update lwip2 include files (now stable-2.0.3) + fix typedef lwip_err_t (get it from arduino's sdk lwip1.4)

Author: d-a-v

tools/sdk/lib/liblwip2.a

@@ -34,6 +34,8 @@ author: d. gauchard
 
 #include "stdint.h"
 
+#include "lwip-err-t.h"
+
 #ifdef LWIP_BUILD
 
 // define LWIP_BUILD only when building LWIP

tools/sdk/lwip2/builder

@@ -0,0 +1,10 @@
+// script-generated, extracted from espressif SDK's lwIP arch/cc.h
+#define LWIP_NO_STDINT_H 1
+typedef unsigned   char    u8_t;
+typedef signed     char    s8_t;
+typedef unsigned   short   u16_t;
+typedef signed     short   s16_t;
+typedef unsigned   long    u32_t;
+typedef signed     long    s32_t;
+typedef unsigned long   mem_ptr_t;
+#define LWIP_ERR_T s32_t

tools/sdk/lwip2/include/arch/cc.h

@@ -1,6 +1,6 @@
 // generated by makefiles/make-lwip2-hash
 #ifndef LWIP_HASH_H
 #define LWIP_HASH_H
-#define LWIP_HASH 0xc0862d6
-#define LWIP_HASH_STR "c0862d6(tag:STABLE-2_0_2_RELEASE_VER)"
+#define LWIP_HASH 0x92f23d6
+#define LWIP_HASH_STR "92f23d6(tag:STABLE-2_0_3_RELEASE)"
 #endif // LWIP_HASH_H

tools/sdk/lwip2/include/lwip-err-t.h

@@ -91,14 +91,6 @@ u32_t lwip_htonl(u32_t x);
 #endif
 #define lwip_ntohl(x) lwip_htonl(x)
 
-/* Provide usual function names as macros for users, but this can be turned off */
-#ifndef LWIP_DONT_PROVIDE_BYTEORDER_FUNCTIONS
-#define htons(x) lwip_htons(x)
-#define ntohs(x) lwip_ntohs(x)
-#define htonl(x) lwip_htonl(x)
-#define ntohl(x) lwip_ntohl(x)
-#endif
-
 /* These macros should be calculated by the preprocessor and are used
    with compile-time constants only (so that there is no little-endian
    overhead at runtime). */
@@ -109,9 +101,16 @@ u32_t lwip_htonl(u32_t x);
                      (((x) & 0x00ff0000UL) >>  8) | \
                      (((x) & 0xff000000UL) >> 24))
 #define PP_NTOHL(x) PP_HTONL(x)
-
 #endif /* BYTE_ORDER == BIG_ENDIAN */
 
+/* Provide usual function names as macros for users, but this can be turned off */
+#ifndef LWIP_DONT_PROVIDE_BYTEORDER_FUNCTIONS
+#define htons(x) lwip_htons(x)
+#define ntohs(x) lwip_ntohs(x)
+#define htonl(x) lwip_htonl(x)
+#define ntohl(x) lwip_ntohl(x)
+#endif
+
 /* Functions that are not available as standard implementations.
  * In cc.h, you can #define these to implementations available on
  * your platform to save some code bytes if you use these functions

tools/sdk/lwip2/include/lwip-git-hash.h

@@ -108,7 +108,7 @@ struct dhcp
 
 void dhcp_set_struct(struct netif *netif, struct dhcp *dhcp);
 /** Remove a struct dhcp previously set to the netif using dhcp_set_struct() */
-#define dhcp_remove_struct(netif) do { (netif)->dhcp = NULL; } while(0)
+#define dhcp_remove_struct(netif) netif_set_client_data(netif, LWIP_NETIF_CLIENT_DATA_INDEX_DHCP, NULL)
 void dhcp_cleanup(struct netif *netif);
 err_t dhcp_start(struct netif *netif);
 err_t dhcp_renew(struct netif *netif);

tools/sdk/lwip2/include/lwip/def.h

@@ -54,7 +54,7 @@ extern "C" {
 /** x.X.x: Minor version of the stack */
 #define LWIP_VERSION_MINOR      0
 /** x.x.X: Revision of the stack */
-#define LWIP_VERSION_REVISION   2
+#define LWIP_VERSION_REVISION   3
 /** For release candidates, this is set to 1..254
   * For official releases, this is set to 255 (LWIP_RC_RELEASE)
   * For development versions (Git), this is set to 0 (LWIP_RC_DEVELOPMENT) */

tools/sdk/lwip2/include/lwip/dhcp.h

@@ -38,6 +38,8 @@
 #ifndef LWIP_HDR_MEMP_H
 #define LWIP_HDR_MEMP_H
 
+#include "lwip/opt.h"
+
 #ifdef __cplusplus
 extern "C" {
 #endif

tools/sdk/lwip2/include/lwip/init.h

@@ -387,9 +387,9 @@ void stats_init(void);
 
 #if MEM_STATS
 #define MEM_STATS_AVAIL(x, y) lwip_stats.mem.x = y
-#define MEM_STATS_INC(x) STATS_INC(mem.x)
-#define MEM_STATS_INC_USED(x, y) STATS_INC_USED(mem, y)
-#define MEM_STATS_DEC_USED(x, y) lwip_stats.mem.x -= y
+#define MEM_STATS_INC(x) SYS_ARCH_INC(lwip_stats.mem.x, 1)
+#define MEM_STATS_INC_USED(x, y) SYS_ARCH_INC(lwip_stats.mem.x, y)
+#define MEM_STATS_DEC_USED(x, y) SYS_ARCH_DEC(lwip_stats.mem.x, y)
 #define MEM_STATS_DISPLAY() stats_display_mem(&lwip_stats.mem, "HEAP")
 #else
 #define MEM_STATS_AVAIL(x, y)