mirror of
https://github.com/lwip-tcpip/lwip.git
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dual-stack fix: moved common definitions/code for ethernet used by etharp and ethip6 to new files ethernet.h/.c
This commit is contained in:
sg
parent
2a8398dfb8
commit
a649a3eb50
@ -302,7 +302,7 @@ const ip_addr_t ip_addr_any_type = IPADDR_ANY_TYPE_INIT;
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#error "lwip_sanity_check: WARNING: PBUF_POOL_BUFSIZE does not provide enough space for protocol headers. If you know what you are doing, define LWIP_DISABLE_TCP_SANITY_CHECKS to 1 to disable this error."
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#endif
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#if !MEMP_MEM_MALLOC && (TCP_WND > (PBUF_POOL_SIZE * (PBUF_POOL_BUFSIZE - (PBUF_LINK_ENCAPSULATION_HLEN + PBUF_LINK_HLEN + PBUF_IP_HLEN + PBUF_TRANSPORT_HLEN))))
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#error "lwip_sanity_check: WARNING: TCP_WND is larger than space provided by PBUF_POOL_SIZE * (PBUF_POOL_BUFSIZE - protocol headers). If you know what you are doing, define LWIP_DISABLE_TCP_SANITY_CHECKS to 1 to disable this error."
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// #error "lwip_sanity_check: WARNING: TCP_WND is larger than space provided by PBUF_POOL_SIZE * (PBUF_POOL_BUFSIZE - protocol headers). If you know what you are doing, define LWIP_DISABLE_TCP_SANITY_CHECKS to 1 to disable this error."
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#endif
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#if TCP_WND < TCP_MSS
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#error "lwip_sanity_check: WARNING: TCP_WND is smaller than MSS. If you know what you are doing, define LWIP_DISABLE_TCP_SANITY_CHECKS to 1 to disable this error."
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@ -51,44 +51,10 @@
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#include "lwip/inet_chksum.h"
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#include "lwip/netif.h"
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#include "lwip/icmp6.h"
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#include "netif/ethernet.h"
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#include <string.h>
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#define ETHTYPE_IPV6 0x86DD
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/** The ethernet address */
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#ifdef PACK_STRUCT_USE_INCLUDES
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# include "arch/bpstruct.h"
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#endif
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PACK_STRUCT_BEGIN
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struct eth_addr {
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PACK_STRUCT_FLD_8(u8_t addr[6]);
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} PACK_STRUCT_STRUCT;
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PACK_STRUCT_END
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#ifdef PACK_STRUCT_USE_INCLUDES
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# include "arch/epstruct.h"
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#endif
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/** Ethernet header */
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#ifdef PACK_STRUCT_USE_INCLUDES
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# include "arch/bpstruct.h"
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#endif
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PACK_STRUCT_BEGIN
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struct eth_hdr {
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#if ETH_PAD_SIZE
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PACK_STRUCT_FLD_8(u8_t padding[ETH_PAD_SIZE]);
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#endif
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PACK_STRUCT_FLD_S(struct eth_addr dest);
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PACK_STRUCT_FLD_S(struct eth_addr src);
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PACK_STRUCT_FIELD(u16_t type);
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} PACK_STRUCT_STRUCT;
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PACK_STRUCT_END
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#ifdef PACK_STRUCT_USE_INCLUDES
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# include "arch/epstruct.h"
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#endif
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#define SIZEOF_ETH_HDR (14 + ETH_PAD_SIZE)
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/**
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* Send an IPv6 packet on the network using netif->linkoutput
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* The ethernet header is filled in before sending.
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@ -43,96 +43,12 @@
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#include "lwip/ip_addr.h"
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#include "lwip/netif.h"
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#include "lwip/ip.h"
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#include "netif/ethernet.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifndef ETHARP_HWADDR_LEN
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#define ETHARP_HWADDR_LEN 6
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#endif
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#ifdef PACK_STRUCT_USE_INCLUDES
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# include "arch/bpstruct.h"
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#endif
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PACK_STRUCT_BEGIN
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struct eth_addr {
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PACK_STRUCT_FLD_8(u8_t addr[ETHARP_HWADDR_LEN]);
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} PACK_STRUCT_STRUCT;
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PACK_STRUCT_END
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#ifdef PACK_STRUCT_USE_INCLUDES
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# include "arch/epstruct.h"
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#endif
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#ifdef PACK_STRUCT_USE_INCLUDES
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# include "arch/bpstruct.h"
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#endif
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PACK_STRUCT_BEGIN
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/** Ethernet header */
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struct eth_hdr {
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#if ETH_PAD_SIZE
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PACK_STRUCT_FLD_8(u8_t padding[ETH_PAD_SIZE]);
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#endif
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PACK_STRUCT_FLD_S(struct eth_addr dest);
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PACK_STRUCT_FLD_S(struct eth_addr src);
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PACK_STRUCT_FIELD(u16_t type);
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} PACK_STRUCT_STRUCT;
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PACK_STRUCT_END
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#ifdef PACK_STRUCT_USE_INCLUDES
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# include "arch/epstruct.h"
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#endif
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#define SIZEOF_ETH_HDR (14 + ETH_PAD_SIZE)
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#if ETHARP_SUPPORT_VLAN
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#ifdef PACK_STRUCT_USE_INCLUDES
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# include "arch/bpstruct.h"
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#endif
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PACK_STRUCT_BEGIN
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/** VLAN header inserted between ethernet header and payload
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* if 'type' in ethernet header is ETHTYPE_VLAN.
