[mirror_ubuntu-zesty-kernel.git] / crypto / asymmetric_keys / pkcs7_parser.h

/* PKCS#7 crypto data parser internal definitions
 *
 * Copyright (C) 2012 Red Hat, Inc. All Rights Reserved.
 * Written by David Howells (dhowells@redhat.com)
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public Licence
 * as published by the Free Software Foundation; either version
 * 2 of the Licence, or (at your option) any later version.
 */

#include <linux/oid_registry.h>
#include <crypto/pkcs7.h>
#include "x509_parser.h"

#define kenter(FMT, ...) \
	pr_devel("==> %s("FMT")\n", __func__, ##__VA_ARGS__)
#define kleave(FMT, ...) \
	pr_devel("<== %s()"FMT"\n", __func__, ##__VA_ARGS__)

struct pkcs7_signed_info {
	struct pkcs7_signed_info *next;
	struct x509_certificate *signer; /* Signing certificate (in msg->certs) */
	unsigned	index;
	bool		unsupported_crypto;	/* T if not usable due to missing crypto */

	/* Message digest - the digest of the Content Data (or NULL) */
	const void	*msgdigest;
	unsigned	msgdigest_len;

	/* Authenticated Attribute data (or NULL) */
	unsigned	authattrs_len;
	const void	*authattrs;
	unsigned long	aa_set;
#define	sinfo_has_content_type		0
#define	sinfo_has_signing_time		1
#define	sinfo_has_message_digest	2
#define sinfo_has_smime_caps		3
#define	sinfo_has_ms_opus_info		4
#define	sinfo_has_ms_statement_type	5
	time64_t	signing_time;

	/* Message signature.
	 *
	 * This contains the generated digest of _either_ the Content Data or
	 * the Authenticated Attributes [RFC2315 9.3].  If the latter, one of
	 * the attributes contains the digest of the the Content Data within
	 * it.
	 *
	 * THis also contains the issuing cert serial number and issuer's name
	 * [PKCS#7 or CMS ver 1] or issuing cert's SKID [CMS ver 3].
	 */
	struct public_key_signature *sig;
};

struct pkcs7_message {
	struct x509_certificate *certs;	/* Certificate list */
	struct x509_certificate *crl;	/* Revocation list */
	struct pkcs7_signed_info *signed_infos;
	u8		version;	/* Version of cert (1 -> PKCS#7 or CMS; 3 -> CMS) */
	bool		have_authattrs;	/* T if have authattrs */

	/* Content Data (or NULL) */
	enum OID	data_type;	/* Type of Data */
	size_t		data_len;	/* Length of Data */
	size_t		data_hdrlen;	/* Length of Data ASN.1 header */
	const void	*data;		/* Content Data (or 0) */
};
Commit	Line	Data
2e3fadbf DH	1	/* PKCS#7 crypto data parser internal definitions
	2	*
	3	* Copyright (C) 2012 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	#include <linux/oid_registry.h>
	13	#include <crypto/pkcs7.h>
	14	#include "x509_parser.h"
	15
	16	#define kenter(FMT, ...) \
	17	pr_devel("==> %s("FMT")\n", __func__, ##__VA_ARGS__)
	18	#define kleave(FMT, ...) \
	19	pr_devel("<== %s()"FMT"\n", __func__, ##__VA_ARGS__)
	20
	21	struct pkcs7_signed_info {
	22	struct pkcs7_signed_info *next;
	23	struct x509_certificate signer; / Signing certificate (in msg->certs) */
99db4435	24	unsigned index;
99db4435	25	bool unsupported_crypto; /* T if not usable due to missing crypto */
2e3fadbf DH	26
	27	/* Message digest - the digest of the Content Data (or NULL) */
	28	const void *msgdigest;
	29	unsigned msgdigest_len;
	30
	31	/* Authenticated Attribute data (or NULL) */
	32	unsigned authattrs_len;
	33	const void *authattrs;
99db4435 DH	34	unsigned long aa_set;
	35	#define sinfo_has_content_type 0
	36	#define sinfo_has_signing_time 1
	37	#define sinfo_has_message_digest 2
	38	#define sinfo_has_smime_caps 3
	39	#define sinfo_has_ms_opus_info 4
	40	#define sinfo_has_ms_statement_type 5
	41	time64_t signing_time;
2e3fadbf	42
2e3fadbf DH	43	/* Message signature.
	44	*
	45	* This contains the generated digest of _either_ the Content Data or
	46	* the Authenticated Attributes [RFC2315 9.3]. If the latter, one of
	47	* the attributes contains the digest of the the Content Data within
	48	* it.
566a117a DH	49	*
	50	* THis also contains the issuing cert serial number and issuer's name
	51	* [PKCS#7 or CMS ver 1] or issuing cert's SKID [CMS ver 3].
2e3fadbf	52	*/
566a117a	53	struct public_key_signature *sig;
2e3fadbf DH	54	};
	55
	56	struct pkcs7_message {
	57	struct x509_certificate certs; / Certificate list */
	58	struct x509_certificate crl; / Revocation list */
	59	struct pkcs7_signed_info *signed_infos;
60d65cac	60	u8 version; /* Version of cert (1 -> PKCS#7 or CMS; 3 -> CMS) */
99db4435	61	bool have_authattrs; /* T if have authattrs */
2e3fadbf DH	62
	63	/* Content Data (or NULL) */
	64	enum OID data_type; /* Type of Data */
	65	size_t data_len; /* Length of Data */
	66	size_t data_hdrlen; /* Length of Data ASN.1 header */
	67	const void data; / Content Data (or 0) */
	68	};