1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
|
/* $Id: UsbTestServiceGadgetHostUsbIp.cpp $ */
/** @file
* UsbTestServ - Remote USB test configuration and execution server, USB gadget host interface
* for USB/IP.
*/
/*
* Copyright (C) 2016-2023 Oracle and/or its affiliates.
*
* This file is part of VirtualBox base platform packages, as
* available from https://www.virtualbox.org.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation, in version 3 of the
* License.
*
* This program 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
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <https://www.gnu.org/licenses>.
*
* The contents of this file may alternatively be used under the terms
* of the Common Development and Distribution License Version 1.0
* (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
* in the VirtualBox distribution, in which case the provisions of the
* CDDL are applicable instead of those of the GPL.
*
* You may elect to license modified versions of this file under the
* terms and conditions of either the GPL or the CDDL or both.
*
* SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
*/
/*********************************************************************************************************************************
* Header Files *
*********************************************************************************************************************************/
#include <iprt/asm.h>
#include <iprt/ctype.h>
#include <iprt/err.h>
#include <iprt/env.h>
#include <iprt/mem.h>
#include <iprt/process.h>
#include <iprt/string.h>
#include <iprt/thread.h>
#include <iprt/time.h>
#include "UsbTestServiceGadgetHostInternal.h"
#include "UsbTestServicePlatform.h"
/*********************************************************************************************************************************
* Constants And Macros, Structures and Typedefs *
*********************************************************************************************************************************/
/**
* Internal UTS gadget host instance data.
*/
typedef struct UTSGADGETHOSTTYPEINT
{
/** Handle to the USB/IP daemon process. */
RTPROCESS hProcUsbIp;
} UTSGADGETHOSTTYPEINT;
/** Default port of the USB/IP server. */
#define UTS_GADGET_HOST_USBIP_PORT_DEF 3240
/*********************************************************************************************************************************
* Internal Functions *
*********************************************************************************************************************************/
/**
* Worker for binding/unbinding the given gadget from the USB/IP server.
*
* @returns IPRT status code.
* @param pThis The gadget host instance.
* @param hGadget The gadget handle.
* @param fBind Flag whether to do a bind or unbind.
*/
static int usbGadgetHostUsbIpBindUnbind(PUTSGADGETHOSTTYPEINT pThis, UTSGADGET hGadget, bool fBind)
{
RT_NOREF1(pThis);
uint32_t uBusId, uDevId;
char aszBus[32];
uBusId = utsGadgetGetBusId(hGadget);
uDevId = utsGadgetGetDevId(hGadget);
/* Create the busid argument string. */
size_t cbRet = RTStrPrintf(&aszBus[0], RT_ELEMENTS(aszBus), "%u-%u", uBusId, uDevId);
if (cbRet == RT_ELEMENTS(aszBus))
return VERR_BUFFER_OVERFLOW;
/* Bind to the USB/IP server. */
RTPROCESS hProcUsbIp = NIL_RTPROCESS;
const char *apszArgv[5];
apszArgv[0] = "usbip";
apszArgv[1] = fBind ? "bind" : "unbind";
apszArgv[2] = "-b";
apszArgv[3] = &aszBus[0];
apszArgv[4] = NULL;
int rc = RTProcCreate("usbip", apszArgv, RTENV_DEFAULT, RTPROC_FLAGS_SEARCH_PATH, &hProcUsbIp);
if (RT_SUCCESS(rc))