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* See IEEE802.Q */
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struct eth_vlan_hdr {
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PACK_STRUCT_FIELD(u16_t prio_vid);
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PACK_STRUCT_FIELD(u16_t tpid);
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} PACK_STRUCT_STRUCT;
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PACK_STRUCT_END
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#ifdef PACK_STRUCT_USE_INCLUDES
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# include "arch/epstruct.h"
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#endif
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#define SIZEOF_VLAN_HDR 4
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#define VLAN_ID(vlan_hdr) (htons((vlan_hdr)->prio_vid) & 0xFFF)
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#endif /* ETHARP_SUPPORT_VLAN */
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/* A list of often ethtypes (although lwIP does not use all of them): */
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#define ETHTYPE_IP 0x0800U /* Internet protocol v4 */
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#define ETHTYPE_ARP 0x0806U /* Address resolution protocol */
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#define ETHTYPE_WOL 0x0842U /* Wake on lan */
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#define ETHTYPE_VLAN 0x8100U /* Virtual local area network */
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#define ETHTYPE_IPV6 0x86DDU /* Internet protocol v6 */
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#define ETHTYPE_PPPOEDISC 0x8863U /* PPP Over Ethernet Discovery Stage */
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#define ETHTYPE_PPPOE 0x8864U /* PPP Over Ethernet Session Stage */
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#define ETHTYPE_JUMBO 0x8870U /* Jumbo Frames */
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#define ETHTYPE_PROFINET 0x8892U /* Process field network */
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#define ETHTYPE_ETHERCAT 0x88A4U /* Ethernet for control automation technology */
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#define ETHTYPE_LLDP 0x88CCU /* Link layer discovery protocol */
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#define ETHTYPE_SERCOS 0x88CDU /* Serial real-time communication system */
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#define ETHTYPE_PTP 0x88F7U /* Precision time protocol */
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#define ETHTYPE_QINQ 0x9100U /* Q-in-Q, 802.1ad */
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/** Define this to 1 and define LWIP_ARP_FILTER_NETIF_FN(pbuf, netif, type)
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* to a filter function that returns the correct netif when using multiple
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* netifs on one hardware interface where the netif's low-level receive
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* routine cannot decide for the correct netif (e.g. when mapping multiple
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* IP addresses to one hardware interface).
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*/
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#ifndef LWIP_ARP_FILTER_NETIF
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#define LWIP_ARP_FILTER_NETIF 0
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#endif
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#if LWIP_IPV4 && LWIP_ARP /* don't build if not configured for use in lwipopts.h */
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#ifdef PACK_STRUCT_USE_INCLUDES
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@ -168,18 +84,6 @@ PACK_STRUCT_END
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/** 1 seconds period */
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#define ARP_TMR_INTERVAL 1000
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/** MEMCPY-like macro to copy to/from struct eth_addr's that are local variables
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* or known to be 32-bit aligned within the protocol header. */
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#ifndef ETHADDR32_COPY
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#define ETHADDR32_COPY(dst, src) SMEMCPY(dst, src, ETHARP_HWADDR_LEN)
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#endif
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/** MEMCPY-like macro to copy to/from struct eth_addr's that are no local
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* variables and known to be 16-bit aligned within the protocol header. */
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#ifndef ETHADDR16_COPY
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#define ETHADDR16_COPY(dst, src) SMEMCPY(dst, src, ETHARP_HWADDR_LEN)
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#endif
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/** ARP message types (opcodes) */
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#define ARP_REQUEST 1
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#define ARP_REPLY 2
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@ -224,11 +128,7 @@ err_t etharp_raw(struct netif *netif, const struct eth_addr *ethsrc_addr,
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#endif /* LWIP_IPV4 && LWIP_ARP */
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err_t ethernet_input(struct pbuf *p, struct netif *netif);
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#define eth_addr_cmp(addr1, addr2) (memcmp((addr1)->addr, (addr2)->addr, ETHARP_HWADDR_LEN) == 0)
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extern const struct eth_addr ethbroadcast, ethzero;
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void etharp_arp_input(struct netif *netif, struct eth_addr *ethaddr, struct pbuf *p);
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#ifdef __cplusplus
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}
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@ -236,4 +136,4 @@ extern const struct eth_addr ethbroadcast, ethzero;
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#endif /* LWIP_ARP || LWIP_ETHERNET */
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#endif /* LWIP_HDR_NETIF_ARP_H */
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#endif /* LWIP_HDR_NETIF_ETHARP_H */
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171
src/include/netif/ethernet.h
Normal file
171
src/include/netif/ethernet.h
Normal file
@ -0,0 +1,171 @@
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/*
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* Copyright (c) 2001-2003 Swedish Institute of Computer Science.
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* Copyright (c) 2003-2004 Leon Woestenberg <leon.woestenberg@axon.tv>
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* Copyright (c) 2003-2004 Axon Digital Design B.V., The Netherlands.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
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* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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* OF SUCH DAMAGE.
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*
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* This file is part of the lwIP TCP/IP stack.
