1 | //roard.c: |
---|
2 | |
---|
3 | #include "roard.h" |
---|
4 | |
---|
5 | char * server = ROAR_DEFAULT_SOCK_GLOBAL; // global server address |
---|
6 | |
---|
7 | void usage (void) { |
---|
8 | printf("Usage: roard [OPTIONS]...\n\n"); |
---|
9 | |
---|
10 | printf("Misc Options:\n\n"); |
---|
11 | printf( |
---|
12 | " --demon - Bring the server into background after init\n" |
---|
13 | " --terminate - Terminate after last client quited\n" |
---|
14 | " --restart - Trys to stop an old instance and start a new with new settings\n" |
---|
15 | " --realtime - Trys to get realtime priority,\n" |
---|
16 | " give multible times for being more realtime\n" |
---|
17 | " --chroot DIR - chroots to the given dir\n" |
---|
18 | " --setgid - GroupID to the audio group as specified via -G\n" |
---|
19 | " --setuid - UserID to the audio user as specified via -U\n" |
---|
20 | ); |
---|
21 | |
---|
22 | printf("\nAudio Options:\n\n"); |
---|
23 | printf( |
---|
24 | " -R --rate RATE - Set server rate\n" |
---|
25 | " -B --bits BITS - Set server bits\n" |
---|
26 | " -C --chans CHANNELS - Set server channels\n" |
---|
27 | ); |
---|
28 | |
---|
29 | printf("\nDriver Options:\n\n"); |
---|
30 | printf(" -d --driver DRV - Set the driver, use '-d list' to get a list (default: %s)\n", ROAR_DRIVER_DEFAULT); |
---|
31 | printf(" -D --device DEV - Set the device\n"); |
---|
32 | printf(" -dO OPTS - Set output options\n"); |
---|
33 | |
---|
34 | printf("\nSource Options:\n\n"); |
---|
35 | printf(" -s --source DRV - Use DRV as input driver\n" |
---|
36 | " -S DEV - Use DEV as input device\n" |
---|
37 | " -sO OPTS - Use OPTS as input options\n" |
---|
38 | " -sP - Make souce as primary\n" |
---|
39 | ); |
---|
40 | |
---|
41 | printf("\nCodec Filter Options:\n\n"); |
---|
42 | printf(" --list-cf - List all codec filter\n" |
---|
43 | ); |
---|
44 | |
---|
45 | printf("\nServer Options:\n\n"); |
---|
46 | printf(" -t --tcp - Use TCP listen socket\n" |
---|
47 | " -u --unix - Use UNIX Domain listen socket (default)\n" |
---|
48 | " -p --port - TCP Port to bind to\n" |
---|
49 | " -b --bind - IP/Hostname to bind to\n" |
---|
50 | " -s --sock - Filename for UNIX Domain Socket\n" |
---|
51 | " -G GROUP - Sets the group for the UNIX Domain Socket, (default: audio)\n" |
---|
52 | " You need the permittions to change the GID\n" |
---|
53 | " -U USER - Sets the user for the UNIX Domain Socket, (default: do not set)\n" |
---|
54 | " You need the permittions to change the UID (normaly only root has)\n" |
---|
55 | " --no-listen - Do not listen for new clients (only usefull for relaing)\n" |
---|
56 | " --client-fh - Comunicate with a client over this handle\n" |
---|
57 | " (only usefull for relaing)\n" |
---|
58 | ); |
---|
59 | // printf("\n Options:\n\n"); |
---|
60 | printf("\n"); |
---|
61 | } |
---|
62 | |
---|
63 | #define R_SETUID 1 |
---|
64 | #define R_SETGID 2 |
---|
65 | |
---|
66 | int main (int argc, char * argv[]) { |
---|
67 | int i; |
---|
