cachepc-qemu

Fork of AMDESE/qemu with changes for cachepc side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-qemu
Log | Files | Refs | Submodules | LICENSE | sfeed.txt

u2f.h (3272B)

      1/*
      2 * U2F USB device.
      3 *
      4 * Copyright (c) 2020 César Belley <cesar.belley@lse.epita.fr>
      5 * Written by César Belley <cesar.belley@lse.epita.fr>
      6 *
      7 * Permission is hereby granted, free of charge, to any person obtaining a copy
      8 * of this software and associated documentation files (the "Software"), to deal
      9 * in the Software without restriction, including without limitation the rights
     10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
     11 * copies of the Software, and to permit persons to whom the Software is
     12 * furnished to do so, subject to the following conditions:
     13 *
     14 * The above copyright notice and this permission notice shall be included in
     15 * all copies or substantial portions of the Software.
     16 *
     17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
     20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
     21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
     22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
     23 * THE SOFTWARE.
     24 */
     25
     26#ifndef U2F_H
     27#define U2F_H
     28
     29#include "hw/qdev-core.h"
     30
     31#define U2FHID_PACKET_SIZE 64
     32#define U2FHID_PENDING_IN_NUM 32
     33
     34typedef struct U2FKeyState U2FKeyState;
     35typedef struct U2FKeyInfo U2FKeyInfo;
     36
     37#define TYPE_U2F_KEY "u2f-key"
     38#define U2F_KEY(obj) \
     39    OBJECT_CHECK(U2FKeyState, (obj), TYPE_U2F_KEY)
     40#define U2F_KEY_CLASS(klass) \
     41    OBJECT_CLASS_CHECK(U2FKeyClass, (klass), TYPE_U2F_KEY)
     42#define U2F_KEY_GET_CLASS(obj) \
     43    OBJECT_GET_CLASS(U2FKeyClass, (obj), TYPE_U2F_KEY)
     44
     45/*
     46 * Callbacks to be used by the U2F key base device (i.e. hw/u2f.c)
     47 * to interact with its variants (i.e. hw/u2f-*.c)
     48 */
     49typedef struct U2FKeyClass {
     50    /*< private >*/
     51    USBDeviceClass parent_class;
     52
     53    /*< public >*/
     54    void (*recv_from_guest)(U2FKeyState *key,
     55                            const uint8_t packet[U2FHID_PACKET_SIZE]);
     56    void (*realize)(U2FKeyState *key, Error **errp);
     57    void (*unrealize)(U2FKeyState *key);
     58} U2FKeyClass;
     59
     60/*
     61 * State of the U2F key base device (i.e. hw/u2f.c)
     62 */
     63typedef struct U2FKeyState {
     64    USBDevice dev;
     65    USBEndpoint *ep;
     66    uint8_t idle;
     67
     68    /* Pending packets to be send to the guest */
     69    uint8_t pending_in[U2FHID_PENDING_IN_NUM][U2FHID_PACKET_SIZE];
     70    uint8_t pending_in_start;
     71    uint8_t pending_in_end;
     72    uint8_t pending_in_num;
     73} U2FKeyState;
     74
     75/*
     76 * API to be used by the U2F key device variants (i.e. hw/u2f-*.c)
     77 * to interact with the the U2F key base device (i.e. hw/u2f.c)
     78 */
     79void u2f_send_to_guest(U2FKeyState *key,
     80                       const uint8_t packet[U2FHID_PACKET_SIZE]);
     81
     82extern const VMStateDescription vmstate_u2f_key;
     83
     84#define VMSTATE_U2F_KEY(_field, _state) {                            \
     85    .name       = (stringify(_field)),                               \
     86    .size       = sizeof(U2FKeyState),                               \
     87    .vmsd       = &vmstate_u2f_key,                                  \
     88    .flags      = VMS_STRUCT,                                        \
     89    .offset     = vmstate_offset_value(_state, _field, U2FKeyState), \
     90}
     91
     92#endif /* U2F_H */