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* dirmngr: New option --no-use-tor and internal changes.Werner Koch2017-02-0111-23/+75
| | | | | | | | | | | | | | | | | | | | | | * dirmngr/dns-stuff.c (disable_dns_tormode): New. * dirmngr/dirmngr.c (oNoUseTor): New const. (opts): New option --no-use-tor. (tor_mode): New var. (parse_rereadable_options): Change to use TOR_MODE. (dirmngr_use_tor): New. (set_tor_mode): Call disable_dns_tormode. Implement oNoUseTor. * dirmngr/dirmngr.h (opt): Remove field 'use_tor'. Replace all references by a call to dirmngr_use_tor(). * dirmngr/server.c (cmd_getinfo): Distinguish between default and enforced TOR_MODE. -- This patch replaces the global variable opt.use_tar by a function testing a file local mode flag. This patch prepares for a use-tor-if-available mode. GnuPG-bug-id: 2935 Signed-off-by: Werner Koch <[email protected]>
* Fix explanation of commit e175152ef7515921635bf1e00383e812668d13fc.Werner Koch2017-02-011-1/+1
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* dirmngr: Require --allow-version-check even if --use-tor is used.Werner Koch2017-01-311-1/+1
| | | | | | | * dirmngr/dirmngr.c (housekeeping_thread): Load swdb only if the option is set. Signed-off-by: Werner Koch <[email protected]>
* gpg: Print a warning on Tor problems.Werner Koch2017-01-241-15/+45
| | | | | | | | | | | | * dirmngr/ks-engine-hkp.c (tor_not_running_p): New. (map_host): Call that to print a warning. (handle_send_request_error): Ditto and avoid marking the host dead. Also print a tor_config_problem warning. Add arg CTRL; adjust callers to pass that new arg. * g10/call-dirmngr.c (ks_status_cb): Detect and print the new warnings. Signed-off-by: Werner Koch <[email protected]>
* dirmngr: Simplify error returning inside http.c.Werner Koch2017-01-241-51/+50
| | | | | | | | | | | | * dirmngr/http.c (connect_server): Change to return an gpg_error_t and to store socket at the passed address. (http_raw_connect, send_request): Adjust accordingly. -- This change removes cruft from the code and allows to return the error code from the name lookup. Signed-off-by: Werner Koch <[email protected]>
* dirmngr: New option --disable-ipv4.Werner Koch2017-01-249-6/+41
| | | | | | | | | | | | | | | | | | | * dirmngr/dirmngr.c (oDisableIPv4): New const. (opts): New option --disable-ipv4. (parse_rereadable_options): Set that option. * dirmngr/dirmngr.h (opt): New field 'disable_ipv4'. * dirmngr/dns-stuff.c (opt_disable_ipv4): bew var. (set_dns_disable_ipv4): New. (resolve_name_standard): Skip v4 addresses when OPT_DISABLE_IPV4 is set. * dirmngr/ks-engine-hkp.c (map_host): Ditto. (send_request): Pass HTTP_FLAG_IGNORE_IPv4 if opt.disable_v4 is set. * dirmngr/crlfetch.c (crl_fetch): Ditto. * dirmngr/ks-engine-finger.c (ks_finger_fetch): Ditto. * dirmngr/ks-engine-http.c (ks_http_fetch): Ditto. * dirmngr/ocsp.c (do_ocsp_request): Ditto. Signed-off-by: Werner Koch <[email protected]>
* Fix format string errors and some missing error case initialization.Werner Koch2017-01-236-7/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | * common/logging.c (do_logv): Remove extra parentheses in comparison. * dirmngr/dns-stuff.c (resolve_addr_libdns): Init RES so that dns_res_close is given a defined value in the error case. * dirmngr/http.c (cookie_read, cookie_write) [HTTP_USE_NTBTLS]: Fix format string char. * dirmngr/ks-engine-hkp.c (ks_hkp_help): Remove duplicate "const". * dirmngr/ks-engine-http.c (ks_http_help): Ditto. * dirmngr/ks-engine-kdns.c (ks_kdns_help): Ditto. * dirmngr/ks-engine-ldap.c (ks_ldap_help): Ditto. * scd/app-p15.c (send_keypairinfo, do_getattr): Fix format string char. * tools/gpgconf-comp.c (gpg_agent_runtime_change): Init PID for the error case. (scdaemon_runtime_change): Ditto. (dirmngr_runtime_change): Ditto. * tools/gpgconf.c (query_swdb): Init VALUE_SIZE_UL. Signed-off-by: Werner Koch <[email protected]>
