diff --git a/docs/devel/qapi-code-gen.txt b/docs/devel/qapi-code-gen.txt index 9625798d16..f020f6bab2 100644 --- a/docs/devel/qapi-code-gen.txt +++ b/docs/devel/qapi-code-gen.txt @@ -649,13 +649,11 @@ example: { 'command': 'migrate_recover', 'data': { 'uri': 'str' }, 'allow-oob': true } -To execute a command with out-of-band priority, the client specifies -the "control" field in the request, with "run-oob" set to -true. Example: +To execute a command with out-of-band priority, the client uses key +"exec-oob" instead of "execute". Example: - => { "execute": "command-support-oob", - "arguments": { ... }, - "control": { "run-oob": true } } + => { "exec-oob": "migrate-recover", + "arguments": { "uri": "tcp:192.168.1.200:12345" } } <= { "return": { } } Without it, even the commands that support out-of-band execution will diff --git a/docs/interop/qmp-spec.txt b/docs/interop/qmp-spec.txt index a1d6f9ee06..1566b8ae5e 100644 --- a/docs/interop/qmp-spec.txt +++ b/docs/interop/qmp-spec.txt @@ -92,12 +92,16 @@ Currently supported capabilities are: The format for command execution is: -{ "execute": json-string, "arguments": json-object, "id": json-value, - "control": json-object } +{ "execute": json-string, "arguments": json-object, "id": json-value } + +or + +{ "exec-oob": json-string, "arguments": json-object, "id": json-value } Where, -- The "execute" member identifies the command to be executed by the Server +- The "execute" or "exec-oob" member identifies the command to be + executed by the server. The latter requests out-of-band execution. - The "arguments" member is used to pass any arguments required for the execution of the command, it is optional when no arguments are required. Each command documents what contents will be considered @@ -106,9 +110,6 @@ The format for command execution is: 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 --------------------------- @@ -129,9 +130,6 @@ To be able to match responses back to their commands, the client needs to pass "id" with out-of-band commands. Passing it with all commands is recommended for clients that accept capability "oob". -To execute a command out-of-band, the client puts "run-oob": true into -execute's member "control". - If the client sends in-band commands faster than the server can execute them, the server will eventually drop commands to limit the queue length. The sever sends event COMMAND_DROPPED then. @@ -274,7 +272,7 @@ S: { "timestamp": { "seconds": 1258551470, "microseconds": 802384 }, 3.7 Out-of-band execution ------------------------- -C: { "execute": "migrate-pause", "id": 42, "control": { "run-oob": true } } +C: { "exec-oob": "migrate-pause", "id": 42 } S: { "id": 42, "error": { "class": "GenericError", "desc": "migrate-pause is currently only supported during postcopy-active state" } } diff --git a/monitor.c b/monitor.c index 2e443bba13..3bf3e68bdc 100644 --- a/monitor.c +++ b/monitor.c @@ -1300,6 +1300,9 @@ static bool qmp_cmd_oob_check(Monitor *mon, QDict *req, Error **errp) QmpCommand *cmd; command = qdict_get_try_str(req, "execute"); + if (!command) { + command = qdict_get_try_str(req, "exec-oob"); + } if (!command) { error_setg(errp, "Command field 'execute' missing"); return false; diff --git a/qapi/qmp-dispatch.c b/qapi/qmp-dispatch.c index 0ad0fab8ed..12be120fe7 100644 --- a/qapi/qmp-dispatch.c +++ b/qapi/qmp-dispatch.c @@ -23,11 +23,11 @@ QDict *qmp_dispatch_check_obj(const QObject *request, bool allow_oob, Error **errp) { + const char *exec_key = NULL; const QDictEntry *ent; const char *arg_name; const QObject *arg_obj; - bool has_exec_key = false; - QDict *dict = NULL; + QDict *dict; dict = qobject_to(QDict, request); if (!dict) { @@ -40,25 +40,25 @@ QDict *qmp_dispatch_check_obj(const QObject *request, bool allow_oob, arg_name = qdict_entry_key(ent); arg_obj = qdict_entry_value(ent); - if (!strcmp(arg_name, "execute")) { + if (!strcmp(arg_name, "execute") + || (!strcmp(arg_name, "exec-oob") && allow_oob)) { if (qobject_type(arg_obj) != QTYPE_QSTRING) { - error_setg(errp, - "QMP input member 'execute' must be a string"); + error_setg(errp, "QMP input member '%s' must be a string", + arg_name); return NULL; } - has_exec_key = true; + if (exec_key) { + error_setg(errp, "QMP input member '%s' clashes with '%s'", + arg_name, exec_key); + return NULL; + } + exec_key = arg_name; } else if (!strcmp(arg_name, "arguments")) { if (qobject_type(arg_obj) != QTYPE_QDICT) { error_setg(errp, "QMP input member 'arguments' must be an object"); return NULL; } - } else if (!strcmp(arg_name, "control") && allow_oob) { - if (qobject_type(arg_obj) != QTYPE_QDICT) { - error_setg(errp, - "QMP input member 'control' must be a dict"); - return NULL; - } } else { error_setg(errp, "QMP input member '%s' is unexpected", arg_name); @@ -66,7 +66,7 @@ QDict *qmp_dispatch_check_obj(const QObject *request, bool allow_oob, } } - if (!has_exec_key) { + if (!exec_key) { error_setg(errp, "QMP input lacks member 'execute'"); return NULL; } @@ -88,7 +88,11 @@ static QObject *do_qmp_dispatch(QmpCommandList *cmds, QObject *request, return NULL; } - command = qdict_get_str(dict, "execute"); + command = qdict_get_try_str(dict, "execute"); + if (!command) { + assert(allow_oob); + command = qdict_get_str(dict, "exec-oob"); + } cmd = qmp_find_command(cmds, command); if (cmd == NULL) { error_set(errp, ERROR_CLASS_COMMAND_NOT_FOUND, @@ -137,25 +141,12 @@ QObject *qmp_build_error_object(Error *err) } /* - * Detect whether a request should be run out-of-band, by quickly - * peeking at whether we have: { "control": { "run-oob": true } }. By - * default commands are run in-band. + * Does @qdict look like a command to be run out-of-band? */ bool qmp_is_oob(QDict *dict) { - QBool *bool_obj; - - dict = qdict_get_qdict(dict, "control"); - if (!dict) { - return false; - } - - bool_obj = qobject_to(QBool, qdict_get(dict, "run-oob")); - if (!bool_obj) { - return false; - } - - return qbool_get_bool(bool_obj); + return qdict_haskey(dict, "exec-oob") + && !qdict_haskey(dict, "execute"); } QObject *qmp_dispatch(QmpCommandList *cmds, QObject *request, diff --git a/tests/qmp-test.c b/tests/qmp-test.c index c9d01b87ca..a7b6ec98e4 100644 --- a/tests/qmp-test.c +++ b/tests/qmp-test.c @@ -176,8 +176,7 @@ static void unblock_blocked_cmd(void) static void send_oob_cmd_that_fails(QTestState *s, const char *id) { - qtest_async_qmp(s, "{ 'execute': 'migrate-pause', 'id': %s," - " 'control': { 'run-oob': true } }", id); + qtest_async_qmp(s, "{ 'exec-oob': 'migrate-pause', 'id': %s }", id); } static void recv_cmd_id(QTestState *s, const char *id) @@ -229,9 +228,7 @@ static void test_qmp_oob(void) * Try any command that does not support OOB but with OOB flag. We * should get failure. */ - resp = qtest_qmp(qts, - "{ 'execute': 'query-cpus'," - " 'control': { 'run-oob': true } }"); + resp = qtest_qmp(qts, "{ 'exec-oob': 'query-cpus' }"); g_assert(qdict_haskey(resp, "error")); qobject_unref(resp); diff --git a/tests/test-qga.c b/tests/test-qga.c index febabc7ad5..daadf22ea3 100644 --- a/tests/test-qga.c +++ b/tests/test-qga.c @@ -249,8 +249,7 @@ static void test_qga_invalid_oob(gconstpointer fix) QDict *ret, *error; const char *class; - ret = qmp_fd(fixture->fd, "{'execute': 'guest-ping'," - " 'control': {'run-oob': true}}"); + ret = qmp_fd(fixture->fd, "{'exec-oob': 'guest-ping'}"); g_assert_nonnull(ret); error = qdict_get_qdict(ret, "error");