1 files changed, 64 insertions, 0 deletions
diff --git a/src/include/ipxe/dhcppkt.h b/src/include/ipxe/dhcppkt.h
new file mode 100644
index 000000000..5709cc7d1
--- /dev/null
+++ b/src/include/ipxe/dhcppkt.h
@@ -0,0 +1,64 @@
+#ifndef _IPXE_DHCPPKT_H
+#define _IPXE_DHCPPKT_H
+
+/** @file
+ *
+ * DHCP packets
+ *
+ */
+
+FILE_LICENCE ( GPL2_OR_LATER );
+
+#include <ipxe/dhcp.h>
+#include <ipxe/dhcpopts.h>
+#include <ipxe/refcnt.h>
+
+/**
+ * A DHCP packet
+ *
+ */
+struct dhcp_packet {
+	/** Reference counter */
+	struct refcnt refcnt;
+	/** The DHCP packet contents */
+	struct dhcphdr *dhcphdr;
+	/** Maximum length of the DHCP packet buffer */
+	size_t max_len;
+	/** Used length of the DHCP packet buffer */
+	size_t len;
+	/** DHCP options */
+	struct dhcp_options options;
+	/** Settings interface */
+	struct settings settings;
+};
+
+/**
+ * Increment reference count on DHCP packet
+ *
+ * @v dhcppkt		DHCP packet
+ * @ret dhcppkt		DHCP packet
+ */
+static inline __attribute__ (( always_inline )) struct dhcp_packet *
+dhcppkt_get ( struct dhcp_packet *dhcppkt ) {
+	ref_get ( &dhcppkt->refcnt );
+	return dhcppkt;
+}
+
+/**
+ * Decrement reference count on DHCP packet
+ *
+ * @v dhcppkt		DHCP packet
+ */
+static inline __attribute__ (( always_inline )) void
+dhcppkt_put ( struct dhcp_packet *dhcppkt ) {
+	ref_put ( &dhcppkt->refcnt );
+}
+
+extern int dhcppkt_store ( struct dhcp_packet *dhcppkt, unsigned int tag,
+			   const void *data, size_t len );
+extern int dhcppkt_fetch ( struct dhcp_packet *dhcppkt, unsigned int tag,
+			   void *data, size_t len );
+extern void dhcppkt_init ( struct dhcp_packet *dhcppkt, 
+			   struct dhcphdr *data, size_t len );
+
+#endif /* _IPXE_DHCPPKT_H */