src/surf/network_ns3.c

   1 /* Copyright (c) 2007, 2008, 2009, 2010, 2011. The SimGrid Team.
   2  * All rights reserved.                                                     */
   3
   4 /* This program is free software; you can redistribute it and/or modify it
   5  * under the terms of the license (GNU LGPL) which comes with this package. */
   6
   7 #include "surf_private.h"
   8 #include "surf/ns3/ns3_interface.h"
   9 #include "xbt/lib.h"
  10 #include "surf/network_ns3_private.h"
  11 #include "xbt/str.h"
  12
  13 extern xbt_lib_t host_lib;
  14 extern xbt_lib_t link_lib;
  15 extern xbt_lib_t as_router_lib;
  16
  17 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_network_ns3, surf,
  18                                 "Logging specific to the SURF network NS3 module");
  19
  20 extern routing_global_t global_routing;
  21
  22 static void replace_str(char *str, const char *orig, const char *rep)
  23 {
  24   char buffer[30];
  25   char *p;
  26
  27   if(!(p = strstr(str, orig)))  // Is 'orig' even in 'str'?
  28     return;
  29
  30   strncpy(buffer, str, p-str); // Copy characters from 'str' start to 'orig' st$
  31   buffer[p-str] = '\0';
  32
  33   sprintf(buffer+(p-str), "%s%s", rep, p+strlen(orig));
  34   xbt_free(str);
  35   str = xbt_strdup(buffer);
  36 }
  37
  38 static void replace_bdw_ns3(char * bdw)
  39 {
  40 //      replace_str(bdw,".00","");
  41 //      char *temp = xbt_strdup(bdw);
  42 //
  43 //      replace_str(bdw,"000000000","Gbps");
  44 //      if(strcmp(bdw,temp)) {xbt_free(temp);return;}
  45 //      replace_str(bdw,"00000000","00Mbps");
  46 //      if(strcmp(bdw,temp)) {xbt_free(temp);return;}
  47 //      replace_str(bdw,"0000000","0Mbps");
  48 //      if(strcmp(bdw,temp)) {xbt_free(temp);return;}
  49 //      replace_str(bdw,"000000","Mbps");
  50 //      if(strcmp(bdw,temp)) {xbt_free(temp);return;}
  51 //      replace_str(bdw,"00000","00Kbps");
  52 //      if(strcmp(bdw,temp)) {xbt_free(temp);return;}
  53 //      replace_str(bdw,"0000","0Kbps");
  54 //      if(strcmp(bdw,temp)) {xbt_free(temp);return;}
  55 //      replace_str(bdw,"000","Kbps");
  56 //      if(strcmp(bdw,temp)) {xbt_free(temp);return;}
  57 //
  58 //      xbt_free(bdw);
  59 //      bdw = bprintf("%s%s",temp,"bps");
  60 //      xbt_free(temp);
  61
  62         char *temp = xbt_strdup(bdw);
  63         xbt_free(bdw);
  64         bdw = bprintf("%fbps",atof(temp));
  65         xbt_free(temp);
  66
  67 }
  68
  69 static void replace_lat_ns3(char * lat)
  70 {
  71         char *temp = xbt_strdup(lat);
  72         xbt_free(lat);
  73         lat = bprintf("%fs",atof(temp));
  74         xbt_free(temp);
  75 }
  76
  77 void parse_ns3_add_host(void)
  78 {
  79         XBT_DEBUG("NS3_ADD_HOST '%s'",A_surfxml_host_id);
  80         xbt_lib_set(host_lib,
  81                                 A_surfxml_host_id,
  82                                 NS3_HOST_LEVEL,
  83                                 ns3_add_host(A_surfxml_host_id)
  84                                 );
  85 }
  86 void parse_ns3_add_link(void)
  87 {
  88         XBT_DEBUG("NS3_ADD_LINK '%s'",A_surfxml_link_id);
  89
  90         tmgr_trace_t bw_trace;
  91         tmgr_trace_t state_trace;
  92         tmgr_trace_t lat_trace;
  93
  94         bw_trace = tmgr_trace_new(A_surfxml_link_bandwidth_file);
  95         lat_trace = tmgr_trace_new(A_surfxml_link_latency_file);
  96         state_trace = tmgr_trace_new(A_surfxml_link_state_file);
  97
  98         if (bw_trace)
  99                 XBT_INFO("The NS3 network model doesn't support bandwidth state traces");
 100         if (lat_trace)
 101                 XBT_INFO("The NS3 network model doesn't support latency state traces");
 102         if (state_trace)
 103                 XBT_INFO("The NS3 network model doesn't support link state traces");
 104
 105         ns3_link_t link_ns3 = xbt_new0(s_ns3_link_t,1);;
 106         link_ns3->id = xbt_strdup(A_surfxml_link_id);
 107         link_ns3->bdw = xbt_strdup(A_surfxml_link_bandwidth);
 108         link_ns3->lat = xbt_strdup(A_surfxml_link_latency);
 109
