udp_transceiver.c File Reference

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Detailed Description

Needs short description here.

Author:

Jeroen Asselman

Date:

2004

#include "../common.h"
#include <math.h>
#include <glib.h>

Data Structures
struct	fragment_s
Typedefs
typedef fragment_s	fragment_t
Functions
void	udp_transceiver_timer (time_t now)
gboolean	udp_transceiver_can_handle_received_fragment (char *buf, int length)
	Wether the udp transceiver might be able to handle this received fragment.
void	udp_transceiver_put_send_fragment (fragment_t *fragment)
	Put fragment in the to send list.
void	udp_transceiver_send_fragment (fragment_t *fragment, gboolean deflate, gboolean acknowledge)
	Send the fragment.
void	udp_transceiver_free_fragment (fragment_t *fragment)
	Free the fragment and all its associated memory.
fragment_t *	udp_transceiver_build_fragment (char *buffer, int length, int sequencenumber, int partnumber, int fragments, gboolean deflate, gboolean acknowledge)
	Build a fragment.
void	udp_transceiver_send (char *buffer, int length, gboolean deflate, gboolean acknowledge, guint32 address, guint16 port)
	Send a fragment to the specified address.
int	udp_transceiver_get_sequencenumber (fragment_t *fragment)
	Get the sequence number from a fragment.
int	udp_transceiver_get_partnumber (fragment_t *fragment)
	Get the part number from a fragment.
int	udp_transceiver_get_fragments (fragment_t *fragment)
	Get the number of fragments from a datagram fragment.
GSList *	udp_transceiver_lookup_fragments_by_sequencenumber_source (fragment_t *fragment)
	Gets previously received fragments from the given source with matching sequencenumber.
void	udp_transceiver_put_received_fragment (fragment_t *fragment)
	Puts a received datagram fragment in a to handle list.
gboolean	udp_transceiver_put_received_datagram (char *buf, int length, guint32 ip, guint16 port)
	Parses a datagram and if it is a fragment it will be handed over to udp_transceiver_put_received_fragment.
gboolean	udp_transceiver_receive (char **buffer, int *length)
	Handle receiving of data.
Variables
int	sequencenumber = 0
int	header_length = 8
int	MTU = 1500
int	transmit_retransmit_interval = 10
	seconds
int	transmit_packet_timeout = 26
	seconds
int	receive_packet_expiry = 30
	seconds
GSList *	receiving_fragments_list
GSList *	received_fragments_list

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Typedef Documentation

typedef struct fragment_s fragment_t

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Function Documentation

fragment_t* udp_transceiver_build_fragment (  char *  buffer, int  length, int  sequencenumber, int  partnumber, int  fragments, gboolean  deflate, gboolean  acknowledge )

Build a fragment.

gboolean udp_transceiver_can_handle_received_fragment (  char *  buf, int  length )

Wether the udp transceiver might be able to handle this received fragment.

void udp_transceiver_free_fragment (  fragment_t *  fragment  )

Free the fragment and all its associated memory.

int udp_transceiver_get_fragments (  fragment_t *  fragment  )  [inline]

Get the number of fragments from a datagram fragment.

int udp_transceiver_get_partnumber (  fragment_t *  fragment  )  [inline]

Get the part number from a fragment.

int udp_transceiver_get_sequencenumber (  fragment_t *  fragment  )  [inline]

Get the sequence number from a fragment.

GSList* udp_transceiver_lookup_fragments_by_sequencenumber_source (  fragment_t *  fragment  )  [static]

Gets previously received fragments from the given source with matching sequencenumber.

gboolean udp_transceiver_put_received_datagram (  char *  buf, int  length, guint32  ip, guint16  port )  [static]

Parses a datagram and if it is a fragment it will be handed over to udp_transceiver_put_received_fragment.

void udp_transceiver_put_received_fragment (  fragment_t *  fragment  )  [static]

Puts a received datagram fragment in a to handle list.

void udp_transceiver_put_send_fragment (  fragment_t *  fragment  )  [static]

Put fragment in the to send list.

gboolean udp_transceiver_receive (  char **  buffer, int *  length )

Handle receiving of data.

void udp_transceiver_send (  char *  buffer, int  length, gboolean  deflate, gboolean  acknowledge, guint32  address, guint16  port )

Send a fragment to the specified address.

void udp_transceiver_send_fragment (  fragment_t *  fragment, gboolean  deflate, gboolean  acknowledge )  [static]

Send the fragment.

void udp_transceiver_timer (  time_t  now  )

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Variable Documentation

int header_length = 8 [static]

int MTU = 1500 [static]

int receive_packet_expiry = 30

seconds

GSList* received_fragments_list

GSList* receiving_fragments_list

int sequencenumber = 0

int transmit_packet_timeout = 26

seconds

int transmit_retransmit_interval = 10

seconds

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