[PATCH v2 30/30] qapi: New -compat deprecated-input=crash

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Policy "crash" calls abort() when deprecated input is received.

Bugs in integration tests may mask the error from policy "reject".
Provide a larger hammer: crash outright.  Masking that seems unlikely.

Signed-off-by: Markus Armbruster <armbru@xxxxxxxxxx>
---
 qapi/compat.json             | 3 ++-
 qapi/qmp-dispatch.c          | 1 +
 qapi/qobject-input-visitor.c | 1 +
 qemu-options.hx              | 4 +++-
 4 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/qapi/compat.json b/qapi/compat.json
index fd6f8e932c..ec24567639 100644
--- a/qapi/compat.json
+++ b/qapi/compat.json
@@ -11,11 +11,12 @@
 #
 # @accept: Accept silently
 # @reject: Reject with an error
+# @crash: abort() the process
 #
 # Since: 5.0
 ##
 { 'enum': 'CompatPolicyInput',
-  'data': [ 'accept', 'reject' ] }
+  'data': [ 'accept', 'reject', 'crash' ] }
 
 ##
 # @CompatPolicyOutput:
diff --git a/qapi/qmp-dispatch.c b/qapi/qmp-dispatch.c
index 516ee9b0b7..2c8fac02cd 100644
--- a/qapi/qmp-dispatch.c
+++ b/qapi/qmp-dispatch.c
@@ -141,6 +141,7 @@ QDict *qmp_dispatch(QmpCommandList *cmds, QObject *request,
                       "Deprecated command %s disabled by policy",
                       command);
             goto out;
+        case COMPAT_POLICY_INPUT_CRASH:
         default:
             abort();
         }
diff --git a/qapi/qobject-input-visitor.c b/qapi/qobject-input-visitor.c
index 6ea93f5a7a..a74c901be9 100644
--- a/qapi/qobject-input-visitor.c
+++ b/qapi/qobject-input-visitor.c
@@ -654,6 +654,7 @@ static bool qobject_input_deprecated(Visitor *v, const char *name,
         error_setg(errp, "Deprecated parameter '%s' disabled by policy",
                    name);
         return false;
+    case COMPAT_POLICY_INPUT_CRASH:
     default:
         abort();
     }
diff --git a/qemu-options.hx b/qemu-options.hx
index d02d6bfc15..7e49f778f4 100644
--- a/qemu-options.hx
+++ b/qemu-options.hx
@@ -3361,7 +3361,7 @@ STEXI
 ETEXI
 
 DEF("compat", HAS_ARG, QEMU_OPTION_compat,
-    "-compat [deprecated-input=accept|reject][,deprecated-output=accept|hide]\n"
+    "-compat [deprecated-input=accept|reject|crash][,deprecated-output=accept|hide]\n"
     "                Policy for handling deprecated management interfaces\n",
     QEMU_ARCH_ALL)
 STEXI
@@ -3373,6 +3373,8 @@ Set policy for handling deprecated management interfaces (experimental):
 Accept deprecated commands and arguments
 @item deprecated-input=reject
 Reject deprecated commands and arguments
+@item deprecated-input=crash
+Crash on deprecated command
 @item deprecated-output=accept (default)
 Emit deprecated command results and events
 @item deprecated-output=hide
-- 
2.21.1





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