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650 Commits

Author SHA1 Message Date
NIIBE Yutaka
d05221065f dirmngr: Clean up for not supporting WindowsCE.
* dirmngr/Makefile.am (dirmngr_SOURCES): Remove w32-ldap-help.h.
* dirmngr/cdblib.c (cdb_init): Remove for __MINGW32CE__.
* dirmngr/w32-ldap-help.h: Remove.

--

Fixes-commit: 4c295646ba
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2022-03-29 13:41:04 +09:00
Werner Koch
435861b9fb
dirmngr: Escape more characters in WKD requests.
* dirmngr/server.c (proc_wkd_get): Also escape '#' and '+'
--
GnuPG-bug-id: 5902
2022-03-28 16:12:03 +02:00
Werner Koch
90caa7ad59
dirmngr: Workaround for a certain broken LDAP URL
* dirmngr/ldap.c (url_fetch_ldap): Detect and replace.
--

The actual URL causing this is

ldap://ldap.dgnservice.de:389/CN=CRL-1,O=DGN%20Service%20GmbH,\
C=DE?certificateRevocationList?base?objectClass=cRLDistributionPoint

It is actually not very helpful because I had problems finding the
issuer cert:

CN=dgnservice CRL2101 13:PN,O=DGN Deutsches Gesundheitsnetz \
Service GmbH,C=DE
2022-03-25 13:36:20 +01:00
NIIBE Yutaka
25d37a0a6a dirmngr: Suppress error message on trial reading as PEM format.
* dirmngr/dirmngr-client.c (read_pem_certificate): Add NO_ERRMSG
argument to suppress the error message.
(read_certificate, squid_loop_body): Follow the change.

--

GnuPG-bug-id: 5531
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2022-03-25 08:41:51 +09:00
NIIBE Yutaka
4d19759ce5 dirmngr: Clear the error count to try certificate as binary.
* dirmngr/dirmngr-client.c (read_certificate): Call
log_get_errorcount.

--

GnuPG-bug-id: 5531
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2022-03-24 13:55:32 +09:00
Werner Koch
92c8ae720e
dirmngr: Make WKD_GET work even for servers not handling SRV RRs.
* dirmngr/server.c (proc_wkd_get): Take care of DNS server failures
--

Unfortunately there are resolver setups which don't handle SRV records
but return a server error.  We let a not found error pass, because
that merely means the domain does not exists.

GnuPG-bug-id: 4729
2022-03-21 22:38:22 +01:00
Werner Koch
b901e63b4d
dimngr: Do not check the self-signature of a root CA cert.
* dirmngr/validate.c (validate_cert_chain): Comment out that code.
2022-02-27 12:26:38 +01:00
Werner Koch
de87c8e1ea
dirmngr: Support ECDSA for CRLs
* dirmngr/crlcache.c (finish_sig_check): Support ECDSA.
* dirmngr/validate.c (check_cert_sig): Ditto.  Remove the never
used support for DSA.
2022-02-27 12:26:38 +01:00
Werner Koch
890e9849b5
dirmngr: Support ECDSA for OCSP.
* dirmngr/validate.c (pk_algo_from_sexp): Make public.  Support ECC.
* dirmngr/ocsp.c (check_signature): Remove hash preparation out to ...
(check_signature_core): here.  This changes the arg s_hash to md.
Support ECDSA.
--

The test was done with my qualified signature certificate from the
Telesec and their responder http://tqrca1.ocsp.telesec.de/ocspr .
See also libksba commit rK24992a4a7a61d93759e1dbd104b845903d4589bf
2022-02-27 12:26:38 +01:00
Werner Koch
57d546674d
dirmngr: Avoid initial delay on the first keyserver access.
* dirmngr/dirmngr.c (dirmngr_never_use_tor_p): New.
* dirmngr/server.c (ensure_keyserver): Don't even test for the Tor
proxy in never-use-tor Mode.

