1 // SPDX-License-Identifier: GPL-2.0-or-later <<
2 /* 1 /*
3 * Copyright (C) 2011 matt mooney <mfm@muteddi 2 * Copyright (C) 2011 matt mooney <mfm@muteddisk.com>
4 * 2005-2007 Takahiro Hirofuchi 3 * 2005-2007 Takahiro Hirofuchi
5 * Copyright (C) 2015-2016 Samsung Electronics !! 4 *
6 * Igor Kotrasinski <i.kotrasins !! 5 * This program is free software: you can redistribute it and/or modify
7 * Krzysztof Opasiak <k.opasiak@ !! 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/>.
8 */ 17 */
9 18
10 #ifdef HAVE_CONFIG_H 19 #ifdef HAVE_CONFIG_H
11 #include "../config.h" 20 #include "../config.h"
12 #endif 21 #endif
13 22
14 #define _GNU_SOURCE 23 #define _GNU_SOURCE
15 #include <errno.h> 24 #include <errno.h>
16 #include <unistd.h> 25 #include <unistd.h>
17 #include <netdb.h> 26 #include <netdb.h>
18 #include <string.h> 27 #include <string.h>
19 #include <stdlib.h> 28 #include <stdlib.h>
20 #include <sys/types.h> 29 #include <sys/types.h>
21 #include <sys/stat.h> 30 #include <sys/stat.h>
22 #include <arpa/inet.h> 31 #include <arpa/inet.h>
23 #include <sys/socket.h> 32 #include <sys/socket.h>
24 #include <netinet/in.h> 33 #include <netinet/in.h>
25 34
26 #ifdef HAVE_LIBWRAP 35 #ifdef HAVE_LIBWRAP
27 #include <tcpd.h> 36 #include <tcpd.h>
28 #endif 37 #endif
29 38
30 #include <getopt.h> 39 #include <getopt.h>
31 #include <signal.h> 40 #include <signal.h>
32 #include <poll.h> 41 #include <poll.h>
33 42
34 #include "usbip_host_driver.h" 43 #include "usbip_host_driver.h"
35 #include "usbip_host_common.h" <<
36 #include "usbip_device_driver.h" <<
37 #include "usbip_common.h" 44 #include "usbip_common.h"
38 #include "usbip_network.h" 45 #include "usbip_network.h"
39 #include "list.h" 46 #include "list.h"
40 47
41 #undef PROGNAME 48 #undef PROGNAME
42 #define PROGNAME "usbipd" 49 #define PROGNAME "usbipd"
43 #define MAXSOCKFD 20 50 #define MAXSOCKFD 20
44 51
45 #define MAIN_LOOP_TIMEOUT 10 52 #define MAIN_LOOP_TIMEOUT 10
46 53
47 #define DEFAULT_PID_FILE "/var/run/" PROGNAME 54 #define DEFAULT_PID_FILE "/var/run/" PROGNAME ".pid"
48 55
49 static const char usbip_version_string[] = PAC 56 static const char usbip_version_string[] = PACKAGE_STRING;
50 57
51 static const char usbipd_help_string[] = 58 static const char usbipd_help_string[] =
52 "usage: usbipd [options]\n" 59 "usage: usbipd [options]\n"
53 "\n" 60 "\n"
54 " -4, --ipv4\n" 61 " -4, --ipv4\n"
55 " Bind to IPv4. Default 62 " Bind to IPv4. Default is both.\n"
56 "\n" 63 "\n"
57 " -6, --ipv6\n" 64 " -6, --ipv6\n"
58 " Bind to IPv6. Default 65 " Bind to IPv6. Default is both.\n"
59 "\n" 66 "\n"
60 " -e, --device\n" <<
61 " Run in device mode.\n" <<
62 " Rather than drive an a <<
63 " a virtual UDC to bind <<
64 "\n" <<
65 " -D, --daemon\n" 67 " -D, --daemon\n"
66 " Run as a daemon proces 68 " Run as a daemon process.\n"
67 "\n" 69 "\n"
68 " -d, --debug\n" 70 " -d, --debug\n"
69 " Print debugging inform 71 " Print debugging information.\n"
70 "\n" 72 "\n"
71 " -PFILE, --pid FILE\n" 73 " -PFILE, --pid FILE\n"
72 " Write process id to FI 74 " Write process id to FILE.\n"
73 " If no FILE specified, 75 " If no FILE specified, use " DEFAULT_PID_FILE "\n"
74 "\n" 76 "\n"
75 " -tPORT, --tcp-port PORT\n" 77 " -tPORT, --tcp-port PORT\n"
76 " Listen on TCP/IP port 78 " Listen on TCP/IP port PORT.\n"
77 "\n" 79 "\n"
78 " -h, --help\n" 80 " -h, --help\n"
79 " Print this help.\n" 81 " Print this help.\n"
80 "\n" 82 "\n"
81 " -v, --version\n" 83 " -v, --version\n"
82 " Show version.\n"; 84 " Show version.\n";
83 85
84 static struct usbip_host_driver *driver; <<
85 <<
86 static void usbipd_help(void) 86 static void usbipd_help(void)
87 { 87 {
88 printf("%s\n", usbipd_help_string); 88 printf("%s\n", usbipd_help_string);
89 } 89 }
90 90
91 static int recv_request_import(int sockfd) 91 static int recv_request_import(int sockfd)
