1 /*
2 * Copyright (C) 2008 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include <stdlib.h>
18 #include <sys/socket.h>
19 #include <sys/types.h>
20 #include <netinet/in.h>
21 #include <arpa/inet.h>
22 #include <dirent.h>
23 #include <errno.h>
24
25 #include <linux/if.h>
26
27 #define LOG_TAG "CommandListener"
28 #include <cutils/log.h>
29
30 #include <sysutils/SocketClient.h>
31
32 #include "CommandListener.h"
33 #include "ResponseCode.h"
34 #include "ThrottleController.h"
35
36
37 extern "C" int ifc_init(void);
38 extern "C" int ifc_get_hwaddr(const char *name, void *ptr);
39 extern "C" int ifc_get_info(const char *name, in_addr_t *addr, in_addr_t *mask, unsigned *flags);
40 extern "C" int ifc_set_addr(const char *name, in_addr_t addr);
41 extern "C" int ifc_set_mask(const char *name, in_addr_t mask);
42 extern "C" int ifc_up(const char *name);
43 extern "C" int ifc_down(const char *name);
44
45 TetherController *CommandListener::sTetherCtrl = NULL;
46 NatController *CommandListener::sNatCtrl = NULL;
47 PppController *CommandListener::sPppCtrl = NULL;
48 PanController *CommandListener::sPanCtrl = NULL;
49 SoftapController *CommandListener::sSoftapCtrl = NULL;
50 UsbController *CommandListener::sUsbCtrl = NULL;
51
CommandListener()52 CommandListener::CommandListener() :
53 FrameworkListener("netd") {
54 registerCmd(new InterfaceCmd());
55 registerCmd(new IpFwdCmd());
56 registerCmd(new TetherCmd());
57 registerCmd(new NatCmd());
58 registerCmd(new ListTtysCmd());
59 registerCmd(new PppdCmd());
60 registerCmd(new PanCmd());
61 registerCmd(new SoftapCmd());
62 registerCmd(new UsbCmd());
63
64 if (!sTetherCtrl)
65 sTetherCtrl = new TetherController();
66 if (!sNatCtrl)
67 sNatCtrl = new NatController();
68 if (!sPppCtrl)
69 sPppCtrl = new PppController();
70 if (!sPanCtrl)
71 sPanCtrl = new PanController();
72 if (!sSoftapCtrl)
73 sSoftapCtrl = new SoftapController();
74 if (!sUsbCtrl)
75 sUsbCtrl = new UsbController();
76 }
77
InterfaceCmd()78 CommandListener::InterfaceCmd::InterfaceCmd() :
79 NetdCommand("interface") {
80 }
81
runCommand(SocketClient * cli,int argc,char ** argv)82 int CommandListener::InterfaceCmd::runCommand(SocketClient *cli,
83 int argc, char **argv) {
84 if (argc < 2) {
85 cli->sendMsg(ResponseCode::CommandSyntaxError, "Missing argument", false);
86 return 0;
87 }
88
89 if (!strcmp(argv[1], "list")) {
90 DIR *d;
91 struct dirent *de;
92
93 if (!(d = opendir("/sys/class/net"))) {
94 cli->sendMsg(ResponseCode::OperationFailed, "Failed to open sysfs dir", true);
95 return 0;
96 }
97
98 while((de = readdir(d))) {
99 if (de->d_name[0] == '.')
