1 /* Signature verification 2 * 3 * Copyright (C) 2014 Red Hat, Inc. All Rights Reserved. 4 * Written by David Howells (dhowells@redhat.com) 5 * 6 * This program is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU General Public Licence 8 * as published by the Free Software Foundation; either version 9 * 2 of the Licence, or (at your option) any later version. 10 */ 11 12 #ifndef _LINUX_VERIFICATION_H 13 #define _LINUX_VERIFICATION_H 14 15 /* 16 * The use to which an asymmetric key is being put. 17 */ 18 enum key_being_used_for { 19 VERIFYING_MODULE_SIGNATURE, 20 VERIFYING_FIRMWARE_SIGNATURE, 21 VERIFYING_KEXEC_PE_SIGNATURE, 22 VERIFYING_KEY_SIGNATURE, 23 VERIFYING_KEY_SELF_SIGNATURE, 24 VERIFYING_UNSPECIFIED_SIGNATURE, 25 NR__KEY_BEING_USED_FOR 26 }; 27 extern const char *const key_being_used_for[NR__KEY_BEING_USED_FOR]; 28 29 #ifdef CONFIG_SYSTEM_DATA_VERIFICATION 30 31 struct key; 32 33 extern int verify_pkcs7_signature(const void *data, size_t len, 34 const void *raw_pkcs7, size_t pkcs7_len, 35 struct key *trusted_keys, 36 enum key_being_used_for usage, 37 int (*view_content)(void *ctx, 38 const void *data, size_t len, 39 size_t asn1hdrlen), 40 void *ctx); 41 42 #ifdef CONFIG_SIGNED_PE_FILE_VERIFICATION 43 extern int verify_pefile_signature(const void *pebuf, unsigned pelen, 44 struct key *trusted_keys, 45 enum key_being_used_for usage); 46 #endif 47 48 #endif /* CONFIG_SYSTEM_DATA_VERIFICATION */ 49 #endif /* _LINUX_VERIFY_PEFILE_H */ 50