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Move the linux specific code into protinfo_linux.go

This commit is contained in:
Vishvananda Ishaya 2015-02-06 18:58:24 -08:00
parent 2e9d285a71
commit 889b85d2e6
2 changed files with 86 additions and 56 deletions
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82
protinfo.go
View File

@ -1,12 +1,10 @@
package netlink
import (
"fmt"
"syscall"
"github.com/vishvananda/netlink/nl"
"strings"
)
// Protinfo represents bridge flags from netlink.
type Protinfo struct {
Hairpin bool
Guard bool
@ -16,6 +14,30 @@ type Protinfo struct {
Flood bool
}
// String returns a list of enabled flags
func (prot *Protinfo) String() string {
boolStrings := make([]string, 0)
if prot.Hairpin {
boolStrings = append(boolStrings, "Hairpin")
}
if prot.Guard {
boolStrings = append(boolStrings, "Guard")
}
if prot.FastLeave {
boolStrings = append(boolStrings, "FastLeave")
}
if prot.RootBlock {
boolStrings = append(boolStrings, "RootBlock")
}
if prot.Learning {
boolStrings = append(boolStrings, "Learning")
}
if prot.Flood {
boolStrings = append(boolStrings, "Flood")
}
return strings.Join(boolStrings, " ")
}
func boolToByte(x bool) []byte {
if x {
return []byte{1}
@ -29,55 +51,3 @@ func byteToBool(x byte) bool {
}
return false
}
func LinkGetProtinfo(link Link) (Protinfo, error) {
base := link.Attrs()
ensureIndex(base)
var pi Protinfo
req := nl.NewNetlinkRequest(syscall.RTM_GETLINK, syscall.NLM_F_DUMP)
msg := nl.NewIfInfomsg(syscall.AF_BRIDGE)
req.AddData(msg)
msgs, err := req.Execute(syscall.NETLINK_ROUTE, 0)
if err != nil {
return pi, err
}
for _, m := range msgs {
ans := nl.DeserializeIfInfomsg(m)
if int(ans.Index) != base.Index {
continue
}
attrs, err := nl.ParseRouteAttr(m[ans.Len():])
if err != nil {
return pi, err
}
for _, attr := range attrs {
if attr.Attr.Type != syscall.IFLA_PROTINFO|syscall.NLA_F_NESTED {
continue
}
infos, err := nl.ParseRouteAttr(attr.Value)
if err != nil {
return pi, err
}
var pi Protinfo
for _, info := range infos {
switch info.Attr.Type {
case nl.IFLA_BRPORT_MODE:
pi.Hairpin = byteToBool(info.Value[0])
case nl.IFLA_BRPORT_GUARD:
pi.Guard = byteToBool(info.Value[0])
case nl.IFLA_BRPORT_FAST_LEAVE:
pi.FastLeave = byteToBool(info.Value[0])
case nl.IFLA_BRPORT_PROTECT:
pi.RootBlock = byteToBool(info.Value[0])
case nl.IFLA_BRPORT_LEARNING:
pi.Learning = byteToBool(info.Value[0])
case nl.IFLA_BRPORT_UNICAST_FLOOD:
pi.Flood = byteToBool(info.Value[0])
}
}
return pi, nil
}
}
return pi, fmt.Errorf("Device with index %d not found", base.Index)
}

60
protinfo_linux.go Normal file
View File

@ -0,0 +1,60 @@
package netlink
import (
"fmt"
"syscall"
"github.com/vishvananda/netlink/nl"
)
func LinkGetProtinfo(link Link) (Protinfo, error) {
base := link.Attrs()
ensureIndex(base)
var pi Protinfo
req := nl.NewNetlinkRequest(syscall.RTM_GETLINK, syscall.NLM_F_DUMP)
msg := nl.NewIfInfomsg(syscall.AF_BRIDGE)
req.AddData(msg)
msgs, err := req.Execute(syscall.NETLINK_ROUTE, 0)
if err != nil {
return pi, err
}
for _, m := range msgs {
ans := nl.DeserializeIfInfomsg(m)
if int(ans.Index) != base.Index {
continue
}
attrs, err := nl.ParseRouteAttr(m[ans.Len():])
if err != nil {
return pi, err
}
for _, attr := range attrs {
if attr.Attr.Type != syscall.IFLA_PROTINFO|syscall.NLA_F_NESTED {
continue
}
infos, err := nl.ParseRouteAttr(attr.Value)
if err != nil {
return pi, err
}
var pi Protinfo
for _, info := range infos {
switch info.Attr.Type {
case nl.IFLA_BRPORT_MODE:
pi.Hairpin = byteToBool(info.Value[0])
case nl.IFLA_BRPORT_GUARD:
pi.Guard = byteToBool(info.Value[0])
case nl.IFLA_BRPORT_FAST_LEAVE:
pi.FastLeave = byteToBool(info.Value[0])
case nl.IFLA_BRPORT_PROTECT:
pi.RootBlock = byteToBool(info.Value[0])
case nl.IFLA_BRPORT_LEARNING:
pi.Learning = byteToBool(info.Value[0])
case nl.IFLA_BRPORT_UNICAST_FLOOD:
pi.Flood = byteToBool(info.Value[0])
}
}
return pi, nil
}
}
return pi, fmt.Errorf("Device with index %d not found", base.Index)
}