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authorValentina Manea <valentina.manea.m@gmail.com>2014-08-20 00:30:59 -0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-08-25 13:38:56 -0400
commit588b48caf65c4a92af567948ec0025065e749ddf (patch)
tree6cf9771e522864db1685ffd7cabd31439fe93305 /tools/usb/usbip/libsrc
parent1ddb55275d8489d0ecd4722a997531cf26a035cb (diff)
usbip: move usbip userspace code out of staging
At this point, USB/IP userspace code is fully functional and can be moved out of staging. Signed-off-by: Valentina Manea <valentina.manea.m@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/usb/usbip/libsrc')
-rw-r--r--tools/usb/usbip/libsrc/Makefile.am8
-rw-r--r--tools/usb/usbip/libsrc/list.h136
-rw-r--r--tools/usb/usbip/libsrc/names.c504
-rw-r--r--tools/usb/usbip/libsrc/names.h41
-rw-r--r--tools/usb/usbip/libsrc/sysfs_utils.c31
-rw-r--r--tools/usb/usbip/libsrc/sysfs_utils.h8
-rw-r--r--tools/usb/usbip/libsrc/usbip_common.c285
-rw-r--r--tools/usb/usbip/libsrc/usbip_common.h137
-rw-r--r--tools/usb/usbip/libsrc/usbip_host_driver.c280
-rw-r--r--tools/usb/usbip/libsrc/usbip_host_driver.h49
-rw-r--r--tools/usb/usbip/libsrc/vhci_driver.c411
-rw-r--r--tools/usb/usbip/libsrc/vhci_driver.h59
12 files changed, 1949 insertions, 0 deletions
diff --git a/tools/usb/usbip/libsrc/Makefile.am b/tools/usb/usbip/libsrc/Makefile.am
new file mode 100644
index 000000000000..7c8f8a4d54e4
--- /dev/null
+++ b/tools/usb/usbip/libsrc/Makefile.am
@@ -0,0 +1,8 @@
1libusbip_la_CPPFLAGS = -DUSBIDS_FILE='"@USBIDS_DIR@/usb.ids"'
2libusbip_la_CFLAGS = @EXTRA_CFLAGS@
3libusbip_la_LDFLAGS = -version-info @LIBUSBIP_VERSION@
4
5lib_LTLIBRARIES := libusbip.la
6libusbip_la_SOURCES := names.c names.h usbip_host_driver.c usbip_host_driver.h \
7 usbip_common.c usbip_common.h vhci_driver.c vhci_driver.h \
8 sysfs_utils.c sysfs_utils.h
diff --git a/tools/usb/usbip/libsrc/list.h b/tools/usb/usbip/libsrc/list.h
new file mode 100644
index 000000000000..8d0c936e184f
--- /dev/null
+++ b/tools/usb/usbip/libsrc/list.h
@@ -0,0 +1,136 @@
1#ifndef _LIST_H
2#define _LIST_H
3
4/* Stripped down implementation of linked list taken
5 * from the Linux Kernel.
6 */
7
8/*
9 * Simple doubly linked list implementation.
10 *
11 * Some of the internal functions ("__xxx") are useful when
12 * manipulating whole lists rather than single entries, as
13 * sometimes we already know the next/prev entries and we can
14 * generate better code by using them directly rather than
15 * using the generic single-entry routines.
16 */
17
18struct list_head {
19 struct list_head *next, *prev;
20};
21
22#define LIST_HEAD_INIT(name) { &(name), &(name) }
23
24#define LIST_HEAD(name) \
25 struct list_head name = LIST_HEAD_INIT(name)
26
27static inline void INIT_LIST_HEAD(struct list_head *list)
28{
29 list->next = list;
30 list->prev = list;
31}
32
33/*
34 * Insert a new entry between two known consecutive entries.
35 *
36 * This is only for internal list manipulation where we know
37 * the prev/next entries already!
38 */
39static inline void __list_add(struct list_head *new,
40 struct list_head *prev,
41 struct list_head *next)
42{
43 next->prev = new;
44 new->next = next;
45 new->prev = prev;
46 prev->next = new;
47}
48
49/**
50 * list_add - add a new entry
51 * @new: new entry to be added
52 * @head: list head to add it after
53 *
54 * Insert a new entry after the specified head.
55 * This is good for implementing stacks.
56 */
57static inline void list_add(struct list_head *new, struct list_head *head)
58{
59 __list_add(new, head, head->next);
60}
61
62/*
63 * Delete a list entry by making the prev/next entries
64 * point to each other.
65 *
66 * This is only for internal list manipulation where we know
67 * the prev/next entries already!
68 */
69static inline void __list_del(struct list_head * prev, struct list_head * next)
70{
71 next->prev = prev;
72 prev->next = next;
73}
74
75#define POISON_POINTER_DELTA 0
76#define LIST_POISON1 ((void *) 0x00100100 + POISON_POINTER_DELTA)
77#define LIST_POISON2 ((void *) 0x00200200 + POISON_POINTER_DELTA)
78
79/**
80 * list_del - deletes entry from list.
81 * @entry: the element to delete from the list.
82 * Note: list_empty() on entry does not return true after this, the entry is
83 * in an undefined state.
84 */
85static inline void __list_del_entry(struct list_head *entry)
86{
87 __list_del(entry->prev, entry->next);
88}
89
90static inline void list_del(struct list_head *entry)
91{
92 __list_del(entry->prev, entry->next);
93 entry->next = LIST_POISON1;
94 entry->prev = LIST_POISON2;
95}
96
97/**
98 * list_entry - get the struct for this entry
99 * @ptr: the &struct list_head pointer.
100 * @type: the type of the struct this is embedded in.
101 * @member: the name of the list_struct within the struct.
102 */
103#define list_entry(ptr, type, member) \
104 container_of(ptr, type, member)
105/**
106 * list_for_each - iterate over a list
107 * @pos: the &struct list_head to use as a loop cursor.
108 * @head: the head for your list.
109 */
110#define list_for_each(pos, head) \
111 for (pos = (head)->next; pos != (head); pos = pos->next)
112
113/**
114 * list_for_each_safe - iterate over a list safe against removal of list entry
115 * @pos: the &struct list_head to use as a loop cursor.
116 * @n: another &struct list_head to use as temporary storage
117 * @head: the head for your list.
118 */
119#define list_for_each_safe(pos, n, head) \
120 for (pos = (head)->next, n = pos->next; pos != (head); \
121 pos = n, n = pos->next)
122
123#define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER)
124
125/**
126 * container_of - cast a member of a structure out to the containing structure
127 * @ptr: the pointer to the member.
128 * @type: the type of the container struct this is embedded in.
129 * @member: the name of the member within the struct.
130 *
131 */
132#define container_of(ptr, type, member) ({ \
133 const typeof( ((type *)0)->member ) *__mptr = (ptr); \
134 (type *)( (char *)__mptr - offsetof(type,member) );})
135
136#endif
diff --git a/tools/usb/usbip/libsrc/names.c b/tools/usb/usbip/libsrc/names.c
new file mode 100644
index 000000000000..81ff8522405c
--- /dev/null
+++ b/tools/usb/usbip/libsrc/names.c
@@ -0,0 +1,504 @@
1/*
2 * names.c -- USB name database manipulation routines
3 *
4 * Copyright (C) 1999, 2000 Thomas Sailer (sailer@ife.ee.ethz.ch)
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19 *
20 *
21 *
22 *
23 *
24 * Copyright (C) 2005 Takahiro Hirofuchi
25 * - names_deinit() is added.
