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/* main.h
* Copyright (C) 2002, 2003, 2007, 2008, 2010, 2011 Free Software Foundation,
* Inc.
*
* Author: Timo Schulz
*
* This file is part of OpenCDK.
*
* The OpenCDK library is free software; you can redistribute it and/or
* modify it under the terms of 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.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>
*
*/
#ifndef CDK_MAIN_H
#define CDK_MAIN_H
#include "types.h"
#define _cdk_log_debug _gnutls_hard_log
#define _cdk_log_info _gnutls_debug_log
#define _cdk_get_log_level() _gnutls_log_level
#define cdk_malloc gnutls_malloc
#define cdk_free gnutls_free
#define cdk_calloc gnutls_calloc
#define cdk_realloc gnutls_realloc_fast
#define cdk_strdup gnutls_strdup
#define cdk_salloc gnutls_secure_calloc
#define map_gnutls_error _cdk_map_gnutls_error
cdk_error_t map_gnutls_error (int err);
/* The general size of a buffer for the variou modules. */
#define BUFSIZE 8192
/* This is the default block size for the partial length packet mode. */
#define DEF_BLOCKSIZE 8192
#define DEF_BLOCKBITS 13 /* 2^13 = 8192 */
/* For now SHA-1 is used to create fingerprint for keys.
But if this will ever change, it is a good idea to
have a constant for it to avoid to change it in all files. */
#define KEY_FPR_LEN 20
#include "context.h"
/* The maximal amount of bits a multi precsion integer can have. */
#define MAX_MPI_BITS 16384
#define MAX_MPI_BYTES (MAX_MPI_BITS/8)
/* Because newer DSA variants are not limited to SHA-1, we must consider
that SHA-512 is used and increase the buffer size of the digest. */
#define MAX_DIGEST_LEN 64
/* Helper to find out if the signature were made over a user ID
or if the signature revokes a previous user ID. */
#define IS_UID_SIG(s) (((s)->sig_class & ~3) == 0x10)
#define IS_UID_REV(s) ((s)->sig_class == 0x30)
#define DEBUG_PKT (_cdk_get_log_level () == (CDK_LOG_DEBUG+1))
/* Helper to find out if a key has the requested capability. */
#define KEY_CAN_ENCRYPT(a) ((_cdk_pk_algo_usage ((a))) & CDK_KEY_USG_ENCR)
#define KEY_CAN_SIGN(a) ((_cdk_pk_algo_usage ((a))) & CDK_KEY_USG_SIGN)
#define KEY_CAN_AUTH(a) ((_cdk_pk_algo_usage ((a))) & CDK_KEY_USG_AUTH)
/*-- armor.c --*/
const char *_cdk_armor_get_lineend (void);
/*-- main.c --*/
char *_cdk_passphrase_get (cdk_ctx_t hd, const char *prompt);
/*-- misc.c --*/
int _cdk_check_args (int overwrite, const char *in, const char *out);
u32 _cdk_buftou32 (const byte * buf);
void _cdk_u32tobuf (u32 u, byte * buf);
const char *_cdk_memistr (const char *buf, size_t buflen, const char *sub);
FILE *_cdk_tmpfile (void);
/* Helper to provide case insentensive strstr version. */
#define stristr(haystack, needle) \
_cdk_memistr((haystack), strlen (haystack), (needle))
/*-- proc-packet.c --*/
cdk_error_t _cdk_proc_packets (cdk_ctx_t hd, cdk_stream_t inp,
cdk_stream_t data,
const char *output, cdk_stream_t outstream,
digest_hd_st * md);
cdk_error_t _cdk_pkt_write2 (cdk_stream_t out, int pkttype, void *pktctx);
/*-- pubkey.c --*/
u32 _cdk_pkt_get_keyid (cdk_packet_t pkt, u32 * keyid);
cdk_error_t _cdk_pkt_get_fingerprint (cdk_packet_t pkt, byte * fpr);
int _cdk_pk_algo_usage (int algo);
