list-supported: Relativate "support" statement for website

The website suggest that the devices are "supported", however, it is not clear what this means and can be read to imply that all of the devices are expected to work well and upstream will fix issues. Unfortunately, that is not really the case for all drivers. As such, add a statement that the quality and supportability of drivers varies widely.
sdcp-device: Use a key DB for testing
2021-03-08 12:34:41 +01:00 · 2021-02-18 12:28:19 +01:00 · 2021-02-18 12:28:19 +01:00 · 2021-02-18 12:28:19 +01:00 · 2021-02-18 12:28:19 +01:00 · 2021-02-18 12:28:19 +01:00
24 changed files with 2950 additions and 167 deletions
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@ -61,7 +61,7 @@ test:
    variables:
      - $CI_PIPELINE_SOURCE == "schedule"
  script:
-    - meson --werror -Ddrivers=all -Db_coverage=true . _build
+    - meson --werror -Ddrivers=all -Db_coverage=true -Dsdcp_virt_binary=/usr/local/bin/sdcp_virt_device . _build
    - ninja -C _build
    - meson test -C _build --verbose --no-stdsplit --timeout-multiplier 3
    - ninja -C _build coverage
@ -78,7 +78,7 @@ test_valgrind:
    variables:
      - $CI_PIPELINE_SOURCE == "schedule"
  script:
-    - meson -Ddrivers=all . _build
+    - meson -Ddrivers=all -Dsdcp_virt_binary=/usr/local/bin/sdcp_virt_device . _build
    - ninja -C _build
    - meson test -C _build --verbose --no-stdsplit --setup=valgrind

@ -149,5 +149,17 @@ container_fedora_build:
      - $CI_PIPELINE_SOURCE == "schedule" && $CRON_TASK == "BUILD_CI_IMAGES"
  variables:
    GIT_STRATEGY: none # no need to pull the whole tree for rebuilding the image
-    # a list of packages to install
-    FDO_DISTRIBUTION_PACKAGES: $LIBFPRINT_DEPENDENCIES
+    # a list of packages to install; we only include mbedtls here
+    FDO_DISTRIBUTION_PACKAGES: $LIBFPRINT_DEPENDENCIES mbedtls-devel
+    FDO_DISTRIBUTION_EXEC: |
+      cd /tmp
+      mkdir -p /usr/local/bin
+      git clone https://github.com/benzea/SecureDeviceConnectionProtocol.git
+      # Don't bother with cmake
+      gcc -l mbedcrypto -I SecureDeviceConnectionProtocol/src/include \
+        SecureDeviceConnectionProtocol/src/test/virt_device.c \
+        SecureDeviceConnectionProtocol/src/client/client.c \
+        SecureDeviceConnectionProtocol/src/test/helpers.c \
+        SecureDeviceConnectionProtocol/src/test/testkeys.c \
+        -o /usr/local/bin/sdcp_virt_device
+      rm -rf SecureDeviceConnectionProtocol
--- a/doc/libfprint-2-sections.txt
+++ b/doc/libfprint-2-sections.txt
@ -85,6 +85,12 @@ FP_TYPE_IMAGE_DEVICE
 FpImageDevice
 </SECTION>

+<SECTION>
+<FILE>fp-sdcp-device</FILE>
+FP_TYPE_SDCP_DEVICE
+FpSdcpDevice
+</SECTION>
+
 <SECTION>
 <FILE>fp-print</FILE>
 FP_TYPE_PRINT
@ -186,6 +192,26 @@ fpi_image_device_image_captured
 fpi_image_device_retry_scan
 </SECTION>

+<SECTION>
+<FILE>fpi-sdcp-device</FILE>
+<TITLE>Internal FpSdcpDevice</TITLE>
+FpiSdcpClaim
+FpSdcpDeviceClass
+fpi_sdcp_claim_copy
+fpi_sdcp_claim_free
+fpi_sdcp_claim_get_type
+fpi_sdcp_claim_new
+fpi_sdcp_device_connect_complete
+fpi_sdcp_device_get_connect_data
+fpi_sdcp_device_get_reconnect_data
+fpi_sdcp_device_reconnect_complete
+fpi_sdcp_device_enroll_commit_complete
+fpi_sdcp_device_enroll_ready
+fpi_sdcp_device_enroll_set_nonce
+fpi_sdcp_device_identify_retry
+fpi_sdcp_device_identify_complete
+</SECTION>
+
 <SECTION>
 <FILE>fpi-log</FILE>
 fp_dbg
--- a/doc/libfprint-docs.xml
+++ b/doc/libfprint-docs.xml
@ -28,6 +28,7 @@
    <xi:include href="xml/fp-context.xml"/>
    <xi:include href="xml/fp-device.xml"/>
    <xi:include href="xml/fp-image-device.xml"/>
+    <xi:include href="xml/fp-sdcp-device.xml"/>
    <xi:include href="xml/fp-print.xml"/>
    <xi:include href="xml/fp-image.xml"/>
  </part>
@ -38,6 +39,7 @@
      <title>Device methods for drivers</title>
      <xi:include href="xml/fpi-device.xml"/>
      <xi:include href="xml/fpi-image-device.xml"/>
+      <xi:include href="xml/fpi-sdcp-device.xml"/>
    </chapter>