26 *
27 */
28
29#include <sys/types.h>
30#include <sys/stat.h>
31#include <fcntl.h>
32#include <dirent.h>
33#include <string.h>
34#include <errno.h>
35#include <stdlib.h>
36#include <unistd.h>
37#include <stdio.h>
38#include <ctype.h>
39
40#include "names.h"
41#include "usbip_common.h"
42
43struct vendor {
44 struct vendor *next;
45 u_int16_t vendorid;
46 char name[1];
47};
48
49struct product {
50 struct product *next;
51 u_int16_t vendorid, productid;
52 char name[1];
53};
54
55struct class {
56 struct class *next;
57 u_int8_t classid;
58 char name[1];
59};
60
61struct subclass {
62 struct subclass *next;
63 u_int8_t classid, subclassid;
64 char name[1];
65};
66
67struct protocol {
68 struct protocol *next;
69 u_int8_t classid, subclassid, protocolid;
70 char name[1];
71};
72
73struct genericstrtable {
74 struct genericstrtable *next;
75 unsigned int num;
76 char name[1];
77};
78
79
80#define HASH1 0x10
81#define HASH2 0x02
82#define HASHSZ 16
83
84static unsigned int hashnum(unsigned int num)
85{
86 unsigned int mask1 = HASH1 << 27, mask2 = HASH2 << 27;
87
88 for (; mask1 >= HASH1; mask1 >>= 1, mask2 >>= 1)
89 if (num & mask1)
90 num ^= mask2;
91 return num & (HASHSZ-1);
92}
93
94
95static struct vendor *vendors[HASHSZ] = { NULL, };
96static struct product *products[HASHSZ] = { NULL, };
97static struct class *classes[HASHSZ] = { NULL, };
98static struct subclass *subclasses[HASHSZ] = { NULL, };
99static struct protocol *protocols[HASHSZ] = { NULL, };
100
101const char *names_vendor(u_int16_t vendorid)
102{
103 struct vendor *v;
104
105 v = vendors[hashnum(vendorid)];
106 for (; v; v = v->next)
107 if (v->vendorid == vendorid)
108 return v->name;
109 return NULL;
110}
111
112const char *names_product(u_int16_t vendorid, u_int16_t productid)
113{
114 struct product *p;
115
116 p = products[hashnum((vendorid << 16) | productid)];
117 for (; p; p = p->next)
118 if (p->vendorid == vendorid && p->productid == productid)
119 return p->name;
120 return NULL;
121}
122
123const char *names_class(u_int8_t classid)
124{
125 struct class *c;
126
127 c = classes[hashnum(classid)];
128 for (; c; c = c->next)
129 if (c->classid == classid)
130 return c->name;
131 return NULL;
132}
133
134const char *names_subclass(u_int8_t classid, u_int8_t subclassid)
135{
136 struct subclass *s;
137
138 s = subclasses[hashnum((classid << 8) | subclassid)];
139 for (; s; s = s->next)
140 if (s->classid == classid && s->subclassid == subclassid)
141 return s->name;
142 return NULL;
143}
144
145const char *names_protocol(u_int8_t classid, u_int8_t subclassid,
146 u_int8_t protocolid)
147{
148 struct protocol *p;
149
150 p = protocols[hashnum((classid << 16) | (subclassid << 8)
151 | protocolid)];
152 for (; p; p = p->next)
153 if (p->classid == classid && p->subclassid == subclassid &&
154 p->protocolid == protocolid)
155 return p->name;
156 return NULL;
157}
158
159/* add a cleanup function by takahiro */
160struct pool {
161 struct pool *next;
162 void *mem;
163};
164
165static struct pool *pool_head;
166
167static void *my_malloc(size_t size)
168{
169 struct pool *p;
170
171 p = calloc(1, sizeof(struct pool));
172 if (!p)
173 return NULL;
174
175 p->mem = calloc(1, size);
176 if (!p->mem) {
177 free(p);
178 return NULL;
179 }
180
181 p->next = pool_head;
182 pool_head = p;
183
184 return p->mem;
185}
186
187void names_free(void)
188{
189 struct pool *pool;
190
191 if (!pool_head)
192 return;
193
194 for (pool = pool_head; pool != NULL; ) {
195 struct pool *tmp;
196
197 if (pool->mem)
198 free(pool->mem);
199
200 tmp = pool;
201 pool = pool->next;
202 free(tmp);
203 }
204}
205
206static int new_vendor(const char *name, u_int16_t vendorid)
207{
208 struct vendor *v;
209 unsigned int h = hashnum(vendorid);
210
211 v = vendors[h];
212 for (; v; v = v->next)
213 if (v->vendorid == vendorid)
214 return -1;
215 v = my_malloc(sizeof(struct vendor) + strlen(name));
216 if (!v)
217 return -1;
218 strcpy(v->name, name);
219 v->vendorid = vendorid;
220 v->next = vendors[h];
221 vendors[h] = v;
222 return 0;
223}
224
225static int new_product(const char *name, u_int16_t vendorid,
226 u_int16_t productid)
227{
228 struct product *p;
229 unsigned int h = hashnum((vendorid << 16) | productid);
230
231 p = products[h];
232 for (; p; p = p->next)
233 if (p->vendorid == vendorid && p->productid == productid)
234 return -1;
235 p = my_malloc(sizeof(struct product) + strlen(name));
236 if (!p)
237 return -1;
238 strcpy(p->name, name);
239 p->vendorid = vendorid;
240 p->productid = productid;
241 p->next = products[h];
242 products[h] = p;
243 return 0;
244}
245
246static int new_class(const char *name, u_int8_t classid)
247{
248 struct class *c;
249 unsigned int h = hashnum(classid);
250
251 c = classes[h];
252 for (; c; c = c->next)
253 if (c->classid == classid)
254 return -1;
255 c = my_malloc(sizeof(struct class) + strlen(name));
256 if (!c)
257 return -1;
258 strcpy(c->name, name);
259 c->classid = classid;
260 c->next = classes[h];
261 classes[h] = c;
262 return 0;
263}
264
265static int new_subclass(const char *name, u_int8_t classid, u_int8_t subclassid)
266{
267 struct subclass *s;
268 unsigned int h = hashnum((classid << 8) | subclassid);
269
270 s = subclasses[h];
271 for (; s; s = s->next)
272 if (s->classid == classid && s->subclassid == subclassid)
273 return -1;
274 s = my_malloc(sizeof(struct subclass) + strlen(name));
275 if (!s)
276 return -1;
277 strcpy(s->name, name);
278 s->classid = classid;
279 s->subclassid = subclassid;
280 s->next = subclasses[h];
281 subclasses[h] = s;
282 return 0;
283}
284
285static int new_protocol(const char *name, u_int8_t classid, u_int8_t subclassid,
286 u_int8_t protocolid)
287{
288 struct protocol *p;
289 unsigned int h = hashnum((classid << 16) | (subclassid << 8)
290 | protocolid);
291
292 p = protocols[h];
293 for (; p; p = p->next)
294 if (p->classid == classid && p->subclassid == subclassid
295 && p->protocolid == protocolid)
296 return -1;
297 p = my_malloc(sizeof(struct protocol) + strlen(name));
298 if (!p)
299 return -1;
300 strcpy(p->name, name);
301 p->classid = classid;
302 p->subclassid = subclassid;
303 p->protocolid = protocolid;
304 p->next = protocols[h];
305 protocols[h] = p;
306 return 0;
307}
308
309static void parse(FILE *f)
310{
311 char buf[512], *cp;
312 unsigned int linectr = 0;
313 int lastvendor = -1;
314 int lastclass = -1;
315 int lastsubclass = -1;
316 int lasthut = -1;
317 int lastlang = -1;
318 unsigned int u;
319
320 while (fgets(buf, sizeof(buf), f)) {
321 linectr++;
322 /* remove line ends */
323 cp = strchr(buf, '\r');
324 if (cp)
325 *cp = 0;
326 cp = strchr(buf, '\n');
327 if (cp)
328 *cp = 0;
329 if (buf[0] == '#' || !buf[0])
330 continue;
331 cp = buf;
332 if (buf[0] == 'P' && buf[1] == 'H' && buf[2] == 'Y' &&
333 buf[3] == 'S' && buf[4] == 'D' &&
334 buf[5] == 'E' && buf[6] == 'S' && /*isspace(buf[7])*/
335 buf[7] == ' ') {
336 continue;
337 }
338 if (buf[0] == 'P' && buf[1] == 'H' &&
339 buf[2] == 'Y' && /*isspace(buf[3])*/ buf[3] == ' ') {
340 continue;
341 }
342 if (buf[0] == 'B' && buf[1] == 'I' && buf[2] == 'A' &&
343 buf[3] == 'S' && /*isspace(buf[4])*/ buf[4] == ' ') {
344 continue;
345 }
346 if (buf[0] == 'L' && /*isspace(buf[1])*/ buf[1] == ' ') {
347 lasthut = lastclass = lastvendor = lastsubclass = -1;
348 /*
349 * set 1 as pseudo-id to indicate that the parser is
350 * in a `L' section.