* dirmngr: On SIGHUP mark all keyservers alive.Werner Koch2017-01-233-0/+25
| | | | | | | * dirmngr/ks-engine-hkp.c (ks_hkp_reload): New. * dirmngr/dirmngr.c (dirmngr_sighup_action): Call it. Signed-off-by: Werner Koch <[email protected]>
* libdns: Hack to skip negation term.Gaetan Bisson2017-01-231-1/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | * dirmngr/dns.c (dns_nssconf_loadfile): Skip negation terms in nsswitch.conf parser. -- This small patch was submitted along with this comment: We've been having issues over at Arch Linux with the new libdns code. Our /etc/nsswitch.conf contains the following line: hosts: files mymachines resolve [!UNAVAIL=return] dns myhostname And it turns out dirmngr fails to parse the negation statement (the bang in !UNAVAIL). This results in gnupg not being able to resolve any name. Looking at dirmngr/dns.c it was unclear to me how to properly handle such negations. The dns_anyconf_scan calls used in dns_nssconf_loadfile do not allow to store a negation bit easily... In the meantime, I wrote the attached patch which ignores those statements altogether. It makes libdns work as expected for us. Commit log written by wk
* dirmngr: Print debug message only with --debug.Werner Koch2017-01-231-1/+2
| | | | | | | | * dirmngr/dns-stuff.c (libdns_init): Call log_debug only if opt_debug is set. -- Signed-off-by: Werner Koch <[email protected]>
* dirmngr: Handle missing nsswitch.conf.Phil Pennock2017-01-231-1/+10
| | | | | | | | | | | | | | | | | | | * dirmngr/dns-stuff.c (libdns_init): Fallback to files,dns. -- Signed-off-by: Phil Pennock <[email protected]> ChangeLog entry by wk. This fixed the problem: Short version: macOS doesn't include /etc/nsswitch.conf and GnuPG's dirmngr is hard-erroring when that file is missing, such that no DNS operations succeed and --recv-key returns ENOENT type errors to the caller. Signed-off-by: Werner Koch <[email protected]>
* dirmngr: Add setup of CA for NTBTLS.NIIBE Yutaka2017-01-191-1/+78
| | | | | | | * dirmngr/http.c [HTTP_USE_NTBTLS] (http_session_new): Add CA by ntbtls_set_ca_chain. Signed-off-by: NIIBE Yutaka <[email protected]>
* dirmngr: Implement hkps lookups using literal addresses.Werner Koch2017-01-161-1/+29
| | | | | | | * dirmngr/ks-engine-hkp.c (map_host): For literal addresses do a reverse lookup. Signed-off-by: Werner Koch <[email protected]>
* dirmngr: Allow reverse DNS lookups in Tor-mode.Werner Koch2017-01-161-31/+182
| | | | | | | | | | | | | * dirmngr/dns-stuff.c (resolve_dns_name): Move up in the file. (resolve_addr_libdns): New. (resolve_dns_addr): Divert to resolve_dns_addr. -- In the old code reverse lookups where disabled in Tor mode. By implementing the reverse lookups via libdns it is now possible to do them also in Tor mode. Signed-off-by: Werner Koch <[email protected]>
* dirmngr: Avoid network queries for literal IP addresses.Werner Koch2017-01-161-0/+4
| | | | | | | | * dirmngr/dns-stuff.c (resolve_name_libdns): USe flags AI_NUMERICHOST for literal IP addresses. (resolve_name_standard): Ditto. Signed-off-by: Werner Koch <[email protected]>
* dirmngr: Fix URL creation for literal IPv6 addresses in HKP.Werner Koch2017-01-162-31/+39