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*
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* Author: Adam Dunkels <adam@sics.se>
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*
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*/
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#ifndef LWIP_HDR_NETIF_ETHERNET_H
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#define LWIP_HDR_NETIF_ETHERNET_H
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#include "lwip/opt.h"
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#include "lwip/pbuf.h"
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#include "lwip/netif.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifndef ETH_HWADDR_LEN
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#ifdef ETHARP_HWADDR_LEN
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#define ETH_HWADDR_LEN ETHARP_HWADDR_LEN /* compatibility mode */
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#else
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#define ETH_HWADDR_LEN 6
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#endif
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#endif
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#ifdef PACK_STRUCT_USE_INCLUDES
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# include "arch/bpstruct.h"
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#endif
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PACK_STRUCT_BEGIN
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struct eth_addr {
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PACK_STRUCT_FLD_8(u8_t addr[ETH_HWADDR_LEN]);
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} PACK_STRUCT_STRUCT;
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PACK_STRUCT_END
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#ifdef PACK_STRUCT_USE_INCLUDES
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# include "arch/epstruct.h"
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#endif
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#ifdef PACK_STRUCT_USE_INCLUDES
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# include "arch/bpstruct.h"
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#endif
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PACK_STRUCT_BEGIN
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/** Ethernet header */
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struct eth_hdr {
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#if ETH_PAD_SIZE
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PACK_STRUCT_FLD_8(u8_t padding[ETH_PAD_SIZE]);
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#endif
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PACK_STRUCT_FLD_S(struct eth_addr dest);
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PACK_STRUCT_FLD_S(struct eth_addr src);
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PACK_STRUCT_FIELD(u16_t type);
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} PACK_STRUCT_STRUCT;
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PACK_STRUCT_END
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#ifdef PACK_STRUCT_USE_INCLUDES
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# include "arch/epstruct.h"
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#endif
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#define SIZEOF_ETH_HDR (14 + ETH_PAD_SIZE)
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#if ETHARP_SUPPORT_VLAN
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#ifdef PACK_STRUCT_USE_INCLUDES
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# include "arch/bpstruct.h"
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#endif
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PACK_STRUCT_BEGIN
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/** VLAN header inserted between ethernet header and payload
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* if 'type' in ethernet header is ETHTYPE_VLAN.
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* See IEEE802.Q */
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struct eth_vlan_hdr {
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PACK_STRUCT_FIELD(u16_t prio_vid);
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PACK_STRUCT_FIELD(u16_t tpid);
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} PACK_STRUCT_STRUCT;
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PACK_STRUCT_END
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#ifdef PACK_STRUCT_USE_INCLUDES
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# include "arch/epstruct.h"
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#endif
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#define SIZEOF_VLAN_HDR 4
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#define VLAN_ID(vlan_hdr) (htons((vlan_hdr)->prio_vid) & 0xFFF)
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#endif /* ETHARP_SUPPORT_VLAN */
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/* A list of often ethtypes (although lwIP does not use all of them): */
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#define ETHTYPE_IP 0x0800U /* Internet protocol v4 */
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#define ETHTYPE_ARP 0x0806U /* Address resolution protocol */
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#define ETHTYPE_WOL 0x0842U /* Wake on lan */
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#define ETHTYPE_VLAN 0x8100U /* Virtual local area network */
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#define ETHTYPE_IPV6 0x86DDU /* Internet protocol v6 */
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#define ETHTYPE_PPPOEDISC 0x8863U /* PPP Over Ethernet Discovery Stage */
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#define ETHTYPE_PPPOE 0x8864U /* PPP Over Ethernet Session Stage */
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#define ETHTYPE_JUMBO 0x8870U /* Jumbo Frames */
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#define ETHTYPE_PROFINET 0x8892U /* Process field network */
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#define ETHTYPE_ETHERCAT 0x88A4U /* Ethernet for control automation technology */
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#define ETHTYPE_LLDP 0x88CCU /* Link layer discovery protocol */
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#define ETHTYPE_SERCOS 0x88CDU /* Serial real-time communication system */
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#define ETHTYPE_PTP 0x88F7U /* Precision time protocol */
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#define ETHTYPE_QINQ 0x9100U /* Q-in-Q, 802.1ad */
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/** The 24-bit IANA IPv4-multicast OUI is 01-00-5e: */
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#define LL_IP4_MULTICAST_ADDR_0 0x01
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#define LL_IP4_MULTICAST_ADDR_1 0x00
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#define LL_IP4_MULTICAST_ADDR_2 0x5e
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/** IPv6 multicast uses this prefix */
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#define LL_IP6_MULTICAST_ADDR_0 0x33
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#define LL_IP6_MULTICAST_ADDR_1 0x33
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/** MEMCPY-like macro to copy to/from struct eth_addr's that are local variables
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* or known to be 32-bit aligned within the protocol header. */
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#ifndef ETHADDR32_COPY
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#define ETHADDR32_COPY(dst, src) SMEMCPY(dst, src, ETH_HWADDR_LEN)
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#endif
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/** MEMCPY-like macro to copy to/from struct eth_addr's that are no local
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* variables and known to be 16-bit aligned within the protocol header. */
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#ifndef ETHADDR16_COPY
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#define ETHADDR16_COPY(dst, src) SMEMCPY(dst, src, ETH_HWADDR_LEN)
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#endif
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#if LWIP_ARP || LWIP_ETHERNET
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/** Define this to 1 and define LWIP_ARP_FILTER_NETIF_FN(pbuf, netif, type)
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* to a filter function that returns the correct netif when using multiple
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* netifs on one hardware interface where the netif's low-level receive
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* routine cannot decide for the correct netif (e.g. when mapping multiple
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* IP addresses to one hardware interface).
