source: mainline/uspace/lib/console/src/con_srv.c

Last change on this file was 5be5396, checked in by Jiri Svoboda <jiri@…>, 9 months ago

Remcons needs to properly clean up when terminating a user session
  • Property mode set to 100644
File size: 11.4 KB
RevLine 
[5d94b16c]1/*
[68a552f]2 * Copyright (c) 2021 Jiri Svoboda
[5d94b16c]3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * - Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * - Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * - The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
[a635535]29/** @addtogroup libconsole
[5d94b16c]30 * @{
31 */
32/**
33 * @file
34 * @brief Console protocol server stub
35 */
[68a552f]36#include <as.h>
[5d94b16c]37#include <errno.h>
[902f0906]38#include <io/cons_event.h>
[5d94b16c]39#include <ipc/console.h>
40#include <stdlib.h>
[8d2dd7f2]41#include <stddef.h>
[5d94b16c]42
43#include <io/con_srv.h>
44
[984a9ba]45static errno_t console_ev_encode(cons_event_t *event, ipc_call_t *icall)
[902f0906]46{
[fafb8e5]47 ipc_set_arg1(icall, event->type);
[902f0906]48
49 switch (event->type) {
50 case CEV_KEY:
[fafb8e5]51 ipc_set_arg2(icall, event->ev.key.type);
52 ipc_set_arg3(icall, event->ev.key.key);
53 ipc_set_arg4(icall, event->ev.key.mods);
54 ipc_set_arg5(icall, event->ev.key.c);
[899bdfd]55 return EOK;
[902f0906]56 case CEV_POS:
[fafb8e5]57 ipc_set_arg2(icall, (event->ev.pos.pos_id << 16) | (event->ev.pos.type & 0xffff));
58 ipc_set_arg3(icall, event->ev.pos.btn_num);
59 ipc_set_arg4(icall, event->ev.pos.hpos);
60 ipc_set_arg5(icall, event->ev.pos.vpos);
[899bdfd]61 return EOK;
62 case CEV_RESIZE:
63 ipc_set_arg2(icall, 0);
64 ipc_set_arg3(icall, 0);
65 ipc_set_arg4(icall, 0);
66 ipc_set_arg5(icall, 0);
67 return EOK;
[902f0906]68 }
69
[899bdfd]70 return EIO;
[902f0906]71}
72
[984a9ba]73static void con_read_srv(con_srv_t *srv, ipc_call_t *icall)
[5d94b16c]74{
75 void *buf;
76 size_t size;
[b7fd2a0]77 errno_t rc;
[5d94b16c]78
[984a9ba]79 ipc_call_t call;
80 if (!async_data_read_receive(&call, &size)) {
81 async_answer_0(icall, EINVAL);
[5d94b16c]82 return;
83 }
84
85 buf = malloc(size);
86 if (buf == NULL) {
[984a9ba]87 async_answer_0(&call, ENOMEM);
88 async_answer_0(icall, ENOMEM);
[5d94b16c]89 return;
90 }
91
92 if (srv->srvs->ops->read == NULL) {
[984a9ba]93 async_answer_0(&call, ENOTSUP);
94 async_answer_0(icall, ENOTSUP);
[ccfe9c3]95 free(buf);
[5d94b16c]96 return;
97 }
98
[c8211849]99 size_t nread;
100 rc = srv->srvs->ops->read(srv, buf, size, &nread);
101 if (rc != EOK) {
[984a9ba]102 async_answer_0(&call, rc);
103 async_answer_0(icall, rc);
[ccfe9c3]104 free(buf);
[5d94b16c]105 return;
106 }
107
[984a9ba]108 async_data_read_finalize(&call, buf, nread);
[5d94b16c]109 free(buf);
110
[984a9ba]111 async_answer_1(icall, EOK, nread);
