cdk_error_t
cdk_keydb_get_sk( cdk_keydb_hd_t hd, u32 * keyid, cdk_pkt_seckey_t* ret_sk )
{
cdk_kbnode_t snode, node;
cdk_pkt_seckey_t sk = NULL;
int rc = 0;
if( !keyid || !ret_sk )
return CDK_Inv_Value;
if( !hd )
return CDK_Error_No_Keyring;
rc = cdk_keydb_get_bykeyid( hd, keyid, &snode );
if( rc )
goto leave;
node = keydb_find_bykeyid( snode, keyid );
if( !node ) {
rc = CDK_Error_No_Key;
goto leave;
}
sk = node->pkt->pkt.secret_key;
_cdk_kbnode_clone( node );
cdk_kbnode_release( snode );
leave:
*ret_sk = sk;
return rc;
}
/**
* gnutls_openpgp_keyring_get_crt_count:
* @ring: is an OpenPGP key ring
*
* This function will return the number of OpenPGP certificates
* present in the given keyring.
*
* Returns: the number of subkeys, or a negative error code on error.
**/
int gnutls_openpgp_keyring_get_crt_count(gnutls_openpgp_keyring_t ring)
{
cdk_kbnode_t knode;
cdk_error_t err;
cdk_keydb_search_t st;
int ret = 0;
err =
cdk_keydb_search_start(&st, ring->db, CDK_DBSEARCH_NEXT, NULL);
if (err != CDK_Success) {
gnutls_assert();
return _gnutls_map_cdk_rc(err);
}
do {
err = cdk_keydb_search(st, ring->db, &knode);
if (err != CDK_Error_No_Key && err != CDK_Success) {
gnutls_assert();
cdk_keydb_search_release(st);
return _gnutls_map_cdk_rc(err);
}
if (knode_is_pkey(knode))
ret++;
cdk_kbnode_release(knode);
}
while (err != CDK_Error_No_Key);
cdk_keydb_search_release(st);
return ret;
}
int
_cdk_keydb_get_sk_byusage( cdk_keydb_hd_t hd, const char * name,
cdk_pkt_seckey_t* ret_sk, int usage )
{
cdk_kbnode_t knode = NULL, node = NULL;
cdk_pkt_seckey_t sk = NULL;
int rc = 0;
if( !ret_sk || !usage )
return CDK_Inv_Value;
if( !hd )
return CDK_Error_No_Keyring;
rc = cdk_keydb_search_start( hd, CDK_DBSEARCH_AUTO, (char *)name );
if( !rc )
rc = cdk_keydb_search( hd, &knode );
if( rc )
goto leave;
node = keydb_find_byusage( knode, usage, 0 );
if( !node ) {
rc = CDK_Unusable_Key;
goto leave;
}
sk = node->pkt->pkt.secret_key;
_cdk_kbnode_clone( node );
cdk_kbnode_release( knode );
leave:
*ret_sk = sk;
return rc;
}
cdk_error_t
cdk_keydb_get_pk( cdk_keydb_hd_t hd, u32 * keyid, cdk_pkt_pubkey_t* r_pk )
{
cdk_kbnode_t knode = NULL, node = NULL;
cdk_pkt_pubkey_t pk = NULL;
int rc = 0;
if( !keyid || !r_pk )
return CDK_Inv_Value;
if( !hd )
return CDK_Error_No_Keyring;
rc = cdk_keydb_search_start( hd, !keyid[0]?
CDK_DBSEARCH_SHORT_KEYID : CDK_DBSEARCH_KEYID,
keyid );
if( !rc )
rc = cdk_keydb_search( hd, &knode );
if( rc )
goto leave;
node = keydb_find_bykeyid( knode, keyid );
if( !node ) {
rc = CDK_Error_No_Key;
goto leave;
}
_cdk_copy_pubkey( &pk, node->pkt->pkt.public_key );
cdk_kbnode_release( knode );
leave:
*r_pk = pk;
return rc;
}
int
gnutls_openpgp_count_key_names (const gnutls_datum_t * cert)
{
cdk_kbnode_t knode, p, ctx;
cdk_packet_t pkt;
int nuids;
if (cert == NULL)
{
gnutls_assert ();
return 0;
}
if (cdk_kbnode_read_from_mem (&knode, cert->data, cert->size))
{
gnutls_assert ();
return 0;
}
ctx = NULL;
for (nuids = 0;;)
{
p = cdk_kbnode_walk (knode, &ctx, 0);
if (!p)
break;
pkt = cdk_kbnode_get_packet (p);
if (pkt->pkttype == CDK_PKT_USER_ID)
nuids++;
}
cdk_kbnode_release (knode);
return nuids;
}
/**
* gnutls_openpgp_privkey_deinit:
* @key: The structure to be initialized
*
* This function will deinitialize a key structure.
