setting an AES encryption key (Y) needs a length-byte
[hmcfgusb] / hmland.c
CommitLineData
4732a863 1/* HM-CFG-LAN emulation for HM-CFG-USB
9db2e455
MG
2 *
3 * Copyright (c) 2013 Michael Gernoth <michael@gernoth.net>
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a copy
6 * of this software and associated documentation files (the "Software"), to
7 * deal in the Software without restriction, including without limitation the
8 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
9 * sell copies of the Software, and to permit persons to whom the Software is
10 * furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice shall be included in
13 * all copies or substantial portions of the Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
21 * IN THE SOFTWARE.
22 */
23
24#include <stdio.h>
25#include <stdlib.h>
26#include <unistd.h>
27#include <stdint.h>
28#include <string.h>
29#include <strings.h>
30#include <poll.h>
4371275b 31#include <signal.h>
9db2e455 32#include <errno.h>
e0a7146e
MG
33#include <sys/types.h>
34#include <sys/socket.h>
b0bf6ad2 35#include <sys/stat.h>
e6ab4631 36#include <fcntl.h>
e0a7146e
MG
37#include <netinet/in.h>
38#include <arpa/inet.h>
9db2e455
MG
39#include <libusb-1.0/libusb.h>
40
41#include "hexdump.h"
42#include "hmcfgusb.h"
43
b0bf6ad2
MG
44#define PID_FILE "/var/run/hmland.pid"
45
627e3f33
MG
46extern char *optarg;
47
e0a7146e 48static int impersonate_hmlanif = 0;
627e3f33
MG
49static int debug = 0;
50static int verbose = 0;
e0a7146e 51
e75295bb
MG
52#define FLAG_LENGTH_BYTE (1<<0)
53#define FLAG_FORMAT_HEX (1<<1)
54#define FLAG_COMMA_BEFORE (1<<2)
55#define FLAG_COMMA_AFTER (1<<3)
56#define FLAG_NL (1<<4)
57#define FLAG_IGNORE_COMMAS (1<<5)
58
59#define CHECK_SPACE(x) if ((*outpos + x) > outend) { fprintf(stderr, "Not enough space!\n"); return 0; }
60#define CHECK_AVAIL(x) if ((*inpos + x) > inend) { fprintf(stderr, "Not enough input available!\n"); return 0; }
61
62static int format_part_out(uint8_t **inpos, int inlen, uint8_t **outpos, int outlen, int len, int flags)
63{
51d4ece6
MG
64 const uint8_t nibble[16] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
65 'A', 'B', 'C', 'D', 'E', 'F'};
e75295bb
MG
66 uint8_t *buf_out = *outpos;
67 uint8_t *outend = *outpos + outlen;
68 uint8_t *inend = *inpos + inlen;
69 int i;
70
71 if (flags & FLAG_COMMA_BEFORE) {
72 CHECK_SPACE(1);
73 **outpos=',';
74 *outpos += 1;
75 }
76
77 if (flags & FLAG_LENGTH_BYTE) {
78 CHECK_AVAIL(1);
79 len = **inpos;
80 *inpos += 1;
81 }
82
83 if (flags & FLAG_FORMAT_HEX) {
e75295bb
MG
84 CHECK_AVAIL(len);
85 CHECK_SPACE(len*2);
86 for (i = 0; i < len; i++) {
51d4ece6
MG
87 **outpos = nibble[((**inpos) & 0xf0) >> 4];
88 *outpos += 1;
89 **outpos = nibble[((**inpos) & 0xf)];
90 *inpos += 1; *outpos += 1;
e75295bb
MG
91 }
92 } else {
93 CHECK_AVAIL(len);
