sysadmin/ipxe
1
0
Fork 0
mirror of https://github.com/ipxe/ipxe synced 2026-02-28 03:11:18 +03:00
Code Issues Packages Projects Releases Wiki Activity

Network layer now works as a proof of concept

Browse Source
This commit is contained in:
Michael Brown
2006-04-28 14:13:50 +00:00
parent 1488cd3b73
commit 129c6c3968
6 changed files with 291 additions and 111 deletions
Download Patch File Download Diff File Expand all files Collapse all files

42
src/net/ipv4.c
View File

@@ -1,6 +1,7 @@
#include <string.h>
#include <stdint.h>
#include <byteswap.h>
#include <vsprintf.h>
#include <gpxe/in.h>
@@ -153,7 +154,8 @@ static int ipv4_rx ( struct pk_buff *pkb ) {
/* Transfer to uIP buffer. Horrendously space-inefficient,
* but will do as a proof-of-concept for now.
*/
memcpy ( uip_buf, pkb->data, pkb_len ( pkb ) );
uip_len = pkb_len ( pkb );
memcpy ( uip_buf, pkb->data, uip_len );
/* Hand to uIP for processing */
uip_input ();
@@ -198,22 +200,40 @@ static int ipv4_route ( const struct pk_buff *pkb,
}
/* Set broadcast and multicast flags as applicable */
nethdr->dest_flags = 0;
nethdr->flags = 0;
if ( dest->s_addr == htonl ( INADDR_BROADCAST ) ) {
nethdr->dest_flags = NETADDR_FL_BROADCAST;
nethdr->flags = PKT_FL_BROADCAST;
} else if ( IN_MULTICAST ( dest->s_addr ) ) {
nethdr->dest_flags = NETADDR_FL_MULTICAST;
nethdr->flags = PKT_FL_MULTICAST;
}
return 0;
}
/**
* Transcribe IP address
*
* @v net_addr IP address
* @ret string IP address in dotted-quad notation
*
*/
static const char * ipv4_ntoa ( const void *net_addr ) {
static char buf[16]; /* "xxx.xxx.xxx.xxx" */
uint8_t *ip_addr = net_addr;
sprintf ( buf, "%d.%d.%d.%d", ip_addr[0], ip_addr[1], ip_addr[2],
ip_addr[3] );
return buf;
}
/** IPv4 protocol */
struct net_protocol ipv4_protocol = {
.net_proto = ETH_P_IP,
.name = "IP",
.net_proto = htons ( ETH_P_IP ),
.net_addr_len = sizeof ( struct in_addr ),
.rx = ipv4_rx,
.route = ipv4_route,
.ntoa = ipv4_ntoa,
};
NET_PROTOCOL ( ipv4_protocol );
@@ -221,6 +241,18 @@ NET_PROTOCOL ( ipv4_protocol );
/** IPv4 address for the static single net device */
struct net_address static_single_ipv4_address = {
.net_protocol = &ipv4_protocol,
#warning "Remove this static-IP hack"
.net_addr = { 0x0a, 0xfe, 0xfe, 0x01 },
};
STATIC_SINGLE_NETDEV_ADDRESS ( static_single_ipv4_address );
#warning "Remove this static-IP hack"
static struct ipv4_route routing_table[NUM_ROUTES] = {
{ { htonl ( 0x0afefe00 ) }, { htonl ( 0xfffffffc ) },
{ htonl ( 0x00000000 ) }, { htonl ( 0x0afefe01 ) } },
{ { htonl ( 0x00000000 ) }, { htonl ( 0x00000000 ) },
{ htonl ( 0x0afefe02 ) }, { htonl ( 0x0afefe01 ) } },
};