optionally do not send recovery with sgsnemu

According to 3GPP TS 29.060 recovery is optional, add command line option --norecovery to remove this field in sgsnemu

Signed-off-by: Yann BONNAMY <yann_bonnamy@yahoo.fr>
Signed-off-by: Harald Welte <laforge@gnumonks.org>

gtp/gtp.c

@@ -1056,7 +1056,8 @@ extern int gtp_create_context_req(struct gsn_t *gsn, struct pdp_t *pdp,
 
 
   /* Section 7.7.11 */
-  gtpie_tv1(&packet, &length, GTP_MAX, GTPIE_RECOVERY, 
+  if (pdp->norecovery_given == 0)
+    gtpie_tv1(&packet, &length, GTP_MAX, GTPIE_RECOVERY,
 	    gsn->restart_counter);
 
   /* Section 7.7.12 */

gtp/pdp.h

@@ -198,6 +198,7 @@ struct pdp_t {
   int    mstz_given;  /* MS Time Zone given*/
   struct ul255_t    imeisv;  /* IMEI Software Version */
   int    imeisv_given;  /* IMEI Software Version given*/
+  int    norecovery_given;  /* norecovery given*/
 
   /* Additional parameters used by library */
 

sgsnemu/cmdline.c

@@ -66,6 +66,7 @@ const char *gengetopt_args_info_help[] = {
   "      --pingsize=INT     Number of ping data bytes  (default=`56')",
   "      --pingcount=INT    Number of ping req to send  (default=`0')",
   "      --pingquiet        Do not print ping packet info  (default=off)",
+  "      --norecovery       Do not send recovery (default=off)",
     0
 };
 
@@ -148,6 +149,7 @@ void clear_given (struct gengetopt_args_info *args_info)
   args_info->pingsize_given = 0 ;
   args_info->pingcount_given = 0 ;
   args_info->pingquiet_given = 0 ;
+  args_info->norecovery_given = 0 ;
 }
 
 static
@@ -225,6 +227,7 @@ void clear_args (struct gengetopt_args_info *args_info)
   args_info->pingcount_arg = 0;
   args_info->pingcount_orig = NULL;
   args_info->pingquiet_flag = 0;
+  args_info->norecovery_flag = 0;
   
 }
 
@@ -262,6 +265,7 @@ void init_args_info(struct gengetopt_args_info *args_info)
   args_info->pingsize_help = gengetopt_args_info_help[28] ;
   args_info->pingcount_help = gengetopt_args_info_help[29] ;
   args_info->pingquiet_help = gengetopt_args_info_help[30] ;
+  args_info->norecovery_help = gengetopt_args_info_help[31] ;
   
 }
 
@@ -708,6 +712,9 @@ cmdline_parser_file_save(const char *filename, struct gengetopt_args_info *args_
   if (args_info->pingquiet_given) {
     fprintf(outfile, "%s\n", "pingquiet");
   }
+  if (args_info->norecovery_given) {
+    fprintf(outfile, "%s\n", "norecovery");
+  }
   
   fclose (outfile);
 
@@ -830,6 +837,7 @@ cmdline_parser_internal (int argc, char * const *argv, struct gengetopt_args_inf
         { "pingsize",	1, NULL, 0 },
         { "pingcount",	1, NULL, 0 },
         { "pingquiet",	0, NULL, 0 },
+        { "norecovery",	0, NULL, 0 },
         { NULL,	0, NULL, 0 }
       };
 
@@ -1529,6 +1537,20 @@ cmdline_parser_internal (int argc, char * const *argv, struct gengetopt_args_inf
             args_info->pingquiet_given = 1;
             args_info->pingquiet_flag = !(args_info->pingquiet_flag);
           }
+          /* Do not send recovery.  */
+          else if (strcmp (long_options[option_index].name, "norecovery") == 0)
+          {
+            if (local_args_info.norecovery_given)
+              {
+                fprintf (stderr, "%s: `--norecovery' option given more than once%s\n", argv[0], (additional_error ? additional_error : ""));
+                goto failure;
+              }
+            if (args_info->norecovery_given && ! override)
+              continue;
+            local_args_info.norecovery_given = 1;
+            args_info->norecovery_given = 1;
+            args_info->norecovery_flag = !(args_info->norecovery_flag);
+          }
           
           break;
         case '?':	/* Invalid option.  */

sgsnemu/cmdline.h

@@ -132,6 +132,8 @@ struct gengetopt_args_info
   const char *pingcount_help; /* Number of ping req to send help description.  */
   int pingquiet_flag;	/* Do not print ping packet info (default=off).  */
   const char *pingquiet_help; /* Do not print ping packet info help description.  */
+  int norecovery_flag;	/* Do not print ping packet info (default=off).  */
+  const char *norecovery_help; /* Do not print ping packet info help description.  */
   
   int help_given ;	/* Whether help was given.  */
   int version_given ;	/* Whether version was given.  */
@@ -173,6 +175,7 @@ struct gengetopt_args_info
   int pingsize_given ;	/* Whether pingsize was given.  */
   int pingcount_given ;	/* Whether pingcount was given.  */
   int pingquiet_given ;	/* Whether pingquiet was given.  */
+  int norecovery_given ;	/* Whether norecovery was given.  */
 
 } ;
 

sgsnemu/sgsnemu.c

@@ -115,6 +115,7 @@ struct {
   struct ul255_t imeisv;
   int imeisv_given;
   struct ul16_t msisdn;
+  int norecovery_given;
 } options;
 
 
@@ -272,6 +273,7 @@ int process_options(int argc, char **argv) {
     printf("pingsize: %d\n", args_info.pingsize_arg);
     printf("pingcount: %d\n", args_info.pingcount_arg);
     printf("pingquiet: %d\n", args_info.pingquiet_flag);
+    printf("norecovery: %d\n", args_info.norecovery_flag);
   }
 
   /* Try out our new parser */
@@ -310,6 +312,7 @@ int process_options(int argc, char **argv) {
       printf("pingsize: %d\n", args_info.pingsize_arg);
       printf("pingcount: %d\n", args_info.pingcount_arg);
       printf("pingquiet: %d\n", args_info.pingquiet_flag);
+      printf("norecovery: %d\n", args_info.norecovery_flag);
     }
   }
 
@@ -861,6 +864,9 @@ int process_options(int argc, char **argv) {
   options.pingcount = args_info.pingcount_arg;
   options.pingquiet = args_info.pingquiet_flag;
 
+  /* norecovery */
+  options.norecovery_given = args_info.norecovery_flag;
+
   return 0;
 
 }
@@ -1465,6 +1471,8 @@ int main(int argc, char **argv)
     memcpy(pdp->imeisv.v, options.imeisv.v, options.imeisv.l);
     pdp->imeisv_given = options.imeisv_given;
 
+    pdp->norecovery_given = options.norecovery_given;
+
     if (options.apn.l > sizeof(pdp->apn_use.v)) {
       sys_err(LOG_ERR, __FILE__, __LINE__, 0, "APN length too big");
       exit(1);