initial commit of lk (little kernel) project
diff --git a/lib/lwip/src/include/lwip/raw.h b/lib/lwip/src/include/lwip/raw.h
new file mode 100644
index 0000000..6f7a987
--- /dev/null
+++ b/lib/lwip/src/include/lwip/raw.h
@@ -0,0 +1,74 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ */
+#ifndef __LWIP_RAW_H__
+#define __LWIP_RAW_H__
+
+#include "lwip/arch.h"
+
+#include "lwip/pbuf.h"
+#include "lwip/inet.h"
+#include "lwip/ip.h"
+
+struct raw_pcb {
+/* Common members of all PCB types */
+ IP_PCB;
+
+ struct raw_pcb *next;
+
+ u16_t protocol;
+
+ u8_t (* recv)(void *arg, struct raw_pcb *pcb, struct pbuf *p,
+ struct ip_addr *addr);
+ void *recv_arg;
+};
+
+/* The following functions is the application layer interface to the
+ RAW code. */
+struct raw_pcb * raw_new (u16_t proto);
+void raw_remove (struct raw_pcb *pcb);
+err_t raw_bind (struct raw_pcb *pcb, struct ip_addr *ipaddr);
+err_t raw_connect (struct raw_pcb *pcb, struct ip_addr *ipaddr);
+
+void raw_recv (struct raw_pcb *pcb,
+ u8_t (* recv)(void *arg, struct raw_pcb *pcb,
+ struct pbuf *p,
+ struct ip_addr *addr),
+ void *recv_arg);
+err_t raw_sendto (struct raw_pcb *pcb, struct pbuf *p, struct ip_addr *ipaddr);
+err_t raw_send (struct raw_pcb *pcb, struct pbuf *p);
+
+/* The following functions are the lower layer interface to RAW. */
+u8_t raw_input (struct pbuf *p, struct netif *inp);
+void raw_init (void);
+
+
+#endif /* __LWIP_RAW_H__ */