    <chapter id="driver-helpers">
--- a/libfprint/drivers/virtual-sdcp.c
+++ b/libfprint/drivers/virtual-sdcp.c
@ -0,0 +1,676 @@
+/*
+ * Virtual driver for SDCP device debugging
+ *
+ * Copyright (C) 2020 Benjamin Berg <bberg@redhat.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/*
+ * This is a virtual test driver to test the basic SDCP functionality.
+ * It uses the test binaries from Microsoft, which were extended to allow
+ * a simple chat with the device.
+ * The environment variable contains the to be executed binary including
+ * arguments. This binary should be compiled from the code in
+ *   https://github.com/Microsoft/SecureDeviceConnectionProtocol
+ * or, until it is merged upstream
+ *   https://github.com/benzea/SecureDeviceConnectionProtocol
+ *
+ * Note that using this as an external executable has the advantage that we
+ * do not need to link against mbedtls or any other crypto library.
+ */
+
+#define FP_COMPONENT "virtual_sdcp"
+
+#include "fpi-log.h"
+#include "fpi-ssm.h"
+
+#include "../fpi-sdcp-device.h"
+
+#include <glib/gstdio.h>
+#include <gio/gio.h>
+
+struct _FpDeviceVirtualSdcp
+{
+  FpSdcpDevice   parent;
+
+  GSubprocess   *proc;
+  GOutputStream *proc_stdin;
+  GInputStream  *proc_stdout;
+
+  /* Only valid while a read/write is pending */
+  GByteArray *msg_out;
+  GByteArray *msg_in;
+
+  GByteArray *connect_msg;
+};
+
+G_DECLARE_FINAL_TYPE (FpDeviceVirtualSdcp, fpi_device_virtual_sdcp, FPI, DEVICE_VIRTUAL_SDCP, FpSdcpDevice)
+G_DEFINE_TYPE (FpDeviceVirtualSdcp, fpi_device_virtual_sdcp, FP_TYPE_SDCP_DEVICE)
+
+guint8 ca_1[] = {
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+  0x04
+};
+guint8 ca_2[] = {
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+  0x64, 0xC1, 0x04, 0xB3, 0x8B, 0xE9, 0xE2, 0x02, 0x31, 0x00, 0xB9, 0x20, 0x61, 0xB9, 0xD0, 0x5E,
+  0x3A, 0xA4, 0xA2, 0x8A, 0xFE, 0x1D, 0xFC, 0x27, 0x61, 0x0B, 0x98, 0x16, 0x8C, 0x02, 0x9C, 0x20,
+  0x7F, 0xEE, 0xF3, 0xCB, 0x1F, 0x0A, 0x37, 0x62, 0xB1, 0x8E, 0xCE, 0xD9, 0x9A, 0x9E, 0xAC, 0xE6,
+  0x1A, 0xD4, 0xB8, 0xF1, 0xA8, 0x2B, 0xB1, 0xB4, 0x40, 0x9B
+};
+
+
+static void
+msg_written_cb (GObject      *source_object,
+                GAsyncResult *res,
+                gpointer      user_data)
+{
+  GError *error = NULL;
+  GOutputStream *stream = G_OUTPUT_STREAM (source_object);
+  FpiSsm *ssm = user_data;
+  FpDeviceVirtualSdcp *self = FPI_DEVICE_VIRTUAL_SDCP (fpi_ssm_get_device (ssm));
+
+  g_clear_pointer (&self->msg_out, g_byte_array_unref);
+  g_assert (self->msg_out == NULL);
+
+  if (!g_output_stream_write_all_finish (stream, res, NULL, &error))
+    {
+      fpi_ssm_mark_failed (ssm, error);
+      return;
+    }
+
+  fpi_ssm_next_state (ssm);
+}
+
+static void
+msg_received_cb (GObject      *source_object,
+                 GAsyncResult *res,
+                 gpointer      user_data)
+{
+  GError *error = NULL;
+  GInputStream *stream = G_INPUT_STREAM (source_object);
+  FpiSsm *ssm = user_data;
+  FpDeviceVirtualSdcp *self = FPI_DEVICE_VIRTUAL_SDCP (fpi_ssm_get_device (ssm));
+  gsize read;
+
+  g_assert (self->msg_out == NULL);
+
+  if (!g_input_stream_read_all_finish (stream, res, &read, &error) ||
+      read != self->msg_in->len)
+    {
+      g_clear_pointer (&self->msg_in, g_byte_array_unref);
+
+      if (!error)
+        error = fpi_device_error_new_msg (FP_DEVICE_ERROR_PROTO,
+                                          "Received EOF while reading from test binary.");
+
+      fpi_ssm_mark_failed (ssm, error);
+      return;
+    }
+
+  fpi_ssm_next_state (ssm);
+}
+
+enum {
+  SEND_MESSAGE,
+  RECV_MESSAGE,
+  SEND_RECV_STATES
+};
+
+static void
+send_recv_ssm (FpiSsm *ssm, FpDevice *dev)
+{
+  FpDeviceVirtualSdcp *self = FPI_DEVICE_VIRTUAL_SDCP (dev);
+
+  switch (fpi_ssm_get_cur_state (ssm))
+    {
+    case SEND_MESSAGE:
+      g_output_stream_write_all_async (self->proc_stdin,
+                                       self->msg_out->data,
+                                       self->msg_out->len,
+                                       G_PRIORITY_DEFAULT,
+                                       fpi_device_get_cancellable (FP_DEVICE (dev)),
+                                       msg_written_cb,
+                                       ssm);
+      break;
+
+    case RECV_MESSAGE:
+      g_input_stream_read_all_async (self->proc_stdout,
+                                     self->msg_in->data,
+                                     self->msg_in->len,
+                                     G_PRIORITY_DEFAULT,
+                                     fpi_device_get_cancellable (FP_DEVICE (dev)),
+                                     msg_received_cb,
+                                     ssm);
+      break;
+    }
+}
+
+static void
+connect_2_cb (FpiSsm *ssm, FpDevice *dev, GError *error)
+{
+  g_autoptr(GBytes) recv_data = NULL;
+  g_autoptr(GBytes) r_d = NULL;
+  g_autoptr(FpiSdcpClaim) claim = NULL;
+  g_autoptr(GBytes) mac = NULL;
+  g_autoptr(GBytes) ca_1_bytes = NULL, ca_2_bytes = NULL;
+  FpDeviceVirtualSdcp *self = FPI_DEVICE_VIRTUAL_SDCP (dev);
+  guint16 cert_size;
+
+  if (error)
+    {
+      fpi_sdcp_device_connect_complete (FP_SDCP_DEVICE (dev), NULL, NULL, NULL, error);
+      g_clear_pointer (&self->connect_msg, g_byte_array_unref);
+      return;
+    }
+
+  memcpy (&cert_size, self->connect_msg->data + 32, 2);
+  g_byte_array_append (self->connect_msg, self->msg_in->data, self->msg_in->len);
+  g_clear_pointer (&self->msg_in, g_byte_array_unref);
+  /* Double check that the size is correct. */
+  g_assert (self->connect_msg->len == 32 + (2 + cert_size + 65 + 65 + 32 + 64 + 64) + 32);
+  recv_data = g_byte_array_free_to_bytes (g_steal_pointer (&self->connect_msg));
+
+  claim = fpi_sdcp_claim_new ();
+  r_d = g_bytes_new_from_bytes (recv_data, 0, 32);
+  claim->cert_m = g_bytes_new_from_bytes (recv_data, 34, cert_size);
+  claim->pk_d = g_bytes_new_from_bytes (recv_data, 34 + cert_size, 65);
+  claim->pk_f = g_bytes_new_from_bytes (recv_data, 34 + cert_size + 65, 65);
+  claim->h_f = g_bytes_new_from_bytes (recv_data, 34 + cert_size + 65 + 65, 32);
+  claim->s_m = g_bytes_new_from_bytes (recv_data, 34 + cert_size + 65 + 65 + 32, 64);
+  claim->s_d = g_bytes_new_from_bytes (recv_data, 34 + cert_size + 65 + 65 + 32 + 64, 64);
+  mac = g_bytes_new_from_bytes (recv_data, 34 + cert_size + 65 + 65 + 32 + 64 + 64, 32);
+
+  ca_1_bytes = g_bytes_new_static (ca_1, G_N_ELEMENTS (ca_1));
+  ca_2_bytes = g_bytes_new_static (ca_2, G_N_ELEMENTS (ca_2));
+
+  fpi_sdcp_device_set_intermediat_cas (FP_SDCP_DEVICE (dev),
+                                       ca_1_bytes,
+                                       ca_2_bytes);
+
+  fpi_sdcp_device_connect_complete (FP_SDCP_DEVICE (dev), r_d, claim, mac, NULL);
+}
+
+static void
+connect_1_cb (FpiSsm *ssm, FpDevice *dev, GError *error)
+{
+  FpDeviceVirtualSdcp *self = FPI_DEVICE_VIRTUAL_SDCP (dev);
+  guint16 cert_size;
+
+  if (error)
+    {
+      fpi_sdcp_device_connect_complete (FP_SDCP_DEVICE (dev), NULL, NULL, NULL, error);
+      return;
+    }
+
+  g_clear_pointer (&self->connect_msg, g_byte_array_unref);
+  self->connect_msg = g_steal_pointer (&self->msg_in);
+
+  memcpy (&cert_size, self->connect_msg->data + 32, 2);
+
+  /* Nothing to send and the rest to receive. */
+  self->msg_out = g_byte_array_new ();
+  self->msg_in = g_byte_array_new ();
+  g_byte_array_set_size (self->msg_in, 32 + (2 + cert_size + 65 + 65 + 32 + 64 + 64) + 32 - self->connect_msg->len);
+
+  /* New SSM */
+  ssm = fpi_ssm_new_full (FP_DEVICE (dev), send_recv_ssm, SEND_RECV_STATES, "connect 2");
+  fpi_ssm_start (ssm, connect_2_cb);
+}
+
+static void
+connect (FpSdcpDevice *dev)
+{
+  g_autoptr(GBytes) r_h = NULL;
+  g_autoptr(GBytes) pk_h = NULL;
+  FpDeviceVirtualSdcp *self = FPI_DEVICE_VIRTUAL_SDCP (dev);
+  FpiSsm *ssm;
+
+  G_DEBUG_HERE ();
+
+  g_assert (self->proc);
+  g_assert (self->connect_msg == NULL);
+
+  fpi_sdcp_device_get_connect_data (dev, &r_h, &pk_h);
+
+  self->msg_out = g_byte_array_new ();
+  g_byte_array_append (self->msg_out, (const guint8 *) "C", 1);
+  g_byte_array_append (self->msg_out,
+                       g_bytes_get_data (r_h, NULL),
+                       g_bytes_get_size (r_h));
+  g_byte_array_append (self->msg_out,
+                       g_bytes_get_data (pk_h, NULL),
+                       g_bytes_get_size (pk_h));
+
+  self->msg_in = g_byte_array_new ();
+  g_byte_array_set_size (self->msg_in, 34);
+
+  ssm = fpi_ssm_new_full (FP_DEVICE (dev), send_recv_ssm, SEND_RECV_STATES, "connect");
+  fpi_ssm_start (ssm, connect_1_cb);
+}
+
+static void
+reconnect_cb (FpiSsm *ssm, FpDevice *dev, GError *error)
+{
+  g_autoptr(GBytes) mac = NULL;
