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/* cms.h - Internal definitions for the CMS functions
* Copyright (C) 2001, 2012 g10 Code GmbH
*
* This file is part of KSBA.
*
* KSBA is free software; you can redistribute it and/or modify
* it under the terms of either
*
* - the GNU Lesser General Public License as published by the Free
* Software Foundation; either version 3 of the License, or (at
* your option) any later version.
*
* or
*
* - the GNU General Public License as published by the Free
* Software Foundation; either version 2 of the License, or (at
* your option) any later version.
*
* or both in parallel, as here.
*
* KSBA is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
* License for more details.
*
* You should have received a copies of the GNU General Public License
* and the GNU Lesser General Public License along with this program;
* if not, see <http://www.gnu.org/licenses/>.
*/
#ifndef CMS_H
#define CMS_H 1
#include "ksba.h"
#ifndef HAVE_TYPEDEFD_ASNNODE
typedef struct asn_node_struct *AsnNode; /* FIXME: should not go here */
#define HAVE_TYPEDEFD_ASNNODE
#endif
/* This structure is used to store the results of a BER parser run. */
struct value_tree_s {
struct value_tree_s *next;
AsnNode root; /* root of the tree with the values */
unsigned char *image;
size_t imagelen;
};
struct enc_val_s {
char *algo;
unsigned char *value; /* RSA's "a" or ECDH's "s". (malloced) */
size_t valuelen;
struct {
unsigned char *e; /* Malloced buffer. */
size_t elen; /* Length of E. */
char *encr_algo; /* Malloced OID string. */
char *wrap_algo; /* Malloced OID string. */
} ecdh;
};
struct oidlist_s {
struct oidlist_s *next;
char *oid;
};
/* A structure to store an OID and a parameter. */
struct oidparmlist_s {
struct oidparmlist_s *next;
char *oid;
size_t parmlen;
unsigned char parm[1];
};
struct certlist_s {
struct certlist_s *next;
ksba_cert_t cert;
int msg_digest_len; /* used length of .. */
char msg_digest[64]; /* enough space to store a SHA-512 hash */
ksba_isotime_t signing_time;
struct {
AsnNode root;
unsigned char *image;
} sa;
struct enc_val_s enc_val; /* used for creating enveloped data */
};
struct signer_info_s {
struct signer_info_s *next;
AsnNode root; /* root of the tree with the values */
unsigned char *image;
size_t imagelen;
struct {
char *digest_algo;
} cache;
};
struct sig_val_s {
struct sig_val_s *next;
char *algo;
unsigned char *value; /* Malloced buffer for parameter "s". */
size_t valuelen; /* Used length of VALUE. */
struct {
unsigned char *r; /* Malloced buffer for parameter "r". */
size_t rlen; /* Length of R. */
} ecc;
};
struct ksba_cms_s {
gpg_error_t last_error;
ksba_reader_t reader;
ksba_writer_t writer;
void (*hash_fnc)(void *, const void *, size_t);
void *hash_fnc_arg;
ksba_stop_reason_t stop_reason;
struct {
char *oid;
unsigned long length;
int ndef;
ksba_content_type_t ct;
gpg_error_t (*handler)(ksba_cms_t);
} content;
struct {
unsigned char *digest;
int digest_len;
} data;
int cms_version;
struct oidlist_s *digest_algos;
struct certlist_s *cert_list;
char *inner_cont_oid; /* Encapsulated or Encrypted
ContentInfo.contentType as string */
unsigned long inner_cont_len;
int inner_cont_ndef;
int detached_data; /* no actual data */
char *encr_algo_oid;
char *encr_iv;
size_t encr_ivlen;
struct certlist_s *cert_info_list; /* A list with certificates intended
to be send with a signed message */
struct oidparmlist_s *capability_list; /* A list of S/MIME capabilities. */
struct signer_info_s *signer_info;
struct value_tree_s *recp_info;
struct sig_val_s *sig_val;
struct enc_val_s *enc_val;
};
/*-- cms.c --*/
/*-- cms-parser.c --*/
gpg_error_t _ksba_cms_parse_content_info (ksba_cms_t cms);
gpg_error_t _ksba_cms_parse_signed_data_part_1 (ksba_cms_t cms);
gpg_error_t _ksba_cms_parse_signed_data_part_2 (ksba_cms_t cms);
gpg_error_t _ksba_cms_parse_enveloped_data_part_1 (ksba_cms_t cms);
gpg_error_t _ksba_cms_parse_enveloped_data_part_2 (ksba_cms_t cms);
#endif /*CMS_H*/

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