2 * Copyright 2019 The OpenSSL Project Authors. All Rights Reserved.
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
12 #include <openssl/opensslconf.h>
13 #include <openssl/core.h>
14 #include <openssl/core_numbers.h>
15 #include <openssl/core_names.h>
16 #include <openssl/params.h>
17 #include "prov/implementations.h"
19 /* Functions provided by the core */
20 static OSSL_core_gettable_params_fn
*c_gettable_params
= NULL
;
21 static OSSL_core_get_params_fn
*c_get_params
= NULL
;
23 /* Parameters we provide to the core */
24 static const OSSL_PARAM deflt_param_types
[] = {
25 OSSL_PARAM_DEFN(OSSL_PROV_PARAM_NAME
, OSSL_PARAM_UTF8_PTR
, NULL
, 0),
26 OSSL_PARAM_DEFN(OSSL_PROV_PARAM_VERSION
, OSSL_PARAM_UTF8_PTR
, NULL
, 0),
27 OSSL_PARAM_DEFN(OSSL_PROV_PARAM_BUILDINFO
, OSSL_PARAM_UTF8_PTR
, NULL
, 0),
31 static const OSSL_PARAM
*deflt_gettable_params(const OSSL_PROVIDER
*prov
)
33 return deflt_param_types
;
36 static int deflt_get_params(const OSSL_PROVIDER
*prov
, OSSL_PARAM params
[])
40 p
= OSSL_PARAM_locate(params
, OSSL_PROV_PARAM_NAME
);
41 if (p
!= NULL
&& !OSSL_PARAM_set_utf8_ptr(p
, "OpenSSL Default Provider"))
43 p
= OSSL_PARAM_locate(params
, OSSL_PROV_PARAM_VERSION
);
44 if (p
!= NULL
&& !OSSL_PARAM_set_utf8_ptr(p
, OPENSSL_VERSION_STR
))
46 p
= OSSL_PARAM_locate(params
, OSSL_PROV_PARAM_BUILDINFO
);
47 if (p
!= NULL
&& !OSSL_PARAM_set_utf8_ptr(p
, OPENSSL_FULL_VERSION_STR
))
54 * For the algorithm names, we use the following formula for our primary
57 * ALGNAME[VERSION?][-SUBNAME[VERSION?]?][-SIZE?][-MODE?]
59 * VERSION is only present if there are multiple versions of
60 * an alg (MD2, MD4, MD5). It may be omitted if there is only
61 * one version (if a subsequent version is released in the future,
62 * we can always change the canonical name, and add the old name
65 * SUBNAME may be present where we are combining multiple
66 * algorithms together, e.g. MD5-SHA1.
68 * SIZE is only present if multiple versions of an algorithm exist
69 * with different sizes (e.g. AES-128-CBC, AES-256-CBC)
71 * MODE is only present where applicable.
73 * We add diverse other names where applicable, such as the names that
74 * NIST uses, or that are used for ASN.1 OBJECT IDENTIFIERs, or names
75 * we have used historically.
77 static const OSSL_ALGORITHM deflt_digests
[] = {
78 /* Our primary name:NIST name[:our older names] */
79 { "SHA1:SHA-1", "default=yes", sha1_functions
},
80 { "SHA2-224:SHA-224:SHA224", "default=yes", sha224_functions
},
81 { "SHA2-256:SHA-256:SHA256", "default=yes", sha256_functions
},
82 { "SHA2-384:SHA-384:SHA384", "default=yes", sha384_functions
},
83 { "SHA2-512:SHA-512:SHA512", "default=yes", sha512_functions
},
84 { "SHA2-512/224:SHA-512/224:SHA512-224", "default=yes",
85 sha512_224_functions
},
86 { "SHA2-512/256:SHA-512/256:SHA512-256", "default=yes",
87 sha512_256_functions
},
89 /* We agree with NIST here, so one name only */
90 { "SHA3-224", "default=yes", sha3_224_functions
},
91 { "SHA3-256", "default=yes", sha3_256_functions
},
92 { "SHA3-384", "default=yes", sha3_384_functions
},
93 { "SHA3-512", "default=yes", sha3_512_functions
},
96 * KECCAK_KMAC128 and KECCAK_KMAC256 as hashes are mostly useful for
97 * the KMAC128 and KMAC256.
99 { "KECCAK_KMAC128", "default=yes", keccak_kmac_128_functions
},
100 { "KECCAK_KMAC256", "default=yes", keccak_kmac_256_functions
},
102 /* Our primary name:NIST name */
103 { "SHAKE-128:SHAKE128", "default=yes", shake_128_functions
},
104 { "SHAKE-256:SHAKE256", "default=yes", shake_256_functions
},
106 #ifndef OPENSSL_NO_BLAKE2
108 * https://blake2.net/ doesn't specify size variants,
109 * but mentions that Bouncy Castle uses the names
110 * BLAKE2b-160, BLAKE2b-256, BLAKE2b-384, and BLAKE2b-512
111 * If we assume that "2b" and "2s" are versions, that pattern
112 * fits with ours. We also add our historical names.
