* g10/options.h (IMPORT_NO_SECKEY): New.
* g10/keyserver.c (keyserver_spawn, keyserver_import_cert): Set new
flag.
* g10/import.c (import_secret_one): Deny import if flag is set.
--
By modifying a keyserver or a DNS record to send a secret key, an
attacker could trick a user into signing using a different key and
user id. The trust model should protect against such rogue keys but
we better make sure that secret keys are never received from remote
sources.
Suggested-by: Stefan Tomanek
Signed-off-by: Werner Koch <wk@gnupg.org>
* include/cipher.h (PUBKEY_USAGE_NONE): New.
* g10/getkey.c (parse_key_usage): Set new flag.
--
We do not want to use the default capabilities (derived from the
algorithm) if any key flags are given in a signature. Thus if key
flags are used in any way, the default key capabilities are never
used.
This allows to create a key with key flags set to all zero so it can't
be used. This better reflects common sense.
(cherry picked from commit 4bde12206c)
* keyserver/gpgkeys_curl.c (main): Set CURLOPT_CAINFO only if a file
has been given.
* keyserver/gpgkeys_hkp.c (main): Ditto.
--
GnuPG-bug-id: 1542
Signed-off-by: Werner Koch <wk@gnupg.org>
* common/iobuf.c (MAX_NESTING_FILTER): New.
(iobuf_push_filter2): Limit the nesting level.
* g10/mainproc.c (mainproc_context): New field ANY. Change HAVE_DATA
and ANY_SIG_SIGN to bit fields of ANY. Add bit field
UNCOMPRESS_FAILED.
(proc_compressed): Avoid printing multiple Bad Data messages.
(check_nesting): Return GPG_ERR_BAD_DATA instead of UNEXPECTED_DATA.
--
This is a more general fix for the nested compression packet bug. In
particular this helps g10/import.c:read_block to stop pushing
compression filters onto an iobuf stream. This patch also reduces the
number of error messages for the non-import case.
Signed-off-by: Werner Koch <wk@gnupg.org>
* scd/apdu.c (CM_IOCTL_GET_FEATURE_REQUEST): Use SCARD_CTL_CODE.
(SCARD_CTL_CODE): Define if not defined.
(reader_table_s): Add is_spr532.
(new_reader_slot): Clear it.
(check_pcsc_pinpad): Set it.
(pcsc_pinpad_verify, pcsc_pinpad_modify): Add fix for SPR532.
Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit 5c5e52df4b)
* configure.ac (NEED_GPG_ERROR_VERSION): Set to 1.11.
* common/util.h: Remove GPG_ERR_ replacements.
--
The replacement macros actually never worked because gog-error.h uses
enums and not macros. libgpg-error 1.11 is 6 months old and thus it
should not be a problem to require that version.
Future replacement macros may then use the new
GPG_ERROR_VERSION_NUMBER to detect missing error codes.
Signed-off-by: Werner Koch <wk@gnupg.org>
* agent/command-ssh.c (setup_ssh_env): Fix env setting.
--
gniibe reported this to gnupg-devel on 2012-07-04:
[...]
(2) UPDATESTARTUPTTY doesn't work to switch TTY for pinentry for
SSH.
[...]
Current implementation:
In the function start_command_handler_ssh, the logic puts
priority on ctrl->session_env which is initialized by
agent_init_default_ctrl. There are always GPG_TTY and TERM
defined, because lines around 968 in gpg-agent.c, it says:
/* Make sure that we have a default ttyname. */
While UPDATESTARTUPTTY updates opt.startup_env, it doesn't
affect at all.
Here is a patch to point the issue. Tested and works for me.
Signed-off-by: Werner Koch <wk@gnupg.org>
* tests/openpgp/Makefile.am (./gpg_dearmor): Add option --homedir.
--
The dearmor code might create files in the source directory during a
test run. Adding "--homedir ." should solve this.
GnuPG-bug-id: 1498.
Signed-off-by: Werner Koch <wk@gnupg.org>
* agent/command-ssh.c (struct control_file_s): Rename to
ssh_control_file_s.
(ssh_open_control_file, ssh_close_control_file)
(ssh_read_control_file, ssh_search_control_file): New.
(control_file_t): Rename and move to ...
* agent/agent.h (ssh_control_file_t): here.
