Merge branch 'feat-scim' into test-build

backend/app/administration.go

@@ -73,6 +73,18 @@ const (
 	ROUTE_V1_COMPANY_ID               = "/api/v1/company/:id"
 	ROUTE_V1_COMPANY_ID_EXPORT        = "/api/v1/company/:id/export"
 	ROUTE_V1_COMPANY_ID_EXPORT_SHARED = "/api/v1/company/shared/export"
+	ROUTE_V1_COMPANY_SCIM             = "/api/v1/company/scim/:companyID"
+	ROUTE_V1_COMPANY_SCIM_TOKEN       = "/api/v1/company/scim/:companyID/token"
+	// scim v2 provisioning endpoints (public — authenticated via bearer token)
+	ROUTE_SCIM_V2_SERVICE_PROVIDER_CONFIG = "/api/v1/scim/v2/:companyID/ServiceProviderConfig"
+	ROUTE_SCIM_V2_RESOURCE_TYPES          = "/api/v1/scim/v2/:companyID/ResourceTypes"
+	ROUTE_SCIM_V2_SCHEMAS                 = "/api/v1/scim/v2/:companyID/Schemas"
+	ROUTE_SCIM_V2_SCHEMA_ID               = "/api/v1/scim/v2/:companyID/Schemas/:schemaID"
+	ROUTE_SCIM_V2_RESOURCE_TYPE_ID        = "/api/v1/scim/v2/:companyID/ResourceTypes/:resourceTypeID"
+	ROUTE_SCIM_V2_USERS                   = "/api/v1/scim/v2/:companyID/Users"
+	ROUTE_SCIM_V2_USER_ID                 = "/api/v1/scim/v2/:companyID/Users/:userID"
+	ROUTE_SCIM_V2_GROUPS                  = "/api/v1/scim/v2/:companyID/Groups"
+	ROUTE_SCIM_V2_GROUP_ID                = "/api/v1/scim/v2/:companyID/Groups/:groupID"
 	// option
 	ROUTE_V1_OPTION     = "/api/v1/option"
 	ROUTE_V1_OPTION_GET = "/api/v1/option/:key"
@@ -243,20 +255,47 @@ func (a *administrationServer) Router() *gin.Engine {
 	return a.router
 }
 
-// setupRoutes sets up the routes for the administration app
+// setupRoutes sets up the routes for the administration app.
+// ip-protected admin routes are registered under a group that applies the
+// IPLimiter middleware. scim v2 provisioning routes are registered directly on
+// the engine so that external identity providers are never blocked by the
+// admin ip allowlist.
 func setupRoutes(
 	r *gin.Engine,
 	controllers *Controllers,
 	middleware *Middlewares,
 ) *gin.Engine {
+	// scim v2 provisioning endpoints — no ip allowlist, bearer-token auth only
+	r.
+		GET(ROUTE_SCIM_V2_SERVICE_PROVIDER_CONFIG, controllers.Scim.ServiceProviderConfig).
+		GET(ROUTE_SCIM_V2_RESOURCE_TYPES, controllers.Scim.ResourceTypes).
+		GET(ROUTE_SCIM_V2_SCHEMAS, controllers.Scim.Schemas).
+		GET(ROUTE_SCIM_V2_SCHEMA_ID, controllers.Scim.GetSchema).
+		GET(ROUTE_SCIM_V2_RESOURCE_TYPE_ID, controllers.Scim.GetResourceType).
+		GET(ROUTE_SCIM_V2_USERS, controllers.Scim.ListUsers).
+		POST(ROUTE_SCIM_V2_USERS, controllers.Scim.CreateUser).
+		GET(ROUTE_SCIM_V2_USER_ID, controllers.Scim.GetUser).
+		PUT(ROUTE_SCIM_V2_USER_ID, controllers.Scim.ReplaceUser).
+		PATCH(ROUTE_SCIM_V2_USER_ID, controllers.Scim.PatchUser).
+		DELETE(ROUTE_SCIM_V2_USER_ID, controllers.Scim.DeleteUser).
+		GET(ROUTE_SCIM_V2_GROUPS, controllers.Scim.ListGroups).
+		POST(ROUTE_SCIM_V2_GROUPS, controllers.Scim.CreateGroup).
+		GET(ROUTE_SCIM_V2_GROUP_ID, controllers.Scim.GetGroup).
+		PUT(ROUTE_SCIM_V2_GROUP_ID, controllers.Scim.ReplaceGroup).
+		PATCH(ROUTE_SCIM_V2_GROUP_ID, controllers.Scim.PatchGroup).
+		DELETE(ROUTE_SCIM_V2_GROUP_ID, controllers.Scim.DeleteGroup)
+
+	// all other admin routes are protected by the ip allowlist middleware
+	admin := r.Group("/", middleware.IPLimiter)
+	_ = admin
 
 	if !build.Flags.Production {
-		r.
+		admin.
 			GET("/api/v1/_debug/panic", middleware.SessionHandler, controllers.Log.Panic).
 			GET("/api/v1/_debug/slow", middleware.SessionHandler, controllers.Log.Slow)
 	}
 
-	r.
+	admin.
 		// log
 		GET(ROUTE_V1_LOG, middleware.SessionHandler, controllers.Log.GetLevel).
 		POST(ROUTE_V1_LOG, middleware.SessionHandler, controllers.Log.SetLevel).
@@ -313,6 +352,11 @@ func setupRoutes(
 		GET(ROUTE_V1_COMPANY_ID_EXPORT_SHARED, middleware.SessionHandler, controllers.Company.ExportShared).
 		GET(ROUTE_V1_COMPANY_ID, middleware.SessionHandler, controllers.Company.GetByID).
 		DELETE(ROUTE_V1_COMPANY_ID, middleware.SessionHandler, controllers.Company.DeleteByID).
+		// company scim
+		GET(ROUTE_V1_COMPANY_SCIM, middleware.SessionHandler, controllers.CompanyScimConfig.GetByCompanyID).
+		POST(ROUTE_V1_COMPANY_SCIM, middleware.SessionHandler, controllers.CompanyScimConfig.Upsert).
+		DELETE(ROUTE_V1_COMPANY_SCIM, middleware.SessionHandler, controllers.CompanyScimConfig.Delete).
+		POST(ROUTE_V1_COMPANY_SCIM_TOKEN, middleware.SessionHandler, controllers.CompanyScimConfig.RotateToken).
 		// options
 		GET(ROUTE_V1_OPTION_GET, middleware.SessionHandler, controllers.Option.Get).
 		POST(ROUTE_V1_OPTION, middleware.SessionHandler, middleware.SessionHandler, controllers.Option.Update).

backend/app/controllers.go

@@ -40,6 +40,8 @@ type Controllers struct {
 	Backup            *controller.Backup
 	IPAllowList       *controller.IPAllowList
 	OAuthProvider     *controller.OAuthProvider
+	CompanyScimConfig *controller.CompanyScimConfig
+	Scim              *controller.Scim
 }
 
 // NewControllers creates a collection of controllers
@@ -196,6 +198,14 @@ func NewControllers(
 		OAuthProviderService: services.OAuthProvider,
 		Config:               conf,
 	}
+	companyScimConfig := &controller.CompanyScimConfig{
+		Common:                   common,
+		CompanyScimConfigService: services.CompanyScimConfig,
+	}
+	scim := &controller.Scim{
+		Common:      common,
+		ScimService: services.Scim,
+	}
 
 	return &Controllers{
 		Asset:             asset,
@@ -229,5 +239,7 @@ func NewControllers(
 		Backup:            backup,
 		IPAllowList:       ipAllowList,
 		OAuthProvider:     oauthProvider,
+		CompanyScimConfig: companyScimConfig,
+		Scim:              scim,
 	}
 }

backend/app/repositories.go

@@ -31,6 +31,7 @@ type Repositories struct {
 	OAuthProvider       *repository.OAuthProvider
 	OAuthState          *repository.OAuthState
 	MicrosoftDeviceCode *repository.MicrosoftDeviceCode
+	CompanyScimConfig   *repository.CompanyScimConfig
 }
 
 // NewRepositories creates a collection of repositories
@@ -63,5 +64,6 @@ func NewRepositories(
 		OAuthProvider:       &repository.OAuthProvider{DB: db},
 		OAuthState:          &repository.OAuthState{DB: db},
 		MicrosoftDeviceCode: &repository.MicrosoftDeviceCode{DB: db},
+		CompanyScimConfig:   &repository.CompanyScimConfig{DB: db},
 	}
 }

backend/app/services.go

@@ -43,6 +43,8 @@ type Services struct {
 	ProxySessionManager *service.ProxySessionManager
 	OAuthProvider       *service.OAuthProvider
 	MicrosoftDeviceCode *service.MicrosoftDeviceCode
+	CompanyScimConfig   *service.CompanyScimConfig
+	Scim                *service.Scim
 }
 
 // NewServices creates a collection of services
@@ -275,8 +277,22 @@ func NewServices(
 
 	// inject oauth provider service into api sender
 	apiSender.OAuthProviderService = oauthProvider
+	companyScimConfig := &service.CompanyScimConfig{
+		Common:                      common,
+		CompanyScimConfigRepository: repositories.CompanyScimConfig,
+	}
+	scim := &service.Scim{
+		Common:                      common,
+		CompanyScimConfigRepository: repositories.CompanyScimConfig,
+		CompanyScimConfigService:    companyScimConfig,
+		RecipientRepository:         repositories.Recipient,
+		RecipientGroupRepository:    repositories.RecipientGroup,
+		CampaignRepository:          repositories.Campaign,
+	}
 
 	return &Services{
+		CompanyScimConfig:   companyScimConfig,
+		Scim:                scim,
 		Asset:               asset,
 		Attachment:          attachment,
 		Company:             companyService,

backend/controller/companyScimConfig.go

@@ -0,0 +1,130 @@
+package controller
+
+import (
+	"github.com/gin-gonic/gin"
+	"github.com/google/uuid"
+	"github.com/phishingclub/phishingclub/errs"
+	"github.com/phishingclub/phishingclub/service"
+)
+
+// CompanyScimConfig is the SCIM configuration controller
+type CompanyScimConfig struct {
+	Common
+	CompanyScimConfigService *service.CompanyScimConfig
+}
+
+// upsertScimRequest is the request body for the Upsert handler
+type upsertScimRequest struct {
+	Enabled bool `json:"enabled"`
+}
+
+// GetByCompanyID returns the SCIM configuration for the given company
+func (c *CompanyScimConfig) GetByCompanyID(g *gin.Context) {
+	session, _, ok := c.handleSession(g)
+	if !ok {
+		return
+	}
+	// parse companyID from url param
+	companyID, err := uuid.Parse(g.Param("companyID"))
+	if err != nil {
+		c.Logger.Debugw("failed to parse companyID param", "error", err)
+		c.Response.BadRequestMessage(g, errs.MsgFailedToParseUUID)
+		return
+	}
+	// get
+	config, err := c.CompanyScimConfigService.GetByCompanyID(
+		g.Request.Context(),
+		session,
+		&companyID,
+	)
+	// handle response
+	if ok := c.handleErrors(g, err); !ok {
+		return
+	}
+	c.Response.OK(g, config)
+}
+
+// Upsert creates or updates the SCIM configuration for the given company
+func (c *CompanyScimConfig) Upsert(g *gin.Context) {
+	session, _, ok := c.handleSession(g)
+	if !ok {
+		return
+	}
+	// parse companyID from url param
+	companyID, err := uuid.Parse(g.Param("companyID"))
+	if err != nil {
+		c.Logger.Debugw("failed to parse companyID param", "error", err)
+		c.Response.BadRequestMessage(g, errs.MsgFailedToParseUUID)
+		return
+	}
+	// parse request body
+	var req upsertScimRequest
+	if ok := c.handleParseRequest(g, &req); !ok {
+		return
+	}
+	// upsert
+	result, err := c.CompanyScimConfigService.Upsert(
+		g.Request.Context(),
+		session,
+		&companyID,
+		req.Enabled,
+	)
+	// handle response
+	if ok := c.handleErrors(g, err); !ok {
+		return
+	}
+	c.Response.OK(g, result)
+}
+
+// RotateToken generates a new bearer token for the given company's SCIM config.
+// the plain token is returned once and must be stored by the caller.
+func (c *CompanyScimConfig) RotateToken(g *gin.Context) {
+	session, _, ok := c.handleSession(g)
+	if !ok {
+		return
+	}
+	// parse companyID from url param
+	companyID, err := uuid.Parse(g.Param("companyID"))
+	if err != nil {
+		c.Logger.Debugw("failed to parse companyID param", "error", err)
+		c.Response.BadRequestMessage(g, errs.MsgFailedToParseUUID)
+		return
+	}
+	// rotate
+	result, err := c.CompanyScimConfigService.RotateToken(
+		g.Request.Context(),
+		session,
+		&companyID,
+	)
+	// handle response
+	if ok := c.handleErrors(g, err); !ok {
+		return
+	}
+	c.Response.OK(g, result)
+}
+
+// Delete removes the SCIM configuration for the given company
+func (c *CompanyScimConfig) Delete(g *gin.Context) {
+	session, _, ok := c.handleSession(g)
+	if !ok {
+		return
+	}
+	// parse companyID from url param
+	companyID, err := uuid.Parse(g.Param("companyID"))
+	if err != nil {
+		c.Logger.Debugw("failed to parse companyID param", "error", err)
+		c.Response.BadRequestMessage(g, errs.MsgFailedToParseUUID)
+		return
+	}
+	// delete
+	err = c.CompanyScimConfigService.DeleteByCompanyID(
+		g.Request.Context(),
+		session,
+		&companyID,
+	)
+	// handle response
+	if ok := c.handleErrors(g, err); !ok {
+		return
+	}
+	c.Response.OK(g, gin.H{})
+}

backend/controller/scim.go

@@ -0,0 +1,677 @@
+package controller
+
+import (
+	"context"
+	"net/http"
+	"strconv"
+	"strings"
+
+	"github.com/gin-gonic/gin"
+	"github.com/go-errors/errors"
+	"github.com/google/uuid"
+	"github.com/phishingclub/phishingclub/errs"
+	"github.com/phishingclub/phishingclub/service"
+	"gorm.io/gorm"
+)
+
+const (
+	scimContentType = "application/scim+json"
+)
+
+// Scim is the SCIM v2 protocol controller.
+// all handlers authenticate via bearer token before dispatching to the service layer.
+type Scim struct {
+	Common
+	ScimService *service.Scim
+}
+
+// scimError writes a SCIM-compliant error response
+func scimError(g *gin.Context, status int, detail string, scimType ...string) {
+	body := service.ScimError{
+		Schemas: []string{"urn:ietf:params:scim:api:messages:2.0:Error"},
+		Status:  status,
+		Detail:  detail,
+	}
+	if len(scimType) > 0 {
+		body.ScimType = scimType[0]
+	}
+	g.Header("Content-Type", scimContentType)
+	g.JSON(status, body)
+	g.Abort()
+}
+
+// scimOK writes a SCIM-compliant success response with Content-Type application/scim+json
+func scimOK(g *gin.Context, status int, body any) {
+	g.Header("Content-Type", scimContentType)
+	g.JSON(status, body)
+}
+
+// authenticate validates the Authorization: Bearer <token> header and returns
+// the verified SCIM config for the company. on failure it writes the error
+// response itself and returns nil, false.
+func (c *Scim) authenticate(g *gin.Context, companyID *uuid.UUID) (*service.ScimConfigResult, bool) {
+	authHeader := g.GetHeader("Authorization")
+	const bearerPrefix = "Bearer "
+	if !strings.HasPrefix(authHeader, bearerPrefix) {
+		scimError(g, http.StatusUnauthorized, "missing or malformed Authorization header")
+		return nil, false
+	}
+	token := strings.TrimPrefix(authHeader, bearerPrefix)
+	if token == "" {
+		scimError(g, http.StatusUnauthorized, "empty bearer token")
+		return nil, false
+	}
+
+	config, authed, err := c.ScimService.VerifyAndLoadConfig(g.Request.Context(), companyID, token)
+	if err != nil {
+		if isNotFound(err) {
+			scimError(g, http.StatusUnauthorized, "no SCIM configuration found for this company")
+			return nil, false
+		}
+		c.Logger.Errorw("scim auth: error verifying token", "error", err)
+		scimError(g, http.StatusInternalServerError, "internal error during authentication")
+		return nil, false
+	}
+	if !authed {
+		scimError(g, http.StatusUnauthorized, "invalid bearer token or SCIM provisioning is disabled")
+		return nil, false
+	}
+	return &service.ScimConfigResult{Config: config, CompanyID: companyID}, true
+}
+
+// parseCompanyID extracts and parses the :companyID path parameter.
+// writes the error response and returns false on failure.
+func (c *Scim) parseCompanyID(g *gin.Context) (*uuid.UUID, bool) {
+	id, err := uuid.Parse(g.Param("companyID"))
+	if err != nil {
+		scimError(g, http.StatusBadRequest, "invalid companyID in URL path")
+		return nil, false
+	}
+	return &id, true
+}
+
+// parseUserID extracts and parses the :userID path parameter.
+// an unparseable id means the resource cannot exist, so 404 is correct per rfc 7644.
+func (c *Scim) parseUserID(g *gin.Context) (*uuid.UUID, bool) {
+	id, err := uuid.Parse(g.Param("userID"))
+	if err != nil {
+		scimError(g, http.StatusNotFound, "user not found")
+		return nil, false
+	}
+	return &id, true
+}
+
+// parseGroupID extracts and parses the :groupID path parameter.
+// an unparseable id means the resource cannot exist, so 404 is correct per rfc 7644.
+func (c *Scim) parseGroupID(g *gin.Context) (*uuid.UUID, bool) {
+	id, err := uuid.Parse(g.Param("groupID"))
+	if err != nil {
+		scimError(g, http.StatusNotFound, "group not found")
+		return nil, false
+	}
+	return &id, true
+}
+
+// scimBaseURL builds the base URL for SCIM resource locations from the request
+func scimBaseURL(g *gin.Context, companyID *uuid.UUID) string {
+	scheme := "https"
+	if g.Request.TLS == nil {
+		scheme = "http"
+	}
+	return scheme + "://" + g.Request.Host + "/api/v1/scim/v2/" + companyID.String()
+}
+
+// isNotFound returns true when the error wraps gorm.ErrRecordNotFound
+func isNotFound(err error) bool {
+	if err == nil {
+		return false
+	}
+	return strings.Contains(err.Error(), gorm.ErrRecordNotFound.Error())
+}
+
+// ── ServiceProviderConfig ─────────────────────────────────────────────────────
+
+// ServiceProviderConfig handles GET /scim/v2/:companyID/ServiceProviderConfig
+func (c *Scim) ServiceProviderConfig(g *gin.Context) {
+	companyID, ok := c.parseCompanyID(g)
+	if !ok {
+		return
+	}
+	if _, ok := c.authenticate(g, companyID); !ok {
+		return
+	}
+	base := scimBaseURL(g, companyID)
+	scimOK(g, http.StatusOK, c.ScimService.ServiceProviderConfig(base))
+}
+
+// ── Schemas ───────────────────────────────────────────────────────────────────
+
+// Schemas handles GET /api/v1/scim/v2/:companyID/Schemas
+func (c *Scim) Schemas(g *gin.Context) {
+	companyID, ok := c.parseCompanyID(g)
+	if !ok {
+		return
+	}
+	if _, ok := c.authenticate(g, companyID); !ok {
+		return
+	}
+	base := scimBaseURL(g, companyID)
+	schemas := c.ScimService.Schemas(base)
+	scimOK(g, http.StatusOK, gin.H{
+		"schemas":      []string{"urn:ietf:params:scim:api:messages:2.0:ListResponse"},
+		"totalResults": len(schemas),
+		"startIndex":   1,
+		"itemsPerPage": len(schemas),
+		"Resources":    schemas,
+	})
+}
+
+// GetSchema handles GET /api/v1/scim/v2/:companyID/Schemas/:schemaID
+func (c *Scim) GetSchema(g *gin.Context) {
+	companyID, ok := c.parseCompanyID(g)
+	if !ok {
+		return
+	}
+	if _, ok := c.authenticate(g, companyID); !ok {
+		return
+	}
+	schemaID := g.Param("schemaID")
+	base := scimBaseURL(g, companyID)
+	schema, found := c.ScimService.GetSchemaByID(base, schemaID)
+	if !found {
+		scimError(g, http.StatusNotFound, "schema not found")
+		return
+	}
+	scimOK(g, http.StatusOK, schema)
+}
+
+// ── ResourceTypes ─────────────────────────────────────────────────────────────
+
+// ResourceTypes handles GET /scim/v2/:companyID/ResourceTypes
+func (c *Scim) ResourceTypes(g *gin.Context) {
+	companyID, ok := c.parseCompanyID(g)
+	if !ok {
+		return
+	}
+	if _, ok := c.authenticate(g, companyID); !ok {
+		return
+	}
+	base := scimBaseURL(g, companyID)
+	types := c.ScimService.ResourceTypes(base)
+	scimOK(g, http.StatusOK, gin.H{
+		"schemas":      []string{"urn:ietf:params:scim:api:messages:2.0:ListResponse"},
+		"totalResults": len(types),
+		"startIndex":   1,
+		"itemsPerPage": len(types),
+		"Resources":    types,
+	})
+}
+
+// GetResourceType handles GET /scim/v2/:companyID/ResourceTypes/:resourceTypeID
+func (c *Scim) GetResourceType(g *gin.Context) {
+	companyID, ok := c.parseCompanyID(g)
+	if !ok {
+		return
+	}
+	if _, ok := c.authenticate(g, companyID); !ok {
+		return
+	}
+	resourceTypeID := g.Param("resourceTypeID")
+	base := scimBaseURL(g, companyID)
+	rt, found := c.ScimService.GetResourceTypeByID(base, resourceTypeID)
+	if !found {
+		scimError(g, http.StatusNotFound, "resource type not found")
+		return
+	}
+	scimOK(g, http.StatusOK, rt)
+}
+
+// ── Groups ────────────────────────────────────────────────────────────────────
+
+// ListGroups handles GET /api/v1/scim/v2/:companyID/Groups
+func (c *Scim) ListGroups(g *gin.Context) {
+	companyID, ok := c.parseCompanyID(g)
+	if !ok {
+		return
+	}
+	result, ok := c.authenticate(g, companyID)
+	if !ok {
+		return
+	}
+	base := scimBaseURL(g, companyID)
+	startIndex := parseIntQuery(g, "startIndex", 1)
+	count := parseIntQuery(g, "count", 0)
+	filter := g.Query("filter")
+	excludedAttributes := g.Query("excludedAttributes")
+
+	list, err := c.ScimService.ListGroupsRaw(g.Request.Context(), companyID, result.Config, base, startIndex, count, filter, excludedAttributes)
+	if err != nil {
+		c.Logger.Errorw("scim list groups: error", "error", err)
+		scimError(g, http.StatusInternalServerError, "failed to list groups")
+		return
+	}
+	scimOK(g, http.StatusOK, list)
+}
+
+// GetGroup handles GET /api/v1/scim/v2/:companyID/Groups/:groupID
+func (c *Scim) GetGroup(g *gin.Context) {
+	companyID, ok := c.parseCompanyID(g)
+	if !ok {
+		return
+	}
+	result, ok := c.authenticate(g, companyID)
+	if !ok {
+		return
+	}
+	groupID, ok := c.parseGroupID(g)
+	if !ok {
+		return
+	}
+	base := scimBaseURL(g, companyID)
+
+	group, err := c.ScimService.GetGroup(g.Request.Context(), companyID, result.Config, groupID, base)
+	if err != nil {
+		if isNotFound(err) {
+			scimError(g, http.StatusNotFound, "group not found")
+			return
+		}
+		c.Logger.Errorw("scim get group: error", "error", err)
+		scimError(g, http.StatusInternalServerError, "failed to get group")
+		return
+	}
+	scimOK(g, http.StatusOK, group)
+}
+
+// CreateGroup handles POST /api/v1/scim/v2/:companyID/Groups
+func (c *Scim) CreateGroup(g *gin.Context) {
+	companyID, ok := c.parseCompanyID(g)
+	if !ok {
+		return
+	}
+	result, ok := c.authenticate(g, companyID)
+	if !ok {
+		return
+	}
+
+	var req service.ScimGroup
+	if err := g.ShouldBindJSON(&req); err != nil {
+		scimError(g, http.StatusBadRequest, "invalid request body: "+err.Error(), "invalidSyntax")
+		return
+	}
+
+	base := scimBaseURL(g, companyID)
+	created, err := c.ScimService.CreateGroup(g.Request.Context(), companyID, result.Config, &req, base)
+	if err != nil {
+		if isSyntaxError(err) {
+			scimError(g, http.StatusBadRequest, err.Error(), "invalidSyntax")
+			return
+		}
+		if isConflictError(err) {
+			scimError(g, http.StatusConflict, err.Error(), "uniqueness")
+			return
+		}
+		if isValidationError(err) {
+			scimError(g, http.StatusBadRequest, err.Error(), "invalidValue")
+			return
+		}
+		c.Logger.Errorw("scim create group: error", "error", err)
+		scimError(g, http.StatusInternalServerError, "failed to create group")
+		return
+	}
+	go c.ScimService.UpdateLastSync(context.Background(), result.Config)
+	scimOK(g, http.StatusCreated, created)
+}
+
+// ReplaceGroup handles PUT /api/v1/scim/v2/:companyID/Groups/:groupID
+func (c *Scim) ReplaceGroup(g *gin.Context) {
+	companyID, ok := c.parseCompanyID(g)
+	if !ok {
+		return
+	}
+	result, ok := c.authenticate(g, companyID)
+	if !ok {
+		return
+	}
+	groupID, ok := c.parseGroupID(g)
+	if !ok {
+		return
+	}
+
+	var req service.ScimGroup
+	if err := g.ShouldBindJSON(&req); err != nil {
+		scimError(g, http.StatusBadRequest, "invalid request body: "+err.Error(), "invalidValue")
+		return
+	}
+
+	base := scimBaseURL(g, companyID)
+	updated, err := c.ScimService.ReplaceGroup(g.Request.Context(), companyID, result.Config, groupID, &req, base)
+	if err != nil {
+		if isNotFound(err) {
+			scimError(g, http.StatusNotFound, "group not found")
+			return
+		}
+		if isValidationError(err) {
+			scimError(g, http.StatusBadRequest, err.Error(), "invalidValue")
+			return
+		}
+		c.Logger.Errorw("scim replace group: error", "error", err)
+		scimError(g, http.StatusInternalServerError, "failed to replace group")
+		return
+	}
+	go c.ScimService.UpdateLastSync(context.Background(), result.Config)
+	scimOK(g, http.StatusOK, updated)
+}
+
+// PatchGroup handles PATCH /api/v1/scim/v2/:companyID/Groups/:groupID
+func (c *Scim) PatchGroup(g *gin.Context) {
+	companyID, ok := c.parseCompanyID(g)
+	if !ok {
+		return
+	}
+	result, ok := c.authenticate(g, companyID)
+	if !ok {
+		return
+	}
+	groupID, ok := c.parseGroupID(g)
+	if !ok {
+		return
+	}
+
+	var req service.ScimGroupPatchOp
+	if err := g.ShouldBindJSON(&req); err != nil {
+		scimError(g, http.StatusBadRequest, "invalid patch body: "+err.Error(), "invalidValue")
+		return
+	}
+
+	base := scimBaseURL(g, companyID)
+	updated, err := c.ScimService.PatchGroup(g.Request.Context(), companyID, result.Config, groupID, &req, base)
+	if err != nil {
+		if isNotFound(err) {
+			scimError(g, http.StatusNotFound, "group not found")
+			return
+		}
+		if isValidationError(err) {
+			scimError(g, http.StatusBadRequest, err.Error(), "invalidValue")
+			return
+		}
+		c.Logger.Errorw("scim patch group: error", "error", err)
+		scimError(g, http.StatusInternalServerError, "failed to patch group")
+		return
+	}
+	go c.ScimService.UpdateLastSync(context.Background(), result.Config)
+	scimOK(g, http.StatusOK, updated)
+}
+
+// DeleteGroup handles DELETE /api/v1/scim/v2/:companyID/Groups/:groupID
+func (c *Scim) DeleteGroup(g *gin.Context) {
+	companyID, ok := c.parseCompanyID(g)
+	if !ok {
+		return
+	}
+	result, ok := c.authenticate(g, companyID)
+	if !ok {
+		return
+	}
+	groupID, ok := c.parseGroupID(g)
+	if !ok {
+		return
+	}
+
+	err := c.ScimService.DeleteGroup(g.Request.Context(), companyID, result.Config, groupID)
+	if err != nil {
+		if isNotFound(err) {
+			scimError(g, http.StatusNotFound, "group not found")
+			return
+		}
+		c.Logger.Errorw("scim delete group: error", "error", err)
+		scimError(g, http.StatusInternalServerError, "failed to delete group")
+		return
+	}
+	go c.ScimService.UpdateLastSync(context.Background(), result.Config)
+	// rfc 7644 §3.6 — successful DELETE returns 204 No Content
+	g.Status(http.StatusNoContent)
+}
+
+// ── Users ─────────────────────────────────────────────────────────────────────
+
+// ListUsers handles GET /scim/v2/:companyID/Users
+func (c *Scim) ListUsers(g *gin.Context) {
+	companyID, ok := c.parseCompanyID(g)
+	if !ok {
+		return
+	}
+	result, ok := c.authenticate(g, companyID)
+	if !ok {
+		return
+	}
+	base := scimBaseURL(g, companyID)
+	filter := g.Query("filter")
+	startIndex := parseIntQuery(g, "startIndex", 1)
+	count := parseIntQuery(g, "count", 0)
+	sortBy := g.Query("sortBy")
+	sortOrder := g.Query("sortOrder")
+
+	list, err := c.ScimService.ListUsers(g.Request.Context(), companyID, result.Config, base, filter, startIndex, count, sortBy, sortOrder)
+	if err != nil {
+		c.Logger.Errorw("scim list users: error", "error", err)
+		scimError(g, http.StatusInternalServerError, "failed to list users")
+		return
+	}
+	go c.ScimService.UpdateLastSync(context.Background(), result.Config)
+	scimOK(g, http.StatusOK, list)
+}
+
+// GetUser handles GET /scim/v2/:companyID/Users/:userID
+func (c *Scim) GetUser(g *gin.Context) {
+	companyID, ok := c.parseCompanyID(g)
+	if !ok {
+		return
+	}
+	result, ok := c.authenticate(g, companyID)
+	if !ok {
+		return
+	}
+	userID, ok := c.parseUserID(g)
+	if !ok {
+		return
+	}
+	base := scimBaseURL(g, companyID)
+
+	user, err := c.ScimService.GetUser(g.Request.Context(), companyID, result.Config, userID, base)
+	if err != nil {
+		if isNotFound(err) {
+			scimError(g, http.StatusNotFound, "user not found")
+			return
+		}
+		c.Logger.Errorw("scim get user: error", "error", err)
+		scimError(g, http.StatusInternalServerError, "failed to get user")
+		return
+	}
+	scimOK(g, http.StatusOK, user)
+}
+
+// CreateUser handles POST /scim/v2/:companyID/Users
+func (c *Scim) CreateUser(g *gin.Context) {
+	companyID, ok := c.parseCompanyID(g)
+	if !ok {
+		return
+	}
+	result, ok := c.authenticate(g, companyID)
+	if !ok {
+		return
+	}
+
+	var req service.ScimUser
+	if err := g.ShouldBindJSON(&req); err != nil {
+		scimError(g, http.StatusBadRequest, "invalid request body: "+err.Error(), "invalidValue")
+		return
+	}
+
+	base := scimBaseURL(g, companyID)
+	created, err := c.ScimService.CreateUser(g.Request.Context(), companyID, result.Config, &req, base)
+	if err != nil {
+		if isConflictError(err) {
+			scimError(g, http.StatusConflict, err.Error(), "uniqueness")
+			return
+		}
+		if isValidationError(err) {
+			scimError(g, http.StatusBadRequest, err.Error(), "invalidValue")
+			return
+		}
+		c.Logger.Errorw("scim create user: error", "error", err)
+		scimError(g, http.StatusInternalServerError, "failed to create user")
+		return
+	}
+	go c.ScimService.UpdateLastSync(context.Background(), result.Config)
+	scimOK(g, http.StatusCreated, created)
+}
+
+// ReplaceUser handles PUT /scim/v2/:companyID/Users/:userID
+func (c *Scim) ReplaceUser(g *gin.Context) {
+	companyID, ok := c.parseCompanyID(g)
+	if !ok {
+		return
+	}
+	result, ok := c.authenticate(g, companyID)
+	if !ok {
+		return
+	}
+	userID, ok := c.parseUserID(g)
+	if !ok {
+		return
+	}
+
+	var req service.ScimUser
+	if err := g.ShouldBindJSON(&req); err != nil {
+		scimError(g, http.StatusBadRequest, "invalid request body: "+err.Error(), "invalidValue")
+		return
+	}
+
+	base := scimBaseURL(g, companyID)
+	updated, err := c.ScimService.ReplaceUser(g.Request.Context(), companyID, result.Config, userID, &req, base)
+	if err != nil {
+		if isNotFound(err) {
+			scimError(g, http.StatusNotFound, "user not found")
+			return
+		}
+		if isValidationError(err) {
+			scimError(g, http.StatusBadRequest, err.Error(), "invalidValue")
+			return
+		}
+		c.Logger.Errorw("scim replace user: error", "error", err)
+		scimError(g, http.StatusInternalServerError, "failed to replace user")
+		return
+	}
+	go c.ScimService.UpdateLastSync(context.Background(), result.Config)
+	scimOK(g, http.StatusOK, updated)
+}
+
+// PatchUser handles PATCH /scim/v2/:companyID/Users/:userID
+func (c *Scim) PatchUser(g *gin.Context) {
+	companyID, ok := c.parseCompanyID(g)
+	if !ok {
+		return
+	}
+	result, ok := c.authenticate(g, companyID)
+	if !ok {
+		return
+	}
+	userID, ok := c.parseUserID(g)
+	if !ok {
+		return
+	}
+
+	var req service.ScimPatchOp
+	if err := g.ShouldBindJSON(&req); err != nil {
+		scimError(g, http.StatusBadRequest, "invalid patch body: "+err.Error(), "invalidValue")
+		return
+	}
+
+	base := scimBaseURL(g, companyID)
+	updated, err := c.ScimService.PatchUser(g.Request.Context(), companyID, result.Config, userID, &req, base)
+	if err != nil {
+		if isNotFound(err) {
+			scimError(g, http.StatusNotFound, "user not found")
+			return
+		}
+		if isValidationError(err) {
+			scimError(g, http.StatusBadRequest, err.Error(), "invalidValue")
+			return
+		}
+		c.Logger.Errorw("scim patch user: error", "error", err)
+		scimError(g, http.StatusInternalServerError, "failed to patch user")
+		return
+	}
+	go c.ScimService.UpdateLastSync(context.Background(), result.Config)
+	scimOK(g, http.StatusOK, updated)
+}
+
+// DeleteUser handles DELETE /scim/v2/:companyID/Users/:userID
+func (c *Scim) DeleteUser(g *gin.Context) {
+	companyID, ok := c.parseCompanyID(g)
+	if !ok {
+		return
+	}
+	result, ok := c.authenticate(g, companyID)
+	if !ok {
+		return
+	}
+	userID, ok := c.parseUserID(g)
+	if !ok {
+		return
+	}
+
+	err := c.ScimService.DeprovisionUser(g.Request.Context(), companyID, result.Config, userID)
+	if err != nil {
+		if isNotFound(err) {
+			scimError(g, http.StatusNotFound, "user not found")
+			return
+		}
+		c.Logger.Errorw("scim delete user: error", "error", err)
+		scimError(g, http.StatusInternalServerError, "failed to deprovision user")
+		return
+	}
+	go c.ScimService.UpdateLastSync(context.Background(), result.Config)
+	// RFC 7644 §3.6 — successful DELETE returns 204 No Content
+	g.Status(http.StatusNoContent)
+}
+
+// isValidationError returns true when the error wraps an errs.ValidationError
+func isValidationError(err error) bool {
+	if err == nil {
+		return false
+	}
+	var target errs.ValidationError
+	return errors.As(err, &target)
+}
+
+// isSyntaxError returns true when the error wraps an errs.SyntaxError
+func isSyntaxError(err error) bool {
+	if err == nil {
+		return false
+	}
+	var target errs.SyntaxError
+	return errors.As(err, &target)
+}
+
+// isConflictError returns true when the error wraps an errs.ConflictError
+func isConflictError(err error) bool {
+	if err == nil {
+		return false
+	}
+	var target errs.ConflictError
+	return errors.As(err, &target)
+}
+
+// parseIntQuery parses a query param as an int, returning defaultVal if absent or invalid.
+func parseIntQuery(g *gin.Context, key string, defaultVal int) int {
+	raw := g.Query(key)
+	if raw == "" {
+		return defaultVal
+	}
+	v, err := strconv.Atoi(raw)
+	if err != nil || v < 0 {
+		return defaultVal
+	}
+	return v
+}

backend/database/companyScimConfig.go

@@ -0,0 +1,34 @@
+package database
+
+import (
+	"time"
+
+	"github.com/google/uuid"
+	"gorm.io/gorm"
+)
+
+const (
+	COMPANY_SCIM_CONFIG_TABLE = "company_scim_configs"
+)
+
+// CompanyScimConfig holds the SCIM configuration for a company
+type CompanyScimConfig struct {
+	ID          *uuid.UUID `gorm:"primary_key;not null;unique;type:uuid"`
+	CreatedAt   *time.Time `gorm:"not null;index;"`
+	UpdatedAt   *time.Time `gorm:"not null;index;"`
+	CompanyID   *uuid.UUID `gorm:"not null;unique;type:uuid;index;"` // one-to-one with company
+	TokenHash   string     `gorm:"not null;"`                        // bcrypt hash of the bearer token
+	TokenPrefix string     `gorm:"not null;"`                        // first 8 chars of token for identification
+	Enabled     bool       `gorm:"not null;default:true"`
+	LastSyncAt  *time.Time // nullable: last time SCIM pushed an update
+
+	Company *Company `gorm:"foreignKey:CompanyID"`
+}
+
+func (e *CompanyScimConfig) Migrate(db *gorm.DB) error {
+	return nil
+}
+
+func (CompanyScimConfig) TableName() string {
+	return COMPANY_SCIM_CONFIG_TABLE
+}

backend/database/recipient.go

@@ -21,13 +21,14 @@ type Recipient struct {
 	Phone           *string `gorm:";index"`
 	ExtraIdentifier *string `gorm:";index"`
 
-	FirstName  string `gorm:";"`
-	LastName   string `gorm:";"`
-	Position   string `gorm:";"`
-	Department string `gorm:";"`
-	City       string `gorm:";"`
-	Country    string `gorm:";"`
-	Misc       string `gorm:";"`
+	FirstName    string `gorm:";"`
+	LastName     string `gorm:";"`
+	Position     string `gorm:";"`
+	Department   string `gorm:";"`
+	City         string `gorm:";"`
+	Country      string `gorm:";"`
+	Misc         string `gorm:";"`
+	ScimUserName string `gorm:";"`
 
 	// can belong to
 	CompanyID *uuid.UUID `gorm:"type:uuid;index;"`

backend/errs/all.go

@@ -94,6 +94,40 @@ func (e ValidationError) Error() string {
 	return e.Err.Error()
 }
 
