* add RA procedures for handover, SR, and other DCCH messaging. Status: experimental

* fixed few issues in the testing scripts
* pre-ci passed 


git-svn-id: http://svn.eurecom.fr/openair4G/trunk@4334 818b1a75-f10b-46b9-bf7c-635c3b92a50f

openair2/LAYER2/MAC/config.c

@@ -316,7 +316,8 @@ int rrc_mac_config_req(u8 Mod_id,u8 eNB_flag,u8 UE_id,u8 eNB_index,
 	       (void *)mobilityControlInfo->radioResourceConfigCommon.ul_CyclicPrefixLength,
 	       sizeof(UL_CyclicPrefixLength_t));
       }
-      
+      // store the previous rnti in case of failure, and set thenew rnti
+      UE_mac_inst[Mod_id].crnti_before_ho = UE_mac_inst[Mod_id].crnti;
       UE_mac_inst[Mod_id].crnti = ((mobilityControlInfo->newUE_Identity.buf[0])|(mobilityControlInfo->newUE_Identity.buf[1]<<8));
       LOG_I(MAC,"[UE %d] Received new identity %x from %d\n", Mod_id, UE_mac_inst[Mod_id].crnti, eNB_index);
       UE_mac_inst[Mod_id].rach_ConfigDedicated = malloc(sizeof(*mobilityControlInfo->rach_ConfigDedicated));

openair2/LAYER2/MAC/defs.h

@@ -711,6 +711,8 @@ typedef struct{
   u32 subframe;
   /// C-RNTI of UE
   u16 crnti;
+  /// C-RNTI of UE before HO
+  uint16_t crnti_before_ho; ///user id (rnti) of connected UEs
   /// uplink active flag
   uint8_t ul_active;
   /// pointer to RRC PHY configuration 

openair2/LAYER2/MAC/ra_procedures.c

@@ -227,7 +227,13 @@ PRACH_RESOURCES_t *ue_get_rach(u8 Mod_id,u32 frame, u8 eNB_index,u8 subframe){
   u16 Size16;
   struct RACH_ConfigCommon *rach_ConfigCommon = (struct RACH_ConfigCommon *)NULL;
   s32 frame_diff=0;
-
+  mac_rlc_status_resp_t rlc_status;
+  u8 dcch_header_len=0;
+  u8 dcch_header_len_tmp=0;
+  u16 sdu_lengths[8];
+  u8 sdu_lcids[8],payload_offset=0,num_sdus=0;
+  u8 ulsch_buff[MAX_ULSCH_PAYLOAD_BYTES];
+  u16 sdu_length_total=0;
 
   if (UE_mode == PRACH) {
     if (UE_mac_inst[Mod_id].radioResourceConfigCommon)
@@ -254,8 +260,6 @@ PRACH_RESOURCES_t *ue_get_rach(u8 Mod_id,u32 frame, u8 eNB_index,u8 subframe){
 
 	if (Size>0) {
 
-
-
 	  UE_mac_inst[Mod_id].RA_active                        = 1;
 	  UE_mac_inst[Mod_id].RA_PREAMBLE_TRANSMISSION_COUNTER = 1;
 	  UE_mac_inst[Mod_id].RA_Msg3_size                     = Size+sizeof(SCH_SUBHEADER_SHORT)+sizeof(SCH_SUBHEADER_SHORT);
@@ -292,6 +296,65 @@ PRACH_RESOURCES_t *ue_get_rach(u8 Mod_id,u32 frame, u8 eNB_index,u8 subframe){
 	  
