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Create libefivar library. This library aims to provide

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the same API as the GPL'd version of this library. It implements the common
Linux API for programatically manipulating UEFI environment varibales using
the UEFI Runtime Services the kernel provides. It replaces the old efi
library since it is programmed to a different interface, but retails the
CHAR16 to UTF-8 and vice versa conversion routines. The new name is to match
Linux program's expectations.

Differential Revision: https://reviews.freebsd.org/D8128
Reviewed by: kib@, wblock@, Ganael Laplanche
This commit is contained in:
Warner Losh 2016-10-11 22:30:41 +00:00
parent f79d484dff
commit d49a5ddd04
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=307071
16 changed files with 735 additions and 488 deletions
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5
lib/Makefile
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@ -49,6 +49,7 @@ SUBDIR= ${SUBDIR_BOOTSTRAP} \
libdevstat \
libdwarf \
libedit \
${_libefivar} \
${_libelftc} \
libevent \
libexecinfo \
@ -240,6 +241,10 @@ _libcxxrt= libcxxrt
_libcplusplus= libc++
.endif
.if ${MACHINE_ARCH} == "amd64"
_libefivar= libefivar
.endif
.if ${MK_LIBTHR} != "no"
_libthr= libthr
.endif

23
lib/libefi/Makefile
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@ -1,23 +0,0 @@
# $FreeBSD$
.include <bsd.own.mk>
PACKAGE=lib${LIB}
LIB= efi
SHLIB_MAJOR= 1
SRCS= libefi.c \
efi_getvar.c \
efi_nextvarname.c \
efi_setvar.c
CFLAGS+= -I${.CURDIR}
INCS= libefi.h
MAN+= libefi.3
MLINKS+=libefi.3 efi_getvar.3 \
libefi.3 efi_nextvarname.3 \
libefi.3 efi_setvar.3
.include <bsd.lib.mk>

68
lib/libefi/efi_getvar.c
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@ -1,68 +0,0 @@
/*-
* Copyright (c) 2010 Marcel Moolenaar
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <libefi.h>
#include <stdlib.h>
#include "libefi_int.h"
/*
* EFI_STATUS
* GetVariable(
* IN CHAR16 *VariableName,
* IN EFI_GUID *VendorGuid,
* OUT UINT32 *Attributes OPTIONAL,
* IN OUT UINTN *DataSize,
* OUT VOID *Data
* );
*/
int
efi_getvar(char *name, uuid_t *vendor, uint32_t *attrib, size_t *datasize,
void *data)
{
struct iodev_efivar_req req;
int error;
req.namesize = 0;
error = libefi_utf8_to_ucs2(name, &req.namesize, &req.name);
if (error)
return (error);
req.vendor = *vendor;
req.datasize = *datasize;
req.data = data;
req.access = IODEV_EFIVAR_GETVAR;
error = libefi_efivar(&req);
*datasize = req.datasize;
if (!error && attrib != NULL)
*attrib = req.attrib;
free(req.name);
return (error);
}

66
lib/libefi/efi_nextvarname.c
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@ -1,66 +0,0 @@
/*-
* Copyright (c) 2010 Marcel Moolenaar
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <libefi.h>
#include <stdlib.h>
#include "libefi_int.h"
/*
* EFI_STATUS
* GetNextVariableName(
* IN OUT UINTN *VariableNameSize,
* IN OUT CHAR16 *VariableName,
* IN OUT EFI_GUID *VendorGuid
* );
*/
int
efi_nextvarname(size_t *namesize, char *name, uuid_t *vendor)
{
struct iodev_efivar_req req;
int error;
req.namesize = *namesize;
error = libefi_utf8_to_ucs2(name, &req.namesize, &req.name);
if (error)
return (error);
req.vendor = *vendor;
req.access = IODEV_EFIVAR_NEXTNAME;
error = libefi_efivar(&req);
*namesize = req.namesize;
if (!error) {
error = libefi_ucs2_to_utf8(req.name, namesize, name);
if (!error)
*vendor = req.vendor;
}
free(req.name);
return (error);
}

66
lib/libefi/efi_setvar.c
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@ -1,66 +0,0 @@
/*-
* Copyright (c) 2010 Marcel Moolenaar
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <libefi.h>
#include <stdlib.h>
#include "libefi_int.h"
/*
* EFI_STATUS
* SetVariable(
* IN CHAR16 *VariableName,
* IN EFI_GUID *VendorGuid,
* IN UINT32 Attributes,
* IN UINTN DataSize,
* IN VOID *Data
* );
*/
int
efi_setvar(char *name, uuid_t *vendor, uint32_t attrib, size_t datasize,
void *data)
{
struct iodev_efivar_req req;
int error;
req.namesize = 0;
error = libefi_utf8_to_ucs2(name, &req.namesize, &req.name);
if (error)
return (error);
req.vendor = *vendor;
req.attrib = attrib;
req.datasize = datasize;
req.data = data;
req.access = IODEV_EFIVAR_SETVAR;
error = libefi_efivar(&req);
free(req.name);
return (error);
}

