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Commit Graph

464 Commits

Author SHA1 Message Date
Damien Goutte-Gattat
1ba308aa03
dirmngr: Do not follow https-to-http redirects.
* dirmngr/ks-engine-http.c (ks_http_fetch): Forbid redirects from
a https URI to a http URI.
--

GnuPG-bug-id: 3436
Signed-off-by: Damien Goutte-Gattat <dgouttegattat@incenp.org>
2017-10-19 15:32:38 +02:00
Werner Koch
df692a6167
dirmngr: Use system certs if --hkp-cacert is not used.
* dirmngr/certcache.c (any_cert_of_class): New var.
(put_cert): Set it.
(cert_cache_deinit): Clear it.
(cert_cache_any_in_class): New func.
* dirmngr/http-ntbtls.c (gnupg_http_tls_verify_cb): Add hack to
override empty list of HKP certs.
--

This patch carries the changes for GNUTLS from commit
7c1613d415 over to NTBTLS.  NTBTLS works
quite different and thus we need to do it this way.

Signed-off-by: Werner Koch <wk@gnupg.org>
2017-09-18 22:49:05 +02:00
Werner Koch
482fd5758c
dirmngr,w32: Fix http connection timeout problem.
* dirmngr/http.c (connect_with_timeout) [W32]: Take care of EAGAIN.
--

GnuPG-bug-id: 3319
Signed-off-by: Werner Koch <wk@gnupg.org>
2017-07-31 13:12:37 +02:00
Werner Koch
c5e5748480
dirmngr: Do not use a blocking connect in Tor mode.
* dirmngr/http.c (http_raw_connect): Disable the timeout in Tor mode.
(send_request): Ditto.

Signed-off-by: Werner Koch <wk@gnupg.org>
2017-07-26 13:48:27 +02:00
Werner Koch
fd68bdb61e
dirmngr: Auto-enable Tor on startup or reload.
* dirmngr/dirmngr.c (dirmngr_use_tor): Test for Tor availibility.
--

GnuPG-bug-id: 2935
Signed-off-by: Werner Koch <wk@gnupg.org>
2017-07-26 10:58:15 +02:00
Werner Koch
d50c2eff8d
agent,dirmngr: Check for homedir removal also using stat(2).
* agent/gpg-agent.c (have_homedir_inotify): New var.
(reliable_homedir_inotify): New var.
(main):  Set reliable_homedir_inotify.
(handle_tick): Call stat on the homedir.
(handle_connections): Mark availibility of the inotify watch.
* dirmngr/dirmngr.c (handle_tick): Call stat on the homedir.
(TIMERTICK_INTERVAL_SHUTDOWN): New.
(handle_connections): Depend tick interval on the shutdown state.
--

The stat call is used on systems which do not support inotify and also
when we assume that the inotify does not work reliable.

Signed-off-by: Werner Koch <wk@gnupg.org>
2017-07-26 10:27:36 +02:00
Werner Koch
0ef50340ef
w32: Also change the directory on daemon startup.
* agent/gpg-agent.c (main): Always to the chdir.
* dirmngr/dirmngr.c (main): Ditto.
* scd/scdaemon.c (main): Ditto.
--

Note that only dirmngr did not call the chdir with --no-detach.  thus
we kept it this way.

Tested gpg-agent by checking the properties shown by procexp.

Gnupg-bug-id: 2670
Signed-off-by: Werner Koch <wk@gnupg.org>
2017-07-25 13:04:18 +02:00
Werner Koch
226f143ca0
common: New functions gnupg_daemon_rootdir and gnupg_chdir.
* common/sysutils.c (gnupg_chdir): New.
* common/homedir.c (gnupg_daemon_rootdir): New.
* agent/gpg-agent.c (main): Use these functions instead chdir("/").
* dirmngr/dirmngr.c (main): Ditto.
* scd/scdaemon.c (main): Ditto.
--