 	  return(&UE_mac_inst[Mod_id].RA_prach_resources);
 	}
+	else if (UE_mac_inst[Mod_id].scheduling_info.BSR_bytes[DCCH] > 0) {  
+	  // This is for triggering a transmission on DCCH using PRACH (during handover, or sending SR for example)
+	  dcch_header_len = 2 + 2;  /// SHORT Subheader + C-RNTI control element
+	  rlc_status = mac_rlc_status_ind(Mod_id+NB_eNB_INST,frame,0,RLC_MBMS_NO,
+					  DCCH,
+					  6);
+	  if (UE_mac_inst[Mod_id].crnti_before_ho) 
+	    LOG_D(MAC,"[UE %d] Frame %d : UL-DCCH -> ULSCH, HO RRCConnectionReconfigurationComplete (%x, %x), RRC message has %d bytes to send throug PRACH (mac header len %d)\n",
+		  Mod_id,frame, UE_mac_inst[Mod_id].crnti,UE_mac_inst[Mod_id].crnti_before_ho, rlc_status.bytes_in_buffer,dcch_header_len);
+	  else 
+	    LOG_D(MAC,"[UE %d] Frame %d : UL-DCCH -> ULSCH, RRC message has %d bytes to send through PRACH(mac header len %d)\n",
+		  Mod_id,frame, rlc_status.bytes_in_buffer,dcch_header_len);
+	  
+	  sdu_lengths[0] = mac_rlc_data_req(Mod_id+NB_eNB_INST,frame,RLC_MBMS_NO,
+					    DCCH,
+					    (char *)&ulsch_buff[0]);
+	
+	  sdu_length_total = sdu_lengths[0];
+	  sdu_lcids[0] = DCCH;
+	  
+	  LOG_D(MAC,"[UE %d] TX Got %d bytes for DCCH\n",Mod_id,sdu_lengths[0]);
+	  num_sdus = 1;
+	  update_bsr(Mod_id, frame, DCCH,UE_mac_inst[Mod_id].scheduling_info.LCGID[DCCH]);
+	  //header_len +=2;
+	  UE_mac_inst[Mod_id].RA_active                        = 1;
+	  UE_mac_inst[Mod_id].RA_PREAMBLE_TRANSMISSION_COUNTER = 1;
+	  UE_mac_inst[Mod_id].RA_Msg3_size                     = Size+dcch_header_len;
+	  UE_mac_inst[Mod_id].RA_prachMaskIndex                = 0;
+	  UE_mac_inst[Mod_id].RA_prach_resources.Msg3          = ulsch_buff;
+	  UE_mac_inst[Mod_id].RA_backoff_cnt                   = 0;  // add the backoff condition here if we have it from a previous RA reponse which failed (i.e. backoff indicator)
+	  if (rach_ConfigCommon) {
+	    UE_mac_inst[Mod_id].RA_window_cnt                    = 2+ rach_ConfigCommon->ra_SupervisionInfo.ra_ResponseWindowSize;
+	    if (UE_mac_inst[Mod_id].RA_window_cnt == 9)
+	      UE_mac_inst[Mod_id].RA_window_cnt = 10;  // Note: 9 subframe window doesn't exist, after 8 is 10!
+	  }
+	  else {
+	    LOG_D(MAC,"[UE %d] FATAL Frame %d: rach_ConfigCommon is NULL !!!\n",Mod_id,frame);
+	    mac_xface->macphy_exit("");
+	  }
+	  UE_mac_inst[Mod_id].RA_tx_frame    = frame;
+	  UE_mac_inst[Mod_id].RA_tx_subframe = subframe;
+	  UE_mac_inst[Mod_id].RA_backoff_frame    = frame;
+	  UE_mac_inst[Mod_id].RA_backoff_subframe = subframe;
+	  // Fill in preamble and PRACH resource
+	  get_prach_resources(Mod_id,eNB_index,subframe,1,NULL);
+	  generate_ulsch_header((u8*)ulsch_buff,  // mac header
+				1,      // num sdus
+				0,            // short pading
+				&Size16,  // sdu length
+				&lcid,    // sdu lcid
+				NULL,  // power headroom
+				&UE_mac_inst[Mod_id].crnti,  // crnti
+				NULL,  // truncated bsr
+				NULL, // short bsr
+				NULL, // long_bsr
+				0); //post_padding
+
+	  return(&UE_mac_inst[Mod_id].RA_prach_resources);
+	}
       }
       else {  // RACH is active
 	LOG_D(MAC,"[MAC][UE %d][RAPROC] frame %d, subframe %d: RA Active, window cnt %d (RA_tx_frame %d, RA_tx_subframe %d)\n",Mod_id,

