SNMP: Fixed leafref index issue and table min-column issue for mult index

apps/snmp/snmp_handler.c

@@ -489,11 +489,14 @@ snmp_table_get(clicon_handle               h,
     while ((ys = yn_each(yt, ys)) != NULL) {
 	if (yang_keyword_get(ys) != Y_LEAF)
 	    continue;
+	/* reset oid */
+	oidleaflen = MAX_OID_LEN;
 	if ((ret = yangext_oid_get(ys, oidleaf, &oidleaflen, NULL)) < 0)
 	    goto done;
 	if (ret == 0)
 	    goto done;
-	assert(oidtlen + 1 == oidleaflen);
+	if (oidtlen + 1 != oidleaflen) /* Indexes may be from other OID scope, skip those */
+	    continue;
 	if (oids[oidleaflen-1] == oidleaf[oidleaflen-1])
 	    break;
     }

apps/snmp/snmp_main.c

@@ -35,9 +35,11 @@
   * It assumes a netsnmp damon is running. 
   * - If netsnmp does not run, clixon_snmp will not start
   * - If netsnmp dies, clixon_snmp will exit
-  * - If netsnmp is restarted, so should clixon_snmp be
+  * - If netsnmp is restarted, clixon_snmp  should also be restarted
   * It is possible to be more resilient, such as setting a timer and trying again, in fact, libnetsnmp
-  * has some such mechanisms
+  * has some such mechanisms but these are NOT implemented
+  * @see RFC 6643 Translation of Structure of Management Information Version 2 (SMIv2)
+  *               MIB Modules to YANG Modules
  */
 
 #ifdef HAVE_CONFIG_H

apps/snmp/snmp_register.c

@@ -312,7 +312,7 @@ mibyang_table_register(clicon_handle h,
 	    goto done;
 	}
     }
-    table_info->min_column = cvec_len(cvk);
+    table_info->min_column = 1;
 
     /* Count columns */
     yleaf = NULL;