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Added option LWIP_ARP_FILTER_NETIF to use multiple IPs on one hardware interface (by using multiple netifs, each with its own IP)

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goldsimon 2010-05-10 14:10:46 +00:00
parent 597764e35b
commit d656e9f28e
2 changed files with 14 additions and 0 deletions
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10
src/include/netif/etharp.h
View File

@ -157,6 +157,16 @@ PACK_STRUCT_END
#define ARP_REQUEST 1 #define ARP_REQUEST 1
#define ARP_REPLY 2 #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 #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 * defined here to be accessed by memp.h

4
src/netif/etharp.c
View File

@ -1226,6 +1226,10 @@ ethernet_input(struct pbuf *p, struct netif *netif)
} }
#endif /* ETHARP_SUPPORT_VLAN */ #endif /* ETHARP_SUPPORT_VLAN */
#if LWIP_ARP_FILTER_NETIF
netif = LWIP_ARP_FILTER_NETIF_FN(p, netif, type);
#endif /* LWIP_ARP_FILTER_NETIF*/
switch (type) { switch (type) {
#if LWIP_ARP #if LWIP_ARP
/* IP packet? */ /* IP packet? */