TODO transport layer address, play scenario max speed

cmake_targets/tools/build_helper

@@ -301,184 +301,6 @@ install_nas_tools() {
   fi
 
 }
-#################################################
-# 3. Network interfaces utilities 
-################################################
-
-cidr2mask(){
-  local i mask=""
-  local full_octets=$(($1/8))
-  local partial_octet=$(($1%8))
-
-  for ((i=0;i<4;i+=1)); do
-    if [ $i -lt $full_octets ]; then
-      mask+=255
-    elif [ $i -eq $full_octets ]; then
-      mask+=$((256 - 2**(8-$partial_octet)))
-    else
-      mask+=0
-    fi
-    test $i -lt 3 && mask+=.
-  done
-
-  echo $mask
-}
-
-# example: netcalc 192.168.12.100 255.255.255.0
-netcalc(){
-  local IFS='.' ip i
-  local -a oct msk
-    
-  read -ra oct <<<"$1"
-  read -ra msk <<<"$2"
-
-  for i in ${!oct[@]}; do
-    ip+=( "$(( oct[i] & msk[i] ))" )
-  done
-    
-  echo "${ip[*]}"
-}
-
-# example: 
-bcastcalc(){
-  local IFS='.' ip i
-  local -a oct msk
-    
-  read -ra oct <<<"$1"
-  read -ra msk <<<"$2"
-
-  for i in ${!oct[@]}; do
-    ip+=( "$(( oct[i] + ( 255 - ( oct[i] | msk[i] ) ) ))" )
-  done
-  echo "${ip[*]}"
-}
-
-
-is_real_interface(){
-  my_bool=1
-  for var in "$@"
-  do
-    if [ "a$var" == "a" ]; then
-      return 0
-    fi
-    if [ "a$var" == "anone" ]; then
-      return 0
-    fi
-    IF=`cat /etc/udev/rules.d/70-persistent-net.rules | grep $var | sed 's/^.*NAME=//' | tr -d '"'`
-    if [ "$IF" == "$var" ]; then
-      if [ "a${var:0:3}" != "aeth" ]; then
-        if [ "a${var:0:4}" != "awlan" ]; then
-          if [ "a${var:0:4}" != "awifi" ]; then
-            my_bool=0;
-          fi
-        fi
-      fi
-    fi
-  done
-  return $my_bool
-}
-
-is_virtual_interface(){
-  my_bool=1
-  for var in "$@"
-  do
-    if [ "a$var" == "a" ]; then
-      return 0
-    fi
-    if [ "a$var" == "anone" ]; then
-      return 0
-    fi
-    num=`expr index "$var" :`
-    
-    if [ $num -eq 0 ]; then
-      my_bool=0;
-    fi
-  done
-  return $my_bool
-}
-
-# arg1 = interface name
-# arg2 = ipv4 addr cidr
-set_interface_up(){
-  interface=$1
-  address=${2%/*} #part before '/'
-  cidr_netmask=${2#*/} # part after '/'
-
-  if [ "a${interface:0:4}" == "anone" ]; then
-    return;
-  fi
-  echo "ifconfig  $interface up"
-  $SUDO ifconfig  $interface up
-  sync
-  netmask=`cidr2mask $cidr_netmask`
-  broadcast=`bcastcalc $address $netmask`
-  echo "ip -4 addr add  $address/$cidr_netmask broadcast $broadcast dev $interface"
-  $SUDO ip -4 addr add  $address/$cidr_netmask broadcast $broadcast dev $interface
-  sync
-}
-
-# arg1 = interface name
-# arg2 = ipv4 addr cidr
-set_virtual_interface_up(){
-  interface=$1
-  address=${2%/*} #part before '/'
-  cidr_netmask=${2#*/} # part after '/'
-
-  if [ "a${interface:0:4}" == "anone" ]; then
-    return;
-  fi
-  $SUDO ifconfig  $interface down > /dev/null 2>&1
-  sync
-  echo "ifconfig  $interface $address up"
-  $SUDO ifconfig  $interface $address up
-  sync
-}
-
-#arg1 is interface name
-#arg2 is IP address (CIDR)
-set_network_interface(){
-  local interface_name=$1
-  local ip_cidr=$2
-  
-  is_virtual_interface $interface_name
-  if [ $? -eq 1 ]; then
-    echo "$interface_name is virtual interface"
-    set_virtual_interface_up $interface_name $ip_cidr
-  else 
-    is_real_interface $interface_name
-    if [ $? -eq 1 ]; then
-      echo "$interface_name is real interface"
-      set_interface_up $interface_name $ip_cidr
-    else
-      echo_warning "$interface_name not handled, not configuring it"
-      return
-    fi
-  fi
-}
-
-# arg1 is a 'libconfig-like' config file
-set_epc_network_interfaces(){
-  value="`cat $1 | cut -d "#" -f1 | grep 'ADDRESS\|INTERFACE' | tr -d " " | grep "="`"
-  eval $value
-  
-  # check all var names are correct
-  list_var_name="\
-        ENB_INTERFACE_NAME_FOR_S1_MME         ENB_IPV4_ADDRESS_FOR_S1_MME \
-        ENB_INTERFACE_NAME_FOR_S1U            ENB_IPV4_ADDRESS_FOR_S1U "
-  for var_name in $list_var_name
-  do
-    if [ -n "$${var_name}" ]; then
-      echo_success "Found ${var_name} = ${!var_name}"
-    else
-      echo_fatal "${var_name} does does not exist in your config file $1"
-    fi
-  done
-
-  # configure interfaces
-  set_network_interface  $ENB_INTERFACE_NAME_FOR_S1_MME         $ENB_IPV4_ADDRESS_FOR_S1_MME 
-  set_network_interface  $ENB_INTERFACE_NAME_FOR_S1U            $ENB_IPV4_ADDRESS_FOR_S1U 
-}
-
 
