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Re: [PATCH v2 35/39] tests/qtest: migration-test: Skip running some TLS


From: Daniel P . Berrangé
Subject: Re: [PATCH v2 35/39] tests/qtest: migration-test: Skip running some TLS cases for win32
Date: Wed, 21 Sep 2022 18:23:30 +0100
User-agent: Mutt/2.2.6 (2022-06-05)

On Wed, Sep 21, 2022 at 05:51:33PM +0100, Dr. David Alan Gilbert wrote:
> * Bin Meng (bmeng.cn@gmail.com) wrote:
> > From: Bin Meng <bin.meng@windriver.com>
> > 
> > Some migration test cases use TLS to communicate, but they fail on
> > Windows with the following error messages:
> > 
> >   qemu-system-x86_64: TLS handshake failed: Insufficient credentials for 
> > that request.
> >   qemu-system-x86_64: TLS handshake failed: Error in the pull function.
> >   query-migrate shows failed migration: TLS handshake failed: Error in the 
> > pull function.
> > 
> > Disable them temporarily.
> > 
> > Signed-off-by: Bin Meng <bin.meng@windriver.com>
> > ---
> > I am not familar with the gnutls and simply enabling the gnutls debug
> > output does not give me an immedidate hint on why it's failing on
> > Windows. Disable these cases for now until someone or maintainers
> > who may want to test this on Windows.
> 
> Copying in Dan Berrange, he's our expert on weird TLS failures.

Seems to match this:

   https://gnutls.org/faq.html#key-usage-violation2

which suggests we have a configuration mis-match.

I'm surprised to see you are only needing to disable the TLS PSK tests,
not the TLS x509 tests.

I'd like to know if tests/unit/test-crypto-tlssession passes.

If so, it might suggest we are missing 'priority: NORMAL' property
when configuring TLS creds for the migration test.

> > (no changes since v1)
> > 
> >  tests/qtest/migration-test.c | 14 ++++++++++++++
> >  1 file changed, 14 insertions(+)
> > 
> > diff --git a/tests/qtest/migration-test.c b/tests/qtest/migration-test.c
> > index aedd9ddb72..dbee9b528a 100644
> > --- a/tests/qtest/migration-test.c
> > +++ b/tests/qtest/migration-test.c
> > @@ -1403,6 +1403,7 @@ static void test_precopy_unix_dirty_ring(void)
> >  }
> >  
> >  #ifdef CONFIG_GNUTLS
> > +#ifndef _WIN32
> >  static void test_precopy_unix_tls_psk(void)
> >  {
> >      g_autofree char *uri = g_strdup_printf("unix:%s/migsocket", tmpfs);
> > @@ -1415,6 +1416,7 @@ static void test_precopy_unix_tls_psk(void)
> >  
> >      test_precopy_common(&args);
> >  }
> > +#endif /* _WIN32 */
> >  
> >  #ifdef CONFIG_TASN1
> >  static void test_precopy_unix_tls_x509_default_host(void)
> > @@ -1523,6 +1525,7 @@ static void test_precopy_tcp_plain(void)
> >  }
> >  
> >  #ifdef CONFIG_GNUTLS
> > +#ifndef _WIN32
> >  static void test_precopy_tcp_tls_psk_match(void)
> >  {
> >      MigrateCommon args = {
> > @@ -1533,6 +1536,7 @@ static void test_precopy_tcp_tls_psk_match(void)
> >  
> >      test_precopy_common(&args);
> >  }
> > +#endif /* _WIN32 */
> >  
> >  static void test_precopy_tcp_tls_psk_mismatch(void)
> >  {
> > @@ -1930,6 +1934,7 @@ static void test_multifd_tcp_zstd(void)
> >  #endif
> >  
> >  #ifdef CONFIG_GNUTLS
> > +#ifndef _WIN32
> >  static void *
> >  test_migrate_multifd_tcp_tls_psk_start_match(QTestState *from,
> >                                               QTestState *to)
> > @@ -1937,6 +1942,7 @@ 
> > test_migrate_multifd_tcp_tls_psk_start_match(QTestState *from,
> >      test_migrate_precopy_tcp_multifd_start_common(from, to, "none");
> >      return test_migrate_tls_psk_start_match(from, to);
> >  }
> > +#endif /* _WIN32 */
> >  
> >  static void *
> >  test_migrate_multifd_tcp_tls_psk_start_mismatch(QTestState *from,
> > @@ -1988,6 +1994,7 @@ 
> > test_migrate_multifd_tls_x509_start_reject_anon_client(QTestState *from,
> >  }
> >  #endif /* CONFIG_TASN1 */
> >  
> > +#ifndef _WIN32
> >  static void test_multifd_tcp_tls_psk_match(void)
> >  {
> >      MigrateCommon args = {
> > @@ -1997,6 +2004,7 @@ static void test_multifd_tcp_tls_psk_match(void)
> >      };
> >      test_precopy_common(&args);
> >  }
> > +#endif /* _WIN32 */
> >  
> >  static void test_multifd_tcp_tls_psk_mismatch(void)
> >  {
> > @@ -2497,8 +2505,10 @@ int main(int argc, char **argv)
> >      qtest_add_func("/migration/precopy/unix/plain", 
> > test_precopy_unix_plain);
> >      qtest_add_func("/migration/precopy/unix/xbzrle", 
> > test_precopy_unix_xbzrle);
> >  #ifdef CONFIG_GNUTLS
> > +#ifndef _WIN32
> >      qtest_add_func("/migration/precopy/unix/tls/psk",
> >                     test_precopy_unix_tls_psk);
> > +#endif
> >  
> >      if (has_uffd) {
> >          /*
> > @@ -2524,8 +2534,10 @@ int main(int argc, char **argv)
> >  
> >      qtest_add_func("/migration/precopy/tcp/plain", test_precopy_tcp_plain);
> >  #ifdef CONFIG_GNUTLS
> > +#ifndef _WIN32
> >      qtest_add_func("/migration/precopy/tcp/tls/psk/match",
> >                     test_precopy_tcp_tls_psk_match);
> > +#endif
> >      qtest_add_func("/migration/precopy/tcp/tls/psk/mismatch",
> >                     test_precopy_tcp_tls_psk_mismatch);
> >  #ifdef CONFIG_TASN1
> > @@ -2569,8 +2581,10 @@ int main(int argc, char **argv)
> >                     test_multifd_tcp_zstd);
> >  #endif
> >  #ifdef CONFIG_GNUTLS
> > +#ifndef _WIN32
> >      qtest_add_func("/migration/multifd/tcp/tls/psk/match",
> >                     test_multifd_tcp_tls_psk_match);
> > +#endif
> >      qtest_add_func("/migration/multifd/tcp/tls/psk/mismatch",
> >                     test_multifd_tcp_tls_psk_mismatch);
> >  #ifdef CONFIG_TASN1
> > -- 
> > 2.34.1
> > 
> -- 
> Dr. David Alan Gilbert / dgilbert@redhat.com / Manchester, UK
> 

With regards,
Daniel
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