* agent/command.c (struct server_local_s): Add last_card_keyinfo.
(eventcounter): Add maybe_key_change.
(cmd_genkey, cmd_scd, cmd_import_key, cmd_delete_key): Bump new
counter.
(cmd_keyinfo): Cache the keyinfo from the card.
(start_command_handler): Release the cache.
--
This cache speeds up processing of commands like "gpg -K" because
scdaemon does not need to be asked for each key as long as nothing
changed with the card.
We should have a better notification service from scdaemon to make
sure that we get only the relevant events. What we do right now is a
bit course but sufficient.
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/command-ssh.c (card_key_available): Supply KEYINFO argument.
Call agent_card_readkey by KEYGRIP of KEYINFO.
Don't use $AUTHKEYID, but IDSTR of KEYINFO.
(ssh_handler_request_identities): Follow the change of
card_key_available.
Signed-off-by: NIIBE Yutaka <gniibe@fsij.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/call-pinentry.c (atfork_cb): Factor code out to ...
(atfork_core): new.
--
We convey certain envvars directly via the environment to Pinentry and
thus they don't show up in the Assuan logging. Because we better
don't call a logging function in an atfork handle, this patch splits
the code up and uses the same code to display what was done in at fork
after the connection has been established.
Signed-off-by: Werner Koch <wk@gnupg.org>
* agent/divert-scd.c (ask_for_card): Don't use SERIALNO to select
card, but use KEYGRIP.
GnuPG-bug-id: 4695
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
* agent/call-pinentry.c (watch_sock_start): Factor out
from do_getpin.
(watch_sock_end): Likewise.
(do_getpin): Use those functions.
(agent_get_confirmation): Likewise.
(popup_message_thread): Likewise.
--
Pinentry's dialog for confirmation should be also closed cleanly, as
well as the dialog for pin-input.
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
* agent/call-pinentry.c (start_pinentry): When TERM is none,
don't send OPTION ttytype to pinentry.
--
GnuPG-bug-id: 4137
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
* agent/command.c (cmd_getinfo): Return GPG_ERR_FALSE as boolean False.
* g13/server.c (cmd_getinfo): Ditto.
* sm/server.c (cmd_getinfo): Ditto.
--
GPG_ERR_FALSE was introduced with libgpg-error 1.21 and we now require
a later version for gnupg 2. Thus we can switch to this more
descriptive code.
Signed-off-by: Werner Koch <wk@gnupg.org>
* agent/command.c (do_one_keyinfo): Add ON_CARD argument to put
A-flag.
(cmd_keyinfo): Call agent_card_keyinfo to offer additional information
if it's on card.
--
This is a modification in gpg-agent, intended for better
enum_secret_keys in gpg frontend.
GnuPG-bug-id: 4244
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
* agent/pksign.c (do_encode_md): Use ascii_tolower and avoid
uninitalized TMP in the error case.
--
This is just in case libgcrypt ever returns an algorithm name longer
than 15 bytes.
Signed-off-by: Werner Koch <wk@gnupg.org>
* agent/command-ssh.c (ssh_key_to_protected_buffer): Update
the length by the second call of gcry_sexp_sprint.
--
GnuPG-bug-id: 4502
Signed-off-by: NIIBE Yutaka <gniibe@fsij.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/findkey.c (agent_public_key_from_file): pass size_t as int to
gcry_sexp_build_array's %b.
--
This is only a problem on big-endian systems where size_t is not the
same size as an int. It was causing failures on debian's s390x,
powerpc64, and sparc64 platforms.
There may well be other failures with %b on those platforms in the
codebase, and it probably needs an audit.
Once you have a key in private-keys-v1.d/$KEYGRIP.key with a comment
or a uri of reasonable length associated with it, this fix can be
tested with:
gpg-agent --server <<<"READKEY $KEYGRIP"
On the failing platforms, the printed comment will be of length 0.
Gnupg-bug-id: 4501
Signed-off-by: Daniel Kahn Gillmor <dkg@fifthhorseman.net>
* agent/findkey.c (has_comment_expando): New.
(agent_key_from_file): Modify DESC_TEXT.
--
A Label entry in the keyfile is always set manually and thus we can
assume that the user wants to have this label in the prompt. In case
the prompt template does not demand a comment this patch appends a
comment to thhe template. This is a common case for on-disk keys used
by gpg.
Signed-off-by: Werner Koch <wk@gnupg.org>
* agent/findkey.c (linefeed_to_percent0A): New.
(read_key_file): Add optional arg 'keymeta' and change all callers.
(agent_key_from_file): Prefer "Label:" over the comment for protected
keys.
--
If in the extended key format an item
Label: This is my key
is found, "This is my key" will be displayed instead of the comment
intially recorded in the s-expression. This is pretty useful for the
ssh keys because often there is only the original file name recorded
in the comment.
If no Label is found or it is empty the S-expression comment is used.
To show more than one line, the standard name-value syntax can be
used, for example:
Label: The Ssh key
<blank line>
<space>I registered on fencepost.
Signed-off-by: Werner Koch <wk@gnupg.org>
* agent/findkey.c (write_extended_private_key): Add args serialno and
keyref. Write a Token line if that does not yet exist.
