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446 Commits

Author SHA1 Message Date
Justus Winter
da91d2106a
dirmngr: Implement TLS over http proxies.
* dirmngr/http.c (send_request): If a http proxy is to be used, and we
want to use TLS, try to use the CONNECT method to get a connection to
the target server.

GnuPG-bug-id: 2940
Signed-off-by: Justus Winter <justus@g10code.com>
2017-07-19 12:14:30 +02:00
Justus Winter
e7eabe66b6
dirmngr: Log http response in debug mode.
* dirmngr/http.c (parse_response): Log http response in debug mode.

Signed-off-by: Justus Winter <justus@g10code.com>
2017-07-19 12:14:28 +02:00
Justus Winter
1ba220e681
dirmngr: Amend TLS handling.
* dirmngr/http.c (http_wait_response): Get the 'use_tls' flag from the
write cookie, not from the URI.

Signed-off-by: Justus Winter <justus@g10code.com>
2017-07-19 12:14:27 +02:00
Justus Winter
46a4a0c0e7
dirmngr: Fix connecting to http proxies.
* dirmngr/http.c (send_request): Do not use the 'srvtag' intended for
the target host to connect to the http proxy.

Signed-off-by: Justus Winter <justus@g10code.com>
2017-07-19 12:14:25 +02:00
Justus Winter
73d4781e45
dirmngr: Fix handling of proxy URIs.
* dirmngr/http.c (send_request): We do not support socks4.

Signed-off-by: Justus Winter <justus@g10code.com>
2017-07-19 11:18:39 +02:00
NIIBE Yutaka
fa63db89f9 Fix usage of ARGPARSE_OPTS.
* agent/gpg-agent.c, agent/preset-passphrase.c,
dirmngr/dirmngr-client.c, dirmngr/dirmngr_ldap.c, kbx/kbxutil.c,
tools/gpg-check-pattern.c, tools/gpgconf.c, tools/gpgsplit.c,
tools/symcryptrun.c: Use ARGPARSE_end.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2017-07-19 13:41:18 +09:00
Justus Winter
b231959728
dirmngr: Honor http keyserver URLs.
* dirmngr/http.c (parse_uri): Keep an unmodified copy of the URI.
* dirmngr/http.h (struct parsed_uri_s): New field 'original'.
* dirmngr/ks-action.c (ks_action_get): Properly handle http and https
URLs.
--

If a key has a http or https URL as preferred keyserver, fetch the key
from there.  Previously, dirmngr unconditionally interpreted these
URLs as hkp servers.

GnuPG-bug-id: 2924
Signed-off-by: Justus Winter <justus@g10code.com>
2017-07-18 13:56:33 +02:00
Justus Winter
ebb35ed711
dirmngr: Fix memory leak.
* dirmngr/http.c (parse_uri): Properly free partial results.

Signed-off-by: Justus Winter <justus@g10code.com>
2017-07-18 13:49:24 +02:00
Justus Winter
3d670fa973
dirmngr: Fix memory leak.
* dirmngr/http.c (http_release_parsed_uri): Free 'params'.

Signed-off-by: Justus Winter <justus@g10code.com>
2017-07-18 13:49:22 +02:00
Werner Koch
957f8ebc89
dirmngr: Fix license note in server.c
--

This double license note was accidentally added while only wanting to
add another copyright line.

Fixes-commit: 3419a339d9c4e800bf30e9021e05982d8c1021c1
Signed-off-by: Werner Koch <wk@gnupg.org>
2017-07-12 12:37:16 +02:00
Werner Koch
815ecdf08a
build: Add missing LIBASSUAN_CFLAGS to dirmngr/.
* dirmngr/Makefile.am (t_http_CFLAGS): Add LIBASSUAN_CFLAGS.
(t_ldap_parse_uri_CFLAGS): Ditto.
(t_dns_stuff_CFLAGS): Ditto.
--

GnuPG-bug-id: 2424
Signed-off-by: Werner Koch <wk@gnupg.org>
2017-06-23 12:01:20 +02:00
Justus Winter
48aae8167d
dirmngr: Properly handle SRV records.
* dirmngr/ks-engine-hkp.c (enum ks_protocol): New type.
(struct hostinfo_s): New flags indicating whether we already did a
A lookup, or a SRV lookup per protocol.  Turn 'port' into an array.
(create_new_hostinfo): Initialize new fields.
(add_host): Update the port for the given protocol.
(map_host): Simplify hosttable lookup misses.  Check the SRV records
for both protocols on demand, do the A lookup just once.  Return the
correct port.
--

Previously, if a host had both a SRV record for hkp and hkps, the
wrong port was used for the protocol that was used second, because the
hostinfo did not store a port per protocol, and the hosttable does not
discriminate between hosts using the protocol.