* agent/command.c (do_one_keyinfo): Add args is_ssh, ttl, disabled,
and confirm. Rename unknown keytype indicator from '-' to 'X'. Extend
output.
(cmd_keyinfo): Add options --ssh-list and --with-ssh.
--
This extension allows the development of frontends to manage the
sshcontrol file.
Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit 50c98c7ed6)
Conflicts in agent/command.c (due to less information printed by
keyinfo) solved.
* common/homedir.c (w32_bin_is_bin, w32_portable_app) [W32]: New.
(check_portable_app) [W32]: New.
(standard_homedir, default_homedir) [W32]: Support the portable flag.
(w32_rootdir, w32_commondir) [W32]: Ditto.
(gnupg_bindir) [W32]: Ditto.
--
A portable use of GnuPG under Windows means that GnuPG uses a home
directory depending on the location of the actual binary. No registry
variables are considered. The portable mode is enabled if in the
installation directory of the the binary "gpgconf.exe" and a file
"gpgconf.ctl" are found. The latter file shall be empty or consist
only of empty or '#'-style comment lines.
Signed-off-by: Werner Koch <wk@gnupg.org>
* configure.ac (missing_iconv): Set and die if we have no libiconv.
* m4/iconv.m4: Update from libiconv 1.14.
* tools/Makefile.am (gpgtar_LDADD): Add LIBICONV.
* jnlib/utf8conv.c: Always include iconv.h
(load_libiconv): Remove this w32 only function.
(iconv_open, iconv, iconv_close): Remove W32 function pointer.
(set_native_charset): Do not call load_libiconv.
(jnlib_iconv_open, jnlib_iconv, jnlib_iconv_close): Ditto.
--
This patch removes the on-demand-loading of libiconv which we did for
13 years or so. The rationale back then was that libiconv is too
large and often not used. Nowadays all kind of Unix software has been
ported to Windows and many of them require libiconv. Thus in the end
there is no saving from not requiring it. It also remove a common
source of trouble with awrong or missing iconv.dll.
Signed-off-by: Werner Koch <wk@gnupg.org>
* agent/gpg-agent.c (opts, main): Add option --no-allow-mark-trusted.
Put this option into the gpgconf-list.
(main): Enable opt.allow_mark_trusted by default.
* tools/gpgconf-comp.c (gc_options_gpg_agent): Replace
allow-mark-trusted by no-allow-mark-trusted.
* agent/trustlist.c (agent_marktrusted): Always set the "relax" flag.
--
These changes have been in effect for the Gpg4win Windows version
since 2011-01-24 and thus first released with Gpg4win 2.1.0. Given
the current state of PKIX it does not make any sense to lure the Unix
user into false security by making it harder to trust self-signed or
CAcert certificates.
Signed-off-by: Werner Koch <wk@gnupg.org>
* agent/gpg-agent.c [W32]: Include Several Windows header.
(opts): Change help text for enable-ssh-support.
(opts, main): Add option --enable-putty-support
(putty_support, PUTTY_IPC_MAGIC, PUTTY_IPC_MAXLEN): New for W32.
(agent_init_default_ctrl): Add and asssert call.
(putty_message_proc, putty_message_thread): New.
(handle_connections) [W32]: Start putty message thread.
* common/sysutils.c (w32_get_user_sid): New for W32 only
* tools/gpgconf-comp.c (gc_options_gpg_agent): Add
--enable-ssh-support and --enable-putty-support. Make the
configuration group visible at basic level.
* agent/command-ssh.c (serve_mmapped_ssh_request): New for W32 only.
--
This patch enables support for Putty. It has been tested with Putty
0.62 using an Unix created ssh key copied to the private-keys-v1.d
directory on Windows and with a manually crafted sshcontrol file. It
also works with a smartcard key.
May thanks to gniibe who implemented a proxy in Python to test the
putty/gpg-agent communication.
Signed-off-by: Werner Koch <wk@gnupg.org>
* agent/command-ssh.c (file_to_buffer)
(ssh_handler_request_identities): Open streams in binary mode.
(start_command_handler_ssh): Factor some code out to ..
(setup_ssh_env): new function.
