linux/tools/usb/usbip/src/usbip_network.h
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   1/* SPDX-License-Identifier: GPL-2.0 */
   2/*
   3 * Copyright (C) 2005-2007 Takahiro Hirofuchi
   4 */
   5
   6#ifndef __USBIP_NETWORK_H
   7#define __USBIP_NETWORK_H
   8
   9#ifdef HAVE_CONFIG_H
  10#include "../config.h"
  11#endif
  12
  13#include <sys/types.h>
  14
  15#include <stdint.h>
  16
  17extern int usbip_port;
  18extern char *usbip_port_string;
  19void usbip_setup_port_number(char *arg);
  20
  21/* ---------------------------------------------------------------------- */
  22/* Common header for all the kinds of PDUs. */
  23struct op_common {
  24        uint16_t version;
  25
  26#define OP_REQUEST      (0x80 << 8)
  27#define OP_REPLY        (0x00 << 8)
  28        uint16_t code;
  29
  30        /* status codes defined in usbip_common.h */
  31        uint32_t status; /* op_code status (for reply) */
  32
  33} __attribute__((packed));
  34
  35#define PACK_OP_COMMON(pack, op_common)  do {\
  36        usbip_net_pack_uint16_t(pack, &(op_common)->version);\
  37        usbip_net_pack_uint16_t(pack, &(op_common)->code);\
  38        usbip_net_pack_uint32_t(pack, &(op_common)->status);\
  39} while (0)
  40
  41/* ---------------------------------------------------------------------- */
  42/* Dummy Code */
  43#define OP_UNSPEC       0x00
  44#define OP_REQ_UNSPEC   OP_UNSPEC
  45#define OP_REP_UNSPEC   OP_UNSPEC
  46
  47/* ---------------------------------------------------------------------- */
  48/* Retrieve USB device information. (still not used) */
  49#define OP_DEVINFO      0x02
  50#define OP_REQ_DEVINFO  (OP_REQUEST | OP_DEVINFO)
  51#define OP_REP_DEVINFO  (OP_REPLY   | OP_DEVINFO)
  52
  53struct op_devinfo_request {
  54        char busid[SYSFS_BUS_ID_SIZE];
  55} __attribute__((packed));
  56
  57struct op_devinfo_reply {
  58        struct usbip_usb_device udev;
  59        struct usbip_usb_interface uinf[];
  60} __attribute__((packed));
  61
  62/* ---------------------------------------------------------------------- */
  63/* Import a remote USB device. */
  64#define OP_IMPORT       0x03
  65#define OP_REQ_IMPORT   (OP_REQUEST | OP_IMPORT)
  66#define OP_REP_IMPORT   (OP_REPLY   | OP_IMPORT)
  67
  68struct op_import_request {
  69        char busid[SYSFS_BUS_ID_SIZE];
  70} __attribute__((packed));
  71
  72struct op_import_reply {
  73        struct usbip_usb_device udev;
  74//      struct usbip_usb_interface uinf[];
  75} __attribute__((packed));
  76
  77#define PACK_OP_IMPORT_REQUEST(pack, request)  do {\
  78} while (0)
  79
  80#define PACK_OP_IMPORT_REPLY(pack, reply)  do {\
  81        usbip_net_pack_usb_device(pack, &(reply)->udev);\
  82} while (0)
  83
  84/* ---------------------------------------------------------------------- */
  85/* Export a USB device to a remote host. */
  86#define OP_EXPORT       0x06
  87#define OP_REQ_EXPORT   (OP_REQUEST | OP_EXPORT)
  88#define OP_REP_EXPORT   (OP_REPLY   | OP_EXPORT)
  89
  90struct op_export_request {
  91        struct usbip_usb_device udev;
  92} __attribute__((packed));
  93
  94struct op_export_reply {
  95        int returncode;
