update to lwIP-2.1.0: partial SACK support by default (de-selectable in menu) (#5126)

* update to lwIP-2.1.0rc1: partial SACK support fix #4176 * hash fix * get some flash back due to mistake in conf (fragmentation & reassembly was incorrectly enabled) (ahah I scared you) * add missing include files * update to lwip-2.1.0(release) + remove unused lwIP's include files * lwIP release 2.1.0, SACK is now default, bigger, no-SACK is selectable * fix ldscript * pio * rename 'sack' option to 'feat'ure option, + IP fragmentation/reassembly * merge, fix pio * change internal/hidden string * pio: more lwip2 configuration: + without sack for no change in flash footprint
2025-06-12 01:53:07 +03:00 · 2018-10-09 21:27:27 +02:00
parent 3c13751bcf
commit a1e59e9c01
130 changed files with 4743 additions and 9212 deletions
--- a/tools/sdk/lwip2/include/lwip/prot/dhcp.h
+++ b/tools/sdk/lwip2/include/lwip/prot/dhcp.h
@ -39,15 +39,13 @@
 #define LWIP_HDR_PROT_DHCP_H

 #include "lwip/opt.h"
+#include "lwip/arch.h"
+#include "lwip/prot/ip4.h"

 #ifdef __cplusplus
 extern "C" {
 #endif

-#define DHCP_CLIENT_PORT  68
-#define DHCP_SERVER_PORT  67
-
-
 /* DHCP message item offsets and length */
 #define DHCP_CHADDR_LEN   16U
 #define DHCP_SNAME_OFS    44U
@ -128,9 +126,6 @@ typedef enum {
 #define DHCP_RELEASE                7
 #define DHCP_INFORM                 8

-/** DHCP hardware type, currently only ethernet is supported */
-#define DHCP_HTYPE_ETH              1
-
 #define DHCP_MAGIC_COOKIE           0x63825363UL

 /* This is a list of options for BOOTP and DHCP, see RFC 2132 for descriptions */
@ -180,4 +175,4 @@ typedef enum {
 }
 #endif