351 */
352 lastlang = 1;
353 continue;
354 }
355 if (buf[0] == 'C' && /*isspace(buf[1])*/ buf[1] == ' ') {
356 /* class spec */
357 cp = buf+2;
358 while (isspace(*cp))
359 cp++;
360 if (!isxdigit(*cp)) {
361 err("Invalid class spec at line %u", linectr);
362 continue;
363 }
364 u = strtoul(cp, &cp, 16);
365 while (isspace(*cp))
366 cp++;
367 if (!*cp) {
368 err("Invalid class spec at line %u", linectr);
369 continue;
370 }
371 if (new_class(cp, u))
372 err("Duplicate class spec at line %u class %04x %s",
373 linectr, u, cp);
374 dbg("line %5u class %02x %s", linectr, u, cp);
375 lasthut = lastlang = lastvendor = lastsubclass = -1;
376 lastclass = u;
377 continue;
378 }
379 if (buf[0] == 'A' && buf[1] == 'T' && isspace(buf[2])) {
380 /* audio terminal type spec */
381 continue;
382 }
383 if (buf[0] == 'H' && buf[1] == 'C' && buf[2] == 'C'
384 && isspace(buf[3])) {
385 /* HID Descriptor bCountryCode */
386 continue;
387 }
388 if (isxdigit(*cp)) {
389 /* vendor */
390 u = strtoul(cp, &cp, 16);
391 while (isspace(*cp))
392 cp++;
393 if (!*cp) {
394 err("Invalid vendor spec at line %u", linectr);
395 continue;
396 }
397 if (new_vendor(cp, u))
398 err("Duplicate vendor spec at line %u vendor %04x %s",
399 linectr, u, cp);
400 dbg("line %5u vendor %04x %s", linectr, u, cp);
401 lastvendor = u;
402 lasthut = lastlang = lastclass = lastsubclass = -1;
403 continue;
404 }
405 if (buf[0] == '\t' && isxdigit(buf[1])) {
406 /* product or subclass spec */
407 u = strtoul(buf+1, &cp, 16);
408 while (isspace(*cp))
409 cp++;
410 if (!*cp) {
411 err("Invalid product/subclass spec at line %u",
412 linectr);
413 continue;
414 }
415 if (lastvendor != -1) {
416 if (new_product(cp, lastvendor, u))
417 err("Duplicate product spec at line %u product %04x:%04x %s",
418 linectr, lastvendor, u, cp);
419 dbg("line %5u product %04x:%04x %s", linectr,
420 lastvendor, u, cp);
421 continue;
422 }
423 if (lastclass != -1) {
424 if (new_subclass(cp, lastclass, u))
425 err("Duplicate subclass spec at line %u class %02x:%02x %s",
426 linectr, lastclass, u, cp);
427 dbg("line %5u subclass %02x:%02x %s", linectr,
428 lastclass, u, cp);
429 lastsubclass = u;
430 continue;
431 }
432 if (lasthut != -1) {
433 /* do not store hut */
434 continue;
435 }
436 if (lastlang != -1) {
437 /* do not store langid */
438 continue;
439 }
440 err("Product/Subclass spec without prior Vendor/Class spec at line %u",
441 linectr);
442 continue;
443 }
444 if (buf[0] == '\t' && buf[1] == '\t' && isxdigit(buf[2])) {
445 /* protocol spec */
446 u = strtoul(buf+2, &cp, 16);
447 while (isspace(*cp))
448 cp++;
449 if (!*cp) {
450 err("Invalid protocol spec at line %u",
451 linectr);
452 continue;
453 }
454 if (lastclass != -1 && lastsubclass != -1) {
455 if (new_protocol(cp, lastclass, lastsubclass,
456 u))
457 err("Duplicate protocol spec at line %u class %02x:%02x:%02x %s",
458 linectr, lastclass, lastsubclass,
459 u, cp);
460 dbg("line %5u protocol %02x:%02x:%02x %s",
461 linectr, lastclass, lastsubclass, u, cp);
462 continue;
463 }
464 err("Protocol spec without prior Class and Subclass spec at line %u",
465 linectr);
466 continue;
467 }
468 if (buf[0] == 'H' && buf[1] == 'I' &&
469 buf[2] == 'D' && /*isspace(buf[3])*/ buf[3] == ' ') {
470 continue;
471 }
472 if (buf[0] == 'H' && buf[1] == 'U' &&
473 buf[2] == 'T' && /*isspace(buf[3])*/ buf[3] == ' ') {
474 lastlang = lastclass = lastvendor = lastsubclass = -1;
475 /*
476 * set 1 as pseudo-id to indicate that the parser is
477 * in a `HUT' section.
478 */
479 lasthut = 1;
480 continue;
481 }
482 if (buf[0] == 'R' && buf[1] == ' ')
483 continue;
484
485 if (buf[0] == 'V' && buf[1] == 'T')
486 continue;
487
488 err("Unknown line at line %u", linectr);
489 }
490}
491
492
493int names_init(char *n)
494{
495 FILE *f;
496
497 f = fopen(n, "r");
498 if (!f)
499 return errno;
500
501 parse(f);
502 fclose(f);
503 return 0;
504}
diff --git a/tools/usb/usbip/libsrc/names.h b/tools/usb/usbip/libsrc/names.h
new file mode 100644
index 000000000000..680926512de2
--- /dev/null
+++ b/tools/usb/usbip/libsrc/names.h
@@ -0,0 +1,41 @@
1/*
2 * names.h -- USB name database manipulation routines
3 *
4 * Copyright (C) 1999, 2000 Thomas Sailer (sailer@ife.ee.ethz.ch)
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19 *
20 *
21 *
22 * Copyright (C) 2005 Takahiro Hirofuchi
23 * - names_free() is added.
