Merge pull request #11 from gburek-fastly/gburek/NETLINK_GET_STRICT_CHK

Try to set NETLINK_GET_STRICT_CHK socket option

get.go

@@ -1,9 +1,11 @@
 package qdisc
 
 import (
+	"errors"
 	"fmt"
 	"math"
 	"net"
+	"syscall"
 
 	"github.com/mdlayher/netlink"
 	"github.com/mdlayher/netlink/nlenc"
@@ -293,6 +295,14 @@ func Get() ([]QdiscInfo, error) {
 	if err != nil {
 		return nil, fmt.Errorf("failed to dial netlink: %v", err)
 	}
+
+	if err := c.SetOption(netlink.GetStrictCheck, true); err != nil {
+		// silently accept ENOPROTOOPT errors when kernel is not > 4.20
+		if !errors.Is(err, syscall.ENOPROTOOPT) {
+			return nil, fmt.Errorf("unexpected error trying to set option NETLINK_GET_STRICT_CHK: %v", err)
+		}
+	}
+
 	defer c.Close()
 
 	return getAndParse(c)

go.mod

@@ -1,9 +1,14 @@
 module github.com/ema/qdisc
 
-go 1.12
+go 1.18
+
+require github.com/mdlayher/netlink v1.7.0
 
 require (
-	github.com/jsimonetti/rtnetlink v0.0.0-20190830100107-3784a6c7c552 // indirect
-	github.com/mdlayher/netlink v0.0.0-20190828143259-340058475d09
-	golang.org/x/sys v0.0.0-20190902133755-9109b7679e13 // indirect
+	github.com/google/go-cmp v0.5.9 // indirect
+	github.com/josharian/native v1.0.0 // indirect
+	github.com/mdlayher/socket v0.4.0 // indirect
+	golang.org/x/net v0.2.0 // indirect
+	golang.org/x/sync v0.1.0 // indirect
+	golang.org/x/sys v0.2.0 // indirect
 )

go.sum

@@ -1,20 +1,14 @@
-github.com/google/go-cmp v0.2.0/go.mod h1:oXzfMopK8JAjlY9xF4vHSVASa0yLyX7SntLO5aqRK0M=
-github.com/google/go-cmp v0.3.1 h1:Xye71clBPdm5HgqGwUkwhbynsUJZhDbS20FvLhQ2izg=
-github.com/google/go-cmp v0.3.1/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
-github.com/jsimonetti/rtnetlink v0.0.0-20190606172950-9527aa82566a/go.mod h1:Oz+70psSo5OFh8DBl0Zv2ACw7Esh6pPUphlvZG9x7uw=
-github.com/jsimonetti/rtnetlink v0.0.0-20190830100107-3784a6c7c552 h1:Ve/e6edHdAHn+8/24Xco7IhQCv3u5Dab2qZNvR9e5/U=
-github.com/jsimonetti/rtnetlink v0.0.0-20190830100107-3784a6c7c552/go.mod h1:Oz+70psSo5OFh8DBl0Zv2ACw7Esh6pPUphlvZG9x7uw=
-github.com/mdlayher/netlink v0.0.0-20190409211403-11939a169225/go.mod h1:eQB3mZE4aiYnlUsyGGCOpPETfdQq4Jhsgf1fk3cwQaA=
-github.com/mdlayher/netlink v0.0.0-20190828143259-340058475d09 h1:U2vuol6i4UF6MSpZJclH4HHiLRMoq1NAzxpIpCUJK/Y=
-github.com/mdlayher/netlink v0.0.0-20190828143259-340058475d09/go.mod h1:KxeJAFOFLG6AjpyDkQ/iIhxygIUKD+vcwqcnu43w/+M=
-golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
-golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
-golang.org/x/net v0.0.0-20190827160401-ba9fcec4b297 h1:k7pJ2yAPLPgbskkFdhRCsA77k2fySZ1zf2zCjvQCiIM=
-golang.org/x/net v0.0.0-20190827160401-ba9fcec4b297/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
-golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
-golang.org/x/sys v0.0.0-20190312061237-fead79001313/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20190411185658-b44545bcd369/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20190826190057-c7b8b68b1456/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20190902133755-9109b7679e13 h1:tdsQdquKbTNMsSZLqnLELJGzCANp9oXhu6zFBW6ODx4=
-golang.org/x/sys v0.0.0-20190902133755-9109b7679e13/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
+github.com/google/go-cmp v0.5.9 h1:O2Tfq5qg4qc4AmwVlvv0oLiVAGB7enBSJ2x2DqQFi38=
+github.com/google/go-cmp v0.5.9/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
+github.com/josharian/native v1.0.0 h1:Ts/E8zCSEsG17dUqv7joXJFybuMLjQfWE04tsBODTxk=
+github.com/josharian/native v1.0.0/go.mod h1:7X/raswPFr05uY3HiLlYeyQntB6OO7E/d2Cu7qoaN2w=
+github.com/mdlayher/netlink v1.7.0 h1:ZNGI4V7i1fJ94DPYtWhI/R85i/Q7ZxnuhUJQcJMoodI=
+github.com/mdlayher/netlink v1.7.0/go.mod h1:nKO5CSjE/DJjVhk/TNp6vCE1ktVxEA8VEh8drhZzxsQ=
+github.com/mdlayher/socket v0.4.0 h1:280wsy40IC9M9q1uPGcLBwXpcTQDtoGwVt+BNoITxIw=
+github.com/mdlayher/socket v0.4.0/go.mod h1:xxFqz5GRCUN3UEOm9CZqEJsAbe1C8OwSK46NlmWuVoc=
+golang.org/x/net v0.2.0 h1:sZfSu1wtKLGlWI4ZZayP0ck9Y73K1ynO6gqzTdBVdPU=
+golang.org/x/net v0.2.0/go.mod h1:KqCZLdyyvdV855qA2rE3GC2aiw5xGR5TEjj8smXukLY=
+golang.org/x/sync v0.1.0 h1:wsuoTGHzEhffawBOhz5CYhcrV4IdKZbEyZjBMuTp12o=
+golang.org/x/sync v0.1.0/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sys v0.2.0 h1:ljd4t30dBnAvMZaQCevtY0xLLD0A+bRZXbgLMLU1F/A=
+golang.org/x/sys v0.2.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=