From: Vladislav Yaroshchuk <yaroshchuk2...@gmail.com>
The vmnet framework is an API for virtual machines to read and write
packets.
The API allows a Guest OS interface to be in host mode or shared
mode. Interfaces in host mode can communicate with the native host
system and other interfaces running in host mode. In shared mode, the
network interface can send and receive packets to the Internet, the
native host, and other interfaces running in sharing mode.
Create separate netdevs for each vmnet operating mode:
- vmnet-host
- vmnet-shared
- vmnet-bridged
Signed-off-by: Vladislav Yaroshchuk <yaroshchuk2...@gmail.com>
Signed-off-by: Jason Wang <jasow...@redhat.com>
---
net/clients.h | 11 +++++
net/meson.build | 7 +++
net/net.c | 10 ++++
net/vmnet-bridged.m | 25 ++++++++++
net/vmnet-common.m | 19 ++++++++
net/vmnet-host.c | 24 ++++++++++
net/vmnet-shared.c | 25 ++++++++++
net/vmnet_int.h | 25 ++++++++++
qapi/net.json | 132 +++++++++++++++++++++++++++++++++++++++++++++++++++-
9 files changed, 276 insertions(+), 2 deletions(-)
create mode 100644 net/vmnet-bridged.m
create mode 100644 net/vmnet-common.m
create mode 100644 net/vmnet-host.c
create mode 100644 net/vmnet-shared.c
create mode 100644 net/vmnet_int.h
diff --git a/net/clients.h b/net/clients.h
index 92f9b59..c915778 100644
--- a/net/clients.h
+++ b/net/clients.h
@@ -63,4 +63,15 @@ int net_init_vhost_user(const Netdev *netdev, const char
*name,
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 */
diff --git a/net/meson.build b/net/meson.build
index 847bc2a..00a88c4 100644
--- a/net/meson.build
+++ b/net/meson.build
@@ -42,4 +42,11 @@ softmmu_ss.add(when: 'CONFIG_POSIX', if_true:
files(tap_posix))
softmmu_ss.add(when: 'CONFIG_WIN32', if_true: files('tap-win32.c'))
softmmu_ss.add(when: 'CONFIG_VHOST_NET_VDPA', if_true: files('vhost-vdpa.c'))
+vmnet_files = files(
+ 'vmnet-common.m',
+ 'vmnet-bridged.m',
+ 'vmnet-host.c',
+ 'vmnet-shared.c'
+)
+softmmu_ss.add(when: vmnet, if_true: vmnet_files)
subdir('can')
diff --git a/net/net.c b/net/net.c
index f0d14db..1dbb64b 100644
--- a/net/net.c
+++ b/net/net.c
@@ -1021,6 +1021,11 @@ static int (* const
net_client_init_fun[NET_CLIENT_DRIVER__MAX])(
#ifdef CONFIG_L2TPV3
[NET_CLIENT_DRIVER_L2TPV3] = net_init_l2tpv3,
#endif
+#ifdef CONFIG_VMNET
+ [NET_CLIENT_DRIVER_VMNET_HOST] = net_init_vmnet_host,
+ [NET_CLIENT_DRIVER_VMNET_SHARED] = net_init_vmnet_shared,
+ [NET_CLIENT_DRIVER_VMNET_BRIDGED] = net_init_vmnet_bridged,
+#endif /* CONFIG_VMNET */
};
@@ -1107,6 +1112,11 @@ void show_netdevs(void)
#ifdef CONFIG_VHOST_VDPA
"vhost-vdpa",
#endif
+#ifdef CONFIG_VMNET
+ "vmnet-host",
+ "vmnet-shared",
+ "vmnet-bridged",
+#endif
};
qemu_printf("Available netdev backend types:\n");
diff --git a/net/vmnet-bridged.m b/net/vmnet-bridged.m
new file mode 100644
index 0000000..4e42a90
--- /dev/null
+++ b/net/vmnet-bridged.m
@@ -0,0 +1,25 @@
+/*
+ * vmnet-bridged.m
+ *
+ * Copyright(c) 2021 Vladislav Yaroshchuk <yaroshchuk2...@gmail.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ *
+ */
+
+#include "qemu/osdep.h"
+#include "qapi/qapi-types-net.h"
+#include "vmnet_int.h"
+#include "clients.h"
+#include "qemu/error-report.h"
+#include "qapi/error.h"
+
+#include <vmnet/vmnet.h>
+
+int net_init_vmnet_bridged(const Netdev *netdev, const char *name,
+ NetClientState *peer, Error **errp)
+{
+ error_setg(errp, "vmnet-bridged is not implemented yet");
+ return -1;
+}
diff --git a/net/vmnet-common.m b/net/vmnet-common.m
new file mode 100644
index 0000000..f949eb6
--- /dev/null
+++ b/net/vmnet-common.m
@@ -0,0 +1,19 @@
+/*
+ * vmnet-common.m - network client wrapper for Apple vmnet.framework
+ *
+ * Copyright(c) 2021 Vladislav Yaroshchuk <yaroshchuk2...@gmail.com>