**/
void gnutls_openpgp_privkey_deinit(gnutls_openpgp_privkey_t key)
{
if (!key)
return;
if (key->knode) {
cdk_kbnode_release(key->knode);
key->knode = NULL;
}
gnutls_free(key);
}
/**
* gnutls_openpgp_key_deinit - This function deinitializes memory used by a gnutls_openpgp_key_t structure
* @key: The structure to be initialized
*
* This function will deinitialize a key structure.
*
**/
void
gnutls_openpgp_key_deinit (gnutls_openpgp_key_t key)
{
if (!key)
return;
if (key->knode)
{
cdk_kbnode_release (key->knode);
key->knode = NULL;
}
if (key->inp)
cdk_stream_close (key->inp);
gnutls_free (key);
}
/**
* gnutls_openpgp_keyring_get_crt:
* @ring: Holds the keyring.
* @idx: the index of the certificate to export
* @cert: An uninitialized #gnutls_openpgp_crt_t structure
*
* This function will extract an OpenPGP certificate from the given
* keyring. If the index given is out of range
* %GNUTLS_E_REQUESTED_DATA_NOT_AVAILABLE will be returned. The
* returned structure needs to be deinited.
*
* Returns: %GNUTLS_E_SUCCESS on success, or an error code.
**/
int
gnutls_openpgp_keyring_get_crt (gnutls_openpgp_keyring_t ring,
unsigned int idx, gnutls_openpgp_crt_t * cert)
{
cdk_kbnode_t knode;
cdk_error_t err;
int ret = 0;
unsigned int count = 0;
cdk_keydb_search_t st;
err = cdk_keydb_search_start (&st, ring->db, CDK_DBSEARCH_NEXT, NULL);
if (err != CDK_Success)
{
gnutls_assert ();
return _gnutls_map_cdk_rc (err);
}
do
{
err = cdk_keydb_search (st, ring->db, &knode);
if (err != CDK_EOF && err != CDK_Success)
{
gnutls_assert ();
cdk_keydb_search_release (st);
return _gnutls_map_cdk_rc (err);
}
if (idx == count && err == CDK_Success)
{
ret = gnutls_openpgp_crt_init (cert);
if (ret == 0)
(*cert)->knode = knode;
cdk_keydb_search_release (st);
return ret;
}
if (knode_is_pkey (knode))
count++;
cdk_kbnode_release (knode);
}
while (err != CDK_EOF);
cdk_keydb_search_release (st);
return GNUTLS_E_REQUESTED_DATA_NOT_AVAILABLE;
}
cdk_error_t
cdk_keydb_import( cdk_keydb_hd_t hd, cdk_kbnode_t knode, int *result )
{
cdk_kbnode_t node, chk = NULL;
cdk_packet_t pkt;
cdk_stream_t out;
u32 keyid[2];
int rc = 0, is_sk = 0;
if( !hd || !knode )
return CDK_Inv_Value;
memset( result, 0, 4 * sizeof (int) );
pkt = find_key_packet( knode, &is_sk );
if( !pkt )
return CDK_Inv_Packet;
result[is_sk] = 1;
_cdk_pkt_get_keyid( pkt, keyid );
cdk_keydb_get_bykeyid( hd, keyid, &chk );
if( chk ) { /* fixme: search for new signatures */
cdk_kbnode_release( chk );
return 0;
}
if( hd->buf ) {
cdk_stream_close( hd->buf );
hd->buf = NULL;
}
rc = _cdk_stream_append( hd->name, &out );
if( rc )
return rc;
for( node = knode; node; node = node->next ) {
if( node->pkt->pkttype == CDK_PKT_RING_TRUST )
continue; /* No uniformed syntax for this packet */
rc = cdk_pkt_write( out, node->pkt );
if( rc )
break;
}
if( !rc )
result[is_sk? 3 : 2] = 1;
cdk_stream_close( out );
if( !hd->no_cache )
cdk_keydb_idx_rebuild( hd );
return rc;
}
int
_cdk_keydb_get_pk_byusage( cdk_keydb_hd_t hd, const char * name,
cdk_pkt_pubkey_t* ret_pk, int usage )
{
