Commit | Line | Data |
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a09e091a JB |
1 | /* |
2 | * Copyright 1995-1998 by Metro Link, Inc. | |
3 | * | |
4 | * Permission to use, copy, modify, distribute, and sell this software and its | |
5 | * documentation for any purpose is hereby granted without fee, provided that | |
6 | * the above copyright notice appear in all copies and that both that | |
7 | * copyright notice and this permission notice appear in supporting | |
8 | * documentation, and that the name of Metro Link, Inc. not be used in | |
9 | * advertising or publicity pertaining to distribution of the software without | |
10 | * specific, written prior permission. Metro Link, Inc. makes no | |
11 | * representations about the suitability of this software for any purpose. | |
12 | * It is provided "as is" without express or implied warranty. | |
13 | * | |
14 | * METRO LINK, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, | |
15 | * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO | |
16 | * EVENT SHALL METRO LINK, INC. BE LIABLE FOR ANY SPECIAL, INDIRECT OR | |
17 | * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, | |
18 | * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER | |
19 | * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR | |
20 | * PERFORMANCE OF THIS SOFTWARE. | |
21 | */ | |
22 | /* | |
23 | * Copyright (c) 1997-2002 by The XFree86 Project, Inc. | |
24 | * | |
25 | * Permission is hereby granted, free of charge, to any person obtaining a | |
26 | * copy of this software and associated documentation files (the "Software"), | |
27 | * to deal in the Software without restriction, including without limitation | |
28 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, | |
29 | * and/or sell copies of the Software, and to permit persons to whom the | |
30 | * Software is furnished to do so, subject to the following conditions: | |
31 | * | |
32 | * The above copyright notice and this permission notice shall be included in | |
33 | * all copies or substantial portions of the Software. | |
34 | * | |
35 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
36 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
37 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
38 | * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR | |
39 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, | |
40 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR | |
41 | * OTHER DEALINGS IN THE SOFTWARE. | |
42 | * | |
43 | * Except as contained in this notice, the name of the copyright holder(s) | |
44 | * and author(s) shall not be used in advertising or otherwise to promote | |
45 | * the sale, use or other dealings in this Software without prior written | |
46 | * authorization from the copyright holder(s) and author(s). | |
47 | */ | |
48 | ||
49 | #ifdef HAVE_XORG_CONFIG_H | |
50 | #include <xorg-config.h> | |
51 | #endif | |
52 | ||
53 | #include "os.h" | |
54 | /* For stat() and related stuff */ | |
55 | #define NO_OSLIB_PROTOTYPES | |
56 | #include "xf86_OSlib.h" | |
57 | #define LOADERDECLARATIONS | |
58 | #include "loaderProcs.h" | |
59 | #include "misc.h" | |
60 | #include "xf86.h" | |
61 | #include "xf86Priv.h" | |
62 | #include "xf86Xinput.h" | |
63 | #include "loader.h" | |
64 | #include "xf86Optrec.h" | |
65 | ||
66 | #include <sys/types.h> | |
67 | #include <regex.h> | |
68 | #include <dirent.h> | |
69 | #include <limits.h> | |
70 | ||
71 | typedef struct _pattern { | |
72 | const char *pattern; | |
73 | regex_t rex; | |
74 | } PatternRec, *PatternPtr; | |
75 | ||
76 | /* Prototypes for static functions */ | |
77 | static char *FindModule(const char *, const char *, const char **, PatternPtr); | |
78 | static Bool CheckVersion(const char *, XF86ModuleVersionInfo *, | |
79 | const XF86ModReqInfo *); | |
80 | static void UnloadModuleOrDriver(ModuleDescPtr mod); | |
81 | static char *LoaderGetCanonicalName(const char *, PatternPtr); | |
82 | static void RemoveChild(ModuleDescPtr); | |
83 | static ModuleDescPtr doLoadModule(const char *, const char *, const char **, | |
84 | const char **, pointer, | |
85 | const XF86ModReqInfo *, int *, int *); | |
86 | ||
87 | const ModuleVersions LoaderVersionInfo = { | |
88 | XORG_VERSION_CURRENT, | |
89 | ABI_ANSIC_VERSION, | |
90 | ABI_VIDEODRV_VERSION, | |
91 | ABI_XINPUT_VERSION, | |
92 | ABI_EXTENSION_VERSION, | |
93 | ABI_FONT_VERSION | |
94 | }; | |
95 | ||
96 | static int ModuleDuplicated[] = { }; | |
97 | ||
98 | static void | |
99 | FreeStringList(char **paths) | |
100 | { | |
101 | char **p; | |
102 | ||
103 | if (!paths) | |
104 | return; | |
105 | ||
106 | for (p = paths; *p; p++) | |
107 | free(*p); | |
108 | ||
109 | free(paths); | |
110 | } | |
111 | ||
112 | static char **defaultPathList = NULL; | |
113 | ||
114 | static Bool | |
115 | PathIsAbsolute(const char *path) | |
116 | { | |
117 | return *path == '/'; | |
118 | } | |
119 | ||
120 | /* | |
121 | * Convert a comma-separated path into a NULL-terminated array of path | |
122 | * elements, rejecting any that are not full absolute paths, and appending | |
123 | * a '/' when it isn't already present. | |
124 | */ | |
125 | static char ** | |
