[PATCH v5 0/6] crypto: Make QCryptoTLSCreds* structures private

[PATCH v5 0/6] crypto: Make QCryptoTLSCreds* structures private

[Philippe Mathieu-Daudé]

Missing review: 5 & 6

Follow Daniel suggestion to simplify qcrypto TLS implementations,
aiming to solve the OSX build failure.

Since v4:
- Do not introduce qcrypto_tls_session_check_role (Richard, Daniel)
- Added R-b tags

Since v3:
- Added missing @errp docstring description

Since v2:
- Add Error* argument (Daniel)
- Move structure definitions to "tlscredspriv.h"

Philippe Mathieu-Daudé (6):
  crypto/tlscreds: Introduce qcrypto_tls_creds_check_endpoint() helper
  block/nbd: Use qcrypto_tls_creds_check_endpoint()
  chardev/socket: Use qcrypto_tls_creds_check_endpoint()
  migration/tls: Use qcrypto_tls_creds_check_endpoint()
  ui/vnc: Use qcrypto_tls_creds_check_endpoint()
  crypto: Make QCryptoTLSCreds* structures private

 crypto/tlscredspriv.h              | 45 ++++++++++++++++++++++++++++++
 include/crypto/tls-cipher-suites.h |  6 ----
 include/crypto/tlscreds.h          | 30 ++++++++++----------
 include/crypto/tlscredsanon.h      | 12 --------
 include/crypto/tlscredspsk.h       | 12 --------
 include/crypto/tlscredsx509.h      | 10 -------
 block/nbd.c                        |  6 ++--
 blockdev-nbd.c                     |  6 ++--
 chardev/char-socket.c              | 18 ++++--------
 crypto/tls-cipher-suites.c         |  7 +++++
 crypto/tlscreds.c                  | 12 ++++++++
 crypto/tlscredsanon.c              |  2 ++
 crypto/tlscredspsk.c               |  2 ++
 crypto/tlscredsx509.c              |  1 +
 crypto/tlssession.c                |  1 +
 migration/tls.c                    |  6 +---
 ui/vnc.c                           |  7 +++--
 17 files changed, 101 insertions(+), 82 deletions(-)

-- 
2.31.1

[PATCH v5 1/6] crypto/tlscreds: Introduce qcrypto_tls_creds_check_endpoint() helper

[Philippe Mathieu-Daudé]

Introduce the qcrypto_tls_creds_check_endpoint() helper
to access QCryptoTLSCreds internal 'endpoint' field.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
---
 include/crypto/tlscreds.h | 14 ++++++++++++++
 crypto/tlscreds.c         | 12 ++++++++++++
 2 files changed, 26 insertions(+)

diff --git a/include/crypto/tlscreds.h b/include/crypto/tlscreds.h
index d0808e391e9..a14e44fac15 100644
--- a/include/crypto/tlscreds.h
+++ b/include/crypto/tlscreds.h
@@ -65,5 +65,19 @@ struct QCryptoTLSCredsClass {
     CryptoTLSCredsReload reload;
 };
 
+/**
+ * qcrypto_tls_creds_check_endpoint:
+ * @creds: pointer to a TLS credentials object
+ * @endpoint: type of network endpoint that will be using the credentials
+ * @errp: pointer to a NULL-initialized error object
+ *
+ * Check whether the credentials is setup according to
+ * the type of @endpoint argument.
+ *
+ * Returns true if the credentials is setup for the endpoint, false otherwise
+ */
+bool qcrypto_tls_creds_check_endpoint(QCryptoTLSCreds *creds,
+                                      QCryptoTLSCredsEndpoint endpoint,
+                                      Error **errp);
 
 #endif /* QCRYPTO_TLSCREDS_H */
diff --git a/crypto/tlscreds.c b/crypto/tlscreds.c
index b68735f06fe..084ce0d51ae 100644
--- a/crypto/tlscreds.c
+++ b/crypto/tlscreds.c
@@ -20,6 +20,7 @@
 
