feat(firewall): add packet statistics tracking for firewall clients

Enhanced the firewall client functionality by introducing packet statistics tracking, including the cumulative count of packets dropped and accepted. Updated the API to support these new fields and modified the database schema accordingly. Improved the firewall scripts to collect and report packet statistics, ensuring better visibility into client performance. Adjusted the UI components to display packet counts in the clients table, enhancing user experience and monitoring capabilities.

internal/store/backend.go

@@ -142,7 +142,7 @@ type Backend interface {
 	DeleteFirewallClient(tenantID, id string) error
 	LookupFirewallClientByTokenHash(hash []byte) (*FirewallClient, error)
 	TouchFirewallClientLastSeen(id, source, clientIP, clientVersion string) error
-	TouchFirewallClientLastApply(id, source, status, errMsg string, prefixCount, ipCount int) error
+	TouchFirewallClientLastApply(id, source, status, errMsg string, prefixCount, ipCount int, packetsDropped, packetsAccepted int64) error
 	ListActiveFirewallClientHashes() ([]FirewallClientAuthRow, error)
 	ListApprovedFirewallClientsForReplication(tenantID string) ([]FirewallClientReplicationRow, error)
 

internal/store/firewall_types.go

@@ -7,26 +7,28 @@ import (
 
 // FirewallClient is a Linux blocklist sync client enrolled via seed.
 type FirewallClient struct {
-	ID                   string     `json:"id"`
-	TenantID             string     `json:"tenant_id,omitempty"`
-	Name                 string     `json:"name"`
-	Hostname             string     `json:"hostname,omitempty"`
-	TokenPrefix          string     `json:"token_prefix"`
-	Status               string     `json:"status"`
-	LastSeenAt           *time.Time `json:"last_seen_at,omitempty"`
-	LastSeenAtSource     string     `json:"last_seen_at_source,omitempty"`
-	LastSeenIP           string     `json:"last_seen_ip,omitempty"`
-	LastApplyAt          *time.Time `json:"last_apply_at,omitempty"`
-	LastApplyStatus      string     `json:"last_apply_status,omitempty"`
-	LastApplyError       string     `json:"last_apply_error,omitempty"`
-	LastApplyPrefixCount int        `json:"last_apply_prefix_count,omitempty"`
-	LastApplyIPCount     int        `json:"last_apply_ip_count,omitempty"`
-	LastApplySource      string     `json:"last_apply_source,omitempty"`
-	ClientVersion        string     `json:"client_version,omitempty"`
-	CreatedAt            time.Time  `json:"created_at"`
-	ApprovedAt           *time.Time `json:"approved_at,omitempty"`
-	ApprovedByAPIKeyID   string     `json:"approved_by_api_key_id,omitempty"`
-	RevokedAt            *time.Time `json:"revoked_at,omitempty"`
+	ID                       string     `json:"id"`
+	TenantID                 string     `json:"tenant_id,omitempty"`
+	Name                     string     `json:"name"`
+	Hostname                 string     `json:"hostname,omitempty"`
+	TokenPrefix              string     `json:"token_prefix"`
+	Status                   string     `json:"status"`
+	LastSeenAt               *time.Time `json:"last_seen_at,omitempty"`
+	LastSeenAtSource         string     `json:"last_seen_at_source,omitempty"`
+	LastSeenIP               string     `json:"last_seen_ip,omitempty"`
+	LastApplyAt              *time.Time `json:"last_apply_at,omitempty"`
+	LastApplyStatus          string     `json:"last_apply_status,omitempty"`
+	LastApplyError           string     `json:"last_apply_error,omitempty"`
+	LastApplyPrefixCount     int        `json:"last_apply_prefix_count,omitempty"`
+	LastApplyIPCount         int        `json:"last_apply_ip_count,omitempty"`
+	LastApplyPacketsDropped  int64      `json:"last_apply_packets_dropped,omitempty"`
+	LastApplyPacketsAccepted int64      `json:"last_apply_packets_accepted,omitempty"`
+	LastApplySource          string     `json:"last_apply_source,omitempty"`
+	ClientVersion            string     `json:"client_version,omitempty"`
+	CreatedAt                time.Time  `json:"created_at"`
+	ApprovedAt               *time.Time `json:"approved_at,omitempty"`
+	ApprovedByAPIKeyID       string     `json:"approved_by_api_key_id,omitempty"`
+	RevokedAt                *time.Time `json:"revoked_at,omitempty"`
 }
 
 // FirewallClientCreate is input for enroll (token hash supplied by caller).

internal/store/memory_firewall.go

@@ -171,7 +171,7 @@ func (m *Memory) TouchFirewallClientLastSeen(id, source, clientIP, clientVersion
 	return nil
 }
 
-func (m *Memory) TouchFirewallClientLastApply(id, source, status, errMsg string, prefixCount, ipCount int) error {
+func (m *Memory) TouchFirewallClientLastApply(id, source, status, errMsg string, prefixCount, ipCount int, packetsDropped, packetsAccepted int64) error {
 	m.mu.Lock()
 	defer m.mu.Unlock()
 	rec, ok := m.firewallClients[id]
@@ -185,6 +185,8 @@ func (m *Memory) TouchFirewallClientLastApply(id, source, status, errMsg string,
 	rec.LastApplyError = strings.TrimSpace(errMsg)
 	rec.LastApplyPrefixCount = prefixCount
 	rec.LastApplyIPCount = ipCount
+	rec.LastApplyPacketsDropped = packetsDropped
+	rec.LastApplyPacketsAccepted = packetsAccepted
 	return nil
 }