Backport patch removing the key caching to handle reusing

libcacard-2.7.0-caching-keys.patch

@@ -0,0 +1,124 @@
+From 2c10ae315375730020108cbcae0c282d0d6eff5f Mon Sep 17 00:00:00 2001
+From: Jakub Jelen <jjelen@redhat.com>
+Date: Mon, 26 Aug 2019 17:42:06 +0200
+Subject: [PATCH 1/2] vcard_emul_nss: Drop the key caching to simplify error
+ handling
+
+It could happen with PKCS#11 modules that (correctly) invalidate object
+handles after logout (which was introduced in 0d3a683a), that the handles
+are not valid when we try to use the objects again.
+
+This is trying to address this use case, which I noticed was breaking
+CI with SoftHSM PKCS#11 modules.
+
+Signed-off-by: Jakub Jelen <jjelen@redhat.com>
+---
+ src/vcard_emul_nss.c | 15 +--------------
+ 1 file changed, 1 insertion(+), 14 deletions(-)
+
+diff --git a/src/vcard_emul_nss.c b/src/vcard_emul_nss.c
+index e8f5c56..f788964 100644
+--- a/src/vcard_emul_nss.c
++++ b/src/vcard_emul_nss.c
+@@ -52,7 +52,6 @@ typedef enum {
+ struct VCardKeyStruct {
+     CERTCertificate *cert;
+     PK11SlotInfo *slot;
+-    SECKEYPrivateKey *key;
+     VCardEmulTriState failedX509;
+ };
+ 
+@@ -155,10 +154,6 @@ vcard_emul_make_key(PK11SlotInfo *slot, CERTCertificate *cert)
+     key = g_new(VCardKey, 1);
+     key->slot = PK11_ReferenceSlot(slot);
+     key->cert = CERT_DupCertificate(cert);
+-    /* NOTE: if we aren't logged into the token, this could return NULL */
+-    /* NOTE: the cert is a temp cert, not necessarily the cert in the token,
+-     * use the DER version of this function */
+-    key->key = PK11_FindKeyByDERCert(slot, cert, NULL);
+     key->failedX509 = VCardEmulUnknown;
+     return key;
+ }
+@@ -170,10 +165,6 @@ vcard_emul_delete_key(VCardKey *key)
+     if (!nss_emul_init || (key == NULL)) {
+         return;
+     }
+-    if (key->key) {
+-        SECKEY_DestroyPrivateKey(key->key);
+-        key->key = NULL;
+-    }
+     if (key->cert) {
+         CERT_DestroyCertificate(key->cert);
+     }
+@@ -189,12 +180,8 @@ vcard_emul_delete_key(VCardKey *key)
+ static SECKEYPrivateKey *
+ vcard_emul_get_nss_key(VCardKey *key)
+ {
+-    if (key->key) {
+-        return key->key;
+-    }
+     /* NOTE: if we aren't logged into the token, this could return NULL */
+-    key->key = PK11_FindPrivateKeyFromCert(key->slot, key->cert, NULL);
+-    return key->key;
++    return PK11_FindPrivateKeyFromCert(key->slot, key->cert, NULL);
+ }
+ 
+ /*
+-- 
+2.22.0
+
+
+From 06587ef683373690f61540935b4516b4f23238ea Mon Sep 17 00:00:00 2001
+From: Jakub Jelen <jjelen@redhat.com>
+Date: Tue, 27 Aug 2019 12:38:45 +0200
+Subject: [PATCH 2/2] tests: Reproducer for pkcs11 modules invalidating object
+ handles on logout
+
+Signed-off-by: Jakub Jelen <jjelen@redhat.com>
+---
+ tests/hwtests.c | 21 +++++++++++++++++++++
+ 1 file changed, 21 insertions(+)
+
+diff --git a/tests/hwtests.c b/tests/hwtests.c
+index cd9a33b..39decfb 100644
+--- a/tests/hwtests.c
++++ b/tests/hwtests.c
+@@ -339,6 +339,26 @@ static void test_sign_bad_data_x509(void)
+     vreader_free(reader); /* get by id ref */
+ }
+ 
++/* This is a regression test for issues with PKCS#11 tokens
++ * invalidating object handles after logout (such as softhsm).
++ * See: https://bugzilla.mozilla.org/show_bug.cgi?id=1576642
++ */
++static void test_sign_logout_sign(void)
++{
++    VReader *reader = vreader_get_reader_by_id(0);
++
++    g_assert_nonnull(reader);
++
++    test_login();
++    test_sign();
++
++    /* This implicitly logs out the user */
++    test_login();
++    test_sign();
++
++    vreader_free(reader); /* get by id ref */
++}
++
+ static void libcacard_finalize(void)
+ {
+     VReader *reader = vreader_get_reader_by_id(0);
+@@ -374,6 +394,7 @@ int main(int argc, char *argv[])
+     g_test_add_func("/hw-tests/sign-bad-data", test_sign_bad_data_x509);
+     g_test_add_func("/hw-tests/empty-applets", test_empty_applets);
+     g_test_add_func("/hw-tests/get-response", test_get_response);
++    g_test_add_func("/hw-tests/sign-logout-sign", test_sign_logout_sign);
+ 
+     ret = g_test_run();
+ 
+-- 
+2.22.0
+
+

libcacard.spec

@@ -7,6 +7,8 @@ URL:            https://gitlab.freedesktop.org/spice/libcacard
 Source0:        http://www.spice-space.org/download/libcacard/%{name}-%{version}.tar.xz
 Source1:        http://www.spice-space.org/download/libcacard/%{name}-%{version}.tar.xz.asc
 Source2:        gpgkey-15B5C33D.gpg
+# https://gitlab.freedesktop.org/spice/libcacard/merge_requests/5
+Patch0:         %{name}-2.7.0-caching-keys.patch
 Epoch:          3
 
 BuildRequires:  gcc
@@ -39,6 +41,7 @@ developing applications that use %{name}.
 %prep
 gpgv2 --quiet --keyring %{SOURCE2} %{SOURCE1} %{SOURCE0}
 %setup -q
+%patch0 -p1
 
 %build
 %configure --disable-static