143
lib/libefi/libefi.3
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@ -1,143 +0,0 @@
.\"-
.\" Copyright (c) 2010 Marcel Moolenaar
.\" All rights reserved.
.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
.\" 1. Redistributions of source code must retain the above copyright
.\" notice, this list of conditions and the following disclaimer.
.\" 2. Redistributions in binary form must reproduce the above copyright
.\" notice, this list of conditions and the following disclaimer in the
.\" documentation and/or other materials provided with the distribution.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
.\" SUCH DAMAGE.
.\"
.\" $FreeBSD$
.\"
.Dd January 29, 2010
.Dt LIBEFI 3
.Os
.Sh NAME
.Nm efi_getvar , efi_nextvarname , efi_setvar
.Nd "interface for accessing the EFI variable services"
.Sh LIBRARY
.Lb libefi
.Sh SYNOPSIS
.In libefi.h
.Ft int
.Fo efi_getvar
.Fa "char *name" "uuid_t *vendor" "uint32_t *attrib"
.Fa "size_t *datasize" "void *data"
.Fc
.Ft int
.Fn efi_nextvarname "size_t *namesize" "char *name" "uuid_t *vendor"
.Ft int
.Fo efi_setvar
.Fa "char *name" "uuid_t *vendor" "uint32_t attrib"
.Fa "size_t datasize" "void *data"
.Fc
.Sh DESCRIPTION
The
.Nm libefi
library provides access to a select set of the runtime services of the
Extensible Firmware Interface (EFI).
.Pp
The
.Fn efi_nextvarname
function is used to enumerate the variables.
The
.Fa namesize
parameter needs to be set to the size of the buffer pointed to by
.Fa name .
On return,
.Fa namesize
is set to the length of the variable name (including the terminating
.Ql \e0 )
irrespective of whether the buffer was big enough.
The buffer pointed to by
.Fa name
contains the full or partial variable name on return.
Only on successful completion of the request is the
.Fa vendor
updated.
The values returned should be passed to successive calls to
.Fn efi_nextvarname
until all variables have been enumerated.
.Pp
The variable name and vendor as returned by
.Fn efi_nextvarname
can be passed to
.Fn efi_getvar
to obtain the value and attribute of the variable.
The buffer that is to contain the value is specified by
.Fa data
and the size of the buffer is given by
.Fa datasize .
The attribute pointed to by
.Fa attrib
consists of the bit values defined by the EFI specification.
.Pp
Variables can be created, modified and deleted using the
.Fn efi_setvar
function.
All new variables must be non-volatile and runtime accessible in
order for the request to succeed.
Note that for runtime accessable variables the boottime accessable bit must
be set as well.
To delete a variable, set
.Fa datasize
to 0.
.Pp
The vendor UUID is used to avoid collisions between variable names of
different vendors.
Variables created for use by
.Fx
should use the
.Dv EFI_FREEBSD_VARIABLE
UUID as defined in the
.In libefi.h
header file.
.Sh RETURN VALUES
Upon successful completion, these functions return 0.
Otherwise, the error number is returned.
These functions will fail if:
.Bl -tag -width Er
.It Bq Er EACCES
Insufficient permissions to access the EFI services.
.It Bq Er EILSEQ
The variable name is not in UTF-8.
.It Bq Er EINVAL
The request has invalid parameters.
.It Bq Er ENOENT
The variable does not exist or no more variables exist.
.It Bq Er ENOMEM
Temporary storage could not be allocated.
.It Bq Er EOVERFLOW
The variable name is too long or the data is too big to fit in
the buffer provided.
.El
.Sh SEE ALSO
.Xr errno 2 ,
.Xr uuid 3
.Sh HISTORY
The
.Nm libefi
library first appeared in
.Fx 9.0
for the ia64 architecture.
.Sh AUTHORS
The
.Nm libefi
library and this manual page were written by
.An Marcel Moolenaar Aq Mt marcel@FreeBSD.org .