94 CHECK_SPACE(len);
95 memcpy(*outpos, *inpos, len);
96 *outpos += len;
97 *inpos += len;
98 }
99
100 if (flags & FLAG_COMMA_AFTER) {
101 CHECK_SPACE(1);
102 **outpos=',';
103 *outpos += 1;
104 }
105
106 if (flags & FLAG_NL) {
107 CHECK_SPACE(2);
108 **outpos='\r';
109 *outpos += 1;
110 **outpos='\n';
111 *outpos += 1;
112 }
113
114 return *outpos - buf_out;
115}
116
51d4ece6
MG
117static uint8_t ascii_to_nibble(uint8_t a)
118{
119 uint8_t c = 0x00;
120
121 if ((a >= '0') && (a <= '9')) {
122 c = a - '0';
123 } else if ((a >= 'A') && (a <= 'F')) {
124 c = (a - 'A') + 10;
125 } else if ((a >= 'a') && (a <= 'f')) {
126 c = (a - 'a') + 10;
127 }
128
129 return c;
130}
131
e75295bb
MG
132static int parse_part_in(uint8_t **inpos, int inlen, uint8_t **outpos, int outlen, int flags)
133{
134 uint8_t *buf_out = *outpos;
135 uint8_t *outend = *outpos + outlen;
136 uint8_t *inend = *inpos + inlen;
e75295bb
MG
137
138 if (flags & FLAG_LENGTH_BYTE) {
139 int len = 0;
140 uint8_t *ip;
141
142 ip = *inpos;
143 while(ip < inend) {
144 if (*ip == ',') {
145 ip++;
146 if (!(flags & FLAG_IGNORE_COMMAS))
147 break;
148
149 continue;
150 }
151 len++;
152 ip++;
153 }
154 CHECK_SPACE(1);
155 **outpos = (len / 2);
156 *outpos += 1;
157 }
158
159 while(*inpos < inend) {
160 if (**inpos == ',') {
161 *inpos += 1;
162 if (!(flags & FLAG_IGNORE_COMMAS))
163 break;
164
165 continue;
166 }
167
168 CHECK_SPACE(1);
169 CHECK_AVAIL(2);
e75295bb 170
51d4ece6
MG
171 **outpos = ascii_to_nibble(**inpos) << 4;
172 *inpos += 1;
173 **outpos |= ascii_to_nibble(**inpos);
174 *inpos += 1; *outpos += 1;
e75295bb
MG
175 }
176
177 return *outpos - buf_out;
178}
179
4371275b 180static int hmlan_format_out(uint8_t *buf, int buf_len, void *data)
9db2e455 181{
e75295bb
MG
182 uint8_t out[1024];
183 uint8_t *outpos;
184 uint8_t *inpos;
e0a7146e 185 int fd = *((int*)data);
4371275b 186 int w;
9db2e455
MG
187
188 if (buf_len < 1)
4371275b 189 return 1;
9db2e455 190
e0a7146e 191 memset(out, 0, sizeof(out));
e75295bb
MG
192 outpos = out;
193 inpos = buf;
e0a7146e 194
e75295bb 195 format_part_out(&inpos, (buf_len-(inpos-buf)), &outpos, (sizeof(out)-(outpos-out)), 1, 0);
9db2e455
MG
196 switch(buf[0]) {
197 case 'H':
e0a7146e
MG
198 if (impersonate_hmlanif) {
199 buf[5] = 'L';
200 buf[6] = 'A';
201 buf[7] = 'N';
202 }
e75295bb
MG
203 format_part_out(&inpos, (buf_len-(inpos-buf)), &outpos, (sizeof(out)-(outpos-out)), 0, FLAG_LENGTH_BYTE);
204 format_part_out(&inpos, (buf_len-(inpos-buf)), &outpos, (sizeof(out)-(outpos-out)), 2, FLAG_FORMAT_HEX | FLAG_COMMA_BEFORE);
205 format_part_out(&inpos, (buf_len-(inpos-buf)), &outpos, (sizeof(out)-(outpos-out)), 0, FLAG_COMMA_BEFORE | FLAG_LENGTH_BYTE);
206 format_part_out(&inpos, (buf_len-(inpos-buf)), &outpos, (sizeof(out)-(outpos-out)), 3, FLAG_FORMAT_HEX | FLAG_COMMA_BEFORE);