+  FpDeviceVirtualSdcp *self = FPI_DEVICE_VIRTUAL_SDCP (dev);
+
+  if (error)
+    {
+      fpi_sdcp_device_reconnect_complete (FP_SDCP_DEVICE (dev), mac, error);
+      return;
+    }
+
+  mac = g_byte_array_free_to_bytes (g_steal_pointer (&self->msg_in));
+
+  fpi_sdcp_device_reconnect_complete (FP_SDCP_DEVICE (dev), mac, NULL);
+}
+
+static void
+reconnect (FpSdcpDevice *dev)
+{
+  g_autoptr(GBytes) r_h = NULL;
+  FpDeviceVirtualSdcp *self = FPI_DEVICE_VIRTUAL_SDCP (dev);
+  FpiSsm *ssm;
+
+  G_DEBUG_HERE ();
+
+  g_assert (self->proc);
+
+  fpi_sdcp_device_get_reconnect_data (dev, &r_h);
+
+  self->msg_out = g_byte_array_new ();
+  g_byte_array_append (self->msg_out, (const guint8 *) "R", 1);
+  g_byte_array_append (self->msg_out,
+                       g_bytes_get_data (r_h, NULL),
+                       g_bytes_get_size (r_h));
+
+  self->msg_in = g_byte_array_new ();
+  g_byte_array_set_size (self->msg_in, 32);
+
+  ssm = fpi_ssm_new_full (FP_DEVICE (dev), send_recv_ssm, SEND_RECV_STATES, "connect 2");
+  fpi_ssm_start (ssm, reconnect_cb);
+}
+
+static void
+enroll_begin_cb (FpiSsm *ssm, FpDevice *dev, GError *error)
+{
+  g_autoptr(GBytes) nonce = NULL;
+  FpDeviceVirtualSdcp *self = FPI_DEVICE_VIRTUAL_SDCP (dev);
+
+  if (error)
+    {
+      fpi_sdcp_device_enroll_ready (FP_SDCP_DEVICE (dev), error);
+      return;
+    }
+
+  nonce = g_byte_array_free_to_bytes (g_steal_pointer (&self->msg_in));
+
+  fpi_sdcp_device_enroll_set_nonce (FP_SDCP_DEVICE (dev), nonce);
+
+  /* Claim that we completed one enroll step. */
+  fpi_device_enroll_progress (dev, 1, NULL, NULL);
+
+  /* And signal that we are ready to commit. */
+  fpi_sdcp_device_enroll_ready (FP_SDCP_DEVICE (dev), NULL);
+}
+
+static void
+enroll_begin (FpSdcpDevice *dev)
+{
+  g_autoptr(GBytes) r_h = NULL;
+  FpDeviceVirtualSdcp *self = FPI_DEVICE_VIRTUAL_SDCP (dev);
+  FpiSsm *ssm;
+
+  G_DEBUG_HERE ();
+
+  g_assert (self->proc);
+
+  fpi_sdcp_device_get_reconnect_data (dev, &r_h);
+
+  self->msg_out = g_byte_array_new ();
+  g_byte_array_append (self->msg_out, (const guint8 *) "E", 1);
+
+  /* Expect 32 byte nonce */
+  self->msg_in = g_byte_array_new ();
+  g_byte_array_set_size (self->msg_in, 32);
+
+  ssm = fpi_ssm_new_full (FP_DEVICE (dev), send_recv_ssm, SEND_RECV_STATES, "enroll_begin");
+  fpi_ssm_start (ssm, enroll_begin_cb);
+}
+
+static void
+enroll_commit_cb (FpiSsm *ssm, FpDevice *dev, GError *error)
+{
+  FpDeviceVirtualSdcp *self = FPI_DEVICE_VIRTUAL_SDCP (dev);
+
+  g_clear_pointer (&self->msg_in, g_byte_array_unref);
+
+  if (error)
+    {
+      fpi_sdcp_device_enroll_ready (FP_SDCP_DEVICE (dev), error);
+      return;
+    }
+
+  /* Signal that we have committed. We don't expect a response
+   * from the virtual device (even though that is kind of broken).
+   */
+  fpi_sdcp_device_enroll_commit_complete (FP_SDCP_DEVICE (dev), NULL);
+}
+
+static void
+enroll_commit (FpSdcpDevice *dev, GBytes *id_in)
+{
+  g_autoptr(GBytes) r_h = NULL;
+  g_autoptr(GBytes) id = id_in;
+  FpDeviceVirtualSdcp *self = FPI_DEVICE_VIRTUAL_SDCP (dev);
+  FpiSsm *ssm;
+
+  G_DEBUG_HERE ();
+
+  g_assert (self->proc);
+
+  fpi_sdcp_device_get_reconnect_data (dev, &r_h);
+
+  self->msg_out = g_byte_array_new ();
+  self->msg_in = g_byte_array_new ();
+  if (id)
+    {
+      g_byte_array_append (self->msg_out, (const guint8 *) "F", 1);
+      g_byte_array_append (self->msg_out,
+                           g_bytes_get_data (id, NULL),
+                           g_bytes_get_size (id));
+
+      /* NOTE: No response from device, assume commit works. */
+    }
+  else
+    {
+      /* Cancel enroll (does not receive a reply) */
+      g_byte_array_append (self->msg_out, (const guint8 *) "G", 1);
+
+      /* NOTE: No response from device, assume cancellation works. */
+    }
+
+  ssm = fpi_ssm_new_full (FP_DEVICE (dev), send_recv_ssm, SEND_RECV_STATES, "enroll_commit");
+  fpi_ssm_start (ssm, enroll_commit_cb);
+}
+
+static void
+identify_cb (FpiSsm *ssm, FpDevice *dev, GError *error)
+{
+  g_autoptr(GBytes) reply = NULL;
+  g_autoptr(GBytes) id = NULL;
+  g_autoptr(GBytes) mac = NULL;
+  FpDeviceVirtualSdcp *self = FPI_DEVICE_VIRTUAL_SDCP (dev);
+
+  if (error)
+    {
+      fpi_sdcp_device_identify_complete (FP_SDCP_DEVICE (dev), NULL, NULL, error);
+      return;
+    }
+
+  reply = g_byte_array_free_to_bytes (g_steal_pointer (&self->msg_in));
+  id = g_bytes_new_from_bytes (reply, 0, 32);
+  mac = g_bytes_new_from_bytes (reply, 32, 32);
+
+  fpi_sdcp_device_identify_complete (FP_SDCP_DEVICE (self), id, mac, NULL);
+}
+
+static void
+identify (FpSdcpDevice *dev)
+{
+  g_autoptr(GBytes) nonce = NULL;
+  FpDeviceVirtualSdcp *self = FPI_DEVICE_VIRTUAL_SDCP (dev);
+  FpiSsm *ssm;
+
+  G_DEBUG_HERE ();
+
+  g_assert (self->proc);
+
+  fpi_sdcp_device_get_identify_data (dev, &nonce);
+
+  self->msg_out = g_byte_array_new ();
+  g_byte_array_append (self->msg_out, (const guint8 *) "I", 1);
+  g_byte_array_append (self->msg_out, g_bytes_get_data (nonce, NULL), g_bytes_get_size (nonce));
+
+  /* Expect 64 byte nonce */
+  self->msg_in = g_byte_array_new ();
+  g_byte_array_set_size (self->msg_in, 64);
+
+  ssm = fpi_ssm_new_full (FP_DEVICE (dev), send_recv_ssm, SEND_RECV_STATES, "identify");
+  fpi_ssm_start (ssm, identify_cb);
+}
+
+static void
+probe (FpDevice *dev)
+{
+  g_auto(GStrv) argv = NULL;
+  FpDeviceVirtualSdcp *self = FPI_DEVICE_VIRTUAL_SDCP (dev);
+  GError *error = NULL;
+  const char *env;
+
+  /* We launch the test binary alread at probe time and quit only when
+   * the object is finalized. This allows testing reconnect properly.
+   *
+   * Also, we'll fail probe if something goes wrong executing it.
+   */
+  env = fpi_device_get_virtual_env (FP_DEVICE (self));
+
+  if (!g_shell_parse_argv (env, NULL, &argv, &error))
+    goto out;
+
+  self->proc = g_subprocess_newv ((const char * const *) argv,
+                                  G_SUBPROCESS_FLAGS_STDIN_PIPE | G_SUBPROCESS_FLAGS_STDOUT_PIPE,
+                                  &error);
+  if (!self->proc)
+    goto out;
+
+  self->proc_stdin = g_object_ref (g_subprocess_get_stdin_pipe (self->proc));
+  self->proc_stdout = g_object_ref (g_subprocess_get_stdout_pipe (self->proc));
+
+
+out:
+  fpi_device_probe_complete (dev, "virtual-sdcp", NULL, error);
+}
+
+static void
+dev_close (FpDevice *dev)
+{
+  /* No-op, needs to be defined. */
+  fpi_device_close_complete (dev, NULL);
+}
+
+static void
+fpi_device_virtual_sdcp_init (FpDeviceVirtualSdcp *self)
+{
+}
+
+static void
+fpi_device_virtual_sdcp_finalize (GObject *obj)
+{
+  FpDeviceVirtualSdcp *self = FPI_DEVICE_VIRTUAL_SDCP (obj);
+
+  /* Just kill the subprocess, no need to be graceful here. */
+  if (self->proc)
+    g_subprocess_force_exit (self->proc);
+
+  g_clear_object (&self->proc);
+  g_clear_object (&self->proc_stdin);
+  g_clear_object (&self->proc_stdout);
+
+  G_OBJECT_CLASS (fpi_device_virtual_sdcp_parent_class)->finalize (obj);
+}
+
+static const FpIdEntry driver_ids[] = {
+  { .virtual_envvar = "FP_VIRTUAL_SDCP" },
+  { .virtual_envvar = NULL }
+};
+
+static void
+fpi_device_virtual_sdcp_class_init (FpDeviceVirtualSdcpClass *klass)
+{
+  GObjectClass *obj_class = G_OBJECT_CLASS (klass);
+  FpDeviceClass *dev_class = FP_DEVICE_CLASS (klass);
+  FpSdcpDeviceClass *sdcp_class = FP_SDCP_DEVICE_CLASS (klass);
+
+  obj_class->finalize = fpi_device_virtual_sdcp_finalize;
+
+  dev_class->id = FP_COMPONENT;
+  dev_class->full_name = "Virtual SDCP device talking to MS test code";
+  dev_class->type = FP_DEVICE_TYPE_VIRTUAL;
+  dev_class->id_table = driver_ids;
+  dev_class->nr_enroll_stages = 1;
+
+  /* The SDCP base class may need to override this in the long run */
+  dev_class->probe = probe;
+  dev_class->close = dev_close;
+
+  sdcp_class->connect = connect;
+  sdcp_class->reconnect = reconnect;
+
+  sdcp_class->enroll_begin = enroll_begin;
+  sdcp_class->enroll_commit = enroll_commit;
+
+  sdcp_class->identify = identify;
+}
--- a/libfprint/fp-device.h
+++ b/libfprint/fp-device.h
@ -92,6 +92,7 @@ typedef enum {
 * @FP_DEVICE_ERROR_DATA_FULL: No space on device available for operation
 * @FP_DEVICE_ERROR_DATA_DUPLICATE: Enrolling template duplicates storaged templates
 * @FP_DEVICE_ERROR_REMOVED: The device has been removed.
+ * @FP_DEVICE_ERROR_UNTRUSTED: Device cannot be trusted
 *
 * Error codes for device operations. More specific errors from other domains
 * such as #G_IO_ERROR or #G_USB_DEVICE_ERROR may also be reported.
@ -109,6 +110,7 @@ typedef enum {
  FP_DEVICE_ERROR_DATA_DUPLICATE,
  /* Leave some room to add more DATA related errors */
  FP_DEVICE_ERROR_REMOVED = 0x100,
+  FP_DEVICE_ERROR_UNTRUSTED,
 } FpDeviceError;

