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0f113f3e | 1 | /* |
d2e9e320 | 2 | * Copyright 2000-2016 The OpenSSL Project Authors. All Rights Reserved. |
0e05f545 | 3 | * |
d2e9e320 RS |
4 | * Licensed under the OpenSSL license (the "License"). You may not use |
5 | * this file except in compliance with the License. You can obtain a copy | |
6 | * in the file LICENSE in the source distribution or at | |
7 | * https://www.openssl.org/source/license.html | |
0e05f545 RL |
8 | */ |
9 | ||
73decf59 | 10 | #include "dso_locl.h" |
da12bfca | 11 | |
38186bfd | 12 | #ifdef OPENSSL_SYS_VMS |
da12bfca | 13 | |
0f113f3e | 14 | # pragma message disable DOLLARID |
73decf59 | 15 | # include <errno.h> |
0f113f3e MC |
16 | # include <rms.h> |
17 | # include <lib$routines.h> | |
828d04af | 18 | # include <libfisdef.h> |
0f113f3e MC |
19 | # include <stsdef.h> |
20 | # include <descrip.h> | |
21 | # include <starlet.h> | |
3dc9589c | 22 | # include "../vms_rms.h" |
537c9823 RL |
23 | |
24 | /* Some compiler options may mask the declaration of "_malloc32". */ | |
0f113f3e MC |
25 | # if __INITIAL_POINTER_SIZE && defined _ANSI_C_SOURCE |
26 | # if __INITIAL_POINTER_SIZE == 64 | |
27 | # pragma pointer_size save | |
28 | # pragma pointer_size 32 | |
29 | void *_malloc32(__size_t); | |
30 | # pragma pointer_size restore | |
31 | # endif /* __INITIAL_POINTER_SIZE == 64 */ | |
32 | # endif /* __INITIAL_POINTER_SIZE && defined | |
33 | * _ANSI_C_SOURCE */ | |
34 | ||
35 | # pragma message disable DOLLARID | |
0e05f545 | 36 | |
51c8dc37 | 37 | static int vms_load(DSO *dso); |
0e05f545 | 38 | static int vms_unload(DSO *dso); |
0e05f545 | 39 | static DSO_FUNC_TYPE vms_bind_func(DSO *dso, const char *symname); |
03c4d82f | 40 | static char *vms_name_converter(DSO *dso, const char *filename); |
cbecb3ac | 41 | static char *vms_merger(DSO *dso, const char *filespec1, |
0f113f3e | 42 | const char *filespec2); |
0e05f545 RL |
43 | |
44 | static DSO_METHOD dso_meth_vms = { | |
0f113f3e MC |
45 | "OpenSSL 'VMS' shared library method", |
46 | vms_load, | |
47 | NULL, /* unload */ | |
0f113f3e | 48 | vms_bind_func, |
0f113f3e MC |
49 | NULL, /* ctrl */ |
50 | vms_name_converter, | |
51 | vms_merger, | |
52 | NULL, /* init */ | |
cb6ea61c MC |
53 | NULL, /* finish */ |
54 | NULL, /* pathbyaddr */ | |
55 | NULL /* globallookup */ | |
0f113f3e MC |
56 | }; |
57 | ||
58 | /* | |
59 | * On VMS, the only "handle" is the file name. LIB$FIND_IMAGE_SYMBOL depends | |
0e05f545 RL |
60 | * on the reference to the file name being the same for all calls regarding |
61 | * one shared image, so we'll just store it in an instance of the following | |
62 | * structure and put a pointer to that instance in the meth_data stack. | |
63 | */ | |
0f113f3e MC |
64 | typedef struct dso_internal_st { |
65 | /* | |
66 | * This should contain the name only, no directory, no extension, nothing | |
67 | * but a name. | |
68 | */ | |