| | | | | | | | | | | | | | * dirmngr/dns-stuff.c (is_ip_address): Make the return value depend on the address family. * dirmngr/ks-engine-hkp.c (map_host): Rename arg R_POOLNAME to R_HTTPHOST because that is its purpose. Note that the former behaviour of storing a NULL to indicate that it is not a pool has not been used. (make_host_part): Ditto. (make_host_part): Make sure that literal v6 addresses are correclty marked in the constructed URL. Signed-off-by: Werner Koch <[email protected]>
* libdns: Silence -Wstrict-prototypes on some function ptrs.Werner Koch2017-01-121-0/+13
| | | | | | * dirmngr/dns.c (dns_rrtype): Ignore -Wstrict-prototypes warning. Signed-off-by: Werner Koch <[email protected]>
* libdns: Provide replacement for EPROTO.Werner Koch2017-01-121-0/+4
| | | | | | | | | | | * dirmngr/dns.c (EPROTO) ![EPROTO]: Define to EPROTONOSUPPORT. -- This is the same replacement we use in Libassuan (commit 8ab3b9273524bd344bdb90dd5d3bc8e5f53ead6e) to make it work on OpenBSD and may other BSD based OSes. Signed-off-by: Werner Koch <[email protected]>
* dirmngr: After a connection failure log a hint if Tor is not running.Werner Koch2017-01-111-0/+11
| | | | | | | * dirmngr/ks-engine-hkp.c (handle_send_request_error): Check whether Tor is running. Signed-off-by: Werner Koch <[email protected]>
* dirmngr: Mark hosts dead on ENETDOWN.Werner Koch2017-01-111-0/+5
| | | | | | | * dirmngr/ks-engine-hkp.c (handle_send_request_error): Take care of ENETDOWN. Signed-off-by: Werner Koch <[email protected]>
* dirmngr: Fix Tor access for v6 addresses.Werner Koch2017-01-111-1/+63
| | | | | | | | | | | | | | | | | | | * dirmngr/http.c (use_socks): New. (my_sock_new_for_addr): New. (connect_server): Replace assuan_sock_new by my_sock_new_for_addr. -- Libassuan always uses 127.0.0.1 to connect to the local Tor proxy. https.c used to create a socket for the actual address family and thus the connect call in Libassuan fails when it tries to connect to a v6 address using a v4 socket. It would be cleaner to have the my_sock_new_for_addr function as a public interface in Libassuan; for now we need to duplicate some code. from Libassuan. GnuPG-bug-id: 2902 Signed-off-by: Werner Koch <[email protected]>
* dirmngr: Remove warnings about unused global variables.Werner Koch2017-01-112-2/+2
| | | | | | | * dirmngr/crlcache.c (oidstr_issuingDistributionPoint): Comment. * dirmngr/ocsp.c (oidstr_certHash): Comment. Signed-off-by: Werner Koch <[email protected]>
* dirmngr: Implement debug option "network" for http.Werner Koch2017-01-111-0/+1
| | | | | | * dirmngr/dirmngr.c (parse_rereadable_options): Set http debugging. Signed-off-by: Werner Koch <[email protected]>
* dirmngr: Add debug code to http.c.Werner Koch2017-01-112-22/+54
| | | | | | | | | | | | | * dirmngr/http.c (opt_verbose, opt_debug): New vars. (http_set_verbose): New function. (_my_socket_new): Add debug output. (_my_socket_ref, _my_socket_unref, session_unref): Call log_debug if OPT_DEBUG has ben set to 2 in a debugger. (http_session_new, http_session_ref): Ditto. (send_request, http_start_data): Print debug output for the request. (parse_response): Change to use log_debug_string for the response. Signed-off-by: Werner Koch <[email protected]>
* dirmngr: Use "pgpkey-hkps" and "pgpkey-hkp" for SRV record lookups.Werner Koch2017-01-091-29/+34
| | | | | | | | | | | | | * dirmngr/ks-engine-hkp.c (map_host): Chnage arg NO_SRV to SRVTAG. (make_host_part): Rewrite. -- This fixes a regression from 2.0 and 1.4 where these tags have been in used since 2009. For whatever reason this was not ported to 2.1 and "hkp" was always used. GnuPG-bug-id: 2451 Signed-off-by: Werner Koch <[email protected]>
