Files
1Panel/agent/app/service/firewall_setting.go

485 lines
16 KiB
Go

package service
import (
"context"
"encoding/json"
"errors"
"fmt"
"slices"
"strings"
"sync"
"github.com/1Panel-dev/1Panel/agent/app/dto"
"github.com/1Panel-dev/1Panel/agent/app/model"
"github.com/1Panel-dev/1Panel/agent/buserr"
"github.com/1Panel-dev/1Panel/agent/constant"
"github.com/1Panel-dev/1Panel/agent/global"
"github.com/1Panel-dev/1Panel/agent/utils/cmd"
"github.com/1Panel-dev/1Panel/agent/utils/firewall"
dockerfirewall "github.com/1Panel-dev/1Panel/agent/utils/firewall/docker_guard"
"github.com/1Panel-dev/1Panel/agent/utils/firewall/filter"
"github.com/1Panel-dev/1Panel/agent/utils/firewall/lifecycle"
"gorm.io/gorm"
)
type IFirewallSettingService interface {
CreatePortWhitelist(context.Context, dto.FirewallPortWhitelistCreate) error
UpdatePortWhitelist(context.Context, dto.FirewallPortWhitelistUpdate) error
DeletePortWhitelist(context.Context, dto.FirewallPortWhitelistDelete) error
Load(context.Context) (dto.FirewallSettings, error)
Operate(context.Context, dto.FirewallBackendOperation) error
}
type FirewallSettingService struct{}
var firewallWhitelistMu sync.Mutex
func (s *FirewallSettingService) CreatePortWhitelist(ctx context.Context, request dto.FirewallPortWhitelistCreate) error {
firewallWhitelistMu.Lock()
defer firewallWhitelistMu.Unlock()
firewallRuleMutationMu.Lock()
defer firewallRuleMutationMu.Unlock()
return global.DB.WithContext(ctx).Transaction(func(tx *gorm.DB) error {
current, err := loadPortWhitelistSetting(tx)
if err != nil {
return err
}
current = append(current, request.Rule)
current, err = firewall.ValidatePortWhitelist(current)
if err != nil {
return err
}
value, err := json.Marshal(current)
if err != nil {
return err
}
err = tx.Where("key = ?", constant.FirewallPortWhiteList).Assign(map[string]interface{}{"value": string(value)}).FirstOrCreate(&model.Setting{Key: constant.FirewallPortWhiteList}).Error
if err != nil {
return err
}
return nil
})
}
func (s *FirewallSettingService) UpdatePortWhitelist(ctx context.Context, request dto.FirewallPortWhitelistUpdate) error {
firewallWhitelistMu.Lock()
defer firewallWhitelistMu.Unlock()
firewallRuleMutationMu.Lock()
defer firewallRuleMutationMu.Unlock()
return global.DB.WithContext(ctx).Transaction(func(tx *gorm.DB) error {
current, err := loadPortWhitelistSetting(tx)
if err != nil {
return err
}
index, err := findPortWhitelistRule(current, request.OldRule)
if err != nil {
return err
}
current[index] = request.Rule
current, err = firewall.ValidatePortWhitelist(current)
if err != nil {
return err
}
value, err := json.Marshal(current)
if err != nil {
return err
}
err = tx.Where("key = ?", constant.FirewallPortWhiteList).Assign(map[string]interface{}{"value": string(value)}).FirstOrCreate(&model.Setting{Key: constant.FirewallPortWhiteList}).Error
if err != nil {
return err
}
return nil
})
}
func (s *FirewallSettingService) DeletePortWhitelist(ctx context.Context, request dto.FirewallPortWhitelistDelete) error {
if request.Rule == nil {
return fmt.Errorf("select one firewall port whitelist rule to delete")
}
firewallWhitelistMu.Lock()
defer firewallWhitelistMu.Unlock()
firewallRuleMutationMu.Lock()
defer firewallRuleMutationMu.Unlock()
return global.DB.WithContext(ctx).Transaction(func(tx *gorm.DB) error {
current, err := loadPortWhitelistSetting(tx)
if err != nil {
return err
}
index, err := findPortWhitelistRule(current, *request.Rule)
if err != nil {
return err
}
current = slices.Delete(current, index, index+1)
current, err = firewall.ValidatePortWhitelist(current)
if err != nil {
return err
}
value, err := json.Marshal(current)
if err != nil {
return err
}
err = tx.Where("key = ?", constant.FirewallPortWhiteList).Assign(map[string]interface{}{"value": string(value)}).FirstOrCreate(&model.Setting{Key: constant.FirewallPortWhiteList}).Error
if err != nil {
return err
}
return nil
})
}
func (s *FirewallSettingService) Load(ctx context.Context) (dto.FirewallSettings, error) {
