* 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
* doc/gpg-agent.texi: improve documentation of CARD entry in
GETEVENTCOUNTER description.
--
"stati" is unclear and confusing, and describing something in the
singular is almost always less ambiguous than leaving it in the
plural.
Signed-off-by: Daniel Kahn Gillmor <dkg@fifthhorseman.net>
* 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/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>
* common/shareddefs.h (request_origin_t): New.
* common/agent-opt.c (parse_request_origin): New.
(str_request_origin): New.
* agent/command.c (option_handler): Implement new option.
--
This allows to pretend that a request originated from the extra or
browser socket.
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/gpg-agent.c (oListenBacklog): New const.
(opts): New option --listen-backlog.
(listen_backlog): New var.
(main): Parse new options.
(create_server_socket): Use var instead of 5.
* dirmngr/dirmngr.c: Likewise.
* scd/scdaemon.c: Likewise.
--
GnuPG-bug-id: 3473
Signed-off-by: Werner Koch <wk@gnupg.org>
* agent/gpg-agent.c (oAutoExpandSecmem): New enum value.
(opts): New option --auto-expand-secmem.
(main): Implement that option.
--
Note that this option has an effect only if Libgcrypt >= 1.8.2 is
used.
GnuPG-bug-id: 3530
* 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/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/protect.c (PROT_DEFAULT_TO_OCB): Remove macro.
(agent_protect): Make the default protection mode depend on the extend
key format option.
Signed-off-by: Werner Koch <wk@gnupg.org>
* doc/gpg-agent.texi: document "gpgconf --kill gpg-agent" for manual
agent termination.
This was requested in a side-comment in https://bugs.debian.org/840669
Signed-off-by: Daniel Kahn Gillmor <dkg@fifthhorseman.net>
* agent/gpg-agent.c (get_socket_path): Rename to ...
(get_socket_name): this. This is to comply with the GNU coding guide.
Use xtrymalloc instead of malloc. Do not build for W32.
(map_supervised_sockets): Use strtokenize and set the the socket names
here.
(main): Adjust for above change. Do not close the socket.
Signed-off-by: Werner Koch <wk@gnupg.org>
* agent/gpg-agent.c (get_socket_path): New function for POSIX systems
to return the path for a provided unix-domain socket.
(map_supervised_sockets): New function to inspect $LISTEN_FDS and
$LISTEN_FDNAMES and map them to the specific functionality offered by
the agent.
(main): Add --supervised command. When used, listen on already-open
file descriptors instead of opening our own.
* doc/gpg-agent.texi: Document --supervised option.
--
"gpg-agent --supervised" is a way to invoke gpg-agent such that a
system supervisor like systemd can provide socket-activated startup,
log management, and scheduled shutdown.
When running in this mode, gpg-agent:
* Does not open its own listening socket; rather, it expects to be
given a listening socket on incoming file descriptors.
* Does not detach from the invoking process, staying in the
foreground instead. Unless otherwise specified, logs are sent to
stderr.
Signed-off-by: Daniel Kahn Gillmor <dkg@fifthhorseman.net>
* agent/gpg-agent.c (main): Provide defaults for 'extra-socket' and
'browser-socket', enable ssh socket by default, but do not emit the
'SSH_AUTH_SOCK' variable unless it has been explicitly requested.
* configure.ac (GPG_AGENT_{EXTRA,BROWSER}_SOCK_NAME): New definitions.
* doc/gpg-agent.texi: Update documentation.
--
This change enables the restricted, browser, and ssh socket by
default. Note that in all cases, the user has to do some additional
configuration to her setup to make use of these features. Therefore,
this should not break any existing setups, but makes it simpler to
discover and use these features.
Signed-off-by: Justus Winter <justus@g10code.com>
--
The commands --help, --version, --dump-options are special in that
they can't be abbreciated on the command line. This is to avoid
problems with regular options with the same prefix.
Fixes-commit: 0a27d8a57c4c990fcada4278a1ce2e6fc9043e9
Signed-off-by: Werner Koch <wk@gnupg.org>
* tools/gpgconf.c (main) <aListDir>: Factor code out to ...
(list_dirs): new. Rewrite to use a table. Allow selection of a
items. Add "agent-ssh-socket".
--
This change makes the use of gpgconf in scripts easier. For example,
to set the envvar with the name of the socket used by ssh, it is now
possible to do this:
SSH_AUTH_SOCK="$(gpgconf --list-dirs agent-ssh-socket)"
which guarantees that the right name is used.
Signed-off-by: Werner Koch <wk@gnupg.org>
* agent/command.c (cmd_delete_key): Make the --force option depend on
--disallow-loopback-passphrase.
* g10/call-agent.c (agent_delete_key): Add arg FORCE.
* g10/delkey.c (do_delete_key): Pass opt.answer_yes to
agent_delete_key.
--
Unless the agent has been configured with
--disallow-loopback-passpharse an unattended deletion of a secret key
is now possible with gpg by using --batch _and_ --yes.
Signed-off-by: Werner Koch <wk@gnupg.org>
* agent/gpg-agent.c (oNoAllowLoopbackPinentry): New.
(opts): Add --no-allow-loopback-pinentry. Hide
description of --allow-loopback-pinentry.
(parse_rereadable_options): Set opt.allow_loopback_pinentry by
default.
(main): Replace allow-loopback-pinentry by no-allow-loopback-pinentry
in the gpgconf list.
* tools/gpgconf-comp.c (gc_options_gpg_agent): Ditto.
--
Given that a user can anyway change that options in the gpg-agent.conf
file and that gpg needs to be invoked with --pinentry-mode=loopback
the former default does not make much sense - in that option is useful
at all. There was a discussion of this topic on gnupg-devel in April
without a clear result. So we try this new default and just in case
real problems are found for the majority of installations, we can
revert that. The new default is also aligned with GnuPG's policy to
make its use easier and only require users with very high security
standards to tweak certain options (those users have anyway modeled
their threat model and configured their software according to this).
Signed-off-by: Werner Koch <wk@gnupg.org>
* doc/gpg-agent.texi (Agent Options): Add comment to the description
of --debug-quick-random that rngd can also be used to quickly generate
key.
--
Signed-off-by: Neal H. Walfield <neal@g10code.com>