57
lib/libefi/libefi.h
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@ -1,57 +0,0 @@
/*-
* Copyright (c) 2010 Marcel Moolenaar
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _LIBEFI_H_
#define _LIBEFI_H_
#include <sys/types.h>
#include <sys/uuid.h>
#include <stddef.h>
/* Attributes. */
#define EFI_ATTR_NV 0x0001 /* Variable stored in NVRAM. */
#define EFI_ATTR_BS 0x0002 /* Boot services accessable. */
#define EFI_ATTR_RT 0x0004 /* Runtime accessable. */
#define EFI_ATTR_HR 0x0008 /* Hardware error record. */
#define EFI_ATTR_WR 0x0010 /* Authenticated write access. */
/* Vendor for architecturally defined variables. */
#define EFI_GLOBAL_VARIABLE \
{0x8be4df61,0x93ca,0x11d2,0xaa,0x0d,{0x00,0xe0,0x98,0x03,0x2b,0x8c}}
/* Vendor for FreeBSD-specific variables. */
#define EFI_FREEBSD_VARIABLE \
{0x13c32014,0x0c9c,0x11df,0xa2,0x38,{0x00,0x17,0xa4,0xab,0x91,0x2d}}
__BEGIN_DECLS
int efi_getvar (char *, uuid_t *, uint32_t *, size_t *, void *);
int efi_nextvarname (size_t *, char *, uuid_t *);
int efi_setvar (char *, uuid_t *, uint32_t, size_t, void *);
__END_DECLS
#endif /* _LIBEFI_H_ */

53
lib/libefivar/Makefile Normal file
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@ -0,0 +1,53 @@
# Copyright 1998 Juniper Networks, Inc.
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
#
# $FreeBSD$
.include <src.opts.mk>
PACKAGE=lib${LIB}
LIB= efivar
SRCS= efivar.c libefivar.c
INCS= efivar.h
SHLIB_MAJOR= 1
MAN= efivar.3
MLINKS+=efivar.3 efi_set_variables_supported.3 \
efivar.3 efi_del_variable.3 \
efivar.3 efi_get_variable.3 \
efivar.3 efi_get_variable_attributes.3 \
efivar.3 efi_get_variable_size.3 \
efivar.3 efi_append_variable.3 \
efivar.3 efi_set_variable.3 \
efivar.3 efi_get_next_variable_name.3 \
efivar.3 efi_str_to_guid.3 \
efivar.3 efi_guid_to_str.3 \
efivar.3 efi_name_to_guid.3 \
efivar.3 efi_guid_to_name.3 \
efivar.3 efi_guid_to_symbol.3 \
efivar.3 libefivar.3
WARNS?= 9
.include <bsd.lib.mk>

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lib/libefivar/efivar.3 Normal file
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@ -0,0 +1,98 @@
.\" Copyright 2016 Netflix, Inc.
.\" All rights reserved.
.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
.\" 1. Redistributions of source code must retain the above copyright
.\" notice, this list of conditions and the following disclaimer.
.\" 2. Redistributions in binary form must reproduce the above copyright
.\" notice, this list of conditions and the following disclaimer in the
.\" documentation and/or other materials provided with the distribution.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
.\" SUCH DAMAGE.
.\"
.\" $FreeBSD$
.\"
.Dd September 14, 2016
.Dt LIBEFIVAR 3
.Os
.Sh NAME
.Nm libefivar
.Nd EFI Non Volatile Variable Suppoert
.Sh SYNOPSIS
.In efivar.h
.Ft int
.Fn efi_append_variable "efi_guid_t guid" "const char *name" "void *data" "size_t data_size" "uint32_t attributes"
.Ft int
.Fn efi_del_variable "efi_guid_t guid" "const char *name"
.Ft int
.Fn efi_get_variable "efi_guid_t guid" "const char *name" "void **data" "ssize_t *data_size" "uint32_t *attributes"
.Ft int
.Fn efi_get_variable_attributes "efi_guid_t guid" "const char *name" "uint32_t *attributes"
.Ft int
.Fn efi_get_variable_size "efi_guid_t guid" "const char *name" "size_t *size"
.Ft int
.Fn efi_get_next_variable_name "efi_guid_t **guid" "char **name"
.Ft int
.Fn efi_guid_to_name "efi_guid_t *guid" "char **name"
.Ft int
.Fn efi_guid_to_symbol "efi_guid_t *guid" "char **symbol"
.Ft int
.Fn efi_guid_to_str "const efi_guid_t *guid" "char **sp"
.Ft int
.Fn efi_name_to_guid "const char *name" "efi_guid_t *guid"
.Ft int
.Fn efi_set_variable "efi_guid_t guid" "const char *name" "void *data" "size_t data_size" "uint32_t attributes"
.Ft int
.Fn efi_str_to_guid "const char *s" "efi_guid_t *guid";
.Ft int
.Fn efi_variables_supported "void";
.Sh DESCRIPTION
The
.Nm
library implements access to EFI Variables via the EFI Runtime
Serivces.
All char * strings are converted to 16-bit UTF strings before passing
them to EFI.
.Pp
.Fn efi_variables_supported
returns non-zero if the current machine supports setting of EFI firmware
variables and the kernel support for doing so is present.
Otherwise zero is returned.
.Pp
.Fn efi_del_variable
deletes the EFI variable selected by
.Dv guid
and
.Dv name .
.Pp
.Fn efi_get_variable
.Fn efi_get_variable_attributes
.Fn efi_get_variable_size
.Fn efi_append_variable
.Fn efi_set_variable
.Fn efi_get_next_variable_name
.Fn efi_str_to_guid
.Fn efi_guid_to_str
.Fn efi_name_to_guid
.Fn efi_guid_to_name
.Fn efi_guid_to_symbol
This function is not actually implemented.
.Sh BUGS
No facilities exist to process the strings as native UTF.
This is a limitation in the Linux libefivar library interface.
.Sh AUTHORS
.An -nosplit
This software was originally written by
.An Warner Losh .