 GQuark fp_device_retry_quark (void);
--- a/libfprint/fp-print.c
+++ b/libfprint/fp-print.c
@ -281,7 +281,7 @@ fp_print_class_init (FpPrintClass *klass)
                       "Type",
                       "Private: The type of the print data",
                       FPI_TYPE_PRINT_TYPE,
-                       FPI_PRINT_RAW,
+                       FPI_PRINT_UNDEFINED,
                       G_PARAM_STATIC_STRINGS | G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY);

  /**
@ -582,7 +582,7 @@ fp_print_equal (FpPrint *self, FpPrint *other)
  if (g_strcmp0 (self->device_id, other->device_id))
    return FALSE;

-  if (self->type == FPI_PRINT_RAW)
+  if (self->type == FPI_PRINT_RAW || self->type == FPI_PRINT_SDCP)
    {
      return g_variant_equal (self->data, other->data);
    }
@ -847,7 +847,7 @@ fp_print_deserialize (const guchar *data,
          g_ptr_array_add (result->prints, g_steal_pointer (&xyt));
        }
    }
-  else if (type == FPI_PRINT_RAW)
+  else if (type == FPI_PRINT_RAW || type == FPI_PRINT_SDCP)
    {
      g_autoptr(GVariant) fp_data = g_variant_get_child_value (print_data, 0);

--- a/libfprint/fp-sdcp-device-private.h
+++ b/libfprint/fp-sdcp-device-private.h
@ -0,0 +1,58 @@
+/*
+ * FpSdcpDevice - A base class for SDCP enabled devices
+ * Copyright (C) 2020 Benjamin Berg <bberg@redhat.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#pragma once
+
+#include "fpi-sdcp-device.h"
+
+#include <nss.h>
+#include <keyhi.h>
+#include <keythi.h>
+#include <pk11pub.h>
+
+typedef struct
+{
+  GError *enroll_pre_commit_error;
+
+  /* XXX: Do we want a separate SDCP session object?
+   */
+
+  GPtrArray *intermediate_cas;
+
+  /* Host random for the connection */
+  guint8            host_random[32];
+
+  NSSInitContext   *nss_init_context;
+  PK11SlotInfo     *slot;
+  SECKEYPrivateKey *host_key_private;
+  SECKEYPublicKey  *host_key_public;
+
+  /* Master secret is required for reconnects.
+   * TODO: We probably want to serialize this to disk so it can survive
+   *       fprintd idle shutdown. */
+  PK11SymKey *master_secret;
+  PK11SymKey *mac_secret;
+
+} FpSdcpDevicePrivate;
+
+void fpi_sdcp_device_connect (FpSdcpDevice *self);
+void fpi_sdcp_device_reconnect (FpSdcpDevice *self);
+
+void fpi_sdcp_device_enroll (FpSdcpDevice *self);
+void fpi_sdcp_device_identify (FpSdcpDevice *self);
--- a/libfprint/fp-sdcp-device.c
+++ b/libfprint/fp-sdcp-device.c
@ -0,0 +1,141 @@
+/*
+ * FpSdcpDevice - A base class for SDCP enabled devices
+ * Copyright (C) 2020 Benjamin Berg <bberg@redhat.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#define FP_COMPONENT "sdcp_device"
+#include "fpi-log.h"
+
+#include "fp-sdcp-device-private.h"
+
+/**
+ * SECTION: fp-sdcp-device
+ * @title: FpSdcpDevice
+ * @short_description: SDCP device subclass
+ *
+ * This is a base class for devices implementing the SDCP security protocol.
+ */
+
+G_DEFINE_ABSTRACT_TYPE_WITH_PRIVATE (FpSdcpDevice, fp_sdcp_device, FP_TYPE_DEVICE)
+
+#if 0
+/* XXX: We'll very likely want/need some properties on this class. */
+enum {
+  PROP_0,
+  N_PROPS
+};
+
+static GParamSpec *properties[N_PROPS];
+#endif
+
+/*******************************************************/
+
+/* Callbacks/vfuncs */
+static void
+fp_sdcp_device_open (FpDevice *device)
+{
+  FpSdcpDevice *self = FP_SDCP_DEVICE (device);
+  FpSdcpDevicePrivate *priv = fp_sdcp_device_get_instance_private (self);
+
+  /* Try a reconnect if we still have the mac secret. */
+  if (priv->mac_secret)
+    fpi_sdcp_device_reconnect (self);
+  else
+    fpi_sdcp_device_connect (self);
+}
+
+static void
+fp_sdcp_device_enroll (FpDevice *device)
+{
+  FpSdcpDevice *self = FP_SDCP_DEVICE (device);
+
+  fpi_sdcp_device_enroll (self);
+}
+
+static void
+fp_sdcp_device_identify (FpDevice *device)
+{
+  FpSdcpDevice *self = FP_SDCP_DEVICE (device);
+
+  fpi_sdcp_device_identify (self);
+}
+
+/*********************************************************/
+
+static void
+fp_sdcp_device_finalize (GObject *object)
+{
+  FpSdcpDevice *self = (FpSdcpDevice *) object;
+  FpSdcpDevicePrivate *priv = fp_sdcp_device_get_instance_private (self);
+
+  g_clear_pointer (&priv->intermediate_cas, g_ptr_array_unref);
+  g_clear_pointer (&priv->slot, PK11_FreeSlot);
+  g_clear_pointer (&priv->host_key_private, SECKEY_DestroyPrivateKey);
+  g_clear_pointer (&priv->host_key_public, SECKEY_DestroyPublicKey);
+  g_clear_pointer (&priv->master_secret, PK11_FreeSymKey);
+  g_clear_pointer (&priv->mac_secret, PK11_FreeSymKey);
+  g_clear_pointer (&priv->nss_init_context, NSS_ShutdownContext);
+
+  G_OBJECT_CLASS (fp_sdcp_device_parent_class)->finalize (object);
+}
+
+static void
+fp_sdcp_device_get_property (GObject    *object,
+                             guint       prop_id,
+                             GValue     *value,
+                             GParamSpec *pspec)
+{
+  switch (prop_id)
+    {
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+    }
+}
+
+static void
+fp_sdcp_device_constructed (GObject *obj)
+{
+  G_OBJECT_CLASS (fp_sdcp_device_parent_class)->constructed (obj);
+}
+
+static void
+fp_sdcp_device_class_init (FpSdcpDeviceClass *klass)
+{
+  GObjectClass *object_class = G_OBJECT_CLASS (klass);
+  FpDeviceClass *fp_device_class = FP_DEVICE_CLASS (klass);
+
+  object_class->finalize = fp_sdcp_device_finalize;
+  object_class->get_property = fp_sdcp_device_get_property;
+  object_class->constructed = fp_sdcp_device_constructed;
+
+  fp_device_class->open = fp_sdcp_device_open;
+  fp_device_class->enroll = fp_sdcp_device_enroll;
+  fp_device_class->verify = fp_sdcp_device_identify;
+  fp_device_class->identify = fp_sdcp_device_identify;
+
+#if 0
+  g_object_class_install_properties (object_class, N_PROPS, properties);
+#endif
+}
+
+static void
+fp_sdcp_device_init (FpSdcpDevice *self)
+{
+  FpSdcpDevicePrivate *priv = fp_sdcp_device_get_instance_private (self);
+
+  priv->intermediate_cas = g_ptr_array_new_with_free_func ((GDestroyNotify) g_bytes_unref);
+}
--- a/libfprint/fp-sdcp-device.h
+++ b/libfprint/fp-sdcp-device.h
@ -0,0 +1,29 @@
+/*
+ * FpSdcpDevice - A base class for SDCP enabled devices
+ * Copyright (C) 2020 Benjamin Berg <bberg@redhat.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#pragma once
+
+#include <fp-device.h>
+
+G_BEGIN_DECLS
+
+#define FP_TYPE_SDCP_DEVICE (fp_sdcp_device_get_type ())
+G_DECLARE_DERIVABLE_TYPE (FpSdcpDevice, fp_sdcp_device, FP, SDCP_DEVICE, FpDevice)
+
+G_END_DECLS
--- a/libfprint/fpi-device.c
+++ b/libfprint/fpi-device.c
@ -143,6 +143,10 @@ fpi_device_error_new (FpDeviceError error)
      msg = "This device has been removed from the system.";
      break;

