mirror/lwip
1
0
Fork 0
mirror of https://github.com/lwip-tcpip/lwip.git synced 2024-07-02 19:08:57 +00:00
Code Issues Packages Projects Releases Wiki Activity

Set/get ARP hwlen and protolen in one piece.

Browse Source
This commit is contained in:
goldsimon 2007-06-30 11:42:41 +00:00
parent 6c3c184bc7
commit c91caa06d3
1 changed files with 3 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
src/netif/etharp.c
View File

@ -600,9 +600,8 @@ etharp_arp_input(struct netif *netif, struct eth_addr *ethaddr, struct pbuf *p)
/* RFC 826 "Packet Reception": */
if ((hdr->hwtype != htons(HWTYPE_ETHERNET)) ||
(ARPH_HWLEN(hdr) != ETHARP_HWADDR_LEN) ||
(hdr->_hwlen_protolen != htons((ETHARP_HWADDR_LEN << 8) | sizeof(struct ip_addr))) ||
(hdr->proto != htons(ETHTYPE_IP)) ||
(ARPH_PROTOLEN(hdr) != sizeof(struct ip_addr)) ||
(hdr->ethhdr.type != htons(ETHTYPE_ARP))) {
LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE | 1,
("etharp_arp_input: packet dropped, wrong hw type, hwlen, proto, protolen or ethernet type (%"U16_F"/%"U16_F"/%"U16_F"/%"U16_F"/%"U16_F")\n",
@ -1000,10 +999,9 @@ etharp_raw(struct netif *netif, const struct eth_addr *ethsrc_addr,
hdr->dipaddr = *(struct ip_addr2 *)ipdst_addr;
hdr->hwtype = htons(HWTYPE_ETHERNET);
ARPH_HWLEN_SET(hdr, ETHARP_HWADDR_LEN);
hdr->proto = htons(ETHTYPE_IP);
ARPH_PROTOLEN_SET(hdr, sizeof(struct ip_addr));
/* set hwlen and protolen together */
hdr->_hwlen_protolen = htons((ETHARP_HWADDR_LEN << 8) | sizeof(struct ip_addr));
hdr->ethhdr.type = htons(ETHTYPE_ARP);
/* send ARP query */