build(deps): bump github.com/containernetworking/plugins

Bumps [github.com/containernetworking/plugins](https://github.com/containernetworking/plugins) from 0.8.2 to 0.8.5.
- [Release notes](https://github.com/containernetworking/plugins/releases)
- [Commits](https://github.com/containernetworking/plugins/compare/v0.8.2...v0.8.5)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
Signed-off-by: Matthew Heon <mheon@redhat.com>

4 files changed, 21 insertions, 18 deletions

diff --git a/go.mod b/go.mod
index 54af7fda4..0796904a1 100644
--- a/go.mod
+++ b/go.mod
@@ -9,7 +9,7 @@ require (
 	github.com/checkpoint-restore/go-criu v0.0.0-20190109184317-bdb7599cd87b
 	github.com/codahale/hdrhistogram v0.0.0-20161010025455-3a0bb77429bd // indirect
 	github.com/containernetworking/cni v0.7.2-0.20190904153231-83439463f784
-	github.com/containernetworking/plugins v0.8.2
+	github.com/containernetworking/plugins v0.8.5
 	github.com/containers/buildah v1.13.1
 	github.com/containers/conmon v2.0.9+incompatible
 	github.com/containers/image/v5 v5.1.0
diff --git a/go.sum b/go.sum
index de7791f47..c02741c3c 100644
--- a/go.sum
+++ b/go.sum
@@ -73,6 +73,8 @@ github.com/containernetworking/cni v0.7.2-0.20190904153231-83439463f784 h1:rqUVL
 github.com/containernetworking/cni v0.7.2-0.20190904153231-83439463f784/go.mod h1:LGwApLUm2FpoOfxTDEeq8T9ipbpZ61X79hmU3w8FmsY=
 github.com/containernetworking/plugins v0.8.2 h1:5lnwfsAYO+V7yXhysJKy3E1A2Gy9oVut031zfdOzI9w=
 github.com/containernetworking/plugins v0.8.2/go.mod h1:TxALKWZpWL79BC3GOYKJzzXr7U8R23PdhwaLp6F3adc=
+github.com/containernetworking/plugins v0.8.5 h1:pCvEMrFf7yzJI8+/D/7jkvE96KD52b7/Eu+jpahihy8=
+github.com/containernetworking/plugins v0.8.5/go.mod h1:UZ2539umj8djuRQmBxuazHeJbYrLV8BSBejkk+she6o=
 github.com/containers/buildah v1.12.0 h1:bi/8ACl8qobazwfYgNze5y+aRuBIG+R7lMStFbnDOxE=
 github.com/containers/buildah v1.12.0/go.mod h1:yzPuQ/mJTPsfSLCyBPbeaoXgBLanjnf36M2cDzyckMg=
 github.com/containers/buildah v1.13.1 h1:EdhllQxXmOZ56mGFf68AkrpIj9XtEkkGq0WaPWFuGM0=
@@ -107,6 +109,8 @@ github.com/coreos/etcd v3.3.10+incompatible/go.mod h1:uF7uidLiAD3TWHmW31ZFd/JWoc
 github.com/coreos/go-etcd v2.0.0+incompatible/go.mod h1:Jez6KQU2B/sWsbdaef3ED8NzMklzPG4d5KIOhIy30Tk=
 github.com/coreos/go-iptables v0.4.2 h1:KH0EwId05JwWIfb96gWvkiT2cbuOu8ygqUaB+yPAwIg=
 github.com/coreos/go-iptables v0.4.2/go.mod h1:/mVI274lEDI2ns62jHCDnCyBF9Iwsmekav8Dbxlm1MU=
+github.com/coreos/go-iptables v0.4.5 h1:DpHb9vJrZQEFMcVLFKAAGMUVX0XoRC0ptCthinRYm38=
+github.com/coreos/go-iptables v0.4.5/go.mod h1:/mVI274lEDI2ns62jHCDnCyBF9Iwsmekav8Dbxlm1MU=
 github.com/coreos/go-semver v0.2.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3EedlOD2RNk=
 github.com/coreos/go-systemd v0.0.0-20180511133405-39ca1b05acc7 h1:u9SHYsPQNyt5tgDm3YN7+9dYrpK96E5wFilTFWIDZOM=
 github.com/coreos/go-systemd v0.0.0-20180511133405-39ca1b05acc7/go.mod h1:F5haX7vjVVG0kc13fIWeqUViNPyEJxv/OmvnBo0Yme4=
diff --git a/vendor/github.com/coreos/go-iptables/iptables/iptables.go b/vendor/github.com/coreos/go-iptables/iptables/iptables.go
index 2ed875bb5..1074275b0 100644
--- a/vendor/github.com/coreos/go-iptables/iptables/iptables.go
+++ b/vendor/github.com/coreos/go-iptables/iptables/iptables.go
@@ -48,9 +48,13 @@ func (e *Error) Error() string {
 
