metze/heimdal/wip.git
4 years agolorikeet-heimdal: Include Samba commit in cherry-picked patches
Andrew Bartlett [Wed, 5 Sep 2018 01:45:04 +0000 (13:45 +1200)]
lorikeet-heimdal: Include Samba commit in cherry-picked patches

Signed-off-by: Andrew Bartlett <abartlet@samba.org>
4 years agolorikeet-heimdal: improve apply_heimdal.sh
Andrew Bartlett [Fri, 21 Feb 2014 02:58:20 +0000 (15:58 +1300)]
lorikeet-heimdal: improve apply_heimdal.sh

4 years agolorikeet-heimdal: specify hash to heimdal import, rather than using the date
Andrew Bartlett [Wed, 19 Feb 2014 09:06:57 +0000 (22:06 +1300)]
lorikeet-heimdal: specify hash to heimdal import, rather than using the date

4 years agolorikeet-heimdal: remove obsolete script for importing from svn.
Jelmer Vernooij [Tue, 21 Dec 2010 14:17:30 +0000 (15:17 +0100)]
lorikeet-heimdal: remove obsolete script for importing from svn.

4 years agolorikeet-heimdal: add IMPORT-HEIMDAL.sh
Stefan Metzmacher [Fri, 22 Aug 2008 09:57:36 +0000 (11:57 +0200)]
lorikeet-heimdal: add IMPORT-HEIMDAL.sh

I think this can be removed...

metze

4 years agolorikeet-heimdal: rebase-lorikeet: Explicitly use bash.
Jelmer Vernooij [Fri, 26 Oct 2012 14:34:47 +0000 (06:34 -0800)]
lorikeet-heimdal: rebase-lorikeet: Explicitly use bash.

Standard sh doesn't have pushd/popd.

4 years agolorikeet-heimdal: Add a new script to help merging patches from Samba4 to heimdal
Andrew Tridgell [Wed, 1 Dec 2010 02:00:08 +0000 (13:00 +1100)]
lorikeet-heimdal: Add a new script to help merging patches from Samba4 to heimdal

4 years agolorikeet-heimdal: improve import-lorikeet.sh for the toplevel build
Stefan Metzmacher [Thu, 14 Jul 2011 14:24:37 +0000 (16:24 +0200)]
lorikeet-heimdal: improve import-lorikeet.sh for the toplevel build

metze

4 years agolorikeet-heimdal: Improve the heimdal import scripts
Andrew Bartlett [Tue, 30 Nov 2010 23:54:49 +0000 (10:54 +1100)]
lorikeet-heimdal: Improve the heimdal import scripts

4 years agolorikeet-heimdal: add scipts to rebase and import the latest version into samba4
Stefan Metzmacher [Fri, 27 Mar 2009 06:31:11 +0000 (07:31 +0100)]
lorikeet-heimdal: add scipts to rebase and import the latest version into samba4

If you use this scripts, read them! :-)

metze

4 years agolorikeet-heimdal: add wrap_ex_ntlm.diff from abartlet
Stefan Metzmacher [Fri, 22 Aug 2008 09:58:18 +0000 (11:58 +0200)]
lorikeet-heimdal: add wrap_ex_ntlm.diff from abartlet

metze

4 years agolorikeet-heimdal: add HEIMDAL-LICENCE.txt
Stefan Metzmacher [Fri, 22 Aug 2008 09:57:06 +0000 (11:57 +0200)]
lorikeet-heimdal: add HEIMDAL-LICENCE.txt

metze

4 years agolorikeet-heimdal: camellia-ntt GPLv2+ license
Stefan Metzmacher [Fri, 22 Aug 2008 09:43:50 +0000 (11:43 +0200)]
lorikeet-heimdal: camellia-ntt GPLv2+ license

metze

4 years agolorikeet-heimdal: autogen.sh modifications
Stefan Metzmacher [Fri, 22 Aug 2008 09:42:21 +0000 (11:42 +0200)]
lorikeet-heimdal: autogen.sh modifications

metze

4 years agohcrypto: Fix more warnings (rsa-ltm)
Nicolas Williams [Mon, 27 Apr 2020 22:56:53 +0000 (17:56 -0500)]
hcrypto: Fix more warnings (rsa-ltm)

