<p>Harald Welte <strong>merged</strong> this change.</p><p><a href="https://gerrit.osmocom.org/10250">View Change</a></p><div style="white-space:pre-wrap">Approvals:
Jenkins Builder: Verified
Harald Welte: Looks good to me, approved
</div><pre style="font-family: monospace,monospace; white-space: pre-wrap;">Add osmo-euse-demo as minimalistic test of a External USSD (EUSE) handler<br><br>This is a small program which simply echo's the USSD request message it<br>gets in a quote back to the sender. Its purpose is to illustrate how<br>EUSEs can be implemented using libosmo-gsup-client.<br><br>Change-Id: I3fb8554ca329cb609c591058254117006f665e73<br>---<br>M src/Makefile.am<br>A src/osmo-euse-demo.c<br>2 files changed, 253 insertions(+), 0 deletions(-)<br><br></pre><pre style="font-family: monospace,monospace; white-space: pre-wrap;"><span>diff --git a/src/Makefile.am b/src/Makefile.am</span><br><span>index c531ed3..4f167f0 100644</span><br><span>--- a/src/Makefile.am</span><br><span>+++ b/src/Makefile.am</span><br><span>@@ -10,6 +10,9 @@</span><br><span> $(SQLITE3_CFLAGS) \</span><br><span> $(NULL)</span><br><span> </span><br><span style="color: hsl(120, 100%, 40%);">+AM_CPPFLAGS = -I$(top_srcdir)/include \</span><br><span style="color: hsl(120, 100%, 40%);">+ $(NULL)</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span> EXTRA_DIST = \</span><br><span> populate_hlr_db.pl \</span><br><span> db_bootstrap.sed \</span><br><span>@@ -39,6 +42,7 @@</span><br><span> bin_PROGRAMS = \</span><br><span> osmo-hlr \</span><br><span> osmo-hlr-db-tool \</span><br><span style="color: hsl(120, 100%, 40%);">+ osmo-euse-demo \</span><br><span> $(NULL)</span><br><span> </span><br><span> osmo_hlr_SOURCES = \</span><br><span>@@ -98,6 +102,16 @@</span><br><span> $(SQLITE3_LIBS) \</span><br><span> $(NULL)</span><br><span> </span><br><span style="color: hsl(120, 100%, 40%);">+osmo_euse_demo_SOURCES = \</span><br><span style="color: hsl(120, 100%, 40%);">+ osmo-euse-demo.c \</span><br><span style="color: hsl(120, 100%, 40%);">+ $(NULL)</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+osmo_euse_demo_LDADD = \</span><br><span style="color: hsl(120, 100%, 40%);">+ $(top_builddir)/src/gsupclient/libosmo-gsup-client.la \</span><br><span style="color: hsl(120, 100%, 40%);">+ $(LIBOSMOCORE_LIBS) \</span><br><span style="color: hsl(120, 100%, 40%);">+ $(LIBOSMOGSM_LIBS) \</span><br><span style="color: hsl(120, 100%, 40%);">+ $(NULL)</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span> BOOTSTRAP_SQL = $(top_srcdir)/sql/hlr.sql</span><br><span> </span><br><span> db_bootstrap.h: $(BOOTSTRAP_SQL) $(srcdir)/db_bootstrap.sed</span><br><span>diff --git a/src/osmo-euse-demo.c b/src/osmo-euse-demo.c</span><br><span>new file mode 100644</span><br><span>index 0000000..4e4ef78</span><br><span>--- /dev/null</span><br><span>+++ b/src/osmo-euse-demo.c</span><br><span>@@ -0,0 +1,239 @@</span><br><span style="color: hsl(120, 100%, 40%);">+/* osmo-demo-euse: An External USSD Entity (EUSE) for demo purpose */</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+/* (C) 2018 by Harald Welte <laforge@gnumonks.org></span><br><span style="color: hsl(120, 100%, 40%);">+ *</span><br><span style="color: hsl(120, 100%, 40%);">+ * All Rights Reserved</span><br><span style="color: hsl(120, 100%, 40%);">+ *</span><br><span style="color: hsl(120, 100%, 40%);">+ * This program is free software; you can redistribute it and/or modify</span><br><span style="color: hsl(120, 100%, 40%);">+ * it under the terms of the GNU Affero General Public License as published by</span><br><span style="color: hsl(120, 100%, 40%);">+ * the Free Software Foundation; either version 3 of the License, or</span><br><span style="color: hsl(120, 100%, 40%);">+ * (at your option) any later version.