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bh=LFTDr825FMzPBU3tjZJr268wIpQ/iffr0DrtR876y14=; b=LfDTufrxpOhi5ZO21jkHMp16pIoNswSCVST2d8JCXnYi+y7KRkf4nnFTXEZO6OQEj2AJuw WdhIYfwgXP889DJMQ6K+IzyBViSzi2QYq6OJ/vis2oWe2PLUJM8dsSZP1S1yQ+CHOlHXI4 ifmvquqUvcm3pbqZ3S6HcX4t29FQdXk= X-MC-Unique: Jpjv-h99N_y4LqsUvqIGww-1 From: Kevin Wolf To: qemu-devel@nongnu.org Subject: [PATCH 05/13] char-socket: Implement compat code for CLI QAPIfication Date: Thu, 12 Nov 2020 18:58:57 +0100 Message-Id: <20201112175905.404472-6-kwolf@redhat.com> In-Reply-To: <20201112175905.404472-1-kwolf@redhat.com> References: <20201112175905.404472-1-kwolf@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=kwolf@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: quoted-printable 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; 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charset="utf-8" Socket backends have a few differences between CLI and QMP. This adds QAPI aliases and a .translate_legacy_options() implementation that converts CLI inputs to a form that's usable for a QAPIfied --chardev. Signed-off-by: Kevin Wolf --- qapi/char.json | 3 ++- qapi/sockets.json | 6 ++++- include/chardev/char.h | 1 + chardev/char-socket.c | 53 ++++++++++++++++++++++++++++++++++++++++++ chardev/char.c | 10 +++++++- 5 files changed, 70 insertions(+), 3 deletions(-) diff --git a/qapi/char.json b/qapi/char.json index 91c0dbfa1e..1930e90e95 100644 --- a/qapi/char.json +++ b/qapi/char.json @@ -287,7 +287,8 @@ '*tn3270': 'bool', '*websocket': 'bool', '*reconnect': 'int' }, - 'base': 'ChardevCommon' } + 'base': 'ChardevCommon', + 'aliases': [ { 'source': ['addr'] } ] } =20 ## # @ChardevUdp: diff --git a/qapi/sockets.json b/qapi/sockets.json index 2e83452797..8c61787311 100644 --- a/qapi/sockets.json +++ b/qapi/sockets.json @@ -125,7 +125,11 @@ 'inet': 'InetSocketAddress', 'unix': 'UnixSocketAddress', 'vsock': 'VsockSocketAddress', - 'fd': 'String' } } + 'fd': 'String' }, + 'aliases': [ + {'source': ['data']}, + {'alias': 'fd', 'source': ['data', 'str']} + ]} =20 ## # @SocketAddressType: diff --git a/include/chardev/char.h b/include/chardev/char.h index 7795e17ca5..c0944f5828 100644 --- a/include/chardev/char.h +++ b/include/chardev/char.h @@ -275,6 +275,7 @@ struct ChardevClass { =20 bool internal; /* TODO: eventually use TYPE_USER_CREATABLE */ void (*parse)(QemuOpts *opts, ChardevBackend *backend, Error **errp); + void (*translate_legacy_options)(QDict *args); =20 void (*open)(Chardev *chr, ChardevBackend *backend, bool *be_opened, Error **errp); diff --git a/chardev/char-socket.c b/chardev/char-socket.c index 213a4c8dd0..6bf916a3e4 100644 --- a/chardev/char-socket.c +++ b/chardev/char-socket.c @@ -34,6 +34,7 @@ #include "qapi/error.h" #include "qapi/clone-visitor.h" #include "qapi/qapi-visit-sockets.h" +#include "qapi/qmp/qdict.h" =20 #include "chardev/char-io.h" #include "qom/object.h" @@ -1484,6 +1485,57 @@ static void qemu_chr_parse_socket(QemuOpts *opts, Ch= ardevBackend *backend, sock->addr =3D addr; } =20 +static void qemu_chr_translate_socket(QDict *args) +{ + const char *path =3D qdict_get_try_str(args, "path"); + const char *host =3D qdict_get_try_str(args, "host"); + const char *fd =3D qdict_get_try_str(args, "fd"); + const char *delay =3D qdict_get_try_str(args, "delay"); + const char *server =3D qdict_get_try_str(args, "server"); + const char *wait =3D qdict_get_try_str(args, "wait"); + QDict *addr; + + if ((!!path + !!fd + !!host) !=3D 1) { + return; + } + + /* If "addr" is not present, automatically set the type */ + if (!qdict_haskey(args, "addr")) { + addr =3D qdict_new(); + qdict_put(args, "addr", addr); + + if (path) { + qdict_put_str(addr, "type", "unix"); + } else if (host) { + qdict_put_str(addr, "type", "inet"); + } else if (fd) { + qdict_put_str(addr, "type", "fd"); + } + } + + /* "delay" is translated into "nodelay" */ + if (delay && !qdict_haskey(args, "nodelay")) { + if (!strcmp(delay, "on")) { + qdict_put_str(args, "nodelay", "off"); + qdict_del(args, "delay"); + } else if (!strcmp(delay, "off")) { + qdict_put_str(args, "nodelay", "on"); + qdict_del(args, "delay"); + } + } + + /* "server=3Doff" is the CLI default */ + if (!server) { + server =3D "off"; + qdict_put_str(args, "server", server); + } + + /* "wait=3Don" is the default if "server=3Don" */ + if (!wait && !strcmp(server, "on")) { + qdict_put_str(args, "wait", "on"); + } +} + static void char_socket_get_addr(Object *obj, Visitor *v, const char *name, void *opaque, Error **errp) @@ -1506,6 +1558,7 @@ static void char_socket_class_init(ObjectClass *oc, v= oid *data) ChardevClass *cc =3D CHARDEV_CLASS(oc); =20 cc->parse =3D qemu_chr_parse_socket; + cc->translate_legacy_options =3D qemu_chr_translate_socket; cc->open =3D qmp_chardev_open_socket; cc->chr_wait_connected =3D tcp_chr_wait_connected; cc->chr_write =3D tcp_chr_write; diff --git a/chardev/char.c b/chardev/char.c index 40c3f02ec9..91b44e53b6 100644 --- a/chardev/char.c +++ b/chardev/char.c @@ -720,6 +720,7 @@ out: =20 void qemu_chr_translate_legacy_options(QDict *args) { + const ChardevClass *cc; const char *name; =20 /* "backend" instead of "type" enables legacy CLI compatibility */ @@ -730,12 +731,19 @@ void qemu_chr_translate_legacy_options(QDict *args) =20 name =3D chardev_alias_translate(name); qdict_put_str(args, "type", name); + + cc =3D char_get_class(name, NULL); + if (cc !=3D NULL && cc->translate_legacy_options) { + QDict *backend_data =3D qdict_get_qdict(args, "data") ?: args; + cc->translate_legacy_options(backend_data); + } + + /* name may refer to a QDict entry, so delete it only now */ qdict_del(args, "backend"); =20 /* * TODO: * All backend types: "mux" - * socket: "addr.type", "delay", "server", "wait", "fd" * udp: defaults for "host"/"localaddr"/"localport" */ } --=20 2.28.0