example_l2_firewall.c File Reference

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sal/driver.h>
#include <opennsl/error.h>
#include <opennsl/l2.h>
#include <opennsl/switch.h>
#include <opennsl/vlan.h>
#include <examples/util.h>

Go to the source code of this file.

Macros
#define	DEFAULT_UNIT   0
#define	DEFAULT_VLAN   1
#define	MAX_DIGITS_IN_CHOICE   5

Functions
int	_opennsl_l2_traverse_cb (int unit, opennsl_l2_addr_t *info, void *user_data)
	Callback function to show L2 table information.
int	example_l2_firewall_allow_station (int unit, opennsl_mac_t mac, opennsl_vlan_t vlan)
	Unblock the given station MAC address in the given VLAN.
int	example_l2_firewall_block_station (int unit, opennsl_mac_t mac, opennsl_vlan_t vlan)
	Block the given station MAC address in the given VLAN.
int	main (int argc, char *argv[])
	Main function for Layer2 firewall application.

Variables
char	example_usage []
int	max_l2_count = 0

Macro Definition Documentation

#define DEFAULT_UNIT   0

Definition at line 52 of file example_l2_firewall.c.

Referenced by main().

#define DEFAULT_VLAN   1

Definition at line 53 of file example_l2_firewall.c.

#define MAX_DIGITS_IN_CHOICE   5

Definition at line 54 of file example_l2_firewall.c.

Function Documentation

int _opennsl_l2_traverse_cb	(	int	unit,
		opennsl_l2_addr_t *	info,
		void *	user_data
	)

Callback function to show L2 table information.

Parameters

unit	[IN] unit number
info	[IN] L2 address structure
*user_data	[IN] User specified cookie

Returns

OPENNSL_E_NONE

Definition at line 131 of file example_l2_firewall.c.

References opennsl_l2_addr_s::mac, max_l2_count, OPENNSL_E_NONE, opennsl_l2_addr_s::port, and opennsl_l2_addr_s::vid.

Referenced by main().

int example_l2_firewall_allow_station	(	int	unit,
		opennsl_mac_t	mac,
		opennsl_vlan_t	vlan
	)

Unblock the given station MAC address in the given VLAN.

Parameters

unit	[IN] Unit number
mac	[IN] 802.3 MAC address
vlan	[IN] VLAN ID

Returns

OPENNSL_E_XXX OpenNSL API return code

Definition at line 105 of file example_l2_firewall.c.

References OPENNSL_E_NONE, opennsl_l2_addr_delete(), and opennsl_l2_addr_get().

Referenced by main().

int example_l2_firewall_block_station	(	int	unit,
		opennsl_mac_t	mac,
		opennsl_vlan_t	vlan
	)

Block the given station MAC address in the given VLAN.

Parameters

unit	[IN] Unit number
mac	[IN] 802.3 MAC address
vlan	[IN] VLAN ID

Returns

OPENNSL_E_XXX OpenNSL API return code

Definition at line 78 of file example_l2_firewall.c.

References opennsl_l2_addr_s::flags, opennsl_l2_addr_add(), opennsl_l2_addr_t_init(), OPENNSL_L2_DISCARD_DST, OPENNSL_L2_DISCARD_SRC, and OPENNSL_L2_STATIC.

Referenced by main().

int main	(	int	argc,
		char *	argv[]
	)

Main function for Layer2 firewall application.

Parameters

argc,argv

commands line arguments

Returns

OPENNSL_E_XXX OpenNSL API return code

Definition at line 149 of file example_l2_firewall.c.

References _opennsl_l2_traverse_cb(), DEFAULT_UNIT, example_l2_firewall_allow_station(), example_l2_firewall_block_station(), example_port_default_config(), example_read_user_choice(), example_switch_default_vlan_config(), example_usage, max_l2_count, NULL, OPENNSL_BOOT_F_WARM_BOOT, opennsl_driver_boot_flags_get(), opennsl_driver_exit(), opennsl_driver_init(), OPENNSL_E_NONE, OPENNSL_E_NOT_FOUND, OPENNSL_E_PARAM, opennsl_errmsg, opennsl_l2_age_timer_get(), opennsl_l2_age_timer_set(), opennsl_l2_traverse(), opennsl_switch_control_set(), and opennslSwitchControlSync.

Variable Documentation

char example_usage[]

Initial value:

=
"Syntax: example_l2_firewall                                           \n\r"
"                                                                      \n\r"
"Paramaters: None.                                                     \n\r"
"                                                                      \n\r"
"Example: The following command is used to allow or block station A    \n\r"
"and station D that are part of VLAN 1 with MAC addresses              \n\r"
"00:00:00:00:00:01 and 00:00:00:00:00:04 respectively.                 \n\r"
"         example_l2_firewall                                          \n\r"
"                                                                      \n\r"
"Usage Guidelines: None.                                               \n\r"

Definition at line 57 of file example_l2_firewall.c.

int max_l2_count = 0

Definition at line 56 of file example_l2_firewall.c.

Referenced by _opennsl_l2_traverse_cb(), and main().