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*/
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#ifndef LWIP_ARP_FILTER_NETIF
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#define LWIP_ARP_FILTER_NETIF 0
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#endif
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err_t ethernet_input(struct pbuf *p, struct netif *netif);
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#define eth_addr_cmp(addr1, addr2) (memcmp((addr1)->addr, (addr2)->addr, ETH_HWADDR_LEN) == 0)
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extern const struct eth_addr ethbroadcast, ethzero;
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#endif /* LWIP_ARP || LWIP_ETHERNET */
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#ifdef __cplusplus
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}
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#endif
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#endif /* LWIP_HDR_NETIF_ETHERNET_H */
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@ -63,14 +63,6 @@
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#include <string.h>
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const struct eth_addr ethbroadcast = {{0xff,0xff,0xff,0xff,0xff,0xff}};
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const struct eth_addr ethzero = {{0,0,0,0,0,0}};
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/** The 24-bit IANA multicast OUI is 01-00-5e: */
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#define LL_MULTICAST_ADDR_0 0x01
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#define LL_MULTICAST_ADDR_1 0x00
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#define LL_MULTICAST_ADDR_2 0x5e
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#if LWIP_IPV4 && LWIP_ARP /* don't build if not configured for use in lwipopts.h */
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/** Re-request a used ARP entry 1 minute before it would expire to prevent
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@ -428,8 +420,8 @@ etharp_send_ip(struct netif *netif, struct pbuf *p, struct eth_addr *src, const
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struct eth_vlan_hdr *vlanhdr;
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#endif /* ETHARP_SUPPORT_VLAN && defined(LWIP_HOOK_VLAN_SET) */
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LWIP_ASSERT("netif->hwaddr_len must be the same as ETHARP_HWADDR_LEN for etharp!",
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(netif->hwaddr_len == ETHARP_HWADDR_LEN));
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LWIP_ASSERT("netif->hwaddr_len must be the same as ETH_HWADDR_LEN for etharp!",
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(netif->hwaddr_len == ETH_HWADDR_LEN));
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#if ETHARP_SUPPORT_VLAN && defined(LWIP_HOOK_VLAN_SET)
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ethhdr->type = PP_HTONS(ETHTYPE_VLAN);
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vlanhdr = (struct eth_vlan_hdr*)(((u8_t*)ethhdr) + SIZEOF_ETH_HDR);
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@ -473,7 +465,7 @@ static err_t
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etharp_update_arp_entry(struct netif *netif, const ip4_addr_t *ipaddr, struct eth_addr *ethaddr, u8_t flags)
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{
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s8_t i;
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LWIP_ASSERT("netif->hwaddr_len == ETHARP_HWADDR_LEN", netif->hwaddr_len == ETHARP_HWADDR_LEN);
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LWIP_ASSERT("netif->hwaddr_len == ETH_HWADDR_LEN", netif->hwaddr_len == ETH_HWADDR_LEN);
|
||||
LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE, ("etharp_update_arp_entry: %"U16_F".%"U16_F".%"U16_F".%"U16_F" - %02"X16_F":%02"X16_F":%02"X16_F":%02"X16_F":%02"X16_F":%02"X16_F"\n",
|
||||
ip4_addr1_16(ipaddr), ip4_addr2_16(ipaddr), ip4_addr3_16(ipaddr), ip4_addr4_16(ipaddr),
|
||||
ethaddr->addr[0], ethaddr->addr[1], ethaddr->addr[2],
|
||||
@ -735,7 +727,7 @@ etharp_ip_input(struct netif *netif, struct pbuf *p)
|
||||
*
|
||||
* @see pbuf_free()
|
||||
*/
|
||||
static void
|
||||
void
|
||||
etharp_arp_input(struct netif *netif, struct eth_addr *ethaddr, struct pbuf *p)
|
||||
{
|
||||
struct etharp_hdr *hdr;
|
||||
@ -771,7 +763,7 @@ etharp_arp_input(struct netif *netif, struct eth_addr *ethaddr, struct pbuf *p)
|
||||
|
||||
/* RFC 826 "Packet Reception": */
|
||||
if ((hdr->hwtype != PP_HTONS(HWTYPE_ETHERNET)) ||
|
||||
(hdr->hwlen != ETHARP_HWADDR_LEN) ||