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lib/libefivar/efivar.c Normal file
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@ -0,0 +1,380 @@
/*-
* Copyright (c) 2016 Netflix, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer
* in this position and unchanged.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <efivar.h>
#include <sys/efiio.h>
#include <sys/param.h>
#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "libefivar_int.h"
static int efi_fd = -2;
#define Z { 0, 0, 0, 0, 0, { 0 } }
const efi_guid_t efi_guid_empty = Z;
static struct uuid_table
{
const char *uuid_str;
const char *name;
efi_guid_t guid;
} guid_tbl [] =
{
{ "00000000-0000-0000-0000-000000000000", "zero", Z },
{ "093e0fae-a6c4-4f50-9f1b-d41e2b89c19a", "sha512", Z },
{ "0abba7dc-e516-4167-bbf5-4d9d1c739416", "redhat", Z },
{ "0b6e5233-a65c-44c9-9407-d9ab83bfc8bd", "sha224", Z },
{ "126a762d-5758-4fca-8531-201a7f57f850", "lenovo_boot_menu", Z },
{ "3bd2a492-96c0-4079-b420-fcf98ef103ed", "x509_sha256", Z },
{ "3c5766e8-269c-4e34-aa14-ed776e85b3b6", "rsa2048", Z },
{ "3CC24E96-22C7-41D8-8863-8E39DCDCC2CF", "lenovo", Z },
{ "3f7e615b-0d45-4f80-88dc-26b234958560", "lenovo_diag", Z },
{ "446dbf63-2502-4cda-bcfa-2465d2b0fe9d", "x509_sha512", Z },
{ "4aafd29d-68df-49ee-8aa9-347d375665a7", "pkcs7_cert", Z },
{ "605dab50-e046-4300-abb6-3dd810dd8b23", "shim", Z },
{ "665d3f60-ad3e-4cad-8e26-db46eee9f1b5", "lenovo_rescue", Z },
{ "67f8444f-8743-48f1-a328-1eaab8736080", "rsa2048_sha1", Z },
{ "7076876e-80c2-4ee6-aad2-28b349a6865b", "x509_sha384", Z },
{ "721c8b66-426c-4e86-8e99-3457c46ab0b9", "lenovo_setup", Z },
{ "77fa9abd-0359-4d32-bd60-28f4e78f784b", "microsoft", Z },
{ "7FACC7B6-127F-4E9C-9C5D-080F98994345", "lenovo_2", Z },
{ "826ca512-cf10-4ac9-b187-be01496631bd", "sha1", Z },
{ "82988420-7467-4490-9059-feb448dd1963", "lenovo_me_config", Z },
{ "8be4df61-93ca-11d2-aa0d-00e098032b8c", "global", Z },
{ "a5c059a1-94e4-4aa7-87b5-ab155c2bf072", "x509_cert", Z },
{ "a7717414-c616-4977-9420-844712a735bf", "rsa2048_sha256_cert", Z },
{ "a7d8d9a6-6ab0-4aeb-ad9d-163e59a7a380", "lenovo_diag_splash", Z },
{ "ade9e48f-9cb8-98e6-31af-b4e6009e2fe3", "redhat_2", Z },
{ "bc7838d2-0f82-4d60-8316-c068ee79d25b", "lenovo_msg", Z },
{ "c1c41626-504c-4092-aca9-41f936934328", "sha256", Z },
{ "c57ad6b7-0515-40a8-9d21-551652854e37", "shell", Z },
{ "d719b2cb-3d3a-4596-a3bc-dad00e67656f", "security", Z },
{ "e2b36190-879b-4a3d-ad8d-f2e7bba32784", "rsa2048_sha256", Z },
{ "ff3e5307-9fd0-48c9-85f1-8ad56c701e01", "sha384", Z },
{ "f46ee6f4-4785-43a3-923d-7f786c3c8479", "lenovo_startup_interrupt", Z },
{ "ffffffff-ffff-ffff-ffff-ffffffffffff", "zzignore-this-guid", Z },
};
#undef Z
static void
efi_guid_tbl_compile(void)
{
size_t i;
uint32_t status;
for (i = 0; i < nitems(guid_tbl); i++) {
uuid_from_string(guid_tbl[i].uuid_str, &guid_tbl[i].guid,
&status);
/* all f's is a bad version, so ignore that error */
if (status != uuid_s_ok && status != uuid_s_bad_version)
fprintf(stderr, "Can't convert %s to a uuid for %s: %d\n",
guid_tbl[i].uuid_str, guid_tbl[i].name, (int)status);
}
}
static int
efi_open_dev(void)
{
if (efi_fd == -2)
efi_fd = open("/dev/efidev", O_RDWR);
if (efi_fd < 0)
efi_fd = -1;
else
efi_guid_tbl_compile();
return (efi_fd);
}
static void
efi_var_reset(struct efi_var_ioc *var)
{
var->name = NULL;
var->namesize = 0;
memset(&var->vendor, 0, sizeof(var->vendor));
var->attrib = 0;
var->data = NULL;
var->datasize = 0;
}
static int
rv_to_linux_rv(int rv)
{
if (rv == 0)
rv = 1;
else if (errno == ENOENT) {
rv = 0;
errno = 0;
} else
rv = -errno;
return (rv);
}
int
efi_append_variable(efi_guid_t guid, const char *name,
uint8_t *data, size_t data_size, uint32_t attributes)
{
return efi_set_variable(guid, name, data, data_size,
attributes | EFI_VARIABLE_APPEND_WRITE, 0);
}
int
efi_del_variable(efi_guid_t guid, const char *name)
{
/* data_size of 0 deletes the variable */
return efi_set_variable(guid, name, NULL, 0, 0, 0);
}
int
