Differential D4515 Diff 12055 sys/boot/efi/libefi/handles.c

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sys/boot/efi/libefi/handles.c

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#include <efi.h>		#include <efi.h>
#include <efilib.h>		#include <efilib.h>

struct entry {		struct entry {
EFI_HANDLE handle;		EFI_HANDLE handle;
EFI_HANDLE alias;		EFI_HANDLE alias;
struct devsw *dev;		struct devsw *dev;
int unit;		int unit;
		uint64_t extra;
};		};

struct entry *entry;		struct entry *entry;
int nentries;		int nentries;

int		int
efi_register_handles(struct devsw sw, EFI_HANDLE handles,		efi_register_handles(struct devsw sw, EFI_HANDLE handles,
EFI_HANDLE *aliases, int count)		EFI_HANDLE *aliases, int count)
Show All 28 Lines	for (idx = 0; idx < nentries; idx++) {
if (entry[idx].unit != unit)		if (entry[idx].unit != unit)
continue;		continue;
return (entry[idx].handle);		return (entry[idx].handle);
}		}
return (NULL);		return (NULL);
}		}

int		int
efi_handle_lookup(EFI_HANDLE h, struct devsw *dev, int unit)		efi_handle_lookup(EFI_HANDLE h, struct devsw *dev, int unit, uint64_t *extra)
{		{
int idx;		int idx;

for (idx = 0; idx < nentries; idx++) {		for (idx = 0; idx < nentries; idx++) {
if (entry[idx].handle != h && entry[idx].alias != h)		if (entry[idx].handle != h && entry[idx].alias != h)
continue;		continue;
if (dev != NULL)		if (dev != NULL)
*dev = entry[idx].dev;		*dev = entry[idx].dev;
if (unit != NULL)		if (unit != NULL)
*unit = entry[idx].unit;		*unit = entry[idx].unit;
		if (extra != NULL)
		*extra = entry[idx].extra;
return (0);		return (0);
}		}
		return (ENOENT);
		}

		int
		efi_handle_update_dev(EFI_HANDLE h, struct devsw *dev, int unit,
		uint64_t guid)
		{
		int idx;

		for (idx = 0; idx < nentries; idx++) {
		if (entry[idx].handle != h)
		continue;
		entry[idx].dev = dev;
		entry[idx].unit = unit;
		entry[idx].alias = NULL;
		entry[idx].extra = guid;
		return (0);
		}

return (ENOENT);		return (ENOENT);
}		}