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Commit Graph

4811 Commits

Author SHA1 Message Date
Werner Koch
e73edfb175 gpg: Fix memleak in signature verification of bogus keys.
* g10/mainproc.c (check_sig_and_print): Factor common code out to ...
(print_good_bad_signature): here.
--

P was not released if the key had no user id.
2014-05-07 14:36:34 +02:00
Werner Koch
e5279c85a0 gpg: Fix indendation of check_sig_and_print.
--
2014-05-07 14:08:42 +02:00
Werner Koch
09055aa0f7 gpg: Mark experimental algorithms in the key listing.
* g10/keylist.c (list_keyblock_print): Remove duplicate curve name.
Print a note for experimental algorithms.
* g10/misc.c (print_pubkey_algo_note): Fix warning message.
2014-05-07 13:50:00 +02:00
Werner Koch
8fee6c1ce6 gpg: Finish experimental support for Ed25519.
* agent/cvt-openpgp.c (try_do_unprotect_arg_s): Add field "curve".
(get_keygrip): Add and use arg CURVE.
(convert_secret_key): Ditto.
(convert_transfer_key): Ditto.
(get_npkey_nskey): New.
(prepare_unprotect): Replace gcrypt functions by
get_npkey_nskey.  Allow opaque MPIs.
(do_unprotect): Use CURVE instead of parameters.
(convert_from_openpgp_main): Ditto.
(convert_to_openpgp):  Simplify.
* g10/import.c (one_mpi_from_pkey): Remove.
(transfer_secret_keys): Rewrite to use the curve instead of the
parameters.
* g10/parse-packet.c (parse_key): Mark protected MPIs with USER1 flag.

* common/openpgp-oid.c (openpgp_curve_to_oid): Allow the use of
 "NIST P-256" et al.
* g10/keygen.c (ask_curve): Add arg ALGO.
(generate_keypair): Rewrite the ECC key logic.

* tests/openpgp/ecc.test: Provide the "ecc" passphrase.
2014-05-07 13:27:43 +02:00
Werner Koch
bdb9c2b314 kbx: Add experimental support for EDDSA.
* kbx/keybox-openpgp.c (parse_key): Use algo constants and add
experimental support for EdDSA.
2014-05-07 12:39:43 +02:00
Werner Koch
a63ed98758 agent: Remove greeting message.
* agent/gpg-agent.c (main): Remove greeting.  Make --no-greeting a
dummy.
2014-05-07 08:51:11 +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
ea0f5481f0 http: Add reference counting to the session object.
* common/http.c (http_session_t): Add field "refcount".
(_my_socket_new, _my_socket_ref, _my_socket_unref): Add debug code.
(send_request, my_npth_read, my_npth_write): Use SOCK object for the
transport ptr.
(http_session_release): Factor all code out to ...
(session_unref): here.  Deref SOCK.
(http_session_new): Init refcount and transport ptr.
(http_session_ref): New.  Ref and unref all assignments.
--

Having the reference counted session objects makes it easier for the
application to pass around only an estream.  Without that the
application would need to implement an es_onclose machinery for the
session object.
2014-05-05 16:06:42 +02:00
Werner Koch
0e59195642 http: Add HTTP_FLAG_FORCE_TLS and http_get_tls_info.
* common/http.c (http_parse_uri): Factor code out to ...
(parse_uri): here.  Add arg FORCE_TLS.
(do_parse_uri): Ditto.  Implement flag.
(http_get_tls_info): New.
(http_register_tls_ca): Allow clearing of the list.
(send_request): Use a default verification function.
* common/http.h (HTTP_FLAG_FORCE_TLS): New.
* common/t-http.c (main): Add several command line options.
2014-05-02 17:28:02 +02:00
Werner Koch
2def230231 common: Fix test for openpgp_oid_is_ed25519.
* common/t-openpgp-oid.c (test_openpgp_oid_is_ed25519): Add correct
value.
2014-05-02 14:07:03 +02:00
Werner Koch
8412a5825c http: Revamp TLS API.
* configure.ac (NEED_GNUTLS_VERSION): New.
(HTTP_USE_GNUTLS, LIBGNUTLS_CFLAGS, LIBGNUTLS_LIBS): New ac_subst.