100 continue;
101 cli->sendMsg(ResponseCode::InterfaceListResult, de->d_name, false);
102 }
103 closedir(d);
104 cli->sendMsg(ResponseCode::CommandOkay, "Interface list completed", false);
105 return 0;
106 } else if (!strcmp(argv[1], "readrxcounter")) {
107 if (argc != 3) {
108 cli->sendMsg(ResponseCode::CommandSyntaxError,
109 "Usage: interface readrxcounter <interface>", false);
110 return 0;
111 }
112 unsigned long rx = 0, tx = 0;
113 if (readInterfaceCounters(argv[2], &rx, &tx)) {
114 cli->sendMsg(ResponseCode::OperationFailed, "Failed to read counters", true);
115 return 0;
116 }
117
118 char *msg;
119 asprintf(&msg, "%lu", rx);
120 cli->sendMsg(ResponseCode::InterfaceRxCounterResult, msg, false);
121 free(msg);
122
123 return 0;
124 } else if (!strcmp(argv[1], "readtxcounter")) {
125 if (argc != 3) {
126 cli->sendMsg(ResponseCode::CommandSyntaxError,
127 "Usage: interface readtxcounter <interface>", false);
128 return 0;
129 }
130 unsigned long rx = 0, tx = 0;
131 if (readInterfaceCounters(argv[2], &rx, &tx)) {
132 cli->sendMsg(ResponseCode::OperationFailed, "Failed to read counters", true);
133 return 0;
134 }
135
136 char *msg = NULL;
137 asprintf(&msg, "%lu", tx);
138 cli->sendMsg(ResponseCode::InterfaceTxCounterResult, msg, false);
139 free(msg);
140 return 0;
141 } else if (!strcmp(argv[1], "getthrottle")) {
142 if (argc != 4 || (argc == 4 && (strcmp(argv[3], "rx") && (strcmp(argv[3], "tx"))))) {
143 cli->sendMsg(ResponseCode::CommandSyntaxError,
144 "Usage: interface getthrottle <interface> <rx|tx>", false);
145 return 0;
146 }
147 int val = 0;
148 int rc = 0;
149 int voldRc = ResponseCode::InterfaceRxThrottleResult;
150
151 if (!strcmp(argv[3], "rx")) {
152 rc = ThrottleController::getInterfaceRxThrottle(argv[2], &val);
153 } else {
154 rc = ThrottleController::getInterfaceTxThrottle(argv[2], &val);
155 voldRc = ResponseCode::InterfaceTxThrottleResult;
156 }
157 if (rc) {
158 cli->sendMsg(ResponseCode::OperationFailed, "Failed to get throttle", true);
159 } else {
160 char *msg = NULL;
161 asprintf(&msg, "%u", val);
162 cli->sendMsg(voldRc, msg, false);
163 free(msg);
164 return 0;
165 }
166 return 0;
167 } else if (!strcmp(argv[1], "setthrottle")) {
168 if (argc != 5) {
169 cli->sendMsg(ResponseCode::CommandSyntaxError,
170 "Usage: interface setthrottle <interface> <rx_kbps> <tx_kbps>", false);
171 return 0;
172 }
173 if (ThrottleController::setInterfaceThrottle(argv[2], atoi(argv[3]), atoi(argv[4]))) {
174 cli->sendMsg(ResponseCode::OperationFailed, "Failed to set throttle", true);
175 } else {
176 cli->sendMsg(ResponseCode::CommandOkay, "Interface throttling set", false);
177 }
178 return 0;
179 } else {
180 /*
181 * These commands take a minimum of 3 arguments
182 */
183 if (argc < 3) {
184 cli->sendMsg(ResponseCode::CommandSyntaxError, "Missing argument", false);
185 return 0;
186 }
187 if (!strcmp(argv[1], "getcfg")) {
188 struct in_addr addr, mask;
189 unsigned char hwaddr[6];
190 unsigned flags = 0;
191
192 ifc_init();
193 memset(hwaddr, 0, sizeof(hwaddr));
194
195 if (ifc_get_info(argv[2], &addr.s_addr, &mask.s_addr, &flags)) {
196 cli->sendMsg(ResponseCode::OperationFailed, "Interface not found", true);