-#endif /*LWIP_HDR_PROT_DHCP_H*/
+#endif /* LWIP_HDR_PROT_DHCP_H */
--- a/tools/sdk/lwip2/include/lwip/prot/dhcp6.h
+++ b/tools/sdk/lwip2/include/lwip/prot/dhcp6.h
@ -0,0 +1,138 @@
+/**
+ * @file
+ * DHCPv6 protocol definitions
+ */
+
+/*
+ * Copyright (c) 2017 Simon Goldschmidt <goldsimon@gmx.de>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Simon Goldschmidt <goldsimon@gmx.de>
+ *
+ */
+#ifndef LWIP_HDR_PROT_DHCP6_H
+#define LWIP_HDR_PROT_DHCP6_H
+
+#include "lwip/opt.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define DHCP6_CLIENT_PORT  546
+#define DHCP6_SERVER_PORT  547
+
+
+ /* DHCPv6 message item offsets and length */
+#define DHCP6_TRANSACTION_ID_LEN   3
+
+#ifdef PACK_STRUCT_USE_INCLUDES
+#  include "arch/bpstruct.h"
+#endif
+PACK_STRUCT_BEGIN
+/** minimum set of fields of any DHCPv6 message */
+struct dhcp6_msg
+{
+  PACK_STRUCT_FLD_8(u8_t msgtype);
+  PACK_STRUCT_FLD_8(u8_t transaction_id[DHCP6_TRANSACTION_ID_LEN]);
+  /* options follow */
+} PACK_STRUCT_STRUCT;
+PACK_STRUCT_END
+#ifdef PACK_STRUCT_USE_INCLUDES
+#  include "arch/epstruct.h"
+#endif
+
+
+/* DHCP6 client states */
+typedef enum {
+  DHCP6_STATE_OFF               = 0,
+  DHCP6_STATE_STATELESS_IDLE    = 1,
+  DHCP6_STATE_REQUESTING_CONFIG = 2
+} dhcp6_state_enum_t;
+
+/* DHCPv6 message types */
+#define DHCP6_SOLICIT               1
+#define DHCP6_ADVERTISE             2
+#define DHCP6_REQUEST               3
+#define DHCP6_CONFIRM               4
+#define DHCP6_RENEW                 5
+#define DHCP6_REBIND                6
+#define DHCP6_REPLY                 7
+#define DHCP6_RELEASE               8
+#define DHCP6_DECLINE               9
+#define DHCP6_RECONFIGURE           10
+#define DHCP6_INFOREQUEST           11
+#define DHCP6_RELAYFORW             12
+#define DHCP6_RELAYREPL             13
+/* More message types see https://www.iana.org/assignments/dhcpv6-parameters/dhcpv6-parameters.xhtml */
+
+/** DHCPv6 status codes */
+#define DHCP6_STATUS_SUCCESS        0 /* Success. */
+#define DHCP6_STATUS_UNSPECFAIL     1 /* Failure, reason unspecified; this status code is sent by either a client or a server to indicate a failure not explicitly specified in this document. */
+#define DHCP6_STATUS_NOADDRSAVAIL   2 /* Server has no addresses available to assign to the IA(s). */
+#define DHCP6_STATUS_NOBINDING      3 /* Client record (binding) unavailable. */
+#define DHCP6_STATUS_NOTONLINK      4 /* The prefix for the address is not appropriate for the link to which the client is attached. */
+#define DHCP6_STATUS_USEMULTICAST   5 /* Sent by a server to a client to force the client to send messages to the server using the All_DHCP_Relay_Agents_and_Servers address. */
+/* More status codes see https://www.iana.org/assignments/dhcpv6-parameters/dhcpv6-parameters.xhtml */
+
+/** DHCPv6 DUID types */
+#define DHCP6_DUID_LLT              1 /* LLT: Link-layer Address Plus Time */
+#define DHCP6_DUID_EN               2 /* EN: Enterprise number */
+#define DHCP6_DUID_LL               3 /* LL: Link-layer Address */
+#define DHCP6_DUID_UUID             4 /* UUID (RFC 6355) */
+
+/* DHCPv6 options */
+#define DHCP6_OPTION_CLIENTID       1
+#define DHCP6_OPTION_SERVERID       2
+#define DHCP6_OPTION_IA_NA          3
+#define DHCP6_OPTION_IA_TA          4
+#define DHCP6_OPTION_IAADDR         5
+#define DHCP6_OPTION_ORO            6
+#define DHCP6_OPTION_PREFERENCE     7
+#define DHCP6_OPTION_ELAPSED_TIME   8
+#define DHCP6_OPTION_RELAY_MSG      9
+#define DHCP6_OPTION_AUTH           11
+#define DHCP6_OPTION_UNICAST        12
+#define DHCP6_OPTION_STATUS_CODE    13
+#define DHCP6_OPTION_RAPID_COMMIT   14
+#define DHCP6_OPTION_USER_CLASS     15
+#define DHCP6_OPTION_VENDOR_CLASS   16
+#define DHCP6_OPTION_VENDOR_OPTS    17
+#define DHCP6_OPTION_INTERFACE_ID   18
+#define DHCP6_OPTION_RECONF_MSG     19
+#define DHCP6_OPTION_RECONF_ACCEPT  20
+/* More options see https://www.iana.org/assignments/dhcpv6-parameters/dhcpv6-parameters.xhtml */
+#define DHCP6_OPTION_DNS_SERVERS    23 /* RFC 3646 */
+#define DHCP6_OPTION_DOMAIN_LIST    24 /* RFC 3646 */
+#define DHCP6_OPTION_SNTP_SERVERS   31 /* RFC 4075 */
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* LWIP_HDR_PROT_DHCP6_H */
--- a/tools/sdk/lwip2/include/lwip/prot/etharp.h
+++ b/tools/sdk/lwip2/include/lwip/prot/etharp.h
@ -39,7 +39,6 @@

 #include "lwip/arch.h"
 #include "lwip/prot/ethernet.h"
-#include "lwip/ip4_addr.h"

 #ifdef __cplusplus
 extern "C" {
@ -49,6 +48,36 @@ extern "C" {
 #define ETHARP_HWADDR_LEN     ETH_HWADDR_LEN
 #endif

