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Automatically determine prefix when netbooted on EFI

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This commit is contained in:
Vladimir 'phcoder' Serbinenko 2011-07-02 16:56:35 +02:00
parent 574618a2e9
commit cae730b452
8 changed files with 237 additions and 123 deletions
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49
grub-core/net/drivers/efi/efinet.c
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@ -27,14 +27,14 @@ GRUB_MOD_LICENSE ("GPLv3+");
/* GUID. */
static grub_efi_guid_t net_io_guid = GRUB_EFI_SIMPLE_NETWORK_GUID;
static grub_efi_guid_t pxe_io_guid = GRUB_EFI_PXE_GUID;
static grub_err_t
send_card_buffer (const struct grub_net_card *dev,
struct grub_net_buff *pack)
{
grub_efi_status_t st;
grub_efi_simple_network_t *net = dev->data;
grub_efi_simple_network_t *net = dev->efi_net;
st = efi_call_7 (net->transmit, net, 0, pack->tail - pack->data,
pack->data, NULL, NULL, NULL);
if (st != GRUB_EFI_SUCCESS)
@ -46,7 +46,7 @@ static grub_ssize_t
get_card_packet (const struct grub_net_card *dev,
struct grub_net_buff *nb)
{
grub_efi_simple_network_t *net = dev->data;
grub_efi_simple_network_t *net = dev->efi_net;
grub_err_t err;
grub_efi_status_t st;
grub_efi_uintn_t bufsize = 1500;
@ -139,21 +139,62 @@ grub_efinet_findcards (void)
grub_memcpy (card->default_address.mac,
net->mode->current_address,
sizeof (card->default_address.mac));
card->data = net;
card->efi_net = net;
card->efi_handle = *handle;
grub_net_card_register (card);
}
grub_free (handles);
}
static void
grub_efi_net_config_real (grub_efi_handle_t hnd, char **device,
char **path)
{
struct grub_net_card *card;
grub_efi_device_path_t *dp;
dp = grub_efi_get_device_path (hnd);
if (! dp)
return;
FOR_NET_CARDS (card)
{
grub_efi_device_path_t *cdp;
struct grub_efi_pxe *pxe;
struct grub_efi_pxe_mode *pxe_mode;
if (card->driver != &efidriver)
continue;
cdp = grub_efi_get_device_path (card->efi_handle);
if (! cdp)
continue;
if (grub_efi_compare_device_paths (dp, cdp) != 0)
continue;
pxe = grub_efi_open_protocol (hnd, &pxe_io_guid,
GRUB_EFI_OPEN_PROTOCOL_GET_PROTOCOL);
if (! pxe)
continue;
pxe_mode = pxe->mode;
grub_net_configure_by_dhcp_ack (card->name, card, 0,
(struct grub_net_bootp_packet *)
&pxe_mode->dhcp_ack,
sizeof (pxe_mode->dhcp_ack),
1, device, path);
return;
}
}
GRUB_MOD_INIT(efinet)
{
grub_efinet_findcards ();
grub_efi_net_config = grub_efi_net_config_real;
}
GRUB_MOD_FINI(ofnet)
{
struct grub_net_card *card;
grub_efi_net_config = 0;
FOR_NET_CARDS (card)
if (card->driver && !grub_strcmp (card->driver->name, "efinet"))
{