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gpg: First working support for keyboxes.

Browse Source 
* g10/getkey.c (get_pubkey_fast): Improve the assertion.
* kbx/keybox.h: Include iobuf.h.
* kbx/keybox-blob.c (keyboxblob_uid): Add field OFF.
(KEYBOX_WITH_OPENPGP): Remove use of this macro.
(pgp_create_key_part_single): New.
(pgp_temp_store_kid): Change to use the keybox-openpgp parser.
(pgp_create_key_part): Ditto.
(pgp_create_uid_part): Ditto.
(pgp_create_sig_part): Ditto.
(pgp_create_blob_keyblock): Ditto.
(_keybox_create_openpgp_blob): Ditto.
* kbx/keybox-search.c (keybox_get_keyblock): New.
* kbx/keybox-update.c (keybox_insert_keyblock): New.
* g10/keydb.c (parse_keyblock_image):
(keydb_get_keyblock): Support keybox.
(build_keyblock_image): New.
(keydb_insert_keyblock): Support keybox.

* kbx/kbxutil.c (import_openpgp, main): Add option --dry-run and print
a kbx file to stdout.

* kbx/keybox-file.c (_keybox_read_blob2): Allow keyblocks up to 10^6
bytes.
--

Import and key listing does now work with the keybox format.  It is
still quite slow and signature caching is completely missing.

Increasing the maximum allowed length for a keyblock was required due
to a 700k keyblock which inhibited kbxutil to list the file.
kbxutil's option name --import-openpgp is not quite appropriate
because it only creates KBX blobs from OpenPGP data.
This commit is contained in:
Werner Koch 2012-12-28 14:03:16 +01:00
parent f7495f1004
commit a986383424
9 changed files with 429 additions and 182 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
g10/getkey.c
View File

@ -444,8 +444,9 @@ get_pubkey_fast (PKT_public_key * pk, u32 * keyid)
return G10ERR_NO_PUBKEY;
}
assert (keyblock->pkt->pkttype == PKT_PUBLIC_KEY
|| keyblock->pkt->pkttype == PKT_PUBLIC_SUBKEY);
assert (keyblock && keyblock->pkt
&& (keyblock->pkt->pkttype == PKT_PUBLIC_KEY
|| keyblock->pkt->pkttype == PKT_PUBLIC_SUBKEY));
keyid_from_pk (keyblock->pkt->pkt.public_key, pkid);
if (keyid[0] == pkid[0] && keyid[1] == pkid[1])