197 return 0;
198 }
199
200 if (ifc_get_hwaddr(argv[2], (void *) hwaddr)) {
201 LOGW("Failed to retrieve HW addr for %s (%s)", argv[2], strerror(errno));
202 }
203
204 char *addr_s = strdup(inet_ntoa(addr));
205 char *mask_s = strdup(inet_ntoa(mask));
206 const char *updown, *brdcst, *loopbk, *ppp, *running, *multi;
207
208 updown = (flags & IFF_UP) ? "up" : "down";
209 brdcst = (flags & IFF_BROADCAST) ? " broadcast" : "";
210 loopbk = (flags & IFF_LOOPBACK) ? " loopback" : "";
211 ppp = (flags & IFF_POINTOPOINT) ? " point-to-point" : "";
212 running = (flags & IFF_RUNNING) ? " running" : "";
213 multi = (flags & IFF_MULTICAST) ? " multicast" : "";
214
215 char *flag_s;
216
217 asprintf(&flag_s, "[%s%s%s%s%s%s]", updown, brdcst, loopbk, ppp, running, multi);
218
219 char *msg = NULL;
220 asprintf(&msg, "%.2x:%.2x:%.2x:%.2x:%.2x:%.2x %s %s %s",
221 hwaddr[0], hwaddr[1], hwaddr[2], hwaddr[3], hwaddr[4], hwaddr[5],
222 addr_s, mask_s, flag_s);
223
224 cli->sendMsg(ResponseCode::InterfaceGetCfgResult, msg, false);
225
226 free(addr_s);
227 free(mask_s);
228 free(flag_s);
229 free(msg);
230 return 0;
231 } else if (!strcmp(argv[1], "setcfg")) {
232 // arglist: iface addr mask [flags]
233 if (argc < 5) {
234 cli->sendMsg(ResponseCode::CommandSyntaxError, "Missing argument", false);
235 return 0;
236 }
237 LOGD("Setting iface cfg");
238
239 struct in_addr addr, mask;
240 unsigned flags = 0;
241
242 if (!inet_aton(argv[3], &addr)) {
243 cli->sendMsg(ResponseCode::CommandParameterError, "Invalid address", false);
244 return 0;
245 }
246
247 if (!inet_aton(argv[4], &mask)) {
248 cli->sendMsg(ResponseCode::CommandParameterError, "Invalid netmask", false);
249 return 0;
250 }
251
252 ifc_init();
253 if (ifc_set_addr(argv[2], addr.s_addr)) {
254 cli->sendMsg(ResponseCode::OperationFailed, "Failed to set address", true);
255 return 0;
256 }
257
258 if (ifc_set_mask(argv[2], mask.s_addr)) {
259 cli->sendMsg(ResponseCode::OperationFailed, "Failed to set netmask", true);
260 return 0;
261 }
262
263 /* Process flags */
264 /* read from "[XX" arg to "YY]" arg */
265 bool bStarted = false;
266 for (int i = 5; i < argc; i++) {
267 char *flag = argv[i];
268 if (!bStarted) {
269 if (*flag == '[') {
270 flag++;
271 bStarted = true;
272 } else {
273 continue;
274 }
275 }
276 int len = strlen(flag);
277 if (flag[len-1] == ']') {
278 i = argc; // stop after this loop
279 flag[len-1] = 0;
280 }
281 if (!strcmp(flag, "up")) {
282 LOGD("Trying to bring up %s", argv[2]);
283 if (ifc_up(argv[2])) {
284 LOGE("Error upping interface");
285 cli->sendMsg(ResponseCode::OperationFailed, "Failed to up interface", true);
286 return 0;
287 }
288 } else if (!strcmp(flag, "down")) {
289 LOGD("Trying to bring down %s", argv[2]);
290 if (ifc_down(argv[2])) {
291 LOGE("Error downing interface");
292 cli->sendMsg(ResponseCode::OperationFailed, "Failed to down interface", true);
293 return 0;
294 }
295 } else if (!strcmp(flag, "broadcast")) {
296 LOGD("broadcast flag ignored");
297 } else if (!strcmp(flag, "multicast")) {
298 LOGD("multicast flag ignored");
299 } else {
300 cli->sendMsg(ResponseCode::CommandParameterError, "Flag unsupported", false);