 #include "qemu/osdep.h"
 #include "qapi/error.h"
+#include "qapi-types-crypto.h"
 #include "qemu/module.h"
 #include "tlscredspriv.h"
 #include "trace.h"
@@ -259,6 +260,17 @@ qcrypto_tls_creds_finalize(Object *obj)
     g_free(creds->priority);
 }
 
+bool qcrypto_tls_creds_check_endpoint(QCryptoTLSCreds *creds,
+                                      QCryptoTLSCredsEndpoint endpoint,
+                                      Error **errp)
+{
+    if (creds->endpoint != endpoint) {
+        error_setg(errp, "Expected TLS credentials for a %s endpoint",
+                   QCryptoTLSCredsEndpoint_str(endpoint));
+        return false;
+    }
+    return true;
+}
 
 static const TypeInfo qcrypto_tls_creds_info = {
     .parent = TYPE_OBJECT,
-- 
2.31.1

[PATCH v5 2/6] block/nbd: Use qcrypto_tls_creds_check_endpoint()

[Philippe Mathieu-Daudé]

Avoid accessing QCryptoTLSCreds internals by using
the qcrypto_tls_creds_check_endpoint() helper.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
---
 block/nbd.c    | 6 +++---
 blockdev-nbd.c | 6 +++---
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/block/nbd.c b/block/nbd.c
index 616f9ae6c4d..b13a33c3d21 100644
--- a/block/nbd.c
+++ b/block/nbd.c
@@ -2159,9 +2159,9 @@ static QCryptoTLSCreds *nbd_get_tls_creds(const char *id, Error **errp)
         return NULL;
     }
 
-    if (creds->endpoint != QCRYPTO_TLS_CREDS_ENDPOINT_CLIENT) {
-        error_setg(errp,
-                   "Expecting TLS credentials with a client endpoint");
+    if (!qcrypto_tls_creds_check_endpoint(creds,
+                                          QCRYPTO_TLS_CREDS_ENDPOINT_CLIENT,
+                                          errp)) {
         return NULL;
     }
     object_ref(obj);
diff --git a/blockdev-nbd.c b/blockdev-nbd.c
index b264620b98d..bdfa7ed3a5a 100644
--- a/blockdev-nbd.c
+++ b/blockdev-nbd.c
@@ -108,9 +108,9 @@ static QCryptoTLSCreds *nbd_get_tls_creds(const char *id, Error **errp)
         return NULL;
     }
 
-    if (creds->endpoint != QCRYPTO_TLS_CREDS_ENDPOINT_SERVER) {
-        error_setg(errp,
-                   "Expecting TLS credentials with a server endpoint");
+    if (!qcrypto_tls_creds_check_endpoint(creds,
+                                          QCRYPTO_TLS_CREDS_ENDPOINT_SERVER,
+                                          errp)) {
         return NULL;
     }
     object_ref(obj);
-- 
2.31.1

[PATCH v5 3/6] chardev/socket: Use qcrypto_tls_creds_check_endpoint()

[Philippe Mathieu-Daudé]

Avoid accessing QCryptoTLSCreds internals by using
the qcrypto_tls_creds_check_endpoint() helper.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
---
 chardev/char-socket.c | 18 ++++++------------
 1 file changed, 6 insertions(+), 12 deletions(-)

