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debian/patches: Add identification support to synaptics driver

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It allows to unlock / log-in with any finger.

LP: #1905600
This commit is contained in:
Marco Trevisan (Treviño)
2020-11-25 18:47:41 +01:00
parent e8d6f1bd01
commit aa75b6f027
2 changed files with 180 additions and 0 deletions
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debian/patches/synaptics-add-identify-function.patch
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+179
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@@ -0,0 +1,179 @@
From: Vincent Huang <vincent.huang@tw.synaptics.com>
Date: Tue, 22 Sep 2020 17:43:57 +0800
Subject: synaptics: add identify function
Origin: https://gitlab.freedesktop.org/libfprint/libfprint/-/commit/e27b65c9
Bug-Ubuntu: https://bugs.launchpad.net/ubuntu/+source/libfprint/+bug/1905600
---
libfprint/drivers/synaptics/synaptics.c | 150 ++++++++++++++++++++++++++++++++
1 file changed, 150 insertions(+)
diff --git a/libfprint/drivers/synaptics/synaptics.c b/libfprint/drivers/synaptics/synaptics.c
index ee56271..7c76301 100644
--- a/libfprint/drivers/synaptics/synaptics.c
+++ b/libfprint/drivers/synaptics/synaptics.c
@@ -668,6 +668,155 @@ verify (FpDevice *device)
synaptics_sensor_cmd (self, 0, BMKT_CMD_VERIFY_USER, user_id, user_id_len, verify_msg_cb);
}
+static void
+identify_complete_after_finger_removal (FpiDeviceSynaptics *self)
+{
+ FpDevice *device = FP_DEVICE (self);
+
+ if (self->finger_on_sensor)
+ {
+ fp_dbg ("delaying identify report until after finger removal!");
+ self->cmd_complete_on_removal = TRUE;
+ }
+ else
+ {
+ fpi_device_identify_complete (device, NULL);
+ }
+}
+
+
+static void
+identify_msg_cb (FpiDeviceSynaptics *self,
+ bmkt_response_t *resp,
+ GError *error)
+{
+ FpDevice *device = FP_DEVICE (self);
+
+ if (error)
+ {
+ fpi_device_identify_complete (device, error);
+ return;
+ }
+
+ if (resp == NULL && self->cmd_complete_on_removal)
+ {
+ fpi_device_identify_complete (device, NULL);
+ return;
+ }
+
+ g_assert (resp != NULL);
+
+ switch (resp->response_id)
+ {
+ case BMKT_RSP_ID_READY:
+ fp_info ("Place Finger on the Sensor!");
+ break;
+
+ case BMKT_RSP_ID_FAIL:
+ if (resp->result == BMKT_SENSOR_STIMULUS_ERROR)
+ {
+ fp_info ("Match error occurred");
+ fpi_device_identify_report (device, NULL, NULL,
+ fpi_device_retry_new (FP_DEVICE_RETRY_GENERAL));
+ identify_complete_after_finger_removal (self);
+ }
+ else if (resp->result == BMKT_FP_NO_MATCH)
+ {
+ fp_info ("Print didn't match");
+ fpi_device_identify_report (device, NULL, NULL, NULL);
+ identify_complete_after_finger_removal (self);
+ }
+ else if (resp->result == BMKT_FP_DATABASE_NO_RECORD_EXISTS)
+ {
+ fp_info ("Print is not in database");
+ fpi_device_identify_complete (device,
+ fpi_device_error_new (FP_DEVICE_ERROR_DATA_NOT_FOUND));
+ }
+ else
+ {
+ fp_warn ("identify has failed: %d", resp->result);
+ fpi_device_identify_complete (device,
+ fpi_device_error_new_msg (FP_DEVICE_ERROR_PROTO,
+ "Unexpected result from device %d",
+ resp->result));
+ }
+ break;
+
+ case BMKT_RSP_ID_OK:
+ {
+ FpPrint *print = NULL;
+ GPtrArray *prints = NULL;
+ g_autoptr(GVariant) data = NULL;
+ guint8 finger;
+ const guint8 *user_id;
+ gsize user_id_len = 0;
+ gint cnt = 0;
+ gboolean find = FALSE;
+
+ fpi_device_get_identify_data (device, &prints);
+
+ for (cnt = 0; cnt < prints->len; cnt++)
+ {
+ print = g_ptr_array_index (prints, cnt);
+ g_object_get (print, "fpi-data", &data, NULL);
+ g_debug ("data is %p", data);
+ parse_print_data (data, &finger, &user_id, &user_id_len);
+ if (user_id)
+ {
+ if (memcmp (resp->response.id_resp.user_id, user_id, user_id_len) == 0)
+ {
+ find = TRUE;
+ break;
+ }
+ }
+ }
+ if(find)
+ {
+ fpi_device_identify_report (device, print, print, NULL);
+ fpi_device_identify_complete (device, NULL);
+ }
+ else
+ {
+ fpi_device_identify_report (device, NULL, NULL, NULL);
+ identify_complete_after_finger_removal (self);
+ }
+ }
+ }
+}
+
+static void
+identify (FpDevice *device)
+{
+ FpiDeviceSynaptics *self = FPI_DEVICE_SYNAPTICS (device);
+ FpPrint *print = NULL;
+ GPtrArray *prints = NULL;
+
+ g_autoptr(GVariant) data = NULL;
+ guint8 finger;
+ const guint8 *user_id;
+ gsize user_id_len = 0;
+ gint cnt = 0;
+
+ fpi_device_get_identify_data (device, &prints);
+
+ for (cnt = 0; cnt < prints->len; cnt++)
+ {
+ print = g_ptr_array_index (prints, cnt);
+ g_object_get (print, "fpi-data", &data, NULL);
+ g_debug ("data is %p", data);
+ if (!parse_print_data (data, &finger, &user_id, &user_id_len))
+ {
+ fpi_device_identify_complete (device,
+ fpi_device_error_new (FP_DEVICE_ERROR_DATA_INVALID));
+ return;
+ }
+ }
+ G_DEBUG_HERE ();
+
+ synaptics_sensor_cmd (self, 0, BMKT_CMD_ID_USER, NULL, 0, identify_msg_cb);
+}
+
+
static void
enroll_msg_cb (FpiDeviceSynaptics *self,
bmkt_response_t *resp,
@@ -1161,6 +1310,7 @@ fpi_device_synaptics_class_init (FpiDeviceSynapticsClass *klass)
dev_class->close = dev_exit;
dev_class->probe = dev_probe;
dev_class->verify = verify;
+ dev_class->identify = identify;
dev_class->enroll = enroll;
dev_class->delete = delete_print;
dev_class->cancel = cancel;