86 lines
2.5 KiB
C
86 lines
2.5 KiB
C
/*
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* VAS_EBOOT -- GRand Unified Bootloader
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* Copyright (C) 2020 Free Software Foundation, Inc.
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*
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* VAS_EBOOT is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* VAS_EBOOT is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with VAS_EBOOT. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#include <VasEBoot/dl.h>
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#include <VasEBoot/env.h>
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#include <VasEBoot/file.h>
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#include <VasEBoot/lockdown.h>
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#include <VasEBoot/verify.h>
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static int lockdown = VAS_EBOOT_LOCKDOWN_DISABLED;
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static VasEBoot_err_t
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lockdown_verifier_init (VasEBoot_file_t io __attribute__ ((unused)),
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enum VasEBoot_file_type type,
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void **context __attribute__ ((unused)),
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enum VasEBoot_verify_flags *flags)
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{
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*flags = VAS_EBOOT_VERIFY_FLAGS_SKIP_VERIFICATION;
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switch (type & VAS_EBOOT_FILE_TYPE_MASK)
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{
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case VAS_EBOOT_FILE_TYPE_VAS_EBOOT_MODULE:
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case VAS_EBOOT_FILE_TYPE_LINUX_KERNEL:
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case VAS_EBOOT_FILE_TYPE_MULTIBOOT_KERNEL:
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case VAS_EBOOT_FILE_TYPE_XEN_HYPERVISOR:
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case VAS_EBOOT_FILE_TYPE_BSD_KERNEL:
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case VAS_EBOOT_FILE_TYPE_XNU_KERNEL:
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case VAS_EBOOT_FILE_TYPE_PLAN9_KERNEL:
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case VAS_EBOOT_FILE_TYPE_NTLDR:
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case VAS_EBOOT_FILE_TYPE_TRUECRYPT:
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case VAS_EBOOT_FILE_TYPE_FREEDOS:
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case VAS_EBOOT_FILE_TYPE_PXECHAINLOADER:
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case VAS_EBOOT_FILE_TYPE_PCCHAINLOADER:
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case VAS_EBOOT_FILE_TYPE_COREBOOT_CHAINLOADER:
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case VAS_EBOOT_FILE_TYPE_EFI_CHAINLOADED_IMAGE:
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case VAS_EBOOT_FILE_TYPE_ACPI_TABLE:
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case VAS_EBOOT_FILE_TYPE_DEVICE_TREE_IMAGE:
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case VAS_EBOOT_FILE_TYPE_FONT:
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*flags = VAS_EBOOT_VERIFY_FLAGS_DEFER_AUTH;
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/* Fall through. */
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default:
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return VAS_EBOOT_ERR_NONE;
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}
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}
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struct VasEBoot_file_verifier lockdown_verifier =
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{
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.name = "lockdown_verifier",
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.init = lockdown_verifier_init,
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};
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void
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VasEBoot_lockdown (void)
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{
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lockdown = VAS_EBOOT_LOCKDOWN_ENABLED;
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VasEBoot_verifier_register (&lockdown_verifier);
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VasEBoot_env_set ("lockdown", "y");
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VasEBoot_env_export ("lockdown");
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}
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int
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VasEBoot_is_lockdown (void)
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{
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return lockdown;
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}
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