+    case FP_DEVICE_ERROR_UNTRUSTED:
+      msg = "Could not verify integrity of the device, it cannot be trusted!";
+      break;
+
    default:
      g_warning ("Unsupported error, returning general error instead!");
      error = FP_DEVICE_ERROR_GENERAL;
--- a/libfprint/fpi-print.h
+++ b/libfprint/fpi-print.h
@ -11,11 +11,13 @@ G_BEGIN_DECLS
 * @FPI_PRINT_UNDEFINED: Undefined type, this happens prior to enrollment
 * @FPI_PRINT_RAW: A raw print where the data is directly compared
 * @FPI_PRINT_NBIS: NBIS minutiae comparison
+ * @FPI_PRINT_SDCP: Print from an SDCP conforming device
 */
 typedef enum {
  FPI_PRINT_UNDEFINED = 0,
  FPI_PRINT_RAW,
  FPI_PRINT_NBIS,
+  FPI_PRINT_SDCP,
 } FpiPrintType;

 /**
--- a/libfprint/fpi-sdcp-device.c
+++ b/libfprint/fpi-sdcp-device.c
--- a/libfprint/fpi-sdcp-device.h
+++ b/libfprint/fpi-sdcp-device.h
@ -0,0 +1,142 @@
+/*
+ * FpSdcpDevice - A base class for SDCP enabled devices
+ * Copyright (C) 2020 Benjamin Berg <bberg@redhat.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#pragma once
+
+#include <glib-2.0/glib.h>
+#include "fpi-device.h"
+#include "fp-sdcp-device.h"
+
+/**
+ * FpiSdcpClaim:
+ * @cert_m: The per-model ECDSA certificate (x509 ASN.1 DER encoded)
+ * @pk_d: The device public key (65 bytes)
+ * @pk_f: The firmware public key (65 bytes)
+ * @h_f: The firmware hash
+ * @s_m: Signature over @pk_d using the per-model private key (64 bytes)
+ * @s_d: Signature over h_f and pk_f using the device private key (64 bytes)
+ *
+ * Structure to hold the claim as produced by the device during a secure
+ * connect. See the SDCP specification for more details.
+ *
+ * Note all of these may simply be memory views into a larger #GBytes created
+ * using g_bytes_new_from_bytes().
+ */
+struct _FpiSdcpClaim
+{
+  /*< public >*/
+  GBytes *cert_m;
+  GBytes *pk_d;
+  GBytes *pk_f;
+  GBytes *h_f;
+  GBytes *s_m;
+  GBytes *s_d;
+};
+typedef struct _FpiSdcpClaim FpiSdcpClaim;
+
+GType          fpi_sdcp_claim_get_type (void) G_GNUC_CONST;
+FpiSdcpClaim  *fpi_sdcp_claim_new (void);
+FpiSdcpClaim  *fpi_sdcp_claim_copy (FpiSdcpClaim *other);
+void           fpi_sdcp_claim_free (FpiSdcpClaim *claim);
+
+G_DEFINE_AUTOPTR_CLEANUP_FUNC (FpiSdcpClaim, fpi_sdcp_claim_free)
+
+
+/**
+ * FpSdcpDeviceClass:
+ * @connect: Establish SDCP connection. Similar to open in #FpDeviceClass
+ *   but called connect to mirror the SDCP specification.
+ * @reconnect: Perform a faster reconnect. Drivers do not need to provide this
+ *   function. If reconnect fails, then a normal connect will be tried.
+ * @enroll_begin: Start the enrollment procedure. In the absence of an error,
+ *   the driver must call fpi_sdcp_device_enroll_set_nonce() at any point. It
+ *   also must report enrollment progress using fpi_device_enroll_progress().
+ *   It should also store available metadata about the print in device memory.
+ *   The operation is completed with fpi_sdcp_device_enroll_ready().
+ * @enroll_commit: Complete the enrollment procedure. This commits the newly
+ *   enrolled print to the device memory. Will only be called if enroll_begin
+ *   succeeded. The passed id may be %NULL, in that case the driver must
+ *   abort the enrollment process. id is owned by the base class and remains
+ *   valid throughout the operation.
+ * @identify: Start identification process. On completion, the driver must call
+ *   fpi_sdcp_device_identify_complete(). To request the user to retry the
+ *   fpi_sdcp_device_identify_retry() function is used.
+ *
+ *
+ * These are the main entry points for drivers implementing SDCP.
+ *
+ * Drivers *must* eventually call the corresponding function to finish the
+ * operation.
+ *
+ * XXX: Is the use of fpi_device_action_error() acceptable?
+ *
+ * Drivers *must* also handle cancellation properly for any long running
+ * operation (i.e. any operation that requires capturing). It is entirely fine
+ * to ignore cancellation requests for short operations (e.g. open/close).
+ *
+ * This API is solely intended for drivers. It is purely internal and neither
+ * API nor ABI stable.
+ */
+struct _FpSdcpDeviceClass
+{
+  FpDeviceClass parent_class;
+
+  void          (*connect)       (FpSdcpDevice *dev);
+  void          (*reconnect)     (FpSdcpDevice *dev);
+  void          (*close)         (FpSdcpDevice *dev);
+  void          (*enroll_begin)  (FpSdcpDevice *dev);
+  void          (*enroll_commit) (FpSdcpDevice *dev,
+                                  GBytes       *id);
+  void          (*identify)      (FpSdcpDevice *dev);
+};
+
+void fpi_sdcp_device_set_intermediat_cas (FpSdcpDevice *self,
+                                          GBytes       *ca_1,
+                                          GBytes       *ca_2);
+
+void fpi_sdcp_device_get_connect_data (FpSdcpDevice *self,
+                                       GBytes      **r_h,
+                                       GBytes      **pk_h);
+void fpi_sdcp_device_connect_complete (FpSdcpDevice *self,
+                                       GBytes       *r_d,
+                                       FpiSdcpClaim *claim,
+                                       GBytes       *mac,
+                                       GError       *error);
+
+void fpi_sdcp_device_get_reconnect_data (FpSdcpDevice *self,
+                                         GBytes      **r_h);
+void fpi_sdcp_device_reconnect_complete (FpSdcpDevice *self,
+                                         GBytes       *mac,
+                                         GError       *error);
+
+void fpi_sdcp_device_enroll_set_nonce (FpSdcpDevice *self,
+                                       GBytes       *nonce);
+void fpi_sdcp_device_enroll_ready (FpSdcpDevice *self,
+                                   GError       *error);
+void fpi_sdcp_device_enroll_commit_complete (FpSdcpDevice *self,
+                                             GError       *error);
+
+void fpi_sdcp_device_get_identify_data (FpSdcpDevice *self,
+                                        GBytes      **nonce);
+void fpi_sdcp_device_identify_retry (FpSdcpDevice *self,
+                                     GError       *error);
+void fpi_sdcp_device_identify_complete (FpSdcpDevice *self,
+                                        GBytes       *id,
+                                        GBytes       *mac,
+                                        GError       *error);
--- a/libfprint/fpi-ssm.c
+++ b/libfprint/fpi-ssm.c
@ -617,6 +617,20 @@ fpi_ssm_jump_to_state_delayed (FpiSsm       *machine,
  g_source_set_name (machine->timeout, source_name);
 }

