#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sal/driver.h>
#include <opennsl/error.h>
#include <opennsl/vlan.h>
#include <opennsl/switch.h>
#include <opennsl/l2.h>
#include <opennsl/l3.h>
#include <examples/util.h>

Macros
#define	DEFAULT_SUBNET_IP 0x37000000 /* 55.0.0.0 */

#define	DEFAULT_SUBNET_MASK 0xff000000 /* /8 network */

#define	DEFAULT_UNIT 0

#define	EGRESS_VLAN 20

#define	HOST1 0x14010102 /* 20.1.1.2 */

#define	INGRESS_VLAN 10

#define	MY_MAC {0x00, 0x11, 0x22, 0x33, 0x99, 0x58}

#define	NEXTHOP_MAC {0x00, 0x00, 0x70, 0x5B, 0xC7, 0x34}

Functions
int	example_create_l3_egress (int unit, uint32 flags, int out_port, int vlan, int l3_eg_intf, opennsl_mac_t nhop_mac_addr, int intf, int encap_id)
	create l3 egress object object includes next hop information.

int	example_create_l3_intf (int unit, uint32 flags, opennsl_gport_t port, int vlan, int vrf, opennsl_mac_t mac_addr, int ttl, int *intf)
	Creates Router interface.

int	example_host_add (int unit, uint32 addr, int vrf, int intf)
	To add host based route.

int	example_ipv4_route_setup (int unit, int in_port, int out_port)
	To setup host based IPv4 route.

int	example_route_add (int unit, uint32 addr, uint32 mask, int vrf, int intf)
	To add subnet based route.

int	main (int argc, char *argv[])
	Main function for routing sample application.

void	print_host (char *type, opennsl_ip_t host, int vrf)
	To print the host entry.

void	print_route (char *type, uint32 addr, uint32 mask, int vrf)
	To print the route entry.

Variables
char	example_usage []

Macro Definition Documentation

#define DEFAULT_SUBNET_IP 0x37000000 /* 55.0.0.0 */

Definition at line 76 of file example_routing.c.

Referenced by example_ipv4_route_setup().

#define DEFAULT_SUBNET_MASK 0xff000000 /* /8 network */

Definition at line 77 of file example_routing.c.

Referenced by example_ipv4_route_setup().

#define DEFAULT_UNIT 0

Definition at line 68 of file example_routing.c.

Referenced by main().

#define EGRESS_VLAN 20

Definition at line 70 of file example_routing.c.

Referenced by example_ipv4_route_setup().

#define HOST1 0x14010102 /* 20.1.1.2 */

Definition at line 71 of file example_routing.c.

Referenced by example_ipv4_route_setup().

#define INGRESS_VLAN 10

Definition at line 69 of file example_routing.c.

Referenced by example_ipv4_route_setup().

#define MY_MAC {0x00, 0x11, 0x22, 0x33, 0x99, 0x58}

Definition at line 72 of file example_routing.c.

Referenced by example_ipv4_route_setup().

#define NEXTHOP_MAC {0x00, 0x00, 0x70, 0x5B, 0xC7, 0x34}

Definition at line 74 of file example_routing.c.

Referenced by example_ipv4_route_setup().

Function Documentation

int example_create_l3_egress	(	int	unit,
		uint32	flags,
		int	out_port,
		int	vlan,
		int	l3_eg_intf,
		opennsl_mac_t	nhop_mac_addr,
		int *	intf,
		int *	encap_id
	)

create l3 egress object object includes next hop information.

  - packets sent to this interface will be send through out_port over
    given l3_eg_intf with next next_hop_mac_addr VLAN. SA is driven from
    l3_eg_intf as configure in example_create_l3_intf().

Parameters

unit	[IN] Unit number
flags	[IN] special controls set to zero
out_port	[IN] egress port
vlan	[IN] VLAN identifier
l3_eg_intf	[IN] egress router interface will derive (VLAN, SA)
nhop_mac_addr	[IN] next hop mac address
*intf	[OUT] returned interface ID
*encap_id	[OUT] returned encapsulation ID

Returns: OPENNSL_E_xxx OpenNSL API return code

Definition at line 292 of file example_routing.c.