{
RTPROCSTATUS ProcSts;
rc = RTProcWait(hProcUsbIp, RTPROCWAIT_FLAGS_BLOCK, &ProcSts);
if (RT_SUCCESS(rc))
{
/* Evaluate the process status. */
if ( ProcSts.enmReason != RTPROCEXITREASON_NORMAL
|| ProcSts.iStatus != 0)
rc = VERR_UNRESOLVED_ERROR; /** @todo Log and give finer grained status code. */
}
}
return rc;
}
/**
* @interface_method_impl{UTSGADGETHOSTIF,pfnInit}
*/
static DECLCALLBACK(int) utsGadgetHostUsbIpInit(PUTSGADGETHOSTTYPEINT pIf, PCUTSGADGETCFGITEM paCfg)
{
int rc = VINF_SUCCESS;
uint16_t uPort = 0;
pIf->hProcUsbIp = NIL_RTPROCESS;
rc = utsGadgetCfgQueryU16Def(paCfg, "UsbIp/Port", &uPort, UTS_GADGET_HOST_USBIP_PORT_DEF);
if (RT_SUCCESS(rc))
{
/* Make sure the kernel drivers are loaded. */
rc = utsPlatformModuleLoad("usbip-core", NULL, 0);
if (RT_SUCCESS(rc))
{
rc = utsPlatformModuleLoad("usbip-host", NULL, 0);
if (RT_SUCCESS(rc))
{
char aszPort[10];
char aszPidFile[64];
const char *apszArgv[6];
RTStrPrintf(aszPort, RT_ELEMENTS(aszPort), "%u", uPort);
RTStrPrintf(aszPidFile, RT_ELEMENTS(aszPidFile), "/var/run/usbipd-%u.pid", uPort);
/* Start the USB/IP server process. */
apszArgv[0] = "usbipd";
apszArgv[1] = "--tcp-port";
apszArgv[2] = aszPort;
apszArgv[3] = "--pid";
apszArgv[4] = aszPidFile;
apszArgv[5] = NULL;
rc = RTProcCreate("usbipd", apszArgv, RTENV_DEFAULT, RTPROC_FLAGS_SEARCH_PATH, &pIf->hProcUsbIp);
if (RT_SUCCESS(rc))
{
/* Wait for a bit to make sure the server started up successfully. */
uint64_t tsStart = RTTimeMilliTS();
do
{
RTPROCSTATUS ProcSts;
rc = RTProcWait(pIf->hProcUsbIp, RTPROCWAIT_FLAGS_NOBLOCK, &ProcSts);
if (rc != VERR_PROCESS_RUNNING)
{
rc = VERR_INVALID_HANDLE;
break;
}
RTThreadSleep(1);
rc = VINF_SUCCESS;
} while (RTTimeMilliTS() - tsStart < 2 * 1000); /* 2 seconds. */
}
}
}
}
return rc;
}
/**
* @interface_method_impl{UTSGADGETHOSTIF,pfnTerm}
*/
static DECLCALLBACK(void) utsGadgetHostUsbIpTerm(PUTSGADGETHOSTTYPEINT pIf)
{
/* Kill the process and wait for it to terminate. */
RTProcTerminate(pIf->hProcUsbIp);
RTPROCSTATUS ProcSts;
RTProcWait(pIf->hProcUsbIp, RTPROCWAIT_FLAGS_BLOCK, &ProcSts);
}
/**
* @interface_method_impl{UTSGADGETHOSTIF,pfnGadgetAdd}
*/
static DECLCALLBACK(int) utsGadgetHostUsbIpGadgetAdd(PUTSGADGETHOSTTYPEINT pIf, UTSGADGET hGadget)
{
/* Nothing to do so far. */
RT_NOREF2(pIf, hGadget);
return VINF_SUCCESS;
}
/**
* @interface_method_impl{UTSGADGETHOSTIF,pfnGadgetRemove}
*/
static DECLCALLBACK(int) utsGadgetHostUsbIpGadgetRemove(PUTSGADGETHOSTTYPEINT pIf, UTSGADGET hGadget)
{
/* Nothing to do so far. */
RT_NOREF2(pIf, hGadget);
return VINF_SUCCESS;
}
/**
* @interface_method_impl{UTSGADGETHOSTIF,pfnGadgetConnect}
*/
static DECLCALLBACK(int) utsGadgetHostUsbIpGadgetConnect(PUTSGADGETHOSTTYPEINT pIf, UTSGADGET hGadget)
{
return usbGadgetHostUsbIpBindUnbind(pIf, hGadget, true /* fBind */);
}
/**
* @interface_method_impl{UTSGADGETHOSTIF,pfnGadgetDisconnect}
*/
static DECLCALLBACK(int) utsGadgetHostUsbIpGadgetDisconnect(PUTSGADGETHOSTTYPEINT pIf, UTSGADGET hGadget)
{
return usbGadgetHostUsbIpBindUnbind(pIf, hGadget, false /* fBind */);
}
/**
* The gadget host interface callback table.
*/
const UTSGADGETHOSTIF g_UtsGadgetHostIfUsbIp =
{
/** enmType */
UTSGADGETHOSTTYPE_USBIP,
/** pszDesc */
"UTS USB/IP gadget host",
/** cbIf */
sizeof(UTSGADGETHOSTTYPEINT),
/** pfnInit */
utsGadgetHostUsbIpInit,
/** pfnTerm */
utsGadgetHostUsbIpTerm,
/** pfnGadgetAdd */
utsGadgetHostUsbIpGadgetAdd,
/** pfnGadgetRemove */
utsGadgetHostUsbIpGadgetRemove,
/** pfnGadgetConnect */
utsGadgetHostUsbIpGadgetConnect,
/** pfnGadgetDisconnect */
utsGadgetHostUsbIpGadgetDisconnect
};
|
