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0e05f545 RL |
1 | /* dso_vms.c */ |
2 | /* Written by Richard Levitte (richard@levitte.org) for the OpenSSL | |
3 | * project 2000. | |
4 | */ | |
5 | /* ==================================================================== | |
6 | * Copyright (c) 2000 The OpenSSL Project. All rights reserved. | |
7 | * | |
8 | * Redistribution and use in source and binary forms, with or without | |
9 | * modification, are permitted provided that the following conditions | |
10 | * are met: | |
11 | * | |
12 | * 1. Redistributions of source code must retain the above copyright | |
13 | * notice, this list of conditions and the following disclaimer. | |
14 | * | |
15 | * 2. Redistributions in binary form must reproduce the above copyright | |
16 | * notice, this list of conditions and the following disclaimer in | |
17 | * the documentation and/or other materials provided with the | |
18 | * distribution. | |
19 | * | |
20 | * 3. All advertising materials mentioning features or use of this | |
21 | * software must display the following acknowledgment: | |
22 | * "This product includes software developed by the OpenSSL Project | |
23 | * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" | |
24 | * | |
25 | * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to | |
26 | * endorse or promote products derived from this software without | |
27 | * prior written permission. For written permission, please contact | |
28 | * licensing@OpenSSL.org. | |
29 | * | |
30 | * 5. Products derived from this software may not be called "OpenSSL" | |
31 | * nor may "OpenSSL" appear in their names without prior written | |
32 | * permission of the OpenSSL Project. | |
33 | * | |
34 | * 6. Redistributions of any form whatsoever must retain the following | |
35 | * acknowledgment: | |
36 | * "This product includes software developed by the OpenSSL Project | |
37 | * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" | |
38 | * | |
39 | * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY | |
40 | * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
41 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
42 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR | |
43 | * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
44 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
45 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
46 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
47 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
48 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
49 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | |
50 | * OF THE POSSIBILITY OF SUCH DAMAGE. | |
51 | * ==================================================================== | |
52 | * | |
53 | * This product includes cryptographic software written by Eric Young | |
54 | * (eay@cryptsoft.com). This product includes software written by Tim | |
55 | * Hudson (tjh@cryptsoft.com). | |
56 | * | |
57 | */ | |
58 | ||
59 | #include <stdio.h> | |
60 | #include <string.h> | |
61 | #include <errno.h> | |
bc36ee62 | 62 | #ifdef OPENSSL_SYS_VMS |
3aa477f6 | 63 | #pragma message disable DOLLARID |
0e05f545 RL |
64 | #include <lib$routines.h> |
65 | #include <libfisdef.h> | |
66 | #include <stsdef.h> | |
67 | #include <descrip.h> | |
68 | #include <starlet.h> | |
ea4e4149 | 69 | #endif |
0e05f545 RL |
70 | #include "cryptlib.h" |
71 | #include <openssl/dso.h> | |
72 | ||
bc36ee62 | 73 | #ifndef OPENSSL_SYS_VMS |
0e05f545 RL |
74 | DSO_METHOD *DSO_METHOD_vms(void) |
75 | { | |
76 | return NULL; | |
77 | } | |
78 | #else | |