Fix this by querying the SRV records on demand, storing a port per
protocol, and returning the right port.

GnuPG-bug-id: 3033
Signed-off-by: Justus Winter <justus@g10code.com>
2017-06-20 16:38:54 +02:00
Justus Winter
fc4834d213
dirmngr: Refactor variable-sized array code.
* dirmngr/ks-engine-hkp.c (struct hostinfo_s): Add explicit length and
size fields.
(MAX_POOL_SIZE): New macro.
(create_new_hostinfo): Initialize new fields.
(host_in_pool_p): Adapt.
(select_random_host): Likewise.
(add_host): Likewise.  Move the resizing logic here.
(hostinfo_sort_pool): New function.
(map_host): Simplify.  Move the resizing logic away from here.
(ks_hkp_mark_host): Adapt.
(ks_hkp_print_hosttable): Likewise.
--

The current code assumes that the pool array is only filled when the
hostinfo object is created.  This patch removes that limitation.

GnuPG-bug-id: 3033
Signed-off-by: Justus Winter <justus@g10code.com>
2017-06-20 16:37:11 +02:00
Justus Winter
794261c4bd
dirmngr: Fix typo.
--
Signed-off-by: Justus Winter <justus@g10code.com>
2017-06-20 13:34:12 +02:00
Werner Koch
3419a339d9
Change license of some files to LGPLv2.1.
* COPYING.LIB: Rename to COPYING.LGPL3.
* COPYING.LGPL21: New.
* COPYING.GPL2: New.
* Makefile.am: Distribute them.
* AUTHORS: Update license pointers.  Add BSI as copyright holder.
* common/compliance.c, common/compliance.h: Add BSI copyright notice.
Break overlong lines.
* dirmngr/loadswdb.c: Add BSI copyright notices.
* dirmngr/server.c: Ditto.
* tools/call-dirmngr.c: Change license to LGPLv2.1.  Add BSI
copyright notice.
* tools/call-dirmngr.h: Ditto.
* tools/gpg-wks-client.c: Ditto.
* tools/gpg-wks-server.c: Ditto.
* tools/gpg-wks.h: Ditto.
* tools/mime-maker.c: Ditto.
* tools/mime-maker.h: Ditto.
* tools/mime-parser.c: Ditto.
* tools/mime-parser.h: Ditto.
* tools/send-mail.c: Ditto.
* tools/send-mail.h: Ditto.
* tools/wks-receive.c: Ditto.
* tools/wks-util.c: Ditto.
* tools/rfc822parse.c, tools/rfc822parse.h: Change license to LGPLv2.1.
--

For better deployment it seems to be better to make the Web Key
Directory code more easily available.

Some code was been developed under contract of the BSI.

Signed-off-by: Werner Koch <wk@gnupg.org>
2017-06-19 12:42:13 +02:00
Justus Winter
15d2a00993
dirmngr: Implement querying nameservers over IPv6.
* dirmngr/dns.c (dns_so_check): Reinitialize sockets on address family
mismatch.
(enum dns_res_state): New states for querying over IPv6.
(dns_res_exec): Implement the new states by copying and modifying the
IPv4 variants.  Branch to their respective counterparts if the current
list of resolvers using the current address family is exhausted.
--

This allows dirmngr to resolve names on systems where the nameservers
are only reachable via IPv6.

GnuPG-bug-id: 2990
Signed-off-by: Justus Winter <justus@g10code.com>
2017-06-13 11:33:06 +02:00
Werner Koch
9b43220b8a
dirmngr: Implement HTTP connect timeouts of 15 or 2 seconds.
* dirmngr/dirmngr.c (oConnectTimeout, oConnectQuickTimeout): New
enums.
(opts): New options --connect-timeout and --connect-quick-timeout.
(DEFAULT_CONNECT_TIMEOUT): New.
(DEFAULT_CONNECT_QUICK_TIMEOUT): New.
(parse_rereadable_options): Handle new options.
(post_option_parsing): New.  Use instead of direct calls to
set_debug() and set_tor_mode ().
(main): Setup default timeouts.
(dirmngr_init_default_ctrl): Set standard connect timeout.
* dirmngr/dirmngr.h (opt): New fields connect_timeout and
connect_quick_timeout.
(server_control_s): New field timeout.
* dirmngr/ks-engine-finger.c (ks_finger_fetch): Pass timeout to
http_raw_connect.
* dirmngr/ks-engine-hkp.c (send_request): Call
http_session_set_timeout.
* dirmngr/ks-engine-http.c (ks_http_fetch): Ditto.
* dirmngr/server.c (cmd_wkd_get, cmd_ks_search, cmd_ks_get)
(cmd_ks_fetch): Implement --quick option.
--

The standard connect timeouts are way to long so we add a timeout to
the connect calls.  Also implement the --quick option which is already
used by gpg for non-important requests (e.g. looking up a key for
verification).

