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authorGregory Nutt <gnutt@nuttx.org>2013-07-12 16:01:37 -0600
committerGregory Nutt <gnutt@nuttx.org>2013-07-12 16:01:37 -0600
commit97a9ac8e49b06572bf929529366d7000e6dfa0ee (patch)
tree5e16267087f820c59fcd552b05c1205c553ca4ef /apps/include/zmodem.h
parent0f587cfa8c982f90b28780136c6e6436b666c92d (diff)
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Build/test framework for the Zmodem sz and rz commands which are on their way
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+/****************************************************************************
+ * apps/include/zmodem.h
+ *
+ * Copyright (C) 2013 Gregory Nutt. All rights reserved.
+ * Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * References:
+ * "The ZMODEM Inter Application File Transfer Protocol", Chuck Forsberg,
+ * Omen Technology Inc., October 14, 1988
+ *
+ * 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. Neither the name NuttX nor the names of its contributors may be
+ * used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "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
+ * COPYRIGHT OWNER OR CONTRIBUTORS 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.
+ *
+ ****************************************************************************/
+
+#ifndef __APPS_INCLUDE_ZMODEM_H
+#define __APPS_INCLUDE_ZMODEM_H
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <stdint.h>
+#include <stdbool.h>
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+/* Configuration ************************************************************/
+/* The size of one buffer used to read data from the remote peer */
+
+#ifndef CONFIG_SYSTEM_ZMODEM_RCVBUFSIZE
+# define CONFIG_SYSTEM_ZMODEM_RCVBUFSIZE 512
+#endif
+
+/* Data may be received in gulps of varying size and alignment. Received
+ * packets data is properly packed into a packet buffer of this size.
+ */
+
+#ifndef CONFIG_SYSTEM_ZMODEM_PKTBUFSIZE
+# define CONFIG_SYSTEM_ZMODEM_PKTBUFSIZE 512
+#endif
+
+/* The size of one transmit buffer used for composing messages sent to the
+ * remote peer.
+ */
+
+#ifndef CONFIG_SYSTEM_ZMODEM_SNDBUFSIZE
+# define CONFIG_SYSTEM_ZMODEM_SNDBUFSIZE 512
+#endif
+
+/* Absolute pathes are not accepted. This configuration value must be
+ * set to provide the path to the file storage directory (such as a
+ * mountpoint directory).
+ */
+
+#ifndef CONFIG_SYSTEM_ZMODEM_MOUNTPOINT
+# define CONFIG_SYSTEM_ZMODEM_MOUNTPOINT "/tmp"
+#endif
+
+/* Response time for sender to respond to requests */
+
+#ifndef CONFIG_SYSTEM_ZMODEM_RESPTIME
+# define CONFIG_SYSTEM_ZMODEM_RESPTIME 10
+#endif
+
+/* Receiver serial number */
+
+#ifndef CONFIG_SYSTEM_ZMODEM_SERIALNO
+# define CONFIG_SYSTEM_ZMODEM_SERIALNO 1
+#endif
+
+/* Max receive errors before canceling the transfer */
+
+#ifndef CONFIG_SYSTEM_ZMODEM_MAXERRORS
+# define CONFIG_SYSTEM_ZMODEM_MAXERRORS 20
+#endif
+
+#ifndef CONFIG_SYSTEM_ZMODEM_MOUNTPOINT
+# define CONFIG_SYSTEM_ZMODEM_MOUNTPOINT "/tmp"
+#endif
+
+/****************************************************************************
+ * Public Types
+ ****************************************************************************/
+/* Opaque handles returned by initialization functions */
+
+typedef FAR void *ZMHANDLE;
+typedef FAR void *ZMRHANDLE;
+typedef FAR void *ZMSHANDLE;
+
+/* Enumerations describing arguments to zms_initialize() */
+
+enum zm_xfertype_e
+{
+ XM_XFERTYPE_NORMAL = 0, /* Normal file transfer */
+ XM_XFERTYPE_BINARY = 1, /* Binary transfer */
+ XM_XFERTYPE_ASCII = 2, /* Convert \n to local EOL convention */
+ XM_XFERTYPE_RESUME = 3 /* Resume interrupted transfer or append to file. */
+};
+
+enum zm_option_e
+{
+ XM_OPTION_NONE = 0, /* Transfer if source newer or longer */
+ XM_OPTION_NEWL = 1, /* Transfer if source newer or longer */
+ XM_OPTION_CRC = 2, /* Transfer if different CRC or length */
+ XM_OPTION_APPEND = 3, /* Append to existing file, if any */