189
g10/keydb.c
View File

@ -616,6 +616,97 @@ unlock_all (KEYDB_HANDLE hd)
}
static gpg_error_t
parse_keyblock_image (iobuf_t iobuf, kbnode_t *r_keyblock)
{
gpg_error_t err;
PACKET *pkt;
kbnode_t keyblock = NULL;
kbnode_t node;
int in_cert, save_mode;
*r_keyblock = NULL;
pkt = xtrymalloc (sizeof *pkt);
if (!pkt)
return gpg_error_from_syserror ();
init_packet (pkt);
save_mode = set_packet_list_mode (0);
in_cert = 0;
while ((err = parse_packet (iobuf, pkt)) != -1)
{
if (gpg_err_code (err) == GPG_ERR_UNKNOWN_PACKET)
{
free_packet (pkt);
init_packet (pkt);
continue;
}
if (err)
{
log_error ("parse_keyblock_image: read error: %s\n",
gpg_strerror (err));
err = gpg_error (GPG_ERR_INV_KEYRING);
break;
}
if (pkt->pkttype == PKT_COMPRESSED)
{
log_error ("skipped compressed packet in keybox blob\n");
free_packet(pkt);
init_packet(pkt);
continue;
}
if (pkt->pkttype == PKT_RING_TRUST)
{
log_info ("skipped ring trust packet in keybox blob\n");
free_packet(pkt);
init_packet(pkt);
continue;
}
if (!in_cert && pkt->pkttype != PKT_PUBLIC_KEY)
{
log_error ("error: first packet in a keybox blob is not a "
"public key packet\n");
err = gpg_error (GPG_ERR_INV_KEYRING);
break;
}
if (in_cert && (pkt->pkttype == PKT_PUBLIC_KEY
|| pkt->pkttype == PKT_SECRET_KEY))
{
log_error ("error: multiple keyblocks in a keybox blob\n");
err = gpg_error (GPG_ERR_INV_KEYRING);
break;
}
in_cert = 1;
node = new_kbnode (pkt);
if (!keyblock)
keyblock = node;
else
add_kbnode (keyblock, node);
pkt = xtrymalloc (sizeof *pkt);
if (!pkt)
{
err = gpg_error_from_syserror ();
break;
}
init_packet (pkt);
}
set_packet_list_mode (save_mode);
if (err == -1 && keyblock)
err = 0; /* Got the entire keyblock. */
if (err)
release_kbnode (keyblock);
else
*r_keyblock = keyblock;
free_packet (pkt);
xfree (pkt);
return err;
}
/*
* Return the last found keyring. Caller must free it.
* The returned keyblock has the kbode flag bit 0 set for the node with
@ -627,6 +718,8 @@ keydb_get_keyblock (KEYDB_HANDLE hd, KBNODE *ret_kb)
{
gpg_error_t err = 0;
*ret_kb = NULL;
if (!hd)
return gpg_error (GPG_ERR_INV_ARG);
@ -641,16 +734,66 @@ keydb_get_keyblock (KEYDB_HANDLE hd, KBNODE *ret_kb)
case KEYDB_RESOURCE_TYPE_KEYRING:
err = keyring_get_keyblock (hd->active[hd->found].u.kr, ret_kb);
break;
/* case KEYDB_RESOURCE_TYPE_KEYBOX: */
/* err = keybox_get_keyblock (hd->active[hd->found].u.kb, ret_kb); */
/* if (!err) */
/* err = parse_keyblock (image, imagelen) */
/* break; */
case KEYDB_RESOURCE_TYPE_KEYBOX:
{
iobuf_t iobuf;
err = keybox_get_keyblock (hd->active[hd->found].u.kb, &iobuf);
if (!err)
{
err = parse_keyblock_image (iobuf, ret_kb);
iobuf_close (iobuf);
}
}
break;
}
return err;
}
/* Build a keyblock image from KEYBLOCK. Returns 0 on success and
only then stores a new iobuf object at R_IOBUF. */
static gpg_error_t
build_keyblock_image (kbnode_t keyblock, iobuf_t *r_iobuf)
{
gpg_error_t err;
iobuf_t iobuf;
kbnode_t kbctx, node;
*r_iobuf = NULL;
iobuf = iobuf_temp ();
for (kbctx = NULL; (node = walk_kbnode (keyblock, &kbctx, 0)); )
{
/* Make sure to use only packets valid on a keyblock. */
switch (node->pkt->pkttype)
{
case PKT_PUBLIC_KEY:
case PKT_PUBLIC_SUBKEY:
case PKT_SIGNATURE:
case PKT_USER_ID:
case PKT_ATTRIBUTE:
/* Note that we don't want the ring trust packets. They are
not useful. */
break;
default:
continue;
}
err = build_packet (iobuf, node->pkt);
if (err)
{
iobuf_close (iobuf);
return err;
}
}
*r_iobuf = iobuf;
return 0;
}
/*
* Update the current keyblock with the keyblock KB
*/
@ -699,7 +842,7 @@ keydb_update_keyblock (KEYDB_HANDLE hd, kbnode_t kb)
gpg_error_t
keydb_insert_keyblock (KEYDB_HANDLE hd, kbnode_t kb)
{
int rc;
gpg_error_t err;
int idx;
if (!hd)
@ -715,27 +858,39 @@ keydb_insert_keyblock (KEYDB_HANDLE hd, kbnode_t kb)
else
return gpg_error (GPG_ERR_GENERAL);
rc = lock_all (hd);
if (rc)
return rc;
err = lock_all (hd);
if (err)
return err;
switch (hd->active[idx].type)
{
case KEYDB_RESOURCE_TYPE_NONE:
rc = gpg_error (GPG_ERR_GENERAL); /* oops */
err = gpg_error (GPG_ERR_GENERAL); /* oops */
break;
case KEYDB_RESOURCE_TYPE_KEYRING:
rc = keyring_insert_keyblock (hd->active[idx].u.kr, kb);
err = keyring_insert_keyblock (hd->active[idx].u.kr, kb);
break;
case KEYDB_RESOURCE_TYPE_KEYBOX:
{ /* We need to turn our kbnode_t list of packets into a proper
keyblock first. This is required by the OpenPGP key parser
included in the keybox code. Eventually we can change this
kludge to have the caller pass the image. */
iobuf_t iobuf;
err = build_keyblock_image (kb, &iobuf);
if (!err)
{
err = keybox_insert_keyblock (hd->active[idx].u.kb,
iobuf_get_temp_buffer (iobuf),
iobuf_get_temp_length (iobuf));
iobuf_close (iobuf);
}
}
break;
/* case KEYDB_RESOURCE_TYPE_KEYBOX: */
/* rc = build_keyblock (kb, &image, &imagelen); */
/* if (!rc) */
/* rc = keybox_insert_keyblock (hd->active[idx].u.kb, image, imagelen); */
/* break; */
}
unlock_all (hd);
return rc;
return err;
}

