#include <net/if.h>
#include <cne_atomic.h>
#include <pktdev.h>
#include <cne_inet.h>
#include <stddef.h>
#include <stdint.h>
#include "cne_common.h"
#include "cne_log.h"
#include "cne_lport.h"
#include "cne_vec.h"
#include "cnet_const.h"
#include "cnet_stk.h"
#include "mempool.h"
#include "pktmbuf.h"

Macros
#define	_IFF_UP 0x00000001

#define	_IFF_BROADCAST 0x00000002

#define	_IFF_DEBUG 0x00000004

#define	_IFF_LOOPBACK 0x00000008

#define	_IFF_POINTOPOINT 0x00000010

#define	_IFF_SMART 0x00000020

#define	_IFF_RUNNING 0x00000040

#define	_IFF_NOARP 0x00000080

#define	_IFF_PROMISC 0x00000100

#define	_IFF_ALLMULTI 0x00000200

#define	_IFF_OACTIVE 0x00000400

#define	_IFF_SIMPLEX 0x00000800

#define	_IFF_LINK0 0x00001000

#define	_IFF_LINK1 0x00002000

#define	_IFF_LINK2 0x00004000

#define	_IFF_MULTICAST 0x00008000

#define	_IFF_NOTRAILERS 0x00020000

#define	_IFF_INET_UP 0x00040000

#define	_IFF_INET6_UP 0x00080000

#define	_IFF_RARP 0x00100000

#define	_IFF_DONT_FORWARD 0x00200000

Functions
static int	cnet_ipv4_broadcast (struct netif netif, struct in_addr ip)

static struct netif *	cnet_netif_from_index (uint8_t idx)

static struct netif *	cnet_netif_match_subnet (struct in_addr *ipaddr)

static void	cnet_netif_free (struct netif *netif)

static struct netif *	cnet_netif_alloc (uint16_t lpid)

static int	cnet_netif_get_flags (struct netif netif, uint32_t flags)

CNDP_API int	cnet_netif_register (uint16_t lpid, char ifname, char netdev)
	Register lport, ifname and netdev to create a netif structure. More...

CNDP_API int	cnet_netif_attach_ports (struct cnet *cnet)
	Attach ports to CNET and the netif structures. More...

CNDP_API struct netif *	cnet_netif_from_name (const char *name, int typ)
	Locate the netif for the given interface name. More...

CNDP_API int	cnet_netif_set_mtu (struct netif *netif, uint16_t mtu)
	Set the MTU for a given netif structure. More...

CNDP_API int	cnet_netif_foreach (int(func)(struct netif netif, void arg), void arg)
	look over all netif structures calling the specified function More...

CNDP_API struct inet4_addr *	cnet_ipv4_ipaddr_find (struct netif netif, struct in_addr ip)
	Find the given IPv4 address in a given netif structure. More...

CNDP_API int	cnet_ipv4_ipaddr_delete (struct netif netif, struct in_addr ip)
	Delete the given IPv4 address from the given netif structure. More...

CNDP_API int	cnet_ipv4_ipaddr_add (struct netif netif, struct inet4_addr ip)
	Add a new IPv4 address to the given netif structure. More...

CNDP_API int	cnet_netif_set_flags (struct netif *netif, uint32_t flags)
	Add flags or set the flags to a netif structure. More...

CNDP_API struct netif *	cnet_netif_find_by_name (char *ifname)
	Find the netif structure for the given interface name. More...

CNDP_API struct netif *	cnet_netif_find_by_ifindex (int ifindex)
	Locate the netif structure by the ifindex value. More...

CNDP_API struct netif *	cnet_netif_find_by_netdev (char *netdev_name)
	Find the netif structure by the netdev name. More...

CNDP_API struct netif *	cnet_netif_find_by_lport (int lport)
	Find the netif structure by the lport id. More...

CNDP_API int	cnet_is_ifname_valid (char *ifname)
	Is the ifname a valid interface name. More...