69 | struct dsc$descriptor_s filename_dsc; | |
70 | char filename[NAMX_MAXRSS + 1]; | |
71 | /* | |
72 | * This contains whatever is not in filename, if needed. Normally not | |
73 | * defined. | |
74 | */ | |
75 | struct dsc$descriptor_s imagename_dsc; | |
76 | char imagename[NAMX_MAXRSS + 1]; | |
77 | } DSO_VMS_INTERNAL; | |
0e05f545 | 78 | |
38186bfd | 79 | DSO_METHOD *DSO_METHOD_openssl(void) |
0f113f3e | 80 | { |
38186bfd | 81 | return &dso_meth_vms; |
0f113f3e | 82 | } |
0e05f545 | 83 | |
51c8dc37 | 84 | static int vms_load(DSO *dso) |
0f113f3e MC |
85 | { |
86 | void *ptr = NULL; | |
87 | /* See applicable comments in dso_dl.c */ | |
88 | char *filename = DSO_convert_filename(dso, NULL); | |
537c9823 RL |
89 | |
90 | /* Ensure 32-bit pointer for "p", and appropriate malloc() function. */ | |
0f113f3e MC |
91 | # if __INITIAL_POINTER_SIZE == 64 |
92 | # define DSO_MALLOC _malloc32 | |
93 | # pragma pointer_size save | |
94 | # pragma pointer_size 32 | |
95 | # else /* __INITIAL_POINTER_SIZE == 64 */ | |
96 | # define DSO_MALLOC OPENSSL_malloc | |
97 | # endif /* __INITIAL_POINTER_SIZE == 64 [else] */ | |
98 | ||
99 | DSO_VMS_INTERNAL *p = NULL; | |
100 | ||
101 | # if __INITIAL_POINTER_SIZE == 64 | |
102 | # pragma pointer_size restore | |
103 | # endif /* __INITIAL_POINTER_SIZE == 64 */ | |
104 | ||
105 | const char *sp1, *sp2; /* Search result */ | |
dccd20d1 | 106 | const char *ext = NULL; /* possible extension to add */ |
0f113f3e MC |
107 | |
108 | if (filename == NULL) { | |
109 | DSOerr(DSO_F_VMS_LOAD, DSO_R_NO_FILENAME); | |
110 | goto err; | |
111 | } | |
112 | ||
50e735f9 MC |
113 | /*- |
114 | * A file specification may look like this: | |
115 | * | |
116 | * node::dev:[dir-spec]name.type;ver | |
117 | * | |
118 | * or (for compatibility with TOPS-20): | |
119 | * | |
120 | * node::dev:<dir-spec>name.type;ver | |
121 | * | |
122 | * and the dir-spec uses '.' as separator. Also, a dir-spec | |
123 | * may consist of several parts, with mixed use of [] and <>: | |
124 | * | |
125 | * [dir1.]<dir2> | |
126 | * | |
127 | * We need to split the file specification into the name and | |
128 | * the rest (both before and after the name itself). | |
129 | */ | |
0f113f3e MC |
130 | /* |
131 | * Start with trying to find the end of a dir-spec, and save the position | |
132 | * of the byte after in sp1 | |
133 | */ | |
134 | sp1 = strrchr(filename, ']'); | |
135 | sp2 = strrchr(filename, '>'); | |
136 | if (sp1 == NULL) | |
137 | sp1 = sp2; | |
138 | if (sp2 != NULL && sp2 > sp1) | |
139 | sp1 = sp2; | |
140 | if (sp1 == NULL) | |
141 | sp1 = strrchr(filename, ':'); | |
142 | if (sp1 == NULL) | |
143 | sp1 = filename; | |
144 | else | |
145 | sp1++; /* The byte after the found character */ | |
146 | /* Now, let's see if there's a type, and save the position in sp2 */ | |
147 | sp2 = strchr(sp1, '.'); | |
be7b1097 RL |
148 | /* |
149 | * If there is a period and the next character is a semi-colon, | |
