shell.c File Reference

Manages the TCP connection, also initializes the Command Shell service upon startup. More...

#include <sys/svcs.h>
#include <sys/time.h>
#include <sys/socket.h>
#include <notifychange.h>
#include <string.h>
#include <stdio.h>
#include <unistd.h>
#include <netinet/inet.h>
#include <iwconfig.h>
#include <raven.h>
#include "ieee802154.h"
#include "uart.h"
#include "cmd.h"
#include "server.h"
#include "shell.h"

Include dependency graph for shell.c:

Defines
#define	TELNET_PORT   23
	Standard TCP Telnet Service Port.
#define	BUFSIZE   512
	User defined TCP transmission queue buffer size.
#define	CMDLINESIZE   256
	User defined command line size.
Enumerations
enum	{ TELNET_WILL = 251, TELNET_IAC = 255 }
enum	{ IAC = 1, WILL = 2 }
enum	tcp_state_enum { TCPOPEN, TCPCONN, TCPCLOSE }
	Enumeration of TCP states. More...
Functions
void	__main (event_t event, void *cbargs, void *context)
void	tcp_handler (event_t event, void *cbargs, void *context)
void	err_handler (event_t event, void *cbargs, void *context)
	Notification that send may be possible again.
void	iwconfig_handler (event_t event, void *cbargs, void *context)
void	timer_handler (event_t event, void *cbargs, void *context)
void	tcp_telnet_handler (event_t event, void *cbargs, void *context)
	Implements the TCP state machine to for TCP connection.
void	telnet_init ()
	initializes the TCP socket
Variables
static int16_t	g_sockfd
	Socket ID.
static sockaddr_in6_t	g_localaddr
	Local Socket Address.
static tcp_event_t	g_app_tcp_event
	TCP event descriptor.
static uint8_t	g_tcpbuf [BUFSIZE]
static uint8_t	g_cmdline_index
	Current index into the command line buffer.
static char	g_cmdline [CMDLINESIZE]
	Command line buffer.
enum tcp_state_enum	tcp_state
	Global variable to keep track of the current TCP state machine.

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Detailed Description

Manages the TCP connection, also initializes the Command Shell service upon startup.

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Define Documentation

#define BUFSIZE   512

User defined TCP transmission queue buffer size.

#define CMDLINESIZE   256

User defined command line size.

#define TELNET_PORT   23

Standard TCP Telnet Service Port.

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Enumeration Type Documentation

anonymous enum

Enumerator:

TELNET_WILL
TELNET_IAC

anonymous enum

Enumerator:

IAC
WILL

enum tcp_state_enum

Enumeration of TCP states.

Enumerator:

TCPOPEN
TCPCONN
TCPCLOSE

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Function Documentation

void __main	(	event_t	event,
		void *	cbargs,
		void *	context
	)

void err_handler	(	event_t	event,
		void *	cbargs,
		void *	context
	)

Notification that send may be possible again.

err_handler

Parameters:

	event	equals to NOTIFYWRITE as this is a notifywrite() callback
	cbargs	passes resource back from notifywrite() call
	context	passes context back from notifywrite() call

Returns:

none

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void iwconfig_handler	(	event_t	event,
		void *	cbargs,
		void *	context
	)

void tcp_handler	(	event_t	event,
		void *	cbargs,
		void *	context
	)

void tcp_telnet_handler	(	event_t	event,
		void *	cbargs,
		void *	context
	)

Implements the TCP state machine to for TCP connection.

tcp_telnet_handler

Accumulates the cmd line into cmd buffer; processes telnet escape charaters

Parameters:

	event	equals to TCPBIND as this is a tcpbind() callback
	cbargs	passes tcp_event back from tcpbind() call
	context	passes context back from tcpbind() call

Returns:

none

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void telnet_init

(

)

initializes the TCP socket

TCPecho_init

Parameters:

none

Returns:

none

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void timer_handler	(	event_t	event,
		void *	cbargs,
		void *	context
	)

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Variable Documentation

tcp_event_t g_app_tcp_event [static]

TCP event descriptor.

char g_cmdline[CMDLINESIZE] [static]

Command line buffer.

uint8_t g_cmdline_index [static]

Current index into the command line buffer.

sockaddr_in6_t g_localaddr [static]

Local Socket Address.

int16_t g_sockfd [static]

Socket ID.

uint8_t g_tcpbuf[BUFSIZE] [static]

Pass this buffer for the stack to use as TCP transmission queue buffer for the socket.

enum tcp_state_enum tcp_state

Global variable to keep track of the current TCP state machine.