126 | InitPathList(const char *path) | |
127 | { | |
128 | char *fullpath = NULL; | |
129 | char *elem = NULL; | |
130 | char **list = NULL, **save = NULL; | |
131 | int len; | |
132 | int addslash; | |
133 | int n = 0; | |
134 | ||
135 | if (!path) | |
136 | return defaultPathList; | |
137 | ||
138 | fullpath = strdup(path); | |
139 | if (!fullpath) | |
140 | return NULL; | |
141 | elem = strtok(fullpath, ","); | |
142 | while (elem) { | |
143 | if (PathIsAbsolute(elem)) { | |
144 | len = strlen(elem); | |
145 | addslash = (elem[len - 1] != '/'); | |
146 | if (addslash) | |
147 | len++; | |
148 | save = list; | |
149 | list = realloc(list, (n + 2) * sizeof(char *)); | |
150 | if (!list) { | |
151 | if (save) { | |
152 | save[n] = NULL; | |
153 | FreeStringList(save); | |
154 | } | |
155 | free(fullpath); | |
156 | return NULL; | |
157 | } | |
158 | list[n] = malloc(len + 1); | |
159 | if (!list[n]) { | |
160 | FreeStringList(list); | |
161 | free(fullpath); | |
162 | return NULL; | |
163 | } | |
164 | strcpy(list[n], elem); | |
165 | if (addslash) { | |
166 | list[n][len - 1] = '/'; | |
167 | list[n][len] = '\0'; | |
168 | } | |
169 | n++; | |
170 | } | |
171 | elem = strtok(NULL, ","); | |
172 | } | |
173 | if (list) | |
174 | list[n] = NULL; | |
175 | free(fullpath); | |
176 | return list; | |
177 | } | |
178 | ||
179 | static void | |
180 | FreePathList(char **pathlist) | |
181 | { | |
182 | if (pathlist && pathlist != defaultPathList) | |
183 | FreeStringList(pathlist); | |
184 | } | |
185 | ||
186 | void | |
187 | LoaderSetPath(const char *path) | |
188 | { | |
189 | if (!path) | |
190 | return; | |
191 | ||
192 | defaultPathList = InitPathList(path); | |
193 | } | |
194 | ||
195 | /* Standard set of module subdirectories to search, in order of preference */ | |
196 | static const char *stdSubdirs[] = { | |
197 | "", | |
198 | "input/", | |
199 | "drivers/", | |
200 | "multimedia/", | |
201 | "extensions/", | |
202 | "internal/", | |
203 | NULL | |
204 | }; | |
205 | ||
206 | /* | |
207 | * Standard set of module name patterns to check, in order of preference | |
208 | * These are regular expressions (suitable for use with POSIX regex(3)). | |
209 | * | |
210 | * This list assumes that you're an ELFish platform and therefore your | |
211 | * shared libraries are named something.so. If we're ever nuts enough | |
212 | * to port this DDX to, say, Darwin, we'll need to fix this. | |
213 | */ | |
214 | static PatternRec stdPatterns[] = { | |
215 | #ifdef __CYGWIN__ | |
216 | {"^cyg(.*)\\.dll$",}, | |
217 | {"(.*)_drv\\.dll$",}, | |
218 | {"(.*)\\.dll$",}, | |
219 | #else | |
220 | {"^lib(.*)\\.so$",}, | |
221 | {"(.*)_drv\\.so$",}, | |
222 | {"(.*)\\.so$",}, | |
223 | #endif | |
224 | {NULL,} | |
225 | }; | |
226 | ||
227 | static PatternPtr | |
228 | InitPatterns(const char **patternlist) | |
229 | { | |
230 | char errmsg[80]; | |
231 | int i, e; | |
232 | PatternPtr patterns = NULL; | |
233 | PatternPtr p = NULL; | |
234 | static int firstTime = 1; | |
235 | const char **s; | |
236 | ||
237 | if (firstTime) { | |
238 | /* precompile stdPatterns */ | |
239 | firstTime = 0; | |
240 | for (p = stdPatterns; p->pattern; p++) | |
241 | if ((e = regcomp(&p->rex, p->pattern, REG_EXTENDED)) != 0) { | |
242 | regerror(e, &p->rex, errmsg, sizeof(errmsg)); | |
243 | FatalError("InitPatterns: regcomp error for `%s': %s\n", | |
244 | p->pattern, errmsg); | |
245 | } | |
246 | } | |
247 | ||
248 | if (patternlist) { | |
249 | for (i = 0, s = patternlist; *s; i++, s++) | |
250 | if (*s == DEFAULT_LIST) | |
251 | i += sizeof(stdPatterns) / sizeof(stdPatterns[0]) - 1 - 1; | |
252 | patterns = malloc((i + 1) * sizeof(PatternRec)); | |
253 | if (!patterns) { | |
254 | return NULL; | |
255 | } | |
256 | for (i = 0, s = patternlist; *s; i++, s++) | |
257 | if (*s != DEFAULT_LIST) { | |
258 | p = patterns + i; | |
259 | p->pattern = *s; | |
260 | if ((e = regcomp(&p->rex, p->pattern, REG_EXTENDED)) != 0) { | |
261 | regerror(e, &p->rex, errmsg, sizeof(errmsg)); | |
262 | ErrorF("InitPatterns: regcomp error for `%s': %s\n", | |
263 | p->pattern, errmsg); | |
264 | i--; | |
265 | } | |
266 | } | |
267 | else { | |
268 | for (p = stdPatterns; p->pattern; p++, i++) | |
269 | patterns[i] = *p; | |
270 | if (p != stdPatterns) | |
271 | i--; | |
272 | } | |
273 | patterns[i].pattern = NULL; | |
274 | } | |
275 | else | |
276 | patterns = stdPatterns; | |
277 | return patterns; | |
278 | } | |
279 | ||
280 | static void | |
281 | FreePatterns(PatternPtr patterns) | |
282 | { | |
283 | if (patterns && patterns != stdPatterns) | |
284 | free(patterns); | |
285 | } | |
286 | ||
287 | static const char ** | |
288 | InitSubdirs(const char **subdirlist) | |
289 | { | |
290 | int i; | |
291 | const char **tmp_subdirlist = NULL; | |
292 | char **subdirs = NULL; | |
293 | const char **s, **stmp = NULL; | |
294 | const char *osname; | |
295 | const char *slash; | |
296 | int oslen = 0, len; | |
297 | Bool indefault; | |
298 | ||
299 | if (subdirlist == NULL) { | |
300 | subdirlist = tmp_subdirlist = malloc(2 * sizeof(char *)); | |
301 | if (subdirlist == NULL) | |
302 | return NULL; | |
303 | subdirlist[0] = DEFAULT_LIST; | |
304 | subdirlist[1] = NULL; | |
305 | } | |