+ XM_OPTION_REPLACE = 4, /* Replace existing file */
+ XM_OPTION_NEW = 5, /* Transfer if source is newer */
+ XM_OPTION_DIFF = 6, /* Transfer if dates or lengths different */
+ XM_OPTION_CREATE = 7, /* Protect: transfer only if dest doesn't exist */
+ XM_OPTION_RENAME = 8 /* Change filename if destination exists */
+};
+
+/****************************************************************************
+ * Public Data
+ ****************************************************************************/
+
+#undef EXTERN
+#if defined(__cplusplus)
+#define EXTERN extern "C"
+extern "C"
+{
+#else
+#define EXTERN extern
+#endif
+
+/****************************************************************************
+ * Public Function Prototypes
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: zmr_initialize
+ *
+ * Description:
+ * Initialize for Zmodem receive operation
+ *
+ * Input Parameters:
+ * remfd - The R/W file/socket descriptor to use for communication with the
+ * remote peer.
+ *
+ ****************************************************************************/
+
+ZMRHANDLE zmr_initialize(int remfd);
+
+/****************************************************************************
+ * Name: zmr_release
+ *
+ * Description:
+ * Called by the user when there are no more files to receive.
+ *
+ ****************************************************************************/
+
+int zmr_release(ZMRHANDLE);
+
+/****************************************************************************
+ * Name: zms_initialize
+ *
+ * Description:
+ * Initialize for Zmodem send operation. The overall usage is as follows:
+ *
+ * 1) Call zms_initialize() to create the partially initialized struct
+ * zm_state_s instance.
+ * 2) Make any custom settings in the struct zms_state_s instance.
+ * 3) Create a stream instance to get the "file" to transmit and add
+ * the filename to pzms
+ * 4) Call zms_upload() to transfer the file.
+ * 5) Repeat 3) and 4) to transfer as many files as desired.
+ * 6) Call zms_release() when the final file has been transferred.
+ *
+ * Input Parameters:
+ * remfd - The R/W file/socket descriptor to use for communication with the
+ * remote peer.
+ *
+ ****************************************************************************/
+
+ZMSHANDLE zms_initialize(int remfd);
+
+/****************************************************************************
+ * Name: zms_send
+ *
+ * Description:
+ * Send a file.
+ *
+ * Input Parameters:
+ * handle - Handle previoulsy returned by xms_initialize()
+ * filename - The name of the local file to transfer
+ * rfilename - The name of the remote file name to create
+ * option - Describes optional transfer behavior
+ * f1 - The F1 transfer flags
+ * skip - True: Skip if file not present at receiving end.
+ *
+ ****************************************************************************/
+
+int zms_send(ZMSHANDLE handle, FAR const char *filename,
+ FAR const char *rfilename, enum zm_xfertype_e xfertype,
+ enum zm_option_e option, bool skip);
+
+/****************************************************************************
+ * Name: zms_release
+ *
+ * Description:
+ * Called by the user when there are no more files to send.
+ *
+ ****************************************************************************/
+
+int zms_release(ZMSHANDLE handle);
+
+/****************************************************************************
+ * Name: zms_hwflowcontrol
+ *
+ * Description:
+ * If CONFIG_SYSTEM_ZMODEM_FULLSTREAMING is defined, then the system
+ * must provide the following interface in order to enable/disable hardware
+ * flow control on the device used to communicate with the remote peer.
+ *
+ ****************************************************************************/
+
+#ifdef CONFIG_SYSTEM_ZMODEM_FULLSTREAMING
+int zms_hwflowcontrol(int remfd, bool enable);
+#endif
+
+#undef EXTERN
+#if defined(__cplusplus)
+}
+#endif
+
+#endif /* __APPS_INCLUDE_ZMODEM_H */