security-and-privacy/gnupg
security-and-privacy/gnupg
1
0
Fork 0
mirror of git://git.gnupg.org/gnupg.git synced 2024-12-22 10:19:57 +01:00
Code Activity
gnupg/kbx/keybox-defs.h
Werner Koch 0039d7107b
kbx: Unify blob reading functions. 
* kbx/keybox-file.c (_keybox_read_blob): Remove.
(_keybox_read_blob2): Rename to ....
(_keybox_read_blob): this.  Make arg options.  Change all callers.
* kbx/keybox-search.c (keybox_search): Factor fopen call out to ...
(open_file): new.
(keybox_seek): Als use open_file.

Signed-off-by: Werner Koch <wk@gnupg.org>
2017-04-01 11:10:47 +02:00

273 lines
8.5 KiB
C
Raw Permalink Blame History

/* keybox-defs.h - internal Keybox definitions
* Copyright (C) 2001, 2004 Free Software Foundation, Inc.
*
* This file is part of GnuPG.
*
* GnuPG is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* GnuPG 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 copy of the GNU General Public License
* along with this program; if not, see <https://www.gnu.org/licenses/>.
*/
#ifndef KEYBOX_DEFS_H
#define KEYBOX_DEFS_H 1
#ifdef GPG_ERR_SOURCE_DEFAULT
# if GPG_ERR_SOURCE_DEFAULT != GPG_ERR_SOURCE_KEYBOX
# error GPG_ERR_SOURCE_DEFAULT already defined
# endif
#else
# define GPG_ERR_SOURCE_DEFAULT GPG_ERR_SOURCE_KEYBOX
#endif
#include <gpg-error.h>
#define map_assuan_err(a) \
map_assuan_err_with_source (GPG_ERR_SOURCE_DEFAULT, (a))
#include <sys/types.h> /* off_t */
/* We include the type defintions from jnlib instead of defining our
owns here. This will not allow us build KBX in a standalone way
but there is currently no need for it anyway. Same goes for
stringhelp.h which for example provides a replacement for stpcpy -
fixme: Better use the LIBOBJ mechnism. */
#include "../common/types.h"
#include "../common/stringhelp.h"
#include "../common/dotlock.h"
#include "../common/logging.h"
#include "keybox.h"
typedef struct keyboxblob *KEYBOXBLOB;
typedef struct keybox_name *KB_NAME;
struct keybox_name
{
/* Link to the next resources, so that we can walk all
resources. */
KB_NAME next;
/* True if this is a keybox with secret keys. */
int secret;
/* A table with all the handles accessing this resources.
HANDLE_TABLE_SIZE gives the allocated length of this table unused
entrues are set to NULL. HANDLE_TABLE may be NULL. */
KEYBOX_HANDLE *handle_table;
size_t handle_table_size;
/* The lock handle or NULL it not yet initialized. */
dotlock_t lockhd;
/* Not yet used. */
int is_locked;
/* Not yet used. */
int did_full_scan;
/* The name of the resource file. */
char fname[1];
};
struct keybox_found_s
{
KEYBOXBLOB blob;
size_t pk_no;
size_t uid_no;
};
struct keybox_handle {
KB_NAME kb;
int secret; /* this is for a secret keybox */
FILE *fp;
int eof;
int error;
int ephemeral;
int for_openpgp; /* Used by gpg. */
struct keybox_found_s found;
struct keybox_found_s saved_found;
struct {
char *name;
char *pattern;
} word_match;
};
/* Openpgp helper structures. */
struct _keybox_openpgp_key_info
{
struct _keybox_openpgp_key_info *next;
int algo;
unsigned char keyid[8];
int fprlen; /* Either 16 or 20 */
unsigned char fpr[20];
};
struct _keybox_openpgp_uid_info
{
struct _keybox_openpgp_uid_info *next;
size_t off;
size_t len;
};
struct _keybox_openpgp_info
{
int is_secret; /* True if this is a secret key. */
unsigned int nsubkeys;/* Total number of subkeys. */
unsigned int nuids; /* Total number of user IDs in the keyblock. */
unsigned int nsigs; /* Total number of signatures in the keyblock. */
/* Note, we use 2 structs here to better cope with the most common
use of having one primary and one subkey - this allows us to
statically allocate this structure and only malloc stuff for more
than one subkey. */
struct _keybox_openpgp_key_info primary;
struct _keybox_openpgp_key_info subkeys;
struct _keybox_openpgp_uid_info uids;
};