 
 ################################

openair3/TEST/EPC_TEST/generate_scenario.c

@@ -142,7 +142,7 @@ int strip_extension(char *in_filename)
 
   if (NULL != in_filename) {
     /* Check chars starting at end of string to find last '.' */
-    for (ssize_t i = strlen(in_filename); i > (name_min_len + max_ext_len); i--) {
+    for (ssize_t i = strlen(in_filename); i >= name_min_len; i--) {
       if (in_filename[i] == '.') {
         in_filename[i] = '\0';
         return i;
@@ -662,7 +662,7 @@ config_parse_opt_line (
       fprintf(stderr, "Error: eNB config file name %s is not found in dir %s\n", enb_config_file_name, g_test_dir);
     }
     enb_config_init(enb_config_file_name);
-    enb_config_display();
+    //enb_config_display();
 
     if (NULL == pdml_in_file_name) {
       fprintf(stderr, "Error: please provide the PDML file name that should be in %s\n", g_test_dir);

openair3/TEST/EPC_TEST/play_scenario.c

@@ -69,6 +69,7 @@
 #define GS_IS_DIR                  2
 //------------------------------------------------------------------------------
 Enb_properties_array_t g_enb_properties;
+int                    g_max_speed = 0;
 //------------------------------------------------------------------------------
 extern et_scenario_t  *g_scenario;
 extern int             xmlLoadExtDtdDefaultValue;
@@ -118,7 +119,7 @@ int et_strip_extension(char *in_filename)
 
