ir: Check that just bootstrapped SN is available

Closes #2475.

Signed-off-by: Pavel Karpy <carpawell@nspcc.ru>

CHANGELOG.md

@@ -26,6 +26,7 @@ minor release, the component will be purged, so be prepared (see `Updating` sect
 - `neofs-cli object nodes` command to get SNs for an object (#2512)
 - Fetching container estimations via iterators to prevent NeoVM stack overflow (#2173)
 - `neofs-adm morph netmap-candidates` CLI command (#1889)
+- SN network validation (is available by its announced addresses) on bootstrap by the IR (#2475)
 
 ### Fixed
 - `neo-go` RPC connection loss handling (#1337)

pkg/innerring/innerring.go

@@ -23,6 +23,7 @@ import (
 	"github.com/nspcc-dev/neofs-node/pkg/innerring/processors/neofs"
 	"github.com/nspcc-dev/neofs-node/pkg/innerring/processors/netmap"
 	nodevalidator "github.com/nspcc-dev/neofs-node/pkg/innerring/processors/netmap/nodevalidation"
+	availabilityvalidator "github.com/nspcc-dev/neofs-node/pkg/innerring/processors/netmap/nodevalidation/availability"
 	addrvalidator "github.com/nspcc-dev/neofs-node/pkg/innerring/processors/netmap/nodevalidation/maddress"
 	statevalidation "github.com/nspcc-dev/neofs-node/pkg/innerring/processors/netmap/nodevalidation/state"
 	"github.com/nspcc-dev/neofs-node/pkg/innerring/processors/reputation"
@@ -754,6 +755,7 @@ func New(ctx context.Context, log *zap.Logger, cfg *viper.Viper, errChan chan<-
 			&netMapCandidateStateValidator,
 			addrvalidator.New(),
 			locodeValidator,
+			availabilityvalidator.New(),
 		),
 		NodeStateSettings: netSettings,
 	})

pkg/innerring/processors/netmap/nodevalidation/availability/validator.go

@@ -0,0 +1,151 @@
+package availability
+
+import (
+	"bytes"
+	"context"
+	"fmt"
+	"time"
+
+	"github.com/nspcc-dev/neofs-sdk-go/client"
+	"github.com/nspcc-dev/neofs-sdk-go/netmap"
+)
+
+// Validator is a utility that verifies node's
+// accessibility according to its announced addresses.
+//
+// For correct operation, the Validator must be created
+// using the constructor (New). After successful creation,
+// the Validator is immediately ready to work through API.
+type Validator struct{}
+
+func (v Validator) VerifyAndUpdate(nodeInfo *netmap.NodeInfo) error {
+	var results []*client.ResEndpointInfo
+	var err error
+
+	nodeInfo.IterateNetworkEndpoints(func(s string) bool {
+		var res *client.ResEndpointInfo
+		var c *client.Client
+
+		c, err = createSDKClient(s)
+		if err != nil {
+			err = fmt.Errorf("'%s': client creation: %w", s, err)
+			return true
+		}
+		defer func() {
+			_ = c.Close()
+		}()
+
+		timeoutContext, cancel := context.WithTimeout(context.Background(), pingTimeout)
+		defer cancel()
+
+		res, err = c.EndpointInfo(timeoutContext, client.PrmEndpointInfo{})
+		if err != nil {
+			err = fmt.Errorf("'%s': could not ping node with `EndpointInfo`: %w", s, err)
+			return true
+		}
+
+		results = append(results, res)
+		return false
+	})
+	if err != nil {
+		return err
+	}
+
+	for _, res := range results {
+		err = compareNodeInfos(*nodeInfo, res.NodeInfo())
+		if err != nil {
+			return fmt.Errorf("`EndpointInfo` RPC call result differs: %w", err)
+		}
+	}
+
+	return nil
+}
+
+// New creates a new instance of the Validator.
+//
+// Panics if at least one value of the parameters is invalid.
+//
+// The created Validator does not require additional
+// initialization and is completely ready for work.
+func New() *Validator {
+	return &Validator{}
+}
+
+func compareNodeInfos(niExp, niGot netmap.NodeInfo) error {
+	// a node can be in a STATE_1 (and respond with it)
+	// but the request can mean a state transfer to a
+	// STATE_2, so make both node infos in the same state,
+	// e.g. ONLINE
+	niGot.SetOnline()
+	niExp.SetOnline()
+	if exp, got := niExp.Marshal(), niGot.Marshal(); bytes.Equal(exp, got) {
+		return nil
+	}
+
+	var err error
+
+	if exp, got := niExp.Hash(), niGot.Hash(); exp != got {
+		return fmt.Errorf("hash: got %d, expect %d", got, exp)
+	}
+
+	if exp, got := niExp.NumberOfAttributes(), niGot.NumberOfAttributes(); exp != got {
+		return fmt.Errorf("attr number: got %d, expect %d", got, exp)
+	}
+
+	niExp.IterateAttributes(func(key, value string) {
+		vGot := niGot.Attribute(key)
+		if vGot != value {
+			err = fmt.Errorf("non-equal %s attribute: got %s, expect %s", key, vGot, value)
+		}
+	})
+	if err != nil {
+		return err
+	}
+
+	if exp, got := niExp.NumberOfNetworkEndpoints(), niGot.NumberOfNetworkEndpoints(); exp != got {
+		return fmt.Errorf("address number: got %d, expect %d", got, exp)
+	}
+
+	expAddrM := make(map[string]struct{}, niExp.NumberOfAttributes())
+	niExp.IterateNetworkEndpoints(func(s string) bool {
+		expAddrM[s] = struct{}{}
+		return false
+	})
+
+	niGot.IterateNetworkEndpoints(func(s string) bool {
+		if _, ok := expAddrM[s]; !ok {
+			err = fmt.Errorf("got unexpected address: %s", s)
+			return true
+		}
+
+		return false
+	})
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+const pingTimeout = 15 * time.Second
+
+func createSDKClient(e string) (*client.Client, error) {
+	var prmInit client.PrmInit
+	var prmDial client.PrmDial
+
+	prmDial.SetTimeout(pingTimeout)
+	prmDial.SetStreamTimeout(pingTimeout)
+	prmDial.SetServerURI(e)
+
+	c, err := client.New(prmInit)
+	if err != nil {
+		return nil, fmt.Errorf("can't create SDK client: %w", err)
+	}
+
+	err = c.Dial(prmDial)
+	if err != nil {
+		return nil, fmt.Errorf("can't init SDK client: %w", err)
+	}
+
+	return c, nil
+}