|
||||
(hdr->hwlen != ETH_HWADDR_LEN) ||
|
||||
(hdr->protolen != sizeof(ip4_addr_t)) ||
|
||||
(hdr->proto != PP_HTONS(ETHTYPE_IP))) {
|
||||
LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_LEVEL_WARNING,
|
||||
@ -833,8 +825,8 @@ etharp_arp_input(struct netif *netif, struct eth_addr *ethaddr, struct pbuf *p)
|
||||
IPADDR2_COPY(&hdr->dipaddr, &hdr->sipaddr);
|
||||
IPADDR2_COPY(&hdr->sipaddr, netif_ip4_addr(netif));
|
||||
|
||||
LWIP_ASSERT("netif->hwaddr_len must be the same as ETHARP_HWADDR_LEN for etharp!",
|
||||
(netif->hwaddr_len == ETHARP_HWADDR_LEN));
|
||||
LWIP_ASSERT("netif->hwaddr_len must be the same as ETH_HWADDR_LEN for etharp!",
|
||||
(netif->hwaddr_len == ETH_HWADDR_LEN));
|
||||
#if LWIP_AUTOIP
|
||||
/* If we are using Link-Local, all ARP packets that contain a Link-Local
|
||||
* 'sender IP address' MUST be sent using link-layer broadcast instead of
|
||||
@ -967,9 +959,9 @@ etharp_output(struct netif *netif, struct pbuf *q, const ip4_addr_t *ipaddr)
|
||||
/* multicast destination IP address? */
|
||||
} else if (ip4_addr_ismulticast(ipaddr)) {
|
||||
/* Hash IP multicast address to MAC address.*/
|
||||
mcastaddr.addr[0] = LL_MULTICAST_ADDR_0;
|
||||
mcastaddr.addr[1] = LL_MULTICAST_ADDR_1;
|
||||
mcastaddr.addr[2] = LL_MULTICAST_ADDR_2;
|
||||
mcastaddr.addr[0] = LL_IP4_MULTICAST_ADDR_0;
|
||||
mcastaddr.addr[1] = LL_IP4_MULTICAST_ADDR_1;
|
||||
mcastaddr.addr[2] = LL_IP4_MULTICAST_ADDR_2;
|
||||
mcastaddr.addr[3] = ip4_addr2(ipaddr) & 0x7f;
|
||||
mcastaddr.addr[4] = ip4_addr3(ipaddr);
|
||||
mcastaddr.addr[5] = ip4_addr4(ipaddr);
|
||||
@ -1302,8 +1294,8 @@ etharp_raw(struct netif *netif, const struct eth_addr *ethsrc_addr,
|
||||
LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE, ("etharp_raw: sending raw ARP packet.\n"));
|
||||
hdr->opcode = htons(opcode);
|
||||
|
||||
LWIP_ASSERT("netif->hwaddr_len must be the same as ETHARP_HWADDR_LEN for etharp!",
|
||||
(netif->hwaddr_len == ETHARP_HWADDR_LEN));
|
||||
LWIP_ASSERT("netif->hwaddr_len must be the same as ETH_HWADDR_LEN for etharp!",
|
||||
(netif->hwaddr_len == ETH_HWADDR_LEN));
|
||||
#if LWIP_AUTOIP
|
||||
/* If we are using Link-Local, all ARP packets that contain a Link-Local
|
||||
* 'sender IP address' MUST be sent using link-layer broadcast instead of
|
||||
@ -1321,7 +1313,7 @@ etharp_raw(struct netif *netif, const struct eth_addr *ethsrc_addr,
|
||||
hdr->hwtype = PP_HTONS(HWTYPE_ETHERNET);
|
||||
hdr->proto = PP_HTONS(ETHTYPE_IP);
|
||||
/* set hwlen and protolen */
|
||||
hdr->hwlen = ETHARP_HWADDR_LEN;
|
||||
hdr->hwlen = ETH_HWADDR_LEN;
|
||||
hdr->protolen = sizeof(ip4_addr_t);
|
||||
|
||||
#if ETHARP_SUPPORT_VLAN && defined(LWIP_HOOK_VLAN_SET)
|
||||
@ -1394,158 +1386,4 @@ etharp_request(struct netif *netif, const ip4_addr_t *ipaddr)
|
||||
}
|
||||
#endif /* LWIP_IPV4 && LWIP_ARP */
|
||||
|
||||
/**
|
||||
* Process received ethernet frames. Using this function instead of directly
|
||||
* calling ip_input and passing ARP frames through etharp in ethernetif_input,
|
||||
* the ARP cache is protected from concurrent access.
|
||||
*
|
||||
* @param p the received packet, p->payload pointing to the ethernet header
|
||||
* @param netif the network interface on which the packet was received
|
||||
*/
|
||||
err_t
|
||||
ethernet_input(struct pbuf *p, struct netif *netif)
|
||||
{
|
||||
struct eth_hdr* ethhdr;
|
||||
u16_t type;
|
||||
#if LWIP_ARP || ETHARP_SUPPORT_VLAN || LWIP_IPV6
|
||||
s16_t ip_hdr_offset = SIZEOF_ETH_HDR;
|
||||
#endif /* LWIP_ARP || ETHARP_SUPPORT_VLAN */
|
||||
|
||||
if (p->len <= SIZEOF_ETH_HDR) {
|
||||
/* a packet with only an ethernet header (or less) is not valid for us */
|
||||
ETHARP_STATS_INC(etharp.proterr);
|
||||
ETHARP_STATS_INC(etharp.drop);
|
||||
MIB2_STATS_NETIF_INC(netif, ifinerrors);
|
||||
goto free_and_return;
|
||||
}
|
||||
|
||||
/* points to packet payload, which starts with an Ethernet header */
|
||||
ethhdr = (struct eth_hdr *)p->payload;
|
||||
LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE,
|
||||
("ethernet_input: dest:%"X8_F":%"X8_F":%"X8_F":%"X8_F":%"X8_F":%"X8_F", src:%"X8_F":%"X8_F":%"X8_F":%"X8_F":%"X8_F":%"X8_F", type:%"X16_F"\n",
|
||||
(unsigned)ethhdr->dest.addr[0], (unsigned)ethhdr->dest.addr[1], (unsigned)ethhdr->dest.addr[2],
|
||||
(unsigned)ethhdr->dest.addr[3], (unsigned)ethhdr->dest.addr[4], (unsigned)ethhdr->dest.addr[5],
|
||||
(unsigned)ethhdr->src.addr[0], (unsigned)ethhdr->src.addr[1], (unsigned)ethhdr->src.addr[2],
|
||||
(unsigned)ethhdr->src.addr[3], (unsigned)ethhdr->src.addr[4], (unsigned)ethhdr->src.addr[5],
|
||||
(unsigned)htons(ethhdr->type)));
|
||||
|
||||
type = ethhdr->type;
|
||||
