iPXE
neighmgmt.c
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1 /*
2  * Copyright (C) 2013 Michael Brown <mbrown@fensystems.co.uk>.
3  *
4  * This program is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU General Public License as
6  * published by the Free Software Foundation; either version 2 of the
7  * License, or any later version.
8  *
9  * This program is distributed in the hope that it will be useful, but
10  * WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12  * General Public License for more details.
13  *
14  * You should have received a copy of the GNU General Public License
15  * along with this program; if not, write to the Free Software
16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
17  * 02110-1301, USA.
18  *
19  * You can also choose to distribute this program under the terms of
20  * the Unmodified Binary Distribution Licence (as given in the file
21  * COPYING.UBDL), provided that you have satisfied its requirements.
22  */
23 
24 FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
25 
26 #include <stdio.h>
27 #include <ipxe/neighbour.h>
28 #include <usr/neighmgmt.h>
29 
30 /** @file
31  *
32  * Neighbour management
33  *
34  */
35 
36 /**
37  * Print neighbour table
38  *
39  */
40 void nstat ( void ) {
41  struct neighbour *neighbour;
42  struct net_device *netdev;
43  struct ll_protocol *ll_protocol;
44  struct net_protocol *net_protocol;
45 
50  printf ( "%s %s %s is %s %s", netdev->name, net_protocol->name,
55  "(incomplete)" ) );
56  if ( neighbour->discovery )
57  printf ( " (%s)", neighbour->discovery->name );
58  printf ( "\n" );
59  }
60 }
Neighbour management.
const char * name
Protocol name.
Definition: netdevice.h:66
int printf(const char *fmt,...)
Write a formatted string to the console.
Definition: vsprintf.c:464
const char * name
Name.
Definition: neighbour.h:21
uint8_t net_dest[MAX_NET_ADDR_LEN]
Network-layer destination address.
Definition: neighbour.h:48
struct net_protocol * net_protocol
Network-layer protocol.
Definition: neighbour.h:46
struct list_head neighbours
The neighbour cache.
Definition: neighbour.c:52
A link-layer protocol.
Definition: netdevice.h:114
const char * name
Protocol name.
Definition: netdevice.h:116
FILE_LICENCE(GPL2_OR_LATER_OR_UBDL)
struct neighbour_discovery * discovery
Neighbour discovery protocol (if any)
Definition: neighbour.h:53
#define list_for_each_entry(pos, head, member)
Iterate over entries in a list.
Definition: list.h:420
const char *(* ntoa)(const void *net_addr)
Transcribe network-layer address.
Definition: netdevice.h:94
static struct net_device * netdev
Definition: gdbudp.c:52
uint8_t ll_dest[MAX_LL_ADDR_LEN]
Link-layer destination address.
Definition: neighbour.h:50
A network device.
Definition: netdevice.h:348
A neighbour cache entry.
Definition: neighbour.h:37
A network-layer protocol.
Definition: netdevice.h:64
char name[NETDEV_NAME_LEN]
Name of this network device.
Definition: netdevice.h:358
void nstat(void)
Print neighbour table.
Definition: neighmgmt.c:40
Neighbour discovery.
struct net_device * netdev
Network device.
Definition: neighbour.h:44
const char *(* ntoa)(const void *ll_addr)
Transcribe link-layer address.
Definition: netdevice.h:163
struct ll_protocol * ll_protocol
Link-layer protocol.
Definition: netdevice.h:366
static int neighbour_has_ll_dest(struct neighbour *neighbour)
Test if neighbour cache entry has a valid link-layer address.
Definition: neighbour.h:70