207 format_part_out(&inpos, (buf_len-(inpos-buf)), &outpos, (sizeof(out)-(outpos-out)), 3, FLAG_FORMAT_HEX | FLAG_COMMA_BEFORE);
208 format_part_out(&inpos, (buf_len-(inpos-buf)), &outpos, (sizeof(out)-(outpos-out)), 4, FLAG_FORMAT_HEX | FLAG_COMMA_BEFORE);
209 format_part_out(&inpos, (buf_len-(inpos-buf)), &outpos, (sizeof(out)-(outpos-out)), 2, FLAG_FORMAT_HEX | FLAG_COMMA_BEFORE | FLAG_NL);
9db2e455
MG
210
211 break;
212 case 'E':
e75295bb
MG
213 format_part_out(&inpos, (buf_len-(inpos-buf)), &outpos, (sizeof(out)-(outpos-out)), 3, FLAG_FORMAT_HEX);
214 format_part_out(&inpos, (buf_len-(inpos-buf)), &outpos, (sizeof(out)-(outpos-out)), 2, FLAG_FORMAT_HEX | FLAG_COMMA_BEFORE);
215 format_part_out(&inpos, (buf_len-(inpos-buf)), &outpos, (sizeof(out)-(outpos-out)), 4, FLAG_FORMAT_HEX | FLAG_COMMA_BEFORE);
216 format_part_out(&inpos, (buf_len-(inpos-buf)), &outpos, (sizeof(out)-(outpos-out)), 1, FLAG_FORMAT_HEX | FLAG_COMMA_BEFORE);
217 format_part_out(&inpos, (buf_len-(inpos-buf)), &outpos, (sizeof(out)-(outpos-out)), 2, FLAG_FORMAT_HEX | FLAG_COMMA_BEFORE);
218 format_part_out(&inpos, (buf_len-(inpos-buf)), &outpos, (sizeof(out)-(outpos-out)), 0, FLAG_FORMAT_HEX | FLAG_COMMA_BEFORE | FLAG_LENGTH_BYTE | FLAG_NL);
219
9db2e455
MG
220 break;
221 case 'R':
e75295bb
MG
222 format_part_out(&inpos, (buf_len-(inpos-buf)), &outpos, (sizeof(out)-(outpos-out)), 4, FLAG_FORMAT_HEX);
223 format_part_out(&inpos, (buf_len-(inpos-buf)), &outpos, (sizeof(out)-(outpos-out)), 2, FLAG_FORMAT_HEX | FLAG_COMMA_BEFORE);
224 format_part_out(&inpos, (buf_len-(inpos-buf)), &outpos, (sizeof(out)-(outpos-out)), 4, FLAG_FORMAT_HEX | FLAG_COMMA_BEFORE);
225 format_part_out(&inpos, (buf_len-(inpos-buf)), &outpos, (sizeof(out)-(outpos-out)), 1, FLAG_FORMAT_HEX | FLAG_COMMA_BEFORE);
226 format_part_out(&inpos, (buf_len-(inpos-buf)), &outpos, (sizeof(out)-(outpos-out)), 2, FLAG_FORMAT_HEX | FLAG_COMMA_BEFORE);
227 format_part_out(&inpos, (buf_len-(inpos-buf)), &outpos, (sizeof(out)-(outpos-out)), 0, FLAG_FORMAT_HEX | FLAG_COMMA_BEFORE | FLAG_LENGTH_BYTE | FLAG_NL);
228
9db2e455
MG
229 break;
230 case 'I':
e75295bb
MG
231 format_part_out(&inpos, (buf_len-(inpos-buf)), &outpos, (sizeof(out)-(outpos-out)), 1, FLAG_FORMAT_HEX);
232 format_part_out(&inpos, (buf_len-(inpos-buf)), &outpos, (sizeof(out)-(outpos-out)), 1, FLAG_FORMAT_HEX | FLAG_COMMA_BEFORE);
233 format_part_out(&inpos, (buf_len-(inpos-buf)), &outpos, (sizeof(out)-(outpos-out)), 1, FLAG_FORMAT_HEX | FLAG_COMMA_BEFORE);
234 format_part_out(&inpos, (buf_len-(inpos-buf)), &outpos, (sizeof(out)-(outpos-out)), 1, FLAG_FORMAT_HEX | FLAG_COMMA_BEFORE | FLAG_NL);
235
236 break;
9db2e455 237 default:
e75295bb 238 format_part_out(&inpos, (buf_len-(inpos-buf)), &outpos, (sizeof(out)-(outpos-out)), buf_len-1, FLAG_FORMAT_HEX | FLAG_NL);
9db2e455
MG