   if (NULL != in_filename) {
     /* Check chars starting at end of string to find last '.' */
-    for (ssize_t i = strlen(in_filename); i > (name_min_len + max_ext_len); i--) {
+    for (ssize_t i = strlen(in_filename); i > name_min_len; i--) {
       if (in_filename[i] == '.') {
         in_filename[i] = '\0';
         return i;
@@ -833,6 +834,7 @@ et_config_parse_opt_line (
     LONG_OPTION_START = 0x100, /* Start after regular single char options */
     LONG_OPTION_ENB_CONF_FILE,
     LONG_OPTION_SCENARIO_FILE,
+    LONG_OPTION_MAX_SPEED,
     LONG_OPTION_TEST_DIR,
     LONG_OPTION_HELP,
     LONG_OPTION_VERSION
@@ -841,6 +843,7 @@ et_config_parse_opt_line (
   static struct option long_options[] = {
     {"enb-conf-file",  required_argument, 0, LONG_OPTION_ENB_CONF_FILE},
     {"scenario ",      required_argument, 0, LONG_OPTION_SCENARIO_FILE},
+    {"max-speed ",     no_argument,       0, LONG_OPTION_MAX_SPEED},
     {"test-dir",       required_argument, 0, LONG_OPTION_TEST_DIR},
     {"help",           no_argument,       0, LONG_OPTION_HELP},
     {"version",        no_argument,       0, LONG_OPTION_VERSION},
@@ -850,7 +853,7 @@ et_config_parse_opt_line (
   /*
    * Parsing command line
    */
-  while ((option = getopt_long (argc, argv, "vhc:s:d:", long_options, NULL)) != -1) {
+  while ((option = getopt_long (argc, argv, "vhmc:s:d:", long_options, NULL)) != -1) {
     switch (option) {
       case LONG_OPTION_ENB_CONF_FILE:
       case 'c':
@@ -882,6 +885,11 @@ et_config_parse_opt_line (
         }
         break;
 
+      case LONG_OPTION_MAX_SPEED:
+      case 'm':
+        g_max_speed = 1;
+        break;
+
       case LONG_OPTION_VERSION:
       case 'v':
         printf("Version %s\n", PACKAGE_VERSION);

openair3/TEST/EPC_TEST/play_scenario.h

@@ -40,6 +40,7 @@
 #  include <time.h>
 #  include <stdint.h>
 #  include <libxml/tree.h>
+#  include <libxml/xpath.h>
 #  include <netinet/in.h>
 
 #include "S1AP-PDU.h"
@@ -460,6 +461,9 @@ et_packet_t* et_parse_xml_packet(xmlDocPtr doc, xmlNodePtr node);
 et_scenario_t* et_generate_scenario(const char  * const et_scenario_filename );
 //-------------------------
 asn_comp_rval_t * et_s1ap_ies_is_matching(const S1AP_PDU_PR present, s1ap_message * const m1, s1ap_message * const m2, const uint32_t constraints);
+void update_xpath_node_mme_ue_s1ap_id(et_s1ap_t * const s1ap, xmlNode *node, const S1ap_MME_UE_S1AP_ID_t new_id);
+void update_xpath_nodes_mme_ue_s1ap_id(et_s1ap_t * const s1ap_payload, xmlNodeSetPtr nodes, const S1ap_MME_UE_S1AP_ID_t new_id);
+int et_s1ap_update_mme_ue_s1ap_id(et_packet_t * const packet, const S1ap_MME_UE_S1AP_ID_t old_id, const S1ap_MME_UE_S1AP_ID_t new_id);
 //-------------------------
 asn_comp_rval_t * et_sctp_data_is_matching(sctp_datahdr_t * const sctp1, sctp_datahdr_t * const sctp2, const uint32_t constraints);
 asn_comp_rval_t * et_sctp_is_matching(et_sctp_hdr_t * const sctp1, et_sctp_hdr_t * const sctp2, const uint32_t constraints);

openair3/TEST/EPC_TEST/play_scenario_fsm.c

@@ -46,6 +46,8 @@
 #include "play_scenario_s1ap_eNB_defs.h"
 #include "timer.h"
 