* common/http.h (http_session_t): New.
* common/http.c: Remove compatibility for gnutls < 3.0.
(http_session_s): New.
(cookie_s): Replace gnutls_session_t by http_session_t.
(tls_callback, tls_ca_certlist): New variables.
(my_socket_unref): Add preclose args.
(my_npth_read, my_npth_write): New.
(make_header_line): Fix bug using int* instead of char*.
(http_register_tls_callback): New.
(http_register_tls_ca): New.
(http_session_new): New.
(http_session_release): New.
(http_get_header_names): New.
(escape_data): Add hack to escape in forms mode.
(send_request) [HTTP_USE_GNUTLS]: Support SNI.
(send_request) [HTTP_USE_GNUTLS]: Fix use of make_header_line.
(send_gnutls_bye): New.
(cookie_close): Make use of preclose feature.
(http_verify_server_credentials): New.
(main) [TEST]: Remove test code.
* common/t-http.c: New.
* common/tls-ca.pem: New.
* common/Makefile.am (tls_sources): New. Move http code to here.
(libcommontls_a_SOURCES): New.
(libcommontlsnpth_a_SOURCES): New.
(EXTRA_DIST): Add tls-ca.pem
(module_maint_tests): Add t-http.
(t_http_SOURCES, t_http_CFLAGS, t_http_LDADD): New.

* dirmngr/Makefile.am (dirmngr_LDADD): Add libcommontlsnpth.
--

This new TLS API for http.c is much more flexible than the crude old
hack.
2014-05-02 11:19:25 +02:00
Werner Koch
84289e85c7 common: Cleanup the use of USE_NPTH and HAVE_NPTH macros.
* configure.ac (HAVE_NPTH): New ac_define.
* common/estream.c: Use USE_NPTH instead of HAVE_NPTH.
* common/http.c: Ditto.  Replace remaining calls to pth by npth calls.
(connect_server): Remove useless _().
* common/exechelp-posix.c, common/exechelp-w32.c
* common/exechelp-w32ce.c: Use HAVE_PTH to include npth.h.
* common/init.c (_init_common_subsystems): Remove call to pth_init.
* common/sysutils.c (gnupg_sleep): Use npth_sleep.
* scd/ccid-driver.c (my_sleep): Ditto.
--

USE_NPTH is used in case were we may build with and without nPth.  The
missing definition HAVE_NPTH didn't allowed us to build outher sources
with nPTh support.
2014-05-02 08:22:38 +02:00
Werner Koch
8416c875a7 estream: Implement "samethread" mode keyword.
* src/estream.c (estream_internal): Add field SAMETHREAD.
(init_stream_lock, lock_stream, trylock_stream, unlock_stream): Use it.
(parse_mode): Add arg SAMETHREAD and parse that keyword.
(es_initialize): Rename to ...
(init_stream_obj): this.  Add arg SAMETHREAD.
(es_create): Add arg SAMETHREAD.  Call init_stream_lock after
init_stream_obj.
(doreadline): Call es_create with samethread flag.
(es_fopen, es_mopen, es_fopenmem, es_fopencookie, do_fdopen)
(do_fpopen, do_w32open): Implement "samethread" keyword.
(es_freopen): Take samthread flag from old stream.
(es_tmpfile): Call es)_create w/o samethread.
--

Note: Unfortunately es_tmpfile has no mode arg so that we can't use
samethread.
2014-04-30 21:14:28 +02:00
Werner Koch
ecea94461e estream: Fix deadlock in es_fileno.
* src/estream.c (es_fileno_unlocked): Call the unlocked functions.
2014-04-30 21:14:28 +02:00
Werner Koch
aeb81727c7 estream: Add debug code to the lock functions.
* common/estream.c (dbg_lock_0, dbg_lock_1, dbg_lock_1): New.
2014-04-30 21:14:28 +02:00
Werner Koch
39e91a5f0a estream: Replace locking macros by functions.
* common/estream.c: Replace most macros.
--

The macros were too hard to read and actually blew up the source.
2014-04-30 21:14:28 +02:00
Werner Koch
7296ccf3d5 estream: Migrate from Pth to nPth.
--

