struct grub_net_buff *nb;
struct udphdr *udph;
grub_net_network_level_address_t target;
+ grub_net_link_level_address_t ll_target;
if (!ifaces[j].prev)
continue;
udph->len = grub_cpu_to_be16 (nb->tail - nb->data);
target.type = GRUB_NET_NETWORK_LEVEL_PROTOCOL_IPV4;
target.ipv4 = 0xffffffff;
+ err = grub_net_link_layer_resolve (&ifaces[j], &target, &ll_target);
+ if (err)
+ return err;
+
udph->chksum = grub_net_ip_transport_checksum (nb, GRUB_NET_IP_UDP,
&ifaces[j].address,
&target);
- err = grub_net_send_ip_packet (&ifaces[j], &target, NULL, nb,
+ err = grub_net_send_ip_packet (&ifaces[j], &target, &ll_target, nb,
GRUB_NET_IP_UDP);
grub_netbuff_free (nb);
if (err)
struct snaphdr *snaph;
grub_net_ethertype_t type;
grub_net_link_level_address_t hwaddress;
+ grub_net_link_level_address_t src_hwaddress;
grub_err_t err;
eth = (struct etherhdr *) nb->data;
hwaddress.type = GRUB_NET_LINK_LEVEL_PROTOCOL_ETHERNET;
grub_memcpy (hwaddress.mac, eth->dst, sizeof (hwaddress.mac));
+ src_hwaddress.type = GRUB_NET_LINK_LEVEL_PROTOCOL_ETHERNET;
+ grub_memcpy (src_hwaddress.mac, eth->src, sizeof (src_hwaddress.mac));
switch (type)
{
/* IP packet. */
case GRUB_NET_ETHERTYPE_IP:
case GRUB_NET_ETHERTYPE_IP6:
- return grub_net_recv_ip_packets (nb, card, &hwaddress);
+ return grub_net_recv_ip_packets (nb, card, &hwaddress, &src_hwaddress);
}
grub_netbuff_free (nb);
return GRUB_ERR_NONE;
grub_err_t
grub_net_recv_icmp_packet (struct grub_net_buff *nb,
struct grub_net_network_level_interface *inf,
+ const grub_net_link_level_address_t *ll_src,
const grub_net_network_level_address_t *src)
{
struct icmp_header *icmph;
icmphr->checksum = 0;
icmphr->checksum = grub_net_ip_chksum ((void *) nb_reply->data,
nb_reply->tail - nb_reply->data);
- /* FIXME: gateway pings. */
- err = grub_net_send_ip_packet (inf, src, NULL,
+ err = grub_net_send_ip_packet (inf, src, ll_src,
nb_reply, GRUB_NET_IP_ICMP);
ping_fail:
grub_net_recv_icmp6_packet (struct grub_net_buff *nb,
struct grub_net_card *card,
struct grub_net_network_level_interface *inf,
+ const grub_net_link_level_address_t *ll_src,
const grub_net_network_level_address_t *source,
const grub_net_network_level_address_t *dest,
grub_uint8_t ttl)
GRUB_NET_IP_ICMPV6,
&inf->address,
source);
- /* FIXME: gateway pings. */
- err = grub_net_send_ip_packet (inf, source, NULL, nb_reply,
+ err = grub_net_send_ip_packet (inf, source, ll_src, nb_reply,
GRUB_NET_IP_ICMPV6);
ping_fail:
GRUB_NET_IP_ICMPV6,
&inf->address,
source);
- err = grub_net_send_ip_packet (inf, source, NULL, nb_reply,
+ err = grub_net_send_ip_packet (inf, source, ll_src, nb_reply,
GRUB_NET_IP_ICMPV6);
ndp_fail:
struct neighbour_solicit *sol;
struct icmp_header *icmphr;
grub_net_network_level_address_t multicast;
+ grub_net_link_level_address_t ll_multicast;
grub_uint8_t *nbd;
multicast.type = GRUB_NET_NETWORK_LEVEL_PROTOCOL_IPV6;
multicast.ipv6[0] = grub_be_to_cpu64_compile_time (0xff02ULL << 48);
| (proto_addr->ipv6[1]
& grub_be_to_cpu64_compile_time (0xffffff)));
+ err = grub_net_link_layer_resolve (inf, &multicast, &ll_multicast);
+ if (err)
+ return err;
+
nb = grub_netbuff_alloc (sizeof (struct neighbour_solicit)
+ sizeof (struct option_header)
+ 6
&inf->address,
&multicast);
nbd = nb->data;
- err = grub_net_send_ip_packet (inf, &multicast, NULL, nb,
