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Enabling strict memory safety. (#683)

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Max Goedjen 2025-09-09 20:41:29 -07:00 committed by GitHub
parent 6854c05763
commit 8c516e128a
No known key found for this signature in database
GPG Key ID: B5690EEEBB952194
18 changed files with 55 additions and 55 deletions
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1
Sources/Packages/Package.swift
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@ -90,5 +90,6 @@ var swiftSettings: [PackageDescription.SwiftSetting] {
[
.swiftLanguageMode(.v6),
.treatAllWarnings(as: .error),
.strictMemorySafety()
]
}

2
Sources/Packages/Sources/Brief/Updater.swift
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@ -47,7 +47,7 @@ import XPCWrappers
/// Manually trigger an update check.
public func checkForUpdates() async throws {
let session = try XPCTypedSession<[Release], Never>(serviceName: "com.maxgoedjen.Secretive.SecretiveUpdater")
let session = try await XPCTypedSession<[Release], Never>(serviceName: "com.maxgoedjen.Secretive.SecretiveUpdater")
await evaluate(releases: try await session.send())
session.complete()
}

4
Sources/Packages/Sources/SecretAgentKit/Agent.swift
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@ -84,7 +84,7 @@ extension Agent {
}
logger.log("Agent enumerated \(count) identities")
var countBigEndian = UInt32(count).bigEndian
let countData = Data(bytes: &countBigEndian, count: MemoryLayout<UInt32>.size)
let countData = unsafe Data(bytes: &countBigEndian, count: MemoryLayout<UInt32>.size)
return countData + keyData
}
@ -150,7 +150,7 @@ extension SSHAgent.Response {
var data: Data {
var raw = self.rawValue
return Data(bytes: &raw, count: MemoryLayout<UInt8>.size)
return unsafe Data(bytes: &raw, count: MemoryLayout<UInt8>.size)
}
}

4
Sources/Packages/Sources/SecretAgentKit/FileHandleProtocols.swift
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@ -5,8 +5,8 @@ extension FileHandle {
public var pidOfConnectedProcess: Int32 {
let pidPointer = UnsafeMutableRawPointer.allocate(byteCount: MemoryLayout<Int32>.size, alignment: 1)
var len = socklen_t(MemoryLayout<Int32>.size)
getsockopt(fileDescriptor, SOCK_STREAM, LOCAL_PEERPID, pidPointer, &len)
return pidPointer.load(as: Int32.self)
unsafe getsockopt(fileDescriptor, SOCK_STREAM, LOCAL_PEERPID, pidPointer, &len)
return unsafe pidPointer.load(as: Int32.self)
}
}

2
Sources/Packages/Sources/SecretAgentKit/OpenSSHReader.swift
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@ -29,7 +29,7 @@ final class OpenSSHReader {
let lengthRange = 0..<size
let lengthChunk = remaining[lengthRange]
remaining.removeSubrange(lengthRange)
return lengthChunk.bytes.unsafeLoad(as: T.self)
return unsafe lengthChunk.bytes.unsafeLoad(as: T.self)
}
func readNextChunkAsString(convertEndianness: Bool = true) throws(OpenSSHReaderError) -> String {

4
Sources/Packages/Sources/SecretAgentKit/SSHAgentInputParser.swift
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@ -2,7 +2,7 @@ import Foundation
import OSLog
import SecretKit
public protocol SSHAgentInputParserProtocol: Sendable {
public protocol SSHAgentInputParserProtocol {
func parse(data: Data) async throws -> SSHAgent.Request
@ -21,7 +21,7 @@ public struct SSHAgentInputParser: SSHAgentInputParserProtocol {
guard data.count > 4 else {
throw .invalidData
}
let specifiedLength = (data[0..<4].bytes.unsafeLoad(as: UInt32.self).bigEndian) + 4
let specifiedLength = unsafe (data[0..<4].bytes.unsafeLoad(as: UInt32.self).bigEndian) + 4
let rawRequestInt = data[4]
let remainingDataRange = 5..<min(Int(specifiedLength), data.count)
lazy var body: Data = { Data(data[remainingDataRange]) }()

