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f2182a4e | 1 | /* |
fecb3aae | 2 | * Copyright 2019-2022 The OpenSSL Project Authors. All Rights Reserved. |
f2182a4e RL |
3 | * |
4 | * Licensed under the Apache License 2.0 (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 | |
8 | */ | |
9 | ||
10 | #include "internal/namemap.h" | |
11 | #include <openssl/lhash.h> | |
285aa80e | 12 | #include "crypto/lhash.h" /* ossl_lh_strcasehash */ |
c720fc35 | 13 | #include "internal/tsan_assist.h" |
05aed12f | 14 | #include "internal/sizes.h" |
927d0566 | 15 | #include "crypto/context.h" |
f2182a4e | 16 | |
651d4418 RL |
17 | /*- |
18 | * The namenum entry | |
19 | * ================= | |
20 | */ | |
f2182a4e | 21 | typedef struct { |
651d4418 | 22 | char *name; |
f2182a4e | 23 | int number; |
651d4418 | 24 | } NAMENUM_ENTRY; |
f2182a4e | 25 | |
5317b6ee | 26 | DEFINE_LHASH_OF_EX(NAMENUM_ENTRY); |
f2182a4e | 27 | |
651d4418 RL |
28 | /*- |
29 | * The namemap itself | |
30 | * ================== | |
31 | */ | |
f2182a4e RL |
32 | |
33 | struct ossl_namemap_st { | |
34 | /* Flags */ | |
35 | unsigned int stored:1; /* If 1, it's stored in a library context */ | |
36 | ||
37 | CRYPTO_RWLOCK *lock; | |
651d4418 | 38 | LHASH_OF(NAMENUM_ENTRY) *namenum; /* Name->number mapping */ |
c720fc35 | 39 | |
d8ed9e4a | 40 | TSAN_QUALIFIER int max_number; /* Current max number */ |
f2182a4e RL |
41 | }; |
42 | ||
43 | /* LHASH callbacks */ | |
44 | ||
651d4418 | 45 | static unsigned long namenum_hash(const NAMENUM_ENTRY *n) |
f2182a4e | 46 | { |
285aa80e | 47 | return ossl_lh_strcasehash(n->name); |
f2182a4e RL |
48 | } |
49 | ||
651d4418 | 50 | static int namenum_cmp(const NAMENUM_ENTRY *a, const NAMENUM_ENTRY *b) |
f2182a4e | 51 | { |
fba140c7 | 52 | return OPENSSL_strcasecmp(a->name, b->name); |
f2182a4e RL |
53 | } |
54 | ||
651d4418 | 55 | static void namenum_free(NAMENUM_ENTRY *n) |
f2182a4e | 56 | { |
651d4418 RL |
57 | if (n != NULL) |
58 | OPENSSL_free(n->name); | |
f2182a4e RL |
59 | OPENSSL_free(n); |
60 | } | |
61 | ||
b4250010 | 62 | /* OSSL_LIB_CTX_METHOD functions for a namemap stored in a library context */ |
f2182a4e | 63 | |
927d0566 | 64 | void *ossl_stored_namemap_new(OSSL_LIB_CTX *libctx) |
f2182a4e RL |
65 | { |
66 | OSSL_NAMEMAP *namemap = ossl_namemap_new(); | |
67 | ||
68 | if (namemap != NULL) | |
69 | namemap->stored = 1; | |
70 | ||
71 | return namemap; | |
72 | } | |
73 | ||
927d0566 | 74 | void ossl_stored_namemap_free(void *vnamemap) |
f2182a4e RL |
75 | { |
76 | OSSL_NAMEMAP *namemap = vnamemap; | |
77 | ||
bd65afdb P |
78 | if (namemap != NULL) { |
79 | /* Pretend it isn't stored, or ossl_namemap_free() will do nothing */ | |
80 | namemap->stored = 0; | |
81 | ossl_namemap_free(namemap); | |
82 | } | |
f2182a4e RL |
83 | } |
84 | ||
651d4418 RL |
85 | /*- |
86 | * API functions | |
87 | * ============= | |
88 | */ | |
f2182a4e | 89 | |
6a835fcf RL |
90 | int ossl_namemap_empty(OSSL_NAMEMAP *namemap) |
91 | { | |
d8ed9e4a | 92 | #ifdef TSAN_REQUIRES_LOCKING |
c720fc35 P |
93 | /* No TSAN support */ |
94 | int rv; | |
95 | ||
96 | if (namemap == NULL) | |
97 | return 1; | |
6a835fcf | 98 | |
cd3f8c1b RS |