114 { "BLAKE2s-256:BLAKE2s256", "default=yes", blake2s256_functions
},
115 { "BLAKE2b-512:BLAKE2b512", "default=yes", blake2b512_functions
},
116 #endif /* OPENSSL_NO_BLAKE2 */
118 #ifndef OPENSSL_NO_SM3
119 { "SM3", "default=yes", sm3_functions
},
120 #endif /* OPENSSL_NO_SM3 */
122 #ifndef OPENSSL_NO_MD5
123 { "MD5", "default=yes", md5_functions
},
124 { "MD5-SHA1", "default=yes", md5_sha1_functions
},
125 #endif /* OPENSSL_NO_MD5 */
130 static const OSSL_ALGORITHM deflt_ciphers
[] = {
131 { "AES-256-ECB", "default=yes", aes256ecb_functions
},
132 { "AES-192-ECB", "default=yes", aes192ecb_functions
},
133 { "AES-128-ECB", "default=yes", aes128ecb_functions
},
134 { "AES-256-CBC", "default=yes", aes256cbc_functions
},
135 { "AES-192-CBC", "default=yes", aes192cbc_functions
},
136 { "AES-128-CBC", "default=yes", aes128cbc_functions
},
137 { "AES-256-OFB", "default=yes", aes256ofb_functions
},
138 { "AES-192-OFB", "default=yes", aes192ofb_functions
},
139 { "AES-128-OFB", "default=yes", aes128ofb_functions
},
140 { "AES-256-CFB", "default=yes", aes256cfb_functions
},
141 { "AES-192-CFB", "default=yes", aes192cfb_functions
},
142 { "AES-128-CFB", "default=yes", aes128cfb_functions
},
143 { "AES-256-CFB1", "default=yes", aes256cfb1_functions
},
144 { "AES-192-CFB1", "default=yes", aes192cfb1_functions
},
145 { "AES-128-CFB1", "default=yes", aes128cfb1_functions
},
146 { "AES-256-CFB8", "default=yes", aes256cfb8_functions
},
147 { "AES-192-CFB8", "default=yes", aes192cfb8_functions
},
148 { "AES-128-CFB8", "default=yes", aes128cfb8_functions
},
149 { "AES-256-CTR", "default=yes", aes256ctr_functions
},
150 { "AES-192-CTR", "default=yes", aes192ctr_functions
},
151 { "AES-128-CTR", "default=yes", aes128ctr_functions
},
152 { "AES-256-XTS", "default=yes", aes256xts_functions
},
153 { "AES-128-XTS", "default=yes", aes128xts_functions
},
154 #ifndef OPENSSL_NO_OCB
155 { "AES-256-OCB", "default=yes", aes256ocb_functions
},
156 { "AES-192-OCB", "default=yes", aes192ocb_functions
},
157 { "AES-128-OCB", "default=yes", aes128ocb_functions
},
158 #endif /* OPENSSL_NO_OCB */
159 #ifndef OPENSSL_NO_SIV
160 { "AES-128-SIV", "default=yes", aes128siv_functions
},
161 { "AES-192-SIV", "default=yes", aes192siv_functions
},
162 { "AES-256-SIV", "default=yes", aes256siv_functions
},
163 #endif /* OPENSSL_NO_SIV */
164 { "AES-256-GCM:id-aes256-GCM", "default=yes", aes256gcm_functions
},
165 { "AES-192-GCM:id-aes192-GCM", "default=yes", aes192gcm_functions
},
166 { "AES-128-GCM:id-aes128-GCM", "default=yes", aes128gcm_functions
},
167 { "AES-256-CCM:id-aes256-CCM", "default=yes", aes256ccm_functions
},
168 { "AES-192-CCM:id-aes192-CCM", "default=yes", aes192ccm_functions
},
169 { "AES-128-CCM:id-aes128-CCM", "default=yes", aes128ccm_functions
},
170 { "AES-256-WRAP:id-aes256-wrap:AES256-WRAP", "default=yes",
171 aes256wrap_functions
},
172 { "AES-192-WRAP:id-aes192-wrap:AES192-WRAP", "default=yes",
173 aes192wrap_functions
},
174 { "AES-128-WRAP:id-aes128-wrap:AES128-WRAP", "default=yes",
175 aes128wrap_functions
},
176 { "AES-256-WRAP-PAD:id-aes256-wrap-pad:AES256-WRAP-PAD", "default=yes",
177 aes256wrappad_functions
},
178 { "AES-192-WRAP-PAD:id-aes192-wrap-pad:AES192-WRAP-PAD", "default=yes",
179 aes192wrappad_functions
},
180 { "AES-128-WRAP-PAD:id-aes128-wrap-pad:AES128-WRAP-PAD", "default=yes",
181 aes128wrappad_functions
},
182 #ifndef OPENSSL_NO_ARIA
183 { "ARIA-256-GCM", "default=yes", aria256gcm_functions
},
184 { "ARIA-192-GCM", "default=yes", aria192gcm_functions
},
185 { "ARIA-128-GCM", "default=yes", aria128gcm_functions
},
