lwip2: 3 sntp servers, autoip (169.254), esp-ping, espconn (#5444)

* lwip2: better handling of ipv4_addr/t type + 3 sntp servers

* bump lwip2 version

* Only with FEATURES=1: 3 sntp servers and AutoIP enabled (169.254 when dhcp server fails)

* Only with FEATURES=1: 3 sntp servers and AutoIP enabled (169.254 when dhcp server fails)

* local CI runner: select build type

* new ipv4_addr/t definition makes things easier for IPAddress

* update local CI runner

* lwip2 changes

* lwip2: port esp-ping and espconn

Author: d-a-v

cores/esp8266/IPAddress.h

@@ -152,11 +152,6 @@ class IPAddress: public Printable {
         IPAddress(const ipv4_addr* fw_addr)   { setV4(); v4() = fw_addr->addr; }
         IPAddress(const ip_addr_t& lwip_addr) { _ip = lwip_addr; }
 
-#if LWIP_VERSION_MAJOR != 1
-        IPAddress(ipv4_addr fw_addr)          { setV4(); v4() = fw_addr.addr; }
-        IPAddress(const ip_addr_t* lwip_addr) { _ip = *lwip_addr; }
-#endif
-
         operator       ip_addr_t () const { return  _ip; }
         operator const ip_addr_t*() const { return &_ip; }
         operator       ip_addr_t*()       { return &_ip; }

tests/run_CI_locally.sh

@@ -47,4 +47,37 @@ if [ "$branch" != "$branch" ]; then
 	exit 1
 fi
 rm -rf arduino_ide arduino-nightly Arduino/libraries/ArduinoJson
-HOME=${TMPCI} TRAVIS_BUILD_DIR=${TMPCI} BUILD_TYPE=build tests/common.sh
+
+while true; do
+
+	cat << EOF
+Which build?
+1. main
+2. debug even
+3. debug odd
+4. platformio
+5. package
+6. host
+7. style
+EOF
+
+	read ans
+
+	BUILD_TYPE=""
+	case "$ans" in
+		1) BUILD_TYPE=build;;
+		2) BUILD_TYPE=debug_even;;
+		3) BUILD_TYPE=debug_odd;;
+		4) BUILD_TYPE=platformio;;
+		5) BUILD_TYPE=package;;
+		6) BUILD_TYPE=host;;
+		7) BUILD_TYPE=style;;
+	esac
+	test -z "$BUILD_TYPE" || break
+done
+
+# use pip2 for python2 with python3 is around, platformio doesn't like it
+cp tests/common.sh tests/common-custom.sh
+sed -i 's,pip ,pip2 ,g' tests/common-custom.sh
+
+HOME=${TMPCI} TRAVIS_BUILD_DIR=${TMPCI} BUILD_TYPE=$BUILD_TYPE tests/common-custom.sh

tools/sdk/include/ip_addr.h

@@ -26,23 +26,12 @@
 #define __IP_ADDR_H__
 
 #include "c_types.h"
+#include "ipv4_addr.h"
 
 #ifdef __cplusplus
 extern "C" {
 #endif
 
-struct ipv4_addr {
-    uint32 addr;
-};
-
-typedef struct ipv4_addr ipv4_addr_t;
-
-struct ip_info {
-    struct ipv4_addr ip;
-    struct ipv4_addr netmask;
-    struct ipv4_addr gw;
-};
-
 /**
  * Determine if two address are on the same network.
  *

tools/sdk/include/ipv4_addr.h

@@ -0,0 +1,61 @@
+/*
+ * ESPRESSIF MIT License
+ *
+ * Copyright (c) 2016 <ESPRESSIF SYSTEMS (SHANGHAI) PTE LTD>
+ *
+ * Permission is hereby granted for use on ESPRESSIF SYSTEMS ESP8266 only, in which case,
+ * it is free of charge, to any person obtaining a copy of this software and associated
+ * documentation files (the "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the Software is furnished
+ * to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all copies or
+ * substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ */
+
+#ifndef __IPV4_ADDR_H__
+#define __IPV4_ADDR_H__
+
+#include <stdint.h>
+#include <lwip/init.h>
+
+// ipv4_addr is necessary for lwIP-v2 because
+// - espressif binary firmware is IPv4 only, under the name of ip_addr/_t
+// - ip_addr/_t is different when IPv6 is enabled with lwIP-v2
+// hence ipv4_addr/t is IPv4 version/copy of IPv4 ip_addr/_t
+// when IPv6 is enabled so we can deal with IPv4 use from firmware API.
+
+// official lwIP's definitions (1.4 or 2)
+#include "lwip/ip_addr.h"
+
+///////////////////////////////////////////////
+#if LWIP_VERSION_MAJOR == 1
+
+#define ipv4_addr ip_addr
+
+///////////////////////////////////////////////
+#else // lwIP-v2
+
+#define ipv4_addr ip4_addr
+#define ipv4_addr_t ip4_addr_t
+
+// defined in lwip-v1.4 sources only, used in fw
+struct ip_info {
+    struct ipv4_addr ip;
+    struct ipv4_addr netmask;
+    struct ipv4_addr gw;
+};
+
+///////////////////////////////////////////////
+#endif // lwIP-v2
+
+#endif // __IPV4_ADDR_H__

tools/sdk/include/user_interface.h

@@ -28,14 +28,7 @@
 #include "os_type.h"
 #ifdef LWIP_OPEN_SRC
 
-#include "lwip/init.h"
-#if LWIP_VERSION_MAJOR == 1
-#define ipv4_addr ip_addr
-#endif
-#include "lwip/ip_addr.h"
-#if LWIP_VERSION_MAJOR != 1
-typedef struct ip4_addr ipv4_addr_t;
-#endif
+#include "ipv4_addr.h"
 
 #else
 #error LWIP_OPEN_SRC must be defined