+/**
+ * fpi_ssm_get_device:
+ * @machine: an #FpiSsm state machine
+ *
+ * Returns the device that the SSM has been associated with.
+ *
+ * Returns: (transfer none): the #FpDevice.
+ */
+FpDevice *
+fpi_ssm_get_device (FpiSsm *machine)
+{
+  return machine->dev;
+}
+
 /**
 * fpi_ssm_get_cur_state:
 * @machine: an #FpiSsm state machine
--- a/libfprint/fpi-ssm.h
+++ b/libfprint/fpi-ssm.h
@ -92,6 +92,8 @@ void fpi_ssm_mark_failed (FpiSsm *machine,
 void fpi_ssm_set_data (FpiSsm        *machine,
                       gpointer       ssm_data,
                       GDestroyNotify ssm_data_destroy);
+
+FpDevice * fpi_ssm_get_device (FpiSsm *machine);
 gpointer fpi_ssm_get_data (FpiSsm *machine);
 GError * fpi_ssm_get_error (FpiSsm *machine);
 GError * fpi_ssm_dup_error (FpiSsm *machine);
--- a/libfprint/fprint-list-supported-devices.c
+++ b/libfprint/fprint-list-supported-devices.c
@ -83,6 +83,8 @@ main (int argc, char **argv)
  g_print ("\n");
  g_print ("This is a list of supported devices in libfprint's development version. Those drivers might not all be available in the stable, released version. If in doubt, contact your distribution or systems integrator for details.\n");
  g_print ("\n");
+  g_print ("The quality and functionality of drivers varies widely. libfprint maintainers may not be able to help with issues arising from their use.\n");
+  g_print ("\n");
  g_print ("## USB devices\n");
  g_print ("\n");
  g_print ("USB ID | Driver\n");
--- a/libfprint/meson.build
+++ b/libfprint/meson.build
@ -78,117 +78,146 @@ nbis_sources = [
    'nbis/mindtct/xytreps.c',
 ]

-aeslib = false
-aesx660 = false
-aes3k = false
-drivers_sources = []
-drivers_cflags = []
-foreach driver: drivers
-    if driver == 'upekts'
-        drivers_sources += [ 'drivers/upekts.c', 'drivers/upek_proto.c' ]
-    endif
-    if driver == 'upektc'
-        drivers_sources += [ 'drivers/upektc.c' ]
-    endif
-    if driver == 'upeksonly'
-        drivers_sources += [ 'drivers/upeksonly.c' ]
-    endif
-    if driver == 'uru4000'
-        drivers_sources += [ 'drivers/uru4000.c' ]
-    endif
-    if driver == 'aes1610'
-        drivers_sources += [ 'drivers/aes1610.c' ]
-        aeslib = true
-    endif
-    if driver == 'aes1660'
-        drivers_sources += [ 'drivers/aes1660.c' ]
-        aeslib = true
-        aesx660 = true
-    endif
-    if driver == 'aes2501'
-        drivers_sources += [ 'drivers/aes2501.c' ]
-        aeslib = true
-    endif
-    if driver == 'aes2550'
-        drivers_sources += [ 'drivers/aes2550.c' ]
-        aeslib = true
-    endif
-    if driver == 'aes2660'
-        drivers_sources += [ 'drivers/aes2660.c' ]
-        aeslib = true
-        aesx660 = true
-    endif
-    if driver == 'aes3500'
-        drivers_sources += [ 'drivers/aes3500.c' ]
-        aeslib = true
-        aes3k = true
-    endif
-    if driver == 'aes4000'
-        drivers_sources += [ 'drivers/aes4000.c' ]
-        aeslib = true
-        aes3k = true
-    endif
-    if driver == 'vcom5s'
-        drivers_sources += [ 'drivers/vcom5s.c' ]
-    endif
-    if driver == 'vfs101'
-        drivers_sources += [ 'drivers/vfs101.c' ]
-    endif
-    if driver == 'vfs301'
-        drivers_sources += [ 'drivers/vfs301.c', 'drivers/vfs301_proto.c' ]
-    endif
-    if driver == 'vfs5011'
-        drivers_sources += [ 'drivers/vfs5011.c' ]
-    endif
-    if driver == 'upektc_img'
-        drivers_sources += [ 'drivers/upektc_img.c',  'drivers/upek_proto.c' ]
-    endif
-    if driver == 'etes603'
-        drivers_sources += [ 'drivers/etes603.c' ]
-    endif
-    if driver == 'vfs0050'
-        drivers_sources += [ 'drivers/vfs0050.c' ]
-    endif
-    if driver == 'elan'
-        drivers_sources += [ 'drivers/elan.c' ]
-    endif
-    if driver == 'virtual_image'
-        drivers_sources += [ 'drivers/virtual-image.c' ]
-    endif
-    if driver == 'virtual_device'
-        drivers_sources += [ 'drivers/virtual-device.c' ]
-    endif
-    if driver == 'virtual_device_storage'
-        drivers_sources += [ 'drivers/virtual-device-storage.c' ]
-    endif
-    if driver.startswith('virtual_')
-        drivers_sources += [ 'drivers/virtual-device-listener.c' ]
-    endif
-    if driver == 'synaptics'
-    drivers_sources += [
-        'drivers/synaptics/synaptics.c',
-        'drivers/synaptics/bmkt_message.c',
-    ]
-    endif
-    if driver == 'goodixmoc'
-    drivers_sources += [
-        'drivers/goodixmoc/goodix.c',
-        'drivers/goodixmoc/goodix_proto.c',
-    ]
+driver_sources = {
+    'upekts' :
+        [ 'drivers/upekts.c', 'drivers/upek_proto.c' ],
+    'upektc' :
+        [ 'drivers/upektc.c' ],
+    'upeksonly' :
+        [ 'drivers/upeksonly.c' ],
+    'uru4000' :
+        [ 'drivers/uru4000.c' ],
+    'aes1610' :
+        [ 'drivers/aes1610.c' ],
+    'aes1660' :
+        [ 'drivers/aes1660.c' ],
+    'aes2501' :
+        [ 'drivers/aes2501.c' ],
+    'aes2550' :
+        [ 'drivers/aes2550.c' ],
+    'aes2660' :
+        [ 'drivers/aes2660.c' ],
+    'aes3500' :
+        [ 'drivers/aes3500.c' ],
+    'aes4000' :
+        [ 'drivers/aes4000.c' ],
+    'vcom5s' :
+        [ 'drivers/vcom5s.c' ],
+    'vfs101' :
+        [ 'drivers/vfs101.c' ],
+    'vfs301' :
+        [ 'drivers/vfs301.c', 'drivers/vfs301_proto.c' ],
+    'vfs5011' :
+        [ 'drivers/vfs5011.c' ],
+    'upektc_img' :
+        [ 'drivers/upektc_img.c',  'drivers/upek_proto.c' ],
+    'etes603' :
+        [ 'drivers/etes603.c' ],
+    'vfs0050' :
+        [ 'drivers/vfs0050.c' ],
+    'elan' :
+        [ 'drivers/elan.c' ],
+    'virtual_image' :
+        [ 'drivers/virtual-image.c' ],
+    'virtual_device' :
+        [ 'drivers/virtual-device.c' ],
+    'virtual_device_storage' :
+        [ 'drivers/virtual-device-storage.c' ],
+    'virtual_sdcp' :
+        [ 'drivers/virtual-sdcp.c' ],
+    'synaptics' :
+        [ 'drivers/synaptics/synaptics.c', 'drivers/synaptics/bmkt_message.c' ],
+    'goodixmoc' :
+        [ 'drivers/goodixmoc/goodix.c', 'drivers/goodixmoc/goodix_proto.c' ],
+}
+
+helper_sources = {
+    'sdcp' :
+        [ 'fp-sdcp-device.c', 'fpi-sdcp-device.c' ],
+    'aeslib' :
+        [ 'drivers/aeslib.c' ],
+    'aesx660' :
+        [ 'drivers/aesx660.c' ],
+    'aes3k' :
+        [ 'drivers/aes3k.c' ],
+    'virtual' :
+        [ 'drivers/virtual-device-listener.c' ],
+}
+
+driver_helpers = {
+    'aes1610' : [ 'aeslib' ],
+    'aes1660' : [ 'aeslib', 'aesx660' ],
+    'aes2501' : [ 'aeslib' ],
+    'aes2550' : [ 'aeslib' ],
+    'aes2660' : [ 'aeslib', 'aesx660' ],
+    'aes3500' : [ 'aeslib', 'aes3k' ],
+    'aes4000' : [ 'aeslib', 'aes3k' ],
+    'virtual_image'          : [ 'virtual' ],
+    'virtual_device'         : [ 'virtual' ],
+    'virtual_device_storage' : [ 'virtual' ],
+    'virtual_sdcp' : [ 'sdcp' ],
+}
+
+helpers = []
+foreach driver : drivers
+    if driver in driver_helpers
+        foreach helper : driver_helpers[driver]
+            if helper not in helpers
+                helpers += helper
+            endif
+        endforeach
    endif
 endforeach

-if aeslib
-    drivers_sources += [ 'drivers/aeslib.c' ]
-endif
-if aesx660
-    drivers_sources += ['drivers/aesx660.c' ]
-endif
-if aes3k
-    drivers_sources += ['drivers/aes3k.c' ]
-endif
+drivers_sources = []
+drivers_cflags = []
+foreach driver: drivers
+    drivers_sources += driver_sources[driver]
+endforeach
+foreach helper : helpers
+    drivers_sources += helper_sources[helper]
+endforeach