* tools/gpgtar-create.c: Include unistd.h to avoid a warning on
Windows.
--

This delay of 2 or 3 seconds is in particular annoying on Windows.
This is now suppressed, as it should be, if --no-use-tor is used.

The second patch is unrelated
2022-02-01 16:03:06 +01:00
Werner Koch
0b4fdbd5f4
gpgconf: Return --ldapserver and --keyserver from dirmngr.
* dirmngr/dirmngr.c: Reorder two option groups.
* tools/gpgconf-comp.c (known_options_gpgsm): Rename "keyserver" to
"ldapserver" and set level to invisible.
(known_options_dirmngr): Add "ldapserver" at the basic level.
* sm/gpgsm.c (opts): No more help text for "ldapserver".
--

GnuPG-bug-id: 5800
2022-01-25 20:24:25 +01:00
Werner Koch
d445e19365
dirmngr: Map all gnupg.net addresses to the Ubuntu keyserver.
* dirmngr/server.c (make_keyserver_item): Change mapping.
--

It turned out that having the old surfnet keyserver for unencrypted
connections is problematic because that server does not sync with the
Ubuntu server.

GnuPG-bug-id: 5751
2022-01-10 09:13:43 +01:00
NIIBE Yutaka
6b4441a7de build: Update for newer autoconf.
* configure.ac (AC_PREREQ): Use >= 2.69.
(AC_CONFIG_HEADERS): Use it, instead of AC_CONFIG_HEADER.
(AC_HEADER_STDC, AC_HEADER_TIME): Remove obsolete macros.
(sys/time.h): Add the check of the header.
(time_t): Don't use TIME_WITH_SYS_TIME.
* acinclude.m4 (AC_HEADER_TIME): Don't require.
Don't use TIME_WITH_SYS_TIME.
* dirmngr/dns.c: Don't use TIME_WITH_SYS_TIME.

--

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2021-12-22 10:36:26 +09:00
Ingo Klöcker
c7fa4c7f8b dirmngr: Ask keyservers to provide the key fingerprints
* dirmngr/ks-engine-hkp.c (ks_hkp_search): Add "fingerprint=on" to
request URL.
--

Some keyservers, e.g. keyserver.ubuntu.com (Hockeypuck), do not
provide the key fingerprints by default. Therefore, we ask for the
fingerprints explicitly.

GnuPG-bug-id: 5741
2021-12-20 09:25:26 +01:00
NIIBE Yutaka
a9b95b20a8 dirmngr: Fix ldap-url.c.
* dirmngr/ldap-url.c (ldap_charray2str): Use memcpy instead of strncpy
when length is computed by strlen beforhand.

--

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2021-12-17 13:33:40 +09:00
Jakub Jelen
940af3f052 dirmngr: Avoid memory leaks on errors
* dirmngr/ldap-misc.c (ldap_parse_extfilter): Avoid direct return
  without freeing resources on errors.
--

GnuPG-bug-id: 5393
Signed-off-by: Jakub Jelen <jjelen@redhat.com>
2021-11-24 10:50:33 +09:00
Werner Koch
dd708f60d5
agent,dirmngr: New option --steal-socket
* agent/gpg-agent.c (oStealSocket): New.
(opts): Add option.
(steal_socket): New file global var.
(main): Set option.
(create_server_socket): Implement option.

* dirmngr/dirmngr.c (oStealSocket): New.
(opts): Add option.
(steal_socket): New file global var.
(main): Set option.  Add comment to eventually implement it.
--

Note that --steal-socket has currently no effect on dirmngr because
dirmngr does this anway.

Signed-off-by: Werner Koch <wk@gnupg.org>
2021-11-13 14:56:40 +01:00
NIIBE Yutaka
48359c7232 dns: Make reading resolv.conf more robust.
* dirmngr/dns.c (dns_resconf_loadfile): Skip "search" which
begins with '.'.

