Commit Graph

691 Commits

Author SHA1 Message Date
Werner Koch 650356148a
agent: Terminate on deletion of the socket file (Linux only).
* configure.ac (AC_CHECK_FUNCS): Chec for inotify_init.
* agent/gpg-agent.c [HAVE_INOTIFY_INIT]: Include sys/inotify.h.
(my_inotify_is_name) [HAVE_INOTIFY_INIT]: New.
(handle_connections) [HAVE_INOTIFY_INIT]: New.

Signed-off-by: Werner Koch <wk@gnupg.org>
2016-09-06 11:00:12 +02:00
Werner Koch 0b99d1fd2a
agent: Silence --debug IPC output for connections from self.
* agent/command.c (server_local_s): Add fields 'greeting_seen' and
'connect_from_self'.
(io_monitor): Do not log connections from self.
(start_command_handler): Set flag 'connect_from_self'.
* agent/gpg-agent.c (check_own_socket_thread): Disable logging.
(do_start_connection_thread): Do not log conection start and
termination if IPC debugging is enabled.

Signed-off-by: Werner Koch <wk@gnupg.org>
2016-09-05 16:24:14 +02:00
Werner Koch 2eeb5551c3
agent: Small improvement of the server's local state.
* agent/command.c (sserver_local_s): Change flags to use only one bit.
(option_handler): Make an atoi return 1 or 0.

Signed-off-by: Werner Koch <wk@gnupg.org>
2016-09-05 16:24:14 +02:00
Werner Koch 0ac671f8a2
common: Add an assuan logging monitor.
* common/asshelp.c (my_log_monitor): New var.
(my_libassuan_log_handler): Run that monitor.
(setup_libassuan_logging): Add arg to set a log monitor and change all
callers.

Signed-off-by: Werner Koch <wk@gnupg.org>
2016-09-05 11:58:48 +02:00
NIIBE Yutaka 8b6c0bae33 agent: invoke scdaemon with --homedir.
* agent/call-scd.c (start_scd): Supply --homedir option when it's not
default homedir.

--

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2016-09-02 13:41:19 +09:00
Werner Koch b5d63e81d5
agent: Allow import of overly large keys.
* agent/command.c (MAXLEN_KEYDATA): Double the size.
--

Debian-bug-id: 834447
Signed-off-by: Werner Koch <wk@gnupg.org>
2016-08-16 19:06:28 +02:00
Daniel Kahn Gillmor 61c2a1fa6d
Call log_set_prefix() with human-readable labels.
* agent/preset-passphrase.c, agent/protect-tool.c, dirmngr/dirmngr.c
* dirmngr/t-http.c, g10/gpg.c, g10/gpgv.c, g13/g13-syshelp.c
* g13/g13.c, kbx/kbxutil.c, scd/scdaemon.c, sm/gpgsm.c
* tests/gpgscm/main.c, tools/gpg-check-pattern.c
* tools/gpg-connect-agent.c, tools/gpgconf.c, tools/gpgtar.c
* tools/symcryptrun.c: Invoke log_set_prefix() with
human-readable labels.

--

Some invocations of log_set_prefix() were done with raw numeric values
instead of values that humans can understand.  Use symbolic
representations instead of numeric for better readability.

Signed-off-by: Daniel Kahn Gillmor <dkg@fifthhorseman.net>
2016-08-12 12:16:19 +02:00
Justus Winter 14479e2515 common: Rework the simple password query module.
* common/simple-pwquery.c (writen, readline): Drop.
(agent_send_option, agent_send_all_options, agent_open): Just use
libassuan.
(simple_pw_set_socket): Simplify.
(default_inq_cb): New function.
(simple_pwquery, simple_query): Just use libassuan.
* agent/Makefile.am (gpg_preset_passphrase_LDADD): Add libassuan.
* tools/Makefile.am (symcryptrun_LDADD): Likewise.

Signed-off-by: Justus Winter <justus@g10code.com>
2016-08-11 12:49:30 +02:00
Justus Winter 9e6503b7ce common: Remove simple password query error codes.
* common/simple-pwquery.h: Remove mapping function.  Move all
definitions of status codes...
* common/simple-pwquery.c: ... here, and define them to meaningful gpg
error values.
* agent/preset-passphrase.c (preset_passphrase): Use error code as-is.
(forget_passphrase): Likewise.
* tools/symcryptrun.c (confucius_get_pass): Likewise.