cdk_kbnode_t knode, node = NULL;
cdk_pkt_pubkey_t pk = NULL;
const char * s;
int rc = 0;
if( !ret_pk || !usage )
return CDK_Inv_Value;
if( !hd )
return CDK_Error_No_Keyring;
rc = cdk_keydb_search_start( hd, CDK_DBSEARCH_AUTO, (char *)name );
if( !rc )
rc = cdk_keydb_search( hd, &knode );
if( rc )
goto leave;
node = keydb_find_byusage( knode, usage, 1 );
if( !node ) {
rc = CDK_Unusable_Key;
goto leave;
}
_cdk_copy_pubkey( &pk, node->pkt->pkt.public_key );
for( node = knode; node; node = node->next ) {
if( node->pkt->pkttype == CDK_PKT_USER_ID ) {
s = node->pkt->pkt.user_id->name;
if( pk && !pk->uid && _cdk_memistr( s, strlen( s ), name ) ) {
_cdk_copy_userid( &pk->uid, node->pkt->pkt.user_id );
break;
}
}
}
cdk_kbnode_release( knode );
leave:
*ret_pk = pk;
return rc;
}
/**
* cdk_listkey_next:
* @ctx: list key context
* @r_key: the pointer to the new key node object
*
* Retrieve the next key from the pattern of the key list context.
**/
cdk_error_t
cdk_listkey_next( cdk_listkey_t ctx, cdk_kbnode_t * ret_key )
{
if( !ctx || !ret_key )
return CDK_Inv_Value;
if( !ctx->init )
return CDK_Inv_Mode;
if( ctx->type && ctx->u.patt[0] == '*' )
return cdk_keydb_get_keyblock( ctx->inp, ret_key );
else if( ctx->type ) {
cdk_kbnode_t node;
struct cdk_dbsearch_s ks;
int rc;
for( ;; ) {
rc = cdk_keydb_get_keyblock( ctx->inp, &node );
if( rc )
return rc;
memset( &ks, 0, sizeof ks );
ks.type = CDK_DBSEARCH_SUBSTR;
ks.u.pattern = ctx->u.patt;
if( find_by_pattern( node, &ks ) ) {
*ret_key = node;
return 0;
}
cdk_kbnode_release( node );
node = NULL;
}
}
else {
if( !ctx->t )
ctx->t = ctx->u.fpatt;
else if( ctx->t->next )
ctx->t = ctx->t->next;
else
return CDK_EOF;
return cdk_keydb_get_bypattern( ctx->db, ctx->t->d, ret_key );
}
return CDK_General_Error;
}
cdk_error_t
cdk_keydb_export( cdk_keydb_hd_t hd, cdk_stream_t out, cdk_strlist_t remusr )
{
cdk_kbnode_t knode, node;
cdk_strlist_t r;
int old_ctb = 0;
int rc = 0;
for( r = remusr; r; r = r->next ) {
rc = cdk_keydb_search_start( hd, CDK_DBSEARCH_AUTO, r->d );
if( !rc )
rc = cdk_keydb_search( hd, &knode );
if( rc )
break;
for( node = knode; node; node = node->next ) {
/* those packets are not intended for the real wolrd */
if( node->pkt->pkttype == CDK_PKT_RING_TRUST )
continue;
/* we never export local signed signatures */
if( node->pkt->pkttype == CDK_PKT_SIGNATURE &&
!node->pkt->pkt.signature->flags.exportable )
continue;
/* filter out invalid signatures */
if( node->pkt->pkttype == CDK_PKT_SIGNATURE
&& !KEY_CAN_SIGN (node->pkt->pkt.signature->pubkey_algo) )
continue;
if( node->pkt->pkttype == CDK_PKT_PUBLIC_KEY
&& node->pkt->pkt.public_key->version == 3 )
old_ctb = 1;
node->pkt->old_ctb = old_ctb;
rc = cdk_pkt_write( out, node->pkt );
if( rc )
break;
}
cdk_kbnode_release( knode );
knode = NULL;
}
return rc;
}
/**
* cdk_keydb_search:
* @hd: the keydb object
* @ks: the keydb search object
* @ret_key: kbnode object to store the key
*
* Search for a key in the given keyring. The search mode is handled
* via @ks. If the key was found, @ret_key contains the key data.