20
Sources/Packages/Sources/SecretAgentKit/SigningRequestTracer.swift
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@ -25,11 +25,11 @@ extension SigningRequestTracer {
/// - Parameter pid: The process ID to look up.
/// - Returns: a `kinfo_proc` struct describing the process ID.
func pidAndNameInfo(from pid: Int32) -> kinfo_proc {
var len = MemoryLayout<kinfo_proc>.size
var len = unsafe MemoryLayout<kinfo_proc>.size
let infoPointer = UnsafeMutableRawPointer.allocate(byteCount: len, alignment: 1)
var name: [Int32] = [CTL_KERN, KERN_PROC, KERN_PROC_PID, pid]
sysctl(&name, UInt32(name.count), infoPointer, &len, nil, 0)
return infoPointer.load(as: kinfo_proc.self)
unsafe sysctl(&name, UInt32(name.count), infoPointer, &len, nil, 0)
return unsafe infoPointer.load(as: kinfo_proc.self)
}
/// Generates a ``SecretKit.SigningRequestProvenance.Process`` from a provided process ID.
@ -37,18 +37,18 @@ extension SigningRequestTracer {
/// - Returns: A ``SecretKit.SigningRequestProvenance.Process`` describing the process.
func process(from pid: Int32) -> SigningRequestProvenance.Process {
var pidAndNameInfo = self.pidAndNameInfo(from: pid)
let ppid = pidAndNameInfo.kp_eproc.e_ppid != 0 ? pidAndNameInfo.kp_eproc.e_ppid : nil
let procName = withUnsafeMutablePointer(to: &pidAndNameInfo.kp_proc.p_comm.0) { pointer in
String(cString: pointer)
let ppid = unsafe pidAndNameInfo.kp_eproc.e_ppid != 0 ? pidAndNameInfo.kp_eproc.e_ppid : nil
let procName = unsafe withUnsafeMutablePointer(to: &pidAndNameInfo.kp_proc.p_comm.0) { pointer in
unsafe String(cString: pointer)
}
let pathPointer = UnsafeMutablePointer<UInt8>.allocate(capacity: Int(MAXPATHLEN))
_ = proc_pidpath(pid, pathPointer, UInt32(MAXPATHLEN))
let path = String(cString: pathPointer)
_ = unsafe proc_pidpath(pid, pathPointer, UInt32(MAXPATHLEN))
let path = unsafe String(cString: pathPointer)
var secCode: Unmanaged<SecCode>!
let flags: SecCSFlags = [.considerExpiration, .enforceRevocationChecks]
SecCodeCreateWithPID(pid, SecCSFlags(), &secCode)
let valid = SecCodeCheckValidity(secCode.takeRetainedValue(), flags, nil) == errSecSuccess
unsafe SecCodeCreateWithPID(pid, SecCSFlags(), &secCode)
let valid = unsafe SecCodeCheckValidity(secCode.takeRetainedValue(), flags, nil) == errSecSuccess
return SigningRequestProvenance.Process(pid: pid, processName: procName, appName: appName(for: pid), iconURL: iconURL(for: pid), path: path, validSignature: valid, parentPID: ppid)
}

13
Sources/Packages/Sources/SecretAgentKit/SocketController.swift
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@ -134,10 +134,10 @@ private extension SocketPort {
convenience init(path: String) {
var addr = sockaddr_un()
let length = withUnsafeMutablePointer(to: &addr.sun_path.0) { pointer in
path.withCString { cstring in
let len = strlen(cstring)
strncpy(pointer, cstring, len)
let length = unsafe withUnsafeMutablePointer(to: &addr.sun_path.0) { pointer in
unsafe path.withCString { cstring in
let len = unsafe strlen(cstring)
unsafe strncpy(pointer, cstring, len)
return len
}
}
@ -147,10 +147,7 @@ private extension SocketPort {
// This mirrors the SUN_LEN macro format.
addr.sun_len = UInt8(MemoryLayout<sockaddr_un>.size - MemoryLayout.size(ofValue: addr.sun_path) + length)
let data = withUnsafePointer(to: &addr) { pointer in
Data(bytes: pointer, count: MemoryLayout<sockaddr_un>.size)
}
let data = unsafe Data(bytes: &addr, count: MemoryLayout<sockaddr_un>.size)
self.init(protocolFamily: AF_UNIX, socketType: SOCK_STREAM, protocol: 0, address: data)!
}

4
Sources/Packages/Sources/SecretKit/KeychainTypes.swift
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@ -36,12 +36,12 @@ public struct KeychainError: Error {
/// A signing-related error.
public struct SigningError: Error {
/// The underlying error reported by the API, if one was returned.
public let error: SecurityError?
public let error: CFError?
/// Initializes a SigningError with an optional SecurityError.
/// - Parameter statusCode: The SecurityError, if one is applicable.
public init(error: SecurityError?) {
self.error = error
self.error = unsafe error?.takeRetainedValue()
}
}

2
Sources/Packages/Sources/SecretKit/OpenSSH/LengthAndData.swift
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@ -7,7 +7,7 @@ extension Data {
package var lengthAndData: Data {
let rawLength = UInt32(count)
var endian = rawLength.bigEndian
return Data(bytes: &endian, count: MemoryLayout<UInt32>.size) + self
return unsafe Data(bytes: &endian, count: MemoryLayout<UInt32>.size) + self
}
}