92 { 92 {
93 struct op_import_request req; 93 struct op_import_request req;
94 struct usbip_exported_device *edev; 94 struct usbip_exported_device *edev;
95 struct usbip_usb_device pdu_udev; 95 struct usbip_usb_device pdu_udev;
96 struct list_head *i; 96 struct list_head *i;
97 int found = 0; 97 int found = 0;
98 int status = ST_OK; !! 98 int error = 0;
99 int rc; 99 int rc;
100 100
101 memset(&req, 0, sizeof(req)); 101 memset(&req, 0, sizeof(req));
102 102
103 rc = usbip_net_recv(sockfd, &req, size 103 rc = usbip_net_recv(sockfd, &req, sizeof(req));
104 if (rc < 0) { 104 if (rc < 0) {
105 dbg("usbip_net_recv failed: im 105 dbg("usbip_net_recv failed: import request");
106 return -1; 106 return -1;
107 } 107 }
108 PACK_OP_IMPORT_REQUEST(0, &req); 108 PACK_OP_IMPORT_REQUEST(0, &req);
109 109
110 list_for_each(i, &driver->edev_list) { !! 110 list_for_each(i, &host_driver->edev_list) {
111 edev = list_entry(i, struct us 111 edev = list_entry(i, struct usbip_exported_device, node);
112 if (!strncmp(req.busid, edev-> 112 if (!strncmp(req.busid, edev->udev.busid, SYSFS_BUS_ID_SIZE)) {
113 info("found requested 113 info("found requested device: %s", req.busid);
114 found = 1; 114 found = 1;
115 break; 115 break;
116 } 116 }
117 } 117 }
118 118
119 if (found) { 119 if (found) {
120 /* should set TCP_NODELAY for 120 /* should set TCP_NODELAY for usbip */
121 usbip_net_set_nodelay(sockfd); 121 usbip_net_set_nodelay(sockfd);
122 122
123 /* export device needs a TCP/I 123 /* export device needs a TCP/IP socket descriptor */
124 status = usbip_export_device(e !! 124 rc = usbip_host_export_device(edev, sockfd);
125 if (status < 0) !! 125 if (rc < 0)
126 status = ST_NA; !! 126 error = 1;
127 } else { 127 } else {
128 info("requested device not fou 128 info("requested device not found: %s", req.busid);
129 status = ST_NODEV; !! 129 error = 1;
130 } 130 }
131 131
132 rc = usbip_net_send_op_common(sockfd, !! 132 rc = usbip_net_send_op_common(sockfd, OP_REP_IMPORT,
>> 133 (!error ? ST_OK : ST_NA));
133 if (rc < 0) { 134 if (rc < 0) {
134 dbg("usbip_net_send_op_common 135 dbg("usbip_net_send_op_common failed: %#0x", OP_REP_IMPORT);
135 return -1; 136 return -1;
136 } 137 }
137 138
138 if (status) { !! 139 if (error) {
139 dbg("import request busid %s: 140 dbg("import request busid %s: failed", req.busid);
140 return -1; 141 return -1;
141 } 142 }
142 143
143 memcpy(&pdu_udev, &edev->udev, sizeof( 144 memcpy(&pdu_udev, &edev->udev, sizeof(pdu_udev));
144 usbip_net_pack_usb_device(1, &pdu_udev 145 usbip_net_pack_usb_device(1, &pdu_udev);
145 146
146 rc = usbip_net_send(sockfd, &pdu_udev, 147 rc = usbip_net_send(sockfd, &pdu_udev, sizeof(pdu_udev));
147 if (rc < 0) { 148 if (rc < 0) {
148 dbg("usbip_net_send failed: de 149 dbg("usbip_net_send failed: devinfo");
149 return -1; 150 return -1;
150 } 151 }
151 152
152 dbg("import request busid %s: complete 153 dbg("import request busid %s: complete", req.busid);
153 154
154 return 0; 155 return 0;
155 } 156 }
156 157
157 static int send_reply_devlist(int connfd) 158 static int send_reply_devlist(int connfd)
158 { 159 {
159 struct usbip_exported_device *edev; 160 struct usbip_exported_device *edev;
160 struct usbip_usb_device pdu_udev; 161 struct usbip_usb_device pdu_udev;
161 struct usbip_usb_interface pdu_uinf; 162 struct usbip_usb_interface pdu_uinf;
162 struct op_devlist_reply reply; 163 struct op_devlist_reply reply;
163 struct list_head *j; 164 struct list_head *j;
164 int rc, i; 165 int rc, i;
165 166
166 /* <<
167 * Exclude devices that are already ex <<
168 * the exportable device list to avoid <<
169 * - import requests for devices <<
170 * fail the request. <<
171 * - revealing devices that are i <<
172 * another client. <<
173 */ <<
174 <<
175 reply.ndev = 0; 167 reply.ndev = 0;