+ * Copyright(c) 2021 Phillip Tennen <phil...@axleos.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ *
+ */
+
+#include "qemu/osdep.h"
+#include "qapi/qapi-types-net.h"
+#include "vmnet_int.h"
+#include "clients.h"
+#include "qemu/error-report.h"
+#include "qapi/error.h"
+
+#include <vmnet/vmnet.h>
diff --git a/net/vmnet-host.c b/net/vmnet-host.c
new file mode 100644
index 0000000..4a5ef99
--- /dev/null
+++ b/net/vmnet-host.c
@@ -0,0 +1,24 @@
+/*
+ * vmnet-host.c
+ *
+ * Copyright(c) 2021 Vladislav Yaroshchuk <yaroshchuk2...@gmail.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ *
+ */
+
+#include "qemu/osdep.h"
+#include "qapi/qapi-types-net.h"
+#include "vmnet_int.h"
+#include "clients.h"
+#include "qemu/error-report.h"
+#include "qapi/error.h"
+
+#include <vmnet/vmnet.h>
+
+int net_init_vmnet_host(const Netdev *netdev, const char *name,
+ NetClientState *peer, Error **errp) {
+ error_setg(errp, "vmnet-host is not implemented yet");
+ return -1;
+}
diff --git a/net/vmnet-shared.c b/net/vmnet-shared.c
new file mode 100644
index 0000000..f8c4a4f
--- /dev/null
+++ b/net/vmnet-shared.c
@@ -0,0 +1,25 @@
+/*
+ * vmnet-shared.c
+ *
+ * Copyright(c) 2021 Vladislav Yaroshchuk <yaroshchuk2...@gmail.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ *
+ */
+
+#include "qemu/osdep.h"
+#include "qapi/qapi-types-net.h"
+#include "vmnet_int.h"
+#include "clients.h"
+#include "qemu/error-report.h"
+#include "qapi/error.h"
+
+#include <vmnet/vmnet.h>
+
+int net_init_vmnet_shared(const Netdev *netdev, const char *name,
+ NetClientState *peer, Error **errp)
+{
+ error_setg(errp, "vmnet-shared is not implemented yet");
+ return -1;
+}
diff --git a/net/vmnet_int.h b/net/vmnet_int.h
new file mode 100644
index 0000000..c598225
--- /dev/null
+++ b/net/vmnet_int.h
@@ -0,0 +1,25 @@
+/*
+ * vmnet_int.h
+ *
+ * Copyright(c) 2021 Vladislav Yaroshchuk <yaroshchuk2...@gmail.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ *
+ */
+#ifndef VMNET_INT_H
+#define VMNET_INT_H
+
+#include "qemu/osdep.h"
+#include "vmnet_int.h"
+#include "clients.h"
+
+#include <vmnet/vmnet.h>
+
+typedef struct VmnetCommonState {
+ NetClientState nc;
+
+} VmnetCommonState;
+
+
+#endif /* VMNET_INT_H */
diff --git a/qapi/net.json b/qapi/net.json
index 7fab2e7..aa92eb5 100644
--- a/qapi/net.json
+++ b/qapi/net.json
@@ -453,6 +453,119 @@
'*queues': 'int' } }
##
+# @NetdevVmnetHostOptions:
+#
+# vmnet (host mode) network backend.
+#
+# Allows the vmnet interface to communicate with other vmnet
+# interfaces that are in host mode and also with the host.
+#
+# @start-address: The starting IPv4 address to use for the interface.
+# Must be in the private IP range (RFC 1918). Must be
+# specified along with @end-address and @subnet-mask.
+# This address is used as the gateway address. The
+# subsequent address up to and including end-address are
+# placed in the DHCP pool.
+#
+# @end-address: The DHCP IPv4 range end address to use for the
+# interface. Must be in the private IP range (RFC 1918).
+# Must be specified along with @start-address and
+# @subnet-mask.
+#
+# @subnet-mask: The IPv4 subnet mask to use on the interface. Must
+# be specified along with @start-address and @subnet-mask.
+#
+# @isolated: Enable isolation for this interface. Interface isolation
+# ensures that vmnet interface is not able to communicate
+# with any other vmnet interfaces. Only communication with
+# host is allowed.
+#
+# @net-uuid: The identifier (UUID) to uniquely identify the isolated
+# network vmnet interface should be added to. If
+# set, no DHCP service is provided for this interface and
+# network communication is allowed only with other interfaces
+# added to this network identified by the UUID.
