105 lines
2.8 KiB
C
105 lines
2.8 KiB
C
/*
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* Wrappers for backward compatibility with old Kernels.
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*
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* Copyright (C) 2019 Samsung Electronics, Inc.
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*
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* Egor Uleyskiy, <e.uleyskiy@samsung.com>
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*
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* This software is licensed under the terms of the GNU General Public
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* License version 2, as published by the Free Software Foundation, and
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* may be copied, distributed, and modified under those terms.
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*
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* This program 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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#ifndef __LINUX_FIVE_CRYPTO_COMP_H
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#define __LINUX_FIVE_CRYPTO_COMP_H
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#include <linux/version.h>
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#include <crypto/public_key.h>
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#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 6, 0)
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static inline int five_verify_signature(struct key *key,
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struct public_key_signature *pks,
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struct five_cert *cert,
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struct five_cert_header *header)
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{
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int ret = -ENOMEM;
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pks->pkey_hash_algo = header->hash_algo;
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pks->nr_mpi = 1;
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pks->rsa.s = mpi_read_raw_data(cert->signature->value,
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cert->signature->length);
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if (pks->rsa.s)
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ret = verify_signature(key, pks);
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mpi_free(pks->rsa.s);
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return ret;
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}
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#elif LINUX_VERSION_CODE < KERNEL_VERSION(4, 20, 0)
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static inline int five_verify_signature(struct key *key,
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struct public_key_signature *pks,
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struct five_cert *cert,
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struct five_cert_header *header)
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{
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int ret = -ENOMEM;
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pks->pkey_algo = "rsa";
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pks->hash_algo = hash_algo_name[header->hash_algo];
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pks->s = cert->signature->value;
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pks->s_size = cert->signature->length;
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ret = verify_signature(key, pks);
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return ret;
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}
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#else
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static inline int five_verify_signature(struct key *key,
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struct public_key_signature *pks,
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struct five_cert *cert,
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struct five_cert_header *header)
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{
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int ret = -ENOMEM;
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pks->pkey_algo = "rsa";
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pks->encoding = "pkcs1";
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pks->hash_algo = hash_algo_name[header->hash_algo];
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pks->s = cert->signature->value;
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pks->s_size = cert->signature->length;
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ret = verify_signature(key, pks);
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return ret;
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}
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#endif
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#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 7, 0)
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static inline struct key *five_keyring_alloc(const char *description,
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kuid_t uid, kgid_t gid, const struct cred *cred,
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key_perm_t perm, unsigned long flags)
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{
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return keyring_alloc(description, uid, gid, cred,
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perm, flags, NULL);
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}
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#else
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static inline struct key *five_keyring_alloc(const char *description,
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kuid_t uid, kgid_t gid, const struct cred *cred,
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key_perm_t perm, unsigned long flags)
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{
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return keyring_alloc(description, uid, gid, cred,
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perm, flags, NULL, NULL);
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}
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#endif
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#if LINUX_VERSION_CODE < KERNEL_VERSION(5, 3, 0)
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#define keyring_search(keyring, type, desc, recurse) \
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keyring_search(keyring, type, desc)
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#endif
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#endif /* __LINUX_FIVE_CRYPTO_COMP_H */
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