33
kbx/kbxutil.c
View File

@ -371,13 +371,14 @@ dump_openpgp_key (keybox_openpgp_info_t info, const unsigned char *image)
static void
import_openpgp (const char *filename)
import_openpgp (const char *filename, int dryrun)
{
gpg_error_t err;
char *buffer;
size_t buflen, nparsed;
unsigned char *p;
struct _keybox_openpgp_info info;
KEYBOXBLOB blob;
buffer = read_file (filename, &buflen);
if (!buffer)
@ -406,7 +407,30 @@ import_openpgp (const char *filename)
}
else
{
if (dryrun)
dump_openpgp_key (&info, p);
else
{
err = _keybox_create_openpgp_blob (&blob, &info, p, nparsed, 0);
if (err)
{
fflush (stdout);
log_error ("%s: failed to create OpenPGP keyblock: %s\n",
filename, gpg_strerror (err));
}
else
{
err = _keybox_write_blob (blob, stdout);
_keybox_release_blob (blob);
if (err)
{
fflush (stdout);
log_error ("%s: failed to write OpenPGP keyblock: %s\n",
filename, gpg_strerror (err));
}
}
}
_keybox_destroy_openpgp_info (&info);
}
p += nparsed;
@ -424,6 +448,7 @@ main( int argc, char **argv )
ARGPARSE_ARGS pargs;
enum cmd_and_opt_values cmd = 0;
unsigned long from = 0, to = ULONG_MAX;
int dry_run = 0;
set_strusage( my_strusage );
gcry_control (GCRYCTL_DISABLE_SECMEM);
@ -481,6 +506,8 @@ main( int argc, char **argv )
case oFrom: from = pargs.r.ret_ulong; break;
case oTo: to = pargs.r.ret_ulong; break;
case oDryRun: dry_run = 1; break;
default:
pargs.err = 2;
break;
@ -537,11 +564,11 @@ main( int argc, char **argv )
else if (cmd == aImportOpenPGP)
{
if (!argc)
import_openpgp ("-");
import_openpgp ("-", dry_run);
else
{
for (; argc; argc--, argv++)
import_openpgp (*argv);
import_openpgp (*argv, dry_run);
}
}
#if 0

