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-rw-r--r--cmd/podman/system/connection/add.go61
-rw-r--r--pkg/bindings/connection.go49
-rw-r--r--pkg/domain/infra/runtime_tunnel.go24
-rw-r--r--pkg/terminal/util.go9
4 files changed, 114 insertions, 29 deletions
diff --git a/cmd/podman/system/connection/add.go b/cmd/podman/system/connection/add.go
index 57e747451..da5f652c8 100644
--- a/cmd/podman/system/connection/add.go
+++ b/cmd/podman/system/connection/add.go
@@ -168,19 +168,17 @@ func getUserInfo(uri *url.URL) (*url.Userinfo, error) {
}
func getUDS(cmd *cobra.Command, uri *url.URL) (string, error) {
- var authMethods []ssh.AuthMethod
- passwd, set := uri.User.Password()
- if set {
- authMethods = append(authMethods, ssh.Password(passwd))
- }
+ var signers []ssh.Signer
+ passwd, passwdSet := uri.User.Password()
if cmd.Flags().Changed("identity") {
value := cmd.Flag("identity").Value.String()
- auth, err := terminal.PublicKey(value, []byte(passwd))
+ s, err := terminal.PublicKey(value, []byte(passwd))
if err != nil {
return "", errors.Wrapf(err, "failed to read identity %q", value)
}
- authMethods = append(authMethods, auth)
+ signers = append(signers, s)
+ logrus.Debugf("SSH Ident Key %q %s %s", value, ssh.FingerprintSHA256(s.PublicKey()), s.PublicKey().Type())
}
if sock, found := os.LookupEnv("SSH_AUTH_SOCK"); found {
@@ -190,16 +188,51 @@ func getUDS(cmd *cobra.Command, uri *url.URL) (string, error) {
if err != nil {
return "", err
}
- a := agent.NewClient(c)
- authMethods = append(authMethods, ssh.PublicKeysCallback(a.Signers))
- }
-
- if len(authMethods) == 0 {
- pass, err := terminal.ReadPassword(fmt.Sprintf("%s's login password:", uri.User.Username()))
+ agentSigners, err := agent.NewClient(c).Signers()
if err != nil {
return "", err
}
- authMethods = append(authMethods, ssh.Password(string(pass)))
+
+ signers = append(signers, agentSigners...)
+
+ if logrus.IsLevelEnabled(logrus.DebugLevel) {
+ for _, s := range agentSigners {
+ logrus.Debugf("SSH Agent Key %s %s", ssh.FingerprintSHA256(s.PublicKey()), s.PublicKey().Type())
+ }
+ }
+ }
+
+ var authMethods []ssh.AuthMethod
+ if len(signers) > 0 {
+ var dedup = make(map[string]ssh.Signer)
+ // Dedup signers based on fingerprint, ssh-agent keys override CONTAINER_SSHKEY
+ for _, s := range signers {
+ fp := ssh.FingerprintSHA256(s.PublicKey())
+ if _, found := dedup[fp]; found {
+ logrus.Debugf("Dedup SSH Key %s %s", ssh.FingerprintSHA256(s.PublicKey()), s.PublicKey().Type())
+ }
+ dedup[fp] = s
+ }
+
+ var uniq []ssh.Signer
+ for _, s := range dedup {
+ uniq = append(uniq, s)
+ }
+
+ authMethods = append(authMethods, ssh.PublicKeysCallback(func() ([]ssh.Signer, error) {
+ return uniq, nil
+ }))
+ }
+
+ if passwdSet {
+ authMethods = append(authMethods, ssh.Password(passwd))
+ }
+
+ if len(authMethods) == 0 {
+ authMethods = append(authMethods, ssh.PasswordCallback(func() (string, error) {
+ pass, err := terminal.ReadPassword(fmt.Sprintf("%s's login password:", uri.User.Username()))
+ return string(pass), err
+ }))
}
cfg := &ssh.ClientConfig{
diff --git a/pkg/bindings/connection.go b/pkg/bindings/connection.go
index f2cb3147c..7b26037eb 100644
--- a/pkg/bindings/connection.go
+++ b/pkg/bindings/connection.go
@@ -182,30 +182,65 @@ func pingNewConnection(ctx context.Context) error {
func sshClient(_url *url.URL, secure bool, passPhrase string, identity string) (Connection, error) {
// if you modify the authmethods or their conditionals, you will also need to make similar
// changes in the client (currently cmd/podman/system/connection/add getUDS).
- authMethods := []ssh.AuthMethod{}
+
+ var signers []ssh.Signer // order Signers are appended to this list determines which key is presented to server
+
if len(identity) > 0 {
- auth, err := terminal.PublicKey(identity, []byte(passPhrase))
+ s, err := terminal.PublicKey(identity, []byte(passPhrase))
if err != nil {
return Connection{}, errors.Wrapf(err, "failed to parse identity %q", identity)
}
- logrus.Debugf("public key signer enabled for identity %q", identity)
- authMethods = append(authMethods, auth)
+
+ signers = append(signers, s)
+ logrus.Debugf("SSH Ident Key %q %s %s", identity, ssh.FingerprintSHA256(s.PublicKey()), s.PublicKey().Type())
}
if sock, found := os.LookupEnv("SSH_AUTH_SOCK"); found {
- logrus.Debugf("Found SSH_AUTH_SOCK %q, ssh-agent signer enabled", sock)
+ logrus.Debugf("Found SSH_AUTH_SOCK %q, ssh-agent signer(s) enabled", sock)
c, err := net.Dial("unix", sock)
if err != nil {
return Connection{}, err
}
- a := agent.NewClient(c)
- authMethods = append(authMethods, ssh.PublicKeysCallback(a.Signers))
+
+ agentSigners, err := agent.NewClient(c).Signers()
+ if err != nil {
+ return Connection{}, err
+ }
+ signers = append(signers, agentSigners...)