result := dto.FirewallSettings{PingStatus: firewall.LoadPingStatus()}
installed := make(map[string]bool)
for _, name := range lifecycle.InstalledProviders() {
installed[name] = true
}
systemBackend, _ := settingRepo.GetValueByKey(constant.FirewallSystemBackendKey)
result.System.Selected = strings.TrimSpace(systemBackend)
if result.System.Selected == "" {
if client, err := lifecycle.NewClient(""); err == nil {
result.System.Selected = client.Name()
}
}
result.System.Current = result.System.Selected
for _, name := range []string{
constant.FirewallProviderFirewalld,
constant.FirewallProviderUFW,
constant.FirewallProviderIptables,
constant.FirewallProviderNftables,
} {
option := dto.FirewallBackendOption{Name: name, Installed: installed[name], Supported: true}
if option.Installed && name == result.System.Selected {
client, err := lifecycle.NewClient(name)
if err != nil {
option.Message = err.Error()
} else if name == constant.FirewallProviderIptables || name == constant.FirewallProviderNftables {
overview, err := loadSystemFirewallOverview(name, "base")
if err != nil {
option.Message = err.Error()
}
option.Initialized, option.Bound = overview.IsInit, overview.IsBind
option.IPv4, option.IPv6 = overview.IPv4, overview.IPv6
} else if option.Active, err = client.Status(); err != nil {
option.Message = err.Error()
}
}
if name == result.System.Selected && name == constant.FirewallProviderIptables {
if commands, err := lifecycle.ResolveIptablesCommands(); err == nil {
option.Implementation = commands.IPv4
}
}
result.System.Options = append(result.System.Options, option)
}
forwardingBackend, _ := settingRepo.GetValueByKey(constant.FirewallForwardingBackendKey)
result.Forwarding.Selected = strings.TrimSpace(forwardingBackend)
if result.Forwarding.Selected == "" {
result.Forwarding.Selected = constant.FirewallProviderIptables
}
result.Forwarding.Current = result.Forwarding.Selected
for _, name := range []string{constant.FirewallProviderIptables, constant.FirewallProviderNftables} {
option := dto.FirewallBackendOption{Name: name, Installed: installed[name], Supported: true}
if option.Installed && name == result.Forwarding.Selected {
manager, err := newForwardingAdapterFor(name)
if err != nil {
option.Message = err.Error()
} else {
status, statusErr := loadForwardingFirewallOverview(manager)
option.IPv4, option.IPv6 = status.IPv4, status.IPv6
if statusErr != nil {
option.Message = statusErr.Error()
} else {
option.Initialized, option.Bound = status.IsInit, status.IsBind
}
if name == constant.FirewallProviderIptables && !option.IPv6.Available {
if commands, err := lifecycle.ResolveIptablesCommands(); err == nil && !commands.IPv6Available() {
option.IPv6.Reason = dockerfirewall.ReasonCommandMissing
}
}
}
}
if name == result.Forwarding.Selected && name == constant.FirewallProviderIptables {
if commands, err := lifecycle.ResolveIptablesCommands(); err == nil {
option.Implementation = commands.IPv4
}
}
result.Forwarding.Options = append(result.Forwarding.Options, option)
}
dockerInstalled := cmd.Which("docker")
dockerVersion := ""
if dockerInstalled {
dockerVersion = loadDockerEngineVersion(ctx)
}
dockerBackend, _ := settingRepo.GetValueByKey(constant.FirewallDockerBackendKey)
dockerBackend = strings.ToLower(strings.TrimSpace(dockerBackend))
if dockerBackend == constant.FirewallProviderIptables || dockerBackend == constant.FirewallProviderNftables {
result.Docker.Selected = dockerBackend
}
result.Docker.Current = result.Docker.Selected
for _, name := range []string{constant.FirewallProviderIptables, constant.FirewallProviderNftables} {
option := dto.FirewallBackendOption{
Name: name, Installed: installed[name], Supported: dockerInstalled,
Active: dockerInstalled && installed[name] && result.Docker.Selected == name,
}
if name == constant.FirewallProviderNftables && dockerInstalled && !dockerNftablesSupported(dockerVersion) {
option.Supported = false
option.SupportReason = "docker_version_unsupported"
option.Active = false
}
if option.Active {
guard := newDockerFirewallRuntime(name)