Signed-off-by: Werner Koch <wk@gnupg.org>
2017-07-25 12:43:37 +02:00
Werner Koch
f2d2648a4d
Revert "w32: Change directory on daemon startup."
--
This reverts commit 78ebc62604.
Gnupg-bug-id: 2670
2017-07-25 12:19:08 +02:00
NIIBE Yutaka
d40b4a41a8 dirmngr: Add annotation for fallthrough.
* dirmngr/dns.c: Add /* FALL THROUGH */ to clarify.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2017-07-25 11:49:23 +09:00
Werner Koch
e975482239
dirmngr: Print a SOURCE status for WKD requests.
* dirmngr/server.c (cmd_wkd_get): Print a SOURCE status.
--

This status allows to see whether the the WKD requests has been
resolved from the standard address or from a SRV record derived one.
We return only host and port and not the .well-known suffix because
that is obvious.  HTTP redirects are not taken in account because they
may chnage at any time due to load balancing etc and not relevant for
gpg which may use the URL to detect changes in the WKD results.

For example my current setup returns

    S SOURCE https://wkd.gnupg.org

for wk@gnupg.org.  Without a SRV record

    S SOURCE https://gnupg.org

would have been returned.

Signed-off-by: Werner Koch <wk@gnupg.org>
2017-07-24 20:09:52 +02:00
Werner Koch
9b88cfa096
dirmngr: New function dirmngr_status_printf.
* dirmngr/server.c (dirmngr_status_printf): New.

Signed-off-by: Werner Koch <wk@gnupg.org>
2017-07-24 20:09:52 +02:00
Marcus Brinkmann
78ebc62604 w32: Change directory on daemon startup.
* agent/gpg-agent.c [HAVE_W32_SYSTEM]: Include <direct.h>.
(main) [HAVE_W32_SYSTEM]: Change working directory to \.
* dirmngr/dirmngr.c [HAVE_W32_SYSTEM]: Include <direct.h>.
(main) [HAVE_W32_SYSTEM]: Change working directory to \.
* scd/scdaemon.c [HAVE_W32_SYSTEM]: Include <direct.h>.
(main) [HAVE_W32_SYSTEM]: Change working directory to \.

Signed-off-by: Marcus Brinkmann <mb@g10code.com>
GnuPG-bug-id: 2670
2017-07-24 16:31:55 +02:00
NIIBE Yutaka
ade4b2744c dirmngr: More minor fix.
* dirmngr/http.c (send_request): Care the case of !USE_TLS.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2017-07-24 16:09:11 +09:00
NIIBE Yutaka
789401e955 dirmngr: More minor fixes.
* dirmngr/http.c (http_verify_server_credentials): Duplicated const.
* dirmngr/ldap.c (parse_one_pattern): Add comment.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2017-07-24 15:35:34 +09:00
NIIBE Yutaka
274602820c dirmngr: Minor fix for Windows.
* dirmngr/http.c (connect_with_timeout): Use FD2INT.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2017-07-24 15:30:56 +09:00
NIIBE Yutaka
cc12cf386b dnsmngr: Fix use of CPP.
* dirmngr/dns.c (HAVE_STATIC_ASSERT, HAVE___ATOMIC_FETCH_ADD)
(DNS_HAVE_SOCKADDR_UN, HAVE_SOCK_NONBLOCK): Don't use defined
to be expanded for expression evaluation.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2017-07-20 13:19:18 +09:00
Justus Winter
e7fc6e3bf0
dirmngr: Forbid redirects from .onion to clearnet URIs.
* dirmngr/ks-engine-hkp.c (send_request): Forbid redirects from .onion
to clearnet URIs.
* dirmngr/ks-engine-http.c (ks_http_fetch): Likewise.
--
This protects users from misconfigured .onion services.

GnuPG-bug-id: 3087
Signed-off-by: Justus Winter <justus@g10code.com>
2017-07-19 17:02:25 +02:00
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: 3419a339d9
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: b5f356e9fb
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