podman: Add pasta to podman info

docs/source/markdown/podman-info.1.md

@@ -87,6 +87,15 @@ host:
       spec: 1.0.0
       +SYSTEMD +SELINUX +APPARMOR +CAP +SECCOMP +EBPF +CRIU +YAJL
   os: linux
+  pasta:
+    executable: /usr/bin/passt
+    package: passt-0^20221116.gace074c-1.fc34.x86_64
+    version: |
+      passt 0^20221116.gace074c-1.fc34.x86_64
+      Copyright Red Hat
+      GNU Affero GPL version 3 or later <https://www.gnu.org/licenses/agpl-3.0.html>
+      This is free software: you are free to change and redistribute it.
+      There is NO WARRANTY, to the extent permitted by law.
   remoteSocket:
     path: /run/user/3267/podman/podman.sock
   security:
@@ -235,6 +244,11 @@ $ podman info --format json
       "package": "slirp4netns-1.1.12-2.fc34.x86_64",
       "version": "slirp4netns version 1.1.12\ncommit: 7a104a101aa3278a2152351a082a6df71f57c9a3\nlibslirp: 4.4.0\nSLIRP_CONFIG_VERSION_MAX: 3\nlibseccomp: 2.5.0"
     },
+    "pasta": {
+      "executable": "/usr/bin/passt",
+      "package": "passt-0^20221116.gace074c-1.fc34.x86_64",
+      "version": "passt 0^20221116.gace074c-1.fc34.x86_64\nCopyright Red Hat\nGNU Affero GPL version 3 or later \u003chttps://www.gnu.org/licenses/agpl-3.0.html\u003e\nThis is free software: you are free to change and redistribute it.\nThere is NO WARRANTY, to the extent permitted by law.\n"
+    },
     "swapFree": 15687475200,
     "swapTotal": 16886259712,
     "uptime": "47h 17m 29.75s (Approximately 1.96 days)",

libpod/define/info.go

@@ -54,10 +54,12 @@ type HostInfo struct {
 	ServiceIsRemote bool         `json:"serviceIsRemote"`
 	Security        SecurityInfo `json:"security"`
 	Slirp4NetNS     SlirpInfo    `json:"slirp4netns,omitempty"`
-	SwapFree        int64        `json:"swapFree"`
-	SwapTotal       int64        `json:"swapTotal"`
-	Uptime          string       `json:"uptime"`
-	Linkmode        string       `json:"linkmode"`
+	Pasta           PastaInfo    `json:"pasta,omitempty"`
+
+	SwapFree  int64  `json:"swapFree"`
+	SwapTotal int64  `json:"swapTotal"`
+	Uptime    string `json:"uptime"`
+	Linkmode  string `json:"linkmode"`
 }
 
 // RemoteSocket describes information about the API socket
@@ -73,6 +75,13 @@ type SlirpInfo struct {
 	Version    string `json:"version"`
 }
 
+// PastaInfo describes the pasta executable that is being used
+type PastaInfo struct {
+	Executable string `json:"executable"`
+	Package    string `json:"package"`
+	Version    string `json:"version"`
+}
+
 // IDMappings describe the GID and UID mappings
 type IDMappings struct {
 	GIDMap []idtools.IDMap `json:"gidmap"`

libpod/info_linux.go

@@ -71,6 +71,20 @@ func (r *Runtime) setPlatformHostInfo(info *define.HostInfo) error {
 		info.Slirp4NetNS = program
 	}
 
+	pastaPath, _ := r.config.FindHelperBinary(pastaBinaryName, true)
+	if pastaPath != "" {
+		version, err := programVersion(pastaPath)
+		if err != nil {
+			logrus.Warnf("Failed to retrieve program version for %s: %v", pastaPath, err)
+		}
+		program := define.PastaInfo{
+			Executable: pastaPath,
+			Package:    packageVersion(pastaPath),
+			Version:    version,
+		}
+		info.Pasta = program
+	}
+
 	if rootless.IsRootless() {
 		uidmappings, err := rootless.ReadMappingsProc("/proc/self/uid_map")
 		if err != nil {

libpod/networking_pasta_linux.go

@@ -15,6 +15,10 @@ import (
 	"github.com/sirupsen/logrus"
 )
 
+const (
+	pastaBinaryName = "passt"
+)
+
 func (r *Runtime) setupPasta(ctr *Container, netns string) error {
 	var NoTCPInitPorts = true
 	var NoUDPInitPorts = true

test/system/005-info.bats

@@ -43,6 +43,7 @@ host.conmon.package       | .*conmon.*
 host.cgroupManager        | \\\(systemd\\\|cgroupfs\\\)
 host.cgroupVersion        | v[12]
 host.ociRuntime.path      | $expr_path
+host.pasta                | .*executable.*package.*
 store.configFile          | $expr_path
 store.graphDriverName     | [a-z0-9]\\\+\\\$
 store.graphRoot           | $expr_path