct cmd_node msc_node = {
+ MSC_NODE,
+ "%s(config-msc)# ",
+ 1,
+};
+
+DEFUN(cfg_msc, cfg_msc_cmd,
+ "msc", "Configure MSC options")
+{
+ vty->node = MSC_NODE;
+ return CMD_SUCCESS;
+}
+
+DEFUN(cfg_msc_assign_tmsi, cfg_msc_assign_tmsi_cmd,
+ "assign-tmsi",
+ "Assign TMSI during Location Updating.\n")
+{
+ struct gsm_network *gsmnet = gsmnet_from_vty(vty);
+ gsmnet->vlr->cfg.assign_tmsi = true;
+ return CMD_SUCCESS;
+}
+
+DEFUN(cfg_msc_no_assign_tmsi, cfg_msc_no_assign_tmsi_cmd,
+ "no assign-tmsi",
+ NO_STR "Assign TMSI during Location Updating.\n")
+{
+ struct gsm_network *gsmnet = gsmnet_from_vty(vty);
+ gsmnet->vlr->cfg.assign_tmsi = false;
+ return CMD_SUCCESS;
+}
+
+static int config_write_msc(struct vty *vty)
+{
+ struct gsm_network *gsmnet = gsmnet_from_vty(vty);
+
+ vty_out(vty, "msc%s", VTY_NEWLINE);
+ vty_out(vty, " %sassign-tmsi%s",
+ gsmnet->vlr->cfg.assign_tmsi? "" : "no ", VTY_NEWLINE);
+
+ mgcpgw_client_config_write(vty, " ");
+#ifdef BUILD_IU
+ iu_vty_config_write(vty, " ");
+#endif
+
+ return CMD_SUCCESS;
+}
+
+static int config_write_net(struct vty *vty)
+{
+ struct gsm_network *gsmnet = gsmnet_from_vty(vty);
+
+ vty_out(vty, "network%s", VTY_NEWLINE);
+ vty_out(vty, " network country code %u%s", gsmnet->country_code, VTY_NEWLINE);
+ vty_out(vty, " mobile network code %u%s", gsmnet->network_code, VTY_NEWLINE);
+ vty_out(vty, " short name %s%s", gsmnet->name_short, VTY_NEWLINE);
+ vty_out(vty, " long name %s%s", gsmnet->name_long, VTY_NEWLINE);
+ vty_out(vty, " auth policy %s%s", gsm_auth_policy_name(gsmnet->auth_policy), VTY_NEWLINE);
+ vty_out(vty, " location updating reject cause %u%s",
+ gsmnet->reject_cause, VTY_NEWLINE);
+ vty_out(vty, " encryption a5 %u%s", gsmnet->a5_encryption, VTY_NEWLINE);
+ vty_out(vty, " rrlp mode %s%s", rrlp_mode_name(gsmnet->rrlp.mode),
+ VTY_NEWLINE);
+ vty_out(vty, " mm info %u%s", gsmnet->send_mm_info, VTY_NEWLINE);
+ if (gsmnet->tz.override != 0) {
+ if (gsmnet->tz.dst)
+ vty_out(vty, " timezone %d %d %d%s",
+ gsmnet->tz.hr, gsmnet->tz.mn, gsmnet->tz.dst,
+ VTY_NEWLINE);
+ else
+ vty_out(vty, " timezone %d %d%s",
+ gsmnet->tz.hr, gsmnet->tz.mn, VTY_NEWLINE);
+ }
+ if (gsmnet->t3212 == 0)
+ vty_out(vty, " no periodic location update%s", VTY_NEWLINE);
+ else
+ vty_out(vty, " periodic location update %u%s",
+ gsmnet->t3212 * 6, VTY_NEWLINE);
+
+ return CMD_SUCCESS;
+}
+
+void msc_vty_init(struct gsm_network *msc_network)
+{
+ common_cs_vty_init(msc_network, config_write_net);
+
+ install_element(CONFIG_NODE, &cfg_msc_cmd);
+ install_node(&msc_node, config_write_msc);
+ vty_install_default(MSC_NODE);
+ install_element(MSC_NODE, &cfg_msc_assign_tmsi_cmd);
+ install_element(MSC_NODE, &cfg_msc_no_assign_tmsi_cmd);
+ mgcpgw_client_vty_init(MSC_NODE, &msc_network->mgcpgw.conf);
+#ifdef BUILD_IU
+ iu_vty_init(MSC_NODE, &msc_network->iu.rab_assign_addr_enc);
+#endif
+}
diff --git a/src/libmsc/osmo_msc.c b/src/libmsc/osmo_msc.c
index c847b78..ddc3836 100644
--- a/src/libmsc/osmo_msc.c
+++ b/src/libmsc/osmo_msc.c
@@ -28,6 +28,7 @@
#include <openbsc/db.h>
#include <openbsc/vlr.h>
#include <openbsc/osmo_msc.h>
+#include <openbsc/iu.h>
#include <openbsc/gsm_04_11.h>
@@ -40,24 +41,6 @@
gsm411_sapi_n_reject(conn);
}
-static bool keep_conn(struct gsm_subscriber_connection *conn)
-{
- /* TODO: what about a silent call? */
-
- if (!conn->conn_fsm) {
- DEBUGP(DMM, "No conn_fsm, release conn\n");
- return false;
- }
-
- switch (conn->conn_fsm->state) {
- case SUBSCR_CONN_S_NEW:
- case SUBSCR_CONN_S_ACCEPTED:
- return true;
- default:
- return false;
- }
-}
-
static void subscr_conn_bump(struct gsm_subscriber_connection *conn)
{
if (!conn)
@@ -65,39 +48,32 @@
if (!conn->conn_fsm)
return;
if (!(conn->conn_fsm->state == SUBSCR_CONN_S_ACCEPTED
- || conn->conn_fsm->state == SUBSCR_CONN_S_COMMUNICATING))
+ || conn->conn_fsm->state == SUBSCR_CONN_S_COMMUNICATING)) {
+ DEBUGP(DMM, "%s: bump: conn still being established (%s)\n",
+ vlr_subscr_name(conn->vsub),
+ osmo_fsm_inst_state_name(conn->conn_fsm));
return;
+ }
osmo_fsm_inst_dispatch(conn->conn_fsm, SUBSCR_CONN_E_BUMP, NULL);
}
/* receive a Level 3 Complete message and return MSC_CONN_ACCEPT or
* MSC_CONN_REJECT */
-static int msc_compl_l3(struct gsm_subscriber_connection *conn,
- struct msgb *msg, uint16_t chosen_channel)
+int msc_compl_l3(struct gsm_subscriber_connection *conn,
+ struct msgb *msg, uint16_t chosen_channel)
{
- /* Ownership of the gsm_subscriber_connection is still a bit mucky
- * between libbsc and libmsc. In libmsc, we use ref counting, but not
- * in libbsc. This will become simpler with the MSCSPLIT. */
-
- /* reserve for the duration of this function */
msc_subscr_conn_get(conn);
-
gsm0408_dispatch(conn, msg);
- if (!keep_conn(conn)) {
- DEBUGP(DMM, "compl_l3: Discarding conn\n");
- /* keep the use_count reserved, libbsc will discard. If we
- * released the ref count and discarded here, libbsc would
- * double-free. And we will not change bsc_api semantics. */
- return MSC_CONN_REJECT;
- }
- DEBUGP(DMM, "compl_l3: Keeping conn\n");
-
/* Bump whether the conn wants to be closed */
subscr_conn_bump(conn);
/* If this should be kept, the conn->conn_fsm has placed a use_count */
msc_subscr_conn_put(conn);
+
+ /* Always return acceptance, because even if the conn was not accepted,
+ * we assumed ownership of it and the caller shall not interfere with
+ * that. We may even already have discarded the conn. */
return MSC_CONN_ACCEPT;
#if 0
@@ -119,7 +95,7 @@
}
/* Receive a DTAP message from BSC */
-static void msc_dtap(struct gsm_subscriber_connection *conn, uint8_t link_id, struct msgb *msg)
+void msc_dtap(struct gsm_subscriber_connection *conn, uint8_t link_id, struct msgb *msg)
{
msc_subscr_conn_get(conn);
gsm0408_dispatch(conn, msg);
@@ -170,8 +146,8 @@
}
/* Receive a CIPHERING MODE COMPLETE from BSC */
-static void msc_ciph_m_compl(struct gsm_subscriber_connection *conn,
- struct msgb *msg, uint8_t alg_id)
+void msc_cipher_mode_compl(struct gsm_subscriber_connection *conn,
+ struct msgb *msg, uint8_t alg_id)
{
struct gsm48_hdr *gh = msgb_l3(msg);
unsigned int payload_len = msgb_l3len(msg) - sizeof(*gh);
@@ -289,7 +265,7 @@
.assign_compl = msc_assign_compl,
.assign_fail = msc_assign_fail,
.classmark_chg = msc_classmark_chg,
- .cipher_mode_compl = msc_ciph_m_compl,
+ .cipher_mode_compl = msc_cipher_mode_compl,
.conn_cleanup = msc_subscr_con_cleanup,
};
@@ -308,7 +284,10 @@
switch (conn->via_ran) {
case RAN_UTRAN_IU:
- /* future: iu_tx_release(conn->iu.ue_ctx, NULL); */
+ iu_tx_release(conn->iu.ue_ctx, NULL);
+ /* FIXME: keep the conn until the Iu Release Outcome is
+ * received from the UE, or a timeout expires. For now, the log
+ * says "unknown UE" for each release outcome. */
break;
case RAN_GERAN_A:
/* future: a_iface_tx_clear_cmd(conn); */
@@ -390,8 +369,12 @@
"%s: MSC conn use - 1 == %u\n",
vlr_subscr_name(conn->vsub), conn->use_count);
- if (conn->use_count == 0) {
- gsm0808_clear(conn);
- bsc_subscr_con_free(conn);
- }
+ if (conn->use_count == 0)
+ msc_subscr_con_free(conn);
+}
+
+void msc_stop_paging(struct vlr_subscr *vsub)
+{
+ DEBUGP(DPAG, "Paging can stop for %s\n", vlr_subscr_name(vsub));
+ /* tell BSCs and RNCs to stop paging? How? */
}
diff --git a/src/libmsc/silent_call.c b/src/libmsc/silent_call.c
index 5fad4f4..7af7a80 100644
--- a/src/libmsc/silent_call.c
+++ b/src/libmsc/silent_call.c
@@ -133,7 +133,8 @@
/* FIXME the VTY command allows selecting a silent call channel type.