4
Sources/Packages/Sources/SecureEnclaveSecretKit/CryptoKitMigrator.swift
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@ -27,7 +27,7 @@ extension SecureEnclave {
kSecReturnAttributes: true
])
var privateUntyped: CFTypeRef?
SecItemCopyMatching(privateAttributes, &privateUntyped)
unsafe SecItemCopyMatching(privateAttributes, &privateUntyped)
guard let privateTyped = privateUntyped as? [[CFString: Any]] else { return }
let migratedPublicKeys = Set(store.secrets.map(\.publicKey))
var migratedAny = false
@ -40,7 +40,7 @@ extension SecureEnclave {
}
let ref = key[kSecValueRef] as! SecKey
let attributes = SecKeyCopyAttributes(ref) as! [CFString: Any]
let tokenObjectID = attributes[Constants.tokenObjectID] as! Data
let tokenObjectID = unsafe attributes[Constants.tokenObjectID] as! Data
let accessControl = attributes[kSecAttrAccessControl] as! SecAccessControl
// Best guess.
let auth: AuthenticationRequirement = String(describing: accessControl)

2
Sources/Packages/Sources/SecureEnclaveSecretKit/PersistentAuthenticationHandler.swift
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@ -21,7 +21,7 @@ extension SecureEnclave {
/// - duration: The duration of the authorization context, in seconds.
init(secret: Secret, context: LAContext, duration: TimeInterval) {
self.secret = secret
self.context = context
unsafe self.context = context
let durationInNanoSeconds = Measurement(value: duration, unit: UnitDuration.seconds).converted(to: .nanoseconds).value
self.monotonicExpiration = clock_gettime_nsec_np(CLOCK_MONOTONIC) + UInt64(durationInNanoSeconds)
}

14
Sources/Packages/Sources/SecureEnclaveSecretKit/SecureEnclaveStore.swift
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@ -2,7 +2,7 @@ import Foundation
import Observation
import Security
import CryptoKit
@preconcurrency import LocalAuthentication
import LocalAuthentication
import SecretKit
import os
@ -40,7 +40,7 @@ extension SecureEnclave {
public func sign(data: Data, with secret: Secret, for provenance: SigningRequestProvenance) async throws -> Data {
var context: LAContext
if let existing = await persistentAuthenticationHandler.existingPersistedAuthenticationContext(secret: secret) {
context = existing.context
context = unsafe existing.context
} else {
let newContext = LAContext()
newContext.localizedReason = String(localized: .authContextRequestSignatureDescription(appName: provenance.origin.displayName, secretName: secret.name))
@ -57,7 +57,7 @@ extension SecureEnclave {
kSecReturnData: true,
])
var untyped: CFTypeRef?
let status = SecItemCopyMatching(queryAttributes, &untyped)
let status = unsafe SecItemCopyMatching(queryAttributes, &untyped)
if status != errSecSuccess {
throw KeychainError(statusCode: status)
}
@ -121,12 +121,12 @@ extension SecureEnclave {
fatalError()
}
let access =
SecAccessControlCreateWithFlags(kCFAllocatorDefault,
unsafe SecAccessControlCreateWithFlags(kCFAllocatorDefault,
kSecAttrAccessibleWhenUnlockedThisDeviceOnly,
flags,
&accessError)
if let error = accessError {
throw error.takeRetainedValue() as Error
if let error = unsafe accessError {
throw unsafe error.takeRetainedValue() as Error
}
let dataRep: Data
let publicKey: Data
@ -214,7 +214,7 @@ extension SecureEnclave.Store {
kSecReturnAttributes: true
])
var untyped: CFTypeRef?
SecItemCopyMatching(queryAttributes, &untyped)
unsafe SecItemCopyMatching(queryAttributes, &untyped)
guard let typed = untyped as? [[CFString: Any]] else { return }
let wrapped: [SecureEnclave.Secret] = typed.compactMap {
do {

