Clean up outdated slirp4netns references in comments

Signed-off-by: Lokesh Mandvekar <lsm5@redhat.com>

cmd/rootlessport/main.go

@@ -229,7 +229,7 @@ outer:
 		unix.Dup2(int(f.Fd()), 2) //nolint:errcheck
 		f.Close()
 	}
-	// write and close ReadyFD (convention is same as slirp4netns --ready-fd)
+	// write and close ReadyFD to signal readiness
 	if _, err := readyW.Write([]byte("1")); err != nil {
 		return err
 	}

contrib/cirrus/logcollector.sh

@@ -47,7 +47,6 @@ case $1 in
                     passt
                     podman
                     skopeo
-                    slirp4netns
         )
         case $OS_RELEASE_ID in
             fedora)

libpod/container_api.go

@@ -944,8 +944,7 @@ func (c *Container) Sync() error {
 // It is mostly intended to be used in cases where the system firewall has been
 // reloaded, and existing rules have been wiped out. It is expected that some
 // downtime will result, as the rules are destroyed as part of this process.
-// At present, this only works on root containers; it may be expanded to restart
-// slirp4netns in the future to work with rootless containers as well.
+// At present, this only works on containers with bridge networking.
 // Requires that the container must be running or created.
 func (c *Container) ReloadNetwork() error {
 	if !c.batched {

libpod/container_internal_common.go

@@ -2227,7 +2227,7 @@ func (c *Container) addResolvConf() error {
 			// add the nameservers from the networks status
 			nameservers = networkNameServers
 		} else {
-			// pasta and slirp4netns have a built in DNS forwarder.
+			// pasta has a built in DNS forwarder.
 			nameservers = c.addSpecialDNS(nameservers)
 		}
 	}

libpod/container_internal_linux.go

@@ -556,7 +556,7 @@ func (c *Container) setCgroupsPath(g *generate.Generator) error {
 	return nil
 }
 
-// addSpecialDNS adds special dns servers for slirp4netns and pasta
+// addSpecialDNS adds special dns servers for pasta
 func (c *Container) addSpecialDNS(nameservers []string) []string {
 	switch {
 	case c.config.NetMode.IsBridge():

libpod/networking_common.go

@@ -131,8 +131,7 @@ func isBridgeNetMode(n namespaces.NetworkMode) error {
 // This is mainly used when a reload of firewall rules wipes out existing
 // firewall configuration.
 // Efforts will be made to preserve MAC and IP addresses.
-// Only works on containers with bridge networking at present, though in the future we could
-// extend this to stop + restart slirp4netns
+// Only works on containers with bridge networking.
 func (r *Runtime) reloadContainerNetwork(ctr *Container) (map[string]types.StatusBlock, error) {
 	if ctr.state.NetNS == "" {
 		return nil, fmt.Errorf("container %s network is not configured, refusing to reload: %w", ctr.ID(), define.ErrCtrStateInvalid)
@@ -256,7 +255,7 @@ func (c *Container) getContainerNetworkInfo() (*define.InspectNetworkSettings, e
 	settings.SandboxKey = c.state.NetNS
 
 	netStatus := c.getNetworkStatus()
-	// If this is empty, we're probably slirp4netns
+	// If this is empty, we're probably using pasta
 	if len(netStatus) == 0 {
 		return settings, nil
 	}

pkg/api/handlers/compat/containers_create.go

@@ -299,7 +299,7 @@ func cliOpts(cc handlers.CreateContainerConfig, rtc *config.Config) (*entities.C
 		}
 	}
 
-	// special case for NetworkMode, the podman default is slirp4netns for
+	// special case for NetworkMode, the podman default is pasta for
 	// rootless but for better docker compat we want bridge. Do this only if
 	// the default config in containers.conf wasn't overridden to use another
 	// value than the default "private" one.