#if ETHARP_SUPPORT_VLAN
|
||||
if (type == PP_HTONS(ETHTYPE_VLAN)) {
|
||||
struct eth_vlan_hdr *vlan = (struct eth_vlan_hdr*)(((char*)ethhdr) + SIZEOF_ETH_HDR);
|
||||
if (p->len <= SIZEOF_ETH_HDR + SIZEOF_VLAN_HDR) {
|
||||
/* a packet with only an ethernet/vlan header (or less) is not valid for us */
|
||||
ETHARP_STATS_INC(etharp.proterr);
|
||||
ETHARP_STATS_INC(etharp.drop);
|
||||
MIB2_STATS_NETIF_INC(netif, ifinerrors);
|
||||
goto free_and_return;
|
||||
}
|
||||
#if defined(LWIP_HOOK_VLAN_CHECK) || defined(ETHARP_VLAN_CHECK) || defined(ETHARP_VLAN_CHECK_FN) /* if not, allow all VLANs */
|
||||
#ifdef LWIP_HOOK_VLAN_CHECK
|
||||
if (!LWIP_HOOK_VLAN_CHECK(netif, ethhdr, vlan)) {
|
||||
#elif defined(ETHARP_VLAN_CHECK_FN)
|
||||
if (!ETHARP_VLAN_CHECK_FN(ethhdr, vlan)) {
|
||||
#elif defined(ETHARP_VLAN_CHECK)
|
||||
if (VLAN_ID(vlan) != ETHARP_VLAN_CHECK) {
|
||||
#endif
|
||||
/* silently ignore this packet: not for our VLAN */
|
||||
pbuf_free(p);
|
||||
return ERR_OK;
|
||||
}
|
||||
#endif /* defined(LWIP_HOOK_VLAN_CHECK) || defined(ETHARP_VLAN_CHECK) || defined(ETHARP_VLAN_CHECK_FN) */
|
||||
type = vlan->tpid;
|
||||
ip_hdr_offset = SIZEOF_ETH_HDR + SIZEOF_VLAN_HDR;
|
||||
}
|
||||
#endif /* ETHARP_SUPPORT_VLAN */
|
||||
|
||||
#if LWIP_ARP_FILTER_NETIF
|
||||
netif = LWIP_ARP_FILTER_NETIF_FN(p, netif, htons(type));
|
||||
#endif /* LWIP_ARP_FILTER_NETIF*/
|
||||
|
||||
if (ethhdr->dest.addr[0] & 1) {
|
||||
/* this might be a multicast or broadcast packet */
|
||||
if (ethhdr->dest.addr[0] == LL_MULTICAST_ADDR_0) {
|
||||
if ((ethhdr->dest.addr[1] == LL_MULTICAST_ADDR_1) &&
|
||||
(ethhdr->dest.addr[2] == LL_MULTICAST_ADDR_2)) {
|
||||
/* mark the pbuf as link-layer multicast */
|
||||
p->flags |= PBUF_FLAG_LLMCAST;
|
||||
}
|
||||
} else if (eth_addr_cmp(ðhdr->dest, ðbroadcast)) {
|
||||
/* mark the pbuf as link-layer broadcast */
|
||||
p->flags |= PBUF_FLAG_LLBCAST;
|
||||
}
|
||||
}
|
||||
|
||||
switch (type) {
|
||||
#if LWIP_IPV4 && LWIP_ARP
|
||||
/* IP packet? */
|
||||
case PP_HTONS(ETHTYPE_IP):
|
||||
if (!(netif->flags & NETIF_FLAG_ETHARP)) {
|
||||
goto free_and_return;
|
||||
}
|
||||
#if ETHARP_TRUST_IP_MAC
|
||||
/* update ARP table */
|
||||
etharp_ip_input(netif, p);
|
||||
#endif /* ETHARP_TRUST_IP_MAC */
|
||||
/* skip Ethernet header */
|
||||
if ((p->len < ip_hdr_offset) || pbuf_header(p, (s16_t)-ip_hdr_offset)) {
|
||||
LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_LEVEL_WARNING,
|
||||
("ethernet_input: IPv4 packet dropped, too short (%"S16_F"/%"S16_F")\n",
|
||||
p->tot_len, ip_hdr_offset));
|
||||
LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE, ("Can't move over header in packet"));
|
||||
goto free_and_return;
|
||||
} else {
|
||||
/* pass to IP layer */
|
||||
ip4_input(p, netif);
|
||||
}
|
||||
break;
|
||||
|
||||
case PP_HTONS(ETHTYPE_ARP):
|
||||
if (!(netif->flags & NETIF_FLAG_ETHARP)) {
|
||||
goto free_and_return;
|
||||
}
|
||||
/* pass p to ARP module */
|
||||
etharp_arp_input(netif, (struct eth_addr*)(netif->hwaddr), p);
|
||||
break;
|
||||
#endif /* LWIP_IPV4 && LWIP_ARP */
|
||||
#if PPPOE_SUPPORT
|
||||
case PP_HTONS(ETHTYPE_PPPOEDISC): /* PPP Over Ethernet Discovery Stage */
|
||||
pppoe_disc_input(netif, p);
|
||||
break;
|
||||
|
||||
case PP_HTONS(ETHTYPE_PPPOE): /* PPP Over Ethernet Session Stage */
|
||||
pppoe_data_input(netif, p);
|
||||
break;
|
||||
#endif /* PPPOE_SUPPORT */
|
||||
|
||||
#if LWIP_IPV6
|
||||
case PP_HTONS(ETHTYPE_IPV6): /* IPv6 */
|
||||
/* skip Ethernet header */
|
||||
if ((p->len < ip_hdr_offset) || pbuf_header(p, (s16_t)-ip_hdr_offset)) {
|
||||
LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_LEVEL_WARNING,
|
||||
("ethernet_input: IPv6 packet dropped, too short (%"S16_F"/%"S16_F")\n",
|
||||
p->tot_len, ip_hdr_offset));
|
||||
goto free_and_return;
|
||||
} else {
|
||||
/* pass to IPv6 layer */
|
||||
ip6_input(p, netif);
|
||||
}
|
||||
break;
|
||||
#endif /* LWIP_IPV6 */
|
||||
|
||||
default:
|
||||
ETHARP_STATS_INC(etharp.proterr);
|
||||
ETHARP_STATS_INC(etharp.drop);
|
||||
MIB2_STATS_NETIF_INC(netif, ifinunknownprotos);
|
||||
goto free_and_return;
|
||||
}
|
||||
|
||||
/* This means the pbuf is freed or consumed,
|
||||
so the caller doesn't have to free it again */
|
||||
return ERR_OK;
|
||||
|
||||
free_and_return:
|
||||
pbuf_free(p);
|
||||
return ERR_OK;
|
||||
}
|
||||
#endif /* LWIP_ARP || LWIP_ETHERNET */
|
||||
|
||||
218
src/netif/ethernet.c
Normal file
218
src/netif/ethernet.c
Normal file
@ -0,0 +1,218 @@
|
||||
/**
|
||||
* @file
|
||||
* Ethernet common functions
|
||||
*/
|
||||
|
||||
/*
|
||||
* Copyright (c) 2001-2003 Swedish Institute of Computer Science.