[5d94b16c]112}
113
[984a9ba]114static void con_write_srv(con_srv_t *srv, ipc_call_t *icall)
[5d94b16c]115{
116 void *data;
117 size_t size;
[b7fd2a0]118 errno_t rc;
[5d94b16c]119
120 rc = async_data_write_accept(&data, false, 0, 0, 0, &size);
121 if (rc != EOK) {
[984a9ba]122 async_answer_0(icall, rc);
[5d94b16c]123 return;
124 }
125
126 if (srv->srvs->ops->write == NULL) {
[984a9ba]127 async_answer_0(icall, ENOTSUP);
[5d94b16c]128 return;
129 }
130
[c8211849]131 size_t nwritten = 0;
132 rc = srv->srvs->ops->write(srv, data, size, &nwritten);
[5d94b16c]133 free(data);
134
[984a9ba]135 async_answer_1(icall, rc, nwritten);
[5d94b16c]136}
137
[984a9ba]138static void con_sync_srv(con_srv_t *srv, ipc_call_t *icall)
[5d94b16c]139{
140 if (srv->srvs->ops->sync == NULL) {
[984a9ba]141 async_answer_0(icall, ENOTSUP);
[5d94b16c]142 return;
143 }
144
145 srv->srvs->ops->sync(srv);
[984a9ba]146 async_answer_0(icall, EOK);
[5d94b16c]147}
148
[984a9ba]149static void con_clear_srv(con_srv_t *srv, ipc_call_t *icall)
[5d94b16c]150{
151 if (srv->srvs->ops->clear == NULL) {
[984a9ba]152 async_answer_0(icall, ENOTSUP);
[5d94b16c]153 return;
154 }
155
156 srv->srvs->ops->clear(srv);
[984a9ba]157 async_answer_0(icall, EOK);
[5d94b16c]158}
159
[984a9ba]160static void con_set_pos_srv(con_srv_t *srv, ipc_call_t *icall)
[5d94b16c]161{
162 sysarg_t col;
163 sysarg_t row;
164
[fafb8e5]165 col = ipc_get_arg1(icall);
166 row = ipc_get_arg2(icall);
[5d94b16c]167
168 if (srv->srvs->ops->set_pos == NULL) {
[984a9ba]169 async_answer_0(icall, ENOTSUP);
[5d94b16c]170 return;
171 }
172
173 srv->srvs->ops->set_pos(srv, col, row);
[984a9ba]174 async_answer_0(icall, EOK);
[5d94b16c]175}
176
[984a9ba]177static void con_get_pos_srv(con_srv_t *srv, ipc_call_t *icall)
[5d94b16c]178{
[b7fd2a0]179 errno_t rc;
[5d94b16c]180 sysarg_t col;
181 sysarg_t row;
182
183 if (srv->srvs->ops->get_pos == NULL) {
[984a9ba]184 async_answer_0(icall, ENOTSUP);
[5d94b16c]185 return;
186 }
187
188 rc = srv->srvs->ops->get_pos(srv, &col, &row);
[984a9ba]189 async_answer_2(icall, rc, col, row);
[5d94b16c]190}
191
[984a9ba]192static void con_get_size_srv(con_srv_t *srv, ipc_call_t *icall)
[5d94b16c]193{
[b7fd2a0]194 errno_t rc;
[5d94b16c]195 sysarg_t cols;
196 sysarg_t rows;
197
198 if (srv->srvs->ops->get_size == NULL) {
[984a9ba]199 async_answer_0(icall, ENOTSUP);
[5d94b16c]200 return;
201 }
202
203 rc = srv->srvs->ops->get_size(srv, &cols, &rows);
[984a9ba]204 async_answer_2(icall, rc, cols, rows);
[5d94b16c]205}
206
[984a9ba]207static void con_get_color_cap_srv(con_srv_t *srv, ipc_call_t *icall)
[5d94b16c]208{
[b7fd2a0]209 errno_t rc;
[5d94b16c]210 console_caps_t ccap;
211
212 if (srv->srvs->ops->get_color_cap == NULL) {
[984a9ba]213 async_answer_0(icall, ENOTSUP);
[5d94b16c]214 return;
215 }
216
