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Re: [PATCH v2 7/7] crypto: Make QCryptoTLSCreds* structures private
From: |
Daniel P . Berrangé |
Subject: |
Re: [PATCH v2 7/7] crypto: Make QCryptoTLSCreds* structures private |
Date: |
Tue, 15 Jun 2021 18:21:35 +0100 |
User-agent: |
Mutt/2.0.7 (2021-05-04) |
On Tue, Jun 15, 2021 at 07:16:17PM +0200, Philippe Mathieu-Daudé wrote:
> On 6/15/21 6:52 PM, Daniel P. Berrangé wrote:
> > On Tue, Jun 15, 2021 at 06:47:51PM +0200, Philippe Mathieu-Daudé wrote:
> >> Code consuming the "crypto/tlscreds*.h" APIs doesn't need
> >> to access its internals. Move the structure definitions to
> >> the implementations in crypto/. The headers still forward
> >> declare the structures typedef.
> >>
> >> This solves a bug introduced by commit 7de2e856533 which made
> >> migration/qemu-file-channel.c include "io/channel-tls.h",
> >> itself sometime depends on GNUTLS, leading to build failure
> >> on OSX:
> >>
> >> [2/35] Compiling C object
> >> libmigration.fa.p/migration_qemu-file-channel.c.o
> >> FAILED: libmigration.fa.p/migration_qemu-file-channel.c.o
> >> cc -Ilibmigration.fa.p -I. -I.. -Iqapi [ ... ] -o
> >> libmigration.fa.p/migration_qemu-file-channel.c.o -c
> >> ../migration/qemu-file-channel.c
> >> In file included from ../migration/qemu-file-channel.c:29:
> >> In file included from include/io/channel-tls.h:26:
> >> In file included from include/crypto/tlssession.h:24:
> >> include/crypto/tlscreds.h:28:10: fatal error: 'gnutls/gnutls.h' file not
> >> found
> >> #include <gnutls/gnutls.h>
> >> ^~~~~~~~~~~~~~~~~
> >> 1 error generated.
> >>
> >> Reported-by: Stefan Weil <sw@weilnetz.de>
> >> Suggested-by: Daniel P. Berrangé <berrange@redhat.com>
> >> Resolves: https://gitlab.com/qemu-project/qemu/-/issues/407
> >> Fixes: 7de2e856533 ("yank: Unregister function when using TLS migration")
> >> Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
> >> ---
> >> crypto/tlscredspriv.h | 15 +++++++++++++++
> >> include/crypto/tlscreds.h | 16 ----------------
> >> include/crypto/tlscredsanon.h | 12 ------------
> >> include/crypto/tlscredspsk.h | 12 ------------
> >> include/crypto/tlscredsx509.h | 10 ----------
> >> crypto/tlscredsanon.c | 13 +++++++++++++
> >> crypto/tlscredspsk.c | 14 ++++++++++++++
> >> crypto/tlscredsx509.c | 16 +++++++++++++---
> >> 8 files changed, 55 insertions(+), 53 deletions(-)
> >
> > Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
>
> Thanks, however I missed something:
>
> crypto/tlssession.c: In function ‘qcrypto_tls_session_new’:
> crypto/tlssession.c:163:48: error: invalid use of incomplete typedef
> ‘QCryptoTLSCredsAnon’
> 163 | acreds->data.server);
> | ^~
> crypto/tlssession.c:167:48: error: invalid use of incomplete typedef
> ‘QCryptoTLSCredsAnon’
> 167 | acreds->data.client);
> | ^~
> crypto/tlssession.c:201:48: error: invalid use of incomplete typedef
> ‘QCryptoTLSCredsPSK’
> 201 | pcreds->data.server);
> | ^~
> crypto/tlssession.c:205:48: error: invalid use of incomplete typedef
> ‘QCryptoTLSCredsPSK’
> 205 | pcreds->data.client);
> | ^~
> crypto/tlssession.c:228:44: error: invalid use of incomplete typedef
> ‘QCryptoTLSCredsX509’
> 228 | tcreds->data);
> | ^~
Ah, yes, the tls session code needs to peer at the tlscred data.
We could have a 'crypto/tlscredspriv.h' header that declares
some accessors for getting this data from tls session.
Regards,
Daniel
--
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- [PATCH v2 1/7] crypto/tlscreds: Introduce qcrypto_tls_creds_check_endpoint() helper, (continued)
- [PATCH v2 1/7] crypto/tlscreds: Introduce qcrypto_tls_creds_check_endpoint() helper, Philippe Mathieu-Daudé, 2021/06/15
- [PATCH v2 2/7] block/nbd: Use qcrypto_tls_creds_check_endpoint(), Philippe Mathieu-Daudé, 2021/06/15
- [PATCH v2 3/7] chardev/socket: Use qcrypto_tls_creds_check_endpoint(), Philippe Mathieu-Daudé, 2021/06/15
- [PATCH v2 4/7] migration/tls: Use qcrypto_tls_creds_check_endpoint(), Philippe Mathieu-Daudé, 2021/06/15
- [PATCH v2 5/7] crypto/tlssession: Introduce qcrypto_tls_creds_check_endpoint() helper, Philippe Mathieu-Daudé, 2021/06/15
- [PATCH v2 6/7] ui/vnc: Use qcrypto_tls_session_check_role(), Philippe Mathieu-Daudé, 2021/06/15
- [PATCH v2 7/7] crypto: Make QCryptoTLSCreds* structures private, Philippe Mathieu-Daudé, 2021/06/15