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Add a more generic efi_setenv function.

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efi_setenv allows any UEFI variable to be set.
This commit is contained in:
imp 2019-04-18 05:37:18 +00:00
parent a93250da75
commit 9d143def97
2 changed files with 20 additions and 0 deletions
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1
stand/efi/include/efilib.h
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@ -125,6 +125,7 @@ void cpy16to8(const CHAR16 *, char *, size_t);
EFI_STATUS efi_freebsd_getenv(const char *v, void *data, __size_t *len);
EFI_STATUS efi_getenv(EFI_GUID *g, const char *v, void *data, __size_t *len);
EFI_STATUS efi_global_getenv(const char *v, void *data, __size_t *len);
EFI_STATUS efi_setenv(EFI_GUID *guid, const char *varname, UINT32 attr, void *data, __size_t len);
EFI_STATUS efi_setenv_freebsd_wcs(const char *varname, CHAR16 *valstr);
/* guids and names */

19
stand/efi/libefi/efienv.c
View File

@ -68,6 +68,25 @@ efi_freebsd_getenv(const char *v, void *data, size_t *len)
return (efi_getenv(&FreeBSDBootVarGUID, v, data, len));
}
/*
* efi_setenv -- Sets an env variable.
*/
EFI_STATUS
efi_setenv(EFI_GUID *guid, const char *varname, UINT32 attr, void *data, __size_t len)
{
EFI_STATUS rv;
CHAR16 *uv;
size_t ul;
uv = NULL;
if (utf8_to_ucs2(varname, &uv, &ul) != 0)
return (EFI_OUT_OF_RESOURCES);
rv = RS->SetVariable(uv, guid, attr, len, data);
free(uv);
return (rv);
}
EFI_STATUS
efi_setenv_freebsd_wcs(const char *varname, CHAR16 *valstr)
{