150 | * we need to add an extension | |
151 | */ | |
152 | if (sp2 != NULL && sp2[1] == ';') | |
153 | ext = ".EXE"; | |
0f113f3e MC |
154 | /* |
155 | * If we found it, that's where we'll cut. Otherwise, look for a version | |
156 | * number and save the position in sp2 | |
157 | */ | |
be7b1097 | 158 | if (sp2 == NULL) { |
0f113f3e | 159 | sp2 = strchr(sp1, ';'); |
be7b1097 RL |
160 | ext = ".EXE"; |
161 | } | |
0f113f3e MC |
162 | /* |
163 | * If there was still nothing to find, set sp2 to point at the end of the | |
164 | * string | |
165 | */ | |
166 | if (sp2 == NULL) | |
167 | sp2 = sp1 + strlen(sp1); | |
168 | ||
169 | /* Check that we won't get buffer overflows */ | |
170 | if (sp2 - sp1 > FILENAME_MAX | |
171 | || (sp1 - filename) + strlen(sp2) > FILENAME_MAX) { | |
172 | DSOerr(DSO_F_VMS_LOAD, DSO_R_FILENAME_TOO_BIG); | |
173 | goto err; | |
174 | } | |
175 | ||
b4faea50 | 176 | p = DSO_MALLOC(sizeof(*p)); |
0f113f3e MC |
177 | if (p == NULL) { |
178 | DSOerr(DSO_F_VMS_LOAD, ERR_R_MALLOC_FAILURE); | |
179 | goto err; | |
180 | } | |
181 | ||
182 | strncpy(p->filename, sp1, sp2 - sp1); | |
183 | p->filename[sp2 - sp1] = '\0'; | |
184 | ||
185 | strncpy(p->imagename, filename, sp1 - filename); | |
186 | p->imagename[sp1 - filename] = '\0'; | |
be7b1097 RL |
187 | if (ext) { |
188 | strcat(p->imagename, ext); | |
189 | if (*sp2 == '.') | |
190 | sp2++; | |
191 | } | |
0f113f3e MC |
192 | strcat(p->imagename, sp2); |
193 | ||
194 | p->filename_dsc.dsc$w_length = strlen(p->filename); | |
195 | p->filename_dsc.dsc$b_dtype = DSC$K_DTYPE_T; | |
196 | p->filename_dsc.dsc$b_class = DSC$K_CLASS_S; | |
197 | p->filename_dsc.dsc$a_pointer = p->filename; | |
198 | p->imagename_dsc.dsc$w_length = strlen(p->imagename); | |
199 | p->imagename_dsc.dsc$b_dtype = DSC$K_DTYPE_T; | |
200 | p->imagename_dsc.dsc$b_class = DSC$K_CLASS_S; | |
201 | p->imagename_dsc.dsc$a_pointer = p->imagename; | |
202 | ||
203 | if (!sk_void_push(dso->meth_data, (char *)p)) { | |
204 | DSOerr(DSO_F_VMS_LOAD, DSO_R_STACK_ERROR); | |
205 | goto err; | |
206 | } | |
207 | ||
208 | /* Success (for now, we lie. We actually do not know...) */ | |
209 | dso->loaded_filename = filename; | |
208fb891 | 210 | return 1; |
0f113f3e MC |
211 | err: |
212 | /* Cleanup! */ | |
b548a1f1 RS |
213 | OPENSSL_free(p); |
214 | OPENSSL_free(filename); | |
26a7d938 | 215 | return 0; |
0f113f3e MC |
216 | } |
217 | ||
218 | /* | |
219 | * Note that this doesn't actually unload the shared image, as there is no | |
0e05f545 RL |
220 | * such thing in VMS. Next time it get loaded again, a new copy will |
221 | * actually be loaded. | |
222 | */ | |
223 | static int vms_unload(DSO *dso) | |
0f113f3e MC |
224 | { |
225 | DSO_VMS_INTERNAL *p; | |
226 | if (dso == NULL) { | |
227 | DSOerr(DSO_F_VMS_UNLOAD, ERR_R_PASSED_NULL_PARAMETER); | |
26a7d938 | 228 | return 0; |
0f113f3e MC |
229 | } |