* This doesn't apply to the situation after MSCSPLIT with an
* A-interface. */
- req = subscr_request_conn(vsub, type, paging_cb_silent, data);
+ req = subscr_request_conn(vsub, paging_cb_silent, data,
+ "establish silent call");
return req != NULL;
}
diff --git a/src/libmsc/subscr_conn.c b/src/libmsc/subscr_conn.c
index b28a511..31decc7 100644
--- a/src/libmsc/subscr_conn.c
+++ b/src/libmsc/subscr_conn.c
@@ -30,6 +30,7 @@
#include <openbsc/debug.h>
#include <openbsc/transaction.h>
#include <openbsc/signal.h>
+#include <openbsc/iu.h>
#define SUBSCR_CONN_TIMEOUT 5 /* seconds */
@@ -52,8 +53,8 @@
{ 0, NULL }
};
-static void paging_resp(struct gsm_subscriber_connection *conn,
- enum gsm_paging_event pe)
+static void paging_event(struct gsm_subscriber_connection *conn,
+ enum gsm_paging_event pe)
{
subscr_paging_dispatch(GSM_HOOK_RR_PAGING, pe, NULL, conn, conn->vsub);
}
@@ -85,11 +86,17 @@
case SUBSCR_CONN_E_MO_CLOSE:
case SUBSCR_CONN_E_CN_CLOSE:
+ if (data)
+ LOGPFSM(fi, "Close event, cause %u\n",
+ *(uint32_t*)data);
+ /* will release further below, see
+ * 'if (fi->state != SUBSCR_CONN_S_ACCEPTED)' */
break;
default:
- LOGPFSM(fi, "Unexpected event: %d %s\n",
- event, osmo_fsm_event_name(fi->fsm, event));
+ LOGPFSML(fi, LOGL_ERROR,
+ "Unexpected event: %d %s\n", event,
+ osmo_fsm_event_name(fi->fsm, event));
break;
}
@@ -102,21 +109,24 @@
/* signal paging success or failure in case this was a paging */
if (from == SUBSCR_CONN_FROM_PAGING_RESP)
- paging_resp(conn,
- success ? GSM_PAGING_SUCCEEDED
- : GSM_PAGING_EXPIRED);
+ paging_event(conn,
+ success ? GSM_PAGING_SUCCEEDED
+ : GSM_PAGING_EXPIRED);
+
+ /* FIXME rate counters */
+ /*rate_ctr_inc(&conn->network->msc_ctrs->ctr[MSC_CTR_LOC_UPDATE_COMPLETED]);*/
/* On failure, discard the conn */
if (!success) {
/* TODO: on MO_CLOSE or CN_CLOSE, first go to RELEASING and
- * await BSC confirmation? */
+ * await BSC/RNC confirmation? */
osmo_fsm_inst_state_chg(fi, SUBSCR_CONN_S_RELEASED, 0, 0);
return;
}
if (from == SUBSCR_CONN_FROM_CM_SERVICE_REQ) {
conn->received_cm_service_request = true;
- LOGPFSM(fi, "received_cm_service_request = true\n");
+ LOGPFSML(fi, LOGL_DEBUG, "received_cm_service_request = true\n");
}
osmo_fsm_inst_dispatch(fi, SUBSCR_CONN_E_BUMP, data);
@@ -125,19 +135,37 @@
static void subscr_conn_fsm_bump(struct osmo_fsm_inst *fi, uint32_t event, void *data)
{
struct gsm_subscriber_connection *conn = fi->priv;
+ struct gsm_trans *trans;
- if (conn->silent_call)
+ if (conn->silent_call) {
+ LOGPFSML(fi, LOGL_DEBUG, "bump: silent call still active\n");
return;
+ }
- if (conn->received_cm_service_request)
+ if (conn->received_cm_service_request) {
+ LOGPFSML(fi, LOGL_DEBUG, "bump: still awaiting first request after a CM Service Request\n");
return;
+ }
- if (conn->vsub && !llist_empty(&conn->vsub->cs.requests))
+ if (conn->vsub && !llist_empty(&conn->vsub->cs.requests)) {
+ struct subscr_request *sr;
+ if (!log_check_level(fi->fsm->log_subsys, LOGL_DEBUG)) {
+ llist_for_each_entry(sr, &conn->vsub->cs.requests, entry) {
+ LOGPFSML(fi, LOGL_DEBUG, "bump: still active: %s\n",
+ sr->label);
+ }
+ }
return;
+ }
- if (trans_has_conn(conn))
+ if ((trans = trans_has_conn(conn))) {
+ LOGPFSML(fi, LOGL_DEBUG,
+ "bump: connection still has active transaction: %s\n",
+ gsm48_pdisc_name(trans->protocol));
return;
+ }
+ LOGPFSML(fi, LOGL_DEBUG, "bump: releasing conn\n");
osmo_fsm_inst_state_chg(fi, SUBSCR_CONN_S_RELEASED, 0, 0);
}
@@ -269,7 +297,7 @@
.num_states = ARRAY_SIZE(subscr_conn_fsm_states),
.allstate_event_mask = 0,
.allstate_action = NULL,
- .log_subsys = DVLR,
+ .log_subsys = DMM,
.event_names = subscr_conn_fsm_event_names,
.cleanup = subscr_conn_fsm_cleanup,
.timer_cb = subscr_conn_fsm_timeout,
diff --git a/src/libmsc/transaction.c b/src/libmsc/transaction.c
index d157f54..7289a8f 100644
--- a/src/libmsc/transaction.c
+++ b/src/libmsc/transaction.c
@@ -180,15 +180,15 @@
* \param[in] conn Connection to check
* \returns 1 in case there is a transaction, 0 otherwise
*/
-int trans_has_conn(const struct gsm_subscriber_connection *conn)
+struct gsm_trans *trans_has_conn(const struct gsm_subscriber_connection *conn)
{
struct gsm_trans *trans;
llist_for_each_entry(trans, &conn->network->trans_list, entry)
if (trans->conn == conn)
- return 1;
+ return trans;
- return 0;
+ return NULL;
}
/*! Free all transactions associated with a connection, presumably when the
diff --git a/src/libmsc/vty_interface_layer3.c b/src/libmsc/vty_interface_layer3.c
index 0106f91..d1bf6b3 100644
--- a/src/libmsc/vty_interface_layer3.c
+++ b/src/libmsc/vty_interface_layer3.c
@@ -21,9 +21,8 @@
#include <stdlib.h>
#include <limits.h>
#include <unistd.h>
-#include <stdbool.h>
-#include <inttypes.h>
#include <time.h>
+#include <inttypes.h>
#include <osmocom/vty/command.h>
#include <osmocom/vty/buffer.h>
@@ -474,17 +473,6 @@
return CMD_SUCCESS;
}
-DEFUN(ena_subscr_delete,
- ena_subscr_delete_cmd,
- "subscriber " SUBSCR_TYPES " ID delete",
- SUBSCR_HELP "Delete subscriber in VLR\n")
-{
- vty_out(vty, "%% 'subscriber delete' is no longer supported.%s"
- "%% This is now up to osmo-hlr.%s",
- VTY_NEWLINE, VTY_NEWLINE);
- return CMD_WARNING;
-}
-
DEFUN(ena_subscr_expire,
ena_subscr_expire_cmd,
"subscriber " SUBSCR_TYPES " ID expire",
@@ -516,43 +504,6 @@
return CMD_SUCCESS;
}
