CommandListener.cpp revision 80adaddfe0a997d7c9f45fafbd6f8b05e14d119c 
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#include <string.h>
25
26#include <linux/if.h>
27
28#define LOG_TAG "CommandListener"
29#include <cutils/log.h>
30
31#include <sysutils/SocketClient.h>
32
33#include "CommandListener.h"
34#include "ResponseCode.h"
35#include "ThrottleController.h"
36
37
38extern "C" int ifc_init(void);
39extern "C" int ifc_get_hwaddr(const char *name, void *ptr);
40extern "C" int ifc_get_info(const char *name, in_addr_t *addr, int *prefixLength, unsigned *flags);
41extern "C" int ifc_set_addr(const char *name, in_addr_t addr);
42extern "C" int ifc_set_prefixLength(const char *name, int prefixLength);
43extern "C" int ifc_up(const char *name);
44extern "C" int ifc_down(const char *name);
45extern "C" int ifc_add_route(const char *name, const char *dst, int prefix_length, const char *gw);
46extern "C" int ifc_remove_route(const char *name, const char *dst, int p_length, const char *gw);
47
48TetherController *CommandListener::sTetherCtrl = NULL;
49NatController *CommandListener::sNatCtrl = NULL;
50PppController *CommandListener::sPppCtrl = NULL;
51PanController *CommandListener::sPanCtrl = NULL;
52SoftapController *CommandListener::sSoftapCtrl = NULL;
53UsbController *CommandListener::sUsbCtrl = NULL;
54ResolverController *CommandListener::sResolverCtrl = NULL;
55
56CommandListener::CommandListener() :
57                 FrameworkListener("netd") {
58    registerCmd(new InterfaceCmd());
59    registerCmd(new IpFwdCmd());
60    registerCmd(new TetherCmd());
61    registerCmd(new NatCmd());
62    registerCmd(new ListTtysCmd());
63    registerCmd(new PppdCmd());
64    registerCmd(new PanCmd());
65    registerCmd(new SoftapCmd());
66    registerCmd(new UsbCmd());
67    registerCmd(new ResolverCmd());
68
69    if (!sTetherCtrl)
70        sTetherCtrl = new TetherController();
71    if (!sNatCtrl)
72        sNatCtrl = new NatController();
73    if (!sPppCtrl)
74        sPppCtrl = new PppController();
75    if (!sPanCtrl)
76        sPanCtrl = new PanController();
77    if (!sSoftapCtrl)
78        sSoftapCtrl = new SoftapController();
79    if (!sUsbCtrl)
80        sUsbCtrl = new UsbController();
81    if (!sResolverCtrl)
82        sResolverCtrl = new ResolverController();
83}
84
85CommandListener::InterfaceCmd::InterfaceCmd() :
86                 NetdCommand("interface") {
87}
88
89int CommandListener::InterfaceCmd::runCommand(SocketClient *cli,
90                                                      int argc, char **argv) {
91    if (argc < 2) {
92        cli->sendMsg(ResponseCode::CommandSyntaxError, "Missing argument", false);
93        return 0;
94    }
95
96    if (!strcmp(argv[1], "list")) {
97        DIR *d;
98        struct dirent *de;
99
100        if (!(d = opendir("/sys/class/net"))) {
101            cli->sendMsg(ResponseCode::OperationFailed, "Failed to open sysfs dir", true);
102            return 0;
103        }
104
105        while((de = readdir(d))) {
106            if (de->d_name[0] == '.')
