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Fix part 2 of bug #50042: ETHADDR16_COPY from netif->hwaddr

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Eliminate ETHADDR32_COPY macro - it cannot be used in ETH_PAD_SIZE case. I could have kept it by defining it to ETHADDR16_COPY in case of ETH_PAD_SIZE, but I did not consider it worth another #ifdef mess.
This commit is contained in:
Dirk Ziegelmeier 2017-01-13 08:18:33 +01:00
parent 6748aa0818
commit 92511f4711
3 changed files with 2 additions and 8 deletions
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2
src/core/ipv4/etharp.c
View File

@ -456,7 +456,7 @@ etharp_update_arp_entry(struct netif *netif, const ip4_addr_t *ipaddr, struct et
LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE, ("etharp_update_arp_entry: updating stable entry %"S16_F"\n", (s16_t)i));
/* update address */
ETHADDR32_COPY(&arp_table[i].ethaddr, ethaddr);
ETHADDR16_COPY(&arp_table[i].ethaddr, ethaddr);
/* reset time stamp */
arp_table[i].ctime = 0;
/* this is where we will send out queued packets! */

6
src/include/lwip/prot/ethernet.h
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@ -149,12 +149,6 @@ 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

2
src/netif/ethernet.c
View File

@ -289,7 +289,7 @@ ethernet_output(struct netif* netif, struct pbuf* p,
ethhdr = (struct eth_hdr*)p->payload;
ethhdr->type = eth_type_be;
ETHADDR32_COPY(&ethhdr->dest, dst);
ETHADDR16_COPY(&ethhdr->dest, dst);
ETHADDR16_COPY(&ethhdr->src, src);
LWIP_ASSERT("netif->hwaddr_len must be 6 for ethernet_output!",