+
+ if logrus.IsLevelEnabled(logrus.DebugLevel) {
+ for _, s := range agentSigners {
+ logrus.Debugf("SSH Agent Key %s %s", ssh.FingerprintSHA256(s.PublicKey()), s.PublicKey().Type())
+ }
+ }
+ }
+
+ var authMethods []ssh.AuthMethod
+ if len(signers) > 0 {
+ var dedup = make(map[string]ssh.Signer)
+ // Dedup signers based on fingerprint, ssh-agent keys override CONTAINER_SSHKEY
+ for _, s := range signers {
+ fp := ssh.FingerprintSHA256(s.PublicKey())
+ if _, found := dedup[fp]; found {
+ logrus.Debugf("Dedup SSH Key %s %s", ssh.FingerprintSHA256(s.PublicKey()), s.PublicKey().Type())
+ }
+ dedup[fp] = s
+ }
+
+ var uniq []ssh.Signer
+ for _, s := range dedup {
+ uniq = append(uniq, s)
+ }
+ authMethods = append(authMethods, ssh.PublicKeysCallback(func() ([]ssh.Signer, error) {
+ return uniq, nil
+ }))
}
if pw, found := _url.User.Password(); found {
authMethods = append(authMethods, ssh.Password(pw))
}
+
if len(authMethods) == 0 {
callback := func() (string, error) {
pass, err := terminal.ReadPassword("Login password:")
diff --git a/pkg/domain/infra/runtime_tunnel.go b/pkg/domain/infra/runtime_tunnel.go
index 6c85e837e..3fddf577c 100644
--- a/pkg/domain/infra/runtime_tunnel.go
+++ b/pkg/domain/infra/runtime_tunnel.go
@@ -5,18 +5,38 @@ package infra
import (
"context"
"fmt"
+ "sync"
"github.com/containers/podman/v2/pkg/bindings"
"github.com/containers/podman/v2/pkg/domain/entities"
"github.com/containers/podman/v2/pkg/domain/infra/tunnel"
)
+var (
+ connectionMutex = &sync.Mutex{}
+ connection *context.Context
+)
+
+func newConnection(uri string, identity string) (context.Context, error) {
+ connectionMutex.Lock()
+ defer connectionMutex.Unlock()
+
+ if connection == nil {
+ ctx, err := bindings.NewConnectionWithIdentity(context.Background(), uri, identity)
+ if err != nil {
+ return ctx, err
+ }
+ connection = &ctx
+ }
+ return *connection, nil
+}
+
func NewContainerEngine(facts *entities.PodmanConfig) (entities.ContainerEngine, error) {
switch facts.EngineMode {
case entities.ABIMode:
return nil, fmt.Errorf("direct runtime not supported")
case entities.TunnelMode:
- ctx, err := bindings.NewConnectionWithIdentity(context.Background(), facts.URI, facts.Identity)
+ ctx, err := newConnection(facts.URI, facts.Identity)
return &tunnel.ContainerEngine{ClientCxt: ctx}, err
}
return nil, fmt.Errorf("runtime mode '%v' is not supported", facts.EngineMode)
@@ -28,7 +48,7 @@ func NewImageEngine(facts *entities.PodmanConfig) (entities.ImageEngine, error)
case entities.ABIMode:
return nil, fmt.Errorf("direct image runtime not supported")
case entities.TunnelMode:
- ctx, err := bindings.NewConnectionWithIdentity(context.Background(), facts.URI, facts.Identity)
+ ctx, err := newConnection(facts.URI, facts.Identity)
return &tunnel.ImageEngine{ClientCxt: ctx}, err
}
return nil, fmt.Errorf("runtime mode '%v' is not supported", facts.EngineMode)
diff --git a/pkg/terminal/util.go b/pkg/terminal/util.go
index 169bec2af..231b47974 100644
--- a/pkg/terminal/util.go
+++ b/pkg/terminal/util.go
@@ -61,7 +61,7 @@ func ReadPassword(prompt string) (pw []byte, err error) {
}
}
-func PublicKey(path string, passphrase []byte) (ssh.AuthMethod, error) {
+func PublicKey(path string, passphrase []byte) (ssh.Signer, error) {
key, err := ioutil.ReadFile(path)
if err != nil {
return nil, err
@@ -75,12 +75,9 @@ func PublicKey(path string, passphrase []byte) (ssh.AuthMethod, error) {
if len(passphrase) == 0 {
passphrase = ReadPassphrase()
}
- signer, err = ssh.ParsePrivateKeyWithPassphrase(key, passphrase)
- if err != nil {
- return nil, err
- }
+ return ssh.ParsePrivateKeyWithPassphrase(key, passphrase)
}
- return ssh.PublicKeys(signer), nil
+ return signer, nil
}
func ReadPassphrase() []byte {
generated by cgit v1.2.3-54-g00ecf (git 2.39.0) at 2024-11-05 21:54:14 +0000