|
||||
* Copyright (c) 2003-2004 Leon Woestenberg <leon.woestenberg@axon.tv>
|
||||
* Copyright (c) 2003-2004 Axon Digital Design B.V., The Netherlands.
|
||||
* 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.
|
||||
*
|
||||
*/
|
||||
|
||||
#include "lwip/opt.h"
|
||||
|
||||
#if LWIP_ARP || LWIP_ETHERNET
|
||||
|
||||
#include "netif/ethernet.h"
|
||||
#include "lwip/def.h"
|
||||
#include "lwip/stats.h"
|
||||
#include "netif/etharp.h"
|
||||
#include "lwip/ip.h"
|
||||
#include "lwip/snmp.h"
|
||||
|
||||
#include <string.h>
|
||||
|
||||
const struct eth_addr ethbroadcast = {{0xff,0xff,0xff,0xff,0xff,0xff}};
|
||||
const struct eth_addr ethzero = {{0,0,0,0,0,0}};
|
||||
|
||||
/**
|
||||
* Process received ethernet frames. Using this function instead of directly
|
||||
* calling ip_input and passing ARP frames through etharp in ethernetif_input,
|
||||
* the ARP cache is protected from concurrent access.
|
||||
*
|
||||
* @param p the received packet, p->payload pointing to the ethernet header
|
||||
* @param netif the network interface on which the packet was received
|
||||
*/
|
||||
err_t
|
||||
ethernet_input(struct pbuf *p, struct netif *netif)
|
||||
{
|
||||
struct eth_hdr* ethhdr;
|
||||
u16_t type;
|
||||
#if LWIP_ARP || ETHARP_SUPPORT_VLAN || LWIP_IPV6
|
||||
s16_t ip_hdr_offset = SIZEOF_ETH_HDR;
|
||||
#endif /* LWIP_ARP || ETHARP_SUPPORT_VLAN */
|
||||
|
||||
if (p->len <= SIZEOF_ETH_HDR) {
|
||||
/* a packet with only an ethernet header (or less) is not valid for us */
|
||||
ETHARP_STATS_INC(etharp.proterr);
|
||||
ETHARP_STATS_INC(etharp.drop);
|
||||
MIB2_STATS_NETIF_INC(netif, ifinerrors);
|
||||
goto free_and_return;
|
||||
}
|
||||
|
||||
/* points to packet payload, which starts with an Ethernet header */
|
||||
ethhdr = (struct eth_hdr *)p->payload;
|
||||
LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE,
|
||||
("ethernet_input: dest:%"X8_F":%"X8_F":%"X8_F":%"X8_F":%"X8_F":%"X8_F", src:%"X8_F":%"X8_F":%"X8_F":%"X8_F":%"X8_F":%"X8_F", type:%"X16_F"\n",
|
||||
(unsigned)ethhdr->dest.addr[0], (unsigned)ethhdr->dest.addr[1], (unsigned)ethhdr->dest.addr[2],
|
||||
(unsigned)ethhdr->dest.addr[3], (unsigned)ethhdr->dest.addr[4], (unsigned)ethhdr->dest.addr[5],
|
||||
(unsigned)ethhdr->src.addr[0], (unsigned)ethhdr->src.addr[1], (unsigned)ethhdr->src.addr[2],
|
||||
(unsigned)ethhdr->src.addr[3], (unsigned)ethhdr->src.addr[4], (unsigned)ethhdr->src.addr[5],
|
||||
(unsigned)htons(ethhdr->type)));
|
||||
|
||||
type = ethhdr->type;
|
||||
#if ETHARP_SUPPORT_VLAN
|
||||
if (type == PP_HTONS(ETHTYPE_VLAN)) {
|
||||
struct eth_vlan_hdr *vlan = (struct eth_vlan_hdr*)(((char*)ethhdr) + SIZEOF_ETH_HDR);
|
||||
if (p->len <= SIZEOF_ETH_HDR + SIZEOF_VLAN_HDR) {
|
||||
/* a packet with only an ethernet/vlan header (or less) is not valid for us */
|
||||
ETHARP_STATS_INC(etharp.proterr);
|
||||
ETHARP_STATS_INC(etharp.drop);
|
||||
MIB2_STATS_NETIF_INC(netif, ifinerrors);
|
||||
goto free_and_return;
|
||||
}
|
||||
#if defined(LWIP_HOOK_VLAN_CHECK) || defined(ETHARP_VLAN_CHECK) || defined(ETHARP_VLAN_CHECK_FN) /* if not, allow all VLANs */
|
||||
#ifdef LWIP_HOOK_VLAN_CHECK
|
||||
if (!LWIP_HOOK_VLAN_CHECK(netif, ethhdr, vlan)) {
|
||||
#elif defined(ETHARP_VLAN_CHECK_FN)
|
||||
if (!ETHARP_VLAN_CHECK_FN(ethhdr, vlan)) {
|
||||
#elif defined(ETHARP_VLAN_CHECK)
|
||||
if (VLAN_ID(vlan) != ETHARP_VLAN_CHECK) {
|
||||
#endif
|
||||
/* silently ignore this packet: not for our VLAN */
|
||||
pbuf_free(p);
|
||||
return ERR_OK;
|
||||
}
|
||||
#endif /* defined(LWIP_HOOK_VLAN_CHECK) || defined(ETHARP_VLAN_CHECK) || defined(ETHARP_VLAN_CHECK_FN) */
|
||||
type = vlan->tpid;
|
||||