* dirmngr: Do not use a SRV record for HKP if a port was specified.Werner Koch2017-01-093-28/+40
| | | | | | | | | | | | | | | | | * dirmngr/http.h (parsed_uri_s): Add field EXPLICIT_PORT. * dirmngr/http.c (do_parse_uri): That it. * dirmngr/ks-engine-hkp.c (map_host): Add arg NO_SRV. (make_host_part): Ditto. (ks_hkp_resolve): Set NO_SRV from EXPLICIT_PORT. (ks_hkp_search): Ditto. (ks_hkp_get): Ditto. (ks_hkp_put): Ditto. -- This implements the behaviour of the keyserver helpers from 1.4 and 2.0. Signed-off-by: Werner Koch <[email protected]>
* dirmngr: Implement experimental SRV record lookup for WKD.Werner Koch2017-01-081-1/+51
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * dirmngr/server.c (cmd_wkd_get): Support SRV records. -- This patch changes the way a WKD query is done. Now we first look for a SRV record for service "openpgpkey" and port "tcp" under the to-be-queried domain. If such a record was found and the target host matches the to-be-queried domain or is a suffix to that domain, that target host is used instead of the domain name. The SRV record also allows to change the port and obviously can be used for load-balancing. For example a query for the submission address of example.org with the SRV record specification _openpgpkey._tcp IN SRV 0 0 0 wkd.foo.org. IN SRV 0 0 0 wkd.example.net. IN SRV 0 0 4711 wkd.example.org. (queried using the name "_openpgpkey._tcp.example.org") would fetch from this URL: https://wkd.example.org:4711/.well-known/openpgpkey/submission-address Note that the first two SRV records won't be used because foo.org and example.net do not match example.org. We require that the target host is identical to the domain or be a subdomain of it. This is so that an attacker modifying the SRV records needs to setup a server in a sub-domain of the actual domain and can't use an arbitrary domain. Whether this is a sufficient requirement is not clear and needs further discussion. Signed-off-by: Werner Koch <[email protected]>
* dirmngr: Improve debug output for TLS.Werner Koch2017-01-081-0/+8
| | | | | | * dirmngr/misc.c (dump_cert): Also print SubjectAltNames. Signed-off-by: Werner Koch <[email protected]>
* dirmngr: Change internal SRV lookup API.Werner Koch2017-01-085-37/+31
| | | | | | | | | | | | | * dirmngr/dns-stuff.c (get_dns_srv): Add args SERVICE and PROTO. * dirmngr/http.c (connect_server): Simplify SRV lookup. * dirmngr/ks-engine-hkp.c (map_host): Ditto. * dirmngr/t-dns-stuff.c (main): Adjust for changed get_dns_srv. -- This new API is more convenient because it includes commonly used code. Note that right now http.c's SRV record code is not used. Signed-off-by: Werner Koch <[email protected]>
* dirmngr: Strip root zone suffix from libdns SRV results.Werner Koch2017-01-081-0/+4
| | | | | | | | | * dirmngr/dns-stuff.c (getsrv_libdns): Strip trailing dot from the target. -- See-also: b200e636ab20d2aa93d9f71f3789db5a04af0a56 Signed-off-by: Werner Koch <[email protected]>
* dirmngr: Make sure Tor mode is also set for DNS on SIGHUP.Werner Koch2017-01-035-37/+14
