aboutsummaryrefslogtreecommitdiffstats
path: root/dirmngr/dns-stuff.c (unfollow)
Commit message (Collapse)AuthorFilesLines
2015-11-12dirmngr: Do not block during ADNS calls.Werner Koch1-8/+35
* dirmngr/dns-stuff.c: Include npth.h (my_unprotect, my_protect): New wrapper. (resolve_name_adns): Put unprotect/protect around adns calls. (get_dns_cert): Ditto. (getsrv): Ditto. (get_dns_cname): Ditto. Signed-off-by: Werner Koch <[email protected]>
2015-11-12dirmngr: New option --nameserver.Werner Koch1-2/+27
* dirmngr/dirmngr.c (oNameServer): New. (opts): Add --nameserver. (parse_rereadable_options): Act upon oNameServer. * dirmngr/dns-stuff.c (DEFAULT_NAMESERVER): New. (tor_nameserver): New. (set_dns_nameserver): New. (my_adns_init): Make name server configurable. Signed-off-by: Werner Koch <[email protected]>
2015-11-09dirmngr: Change to new ADNS Tor mode init scheme.Werner Koch1-7/+46
* dirmngr/dns-stuff.c (tor_credentials): New. (enable_dns_tormode): Add arg new_circuit and update tor_credentials. (my_adns_init): Rework to set Tor mode using a config file options and always use credentials. * dirmngr/server.c (cmd_dns_cert): Improve error message. * dirmngr/t-dns-stuff.c (main): Add option --new-circuit. -- Note that the option --new-circuit in t-dns-stuff is not really useful because a new circuit is also used for the first call to the function. Todo: We need to find a policy when to requrest a new curcuit and we also need to add credentials to the assuan_sock_connect calls. Signed-off-by: Werner Koch <[email protected]>
2015-11-09dirmngr: Improve detection of ADNS.Werner Koch1-0/+5
* configure.ac (HAVE_ADNS_FREE): New ac_define. Signed-off-by: Werner Koch <[email protected]>
2015-10-28dirmngr: Minor cleanup of the SRV RR code.Werner Koch1-3/+11
* dirmngr/dns-stuff.c: Include unistd.h. (getsrv): Run srand only once. * dirmngr/t-dns-stuff.c (main): Allow passing another name for --srv and change output format.
2015-10-28dirmngr: Add a getaddrinfo wrapper backend using ADNS.Werner Koch1-51/+143
* dirmngr/dns-stuff.c: Replace all use of default_errsource. (my_adns_init): Move to top. (resolve_name_adns): New. (resolve_dns_name) [USE_ADNS]: Divert to new func. Signed-off-by: Werner Koch <[email protected]>
2015-10-26dirmngr: Support Tor hidden services.Werner Koch1-0/+14
* dirmngr/dns-stuff.c (is_onion_address): New. * dirmngr/ks-engine-hkp.c (hostinfo_s): Add field "onion". (map_host): Special case onion addresses. (ks_hkp_print_hosttable): Print an 'O' for an onion address. * dirmngr/http.c (connect_server): Special case onion addresses. -- Note that this requires the latest libassuan from git. Onion addresses are always support regardless of the --use-tor flag. Signed-off-by: Werner Koch <[email protected]>
2015-10-26dirmngr,w32: Remove gethostbyname hack and make it build again.Werner Koch1-1/+8
* dirmngr/http.c (connect_server) [W32]: Remove gethostbyname hack; we require getaddrinfo anyway. * dirmngr/dns-stuff.c (AI_ADDRCONFIG): Add replacement if not defined. (map_eai_to_gpg_error) [W32]: Take care of unsupported codes. Signed-off-by: Werner Koch <[email protected]>
2015-10-25dirmngr: Add workaround for broken getaddrinfo.Werner Koch1-1/+132
* dirmngr/dns-stuff.c (resolve_name_standard): On failure retry by first resolving the CNAME. (get_dns_cname): New. * dirmngr/t-dns-stuff.c (main): Add option --cname. -- At least the getaddrinfo implementation in glibc 2.19-13 from Debian returns EAI_NONAME if the CNAME points to a too long list of A/AAAA addresses. Looking at the wire the data is correctly returned from the server but getaddrinfo seems to get confused by truncation and retry. To fix this we resolve the CNAME again and call getaddrinfo again with the canonical name. Signed-off-by: Werner Koch <[email protected]>
2015-10-25dirmngr: Better handle systems without IPv6 or IPv4.Werner Koch1-1/+2
* dirmngr/dns-stuff.c (resolve_name_standard): Use AI_ADDRCONFIG.