68 | char * k; |
---|
69 | char user_sock[80] = {0}; |
---|
70 | struct roar_audio_info sa; |
---|
71 | int demon = 0; |
---|
72 | int realtime = 0; |
---|
73 | char * driver = getenv("ROAR_DRIVER"); |
---|
74 | char * device = getenv("ROAR_DEVICE"); |
---|
75 | char * opts = NULL; |
---|
76 | // char * server = ROAR_DEFAULT_SOCK_GLOBAL; |
---|
77 | int port = ROAR_DEFAULT_PORT; |
---|
78 | int drvid; |
---|
79 | char * s_dev = NULL; |
---|
80 | char * s_con = NULL; |
---|
81 | char * s_opt = NULL; |
---|
82 | int s_prim = 0; |
---|
83 | char * sock_grp = "audio"; |
---|
84 | char * sock_user = NULL; |
---|
85 | char * chrootdir = NULL; |
---|
86 | int setids = 0; |
---|
87 | struct group * grp = NULL; |
---|
88 | struct passwd * pwd = NULL; |
---|
89 | struct servent * serv = NULL; |
---|
90 | DRIVER_USERDATA_T drvinst; |
---|
91 | struct roar_client * self = NULL; |
---|
92 | |
---|
93 | g_listen_socket = -1; |
---|
94 | g_standby = 0; |
---|
95 | |
---|
96 | sa.bits = ROAR_BITS_DEFAULT; |
---|
97 | sa.channels = ROAR_CHANNELS_DEFAULT; |
---|
98 | sa.rate = ROAR_RATE_DEFAULT; |
---|
99 | sa.codec = ROAR_CODEC_DEFAULT; |
---|
100 | |
---|
101 | g_sa = &sa; |
---|
102 | |
---|
103 | |
---|
104 | if ( getuid() != 0 && getenv("HOME") ) { |
---|
105 | snprintf(user_sock, 79, "%s/%s", getenv("HOME"), ROAR_DEFAULT_SOCK_USER); |
---|
106 | server = user_sock; |
---|
107 | } |
---|
108 | |
---|
109 | if ( getenv("ROAR_SERVER") != NULL ) |
---|
110 | server = getenv("ROAR_SERVER"); |
---|
111 | |
---|
112 | if ( clients_init() == -1 ) { |
---|
113 | ROAR_ERR("Can not init clients!"); |
---|
114 | return 1; |
---|
115 | } |
---|
116 | |
---|
117 | if ( streams_init() == -1 ) { |
---|
118 | ROAR_ERR("Can not init streams!"); |
---|
119 | return 1; |
---|
120 | } |
---|
121 | |
---|
122 | if ( (g_self_client = clients_new()) == -1 ) { |
---|
123 | ROAR_ERR("Can not create self client!"); |
---|
124 | return 1; |
---|
125 | } |
---|
126 | |
---|
127 | if ( sources_init() == -1 ) { |
---|
128 | ROAR_ERR("Can not init sources!"); |
---|
129 | return 1; |
---|
130 | } |
---|
131 | |
---|
132 | if ( (sources_set_client(g_self_client)) == -1 ) { |
---|
133 | ROAR_ERR("Can not init set source client!"); |
---|
134 | return 1; |
---|
135 | } |
---|
136 | |
---|
137 | for (i = 1; i < argc; i++) { |
---|
138 | k = argv[i]; |
---|
139 | |
---|
140 | if ( strcmp(k, "-h") == 0 || strcmp(k, "--help") == 0 ) { |
---|
141 | usage(); |
---|
142 | return 0; |
---|
143 | |
---|
144 | } else if ( strcmp(k, "--demon") == 0 ) { |
---|
145 | demon = 1; |
---|
146 | } else if ( strcmp(k, "--terminate") == 0 ) { |
---|
147 | g_terminate = 1; |
---|
148 | } else if ( strcmp(k, "--realtime") == 0 ) { |
---|
149 | realtime++; |
---|
150 | } else if ( strcmp(k, "--chroot") == 0 ) { |
---|
151 | chrootdir = argv[++i]; |
---|
152 | } else if ( strcmp(k, "--setgid") == 0 ) { |
---|
153 | setids |= R_SETGID; |
---|
154 | } else if ( strcmp(k, "--setuid") == 0 ) { |
---|