-DEFUN(ena_subscr_authorized,
- ena_subscr_authorized_cmd,
- "subscriber " SUBSCR_TYPES " ID authorized (0|1)",
- SUBSCR_HELP "(De-)Authorize subscriber in HLR\n"
- "Subscriber should NOT be authorized\n"
- "Subscriber should be authorized\n")
-{
- vty_out(vty, "%% 'subscriber authorized' is no longer supported.%s"
- "%% Authorization is now up to osmo-hlr.%s",
- VTY_NEWLINE, VTY_NEWLINE);
- return CMD_WARNING;
-}
-
-DEFUN(ena_subscr_name,
- ena_subscr_name_cmd,
- "subscriber " SUBSCR_TYPES " ID name .NAME",
- SUBSCR_HELP "Set the name of the subscriber\n"
- "Name of the Subscriber\n")
-{
- vty_out(vty, "%% 'subscriber name' is no longer supported.%s"
- "%% This is now up to osmo-hlr.%s",
- VTY_NEWLINE, VTY_NEWLINE);
- return CMD_WARNING;
-}
-
-DEFUN(ena_subscr_extension,
- ena_subscr_extension_cmd,
- "subscriber " SUBSCR_TYPES " ID extension EXTENSION",
- SUBSCR_HELP "Set the extension (phone number) of the subscriber\n"
- "Extension (phone number)\n")
-{
- vty_out(vty, "%% 'subscriber extension' is no longer supported.%s"
- "%% This is now up to osmo-hlr.%s",
- VTY_NEWLINE, VTY_NEWLINE);
- return CMD_WARNING;
-}
-
#define A3A8_ALG_TYPES "(none|xor|comp128v1)"
#define A3A8_ALG_HELP \
"Use No A3A8 algorithm\n" \
@@ -571,18 +522,6 @@
return CMD_WARNING;
}
-DEFUN(subscriber_purge,
- subscriber_purge_cmd,
- "subscriber purge-inactive",
- "Operations on a Subscriber\n" "Purge subscribers with a zero use count.\n")
-{
- /* TODO: does this still have a use with the VLR? */
- vty_out(vty, "%% 'subscriber purge-inactive' is no longer supported.%s"
- "%% This is now up to osmo-hlr.%s",
- VTY_NEWLINE, VTY_NEWLINE);
- return CMD_WARNING;
-}
-
DEFUN(subscriber_update,
subscriber_update_cmd,
"subscriber " SUBSCR_TYPES " ID update",
@@ -834,7 +773,6 @@
"Filter log messages by IMSI\n" "IMSI to be used as filter\n")
{
struct vlr_subscr *vlr_subscr;
- struct bsc_subscr *bsc_subscr;
struct gsm_network *gsmnet = gsmnet_from_vty(vty);
struct log_target *tgt = osmo_log_vty2tgt(vty);
const char *imsi = argv[0];
@@ -843,16 +781,14 @@
return CMD_WARNING;
vlr_subscr = vlr_subscr_find_by_imsi(gsmnet->vlr, imsi);
- bsc_subscr = bsc_subscr_find_by_imsi(gsmnet->bsc_subscribers, imsi);
- if (!vlr_subscr && !bsc_subscr) {
+ if (!vlr_subscr) {
vty_out(vty, "%%no subscriber with IMSI(%s)%s",
argv[0], VTY_NEWLINE);
return CMD_WARNING;
}
log_set_filter_vlr_subscr(tgt, vlr_subscr);
- log_set_filter_bsc_subscr(tgt, bsc_subscr);
return CMD_SUCCESS;
}
@@ -900,81 +836,6 @@
return CMD_SUCCESS;
}
-static struct cmd_node nitb_node = {
- NITB_NODE,
- "%s(config-nitb)# ",
- 1,
-};
-
-DEFUN(cfg_nitb, cfg_nitb_cmd,
- "nitb", "Configure NITB options")
-{
- vty->node = NITB_NODE;
- return CMD_SUCCESS;
-}
-
-/* Note: limit on the parameter length is set by internal vty code limitations */
-DEFUN(cfg_nitb_subscr_random, cfg_nitb_subscr_random_cmd,
- "subscriber-create-on-demand random <1-9999999999> <2-9999999999>",
- "Set random parameters for a new record when a subscriber is first seen.\n"
- "Set random parameters for a new record when a subscriber is first seen.\n"
- "Minimum for subscriber extension\n""Maximum for subscriber extension\n")
-{
- vty_out(vty, "%% 'subscriber-create-on-demand' is no longer supported.%s"
- "%% This is now up to osmo-hlr.%s",
- VTY_NEWLINE, VTY_NEWLINE);
- return CMD_WARNING;
-}
-
-DEFUN(cfg_nitb_subscr_create, cfg_nitb_subscr_create_cmd,
- "subscriber-create-on-demand [no-extension]",
- "Make a new record when a subscriber is first seen.\n"
- "Do not automatically assign extension to created subscribers\n")
-{
- vty_out(vty, "%% 'subscriber-create-on-demand' is no longer supported.%s"
- "%% This is now up to osmo-hlr.%s",
- VTY_NEWLINE, VTY_NEWLINE);
- return CMD_WARNING;
-}
-
-DEFUN(cfg_nitb_no_subscr_create, cfg_nitb_no_subscr_create_cmd,
- "no subscriber-create-on-demand",
- NO_STR "Make a new record when a subscriber is first seen.\n")
-{
- vty_out(vty, "%% 'subscriber-create-on-demand' is no longer supported.%s"
- "%% This is now up to osmo-hlr.%s",
- VTY_NEWLINE, VTY_NEWLINE);
- return CMD_WARNING;
-}
-
-DEFUN(cfg_nitb_assign_tmsi, cfg_nitb_assign_tmsi_cmd,
- "assign-tmsi",
- "Assign TMSI during Location Updating.\n")
-{
- struct gsm_network *gsmnet = gsmnet_from_vty(vty);
- gsmnet->vlr->cfg.assign_tmsi = true;
- return CMD_SUCCESS;
-}
-
-DEFUN(cfg_nitb_no_assign_tmsi, cfg_nitb_no_assign_tmsi_cmd,
- "no assign-tmsi",
- NO_STR "Assign TMSI during Location Updating.\n")
-{
- struct gsm_network *gsmnet = gsmnet_from_vty(vty);
- gsmnet->vlr->cfg.assign_tmsi = false;
- return CMD_SUCCESS;
-}
-
-static int config_write_nitb(struct vty *vty)
-{
- struct gsm_network *gsmnet = gsmnet_from_vty(vty);
-
- vty_out(vty, "nitb%s", VTY_NEWLINE);
- vty_out(vty, " %sassign-tmsi%s",
- gsmnet->vlr->cfg.assign_tmsi? "" : "no ", VTY_NEWLINE);
- return CMD_SUCCESS;
-}
-
int bsc_vty_init_extra(void)
{
osmo_signal_register_handler(SS_SCALL, scall_cbfn, NULL);
@@ -995,13 +856,8 @@
install_element_ve(&show_smsqueue_cmd);
install_element_ve(&logging_fltr_imsi_cmd);
- install_element(ENABLE_NODE, &ena_subscr_delete_cmd);
install_element(ENABLE_NODE, &ena_subscr_expire_cmd);
- install_element(ENABLE_NODE, &ena_subscr_name_cmd);
- install_element(ENABLE_NODE, &ena_subscr_extension_cmd);
- install_element(ENABLE_NODE, &ena_subscr_authorized_cmd);