References opennsl_l3_egress_s::encap_id, opennsl_l3_egress_s::flags, opennsl_l3_egress_s::intf, opennsl_l3_egress_s::mac_addr, opennsl_l3_egress_s::module, OPENNSL_E_NONE, opennsl_l3_egress_create(), opennsl_l3_egress_t_init(), opennsl_l3_egress_s::port, and opennsl_l3_egress_s::vlan.

Referenced by example_ipv4_route_setup(), and main().

int example_create_l3_intf	(	int	unit,
		uint32	flags,
		opennsl_gport_t	port,
		int	vlan,
		int	vrf,
		opennsl_mac_t	mac_addr,
		int	ttl,
		int *	intf
	)

Creates Router interface.

  - packets sent in from this interface identified by <port, vlan> with
    specificed MAC address is subject of routing
  - packets sent out through this interface will be encapsulated with
    <vlan, mac_addr>

Parameters

unit	[IN] Unit number.
flags	[IN] Flags
port	[IN] Port number
vlan	[IN] VLAN ID
vrf	[IN] Virtual Router Interface ID
mac_addr	[IN] my MAC address
ttl	[IN] Time To Live field value
intf	[OUT] returned handle of opened l3-interface

Returns: OPENNSL_E_xxx OpenNSL API return code

Definition at line 204 of file example_routing.c.

References opennsl_l2_station_s::dst_mac, opennsl_l2_station_s::dst_mac_mask, opennsl_l3_ingress_s::flags, opennsl_l2_station_s::flags, opennsl_l3_intf_s::l3a_flags, opennsl_l3_intf_s::l3a_intf_id, opennsl_l3_intf_s::l3a_mac_addr, opennsl_l3_intf_s::l3a_mtu, opennsl_l3_intf_s::l3a_ttl, opennsl_l3_intf_s::l3a_vid, OPENNSL_E_EXISTS, OPENNSL_E_NONE, opennsl_l2_station_add(), opennsl_l2_station_t_init(), opennsl_l3_ingress_create(), OPENNSL_L3_INGRESS_GLOBAL_ROUTE, opennsl_l3_ingress_t_init(), OPENNSL_L3_INGRESS_WITH_ID, opennsl_l3_intf_create(), opennsl_l3_intf_t_init(), opennsl_vlan_create(), opennsl_vlan_gport_add(), opennsl_l2_station_s::vlan_mask, and opennsl_l3_ingress_s::vrf.

Referenced by example_ipv4_route_setup(), and main().

int example_host_add	(	int	unit,
		uint32	addr,
		int	vrf,
		int	intf
	)

To add host based route.

Parameters

unit	[IN] Unit number.
addr	[IN] IPV4 host address
vrf	[IN] VRF ID
intf	[IN] egress interface

Returns: OPENNSL_E_xxx OpenNSL API return code

Definition at line 125 of file example_routing.c.

References opennsl_l3_host_s::l3a_flags, opennsl_l3_host_s::l3a_intf, opennsl_l3_host_s::l3a_ip_addr, opennsl_l3_host_s::l3a_port_tgid, opennsl_l3_host_s::l3a_vrf, OPENNSL_E_NONE, opennsl_l3_host_add(), and opennsl_l3_host_t_init().

Referenced by example_ipv4_route_setup().

int example_ipv4_route_setup	(	int	unit,
		int	in_port,
		int	out_port
	)

To setup host based IPv4 route.

Parameters

unit	[IN] Unit number.
in_port	[IN] Incoming Port number
out_port	[IN] Outgoing Port number

Returns: OPENNSL_E_xxx OpenNSL API return code

Definition at line 332 of file example_routing.c.