24 */
25
26#ifndef _NAMES_H
27#define _NAMES_H
28
29#include <sys/types.h>
30
31/* used by usbip_common.c */
32extern const char *names_vendor(u_int16_t vendorid);
33extern const char *names_product(u_int16_t vendorid, u_int16_t productid);
34extern const char *names_class(u_int8_t classid);
35extern const char *names_subclass(u_int8_t classid, u_int8_t subclassid);
36extern const char *names_protocol(u_int8_t classid, u_int8_t subclassid,
37 u_int8_t protocolid);
38extern int names_init(char *n);
39extern void names_free(void);
40
41#endif /* _NAMES_H */
diff --git a/tools/usb/usbip/libsrc/sysfs_utils.c b/tools/usb/usbip/libsrc/sysfs_utils.c
new file mode 100644
index 000000000000..36ac88ece0b8
--- /dev/null
+++ b/tools/usb/usbip/libsrc/sysfs_utils.c
@@ -0,0 +1,31 @@
1#include <sys/types.h>
2#include <sys/stat.h>
3#include <fcntl.h>
4#include <errno.h>
5
6#include "sysfs_utils.h"
7#include "usbip_common.h"
8
9int write_sysfs_attribute(const char *attr_path, const char *new_value,
10 size_t len)
11{
12 int fd;
13 int length;
14
15 fd = open(attr_path, O_WRONLY);
16 if (fd < 0) {
17 dbg("error opening attribute %s", attr_path);
18 return -1;
19 }
20
21 length = write(fd, new_value, len);
22 if (length < 0) {
23 dbg("error writing to attribute %s", attr_path);
24 close(fd);
25 return -1;
26 }
27
28 close(fd);
29
30 return 0;
31}
diff --git a/tools/usb/usbip/libsrc/sysfs_utils.h b/tools/usb/usbip/libsrc/sysfs_utils.h
new file mode 100644
index 000000000000..32ac1d105d18
--- /dev/null
+++ b/tools/usb/usbip/libsrc/sysfs_utils.h
@@ -0,0 +1,8 @@
1
2#ifndef __SYSFS_UTILS_H
3#define __SYSFS_UTILS_H
4
5int write_sysfs_attribute(const char *attr_path, const char *new_value,
6 size_t len);
7
8#endif
diff --git a/tools/usb/usbip/libsrc/usbip_common.c b/tools/usb/usbip/libsrc/usbip_common.c
new file mode 100644
index 000000000000..ac73710473de
--- /dev/null
+++ b/tools/usb/usbip/libsrc/usbip_common.c
@@ -0,0 +1,285 @@
1/*
2 * Copyright (C) 2005-2007 Takahiro Hirofuchi
3 */
4
5#include <libudev.h>
6#include "usbip_common.h"
7#include "names.h"
8
9#undef PROGNAME
10#define PROGNAME "libusbip"
11
12int usbip_use_syslog;
13int usbip_use_stderr;
14int usbip_use_debug;
15
16extern struct udev *udev_context;
17
18struct speed_string {
19 int num;
20 char *speed;
21 char *desc;
22};
23
24static const struct speed_string speed_strings[] = {
25 { USB_SPEED_UNKNOWN, "unknown", "Unknown Speed"},
26 { USB_SPEED_LOW, "1.5", "Low Speed(1.5Mbps)" },
27 { USB_SPEED_FULL, "12", "Full Speed(12Mbps)" },
28 { USB_SPEED_HIGH, "480", "High Speed(480Mbps)" },
29 { USB_SPEED_WIRELESS, "53.3-480", "Wireless"},
30 { USB_SPEED_SUPER, "5000", "Super Speed(5000Mbps)" },
31 { 0, NULL, NULL }
32};
33
34struct portst_string {
35 int num;
36 char *desc;
37};
38
39static struct portst_string portst_strings[] = {
40 { SDEV_ST_AVAILABLE, "Device Available" },
41 { SDEV_ST_USED, "Device in Use" },
42 { SDEV_ST_ERROR, "Device Error"},
43 { VDEV_ST_NULL, "Port Available"},
44 { VDEV_ST_NOTASSIGNED, "Port Initializing"},
45 { VDEV_ST_USED, "Port in Use"},
46 { VDEV_ST_ERROR, "Port Error"},
47 { 0, NULL}
48};
49
50const char *usbip_status_string(int32_t status)
51{
52 for (int i = 0; portst_strings[i].desc != NULL; i++)
53 if (portst_strings[i].num == status)
54 return portst_strings[i].desc;
55
56 return "Unknown Status";
57}
58
59const char *usbip_speed_string(int num)
60{
61 for (int i = 0; speed_strings[i].speed != NULL; i++)
62 if (speed_strings[i].num == num)
63 return speed_strings[i].desc;
64
65 return "Unknown Speed";
66}
67
68
69#define DBG_UDEV_INTEGER(name)\
70 dbg("%-20s = %x", to_string(name), (int) udev->name)
71
72#define DBG_UINF_INTEGER(name)\
73 dbg("%-20s = %x", to_string(name), (int) uinf->name)
74
75void dump_usb_interface(struct usbip_usb_interface *uinf)
76{
77 char buff[100];
78
79 usbip_names_get_class(buff, sizeof(buff),
80 uinf->bInterfaceClass,
81 uinf->bInterfaceSubClass,
82 uinf->bInterfaceProtocol);
83 dbg("%-20s = %s", "Interface(C/SC/P)", buff);
84}
85
86void dump_usb_device(struct usbip_usb_device *udev)
87{
88 char buff[100];
89
90 dbg("%-20s = %s", "path", udev->path);
91 dbg("%-20s = %s", "busid", udev->busid);
92
93 usbip_names_get_class(buff, sizeof(buff),
94 udev->bDeviceClass,
95 udev->bDeviceSubClass,
96 udev->bDeviceProtocol);
97 dbg("%-20s = %s", "Device(C/SC/P)", buff);
98
99 DBG_UDEV_INTEGER(bcdDevice);
100
101 usbip_names_get_product(buff, sizeof(buff),
102 udev->idVendor,
103 udev->idProduct);
104 dbg("%-20s = %s", "Vendor/Product", buff);
105
106 DBG_UDEV_INTEGER(bNumConfigurations);
107 DBG_UDEV_INTEGER(bNumInterfaces);
108
109 dbg("%-20s = %s", "speed",
110 usbip_speed_string(udev->speed));
111
112 DBG_UDEV_INTEGER(busnum);
113 DBG_UDEV_INTEGER(devnum);
114}
115
116
117int read_attr_value(struct udev_device *dev, const char *name,
118 const char *format)
119{
120 const char *attr;
121 int num = 0;
122 int ret;
123
124 attr = udev_device_get_sysattr_value(dev, name);
125 if (!attr) {
126 err("udev_device_get_sysattr_value failed");
127 goto err;
128 }
129
130 /* The client chooses the device configuration
131 * when attaching it so right after being bound
132 * to usbip-host on the server the device will
133 * have no configuration.
134 * Therefore, attributes such as bConfigurationValue
135 * and bNumInterfaces will not exist and sscanf will
136 * fail. Check for these cases and don't treat them
137 * as errors.