diff --git a/chardev/char-socket.c b/chardev/char-socket.c
index daa89fe5d1d..d0fb5459638 100644
--- a/chardev/char-socket.c
+++ b/chardev/char-socket.c
@@ -1402,18 +1402,12 @@ static void qmp_chardev_open_socket(Chardev *chr,
             return;
         }
         object_ref(OBJECT(s->tls_creds));
-        if (is_listen) {
-            if (s->tls_creds->endpoint != QCRYPTO_TLS_CREDS_ENDPOINT_SERVER) {
-                error_setg(errp, "%s",
-                           "Expected TLS credentials for server endpoint");
-                return;
-            }
-        } else {
-            if (s->tls_creds->endpoint != QCRYPTO_TLS_CREDS_ENDPOINT_CLIENT) {
-                error_setg(errp, "%s",
-                           "Expected TLS credentials for client endpoint");
-                return;
-            }
+        if (!qcrypto_tls_creds_check_endpoint(s->tls_creds,
+                                          is_listen
+                                          ? QCRYPTO_TLS_CREDS_ENDPOINT_SERVER
+                                          : QCRYPTO_TLS_CREDS_ENDPOINT_CLIENT,
+                                          errp)) {
+            return;
         }
     }
     s->tls_authz = g_strdup(sock->tls_authz);
-- 
2.31.1

[PATCH v5 4/6] migration/tls: Use qcrypto_tls_creds_check_endpoint()

[Philippe Mathieu-Daudé]

Avoid accessing QCryptoTLSCreds internals by using
the qcrypto_tls_creds_check_endpoint() helper.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
---
 migration/tls.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/migration/tls.c b/migration/tls.c
index abb149d8325..ca1ea3bbdd4 100644
--- a/migration/tls.c
+++ b/migration/tls.c
@@ -49,11 +49,7 @@ migration_tls_get_creds(MigrationState *s,
                    s->parameters.tls_creds);
         return NULL;
     }
-    if (ret->endpoint != endpoint) {
-        error_setg(errp,
-                   "Expected TLS credentials for a %s endpoint",
-                   endpoint == QCRYPTO_TLS_CREDS_ENDPOINT_CLIENT ?
-                   "client" : "server");
+    if (!qcrypto_tls_creds_check_endpoint(ret, endpoint, errp)) {
         return NULL;
     }
 
-- 
2.31.1

[PATCH v5 5/6] ui/vnc: Use qcrypto_tls_creds_check_endpoint()

[Philippe Mathieu-Daudé]

Avoid accessing QCryptoTLSCreds internals by using
the qcrypto_tls_creds_check_endpoint() helper.

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
---
 ui/vnc.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/ui/vnc.c b/ui/vnc.c
index b3d4d7b9a5f..f7d63a16dd5 100644
--- a/ui/vnc.c
+++ b/ui/vnc.c
@@ -46,6 +46,7 @@
 #include "qapi/qapi-commands-ui.h"
 #include "ui/input.h"
 #include "crypto/hash.h"
+#include "crypto/tlscreds.h"
 #include "crypto/tlscredsanon.h"
 #include "crypto/tlscredsx509.h"
 #include "crypto/random.h"
@@ -4080,9 +4081,9 @@ void vnc_display_open(const char *id, Error **errp)
         }
         object_ref(OBJECT(vd->tlscreds));
 
-        if (vd->tlscreds->endpoint != QCRYPTO_TLS_CREDS_ENDPOINT_SERVER) {
-            error_setg(errp,
-                       "Expecting TLS credentials with a server endpoint");
+        if (!qcrypto_tls_creds_check_endpoint(vd->tlscreds,
+                                              QCRYPTO_TLS_CREDS_ENDPOINT_SERVER,
+                                              errp)) {
             goto fail;
         }
     }
-- 
2.31.1

Re: [PATCH v5 5/6] ui/vnc: Use qcrypto_tls_creds_check_endpoint()

[Richard Henderson]

On 6/17/21 5:18 AM, Philippe Mathieu-Daudé wrote:
> Avoid accessing QCryptoTLSCreds internals by using
> the qcrypto_tls_creds_check_endpoint() helper.
> 
> Signed-off-by: Philippe Mathieu-Daudé<philmd@redhat.com>
> ---
>   ui/vnc.c | 7 ++++---
>   1 file changed, 4 insertions(+), 3 deletions(-)

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>

r~

Re: [PATCH v5 5/6] ui/vnc: Use qcrypto_tls_creds_check_endpoint()

[Daniel P. Berrangé]

