87fdc7e8d2
Change ofnet.c to disknet.c and remove almost all ieee1275 specific code. Create grub_net_malloc to handle iee1275 memory issues in a temporary solution.
105 lines
2.8 KiB
C
105 lines
2.8 KiB
C
#include <grub/misc.h>
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#include <grub/mm.h>
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#include <grub/net/ethernet.h>
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#include <grub/net/ip.h>
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#include <grub/net/arp.h>
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#include <grub/net/ieee1275/interface.h>
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#include <grub/net/netbuff.h>
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#include <grub/net/interface.h>
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#include <grub/net.h>
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#include <grub/time.h>
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#include <grub/net/arp.h>
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static grub_err_t
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send_ethernet_packet (struct grub_net_network_layer_interface *inf __attribute__ ((unused)),
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struct grub_net_network_link_interface *net_link_inf __attribute__ ((unused)) ,struct grub_net_buff *nb,
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struct grub_net_addr target_addr, grub_uint16_t ethertype)
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{
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struct etherhdr *eth;
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grub_netbuff_push (nb,sizeof(*eth));
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eth = (struct etherhdr *) nb->data;
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grub_memcpy(eth->dst, target_addr.addr, target_addr.len);
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grub_memcpy(eth->src, bootp_pckt->chaddr, 6);
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eth->type = ethertype;
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return inf->card->driver->send (inf->card,nb);
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}
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static grub_err_t
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recv_ethernet_packet (struct grub_net_network_layer_interface *inf __attribute__ ((unused)),
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struct grub_net_network_link_interface *net_link_inf __attribute__ ((unused)) ,struct grub_net_buff *nb,
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grub_uint16_t ethertype)
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{
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struct etherhdr *eth;
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grub_uint64_t start_time, current_time;
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struct llchdr *llch;
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struct snaphdr *snaph;
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grub_uint16_t type;
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start_time = grub_get_time_ms();
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while (1)
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{
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inf->card->driver->recv (inf->card,nb);
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eth = (struct etherhdr *) nb->data;
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type = eth->type;
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grub_netbuff_pull(nb,sizeof (*eth));
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if (eth->type <=1500)
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{
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llch = (struct llchdr *) nb->data;
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type = llch->dsap & LLCADDRMASK;
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if (llch->dsap == 0xaa && llch->ssap == 0xaa && llch->ctrl == 0x3)
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{
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grub_netbuff_pull (nb,sizeof(*llch));
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snaph = (struct snaphdr *) nb->data;
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type = snaph->type;
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}
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}
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/* ARP packet */
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if (type == ARP_ETHERTYPE)
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{
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arp_receive(inf, net_link_inf, nb);
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if (ethertype == ARP_ETHERTYPE)
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return GRUB_ERR_NONE;
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}
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/* IP packet */
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else if(type == IP_ETHERTYPE && ethertype == IP_ETHERTYPE)
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return GRUB_ERR_NONE;
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current_time = grub_get_time_ms ();
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if (current_time - start_time > TIMEOUT_TIME_MS)
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return grub_error (GRUB_ERR_TIMEOUT, "Time out.");
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}
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/* - get ethernet header
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- verify if the next layer is the desired one.
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- if not. get another packet.
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- remove ethernet header from buffer*/
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return GRUB_ERR_NONE;
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}
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static struct grub_net_link_layer_protocol grub_ethernet_protocol =
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{
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.name = "ethernet",
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.id = GRUB_NET_ETHERNET_ID,
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.type = ARPHRD_ETHERNET,
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.send = send_ethernet_packet,
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.recv = recv_ethernet_packet
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};
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void ethernet_ini(void)
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{
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grub_net_link_layer_protocol_register (&grub_ethernet_protocol);
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}
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void ethernet_fini(void)
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{
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grub_net_link_layer_protocol_unregister (&grub_ethernet_protocol);
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}
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