138 */
139
140 ret = sscanf(attr, format, &num);
141 if (ret < 1) {
142 if (strcmp(name, "bConfigurationValue") &&
143 strcmp(name, "bNumInterfaces")) {
144 err("sscanf failed for attribute %s", name);
145 goto err;
146 }
147 }
148
149err:
150
151 return num;
152}
153
154
155int read_attr_speed(struct udev_device *dev)
156{
157 const char *speed;
158
159 speed = udev_device_get_sysattr_value(dev, "speed");
160 if (!speed) {
161 err("udev_device_get_sysattr_value failed");
162 goto err;
163 }
164
165 for (int i = 0; speed_strings[i].speed != NULL; i++) {
166 if (!strcmp(speed, speed_strings[i].speed))
167 return speed_strings[i].num;
168 }
169
170err:
171
172 return USB_SPEED_UNKNOWN;
173}
174
175#define READ_ATTR(object, type, dev, name, format) \
176 do { \
177 (object)->name = (type) read_attr_value(dev, to_string(name), \
178 format); \
179 } while (0)
180
181
182int read_usb_device(struct udev_device *sdev, struct usbip_usb_device *udev)
183{
184 uint32_t busnum, devnum;
185 const char *path, *name;
186
187 READ_ATTR(udev, uint8_t, sdev, bDeviceClass, "%02x\n");
188 READ_ATTR(udev, uint8_t, sdev, bDeviceSubClass, "%02x\n");
189 READ_ATTR(udev, uint8_t, sdev, bDeviceProtocol, "%02x\n");
190
191 READ_ATTR(udev, uint16_t, sdev, idVendor, "%04x\n");
192 READ_ATTR(udev, uint16_t, sdev, idProduct, "%04x\n");
193 READ_ATTR(udev, uint16_t, sdev, bcdDevice, "%04x\n");
194
195 READ_ATTR(udev, uint8_t, sdev, bConfigurationValue, "%02x\n");
196 READ_ATTR(udev, uint8_t, sdev, bNumConfigurations, "%02x\n");
197 READ_ATTR(udev, uint8_t, sdev, bNumInterfaces, "%02x\n");
198
199 READ_ATTR(udev, uint8_t, sdev, devnum, "%d\n");
200 udev->speed = read_attr_speed(sdev);
201
202 path = udev_device_get_syspath(sdev);
203 name = udev_device_get_sysname(sdev);
204
205 strncpy(udev->path, path, SYSFS_PATH_MAX);
206 strncpy(udev->busid, name, SYSFS_BUS_ID_SIZE);
207
208 sscanf(name, "%u-%u", &busnum, &devnum);
209 udev->busnum = busnum;
210
211 return 0;
212}
213
214int read_usb_interface(struct usbip_usb_device *udev, int i,
215 struct usbip_usb_interface *uinf)
216{
217 char busid[SYSFS_BUS_ID_SIZE];
218 struct udev_device *sif;
219
220 sprintf(busid, "%s:%d.%d", udev->busid, udev->bConfigurationValue, i);
221
222 sif = udev_device_new_from_subsystem_sysname(udev_context, "usb", busid);
223 if (!sif) {
224 err("udev_device_new_from_subsystem_sysname %s failed", busid);
225 return -1;
226 }
227
228 READ_ATTR(uinf, uint8_t, sif, bInterfaceClass, "%02x\n");
229 READ_ATTR(uinf, uint8_t, sif, bInterfaceSubClass, "%02x\n");
230 READ_ATTR(uinf, uint8_t, sif, bInterfaceProtocol, "%02x\n");
231
232 return 0;
233}
234
235int usbip_names_init(char *f)
236{
237 return names_init(f);
238}
239
240void usbip_names_free(void)
241{
242 names_free();
243}
244
245void usbip_names_get_product(char *buff, size_t size, uint16_t vendor,
246 uint16_t product)
247{
248 const char *prod, *vend;
249
250 prod = names_product(vendor, product);
251 if (!prod)
252 prod = "unknown product";
253
254
255 vend = names_vendor(vendor);
256 if (!vend)
257 vend = "unknown vendor";
258
259 snprintf(buff, size, "%s : %s (%04x:%04x)", vend, prod, vendor, product);
260}
261
262void usbip_names_get_class(char *buff, size_t size, uint8_t class,
263 uint8_t subclass, uint8_t protocol)
264{
265 const char *c, *s, *p;
266
267 if (class == 0 && subclass == 0 && protocol == 0) {
268 snprintf(buff, size, "(Defined at Interface level) (%02x/%02x/%02x)", class, subclass, protocol);
269 return;
270 }
271
272 p = names_protocol(class, subclass, protocol);
273 if (!p)
274 p = "unknown protocol";
275
276 s = names_subclass(class, subclass);
277 if (!s)
278 s = "unknown subclass";
279
280 c = names_class(class);
281 if (!c)
282 c = "unknown class";
283
284 snprintf(buff, size, "%s / %s / %s (%02x/%02x/%02x)", c, s, p, class, subclass, protocol);
285}
diff --git a/tools/usb/usbip/libsrc/usbip_common.h b/tools/usb/usbip/libsrc/usbip_common.h
new file mode 100644
index 000000000000..5a0e95edf4df
--- /dev/null
+++ b/tools/usb/usbip/libsrc/usbip_common.h
@@ -0,0 +1,137 @@
1/*
2 * Copyright (C) 2005-2007 Takahiro Hirofuchi
3 */
4
5#ifndef __USBIP_COMMON_H
6#define __USBIP_COMMON_H
7
8#include <libudev.h>
9
10#include <stdint.h>
11#include <stdio.h>
12#include <stdlib.h>
13#include <string.h>
14
15#include <syslog.h>
16#include <unistd.h>
17#include <linux/usb/ch9.h>
18#include "../../uapi/usbip.h"
19
20#ifndef USBIDS_FILE
21#define USBIDS_FILE "/usr/share/hwdata/usb.ids"
22#endif
23
24#ifndef VHCI_STATE_PATH
25#define VHCI_STATE_PATH "/var/run/vhci_hcd"
26#endif
27
28/* kernel module names */
29#define USBIP_CORE_MOD_NAME "usbip-core"
30#define USBIP_HOST_DRV_NAME "usbip-host"
31#define USBIP_VHCI_DRV_NAME "vhci_hcd"
32
33/* sysfs constants */
34#define SYSFS_MNT_PATH "/sys"
35#define SYSFS_BUS_NAME "bus"
36#define SYSFS_BUS_TYPE "usb"
37#define SYSFS_DRIVERS_NAME "drivers"
38
39#define SYSFS_PATH_MAX 256
40#define SYSFS_BUS_ID_SIZE 32
41
42extern int usbip_use_syslog;
43extern int usbip_use_stderr;
44extern int usbip_use_debug ;
45
46#define PROGNAME "usbip"
47
48#define pr_fmt(fmt) "%s: %s: " fmt "\n", PROGNAME
49#define dbg_fmt(fmt) pr_fmt("%s:%d:[%s] " fmt), "debug", \
50 __FILE__, __LINE__, __func__
51
52#define err(fmt, args...) \
53 do { \
54 if (usbip_use_syslog) { \
55 syslog(LOG_ERR, pr_fmt(fmt), "error", ##args); \
56 } \
57 if (usbip_use_stderr) { \
58 fprintf(stderr, pr_fmt(fmt), "error", ##args); \
59 } \
60 } while (0)
61
62#define info(fmt, args...) \
63 do { \
64 if (usbip_use_syslog) { \
65 syslog(LOG_INFO, pr_fmt(fmt), "info", ##args); \
66 } \
67 if (usbip_use_stderr) { \
68 fprintf(stderr, pr_fmt(fmt), "info", ##args); \
69 } \
70 } while (0)
71
72#define dbg(fmt, args...) \
73 do { \
74 if (usbip_use_debug) { \
75 if (usbip_use_syslog) { \
76 syslog(LOG_DEBUG, dbg_fmt(fmt), ##args); \
77 } \
78 if (usbip_use_stderr) { \
79 fprintf(stderr, dbg_fmt(fmt), ##args); \
80 } \
81 } \
82 } while (0)
83
84#define BUG() \
85 do { \
86 err("sorry, it's a bug!"); \
87 abort(); \
88 } while (0)
89
90struct usbip_usb_interface {
91 uint8_t bInterfaceClass;
92 uint8_t bInterfaceSubClass;
93 uint8_t bInterfaceProtocol;
94 uint8_t padding; /* alignment */
95} __attribute__((packed));
96
97struct usbip_usb_device {
98 char path[SYSFS_PATH_MAX];
99 char busid[SYSFS_BUS_ID_SIZE];
100
101 uint32_t busnum;
102 uint32_t devnum;
103 uint32_t speed;
104
105 uint16_t idVendor;
106 uint16_t idProduct;
107 uint16_t bcdDevice;
108
109 uint8_t bDeviceClass;
110 uint8_t bDeviceSubClass;
111 uint8_t bDeviceProtocol;
112 uint8_t bConfigurationValue;
113 uint8_t bNumConfigurations;
114 uint8_t bNumInterfaces;
115} __attribute__((packed));
116
117#define to_string(s) #s
118
119void dump_usb_interface(struct usbip_usb_interface *);
120void dump_usb_device(struct usbip_usb_device *);
121int read_usb_device(struct udev_device *sdev, struct usbip_usb_device *udev);
122int read_attr_value(struct udev_device *dev, const char *name,
123 const char *format);
124int read_usb_interface(struct usbip_usb_device *udev, int i,
125 struct usbip_usb_interface *uinf);
126
127const char *usbip_speed_string(int num);
128const char *usbip_status_string(int32_t status);
129
130int usbip_names_init(char *);
131void usbip_names_free(void);
132void usbip_names_get_product(char *buff, size_t size, uint16_t vendor,
133 uint16_t product);
134void usbip_names_get_class(char *buff, size_t size, uint8_t class,
135 uint8_t subclass, uint8_t protocol);
136
137#endif /* __USBIP_COMMON_H */
diff --git a/tools/usb/usbip/libsrc/usbip_host_driver.c b/tools/usb/usbip/libsrc/usbip_host_driver.c
new file mode 100644
index 000000000000..bef08d5c44e8
--- /dev/null
+++ b/tools/usb/usbip/libsrc/usbip_host_driver.c
@@ -0,0 +1,280 @@
1/*
2 * Copyright (C) 2011 matt mooney <mfm@muteddisk.com>
3 * 2005-2007 Takahiro Hirofuchi
4 *
5 * This program is free software: you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation, either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program. If not, see <http://www.gnu.org/licenses/>.