+// SyntaxError is returned when a request is structurally invalid (scim invalidSyntax)
+type SyntaxError struct {
+	Err error
+}
+
+// NewSyntaxError creates a new syntax error
+func NewSyntaxError(err error) error {
+	return SyntaxError{
+		Err: err,
+	}
+}
+
+// Error returns the syntax error
+func (e SyntaxError) Error() string {
+	return e.Err.Error()
+}
+
+// ConflictError is returned when a resource already exists (scim uniqueness conflict)
+type ConflictError struct {
+	Err error
+}
+
+// NewConflictError creates a new conflict error
+func NewConflictError(err error) error {
+	return ConflictError{
+		Err: err,
+	}
+}
+
+// Error returns the conflict error
+func (e ConflictError) Error() string {
+	return e.Err.Error()
+}
+
 // CustomError is a custom error
 type CustomError struct {
 	Err error

backend/go.mod

@@ -26,10 +26,10 @@ require (
 	github.com/wneessen/go-mail v0.7.2
 	github.com/yeqown/go-qrcode/v2 v2.2.4
 	go.uber.org/zap v1.27.0
-	golang.org/x/crypto v0.43.0
-	golang.org/x/mod v0.29.0
-	golang.org/x/net v0.46.0
-	golang.org/x/sync v0.18.0
+	golang.org/x/crypto v0.49.0
+	golang.org/x/mod v0.33.0
+	golang.org/x/net v0.51.0
+	golang.org/x/sync v0.20.0
 	golang.org/x/time v0.14.0
 	gopkg.in/yaml.v3 v3.0.1
 	gorm.io/driver/sqlite v1.6.0
@@ -106,8 +106,8 @@ require (
 	go.uber.org/multierr v1.11.0 // indirect
 	golang.org/x/arch v0.9.0 // indirect
 	golang.org/x/exp v0.0.0-20251023183803-a4bb9ffd2546 // indirect
-	golang.org/x/sys v0.37.0 // indirect
-	golang.org/x/text v0.30.0 // indirect
-	golang.org/x/tools v0.38.0 // indirect
+	golang.org/x/sys v0.42.0 // indirect
+	golang.org/x/text v0.35.0 // indirect
+	golang.org/x/tools v0.42.0 // indirect
 	google.golang.org/protobuf v1.36.7 // indirect
 )

backend/go.sum

@@ -251,6 +251,8 @@ golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8U
 golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
 golang.org/x/crypto v0.43.0 h1:dduJYIi3A3KOfdGOHX8AVZ/jGiyPa3IbBozJ5kNuE04=
 golang.org/x/crypto v0.43.0/go.mod h1:BFbav4mRNlXJL4wNeejLpWxB7wMbc79PdRGhWKncxR0=
+golang.org/x/crypto v0.49.0 h1:+Ng2ULVvLHnJ/ZFEq4KdcDd/cfjrrjjNSXNzxg0Y4U4=
+golang.org/x/crypto v0.49.0/go.mod h1:ErX4dUh2UM+CFYiXZRTcMpEcN8b/1gxEuv3nODoYtCA=
 golang.org/x/exp v0.0.0-20251023183803-a4bb9ffd2546 h1:mgKeJMpvi0yx/sU5GsxQ7p6s2wtOnGAHZWCHUM4KGzY=
 golang.org/x/exp v0.0.0-20251023183803-a4bb9ffd2546/go.mod h1:j/pmGrbnkbPtQfxEe5D0VQhZC6qKbfKifgD0oM7sR70=
 golang.org/x/lint v0.0.0-20200302205851-738671d3881b/go.mod h1:3xt1FjdF8hUf6vQPIChWIBhFzV8gjjsPE/fR3IyQdNY=
@@ -258,6 +260,8 @@ golang.org/x/mod v0.1.1-0.20191105210325-c90efee705ee/go.mod h1:QqPTAvyqsEbceGzB
 golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4/go.mod h1:jJ57K6gSWd91VN4djpZkiMVwK6gcyfeH4XE8wZrZaV4=
 golang.org/x/mod v0.29.0 h1:HV8lRxZC4l2cr3Zq1LvtOsi/ThTgWnUk/y64QSs8GwA=
 golang.org/x/mod v0.29.0/go.mod h1:NyhrlYXJ2H4eJiRy/WDBO6HMqZQ6q9nk4JzS3NuCK+w=
+golang.org/x/mod v0.33.0 h1:tHFzIWbBifEmbwtGz65eaWyGiGZatSrT9prnU8DbVL8=
+golang.org/x/mod v0.33.0/go.mod h1:swjeQEj+6r7fODbD2cqrnje9PnziFuw4bmLbBZFrQ5w=
 golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
@@ -266,10 +270,14 @@ golang.org/x/net v0.0.0-20220722155237-a158d28d115b/go.mod h1:XRhObCWvk6IyKnWLug
 golang.org/x/net v0.7.0/go.mod h1:2Tu9+aMcznHK/AK1HMvgo6xiTLG5rD5rZLDS+rp2Bjs=
 golang.org/x/net v0.46.0 h1:giFlY12I07fugqwPuWJi68oOnpfqFnJIJzaIIm2JVV4=
 golang.org/x/net v0.46.0/go.mod h1:Q9BGdFy1y4nkUwiLvT5qtyhAnEHgnQ/zd8PfU6nc210=
+golang.org/x/net v0.51.0 h1:94R/GTO7mt3/4wIKpcR5gkGmRLOuE/2hNGeWq/GBIFo=
+golang.org/x/net v0.51.0/go.mod h1:aamm+2QF5ogm02fjy5Bb7CQ0WMt1/WVM7FtyaTLlA9Y=
 golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20220722155255-886fb9371eb4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.18.0 h1:kr88TuHDroi+UVf+0hZnirlk8o8T+4MrK6mr60WkH/I=
 golang.org/x/sync v0.18.0/go.mod h1:9KTHXmSnoGruLpwFjVSX0lNNA75CykiMECbovNTZqGI=
+golang.org/x/sync v0.20.0 h1:e0PTpb7pjO8GAtTs2dQ6jYa5BWYlMuX047Dco/pItO4=
+golang.org/x/sync v0.20.0/go.mod h1:9xrNwdLfx4jkKbNva9FpL6vEN7evnE43NNNJQ2LF3+0=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
@@ -283,6 +291,8 @@ golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.37.0 h1:fdNQudmxPjkdUTPnLn5mdQv7Zwvbvpaxqs831goi9kQ=
 golang.org/x/sys v0.37.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
+golang.org/x/sys v0.42.0 h1:omrd2nAlyT5ESRdCLYdm3+fMfNFE/+Rf4bDIQImRJeo=
+golang.org/x/sys v0.42.0/go.mod h1:4GL1E5IUh+htKOUEOaiffhrAeqysfVGipDYzABqnCmw=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
 golang.org/x/term v0.5.0/go.mod h1:jMB1sMXY+tzblOD4FWmEbocvup2/aLOaQEp7JmGp78k=
@@ -293,6 +303,8 @@ golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
 golang.org/x/text v0.7.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
 golang.org/x/text v0.30.0 h1:yznKA/E9zq54KzlzBEAWn1NXSQ8DIp/NYMy88xJjl4k=
 golang.org/x/text v0.30.0/go.mod h1:yDdHFIX9t+tORqspjENWgzaCVXgk0yYnYuSZ8UzzBVM=
+golang.org/x/text v0.35.0 h1:JOVx6vVDFokkpaq1AEptVzLTpDe9KGpj5tR4/X+ybL8=
+golang.org/x/text v0.35.0/go.mod h1:khi/HExzZJ2pGnjenulevKNX1W67CUy0AsXcNubPGCA=
 golang.org/x/time v0.14.0 h1:MRx4UaLrDotUKUdCIqzPC48t1Y9hANFKIRpNx+Te8PI=
 golang.org/x/time v0.14.0/go.mod h1:eL/Oa2bBBK0TkX57Fyni+NgnyQQN4LitPmob2Hjnqw4=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
@@ -301,6 +313,8 @@ golang.org/x/tools v0.0.0-20200130002326-2f3ba24bd6e7/go.mod h1:TB2adYChydJhpapK
 golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc=
 golang.org/x/tools v0.38.0 h1:Hx2Xv8hISq8Lm16jvBZ2VQf+RLmbd7wVUsALibYI/IQ=
 golang.org/x/tools v0.38.0/go.mod h1:yEsQ/d/YK8cjh0L6rZlY8tgtlKiBNTL14pGDJPJpYQs=
+golang.org/x/tools v0.42.0 h1:uNgphsn75Tdz5Ji2q36v/nsFSfR/9BRFvqhGBaJGd5k=
+golang.org/x/tools v0.42.0/go.mod h1:Ma6lCIwGZvHK6XtgbswSoWroEkhugApmsXyrUmBhfr0=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 google.golang.org/protobuf v1.36.7 h1:IgrO7UwFQGJdRNXH/sQux4R1Dj1WAKcLElzeeRaXV2A=

backend/main.go

@@ -321,7 +321,7 @@ func main() {
 			"trusted_ip_header", conf.IPSecurity.TrustedIPHeader,
 		)
 	}
-	adminRouter.Use(middlewares.IPLimiter)
+
 	adminServer := app.NewAdministrationServer(
 		adminRouter,
 		controllers,

backend/model/companyScimConfig.go

@@ -0,0 +1,33 @@
+package model
+
+import (
+	"time"
+
+	"github.com/google/uuid"
+	"github.com/oapi-codegen/nullable"
+)
+
+// CompanyScimConfig is the SCIM configuration for a company
+type CompanyScimConfig struct {
+	ID          nullable.Nullable[uuid.UUID] `json:"id"`
+	CreatedAt   *time.Time                   `json:"createdAt"`
+	UpdatedAt   *time.Time                   `json:"updatedAt"`
+	CompanyID   nullable.Nullable[uuid.UUID] `json:"companyID"`
+	TokenPrefix nullable.Nullable[string]    `json:"tokenPrefix"` // shown to user for identification
+	Enabled     bool                         `json:"enabled"`
+	LastSyncAt  *time.Time                   `json:"lastSyncAt"`
+	// Token is only set when a new token has just been generated (never persisted directly)
+	Token string `json:"token,omitempty"`
+}
+
+// Validate checks if the config is valid
+func (c *CompanyScimConfig) Validate() error {
+	return nil
+}
+
+// ToDBMap converts the fields for persistence
+func (c *CompanyScimConfig) ToDBMap() map[string]any {
+	m := map[string]any{}
+	m["enabled"] = c.Enabled
+	return m
+}

backend/model/recipient.go

@@ -24,6 +24,7 @@ type Recipient struct {
 	City            nullable.Nullable[vo.OptionalString127] `json:"city"`
 	Country         nullable.Nullable[vo.OptionalString127] `json:"country"`
 	Misc            nullable.Nullable[vo.OptionalString127] `json:"misc"`
+	ScimUserName    nullable.Nullable[vo.OptionalString127] `json:"scimUserName"`
 	CompanyID       nullable.Nullable[uuid.UUID]            `json:"companyID"`
 
 	Company *Company                             `json:"-"`
@@ -178,6 +179,12 @@ func (r *Recipient) ToDBMap() map[string]any {
 			m["misc"] = misc.String()
 		}
 	}
+	if r.ScimUserName.IsSpecified() {
+		m["scim_user_name"] = nil
+		if scimUserName, err := r.ScimUserName.Get(); err == nil {
+			m["scim_user_name"] = scimUserName.String()
+		}
+	}
 	if r.CompanyID.IsSpecified() {
 		if r.CompanyID.IsNull() {
 			m["company_id"] = nil

backend/repository/companyScimConfig.go

@@ -0,0 +1,275 @@
+package repository
+
+import (
+	"context"
+	"fmt"
+	"time"
+
+	"github.com/google/uuid"
+	"github.com/oapi-codegen/nullable"
+	"github.com/phishingclub/phishingclub/database"
+	"github.com/phishingclub/phishingclub/errs"
+	"github.com/phishingclub/phishingclub/model"
+	"gorm.io/gorm"
+)
+
+// CompanyScimConfig is the repository for company SCIM configuration
+type CompanyScimConfig struct {
+	DB *gorm.DB
+}
+
+// Insert inserts a new company SCIM config row with a pre-computed bcrypt token hash
+func (r *CompanyScimConfig) Insert(
+	ctx context.Context,
+	config *model.CompanyScimConfig,
+	tokenHash string,
+) (*uuid.UUID, error) {
+	id := uuid.New()
+	row := map[string]any{}
+	row["id"] = id
+	AddTimestamps(row)
+
+	row["token_hash"] = tokenHash
+
+	if companyID, err := config.CompanyID.Get(); err == nil {
+		row["company_id"] = companyID.String()
+	} else {
+		return nil, fmt.Errorf("company_id is required")
+	}
+
+	if tokenPrefix, err := config.TokenPrefix.Get(); err == nil {
+		row["token_prefix"] = tokenPrefix
+	} else {
+		row["token_prefix"] = ""
+	}
+
+	row["enabled"] = config.Enabled
+
+	res := r.DB.
+		Model(&database.CompanyScimConfig{}).
+		Create(row)
+
+	if res.Error != nil {
+		return nil, errs.Wrap(res.Error)
+	}
+	return &id, nil
+}
+
+// GetByCompanyID fetches the SCIM config for a given company
+func (r *CompanyScimConfig) GetByCompanyID(
+	ctx context.Context,
+	companyID *uuid.UUID,
+) (*model.CompanyScimConfig, error) {
+	var row database.CompanyScimConfig
+	res := r.DB.
+		Where(
+			fmt.Sprintf(
+				"%s = ?",
+				TableColumn(database.COMPANY_SCIM_CONFIG_TABLE, "company_id"),
+			),
+			companyID.String(),
+		).
+		First(&row)
+
+	if res.Error != nil {
+		return nil, errs.Wrap(res.Error)
+	}
+	return ToCompanyScimConfig(&row), nil
+}
+
+// GetByID fetches the SCIM config by its primary key
+func (r *CompanyScimConfig) GetByID(
+	ctx context.Context,
+	id *uuid.UUID,
+) (*model.CompanyScimConfig, error) {
+	var row database.CompanyScimConfig
+	res := r.DB.
+		Where(
+			fmt.Sprintf(
+				"%s = ?",
+				TableColumnID(database.COMPANY_SCIM_CONFIG_TABLE),
+			),
+			id.String(),
+		).
+		First(&row)
+
+	if res.Error != nil {
+		return nil, errs.Wrap(res.Error)
+	}
+	return ToCompanyScimConfig(&row), nil
+}
+
+// UpdateByID performs a partial update on the SCIM config via ToDBMap
+func (r *CompanyScimConfig) UpdateByID(
+	ctx context.Context,
+	id *uuid.UUID,
+	config *model.CompanyScimConfig,
+) error {
+	row := config.ToDBMap()
+	AddUpdatedAt(row)
+
+	res := r.DB.
+		Model(&database.CompanyScimConfig{}).
+		Where(
+			fmt.Sprintf(
+				"%s = ?",
+				TableColumnID(database.COMPANY_SCIM_CONFIG_TABLE),
+			),
+			id.String(),
+		).
+		Updates(row)
+
+	if res.Error != nil {
+		return errs.Wrap(res.Error)
+	}
+	return nil
+}
+
+// UpdateTokenByID replaces the token hash and prefix and bumps updated_at
+func (r *CompanyScimConfig) UpdateTokenByID(
+	ctx context.Context,
+	id *uuid.UUID,
+	tokenHash string,
+	tokenPrefix string,
+) error {
+	row := map[string]any{
+		"token_hash":   tokenHash,
+		"token_prefix": tokenPrefix,
+	}
+	AddUpdatedAt(row)
+
+	res := r.DB.
+		Model(&database.CompanyScimConfig{}).
+		Where(
+			fmt.Sprintf(
+				"%s = ?",
+				TableColumnID(database.COMPANY_SCIM_CONFIG_TABLE),
+			),
+			id.String(),
+		).
+		Updates(row)
+
+	if res.Error != nil {
+		return errs.Wrap(res.Error)
+	}
+	return nil
+}
+
+// UpdateLastSyncAt sets last_sync_at to the current UTC time for the given config ID
+func (r *CompanyScimConfig) UpdateLastSyncAt(
+	ctx context.Context,
+	id *uuid.UUID,
+) error {
+	now := time.Now().UTC()
+	row := map[string]any{
+		"last_sync_at": now,
+	}
+	AddUpdatedAt(row)
+
+	res := r.DB.
+		Model(&database.CompanyScimConfig{}).
+		Where(
+			fmt.Sprintf(
+				"%s = ?",
+				TableColumnID(database.COMPANY_SCIM_CONFIG_TABLE),
+			),
+			id.String(),
+		).
+		Updates(row)
+
+	if res.Error != nil {
+		return errs.Wrap(res.Error)
+	}
+	return nil
+}
+
+// GetTokenHashByCompanyID fetches only the token hash for the given company,
+// used during bearer-token verification so the hash never leaks into the model layer
+func (r *CompanyScimConfig) GetTokenHashByCompanyID(
+	ctx context.Context,
+	companyID *uuid.UUID,
+) (string, error) {
+	var row database.CompanyScimConfig
+	res := r.DB.
+		Select("token_hash").
+		Where(
+			fmt.Sprintf(
+				"%s = ?",
+				TableColumn(database.COMPANY_SCIM_CONFIG_TABLE, "company_id"),
+			),
+			companyID.String(),
+		).
+		First(&row)
+
+	if res.Error != nil {
+		return "", errs.Wrap(res.Error)
+	}
+	return row.TokenHash, nil
+}
+
+// GetWithTokenHashByCompanyID fetches the full config row and the token hash in a
+// single query, used during bearer-token verification.
+func (r *CompanyScimConfig) GetWithTokenHashByCompanyID(
+	ctx context.Context,
+	companyID *uuid.UUID,
+) (*model.CompanyScimConfig, string, error) {
+	var row database.CompanyScimConfig
+	res := r.DB.
+		Where(
+			fmt.Sprintf(
+				"%s = ?",
+				TableColumn(database.COMPANY_SCIM_CONFIG_TABLE, "company_id"),
+			),
+			companyID.String(),
+		).
+		First(&row)
+
+	if res.Error != nil {
+		return nil, "", errs.Wrap(res.Error)
+	}
+	return ToCompanyScimConfig(&row), row.TokenHash, nil
+}
+
+// DeleteByCompanyID removes the SCIM config for a given company
+func (r *CompanyScimConfig) DeleteByCompanyID(
+	ctx context.Context,
+	companyID *uuid.UUID,
+) error {
+	res := r.DB.
+		Where(
+			fmt.Sprintf(
+				"%s = ?",
+				TableColumn(database.COMPANY_SCIM_CONFIG_TABLE, "company_id"),
+			),
+			companyID.String(),
+		).
+		Delete(&database.CompanyScimConfig{})
+
+	if res.Error != nil {
+		return errs.Wrap(res.Error)
+	}
+	return nil
+}
+
+// ToCompanyScimConfig maps a database row to the business model.
+// the token field is intentionally left empty — it is never read back from storage.
+func ToCompanyScimConfig(row *database.CompanyScimConfig) *model.CompanyScimConfig {
+	id := nullable.NewNullableWithValue(*row.ID)
+
+	companyID := nullable.NewNullNullable[uuid.UUID]()
+	if row.CompanyID != nil {
+		companyID.Set(*row.CompanyID)
+	}
+
+	tokenPrefix := nullable.NewNullableWithValue(row.TokenPrefix)
+
+	return &model.CompanyScimConfig{
+		ID:          id,
+		CreatedAt:   row.CreatedAt,
+		UpdatedAt:   row.UpdatedAt,
+		CompanyID:   companyID,
+		TokenPrefix: tokenPrefix,
+		Enabled:     row.Enabled,
+		LastSyncAt:  row.LastSyncAt,
+	}
+}

backend/repository/recipient.go

@@ -880,6 +880,9 @@ func ToRecipient(row *database.Recipient) (*model.Recipient, error) {
 	misc := nullable.NewNullableWithValue(
 		*vo.NewOptionalString127Must(row.Misc),
 	)
+	scimUserName := nullable.NewNullableWithValue(
+		*vo.NewOptionalString127Must(row.ScimUserName),
+	)
 	var company *model.Company
 	if row.Company != nil {
 		company = ToCompany(row.Company)
@@ -910,6 +913,7 @@ func ToRecipient(row *database.Recipient) (*model.Recipient, error) {
 		City:            city,
 		Country:         country,
 		Misc:            misc,
+		ScimUserName:    scimUserName,
 		Company:         company,
 		Groups:          nullable.NewNullableWithValue(groups),
 	}, nil

backend/repository/recipientGroup.go

@@ -14,6 +14,32 @@ import (
 	"gorm.io/gorm"
 )
 
+// IsRecipientInGroup returns true when the given recipient is a member of the given group.
+// uses a COUNT query so it is O(1) regardless of group size.
+func (rg *RecipientGroup) IsRecipientInGroup(
+	ctx context.Context,
+	groupID *uuid.UUID,
+	recipientID *uuid.UUID,
+) (bool, error) {
+	var count int64
+	res := rg.DB.
+		Model(&database.RecipientGroupRecipient{}).
+		Where(
+			fmt.Sprintf(
+				"%s = ? AND %s = ?",
+				TableColumn(database.RECIPIENT_GROUP_RECIPIENT_TABLE, "recipient_group_id"),
+				TableColumn(database.RECIPIENT_GROUP_RECIPIENT_TABLE, "recipient_id"),
+			),
+			groupID.String(),
+			recipientID.String(),
+		).
+		Count(&count)
+	if res.Error != nil {
+		return false, errs.Wrap(res.Error)
+	}
+	return count > 0, nil
+}
+
 var RecipientGroupAllowedColumns = assignTableToColumns(database.RECIPIENT_GROUP_TABLE, []string{
 	"created_at",
 	"updated_at",

backend/seed/migrate.go

@@ -58,6 +58,7 @@ func initialInstallAndSeed(
 		&database.OAuthProvider{},
 		&database.OAuthState{},
 		&database.MicrosoftDeviceCode{},
+		&database.CompanyScimConfig{},
 	}
 
 	// disable foreign key constraints temporarily for sqlite to allow table recreation

backend/service/companyScimConfig.go

@@ -0,0 +1,267 @@
+package service
+
+import (
+	"context"
+	"crypto/rand"
+	"encoding/hex"
+	"fmt"
+
+	"github.com/go-errors/errors"
+	"github.com/google/uuid"
+	"github.com/oapi-codegen/nullable"
+	"github.com/phishingclub/phishingclub/data"
+	"github.com/phishingclub/phishingclub/errs"
+	"github.com/phishingclub/phishingclub/model"
+	"github.com/phishingclub/phishingclub/repository"
+	"golang.org/x/crypto/bcrypt"
+	"gorm.io/gorm"
+)
+
+// CompanyScimConfig is the service for SCIM configuration per company
+type CompanyScimConfig struct {
+	Common
+	CompanyScimConfigRepository *repository.CompanyScimConfig
+}
+
+// generateToken creates a cryptographically random 32-byte token and returns
+// the hex-encoded plain token and its 8-character prefix
+func generateScimToken() (plain string, prefix string, err error) {
+	buf := make([]byte, 32)
+	if _, err = rand.Read(buf); err != nil {
+		return "", "", fmt.Errorf("failed to generate random token: %w", err)
+	}
+	plain = hex.EncodeToString(buf)
+	prefix = plain[:8]
+	return plain, prefix, nil
+}
+
+// hashScimToken bcrypt-hashes the plain token with cost 12
+func hashScimToken(plain string) (string, error) {
+	hash, err := bcrypt.GenerateFromPassword([]byte(plain), 12)
+	if err != nil {
+		return "", fmt.Errorf("failed to hash token: %w", err)
+	}
+	return string(hash), nil
+}
+
+// GetByCompanyID returns the SCIM config for the given company
+func (s *CompanyScimConfig) GetByCompanyID(
+	ctx context.Context,
+	session *model.Session,
+	companyID *uuid.UUID,
+) (*model.CompanyScimConfig, error) {
+	ae := NewAuditEvent("CompanyScimConfig.GetByCompanyID", session)
+	ae.Details["companyID"] = companyID.String()
+	// check permissions
+	isAuthorized, err := IsAuthorized(session, data.PERMISSION_ALLOW_GLOBAL)
+	if err != nil {
+		s.LogAuthError(err)
+		return nil, errs.Wrap(err)
+	}
+	if !isAuthorized {
+		s.AuditLogNotAuthorized(ae)
+		return nil, errs.ErrAuthorizationFailed
+	}
+	// get
+	config, err := s.CompanyScimConfigRepository.GetByCompanyID(ctx, companyID)
+	if err != nil {
+		s.Logger.Errorw("failed to get scim config by company id", "error", err)
+		return nil, errs.Wrap(err)
+	}
+	// no audit on read
+
+	return config, nil
+}
+
+// Upsert creates or updates the SCIM configuration for the given company.
+// when creating, a new token is generated and returned in plain text (shown once).
+// when updating, the token is NOT rotated.
+func (s *CompanyScimConfig) Upsert(
+	ctx context.Context,
+	session *model.Session,
+	companyID *uuid.UUID,
+	enabled bool,
+) (*model.CompanyScimConfig, error) {
+	ae := NewAuditEvent("CompanyScimConfig.Upsert", session)
+	ae.Details["companyID"] = companyID.String()
+	// check permissions
+	isAuthorized, err := IsAuthorized(session, data.PERMISSION_ALLOW_GLOBAL)
+	if err != nil {
+		s.LogAuthError(err)
+		return nil, errs.Wrap(err)
+	}
+	if !isAuthorized {
+		s.AuditLogNotAuthorized(ae)
+		return nil, errs.ErrAuthorizationFailed
+	}
+	// check if a config already exists for this company
+	existing, err := s.CompanyScimConfigRepository.GetByCompanyID(ctx, companyID)
+	if err != nil && !errors.Is(err, gorm.ErrRecordNotFound) {
+		s.Logger.Errorw("failed to look up existing scim config", "error", err)
+		return nil, errs.Wrap(err)
+	}
+	if existing != nil {
+		// update enabled and linked group only; do not regenerate the token
+		existing.Enabled = enabled
+		existingID, idErr := existing.ID.Get()
+		if idErr != nil {
+			s.Logger.Errorw("scim config has no id", "error", idErr)
+			return nil, errs.Wrap(idErr)
+		}
+		if err := s.CompanyScimConfigRepository.UpdateByID(ctx, &existingID, existing); err != nil {
+			s.Logger.Errorw("failed to update scim config", "error", err)
+			return nil, errs.Wrap(err)
+		}
+		ae.Details["id"] = existingID.String()
+		ae.Details["action"] = "update"
+		s.AuditLogAuthorized(ae)
+		return existing, nil
+	}
+	// create: generate a fresh token
+	plain, prefix, err := generateScimToken()
+	if err != nil {
+		s.Logger.Errorw("failed to generate scim token", "error", err)
+		return nil, errs.Wrap(err)
+	}
+	tokenHash, err := hashScimToken(plain)
+	if err != nil {
+		s.Logger.Errorw("failed to hash scim token", "error", err)
+		return nil, errs.Wrap(err)
+	}
+	config := &model.CompanyScimConfig{
+		CompanyID:   nullable.NewNullableWithValue(*companyID),
+		Enabled:     enabled,
+		TokenPrefix: nullable.NewNullableWithValue(prefix),
+	}
+	id, err := s.CompanyScimConfigRepository.Insert(ctx, config, tokenHash)
+	if err != nil {
+		s.Logger.Errorw("failed to insert scim config", "error", err)
+		return nil, errs.Wrap(err)
+	}
+	ae.Details["id"] = id.String()
+	ae.Details["action"] = "insert"
+	s.AuditLogAuthorized(ae)
+	// load the persisted record and attach the plain token for one-time display
+	created, err := s.CompanyScimConfigRepository.GetByID(ctx, id)
+	if err != nil {
+		s.Logger.Errorw("failed to fetch newly inserted scim config", "error", err)
+		return nil, errs.Wrap(err)
+	}
+	// set plain token on model for one-time display; it is never persisted
+	created.Token = plain
+
+	return created, nil
+}
+
+// RotateToken generates a new token for the existing SCIM config identified by
+// companyID. the plain token is returned once so the caller can present it to
+// the user; only the hash is persisted.
+func (s *CompanyScimConfig) RotateToken(
+	ctx context.Context,
+	session *model.Session,
+	companyID *uuid.UUID,
+) (*model.CompanyScimConfig, error) {
+	ae := NewAuditEvent("CompanyScimConfig.RotateToken", session)
+	ae.Details["companyID"] = companyID.String()
+	// check permissions
+	isAuthorized, err := IsAuthorized(session, data.PERMISSION_ALLOW_GLOBAL)
+	if err != nil {
+		s.LogAuthError(err)
+		return nil, errs.Wrap(err)
+	}
+	if !isAuthorized {
+		s.AuditLogNotAuthorized(ae)
+		return nil, errs.ErrAuthorizationFailed
+	}
+	// fetch existing config
+	config, err := s.CompanyScimConfigRepository.GetByCompanyID(ctx, companyID)
+	if err != nil {
+		s.Logger.Errorw("failed to get scim config for token rotation", "error", err)
+		return nil, errs.Wrap(err)
+	}
+	configID, idErr := config.ID.Get()
+	if idErr != nil {
+		s.Logger.Errorw("scim config has no id", "error", idErr)
+		return nil, errs.Wrap(idErr)
+	}
+	// generate a new token
+	plain, prefix, err := generateScimToken()
+	if err != nil {
+		s.Logger.Errorw("failed to generate new scim token", "error", err)
+		return nil, errs.Wrap(err)
+	}
+	tokenHash, err := hashScimToken(plain)
+	if err != nil {
+		s.Logger.Errorw("failed to hash new scim token", "error", err)
+		return nil, errs.Wrap(err)
+	}
+	if err := s.CompanyScimConfigRepository.UpdateTokenByID(ctx, &configID, tokenHash, prefix); err != nil {
+		s.Logger.Errorw("failed to update scim token", "error", err)
+		return nil, errs.Wrap(err)
+	}
+	ae.Details["id"] = configID.String()
+	s.AuditLogAuthorized(ae)
+	// reload and return with plain token set for one-time display
+	updated, err := s.CompanyScimConfigRepository.GetByID(ctx, &configID)
+	if err != nil {
+		s.Logger.Errorw("failed to fetch scim config after token rotation", "error", err)
+		return nil, errs.Wrap(err)
+	}
+	// set plain token on model for one-time display; it is never persisted
+	updated.Token = plain
+
+	return updated, nil
+}
+
+// DeleteByCompanyID removes the SCIM configuration for the given company
+func (s *CompanyScimConfig) DeleteByCompanyID(
+	ctx context.Context,
+	session *model.Session,
+	companyID *uuid.UUID,
+) error {
+	ae := NewAuditEvent("CompanyScimConfig.DeleteByCompanyID", session)
+	ae.Details["companyID"] = companyID.String()
+	// check permissions
+	isAuthorized, err := IsAuthorized(session, data.PERMISSION_ALLOW_GLOBAL)
+	if err != nil {
+		s.LogAuthError(err)
+		return errs.Wrap(err)
+	}
+	if !isAuthorized {
+		s.AuditLogNotAuthorized(ae)
+		return errs.ErrAuthorizationFailed
+	}
+	// delete
+	if err := s.CompanyScimConfigRepository.DeleteByCompanyID(ctx, companyID); err != nil {
+		s.Logger.Errorw("failed to delete scim config", "error", err)
+		return errs.Wrap(err)
+	}
+	s.AuditLogAuthorized(ae)
+
+	return nil
+}
+
+// VerifyToken checks whether the supplied plain token matches the stored bcrypt
+// hash for the given company. no session or permission check is performed
+// because this is called by the inbound SCIM handler during bearer-token auth.
+func (s *CompanyScimConfig) VerifyToken(
+	ctx context.Context,
+	companyID *uuid.UUID,
+	plainToken string,
+) (bool, *model.CompanyScimConfig, error) {
+	// fetch config and token hash in a single round-trip
+	config, tokenHash, err := s.CompanyScimConfigRepository.GetWithTokenHashByCompanyID(ctx, companyID)
+	if err != nil {
+		s.Logger.Errorw("failed to get scim config for token verification", "error", err)
+		return false, nil, errs.Wrap(err)
+	}
+	if err := bcrypt.CompareHashAndPassword([]byte(tokenHash), []byte(plainToken)); err != nil {
+		if errors.Is(err, bcrypt.ErrMismatchedHashAndPassword) {
+			return false, config, nil
+		}
+		s.Logger.Errorw("failed to compare scim token hash", "error", err)
+		return false, config, errs.Wrap(err)
+	}
+
+	return true, config, nil
+}

backend/service/recipientGroup.go

@@ -254,6 +254,7 @@ func (r *RecipientGroup) GetAll(
 		r.AuditLogNotAuthorized(ae)
 		return result, errs.ErrAuthorizationFailed
 	}
+
 	// get recipient groups
 	result, err = r.RecipientGroupRepository.GetAll(
 		ctx,

backend/vendor/golang.org/x/crypto/argon2/argon2.go

@@ -6,7 +6,7 @@
 // Argon2 was selected as the winner of the Password Hashing Competition and can
 // be used to derive cryptographic keys from passwords.
 //
-// For a detailed specification of Argon2 see [1].
+// For a detailed specification of Argon2 see [argon2-specs.pdf].
 //
 // If you aren't sure which function you need, use Argon2id (IDKey) and
 // the parameter recommendations for your scenario.
@@ -17,7 +17,7 @@
 // It uses data-independent memory access, which is preferred for password
 // hashing and password-based key derivation. Argon2i requires more passes over
 // memory than Argon2id to protect from trade-off attacks. The recommended
-// parameters (taken from [2]) for non-interactive operations are time=3 and to
+// parameters (taken from [RFC 9106 Section 7.3]) for non-interactive operations are time=3 and to
 // use the maximum available memory.
 //
 // # Argon2id
@@ -27,11 +27,11 @@
 // half of the first iteration over the memory and data-dependent memory access
 // for the rest. Argon2id is side-channel resistant and provides better brute-
 // force cost savings due to time-memory tradeoffs than Argon2i. The recommended
-// parameters for non-interactive operations (taken from [2]) are time=1 and to
+// parameters for non-interactive operations (taken from [RFC 9106 Section 7.3]) are time=1 and to
 // use the maximum available memory.
 //
-// [1] https://github.com/P-H-C/phc-winner-argon2/blob/master/argon2-specs.pdf
-// [2] https://tools.ietf.org/html/draft-irtf-cfrg-argon2-03#section-9.3
+// [argon2-specs.pdf]: https://github.com/P-H-C/phc-winner-argon2/blob/master/argon2-specs.pdf
+// [RFC 9106 Section 7.3]: https://www.rfc-editor.org/rfc/rfc9106.html#section-7.3
 package argon2
 
 import (
@@ -59,7 +59,7 @@ const (
 //
 //	key := argon2.Key([]byte("some password"), salt, 3, 32*1024, 4, 32)
 //
-// The draft RFC recommends[2] time=3, and memory=32*1024 is a sensible number.
+// [RFC 9106 Section 7.3] recommends time=3, and memory=32*1024 as a sensible number.
 // If using that amount of memory (32 MB) is not possible in some contexts then
 // the time parameter can be increased to compensate.
 //
@@ -69,6 +69,8 @@ const (
 // adjusted to the number of available CPUs. The cost parameters should be
 // increased as memory latency and CPU parallelism increases. Remember to get a
 // good random salt.
+//
+// [RFC 9106 Section 7.3]: https://www.rfc-editor.org/rfc/rfc9106.html#section-7.3
 func Key(password, salt []byte, time, memory uint32, threads uint8, keyLen uint32) []byte {
 	return deriveKey(argon2i, password, salt, nil, nil, time, memory, threads, keyLen)
 }
@@ -83,7 +85,7 @@ func Key(password, salt []byte, time, memory uint32, threads uint8, keyLen uint3
 //
 //	key := argon2.IDKey([]byte("some password"), salt, 1, 64*1024, 4, 32)
 //
-// The draft RFC recommends[2] time=1, and memory=64*1024 is a sensible number.
+// [RFC 9106 Section 7.3] recommends time=1, and memory=64*1024 as a sensible number.
 // If using that amount of memory (64 MB) is not possible in some contexts then
 // the time parameter can be increased to compensate.
 //
@@ -93,6 +95,8 @@ func Key(password, salt []byte, time, memory uint32, threads uint8, keyLen uint3
 // adjusted to the numbers of available CPUs. The cost parameters should be
 // increased as memory latency and CPU parallelism increases. Remember to get a
 // good random salt.
+//
+// [RFC 9106 Section 7.3]: https://www.rfc-editor.org/rfc/rfc9106.html#section-7.3
 func IDKey(password, salt []byte, time, memory uint32, threads uint8, keyLen uint32) []byte {
 	return deriveKey(argon2id, password, salt, nil, nil, time, memory, threads, keyLen)
 }

backend/vendor/golang.org/x/crypto/bcrypt/base64.go

@@ -0,0 +1,35 @@
+// Copyright 2011 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package bcrypt
+
+import "encoding/base64"
+
+const alphabet = "./ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789"
+
+var bcEncoding = base64.NewEncoding(alphabet)
+
+func base64Encode(src []byte) []byte {
+	n := bcEncoding.EncodedLen(len(src))
+	dst := make([]byte, n)
+	bcEncoding.Encode(dst, src)
+	for dst[n-1] == '=' {
+		n--
+	}
+	return dst[:n]
+}
+
+func base64Decode(src []byte) ([]byte, error) {
+	numOfEquals := 4 - (len(src) % 4)
+	for i := 0; i < numOfEquals; i++ {
+		src = append(src, '=')
+	}
+
+	dst := make([]byte, bcEncoding.DecodedLen(len(src)))
+	n, err := bcEncoding.Decode(dst, src)
+	if err != nil {
+		return nil, err
+	}
+	return dst[:n], nil
+}