| | | | | | | | | | | | | | | | | | | * dirmngr/dns-stuff.c (enable_dns_tormode): Always succeed. (reload_dns_stuff): Reset tor port. * dirmngr/dirmngr.c (set_tor_mode): Also enable Tor mode for DNS. (main): Remove warning that Tor mode may not fully work. * dirmngr/server.c (cmd_dns_cert): Remove explicit Tor for DNS initialization. * dirmngr/t-dns-stuff.c (main): Remove option --new-circuit and error checking for enable_dns_tormode. -- This patch also resets the port on SIGHUP so that after starting Tor SIGHUP is sufficient to use Tor. Without the SIGHUP and when not using the Tor browser Dirmngr would keep on trying the Tor browser port. Signed-off-by: Werner Koch <[email protected]>
* dirmngr: New debug message on correctly initialized libdns.Werner Koch2017-01-031-1/+4
| | | | | | | | | | * dirmngr/dns-stuff.c (libdns_init): Add debug level diagnostic on success. -- This output may help to avoid questions when evaluating an Assuan log. Signed-off-by: Werner Koch <[email protected]>
* dirmngr: Strip root zone suffix from libdns cname results.Werner Koch2017-01-021-0/+11
| | | | | | | | * dirmngr/dns-stuff.c (resolve_name_libdns): Strip trailing dot. (get_dns_cname_libdns): Ditto. -- Signed-off-by: Werner Koch <[email protected]>
* dirmngr: Fix for --disable-libdns usage.NIIBE Yutaka2016-12-231-3/+9
| | | | | | | | | | | | | | * dirmngr/dns-stuff.c (enable_recursive_resolver, set_dns_nameserver) (reload_dns_stuff): Conditionalize with USE_LIBDNS. (get_h_errno_as_gpg_error): Map HOST_NOT_FOUND to GPG_ERR_NO_NAME. -- get_dns_srv assumes error code of GPG_ERR_NO_NAME when no SRV record available. Signed-off-by: NIIBE Yutaka <[email protected]> GnuPG-bug-id: 2889
* dirmngr: New option --resolver-timeout.Werner Koch2016-12-205-5/+55
| | | | | | | | | | | | | | | | | | | | | | | | | * dirmngr/dns-stuff.c (DEFAULT_TIMEOUT): New. (opt_timeout): New var. (set_dns_timeout): New. (libdns_res_open): Set the default timeout. (libdns_res_wait): Use configurable timeout. (resolve_name_libdns): Ditto. * dirmngr/dirmngr.c (oResolverTimeout): New const. (opts): New option --resolver-timeout. (parse_rereadable_options): Set that option. (main) <aGPGConfList>: Add --nameserver and --resolver-timeout. * tools/gpgconf-comp.c (gc_options_dirmngr): Add --resolver-timeout and --nameserver. * dirmngr/http.c (connect_server): Fix yesterday introduced bug in error diagnostic. -- This timeout is a pretty crude thing because libdns has a few other internal timeouts as well. Signed-off-by: Werner Koch <[email protected]>
* dirmngr: Fix problems with the getsrv function.Werner Koch2016-12-196-42/+103
| | | | | | | | | | | | | | | | | | | | | | | | | | * dirmngr/dns-stuff.c (opt_debug, opt_verbose): New vars. (set_dns_verbose): New func. (libdns_switch_port_p): Add debug output. (resolve_dns_name): Ditto. (get_dns_cert): Ditto. (get_dns_cname): Ditto. (getsrv_libdns, getsrv_standard): Change SRVCOUNT to an unsigend int. (getsrv): Rename to ... ((get_dns_srv): this. Add arg R_COUNT and return an error. Add debug output. * dirmngr/http.c: Adjust for chnaged getsrv(). * dirmngr/ks-engine-hkp.c (map_host): Ditto. * dirmngr/t-dns-stuff.c (main): Ditto. Call set_dns_verbose. * dirmngr/dirmngr.c (parse_rereadable_options): Call set_dns_verbose. -- Due to our switch to Libdns getsrv didn't worked correctly because it returned -1 for an NXDOMAIN. However, it is perfectly okay to have no SRV record and thus we change the way this function is called to be aligned with the other functions and also map NXDOMAIN to a zero SRV record count. Signed-off-by: Werner Koch <[email protected]>
* dirmngr,w32: Hack around a select problem.Werner Koch2016-12-191-2/+3
