# Copyright 2019 The Fuchsia Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

import("//build/bind/bind.gni")
import("//build/config/fuchsia/rules.gni")

driver_module("zxcrypt") {
  configs += [
    "//build/config:all_source",
    "//build/config/fuchsia:enable_zircon_asserts",
  ]
  configs -= [ "//build/config/fuchsia:no_cpp_standard_library" ]
  configs += [ "//build/config/fuchsia:static_cpp_standard_library" ]
  if (is_fuchsia) {
    configs += [ "//build/unification/config:zircon-migrated" ]
  }

  sources = [
    "device-info.cc",
    "device-manager.cc",
    "device.cc",
    "extra.cc",
    "worker.cc",
  ]

  configs += [ "//build/config/fuchsia:integer-paranoia" ]

  # Until library loading is fully async, dynamically linking libraries can
  # deadlock block device drviers. All dependencies for zxcrypt should be
  # static or already linked by the devhost.  We consider libc, libzircon, and
  # libdriver safe to depend on dynamically here.
  deps = [
    ":bind",
    "//sdk/banjo/ddk.protocol.block",
    "//sdk/banjo/ddk.protocol.block.partition",
    "//sdk/banjo/ddk.protocol.block.volume",
    "//sdk/fidl/fuchsia.hardware.block.encrypted:fuchsia.hardware.block.encrypted_c",
    "//src/devices/lib/driver",
    "//src/lib/ddk",
    "//src/lib/ddktl",
    "//src/security/zxcrypt:zxcrypt-dev",
    "//zircon/public/lib/bitmap",
    "//zircon/public/lib/fbl",
    "//zircon/public/lib/pretty",
    "//zircon/public/lib/sync",
    "//zircon/public/lib/zx",
    "//zircon/system/ulib/zircon-crypto:zircon-crypto-static",
  ]

  # Make sure we don't accidentally pull in a couple of easily-added dynamic
  # library dependencies.
  assert_no_deps = [
    # This seems to get pulled in by //zircon/public/lib/driver, which is
    # needed by //src/security/zxcrypt:zxcrypt-dev.  But happily it doesn't show
    # up in our dynamically-linked shared libraries, so we're okay.
    #"//zircon/system/ulib/trace-engine",
    "//zircon/system/ulib/zircon-crypto",

    # Some day, we'd also like to be able to assert we don't pull in fdio here,
    # but it is pulled in transitively by //zircon/public/lib/driver, which is
    # needed by //src/security/zxcrypt:zxcrypt-dev for the symbol
    # |device_get_protocol|.
    #"//sdk/lib/fdio",
    "//src/security/zxcrypt:zxcrypt-fdio",
  ]
}

bind_rules("bind") {
  disable_autobind = true
  rules = "zxcrypt.bind"
  output = "zxcrypt-bind.h"
  deps = [ "//src/devices/bind/fuchsia.hardware.block" ]
}

bind_test("zxcrypt-bind-test") {
  rules = "zxcrypt.bind"
  tests = "bind-tests.json"
  deps = [ "//src/devices/bind/fuchsia.hardware.block" ]
}

group("tests") {
  testonly = true
  deps = [ ":zxcrypt-bind-test" ]
}