</span><br><span style="color: hsl(120, 100%, 40%);">+ *</span><br><span style="color: hsl(120, 100%, 40%);">+ * This program is distributed in the hope that it will be useful,</span><br><span style="color: hsl(120, 100%, 40%);">+ * but WITHOUT ANY WARRANTY; without even the implied warranty of</span><br><span style="color: hsl(120, 100%, 40%);">+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span><br><span style="color: hsl(120, 100%, 40%);">+ * GNU Affero General Public License for more details.</span><br><span style="color: hsl(120, 100%, 40%);">+ *</span><br><span style="color: hsl(120, 100%, 40%);">+ * You should have received a copy of the GNU Affero General Public License</span><br><span style="color: hsl(120, 100%, 40%);">+ * along with this program. If not, see <http://www.gnu.org/licenses/>.</span><br><span style="color: hsl(120, 100%, 40%);">+ */</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+/*</span><br><span style="color: hsl(120, 100%, 40%);">+ * This program illustrates how to implement an external USSD application using</span><br><span style="color: hsl(120, 100%, 40%);">+ * the existing osmocom libraries, particularly libosmocore, libosmogsm and libosmo-gsup-client.</span><br><span style="color: hsl(120, 100%, 40%);">+ *</span><br><span style="color: hsl(120, 100%, 40%);">+ * It will receive any MS-originated USSD message that is routed to it via the HLR, and</span><br><span style="color: hsl(120, 100%, 40%);">+ * simply respond it quoted in the following string: 'You sent "foobar"' (assuming the original</span><br><span style="color: hsl(120, 100%, 40%);">+ * message was 'foobar').</span><br><span style="color: hsl(120, 100%, 40%);">+ */</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+#include <string.h></span><br><span style="color: hsl(120, 100%, 40%);">+#include <stdio.h></span><br><span style="color: hsl(120, 100%, 40%);">+#include <errno.h></span><br><span style="color: hsl(120, 100%, 40%);">+#include <signal.h></span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+#include <osmocom/core/msgb.h></span><br><span style="color: hsl(120, 100%, 40%);">+#include <osmocom/core/select.h></span><br><span style="color: hsl(120, 100%, 40%);">+#include <osmocom/core/application.h></span><br><span style="color: hsl(120, 100%, 40%);">+#include <osmocom/core/utils.h></span><br><span style="color: hsl(120, 100%, 40%);">+#include <osmocom/core/logging.h></span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+#include <osmocom/gsm/gsup.h></span><br><span style="color: hsl(120, 100%, 40%);">+#include <osmocom/gsm/gsm0480.h></span><br><span style="color: hsl(120, 100%, 40%);">+#include <osmocom/gsm/protocol/gsm_04_80.h></span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+#include <osmocom/gsupclient/gsup_client.h></span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+#include "logging.h"</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+static struct osmo_gsup_client *g_gc;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+/*! send a SS/USSD response to a given imsi/session.