99 | if (!CRYPTO_THREAD_read_lock(namemap->lock)) |
100 | return -1; | |
c720fc35 | 101 | rv = namemap->max_number == 0; |
6a835fcf | 102 | CRYPTO_THREAD_unlock(namemap->lock); |
6a835fcf | 103 | return rv; |
d8ed9e4a P |
104 | #else |
105 | /* Have TSAN support */ | |
106 | return namemap == NULL || tsan_load(&namemap->max_number) == 0; | |
c720fc35 | 107 | #endif |
6a835fcf RL |
108 | } |
109 | ||
651d4418 RL |
110 | typedef struct doall_names_data_st { |
111 | int number; | |
d84f5515 MC |
112 | const char **names; |
113 | int found; | |
651d4418 | 114 | } DOALL_NAMES_DATA; |
f2182a4e | 115 | |
651d4418 | 116 | static void do_name(const NAMENUM_ENTRY *namenum, DOALL_NAMES_DATA *data) |
f2182a4e | 117 | { |
651d4418 | 118 | if (namenum->number == data->number) |
d84f5515 | 119 | data->names[data->found++] = namenum->name; |
651d4418 | 120 | } |
f2182a4e | 121 | |
651d4418 | 122 | IMPLEMENT_LHASH_DOALL_ARG_CONST(NAMENUM_ENTRY, DOALL_NAMES_DATA); |
f2182a4e | 123 | |
d84f5515 MC |
124 | /* |
125 | * Call the callback for all names in the namemap with the given number. | |
126 | * A return value 1 means that the callback was called for all names. A | |
127 | * return value of 0 means that the callback was not called for any names. | |
128 | */ | |
129 | int ossl_namemap_doall_names(const OSSL_NAMEMAP *namemap, int number, | |
130 | void (*fn)(const char *name, void *data), | |
131 | void *data) | |
651d4418 RL |
132 | { |
133 | DOALL_NAMES_DATA cbdata; | |
d84f5515 MC |
134 | size_t num_names; |
135 | int i; | |
f2182a4e | 136 | |
651d4418 | 137 | cbdata.number = number; |
d84f5515 MC |
138 | cbdata.found = 0; |
139 | ||
140 | /* | |
141 | * We collect all the names first under a read lock. Subsequently we call | |
142 | * the user function, so that we're not holding the read lock when in user | |
143 | * code. This could lead to deadlocks. | |
144 | */ | |
cd3f8c1b RS |
145 | if (!CRYPTO_THREAD_read_lock(namemap->lock)) |
146 | return 0; | |
d84f5515 | 147 | |
cd3f8c1b | 148 | num_names = lh_NAMENUM_ENTRY_num_items(namemap->namenum); |
d84f5515 MC |
149 | if (num_names == 0) { |
150 | CRYPTO_THREAD_unlock(namemap->lock); | |
151 | return 0; | |
152 | } | |
153 | cbdata.names = OPENSSL_malloc(sizeof(*cbdata.names) * num_names); | |
154 | if (cbdata.names == NULL) { | |
155 | CRYPTO_THREAD_unlock(namemap->lock); | |
156 | return 0; | |
157 | } | |
651d4418 RL |
158 | lh_NAMENUM_ENTRY_doall_DOALL_NAMES_DATA(namemap->namenum, do_name, |
159 | &cbdata); | |
f2182a4e | 160 | CRYPTO_THREAD_unlock(namemap->lock); |
d84f5515 MC |
161 | |
162 | for (i = 0; i < cbdata.found; i++) | |
163 | fn(cbdata.names[i], data); | |
164 | ||
165 | OPENSSL_free(cbdata.names); | |
166 | return 1; | |
f2182a4e RL |
167 | } |
168 | ||
b00cf0e7 | 169 | /* This function is not thread safe, the namemap must be locked */ |
dab5098e TM |
170 | static int namemap_name2num(const OSSL_NAMEMAP *namemap, |
171 | const char *name) | |
79410c5f P |
172 | { |
173 | NAMENUM_ENTRY *namenum_entry, namenum_tmpl; | |
174 | ||
dab5098e | 175 | namenum_tmpl.name = (char *)name; |
79410c5f P |
176 | namenum_tmpl.number = 0; |
177 | namenum_entry = | |
178 | lh_NAMENUM_ENTRY_retrieve(namemap->namenum, &namenum_tmpl); | |
