aboutsummaryrefslogtreecommitdiff
path: root/vendor/github.com/safchain/ethtool/ethtool_msglvl.go
diff options
context:
space:
mode:
authorbaude <bbaude@redhat.com>2019-08-08 06:01:00 -0500
committerbaude <bbaude@redhat.com>2019-09-09 09:32:43 -0500
commitee432cf2792c5dbe81953007f1fd5c87beb3ebd5 (patch)
treedc0646e4b2faeadf9cca58bf80f1e90d98c50165 /vendor/github.com/safchain/ethtool/ethtool_msglvl.go
parent30cbb0091515a7f802f0f3f3ee486be6ff98f645 (diff)
downloadpodman-ee432cf2792c5dbe81953007f1fd5c87beb3ebd5.tar.gz
podman-ee432cf2792c5dbe81953007f1fd5c87beb3ebd5.tar.bz2
podman-ee432cf2792c5dbe81953007f1fd5c87beb3ebd5.zip
podman network create
initial implementation of network create. we only support bridging networks with this first pass. Signed-off-by: baude <bbaude@redhat.com>
Diffstat (limited to 'vendor/github.com/safchain/ethtool/ethtool_msglvl.go')
-rw-r--r--vendor/github.com/safchain/ethtool/ethtool_msglvl.go113
1 files changed, 113 insertions, 0 deletions
diff --git a/vendor/github.com/safchain/ethtool/ethtool_msglvl.go b/vendor/github.com/safchain/ethtool/ethtool_msglvl.go
new file mode 100644
index 000000000..91836f019
--- /dev/null
+++ b/vendor/github.com/safchain/ethtool/ethtool_msglvl.go
@@ -0,0 +1,113 @@
+/*
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ *
+ */
+
+// Package ethtool aims to provide a library giving a simple access to the
+// Linux SIOCETHTOOL ioctl operations. It can be used to retrieve informations
+// from a network device like statistics, driver related informations or
+// even the peer of a VETH interface.
+package ethtool
+
+import (
+ "syscall"
+ "unsafe"
+)
+
+type ethtoolValue struct { /* ethtool.c: struct ethtool_value */
+ cmd uint32
+ data uint32
+}
+
+// MsglvlGet returns the msglvl of the given interface.
+func (e *Ethtool) MsglvlGet(intf string) (uint32, error) {
+ edata := ethtoolValue{
+ cmd: ETHTOOL_GMSGLVL,
+ }
+
+ var name [IFNAMSIZ]byte
+ copy(name[:], []byte(intf))
+
+ ifr := ifreq{
+ ifr_name: name,
+ ifr_data: uintptr(unsafe.Pointer(&edata)),
+ }
+
+ _, _, ep := syscall.Syscall(syscall.SYS_IOCTL, uintptr(e.fd),
+ SIOCETHTOOL, uintptr(unsafe.Pointer(&ifr)))
+ if ep != 0 {
+ return 0, syscall.Errno(ep)
+ }
+
+ return edata.data, nil
+}
+
+// MsglvlSet returns the read-msglvl, post-set-msglvl of the given interface.
+func (e *Ethtool) MsglvlSet(intf string, valset uint32) (uint32, uint32, error) {
+ edata := ethtoolValue{
+ cmd: ETHTOOL_GMSGLVL,
+ }
+
+ var name [IFNAMSIZ]byte
+ copy(name[:], []byte(intf))
+
+ ifr := ifreq{
+ ifr_name: name,
+ ifr_data: uintptr(unsafe.Pointer(&edata)),
+ }
+
+ _, _, ep := syscall.Syscall(syscall.SYS_IOCTL, uintptr(e.fd),
+ SIOCETHTOOL, uintptr(unsafe.Pointer(&ifr)))
+ if ep != 0 {
+ return 0, 0, syscall.Errno(ep)
+ }
+
+ readval := edata.data
+
+ edata.cmd = ETHTOOL_SMSGLVL
+ edata.data = valset
+
+ _, _, ep = syscall.Syscall(syscall.SYS_IOCTL, uintptr(e.fd),
+ SIOCETHTOOL, uintptr(unsafe.Pointer(&ifr)))
+ if ep != 0 {
+ return 0, 0, syscall.Errno(ep)
+ }
+
+ return readval, edata.data, nil
+}
+
+// MsglvlGet returns the msglvl of the given interface.
+func MsglvlGet(intf string) (uint32, error) {
+ e, err := NewEthtool()
+ if err != nil {
+ return 0, err
+ }
+ defer e.Close()
+ return e.MsglvlGet(intf)
+}
+
+// MsglvlSet returns the read-msglvl, post-set-msglvl of the given interface.
+func MsglvlSet(intf string, valset uint32) (uint32, uint32, error) {
+ e, err := NewEthtool()
+ if err != nil {
+ return 0, 0, err
+ }
+ defer e.Close()
+ return e.MsglvlSet(intf, valset)
+}