+//------------------------------------------------------------------------------
+extern int                    g_max_speed;
 //------------------------------------------------------------------------------
 et_scenario_t    *g_scenario  = NULL;
 pthread_mutex_t   g_fsm_lock  = PTHREAD_MUTEX_INITIALIZER;
@@ -86,13 +88,13 @@ int timeval_subtract (struct timeval * const result, struct timeval * const a, s
 //------------------------------------------------------------------------------
 void et_scenario_wait_rx_packet(et_packet_t * const packet)
 {
+  packet->status = ET_PACKET_STATUS_SCHEDULED_FOR_RECEIVING;
+  g_fsm_state    = ET_FSM_STATE_WAITING_RX_EVENT;
   if (timer_setup (ET_FSM_STATE_WAITING_RX_EVENT_DELAY_SEC, 0, TASK_S1AP, INSTANCE_DEFAULT, TIMER_ONE_SHOT,
-                   NULL, &packet->timer_id) < 0) {
+        packet, &packet->timer_id) < 0) {
     AssertFatal(0, " Can not start waiting RX event timer\n");
   }
   LOG_D(ENB_APP, "Waiting RX packet num %d\n", packet->packet_number);
-  g_fsm_state = ET_FSM_STATE_WAITING_RX_EVENT;
-  packet->status = ET_PACKET_STATUS_SCHEDULED_FOR_RECEIVING;
 }
 //------------------------------------------------------------------------------
 void et_scenario_schedule_tx_packet(et_packet_t * const packet)
@@ -133,14 +135,19 @@ void et_scenario_schedule_tx_packet(et_packet_t * const packet)
         we_are_too_early = timeval_subtract(&offset,&offset_last_rx_packet,&packet->time_relative_to_last_received_packet);
         LOG_D(ENB_APP, "we_are_too_early=%d, offset=%ld.%06d\n", we_are_too_early, offset.tv_sec, offset.tv_usec);
       }
-      if (we_are_too_early > 0) {
+      if ((0 < we_are_too_early) && (0 == g_max_speed)){
         // set timer
+        if (offset.tv_sec < 0) offset.tv_sec = -offset.tv_sec;
+        if (offset.tv_usec < 0) {
+          offset.tv_usec = offset.tv_usec + 1000000;
+          offset.tv_sec  -= 1;
+        }
+
         LOG_D(ENB_APP, "Send packet num %u original frame number %u in %ld.%06d sec\n",
             packet->packet_number, packet->original_frame_number, offset.tv_sec, offset.tv_usec);
 
         packet->status = ET_PACKET_STATUS_SCHEDULED_FOR_SENDING;
-        if (timer_setup (offset.tv_sec, offset.tv_usec, TASK_S1AP, INSTANCE_DEFAULT, TIMER_ONE_SHOT,
-                         NULL, &packet->timer_id) < 0) {
+        if (timer_setup (offset.tv_sec, offset.tv_usec, TASK_S1AP, INSTANCE_DEFAULT, TIMER_ONE_SHOT,packet, &packet->timer_id) < 0) {
           AssertFatal(0, " Can not start TX event timer\n");
         }
         // Done g_fsm_state = ET_FSM_STATE_WAITING_TX_EVENT;

openair3/TEST/EPC_TEST/play_scenario_parse.c

@@ -359,7 +359,7 @@ et_packet_t* et_parse_xml_packet(xmlDocPtr doc, xmlNodePtr node) {
           afloat = atof((const char*)xml_char);
           xmlFree(xml_char);
           packet->time_relative_to_first_packet.tv_sec   = (int)afloat;
-          packet->time_relative_to_first_packet.tv_usec  = (int)((afloat - packet->time_relative_to_first_packet.tv_sec)*1000000);
+          packet->time_relative_to_first_packet.tv_usec  = (int)((afloat - packet->time_relative_to_first_packet.tv_sec)*1000000.0);
 
