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c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1720790743; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=lwJ1OB2L/SUx9ijm5m9sgHwcgsrAmSlmkYXEO159lfk=; b=F+LBnQUNpOWq5aNPr6mQntviKM68rVcqwYSI2j+0FRNxZFkSoRjfYgkWcCVaBNrhEyLpE1 DW6DczxYcJOwnJqTNKV+Z8TBsCCAmqcjRhCfgfePh47avI4dcnAU/RgRuL0KZ3qnxPgSI1 Ccw5vGVhFgGmZMrE1MdTqG/Ks1QOPRU= X-MC-Unique: gizsp8V8MjSuaDFTHMryNQ-1 From: =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= To: qemu-devel@nongnu.org Cc: Thomas Huth , =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= , Michael Roth , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Paolo Bonzini , =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= , Konstantin Kostiuk Subject: [PATCH v3 10/22] qga: conditionalize schema for commands requiring getifaddrs Date: Fri, 12 Jul 2024 14:24:47 +0100 Message-ID: <20240712132459.3974109-11-berrange@redhat.com> In-Reply-To: <20240712132459.3974109-1-berrange@redhat.com> References: <20240712132459.3974109-1-berrange@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.0 on 10.30.177.17 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.133.124; envelope-from=berrange@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -21 X-Spam_score: -2.2 X-Spam_bar: -- X-Spam_report: (-2.2 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.138, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1720790864249116600 Rather than creating stubs for every comamnd that just return QERR_UNSUPPORTED, use 'if' conditions in the QAPI schema to fully exclude generation of the network interface command on POSIX platforms lacking getifaddrs(). The command will be rejected at QMP dispatch time instead, avoiding reimplementing rejection by blocking the stub commands. This changes the error message for affected commands from {"class": "CommandNotFound", "desc": "Command FOO has been disabled"} to {"class": "CommandNotFound", "desc": "The command FOO has not been foun= d"} This has the additional benefit that the QGA protocol reference now documents what conditions enable use of the command. Reviewed-by: Philippe Mathieu-Daud=C3=A9 Reviewed-by: Konstantin Kostiuk Signed-off-by: Daniel P. Berrang=C3=A9 --- qga/commands-posix.c | 13 ------------- qga/qapi-schema.json | 15 ++++++++++----- 2 files changed, 10 insertions(+), 18 deletions(-) diff --git a/qga/commands-posix.c b/qga/commands-posix.c index 559d71ffae..09d08ee2ca 100644 --- a/qga/commands-posix.c +++ b/qga/commands-posix.c @@ -1142,14 +1142,6 @@ error: return NULL; } =20 -#else - -GuestNetworkInterfaceList *qmp_guest_network_get_interfaces(Error **errp) -{ - error_setg(errp, QERR_UNSUPPORTED); - return NULL; -} - #endif /* HAVE_GETIFADDRS */ =20 #if !defined(CONFIG_FSFREEZE) @@ -1222,11 +1214,6 @@ qmp_guest_fstrim(bool has_minimum, int64_t minimum, = Error **errp) /* add unsupported commands to the list of blocked RPCs */ GList *ga_command_init_blockedrpcs(GList *blockedrpcs) { -#if !defined(HAVE_GETIFADDRS) - blockedrpcs =3D g_list_append(blockedrpcs, - g_strdup("guest-network-get-interfaces")); -#endif - #if !defined(CONFIG_FSFREEZE) { const char *list[] =3D { diff --git a/qga/qapi-schema.json b/qga/qapi-schema.json index 38483652ac..79ed4f0e21 100644 --- a/qga/qapi-schema.json +++ b/qga/qapi-schema.json @@ -654,7 +654,8 @@ # Since: 1.1 ## { 'enum': 'GuestIpAddressType', - 'data': [ 'ipv4', 'ipv6' ] } + 'data': [ 'ipv4', 'ipv6' ], + 'if': { 'any': ['CONFIG_WIN32', 'HAVE_GETIFADDRS'] } } =20 ## # @GuestIpAddress: @@ -670,7 +671,8 @@ { 'struct': 'GuestIpAddress', 'data': {'ip-address': 'str', 'ip-address-type': 'GuestIpAddressType', - 'prefix': 'int'} } + 'prefix': 'int'}, + 'if': { 'any': ['CONFIG_WIN32', 'HAVE_GETIFADDRS'] } } =20 ## # @GuestNetworkInterfaceStat: @@ -702,7 +704,8 @@ 'tx-packets': 'uint64', 'tx-errs': 'uint64', 'tx-dropped': 'uint64' - } } + }, + 'if': { 'any': ['CONFIG_WIN32', 'HAVE_GETIFADDRS'] } } =20 ## # @GuestNetworkInterface: @@ -722,7 +725,8 @@ 'data': {'name': 'str', '*hardware-address': 'str', '*ip-addresses': ['GuestIpAddress'], - '*statistics': 'GuestNetworkInterfaceStat' } } + '*statistics': 'GuestNetworkInterfaceStat' }, + 'if': { 'any': ['CONFIG_WIN32', 'HAVE_GETIFADDRS'] } } =20 ## # @guest-network-get-interfaces: @@ -734,7 +738,8 @@ # Since: 1.1 ## { 'command': 'guest-network-get-interfaces', - 'returns': ['GuestNetworkInterface'] } + 'returns': ['GuestNetworkInterface'], + 'if': { 'any': ['CONFIG_WIN32', 'HAVE_GETIFADDRS'] } } =20 ## # @GuestLogicalProcessor: --=20 2.45.1