258
kbx/keybox-blob.c
View File

@ -47,7 +47,7 @@ X.509 specific are noted like [X.509: xxx]
byte Blob type (2) [X509: 3]
byte version number of this blob type (1)
u16 Blob flags
bit 0 = contains secret key material
bit 0 = contains secret key material (not used)
bit 1 = ephemeral blob (e.g. used while quering external resources)
u32 offset to the OpenPGP keyblock or X509 DER encoded certificate
@ -119,9 +119,6 @@ X.509 specific are noted like [X.509: xxx]
#include "keybox-defs.h"
#include <gcrypt.h>
#ifdef KEYBOX_WITH_OPENPGP
/* include stuff to parse the packets */
#endif
#ifdef KEYBOX_WITH_X509
#include <ksba.h>
#endif
@ -156,6 +153,7 @@ struct keyboxblob_key {
u16 flags;
};
struct keyboxblob_uid {
u32 off;
ulong off_addr;
char *name; /* used only with x509 */
u32 len;
@ -311,33 +309,24 @@ add_fixup (KEYBOXBLOB blob, u32 off, u32 val)
#ifdef KEYBOX_WITH_OPENPGP
/*
OpenPGP specific stuff
*/
/*
We must store the keyid at some place because we can't calculate the
offset yet. This is only used for v3 keyIDs. Function returns an
index value for later fixup or -1 for out of core. The value must be
a non-zero value */
/* We must store the keyid at some place because we can't calculate
the offset yet. This is only used for v3 keyIDs. Function returns
an index value for later fixup or -1 for out of core. The value
must be a non-zero value. */
static int
pgp_temp_store_kid (KEYBOXBLOB blob, PKT_public_key *pk)
pgp_temp_store_kid (KEYBOXBLOB blob, struct _keybox_openpgp_key_info *kinfo)
{
struct keyid_list *k, *r;
k = xtrymalloc (sizeof *k);
if (!k)
return -1;
k->kid[0] = pk->keyid[0] >> 24 ;
k->kid[1] = pk->keyid[0] >> 16 ;
k->kid[2] = pk->keyid[0] >> 8 ;
k->kid[3] = pk->keyid[0] ;
k->kid[4] = pk->keyid[0] >> 24 ;
k->kid[5] = pk->keyid[0] >> 16 ;
k->kid[6] = pk->keyid[0] >> 8 ;
k->kid[7] = pk->keyid[0] ;
memcpy (k->kid, kinfo->keyid, 8);
k->seqno = 0;
k->next = blob->temp_kids;
blob->temp_kids = k;
@ -347,124 +336,108 @@ pgp_temp_store_kid (KEYBOXBLOB blob, PKT_public_key *pk)
return k->seqno;
}
static int
pgp_create_key_part (KEYBOXBLOB blob, KBNODE keyblock)
/* Helper for pgp_create_key_part. */
static gpg_error_t
pgp_create_key_part_single (KEYBOXBLOB blob, int n,
struct _keybox_openpgp_key_info *kinfo)
{
KBNODE node;
size_t fprlen;
int n;
int off;
for (n=0, node = keyblock; node; node = node->next)
fprlen = kinfo->fprlen;
if (fprlen > 20)
fprlen = 20;
memcpy (blob->keys[n].fpr, kinfo->fpr, fprlen);
if (fprlen != 20) /* v3 fpr - shift right and fill with zeroes. */
{
if ( node->pkt->pkttype == PKT_PUBLIC_KEY
|| node->pkt->pkttype == PKT_PUBLIC_SUBKEY )
{
PKT_public_key *pk = node->pkt->pkt.public_key;
char tmp[20];
fingerprint_from_pk (pk, tmp , &fprlen);
memcpy (blob->keys[n].fpr, tmp, 20);
if ( fprlen != 20 ) /*v3 fpr - shift right and fill with zeroes*/
{
assert (fprlen == 16);
memmove (blob->keys[n].fpr+4, blob->keys[n].fpr, 16);
memset (blob->keys[n].fpr, 0, 4);
blob->keys[n].off_kid = pgp_temp_store_kid (blob, pk);
memmove (blob->keys[n].fpr + 20 - fprlen, blob->keys[n].fpr, fprlen);
memset (blob->keys[n].fpr, 0, 20 - fprlen);
off = pgp_temp_store_kid (blob, kinfo);
if (off == -1)
return gpg_error_from_syserror ();
blob->keys[n].off_kid = off;
}
else
{
blob->keys[n].off_kid = 0; /* will be fixed up later */
}
blob->keys[n].off_kid = 0; /* Will be fixed up later */
blob->keys[n].flags = 0;
n++;
}
else if ( node->pkt->pkttype == PKT_SECRET_KEY
|| node->pkt->pkttype == PKT_SECRET_SUBKEY )
{
never_reached (); /* actually not yet implemented */
}
}
return 0;
}
static gpg_error_t
pgp_create_key_part (KEYBOXBLOB blob, keybox_openpgp_info_t info)
{
gpg_error_t err;
int n = 0;
struct _keybox_openpgp_key_info *kinfo;
err = pgp_create_key_part_single (blob, n++, &info->primary);
if (err)
return err;
if (info->nsubkeys)
for (kinfo = &info->subkeys; kinfo; kinfo = kinfo->next)
if ((err=pgp_create_key_part_single (blob, n++, kinfo)))
return err;
assert (n == blob->nkeys);
return 0;
}
static int
pgp_create_uid_part (KEYBOXBLOB blob, KBNODE keyblock)
static void
pgp_create_uid_part (KEYBOXBLOB blob, keybox_openpgp_info_t info)
{
KBNODE node;
int n;
int n = 0;
struct _keybox_openpgp_uid_info *u;
for (n=0, node = keyblock; node; node = node->next)
if (info->nuids)
{
if (node->pkt->pkttype == PKT_USER_ID)
for (u = &info->uids; u; u = u->next)
{