+ err = grub_net_send_ip_packet (inf, &multicast, &ll_multicast, nb,
GRUB_NET_IP_ICMPV6);
if (err)
goto fail;
if (grub_net_link_layer_resolve_check (inf, proto_addr))
break;
nb->data = nbd;
- err = grub_net_send_ip_packet (inf, &multicast, NULL, nb,
+ err = grub_net_send_ip_packet (inf, &multicast, &ll_multicast, nb,
GRUB_NET_IP_ICMPV6);
if (err)
break;
static grub_err_t
grub_net_send_ip4_packet (struct grub_net_network_level_interface *inf,
const grub_net_network_level_address_t *target,
- const grub_net_network_level_address_t *gw,
+ const grub_net_link_level_address_t *ll_target_addr,
struct grub_net_buff *nb,
grub_net_ip_protocol_t proto)
{
struct iphdr *iph;
- grub_net_link_level_address_t ll_target_addr;
- grub_err_t err;
COMPILE_TIME_ASSERT (GRUB_NET_OUR_IPV4_HEADER_SIZE == sizeof (*iph));
- /* Determine link layer target address via ARP. */
- err = grub_net_link_layer_resolve (inf, gw ? : target, &ll_target_addr);
- if (err)
- return err;
-
if (nb->tail - nb->data + sizeof (struct iphdr) > inf->card->mtu)
- return send_fragmented (inf, target, nb, proto, ll_target_addr);
+ return send_fragmented (inf, target, nb, proto, *ll_target_addr);
grub_netbuff_push (nb, sizeof (*iph));
iph = (struct iphdr *) nb->data;
iph->chksum = 0;
iph->chksum = grub_net_ip_chksum ((void *) nb->data, sizeof (*iph));
- return send_ethernet_packet (inf, nb, ll_target_addr,
+ return send_ethernet_packet (inf, nb, *ll_target_addr,
GRUB_NET_ETHERTYPE_IP);
}
static grub_err_t
handle_dgram (struct grub_net_buff *nb,
struct grub_net_card *card,
+ const grub_net_link_level_address_t *source_hwaddress,
const grub_net_link_level_address_t *hwaddress,
grub_net_ip_protocol_t proto,
const grub_net_network_level_address_t *source,
case GRUB_NET_IP_TCP:
return grub_net_recv_tcp_packet (nb, inf, source);
case GRUB_NET_IP_ICMP:
- return grub_net_recv_icmp_packet (nb, inf, source);
+ return grub_net_recv_icmp_packet (nb, inf, source_hwaddress, source);
case GRUB_NET_IP_ICMPV6:
- return grub_net_recv_icmp6_packet (nb, card, inf, source, dest, ttl);
+ return grub_net_recv_icmp6_packet (nb, card, inf, source_hwaddress,
+ source, dest, ttl);
default:
grub_netbuff_free (nb);
break;
}
static grub_err_t
-grub_net_recv_ip4_packets (struct grub_net_buff * nb,
- struct grub_net_card * card,
- const grub_net_link_level_address_t * hwaddress)
+grub_net_recv_ip4_packets (struct grub_net_buff *nb,
+ struct grub_net_card *card,
+ const grub_net_link_level_address_t *hwaddress,
+ const grub_net_link_level_address_t *src_hwaddress)
{
struct iphdr *iph = (struct iphdr *) nb->data;
grub_err_t err;
dest.type = GRUB_NET_NETWORK_LEVEL_PROTOCOL_IPV4;
dest.ipv4 = iph->dest;
- return handle_dgram (nb, card, hwaddress, iph->protocol,
+ return handle_dgram (nb, card, src_hwaddress, hwaddress, iph->protocol,
&source, &dest, iph->ttl);
}
dest.type = GRUB_NET_NETWORK_LEVEL_PROTOCOL_IPV4;
dest.ipv4 = dst;
- return handle_dgram (ret, card, hwaddress, proto, &source, &dest,
+ return handle_dgram (ret, card, src_hwaddress,
+ hwaddress, proto, &source, &dest,
ttl);
}
static grub_err_t
grub_net_send_ip6_packet (struct grub_net_network_level_interface *inf,
const grub_net_network_level_address_t *target,
- const grub_net_network_level_address_t *gw,
+ const grub_net_link_level_address_t *ll_target_addr,
struct grub_net_buff *nb,
grub_net_ip_protocol_t proto)
