bfb/bfb.c File Reference

BFB transport encapsulation (used for Siemens mobile equipment). More...

#include <stdio.h>
#include <stdlib.h>
#include <inttypes.h>
#include <string.h>
#include <unistd.h>
#include <netinet/in.h>
#include "crc.h"
#include "bfb.h"
#include <common.h>

Defines
#define	STRUCT_OFFSET(struct_type, member)   ((uint64_t) ((char*) &((struct_type*) 0)->member))
#define	STRUCT_MEMBER_P(struct_p, struct_offset)   ((void *) ((char*) (struct_p) + (uint64_t) (struct_offset)))
#define	STRUCT_MEMBER(member_type, struct_p, struct_offset)   (*(member_type*) STRUCT_MEMBER_P ((struct_p), (struct_offset)))
#define	htoms(A)   (A)
#define	htoml(A)   (A)
#define	mtohs(A)   (A)
#define	mtohl(A)   (A)
Functions
uint8_t	bfb_checksum (uint8_t *data, int len)
	Returns the whole buffer folded with xor.
int	bfb_stuff_data (uint8_t *buffer, uint8_t type, uint8_t *data, uint16_t len, uint8_t seq)
	Stuff data frame into serial cable encapsulation.
int	bfb_write_subcmd (fd_t fd, uint8_t type, uint8_t subtype)
	Send a cmd, subcmd packet, add chk (no parameters).
int	bfb_write_subcmd0 (fd_t fd, uint8_t type, uint8_t subtype)
	Send a cmd, subcmd packet.
int	bfb_write_subcmd8 (fd_t fd, uint8_t type, uint8_t subtype, uint8_t p1)
	Send a cmd, subcmd, data packet.
int	bfb_write_subcmd1 (fd_t fd, uint8_t type, uint8_t subtype, uint16_t p1)
	Send a cmd, subcmd packet, add chk (one word parameter).
int	bfb_write_subcmd2 (fd_t fd, uint8_t type, uint8_t subtype, uint16_t p1, uint16_t p2)
	Send a cmd, subcmd packet, add chk (two word parameter).
int	bfb_write_subcmd3 (fd_t fd, uint8_t type, uint8_t subtype, uint16_t p1, uint16_t p2, uint16_t p3)
	Send a cmd, subcmd packet, add chk (three word parameter).
int	bfb_write_subcmd_lw (fd_t fd, uint8_t type, uint8_t subtype, uint32_t p1, uint16_t p2)
	Send a cmd, subcmd packet, add long, word parameter.
int	bfb_write_packets (fd_t fd, uint8_t type, uint8_t *buffer, int length)
	Send actual packets.
int	bfb_send_data (fd_t fd, uint8_t type, uint8_t *data, uint16_t length, uint8_t seq)
	Stuff data into packet buffers and send all packets.
bfb_frame_t *	bfb_read_packets (uint8_t *buffer, int *length)
	Retrieve actual packets.
int	bfb_assemble_data (bfb_data_t **data, int *size, int *len, bfb_frame_t *frame)
	Append BFB frame to a data buffer.
int	bfb_check_data (bfb_data_t *data, int len)
	Check if data buffer is complete and valid.

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Detailed Description

BFB transport encapsulation (used for Siemens mobile equipment).

ObexFTP library - language bindings for OBEX file transfer.

Copyright (c) 2002-2007 Christian W. Zuckschwerdt <zany@triq.net>

ObexFTP is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along with ObexFTP. If not, see <http://www.gnu.org/>.

---

Define Documentation

#define htoml

(

A

)

(A)

#define htoms

(

A

)

(A)

#define mtohl

(

A

)

(A)

#define mtohs

(

A

)

(A)

#define STRUCT_MEMBER	(	member_type,
		struct_p,
		struct_offset		)	(*(member_type*) STRUCT_MEMBER_P ((struct_p), (struct_offset)))

#define STRUCT_MEMBER_P	(	struct_p,
		struct_offset		)	((void *) ((char*) (struct_p) + (uint64_t) (struct_offset)))

#define STRUCT_OFFSET	(	struct_type,
		member		)	((uint64_t) ((char*) &((struct_type*) 0)->member))

---

Function Documentation

int bfb_assemble_data	(	bfb_data_t **	data,
		int *	size,
		int *	len,
		bfb_frame_t *	frame
	)

Append BFB frame to a data buffer.

int bfb_check_data	(	bfb_data_t *	data,
		int	len
	)

Check if data buffer is complete and valid.

uint8_t bfb_checksum	(	uint8_t *	data,
		int	len
	)

Returns the whole buffer folded with xor.

bfb_frame_t* bfb_read_packets	(	uint8_t *	buffer,
		int *	length
	)

Retrieve actual packets.

int bfb_send_data	(	fd_t	fd,
		uint8_t	type,
		uint8_t *	data,
		uint16_t	length,
		uint8_t	seq
	)

Stuff data into packet buffers and send all packets.

int bfb_stuff_data	(	uint8_t *	buffer,
		uint8_t	type,
		uint8_t *	data,
		uint16_t	len,
		uint8_t	seq
	)

Stuff data frame into serial cable encapsulation.

buffer needs to be of at leaset len+7 size Type 0x01: "prepare" command. Type 0x02: first transmission in a row. Type 0x03: continued transmission. seq needs to be incremented afterwards.

int bfb_write_packets	(	fd_t	fd,
		uint8_t	type,
		uint8_t *	buffer,
		int	length
	)

Send actual packets.

Patch from Jorge Ventura to handle EAGAIN from write.

int bfb_write_subcmd	(	fd_t	fd,
		uint8_t	type,
		uint8_t	subtype
	)

Send a cmd, subcmd packet, add chk (no parameters).

int bfb_write_subcmd0	(	fd_t	fd,
		uint8_t	type,
		uint8_t	subtype
	)

Send a cmd, subcmd packet.

int bfb_write_subcmd1	(	fd_t	fd,
		uint8_t	type,
		uint8_t	subtype,
		uint16_t	p1
	)

Send a cmd, subcmd packet, add chk (one word parameter).

int bfb_write_subcmd2	(	fd_t	fd,
		uint8_t	type,
		uint8_t	subtype,
		uint16_t	p1,
		uint16_t	p2
	)

Send a cmd, subcmd packet, add chk (two word parameter).

int bfb_write_subcmd3	(	fd_t	fd,
		uint8_t	type,
		uint8_t	subtype,
		uint16_t	p1,
		uint16_t	p2,
		uint16_t	p3
	)

Send a cmd, subcmd packet, add chk (three word parameter).

int bfb_write_subcmd8	(	fd_t	fd,
		uint8_t	type,
		uint8_t	subtype,
		uint8_t	p1
	)

Send a cmd, subcmd, data packet.

int bfb_write_subcmd_lw	(	fd_t	fd,
		uint8_t	type,
		uint8_t	subtype,
		uint32_t	p1,
		uint16_t	p2
	)

Send a cmd, subcmd packet, add long, word parameter.

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