* agent/agent.h (PINENTRY_STATUS_PASSWORD_GENERATED): New.
(MAX_GENPIN_TRIES): Remove.
* agent/call-pinentry.c (struct entry_parm_s):
(struct inq_cb_parm_s): Add genpinhash and genpinhas_valid.
(is_generated_pin): New.
(inq_cb): Suppress constraints checking for a generated passphrase.
No more need for several tries to generate the passphrase.
(do_getpin): Store a generated passphrase/pin in the status field.
(agent_askpin): Suppress constraints checking for a generated
passphrase.
(agent_get_passphrase): Ditto.
* agent/command.c (cmd_get_passphrase): Ditto.
--
A generated passphrase has enough entropy so that all kind of extra
checks would only reduce the actual available entropy. We thus detect
if a passphrase has been generated (and not changed) and skip all
passphrase constraints checking.
* agent/gpg-agent.c (oCheckSymPassphrasePattern): New.
(opts): Add --check-sym-passphrase-pattern.
(parse_rereadable_options): Set option.
(main): Return option info.
* tools/gpgconf-comp.c: Add new option.
* agent/agent.h (opt): Add var check_sym_passphrase_pattern.
(struct pin_entry_info_s): Add var constraints_flags.
(CHECK_CONSTRAINTS_NOT_EMPTY): New to replace a hardwired 1.
(CHECK_CONSTRAINTS_NEW_SYMKEY): New.
* agent/genkey.c (check_passphrase_pattern): Rename to ...
(do_check_passphrase_pattern): this to make code reading
easier. Handle the --check-sym-passphrase-pattern option.
(check_passphrase_constraints): Replace arg no_empty by a generic
flags arg. Also handle --check-sym-passphrase-pattern here.
* agent/command.c (cmd_get_passphrase): In --newsymkey mode pass
CHECK_CONSTRAINTS_NEW_SYMKEY flag.
* agent/call-pinentry.c (struct entry_parm_s): Add constraints_flags.
(struct inq_cb_parm_s): New.
(inq_cb): Use new struct for parameter passing. Pass flags to teh
constraints checking.
(do_getpin): Pass constraints flag down.
(agent_askpin): Take constrainst flag from the supplied pinentry
struct.
--
Requirements for a passphrase to protect a private key and for a
passphrase used for symmetric encryption are different. Thus a
the use of a different pattern file will be useful. Note that a
pattern file can be used to replace the other passphrase constraints
options and thus we don't need to duplicate them for symmetric
encryption.
GnuPG-bug-id: 5517
Signed-off-by: Werner Koch <wk@gnupg.org>
* agent/agent.h (opt): Change type of pinentry_formatted_passphrase
to int (as for other flags).
* agent/call-pinentry.c (setup_formatted_passphrase): Remove no longer
needed translated strings. Write option without value to Assuan
connection.
* agent/gpg-agent.c (opts): Use ARGPARSE_s_n for
oPinentryFormattedPassphrase.
(parse_rereadable_options): Set option to 1.
--
GnuPG-bug-id: 5553, 5517
* agent/call-tpm2d.c: New.
* divert-tpm2.c: New.
* agent/Makefile.am: Add new files.
* agent/agent.h (DAEMON_TPM2D): New. Add stub fucntions.
* agent/call-daemon.c (GNUPG_MODULE_NAME_TPM2DAEMON): New.
* agent/command.c (do_one_keyinfo): Handle tpmv2.
* agent/gpg-agent.c (oTpm2daemonProgram): New.
(opts): New option --tpm2daemon-program.
(parse_rereadable_options): Handle option.
* agent/pkdecrypt.c (agent_pkdecrypt): Divert to tpm2d.
(agent_pksign_do): Ditto.
---
A new shadow key type: "tpm2-v1" is introduced signalling that the
shadowed key is handled by the tpm2daemon. A function to identify
this type is introduced and diversions to the tpm2daemon functions are
conditioned on this function for pkign and pkdecrypt where the same
diversions to scd are currently done. The (info) field of the
shadowed key stores the actual TPM key. The TPM key is encrypted so
only the physical TPM it was created on can read it (so no special
protection is required for the info filed), but if the (info) field
becomes corrupt or damaged, the key will be lost (unlike the token
case, where the key is actually moved inside the token).
Note, this commit adds handling for existing TPM format shadow keys,
but there is still no way to create them.
