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-rw-r--r--networking/udhcp/arpping.c6
-rw-r--r--networking/udhcp/arpping.h9
2 files changed, 10 insertions, 5 deletions
diff --git a/networking/udhcp/arpping.c b/networking/udhcp/arpping.c
index f2e3768c5..23c7d46b3 100644
--- a/networking/udhcp/arpping.c
+++ b/networking/udhcp/arpping.c
@@ -60,9 +60,9 @@ int arpping(uint32_t yiaddr, uint32_t ip, uint8_t *mac, char *interface)
/* send arp request */
memset(&arp, 0, sizeof(arp));
- memcpy(arp.ethhdr.h_dest, MAC_BCAST_ADDR, 6); /* MAC DA */
- memcpy(arp.ethhdr.h_source, mac, 6); /* MAC SA */
- arp.ethhdr.h_proto = htons(ETH_P_ARP); /* protocol type (Ethernet) */
+ memcpy(arp.h_dest, MAC_BCAST_ADDR, 6); /* MAC DA */
+ memcpy(arp.h_source, mac, 6); /* MAC SA */
+ arp.h_proto = htons(ETH_P_ARP); /* protocol type (Ethernet) */
arp.htype = htons(ARPHRD_ETHER); /* hardware type */
arp.ptype = htons(ETH_P_IP); /* protocol type (ARP message) */
arp.hlen = 6; /* hardware address length */
diff --git a/networking/udhcp/arpping.h b/networking/udhcp/arpping.h
index 99413aab6..6cbd2979f 100644
--- a/networking/udhcp/arpping.h
+++ b/networking/udhcp/arpping.h
@@ -11,7 +11,12 @@
#include <netinet/in.h>
struct arpMsg {
- struct ethhdr ethhdr; /* Ethernet header */
+ /* Ethernet header */
+ u_char h_dest[6]; /* destination ether addr */
+ u_char h_source[6]; /* source ether addr */
+ u_short h_proto; /* packet type ID field */
+
+ /* ARP packet */
uint16_t htype; /* hardware type (must be ARPHRD_ETHER) */
uint16_t ptype; /* protocol type (must be ETH_P_IP) */
uint8_t hlen; /* hardware address length (must be 6) */
@@ -22,7 +27,7 @@ struct arpMsg {
uint8_t tHaddr[6]; /* target's hardware address */
uint8_t tInaddr[4]; /* target's IP address */
uint8_t pad[18]; /* pad for min. Ethernet payload (60 bytes) */
-};
+} __attribute__ ((packed));
/* function prototypes */
int arpping(uint32_t yiaddr, uint32_t ip, uint8_t *arp, char *interface);