176 /* number of exported devices */ 168 /* number of exported devices */
177 list_for_each(j, &driver->edev_list) { !! 169 list_for_each(j, &host_driver->edev_list) {
178 edev = list_entry(j, struct us !! 170 reply.ndev += 1;
179 if (edev->status != SDEV_ST_US <<
180 reply.ndev += 1; <<
181 } 171 }
182 info("exportable devices: %d", reply.n 172 info("exportable devices: %d", reply.ndev);
183 173
184 rc = usbip_net_send_op_common(connfd, 174 rc = usbip_net_send_op_common(connfd, OP_REP_DEVLIST, ST_OK);
185 if (rc < 0) { 175 if (rc < 0) {
186 dbg("usbip_net_send_op_common 176 dbg("usbip_net_send_op_common failed: %#0x", OP_REP_DEVLIST);
187 return -1; 177 return -1;
188 } 178 }
189 PACK_OP_DEVLIST_REPLY(1, &reply); 179 PACK_OP_DEVLIST_REPLY(1, &reply);
190 180
191 rc = usbip_net_send(connfd, &reply, si 181 rc = usbip_net_send(connfd, &reply, sizeof(reply));
192 if (rc < 0) { 182 if (rc < 0) {
193 dbg("usbip_net_send failed: %# 183 dbg("usbip_net_send failed: %#0x", OP_REP_DEVLIST);
194 return -1; 184 return -1;
195 } 185 }
196 186
197 list_for_each(j, &driver->edev_list) { !! 187 list_for_each(j, &host_driver->edev_list) {
198 edev = list_entry(j, struct us 188 edev = list_entry(j, struct usbip_exported_device, node);
199 if (edev->status == SDEV_ST_US <<
200 continue; <<
201 <<
202 dump_usb_device(&edev->udev); 189 dump_usb_device(&edev->udev);
203 memcpy(&pdu_udev, &edev->udev, 190 memcpy(&pdu_udev, &edev->udev, sizeof(pdu_udev));
204 usbip_net_pack_usb_device(1, & 191 usbip_net_pack_usb_device(1, &pdu_udev);
205 192
206 rc = usbip_net_send(connfd, &p 193 rc = usbip_net_send(connfd, &pdu_udev, sizeof(pdu_udev));
207 if (rc < 0) { 194 if (rc < 0) {
208 dbg("usbip_net_send fa 195 dbg("usbip_net_send failed: pdu_udev");
209 return -1; 196 return -1;
210 } 197 }
211 198
212 for (i = 0; i < edev->udev.bNu 199 for (i = 0; i < edev->udev.bNumInterfaces; i++) {
213 dump_usb_interface(&ed 200 dump_usb_interface(&edev->uinf[i]);
214 memcpy(&pdu_uinf, &ede 201 memcpy(&pdu_uinf, &edev->uinf[i], sizeof(pdu_uinf));
215 usbip_net_pack_usb_int 202 usbip_net_pack_usb_interface(1, &pdu_uinf);
216 203
217 rc = usbip_net_send(co 204 rc = usbip_net_send(connfd, &pdu_uinf,
218 sizeof 205 sizeof(pdu_uinf));
219 if (rc < 0) { 206 if (rc < 0) {
220 err("usbip_net 207 err("usbip_net_send failed: pdu_uinf");
221 return -1; 208 return -1;
222 } 209 }
223 } 210 }
224 } 211 }
225 212
226 return 0; 213 return 0;
227 } 214 }
228 215
229 static int recv_request_devlist(int connfd) 216 static int recv_request_devlist(int connfd)
230 { 217 {
231 struct op_devlist_request req; 218 struct op_devlist_request req;
232 int rc; 219 int rc;
233 220
234 memset(&req, 0, sizeof(req)); 221 memset(&req, 0, sizeof(req));
235 222
236 rc = usbip_net_recv(connfd, &req, size 223 rc = usbip_net_recv(connfd, &req, sizeof(req));
237 if (rc < 0) { 224 if (rc < 0) {
238 dbg("usbip_net_recv failed: de 225 dbg("usbip_net_recv failed: devlist request");
239 return -1; 226 return -1;
240 } 227 }
241 228
242 rc = send_reply_devlist(connfd); 229 rc = send_reply_devlist(connfd);
243 if (rc < 0) { 230 if (rc < 0) {
244 dbg("send_reply_devlist failed 231 dbg("send_reply_devlist failed");
245 return -1; 232 return -1;
246 } 233 }
247 234
248 return 0; 235 return 0;
249 } 236 }
250 237
251 static int recv_pdu(int connfd) 238 static int recv_pdu(int connfd)
252 { 239 {
253 uint16_t code = OP_UNSPEC; 240 uint16_t code = OP_UNSPEC;
254 int ret; 241 int ret;
255 int status; <<
256 242
257 ret = usbip_net_recv_op_common(connfd, !! 243 ret = usbip_net_recv_op_common(connfd, &code);
258 if (ret < 0) { 244 if (ret < 0) {
259 dbg("could not receive opcode: 245 dbg("could not receive opcode: %#0x", code);
260 return -1; 246 return -1;
261 } 247 }
262 248
263 ret = usbip_refresh_device_list(driver !! 249 ret = usbip_host_refresh_device_list();
