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Move virstat.c code to virnetdevtap.c

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This is just a code move of virstat.c to virnetdevtap.c
This commit is contained in:
Mehdi Abaakouk 2016-11-18 23:51:15 +01:00 committed by Michal Privoznik
parent 9b6de7c506
commit e0d893e86d
13 changed files with 151 additions and 221 deletions
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1
po/POTFILES.in
View File

@ -242,7 +242,6 @@ src/util/virscsivhost.c
src/util/virsecret.c
src/util/virsexpr.c
src/util/virsocketaddr.c
src/util/virstats.c
src/util/virstorageencryption.c
src/util/virstoragefile.c
src/util/virstring.c

1
src/Makefile.am
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@ -169,7 +169,6 @@ UTIL_SOURCES = \
util/virsecret.c util/virsecret.h \
util/virsexpr.c util/virsexpr.h \
util/virsocketaddr.h util/virsocketaddr.c \
util/virstats.c util/virstats.h \
util/virstorageencryption.c util/virstorageencryption.h \
util/virstoragefile.c util/virstoragefile.h \
util/virstring.h util/virstring.c \

4
src/libvirt_private.syms
View File

@ -2058,6 +2058,7 @@ virNetDevTapCreateInBridgePort;
virNetDevTapDelete;
virNetDevTapGetName;
virNetDevTapGetRealDeviceName;
virNetDevTapInterfaceStats;
# util/virnetdevveth.h
@ -2396,9 +2397,6 @@ virSocketAddrSetIPv6Addr;
virSocketAddrSetIPv6AddrNetOrder;
virSocketAddrSetPort;
# util/virstats.h
virNetDevTapInterfaceStats;
# util/virstorageencryption.h
virStorageEncryptionFormat;
virStorageEncryptionFree;

2
src/libxl/libxl_driver.c
View File

@ -61,7 +61,7 @@
#include "virhostdev.h"
#include "network/bridge_driver.h"
#include "locking/domain_lock.h"
#include "virstats.h"
#include "virnetdevtap.h"
#include "cpu/cpu.h"
#define VIR_FROM_THIS VIR_FROM_LIBXL

1
src/lxc/lxc_driver.c
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@ -61,7 +61,6 @@
#include "virhostcpu.h"
#include "virhostmem.h"
#include "viruuid.h"
#include "virstats.h"
#include "virhook.h"
#include "virfile.h"
#include "virpidfile.h"

2
src/openvz/openvz_driver.c
View File

@ -57,7 +57,7 @@
#include "virlog.h"
#include "vircommand.h"
#include "viruri.h"
#include "virstats.h"
#include "virnetdevtap.h"
#include "virstring.h"
#define VIR_FROM_THIS VIR_FROM_OPENVZ

2
src/qemu/qemu_driver.c
View File

@ -65,7 +65,7 @@
#include "nodeinfo.h"
#include "virhostcpu.h"
#include "virhostmem.h"
#include "virstats.h"
#include "virnetdevtap.h"
#include "virnetdevopenvswitch.h"
#include "capabilities.h"
#include "viralloc.h"

1
src/uml/uml_driver.c
View File

@ -48,7 +48,6 @@
#include "nodeinfo.h"
#include "virhostcpu.h"
#include "virhostmem.h"
#include "virstats.h"
#include "capabilities.h"
#include "viralloc.h"
#include "viruuid.h"