155 | setids |= R_SETUID; |
---|
156 | |
---|
157 | } else if ( strcmp(k, "--list-cf") == 0 ) { |
---|
158 | print_codecfilterlist(); |
---|
159 | return 0; |
---|
160 | |
---|
161 | } else if ( strcmp(k, "-R") == 0 || strcmp(k, "--rate") == 0 ) { |
---|
162 | sa.rate = atoi(argv[++i]); |
---|
163 | } else if ( strcmp(k, "-B") == 0 || strcmp(k, "--bits") == 0 ) { |
---|
164 | sa.bits = atoi(argv[++i]); |
---|
165 | } else if ( strcmp(k, "-C") == 0 || strcmp(k, "--chans") == 0 ) { |
---|
166 | sa.channels = atoi(argv[++i]); |
---|
167 | |
---|
168 | } else if ( strcmp(k, "-d") == 0 || strcmp(k, "--driver") == 0 ) { |
---|
169 | driver = argv[++i]; |
---|
170 | if ( strcmp(driver, "list") == 0 ) { |
---|
171 | print_driverlist(); |
---|
172 | } |
---|
173 | } else if ( strcmp(k, "-D") == 0 || strcmp(k, "--device") == 0 ) { |
---|
174 | device = argv[++i]; |
---|
175 | } else if ( strcmp(k, "-dO") == 0 ) { |
---|
176 | opts = argv[++i]; |
---|
177 | |
---|
178 | } else if ( strcmp(k, "-s") == 0 || strcmp(k, "--source") == 0 ) { |
---|
179 | k = argv[++i]; |
---|
180 | if ( sources_add(k, s_dev, s_con, s_opt, s_prim) == -1 ) { |
---|
181 | ROAR_ERR("main(*): adding source '%s' via '%s' failed!", s_dev, k); |
---|
182 | } |
---|
183 | s_opt = s_dev = s_con = NULL; |
---|
184 | s_prim = 0; |
---|
185 | } else if ( strcmp(k, "-S") == 0 ) { |
---|
186 | s_dev = argv[++i]; |
---|
187 | } else if ( strcmp(k, "-sO") == 0 ) { |
---|
188 | s_opt = argv[++i]; |
---|
189 | } else if ( strcmp(k, "-sC") == 0 ) { |
---|
190 | s_con = argv[++i]; |
---|
191 | } else if ( strcmp(k, "-sP") == 0 ) { |
---|
192 | s_prim = 1; |
---|
193 | |
---|
194 | } else if ( strcmp(k, "-p") == 0 || strcmp(k, "--port") == 0 ) { |
---|
195 | errno = 0; |
---|
196 | if ( (port = atoi(argv[++i])) < 1 ) { |
---|
197 | if ( (serv = getservbyname(argv[i], "tcp")) == NULL ) { |
---|
198 | ROAR_ERR("Unknown service: %s: %s", argv[i], strerror(errno)); |
---|
199 | return 1; |
---|
200 | } |
---|
201 | // NOTE: we need to use ROAR_NET2HOST16() here even if s_port is of type int! |
---|
202 | ROAR_DBG("main(*): serv = {s_name='%s', s_aliases={...}, s_port=%i, s_proto='%s'}", |
---|
203 | serv->s_name, ROAR_NET2HOST16(serv->s_port), serv->s_proto); |
---|
204 | port = ROAR_NET2HOST16(serv->s_port); |
---|
205 | } |
---|
206 | } else if ( strcmp(k, "-b") == 0 || strcmp(k, "--bind") == 0 || strcmp(k, "-s") == 0 || strcmp(k, "--sock") == 0 ) { |
---|
207 | server = argv[++i]; |
---|
208 | } else if ( strcmp(k, "-t") == 0 ) { |
---|
209 | server = ROAR_DEFAULT_HOST; |
---|
210 | } else if ( strcmp(k, "-u") == 0 ) { |
---|
211 | // ignore this case as it is the default behavor. |
---|
212 | } else if ( strcmp(k, "-G") == 0 ) { |
---|
213 | sock_grp = argv[++i]; |
---|
214 | } else if ( strcmp(k, "-U") == 0 ) { |
---|
215 | sock_user = argv[++i]; |
---|
216 | |
---|
217 | } else if ( strcmp(k, "--no-listen") == 0 ) { |
---|
218 | *server = 0; |
---|
219 | } else if ( strcmp(k, "--client-fh") == 0 ) { |