264 if (ret < 0) { 250 if (ret < 0) {
265 dbg("could not refresh device 251 dbg("could not refresh device list: %d", ret);
266 return -1; 252 return -1;
267 } 253 }
268 254
269 info("received request: %#0x(%d)", cod 255 info("received request: %#0x(%d)", code, connfd);
270 switch (code) { 256 switch (code) {
271 case OP_REQ_DEVLIST: 257 case OP_REQ_DEVLIST:
272 ret = recv_request_devlist(con 258 ret = recv_request_devlist(connfd);
273 break; 259 break;
274 case OP_REQ_IMPORT: 260 case OP_REQ_IMPORT:
275 ret = recv_request_import(conn 261 ret = recv_request_import(connfd);
276 break; 262 break;
277 case OP_REQ_DEVINFO: 263 case OP_REQ_DEVINFO:
278 case OP_REQ_CRYPKEY: 264 case OP_REQ_CRYPKEY:
279 default: 265 default:
280 err("received an unknown opcod 266 err("received an unknown opcode: %#0x", code);
281 ret = -1; 267 ret = -1;
282 } 268 }
283 269
284 if (ret == 0) 270 if (ret == 0)
285 info("request %#0x(%d): comple 271 info("request %#0x(%d): complete", code, connfd);
286 else 272 else
287 info("request %#0x(%d): failed 273 info("request %#0x(%d): failed", code, connfd);
288 274
289 return ret; 275 return ret;
290 } 276 }
291 277
292 #ifdef HAVE_LIBWRAP 278 #ifdef HAVE_LIBWRAP
293 static int tcpd_auth(int connfd) 279 static int tcpd_auth(int connfd)
294 { 280 {
295 struct request_info request; 281 struct request_info request;
296 int rc; 282 int rc;
297 283
298 request_init(&request, RQ_DAEMON, PROG 284 request_init(&request, RQ_DAEMON, PROGNAME, RQ_FILE, connfd, 0);
299 fromhost(&request); 285 fromhost(&request);
300 rc = hosts_access(&request); 286 rc = hosts_access(&request);
301 if (rc == 0) 287 if (rc == 0)
302 return -1; 288 return -1;
303 289
304 return 0; 290 return 0;
305 } 291 }
306 #endif 292 #endif
307 293
308 static int do_accept(int listenfd) 294 static int do_accept(int listenfd)
309 { 295 {
310 int connfd; 296 int connfd;
311 struct sockaddr_storage ss; 297 struct sockaddr_storage ss;
312 socklen_t len = sizeof(ss); 298 socklen_t len = sizeof(ss);
313 char host[NI_MAXHOST], port[NI_MAXSERV 299 char host[NI_MAXHOST], port[NI_MAXSERV];
314 int rc; 300 int rc;
315 301
316 memset(&ss, 0, sizeof(ss)); 302 memset(&ss, 0, sizeof(ss));
317 303
318 connfd = accept(listenfd, (struct sock 304 connfd = accept(listenfd, (struct sockaddr *)&ss, &len);
319 if (connfd < 0) { 305 if (connfd < 0) {
320 err("failed to accept connecti 306 err("failed to accept connection");
321 return -1; 307 return -1;
322 } 308 }
323 309
324 rc = getnameinfo((struct sockaddr *)&s 310 rc = getnameinfo((struct sockaddr *)&ss, len, host, sizeof(host),
325 port, sizeof(port), N 311 port, sizeof(port), NI_NUMERICHOST | NI_NUMERICSERV);
326 if (rc) 312 if (rc)
327 err("getnameinfo: %s", gai_str 313 err("getnameinfo: %s", gai_strerror(rc));
328 314
329 #ifdef HAVE_LIBWRAP 315 #ifdef HAVE_LIBWRAP
330 rc = tcpd_auth(connfd); 316 rc = tcpd_auth(connfd);
331 if (rc < 0) { 317 if (rc < 0) {
332 info("denied access from %s", 318 info("denied access from %s", host);
333 close(connfd); 319 close(connfd);
334 return -1; 320 return -1;
335 } 321 }
336 #endif 322 #endif
337 info("connection from %s:%s", host, po 323 info("connection from %s:%s", host, port);
338 324
339 return connfd; 325 return connfd;
340 } 326 }
341 327
342 int process_request(int listenfd) 328 int process_request(int listenfd)
343 { 329 {
344 pid_t childpid; 330 pid_t childpid;
345 int connfd; 331 int connfd;
346 332
347 connfd = do_accept(listenfd); 333 connfd = do_accept(listenfd);
348 if (connfd < 0) 334 if (connfd < 0)
349 return -1; 335 return -1;
350 childpid = fork(); 336 childpid = fork();
351 if (childpid == 0) { 337 if (childpid == 0) {
352 close(listenfd); 338 close(listenfd);
353 recv_pdu(connfd); 339 recv_pdu(connfd);
354 exit(0); 340 exit(0);
355 } 341 }
356 close(connfd); 342 close(connfd);
