[Qemu-devel] [PATCH 07/32] qmp: Make "id" optional again even in "oob" monitors

[Markus Armbruster <armbru@redhat.com>]

Commit cf869d53172 "qmp: support out-of-band (oob) execution" made
"id" mandatory for all commands when the client accepted capability
"oob".  This is rather onerous when you play with QMP by hand, and
unnecessarily so: only out-of-band commands need an ID for reliable
matching of response to command.

Revert that part of commit cf869d53172 for now.  We may still make
"id" mandatory for out-of-band commands.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
---
 docs/interop/qmp-spec.txt | 9 +++------
 monitor.c                 | 7 -------
 2 files changed, 3 insertions(+), 13 deletions(-)

diff --git a/docs/interop/qmp-spec.txt b/docs/interop/qmp-spec.txt
index e5f8116c54..794c95838f 100644
--- a/docs/interop/qmp-spec.txt
+++ b/docs/interop/qmp-spec.txt
@@ -103,16 +103,13 @@ The format for command execution is:
   required. Each command documents what contents will be considered
   valid when handling the json-argument
 - The "id" member is a transaction identification associated with the
-  command execution.  It is required for all commands if the OOB -
-  capability was enabled at startup, and optional otherwise.  The same
-  "id" field will be part of the response if provided.  The "id"
-  member can be any json-value.  A json-number incremented for each
-  successive command works fine.
+  command execution, it is optional and will be part of the response
+  if provided.  The "id" member can be any json-value.  A json-number
+  incremented for each successive command works fine.
 - The optional "control" member further specifies how the command is
   to be executed.  Currently, its only member is optional "run-oob".
   See section "2.3.1 Out-of-band execution" for details.
 
-
 2.3.1 Out-of-band execution
 ---------------------------
 
diff --git a/monitor.c b/monitor.c
index 96e87d8664..b7d74b01b4 100644
--- a/monitor.c
+++ b/monitor.c
@@ -4291,13 +4291,6 @@ static void handle_qmp_command(JSONMessageParser *parser, GQueue *tokens)
 
     id = qdict_get(qdict, "id");
 
-    /* When OOB is enabled, the "id" field is mandatory. */
-    if (qmp_oob_enabled(mon) && !id) {
-        error_setg(&err, "Out-of-band capability requires that "
-                   "every command contains an 'id' field");
-        goto err;
-    }
-
     req_obj = g_new0(QMPRequest, 1);
     req_obj->mon = mon;
     req_obj->id = qobject_ref(id);
-- 
2.17.1