--

GnuPG-bug-id: 5657
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2021-10-15 10:54:30 +09:00
Werner Koch
4b3e9a44b5
dirmngr: New option --ignore-cert
* dirmngr/dirmngr.h (struct fingerprint_list_s): Add field binlen.
(opt): Add field ignored_certs.
* dirmngr/dirmngr.c: Add option --ignore-cert
(parse_rereadable_options): Handle that option.
(parse_ocsp_signer): Rename to ...
(parse_fingerprint_item): this and add two args.
* dirmngr/certcache.c (put_cert): Ignore all to be igored certs.
Change callers to handle the new error return.
--

This option is useful as a workaround in case we ill run into other
chain validation errors like what we fixed in
GnuPG-bug-id: 5639
2021-10-06 10:35:51 +02:00
Werner Koch
6879937885
dirmngr: Fix Let's Encrypt certificate chain validation.
* dirmngr/certcache.c (find_cert_bysubject): Return the first trusted
certififcate if any.
--

This is basically the same as using OpenSSL with ist
X509_V_FLAG_TRUSTED_FIRST flag. See
https://www.openssl.org/blog/blog/2021/09/13/LetsEncryptRootCertExpire/

GnuPG-bug-id: 5639
2021-10-06 10:35:51 +02:00
NIIBE Yutaka
3918fa1a94 agent,dirmngr,kbx,scd,tpm2d: Use gnupg_sleep.
* agent/findkey.c (unprotect): Use gnupg_sleep.
* agent/gpg-agent.c (handle_connections): Likewise.
* dirmngr/crlfetch.c (handle_connections): Likewise.
* kbx/keyboxd.c (handle_connections): Likewise.
* tpm2d/tpm3daemon.c (handle_connections): Likewise.
* scd/scdaemon.c (handle_connections): Likewise.
* scd/command.c (cmd_lock): Likewise.
* dirmngr/ldap-wrapper.c (ldap_reaper_thread): Likewise.
(ldap_wrapper_wait_connections): Use gnupg_usleep.

--

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2021-10-05 14:05:56 +09:00
Ingo Klöcker
e2069d5632 build: Fix several "include file not found" problems
* dirmngr/Makefile.am (t_ldap_parse_uri_CFLAGS): Add KSBA_CFLAGS.
* kbx/Makefile.am (libkeybox_a_CFLAGS, libkeybox509_a_CFLAGS): Add
NPTH_CFLAGS.
* tools/Makefile.am (gpgtar_CFLAGS, gpg_wks_server_CFLAGS,
gpg_wks_client_CFLAGS, gpg_pair_tool_CFLAGS): Add LIBGCRYPT_CFLAGS.
--

The tools include gcrypt.h via common/util.h.

GnuPG-bug-id: 5592
2021-09-20 12:39:29 +02:00
Werner Koch
55b5928099
dirmngr: Change the default keyserver.
* configure.ac (DIRMNGR_DEFAULT_KEYSERVER): Change to
keyserver.ubuntu.com.

* dirmngr/certcache.c (cert_cache_init): Disable default pool cert.
* dirmngr/http-ntbtls.c (gnupg_http_tls_verify_cb): Ditto.
* dirmngr/http.c (http_session_new): Ditto.

* dirmngr/server.c (make_keyserver_item): Use a different mapping for
the gnupg.net names.
--

Due to the unfortunate shutdown of the keyserver pool, the long term
defaults won't work anymore.  Thus it is better to change them.

For https access keyserver.ubuntu.com is now used because it can be
expected that this server can stand the load from newer gnupg LTS
versions.

For http based access the Dutch Surfnet keyserver is used.  However
due to a non-standard TLS certificate this server can not easily be
made the default for https.

Note: that the default server will be changed again as soon as a new
connected keyserver infrastructure has been established.