107                continue;
108            cli->sendMsg(ResponseCode::InterfaceListResult, de->d_name, false);
109        }
110        closedir(d);
111        cli->sendMsg(ResponseCode::CommandOkay, "Interface list completed", false);
112        return 0;
113    } else if (!strcmp(argv[1], "readrxcounter")) {
114        if (argc != 3) {
115            cli->sendMsg(ResponseCode::CommandSyntaxError,
116                    "Usage: interface readrxcounter <interface>", false);
117            return 0;
118        }
119        unsigned long rx = 0, tx = 0;
120        if (readInterfaceCounters(argv[2], &rx, &tx)) {
121            cli->sendMsg(ResponseCode::OperationFailed, "Failed to read counters", true);
122            return 0;
123        }
124
125        char *msg;
126        asprintf(&msg, "%lu", rx);
127        cli->sendMsg(ResponseCode::InterfaceRxCounterResult, msg, false);
128        free(msg);
129
130        return 0;
131    } else if (!strcmp(argv[1], "readtxcounter")) {
132        if (argc != 3) {
133            cli->sendMsg(ResponseCode::CommandSyntaxError,
134                    "Usage: interface readtxcounter <interface>", false);
135            return 0;
136        }
137        unsigned long rx = 0, tx = 0;
138        if (readInterfaceCounters(argv[2], &rx, &tx)) {
139            cli->sendMsg(ResponseCode::OperationFailed, "Failed to read counters", true);
140            return 0;
141        }
142
143        char *msg = NULL;
144        asprintf(&msg, "%lu", tx);
145        cli->sendMsg(ResponseCode::InterfaceTxCounterResult, msg, false);
146        free(msg);
147        return 0;
148    } else if (!strcmp(argv[1], "getthrottle")) {
149        if (argc != 4 || (argc == 4 && (strcmp(argv[3], "rx") && (strcmp(argv[3], "tx"))))) {
150            cli->sendMsg(ResponseCode::CommandSyntaxError,
151                    "Usage: interface getthrottle <interface> <rx|tx>", false);
152            return 0;
153        }
154        int val = 0;
155        int rc = 0;
156        int voldRc = ResponseCode::InterfaceRxThrottleResult;
157
158        if (!strcmp(argv[3], "rx")) {
159            rc = ThrottleController::getInterfaceRxThrottle(argv[2], &val);
160        } else {
161            rc = ThrottleController::getInterfaceTxThrottle(argv[2], &val);
162            voldRc = ResponseCode::InterfaceTxThrottleResult;
163        }
164        if (rc) {
165            cli->sendMsg(ResponseCode::OperationFailed, "Failed to get throttle", true);
166        } else {
167            char *msg = NULL;
168            asprintf(&msg, "%u", val);
169            cli->sendMsg(voldRc, msg, false);
170            free(msg);
171            return 0;
172        }
173        return 0;
174    } else if (!strcmp(argv[1], "setthrottle")) {
175        if (argc != 5) {
176            cli->sendMsg(ResponseCode::CommandSyntaxError,
177                    "Usage: interface setthrottle <interface> <rx_kbps> <tx_kbps>", false);
178            return 0;
179        }
180        if (ThrottleController::setInterfaceThrottle(argv[2], atoi(argv[3]), atoi(argv[4]))) {
181            cli->sendMsg(ResponseCode::OperationFailed, "Failed to set throttle", true);
182        } else {
183            cli->sendMsg(ResponseCode::CommandOkay, "Interface throttling set", false);
184        }
185        return 0;
186    } else {
187        /*
188         * These commands take a minimum of 3 arguments
189         */
190        if (argc < 3) {
191            cli->sendMsg(ResponseCode::CommandSyntaxError, "Missing argument", false);
192            return 0;
193        }
194
195        if (!strcmp(argv[1], "route")) {
196            int prefix_length = 0;
197            if (argc < 7) {
198                cli->sendMsg(ResponseCode::CommandSyntaxError, "Missing argument", false);
199                return 0;
200            }
201            if (sscanf(argv[5], "%d", &prefix_length) != 1) {
202                cli->sendMsg(ResponseCode::CommandParameterError, "Invalid route prefix", false);