2015-10-25dirmngr: Implement a getnameinfo wrapper.Werner Koch1-15/+169
* dirmngr/dns-stuff.h (DNS_NUMERICHOST): New. (DNS_WITHBRACKET): New. * dirmngr/dns-stuff.c (resolve_name_standard): Factor code out to... (map_eai_to_gpg_error): new. (resolve_addr_standard): New. (resolve_dns_addr): New. * dirmngr/ks-engine-hkp.c (is_ip_address): Move to ... * dirmngr/dns-stuff.c (is_ip_address): here. Add support for non bracketed v6 addresses. * dirmngr/t-dns-stuff.c: Remove header netdb.h. (main): Add option --bracket. Use resolve_dns_name instead of getnameinfo. Signed-off-by: Werner Koch <[email protected]>
2015-10-22dirmngr: Implement Tor mode for SRV RRs.Werner Koch1-14/+32
* dirmngr/dns-stuff.c (get_dns_cert): Factor adns init out to... (my_adns_init): new. (getsrv)[USE_ADNS]: Use my_adns_init. (getsrv)[!USE_ADNS]: Return an error if Tor mode is active. * dirmngr/t-dns-stuff.c: Add option --use-tor. Signed-off-by: Werner Koch <[email protected]>
2015-10-22dirmngr: Do not use MAXDNAME.Werner Koch1-2/+2
* dirmngr/dns-stuff.c (getsrv): Replace MAXDNAME. * dirmngr/dns-stuff.h (MAXDNAME): Remove. (struct srventry): Use a fixed value instead of MAXDNAME. * dirmngr/http.c (connect_server): Use DIMof instead of MAXDNAME. Malloc a helper array. -- Depending on the order of included headers it might be that we allocate the array with a different size than what we test against in another module. To make it more robust we use the actual known size of checking. A better would be to use a linked list and avoid these large arrays. Signed-off-by: Werner Koch <[email protected]>
2015-10-22Move SRV RR code from common/ to dirmngr/.Werner Koch1-3/+253
* common/srv.c: Merge into dirmngr/dns-stuff.c. Delete file. * common/srv.h: Merge into dirmngr/dns-stuff.h. Delete file. * common/Makefile.am (common_sources): Remove srv.c and srv.h. * g10/keyserver.c: Do not include srv.h. The code using it is anyway disabled. * dirmngr/http.c: Remove header srv.h and stubs. * dirmngr/t-dns-stuff.c: Add option --srv. Signed-off-by: Werner Koch <[email protected]>
2015-10-21dirmngr: Check that getaddrinfo is available.Werner Koch1-0/+4
* dirmngr/Makefile.am (t_http_SOURCES): Add dns-stuff.c. (t_ldap_parse_uri_SOURCES): Ditto. * dirmngr/dns-stuff.c: Bail out if neither ADNS nor getaddrinfo is available. -- We used to have replacement code for getaddrinfo and thus check for it in configure. However, this was for the old http and dns-cert code from common/. For dirmngr I made liberal use of getaddrinfo w/o without checking. Just in case someone tries to build on an old platform we now error our with a suitable #error. Signed-off-by: Werner Koch <[email protected]>
2015-10-21Change capitalization of TOR to Tor.Werner Koch1-1/+1
--
2015-10-21dirmngr: Implement a getaddrinfo wrapper.Werner Koch1-11/+146