239 hexdump(buf, buf_len, "Unknown> ");
240 break;
241 }
627e3f33
MG
242 if (debug)
243 fprintf(stderr, "LAN < %s\n", out);
4371275b
MG
244
245 w = write(fd, out, outpos-out);
246 if (w <= 0) {
247 perror("write");
248 return 0;
249 }
250
251 return 1;
9db2e455
MG
252}
253
e0a7146e 254static int hmlan_parse_in(int fd, void *data)
9db2e455
MG
255{
256 struct hmcfgusb_dev *dev = data;
627e3f33 257 uint8_t buf[1025];
e75295bb
MG
258 uint8_t out[0x40]; //FIXME!!!
259 uint8_t *outpos;
260 uint8_t *inpos;
9db2e455 261 int i;
627e3f33 262 int last;
9db2e455
MG
263 int r;
264
627e3f33
MG
265 memset(buf, 0, sizeof(buf));
266
267 r = read(fd, buf, sizeof(buf)-1);
9db2e455 268 if (r > 0) {
627e3f33
MG
269 uint8_t *inend = buf + r;
270
271 inpos = buf;
272
273 if (debug)
e2572b06 274 fprintf(stderr, "\nLAN > %s", buf);
627e3f33
MG
275
276 while (inpos < inend) {
277 uint8_t *instart = inpos;
278
279 if ((*inpos == '\r') || (*inpos == '\n')) {
280 inpos++;
281 continue;
9db2e455 282 }
627e3f33
MG
283
284 outpos = out;
9db2e455 285
627e3f33
MG
286 last = inend - inpos;
287
288 for (i = 0; i < last; i++) {
289 if ((inpos[i] == '\r') || (inpos[i] == '\n')) {
290 last = i;
291 break;
292 }
293 }
294
295 if (last == 0)
296 continue;
297
298 memset(out, 0, sizeof(out));
299 *outpos++ = *inpos++;
300
03ca736e 301 switch(*instart) {
627e3f33
MG
302 case 'S':
303 parse_part_in(&inpos, (last-(inpos-instart)), &outpos, (sizeof(out)-(outpos-out)), 0);
304 parse_part_in(&inpos, (last-(inpos-instart)), &outpos, (sizeof(out)-(outpos-out)), 0);
305 parse_part_in(&inpos, (last-(inpos-instart)), &outpos, (sizeof(out)-(outpos-out)), 0);
306 parse_part_in(&inpos, (last-(inpos-instart)), &outpos, (sizeof(out)-(outpos-out)), 0);
307 parse_part_in(&inpos, (last-(inpos-instart)), &outpos, (sizeof(out)-(outpos-out)), 0);
308 parse_part_in(&inpos, (last-(inpos-instart)), &outpos, (sizeof(out)-(outpos-out)), FLAG_LENGTH_BYTE);
309 break;
d419ace3
MG
310 case 'Y':
311 parse_part_in(&inpos, (last-(inpos-instart)), &outpos, (sizeof(out)-(outpos-out)), 0);
312 parse_part_in(&inpos, (last-(inpos-instart)), &outpos, (sizeof(out)-(outpos-out)), 0);
313 parse_part_in(&inpos, (last-(inpos-instart)), &outpos, (sizeof(out)-(outpos-out)), FLAG_LENGTH_BYTE);
627e3f33
MG
314 default:
315 parse_part_in(&inpos, (last-(inpos-instart)), &outpos, (sizeof(out)-(outpos-out)), FLAG_IGNORE_COMMAS);
316 break;
317 }
e75295bb 318
33df13be 319 hmcfgusb_send(dev, out, sizeof(out), 1);
627e3f33 320 }
9db2e455
MG
321 } else if (r < 0) {
322 perror("read");
e0a7146e
MG
323 return r;
324 } else {
325 return 0;
9db2e455 326 }
e0a7146e
MG
327
328 return 1;
9db2e455
MG
329}
330
23d96b59 331static int comm(int fd_in, int fd_out, int master_socket, int flags)
9db2e455
MG
332{
333 struct hmcfgusb_dev *dev;
23d96b59 334 uint8_t out[0x40]; //FIXME!!!