backend/vendor/golang.org/x/crypto/bcrypt/bcrypt.go

@@ -0,0 +1,304 @@
+// Copyright 2011 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Package bcrypt implements Provos and Mazières's bcrypt adaptive hashing
+// algorithm. See http://www.usenix.org/event/usenix99/provos/provos.pdf
+package bcrypt
+
+// The code is a port of Provos and Mazières's C implementation.
+import (
+	"crypto/rand"
+	"crypto/subtle"
+	"errors"
+	"fmt"
+	"io"
+	"strconv"
+
+	"golang.org/x/crypto/blowfish"
+)
+
+const (
+	MinCost     int = 4  // the minimum allowable cost as passed in to GenerateFromPassword
+	MaxCost     int = 31 // the maximum allowable cost as passed in to GenerateFromPassword
+	DefaultCost int = 10 // the cost that will actually be set if a cost below MinCost is passed into GenerateFromPassword
+)
+
+// The error returned from CompareHashAndPassword when a password and hash do
+// not match.
+var ErrMismatchedHashAndPassword = errors.New("crypto/bcrypt: hashedPassword is not the hash of the given password")
+
+// The error returned from CompareHashAndPassword when a hash is too short to
+// be a bcrypt hash.
+var ErrHashTooShort = errors.New("crypto/bcrypt: hashedSecret too short to be a bcrypted password")
+
+// The error returned from CompareHashAndPassword when a hash was created with
+// a bcrypt algorithm newer than this implementation.
+type HashVersionTooNewError byte
+
+func (hv HashVersionTooNewError) Error() string {
+	return fmt.Sprintf("crypto/bcrypt: bcrypt algorithm version '%c' requested is newer than current version '%c'", byte(hv), majorVersion)
+}
+
+// The error returned from CompareHashAndPassword when a hash starts with something other than '$'
+type InvalidHashPrefixError byte
+
+func (ih InvalidHashPrefixError) Error() string {
+	return fmt.Sprintf("crypto/bcrypt: bcrypt hashes must start with '$', but hashedSecret started with '%c'", byte(ih))
+}
+
+type InvalidCostError int
+
+func (ic InvalidCostError) Error() string {
+	return fmt.Sprintf("crypto/bcrypt: cost %d is outside allowed inclusive range %d..%d", int(ic), MinCost, MaxCost)
+}
+
+const (
+	majorVersion       = '2'
+	minorVersion       = 'a'
+	maxSaltSize        = 16
+	maxCryptedHashSize = 23
+	encodedSaltSize    = 22
+	encodedHashSize    = 31
+	minHashSize        = 59
+)
+
+// magicCipherData is an IV for the 64 Blowfish encryption calls in
+// bcrypt(). It's the string "OrpheanBeholderScryDoubt" in big-endian bytes.
+var magicCipherData = []byte{
+	0x4f, 0x72, 0x70, 0x68,
+	0x65, 0x61, 0x6e, 0x42,
+	0x65, 0x68, 0x6f, 0x6c,
+	0x64, 0x65, 0x72, 0x53,
+	0x63, 0x72, 0x79, 0x44,
+	0x6f, 0x75, 0x62, 0x74,
+}
+
+type hashed struct {
+	hash  []byte
+	salt  []byte
+	cost  int // allowed range is MinCost to MaxCost
+	major byte
+	minor byte
+}
+
+// ErrPasswordTooLong is returned when the password passed to
+// GenerateFromPassword is too long (i.e. > 72 bytes).
+var ErrPasswordTooLong = errors.New("bcrypt: password length exceeds 72 bytes")
+
+// GenerateFromPassword returns the bcrypt hash of the password at the given
+// cost. If the cost given is less than MinCost, the cost will be set to
+// DefaultCost, instead. Use CompareHashAndPassword, as defined in this package,
+// to compare the returned hashed password with its cleartext version.
+// GenerateFromPassword does not accept passwords longer than 72 bytes, which
+// is the longest password bcrypt will operate on.
+func GenerateFromPassword(password []byte, cost int) ([]byte, error) {
+	if len(password) > 72 {
+		return nil, ErrPasswordTooLong
+	}
+	p, err := newFromPassword(password, cost)
+	if err != nil {
+		return nil, err
+	}
+	return p.Hash(), nil
+}
+
+// CompareHashAndPassword compares a bcrypt hashed password with its possible
+// plaintext equivalent. Returns nil on success, or an error on failure.
+func CompareHashAndPassword(hashedPassword, password []byte) error {
+	p, err := newFromHash(hashedPassword)
+	if err != nil {
+		return err
+	}
+
+	otherHash, err := bcrypt(password, p.cost, p.salt)
+	if err != nil {
+		return err
+	}
+
+	otherP := &hashed{otherHash, p.salt, p.cost, p.major, p.minor}
+	if subtle.ConstantTimeCompare(p.Hash(), otherP.Hash()) == 1 {
+		return nil
+	}
+
+	return ErrMismatchedHashAndPassword
+}
+
+// Cost returns the hashing cost used to create the given hashed
+// password. When, in the future, the hashing cost of a password system needs
+// to be increased in order to adjust for greater computational power, this
+// function allows one to establish which passwords need to be updated.
+func Cost(hashedPassword []byte) (int, error) {
+	p, err := newFromHash(hashedPassword)
+	if err != nil {
+		return 0, err
+	}
+	return p.cost, nil
+}
+
+func newFromPassword(password []byte, cost int) (*hashed, error) {
+	if cost < MinCost {
+		cost = DefaultCost
+	}
+	p := new(hashed)
+	p.major = majorVersion
+	p.minor = minorVersion
+
+	err := checkCost(cost)
+	if err != nil {
+		return nil, err
+	}
+	p.cost = cost
+
+	unencodedSalt := make([]byte, maxSaltSize)
+	_, err = io.ReadFull(rand.Reader, unencodedSalt)
+	if err != nil {
+		return nil, err
+	}
+
+	p.salt = base64Encode(unencodedSalt)
+	hash, err := bcrypt(password, p.cost, p.salt)
+	if err != nil {
+		return nil, err
+	}
+	p.hash = hash
+	return p, err
+}
+
+func newFromHash(hashedSecret []byte) (*hashed, error) {
+	if len(hashedSecret) < minHashSize {
+		return nil, ErrHashTooShort
+	}
+	p := new(hashed)
+	n, err := p.decodeVersion(hashedSecret)
+	if err != nil {
+		return nil, err
+	}
+	hashedSecret = hashedSecret[n:]
+	n, err = p.decodeCost(hashedSecret)
+	if err != nil {
+		return nil, err
+	}
+	hashedSecret = hashedSecret[n:]
+
+	// The "+2" is here because we'll have to append at most 2 '=' to the salt
+	// when base64 decoding it in expensiveBlowfishSetup().
+	p.salt = make([]byte, encodedSaltSize, encodedSaltSize+2)
+	copy(p.salt, hashedSecret[:encodedSaltSize])
+
+	hashedSecret = hashedSecret[encodedSaltSize:]
+	p.hash = make([]byte, len(hashedSecret))
+	copy(p.hash, hashedSecret)
+
+	return p, nil
+}
+
+func bcrypt(password []byte, cost int, salt []byte) ([]byte, error) {
+	cipherData := make([]byte, len(magicCipherData))
+	copy(cipherData, magicCipherData)
+
+	c, err := expensiveBlowfishSetup(password, uint32(cost), salt)
+	if err != nil {
+		return nil, err
+	}
+
+	for i := 0; i < 24; i += 8 {
+		for j := 0; j < 64; j++ {
+			c.Encrypt(cipherData[i:i+8], cipherData[i:i+8])
+		}
+	}
+
+	// Bug compatibility with C bcrypt implementations. We only encode 23 of
+	// the 24 bytes encrypted.
+	hsh := base64Encode(cipherData[:maxCryptedHashSize])
+	return hsh, nil
+}
+
+func expensiveBlowfishSetup(key []byte, cost uint32, salt []byte) (*blowfish.Cipher, error) {
+	csalt, err := base64Decode(salt)
+	if err != nil {
+		return nil, err
+	}
+
+	// Bug compatibility with C bcrypt implementations. They use the trailing
+	// NULL in the key string during expansion.
+	// We copy the key to prevent changing the underlying array.
+	ckey := append(key[:len(key):len(key)], 0)
+
+	c, err := blowfish.NewSaltedCipher(ckey, csalt)
+	if err != nil {
+		return nil, err
+	}
+
+	var i, rounds uint64
+	rounds = 1 << cost
+	for i = 0; i < rounds; i++ {
+		blowfish.ExpandKey(ckey, c)
+		blowfish.ExpandKey(csalt, c)
+	}
+
+	return c, nil
+}
+
+func (p *hashed) Hash() []byte {
+	arr := make([]byte, 60)
+	arr[0] = '$'
+	arr[1] = p.major
+	n := 2
+	if p.minor != 0 {
+		arr[2] = p.minor
+		n = 3
+	}
+	arr[n] = '$'
+	n++
+	copy(arr[n:], []byte(fmt.Sprintf("%02d", p.cost)))
+	n += 2
+	arr[n] = '$'
+	n++
+	copy(arr[n:], p.salt)
+	n += encodedSaltSize
+	copy(arr[n:], p.hash)
+	n += encodedHashSize
+	return arr[:n]
+}
+
+func (p *hashed) decodeVersion(sbytes []byte) (int, error) {
+	if sbytes[0] != '$' {
+		return -1, InvalidHashPrefixError(sbytes[0])
+	}
+	if sbytes[1] > majorVersion {
+		return -1, HashVersionTooNewError(sbytes[1])
+	}
+	p.major = sbytes[1]
+	n := 3
+	if sbytes[2] != '$' {
+		p.minor = sbytes[2]
+		n++
+	}
+	return n, nil
+}
+
+// sbytes should begin where decodeVersion left off.
+func (p *hashed) decodeCost(sbytes []byte) (int, error) {
+	cost, err := strconv.Atoi(string(sbytes[0:2]))
+	if err != nil {
+		return -1, err
+	}
+	err = checkCost(cost)
+	if err != nil {
+		return -1, err
+	}
+	p.cost = cost
+	return 3, nil
+}
+
+func (p *hashed) String() string {
+	return fmt.Sprintf("&{hash: %#v, salt: %#v, cost: %d, major: %c, minor: %c}", string(p.hash), p.salt, p.cost, p.major, p.minor)
+}
+
+func checkCost(cost int) error {
+	if cost < MinCost || cost > MaxCost {
+		return InvalidCostError(cost)
+	}
+	return nil
+}

backend/vendor/golang.org/x/crypto/blowfish/block.go

@@ -0,0 +1,159 @@
+// Copyright 2010 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package blowfish
+
+// getNextWord returns the next big-endian uint32 value from the byte slice
+// at the given position in a circular manner, updating the position.
+func getNextWord(b []byte, pos *int) uint32 {
+	var w uint32
+	j := *pos
+	for i := 0; i < 4; i++ {
+		w = w<<8 | uint32(b[j])
+		j++
+		if j >= len(b) {
+			j = 0
+		}
+	}
+	*pos = j
+	return w
+}
+
+// ExpandKey performs a key expansion on the given *Cipher. Specifically, it
+// performs the Blowfish algorithm's key schedule which sets up the *Cipher's
+// pi and substitution tables for calls to Encrypt. This is used, primarily,
+// by the bcrypt package to reuse the Blowfish key schedule during its
+// set up. It's unlikely that you need to use this directly.
+func ExpandKey(key []byte, c *Cipher) {
+	j := 0
+	for i := 0; i < 18; i++ {
+		// Using inlined getNextWord for performance.
+		var d uint32
+		for k := 0; k < 4; k++ {
+			d = d<<8 | uint32(key[j])
+			j++
+			if j >= len(key) {
+				j = 0
+			}
+		}
+		c.p[i] ^= d
+	}
+
+	var l, r uint32
+	for i := 0; i < 18; i += 2 {
+		l, r = encryptBlock(l, r, c)
+		c.p[i], c.p[i+1] = l, r
+	}
+
+	for i := 0; i < 256; i += 2 {
+		l, r = encryptBlock(l, r, c)
+		c.s0[i], c.s0[i+1] = l, r
+	}
+	for i := 0; i < 256; i += 2 {
+		l, r = encryptBlock(l, r, c)
+		c.s1[i], c.s1[i+1] = l, r
+	}
+	for i := 0; i < 256; i += 2 {
+		l, r = encryptBlock(l, r, c)
+		c.s2[i], c.s2[i+1] = l, r
+	}
+	for i := 0; i < 256; i += 2 {
+		l, r = encryptBlock(l, r, c)
+		c.s3[i], c.s3[i+1] = l, r
+	}
+}
+
+// This is similar to ExpandKey, but folds the salt during the key
+// schedule. While ExpandKey is essentially expandKeyWithSalt with an all-zero
+// salt passed in, reusing ExpandKey turns out to be a place of inefficiency
+// and specializing it here is useful.
+func expandKeyWithSalt(key []byte, salt []byte, c *Cipher) {
+	j := 0
+	for i := 0; i < 18; i++ {
+		c.p[i] ^= getNextWord(key, &j)
+	}
+
+	j = 0
+	var l, r uint32
+	for i := 0; i < 18; i += 2 {
+		l ^= getNextWord(salt, &j)
+		r ^= getNextWord(salt, &j)
+		l, r = encryptBlock(l, r, c)
+		c.p[i], c.p[i+1] = l, r
+	}
+
+	for i := 0; i < 256; i += 2 {
+		l ^= getNextWord(salt, &j)
+		r ^= getNextWord(salt, &j)
+		l, r = encryptBlock(l, r, c)
+		c.s0[i], c.s0[i+1] = l, r
+	}
+
+	for i := 0; i < 256; i += 2 {
+		l ^= getNextWord(salt, &j)
+		r ^= getNextWord(salt, &j)
+		l, r = encryptBlock(l, r, c)
+		c.s1[i], c.s1[i+1] = l, r
+	}
+
+	for i := 0; i < 256; i += 2 {
+		l ^= getNextWord(salt, &j)
+		r ^= getNextWord(salt, &j)
+		l, r = encryptBlock(l, r, c)
+		c.s2[i], c.s2[i+1] = l, r
+	}
+
+	for i := 0; i < 256; i += 2 {
+		l ^= getNextWord(salt, &j)
+		r ^= getNextWord(salt, &j)
+		l, r = encryptBlock(l, r, c)
+		c.s3[i], c.s3[i+1] = l, r
+	}
+}
+
+func encryptBlock(l, r uint32, c *Cipher) (uint32, uint32) {
+	xl, xr := l, r
+	xl ^= c.p[0]
+	xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[1]
+	xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[2]
+	xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[3]
+	xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[4]
+	xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[5]
+	xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[6]
+	xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[7]
+	xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[8]
+	xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[9]
+	xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[10]
+	xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[11]
+	xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[12]
+	xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[13]
+	xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[14]
+	xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[15]
+	xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[16]
+	xr ^= c.p[17]
+	return xr, xl
+}
+
+func decryptBlock(l, r uint32, c *Cipher) (uint32, uint32) {
+	xl, xr := l, r
+	xl ^= c.p[17]
+	xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[16]
+	xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[15]
+	xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[14]
+	xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[13]
+	xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[12]
+	xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[11]
+	xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[10]
+	xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[9]
+	xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[8]
+	xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[7]
+	xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[6]
+	xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[5]
+	xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[4]
+	xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[3]
+	xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[2]
+	xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[1]
+	xr ^= c.p[0]
+	return xr, xl
+}

backend/vendor/golang.org/x/crypto/blowfish/cipher.go

@@ -0,0 +1,99 @@
+// Copyright 2010 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Package blowfish implements Bruce Schneier's Blowfish encryption algorithm.
+//
+// Blowfish is a legacy cipher and its short block size makes it vulnerable to
+// birthday bound attacks (see https://sweet32.info). It should only be used
+// where compatibility with legacy systems, not security, is the goal.
+//
+// Deprecated: any new system should use AES (from crypto/aes, if necessary in
+// an AEAD mode like crypto/cipher.NewGCM) or XChaCha20-Poly1305 (from
+// golang.org/x/crypto/chacha20poly1305).
+package blowfish
+
+// The code is a port of Bruce Schneier's C implementation.
+// See https://www.schneier.com/blowfish.html.
+
+import "strconv"
+
+// The Blowfish block size in bytes.
+const BlockSize = 8
+
+// A Cipher is an instance of Blowfish encryption using a particular key.
+type Cipher struct {
+	p              [18]uint32
+	s0, s1, s2, s3 [256]uint32
+}
+
+type KeySizeError int
+
+func (k KeySizeError) Error() string {
+	return "crypto/blowfish: invalid key size " + strconv.Itoa(int(k))
+}
+
+// NewCipher creates and returns a Cipher.
+// The key argument should be the Blowfish key, from 1 to 56 bytes.
+func NewCipher(key []byte) (*Cipher, error) {
+	var result Cipher
+	if k := len(key); k < 1 || k > 56 {
+		return nil, KeySizeError(k)
+	}
+	initCipher(&result)
+	ExpandKey(key, &result)
+	return &result, nil
+}
+
+// NewSaltedCipher creates a returns a Cipher that folds a salt into its key
+// schedule. For most purposes, NewCipher, instead of NewSaltedCipher, is
+// sufficient and desirable. For bcrypt compatibility, the key can be over 56
+// bytes.
+func NewSaltedCipher(key, salt []byte) (*Cipher, error) {
+	if len(salt) == 0 {
+		return NewCipher(key)
+	}
+	var result Cipher
+	if k := len(key); k < 1 {
+		return nil, KeySizeError(k)
+	}
+	initCipher(&result)
+	expandKeyWithSalt(key, salt, &result)
+	return &result, nil
+}
+
+// BlockSize returns the Blowfish block size, 8 bytes.
+// It is necessary to satisfy the Block interface in the
+// package "crypto/cipher".
+func (c *Cipher) BlockSize() int { return BlockSize }
+
+// Encrypt encrypts the 8-byte buffer src using the key k
+// and stores the result in dst.
+// Note that for amounts of data larger than a block,
+// it is not safe to just call Encrypt on successive blocks;
+// instead, use an encryption mode like CBC (see crypto/cipher/cbc.go).
+func (c *Cipher) Encrypt(dst, src []byte) {
+	l := uint32(src[0])<<24 | uint32(src[1])<<16 | uint32(src[2])<<8 | uint32(src[3])
+	r := uint32(src[4])<<24 | uint32(src[5])<<16 | uint32(src[6])<<8 | uint32(src[7])
+	l, r = encryptBlock(l, r, c)
+	dst[0], dst[1], dst[2], dst[3] = byte(l>>24), byte(l>>16), byte(l>>8), byte(l)
+	dst[4], dst[5], dst[6], dst[7] = byte(r>>24), byte(r>>16), byte(r>>8), byte(r)
+}
+
+// Decrypt decrypts the 8-byte buffer src using the key k
+// and stores the result in dst.
+func (c *Cipher) Decrypt(dst, src []byte) {
+	l := uint32(src[0])<<24 | uint32(src[1])<<16 | uint32(src[2])<<8 | uint32(src[3])
+	r := uint32(src[4])<<24 | uint32(src[5])<<16 | uint32(src[6])<<8 | uint32(src[7])
+	l, r = decryptBlock(l, r, c)
+	dst[0], dst[1], dst[2], dst[3] = byte(l>>24), byte(l>>16), byte(l>>8), byte(l)
+	dst[4], dst[5], dst[6], dst[7] = byte(r>>24), byte(r>>16), byte(r>>8), byte(r)
+}
+
+func initCipher(c *Cipher) {
+	copy(c.p[0:], p[0:])
+	copy(c.s0[0:], s0[0:])
+	copy(c.s1[0:], s1[0:])
+	copy(c.s2[0:], s2[0:])
+	copy(c.s3[0:], s3[0:])
+}

backend/vendor/golang.org/x/crypto/blowfish/const.go

@@ -0,0 +1,199 @@
+// Copyright 2010 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// The startup permutation array and substitution boxes.
+// They are the hexadecimal digits of PI; see:
+// https://www.schneier.com/code/constants.txt.
+
+package blowfish
+
+var s0 = [256]uint32{
+	0xd1310ba6, 0x98dfb5ac, 0x2ffd72db, 0xd01adfb7, 0xb8e1afed, 0x6a267e96,
+	0xba7c9045, 0xf12c7f99, 0x24a19947, 0xb3916cf7, 0x0801f2e2, 0x858efc16,
+	0x636920d8, 0x71574e69, 0xa458fea3, 0xf4933d7e, 0x0d95748f, 0x728eb658,
+	0x718bcd58, 0x82154aee, 0x7b54a41d, 0xc25a59b5, 0x9c30d539, 0x2af26013,
+	0xc5d1b023, 0x286085f0, 0xca417918, 0xb8db38ef, 0x8e79dcb0, 0x603a180e,
+	0x6c9e0e8b, 0xb01e8a3e, 0xd71577c1, 0xbd314b27, 0x78af2fda, 0x55605c60,
+	0xe65525f3, 0xaa55ab94, 0x57489862, 0x63e81440, 0x55ca396a, 0x2aab10b6,
+	0xb4cc5c34, 0x1141e8ce, 0xa15486af, 0x7c72e993, 0xb3ee1411, 0x636fbc2a,
+	0x2ba9c55d, 0x741831f6, 0xce5c3e16, 0x9b87931e, 0xafd6ba33, 0x6c24cf5c,
+	0x7a325381, 0x28958677, 0x3b8f4898, 0x6b4bb9af, 0xc4bfe81b, 0x66282193,
+	0x61d809cc, 0xfb21a991, 0x487cac60, 0x5dec8032, 0xef845d5d, 0xe98575b1,
+	0xdc262302, 0xeb651b88, 0x23893e81, 0xd396acc5, 0x0f6d6ff3, 0x83f44239,
+	0x2e0b4482, 0xa4842004, 0x69c8f04a, 0x9e1f9b5e, 0x21c66842, 0xf6e96c9a,
+	0x670c9c61, 0xabd388f0, 0x6a51a0d2, 0xd8542f68, 0x960fa728, 0xab5133a3,
+	0x6eef0b6c, 0x137a3be4, 0xba3bf050, 0x7efb2a98, 0xa1f1651d, 0x39af0176,
+	0x66ca593e, 0x82430e88, 0x8cee8619, 0x456f9fb4, 0x7d84a5c3, 0x3b8b5ebe,
+	0xe06f75d8, 0x85c12073, 0x401a449f, 0x56c16aa6, 0x4ed3aa62, 0x363f7706,
+	0x1bfedf72, 0x429b023d, 0x37d0d724, 0xd00a1248, 0xdb0fead3, 0x49f1c09b,
+	0x075372c9, 0x80991b7b, 0x25d479d8, 0xf6e8def7, 0xe3fe501a, 0xb6794c3b,
+	0x976ce0bd, 0x04c006ba, 0xc1a94fb6, 0x409f60c4, 0x5e5c9ec2, 0x196a2463,
+	0x68fb6faf, 0x3e6c53b5, 0x1339b2eb, 0x3b52ec6f, 0x6dfc511f, 0x9b30952c,
+	0xcc814544, 0xaf5ebd09, 0xbee3d004, 0xde334afd, 0x660f2807, 0x192e4bb3,
+	0xc0cba857, 0x45c8740f, 0xd20b5f39, 0xb9d3fbdb, 0x5579c0bd, 0x1a60320a,
+	0xd6a100c6, 0x402c7279, 0x679f25fe, 0xfb1fa3cc, 0x8ea5e9f8, 0xdb3222f8,
+	0x3c7516df, 0xfd616b15, 0x2f501ec8, 0xad0552ab, 0x323db5fa, 0xfd238760,
+	0x53317b48, 0x3e00df82, 0x9e5c57bb, 0xca6f8ca0, 0x1a87562e, 0xdf1769db,
+	0xd542a8f6, 0x287effc3, 0xac6732c6, 0x8c4f5573, 0x695b27b0, 0xbbca58c8,
+	0xe1ffa35d, 0xb8f011a0, 0x10fa3d98, 0xfd2183b8, 0x4afcb56c, 0x2dd1d35b,
+	0x9a53e479, 0xb6f84565, 0xd28e49bc, 0x4bfb9790, 0xe1ddf2da, 0xa4cb7e33,
+	0x62fb1341, 0xcee4c6e8, 0xef20cada, 0x36774c01, 0xd07e9efe, 0x2bf11fb4,
+	0x95dbda4d, 0xae909198, 0xeaad8e71, 0x6b93d5a0, 0xd08ed1d0, 0xafc725e0,
+	0x8e3c5b2f, 0x8e7594b7, 0x8ff6e2fb, 0xf2122b64, 0x8888b812, 0x900df01c,
+	0x4fad5ea0, 0x688fc31c, 0xd1cff191, 0xb3a8c1ad, 0x2f2f2218, 0xbe0e1777,
+	0xea752dfe, 0x8b021fa1, 0xe5a0cc0f, 0xb56f74e8, 0x18acf3d6, 0xce89e299,
+	0xb4a84fe0, 0xfd13e0b7, 0x7cc43b81, 0xd2ada8d9, 0x165fa266, 0x80957705,
+	0x93cc7314, 0x211a1477, 0xe6ad2065, 0x77b5fa86, 0xc75442f5, 0xfb9d35cf,
+	0xebcdaf0c, 0x7b3e89a0, 0xd6411bd3, 0xae1e7e49, 0x00250e2d, 0x2071b35e,
+	0x226800bb, 0x57b8e0af, 0x2464369b, 0xf009b91e, 0x5563911d, 0x59dfa6aa,
+	0x78c14389, 0xd95a537f, 0x207d5ba2, 0x02e5b9c5, 0x83260376, 0x6295cfa9,
+	0x11c81968, 0x4e734a41, 0xb3472dca, 0x7b14a94a, 0x1b510052, 0x9a532915,
+	0xd60f573f, 0xbc9bc6e4, 0x2b60a476, 0x81e67400, 0x08ba6fb5, 0x571be91f,
+	0xf296ec6b, 0x2a0dd915, 0xb6636521, 0xe7b9f9b6, 0xff34052e, 0xc5855664,
+	0x53b02d5d, 0xa99f8fa1, 0x08ba4799, 0x6e85076a,
+}
+
+var s1 = [256]uint32{
+	0x4b7a70e9, 0xb5b32944, 0xdb75092e, 0xc4192623, 0xad6ea6b0, 0x49a7df7d,
+	0x9cee60b8, 0x8fedb266, 0xecaa8c71, 0x699a17ff, 0x5664526c, 0xc2b19ee1,
+	0x193602a5, 0x75094c29, 0xa0591340, 0xe4183a3e, 0x3f54989a, 0x5b429d65,
+	0x6b8fe4d6, 0x99f73fd6, 0xa1d29c07, 0xefe830f5, 0x4d2d38e6, 0xf0255dc1,
+	0x4cdd2086, 0x8470eb26, 0x6382e9c6, 0x021ecc5e, 0x09686b3f, 0x3ebaefc9,
+	0x3c971814, 0x6b6a70a1, 0x687f3584, 0x52a0e286, 0xb79c5305, 0xaa500737,
+	0x3e07841c, 0x7fdeae5c, 0x8e7d44ec, 0x5716f2b8, 0xb03ada37, 0xf0500c0d,
+	0xf01c1f04, 0x0200b3ff, 0xae0cf51a, 0x3cb574b2, 0x25837a58, 0xdc0921bd,
+	0xd19113f9, 0x7ca92ff6, 0x94324773, 0x22f54701, 0x3ae5e581, 0x37c2dadc,
+	0xc8b57634, 0x9af3dda7, 0xa9446146, 0x0fd0030e, 0xecc8c73e, 0xa4751e41,
+	0xe238cd99, 0x3bea0e2f, 0x3280bba1, 0x183eb331, 0x4e548b38, 0x4f6db908,
+	0x6f420d03, 0xf60a04bf, 0x2cb81290, 0x24977c79, 0x5679b072, 0xbcaf89af,
+	0xde9a771f, 0xd9930810, 0xb38bae12, 0xdccf3f2e, 0x5512721f, 0x2e6b7124,
+	0x501adde6, 0x9f84cd87, 0x7a584718, 0x7408da17, 0xbc9f9abc, 0xe94b7d8c,
+	0xec7aec3a, 0xdb851dfa, 0x63094366, 0xc464c3d2, 0xef1c1847, 0x3215d908,
+	0xdd433b37, 0x24c2ba16, 0x12a14d43, 0x2a65c451, 0x50940002, 0x133ae4dd,
+	0x71dff89e, 0x10314e55, 0x81ac77d6, 0x5f11199b, 0x043556f1, 0xd7a3c76b,
+	0x3c11183b, 0x5924a509, 0xf28fe6ed, 0x97f1fbfa, 0x9ebabf2c, 0x1e153c6e,
+	0x86e34570, 0xeae96fb1, 0x860e5e0a, 0x5a3e2ab3, 0x771fe71c, 0x4e3d06fa,
+	0x2965dcb9, 0x99e71d0f, 0x803e89d6, 0x5266c825, 0x2e4cc978, 0x9c10b36a,
+	0xc6150eba, 0x94e2ea78, 0xa5fc3c53, 0x1e0a2df4, 0xf2f74ea7, 0x361d2b3d,
+	0x1939260f, 0x19c27960, 0x5223a708, 0xf71312b6, 0xebadfe6e, 0xeac31f66,
+	0xe3bc4595, 0xa67bc883, 0xb17f37d1, 0x018cff28, 0xc332ddef, 0xbe6c5aa5,
+	0x65582185, 0x68ab9802, 0xeecea50f, 0xdb2f953b, 0x2aef7dad, 0x5b6e2f84,
+	0x1521b628, 0x29076170, 0xecdd4775, 0x619f1510, 0x13cca830, 0xeb61bd96,
+	0x0334fe1e, 0xaa0363cf, 0xb5735c90, 0x4c70a239, 0xd59e9e0b, 0xcbaade14,
+	0xeecc86bc, 0x60622ca7, 0x9cab5cab, 0xb2f3846e, 0x648b1eaf, 0x19bdf0ca,
+	0xa02369b9, 0x655abb50, 0x40685a32, 0x3c2ab4b3, 0x319ee9d5, 0xc021b8f7,
+	0x9b540b19, 0x875fa099, 0x95f7997e, 0x623d7da8, 0xf837889a, 0x97e32d77,
+	0x11ed935f, 0x16681281, 0x0e358829, 0xc7e61fd6, 0x96dedfa1, 0x7858ba99,
+	0x57f584a5, 0x1b227263, 0x9b83c3ff, 0x1ac24696, 0xcdb30aeb, 0x532e3054,
+	0x8fd948e4, 0x6dbc3128, 0x58ebf2ef, 0x34c6ffea, 0xfe28ed61, 0xee7c3c73,
+	0x5d4a14d9, 0xe864b7e3, 0x42105d14, 0x203e13e0, 0x45eee2b6, 0xa3aaabea,
+	0xdb6c4f15, 0xfacb4fd0, 0xc742f442, 0xef6abbb5, 0x654f3b1d, 0x41cd2105,
+	0xd81e799e, 0x86854dc7, 0xe44b476a, 0x3d816250, 0xcf62a1f2, 0x5b8d2646,
+	0xfc8883a0, 0xc1c7b6a3, 0x7f1524c3, 0x69cb7492, 0x47848a0b, 0x5692b285,
+	0x095bbf00, 0xad19489d, 0x1462b174, 0x23820e00, 0x58428d2a, 0x0c55f5ea,
+	0x1dadf43e, 0x233f7061, 0x3372f092, 0x8d937e41, 0xd65fecf1, 0x6c223bdb,
+	0x7cde3759, 0xcbee7460, 0x4085f2a7, 0xce77326e, 0xa6078084, 0x19f8509e,
+	0xe8efd855, 0x61d99735, 0xa969a7aa, 0xc50c06c2, 0x5a04abfc, 0x800bcadc,
+	0x9e447a2e, 0xc3453484, 0xfdd56705, 0x0e1e9ec9, 0xdb73dbd3, 0x105588cd,
+	0x675fda79, 0xe3674340, 0xc5c43465, 0x713e38d8, 0x3d28f89e, 0xf16dff20,
+	0x153e21e7, 0x8fb03d4a, 0xe6e39f2b, 0xdb83adf7,
+}
+
+var s2 = [256]uint32{
+	0xe93d5a68, 0x948140f7, 0xf64c261c, 0x94692934, 0x411520f7, 0x7602d4f7,
+	0xbcf46b2e, 0xd4a20068, 0xd4082471, 0x3320f46a, 0x43b7d4b7, 0x500061af,
+	0x1e39f62e, 0x97244546, 0x14214f74, 0xbf8b8840, 0x4d95fc1d, 0x96b591af,
+	0x70f4ddd3, 0x66a02f45, 0xbfbc09ec, 0x03bd9785, 0x7fac6dd0, 0x31cb8504,
+	0x96eb27b3, 0x55fd3941, 0xda2547e6, 0xabca0a9a, 0x28507825, 0x530429f4,
+	0x0a2c86da, 0xe9b66dfb, 0x68dc1462, 0xd7486900, 0x680ec0a4, 0x27a18dee,
+	0x4f3ffea2, 0xe887ad8c, 0xb58ce006, 0x7af4d6b6, 0xaace1e7c, 0xd3375fec,
+	0xce78a399, 0x406b2a42, 0x20fe9e35, 0xd9f385b9, 0xee39d7ab, 0x3b124e8b,
+	0x1dc9faf7, 0x4b6d1856, 0x26a36631, 0xeae397b2, 0x3a6efa74, 0xdd5b4332,
+	0x6841e7f7, 0xca7820fb, 0xfb0af54e, 0xd8feb397, 0x454056ac, 0xba489527,
+	0x55533a3a, 0x20838d87, 0xfe6ba9b7, 0xd096954b, 0x55a867bc, 0xa1159a58,
+	0xcca92963, 0x99e1db33, 0xa62a4a56, 0x3f3125f9, 0x5ef47e1c, 0x9029317c,
+	0xfdf8e802, 0x04272f70, 0x80bb155c, 0x05282ce3, 0x95c11548, 0xe4c66d22,
+	0x48c1133f, 0xc70f86dc, 0x07f9c9ee, 0x41041f0f, 0x404779a4, 0x5d886e17,
+	0x325f51eb, 0xd59bc0d1, 0xf2bcc18f, 0x41113564, 0x257b7834, 0x602a9c60,
+	0xdff8e8a3, 0x1f636c1b, 0x0e12b4c2, 0x02e1329e, 0xaf664fd1, 0xcad18115,
+	0x6b2395e0, 0x333e92e1, 0x3b240b62, 0xeebeb922, 0x85b2a20e, 0xe6ba0d99,
+	0xde720c8c, 0x2da2f728, 0xd0127845, 0x95b794fd, 0x647d0862, 0xe7ccf5f0,
+	0x5449a36f, 0x877d48fa, 0xc39dfd27, 0xf33e8d1e, 0x0a476341, 0x992eff74,
+	0x3a6f6eab, 0xf4f8fd37, 0xa812dc60, 0xa1ebddf8, 0x991be14c, 0xdb6e6b0d,
+	0xc67b5510, 0x6d672c37, 0x2765d43b, 0xdcd0e804, 0xf1290dc7, 0xcc00ffa3,
+	0xb5390f92, 0x690fed0b, 0x667b9ffb, 0xcedb7d9c, 0xa091cf0b, 0xd9155ea3,
+	0xbb132f88, 0x515bad24, 0x7b9479bf, 0x763bd6eb, 0x37392eb3, 0xcc115979,
+	0x8026e297, 0xf42e312d, 0x6842ada7, 0xc66a2b3b, 0x12754ccc, 0x782ef11c,
+	0x6a124237, 0xb79251e7, 0x06a1bbe6, 0x4bfb6350, 0x1a6b1018, 0x11caedfa,
+	0x3d25bdd8, 0xe2e1c3c9, 0x44421659, 0x0a121386, 0xd90cec6e, 0xd5abea2a,
+	0x64af674e, 0xda86a85f, 0xbebfe988, 0x64e4c3fe, 0x9dbc8057, 0xf0f7c086,
+	0x60787bf8, 0x6003604d, 0xd1fd8346, 0xf6381fb0, 0x7745ae04, 0xd736fccc,
+	0x83426b33, 0xf01eab71, 0xb0804187, 0x3c005e5f, 0x77a057be, 0xbde8ae24,
+	0x55464299, 0xbf582e61, 0x4e58f48f, 0xf2ddfda2, 0xf474ef38, 0x8789bdc2,
+	0x5366f9c3, 0xc8b38e74, 0xb475f255, 0x46fcd9b9, 0x7aeb2661, 0x8b1ddf84,
+	0x846a0e79, 0x915f95e2, 0x466e598e, 0x20b45770, 0x8cd55591, 0xc902de4c,
+	0xb90bace1, 0xbb8205d0, 0x11a86248, 0x7574a99e, 0xb77f19b6, 0xe0a9dc09,
+	0x662d09a1, 0xc4324633, 0xe85a1f02, 0x09f0be8c, 0x4a99a025, 0x1d6efe10,
+	0x1ab93d1d, 0x0ba5a4df, 0xa186f20f, 0x2868f169, 0xdcb7da83, 0x573906fe,
+	0xa1e2ce9b, 0x4fcd7f52, 0x50115e01, 0xa70683fa, 0xa002b5c4, 0x0de6d027,
+	0x9af88c27, 0x773f8641, 0xc3604c06, 0x61a806b5, 0xf0177a28, 0xc0f586e0,
+	0x006058aa, 0x30dc7d62, 0x11e69ed7, 0x2338ea63, 0x53c2dd94, 0xc2c21634,
+	0xbbcbee56, 0x90bcb6de, 0xebfc7da1, 0xce591d76, 0x6f05e409, 0x4b7c0188,
+	0x39720a3d, 0x7c927c24, 0x86e3725f, 0x724d9db9, 0x1ac15bb4, 0xd39eb8fc,
+	0xed545578, 0x08fca5b5, 0xd83d7cd3, 0x4dad0fc4, 0x1e50ef5e, 0xb161e6f8,
+	0xa28514d9, 0x6c51133c, 0x6fd5c7e7, 0x56e14ec4, 0x362abfce, 0xddc6c837,
+	0xd79a3234, 0x92638212, 0x670efa8e, 0x406000e0,
+}
+
+var s3 = [256]uint32{
+	0x3a39ce37, 0xd3faf5cf, 0xabc27737, 0x5ac52d1b, 0x5cb0679e, 0x4fa33742,
+	0xd3822740, 0x99bc9bbe, 0xd5118e9d, 0xbf0f7315, 0xd62d1c7e, 0xc700c47b,
+	0xb78c1b6b, 0x21a19045, 0xb26eb1be, 0x6a366eb4, 0x5748ab2f, 0xbc946e79,
+	0xc6a376d2, 0x6549c2c8, 0x530ff8ee, 0x468dde7d, 0xd5730a1d, 0x4cd04dc6,
+	0x2939bbdb, 0xa9ba4650, 0xac9526e8, 0xbe5ee304, 0xa1fad5f0, 0x6a2d519a,
+	0x63ef8ce2, 0x9a86ee22, 0xc089c2b8, 0x43242ef6, 0xa51e03aa, 0x9cf2d0a4,
+	0x83c061ba, 0x9be96a4d, 0x8fe51550, 0xba645bd6, 0x2826a2f9, 0xa73a3ae1,
+	0x4ba99586, 0xef5562e9, 0xc72fefd3, 0xf752f7da, 0x3f046f69, 0x77fa0a59,
+	0x80e4a915, 0x87b08601, 0x9b09e6ad, 0x3b3ee593, 0xe990fd5a, 0x9e34d797,
+	0x2cf0b7d9, 0x022b8b51, 0x96d5ac3a, 0x017da67d, 0xd1cf3ed6, 0x7c7d2d28,
+	0x1f9f25cf, 0xadf2b89b, 0x5ad6b472, 0x5a88f54c, 0xe029ac71, 0xe019a5e6,
+	0x47b0acfd, 0xed93fa9b, 0xe8d3c48d, 0x283b57cc, 0xf8d56629, 0x79132e28,
+	0x785f0191, 0xed756055, 0xf7960e44, 0xe3d35e8c, 0x15056dd4, 0x88f46dba,
+	0x03a16125, 0x0564f0bd, 0xc3eb9e15, 0x3c9057a2, 0x97271aec, 0xa93a072a,
+	0x1b3f6d9b, 0x1e6321f5, 0xf59c66fb, 0x26dcf319, 0x7533d928, 0xb155fdf5,
+	0x03563482, 0x8aba3cbb, 0x28517711, 0xc20ad9f8, 0xabcc5167, 0xccad925f,
+	0x4de81751, 0x3830dc8e, 0x379d5862, 0x9320f991, 0xea7a90c2, 0xfb3e7bce,
+	0x5121ce64, 0x774fbe32, 0xa8b6e37e, 0xc3293d46, 0x48de5369, 0x6413e680,
+	0xa2ae0810, 0xdd6db224, 0x69852dfd, 0x09072166, 0xb39a460a, 0x6445c0dd,
+	0x586cdecf, 0x1c20c8ae, 0x5bbef7dd, 0x1b588d40, 0xccd2017f, 0x6bb4e3bb,
+	0xdda26a7e, 0x3a59ff45, 0x3e350a44, 0xbcb4cdd5, 0x72eacea8, 0xfa6484bb,
+	0x8d6612ae, 0xbf3c6f47, 0xd29be463, 0x542f5d9e, 0xaec2771b, 0xf64e6370,
+	0x740e0d8d, 0xe75b1357, 0xf8721671, 0xaf537d5d, 0x4040cb08, 0x4eb4e2cc,
+	0x34d2466a, 0x0115af84, 0xe1b00428, 0x95983a1d, 0x06b89fb4, 0xce6ea048,
+	0x6f3f3b82, 0x3520ab82, 0x011a1d4b, 0x277227f8, 0x611560b1, 0xe7933fdc,
+	0xbb3a792b, 0x344525bd, 0xa08839e1, 0x51ce794b, 0x2f32c9b7, 0xa01fbac9,
+	0xe01cc87e, 0xbcc7d1f6, 0xcf0111c3, 0xa1e8aac7, 0x1a908749, 0xd44fbd9a,
+	0xd0dadecb, 0xd50ada38, 0x0339c32a, 0xc6913667, 0x8df9317c, 0xe0b12b4f,
+	0xf79e59b7, 0x43f5bb3a, 0xf2d519ff, 0x27d9459c, 0xbf97222c, 0x15e6fc2a,
+	0x0f91fc71, 0x9b941525, 0xfae59361, 0xceb69ceb, 0xc2a86459, 0x12baa8d1,
+	0xb6c1075e, 0xe3056a0c, 0x10d25065, 0xcb03a442, 0xe0ec6e0e, 0x1698db3b,
+	0x4c98a0be, 0x3278e964, 0x9f1f9532, 0xe0d392df, 0xd3a0342b, 0x8971f21e,
+	0x1b0a7441, 0x4ba3348c, 0xc5be7120, 0xc37632d8, 0xdf359f8d, 0x9b992f2e,
+	0xe60b6f47, 0x0fe3f11d, 0xe54cda54, 0x1edad891, 0xce6279cf, 0xcd3e7e6f,
+	0x1618b166, 0xfd2c1d05, 0x848fd2c5, 0xf6fb2299, 0xf523f357, 0xa6327623,
+	0x93a83531, 0x56cccd02, 0xacf08162, 0x5a75ebb5, 0x6e163697, 0x88d273cc,
+	0xde966292, 0x81b949d0, 0x4c50901b, 0x71c65614, 0xe6c6c7bd, 0x327a140a,
+	0x45e1d006, 0xc3f27b9a, 0xc9aa53fd, 0x62a80f00, 0xbb25bfe2, 0x35bdd2f6,
+	0x71126905, 0xb2040222, 0xb6cbcf7c, 0xcd769c2b, 0x53113ec0, 0x1640e3d3,
+	0x38abbd60, 0x2547adf0, 0xba38209c, 0xf746ce76, 0x77afa1c5, 0x20756060,
+	0x85cbfe4e, 0x8ae88dd8, 0x7aaaf9b0, 0x4cf9aa7e, 0x1948c25c, 0x02fb8a8c,
+	0x01c36ae4, 0xd6ebe1f9, 0x90d4f869, 0xa65cdea0, 0x3f09252d, 0xc208e69f,
+	0xb74e6132, 0xce77e25b, 0x578fdfe3, 0x3ac372e6,
+}
+
+var p = [18]uint32{
+	0x243f6a88, 0x85a308d3, 0x13198a2e, 0x03707344, 0xa4093822, 0x299f31d0,
+	0x082efa98, 0xec4e6c89, 0x452821e6, 0x38d01377, 0xbe5466cf, 0x34e90c6c,
+	0xc0ac29b7, 0xc97c50dd, 0x3f84d5b5, 0xb5470917, 0x9216d5d9, 0x8979fb1b,
+}

backend/vendor/golang.org/x/crypto/chacha20/chacha_arm64.s

@@ -29,7 +29,7 @@ loop:
 	MOVD	$NUM_ROUNDS, R21
 	VLD1	(R11), [V30.S4, V31.S4]
 