79410c5f P |
179 | return namenum_entry != NULL ? namenum_entry->number : 0; |
180 | } | |
181 | ||
dab5098e | 182 | int ossl_namemap_name2num(const OSSL_NAMEMAP *namemap, const char *name) |
f2182a4e | 183 | { |
79410c5f | 184 | int number; |
f2182a4e | 185 | |
f844f9eb | 186 | #ifndef FIPS_MODULE |
f2182a4e RL |
187 | if (namemap == NULL) |
188 | namemap = ossl_namemap_stored(NULL); | |
189 | #endif | |
190 | ||
191 | if (namemap == NULL) | |
192 | return 0; | |
193 | ||
cd3f8c1b RS |
194 | if (!CRYPTO_THREAD_read_lock(namemap->lock)) |
195 | return 0; | |
dab5098e | 196 | number = namemap_name2num(namemap, name); |
f2182a4e RL |
197 | CRYPTO_THREAD_unlock(namemap->lock); |
198 | ||
651d4418 | 199 | return number; |
f2182a4e RL |
200 | } |
201 | ||
dab5098e TM |
202 | int ossl_namemap_name2num_n(const OSSL_NAMEMAP *namemap, |
203 | const char *name, size_t name_len) | |
695d195b | 204 | { |
dab5098e TM |
205 | char *tmp; |
206 | int ret; | |
207 | ||
208 | if (name == NULL || (tmp = OPENSSL_strndup(name, name_len)) == NULL) | |
695d195b RL |
209 | return 0; |
210 | ||
dab5098e TM |
211 | ret = ossl_namemap_name2num(namemap, tmp); |
212 | OPENSSL_free(tmp); | |
213 | return ret; | |
695d195b RL |
214 | } |
215 | ||
f7c16d48 RL |
216 | struct num2name_data_st { |
217 | size_t idx; /* Countdown */ | |
218 | const char *name; /* Result */ | |
219 | }; | |
220 | ||
221 | static void do_num2name(const char *name, void *vdata) | |
222 | { | |
223 | struct num2name_data_st *data = vdata; | |
224 | ||
225 | if (data->idx > 0) | |
226 | data->idx--; | |
227 | else if (data->name == NULL) | |
228 | data->name = name; | |
229 | } | |
230 | ||
231 | const char *ossl_namemap_num2name(const OSSL_NAMEMAP *namemap, int number, | |
232 | size_t idx) | |
233 | { | |
234 | struct num2name_data_st data; | |
235 | ||
236 | data.idx = idx; | |
237 | data.name = NULL; | |
d84f5515 MC |
238 | if (!ossl_namemap_doall_names(namemap, number, do_num2name, &data)) |
239 | return NULL; | |
f7c16d48 RL |
240 | return data.name; |
241 | } | |
242 | ||
b00cf0e7 TM |
243 | /* This function is not thread safe, the namemap must be locked */ |
244 | static int namemap_add_name(OSSL_NAMEMAP *namemap, int number, | |
245 | const char *name) | |
f2182a4e | 246 | { |
651d4418 RL |
247 | NAMENUM_ENTRY *namenum = NULL; |
248 | int tmp_number; | |
f2182a4e | 249 | |
79410c5f | 250 | /* If it already exists, we don't add it */ |
b00cf0e7 | 251 | if ((tmp_number = namemap_name2num(namemap, name)) != 0) |
79410c5f | 252 | return tmp_number; |
f2182a4e | 253 | |
dab5098e | 254 | if ((namenum = OPENSSL_zalloc(sizeof(*namenum))) == NULL) |
b00cf0e7 TM |
255 | return 0; |
256 | ||
257 | if ((namenum->name = OPENSSL_strdup(name)) == NULL) | |
f2182a4e RL |
258 | goto err; |
259 | ||
d8ed9e4a | 260 | /* The tsan_counter use here is safe since we're under lock */ |
79410c5f | 261 | namenum->number = |
c720fc35 | 262 | number != 0 ? number : 1 + tsan_counter(&namemap->max_number); |
651d4418 RL |
263 | (void)lh_NAMENUM_ENTRY_insert(namemap->namenum, namenum); |
264 | ||
265 | if (lh_NAMENUM_ENTRY_error(namemap->namenum)) | |
f2182a4e | 266 | goto err; |
