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37 Commits

Author SHA1 Message Date
Werner Koch
a0dead5edc
dirmngr: Add http proxy support for keyservers.
* dirmngr/dirmngr.h (server_control_s): Add field http_proxy.
* dirmngr/dirmngr.c (dirmngr_init_default_ctrl): Copy http_proxy value
from OPT.
(dirmngr_deinit_default_ctrl): New.
(main): Call dirmngr_deinit_default_ctrl.
* dirmngr/server.c (start_command_handler): Ditto.
(option_handler): Add option "http-proxy".
* dirmngr/crlfetch.c (crl_fetch): Take http_proxy from CTRL.
* dirmngr/ocsp.c (do_ocsp_request): Ditto.
* dirmngr/ks-engine-hkp.c (send_request): Add proxy support.
* dirmngr/ks-engine-http.c (ks_http_fetch): Ditto.

Signed-off-by: Werner Koch <wk@gnupg.org>
2015-04-21 17:15:34 +02:00
Neal H. Walfield
7a56b6b3aa Improve documentation for ks_hkp_get.
* dirmngr/ks-engine-hkp.c (ks_hkp_get): Improvement documentation.

--
Signed-off-by: Neal H. Walfield <neal@g10code.de>
2015-03-23 19:58:31 +01:00
Neal H. Walfield
096f4186c8 Improve spelling and grammar of some comments.
--
Signed-off-by: Neal H. Walfield <neal@g10code.de>
2015-03-23 19:58:30 +01:00
Neal H. Walfield
63552852bf Move armor_data to misc.c.
* dirmngr/ks-engine-hkp.c (armor_data): Move function from here...
* dirmngr/misc.c (armor_data): ... to here and drop static qualifier.
* dirmngr/misc.h: New declaration.

--
Signed-off-by: Neal H. Walfield <neal@g10code.de>
2015-03-23 19:58:27 +01:00
Werner Koch
dc10d466bf
hkps: Fix host name verification when using pools.
* common/http.c (send_request): Set the requested for SNI.
* dirmngr/ks-engine-hkp.c (map_host): Return the poolname and not
the selecting a host.
--

GnuPG-bug-id: 1792

Thanks to davidw for figuring out the problem.

Signed-off-by: Werner Koch <wk@gnupg.org>
2015-03-19 15:37:05 +01:00
NIIBE Yutaka
657a26f3af dirmngr: Fix error code path of map_host.
* dirmngr/ks-engine-hkp.c (map_host): Fix error return.

--

In ks-engine-hkp.c on line 509 'reftbl' is freed, but it is then
used on line 511. I'm guessing this is a missing return;.

Reported-by: Joshua Rogers <honey@internot.info>

Debian-Bug-Id: 773520

Other fixes on error added too.
2015-01-08 12:14:13 +09:00
Werner Koch
5a556e4e88 dirmngr: Fix memory leak.
* dirmngr/server.c (cmd_ks_search, cmd_ks_get): Fix memory leak.

* dirmngr/ks-engine-hkp.c (ks_hkp_mark_host): Remove double check.
--

Reported-by: Joshua Rogers <git@internot.info>
Signed-off-by: Werner Koch <wk@gnupg.org>
2014-12-22 12:39:14 +01:00
Werner Koch
e8c0ed7795 dirmngr: Improve dead host detection.
* dirmngr/ks-engine-hkp.c (handle_send_request_error): Mark host dead
also for 2 other error messages.
2014-12-08 17:13:11 +01:00
Werner Koch
b72ece6d74 dirmngr: Return a proper error for all dead hosts.
* dirmngr/ks-engine-hkp.c (map_host): Change to return an gpg_error_t.
Return an error code for all dead hosts.
(make_host_part): Change to return an gpg_error_t.  Change all
callers.
--

The functions used to return an error code via ERRNO.  However, this
does not allow to return extra error codes in a portable way.  Thus we
change the function to directly return a gpg_error_t.

Signed-off-by: Werner Koch <wk@gnupg.org>
2014-12-08 11:15:26 +01:00
Kristian Fiskerstrand
68a7ccc0c8 dirmngr: Only report hkps scheme when available
* dirmngr/ks-engine-hkp.c (ks_hkp_help): Make use of TLS macros.

--
Only report support for the hkps scheme when GnuPG / dirmngr
has been built with a TLS library.

This helps debuging and enable the user to detect whether support
for hkps is included by doing a
`gpg-connect-agent --dirmngr 'keyserver --help' /bye`.
Currently hkps will be listed as a supported scheme but trying to
add a keyserver using it will silently fail.