+/**
+ * struct ip4_addr_wordaligned is used in the definition of the ARP packet format in
+ * order to support compilers that don't have structure packing.
+ */
+#ifdef PACK_STRUCT_USE_INCLUDES
+#  include "arch/bpstruct.h"
+#endif
+PACK_STRUCT_BEGIN
+struct ip4_addr_wordaligned {
+  PACK_STRUCT_FIELD(u16_t addrw[2]);
+} PACK_STRUCT_STRUCT;
+PACK_STRUCT_END
+#ifdef PACK_STRUCT_USE_INCLUDES
+#  include "arch/epstruct.h"
+#endif
+
+/** MEMCPY-like copying of IP addresses where addresses are known to be
+ * 16-bit-aligned if the port is correctly configured (so a port could define
+ * this to copying 2 u16_t's) - no NULL-pointer-checking needed. */
+#ifndef IPADDR_WORDALIGNED_COPY_TO_IP4_ADDR_T
+#define IPADDR_WORDALIGNED_COPY_TO_IP4_ADDR_T(dest, src) SMEMCPY(dest, src, sizeof(ip4_addr_t))
+#endif
+
+ /** MEMCPY-like copying of IP addresses where addresses are known to be
+ * 16-bit-aligned if the port is correctly configured (so a port could define
+ * this to copying 2 u16_t's) - no NULL-pointer-checking needed. */
+#ifndef IPADDR_WORDALIGNED_COPY_FROM_IP4_ADDR_T
+#define IPADDR_WORDALIGNED_COPY_FROM_IP4_ADDR_T(dest, src) SMEMCPY(dest, src, sizeof(ip4_addr_t))
+#endif
+
 #ifdef PACK_STRUCT_USE_INCLUDES
 #  include "arch/bpstruct.h"
 #endif
@ -61,9 +90,9 @@ struct etharp_hdr {
  PACK_STRUCT_FLD_8(u8_t  protolen);
  PACK_STRUCT_FIELD(u16_t opcode);
  PACK_STRUCT_FLD_S(struct eth_addr shwaddr);
-  PACK_STRUCT_FLD_S(struct ip4_addr2 sipaddr);
+  PACK_STRUCT_FLD_S(struct ip4_addr_wordaligned sipaddr);
  PACK_STRUCT_FLD_S(struct eth_addr dhwaddr);
-  PACK_STRUCT_FLD_S(struct ip4_addr2 dipaddr);
+  PACK_STRUCT_FLD_S(struct ip4_addr_wordaligned dipaddr);
 } PACK_STRUCT_STRUCT;
 PACK_STRUCT_END
 #ifdef PACK_STRUCT_USE_INCLUDES
@ -72,12 +101,6 @@ PACK_STRUCT_END

 #define SIZEOF_ETHARP_HDR 28

-/* ARP hwtype values */
-enum etharp_hwtype {
-  HWTYPE_ETHERNET = 1
-  /* others not used */
-};
-
 /* ARP message types (opcodes) */
 enum etharp_opcode {
  ARP_REQUEST = 1,
--- a/tools/sdk/lwip2/include/lwip/prot/ethernet.h
+++ b/tools/sdk/lwip2/include/lwip/prot/ethernet.h
@ -38,6 +38,7 @@
 #define LWIP_HDR_PROT_ETHERNET_H

 #include "lwip/arch.h"
+#include "lwip/prot/ieee.h"

 #ifdef __cplusplus
 extern "C" {
@ -55,6 +56,7 @@ extern "C" {
 #  include "arch/bpstruct.h"
 #endif
 PACK_STRUCT_BEGIN
+/** An Ethernet MAC address */
 struct eth_addr {
  PACK_STRUCT_FLD_8(u8_t addr[ETH_HWADDR_LEN]);
 } PACK_STRUCT_STRUCT;
@ -63,6 +65,9 @@ PACK_STRUCT_END
 #  include "arch/epstruct.h"
 #endif

+/** Initialize a struct eth_addr with its 6 bytes (takes care of correct braces) */
+#define ETH_ADDR(b0, b1, b2, b3, b4, b5) {{b0, b1, b2, b3, b4, b5}}
+
 #ifdef PACK_STRUCT_USE_INCLUDES
 #  include "arch/bpstruct.h"
 #endif
@ -102,44 +107,6 @@ PACK_STRUCT_END
 #define SIZEOF_VLAN_HDR 4
 #define VLAN_ID(vlan_hdr) (lwip_htons((vlan_hdr)->prio_vid) & 0xFFF)

