IP_Routing.c File Reference

#include "main.h"
#include "List.h"
#include "IP.h"
#include "NetSim_utility.h"
#include "Protocol.h"
#include "../Firewall/Firewall.h"

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Data Structures
struct	stru_match

Macros
#define	MATCH_ALLOC()   (ptrMATCH)list_alloc(sizeof(MATCH),offsetof(MATCH,ele))
#define	display_error(error, line, file)   fnNetSimError("Invalid line in route file %s at line %d: %s", file, line, error)

Typedefs
typedef struct stru_match	MATCH
typedef struct stru_match *	ptrMATCH

Functions
static void	print_match_table (ptrMATCH match, NETSIM_ID d, NETSIM_IPAddress dest, NETSIM_IPAddress src)
static void	free_match_table (ptrMATCH l)
static int	match_check (ptrMATCH m1, ptrMATCH m2)
static void	add_to_match_list (ptrMATCH *l, ptrMATCH c)
static UINT	get_bit_match_count (NETSIM_IPAddress ip1)
static ptrMATCH	get_match_table (ptrIP_ROUTINGTABLE table, NETSIM_IPAddress dest, bool isStatic)
void	free_ip_route (ptrIP_FORWARD_ROUTE route)
static void	update_route_entry (ptrMATCH match, ptrIP_FORWARD_ROUTE route, NETSIM_IPAddress dest)
static ptrMATCH	choose_match_for_reserved_address (ptrMATCH match, NETSIM_IPAddress dest, NETSIM_IPAddress src)
static void	multicast_update_route_entry (ptrMATCH match, ptrIP_FORWARD_ROUTE route, NETSIM_IPAddress dest, NETSIM_IPAddress src)
static void	route_onlink (NETSIM_ID d, NETSIM_IPAddress src, NETSIM_IPAddress dest, ptrIP_FORWARD_ROUTE route)
static bool	check_my_ip (NETSIM_ID d, NETSIM_IPAddress ip)
static ptrIP_FORWARD_ROUTE	route_unicast (NetSim_PACKET *packet, NETSIM_ID dev)
static ptrIP_FORWARD_ROUTE	route_multicast (NetSim_PACKET *packet, NETSIM_ID dev)
ptrIP_FORWARD_ROUTE	fn_NetSim_IP_RoutePacket (NetSim_PACKET *packet, NETSIM_ID dev)
static void	change_table (NETSIM_ID d, ptrIP_ROUTINGTABLE table, NETSIM_IPAddress gateway, NETSIM_ID in, UINT metric)
static void	add_table (NETSIM_ID d, NETSIM_IPAddress dest, NETSIM_IPAddress mask, NETSIM_IPAddress gateway, NETSIM_ID in, UINT metric)
void	configure_static_ip_route (NETSIM_ID d, char *file)
static ptrIP_FORWARD_ROUTE	static_route_unicast (NetSim_PACKET *packet, NETSIM_ID dev)
static ptrIP_FORWARD_ROUTE	static_route_multicast (NetSim_PACKET *packet, NETSIM_ID dev)
ptrIP_FORWARD_ROUTE	fn_NetSim_IP_RoutePacketViaStaticEntry (NetSim_PACKET *packet, NETSIM_ID dev)
void	pass_to_lower_layer (NetSim_PACKET *packet, ptrIP_FORWARD_ROUTE route, UINT c)

Macro Definition Documentation

display_error

#define display_error	(		error,
			line,
			file
	)		fnNetSimError("Invalid line in route file %s at line %d: %s", file, line, error)

Definition at line 418 of file IP_Routing.c.

MATCH_ALLOC

#define MATCH_ALLOC

(

)

(ptrMATCH)list_alloc(sizeof(MATCH),offsetof(MATCH,ele))

Definition at line 39 of file IP_Routing.c.

Typedef Documentation

MATCH

typedef struct stru_match MATCH

This function is used to route the packet

ptrMATCH

typedef struct stru_match * ptrMATCH

Function Documentation

add_table()

static void add_table ( NETSIM_ID  d, NETSIM_IPAddress  dest, NETSIM_IPAddress  mask, NETSIM_IPAddress  gateway, NETSIM_ID  in, UINT  metric  )

static

Definition at line 412 of file IP_Routing.c.

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add_to_match_list()

static void add_to_match_list ( ptrMATCH *  l, ptrMATCH  c  )

static

Definition at line 90 of file IP_Routing.c.