203                return 0;
204            }
205            if (!strcmp(argv[2], "add")) {
206                if (ifc_add_route(argv[3], argv[4], prefix_length, argv[6])) {
207                    cli->sendMsg(ResponseCode::OperationFailed, "Failed to add route", true);
208                } else {
209                    cli->sendMsg(ResponseCode::CommandOkay, "Route added", false);
210                }
211            } else if (!strcmp(argv[2], "remove")) {
212                if (ifc_remove_route(argv[3], argv[4], prefix_length, argv[6])) {
213                    cli->sendMsg(ResponseCode::OperationFailed, "Failed to remove route", true);
214                } else {
215                    cli->sendMsg(ResponseCode::CommandOkay, "Route removed", false);
216                }
217            } else {
218                cli->sendMsg(ResponseCode::CommandSyntaxError, "Unknown interface cmd", false);
219            }
220            return 0;
221        }
222
223        if (!strcmp(argv[1], "getcfg")) {
224            struct in_addr addr;
225            int prefixLength;
226            unsigned char hwaddr[6];
227            unsigned flags = 0;
228
229            ifc_init();
230            memset(hwaddr, 0, sizeof(hwaddr));
231
232            if (ifc_get_info(argv[2], &addr.s_addr, &prefixLength, &flags)) {
233                cli->sendMsg(ResponseCode::OperationFailed, "Interface not found", true);
234                return 0;
235            }
236
237            if (ifc_get_hwaddr(argv[2], (void *) hwaddr)) {
238                LOGW("Failed to retrieve HW addr for %s (%s)", argv[2], strerror(errno));
239            }
240
241            char *addr_s = strdup(inet_ntoa(addr));
242            const char *updown, *brdcst, *loopbk, *ppp, *running, *multi;
243
244            updown =  (flags & IFF_UP)           ? "up" : "down";
245            brdcst =  (flags & IFF_BROADCAST)    ? " broadcast" : "";
246            loopbk =  (flags & IFF_LOOPBACK)     ? " loopback" : "";
247            ppp =     (flags & IFF_POINTOPOINT)  ? " point-to-point" : "";
248            running = (flags & IFF_RUNNING)      ? " running" : "";
249            multi =   (flags & IFF_MULTICAST)    ? " multicast" : "";
250
251            char *flag_s;
252
253            asprintf(&flag_s, "[%s%s%s%s%s%s]", updown, brdcst, loopbk, ppp, running, multi);
254
255            char *msg = NULL;
256            asprintf(&msg, "%.2x:%.2x:%.2x:%.2x:%.2x:%.2x %s %d %s",
257                     hwaddr[0], hwaddr[1], hwaddr[2], hwaddr[3], hwaddr[4], hwaddr[5],
258                     addr_s, prefixLength, flag_s);
259
260            cli->sendMsg(ResponseCode::InterfaceGetCfgResult, msg, false);
261
262            free(addr_s);
263            free(flag_s);
264            free(msg);
265            return 0;
266        } else if (!strcmp(argv[1], "setcfg")) {
267            // arglist: iface addr prefixLength [flags]
268            if (argc < 5) {
269                cli->sendMsg(ResponseCode::CommandSyntaxError, "Missing argument", false);
270                return 0;
271            }
272            LOGD("Setting iface cfg");
273
274            struct in_addr addr;
275            unsigned flags = 0;
276
277            if (!inet_aton(argv[3], &addr)) {
278                cli->sendMsg(ResponseCode::CommandParameterError, "Invalid address", false);
279                return 0;
280            }
281
282            ifc_init();
283            if (ifc_set_addr(argv[2], addr.s_addr)) {
284                cli->sendMsg(ResponseCode::OperationFailed, "Failed to set address", true);
285                return 0;
286            }
287
288            if (ifc_set_prefixLength(argv[2], atoi(argv[4]))) {
289                cli->sendMsg(ResponseCode::OperationFailed, "Failed to set prefixLength", true);
290                return 0;
291            }
292
293            /* Process flags */
294            /* read from "[XX" arg to "YY]" arg */