ipv4, ipv6 := guard.Status(dockerfirewall.FamilyIPv4), guard.Status(dockerfirewall.FamilyIPv6)
option.Initialized = ipv4.Initialized || ipv6.Initialized
option.Bound = ipv4.Bound || ipv6.Bound
option.IPv4.Initialized, option.IPv4.Bound = ipv4.Initialized, ipv4.Bound
option.IPv6.Initialized, option.IPv6.Bound = ipv6.Initialized, ipv6.Bound
option.IPv4.Available = ipv4.Reason != dockerfirewall.ReasonCommandMissing
option.IPv6.Available = ipv6.Reason != dockerfirewall.ReasonCommandMissing
option.IPv4.Reason, option.IPv6.Reason = ipv4.Reason, ipv6.Reason
}
result.Docker.Options = append(result.Docker.Options, option)
}
var err error
result.PortWhitelist, err = loadPortWhitelistSetting(global.DB.WithContext(ctx))
if err != nil {
return result, err
}
result.PanelPort = LoadPanelPort()
sshPort, sshErr := loadSSHWhitelistPortFrom(sshPath)
if sshErr != nil {
global.LOG.Warnf("load SSH port for firewall settings: %v", sshErr)
} else {
result.SSHPort = sshPort
}
return result, err
}
func (s *FirewallSettingService) Operate(ctx context.Context, request dto.FirewallBackendOperation) error {
if err := lockFirewallLifecycleIdle(); err != nil {
return err
}
defer firewallLifecycleTaskMu.Unlock()
if request.Subsystem != "system" && request.Backend != constant.FirewallProviderIptables && request.Backend != constant.FirewallProviderNftables {
return fmt.Errorf("%s only supports iptables or nftables", request.Subsystem)
}
if request.Subsystem == "system" && (request.Backend != constant.FirewallProviderIptables && request.Backend != constant.FirewallProviderNftables) && request.Operation != "select" {
return fmt.Errorf("%s does not support initialization or cleanup", request.Backend)
}
switch request.Subsystem {
case "system":
if err := s.operateSystem(request); err != nil {
return err
}
if request.Operation == "initialize" {
service := newFirewallService()
rulesErr := service.restoreStoredFirewallRules(ctx, filter.Provider(request.Backend), nil)
whitelistErr := service.SyncPortWhitelist(ctx)
return errors.Join(rulesErr, whitelistErr)
}
return nil
case "forwarding":
return s.operateForwarding(request)
case "docker":
return s.operateDocker(ctx, request)
default:
return fmt.Errorf("unsupported firewall subsystem %q", request.Subsystem)
}
}
func NewIFirewallSettingService() IFirewallSettingService {
return &FirewallSettingService{}
}
func (s *FirewallSettingService) operateSystem(request dto.FirewallBackendOperation) error {
firewallRuleMutationMu.Lock()
defer firewallRuleMutationMu.Unlock()
if _, err := lifecycle.NewClient(request.Backend); err != nil {
return err
}
if request.Operation == "cleanup" {
return cleanupSystemBackend(request.Backend)
}
previous, _ := settingRepo.GetValueByKey(constant.FirewallSystemBackendKey)
if previous == "" {
if client, err := lifecycle.NewClient(""); err == nil {
previous = client.Name()
}
}
if request.Operation == "select" && previous != "" && previous != request.Backend {
initialized, err := systemFirewallBackendInitialized(previous)
if err != nil {
return err
}
if initialized {
return buserr.WithMap("ErrFirewallBackendCleanupRequired", map[string]interface{}{"current": previous, "target": request.Backend}, nil)
}
}
if err := settingRepo.UpdateOrCreate(constant.FirewallSystemBackendKey, request.Backend); err != nil {
return err
}
rollback := func(err error) error {
if err == nil {
return nil
}
_ = settingRepo.UpdateOrCreate(constant.FirewallSystemBackendKey, previous)
return err
}
if request.Operation == "select" {
return nil
}
initErr := newFirewallService().operateFilterChainBaseLocked(request.Backend, dto.FilterChainOperation{
Name: constant.FirewallBasicChain, Operate: string(firewall.BaseOperationInit),
})
if initErr != nil {
return rollback(initErr)
}
return settingRepo.UpdateOrCreate(constant.FirewallFilterInitializedKey, constant.StatusEnable)
}
func systemFirewallBackendInitialized(backend string) (bool, error) {
client, err := lifecycle.NewClient(backend)
if err != nil {
if errors.Is(err, lifecycle.ErrNotInstalled) {
return false, nil
}