79410c5f | 267 | return namenum->number; |
f2182a4e RL |
268 | |
269 | err: | |
b00cf0e7 | 270 | namenum_free(namenum); |
79410c5f P |
271 | return 0; |
272 | } | |
651d4418 | 273 | |
b00cf0e7 TM |
274 | int ossl_namemap_add_name(OSSL_NAMEMAP *namemap, int number, |
275 | const char *name) | |
79410c5f P |
276 | { |
277 | int tmp_number; | |
278 | ||
279 | #ifndef FIPS_MODULE | |
280 | if (namemap == NULL) | |
281 | namemap = ossl_namemap_stored(NULL); | |
282 | #endif | |
283 | ||
b00cf0e7 | 284 | if (name == NULL || *name == 0 || namemap == NULL) |
79410c5f P |
285 | return 0; |
286 | ||
cd3f8c1b RS |
287 | if (!CRYPTO_THREAD_write_lock(namemap->lock)) |
288 | return 0; | |
b00cf0e7 | 289 | tmp_number = namemap_add_name(namemap, number, name); |
651d4418 | 290 | CRYPTO_THREAD_unlock(namemap->lock); |
79410c5f | 291 | return tmp_number; |
f2182a4e | 292 | } |
695d195b | 293 | |
3d83c735 RL |
294 | int ossl_namemap_add_names(OSSL_NAMEMAP *namemap, int number, |
295 | const char *names, const char separator) | |
296 | { | |
b00cf0e7 | 297 | char *tmp, *p, *q, *endp; |
3d83c735 RL |
298 | |
299 | /* Check that we have a namemap */ | |
300 | if (!ossl_assert(namemap != NULL)) { | |
301 | ERR_raise(ERR_LIB_CRYPTO, ERR_R_PASSED_NULL_PARAMETER); | |
302 | return 0; | |
303 | } | |
304 | ||
b00cf0e7 | 305 | if ((tmp = OPENSSL_strdup(names)) == NULL) |
cd3f8c1b | 306 | return 0; |
b00cf0e7 TM |
307 | |
308 | if (!CRYPTO_THREAD_write_lock(namemap->lock)) { | |
309 | OPENSSL_free(tmp); | |
310 | return 0; | |
311 | } | |
3d83c735 RL |
312 | /* |
313 | * Check that no name is an empty string, and that all names have at | |
314 | * most one numeric identity together. | |
315 | */ | |
b00cf0e7 | 316 | for (p = tmp; *p != '\0'; p = q) { |
3d83c735 | 317 | int this_number; |
b00cf0e7 | 318 | size_t l; |
3d83c735 | 319 | |
dab5098e | 320 | if ((q = strchr(p, separator)) == NULL) { |
3d83c735 | 321 | l = strlen(p); /* offset to \0 */ |
b00cf0e7 | 322 | q = p + l; |
dab5098e | 323 | } else { |
3d83c735 | 324 | l = q - p; /* offset to the next separator */ |
b00cf0e7 | 325 | *q++ = '\0'; |
dab5098e | 326 | } |
3d83c735 | 327 | |
b00cf0e7 | 328 | if (*p == '\0') { |
3d83c735 | 329 | ERR_raise(ERR_LIB_CRYPTO, CRYPTO_R_BAD_ALGORITHM_NAME); |
b00cf0e7 TM |
330 | number = 0; |
331 | goto end; | |
3d83c735 | 332 | } |
b00cf0e7 TM |
333 | |
334 | this_number = namemap_name2num(namemap, p); | |
335 | ||
3d83c735 RL |
336 | if (number == 0) { |
337 | number = this_number; | |
338 | } else if (this_number != 0 && this_number != number) { | |
339 | ERR_raise_data(ERR_LIB_CRYPTO, CRYPTO_R_CONFLICTING_NAMES, | |
b00cf0e7 TM |
340 | "\"%s\" has an existing different identity %d (from \"%s\")", |
341 | p, this_number, names); | |
342 | number = 0; | |
343 | goto end; | |
3d83c735 RL |
344 | } |
345 | } | |
b00cf0e7 | 346 | endp = p; |
3d83c735 RL |
347 | |
348 | /* Now that we have checked, register all names */ | |
b00cf0e7 | 349 | for (p = tmp; p < endp; p = q) { |
3d83c735 RL |
350 | int this_number; |
351 | ||
b00cf0e7 | 352 | q = p + strlen(p) + 1; |
3d83c735 | 353 | |
b00cf0e7 | 354 | this_number = namemap_add_name(namemap, number, p); |
3d83c735 RL |