4 years agogss: unconditionally set certain flags in SAnon ISC
Luke Howard [Mon, 27 Apr 2020 21:38:31 +0000 (07:38 +1000)]
gss: unconditionally set certain flags in SAnon ISC

SAnon unconditionally sets the replay, sequence, confidentiality, and integrity
flags on the acceptor; do so on the initiator as well. Some indentation
cleanups are also included in this commit.

4 years agohcrypto: Fix leaks in test_rsa.c
Nicolas Williams [Mon, 27 Apr 2020 16:07:29 +0000 (11:07 -0500)]
hcrypto: Fix leaks in test_rsa.c

4 years agohcrypto: Better RSA key generation (ltm)
Nicolas Williams [Mon, 27 Apr 2020 03:10:39 +0000 (22:10 -0500)]
hcrypto: Better RSA key generation (ltm)

4 years agohcrypto: Fix warnings in LTM
Nicolas Williams [Sun, 26 Apr 2020 22:25:29 +0000 (17:25 -0500)]
hcrypto: Fix warnings in LTM

4 years agodoc: update to draft-howard-gss-sanon-13.txt
Luke Howard [Mon, 27 Apr 2020 12:38:19 +0000 (22:38 +1000)]
doc: update to draft-howard-gss-sanon-13.txt

4 years agogss: mask out SAnon req_flags after computing session key
Luke Howard [Mon, 27 Apr 2020 12:32:59 +0000 (22:32 +1000)]
gss: mask out SAnon req_flags after computing session key

In SAnon, the optional flags send in the initial context token are input into
the key derivation function. Mask out the flags we wish to ignore after (not
before) calling the key derivation function, as the initiator may not know
which flags we wish to ignore.

4 years agogss: fix signedness on is_initiator bitfield
Luke Howard [Mon, 27 Apr 2020 08:44:02 +0000 (18:44 +1000)]
gss: fix signedness on is_initiator bitfield

In SAnon:

The is_initiator bitfield must be unsigned to avoid undefined behaviour, as
there is only a single bit defined. Thanks to Nico Williams for explaining
this.

4 years agogss: update SAnon for draft-howard-gss-sanon-13
Luke Howard [Mon, 27 Apr 2020 04:52:10 +0000 (14:52 +1000)]
gss: update SAnon for draft-howard-gss-sanon-13

draft-howard-gss-sanon-13 will move extended (RFC4757) flags from the NegoEx
metadata to an optional component of the initial context token

4 years agogss: don't use mechglue private header in SPNEGO
Luke Howard [Mon, 27 Apr 2020 05:10:29 +0000 (15:10 +1000)]
gss: don't use mechglue private header in SPNEGO

Unbreak last commit, including mech_locl.h in SPNEGO appears to break Windows
builds

4 years agogss: initialize output parameters in NegoEx
Luke Howard [Mon, 27 Apr 2020 04:38:33 +0000 (14:38 +1000)]
gss: initialize output parameters in NegoEx

NegoEx failed to initialize output parameters in _gss_negoex_{init,accept}
which could lead it to crash if the underlying mechanism returned an error.

4 years agogss: initialize *minor in _gss_sanon_inquire_cred()
Luke Howard [Mon, 27 Apr 2020 01:15:49 +0000 (11:15 +1000)]
gss: initialize *minor in _gss_sanon_inquire_cred()

4 years agosanon: Fix flags and ctx export/import confusion
Nicolas Williams [Sun, 26 Apr 2020 05:53:29 +0000 (00:53 -0500)]
sanon: Fix flags and ctx export/import confusion

We were passing SANON flags to _gss_mg_import_rfc4121_context(), which
wants GSS flags.  Meanwhile, I broke gss_inquire_context() on imported
SAnon contexts when I did my review of SAnon.