(cherry picked from commit 47c4e3e00a)
2021-08-24 18:09:56 +02:00
NIIBE Yutaka
29d58e9de7 build: Simplify for string.h and getopt.h.
* configure.ac (AC_CHECK_HEADERS): Remove string.h and getopt.h.
* dirmngr/ks-engine-ldap.c: Remove including getopt.h.
* tools/make-dns-cert.c: Likewise.

--

Checking string.h is supported by AC_HEADER_STDC.  Use of getopt.h
is only needed for getopt_long of GNU extention.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2021-08-05 14:01:14 +09:00
Werner Koch
d5126efd89
dirmngr: Fix regression in KS_GET for mail address pattern.
* dirmngr/ks-engine-hkp.c (ks_hkp_search): Munge mail address pattern.
(ks_hkp_get): Allow for mail addresses.
-

Before the keyserver changes in 2.2.28 gpg passed dirmngr a pail
address as an exact pattern (e.g. "=foo@example.org").  Since 2.2.28
the mail address is detected gpg gpg and we see for example
"<foo@example.org>".  This patch fixes this to turn a mail address
into an exact match again.

GnuPG-bug-id: 5497
Signed-off-by: Werner Koch <wk@gnupg.org>
2021-06-21 09:32:16 +02:00
NIIBE Yutaka
c6900f5723
dirmngr: Fix build with --disable-ldap.
* dirmngr/dirmngr.c (parse_rereadable_options) [USE_LDAP]:
Conditionalize.

--

Reported-by: Phil Pennock
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
(cherry picked from commit c8b2162c0e)
2021-06-16 13:06:40 +02:00
Werner Koch
14528ec66b
dirmngr: Allow to pass no filter args to dirmngr_ldap.
* dirmngr/dirmngr_ldap.c (main): Handle no args case.
--

This is required for example for CRLs.  The old code did not require
this because the hos was taken from the URL given has arg.

Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit f6e45671aa)
2021-06-16 12:59:49 +02:00
Werner Koch
864ea25198
dirmngr: Rewrite the LDAP wrapper tool
* dirmngr/ldap-misc.c: New.
* dirmngr/ldap-misc.h: New.
* dirmngr/ks-engine-ldap.c: Include ldap-misc.h.
(ldap_err_to_gpg_err, ldap_to_gpg_err): Move to ldap-misc.c.
* dirmngr/ldap-wrapper.c (ldap_wrapper): Print list of args in debug
mode.
* dirmngr/server.c (lookup_cert_by_pattern): Handle GPG_ERR_NOT_FOUND
the saqme as GPG_ERR_NO_DATA.
* dirmngr/ldap.c (run_ldap_wrapper): Add args tls_mode and ntds.
Remove arg url.  Adjust for changes in dirmngr_ldap.
(url_fetch_ldap): Remove args host and port.  Parse the URL and use
these values to call run_ldap_wrapper.
(attr_fetch_ldap): Pass tls flags to run_ldap_wrapper.
(rfc2254_need_escape, rfc2254_escape): New.
(extfilt_need_escape, extfilt_escape): New.
(parse_one_pattern): Rename to ...
(make_one_filter): this.  Change for new dirmngr_ldap calling
convention.  Make issuer DN searching partly work.
(escape4url, make_url): Remove.
(start_cert_fetch_ldap): Change for new dirmngr_ldap calling
convention.
* dirmngr/dirmngr_ldap.c: Major rewrite.

* dirmngr/t-ldap-misc.c: New.
* dirmngr/t-support.h (DIM, DIMof): New.
* dirmngr/Makefile.am (dirmngr_ldap_SOURCES): Add ldap-misc.c
(module_tests) [USE_LDAP]: Add t-ldap-misc.
(t_ldap_parse_uri_SOURCES): Ditto.
(t_ldap_misc_SOURCES): New.
--

This rewrite allows to properly handle TLS and avoids some code
duplication.

Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit 39815c023f)
2021-06-16 12:58:32 +02:00
Werner Koch
bcb9931562
dirmngr: Remove useless code.
* dirmngr/ks-engine-ldap.c (my_ldap_connect): Remove the
password_param thing because we set the password directly without an
intermediate var.
--

Reported-by: Ingo Kloecker
(cherry picked from commit 8bd5172539)
2021-06-16 12:47:04 +02:00
Werner Koch
58e4c82512
dirmngr: Fix default port for our redefinition of ldaps.
* dirmngr/server.c (make_keyserver_item): Fix default port for ldaps.
Move a tmpstr out of the blocks.
* dirmngr/ks-engine-ldap.c (my_ldap_connect): Improve diagnostics.
--

Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit 8de9d54ac8)
2021-06-16 12:45:20 +02:00
Werner Koch
3e05f99e8d
dirmngr: Use --ldaptimeout for OpenPGP LDAP keyservers.
* dirmngr/ks-engine-ldap.c (my_ldap_connect): Use LDAP_OPT_TIMEOUT.

* dirmngr/dirmngr.c (main): Move --ldaptimeout setting to ...
(parse_rereadable_options): here.
--

Note that this has not yet been tested.  In fact a test with OpenLDAP
using a modified route got stuck in the connection attempt.  Maybe it
works on Windows - will be tested later.

Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit 317d5947b8)
2021-06-16 12:43:11 +02:00
Werner Koch
52cf32ce2f
dirmngr: New option --ldapserver
* dirmngr/dirmngr.c (opts): Add option --ldapserver.
(ldapserver_list_needs_reset): New var.
(parse_rereadable_options): Implement option.
(main): Ignore dirmngr_ldapservers.conf if no --ldapserver is used.

* dirmngr/server.c (cmd_ldapserver): Add option --clear and list
configured servers if none are given.
--

This option allows to specify LDAP keyserver in dirmngr instead of
using gpgsm.conf.

Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit ff17aee5d1)
2021-06-16 12:42:02 +02:00
Werner Koch
eb3a629154
dirmngr: Allow for non-URL specified ldap keyservers.
* dirmngr/server.c (cmd_ldapserver): Strip an optional prefix.
(make_keyserver_item): Handle non-URL ldap specs.
* dirmngr/dirmngr.h (struct ldap_server_s): Add fields starttls,
ldap_over_tls, and ntds.

* dirmngr/ldapserver.c (ldapserver_parse_one): Add for an empty host
string.  Improve error messages for the non-file case.  Support flags.
* dirmngr/ks-action.c (ks_action_help): Handle non-URL ldap specs.
(ks_action_search, ks_action_get, ks_action_put): Ditto.
* dirmngr/ks-engine-ldap.c: Include ldapserver.h.
(ks_ldap_help): Handle non-URL ldap specs.
(my_ldap_connect): Add args r_host and r_use_tls.  Rewrite to support
URLs and non-URL specified keyservers.
(ks_ldap_get): Adjust for changes in my_ldap_connect.
(ks_ldap_search): Ditto.
(ks_ldap_put): Ditto.
--

The idea here is to unify our use of URLS or colon delimited ldap
keyserver specification.  The requirement for percent escaping, for
example the bindname in an URLs, is cumbersome and prone to errors.
This we allow our classic colon delimited format as an alternative.
That format makes it also easy to specify flags to tell dirmngr
whether to use starttls or ldap-over-tls.  The code is nearly 100%
compatible to existing specification.  There is one ambiguity if the
hostname for CRL/X509 searches is just "ldap"; this can be solved by
prefixing it with "ldap:" (already implemented in gpgsm).

GnuPG-bug-id: 5405, 5452
Ported-from: 2b4cddf908
2021-06-16 12:25:13 +02:00
Werner Koch
1c96f4d663
dirmngr: Support pseudo URI scheme "opaque".
* dirmngr/http.h (HTTP_PARSE_NO_SCHEME_CHECK): New.
* dirmngr/http.c (http_parse_uri): Use this flag.  Change all callers
to use the new macro for better readability.
(do_parse_uri): Add pseudo scheme "opaque".
(uri_query_value): New.
--

This scheme can be used to convey arbitrary strings in a parsed_uri_t
object.

Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit 72124fadaf)
2021-06-16 11:54:47 +02:00
Jakub Jelen
25aa353bf8
dirmgr: Avoid double free
* dirmgr/http.c (http_prepare_redirect): Avoid double free
* dirmgr/ocsp.c (check_signature): Initialize pointer

--

Signed-off-by: Jakub Jelen <jjelen@redhat.com>
GnuPG-bug-id: 5393
2021-05-20 14:33:35 +02:00
Jakub Jelen
0d2c1e9046
dirmgr: clean up memory on error code paths
* dirmgr/crlcache.c (finish_sig_check): goto leave instead of return
* dirmgr/http.c (send_request): free authstr and proxy_authstr
* dirmgr/ldap.c (start_cert_fetch_ldap): free proxy
* dirmgr/ocsp.c (check_signature): release s_hash

--

Signed-off-by: Jakub Jelen <jjelen@redhat.com>
GnuPG-bug-id: 5393
2021-05-20 13:38:24 +02:00
Werner Koch
a660e10606
dirmngr: For KS_SEARCH return the fingerprint also with LDAP.
* dirmngr/ks-engine-ldap.c (extract_keys): Return the fingerprint if
available.
(ks_ldap_search): Ditto.
(extract_keys): Make sure to free the ldap values also in corner
cases.
(my_ldap_value_free): New.
(ks_ldap_get): Ditto.
(ks_ldap_search): Ditto.
(my_ldap_connect): Ditto.
--

For background see these comments from gpgme:

/* The output for external keylistings in GnuPG is different from all
   the other key listings.  We catch this here with a special
   preprocessor that reformats the colon handler lines.  */
/* The format is:

   pub:<keyid>:<algo>:<keylen>:<creationdate>:<expirationdate>:<flags>

   as defined in 5.2. Machine Readable Indexes of the OpenPGP
   HTTP Keyserver Protocol (draft).  Modern versions of the SKS
   keyserver return the fingerprint instead of the keyid.  We
   detect this here and use the v4 fingerprint format to convert
   it to a key id.

   We want:
   pub:o<flags>:<keylen>:<algo>:<keyid>:<creatdate>:<expdate>::::::::
*/

Regarding the freeing of values: I was not able to find a
specification stating it is okay to pass NULL to ldap_value_free, thus
the new wrapper.  Also add robustness measures in case ldap_get_value
returns an empty array.

GnuPG-bug-id: 5441
Signed-off-by: Werner Koch <wk@gnupg.org>
2021-05-19 18:13:37 +02:00
Werner Koch
1406f551f1
dirmngr: LDAP search by a mailbox now ignores revoked keys.
* dirmngr/ks-engine-ldap.c (keyspec_to_ldap_filter): Ignore revoked
and disable keys in mail mode.
--

The LDAP schema has a revoked and a disabled flag.  The former will be
set if a revoked key is uploaded; the latter can be set by other
means.   With this change a search by mailbox does not anymore return
keys with these LDAP attributes set.  This allows to better maintain a
directory with multiple keys per mailbox.

Doing the same for expired keys could also be done but requires more
effort.

Signed-off-by: Werner Koch <wk@gnupg.org>
2021-05-17 16:36:36 +02:00
Werner Koch
45918813f0
Support log-file option from common.conf for all daemon.
* agent/gpg-agent.c: Include comopt.h.
(main): Read log-file option from common.conf.
(reread_configuration): Ditto.
* dirmngr/dirmngr.c: Include comopt.h.
(main): Read log-file option from common.conf.
(reread_configuration): Ditto.
* kbx/keyboxd.c: Include comopt.h.
(main): Read log-file option from common.conf.
(reread_configuration): Ditto.
* scd/scdaemon.c: Include comopt.h.
(main): Read log-file option from common.conf.

