/*
* Start the next search on this handle right at the beginning
*/
gpg_error_t
keydb_search_reset (KEYDB_HANDLE hd)
{
gpg_error_t rc = 0;
int i;
if (!hd)
return gpg_error (GPG_ERR_INV_ARG);
keyblock_cache_clear ();
if (DBG_CLOCK)
log_clock ("keydb_search_reset");
hd->current = 0;
hd->found = -1;
/* Now reset all resources. */
for (i=0; !rc && i < hd->used; i++)
{
switch (hd->active[i].type)
{
case KEYDB_RESOURCE_TYPE_NONE:
break;
case KEYDB_RESOURCE_TYPE_KEYRING:
rc = keyring_search_reset (hd->active[i].u.kr);
break;
case KEYDB_RESOURCE_TYPE_KEYBOX:
rc = keybox_search_reset (hd->active[i].u.kb);
break;
}
}
return rc;
}
/*
* Start the next search on this handle right at the beginning
*/
gpg_error_t
keydb_search_reset (KEYDB_HANDLE hd)
{
int i;
gpg_error_t rc = 0;
if (!hd)
return gpg_error (GPG_ERR_INV_VALUE);
hd->current = 0;
hd->found = -1;
/* and reset all resources */
for (i=0; !rc && i < hd->used; i++)
{
switch (hd->active[i].type)
{
case KEYDB_RESOURCE_TYPE_NONE:
break;
case KEYDB_RESOURCE_TYPE_KEYBOX:
rc = keybox_search_reset (hd->active[i].u.kr);
break;
}
}
return rc;
}
/*
* Start the next search on this handle right at the beginning
*/
int
keydb_search_reset (KEYDB_HANDLE hd)
{
int i, rc = 0;
if (!hd)
return gpg_error (GPG_ERR_INV_VALUE);
hd->current = 0;
hd->found = -1;
/* and reset all resources */
for (i=0; !rc && i < hd->used; i++)
{
switch (hd->active[i].type)
{
case KEYDB_RESOURCE_TYPE_NONE:
break;
case KEYDB_RESOURCE_TYPE_KEYBOX:
rc = keybox_search_reset (hd->active[i].u.kr);
break;
}
}
return rc; /* fixme: we need to map error codes or share them with
all modules*/
}
/* Note: When in ephemeral mode the search function does visit all
blobs but in standard mode, blobs flagged as ephemeral are ignored. */
int
keybox_search (KEYBOX_HANDLE hd, KEYBOX_SEARCH_DESC *desc, size_t ndesc)
{
int rc;
size_t n;
int need_words, any_skip;
KEYBOXBLOB blob = NULL;
struct sn_array_s *sn_array = NULL;
if (!hd)
return gpg_error (GPG_ERR_INV_VALUE);
/* clear last found result */
if (hd->found.blob)
{
_keybox_release_blob (hd->found.blob);
hd->found.blob = NULL;
}
if (hd->error)
return hd->error; /* still in error state */
if (hd->eof)
return -1; /* still EOF */
/* figure out what information we need */
need_words = any_skip = 0;
for (n=0; n < ndesc; n++)
{
switch (desc[n].mode)
{
case KEYDB_SEARCH_MODE_WORDS:
need_words = 1;
break;
case KEYDB_SEARCH_MODE_FIRST:
/* always restart the search in this mode */
keybox_search_reset (hd);
break;
default:
break;
}
if (desc[n].skipfnc)
any_skip = 1;
if (desc[n].snlen == -1 && !sn_array)
{
sn_array = xtrycalloc (ndesc, sizeof *sn_array);
if (!sn_array)
return (hd->error = gpg_error_from_syserror ());
}
}
(void)need_words; /* Not yet implemented. */
if (!hd->fp)
{
hd->fp = fopen (hd->kb->fname, "rb");
if (!hd->fp)
{
hd->error = gpg_error_from_syserror ();
xfree (sn_array);
return hd->error;
}
}
/* Kludge: We need to convert an SN given as hexstring to its binary
representation - in some cases we are not able to store it in the
search descriptor, because due to the way we use it, it is not
possible to free allocated memory. */
if (sn_array)
{
const unsigned char *s;
int i, odd;
size_t snlen;
for (n=0; n < ndesc; n++)