This commit fixes both issues and removes SANON_FLAG_*, which were only
ever needed because of a flag to track whether a context was locally
initiated or accepted.  Now we use a separate int field of the sanon_ctx
to track whether a context was locally initiated.  Once an SAnon context
is fully established, we rely on gss_inquire_context() on the rfc4121
sub-context for all metadata that isn't the initiator and acceptor names
nor the mechanism OID.

4 years agokrb5: Fix warning in krb5_get_error_string()
Nicolas Williams [Sun, 26 Apr 2020 05:59:08 +0000 (00:59 -0500)]
krb5: Fix warning in krb5_get_error_string()

4 years agokrb5: Fix display_status() incorrect major status
Nicolas Williams [Sun, 26 Apr 2020 04:16:40 +0000 (23:16 -0500)]
krb5: Fix display_status() incorrect major status

4 years agogss: SAnon - the Simple Anonymous GSS-API mechanism
Luke Howard [Mon, 30 Dec 2019 10:07:04 +0000 (21:07 +1100)]
gss: SAnon - the Simple Anonymous GSS-API mechanism

Add support for SAnon, a simple key agreement protocol that provides no
authentication of initiator or acceptor using x25519 ECDH key exchange.
See doc/standardization/draft-howard-gss-sanon-xx.txt for a protocol
description.

4 years agohcrypto: Add X25519
Luke Howard [Mon, 30 Dec 2019 10:07:04 +0000 (21:07 +1100)]
hcrypto: Add X25519

The X25519 implementation comes from libsodium. Explicit copyright
notices have been added to each file as well as some portability changes
(e.g. align.h).

4 years agogss: Fix some test leaks
Nicolas Williams [Sat, 25 Apr 2020 22:19:25 +0000 (17:19 -0500)]
gss: Fix some test leaks

4 years agospnego: Also use mechglue names
Nicolas Williams [Sat, 25 Apr 2020 00:04:50 +0000 (19:04 -0500)]
spnego: Also use mechglue names

4 years agoRevert "travis: Use ccache to speed up builds"
Nicolas Williams [Sat, 25 Apr 2020 00:05:07 +0000 (19:05 -0500)]
Revert "travis: Use ccache to speed up builds"

This reverts commit 37dee9bbc3cefdbe772ef68881f54ac743fd8715, which did
not help speed up Travis-CI builds.

4 years agotravis: Use ccache to speed up builds
Nicolas Williams [Fri, 24 Apr 2020 22:38:02 +0000 (17:38 -0500)]
travis: Use ccache to speed up builds

4 years agotravis: Show valgrind output in log
Nicolas Williams [Fri, 24 Apr 2020 02:47:28 +0000 (21:47 -0500)]
travis: Show valgrind output in log

This might cause logs to get large.  We might need to post the logs to
some URI.

4 years agotravis: Allow CI config to make check-valgrind
Nicolas Williams [Fri, 24 Apr 2020 01:54:50 +0000 (20:54 -0500)]
travis: Allow CI config to make check-valgrind

Setting MAKE_CHECK_SUFFIX=-valgrind in the environment will cause Travis
to make check-valgrind.

4 years agokadmin: fix leak
Nicolas Williams [Fri, 24 Apr 2020 01:45:02 +0000 (20:45 -0500)]
kadmin: fix leak

4 years agoroken: fix valgrind leak noise
Nicolas Williams [Fri, 24 Apr 2020 01:44:32 +0000 (20:44 -0500)]
roken: fix valgrind leak noise

4 years agohx509: Fix hx509_context_free() leak
Nicolas Williams [Thu, 23 Apr 2020 23:31:14 +0000 (18:31 -0500)]
hx509: Fix hx509_context_free() leak

4 years agoMove error functions from krb5 to base
Nicolas Williams [Thu, 23 Apr 2020 19:30:42 +0000 (14:30 -0500)]
Move error functions from krb5 to base

4 years agoMove lib/krb5/error_string.c to lib/base/
Nicolas Williams [Thu, 23 Apr 2020 18:26:25 +0000 (13:26 -0500)]
Move lib/krb5/error_string.c to lib/base/

This commit contains only renames.