Signed-off-by: Werner Koch <wk@gnupg.org>
2021-04-20 10:50:10 +02:00
Werner Koch
d7e707170f
gpg: Lookup a missing public key of the current card via LDAP.
* g10/getkey.c (get_seckey_default_or_card): Lookup a missing public
key from the current card via LDAP.
* g10/call-dirmngr.c: Include keyserver-intetnal.h.
(gpg_dirmngr_ks_get): Rename arg quick into flags.  Take care of the
new LDAP flag.
* g10/keyserver-internal.h (KEYSERVER_IMPORT_FLAG_QUICK): New.
Replace the use of the value 1 for the former quick arg.
(KEYSERVER_IMPORT_FLAG_LDAP): New.
* g10/keyserver.c (keyserver_get_chunk): Increase the reserved line
length.
* dirmngr/ks-action.c (ks_action_get): Add arg ldap_only.
* dirmngr/server.c (cmd_ks_get): Add option --ldap.
--

This change makes it easy to start working with gnupg: Just insert the
smartcard or token provided to you and the first time you sign a
message the public key associated with the current card will be
imported and everything is set without any configuration.

This works only with an LDAP directory because it can be expected that
the public key has been put into the LDAP during card personalization.
Of course an LDAP server needs to be configured; in a Windows AD
domain this can be a mere "keyserver ldap:///" in dirmngr.conf.  Other
configured keyservers are ignored.

Requirements for the card driver: The $SIGNKEYID attribute must exists
and a query for the KEY-FPR attribute needs to return the OpenPGP
fingerprint for that key.  This is currently supported for OpenPGP
cards and certain PKCS#15 cards.

Signed-off-by: Werner Koch <wk@gnupg.org>
2021-04-16 20:21:23 +02:00
Werner Koch
6c26e593df
gpg: Do not use self-sigs-only for LDAP keyserver imports.
* dirmngr/ks-engine-ldap.c (ks_ldap_get): Print a SOURCE status.
* g10/options.h (opts): New field expl_import_self_sigs_only.
* g10/import.c (parse_import_options): Set it.
* g10/keyserver.c (keyserver_get_chunk): Add special options for LDAP.
--

I can be assumed that configured LDAP servers are somehow curated and
not affected by rogue key signatures as the HKP servers are.  Thus we
can allow the import of key signature from LDAP keyservers by default.

GnuPG-bug-id: 5387
2021-04-13 14:33:50 +02:00
Werner Koch
683ff00bb1
w32: Silence a compiler warning in dirmngr.c
--
2021-03-15 09:50:31 +01:00
Werner Koch
ab7dc4b524
dirmngr: Support new gpgNtds parameter in LDAP keyserver URLs.
* dirmngr/ldap-parse-uri.c (ldap_parse_uri): Support a new gpgNtds
extension.
* dirmngr/ks-engine-ldap.c (my_ldap_connect): Do ldap_init always with
hostname - which is NULL and thus the same if not given.  Fix minor
error in error code handling.
--

Note that "gpgNtds" is per RFC-4512 case insensitive and has not yet
been officially regisetered.  Thus for correctness the OID can be
used:

  1.3.6.1.4.1.11591.2.5          LDAP URL extensions
  1.3.6.1.4.1.11591.2.5.1          gpgNtds=1 (auth. with current user)

Note that the value must be 1; all other values won't enable AD
authentication and are resevered for future use.

This has been cherry-picked from the 2.2 branch,
commit 55f46b33df

Signed-off-by: Werner Koch <wk@gnupg.org>
2021-02-17 17:40:02 +01:00
Werner Koch
9500432b7a
Require Libgcrypt 1.9
* configure.ac: Require at least Libgcrypt 1.9.0.  Remove all
GCRYPT_VERSION_NUMBER dependent code.
--

Only Libgcrypt 1.9 implements EAX which is a mandatory algorithm in
RFC4880bis.

