* agent/call-scd.c (handle_pincache_get): Set PIN to NULL. Also add
DBG_CACHE conditionals and don't return the pin in the debug output.
--
This is part of
GnuPG-bug-id: 7129
Co-authored-by: Jakub Jelen <jjelen@redhat.com>
* agent/call-scd.c (padding_info_cb): Allow NULL.
(agent_card_pkdecrypt): Likewise.
* agent/divert-scd.c (divert_pkdecrypt): Likewise.
* agent/divert-tpm2.c (divert_tpm2_pkdecrypt): Likewise.
--
It's for RSA PKCD#1 encoding if the decrypt operation removes padding
or not. When caller knows it's not RSA, this information is no use
and it is better to allow NULL with the variable R_PADDING.
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
* scd/app-openpgp.c (send_keypair_info): Emit the algo string as part
of a KEYPAIRINFO.
* scd/command.c (do_readkey): Ditto.
* scd/app-piv.c (do_readkey): Ditto.
* scd/app-nks.c (do_learn_status_core): Ditto.
(struct fid_cache_s): Add field algostr.
(flush_fid_cache): Release it.
(keygripstr_from_pk_file): Fill it and add it to the cache. Use a
single exit label.
* scd/app-help.c (app_help_get_keygrip_string_pk): Add new arg
r_algostr. Change all callers.
--
This is helpful so that callers do not need to parse the key for this
basic information. Use "scd readkey --info-only" to return the info
status line instead of the key material; using just --info returns the
info in addition to the key material.
Signed-off-by: Werner Koch <wk@gnupg.org>
* common/stringhelp.h (split_fields): Use const * for the strings in
the ARRAY.
(split_fields_colon): Likewise.
* common/stringhelp.c (split_fields, split_fields_colon): Fix
the implementation.
* agent/call-scd.c, agent/command.c: Follow the change.
* common/t-stringhelp.c, dirmngr/loadswdb.c: Likewise.
* g10/call-agent.c, tools/card-call-scd.c: Likewise.
* tools/card-yubikey.c, tools/gpg-card.c: Likewise.
* tools/gpg-card.h, tools/gpg-wks-client.c: Likewise.
* tools/gpgconf-comp.c, tools/gpgconf.c: Likewise.
* tools/wks-util.c: Likewise.
--
The strings in the ARRAY don't need to be released by caller, as those
are references. It's easier to follow the code when it's explicitly
const *.
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
* agent/call-scd.c: Factor re-usable code out to ...
* agent/call-daemon.c: new. Store infos in an array to allow for
other backend daemons.
* agent/Makefile.am (gpg_agent_SOURCES): Add new file.
* agent/agent.h: Include assuan.h.
(enum daemon_type): New.
(opt): Replace scdaemon_program by daemon_program array. Replace
scd_local by a array d_local. Change users accordingly.
--
The model I'm using for a TPM daemon is the current scdaemon. That
includes start and stop handlers plus liveness checks and an assuan
socket generator. To avoid massive code duplication (and save me a
lot of effort), I've elected to strip this code out of call-scd.c into
a generic framework which can then be reused as is by the TPM handling
daemon.
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Co-authored-by: Werner Koch <wk@gnupg.org>
Modified original patch for 2.2 heavily to fit the new framework used
in master (gnupg 2.3)
Signed-off-by: Werner Koch <wk@gnupg.org>
* agent/agent.h (struct server_control_s): Add field digest.data.
* agent/gpg-agent.c (agent_deinit_default_ctrl): Free that field.
* agent/command.c (reset_notify): Ditto.
(start_command_handler): ditto.
(cmd_sethash): Add new option --inquire.
* agent/call-scd.c (agent_card_pksign): For now return an error if
inquire mode was used.
* agent/command-ssh.c (ssh_handler_sign_request): Make sure
digest.data is cleared.
* agent/divert-scd.c (divert_pksign): Implement inquire mode.
* agent/pksign.c (agent_pksign_do): Ditto.
--
This is required to support EdDSA according to RFC8410.
GnuPG-bug-id: 4888
* agent/call-scd.c (agent_card_serialno): Allow NULL for R_SERIAL.
(struct readkey_status_parm_s): New.
(readkey_status_cb): New.
(agent_card_readkey): Add optional arg R_KEYREF and change all
callers.
* agent/findkey.c (key_parms_from_sexp): Allow also a "public-key".
* agent/divert-scd.c (ask_for_card): Allow for SHADOW_INFO being NULL.
* agent/pksign.c (agent_pksign_do): Fallback to sign with an on-card
if there is no stub key yet. Create the stub key. Also fixed a
misnaming between s_pkey and s_skey.
--
This change allows to create OpenPGP keys directly from a card without
first making sure that a stub key exists. It is also the less
surprising behaviour.
Signed-off-by: Werner Koch <wk@gnupg.org>
* scd/app.c (maybe_switch_app): Factor reselect code out to ...
(run_reselect): new.
(app_write_learn_status): Tweak diagnostics.
(app_do_with_keygrip): Run reselect if a card has more than one
switchable application.
* agent/call-scd.c (agent_card_serialno): Ditto.
* tools/card-call-scd.c (start_agent): Use option --all with SERIALNO.
(scd_serialno): Ditto.
Signed-off-by: Werner Koch <wk@gnupg.org>
* agent/call-scd.c (handle_pincache_put): Do not decrypt.
(handle_pincache_get): New.
(inq_needpin): Call it.
* scd/command.c (set_key_for_pincache): New.
(pincache_put): Restructure and set key.
(pincache_get): Ditto.