---|
220 | if ( clients_set_fh(clients_new(), atoi(argv[++i])) == -1 ) { |
---|
221 | ROAR_ERR("main(*): Can not set client's fh"); |
---|
222 | return 1; |
---|
223 | } |
---|
224 | |
---|
225 | } else { |
---|
226 | usage(); |
---|
227 | return 1; |
---|
228 | } |
---|
229 | |
---|
230 | } |
---|
231 | |
---|
232 | ROAR_DBG("Server config: rate=%i, bits=%i, chans=%i", sa.rate, sa.bits, sa.channels); |
---|
233 | |
---|
234 | if ( midi_init() == -1 ) |
---|
235 | ROAR_ERR("Can not initialize MIDI subsystem"); |
---|
236 | |
---|
237 | if ( *server != 0 ) { |
---|
238 | if ( (g_listen_socket = roar_socket_listen(ROAR_SOCKET_TYPE_UNKNOWN, server, port)) == -1 ) { |
---|
239 | if ( *server == '/' ) { |
---|
240 | if ( (i = roar_socket_connect(server, port)) != -1 ) { |
---|
241 | close(i); |
---|
242 | ROAR_ERR("Can not open listen socket!"); |
---|
243 | return 1; |
---|
244 | } else { |
---|
245 | unlink(server); |
---|
246 | if ( (g_listen_socket = roar_socket_listen(ROAR_SOCKET_TYPE_UNKNOWN, server, port)) == -1 ) { |
---|
247 | ROAR_ERR("Can not open listen socket!"); |
---|
248 | return 1; |
---|
249 | } |
---|
250 | } |
---|
251 | } else { |
---|
252 | ROAR_ERR("Can not open listen socket!"); |
---|
253 | return 1; |
---|
254 | } |
---|
255 | } |
---|
256 | |
---|
257 | if ( *server == '/' ) { |
---|
258 | if ( sock_user ) { |
---|
259 | if ( (pwd = getpwnam(sock_user)) == NULL ) { |
---|
260 | ROAR_ERR("Can not get UID for user %s: %s", sock_user, strerror(errno)); |
---|
261 | } |
---|
262 | } |
---|
263 | if ( (grp = getgrnam(sock_grp)) == NULL ) { |
---|
264 | ROAR_ERR("Can not get GID for group %s: %s", sock_grp, strerror(errno)); |
---|
265 | } else { |
---|
266 | if ( pwd ) { |
---|
267 | chown(server, pwd->pw_uid, grp->gr_gid); |
---|
268 | } else { |
---|
269 | chown(server, -1, grp->gr_gid); |
---|
270 | } |
---|
271 | if ( getuid() == 0 ) |
---|
272 | chmod(server, S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP); |
---|
273 | } |
---|
274 | } |
---|
275 | } |
---|
276 | |
---|
277 | if ( output_buffer_init(&sa) == -1 ) { |
---|
278 | ROAR_ERR("Can not init output buffer!"); |
---|
279 | return 1; |
---|
280 | } |
---|
281 | |
---|
282 | if ( driver_open(&drvinst, &drvid, driver, device, &sa) == -1 ) { |
---|
283 | ROAR_ERR("Can not open output driver!"); |
---|
284 | return 1; |
---|
285 | } |
---|
286 | |
---|
287 | if ( samples_init() == -1 ) { |
---|
288 | ROAR_ERR("Can not init samples!"); |
---|
289 | return 1; |
---|
290 | } |
---|
291 | |
---|
292 | |
---|
293 | signal(SIGINT, on_sig_int); |
---|
294 | signal(SIGCHLD, on_sig_chld); |
---|
295 | signal(SIGPIPE, SIG_IGN); // ignore broken pipes |
---|
296 | |
---|
297 | if ( realtime ) { |
---|
298 | #ifdef DEBUG |
---|
299 | ROAR_WARN("compiled with -DDEBUG but realtime is enabled: for real realtime support compiel without -DDEBUG"); |
---|
300 | #endif |
---|
301 | |
---|
302 | errno = 0; |
---|
303 | nice(-5*realtime); // -5 for each --realtime |
