1 files changed, 74 insertions, 0 deletions
diff --git a/src/seastar/dpdk/lib/librte_net/rte_arp.h b/src/seastar/dpdk/lib/librte_net/rte_arp.h
new file mode 100644
index 000000000..139a84ca5
--- /dev/null
+++ b/src/seastar/dpdk/lib/librte_net/rte_arp.h
@@ -0,0 +1,74 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2013 6WIND S.A.
+ */
+
+#ifndef _RTE_ARP_H_
+#define _RTE_ARP_H_
+
+/**
+ * @file
+ *
+ * ARP-related defines
+ */
+
+#include <stdint.h>
+#include <rte_ether.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * ARP header IPv4 payload.
+ */
+struct arp_ipv4 {
+	struct ether_addr arp_sha;  /**< sender hardware address */
+	uint32_t          arp_sip;  /**< sender IP address */
+	struct ether_addr arp_tha;  /**< target hardware address */
+	uint32_t          arp_tip;  /**< target IP address */
+} __attribute__((__packed__));
+
+/**
+ * ARP header.
+ */
+struct arp_hdr {
+	uint16_t arp_hrd;    /* format of hardware address */
+#define ARP_HRD_ETHER     1  /* ARP Ethernet address format */
+
+	uint16_t arp_pro;    /* format of protocol address */
+	uint8_t  arp_hln;    /* length of hardware address */
+	uint8_t  arp_pln;    /* length of protocol address */
+	uint16_t arp_op;     /* ARP opcode (command) */
+#define	ARP_OP_REQUEST    1 /* request to resolve address */
+#define	ARP_OP_REPLY      2 /* response to previous request */
+#define	ARP_OP_REVREQUEST 3 /* request proto addr given hardware */
+#define	ARP_OP_REVREPLY   4 /* response giving protocol address */
+#define	ARP_OP_INVREQUEST 8 /* request to identify peer */
+#define	ARP_OP_INVREPLY   9 /* response identifying peer */
+
+	struct arp_ipv4 arp_data;
+} __attribute__((__packed__));
+
+/**
+ * @warning
+ * @b EXPERIMENTAL: this API may change without prior notice
+ *
+ * Make a RARP packet based on MAC addr.
+ *
+ * @param mpool
+ *   Pointer to the rte_mempool
+ * @param mac
+ *   Pointer to the MAC addr
+ *
+ * @return
+ *   - RARP packet pointer on success, or NULL on error
+ */
+struct rte_mbuf * __rte_experimental
+rte_net_make_rarp_packet(struct rte_mempool *mpool,
+		const struct ether_addr *mac);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _RTE_ARP_H_ */