306 | ||
307 | LoaderGetOS(&osname, NULL, NULL, NULL); | |
308 | oslen = strlen(osname); | |
309 | ||
310 | { | |
311 | /* Count number of entries and check for invalid paths */ | |
312 | for (i = 0, s = subdirlist; *s; i++, s++) { | |
313 | if (*s == DEFAULT_LIST) { | |
314 | i += sizeof(stdSubdirs) / sizeof(stdSubdirs[0]) - 1 - 1; | |
315 | } | |
316 | else { | |
317 | /* | |
318 | * Path validity check. Don't allow absolute paths, or | |
319 | * paths containing "..". To catch absolute paths on | |
320 | * platforms that use driver letters, don't allow the ':' | |
321 | * character to appear at all. | |
322 | */ | |
323 | if (**s == '/' || **s == '\\' || strchr(*s, ':') || | |
324 | strstr(*s, "..")) { | |
325 | xf86Msg(X_ERROR, "InitSubdirs: Bad subdir: \"%s\"\n", *s); | |
326 | free(tmp_subdirlist); | |
327 | return NULL; | |
328 | } | |
329 | } | |
330 | } | |
331 | subdirs = malloc((i * 2 + 1) * sizeof(char *)); | |
332 | if (!subdirs) { | |
333 | free(tmp_subdirlist); | |
334 | return NULL; | |
335 | } | |
336 | i = 0; | |
337 | s = subdirlist; | |
338 | indefault = FALSE; | |
339 | while (*s) { | |
340 | if (*s == DEFAULT_LIST) { | |
341 | /* Divert to the default list */ | |
342 | indefault = TRUE; | |
343 | stmp = ++s; | |
344 | s = stdSubdirs; | |
345 | } | |
346 | len = strlen(*s); | |
347 | if (**s && (*s)[len - 1] != '/') { | |
348 | slash = "/"; | |
349 | len++; | |
350 | } | |
351 | else | |
352 | slash = ""; | |
353 | len += oslen + 2; | |
354 | if (!(subdirs[i] = malloc(len))) { | |
355 | while (--i >= 0) | |
356 | free(subdirs[i]); | |
357 | free(subdirs); | |
358 | free(tmp_subdirlist); | |
359 | return NULL; | |
360 | } | |
361 | /* tack on the OS name */ | |
362 | sprintf(subdirs[i], "%s%s%s/", *s, slash, osname); | |
363 | i++; | |
364 | /* path as given */ | |
365 | subdirs[i] = strdup(*s); | |
366 | i++; | |
367 | s++; | |
368 | if (indefault && !s) { | |
369 | /* revert back to the main list */ | |
370 | indefault = FALSE; | |
371 | s = stmp; | |
372 | } | |
373 | } | |
374 | subdirs[i] = NULL; | |
375 | } | |
376 | free(tmp_subdirlist); | |
377 | return (const char **) subdirs; | |
378 | } | |
379 | ||
380 | static void | |
381 | FreeSubdirs(const char **subdirs) | |
382 | { | |
383 | const char **s; | |
384 | ||
385 | if (subdirs) { | |
386 | for (s = subdirs; *s; s++) | |
387 | free((char *) *s); | |
388 | free(subdirs); | |
389 | } | |
390 | } | |
391 | ||
392 | static char * | |
393 | FindModuleInSubdir(const char *dirpath, const char *module) | |
394 | { | |
395 | struct dirent *direntry = NULL; | |
396 | DIR *dir = NULL; | |
397 | char *ret = NULL, tmpBuf[PATH_MAX]; | |
398 | struct stat stat_buf; | |
399 | ||
400 | dir = opendir(dirpath); | |
401 | if (!dir) | |
402 | return NULL; | |
403 | ||
404 | while ((direntry = readdir(dir))) { | |
405 | if (direntry->d_name[0] == '.') | |
406 | continue; | |
407 | snprintf(tmpBuf, PATH_MAX, "%s%s/", dirpath, direntry->d_name); | |
408 | /* the stat with the appended / fails for normal files, | |
409 | and works for sub dirs fine, looks a bit strange in strace | |
410 | but does seem to work */ | |
411 | if ((stat(tmpBuf, &stat_buf) == 0) && S_ISDIR(stat_buf.st_mode)) { | |
412 | if ((ret = FindModuleInSubdir(tmpBuf, module))) | |
413 | break; | |
414 | continue; | |
415 | } | |
416 | ||
417 | #ifdef __CYGWIN__ | |
418 | snprintf(tmpBuf, PATH_MAX, "cyg%s.dll", module); | |
419 | #else | |
420 | snprintf(tmpBuf, PATH_MAX, "lib%s.so", module); | |
421 | #endif | |
422 | if (strcmp(direntry->d_name, tmpBuf) == 0) { | |
423 | if (asprintf(&ret, "%s%s", dirpath, tmpBuf) == -1) | |
424 | ret = NULL; | |
425 | break; | |
426 | } | |
427 | ||
428 | #ifdef __CYGWIN__ | |
429 | snprintf(tmpBuf, PATH_MAX, "%s_drv.dll", module); | |
430 | #else | |
431 | snprintf(tmpBuf, PATH_MAX, "%s_drv.so", module); | |
432 | #endif | |
433 | if (strcmp(direntry->d_name, tmpBuf) == 0) { | |
434 | if (asprintf(&ret, "%s%s", dirpath, tmpBuf) == -1) | |
435 | ret = NULL; | |
436 | break; | |
437 | } | |
438 | ||
439 | #ifdef __CYGWIN__ | |
440 | snprintf(tmpBuf, PATH_MAX, "%s.dll", module); | |
441 | #else | |
442 | snprintf(tmpBuf, PATH_MAX, "%s.so", module); | |
443 | #endif | |
444 | if (strcmp(direntry->d_name, tmpBuf) == 0) { | |
445 | if (asprintf(&ret, "%s%s", dirpath, tmpBuf) == -1) | |
446 | ret = NULL; | |
447 | break; | |
448 | } | |
449 | } | |
450 | ||
451 | closedir(dir); | |
452 | return ret; | |
453 | } | |
454 | ||
455 | static char * | |
456 | FindModule(const char *module, const char *dirname, const char **subdirlist, | |
457 | PatternPtr patterns) | |
458 | { | |
459 | char buf[PATH_MAX + 1]; | |
460 | char *name = NULL; | |
461 | const char **subdirs = NULL; | |
462 | const char **s; | |
463 | ||
464 | if (strlen(dirname) > PATH_MAX) | |
465 | return NULL; | |
466 | ||
467 | subdirs = InitSubdirs(subdirlist); | |
468 | if (!subdirs) | |
469 | return NULL; | |
470 | ||
471 | for (s = subdirs; *s; s++) { | |
472 | if ((strlen(dirname) + strlen(*s)) > PATH_MAX) | |
473 | continue; | |
474 | strcpy(buf, dirname); | |
475 | strcat(buf, *s); | |
476 | if ((name = FindModuleInSubdir(buf, module))) | |
477 | break; | |
478 | } | |
479 | ||