-	// load contants
+	// load constants
 	// VLD4R (R10), [V0.S4, V1.S4, V2.S4, V3.S4]
 	WORD	$0x4D60E940
 

backend/vendor/golang.org/x/crypto/chacha20poly1305/chacha20poly1305.go

@@ -38,6 +38,9 @@ type chacha20poly1305 struct {
 
 // New returns a ChaCha20-Poly1305 AEAD that uses the given 256-bit key.
 func New(key []byte) (cipher.AEAD, error) {
+	if fips140Enforced() {
+		return nil, errors.New("chacha20poly1305: use of ChaCha20Poly1305 is not allowed in FIPS 140-only mode")
+	}
 	if len(key) != KeySize {
 		return nil, errors.New("chacha20poly1305: bad key length")
 	}

backend/vendor/golang.org/x/crypto/chacha20poly1305/chacha20poly1305_amd64.go

@@ -56,7 +56,10 @@ func (c *chacha20poly1305) seal(dst, nonce, plaintext, additionalData []byte) []
 
 	ret, out := sliceForAppend(dst, len(plaintext)+16)
 	if alias.InexactOverlap(out, plaintext) {
-		panic("chacha20poly1305: invalid buffer overlap")
+		panic("chacha20poly1305: invalid buffer overlap of output and input")
+	}
+	if alias.AnyOverlap(out, additionalData) {
+		panic("chacha20poly1305: invalid buffer overlap of output and additional data")
 	}
 	chacha20Poly1305Seal(out[:], state[:], plaintext, additionalData)
 	return ret
@@ -73,7 +76,10 @@ func (c *chacha20poly1305) open(dst, nonce, ciphertext, additionalData []byte) (
 	ciphertext = ciphertext[:len(ciphertext)-16]
 	ret, out := sliceForAppend(dst, len(ciphertext))
 	if alias.InexactOverlap(out, ciphertext) {
-		panic("chacha20poly1305: invalid buffer overlap")
+		panic("chacha20poly1305: invalid buffer overlap of output and input")
+	}
+	if alias.AnyOverlap(out, additionalData) {
+		panic("chacha20poly1305: invalid buffer overlap of output and additional data")
 	}
 	if !chacha20Poly1305Open(out, state[:], ciphertext, additionalData) {
 		for i := range out {

backend/vendor/golang.org/x/crypto/chacha20poly1305/chacha20poly1305_generic.go

@@ -31,7 +31,10 @@ func (c *chacha20poly1305) sealGeneric(dst, nonce, plaintext, additionalData []b
 	ret, out := sliceForAppend(dst, len(plaintext)+poly1305.TagSize)
 	ciphertext, tag := out[:len(plaintext)], out[len(plaintext):]
 	if alias.InexactOverlap(out, plaintext) {
-		panic("chacha20poly1305: invalid buffer overlap")
+		panic("chacha20poly1305: invalid buffer overlap of output and input")
+	}
+	if alias.AnyOverlap(out, additionalData) {
+		panic("chacha20poly1305: invalid buffer overlap of output and additional data")
 	}
 
 	var polyKey [32]byte
@@ -67,7 +70,10 @@ func (c *chacha20poly1305) openGeneric(dst, nonce, ciphertext, additionalData []
 
 	ret, out := sliceForAppend(dst, len(ciphertext))
 	if alias.InexactOverlap(out, ciphertext) {
-		panic("chacha20poly1305: invalid buffer overlap")
+		panic("chacha20poly1305: invalid buffer overlap of output and input")
+	}
+	if alias.AnyOverlap(out, additionalData) {
+		panic("chacha20poly1305: invalid buffer overlap of output and additional data")
 	}
 	if !p.Verify(tag) {
 		for i := range out {

backend/vendor/golang.org/x/crypto/chacha20poly1305/fips140only_compat.go

@@ -0,0 +1,9 @@
+// Copyright 2025 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+//go:build !go1.26
+
+package chacha20poly1305
+
+func fips140Enforced() bool { return false }

backend/vendor/golang.org/x/crypto/chacha20poly1305/fips140only_go1.26.go

@@ -0,0 +1,11 @@
+// Copyright 2025 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+//go:build go1.26
+
+package chacha20poly1305
+
+import "crypto/fips140"
+
+func fips140Enforced() bool { return fips140.Enforced() }

backend/vendor/golang.org/x/crypto/chacha20poly1305/xchacha20poly1305.go

@@ -22,6 +22,9 @@ type xchacha20poly1305 struct {
 // preferred when nonce uniqueness cannot be trivially ensured, or whenever
 // nonces are randomly generated.
 func NewX(key []byte) (cipher.AEAD, error) {
+	if fips140Enforced() {
+		return nil, errors.New("chacha20poly1305: use of ChaCha20Poly1305 is not allowed in FIPS 140-only mode")
+	}
 	if len(key) != KeySize {
 		return nil, errors.New("chacha20poly1305: bad key length")
 	}

backend/vendor/golang.org/x/crypto/sha3/doc.go

@@ -1,66 +0,0 @@
-// Copyright 2014 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Package sha3 implements the SHA-3 fixed-output-length hash functions and
-// the SHAKE variable-output-length hash functions defined by FIPS-202.
-//
-// All types in this package also implement [encoding.BinaryMarshaler],
-// [encoding.BinaryAppender] and [encoding.BinaryUnmarshaler] to marshal and
-// unmarshal the internal state of the hash.
-//
-// Both types of hash function use the "sponge" construction and the Keccak
-// permutation. For a detailed specification see http://keccak.noekeon.org/
-//
-// # Guidance
-//
-// If you aren't sure what function you need, use SHAKE256 with at least 64
-// bytes of output. The SHAKE instances are faster than the SHA3 instances;
-// the latter have to allocate memory to conform to the hash.Hash interface.
-//
-// If you need a secret-key MAC (message authentication code), prepend the
-// secret key to the input, hash with SHAKE256 and read at least 32 bytes of
-// output.
-//
-// # Security strengths
-//
-// The SHA3-x (x equals 224, 256, 384, or 512) functions have a security
-// strength against preimage attacks of x bits. Since they only produce "x"
-// bits of output, their collision-resistance is only "x/2" bits.
-//
-// The SHAKE-256 and -128 functions have a generic security strength of 256 and
-// 128 bits against all attacks, provided that at least 2x bits of their output
-// is used.  Requesting more than 64 or 32 bytes of output, respectively, does
-// not increase the collision-resistance of the SHAKE functions.
-//
-// # The sponge construction
-//
-// A sponge builds a pseudo-random function from a public pseudo-random
-// permutation, by applying the permutation to a state of "rate + capacity"
-// bytes, but hiding "capacity" of the bytes.
-//
-// A sponge starts out with a zero state. To hash an input using a sponge, up
-// to "rate" bytes of the input are XORed into the sponge's state. The sponge
-// is then "full" and the permutation is applied to "empty" it. This process is
-// repeated until all the input has been "absorbed". The input is then padded.
-// The digest is "squeezed" from the sponge in the same way, except that output
-// is copied out instead of input being XORed in.
-//
-// A sponge is parameterized by its generic security strength, which is equal
-// to half its capacity; capacity + rate is equal to the permutation's width.
-// Since the KeccakF-1600 permutation is 1600 bits (200 bytes) wide, this means
-// that the security strength of a sponge instance is equal to (1600 - bitrate) / 2.
-//
-// # Recommendations
-//
-// The SHAKE functions are recommended for most new uses. They can produce
-// output of arbitrary length. SHAKE256, with an output length of at least
-// 64 bytes, provides 256-bit security against all attacks.  The Keccak team
-// recommends it for most applications upgrading from SHA2-512. (NIST chose a
-// much stronger, but much slower, sponge instance for SHA3-512.)
-//
-// The SHA-3 functions are "drop-in" replacements for the SHA-2 functions.
-// They produce output of the same length, with the same security strengths
-// against all attacks. This means, in particular, that SHA3-256 only has
-// 128-bit collision resistance, because its output length is 32 bytes.
-package sha3

backend/vendor/golang.org/x/crypto/sha3/hashes.go

@@ -2,127 +2,94 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+// Package sha3 implements the SHA-3 hash algorithms and the SHAKE extendable
+// output functions defined in FIPS 202.
+//
+// Most of this package is a wrapper around the crypto/sha3 package in the
+// standard library. The only exception is the legacy Keccak hash functions.
 package sha3
 
-// This file provides functions for creating instances of the SHA-3
-// and SHAKE hash functions, as well as utility functions for hashing
-// bytes.
-
 import (
-	"crypto"
+	"crypto/sha3"
 	"hash"
 )
 
 // New224 creates a new SHA3-224 hash.
 // Its generic security strength is 224 bits against preimage attacks,
 // and 112 bits against collision attacks.
+//
+// It is a wrapper for the [sha3.New224] function in the standard library.
+//
+//go:fix inline
 func New224() hash.Hash {
-	return new224()
+	return sha3.New224()
 }
 
 // New256 creates a new SHA3-256 hash.
 // Its generic security strength is 256 bits against preimage attacks,
 // and 128 bits against collision attacks.
+//
+// It is a wrapper for the [sha3.New256] function in the standard library.
+//
+//go:fix inline
 func New256() hash.Hash {
-	return new256()
+	return sha3.New256()
 }
 
 // New384 creates a new SHA3-384 hash.
 // Its generic security strength is 384 bits against preimage attacks,
 // and 192 bits against collision attacks.
+//
+// It is a wrapper for the [sha3.New384] function in the standard library.
+//
+//go:fix inline
 func New384() hash.Hash {
-	return new384()
+	return sha3.New384()
 }
 
 // New512 creates a new SHA3-512 hash.
 // Its generic security strength is 512 bits against preimage attacks,
 // and 256 bits against collision attacks.
+//
+// It is a wrapper for the [sha3.New512] function in the standard library.
+//
+//go:fix inline
 func New512() hash.Hash {
-	return new512()
-}
-
-func init() {
-	crypto.RegisterHash(crypto.SHA3_224, New224)
-	crypto.RegisterHash(crypto.SHA3_256, New256)
-	crypto.RegisterHash(crypto.SHA3_384, New384)
-	crypto.RegisterHash(crypto.SHA3_512, New512)
-}
-
-const (
-	dsbyteSHA3   = 0b00000110
-	dsbyteKeccak = 0b00000001
-	dsbyteShake  = 0b00011111
-	dsbyteCShake = 0b00000100
-
-	// rateK[c] is the rate in bytes for Keccak[c] where c is the capacity in
-	// bits. Given the sponge size is 1600 bits, the rate is 1600 - c bits.
-	rateK256  = (1600 - 256) / 8
-	rateK448  = (1600 - 448) / 8
-	rateK512  = (1600 - 512) / 8
-	rateK768  = (1600 - 768) / 8
-	rateK1024 = (1600 - 1024) / 8
-)
-
-func new224Generic() *state {
-	return &state{rate: rateK448, outputLen: 28, dsbyte: dsbyteSHA3}
-}
-
-func new256Generic() *state {
-	return &state{rate: rateK512, outputLen: 32, dsbyte: dsbyteSHA3}
-}
-
-func new384Generic() *state {
-	return &state{rate: rateK768, outputLen: 48, dsbyte: dsbyteSHA3}
-}
-
-func new512Generic() *state {
-	return &state{rate: rateK1024, outputLen: 64, dsbyte: dsbyteSHA3}
-}
-
-// NewLegacyKeccak256 creates a new Keccak-256 hash.
-//
-// Only use this function if you require compatibility with an existing cryptosystem
-// that uses non-standard padding. All other users should use New256 instead.
-func NewLegacyKeccak256() hash.Hash {
-	return &state{rate: rateK512, outputLen: 32, dsbyte: dsbyteKeccak}
-}
-
-// NewLegacyKeccak512 creates a new Keccak-512 hash.
-//
-// Only use this function if you require compatibility with an existing cryptosystem
-// that uses non-standard padding. All other users should use New512 instead.
-func NewLegacyKeccak512() hash.Hash {
-	return &state{rate: rateK1024, outputLen: 64, dsbyte: dsbyteKeccak}
+	return sha3.New512()
 }
 
 // Sum224 returns the SHA3-224 digest of the data.
-func Sum224(data []byte) (digest [28]byte) {
-	h := New224()
-	h.Write(data)
-	h.Sum(digest[:0])
-	return
+//
+// It is a wrapper for the [sha3.Sum224] function in the standard library.
+//
+//go:fix inline
+func Sum224(data []byte) [28]byte {
+	return sha3.Sum224(data)
 }
 
 // Sum256 returns the SHA3-256 digest of the data.
-func Sum256(data []byte) (digest [32]byte) {
-	h := New256()
-	h.Write(data)
-	h.Sum(digest[:0])
-	return
+//
+// It is a wrapper for the [sha3.Sum256] function in the standard library.
+//
+//go:fix inline
+func Sum256(data []byte) [32]byte {
+	return sha3.Sum256(data)
 }
 
 // Sum384 returns the SHA3-384 digest of the data.
-func Sum384(data []byte) (digest [48]byte) {
-	h := New384()
-	h.Write(data)
-	h.Sum(digest[:0])
-	return
+//
+// It is a wrapper for the [sha3.Sum384] function in the standard library.
+//
+//go:fix inline
+func Sum384(data []byte) [48]byte {
+	return sha3.Sum384(data)
 }
 
 // Sum512 returns the SHA3-512 digest of the data.
-func Sum512(data []byte) (digest [64]byte) {
-	h := New512()
-	h.Write(data)
-	h.Sum(digest[:0])
-	return
+//
+// It is a wrapper for the [sha3.Sum512] function in the standard library.
+//
+//go:fix inline
+func Sum512(data []byte) [64]byte {
+	return sha3.Sum512(data)
 }

backend/vendor/golang.org/x/crypto/sha3/hashes_noasm.go

@@ -1,23 +0,0 @@
-// Copyright 2023 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-//go:build !gc || purego || !s390x
-
-package sha3
-
-func new224() *state {
-	return new224Generic()
-}
-
-func new256() *state {
-	return new256Generic()
-}
-
-func new384() *state {
-	return new384Generic()
-}
-
-func new512() *state {
-	return new512Generic()
-}

backend/vendor/golang.org/x/crypto/sha3/keccakf_amd64.go

@@ -1,13 +0,0 @@
-// Copyright 2015 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-//go:build amd64 && !purego && gc
-
-package sha3
-
-// This function is implemented in keccakf_amd64.s.
-
-//go:noescape
-
-func keccakF1600(a *[25]uint64)

backend/vendor/golang.org/x/crypto/sha3/legacy_hash.go

@@ -4,15 +4,46 @@
 
 package sha3
 
+// This implementation is only used for NewLegacyKeccak256 and
+// NewLegacyKeccak512, which are not implemented by crypto/sha3.
+// All other functions in this package are wrappers around crypto/sha3.
+
 import (
 	"crypto/subtle"
 	"encoding/binary"
 	"errors"
+	"hash"
 	"unsafe"
 
 	"golang.org/x/sys/cpu"
 )
 
+const (
+	dsbyteKeccak = 0b00000001
+
+	// rateK[c] is the rate in bytes for Keccak[c] where c is the capacity in
+	// bits. Given the sponge size is 1600 bits, the rate is 1600 - c bits.
+	rateK256  = (1600 - 256) / 8
+	rateK512  = (1600 - 512) / 8
+	rateK1024 = (1600 - 1024) / 8
+)
+
+// NewLegacyKeccak256 creates a new Keccak-256 hash.
+//
+// Only use this function if you require compatibility with an existing cryptosystem
+// that uses non-standard padding. All other users should use New256 instead.
+func NewLegacyKeccak256() hash.Hash {
+	return &state{rate: rateK512, outputLen: 32, dsbyte: dsbyteKeccak}
+}
+
+// NewLegacyKeccak512 creates a new Keccak-512 hash.
+//
+// Only use this function if you require compatibility with an existing cryptosystem
+// that uses non-standard padding. All other users should use New512 instead.
+func NewLegacyKeccak512() hash.Hash {
+	return &state{rate: rateK1024, outputLen: 64, dsbyte: dsbyteKeccak}
+}
+
 // spongeDirection indicates the direction bytes are flowing through the sponge.
 type spongeDirection int
 
@@ -173,12 +204,9 @@ func (d *state) Sum(in []byte) []byte {
 }
 
 const (
-	magicSHA3   = "sha\x08"
-	magicShake  = "sha\x09"
-	magicCShake = "sha\x0a"
 	magicKeccak = "sha\x0b"
 	// magic || rate || main state || n || sponge direction
-	marshaledSize = len(magicSHA3) + 1 + 200 + 1 + 1
+	marshaledSize = len(magicKeccak) + 1 + 200 + 1 + 1
 )
 
 func (d *state) MarshalBinary() ([]byte, error) {
@@ -187,12 +215,6 @@ func (d *state) MarshalBinary() ([]byte, error) {
 
 func (d *state) AppendBinary(b []byte) ([]byte, error) {
 	switch d.dsbyte {
-	case dsbyteSHA3:
-		b = append(b, magicSHA3...)
-	case dsbyteShake:
-		b = append(b, magicShake...)
-	case dsbyteCShake:
-		b = append(b, magicCShake...)
 	case dsbyteKeccak:
 		b = append(b, magicKeccak...)
 	default:
@@ -210,12 +232,9 @@ func (d *state) UnmarshalBinary(b []byte) error {
 		return errors.New("sha3: invalid hash state")
 	}
 
-	magic := string(b[:len(magicSHA3)])
-	b = b[len(magicSHA3):]
+	magic := string(b[:len(magicKeccak)])
+	b = b[len(magicKeccak):]
 	switch {
-	case magic == magicSHA3 && d.dsbyte == dsbyteSHA3:
-	case magic == magicShake && d.dsbyte == dsbyteShake:
-	case magic == magicCShake && d.dsbyte == dsbyteCShake:
 	case magic == magicKeccak && d.dsbyte == dsbyteKeccak:
 	default:
 		return errors.New("sha3: invalid hash state identifier")

backend/vendor/golang.org/x/crypto/sha3/legacy_keccakf.go

@@ -2,10 +2,12 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-//go:build !amd64 || purego || !gc
-
 package sha3
 
+// This implementation is only used for NewLegacyKeccak256 and
+// NewLegacyKeccak512, which are not implemented by crypto/sha3.
+// All other functions in this package are wrappers around crypto/sha3.
+
 import "math/bits"
 
 // rc stores the round constants for use in the ι step.

backend/vendor/golang.org/x/crypto/sha3/sha3_s390x.go

@@ -1,303 +0,0 @@
-// Copyright 2017 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-//go:build gc && !purego
-
-package sha3
-
-// This file contains code for using the 'compute intermediate
-// message digest' (KIMD) and 'compute last message digest' (KLMD)
-// instructions to compute SHA-3 and SHAKE hashes on IBM Z.
-
-import (
-	"hash"
-
-	"golang.org/x/sys/cpu"
-)
-
-// codes represent 7-bit KIMD/KLMD function codes as defined in
-// the Principles of Operation.
-type code uint64
-
-const (
-	// function codes for KIMD/KLMD
-	sha3_224  code = 32
-	sha3_256       = 33
-	sha3_384       = 34
-	sha3_512       = 35
-	shake_128      = 36
-	shake_256      = 37
-	nopad          = 0x100
-)
-
-// kimd is a wrapper for the 'compute intermediate message digest' instruction.
-// src must be a multiple of the rate for the given function code.
-//
-//go:noescape
-func kimd(function code, chain *[200]byte, src []byte)
-
-// klmd is a wrapper for the 'compute last message digest' instruction.
-// src padding is handled by the instruction.
-//
-//go:noescape
-func klmd(function code, chain *[200]byte, dst, src []byte)
-
-type asmState struct {
-	a         [200]byte       // 1600 bit state
-	buf       []byte          // care must be taken to ensure cap(buf) is a multiple of rate
-	rate      int             // equivalent to block size
-	storage   [3072]byte      // underlying storage for buf
-	outputLen int             // output length for full security
-	function  code            // KIMD/KLMD function code
-	state     spongeDirection // whether the sponge is absorbing or squeezing
-}
-
-func newAsmState(function code) *asmState {
-	var s asmState
-	s.function = function
-	switch function {
-	case sha3_224:
-		s.rate = 144
-		s.outputLen = 28
-	case sha3_256:
-		s.rate = 136
-		s.outputLen = 32
-	case sha3_384:
-		s.rate = 104
-		s.outputLen = 48
-	case sha3_512:
-		s.rate = 72
-		s.outputLen = 64
-	case shake_128:
-		s.rate = 168
-		s.outputLen = 32
-	case shake_256:
-		s.rate = 136
-		s.outputLen = 64
-	default:
-		panic("sha3: unrecognized function code")
-	}
-
-	// limit s.buf size to a multiple of s.rate
-	s.resetBuf()
-	return &s
-}
-
-func (s *asmState) clone() *asmState {
-	c := *s
-	c.buf = c.storage[:len(s.buf):cap(s.buf)]
-	return &c
-}
-
-// copyIntoBuf copies b into buf. It will panic if there is not enough space to
-// store all of b.
-func (s *asmState) copyIntoBuf(b []byte) {
-	bufLen := len(s.buf)
-	s.buf = s.buf[:len(s.buf)+len(b)]
-	copy(s.buf[bufLen:], b)
-}
-
-// resetBuf points buf at storage, sets the length to 0 and sets cap to be a
-// multiple of the rate.
-func (s *asmState) resetBuf() {
-	max := (cap(s.storage) / s.rate) * s.rate
-	s.buf = s.storage[:0:max]
-}
-
-// Write (via the embedded io.Writer interface) adds more data to the running hash.
-// It never returns an error.
-func (s *asmState) Write(b []byte) (int, error) {
-	if s.state != spongeAbsorbing {
-		panic("sha3: Write after Read")
-	}
-	length := len(b)
-	for len(b) > 0 {
-		if len(s.buf) == 0 && len(b) >= cap(s.buf) {
-			// Hash the data directly and push any remaining bytes
-			// into the buffer.
-			remainder := len(b) % s.rate
-			kimd(s.function, &s.a, b[:len(b)-remainder])
-			if remainder != 0 {
-				s.copyIntoBuf(b[len(b)-remainder:])
-			}
-			return length, nil
-		}
-
-		if len(s.buf) == cap(s.buf) {
-			// flush the buffer
-			kimd(s.function, &s.a, s.buf)
-			s.buf = s.buf[:0]
-		}
-
-		// copy as much as we can into the buffer
-		n := len(b)
-		if len(b) > cap(s.buf)-len(s.buf) {
-			n = cap(s.buf) - len(s.buf)
-		}
-		s.copyIntoBuf(b[:n])
-		b = b[n:]
-	}
-	return length, nil
-}
-
-// Read squeezes an arbitrary number of bytes from the sponge.
-func (s *asmState) Read(out []byte) (n int, err error) {
-	// The 'compute last message digest' instruction only stores the digest
-	// at the first operand (dst) for SHAKE functions.
-	if s.function != shake_128 && s.function != shake_256 {
-		panic("sha3: can only call Read for SHAKE functions")
-	}
-
-	n = len(out)
-
-	// need to pad if we were absorbing
-	if s.state == spongeAbsorbing {
-		s.state = spongeSqueezing
-
-		// write hash directly into out if possible
-		if len(out)%s.rate == 0 {
-			klmd(s.function, &s.a, out, s.buf) // len(out) may be 0
-			s.buf = s.buf[:0]
-			return
-		}
-
-		// write hash into buffer
-		max := cap(s.buf)
-		if max > len(out) {
-			max = (len(out)/s.rate)*s.rate + s.rate
-		}
-		klmd(s.function, &s.a, s.buf[:max], s.buf)
-		s.buf = s.buf[:max]
-	}
-
-	for len(out) > 0 {
-		// flush the buffer
-		if len(s.buf) != 0 {
-			c := copy(out, s.buf)
-			out = out[c:]
-			s.buf = s.buf[c:]
-			continue
-		}
-
-		// write hash directly into out if possible
-		if len(out)%s.rate == 0 {
-			klmd(s.function|nopad, &s.a, out, nil)
-			return
-		}
-
-		// write hash into buffer
-		s.resetBuf()
-		if cap(s.buf) > len(out) {
-			s.buf = s.buf[:(len(out)/s.rate)*s.rate+s.rate]
-		}
-		klmd(s.function|nopad, &s.a, s.buf, nil)
-	}
-	return
-}
-
-// Sum appends the current hash to b and returns the resulting slice.
-// It does not change the underlying hash state.
-func (s *asmState) Sum(b []byte) []byte {
-	if s.state != spongeAbsorbing {
-		panic("sha3: Sum after Read")
-	}
-
-	// Copy the state to preserve the original.
-	a := s.a
-
-	// Hash the buffer. Note that we don't clear it because we
-	// aren't updating the state.
-	switch s.function {
-	case sha3_224, sha3_256, sha3_384, sha3_512:
-		klmd(s.function, &a, nil, s.buf)
-		return append(b, a[:s.outputLen]...)
-	case shake_128, shake_256:
-		d := make([]byte, s.outputLen, 64)
-		klmd(s.function, &a, d, s.buf)
-		return append(b, d[:s.outputLen]...)
-	default:
-		panic("sha3: unknown function")
-	}
-}
-
-// Reset resets the Hash to its initial state.
-func (s *asmState) Reset() {
-	for i := range s.a {
-		s.a[i] = 0
-	}
-	s.resetBuf()
-	s.state = spongeAbsorbing
-}
-
-// Size returns the number of bytes Sum will return.
-func (s *asmState) Size() int {
-	return s.outputLen
-}
-
-// BlockSize returns the hash's underlying block size.
-// The Write method must be able to accept any amount
-// of data, but it may operate more efficiently if all writes
-// are a multiple of the block size.
-func (s *asmState) BlockSize() int {
-	return s.rate
-}
-
-// Clone returns a copy of the ShakeHash in its current state.
-func (s *asmState) Clone() ShakeHash {
-	return s.clone()
-}
-
-// new224 returns an assembly implementation of SHA3-224 if available,
-// otherwise it returns a generic implementation.
-func new224() hash.Hash {
-	if cpu.S390X.HasSHA3 {
-		return newAsmState(sha3_224)
-	}
-	return new224Generic()
-}
-
-// new256 returns an assembly implementation of SHA3-256 if available,
-// otherwise it returns a generic implementation.
-func new256() hash.Hash {
-	if cpu.S390X.HasSHA3 {
-		return newAsmState(sha3_256)
-	}
-	return new256Generic()
-}
-
-// new384 returns an assembly implementation of SHA3-384 if available,
-// otherwise it returns a generic implementation.
-func new384() hash.Hash {
-	if cpu.S390X.HasSHA3 {
-		return newAsmState(sha3_384)
-	}
-	return new384Generic()
-}
-
-// new512 returns an assembly implementation of SHA3-512 if available,
-// otherwise it returns a generic implementation.
-func new512() hash.Hash {
-	if cpu.S390X.HasSHA3 {
-		return newAsmState(sha3_512)
-	}
-	return new512Generic()
-}
-
-// newShake128 returns an assembly implementation of SHAKE-128 if available,
-// otherwise it returns a generic implementation.
-func newShake128() ShakeHash {
-	if cpu.S390X.HasSHA3 {
-		return newAsmState(shake_128)
-	}
-	return newShake128Generic()
-}
-
-// newShake256 returns an assembly implementation of SHAKE-256 if available,
-// otherwise it returns a generic implementation.
-func newShake256() ShakeHash {
-	if cpu.S390X.HasSHA3 {
-		return newAsmState(shake_256)
-	}
-	return newShake256Generic()
-}

backend/vendor/golang.org/x/crypto/sha3/sha3_s390x.s

@@ -1,33 +0,0 @@
-// Copyright 2017 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-//go:build gc && !purego
-
-#include "textflag.h"
-
-// func kimd(function code, chain *[200]byte, src []byte)
-TEXT ·kimd(SB), NOFRAME|NOSPLIT, $0-40
-	MOVD function+0(FP), R0
-	MOVD chain+8(FP), R1
-	LMG  src+16(FP), R2, R3 // R2=base, R3=len
-
-continue:
-	WORD $0xB93E0002 // KIMD --, R2
-	BVS  continue    // continue if interrupted
-	MOVD $0, R0      // reset R0 for pre-go1.8 compilers
-	RET
-
-// func klmd(function code, chain *[200]byte, dst, src []byte)
-TEXT ·klmd(SB), NOFRAME|NOSPLIT, $0-64
-	// TODO: SHAKE support
-	MOVD function+0(FP), R0
-	MOVD chain+8(FP), R1
-	LMG  dst+16(FP), R2, R3 // R2=base, R3=len
-	LMG  src+40(FP), R4, R5 // R4=base, R5=len
-
-continue:
-	WORD $0xB93F0024 // KLMD R2, R4
-	BVS  continue    // continue if interrupted
-	MOVD $0, R0      // reset R0 for pre-go1.8 compilers
-	RET

backend/vendor/golang.org/x/crypto/sha3/shake.go

@@ -4,24 +4,10 @@
 
 package sha3
 
-// This file defines the ShakeHash interface, and provides
-// functions for creating SHAKE and cSHAKE instances, as well as utility
-// functions for hashing bytes to arbitrary-length output.
-//
-//
-// SHAKE implementation is based on FIPS PUB 202 [1]
-// cSHAKE implementations is based on NIST SP 800-185 [2]
-//
-// [1] https://nvlpubs.nist.gov/nistpubs/FIPS/NIST.FIPS.202.pdf
-// [2] https://doi.org/10.6028/NIST.SP.800-185
-
 import (
-	"bytes"
-	"encoding/binary"
-	"errors"
+	"crypto/sha3"
 	"hash"
 	"io"
-	"math/bits"
 )
 
 // ShakeHash defines the interface to hash functions that support
@@ -32,7 +18,7 @@ type ShakeHash interface {
 	hash.Hash
 
 	// Read reads more output from the hash; reading affects the hash's
-	// state. (ShakeHash.Read is thus very different from Hash.Sum)
+	// state. (ShakeHash.Read is thus very different from Hash.Sum.)
 	// It never returns an error, but subsequent calls to Write or Sum
 	// will panic.
 	io.Reader
@@ -41,115 +27,18 @@ type ShakeHash interface {
 	Clone() ShakeHash
 }
 
-// cSHAKE specific context
-type cshakeState struct {
-	*state // SHA-3 state context and Read/Write operations
-
-	// initBlock is the cSHAKE specific initialization set of bytes. It is initialized
-	// by newCShake function and stores concatenation of N followed by S, encoded
-	// by the method specified in 3.3 of [1].
-	// It is stored here in order for Reset() to be able to put context into
-	// initial state.
-	initBlock []byte
-}
-
-func bytepad(data []byte, rate int) []byte {
-	out := make([]byte, 0, 9+len(data)+rate-1)
-	out = append(out, leftEncode(uint64(rate))...)
-	out = append(out, data...)
-	if padlen := rate - len(out)%rate; padlen < rate {
-		out = append(out, make([]byte, padlen)...)
-	}
-	return out
-}
-
-func leftEncode(x uint64) []byte {
-	// Let n be the smallest positive integer for which 2^(8n) > x.
-	n := (bits.Len64(x) + 7) / 8
-	if n == 0 {
-		n = 1
-	}
-	// Return n || x with n as a byte and x an n bytes in big-endian order.
-	b := make([]byte, 9)
-	binary.BigEndian.PutUint64(b[1:], x)
-	b = b[9-n-1:]
-	b[0] = byte(n)
-	return b
-}
-
-func newCShake(N, S []byte, rate, outputLen int, dsbyte byte) ShakeHash {
-	c := cshakeState{state: &state{rate: rate, outputLen: outputLen, dsbyte: dsbyte}}
-	c.initBlock = make([]byte, 0, 9+len(N)+9+len(S)) // leftEncode returns max 9 bytes
-	c.initBlock = append(c.initBlock, leftEncode(uint64(len(N))*8)...)
-	c.initBlock = append(c.initBlock, N...)
-	c.initBlock = append(c.initBlock, leftEncode(uint64(len(S))*8)...)
-	c.initBlock = append(c.initBlock, S...)
-	c.Write(bytepad(c.initBlock, c.rate))
-	return &c
-}
-
-// Reset resets the hash to initial state.
-func (c *cshakeState) Reset() {
-	c.state.Reset()
-	c.Write(bytepad(c.initBlock, c.rate))
-}
-
-// Clone returns copy of a cSHAKE context within its current state.
-func (c *cshakeState) Clone() ShakeHash {
-	b := make([]byte, len(c.initBlock))
-	copy(b, c.initBlock)
-	return &cshakeState{state: c.clone(), initBlock: b}
-}
-
-// Clone returns copy of SHAKE context within its current state.
-func (c *state) Clone() ShakeHash {
-	return c.clone()
-}
-
-func (c *cshakeState) MarshalBinary() ([]byte, error) {
-	return c.AppendBinary(make([]byte, 0, marshaledSize+len(c.initBlock)))
-}
-
-func (c *cshakeState) AppendBinary(b []byte) ([]byte, error) {
-	b, err := c.state.AppendBinary(b)
-	if err != nil {
-		return nil, err
-	}
-	b = append(b, c.initBlock...)
-	return b, nil
-}
-
-func (c *cshakeState) UnmarshalBinary(b []byte) error {
-	if len(b) <= marshaledSize {
-		return errors.New("sha3: invalid hash state")
-	}
-	if err := c.state.UnmarshalBinary(b[:marshaledSize]); err != nil {
-		return err
-	}
-	c.initBlock = bytes.Clone(b[marshaledSize:])
-	return nil
-}
-
 // NewShake128 creates a new SHAKE128 variable-output-length ShakeHash.
 // Its generic security strength is 128 bits against all attacks if at
 // least 32 bytes of its output are used.
 func NewShake128() ShakeHash {
-	return newShake128()
+	return &shakeWrapper{sha3.NewSHAKE128(), 32, false, sha3.NewSHAKE128}
 }
 
 // NewShake256 creates a new SHAKE256 variable-output-length ShakeHash.
 // Its generic security strength is 256 bits against all attacks if
 // at least 64 bytes of its output are used.
 func NewShake256() ShakeHash {
-	return newShake256()
-}
-
-func newShake128Generic() *state {
-	return &state{rate: rateK256, outputLen: 32, dsbyte: dsbyteShake}
-}
-
-func newShake256Generic() *state {
-	return &state{rate: rateK512, outputLen: 64, dsbyte: dsbyteShake}
+	return &shakeWrapper{sha3.NewSHAKE256(), 64, false, sha3.NewSHAKE256}
 }
 
 // NewCShake128 creates a new instance of cSHAKE128 variable-output-length ShakeHash,
@@ -159,10 +48,9 @@ func newShake256Generic() *state {
 // computations on same input with different S yield unrelated outputs.
 // When N and S are both empty, this is equivalent to NewShake128.
 func NewCShake128(N, S []byte) ShakeHash {
-	if len(N) == 0 && len(S) == 0 {
-		return NewShake128()
-	}
-	return newCShake(N, S, rateK256, 32, dsbyteCShake)
+	return &shakeWrapper{sha3.NewCSHAKE128(N, S), 32, false, func() *sha3.SHAKE {
+		return sha3.NewCSHAKE128(N, S)
+	}}
 }
 