-/**
- * @ingroup ethernet
- * A list of often ethtypes (although lwIP does not use all of them): */
-enum eth_type {
-  /** Internet protocol v4 */
-  ETHTYPE_IP        = 0x0800U,
-  /** Address resolution protocol */
-  ETHTYPE_ARP       = 0x0806U, 
-  /** Wake on lan */
-  ETHTYPE_WOL       = 0x0842U,
-  /** RARP */
-  ETHTYPE_RARP      = 0x8035U,
-  /** Virtual local area network */
-  ETHTYPE_VLAN      = 0x8100U,
-  /** Internet protocol v6 */
-  ETHTYPE_IPV6      = 0x86DDU,
-  /** PPP Over Ethernet Discovery Stage */
-  ETHTYPE_PPPOEDISC = 0x8863U,
-  /** PPP Over Ethernet Session Stage */
-  ETHTYPE_PPPOE     = 0x8864U,
-  /** Jumbo Frames */
-  ETHTYPE_JUMBO     = 0x8870U,
-  /** Process field network */
-  ETHTYPE_PROFINET  = 0x8892U,
-  /** Ethernet for control automation technology */
-  ETHTYPE_ETHERCAT  = 0x88A4U,
-  /** Link layer discovery protocol */
-  ETHTYPE_LLDP      = 0x88CCU,
-  /** Serial real-time communication system */
-  ETHTYPE_SERCOS    = 0x88CDU,
-  /** Media redundancy protocol */
-  ETHTYPE_MRP       = 0x88E3U,
-  /** Precision time protocol */
-  ETHTYPE_PTP       = 0x88F7U,
-  /** Q-in-Q, 802.1ad */
-  ETHTYPE_QINQ      = 0x9100U
-};
-
 /** The 24-bit IANA IPv4-multicast OUI is 01-00-5e: */
 #define LL_IP4_MULTICAST_ADDR_0 0x01
 #define LL_IP4_MULTICAST_ADDR_1 0x00
@ -149,18 +116,6 @@ enum eth_type {
 #define LL_IP6_MULTICAST_ADDR_0 0x33
 #define LL_IP6_MULTICAST_ADDR_1 0x33

-/** MEMCPY-like macro to copy to/from struct eth_addr's that are local variables
- * or known to be 32-bit aligned within the protocol header. */
-#ifndef ETHADDR32_COPY
-#define ETHADDR32_COPY(dst, src)  SMEMCPY(dst, src, ETH_HWADDR_LEN)
-#endif
-
-/** MEMCPY-like macro to copy to/from struct eth_addr's that are no local
- * variables and known to be 16-bit aligned within the protocol header. */
-#ifndef ETHADDR16_COPY
-#define ETHADDR16_COPY(dst, src)  SMEMCPY(dst, src, ETH_HWADDR_LEN)
-#endif
-
 #define eth_addr_cmp(addr1, addr2) (memcmp((addr1)->addr, (addr2)->addr, ETH_HWADDR_LEN) == 0)