On Thu, Jun 17, 2021 at 02:18:29PM +0200, Philippe Mathieu-Daudé wrote:
> Avoid accessing QCryptoTLSCreds internals by using
> the qcrypto_tls_creds_check_endpoint() helper.
> 
> Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
> ---
>  ui/vnc.c | 7 ++++---
>  1 file changed, 4 insertions(+), 3 deletions(-)

Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>


Regards,
Daniel
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[PATCH v5 6/6] crypto: Make QCryptoTLSCreds* structures private

[Philippe Mathieu-Daudé]

Code consuming the "crypto/tlscreds*.h" APIs doesn't need
to access its internals. Move the structure definitions to
the "tlscredspriv.h" private header (only accessible by
implementations). The public headers (in include/) still
forward-declare the structures typedef.

Note, tlscreds.c and 3 of the 5 modified source files already
include "tlscredspriv.h", so only add it to tls-cipher-suites.c
and tlssession.c.

Removing the internals from the public header solves a bug
introduced by commit 7de2e856533 ("yank: Unregister function
when using TLS migration") which made migration/qemu-file-channel.c
include "io/channel-tls.h", itself sometime depends on GNUTLS,
leading to a 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              | 45 ++++++++++++++++++++++++++++++
 include/crypto/tls-cipher-suites.h |  6 ----
 include/crypto/tlscreds.h          | 16 -----------
 include/crypto/tlscredsanon.h      | 12 --------
 include/crypto/tlscredspsk.h       | 12 --------
 include/crypto/tlscredsx509.h      | 10 -------
 crypto/tls-cipher-suites.c         |  7 +++++
 crypto/tlscredsanon.c              |  2 ++
 crypto/tlscredspsk.c               |  2 ++
 crypto/tlscredsx509.c              |  1 +
 crypto/tlssession.c                |  1 +
 11 files changed, 58 insertions(+), 56 deletions(-)

diff --git a/crypto/tlscredspriv.h b/crypto/tlscredspriv.h
index 39f1a91c413..df9815a2863 100644
--- a/crypto/tlscredspriv.h
+++ b/crypto/tlscredspriv.h
@@ -23,6 +23,51 @@
 
 #include "crypto/tlscreds.h"
 
+#ifdef CONFIG_GNUTLS
+#include <gnutls/gnutls.h>
+#endif
+
+struct QCryptoTLSCreds {
+    Object parent_obj;
+    char *dir;
+    QCryptoTLSCredsEndpoint endpoint;
+#ifdef CONFIG_GNUTLS
+    gnutls_dh_params_t dh_params;
+#endif
+    bool verifyPeer;
+    char *priority;
+};
+
+struct QCryptoTLSCredsAnon {
+    QCryptoTLSCreds parent_obj;
+#ifdef CONFIG_GNUTLS
+    union {
+        gnutls_anon_server_credentials_t server;
+        gnutls_anon_client_credentials_t client;
+    } data;
+#endif
+};
+
+struct QCryptoTLSCredsPSK {
+    QCryptoTLSCreds parent_obj;
+    char *username;
+#ifdef CONFIG_GNUTLS
+    union {
+        gnutls_psk_server_credentials_t server;
+        gnutls_psk_client_credentials_t client;
+    } data;
+#endif
+};
+
+struct QCryptoTLSCredsX509 {
+    QCryptoTLSCreds parent_obj;
+#ifdef CONFIG_GNUTLS
+    gnutls_certificate_credentials_t data;
+#endif
+    bool sanityCheck;
+    char *passwordid;
+};
+
 #ifdef CONFIG_GNUTLS
 
 int qcrypto_tls_creds_get_path(QCryptoTLSCreds *creds,
diff --git a/include/crypto/tls-cipher-suites.h b/include/crypto/tls-cipher-suites.h
index bb9ee53e03a..7eb1b76122d 100644
--- a/include/crypto/tls-cipher-suites.h
+++ b/include/crypto/tls-cipher-suites.h
@@ -19,12 +19,6 @@ typedef struct QCryptoTLSCipherSuites QCryptoTLSCipherSuites;
 DECLARE_INSTANCE_CHECKER(QCryptoTLSCipherSuites, QCRYPTO_TLS_CIPHER_SUITES,
                          TYPE_QCRYPTO_TLS_CIPHER_SUITES)
 