295            bool bStarted = false;
296            for (int i = 5; i < argc; i++) {
297                char *flag = argv[i];
298                if (!bStarted) {
299                    if (*flag == '[') {
300                        flag++;
301                        bStarted = true;
302                    } else {
303                        continue;
304                    }
305                }
306                int len = strlen(flag);
307                if (flag[len-1] == ']') {
308                    i = argc;  // stop after this loop
309                    flag[len-1] = 0;
310                }
311                if (!strcmp(flag, "up")) {
312                    LOGD("Trying to bring up %s", argv[2]);
313                    if (ifc_up(argv[2])) {
314                        LOGE("Error upping interface");
315                        cli->sendMsg(ResponseCode::OperationFailed, "Failed to up interface", true);
316                        return 0;
317                    }
318                } else if (!strcmp(flag, "down")) {
319                    LOGD("Trying to bring down %s", argv[2]);
320                    if (ifc_down(argv[2])) {
321                        LOGE("Error downing interface");
322                        cli->sendMsg(ResponseCode::OperationFailed, "Failed to down interface", true);
323                        return 0;
324                    }
325                } else if (!strcmp(flag, "broadcast")) {
326                    LOGD("broadcast flag ignored");
327                } else if (!strcmp(flag, "multicast")) {
328                    LOGD("multicast flag ignored");
329                } else {
330                    cli->sendMsg(ResponseCode::CommandParameterError, "Flag unsupported", false);
331                    return 0;
332                }
333            }
334            cli->sendMsg(ResponseCode::CommandOkay, "Interface configuration set", false);
335            return 0;
336        } else {
337            cli->sendMsg(ResponseCode::CommandSyntaxError, "Unknown interface cmd", false);
338            return 0;
339        }
340    }
341    return 0;
342}
343
344CommandListener::ListTtysCmd::ListTtysCmd() :
345                 NetdCommand("list_ttys") {
346}
347
348int CommandListener::ListTtysCmd::runCommand(SocketClient *cli,
349                                             int argc, char **argv) {
350    TtyCollection *tlist = sPppCtrl->getTtyList();
351    TtyCollection::iterator it;
352
353    for (it = tlist->begin(); it != tlist->end(); ++it) {
354        cli->sendMsg(ResponseCode::TtyListResult, *it, false);
355    }
356
357    cli->sendMsg(ResponseCode::CommandOkay, "Ttys listed.", false);
358    return 0;
359}
360
361CommandListener::IpFwdCmd::IpFwdCmd() :
362                 NetdCommand("ipfwd") {
363}
364
365int CommandListener::IpFwdCmd::runCommand(SocketClient *cli,
366                                                      int argc, char **argv) {
367    int rc = 0;
368
369    if (argc < 2) {
370        cli->sendMsg(ResponseCode::CommandSyntaxError, "Missing argument", false);
371        return 0;
372    }
373
374    if (!strcmp(argv[1], "status")) {
375        char *tmp = NULL;
376
377        asprintf(&tmp, "Forwarding %s", (sTetherCtrl->getIpFwdEnabled() ? "enabled" : "disabled"));
378        cli->sendMsg(ResponseCode::IpFwdStatusResult, tmp, false);
379        free(tmp);
380        return 0;
381    } else if (!strcmp(argv[1], "enable")) {
382        rc = sTetherCtrl->setIpFwdEnabled(true);
383    } else if (!strcmp(argv[1], "disable")) {
384        rc = sTetherCtrl->setIpFwdEnabled(false);
385    } else {
386        cli->sendMsg(ResponseCode::CommandSyntaxError, "Unknown ipfwd cmd", false);
387        return 0;
388    }
389
390    if (!rc) {
391        cli->sendMsg(ResponseCode::CommandOkay, "ipfwd operation succeeded", false);
392    } else {
393        cli->sendMsg(ResponseCode::OperationFailed, "ipfwd operation failed", true);
394    }
395
396    return 0;
397}
398