79 | #pragma message disable DOLLARID | |
80 | ||
51c8dc37 | 81 | static int vms_load(DSO *dso); |
0e05f545 RL |
82 | static int vms_unload(DSO *dso); |
83 | static void *vms_bind_var(DSO *dso, const char *symname); | |
84 | static DSO_FUNC_TYPE vms_bind_func(DSO *dso, const char *symname); | |
85 | #if 0 | |
86 | static int vms_unbind_var(DSO *dso, char *symname, void *symptr); | |
87 | static int vms_unbind_func(DSO *dso, char *symname, DSO_FUNC_TYPE symptr); | |
88 | static int vms_init(DSO *dso); | |
89 | static int vms_finish(DSO *dso); | |
0e05f545 | 90 | static long vms_ctrl(DSO *dso, int cmd, long larg, void *parg); |
75a382bd | 91 | #endif |
51c8dc37 | 92 | static char *vms_name_converter(DSO *dso); |
0e05f545 RL |
93 | |
94 | static DSO_METHOD dso_meth_vms = { | |
95 | "OpenSSL 'VMS' shared library method", | |
96 | vms_load, | |
97 | NULL, /* unload */ | |
98 | vms_bind_var, | |
99 | vms_bind_func, | |
100 | /* For now, "unbind" doesn't exist */ | |
101 | #if 0 | |
102 | NULL, /* unbind_var */ | |
103 | NULL, /* unbind_func */ | |
104 | #endif | |
75a382bd | 105 | NULL, /* ctrl */ |
51c8dc37 | 106 | vms_name_converter, |
0e05f545 RL |
107 | NULL, /* init */ |
108 | NULL /* finish */ | |
109 | }; | |
110 | ||
111 | /* On VMS, the only "handle" is the file name. LIB$FIND_IMAGE_SYMBOL depends | |
112 | * on the reference to the file name being the same for all calls regarding | |
113 | * one shared image, so we'll just store it in an instance of the following | |
114 | * structure and put a pointer to that instance in the meth_data stack. | |
115 | */ | |
116 | typedef struct dso_internal_st | |
117 | { | |
118 | /* This should contain the name only, no directory, | |
119 | * no extension, nothing but a name. */ | |
120 | struct dsc$descriptor_s filename_dsc; | |
121 | char filename[FILENAME_MAX+1]; | |
122 | /* This contains whatever is not in filename, if needed. | |
123 | * Normally not defined. */ | |
124 | struct dsc$descriptor_s imagename_dsc; | |
125 | char imagename[FILENAME_MAX+1]; | |
126 | } DSO_VMS_INTERNAL; | |
127 | ||
128 | ||
129 | DSO_METHOD *DSO_METHOD_vms(void) | |
130 | { | |
131 | return(&dso_meth_vms); | |
132 | } | |
133 | ||
51c8dc37 | 134 | static int vms_load(DSO *dso) |
0e05f545 | 135 | { |
856d456a RL |
136 | void *ptr = NULL; |
137 | /* See applicable comments in dso_dl.c */ | |
138 | char *filename = DSO_convert_filename(dso, NULL); | |
0e05f545 RL |
139 | DSO_VMS_INTERNAL *p; |
140 | const char *sp1, *sp2; /* Search result */ | |
141 | ||
856d456a RL |
142 | if(filename == NULL) |
143 | { | |
144 | DSOerr(DSO_F_DLFCN_LOAD,DSO_R_NO_FILENAME); | |
145 | goto err; | |
146 | } | |
147 | ||
0e05f545 RL |
148 | /* A file specification may look like this: |
149 | * | |
150 | * node::dev:[dir-spec]name.type;ver | |
151 | * | |
152 | * or (for compatibility with TOPS-20): | |
153 | * | |
154 | * node::dev:<dir-spec>name.type;ver | |
155 | * | |
156 | * and the dir-spec uses '.' as separator. Also, a dir-spec | |
157 | * may consist of several parts, with mixed use of [] and <>: | |
158 | * | |
159 | * [dir1.]<dir2> | |
160 | * | |
161 | * We need to split the file specification into the name and | |
162 | * the rest (both before and after the name itself). | |
163 | */ | |
164 | /* Start with trying to find the end of a dir-spec, and save the | |
165 | position of the byte after in sp1 */ | |
166 | sp1 = strrchr(filename, ']'); | |
167 | sp2 = strrchr(filename, '>'); | |
168 | if (sp1 == NULL) sp1 = sp2; | |
169 | if (sp2 != NULL && sp2 > sp1) sp1 = sp2; | |
170 | if (sp1 == NULL) sp1 = strrchr(filename, ':'); | |
171 | if (sp1 == NULL) | |