230 | if (sk_void_num(dso->meth_data) < 1) | |
208fb891 | 231 | return 1; |
0f113f3e MC |
232 | p = (DSO_VMS_INTERNAL *)sk_void_pop(dso->meth_data); |
233 | if (p == NULL) { | |
234 | DSOerr(DSO_F_VMS_UNLOAD, DSO_R_NULL_HANDLE); | |
26a7d938 | 235 | return 0; |
0f113f3e MC |
236 | } |
237 | /* Cleanup */ | |
238 | OPENSSL_free(p); | |
208fb891 | 239 | return 1; |
0f113f3e MC |
240 | } |
241 | ||
242 | /* | |
243 | * We must do this in a separate function because of the way the exception | |
244 | * handler works (it makes this function return | |
245 | */ | |
0e05f545 | 246 | static int do_find_symbol(DSO_VMS_INTERNAL *ptr, |
0f113f3e MC |
247 | struct dsc$descriptor_s *symname_dsc, void **sym, |
248 | unsigned long flags) | |
249 | { | |
250 | /* | |
251 | * Make sure that signals are caught and returned instead of aborting the | |
252 | * program. The exception handler gets unestablished automatically on | |
253 | * return from this function. | |
254 | */ | |
255 | lib$establish(lib$sig_to_ret); | |
256 | ||
257 | if (ptr->imagename_dsc.dsc$w_length) | |
258 | return lib$find_image_symbol(&ptr->filename_dsc, | |
259 | symname_dsc, sym, | |
260 | &ptr->imagename_dsc, flags); | |
261 | else | |
262 | return lib$find_image_symbol(&ptr->filename_dsc, | |
263 | symname_dsc, sym, 0, flags); | |
264 | } | |
0e05f545 | 265 | |
278a33da RL |
266 | # ifndef LIB$M_FIS_MIXEDCASE |
267 | # define LIB$M_FIS_MIXEDCASE (1 << 4); | |
268 | # endif | |
3aa477f6 | 269 | void vms_bind_sym(DSO *dso, const char *symname, void **sym) |
0f113f3e MC |
270 | { |
271 | DSO_VMS_INTERNAL *ptr; | |
278a33da | 272 | int status = 0; |
0f113f3e | 273 | struct dsc$descriptor_s symname_dsc; |
0e05f545 | 274 | |
537c9823 | 275 | /* Arrange 32-bit pointer to (copied) string storage, if needed. */ |
0f113f3e MC |
276 | # if __INITIAL_POINTER_SIZE == 64 |
277 | # define SYMNAME symname_32p | |
278 | # pragma pointer_size save | |
279 | # pragma pointer_size 32 | |
280 | char *symname_32p; | |
281 | # pragma pointer_size restore | |
282 | char symname_32[NAMX_MAXRSS + 1]; | |
283 | # else /* __INITIAL_POINTER_SIZE == 64 */ | |
284 | # define SYMNAME ((char *) symname) | |
285 | # endif /* __INITIAL_POINTER_SIZE == 64 [else] */ | |
286 | ||
287 | *sym = NULL; | |
288 | ||
289 | if ((dso == NULL) || (symname == NULL)) { | |
290 | DSOerr(DSO_F_VMS_BIND_SYM, ERR_R_PASSED_NULL_PARAMETER); | |
291 | return; | |
292 | } | |
293 | # if __INITIAL_POINTER_SIZE == 64 | |
294 | /* Copy the symbol name to storage with a 32-bit pointer. */ | |
295 | symname_32p = symname_32; | |
296 | strcpy(symname_32p, symname); | |
297 | # endif /* __INITIAL_POINTER_SIZE == 64 [else] */ | |
298 | ||
299 | symname_dsc.dsc$w_length = strlen(SYMNAME); | |
300 | symname_dsc.dsc$b_dtype = DSC$K_DTYPE_T; | |
301 | symname_dsc.dsc$b_class = DSC$K_CLASS_S; | |
302 | symname_dsc.dsc$a_pointer = SYMNAME; | |
303 | ||
304 | if (sk_void_num(dso->meth_data) < 1) { | |