-struct QCryptoTLSCipherSuites {
-    /* <private> */
-    QCryptoTLSCreds parent_obj;
-    /* <public> */
-};
-
 /**
   * qcrypto_tls_cipher_suites_get_data:
   * @obj: pointer to a TLS cipher suites object
diff --git a/include/crypto/tlscreds.h b/include/crypto/tlscreds.h
index a14e44fac15..2a8a8570109 100644
--- a/include/crypto/tlscreds.h
+++ b/include/crypto/tlscreds.h
@@ -24,10 +24,6 @@
 #include "qapi/qapi-types-crypto.h"
 #include "qom/object.h"
 
-#ifdef CONFIG_GNUTLS
-#include <gnutls/gnutls.h>
-#endif
-
 #define TYPE_QCRYPTO_TLS_CREDS "tls-creds"
 typedef struct QCryptoTLSCreds QCryptoTLSCreds;
 typedef struct QCryptoTLSCredsClass QCryptoTLSCredsClass;
@@ -48,18 +44,6 @@ typedef bool (*CryptoTLSCredsReload)(QCryptoTLSCreds *, Error **);
  * certificate credentials.
  */
 
-struct QCryptoTLSCreds {
-    Object parent_obj;
-    char *dir;
-    QCryptoTLSCredsEndpoint endpoint;
-#ifdef CONFIG_GNUTLS
-    gnutls_dh_params_t dh_params;
-#endif
-    bool verifyPeer;
-    char *priority;
-};
-
-
 struct QCryptoTLSCredsClass {
     ObjectClass parent_class;
     CryptoTLSCredsReload reload;
diff --git a/include/crypto/tlscredsanon.h b/include/crypto/tlscredsanon.h
index 3f464a38095..bd3023f9ea7 100644
--- a/include/crypto/tlscredsanon.h
+++ b/include/crypto/tlscredsanon.h
@@ -92,18 +92,6 @@ typedef struct QCryptoTLSCredsAnonClass QCryptoTLSCredsAnonClass;
  *
  */
 
-
-struct QCryptoTLSCredsAnon {
-    QCryptoTLSCreds parent_obj;
-#ifdef CONFIG_GNUTLS
-    union {
-        gnutls_anon_server_credentials_t server;
-        gnutls_anon_client_credentials_t client;
-    } data;
-#endif
-};
-
-
 struct QCryptoTLSCredsAnonClass {
     QCryptoTLSCredsClass parent_class;
 };
diff --git a/include/crypto/tlscredspsk.h b/include/crypto/tlscredspsk.h
index d7e6bdb5edf..bcd07dc4f62 100644
--- a/include/crypto/tlscredspsk.h
+++ b/include/crypto/tlscredspsk.h
@@ -87,18 +87,6 @@ typedef struct QCryptoTLSCredsPSKClass QCryptoTLSCredsPSKClass;
  * The PSK file can be created and managed using psktool.
  */
 
-struct QCryptoTLSCredsPSK {
-    QCryptoTLSCreds parent_obj;
-    char *username;
-#ifdef CONFIG_GNUTLS
-    union {
-        gnutls_psk_server_credentials_t server;
-        gnutls_psk_client_credentials_t client;
-    } data;
-#endif
-};
-
-
 struct QCryptoTLSCredsPSKClass {
     QCryptoTLSCredsClass parent_class;
 };
diff --git a/include/crypto/tlscredsx509.h b/include/crypto/tlscredsx509.h
index c6d89b78819..c4daba21a6b 100644
--- a/include/crypto/tlscredsx509.h
+++ b/include/crypto/tlscredsx509.h
@@ -96,16 +96,6 @@ typedef struct QCryptoTLSCredsX509Class QCryptoTLSCredsX509Class;
  *
  */
 