357 return 0; 343 return 0;
358 } 344 }
359 345
360 static void addrinfo_to_text(struct addrinfo * 346 static void addrinfo_to_text(struct addrinfo *ai, char buf[],
361 const size_t buf_ 347 const size_t buf_size)
362 { 348 {
363 char hbuf[NI_MAXHOST]; 349 char hbuf[NI_MAXHOST];
364 char sbuf[NI_MAXSERV]; 350 char sbuf[NI_MAXSERV];
365 int rc; 351 int rc;
366 352
367 buf[0] = '\0'; 353 buf[0] = '\0';
368 354
369 rc = getnameinfo(ai->ai_addr, ai->ai_a 355 rc = getnameinfo(ai->ai_addr, ai->ai_addrlen, hbuf, sizeof(hbuf),
370 sbuf, sizeof(sbuf), N 356 sbuf, sizeof(sbuf), NI_NUMERICHOST | NI_NUMERICSERV);
371 if (rc) 357 if (rc)
372 err("getnameinfo: %s", gai_str 358 err("getnameinfo: %s", gai_strerror(rc));
373 359
374 snprintf(buf, buf_size, "%s:%s", hbuf, 360 snprintf(buf, buf_size, "%s:%s", hbuf, sbuf);
375 } 361 }
376 362
377 static int listen_all_addrinfo(struct addrinfo 363 static int listen_all_addrinfo(struct addrinfo *ai_head, int sockfdlist[],
378 int maxsockfd) 364 int maxsockfd)
379 { 365 {
380 struct addrinfo *ai; 366 struct addrinfo *ai;
381 int ret, nsockfd = 0; 367 int ret, nsockfd = 0;
382 const size_t ai_buf_size = NI_MAXHOST 368 const size_t ai_buf_size = NI_MAXHOST + NI_MAXSERV + 2;
383 char ai_buf[ai_buf_size]; 369 char ai_buf[ai_buf_size];
384 370
385 for (ai = ai_head; ai && nsockfd < max 371 for (ai = ai_head; ai && nsockfd < maxsockfd; ai = ai->ai_next) {
386 int sock; 372 int sock;
387 373
388 addrinfo_to_text(ai, ai_buf, a 374 addrinfo_to_text(ai, ai_buf, ai_buf_size);
389 dbg("opening %s", ai_buf); 375 dbg("opening %s", ai_buf);
390 sock = socket(ai->ai_family, a 376 sock = socket(ai->ai_family, ai->ai_socktype, ai->ai_protocol);
391 if (sock < 0) { 377 if (sock < 0) {
392 err("socket: %s: %d (% 378 err("socket: %s: %d (%s)",
393 ai_buf, errno, str 379 ai_buf, errno, strerror(errno));
394 continue; 380 continue;
395 } 381 }
396 382
397 usbip_net_set_reuseaddr(sock); 383 usbip_net_set_reuseaddr(sock);
398 usbip_net_set_nodelay(sock); 384 usbip_net_set_nodelay(sock);
399 /* We use seperate sockets for 385 /* We use seperate sockets for IPv4 and IPv6
400 * (see do_standalone_mode()) 386 * (see do_standalone_mode()) */
401 usbip_net_set_v6only(sock); 387 usbip_net_set_v6only(sock);
402 388
>> 389 if (sock >= FD_SETSIZE) {
>> 390 err("FD_SETSIZE: %s: sock=%d, max=%d",
>> 391 ai_buf, sock, FD_SETSIZE);
>> 392 close(sock);
>> 393 continue;
>> 394 }
>> 395
403 ret = bind(sock, ai->ai_addr, 396 ret = bind(sock, ai->ai_addr, ai->ai_addrlen);
404 if (ret < 0) { 397 if (ret < 0) {
405 err("bind: %s: %d (%s) 398 err("bind: %s: %d (%s)",
406 ai_buf, errno, str 399 ai_buf, errno, strerror(errno));
407 close(sock); 400 close(sock);
408 continue; 401 continue;
409 } 402 }
410 403
411 ret = listen(sock, SOMAXCONN); 404 ret = listen(sock, SOMAXCONN);
412 if (ret < 0) { 405 if (ret < 0) {
413 err("listen: %s: %d (% 406 err("listen: %s: %d (%s)",
414 ai_buf, errno, str 407 ai_buf, errno, strerror(errno));
415 close(sock); 408 close(sock);
416 continue; 409 continue;
417 } 410 }
418 411
419 info("listening on %s", ai_buf 412 info("listening on %s", ai_buf);
420 sockfdlist[nsockfd++] = sock; 413 sockfdlist[nsockfd++] = sock;
421 } 414 }
422 415
423 return nsockfd; 416 return nsockfd;
424 } 417 }
425 418
426 static struct addrinfo *do_getaddrinfo(char *h 419 static struct addrinfo *do_getaddrinfo(char *host, int ai_family)
427 { 420 {
428 struct addrinfo hints, *ai_head; 421 struct addrinfo hints, *ai_head;
429 int rc; 422 int rc;
430 423
431 memset(&hints, 0, sizeof(hints)); 424 memset(&hints, 0, sizeof(hints));
432 hints.ai_family = ai_family; 425 hints.ai_family = ai_family;
433 hints.ai_socktype = SOCK_STREAM; 426 hints.ai_socktype = SOCK_STREAM;
434 hints.ai_flags = AI_PASSIVE; 427 hints.ai_flags = AI_PASSIVE;
435 428