Actually the mutex stuff was never used since we switched to nPth.
2014-04-30 21:14:28 +02:00
Werner Koch
7adeae3ba3 gpg: Minor doc enhancement
--
2014-04-30 21:14:28 +02:00
NIIBE Yutaka
21dab64030 ECC Fixes.
* agent/cvt-openpgp.c (get_keygrip, convert_secret_key)
(convert_transfer_key): Follow newer (>= 1.6) libgcrypt API, which
does not distinguish the detail.
(do_unprotect, convert_from_openpgp_main): Don't call
map_pk_openpgp_to_gcry, as it's the value of libgcrypt API already and
not the value defined by OpenPGP.
(convert_to_openpgp): It's "ecc".
* agent/gpg-agent.c (map_pk_openpgp_to_gcry): Remove.
* g10/call-agent.c (agent_pkdecrypt): Fix off-by-one error.
* g10/pubkey-enc.c (get_it): Fix swapping the fields error.
2014-04-28 10:36:16 +09:00
Werner Koch
fdd938a5bb gpg: Pass --homedir to gpg-agent.
* agent/gpg-agent.c (main): Make sure homedir is absolute.
* common/asshelp.c (lock_spawning): Create lock file with an absolute
name.
(start_new_gpg_agent): Use an absolute name for the socket and pass
option --homedir to the agent.
(start_new_dirmngr): Use an absolute name for the --homedir.
--

This patch makes gpg's --homedir option behave again like in older
versions.  This is done by starting a new agent for each different
home directory.  Note that this assumes --use-standard-socket is used
which is the default for 2.1.
2014-04-22 16:59:06 +02:00
Werner Koch
71a54313ad common: Add functions make_absfilename and make_absfilename_try.
* common/stringhelp.c (do_make_filename): Add modes 2 and 3.
(make_absfilename): New.
(make_absfilename_try): New.
2014-04-22 15:58:33 +02:00
Werner Koch
1a87edab66 common: Add function gnupg_getcwd.
* tools/gpg-connect-agent.c (gnu_getcwd): Move to ...
* common/sysutils.c (gnupg_getcwd): .. here.
* tools/gpg-connect-agent.c (get_var_ext): Use gnupg_getcwd.
2014-04-22 15:02:05 +02:00
Werner Koch
ffa39be5eb gpg: Print a warning if GKR has hijacked gpg-agent.
* g10/call-agent.c (check_hijacking): New.
(start_agent): Call it.
(membuf_data_cb, default_inq_cb): Move more to the top.
--

Note that GUIs may use the gpg status line

[GNUPG:] ERROR check_hijacking 33554509

to detect this and print an appropriate warning.
2014-04-22 12:50:15 +02:00
Werner Koch
e184a11f94 gpg: New %U expando for the photo viewer.
* g10/photoid.c (show_photos): Set namehash.
* g10/misc.c (pct_expando): Add "%U" expando.
--

This makes is possible to extract all photos ids from a key to
different files.
2014-04-17 21:44:09 +02:00
Werner Koch
b8a91ebf46 common: Add z-base-32 encoder.
* common/zb32.c: New.
* common/t-zb32.c: New.
* common/Makefile.am (common_sources): Add zb82.c
(module_tests): Add t-zb32.
2014-04-17 21:09:10 +02:00
Werner Koch
a34afa8f20 Two minor code cleanups and one NULL deref on error fix.
* common/estream.c (es_freopen): Remove useless check for STREAM.
* kbx/keybox-blob.c (_keybox_create_x509_blob): Remove useless check
for BLOB.
* tools/sockprox.c (run_proxy): Do not fclose(NULL).
--

Found by Hans-Christoph Steiner with cppcheck.
2014-04-16 10:18:17 +02:00
Werner Koch
db3b528239 gpg: Re-enable secret key deletion.
* g10/call-agent.c (agent_delete_key): New.
* g10/keydb.h (FORMAT_KEYDESC_DELKEY): New.
* g10/passphrase.c (gpg_format_keydesc): Support new format.
* g10/delkey.c (do_delete_key): Add secret key deletion.
2014-04-15 19:44:50 +02:00
Werner Koch
d25d00b89e gpg: Re-indent a file.
* g10/delkey.c: Re-indent.
(do_delete_key, delete_keys): Change return type top gpg_error_t.
2014-04-15 19:44:48 +02:00
Werner Koch
c4d983239a gpg: Fix regression in secret key export.
* agent/cvt-openpgp.c (convert_to_openpgp): Fix use
gcry_sexp_extract_param.
* g10/export.c (do_export_stream): Provide a proper prompt to the
agent.
--