301 return 0;
302 }
303 }
304 cli->sendMsg(ResponseCode::CommandOkay, "Interface configuration set", false);
305 return 0;
306 } else {
307 cli->sendMsg(ResponseCode::CommandSyntaxError, "Unknown interface cmd", false);
308 return 0;
309 }
310 }
311 return 0;
312 }
313
ListTtysCmd()314 CommandListener::ListTtysCmd::ListTtysCmd() :
315 NetdCommand("list_ttys") {
316 }
317
runCommand(SocketClient * cli,int argc,char ** argv)318 int CommandListener::ListTtysCmd::runCommand(SocketClient *cli,
319 int argc, char **argv) {
320 TtyCollection *tlist = sPppCtrl->getTtyList();
321 TtyCollection::iterator it;
322
323 for (it = tlist->begin(); it != tlist->end(); ++it) {
324 cli->sendMsg(ResponseCode::TtyListResult, *it, false);
325 }
326
327 cli->sendMsg(ResponseCode::CommandOkay, "Ttys listed.", false);
328 return 0;
329 }
330
IpFwdCmd()331 CommandListener::IpFwdCmd::IpFwdCmd() :
332 NetdCommand("ipfwd") {
333 }
334
runCommand(SocketClient * cli,int argc,char ** argv)335 int CommandListener::IpFwdCmd::runCommand(SocketClient *cli,
336 int argc, char **argv) {
337 int rc = 0;
338
339 if (argc < 2) {
340 cli->sendMsg(ResponseCode::CommandSyntaxError, "Missing argument", false);
341 return 0;
342 }
343
344 if (!strcmp(argv[1], "status")) {
345 char *tmp = NULL;
346
347 asprintf(&tmp, "Forwarding %s", (sTetherCtrl->getIpFwdEnabled() ? "enabled" : "disabled"));
348 cli->sendMsg(ResponseCode::IpFwdStatusResult, tmp, false);
349 free(tmp);
350 return 0;
351 } else if (!strcmp(argv[1], "enable")) {
352 rc = sTetherCtrl->setIpFwdEnabled(true);
353 } else if (!strcmp(argv[1], "disable")) {
354 rc = sTetherCtrl->setIpFwdEnabled(false);
355 } else {
356 cli->sendMsg(ResponseCode::CommandSyntaxError, "Unknown ipfwd cmd", false);
357 return 0;
358 }
359
360 if (!rc) {
361 cli->sendMsg(ResponseCode::CommandOkay, "ipfwd operation succeeded", false);
362 } else {
363 cli->sendMsg(ResponseCode::OperationFailed, "ipfwd operation failed", true);
364 }
365
366 return 0;
367 }
368
TetherCmd()369 CommandListener::TetherCmd::TetherCmd() :
370 NetdCommand("tether") {
371 }
372
runCommand(SocketClient * cli,int argc,char ** argv)373 int CommandListener::TetherCmd::runCommand(SocketClient *cli,
374 int argc, char **argv) {
375 int rc = 0;
376
377 if (argc < 2) {
378 cli->sendMsg(ResponseCode::CommandSyntaxError, "Missing argument", false);
379 return 0;
380 }
381
382 if (!strcmp(argv[1], "stop")) {
383 rc = sTetherCtrl->stopTethering();
384 } else if (!strcmp(argv[1], "status")) {
385 char *tmp = NULL;
386
387 asprintf(&tmp, "Tethering services %s",
388 (sTetherCtrl->isTetheringStarted() ? "started" : "stopped"));
389 cli->sendMsg(ResponseCode::TetherStatusResult, tmp, false);
390 free(tmp);
391 return 0;
392 } else {
393 /*
394 * These commands take a minimum of 4 arguments
395 */
396 if (argc < 4) {
397 cli->sendMsg(ResponseCode::CommandSyntaxError, "Missing argument", false);
398 return 0;
399 }
400
401 if (!strcmp(argv[1], "start")) {
402 if (argc % 2 == 1) {
403 cli->sendMsg(ResponseCode::CommandSyntaxError, "Bad number of arguments", false);
404 return 0;
405 }
406
407 int num_addrs = argc - 2;
408 int arg_index = 2;