As a digression, https is never listed as a valid scheme.
2014-11-26 10:25:20 +01:00
Werner Koch
84419f42da dirmngr: Support https for KS_FETCH.
* dirmngr/ks-engine-hkp.c (cert_log_cb): Move to ...
* dirmngr/misc.c (cert_log_cb): here.
* dirmngr/ks-engine-http.c (ks_http_fetch): Support 307-redirection
and https.
--

Note that this requires that the root certificates are registered using
the --hkp-cacert option.  Eventually we may introduce a separate
option to allow using different CAs for KS_FETCH and keyserver based
requests.
2014-09-10 10:37:48 +02:00
Werner Koch
141d69cb2a w32: Fix build problem with dirmngr.
* dirmngr/ks-engine-hkp.c (EAI_SYSTEM) [W32]: Add replacement
constant.
2014-06-10 15:11:32 +02:00
Werner Koch
9e1c99f800 dirmngr: Print certificates on failed TLS verification.
* dirmngr/ks-engine-hkp.c (cert_log_cb): New.
(send_request): Set callback.
--

We use the KSBA functions here because we have them anyway in Dirmngr.
2014-05-19 09:48:42 +02:00
Werner Koch
d2d9d4fb60 keyserver: Improve support for hkps pools.
* dirmngr/ks-engine-hkp.c (hostinfo_s): Add fields cname, v4addr, and
v6addr.
(create_new_hostinfo): Clear them.
(my_getnameinfo): Add args numeric and r_isnumeric.
(is_ip_address): New.
(map_host): Add arg r_host.  Rewrite the code to handle pools in a
special way.
(ks_hkp_print_hosttable): Change format of help info output.
(make_host_part): Add arg optional r_httphost.
(send_request): Add arg httphost.
(ks_hkp_search, ks_hkp_get, ks_hkp_put): Get httphost and pass it to
send_request.
--

This changes quite some things on how the hostinfo is maintained.
However, it might be better to rework the data structures and have one
entry per IP address instead of this clumsy patch.
2014-05-16 21:15:40 +02:00
Werner Koch
8b90d79818 http: Allow overriding of the Host header.
* common/http.c (http_open): Add arg httphost.
(http_open_document): Pass NULL for httphost.
(send_request): Add arg httphost.  If given, use HTTPHOST instead of
SERVER.  Use https with a proxy if requested.
(http_verify_server_credentials): Do not stop at the first error
message.
* dirmngr/ocsp.c (do_ocsp_request): Adjust call to http_open.
* keyserver/curl-shim.c (curl_easy_perform): Ditto.
* dirmngr/ks-engine-http.c (ks_http_fetch): Ditto.
* dirmngr/ks-engine-hkp.c (ks_hkp_help): Ditto.
2014-05-16 21:01:08 +02:00
Werner Koch
6477e51919 Use "samethread" mode keyword for some es_fopenmem.
* dirmngr/ks-engine-hkp.c (armor_data): Add mode keyword.
* g10/call-dirmngr.c (ks_put_inq_cb): Ditto.
* scd/atr.c (atr_dump): Ditto.
2014-05-06 09:49:26 +02:00
Werner Koch
60e2fc7d38 dirmngr: Add support for hkps keyservers.
* dirmngr/dirmngr.c: Include gnutls.h.
(opts): Add --gnutls-debug and --hkp-cacert.
(opt_gnutls_debug, my_gnutls_log): New.
(set_debug): Set gnutls log level.
(parse_rereadable_options): Register a CA file.
(main): Init GNUTLS.
* dirmngr/ks-engine-hkp.c (ks_hkp_help): Support hkps.
(send_request): Ditto.
2014-05-05 16:23:37 +02:00
Werner Koch
6c058fac65 dirmngr: Resurrect hosts in the HKP hosttable.
* dirmngr/dirmngr.c (HOUSEKEEPING_INTERVAL): New.
(housekeeping_thread): New.
(handle_tick): Call new function.
* dirmngr/ks-engine-hkp.c (RESURRECT_INTERVAL): New.
(struct hostinfo_s): Add field died_at and set it along with the dead
flag.
(ks_hkp_print_hosttable): Print that info.
(ks_hkp_housekeeping): New.
--