(agent_write_private_key): Add args serialno and keyref and change all
callers.
(agent_write_shadow_key): Skip leading spaces.
* agent/keyformat.txt: Improve extended key format docs.
--
Noet that the extended key forma is the defaqult in 2.3. This patch
is a first step to better handle tokens which carray the same key.
Signed-off-by: Werner Koch <wk@gnupg.org>
* agent/gpg-agent.c (oEnableExtendedKeyFormat): Re-introduce.
(parse_rereadable_options): Handle it in a special way.
* agent/protect.c (agent_protect): Be safe and set use_ocb only to 1
or 0.
* tools/gpgconf-comp.c: Add --enable-extended-key-format again.
--
This is required for backward compatible with profiles.
Signed-off-by: Werner Koch <wk@gnupg.org>
* agent/gpg-agent.c (oDisableExtendedKeyFormat, oNoop): New.
(oEnableExtendedKeyFormat): Remove.
(opts): Make --enable-extended-key-format a dummy option. Add
disable-extended-key-format.
(parse_rereadable_options): Implement oDisableExtendedKeyFormat.
--
Extended key format is supported since vesion 2.1.12 which should have
long been replaced by a newer version inh all installations. Thus for
2.3 we will make use of the extended-key-format by default.
Signed-off-by: Werner Koch <wk@gnupg.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/pksign.c (agent_pksign_do):
--
It's best to keep same data format by libgcrypt.
For card (due to historical reasons), gpg-agent or scdaemon used to
prefix 0x00 when it starts 0x80, so that it can be parsed signed MPI
as well as unsigned MPI. It used to do nothing for preceding zeros.
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
* agent/divert-scd.c (divert_pkdecrypt): Skip a flags parameter.
--
The libgcrypt docs say that a "flags" parameter should always be used
in the input of pkdecrypt. Thus we should allow that parameter also
when parsing an s-expression to figure out the algorithm for use with
scdaemon.
Signed-off-by: Werner Koch <wk@gnupg.org>
* agent/call-pinentry.c (watch_sock): New.
(do_getpin): Spawn the watching thread.
--
While we don't have npth_cancel (and it's difficult to implement it
correctly), this is a kind of best compromise allowing a thread's
polling when pinentry is active.
GnuPG-bug-id: 2011
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
* agent/agent.h (PINENTRY_STATUS_*): Expose to public.
(struct pin_entry_info_s): Add status.
* agent/call-pinentry.c (agent_askpin): Clearing the ->status
before the loop, let the assuan_transact set ->status. When
failure with PINENTRY_STATUS_PASSWORD_FROM_CACHE, it returns
soon.
* agent/findkey.c (unprotect): Clear the pinentry cache,
when it causes an error.
--
GnuPG-bug-id: 4348
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
* g10/passphrase.c (encode_s2k_iterations): Move function to ...
* common/openpgp-s2k.c: new file. Remove default intialization code.
* common/openpgpdefs.h (S2K_DECODE_COUNT): New to keep only one copy.
* g10/call-agent.c (agent_get_s2k_count): Change to return the count
and print an error.
* agent/protect.c: Include openpgpdefs.h
* g10/card-util.c (gen_kdf_data): Adjust for changes
* g10/gpgcompose.c: Include call-agent.h.
(sk_esk): Adjust for changes.
* g10/passphrase (passphrase_to_dek): Adjust for changes.
* g10/main.h (S2K_DECODE_COUNT): Remove macro.
Signed-off-by: Werner Koch <wk@gnupg.org>
* common/percent.c (percent_data_escape): Add new args prefix and
plus_escape.
* agent/command.c (cmd_put_secret): Adjust for changed function
* common/t-percent.c (test_percent_data_escape): Extend test for the
prefix.
(test_percent_data_escape_plus): new test for the plus escaping.
Signed-off-by: Werner Koch <wk@gnupg.org>
* agent/command-ssh.c (struct ssh_key_type_spec): Add field
alt_curve_name.
(ssh_key_types): Add some alternate curve names.
(ssh_identifier_from_curve_name): Lookup also bey alternative names
and return the canonical name.
(ssh_key_to_blob): Simplify the ECDSA case by using gcry_pk_get_curve
instead of the explicit mapping.
(ssh_receive_key): Likewise. Use ssh_identifier_from_curve_name to
validate the curve name. Remove the reverse mapping because since
GnuPG-2.2 Libgcrypt 1.7 is required.
(ssh_handler_request_identities): Log an error message.
--
This change will make it easier to support other curves, in particular
those from tokens. Libgcrypt has a large list of alias names which we
now use to to make the mapping more flexible.
Signed-off-by: Werner Koch <wk@gnupg.org>
* agent/protect.c (s2k_calibration_time): New file global var.
(calibrate_s2k_count): Use it here.
(get_calibrated_s2k_count): Replace function static var by ...
(s2k_calibrated_count): new file global var.
(set_s2k_calibration_time): New function.
* agent/gpg-agent.c (oS2KCalibration): New const.
(opts): New option --s2k-calibration.
(parse_rereadable_options): Parse that option.
--
Note that using an unrelistic high value (like 60000) takes quite some
time for calibration.
GnuPG-bug-id: 3399
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>
