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Add route() function to display routing table.

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This commit is contained in:
Michael Brown
2007-01-10 20:38:20 +00:00
parent 78ded6604a
commit d9ba8f790b
6 changed files with 85 additions and 33 deletions
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35
src/net/ipv4.c
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@@ -17,11 +17,6 @@
*
* IPv4 protocol
*
* The gPXE IP stack is currently implemented on top of the uIP
* protocol stack. This file provides wrappers around uIP so that
* higher-level protocol implementations do not need to talk directly
* to uIP (which has a somewhat baroque API).
*
*/
/* Unique IP datagram identification number */
@@ -29,26 +24,8 @@ static uint16_t next_ident = 0;
struct net_protocol ipv4_protocol;
/** An IPv4 address/routing table entry */
struct ipv4_miniroute {
/** List of miniroutes */
struct list_head list;
/** Network device */
struct net_device *netdev;
/** Reference to network device */
struct reference netdev_ref;
/** IPv4 address */
struct in_addr address;
/** Subnet mask */
struct in_addr netmask;
/** Gateway address */
struct in_addr gateway;
};
/** List of IPv4 miniroutes */
static LIST_HEAD ( miniroutes );
struct list_head ipv4_miniroutes = LIST_HEAD_INIT ( ipv4_miniroutes );
/** List of fragment reassembly buffers */
static LIST_HEAD ( frag_buffers );
@@ -90,9 +67,9 @@ static struct ipv4_miniroute * add_ipv4_miniroute ( struct net_device *netdev,
* to start of list.
*/
if ( gateway.s_addr != INADDR_NONE ) {
list_add_tail ( &miniroute->list, &miniroutes );
list_add_tail ( &miniroute->list, &ipv4_miniroutes );
} else {
list_add ( &miniroute->list, &miniroutes );
list_add ( &miniroute->list, &ipv4_miniroutes );
}
/* Record reference to net_device */
@@ -166,7 +143,7 @@ int add_ipv4_address ( struct net_device *netdev, struct in_addr address,
void del_ipv4_address ( struct net_device *netdev ) {
struct ipv4_miniroute *miniroute;
list_for_each_entry ( miniroute, &miniroutes, list ) {
list_for_each_entry ( miniroute, &ipv4_miniroutes, list ) {
if ( miniroute->netdev == netdev ) {
del_ipv4_miniroute ( miniroute );
break;
@@ -186,7 +163,7 @@ static struct ipv4_miniroute * ipv4_route ( struct in_addr *dest ) {
int local;
int has_gw;
list_for_each_entry ( miniroute, &miniroutes, list ) {
list_for_each_entry ( miniroute, &ipv4_miniroutes, list ) {
local = ( ( ( dest->s_addr ^ miniroute->address.s_addr )
& miniroute->netmask.s_addr ) == 0 );
has_gw = ( miniroute->gateway.s_addr != INADDR_NONE );
@@ -547,7 +524,7 @@ static int ipv4_arp_check ( struct net_device *netdev, const void *net_addr ) {
const struct in_addr *address = net_addr;
struct ipv4_miniroute *miniroute;
list_for_each_entry ( miniroute, &miniroutes, list ) {
list_for_each_entry ( miniroute, &ipv4_miniroutes, list ) {
if ( ( miniroute->netdev == netdev ) &&
( miniroute->address.s_addr == address->s_addr ) ) {
/* Found matching address */