 #ifdef __cplusplus
--- a/tools/sdk/lwip2/include/lwip/prot/iana.h
+++ b/tools/sdk/lwip2/include/lwip/prot/iana.h
@ -0,0 +1,97 @@
+/**
+ * @file
+ * IANA assigned numbers (RFC 1700 and successors)
+ *
+ * @defgroup iana IANA assigned numbers
+ * @ingroup infrastructure
+ */
+
+/*
+ * Copyright (c) 2017 Dirk Ziegelmeier.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Dirk Ziegelmeier <dziegel@gmx.de>
+ *
+ */
+
+#ifndef LWIP_HDR_PROT_IANA_H
+#define LWIP_HDR_PROT_IANA_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @ingroup iana
+ * Hardware types
+ */
+enum lwip_iana_hwtype {
+  /** Ethernet */
+  LWIP_IANA_HWTYPE_ETHERNET = 1
+};
+
+/**
+ * @ingroup iana
+ * Port numbers
+ * https://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.txt
+ */
+enum lwip_iana_port_number {
+  /** SMTP */
+  LWIP_IANA_PORT_SMTP        = 25,
+  /** DHCP server */
+  LWIP_IANA_PORT_DHCP_SERVER = 67,
+  /** DHCP client */
+  LWIP_IANA_PORT_DHCP_CLIENT = 68,
+  /** TFTP */
+  LWIP_IANA_PORT_TFTP        = 69,
+  /** HTTP */
+  LWIP_IANA_PORT_HTTP        = 80,
+  /** SNTP */
+  LWIP_IANA_PORT_SNTP        = 123,
+  /** NETBIOS */
+  LWIP_IANA_PORT_NETBIOS     = 137,
+  /** SNMP */
+  LWIP_IANA_PORT_SNMP        = 161,
+  /** SNMP traps */
+  LWIP_IANA_PORT_SNMP_TRAP   = 162,
+  /** HTTPS */
+  LWIP_IANA_PORT_HTTPS       = 443,
+  /** SMTPS */
+  LWIP_IANA_PORT_SMTPS       = 465,
+  /** MQTT */
+  LWIP_IANA_PORT_MQTT        = 1883,
+  /** MDNS */
+  LWIP_IANA_PORT_MDNS        = 5353,
+  /** Secure MQTT */
+  LWIP_IANA_PORT_SECURE_MQTT = 8883
+};
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* LWIP_HDR_PROT_IANA_H */
--- a/tools/sdk/lwip2/include/lwip/prot/ieee.h
+++ b/tools/sdk/lwip2/include/lwip/prot/ieee.h
@ -0,0 +1,91 @@
+/**
+ * @file
+ * IEEE assigned numbers
+ *
+ * @defgroup ieee IEEE assigned numbers
+ * @ingroup infrastructure
+ */
+
+/*
+ * Copyright (c) 2017 Dirk Ziegelmeier.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Dirk Ziegelmeier <dziegel@gmx.de>
+ *
+ */
+
+#ifndef LWIP_HDR_PROT_IEEE_H
+#define LWIP_HDR_PROT_IEEE_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @ingroup ieee
+ * A list of often ethtypes (although lwIP does not use all of them).
+ */
+enum lwip_ieee_eth_type {
+  /** Internet protocol v4 */
+  ETHTYPE_IP        = 0x0800U,
+  /** Address resolution protocol */
+  ETHTYPE_ARP       = 0x0806U, 
+  /** Wake on lan */
+  ETHTYPE_WOL       = 0x0842U,
+  /** RARP */
+  ETHTYPE_RARP      = 0x8035U,
+  /** Virtual local area network */
+  ETHTYPE_VLAN      = 0x8100U,
+  /** Internet protocol v6 */
+  ETHTYPE_IPV6      = 0x86DDU,
+  /** PPP Over Ethernet Discovery Stage */
+  ETHTYPE_PPPOEDISC = 0x8863U,
+  /** PPP Over Ethernet Session Stage */
+  ETHTYPE_PPPOE     = 0x8864U,
+  /** Jumbo Frames */
+  ETHTYPE_JUMBO     = 0x8870U,
+  /** Process field network */
+  ETHTYPE_PROFINET  = 0x8892U,
+  /** Ethernet for control automation technology */
+  ETHTYPE_ETHERCAT  = 0x88A4U,
+  /** Link layer discovery protocol */
+  ETHTYPE_LLDP      = 0x88CCU,
+  /** Serial real-time communication system */
+  ETHTYPE_SERCOS    = 0x88CDU,
+  /** Media redundancy protocol */
+  ETHTYPE_MRP       = 0x88E3U,
+  /** Precision time protocol */
+  ETHTYPE_PTP       = 0x88F7U,
+  /** Q-in-Q, 802.1ad */
+  ETHTYPE_QINQ      = 0x9100U
+};
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* LWIP_HDR_PROT_IEEE_H */
--- a/tools/sdk/lwip2/include/lwip/prot/igmp.h
+++ b/tools/sdk/lwip2/include/lwip/prot/igmp.h
@ -38,7 +38,7 @@
 #define LWIP_HDR_PROT_IGMP_H

 #include "lwip/arch.h"
-#include "lwip/ip4_addr.h"
+#include "lwip/prot/ip4.h"

 #ifdef __cplusplus
 extern "C" {
--- a/tools/sdk/lwip2/include/lwip/prot/ip.h
+++ b/tools/sdk/lwip2/include/lwip/prot/ip.h
@ -39,6 +39,10 @@

 #include "lwip/arch.h"

+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #define IP_PROTO_ICMP    1
 #define IP_PROTO_IGMP    2
 #define IP_PROTO_UDP     17
@ -48,4 +52,8 @@
 /** This operates on a void* by loading the first byte */
 #define IP_HDR_GET_VERSION(ptr)   ((*(u8_t*)(ptr)) >> 4)

+#ifdef __cplusplus
+}
+#endif
+
 #endif /* LWIP_HDR_PROT_IP_H */
--- a/tools/sdk/lwip2/include/lwip/prot/ip4.h
+++ b/tools/sdk/lwip2/include/lwip/prot/ip4.h
@ -62,6 +62,8 @@ typedef struct ip4_addr_packed ip4_addr_p_t;

 /* Size of the IPv4 header. Same as 'sizeof(struct ip_hdr)'. */
 #define IP_HLEN 20
+/* Maximum size of the IPv4 header with options. */
+#define IP_HLEN_MAX 60