ip_hdr_offset = SIZEOF_ETH_HDR + SIZEOF_VLAN_HDR;
|
||||
}
|
||||
#endif /* ETHARP_SUPPORT_VLAN */
|
||||
|
||||
#if LWIP_ARP_FILTER_NETIF
|
||||
netif = LWIP_ARP_FILTER_NETIF_FN(p, netif, htons(type));
|
||||
#endif /* LWIP_ARP_FILTER_NETIF*/
|
||||
|
||||
if (ethhdr->dest.addr[0] & 1) {
|
||||
/* this might be a multicast or broadcast packet */
|
||||
if (ethhdr->dest.addr[0] == LL_IP4_MULTICAST_ADDR_0) {
|
||||
#if LWIP_IPV4
|
||||
if ((ethhdr->dest.addr[1] == LL_IP4_MULTICAST_ADDR_1) &&
|
||||
(ethhdr->dest.addr[2] == LL_IP4_MULTICAST_ADDR_2)) {
|
||||
/* mark the pbuf as link-layer multicast */
|
||||
p->flags |= PBUF_FLAG_LLMCAST;
|
||||
}
|
||||
#endif /* LWIP_IPV4 */
|
||||
}
|
||||
#if LWIP_IPV6
|
||||
else if ((ethhdr->dest.addr[0] == LL_IP6_MULTICAST_ADDR_0) &&
|
||||
(ethhdr->dest.addr[1] == LL_IP6_MULTICAST_ADDR_1)) {
|
||||
/* mark the pbuf as link-layer multicast */
|
||||
p->flags |= PBUF_FLAG_LLMCAST;
|
||||
}
|
||||
#endif /* LWIP_IPV6 */
|
||||
else if (eth_addr_cmp(ðhdr->dest, ðbroadcast)) {
|
||||
/* mark the pbuf as link-layer broadcast */
|
||||
p->flags |= PBUF_FLAG_LLBCAST;
|
||||
}
|
||||
}
|
||||
|
||||
switch (type) {
|
||||
#if LWIP_IPV4 && LWIP_ARP
|
||||
/* IP packet? */
|
||||
case PP_HTONS(ETHTYPE_IP):
|
||||
if (!(netif->flags & NETIF_FLAG_ETHARP)) {
|
||||
goto free_and_return;
|
||||
}
|
||||
#if ETHARP_TRUST_IP_MAC
|
||||
/* update ARP table */
|
||||
etharp_ip_input(netif, p);
|
||||
#endif /* ETHARP_TRUST_IP_MAC */
|
||||
/* skip Ethernet header */
|
||||
if ((p->len < ip_hdr_offset) || pbuf_header(p, (s16_t)-ip_hdr_offset)) {
|
||||
LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_LEVEL_WARNING,
|
||||
("ethernet_input: IPv4 packet dropped, too short (%"S16_F"/%"S16_F")\n",
|
||||
p->tot_len, ip_hdr_offset));
|
||||
LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE, ("Can't move over header in packet"));
|
||||
goto free_and_return;
|
||||
} else {
|
||||
/* pass to IP layer */
|
||||
ip4_input(p, netif);
|
||||
}
|
||||
break;
|
||||
|
||||
case PP_HTONS(ETHTYPE_ARP):
|
||||
if (!(netif->flags & NETIF_FLAG_ETHARP)) {
|
||||
goto free_and_return;
|
||||
}
|
||||
/* pass p to ARP module */
|
||||
etharp_arp_input(netif, (struct eth_addr*)(netif->hwaddr), p);
|
||||
break;
|
||||
#endif /* LWIP_IPV4 && LWIP_ARP */
|
||||
#if PPPOE_SUPPORT
|
||||
case PP_HTONS(ETHTYPE_PPPOEDISC): /* PPP Over Ethernet Discovery Stage */
|
||||
pppoe_disc_input(netif, p);
|
||||
break;
|
||||
|
||||
case PP_HTONS(ETHTYPE_PPPOE): /* PPP Over Ethernet Session Stage */
|
||||
pppoe_data_input(netif, p);
|
||||
break;
|
||||
#endif /* PPPOE_SUPPORT */
|
||||
|
||||
#if LWIP_IPV6
|
||||
case PP_HTONS(ETHTYPE_IPV6): /* IPv6 */
|
||||
/* skip Ethernet header */
|
||||
if ((p->len < ip_hdr_offset) || pbuf_header(p, (s16_t)-ip_hdr_offset)) {
|
||||
LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_LEVEL_WARNING,
|
||||
("ethernet_input: IPv6 packet dropped, too short (%"S16_F"/%"S16_F")\n",
|
||||
p->tot_len, ip_hdr_offset));
|
||||
goto free_and_return;
|
||||
} else {
|
||||
/* pass to IPv6 layer */
|
||||
ip6_input(p, netif);
|
||||
}
|
||||
break;
|
||||
#endif /* LWIP_IPV6 */
|
||||
|
||||
default:
|
||||
ETHARP_STATS_INC(etharp.proterr);
|
||||
ETHARP_STATS_INC(etharp.drop);
|
||||
MIB2_STATS_NETIF_INC(netif, ifinunknownprotos);
|
||||
goto free_and_return;
|
||||
}
|
||||
|
||||
/* This means the pbuf is freed or consumed,
|
||||
so the caller doesn't have to free it again */
|
||||
return ERR_OK;
|
||||
|
||||
free_and_return:
|
||||
pbuf_free(p);
|
||||
return ERR_OK;
|
||||
}
|
||||
#endif /* LWIP_ARP || LWIP_ETHERNET */
|
||||
Loading…
Reference in New Issue
Block a user