firewall.c File Reference

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

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Data Structures
struct	stru_IP_ACL

Macros
#define	_NETSIM_FIREWALL_CODE_
#define	ACL_ALLOC()   (ptrACL)list_alloc(sizeof(NETSIM_ACL),offsetof(NETSIM_ACL,ele))
#define	ACL_NEXT(acl)   acl=(ptrACL)LIST_NEXT(acl)
#define	ACL_ADD(lacl, acl)   LIST_ADD_LAST((void**)lacl,acl)
#define	ACL_GET(d)   ((ptrACL)(GET_IP_DEVVAR(d)->ACL))
#define	ACL_SET(d, acl)   (GET_IP_DEVVAR(d)->ACL = (void*)acl)

Typedefs
typedef struct stru_IP_ACL	NETSIM_ACL
typedef struct stru_IP_ACL *	ptrACL

Functions
static ACL_ACTION	action_from_str (char *s)
static NETSIM_IPAddress	num_to_subnet (int num)
static int	perfix_from_mask (NETSIM_IPAddress mask)
static void	ip_from_str (char *s, NETSIM_IPAddress *ip, NETSIM_IPAddress *subnet)
static IP_PROTOCOL_NUMBER	ipprotocol_from_str (char *pro)
static char *	str_from_proto (IP_PROTOCOL_NUMBER num)
static ACL_TYPE	type_from_str (char *str)
static bool	check_mac_block (NETSIM_ID d, NETSIM_ID in)
void	acl_add_new_line (NETSIM_ID d, char *s)
static NETSIM_IPAddress	get_dest_ip (NetSim_PACKET *packet)
int	fn_NetSim_FirewallConfig (NETSIM_ID nDeviceId)
static ACL_ACTION	fn_NetSim_Firewall (NETSIM_ID nDeviceId, NETSIM_ID interfaceId, NetSim_PACKET *packet, ACL_TYPE type, bool isMAC)
ACL_ACTION	fn_NetSim_MAC_Firewall (NETSIM_ID nDeviceId, NETSIM_ID interfaceId, NetSim_PACKET *packet, ACL_TYPE type)
ACL_ACTION	fn_NetSim_NETWORK_Firewall (NETSIM_ID nDeviceId, NETSIM_ID interfaceId, NetSim_PACKET *packet, ACL_TYPE type)
void	fn_NetSim_Firewall_Free (NETSIM_ID d)
char *	acl_print (NETSIM_ID d)

Macro Definition Documentation

_NETSIM_FIREWALL_CODE_

#define _NETSIM_FIREWALL_CODE_

Definition at line 15 of file firewall.c.

ACL_ADD

#define ACL_ADD	(		lacl,
			acl
	)		LIST_ADD_LAST((void**)lacl,acl)

Definition at line 42 of file firewall.c.

ACL_ALLOC

#define ACL_ALLOC

(

)

(ptrACL)list_alloc(sizeof(NETSIM_ACL),offsetof(NETSIM_ACL,ele))

Definition at line 40 of file firewall.c.

ACL_GET

#define ACL_GET

(

d

)

((ptrACL)(GET_IP_DEVVAR(d)->ACL))

Definition at line 43 of file firewall.c.

ACL_NEXT

#define ACL_NEXT

(

acl

)

acl=(ptrACL)LIST_NEXT(acl)

Definition at line 41 of file firewall.c.

ACL_SET

#define ACL_SET	(		d,
			acl
	)		(GET_IP_DEVVAR(d)->ACL = (void*)acl)

Definition at line 44 of file firewall.c.

Typedef Documentation

NETSIM_ACL

typedef struct stru_IP_ACL NETSIM_ACL

ptrACL

typedef struct stru_IP_ACL* ptrACL

Function Documentation

acl_add_new_line()

void acl_add_new_line	(	NETSIM_ID	d,
		char *	s
	)

Definition at line 185 of file firewall.c.

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acl_print()

char * acl_print

(

NETSIM_ID

d

)

Definition at line 346 of file firewall.c.

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action_from_str()

static ACL_ACTION action_from_str ( char *  s )

static

Definition at line 46 of file firewall.c.

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check_mac_block()

static bool check_mac_block ( NETSIM_ID  d, NETSIM_ID  in  )

static

Definition at line 171 of file firewall.c.

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fn_NetSim_Firewall()

static ACL_ACTION fn_NetSim_Firewall ( NETSIM_ID  nDeviceId, NETSIM_ID  interfaceId, NetSim_PACKET *  packet, ACL_TYPE  type, bool  isMAC  )

static

This function is to check whether the particular packet is blocked or allowed by firewall

Definition at line 267 of file firewall.c.

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fn_NetSim_Firewall_Free()

void fn_NetSim_Firewall_Free

(

NETSIM_ID

d

)

Definition at line 338 of file firewall.c.

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fn_NetSim_FirewallConfig()

int fn_NetSim_FirewallConfig

(

NETSIM_ID

nDeviceId

)

This function is to configure the firewall.

Definition at line 235 of file firewall.c.

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fn_NetSim_MAC_Firewall()

ACL_ACTION fn_NetSim_MAC_Firewall	(	NETSIM_ID	nDeviceId,
		NETSIM_ID	interfaceId,
		NetSim_PACKET *	packet,
		ACL_TYPE	type
	)

Definition at line 328 of file firewall.c.

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fn_NetSim_NETWORK_Firewall()

ACL_ACTION fn_NetSim_NETWORK_Firewall	(	NETSIM_ID	nDeviceId,
		NETSIM_ID	interfaceId,
		NetSim_PACKET *	packet,
		ACL_TYPE	type
	)

Definition at line 333 of file firewall.c.

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get_dest_ip()

static NETSIM_IPAddress get_dest_ip ( NetSim_PACKET *  packet )

static

Definition at line 217 of file firewall.c.

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ip_from_str()

static void ip_from_str ( char *  s, NETSIM_IPAddress *  ip, NETSIM_IPAddress *  subnet  )

static

Definition at line 103 of file firewall.c.

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ipprotocol_from_str()

static IP_PROTOCOL_NUMBER ipprotocol_from_str ( char *  pro )

static

Definition at line 129 of file firewall.c.

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num_to_subnet()

static NETSIM_IPAddress num_to_subnet ( int  num )

static

Definition at line 57 of file firewall.c.

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perfix_from_mask()

static int perfix_from_mask ( NETSIM_IPAddress  mask )

static

Definition at line 95 of file firewall.c.

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str_from_proto()

static char * str_from_proto ( IP_PROTOCOL_NUMBER  num )

static

Definition at line 148 of file firewall.c.

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type_from_str()

static ACL_TYPE type_from_str ( char *  str )

static

Definition at line 161 of file firewall.c.

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