efi_get_variable(efi_guid_t guid, const char *name,
uint8_t **data, size_t *data_size, uint32_t *attributes)
{
struct efi_var_ioc var;
int rv;
static uint8_t buf[1024*32];
if (efi_open_dev() == -1)
return -1;
efi_var_reset(&var);
rv = libefi_utf8_to_ucs2(name, &var.name, &var.namesize);
if (rv != 0)
goto errout;
var.vendor = guid;
var.data = buf;
var.datasize = sizeof(buf);
rv = ioctl(efi_fd, EFIIOC_VAR_GET, &var);
if (data_size != NULL)
*data_size = var.datasize;
if (data != NULL)
*data = buf;
if (attributes != NULL)
*attributes = var.attrib;
errout:
free(var.name);
return rv_to_linux_rv(rv);
}
int
efi_get_variable_attributes(efi_guid_t guid, const char *name,
uint32_t *attributes)
{
/* Make sure this construct works -- I think it will fail */
return efi_get_variable(guid, name, NULL, NULL, attributes);
}
int
efi_get_variable_size(efi_guid_t guid, const char *name,
size_t *size)
{
/* XXX check to make sure this matches the linux value */
*size = 0;
return efi_get_variable(guid, name, NULL, size, NULL);
}
int
efi_get_next_variable_name(efi_guid_t **guid, char **name)
{
struct efi_var_ioc var;
int rv;
static efi_char *buf;
static size_t buflen = 256 * sizeof(efi_char);
static efi_guid_t retguid;
size_t size;
if (efi_open_dev() == -1)
return -1;
if (buf == NULL)
buf = malloc(buflen);
again:
efi_var_reset(&var);
var.name = buf;
var.namesize = buflen;
if (*name == NULL) {
*buf = 0;
/* GUID zeroed in var_reset */
} else {
rv = libefi_utf8_to_ucs2(*name, &var.name, &size);
if (rv != 0)
goto errout;
var.vendor = **guid;
}
rv = ioctl(efi_fd, EFIIOC_VAR_NEXT, &var);
if (rv == 0 && var.name == NULL) {
/*
* oops, too little space. Try again.
*/
void *new = realloc(buf, buflen);
buflen = var.namesize;
if (new == NULL) {
rv = -1;
errno = ENOMEM;
goto done;
}
buf = new;
goto again;
}
if (rv == 0) {
*name = NULL; /* XXX */
var.name[var.namesize / sizeof(efi_char)] = 0; /* EFI doesn't NUL terminate */
rv = libefi_ucs2_to_utf8(var.name, name);
if (rv != 0)
goto errout;
retguid = var.vendor;
*guid = &retguid;
}
errout:
/* XXX The linux interface expects name to be a static buffer -- fix or leak memory? */
done:
return (rv_to_linux_rv(rv));
}
int
efi_guid_cmp(const efi_guid_t *guid1, const efi_guid_t *guid2)
{
uint32_t status;
return uuid_compare(guid1, guid2, &status);
}
int
efi_guid_is_zero(const efi_guid_t *guid)
{
uint32_t status;
return uuid_is_nil(guid, &status);
}
int
efi_guid_to_name(efi_guid_t *guid, char **name)
{
size_t i;
uint32_t status;
for (i = 0; i < nitems(guid_tbl); i++) {
if (uuid_equal(guid, &guid_tbl[i].guid, &status)) {
*name = strdup(guid_tbl[i].name);
return (0);
}
}
return (efi_guid_to_str(guid, name));
}
int
efi_guid_to_symbol(efi_guid_t *guid __unused, char **symbol __unused)
{
/*
* Unsure what this is used for, efibootmgr doesn't use it.
* Leave unimplemented for now.
*/
return -1;
}
int
efi_guid_to_str(const efi_guid_t *guid, char **sp)
{
uint32_t status;
/* knows efi_guid_t is a typedef of uuid_t */
uuid_to_string(guid, sp, &status);
return (status == uuid_s_ok ? 0 : -1);
}
int
efi_name_to_guid(const char *name, efi_guid_t *guid)
{
size_t i;
for (i = 0; i < nitems(guid_tbl); i++) {
if (strcmp(name, guid_tbl[i].name) == 0) {
*guid = guid_tbl[i].guid;
return (0);
}
}
return (efi_str_to_guid(name, guid));
}
int
efi_set_variable(efi_guid_t guid, const char *name,
uint8_t *data, size_t data_size, uint32_t attributes, mode_t mode __unused)
{
struct efi_var_ioc var;
int rv;
if (efi_open_dev() == -1)
return -1;
efi_var_reset(&var);
rv = libefi_utf8_to_ucs2(name, &var.name, &var.namesize);
if (rv != 0)
goto errout;
var.vendor = guid;
var.data = data;
var.datasize = data_size;
var.attrib = attributes;
rv = ioctl(efi_fd, EFIIOC_VAR_SET, &var);
errout:
free(var.name);
return rv;
}
int
efi_str_to_guid(const char *s, efi_guid_t *guid)
{
uint32_t status;
/* knows efi_guid_t is a typedef of uuid_t */
uuid_from_string(s, guid, &status);
return (status == uuid_s_ok ? 0 : -1);
}
int
efi_variables_supported(void)
{
return efi_open_dev() != -1;
}