Signed-off-by: Werner Koch <wk@gnupg.org>
2017-06-08 09:37:36 +02:00
Werner Koch
5b9025cfa1
dirmngr: Allow a timeout for HTTP and other TCP connects.
* dirmngr/http.c: Include fcntl.h.
(http_session_s): Add field 'connect_timeout'.
(http_session_new): Clear that.
(http_session_set_timeout): New function.
(my_wsagetlasterror) [W32]: New.
(connect_with_timeout): New function.
(connect_server): Add arg 'timeout' and call connect_with_timeout.
(send_request): Add arg 'timeout' and pass it to connect_server.
(http_raw_connect): Add arg 'timeout'.
(http_open): Pass TIMEOUT from the session to connect_server.
--

Note that the non-blocking connect we implement is traditional a
pretty non-portable thing due to slighly different semantics.  The
code uses the strategy W. Richard Stevens suggested in 1998.
Hopefully current OS versions got it all right.

The code has not been tested on Windows.

Signed-off-by: Werner Koch <wk@gnupg.org>
2017-06-08 09:37:36 +02:00
Werner Koch
de3a0988ef
dirmngr: This towel should better detect a changed resolv.conf.
* dirmngr/dns-stuff.c (resolv_conf_changed_p): Fix initialization time
issue.
--

Fixes-commit: b5f356e9fba2d99909f8f54d7b7e6836bed87b68
Signed-off-by: Werner Koch <wk@gnupg.org>
2017-05-25 20:26:54 +02:00
Werner Koch
b5f356e9fb
dirmngr: Re-init libdns resolver on towel change of resolv.conf
* dirmngr/dns-stuff.c: Include sys/stat.h.
(RESOLV_CONF_NAME): New macro to replace a string.
(resolv_conf_changed_p): New.
(libdns_init): Call new function
(libdns_res_open): Ditto.
--

Don't panic.  This is a simple change
Suggested-by: Stefan Bühler <stbuehler@web.de>
to avoid complicated if-up.d hooks to reload resolv.conf.

Signed-off-by: Werner Koch <wk@gnupg.org>
2017-05-25 11:37:21 +02:00
Andre Heinecke
abe3a9043f
dirmngr,w32: Fix ldap crl read on windows
Summary:
* dirmngr/ldap-wrapper-ce.c (outstream_cookie_s): Add buffer_read_pos.
(buffer_get_data): Use seperate read pos.

--
Using a single buffer pos for reading and writing caused the read
to return 0 as it read from the end of the buffer. Now we use
a seperate reader position.

Differential: D427

Signed-off-by: Andre Heinecke <aheinecke@intevation.de>
2017-05-15 12:49:39 +02:00
NIIBE Yutaka
0ce94a9698 g10, sm, dirmngr, common: Add comment for fall through.
* common/b64dec.c (b64dec_proc): Comment to clarify.
* dirmngr/cdblib.c (cdb_make_put): Use same pattern to clarify.
* dirmngr/dirmngr-client.c (read_pem_certificate): Likewise.
* dirmngr/ks-engine-hkp.c (ks_hkp_get): Likewise.
* g10/armor.c (unarmor_pump): Likewise.
* g10/gpg.c (main): Likewise.
* g10/import.c (read_block): Likewise.
* g10/keygen.c (make_backsig): Likewise.
* g10/pkclist.c (check_signatures_trust):  Likewise.
* sm/gpgsm.c (main): Likewise.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2017-05-10 11:13:12 +09:00
NIIBE Yutaka
5c8fe54809 Spelling fixes in docs and comments.
--

In addition, fix trailing spaces in tests/inittests.

GnuPG-bug-id: 3121
Reported-by: ka7 (klemens)
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2017-04-28 10:06:33 +09:00
NIIBE Yutaka
247932f367 dirmngr: Fix aliasing problem in dns.c.
* dirmngr/dns.c (dns_ai_setent): Care about aliasing.

