Introduce Virtio-loopback epsilon release:

Epsilon release introduces a new compatibility layer which make virtio-loopback
design to work with QEMU and rust-vmm vhost-user backend without require any
changes.

Signed-off-by: Timos Ampelikiotis <t.ampelikiotis@virtualopensystems.com>
Change-Id: I52e57563e08a7d0bdc002f8e928ee61ba0c53dd9

1 files changed, 101 insertions, 0 deletions

diff --git a/include/authz/base.h b/include/authz/base.h
new file mode 100644
index 000000000..b53e4e450
--- /dev/null
+++ b/include/authz/base.h
@@ -0,0 +1,101 @@
+/*
+ * QEMU authorization framework base class
+ *
+ * Copyright (c) 2018 Red Hat, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef QAUTHZ_BASE_H
+#define QAUTHZ_BASE_H
+
+#include "qapi/error.h"
+#include "qom/object.h"
+
+
+#define TYPE_QAUTHZ "authz"
+
+OBJECT_DECLARE_TYPE(QAuthZ, QAuthZClass,
+                    QAUTHZ)
+
+
+/**
+ * QAuthZ:
+ *
+ * The QAuthZ class defines an API contract to be used
+ * for providing an authorization driver for services
+ * with user identities.
+ */
+
+struct QAuthZ {
+    Object parent_obj;
+};
+
+
+struct QAuthZClass {
+    ObjectClass parent_class;
+
+    bool (*is_allowed)(QAuthZ *authz,
+                       const char *identity,
+                       Error **errp);
+};
+
+
+/**
+ * qauthz_is_allowed:
+ * @authz: the authorization object
+ * @identity: the user identity to authorize
+ * @errp: pointer to a NULL initialized error object
+ *
+ * Check if a user @identity is authorized. If an error
+ * occurs this method will return false to indicate
+ * denial, as well as setting @errp to contain the details.
+ * Callers are recommended to treat the denial and error
+ * scenarios identically. Specifically the error info in
+ * @errp should never be fed back to the user being
+ * authorized, it is merely for benefit of administrator
+ * debugging.
+ *
+ * Returns: true if @identity is authorized, false if denied or if
+ * an error occurred.
+ */
+bool qauthz_is_allowed(QAuthZ *authz,
+                       const char *identity,
+                       Error **errp);
+
+
+/**
+ * qauthz_is_allowed_by_id:
+ * @authzid: ID of the authorization object
+ * @identity: the user identity to authorize
+ * @errp: pointer to a NULL initialized error object
+ *
+ * Check if a user @identity is authorized. If an error
+ * occurs this method will return false to indicate
+ * denial, as well as setting @errp to contain the details.
+ * Callers are recommended to treat the denial and error
+ * scenarios identically. Specifically the error info in
+ * @errp should never be fed back to the user being
+ * authorized, it is merely for benefit of administrator
+ * debugging.
+ *
+ * Returns: true if @identity is authorized, false if denied or if
+ * an error occurred.
+ */
+bool qauthz_is_allowed_by_id(const char *authzid,
+                             const char *identity,
+                             Error **errp);
+
+#endif /* QAUTHZ_BASE_H */