17 */
18
19#include <sys/types.h>
20#include <sys/stat.h>
21#include <fcntl.h>
22
23#include <errno.h>
24#include <unistd.h>
25
26#include <libudev.h>
27
28#include "usbip_common.h"
29#include "usbip_host_driver.h"
30#include "list.h"
31#include "sysfs_utils.h"
32
33#undef PROGNAME
34#define PROGNAME "libusbip"
35
36struct usbip_host_driver *host_driver;
37struct udev *udev_context;
38
39static int32_t read_attr_usbip_status(struct usbip_usb_device *udev)
40{
41 char status_attr_path[SYSFS_PATH_MAX];
42 int fd;
43 int length;
44 char status;
45 int value = 0;
46
47 snprintf(status_attr_path, SYSFS_PATH_MAX, "%s/usbip_status",
48 udev->path);
49
50 fd = open(status_attr_path, O_RDONLY);
51 if (fd < 0) {
52 err("error opening attribute %s", status_attr_path);
53 return -1;
54 }
55
56 length = read(fd, &status, 1);
57 if (length < 0) {
58 err("error reading attribute %s", status_attr_path);
59 close(fd);
60 return -1;
61 }
62
63 value = atoi(&status);
64
65 return value;
66}
67
68static
69struct usbip_exported_device *usbip_exported_device_new(const char *sdevpath)
70{
71 struct usbip_exported_device *edev = NULL;
72 struct usbip_exported_device *edev_old;
73 size_t size;
74 int i;
75
76 edev = calloc(1, sizeof(struct usbip_exported_device));
77
78 edev->sudev = udev_device_new_from_syspath(udev_context, sdevpath);
79 if (!edev->sudev) {
80 err("udev_device_new_from_syspath: %s", sdevpath);
81 goto err;
82 }
83
84 read_usb_device(edev->sudev, &edev->udev);
85
86 edev->status = read_attr_usbip_status(&edev->udev);
87 if (edev->status < 0)
88 goto err;
89
90 /* reallocate buffer to include usb interface data */
91 size = sizeof(struct usbip_exported_device) +
92 edev->udev.bNumInterfaces * sizeof(struct usbip_usb_interface);
93
94 edev_old = edev;
95 edev = realloc(edev, size);
96 if (!edev) {
97 edev = edev_old;
98 dbg("realloc failed");
99 goto err;
100 }
101
102 for (i = 0; i < edev->udev.bNumInterfaces; i++)
103 read_usb_interface(&edev->udev, i, &edev->uinf[i]);
104
105 return edev;
106err:
107 if (edev->sudev)
108 udev_device_unref(edev->sudev);
109 if (edev)
110 free(edev);
111
112 return NULL;
113}
114
115static int refresh_exported_devices(void)
116{
117 struct usbip_exported_device *edev;
118 struct udev_enumerate *enumerate;
119 struct udev_list_entry *devices, *dev_list_entry;
120 struct udev_device *dev;
121 const char *path;
122 const char *driver;
123
124 enumerate = udev_enumerate_new(udev_context);
125 udev_enumerate_add_match_subsystem(enumerate, "usb");
126 udev_enumerate_scan_devices(enumerate);
127
128 devices = udev_enumerate_get_list_entry(enumerate);
129
130 udev_list_entry_foreach(dev_list_entry, devices) {
131 path = udev_list_entry_get_name(dev_list_entry);
132 dev = udev_device_new_from_syspath(udev_context, path);
133 if (dev == NULL)
134 continue;
135
136 /* Check whether device uses usbip-host driver. */
137 driver = udev_device_get_driver(dev);
138 if (driver != NULL && !strcmp(driver, USBIP_HOST_DRV_NAME)) {
139 edev = usbip_exported_device_new(path);
140 if (!edev) {
141 dbg("usbip_exported_device_new failed");
142 continue;
143 }
144
145 list_add(&edev->node, &host_driver->edev_list);
146 host_driver->ndevs++;
147 }
148 }
149
150 return 0;
151}
152
153static void usbip_exported_device_destroy(void)
154{
155 struct list_head *i, *tmp;
156 struct usbip_exported_device *edev;
157
158 list_for_each_safe(i, tmp, &host_driver->edev_list) {
159 edev = list_entry(i, struct usbip_exported_device, node);
160 list_del(i);
161 free(edev);
162 }
163}
164
165int usbip_host_driver_open(void)
166{
167 int rc;
168
169 udev_context = udev_new();
170 if (!udev_context) {
171 err("udev_new failed");
172 return -1;
173 }
174
175 host_driver = calloc(1, sizeof(*host_driver));
176
177 host_driver->ndevs = 0;
178 INIT_LIST_HEAD(&host_driver->edev_list);
179
180 rc = refresh_exported_devices();
181 if (rc < 0)
182 goto err_free_host_driver;
183
184 return 0;
185
186err_free_host_driver:
187 free(host_driver);
188 host_driver = NULL;
189
190 udev_unref(udev_context);
191
192 return -1;
193}
194
195void usbip_host_driver_close(void)
196{
197 if (!host_driver)
198 return;
199
200 usbip_exported_device_destroy();
201
202 free(host_driver);
203 host_driver = NULL;
204
205 udev_unref(udev_context);
206}
207
208int usbip_host_refresh_device_list(void)
209{
210 int rc;
211
212 usbip_exported_device_destroy();
213
214 host_driver->ndevs = 0;
215 INIT_LIST_HEAD(&host_driver->edev_list);
216
217 rc = refresh_exported_devices();
218 if (rc < 0)
219 return -1;
220
221 return 0;
222}
223
224int usbip_host_export_device(struct usbip_exported_device *edev, int sockfd)
225{
226 char attr_name[] = "usbip_sockfd";
227 char sockfd_attr_path[SYSFS_PATH_MAX];
228 char sockfd_buff[30];
229 int ret;
230
231 if (edev->status != SDEV_ST_AVAILABLE) {
232 dbg("device not available: %s", edev->udev.busid);
233 switch (edev->status) {
234 case SDEV_ST_ERROR:
235 dbg("status SDEV_ST_ERROR");
236 break;
237 case SDEV_ST_USED:
238 dbg("status SDEV_ST_USED");
239 break;
240 default:
241 dbg("status unknown: 0x%x", edev->status);
242 }
243 return -1;
244 }
245
246 /* only the first interface is true */
247 snprintf(sockfd_attr_path, sizeof(sockfd_attr_path), "%s/%s",
248 edev->udev.path, attr_name);
249
250 snprintf(sockfd_buff, sizeof(sockfd_buff), "%d\n", sockfd);
251
252 ret = write_sysfs_attribute(sockfd_attr_path, sockfd_buff,
253 strlen(sockfd_buff));
254 if (ret < 0) {
255 err("write_sysfs_attribute failed: sockfd %s to %s",
256 sockfd_buff, sockfd_attr_path);
257 return ret;
258 }
259
260 info("connect: %s", edev->udev.busid);
261
262 return ret;
263}
264
265struct usbip_exported_device *usbip_host_get_device(int num)
266{
267 struct list_head *i;
268 struct usbip_exported_device *edev;
269 int cnt = 0;
270
271 list_for_each(i, &host_driver->edev_list) {
272 edev = list_entry(i, struct usbip_exported_device, node);
273 if (num == cnt)
274 return edev;
275 else
276 cnt++;
277 }
278
279 return NULL;
280}
diff --git a/tools/usb/usbip/libsrc/usbip_host_driver.h b/tools/usb/usbip/libsrc/usbip_host_driver.h
new file mode 100644
index 000000000000..2a31f855c616
--- /dev/null
+++ b/tools/usb/usbip/libsrc/usbip_host_driver.h
@@ -0,0 +1,49 @@
1/*
2 * Copyright (C) 2011 matt mooney <mfm@muteddisk.com>
3 * 2005-2007 Takahiro Hirofuchi
4 *
5 * This program is free software: you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation, either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program. If not, see <http://www.gnu.org/licenses/>.