409 int array_index = 0;
410 in_addr *addrs = (in_addr *)malloc(sizeof(in_addr) * num_addrs);
411 while (array_index < num_addrs) {
412 if (!inet_aton(argv[arg_index++], &(addrs[array_index++]))) {
413 cli->sendMsg(ResponseCode::CommandParameterError, "Invalid address", false);
414 free(addrs);
415 return 0;
416 }
417 }
418 rc = sTetherCtrl->startTethering(num_addrs, addrs);
419 free(addrs);
420 } else if (!strcmp(argv[1], "interface")) {
421 if (!strcmp(argv[2], "add")) {
422 rc = sTetherCtrl->tetherInterface(argv[3]);
423 } else if (!strcmp(argv[2], "remove")) {
424 rc = sTetherCtrl->untetherInterface(argv[3]);
425 } else if (!strcmp(argv[2], "list")) {
426 InterfaceCollection *ilist = sTetherCtrl->getTetheredInterfaceList();
427 InterfaceCollection::iterator it;
428
429 for (it = ilist->begin(); it != ilist->end(); ++it) {
430 cli->sendMsg(ResponseCode::TetherInterfaceListResult, *it, false);
431 }
432 } else {
433 cli->sendMsg(ResponseCode::CommandParameterError,
434 "Unknown tether interface operation", false);
435 return 0;
436 }
437 } else if (!strcmp(argv[1], "dns")) {
438 if (!strcmp(argv[2], "set")) {
439 rc = sTetherCtrl->setDnsForwarders(&argv[3], argc - 3);
440 } else if (!strcmp(argv[2], "list")) {
441 NetAddressCollection *dlist = sTetherCtrl->getDnsForwarders();
442 NetAddressCollection::iterator it;
443
444 for (it = dlist->begin(); it != dlist->end(); ++it) {
445 cli->sendMsg(ResponseCode::TetherDnsFwdTgtListResult, inet_ntoa(*it), false);
446 }
447 } else {
448 cli->sendMsg(ResponseCode::CommandParameterError,
449 "Unknown tether interface operation", false);
450 return 0;
451 }
452 } else {
453 cli->sendMsg(ResponseCode::CommandSyntaxError, "Unknown tether cmd", false);
454 return 0;
455 }
456 }
457
458 if (!rc) {
459 cli->sendMsg(ResponseCode::CommandOkay, "Tether operation succeeded", false);
460 } else {
461 cli->sendMsg(ResponseCode::OperationFailed, "Tether operation failed", true);
462 }
463
464 return 0;
465 }
466
NatCmd()467 CommandListener::NatCmd::NatCmd() :
468 NetdCommand("nat") {
469 }
470
runCommand(SocketClient * cli,int argc,char ** argv)471 int CommandListener::NatCmd::runCommand(SocketClient *cli,
472 int argc, char **argv) {
473 int rc = 0;
474
475 if (argc < 3) {
476 cli->sendMsg(ResponseCode::CommandSyntaxError, "Missing argument", false);
477 return 0;
478 }
479
480 if (!strcmp(argv[1], "enable")) {
481 rc = sNatCtrl->enableNat(argv[2], argv[3]);
482 } else if (!strcmp(argv[1], "disable")) {
483 rc = sNatCtrl->disableNat(argv[2], argv[3]);
484 } else {
485 cli->sendMsg(ResponseCode::CommandSyntaxError, "Unknown nat cmd", false);
486 return 0;
487 }
488
489 if (!rc) {
490 cli->sendMsg(ResponseCode::CommandOkay, "Nat operation succeeded", false);
491 } else {
492 cli->sendMsg(ResponseCode::OperationFailed, "Nat operation failed", true);
493 }
494
495 return 0;
496 }
497
PppdCmd()498 CommandListener::PppdCmd::PppdCmd() :
499 NetdCommand("pppd") {
500 }
501
runCommand(SocketClient * cli,int argc,char ** argv)502 int CommandListener::PppdCmd::runCommand(SocketClient *cli,
503 int argc, char **argv) {
504 int rc = 0;
505
506 if (argc < 3) {