Signed-off-by: Werner Koch <wk@gnupg.org>
2021-01-19 10:33:03 +01:00
Werner Koch
355e2992c0
dirmngr: Do not block threads in LDAP keyserver calls.
* dirmngr/ks-engine-ldap.c: Wrap some ldap calls.
--

The former gpgkeys_ldap module has once been ported to dirmngr but
unfortunately the dirmngr_ldap wrapper has not been used so that we
have internal LDAP calls with these problems:

- No usable timeouts.
- On non-Windows platforms a lot of extra libs and possibly even a
  second copy of Libgcrypt is pulled in.
- Only one threads runs at a time.

This patch mitigates the last point.

Signed-off-by: Werner Koch <wk@gnupg.org>
2020-12-18 11:57:14 +01:00
Werner Koch
4a3836e2b2
gpg: New AKL method "ntds"
* dirmngr/ks-engine-ldap.c (keyspec_to_ldap_filter): Change the new
support for KEYDB_SEARCH_MODE_MAIL.
(ks_ldap_get): Add a debug.
* g10/options.h (AKL_NTDS): New.
* g10/keyserver.c (keyserver_import_ntds): New.
(keyserver_get_chunk): Allow KEYDB_SEARCH_MODE_MAIL.
* g10/getkey.c (parse_auto_key_locate): Support "ntds".
(get_pubkey_byname): Ditto.
2020-12-17 18:25:34 +01:00
Werner Koch
1194e4f7e2
dirmngr: Support "ldap:///" for the current AD user.
* dirmngr/http.h (struct parsed_uri_s): Add field ad_current.
* dirmngr/ldap-parse-uri.c (ldap_parse_uri): Set it.
* dirmngr/ks-engine-ldap.c (my_ldap_connect): Take care of ad_current.
--

Ported from 2.2.

Signed-off-by: Werner Koch <wk@gnupg.org>
2020-12-17 18:25:11 +01:00
Werner Koch
2cadcce3e8
dirmngr: Allow LDAP searches via fingerprint.
* dirmngr/ks-engine-ldap.c (keyspec_to_ldap_filter): Add arg
serverinfo and allow searching by fingerprint.
(ks_ldap_get, ks_ldap_search): First connect then create teh filter.
--

With the new schema we can finally search by fingerprint.
2020-12-17 10:20:28 +01:00
Werner Koch
a2434ccabd
dirmngr: Store all version 2 schema attributes.
* g10/call-dirmngr.c (ks_put_inq_cb): Emit "fpr" records.
* dirmngr/ks-engine-ldap.c (extract_attributes): Add args
extract-state and schemav2.  Add data for the new schema version.
remove the legacy code to handle UIDs in the "pub" line.
(ks_ldap_put): Set new attributes for NTDS use the fingerprint as CN.

Signed-off-by: Werner Koch <wk@gnupg.org>
2020-12-15 13:36:19 +01:00
Werner Koch
e9ddd61fe9
dirmngr: Support the new Active Directory schema
* dirmngr/ks-engine-ldap.c (SERVERINFO_): New constants.
(my_ldap_connect): Relace args pgpkeyattrp and real_ldapp by a new
serverinfo arg.  Set the new info flags.
(ks_ldap_get): Adjust for change.
(ks_ldap_search): Ditto.
(ks_ldap_put): Ditto.  Replace xmalloc by xtrymalloc.  Change the DN
for use with NTDS (aka Active Directory).
* doc/ldap/gnupg-ldap-init.ldif (pgpSoftware): Update definition of
pgpVersion.
* doc/ldap/gnupg-ldap-ad-init.ldif: New.
* doc/ldap/gnupg-ldap-ad-schema.ldif: New.
--

This is a first take on better Active Directory support.  The main
change for NTDS in the code is that the an top-RDN of CN is used
instead of the old pgpCertID.  More changes to come; for example using
and storing the fingerprint.

Signed-off-by: Werner Koch <wk@gnupg.org>
2020-12-14 19:29:49 +01:00