480 | FreeSubdirs(subdirs); | |
481 | ||
482 | return name; | |
483 | } | |
484 | ||
485 | char ** | |
486 | LoaderListDirs(const char **subdirlist, const char **patternlist) | |
487 | { | |
488 | char buf[PATH_MAX + 1]; | |
489 | char **pathlist; | |
490 | char **elem; | |
491 | const char **subdirs; | |
492 | const char **s; | |
493 | PatternPtr patterns; | |
494 | PatternPtr p; | |
495 | DIR *d; | |
496 | struct dirent *dp; | |
497 | regmatch_t match[2]; | |
498 | struct stat stat_buf; | |
499 | int len, dirlen; | |
500 | char *fp; | |
501 | char **listing = NULL; | |
502 | char **save; | |
503 | char **ret = NULL; | |
504 | int n = 0; | |
505 | ||
506 | if (!(pathlist = InitPathList(NULL))) | |
507 | return NULL; | |
508 | if (!(subdirs = InitSubdirs(subdirlist))) | |
509 | goto bail; | |
510 | if (!(patterns = InitPatterns(patternlist))) | |
511 | goto bail; | |
512 | ||
513 | for (elem = pathlist; *elem; elem++) { | |
514 | for (s = subdirs; *s; s++) { | |
515 | if ((dirlen = strlen(*elem) + strlen(*s)) > PATH_MAX) | |
516 | continue; | |
517 | strcpy(buf, *elem); | |
518 | strcat(buf, *s); | |
519 | fp = buf + dirlen; | |
520 | if (stat(buf, &stat_buf) == 0 && S_ISDIR(stat_buf.st_mode) && | |
521 | (d = opendir(buf))) { | |
522 | if (buf[dirlen - 1] != '/') { | |
523 | buf[dirlen++] = '/'; | |
524 | fp++; | |
525 | } | |
526 | while ((dp = readdir(d))) { | |
527 | if (dirlen + strlen(dp->d_name) > PATH_MAX) | |
528 | continue; | |
529 | strcpy(fp, dp->d_name); | |
530 | if (!(stat(buf, &stat_buf) == 0 && | |
531 | S_ISREG(stat_buf.st_mode))) | |
532 | continue; | |
533 | for (p = patterns; p->pattern; p++) { | |
534 | if (regexec(&p->rex, dp->d_name, 2, match, 0) == 0 && | |
535 | match[1].rm_so != -1) { | |
536 | len = match[1].rm_eo - match[1].rm_so; | |
537 | save = listing; | |
538 | listing = realloc(listing, | |
539 | (n + 2) * sizeof(char *)); | |
540 | if (!listing) { | |
541 | if (save) { | |
542 | save[n] = NULL; | |
543 | FreeStringList(save); | |
544 | } | |
545 | closedir(d); | |
546 | goto bail; | |
547 | } | |
548 | listing[n] = malloc(len + 1); | |
549 | if (!listing[n]) { | |
550 | FreeStringList(listing); | |
551 | closedir(d); | |
552 | goto bail; | |
553 | } | |
554 | strncpy(listing[n], dp->d_name + match[1].rm_so, | |
555 | len); | |
556 | listing[n][len] = '\0'; | |
557 | n++; | |
558 | break; | |
559 | } | |
560 | } | |
561 | } | |
562 | closedir(d); | |
563 | } | |
564 | } | |
565 | } | |
566 | if (listing) | |
567 | listing[n] = NULL; | |
568 | ret = listing; | |
569 | ||
570 | bail: | |
571 | FreePatterns(patterns); | |
572 | FreeSubdirs(subdirs); | |
573 | FreePathList(pathlist); | |
574 | return ret; | |
575 | } | |
576 | ||
577 | void | |
578 | LoaderFreeDirList(char **list) | |
579 | { | |
580 | FreeStringList(list); | |
581 | } | |
582 | ||
583 | static Bool | |
584 | CheckVersion(const char *module, XF86ModuleVersionInfo * data, | |
585 | const XF86ModReqInfo * req) | |
586 | { | |
587 | int vercode[4]; | |
588 | char verstr[4]; | |
589 | long ver = data->xf86version; | |
590 | MessageType errtype; | |
591 | ||
592 | xf86Msg(X_INFO, "Module %s: vendor=\"%s\"\n", | |
593 | data->modname ? data->modname : "UNKNOWN!", | |
594 | data->vendor ? data->vendor : "UNKNOWN!"); | |
595 | ||
596 | /* Check for the different scheme used in XFree86 4.0.x releases: | |
597 | * ((((((((major << 7) | minor) << 7) | subminor) << 5) | beta) << 5) | alpha) | |
598 | * Since it wasn't used in 4.1.0 or later, limit to versions in the 4.0.x | |
599 | * range, which limits the overlap with the new version scheme to conflicts | |
600 | * with 6.71.8.764 through 6.72.39.934. | |
601 | */ | |
602 | if ((ver > (4 << 24)) && (ver < ((4 << 24) + (1 << 17)))) { | |
603 | /* 4.0.x and earlier */ | |
604 | verstr[1] = verstr[3] = 0; | |
605 | verstr[2] = (ver & 0x1f) ? (ver & 0x1f) + 'a' - 1 : 0; | |
606 | ver >>= 5; | |
607 | verstr[0] = (ver & 0x1f) ? (ver & 0x1f) + 'A' - 1 : 0; | |
608 | ver >>= 5; | |
609 | vercode[2] = ver & 0x7f; | |
610 | ver >>= 7; | |
611 | vercode[1] = ver & 0x7f; | |
612 | ver >>= 7; | |
613 | vercode[0] = ver; | |
614 | xf86ErrorF("\tcompiled for %d.%d", vercode[0], vercode[1]); | |
615 | if (vercode[2] != 0) | |
616 | xf86ErrorF(".%d", vercode[2]); | |
617 | xf86ErrorF("%s%s, module version = %d.%d.%d\n", verstr, verstr + 2, | |
618 | data->majorversion, data->minorversion, data->patchlevel); | |
619 | } | |
620 | else { | |
621 | vercode[0] = ver / 10000000; | |
622 | vercode[1] = (ver / 100000) % 100; | |
623 | vercode[2] = (ver / 1000) % 100; | |
624 | vercode[3] = ver % 1000; | |
625 | xf86ErrorF("\tcompiled for %d.%d.%d", vercode[0], vercode[1], | |
626 | vercode[2]); | |
627 | if (vercode[3] != 0) | |
628 | xf86ErrorF(".%d", vercode[3]); | |
629 | xf86ErrorF(", module version = %d.%d.%d\n", data->majorversion, | |
630 | data->minorversion, data->patchlevel); | |
631 | } | |
632 | ||
633 | if (data->moduleclass) | |
634 | xf86ErrorFVerb(2, "\tModule class: %s\n", data->moduleclass); | |
635 | ||
636 | ver = -1; | |
637 | if (data->abiclass) { | |
638 | int abimaj, abimin; | |
639 | int vermaj, vermin; | |
640 | ||
641 | if (!strcmp(data->abiclass, ABI_CLASS_ANSIC)) | |