The resurrection gives the host a chance to get back to life the next
time a new host is selected.
2014-03-18 11:07:05 +01:00
Werner Koch
1e2e39c575 gpg: Make --auto-key-locate work again with keyservers.
* dirmngr/ks-engine-hkp.c (ks_hkp_get): Allow exact search mode.
* g10/keyserver.c (keyserver_import_name): Implement.
(keyserver_get): Use exact mode for name based import.
(keyserver_get): Add args R_FPR and R_FPRLEN.  Change all callers.
2014-03-17 15:39:33 +01:00
Werner Koch
59b4fb5f49 dirmngr: Make use of IPv4 and IPV6 more explicit.
* common/http.c (connect_server): Handle the new flags.
* common/http.h (HTTP_FLAG_IGNORE_IPv4, HTTP_FLAG_IGNORE_IPv4): New.
* dirmngr/ks-engine-hkp.c (map_host): Add arg r_httpflags.
(make_host_part): Ditto.
(send_request): Add arg httpflags.
(ks_hkp_search, ks_hkp_get, ks_hkp_put): Handle httpflags.
2014-03-14 17:00:10 +01:00
Werner Koch
d7fbefeb82 dirmngr: Do not use brackets around legacy IP addresses.
* dirmngr/ks-engine-hkp.c (my_getnameinfo): Change args to take a
complete addrinfo.  Bracket only v6 addresses.  Change caller.
2014-03-14 16:22:54 +01:00
Werner Koch
a401f768ca gpg: Print the actual used keyserver address.
* dirmngr/ks-engine-hkp.c (ks_hkp_search, ks_hkp_get): Print SOURCE
status lines.
* g10/call-dirmngr.c (ks_status_parm_s): New.
(ks_search_parm_s): Add field stparm.
(ks_status_cb): New.
(ks_search_data_cb): Send source to the data callback.
(gpg_dirmngr_ks_search): Change callback prototope to include the
SPECIAL arg.  Adjust all users.  Use ks_status_cb.
(gpg_dirmngr_ks_get): Add arg r_source and use ks_status_cb.
* g10/keyserver.c (search_line_handler): Adjust callback and print
"data source" disgnostic.
(keyserver_get): Print data source diagnostic.
--

It has often been requested that the actually used IP of a keyservers
is shown in with gpg --recv-key and --search-key.  This is helpful if
the keyserver is actually a pool of keyservers.  This patch does this.
2014-03-14 16:12:54 +01:00
Werner Koch
fb56a273b1 dirmngr: Detect dead keyservers and try another one.
* dirmngr/ks-action.c (ks_action_resolve): Rename var for clarity.
(ks_action_search, ks_action_put): Ditto.
(ks_action_get): Consult only the first server which retruned some
data.

* dirmngr/ks-engine-hkp.c (SEND_REQUEST_RETRIES): New.
(map_host): Add arg CTRL and call dirmngr_tick.
(make_host_part): Add arg CTRL.
(mark_host_dead): Allow the use of an URL.
(handle_send_request_error): New.
(ks_hkp_search, ks_hkp_get, ks_hkp_put): Mark host dead and retry on
error.
2014-03-12 14:33:51 +01:00
Werner Koch
0b2cca807d dirmngr: Put brackets around IP addresses in the hosttable.
* dirmngr/ks-engine-hkp.c (EAI_OVERFLOW): Provide a substitute.
(my_getnameinfo): New.
(map_host): Use it.
2014-03-11 18:02:29 +01:00
Werner Koch
a3dee28891 dirmngr: Add command option to mark hosts as dead or alive.
* dirmngr/server.c (cmd_killdirmngr): Factor some code out to ...
(check_owner_permission): here.
(cmd_keyserver): Add options --dead and --alive.
* dirmngr/ks-engine-hkp.c (host_in_pool_p): New.
(ks_hkp_mark_host): New.
--

Also removed the warning that the widnows part has not yet been done.
AFAICS, the current mingw supports the all used socket functions.
2014-03-11 16:30:36 +01:00
Werner Koch
3c35b46a32 dirmngr: Fix HKP host selection code.
* dirmngr/server.c (cmd_keyserver): Add option --resolve and change
--print-hosttable to --hosttable.
* dirmngr/ks-action.c (ks_printf_help): New.
(ks_action_resolve): New.
* dirmngr/ks-engine-hkp.c (select_random_host): Fix selection.
(ks_hkp_print_hosttable): Print to assuan stream.
(map_host): Remove debug code.  Add arg FORCE_SELECT.  Return numeric
IP addr if it can't be resolved.
(make_host_part): Add arg FORCE_SELECT; change callers to pass false.
(ks_hkp_resolve): New.
--

The new options for the keyserver command are useful for debugging.
For example:

  $ tools/gpg-connect-agent -S /usr/local/var/run/gnupg/S.dirmngr \
          'keyserver hkp://keys.gnupg.net' \
          'keyserver http://http-keys.gnupg.net' \
          'keyserver --resolve --hosttable' /bye

yields:

  OK
  OK
  S # http://astrath.net:80
  S # http://2001:41d0:1:e673::1:11371
  S # hosttable (idx, ipv4, ipv6, dead, name):
  S #   0       http-keys.gnupg.net
  S #   .   --> 10 11 12 1 5 8 7 4* 2 9 6 3
  S #   1 4     37.250.168.245.bredband.tre.se
  S #   2 4 6   keys.exosphere.de
  S #   3 4 6   poseidon.muc.drweb-av.de
  S #   4 4     astrath.net
  S #   5 4     79.143.214.216
  S #   6 4     openpgp.andrew.kvalhe.im
  S #   7 4     app.aaiedu.hr
  S #   8 4 6   alita.karotte.org
  S #   9 4 6   keyserver.bau5net.com
  S #  10 4     194.94.127.122
  S #  11   6   2001:4d88:1ffc:477::7
  S #  12   6   2a00:1280:8000:2:1:8:0:1
  S #  13       keys.gnupg.net
  S #   .   --> 23 28* 30 17 22 8 7 27 25 14 21 20 19 29 [...]
  S #  14 4     hufu.ki.iif.hu
  S #  15 4     pks.ms.mff.cuni.cz
  S #  16 4     pgpkeys.co.uk
  S #  17 4     80-239-156-219.customer.teliacarrier.com
  S #  18 4     srv01.secure-u.de
  S #  19 4     mallos.xs4all.nl
  S #  20 4     kronecker.scientia.net
  S #  21 4     keyserver.ut.mephi.ru
  S #  22 4     89-68-150-88.dynamic.chello.pl
  S #  23   6   2001:1608:21:6:84:200:66:125
  S #  24   6   sks.es.net
  S #  25   6   gstueve-1-pt.tunnel.tserv13.ash1.ipv6.he.net
  S #  26   6   sks.mrball.net
  S #  27   6   gozer.rediris.es
  S #  28   6   2001:41d0:1:e673::1
  S #  29   6   oteiza.siccegge.de
  S #  30   6   2403:4200:401:10::13
  S #  31   6   statler.serviz.fr
  OK
2014-03-11 16:30:36 +01:00
Werner Koch
cb0dcc3408 w32: Include winsock2.h to silence warnings. 2014-03-07 14:18:43 +01:00
Werner Koch
096e7457ec Change all quotes in strings and comments to the new GNU standard.
The asymmetric quotes used by GNU in the past (`...') don't render
nicely on modern systems.  We now use two \x27 characters ('...').

The proper solution would be to use the correct Unicode symmetric
quotes here.  However this has the disadvantage that the system
requires Unicode support.  We don't want that today.  If Unicode is
available a generated po file can be used to output proper quotes.  A
simple sed script like the one used for en@quote is sufficient to
change them.

The changes have been done by applying

  sed -i "s/\`\([^'\`]*\)'/'\1'/g"

to most files and fixing obvious problems by hand.  The msgid strings in
the po files were fixed with a similar command.
2012-06-05 19:29:22 +02:00
David Shaw
3f59561cee Adapt HKP fix for fingerprint/long keyid retrievals for dirmngr
* dirmngr/ks-engine-hkp.c (ks_hkp_get): Use the longest valid keyid form
2012-01-10 10:23:54 -05:00
Werner Koch
231d27e0fe Make HKP keyserver engine work again.
We had some debug code here which prevented it from working.
The host selection code still needs a review!

	* ks-engine-http.c (ks_http_help): Do not print help for hkp.
	* ks-engine-hkp.c (ks_hkp_help): Print help only for hkp.
	(send_request): Remove test code.
	(map_host): Use xtrymalloc.

	* certcache.c (classify_pattern): Remove unused variable and make
	explicit substring search work.
2011-11-24 16:15:08 +01:00
Werner Koch
5da12674ea Fix regression in gpg's mail address parsing.
Since 2009-12-08 gpg was not able to find email addresses indicated
by a leading '<'.  This happened when I merged the user id
classification code of gpgsm and gpg.
2011-04-25 23:59:25 +02:00
Werner Koch
f1e9f510ec Add code for explicit selection of pooled A records.
To better cope with round robin pooled A records like keys.gnupg.net
we need to keep some information on unresponsive hosts etc.  What we
do now is to resolve the hostnames, remember them and select a random
one.  If a host is dead it will be marked and a different one
selected.  This is intended to solve the problem of long timeouts due
to unresponsive hosts.

The code is not yet finished but selection works.
2011-04-12 16:30:08 +02:00
Werner Koch
1cdcab6892 Add framework to print keyserver engine information 2011-02-09 18:20:05 +01:00
Werner Koch
b008274afd Nuked almost all trailing white space.
We better do this once and for all instead of cluttering all future
commits with diffs of trailing white spaces.  In the majority of cases
blank or single lines are affected and thus this change won't disturb
a git blame too much.  For future commits the pre-commit scripts
checks that this won't happen again.
2011-02-04 12:57:53 +01:00
Werner Koch
7f32d88ed1 All standard keyserver commands are now using dirmngr. 2011-01-20 14:12:53 +01:00
Werner Koch
357f8d5398 Keyserver search and get basically works again. 2011-01-18 12:51:16 +01:00
Werner Koch
8c8c45725f Initial code checking for backup - not yet working. 2011-01-10 14:30:17 +01:00