* dirmngr/dns-stuff.h: Include some header files. (dns_addinfo_t, dns_addrinfo_s): New. * dirmngr/dns-stuff.c: Always include DNS related headers. (free_dns_addrinfo): New. (resolve_name_standard): New. (resolve_dns_name): New. * dirmngr/t-dns-stuff.c: Include netdb.h. (main): Keep old default mode with no args but else print outout of resolve_dns_name. Revamp option parser. -- This wrapper allows us to switch to ADNS and thus Tor for standard name resultion. Signed-off-by: Werner Koch <[email protected]>
2015-10-21dirmngr: Rename file dns-cert.c.Werner Koch1-3/+4
* dirmngr/dns-cert.c: Rename to dirmngr/dns-stuff.c. * dirmngr/dns-cert.h: Rename to dirmngr/dns-stuff.h and change includers. * dirmngr/t-dns-cert.c: Rename to dirmngr/t-dns-stuff.c. * dirmngr/Makefile.am: Adjust. Signed-off-by: Werner Koch <[email protected]>
2015-10-20dirmngr: Prefer ADNS over system resolver.Werner Koch1-1/+18
* configure.ac (HAVE_ADNS_IF_TORMODE): New ac_define. (USE_DNS_CERT): Prefer ADNS over the system resolver. * dirmngr/dns-cert.c (tor_mode): New global var. (enable_dns_tormode): New func. (get_dns_cert): Use DNS resolver at 8.8.8.8 in tor-mode. * dirmngr/server.c (cmd_dns_cert): If supported allow DNS requests.
2015-10-06dirmngr: Improve DNS code to retrieve arbitrary records.Werner Koch1-3/+52
* dirmngr/dns-cert.c (get_dns_cert): Add hack to retrieve arbitrary resource records. * dirmngr/dns-cert.h (DNS_CERTTYPE_RRBASE): New. (DNS_CERTTYPE_RR61): New. -- This has been tested with ADNS on Unix and with the standard resolver. Because ADNS works it should also work on Windows. Signed-off-by: Werner Koch <[email protected]>
2015-10-06dirmngr: Change DNS code to make additions easier.Werner Koch1-64/+66
* dirmngr/dns-cert.c (get_dns_cert) [!USE_ADNS]: Change loop to allow adding more resource types.
2015-04-23gpg: Move all DNS access to Dirmngr.Werner Koch1-9/+23
* common/dns-cert.h: Move to ../dirmngr/. * common/dns-cert.c: Move to ../dirmngr/. Change args to return the key as a buffer. * common/t-dns-cert.c: Move to ../dirmngr/. * common/pka.c, common/pka.h, common/t-pka.c: Remove. * dirmngr/server.c (data_line_cookie_write): Factor code out to data_line_write and make it a wrapper for that. (data_line_write): New. (cmd_dns_cert): New. (register_commands): Register new command. * g10/Makefile.am (LDADD): Remove DNSLIBS. * g10/call-dirmngr.c (dns_cert_parm_s): New. (dns_cert_data_cb, dns_cert_status_cb): New. (gpg_dirmngr_dns_cert): New. (gpg_dirmngr_get_pka): New. * g10/gpgv.c (gpg_dirmngr_get_pka): New dummy function. * g10/keyserver.c (keyserver_import_cert): Replace get_dns_cert by gpg_dirmngr_dns_cert. (keyserver_import_pka): Replace get_pka_info by gpg_dirmngr_get_pka. * g10/mainproc.c: Include call-dirmngr.h. (pka_uri_from_sig): Add CTX arg. Replace get_pka_info by gpg_dirmngr_get_pka. -- With this patch gpg does not do any network access itself but uses dirmngr for that. Note that we need to keep linking to NETLIBS due to the logging code and because we need TCP for our socket emulation under Windows. Probably also required for Solaris etc. Signed-off-by: Werner Koch <[email protected]>
2015-02-25gpg: Switch to a hash and CERT record based PKA system.Werner Koch1-6/+9