NB: The export needs more work, in particular the ECC algorithms.
2014-04-15 19:44:42 +02:00
Werner Koch
e549799db6 gpg: Change pinentry prompt to talk about "secret key".
* g10/passphrase.c (gpg_format_keydesc): Add mode 2.  Change strings.
* g10/keydb.h (FORMAT_KEYDESC_NORMAL, FORMAT_KEYDESC_IMPORT)
(FORMAT_KEYDESC_EXPORT): New.  Use them for clarity.
--

The use of the term "certificate" was more confusing than helpful.
2014-04-15 19:29:57 +02:00
Werner Koch
e3a4ff89a0 agent: Add command DELETE_KEY.
* agent/command.c (cmd_delete_key): New.
* agent/findkey.c (modify_description): Add '%C' feature.
(remove_key_file): New.
(agent_delete_key): New.
* agent/command-ssh.c (search_control_file): Make arg R_DISABLE
optional.

* configure.ac: Require libgpg-error 1.13.
2014-04-15 17:03:54 +02:00
NIIBE Yutaka
3132bd90dc scd: EdDSA support.
* scd/app-openpgp.c (KEY_TYPE_EDDSA, CURVE_ED25519): New.
(struct app_local_s): Add eddsa.
(get_algo_byte, store_fpr): Support KEY_TYPE_EDDSA.
(get_ecc_key_parameters, get_curve_name): Support CURVE_ED25519.
(send_key_attr, get_public_key): Support KEY_TYPE_EDDSA.
(build_ecc_privkey_template): Rename as it supports both of
ECDSA and EdDSA.
(ecc_writekey): Rename.  Support CURVE_ED25519, too.
(do_writekey): Follow the change of ecc_writekey.
(do_auth): Support KEY_TYPE_EDDSA.
(parse_ecc_curve): Support CURVE_ED25519.  Bug fix for other curves.
(parse_algorithm_attribute): Bug fix for ECDH.  Support EdDSA.
2014-04-09 09:30:19 +09:00
Werner Koch
db85feceaf dirmngr: Fix compiler warning.
* common/mischelp.h (JNLIB_GCC_HAVE_PUSH_PRAGMA): New.
* dirmngr/dirmngr.c (handle_tick): Factor time check out to ...
(time_for_housekeeping_p): new.
--

I am not sure whether that y2038 hack is really useful but it might
make me smile in my retirement.
2014-04-08 17:06:17 +02:00
Werner Koch
b4cf4686f7 gpgconf: Add command --launch.
* tools/gpgconf.c: Add command --launch.
* tools/gpgconf-comp.c (gc_component_launch): New.

Signed-off-by: Werner Koch <wk@gnupg.org>
2014-04-08 15:57:14 +02:00
Werner Koch
36dfc37e43 scd: Silent compiler warnings about unused variables.
* scd/app-openpgp.c (build_ecdsa_privkey_template): Mark unused arg.
(ecdh_writekey): Mark unused args.

Signed-off-by: Werner Koch <wk@gnupg.org>
2014-04-08 10:02:08 +02:00
NIIBE Yutaka
5ff6d0c25e agent: Support EdDSA.
* agent/pksign.c (agent_pksign_do): Handle EdDSA signature.
2014-04-08 12:15:20 +09:00
NIIBE Yutaka
40c3b0741e g10: EdDSA support.
* g10/keyid.c (keygrip_from_pk): Compute keygrip of EdDSA key.
* g10/keygen.c (generate_subkeypair): Ed25519 is for EdDSA.
* common/openpgp-oid.c (oid_ed25519): Update.
2014-04-08 11:59:39 +09:00
NIIBE Yutaka
513c67b746 agent: EdDSA support for SSH.
* agent/command-ssh.c (ssh_signature_encoder_eddsa): Signature is
two 32-byte opaque data which should not be interpreted as number.
2014-04-04 16:33:00 +09:00
Werner Koch
b6786cc3ec gpg: Add commands --quick-sign-key and --quick-lsign-key.
* g10/gpg.c (main): Add commands --quick-sign-key and
--quick-lsign-key.
* g10/keyedit.c (sign_uids): Add args FP and QUICK.
(keyedit_quick_sign): New.
(show_key_with_all_names): Add arg NOWARN.
2014-03-27 16:33:40 +01:00
Werner Koch
4f50ec98dd Change some keyedit functions to allow printing to arbitrary streams.
* common/ttyio.c (tty_print_string): Add optional arg FP. Change all
callers.
(tty_print_utf8_string2): Ditto.
* g10/keyedit.c (show_prefs):  Ditto.
(show_key_with_all_names_colon): Ditto.
(show_names): Ditto.
* g10/keylist.c (print_revokers): Ditto.
(print_fingerprint): Ditto.
2014-03-27 12:59:55 +01:00
Werner Koch
5c2a50cdc9 agent: Replace es_mopen by es_fopenmem for ssh.
* agent/command-ssh.c (ssh_read_key_public_from_blob): Use
es_fopenmem.
(ssh_handler_request_identities): Ditto.
(ssh_request_process): Ditto.
--