**/
cdk_error_t
cdk_keydb_search( cdk_keydb_hd_t hd, cdk_kbnode_t * ret_key )
{
cdk_stream_t kr = NULL;
cdk_kbnode_t knode = NULL;
cdk_dbsearch_t ks;
u32 off = 0;
size_t pos = 0;
int key_found = 0, cache_hit = 0;
int rc = 0;
if( !hd || !ret_key )
return CDK_Inv_Value;
*ret_key = NULL;
hd->search = 1;
rc = cdk_keydb_open( hd, &kr );
if( rc )
return rc;
rc = keydb_pos_from_cache( hd, hd->dbs, &cache_hit, &off );
if( rc )
return rc;
ks = hd->dbs;
while( !key_found && !rc ) {
if( cache_hit && ks->type != CDK_DBSEARCH_NEXT )
cdk_stream_seek( kr, off );
pos = cdk_stream_tell( kr );
rc = cdk_keydb_get_keyblock( kr, &knode );
if( rc ) {
if( rc == CDK_EOF && knode )
rc = 0;
if( !knode && rc == CDK_EOF )
rc = CDK_Error_No_Key;
if( rc )
break;
}
switch( ks->type ) {
case CDK_DBSEARCH_SHORT_KEYID:
case CDK_DBSEARCH_KEYID:
key_found = find_by_keyid( knode, ks );
break;
case CDK_DBSEARCH_FPR:
key_found = find_by_fpr( knode, ks );
break;
case CDK_DBSEARCH_EXACT:
case CDK_DBSEARCH_SUBSTR:
key_found = find_by_pattern( knode, ks );
break;
case CDK_DBSEARCH_NEXT:
key_found = knode? 1 : 0;
break;
}
if( key_found ) {
if( !keydb_cache_find( hd->cache, ks ) )
keydb_cache_add( hd, ks, pos );
break;
}
cdk_kbnode_release( knode );
knode = NULL;
}
hd->search = 0;
*ret_key = key_found? knode : NULL;
return rc;
}
/*-
* gnutls_openpgp_get_key - Retrieve a key from the keyring.
* @key: the destination context to save the key.
* @keyring: the datum struct that contains all keyring information.
* @attr: The attribute (keyid, fingerprint, ...).
* @by: What attribute is used.
*
* This function can be used to retrieve keys by different pattern
* from a binary or a file keyring.
-*/
int
gnutls_openpgp_get_key (gnutls_datum_t * key,
gnutls_openpgp_keyring_t keyring, key_attr_t by,
opaque * pattern)
{
cdk_kbnode_t knode = NULL;
unsigned long keyid[2];
unsigned char *buf;
void *desc;
size_t len;
int rc = 0;
cdk_keydb_search_t st;
if (!key || !keyring || by == KEY_ATTR_NONE)
{
gnutls_assert ();
return GNUTLS_E_INVALID_REQUEST;
}
memset (key, 0, sizeof *key);
if (by == KEY_ATTR_SHORT_KEYID)
{
keyid[0] = _gnutls_read_uint32 (pattern);
desc = keyid;
}
else if (by == KEY_ATTR_KEYID)
{
keyid[0] = _gnutls_read_uint32 (pattern);
keyid[1] = _gnutls_read_uint32 (pattern + 4);
desc = keyid;
}
else
desc = pattern;
rc = cdk_keydb_search_start (&st, keyring->db, by, desc);
if (!rc)
rc = cdk_keydb_search (st, keyring->db, &knode);
cdk_keydb_search_release (st);
if (rc)
{
rc = _gnutls_map_cdk_rc (rc);
goto leave;
}
if (!cdk_kbnode_find (knode, CDK_PKT_PUBLIC_KEY))
{
rc = GNUTLS_E_OPENPGP_GETKEY_FAILED;
goto leave;
}
/* We let the function allocate the buffer to avoid
to call the function twice. */
rc = cdk_kbnode_write_to_mem_alloc (knode, &buf, &len);
if (!rc)
datum_append (key, buf, len);
gnutls_free (buf);
leave:
cdk_kbnode_release (knode);
return rc;
}