</span><br><span style="color: hsl(120, 100%, 40%);">+ * \param[in] gsupc GSUP client connection through which to send</span><br><span style="color: hsl(120, 100%, 40%);">+ * \param[in] imsi IMSI of the subscriber</span><br><span style="color: hsl(120, 100%, 40%);">+ * \param[in] session_id Unique identifier of SS session for which this response is</span><br><span style="color: hsl(120, 100%, 40%);">+ * \param[in] gsup_msg_type GSUP message type (OSMO_GSUP_MSGT_PROC_SS_{REQUEST,RESULT,ERROR})</span><br><span style="color: hsl(120, 100%, 40%);">+ * \param[in] final Is this the final result (true=END) or an intermediate result (false=CONTINUE)</span><br><span style="color: hsl(120, 100%, 40%);">+ * \param[in] msg Optional binary/BER encoded SS date (for FACILITY IE). Can be NULL. Freed in</span><br><span style="color: hsl(120, 100%, 40%);">+ * this function call.</span><br><span style="color: hsl(120, 100%, 40%);">+ */</span><br><span style="color: hsl(120, 100%, 40%);">+static int euse_tx_ss(struct osmo_gsup_client *gsupc, const char *imsi, uint32_t session_id,</span><br><span style="color: hsl(120, 100%, 40%);">+ enum osmo_gsup_message_type gsup_msg_type, bool final, struct msgb *ss_msg)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ struct osmo_gsup_message resp = {0};</span><br><span style="color: hsl(120, 100%, 40%);">+ struct msgb *resp_msg;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ switch (gsup_msg_type) {</span><br><span style="color: hsl(120, 100%, 40%);">+ case OSMO_GSUP_MSGT_PROC_SS_REQUEST:</span><br><span style="color: hsl(120, 100%, 40%);">+ case OSMO_GSUP_MSGT_PROC_SS_RESULT:</span><br><span style="color: hsl(120, 100%, 40%);">+ case OSMO_GSUP_MSGT_PROC_SS_ERROR:</span><br><span style="color: hsl(120, 100%, 40%);">+ break;</span><br><span style="color: hsl(120, 100%, 40%);">+ default:</span><br><span style="color: hsl(120, 100%, 40%);">+ msgb_free(ss_msg);</span><br><span style="color: hsl(120, 100%, 40%);">+ return -EINVAL;</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ resp.message_type = gsup_msg_type;</span><br><span style="color: hsl(120, 100%, 40%);">+ OSMO_STRLCPY_ARRAY(resp.imsi, imsi);</span><br><span style="color: hsl(120, 100%, 40%);">+ if (final)</span><br><span style="color: hsl(120, 100%, 40%);">+ resp.session_state = OSMO_GSUP_SESSION_STATE_END;</span><br><span style="color: hsl(120, 100%, 40%);">+ else</span><br><span style="color: hsl(120, 100%, 40%);">+ resp.session_state = OSMO_GSUP_SESSION_STATE_CONTINUE;</span><br><span style="color: hsl(120, 100%, 40%);">+ resp.session_id = session_id;</span><br><span style="color: hsl(120, 100%, 40%);">+ if (ss_msg) {</span><br><span style="color: hsl(120, 100%, 40%);">+ resp.ss_info = msgb_data(ss_msg);</span><br><span style="color: hsl(120, 100%, 40%);">+ resp.ss_info_len = msgb_length(ss_msg);</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ resp_msg = gsm0480_msgb_alloc_name(__func__);</span><br><span style="color: hsl(120, 100%, 40%);">+ OSMO_ASSERT(resp_msg);</span><br><span style="color: hsl(120, 100%, 40%);">+ osmo_gsup_encode(resp_msg, &resp);</span><br><span style="color: hsl(120, 100%, 40%);">+ msgb_free(ss_msg);</span><br><span style="color: hsl(120, 100%, 40%);">+ return osmo_gsup_client_send(gsupc, resp_msg);</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+/*! send a SS/USSD reject to a given IMSI/session.