mirror of
https://git.proxmox.com/git/fwupd
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123 lines
3.1 KiB
C
123 lines
3.1 KiB
C
/*
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* Copyright (C) 2022 Richard Hughes <richard@hughsie.com>
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*
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* SPDX-License-Identifier: LGPL-2.1+
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*/
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#include "config.h"
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#include "fu-device-private.h"
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#include "fu-string.h"
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#include "fu-usb-device-fw-ds20.h"
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#include "fu-version.h"
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struct _FuUsbDeviceFwDs20 {
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FuUsbDeviceDs20 parent_instance;
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};
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G_DEFINE_TYPE(FuUsbDeviceFwDs20, fu_usb_device_fw_ds20, FU_TYPE_USB_DEVICE_DS20)
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#define DS20_VERSION_LOWEST ((1u << 16) | (8u << 8) | 5u)
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#define DS20_VERSION_CURRENT \
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((((guint32)FU_MAJOR_VERSION) << 16) | (((guint32)FU_MINOR_VERSION) << 8) | \
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((guint)FU_MICRO_VERSION))
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static gboolean
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fu_usb_device_fw_ds20_parse(FuUsbDeviceDs20 *self,
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GBytes *blob,
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FuUsbDevice *device,
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GError **error)
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{
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gsize bufsz = 0;
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gsize bufsz_safe = 0;
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const guint8 *buf = g_bytes_get_data(blob, &bufsz);
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g_auto(GStrv) lines = NULL;
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/* only accept Linux line-endings */
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if (g_strstr_len((const gchar *)buf, bufsz, "\r") != NULL) {
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g_set_error_literal(error,
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G_IO_ERROR,
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G_IO_ERROR_INVALID_DATA,
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"Windows line endings are not supported");
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return FALSE;
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}
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/* find the first NUL, if one exists */
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for (gsize i = 1; i < bufsz; i++) {
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if (buf[i] == '\0') {
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bufsz_safe = i - 1;
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break;
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}
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}
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/* no NUL is unexpected, but fine */
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if (bufsz == 0)
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bufsz_safe = bufsz;
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if (!g_utf8_validate((const gchar *)buf, (gssize)bufsz_safe, NULL)) {
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g_set_error_literal(error,
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G_IO_ERROR,
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G_IO_ERROR_INVALID_DATA,
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"DS20 descriptor is not valid UTF-8");
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return FALSE;
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}
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/* add payload for ->export() */
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fu_firmware_set_bytes(FU_FIRMWARE(self), blob);
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/* split into lines */
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lines = fu_strsplit((const gchar *)buf, bufsz_safe, "\n", -1);
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for (guint i = 0; lines[i] != NULL; i++) {
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g_auto(GStrv) kv = NULL;
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if (lines[i][0] == '\0')
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continue;
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kv = g_strsplit(lines[i], "=", 2);
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if (g_strv_length(kv) < 2) {
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g_set_error(error,
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G_IO_ERROR,
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G_IO_ERROR_INVALID_DATA,
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"expected key=value for '%s'",
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lines[i]);
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return FALSE;
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}
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/* it's fine to be strict here, as we checked the fwupd version was new enough in
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* FuUsbDeviceDs20Item */
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g_debug("setting ds20 device quirk '%s'='%s'", kv[0], kv[1]);
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if (!fu_device_set_quirk_kv(FU_DEVICE(device), kv[0], kv[1], error))
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return FALSE;
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}
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/* success */
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return TRUE;
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}
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static void
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fu_usb_device_fw_ds20_class_init(FuUsbDeviceFwDs20Class *klass)
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{
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FuUsbDeviceDs20Class *usb_device_ds20_klass = FU_USB_DEVICE_DS20_CLASS(klass);
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usb_device_ds20_klass->parse = fu_usb_device_fw_ds20_parse;
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}
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static void
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fu_usb_device_fw_ds20_init(FuUsbDeviceFwDs20 *self)
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{
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fu_firmware_set_version_raw(FU_FIRMWARE(self), DS20_VERSION_CURRENT);
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fu_usb_device_ds20_set_version_lowest(FU_USB_DEVICE_DS20(self), DS20_VERSION_LOWEST);
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fu_firmware_set_id(FU_FIRMWARE(self), "010aec63-f574-52cd-9dda-2852550d94f0");
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}
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/**
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* fu_usb_device_fw_ds20_new:
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*
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* Creates a new #FuUsbDeviceFwDs20.
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*
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* Returns: (transfer full): a #FuFirmware
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*
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* Since: 1.8.5
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**/
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FuFirmware *
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fu_usb_device_fw_ds20_new(void)
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{
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return g_object_new(FU_TYPE_USB_DEVICE_FW_DS20, NULL);
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}
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