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Additional changes:
* Add ChangeLog entries.
* Some minor indentation fixes.
* agent/Makefile.am (gpg_agent_SOURCES): Change to make distcheck
work.
* agent/agent.h [!HAVE_LIBTSS]: Do not return -EINVAL but an
gpg_error_t. Mark args as unused.
* agent/protect.c (agent_is_tpm2_key): Free BUF.
Signed-off-by: Werner Koch <wk@gnupg.org>
* agent/command.c (cmd_sethash): Add option --pss and allow for
--hash=null.
* agent/agent.h (struct server_control_s): Add digest.is_pss and
zero where needed.
* agent/pksign.c (agent_pksign_do): Allow for PSS with cards.
* scd/command.c (cmd_pksign): Add for --hash=none.
--
This is not a full implementaion of PSS but allows scdaemon card
drivers to detect already PSS formatted data.
Signed-off-by: Werner Koch <wk@gnupg.org>
* agent/call-pinentry.c (agent_get_passphrase): Add arg pininfo.
* agent/genkey.c (check_passphrase_constraints): New arg no_empty.
* agent/command.c (reenter_passphrase_cmp_cb): New.
(cmd_get_passphrase): Add option --newsymkey.
--
This new option allows to present a passphrase with the usual repeat
box as it is used by gpg-agent's internal key generation.
Signed-off-by: Werner Koch <wk@gnupg.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>
--
For TPM support it is necessary to indroduce another type of shadow
key, so allow other agent functions to extract the type so they can
make the right decisions based on it.
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Minor editorial changes by wk
* 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
No functional changes, just fixing minor spelling issues.
---
Most of these were identified from the command line by running:
codespell \
--ignore-words-list fpr,stati,keyserver,keyservers,asign,cas,iff,ifset \
--skip '*.po,ChangeLog*,help.*.txt,*.jpg,*.eps,*.pdf,*.png,*.gpg,*.asc' \
doc g13 g10 kbx agent artwork scd tests tools am common dirmngr sm \
NEWS README README.maint TODO
Signed-off-by: Daniel Kahn Gillmor <dkg@fifthhorseman.net>
* 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>
* common/util.h (EXTERN_UNLESS_MAIN_MODULE): Add the definion only
here but now without the Norcroft-C. Change all other places where it
gets defined.
* common/iobuf.h (iobuf_debug_mode): Declare unconditionally as
extern.
* common/iobuf.c (iobuf_debug_mode): Define it here.
* agent/gpg-agent.c (INCLUDED_BY_MAIN_MODULE): Define here and also in
all main modules of all other programs.
* g10/main.h: Put util.h before the local header files.
--
This change is required for use with gcc/ld's LTO feature which does
not allow common blocks. Further gcc 10 will make -fno-common the
default and thus this chnage is always needed. What a pitty.
Co-authored-by: Tomáš Mráz
GnuPG-bug-id: 4831
Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit 21d9bd8b87)
- Applied respective chnages also to gpg-card and keyboxd.
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/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/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/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>
* 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/agent.h (CACHE_MODE_DATA): New const.
* agent/cache.c (DEF_CACHE_TTL_DATA): new.
(housekeeping): Tweak for CACHE_MODE_DATA.
(cache_mode_equal): Ditto.
(agent_get_cache): Ditto.
(agent_put_cache): Implement CACHE_MODE_DATA.
* agent/command.c (MAXLEN_PUT_SECRET): New.
(parse_ttl): New.
(cmd_get_secret): New.
(cmd_put_secret): New.
(register_commands): Register new commands.
--
These commands allow to store secrets in memory for the lifetime of
the gpg-agent process.
Signed-off-by: Werner Koch <wk@gnupg.org>
* agent/cache.c (agent_put_cache): Add arg 'ctrl' and change all
callers to pass it.
(agent_get_cache): Ditto.
* agent/cache.c (struct cache_items_s): Add field 'restricted'.
(housekeeping): Adjust debug output.
(agent_flush_cache): Ditto.
(agent_put_cache): Ditto. Take RESTRICTED into account.
(agent_get_cache): Ditto.
--
If requests are coming from different sources they should not share the
same cache. This way we make sure that a Pinentry pops up for a
remote request to a key we have already used locally.
GnuPG-bug-id: 3858
Signed-off-by: Werner Koch <wk@gnupg.org>
* agent/cache.c (agent_cache_housekeeping): New func.