642 | ver = LoaderVersionInfo.ansicVersion; | |
643 | else if (!strcmp(data->abiclass, ABI_CLASS_VIDEODRV)) | |
644 | ver = LoaderVersionInfo.videodrvVersion; | |
645 | else if (!strcmp(data->abiclass, ABI_CLASS_XINPUT)) | |
646 | ver = LoaderVersionInfo.xinputVersion; | |
647 | else if (!strcmp(data->abiclass, ABI_CLASS_EXTENSION)) | |
648 | ver = LoaderVersionInfo.extensionVersion; | |
649 | else if (!strcmp(data->abiclass, ABI_CLASS_FONT)) | |
650 | ver = LoaderVersionInfo.fontVersion; | |
651 | ||
652 | abimaj = GET_ABI_MAJOR(data->abiversion); | |
653 | abimin = GET_ABI_MINOR(data->abiversion); | |
654 | xf86ErrorFVerb(2, "\tABI class: %s, version %d.%d\n", | |
655 | data->abiclass, abimaj, abimin); | |
656 | if (ver != -1) { | |
657 | vermaj = GET_ABI_MAJOR(ver); | |
658 | vermin = GET_ABI_MINOR(ver); | |
659 | if (abimaj != vermaj) { | |
660 | if (LoaderOptions & LDR_OPT_ABI_MISMATCH_NONFATAL) | |
661 | errtype = X_WARNING; | |
662 | else | |
663 | errtype = X_ERROR; | |
664 | xf86MsgVerb(errtype, 0, | |
665 | "module ABI major version (%d) doesn't" | |
666 | " match the server's version (%d)\n", | |
667 | abimaj, vermaj); | |
668 | if (!(LoaderOptions & LDR_OPT_ABI_MISMATCH_NONFATAL)) | |
669 | return FALSE; | |
670 | } | |
671 | else if (abimin > vermin) { | |
672 | if (LoaderOptions & LDR_OPT_ABI_MISMATCH_NONFATAL) | |
673 | errtype = X_WARNING; | |
674 | else | |
675 | errtype = X_ERROR; | |
676 | xf86MsgVerb(errtype, 0, | |
677 | "module ABI minor version (%d) is " | |
678 | "newer than the server's version " | |
679 | "(%d)\n", abimin, vermin); | |
680 | if (!(LoaderOptions & LDR_OPT_ABI_MISMATCH_NONFATAL)) | |
681 | return FALSE; | |
682 | } | |
683 | } | |
684 | } | |
685 | ||
686 | /* Check against requirements that the caller has specified */ | |
687 | if (req) { | |
688 | if (req->majorversion != MAJOR_UNSPEC) { | |
689 | if (data->majorversion != req->majorversion) { | |
690 | xf86MsgVerb(X_WARNING, 2, "module major version (%d) " | |
691 | "doesn't match required major version (%d)\n", | |
692 | data->majorversion, req->majorversion); | |
693 | return FALSE; | |
694 | } | |
695 | else if (req->minorversion != MINOR_UNSPEC) { | |
696 | if (data->minorversion < req->minorversion) { | |
697 | xf86MsgVerb(X_WARNING, 2, "module minor version (%d) " | |
698 | "is less than the required minor version (%d)\n", | |
699 | data->minorversion, req->minorversion); | |
700 | return FALSE; | |
701 | } | |
702 | else if (data->minorversion == req->minorversion && | |
703 | req->patchlevel != PATCH_UNSPEC) { | |
704 | if (data->patchlevel < req->patchlevel) { | |
705 | xf86MsgVerb(X_WARNING, 2, "module patch level (%d) " | |
706 | "is less than the required patch level (%d)\n", | |
707 | data->patchlevel, req->patchlevel); | |
708 | return FALSE; | |
709 | } | |
710 | } | |
711 | } | |
712 | } | |
713 | if (req->moduleclass) { | |
714 | if (!data->moduleclass || | |
715 | strcmp(req->moduleclass, data->moduleclass)) { | |
716 | xf86MsgVerb(X_WARNING, 2, "Module class (%s) doesn't match " | |
717 | "the required class (%s)\n", | |
718 | data->moduleclass ? data->moduleclass : "<NONE>", | |
719 | req->moduleclass); | |
720 | return FALSE; | |
721 | } | |
722 | } | |
723 | else if (req->abiclass != ABI_CLASS_NONE) { | |
724 | if (!data->abiclass || strcmp(req->abiclass, data->abiclass)) { | |
725 | xf86MsgVerb(X_WARNING, 2, "ABI class (%s) doesn't match the " | |
726 | "required ABI class (%s)\n", | |
727 | data->abiclass ? data->abiclass : "<NONE>", | |
728 | req->abiclass); | |
729 | return FALSE; | |
730 | } | |
731 | } | |
732 | if ((req->abiclass != ABI_CLASS_NONE) && | |
733 | req->abiversion != ABI_VERS_UNSPEC) { | |
734 | int reqmaj, reqmin, maj, min; | |
735 | ||
736 | reqmaj = GET_ABI_MAJOR(req->abiversion); | |
737 | reqmin = GET_ABI_MINOR(req->abiversion); | |
738 | maj = GET_ABI_MAJOR(data->abiversion); | |
739 | min = GET_ABI_MINOR(data->abiversion); | |
740 | if (maj != reqmaj) { | |
741 | xf86MsgVerb(X_WARNING, 2, "ABI major version (%d) doesn't " | |
742 | "match the required ABI major version (%d)\n", | |
743 | maj, reqmaj); | |
744 | return FALSE; | |
745 | } | |
746 | /* XXX Maybe this should be the other way around? */ | |
747 | if (min > reqmin) { | |
748 | xf86MsgVerb(X_WARNING, 2, "module ABI minor version (%d) " | |
749 | "is newer than that available (%d)\n", min, reqmin); | |
750 | return FALSE; | |
751 | } | |
752 | } | |
753 | } | |
754 | return TRUE; | |
755 | } | |
756 | ||
757 | static ModuleDescPtr | |
758 | AddSibling(ModuleDescPtr head, ModuleDescPtr new) | |
759 | { | |
760 | new->sib = head; | |
761 | return new; | |
762 | } | |
763 | ||
764 | pointer | |
765 | LoadSubModule(pointer _parent, const char *module, | |
766 | const char **subdirlist, const char **patternlist, | |
767 | pointer options, const XF86ModReqInfo * modreq, | |
768 | int *errmaj, int *errmin) | |
769 | { | |
770 | ModuleDescPtr submod; | |
771 | ModuleDescPtr parent = (ModuleDescPtr) _parent; | |
772 | ||
773 | xf86MsgVerb(X_INFO, 3, "Loading sub module \"%s\"\n", module); | |
774 | ||
775 | if (PathIsAbsolute(module)) { | |
776 | xf86Msg(X_ERROR, | |
777 | "LoadSubModule: Absolute module path not permitted: \"%s\"\n", | |