Signed-off-by: Justus Winter <justus@g10code.com>
2016-08-11 09:52:08 +02:00
NIIBE Yutaka f14795d57f agent: SSH support fix.
* agent/command-ssh.c (ssh_handler_request_identities): Keep error
message same.

--

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2016-08-10 13:51:14 +09:00
Werner Koch e630f90499
agent: Fix regression in recent ssh changes.
* agent/command-ssh.c (sexp_key_construct): Lowercase the algo name.
--

We need to use a lowercase version of the algo in S-expression.
Unfortunately Libgcrypt has no function for this, thus we need to
malloc and first.

Fixes-commit: ebf24e3
Signed-off-by: Werner Koch <wk@gnupg.org>
2016-08-09 17:44:54 +02:00
Ben Kibbey 49829c29e5 Cleanup initialization of libgcrypt.
* common/init.c (init_common_subsystems): Initialize libgcrypt.
* dirmngr/Makefile.am (dirmngr_ldap): Link with libgcrypt.

--
Most other modules already call gcry_check_version() after
init_common_subsystems() so may as well move initialization of libgcrypt
to here. Also fixes a warning in the system log from gpgconf --homedir.

Signed-off-by: Ben Kibbey <bjk@luxsci.net>
2016-08-09 10:47:46 +02:00
NIIBE Yutaka ebf24e3b29 agent: SSH support improvement.
* agent/command-ssh.c (ssh_handler_request_identities): Skip a key with
error, not giving up to handle the request itself.
* agent/cvt-openpgp.c (extract_private_key): Support "ecdsa" key.

--

Note that "ecdsa" key is still in use by old versions of gpg-agent
through its SSH handling (until 2.1.14).  With old versions of
gpg-agent, adding ECDSA key by ssh-add command, "ecdsa" key will be
created.  So, "ecdsa" key should be supported.

For g10/gpg, "ecdsa" and "ecdh" was only used in some experimental
versions of libgcrypt, with parameters.  We now use "ecc" for all cases
in released versions.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2016-08-09 11:42:20 +09:00
NIIBE Yutaka 591a8373a5 agent: More clean up of SSH support.
* common/util.h (get_pk_algo_from_key): New.
* common/sexputil.c (get_pk_algo_from_key): The implementation.
* agent/gpg-agent.c: Remove include of openpgpdefs.h.
* agent/command-ssh.c (struct ssh_key_type_spec): Use integer ALGO.
(ssh_key_types): Update with GCRY_PK_*.
(make_cstring, sexp_extract_identifier): Remove.
(sexp_key_construct): Use gcry_pk_algo_name to get ALGO string.
(ssh_key_to_blob): Use cadr to get value list.
(ssh_key_type_lookup): Lookup with integer ALGO.
(ssh_receive_key): Follow the change of ssh_key_type_lookup.
(ssh_send_key_public): Likewise.  Use get_pk_algo_from_key to get ALGO.

--

This fixes the regresson introduced by the commit
894789c329.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2016-08-08 18:55:53 +09:00
Werner Koch 40d16029ed
agent: Fix long standing regression tracking the connection count.
* agent/gpg-agent.c (get_agent_active_connection_count): New.
(do_start_connection_thread, start_connection_thread_ssh): Bump
ACTIVE_CONNECTIONS up and down.
* agent/command.c (cmd_getinfo): Add subcommand "connections".
--

The variable ACTIVE_CONNECTIONS is used to shutdown gpg-agent in a
friendly way.  Before we switched to nPth a Pth provided count of
threads was used for this.  During the migration to nPth
ACTIVE_CONNECTIONS was introduced and checked but never set.

Signed-off-by: Werner Koch <wk@gnupg.org>
2016-08-06 10:15:47 +02:00
NIIBE Yutaka 894789c329 agent: Clean up SSH support.
* agent/command-ssh.c (file_to_buffer): Remove.
(ssh_handler_request_identities): Use agent_public_key_from_file.