 110         surf_ns3_link_t link = xbt_new0(s_surf_ns3_link_t,1);
 111         link->generic_resource.name = xbt_strdup(A_surfxml_link_id);
 112         link->generic_resource.properties = current_property_set;
 113         link->data = link_ns3;
 114         link->created = 1;
 115
 116         xbt_lib_set(link_lib,A_surfxml_link_id,NS3_LINK_LEVEL,link_ns3);
 117         xbt_lib_set(link_lib,A_surfxml_link_id,SURF_LINK_LEVEL,link);
 118 }
 119 void parse_ns3_add_router(void)
 120 {
 121         XBT_DEBUG("NS3_ADD_ROUTER '%s'",A_surfxml_router_id);
 122         xbt_lib_set(as_router_lib,
 123                                 A_surfxml_router_id,
 124                                 NS3_ASR_LEVEL,
 125                                 ns3_add_router(A_surfxml_router_id)
 126                                 );
 127 }
 128 void parse_ns3_add_AS(void)
 129 {
 130         XBT_DEBUG("NS3_ADD_AS '%s'",A_surfxml_AS_id);
 131         xbt_lib_set(as_router_lib,
 132                                 A_surfxml_AS_id,
 133                                 NS3_ASR_LEVEL,
 134                                 ns3_add_AS(A_surfxml_AS_id)
 135                                 );
 136 }
 137 void parse_ns3_add_cluster(void)
 138 {
 139         char *cluster_prefix = A_surfxml_cluster_prefix;
 140         char *cluster_suffix = A_surfxml_cluster_suffix;
 141         char *cluster_radical = A_surfxml_cluster_radical;
 142         char *cluster_bb_bw = A_surfxml_cluster_bb_bw;
 143         char *cluster_bb_lat = A_surfxml_cluster_bb_lat;
 144         char *cluster_bw = A_surfxml_cluster_bw;
 145         char *cluster_lat = A_surfxml_cluster_lat;
 146         char *groups = NULL;
 147
 148         int start, end, i;
 149         unsigned int iter;
 150
 151         xbt_dynar_t radical_elements;
 152         xbt_dynar_t radical_ends;
 153         xbt_dynar_t tab_elements_num = xbt_dynar_new(sizeof(int), NULL);
 154
 155         char *router_id,*host_id;
 156
 157         radical_elements = xbt_str_split(cluster_radical, ",");
 158         xbt_dynar_foreach(radical_elements, iter, groups) {
 159                 radical_ends = xbt_str_split(groups, "-");
 160
 161                 switch (xbt_dynar_length(radical_ends)) {
 162                 case 1:
 163                   surf_parse_get_int(&start,xbt_dynar_get_as(radical_ends, 0, char *));
 164                   xbt_dynar_push_as(tab_elements_num, int, start);
 165                   router_id = bprintf("ns3_%s%d%s", cluster_prefix, start, cluster_suffix);
 166                   xbt_lib_set(host_lib,
 167                                                 router_id,
 168                                                 NS3_HOST_LEVEL,
 169                                                 ns3_add_host_cluster(router_id)
 170                                                 );
 171                   XBT_DEBUG("NS3_ADD_ROUTER '%s'",router_id);
 172                   free(router_id);
 173                   break;
 174
 175                 case 2:
 176                   surf_parse_get_int(&start,xbt_dynar_get_as(radical_ends, 0, char *));
 177                   surf_parse_get_int(&end, xbt_dynar_get_as(radical_ends, 1, char *));
 178                   for (i = start; i <= end; i++){
 179                         xbt_dynar_push_as(tab_elements_num, int, i);
 180                         router_id = bprintf("ns3_%s%d%s", cluster_prefix, i, cluster_suffix);
 181                         xbt_lib_set(host_lib,
 182                                                 router_id,
 183                                                 NS3_HOST_LEVEL,
 184                                                 ns3_add_host_cluster(router_id)
 185                                                 );
 186                         XBT_DEBUG("NS3_ADD_ROUTER '%s'",router_id);
 187                         free(router_id);
 188                   }
 189                   break;
 190
 191                 default:
 192                   XBT_DEBUG("Malformed radical");
 193                 }
 194         }
 195
 196
 197
 198         //Create links
 199         unsigned int cpt;