return false, err
}
if backend == constant.FirewallProviderIptables || backend == constant.FirewallProviderNftables {
for _, family := range []string{constant.FirewallFamilyIPv4, constant.FirewallFamilyIPv6} {
initialized, _, err := loadSystemFirewallFamilyStatus(backend, family)
if family == constant.FirewallFamilyIPv6 && errors.Is(err, filter.ErrFamilyUnavailable) {
continue
}
if err != nil {
return false, err
}
if initialized {
return true, nil
}
}
return false, nil
}
return client.Status()
}
func (s *FirewallSettingService) operateForwarding(request dto.FirewallBackendOperation) error {
manager, err := newForwardingAdapterFor(request.Backend)
if err != nil {
return err
}
if request.Operation == "cleanup" {
if err := manager.Cleanup(); err != nil {
return err
}
if err := settingRepo.UpdateOrCreate(constant.FirewallForwardingInitializedKey, constant.StatusDisable); err != nil {
return err
}
recordForwardingSyncError(nil)
return nil
}
previous, _ := settingRepo.GetValueByKey(constant.FirewallForwardingBackendKey)
if request.Operation == "select" {
current := previous
if current == "" {
detected, err := newForwardingAdapter()
if err != nil {
return err
}
current = detected.Name()
}
initialized, err := forwardingBackendInitialized(current)
if err != nil {
return err
}
if current != request.Backend && initialized {
return buserr.WithMap("ErrFirewallBackendCleanupRequired", map[string]interface{}{"current": current, "target": request.Backend}, nil)
}
}
if err := settingRepo.UpdateOrCreate(constant.FirewallForwardingBackendKey, request.Backend); err != nil {
return err
}
if request.Operation == "initialize" {
return newForwardingService().Enable()
}
recordForwardingSyncError(nil)
return nil
}
func forwardingBackendInitialized(backend string) (bool, error) {
manager, err := newForwardingAdapterFor(backend)
if err != nil {
if errors.Is(err, lifecycle.ErrNotInstalled) {
return false, nil
}
return false, err
}
for _, family := range []string{constant.FirewallFamilyIPv4, constant.FirewallFamilyIPv6} {
initialized, _, err := manager.FamilyStatus(family)
if err != nil {
return false, err
}
if initialized {
return true, nil
}
}
return false, nil
}
func (s *FirewallSettingService) operateDocker(ctx context.Context, request dto.FirewallBackendOperation) error {
guard := newDockerFirewallRuntime(request.Backend)
if request.Operation == "cleanup" {
if err := guard.Cleanup(); err != nil {
return err
}
return settingRepo.UpdateOrCreate(constant.FirewallDockerPortGuardStatusKey, constant.StatusDisable)
}
previous, _ := settingRepo.GetValueByKey(constant.FirewallDockerBackendKey)
if request.Operation == "select" {
current := previous
if current == "" {
current = constant.FirewallProviderNftables
if request.Backend == constant.FirewallProviderNftables {
current = constant.FirewallProviderIptables
}
}
initialized, err := dockerGuardBackendInitialized(current)
if err != nil {
return err
}
if current != request.Backend && initialized {
return buserr.WithMap("ErrFirewallBackendCleanupRequired", map[string]interface{}{"current": current, "target": request.Backend}, nil)
}
}
if err := settingRepo.UpdateOrCreate(constant.FirewallDockerBackendKey, request.Backend); err != nil {
return err
}
if request.Operation == "select" {
if err := (&DockerService{}).UpdateFirewallBackend(request.Backend); err != nil {
_ = settingRepo.UpdateOrCreate(constant.FirewallDockerBackendKey, previous)
return err
}
}
if request.Operation == "initialize" {
if err := newDockerPortGuardService().Operate(ctx, dto.DockerPortGuardOperation{Operation: "initialize"}); err != nil {
_ = settingRepo.UpdateOrCreate(constant.FirewallDockerBackendKey, previous)
return err
}
}
return nil
}
func dockerGuardBackendInitialized(backend string) (bool, error) {
guard := newDockerFirewallRuntime(backend)
for _, family := range []string{dockerfirewall.FamilyIPv4, dockerfirewall.FamilyIPv6} {
initialized, err := guard.Initialized(family)
if err != nil {
return false, err
}
if initialized {
return true, nil
}
}
return false, nil
}