--

Co-authored-by: Tomas Mraz
GnuPG-bug-id: 3105
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2017-04-25 21:00:41 +09:00
NIIBE Yutaka
4b2581dc0e dirmngr: Fix final close of LISTEN_FD.
* dirmngr/dirmngr.c (handle_connections): Close LISTEN_FD.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2017-04-18 09:04:11 +09:00
NIIBE Yutaka
0d0a7efa8f dirmngr: Fix API difference for Windows.
* dirmngr/http.c (read_server, write_server): Use assuan_fd_t.
(http_wait_response): Use FD2INT to get unsigned integer fd.
(read_server, write_server): Likewise.
(simple_cookie_read, simple_cookie_write): Use assuan_fd_t.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2017-04-18 09:03:14 +09:00
NIIBE Yutaka
adb77d095b dirmngr: More fix for test program.
* dirmngr/t-http.c (main): Care about no TLS.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2017-04-14 09:18:41 +09:00
NIIBE Yutaka
4771bad610 dirmngr: More fix for Windows.
* dirmngr/http.c (simple_cookie_read, simple_cookie_write): Only
valid with HTTP_USE_NTBTLS.
(_my_socket_new): Simply cast to int since it's for debug.
(_my_socket_ref, _my_socket_unref): Likewise.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2017-04-14 08:32:49 +09:00
NIIBE Yutaka
86dcb03134 dirmngr: Fix http.c for sockaddr_storage.
dirmngr/http.c (use_socks): Use sockaddr_storage.
(my_sock_new_for_addr, connect_server): Likewise.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2017-04-13 14:46:57 +09:00
NIIBE Yutaka
892b33bb2c dirmngr: Fix alignment of ADDR.
* dirmngr/dns-stuff.h (dns_addrinfo_s): Use struct sockaddr_storage
for size and alignment.
* dirmngr/dns-stuff.c (resolve_name_libdns): Follow the change.
(resolve_dns_name): Use struct sockaddr_storage.
(resolve_addr_standard, resolve_dns_addr): Likewise.
(resolve_dns_addr): Likewise.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2017-04-13 14:33:33 +09:00
NIIBE Yutaka
37018adce6 dirmngr: Fix thread key type.
* dirmngr/dirmngr.c (my_tlskey_current_fd): Use npth_key_t.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2017-04-13 13:06:38 +09:00
NIIBE Yutaka
5af104b541 dirmngr: More fix for Windows.
* dirmngr/dns.c (socket_fd_t, STDCALL): New.
(dns_te_initname): Use.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2017-04-13 09:52:19 +09:00
NIIBE Yutaka
6755b3b505 dirmngr: Fix type of sock.
* dirmngr/http.c (send_request): Use assuan_fd_t for SOCK.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2017-04-12 20:50:50 +09:00
NIIBE Yutaka
7ae1857c90 dirmngr: Fix possible null reference.
* dirmngr/dns.c (dns_error_t dns_trace_fput): Check NULL.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2017-04-12 15:58:11 +09:00
NIIBE Yutaka
60d9a9e6b4 dirmngr: Fix plus1_ns.
* dirmngr/dns.c (plus1_ns): Fix the initial implementation.

--

Fixes-commit: 64904ce627b6b0661acf15b5b70103c4842bb0f3
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2017-04-12 11:44:10 +09:00
NIIBE Yutaka
bd0c94939f dirmngr: Fix dns-stuff.c in another way.
* dirmngr/dns-stuff.c (T_CERT): Define our own.

--

T_CERT may be defined by another enum type even if the value is same.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2017-04-12 10:22:03 +09:00
NIIBE Yutaka
0b904ddea8 Revert "dirmngr: Fix dns-stuff.c."
This reverts commit 1538523156be568046f632d1775eae30ea8bd556.
2017-04-12 10:00:37 +09:00
NIIBE Yutaka
1538523156 dirmngr: Fix dns-stuff.c.
* dirmngr/dns-stuff.c: Don't include arpa/nameser.h.

--

It is not needed at all.  T_CERT may be defined by different type of
ns_type.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2017-04-12 09:48:27 +09:00
NIIBE Yutaka
64904ce627 dirmngr: Use a function to increment network short.
* dirmngr/dns.c (plus1_ns): New.
(dns_p_push): Use it.