install_element(ENABLE_NODE, &ena_subscr_a3a8_cmd);
- install_element(ENABLE_NODE, &subscriber_purge_cmd);
install_element(ENABLE_NODE, &smsqueue_trigger_cmd);
install_element(ENABLE_NODE, &smsqueue_max_cmd);
install_element(ENABLE_NODE, &smsqueue_clear_cmd);
@@ -1025,13 +881,5 @@
install_element(HLR_NODE, &cfg_hlr_remote_ip_cmd);
install_element(HLR_NODE, &cfg_hlr_remote_port_cmd);
- install_element(CONFIG_NODE, &cfg_nitb_cmd);
- install_node(&nitb_node, config_write_nitb);
- install_element(NITB_NODE, &cfg_nitb_subscr_create_cmd);
- install_element(NITB_NODE, &cfg_nitb_subscr_random_cmd);
- install_element(NITB_NODE, &cfg_nitb_no_subscr_create_cmd);
- install_element(NITB_NODE, &cfg_nitb_assign_tmsi_cmd);
- install_element(NITB_NODE, &cfg_nitb_no_assign_tmsi_cmd);
-
return 0;
}
diff --git a/src/libvlr/vlr.c b/src/libvlr/vlr.c
index 0e0d31c..d95d1b7 100644
--- a/src/libvlr/vlr.c
+++ b/src/libvlr/vlr.c
@@ -961,6 +961,9 @@
{
struct vlr_instance *vlr = talloc_zero(ctx, struct vlr_instance);
OSMO_ASSERT(vlr);
+
+ /* Some of these are needed only on UTRAN, but in case the caller wants
+ * only GERAN, she should just provide dummy callbacks. */
OSMO_ASSERT(ops->tx_auth_req);
OSMO_ASSERT(ops->tx_auth_rej);
OSMO_ASSERT(ops->tx_id_req);
@@ -969,6 +972,7 @@
OSMO_ASSERT(ops->tx_cm_serv_acc);
OSMO_ASSERT(ops->tx_cm_serv_rej);
OSMO_ASSERT(ops->set_ciph_mode);
+ OSMO_ASSERT(ops->tx_common_id);
OSMO_ASSERT(ops->subscr_update);
OSMO_ASSERT(ops->subscr_assoc);
diff --git a/src/libvlr/vlr_access_req_fsm.c b/src/libvlr/vlr_access_req_fsm.c
index 67fba56..f9ed0b5 100644
--- a/src/libvlr/vlr_access_req_fsm.c
+++ b/src/libvlr/vlr_access_req_fsm.c
@@ -254,6 +254,14 @@
LOGPFSM(fi, "%s()\n", __func__);
+ if (par->is_utran) {
+ int rc;
+ rc = par->vlr->ops.tx_common_id(par->msc_conn_ref);
+ if (rc)
+ LOGPFSML(fi, LOGL_ERROR,
+ "Error while sending Common ID (%d)\n", rc);
+ }
+
vsub->conf_by_radio_contact_ind = true;
if (vsub->loc_conf_in_hlr_ind == false) {
/* start Update_Location_Child_VLR. WE use
@@ -681,6 +689,10 @@
(ciphering_required? "+Ciph" : " (no Ciph)")
: "");
+ if (is_utran && !authentication_required)
+ LOGPFSML(fi, LOGL_ERROR,
+ "Authentication off on UTRAN network. Good luck.\n");
+
gsm48_mi_to_string(mi_string, sizeof(mi_string), mi_lv+1, mi_lv[0]);
mi_type = mi_lv[1] & GSM_MI_TYPE_MASK;
switch (mi_type) {
diff --git a/src/libvlr/vlr_lu_fsm.c b/src/libvlr/vlr_lu_fsm.c
index ae671c1..94bea56 100644
--- a/src/libvlr/vlr_lu_fsm.c
+++ b/src/libvlr/vlr_lu_fsm.c
@@ -783,6 +783,14 @@
OSMO_ASSERT(vsub);
+ if (lfp->is_utran) {
+ int rc;
+ rc = lfp->vlr->ops.tx_common_id(lfp->msc_conn_ref);
+ if (rc)
+ LOGPFSML(fi, LOGL_ERROR,
+ "Error while sending Common ID (%d)\n", rc);
+ }
+
vsub->conf_by_radio_contact_ind = true;
/* Update LAI */
vsub->cgi.lai = lfp->new_lai;
@@ -1413,6 +1421,10 @@
(ciphering_required? "+Ciph" : " (no Ciph)")
: "");
+ if (is_utran && !authentication_required)
+ LOGPFSML(fi, LOGL_ERROR,
+ "Authentication off on UTRAN network. Good luck.\n");
+
osmo_fsm_inst_dispatch(fi, VLR_ULA_E_UPDATE_LA, NULL);
return fi;
diff --git a/src/osmo-bsc/osmo_bsc_api.c b/src/osmo-bsc/osmo_bsc_api.c
index bac5e47..8c33e2b 100644
--- a/src/osmo-bsc/osmo_bsc_api.c
+++ b/src/osmo-bsc/osmo_bsc_api.c
@@ -536,7 +536,7 @@
.sapi_n_reject = bsc_sapi_n_reject,
.cipher_mode_compl = bsc_cipher_mode_compl,
.compl_l3 = bsc_compl_l3,
- .dtap = bsc_dtap,
+ .dtap = bsc_dtap,
.assign_compl = bsc_assign_compl,
.assign_fail = bsc_assign_fail,
.clear_request = bsc_clear_request,
diff --git a/src/osmo-nitb/Makefile.am b/src/osmo-msc/Makefile.am
similarity index 70%
rename from src/osmo-nitb/Makefile.am
rename to src/osmo-msc/Makefile.am
index a99334d..bd734d1 100644
--- a/src/osmo-nitb/Makefile.am
+++ b/src/osmo-msc/Makefile.am
@@ -14,6 +14,9 @@
$(LIBOSMOABIS_CFLAGS) \
$(LIBSMPP34_CFLAGS) \
$(LIBCRYPTO_CFLAGS) \
+ $(LIBOSMORANAP_CFLAGS) \
+ $(LIBASN1C_CFLAGS) \
+ $(LIBOSMOSIGTRAN_CFLAGS) \
$(NULL)
AM_LDFLAGS = \
@@ -21,20 +24,20 @@
$(NULL)
bin_PROGRAMS = \
- osmo-nitb \
+ osmo-msc \
$(NULL)
-osmo_nitb_SOURCES = \
- bsc_hack.c \
+osmo_msc_SOURCES = \
+ msc_main.c \
$(NULL)
-osmo_nitb_LDADD = \
- $(top_builddir)/src/libbsc/libbsc.a \
- $(top_builddir)/src/libcommon-cs/libcommon-cs.a \
+osmo_msc_LDADD = \
$(top_builddir)/src/libmsc/libmsc.a \
$(top_builddir)/src/libvlr/libvlr.a \
+ $(top_builddir)/src/libcommon-cs/libcommon-cs.a \
$(top_builddir)/src/libtrau/libtrau.a \
$(top_builddir)/src/libcommon/libcommon.a \
+ $(top_builddir)/src/libmgcp/libmgcp.a \
$(LIBOSMOGSM_LIBS) \
$(LIBOSMOVTY_LIBS) \
$(LIBOSMOCORE_LIBS) \
@@ -42,5 +45,13 @@
$(LIBOSMOABIS_LIBS) \
$(LIBSMPP34_LIBS) \
$(LIBCRYPTO_LIBS) \
+ $(LIBOSMOSIGTRAN_LIBS) \
-ldbi \
$(NULL)
+if BUILD_IU
+osmo_msc_LDADD += \
+ $(top_builddir)/src/libiu/libiu.a \
+ $(LIBOSMORANAP_LIBS) \
+ $(LIBASN1C_LIBS) \
+ $(NULL)
+endif
diff --git a/src/osmo-msc/msc_main.c b/src/osmo-msc/msc_main.c
new file mode 100644
index 0000000..4166159
--- /dev/null
+++ b/src/osmo-msc/msc_main.c
@@ -0,0 +1,514 @@
+/* OsmoMSC - Circuit-Switched Core Network (MSC+VLR+HLR+SMSC) implementation
+ */
+
+/* (C) 2016 by sysmocom s.f.m.c. GmbH <info@sysmocom.de>
+ * All Rights Reserved
+ *
+ * Based on OsmoNITB:
+ * (C) 2008-2010 by Harald Welte <laforge@gnumonks.org>
+ * (C) 2009-2012 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/>.