{
struct ip6hdr *iph;
- grub_net_link_level_address_t ll_target_addr;
- grub_err_t err;
COMPILE_TIME_ASSERT (GRUB_NET_OUR_IPV6_HEADER_SIZE == sizeof (*iph));
- /* Determine link layer target address via ARP. */
- err = grub_net_link_layer_resolve (inf, gw ? : target, &ll_target_addr);
- if (err)
- return err;
-
if (nb->tail - nb->data + sizeof (struct iphdr) > inf->card->mtu)
return grub_error (GRUB_ERR_NET_PACKET_TOO_BIG, "packet too big");
grub_memcpy (&iph->src, inf->address.ipv6, sizeof (iph->src));
grub_memcpy (&iph->dest, target->ipv6, sizeof (iph->dest));
- return send_ethernet_packet (inf, nb, ll_target_addr,
+ return send_ethernet_packet (inf, nb, *ll_target_addr,
GRUB_NET_ETHERTYPE_IP6);
}
grub_err_t
grub_net_send_ip_packet (struct grub_net_network_level_interface *inf,
const grub_net_network_level_address_t *target,
- const grub_net_network_level_address_t *gw,
+ const grub_net_link_level_address_t *ll_target_addr,
struct grub_net_buff *nb,
grub_net_ip_protocol_t proto)
{
switch (target->type)
{
case GRUB_NET_NETWORK_LEVEL_PROTOCOL_IPV4:
- return grub_net_send_ip4_packet (inf, target, gw, nb, proto);
+ return grub_net_send_ip4_packet (inf, target, ll_target_addr, nb, proto);
case GRUB_NET_NETWORK_LEVEL_PROTOCOL_IPV6:
- return grub_net_send_ip6_packet (inf, target, gw, nb, proto);
+ return grub_net_send_ip6_packet (inf, target, ll_target_addr, nb, proto);
default:
return grub_error (GRUB_ERR_BAD_ARGUMENT, "not an IP");
}
}
static grub_err_t
-grub_net_recv_ip6_packets (struct grub_net_buff * nb,
- struct grub_net_card * card,
- const grub_net_link_level_address_t * hwaddress)
+grub_net_recv_ip6_packets (struct grub_net_buff *nb,
+ struct grub_net_card *card,
+ const grub_net_link_level_address_t *hwaddress,
+ const grub_net_link_level_address_t *src_hwaddress)
{
struct ip6hdr *iph = (struct ip6hdr *) nb->data;
grub_err_t err;
grub_memcpy (source.ipv6, &iph->src, sizeof (source.ipv6));
grub_memcpy (dest.ipv6, &iph->dest, sizeof (dest.ipv6));
- return handle_dgram (nb, card, hwaddress, iph->protocol,
+ return handle_dgram (nb, card, src_hwaddress, hwaddress, iph->protocol,
&source, &dest, iph->ttl);
}
grub_err_t
-grub_net_recv_ip_packets (struct grub_net_buff * nb,
- struct grub_net_card * card,
- const grub_net_link_level_address_t * hwaddress)
+grub_net_recv_ip_packets (struct grub_net_buff *nb,
+ struct grub_net_card *card,
+ const grub_net_link_level_address_t *hwaddress,
+ const grub_net_link_level_address_t *src_hwaddress)
{
struct iphdr *iph = (struct iphdr *) nb->data;
if ((iph->verhdrlen >> 4) == 4)
- return grub_net_recv_ip4_packets (nb, card, hwaddress);
+ return grub_net_recv_ip4_packets (nb, card, hwaddress, src_hwaddress);
if ((iph->verhdrlen >> 4) == 6)
- return grub_net_recv_ip6_packets (nb, card, hwaddress);
+ return grub_net_recv_ip6_packets (nb, card, hwaddress, src_hwaddress);
grub_dprintf ("net", "Bad IP version: %d\n", (iph->verhdrlen >> 4));
grub_netbuff_free (nb);
return GRUB_ERR_NONE;
void (*error_hook) (grub_net_tcp_socket_t sock, void *recv);
void (*fin_hook) (grub_net_tcp_socket_t sock, void *recv);
void *hook_data;
- grub_net_network_level_address_t out_nla, gw;
+ grub_net_network_level_address_t out_nla;
+ grub_net_link_level_address_t ll_target_addr;
struct grub_net_network_level_interface *inf;
grub_net_packets_t packs;