9db2e455
MG
335 int quit = 0;
336
627e3f33
MG
337 hmcfgusb_set_debug(debug);
338
e0a7146e 339 dev = hmcfgusb_init(hmlan_format_out, &fd_out);
9db2e455
MG
340 if (!dev) {
341 fprintf(stderr, "Can't initialize HM-CFG-USB!\n");
e0a7146e
MG
342 return 0;
343 }
344
345 if (!hmcfgusb_add_pfd(dev, fd_in, POLLIN)) {
346 fprintf(stderr, "Can't add client to pollfd!\n");
347 hmcfgusb_close(dev);
348 return 0;
9db2e455
MG
349 }
350
e0a7146e
MG
351 if (master_socket >= 0) {
352 if (!hmcfgusb_add_pfd(dev, master_socket, POLLIN)) {
353 fprintf(stderr, "Can't add master_socket to pollfd!\n");
354 hmcfgusb_close(dev);
355 return 0;
356 }
9db2e455
MG
357 }
358
23d96b59
MG
359 memset(out, 0, sizeof(out));
360 out[0] = 'K';
e09806b6 361 hmcfgusb_send_null_frame(dev);
23d96b59 362 hmcfgusb_send(dev, out, sizeof(out), 1);
9db2e455
MG
363
364 while(!quit) {
365 int fd;
366
b55c340d 367 fd = hmcfgusb_poll(dev, 1); /* Wakeup device/bus at least once a second */
9db2e455 368 if (fd >= 0) {
e0a7146e
MG
369 if (fd == master_socket) {
370 int client;
371
372 client = accept(master_socket, NULL, 0);
373 if (client >= 0) {
374 shutdown(client, SHUT_RDWR);
375 close(client);
376 }
377 } else {
378 if (hmlan_parse_in(fd, dev) <= 0) {
379 quit = 1;
380 }
381 }
9db2e455
MG
382 } else if (fd == -1) {
383 if (errno) {
384 perror("hmcfgusb_poll");
385 quit = 1;
23d96b59
MG
386 } else {
387 /* periodically wakeup the device */
388 hmcfgusb_send_null_frame(dev);
9db2e455
MG
389 }
390 }
391 }
392
813afd12 393 hmcfgusb_close(dev);
e0a7146e
MG
394 return 1;
395}
396
b0bf6ad2
MG
397void sigterm_handler(int sig)
398{
399 if (unlink(PID_FILE) == -1)
400 perror("Can't remove PID file");
401
402 exit(EXIT_SUCCESS);
403}
404
405#define FLAG_DAEMON (1 << 0)
406#define FLAG_PID_FILE (1 << 1)
407
408static int socket_server(char *iface, int port, int flags)
e0a7146e 409{
4371275b 410 struct sigaction sact;
e0a7146e
MG
411 struct sockaddr_in sin;
412 int sock;
413 int n;
627e3f33
MG
414 pid_t pid;
415
b0bf6ad2
MG
416 if (flags & FLAG_DAEMON) {
417 FILE *pidfile = NULL;
418
419 if (flags & FLAG_PID_FILE) {
e6ab4631
MG
420 int fd;
421
422 fd = open(PID_FILE, O_CREAT | O_EXCL | O_WRONLY, 0644);
423 if (fd == -1) {
424 if (errno == EEXIST) {
425 pid_t old_pid;
426 pidfile = fopen(PID_FILE, "r");
427 if (!pidfile) {
428 perror("PID file " PID_FILE " already exists, already running?");
429 exit(EXIT_FAILURE);
430 }
431
432 if (fscanf(pidfile, "%u", &old_pid) != 1) {
433 fclose(pidfile);
434 fprintf(stderr, "Can't read old PID from " PID_FILE ", already running?\n");
435 exit(EXIT_FAILURE);
436 }
437
438 fclose(pidfile);
439
440 fprintf(stderr, "Already running with PID %u according to " PID_FILE "!\n", old_pid);
441 exit(EXIT_FAILURE);
442 }
443 perror("Can't create PID file " PID_FILE);
444 exit(EXIT_FAILURE);
445 }
b0bf6ad2 446
e6ab4631 447 pidfile = fdopen(fd, "w");