| | | | | | | | | | | | | | | | | * dirmngr/dns.c (FD_SETSIZE): Bump up to 1024. (dns_poll): Return an error instead of hitting an assertion failure. -- For unknown reasons socket() return fd with values 244, 252, 268. The latter is above the FD_SETSIZE of 256. It seems that select has been build with a highler FD_SETSIZE limit. Bump up to a reasonable large value. A better solution would be to grab some code from npth_eselect to replace select. We could also use npth_eselect direclty in dns-stuff.c instead of using dns_res_poll. Signed-off-by: Werner Koch <[email protected]>
* Remove unused debug flags and add "dns" and "network".Werner Koch2016-12-192-0/+6
| | | | | | | | | | | | | | | | | | * g10/options.h (DBG_CARD_IO_VALUE, DBG_CARD_IO): Remove. * g10/gpg.c (debug_flags): Remove "cardio". * agent/agent.h (DBG_COMMAND_VALUE, DBG_COMMAND): Remove. * agent/gpg-agent.c (debug_flags): Remove "command". * scd/scdaemon.h (DBG_COMMAND_VALUE, DBG_COMMAND): Remove. * scd/scdaemon.c (debug_flags): Remove "command". * dirmngr/dirmngr.h (DBG_DNS_VALUE, DBG_DNS): New. (DBG_NETWORK_VALUE, DNG_NETWORK): New. * dirmngr/dirmngr.c (debug_flags): Add "dns" and "network". -- Note that "dns" and "network" are not yet used but will soon be added to dirmngr. Signed-off-by: Werner Koch <[email protected]>
* dirmngr: Fix setup of libdns for W32.Werner Koch2016-12-172-2/+61
| | | | | | | | | | | * configure.ac (DNSLIB) {W32]: Add -liphlpapi. * dirmngr/dns-stuff.c [W32]: Include iphlpapi.h and define WIN32_LEAN_AND_MEAN. (libdns_init) [W32]: Use GetNetworkParams to get the nameserver. * dirmngr/t-dns-stuff.c (init_sockets): New. (main): Call it. Signed-off-by: Werner Koch <[email protected]>
* dirmngr: Auto-switch from Tor port to Torbrowser port.Werner Koch2016-12-161-7/+61
| | | | | | | | | | | | | * dirmngr/dns-stuff.c (libdns_tor_port): New var. (set_dns_nameserver): Clear that var. (libdns_init): Init var to the default port. (libdns_switch_port_p): New func. (resolve_dns_name): Use function to switch the port (get_dns_cert): Ditto. (getsrv): Ditto. (get_dns_cname): Ditto. Signed-off-by: Werner Koch <[email protected]>
* dirmngr: Use one context for all libdns queries.Werner Koch2016-12-164-1/+56
| | | | | | | | | | | | | | | | | * dirmngr/dns-stuff.c (libdns_reinit_pending): New var. (enable_recursive_resolver): Set var. (set_dns_nameserver): Ditto. (libdns_init): Avoid double initialization. (libdns_deinit): New. (reload_dns_stuff): New. (libdns_res_open): Act upon LIBDNS_REINIT_PENDING. * dirmngr/t-dns-stuff.c (main): Call reload_dns_stuff to release memory. * dirmngr/dirmngr.c (cleanup): Ditto. (dirmngr_sighup_action): Call reload_dns_stuff to set LIBDNS_REINIT_PENDING. Signed-off-by: Werner Koch <[email protected]>
* dirmngr: Pass Tor credentials to libdns.Werner Koch2016-12-161-9/+13
| | | | | | | | | * dirmngr/dns-stuff.c (tor_credentials): Replace by ... (tor_socks_user, tor_socks_password): new vars. (enable_dns_tormode): Set these new vars. (libdns_res_open): Tell libdns the socks credentials. Signed-off-by: Werner Koch <[email protected]>
* dirmngr: Factor common libdns code out.Werner Koch2016-12-161-95/+86
| | | | | | | | | | | | * dirmngr/dns-stuff.c (libdns_res_open): New. Replace all libdns_init and dns-res_open by a call to this func. (libdns_res_submit): New wrapper. Replace all dns_res_sumbit calls. (libdns_res_wait): New function. (resolve_name_libdns): Replace loop by libdns_res_wait. (get_dns_cert_libdns): Ditto. (getsrv_libdns): Ditto. Signed-off-by: Werner Koch <[email protected]>
* dirmngr: First patch to re-enable Tor support.Werner Koch2016-12-151-32/+100
