diff options
Diffstat (limited to 'security/integrity/integrity.h')
| -rw-r--r-- | security/integrity/integrity.h | 40 |
1 files changed, 36 insertions, 4 deletions
diff --git a/security/integrity/integrity.h b/security/integrity/integrity.h index c42fb7a70de..2fb5e53e927 100644 --- a/security/integrity/integrity.h +++ b/security/integrity/integrity.h @@ -54,25 +54,57 @@ enum evm_ima_xattr_type { IMA_XATTR_DIGEST = 0x01, EVM_XATTR_HMAC, EVM_IMA_XATTR_DIGSIG, + IMA_XATTR_DIGEST_NG, }; struct evm_ima_xattr_data { u8 type; u8 digest[SHA1_DIGEST_SIZE]; -} __attribute__((packed)); +} __packed; + +#define IMA_MAX_DIGEST_SIZE 64 + +struct ima_digest_data { + u8 algo; + u8 length; + union { + struct { + u8 unused; + u8 type; + } sha1; + struct { + u8 type; + u8 algo; + } ng; + u8 data[2]; + } xattr; + u8 digest[0]; +} __packed; + +/* + * signature format v2 - for using with asymmetric keys + */ +struct signature_v2_hdr { + uint8_t type; /* xattr type */ + uint8_t version; /* signature format version */ + uint8_t hash_algo; /* Digest algorithm [enum pkey_hash_algo] */ + uint32_t keyid; /* IMA key identifier - not X509/PGP specific */ + uint16_t sig_size; /* signature size */ + uint8_t sig[0]; /* signature payload */ +} __packed; /* integrity data associated with an inode */ struct integrity_iint_cache { - struct rb_node rb_node; /* rooted in integrity_iint_tree */ + struct rb_node rb_node; /* rooted in integrity_iint_tree */ struct inode *inode; /* back pointer to inode in question */ u64 version; /* track inode changes */ unsigned long flags; - struct evm_ima_xattr_data ima_xattr; enum integrity_status ima_file_status:4; enum integrity_status ima_mmap_status:4; enum integrity_status ima_bprm_status:4; enum integrity_status ima_module_status:4; enum integrity_status evm_status:4; + struct ima_digest_data *ima_hash; }; /* rbtree tree calls to lookup, insert, delete @@ -89,7 +121,7 @@ struct integrity_iint_cache *integrity_iint_find(struct inode *inode); #ifdef CONFIG_INTEGRITY_SIGNATURE int integrity_digsig_verify(const unsigned int id, const char *sig, int siglen, - const char *digest, int digestlen); + const char *digest, int digestlen); #else |