#define _ARP_H_
#include <rte_ether.h>
+#include "etypes.h"
+#include "mbuf_utils.h"
#define ARP_REQUEST 0x100
#define ARP_REPLY 0x200
return hdr->arp.data.spa == hdr->arp.data.tpa;
}
-static inline void prepare_arp_reply(struct ether_hdr_arp *hdr_arp, struct ether_addr *s_addr)
+static inline void build_arp_reply(struct ether_hdr_arp *hdr_arp, struct ether_addr *s_addr)
{
uint32_t ip_source = hdr_arp->arp.data.spa;
+ memcpy(hdr_arp->ether_hdr.d_addr.addr_bytes, hdr_arp->ether_hdr.s_addr.addr_bytes, sizeof(struct ether_addr));
+ memcpy(hdr_arp->ether_hdr.s_addr.addr_bytes, s_addr, sizeof(struct ether_addr));
+
hdr_arp->arp.data.spa = hdr_arp->arp.data.tpa;
hdr_arp->arp.data.tpa = ip_source;
hdr_arp->arp.oper = 0x200;
memcpy(&hdr_arp->arp.data.sha, s_addr, sizeof(struct ether_addr));
}
+static inline void build_arp_request(struct rte_mbuf *mbuf, struct ether_addr *src_mac, uint32_t ip_dst, uint32_t ip_src)
+{
+ struct ether_hdr_arp *hdr_arp = rte_pktmbuf_mtod(mbuf, struct ether_hdr_arp *);
+ uint64_t mac_bcast = 0xFFFFFFFFFFFF;
+ rte_pktmbuf_pkt_len(mbuf) = 42;
+ rte_pktmbuf_data_len(mbuf) = 42;
+ init_mbuf_seg(mbuf);
+
+ memcpy(&hdr_arp->ether_hdr.d_addr.addr_bytes, &mac_bcast, 6);
+ memcpy(&hdr_arp->ether_hdr.s_addr.addr_bytes, src_mac, 6);
+ hdr_arp->ether_hdr.ether_type = ETYPE_ARP;
+ hdr_arp->arp.htype = 0x100,
+ hdr_arp->arp.ptype = 0x0008;
+ hdr_arp->arp.hlen = 6;
+ hdr_arp->arp.plen = 4;
+ hdr_arp->arp.oper = 0x100;
+ hdr_arp->arp.data.spa = ip_src;
+ hdr_arp->arp.data.tpa = ip_dst;
+ memset(&hdr_arp->arp.data.tha, 0, sizeof(struct ether_addr));
+ memcpy(&hdr_arp->arp.data.sha, src_mac, sizeof(struct ether_addr));
+}
+
static void create_mac(struct ether_hdr_arp *hdr, struct ether_addr *addr)
{
addr->addr_bytes[0] = 0x2;