* agent/gpg-agent.c (handle_tick): Call it.
--
This change mitigates the risk of having cached items in a post mortem
dump.
GnuPG-bug-id: 3829
Signed-off-by: Werner Koch <wk@gnupg.org>
* agent/command.c (cmd_getinfo): New sub-commands.
* agent/protect.c (get_standard_s2k_count): Factor some code out to ...
(get_calibrated_s2k_count): new.
(get_standard_s2k_time): New.
Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit 52d41c8b0f)
* agent/agent.h (opt): New field 's2k_count'.
* agent/gpg-agent.c (oS2KCount): New enum value.
(opts): New option --s2k-count.
(parse_rereadable_options): Set opt.s2k_count.
--
This option is useful to speed up the starting of gpg-agent and in
cases where the auto-calibration runs into problems due to a broken
time measurement facility.
Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit f7212f1d11)
* agent/command.c (cmd_getinfo): New sub-commands.
* agent/protect.c (get_standard_s2k_count): Factor some code out to ...
(get_calibrated_s2k_count): new.
(get_standard_s2k_time): New.
Signed-off-by: Werner Koch <wk@gnupg.org>
* agent/agent.h (opt): New field 's2k_count'.
* agent/gpg-agent.c (oS2KCount): New enum value.
(opts): New option --s2k-count.
(parse_rereadable_options): Set opt.s2k_count.
--
This option is useful to speed up the starting of gpg-agent and in
cases where the auto-calibration runs into problems due to a broken
time measurement facility.
Signed-off-by: Werner Koch <wk@gnupg.org>
* agent/agent.h (struct server_control_s): Rename PINENTRY_ACTIVE.
* agent/call-pinentry.c (entry_owner): Remove.
(agent_reset_query): Use thread private object of PINENTRY_ACTIVE.
(unlock_pinentry): Add CTRL to arguments to access thread private.
Check and decrement PINENTRY_ACTIVE for recursive use.
(start_pinentry): Check and increment PINENTRY_ACTIVE for recursion.
(agent_askpin): Follow the change of unlock_pinentry API.
(agent_get_passphrase, agent_get_confirmation): Likewise.
(agent_show_message, agent_popup_message_start): Likewise.
(agent_popup_message_stop, agent_clear_passphrase): Likewise.
--
We use the member PINENTRY_ACTIVE as a thread private object.
It's only valid for a single thread at a time.
It would be possible to have a thread shared object of
PINENTRY_ACTIVE, keeping ENTRY_OWNER for distinguishing its
owner (which is also a thread shared object). But, in this case,
access to ENTRY_OWNER is tricky (only comparison to accessing thread
would be OK with no lock), or we need to introduce another lock for
accessing ENTRY_OWNER, which complicates the code too much.
So, simply have a thread private object for recursive pinentry access.
GnuPG-bug-id: 3190
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
(cherry picked from commit fb7828676c)
* agent/agent.h (struct server_control_s): Rename PINENTRY_ACTIVE.
* agent/call-pinentry.c (entry_owner): Remove.
(agent_reset_query): Use thread private object of PINENTRY_ACTIVE.
(unlock_pinentry): Add CTRL to arguments to access thread private.
Check and decrement PINENTRY_ACTIVE for recursive use.
(start_pinentry): Check and increment PINENTRY_ACTIVE for recursion.
(agent_askpin): Follow the change of unlock_pinentry API.
(agent_get_passphrase, agent_get_confirmation): Likewise.
(agent_show_message, agent_popup_message_start): Likewise.
(agent_popup_message_stop, agent_clear_passphrase): Likewise.
--
We use the member PINENTRY_ACTIVE as a thread private object.
It's only valid for a single thread at a time.
It would be possible to have a thread shared object of
PINENTRY_ACTIVE, keeping ENTRY_OWNER for distinguishing its
owner (which is also a thread shared object). But, in this case,
access to ENTRY_OWNER is tricky (only comparison to accessing thread
would be OK with no lock), or we need to introduce another lock for
accessing ENTRY_OWNER, which complicates the code too much.
So, simply have a thread private object for recursive pinentry access.
GnuPG-bug-id: 3190
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
* agent/agent.h (server_control_s): Add field 'client_uid'.
* agent/call-pinentry.c (start_pinentry): Add uid field to assuan
option "owner" sent to pinentry.
* agent/command-ssh.c (peer_info_s): New static struct.