778 | module); | |
779 | if (errmaj) | |
780 | *errmaj = LDR_BADUSAGE; | |
781 | if (errmin) | |
782 | *errmin = 0; | |
783 | return NULL; | |
784 | } | |
785 | ||
786 | submod = doLoadModule(module, NULL, subdirlist, patternlist, options, | |
787 | modreq, errmaj, errmin); | |
788 | if (submod && submod != (ModuleDescPtr) 1) { | |
789 | parent->child = AddSibling(parent->child, submod); | |
790 | submod->parent = parent; | |
791 | } | |
792 | return submod; | |
793 | } | |
794 | ||
795 | static ModuleDescPtr | |
796 | NewModuleDesc(const char *name) | |
797 | { | |
798 | ModuleDescPtr mdp = calloc(1, sizeof(ModuleDesc)); | |
799 | ||
800 | if (mdp) | |
801 | mdp->name = xstrdup(name); | |
802 | ||
803 | return mdp; | |
804 | } | |
805 | ||
806 | ModuleDescPtr | |
807 | DuplicateModule(ModuleDescPtr mod, ModuleDescPtr parent) | |
808 | { | |
809 | ModuleDescPtr ret; | |
810 | ||
811 | if (!mod) | |
812 | return NULL; | |
813 | ||
814 | ret = NewModuleDesc(mod->name); | |
815 | if (ret == NULL) | |
816 | return NULL; | |
817 | ||
818 | ret->handle = mod->handle; | |
819 | ||
820 | ret->SetupProc = mod->SetupProc; | |
821 | ret->TearDownProc = mod->TearDownProc; | |
822 | ret->TearDownData = ModuleDuplicated; | |
823 | ret->child = DuplicateModule(mod->child, ret); | |
824 | ret->sib = DuplicateModule(mod->sib, parent); | |
825 | ret->parent = parent; | |
826 | ret->VersionInfo = mod->VersionInfo; | |
827 | ret->path = strdup(mod->path); | |
828 | ||
829 | return ret; | |
830 | } | |
831 | ||
832 | static const char *compiled_in_modules[] = { | |
833 | "ddc", | |
834 | "i2c", | |
835 | "ramdac", | |
836 | "dbe", | |
837 | "record", | |
838 | "extmod", | |
839 | "dri", | |
840 | "dri2", | |
841 | NULL | |
842 | }; | |
843 | ||
844 | static ModuleDescPtr | |
845 | doLoadModule(const char *module, const char *path, const char **subdirlist, | |
846 | const char **patternlist, pointer options, | |
847 | const XF86ModReqInfo * modreq, int *errmaj, int *errmin) | |
848 | { | |
849 | XF86ModuleData *initdata = NULL; | |
850 | char **pathlist = NULL; | |
851 | char *found = NULL; | |
852 | char *name = NULL; | |
853 | char **path_elem = NULL; | |
854 | char *p = NULL; | |
855 | ModuleDescPtr ret = NULL; | |
856 | PatternPtr patterns = NULL; | |
857 | int noncanonical = 0; | |
858 | char *m = NULL; | |
859 | const char **cim; | |
860 | ||
861 | xf86MsgVerb(X_INFO, 3, "LoadModule: \"%s\"", module); | |
862 | ||
863 | patterns = InitPatterns(patternlist); | |
864 | name = LoaderGetCanonicalName(module, patterns); | |
865 | noncanonical = (name && strcmp(module, name) != 0); | |
866 | if (noncanonical) { | |
867 | xf86ErrorFVerb(3, " (%s)\n", name); | |
868 | xf86MsgVerb(X_WARNING, 1, | |
869 | "LoadModule: given non-canonical module name \"%s\"\n", | |
870 | module); | |
871 | m = name; | |
872 | } | |
873 | else { | |
874 | xf86ErrorFVerb(3, "\n"); | |
875 | m = (char *) module; | |
876 | } | |
877 | ||
878 | for (cim = compiled_in_modules; *cim; cim++) | |
879 | if (!strcmp(m, *cim)) { | |
880 | xf86MsgVerb(X_INFO, 3, "Module \"%s\" already built-in\n", m); | |
881 | ret = (ModuleDescPtr) 1; | |
882 | goto LoadModule_exit; | |
883 | } | |
884 | ||
885 | if (!name) { | |
886 | if (errmaj) | |
887 | *errmaj = LDR_BADUSAGE; | |
888 | if (errmin) | |
889 | *errmin = 0; | |
890 | goto LoadModule_fail; | |
891 | } | |
892 | ret = NewModuleDesc(name); | |
893 | if (!ret) { | |
894 | if (errmaj) | |
895 | *errmaj = LDR_NOMEM; | |
896 | if (errmin) | |
897 | *errmin = 0; | |
898 | goto LoadModule_fail; | |
899 | } | |
900 | ||
901 | pathlist = InitPathList(path); | |
902 | if (!pathlist) { | |
903 | /* This could be a malloc failure too */ | |
904 | if (errmaj) | |
905 | *errmaj = LDR_BADUSAGE; | |
906 | if (errmin) | |
907 | *errmin = 1; | |
908 | goto LoadModule_fail; | |
909 | } | |
910 | ||
911 | /* | |
912 | * if the module name is not a full pathname, we need to | |
913 | * check the elements in the path | |
914 | */ | |
915 | if (PathIsAbsolute(module)) | |
916 | found = xstrdup(module); | |
917 | path_elem = pathlist; | |
918 | while (!found && *path_elem != NULL) { | |
919 | found = FindModule(m, *path_elem, subdirlist, patterns); | |
920 | path_elem++; | |
921 | /* | |
922 | * When the module name isn't the canonical name, search for the | |
923 | * former if no match was found for the latter. | |
924 | */ | |
925 | if (!*path_elem && m == name) { | |
926 | path_elem = pathlist; | |
927 | m = (char *) module; | |
928 | } | |
929 | } | |
930 | ||
931 | /* | |
932 | * did we find the module? | |
933 | */ | |
934 | if (!found) { | |
935 | xf86Msg(X_WARNING, "Warning, couldn't open module %s\n", module); | |
936 | if (errmaj) | |
937 | *errmaj = LDR_NOENT; | |
938 | if (errmin) | |
939 | *errmin = 0; | |
940 | goto LoadModule_fail; | |
941 | } | |
942 | ret->handle = LoaderOpen(found, errmaj, errmin); | |
943 | if (ret->handle == NULL) | |
944 | goto LoadModule_fail; | |
945 | ret->path = strdup(found); | |
946 | ||
947 | /* drop any explicit suffix from the module name */ | |
948 | p = strchr(name, '.'); | |
949 | if (p) | |
950 | *p = '\0'; | |
951 | ||
952 | /* | |
953 | * now check if the special data object <modulename>ModuleData is | |