           if (first_packet > 0) {
             initial_time = packet->time_relative_to_first_packet;
@@ -381,6 +381,13 @@ et_packet_t* et_parse_xml_packet(xmlDocPtr doc, xmlNodePtr node) {
                   &packet->time_relative_to_last_sent_packet);
               relative_last_sent_packet = packet->time_relative_to_first_packet;
             }
+            if (first_received_packet > 0) {
+              packet->time_relative_to_last_received_packet.tv_sec  = 0;
+              packet->time_relative_to_last_received_packet.tv_usec = 0;
+            } else {
+              timersub(&packet->time_relative_to_first_packet, &relative_last_received_packet,
+                  &packet->time_relative_to_last_received_packet);
+            }
           } else if (packet->action == ET_PACKET_ACTION_S1C_RECEIVE) {
             if (first_received_packet > 0) {
               relative_last_received_packet.tv_sec = packet->time_relative_to_first_packet.tv_sec;
@@ -393,6 +400,13 @@ et_packet_t* et_parse_xml_packet(xmlDocPtr doc, xmlNodePtr node) {
                   &packet->time_relative_to_last_received_packet);
               relative_last_received_packet = packet->time_relative_to_first_packet;
             }
+            if (first_sent_packet > 0) {
+              packet->time_relative_to_last_sent_packet.tv_sec  = 0;
+              packet->time_relative_to_last_sent_packet.tv_usec = 0;
+            } else {
+              timersub(&packet->time_relative_to_first_packet, &relative_last_sent_packet,
+                  &packet->time_relative_to_last_sent_packet);
+            }
           }
 
         } else if ((!xmlStrcmp(cur_node->name, (const xmlChar *)"frame.number"))) {

openair3/TEST/EPC_TEST/play_scenario_s1ap.c

@@ -682,6 +682,11 @@ int et_s1ap_process_rx_packet(et_event_s1ap_data_ind_t * const s1ap_data_ind)
                 packet->timestamp_packet.tv_usec = rx_packet->timestamp_packet.tv_usec;
                 return et_scenario_set_packet_received(packet);
               }
+            } else if (strcmp(comp_results->name, "S1ap-TransportLayerAddress") == 0) {
+              S1AP_WARN("Some work needed there for %s, TODO in generic_scenario.xsl, add epc conf file in the process\n",comp_results->name);
+              packet->timestamp_packet.tv_sec = rx_packet->timestamp_packet.tv_sec;
+              packet->timestamp_packet.tv_usec = rx_packet->timestamp_packet.tv_usec;
+              return et_scenario_set_packet_received(packet);
             } else {
               AssertFatal(0,"Some work needed there");
             }
@@ -1109,6 +1114,7 @@ void *et_s1ap_eNB_task(void *arg)
       {
         et_packet_t * packet = (et_packet_t*)TIMER_HAS_EXPIRED (received_msg).arg;
         et_event_t    event;
+        if (NULL != packet) {
           if (packet->status == ET_PACKET_STATUS_SCHEDULED_FOR_RECEIVING) {
             memset((void*)&event, 0, sizeof(event));
             event.code = ET_EVENT_RX_PACKET_TIME_OUT;
@@ -1122,6 +1128,9 @@ void *et_s1ap_eNB_task(void *arg)
           } else if ((packet->status != ET_PACKET_STATUS_SENT) && ((packet->status != ET_PACKET_STATUS_RECEIVED))) {
             AssertFatal (0, "Bad status %d of packet timed out!\n", packet->status);
           }
+        } else {
+          LOG_W(S1AP, " Received TIMER_HAS_EXPIRED: timer_id %d, no packet attached to timer\n", TIMER_HAS_EXPIRED(received_msg).timer_id);
+        }
       }
       if (TIMER_HAS_EXPIRED (received_msg).timer_id == g_scenario->enb_register_retry_timer_id) {
         /* Restart the registration process */

openair3/TEST/EPC_TEST/play_scenario_s1ap_compare_ie.c

@@ -38,8 +38,10 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <stdint.h>
+#include <stdarg.h>
 #include <unistd.h>
 #include <crypt.h>
+#include <errno.h>
 #include <libxml/tree.h>
 #include <libxml/parser.h>
 #include <libxml/xpath.h>
@@ -457,7 +459,7 @@ asn_comp_rval_t * et_s1ap_ies_is_matching(const S1AP_PDU_PR present, s1ap_messag
 }
 
