libvirt/src/util/virnetdevtap.h
Shi Lei c36cad1a31 netdevtap: Use common helper function to create unique tap name
Simplify GenerateName/ReserveName for netdevtap by using common
functions.

Signed-off-by: Shi Lei <shi_lei@massclouds.com>
Reviewed-by: Laine Stump <laine@redhat.com>
2020-12-15 13:35:27 -05:00

108 lines
4.4 KiB
C

/*
* Copyright (C) 2007-2011, 2013 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see
* <http://www.gnu.org/licenses/>.
*/
#pragma once
#include "internal.h"
#include "virnetdev.h"
#include "virnetdevvportprofile.h"
#include "virnetdevvlan.h"
#ifdef __FreeBSD__
/* This should be defined on OSes that don't automatically
* cleanup released devices */
# define VIR_NETDEV_TAP_REQUIRE_MANUAL_CLEANUP 1
#endif
int virNetDevTapCreate(char **ifname,
const char *tunpath,
int *tapfd,
size_t tapfdSize,
unsigned int flags)
ATTRIBUTE_NONNULL(1) G_GNUC_WARN_UNUSED_RESULT G_GNUC_NO_INLINE;
int virNetDevTapDelete(const char *ifname,
const char *tunpath)
ATTRIBUTE_NONNULL(1) G_GNUC_WARN_UNUSED_RESULT;
int virNetDevTapGetName(int tapfd, char **ifname)
ATTRIBUTE_NONNULL(2) G_GNUC_WARN_UNUSED_RESULT;
char* virNetDevTapGetRealDeviceName(char *ifname)
ATTRIBUTE_NONNULL(1) G_GNUC_WARN_UNUSED_RESULT G_GNUC_NO_INLINE;
typedef enum {
VIR_NETDEV_TAP_CREATE_NONE = 0,
/* Bring the interface up */
VIR_NETDEV_TAP_CREATE_IFUP = 1 << 0,
/* Enable IFF_VNET_HDR on the tap device */
VIR_NETDEV_TAP_CREATE_VNET_HDR = 1 << 1,
/* Set this interface's MAC as the bridge's MAC address */
VIR_NETDEV_TAP_CREATE_USE_MAC_FOR_BRIDGE = 1 << 2,
/* The device will persist after the file descriptor is closed */
VIR_NETDEV_TAP_CREATE_PERSIST = 1 << 3,
} virNetDevTapCreateFlags;
int
virNetDevTapAttachBridge(const char *tapname,
const char *brname,
const virMacAddr *macaddr,
const unsigned char *vmuuid,
const virNetDevVPortProfile *virtPortProfile,
const virNetDevVlan *virtVlan,
virTristateBool isolatedPort,
unsigned int mtu,
unsigned int *actualMTU)
ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2) ATTRIBUTE_NONNULL(3)
G_GNUC_WARN_UNUSED_RESULT;
int
virNetDevTapReattachBridge(const char *tapname,
const char *brname,
const virMacAddr *macaddr,
const unsigned char *vmuuid,
const virNetDevVPortProfile *virtPortProfile,
const virNetDevVlan *virtVlan,
virTristateBool isolatedPort,
unsigned int mtu,
unsigned int *actualMTU)
ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2) ATTRIBUTE_NONNULL(3)
G_GNUC_WARN_UNUSED_RESULT;
int virNetDevTapCreateInBridgePort(const char *brname,
char **ifname,
const virMacAddr *macaddr,
const unsigned char *vmuuid,
const char *tunpath,
int *tapfd,
size_t tapfdSize,
const virNetDevVPortProfile *virtPortProfile,
const virNetDevVlan *virtVlan,
virTristateBool isolatedPort,
virNetDevCoalescePtr coalesce,
unsigned int mtu,
unsigned int *actualMTU,
unsigned int flags)
ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2) ATTRIBUTE_NONNULL(3)
G_GNUC_WARN_UNUSED_RESULT G_GNUC_NO_INLINE;
int virNetDevTapInterfaceStats(const char *ifname,
virDomainInterfaceStatsPtr stats,
bool swapped)
G_GNUC_WARN_UNUSED_RESULT;