+ *
+ */
+
+#include <unistd.h>
+#include <time.h>
+#include <errno.h>
+#include <signal.h>
+#include <fcntl.h>
+#include <sys/stat.h>
+
+#define _GNU_SOURCE
+#include <getopt.h>
+
+/* build switches from the configure script */
+#include "../../bscconfig.h"
+
+#include <openbsc/db.h>
+#include <osmocom/core/application.h>
+#include <osmocom/core/select.h>
+#include <osmocom/core/stats.h>
+#include <openbsc/debug.h>
+#include <osmocom/abis/abis.h>
+#include <osmocom/abis/e1_input.h>
+#include <osmocom/core/talloc.h>
+#include <openbsc/signal.h>
+#include <openbsc/osmo_msc.h>
+#include <openbsc/bsc_msc_data.h>
+#include <openbsc/sms_queue.h>
+#include <osmocom/vty/telnet_interface.h>
+#include <osmocom/vty/ports.h>
+#include <osmocom/vty/logging.h>
+#include <openbsc/vty.h>
+#include <openbsc/bss.h>
+#include <openbsc/mncc.h>
+#include <openbsc/handover_decision.h>
+#include <openbsc/rrlp.h>
+#include <osmocom/ctrl/control_if.h>
+#include <osmocom/ctrl/control_vty.h>
+#include <osmocom/ctrl/ports.h>
+#include <openbsc/ctrl.h>
+#include <openbsc/osmo_bsc_rf.h>
+#include <openbsc/smpp.h>
+#include <openbsc/mgcpgw_client.h>
+
+#include <openbsc/msc_ifaces.h>
+
+#include <openbsc/iu.h>
+#include <openbsc/iucs.h>
+#include <openbsc/iucs_ranap.h>
+
+static const char * const osmomsc_copyright =
+ "OsmoMSC - Osmocom Circuit-Switched Core Network implementation\r\n"
+ "Copyright (C) 2016 by sysmocom s.f.m.c. GmbH <info@sysmocom.de>\r\n"
+ "Based on OsmoNITB:\r\n"
+ " (C) 2008-2010 by Harald Welte <laforge@gnumonks.org>\r\n"
+ " (C) 2009-2012 by Holger Hans Peter Freyther <zecke@selfish.org>\r\n"
+ "Contributions by Daniel Willmann, Jan Lübbe, Stefan Schmidt\r\n"
+ "Dieter Spaar, Andreas Eversberg, Sylvain Munaut, Neels Hofmeyr\r\n\r\n"
+ "License AGPLv3+: GNU AGPL version 3 or later <http://gnu.org/licenses/agpl-3.0.html>\r\n"
+ "This is free software: you are free to change and redistribute it.\r\n"
+ "There is NO WARRANTY, to the extent permitted by law.\r\n";
+
+void *tall_msc_ctx = NULL;
+
+/* satisfy deps from libbsc legacy.
+ TODO double check these */
+void *tall_fle_ctx = NULL;
+void *tall_paging_ctx = NULL;
+void *tall_map_ctx = NULL;
+void *tall_upq_ctx = NULL;
+/* end deps from libbsc legacy. */
+
+static struct {
+ const char *database_name;
+ const char *config_file;
+ int daemonize;
+ const char *mncc_sock_path;
+ int use_db_counter;
+} msc_cmdline_config = {
+ "sms.db",
+ "osmo-msc.cfg",
+ 0,
+ 0,
+ 1
+};
+
+/* timer to store statistics */
+#define DB_SYNC_INTERVAL 60, 0
+#define EXPIRE_INTERVAL 10, 0
+
+static struct osmo_timer_list db_sync_timer;
+
+static void create_pcap_file(char *file)
+{
+ mode_t mode = S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH;
+ int fd = open(file, O_WRONLY|O_TRUNC|O_CREAT, mode);
+
+ if (fd < 0) {
+ perror("Failed to open file for pcap");
+ return;
+ }
+
+ e1_set_pcap_fd(fd);
+}
+
+static void print_usage()
+{
+ printf("Usage: osmo-nitb\n");
+}
+
+static void print_help()
+{
+ printf(" Some useful help...\n");
+ printf(" -h --help This text.\n");
+ printf(" -d option --debug=DRLL:DCC:DMM:DRR:DRSL:DNM Enable debugging.\n");
+ printf(" -D --daemonize Fork the process into a background daemon.\n");
+ printf(" -c --config-file filename The config file to use.\n");
+ printf(" -s --disable-color\n");
+ printf(" -l --database db-name The database to use.\n");
+ printf(" -a --authorize-everyone Authorize every new subscriber. Dangerous!\n");
+ printf(" -T --timestamp Prefix every log line with a timestamp.\n");
+ printf(" -V --version Print the version of OpenBSC.\n");
+ printf(" -P --rtp-proxy Enable the RTP Proxy code inside OpenBSC.\n");
+ printf(" -e --log-level number Set a global loglevel.\n");
+ printf(" -M --mncc-sock-path PATH Disable built-in MNCC handler and offer socket.\n");
+ printf(" -m --mncc-sock Same as `-M /tmp/bsc_mncc' (deprecated).\n");
+ printf(" -C --no-dbcounter Disable regular syncing of counters to database.\n");
+ printf(" -r --rf-ctl PATH A unix domain socket to listen for cmds.\n");
+ printf(" -p --pcap PATH Write abis communication to pcap trace file.\n");
+}
+
+static void handle_options(int argc, char **argv)
+{
+ while (1) {
+ int option_index = 0, c;
+ static struct option long_options[] = {
+ {"help", 0, 0, 'h'},
+ {"debug", 1, 0, 'd'},
+ {"daemonize", 0, 0, 'D'},
+ {"config-file", 1, 0, 'c'},
+ {"disable-color", 0, 0, 's'},
+ {"database", 1, 0, 'l'},
+ {"authorize-everyone", 0, 0, 'a'},
+ {"pcap", 1, 0, 'p'},
+ {"timestamp", 0, 0, 'T'},
+ {"version", 0, 0, 'V' },
+ {"rtp-proxy", 0, 0, 'P'},
+ {"log-level", 1, 0, 'e'},
+ {"mncc-sock", 0, 0, 'm'},
+ {"mncc-sock-path", 1, 0, 'M'},
+ {"no-dbcounter", 0, 0, 'C'},
+ {0, 0, 0, 0}
+ };
+
+ c = getopt_long(argc, argv, "hd:Dsl:ap:TPVc:e:mCM:",
+ long_options, &option_index);
+ if (c == -1)
+ break;
+
+ switch (c) {
+ case 'h':
+ print_usage();
+ print_help();
+ exit(0);
+ case 's':
+ log_set_use_color(osmo_stderr_target, 0);
+ break;
+ case 'd':
+ log_parse_category_mask(osmo_stderr_target, optarg);
+ break;
+ case 'D':
+ msc_cmdline_config.daemonize = 1;
+ break;
+ case 'l':
+ msc_cmdline_config.database_name = optarg;
+ break;
+ case 'c':
+ msc_cmdline_config.config_file = optarg;
+ break;
+ case 'p':
+ create_pcap_file(optarg);
+ break;
+ case 'T':
+ log_set_print_timestamp(osmo_stderr_target, 1);
+ break;
+#if BEFORE_MSCSPLIT
+ case 'P':
+ ipacc_rtp_direct = 0;
+ break;
+#endif
+ case 'e':
+ log_set_log_level(osmo_stderr_target, atoi(optarg));
+ break;
+ case 'M':
+ msc_cmdline_config.mncc_sock_path = optarg;
+ break;
+ case 'm':
+ msc_cmdline_config.mncc_sock_path = "/tmp/bsc_mncc";
+ break;
+ case 'C':