217 rc = srv->srvs->ops->get_color_cap(srv, &ccap);
[984a9ba]218 async_answer_1(icall, rc, (sysarg_t)ccap);
[5d94b16c]219}
220
[984a9ba]221static void con_set_style_srv(con_srv_t *srv, ipc_call_t *icall)
[5d94b16c]222{
223 console_style_t style;
224
[fafb8e5]225 style = ipc_get_arg1(icall);
[5d94b16c]226
227 if (srv->srvs->ops->set_style == NULL) {
[984a9ba]228 async_answer_0(icall, ENOTSUP);
[5d94b16c]229 return;
230 }
231
232 srv->srvs->ops->set_style(srv, style);
[984a9ba]233 async_answer_0(icall, EOK);
[5d94b16c]234}
235
[984a9ba]236static void con_set_color_srv(con_srv_t *srv, ipc_call_t *icall)
[5d94b16c]237{
238 console_color_t bgcolor;
239 console_color_t fgcolor;
240 console_color_attr_t flags;
241
[fafb8e5]242 bgcolor = ipc_get_arg1(icall);
243 fgcolor = ipc_get_arg2(icall);
244 flags = ipc_get_arg3(icall);
[5d94b16c]245
246 if (srv->srvs->ops->set_color == NULL) {
[984a9ba]247 async_answer_0(icall, ENOTSUP);
[5d94b16c]248 return;
249 }
250
251 srv->srvs->ops->set_color(srv, bgcolor, fgcolor, flags);
[984a9ba]252 async_answer_0(icall, EOK);
[5d94b16c]253}
254
[984a9ba]255static void con_set_rgb_color_srv(con_srv_t *srv, ipc_call_t *icall)
[5d94b16c]256{
257 pixel_t bgcolor;
258 pixel_t fgcolor;
259
[fafb8e5]260 bgcolor = ipc_get_arg1(icall);
261 fgcolor = ipc_get_arg2(icall);
[5d94b16c]262
263 if (srv->srvs->ops->set_rgb_color == NULL) {
[984a9ba]264 async_answer_0(icall, ENOTSUP);
[5d94b16c]265 return;
266 }
267
268 srv->srvs->ops->set_rgb_color(srv, bgcolor, fgcolor);
[984a9ba]269 async_answer_0(icall, EOK);
[5d94b16c]270}
271
[984a9ba]272static void con_set_cursor_visibility_srv(con_srv_t *srv, ipc_call_t *icall)
[5d94b16c]273{
274 bool show;
275
[fafb8e5]276 show = ipc_get_arg1(icall);
[5d94b16c]277
278 if (srv->srvs->ops->set_cursor_visibility == NULL) {
[984a9ba]279 async_answer_0(icall, ENOTSUP);
[5d94b16c]280 return;
281 }
282
283 srv->srvs->ops->set_cursor_visibility(srv, show);
[984a9ba]284 async_answer_0(icall, EOK);
[5d94b16c]285}
286
[b48e680f]287static void con_set_caption_srv(con_srv_t *srv, ipc_call_t *icall)
288{
289 char *caption;
290 errno_t rc;
291
292 rc = async_data_write_accept((void **) &caption, true, 0,
293 CON_CAPTION_MAXLEN, 0, NULL);
294 if (rc != EOK) {
295 async_answer_0(icall, rc);
296 return;
297 }
298
299 if (srv->srvs->ops->set_caption == NULL) {
300 async_answer_0(icall, ENOTSUP);
301 return;
302 }
303
304 srv->srvs->ops->set_caption(srv, caption);
305 free(caption);
306 async_answer_0(icall, EOK);
307}
308
[984a9ba]309static void con_get_event_srv(con_srv_t *srv, ipc_call_t *icall)
[5d94b16c]310{
[b7fd2a0]311 errno_t rc;
[902f0906]312 cons_event_t event;
313 ipc_call_t result;
[5d94b16c]314
315 if (srv->srvs->ops->get_event == NULL) {
[984a9ba]316 async_answer_0(icall, ENOTSUP);
[5d94b16c]317 return;