355 | if (number == 0) { |
356 | number = this_number; | |
357 | } else if (this_number != number) { | |
e4a1d023 | 358 | ERR_raise_data(ERR_LIB_CRYPTO, ERR_R_INTERNAL_ERROR, |
3d83c735 RL |
359 | "Got number %d when expecting %d", |
360 | this_number, number); | |
b00cf0e7 TM |
361 | number = 0; |
362 | goto end; | |
3d83c735 RL |
363 | } |
364 | } | |
365 | ||
b00cf0e7 | 366 | end: |
79410c5f | 367 | CRYPTO_THREAD_unlock(namemap->lock); |
b00cf0e7 | 368 | OPENSSL_free(tmp); |
3d83c735 | 369 | return number; |
695d195b | 370 | } |
437ad983 RL |
371 | |
372 | /*- | |
373 | * Pre-population | |
374 | * ============== | |
375 | */ | |
376 | ||
f844f9eb | 377 | #ifndef FIPS_MODULE |
437ad983 RL |
378 | #include <openssl/evp.h> |
379 | ||
380 | /* Creates an initial namemap with names found in the legacy method db */ | |
c230e938 RL |
381 | static void get_legacy_evp_names(int base_nid, int nid, const char *pem_name, |
382 | void *arg) | |
437ad983 | 383 | { |
c230e938 RL |
384 | int num = 0; |
385 | ASN1_OBJECT *obj; | |
437ad983 | 386 | |
c230e938 RL |
387 | if (base_nid != NID_undef) { |
388 | num = ossl_namemap_add_name(arg, num, OBJ_nid2sn(base_nid)); | |
389 | num = ossl_namemap_add_name(arg, num, OBJ_nid2ln(base_nid)); | |
437ad983 | 390 | } |
05aed12f | 391 | |
c230e938 RL |
392 | if (nid != NID_undef) { |
393 | num = ossl_namemap_add_name(arg, num, OBJ_nid2sn(nid)); | |
394 | num = ossl_namemap_add_name(arg, num, OBJ_nid2ln(nid)); | |
395 | if ((obj = OBJ_nid2obj(nid)) != NULL) { | |
396 | char txtoid[OSSL_MAX_NAME_SIZE]; | |
05aed12f | 397 | |
2349d7ba | 398 | if (OBJ_obj2txt(txtoid, sizeof(txtoid), obj, 1) > 0) |
c230e938 RL |
399 | num = ossl_namemap_add_name(arg, num, txtoid); |
400 | } | |
05aed12f | 401 | } |
c230e938 RL |
402 | if (pem_name != NULL) |
403 | num = ossl_namemap_add_name(arg, num, pem_name); | |
437ad983 RL |
404 | } |
405 | ||
406 | static void get_legacy_cipher_names(const OBJ_NAME *on, void *arg) | |
407 | { | |
408 | const EVP_CIPHER *cipher = (void *)OBJ_NAME_get(on->name, on->type); | |
409 | ||
7a85dd46 P |
410 | if (cipher != NULL) |
411 | get_legacy_evp_names(NID_undef, EVP_CIPHER_get_type(cipher), NULL, arg); | |
437ad983 RL |
412 | } |
413 | ||
414 | static void get_legacy_md_names(const OBJ_NAME *on, void *arg) | |
415 | { | |
416 | const EVP_MD *md = (void *)OBJ_NAME_get(on->name, on->type); | |
01ba6c8e | 417 | |
7a85dd46 P |
418 | if (md != NULL) |
419 | get_legacy_evp_names(0, EVP_MD_get_type(md), NULL, arg); | |
05aed12f RL |
420 | } |
421 | ||
422 | static void get_legacy_pkey_meth_names(const EVP_PKEY_ASN1_METHOD *ameth, | |
423 | void *arg) | |
424 | { | |
425 | int nid = 0, base_nid = 0, flags = 0; | |
c230e938 | 426 | const char *pem_name = NULL; |
05aed12f | 427 | |
c230e938 | 428 | EVP_PKEY_asn1_get0_info(&nid, &base_nid, &flags, NULL, &pem_name, ameth); |
05aed12f RL |
429 | if (nid != NID_undef) { |
430 | if ((flags & ASN1_PKEY_ALIAS) == 0) { | |
c230e938 RL |
431 | switch (nid) { |
432 | case EVP_PKEY_DHX: | |
433 | /* We know that the name "DHX" is used too */ | |
434 | get_legacy_evp_names(0, nid, "DHX", arg); | |
435 | /* FALLTHRU */ | |
436 | default: | |
437 | get_legacy_evp_names(0, nid, pem_name, arg); | |