399CommandListener::TetherCmd::TetherCmd() :
400                 NetdCommand("tether") {
401}
402
403int CommandListener::TetherCmd::runCommand(SocketClient *cli,
404                                                      int argc, char **argv) {
405    int rc = 0;
406
407    if (argc < 2) {
408        cli->sendMsg(ResponseCode::CommandSyntaxError, "Missing argument", false);
409        return 0;
410    }
411
412    if (!strcmp(argv[1], "stop")) {
413        rc = sTetherCtrl->stopTethering();
414    } else if (!strcmp(argv[1], "status")) {
415        char *tmp = NULL;
416
417        asprintf(&tmp, "Tethering services %s",
418                 (sTetherCtrl->isTetheringStarted() ? "started" : "stopped"));
419        cli->sendMsg(ResponseCode::TetherStatusResult, tmp, false);
420        free(tmp);
421        return 0;
422    } else {
423        /*
424         * These commands take a minimum of 4 arguments
425         */
426        if (argc < 4) {
427            cli->sendMsg(ResponseCode::CommandSyntaxError, "Missing argument", false);
428            return 0;
429        }
430
431        if (!strcmp(argv[1], "start")) {
432            if (argc % 2 == 1) {
433                cli->sendMsg(ResponseCode::CommandSyntaxError, "Bad number of arguments", false);
434                return 0;
435            }
436
437            int num_addrs = argc - 2;
438            int arg_index = 2;
439            int array_index = 0;
440            in_addr *addrs = (in_addr *)malloc(sizeof(in_addr) * num_addrs);
441            while (array_index < num_addrs) {
442                if (!inet_aton(argv[arg_index++], &(addrs[array_index++]))) {
443                    cli->sendMsg(ResponseCode::CommandParameterError, "Invalid address", false);
444                    free(addrs);
445                    return 0;
446                }
447            }
448            rc = sTetherCtrl->startTethering(num_addrs, addrs);
449            free(addrs);
450        } else if (!strcmp(argv[1], "interface")) {
451            if (!strcmp(argv[2], "add")) {
452                rc = sTetherCtrl->tetherInterface(argv[3]);
453            } else if (!strcmp(argv[2], "remove")) {
454                rc = sTetherCtrl->untetherInterface(argv[3]);
455            } else if (!strcmp(argv[2], "list")) {
456                InterfaceCollection *ilist = sTetherCtrl->getTetheredInterfaceList();
457                InterfaceCollection::iterator it;
458
459                for (it = ilist->begin(); it != ilist->end(); ++it) {
460                    cli->sendMsg(ResponseCode::TetherInterfaceListResult, *it, false);
461                }
462            } else {
463                cli->sendMsg(ResponseCode::CommandParameterError,
464                             "Unknown tether interface operation", false);
465                return 0;
466            }
467        } else if (!strcmp(argv[1], "dns")) {
468            if (!strcmp(argv[2], "set")) {
469                rc = sTetherCtrl->setDnsForwarders(&argv[3], argc - 3);
470            } else if (!strcmp(argv[2], "list")) {
471                NetAddressCollection *dlist = sTetherCtrl->getDnsForwarders();
472                NetAddressCollection::iterator it;
473
474                for (it = dlist->begin(); it != dlist->end(); ++it) {
475                    cli->sendMsg(ResponseCode::TetherDnsFwdTgtListResult, inet_ntoa(*it), false);
476                }
477            } else {
478                cli->sendMsg(ResponseCode::CommandParameterError,
479                             "Unknown tether interface operation", false);
480                return 0;
481            }
482        } else {
483            cli->sendMsg(ResponseCode::CommandSyntaxError, "Unknown tether cmd", false);
484            return 0;
485        }
486    }
487
488    if (!rc) {
489        cli->sendMsg(ResponseCode::CommandOkay, "Tether operation succeeded", false);
490    } else {
491        cli->sendMsg(ResponseCode::OperationFailed, "Tether operation failed", true);
