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cleanup pxe and efi network release

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This commit is contained in:
Vladimir 'phcoder' Serbinenko 2011-07-05 14:34:10 +02:00
parent 7e0c2d162a
commit 671a78acb0
6 changed files with 47 additions and 116 deletions
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50
grub-core/net/drivers/i386/pc/pxe.c
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@ -22,8 +22,8 @@
#include <grub/mm.h>
#include <grub/file.h>
#include <grub/misc.h>
#include <grub/bufio.h>
#include <grub/env.h>
#include <grub/loader.h>
#include <grub/machine/pxe.h>
#include <grub/machine/int.h>
@ -273,19 +273,36 @@ struct grub_net_card grub_pxe_card =
.name = "pxe"
};
void
grub_pxe_unload (void)
static grub_err_t
grub_pxe_fini_hw (int noreturn __attribute__ ((unused)))
{
if (pxe_rm_entry)
{
grub_pxe_call (GRUB_PXENV_UNDI_CLOSE,
(void *) GRUB_MEMORY_MACHINE_SCRATCH_ADDR,
pxe_rm_entry);
grub_net_card_unregister (&grub_pxe_card);
grub_pxe_pxenv = 0;
}
grub_pxe_call (GRUB_PXENV_UNDI_CLOSE,
(void *) GRUB_MEMORY_MACHINE_SCRATCH_ADDR,
pxe_rm_entry);
return GRUB_ERR_NONE;
}
static grub_err_t
grub_pxe_restore_hw (void)
{
struct grub_pxe_undi_open *ou;
ou = (void *) GRUB_MEMORY_MACHINE_SCRATCH_ADDR;
grub_memset (ou, 0, sizeof (*ou));
ou->pkt_filter = 4;
grub_pxe_call (GRUB_PXENV_UNDI_OPEN, ou, pxe_rm_entry);
if (ou->status)
{
grub_net_card_unregister (&grub_pxe_card);
return grub_error (GRUB_ERR_IO, "can't open UNDI");
}
return GRUB_ERR_NONE;
}
static void *fini_hnd;
static void
grub_pc_net_config_real (char **device, char **path)
{
@ -303,6 +320,7 @@ grub_pc_net_config_real (char **device, char **path)
grub_net_configure_by_dhcp_ack ("pxe", &grub_pxe_card, 0,
bp, GRUB_PXE_BOOTP_SIZE,
1, device, path);
}
GRUB_MOD_INIT(pxe)
@ -347,10 +365,20 @@ GRUB_MOD_INIT(pxe)
grub_net_card_register (&grub_pxe_card);
grub_pc_net_config = grub_pc_net_config_real;
fini_hnd = grub_loader_register_preboot_hook (grub_pxe_fini_hw,
grub_pxe_restore_hw,
GRUB_LOADER_PREBOOT_HOOK_PRIO_DISK);
}
GRUB_MOD_FINI(pxe)
{
struct grub_net_card *card, *next;
grub_pc_net_config = 0;
grub_pxe_unload ();
grub_pxe_fini_hw (0);
grub_net_card_unregister (&grub_pxe_card);
FOR_NET_CARDS_SAFE (card, next)
if (card->driver && grub_strcmp (card->driver->name, "pxe") == 0)
grub_net_card_unregister (card);
grub_loader_unregister_preboot_hook (fini_hnd);
}