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authorMatthew Heon <matthew.heon@gmail.com>2017-11-01 11:24:59 -0400
committerMatthew Heon <matthew.heon@gmail.com>2017-11-01 11:24:59 -0400
commita031b83a09a8628435317a03f199cdc18b78262f (patch)
treebc017a96769ce6de33745b8b0b1304ccf38e9df0 /vendor/github.com/vishvananda/netlink/protinfo_linux.go
parent2b74391cd5281f6fdf391ff8ad50fd1490f6bf89 (diff)
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Initial checkin from CRI-O repo
Signed-off-by: Matthew Heon <matthew.heon@gmail.com>
Diffstat (limited to 'vendor/github.com/vishvananda/netlink/protinfo_linux.go')
-rw-r--r--vendor/github.com/vishvananda/netlink/protinfo_linux.go74
1 files changed, 74 insertions, 0 deletions
diff --git a/vendor/github.com/vishvananda/netlink/protinfo_linux.go b/vendor/github.com/vishvananda/netlink/protinfo_linux.go
new file mode 100644
index 000000000..10dd0d533
--- /dev/null
+++ b/vendor/github.com/vishvananda/netlink/protinfo_linux.go
@@ -0,0 +1,74 @@
+package netlink
+
+import (
+ "fmt"
+ "syscall"
+
+ "github.com/vishvananda/netlink/nl"
+)
+
+func LinkGetProtinfo(link Link) (Protinfo, error) {
+ return pkgHandle.LinkGetProtinfo(link)
+}
+
+func (h *Handle) LinkGetProtinfo(link Link) (Protinfo, error) {
+ base := link.Attrs()
+ h.ensureIndex(base)
+ var pi Protinfo
+ req := h.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
+ }
+ pi = *parseProtinfo(infos)
+
+ return pi, nil
+ }
+ }
+ return pi, fmt.Errorf("Device with index %d not found", base.Index)
+}
+
+func parseProtinfo(infos []syscall.NetlinkRouteAttr) *Protinfo {
+ 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])
+ case nl.IFLA_BRPORT_PROXYARP:
+ pi.ProxyArp = byteToBool(info.Value[0])
+ case nl.IFLA_BRPORT_PROXYARP_WIFI:
+ pi.ProxyArpWiFi = byteToBool(info.Value[0])
+ }
+ }
+ return &pi
+}