172 | sp1 = filename; | |
173 | else | |
174 | sp1++; /* The byte after the found character */ | |
175 | /* Now, let's see if there's a type, and save the position in sp2 */ | |
176 | sp2 = strchr(sp1, '.'); | |
177 | /* If we found it, that's where we'll cut. Otherwise, look for a | |
178 | version number and save the position in sp2 */ | |
179 | if (sp2 == NULL) sp2 = strchr(sp1, ';'); | |
180 | /* If there was still nothing to find, set sp2 to point at the end of | |
181 | the string */ | |
182 | if (sp2 == NULL) sp2 = sp1 + strlen(sp1); | |
183 | ||
184 | /* Check that we won't get buffer overflows */ | |
185 | if (sp2 - sp1 > FILENAME_MAX | |
186 | || (sp1 - filename) + strlen(sp2) > FILENAME_MAX) | |
187 | { | |
188 | DSOerr(DSO_F_VMS_LOAD,DSO_R_FILENAME_TOO_BIG); | |
856d456a | 189 | goto err; |
0e05f545 RL |
190 | } |
191 | ||
192 | p = (DSO_VMS_INTERNAL *)OPENSSL_malloc(sizeof(DSO_VMS_INTERNAL)); | |
193 | if(p == NULL) | |
194 | { | |
195 | DSOerr(DSO_F_VMS_LOAD,ERR_R_MALLOC_FAILURE); | |
856d456a | 196 | goto err; |
0e05f545 RL |
197 | } |
198 | ||
199 | strncpy(p->filename, sp1, sp2-sp1); | |
200 | p->filename[sp2-sp1] = '\0'; | |
201 | ||
202 | strncpy(p->imagename, filename, sp1-filename); | |
203 | p->imagename[sp1-filename] = '\0'; | |
204 | strcat(p->imagename, sp2); | |
205 | ||
206 | p->filename_dsc.dsc$w_length = strlen(p->filename); | |
207 | p->filename_dsc.dsc$b_dtype = DSC$K_DTYPE_T; | |
208 | p->filename_dsc.dsc$b_class = DSC$K_CLASS_S; | |
209 | p->filename_dsc.dsc$a_pointer = p->filename; | |
210 | p->imagename_dsc.dsc$w_length = strlen(p->imagename); | |
211 | p->imagename_dsc.dsc$b_dtype = DSC$K_DTYPE_T; | |
212 | p->imagename_dsc.dsc$b_class = DSC$K_CLASS_S; | |
213 | p->imagename_dsc.dsc$a_pointer = p->imagename; | |
214 | ||
215 | if(!sk_push(dso->meth_data, (char *)p)) | |
216 | { | |
217 | DSOerr(DSO_F_VMS_LOAD,DSO_R_STACK_ERROR); | |
856d456a | 218 | goto err; |
0e05f545 | 219 | } |
856d456a RL |
220 | |
221 | /* Success (for now, we lie. We actually do not know...) */ | |
222 | dso->loaded_filename = filename; | |
0e05f545 | 223 | return(1); |
856d456a RL |
224 | err: |
225 | /* Cleanup! */ | |
226 | if(p != NULL) | |
227 | OPENSSL_free(p); | |
228 | if(filename != NULL) | |
229 | OPENSSL_free(filename); | |
230 | return(0); | |
0e05f545 RL |
231 | } |
232 | ||
233 | /* Note that this doesn't actually unload the shared image, as there is no | |
234 | * such thing in VMS. Next time it get loaded again, a new copy will | |
235 | * actually be loaded. | |
236 | */ | |
237 | static int vms_unload(DSO *dso) | |
238 | { | |
239 | DSO_VMS_INTERNAL *p; | |
240 | if(dso == NULL) | |
241 | { | |
242 | DSOerr(DSO_F_VMS_UNLOAD,ERR_R_PASSED_NULL_PARAMETER); | |
243 | return(0); | |
244 | } | |
245 | if(sk_num(dso->meth_data) < 1) | |
246 | return(1); | |
247 | p = (DSO_VMS_INTERNAL *)sk_pop(dso->meth_data); | |
248 | if(p == NULL) | |
249 | { | |
250 | DSOerr(DSO_F_VMS_UNLOAD,DSO_R_NULL_HANDLE); | |
251 | return(0); | |
252 | } | |
253 | /* Cleanup */ | |
254 | OPENSSL_free(p); | |
255 | return(1); | |
256 | } | |
257 | ||
258 | /* We must do this in a separate function because of the way the exception | |
259 | handler works (it makes this function return */ | |
260 | static int do_find_symbol(DSO_VMS_INTERNAL *ptr, | |
261 | struct dsc$descriptor_s *symname_dsc, void **sym, | |
262 | unsigned long flags) | |
263 | { | |
264 | /* Make sure that signals are caught and returned instead of | |
265 | aborting the program. The exception handler gets unestablished | |
266 | automatically on return from this function. */ | |