b0bf6ad2 448 if (!pidfile) {
e6ab4631 449 perror("Can't reopen PID file fd");
b0bf6ad2
MG
450 exit(EXIT_FAILURE);
451 }
452
453 memset(&sact, 0, sizeof(sact));
454 sact.sa_handler = sigterm_handler;
455
456 if (sigaction(SIGTERM, &sact, NULL) == -1) {
457 perror("sigaction(SIGTERM)");
458 exit(EXIT_FAILURE);
459 }
460 }
461
627e3f33
MG
462 pid = fork();
463 if (pid > 0) {
b0bf6ad2
MG
464 if (pidfile) {
465 fprintf(pidfile, "%u\n", pid);
466 fclose(pidfile);
467 }
468
627e3f33
MG
469 printf("Daemon with PID %u started!\n", pid);
470 exit(EXIT_SUCCESS);
471 } else if (pid < 0) {
472 perror("fork");
473 exit(EXIT_FAILURE);
474 }
b0bf6ad2
MG
475
476 if (pidfile)
477 fclose(pidfile);
627e3f33 478 }
e0a7146e 479
4371275b
MG
480 memset(&sact, 0, sizeof(sact));
481 sact.sa_handler = SIG_IGN;
482
483 if (sigaction(SIGPIPE, &sact, NULL) == -1) {
b0bf6ad2 484 perror("sigaction(SIGPIPE)");
27f4063e 485 exit(EXIT_FAILURE);
4371275b
MG
486 }
487
e0a7146e
MG
488 impersonate_hmlanif = 1;
489
490 sock = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP);
491 if (sock == -1) {
492 perror("Can't open socket");
493 return EXIT_FAILURE;
494 }
495
496 n = 1;
497 if (setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, &n, sizeof(n)) == -1) {
498 perror("Can't set socket options");
499 return EXIT_FAILURE;
500 }
501
502 memset(&sin, 0, sizeof(sin));
503 sin.sin_family = AF_INET;
504 sin.sin_port = htons(port);
4a8a2269
MG
505 if (!iface) {
506 sin.sin_addr.s_addr = htonl(INADDR_ANY);
507 } else {
508 if (inet_pton(AF_INET, iface, &(sin.sin_addr.s_addr)) != 1) {
509 perror("inet_ntop");
510 return EXIT_FAILURE;
511 }
512 }
e0a7146e
MG
513
514 if (bind(sock, (struct sockaddr*)&sin, sizeof(sin)) == -1) {
515 perror("Can't bind socket");
516 return EXIT_FAILURE;
517 }
518
519 if (listen(sock, 1) == -1) {
520 perror("Can't listen on socket");
521 return EXIT_FAILURE;
522 }
523
524 while(1) {
525 struct sockaddr_in csin;
526 socklen_t csinlen;
527 int client;
627e3f33 528 in_addr_t client_addr;
e0a7146e
MG
529
530 memset(&csin, 0, sizeof(csin));
531 csinlen = sizeof(csin);
532 client = accept(sock, (struct sockaddr*)&csin, &csinlen);
533 if (client == -1) {
534 perror("Couldn't accept client");
535 continue;
536 }
537
627e3f33
MG
538 /* FIXME: getnameinfo... */
539 client_addr = ntohl(csin.sin_addr.s_addr);
540
541 if (verbose) {
542 printf("Client %d.%d.%d.%d connected!\n",
543 (client_addr & 0xff000000) >> 24,
544 (client_addr & 0x00ff0000) >> 16,
545 (client_addr & 0x0000ff00) >> 8,
546 (client_addr & 0x000000ff));
547 }
e0a7146e 548
23d96b59 549 comm(client, client, sock, flags);
e0a7146e
MG
550
551 shutdown(client, SHUT_RDWR);
552 close(client);
553
627e3f33
MG
554 if (verbose) {
555 printf("Connection to %d.%d.%d.%d closed!\n",
556 (client_addr & 0xff000000) >> 24,
557 (client_addr & 0x00ff0000) >> 16,
