lwip-2.1.0 IPv6-enabled (#21)

update to lwIP-2.1.0
SACK-out: option
IPv6: option
fragmentation / reassembly: option

Author: d-a-v

Makefile.arduino

@@ -1,26 +1,20 @@
 
-# stable MSS: 536..896
-# unstable: 1024 1460
-
 %:
-	make -f makefiles/Makefile.build-lwip2 \
-			target=arduino \
-			SDK=../.. \
-			LWIP_ESP=../../lwip/include \
-			LWIP_LIB=liblwip2.a \
-			LWIP_LIB_RELEASE=../../lib/liblwip2.a \
-			LWIP_INCLUDES_RELEASE=../include \
-			TOOLS=../../../xtensa-lx106-elf/bin/xtensa-lx106-elf- \
-			TCP_MSS=536 BUILD=build-536 \
-			$@
-
-	make -f makefiles/Makefile.build-lwip2 \
+	for v6 in 0 1; do \
+	for mss in 536 1460; do \
+	for feat in 0 1; do \
+		test \( $$feat = 0 \) -a \( $$v6 = 1 \) && continue; \
+		featname= ;\
+		test $$feat = 1 && featname=-feat ;\
+		make -f makefiles/Makefile.build-lwip2 \
 			target=arduino \
 			SDK=../.. \
 			LWIP_ESP=../../lwip/include \
-			LWIP_LIB=liblwip2_1460.a \
-			LWIP_LIB_RELEASE=../../lib/liblwip2_1460.a \
+			LWIP_LIB=liblwip$$((2+4*v6))-$$mss$$featname.a \
+			LWIP_LIB_RELEASE=../../lib/liblwip$$((2+4*v6))-$$mss$$featname.a \
 			LWIP_INCLUDES_RELEASE=../include \
 			TOOLS=../../../xtensa-lx106-elf/bin/xtensa-lx106-elf- \
-			TCP_MSS=1460 BUILD=build-1460 \
-			$@
+			TCP_MSS=$$mss LWIP_FEATURES=$$feat LWIP_IPV6=$$v6 \
+			BUILD=build-$$mss$$featname-v$$((4+2*v6)) \
+			$@ ; \
+	done; done; done

glue-lwip/arch/cc.h

@@ -62,6 +62,7 @@ typedef uint32_t sys_prot_t;	// not really used
 #define SYS_ARCH_DECL_PROTECT(lev)
 #define SYS_ARCH_PROTECT(lev) os_intr_lock()
 #define SYS_ARCH_UNPROTECT(lev) os_intr_unlock()
+#define LWIP_NO_CTYPE_H 1
 
 ///////////////////////////////
 //// DEBUG
@@ -89,14 +90,14 @@ typedef uint32_t sys_prot_t;	// not really used
     ip4_addr3_16(ipaddr), \
     ip4_addr4_16(ipaddr)
 
-// ip_addr / ip_info: do not exist in lwip2 (only in lwip1.4)
-struct ip_addr {
+// ipv4_addr / ip_info: do not exist in lwip2 (only in lwip1.4)
+struct ipv4_addr {
   uint32_t addr;
 };
 struct ip_info {
-    struct ip_addr ip;
-    struct ip_addr netmask;
-    struct ip_addr gw;
+    struct ipv4_addr ip;
+    struct ipv4_addr netmask;
+    struct ipv4_addr gw;
 };
 
 ///////////////////////////////