doxygen updates - include IPv6 in documentation. Exclude include/netif/ppp/polarssl.

Convert TODO -> @todo

src/apps/httpd/makefsdata/makefsdata.c

@@ -727,7 +727,7 @@ int process_file(FILE *data_file, FILE *struct_file, const char *filename)
   u8_t* file_data;
   int is_compressed = 0;
 
-  /* create qualified name (TODO: prepend slash or not?) */
+  /* create qualified name (@todo: prepend slash or not?) */
   sprintf(qualifiedName,"%s/%s", curSubdir, filename);
   /* create C variable name */
   strcpy(varname, qualifiedName);

src/apps/lwiperf/lwiperf.c

@@ -373,7 +373,7 @@ lwiperf_tx_start(lwiperf_state_tcp_t* conn)
   client_conn->base.server = 0;
   client_conn->server_pcb = NULL;
   client_conn->conn_pcb = newpcb;
-  client_conn->time_started = sys_now(); /* TODO: set this again on 'connected' */
+  client_conn->time_started = sys_now(); /* @todo: set this again on 'connected' */
   client_conn->poll_count = 0;
   client_conn->next_num = 4; /* initial nr is '4' since the header has 24 byte */
   client_conn->bytes_transferred = 0;
@@ -639,7 +639,7 @@ lwiperf_abort(void* lwiperf_session)
       if (last != NULL) {
         last->next = i;
       }
-      LWIPERF_FREE(lwiperf_state_tcp_t, dealloc); /* TODO: type? */
+      LWIPERF_FREE(lwiperf_state_tcp_t, dealloc); /* @todo: type? */
     } else {
       last = i;
       i = i->next;

src/apps/snmp/snmp_msg.c

@@ -636,7 +636,7 @@ snmp_parse_inbound_frame(struct snmp_request *request)
     u16_t u16_value;
 
     /* SNMPv3 doesn't use communities */
-    /* TODO: Differentiate read/write access */
+    /* @todo: Differentiate read/write access */
     strcpy((char*)request->community, snmp_community);
     request->community_strlen = strlen(snmp_community);
 
@@ -723,7 +723,7 @@ snmp_parse_inbound_frame(struct snmp_request *request)
     parent_tlv_value_len -= SNMP_ASN1_TLV_LENGTH(tlv);
     IF_PARSE_ASSERT(parent_tlv_value_len > 0);
     IF_PARSE_EXEC(snmp_asn1_dec_s32t(&pbuf_stream, tlv.value_len, &request->msg_authoritative_engine_time));
-    /* TODO: Implement time window checking */
+    /* @todo: Implement time window checking */
 
     /* msgUserName */
     IF_PARSE_EXEC(snmp_asn1_dec_tlv(&pbuf_stream, &tlv));
@@ -734,7 +734,7 @@ snmp_parse_inbound_frame(struct snmp_request *request)
     IF_PARSE_EXEC(snmp_asn1_dec_raw(&pbuf_stream, tlv.value_len, request->msg_user_name,
         &u16_value, SNMP_V3_MAX_USER_LENGTH));
     request->msg_user_name_len = u16_value;
-    /* TODO: Implement unknown user error response */
+    /* @todo: Implement unknown user error response */
     IF_PARSE_EXEC(snmpv3_get_user((char*)request->msg_user_name, NULL, NULL, NULL, NULL));
 
     /* msgAuthenticationParameters */
@@ -769,12 +769,12 @@ snmp_parse_inbound_frame(struct snmp_request *request)
 
       IF_PARSE_EXEC(snmpv3_get_user((char*)request->msg_user_name, &algo, key, NULL, NULL));
       IF_PARSE_EXEC(snmpv3_auth(&auth_stream, request->inbound_pbuf->tot_len, key, algo, hmac));
-      /* TODO: Implement error response */
+      /* @todo: Implement error response */
       IF_PARSE_EXEC(memcmp(request->msg_authentication_parameters, hmac, SNMP_V3_MAX_AUTH_PARAM_LENGTH));
     }
 #else
     /* Ungraceful exit if we encounter cryptography and don't support it.
-     * TODO: Implement error response
+     * @todo: Implement error response
      */
     IF_PARSE_ASSERT(!(request->msg_flags & (SNMP_V3_AUTH_FLAG | SNMP_V3_PRIV_FLAG)));
 #endif

src/apps/snmp/snmpv3.c

@@ -98,7 +98,7 @@ snmpv3_get_engine_time_internal(void)
  *
  * Implementing RFC3826 priv param algorithm if LWIP_RAND is available.
  *
- * TODO: This is a potential thread safety issue.
+ * @todo: This is a potential thread safety issue.
  */
 err_t
 snmpv3_build_priv_param(u8_t* priv_param)