 #ifdef PACK_STRUCT_USE_INCLUDES
 #  include "arch/bpstruct.h"
@ -101,10 +103,12 @@ PACK_STRUCT_END
 /* Macros to get struct ip_hdr fields: */
 #define IPH_V(hdr)  ((hdr)->_v_hl >> 4)
 #define IPH_HL(hdr) ((hdr)->_v_hl & 0x0f)
+#define IPH_HL_BYTES(hdr) ((u8_t)(IPH_HL(hdr) * 4))
 #define IPH_TOS(hdr) ((hdr)->_tos)
 #define IPH_LEN(hdr) ((hdr)->_len)
 #define IPH_ID(hdr) ((hdr)->_id)
 #define IPH_OFFSET(hdr) ((hdr)->_offset)
+#define IPH_OFFSET_BYTES(hdr) ((u16_t)((lwip_ntohs(IPH_OFFSET(hdr)) & IP_OFFMASK) * 8U))
 #define IPH_TTL(hdr) ((hdr)->_ttl)
 #define IPH_PROTO(hdr) ((hdr)->_proto)
 #define IPH_CHKSUM(hdr) ((hdr)->_chksum)
--- a/tools/sdk/lwip2/include/lwip/prot/ip6.h
+++ b/tools/sdk/lwip2/include/lwip/prot/ip6.h
@ -43,7 +43,7 @@
 #ifdef __cplusplus
 extern "C" {
 #endif
-   
+
 /** This is the packed version of ip6_addr_t,
    used in network headers that are itself packed */
 #ifdef PACK_STRUCT_USE_INCLUDES
@ -94,13 +94,50 @@ PACK_STRUCT_END
 #ifdef PACK_STRUCT_USE_INCLUDES
 #  include "arch/epstruct.h"
 #endif
+#define IP6H_V(hdr)  ((lwip_ntohl((hdr)->_v_tc_fl) >> 28) & 0x0f)
+#define IP6H_TC(hdr) ((lwip_ntohl((hdr)->_v_tc_fl) >> 20) & 0xff)
+#define IP6H_FL(hdr) (lwip_ntohl((hdr)->_v_tc_fl) & 0x000fffff)
+#define IP6H_PLEN(hdr) (lwip_ntohs((hdr)->_plen))
+#define IP6H_NEXTH(hdr) ((hdr)->_nexth)
+#define IP6H_NEXTH_P(hdr) ((u8_t *)(hdr) + 6)
+#define IP6H_HOPLIM(hdr) ((hdr)->_hoplim)
+#define IP6H_VTCFL_SET(hdr, v, tc, fl) (hdr)->_v_tc_fl = (lwip_htonl((((u32_t)(v)) << 28) | (((u32_t)(tc)) << 20) | (fl)))
+#define IP6H_PLEN_SET(hdr, plen) (hdr)->_plen = lwip_htons(plen)
+#define IP6H_NEXTH_SET(hdr, nexth) (hdr)->_nexth = (nexth)
+#define IP6H_HOPLIM_SET(hdr, hl) (hdr)->_hoplim = (u8_t)(hl)
+
+/* ipv6 extended options header */
+#define IP6_PAD1_OPTION             0
+#define IP6_PADN_OPTION             1
+#define IP6_ROUTER_ALERT_OPTION     5
+#define IP6_JUMBO_OPTION            194
+#define IP6_HOME_ADDRESS_OPTION     201
+#define IP6_ROUTER_ALERT_DLEN       2
+#define IP6_ROUTER_ALERT_VALUE_MLD  0
+
+#ifdef PACK_STRUCT_USE_INCLUDES
+#  include "arch/bpstruct.h"
+#endif
+PACK_STRUCT_BEGIN
+struct ip6_opt_hdr {
+  /* router alert option type */
+  PACK_STRUCT_FLD_8(u8_t _opt_type);
+  /* router alert option data len */
+  PACK_STRUCT_FLD_8(u8_t _opt_dlen);
+} PACK_STRUCT_STRUCT;
+PACK_STRUCT_END
+#ifdef PACK_STRUCT_USE_INCLUDES
+#  include "arch/epstruct.h"
+#endif
+#define IP6_OPT_HLEN 2
+#define IP6_OPT_TYPE_ACTION(hdr) ((((hdr)->_opt_type) >> 6) & 0x3)
+#define IP6_OPT_TYPE_CHANGE(hdr) ((((hdr)->_opt_type) >> 5) & 0x1)
+#define IP6_OPT_TYPE(hdr) ((hdr)->_opt_type)
+#define IP6_OPT_DLEN(hdr) ((hdr)->_opt_dlen)
+
+/* Hop-by-Hop header. */
+#define IP6_HBH_HLEN    2