 // NewCShake256 creates a new instance of cSHAKE256 variable-output-length ShakeHash,
@@ -172,10 +60,9 @@ func NewCShake128(N, S []byte) ShakeHash {
 // computations on same input with different S yield unrelated outputs.
 // When N and S are both empty, this is equivalent to NewShake256.
 func NewCShake256(N, S []byte) ShakeHash {
-	if len(N) == 0 && len(S) == 0 {
-		return NewShake256()
-	}
-	return newCShake(N, S, rateK512, 64, dsbyteCShake)
+	return &shakeWrapper{sha3.NewCSHAKE256(N, S), 64, false, func() *sha3.SHAKE {
+		return sha3.NewCSHAKE256(N, S)
+	}}
 }
 
 // ShakeSum128 writes an arbitrary-length digest of data into hash.
@@ -191,3 +78,42 @@ func ShakeSum256(hash, data []byte) {
 	h.Write(data)
 	h.Read(hash)
 }
+
+// shakeWrapper adds the Size, Sum, and Clone methods to a sha3.SHAKE
+// to implement the ShakeHash interface.
+type shakeWrapper struct {
+	*sha3.SHAKE
+	outputLen int
+	squeezing bool
+	newSHAKE  func() *sha3.SHAKE
+}
+
+func (w *shakeWrapper) Read(p []byte) (n int, err error) {
+	w.squeezing = true
+	return w.SHAKE.Read(p)
+}
+
+func (w *shakeWrapper) Clone() ShakeHash {
+	s := w.newSHAKE()
+	b, err := w.MarshalBinary()
+	if err != nil {
+		panic(err) // unreachable
+	}
+	if err := s.UnmarshalBinary(b); err != nil {
+		panic(err) // unreachable
+	}
+	return &shakeWrapper{s, w.outputLen, w.squeezing, w.newSHAKE}
+}
+
+func (w *shakeWrapper) Size() int { return w.outputLen }
+
+func (w *shakeWrapper) Sum(b []byte) []byte {
+	if w.squeezing {
+		panic("sha3: Sum after Read")
+	}
+	out := make([]byte, w.outputLen)
+	// Clone the state so that we don't affect future Write calls.
+	s := w.Clone()
+	s.Read(out)
+	return append(b, out...)
+}

backend/vendor/golang.org/x/crypto/sha3/shake_noasm.go

@@ -1,15 +0,0 @@
-// Copyright 2023 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-//go:build !gc || purego || !s390x
-
-package sha3
-
-func newShake128() *state {
-	return newShake128Generic()
-}
-
-func newShake256() *state {
-	return newShake256Generic()
-}

backend/vendor/golang.org/x/mod/modfile/print.go

@@ -33,7 +33,7 @@ type printer struct {
 }
 
 // printf prints to the buffer.
-func (p *printer) printf(format string, args ...interface{}) {
+func (p *printer) printf(format string, args ...any) {
 	fmt.Fprintf(p, format, args...)
 }
 

backend/vendor/golang.org/x/mod/modfile/read.go

@@ -94,7 +94,7 @@ func (x *FileSyntax) Span() (start, end Position) {
 // line, the new line is added at the end of the block containing hint,
 // extracting hint into a new block if it is not yet in one.
 //
-// If the hint is non-nil buts its first token does not match,
+// If the hint is non-nil but its first token does not match,
 // the new line is added after the block containing hint
 // (or hint itself, if not in a block).
 //
@@ -600,7 +600,7 @@ func (in *input) readToken() {
 
 	// Checked all punctuation. Must be identifier token.
 	if c := in.peekRune(); !isIdent(c) {
-		in.Error(fmt.Sprintf("unexpected input character %#q", c))
+		in.Error(fmt.Sprintf("unexpected input character %#q", rune(c)))
 	}
 
 	// Scan over identifier.

backend/vendor/golang.org/x/mod/modfile/rule.go

@@ -368,7 +368,7 @@ func (f *File) add(errs *ErrorList, block *LineBlock, line *Line, verb string, a
 			Err:      err,
 		})
 	}
-	errorf := func(format string, args ...interface{}) {
+	errorf := func(format string, args ...any) {
 		wrapError(fmt.Errorf(format, args...))
 	}
 
@@ -574,7 +574,7 @@ func parseReplace(filename string, line *Line, verb string, args []string, fix V
 			Err:      err,
 		}
 	}
-	errorf := func(format string, args ...interface{}) *Error {
+	errorf := func(format string, args ...any) *Error {
 		return wrapError(fmt.Errorf(format, args...))
 	}
 
@@ -685,7 +685,7 @@ func (f *WorkFile) add(errs *ErrorList, line *Line, verb string, args []string,
 			Err:      err,
 		})
 	}
-	errorf := func(format string, args ...interface{}) {
+	errorf := func(format string, args ...any) {
 		wrapError(fmt.Errorf(format, args...))
 	}
 
@@ -1594,7 +1594,7 @@ func (f *File) AddRetract(vi VersionInterval, rationale string) error {
 		r.Syntax = f.Syntax.addLine(nil, "retract", "[", AutoQuote(vi.Low), ",", AutoQuote(vi.High), "]")
 	}
 	if rationale != "" {
-		for _, line := range strings.Split(rationale, "\n") {
+		for line := range strings.SplitSeq(rationale, "\n") {
 			com := Comment{Token: "// " + line}
 			r.Syntax.Comment().Before = append(r.Syntax.Comment().Before, com)
 		}

backend/vendor/golang.org/x/mod/module/module.go

@@ -261,7 +261,7 @@ func modPathOK(r rune) bool {
 
 // importPathOK reports whether r can appear in a package import path element.
 //
-// Import paths are intermediate between module paths and file paths: we allow
+// Import paths are intermediate between module paths and file paths: we
 // disallow characters that would be confusing or ambiguous as arguments to
 // 'go get' (such as '@' and ' ' ), but allow certain characters that are
 // otherwise-unambiguous on the command line and historically used for some
@@ -802,8 +802,8 @@ func MatchPrefixPatterns(globs, target string) bool {
 	for globs != "" {
 		// Extract next non-empty glob in comma-separated list.
 		var glob string
-		if i := strings.Index(globs, ","); i >= 0 {
-			glob, globs = globs[:i], globs[i+1:]
+		if before, after, ok := strings.Cut(globs, ","); ok {
+			glob, globs = before, after
 		} else {
 			glob, globs = globs, ""
 		}

backend/vendor/golang.org/x/mod/semver/semver.go

@@ -45,8 +45,8 @@ func IsValid(v string) bool {
 
 // Canonical returns the canonical formatting of the semantic version v.
 // It fills in any missing .MINOR or .PATCH and discards build metadata.
-// Two semantic versions compare equal only if their canonical formattings
-// are identical strings.
+// Two semantic versions compare equal only if their canonical formatting
+// is an identical string.
 // The canonical invalid semantic version is the empty string.
 func Canonical(v string) string {
 	p, ok := parse(v)

backend/vendor/golang.org/x/net/context/context.go

@@ -2,42 +2,9 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// Package context defines the Context type, which carries deadlines,
-// cancellation signals, and other request-scoped values across API boundaries
-// and between processes.
-// As of Go 1.7 this package is available in the standard library under the
-// name [context].
+// Package context has been superseded by the standard library [context] package.
 //
-// Incoming requests to a server should create a [Context], and outgoing
-// calls to servers should accept a Context. The chain of function
-// calls between them must propagate the Context, optionally replacing
-// it with a derived Context created using [WithCancel], [WithDeadline],
-// [WithTimeout], or [WithValue].
-//
-// Programs that use Contexts should follow these rules to keep interfaces
-// consistent across packages and enable static analysis tools to check context
-// propagation:
-//
-// Do not store Contexts inside a struct type; instead, pass a Context
-// explicitly to each function that needs it. This is discussed further in
-// https://go.dev/blog/context-and-structs. The Context should be the first
-// parameter, typically named ctx:
-//
-//	func DoSomething(ctx context.Context, arg Arg) error {
-//		// ... use ctx ...
-//	}
-//
-// Do not pass a nil [Context], even if a function permits it. Pass [context.TODO]
-// if you are unsure about which Context to use.
-//
-// Use context Values only for request-scoped data that transits processes and
-// APIs, not for passing optional parameters to functions.
-//
-// The same Context may be passed to functions running in different goroutines;
-// Contexts are safe for simultaneous use by multiple goroutines.
-//
-// See https://go.dev/blog/context for example code for a server that uses
-// Contexts.
+// Deprecated: Use the standard library context package instead.
 package context
 
 import (

backend/vendor/golang.org/x/net/html/iter.go

@@ -2,8 +2,6 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-//go:build go1.23
-
 package html
 
 import "iter"

backend/vendor/golang.org/x/net/html/node.go

@@ -11,6 +11,7 @@ import (
 // A NodeType is the type of a Node.
 type NodeType uint32
 
+//go:generate stringer -type NodeType
 const (
 	ErrorNode NodeType = iota
 	TextNode

backend/vendor/golang.org/x/net/html/nodetype_string.go

@@ -0,0 +1,31 @@
+// Code generated by "stringer -type NodeType"; DO NOT EDIT.
+
+package html
+
+import "strconv"
+
+func _() {
+	// An "invalid array index" compiler error signifies that the constant values have changed.
+	// Re-run the stringer command to generate them again.
+	var x [1]struct{}
+	_ = x[ErrorNode-0]
+	_ = x[TextNode-1]
+	_ = x[DocumentNode-2]
+	_ = x[ElementNode-3]
+	_ = x[CommentNode-4]
+	_ = x[DoctypeNode-5]
+	_ = x[RawNode-6]
+	_ = x[scopeMarkerNode-7]
+}
+
+const _NodeType_name = "ErrorNodeTextNodeDocumentNodeElementNodeCommentNodeDoctypeNodeRawNodescopeMarkerNode"
+
+var _NodeType_index = [...]uint8{0, 9, 17, 29, 40, 51, 62, 69, 84}
+
+func (i NodeType) String() string {
+	idx := int(i) - 0
+	if i < 0 || idx >= len(_NodeType_index)-1 {
+		return "NodeType(" + strconv.FormatInt(int64(i), 10) + ")"
+	}
+	return _NodeType_name[_NodeType_index[idx]:_NodeType_index[idx+1]]
+}

backend/vendor/golang.org/x/net/http2/client_priority_go126.go

@@ -0,0 +1,20 @@
+// Copyright 2026 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+//go:build !go1.27
+
+package http2
+
+import "net/http"
+
+// Support for go.dev/issue/75500 is added in Go 1.27. In case anyone uses
+// x/net with versions before Go 1.27, we return true here so that their write
+// scheduler will still be the round-robin write scheduler rather than the RFC
+// 9218 write scheduler. That way, older users of Go will not see a sudden
+// change of behavior just from importing x/net.
+//
+// TODO(nsh): remove this file after x/net go.mod is at Go 1.27.
+func clientPriorityDisabled(_ *http.Server) bool {
+	return true
+}

backend/vendor/golang.org/x/net/http2/client_priority_go127.go

@@ -0,0 +1,13 @@
+// Copyright 2026 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+//go:build go1.27
+
+package http2
+
+import "net/http"
+
+func clientPriorityDisabled(s *http.Server) bool {
+	return s.DisableClientPriority
+}

backend/vendor/golang.org/x/net/http2/frame.go

@@ -11,11 +11,13 @@ import (
 	"fmt"
 	"io"
 	"log"
+	"slices"
 	"strings"
 	"sync"
 
 	"golang.org/x/net/http/httpguts"
 	"golang.org/x/net/http2/hpack"
+	"golang.org/x/net/internal/httpsfv"
 )
 
 const frameHeaderLen = 9
@@ -23,33 +25,36 @@ const frameHeaderLen = 9
 var padZeros = make([]byte, 255) // zeros for padding
 
 // A FrameType is a registered frame type as defined in
-// https://httpwg.org/specs/rfc7540.html#rfc.section.11.2
+// https://httpwg.org/specs/rfc7540.html#rfc.section.11.2 and other future
+// RFCs.
 type FrameType uint8
 
 const (
-	FrameData         FrameType = 0x0
-	FrameHeaders      FrameType = 0x1
-	FramePriority     FrameType = 0x2
-	FrameRSTStream    FrameType = 0x3
-	FrameSettings     FrameType = 0x4
-	FramePushPromise  FrameType = 0x5
-	FramePing         FrameType = 0x6
-	FrameGoAway       FrameType = 0x7
-	FrameWindowUpdate FrameType = 0x8
-	FrameContinuation FrameType = 0x9
+	FrameData           FrameType = 0x0
+	FrameHeaders        FrameType = 0x1
+	FramePriority       FrameType = 0x2
+	FrameRSTStream      FrameType = 0x3
+	FrameSettings       FrameType = 0x4
+	FramePushPromise    FrameType = 0x5
+	FramePing           FrameType = 0x6
+	FrameGoAway         FrameType = 0x7
+	FrameWindowUpdate   FrameType = 0x8
+	FrameContinuation   FrameType = 0x9
+	FramePriorityUpdate FrameType = 0x10
 )
 
 var frameNames = [...]string{
-	FrameData:         "DATA",
-	FrameHeaders:      "HEADERS",
-	FramePriority:     "PRIORITY",
-	FrameRSTStream:    "RST_STREAM",
-	FrameSettings:     "SETTINGS",
-	FramePushPromise:  "PUSH_PROMISE",
-	FramePing:         "PING",
-	FrameGoAway:       "GOAWAY",
-	FrameWindowUpdate: "WINDOW_UPDATE",
-	FrameContinuation: "CONTINUATION",
+	FrameData:           "DATA",
+	FrameHeaders:        "HEADERS",
+	FramePriority:       "PRIORITY",
+	FrameRSTStream:      "RST_STREAM",
+	FrameSettings:       "SETTINGS",
+	FramePushPromise:    "PUSH_PROMISE",
+	FramePing:           "PING",
+	FrameGoAway:         "GOAWAY",
+	FrameWindowUpdate:   "WINDOW_UPDATE",
+	FrameContinuation:   "CONTINUATION",
+	FramePriorityUpdate: "PRIORITY_UPDATE",
 }
 
 func (t FrameType) String() string {
@@ -125,21 +130,24 @@ var flagName = map[FrameType]map[Flags]string{
 type frameParser func(fc *frameCache, fh FrameHeader, countError func(string), payload []byte) (Frame, error)
 
 var frameParsers = [...]frameParser{
-	FrameData:         parseDataFrame,
-	FrameHeaders:      parseHeadersFrame,
-	FramePriority:     parsePriorityFrame,
-	FrameRSTStream:    parseRSTStreamFrame,
-	FrameSettings:     parseSettingsFrame,
-	FramePushPromise:  parsePushPromise,
-	FramePing:         parsePingFrame,
-	FrameGoAway:       parseGoAwayFrame,
-	FrameWindowUpdate: parseWindowUpdateFrame,
-	FrameContinuation: parseContinuationFrame,
+	FrameData:           parseDataFrame,
+	FrameHeaders:        parseHeadersFrame,
+	FramePriority:       parsePriorityFrame,
+	FrameRSTStream:      parseRSTStreamFrame,
+	FrameSettings:       parseSettingsFrame,
+	FramePushPromise:    parsePushPromise,
+	FramePing:           parsePingFrame,
+	FrameGoAway:         parseGoAwayFrame,
+	FrameWindowUpdate:   parseWindowUpdateFrame,
+	FrameContinuation:   parseContinuationFrame,
+	FramePriorityUpdate: parsePriorityUpdateFrame,
 }
 
 func typeFrameParser(t FrameType) frameParser {
 	if int(t) < len(frameParsers) {
-		return frameParsers[t]
+		if f := frameParsers[t]; f != nil {
+			return f
+		}
 	}
 	return parseUnknownFrame
 }
@@ -280,6 +288,8 @@ type Framer struct {
 	// lastHeaderStream is non-zero if the last frame was an
 	// unfinished HEADERS/CONTINUATION.
 	lastHeaderStream uint32
+	// lastFrameType holds the type of the last frame for verifying frame order.
+	lastFrameType FrameType
 
 	maxReadSize uint32
 	headerBuf   [frameHeaderLen]byte
@@ -488,30 +498,41 @@ func terminalReadFrameError(err error) bool {
 	return err != nil
 }
 
-// ReadFrame reads a single frame. The returned Frame is only valid
-// until the next call to ReadFrame.
+// ReadFrameHeader reads the header of the next frame.
+// It reads the 9-byte fixed frame header, and does not read any portion of the
+// frame payload. The caller is responsible for consuming the payload, either
+// with ReadFrameForHeader or directly from the Framer's io.Reader.
 //
-// If the frame is larger than previously set with SetMaxReadFrameSize, the
-// returned error is ErrFrameTooLarge. Other errors may be of type
-// ConnectionError, StreamError, or anything else from the underlying
-// reader.
+// If the frame is larger than previously set with SetMaxReadFrameSize, it
+// returns the frame header and ErrFrameTooLarge.
 //
-// If ReadFrame returns an error and a non-nil Frame, the Frame's StreamID
-// indicates the stream responsible for the error.
-func (fr *Framer) ReadFrame() (Frame, error) {
+// If the returned FrameHeader.StreamID is non-zero, it indicates the stream
+// responsible for the error.
+func (fr *Framer) ReadFrameHeader() (FrameHeader, error) {
 	fr.errDetail = nil
-	if fr.lastFrame != nil {
-		fr.lastFrame.invalidate()
-	}
 	fh, err := readFrameHeader(fr.headerBuf[:], fr.r)
 	if err != nil {
-		return nil, err
+		return fh, err
 	}
 	if fh.Length > fr.maxReadSize {
 		if fh == invalidHTTP1LookingFrameHeader() {
-			return nil, fmt.Errorf("http2: failed reading the frame payload: %w, note that the frame header looked like an HTTP/1.1 header", ErrFrameTooLarge)
+			return fh, fmt.Errorf("http2: failed reading the frame payload: %w, note that the frame header looked like an HTTP/1.1 header", ErrFrameTooLarge)
 		}
-		return nil, ErrFrameTooLarge
+		return fh, ErrFrameTooLarge
+	}
+	if err := fr.checkFrameOrder(fh); err != nil {
+		return fh, err
+	}
+	return fh, nil
+}
+
+// ReadFrameForHeader reads the payload for the frame with the given FrameHeader.
+//
+// It behaves identically to ReadFrame, other than not checking the maximum
+// frame size.
+func (fr *Framer) ReadFrameForHeader(fh FrameHeader) (Frame, error) {
+	if fr.lastFrame != nil {
+		fr.lastFrame.invalidate()
 	}
 	payload := fr.getReadBuf(fh.Length)
 	if _, err := io.ReadFull(fr.r, payload); err != nil {
@@ -527,9 +548,7 @@ func (fr *Framer) ReadFrame() (Frame, error) {
 		}
 		return nil, err
 	}
-	if err := fr.checkFrameOrder(f); err != nil {
-		return nil, err
-	}
+	fr.lastFrame = f
 	if fr.logReads {
 		fr.debugReadLoggerf("http2: Framer %p: read %v", fr, summarizeFrame(f))
 	}
@@ -539,6 +558,24 @@ func (fr *Framer) ReadFrame() (Frame, error) {
 	return f, nil
 }
 
+// ReadFrame reads a single frame. The returned Frame is only valid
+// until the next call to ReadFrame or ReadFrameBodyForHeader.
+//
+// If the frame is larger than previously set with SetMaxReadFrameSize, the
+// returned error is ErrFrameTooLarge. Other errors may be of type
+// ConnectionError, StreamError, or anything else from the underlying
+// reader.
+//
+// If ReadFrame returns an error and a non-nil Frame, the Frame's StreamID
+// indicates the stream responsible for the error.
+func (fr *Framer) ReadFrame() (Frame, error) {
+	fh, err := fr.ReadFrameHeader()
+	if err != nil {
+		return nil, err
+	}
+	return fr.ReadFrameForHeader(fh)
+}
+
 // connError returns ConnectionError(code) but first
 // stashes away a public reason to the caller can optionally relay it
 // to the peer before hanging up on them. This might help others debug
@@ -551,20 +588,19 @@ func (fr *Framer) connError(code ErrCode, reason string) error {
 // checkFrameOrder reports an error if f is an invalid frame to return
 // next from ReadFrame. Mostly it checks whether HEADERS and
 // CONTINUATION frames are contiguous.
-func (fr *Framer) checkFrameOrder(f Frame) error {
-	last := fr.lastFrame
-	fr.lastFrame = f
+func (fr *Framer) checkFrameOrder(fh FrameHeader) error {
+	lastType := fr.lastFrameType
+	fr.lastFrameType = fh.Type
 	if fr.AllowIllegalReads {
 		return nil
 	}
 
-	fh := f.Header()
 	if fr.lastHeaderStream != 0 {
 		if fh.Type != FrameContinuation {
 			return fr.connError(ErrCodeProtocol,
 				fmt.Sprintf("got %s for stream %d; expected CONTINUATION following %s for stream %d",
 					fh.Type, fh.StreamID,
-					last.Header().Type, fr.lastHeaderStream))
+					lastType, fr.lastHeaderStream))
 		}
 		if fh.StreamID != fr.lastHeaderStream {
 			return fr.connError(ErrCodeProtocol,
@@ -1152,16 +1188,41 @@ type PriorityFrame struct {
 	PriorityParam
 }
 
-var defaultRFC9218Priority = PriorityParam{
-	incremental: 0,
-	urgency:     3,
+// defaultRFC9218Priority determines what priority we should use as the default
+// value.
+//
+// According to RFC 9218, by default, streams should be given an urgency of 3
+// and should be non-incremental. However, making streams non-incremental by
+// default would be a huge change to our historical behavior where we would
+// round-robin writes across streams. When streams are non-incremental, we
+// would process streams of the same urgency one-by-one to completion instead.
+//
+// To avoid such a sudden change which might break some HTTP/2 users, this
+// function allows the caller to specify whether they can actually use the
+// default value as specified in RFC 9218. If not, this function will return a
+// priority value where streams are incremental by default instead: effectively
+// a round-robin between stream of the same urgency.
+//
+// As an example, a server might not be able to use the RFC 9218 default value
+// when it's not sure that the client it is serving is aware of RFC 9218.
+func defaultRFC9218Priority(canUseDefault bool) PriorityParam {
+	if canUseDefault {
+		return PriorityParam{
+			urgency:     3,
+			incremental: 0,
+		}
+	}
+	return PriorityParam{
+		urgency:     3,
+		incremental: 1,
+	}
 }
 
 // Note that HTTP/2 has had two different prioritization schemes, and
 // PriorityParam struct below is a superset of both schemes. The exported
 // symbols are from RFC 7540 and the non-exported ones are from RFC 9218.
 
-// PriorityParam are the stream prioritzation parameters.
+// PriorityParam are the stream prioritization parameters.
 type PriorityParam struct {
 	// StreamDep is a 31-bit stream identifier for the
 	// stream that this stream depends on. Zero means no
@@ -1238,6 +1299,74 @@ func (f *Framer) WritePriority(streamID uint32, p PriorityParam) error {
 	return f.endWrite()
 }
 
+// PriorityUpdateFrame is a PRIORITY_UPDATE frame as described in
+// https://www.rfc-editor.org/rfc/rfc9218.html#name-the-priority_update-frame.
+type PriorityUpdateFrame struct {
+	FrameHeader
+	Priority            string
+	PrioritizedStreamID uint32
+}
+
+func parseRFC9218Priority(s string, canUseDefault bool) (p PriorityParam, ok bool) {
+	p = defaultRFC9218Priority(canUseDefault)
+	ok = httpsfv.ParseDictionary(s, func(key, val, _ string) {
+		switch key {
+		case "u":
+			if u, ok := httpsfv.ParseInteger(val); ok && u >= 0 && u <= 7 {
+				p.urgency = uint8(u)
+			}
+		case "i":
+			if i, ok := httpsfv.ParseBoolean(val); ok {
+				if i {
+					p.incremental = 1
+				} else {
+					p.incremental = 0
+				}
+			}
+		}
+	})
+	if !ok {
+		return defaultRFC9218Priority(canUseDefault), ok
+	}
+	return p, true
+}
+
+func parsePriorityUpdateFrame(_ *frameCache, fh FrameHeader, countError func(string), payload []byte) (Frame, error) {
+	if fh.StreamID != 0 {
+		countError("frame_priority_update_non_zero_stream")
+		return nil, connError{ErrCodeProtocol, "PRIORITY_UPDATE frame with non-zero stream ID"}
+	}
+	if len(payload) < 4 {
+		countError("frame_priority_update_bad_length")
+		return nil, connError{ErrCodeFrameSize, fmt.Sprintf("PRIORITY_UPDATE frame payload size was %d; want at least 4", len(payload))}
+	}
+	v := binary.BigEndian.Uint32(payload[:4])
+	streamID := v & 0x7fffffff // mask off high bit
+	if streamID == 0 {
+		countError("frame_priority_update_prioritizing_zero_stream")
+		return nil, connError{ErrCodeProtocol, "PRIORITY_UPDATE frame with prioritized stream ID of zero"}
+	}
+	return &PriorityUpdateFrame{
+		FrameHeader:         fh,
+		PrioritizedStreamID: streamID,
+		Priority:            string(payload[4:]),
+	}, nil
+}
+
+// WritePriorityUpdate writes a PRIORITY_UPDATE frame.
+//
+// It will perform exactly one Write to the underlying Writer.
+// It is the caller's responsibility to not call other Write methods concurrently.
+func (f *Framer) WritePriorityUpdate(streamID uint32, priority string) error {
+	if !validStreamID(streamID) && !f.AllowIllegalWrites {
+		return errStreamID
+	}
+	f.startWrite(FramePriorityUpdate, 0, 0)
+	f.writeUint32(streamID)
+	f.writeBytes([]byte(priority))
+	return f.endWrite()
+}
+
 // A RSTStreamFrame allows for abnormal termination of a stream.
 // See https://httpwg.org/specs/rfc7540.html#rfc.section.6.4
 type RSTStreamFrame struct {
@@ -1519,6 +1648,23 @@ func (mh *MetaHeadersFrame) PseudoFields() []hpack.HeaderField {
 	return mh.Fields
 }
 
+func (mh *MetaHeadersFrame) rfc9218Priority(priorityAware bool) (p PriorityParam, priorityAwareAfter, hasIntermediary bool) {
+	var s string
+	for _, field := range mh.Fields {
+		if field.Name == "priority" {
+			s = field.Value
+			priorityAware = true
+		}
+		if slices.Contains([]string{"via", "forwarded", "x-forwarded-for"}, field.Name) {
+			hasIntermediary = true
+		}
+	}
+	// No need to check for ok. parseRFC9218Priority will return a default
+	// value if there is no priority field or if the field cannot be parsed.
+	p, _ = parseRFC9218Priority(s, priorityAware && !hasIntermediary)
+	return p, priorityAware, hasIntermediary
+}
+
 func (mh *MetaHeadersFrame) checkPseudos() error {
 	var isRequest, isResponse bool
 	pf := mh.PseudoFields()

backend/vendor/golang.org/x/net/http2/http2.go

@@ -169,6 +169,7 @@ const (
 	SettingMaxFrameSize          SettingID = 0x5
 	SettingMaxHeaderListSize     SettingID = 0x6
 	SettingEnableConnectProtocol SettingID = 0x8
+	SettingNoRFC7540Priorities   SettingID = 0x9
 )
 
 var settingName = map[SettingID]string{
@@ -179,6 +180,7 @@ var settingName = map[SettingID]string{
 	SettingMaxFrameSize:          "MAX_FRAME_SIZE",
 	SettingMaxHeaderListSize:     "MAX_HEADER_LIST_SIZE",
 	SettingEnableConnectProtocol: "ENABLE_CONNECT_PROTOCOL",
+	SettingNoRFC7540Priorities:   "NO_RFC7540_PRIORITIES",
 }
 
 func (s SettingID) String() string {

backend/vendor/golang.org/x/net/http2/server.go

@@ -472,10 +472,13 @@ func (s *Server) serveConn(c net.Conn, opts *ServeConnOpts, newf func(*serverCon
 		sc.conn.SetWriteDeadline(time.Time{})
 	}
 
-	if s.NewWriteScheduler != nil {
+	switch {
+	case s.NewWriteScheduler != nil:
 		sc.writeSched = s.NewWriteScheduler()
-	} else {
+	case clientPriorityDisabled(http1srv):
 		sc.writeSched = newRoundRobinWriteScheduler()
+	default:
+		sc.writeSched = newPriorityWriteSchedulerRFC9218()
 	}
 
 	// These start at the RFC-specified defaults. If there is a higher
@@ -648,6 +651,23 @@ type serverConn struct {
 
 	// Used by startGracefulShutdown.
 	shutdownOnce sync.Once
+
+	// Used for RFC 9218 prioritization.
+	hasIntermediary bool // connection is done via an intermediary / proxy
+	priorityAware   bool // the client has sent priority signal, meaning that it is aware of it.
+}
+
+func (sc *serverConn) writeSchedIgnoresRFC7540() bool {
+	switch sc.writeSched.(type) {
+	case *priorityWriteSchedulerRFC9218:
+		return true
+	case *randomWriteScheduler:
+		return true
+	case *roundRobinWriteScheduler:
+		return true
+	default:
+		return false
+	}
 }
 
 func (sc *serverConn) maxHeaderListSize() uint32 {
@@ -938,6 +958,9 @@ func (sc *serverConn) serve(conf http2Config) {
 	if !disableExtendedConnectProtocol {
 		settings = append(settings, Setting{SettingEnableConnectProtocol, 1})
 	}
+	if sc.writeSchedIgnoresRFC7540() {
+		settings = append(settings, Setting{SettingNoRFC7540Priorities, 1})
+	}
 	sc.writeFrame(FrameWriteRequest{
 		write: settings,
 	})
@@ -1623,6 +1646,8 @@ func (sc *serverConn) processFrame(f Frame) error {
 		// A client cannot push. Thus, servers MUST treat the receipt of a PUSH_PROMISE
 		// frame as a connection error (Section 5.4.1) of type PROTOCOL_ERROR.
 		return sc.countError("push_promise", ConnectionError(ErrCodeProtocol))
+	case *PriorityUpdateFrame:
+		return sc.processPriorityUpdate(f)
 	default:
 		sc.vlogf("http2: server ignoring frame: %v", f.Header())
 		return nil
@@ -1803,6 +1828,10 @@ func (sc *serverConn) processSetting(s Setting) error {
 	case SettingEnableConnectProtocol:
 		// Receipt of this parameter by a server does not
 		// have any impact
+	case SettingNoRFC7540Priorities:
+		if s.Val > 1 {
+			return ConnectionError(ErrCodeProtocol)
+		}
 	default:
 		// Unknown setting: "An endpoint that receives a SETTINGS
 		// frame with any unknown or unsupported identifier MUST
@@ -2073,13 +2102,33 @@ func (sc *serverConn) processHeaders(f *MetaHeadersFrame) error {
 	if f.StreamEnded() {
 		initialState = stateHalfClosedRemote
 	}
-	st := sc.newStream(id, 0, initialState)
+
+	// We are handling two special cases here:
+	// 1. When a request is sent via an intermediary, we force priority to be
+	// u=3,i. This is essentially a round-robin behavior, and is done to ensure
+	// fairness between, for example, multiple clients using the same proxy.
+	// 2. Until a client has shown that it is aware of RFC 9218, we make its
+	// streams non-incremental by default. This is done to preserve the
+	// historical behavior of handling streams in a round-robin manner, rather
+	// than one-by-one to completion.
+	initialPriority := defaultRFC9218Priority(sc.priorityAware && !sc.hasIntermediary)
+	if _, ok := sc.writeSched.(*priorityWriteSchedulerRFC9218); ok && !sc.hasIntermediary {
+		headerPriority, priorityAware, hasIntermediary := f.rfc9218Priority(sc.priorityAware)
+		initialPriority = headerPriority
+		sc.hasIntermediary = hasIntermediary
+		if priorityAware {
+			sc.priorityAware = true
+		}
+	}
+	st := sc.newStream(id, 0, initialState, initialPriority)
 
 	if f.HasPriority() {
 		if err := sc.checkPriority(f.StreamID, f.Priority); err != nil {
 			return err
 		}
-		sc.writeSched.AdjustStream(st.id, f.Priority)
+		if !sc.writeSchedIgnoresRFC7540() {
+			sc.writeSched.AdjustStream(st.id, f.Priority)
+		}
 	}
 
 	rw, req, err := sc.newWriterAndRequest(st, f)
@@ -2120,7 +2169,7 @@ func (sc *serverConn) upgradeRequest(req *http.Request) {
 	sc.serveG.check()
 	id := uint32(1)
 	sc.maxClientStreamID = id
-	st := sc.newStream(id, 0, stateHalfClosedRemote)
+	st := sc.newStream(id, 0, stateHalfClosedRemote, defaultRFC9218Priority(sc.priorityAware && !sc.hasIntermediary))
 	st.reqTrailer = req.Trailer
 	if st.reqTrailer != nil {
 		st.trailer = make(http.Header)
@@ -2185,11 +2234,32 @@ func (sc *serverConn) processPriority(f *PriorityFrame) error {
 	if err := sc.checkPriority(f.StreamID, f.PriorityParam); err != nil {
 		return err
 	}
+	// We need to avoid calling AdjustStream when using the RFC 9218 write
+	// scheduler. Otherwise, incremental's zero value in PriorityParam will
+	// unexpectedly make all streams non-incremental. This causes us to process
+	// streams one-by-one to completion rather than doing it in a round-robin
+	// manner (the historical behavior), which might be unexpected to users.
+	if sc.writeSchedIgnoresRFC7540() {
+		return nil
+	}
 	sc.writeSched.AdjustStream(f.StreamID, f.PriorityParam)
 	return nil
 }
 
-func (sc *serverConn) newStream(id, pusherID uint32, state streamState) *stream {
+func (sc *serverConn) processPriorityUpdate(f *PriorityUpdateFrame) error {
+	sc.priorityAware = true
+	if _, ok := sc.writeSched.(*priorityWriteSchedulerRFC9218); !ok {
+		return nil
+	}
+	p, ok := parseRFC9218Priority(f.Priority, sc.priorityAware)
+	if !ok {
+		return sc.countError("unparsable_priority_update", streamError(f.PrioritizedStreamID, ErrCodeProtocol))
+	}
+	sc.writeSched.AdjustStream(f.PrioritizedStreamID, p)
+	return nil
+}
+
+func (sc *serverConn) newStream(id, pusherID uint32, state streamState, priority PriorityParam) *stream {
 	sc.serveG.check()
 	if id == 0 {
 		panic("internal error: cannot create stream with id 0")
@@ -2212,7 +2282,7 @@ func (sc *serverConn) newStream(id, pusherID uint32, state streamState) *stream
 	}
 
 	sc.streams[id] = st
-	sc.writeSched.OpenStream(st.id, OpenStreamOptions{PusherID: pusherID})
+	sc.writeSched.OpenStream(st.id, OpenStreamOptions{PusherID: pusherID, priority: priority})
 	if st.isPushed() {
 		sc.curPushedStreams++
 	} else {
@@ -3218,7 +3288,7 @@ func (sc *serverConn) startPush(msg *startPushRequest) {
 		// transition to "half closed (remote)" after sending the initial HEADERS, but
 		// we start in "half closed (remote)" for simplicity.
 		// See further comments at the definition of stateHalfClosedRemote.
-		promised := sc.newStream(promisedID, msg.parent.id, stateHalfClosedRemote)
+		promised := sc.newStream(promisedID, msg.parent.id, stateHalfClosedRemote, defaultRFC9218Priority(sc.priorityAware && !sc.hasIntermediary))
 		rw, req, err := sc.newWriterAndRequestNoBody(promised, httpcommon.ServerRequestParam{
 			Method:    msg.method,
 			Scheme:    msg.url.Scheme,

backend/vendor/golang.org/x/net/http2/transport.go

@@ -9,6 +9,7 @@ package http2
 import (
 	"bufio"
 	"bytes"
+	"compress/flate"
 	"compress/gzip"
 	"context"
 	"crypto/rand"
@@ -375,11 +376,24 @@ type ClientConn struct {
 	// completely unresponsive connection.
 	pendingResets int
 
+	// readBeforeStreamID is the smallest stream ID that has not been followed by
+	// a frame read from the peer. We use this to determine when a request may
+	// have been sent to a completely unresponsive connection:
+	// If the request ID is less than readBeforeStreamID, then we have had some
+	// indication of life on the connection since sending the request.
+	readBeforeStreamID uint32
+
 	// reqHeaderMu is a 1-element semaphore channel controlling access to sending new requests.
 	// Write to reqHeaderMu to lock it, read from it to unlock.
 	// Lock reqmu BEFORE mu or wmu.
 	reqHeaderMu chan struct{}
 
+	// internalStateHook reports state changes back to the net/http.ClientConn.
+	// Note that this is different from the user state hook registered by
+	// net/http.ClientConn.SetStateHook: The internal hook calls ClientConn,
+	// which calls the user hook.
+	internalStateHook func()
+
 	// wmu is held while writing.
 	// Acquire BEFORE mu when holding both, to avoid blocking mu on network writes.
 	// Only acquire both at the same time when changing peer settings.
@@ -709,7 +723,7 @@ func canRetryError(err error) bool {
 
 func (t *Transport) dialClientConn(ctx context.Context, addr string, singleUse bool) (*ClientConn, error) {
 	if t.transportTestHooks != nil {
-		return t.newClientConn(nil, singleUse)
+		return t.newClientConn(nil, singleUse, nil)
 	}
 	host, _, err := net.SplitHostPort(addr)
 	if err != nil {
@@ -719,7 +733,7 @@ func (t *Transport) dialClientConn(ctx context.Context, addr string, singleUse b
 	if err != nil {
 		return nil, err
 	}
-	return t.newClientConn(tconn, singleUse)
+	return t.newClientConn(tconn, singleUse, nil)
 }
 
 func (t *Transport) newTLSConfig(host string) *tls.Config {
@@ -771,10 +785,10 @@ func (t *Transport) expectContinueTimeout() time.Duration {
 }
 
 func (t *Transport) NewClientConn(c net.Conn) (*ClientConn, error) {
-	return t.newClientConn(c, t.disableKeepAlives())
+	return t.newClientConn(c, t.disableKeepAlives(), nil)
 }
 
-func (t *Transport) newClientConn(c net.Conn, singleUse bool) (*ClientConn, error) {
+func (t *Transport) newClientConn(c net.Conn, singleUse bool, internalStateHook func()) (*ClientConn, error) {
 	conf := configFromTransport(t)
 	cc := &ClientConn{
 		t:                           t,
@@ -796,6 +810,7 @@ func (t *Transport) newClientConn(c net.Conn, singleUse bool) (*ClientConn, erro
 		pings:                       make(map[[8]byte]chan struct{}),
 		reqHeaderMu:                 make(chan struct{}, 1),
 		lastActive:                  time.Now(),
+		internalStateHook:           internalStateHook,
 	}
 	if t.transportTestHooks != nil {
 		t.transportTestHooks.newclientconn(cc)
@@ -1036,10 +1051,7 @@ func (cc *ClientConn) idleStateLocked() (st clientConnIdleState) {
 		maxConcurrentOkay = cc.currentRequestCountLocked() < int(cc.maxConcurrentStreams)
 	}
 
-	st.canTakeNewRequest = cc.goAway == nil && !cc.closed && !cc.closing && maxConcurrentOkay &&
-		!cc.doNotReuse &&
-		int64(cc.nextStreamID)+2*int64(cc.pendingRequests) < math.MaxInt32 &&
-		!cc.tooIdleLocked()
+	st.canTakeNewRequest = maxConcurrentOkay && cc.isUsableLocked()
 
 	// If this connection has never been used for a request and is closed,
 	// then let it take a request (which will fail).
@@ -1055,6 +1067,31 @@ func (cc *ClientConn) idleStateLocked() (st clientConnIdleState) {
 	return
 }
 