 
-static void update_xpath_node_mme_ue_s1ap_id(et_s1ap_t * const s1ap, xmlNode *node, xmlChar *new_id_hex, xmlChar *new_id_dec, xmlChar *showname)
+void update_xpath_node_mme_ue_s1ap_id(et_s1ap_t * const s1ap, xmlNode *node, const S1ap_MME_UE_S1AP_ID_t new_id)
 {
   xmlNode       *cur_node = NULL;
   xmlAttrPtr     attr     = NULL;
@@ -485,19 +487,47 @@ static void update_xpath_node_mme_ue_s1ap_id(et_s1ap_t * const s1ap, xmlNode *no
           xmlFree(xml_char);
           xml_char = xmlGetProp((xmlNode *)cur_node, (const xmlChar *)"size");
           if (NULL != xml_char) {
+            const xmlChar value_d[32];
+            const xmlChar value_h[20];
+            const xmlChar showname[64];
+            int           ret   = 0;
+            int           pos2  = 0;
+            char          val  = NULL;
+            char          hex[3] = {0,0,0};;
+
             size = strtoul((const char *)xml_char, NULL, 0);
             xmlFree(xml_char);
             // second: try to set value (always hex)
-            attr = xmlSetProp((xmlNode *)cur_node, (const xmlChar *)"value", new_id_hex);
-            attr = xmlSetProp((xmlNode *)cur_node, (const xmlChar *)"show", new_id_dec);
+            ret = snprintf((char *)value_d, 32, "%ld", new_id);
+            AssertFatal((ret < 0) || (ret > 32), "Could not convert int to dec str");
+            ret = snprintf((char *)value_h, 20, "C0%08X", new_id);
+            AssertFatal((ret < 0) || (ret > 20), "Could not convert int to hex str");
+            ret = snprintf((char *)showname, 64, "MME-UE-S1AP-ID: %d", new_id);
+            AssertFatal((ret < 0) || (ret > 64), "Could not convert int to dec str");
+
+            attr = xmlSetProp((xmlNode *)cur_node, (const xmlChar *)"value", value_h);
+            attr = xmlSetProp((xmlNode *)cur_node, (const xmlChar *)"show", value_d);
             attr = xmlSetProp((xmlNode *)cur_node, (const xmlChar *)"showname", showname);
             //TODO update s1ap->binary_stream @pos with new_id_hex, size
+            AssertFatal((pos+size) < s1ap->binary_stream_allocated_size, "Rewrite of mme_ue_s1ap_id out of bounds of binary_stream");
+            //avoid endianess issues
+            do {
+              hex[0] = value_h[pos2++];
+              hex[1] = value_h[pos2++];
+              hex[2] = 0;
+              val = (unsigned char)strtoul(hex, NULL, 16);
+              AssertFatal(errno != 0, "Conversion of hexstring %s failed", hex);
+              s1ap->binary_stream[pos++] = val;
+            } while (pos2 < (2*5));
+            // update ASN1
+            et_decode_s1ap(s1ap);
+            S1AP_DEBUG("Updated ASN1 for %s\n", showname);
           }
         }
       }
     }
     if (0 < go_deeper_in_tree) {
-      update_xpath_node_mme_ue_s1ap_id(s1ap, cur_node->children, new_id_hex, new_id_dec, showname);
+      update_xpath_node_mme_ue_s1ap_id(s1ap, cur_node->children, new_id);
     }
   }
 }
@@ -510,24 +540,14 @@ static void update_xpath_node_mme_ue_s1ap_id(et_s1ap_t * const s1ap, xmlNode *no
  * Prints the @nodes content to @output.
  * From http://www.xmlsoft.org/examples/#xpath2.c
  */
-static void update_xpath_nodes_mme_ue_s1ap_id(et_s1ap_t * const s1ap_payload, xmlNodeSetPtr nodes, const S1ap_MME_UE_S1AP_ID_t new_id)
+void update_xpath_nodes_mme_ue_s1ap_id(et_s1ap_t * const s1ap_payload, xmlNodeSetPtr nodes, const S1ap_MME_UE_S1AP_ID_t new_id)
 {
   int           size = 0;
   int           i    = 0;
-  int           ret  = 0;
-  const xmlChar value_d[32];
-  const xmlChar value_h[20];
-  const xmlChar showname[64];
   xmlNode      *s1ap_node = NULL;
 
   size = (nodes) ? nodes->nodeNr : 0;
 