+#
+# Since: 7.0
+##
+{ 'struct': 'NetdevVmnetHostOptions',
+ 'data': {
+ '*start-address': 'str',
+ '*end-address': 'str',
+ '*subnet-mask': 'str',
+ '*isolated': 'bool',
+ '*net-uuid': 'str' },
+ 'if': 'CONFIG_VMNET' }
+
+##
+# @NetdevVmnetSharedOptions:
+#
+# vmnet (shared mode) network backend.
+#
+# Allows traffic originating from the vmnet interface to reach the
+# Internet through a network address translator (NAT).
+# The vmnet interface can communicate with the host and with
+# other shared mode interfaces on the same subnet. If no DHCP
+# settings, subnet mask and IPv6 prefix specified, the interface can
+# communicate with any of other interfaces in shared mode.
+#
+# @start-address: The starting IPv4 address to use for the interface.
+# Must be in the private IP range (RFC 1918). Must be
+# specified along with @end-address and @subnet-mask.
+# This address is used as the gateway address. The
+# subsequent address up to and including end-address are
+# placed in the DHCP pool.
+#
+# @end-address: The DHCP IPv4 range end address to use for the
+# interface. Must be in the private IP range (RFC 1918).
+# Must be specified along with @start-address and @subnet-mask.
+#
+# @subnet-mask: The IPv4 subnet mask to use on the interface. Must
+# be specified along with @start-address and @subnet-mask.
+#
+# @isolated: Enable isolation for this interface. Interface isolation
+# ensures that vmnet interface is not able to communicate
+# with any other vmnet interfaces. Only communication with
+# host is allowed.
+#
+# @nat66-prefix: The IPv6 prefix to use into guest network. Must be a
+# unique local address i.e. start with fd00::/8 and have
+# length of 64.
+#
+# Since: 7.0
+##
+{ 'struct': 'NetdevVmnetSharedOptions',
+ 'data': {
+ '*start-address': 'str',
+ '*end-address': 'str',
+ '*subnet-mask': 'str',
+ '*isolated': 'bool',
+ '*nat66-prefix': 'str' },
+ 'if': 'CONFIG_VMNET' }
+
+##
+# @NetdevVmnetBridgedOptions:
+#
+# vmnet (bridged mode) network backend.
+#
+# Bridges the vmnet interface with a physical network interface.
+#
+# @ifname: The name of the physical interface to be bridged.
+#
+# @isolated: Enable isolation for this interface. Interface isolation
+# ensures that vmnet interface is not able to communicate
+# with any other vmnet interfaces. Only communication with
+# host is allowed.
+#
+# Since: 7.0
+##
+{ 'struct': 'NetdevVmnetBridgedOptions',
+ 'data': {
+ 'ifname': 'str',
+ '*isolated': 'str' },
+ 'if': 'CONFIG_VMNET' }
+
+##
# @NetClientDriver:
#
# Available netdev drivers.
@@ -460,10 +573,16 @@
# Since: 2.7
#
# @vhost-vdpa since 5.1
+# @vmnet-host since 7.0
+# @vmnet-shared since 7.0
+# @vmnet-bridged since 7.0
##
{ 'enum': 'NetClientDriver',
'data': [ 'none', 'nic', 'user', 'tap', 'l2tpv3', 'socket', 'vde',
- 'bridge', 'hubport', 'netmap', 'vhost-user', 'vhost-vdpa' ] }
+ 'bridge', 'hubport', 'netmap', 'vhost-user', 'vhost-vdpa',
+ { 'name': 'vmnet-host', 'if': 'CONFIG_VMNET' },
+ { 'name': 'vmnet-shared', 'if': 'CONFIG_VMNET' },
+ { 'name': 'vmnet-bridged', 'if': 'CONFIG_VMNET' }] }
##
# @Netdev:
@@ -477,6 +596,9 @@
# Since: 1.2
#
# 'l2tpv3' - since 2.1
+# 'vmnet-host' - since 7.0
+# 'vmnet-shared' - since 7.0
+# 'vmnet-bridged' - since 7.0
##
{ 'union': 'Netdev',
'base': { 'id': 'str', 'type': 'NetClientDriver' },
@@ -492,7 +614,13 @@
'hubport': 'NetdevHubPortOptions',
'netmap': 'NetdevNetmapOptions',
'vhost-user': 'NetdevVhostUserOptions',
- 'vhost-vdpa': 'NetdevVhostVDPAOptions' } }
+ 'vhost-vdpa': 'NetdevVhostVDPAOptions',
+ 'vmnet-host': { 'type': 'NetdevVmnetHostOptions',
+ 'if': 'CONFIG_VMNET' },
+ 'vmnet-shared': { 'type': 'NetdevVmnetSharedOptions',
+ 'if': 'CONFIG_VMNET' },
+ 'vmnet-bridged': { 'type': 'NetdevVmnetBridgedOptions',
+ 'if': 'CONFIG_VMNET' } } }
##
# @RxState:
--
2.7.4