 200         int elmts;
 201         char * lat = xbt_strdup(cluster_lat);
 202         char * bw =  xbt_strdup(cluster_bw);
 203         replace_lat_ns3(lat);
 204         replace_bdw_ns3(bw);
 205
 206         xbt_dynar_foreach(tab_elements_num,cpt,elmts)
 207         {
 208                 host_id   = bprintf("%s%d%s", cluster_prefix, elmts, cluster_suffix);
 209                 router_id = bprintf("ns3_%s%d%s", cluster_prefix, elmts, cluster_suffix);
 210                 XBT_DEBUG("Create link from '%s' to '%s'",host_id,router_id);
 211
 212                 ns3_nodes_t host_src = xbt_lib_get_or_null(host_lib,host_id,  NS3_HOST_LEVEL);
 213                 ns3_nodes_t host_dst = xbt_lib_get_or_null(host_lib,router_id,NS3_HOST_LEVEL);
 214
 215                 if(host_src && host_dst){}
 216                 else xbt_die("\tns3_add_link from %d to %d",host_src->node_num,host_dst->node_num);
 217
 218                 ns3_add_link(host_src->node_num,host_dst->node_num,bw,lat);
 219
 220                 free(router_id);
 221                 free(host_id);
 222         }
 223         xbt_dynar_free(&tab_elements_num);
 224
 225
 226         //Create link backbone
 227         lat = xbt_strdup(cluster_bb_lat);
 228         bw =  xbt_strdup(cluster_bb_bw);
 229         replace_lat_ns3(lat);
 230         replace_bdw_ns3(bw);
 231         ns3_add_cluster(bw,lat,A_surfxml_cluster_id);
 232         xbt_free(lat);
 233         xbt_free(bw);
 234 }
 235
 236 double ns3_get_link_latency (const void *link)
 237 {
 238         double lat;
 239         //XBT_DEBUG("link_id:%s link_lat:%s link_bdw:%s",((surf_ns3_link_t)link)->data->id,((surf_ns3_link_t)link)->data->lat,((surf_ns3_link_t)link)->data->bdw);
 240         sscanf(((surf_ns3_link_t)link)->data->lat,"%lg",&lat);
 241         return lat;
 242 }
 243 double ns3_get_link_bandwidth (const void *link)
 244 {
 245         double bdw;
 246         //XBT_DEBUG("link_id:%s link_lat:%s link_bdw:%s",((surf_ns3_link_t)link)->data->id,((surf_ns3_link_t)link)->data->lat,((surf_ns3_link_t)link)->data->bdw);
 247         sscanf(((surf_ns3_link_t)link)->data->bdw,"%lg",&bdw);
 248         return bdw;
 249 }
 250
 251 static xbt_dynar_t ns3_get_route(const char *src, const char *dst)
 252 {
 253   return global_routing->get_route(src, dst);
 254 }
 255
 256 void parse_ns3_end_platform(void)
 257 {
 258         ns3_end_platform();
 259
 260 //        xbt_lib_cursor_t cursor = NULL;
 261 //        char *name = NULL;
 262 //        void **data = NULL;
 263 //        XBT_INFO("link_lib");
 264 //        xbt_lib_foreach(link_lib, cursor, name, data) {
 265 //                      XBT_INFO("\tSee link '%s'\t--> NS3_LEVEL %p",
 266 //                                      name,
 267 //                                      data[NS3_LINK_LEVEL]);
 268 //        }
 269 //        XBT_INFO(" ");
 270 //        XBT_INFO("host_lib");
 271 //        xbt_lib_foreach(host_lib, cursor, name, data) {
 272 //                      XBT_INFO("\tSee host '%s'\t--> NS3_LEVEL %p",
 273 //                                      name,
 274 //                                      data[NS3_HOST_LEVEL]);
 275 //        }
 276 //        XBT_INFO(" ");
 277 //        XBT_INFO("as_router_lib");
 278 //        xbt_lib_foreach(as_router_lib, cursor, name, data) {
 279 //                      XBT_INFO("\tSee ASR '%s'\t--> NS3_LEVEL %p",
 280 //                                      name,
 281 //                                      data[NS3_ASR_LEVEL]);
 282 //        }
 283 //
 284 //        XBT_INFO(" ");
 285 }
 286
 287 /* Create the ns3 topology based on routing strategy */
 288 void create_ns3_topology()
 289 {
 290 //   int src_id,dst_id;
 291
 292    XBT_INFO("Starting topology generation");
 293
 294    //get the onelinks from the parsed platform
 295    xbt_dynar_t onelink_routes = global_routing->get_onelink_routes();
 296    if (!onelink_routes)
 297      xbt_die("There is no routes!");
 298    XBT_INFO("Have get_onelink_routes, found %ld routes",onelink_routes->used);
 299    //save them in trace file
 300    onelink_t onelink;
 301    unsigned int iter;
