* g10/call-agent.c (readkey_status_cb): New.
(agent_scd_readkey): Add new arg r_keytime and allow NULL for
r_result. Change all callers.
(agent_readkey): Minor code reformatting.
* g10/keygen.c (pCARDKEY): New.
(struct para_data_s): Add u.bool.
(get_parameter_bool): New.
(do_create_from_keygrip): Add arg cardkey and make use of it.
(ask_algo): Add args r_cardkey and r_keytime. Read the keytime of the
selected card key and return it.
(generate_keypair): Store CARDKEY and KEYTIME.
(do_generate_keypair): Pass CARDKEY to do_create_from_keygrip.
(generate_subkeypair): Ditto.
--
This allows to first create keys on the card (e.g. using gpg-card)
even without having any public key for OpenPGP. Then the key
generation option 14 (cardkey) can be used to create a primary OpenPGP
key from the key on the card.
There are still a couple of problems related to the agent which
creates the stub key and may run into problems if creating a second
key from the card. This will be fixed in a future patch.
Signed-off-by: Werner Koch <wk@gnupg.org>
9c719c9c1f