+ msc_cmdline_config.use_db_counter = 0;
+ break;
+ case 'V':
+ print_version(1);
+ exit(0);
+ break;
+ default:
+ /* catch unknown options *as well as* missing arguments. */
+ fprintf(stderr, "Error in command line options. Exiting.\n");
+ exit(-1);
+ }
+ }
+}
+
+struct gsm_network *msc_network_alloc(void *ctx,
+ mncc_recv_cb_t mncc_recv)
+{
+ struct gsm_network *net = gsm_network_init(ctx, 1, 1, mncc_recv);
+ if (!net)
+ return NULL;
+
+ net->name_long = talloc_strdup(net, "OsmoMSC");
+ net->name_short = talloc_strdup(net, "OsmoMSC");
+
+ net->gsup_server_addr_str = talloc_strdup(net,
+ MSC_HLR_REMOTE_IP_DEFAULT);
+ net->gsup_server_port = MSC_HLR_REMOTE_PORT_DEFAULT;
+
+ mgcpgw_client_conf_init(&net->mgcpgw.conf);
+
+ return net;
+}
+
+void msc_network_shutdown(struct gsm_network *net)
+{
+ /* nothing here yet */
+}
+
+static struct gsm_network *msc_network = NULL;
+
+extern void *tall_vty_ctx;
+static void signal_handler(int signal)
+{
+ fprintf(stdout, "signal %u received\n", signal);
+
+ switch (signal) {
+ case SIGINT:
+ msc_network_shutdown(msc_network);
+ osmo_signal_dispatch(SS_L_GLOBAL, S_L_GLOBAL_SHUTDOWN, NULL);
+ sleep(3);
+ exit(0);
+ break;
+ case SIGABRT:
+ osmo_generate_backtrace();
+ /* in case of abort, we want to obtain a talloc report
+ * and then return to the caller, who will abort the process */
+ case SIGUSR1:
+ talloc_report(tall_vty_ctx, stderr);
+ talloc_report_full(tall_msc_ctx, stderr);
+ break;
+ case SIGUSR2:
+ talloc_report_full(tall_vty_ctx, stderr);
+ break;
+ default:
+ break;
+ }
+}
+
+/* timer handling */
+static int _db_store_counter(struct osmo_counter *counter, void *data)
+{
+ return db_store_counter(counter);
+}
+
+static void db_sync_timer_cb(void *data)
+{
+ /* store counters to database and re-schedule */
+ osmo_counters_for_each(_db_store_counter, NULL);
+ osmo_timer_schedule(&db_sync_timer, DB_SYNC_INTERVAL);
+}
+
+extern int bsc_vty_go_parent(struct vty *vty);
+
+static struct vty_app_info msc_vty_info = {
+ .name = "OsmoMSC",
+ .version = PACKAGE_VERSION,
+ .go_parent_cb = bsc_vty_go_parent,
+ .is_config_node = bsc_vty_is_config_node,
+};
+
+static int rcvmsg_iu_cs(struct msgb *msg, struct gprs_ra_id *ra_id,
+ uint16_t *sai)
+{
+ DEBUGP(DIUCS, "got IuCS message"
+ " %d bytes: %s\n",
+ msg->len, osmo_hexdump(msg->data, msg->len));
+ if (ra_id) {
+ DEBUGP(DIUCS, "got IuCS message on"
+ " MNC %d MCC %d LAC %d RAC %d\n",
+ ra_id->mnc, ra_id->mcc, ra_id->lac, ra_id->rac);
+ }
+
+ return gsm0408_rcvmsg_iucs(msc_network, msg, ra_id? &ra_id->lac : NULL);
+}
+
+static int rx_iu_event(struct ue_conn_ctx *ctx, enum iu_event_type type,
+ void *data)
+{
+ DEBUGP(DIUCS, "got IuCS event %u: %s\n", type,
+ iu_event_type_str(type));
+
+ return iucs_rx_ranap_event(msc_network, ctx, type, data);
+}
+
+int main(int argc, char **argv)
+{
+ int rc;
+
+ msc_vty_info.copyright = osmomsc_copyright;
+
+ tall_msc_ctx = talloc_named_const(NULL, 1, "osmo_msc");
+ talloc_ctx_init(tall_msc_ctx);
+
+ osmo_init_logging(&log_info);
+ osmo_stats_init(tall_msc_ctx);
+
+ /* For --version, vty_init() must be called before handling options */
+ vty_init(&msc_vty_info);
+
+ /* Parse options */
+ handle_options(argc, argv);
+
+ /* Allocate global gsm_network struct; choose socket/internal MNCC */
+ msc_network = msc_network_alloc(tall_msc_ctx,
+ msc_cmdline_config.mncc_sock_path?
+ mncc_sock_from_cc
+ : int_mncc_recv);
+ if (!msc_network)
+ return -ENOMEM;
+
+ if (msc_vlr_alloc(msc_network)) {
+ fprintf(stderr, "Failed to allocate VLR\n");
+ exit(1);
+ }
+
+ ctrl_vty_init(tall_msc_ctx);
+ logging_vty_add_cmds(&log_info);
+ msc_vty_init(msc_network);
+ bsc_vty_init_extra();
+
+#ifdef BUILD_SMPP
+ if (smpp_openbsc_alloc_init(tall_msc_ctx) < 0)
+ return -1;
+#endif
+
+ /*
+ * For osmo-nitb, skip TCH/F for now, because otherwise dyn TS
+ * always imply the possibility to have a mix of TCH/F and
+ * TCH/H channels; if two phones request a TCH/F and a TCH/H,
+ * respectively, they cannot call each other. If we deny TCH/F,
+ * they will both fall back to TCH/H, and dynamic channels are
+ * usable. See OS#1778.
+ *
+ * A third-party MSC may well be able to handle a TCH/H TCH/F
+ * mismatch. Moreover, this option may be overwritten in the
+ * config file or in VTY.
+ */
+ msc_network->dyn_ts_allow_tch_f = false;
+
+ rc = vty_read_config_file(msc_cmdline_config.config_file, NULL);
+ if (rc < 0) {
+ LOGP(DNM, LOGL_FATAL, "Failed to parse the config file: '%s'\n",
+ msc_cmdline_config.config_file);
+ return 1;
+ }
+
+ /* Initialize MNCC socket if appropriate */
+ if (msc_cmdline_config.mncc_sock_path) {
+ rc = mncc_sock_init(msc_network,
+ msc_cmdline_config.mncc_sock_path);
+ if (rc) {
+ fprintf(stderr, "MNCC socket initialization failed. exiting.\n");
+ exit(1);
+ }
+ } else
+ DEBUGP(DMNCC, "Using internal MNCC handler.\n");
+
+ /* start telnet after reading config for vty_get_bind_addr() */
+ rc = telnet_init_dynif(tall_msc_ctx, &msc_network,
+ vty_get_bind_addr(), OSMO_VTY_PORT_MSC);
+ if (rc < 0)
+ return 2;
+
+ /* BSC stuff is to be split behind an A-interface to be used with
+ * OsmoBSC, but there is no need to remove it yet. Most of the
+ * following code until iu_init() is legacy. */
+
+#ifdef BUILD_SMPP
+ smpp_openbsc_start(msc_network);
+#endif
+
+ /* start control interface after reading config for
+ * ctrl_vty_get_bind_addr() */
+ msc_network->ctrl = ctrl_interface_setup_dynip(msc_network, ctrl_vty_get_bind_addr(),
+ OSMO_CTRL_PORT_MSC, NULL);
+ if (!msc_network->ctrl) {
+ printf("Failed to initialize control interface. Exiting.\n");
+ return -1;
+ }
+
+#if 0
+TODO: we probably want some of the _net_ ctrl commands from bsc_base_ctrl_cmds_install().