507 cli->sendMsg(ResponseCode::CommandSyntaxError, "Missing argument", false);
508 return 0;
509 }
510
511 if (!strcmp(argv[1], "attach")) {
512 struct in_addr l, r, dns1, dns2;
513
514 memset(&dns1, sizeof(struct in_addr), 0);
515 memset(&dns2, sizeof(struct in_addr), 0);
516
517 if (!inet_aton(argv[3], &l)) {
518 cli->sendMsg(ResponseCode::CommandParameterError, "Invalid local address", false);
519 return 0;
520 }
521 if (!inet_aton(argv[4], &r)) {
522 cli->sendMsg(ResponseCode::CommandParameterError, "Invalid remote address", false);
523 return 0;
524 }
525 if ((argc > 3) && (!inet_aton(argv[5], &dns1))) {
526 cli->sendMsg(ResponseCode::CommandParameterError, "Invalid dns1 address", false);
527 return 0;
528 }
529 if ((argc > 4) && (!inet_aton(argv[6], &dns2))) {
530 cli->sendMsg(ResponseCode::CommandParameterError, "Invalid dns2 address", false);
531 return 0;
532 }
533 rc = sPppCtrl->attachPppd(argv[2], l, r, dns1, dns2);
534 } else if (!strcmp(argv[1], "detach")) {
535 rc = sPppCtrl->detachPppd(argv[2]);
536 } else {
537 cli->sendMsg(ResponseCode::CommandSyntaxError, "Unknown pppd cmd", false);
538 return 0;
539 }
540
541 if (!rc) {
542 cli->sendMsg(ResponseCode::CommandOkay, "Pppd operation succeeded", false);
543 } else {
544 cli->sendMsg(ResponseCode::OperationFailed, "Pppd operation failed", true);
545 }
546
547 return 0;
548 }
549
PanCmd()550 CommandListener::PanCmd::PanCmd() :
551 NetdCommand("pan") {
552 }
553
runCommand(SocketClient * cli,int argc,char ** argv)554 int CommandListener::PanCmd::runCommand(SocketClient *cli,
555 int argc, char **argv) {
556 int rc = 0;
557
558 if (argc < 2) {
559 cli->sendMsg(ResponseCode::CommandSyntaxError, "Missing argument", false);
560 return 0;
561 }
562
563 if (!strcmp(argv[1], "start")) {
564 rc = sPanCtrl->startPan();
565 } else if (!strcmp(argv[1], "stop")) {
566 rc = sPanCtrl->stopPan();
567 } else if (!strcmp(argv[1], "status")) {
568 char *tmp = NULL;
569
570 asprintf(&tmp, "Pan services %s",
571 (sPanCtrl->isPanStarted() ? "started" : "stopped"));
572 cli->sendMsg(ResponseCode::PanStatusResult, tmp, false);
573 free(tmp);
574 return 0;
575 } else {
576 cli->sendMsg(ResponseCode::CommandSyntaxError, "Unknown pan cmd", false);
577 return 0;
578 }
579
580 if (!rc) {
581 cli->sendMsg(ResponseCode::CommandOkay, "Pan operation succeeded", false);
582 } else {
583 cli->sendMsg(ResponseCode::OperationFailed, "Pan operation failed", true);
584 }
585
586 return 0;
587 }
588
SoftapCmd()589 CommandListener::SoftapCmd::SoftapCmd() :
590 NetdCommand("softap") {
591 }
592
runCommand(SocketClient * cli,int argc,char ** argv)593 int CommandListener::SoftapCmd::runCommand(SocketClient *cli,
594 int argc, char **argv) {
595 int rc = 0, flag = 0;
596
597 if (argc < 2) {
598 cli->sendMsg(ResponseCode::CommandSyntaxError, "Softap Missing argument", false);
599 return 0;
600 }
601
602 if (!strcmp(argv[1], "start")) {
603 rc = sSoftapCtrl->startDriver(argv[2]);
604 } else if (!strcmp(argv[1], "stop")) {
605 rc = sSoftapCtrl->stopDriver(argv[2]);
606 } else if (!strcmp(argv[1], "startap")) {
607 rc = sSoftapCtrl->startSoftap();
608 } else if (!strcmp(argv[1], "stopap")) {
609 rc = sSoftapCtrl->stopSoftap();