typedef struct _keybox_openpgp_info *keybox_openpgp_info_t;
/* Don't know whether this is needed: */
/* static struct { */
/* int dry_run; */
/* int quiet; */
/* int verbose; */
/* int preserve_permissions; */
/* } keybox_opt; */
/*-- keybox-init.c --*/
void _keybox_close_file (KEYBOX_HANDLE hd);
/*-- keybox-blob.c --*/
gpg_error_t _keybox_create_openpgp_blob (KEYBOXBLOB *r_blob,
keybox_openpgp_info_t info,
const unsigned char *image,
size_t imagelen,
int as_ephemeral);
#ifdef KEYBOX_WITH_X509
int _keybox_create_x509_blob (KEYBOXBLOB *r_blob, ksba_cert_t cert,
unsigned char *sha1_digest, int as_ephemeral);
#endif /*KEYBOX_WITH_X509*/
int _keybox_new_blob (KEYBOXBLOB *r_blob,
unsigned char *image, size_t imagelen,
off_t off);
void _keybox_release_blob (KEYBOXBLOB blob);
const unsigned char *_keybox_get_blob_image (KEYBOXBLOB blob, size_t *n);
off_t _keybox_get_blob_fileoffset (KEYBOXBLOB blob);
void _keybox_update_header_blob (KEYBOXBLOB blob, int for_openpgp);
/*-- keybox-openpgp.c --*/
gpg_error_t _keybox_parse_openpgp (const unsigned char *image, size_t imagelen,
size_t *nparsed,
keybox_openpgp_info_t info);
void _keybox_destroy_openpgp_info (keybox_openpgp_info_t info);
/*-- keybox-file.c --*/
int _keybox_read_blob (KEYBOXBLOB *r_blob, FILE *fp, int *skipped_deleted);
int _keybox_write_blob (KEYBOXBLOB blob, FILE *fp);
/*-- keybox-search.c --*/
gpg_err_code_t _keybox_get_flag_location (const unsigned char *buffer,
size_t length,
int what,
size_t *flag_off, size_t *flag_size);
static inline int
blob_get_type (KEYBOXBLOB blob)
{
const unsigned char *buffer;
size_t length;
buffer = _keybox_get_blob_image (blob, &length);
if (length < 32)
return -1; /* blob too short */
return buffer[4];
}
/*-- keybox-dump.c --*/
int _keybox_dump_blob (KEYBOXBLOB blob, FILE *fp);
int _keybox_dump_file (const char *filename, int stats_only, FILE *outfp);
int _keybox_dump_find_dups (const char *filename, int print_them, FILE *outfp);
int _keybox_dump_cut_records (const char *filename, unsigned long from,
unsigned long to, FILE *outfp);
/*-- keybox-util.c --*/
void *_keybox_malloc (size_t n);
void *_keybox_calloc (size_t n, size_t m);
void *_keybox_realloc (void *p, size_t n);
void _keybox_free (void *p);
#define xtrymalloc(a) _keybox_malloc ((a))
#define xtrycalloc(a,b) _keybox_calloc ((a),(b))
#define xtryrealloc(a,b) _keybox_realloc((a),(b))
#define xfree(a) _keybox_free ((a))
#define DIM(v) (sizeof(v)/sizeof((v)[0]))
#define DIMof(type,member) DIM(((type *)0)->member)
#ifndef STR
# define STR(v) #v
#endif
#define STR2(v) STR(v)
/*
a couple of handy macros
*/
#define return_if_fail(expr) do { \
if (!(expr)) { \
fprintf (stderr, "%s:%d: assertion '%s' failed\n", \
__FILE__, __LINE__, #expr ); \
return; \
} } while (0)
#define return_null_if_fail(expr) do { \
if (!(expr)) { \
fprintf (stderr, "%s:%d: assertion '%s' failed\n", \
__FILE__, __LINE__, #expr ); \
return NULL; \
} } while (0)
#define return_val_if_fail(expr,val) do { \
if (!(expr)) { \
fprintf (stderr, "%s:%d: assertion '%s' failed\n", \
__FILE__, __LINE__, #expr ); \
return (val); \
} } while (0)
#define never_reached() do { \
fprintf (stderr, "%s:%d: oops; should never get here\n", \
__FILE__, __LINE__ ); \
} while (0)
/* some macros to replace ctype ones and avoid locale problems */
#define digitp(p) (*(p) >= '0' && *(p) <= '9')
#define hexdigitp(a) (digitp (a) \
|| (*(a) >= 'A' && *(a) <= 'F') \
|| (*(a) >= 'a' && *(a) <= 'f'))
/* the atoi macros assume that the buffer has only valid digits */
#define atoi_1(p) (*(p) - '0' )
#define atoi_2(p) ((atoi_1(p) * 10) + atoi_1((p)+1))
#define atoi_4(p) ((atoi_2(p) * 100) + atoi_2((p)+2))
#define xtoi_1(p) (*(p) <= '9'? (*(p)- '0'): \
*(p) <= 'F'? (*(p)-'A'+10):(*(p)-'a'+10))
#define xtoi_2(p) ((xtoi_1(p) * 16) + xtoi_1((p)+1))
#endif /*KEYBOX_DEFS_H*/
View Git Blame Copy Permalink