CNDP_API int	cnet_is_netdev_valid (char *netdev_name)
	Is the netdev name a valid netdev. More...

CNDP_API int	cnet_is_ifindex_valid (int ifindex)
	Is the ifindex valid interface index. More...

Detailed Description

CNET Network Interface routines and constants.

Definition in file cnet_netif.h.

Macro Definition Documentation

◆ _IFF_UP

#define _IFF_UP 0x00000001

interface link is up

Definition at line 91 of file cnet_netif.h.

◆ _IFF_BROADCAST

#define _IFF_BROADCAST 0x00000002

broadcast address valid

Definition at line 92 of file cnet_netif.h.

◆ _IFF_DEBUG

#define _IFF_DEBUG 0x00000004

turn on debugging

Definition at line 93 of file cnet_netif.h.

◆ _IFF_LOOPBACK

#define _IFF_LOOPBACK 0x00000008

is a loopback net

Definition at line 94 of file cnet_netif.h.

◆ _IFF_POINTOPOINT

#define _IFF_POINTOPOINT 0x00000010

interface is p2p link

Definition at line 95 of file cnet_netif.h.

◆ _IFF_SMART

#define _IFF_SMART 0x00000020

interface manages own routes

Definition at line 96 of file cnet_netif.h.

◆ _IFF_RUNNING

#define _IFF_RUNNING 0x00000040

resources allocated

Definition at line 97 of file cnet_netif.h.

◆ _IFF_NOARP

#define _IFF_NOARP 0x00000080

no address resolution protocol

Definition at line 98 of file cnet_netif.h.

◆ _IFF_PROMISC

#define _IFF_PROMISC 0x00000100

receive all packets

Definition at line 99 of file cnet_netif.h.

◆ _IFF_ALLMULTI

#define _IFF_ALLMULTI 0x00000200

receive all multicast packets

Definition at line 100 of file cnet_netif.h.

◆ _IFF_OACTIVE

#define _IFF_OACTIVE 0x00000400

transmission in progress

Definition at line 101 of file cnet_netif.h.

◆ _IFF_SIMPLEX

#define _IFF_SIMPLEX 0x00000800

can't hear own transmissions

Definition at line 102 of file cnet_netif.h.

◆ _IFF_LINK0

#define _IFF_LINK0 0x00001000

forwarding disabled

Definition at line 103 of file cnet_netif.h.

◆ _IFF_LINK1

#define _IFF_LINK1 0x00002000

per link layer defined bit

Definition at line 104 of file cnet_netif.h.

◆ _IFF_LINK2

#define _IFF_LINK2 0x00004000

per link layer defined bit

Definition at line 105 of file cnet_netif.h.

◆ _IFF_MULTICAST

#define _IFF_MULTICAST 0x00008000

supports multicast

Definition at line 106 of file cnet_netif.h.

◆ _IFF_NOTRAILERS

#define _IFF_NOTRAILERS 0x00020000

avoid use of trailers

Definition at line 107 of file cnet_netif.h.

◆ _IFF_INET_UP

#define _IFF_INET_UP 0x00040000

interface is up for ipv4

Definition at line 108 of file cnet_netif.h.

◆ _IFF_INET6_UP

#define _IFF_INET6_UP 0x00080000

interface is up for ipv6

Definition at line 109 of file cnet_netif.h.

◆ _IFF_RARP

#define _IFF_RARP 0x00100000

RARP enabled on this interface

Definition at line 110 of file cnet_netif.h.

◆ _IFF_DONT_FORWARD

#define _IFF_DONT_FORWARD 0x00200000

Not allowed to forward packets

Definition at line 111 of file cnet_netif.h.

Function Documentation

◆ cnet_ipv4_broadcast()

static int cnet_ipv4_broadcast	(	struct netif *	netif,
		struct in_addr *	ip
	)

inlinestatic

Check if an IP address matches one of the netif subnets.

Definition at line 125 of file cnet_netif.h.