PKT_user_id *u = node->pkt->pkt.user_id;
blob->uids[n].off = u->off;
blob->uids[n].len = u->len;
blob->uids[n].flags = 0;
blob->uids[n].validity = 0;
n++;
}
}
assert (n == blob->nuids);
return 0;
}
static int
pgp_create_sig_part (KEYBOXBLOB blob, KBNODE keyblock)
static void
pgp_create_sig_part (KEYBOXBLOB blob)
{
KBNODE node;
int n;
for (n=0, node = keyblock; node; node = node->next)
for (n=0; n < blob->nsigs; n++)
{
if (node->pkt->pkttype == PKT_SIGNATURE)
{
PKT_signature *sig = node->pkt->pkt.signature;
blob->sigs[n] = 0; /* FIXME: check the signature here */
n++;
}
}
assert( n == blob->nsigs );
return 0;
}
static int
pgp_create_blob_keyblock (KEYBOXBLOB blob, KBNODE keyblock)
pgp_create_blob_keyblock (KEYBOXBLOB blob,
const unsigned char *image, size_t imagelen)
{
struct membuf *a = blob->buf;
KBNODE node;
int rc;
int n;
u32 kbstart = a->len;
add_fixup (blob, kbstart);
add_fixup (blob, 8, kbstart);
for (n = 0, node = keyblock; node; node = node->next)
{
rc = build_packet ( a, node->pkt );
if ( rc ) {
gpg_log_error ("build_packet(%d) for keyboxblob failed: %s\n",
node->pkt->pkttype, gpg_errstr(rc) );
return GPGERR_WRITE_FILE;
}
if ( node->pkt->pkttype == PKT_USER_ID )
{
PKT_user_id *u = node->pkt->pkt.user_id;
/* build_packet has set the offset of the name into u ;
* now we can do the fixup */
add_fixup (blob, blob->uids[n].off_addr, u->stored_at);
n++;
}
}
assert (n == blob->nuids);
for (n = 0; n < blob->nuids; n++)
add_fixup (blob, blob->uids[n].off_addr, kbstart + blob->uids[n].off);
add_fixup (blob, a->len - kbstart);
put_membuf (a, image, imagelen);
add_fixup (blob, 12, a->len - kbstart);
return 0;
}
#endif /*KEYBOX_WITH_OPENPGP*/
#ifdef KEYBOX_WITH_X509
@ -686,87 +659,78 @@ create_blob_finish (KEYBOXBLOB blob)
}
#ifdef KEYBOX_WITH_OPENPGP
int
_keybox_create_pgp_blob (KEYBOXBLOB *r_blob, KBNODE keyblock, int as_ephemeral)
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)
{
int rc = 0;
KBNODE node;
gpg_error_t err;
KEYBOXBLOB blob;
*r_blob = NULL;
if (!info->nuids || !info->nsigs)
return gpg_error (GPG_ERR_BAD_PUBKEY);
blob = xtrycalloc (1, sizeof *blob);
if (!blob)
return gpg_error_from_syserror ();
/* fixme: Do some sanity checks on the keyblock */
/* count userids and keys so that we can allocate the arrays */
for (node = keyblock; node; node = node->next)
{
switch (node->pkt->pkttype)
{
case PKT_PUBLIC_KEY:
case PKT_SECRET_KEY:
case PKT_PUBLIC_SUBKEY:
case PKT_SECRET_SUBKEY: blob->nkeys++; break;
case PKT_USER_ID: blob->nuids++; break;
case PKT_SIGNATURE: blob->nsigs++; break;
default: break;
}
}
blob->nkeys = 1 + info->nsubkeys;
blob->keys = xtrycalloc (blob->nkeys, sizeof *blob->keys );
blob->uids = xtrycalloc (blob->nuids, sizeof *blob->uids );
blob->sigs = xtrycalloc (blob->nsigs, sizeof *blob->sigs );
if (!blob->keys || !blob->uids || !blob->sigs)
if (!blob->keys)
{
rc = gpg_error (GPG_ERR_ENOMEM);
err = gpg_error_from_syserror ();
goto leave;
}
blob->nuids = info->nuids;
blob->uids = xtrycalloc (blob->nuids, sizeof *blob->uids );
if (!blob->uids)
{
err = gpg_error_from_syserror ();
goto leave;
}
blob->nsigs = info->nsigs;
blob->sigs = xtrycalloc (blob->nsigs, sizeof *blob->sigs );
if (!blob->sigs)
{
err = gpg_error_from_syserror ();
goto leave;
}
rc = pgp_create_key_part ( blob, keyblock );
if (rc)
goto leave;
rc = pgp_create_uid_part ( blob, keyblock );
if (rc)
goto leave;
rc = pgp_create_sig_part ( blob, keyblock );
if (rc)
err = pgp_create_key_part (blob, info);
if (err)
goto leave;
pgp_create_uid_part (blob, info);
pgp_create_sig_part (blob);
init_membuf (&blob->bufbuf, 1024);
blob->buf = &blob->bufbuf;
rc = create_blob_header (blob, BLOBTYPE_OPENPGP, as_ephemeral);
if (rc)
err = create_blob_header (blob, BLOBTYPE_PGP, as_ephemeral);
if (err)
goto leave;
rc = pgp_create_blob_keyblock (blob, keyblock);
if (rc)
err = pgp_create_blob_keyblock (blob, image, imagelen);
if (err)
goto leave;
rc = create_blob_trailer (blob);
if (rc)
err = create_blob_trailer (blob);
if (err)
goto leave;
rc = create_blob_finish ( blob );
if (rc)
err = create_blob_finish (blob);
if (err)
goto leave;
leave:
release_kid_list (blob->temp_kids);
blob->temp_kids = NULL;
if (rc)
{
keybox_release_blob (blob);
*r_blob = NULL;
}
if (err)
_keybox_release_blob (blob);
else
{
*r_blob = blob;
}
return rc;
return err;
}
#endif /*KEYBOX_WITH_OPENPGP*/
#ifdef KEYBOX_WITH_X509

