Merge grub_net into net. Compiles but is broken right now.

grub-core/net/drivers/ieee1275/ofnet.c

@@ -0,0 +1,175 @@
+#include <grub/net/netbuff.h>
+#include <grub/ieee1275/ofnet.h>
+#include <grub/ieee1275/ieee1275.h>
+#include <grub/net.h>
+
+static
+grub_err_t card_open (struct grub_net_card *dev)
+{
+
+  struct grub_ofnetcard_data *data = dev->data;
+  return  grub_ieee1275_open (data->path,&(data->handle)); 
+}
+
+static
+grub_err_t card_close (struct grub_net_card *dev)
+{
+
+  struct grub_ofnetcard_data *data = dev->data;
+  
+  if (data->handle)
+    grub_ieee1275_close (data->handle);
+  return GRUB_ERR_NONE;
+}
+
+static
+grub_err_t send_card_buffer (struct grub_net_card *dev, struct grub_net_buff *pack)
+{
+  
+  int actual;
+  struct grub_ofnetcard_data *data = dev->data;
+  
+  return grub_ieee1275_write (data->handle,pack->data,pack->tail - pack->data,&actual);
+}
+
+static
+grub_err_t get_card_packet (struct grub_net_card *dev, struct grub_net_buff *pack)
+{
+
+  int actual, rc;
+  struct grub_ofnetcard_data *data = dev->data;
+  grub_netbuff_clear(pack); 
+
+  do
+  {
+    rc = grub_ieee1275_read (data->handle,pack->data,1500,&actual);
+
+  }while (actual <= 0 || rc < 0);
+  grub_netbuff_put (pack, actual);
+
+  return GRUB_ERR_NONE; 
+}
+
+static struct grub_net_card_driver ofdriver = 
+{
+  .name = "ofnet",
+  .init = card_open,
+  .fini = card_close,  
+  .send = send_card_buffer, 
+  .recv = get_card_packet
+};
+
+static const struct
+{
+  char *name;
+  int offset;
+}
+
+bootp_response_properties[] = 
+{
+  { .name = "bootp-response", .offset = 0 },
+  { .name = "dhcp-response", .offset = 0 },
+  { .name = "bootpreply-packet", .offset = 0x2a },
+};
+
+
+grub_bootp_t 
+grub_getbootp( void )
+{
+  grub_bootp_t packet = grub_malloc(sizeof *packet);
+  void *bootp_response = NULL; 
+  grub_ssize_t size;
+  unsigned int i;
+
+  for  ( i = 0; i < ARRAY_SIZE (bootp_response_properties); i++)
+    if (grub_ieee1275_get_property_length (grub_ieee1275_chosen, 
+					   bootp_response_properties[i].name,
+					   &size) >= 0)
+      break;
+
+  if (size < 0)
+  {
+    grub_printf("Error to get bootp\n");
+    return NULL;
+  }
+
+  if (grub_ieee1275_get_property (grub_ieee1275_chosen,
+				  bootp_response_properties[i].name,
+				  bootp_response ,
+				  size, 0) < 0)
+  {
+    grub_printf("Error to get bootp\n");
+    return NULL;
+  }
+
+  packet = (void *) ((int)bootp_response
+		     + bootp_response_properties[i].offset);
+  return packet;
+}
+
+void grub_ofnet_findcards (void)
+{
+  struct grub_net_card *card;
+  int i = 0;
+
+  auto int search_net_devices (struct grub_ieee1275_devalias *alias);
+
+  int search_net_devices (struct grub_ieee1275_devalias *alias)
+  {  
+     if ( !grub_strcmp (alias->type,"network") )
+     {
+        
+        card = grub_malloc (sizeof (struct grub_net_card));
+        struct grub_ofnetcard_data *ofdata = grub_malloc (sizeof (struct grub_ofnetcard_data));
+        ofdata->path = grub_strdup (alias->path);
+        card->data = ofdata; 
+        card->name = grub_xasprintf("eth%d",i++); // grub_strdup (alias->name);
+        grub_net_card_register (card); 
+     }
+     return 0;
+  }
+
+  /*Look at all nodes for devices of the type network*/
+  grub_ieee1275_devices_iterate (search_net_devices);
+
+}
+
+void grub_ofnet_probecards (void)
+{
+  struct grub_net_card *card;
+  struct grub_net_card_driver *driver;
+
+ /*Assign correspondent driver for each device. */
+  FOR_NET_CARDS (card)
+  {
+    FOR_NET_CARD_DRIVERS (driver)
+    {
+      if (driver->init(card) == GRUB_ERR_NONE)
+      {
+        card->driver = driver;
+        continue;
+      } 
+    }
+  }
+}
+
+GRUB_MOD_INIT(ofnet)
+{
+  grub_net_card_driver_register (&ofdriver);
+  grub_ofnet_findcards(); 
+  grub_ofnet_probecards(); 
+
+  /*init tftp stack - will be handled by module subsystem in the future*/
+  tftp_ini ();
+  /*get bootp packet - won't be needed in the future*/
+  bootp_pckt = grub_getbootp ();
+  grub_disknet_init();
+}
+
+GRUB_MODE_FINI(ofnet)
+{
+  grub_net_card_driver_unregister (&ofdriver);
+}
+
+
+