◆ cnet_netif_from_index()

static struct netif* cnet_netif_from_index ( uint8_t idx )

inlinestatic

Using the netif index return the netif structure pointer.

Definition at line 171 of file cnet_netif.h.

◆ cnet_netif_match_subnet()

static struct netif* cnet_netif_match_subnet ( struct in_addr * ipaddr )

inlinestatic

Locate the closest matching IP address in all of the netif structures.

Definition at line 180 of file cnet_netif.h.

◆ cnet_netif_free()

static void cnet_netif_free ( struct netif * netif )

inlinestatic

Free the given netif pointer back to the netif free list.

Definition at line 195 of file cnet_netif.h.

◆ cnet_netif_alloc()

static struct netif* cnet_netif_alloc ( uint16_t lpid )

inlinestatic

Allocate a netif structure and return the pointer.

Definition at line 208 of file cnet_netif.h.

◆ cnet_netif_get_flags()

static int cnet_netif_get_flags	(	struct netif *	netif,
		uint32_t *	flags
	)

inlinestatic

Get the flags for the given netif structure pointer.

Definition at line 228 of file cnet_netif.h.

◆ cnet_netif_register()

CNDP_API int cnet_netif_register	(	uint16_t	lpid,
		char *	ifname,
		char *	netdev
	)

Register lport, ifname and netdev to create a netif structure.

Parameters

lpid	The lport value to register
ifname	The interface name
netdev	The netdev name to assign to the netif structure

Returns: -1 on failure or 0 on success

Examples: examples/cnet-graph/parse-args.c, and examples/cnet-quic/parse-args.c.

◆ cnet_netif_attach_ports()

CNDP_API int cnet_netif_attach_ports ( struct cnet * cnet )

Attach ports to CNET and the netif structures.

Parameters

cnet	The CNET structure pointer

Returns: -1 on failure or 0 on success

◆ cnet_netif_from_name()

CNDP_API struct netif* cnet_netif_from_name	(	const char *	name,
		int	typ
	)

Locate the netif for the given interface name.

Parameters

name	The name of the interface to find
typ	The type of netif to find.

Returns: NULL on error or pointer to netif structure

◆ cnet_netif_set_mtu()

CNDP_API int cnet_netif_set_mtu	(	struct netif *	netif,
		uint16_t	mtu
	)

Set the MTU for a given netif structure.

Parameters

netif	The netif structure pointer
mtu	The MTU value to set

Returns: -1 on error or 0 on success

◆ cnet_netif_foreach()

CNDP_API int cnet_netif_foreach	(	int()(struct netif netif, void *arg)	func,
		void *	arg
	)

look over all netif structures calling the specified function

Parameters

func	The function to call
arg	The argument to pass to the function

Returns: -1 on error or 0 on success

◆ cnet_ipv4_ipaddr_find()

CNDP_API struct inet4_addr* cnet_ipv4_ipaddr_find	(	struct netif *	netif,
		struct in_addr *	ip
	)

Find the given IPv4 address in a given netif structure.

Parameters

netif	The netif structure to search for the giben IPv4 address
ip	The IPv4 address to search

Returns: NULL on error or pointer to inet4_addr structure

◆ cnet_ipv4_ipaddr_delete()

CNDP_API int cnet_ipv4_ipaddr_delete	(	struct netif *	netif,
		struct in_addr *	ip
	)

Delete the given IPv4 address from the given netif structure.

Parameters

netif	The netif structure to search for the giben IPv4 address
ip	The IPv4 address to search

Returns: -1 on error or 0 on success

◆ cnet_ipv4_ipaddr_add()

CNDP_API int cnet_ipv4_ipaddr_add	(	struct netif *	netif,
		struct inet4_addr *	ip
	)

Add a new IPv4 address to the given netif structure.

Parameters

netif	The netif structure to search for the giben IPv4 address
ip	The IPv4 address to search

Returns: -1 on error or 0 on success

◆ cnet_netif_set_flags()

CNDP_API int cnet_netif_set_flags	(	struct netif *	netif,
		uint32_t	flags
	)

Add flags or set the flags to a netif structure.