openair2/LAYER2/MAC/ue_procedures.c

@@ -1366,7 +1366,7 @@ UE_L2_STATE_t ue_scheduler(u8 Mod_id,u32 frame, u8 subframe, lte_subframe_t dire
     LOG_E(MAC,"RRC Loss of synch, returning PHY_RESYNCH\n");
     return(PHY_RESYNCH);
   case RRC_Handover_failed:
-    LOG_D(MAC,"Handover failure for UE %d eNB_index %d\n",Mod_id,eNB_index);
+    LOG_N(MAC,"Handover failure for UE %d eNB_index %d\n",Mod_id,eNB_index);
     //Invalid...need to add another MAC UE state for re-connection procedure
     mac_xface->phy_config_afterHO_ue(Mod_id,eNB_index,(MobilityControlInfo_t *)NULL,1);
     //return(3);
@@ -1388,7 +1388,7 @@ UE_L2_STATE_t ue_scheduler(u8 Mod_id,u32 frame, u8 subframe, lte_subframe_t dire
       LOG_E(MAC,"FATAL: radioResourceConfigCommon is NULL!!!\n");
       mac_xface->macphy_exit("");
       vcd_signal_dumper_dump_function_by_name(VCD_SIGNAL_DUMPER_FUNCTIONS_UE_SCHEDULER, VCD_FUNCTION_OUT);
-      return(RRC_OK); // RRC_OK ???
+      return(RRC_OK); 
     }
 
     LOG_I(MAC,"Frame %d: Contention resolution timer %d/%d\n",frame,UE_mac_inst[Mod_id].RA_contention_resolution_cnt,

openair2/Makefile

@@ -205,6 +205,9 @@ emul_rt:
 
 clean:
 	(cd NAS/DRIVER/MESH && $(MAKE) clean)
+	(cd NAS/DRIVER/LITE && $(MAKE) clean)
+	rm -rf NAS/DRIVER/MESH/RB_TOOL/rb_tool
+	rm -rf NAS/DRIVER/LITE/RB_TOOL/rb_tool
 
 cleanall:
 	find -name *.o -delete -print

targets/README.txt

@@ -15,7 +15,7 @@ First, you must have all four openair SW directories, openair1, openair2, openai
 1. The following packages must be available on your system:
 
         - libblas and libblas-dev
-        - libxml2 and libxml2-dev
+        - libxml2 and libxml2-dev and gccxml
         - libforms-bin libforms-dev
 	- libatlas-base-dev and libatlas-headers (for Ubuntu 11.04, libatlas-dev instead of libatlas-headers)
         - asn1c and the LTE ASN1 files (for more information on how to install this and generate the required files see the README file in openair2/RRC/LITE/MESSAGES) 

targets/SIMU/USER/Makefile

@@ -407,14 +407,15 @@ oaisimCROWN: $(OBJ) $(ASN1_MSG_OBJS1) oaisimCROWN.c
 	@echo "Compiling oaisimCROWN.c ..."
 	@$(CC) oaisimCROWN.c -I$(TOP_DIR) $(L2_incl) $(UTIL_incl) $(UTILS_incl) -I$(ASN1_MSG_INC) $(S1AP_Incl) -o oaisimCROWN $(CFLAGS) $(EXTRA_CFLAGS) $(OBJ) $(ASN1_MSG_OBJS1) -lm -lblas -lpthread -llapack_atlas -lforms -lxml2 -lX11 -lXpm -lrt 
 