4 years agoMove KDC audit functionality to lib/base/
Nicolas Williams [Tue, 3 Mar 2020 21:24:46 +0000 (15:24 -0600)]
Move KDC audit functionality to lib/base/

4 years agohx509: Add hx509.conf support
Nicolas Williams [Tue, 3 Mar 2020 04:33:07 +0000 (22:33 -0600)]
hx509: Add hx509.conf support

Just like krb5.conf, but hx509.conf, with all the same default locations
on Windows, OS X, and elsewhere, and HX509_CONFIG as the environment
variable equivalent of KRB5_CONFIG.

4 years agoMove more config file code from krb5 to base
Nicolas Williams [Tue, 3 Mar 2020 04:26:17 +0000 (22:26 -0600)]
Move more config file code from krb5 to base

4 years agocom_err: make error_table_name() thread-safe
Nicolas Williams [Tue, 3 Mar 2020 21:28:54 +0000 (15:28 -0600)]
com_err: make error_table_name() thread-safe

4 years agogss: pass mechanism error tokens through SPNEGO
Luke Howard [Tue, 21 Apr 2020 23:35:14 +0000 (09:35 +1000)]
gss: pass mechanism error tokens through SPNEGO

Fix for issue #486 based on a patch by Nico Williams.

A GSS-API acceptor can return an error token to be sent to the initiator. Our
SPNEGO implementation discarded these when sending a SPNEGO reject response.
This patch fixes the SPNEGO acceptor to convey those in the SPNEGO response.

The SPNEGO initiator is also updated to not bail out early on receiving a
SPNEGO reject response from the acceptor, but instead pass the response token
(if any) to gss_init_sec_context(). A reject response with no response token
will continue to return an error.

4 years agohcrypto: trim number of trials in prime number generation
Luke Howard [Sun, 12 Apr 2020 10:39:16 +0000 (20:39 +1000)]
hcrypto: trim number of trials in prime number generation

Reduce the number of trials when generating RSA keys by calling
mp_prime_rabin_miller_trials() with the number of desired bits.

See libtom/libtommath#482.

4 years agohcrypto: make libtommath v1.2.0 work with Heimdal
Luke Howard [Sun, 12 Apr 2020 08:38:00 +0000 (18:38 +1000)]
hcrypto: make libtommath v1.2.0 work with Heimdal

4 years agohcrypto: import libtommath v1.2.0
Luke Howard [Sun, 12 Apr 2020 08:37:13 +0000 (18:37 +1000)]
hcrypto: import libtommath v1.2.0

4 years agoProperly implement neg_mechs & GM_USE_MG_CRED (fix)
Nicolas Williams [Wed, 22 Apr 2020 00:51:55 +0000 (19:51 -0500)]
Properly implement neg_mechs & GM_USE_MG_CRED (fix)

4 years agoBetter support for "non-standard" GSS mechs (fix)
Nicolas Williams [Wed, 22 Apr 2020 00:51:16 +0000 (19:51 -0500)]
Better support for "non-standard" GSS mechs (fix)

4 years agogss: remove gss_release_cred_by_mech()
Luke Howard [Sun, 19 Apr 2020 23:29:22 +0000 (09:29 +1000)]
gss: remove gss_release_cred_by_mech()

gss_release_cred_by_mech() was previously used by SPNEGO's implementation of
gss_set_neg_mechs(). This is now implemented in the mechanism glue. As we never
shipped gss_release_cred_by_mech(), it is safe to remove it and its exported
symbol.

4 years agoProperly implement neg_mechs & GM_USE_MG_CRED
Nicolas Williams [Sun, 19 Apr 2020 03:15:00 +0000 (22:15 -0500)]
Properly implement neg_mechs & GM_USE_MG_CRED

SPNEGO was already using union creds.  Now make the mechglue know about
it, delete all of the cred-related SPNEGO stubs that are now not called
(lib/gssapi/spnego/cred_stubs.c), and implement gss_get/set_neg_mechs()
by storing the OID set in the union cred.