+func (cc *ClientConn) isUsableLocked() bool {
+	return cc.goAway == nil &&
+		!cc.closed &&
+		!cc.closing &&
+		!cc.doNotReuse &&
+		int64(cc.nextStreamID)+2*int64(cc.pendingRequests) < math.MaxInt32 &&
+		!cc.tooIdleLocked()
+}
+
+// canReserveLocked reports whether a net/http.ClientConn can reserve a slot on this conn.
+//
+// This follows slightly different rules than clientConnIdleState.canTakeNewRequest.
+// We only permit reservations up to the conn's concurrency limit.
+// This differs from ClientConn.ReserveNewRequest, which permits reservations
+// past the limit when StrictMaxConcurrentStreams is set.
+func (cc *ClientConn) canReserveLocked() bool {
+	if cc.currentRequestCountLocked() >= int(cc.maxConcurrentStreams) {
+		return false
+	}
+	if !cc.isUsableLocked() {
+		return false
+	}
+	return true
+}
+
 // currentRequestCountLocked reports the number of concurrency slots currently in use,
 // including active streams, reserved slots, and reset streams waiting for acknowledgement.
 func (cc *ClientConn) currentRequestCountLocked() int {
@@ -1066,6 +1103,14 @@ func (cc *ClientConn) canTakeNewRequestLocked() bool {
 	return st.canTakeNewRequest
 }
 
+// availableLocked reports the number of concurrency slots available.
+func (cc *ClientConn) availableLocked() int {
+	if !cc.canTakeNewRequestLocked() {
+		return 0
+	}
+	return max(0, int(cc.maxConcurrentStreams)-cc.currentRequestCountLocked())
+}
+
 // tooIdleLocked reports whether this connection has been been sitting idle
 // for too much wall time.
 func (cc *ClientConn) tooIdleLocked() bool {
@@ -1090,6 +1135,7 @@ func (cc *ClientConn) closeConn() {
 	t := time.AfterFunc(250*time.Millisecond, cc.forceCloseConn)
 	defer t.Stop()
 	cc.tconn.Close()
+	cc.maybeCallStateHook()
 }
 
 // A tls.Conn.Close can hang for a long time if the peer is unresponsive.
@@ -1615,6 +1661,8 @@ func (cs *clientStream) cleanupWriteRequest(err error) {
 	}
 	bodyClosed := cs.reqBodyClosed
 	closeOnIdle := cc.singleUse || cc.doNotReuse || cc.t.disableKeepAlives() || cc.goAway != nil
+	// Have we read any frames from the connection since sending this request?
+	readSinceStream := cc.readBeforeStreamID > cs.ID
 	cc.mu.Unlock()
 	if mustCloseBody {
 		cs.reqBody.Close()
@@ -1646,8 +1694,10 @@ func (cs *clientStream) cleanupWriteRequest(err error) {
 				//
 				// This could be due to the server becoming unresponsive.
 				// To avoid sending too many requests on a dead connection,
-				// we let the request continue to consume a concurrency slot
-				// until we can confirm the server is still responding.
+				// if we haven't read any frames from the connection since
+				// sending this request, we let it continue to consume
+				// a concurrency slot until we can confirm the server is
+				// still responding.
 				// We do this by sending a PING frame along with the RST_STREAM
 				// (unless a ping is already in flight).
 				//
@@ -1658,7 +1708,7 @@ func (cs *clientStream) cleanupWriteRequest(err error) {
 				// because it's short lived and will probably be closed before
 				// we get the ping response.
 				ping := false
-				if !closeOnIdle {
+				if !closeOnIdle && !readSinceStream {
 					cc.mu.Lock()
 					// rstStreamPingsBlocked works around a gRPC behavior:
 					// see comment on the field for details.
@@ -1692,6 +1742,7 @@ func (cs *clientStream) cleanupWriteRequest(err error) {
 	}
 
 	close(cs.donec)
+	cc.maybeCallStateHook()
 }
 
 // awaitOpenSlotForStreamLocked waits until len(streams) < maxConcurrentStreams.
@@ -2728,6 +2779,11 @@ func (rl *clientConnReadLoop) endStreamError(cs *clientStream, err error) {
 	cs.abortStream(err)
 }
 
+func (rl *clientConnReadLoop) endStreamErrorLocked(cs *clientStream, err error) {
+	cs.readAborted = true
+	cs.abortStreamLocked(err)
+}
+
 // Constants passed to streamByID for documentation purposes.
 const (
 	headerOrDataFrame    = true
@@ -2744,6 +2800,7 @@ func (rl *clientConnReadLoop) streamByID(id uint32, headerOrData bool) *clientSt
 		// See comment on ClientConn.rstStreamPingsBlocked for details.
 		rl.cc.rstStreamPingsBlocked = false
 	}
+	rl.cc.readBeforeStreamID = rl.cc.nextStreamID
 	cs := rl.cc.streams[id]
 	if cs != nil && !cs.readAborted {
 		return cs
@@ -2794,6 +2851,7 @@ func (rl *clientConnReadLoop) processSettings(f *SettingsFrame) error {
 
 func (rl *clientConnReadLoop) processSettingsNoWrite(f *SettingsFrame) error {
 	cc := rl.cc
+	defer cc.maybeCallStateHook()
 	cc.mu.Lock()
 	defer cc.mu.Unlock()
 
@@ -2893,7 +2951,7 @@ func (rl *clientConnReadLoop) processWindowUpdate(f *WindowUpdateFrame) error {
 	if !fl.add(int32(f.Increment)) {
 		// For stream, the sender sends RST_STREAM with an error code of FLOW_CONTROL_ERROR
 		if cs != nil {
-			rl.endStreamError(cs, StreamError{
+			rl.endStreamErrorLocked(cs, StreamError{
 				StreamID: f.StreamID,
 				Code:     ErrCodeFlowControl,
 			})
@@ -2974,6 +3032,7 @@ func (cc *ClientConn) Ping(ctx context.Context) error {
 func (rl *clientConnReadLoop) processPing(f *PingFrame) error {
 	if f.IsAck() {
 		cc := rl.cc
+		defer cc.maybeCallStateHook()
 		cc.mu.Lock()
 		defer cc.mu.Unlock()
 		// If ack, notify listener if any
@@ -3076,35 +3135,102 @@ type erringRoundTripper struct{ err error }
 func (rt erringRoundTripper) RoundTripErr() error                             { return rt.err }
 func (rt erringRoundTripper) RoundTrip(*http.Request) (*http.Response, error) { return nil, rt.err }
 
+var errConcurrentReadOnResBody = errors.New("http2: concurrent read on response body")
+
 // gzipReader wraps a response body so it can lazily
-// call gzip.NewReader on the first call to Read
+// get gzip.Reader from the pool on the first call to Read.
+// After Close is called it puts gzip.Reader to the pool immediately
+// if there is no Read in progress or later when Read completes.
 type gzipReader struct {
 	_    incomparable
 	body io.ReadCloser // underlying Response.Body
-	zr   *gzip.Reader  // lazily-initialized gzip reader
-	zerr error         // sticky error
+	mu   sync.Mutex    // guards zr and zerr
+	zr   *gzip.Reader  // stores gzip reader from the pool between reads
+	zerr error         // sticky gzip reader init error or sentinel value to detect concurrent read and read after close
+}
+
+type eofReader struct{}
+
+func (eofReader) Read([]byte) (int, error) { return 0, io.EOF }
+func (eofReader) ReadByte() (byte, error)  { return 0, io.EOF }
+
+var gzipPool = sync.Pool{New: func() any { return new(gzip.Reader) }}
+
+// gzipPoolGet gets a gzip.Reader from the pool and resets it to read from r.
+func gzipPoolGet(r io.Reader) (*gzip.Reader, error) {
+	zr := gzipPool.Get().(*gzip.Reader)
+	if err := zr.Reset(r); err != nil {
+		gzipPoolPut(zr)
+		return nil, err
+	}
+	return zr, nil
+}
+
+// gzipPoolPut puts a gzip.Reader back into the pool.
+func gzipPoolPut(zr *gzip.Reader) {
+	// Reset will allocate bufio.Reader if we pass it anything
+	// other than a flate.Reader, so ensure that it's getting one.
+	var r flate.Reader = eofReader{}
+	zr.Reset(r)
+	gzipPool.Put(zr)
+}
+
+// acquire returns a gzip.Reader for reading response body.
+// The reader must be released after use.
+func (gz *gzipReader) acquire() (*gzip.Reader, error) {
+	gz.mu.Lock()
+	defer gz.mu.Unlock()
+	if gz.zerr != nil {
+		return nil, gz.zerr
+	}
+	if gz.zr == nil {
+		gz.zr, gz.zerr = gzipPoolGet(gz.body)
+		if gz.zerr != nil {
+			return nil, gz.zerr
+		}
+	}
+	ret := gz.zr
+	gz.zr, gz.zerr = nil, errConcurrentReadOnResBody
+	return ret, nil
+}
+
+// release returns the gzip.Reader to the pool if Close was called during Read.
+func (gz *gzipReader) release(zr *gzip.Reader) {
+	gz.mu.Lock()
+	defer gz.mu.Unlock()
+	if gz.zerr == errConcurrentReadOnResBody {
+		gz.zr, gz.zerr = zr, nil
+	} else { // fs.ErrClosed
+		gzipPoolPut(zr)
+	}
+}
+
+// close returns the gzip.Reader to the pool immediately or
+// signals release to do so after Read completes.
+func (gz *gzipReader) close() {
+	gz.mu.Lock()
+	defer gz.mu.Unlock()
+	if gz.zerr == nil && gz.zr != nil {
+		gzipPoolPut(gz.zr)
+		gz.zr = nil
+	}
+	gz.zerr = fs.ErrClosed
 }
 
 func (gz *gzipReader) Read(p []byte) (n int, err error) {
-	if gz.zerr != nil {
-		return 0, gz.zerr
+	zr, err := gz.acquire()
+	if err != nil {
+		return 0, err
 	}
-	if gz.zr == nil {
-		gz.zr, err = gzip.NewReader(gz.body)
-		if err != nil {
-			gz.zerr = err
-			return 0, err
-		}
-	}
-	return gz.zr.Read(p)
+	defer gz.release(zr)
+
+	return zr.Read(p)
 }
 
 func (gz *gzipReader) Close() error {
-	if err := gz.body.Close(); err != nil {
-		return err
-	}
-	gz.zerr = fs.ErrClosed
-	return nil
+	gz.close()
+
+	return gz.body.Close()
 }
 
 type errorReader struct{ err error }
@@ -3130,9 +3256,13 @@ func registerHTTPSProtocol(t *http.Transport, rt noDialH2RoundTripper) (err erro
 }
 
 // noDialH2RoundTripper is a RoundTripper which only tries to complete the request
-// if there's already has a cached connection to the host.
+// if there's already a cached connection to the host.
 // (The field is exported so it can be accessed via reflect from net/http; tested
 // by TestNoDialH2RoundTripperType)
+//
+// A noDialH2RoundTripper is registered with http1.Transport.RegisterProtocol,
+// and the http1.Transport can use type assertions to call non-RoundTrip methods on it.
+// This lets us expose, for example, NewClientConn to net/http.
 type noDialH2RoundTripper struct{ *Transport }
 
 func (rt noDialH2RoundTripper) RoundTrip(req *http.Request) (*http.Response, error) {
@@ -3143,6 +3273,85 @@ func (rt noDialH2RoundTripper) RoundTrip(req *http.Request) (*http.Response, err
 	return res, err
 }
 
+func (rt noDialH2RoundTripper) NewClientConn(conn net.Conn, internalStateHook func()) (http.RoundTripper, error) {
+	tr := rt.Transport
+	cc, err := tr.newClientConn(conn, tr.disableKeepAlives(), internalStateHook)
+	if err != nil {
+		return nil, err
+	}
+
+	// RoundTrip should block when the conn is at its concurrency limit,
+	// not return an error. Setting strictMaxConcurrentStreams enables this.
+	cc.strictMaxConcurrentStreams = true
+
+	return netHTTPClientConn{cc}, nil
+}
+
+// netHTTPClientConn wraps ClientConn and implements the interface net/http expects from
+// the RoundTripper returned by NewClientConn.
+type netHTTPClientConn struct {
+	cc *ClientConn
+}
+
+func (cc netHTTPClientConn) RoundTrip(req *http.Request) (*http.Response, error) {
+	return cc.cc.RoundTrip(req)
+}
+
+func (cc netHTTPClientConn) Close() error {
+	return cc.cc.Close()
+}
+
+func (cc netHTTPClientConn) Err() error {
+	cc.cc.mu.Lock()
+	defer cc.cc.mu.Unlock()
+	if cc.cc.closed {
+		return errors.New("connection closed")
+	}
+	return nil
+}
+
+func (cc netHTTPClientConn) Reserve() error {
+	defer cc.cc.maybeCallStateHook()
+	cc.cc.mu.Lock()
+	defer cc.cc.mu.Unlock()
+	if !cc.cc.canReserveLocked() {
+		return errors.New("connection is unavailable")
+	}
+	cc.cc.streamsReserved++
+	return nil
+}
+
+func (cc netHTTPClientConn) Release() {
+	defer cc.cc.maybeCallStateHook()
+	cc.cc.mu.Lock()
+	defer cc.cc.mu.Unlock()
+	// We don't complain if streamsReserved is 0.
+	//
+	// This is consistent with RoundTrip: both Release and RoundTrip will
+	// consume a reservation iff one exists.
+	if cc.cc.streamsReserved > 0 {
+		cc.cc.streamsReserved--
+	}
+}
+
+func (cc netHTTPClientConn) Available() int {
+	cc.cc.mu.Lock()
+	defer cc.cc.mu.Unlock()
+	return cc.cc.availableLocked()
+}
+
+func (cc netHTTPClientConn) InFlight() int {
+	cc.cc.mu.Lock()
+	defer cc.cc.mu.Unlock()
+	return cc.cc.currentRequestCountLocked()
+}
+
+func (cc *ClientConn) maybeCallStateHook() {
+	if cc.internalStateHook != nil {
+		cc.internalStateHook()
+	}
+}
+
 func (t *Transport) idleConnTimeout() time.Duration {
 	// to keep things backwards compatible, we use non-zero values of
 	// IdleConnTimeout, followed by using the IdleConnTimeout on the underlying

backend/vendor/golang.org/x/net/http2/writesched.go

@@ -185,45 +185,75 @@ func (wr *FrameWriteRequest) replyToWriter(err error) {
 }
 
 // writeQueue is used by implementations of WriteScheduler.
+//
+// Each writeQueue contains a queue of FrameWriteRequests, meant to store all
+// FrameWriteRequests associated with a given stream. This is implemented as a
+// two-stage queue: currQueue[currPos:] and nextQueue. Removing an item is done
+// by incrementing currPos of currQueue. Adding an item is done by appending it
+// to the nextQueue. If currQueue is empty when trying to remove an item, we
+// can swap currQueue and nextQueue to remedy the situation.
+// This two-stage queue is analogous to the use of two lists in Okasaki's
+// purely functional queue but without the overhead of reversing the list when
+// swapping stages.
+//
+// writeQueue also contains prev and next, this can be used by implementations
+// of WriteScheduler to construct data structures that represent the order of
+// writing between different streams (e.g. circular linked list).
 type writeQueue struct {
-	s          []FrameWriteRequest
+	currQueue []FrameWriteRequest
+	nextQueue []FrameWriteRequest
+	currPos   int
+
 	prev, next *writeQueue
 }
 
-func (q *writeQueue) empty() bool { return len(q.s) == 0 }
+func (q *writeQueue) empty() bool {
+	return (len(q.currQueue) - q.currPos + len(q.nextQueue)) == 0
+}
 
 func (q *writeQueue) push(wr FrameWriteRequest) {
-	q.s = append(q.s, wr)
+	q.nextQueue = append(q.nextQueue, wr)
 }
 
 func (q *writeQueue) shift() FrameWriteRequest {
-	if len(q.s) == 0 {
+	if q.empty() {
 		panic("invalid use of queue")
 	}
-	wr := q.s[0]
-	// TODO: less copy-happy queue.
-	copy(q.s, q.s[1:])
-	q.s[len(q.s)-1] = FrameWriteRequest{}
-	q.s = q.s[:len(q.s)-1]
+	if q.currPos >= len(q.currQueue) {
+		q.currQueue, q.currPos, q.nextQueue = q.nextQueue, 0, q.currQueue[:0]
+	}
+	wr := q.currQueue[q.currPos]
+	q.currQueue[q.currPos] = FrameWriteRequest{}
+	q.currPos++
 	return wr
 }
 
+func (q *writeQueue) peek() *FrameWriteRequest {
+	if q.currPos < len(q.currQueue) {
+		return &q.currQueue[q.currPos]
+	}
+	if len(q.nextQueue) > 0 {
+		return &q.nextQueue[0]
+	}
+	return nil
+}
+
 // consume consumes up to n bytes from q.s[0]. If the frame is
 // entirely consumed, it is removed from the queue. If the frame
 // is partially consumed, the frame is kept with the consumed
 // bytes removed. Returns true iff any bytes were consumed.
 func (q *writeQueue) consume(n int32) (FrameWriteRequest, bool) {
-	if len(q.s) == 0 {
+	if q.empty() {
 		return FrameWriteRequest{}, false
 	}
-	consumed, rest, numresult := q.s[0].Consume(n)
+	consumed, rest, numresult := q.peek().Consume(n)
 	switch numresult {
 	case 0:
 		return FrameWriteRequest{}, false
 	case 1:
 		q.shift()
 	case 2:
-		q.s[0] = rest
+		*q.peek() = rest
 	}
 	return consumed, true
 }
@@ -232,10 +262,15 @@ type writeQueuePool []*writeQueue
 
 // put inserts an unused writeQueue into the pool.
 func (p *writeQueuePool) put(q *writeQueue) {
-	for i := range q.s {
-		q.s[i] = FrameWriteRequest{}
+	for i := range q.currQueue {
+		q.currQueue[i] = FrameWriteRequest{}
 	}
-	q.s = q.s[:0]
+	for i := range q.nextQueue {
+		q.nextQueue[i] = FrameWriteRequest{}
+	}
+	q.currQueue = q.currQueue[:0]
+	q.nextQueue = q.nextQueue[:0]
+	q.currPos = 0
 	*p = append(*p, q)
 }
 

backend/vendor/golang.org/x/net/http2/writesched_priority_rfc7540.go

@@ -56,6 +56,10 @@ type PriorityWriteSchedulerConfig struct {
 // frames by following HTTP/2 priorities as described in RFC 7540 Section 5.3.
 // If cfg is nil, default options are used.
 func NewPriorityWriteScheduler(cfg *PriorityWriteSchedulerConfig) WriteScheduler {
+	return newPriorityWriteSchedulerRFC7540(cfg)
+}
+
+func newPriorityWriteSchedulerRFC7540(cfg *PriorityWriteSchedulerConfig) WriteScheduler {
 	if cfg == nil {
 		// For justification of these defaults, see:
 		// https://docs.google.com/document/d/1oLhNg1skaWD4_DtaoCxdSRN5erEXrH-KnLrMwEpOtFY
@@ -214,8 +218,8 @@ func (z sortPriorityNodeSiblingsRFC7540) Swap(i, k int) { z[i], z[k] = z[k], z[i
 func (z sortPriorityNodeSiblingsRFC7540) Less(i, k int) bool {
 	// Prefer the subtree that has sent fewer bytes relative to its weight.
 	// See sections 5.3.2 and 5.3.4.
-	wi, bi := float64(z[i].weight+1), float64(z[i].subtreeBytes)
-	wk, bk := float64(z[k].weight+1), float64(z[k].subtreeBytes)
+	wi, bi := float64(z[i].weight)+1, float64(z[i].subtreeBytes)
+	wk, bk := float64(z[k].weight)+1, float64(z[k].subtreeBytes)
 	if bi == 0 && bk == 0 {
 		return wi >= wk
 	}
@@ -302,7 +306,6 @@ func (ws *priorityWriteSchedulerRFC7540) CloseStream(streamID uint32) {
 
 	q := n.q
 	ws.queuePool.put(&q)
-	n.q.s = nil
 	if ws.maxClosedNodesInTree > 0 {
 		ws.addClosedOrIdleNode(&ws.closedNodes, ws.maxClosedNodesInTree, n)
 	} else {

backend/vendor/golang.org/x/net/http2/writesched_priority_rfc9218.go

@@ -37,9 +37,18 @@ type priorityWriteSchedulerRFC9218 struct {
 	// incremental streams or not, when urgency is the same in a given Pop()
 	// call.
 	prioritizeIncremental bool
+
+	// priorityUpdateBuf is used to buffer the most recent PRIORITY_UPDATE we
+	// receive per https://www.rfc-editor.org/rfc/rfc9218.html#name-the-priority_update-frame.
+	priorityUpdateBuf struct {
+		// streamID being 0 means that the buffer is empty. This is a safe
+		// assumption as PRIORITY_UPDATE for stream 0 is a PROTOCOL_ERROR.
+		streamID uint32
+		priority PriorityParam
+	}
 }
 
-func newPriorityWriteSchedulerRFC9128() WriteScheduler {
+func newPriorityWriteSchedulerRFC9218() WriteScheduler {
 	ws := &priorityWriteSchedulerRFC9218{
 		streams: make(map[uint32]streamMetadata),
 	}
@@ -50,6 +59,10 @@ func (ws *priorityWriteSchedulerRFC9218) OpenStream(streamID uint32, opt OpenStr
 	if ws.streams[streamID].location != nil {
 		panic(fmt.Errorf("stream %d already opened", streamID))
 	}
+	if streamID == ws.priorityUpdateBuf.streamID {
+		ws.priorityUpdateBuf.streamID = 0
+		opt.priority = ws.priorityUpdateBuf.priority
+	}
 	q := ws.queuePool.get()
 	ws.streams[streamID] = streamMetadata{
 		location: q,
@@ -95,6 +108,8 @@ func (ws *priorityWriteSchedulerRFC9218) AdjustStream(streamID uint32, priority
 	metadata := ws.streams[streamID]
 	q, u, i := metadata.location, metadata.priority.urgency, metadata.priority.incremental
 	if q == nil {
+		ws.priorityUpdateBuf.streamID = streamID
+		ws.priorityUpdateBuf.priority = priority
 		return
 	}
 

backend/vendor/golang.org/x/net/internal/httpsfv/httpsfv.go

@@ -0,0 +1,665 @@
+// Copyright 2025 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Package httpsfv provides functionality for dealing with HTTP Structured
+// Field Values.
+package httpsfv
+
+import (
+	"slices"
+	"strconv"
+	"strings"
+	"time"
+	"unicode/utf8"
+)
+
+func isLCAlpha(b byte) bool {
+	return (b >= 'a' && b <= 'z')
+}
+
+func isAlpha(b byte) bool {
+	return isLCAlpha(b) || (b >= 'A' && b <= 'Z')
+}
+
+func isDigit(b byte) bool {
+	return b >= '0' && b <= '9'
+}
+
+func isVChar(b byte) bool {
+	return b >= 0x21 && b <= 0x7e
+}
+
+func isSP(b byte) bool {
+	return b == 0x20
+}
+
+func isTChar(b byte) bool {
+	if isAlpha(b) || isDigit(b) {
+		return true
+	}
+	return slices.Contains([]byte{'!', '#', '$', '%', '&', '\'', '*', '+', '-', '.', '^', '_', '`', '|', '~'}, b)
+}
+
+func countLeftWhitespace(s string) int {
+	i := 0
+	for _, ch := range []byte(s) {
+		if ch != ' ' && ch != '\t' {
+			break
+		}
+		i++
+	}
+	return i
+}
+
+// https://www.rfc-editor.org/rfc/rfc4648#section-8.
+func decOctetHex(ch1, ch2 byte) (ch byte, ok bool) {
+	decBase16 := func(in byte) (out byte, ok bool) {
+		if !isDigit(in) && !(in >= 'a' && in <= 'f') {
+			return 0, false
+		}
+		if isDigit(in) {
+			return in - '0', true
+		}
+		return in - 'a' + 10, true
+	}
+
+	if ch1, ok = decBase16(ch1); !ok {
+		return 0, ok
+	}
+	if ch2, ok = decBase16(ch2); !ok {
+		return 0, ok
+	}
+	return ch1<<4 | ch2, true
+}
+
+// ParseList parses a list from a given HTTP Structured Field Values.
+//
+// Given an HTTP SFV string that represents a list, it will call the given
+// function using each of the members and parameters contained in the list.
+// This allows the caller to extract information out of the list.
+//
+// This function will return once it encounters the end of the string, or
+// something that is not a list. If it cannot consume the entire given
+// string, the ok value returned will be false.
+//
+// https://www.rfc-editor.org/rfc/rfc9651.html#name-parsing-a-list.
+func ParseList(s string, f func(member, param string)) (ok bool) {
+	for len(s) != 0 {
+		var member, param string
+		if len(s) != 0 && s[0] == '(' {
+			if member, s, ok = consumeBareInnerList(s, nil); !ok {
+				return ok
+			}
+		} else {
+			if member, s, ok = consumeBareItem(s); !ok {
+				return ok
+			}
+		}
+		if param, s, ok = consumeParameter(s, nil); !ok {
+			return ok
+		}
+		if f != nil {
+			f(member, param)
+		}
+
+		s = s[countLeftWhitespace(s):]
+		if len(s) == 0 {
+			break
+		}
+		if s[0] != ',' {
+			return false
+		}
+		s = s[1:]
+		s = s[countLeftWhitespace(s):]
+		if len(s) == 0 {
+			return false
+		}
+	}
+	return true
+}
+
+// consumeBareInnerList consumes an inner list
+// (https://www.rfc-editor.org/rfc/rfc9651.html#name-parsing-an-inner-list),
+// except for the inner list's top-most parameter.
+// For example, given `(a;b c;d);e`, it will consume only `(a;b c;d)`.
+func consumeBareInnerList(s string, f func(bareItem, param string)) (consumed, rest string, ok bool) {
+	if len(s) == 0 || s[0] != '(' {
+		return "", s, false
+	}
+	rest = s[1:]
+	for len(rest) != 0 {
+		var bareItem, param string
+		rest = rest[countLeftWhitespace(rest):]
+		if len(rest) != 0 && rest[0] == ')' {
+			rest = rest[1:]
+			break
+		}
+		if bareItem, rest, ok = consumeBareItem(rest); !ok {
+			return "", s, ok
+		}
+		if param, rest, ok = consumeParameter(rest, nil); !ok {
+			return "", s, ok
+		}
+		if len(rest) == 0 || (rest[0] != ')' && !isSP(rest[0])) {
+			return "", s, false
+		}
+		if f != nil {
+			f(bareItem, param)
+		}
+	}
+	return s[:len(s)-len(rest)], rest, true
+}
+
+// ParseBareInnerList parses a bare inner list from a given HTTP Structured
+// Field Values.
+//
+// We define a bare inner list as an inner list
+// (https://www.rfc-editor.org/rfc/rfc9651.html#name-parsing-an-inner-list),
+// without the top-most parameter of the inner list. For example, given the
+// inner list `(a;b c;d);e`, the bare inner list would be `(a;b c;d)`.
+//
+// Given an HTTP SFV string that represents a bare inner list, it will call the
+// given function using each of the bare item and parameter within the bare
+// inner list. This allows the caller to extract information out of the bare
+// inner list.
+//
+// This function will return once it encounters the end of the bare inner list,
+// or something that is not a bare inner list. If it cannot consume the entire
+// given string, the ok value returned will be false.
+func ParseBareInnerList(s string, f func(bareItem, param string)) (ok bool) {
+	_, rest, ok := consumeBareInnerList(s, f)
+	return rest == "" && ok
+}
+
+// https://www.rfc-editor.org/rfc/rfc9651.html#name-parsing-an-item.
+func consumeItem(s string, f func(bareItem, param string)) (consumed, rest string, ok bool) {
+	var bareItem, param string
+	if bareItem, rest, ok = consumeBareItem(s); !ok {
+		return "", s, ok
+	}
+	if param, rest, ok = consumeParameter(rest, nil); !ok {
+		return "", s, ok
+	}
+	if f != nil {
+		f(bareItem, param)
+	}
+	return s[:len(s)-len(rest)], rest, true
+}
+
+// ParseItem parses an item from a given HTTP Structured Field Values.
+//
+// Given an HTTP SFV string that represents an item, it will call the given
+// function once, with the bare item and the parameter of the item. This allows
+// the caller to extract information out of the item.
+//
+// This function will return once it encounters the end of the string, or
+// something that is not an item. If it cannot consume the entire given
+// string, the ok value returned will be false.
+//
+// https://www.rfc-editor.org/rfc/rfc9651.html#name-parsing-an-item.
+func ParseItem(s string, f func(bareItem, param string)) (ok bool) {
+	_, rest, ok := consumeItem(s, f)
+	return rest == "" && ok
+}
+
+// ParseDictionary parses a dictionary from a given HTTP Structured Field
+// Values.
+//
+// Given an HTTP SFV string that represents a dictionary, it will call the
+// given function using each of the keys, values, and parameters contained in
+// the dictionary. This allows the caller to extract information out of the
+// dictionary.
+//
+// This function will return once it encounters the end of the string, or
+// something that is not a dictionary. If it cannot consume the entire given
+// string, the ok value returned will be false.
+//
+// https://www.rfc-editor.org/rfc/rfc9651.html#name-parsing-a-dictionary.
+func ParseDictionary(s string, f func(key, val, param string)) (ok bool) {
+	for len(s) != 0 {
+		var key, val, param string
+		val = "?1" // Default value for empty val is boolean true.
+		if key, s, ok = consumeKey(s); !ok {
+			return ok
+		}
+		if len(s) != 0 && s[0] == '=' {
+			s = s[1:]
+			if len(s) != 0 && s[0] == '(' {
+				if val, s, ok = consumeBareInnerList(s, nil); !ok {
+					return ok
+				}
+			} else {
+				if val, s, ok = consumeBareItem(s); !ok {
+					return ok
+				}
+			}
+		}
+		if param, s, ok = consumeParameter(s, nil); !ok {
+			return ok
+		}
+		if f != nil {
+			f(key, val, param)
+		}
+		s = s[countLeftWhitespace(s):]
+		if len(s) == 0 {
+			break
+		}
+		if s[0] == ',' {
+			s = s[1:]
+		}
+		s = s[countLeftWhitespace(s):]
+		if len(s) == 0 {
+			return false
+		}
+	}
+	return true
+}
+
+// https://www.rfc-editor.org/rfc/rfc9651.html#parse-param.
+func consumeParameter(s string, f func(key, val string)) (consumed, rest string, ok bool) {
+	rest = s
+	for len(rest) != 0 {
+		var key, val string
+		val = "?1" // Default value for empty val is boolean true.
+		if rest[0] != ';' {
+			break
+		}
+		rest = rest[1:]
+		rest = rest[countLeftWhitespace(rest):]
+		key, rest, ok = consumeKey(rest)
+		if !ok {
+			return "", s, ok
+		}
+		if len(rest) != 0 && rest[0] == '=' {
+			rest = rest[1:]
+			val, rest, ok = consumeBareItem(rest)
+			if !ok {
+				return "", s, ok
+			}
+		}
+		if f != nil {
+			f(key, val)
+		}
+	}
+	return s[:len(s)-len(rest)], rest, true
+}
+
+// ParseParameter parses a parameter from a given HTTP Structured Field Values.
+//
+// Given an HTTP SFV string that represents a parameter, it will call the given
+// function using each of the keys and values contained in the parameter. This
+// allows the caller to extract information out of the parameter.
+//
+// This function will return once it encounters the end of the string, or
+// something that is not a parameter. If it cannot consume the entire given
+// string, the ok value returned will be false.
+//
+// https://www.rfc-editor.org/rfc/rfc9651.html#parse-param.
+func ParseParameter(s string, f func(key, val string)) (ok bool) {
+	_, rest, ok := consumeParameter(s, f)
+	return rest == "" && ok
+}
+
+// https://www.rfc-editor.org/rfc/rfc9651.html#name-parsing-a-key.
+func consumeKey(s string) (consumed, rest string, ok bool) {
+	if len(s) == 0 || (!isLCAlpha(s[0]) && s[0] != '*') {
+		return "", s, false
+	}
+	i := 0
+	for _, ch := range []byte(s) {
+		if !isLCAlpha(ch) && !isDigit(ch) && !slices.Contains([]byte("_-.*"), ch) {
+			break
+		}
+		i++
+	}
+	return s[:i], s[i:], true
+}
+
+// https://www.rfc-editor.org/rfc/rfc9651.html#name-parsing-an-integer-or-decim.
+func consumeIntegerOrDecimal(s string) (consumed, rest string, ok bool) {
+	var i, signOffset, periodIndex int
+	var isDecimal bool
+	if i < len(s) && s[i] == '-' {
+		i++
+		signOffset++
+	}
+	if i >= len(s) {
+		return "", s, false
+	}
+	if !isDigit(s[i]) {
+		return "", s, false
+	}
+	for i < len(s) {
+		ch := s[i]
+		if isDigit(ch) {
+			i++
+			continue
+		}
+		if !isDecimal && ch == '.' {
+			if i-signOffset > 12 {
+				return "", s, false
+			}
+			periodIndex = i
+			isDecimal = true
+			i++
+			continue
+		}
+		break
+	}
+	if !isDecimal && i-signOffset > 15 {
+		return "", s, false
+	}
+	if isDecimal {
+		if i-signOffset > 16 {
+			return "", s, false
+		}
+		if s[i-1] == '.' {
+			return "", s, false
+		}
+		if i-periodIndex-1 > 3 {
+			return "", s, false
+		}
+	}
+	return s[:i], s[i:], true
+}
+
+// ParseInteger parses an integer from a given HTTP Structured Field Values.
+//
+// The entire HTTP SFV string must consist of a valid integer. It returns the
+// parsed integer and an ok boolean value, indicating success or not.
+//
+// https://www.rfc-editor.org/rfc/rfc9651.html#name-parsing-an-integer-or-decim.
+func ParseInteger(s string) (parsed int64, ok bool) {
+	if _, rest, ok := consumeIntegerOrDecimal(s); !ok || rest != "" {
+		return 0, false
+	}
+	if n, err := strconv.ParseInt(s, 10, 64); err == nil {
+		return n, true
+	}
+	return 0, false
+}
+
+// ParseDecimal parses a decimal from a given HTTP Structured Field Values.
+//
+// The entire HTTP SFV string must consist of a valid decimal. It returns the
+// parsed decimal and an ok boolean value, indicating success or not.
+//
+// https://www.rfc-editor.org/rfc/rfc9651.html#name-parsing-an-integer-or-decim.
+func ParseDecimal(s string) (parsed float64, ok bool) {
+	if _, rest, ok := consumeIntegerOrDecimal(s); !ok || rest != "" {
+		return 0, false
+	}
+	if !strings.Contains(s, ".") {
+		return 0, false
+	}
+	if n, err := strconv.ParseFloat(s, 64); err == nil {
+		return n, true
+	}
+	return 0, false
+}
+
+// https://www.rfc-editor.org/rfc/rfc9651.html#name-parsing-a-string.
+func consumeString(s string) (consumed, rest string, ok bool) {
+	if len(s) == 0 || s[0] != '"' {
+		return "", s, false
+	}
+	for i := 1; i < len(s); i++ {
+		switch ch := s[i]; ch {
+		case '\\':
+			if i+1 >= len(s) {
+				return "", s, false
+			}
+			i++
+			if ch = s[i]; ch != '"' && ch != '\\' {
+				return "", s, false
+			}
+		case '"':
+			return s[:i+1], s[i+1:], true
+		default:
+			if !isVChar(ch) && !isSP(ch) {
+				return "", s, false
+			}
+		}
+	}
+	return "", s, false
+}
+
+// ParseString parses a Go string from a given HTTP Structured Field Values.
+//
+// The entire HTTP SFV string must consist of a valid string. It returns the
+// parsed string and an ok boolean value, indicating success or not.
+//
+// https://www.rfc-editor.org/rfc/rfc9651.html#name-parsing-a-string.
+func ParseString(s string) (parsed string, ok bool) {
+	if _, rest, ok := consumeString(s); !ok || rest != "" {
+		return "", false
+	}
+	return s[1 : len(s)-1], true
+}
+
+// https://www.rfc-editor.org/rfc/rfc9651.html#name-parsing-a-token
+func consumeToken(s string) (consumed, rest string, ok bool) {
+	if len(s) == 0 || (!isAlpha(s[0]) && s[0] != '*') {
+		return "", s, false
+	}
+	i := 0
+	for _, ch := range []byte(s) {
+		if !isTChar(ch) && !slices.Contains([]byte(":/"), ch) {
+			break
+		}
+		i++
+	}
+	return s[:i], s[i:], true
+}
+
+// ParseToken parses a token from a given HTTP Structured Field Values.
+//
+// The entire HTTP SFV string must consist of a valid token. It returns the
+// parsed token and an ok boolean value, indicating success or not.
+//
+// https://www.rfc-editor.org/rfc/rfc9651.html#name-parsing-a-token
+func ParseToken(s string) (parsed string, ok bool) {
+	if _, rest, ok := consumeToken(s); !ok || rest != "" {
+		return "", false
+	}
+	return s, true
+}
+
+// https://www.rfc-editor.org/rfc/rfc9651.html#name-parsing-a-byte-sequence.
+func consumeByteSequence(s string) (consumed, rest string, ok bool) {
+	if len(s) == 0 || s[0] != ':' {
+		return "", s, false
+	}
+	for i := 1; i < len(s); i++ {
+		if ch := s[i]; ch == ':' {
+			return s[:i+1], s[i+1:], true
+		}
+		if ch := s[i]; !isAlpha(ch) && !isDigit(ch) && !slices.Contains([]byte("+/="), ch) {
+			return "", s, false
+		}
+	}
+	return "", s, false
+}
+
+// ParseByteSequence parses a byte sequence from a given HTTP Structured Field
+// Values.
+//
+// The entire HTTP SFV string must consist of a valid byte sequence. It returns
+// the parsed byte sequence and an ok boolean value, indicating success or not.
+//
+// https://www.rfc-editor.org/rfc/rfc9651.html#name-parsing-a-byte-sequence.
+func ParseByteSequence(s string) (parsed []byte, ok bool) {
+	if _, rest, ok := consumeByteSequence(s); !ok || rest != "" {
+		return nil, false
+	}
+	return []byte(s[1 : len(s)-1]), true
+}
+
+// https://www.rfc-editor.org/rfc/rfc9651.html#name-parsing-a-boolean.
+func consumeBoolean(s string) (consumed, rest string, ok bool) {
+	if len(s) >= 2 && (s[:2] == "?0" || s[:2] == "?1") {
+		return s[:2], s[2:], true
+	}
+	return "", s, false
+}
+
+// ParseBoolean parses a boolean from a given HTTP Structured Field Values.
+//
+// The entire HTTP SFV string must consist of a valid boolean. It returns the
+// parsed boolean and an ok boolean value, indicating success or not.
+//
+// https://www.rfc-editor.org/rfc/rfc9651.html#name-parsing-a-boolean.
+func ParseBoolean(s string) (parsed bool, ok bool) {
+	if _, rest, ok := consumeBoolean(s); !ok || rest != "" {
+		return false, false
+	}
+	return s == "?1", true
+}
+
+// https://www.rfc-editor.org/rfc/rfc9651.html#name-parsing-a-date.
+func consumeDate(s string) (consumed, rest string, ok bool) {
+	if len(s) == 0 || s[0] != '@' {
+		return "", s, false
+	}
+	if _, rest, ok = consumeIntegerOrDecimal(s[1:]); !ok {
+		return "", s, ok
+	}
+	consumed = s[:len(s)-len(rest)]
+	if slices.Contains([]byte(consumed), '.') {
+		return "", s, false
+	}
+	return consumed, rest, ok
+}
+
+// ParseDate parses a date from a given HTTP Structured Field Values.
+//
+// The entire HTTP SFV string must consist of a valid date. It returns the
+// parsed date and an ok boolean value, indicating success or not.
+//
+// https://www.rfc-editor.org/rfc/rfc9651.html#name-parsing-a-date.
+func ParseDate(s string) (parsed time.Time, ok bool) {
+	if _, rest, ok := consumeDate(s); !ok || rest != "" {
+		return time.Time{}, false
+	}
+	if n, ok := ParseInteger(s[1:]); !ok {
+		return time.Time{}, false
+	} else {
+		return time.Unix(n, 0), true
+	}
+}
+
+// https://www.rfc-editor.org/rfc/rfc9651.html#name-parsing-a-display-string.
+func consumeDisplayString(s string) (consumed, rest string, ok bool) {
+	// To prevent excessive allocation, especially when input is large, we
+	// maintain a buffer of 4 bytes to keep track of the last rune we
+	// encounter. This way, we can validate that the display string conforms to
+	// UTF-8 without actually building the whole string.
+	var lastRune [4]byte
+	var runeLen int
+	isPartOfValidRune := func(ch byte) bool {
+		lastRune[runeLen] = ch
+		runeLen++
+		if utf8.FullRune(lastRune[:runeLen]) {
+			r, s := utf8.DecodeRune(lastRune[:runeLen])
+			if r == utf8.RuneError {
+				return false
+			}
+			copy(lastRune[:], lastRune[s:runeLen])
+			runeLen -= s
+			return true
+		}
+		return runeLen <= 4
+	}
+
+	if len(s) <= 1 || s[:2] != `%"` {
+		return "", s, false
+	}
+	i := 2
+	for i < len(s) {
+		ch := s[i]
+		if !isVChar(ch) && !isSP(ch) {
+			return "", s, false
+		}
+		switch ch {
+		case '"':
+			if runeLen > 0 {
+				return "", s, false
+			}
+			return s[:i+1], s[i+1:], true
+		case '%':
+			if i+2 >= len(s) {
+				return "", s, false
+			}
+			if ch, ok = decOctetHex(s[i+1], s[i+2]); !ok {
+				return "", s, ok
+			}
+			if ok = isPartOfValidRune(ch); !ok {
+				return "", s, ok
+			}
+			i += 3
+		default:
+			if ok = isPartOfValidRune(ch); !ok {
+				return "", s, ok
+			}
+			i++
+		}
+	}
+	return "", s, false
+}
+
+// ParseDisplayString parses a display string from a given HTTP Structured
+// Field Values.
+//
+// The entire HTTP SFV string must consist of a valid display string. It
+// returns the parsed display string and an ok boolean value, indicating
+// success or not.
+//
+// https://www.rfc-editor.org/rfc/rfc9651.html#name-parsing-a-display-string.
+func ParseDisplayString(s string) (parsed string, ok bool) {
+	if _, rest, ok := consumeDisplayString(s); !ok || rest != "" {
+		return "", false
+	}
+	// consumeDisplayString() already validates that we have a valid display
+	// string. Therefore, we can just construct the display string, without
+	// validating it again.
+	s = s[2 : len(s)-1]
+	var b strings.Builder
+	for i := 0; i < len(s); {
+		if s[i] == '%' {
+			decoded, _ := decOctetHex(s[i+1], s[i+2])
+			b.WriteByte(decoded)
+			i += 3
+			continue
+		}
+		b.WriteByte(s[i])
+		i++
+	}
+	return b.String(), true
+}
+
+// https://www.rfc-editor.org/rfc/rfc9651.html#parse-bare-item.
+func consumeBareItem(s string) (consumed, rest string, ok bool) {
+	if len(s) == 0 {
+		return "", s, false
+	}
+	ch := s[0]
+	switch {
+	case ch == '-' || isDigit(ch):
+		return consumeIntegerOrDecimal(s)
+	case ch == '"':
+		return consumeString(s)
+	case ch == '*' || isAlpha(ch):
+		return consumeToken(s)
+	case ch == ':':
+		return consumeByteSequence(s)
+	case ch == '?':
+		return consumeBoolean(s)
+	case ch == '@':
+		return consumeDate(s)
+	case ch == '%':
+		return consumeDisplayString(s)
+	default:
+		return "", s, false
+	}
+}

backend/vendor/golang.org/x/net/internal/socket/empty.s

@@ -2,6 +2,6 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-//go:build darwin && go1.12
+//go:build darwin
 