318 }
319
320 rc = srv->srvs->ops->get_event(srv, &event);
[902f0906]321 if (rc != EOK) {
[984a9ba]322 async_answer_0(icall, rc);
[902f0906]323 return;
324 }
325
326 rc = console_ev_encode(&event, &result);
327 if (rc != EOK) {
[984a9ba]328 async_answer_0(icall, rc);
[902f0906]329 return;
330 }
331
[fafb8e5]332 async_answer_5(icall, rc, ipc_get_arg1(&result), ipc_get_arg2(&result),
333 ipc_get_arg3(&result), ipc_get_arg4(&result), ipc_get_arg5(&result));
[5d94b16c]334}
335
[68a552f]336/** Create shared buffer for efficient rendering */
337static void con_map_srv(con_srv_t *srv, ipc_call_t *icall)
338{
339 errno_t rc;
340 charfield_t *buf;
341 sysarg_t cols, rows;
342 ipc_call_t call;
343 size_t size;
344
345 if (srv->srvs->ops->map == NULL || srv->srvs->ops->unmap == NULL) {
346 async_answer_0(icall, ENOTSUP);
347 return;
348 }
349
350 cols = ipc_get_arg1(icall);
351 rows = ipc_get_arg2(icall);
352
353 if (!async_share_in_receive(&call, &size)) {
354 async_answer_0(icall, EINVAL);
355 return;
356 }
357
358 /* Check size */
359 if (size != PAGES2SIZE(SIZE2PAGES(cols * rows * sizeof(charfield_t)))) {
360 async_answer_0(&call, EINVAL);
361 async_answer_0(icall, EINVAL);
362 return;
363 }
364
365 rc = srv->srvs->ops->map(srv, cols, rows, &buf);
366 if (rc != EOK) {
367 async_answer_0(&call, rc);
368 async_answer_0(icall, rc);
369 return;
370 }
371
372 rc = async_share_in_finalize(&call, buf, AS_AREA_READ |
373 AS_AREA_WRITE | AS_AREA_CACHEABLE);
374 if (rc != EOK) {
375 srv->srvs->ops->unmap(srv);
376 async_answer_0(icall, EIO);
377 return;
378 }
379
380 async_answer_0(icall, EOK);
381}
382
383/** Delete shared buffer */
384static void con_unmap_srv(con_srv_t *srv, ipc_call_t *icall)
385{
386 if (srv->srvs->ops->unmap == NULL) {
387 async_answer_0(icall, ENOTSUP);
388 return;
389 }
390
391 srv->srvs->ops->unmap(srv);
392 async_answer_0(icall, EOK);
393}
394
395/** Update console area from shared buffer */
396static void con_update_srv(con_srv_t *srv, ipc_call_t *icall)
397{
398 sysarg_t c0, r0, c1, r1;
399
400 c0 = ipc_get_arg1(icall);
401 r0 = ipc_get_arg2(icall);
402 c1 = ipc_get_arg3(icall);
403 r1 = ipc_get_arg4(icall);
404
405 if (srv->srvs->ops->update == NULL) {
406 async_answer_0(icall, ENOTSUP);
407 return;
408 }
409
410 srv->srvs->ops->update(srv, c0, r0, c1, r1);
411 async_answer_0(icall, EOK);
412}
413
[5d94b16c]414static con_srv_t *con_srv_create(con_srvs_t *srvs)
415{
416 con_srv_t *srv;
417
418 srv = calloc(1, sizeof(*srv));
419 if (srv == NULL)
420 return NULL;
421
422 srv->srvs = srvs;
423 return srv;
424}
425
426void con_srvs_init(con_srvs_t *srvs)
427{
428 srvs->ops = NULL;
429 srvs->sarg = NULL;
430 srvs->abort_timeout = 0;
431 srvs->aborted = false;
432}
433
[984a9ba]434errno_t con_conn(ipc_call_t *icall, con_srvs_t *srvs)