This commit was essentially authored as much if not more by Luke Howard
<lukeh at padl.com> as much as by the listed author.

4 years agogss: intern OID before adding to OID set
Luke Howard [Tue, 21 Apr 2020 04:54:18 +0000 (14:54 +1000)]
gss: intern OID before adding to OID set

gss_add_oid_set_member() should according to RFC2744 add a copy of the OID to
the set; the current implementation just stored a pointer (which may not be
stable). As we have _gss_intern_oid(), call that before adding.

4 years agoAdd gss_duplicate_oid_set()
Nicolas Williams [Sun, 19 Apr 2020 02:32:45 +0000 (21:32 -0500)]
Add gss_duplicate_oid_set()

4 years agoBetter support for "non-standard" GSS mechs
Nicolas Williams [Fri, 17 Apr 2020 03:53:22 +0000 (22:53 -0500)]
Better support for "non-standard" GSS mechs

If an initial security context token doesn't have a standard header per
RFC2743 then try all mechanisms until one succeeds or all fail.

We still try to guess NTLMSSP, raw Kerberos, and SPNEGO, from tasting
the initial security context token.

4 years agogss: fix gss_decapsulate_token() return codes
Luke Howard [Fri, 17 Apr 2020 01:11:43 +0000 (11:11 +1000)]
gss: fix gss_decapsulate_token() return codes

gss_decapsulate_token() should return GSS_S_BAD_MECH if the mechanism did not
match the expected one, and GSS_S_DEFECTIVE_TOKEN if the token could not be
parsed for some other reason, rather than GSS_S_FAILURE in both cases

4 years agogss: GSS_KRB5_IMPORT_RFC4121_CONTEXT_X / _gss_mg_import_rfc4121_context()
Luke Howard [Tue, 14 Apr 2020 02:36:09 +0000 (12:36 +1000)]
gss: GSS_KRB5_IMPORT_RFC4121_CONTEXT_X / _gss_mg_import_rfc4121_context()

Add a new private interface (accessed through _gss_mg_import_rfc4121_context())
through which a skeletal krb5 mechanism context can be created, suitable for
RFC4121 message protection and PRF services.

4 years agogss: honor allocated_ctx in gss_{exchange,query}_meta_data
Luke Howard [Thu, 16 Apr 2020 07:20:43 +0000 (07:20 +0000)]
gss: honor allocated_ctx in gss_{exchange,query}_meta_data

The NegoEx gss_{exchange,query}_meta_data functions set allocated_ctx but never
did anything with it. Use it to determine whether we should free the context
handle on error.

4 years agogss: free user keytab before resolving system keytab
Luke Howard [Thu, 16 Apr 2020 07:19:35 +0000 (07:19 +0000)]
gss: free user keytab before resolving system keytab

get_client_keytab() leaked the user keytab if it resolved but we could not find
the client principal. Free it before trying the system keytab.

4 years agogss: don't leak client_cred in test_context
Luke Howard [Thu, 16 Apr 2020 07:13:16 +0000 (07:13 +0000)]
gss: don't leak client_cred in test_context

Don't leak client credential handle in test_context.

4 years agogss: allow source/target to be null on export/import
Luke Howard [Tue, 14 Apr 2020 02:34:44 +0000 (12:34 +1000)]
gss: allow source/target to be null on export/import

Allow the source and target names to be NULL when exporting or importing a
security context for the krb5 mechanism. This will be used in the future to
support skeletal contexts that only provide RFC4121 message protection
services.

4 years agogss: fix typo regression in setting minor_status
Luke Howard [Thu, 16 Apr 2020 00:44:04 +0000 (10:44 +1000)]
gss: fix typo regression in setting minor_status

_gss_secure_release_buffer_set() patch changed minor_status to 0, not
*minor_status as correct. No behavioural change as
_gss_secure_release_buffer_set() would have set it anyway, but obviously this
was unintentional.