--

On OpenBSD, htons and ntohs are expanded to GCC's statement
expressions where local variable is allowed.  Consecutive use
of htons and ntohs causes problem of variable name.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2017-04-12 09:11:20 +09:00
NIIBE Yutaka
3133402241 dirmngr: Fix build for Windows.
* dirmngr/ldap-wrapper-ce.c (outstream_cookie_writer): Use
gpgrt_ssize_t.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2017-04-11 16:12:34 +09:00
Werner Koch
3533b85440
dirmngr: New option --disable-ipv6
* dirmngr/dirmngr.h (struct opt): Add field 'disable_ipv6'.
* dirmngr/dirmngr.c (oDisableIPv6): New const.
(opts): New option --disable-ipv6.
(parse_rereadable_options): Set that option.
* dirmngr/dns-stuff.c (opt_disable_ipv6): New var.
(set_dns_disable_ipv6): New.
(resolve_name_standard): Make use of it.
* dirmngr/ks-engine-finger.c (ks_finger_fetch): Take care of
OPT.DISABLE_IPV6.
* dirmngr/ks-engine-hkp.c (map_host): Ditto.
(send_request): Ditto.
* dirmngr/ks-engine-http.c (ks_http_fetch): Ditto.
* dirmngr/ocsp.c (do_ocsp_request): Ditto.

Signed-off-by: Werner Koch <wk@gnupg.org>
2017-04-03 20:56:12 +02:00
Werner Koch
fce36d7ec8
dirmngr,w32: Silence the 'certificate already cached' message.
* dirmngr/certcache.c (load_certs_from_w32_store): Silenece an info
message.

Signed-off-by: Werner Koch <wk@gnupg.org>
2017-04-03 20:34:21 +02:00
Werner Koch
cc32ddbcba
dirmngr: Handle EIO which is sometimes returned by cookie functions.
* dirmngr/ks-engine-hkp.c (handle_send_request_error): Handle EIO.
--

Suggested-by: Andre Heinecke
Signed-off-by: Werner Koch <wk@gnupg.org>
2017-04-03 20:23:18 +02:00
Werner Koch
35c843c815
dirmngr: Always print a warning for a missing /etc/hosts.
* dirmngr/dns-stuff.c (libdns_init): No Windows specific handling of a
missing /etc/hosts.
--

My last comment on this was flawed.  Windows seems to always have its
version of /etc/hosts.  Only the en passant fixed bad escaping led me
assume that this was the case.  Thanks to Andre for complaining about
my comment remark.

Signed-off-by: Werner Koch <wk@gnupg.org>
2017-04-03 20:20:49 +02:00
Werner Koch
5d873f288e
dirmngr: Do not assume that /etc/hosts exists.
* dirmngr/dns-stuff.c (libdns_init): Do not bail out.
--

A standard Windows installation does not have a hosts file and thus we
can't bail out here.  We should also not bail out on a Unix system
because /etc/hosts is just one method in  nsswitch.conf.

Fixes-commit: 88f1505f0613894d5544290a170119eb538921e5
Signed-off-by: Werner Koch <wk@gnupg.org>
2017-04-03 20:06:57 +02:00
Justus Winter
483c1288a8
dirmngr: Fix error handling.
* dirmngr/dns-stuff.c (libdns_init): Convert error before printing it.

Signed-off-by: Justus Winter <justus@g10code.com>
2017-03-21 14:22:13 +01:00
Justus Winter
88f1505f06
dirmngr: Load the hosts file into libdns.
* dirmngr/dns-stuff.c (libdns_init): Actually load the hosts file into
libdns.
--

Previously, connecting to key servers specified in /etc/hosts was not
possible because libdns' hosts structure was initialized, but not
filled with the content of the hosts file.

GnuPG-bug-id: 2977
Signed-off-by: Justus Winter <justus@g10code.com>
2017-03-21 14:18:25 +01:00
Werner Koch
69c521df42
dirmngr: Ignore warning alerts in the GNUTLS handshake.
* dirmngr/http.c (send_request) [GNUTLS]: Don't bail out on warning
alerts.
--

GnuPG-bug-id: 2833
Signed-off-by: Werner Koch <wk@gnupg.org>
2017-03-17 12:50:35 +01:00
NIIBE Yutaka
70aca95d68 Remove -I option to common.
* dirmngr/Makefile.am (AM_CPPFLAGS): Remove -I$(top_srcdir)/common.
* g10/Makefile.am (AM_CPPFLAGS): Ditto.
* g13/Makefile.am (AM_CPPFLAGS): Ditto.
* kbx/Makefile.am (AM_CPPFLAGS): Ditto.
* scd/Makefile.am (AM_CPPFLAGS): Ditto.
* sm/Makefile.am (AM_CPPFLAGS): Ditto.
* tools/Makefile.am (AM_CPPFLAGS): Ditto.
* Throughout: Follow the change.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2017-03-07 20:25:54 +09:00
Werner Koch
8f0bf644bc
doc: Replace README.maint content.
--
2017-03-07 10:34:08 +01:00