--

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2016-08-06 14:47:29 +09:00
Daniel Kahn Gillmor dc107b7850 More cleanup of "allow to".
* README, agent/command.c, agent/keyformat.txt, common/i18n.c,
  common/iobuf.c, common/keyserver.h, dirmngr/cdblib.c,
  dirmngr/ldap-wrapper.c, doc/DETAILS, doc/TRANSLATE,
  doc/announce-2.1.txt, doc/gpg.texi, doc/gpgsm.texi,
  doc/scdaemon.texi, doc/tools.texi, doc/whats-new-in-2.1.txt,
  g10/export.c, g10/getkey.c, g10/import.c, g10/keyedit.c, m4/ksba.m4,
  m4/libgcrypt.m4, m4/ntbtls.m4, po/ca.po, po/cs.po, po/da.po,
  po/de.po, po/el.po, po/eo.po, po/es.po, po/et.po, po/fi.po,
  po/fr.po, po/gl.po, po/hu.po, po/id.po, po/it.po, po/ja.po,
  po/nb.po, po/pl.po, po/pt.po, po/ro.po, po/ru.po, po/sk.po,
  po/sv.po, po/tr.po, po/uk.po, po/zh_CN.po, po/zh_TW.po,
  scd/app-p15.c, scd/ccid-driver.c, scd/command.c, sm/gpgsm.c,
  sm/sign.c, tools/gpgconf-comp.c, tools/gpgtar.h: replace "Allow to"
  with clearer text.

In standard English, the normal construction is "${XXX} allows ${YYY}
to" -- that is, the subject (${XXX}) of the sentence is allowing the
object (${YYY}) to do something.  When the object is missing, the
phrasing sounds awkward, even if the object is implied by context.
There's almost always a better construction that isn't as awkward.

These changes should make the language a bit clearer.

Signed-off-by: Daniel Kahn Gillmor <dkg@fifthhorseman.net>
2016-08-03 16:55:33 +02:00
Daniel Kahn Gillmor cd45cf782b Fix spelling and grammar.
* agent/learncard.c: s/coccured/occurred/
* doc/dirmngr.texi: s/ommitted/omitted/, s/orginally/originally/,
  s/reponses/responses/i
* doc/gpg-agent.texi, doc/dirmngr.texi, doc/gpg.texi: Fix "allows
  to" to more conventional english usage.
* doc/tools.texi, g10/gpgcommpose.c, tests/openpgp/armor.scm,
  tests/openpgp/armor.test: s/occured/occurred/
* tools/gpgsplit.c: s/calcualting/calculating/
* sm/server.c: s/formated/formatted/

Signed-off-by: Daniel Kahn Gillmor <dkg@fifthhorseman.net>
2016-08-03 16:54:01 +02:00
Justus Winter 270f7f7b8b agent: Add known keys to sshcontrol.
* agent/command-ssh.c (ssh_identity_register): Add a key to sshcontrol
even if it is already in the private key store.
* tests/openpgp/ssh.scm: Test this.

GnuPG-bug-id: 2316
Signed-off-by: Justus Winter <justus@g10code.com>
2016-07-19 16:51:16 +02:00
Justus Winter f474249366 agent: Fix passphrase cache lookups.
CACHE_MODE_ANY is supposed to match any cache mode except
CACHE_MODE_IGNORE, but the code used '==' to compare cache modes.

* agent/cache.c (cache_mode_equal): New function.
(agent_set_cache): Use the new function to compare cache modes.
(agent_get_cache): Likewise.
* tests/openpgp/Makefile.am (TESTS): Add new test.
* tests/openpgp/issue2015.scm: New file.

GnuPG-bug-id: 2015
Signed-off-by: Justus Winter <justus@g10code.com>
2016-07-18 12:51:38 +02:00
Werner Koch c98995efef
build: Require latest released libraries
* agent/protect.c (OCB_MODE_SUPPORTED): Remove macro.
(do_encryption): Always support OCB.
(do_decryption): Ditto.
(agent_unprotect): Ditto.
* dirmngr/server.c (is_tor_running): Unconditionally build this.
--

Although not technically required, it is easier to require them to
avoid bug reports due to too old library versions.

Signed-off-by: Werner Koch <wk@gnupg.org>
2016-07-14 10:48:34 +02:00
NIIBE Yutaka 7be2181777 agent: Fix envvars for UPDATESTARTUPTTY.
agent/command.c (cmd_updatestartuptty): Use session_env_list_stdenvnames
to get the list.