267 | lib$establish(lib$sig_to_ret); | |
268 | ||
269 | if(ptr->imagename_dsc.dsc$w_length) | |
270 | return lib$find_image_symbol(&ptr->filename_dsc, | |
271 | symname_dsc, sym, | |
272 | &ptr->imagename_dsc, flags); | |
273 | else | |
274 | return lib$find_image_symbol(&ptr->filename_dsc, | |
275 | symname_dsc, sym, | |
276 | 0, flags); | |
277 | } | |
278 | ||
3aa477f6 | 279 | void vms_bind_sym(DSO *dso, const char *symname, void **sym) |
0e05f545 RL |
280 | { |
281 | DSO_VMS_INTERNAL *ptr; | |
0e05f545 RL |
282 | int status; |
283 | int flags = LIB$M_FIS_MIXEDCASE; | |
284 | struct dsc$descriptor_s symname_dsc; | |
3aa477f6 | 285 | *sym = NULL; |
0e05f545 RL |
286 | |
287 | symname_dsc.dsc$w_length = strlen(symname); | |
288 | symname_dsc.dsc$b_dtype = DSC$K_DTYPE_T; | |
289 | symname_dsc.dsc$b_class = DSC$K_CLASS_S; | |
290 | symname_dsc.dsc$a_pointer = (char *)symname; /* The cast is needed */ | |
291 | ||
292 | if((dso == NULL) || (symname == NULL)) | |
293 | { | |
294 | DSOerr(DSO_F_VMS_BIND_VAR,ERR_R_PASSED_NULL_PARAMETER); | |
3aa477f6 | 295 | return; |
0e05f545 RL |
296 | } |
297 | if(sk_num(dso->meth_data) < 1) | |
298 | { | |
299 | DSOerr(DSO_F_VMS_BIND_VAR,DSO_R_STACK_ERROR); | |
3aa477f6 | 300 | return; |
0e05f545 RL |
301 | } |
302 | ptr = (DSO_VMS_INTERNAL *)sk_value(dso->meth_data, | |
303 | sk_num(dso->meth_data) - 1); | |
304 | if(ptr == NULL) | |
305 | { | |
306 | DSOerr(DSO_F_VMS_BIND_VAR,DSO_R_NULL_HANDLE); | |
3aa477f6 | 307 | return; |
0e05f545 RL |
308 | } |
309 | ||
310 | if(dso->flags & DSO_FLAG_UPCASE_SYMBOL) flags = 0; | |
311 | ||
3aa477f6 | 312 | status = do_find_symbol(ptr, &symname_dsc, sym, flags); |
0e05f545 RL |
313 | |
314 | if(!$VMS_STATUS_SUCCESS(status)) | |
315 | { | |
316 | unsigned short length; | |
317 | char errstring[257]; | |
318 | struct dsc$descriptor_s errstring_dsc; | |
319 | ||
320 | errstring_dsc.dsc$w_length = sizeof(errstring); | |
321 | errstring_dsc.dsc$b_dtype = DSC$K_DTYPE_T; | |
322 | errstring_dsc.dsc$b_class = DSC$K_CLASS_S; | |
323 | errstring_dsc.dsc$a_pointer = errstring; | |
324 | ||
3aa477f6 RL |
325 | *sym = NULL; |
326 | ||
0e05f545 RL |
327 | status = sys$getmsg(status, &length, &errstring_dsc, 1, 0); |
328 | ||
329 | if (!$VMS_STATUS_SUCCESS(status)) | |
330 | lib$signal(status); /* This is really bad. Abort! */ | |
331 | else | |
332 | { | |
333 | errstring[length] = '\0'; | |
334 | ||
335 | DSOerr(DSO_F_VMS_BIND_VAR,DSO_R_SYM_FAILURE); | |
336 | if (ptr->imagename_dsc.dsc$w_length) | |
337 | ERR_add_error_data(9, | |
338 | "Symbol ", symname, | |
339 | " in ", ptr->filename, | |
340 | " (", ptr->imagename, ")", | |
341 | ": ", errstring); | |
342 | else | |
343 | ERR_add_error_data(6, | |
344 | "Symbol ", symname, | |
345 | " in ", ptr->filename, | |
346 | ": ", errstring); | |
347 | } | |
3aa477f6 | 348 | return; |
0e05f545 | 349 | } |
3aa477f6 | 350 | return; |
0e05f545 RL |
351 | } |
352 | ||
353 | static void *vms_bind_var(DSO *dso, const char *symname) | |
354 | { | |
3aa477f6 RL |
355 | void *sym = 0; |
356 | vms_bind_sym(dso, symname, &sym); | |
357 | return sym; | |
0e05f545 RL |
358 | } |
359 | ||
360 | static DSO_FUNC_TYPE vms_bind_func(DSO *dso, const char *symname) | |
361 | { | |
3aa477f6 | 362 | DSO_FUNC_TYPE sym = 0; |
4534fb1c | 363 | vms_bind_sym(dso, symname, (void **)&sym); |
3aa477f6 | 364 | return sym; |
0e05f545 RL |
365 | } |
366 | ||
856d456a | 367 | static char *vms_name_converter(DSO *dso, const char *filename) |
51c8dc37 | 368 | { |
856d456a | 369 | return(filename); |
51c8dc37 GT |
370 | } |
371 | ||
bc36ee62 | 372 | #endif /* OPENSSL_SYS_VMS */ |