| | | | | | | | | | | | * dirmngr/dns-stuff.c (SOCKS_PORT, TOR_PORT, TOR_PORT2): New constants. (libdns_init): Start adding tor support. (resolve_name_libdns): Pass socks hosts to dns_res_open. (get_dns_cert_libdns): Ditto. (getsrv_libdns): Ditto. (get_dns_cname_libdns): Ditto. Signed-off-by: Werner Koch <[email protected]>
* dirmngr: New configure option --disable-libdns.Werner Koch2016-12-146-7/+81
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * configure.ac: Add option --disable-libdns (USE_LIBDNS): New ac_subst and am_conditional. (USE_C99_CFLAGS): Set only if libdns is used. * dirmngr/Makefile.am (dirmngr_SOURCES): Move dns.c and dns.h to ... (dirmngr_SOURCES) [USE_LIBDNS0: here. (t_common_src): Ditto. * dirmngr/dirmngr.c (oRecursiveResolver): New constant. (opts): New option "--recursive-resolver". (parse_rereadable_options): Set option. * dirmngr/t-dns-stuff.c (main): Add option --recursive-resolver. * dirmngr/server.c (cmd_getinfo): Depend output of "dnsinfo" on the new variables. * dirmngr/dns-stuff.c: Include dns.h only if USE_DNSLIB is defined. Also build and call dnslib functions only if USE_DNSLIB is defined. (recursive_resolver): New var. (enable_recursive_resolver): New func. (recursive_resolver_p): New func. -- In case users run into problems building GnuPG, the configure option allows to disable that support and continue w/o Tor support using the system resolver. --recursive-resolver was easy enough to implement and may be useful in some situation. It does not fully work, though. Signed-off-by: Werner Koch <[email protected]>
* dirmngr: Implement CERT record lookup via libdns.Werner Koch2016-12-141-2/+188
| | | | | | | * dirmngr/dns-stuff.c (get_dns_cert_libdns): New. (get_dns_cert_standard): Fix URL malloc checking. Signed-off-by: Werner Koch <[email protected]>
* dirmngr: Implement CNAME and SRV record lookup via libdns.Werner Koch2016-12-141-64/+283
| | | | | | | | | | | | * dirmngr/dns-stuff.c (dns_free): New macro. (libdns): Move var to the top. (libdns_error_to_gpg_error): Map error codes to the new gpg-error codes. (resolve_name_libdns): Restructure code. (getsrv_libdns): New. (get_dns_cname_libdns): New. Signed-off-by: Werner Koch <[email protected]>
* dirmngr: Fix bugs in the standard resolver code.Werner Koch2016-12-141-24/+60
| | | | | | | | | | | | | | | * dirmngr/dns-stuff.c: Include dirmngr-err.h to set the correct error source. (get_h_errno_as_gpg_error): New. (get_dns_cert_libdns): Fix error code. (getsrv_libdns): Add arg R_COUNT and return an error code. (getsrv_standard): Ditto. Fix handling of res_query errors and provide the correct size for the return buffer. (getsrv): Adjust for changed worker functions. (get_dns_cname_standard): Fix handling of res_query errors and provide the correct size for the return buffer. Signed-off-by: Werner Koch <[email protected]>
* dirmngr: Require a c99 compilerWerner Koch2016-12-141-4/+5
| | | | | | | | | | | | | | | | | | * configure.ac (USE_C99_CFLAGS): New ac_subst. Set to -std=gnu99 for gcc. * dirmngr/Makefile.am (AM_CFLAGS): Add USE_C99_CFLAGS. (t_http_CFLAGS): Ditto. (t_ldap_parse_uri_CFLAGS): Ditto. (t_dns_stuff_CFLAGS): Ditto. -- C99 and the GCC option is required for use with dns.c which makes heavy use of C99 features. We should consider to switch GnuPG entirely to C99 but enable gcc warnings to detect features which are not supported by not-real-c99 compilers and which makes audits harder (VLA etc.). Signed-off-by: Werner Koch <[email protected]>
* dirmngr: New libdns snapshotJustus Winter2016-12-142-63/+160
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