iPXE
route_ipv4.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/netdevice.h>
28 #include <ipxe/ip.h>
29 #include <usr/route.h>
30 
31 /** @file
32  *
33  * IPv4 routing management
34  *
35  */
36 
37 /**
38  * Print IPv4 routing table
39  *
40  * @v netdev Network device
41  */
42 static void route_ipv4_print ( struct net_device *netdev ) {
43  struct ipv4_miniroute *miniroute;
44 
45  list_for_each_entry ( miniroute, &ipv4_miniroutes, list ) {
46  if ( miniroute->netdev != netdev )
47  continue;
48  printf ( "%s: %s/", netdev->name,
49  inet_ntoa ( miniroute->address ) );
50  printf ( "%s", inet_ntoa ( miniroute->netmask ) );
51  if ( miniroute->gateway.s_addr )
52  printf ( " gw %s", inet_ntoa ( miniroute->gateway ) );
53  if ( ! netdev_is_open ( miniroute->netdev ) )
54  printf ( " (inaccessible)" );
55  printf ( "\n" );
56  }
57 }
58 
59 /** IPv4 routing family */
60 struct routing_family ipv4_routing_family __routing_family ( ROUTING_IPV4 ) = {
62 };
struct in_addr netmask
Subnet mask.
Definition: ip.h:68
int printf(const char *fmt,...)
Write a formatted string to the console.
Definition: vsprintf.c:464
struct list_head list
List of miniroutes.
Definition: ip.h:60
FILE_LICENCE(GPL2_OR_LATER_OR_UBDL)
struct net_device * netdev
Network device.
Definition: ip.h:63
IP protocol.
struct in_addr address
IPv4 address.
Definition: ip.h:66
Routing management.
static void route_ipv4_print(struct net_device *netdev)
Print IPv4 routing table.
Definition: route_ipv4.c:42
struct routing_family ipv4_routing_family __routing_family(ROUTING_IPV4)
IPv4 routing family.
static int netdev_is_open(struct net_device *netdev)
Check whether or not network device is open.
Definition: netdevice.h:652
An IPv4 address/routing table entry.
Definition: ip.h:58
#define list_for_each_entry(pos, head, member)
Iterate over entries in a list.
Definition: list.h:420
struct in_addr gateway
Gateway address.
Definition: ip.h:70
static struct net_device * netdev
Definition: gdbudp.c:52
A routing family.
Definition: route.h:15
void(* print)(struct net_device *netdev)
Print routes for a network device.
Definition: route.h:21
#define ROUTING_IPV4
Definition: route.h:30
A network device.
Definition: netdevice.h:348
char * inet_ntoa(struct in_addr in)
Convert IPv4 address to dotted-quad notation.
Definition: ipv4.c:658
struct list_head ipv4_miniroutes
List of IPv4 miniroutes.
Definition: ipv4.c:57
uint32_t s_addr
Definition: in.h:40
Network device management.
char name[NETDEV_NAME_LEN]
Name of this network device.
Definition: netdevice.h:358