References DEFAULT_SUBNET_IP, DEFAULT_SUBNET_MASK, EGRESS_VLAN, example_create_l3_egress(), example_create_l3_intf(), example_host_add(), example_route_add(), HOST1, INGRESS_VLAN, MY_MAC, NEXTHOP_MAC, OPENNSL_E_NONE, and print_host().

Referenced by main().

int example_route_add	(	int	unit,
		uint32	addr,
		uint32	mask,
		int	vrf,
		int	intf
	)

To add subnet based route.

Parameters

unit	[IN] Unit number.
addr	[IN] IPV4 host address
mask	[IN] IPV4 mask. 1: to consider 0: to ingore, for example for /24 mask = 0xffffff00
vrf	[IN] VRF ID
intf	[IN] egress interface

Returns: OPENNSL_E_xxx OpenNSL API return code

Definition at line 160 of file example_routing.c.

References opennsl_l3_route_s::l3a_flags, opennsl_l3_route_s::l3a_intf, opennsl_l3_route_s::l3a_ip_mask, opennsl_l3_route_s::l3a_port_tgid, opennsl_l3_route_s::l3a_subnet, opennsl_l3_route_s::l3a_vrf, OPENNSL_E_NONE, opennsl_l3_route_add(), opennsl_l3_route_t_init(), and print_route().

Referenced by example_ipv4_route_setup().

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

Main function for routing sample application.

Parameters

argc,argv commands line arguments

Returns: OPENNSL_E_XXX OpenNSL API return code

Definition at line 404 of file example_routing.c.

References DEFAULT_UNIT, example_ipv4_route_setup(), example_port_default_config(), example_read_user_choice(), example_usage, NULL, opennsl_driver_exit(), opennsl_driver_init(), OPENNSL_E_NONE, OPENNSL_E_PARAM, and opennsl_errmsg.

void print_host	(	char *	type,
		opennsl_ip_t	host,
		int	vrf
	)

To print the host entry.

Parameters

type	[IN] string header
host	[IN] IPV4 host address
vrf	[IN] VRF ID

Returns: OPENNSL_E_xxx OpenNSL API return code

Definition at line 88 of file example_routing.c.

References print_ip_addr().

Referenced by example_ipv4_route_setup().

void print_route	(	char *	type,
		uint32	addr,
		uint32	mask,
		int	vrf
	)

To print the route entry.

Parameters

type	[IN] string header
addr	[IN] IPV4 host address
mask	[IN] IPV4 mask
vrf	[IN] VRF ID

Returns: OPENNSL_E_xxx OpenNSL API return code

Definition at line 105 of file example_routing.c.

References print_ip_addr().

Referenced by example_route_add().

Variable Documentation

char example_usage[]

Initial value:

=
"Syntax: example_routing                                                \n\r"
"                                                                       \n\r"
"Paramaters:                                                            \n\r"
"       in_sysport  - Ingress port number on which test packet is       \n\r"
"                     received                                          \n\r"
"       out_sysport - Egress port number to which packet is routed.     \n\r"
"                                                                       \n\r"
"Example: The following command is used to demonstrate routing from     \n\r"
"         port 2 to port 6.                                             \n\r"
"         example_routing 2 6                                           \n\r"
"                                                                       \n\r"
"Usage Guidelines: This program request the user to enter the           \n\r"
"       ingress and egress port numbers. Using the host route, it routes\n\r"
"       the packets arrived on ingress port with VLAN = 10,             \n\r"
"       destination MAC = 00:11:22:33:99:58 to host 20.1.1.2 attached   \n\r"
"       to egress port that is a member of VLAN 20. Using the default   \n\r"
"       route, it also routes packets with VLAN = 10, destination       \n\r"
"       MAC = 00:11:22:33:99:58 destinated to subnet 55.0.0.0 to egress \n\r"
"       port that is a member of VLAN 20.                               \n\r"
"       The routed packet should have destination MAC same as           \n\r"
"       00:00:70:5B:C7:34 with TTL decremented by 1.                    \n\r"

Definition at line 44 of file example_routing.c.

Macros

Functions

Variables

Macro Definition Documentation

Function Documentation

Variable Documentation