-/* Hop-by-hop router alert option. */
-#define IP6_HBH_HLEN    8
-#define IP6_PAD1_OPTION         0
-#define IP6_PADN_ALERT_OPTION   1
-#define IP6_ROUTER_ALERT_OPTION 5
-#define IP6_ROUTER_ALERT_VALUE_MLD 0
 #ifdef PACK_STRUCT_USE_INCLUDES
 #  include "arch/bpstruct.h"
 #endif
@ -108,28 +145,65 @@ PACK_STRUCT_BEGIN
 struct ip6_hbh_hdr {
  /* next header */
  PACK_STRUCT_FLD_8(u8_t _nexth);
-  /* header length */
+  /* header length in 8-octet units */
  PACK_STRUCT_FLD_8(u8_t _hlen);
-  /* router alert option type */
-  PACK_STRUCT_FLD_8(u8_t _ra_opt_type);
-  /* router alert option data len */
-  PACK_STRUCT_FLD_8(u8_t _ra_opt_dlen);
-  /* router alert option data */
-  PACK_STRUCT_FIELD(u16_t _ra_opt_data);
-  /* PadN option type */
-  PACK_STRUCT_FLD_8(u8_t _padn_opt_type);
-  /* PadN option data len */
-  PACK_STRUCT_FLD_8(u8_t _padn_opt_dlen);
 } PACK_STRUCT_STRUCT;
 PACK_STRUCT_END
 #ifdef PACK_STRUCT_USE_INCLUDES
 #  include "arch/epstruct.h"
 #endif
+#define IP6_HBH_NEXTH(hdr) ((hdr)->_nexth)
+
+/* Destination header. */
+#define IP6_DEST_HLEN   2
+
+#ifdef PACK_STRUCT_USE_INCLUDES
+#  include "arch/bpstruct.h"
+#endif
+PACK_STRUCT_BEGIN
+struct ip6_dest_hdr {
+  /* next header */
+  PACK_STRUCT_FLD_8(u8_t _nexth);
+  /* header length in 8-octet units */
+  PACK_STRUCT_FLD_8(u8_t _hlen);
+} PACK_STRUCT_STRUCT;
+PACK_STRUCT_END
+#ifdef PACK_STRUCT_USE_INCLUDES
+#  include "arch/epstruct.h"
+#endif
+#define IP6_DEST_NEXTH(hdr) ((hdr)->_nexth)
+
+/* Routing header */
+#define IP6_ROUT_TYPE2  2
+#define IP6_ROUT_RPL    3
+
+#ifdef PACK_STRUCT_USE_INCLUDES
+#  include "arch/bpstruct.h"
+#endif
+PACK_STRUCT_BEGIN
+struct ip6_rout_hdr {
+  /* next header */
+  PACK_STRUCT_FLD_8(u8_t _nexth);
+  /* reserved */
+  PACK_STRUCT_FLD_8(u8_t _hlen);
+  /* fragment offset */
+  PACK_STRUCT_FIELD(u8_t _routing_type);
+  /* fragmented packet identification */
+  PACK_STRUCT_FIELD(u8_t _segments_left);
+} PACK_STRUCT_STRUCT;
+PACK_STRUCT_END
+#ifdef PACK_STRUCT_USE_INCLUDES
+#  include "arch/epstruct.h"
+#endif
+#define IP6_ROUT_NEXTH(hdr) ((hdr)->_nexth)
+#define IP6_ROUT_TYPE(hdr) ((hdr)->_routing_type)
+#define IP6_ROUT_SEG_LEFT(hdr) ((hdr)->_segments_left)

 /* Fragment header. */
 #define IP6_FRAG_HLEN    8
 #define IP6_FRAG_OFFSET_MASK    0xfff8
 #define IP6_FRAG_MORE_FLAG      0x0001
+
 #ifdef PACK_STRUCT_USE_INCLUDES
 #  include "arch/bpstruct.h"
 #endif
@ -148,19 +222,9 @@ PACK_STRUCT_END
 #ifdef PACK_STRUCT_USE_INCLUDES
 #  include "arch/epstruct.h"
 #endif
-
-#define IP6H_V(hdr)  ((lwip_ntohl((hdr)->_v_tc_fl) >> 28) & 0x0f)
-#define IP6H_TC(hdr) ((lwip_ntohl((hdr)->_v_tc_fl) >> 20) & 0xff)
-#define IP6H_FL(hdr) (lwip_ntohl((hdr)->_v_tc_fl) & 0x000fffff)
-#define IP6H_PLEN(hdr) (lwip_ntohs((hdr)->_plen))
-#define IP6H_NEXTH(hdr) ((hdr)->_nexth)
-#define IP6H_NEXTH_P(hdr) ((u8_t *)(hdr) + 6)
-#define IP6H_HOPLIM(hdr) ((hdr)->_hoplim)
-
-#define IP6H_VTCFL_SET(hdr, v, tc, fl) (hdr)->_v_tc_fl = (lwip_htonl((((u32_t)(v)) << 28) | (((u32_t)(tc)) << 20) | (fl)))
-#define IP6H_PLEN_SET(hdr, plen) (hdr)->_plen = lwip_htons(plen)
-#define IP6H_NEXTH_SET(hdr, nexth) (hdr)->_nexth = (nexth)
-#define IP6H_HOPLIM_SET(hdr, hl) (hdr)->_hoplim = (u8_t)(hl)
+#define IP6_FRAG_NEXTH(hdr) ((hdr)->_nexth)
+#define IP6_FRAG_MBIT(hdr) (lwip_ntohs((hdr)->_fragment_offset) & 0x1)
+#define IP6_FRAG_ID(hdr) (lwip_ntohl((hdr)->_identification))