305 | DSOerr(DSO_F_VMS_BIND_SYM, DSO_R_STACK_ERROR); | |
306 | return; | |
307 | } | |
308 | ptr = (DSO_VMS_INTERNAL *)sk_void_value(dso->meth_data, | |
309 | sk_void_num(dso->meth_data) - 1); | |
310 | if (ptr == NULL) { | |
311 | DSOerr(DSO_F_VMS_BIND_SYM, DSO_R_NULL_HANDLE); | |
312 | return; | |
313 | } | |
314 | ||
278a33da | 315 | status = do_find_symbol(ptr, &symname_dsc, sym, LIB$M_FIS_MIXEDCASE); |
0f113f3e | 316 | |
278a33da RL |
317 | if (!$VMS_STATUS_SUCCESS(status)) |
318 | status = do_find_symbol(ptr, &symname_dsc, sym, 0); | |
0f113f3e MC |
319 | |
320 | if (!$VMS_STATUS_SUCCESS(status)) { | |
321 | unsigned short length; | |
322 | char errstring[257]; | |
323 | struct dsc$descriptor_s errstring_dsc; | |
324 | ||
325 | errstring_dsc.dsc$w_length = sizeof(errstring); | |
326 | errstring_dsc.dsc$b_dtype = DSC$K_DTYPE_T; | |
327 | errstring_dsc.dsc$b_class = DSC$K_CLASS_S; | |
328 | errstring_dsc.dsc$a_pointer = errstring; | |
329 | ||
330 | *sym = NULL; | |
331 | ||
332 | status = sys$getmsg(status, &length, &errstring_dsc, 1, 0); | |
333 | ||
334 | if (!$VMS_STATUS_SUCCESS(status)) | |
335 | lib$signal(status); /* This is really bad. Abort! */ | |
336 | else { | |
337 | errstring[length] = '\0'; | |
338 | ||
339 | DSOerr(DSO_F_VMS_BIND_SYM, DSO_R_SYM_FAILURE); | |
340 | if (ptr->imagename_dsc.dsc$w_length) | |
341 | ERR_add_error_data(9, | |
342 | "Symbol ", symname, | |
343 | " in ", ptr->filename, | |
344 | " (", ptr->imagename, ")", | |
345 | ": ", errstring); | |
346 | else | |
347 | ERR_add_error_data(6, | |
348 | "Symbol ", symname, | |
349 | " in ", ptr->filename, ": ", errstring); | |
350 | } | |
351 | return; | |
352 | } | |
353 | return; | |
354 | } | |
0e05f545 | 355 | |
0e05f545 | 356 | static DSO_FUNC_TYPE vms_bind_func(DSO *dso, const char *symname) |
0f113f3e MC |
357 | { |
358 | DSO_FUNC_TYPE sym = 0; | |
359 | vms_bind_sym(dso, symname, (void **)&sym); | |
360 | return sym; | |
361 | } | |
362 | ||
363 | static char *vms_merger(DSO *dso, const char *filespec1, | |
364 | const char *filespec2) | |
365 | { | |
366 | int status; | |
367 | int filespec1len, filespec2len; | |
368 | struct FAB fab; | |
369 | struct NAMX_STRUCT nam; | |
370 | char esa[NAMX_MAXRSS + 1]; | |
371 | char *merged; | |
cbecb3ac | 372 | |
537c9823 | 373 | /* Arrange 32-bit pointer to (copied) string storage, if needed. */ |
0f113f3e MC |
374 | # if __INITIAL_POINTER_SIZE == 64 |
375 | # define FILESPEC1 filespec1_32p; | |
376 | # define FILESPEC2 filespec2_32p; | |
377 | # pragma pointer_size save | |
378 | # pragma pointer_size 32 | |
379 | char *filespec1_32p; | |
380 | char *filespec2_32p; | |
381 | # pragma pointer_size restore | |
382 | char filespec1_32[NAMX_MAXRSS + 1]; | |
383 | char filespec2_32[NAMX_MAXRSS + 1]; | |
384 | # else /* __INITIAL_POINTER_SIZE == 64 */ | |
385 | # define FILESPEC1 ((char *) filespec1) | |
386 | # define FILESPEC2 ((char *) filespec2) | |