 // This exists solely so we can linkname in symbols from syscall.

backend/vendor/golang.org/x/net/internal/socket/msghdr_solaris_64bit.go

@@ -6,7 +6,10 @@
 
 package socket
 
-import "unsafe"
+import (
+	"encoding/binary"
+	"unsafe"
+)
 
 func (h *msghdr) pack(vs []iovec, bs [][]byte, oob []byte, sa []byte) {
 	for i := range vs {
@@ -31,5 +34,5 @@ func (h *msghdr) controllen() int {
 }
 
 func (h *msghdr) flags() int {
-	return int(NativeEndian.Uint32(h.Pad_cgo_2[:]))
+	return int(binary.NativeEndian.Uint32(h.Pad_cgo_2[:]))
 }

backend/vendor/golang.org/x/net/internal/socket/socket.go

@@ -7,6 +7,7 @@
 package socket // import "golang.org/x/net/internal/socket"
 
 import (
+	"encoding/binary"
 	"errors"
 	"net"
 	"runtime"
@@ -58,7 +59,7 @@ func (o *Option) GetInt(c *Conn) (int, error) {
 	if o.Len == 1 {
 		return int(b[0]), nil
 	}
-	return int(NativeEndian.Uint32(b[:4])), nil
+	return int(binary.NativeEndian.Uint32(b[:4])), nil
 }
 
 // Set writes the option and value to the kernel.
@@ -84,7 +85,7 @@ func (o *Option) SetInt(c *Conn, v int) error {
 		b = []byte{byte(v)}
 	} else {
 		var bb [4]byte
-		NativeEndian.PutUint32(bb[:o.Len], uint32(v))
+		binary.NativeEndian.PutUint32(bb[:o.Len], uint32(v))
 		b = bb[:4]
 	}
 	return o.set(c, b)

backend/vendor/golang.org/x/net/internal/socket/sys.go

@@ -1,23 +0,0 @@
-// Copyright 2017 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package socket
-
-import (
-	"encoding/binary"
-	"unsafe"
-)
-
-// NativeEndian is the machine native endian implementation of ByteOrder.
-var NativeEndian binary.ByteOrder
-
-func init() {
-	i := uint32(1)
-	b := (*[4]byte)(unsafe.Pointer(&i))
-	if b[0] == 1 {
-		NativeEndian = binary.LittleEndian
-	} else {
-		NativeEndian = binary.BigEndian
-	}
-}

backend/vendor/golang.org/x/net/internal/socket/sys_posix.go

@@ -36,7 +36,7 @@ func marshalSockaddr(ip net.IP, port int, zone string, b []byte) int {
 	if ip4 := ip.To4(); ip4 != nil {
 		switch runtime.GOOS {
 		case "android", "illumos", "linux", "solaris", "windows":
-			NativeEndian.PutUint16(b[:2], uint16(sysAF_INET))
+			binary.NativeEndian.PutUint16(b[:2], uint16(sysAF_INET))
 		default:
 			b[0] = sizeofSockaddrInet4
 			b[1] = sysAF_INET
@@ -48,7 +48,7 @@ func marshalSockaddr(ip net.IP, port int, zone string, b []byte) int {
 	if ip6 := ip.To16(); ip6 != nil && ip.To4() == nil {
 		switch runtime.GOOS {
 		case "android", "illumos", "linux", "solaris", "windows":
-			NativeEndian.PutUint16(b[:2], uint16(sysAF_INET6))
+			binary.NativeEndian.PutUint16(b[:2], uint16(sysAF_INET6))
 		default:
 			b[0] = sizeofSockaddrInet6
 			b[1] = sysAF_INET6
@@ -56,7 +56,7 @@ func marshalSockaddr(ip net.IP, port int, zone string, b []byte) int {
 		binary.BigEndian.PutUint16(b[2:4], uint16(port))
 		copy(b[8:24], ip6)
 		if zone != "" {
-			NativeEndian.PutUint32(b[24:28], uint32(zoneCache.index(zone)))
+			binary.NativeEndian.PutUint32(b[24:28], uint32(zoneCache.index(zone)))
 		}
 		return sizeofSockaddrInet6
 	}
@@ -70,7 +70,7 @@ func parseInetAddr(b []byte, network string) (net.Addr, error) {
 	var af int
 	switch runtime.GOOS {
 	case "android", "illumos", "linux", "solaris", "windows":
-		af = int(NativeEndian.Uint16(b[:2]))
+		af = int(binary.NativeEndian.Uint16(b[:2]))
 	default:
 		af = int(b[1])
 	}
@@ -89,7 +89,7 @@ func parseInetAddr(b []byte, network string) (net.Addr, error) {
 		}
 		ip = make(net.IP, net.IPv6len)
 		copy(ip, b[8:24])
-		if id := int(NativeEndian.Uint32(b[24:28])); id > 0 {
+		if id := int(binary.NativeEndian.Uint32(b[24:28])); id > 0 {
 			zone = zoneCache.name(id)
 		}
 	}

backend/vendor/golang.org/x/net/ipv4/header.go

@@ -9,8 +9,6 @@ import (
 	"fmt"
 	"net"
 	"runtime"
-
-	"golang.org/x/net/internal/socket"
 )
 
 const (
@@ -68,12 +66,12 @@ func (h *Header) Marshal() ([]byte, error) {
 	flagsAndFragOff := (h.FragOff & 0x1fff) | int(h.Flags<<13)
 	switch runtime.GOOS {
 	case "darwin", "ios", "dragonfly", "netbsd":
-		socket.NativeEndian.PutUint16(b[2:4], uint16(h.TotalLen))
-		socket.NativeEndian.PutUint16(b[6:8], uint16(flagsAndFragOff))
+		binary.NativeEndian.PutUint16(b[2:4], uint16(h.TotalLen))
+		binary.NativeEndian.PutUint16(b[6:8], uint16(flagsAndFragOff))
 	case "freebsd":
 		if freebsdVersion < 1100000 {
-			socket.NativeEndian.PutUint16(b[2:4], uint16(h.TotalLen))
-			socket.NativeEndian.PutUint16(b[6:8], uint16(flagsAndFragOff))
+			binary.NativeEndian.PutUint16(b[2:4], uint16(h.TotalLen))
+			binary.NativeEndian.PutUint16(b[6:8], uint16(flagsAndFragOff))
 		} else {
 			binary.BigEndian.PutUint16(b[2:4], uint16(h.TotalLen))
 			binary.BigEndian.PutUint16(b[6:8], uint16(flagsAndFragOff))
@@ -127,15 +125,15 @@ func (h *Header) Parse(b []byte) error {
 	h.Dst = net.IPv4(b[16], b[17], b[18], b[19])
 	switch runtime.GOOS {
 	case "darwin", "ios", "dragonfly", "netbsd":
-		h.TotalLen = int(socket.NativeEndian.Uint16(b[2:4])) + hdrlen
-		h.FragOff = int(socket.NativeEndian.Uint16(b[6:8]))
+		h.TotalLen = int(binary.NativeEndian.Uint16(b[2:4])) + hdrlen
+		h.FragOff = int(binary.NativeEndian.Uint16(b[6:8]))
 	case "freebsd":
 		if freebsdVersion < 1100000 {
-			h.TotalLen = int(socket.NativeEndian.Uint16(b[2:4]))
+			h.TotalLen = int(binary.NativeEndian.Uint16(b[2:4]))
 			if freebsdVersion < 1000000 {
 				h.TotalLen += hdrlen
 			}
-			h.FragOff = int(socket.NativeEndian.Uint16(b[6:8]))
+			h.FragOff = int(binary.NativeEndian.Uint16(b[6:8]))
 		} else {
 			h.TotalLen = int(binary.BigEndian.Uint16(b[2:4]))
 			h.FragOff = int(binary.BigEndian.Uint16(b[6:8]))

backend/vendor/golang.org/x/net/ipv6/control_rfc2292_unix.go

@@ -7,6 +7,7 @@
 package ipv6
 
 import (
+	"encoding/binary"
 	"unsafe"
 
 	"golang.org/x/net/internal/iana"
@@ -19,7 +20,7 @@ func marshal2292HopLimit(b []byte, cm *ControlMessage) []byte {
 	m := socket.ControlMessage(b)
 	m.MarshalHeader(iana.ProtocolIPv6, unix.IPV6_2292HOPLIMIT, 4)
 	if cm != nil {
-		socket.NativeEndian.PutUint32(m.Data(4), uint32(cm.HopLimit))
+		binary.NativeEndian.PutUint32(m.Data(4), uint32(cm.HopLimit))
 	}
 	return m.Next(4)
 }

backend/vendor/golang.org/x/net/ipv6/control_rfc3542_unix.go

@@ -7,6 +7,7 @@
 package ipv6
 
 import (
+	"encoding/binary"
 	"net"
 	"unsafe"
 
@@ -20,26 +21,26 @@ func marshalTrafficClass(b []byte, cm *ControlMessage) []byte {
 	m := socket.ControlMessage(b)
 	m.MarshalHeader(iana.ProtocolIPv6, unix.IPV6_TCLASS, 4)
 	if cm != nil {
-		socket.NativeEndian.PutUint32(m.Data(4), uint32(cm.TrafficClass))
+		binary.NativeEndian.PutUint32(m.Data(4), uint32(cm.TrafficClass))
 	}
 	return m.Next(4)
 }
 
 func parseTrafficClass(cm *ControlMessage, b []byte) {
-	cm.TrafficClass = int(socket.NativeEndian.Uint32(b[:4]))
+	cm.TrafficClass = int(binary.NativeEndian.Uint32(b[:4]))
 }
 
 func marshalHopLimit(b []byte, cm *ControlMessage) []byte {
 	m := socket.ControlMessage(b)
 	m.MarshalHeader(iana.ProtocolIPv6, unix.IPV6_HOPLIMIT, 4)
 	if cm != nil {
-		socket.NativeEndian.PutUint32(m.Data(4), uint32(cm.HopLimit))
+		binary.NativeEndian.PutUint32(m.Data(4), uint32(cm.HopLimit))
 	}
 	return m.Next(4)
 }
 
 func parseHopLimit(cm *ControlMessage, b []byte) {
-	cm.HopLimit = int(socket.NativeEndian.Uint32(b[:4]))
+	cm.HopLimit = int(binary.NativeEndian.Uint32(b[:4]))
 }
 
 func marshalPacketInfo(b []byte, cm *ControlMessage) []byte {

backend/vendor/golang.org/x/net/publicsuffix/list.go

@@ -51,6 +51,7 @@ package publicsuffix // import "golang.org/x/net/publicsuffix"
 import (
 	"fmt"
 	"net/http/cookiejar"
+	"net/netip"
 	"strings"
 )
 
@@ -84,6 +85,10 @@ func (list) String() string {
 // domains like "foo.appspot.com" can be found at
 // https://wiki.mozilla.org/Public_Suffix_List/Use_Cases
 func PublicSuffix(domain string) (publicSuffix string, icann bool) {
+	if _, err := netip.ParseAddr(domain); err == nil {
+		return domain, false
+	}
+
 	lo, hi := uint32(0), uint32(numTLD)
 	s, suffix, icannNode, wildcard := domain, len(domain), false, false
 loop:

backend/vendor/golang.org/x/net/publicsuffix/table.go

@@ -4,7 +4,7 @@ package publicsuffix
 
 import _ "embed"
 
-const version = "publicsuffix.org's public_suffix_list.dat, git revision 2c960dac3d39ba521eb5db9da192968f5be0aded (2025-03-18T07:22:13Z)"
+const version = "publicsuffix.org's public_suffix_list.dat, git revision d6c92f1bbb7433e5db7b8405c25d4035fb8ff376 (2026-02-06T07:36:33Z)"
 
 const (
 	nodesBits           = 40
@@ -26,7 +26,7 @@ const (
 )
 
 // numTLD is the number of top level domains.
-const numTLD = 1454
+const numTLD = 1450
 
 // text is the combined text of all labels.
 //
@@ -63,8 +63,8 @@ var nodes uint40String
 //go:embed data/children
 var children uint32String
 
-// max children 870 (capacity 1023)
-// max text offset 31785 (capacity 65535)
+// max children 935 (capacity 1023)
+// max text offset 32332 (capacity 65535)
 // max text length 31 (capacity 63)
-// max hi 10100 (capacity 16383)
-// max lo 10095 (capacity 16383)
+// max hi 10533 (capacity 16383)
+// max lo 10528 (capacity 16383)

backend/vendor/golang.org/x/sync/errgroup/errgroup.go

@@ -144,8 +144,8 @@ func (g *Group) SetLimit(n int) {
 		g.sem = nil
 		return
 	}
-	if len(g.sem) != 0 {
-		panic(fmt.Errorf("errgroup: modify limit while %v goroutines in the group are still active", len(g.sem)))
+	if active := len(g.sem); active != 0 {
+		panic(fmt.Errorf("errgroup: modify limit while %v goroutines in the group are still active", active))
 	}
 	g.sem = make(chan token, n)
 }

backend/vendor/golang.org/x/sync/singleflight/singleflight.go

@@ -22,7 +22,7 @@ var errGoexit = errors.New("runtime.Goexit was called")
 // A panicError is an arbitrary value recovered from a panic
 // with the stack trace during the execution of given function.
 type panicError struct {
-	value interface{}
+	value any
 	stack []byte
 }
 
@@ -40,7 +40,7 @@ func (p *panicError) Unwrap() error {
 	return err
 }
 
-func newPanicError(v interface{}) error {
+func newPanicError(v any) error {
 	stack := debug.Stack()
 
 	// The first line of the stack trace is of the form "goroutine N [status]:"
@@ -58,7 +58,7 @@ type call struct {
 
 	// These fields are written once before the WaitGroup is done
 	// and are only read after the WaitGroup is done.
-	val interface{}
+	val any
 	err error
 
 	// These fields are read and written with the singleflight
@@ -78,7 +78,7 @@ type Group struct {
 // Result holds the results of Do, so they can be passed
 // on a channel.
 type Result struct {
-	Val    interface{}
+	Val    any
 	Err    error
 	Shared bool
 }
@@ -88,7 +88,7 @@ type Result struct {
 // time. If a duplicate comes in, the duplicate caller waits for the
 // original to complete and receives the same results.
 // The return value shared indicates whether v was given to multiple callers.
-func (g *Group) Do(key string, fn func() (interface{}, error)) (v interface{}, err error, shared bool) {
+func (g *Group) Do(key string, fn func() (any, error)) (v any, err error, shared bool) {
 	g.mu.Lock()
 	if g.m == nil {
 		g.m = make(map[string]*call)
@@ -118,7 +118,7 @@ func (g *Group) Do(key string, fn func() (interface{}, error)) (v interface{}, e
 // results when they are ready.
 //
 // The returned channel will not be closed.
-func (g *Group) DoChan(key string, fn func() (interface{}, error)) <-chan Result {
+func (g *Group) DoChan(key string, fn func() (any, error)) <-chan Result {
 	ch := make(chan Result, 1)
 	g.mu.Lock()
 	if g.m == nil {
@@ -141,7 +141,7 @@ func (g *Group) DoChan(key string, fn func() (interface{}, error)) <-chan Result
 }
 
 // doCall handles the single call for a key.
-func (g *Group) doCall(c *call, key string, fn func() (interface{}, error)) {
+func (g *Group) doCall(c *call, key string, fn func() (any, error)) {
 	normalReturn := false
 	recovered := false
 

backend/vendor/golang.org/x/sys/cpu/asm_darwin_arm64_gc.s

@@ -0,0 +1,12 @@
+// Copyright 2024 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+//go:build darwin && arm64 && gc
+
+#include "textflag.h"
+
+TEXT libc_sysctlbyname_trampoline<>(SB),NOSPLIT,$0-0
+	JMP	libc_sysctlbyname(SB)
+GLOBL	·libc_sysctlbyname_trampoline_addr(SB), RODATA, $8
+DATA	·libc_sysctlbyname_trampoline_addr(SB)/8, $libc_sysctlbyname_trampoline<>(SB)

backend/vendor/golang.org/x/sys/cpu/cpu_arm64.go

@@ -44,14 +44,11 @@ func initOptions() {
 }
 
 func archInit() {
-	switch runtime.GOOS {
-	case "freebsd":
+	if runtime.GOOS == "freebsd" {
 		readARM64Registers()
-	case "linux", "netbsd", "openbsd":
+	} else {
+		// Most platforms don't seem to allow directly reading these registers.
 		doinit()
-	default:
-		// Many platforms don't seem to allow reading these registers.
-		setMinimalFeatures()
 	}
 }
 

backend/vendor/golang.org/x/sys/cpu/cpu_arm64.s

@@ -9,31 +9,27 @@
 // func getisar0() uint64
 TEXT ·getisar0(SB),NOSPLIT,$0-8
 	// get Instruction Set Attributes 0 into x0
-	// mrs x0, ID_AA64ISAR0_EL1 = d5380600
-	WORD	$0xd5380600
+	MRS	ID_AA64ISAR0_EL1, R0
 	MOVD	R0, ret+0(FP)
 	RET
 
 // func getisar1() uint64
 TEXT ·getisar1(SB),NOSPLIT,$0-8
 	// get Instruction Set Attributes 1 into x0
-	// mrs x0, ID_AA64ISAR1_EL1 = d5380620
-	WORD	$0xd5380620
+	MRS	ID_AA64ISAR1_EL1, R0
 	MOVD	R0, ret+0(FP)
 	RET
 
 // func getpfr0() uint64
 TEXT ·getpfr0(SB),NOSPLIT,$0-8
 	// get Processor Feature Register 0 into x0
-	// mrs x0, ID_AA64PFR0_EL1 = d5380400
-	WORD	$0xd5380400
+	MRS	ID_AA64PFR0_EL1, R0
 	MOVD	R0, ret+0(FP)
 	RET
 
 // func getzfr0() uint64
 TEXT ·getzfr0(SB),NOSPLIT,$0-8
 	// get SVE Feature Register 0 into x0
-	// mrs	x0, ID_AA64ZFR0_EL1 = d5380480
-	WORD $0xd5380480
+	MRS	ID_AA64ZFR0_EL1, R0
 	MOVD	R0, ret+0(FP)
 	RET

backend/vendor/golang.org/x/sys/cpu/cpu_darwin_arm64.go

@@ -0,0 +1,67 @@
+// Copyright 2026 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+//go:build darwin && arm64 && gc
+
+package cpu
+
+func doinit() {
+	setMinimalFeatures()
+
+	// The feature flags are explained in [Instruction Set Detection].
+	// There are some differences between MacOS versions:
+	//
+	// MacOS 11 and 12 do not have "hw.optional" sysctl values for some of the features.
+	//
+	// MacOS 13 changed some of the naming conventions to align with ARM Architecture Reference Manual.
+	// For example "hw.optional.armv8_2_sha512" became "hw.optional.arm.FEAT_SHA512".
+	// It currently checks both to stay compatible with MacOS 11 and 12.
+	// The old names also work with MacOS 13, however it's not clear whether
+	// they will continue working with future OS releases.
+	//
+	// Once MacOS 12 is no longer supported the old names can be removed.
+	//
+	// [Instruction Set Detection]: https://developer.apple.com/documentation/kernel/1387446-sysctlbyname/determining_instruction_set_characteristics
+
+	// Encryption, hashing and checksum capabilities
+
+	// For the following flags there are no MacOS 11 sysctl flags.
+	ARM64.HasAES = true || darwinSysctlEnabled([]byte("hw.optional.arm.FEAT_AES\x00"))
+	ARM64.HasPMULL = true || darwinSysctlEnabled([]byte("hw.optional.arm.FEAT_PMULL\x00"))
+	ARM64.HasSHA1 = true || darwinSysctlEnabled([]byte("hw.optional.arm.FEAT_SHA1\x00"))
+	ARM64.HasSHA2 = true || darwinSysctlEnabled([]byte("hw.optional.arm.FEAT_SHA256\x00"))
+
+	ARM64.HasSHA3 = darwinSysctlEnabled([]byte("hw.optional.armv8_2_sha3\x00")) || darwinSysctlEnabled([]byte("hw.optional.arm.FEAT_SHA3\x00"))
+	ARM64.HasSHA512 = darwinSysctlEnabled([]byte("hw.optional.armv8_2_sha512\x00")) || darwinSysctlEnabled([]byte("hw.optional.arm.FEAT_SHA512\x00"))
+
+	ARM64.HasCRC32 = darwinSysctlEnabled([]byte("hw.optional.armv8_crc32\x00"))
+
+	// Atomic and memory ordering
+	ARM64.HasATOMICS = darwinSysctlEnabled([]byte("hw.optional.armv8_1_atomics\x00")) || darwinSysctlEnabled([]byte("hw.optional.arm.FEAT_LSE\x00"))
+	ARM64.HasLRCPC = darwinSysctlEnabled([]byte("hw.optional.arm.FEAT_LRCPC\x00"))
+
+	// SIMD and floating point capabilities
+	ARM64.HasFPHP = darwinSysctlEnabled([]byte("hw.optional.neon_fp16\x00")) || darwinSysctlEnabled([]byte("hw.optional.arm.FEAT_FP16\x00"))
+	ARM64.HasASIMDHP = darwinSysctlEnabled([]byte("hw.optional.neon_hpfp\x00")) || darwinSysctlEnabled([]byte("hw.optional.AdvSIMD_HPFPCvt\x00"))
+	ARM64.HasASIMDRDM = darwinSysctlEnabled([]byte("hw.optional.arm.FEAT_RDM\x00"))
+	ARM64.HasASIMDDP = darwinSysctlEnabled([]byte("hw.optional.arm.FEAT_DotProd\x00"))
+	ARM64.HasASIMDFHM = darwinSysctlEnabled([]byte("hw.optional.armv8_2_fhm\x00")) || darwinSysctlEnabled([]byte("hw.optional.arm.FEAT_FHM\x00"))
+	ARM64.HasI8MM = darwinSysctlEnabled([]byte("hw.optional.arm.FEAT_I8MM\x00"))
+
+	ARM64.HasJSCVT = darwinSysctlEnabled([]byte("hw.optional.arm.FEAT_JSCVT\x00"))
+	ARM64.HasFCMA = darwinSysctlEnabled([]byte("hw.optional.armv8_3_compnum\x00")) || darwinSysctlEnabled([]byte("hw.optional.arm.FEAT_FCMA\x00"))
+
+	// Miscellaneous
+	ARM64.HasDCPOP = darwinSysctlEnabled([]byte("hw.optional.arm.FEAT_DPB\x00"))
+	ARM64.HasEVTSTRM = darwinSysctlEnabled([]byte("hw.optional.arm.FEAT_ECV\x00"))
+	ARM64.HasDIT = darwinSysctlEnabled([]byte("hw.optional.arm.FEAT_DIT\x00"))
+
+	// Not supported, but added for completeness
+	ARM64.HasCPUID = false
+
+	ARM64.HasSM3 = false  // darwinSysctlEnabled([]byte("hw.optional.arm.FEAT_SM3\x00"))
+	ARM64.HasSM4 = false  // darwinSysctlEnabled([]byte("hw.optional.arm.FEAT_SM4\x00"))
+	ARM64.HasSVE = false  // darwinSysctlEnabled([]byte("hw.optional.arm.FEAT_SVE\x00"))
+	ARM64.HasSVE2 = false // darwinSysctlEnabled([]byte("hw.optional.arm.FEAT_SVE2\x00"))
+}

backend/vendor/golang.org/x/sys/cpu/cpu_darwin_arm64_other.go

@@ -0,0 +1,29 @@
+// Copyright 2026 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+//go:build darwin && arm64 && !gc
+
+package cpu
+
+func doinit() {
+	setMinimalFeatures()
+
+	ARM64.HasASIMD = true
+	ARM64.HasFP = true
+
+	// Go already assumes these to be available because they were on the M1
+	// and these are supported on all Apple arm64 chips.
+	ARM64.HasAES = true
+	ARM64.HasPMULL = true
+	ARM64.HasSHA1 = true
+	ARM64.HasSHA2 = true
+
+	if runtime.GOOS != "ios" {
+		// Apple A7 processors do not support these, however
+		// M-series SoCs are at least armv8.4-a
+		ARM64.HasCRC32 = true   // armv8.1
+		ARM64.HasATOMICS = true // armv8.2
+		ARM64.HasJSCVT = true   // armv8.3, if HasFP
+	}
+}

backend/vendor/golang.org/x/sys/cpu/cpu_gccgo_arm64.go

@@ -9,3 +9,4 @@ package cpu
 func getisar0() uint64 { return 0 }
 func getisar1() uint64 { return 0 }
 func getpfr0() uint64  { return 0 }
+func getzfr0() uint64  { return 0 }

backend/vendor/golang.org/x/sys/cpu/cpu_other_arm64.go

@@ -2,8 +2,10 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-//go:build !linux && !netbsd && !openbsd && arm64
+//go:build !darwin && !linux && !netbsd && !openbsd && !windows && arm64
 
 package cpu
 
-func doinit() {}
+func doinit() {
+	setMinimalFeatures()
+}

backend/vendor/golang.org/x/sys/cpu/cpu_windows_arm64.go

@@ -0,0 +1,42 @@
+// Copyright 2026 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package cpu
+
+import (
+	"golang.org/x/sys/windows"
+)
+
+func doinit() {
+	// set HasASIMD and HasFP to true as per
+	// https://learn.microsoft.com/en-us/cpp/build/arm64-windows-abi-conventions?view=msvc-170#base-requirements
+	//
+	// The ARM64 version of Windows always presupposes that it's running on an ARMv8 or later architecture.
+	// Both floating-point and NEON support are presumed to be present in hardware.
+	//
+	ARM64.HasASIMD = true
+	ARM64.HasFP = true
+
+	if windows.IsProcessorFeaturePresent(windows.PF_ARM_V8_CRYPTO_INSTRUCTIONS_AVAILABLE) {
+		ARM64.HasAES = true
+		ARM64.HasPMULL = true
+		ARM64.HasSHA1 = true
+		ARM64.HasSHA2 = true
+	}
+	ARM64.HasSHA3 = windows.IsProcessorFeaturePresent(windows.PF_ARM_SHA3_INSTRUCTIONS_AVAILABLE)
+	ARM64.HasCRC32 = windows.IsProcessorFeaturePresent(windows.PF_ARM_V8_CRC32_INSTRUCTIONS_AVAILABLE)
+	ARM64.HasSHA512 = windows.IsProcessorFeaturePresent(windows.PF_ARM_SHA512_INSTRUCTIONS_AVAILABLE)
+	ARM64.HasATOMICS = windows.IsProcessorFeaturePresent(windows.PF_ARM_V81_ATOMIC_INSTRUCTIONS_AVAILABLE)
+	if windows.IsProcessorFeaturePresent(windows.PF_ARM_V82_DP_INSTRUCTIONS_AVAILABLE) {
+		ARM64.HasASIMDDP = true
+		ARM64.HasASIMDRDM = true
+	}
+	if windows.IsProcessorFeaturePresent(windows.PF_ARM_V83_LRCPC_INSTRUCTIONS_AVAILABLE) {
+		ARM64.HasLRCPC = true
+		ARM64.HasSM3 = true
+	}
+	ARM64.HasSVE = windows.IsProcessorFeaturePresent(windows.PF_ARM_SVE_INSTRUCTIONS_AVAILABLE)
+	ARM64.HasSVE2 = windows.IsProcessorFeaturePresent(windows.PF_ARM_SVE2_INSTRUCTIONS_AVAILABLE)
+	ARM64.HasJSCVT = windows.IsProcessorFeaturePresent(windows.PF_ARM_V83_JSCVT_INSTRUCTIONS_AVAILABLE)
+}

backend/vendor/golang.org/x/sys/cpu/cpu_x86.go

@@ -64,6 +64,80 @@ func initOptions() {
 
 func archInit() {
 
+	// From internal/cpu
+	const (
+		// eax bits
+		cpuid_AVXVNNI = 1 << 4
+
+		// ecx bits
+		cpuid_SSE3            = 1 << 0
+		cpuid_PCLMULQDQ       = 1 << 1
+		cpuid_AVX512VBMI      = 1 << 1
+		cpuid_AVX512VBMI2     = 1 << 6
+		cpuid_SSSE3           = 1 << 9
+		cpuid_AVX512GFNI      = 1 << 8
+		cpuid_AVX512VAES      = 1 << 9
+		cpuid_AVX512VNNI      = 1 << 11
+		cpuid_AVX512BITALG    = 1 << 12
+		cpuid_FMA             = 1 << 12
+		cpuid_AVX512VPOPCNTDQ = 1 << 14
+		cpuid_SSE41           = 1 << 19
+		cpuid_SSE42           = 1 << 20
+		cpuid_POPCNT          = 1 << 23
+		cpuid_AES             = 1 << 25
+		cpuid_OSXSAVE         = 1 << 27
+		cpuid_AVX             = 1 << 28
+
+		// "Extended Feature Flag" bits returned in EBX for CPUID EAX=0x7 ECX=0x0
+		cpuid_BMI1     = 1 << 3
+		cpuid_AVX2     = 1 << 5
+		cpuid_BMI2     = 1 << 8
+		cpuid_ERMS     = 1 << 9
+		cpuid_AVX512F  = 1 << 16
+		cpuid_AVX512DQ = 1 << 17
+		cpuid_ADX      = 1 << 19
+		cpuid_AVX512CD = 1 << 28
+		cpuid_SHA      = 1 << 29
+		cpuid_AVX512BW = 1 << 30
+		cpuid_AVX512VL = 1 << 31
+
+		// "Extended Feature Flag" bits returned in ECX for CPUID EAX=0x7 ECX=0x0
+		cpuid_AVX512_VBMI      = 1 << 1
+		cpuid_AVX512_VBMI2     = 1 << 6
+		cpuid_GFNI             = 1 << 8
+		cpuid_AVX512VPCLMULQDQ = 1 << 10
+		cpuid_AVX512_BITALG    = 1 << 12
+
+		// edx bits
+		cpuid_FSRM = 1 << 4
+		// edx bits for CPUID 0x80000001
+		cpuid_RDTSCP = 1 << 27
+	)
+	// Additional constants not in internal/cpu
+	const (
+		// eax=1: edx
+		cpuid_SSE2 = 1 << 26
+		// eax=1: ecx
+		cpuid_CX16   = 1 << 13
+		cpuid_RDRAND = 1 << 30
+		// eax=7,ecx=0: ebx
+		cpuid_RDSEED     = 1 << 18
+		cpuid_AVX512IFMA = 1 << 21
+		cpuid_AVX512PF   = 1 << 26
+		cpuid_AVX512ER   = 1 << 27
+		// eax=7,ecx=0: edx
+		cpuid_AVX5124VNNIW = 1 << 2
+		cpuid_AVX5124FMAPS = 1 << 3
+		cpuid_AMXBF16      = 1 << 22
+		cpuid_AMXTile      = 1 << 24
+		cpuid_AMXInt8      = 1 << 25
+		// eax=7,ecx=1: eax
+		cpuid_AVX512BF16 = 1 << 5
+		cpuid_AVXIFMA    = 1 << 23
+		// eax=7,ecx=1: edx
+		cpuid_AVXVNNIInt8 = 1 << 4
+	)
+
 	Initialized = true
 
 	maxID, _, _, _ := cpuid(0, 0)
@@ -73,90 +147,90 @@ func archInit() {
 	}
 
 	_, _, ecx1, edx1 := cpuid(1, 0)
-	X86.HasSSE2 = isSet(26, edx1)
+	X86.HasSSE2 = isSet(edx1, cpuid_SSE2)
 
-	X86.HasSSE3 = isSet(0, ecx1)
-	X86.HasPCLMULQDQ = isSet(1, ecx1)
-	X86.HasSSSE3 = isSet(9, ecx1)
-	X86.HasFMA = isSet(12, ecx1)
-	X86.HasCX16 = isSet(13, ecx1)
-	X86.HasSSE41 = isSet(19, ecx1)
-	X86.HasSSE42 = isSet(20, ecx1)
-	X86.HasPOPCNT = isSet(23, ecx1)
-	X86.HasAES = isSet(25, ecx1)
-	X86.HasOSXSAVE = isSet(27, ecx1)
-	X86.HasRDRAND = isSet(30, ecx1)
+	X86.HasSSE3 = isSet(ecx1, cpuid_SSE3)
+	X86.HasPCLMULQDQ = isSet(ecx1, cpuid_PCLMULQDQ)
+	X86.HasSSSE3 = isSet(ecx1, cpuid_SSSE3)
+	X86.HasFMA = isSet(ecx1, cpuid_FMA)
+	X86.HasCX16 = isSet(ecx1, cpuid_CX16)
+	X86.HasSSE41 = isSet(ecx1, cpuid_SSE41)
+	X86.HasSSE42 = isSet(ecx1, cpuid_SSE42)
+	X86.HasPOPCNT = isSet(ecx1, cpuid_POPCNT)
+	X86.HasAES = isSet(ecx1, cpuid_AES)
+	X86.HasOSXSAVE = isSet(ecx1, cpuid_OSXSAVE)
+	X86.HasRDRAND = isSet(ecx1, cpuid_RDRAND)
 
 	var osSupportsAVX, osSupportsAVX512 bool
 	// For XGETBV, OSXSAVE bit is required and sufficient.
 	if X86.HasOSXSAVE {
 		eax, _ := xgetbv()
 		// Check if XMM and YMM registers have OS support.
-		osSupportsAVX = isSet(1, eax) && isSet(2, eax)
+		osSupportsAVX = isSet(eax, 1<<1) && isSet(eax, 1<<2)
 
 		if runtime.GOOS == "darwin" {
 			// Darwin requires special AVX512 checks, see cpu_darwin_x86.go
 			osSupportsAVX512 = osSupportsAVX && darwinSupportsAVX512()
 		} else {
 			// Check if OPMASK and ZMM registers have OS support.
-			osSupportsAVX512 = osSupportsAVX && isSet(5, eax) && isSet(6, eax) && isSet(7, eax)
+			osSupportsAVX512 = osSupportsAVX && isSet(eax, 1<<5) && isSet(eax, 1<<6) && isSet(eax, 1<<7)
 		}
 	}
 
-	X86.HasAVX = isSet(28, ecx1) && osSupportsAVX
+	X86.HasAVX = isSet(ecx1, cpuid_AVX) && osSupportsAVX
 
 	if maxID < 7 {
 		return
 	}
 
 	eax7, ebx7, ecx7, edx7 := cpuid(7, 0)
-	X86.HasBMI1 = isSet(3, ebx7)
-	X86.HasAVX2 = isSet(5, ebx7) && osSupportsAVX
-	X86.HasBMI2 = isSet(8, ebx7)
-	X86.HasERMS = isSet(9, ebx7)
-	X86.HasRDSEED = isSet(18, ebx7)
-	X86.HasADX = isSet(19, ebx7)
+	X86.HasBMI1 = isSet(ebx7, cpuid_BMI1)
+	X86.HasAVX2 = isSet(ebx7, cpuid_AVX2) && osSupportsAVX
+	X86.HasBMI2 = isSet(ebx7, cpuid_BMI2)
+	X86.HasERMS = isSet(ebx7, cpuid_ERMS)
+	X86.HasRDSEED = isSet(ebx7, cpuid_RDSEED)
+	X86.HasADX = isSet(ebx7, cpuid_ADX)
 