  96} __attribute__((packed));
  97
  98
  99#define PACK_OP_EXPORT_REQUEST(pack, request)  do {\
 100        usbip_net_pack_usb_device(pack, &(request)->udev);\
 101} while (0)
 102
 103#define PACK_OP_EXPORT_REPLY(pack, reply)  do {\
 104} while (0)
 105
 106/* ---------------------------------------------------------------------- */
 107/* un-Export a USB device from a remote host. */
 108#define OP_UNEXPORT     0x07
 109#define OP_REQ_UNEXPORT (OP_REQUEST | OP_UNEXPORT)
 110#define OP_REP_UNEXPORT (OP_REPLY   | OP_UNEXPORT)
 111
 112struct op_unexport_request {
 113        struct usbip_usb_device udev;
 114} __attribute__((packed));
 115
 116struct op_unexport_reply {
 117        int returncode;
 118} __attribute__((packed));
 119
 120#define PACK_OP_UNEXPORT_REQUEST(pack, request)  do {\
 121        usbip_net_pack_usb_device(pack, &(request)->udev);\
 122} while (0)
 123
 124#define PACK_OP_UNEXPORT_REPLY(pack, reply)  do {\
 125} while (0)
 126
 127/* ---------------------------------------------------------------------- */
 128/* Negotiate IPSec encryption key. (still not used) */
 129#define OP_CRYPKEY      0x04
 130#define OP_REQ_CRYPKEY  (OP_REQUEST | OP_CRYPKEY)
 131#define OP_REP_CRYPKEY  (OP_REPLY   | OP_CRYPKEY)
 132
 133struct op_crypkey_request {
 134        /* 128bit key */
 135        uint32_t key[4];
 136} __attribute__((packed));
 137
 138struct op_crypkey_reply {
 139        uint32_t __reserved;
 140} __attribute__((packed));
 141
 142
 143/* ---------------------------------------------------------------------- */
 144/* Retrieve the list of exported USB devices. */
 145#define OP_DEVLIST      0x05
 146#define OP_REQ_DEVLIST  (OP_REQUEST | OP_DEVLIST)
 147#define OP_REP_DEVLIST  (OP_REPLY   | OP_DEVLIST)
 148
 149struct op_devlist_request {
 150} __attribute__((packed));
 151
 152struct op_devlist_reply {
 153        uint32_t ndev;
 154        /* followed by reply_extra[] */
 155} __attribute__((packed));
 156
 157struct op_devlist_reply_extra {
 158        struct usbip_usb_device    udev;
 159        struct usbip_usb_interface uinf[];
 160} __attribute__((packed));
 161
 162#define PACK_OP_DEVLIST_REQUEST(pack, request)  do {\
 163} while (0)
 164
 165#define PACK_OP_DEVLIST_REPLY(pack, reply)  do {\
 166        usbip_net_pack_uint32_t(pack, &(reply)->ndev);\
 167} while (0)
 168
 169void usbip_net_pack_uint32_t(int pack, uint32_t *num);
 170void usbip_net_pack_uint16_t(int pack, uint16_t *num);
 171void usbip_net_pack_usb_device(int pack, struct usbip_usb_device *udev);
 172void usbip_net_pack_usb_interface(int pack, struct usbip_usb_interface *uinf);
 173
 174ssize_t usbip_net_recv(int sockfd, void *buff, size_t bufflen);
 175ssize_t usbip_net_send(int sockfd, void *buff, size_t bufflen);
 176int usbip_net_send_op_common(int sockfd, uint32_t code, uint32_t status);
 177int usbip_net_recv_op_common(int sockfd, uint16_t *code, int *status);
 178int usbip_net_set_reuseaddr(int sockfd);
 179int usbip_net_set_nodelay(int sockfd);
 180int usbip_net_set_keepalive(int sockfd);
 181int usbip_net_set_v6only(int sockfd);
 182int usbip_net_tcp_connect(char *hostname, char *port);
 183
 184#endif /* __USBIP_NETWORK_H */
 185