10
Sources/Packages/Sources/SmartCardSecretKit/SmartCardStore.swift
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@ -1,7 +1,7 @@
import Foundation
import Observation
import Security
@preconcurrency import CryptoTokenKit
@unsafe @preconcurrency import CryptoTokenKit
import LocalAuthentication
import SecretKit
@ -70,7 +70,7 @@ extension SmartCard {
kSecReturnRef: true
])
var untyped: CFTypeRef?
let status = SecItemCopyMatching(attributes, &untyped)
let status = unsafe SecItemCopyMatching(attributes, &untyped)
if status != errSecSuccess {
throw KeychainError(statusCode: status)
}
@ -80,8 +80,8 @@ extension SmartCard {
let key = untypedSafe as! SecKey
var signError: SecurityError?
guard let algorithm = signatureAlgorithm(for: secret) else { throw UnsupportKeyType() }
guard let signature = SecKeyCreateSignature(key, algorithm, data as CFData, &signError) else {
throw SigningError(error: signError)
guard let signature = unsafe SecKeyCreateSignature(key, algorithm, data as CFData, &signError) else {
throw unsafe SigningError(error: signError)
}
return signature as Data
}
@ -152,7 +152,7 @@ extension SmartCard.Store {
kSecReturnAttributes: true
])
var untyped: CFTypeRef?
SecItemCopyMatching(attributes, &untyped)
unsafe SecItemCopyMatching(attributes, &untyped)
guard let typed = untyped as? [[CFString: Any]] else { return }
let wrapped: [SecretType] = typed.compactMap {
let name = $0[kSecAttrLabel] as? String ?? String(localized: .unnamedSecret)

15
Sources/Packages/Sources/XPCWrappers/XPCTypedSession.swift
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@ -1,21 +1,20 @@
import Foundation
public struct XPCTypedSession<ResponseType: Codable & Sendable, ErrorType: Error & Codable>: Sendable {
public struct XPCTypedSession<ResponseType: Codable & Sendable, ErrorType: Error & Codable>: ~Copyable {
private nonisolated(unsafe) let connection: NSXPCConnection
private var proxy: _XPCProtocol
private let connection: NSXPCConnection
private let proxy: _XPCProtocol
public init(serviceName: String, warmup: Bool = false) throws {
connection = NSXPCConnection(serviceName: serviceName)
public init(serviceName: String, warmup: Bool = false) async throws {
let connection = NSXPCConnection(serviceName: serviceName)
connection.remoteObjectInterface = NSXPCInterface(with: (any _XPCProtocol).self)
connection.setCodeSigningRequirement("anchor apple generic and certificate leaf[subject.OU] = Z72PRUAWF6")
connection.resume()
guard let proxy = connection.remoteObjectProxy as? _XPCProtocol else { fatalError() }
self.connection = connection
self.proxy = proxy
if warmup {
Task { [self] in
_ = try? await send()
}
_ = try? await send()
}
}

2
Sources/SecretAgent/AppDelegate.swift
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@ -34,7 +34,7 @@ class AppDelegate: NSObject, NSApplicationDelegate {
func applicationDidFinishLaunching(_ aNotification: Notification) {
logger.debug("SecretAgent finished launching")
Task {
let inputParser = try XPCAgentInputParser()
let inputParser = try await XPCAgentInputParser()
for await session in socketController.sessions {
Task {
do {

4
Sources/SecretAgent/XPCInputParser.swift
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@ -8,8 +8,8 @@ public final class XPCAgentInputParser: SSHAgentInputParserProtocol {
private let session: XPCTypedSession<SSHAgent.Request, SSHAgentInputParser.AgentParsingError>
public init() throws {
session = try XPCTypedSession(serviceName: "com.maxgoedjen.Secretive.SecretAgentInputParser", warmup: true)
public init() async throws {
session = try await XPCTypedSession(serviceName: "com.maxgoedjen.Secretive.SecretAgentInputParser", warmup: true)
}
public func parse(data: Data) async throws -> SSHAgent.Request {

3
Sources/Secretive.xcodeproj/project.pbxproj
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@ -862,6 +862,7 @@
SWIFT_ACTIVE_COMPILATION_CONDITIONS = DEBUG;
SWIFT_EMIT_LOC_STRINGS = YES;
SWIFT_OPTIMIZATION_LEVEL = "-Onone";
SWIFT_STRICT_MEMORY_SAFETY = YES;
SWIFT_TREAT_WARNINGS_AS_ERRORS = YES;
SWIFT_VERSION = 6.0;
};
@ -930,6 +931,7 @@
SWIFT_COMPILATION_MODE = wholemodule;
SWIFT_EMIT_LOC_STRINGS = YES;
SWIFT_OPTIMIZATION_LEVEL = "-O";
SWIFT_STRICT_MEMORY_SAFETY = YES;
SWIFT_TREAT_WARNINGS_AS_ERRORS = YES;
SWIFT_VERSION = 6.0;
};
@ -1304,6 +1306,7 @@
SWIFT_ACTIVE_COMPILATION_CONDITIONS = DEBUG;
SWIFT_EMIT_LOC_STRINGS = YES;
SWIFT_OPTIMIZATION_LEVEL = "-Onone";
SWIFT_STRICT_MEMORY_SAFETY = YES;
SWIFT_TREAT_WARNINGS_AS_ERRORS = YES;
SWIFT_VERSION = 6.0;
};