4 years agoImprove coverage script a bit
Nicolas Williams [Wed, 15 Apr 2020 23:48:26 +0000 (18:48 -0500)]
Improve coverage script a bit

4 years agogss: use _gss_secure_release_buffer_[set]
Luke Howard [Wed, 15 Apr 2020 06:20:06 +0000 (16:20 +1000)]
gss: use _gss_secure_release_buffer_[set]

Use new helper APIs for securely zeroing and releasing buffers and buffer sets.

4 years agogss: add _gss_secure_release_buffer_set()
Luke Howard [Wed, 15 Apr 2020 06:11:42 +0000 (16:11 +1000)]
gss: add _gss_secure_release_buffer_set()

Add _gss_secure_release_buffer_set() helper function for zeroing buffer set
contents before release.

4 years agogss: add _gss_secure_release_buffer()
Luke Howard [Wed, 15 Apr 2020 05:59:01 +0000 (15:59 +1000)]
gss: add _gss_secure_release_buffer()

Add _gss_secure_release_buffer() helper function that zeros buffer

4 years agokrb5: allow NULL authenticator in krb5_auth_con_free()
Luke Howard [Tue, 14 Apr 2020 02:37:56 +0000 (12:37 +1000)]
krb5: allow NULL authenticator in krb5_auth_con_free()

When freeing an auth context, allow the authenticator to be NULL. Useful for
freeing partially allocated authentication context.

4 years agoFix Coveralls badge to master branch
Nicolas Williams [Wed, 15 Apr 2020 01:48:19 +0000 (20:48 -0500)]
Fix Coveralls badge to master branch

4 years agoRecover coverage data on more files
Nicolas Williams [Wed, 15 Apr 2020 00:23:39 +0000 (19:23 -0500)]
Recover coverage data on more files

4 years agokrb5: always zero elastic storage
Luke Howard [Tue, 14 Apr 2020 22:58:27 +0000 (08:58 +1000)]
krb5: always zero elastic storage

Elastic storage (returned from krb5_storage_emem()) often contains secret keys.
Ensure memory is zeroed on free using memset_s() rather than memset().

4 years agoAdd Coveralls badge to README.md
Nicolas Williams [Tue, 14 Apr 2020 22:03:05 +0000 (17:03 -0500)]
Add Coveralls badge to README.md

4 years agoSend coverage data from Travis to Coveralls
Nicolas Williams [Tue, 14 Apr 2020 10:04:00 +0000 (05:04 -0500)]
Send coverage data from Travis to Coveralls

4 years agokrb5: use memset_s() in krb5_free_keyblock_contents()
Luke Howard [Tue, 14 Apr 2020 10:21:09 +0000 (20:21 +1000)]
krb5: use memset_s() in krb5_free_keyblock_contents()

krb5_free_keyblock_contents() should use memset_s() to ensure that the key is
zero'd before freeing

4 years agogss: check for replays in test_context
Luke Howard [Tue, 14 Apr 2020 10:02:59 +0000 (20:02 +1000)]
gss: check for replays in test_context

Add GSS_C_REPLAY_FLAG to the default set of flags in test_context.

4 years agogss: don't use heim_assert() in test_context
Luke Howard [Tue, 14 Apr 2020 07:27:55 +0000 (17:27 +1000)]
gss: don't use heim_assert() in test_context

Use errx() rather than heim_assert() in test_context

4 years agogss: make gss_compare_name comply with RFC2743
Luke Howard [Tue, 14 Apr 2020 04:46:32 +0000 (14:46 +1000)]
gss: make gss_compare_name comply with RFC2743

Anonymous names should always compare FALSE in GSS_Compare_name(). If the names
are being compared at the mechglue layer then we should check for
GSS_C_NT_ANONYMOUS.

4 years agogss: add tests for importing and exporting contexts
Luke Howard [Tue, 14 Apr 2020 02:33:25 +0000 (12:33 +1000)]
gss: add tests for importing and exporting contexts

Add the --export-import-context flag to test_context, for validating that
security contexts round-trip through GSS_Export_sec_context() and
GSS_Import_sec_context().