121
lib/libefivar/efivar.h Normal file
View File

@ -0,0 +1,121 @@
/*-
* Copyright (c) 2016 Netflix, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer
* in this position and unchanged.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _EFIVAR_H_
#define _EFIVAR_H_
#include <uuid.h>
#include <sys/efi.h>
#include <sys/endian.h>
#include <stdint.h>
/* Shoud these be elsewhere ? */
#define EFI_VARIABLE_NON_VOLATILE 0x00000001
#define EFI_VARIABLE_BOOTSERVICE_ACCESS 0x00000002
#define EFI_VARIABLE_RUNTIME_ACCESS 0x00000004
#define EFI_VARIABLE_HARDWARE_ERROR_RECORD 0x00000008
#define EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS 0x00000010
#define EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS \
0x00000020
#define EFI_VARIABLE_APPEND_WRITE 0x00000040
#if 0 /* todo */
#define EFI_VARIABLE_HAS_AUTH_HEADER
#define EFI_VARIABLE_HAS_SIGNATURE
#endif
typedef uuid_t efi_guid_t;
#if BYTE_ORDER == LITTLE_ENDIAN
#define EFI_GUID(a, b, c, d, e0, e1, e2, e3, e4, e5) \
((efi_guid_t) {(a), (b), (c), (d) >> 8, (d) & 0xff, \
{ (e0), (e1), (e2), (e3), (e4), (e5) }})
#else
#define EFI_GUID(a, b, c, d, e0, e1, e2, e3, e4, e5) \
((efi_guid_t) {(a), (b), (c), (d) & 0xff, (d) >> 8, \
{ (e0), (e1), (e2), (e3), (e4), (e5) }})
#endif
#define EFI_GLOBAL_GUID EFI_GUID(0x8be4df61, 0x93ca, 0x11d2, 0xaa0d, \
0x00, 0xe0, 0x98, 0x03, 0x2b, 0x8c)
int efi_append_variable(efi_guid_t guid, const char *name,
uint8_t *data, size_t data_size, uint32_t attributes);
int efi_del_variable(efi_guid_t guid, const char *name);
int efi_get_variable(efi_guid_t guid, const char *name,
uint8_t **data, size_t *data_size, uint32_t *attributes);
int efi_get_variable_attributes(efi_guid_t guid, const char *name,
uint32_t *attributes);
int efi_get_variable_size(efi_guid_t guid, const char *name, size_t *size);
int efi_get_next_variable_name(efi_guid_t **guid, char **name);
int efi_guid_cmp(const efi_guid_t *guid1, const efi_guid_t *guid2);
int efi_guid_is_zero(const efi_guid_t *guid1);
int efi_guid_to_name(efi_guid_t *guid, char **name);
int efi_guid_to_symbol(efi_guid_t *guid, char **symbol);
int efi_guid_to_str(const efi_guid_t *guid, char **sp);
int efi_name_to_guid(const char *name, efi_guid_t *guid);
int efi_set_variable(efi_guid_t guid, const char *name,
uint8_t *data, size_t data_size, uint32_t attributes, mode_t mode);
int efi_str_to_guid(const char *s, efi_guid_t *guid);
int efi_variables_supported(void);
extern const efi_guid_t efi_guid_empty;
/* Stubs that are expected, but aren't really used */
static inline int
efi_error_get(unsigned int n __unused, char ** const fn __unused,
char ** const func __unused, int *line __unused,
char ** const msg __unused, int *err __unused)
{
return 0;
}
static inline int
efi_error_set(const char *fn __unused, const char *func __unused,
int line __unused, int err __unused, const char *fmt __unused, ...)
{
return 0;
}
static inline void
efi_error_clear(void)
{
}
static inline int
efi_error(const char *fmt __unused, ...)
{
return 0;
}
static inline int
efi_error_val(int val __unused, const char *fmt __unused, ...)
{
return 0;
}
#endif /* _EFIVAR_H_ */