--

Debian-bug-id: 801247
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2016-07-13 09:24:26 +09:00
Werner Koch 3ead21da80
common: Add dedicated private key functions to name-value.c.
* common/name-value.c (struct name_value_container): Add field
'private_key_mode'.
(my_error): New.  Use instead of gpg_error.
(nvc_new_private_key): New.
(nve_release): Add arg 'private_key_mode'.
(nvc_release): Call nve_release with private_key_mode flag.
(nvc_delete): Ditto.
(_nvc_add): Do no special case "Key:" in non-private_key_mode.
(nvc_get_private_key): Return error in non-private_key_mode.
(nvc_set_private_key): Ditto.
(nvc_parse):  Factor all code out to ...
(do_nvc_parse): new.  Add arg 'for_private_key'.
(nvc_parse_private_key): New.
* agent/findkey.c (write_extended_private_key): Replace nvc_parse by
nvc_parse_private_key.
(read_key_file): Ditto.

* common/t-name-value.c (private_key_mode): New variable.
(my_nvc_new): New.  Replace all callers.
(test_key_extraction): Take mode in account.
(run_tests): Ditto.
(run_modification_tests): Ditto.
(parse): Ditto.
(main): Add option --parse and rename --parse to --parse-key.
--

Signed-off-by: Werner Koch <wk@gnupg.org>
2016-06-23 13:17:25 +02:00
Werner Koch d74d23d860
common: Rename external symbols in name-value.c.
* common/name-value.c, common/name-value.h: Rename symbol prefixes
from "pkc_" to "nvc_" and from "pke_" to "nve_".  Change all callers.

Signed-off-by: Werner Koch <wk@gnupg.org>
2016-06-23 12:12:50 +02:00
Werner Koch b841a883a2
common: Rename private-keys.c to name-value.c
* common/private-keys.c: Rename to name-value.c.
* common/private-keys.h: Rename to name-value.h.  Chage all users.
* common/t-private-keys.c: Rename to t-name-value.c.
* common/Makefile.am: Adjust accordingly.
--

The module is cool enough to be used for other purposes as well.  Thus
we better change the name.

Signed-off-by: Werner Koch <wk@gnupg.org>
2016-06-23 11:55:46 +02:00
Daniel Kahn Gillmor 7de7432076
g10: Add openpgp_protected flag to agent secret key export functions
* g10/call-agent.c, g10/call-agent.h (agent_export_key): Add
openpgp_protected flag.
* g10/export.c (receive_seckey_from_agent): Request openpgp_protected
secret keys from agent.
* agent/command.c (hlp_export_key): EXPORT_KEY help text: add a
brief description of the effect of --openpgp.
--

The --openpgp flag for gpg-agent's EXPORT_KEY actually forces
encryption in a certain (RFC 4880-compatible format).  This changeset
exposes that functionality in internal functions, and clarifies
functionality in the agent's help text.

Signed-off-by: Daniel Kahn Gillmor <dkg@fifthhorseman.net>
2016-06-11 11:14:00 +02:00
Werner Koch 8127043d54
Explicitly restrict socket permissions.
* agent/gpg-agent.c (create_server_socket): Call chmod before listen.
* scd/scdaemon.c (create_server_socket): Ditto.
* dirmngr/dirmngr.c (main): Ditto.
--

This is just in case of a improperly set umask.  Note that a connect
requires a write permissions.
2016-06-08 16:18:02 +02:00
Werner Koch 6790115fd9
w32: Fix recent build regression.
* common/homedir.c (_gnupg_socketdir_internal) [W32]: Add definition
for NAME.
* g10/gpg.c (main) [W32]:  Fix use og gnupg_homedir.

* agent/gpg-agent.c (remove_socket): Remove unused var P.
* scd/scdaemon.c (cleanup): Ditto.

Signed-off-by: Werner Koch <wk@gnupg.org>
2016-06-08 15:14:06 +02:00
Werner Koch aab8a0b052
Implement /run/user/UID/gnupg based sockets.
* common/homedir.c: Include sys/stat.h and zb32.h.
(w32_portable_app, w32_bin_is_bin): Change type from int to byte.
(non_default_homedir): New.
(is_gnupg_default_homedir): New.
(default_homedir): Set non_default_homedir.
(gnupg_set_homedir): Set non_default_homedir and make
the_gnupg_homedir and absolute directory name.
(gnupg_homedir): Return an absolute directory name.
(_gnupg_socketdir_internal): New.
(gnupg_socketdir): Implement /run/user/ based sockets.
* tools/gpg-connect-agent.c (get_var_ext): Replace now obsolete
make_filename by xstrdup.
* tools/gpgconf.c (main): Sue gnupg_homedir for the "homedir:" output.
--

If a [/var]/run/user/$(id -u)/ directory exists, a gnupg subdir is
created as needed and the permissions of the directories are checked.
If that all matches that directory name is returned instead of the
homedir.