4 years agogss: allow gss_set_sec_context_option() to allocate a context
Luke Howard [Tue, 14 Apr 2020 02:36:55 +0000 (12:36 +1000)]
gss: allow gss_set_sec_context_option() to allocate a context

The prototype for gss_set_sec_context_option() allows it to return a new
context, however this was not implemented. This functionality is required by
GSS_KRB5_IMPORT_RFC4121_CONTEXT_X.

4 years agogss: add support for gss_duplicate_cred() in SPNEGO
Luke Howard [Mon, 13 Apr 2020 10:53:35 +0000 (20:53 +1000)]
gss: add support for gss_duplicate_cred() in SPNEGO

The SPNEGO dispatch table does not include gss_duplicate_cred(). It can call
directly into the mechglue because a SPNEGO credential is a mechglue
credential.

4 years agogss: remove superfluous SPNEGO cred wrappers
Luke Howard [Mon, 13 Apr 2020 10:51:44 +0000 (20:51 +1000)]
gss: remove superfluous SPNEGO cred wrappers

SPNEGO credentials are mechglue credentials. SPNEGO credential wrapper
functions can be replaced with direct calls into the mechglue, unless a
specific check is required to avoid infinite recursion (as is the case where
the mechglue enumerates all mechanism when passed a null credential handle).

4 years agogss: fix test_acquire_cred usage description
Luke Howard [Mon, 13 Apr 2020 03:53:44 +0000 (13:53 +1000)]
gss: fix test_acquire_cred usage description

4 years agogss: fix downlevel Windows interop regression
Luke Howard [Thu, 9 Apr 2020 12:51:30 +0000 (22:51 +1000)]
gss: fix downlevel Windows interop regression

The recent changes to SPNEGO removed support for GSS_C_PEER_HAS_UPDATED_SPNEGO,
through which the Kerberos mechanism could indicate to SPNEGO that the peer did
not suffer from SPNEGO conformance bugs present in some versions of Windows.*

This patch restores this workaround, documented in [MS-SPNG] Appendix A <7>
Section 3.1.5.1. Whilst improving interoperability with these admittedly now
unsupported versions of Windows, it does introduce a risk that Kerberos with
pre-AES ciphers could be negotiated in lieu of a stronger and more preferred
mechanism.

Note: this patch inverts the mechanism interface from
GSS_C_PEER_HAS_UPDATED_SPNEGO to GSS_C_INQ_PEER_HAS_BUGGY_SPNEGO, so that new
mechanisms (which did not ship with these older versions of Windows) are not
required to implement it.

* Windows 2000, Windows 2003, and Windows XP

4 years agogss: remove GSS_C_MA_AUTH_INIT_ANON from krb5 mech
Luke Howard [Sun, 12 Apr 2020 23:42:29 +0000 (09:42 +1000)]
gss: remove GSS_C_MA_AUTH_INIT_ANON from krb5 mech

Pending integration of #551, the krb5 mechanism does not support
GSS_C_ANON_FLAG. Remove the GSS_C_MA_AUTH_INIT_ANON mechanism attribute until
such time it does.

4 years agogss: order SPNEGO proposed mechs by req_flags
Luke Howard [Tue, 7 Apr 2020 02:39:43 +0000 (12:39 +1000)]
gss: order SPNEGO proposed mechs by req_flags

Sort the list of mechanisms proposed by the initiator so that mechanisms are
preferred by their advertised support for GSS flags. For example, if
GSS_C_MUTUAL_FLAG is requested, a mechanism that offers GSS_C_MA_AUTH_TARG will
be preferred over one that doesn't. The flag/mechanism attribute combinations
are also assigned a weight (mutual trumps anonymous, for example).