Parameters

netif	The netif structure to search for the giben IPv4 address
flags	The flags to set in the netif structure

Returns: -1 on error or 0 on success

◆ cnet_netif_find_by_name()

CNDP_API struct netif* cnet_netif_find_by_name ( char * ifname )

Find the netif structure for the given interface name.

Parameters

ifname The interface name to search for in the system

Returns: NULL on error or pointer to netif structure

◆ cnet_netif_find_by_ifindex()

CNDP_API struct netif* cnet_netif_find_by_ifindex ( int ifindex )

Locate the netif structure by the ifindex value.

Parameters

ifindex The ifindex value for the netif structure

Returns: NULL on error or pointer to netif structure

◆ cnet_netif_find_by_netdev()

CNDP_API struct netif* cnet_netif_find_by_netdev ( char * netdev_name )

Find the netif structure by the netdev name.

Parameters

netdev_name The netdev name to search for in system

Returns: NULL on error or pointer to netif structure

◆ cnet_netif_find_by_lport()

CNDP_API struct netif* cnet_netif_find_by_lport ( int lport )

Find the netif structure by the lport id.

Parameters

lport The lport id value to help locate the netif pointer.

Returns: NULL on error or pointer to netif structure.

◆ cnet_is_ifname_valid()

CNDP_API int cnet_is_ifname_valid ( char * ifname )

Is the ifname a valid interface name.

Parameters

ifname Locate and see if the interface name is known

Returns: 0 on not found or 1 on found

◆ cnet_is_netdev_valid()

CNDP_API int cnet_is_netdev_valid ( char * netdev_name )

Is the netdev name a valid netdev.

Parameters

netdev_name Locate and see if the netdev name is known

Returns: 0 on not found or 1 on found

◆ cnet_is_ifindex_valid()

CNDP_API int cnet_is_ifindex_valid ( int ifindex )

Is the ifindex valid interface index.

Parameters

ifindex The ifindex to validate

Returns: 0 on not found or 1 on found

Macros

Functions

Detailed Description

Macro Definition Documentation

◆ _IFF_UP

◆ _IFF_BROADCAST

◆ _IFF_DEBUG

◆ _IFF_LOOPBACK

◆ _IFF_POINTOPOINT

◆ _IFF_SMART

◆ _IFF_RUNNING

◆ _IFF_NOARP

◆ _IFF_PROMISC

◆ _IFF_ALLMULTI

◆ _IFF_OACTIVE

◆ _IFF_SIMPLEX

◆ _IFF_LINK0

◆ _IFF_LINK1

◆ _IFF_LINK2

◆ _IFF_MULTICAST

◆ _IFF_NOTRAILERS

◆ _IFF_INET_UP

◆ _IFF_INET6_UP

◆ _IFF_RARP

◆ _IFF_DONT_FORWARD

Function Documentation

◆ cnet_ipv4_broadcast()

◆ cnet_netif_from_index()

◆ cnet_netif_match_subnet()

◆ cnet_netif_free()

◆ cnet_netif_alloc()

◆ cnet_netif_get_flags()

◆ cnet_netif_register()

◆ cnet_netif_attach_ports()

◆ cnet_netif_from_name()

◆ cnet_netif_set_mtu()

◆ cnet_netif_foreach()

◆ cnet_ipv4_ipaddr_find()

◆ cnet_ipv4_ipaddr_delete()

◆ cnet_ipv4_ipaddr_add()

◆ cnet_netif_set_flags()

◆ cnet_netif_find_by_name()

◆ cnet_netif_find_by_ifindex()

◆ cnet_netif_find_by_netdev()

◆ cnet_netif_find_by_lport()

◆ cnet_is_ifname_valid()

◆ cnet_is_netdev_valid()

◆ cnet_is_ifindex_valid()