qemu-e2k/net/clients.h
Laurent Vivier 5166fe0ae4 qapi: net: add stream and dgram netdevs
Copied from socket netdev file and modified to use SocketAddress
to be able to introduce new features like unix socket.

"udp" and "mcast" are squashed into dgram netdev, multicast is detected
according to the IP address type.
"listen" and "connect" modes are managed by stream netdev. An optional
parameter "server" defines the mode (off by default)

The two new types need to be parsed the modern way with -netdev, because
with the traditional way, the "type" field of netdev structure collides with
the "type" field of SocketAddress and prevents the correct evaluation of the
command line option. Moreover the traditional way doesn't allow to use
the same type (SocketAddress) several times with the -netdev option
(needed to specify "local" and "remote" addresses).

The previous commit paved the way for parsing the modern way, but
omitted one detail: how to pick modern vs. traditional, in
netdev_is_modern().

We want to pick based on the value of parameter "type".  But how to
extract it from the option argument?

Parsing the option argument, either the modern or the traditional way,
extracts it for us, but only if parsing succeeds.

If parsing fails, there is no good option.  No matter which parser we
pick, it'll be the wrong one for some arguments, and the error
reporting will be confusing.

Fortunately, the traditional parser accepts *anything* when called in
a certain way.  This maximizes our chance to extract the value of
"type", and in turn minimizes the risk of confusing error reporting.

Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: Stefano Brivio <sbrivio@redhat.com>
Acked-by: Markus Armbruster <armbru@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2022-10-28 13:28:52 +08:00

84 lines
3.2 KiB
C

/*
* QEMU System Emulator
*
* Copyright (c) 2003-2008 Fabrice Bellard
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#ifndef QEMU_NET_CLIENTS_H
#define QEMU_NET_CLIENTS_H
#include "net/net.h"
int net_init_dump(const Netdev *netdev, const char *name,
NetClientState *peer, Error **errp);
#ifdef CONFIG_SLIRP
int net_init_slirp(const Netdev *netdev, const char *name,
NetClientState *peer, Error **errp);
#endif
int net_init_hubport(const Netdev *netdev, const char *name,
NetClientState *peer, Error **errp);
int net_init_socket(const Netdev *netdev, const char *name,
NetClientState *peer, Error **errp);
int net_init_stream(const Netdev *netdev, const char *name,
NetClientState *peer, Error **errp);
int net_init_dgram(const Netdev *netdev, const char *name,
NetClientState *peer, Error **errp);
int net_init_tap(const Netdev *netdev, const char *name,
NetClientState *peer, Error **errp);
int net_init_bridge(const Netdev *netdev, const char *name,
NetClientState *peer, Error **errp);
int net_init_l2tpv3(const Netdev *netdev, const char *name,
NetClientState *peer, Error **errp);
#ifdef CONFIG_VDE
int net_init_vde(const Netdev *netdev, const char *name,
NetClientState *peer, Error **errp);
#endif
#ifdef CONFIG_NETMAP
int net_init_netmap(const Netdev *netdev, const char *name,
NetClientState *peer, Error **errp);
#endif
int net_init_vhost_user(const Netdev *netdev, const char *name,
NetClientState *peer, Error **errp);
int net_init_vhost_vdpa(const Netdev *netdev, const char *name,
NetClientState *peer, Error **errp);
#ifdef CONFIG_VMNET
int net_init_vmnet_host(const Netdev *netdev, const char *name,
NetClientState *peer, Error **errp);
int net_init_vmnet_shared(const Netdev *netdev, const char *name,
NetClientState *peer, Error **errp);
int net_init_vmnet_bridged(const Netdev *netdev, const char *name,
NetClientState *peer, Error **errp);
#endif /* CONFIG_VMNET */
#endif /* QEMU_NET_CLIENTS_H */