diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms
index 716628368a..acaaaabf1c 100644
--- a/src/libvirt_private.syms
+++ b/src/libvirt_private.syms
@@ -1742,6 +1742,7 @@ virNetDevSetPromiscuous;
virNetDevSetRcvAllMulti;
virNetDevSetRcvMulti;
virNetDevSetupControl;
+virNetDevSysfsFile;
virNetDevValidateConfig;
diff --git a/src/util/virnetdev.c b/src/util/virnetdev.c
index 9a6d4e7bfb..6ee692d192 100644
--- a/src/util/virnetdev.c
+++ b/src/util/virnetdev.c
@@ -1614,9 +1614,9 @@ int virNetDevValidateConfig(const char *ifname ATTRIBUTE_UNUSED,
#ifdef __linux__
# define NET_SYSFS "/sys/class/net/"
-static int
+int
virNetDevSysfsFile(char **pf_sysfs_device_link, const char *ifname,
- const char *file)
+ const char *file)
{
if (virAsprintf(pf_sysfs_device_link, NET_SYSFS "%s/%s", ifname, file) < 0)
diff --git a/src/util/virnetdev.h b/src/util/virnetdev.h
index fb0fd46fa0..3535319242 100644
--- a/src/util/virnetdev.h
+++ b/src/util/virnetdev.h
@@ -219,4 +219,9 @@ int virNetDevSetRcvAllMulti(const char *ifname, bool receive)
ATTRIBUTE_NONNULL(1) ATTRIBUTE_RETURN_CHECK;
int virNetDevGetRcvAllMulti(const char *ifname, bool *receive)
ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2) ATTRIBUTE_RETURN_CHECK;
+int virNetDevSysfsFile(char **pf_sysfs_device_link,
+ const char *ifname,
+ const char *file)
+ ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2) ATTRIBUTE_NONNULL(3)
+ ATTRIBUTE_RETURN_CHECK;
#endif /* __VIR_NETDEV_H__ */
diff --git a/tests/Makefile.am b/tests/Makefile.am
index 046cd085ce..9ebedc3620 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -176,6 +176,7 @@ test_programs = virshtest sockettest \
domainconftest \
virhostdevtest \
vircaps2xmltest \
+ virnetdevtest \
$(NULL)
if WITH_REMOTE
@@ -402,6 +403,7 @@ test_libraries = libshunload.la \
virnetserverclientmock.la \
vircgroupmock.la \
virpcimock.la \
+ virnetdevmock.la \
$(NULL)
if WITH_QEMU
test_libraries += libqemumonitortestutils.la \
@@ -1029,6 +1031,19 @@ virpcimock_la_LIBADD = $(GNULIB_LIBS) \
virpcimock_la_LDFLAGS = -module -avoid-version \
-rpath /evil/libtool/hack/to/force/shared/lib/creation
+virnetdevtest_SOURCES = \
+ virnetdevtest.c testutils.h testutils.c
+virnetdevtest_CFLAGS = $(AM_CFLAGS) $(LIBNL_CFLAGS)
+virnetdevtest_LDADD = $(LDADDS)
+
+virnetdevmock_la_SOURCES = \
+ virnetdevmock.c
+virnetdevmock_la_CFLAGS = $(AM_CFLAGS) $(LIBNL_CFLAGS)
+virnetdevmock_la_LIBADD = $(GNULIB_LIBS) \
+ ../src/libvirt.la
+virnetdevmock_la_LDFLAGS = -module -avoid-version \
+ -rpath /evil/libtool/hack/to/force/shared/lib/creation
+
if WITH_LINUX
virusbtest_SOURCES = \
virusbtest.c testutils.h testutils.c
diff --git a/tests/virnetdevmock.c b/tests/virnetdevmock.c
new file mode 100644
index 0000000000..a9967b77c1
--- /dev/null
+++ b/tests/virnetdevmock.c
@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2015 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
+ * .
+ *
+ * Author: Michal Privoznik
+ */
+
+#include
+
+#ifdef __linux__
+# include "internal.h"
+# include
+# include
+# include "virstring.h"
+# include "virnetdev.h"
+
+# define NET_DEV_TEST_DATA_PREFIX abs_srcdir "/virnetdevtestdata/sys/class/net"
+
+int
+virNetDevSysfsFile(char **pf_sysfs_device_link,
+ const char *ifname,
+ const char *file)
+{
+
+ if (virAsprintfQuiet(pf_sysfs_device_link, "%s/%s/%s",
+ NET_DEV_TEST_DATA_PREFIX, ifname, file) < 0) {
+ fprintf(stderr, "Out of memory\n");
+ abort();
+ }
+
+ return 0;
+}
+#else
+/* Nothing to override on non-__linux__ platforms */
+#endif
diff --git a/tests/virnetdevtest.c b/tests/virnetdevtest.c
new file mode 100644
index 0000000000..c31543e736
--- /dev/null
+++ b/tests/virnetdevtest.c
@@ -0,0 +1,94 @@
+/*
+ * Copyright (C) 2015 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
+ * .