143
src/util/virnetdevtap.c
View File

@ -33,7 +33,13 @@
#include "viralloc.h"
#include "virlog.h"
#include "virstring.h"
#include "datatypes.h"
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <regex.h>
#include <dirent.h>
#include <sys/types.h>
#include <sys/ioctl.h>
@ -44,6 +50,9 @@
#elif defined(__FreeBSD__)
# include <net/if_tap.h>
#endif
#if defined(HAVE_GETIFADDRS) && defined(AF_LINK)
# include <ifaddrs.h>
#endif
#define VIR_FROM_THIS VIR_FROM_NONE
@ -601,3 +610,137 @@ int virNetDevTapCreateInBridgePort(const char *brname,
return -1;
}
/*-------------------- interface stats --------------------*/
/* Just reads the named interface, so not Xen or QEMU-specific.
* NB. Caller must check that libvirt user is trying to query
* the interface of a domain they own. We do no such checking.
*/
#ifdef __linux__
int
virNetDevTapInterfaceStats(const char *ifname,
virDomainInterfaceStatsPtr stats)
{
int ifname_len;
FILE *fp;
char line[256], *colon;
fp = fopen("/proc/net/dev", "r");
if (!fp) {
virReportSystemError(errno, "%s",
_("Could not open /proc/net/dev"));
return -1;
}
ifname_len = strlen(ifname);
while (fgets(line, sizeof(line), fp)) {
long long dummy;
long long rx_bytes;
long long rx_packets;
long long rx_errs;
long long rx_drop;
long long tx_bytes;
long long tx_packets;
long long tx_errs;
long long tx_drop;
/* The line looks like:
* " eth0:..."
* Split it at the colon.
*/
colon = strchr(line, ':');
if (!colon) continue;
*colon = '\0';
if (colon-ifname_len >= line &&
STREQ(colon-ifname_len, ifname)) {
/* IMPORTANT NOTE!
* /proc/net/dev vif<domid>.nn sees the network from the point
* of view of dom0 / hypervisor. So bytes TRANSMITTED by dom0
* are bytes RECEIVED by the domain. That's why the TX/RX fields
* appear to be swapped here.
*/
if (sscanf(colon+1,
"%lld %lld %lld %lld %lld %lld %lld %lld %lld %lld %lld %lld %lld %lld %lld %lld",
&tx_bytes, &tx_packets, &tx_errs, &tx_drop,
&dummy, &dummy, &dummy, &dummy,
&rx_bytes, &rx_packets, &rx_errs, &rx_drop,
&dummy, &dummy, &dummy, &dummy) != 16)
continue;
stats->rx_bytes = rx_bytes;
stats->rx_packets = rx_packets;
stats->rx_errs = rx_errs;
stats->rx_drop = rx_drop;
stats->tx_bytes = tx_bytes;
stats->tx_packets = tx_packets;
stats->tx_errs = tx_errs;
stats->tx_drop = tx_drop;
VIR_FORCE_FCLOSE(fp);
return 0;
}
}
VIR_FORCE_FCLOSE(fp);
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("/proc/net/dev: Interface not found"));
return -1;
}
#elif defined(HAVE_GETIFADDRS) && defined(AF_LINK)
int
virNetDevTapInterfaceStats(const char *ifname,
virDomainInterfaceStatsPtr stats)
{
struct ifaddrs *ifap, *ifa;
struct if_data *ifd;
int ret = -1;
if (getifaddrs(&ifap) < 0) {
virReportSystemError(errno, "%s",
_("Could not get interface list"));
return -1;
}
for (ifa = ifap; ifa; ifa = ifa->ifa_next) {
if (ifa->ifa_addr->sa_family != AF_LINK)
continue;
if (STREQ(ifa->ifa_name, ifname)) {
ifd = (struct if_data *)ifa->ifa_data;
stats->tx_bytes = ifd->ifi_ibytes;
stats->tx_packets = ifd->ifi_ipackets;
stats->tx_errs = ifd->ifi_ierrors;
stats->tx_drop = ifd->ifi_iqdrops;
stats->rx_bytes = ifd->ifi_obytes;
stats->rx_packets = ifd->ifi_opackets;
stats->rx_errs = ifd->ifi_oerrors;
# ifdef HAVE_STRUCT_IF_DATA_IFI_OQDROPS
stats->rx_drop = ifd->ifi_oqdrops;
# else
stats->rx_drop = 0;
# endif
ret = 0;
break;
}
}
if (ret < 0)
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("Interface not found"));
freeifaddrs(ifap);
return ret;
}
#else
int
virNetDevTapInterfaceStats(const char *ifname ATTRIBUTE_UNUSED,
virDomainInterfaceStatsPtr stats ATTRIBUTE_UNUSED)
{
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("interface stats not implemented on this platform"));
return -1;
}
#endif /* __linux__ */

3
src/util/virnetdevtap.h
View File

@ -75,5 +75,8 @@ int virNetDevTapCreateInBridgePort(const char *brname,
ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2) ATTRIBUTE_NONNULL(3)
ATTRIBUTE_RETURN_CHECK;
int virNetDevTapInterfaceStats(const char *ifname,
virDomainInterfaceStatsPtr stats)
ATTRIBUTE_NONNULL(1) ATTRIBUTE_RETURN_CHECK;
#endif /* __VIR_NETDEV_TAP_H__ */