954 | * present. | |
955 | */ | |
956 | if (asprintf(&p, "%sModuleData", name) == -1) { | |
957 | p = NULL; | |
958 | if (errmaj) | |
959 | *errmaj = LDR_NOMEM; | |
960 | if (errmin) | |
961 | *errmin = 0; | |
962 | goto LoadModule_fail; | |
963 | } | |
964 | initdata = LoaderSymbolFromModule(ret->handle, p); | |
965 | if (initdata) { | |
966 | ModuleSetupProc setup; | |
967 | ModuleTearDownProc teardown; | |
968 | XF86ModuleVersionInfo *vers; | |
969 | ||
970 | vers = initdata->vers; | |
971 | setup = initdata->setup; | |
972 | teardown = initdata->teardown; | |
973 | ||
974 | if (vers) { | |
975 | if (!CheckVersion(module, vers, modreq)) { | |
976 | if (errmaj) | |
977 | *errmaj = LDR_MISMATCH; | |
978 | if (errmin) | |
979 | *errmin = 0; | |
980 | goto LoadModule_fail; | |
981 | } | |
982 | } | |
983 | else { | |
984 | xf86Msg(X_ERROR, | |
985 | "LoadModule: Module %s does not supply" | |
986 | " version information\n", module); | |
987 | if (errmaj) | |
988 | *errmaj = LDR_INVALID; | |
989 | if (errmin) | |
990 | *errmin = 0; | |
991 | goto LoadModule_fail; | |
992 | } | |
993 | if (setup) | |
994 | ret->SetupProc = setup; | |
995 | if (teardown) | |
996 | ret->TearDownProc = teardown; | |
997 | ret->VersionInfo = vers; | |
998 | } | |
999 | else { | |
1000 | /* no initdata, fail the load */ | |
1001 | xf86Msg(X_ERROR, "LoadModule: Module %s does not have a %s " | |
1002 | "data object.\n", module, p); | |
1003 | if (errmaj) | |
1004 | *errmaj = LDR_INVALID; | |
1005 | if (errmin) | |
1006 | *errmin = 0; | |
1007 | goto LoadModule_fail; | |
1008 | } | |
1009 | if (ret->SetupProc) { | |
1010 | ret->TearDownData = ret->SetupProc(ret, options, errmaj, errmin); | |
1011 | if (!ret->TearDownData) { | |
1012 | goto LoadModule_fail; | |
1013 | } | |
1014 | } | |
1015 | else if (options) { | |
1016 | xf86Msg(X_WARNING, "Module Options present, but no SetupProc " | |
1017 | "available for %s\n", module); | |
1018 | } | |
1019 | goto LoadModule_exit; | |
1020 | ||
1021 | LoadModule_fail: | |
1022 | UnloadModule(ret); | |
1023 | ret = NULL; | |
1024 | ||
1025 | LoadModule_exit: | |
1026 | FreePathList(pathlist); | |
1027 | FreePatterns(patterns); | |
1028 | free(found); | |
1029 | free(name); | |
1030 | free(p); | |
1031 | ||
1032 | return ret; | |
1033 | } | |
1034 | ||
1035 | /* | |
1036 | * LoadModule: load a module | |
1037 | * | |
1038 | * module The module name. Normally this is not a filename but the | |
1039 | * module's "canonical name. A full pathname is, however, | |
1040 | * also accepted. | |
1041 | * path A comma separated list of module directories. | |
1042 | * subdirlist A NULL terminated list of subdirectories to search. When | |
1043 | * NULL, the default "stdSubdirs" list is used. The default | |
1044 | * list is also substituted for entries with value DEFAULT_LIST. | |
1045 | * patternlist A NULL terminated list of regular expressions used to find | |
1046 | * module filenames. Each regex should contain exactly one | |
1047 | * subexpression that corresponds to the canonical module name. | |
1048 | * When NULL, the default "stdPatterns" list is used. The | |
1049 | * default list is also substituted for entries with value | |
1050 | * DEFAULT_LIST. | |
1051 | * options A NULL terminated list of Options that are passed to the | |
1052 | * module's SetupProc function. | |
1053 | * modreq An optional XF86ModReqInfo* containing | |
1054 | * version/ABI/vendor-ABI requirements to check for when | |
1055 | * loading the module. The following fields of the | |
1056 | * XF86ModReqInfo struct are checked: | |
1057 | * majorversion - must match the module's majorversion exactly | |
1058 | * minorversion - the module's minorversion must be >= this | |
1059 | * patchlevel - the module's minorversion.patchlevel must be | |
1060 | * >= this. Patchlevel is ignored when | |
1061 | * minorversion is not set. | |
1062 | * abiclass - (string) must match the module's abiclass | |
1063 | * abiversion - must be consistent with the module's | |
1064 | * abiversion (major equal, minor no older) | |
1065 | * moduleclass - string must match the module's moduleclass | |
1066 | * string | |
1067 | * "don't care" values are ~0 for numbers, and NULL for strings | |
1068 | * errmaj Major error return. | |
1069 | * errmin Minor error return. | |
1070 | * | |
1071 | */ | |
1072 | ModuleDescPtr | |
1073 | LoadModule(const char *module, const char *path, const char **subdirlist, | |
1074 | const char **patternlist, pointer options, | |
1075 | const XF86ModReqInfo * modreq, int *errmaj, int *errmin) | |
1076 | { | |
1077 | return doLoadModule(module, path, subdirlist, patternlist, options, | |
1078 | modreq, errmaj, errmin); | |
1079 | } | |
1080 | ||
1081 | void | |
1082 | UnloadModule(pointer mod) | |
1083 | { | |
1084 | UnloadModuleOrDriver((ModuleDescPtr) mod); | |
1085 | } | |
1086 | ||
1087 | static void | |
1088 | UnloadModuleOrDriver(ModuleDescPtr mod) | |
1089 | { | |
1090 | if (mod == (ModuleDescPtr) 1) | |
1091 | return; | |
1092 | ||
1093 | if (mod == NULL || mod->name == NULL) | |
1094 | return; | |
1095 | ||
1096 | if (mod->parent) | |
1097 | LogMessageVerbSigSafe(X_INFO, 3, "UnloadSubModule: \"%s\"\n", | |