-test_nasmesh_fix:
+nasmesh_fix:
 	(cd $(OPENAIR2_DIR)/NAS/DRIVER/MESH/RB_TOOL && $(MAKE))
 	(cd $(OPENAIR2_DIR) && $(MAKE) nasmesh_netlink_address_fix.ko)
 	(cp $(OPENAIR2_DIR)/NAS/DRIVER/MESH/nasmesh.ko . )
-nasmesh_fix:
+nasmesh_fix_install:
 	(cd $(OPENAIR2_DIR)/NAS/DRIVER/MESH/RB_TOOL && $(MAKE))
 	(cd $(OPENAIR2_DIR) && $(MAKE) nasmesh_netlink_address_fix.ko)
 	(sudo insmod $(OPENAIR2_DIR)/NAS/DRIVER/MESH/nasmesh.ko)
+	(cp $(OPENAIR2_DIR)/NAS/DRIVER/MESH/nasmesh.ko . )	
 nasmesh_nl:
 	(cd $(OPENAIR2_DIR)/NAS/DRIVER/MESH/RB_TOOL && $(MAKE))
 	(cd $(OPENAIR2_DIR) && $(MAKE) nasmesh_netlink.ko)
@@ -425,7 +426,8 @@ rb_tool:
 nasmesh_install:
 	(sudo rmmod nasmesh)
 	(sudo insmod $(OPENAIR2_DIR)/NAS/DRIVER/MESH/nasmesh.ko)
-
+nasmesh_clean:
+	(cd $(OPENAIR2_DIR) && $(MAKE) clean)
 nas_sim_mt_cellular:
 	( cd $(OPENAIR2_DIR)/NAS/SIMU_CELLULAR && make nasmt_sim CELLULAR=1 NO_RRM=1)
 

targets/SIMU/USER/oaisim_functions.c

@@ -416,7 +416,7 @@ void check_and_adjust_params() {
   LOG_I(EMU,"[INIT] Starting NAS netlink interface\n");
   ret = netlink_init();
   if (ret < 0)
-    LOG_E(EMU,"[INIT] Netlink not available, careful ...\n");
+    LOG_W(EMU,"[INIT] Netlink not available, careful ...\n");
 
   if (ethernet_flag == 1) {
     oai_emulation.info.master[oai_emulation.info.master_id].nb_ue = oai_emulation.info.nb_ue_local + oai_emulation.info.nb_rn_local;

targets/TEST/OAI/case01.py

@@ -38,7 +38,7 @@ import log
 import openair
 import core
 
-makerr1 = 'make: ***'
+makerr1 = '***'
 makerr2 = 'Error 1'
 
 def execute(oai, user, pw, logfile):
@@ -88,15 +88,10 @@ def execute(oai, user, pw, logfile):
         oai.send('make cleanall;')
         oai.send('rm -f ./oaisim.rel8.nas;')
         oai.send('rm -f ./nasmesh;')
+        oai.send('make nasmesh_clean;')
+        oai.send_expect_false('make nasmesh_fix;', makerr1,  60)
         oai.send_expect_false('make NAS=1 -j4;', makerr1,  1500)
         oai.send('cp ./oaisim ./oaisim.rel8.nas;')
-        if user == 'root' : 
-            oai.send_nowait('rmmod nasmesh;')
-            oai.send_expect_false('make nasmesh_fix;', makerr1,  60)
-        else :
-            oai.send_nowait('echo '+pw+ ' | sudo -S rmmod nasmesh;')
-            oai.send_expect_false('make test_nasmesh_fix;', makerr1,  60)
-            oai.send_nowait('echo '+pw+ ' | sudo -S insmod ./nasmesh.ko;')
         
     except log.err, e:
         log.fail(case, test, name, conf, e.value, diag, logfile)
@@ -183,8 +178,10 @@ def execute(oai, user, pw, logfile):
         #oai.send('cp ./oaisim ./oaisim.rel8.cellular.rg;')
     #except log.err, e:
         #log.fail(case, test, name, conf, e.value, diag, logfile)
+        #log.skip(case, test, name, conf, '', '', logfile)
     #else:
         #log.ok(case, test, name, conf, '', logfile)
+        #log.skip(case, test, name, conf, '', '', logfile)
 
     #try:
         #test = '08'
@@ -199,12 +196,14 @@ def execute(oai, user, pw, logfile):
         #oai.send('cp ./oaisim ./oaisim.rel8.cellular.mt;')
     #except log.err, e:
         #log.fail(case, test, name, conf, e.value, diag, logfile)
+        #log.skip(case, test, name, conf, '', '', logfile)
     #else:
         #log.ok(case, test, name, conf, '', logfile)
+        #log.skip(case, test, name, conf, '', '', logfile)
 