17 */
18
19#ifndef __USBIP_HOST_DRIVER_H
20#define __USBIP_HOST_DRIVER_H
21
22#include <stdint.h>
23#include "usbip_common.h"
24#include "list.h"
25
26struct usbip_host_driver {
27 int ndevs;
28 /* list of exported device */
29 struct list_head edev_list;
30};
31
32struct usbip_exported_device {
33 struct udev_device *sudev;
34 int32_t status;
35 struct usbip_usb_device udev;
36 struct list_head node;
37 struct usbip_usb_interface uinf[];
38};
39
40extern struct usbip_host_driver *host_driver;
41
42int usbip_host_driver_open(void);
43void usbip_host_driver_close(void);
44
45int usbip_host_refresh_device_list(void);
46int usbip_host_export_device(struct usbip_exported_device *edev, int sockfd);
47struct usbip_exported_device *usbip_host_get_device(int num);
48
49#endif /* __USBIP_HOST_DRIVER_H */
diff --git a/tools/usb/usbip/libsrc/vhci_driver.c b/tools/usb/usbip/libsrc/vhci_driver.c
new file mode 100644
index 000000000000..ad9204773533
--- /dev/null
+++ b/tools/usb/usbip/libsrc/vhci_driver.c
@@ -0,0 +1,411 @@
1/*
2 * Copyright (C) 2005-2007 Takahiro Hirofuchi
3 */
4
5#include "usbip_common.h"
6#include "vhci_driver.h"
7#include <limits.h>
8#include <netdb.h>
9#include <libudev.h>
10#include "sysfs_utils.h"
11
12#undef PROGNAME
13#define PROGNAME "libusbip"
14
15struct usbip_vhci_driver *vhci_driver;
16struct udev *udev_context;
17
18static struct usbip_imported_device *
19imported_device_init(struct usbip_imported_device *idev, char *busid)
20{
21 struct udev_device *sudev;
22
23 sudev = udev_device_new_from_subsystem_sysname(udev_context,
24 "usb", busid);
25 if (!sudev) {
26 dbg("udev_device_new_from_subsystem_sysname failed: %s", busid);
27 goto err;
28 }
29 read_usb_device(sudev, &idev->udev);
30 udev_device_unref(sudev);
31
32 return idev;
33
34err:
35 return NULL;
36}
37
38
39
40static int parse_status(const char *value)
41{
42 int ret = 0;
43 char *c;
44
45
46 for (int i = 0; i < vhci_driver->nports; i++)
47 memset(&vhci_driver->idev[i], 0, sizeof(vhci_driver->idev[i]));
48
49
50 /* skip a header line */
51 c = strchr(value, '\n');
52 if (!c)
53 return -1;
54 c++;
55
56 while (*c != '\0') {
57 int port, status, speed, devid;
58 unsigned long socket;
59 char lbusid[SYSFS_BUS_ID_SIZE];
60
61 ret = sscanf(c, "%d %d %d %x %lx %31s\n",
62 &port, &status, &speed,
63 &devid, &socket, lbusid);
64
65 if (ret < 5) {
66 dbg("sscanf failed: %d", ret);
67 BUG();
68 }
69
70 dbg("port %d status %d speed %d devid %x",
71 port, status, speed, devid);
72 dbg("socket %lx lbusid %s", socket, lbusid);
73
74
75 /* if a device is connected, look at it */
76 {
77 struct usbip_imported_device *idev = &vhci_driver->idev[port];
78
79 idev->port = port;
80 idev->status = status;
81
82 idev->devid = devid;
83
84 idev->busnum = (devid >> 16);
85 idev->devnum = (devid & 0x0000ffff);
86
87 if (idev->status != VDEV_ST_NULL
88 && idev->status != VDEV_ST_NOTASSIGNED) {
89 idev = imported_device_init(idev, lbusid);
90 if (!idev) {
91 dbg("imported_device_init failed");
92 return -1;
93 }
94 }
95 }
96
97
98 /* go to the next line */
99 c = strchr(c, '\n');
100 if (!c)
101 break;
102 c++;
103 }
104
105 dbg("exit");
106
107 return 0;
108}
109
110static int refresh_imported_device_list(void)
111{
112 const char *attr_status;
113
114 attr_status = udev_device_get_sysattr_value(vhci_driver->hc_device,
115 "status");
116 if (!attr_status) {
117 err("udev_device_get_sysattr_value failed");
118 return -1;
119 }
120
121 return parse_status(attr_status);
122}
123
124static int get_nports(void)
125{
126 char *c;
127 int nports = 0;
128 const char *attr_status;
129
130 attr_status = udev_device_get_sysattr_value(vhci_driver->hc_device,
131 "status");
132 if (!attr_status) {
133 err("udev_device_get_sysattr_value failed");
134 return -1;
135 }
136
137 /* skip a header line */
138 c = strchr(attr_status, '\n');
139 if (!c)
140 return 0;
141 c++;
142
143 while (*c != '\0') {
144 /* go to the next line */
145 c = strchr(c, '\n');
146 if (!c)
147 return nports;
148 c++;
149 nports += 1;
150 }
151
152 return nports;
153}
154
155/*
156 * Read the given port's record.
157 *
158 * To avoid buffer overflow we will read the entire line and
159 * validate each part's size. The initial buffer is padded by 4 to
160 * accommodate the 2 spaces, 1 newline and an additional character
161 * which is needed to properly validate the 3rd part without it being
162 * truncated to an acceptable length.