-struct QCryptoTLSCredsX509 {
-    QCryptoTLSCreds parent_obj;
-#ifdef CONFIG_GNUTLS
-    gnutls_certificate_credentials_t data;
-#endif
-    bool sanityCheck;
-    char *passwordid;
-};
-
-
 struct QCryptoTLSCredsX509Class {
     QCryptoTLSCredsClass parent_class;
 };
diff --git a/crypto/tls-cipher-suites.c b/crypto/tls-cipher-suites.c
index 55fb5f7c19d..5e4f5974645 100644
--- a/crypto/tls-cipher-suites.c
+++ b/crypto/tls-cipher-suites.c
@@ -14,8 +14,15 @@
 #include "crypto/tlscreds.h"
 #include "crypto/tls-cipher-suites.h"
 #include "hw/nvram/fw_cfg.h"
+#include "tlscredspriv.h"
 #include "trace.h"
 
+struct QCryptoTLSCipherSuites {
+    /* <private> */
+    QCryptoTLSCreds parent_obj;
+    /* <public> */
+};
+
 /*
  * IANA registered TLS ciphers:
  * https://www.iana.org/assignments/tls-parameters/tls-parameters.xhtml#tls-parameters-4
diff --git a/crypto/tlscredsanon.c b/crypto/tlscredsanon.c
index bea5f76c55d..6fb83639ecd 100644
--- a/crypto/tlscredsanon.c
+++ b/crypto/tlscredsanon.c
@@ -29,6 +29,8 @@
 
 #ifdef CONFIG_GNUTLS
 
+#include <gnutls/gnutls.h>
+
 
 static int
 qcrypto_tls_creds_anon_load(QCryptoTLSCredsAnon *creds,
diff --git a/crypto/tlscredspsk.c b/crypto/tlscredspsk.c
index f5a31108d15..752f2d92bee 100644
--- a/crypto/tlscredspsk.c
+++ b/crypto/tlscredspsk.c
@@ -29,6 +29,8 @@
 
 #ifdef CONFIG_GNUTLS
 
+#include <gnutls/gnutls.h>
+
 static int
 lookup_key(const char *pskfile, const char *username, gnutls_datum_t *key,
            Error **errp)
diff --git a/crypto/tlscredsx509.c b/crypto/tlscredsx509.c
index d9d6f4421e5..32948a6bdc4 100644
--- a/crypto/tlscredsx509.c
+++ b/crypto/tlscredsx509.c
@@ -30,6 +30,7 @@
 
 #ifdef CONFIG_GNUTLS
 
+#include <gnutls/gnutls.h>
 #include <gnutls/x509.h>
 
 
diff --git a/crypto/tlssession.c b/crypto/tlssession.c
index 33203e8ca71..a8db8c76d13 100644
--- a/crypto/tlssession.c
+++ b/crypto/tlssession.c
@@ -25,6 +25,7 @@
 #include "crypto/tlscredsx509.h"
 #include "qapi/error.h"
 #include "authz/base.h"
+#include "tlscredspriv.h"
 #include "trace.h"
 
 #ifdef CONFIG_GNUTLS
-- 
2.31.1

Re: [PATCH v5 6/6] crypto: Make QCryptoTLSCreds* structures private

[Daniel P. Berrangé]