+ if (bsc_base_ctrl_cmds_install() != 0) {
+ printf("Failed to initialize the BSC control commands.\n");
+ return -1;
+ }
+#endif
+
+ if (msc_ctrl_cmds_install(msc_network) != 0) {
+ printf("Failed to initialize the MSC control commands.\n");
+ return -1;
+ }
+
+ /* seed the PRNG */
+ srand(time(NULL));
+ /* TODO: is this used for crypto?? Improve randomness, at least we
+ * should try to use the nanoseconds part of the current time. */
+
+ if (db_init(msc_cmdline_config.database_name)) {
+ printf("DB: Failed to init database: %s\n",
+ msc_cmdline_config.database_name);
+ return 4;
+ }
+
+ osmo_fsm_log_addr(true);
+ if (msc_vlr_start(msc_network)) {
+ fprintf(stderr, "Failed to start VLR\n");
+ exit(1);
+ }
+
+ msc_subscr_conn_init();
+
+ if (db_prepare()) {
+ printf("DB: Failed to prepare database.\n");
+ return 5;
+ }
+
+ /* setup the timer */
+ osmo_timer_setup(&db_sync_timer, db_sync_timer_cb, NULL);
+ if (msc_cmdline_config.use_db_counter)
+ osmo_timer_schedule(&db_sync_timer, DB_SYNC_INTERVAL);
+
+ signal(SIGINT, &signal_handler);
+ signal(SIGABRT, &signal_handler);
+ signal(SIGUSR1, &signal_handler);
+ signal(SIGUSR2, &signal_handler);
+ osmo_init_ignore_signals();
+
+ /* start the SMS queue */
+ if (sms_queue_start(msc_network, 20) != 0)
+ return -1;
+
+ msc_network->mgcpgw.client = mgcpgw_client_init(
+ msc_network, &msc_network->mgcpgw.conf);
+
+ if (mgcpgw_client_connect(msc_network->mgcpgw.client)) {
+ printf("MGCPGW connect failed\n");
+ return 7;
+ }
+
+ /* Set up A-Interface */
+ /* TODO: implement A-Interface and remove above legacy stuff. */
+
+#ifdef BUILD_IU
+ /* Set up IuCS */
+ iu_init(tall_msc_ctx, "127.0.0.1", 14001, rcvmsg_iu_cs, rx_iu_event);
+#endif
+
+ if (msc_cmdline_config.daemonize) {
+ rc = osmo_daemonize();
+ if (rc < 0) {
+ perror("Error during daemonize");
+ return 6;
+ }
+ }
+
+ while (1) {
+ log_reset_context();
+ osmo_select_main(0);
+ }
+}
diff --git a/src/osmo-nitb/bsc_hack.c b/src/osmo-nitb/bsc_hack.c
deleted file mode 100644
index 21585e5..0000000
--- a/src/osmo-nitb/bsc_hack.c
+++ /dev/null
@@ -1,412 +0,0 @@
-/* A hackish minimal BSC (+MSC +HLR) implementation */
-
-/* (C) 2008-2010 by Harald Welte <laforge@gnumonks.org>
- * (C) 2009-2012 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/>.
- *
- */
-
-#include <unistd.h>
-#include <time.h>
-#include <errno.h>
-#include <signal.h>
-#include <fcntl.h>
-#include <sys/stat.h>
-
-#define _GNU_SOURCE
-#include <getopt.h>
-
-#include <openbsc/db.h>
-#include <osmocom/core/application.h>
-#include <osmocom/core/select.h>
-#include <osmocom/core/stats.h>
-#include <openbsc/debug.h>
-#include <osmocom/abis/abis.h>
-#include <osmocom/abis/e1_input.h>
-#include <osmocom/core/talloc.h>
-#include <openbsc/signal.h>
-#include <openbsc/osmo_msc.h>
-#include <openbsc/bsc_msc_data.h>
-#include <openbsc/sms_queue.h>
-#include <openbsc/vty.h>
-#include <openbsc/bss.h>
-#include <openbsc/mncc.h>
-#include <openbsc/handover_decision.h>
-#include <openbsc/rrlp.h>
-#include <osmocom/ctrl/control_if.h>
-#include <osmocom/ctrl/ports.h>
-#include <osmocom/ctrl/control_vty.h>
-#include <openbsc/ctrl.h>
-#include <openbsc/osmo_bsc_rf.h>
-#include <openbsc/smpp.h>
-
-#include "../../bscconfig.h"
-
-/* MCC and MNC for the Location Area Identifier */
-struct gsm_network *bsc_gsmnet = 0;
-static const char *database_name = "sms.db";
-static const char *config_file = "openbsc.cfg";
-static const char *rf_ctrl_path = NULL;
-extern const char *openbsc_copyright;
-static int daemonize = 0;
-static const char *mncc_sock_path = NULL;
-static int use_db_counter = 1;
-
-/* timer to store statistics */
-#define DB_SYNC_INTERVAL 60, 0
-#define EXPIRE_INTERVAL 10, 0
-
-static struct osmo_timer_list db_sync_timer;
-
-static void create_pcap_file(char *file)
-{
- mode_t mode = S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH;
- int fd = open(file, O_WRONLY|O_TRUNC|O_CREAT, mode);
-
- if (fd < 0) {
- perror("Failed to open file for pcap");
- return;
- }
-
- e1_set_pcap_fd(fd);
-}
-
-static void print_usage()
-{
- printf("Usage: osmo-nitb\n");
-}
-
-static void print_help()
-{
- printf(" Some useful help...\n");
- printf(" -h --help This text.\n");
- printf(" -d option --debug=DRLL:DCC:DMM:DRR:DRSL:DNM Enable debugging.\n");
- printf(" -D --daemonize Fork the process into a background daemon.\n");
- printf(" -c --config-file filename The config file to use.\n");
- printf(" -s --disable-color\n");
- printf(" -l --database db-name The database to use.\n");
- printf(" -a --authorize-everyone Authorize every new subscriber. Dangerous!\n");
- printf(" -T --timestamp Prefix every log line with a timestamp.\n");
- printf(" -V --version Print the version of OpenBSC.\n");
- printf(" -P --rtp-proxy Enable the RTP Proxy code inside OpenBSC.\n");
- printf(" -e --log-level number Set a global loglevel.\n");
- printf(" -M --mncc-sock-path PATH Disable built-in MNCC handler and offer socket.\n");
- printf(" -m --mncc-sock Same as `-M /tmp/bsc_mncc' (deprecated).\n");
- printf(" -C --no-dbcounter Disable regular syncing of counters to database.\n");
- printf(" -r --rf-ctl PATH A unix domain socket to listen for cmds.\n");
- printf(" -p --pcap PATH Write abis communication to pcap trace file.\n");
-}
-
-static void handle_options(int argc, char **argv)
-{
- while (1) {
- int option_index = 0, c;
- static struct option long_options[] = {
- {"help", 0, 0, 'h'},
- {"debug", 1, 0, 'd'},
- {"daemonize", 0, 0, 'D'},
- {"config-file", 1, 0, 'c'},
- {"disable-color", 0, 0, 's'},
- {"database", 1, 0, 'l'},
- {"authorize-everyone", 0, 0, 'a'},
- {"pcap", 1, 0, 'p'},
- {"timestamp", 0, 0, 'T'},
- {"version", 0, 0, 'V' },
- {"rtp-proxy", 0, 0, 'P'},
- {"log-level", 1, 0, 'e'},
- {"mncc-sock", 0, 0, 'm'},
- {"mncc-sock-path", 1, 0, 'M'},
- {"no-dbcounter", 0, 0, 'C'},
- {"rf-ctl", 1, 0, 'r'},
- {0, 0, 0, 0}
- };
-
- c = getopt_long(argc, argv, "hd:Dsl:ar:p:TPVc:e:mCr:M:",
- long_options, &option_index);
- if (c == -1)
- break;
-
- switch (c) {
- case 'h':
- print_usage();
- print_help();
- exit(0);
- case 's':
- log_set_use_color(osmo_stderr_target, 0);
- break;
- case 'd':
- log_parse_category_mask(osmo_stderr_target, optarg);
- break;
- case 'D':