+ *
+ * Author: Michal Privoznik
+ */
+
+#include
+
+#include "testutils.h"
+
+#ifdef __linux__
+
+# include "virnetdev.h"
+
+# define VIR_FROM_THIS VIR_FROM_NONE
+
+struct testVirNetDevGetLinkInfoData {
+ const char *ifname; /* ifname to get info on */
+ virInterfaceState state; /* expected state */
+ unsigned int speed; /* expected speed */
+};
+
+static int
+testVirNetDevGetLinkInfo(const void *opaque)
+{
+ int ret = -1;
+ const struct testVirNetDevGetLinkInfoData *data = opaque;
+ virInterfaceLink lnk;
+
+ if (virNetDevGetLinkInfo(data->ifname, &lnk) < 0)
+ goto cleanup;
+
+ if (lnk.state != data->state) {
+ fprintf(stderr,
+ "Fetched link state (%s) doesn't match the expected one (%s)",
+ virInterfaceStateTypeToString(lnk.state),
+ virInterfaceStateTypeToString(data->state));
+ goto cleanup;
+ }
+
+ if (lnk.speed != data->speed) {
+ fprintf(stderr,
+ "Fetched link speed (%u) doesn't match the expected one (%u)",
+ lnk.speed, data->speed);
+ goto cleanup;
+ }
+
+ ret = 0;
+ cleanup:
+ return ret;
+}
+
+static int
+mymain(void)
+{
+ int ret = 0;
+
+# define DO_TEST_LINK(ifname, state, speed) \
+ do { \
+ struct testVirNetDevGetLinkInfoData data = {ifname, state, speed}; \
+ if (virtTestRun("Link info: " # ifname, \
+ testVirNetDevGetLinkInfo, &data) < 0) \
+ ret = -1; \
+ } while (0)
+
+ DO_TEST_LINK("eth0", VIR_INTERFACE_STATE_UP, 1000);
+ DO_TEST_LINK("lo", VIR_INTERFACE_STATE_UNKNOWN, 0);
+ DO_TEST_LINK("eth0-broken", VIR_INTERFACE_STATE_DOWN, 0);
+
+ return ret == 0 ? EXIT_SUCCESS : EXIT_FAILURE;
+}
+
+VIRT_TEST_MAIN_PRELOAD(mymain, abs_builddir "/.libs/virnetdevmock.so")
+#else
+int
+main(void)
+{
+ return EXIT_AM_SKIP;
+}
+#endif
diff --git a/tests/virnetdevtestdata/sys/class/net/eth0-broken/operstate b/tests/virnetdevtestdata/sys/class/net/eth0-broken/operstate
new file mode 100644
index 0000000000..eb0e90439e
--- /dev/null
+++ b/tests/virnetdevtestdata/sys/class/net/eth0-broken/operstate
@@ -0,0 +1 @@
+down
diff --git a/tests/virnetdevtestdata/sys/class/net/eth0-broken/speed b/tests/virnetdevtestdata/sys/class/net/eth0-broken/speed
new file mode 100644
index 0000000000..4f6ff861c9
--- /dev/null
+++ b/tests/virnetdevtestdata/sys/class/net/eth0-broken/speed
@@ -0,0 +1 @@
+4294967295
diff --git a/tests/virnetdevtestdata/sys/class/net/eth0/operstate b/tests/virnetdevtestdata/sys/class/net/eth0/operstate
new file mode 100644
index 0000000000..e31ee94e17
--- /dev/null
+++ b/tests/virnetdevtestdata/sys/class/net/eth0/operstate
@@ -0,0 +1 @@
+up
diff --git a/tests/virnetdevtestdata/sys/class/net/eth0/speed b/tests/virnetdevtestdata/sys/class/net/eth0/speed
new file mode 100644
index 0000000000..83b33d238d
--- /dev/null
+++ b/tests/virnetdevtestdata/sys/class/net/eth0/speed
@@ -0,0 +1 @@
+1000
diff --git a/tests/virnetdevtestdata/sys/class/net/lo/operstate b/tests/virnetdevtestdata/sys/class/net/lo/operstate
new file mode 100644
index 0000000000..3546645658
--- /dev/null
+++ b/tests/virnetdevtestdata/sys/class/net/lo/operstate
@@ -0,0 +1 @@
+unknown
diff --git a/tests/virnetdevtestdata/sys/class/net/lo/speed b/tests/virnetdevtestdata/sys/class/net/lo/speed
new file mode 100644
index 0000000000..573541ac97
--- /dev/null
+++ b/tests/virnetdevtestdata/sys/class/net/lo/speed
@@ -0,0 +1 @@
+0