[PATCH 7/8] backup: Add new domain:checkpoint access control

[Eric Blake <eblake@xxxxxxxxxx>]

Creating a checkpoint does not modify guest-visible state,
but does modify host resources.  Rather than reuse existing
domain:write, domain:block_write, or domain:snapshot access
controls, it seems better to introduce a new access control
specific to tasks related to checkpoints and incremental
backups of guest disk state.

Signed-off-by: Eric Blake <eblake@xxxxxxxxxx>
---
 src/access/viraccessperm.c | 5 +++--
 src/access/viraccessperm.h | 8 +++++++-
 2 files changed, 10 insertions(+), 3 deletions(-)

diff --git a/src/access/viraccessperm.c b/src/access/viraccessperm.c
index 0f58290173..cba3c556d8 100644
--- a/src/access/viraccessperm.c
+++ b/src/access/viraccessperm.c
@@ -1,7 +1,7 @@
 /*
  * viraccessperm.c: access control permissions
  *
- * Copyright (C) 2012-2014 Red Hat, Inc.
+ * Copyright (C) 2012-2018 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
@@ -38,7 +38,8 @@ VIR_ENUM_IMPL(virAccessPermDomain,
               "getattr", "read", "write", "read_secure",
               "start", "stop", "reset",
               "save", "delete",
-              "migrate", "snapshot", "suspend", "hibernate", "core_dump", "pm_control",
+              "migrate", "checkpoint", "snapshot", "suspend", "hibernate",
+              "core_dump", "pm_control",
               "init_control", "inject_nmi", "send_input", "send_signal",
               "fs_trim", "fs_freeze",
               "block_read", "block_write", "mem_read",
diff --git a/src/access/viraccessperm.h b/src/access/viraccessperm.h
index 1817da73bc..373c76859b 100644
--- a/src/access/viraccessperm.h
+++ b/src/access/viraccessperm.h
@@ -1,7 +1,7 @@
 /*
  * viraccessperm.h: access control permissions
  *
- * Copyright (C) 2012-2014 Red Hat, Inc.
+ * Copyright (C) 2012-2018 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
@@ -180,6 +180,12 @@ typedef enum {
      */
     VIR_ACCESS_PERM_DOMAIN_MIGRATE,   /* Host migration */

+    /**
+     * @desc: Checkpoint domain
+     * @message: Checkpointing domain requires authorization
+     */
+    VIR_ACCESS_PERM_DOMAIN_CHECKPOINT,  /* Checkpoint disks */
+
     /**
      * @desc: Snapshot domain
      * @message: Snapshotting domain requires authorization
-- 
2.14.4

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