diff options
Diffstat (limited to 'lib/libefi')
| -rw-r--r-- | lib/libefi/Makefile | 22 | ||||
| -rw-r--r-- | lib/libefi/efi_getvar.c | 68 | ||||
| -rw-r--r-- | lib/libefi/efi_nextvarname.c | 66 | ||||
| -rw-r--r-- | lib/libefi/efi_setvar.c | 66 | ||||
| -rw-r--r-- | lib/libefi/libefi.3 | 136 | ||||
| -rw-r--r-- | lib/libefi/libefi.c | 176 | ||||
| -rw-r--r-- | lib/libefi/libefi.h | 57 | ||||
| -rw-r--r-- | lib/libefi/libefi_int.h | 40 |
8 files changed, 631 insertions, 0 deletions
diff --git a/lib/libefi/Makefile b/lib/libefi/Makefile new file mode 100644 index 0000000..16aa3e7 --- /dev/null +++ b/lib/libefi/Makefile @@ -0,0 +1,22 @@ +# $FreeBSD$ + +.include <bsd.own.mk> + +LIB= efi +SHLIB_MAJOR= 1 + +SRCS= libefi.c \ + efi_getvar.c \ + efi_nextvarname.c \ + efi_setvar.c + +CFLAGS+= -I${.CURDIR} + +INCS= libefi.h + +MAN+= libefi.3 +MLINKS+=libefi.3 efi_getvar.3 \ + libefi.3 efi_nextvarname.3 \ + libefi.3 efi_setvar.3 + +.include <bsd.lib.mk> diff --git a/lib/libefi/efi_getvar.c b/lib/libefi/efi_getvar.c new file mode 100644 index 0000000..97e842e --- /dev/null +++ b/lib/libefi/efi_getvar.c @@ -0,0 +1,68 @@ +/*- + * Copyright (c) 2010 Marcel Moolenaar + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <sys/cdefs.h> +__FBSDID("$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); +} diff --git a/lib/libefi/efi_nextvarname.c b/lib/libefi/efi_nextvarname.c new file mode 100644 index 0000000..e07659f --- /dev/null +++ b/lib/libefi/efi_nextvarname.c @@ -0,0 +1,66 @@ +/*- + * 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); +} diff --git a/lib/libefi/efi_setvar.c b/lib/libefi/efi_setvar.c new file mode 100644 index 0000000..be43694 --- /dev/null +++ b/lib/libefi/efi_setvar.c @@ -0,0 +1,66 @@ +/*- + * 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); +} diff --git a/lib/libefi/libefi.3 b/lib/libefi/libefi.3 new file mode 100644 index 0000000..9c6999e --- /dev/null +++ b/lib/libefi/libefi.3 @@ -0,0 +1,136 @@ +.\"- +.\" 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 Januari 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 +.Fn efi_getvar "char *name" "uuid_t *vendor" "uint32_t *attrib" \ + "size_t *datasize" "void *data" +.Ft int +.Fn efi_nextvarname "size_t *namesize" "char *name" "uuid_t *vendor" +.Ft int +.Fn efi_setvar "char *name" "uuid_t *vendor" "uint32_t attrib" \ + "size_t datasize" "void *data" +.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 +.Nm namesize +parameter needs to be set to the size of the buffer pointed to by +.Nm name . +On return, +.Nm namesize +is set to the length of the variable name (including the terminating '\\0') +irrespective of whether the buffer was big enough. +The buffer pointed to by +.Nm name +contains the full or partial variable name on return. +Only on successful completion of the request is the +.Nm 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 +.Nm data +and the size of the buffer is given by +.Nm datasize . +The attribute pointed to by +.Nm 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 accessable 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 +.Nm datasize +to 0. +.Pp +The vendor UUID is used to avoid collisions between variable names of +different vendors. +Variables created for use by FreeBSD should use the +.Nm EFI_FREEBSD_VENDOR +UUID as defined in the +.Nm libefi +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 +for the ia64 architecture. +.Sh AUTHORS +The +.Nm libefi +library and corresponding manual page were written by +.An Marcel Moolenaar Aq marcel@FreeBSD.org . diff --git a/lib/libefi/libefi.c b/lib/libefi/libefi.c new file mode 100644 index 0000000..c65784f --- /dev/null +++ b/lib/libefi/libefi.c @@ -0,0 +1,176 @@ +/*- + * 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 <sys/ioctl.h> +#include <sys/types.h> +#include <fcntl.h> +#include <stddef.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> + +#include "libefi_int.h" + +static int __iofd = -1; + +static void +iodev_fd_close(void) +{ + + close(__iofd); +} + +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); +} + +int +libefi_ucs2_to_utf8(u_short *nm, size_t *szp, char *name) +{ + size_t len, sz; + u_short c; + + len = 0; + sz = *szp; + while (*nm) { + c = *nm++; + if (c > 0x7ff) { + if (len++ < sz) + *name++ = 0xE0 | (c >> 12); + if (len++ < sz) + *name++ = 0x80 | ((c >> 6) & 0x3f); + if (len++ < sz) + *name++ = 0x80 | (c & 0x3f); + } else if (c > 0x7f) { + if (len++ < sz) + *name++ = 0xC0 | ((c >> 6) & 0x1f); + if (len++ < sz) + *name++ = 0x80 | (c & 0x3f); + } else { + if (len++ < sz) + *name++ = (c & 0x7f); + } + } + if (len++ < sz) + *name++ = 0; + + *szp = len; + return ((len <= sz) ? 0 : EOVERFLOW); +} + +int +libefi_utf8_to_ucs2(char *name, size_t *szp, u_short **nmp) +{ + u_short *nm; + size_t sz; + uint32_t ucs4; + int c, bytes; + + *szp = sz = (*szp == 0) ? strlen(name) * 2 + 2 : *szp; + *nmp = nm = malloc(sz); + + ucs4 = 0; + bytes = 0; + while (sz > 1 && *name != '\0') { + c = *name++; + /* + * Conditionalize on the two major character types: + * initial and followup characters. + */ + if ((c & 0xc0) != 0x80) { + /* Initial characters. */ + if (bytes != 0) { + free(nm); + return (EILSEQ); + } + if ((c & 0xf8) == 0xf0) { + ucs4 = c & 0x07; + bytes = 3; + } else if ((c & 0xf0) == 0xe0) { + ucs4 = c & 0x0f; + bytes = 2; + } else if ((c & 0xe0) == 0xc0) { + ucs4 = c & 0x1f; + bytes = 1; + } else { + ucs4 = c & 0x7f; + bytes = 0; + } + } else { + /* Followup characters. */ + if (bytes > 0) { + ucs4 = (ucs4 << 6) + (c & 0x3f); + bytes--; + } else if (bytes == 0) { + free(nm); + return (EILSEQ); + } + } + if (bytes == 0) { + if (ucs4 > 0xffff) { + free(nm); + return (EILSEQ); + } + *nm++ = (u_short)ucs4; + sz -= 2; + } + } + if (sz < 2) { + free(nm); + return (EDOOFUS); + } + *nm = 0; + 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); +} diff --git a/lib/libefi/libefi.h b/lib/libefi/libefi.h new file mode 100644 index 0000000..56d18ac --- /dev/null +++ b/lib/libefi/libefi.h @@ -0,0 +1,57 @@ +/*- + * 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_ */ diff --git a/lib/libefi/libefi_int.h b/lib/libefi/libefi_int.h new file mode 100644 index 0000000..28ee822 --- /dev/null +++ b/lib/libefi/libefi_int.h @@ -0,0 +1,40 @@ +/*- + * 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_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 *); + +#endif /* _LIBEFI_INT_H_ */ |