- daemonize = 1;
- break;
- case 'l':
- database_name = optarg;
- break;
- case 'c':
- config_file = optarg;
- break;
- case 'p':
- create_pcap_file(optarg);
- break;
- case 'T':
- log_set_print_timestamp(osmo_stderr_target, 1);
- break;
- case 'P':
- ipacc_rtp_direct = 0;
- break;
- case 'e':
- log_set_log_level(osmo_stderr_target, atoi(optarg));
- break;
- case 'M':
- mncc_sock_path = optarg;
- break;
- case 'm':
- mncc_sock_path = "/tmp/bsc_mncc";
- break;
- case 'C':
- use_db_counter = 0;
- break;
- case 'V':
- print_version(1);
- exit(0);
- break;
- case 'r':
- rf_ctrl_path = optarg;
- break;
- default:
- /* catch unknown options *as well as* missing arguments. */
- fprintf(stderr, "Error in command line options. Exiting.\n");
- exit(-1);
- break;
- }
- }
-}
-
-extern void *tall_vty_ctx;
-static void signal_handler(int signal)
-{
- fprintf(stdout, "signal %u received\n", signal);
-
- switch (signal) {
- case SIGINT:
- bsc_shutdown_net(bsc_gsmnet);
- osmo_signal_dispatch(SS_L_GLOBAL, S_L_GLOBAL_SHUTDOWN, NULL);
- sleep(3);
- exit(0);
- break;
- case SIGABRT:
- osmo_generate_backtrace();
- /* in case of abort, we want to obtain a talloc report
- * and then return to the caller, who will abort the process */
- case SIGUSR1:
- talloc_report(tall_vty_ctx, stderr);
- talloc_report_full(tall_bsc_ctx, stderr);
- break;
- case SIGUSR2:
- talloc_report_full(tall_vty_ctx, stderr);
- break;
- default:
- break;
- }
-}
-
-/* timer handling */
-static int _db_store_counter(struct osmo_counter *counter, void *data)
-{
- return db_store_counter(counter);
-}
-
-static void db_sync_timer_cb(void *data)
-{
- /* store counters to database and re-schedule */
- osmo_counters_for_each(_db_store_counter, NULL);
- osmo_timer_schedule(&db_sync_timer, DB_SYNC_INTERVAL);
-}
-
-static void subscr_expire_cb(void *data)
-{
- /* TODO expire vlr_subscrs? */
- osmo_timer_schedule(&bsc_gsmnet->subscr_expire_timer, EXPIRE_INTERVAL);
-}
-
-extern int bsc_vty_go_parent(struct vty *vty);
-
-static struct vty_app_info vty_info = {
- .name = "OpenBSC",
- .version = PACKAGE_VERSION,
- .go_parent_cb = bsc_vty_go_parent,
- .is_config_node = bsc_vty_is_config_node,
-};
-
-int main(int argc, char **argv)
-{
- int rc;
-
- vty_info.copyright = openbsc_copyright;
-
- tall_bsc_ctx = talloc_named_const(NULL, 1, "openbsc");
- talloc_ctx_init(tall_bsc_ctx);
- on_dso_load_rrlp();
- on_dso_load_ho_dec();
-
- libosmo_abis_init(tall_bsc_ctx);
- osmo_init_logging(&log_info);
- osmo_stats_init(tall_bsc_ctx);
- bts_init();
- vty_init(&vty_info);
-
- /* Parse options */
- handle_options(argc, argv);
-
- /* Allocate global gsm_network struct; choose socket/internal MNCC */
- rc = bsc_network_alloc(mncc_sock_path?
- mncc_sock_from_cc : int_mncc_recv);
- if (rc) {
- fprintf(stderr, "Allocation failed. Exiting.\n");
- exit(1);
- }
-
- /* Initialize VTY */
- bsc_vty_init(bsc_gsmnet);
- ctrl_vty_init(tall_bsc_ctx);
- if (msc_vlr_alloc(bsc_gsmnet)) {
- fprintf(stderr, "Failed to allocate VLR\n");
- exit(1);
- }
-
-#ifdef BUILD_SMPP
- if (smpp_openbsc_alloc_init(tall_bsc_ctx) < 0)
- return -1;
-#endif
-
- /* Initialize MNCC socket if appropriate */
- if (mncc_sock_path) {
- rc = mncc_sock_init(bsc_gsmnet, mncc_sock_path);
- if (rc) {
- fprintf(stderr, "MNCC socket initialization failed. exiting.\n");
- exit(1);
- }
- } else
- DEBUGP(DMNCC, "Using internal MNCC handler.\n");
-
- /*
- * For osmo-nitb, skip TCH/F for now, because otherwise dyn TS
- * always imply the possibility to have a mix of TCH/F and
- * TCH/H channels; if two phones request a TCH/F and a TCH/H,
- * respectively, they cannot call each other. If we deny TCH/F,
- * they will both fall back to TCH/H, and dynamic channels are
- * usable. See OS#1778.
- *
- * A third-party MSC may well be able to handle a TCH/H TCH/F
- * mismatch. Moreover, this option may be overwritten in the
- * config file or in VTY.
- */
- bsc_gsmnet->dyn_ts_allow_tch_f = false;
-
- /* Read the config */
- rc = bsc_network_configure(config_file);
- if (rc < 0) {
- fprintf(stderr, "Reading config failed. Exiting.\n");
- exit(1);
- }
-
-#ifdef BUILD_SMPP
- smpp_openbsc_start(bsc_gsmnet);
-#endif
- bsc_api_init(bsc_gsmnet, msc_bsc_api());
-
- /* start control interface after reading config for
- * ctrl_vty_get_bind_addr() */
- bsc_gsmnet->ctrl = bsc_controlif_setup(bsc_gsmnet,
- ctrl_vty_get_bind_addr(),
- OSMO_CTRL_PORT_NITB_BSC);
- if (!bsc_gsmnet->ctrl) {
- printf("Failed to initialize control interface. Exiting.\n");
- return -1;
- }
-
- if (bsc_base_ctrl_cmds_install() != 0) {
- printf("Failed to initialize the BSC control commands.\n");
- return -1;
- }
-
- if (msc_ctrl_cmds_install(bsc_gsmnet) != 0) {
- printf("Failed to initialize the MSC control commands.\n");
- return -1;
- }
-
- /* seed the PRNG */
- srand(time(NULL));
-
- bsc_gsmnet->bsc_data->rf_ctrl = osmo_bsc_rf_create(rf_ctrl_path, bsc_gsmnet);
- if (!bsc_gsmnet->bsc_data->rf_ctrl) {
- fprintf(stderr, "Failed to create the RF service.\n");
- exit(1);
- }
-
- osmo_fsm_log_addr(true);
- if (msc_vlr_start(bsc_gsmnet)) {
- fprintf(stderr, "Failed to start VLR\n");
- exit(1);
- }
-
- msc_subscr_conn_init();
-
- if (db_init(database_name)) {
- printf("DB: Failed to init database. Please check the option settings.\n");
- return -1;
- }
- printf("DB: Database initialized.\n");
-
- if (db_prepare()) {
- printf("DB: Failed to prepare database.\n");
- return -1;
- }
- printf("DB: Database prepared.\n");
-
- /* setup the timer */
- osmo_timer_setup(&db_sync_timer, db_sync_timer_cb, NULL);
- if (use_db_counter)
- osmo_timer_schedule(&db_sync_timer, DB_SYNC_INTERVAL);
-
- osmo_timer_setup(&bsc_gsmnet->subscr_expire_timer, subscr_expire_cb,
- NULL);
- osmo_timer_schedule(&bsc_gsmnet->subscr_expire_timer, EXPIRE_INTERVAL);
-
- signal(SIGINT, &signal_handler);
- signal(SIGABRT, &signal_handler);
- signal(SIGUSR1, &signal_handler);
- signal(SIGUSR2, &signal_handler);
- osmo_init_ignore_signals();
-
- /* start the SMS queue */
- if (sms_queue_start(bsc_gsmnet, 20) != 0)
- return -1;
-
- if (daemonize) {
- rc = osmo_daemonize();
- if (rc < 0) {
- perror("Error during daemonize");
- exit(1);
- }
- }
-
- while (1) {
- log_reset_context();
- osmo_select_main(0);
- }
-}