436 rc = getaddrinfo(host, usbip_port_stri 429 rc = getaddrinfo(host, usbip_port_string, &hints, &ai_head);
437 if (rc) { 430 if (rc) {
438 err("failed to get a network a 431 err("failed to get a network address %s: %s", usbip_port_string,
439 gai_strerror(rc)); 432 gai_strerror(rc));
440 return NULL; 433 return NULL;
441 } 434 }
442 435
443 return ai_head; 436 return ai_head;
444 } 437 }
445 438
446 static void signal_handler(int i) 439 static void signal_handler(int i)
447 { 440 {
448 dbg("received '%s' signal", strsignal( 441 dbg("received '%s' signal", strsignal(i));
449 } 442 }
450 443
451 static void set_signal(void) 444 static void set_signal(void)
452 { 445 {
453 struct sigaction act; 446 struct sigaction act;
454 447
455 memset(&act, 0, sizeof(act)); 448 memset(&act, 0, sizeof(act));
456 act.sa_handler = signal_handler; 449 act.sa_handler = signal_handler;
457 sigemptyset(&act.sa_mask); 450 sigemptyset(&act.sa_mask);
458 sigaction(SIGTERM, &act, NULL); 451 sigaction(SIGTERM, &act, NULL);
459 sigaction(SIGINT, &act, NULL); 452 sigaction(SIGINT, &act, NULL);
460 act.sa_handler = SIG_IGN; 453 act.sa_handler = SIG_IGN;
461 sigaction(SIGCHLD, &act, NULL); 454 sigaction(SIGCHLD, &act, NULL);
462 } 455 }
463 456
464 static const char *pid_file; 457 static const char *pid_file;
465 458
466 static void write_pid_file(void) 459 static void write_pid_file(void)
467 { 460 {
468 if (pid_file) { 461 if (pid_file) {
469 dbg("creating pid file %s", pi 462 dbg("creating pid file %s", pid_file);
470 FILE *fp; 463 FILE *fp;
471 464
472 fp = fopen(pid_file, "w"); 465 fp = fopen(pid_file, "w");
473 if (!fp) { 466 if (!fp) {
474 err("pid_file: %s: %d 467 err("pid_file: %s: %d (%s)",
475 pid_file, errno, s 468 pid_file, errno, strerror(errno));
476 return; 469 return;
477 } 470 }
478 fprintf(fp, "%d\n", getpid()); 471 fprintf(fp, "%d\n", getpid());
479 fclose(fp); 472 fclose(fp);
480 } 473 }
481 } 474 }
482 475
483 static void remove_pid_file(void) 476 static void remove_pid_file(void)
484 { 477 {
485 if (pid_file) { 478 if (pid_file) {
486 dbg("removing pid file %s", pi 479 dbg("removing pid file %s", pid_file);
487 unlink(pid_file); 480 unlink(pid_file);
488 } 481 }
489 } 482 }
490 483
491 static int do_standalone_mode(int daemonize, i 484 static int do_standalone_mode(int daemonize, int ipv4, int ipv6)
492 { 485 {
493 struct addrinfo *ai_head; 486 struct addrinfo *ai_head;
494 int sockfdlist[MAXSOCKFD]; 487 int sockfdlist[MAXSOCKFD];
495 int nsockfd, family; 488 int nsockfd, family;
496 int i, terminate; 489 int i, terminate;
497 struct pollfd *fds; 490 struct pollfd *fds;
498 struct timespec timeout; 491 struct timespec timeout;
499 sigset_t sigmask; 492 sigset_t sigmask;
500 493
501 if (usbip_driver_open(driver)) !! 494 if (usbip_host_driver_open()) {
>> 495 err("please load " USBIP_CORE_MOD_NAME ".ko and "
>> 496 USBIP_HOST_DRV_NAME ".ko!");
502 return -1; 497 return -1;
>> 498 }
503 499
504 if (daemonize) { 500 if (daemonize) {
505 if (daemon(0, 0) < 0) { 501 if (daemon(0, 0) < 0) {
506 err("daemonizing faile 502 err("daemonizing failed: %s", strerror(errno));
507 usbip_driver_close(dri !! 503 usbip_host_driver_close();
508 return -1; 504 return -1;
509 } 505 }
510 umask(0); 506 umask(0);
511 usbip_use_syslog = 1; 507 usbip_use_syslog = 1;
512 } 508 }
513 set_signal(); 509 set_signal();
514 write_pid_file(); 510 write_pid_file();
515 511
516 info("starting " PROGNAME " (%s)", usb 512 info("starting " PROGNAME " (%s)", usbip_version_string);
517 513
518 /* 514 /*
519 * To suppress warnings on systems wit 515 * To suppress warnings on systems with bindv6only disabled
520 * (default), we use seperate sockets 516 * (default), we use seperate sockets for IPv6 and IPv4 and set
521 * IPV6_V6ONLY on the IPv6 sockets. 517 * IPV6_V6ONLY on the IPv6 sockets.