-other_sources = []
+optional_deps = []
+
+# Resolve extra dependencies
+foreach i : helpers + drivers
+    driver = i
+    foreach d, helper : driver_helpers
+        if i in helpers
+            driver = d
+            break
+        endif
+    endforeach
+
+    if i == 'aes3k'
+        imaging_dep = dependency('pixman-1', required: false)
+        if not imaging_dep.found()
+            error('pixman is required for @0@ and possibly others'.format(driver))
+        endif
+
+        libfprint_conf.set10('HAVE_PIXMAN', true)
+        optional_deps += imaging_dep
+    elif i == 'uru4000'
+        nss_dep = dependency('nss', required: false)
+        if not nss_dep.found()
+            error('nss is required for uru4000')
+        endif
+
+        optional_deps += nss_dep
+    elif i == 'sdcp'
+        nss_dep = dependency('nss', version: '>=3.55', required: false)
+        if not nss_dep.found()
+            error('nss >=3.55 is required for SDCP support (@0@ and possibly others)'.format(driver))
+        endif
+
+        optional_deps += nss_dep
+    else
+       deps = []
+       continue
+    endif
+
+endforeach

 fp_enums = gnome.mkenums_simple('fp-enums',
    sources: libfprint_public_headers,
@ -207,6 +236,28 @@ enums_dep = declare_dependency(
    sources: [ fp_enums_h, fpi_enums_h ]
 )

+# Export the drivers' types to the core code
+drivers_type_list = []
+drivers_type_func = []
+drivers_type_list += '#include <glib-object.h>'
+drivers_type_list += '#include "fpi-context.h"'
+drivers_type_list += ''
+drivers_type_func += 'GArray *'
+drivers_type_func += 'fpi_get_driver_types (void)'
+drivers_type_func += '{'
+drivers_type_func += '  GArray *drivers = g_array_new (TRUE, FALSE, sizeof (GType));'
+drivers_type_func += '  GType t;'
+drivers_type_func += ''
+foreach driver: supported_drivers
+    drivers_type_list += 'extern GType (fpi_device_' + driver + '_get_type) (void);'
+    drivers_type_func += '  t = fpi_device_' + driver + '_get_type ();'
+    drivers_type_func += '  g_array_append_val (drivers, t);'
+    drivers_type_func += ''
+endforeach
+drivers_type_list += ''
+drivers_type_func += '  return drivers;'
+drivers_type_func += '}'
+
 drivers_sources += configure_file(input: 'empty_file',
    output: 'fpi-drivers.c',
    capture: true,
@ -221,10 +272,8 @@ deps = [
    glib_dep,
    gobject_dep,
    gusb_dep,
-    imaging_dep,
    mathlib_dep,
-    nss_dep,
-]
+] + optional_deps

 # These are empty and only exist so that the include directories are created
 # in the build tree. This silences a build time warning.
@ -271,7 +320,6 @@ libfprint = shared_library(versioned_libname.split('lib')[1],
    sources: [
        fp_enums,
        libfprint_sources,
-        other_sources,
    ],
    soversion: soversion,
    version: libversion,
--- a/meson.build
+++ b/meson.build
@ -92,8 +92,8 @@ virtual_drivers = [
    'virtual_image',
    'virtual_device',
    'virtual_device_storage',
+    'virtual_sdcp',
 ]
-
 default_drivers = [
    'upektc_img',
    'vfs5011',
@ -151,29 +151,6 @@ else
    endforeach
 endif

-nss_dep = dependency('', required: false)
-imaging_dep = dependency('', required: false)
-libfprint_conf.set10('HAVE_PIXMAN', false)
-foreach driver: drivers
-    if driver == 'uru4000'
-        nss_dep = dependency('nss', required: false)
-        if not nss_dep.found()
-            error('NSS is required for the URU4000/URU4500 driver')
-        endif
-    endif
-    if driver == 'aes3500' or driver == 'aes4000'
-        imaging_dep = dependency('pixman-1', required: false)
-        if not imaging_dep.found()
-            error('pixman is required for imaging support')
-        endif
-
-        libfprint_conf.set10('HAVE_PIXMAN', true)
-    endif
-    if not all_drivers.contains(driver)
-        error('Invalid driver \'' + driver + '\'')
-    endif
-endforeach
-
 supported_drivers = []
 foreach driver: drivers
    if build_machine.endian() == 'little' or driver in endian_independent_drivers
@ -188,28 +165,6 @@ if default_drivers_are_enabled and supported_drivers != drivers
    default_drivers_are_enabled = false
 endif

-# Export the drivers' types to the core code
-drivers_type_list = []
-drivers_type_func = []
-drivers_type_list += '#include <glib-object.h>'
-drivers_type_list += '#include "fpi-context.h"'
-drivers_type_list += ''
-drivers_type_func += 'GArray *'
-drivers_type_func += 'fpi_get_driver_types (void)'
-drivers_type_func += '{'
-drivers_type_func += '  GArray *drivers = g_array_new (TRUE, FALSE, sizeof (GType));'
-drivers_type_func += '  GType t;'
-drivers_type_func += ''
-foreach driver: supported_drivers
-    drivers_type_list += 'extern GType (fpi_device_' + driver + '_get_type) (void);'
-    drivers_type_func += '  t = fpi_device_' + driver + '_get_type ();'
-    drivers_type_func += '  g_array_append_val (drivers, t);'
-    drivers_type_func += ''
-endforeach
-drivers_type_list += ''
-drivers_type_func += '  return drivers;'
-drivers_type_func += '}'
-
 root_inc = include_directories('.')

 if get_option('udev_rules')
@ -232,9 +187,11 @@ if get_option('gtk-examples')
    endif
 endif

+# Some dependency resolving happens inside here
+subdir('libfprint')
+
 configure_file(output: 'config.h', configuration: libfprint_conf)

-subdir('libfprint')
 subdir('examples')
 if get_option('doc')
    gnome = import('gnome')
--- a/meson_options.txt
+++ b/meson_options.txt
@ -22,3 +22,8 @@ option('doc',
       description: 'Whether to build the API documentation',
       type: 'boolean',
       value: true)
+
+option('sdcp_virt_binary',
+       description: 'Path to virtual SDCP test binary, please refer to CI for more details.',
+       type: 'string',
+       value: '')
--- a/scripts/uncrustify.sh
+++ b/scripts/uncrustify.sh
@ -12,8 +12,11 @@ case "$1" in
        ;;
 esac

+ARGS=4
+JOBS=4
+
 pushd "$SRCROOT"
-uncrustify -c "$CFG" $OPTS `git ls-tree --name-only -r HEAD | grep -E '.*\.[ch]$' | grep -v nbis | grep -v fpi-byte | grep -v build/`
+git ls-tree --name-only -r HEAD | grep -E '.*\.[ch]$' | grep -v nbis | grep -v fpi-byte | grep -v build/ | xargs -n$ARGS -P $JOBS uncrustify -c "$CFG" $OPTS
 RES=$?
 popd
-exit $RES
+exit $RES
--- a/tests/meson.build
+++ b/tests/meson.build
@ -12,6 +12,9 @@ envs.prepend('LD_LIBRARY_PATH', join_paths(meson.build_root(), 'libfprint'))
 # random numbers rather than proper ones)
 envs.set('FP_DEVICE_EMULATION', '1')

+# Path to SDCP virtual device binary, only used for virtual-sdcp test
+envs.set('SDCP_VIRT_BINARY', get_option('sdcp_virt_binary'))
+
 # Set a colon-separated list of native drivers we enable in tests
 envs.set('FP_DRIVERS_WHITELIST', ':'.join([
    'virtual_image',
@ -69,6 +72,7 @@ if get_option('introspection')
                    suite: ut_suite,
                    depends: libfprint_typelib,
                    env: envs,
+                    workdir: meson.current_source_dir(),
                )
            endforeach
        else
@ -79,6 +83,46 @@ if get_option('introspection')
        endif
    endforeach