-  ret = snprintf((char *)value_d, 32, "%ld", new_id);
-  AssertFatal((ret < 0) || (ret > 32), "Could not convert int to dec str");
-  ret = snprintf((char *)value_h, 20, "C0%X", new_id);
-  AssertFatal((ret < 0) || (ret > 20), "Could not convert int to hex str");
-  ret = snprintf((char *)showname, 64, "MME-UE-S1AP-ID: %d", new_id);
-  AssertFatal((ret < 0) || (ret > 64), "Could not convert int to dec str");
   /*
    * NOTE: the nodes are processed in reverse order, i.e. reverse document
    *       order because xmlNodeSetContent can actually free up descendant
@@ -539,7 +559,7 @@ static void update_xpath_nodes_mme_ue_s1ap_id(et_s1ap_t * const s1ap_payload, xm
   for(i = size - 1; i >= 0; i--) {
     s1ap_node = nodes->nodeTab[i];
     AssertFatal(NULL != s1ap_node, "One element of resultset of XPATH expression is NULL\n");
-    update_xpath_node_mme_ue_s1ap_id(s1ap_payload, s1ap_node, value_d, value_h, showname);
+    update_xpath_node_mme_ue_s1ap_id(s1ap_payload, s1ap_node, new_id);
     /*
      * All the elements returned by an XPath query are pointers to
      * elements from the tree *except* namespace nodes where the XPath
@@ -574,7 +594,7 @@ int et_s1ap_update_mme_ue_s1ap_id(et_packet_t * const packet, const S1ap_MME_UE_
   xmlXPathObjectPtr    xpath_obj = NULL;
 
   ret = snprintf(xpath_expression, ET_XPATH_EXPRESSION_MAX_LENGTH, "//field[@name=\"s1ap.MME_UE_S1AP_ID\"][@show=\"%d\"]", old_id);
-  AssertFatal((ret < 0) || (ret > ET_XPATH_EXPRESSION_MAX_LENGTH), "Could not build XPATH expression");
+  AssertFatal((ret > 0) && (ret < ET_XPATH_EXPRESSION_MAX_LENGTH), "Could not build XPATH expression err=%d", ret);
 
   doc = packet->sctp_hdr.u.data_hdr.payload.doc;
 

openair3/TEST/EPC_TEST/play_scenario_sctp.c

@@ -69,15 +69,16 @@ asn_comp_rval_t * et_sctp_data_is_matching(sctp_datahdr_t * const sctp1, sctp_da
       S1AP_WARN("No Matching SCTP stream %u %u\n", sctp1->stream, sctp2->stream);
     }
   }
-  if (sctp1->ssn != sctp2->ssn) {
-    if (constraints & ET_BIT_MASK_MATCH_SCTP_SSN) {
-      rv  = calloc(1, sizeof(asn_comp_rval_t));
-      rv->err_code = ET_ERROR_MATCH_PACKET_SCTP_SSN;
-      return rv;
-    } else {
-      S1AP_WARN("No Matching SCTP STREAM SN %u %u\n", sctp1->ssn, sctp2->ssn);
-    }
-  }
+  // We do not have SSN from lower layers
+//  if (sctp1->ssn != sctp2->ssn) {
+//    if (constraints & ET_BIT_MASK_MATCH_SCTP_SSN) {
+//      rv  = calloc(1, sizeof(asn_comp_rval_t));
+//      rv->err_code = ET_ERROR_MATCH_PACKET_SCTP_SSN;
+//      return rv;
+//    } else {
+//      S1AP_WARN("No Matching SCTP STREAM SN %u %u\n", sctp1->ssn, sctp2->ssn);
+//    }
+//  }
   return et_s1ap_is_matching(&sctp1->payload, &sctp2->payload,  constraints);
 }