</span><br><span style="color: hsl(120, 100%, 40%);">+ * \param[in] gsupc GSUP client connection through which to send</span><br><span style="color: hsl(120, 100%, 40%);">+ * \param[in] imsi IMSI of the subscriber</span><br><span style="color: hsl(120, 100%, 40%);">+ * \param[in] session_id Unique identifier of SS session for which this response is</span><br><span style="color: hsl(120, 100%, 40%);">+ * \param[in] invoke_id InvokeID of the request</span><br><span style="color: hsl(120, 100%, 40%);">+ * \param[in] problem_tag Problem code tag (table 3.13)</span><br><span style="color: hsl(120, 100%, 40%);">+ * \param[in] problem_code Problem code (table 3.14-3.17)</span><br><span style="color: hsl(120, 100%, 40%);">+ */</span><br><span style="color: hsl(120, 100%, 40%);">+static int euse_tx_ussd_reject(struct osmo_gsup_client *gsupc, const char *imsi, uint32_t session_id,</span><br><span style="color: hsl(120, 100%, 40%);">+ int invoke_id, uint8_t problem_tag, uint8_t problem_code)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ struct msgb *msg = gsm0480_gen_reject(invoke_id, problem_tag, problem_code);</span><br><span style="color: hsl(120, 100%, 40%);">+ LOGP(DMAIN, LOGL_NOTICE, "Tx %s/0x%08x: Reject(%d, 0x%02x, 0x%02x)\n", imsi, session_id,</span><br><span style="color: hsl(120, 100%, 40%);">+ invoke_id, problem_tag, problem_code);</span><br><span style="color: hsl(120, 100%, 40%);">+ OSMO_ASSERT(msg);</span><br><span style="color: hsl(120, 100%, 40%);">+ return euse_tx_ss(gsupc, imsi, session_id, OSMO_GSUP_MSGT_PROC_SS_RESULT, true, msg);</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+/*! send a SS/USSD response in 7-bit GSM default alphabet o a given imsi/session.</span><br><span style="color: hsl(120, 100%, 40%);">+ * \param[in] gsupc GSUP client connection through which to send</span><br><span style="color: hsl(120, 100%, 40%);">+ * \param[in] imsi IMSI of the subscriber</span><br><span style="color: hsl(120, 100%, 40%);">+ * \param[in] session_id Unique identifier of SS session for which this response is</span><br><span style="color: hsl(120, 100%, 40%);">+ * \param[in] final Is this the final result (true=END) or an intermediate result</span><br><span style="color: hsl(120, 100%, 40%);">+ * (false=CONTINUE)</span><br><span style="color: hsl(120, 100%, 40%);">+ * \param[in] invoke_id InvokeID of the request</span><br><span style="color: hsl(120, 100%, 40%);">+ */</span><br><span style="color: hsl(120, 100%, 40%);">+static int euse_tx_ussd_resp_7bit(struct osmo_gsup_client *gsupc, const char *imsi, uint32_t session_id,</span><br><span style="color: hsl(120, 100%, 40%);">+ bool final, uint8_t invoke_id, const char *text)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ struct msgb *ss_msg;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* encode response; remove L3 header */</span><br><span style="color: hsl(120, 100%, 40%);">+ ss_msg = gsm0480_gen_ussd_resp_7bit(invoke_id, text);</span><br><span style="color: hsl(120, 100%, 40%);">+ LOGP(DMAIN, LOGL_DEBUG, "Tx %s/0x%08x: USSD Result(%d, %s, '%s')\n", imsi, session_id,</span><br><span style="color: hsl(120, 100%, 40%);">+ invoke_id, final ? "END" : "CONTINUE", text);</span><br><span style="color: hsl(120, 100%, 40%);">+ OSMO_ASSERT(ss_msg);</span><br><span style="color: hsl(120, 100%, 40%);">+ return euse_tx_ss(gsupc, imsi, session_id, OSMO_GSUP_MSGT_PROC_SS_RESULT, final, ss_msg);</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+static int euse_rx_proc_ss_req(struct osmo_gsup_client *gsupc, const struct osmo_gsup_message *gsup)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ char buf[GSM0480_USSD_7BIT_STRING_LEN+1];</span><br><span style="color: hsl(120, 100%, 40%);">+ struct ss_request req = {0};</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ if (gsup->ss_info && gsup->ss_info_len) {</span><br><span style="color: hsl(120, 100%, 40%);">+ if (gsm0480_parse_facility_ie(gsup->ss_info, gsup->ss_info_len, &req)) {</span><br><span