On Thu, Jun 17, 2021 at 02:18:30PM +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 "tlscredspriv.h" private header (only accessible by
> implementations). The public headers (in include/) still
> forward-declare the structures typedef.
> 
> Note, tlscreds.c and 3 of the 5 modified source files already
> include "tlscredspriv.h", so only add it to tls-cipher-suites.c
> and tlssession.c.
> 
> Removing the internals from the public header solves a bug
> introduced by commit 7de2e856533 ("yank: Unregister function
> when using TLS migration") which made migration/qemu-file-channel.c
> include "io/channel-tls.h", itself sometime depends on GNUTLS,
> leading to a 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              | 45 ++++++++++++++++++++++++++++++
>  include/crypto/tls-cipher-suites.h |  6 ----
>  include/crypto/tlscreds.h          | 16 -----------
>  include/crypto/tlscredsanon.h      | 12 --------
>  include/crypto/tlscredspsk.h       | 12 --------
>  include/crypto/tlscredsx509.h      | 10 -------
>  crypto/tls-cipher-suites.c         |  7 +++++
>  crypto/tlscredsanon.c              |  2 ++
>  crypto/tlscredspsk.c               |  2 ++
>  crypto/tlscredsx509.c              |  1 +
>  crypto/tlssession.c                |  1 +
>  11 files changed, 58 insertions(+), 56 deletions(-)

Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>


Regards,
Daniel
-- 
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Re: [PATCH v5 0/6] crypto: Make QCryptoTLSCreds* structures private

[Akihiko Odaki]

Hi,

qemu-nbd.c still refers to members of QCryptoTLSCreds* and can't be 
compiled.

Regards,
Akihiko Odaki

On 2021/06/17 21:18, Philippe Mathieu-Daudé wrote:
> Missing review: 5 & 6
> 
> Follow Daniel suggestion to simplify qcrypto TLS implementations,
> aiming to solve the OSX build failure.
> 
> Since v4:
> - Do not introduce qcrypto_tls_session_check_role (Richard, Daniel)
> - Added R-b tags
> 
> Since v3:
> - Added missing @errp docstring description
> 
> Since v2:
> - Add Error* argument (Daniel)
> - Move structure definitions to "tlscredspriv.h"
> 
> Philippe Mathieu-Daudé (6):
>    crypto/tlscreds: Introduce qcrypto_tls_creds_check_endpoint() helper
>    block/nbd: Use qcrypto_tls_creds_check_endpoint()
>    chardev/socket: Use qcrypto_tls_creds_check_endpoint()
>    migration/tls: Use qcrypto_tls_creds_check_endpoint()
>    ui/vnc: Use qcrypto_tls_creds_check_endpoint()
>    crypto: Make QCryptoTLSCreds* structures private
> 
>   crypto/tlscredspriv.h              | 45 ++++++++++++++++++++++++++++++
>   include/crypto/tls-cipher-suites.h |  6 ----
>   include/crypto/tlscreds.h          | 30 ++++++++++----------
>   include/crypto/tlscredsanon.h      | 12 --------
>   include/crypto/tlscredspsk.h       | 12 --------
>   include/crypto/tlscredsx509.h      | 10 -------
>   block/nbd.c                        |  6 ++--
>   blockdev-nbd.c                     |  6 ++--
>   chardev/char-socket.c              | 18 ++++--------
>   crypto/tls-cipher-suites.c         |  7 +++++
>   crypto/tlscreds.c                  | 12 ++++++++
>   crypto/tlscredsanon.c              |  2 ++
>   crypto/tlscredspsk.c               |  2 ++
>   crypto/tlscredsx509.c              |  1 +
>   crypto/tlssession.c                |  1 +
>   migration/tls.c                    |  6 +---
>   ui/vnc.c                           |  7 +++--
>   17 files changed, 101 insertions(+), 82 deletions(-)
> 

Re: [PATCH v5 0/6] crypto: Make QCryptoTLSCreds* structures private

[Philippe Mathieu-Daudé]

On 6/28/21 5:56 AM, Akihiko Odaki wrote:
> Hi,
> 
> qemu-nbd.c still refers to members of QCryptoTLSCreds* and can't be
> compiled.

Thanks for testing, I'll have a look.

> 
> Regards,
> Akihiko Odaki
> 
> On 2021/06/17 21:18, Philippe Mathieu-Daudé wrote:
>> Missing review: 5 & 6
>>
>> Follow Daniel suggestion to simplify qcrypto TLS implementations,
>> aiming to solve the OSX build failure.