438 | } | |
05aed12f RL |
439 | } else { |
440 | /* | |
441 | * Treat aliases carefully, some of them are undesirable, or | |
442 | * should not be treated as such for providers. | |
443 | */ | |
444 | ||
445 | switch (nid) { | |
446 | case EVP_PKEY_SM2: | |
05aed12f RL |
447 | /* |
448 | * SM2 is a separate keytype with providers, not an alias for | |
449 | * EC. | |
05aed12f | 450 | */ |
c230e938 | 451 | get_legacy_evp_names(0, nid, pem_name, arg); |
05aed12f RL |
452 | break; |
453 | default: | |
454 | /* Use the short name of the base nid as the common reference */ | |
c230e938 | 455 | get_legacy_evp_names(base_nid, nid, pem_name, arg); |
05aed12f RL |
456 | } |
457 | } | |
458 | } | |
437ad983 RL |
459 | } |
460 | #endif | |
461 | ||
462 | /*- | |
463 | * Constructors / destructors | |
464 | * ========================== | |
465 | */ | |
466 | ||
b4250010 | 467 | OSSL_NAMEMAP *ossl_namemap_stored(OSSL_LIB_CTX *libctx) |
437ad983 | 468 | { |
cd3f8c1b RS |
469 | #ifndef FIPS_MODULE |
470 | int nms; | |
471 | #endif | |
437ad983 | 472 | OSSL_NAMEMAP *namemap = |
927d0566 | 473 | ossl_lib_ctx_get_data(libctx, OSSL_LIB_CTX_NAMEMAP_INDEX); |
437ad983 | 474 | |
cd3f8c1b RS |
475 | if (namemap == NULL) |
476 | return NULL; | |
477 | ||
f844f9eb | 478 | #ifndef FIPS_MODULE |
cd3f8c1b RS |
479 | nms = ossl_namemap_empty(namemap); |
480 | if (nms < 0) { | |
481 | /* | |
482 | * Could not get lock to make the count, so maybe internal objects | |
483 | * weren't added. This seems safest. | |
484 | */ | |
485 | return NULL; | |
486 | } | |
487 | if (nms == 1) { | |
05aed12f RL |
488 | int i, end; |
489 | ||
437ad983 RL |
490 | /* Before pilfering, we make sure the legacy database is populated */ |
491 | OPENSSL_init_crypto(OPENSSL_INIT_ADD_ALL_CIPHERS | |
492 | | OPENSSL_INIT_ADD_ALL_DIGESTS, NULL); | |
493 | ||
494 | OBJ_NAME_do_all(OBJ_NAME_TYPE_CIPHER_METH, | |
495 | get_legacy_cipher_names, namemap); | |
496 | OBJ_NAME_do_all(OBJ_NAME_TYPE_MD_METH, | |
497 | get_legacy_md_names, namemap); | |
05aed12f RL |
498 | |
499 | /* We also pilfer data from the legacy EVP_PKEY_ASN1_METHODs */ | |
500 | for (i = 0, end = EVP_PKEY_asn1_get_count(); i < end; i++) | |
501 | get_legacy_pkey_meth_names(EVP_PKEY_asn1_get0(i), namemap); | |
437ad983 RL |
502 | } |
503 | #endif | |
504 | ||
505 | return namemap; | |
506 | } | |
507 | ||
508 | OSSL_NAMEMAP *ossl_namemap_new(void) | |
509 | { | |
510 | OSSL_NAMEMAP *namemap; | |
511 | ||
512 | if ((namemap = OPENSSL_zalloc(sizeof(*namemap))) != NULL | |
513 | && (namemap->lock = CRYPTO_THREAD_lock_new()) != NULL | |
514 | && (namemap->namenum = | |
515 | lh_NAMENUM_ENTRY_new(namenum_hash, namenum_cmp)) != NULL) | |
516 | return namemap; | |
517 | ||
518 | ossl_namemap_free(namemap); | |
519 | return NULL; | |
520 | } | |
521 | ||
522 | void ossl_namemap_free(OSSL_NAMEMAP *namemap) | |
523 | { | |
524 | if (namemap == NULL || namemap->stored) | |
525 | return; | |
526 | ||
527 | lh_NAMENUM_ENTRY_doall(namemap->namenum, namenum_free); | |
528 | lh_NAMENUM_ENTRY_free(namemap->namenum); | |
529 | ||
530 | CRYPTO_THREAD_lock_free(namemap->lock); | |
531 | OPENSSL_free(namemap); | |
532 | } |