* common/dns-cert.c (get_dns_cert): Make r_key optional. * common/pka.c: Rewrite for the new hash based lookup. * common/t-pka.c: New. * configure.ac: Remove option --disable-dns-pka. (USE_DNS_PKA): Remove ac_define. * g10/getkey.c (parse_auto_key_locate): Always include PKA. -- Note that although PKA is now always build, it will only work if support for looking up via DNS has not been disabled. The new PKA only works with the IPGP DNS certtype and shall be used only to retrieve the fingerprint and optional the key for the first time. Due to the security problems with DNSSEC the former assumption to validate the key using DNSSEC is not anymore justified. Instead an additional layer (e.g. Trust-On-First-Use) needs to be implemented to track change to the key. Having a solid way of getting a key matching a mail address is however a must have. More work needs to go into a redefinition of the --verify-options pka-lookups and pka-trust-increase. The auto-key-locate mechanism should also be able to continue key fetching with another methods once the fingerprint has been retrieved with PKA. Signed-off-by: Werner Koch <[email protected]>
2015-02-25common: Allow requesting a specific certtype with get_dns_cert()Werner Koch1-21/+15
* common/dns-cert.c (get_dns_cert): Add arg want_certtype. Change all callers. (CERTTYPE_): Move constants to ... * common/dns-cert.h: here as DNS_CERTTYPE_. Signed-off-by: Werner Koch <[email protected]>
2015-02-23common: Fix regression due to commit 2183683b.Werner Koch1-1/+0
* common/dns-cert.c (get_dns_cert): Remove cruft. -- GnuPG-bug-id: 1850 Signed-off-by: Werner Koch <[email protected]>
2015-02-11Use inline functions to convert buffer data to scalars.Werner Koch1-9/+11
* common/host2net.h (buf16_to_ulong, buf16_to_uint): New. (buf16_to_ushort, buf16_to_u16): New. (buf32_to_size_t, buf32_to_ulong, buf32_to_uint, buf32_to_u32): New. -- Commit 91b826a38880fd8a989318585eb502582636ddd8 was not enough to avoid all sign extension on shift problems. Hanno Böck found a case with an invalid read due to this problem. To fix that once and for all almost all uses of "<< 24" and "<< 8" are changed by this patch to use an inline function from host2net.h. Signed-off-by: Werner Koch <[email protected]>
2014-11-07build: Improve test for ADNSWerner Koch1-3/+0
* configure.ac <adns>: Use adns_free as probe function for libadns. (HAVE_ADNS_FREE): Remove bogus tests to set this and remove the macro. (ADNSLIBS): Do not ac_subst - it is only used within configure. -- adns_free is required on Windows anyway (for robustness reasons) and it has been around for so long now that we do not need a separate test. An upstream adns 1.5 has meanwhile been release but I doubt that this has the required Windows code - and it is not libtool based anyway.
2014-03-07w32: Include winsock2.h to silence warnings.Werner Koch1-0/+3
2014-02-10tests: Avoid segv if dns cert lookup is not configured.Werner Koch1-4/+4
* common/dns-cert.c (get_dns_cert) [!USE_DNS_CERT]: Reset return args.
