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When preparing a SCSI <hostdev/> with passthrough of a host SCSI adapter (i.e. no protocol), a virStorageSource structure is initialized and stored inside virDomainHostdevDef. But the source structure is filled in many places, with almost the same code. Firstly, qemuProcessPrepareHostHostdev() and qemuConnectDomainXMLToNativePrepareHostHostdev() are the same. Secondly, qemuDomainPrepareHostdev() allocates the src structure, only to let qemuProcessPrepareHostHostdev() fill src->path later. Well, src->path can be filled at the same place where the src structure is allocated (qemuDomainPrepareHostdev()) which renders the other two functions needless. Signed-off-by: Michal Privoznik <mprivozn@redhat.com> Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
270 lines
6.2 KiB
C
270 lines
6.2 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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#include <config.h>
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#define LIBVIRT_VIRIDENTITYPRIV_H_ALLOW
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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 "viridentitypriv.h"
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#include "virmock.h"
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#include "virnetdev.h"
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#include "virnetdevbandwidth.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 "virscsivhost.h"
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#include "virtpm.h"
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#include "virutil.h"
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#include "qemu/qemu_interface.h"
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#include "qemu/qemu_command.h"
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#include <unistd.h>
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#include <fcntl.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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GDateTime *g_date_time_new_now_utc(void)
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{
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return g_date_time_new_from_unix_utc(1234567890);
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}
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GDateTime *g_date_time_new_now_local(void)
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{
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return g_date_time_new_from_unix_local(1234567890);
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}
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char *
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virTPMCreateCancelPath(const char *devpath)
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{
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(void)devpath;
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return g_strdup("/sys/class/misc/tpm0/device/cancel");
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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 G_GNUC_UNUSED)
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{
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return LLONG_MAX;
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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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char *
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virSCSIDeviceGetSgName(const char *sysfs_prefix G_GNUC_UNUSED,
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const char *adapter G_GNUC_UNUSED,
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unsigned int bus G_GNUC_UNUSED,
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unsigned int target G_GNUC_UNUSED,
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unsigned long long unit G_GNUC_UNUSED)
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{
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return g_strdup_printf("sg0");
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}
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int
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virNetDevTapCreate(char **ifname,
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const char *tunpath G_GNUC_UNUSED,
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int *tapfd,
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size_t tapfdSize,
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unsigned int flags G_GNUC_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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if (STREQ_NULLABLE(*ifname, "mytap0")) {
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return 0;
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} else {
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VIR_FREE(*ifname);
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*ifname = g_strdup("vnet0");
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return 0;
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}
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}
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int
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virNetDevSetMAC(const char *ifname G_GNUC_UNUSED,
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const virMacAddr *macaddr G_GNUC_UNUSED)
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{
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return 0;
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}
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int
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virNetDevExists(const char *ifname)
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{
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return STREQ(ifname, "mytap0");
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}
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int virNetDevIPAddrAdd(const char *ifname G_GNUC_UNUSED,
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virSocketAddr *addr G_GNUC_UNUSED,
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virSocketAddr *peer G_GNUC_UNUSED,
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unsigned int prefix G_GNUC_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 G_GNUC_UNUSED,
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bool online G_GNUC_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 G_GNUC_UNUSED,
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const char *script G_GNUC_UNUSED)
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{
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return 0;
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}
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char *
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virHostGetDRMRenderNode(void)
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{
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return g_strdup("/dev/dri/foo");
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}
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static void (*real_virCommandPassFD)(virCommand *cmd, int fd, unsigned int flags);
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static const int testCommandPassSafeFDs[] = { 1730, 1731, 1732 };
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void
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virCommandPassFD(virCommand *cmd,
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int fd,
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unsigned int flags)
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{
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size_t i;
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for (i = 0; i < G_N_ELEMENTS(testCommandPassSafeFDs); i++) {
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if (testCommandPassSafeFDs[i] == fd) {
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if (!real_virCommandPassFD)
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VIR_MOCK_REAL_INIT(virCommandPassFD);
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real_virCommandPassFD(cmd, fd, flags);
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return;
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}
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}
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}
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int
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virNetDevOpenvswitchGetVhostuserIfname(const char *path G_GNUC_UNUSED,
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bool server G_GNUC_UNUSED,
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char **ifname)
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{
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*ifname = g_strdup("vhost-user0");
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return 1;
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}
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int
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qemuInterfaceOpenVhostNet(virDomainObj *vm G_GNUC_UNUSED,
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virDomainNetDef *net)
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{
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qemuDomainNetworkPrivate *netpriv = QEMU_DOMAIN_NETWORK_PRIVATE(net);
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size_t vhostfdSize = net->driver.virtio.queues;
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size_t i;
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if (!vhostfdSize)
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vhostfdSize = 1;
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if (!virDomainNetIsVirtioModel(net))
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return 0;
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for (i = 0; i < vhostfdSize; i++) {
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g_autofree char *name = g_strdup_printf("vhostfd-%s%zu", net->info.alias, i);
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int fd = STDERR_FILENO + 42 + i;
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netpriv->vhostfds = g_slist_prepend(netpriv->vhostfds, qemuFDPassDirectNew(name, &fd));
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}
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netpriv->vhostfds = g_slist_reverse(netpriv->vhostfds);
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return 0;
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}
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int
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qemuOpenChrChardevUNIXSocket(const virDomainChrSourceDef *dev G_GNUC_UNUSED)
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{
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/* We need to return an FD number for a UNIX listener socket,
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* which will be given to QEMU via a CLI arg. We need a fixed
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* number to get stable tests. This is obviously not a real
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* FD number, so when virCommand closes the FD in the parent
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* it will get EINVAL, but that's (hopefully) not going to
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* be a problem....
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*/
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if (fcntl(1729, F_GETFD) != -1)
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abort();
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return 1729;
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}
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int
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qemuBuildTPMOpenBackendFDs(const char *tpmdev G_GNUC_UNUSED,
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int *tpmfd,
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int *cancelfd)
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{
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if (fcntl(1730, F_GETFD) != -1 ||
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fcntl(1731, F_GETFD) != -1)
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abort();
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*tpmfd = 1730;
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*cancelfd = 1731;
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return 0;
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}
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int
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virNetDevBandwidthSetRootQDisc(const char *ifname G_GNUC_UNUSED,
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const char *qdisc G_GNUC_UNUSED)
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{
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return 0;
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}
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int
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qemuInterfaceVDPAConnect(virDomainNetDef *net G_GNUC_UNUSED)
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{
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if (fcntl(1732, F_GETFD) != -1)
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abort();
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return 1732;
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}
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char *
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virIdentityEnsureSystemToken(void)
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{
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return g_strdup("3de80bcbf22d4833897f1638e01be9b2");
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}
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