 #ifdef __cplusplus
 }
--- a/tools/sdk/lwip2/include/lwip/prot/mld6.h
+++ b/tools/sdk/lwip2/include/lwip/prot/mld6.h
@ -44,6 +44,7 @@
 extern "C" {
 #endif

+#define MLD6_HBH_HLEN 8
 /** Multicast listener report/query/done message header. */
 #ifdef PACK_STRUCT_USE_INCLUDES
 #  include "arch/bpstruct.h"
--- a/tools/sdk/lwip2/include/lwip/prot/nd6.h
+++ b/tools/sdk/lwip2/include/lwip/prot/nd6.h
@ -248,11 +248,6 @@ PACK_STRUCT_END
 #endif

 /** Recursive DNS Server Option. */
-#if LWIP_ND6_RDNSS_MAX_DNS_SERVERS
-#define LWIP_RDNSS_OPTION_MAX_SERVERS LWIP_ND6_RDNSS_MAX_DNS_SERVERS
-#else
-#define LWIP_RDNSS_OPTION_MAX_SERVERS 1
-#endif
 #define ND6_OPTION_TYPE_RDNSS (25)
 #ifdef PACK_STRUCT_USE_INCLUDES
 #  include "arch/bpstruct.h"
@ -263,13 +258,15 @@ struct rdnss_option {
  PACK_STRUCT_FLD_8(u8_t length);
  PACK_STRUCT_FIELD(u16_t reserved);
  PACK_STRUCT_FIELD(u32_t lifetime);
-  PACK_STRUCT_FLD_S(ip6_addr_p_t rdnss_address[LWIP_RDNSS_OPTION_MAX_SERVERS]);
+  PACK_STRUCT_FLD_S(ip6_addr_p_t rdnss_address[1]);
 } PACK_STRUCT_STRUCT;
 PACK_STRUCT_END
 #ifdef PACK_STRUCT_USE_INCLUDES
 #  include "arch/epstruct.h"
 #endif

+#define SIZEOF_RDNSS_OPTION_BASE 8 /* size without addresses */
+
 #ifdef __cplusplus
 }
 #endif
--- a/tools/sdk/lwip2/include/lwip/prot/tcp.h
+++ b/tools/sdk/lwip2/include/lwip/prot/tcp.h
@ -80,8 +80,11 @@ PACK_STRUCT_END
 /* Valid TCP header flags */
 #define TCP_FLAGS 0x3fU

+#define TCP_MAX_OPTION_BYTES 40
+
 #define TCPH_HDRLEN(phdr) ((u16_t)(lwip_ntohs((phdr)->_hdrlen_rsvd_flags) >> 12))
-#define TCPH_FLAGS(phdr)  ((u16_t)(lwip_ntohs((phdr)->_hdrlen_rsvd_flags) & TCP_FLAGS))
+#define TCPH_HDRLEN_BYTES(phdr) ((u8_t)(TCPH_HDRLEN(phdr) << 2))
+#define TCPH_FLAGS(phdr)  ((u8_t)((lwip_ntohs((phdr)->_hdrlen_rsvd_flags) & TCP_FLAGS)))

 #define TCPH_HDRLEN_SET(phdr, len) (phdr)->_hdrlen_rsvd_flags = lwip_htons(((len) << 12) | TCPH_FLAGS(phdr))
 #define TCPH_FLAGS_SET(phdr, flags) (phdr)->_hdrlen_rsvd_flags = (((phdr)->_hdrlen_rsvd_flags & PP_HTONS(~TCP_FLAGS)) | lwip_htons(flags))