     #try:
         #test = '09'
-        #name = 'Compile nas_sim_rg_cellular'
+        #name = 'Compile oai.rel8.cellular.nas.eNB'
         #conf = 'make nas_sim_rg_cellular'
         #diag = 'check the compilation errors for NAS SIM RRC Cellular (node RG)'
         #oai.send('make clean;')
@@ -215,12 +214,14 @@ def execute(oai, user, pw, logfile):
         #oai.send_expect_false('make nas_sim_rg_cellular -j4;', makerr1,  1500)
     #except log.err, e:
         #log.fail(case, test, name, conf, e.value, diag, logfile)
+        #log.skip(case, test, name, conf, '', '', logfile)
     #else:
         #log.ok(case, test, name, conf, '', logfile)
+        #log.skip(case, test, name, conf, '', '', logfile)
     
     #try:
         #test = '10'
-        #name = 'Compile nas_sim_mt_cellular'
+        #name = 'Compile oai.rel8.cellular.nas.UE'
         #conf = 'make nas_sim_mt_cellular'
         #diag = 'check the compilation errors for NAS SIM RRC Cellular (node MT)'
         #oai.send('make clean;')
@@ -231,8 +232,10 @@ def execute(oai, user, pw, logfile):
         #oai.send_expect_false('make nas_sim_mt_cellular -j4;', makerr1,  1500)
     #except log.err, e:
         #log.fail(case, test, name, conf, e.value, diag, logfile)
+        #log.skip(case, test, name, conf, '', '', logfile)
     #else:
         #log.ok(case, test, name, conf, '', logfile)
+        #log.skip(case, test, name, conf, '', '', logfile)
         
     try:
         test = '11'

targets/TEST/OAI/case02.py

@@ -93,6 +93,7 @@ def execute(oai, user, pw, logfile):
         test = '03'
         name = 'Run oai.rel8.abs.ping'
         diag = 'Data-plane is not working normally, check the OAI protocol stack, OAI driver, and normal operation of the OS'
+        oai.driver(oai,user,pw)
         for i in range(NUM_UE) :
             for j in range(NUM_eNB) :
                 conf = '-a -A AWGN -u' + str(i+1) +' -b'+ str(j+1)
@@ -112,6 +113,8 @@ def execute(oai, user, pw, logfile):
                     time.sleep(1)
                     oai.send_nowait('echo '+pw+ ' | sudo -S pkill oaisim.rel8.nas;')
         
+        oai.rm_driver(oai,user,pw)
+
     except log.err, e:
         log.fail(case, test, name, conf, e.value, diag, logfile)
     else:

targets/TEST/OAI/openair.py

@@ -121,4 +121,27 @@ class openair(core):
         except Error, val:
             print "Error:", val
             
+    def rm_driver(self,oai,user, pw):
+        try:
+            if user == 'root' : 
+                #oai.send_nowait('rmmod nasmesh;')
+                os.system('rmmod nasmesh;')
+            else :
+                #oai.send_nowait('echo '+pw+ ' | sudo -S rmmod nasmesh;')
+                os.system('echo '+pw+ ' | sudo -S rmmod nasmesh;')
+        except Error, val:
+            print "Error removing oai network driver module:", val
    
+    def driver(self,oai,user,pw):
+        pwd = oai.send_recv('pwd') 
+        oai.send('cd $OPENAIR_TARGETS;')   
+        oai.send('cd SIMU/USER;')   
+        try:
+            if user == 'root' : 
+                oai.send_nowait('insmod ./nasmesh.ko;')
+            else :
+                oai.send_nowait('echo '+pw+ ' | sudo -S insmod ./nasmesh.ko;')
+                
+            oai.send_nowait('cd '+ pwd)  
+        except Error, val:
+            print "Error inserting oai network driver module:", val

targets/TEST/OAI/test01.py

@@ -103,12 +103,15 @@ log.writefile(logfile,'====================start'+test+' at ' + ctime + '=======
 log.set_debug_level(debug)
 
 oai.kill(user, pw)   
+oai.rm_driver(oai,user,pw)
+
 # start te test cases 
 case01.execute(oai, user, pw, logfile)
 case02.execute(oai, user, pw, logfile)
 case03.execute(oai, user, pw, logfile)
 
 oai.kill(user, pw) 
+oai.rm_driver(oai,user,pw)
 
 # perform the stats
 log.statistics(logfile)