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https://gitlab.com/libvirt/libvirt.git
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57b5e27d3d
Based on work of Mehdi Abaakouk <sileht@sileht.net>. When parsing vhost-user interface XML and no ifname is found we can try to fill it in in post parse callback. The way this works is we try to make up interface name from given socket path and then ask openvswitch whether it knows the interface. Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
191 lines
4.2 KiB
C
191 lines
4.2 KiB
C
/*
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* Copyright (C) 2014-2016 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see
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* <http://www.gnu.org/licenses/>.
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*
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* Author: Michal Privoznik <mprivozn@redhat.com>
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*/
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#include <config.h>
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#include "internal.h"
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#include "viralloc.h"
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#include "vircommand.h"
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#include "vircrypto.h"
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#include "virmock.h"
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#include "virnetdev.h"
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#include "virnetdevip.h"
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#include "virnetdevtap.h"
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#include "virnetdevopenvswitch.h"
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#include "virnuma.h"
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#include "virrandom.h"
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#include "virscsi.h"
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#include "virscsivhost.h"
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#include "virstring.h"
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#include "virtpm.h"
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#include "virutil.h"
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#include <time.h>
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#include <unistd.h>
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#define VIR_FROM_THIS VIR_FROM_NONE
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long virGetSystemPageSize(void)
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{
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return 4096;
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}
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time_t time(time_t *t)
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{
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const time_t ret = 1234567890;
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if (t)
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*t = ret;
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return ret;
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}
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int
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virNumaGetMaxNode(void)
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{
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const int maxnodesNum = 7;
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return maxnodesNum;
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}
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#if WITH_NUMACTL && HAVE_NUMA_BITMASK_ISBITSET
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/*
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* In case libvirt is compiled with full NUMA support, we need to mock
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* this function in order to fake what numa nodes are available.
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*/
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bool
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virNumaNodeIsAvailable(int node)
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{
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return node >= 0 && node <= virNumaGetMaxNode();
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}
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#endif /* WITH_NUMACTL && HAVE_NUMA_BITMASK_ISBITSET */
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char *
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virTPMCreateCancelPath(const char *devpath)
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{
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char *path;
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(void)devpath;
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ignore_value(VIR_STRDUP(path, "/sys/class/misc/tpm0/device/cancel"));
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return path;
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}
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/**
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* Large values for memory would fail on 32 bit systems, despite having
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* variables that support it.
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*/
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unsigned long long
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virMemoryMaxValue(bool capped ATTRIBUTE_UNUSED)
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{
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return LLONG_MAX;
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}
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char *
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virSCSIDeviceGetSgName(const char *sysfs_prefix ATTRIBUTE_UNUSED,
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const char *adapter ATTRIBUTE_UNUSED,
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unsigned int bus ATTRIBUTE_UNUSED,
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unsigned int target ATTRIBUTE_UNUSED,
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unsigned long long unit ATTRIBUTE_UNUSED)
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{
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char *ret;
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ignore_value(VIR_STRDUP(ret, "sg0"));
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return ret;
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}
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int
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virSCSIVHostOpenVhostSCSI(int *vhostfd)
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{
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*vhostfd = STDERR_FILENO + 1;
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return 0;
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}
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int
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virNetDevTapCreate(char **ifname,
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const char *tunpath ATTRIBUTE_UNUSED,
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int *tapfd,
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size_t tapfdSize,
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unsigned int flags ATTRIBUTE_UNUSED)
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{
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size_t i;
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for (i = 0; i < tapfdSize; i++)
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tapfd[i] = STDERR_FILENO + 1 + i;
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VIR_FREE(*ifname);
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return VIR_STRDUP(*ifname, "vnet0");
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}
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int
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virNetDevSetMAC(const char *ifname ATTRIBUTE_UNUSED,
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const virMacAddr *macaddr ATTRIBUTE_UNUSED)
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{
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return 0;
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}
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int virNetDevIPAddrAdd(const char *ifname ATTRIBUTE_UNUSED,
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virSocketAddr *addr ATTRIBUTE_UNUSED,
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virSocketAddr *peer ATTRIBUTE_UNUSED,
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unsigned int prefix ATTRIBUTE_UNUSED)
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{
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return 0;
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}
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int
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virNetDevSetOnline(const char *ifname ATTRIBUTE_UNUSED,
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bool online ATTRIBUTE_UNUSED)
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{
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return 0;
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}
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int
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virNetDevRunEthernetScript(const char *ifname ATTRIBUTE_UNUSED,
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const char *script ATTRIBUTE_UNUSED)
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{
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return 0;
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}
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void
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virCommandPassFD(virCommandPtr cmd ATTRIBUTE_UNUSED,
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int fd ATTRIBUTE_UNUSED,
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unsigned int flags ATTRIBUTE_UNUSED)
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{
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/* nada */
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}
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uint8_t *
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virCryptoGenerateRandom(size_t nbytes)
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{
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uint8_t *buf;
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if (VIR_ALLOC_N(buf, nbytes) < 0)
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return NULL;
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ignore_value(virRandomBytes(buf, nbytes));
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return buf;
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}
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int
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virNetDevOpenvswitchGetVhostuserIfname(const char *path ATTRIBUTE_UNUSED,
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char **ifname)
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{
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return VIR_STRDUP(*ifname, "vhost-user0");
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}
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