128
lib/libefi/libefi.c → lib/libefivar/libefivar.c
View File

@ -27,86 +27,105 @@
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/ioctl.h>
#include <sys/types.h>
#include <fcntl.h>
#include <errno.h>
#include <stddef.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/efi.h>
#include <machine/efi.h>
#include "libefi_int.h"
#include "libefivar_int.h"
static int __iofd = -1;
#include <stdio.h>
static void
iodev_fd_close(void)
/*
* If nm were converted to utf8, what what would strlen
* return on the resulting string?
*/
static size_t
utf8_len_of_ucs2(const efi_char *nm)
{
size_t len;
efi_char c;
close(__iofd);
}
len = 0;
while (*nm) {
c = *nm++;
if (c > 0x7ff)
len += 3;
else if (c > 0x7f)
len += 2;
else
len++;
}
static int
iodev_fd(int *fd)
{
*fd = __iofd;
if (__iofd != -1)
return (0);
__iofd = open("/dev/io", O_RDWR);
if (__iofd == -1)
return (errno);
atexit(iodev_fd_close);
*fd = __iofd;
return (0);
return (len);
}
int
libefi_ucs2_to_utf8(u_short *nm, size_t *szp, char *name)
libefi_ucs2_to_utf8(const efi_char *nm, char **name)
{
size_t len, sz;
u_short c;
efi_char c;
char *cp;
int freeit = *name == NULL;
sz = utf8_len_of_ucs2(nm) + 1;
len = 0;
sz = *szp;
if (*name != NULL)
cp = *name;
else
cp = *name = malloc(sz);
if (*name == NULL)
return (ENOMEM);
while (*nm) {
c = *nm++;
if (c > 0x7ff) {
if (len++ < sz)
*name++ = 0xE0 | (c >> 12);
*cp++ = (char)(0xE0 | (c >> 12));
if (len++ < sz)
*name++ = 0x80 | ((c >> 6) & 0x3f);
*cp++ = (char)(0x80 | ((c >> 6) & 0x3f));
if (len++ < sz)
*name++ = 0x80 | (c & 0x3f);
*cp++ = (char)(0x80 | (c & 0x3f));
} else if (c > 0x7f) {
if (len++ < sz)
*name++ = 0xC0 | ((c >> 6) & 0x1f);
*cp++ = (char)(0xC0 | ((c >> 6) & 0x1f));
if (len++ < sz)
*name++ = 0x80 | (c & 0x3f);
*cp++ = (char)(0x80 | (c & 0x3f));
} else {
if (len++ < sz)
*name++ = (c & 0x7f);
*cp++ = (char)(c & 0x7f);
}
}
if (len++ < sz)
*name++ = 0;
*szp = len;
return ((len <= sz) ? 0 : EOVERFLOW);
if (len >= sz) {
/* Absent bugs, we'll never return EOVERFLOW */
if (freeit)
free(*name);
return (EOVERFLOW);
}
*cp++ = '\0';
return (0);
}
int
libefi_utf8_to_ucs2(char *name, size_t *szp, u_short **nmp)
libefi_utf8_to_ucs2(const char *name, efi_char **nmp, size_t *len)
{
u_short *nm;
efi_char *nm;
size_t sz;
uint32_t ucs4;
int c, bytes;
int freeit = *nmp == NULL;
*szp = sz = (*szp == 0) ? strlen(name) * 2 + 2 : *szp;
*nmp = nm = malloc(sz);
sz = strlen(name) * 2 + 2;
if (*nmp == NULL)
*nmp = malloc(sz);
nm = *nmp;
*len = sz;
ucs4 = 0;
bytes = 0;
@ -119,7 +138,8 @@ libefi_utf8_to_ucs2(char *name, size_t *szp, u_short **nmp)
if ((c & 0xc0) != 0x80) {
/* Initial characters. */
if (bytes != 0) {
free(nm);
if (freeit)
free(nm);
return (EILSEQ);
}
if ((c & 0xf8) == 0xf0) {
@ -141,36 +161,28 @@ libefi_utf8_to_ucs2(char *name, size_t *szp, u_short **nmp)
ucs4 = (ucs4 << 6) + (c & 0x3f);
bytes--;
} else if (bytes == 0) {
free(nm);
if (freeit)
free(nm);
return (EILSEQ);
}
}
if (bytes == 0) {
if (ucs4 > 0xffff) {
free(nm);
if (freeit)
free(nm);
return (EILSEQ);
}
*nm++ = (u_short)ucs4;
*nm++ = (efi_char)ucs4;
sz -= 2;
}
}
if (sz < 2) {
free(nm);
if (freeit)
free(nm);
return (EDOOFUS);
}
sz -= 2;
*nm = 0;
*len -= sz;
return (0);
}
int
libefi_efivar(struct iodev_efivar_req *req)
{
int error, fd;
error = iodev_fd(&fd);
if (!error)
error = (ioctl(fd, IODEV_EFIVAR, req) == -1) ? errno : 0;
if (!error)
error = req->result;
return (error);
}