style="color: hsl(120, 100%, 40%);">+ return euse_tx_ussd_reject(gsupc, gsup->imsi, gsup->session_id, -1,</span><br><span style="color: hsl(120, 100%, 40%);">+ GSM_0480_PROBLEM_CODE_TAG_GENERAL,</span><br><span style="color: hsl(120, 100%, 40%);">+ GSM_0480_GEN_PROB_CODE_BAD_STRUCTURE);</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ LOGP(DMAIN, LOGL_INFO, "Rx %s/0x%08x: USSD SessionState=%s, OpCode=%s, '%s'\n", gsup->imsi,</span><br><span style="color: hsl(120, 100%, 40%);">+ gsup->session_id, osmo_gsup_session_state_name(gsup->session_state),</span><br><span style="color: hsl(120, 100%, 40%);">+ gsm0480_op_code_name(req.opcode), req.ussd_text);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* we only handle single-request-response USSD in this demo */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (gsup->session_state != OSMO_GSUP_SESSION_STATE_BEGIN) {</span><br><span style="color: hsl(120, 100%, 40%);">+ return euse_tx_ussd_reject(gsupc, gsup->imsi, gsup->session_id, req.invoke_id,</span><br><span style="color: hsl(120, 100%, 40%);">+ GSM_0480_PROBLEM_CODE_TAG_GENERAL,</span><br><span style="color: hsl(120, 100%, 40%);">+ GSM_0480_GEN_PROB_CODE_UNRECOGNISED);</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ snprintf(buf, sizeof(buf), "You sent \"%s\"", req.ussd_text);</span><br><span style="color: hsl(120, 100%, 40%);">+ return euse_tx_ussd_resp_7bit(gsupc, gsup->imsi, gsup->session_id, true, req.invoke_id, buf);</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+static int gsupc_read_cb(struct osmo_gsup_client *gsupc, struct msgb *msg)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ struct osmo_gsup_message gsup_msg = {0};</span><br><span style="color: hsl(120, 100%, 40%);">+ int rc;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ rc = osmo_gsup_decode(msgb_l2(msg), msgb_l2len(msg), &gsup_msg);</span><br><span style="color: hsl(120, 100%, 40%);">+ if (rc < 0) {</span><br><span style="color: hsl(120, 100%, 40%);">+ LOGP(DMAIN, LOGL_ERROR, "Error decoding GSUP: %s\n", msgb_hexdump(msg));</span><br><span style="color: hsl(120, 100%, 40%);">+ return rc;</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+ DEBUGP(DMAIN, "Rx GSUP %s: %s\n", osmo_gsup_message_type_name(gsup_msg.message_type),</span><br><span style="color: hsl(120, 100%, 40%);">+ msgb_hexdump(msg));</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ switch (gsup_msg.message_type) {</span><br><span style="color: hsl(120, 100%, 40%);">+ case OSMO_GSUP_MSGT_PROC_SS_REQUEST:</span><br><span style="color: hsl(120, 100%, 40%);">+ case OSMO_GSUP_MSGT_PROC_SS_RESULT:</span><br><span style="color: hsl(120, 100%, 40%);">+ euse_rx_proc_ss_req(gsupc, &gsup_msg);</span><br><span style="color: hsl(120, 100%, 40%);">+ break;</span><br><span style="color: hsl(120, 100%, 40%);">+ case OSMO_GSUP_MSGT_PROC_SS_ERROR:</span><br><span style="color: hsl(120, 100%, 40%);">+ break;</span><br><span style="color: hsl(120, 100%, 40%);">+ default:</span><br><span style="color: hsl(120, 100%, 40%);">+ LOGP(DMAIN, LOGL_DEBUG, "Unhandled GSUP message type %s\n",</span><br><span style="color: hsl(120, 100%, 40%);">+ osmo_gsup_message_type_name(gsup_msg.message_type));</span><br><span style="color: hsl(120, 100%, 40%);">+ break;</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ msgb_free(msg);</span><br><span style="color: hsl(120, 100%, 40%);">+ return 0;</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+static struct log_info_cat default_categories[] = {</span><br><span style="color: hsl(120, 100%, 40%);">+ [DMAIN] = {</span><br><span style="color: hsl(120, 100%, 40%);">+ .name = "DMAIN",</span><br><span style="color: hsl(120, 100%, 40%);">+ .description = "Main Program",</span><br><span style="color: hsl(120, 100%, 40%);">+ .enabled = 1, .loglevel = LOGL_DEBUG,</span><br><span style="color: hsl(120, 100%, 40%);">+ },</span><br><span style="color: hsl(120, 100%, 40%);">+};</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+static const struct log_info gsup_log_info = {</span><br><span style="color: hsl(120, 100%, 40%);">+ .cat = default_categories,</span><br><span style="color: hsl(120, 100%, 40%);">+ .num_cat = ARRAY_SIZE(default_categories),</span><br><span style="color: hsl(120, 100%, 40%);">+};</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+static void print_usage(void)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ printf("Usage: osmo-euse-demo [hlr-ip [hlr-gsup-port]]\n");</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+int main(int argc, char **argv)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ char *server_host = "127.0.0.1";</span><br><span style="color: hsl(120, 100%, 40%);">+ uint16_t server_port = OSMO_GSUP_PORT;</span><br><span style="color: hsl(120, 100%, 40%);">+ void *ctx = talloc_named_const(NULL, 0, "demo-euse");</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ osmo_init_logging2(ctx, &gsup_log_info);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ printf("argc=%d\n", argc);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ if (argc > 1) {</span><br><span style="color: hsl(120, 100%, 40%);">+ if (!strcmp(argv[1], "--help") || !strcmp(argv[1], "-h")) {</span><br><span style="color: hsl(120, 100%, 40%);">+ print_usage();</span><br><span style="color: hsl(120, 100%, 40%);">+ exit(0);</span><br><span style="color: hsl(120, 100%, 40%);">+ } else</span><br><span style="color: hsl(120, 100%, 40%);">+ server_host = argv[1];</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+ if (argc > 2)</span><br><span style="color: hsl(120, 100%, 40%);">+ server_port = atoi(argv[2]);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ g_gc = osmo_gsup_client_create(ctx, "EUSE-foobar", server_host, server_port, gsupc_read_cb, NULL);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ while (1) {</span><br><span style="color: hsl(120, 100%, 40%);">+ osmo_select_main(0);</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ exit(0);</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span></span><br></pre><p>To view, visit <a href="https://gerrit.osmocom.org/10250">change 10250</a>. To unsubscribe, or for help writing mail filters, visit <a href="https://gerrit.osmocom.org/settings">settings</a>.</p><div itemscope itemtype="http://schema.org/EmailMessage"><div itemscope itemprop="action" itemtype="http://schema.org/ViewAction"><link itemprop="url" href="https://gerrit.osmocom.org/10250"/><meta itemprop="name" content="View Change"/></div></div>
<div style="display:none"> Gerrit-Project: osmo-hlr </div>
<div style="display:none"> Gerrit-Branch: master </div>
<div style="display:none"> Gerrit-MessageType: merged </div>
<div style="display:none"> Gerrit-Change-Id: I3fb8554ca329cb609c591058254117006f665e73 </div>
<div style="display:none"> Gerrit-Change-Number: 10250 </div>
<div style="display:none"> Gerrit-PatchSet: 7 </div>
<div style="display:none"> Gerrit-Owner: Harald Welte <laforge@gnumonks.org> </div>
<div style="display:none"> Gerrit-Reviewer: Harald Welte <laforge@gnumonks.org> </div>
<div style="display:none"> Gerrit-Reviewer: Jenkins Builder </div>