 // IsNotExist returns true if the error is due to the chain or rule not existing
 func (e *Error) IsNotExist() bool {
-	return e.ExitStatus() == 1 &&
-		(e.msg == fmt.Sprintf("%s: Bad rule (does a matching rule exist in that chain?).\n", getIptablesCommand(e.proto)) ||
-			e.msg == fmt.Sprintf("%s: No chain/target/match by that name.\n", getIptablesCommand(e.proto)))
+	if e.ExitStatus() != 1 {
+		return false
+	}
+	cmdIptables := getIptablesCommand(e.proto)
+	msgNoRuleExist := fmt.Sprintf("%s: Bad rule (does a matching rule exist in that chain?).\n", cmdIptables)
+	msgNoChainExist := fmt.Sprintf("%s: No chain/target/match by that name.\n", cmdIptables)
+	return strings.Contains(e.msg, msgNoRuleExist) || strings.Contains(e.msg, msgNoChainExist)
 }
 
 // Protocol to differentiate between IPv4 and IPv6
@@ -101,7 +105,13 @@ func NewWithProtocol(proto Protocol) (*IPTables, error) {
 		return nil, err
 	}
 	vstring, err := getIptablesVersionString(path)
+	if err != nil {
+		return nil, fmt.Errorf("could not get iptables version: %v", err)
+	}
 	v1, v2, v3, mode, err := extractIptablesVersion(vstring)
+	if err != nil {
+		return nil, fmt.Errorf("failed to extract iptables version from [%s]: %v", vstring, err)
+	}
 
 	checkPresent, waitPresent, randomFullyPresent := getIptablesCommandSupport(v1, v2, v3)
 
@@ -348,18 +358,6 @@ func (ipt *IPTables) executeList(args []string) ([]string, error) {
 		rules = rules[:len(rules)-1]
 	}
 
-	// nftables mode doesn't return an error code when listing a non-existent
-	// chain. Patch that up.
-	if len(rules) == 0 && ipt.mode == "nf_tables" {
-		v := 1
-		return nil, &Error{
-			cmd:        exec.Cmd{Args: args},
-			msg:        fmt.Sprintf("%s: No chain/target/match by that name.\n", getIptablesCommand(ipt.proto)),
-			proto:      ipt.proto,
-			exitStatus: &v,
-		}
-	}
-
 	for i, rule := range rules {
 		rules[i] = filterRuleOutput(rule)
 	}
@@ -437,6 +435,7 @@ func (ipt *IPTables) runWithOutput(args []string, stdout io.Writer) error {
 		}
 		ul, err := fmu.tryLock()
 		if err != nil {
+			syscall.Close(fmu.fd)
 			return err
 		}
 		defer ul.Unlock()
diff --git a/vendor/modules.txt b/vendor/modules.txt
index 8fa756fbb..e7078e1d3 100644
--- a/vendor/modules.txt
+++ b/vendor/modules.txt
@@ -54,7 +54,7 @@ github.com/containernetworking/cni/pkg/types/020
 github.com/containernetworking/cni/pkg/types/current
 github.com/containernetworking/cni/pkg/utils
 github.com/containernetworking/cni/pkg/version
-# github.com/containernetworking/plugins v0.8.2
+# github.com/containernetworking/plugins v0.8.5
 github.com/containernetworking/plugins/pkg/ip
 github.com/containernetworking/plugins/pkg/ns
 github.com/containernetworking/plugins/pkg/utils/hwaddr
@@ -178,7 +178,7 @@ github.com/containers/storage/pkg/stringutils
 github.com/containers/storage/pkg/system
 github.com/containers/storage/pkg/tarlog
 github.com/containers/storage/pkg/truncindex
-# github.com/coreos/go-iptables v0.4.2
+# github.com/coreos/go-iptables v0.4.5
 github.com/coreos/go-iptables/iptables
 # github.com/coreos/go-systemd v0.0.0-20190719114852-fd7a80b32e1f
 github.com/coreos/go-systemd/activation