558 (client_addr & 0x0000ff00) >> 8,
559 (client_addr & 0x000000ff));
560 }
e09806b6 561 sleep(1);
e0a7146e
MG
562 }
563
564 return EXIT_SUCCESS;
565}
566
23d96b59 567static int interactive_server(int flags)
e0a7146e 568{
23d96b59 569 if (!comm(STDIN_FILENO, STDOUT_FILENO, -1, flags))
e0a7146e 570 return EXIT_FAILURE;
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571
572 return EXIT_SUCCESS;
573}
e0a7146e 574
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575void hmlan_syntax(char *prog)
576{
577 fprintf(stderr, "Syntax: %s options\n\n", prog);
578 fprintf(stderr, "Possible options:\n");
579 fprintf(stderr, "\t-D\tdebug mode\n");
580 fprintf(stderr, "\t-d\tdaemon mode\n");
581 fprintf(stderr, "\t-h\tthis help\n");
582 fprintf(stderr, "\t-i\tinteractive mode (connect HM-CFG-USB to terminal)\n");
4a8a2269 583 fprintf(stderr, "\t-l ip\tlisten on given IP address only (for example 127.0.0.1)\n");
b0bf6ad2 584 fprintf(stderr, "\t-P\tcreate PID file " PID_FILE " in daemon mode\n");
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585 fprintf(stderr, "\t-p n\tlisten on port n (default 1000)\n");
586 fprintf(stderr, "\t-v\tverbose mode\n");
587
588}
589
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590int main(int argc, char **argv)
591{
627e3f33 592 int port = 1000;
4a8a2269 593 char *iface = NULL;
627e3f33 594 int interactive = 0;
b0bf6ad2 595 int flags = 0;
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596 char *ep;
597 int opt;
598
23d96b59 599 while((opt = getopt(argc, argv, "DdhiPp:Rl:v")) != -1) {
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600 switch (opt) {
601 case 'D':
602 debug = 1;
603 verbose = 1;
604 break;
605 case 'd':
b0bf6ad2 606 flags |= FLAG_DAEMON;
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607 break;
608 case 'i':
609 interactive = 1;
610 break;
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611 case 'P':
612 flags |= FLAG_PID_FILE;
613 break;
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614 case 'p':
615 port = strtoul(optarg, &ep, 10);
616 if (*ep != '\0') {
617 fprintf(stderr, "Can't parse port!\n");
618 exit(EXIT_FAILURE);
619 }
620 break;
23d96b59 621 case 'R':
b55c340d 622 fprintf(stderr, "-R is no longer needed (1s wakeup is default)\n");
23d96b59 623 break;
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624 case 'l':
625 iface = optarg;
626 break;
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627 case 'v':
628 verbose = 1;
629 break;
630 case 'h':
631 case ':':
632 case '?':
633 default:
634 hmlan_syntax(argv[0]);
635 exit(EXIT_FAILURE);
636 break;
637 }
638 }
639
640 if (interactive) {
23d96b59 641 return interactive_server(flags);
627e3f33 642 } else {
b0bf6ad2 643 return socket_server(iface, port, flags);
627e3f33 644 }
e0a7146e 645}
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