163 */
164static int read_record(int rhport, char *host, unsigned long host_len,
165 char *port, unsigned long port_len, char *busid)
166{
167 int part;
168 FILE *file;
169 char path[PATH_MAX+1];
170 char *buffer, *start, *end;
171 char delim[] = {' ', ' ', '\n'};
172 int max_len[] = {(int)host_len, (int)port_len, SYSFS_BUS_ID_SIZE};
173 size_t buffer_len = host_len + port_len + SYSFS_BUS_ID_SIZE + 4;
174
175 buffer = malloc(buffer_len);
176 if (!buffer)
177 return -1;
178
179 snprintf(path, PATH_MAX, VHCI_STATE_PATH"/port%d", rhport);
180
181 file = fopen(path, "r");
182 if (!file) {
183 err("fopen");
184 free(buffer);
185 return -1;
186 }
187
188 if (fgets(buffer, buffer_len, file) == NULL) {
189 err("fgets");
190 free(buffer);
191 fclose(file);
192 return -1;
193 }
194 fclose(file);
195
196 /* validate the length of each of the 3 parts */
197 start = buffer;
198 for (part = 0; part < 3; part++) {
199 end = strchr(start, delim[part]);
200 if (end == NULL || (end - start) > max_len[part]) {
201 free(buffer);
202 return -1;
203 }
204 start = end + 1;
205 }
206
207 if (sscanf(buffer, "%s %s %s\n", host, port, busid) != 3) {
208 err("sscanf");
209 free(buffer);
210 return -1;
211 }
212
213 free(buffer);
214
215 return 0;
216}
217
218/* ---------------------------------------------------------------------- */
219
220int usbip_vhci_driver_open(void)
221{
222 udev_context = udev_new();
223 if (!udev_context) {
224 err("udev_new failed");
225 return -1;
226 }
227
228 vhci_driver = calloc(1, sizeof(struct usbip_vhci_driver));
229
230 /* will be freed in usbip_driver_close() */
231 vhci_driver->hc_device =
232 udev_device_new_from_subsystem_sysname(udev_context,
233 USBIP_VHCI_BUS_TYPE,
234 USBIP_VHCI_DRV_NAME);
235 if (!vhci_driver->hc_device) {
236 err("udev_device_new_from_subsystem_sysname failed");
237 goto err;
238 }
239
240 vhci_driver->nports = get_nports();
241
242 dbg("available ports: %d", vhci_driver->nports);
243
244 if (refresh_imported_device_list())
245 goto err;
246
247 return 0;
248
249err:
250 udev_device_unref(vhci_driver->hc_device);
251
252 if (vhci_driver)
253 free(vhci_driver);
254
255 vhci_driver = NULL;
256
257 udev_unref(udev_context);
258
259 return -1;
260}
261
262
263void usbip_vhci_driver_close(void)
264{
265 if (!vhci_driver)
266 return;
267
268 udev_device_unref(vhci_driver->hc_device);
269
270 free(vhci_driver);
271
272 vhci_driver = NULL;
273
274 udev_unref(udev_context);
275}
276
277
278int usbip_vhci_refresh_device_list(void)
279{
280
281 if (refresh_imported_device_list())
282 goto err;
283
284 return 0;
285err:
286 dbg("failed to refresh device list");
287 return -1;
288}
289
290
291int usbip_vhci_get_free_port(void)
292{
293 for (int i = 0; i < vhci_driver->nports; i++) {
294 if (vhci_driver->idev[i].status == VDEV_ST_NULL)
295 return i;
296 }
297
298 return -1;
299}
300
301int usbip_vhci_attach_device2(uint8_t port, int sockfd, uint32_t devid,
302 uint32_t speed) {
303 char buff[200]; /* what size should be ? */
304 char attach_attr_path[SYSFS_PATH_MAX];
305 char attr_attach[] = "attach";
306 const char *path;
307 int ret;
308
309 snprintf(buff, sizeof(buff), "%u %d %u %u",
310 port, sockfd, devid, speed);
311 dbg("writing: %s", buff);
312
313 path = udev_device_get_syspath(vhci_driver->hc_device);
314 snprintf(attach_attr_path, sizeof(attach_attr_path), "%s/%s",
315 path, attr_attach);
316 dbg("attach attribute path: %s", attach_attr_path);
317
318 ret = write_sysfs_attribute(attach_attr_path, buff, strlen(buff));
319 if (ret < 0) {
320 dbg("write_sysfs_attribute failed");
321 return -1;
322 }
323
324 dbg("attached port: %d", port);
325
326 return 0;
327}
328
329static unsigned long get_devid(uint8_t busnum, uint8_t devnum)
330{
331 return (busnum << 16) | devnum;
332}
333
334/* will be removed */
335int usbip_vhci_attach_device(uint8_t port, int sockfd, uint8_t busnum,
336 uint8_t devnum, uint32_t speed)
337{
338 int devid = get_devid(busnum, devnum);
339
340 return usbip_vhci_attach_device2(port, sockfd, devid, speed);
341}
342
343int usbip_vhci_detach_device(uint8_t port)
344{
345 char detach_attr_path[SYSFS_PATH_MAX];
346 char attr_detach[] = "detach";
347 char buff[200]; /* what size should be ? */
348 const char *path;
349 int ret;
350
351 snprintf(buff, sizeof(buff), "%u", port);
352 dbg("writing: %s", buff);
353
354 path = udev_device_get_syspath(vhci_driver->hc_device);
355 snprintf(detach_attr_path, sizeof(detach_attr_path), "%s/%s",
356 path, attr_detach);
357 dbg("detach attribute path: %s", detach_attr_path);
358
359 ret = write_sysfs_attribute(detach_attr_path, buff, strlen(buff));
360 if (ret < 0) {
361 dbg("write_sysfs_attribute failed");
362 return -1;
363 }
364
365 dbg("detached port: %d", port);
366
367 return 0;
368}
369
370int usbip_vhci_imported_device_dump(struct usbip_imported_device *idev)
371{
372 char product_name[100];
373 char host[NI_MAXHOST] = "unknown host";
374 char serv[NI_MAXSERV] = "unknown port";
375 char remote_busid[SYSFS_BUS_ID_SIZE];
376 int ret;
377 int read_record_error = 0;
378
379 if (idev->status == VDEV_ST_NULL || idev->status == VDEV_ST_NOTASSIGNED)
380 return 0;
381
382 ret = read_record(idev->port, host, sizeof(host), serv, sizeof(serv),
383 remote_busid);
384 if (ret) {
385 err("read_record");
386 read_record_error = 1;
387 }
388
389 printf("Port %02d: <%s> at %s\n", idev->port,
390 usbip_status_string(idev->status),
391 usbip_speed_string(idev->udev.speed));
392
393 usbip_names_get_product(product_name, sizeof(product_name),
394 idev->udev.idVendor, idev->udev.idProduct);
395
396 printf(" %s\n", product_name);
397
398 if (!read_record_error) {
399 printf("%10s -> usbip://%s:%s/%s\n", idev->udev.busid,
400 host, serv, remote_busid);
401 printf("%10s -> remote bus/dev %03d/%03d\n", " ",
402 idev->busnum, idev->devnum);
403 } else {
404 printf("%10s -> unknown host, remote port and remote busid\n",
405 idev->udev.busid);
406 printf("%10s -> remote bus/dev %03d/%03d\n", " ",
407 idev->busnum, idev->devnum);
408 }
409
410 return 0;
411}
diff --git a/tools/usb/usbip/libsrc/vhci_driver.h b/tools/usb/usbip/libsrc/vhci_driver.h
new file mode 100644
index 000000000000..fa2316cf2cac
--- /dev/null
+++ b/tools/usb/usbip/libsrc/vhci_driver.h
@@ -0,0 +1,59 @@
1/*
2 * Copyright (C) 2005-2007 Takahiro Hirofuchi
3 */
4
5#ifndef __VHCI_DRIVER_H
6#define __VHCI_DRIVER_H
7
8#include <libudev.h>
9#include <stdint.h>
10
11#include "usbip_common.h"
12
13#define USBIP_VHCI_BUS_TYPE "platform"
14#define MAXNPORT 128
15
16struct usbip_imported_device {
17 uint8_t port;
18 uint32_t status;
19
20 uint32_t devid;
21
22 uint8_t busnum;
23 uint8_t devnum;
24
25 /* usbip_class_device list */
26 struct usbip_usb_device udev;
27};
28
29struct usbip_vhci_driver {
30
31 /* /sys/devices/platform/vhci_hcd */
32 struct udev_device *hc_device;
33
34 int nports;
35 struct usbip_imported_device idev[MAXNPORT];
36};
37
38
39extern struct usbip_vhci_driver *vhci_driver;
40
41int usbip_vhci_driver_open(void);
42void usbip_vhci_driver_close(void);
43
44int usbip_vhci_refresh_device_list(void);
45
46
47int usbip_vhci_get_free_port(void);
48int usbip_vhci_attach_device2(uint8_t port, int sockfd, uint32_t devid,
49 uint32_t speed);
50
51/* will be removed */
52int usbip_vhci_attach_device(uint8_t port, int sockfd, uint8_t busnum,
53 uint8_t devnum, uint32_t speed);
54
55int usbip_vhci_detach_device(uint8_t port);
56
57int usbip_vhci_imported_device_dump(struct usbip_imported_device *idev);
58
59#endif /* __VHCI_DRIVER_H */
generated by cgit v1.2.2 (git 2.25.0) at 2026-02-23 07:34:02 -0500