492    }
493
494    return 0;
495}
496
497CommandListener::NatCmd::NatCmd() :
498                 NetdCommand("nat") {
499}
500
501int CommandListener::NatCmd::runCommand(SocketClient *cli,
502                                                      int argc, char **argv) {
503    int rc = 0;
504
505    if (argc < 3) {
506        cli->sendMsg(ResponseCode::CommandSyntaxError, "Missing argument", false);
507        return 0;
508    }
509
510    if (!strcmp(argv[1], "enable")) {
511        rc = sNatCtrl->enableNat(argv[2], argv[3]);
512    } else if (!strcmp(argv[1], "disable")) {
513        rc = sNatCtrl->disableNat(argv[2], argv[3]);
514    } else {
515        cli->sendMsg(ResponseCode::CommandSyntaxError, "Unknown nat cmd", false);
516        return 0;
517    }
518
519    if (!rc) {
520        cli->sendMsg(ResponseCode::CommandOkay, "Nat operation succeeded", false);
521    } else {
522        cli->sendMsg(ResponseCode::OperationFailed, "Nat operation failed", true);
523    }
524
525    return 0;
526}
527
528CommandListener::PppdCmd::PppdCmd() :
529                 NetdCommand("pppd") {
530}
531
532int CommandListener::PppdCmd::runCommand(SocketClient *cli,
533                                                      int argc, char **argv) {
534    int rc = 0;
535
536    if (argc < 3) {
537        cli->sendMsg(ResponseCode::CommandSyntaxError, "Missing argument", false);
538        return 0;
539    }
540
541    if (!strcmp(argv[1], "attach")) {
542        struct in_addr l, r, dns1, dns2;
543
544        memset(&dns1, sizeof(struct in_addr), 0);
545        memset(&dns2, sizeof(struct in_addr), 0);
546
547        if (!inet_aton(argv[3], &l)) {
548            cli->sendMsg(ResponseCode::CommandParameterError, "Invalid local address", false);
549            return 0;
550        }
551        if (!inet_aton(argv[4], &r)) {
552            cli->sendMsg(ResponseCode::CommandParameterError, "Invalid remote address", false);
553            return 0;
554        }
555        if ((argc > 3) && (!inet_aton(argv[5], &dns1))) {
556            cli->sendMsg(ResponseCode::CommandParameterError, "Invalid dns1 address", false);
557            return 0;
558        }
559        if ((argc > 4) && (!inet_aton(argv[6], &dns2))) {
560            cli->sendMsg(ResponseCode::CommandParameterError, "Invalid dns2 address", false);
561            return 0;
562        }
563        rc = sPppCtrl->attachPppd(argv[2], l, r, dns1, dns2);
564    } else if (!strcmp(argv[1], "detach")) {
565        rc = sPppCtrl->detachPppd(argv[2]);
566    } else {
567        cli->sendMsg(ResponseCode::CommandSyntaxError, "Unknown pppd cmd", false);
568        return 0;
569    }
570
571    if (!rc) {
572        cli->sendMsg(ResponseCode::CommandOkay, "Pppd operation succeeded", false);
573    } else {
574        cli->sendMsg(ResponseCode::OperationFailed, "Pppd operation failed", true);
575    }
576
577    return 0;
578}
579
580CommandListener::PanCmd::PanCmd() :
581                 NetdCommand("pan") {
582}
583
584int CommandListener::PanCmd::runCommand(SocketClient *cli,
585                                        int argc, char **argv) {
586    int rc = 0;
587
588    if (argc < 2) {
589        cli->sendMsg(ResponseCode::CommandSyntaxError, "Missing argument", false);
590        return 0;
591    }
592
593    if (!strcmp(argv[1], "start")) {
594        rc = sPanCtrl->startPan();
595    } else if (!strcmp(argv[1], "stop")) {
596        rc = sPanCtrl->stopPan();
597    } else if (!strcmp(argv[1], "status")) {
598        char *tmp = NULL;
599
600        asprintf(&tmp, "Pan services %s",
601                 (sPanCtrl->isPanStarted() ? "started" : "stopped"));
602        cli->sendMsg(ResponseCode::PanStatusResult, tmp, false);
603        free(tmp);
604        return 0;
605    } else {
606        cli->sendMsg(ResponseCode::CommandSyntaxError, "Unknown pan cmd", false);
607        return 0;
608    }
609
610    if (!rc) {
611        cli->sendMsg(ResponseCode::CommandOkay, "Pan operation succeeded", false);