+    if 'virtual_sdcp' in drivers and get_option('sdcp_virt_binary') != ''
+        python3 = find_program('python3')
+        unittest_inspector = find_program('unittest_inspector.py')
+        base_args = files('virtual-sdcp.py')
+        suite = []
+
+        r = run_command(unittest_inspector, files('virtual-sdcp.py'))
+        unit_tests = r.stdout().strip().split('\n')
+
+        if r.returncode() == 0 and unit_tests.length() > 0
+            suite += 'virtual-sdcp'
+        else
+            unit_tests = ['virtual-sdcp']
+        endif
+
+        sdcp_envs = envs
+        sdcp_envs.set('FP_DEVICE_EMULATION', '0')
+        foreach ut: unit_tests
+            ut_suite = suite
+            ut_args = base_args
+            if unit_tests.length() > 1
+                ut_args += ut
+                ut_suite += ut.split('.')[0]
+            endif
+            test(ut,
+                python3,
+                args: ut_args,
+                suite: ut_suite,
+                depends: libfprint_typelib,
+                env: sdcp_envs,
+                workdir: meson.current_source_dir(),
+            )
+        endforeach
+    else
+        test('virtual-sdcp',
+            find_program('sh'),
+            args: ['-c', 'exit 77']
+        )
+    endif
+
    foreach driver_test: drivers_tests
        driver_envs = envs
        driver_envs.set('FP_DRIVERS_WHITELIST', driver_test)
@ -89,6 +133,7 @@ if get_option('introspection')
                find_program('umockdev-test.py'),
                args: join_paths(meson.current_source_dir(), driver_test),
                env: driver_envs,
+                workdir: meson.current_source_dir(),
                suite: ['drivers'],
                timeout: 10,
                depends: libfprint_typelib,
--- a/tests/sdcp-key-db/cert9.db
+++ b/tests/sdcp-key-db/cert9.db
--- a/tests/sdcp-key-db/key4.db
+++ b/tests/sdcp-key-db/key4.db
--- a/tests/virtual-sdcp.py
+++ b/tests/virtual-sdcp.py
@ -0,0 +1,144 @@
+#!/usr/bin/env python3
+
+import sys
+try:
+    import gi
+    import os
+
+    from gi.repository import GLib, Gio
+
+    import unittest
+    import subprocess
+    import shutil
+    import tempfile
+except Exception as e:
+    print("Missing dependencies: %s" % str(e))
+    sys.exit(77)
+
+FPrint = None
+
+# Re-run the test with the passed wrapper if set
+wrapper = os.getenv('LIBFPRINT_TEST_WRAPPER')
+if wrapper:
+    wrap_cmd = wrapper.split(' ') + [sys.executable, os.path.abspath(__file__)] + \
+        sys.argv[1:]
+    os.unsetenv('LIBFPRINT_TEST_WRAPPER')
+    sys.exit(subprocess.check_call(wrap_cmd))
+
+# Only permit loading virtual_sdcp driver for tests in this file
+os.environ['FP_DRIVERS_WHITELIST'] = 'virtual_sdcp'
+
+if hasattr(os.environ, 'MESON_SOURCE_ROOT'):
+    root = os.environ['MESON_SOURCE_ROOT']
+else:
+    root = os.path.join(os.path.dirname(__file__), '..')
+
+ctx = GLib.main_context_default()
+
+class VirtualSDCP(unittest.TestCase):
+
+    @classmethod
+    def setUpClass(cls):
+        os.environ['FP_VIRTUAL_SDCP'] = os.environ['SDCP_VIRT_BINARY']
+
+        cls.ctx = FPrint.Context()
+
+        cls.dev = None
+        for dev in cls.ctx.get_devices():
+            cls.dev = dev
+            break
+
+        assert cls.dev is not None, "You need to compile with virtual_sdcp for testing"
+
+    @classmethod
+    def tearDownClass(cls):
+        del cls.dev
+        del cls.ctx
+
+    def setUp(self):
+        pass
+
+    def tearDown(self):
+        pass
+
+    def enroll(self, progress_cb=None):
+        # Enroll another print
+        template = FPrint.Print.new(self.dev)
+        template.props.finger = FPrint.Finger.LEFT_THUMB
+        template.props.username = "testuser"
+        template.props.description = "test print"
+        datetime = GLib.DateTime.new_now_local()
+        date = GLib.Date()
+        date.set_dmy(*datetime.get_ymd()[::-1])
+        template.props.enroll_date = date
+        return self.dev.enroll_sync(template, None, progress_cb, None)
+
+    def test_connect(self):
+        self.dev.open_sync()
+        self.dev.close_sync()
+
+    def test_reconnect(self):
+        # Ensure device was opened once before, this may be a reconnect if
+        # it is the same process as another test.
+        self.dev.open_sync()
+        self.dev.close_sync()
+
+        # Check that a reconnect happens on next open. To know about this, we
+        # need to parse check log messages for that.
+        success = [False]
+        def log_func(domain, level, msg):
+            print("log: '%s', '%s', '%s'" % (str(domain), str(level), msg))
+            if msg == 'Reconnect succeeded':
+                success[0] = True
+
+            # Call default handler
+            GLib.log_default_handler(domain, level, msg)
+
+        handler_id = GLib.log_set_handler('libfprint-sdcp_device', GLib.LogLevelFlags.LEVEL_DEBUG, log_func)
+        self.dev.open_sync()
+        self.dev.close_sync()
+        GLib.log_remove_handler('libfprint-sdcp_device', handler_id)
+        assert success[0]
+
+    def test_enroll(self):
+        self.dev.open_sync()
+
+        # Must return a print
+        assert isinstance(self.enroll(), FPrint.Print)
+
+        self.dev.close_sync()
+
+
+    def test_verify(self):
+        self.dev.open_sync()
+
+        # Enroll a new print (will be the last), check that it verifies
+        p = self.enroll()
+        match, dev_print = self.dev.verify_sync(p)
+        assert match
+
+        # The returned "device" print is identical
+        assert p.equal(dev_print)
+
+        # We can do the same with it
+        match, dev_print2 = self.dev.verify_sync(dev_print)
+        assert match
+
+        # Now, enroll a new print, causing the old one to not match anymore
+        # (the device always claims to see the last enrolled print).
+        self.enroll()
+        match, dev_print = self.dev.verify_sync(p)
+        assert match is False
+
+        self.dev.close_sync()
+
+if __name__ == '__main__':
+    try:
+        gi.require_version('FPrint', '2.0')
+        from gi.repository import FPrint
+    except Exception as e:
+        print("Missing dependencies: %s" % str(e))
+        sys.exit(77)
+
+    # avoid writing to stderr
+    unittest.main(testRunner=unittest.TextTestRunner(stream=sys.stdout, verbosity=2))
Author	SHA1	Message	Date
Benjamin Berg	3f13ddc40d	list-supported: Relativate "support" statement for website The website suggest that the devices are "supported", however, it is not clear what this means and can be read to imply that all of the devices are expected to work well and upstream will fix issues. Unfortunately, that is not really the case for all drivers. As such, add a statement that the quality and supportability of drivers varies widely.	2021-03-08 12:34:41 +01:00
Benjamin Berg	e0f081c6e3	sdcp-device: Use a key DB for testing	2021-02-18 12:28:19 +01:00
Benjamin Berg	ae1fb4094b	sdcp-device: Use predictable keys and random numbers for testing If FP_DEVICE_EMULATION is set, then switch to using predictable EC ephemeral key and random numbers. This should allow recording and replaying real device interactions using umockdev.	2021-02-18 12:28:19 +01:00
Benjamin Berg	13350e05a2	port to low level EC key functions This will allow creating a fixed key for testing	2021-02-18 12:28:19 +01:00
Benjamin Berg	3ea9cc90fe	saner public key param	2021-02-18 12:28:19 +01:00
Benjamin Berg	e862e8e881	fixups: use static OID data	2021-02-18 12:28:19 +01:00
Benjamin Berg	60f5cd650a	ci: Enable SDCP helper for tests	2021-02-18 12:28:19 +01:00
Benjamin Berg	7ff36888b7	tests: Add SDCP virtual device test	2021-02-18 12:28:19 +01:00
Benjamin Berg	e3043123f5	virtual-sdcp: Add a virtual SDCP device This device is designed to talk to an external executable. This executable can be provided/created using the test implementation from Microsoft.	2021-02-18 12:28:18 +01:00
Benjamin Berg	77400b7a60	sdcp: Add SDCP base class This adds a base class for SDCP devices. Not all functionality has been fully tested, in particular the code to verify the model certificate is most likely broken or incomplete. One problem there is that there is no code to find the root CA to trust. See: #257	2021-02-18 12:27:57 +01:00
Benjamin Berg	8d83e5eb38	meson: Shuffle around driver/helper definition This is in order to add a new SDCP helper without having to define more complicated logic.	2021-02-18 12:27:56 +01:00
Benjamin Berg	e59d5451cc	meson: Move source generation into libfprint meson file	2021-02-18 12:04:25 +01:00
Benjamin Berg	798bc4ee1e	scripts: Speed up uncrustify by running 4 jobs in parallel There are some large files, and in most setups (including CI runners) we have multiple cores available. Use xargs to run multiple parallel uncrustify jobs rather than one large one. Just hardcode 4 jobs and 4 files at the same time for now.	2021-02-18 12:00:52 +01:00
Benjamin Berg	0e732dbafa	ssm: Add API to get device This can be useful in some cases and it was simply missing.	2021-02-18 12:00:52 +01:00
Benjamin Berg	84112abc71	device: Add new FP_DEVICE_ERROR_UNTRUSTED error code Throw a specific error when we are unable to verify the integrety of the device.	2021-02-18 12:00:51 +01:00
Benjamin Berg	c221c6b63e	print: Add an SDCP print type For now it is identical to a RAW print. However, this is likely to change in the future.	2021-02-18 11:59:54 +01:00
Benjamin Berg	6e28b9a8c4	print: Fix pspec of print type to match real default The default is actually FPI_PRINT_UNDEFINED and not FPI_PRINT_RAW.	2021-02-18 11:59:54 +01:00
Benjamin Berg	e5589a0ec2	ci: Include SDCP test binary in image	2021-02-18 11:59:54 +01:00