2013-08-01common: Fix a build error when using adns.Werner Koch1-4/+5
* common/dns-cert.c (get_dns_cert) [USE_ADNS]: Fix synatx error. -- (fixes commit 31f548a18aed729c05ea367f2d8a8104480430d5) Signed-off-by: Werner Koch <[email protected]>
2012-04-20Change license for some files in common to LGPLv3+/GPLv2+.Werner Koch1-5/+15
Having the LGPL on the common GnuPG code helps to share code between GnuPG and related projects (like GPGME and Libassuan). This is good for interoperability and to reduces bugs. * common/asshelp.c, common/asshelp.h, common/asshelp2.c, common/b64dec.c * common/b64enc.c, common/convert.c, common/dns-cert.c * common/dns-cert.h common/exechelp-posix.c, common/exechelp-w32.c * common/exechelp-w32ce.c, common/exechelp.h, common/get-passphrase.c * common/get-passphrase.h, common/gettime.c, common/gpgrlhelp.c * common/helpfile.c, common/homedir.c, common/http.c, common/http.h * common/i18n.c, common/init.c, common/init.h, common/iobuf.c * common/iobuf.h, common/localename.c, common/membuf.c, common/membuf.h * common/miscellaneous.c, common/openpgp-oid.c, common/openpgpdefs.h * common/percent.c, common/pka.c, common/pka.h, common/session-env.c * common/session-env.h, common/sexp-parse.h, common/sexputil.c * common/signal.c, common/srv.c, common/srv.h, common/ssh-utils.c * common/ssh-utils.h, common/sysutils.c, common/sysutils.h * common/tlv.c, common/tlv.h, common/ttyio.c, common/ttyio.h * common/userids.c, common/userids.h, common/xasprintf.c: Change license to LGPLv3+/GPLv2+/
2012-02-07common: Replace macro based function calls by using DEFAULT_ERRSOURCE.Werner Koch1-18/+21
* common/dns-cert.h (get_dns_cert): Remove macro. * common/dns-cert.c (_get_dns_cert): Rename to get_dns_cert. Replace arg ERRSOURCE by global DEFAULT_ERRSOURCE. * common/http.h (http_parse_uri, http_raw_connect, http_open) (http_open_document, http_wait_response): Remove macros. * common/http.c (_http_parse_uri, _http_raw_connect, _http_open) (_http_open_document, _http_wait_response): Remove underscore from symbols. Replace args ERRSOURCE by global DEFAULT_ERRSOURCE. * common/ssh-utils.h (ssh_get_fingerprint) (ssh_get_fingerprint_string): Remove macros. * common/ssh-utils.h (_ssh_get_fingerprint) (_ssh_get_fingerprint_string): Remove underscore from symbols. Replace args ERRSOURCE by global DEFAULT_ERRSOURCE. * common/tlv.h (parse_ber_header, parse_sexp): Remove macros. * common/tlv.c: Include util.h. (_parse_ber_header, _parse_sexp): Remove underscore from symbols. Replace args ERRSOURCE by global DEFAULT_ERRSOURCE.
2011-11-30Rewrite dns-cert.c to not use the gpg-only iobuf stuff.Werner Koch1-72/+123
* common/dns-cert.c: Remove iobuf.h. (get_dns_cert): Rename to _get_dns_cert. Remove MAX_SIZE arg. Change iobuf arg to a estream-t. Rewrite function to make use of estream instead of iobuf. Require all parameters. Return an gpg_error_t error instead of the type. Add arg ERRSOURCE. * common/dns-cert.h (get_dns_cert): New macro to pass the error source to _gpg_dns_cert. * common/t-dns-cert.c (main): Adjust for changes in get_dns_cert. * g10/keyserver.c (keyserver_import_cert): Ditto. * doc/gpg.texi (GPG Configuration Options): Remove max-cert-size.
2011-11-30dns-cert.c: Use constants for better readability.Werner Koch1-8/+21
2011-11-30Re-indented dns-cert.cWerner Koch1-121/+122
2011-11-30Use separate test module for dns-cert.c.Werner Koch1-60/+2
* dns-cert.c (get_dns_cert): Factor test code out to ... * t-dns-cert.c: new file.
2011-02-04Nuked almost all trailing white space.post-nuke-of-trailing-wsWerner Koch1-5/+5
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.
2010-03-22More chnages to use estream. Add a way to replace the standardWerner Koch1-0/+7
descriptors.
2009-12-08Unification of the search descriptor usage.Werner Koch1-1/+1
2009-12-08Support CERT records via ADNSWerner Koch1-9/+107
2007-07-04Changed to GPLv3.Werner Koch1-4/+2
Removed intl/.
2006-06-16Added missing filesWerner Koch1-0/+246