--
This change does away with encrypting and decrypting the cached PIN in
the agent. There is no need for this we can simply cache the
cryptogram and let scdaemon decrypt after retrieving it from the
agent. This way we do not need to share a key between gpg-agent and
scdaemon and further the cached content is invalid after the scdaemon
process has been replaced.
Signed-off-by: Werner Koch <wk@gnupg.org>
* agent/agent.h (struct card_key_info_s): New.
(divert_pksign, divert_pkdecrypt): New API.
* agent/call-scd.c (card_keyinfo_cb): New.
(agent_card_free_keyinfo, agent_card_keyinfo): New.
* agent/divert-scd.c (ask_for_card): Having GRIP argument,
ask scdaemon with agent_card_keyinfo.
(divert_pksign, divert_pkdecrypt): Ditto.
* agent/pkdecrypt.c (agent_pkdecrypt): Supply GRIP.
* agent/pksign.c (agent_pksign_do): Ditto.
--
We are going to relax the requirment for SERIALNO of card. It's OK,
when a card doesn't have recorded SERIALNO. If a card has a key
with GRIP, it can be used.
GnuPG-bug-id: 2291, 4301
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
* agent/call-scd.c (start_scd): Acquire START_SCD_LOCK for
SCD_LOCAL_LIST. Move common case code to fast path.
Release START_SCD_LOCK before calling unlock_scd.
When new CTX is allocated, clear INVALID flag.
(agent_reset_scd): Serialize the access to SCD_LOCAL_LIST by
START_SCD_LOCK.
--
GnuPG-bug-id: 4377
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
* scd/app-piv.c (concat_tlv_list): Add arg 'secure' and adjust
callers.
(writekey_rsa, writekey_ecc): New.
(do_writekey): New.
(do_writecert): Provide a better error message for an empty cert.
(app_select_piv): Register do_writekey.
* scd/iso7816.c (iso7816_send_apdu): New.
* scd/app-common.h (APP_WRITEKEY_FLAG_FORCE): New.
* agent/command.c (cmd_keytocard): Make the timestamp optional.
* tools/card-call-scd.c (inq_writekey_parms): Remove.
(scd_writekey): Rewrite.
* tools/gpg-card.c (cmd_writekey): New.
(enum cmdids): Add cmdWRITEKEY.
(dispatch_command, interactive_loop): Call cmd_writekey.
--
This has been tested with gpgsm and RSA keys. For ECC keys only
partly tested using the sample OpenPGP nistp256 and nistp384 keys
because gpgsm does not yet support ECC certificates and thus we can't
write the certificates to the cert object after a writekey. Note that
they nevertheless show up in "gpgcard list" because gpg-card searches
for them in gpg and gpgsm. However, this does not work completely.
Signed-off-by: Werner Koch <wk@gnupg.org>
* agent/command.c (cmd_keytocard): Make timestamp optional. Use
modern parser function.
* agent/call-scd.c (agent_card_writekey): Rename an arg and for
clarity return gpg_error_t instead of int.
* agent/divert-scd.c (divert_writekey): Ditto.
Signed-off-by: Werner Koch <wk@gnupg.org>
* agent/call-scd.c (unlock_scd): Move lock before accessing IN_USE.
(wait_child_thread): Add log_info for Windows, and fixed log_error
message.
--
The old code is still valid with cooperate threads, but this is
better.
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
* agent/call-scd.c (cancel_inquire): Remove.
(agent_card_pksign, agent_card_pkdecrypt, agent_card_writekey)
(agent_card_scd): Don't call cancel_inquire.
--
Since libassuan 2.1.0, cancellation command "CAN" is handled within
the library, by assuan_transact. So, cancel_inquire just caused
spurious "CAN" command to scdaemon which resulted an error.
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
* agent/Makefile.am (AM_CPPFLAGS): Remove -I$(top_srcdir)/common.
* agent/call-pinentry.c, agent/call-scd.c: Follow the change.
* agent/command-ssh.c, agent/command.c, agent/cvt-openpgp.c: Ditto.
* agent/divert-scd.c, agent/findkey.c, agent/genkey.c: Ditto.
* agent/gpg-agent.c, agent/pksign.c, agent/preset-passphrase.c: Ditto.
* agent/protect-tool.c, agent/protect.c, agent/trustlist.c: Ditto.
* agent/w32main.c: Ditto.
--
For openpty function, we need to include util.h on some OS.
We also have util.h in common/, so this change is needed.
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
* agent/call-scd.c (writekey_parm_s, inq_needpin_s): Merge into ...
(inq_needpin_parm_s): new struct. Add new field 'getpin_cb_desc'.
Change users to set all fields.
(inq_needpin): Pass GETPIN_CB_DESC to the GETPIN_CB.
(agent_card_pksign): Add arg 'desc_text' and change arg 'getpin_cb' to
take an additional arg 'desc_text'.
(agent_card_pkdecrypt): Ditto.
(agent_card_writekey): Change arg 'getpin_cb' to take an additional
arg 'desc_text'.
(agent_card_scd): Ditto.
* agent/divert-scd.c (getpin_cb): Add new arg 'desc_text'.
(divert_pksign): Add new arg 'desc_text' and pass is to
agent_card_pksign.
(divert_pkdecrypt): Add new arg 'desc_text' and pass is to
agent_card_pkdecrypt.
* agent/pkdecrypt.c (agent_pkdecrypt): Pass DESC_TEXT to
divert_pkdecrypt.
* agent/pksign.c (agent_pksign_do): Pass DESC_TEXT to
divert_pksign.
--
Signed-off-by: Werner Koch <wk@gnupg.org>
* agent/call-scd.c (card_cardlist_cb, agent_card_cardlist): New.
* agent/command-ssh.c (card_key_list): New.
(ssh_handler_request_identities): Call card_key_list and loop for the
list to send public keys for all available cards.
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