 302    xbt_dynar_foreach(onelink_routes, iter, onelink) {
 303      char *src = onelink->src;
 304      char *dst = onelink->dst;
 305      void *link = onelink->link_ptr;
 306
 307 //TODO need to uncomment those two line
 308 //     src_id = *((int *) xbt_dict_get_or_null(global_routing->root->to_index,src));
 309 //     dst_id = *((int *) xbt_dict_get_or_null(global_routing->root->to_index,dst));
 310
 311 //   if( (src_id != dst_id) && ((surf_ns3_link_t)link)->created){
 312      if( strcmp(src,dst) && ((surf_ns3_link_t)link)->created){
 313      XBT_INFO("Route from '%s' to '%s' with link '%s'",src,dst,((surf_ns3_link_t)link)->data->id);
 314      char * link_bdw = xbt_strdup(((surf_ns3_link_t)link)->data->bdw);
 315          char * link_lat = xbt_strdup(((surf_ns3_link_t)link)->data->lat);
 316          ((surf_ns3_link_t)link)->created = 0;
 317
 318          replace_bdw_ns3(link_bdw);
 319          replace_lat_ns3(link_lat);
 320 //       XBT_INFO("src (%s), dst (%s), src_id = %d, dst_id = %d",src,dst, src_id, dst_id);
 321      XBT_INFO("\tLink (%s) bdw:%s->%s lat:%s->%s",((surf_ns3_link_t)link)->data->id,
 322                  ((surf_ns3_link_t)link)->data->bdw,link_bdw,
 323                  ((surf_ns3_link_t)link)->data->lat,link_lat
 324                  );
 325
 326      //create link ns3
 327      ns3_nodes_t host_src = xbt_lib_get_or_null(host_lib,src,NS3_HOST_LEVEL);
 328      if(!host_src) host_src = xbt_lib_get_or_null(as_router_lib,src,NS3_ASR_LEVEL);
 329      ns3_nodes_t host_dst = xbt_lib_get_or_null(host_lib,dst,NS3_HOST_LEVEL);
 330      if(!host_dst) host_dst = xbt_lib_get_or_null(as_router_lib,dst,NS3_ASR_LEVEL);
 331
 332      if(host_src && host_dst){}
 333      else xbt_die("\tns3_add_link from %d to %d",host_src->node_num,host_dst->node_num);
 334
 335      ns3_add_link(host_src->node_num,host_dst->node_num,link_bdw,link_lat);
 336
 337      xbt_free(link_bdw);
 338      xbt_free(link_lat);
 339      }
 340    }
 341 }
 342
 343 static void define_callbacks_ns3(const char *filename)
 344 {
 345   surfxml_add_callback(STag_surfxml_host_cb_list, &parse_ns3_add_host);       //HOST
 346   surfxml_add_callback(STag_surfxml_router_cb_list, &parse_ns3_add_router);       //ROUTER
 347   surfxml_add_callback(STag_surfxml_link_cb_list, &parse_ns3_add_link);       //LINK
 348   surfxml_add_callback(STag_surfxml_AS_cb_list, &parse_ns3_add_AS);                   //AS
 349   surfxml_add_callback(STag_surfxml_cluster_cb_list, &parse_ns3_add_cluster); //CLUSTER
 350
 351   surfxml_add_callback(ETag_surfxml_platform_cb_list, &create_ns3_topology);    //get_one_link_routes
 352   surfxml_add_callback(ETag_surfxml_platform_cb_list, &parse_ns3_end_platform); //InitializeRoutes
 353 }
 354
 355 static void free_ns3_elmts(void * elmts)
 356 {
 357 }
 358
 359 static void free_ns3_link(void * elmts)
 360 {
 361         ns3_link_t link = elmts;
 362         free(link->id);
 363         free(link->bdw);
 364         free(link->lat);
 365         free(link);
 366 }
 367
 368 static void free_ns3_host(void * elmts)
 369 {
 370         ns3_nodes_t host = elmts;
 371         free(host);
 372 }
 373
 374 void surf_network_model_init_NS3(const char *filename)
 375 {
 376         surf_network_model = surf_model_init();
 377         surf_network_model->name = "network NS3";
 378         surf_network_model->extension.network.get_link_latency = ns3_get_link_latency;
 379         surf_network_model->extension.network.get_link_bandwidth = ns3_get_link_bandwidth;
 380         surf_network_model->extension.network.get_route = ns3_get_route;
 381         routing_model_create(sizeof(s_surf_ns3_link_t), NULL, NULL);
 382         define_callbacks_ns3(filename);
 383
 384         NS3_HOST_LEVEL = xbt_lib_add_level(host_lib,(void_f_pvoid_t)free_ns3_host);
 385         NS3_ASR_LEVEL  = xbt_lib_add_level(as_router_lib,(void_f_pvoid_t)free_ns3_host);
 386         NS3_LINK_LEVEL = xbt_lib_add_level(link_lib,(void_f_pvoid_t)free_ns3_link);
 387
 388         update_model_description(surf_network_model_description,
 389                     "NS3", surf_network_model);
 390 }