9
lib/libefi/libefi_int.h → lib/libefivar/libefivar_int.h
View File

@ -29,12 +29,7 @@
#ifndef _LIBEFI_INT_H_
#define _LIBEFI_INT_H_
#include <sys/errno.h>
#include <machine/iodev.h>
int libefi_ucs2_to_utf8(u_short *, size_t *, char *);
int libefi_utf8_to_ucs2(char *, size_t *, u_short **);
int libefi_efivar(struct iodev_efivar_req *);
int libefi_ucs2_to_utf8(const efi_char *, char **);
int libefi_utf8_to_ucs2(const char *, efi_char **, size_t *);
#endif /* _LIBEFI_INT_H_ */

1
share/mk/bsd.libnames.mk
View File

@ -59,6 +59,7 @@ LIBDPV?= ${DESTDIR}${LIBDIR}/libdpv.a
LIBDTRACE?= ${DESTDIR}${LIBDIR}/libdtrace.a
LIBDWARF?= ${DESTDIR}${LIBDIR}/libdwarf.a
LIBEDIT?= ${DESTDIR}${LIBDIR}/libedit.a
LIBEFIVAR?= ${DESTDIR}${LIBDIR}/libefivar.a
LIBELF?= ${DESTDIR}${LIBDIR}/libelf.a
LIBEXECINFO?= ${DESTDIR}${LIBDIR}/libexecinfo.a
LIBFETCH?= ${DESTDIR}${LIBDIR}/libfetch.a

1
share/mk/src.libnames.mk
View File

@ -91,6 +91,7 @@ _LIBRARIES= \
dtrace \
dwarf \
edit \
efivar \
elf \
execinfo \
fetch \

4
share/mk/src.opts.mk
View File

@ -82,6 +82,7 @@ __DEFAULT_YES_OPTIONS = \
DYNAMICROOT \
ED_CRYPTO \
EE \
EFI \
ELFTOOLCHAIN_BOOTSTRAP \
EXAMPLES \
FDT \
@ -263,6 +264,9 @@ BROKEN_OPTIONS+=LIBSOFT
.if ${__T:Mmips*}
BROKEN_OPTIONS+=SSP
.endif
.if ${__T:Mmips*} || ${__T:Mpowerpc*} || ${__T:Msparc64} || ${__T:Mriscv*}
BROKEN_OPTIONS+=EFI
.endif
.include <bsd.mkopt.mk>