4 years agoroken: add mergesort_r()
Luke Howard [Tue, 7 Apr 2020 03:49:27 +0000 (13:49 +1000)]
roken: add mergesort_r()

Add mergesort_r() as a stable sort function that can be used by other
components of Heimdal. Note that there is no standardized prototype for this
function, however it appears that both FreeBSD and glibc would adopt the glibc
convention (where the private data argument appears last). See:

    https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=214248

4 years agogss: __gss_c_attr_stream_sizes_oid_desc declspec
Luke Howard [Sat, 11 Apr 2020 00:04:43 +0000 (10:04 +1000)]
gss: __gss_c_attr_stream_sizes_oid_desc declspec

__gss_c_attr_stream_sizes_oid_desc was tagged with GSSAPI_LIB_FUNCTION instead
of GSSAPI_LIB_VARIABLE; whilst the macro expansion is identical, fix for
cleanliness

4 years agogss: fix copy/paste error in gss_destroy_cred()
Luke Howard [Sat, 11 Apr 2020 00:02:09 +0000 (10:02 +1000)]
gss: fix copy/paste error in gss_destroy_cred()

gss_destroy_cred() was missing a calling convention, instead had the import
declaration twice

4 years agoExpand tokens in gss cred store "ccache" value
Nicolas Williams [Wed, 18 Mar 2020 18:37:13 +0000 (13:37 -0500)]
Expand tokens in gss cred store "ccache" value

This is needed so that sshd and such can get make practical use of the
"ccache" key in GSS cred stores.

This commit only changes the store path, not the acquisition path.

4 years agoList FILE collection even when KRB5CCNAME is a sub
Nicolas Williams [Wed, 18 Mar 2020 05:43:01 +0000 (00:43 -0500)]
List FILE collection even when KRB5CCNAME is a sub

Setting KRB5CCNAME=/tmp/krb5cc_${UID}+${princ} should not prevent
listing the FILE collection.

4 years agohcrypto: Fix Makefile build race
Nicolas Williams [Wed, 18 Mar 2020 00:46:37 +0000 (19:46 -0500)]
hcrypto: Fix Makefile build race

4 years agokrb5: Use sqlite3_close(), not v2
Nicolas Williams [Wed, 18 Mar 2020 00:45:51 +0000 (19:45 -0500)]
krb5: Use sqlite3_close(), not v2

4 years agokrb5: Fix kinit harder
Nicolas Williams [Sat, 14 Mar 2020 02:36:00 +0000 (21:36 -0500)]
krb5: Fix kinit harder

The previous fixes for using `krb5_cc_default_for()` weren't quite
correct.

4 years agokrb5: Allow rename of empty FILE ccaches
Nicolas Williams [Sat, 14 Mar 2020 16:25:46 +0000 (11:25 -0500)]
krb5: Allow rename of empty FILE ccaches

4 years agogss: Sometimes set KRB5CCNAME when not overwriting
Nicolas Williams [Fri, 13 Mar 2020 23:43:00 +0000 (18:43 -0500)]
gss: Sometimes set KRB5CCNAME when not overwriting

4 years agogss: Fix default cache preference
Nicolas Williams [Fri, 13 Mar 2020 23:14:17 +0000 (18:14 -0500)]
gss: Fix default cache preference

4 years agoFix Appveyor Windows build
Nicolas Williams [Fri, 13 Mar 2020 03:58:13 +0000 (22:58 -0500)]
Fix Appveyor Windows build

4 years agogss: Prefer the default ccache when user_realm
Nicolas Williams [Thu, 12 Mar 2020 22:58:53 +0000 (17:58 -0500)]
gss: Prefer the default ccache when user_realm

gss_store_cred_into*() will now switch the new cred cache to be the
primary/default cred cache when

 - the caller requested it and,
 - if the caller passed in a user name, the creds' principal is the best
   principal for the named user.

A principal is the best principal for a user when the principal has just
one component, the component is the user's username, and the realm is
the configured user_realm.

4 years agokinit: Prefer the default ccache when user_realm
Nicolas Williams [Thu, 12 Mar 2020 22:57:16 +0000 (17:57 -0500)]
kinit: Prefer the default ccache when user_realm

If using the new --cache-default-for option, use the real default if the
principal is the best principal for the user.

A principal is the best principal for a user when the principal has just
one component, the component is the user's username, and the realm is
the configured user_realm.