es_fopenmem is easier to understand than the more general function
es_mopen.  Thus we better use the former for clarity.
2014-03-23 13:42:53 +01:00
Werner Koch
fc3e70c113 agent: Put ssh key type as comment into sshcontrol.
* agent/command-ssh.c (ssh_key_type_spec): Add field name.
(ssh_key_types): Add human readable names.
(add_control_entry): Add arg SPEC and print key type as comment.
(ssh_identity_register): Add arg SPEC.
(ssh_handler_add_identity): Add var SPEC and pass ssh_receive_key.
2014-03-22 21:28:35 +01:00
Werner Koch
072432883e agent: Support the Ed25519 signature algorithm for ssh.
* agent/command-ssh.c (SPEC_FLAG_IS_EdDSA): New.
(ssh_key_types): Add entry for ssh-ed25519.
(ssh_identifier_from_curve_name): Move to the top.
(stream_read_skip): New.
(stream_read_blob): New.
(ssh_signature_encoder_rsa): Replace MPIS array by an s-exp and move
the s-exp parsing to here.
(ssh_signature_encoder_dsa): Ditto.
(ssh_signature_encoder_ecdsa): Ditto.
(ssh_signature_encoder_eddsa): New.
(sexp_key_construct): Rewrite.
(ssh_key_extract): Rename to ...
(ssh_key_to_blob): .. this and rewrite most of it.
(ssh_receive_key): Add case for EdDSA.
(ssh_convert_key_to_blob, key_secret_to_public): Remove.
(ssh_send_key_public): Rewrite.
(ssh_handler_request_identities): Simplify.
(data_sign): Add rename args.  Add new args HASH and HASHLEN.  Make
use of es_fopenmen and es_fclose_snatch.  Remove parsing into MPIs
which is now doe in the sgnature encoder functions.
(ssh_handler_sign_request): Take care of Ed25519.
(ssh_key_extract_comment): Rewrite using gcry_sexp_nth_string.
--

To make the code easier readable most of the Ed25591 work has been
done using a new explicit code path.  Warning: Libgcrypt 1.6.1 uses a
non optimized implementation for Ed25519 and timing attacks might be
possible.

While working on the code I realized that it could need more rework;
it is at some places quite baroque and more complicated than needed.
Given that we require Libgcrypt 1.6 anyway, we should make more use of
modern Libgcrypt functions.
2014-03-22 21:12:46 +01:00
Werner Koch
a77ed0f266 agent: Cleanups to prepare implementation of Ed25519.
* agent/cvt-openpgp.c: Remove.
(convert_to_openpgp): Use gcry_sexp_extract_param.
* agent/findkey.c (is_eddsa): New.
(agent_is_dsa_key, agent_is_eddsa_key): Check whether ecc means EdDSA.
* agent/pksign.c (agent_pksign_do): Add args OVERRIDEDATA and
OVERRIDEDATALEN.

* common/ssh-utils.c (is_eddsa): New.
(get_fingerprint): Take care or EdDSA.
2014-03-22 20:52:03 +01:00
Werner Koch
6376227a31 tools: Fix NULL deref in gpg-connect-agent.
* tools/gpg-connect-agent.c (handle_inquire): Do not pass NULL to
strlen.
2014-03-18 16:49:38 +01:00
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
04e304278c common: New function elapsed_time_string.
* common/gettime.c (elapsed_time_string): New.
2014-03-18 11:02:50 +01:00
Werner Koch
f90cfe6b66 gpg: Reject signatures made with MD5.
* g10/gpg.c: Add option --allow-weak-digest-algos.
(main): Set option also in PGP2 mode.
* g10/options.h (struct opt): Add flags.allow_weak_digest_algos.
* g10/sig-check.c (do_check): Reject MD5 signatures.
* tests/openpgp/defs.inc: Add allow_weak_digest_algos to gpg.conf.
2014-03-17 18:14:23 +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