1098 | mod->name); | |
1099 | else | |
1100 | LogMessageVerbSigSafe(X_INFO, 3, "UnloadModule: \"%s\"\n", mod->name); | |
1101 | ||
1102 | if (mod->TearDownData != ModuleDuplicated) { | |
1103 | if ((mod->TearDownProc) && (mod->TearDownData)) | |
1104 | mod->TearDownProc(mod->TearDownData); | |
1105 | LoaderUnload(mod->name, mod->handle); | |
1106 | } | |
1107 | ||
1108 | if (mod->child) | |
1109 | UnloadModuleOrDriver(mod->child); | |
1110 | if (mod->sib) | |
1111 | UnloadModuleOrDriver(mod->sib); | |
1112 | free(mod->path); | |
1113 | free(mod->name); | |
1114 | free(mod); | |
1115 | } | |
1116 | ||
1117 | void | |
1118 | UnloadSubModule(pointer _mod) | |
1119 | { | |
1120 | ModuleDescPtr mod = (ModuleDescPtr) _mod; | |
1121 | ||
1122 | /* Some drivers are calling us on built-in submodules, ignore them */ | |
1123 | if (mod == (ModuleDescPtr) 1) | |
1124 | return; | |
1125 | RemoveChild(mod); | |
1126 | UnloadModuleOrDriver(mod); | |
1127 | } | |
1128 | ||
1129 | static void | |
1130 | RemoveChild(ModuleDescPtr child) | |
1131 | { | |
1132 | ModuleDescPtr mdp; | |
1133 | ModuleDescPtr prevsib; | |
1134 | ModuleDescPtr parent; | |
1135 | ||
1136 | if (!child->parent) | |
1137 | return; | |
1138 | ||
1139 | parent = child->parent; | |
1140 | if (parent->child == child) { | |
1141 | parent->child = child->sib; | |
1142 | return; | |
1143 | } | |
1144 | ||
1145 | prevsib = parent->child; | |
1146 | mdp = prevsib->sib; | |
1147 | while (mdp && mdp != child) { | |
1148 | prevsib = mdp; | |
1149 | mdp = mdp->sib; | |
1150 | } | |
1151 | if (mdp == child) | |
1152 | prevsib->sib = child->sib; | |
1153 | child->sib = NULL; | |
1154 | return; | |
1155 | } | |
1156 | ||
1157 | void | |
1158 | LoaderErrorMsg(const char *name, const char *modname, int errmaj, int errmin) | |
1159 | { | |
1160 | const char *msg; | |
1161 | MessageType type = X_ERROR; | |
1162 | ||
1163 | switch (errmaj) { | |
1164 | case LDR_NOERROR: | |
1165 | msg = "no error"; | |
1166 | break; | |
1167 | case LDR_NOMEM: | |
1168 | msg = "out of memory"; | |
1169 | break; | |
1170 | case LDR_NOENT: | |
1171 | msg = "module does not exist"; | |
1172 | break; | |
1173 | case LDR_NOSUBENT: | |
1174 | msg = "a required submodule could not be loaded"; | |
1175 | break; | |
1176 | case LDR_NOSPACE: | |
1177 | msg = "too many modules"; | |
1178 | break; | |
1179 | case LDR_NOMODOPEN: | |
1180 | msg = "open failed"; | |
1181 | break; | |
1182 | case LDR_UNKTYPE: | |
1183 | msg = "unknown module type"; | |
1184 | break; | |
1185 | case LDR_NOLOAD: | |
1186 | msg = "loader failed"; | |
1187 | break; | |
1188 | case LDR_ONCEONLY: | |
1189 | msg = "already loaded"; | |
1190 | type = X_INFO; | |
1191 | break; | |
1192 | case LDR_NOPORTOPEN: | |
1193 | msg = "port open failed"; | |
1194 | break; | |
1195 | case LDR_NOHARDWARE: | |
1196 | msg = "no hardware found"; | |
1197 | break; | |
1198 | case LDR_MISMATCH: | |
1199 | msg = "module requirement mismatch"; | |
1200 | break; | |
1201 | case LDR_BADUSAGE: | |
1202 | msg = "invalid argument(s) to LoadModule()"; | |
1203 | break; | |
1204 | case LDR_INVALID: | |
1205 | msg = "invalid module"; | |
1206 | break; | |
1207 | case LDR_BADOS: | |
1208 | msg = "module doesn't support this OS"; | |
1209 | break; | |
1210 | case LDR_MODSPECIFIC: | |
1211 | msg = "module-specific error"; | |
1212 | break; | |
1213 | default: | |
1214 | msg = "unknown error"; | |
1215 | } | |
1216 | if (name) | |
1217 | xf86Msg(type, "%s: Failed to load module \"%s\" (%s, %d)\n", | |
1218 | name, modname, msg, errmin); | |
1219 | else | |
1220 | xf86Msg(type, "Failed to load module \"%s\" (%s, %d)\n", | |
1221 | modname, msg, errmin); | |
1222 | } | |
1223 | ||
1224 | /* Given a module path or file name, return the module's canonical name */ | |
1225 | static char * | |
1226 | LoaderGetCanonicalName(const char *modname, PatternPtr patterns) | |
1227 | { | |
1228 | char *str; | |
1229 | const char *s; | |
1230 | int len; | |
1231 | PatternPtr p; | |
1232 | regmatch_t match[2]; | |
1233 | ||
1234 | /* Strip off any leading path */ | |
1235 | s = strrchr(modname, '/'); | |
1236 | if (s == NULL) | |
1237 | s = modname; | |
1238 | else | |
1239 | s++; | |
1240 | ||
1241 | /* Find the first regex that is matched */ | |
1242 | for (p = patterns; p->pattern; p++) | |
1243 | if (regexec(&p->rex, s, 2, match, 0) == 0 && match[1].rm_so != -1) { | |
1244 | len = match[1].rm_eo - match[1].rm_so; | |
1245 | str = malloc(len + 1); | |
1246 | if (!str) | |
1247 | return NULL; | |
1248 | strncpy(str, s + match[1].rm_so, len); | |
1249 | str[len] = '\0'; | |
1250 | return str; | |
1251 | } | |
1252 | ||
1253 | /* If there is no match, return the whole name minus the leading path */ | |
1254 | return strdup(s); | |
1255 | } | |
1256 | ||
1257 | /* | |
1258 | * Return the module version information. | |
1259 | */ | |
1260 | unsigned long | |
1261 | LoaderGetModuleVersion(ModuleDescPtr mod) | |
1262 | { | |
1263 | if (!mod || mod == (ModuleDescPtr) 1 || !mod->VersionInfo) | |
1264 | return 0; | |
1265 | ||
1266 | return MODULE_VERSION_NUMERIC(mod->VersionInfo->majorversion, | |
1267 | mod->VersionInfo->minorversion, | |
1268 | mod->VersionInfo->patchlevel); | |
1269 | } |