610 } else if (!strcmp(argv[1], "fwreload")) {
611 rc = sSoftapCtrl->fwReloadSoftap(argc, argv);
612 } else if (!strcmp(argv[1], "status")) {
613 char *tmp = NULL;
614
615 asprintf(&tmp, "Softap service %s",
616 (sSoftapCtrl->isSoftapStarted() ? "started" : "stopped"));
617 cli->sendMsg(ResponseCode::SoftapStatusResult, tmp, false);
618 free(tmp);
619 return 0;
620 } else if (!strcmp(argv[1], "set")) {
621 rc = sSoftapCtrl->setSoftap(argc, argv);
622 } else {
623 cli->sendMsg(ResponseCode::CommandSyntaxError, "Softap Unknown cmd", false);
624 return 0;
625 }
626
627 if (!rc) {
628 cli->sendMsg(ResponseCode::CommandOkay, "Softap operation succeeded", false);
629 } else {
630 cli->sendMsg(ResponseCode::OperationFailed, "Softap operation failed", true);
631 }
632
633 return 0;
634 }
635
UsbCmd()636 CommandListener::UsbCmd::UsbCmd() :
637 NetdCommand("usb") {
638 }
639
runCommand(SocketClient * cli,int argc,char ** argv)640 int CommandListener::UsbCmd::runCommand(SocketClient *cli, int argc, char **argv) {
641 int rc = 0;
642
643 if (argc < 2) {
644 cli->sendMsg(ResponseCode::CommandSyntaxError, "Usb Missing argument", false);
645 return 0;
646 }
647
648 if (!strcmp(argv[1], "startrndis")) {
649 rc = sUsbCtrl->startRNDIS();
650 } else if (!strcmp(argv[1], "stoprndis")) {
651 rc = sUsbCtrl->stopRNDIS();
652 } else if (!strcmp(argv[1], "rndisstatus")) {
653 char *tmp = NULL;
654
655 asprintf(&tmp, "Usb RNDIS %s",
656 (sUsbCtrl->isRNDISStarted() ? "started" : "stopped"));
657 cli->sendMsg(ResponseCode::UsbRNDISStatusResult, tmp, false);
658 free(tmp);
659 return 0;
660 } else {
661 cli->sendMsg(ResponseCode::CommandSyntaxError, "Usb Unknown cmd", false);
662 return 0;
663 }
664
665 if (!rc) {
666 cli->sendMsg(ResponseCode::CommandOkay, "Usb operation succeeded", false);
667 } else {
668 cli->sendMsg(ResponseCode::OperationFailed, "Softap operation failed", true);
669 }
670
671 return 0;
672 }
673
readInterfaceCounters(const char * iface,unsigned long * rx,unsigned long * tx)674 int CommandListener::readInterfaceCounters(const char *iface, unsigned long *rx, unsigned long *tx) {
675 FILE *fp = fopen("/proc/net/dev", "r");
676 if (!fp) {
677 LOGE("Failed to open /proc/net/dev (%s)", strerror(errno));
678 return -1;
679 }
680
681 char buffer[512];
682
683 fgets(buffer, sizeof(buffer), fp); // Header 1
684 fgets(buffer, sizeof(buffer), fp); // Header 2
685 while(fgets(buffer, sizeof(buffer), fp)) {
686 buffer[strlen(buffer)-1] = '\0';
687
688 char name[31];
689 unsigned long d;
690 sscanf(buffer, "%30s %lu %lu %lu %lu %lu %lu %lu %lu %lu",
691 name, rx, &d, &d, &d, &d, &d, &d, &d, tx);
692 char *rxString = strchr(name, ':');
693 *rxString = '\0';
694 rxString++;
695 // when the rx count gets too big it changes from "name: 999" to "name:1000"
696 // and the sscanf munge the two together. Detect that and fix
697 // note that all the %lu will be off by one and the real tx value will be in d
698 if (*rxString != '\0') {
699 *tx = d;
700 sscanf(rxString, "%20lu", rx);
701 }
702 if (strcmp(name, iface)) {
703 continue;
704 }
705 fclose(fp);
706 return 0;
707 }
708
709 fclose(fp);
710 *rx = 0;
711 *tx = 0;
712 return 0;
713 }
714