{
if (!desc[n].sn)
;
else if (desc[n].snlen == -1)
{
unsigned char *sn;
s = desc[n].sn;
for (i=0; *s && *s != '/'; s++, i++)
;
odd = (i & 1);
snlen = (i+1)/2;
sn_array[n].sn = xtrymalloc (snlen);
if (!sn_array[n].sn)
{
hd->error = gpg_error_from_syserror ();
release_sn_array (sn_array, n);
return hd->error;
}
sn_array[n].snlen = snlen;
sn = sn_array[n].sn;
s = desc[n].sn;
if (odd)
{
*sn++ = xtoi_1 (s);
s++;
}
for (; *s && *s != '/'; s += 2)
*sn++ = xtoi_2 (s);
}
else
{
const unsigned char *sn;
sn = desc[n].sn;
snlen = desc[n].snlen;
sn_array[n].sn = xtrymalloc (snlen);
if (!sn_array[n].sn)
{
hd->error = gpg_error_from_syserror ();
release_sn_array (sn_array, n);
return hd->error;
}
sn_array[n].snlen = snlen;
memcpy (sn_array[n].sn, sn, snlen);
}
}
}
for (;;)
{
unsigned int blobflags;
_keybox_release_blob (blob); blob = NULL;
rc = _keybox_read_blob (&blob, hd->fp);
if (rc)
break;
if (blob_get_type (blob) == BLOBTYPE_HEADER)
continue;
blobflags = blob_get_blob_flags (blob);
if (!hd->ephemeral && (blobflags & 2))
continue; /* Not in ephemeral mode but blob is flagged ephemeral. */
for (n=0; n < ndesc; n++)
{
switch (desc[n].mode)
{
case KEYDB_SEARCH_MODE_NONE:
never_reached ();
break;
case KEYDB_SEARCH_MODE_EXACT:
if (has_subject_or_alt (blob, desc[n].u.name, 0))
goto found;
break;
case KEYDB_SEARCH_MODE_MAIL:
if (has_mail (blob, desc[n].u.name, 0))
goto found;
break;
case KEYDB_SEARCH_MODE_MAILSUB:
if (has_mail (blob, desc[n].u.name, 1))
goto found;
break;
case KEYDB_SEARCH_MODE_SUBSTR:
if (has_subject_or_alt (blob, desc[n].u.name, 1))
goto found;
break;
case KEYDB_SEARCH_MODE_MAILEND:
case KEYDB_SEARCH_MODE_WORDS:
never_reached (); /* not yet implemented */
break;
case KEYDB_SEARCH_MODE_ISSUER:
if (has_issuer (blob, desc[n].u.name))
goto found;
break;
case KEYDB_SEARCH_MODE_ISSUER_SN:
if (has_issuer_sn (blob, desc[n].u.name,
sn_array? sn_array[n].sn : desc[n].sn,
sn_array? sn_array[n].snlen : desc[n].snlen))
goto found;
break;
case KEYDB_SEARCH_MODE_SN:
if (has_sn (blob, sn_array? sn_array[n].sn : desc[n].sn,
sn_array? sn_array[n].snlen : desc[n].snlen))
goto found;
break;
case KEYDB_SEARCH_MODE_SUBJECT:
if (has_subject (blob, desc[n].u.name))
goto found;
break;
case KEYDB_SEARCH_MODE_SHORT_KID:
if (has_short_kid (blob, desc[n].u.kid[1]))
goto found;
break;
case KEYDB_SEARCH_MODE_LONG_KID:
if (has_long_kid (blob, desc[n].u.kid[0], desc[n].u.kid[1]))
goto found;
break;
case KEYDB_SEARCH_MODE_FPR:
case KEYDB_SEARCH_MODE_FPR20:
if (has_fingerprint (blob, desc[n].u.fpr))
goto found;
break;
case KEYDB_SEARCH_MODE_KEYGRIP:
if (has_keygrip (blob, desc[n].u.grip))
goto found;
break;
case KEYDB_SEARCH_MODE_FIRST:
goto found;
break;
case KEYDB_SEARCH_MODE_NEXT:
goto found;
break;
default:
rc = gpg_error (GPG_ERR_INV_VALUE);
goto found;
}
}
continue;
found:
for (n=any_skip?0:ndesc; n < ndesc; n++)
{
/* if (desc[n].skipfnc */
/* && desc[n].skipfnc (desc[n].skipfncvalue, aki, NULL)) */
/* break; */
}
if (n == ndesc)
break; /* got it */
}
if (!rc)
{
hd->found.blob = blob;
}
else if (rc == -1)
{
_keybox_release_blob (blob);
hd->eof = 1;
}
else
{
_keybox_release_blob (blob);
hd->error = rc;
}
if (sn_array)
release_sn_array (sn_array, ndesc);
return rc;
}
