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/*-
* Copyright (c) 2014 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.
*
* $FreeBSD$
*/
/*******************************************************************
** e f i . c
** Additional words for EFI
**
*******************************************************************/
#ifdef TESTMAIN
#include <sys/types.h>
#include <sys/stat.h>
#include <dirent.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#else
#include <stand.h>
#endif
#include "bootstrap.h"
#include <string.h>
#include "ficl.h"
/*
* FreeBSD's loader interaction words and extras
*
* efi-setenv ( value n name n guid n attr -- 0 | -1)
* efi-getenv ( guid n addr n -- addr' n' | -1 )
* efi-unsetenv ( name n guid n'' -- )
*/
/*
* efi-setenv
* efi-setenv ( value n name n guid n attr -- 0 | -1)
*
* Set environment variables using the SetVariable EFI runtime service.
*
* Value and guid are passed through in binary form (so guid needs to be
* converted to binary form from its string form). Name is converted from
* ASCII to CHAR16. Since ficl doesn't have support for internationalization,
* there's no native CHAR16 interface provided.
*
* attr is an int in the bitmask of the following attributes for this variable.
*
* 1 Non volatile
* 2 Boot service access
* 4 Run time access
* (corresponding to the same bits in the UEFI spec).
*/
void
ficlEfiSetenv(FICL_VM *pVM)
{
#ifndef TESTMAIN
char *value, *guid;
CHAR16 *name
int i;
#endif
char *namep, *valuep, *guidp;
int names, values, guids, attr;
#if FICL_ROBUST > 1
vmCheckStack(pVM, 6, 0);
#endif
attr = stackPopINT(pVM->pStack);
guids = stackPopINT(pVM->pStack);
guidp = (char*)stackPopPtr(pVM->pStack);
names = stackPopINT(pVM->pStack);
namep = (char*)stackPopPtr(pVM->pStack);
values = stackPopINT(pVM->pStack);
valuep = (char*)stackPopPtr(pVM->pStack);
#ifndef TESTMAIN
guid = (char*)ficlMalloc(guids);
if (guid != NULL)
vmThrowErr(pVM, "Error: out of memory");
memcpy(guid, guidp, guids);
name = (char*)ficlMalloc((names + 1) * sizeof(CHAR16));
if (name == NULL)
vmThrowErr(pVM, "Error: out of memory");
for (i = 0; i < names; i++)
name[i] = namep[i];
name[names] = (CHAR16)0;
value = (char*)ficlMalloc(values + 1);
if (value != NULL)
vmThrowErr(pVM, "Error: out of memory");
memcpy(value, valuep, values);
status = efi_set_variable(name, guid, attr, value);
if (status == EFI_SUCCESS)
stackPushINT(pVM->pStack, 0);
else
stackPushINT(pVM->pStack, -1);
ficlFree(name);
ficlFree(value);
ficlFree(guid);
#endif
return;
}
void
ficlEfiGetenv(FICL_VM *pVM)
{
#ifndef TESTMAIN
char *name, *value;
#endif
char *namep;
int names;
#if FICL_ROBUST > 1
vmCheckStack(pVM, 2, 2);
#endif
names = stackPopINT(pVM->pStack);
namep = (char*) stackPopPtr(pVM->pStack);
#ifndef TESTMAIN
name = (char*) ficlMalloc(names+1);
if (!name)
vmThrowErr(pVM, "Error: out of memory");
strncpy(name, namep, names);
name[names] = '\0';
value = getenv(name);
ficlFree(name);
if(value != NULL) {
stackPushPtr(pVM->pStack, value);
stackPushINT(pVM->pStack, strlen(value));
} else
#endif
stackPushINT(pVM->pStack, -1);
return;
}
void
ficlEfiUnsetenv(FICL_VM *pVM)
{
#ifndef TESTMAIN
char *name;
#endif
char *namep;
int names;
#if FICL_ROBUST > 1
vmCheckStack(pVM, 2, 0);
#endif
names = stackPopINT(pVM->pStack);
namep = (char*) stackPopPtr(pVM->pStack);
#ifndef TESTMAIN
name = (char*) ficlMalloc(names+1);
if (!name)
vmThrowErr(pVM, "Error: out of memory");
strncpy(name, namep, names);
name[names] = '\0';
unsetenv(name);
ficlFree(name);
#endif
return;
}
/**************************************************************************
** Build FreeBSD platform extensions into the system dictionary
**************************************************************************/
void ficlEfiCompilePlatform(FICL_SYSTEM *pSys)
{
FICL_DICT *dp = pSys->dp;
assert (dp);
dictAppendWord(dp, "efi-setenv", ficlEfiSetenv, FW_DEFAULT);
dictAppendWord(dp, "efi-getenv", ficlEfiGetenv, FW_DEFAULT);
dictAppendWord(dp, "efi-unsetenv", ficlEfiUnsetenv, FW_DEFAULT);
return;
}
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