tftp_common.h

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/*
 * 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.
 *
 * Author: Logan Gunthorpe <logang@deltatee.com>
 *
 */
 
#ifndef LWIP_HDR_APPS_TFTP_COMMON_H
#define LWIP_HDR_APPS_TFTP_COMMON_H
 
#include "lwip/apps/tftp_opts.h"
#include "lwip/err.h"
#include "lwip/pbuf.h"
#include "lwip/ip_addr.h"
 
#ifdef __cplusplus
extern "C" {
#endif

struct tftp_context {
  void* (*open)(const char* fname, const char* mode, u8_t write);
  void (*close)(void* handle);
  int (*read)(void* handle, void* buf, int bytes);
  int (*write)(void* handle, struct pbuf* p);
  void (*error)(void* handle, int err, const char* msg, int size);
};
 
#define LWIP_TFTP_MODE_SERVER       0x01
#define LWIP_TFTP_MODE_CLIENT       0x02
#define LWIP_TFTP_MODE_CLIENTSERVER (LWIP_TFTP_MODE_SERVER | LWIP_TFTP_MODE_CLIENT)
 
err_t tftp_init_common(u8_t mode, const struct tftp_context* ctx);
void tftp_cleanup(void);
 
#ifdef __cplusplus
}
#endif
 
#endif /* LWIP_HDR_APPS_TFTP_COMMON_H */