8
kbx/keybox-defs.h
View File

@ -156,9 +156,11 @@ void _keybox_close_file (KEYBOX_HANDLE hd);
/*-- keybox-blob.c --*/
#ifdef KEYBOX_WITH_OPENPGP
/* fixme */
#endif /*KEYBOX_WITH_OPENPGP*/
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);

2
kbx/keybox-file.c
View File

@ -74,7 +74,7 @@ _keybox_read_blob2 (KEYBOXBLOB *r_blob, FILE *fp, int *skipped_deleted)
}
imagelen = (c1 << 24) | (c2 << 16) | (c3 << 8 ) | c4;
if (imagelen > 500000) /* Sanity check. */
if (imagelen > 1000000) /* Sanity check. */
return gpg_error (GPG_ERR_TOO_LARGE);
if (imagelen < 5)

36
kbx/keybox-search.c
View File

@ -1,5 +1,5 @@
/* keybox-search.c - Search operations
* Copyright (C) 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
* Copyright (C) 2001, 2002, 2003, 2004, 2012 Free Software Foundation, Inc.
*
* This file is part of GnuPG.
*
@ -958,6 +958,40 @@ keybox_search (KEYBOX_HANDLE hd, KEYBOX_SEARCH_DESC *desc, size_t ndesc)
Functions to return a certificate or a keyblock. To be used after
a successful search operation.
*/
/* Return the last found keyblock. Returns 0 on success and stores a
new iobuf at R_IOBUF in that case. */
gpg_error_t
keybox_get_keyblock (KEYBOX_HANDLE hd, iobuf_t *r_iobuf)
{
const unsigned char *buffer;
size_t length;
size_t image_off, image_len;
*r_iobuf = NULL;
if (!hd)
return gpg_error (GPG_ERR_INV_VALUE);
if (!hd->found.blob)
return gpg_error (GPG_ERR_NOTHING_FOUND);
if (blob_get_type (hd->found.blob) != BLOBTYPE_PGP)
return gpg_error (GPG_ERR_WRONG_BLOB_TYPE);
buffer = _keybox_get_blob_image (hd->found.blob, &length);
if (length < 40)
return gpg_error (GPG_ERR_TOO_SHORT);
image_off = get32 (buffer+8);
image_len = get32 (buffer+12);
if (image_off+image_len > length)
return gpg_error (GPG_ERR_TOO_SHORT);
*r_iobuf = iobuf_temp_with_content (buffer+image_off, image_len);
return 0;
}
#ifdef KEYBOX_WITH_X509
/*
Return the last found cert. Caller must free it.