612    } else {
613        cli->sendMsg(ResponseCode::OperationFailed, "Pan operation failed", true);
614    }
615
616    return 0;
617}
618
619CommandListener::SoftapCmd::SoftapCmd() :
620                 NetdCommand("softap") {
621}
622
623int CommandListener::SoftapCmd::runCommand(SocketClient *cli,
624                                        int argc, char **argv) {
625    int rc = 0, flag = 0;
626
627    if (argc < 2) {
628        cli->sendMsg(ResponseCode::CommandSyntaxError, "Softap Missing argument", false);
629        return 0;
630    }
631
632    if (!strcmp(argv[1], "start")) {
633        rc = sSoftapCtrl->startDriver(argv[2]);
634    } else if (!strcmp(argv[1], "stop")) {
635        rc = sSoftapCtrl->stopDriver(argv[2]);
636    } else if (!strcmp(argv[1], "startap")) {
637        rc = sSoftapCtrl->startSoftap();
638    } else if (!strcmp(argv[1], "stopap")) {
639        rc = sSoftapCtrl->stopSoftap();
640    } else if (!strcmp(argv[1], "fwreload")) {
641        rc = sSoftapCtrl->fwReloadSoftap(argc, argv);
642    } else if (!strcmp(argv[1], "status")) {
643        char *tmp = NULL;
644
645        asprintf(&tmp, "Softap service %s",
646                 (sSoftapCtrl->isSoftapStarted() ? "started" : "stopped"));
647        cli->sendMsg(ResponseCode::SoftapStatusResult, tmp, false);
648        free(tmp);
649        return 0;
650    } else if (!strcmp(argv[1], "set")) {
651        rc = sSoftapCtrl->setSoftap(argc, argv);
652    } else {
653        cli->sendMsg(ResponseCode::CommandSyntaxError, "Softap Unknown cmd", false);
654        return 0;
655    }
656
657    if (!rc) {
658        cli->sendMsg(ResponseCode::CommandOkay, "Softap operation succeeded", false);
659    } else {
660        cli->sendMsg(ResponseCode::OperationFailed, "Softap operation failed", true);
661    }
662
663    return 0;
664}
665
666CommandListener::UsbCmd::UsbCmd() :
667                 NetdCommand("usb") {
668}
669
670int CommandListener::UsbCmd::runCommand(SocketClient *cli, int argc, char **argv) {
671    int rc = 0;
672
673    if (argc < 2) {
674        cli->sendMsg(ResponseCode::CommandSyntaxError, "Usb Missing argument", false);
675        return 0;
676    }
677
678    if (!strcmp(argv[1], "startrndis")) {
679        rc = sUsbCtrl->startRNDIS();
680    } else if (!strcmp(argv[1], "stoprndis")) {
681        rc = sUsbCtrl->stopRNDIS();
682    } else if (!strcmp(argv[1], "rndisstatus")) {
683        char *tmp = NULL;
684
685        asprintf(&tmp, "Usb RNDIS %s",
686                (sUsbCtrl->isRNDISStarted() ? "started" : "stopped"));
687        cli->sendMsg(ResponseCode::UsbRNDISStatusResult, tmp, false);
688        free(tmp);
689        return 0;
690    } else {
691        cli->sendMsg(ResponseCode::CommandSyntaxError, "Usb Unknown cmd", false);
692        return 0;
693    }
694
695    if (!rc) {
696        cli->sendMsg(ResponseCode::CommandOkay, "Usb operation succeeded", false);
697    } else {
698        cli->sendMsg(ResponseCode::OperationFailed, "Softap operation failed", true);
699    }
700
701    return 0;
702}
703
704CommandListener::ResolverCmd::ResolverCmd() :
705        NetdCommand("resolver") {
706}
707
708int CommandListener::ResolverCmd::runCommand(SocketClient *cli, int argc, char **argv) {
709    int rc = 0;
710    struct in_addr addr;
711
712    if (argc < 2) {
713        cli->sendMsg(ResponseCode::CommandSyntaxError, "Resolver missing arguments", false);
714        return 0;
715    }
716
717    if (!strcmp(argv[1], "setdefaultif")) { // "resolver setdefaultif <iface>"
718        if (argc == 3) {
719            rc = sResolverCtrl->setDefaultInterface(argv[2]);
720        } else {
721            cli->sendMsg(ResponseCode::CommandSyntaxError,
722                    "Wrong number of arguments to resolver setdefaultif", false);
723            return 0;
724        }
725    } else if (!strcmp(argv[1], "setifdns")) { // "resolver setifdns <iface> <dns1> <dns2> ..."