To cope with non standard homedirs (via GNUPGHOME or --homedir) the
SHA-1 hash of the homedir is computed, left truncated to 120 bits,
zBase-32 encoded, prefixed with "d.", and appended to
"[/var]/run/user/$(id -u)/gnupg/".  If that directory exists and has
proper permissions it is returned as socket dir - if not the homedir
is used.  Due to cleanup issues, this directory will not be
auto-created but needs to be created by the user in advance.

The required permissions are: directory owned by the user, group and
others bits not set.

Signed-off-by: Werner Koch <wk@gnupg.org>
2016-06-08 13:59:28 +02:00
Werner Koch 0faf895154
Do not try to remove the enclosing directory of sockets.
* agent/gpg-agent.c (remove_socket): Do not remove the enclosing
directory.
* scd/scdaemon.c (cleanup): Ditto.

--

The socket directory is now below /run or at ~/.gnupg.  Thus we should
not try to remove the directory of the socket.  The auto-removal was
introduced at a time we used a temporary directory for the sockets.

Signed-off-by: Werner Koch <wk@gnupg.org>
2016-06-08 09:04:29 +02:00
Werner Koch 36550dde99
common: New function gnupg_socketdir.
* common/homedir.c (gnupg_socketdir): New.
* agent/gpg-agent.c (create_socket_name): Use new function instead of
gnupg_homedir.
(check_own_socket): Ditto.
(check_for_running_agent): Ditto.
* agent/preset-passphrase.c (main): Ditto.
* common/asshelp.c (start_new_gpg_agent): Ditto.
* scd/scdaemon.c (create_socket_name): Ditto.
* tools/gpgconf.c (main): Ditto.
* tools/symcryptrun.c (main): Ditto.

Signed-off-by: Werner Koch <wk@gnupg.org>
2016-06-07 13:48:46 +02:00
Werner Koch fb88f37c40
common: Remove homedir arg from start_new_{dirmngr,gpg_agent}.
* common/asshelp.c (start_new_gpg_agent): Remove arg 'homedir' in
favor of gnupg_homedir ().  Change all callers.
(start_new_dirmngr): Ditto.
* common/get-passphrase.c (gnupg_prepare_get_passphrase): Remove arg
'homedir'.

Signed-off-by: Werner Koch <wk@gnupg.org>
2016-06-07 13:09:00 +02:00
Werner Koch 22a7ef01aa
Replace use of opt.homedir by accessor functions.
* common/homedir.c (the_gnupg_homedir): New var.
(gnupg_set_homedir): New.
(gnupg_homedir): New.
* g10/options.h (struct opt): Remove 'homedir' and replace all users
by the new accessor functions.
* g13/g13-common.h (struct opt): Ditto.
* scd/scdaemon.h (struct opt): Ditto.
* sm/gpgsm.h (struct opt): Ditto.
* dirmngr/dirmngr.h (struct opt): Ditto.
* agent/preset-passphrase.c (opt_homedir): Ditto.
* agent/protect-tool.c (opt_homedir): Ditto.
--

This will make detection of a non-default homedir easier.

Signed-off-by: Werner Koch <wk@gnupg.org>
2016-06-07 10:59:46 +02:00
Werner Koch 1b460f049e
gpg: Try to use the passphrase from the primary for --quick-addkey.
* agent/command.c (cmd_genkey): Add option --passwd-nonce.
(cmd_passwd): Return a PASSWD_NONCE in verify mode.
* g10/call-agent.c (agent_genkey): Add arg 'passwd_nonce_addr' and do
not send a RESET if given.
(agent_passwd): Add arg 'verify'.
* g10/keygen.c (common_gen): Add optional arg 'passwd_nonce_addr'.
(gen_elg, gen_dsa, gen_ecc, gen_rsa, do_create): Ditto.
(generate_subkeypair): Use sepeare hexgrip var for the to be created
for hexgrip feature.  Verify primary key first.  Make use of the
passwd nonce.  Allow for a static passphrase.