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change_table()

static void change_table ( NETSIM_ID  d, ptrIP_ROUTINGTABLE  table, NETSIM_IPAddress  gateway, NETSIM_ID  in, UINT  metric  )

static

Definition at line 382 of file IP_Routing.c.

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check_my_ip()

static bool check_my_ip ( NETSIM_ID  d, NETSIM_IPAddress  ip  )

static

Definition at line 309 of file IP_Routing.c.

choose_match_for_reserved_address()

static ptrMATCH choose_match_for_reserved_address ( ptrMATCH  match, NETSIM_IPAddress  dest, NETSIM_IPAddress  src  )

static

Definition at line 204 of file IP_Routing.c.

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configure_static_ip_route()

void configure_static_ip_route	(	NETSIM_ID	d,
		char *	file
	)

This function is to configure static ip table

Definition at line 420 of file IP_Routing.c.

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fn_NetSim_IP_RoutePacket()

ptrIP_FORWARD_ROUTE fn_NetSim_IP_RoutePacket	(	NetSim_PACKET *	packet,
		NETSIM_ID	dev
	)

Definition at line 371 of file IP_Routing.c.

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fn_NetSim_IP_RoutePacketViaStaticEntry()

ptrIP_FORWARD_ROUTE fn_NetSim_IP_RoutePacketViaStaticEntry	(	NetSim_PACKET *	packet,
		NETSIM_ID	dev
	)

Definition at line 558 of file IP_Routing.c.

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free_ip_route()

void free_ip_route

(

ptrIP_FORWARD_ROUTE

route

)

Definition at line 157 of file IP_Routing.c.

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free_match_table()

static void free_match_table ( ptrMATCH  l )

static

Definition at line 72 of file IP_Routing.c.

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get_bit_match_count()

static UINT get_bit_match_count ( NETSIM_IPAddress  ip1 )

static

Definition at line 95 of file IP_Routing.c.

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get_match_table()

static ptrMATCH get_match_table ( ptrIP_ROUTINGTABLE  table, NETSIM_IPAddress  dest, bool  isStatic  )

static

Definition at line 111 of file IP_Routing.c.

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match_check()

static int match_check ( ptrMATCH  m1, ptrMATCH  m2  )

static

Definition at line 78 of file IP_Routing.c.

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multicast_update_route_entry()

static void multicast_update_route_entry ( ptrMATCH  match, ptrIP_FORWARD_ROUTE  route, NETSIM_IPAddress  dest, NETSIM_IPAddress  src  )

static

Definition at line 221 of file IP_Routing.c.

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pass_to_lower_layer()

void pass_to_lower_layer	(	NetSim_PACKET *	packet,
		ptrIP_FORWARD_ROUTE	route,
		UINT	c
	)

Definition at line 568 of file IP_Routing.c.

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print_match_table()

static void print_match_table ( ptrMATCH  match, NETSIM_ID  d, NETSIM_IPAddress  dest, NETSIM_IPAddress  src  )

static

Definition at line 41 of file IP_Routing.c.

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route_multicast()

static ptrIP_FORWARD_ROUTE route_multicast ( NetSim_PACKET *  packet, NETSIM_ID  dev  )

static

Definition at line 343 of file IP_Routing.c.

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route_onlink()

static void route_onlink ( NETSIM_ID  d, NETSIM_IPAddress  src, NETSIM_IPAddress  dest, ptrIP_FORWARD_ROUTE  route  )

static

Definition at line 271 of file IP_Routing.c.

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route_unicast()

static ptrIP_FORWARD_ROUTE route_unicast ( NetSim_PACKET *  packet, NETSIM_ID  dev  )

static

Definition at line 318 of file IP_Routing.c.

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static_route_multicast()

static ptrIP_FORWARD_ROUTE static_route_multicast ( NetSim_PACKET *  packet, NETSIM_ID  dev  )

static

Definition at line 530 of file IP_Routing.c.

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static_route_unicast()

static ptrIP_FORWARD_ROUTE static_route_unicast ( NetSim_PACKET *  packet, NETSIM_ID  dev  )

static

Definition at line 505 of file IP_Routing.c.

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update_route_entry()

static void update_route_entry ( ptrMATCH  match, ptrIP_FORWARD_ROUTE  route, NETSIM_IPAddress  dest  )

static

Definition at line 167 of file IP_Routing.c.

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