726        if (argc >= 4) {
727            rc = sResolverCtrl->setInterfaceDnsServers(argv[2], &argv[3], argc - 3);
728        } else {
729            cli->sendMsg(ResponseCode::CommandSyntaxError,
730                    "Wrong number of arguments to resolver setifdns", false);
731            return 0;
732        }
733
734        // set the address of the interface to which the name servers
735        // are bound. Required in order to bind to right interface when
736        // doing the dns query.
737        if (!rc) {
738            ifc_init();
739            ifc_get_info(argv[2], &addr.s_addr, NULL, 0);
740
741            rc = sResolverCtrl->setInterfaceAddress(argv[2], &addr);
742        }
743    } else if (!strcmp(argv[1], "flushdefaultif")) { // "resolver flushdefaultif"
744        if (argc == 2) {
745            rc = sResolverCtrl->flushDefaultDnsCache();
746        } else {
747            cli->sendMsg(ResponseCode::CommandSyntaxError,
748                    "Wrong number of arguments to resolver flushdefaultif", false);
749            return 0;
750        }
751    } else if (!strcmp(argv[1], "flushif")) { // "resolver flushif <iface>"
752        if (argc == 3) {
753            rc = sResolverCtrl->flushInterfaceDnsCache(argv[2]);
754        } else {
755            cli->sendMsg(ResponseCode::CommandSyntaxError,
756                    "Wrong number of arguments to resolver setdefaultif", false);
757            return 0;
758        }
759    } else {
760        cli->sendMsg(ResponseCode::CommandSyntaxError,"Resolver unknown command", false);
761        return 0;
762    }
763
764    if (!rc) {
765        cli->sendMsg(ResponseCode::CommandOkay, "Resolver command succeeded", false);
766    } else {
767        cli->sendMsg(ResponseCode::OperationFailed, "Resolver command failed", true);
768    }
769
770    return 0;
771}
772
773int CommandListener::readInterfaceCounters(const char *iface, unsigned long *rx, unsigned long *tx) {
774    FILE *fp = fopen("/proc/net/dev", "r");
775    if (!fp) {
776        LOGE("Failed to open /proc/net/dev (%s)", strerror(errno));
777        return -1;
778    }
779
780    char buffer[512];
781
782    fgets(buffer, sizeof(buffer), fp); // Header 1
783    fgets(buffer, sizeof(buffer), fp); // Header 2
784    while(fgets(buffer, sizeof(buffer), fp)) {
785        buffer[strlen(buffer)-1] = '\0';
786
787        char name[31];
788        unsigned long d;
789        sscanf(buffer, "%30s %lu %lu %lu %lu %lu %lu %lu %lu %lu",
790                name, rx, &d, &d, &d, &d, &d, &d, &d, tx);
791        char *rxString = strchr(name, ':');
792        *rxString = '\0';
793        rxString++;
794        // when the rx count gets too big it changes from "name: 999" to "name:1000"
795        // and the sscanf munge the two together.  Detect that and fix
796        // note that all the %lu will be off by one and the real tx value will be in d
797        if (*rxString != '\0') {
798            *tx = d;
799            sscanf(rxString, "%20lu", rx);
800        }
801        if (strcmp(name, iface)) {
802            continue;
803        }
804        fclose(fp);
805        return 0;
806    }
807
808    fclose(fp);
809    *rx = 0;
810    *tx = 0;
811    return 0;
812}
813