Diff: lwip/include/netif/etharp.h

Revision:

5:dd63a1e02b1b

Parent:

0:632c9925f013

--- a/lwip/include/netif/etharp.h	Fri Jul 09 14:46:47 2010 +0000
+++ b/lwip/include/netif/etharp.h	Tue Jul 27 15:59:42 2010 +0000
@@ -68,7 +68,7 @@
 #  include "arch/bpstruct.h"
 #endif
 PACK_STRUCT_BEGIN
-/** Ethernet header */
+/* Ethernet header */
 struct eth_hdr {
 #if ETH_PAD_SIZE
   PACK_STRUCT_FIELD(u8_t padding[ETH_PAD_SIZE]);
@@ -90,7 +90,7 @@
 #  include "arch/bpstruct.h"
 #endif
 PACK_STRUCT_BEGIN
-/** VLAN header inserted between ethernet header and payload
+/* VLAN header inserted between ethernet header and payload
  * if 'type' in ethernet header is ETHTYPE_VLAN.
  * See IEEE802.Q */
 struct eth_vlan_hdr {
@@ -111,11 +111,12 @@
 #  include "arch/bpstruct.h"
 #endif
 PACK_STRUCT_BEGIN
-/** the ARP message, see RFC 826 ("Packet format") */
+/* the ARP message, see RFC 826 ("Packet format") */
 struct etharp_hdr {
   PACK_STRUCT_FIELD(u16_t hwtype);
   PACK_STRUCT_FIELD(u16_t proto);
-  PACK_STRUCT_FIELD(u16_t _hwlen_protolen);
+  PACK_STRUCT_FIELD(u8_t  hwlen);
+  PACK_STRUCT_FIELD(u8_t  protolen);
   PACK_STRUCT_FIELD(u16_t opcode);
   PACK_STRUCT_FIELD(struct eth_addr shwaddr);
   PACK_STRUCT_FIELD(struct ip_addr2 sipaddr);
@@ -130,7 +131,7 @@
 #define SIZEOF_ETHARP_HDR 28
 #define SIZEOF_ETHARP_PACKET (SIZEOF_ETH_HDR + SIZEOF_ETHARP_HDR)
 
-/** 5 seconds period */
+/* 5 seconds period */
 #define ARP_TMR_INTERVAL 5000
 
 #define ETHTYPE_ARP       0x0806
@@ -139,14 +140,36 @@
 #define ETHTYPE_PPPOEDISC 0x8863  /* PPP Over Ethernet Discovery Stage */
 #define ETHTYPE_PPPOE     0x8864  /* PPP Over Ethernet Session Stage */
 
+/* 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(src, dst)  SMEMCPY(src, dst, ETHARP_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(src, dst)  SMEMCPY(src, dst, ETHARP_HWADDR_LEN)
+#endif
+
 #if LWIP_ARP /* don't build if not configured for use in lwipopts.h */
 
-/** ARP message types (opcodes) */
+/* ARP message types (opcodes) */
 #define ARP_REQUEST 1
 #define ARP_REPLY   2
 
+/* Define this to 1 and define LWIP_ARP_FILTER_NETIF_FN(pbuf, netif, type)
+ * to a filter function that returns the correct netif when using multiple
+ * netifs on one hardware interface where the netif's low-level receive
+ * routine cannot decide for the correct netif (e.g. when mapping multiple
+ * IP addresses to one hardware interface).
+ */
+#ifndef LWIP_ARP_FILTER_NETIF
+#define LWIP_ARP_FILTER_NETIF 0
+#endif
+
 #if ARP_QUEUEING
-/** struct for queueing outgoing packets for unknown address
+/* struct for queueing outgoing packets for unknown address
   * defined here to be accessed by memp.h
   */
 struct etharp_q_entry {
@@ -162,12 +185,17 @@
 err_t etharp_output(struct netif *netif, struct pbuf *q, ip_addr_t *ipaddr);
 err_t etharp_query(struct netif *netif, ip_addr_t *ipaddr, struct pbuf *q);
 err_t etharp_request(struct netif *netif, ip_addr_t *ipaddr);
-/** For Ethernet network interfaces, we might want to send "gratuitous ARP";
+/* For Ethernet network interfaces, we might want to send "gratuitous ARP";
  *  this is an ARP packet sent by a node in order to spontaneously cause other
  *  nodes to update an entry in their ARP cache.
  *  From RFC 3220 "IP Mobility Support for IPv4" section 4.6. */
 #define etharp_gratuitous(netif) etharp_request((netif), &(netif)->ip_addr)
 
+#if ETHARP_SUPPORT_STATIC_ENTRIES
+err_t etharp_add_static_entry(ip_addr_t *ipaddr, struct eth_addr *ethaddr);
+err_t etharp_remove_static_entry(ip_addr_t *ipaddr);
+#endif /* ETHARP_SUPPORT_STATIC_ENTRIES */
+
 #if LWIP_AUTOIP
 err_t etharp_raw(struct netif *netif, const struct eth_addr *ethsrc_addr,
                  const struct eth_addr *ethdst_addr,
@@ -176,7 +204,6 @@
                  const u16_t opcode);
 #endif /* LWIP_AUTOIP */
 
-
 #endif /* LWIP_ARP */
 
 err_t ethernet_input(struct pbuf *p, struct netif *netif);