522 */ 518 */
523 if (ipv4 && ipv6) 519 if (ipv4 && ipv6)
524 family = AF_UNSPEC; 520 family = AF_UNSPEC;
525 else if (ipv4) 521 else if (ipv4)
526 family = AF_INET; 522 family = AF_INET;
527 else 523 else
528 family = AF_INET6; 524 family = AF_INET6;
529 525
530 ai_head = do_getaddrinfo(NULL, family) 526 ai_head = do_getaddrinfo(NULL, family);
531 if (!ai_head) { 527 if (!ai_head) {
532 usbip_driver_close(driver); !! 528 usbip_host_driver_close();
533 return -1; 529 return -1;
534 } 530 }
535 nsockfd = listen_all_addrinfo(ai_head, 531 nsockfd = listen_all_addrinfo(ai_head, sockfdlist,
536 sizeof(sockfdlist) / sizeof(*s 532 sizeof(sockfdlist) / sizeof(*sockfdlist));
537 freeaddrinfo(ai_head); 533 freeaddrinfo(ai_head);
538 if (nsockfd <= 0) { 534 if (nsockfd <= 0) {
539 err("failed to open a listenin 535 err("failed to open a listening socket");
540 usbip_driver_close(driver); !! 536 usbip_host_driver_close();
541 return -1; 537 return -1;
542 } 538 }
543 539
544 dbg("listening on %d address%s", nsock 540 dbg("listening on %d address%s", nsockfd, (nsockfd == 1) ? "" : "es");
545 541
546 fds = calloc(nsockfd, sizeof(struct po 542 fds = calloc(nsockfd, sizeof(struct pollfd));
547 for (i = 0; i < nsockfd; i++) { 543 for (i = 0; i < nsockfd; i++) {
548 fds[i].fd = sockfdlist[i]; 544 fds[i].fd = sockfdlist[i];
549 fds[i].events = POLLIN; 545 fds[i].events = POLLIN;
550 } 546 }
551 timeout.tv_sec = MAIN_LOOP_TIMEOUT; 547 timeout.tv_sec = MAIN_LOOP_TIMEOUT;
552 timeout.tv_nsec = 0; 548 timeout.tv_nsec = 0;
553 549
554 sigfillset(&sigmask); 550 sigfillset(&sigmask);
555 sigdelset(&sigmask, SIGTERM); 551 sigdelset(&sigmask, SIGTERM);
556 sigdelset(&sigmask, SIGINT); 552 sigdelset(&sigmask, SIGINT);
557 553
558 terminate = 0; 554 terminate = 0;
559 while (!terminate) { 555 while (!terminate) {
560 int r; 556 int r;
561 557
562 r = ppoll(fds, nsockfd, &timeo 558 r = ppoll(fds, nsockfd, &timeout, &sigmask);
563 if (r < 0) { 559 if (r < 0) {
564 dbg("%s", strerror(err 560 dbg("%s", strerror(errno));
565 terminate = 1; 561 terminate = 1;
566 } else if (r) { 562 } else if (r) {
567 for (i = 0; i < nsockf 563 for (i = 0; i < nsockfd; i++) {
568 if (fds[i].rev 564 if (fds[i].revents & POLLIN) {
569 dbg("r 565 dbg("read event on fd[%d]=%d",
570 i, 566 i, sockfdlist[i]);
571 proces 567 process_request(sockfdlist[i]);
572 } 568 }
573 } 569 }
574 } else { 570 } else {
575 dbg("heartbeat timeout 571 dbg("heartbeat timeout on ppoll()");
576 } 572 }
577 } 573 }
578 574
579 info("shutting down " PROGNAME); 575 info("shutting down " PROGNAME);
580 free(fds); 576 free(fds);
581 usbip_driver_close(driver); !! 577 usbip_host_driver_close();
582 578
583 return 0; 579 return 0;
584 } 580 }
585 581
586 int main(int argc, char *argv[]) 582 int main(int argc, char *argv[])
587 { 583 {
588 static const struct option longopts[] 584 static const struct option longopts[] = {
589 { "ipv4", no_argument, 585 { "ipv4", no_argument, NULL, '4' },
590 { "ipv6", no_argument, 586 { "ipv6", no_argument, NULL, '6' },
591 { "daemon", no_argument, 587 { "daemon", no_argument, NULL, 'D' },
592 { "daemon", no_argument, 588 { "daemon", no_argument, NULL, 'D' },
593 { "debug", no_argument, 589 { "debug", no_argument, NULL, 'd' },
594 { "device", no_argument, <<