int _cdk_pk_test_algo (int algo, unsigned int usage);
int _cdk_sk_get_csum (cdk_pkt_seckey_t sk);
/*-- new-packet.c --*/
byte *_cdk_subpkt_get_array (cdk_subpkt_t s, int count, size_t * r_nbytes);
cdk_error_t _cdk_subpkt_copy (cdk_subpkt_t * r_dst, cdk_subpkt_t src);
void _cdk_pkt_detach_free (cdk_packet_t pkt, int *r_pkttype, void **ctx);
/*-- sig-check.c --*/
cdk_error_t _cdk_sig_check (cdk_pkt_pubkey_t pk, cdk_pkt_signature_t sig,
digest_hd_st * digest, int *r_expired);
cdk_error_t _cdk_hash_sig_data (cdk_pkt_signature_t sig, digest_hd_st * hd);
cdk_error_t _cdk_hash_userid (cdk_pkt_userid_t uid, int sig_version,
digest_hd_st * md);
cdk_error_t _cdk_hash_pubkey (cdk_pkt_pubkey_t pk, digest_hd_st * md,
int use_fpr);
cdk_error_t _cdk_pk_check_sig (cdk_keydb_hd_t hd, cdk_kbnode_t knode,
cdk_kbnode_t snode, int *is_selfsig,
char **ret_uid);
/*-- kbnode.c --*/
void _cdk_kbnode_add (cdk_kbnode_t root, cdk_kbnode_t node);
void _cdk_kbnode_clone (cdk_kbnode_t node);
/*-- sesskey.c --*/
cdk_error_t _cdk_digest_encode_pkcs1 (byte ** r_md, size_t * r_mdlen,
int pk_algo,
const byte * md,
int digest_algo, unsigned nbits);
cdk_error_t _cdk_sk_unprotect_auto (cdk_ctx_t hd, cdk_pkt_seckey_t sk);
/*-- keydb.c --*/
int _cdk_keydb_is_secret (cdk_keydb_hd_t db);
cdk_error_t _cdk_keydb_get_pk_byusage (cdk_keydb_hd_t hd, const char *name,
cdk_pkt_pubkey_t * ret_pk, int usage);
cdk_error_t _cdk_keydb_get_sk_byusage (cdk_keydb_hd_t hd, const char *name,
cdk_pkt_seckey_t * ret_sk, int usage);
cdk_error_t _cdk_keydb_check_userid (cdk_keydb_hd_t hd, u32 * keyid,
const char *id);
/*-- sign.c --*/
int _cdk_sig_hash_for (cdk_pkt_pubkey_t pk);
void _cdk_trim_string (char *s);
cdk_error_t _cdk_sig_create (cdk_pkt_pubkey_t pk, cdk_pkt_signature_t sig);
cdk_error_t _cdk_sig_complete (cdk_pkt_signature_t sig, cdk_pkt_seckey_t sk,
digest_hd_st * hd);
/*-- stream.c --*/
void _cdk_stream_set_compress_algo (cdk_stream_t s, int algo);
cdk_error_t _cdk_stream_open_mode (const char *file, const char *mode,
cdk_stream_t * ret_s);
void *_cdk_stream_get_opaque (cdk_stream_t s, int fid);
const char *_cdk_stream_get_fname (cdk_stream_t s);
FILE *_cdk_stream_get_fp (cdk_stream_t s);
int _cdk_stream_gets (cdk_stream_t s, char *buf, size_t count);
cdk_error_t _cdk_stream_append (const char *file, cdk_stream_t * ret_s);
int _cdk_stream_get_errno (cdk_stream_t s);
cdk_error_t _cdk_stream_set_blockmode (cdk_stream_t s, size_t nbytes);
int _cdk_stream_get_blockmode (cdk_stream_t s);
int _cdk_stream_puts (cdk_stream_t s, const char *buf);
cdk_error_t _cdk_stream_fpopen (FILE * fp, unsigned write_mode,
cdk_stream_t * ret_out);
/*-- read-packet.c --*/
size_t _cdk_pkt_read_len (FILE * inp, size_t * ret_partial);
/*-- write-packet.c --*/
cdk_error_t _cdk_pkt_write_fp (FILE * out, cdk_packet_t pkt);
/*-- seskey.c --*/
cdk_error_t _cdk_s2k_copy (cdk_s2k_t * r_dst, cdk_s2k_t src);
#define _cdk_pub_algo_to_pgp(algo) (algo)
#define _pgp_pub_algo_to_cdk(algo) (algo)
int _gnutls_hash_algo_to_pgp (int algo);
int _pgp_hash_algo_to_gnutls (int algo);
int _gnutls_cipher_to_pgp (int cipher);
int _pgp_cipher_to_gnutls (int cipher);
#endif /* CDK_MAIN_H */
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