59
kbx/keybox-update.c
View File

@ -1,5 +1,5 @@
/* keybox-update.c - keybox update operations
* Copyright (C) 2001, 2003, 2004 Free Software Foundation, Inc.
* Copyright (C) 2001, 2003, 2004, 2012 Free Software Foundation, Inc.
*
* This file is part of GnuPG.
*
@ -24,6 +24,7 @@
#include <errno.h>
#include <time.h>
#include <unistd.h>
#include <assert.h>
#include "keybox-defs.h"
#include "../common/sysutils.h"
@ -370,6 +371,62 @@ blob_filecopy (int mode, const char *fname, KEYBOXBLOB blob,
}
/* Insert the OpenPGP keyblock {IMAGE,IMAGELEN} into HD. */
gpg_error_t
keybox_insert_keyblock (KEYBOX_HANDLE hd, const void *image, size_t imagelen)
{
gpg_error_t err;
const char *fname;
KEYBOXBLOB blob;
size_t nparsed;
struct _keybox_openpgp_info info;
if (!hd)
return gpg_error (GPG_ERR_INV_HANDLE);
if (!hd->kb)
return gpg_error (GPG_ERR_INV_HANDLE);
fname = hd->kb->fname;
if (!fname)
return gpg_error (GPG_ERR_INV_HANDLE);
/* Close this one otherwise we will mess up the position for a next
search. Fixme: it would be better to adjust the position after
the write operation. */
_keybox_close_file (hd);
err = _keybox_parse_openpgp (image, imagelen, &nparsed, &info);
if (err)
return err;
assert (nparsed <= imagelen);
err = _keybox_create_openpgp_blob (&blob, &info, image, imagelen,
hd->ephemeral);
_keybox_destroy_openpgp_info (&info);
if (!err)
{
err = blob_filecopy (1, fname, blob, hd->secret, 0);
_keybox_release_blob (blob);
/* if (!rc && !hd->secret && kb_offtbl) */
/* { */
/* update_offset_hash_table_from_kb (kb_offtbl, kb, 0); */
/* } */
}
return err;
}
/* Update the current key at HD with the given OpenPGP keyblock in
{IMAGE,IMAGELEN}. */
gpg_error_t
keybox_update_keyblock (KEYBOX_HANDLE hd, const void *image, size_t imagelen)
{
(void)hd;
(void)image;
(void)imagelen;
return gpg_error (GPG_ERR_NOT_IMPLEMENTED);
}
#ifdef KEYBOX_WITH_X509
int

9
kbx/keybox.h
View File

@ -1,5 +1,5 @@
/* keybox.h - Keybox operations
* Copyright (C) 2001, 2003 Free Software Foundation, Inc.
* Copyright (C) 2001, 2003, 2012 Free Software Foundation, Inc.
*
* This file is part of GnuPG.
*
@ -26,6 +26,7 @@ extern "C" {
#endif
#endif
#include "../common/iobuf.h"
#include "keybox-search-desc.h"
#define KEYBOX_WITH_OPENPGP 1
@ -79,6 +80,7 @@ int keybox_lock (KEYBOX_HANDLE hd, int yes);
int _keybox_write_header_blob (FILE *fp);
/*-- keybox-search.c --*/
gpg_error_t keybox_get_keyblock (KEYBOX_HANDLE hd, iobuf_t *r_iobuf);
#ifdef KEYBOX_WITH_X509
int keybox_get_cert (KEYBOX_HANDLE hd, ksba_cert_t *ret_cert);
#endif /*KEYBOX_WITH_X509*/
@ -89,6 +91,11 @@ int keybox_search (KEYBOX_HANDLE hd, KEYBOX_SEARCH_DESC *desc, size_t ndesc);
/*-- keybox-update.c --*/
gpg_error_t keybox_insert_keyblock (KEYBOX_HANDLE hd,
const void *image, size_t imagelen);
gpg_error_t keybox_update_keyblock (KEYBOX_HANDLE hd,
const void *image, size_t imagelen);
#ifdef KEYBOX_WITH_X509
int keybox_insert_cert (KEYBOX_HANDLE hd, ksba_cert_t cert,
unsigned char *sha1_digest);