595 { "pid", optional_argumen 590 { "pid", optional_argument, NULL, 'P' },
596 { "tcp-port", required_argumen 591 { "tcp-port", required_argument, NULL, 't' },
597 { "help", no_argument, 592 { "help", no_argument, NULL, 'h' },
598 { "version", no_argument, 593 { "version", no_argument, NULL, 'v' },
599 { NULL, 0, 594 { NULL, 0, NULL, 0 }
600 }; 595 };
601 596
602 enum { 597 enum {
603 cmd_standalone_mode = 1, 598 cmd_standalone_mode = 1,
604 cmd_help, 599 cmd_help,
605 cmd_version 600 cmd_version
606 } cmd; 601 } cmd;
607 602
608 int daemonize = 0; 603 int daemonize = 0;
609 int ipv4 = 0, ipv6 = 0; 604 int ipv4 = 0, ipv6 = 0;
610 int opt, rc = -1; 605 int opt, rc = -1;
611 606
612 pid_file = NULL; 607 pid_file = NULL;
613 608
614 usbip_use_stderr = 1; 609 usbip_use_stderr = 1;
615 usbip_use_syslog = 0; 610 usbip_use_syslog = 0;
616 611
617 if (geteuid() != 0) 612 if (geteuid() != 0)
618 err("not running as root?"); 613 err("not running as root?");
619 614
620 cmd = cmd_standalone_mode; 615 cmd = cmd_standalone_mode;
621 driver = &host_driver; <<
622 for (;;) { 616 for (;;) {
623 opt = getopt_long(argc, argv, !! 617 opt = getopt_long(argc, argv, "46DdP::t:hv", longopts, NULL);
624 618
625 if (opt == -1) 619 if (opt == -1)
626 break; 620 break;
627 621
628 switch (opt) { 622 switch (opt) {
629 case '4': 623 case '4':
630 ipv4 = 1; 624 ipv4 = 1;
631 break; 625 break;
632 case '6': 626 case '6':
633 ipv6 = 1; 627 ipv6 = 1;
634 break; 628 break;
635 case 'D': 629 case 'D':
636 daemonize = 1; 630 daemonize = 1;
637 break; 631 break;
638 case 'd': 632 case 'd':
639 usbip_use_debug = 1; 633 usbip_use_debug = 1;
640 break; 634 break;
641 case 'h': 635 case 'h':
642 cmd = cmd_help; 636 cmd = cmd_help;
643 break; 637 break;
644 case 'P': 638 case 'P':
645 pid_file = optarg ? op 639 pid_file = optarg ? optarg : DEFAULT_PID_FILE;
646 break; 640 break;
647 case 't': 641 case 't':
648 usbip_setup_port_numbe 642 usbip_setup_port_number(optarg);
649 break; 643 break;
650 case 'v': 644 case 'v':
651 cmd = cmd_version; 645 cmd = cmd_version;
652 break; <<
653 case 'e': <<
654 driver = &device_drive <<
655 break; 646 break;
656 case '?': 647 case '?':
657 usbipd_help(); 648 usbipd_help();
658 default: 649 default:
659 goto err_out; 650 goto err_out;
660 } 651 }
661 } 652 }
662 653
663 if (!ipv4 && !ipv6) 654 if (!ipv4 && !ipv6)
664 ipv4 = ipv6 = 1; 655 ipv4 = ipv6 = 1;
665 656
666 switch (cmd) { 657 switch (cmd) {
667 case cmd_standalone_mode: 658 case cmd_standalone_mode:
668 rc = do_standalone_mode(daemon 659 rc = do_standalone_mode(daemonize, ipv4, ipv6);
669 remove_pid_file(); 660 remove_pid_file();
670 break; 661 break;
671 case cmd_version: 662 case cmd_version:
672 printf(PROGNAME " (%s)\n", usb 663 printf(PROGNAME " (%s)\n", usbip_version_string);
673 rc = 0; 664 rc = 0;
674 break; 665 break;
675 case cmd_help: 666 case cmd_help:
676 usbipd_help(); 667 usbipd_help();
677 rc = 0; 668 rc = 0;
678 break; 669 break;
679 default: 670 default:
680 usbipd_help(); 671 usbipd_help();
681 goto err_out; 672 goto err_out;
682 } 673 }
683 674
684 err_out: 675 err_out:
685 return (rc > -1 ? EXIT_SUCCESS : EXIT_ 676 return (rc > -1 ? EXIT_SUCCESS : EXIT_FAILURE);
686 } 677 }
687 678
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