Signed-off-by: Werner Koch <wk@gnupg.org>
2016-06-02 21:21:08 +02:00
Werner Koch ac9ff644b1
gpg: Allow unattended deletion of secret keys.
* 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>
2016-05-10 11:01:42 +02:00
Werner Koch 3ef0938cfd
agent: Make --allow-loopback-pinentry the default.
* 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>
2016-05-04 09:24:18 +02:00
Justus Winter 12af2630cf common: Add support for the new extended private key format.
* agent/findkey.c (write_extended_private_key): New function.
(agent_write_private_key): Detect if an existing file is in extended
format and update the key within if it is.
(read_key_file): Handle the new format.
* agent/keyformat.txt: Document the new format.
* common/Makefile.am: Add the new files.
* common/private-keys.c: New file.
* common/private-keys.h: Likewise.
* common/t-private-keys.c: Likewise.
* common/util.h (alphap, alnump): New macros.
* tests/migrations: Add test demonstrating that we can cope with the
new format.

--
GnuPG 2.3+ will use a new format to store private keys that is both
more flexible and easier to read and edit by human beings.  The new
format stores name,value-pairs using the common mail and http header
convention.

This patch adds the parser and support code and prepares GnuPG 2.1 for
the new format.

Signed-off-by: Justus Winter <justus@g10code.com>
2016-04-21 14:38:53 +02:00
Justus Winter 342cc48889 agent: Convert key format document to org.
* agent/keyformat.txt: Convert to org mode.

Signed-off-by: Justus Winter <justus@g10code.com>
2016-04-21 14:38:53 +02:00
Justus Winter f8adf1a323 agent: Sanitize permissions of the private key directory.
* agent/gpg-agent.c (create_private_keys_directory): Set permissions.
* common/sysutils.c (modestr_to_mode): New function.
(gnupg_mkdir): Use new function.
(gnupg_chmod): New function.
* common/sysutils.h (gnupg_chmod): New prototype.
* tests/migrations/from-classic.test: Test migration with existing
directory.

GnuPG-bug-id: 2312
Signed-off-by: Justus Winter <justus@g10code.com>
2016-04-20 15:02:37 +02:00
Werner Koch 8c3fb2360f
agent: Fix regression due to recent commit 4159567.
* agent/protect.c (do_encryption): Fix CBC hashing.
--

The buggy code included an extra closing parenthesis before
the (protected-at) term in the CBC hashing.  We now do it by
explicitly hashing the protected stuff and append the rest of the
expression instead of a fixed closing parenthesis.  Note that the OCB
hashing only differs that it does no include the protected part.

Fixes-commit: 4159567f7e
Signed-off-by: Werner Koch <wk@gnupg.org>
2016-04-14 12:29:36 +02:00
Werner Koch 6df75ec70a
agent: Allow gpg-protect-tool to handle openpgp-native protection.
* agent/protect-tool.c (read_and_unprotect): Add arg ctrl and pass to
agent_unprotect.
(main): Allocate a simple CTRL object and pass it to
read_and_unprotect.
(convert_from_openpgp_native): Remove stub.
(agent_key_available, agent_get_cache): New stubs.
(agent_askpin): New emulation for the one in call-pinentry.c.
(agent_write_private_key): New to dump key.
* agent/Makefile.am (gpg_protect_tool_SOURCES): Add cvt-openpgp.c
--

Signed-off-by: Werner Koch <wk@gnupg.org>
2016-04-14 12:29:29 +02:00
Werner Koch 4159567f7e
agent: Implement new protection mode openpgp-s2k3-ocb-aes.
* agent/protect.c (agent_protect): Add arg use_ocb.  Change all caller
to pass -1 for default.
* agent/protect-tool.c: New option --debug-use-ocb.
(oDebugUseOCB): New.
(opt_debug_use_ocb): New.
(main): Set option.
(read_and_protect): Implement option.

* agent/protect.c (OCB_MODE_SUPPORTED): New macro.
(PROT_DEFAULT_TO_OCB): New macro.
(do_encryption): Add args use_ocb, hashbegin, hashlen, timestamp_exp,
and timestamp_exp_len.  Implement OCB.
(agent_protect): Change to support OCB.
(do_decryption): Add new args is_ocb, aadhole_begin, and aadhole_len.
Implement OCB.
(merge_lists): Allow NULL for sha1hash.
(agent_unprotect): Change to support OCB.
(agent_private_key_type): Remove debug output.
--

Instead of using the old OpenPGP way of appending a hash of the
plaintext and encrypt that along with the plaintext, the new scheme
uses a proper authenticated encryption mode.  See keyformat.txt for a
description.  Libgcrypt 1.7 is required.