---|
304 | if ( errno ) |
---|
305 | ROAR_WARN("Can not decrease nice value by 5: %s", strerror(errno)); |
---|
306 | /* |
---|
307 | #ifdef __linux__ |
---|
308 | if ( ioprio_set(IOPRIO_WHO_PROCESS, getpid(), IOPRIO_PRIO_VALUE(IOPRIO_CLASS_BE, 0)) == -1 ) |
---|
309 | ROAR_WARN("Can not set io priority: %s", strerror(errno)); |
---|
310 | #endif |
---|
311 | */ |
---|
312 | } |
---|
313 | |
---|
314 | if ( setids & R_SETGID ) { |
---|
315 | if ( setgroups(0, (const gid_t *) NULL) == -1 ) { |
---|
316 | ROAR_ERR("Can not clear supplementary group IDs: %s", strerror(errno)); |
---|
317 | } |
---|
318 | if ( setgid(grp->gr_gid) == -1 ) { |
---|
319 | ROAR_ERR("Can not set GroupID: %s", strerror(errno)); |
---|
320 | } |
---|
321 | } |
---|
322 | |
---|
323 | |
---|
324 | clients_set_pid(g_self_client, getpid()); |
---|
325 | clients_set_uid(g_self_client, getuid()); |
---|
326 | clients_set_gid(g_self_client, getgid()); |
---|
327 | clients_get(g_self_client, &self); |
---|
328 | |
---|
329 | if ( self == NULL ) { |
---|
330 | ROAR_ERR("Can not get self client!"); |
---|
331 | return 1; |
---|
332 | } |
---|
333 | |
---|
334 | strcpy(self->name, "RoarAudio demon internal"); |
---|
335 | |
---|
336 | if ( demon ) { |
---|
337 | close(ROAR_STDIN ); |
---|
338 | close(ROAR_STDOUT); |
---|
339 | close(ROAR_STDERR); |
---|
340 | setsid(); |
---|
341 | if ( fork() ) |
---|
342 | _exit(0); |
---|
343 | } |
---|
344 | |
---|
345 | if (chrootdir) { |
---|
346 | if ( chroot(chrootdir) == -1 ) { |
---|
347 | ROAR_ERR("Can not chroot to %s: %s", chrootdir, strerror(errno)); |
---|
348 | return 2; |
---|
349 | } |
---|
350 | if ( chdir("/") == -1 ) { |
---|
351 | ROAR_ERR("Can not chdir to /: %s", strerror(errno)); |
---|
352 | return 2; |
---|
353 | } |
---|
354 | } |
---|
355 | |
---|
356 | if ( setids & R_SETUID ) { |
---|
357 | if ( !pwd || setuid(pwd->pw_uid) == -1 ) { |
---|
358 | ROAR_ERR("Can not set UserID: %s", strerror(errno)); |
---|
359 | return 3; |
---|
360 | } |
---|
361 | clients_set_uid(g_self_client, getuid()); |
---|
362 | } |
---|
363 | |
---|
364 | // start main loop... |
---|
365 | main_loop(drvid, drvinst, &sa); |
---|
366 | |
---|
367 | // clean up. |
---|
368 | clean_quit_prep(); |
---|
369 | driver_close(drvinst, drvid); |
---|
370 | output_buffer_free(); |
---|
371 | |
---|
372 | return 0; |
---|
373 | } |
---|
374 | |
---|
375 | void clean_quit_prep (void) { |
---|
376 | close(g_listen_socket); |
---|
377 | |
---|
378 | if ( *server == '/' ) |
---|
379 | unlink(server); |
---|
380 | |
---|
381 | |
---|
382 | sources_free(); |
---|
383 | streams_free(); |
---|
384 | clients_free(); |
---|
385 | midi_cb_stop(); // stop console beep |
---|
386 | midi_free(); |
---|
387 | } |
---|
388 | |
---|
389 | void clean_quit (void) { |
---|
390 | clean_quit_prep(); |
---|
391 | // driver_close(drvinst, drvid); |
---|
392 | // output_buffer_free(); |
---|
393 | exit(0); |
---|
394 | } |
---|
395 | |
---|
396 | //ll |
---|