387 | # endif /* __INITIAL_POINTER_SIZE == 64 [else] */ | |
388 | ||
389 | if (!filespec1) | |
390 | filespec1 = ""; | |
391 | if (!filespec2) | |
392 | filespec2 = ""; | |
393 | filespec1len = strlen(filespec1); | |
394 | filespec2len = strlen(filespec2); | |
395 | ||
396 | # if __INITIAL_POINTER_SIZE == 64 | |
397 | /* Copy the file names to storage with a 32-bit pointer. */ | |
398 | filespec1_32p = filespec1_32; | |
399 | filespec2_32p = filespec2_32; | |
400 | strcpy(filespec1_32p, filespec1); | |
401 | strcpy(filespec2_32p, filespec2); | |
402 | # endif /* __INITIAL_POINTER_SIZE == 64 [else] */ | |
403 | ||
404 | fab = cc$rms_fab; | |
405 | nam = CC_RMS_NAMX; | |
406 | ||
407 | FAB_OR_NAML(fab, nam).FAB_OR_NAML_FNA = FILESPEC1; | |
408 | FAB_OR_NAML(fab, nam).FAB_OR_NAML_FNS = filespec1len; | |
409 | FAB_OR_NAML(fab, nam).FAB_OR_NAML_DNA = FILESPEC2; | |
410 | FAB_OR_NAML(fab, nam).FAB_OR_NAML_DNS = filespec2len; | |
411 | NAMX_DNA_FNA_SET(fab) | |
412 | ||
413 | nam.NAMX_ESA = esa; | |
414 | nam.NAMX_ESS = NAMX_MAXRSS; | |
415 | nam.NAMX_NOP = NAM$M_SYNCHK | NAM$M_PWD; | |
416 | SET_NAMX_NO_SHORT_UPCASE(nam); | |
417 | ||
418 | fab.FAB_NAMX = &nam; | |
419 | ||
420 | status = sys$parse(&fab, 0, 0); | |
421 | ||
422 | if (!$VMS_STATUS_SUCCESS(status)) { | |
423 | unsigned short length; | |
424 | char errstring[257]; | |
425 | struct dsc$descriptor_s errstring_dsc; | |
426 | ||
427 | errstring_dsc.dsc$w_length = sizeof(errstring); | |
428 | errstring_dsc.dsc$b_dtype = DSC$K_DTYPE_T; | |
429 | errstring_dsc.dsc$b_class = DSC$K_CLASS_S; | |
430 | errstring_dsc.dsc$a_pointer = errstring; | |
431 | ||
432 | status = sys$getmsg(status, &length, &errstring_dsc, 1, 0); | |
433 | ||
434 | if (!$VMS_STATUS_SUCCESS(status)) | |
435 | lib$signal(status); /* This is really bad. Abort! */ | |
436 | else { | |
437 | errstring[length] = '\0'; | |
438 | ||
439 | DSOerr(DSO_F_VMS_MERGER, DSO_R_FAILURE); | |
440 | ERR_add_error_data(7, | |
441 | "filespec \"", filespec1, "\", ", | |
442 | "defaults \"", filespec2, "\": ", errstring); | |
443 | } | |
26a7d938 | 444 | return NULL; |
0f113f3e MC |
445 | } |
446 | ||
447 | merged = OPENSSL_malloc(nam.NAMX_ESL + 1); | |
90945fa3 | 448 | if (merged == NULL) |
0f113f3e MC |
449 | goto malloc_err; |
450 | strncpy(merged, nam.NAMX_ESA, nam.NAMX_ESL); | |
451 | merged[nam.NAMX_ESL] = '\0'; | |
26a7d938 | 452 | return merged; |
cbecb3ac | 453 | malloc_err: |
0f113f3e MC |
454 | DSOerr(DSO_F_VMS_MERGER, ERR_R_MALLOC_FAILURE); |
455 | } | |
cbecb3ac | 456 | |
856d456a | 457 | static char *vms_name_converter(DSO *dso, const char *filename) |
0f113f3e MC |
458 | { |
459 | int len = strlen(filename); | |
460 | char *not_translated = OPENSSL_malloc(len + 1); | |
90945fa3 | 461 | if (not_translated != NULL) |
918bb865 | 462 | strcpy(not_translated, filename); |
26a7d938 | 463 | return not_translated; |
0f113f3e MC |
464 | } |
465 | ||
466 | #endif /* OPENSSL_SYS_VMS */ |