This mode is not yet enabled because there would be no way to return
to an older GnuPG version.  To test the new scheme use
gpg-protect-tool:

 ./gpg-protect-tool -av -P abc -p --debug-use-ocb <plain.key >prot.key
 ./gpg-protect-tool -av -P abc -u <prot.key

Any key from the private key storage should work.

Signed-off-by: Werner Koch <wk@gnupg.org>
2016-04-12 14:38:44 +02:00
Werner Koch 100b413d7f
doc: Note that the persistant passphrase format is unimplemented.
--
2016-04-12 14:38:44 +02:00
Werner Koch 7faf131c8b
indent: Help Emacs not to get confused by conditional compilation.
* agent/protect.c (calibrate_get_time) [W32]: Use separate function
calls for W32 and W32CE.
--

Signed-off-by: Werner Koch <wk@gnupg.org>
2016-04-12 14:38:44 +02:00
NIIBE Yutaka 8588c2dbc4 agent: allow removal of the shadowed key.
* agent/findkey.c (agent_delete_key): Remove the key when asked.

--

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2016-03-17 08:37:58 +09:00
Justus Winter e77c85577d common: Consolidate Assuan server argument handling.
* common/Makefile.am (common_sources): Add new files.
* common/server-help.c: New file.
* common/server-help.h: Likewise.
* agent/command.c: Drop argument handling primitives in favor of using
the consolidated ones.
* dirmngr/server.c: Likewise.
* g10/server.c: Likewise.
* g13/server.c: Likewise.
* scd/command.c: Likewise.
* sm/server.c: Likewise.

Signed-off-by: Justus Winter <justus@g10code.com>
2016-03-02 14:14:33 +01:00
Werner Koch ee87c653bf
agent: Send PROGRESS status lines to the client.
* agent/gpg-agent.c (struct progress_dispatch_s): New.
(progress_dispatch_list): New.
(main): Register libgcrypt pogress handler.
(agent_libgcrypt_progress_cb): New.
(agent_set_progress_cb): New.
(unregister_progress_cb): New.
(agent_deinit_default_ctrl): Call unregister.
* agent/command.c (progress_cb): New.
(start_command_handler): Register progress callback.
--

Signed-off-by: Werner Koch <wk@gnupg.org>
2016-01-25 11:20:23 +01:00
Werner Koch 499743387f
agent: New option --pinentry-timeout
* agent/gpg-agent.c (oPinentryTimeout): New.
(opts): Add new option.
(parse_rereadable_options): PArse that option.
(main): Tell gpgconf about this option.
* agent/call-pinentry.c (start_pinentry): Send option to Pinentry.
* tools/gpgconf-comp.c (gc_options_gpg_agent): Add Option.
--

GnuPG-bug-id: 2222
Signed-off-by: Werner Koch <wk@gnupg.org>
2016-01-20 11:22:44 +01:00
Werner Koch e2f984b4af
ssh: Accept OpenSSH *cert-v01 key variants.
* agent/command-ssh.c (SPEC_FLAG_WITH_CERT): New.
(ssh_key_types): Add OpenSSH cert types.
(stream_read_string): Allow a dummy read.
(ssh_receive_mpint_list): Pass SPEC by reference.
(ssh_receive_mpint_list): New arg CERT and use it.
(ssh_receive_key): Read certificate into an estream object and modify
parser to make use of that object.
--

This is a first step to support certificate via the agent.  The only
effect of this change is the removal of an error message parsing the
certificate.  Note that ssh-add sends the private key anyway first and
only then follows with the certificate+private key.

What we need to implement next is a way to store the certificate in
the agent and return it on request.

Signed-off-by: Werner Koch <wk@gnupg.org>
2016-01-12 19:12:02 +01:00
Werner Koch 833ba5faa1
common: New put_membuf_cb to replace static membuf_data_cb.
* common/membuf.c (put_membuf_cb): New.
* agent/call-scd.c (membuf_data_cb): Remove.  Change callers to use
put_membuf_cb.
* common/get-passphrase.c (membuf_data_cb): Ditto.
* g10/call-agent.c (membuf_data_cb): Ditto.
* sm/call-agent.c (membuf_data_cb): Ditto.
--

Signed-off-by: Werner Koch <wk@gnupg.org>
2016-01-08 06:33:27 +01:00