[5d94b16c]435{
436 con_srv_t *srv;
[b7fd2a0]437 errno_t rc;
[5d94b16c]438
439 /* Accept the connection */
[beb83c1]440 async_accept_0(icall);
[5d94b16c]441
442 srv = con_srv_create(srvs);
443 if (srv == NULL)
444 return ENOMEM;
445
446 srv->client_sess = NULL;
447
448 rc = srvs->ops->open(srvs, srv);
449 if (rc != EOK)
450 return rc;
451
452 while (true) {
453 ipc_call_t call;
[984a9ba]454 bool received = false;
[5d94b16c]455
[984a9ba]456 while (!received) {
[5d94b16c]457 /* XXX Need to be able to abort immediately */
[984a9ba]458 received = async_get_call_timeout(&call,
[5d94b16c]459 srvs->abort_timeout);
460
461 if (srv->srvs->aborted) {
[984a9ba]462 if (received)
463 async_answer_0(&call, EINTR);
[5d94b16c]464 break;
465 }
466 }
467
[5be5396]468 if (!received || srv->srvs->aborted)
[5d94b16c]469 break;
470
[fafb8e5]471 sysarg_t method = ipc_get_imethod(&call);
[5d94b16c]472
473 if (!method) {
474 /* The other side has hung up */
[984a9ba]475 async_answer_0(&call, EOK);
[5d94b16c]476 break;
477 }
478
479 switch (method) {
480 case VFS_OUT_READ:
[984a9ba]481 con_read_srv(srv, &call);
[5d94b16c]482 break;
483 case VFS_OUT_WRITE:
[984a9ba]484 con_write_srv(srv, &call);
[5d94b16c]485 break;
486 case VFS_OUT_SYNC:
[984a9ba]487 con_sync_srv(srv, &call);
[5d94b16c]488 break;
489 case CONSOLE_CLEAR:
[984a9ba]490 con_clear_srv(srv, &call);
[5d94b16c]491 break;
492 case CONSOLE_SET_POS:
[984a9ba]493 con_set_pos_srv(srv, &call);
[5d94b16c]494 break;
495 case CONSOLE_GET_POS:
[984a9ba]496 con_get_pos_srv(srv, &call);
[5d94b16c]497 break;
498 case CONSOLE_GET_SIZE:
[984a9ba]499 con_get_size_srv(srv, &call);
[5d94b16c]500 break;
501 case CONSOLE_GET_COLOR_CAP:
[984a9ba]502 con_get_color_cap_srv(srv, &call);
[5d94b16c]503 break;
504 case CONSOLE_SET_STYLE:
[984a9ba]505 con_set_style_srv(srv, &call);
[5d94b16c]506 break;
507 case CONSOLE_SET_COLOR:
[984a9ba]508 con_set_color_srv(srv, &call);
[5d94b16c]509 break;
510 case CONSOLE_SET_RGB_COLOR:
[984a9ba]511 con_set_rgb_color_srv(srv, &call);
[5d94b16c]512 break;
513 case CONSOLE_SET_CURSOR_VISIBILITY:
[984a9ba]514 con_set_cursor_visibility_srv(srv, &call);
[5d94b16c]515 break;
[b48e680f]516 case CONSOLE_SET_CAPTION:
517 con_set_caption_srv(srv, &call);
518 break;
[5d94b16c]519 case CONSOLE_GET_EVENT:
[984a9ba]520 con_get_event_srv(srv, &call);
[5d94b16c]521 break;
[68a552f]522 case CONSOLE_MAP:
523 con_map_srv(srv, &call);
524 break;
525 case CONSOLE_UNMAP:
526 con_unmap_srv(srv, &call);
527 break;
528 case CONSOLE_UPDATE:
529 con_update_srv(srv, &call);
530 break;
[5d94b16c]531 default:
[984a9ba]532 async_answer_0(&call, ENOTSUP);
[5d94b16c]533 }
534 }
535
536 rc = srvs->ops->close(srv);
537 free(srv);
538
539 return rc;
540}
541
542/** @}
543 */
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