--
This is for now a theoretical fix because there is no ssh client yet
which uses the GnuPG style IPC. OpenSSL for Cygwin uses only a quite
similar one. gniibe suggested to implement that IPC style in
Libassuan so that a Cygwin version of OpenSSL may be used with GnuPG.
Signed-off-by: Werner Koch <wk@gnupg.org>
* configure.ac (AH_BOTTOM): Define GCRYPT_NO_DEPRECATED.
--
Frankly, I don't understand why gcc prints them. We don't use them.
Signed-off-by: Werner Koch <wk@gnupg.org>
* agent/command-ssh.c (SPEC_FLAG_IS_ECDSA): New.
(struct ssh_key_type_spec): Add fields CURVE_NAME and HASH_ALGO.
(ssh_key_types): Add types ecdsa-sha2-nistp{256,384,521}.
(ssh_signature_encoder_t): Add arg spec and adjust all callers.
(ssh_signature_encoder_ecdsa): New.
(sexp_key_construct, sexp_key_extract, ssh_receive_key)
(ssh_convert_key_to_blob): Support ecdsa.
(ssh_identifier_from_curve_name): New.
(ssh_send_key_public): Retrieve and pass the curve_name.
(key_secret_to_public): Ditto.
(data_sign): Add arg SPEC and change callers to pass it.
(ssh_handler_sign_request): Get the hash algo from SPEC.
* common/ssh-utils.c (get_fingerprint): Support ecdsa.
* agent/protect.c (protect_info): Add flag ECC_HACK.
(agent_protect): Allow the use of the "curve" parameter.
* agent/t-protect.c (test_agent_protect): Add a test case for ecdsa.
* agent/command-ssh.c (ssh_key_grip): Print a better error code.
--
The 3 standard curves are now supported in gpg-agent's ssh-agent
protocol implementation. I tested this with all 3 curves and keys
generated by OpenSSH 5.9p1.
Using existing non-ssh generated keys will likely fail for now. To fix
this, the code should first undergo some more cleanup; then the fixes
are pretty straightforward. And yes, the data structures are way too
complicated.
(cherry picked from commit 649b31c663)
Solved conflicts:
agent/protect.c
agent/t-protect.c
common/ssh-utils.c (different variabale name)
* common/estream.c (cookie_ioctl_function_t): New type.
(es_fclose_snatch): New function.
(COOKIE_IOCTL_SNATCH_BUFFER): New constant.
(struct estream_internal): Add field FUNC_IOCTL.
(es_initialize): Clear FUNC_IOCTL.
(es_func_mem_ioctl): New function.
(es_fopenmem): Init FUNC_IOCTL.
--
(back ported from commit id 7737a2c269)
Signed-off-by: Werner Koch <wk@gnupg.org>
* agent/command-ssh.c (ssh_signature_encoder_dsa): Rewrite.
--
Using es_fopenmem instead of a preallocated buffer is safer and easier
to read.
(cherry picked from commit f76a0312c3)
* agent/command-ssh.c: Remove dirent.h.
(control_file_s): Add struct item.
(rewind_control_file): New.
(search_control_file): Factor code out to ...
(read_control_file_item): New.
(ssh_handler_request_identities): Change to iterate over entries in
sshcontrol.
--
Formerly we scanned the private key directory for matches of entries
in sshcontrol. This patch changes it to scan the sshcontrol file and
thus considers only keys configured there. The rationale for this is
that it is common to have only a few ssh keys but many private keys.
Even if that assumption does not hold true, the scanning of the
sshcontrol file is faster than reading the directory and only then
scanning the ssh control for each directory entry.
(cherry picked from commit d2777f84be)
* agent/command-ssh.c (SSH_CONTROL_FILE_NAME): New macro to replace
the direct use of the string.
(struct control_file_s, control_file_t): New.
(open_control_file, close_control_file): New. Use them instead of
using fopen/fclose directly.
--
(cherry picked from commit 25fb53ab4a)
Fixed conflicts in some variabale names.
* agent/command-ssh.c (ssh_handler_request_identities): Do not call
card_key_available if the scdaemon is disabled.
--
(back ported from commit id 781e9746df)
* agent/command-ssh.c (open_control_file): Use_es_fopen to support
the "wx" mode flag.
--
This also patch also specifies a file mode parameter. However, this
will only be used with an updated version of es_stream which we have
not yet done.
