89 lines
2.7 KiB
C
89 lines
2.7 KiB
C
/*
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* VAS_EBOOT -- GRand Unified Bootloader
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* Copyright (C) 2017 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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#ifndef VAS_EBOOT_VERIFY_HEADER
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#define VAS_EBOOT_VERIFY_HEADER 1
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#include <VasEBoot/file.h>
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#include <VasEBoot/list.h>
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enum VasEBoot_verify_flags
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{
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VAS_EBOOT_VERIFY_FLAGS_NONE = 0,
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VAS_EBOOT_VERIFY_FLAGS_SKIP_VERIFICATION = 1,
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VAS_EBOOT_VERIFY_FLAGS_SINGLE_CHUNK = 2,
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/* Defer verification to another authority. */
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VAS_EBOOT_VERIFY_FLAGS_DEFER_AUTH = 4
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};
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enum VasEBoot_verify_string_type
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{
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VAS_EBOOT_VERIFY_KERNEL_CMDLINE,
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VAS_EBOOT_VERIFY_MODULE_CMDLINE,
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VAS_EBOOT_VERIFY_COMMAND,
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};
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struct VasEBoot_file_verifier
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{
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struct VasEBoot_file_verifier *next;
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struct VasEBoot_file_verifier **prev;
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const char *name;
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/*
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* Check if file needs to be verified and set up context.
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* init/read/fini is structured in the same way as hash interface.
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*/
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VasEBoot_err_t (*init) (VasEBoot_file_t io, enum VasEBoot_file_type type,
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void **context, enum VasEBoot_verify_flags *flags);
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/*
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* Right now we pass the whole file in one call but it may
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* change in the future. If you insist on single buffer you
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* need to set VAS_EBOOT_VERIFY_FLAGS_SINGLE_CHUNK in verify_flags.
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*/
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VasEBoot_err_t (*write) (void *context, void *buf, VasEBoot_size_t size);
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VasEBoot_err_t (*fini) (void *context);
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void (*close) (void *context);
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VasEBoot_err_t (*verify_string) (char *str, enum VasEBoot_verify_string_type type);
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};
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extern struct VasEBoot_file_verifier *EXPORT_VAR (VasEBoot_file_verifiers);
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extern void
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VasEBoot_verifiers_init (void);
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static inline void
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VasEBoot_verifier_register (struct VasEBoot_file_verifier *ver)
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{
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VasEBoot_list_push (VAS_EBOOT_AS_LIST_P (&VasEBoot_file_verifiers), VAS_EBOOT_AS_LIST (ver));
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}
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static inline void
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VasEBoot_verifier_unregister (struct VasEBoot_file_verifier *ver)
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{
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VasEBoot_list_remove (VAS_EBOOT_AS_LIST (ver));
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}
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extern VasEBoot_err_t
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EXPORT_FUNC (VasEBoot_verify_string) (char *str, enum VasEBoot_verify_string_type type);
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#endif /* ! VAS_EBOOT_VERIFY_HEADER */
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