178
src/util/virstats.c
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@ -1,178 +0,0 @@
/*
* virstats.c: Block and network stats.
*
* Copyright (C) 2007-2010, 2014 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/>.
*
* Richard W.M. Jones <rjones@redhat.com>
*/
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <fcntl.h>
#include <string.h>
#include <unistd.h>
#include <regex.h>
#if defined(HAVE_GETIFADDRS) && defined(AF_LINK)
# include <net/if.h>
# include <ifaddrs.h>
#endif
#include "virerror.h"
#include "datatypes.h"
#include "virstats.h"
#include "viralloc.h"
#include "virfile.h"
#define VIR_FROM_THIS VIR_FROM_STATS_LINUX
/*-------------------- interface stats --------------------*/
/* Just reads the named interface, so not Xen or QEMU-specific.
* NB. Caller must check that libvirt user is trying to query
* the interface of a domain they own. We do no such checking.
*/
#ifdef __linux__
int
virNetDevTapInterfaceStats(const char *ifname,
virDomainInterfaceStatsPtr stats)
{
int ifname_len;
FILE *fp;
char line[256], *colon;
fp = fopen("/proc/net/dev", "r");
if (!fp) {
virReportSystemError(errno, "%s",
_("Could not open /proc/net/dev"));
return -1;
}
ifname_len = strlen(ifname);
while (fgets(line, sizeof(line), fp)) {
long long dummy;
long long rx_bytes;
long long rx_packets;
long long rx_errs;
long long rx_drop;
long long tx_bytes;
long long tx_packets;
long long tx_errs;
long long tx_drop;
/* The line looks like:
* " eth0:..."
* Split it at the colon.
*/
colon = strchr(line, ':');
if (!colon) continue;
*colon = '\0';
if (colon - ifname_len >= line &&
STREQ(colon - ifname_len, ifname)) {
/* IMPORTANT NOTE!
* /proc/net/dev vif<domid>.nn sees the network from the point
* of view of dom0 / hypervisor. So bytes TRANSMITTED by dom0
* are bytes RECEIVED by the domain. That's why the TX/RX fields
* appear to be swapped here.
*/
if (sscanf(colon + 1,
"%lld %lld %lld %lld %lld %lld %lld %lld %lld %lld %lld %lld %lld %lld %lld %lld",
&tx_bytes, &tx_packets, &tx_errs, &tx_drop,
&dummy, &dummy, &dummy, &dummy,
&rx_bytes, &rx_packets, &rx_errs, &rx_drop,
&dummy, &dummy, &dummy, &dummy) != 16)
continue;
stats->rx_bytes = rx_bytes;
stats->rx_packets = rx_packets;
stats->rx_errs = rx_errs;
stats->rx_drop = rx_drop;
stats->tx_bytes = tx_bytes;
stats->tx_packets = tx_packets;
stats->tx_errs = tx_errs;
stats->tx_drop = tx_drop;
VIR_FORCE_FCLOSE(fp);
return 0;
}
}
VIR_FORCE_FCLOSE(fp);
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("/proc/net/dev: Interface not found"));
return -1;
}
#elif defined(HAVE_GETIFADDRS) && defined(AF_LINK)
int
virNetDevTapInterfaceStats(const char *ifname,
virDomainInterfaceStatsPtr stats)
{
struct ifaddrs *ifap, *ifa;
struct if_data *ifd;
int ret = -1;
if (getifaddrs(&ifap) < 0) {
virReportSystemError(errno, "%s",
_("Could not get interface list"));
return -1;
}
for (ifa = ifap; ifa; ifa = ifa->ifa_next) {
if (ifa->ifa_addr->sa_family != AF_LINK)
continue;
if (STREQ(ifa->ifa_name, ifname)) {
ifd = (struct if_data *)ifa->ifa_data;
stats->tx_bytes = ifd->ifi_ibytes;
stats->tx_packets = ifd->ifi_ipackets;
stats->tx_errs = ifd->ifi_ierrors;
stats->tx_drop = ifd->ifi_iqdrops;
stats->rx_bytes = ifd->ifi_obytes;
stats->rx_packets = ifd->ifi_opackets;
stats->rx_errs = ifd->ifi_oerrors;
# ifdef HAVE_STRUCT_IF_DATA_IFI_OQDROPS
stats->rx_drop = ifd->ifi_oqdrops;
# else
stats->rx_drop = 0;
# endif
ret = 0;
break;
}
}
if (ret < 0)
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("Interface not found"));
freeifaddrs(ifap);
return ret;
}
#else
int
virNetDevTapInterfaceStats(const char *ifname ATTRIBUTE_UNUSED,
virDomainInterfaceStatsPtr stats ATTRIBUTE_UNUSED)
{
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("interface stats not implemented on this platform"));
return -1;
}
#endif /* __linux__ */

32
src/util/virstats.h
View File

@ -1,32 +0,0 @@
/*
* virstats.h: Block and network stats.
*
* Copyright (C) 2007 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/>.
*
* Richard W.M. Jones <rjones@redhat.com>
*/
#ifndef __STATS_LINUX_H__
# define __STATS_LINUX_H__
# include "internal.h"
int virNetDevTapInterfaceStats(const char *ifname,
virDomainInterfaceStatsPtr stats)
ATTRIBUTE_NONNULL(1) ATTRIBUTE_RETURN_CHECK;
#endif /* __STATS_LINUX_H__ */

2
src/xen/xen_hypervisor.c
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@ -68,7 +68,7 @@
#include "xen_driver.h"
#include "xen_hypervisor.h"
#include "xs_internal.h"
#include "virstats.h"
#include "virnetdevtap.h"
#include "block_stats.h"
#include "xend_internal.h"
#include "virbuffer.h"