-	X86.HasAVX512 = isSet(16, ebx7) && osSupportsAVX512 // Because avx-512 foundation is the core required extension
+	X86.HasAVX512 = isSet(ebx7, cpuid_AVX512F) && osSupportsAVX512 // Because avx-512 foundation is the core required extension
 	if X86.HasAVX512 {
 		X86.HasAVX512F = true
-		X86.HasAVX512CD = isSet(28, ebx7)
-		X86.HasAVX512ER = isSet(27, ebx7)
-		X86.HasAVX512PF = isSet(26, ebx7)
-		X86.HasAVX512VL = isSet(31, ebx7)
-		X86.HasAVX512BW = isSet(30, ebx7)
-		X86.HasAVX512DQ = isSet(17, ebx7)
-		X86.HasAVX512IFMA = isSet(21, ebx7)
-		X86.HasAVX512VBMI = isSet(1, ecx7)
-		X86.HasAVX5124VNNIW = isSet(2, edx7)
-		X86.HasAVX5124FMAPS = isSet(3, edx7)
-		X86.HasAVX512VPOPCNTDQ = isSet(14, ecx7)
-		X86.HasAVX512VPCLMULQDQ = isSet(10, ecx7)
-		X86.HasAVX512VNNI = isSet(11, ecx7)
-		X86.HasAVX512GFNI = isSet(8, ecx7)
-		X86.HasAVX512VAES = isSet(9, ecx7)
-		X86.HasAVX512VBMI2 = isSet(6, ecx7)
-		X86.HasAVX512BITALG = isSet(12, ecx7)
+		X86.HasAVX512CD = isSet(ebx7, cpuid_AVX512CD)
+		X86.HasAVX512ER = isSet(ebx7, cpuid_AVX512ER)
+		X86.HasAVX512PF = isSet(ebx7, cpuid_AVX512PF)
+		X86.HasAVX512VL = isSet(ebx7, cpuid_AVX512VL)
+		X86.HasAVX512BW = isSet(ebx7, cpuid_AVX512BW)
+		X86.HasAVX512DQ = isSet(ebx7, cpuid_AVX512DQ)
+		X86.HasAVX512IFMA = isSet(ebx7, cpuid_AVX512IFMA)
+		X86.HasAVX512VBMI = isSet(ecx7, cpuid_AVX512_VBMI)
+		X86.HasAVX5124VNNIW = isSet(edx7, cpuid_AVX5124VNNIW)
+		X86.HasAVX5124FMAPS = isSet(edx7, cpuid_AVX5124FMAPS)
+		X86.HasAVX512VPOPCNTDQ = isSet(ecx7, cpuid_AVX512VPOPCNTDQ)
+		X86.HasAVX512VPCLMULQDQ = isSet(ecx7, cpuid_AVX512VPCLMULQDQ)
+		X86.HasAVX512VNNI = isSet(ecx7, cpuid_AVX512VNNI)
+		X86.HasAVX512GFNI = isSet(ecx7, cpuid_AVX512GFNI)
+		X86.HasAVX512VAES = isSet(ecx7, cpuid_AVX512VAES)
+		X86.HasAVX512VBMI2 = isSet(ecx7, cpuid_AVX512VBMI2)
+		X86.HasAVX512BITALG = isSet(ecx7, cpuid_AVX512BITALG)
 	}
 
-	X86.HasAMXTile = isSet(24, edx7)
-	X86.HasAMXInt8 = isSet(25, edx7)
-	X86.HasAMXBF16 = isSet(22, edx7)
+	X86.HasAMXTile = isSet(edx7, cpuid_AMXTile)
+	X86.HasAMXInt8 = isSet(edx7, cpuid_AMXInt8)
+	X86.HasAMXBF16 = isSet(edx7, cpuid_AMXBF16)
 
 	// These features depend on the second level of extended features.
 	if eax7 >= 1 {
 		eax71, _, _, edx71 := cpuid(7, 1)
 		if X86.HasAVX512 {
-			X86.HasAVX512BF16 = isSet(5, eax71)
+			X86.HasAVX512BF16 = isSet(eax71, cpuid_AVX512BF16)
 		}
 		if X86.HasAVX {
-			X86.HasAVXIFMA = isSet(23, eax71)
-			X86.HasAVXVNNI = isSet(4, eax71)
-			X86.HasAVXVNNIInt8 = isSet(4, edx71)
+			X86.HasAVXIFMA = isSet(eax71, cpuid_AVXIFMA)
+			X86.HasAVXVNNI = isSet(eax71, cpuid_AVXVNNI)
+			X86.HasAVXVNNIInt8 = isSet(edx71, cpuid_AVXVNNIInt8)
 		}
 	}
 }
 
-func isSet(bitpos uint, value uint32) bool {
-	return value&(1<<bitpos) != 0
+func isSet(hwc uint32, value uint32) bool {
+	return hwc&value != 0
 }

backend/vendor/golang.org/x/sys/cpu/syscall_darwin_arm64_gc.go

@@ -0,0 +1,54 @@
+// Copyright 2024 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Minimal copy from internal/cpu and runtime to make sysctl calls.
+
+//go:build darwin && arm64 && gc
+
+package cpu
+
+import (
+	"syscall"
+	"unsafe"
+)
+
+type Errno = syscall.Errno
+
+// adapted from internal/cpu/cpu_arm64_darwin.go
+func darwinSysctlEnabled(name []byte) bool {
+	out := int32(0)
+	nout := unsafe.Sizeof(out)
+	if ret := sysctlbyname(&name[0], (*byte)(unsafe.Pointer(&out)), &nout, nil, 0); ret != nil {
+		return false
+	}
+	return out > 0
+}
+
+//go:cgo_import_dynamic libc_sysctl sysctl "/usr/lib/libSystem.B.dylib"
+
+var libc_sysctlbyname_trampoline_addr uintptr
+
+// adapted from runtime/sys_darwin.go in the pattern of sysctl() above, as defined in x/sys/unix
+func sysctlbyname(name *byte, old *byte, oldlen *uintptr, new *byte, newlen uintptr) error {
+	if _, _, err := syscall_syscall6(
+		libc_sysctlbyname_trampoline_addr,
+		uintptr(unsafe.Pointer(name)),
+		uintptr(unsafe.Pointer(old)),
+		uintptr(unsafe.Pointer(oldlen)),
+		uintptr(unsafe.Pointer(new)),
+		uintptr(newlen),
+		0,
+	); err != 0 {
+		return err
+	}
+
+	return nil
+}
+
+//go:cgo_import_dynamic libc_sysctlbyname sysctlbyname "/usr/lib/libSystem.B.dylib"
+
+// Implemented in the runtime package (runtime/sys_darwin.go)
+func syscall_syscall6(fn, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err Errno)
+
+//go:linkname syscall_syscall6 syscall.syscall6

backend/vendor/golang.org/x/sys/unix/ioctl_signed.go

@@ -6,9 +6,7 @@
 
 package unix
 
-import (
-	"unsafe"
-)
+import "unsafe"
 
 // ioctl itself should not be exposed directly, but additional get/set
 // functions for specific types are permissible.
@@ -28,6 +26,13 @@ func IoctlSetPointerInt(fd int, req int, value int) error {
 	return ioctlPtr(fd, req, unsafe.Pointer(&v))
 }
 
+// IoctlSetString performs an ioctl operation which sets a string value
+// on fd, using the specified request number.
+func IoctlSetString(fd int, req int, value string) error {
+	bs := append([]byte(value), 0)
+	return ioctlPtr(fd, req, unsafe.Pointer(&bs[0]))
+}
+
 // IoctlSetWinsize performs an ioctl on fd with a *Winsize argument.
 //
 // To change fd's window size, the req argument should be TIOCSWINSZ.

backend/vendor/golang.org/x/sys/unix/ioctl_unsigned.go

@@ -6,9 +6,7 @@
 
 package unix
 
-import (
-	"unsafe"
-)
+import "unsafe"
 
 // ioctl itself should not be exposed directly, but additional get/set
 // functions for specific types are permissible.
@@ -28,6 +26,13 @@ func IoctlSetPointerInt(fd int, req uint, value int) error {
 	return ioctlPtr(fd, req, unsafe.Pointer(&v))
 }
 
+// IoctlSetString performs an ioctl operation which sets a string value
+// on fd, using the specified request number.
+func IoctlSetString(fd int, req uint, value string) error {
+	bs := append([]byte(value), 0)
+	return ioctlPtr(fd, req, unsafe.Pointer(&bs[0]))
+}
+
 // IoctlSetWinsize performs an ioctl on fd with a *Winsize argument.
 //
 // To change fd's window size, the req argument should be TIOCSWINSZ.

backend/vendor/golang.org/x/sys/unix/mkerrors.sh

@@ -226,6 +226,7 @@ struct ltchars {
 #include <linux/cryptouser.h>
 #include <linux/devlink.h>
 #include <linux/dm-ioctl.h>
+#include <linux/elf.h>
 #include <linux/errqueue.h>
 #include <linux/ethtool_netlink.h>
 #include <linux/falloc.h>
@@ -255,6 +256,7 @@ struct ltchars {
 #include <linux/loop.h>
 #include <linux/lwtunnel.h>
 #include <linux/magic.h>
+#include <linux/mei.h>
 #include <linux/memfd.h>
 #include <linux/module.h>
 #include <linux/mount.h>
@@ -529,6 +531,7 @@ ccflags="$@"
 		$2 ~ /^O[CNPFPL][A-Z]+[^_][A-Z]+$/ ||
 		$2 ~ /^(NL|CR|TAB|BS|VT|FF)DLY$/ ||
 		$2 ~ /^(NL|CR|TAB|BS|VT|FF)[0-9]$/ ||
+		$2 ~ /^(DT|EI|ELF|EV|NN|NT|PF|SHF|SHN|SHT|STB|STT|VER)_/ ||
 		$2 ~ /^O?XTABS$/ ||
 		$2 ~ /^TC[IO](ON|OFF)$/ ||
 		$2 ~ /^IN_/ ||
@@ -611,7 +614,7 @@ ccflags="$@"
 		$2 !~ /IOC_MAGIC/ &&
 		$2 ~ /^[A-Z][A-Z0-9_]+_MAGIC2?$/ ||
 		$2 ~ /^(VM|VMADDR)_/ ||
-		$2 ~ /^IOCTL_VM_SOCKETS_/ ||
+		$2 ~ /^(IOCTL_VM_SOCKETS_|IOCTL_MEI_)/ ||
 		$2 ~ /^(TASKSTATS|TS)_/ ||
 		$2 ~ /^CGROUPSTATS_/ ||
 		$2 ~ /^GENL_/ ||

backend/vendor/golang.org/x/sys/unix/syscall_linux.go

@@ -2643,3 +2643,9 @@ func SchedGetAttr(pid int, flags uint) (*SchedAttr, error) {
 
 //sys	Cachestat(fd uint, crange *CachestatRange, cstat *Cachestat_t, flags uint) (err error)
 //sys	Mseal(b []byte, flags uint) (err error)
+
+//sys	setMemPolicy(mode int, mask *CPUSet, size int) (err error) = SYS_SET_MEMPOLICY
+
+func SetMemPolicy(mode int, mask *CPUSet) error {
+	return setMemPolicy(mode, mask, _CPU_SETSIZE)
+}

backend/vendor/golang.org/x/sys/unix/syscall_solaris.go

@@ -1052,14 +1052,6 @@ func IoctlSetIntRetInt(fd int, req int, arg int) (int, error) {
 	return ioctlRet(fd, req, uintptr(arg))
 }
 
-func IoctlSetString(fd int, req int, val string) error {
-	bs := make([]byte, len(val)+1)
-	copy(bs[:len(bs)-1], val)
-	err := ioctlPtr(fd, req, unsafe.Pointer(&bs[0]))
-	runtime.KeepAlive(&bs[0])
-	return err
-}
-
 // Lifreq Helpers
 
 func (l *Lifreq) SetName(name string) error {

backend/vendor/golang.org/x/sys/unix/syscall_unix.go

@@ -367,7 +367,9 @@ func Recvmsg(fd int, p, oob []byte, flags int) (n, oobn int, recvflags int, from
 		iov[0].SetLen(len(p))
 	}
 	var rsa RawSockaddrAny
-	n, oobn, recvflags, err = recvmsgRaw(fd, iov[:], oob, flags, &rsa)
+	if n, oobn, recvflags, err = recvmsgRaw(fd, iov[:], oob, flags, &rsa); err != nil {
+		return
+	}
 	// source address is only specified if the socket is unconnected
 	if rsa.Addr.Family != AF_UNSPEC {
 		from, err = anyToSockaddr(fd, &rsa)
@@ -389,8 +391,10 @@ func RecvmsgBuffers(fd int, buffers [][]byte, oob []byte, flags int) (n, oobn in
 		}
 	}
 	var rsa RawSockaddrAny
-	n, oobn, recvflags, err = recvmsgRaw(fd, iov, oob, flags, &rsa)
-	if err == nil && rsa.Addr.Family != AF_UNSPEC {
+	if n, oobn, recvflags, err = recvmsgRaw(fd, iov, oob, flags, &rsa); err != nil {
+		return
+	}
+	if rsa.Addr.Family != AF_UNSPEC {
 		from, err = anyToSockaddr(fd, &rsa)
 	}
 	return

backend/vendor/golang.org/x/sys/unix/zerrors_linux.go

@@ -853,20 +853,86 @@ const (
 	DM_VERSION_MAJOR                            = 0x4
 	DM_VERSION_MINOR                            = 0x32
 	DM_VERSION_PATCHLEVEL                       = 0x0
+	DT_ADDRRNGHI                                = 0x6ffffeff
+	DT_ADDRRNGLO                                = 0x6ffffe00
 	DT_BLK                                      = 0x6
 	DT_CHR                                      = 0x2
+	DT_DEBUG                                    = 0x15
 	DT_DIR                                      = 0x4
+	DT_ENCODING                                 = 0x20
 	DT_FIFO                                     = 0x1
+	DT_FINI                                     = 0xd
+	DT_FLAGS_1                                  = 0x6ffffffb
+	DT_GNU_HASH                                 = 0x6ffffef5
+	DT_HASH                                     = 0x4
+	DT_HIOS                                     = 0x6ffff000
+	DT_HIPROC                                   = 0x7fffffff
+	DT_INIT                                     = 0xc
+	DT_JMPREL                                   = 0x17
 	DT_LNK                                      = 0xa
+	DT_LOOS                                     = 0x6000000d
+	DT_LOPROC                                   = 0x70000000
+	DT_NEEDED                                   = 0x1
+	DT_NULL                                     = 0x0
+	DT_PLTGOT                                   = 0x3
+	DT_PLTREL                                   = 0x14
+	DT_PLTRELSZ                                 = 0x2
 	DT_REG                                      = 0x8
+	DT_REL                                      = 0x11
+	DT_RELA                                     = 0x7
+	DT_RELACOUNT                                = 0x6ffffff9
+	DT_RELAENT                                  = 0x9
+	DT_RELASZ                                   = 0x8
+	DT_RELCOUNT                                 = 0x6ffffffa
+	DT_RELENT                                   = 0x13
+	DT_RELSZ                                    = 0x12
+	DT_RPATH                                    = 0xf
 	DT_SOCK                                     = 0xc
+	DT_SONAME                                   = 0xe
+	DT_STRSZ                                    = 0xa
+	DT_STRTAB                                   = 0x5
+	DT_SYMBOLIC                                 = 0x10
+	DT_SYMENT                                   = 0xb
+	DT_SYMTAB                                   = 0x6
+	DT_TEXTREL                                  = 0x16
 	DT_UNKNOWN                                  = 0x0
+	DT_VALRNGHI                                 = 0x6ffffdff
+	DT_VALRNGLO                                 = 0x6ffffd00
+	DT_VERDEF                                   = 0x6ffffffc
+	DT_VERDEFNUM                                = 0x6ffffffd
+	DT_VERNEED                                  = 0x6ffffffe
+	DT_VERNEEDNUM                               = 0x6fffffff
+	DT_VERSYM                                   = 0x6ffffff0
 	DT_WHT                                      = 0xe
 	ECHO                                        = 0x8
 	ECRYPTFS_SUPER_MAGIC                        = 0xf15f
 	EFD_SEMAPHORE                               = 0x1
 	EFIVARFS_MAGIC                              = 0xde5e81e4
 	EFS_SUPER_MAGIC                             = 0x414a53
+	EI_CLASS                                    = 0x4
+	EI_DATA                                     = 0x5
+	EI_MAG0                                     = 0x0
+	EI_MAG1                                     = 0x1
+	EI_MAG2                                     = 0x2
+	EI_MAG3                                     = 0x3
+	EI_NIDENT                                   = 0x10
+	EI_OSABI                                    = 0x7
+	EI_PAD                                      = 0x8
+	EI_VERSION                                  = 0x6
+	ELFCLASS32                                  = 0x1
+	ELFCLASS64                                  = 0x2
+	ELFCLASSNONE                                = 0x0
+	ELFCLASSNUM                                 = 0x3
+	ELFDATA2LSB                                 = 0x1
+	ELFDATA2MSB                                 = 0x2
+	ELFDATANONE                                 = 0x0
+	ELFMAG                                      = "\177ELF"
+	ELFMAG0                                     = 0x7f
+	ELFMAG1                                     = 'E'
+	ELFMAG2                                     = 'L'
+	ELFMAG3                                     = 'F'
+	ELFOSABI_LINUX                              = 0x3
+	ELFOSABI_NONE                               = 0x0
 	EM_386                                      = 0x3
 	EM_486                                      = 0x6
 	EM_68K                                      = 0x4
@@ -1152,14 +1218,24 @@ const (
 	ETH_P_WCCP                                  = 0x883e
 	ETH_P_X25                                   = 0x805
 	ETH_P_XDSA                                  = 0xf8
+	ET_CORE                                     = 0x4
+	ET_DYN                                      = 0x3
+	ET_EXEC                                     = 0x2
+	ET_HIPROC                                   = 0xffff
+	ET_LOPROC                                   = 0xff00
+	ET_NONE                                     = 0x0
+	ET_REL                                      = 0x1
 	EV_ABS                                      = 0x3
 	EV_CNT                                      = 0x20
+	EV_CURRENT                                  = 0x1
 	EV_FF                                       = 0x15
 	EV_FF_STATUS                                = 0x17
 	EV_KEY                                      = 0x1
 	EV_LED                                      = 0x11
 	EV_MAX                                      = 0x1f
 	EV_MSC                                      = 0x4
+	EV_NONE                                     = 0x0
+	EV_NUM                                      = 0x2
 	EV_PWR                                      = 0x16
 	EV_REL                                      = 0x2
 	EV_REP                                      = 0x14
@@ -1539,6 +1615,8 @@ const (
 	IN_OPEN                                     = 0x20
 	IN_Q_OVERFLOW                               = 0x4000
 	IN_UNMOUNT                                  = 0x2000
+	IOCTL_MEI_CONNECT_CLIENT                    = 0xc0104801
+	IOCTL_MEI_CONNECT_CLIENT_VTAG               = 0xc0144804
 	IPPROTO_AH                                  = 0x33
 	IPPROTO_BEETPH                              = 0x5e
 	IPPROTO_COMP                                = 0x6c
@@ -2276,7 +2354,167 @@ const (
 	NLM_F_REPLACE                               = 0x100
 	NLM_F_REQUEST                               = 0x1
 	NLM_F_ROOT                                  = 0x100
+	NN_386_IOPERM                               = "LINUX"
+	NN_386_TLS                                  = "LINUX"
+	NN_ARC_V2                                   = "LINUX"
+	NN_ARM_FPMR                                 = "LINUX"
+	NN_ARM_GCS                                  = "LINUX"
+	NN_ARM_HW_BREAK                             = "LINUX"
+	NN_ARM_HW_WATCH                             = "LINUX"
+	NN_ARM_PACA_KEYS                            = "LINUX"
+	NN_ARM_PACG_KEYS                            = "LINUX"
+	NN_ARM_PAC_ENABLED_KEYS                     = "LINUX"
+	NN_ARM_PAC_MASK                             = "LINUX"
+	NN_ARM_POE                                  = "LINUX"
+	NN_ARM_SSVE                                 = "LINUX"
+	NN_ARM_SVE                                  = "LINUX"
+	NN_ARM_SYSTEM_CALL                          = "LINUX"
+	NN_ARM_TAGGED_ADDR_CTRL                     = "LINUX"
+	NN_ARM_TLS                                  = "LINUX"
+	NN_ARM_VFP                                  = "LINUX"
+	NN_ARM_ZA                                   = "LINUX"
+	NN_ARM_ZT                                   = "LINUX"
+	NN_AUXV                                     = "CORE"
+	NN_FILE                                     = "CORE"
+	NN_GNU_PROPERTY_TYPE_0                      = "GNU"
+	NN_LOONGARCH_CPUCFG                         = "LINUX"
+	NN_LOONGARCH_CSR                            = "LINUX"
+	NN_LOONGARCH_HW_BREAK                       = "LINUX"
+	NN_LOONGARCH_HW_WATCH                       = "LINUX"
+	NN_LOONGARCH_LASX                           = "LINUX"
+	NN_LOONGARCH_LBT                            = "LINUX"
+	NN_LOONGARCH_LSX                            = "LINUX"
+	NN_MIPS_DSP                                 = "LINUX"
+	NN_MIPS_FP_MODE                             = "LINUX"
+	NN_MIPS_MSA                                 = "LINUX"
+	NN_PPC_DEXCR                                = "LINUX"
+	NN_PPC_DSCR                                 = "LINUX"
+	NN_PPC_EBB                                  = "LINUX"
+	NN_PPC_HASHKEYR                             = "LINUX"
+	NN_PPC_PKEY                                 = "LINUX"
+	NN_PPC_PMU                                  = "LINUX"
+	NN_PPC_PPR                                  = "LINUX"
+	NN_PPC_SPE                                  = "LINUX"
+	NN_PPC_TAR                                  = "LINUX"
+	NN_PPC_TM_CDSCR                             = "LINUX"
+	NN_PPC_TM_CFPR                              = "LINUX"
+	NN_PPC_TM_CGPR                              = "LINUX"
+	NN_PPC_TM_CPPR                              = "LINUX"
+	NN_PPC_TM_CTAR                              = "LINUX"
+	NN_PPC_TM_CVMX                              = "LINUX"
+	NN_PPC_TM_CVSX                              = "LINUX"
+	NN_PPC_TM_SPR                               = "LINUX"
+	NN_PPC_VMX                                  = "LINUX"
+	NN_PPC_VSX                                  = "LINUX"
+	NN_PRFPREG                                  = "CORE"
+	NN_PRPSINFO                                 = "CORE"
+	NN_PRSTATUS                                 = "CORE"
+	NN_PRXFPREG                                 = "LINUX"
+	NN_RISCV_CSR                                = "LINUX"
+	NN_RISCV_TAGGED_ADDR_CTRL                   = "LINUX"
+	NN_RISCV_VECTOR                             = "LINUX"
+	NN_S390_CTRS                                = "LINUX"
+	NN_S390_GS_BC                               = "LINUX"
+	NN_S390_GS_CB                               = "LINUX"
+	NN_S390_HIGH_GPRS                           = "LINUX"
+	NN_S390_LAST_BREAK                          = "LINUX"
+	NN_S390_PREFIX                              = "LINUX"
+	NN_S390_PV_CPU_DATA                         = "LINUX"
+	NN_S390_RI_CB                               = "LINUX"
+	NN_S390_SYSTEM_CALL                         = "LINUX"
+	NN_S390_TDB                                 = "LINUX"
+	NN_S390_TIMER                               = "LINUX"
+	NN_S390_TODCMP                              = "LINUX"
+	NN_S390_TODPREG                             = "LINUX"
+	NN_S390_VXRS_HIGH                           = "LINUX"
+	NN_S390_VXRS_LOW                            = "LINUX"
+	NN_SIGINFO                                  = "CORE"
+	NN_TASKSTRUCT                               = "CORE"
+	NN_VMCOREDD                                 = "LINUX"
+	NN_X86_SHSTK                                = "LINUX"
+	NN_X86_XSAVE_LAYOUT                         = "LINUX"
+	NN_X86_XSTATE                               = "LINUX"
 	NSFS_MAGIC                                  = 0x6e736673
+	NT_386_IOPERM                               = 0x201
+	NT_386_TLS                                  = 0x200
+	NT_ARC_V2                                   = 0x600
+	NT_ARM_FPMR                                 = 0x40e
+	NT_ARM_GCS                                  = 0x410
+	NT_ARM_HW_BREAK                             = 0x402
+	NT_ARM_HW_WATCH                             = 0x403
+	NT_ARM_PACA_KEYS                            = 0x407
+	NT_ARM_PACG_KEYS                            = 0x408
+	NT_ARM_PAC_ENABLED_KEYS                     = 0x40a
+	NT_ARM_PAC_MASK                             = 0x406
+	NT_ARM_POE                                  = 0x40f
+	NT_ARM_SSVE                                 = 0x40b
+	NT_ARM_SVE                                  = 0x405
+	NT_ARM_SYSTEM_CALL                          = 0x404
+	NT_ARM_TAGGED_ADDR_CTRL                     = 0x409
+	NT_ARM_TLS                                  = 0x401
+	NT_ARM_VFP                                  = 0x400
+	NT_ARM_ZA                                   = 0x40c
+	NT_ARM_ZT                                   = 0x40d
+	NT_AUXV                                     = 0x6
+	NT_FILE                                     = 0x46494c45
+	NT_GNU_PROPERTY_TYPE_0                      = 0x5
+	NT_LOONGARCH_CPUCFG                         = 0xa00
+	NT_LOONGARCH_CSR                            = 0xa01
+	NT_LOONGARCH_HW_BREAK                       = 0xa05
+	NT_LOONGARCH_HW_WATCH                       = 0xa06
+	NT_LOONGARCH_LASX                           = 0xa03
+	NT_LOONGARCH_LBT                            = 0xa04
+	NT_LOONGARCH_LSX                            = 0xa02
+	NT_MIPS_DSP                                 = 0x800
+	NT_MIPS_FP_MODE                             = 0x801
+	NT_MIPS_MSA                                 = 0x802
+	NT_PPC_DEXCR                                = 0x111
+	NT_PPC_DSCR                                 = 0x105
+	NT_PPC_EBB                                  = 0x106
+	NT_PPC_HASHKEYR                             = 0x112
+	NT_PPC_PKEY                                 = 0x110
+	NT_PPC_PMU                                  = 0x107
+	NT_PPC_PPR                                  = 0x104
+	NT_PPC_SPE                                  = 0x101
+	NT_PPC_TAR                                  = 0x103
+	NT_PPC_TM_CDSCR                             = 0x10f
+	NT_PPC_TM_CFPR                              = 0x109
+	NT_PPC_TM_CGPR                              = 0x108
+	NT_PPC_TM_CPPR                              = 0x10e
+	NT_PPC_TM_CTAR                              = 0x10d
+	NT_PPC_TM_CVMX                              = 0x10a
+	NT_PPC_TM_CVSX                              = 0x10b
+	NT_PPC_TM_SPR                               = 0x10c
+	NT_PPC_VMX                                  = 0x100
+	NT_PPC_VSX                                  = 0x102
+	NT_PRFPREG                                  = 0x2
+	NT_PRPSINFO                                 = 0x3
+	NT_PRSTATUS                                 = 0x1
+	NT_PRXFPREG                                 = 0x46e62b7f
+	NT_RISCV_CSR                                = 0x900
+	NT_RISCV_TAGGED_ADDR_CTRL                   = 0x902
+	NT_RISCV_VECTOR                             = 0x901
+	NT_S390_CTRS                                = 0x304
+	NT_S390_GS_BC                               = 0x30c
+	NT_S390_GS_CB                               = 0x30b
+	NT_S390_HIGH_GPRS                           = 0x300
+	NT_S390_LAST_BREAK                          = 0x306
+	NT_S390_PREFIX                              = 0x305
+	NT_S390_PV_CPU_DATA                         = 0x30e
+	NT_S390_RI_CB                               = 0x30d
+	NT_S390_SYSTEM_CALL                         = 0x307
+	NT_S390_TDB                                 = 0x308
+	NT_S390_TIMER                               = 0x301
+	NT_S390_TODCMP                              = 0x302
+	NT_S390_TODPREG                             = 0x303
+	NT_S390_VXRS_HIGH                           = 0x30a
+	NT_S390_VXRS_LOW                            = 0x309
+	NT_SIGINFO                                  = 0x53494749
+	NT_TASKSTRUCT                               = 0x4
+	NT_VMCOREDD                                 = 0x700
+	NT_X86_SHSTK                                = 0x204
+	NT_X86_XSAVE_LAYOUT                         = 0x205
+	NT_X86_XSTATE                               = 0x202
 	OCFS2_SUPER_MAGIC                           = 0x7461636f
 	OCRNL                                       = 0x8
 	OFDEL                                       = 0x80
@@ -2463,6 +2701,59 @@ const (
 	PERF_RECORD_MISC_USER                       = 0x2
 	PERF_SAMPLE_BRANCH_PLM_ALL                  = 0x7
 	PERF_SAMPLE_WEIGHT_TYPE                     = 0x1004000
+	PF_ALG                                      = 0x26
+	PF_APPLETALK                                = 0x5
+	PF_ASH                                      = 0x12
+	PF_ATMPVC                                   = 0x8
+	PF_ATMSVC                                   = 0x14
+	PF_AX25                                     = 0x3
+	PF_BLUETOOTH                                = 0x1f
+	PF_BRIDGE                                   = 0x7
+	PF_CAIF                                     = 0x25
+	PF_CAN                                      = 0x1d
+	PF_DECnet                                   = 0xc
+	PF_ECONET                                   = 0x13
+	PF_FILE                                     = 0x1
+	PF_IB                                       = 0x1b
+	PF_IEEE802154                               = 0x24
+	PF_INET                                     = 0x2
+	PF_INET6                                    = 0xa
+	PF_IPX                                      = 0x4
+	PF_IRDA                                     = 0x17
+	PF_ISDN                                     = 0x22
+	PF_IUCV                                     = 0x20
+	PF_KCM                                      = 0x29
+	PF_KEY                                      = 0xf
+	PF_LLC                                      = 0x1a
+	PF_LOCAL                                    = 0x1
+	PF_MAX                                      = 0x2e
+	PF_MCTP                                     = 0x2d
+	PF_MPLS                                     = 0x1c
+	PF_NETBEUI                                  = 0xd
+	PF_NETLINK                                  = 0x10
+	PF_NETROM                                   = 0x6
+	PF_NFC                                      = 0x27
+	PF_PACKET                                   = 0x11
+	PF_PHONET                                   = 0x23
+	PF_PPPOX                                    = 0x18
+	PF_QIPCRTR                                  = 0x2a
+	PF_R                                        = 0x4
+	PF_RDS                                      = 0x15
+	PF_ROSE                                     = 0xb
+	PF_ROUTE                                    = 0x10
+	PF_RXRPC                                    = 0x21
+	PF_SECURITY                                 = 0xe
+	PF_SMC                                      = 0x2b
+	PF_SNA                                      = 0x16
+	PF_TIPC                                     = 0x1e
+	PF_UNIX                                     = 0x1
+	PF_UNSPEC                                   = 0x0
+	PF_VSOCK                                    = 0x28
+	PF_W                                        = 0x2
+	PF_WANPIPE                                  = 0x19
+	PF_X                                        = 0x1
+	PF_X25                                      = 0x9
+	PF_XDP                                      = 0x2c
 	PID_FS_MAGIC                                = 0x50494446
 	PIPEFS_MAGIC                                = 0x50495045
 	PPPIOCGNPMODE                               = 0xc008744c
@@ -2758,6 +3049,23 @@ const (
 	PTRACE_SYSCALL_INFO_NONE                    = 0x0
 	PTRACE_SYSCALL_INFO_SECCOMP                 = 0x3
 	PTRACE_TRACEME                              = 0x0
+	PT_AARCH64_MEMTAG_MTE                       = 0x70000002
+	PT_DYNAMIC                                  = 0x2
+	PT_GNU_EH_FRAME                             = 0x6474e550
+	PT_GNU_PROPERTY                             = 0x6474e553
+	PT_GNU_RELRO                                = 0x6474e552
+	PT_GNU_STACK                                = 0x6474e551
+	PT_HIOS                                     = 0x6fffffff
+	PT_HIPROC                                   = 0x7fffffff
+	PT_INTERP                                   = 0x3
+	PT_LOAD                                     = 0x1
+	PT_LOOS                                     = 0x60000000
+	PT_LOPROC                                   = 0x70000000
+	PT_NOTE                                     = 0x4
+	PT_NULL                                     = 0x0
+	PT_PHDR                                     = 0x6
+	PT_SHLIB                                    = 0x5
+	PT_TLS                                      = 0x7
 	P_ALL                                       = 0x0
 	P_PGID                                      = 0x2
 	P_PID                                       = 0x1
@@ -3091,6 +3399,47 @@ const (
 	SEEK_MAX                                    = 0x4
 	SEEK_SET                                    = 0x0
 	SELINUX_MAGIC                               = 0xf97cff8c
+	SHF_ALLOC                                   = 0x2
+	SHF_EXCLUDE                                 = 0x8000000
+	SHF_EXECINSTR                               = 0x4
+	SHF_GROUP                                   = 0x200
+	SHF_INFO_LINK                               = 0x40
+	SHF_LINK_ORDER                              = 0x80
+	SHF_MASKOS                                  = 0xff00000
+	SHF_MASKPROC                                = 0xf0000000
+	SHF_MERGE                                   = 0x10
+	SHF_ORDERED                                 = 0x4000000
+	SHF_OS_NONCONFORMING                        = 0x100
+	SHF_RELA_LIVEPATCH                          = 0x100000
+	SHF_RO_AFTER_INIT                           = 0x200000
+	SHF_STRINGS                                 = 0x20
+	SHF_TLS                                     = 0x400
+	SHF_WRITE                                   = 0x1
+	SHN_ABS                                     = 0xfff1
+	SHN_COMMON                                  = 0xfff2
+	SHN_HIPROC                                  = 0xff1f
+	SHN_HIRESERVE                               = 0xffff
+	SHN_LIVEPATCH                               = 0xff20
+	SHN_LOPROC                                  = 0xff00
+	SHN_LORESERVE                               = 0xff00
+	SHN_UNDEF                                   = 0x0
+	SHT_DYNAMIC                                 = 0x6
+	SHT_DYNSYM                                  = 0xb
+	SHT_HASH                                    = 0x5
+	SHT_HIPROC                                  = 0x7fffffff
+	SHT_HIUSER                                  = 0xffffffff
+	SHT_LOPROC                                  = 0x70000000
+	SHT_LOUSER                                  = 0x80000000
+	SHT_NOBITS                                  = 0x8
+	SHT_NOTE                                    = 0x7
+	SHT_NULL                                    = 0x0
+	SHT_NUM                                     = 0xc
+	SHT_PROGBITS                                = 0x1
+	SHT_REL                                     = 0x9
+	SHT_RELA                                    = 0x4
+	SHT_SHLIB                                   = 0xa
+	SHT_STRTAB                                  = 0x3
+	SHT_SYMTAB                                  = 0x2
 	SHUT_RD                                     = 0x0
 	SHUT_RDWR                                   = 0x2
 	SHUT_WR                                     = 0x1
@@ -3317,6 +3666,16 @@ const (
 	STATX_UID                                   = 0x8
 	STATX_WRITE_ATOMIC                          = 0x10000
 	STATX__RESERVED                             = 0x80000000
+	STB_GLOBAL                                  = 0x1
+	STB_LOCAL                                   = 0x0
+	STB_WEAK                                    = 0x2
+	STT_COMMON                                  = 0x5
+	STT_FILE                                    = 0x4
+	STT_FUNC                                    = 0x2
+	STT_NOTYPE                                  = 0x0
+	STT_OBJECT                                  = 0x1
+	STT_SECTION                                 = 0x3
+	STT_TLS                                     = 0x6
 	SYNC_FILE_RANGE_WAIT_AFTER                  = 0x4
 	SYNC_FILE_RANGE_WAIT_BEFORE                 = 0x1
 	SYNC_FILE_RANGE_WRITE                       = 0x2
@@ -3553,6 +3912,8 @@ const (
 	UTIME_OMIT                                  = 0x3ffffffe
 	V9FS_MAGIC                                  = 0x1021997
 	VERASE                                      = 0x2
+	VER_FLG_BASE                                = 0x1
+	VER_FLG_WEAK                                = 0x2
 	VINTR                                       = 0x0
 	VKILL                                       = 0x3
 	VLNEXT                                      = 0xf

backend/vendor/golang.org/x/sys/unix/zerrors_linux_386.go

@@ -116,6 +116,8 @@ const (
 	IEXTEN                           = 0x8000
 	IN_CLOEXEC                       = 0x80000
 	IN_NONBLOCK                      = 0x800
+	IOCTL_MEI_NOTIFY_GET             = 0x80044803
+	IOCTL_MEI_NOTIFY_SET             = 0x40044802
 	IOCTL_VM_SOCKETS_GET_LOCAL_CID   = 0x7b9
 	IPV6_FLOWINFO_MASK               = 0xffffff0f
 	IPV6_FLOWLABEL_MASK              = 0xffff0f00

backend/vendor/golang.org/x/sys/unix/zerrors_linux_amd64.go

@@ -116,6 +116,8 @@ const (
 	IEXTEN                           = 0x8000
 	IN_CLOEXEC                       = 0x80000
 	IN_NONBLOCK                      = 0x800
+	IOCTL_MEI_NOTIFY_GET             = 0x80044803
+	IOCTL_MEI_NOTIFY_SET             = 0x40044802
 	IOCTL_VM_SOCKETS_GET_LOCAL_CID   = 0x7b9
 	IPV6_FLOWINFO_MASK               = 0xffffff0f
 	IPV6_FLOWLABEL_MASK              = 0xffff0f00

backend/vendor/golang.org/x/sys/unix/zerrors_linux_arm.go

@@ -115,6 +115,8 @@ const (
 	IEXTEN                           = 0x8000
 	IN_CLOEXEC                       = 0x80000
 	IN_NONBLOCK                      = 0x800
+	IOCTL_MEI_NOTIFY_GET             = 0x80044803
+	IOCTL_MEI_NOTIFY_SET             = 0x40044802
 	IOCTL_VM_SOCKETS_GET_LOCAL_CID   = 0x7b9
 	IPV6_FLOWINFO_MASK               = 0xffffff0f
 	IPV6_FLOWLABEL_MASK              = 0xffff0f00

backend/vendor/golang.org/x/sys/unix/zerrors_linux_arm64.go

@@ -120,6 +120,8 @@ const (
 	IEXTEN                           = 0x8000
 	IN_CLOEXEC                       = 0x80000
 	IN_NONBLOCK                      = 0x800
+	IOCTL_MEI_NOTIFY_GET             = 0x80044803
+	IOCTL_MEI_NOTIFY_SET             = 0x40044802
 	IOCTL_VM_SOCKETS_GET_LOCAL_CID   = 0x7b9
 	IPV6_FLOWINFO_MASK               = 0xffffff0f
 	IPV6_FLOWLABEL_MASK              = 0xffff0f00