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[Settings] Use a settings applicator to configure IPv4 routes.

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This commit is contained in:
Michael Brown
2008-03-21 00:01:27 +00:00
parent eae6ac3d0b
commit aec9b8a41b
7 changed files with 51 additions and 86 deletions
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src/net/ipv4.c
+34 -30
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@@ -12,6 +12,8 @@
#include <gpxe/netdevice.h>
#include <gpxe/ip.h>
#include <gpxe/tcpip.h>
#include <gpxe/dhcp.h>
#include <gpxe/settings.h>
/** @file
*
@@ -94,45 +96,47 @@ static void del_ipv4_miniroute ( struct ipv4_miniroute *miniroute ) {
}
/**
* Add IPv4 interface
*
* @v netdev Network device
* @v address IPv4 address
* @v netmask Subnet mask
* @v gateway Gateway address (or @c INADDR_NONE for no gateway)
* @ret rc Return status code
* Create IPv4 routing table
*
* @ret rc Return status code
*/
int add_ipv4_address ( struct net_device *netdev, struct in_addr address,
struct in_addr netmask, struct in_addr gateway ) {
static int ipv4_create_routes ( void ) {
struct ipv4_miniroute *miniroute;
struct ipv4_miniroute *tmp;
struct net_device *netdev;
struct settings *settings;
struct in_addr address = { 0 };
struct in_addr netmask = { 0 };
struct in_addr gateway = { INADDR_NONE };
/* Clear any existing address for this net device */
del_ipv4_address ( netdev );
/* Delete all existing routes */
list_for_each_entry_safe ( miniroute, tmp, &ipv4_miniroutes, list )
del_ipv4_miniroute ( miniroute );
/* Add new miniroute */
miniroute = add_ipv4_miniroute ( netdev, address, netmask, gateway );
if ( ! miniroute )
return -ENOMEM;
/* Create a route for each configured network device */
for_each_netdev ( netdev ) {
settings = netdev_settings ( netdev );
address.s_addr = 0;
fetch_ipv4_setting ( settings, DHCP_EB_YIADDR, &address );
netmask.s_addr = 0;
fetch_ipv4_setting ( settings, DHCP_SUBNET_MASK, &netmask );
gateway.s_addr = INADDR_NONE;
fetch_ipv4_setting ( settings, DHCP_ROUTERS, &gateway );
if ( address.s_addr ) {
miniroute = add_ipv4_miniroute ( netdev, address,
netmask, gateway );
if ( ! miniroute )
return -ENOMEM;
}
}
return 0;
}
/**
* Remove IPv4 interface
*
* @v netdev Network device
*/
void del_ipv4_address ( struct net_device *netdev ) {
struct ipv4_miniroute *miniroute;
list_for_each_entry ( miniroute, &ipv4_miniroutes, list ) {
if ( miniroute->netdev == netdev ) {
del_ipv4_miniroute ( miniroute );
break;
}
}
}
/** IPv4 settings applicator */
struct settings_applicator ipv4_settings_applicator __settings_applicator = {
.apply = ipv4_create_routes,
};
/**
* Perform IPv4 routing