grub_priority_queue_t pq;
}
err = grub_net_send_ip_packet (socket->inf, &(socket->out_nla),
- &(socket->gw),nb, GRUB_NET_IP_TCP);
+ &(socket->ll_target_addr), nb,
+ GRUB_NET_IP_TCP);
if (err)
return err;
nb->data = nbd;
}
err = grub_net_send_ip_packet (sock->inf, &(sock->out_nla),
- &(sock->gw), unack->nb,
+ &(sock->ll_target_addr), unack->nb,
GRUB_NET_IP_TCP);
unack->nb->data = nbd;
if (err)
struct tcphdr *tcph;
int i;
grub_uint8_t *nbd;
+ grub_net_link_level_address_t ll_target_addr;
err = grub_net_resolve_address (server, &addr);
if (err)
if (err)
return NULL;
+ err = grub_net_link_layer_resolve (inf, &gateway, &ll_target_addr);
+ if (err)
+ return NULL;
+
socket = grub_zalloc (sizeof (*socket));
if (socket == NULL)
return NULL;
socket->out_port = out_port;
socket->inf = inf;
socket->out_nla = addr;
- socket->gw = gateway;
+ socket->ll_target_addr = ll_target_addr;
socket->in_port = in_port++;
socket->recv_hook = recv_hook;
socket->error_hook = error_hook;
int j;
nb->data = nbd;
err = grub_net_send_ip_packet (socket->inf, &(socket->out_nla),
- &(socket->gw), nb,
+ &(socket->ll_target_addr), nb,
GRUB_NET_IP_TCP);
if (err)
{
grub_err_t (*recv_hook) (grub_net_udp_socket_t sock, struct grub_net_buff *nb,
void *recv);
void *recv_hook_data;
- grub_net_network_level_address_t out_nla, gw;
+ grub_net_network_level_address_t out_nla;
+ grub_net_link_level_address_t ll_target_addr;
struct grub_net_network_level_interface *inf;
};
grub_net_network_level_address_t gateway;
grub_net_udp_socket_t socket;
static int in_port = 25300;
+ grub_net_link_level_address_t ll_target_addr;
err = grub_net_resolve_address (server, &addr);
if (err)
if (err)
return NULL;
+ err = grub_net_link_layer_resolve (inf, &gateway, &ll_target_addr);
+ if (err)
+ return NULL;
+
socket = grub_zalloc (sizeof (*socket));
if (socket == NULL)
return NULL;
socket->out_port = out_port;
socket->inf = inf;
socket->out_nla = addr;
- socket->gw = gateway;
+ socket->ll_target_addr = ll_target_addr;
socket->in_port = in_port++;
socket->status = GRUB_NET_SOCKET_START;
socket->recv_hook = recv_hook;
&socket->out_nla);
return grub_net_send_ip_packet (socket->inf, &(socket->out_nla),
- &(socket->gw), nb, GRUB_NET_IP_UDP);
+ &(socket->ll_target_addr), nb,
+ GRUB_NET_IP_UDP);
}
grub_err_t
grub_err_t
grub_net_recv_ip_packets (struct grub_net_buff *nb,
struct grub_net_card *card,
- const grub_net_link_level_address_t *hwaddress);
+ const grub_net_link_level_address_t *hwaddress,
+ const grub_net_link_level_address_t *src_hwaddress);
grub_err_t
grub_net_send_ip_packet (struct grub_net_network_level_interface *inf,
const grub_net_network_level_address_t *target,
- const grub_net_network_level_address_t *gw,
+ const grub_net_link_level_address_t *ll_target_addr,
struct grub_net_buff *nb,
grub_net_ip_protocol_t proto);
grub_err_t
grub_net_recv_icmp_packet (struct grub_net_buff *nb,
struct grub_net_network_level_interface *inf,
+ const grub_net_link_level_address_t *ll_src,
const grub_net_network_level_address_t *src);
grub_err_t
grub_net_recv_icmp6_packet (struct grub_net_buff *nb,
struct grub_net_card *card,
struct grub_net_network_level_interface *inf,
+ const grub_net_link_level_address_t *ll_src,
const grub_net_network_level_address_t *source,
const grub_net_network_level_address_t *dest,
grub_uint8_t ttl);