projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| b4d0d230 | 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
| e68503bd DH |
2 | /* Signature verification |
| 3 | * | |
| 4 | * Copyright (C) 2014 Red Hat, Inc. All Rights Reserved. | |
| 5 | * Written by David Howells (dhowells@redhat.com) | |
| e68503bd DH |
6 | */ |
| 7 | ||
| 8 | #ifndef _LINUX_VERIFICATION_H | |
| 9 | #define _LINUX_VERIFICATION_H | |
| 10 | ||
| f14602ca MS |
11 | #include <linux/types.h> |
| 12 | ||
| 817aef26 YS |
13 | /* |
| 14 | * Indicate that both builtin trusted keys and secondary trusted keys | |
| 15 | * should be used. | |
| 16 | */ | |
| 17 | #define VERIFY_USE_SECONDARY_KEYRING ((struct key *)1UL) | |
| 278311e4 | 18 | #define VERIFY_USE_PLATFORM_KEYRING ((struct key *)2UL) |
| 817aef26 | 19 | |
| f3cf4134 RS |
20 | static inline int system_keyring_id_check(u64 id) |
| 21 | { | |
| 22 | if (id > (unsigned long)VERIFY_USE_PLATFORM_KEYRING) | |
| 23 | return -EINVAL; | |
| 24 | ||
| 25 | return 0; | |
| 26 | } | |
| 27 | ||
| e68503bd DH |
28 | /* |
| 29 | * The use to which an asymmetric key is being put. | |
| 30 | */ | |
| 31 | enum key_being_used_for { | |
| 32 | VERIFYING_MODULE_SIGNATURE, | |
| 33 | VERIFYING_FIRMWARE_SIGNATURE, | |
| 34 | VERIFYING_KEXEC_PE_SIGNATURE, | |
| 35 | VERIFYING_KEY_SIGNATURE, | |
| 36 | VERIFYING_KEY_SELF_SIGNATURE, | |
| 37 | VERIFYING_UNSPECIFIED_SIGNATURE, | |
| 38 | NR__KEY_BEING_USED_FOR | |
| 39 | }; | |
| 40 | extern const char *const key_being_used_for[NR__KEY_BEING_USED_FOR]; | |
| 41 | ||
| 42 | #ifdef CONFIG_SYSTEM_DATA_VERIFICATION | |
| 43 | ||
| 44 | struct key; | |
| 2a7bf671 | 45 | struct pkcs7_message; |
| e68503bd DH |
46 | |
| 47 | extern int verify_pkcs7_signature(const void *data, size_t len, | |
| 48 | const void *raw_pkcs7, size_t pkcs7_len, | |
| 49 | struct key *trusted_keys, | |
| e68503bd DH |
50 | enum key_being_used_for usage, |
| 51 | int (*view_content)(void *ctx, | |
| 52 | const void *data, size_t len, | |
| 53 | size_t asn1hdrlen), | |
| 54 | void *ctx); | |
| 2a7bf671 TJB |
55 | extern int verify_pkcs7_message_sig(const void *data, size_t len, |
| 56 | struct pkcs7_message *pkcs7, | |
| 57 | struct key *trusted_keys, | |
| 58 | enum key_being_used_for usage, | |
| 59 | int (*view_content)(void *ctx, | |
| 60 | const void *data, | |
| 61 | size_t len, | |
| 62 | size_t asn1hdrlen), | |
| 63 | void *ctx); | |
| e68503bd DH |
64 | |
| 65 | #ifdef CONFIG_SIGNED_PE_FILE_VERIFICATION | |
| 66 | extern int verify_pefile_signature(const void *pebuf, unsigned pelen, | |
| 67 | struct key *trusted_keys, | |
| 68 | enum key_being_used_for usage); | |
| 69 | #endif | |
| 70 | ||
| 71 | #endif /* CONFIG_SYSTEM_DATA_VERIFICATION */ | |
| 72 | #endif /* _LINUX_VERIFY_PEFILE_H */ |