(get_client_pid): Rename to...
(get_client_info): Here, and extract uid in addition to pid.
(start_command_handler_ssh): Use get_client_info() instead of
get_client_pid().
* agent/command.c (start_command_handler): Try assuan_get_peercred,
and only fall back to assuan_get_pid when assuan_get_peercred fails.
--
This also requires an update to pinentry to handle the new uid field.
Distributing the uid as well as the pid makes it harder for a
different user on the same machine to take advantage of any race
conditions between when a requesting process might ask for something
that needs pinentry, and when pinentry gets around to inspecting the
state of that process.
We put the uid before the nodename because the uid is guaranteed to be
a integer (represented in decimal), which makes it much simpler to
parse past than the potentially arbitrarily structured nodename.
Use a / instead of whitespace to delimit pid/uid at Werner's request.
If we were willing to depend on the nodename being
whitespace-delimited (as the current, unreleased pinentry code does),
then we could add the uid after the nodename. But since no released
pinentry depends on this option anyway, i think we should make the
more conservative, easily-parseable choice and put the user ID first.
Signed-off-by: Daniel Kahn Gillmor <dkg@fifthhorseman.net>
* agent/agent.h (L_): Define agent_Lunderscore when simple
gettext is used.
--
This fixes a regression introduced by b3286af3 ENABLE_NLS
is not defined if we use simple gettext and not gettext.
GnuPG-Bug-Id: T3364
Signed-off-by: Andre Heinecke <aheinecke@intevation.de>
* agent/command.c (cmd_pksign): Change var name 'rc' to 'err'.
* agent/findkey.c (read_key_file): Ditto. Change return type to
gpg_error_t. On es_fessk failure return a correct error code.
(agent_key_from_file): Change var name 'rc' to 'err'.
* agent/pksign.c (agent_pksign_do): Ditto. Change return type to
gpg_error_t. Return a valid erro code on malloc failure.
(agent_pksign): Ditto. Change return type to gpg_error_t. replace
xmalloc by xtrymalloc.
* agent/protect.c (calculate_mic): Change return type to gpg_error_t.
(do_decryption): Ditto. Do not init RC.
(merge_lists): Change return type to gpg_error_t.
(agent_unprotect): Ditto.
(agent_get_shadow_info): Ditto.
--
While code starring for bug 3266 I found two glitches and also changed
var name for easier reading.
Signed-off-by: Werner Koch <wk@gnupg.org>
* agent/agent.h (opt): New field 'ssh_fingerprint_digest'.
* agent/command-ssh.c (data_sign, ssh_identity_register): Honor the
option for strings used to communicate with the user.
* agent/findkey.c (agent_modify_description): Likewise.
* agent/gpg-agent.c (cmd_and_opt_values): New value.
(opts): New option '--ssh-fingerprint-digest'.
(parse_rereadable_options): Set the default to MD5 for now.
(main): Handle the new option.
* doc/gpg-agent.texi: Document the new option.
--
OpenSSH has transitioned from using MD5 to compute key fingerprints to
SHA256. This patch makes the digest used when communicating key
fingerprints to the user (e.g. in pinentry dialogs) configurable.
For now this patch conservatively defaults to MD5.
GnuPG-bug-id: 2106
Signed-off-by: Justus Winter <justus@g10code.com>
* agent/findkey.c (agent_delete_key): Add arg 'only_stubs'.
* agent/command.c (cmd_delete_key): Add option --stub-only.
--
This option can be used to savely remove stub keys.
* agent/divert-scd.c (has_percent0A_suffix): New.
(getpin_cb): Prepend DESC_TEXT to the prompt.
* agent/findkey.c (modify_description): Rename to ...
(agent_modify_description): this. MAke global. Add kludge to remove
empty parentheses from the end.
(agent_key_from_file, agent_delete_key): Adjust for above change.
* agent/pksign.c (agent_pksign_do): Modify DESC_TEXT also when
diverting to a card.
--
Now that we have support for multiple tokens, it is important to show
information on which key has been requested. Without that it may
happen that the PIN for a wrong card is accidentally entered.
The texts are a bit ugly, because they talk about "passphrase" but
later about entering a PIN.
A quick hack would be to s/passphrase/PIN/ in the description but that
is complicated due to i18n. Another solution might be never to talk
about PINs in the description but always about "passphrase: and only
use "PIN" or "passphrase" on the left of the entry field.