186 { "ARIA-256-CCM", "default=yes", aria256ccm_functions
},
187 { "ARIA-192-CCM", "default=yes", aria192ccm_functions
},
188 { "ARIA-128-CCM", "default=yes", aria128ccm_functions
},
189 { "ARIA-256-ECB", "default=yes", aria256ecb_functions
},
190 { "ARIA-192-ECB", "default=yes", aria192ecb_functions
},
191 { "ARIA-128-ECB", "default=yes", aria128ecb_functions
},
192 { "ARIA-256-CBC:ARIA256", "default=yes", aria256cbc_functions
},
193 { "ARIA-192-CBC:ARIA192", "default=yes", aria192cbc_functions
},
194 { "ARIA-128-CBC:ARIA128", "default=yes", aria128cbc_functions
},
195 { "ARIA-256-OFB", "default=yes", aria256ofb_functions
},
196 { "ARIA-192-OFB", "default=yes", aria192ofb_functions
},
197 { "ARIA-128-OFB", "default=yes", aria128ofb_functions
},
198 { "ARIA-256-CFB", "default=yes", aria256cfb_functions
},
199 { "ARIA-192-CFB", "default=yes", aria192cfb_functions
},
200 { "ARIA-128-CFB", "default=yes", aria128cfb_functions
},
201 { "ARIA-256-CFB1", "default=yes", aria256cfb1_functions
},
202 { "ARIA-192-CFB1", "default=yes", aria192cfb1_functions
},
203 { "ARIA-128-CFB1", "default=yes", aria128cfb1_functions
},
204 { "ARIA-256-CFB8", "default=yes", aria256cfb8_functions
},
205 { "ARIA-192-CFB8", "default=yes", aria192cfb8_functions
},
206 { "ARIA-128-CFB8", "default=yes", aria128cfb8_functions
},
207 { "ARIA-256-CTR", "default=yes", aria256ctr_functions
},
208 { "ARIA-192-CTR", "default=yes", aria192ctr_functions
},
209 { "ARIA-128-CTR", "default=yes", aria128ctr_functions
},
210 #endif /* OPENSSL_NO_ARIA */
211 #ifndef OPENSSL_NO_CAMELLIA
212 { "CAMELLIA-256-ECB", "default=yes", camellia256ecb_functions
},
213 { "CAMELLIA-192-ECB", "default=yes", camellia192ecb_functions
},
214 { "CAMELLIA-128-ECB", "default=yes", camellia128ecb_functions
},
215 { "CAMELLIA-256-CBC:CAMELLIA256", "default=yes", camellia256cbc_functions
},
216 { "CAMELLIA-192-CBC:CAMELLIA192", "default=yes", camellia192cbc_functions
},
217 { "CAMELLIA-128-CBC:CAMELLIA128", "default=yes", camellia128cbc_functions
},
218 { "CAMELLIA-256-OFB", "default=yes", camellia256ofb_functions
},
219 { "CAMELLIA-192-OFB", "default=yes", camellia192ofb_functions
},
220 { "CAMELLIA-128-OFB", "default=yes", camellia128ofb_functions
},
221 { "CAMELLIA-256-CFB", "default=yes", camellia256cfb_functions
},
222 { "CAMELLIA-192-CFB", "default=yes", camellia192cfb_functions
},
223 { "CAMELLIA-128-CFB", "default=yes", camellia128cfb_functions
},
224 { "CAMELLIA-256-CFB1", "default=yes", camellia256cfb1_functions
},
225 { "CAMELLIA-192-CFB1", "default=yes", camellia192cfb1_functions
},
226 { "CAMELLIA-128-CFB1", "default=yes", camellia128cfb1_functions
},
227 { "CAMELLIA-256-CFB8", "default=yes", camellia256cfb8_functions
},
228 { "CAMELLIA-192-CFB8", "default=yes", camellia192cfb8_functions
},
229 { "CAMELLIA-128-CFB8", "default=yes", camellia128cfb8_functions
},
230 { "CAMELLIA-256-CTR", "default=yes", camellia256ctr_functions
},
231 { "CAMELLIA-192-CTR", "default=yes", camellia192ctr_functions
},
232 { "CAMELLIA-128-CTR", "default=yes", camellia128ctr_functions
},
233 #endif /* OPENSSL_NO_CAMELLIA */
234 #ifndef OPENSSL_NO_DES
235 { "DES-EDE3-ECB:DES-EDE3", "default=yes", tdes_ede3_ecb_functions
},
236 { "DES-EDE3-CBC:DES3", "default=yes", tdes_ede3_cbc_functions
},
237 { "DES-EDE3-OFB", "default=yes", tdes_ede3_ofb_functions
},
238 { "DES-EDE3-CFB", "default=yes", tdes_ede3_cfb_functions
},
239 { "DES-EDE3-CFB8", "default=yes", tdes_ede3_cfb8_functions
},
240 { "DES-EDE3-CFB1", "default=yes", tdes_ede3_cfb1_functions
},
241 { "DES-EDE-ECB:DES-EDE", "default=yes", tdes_ede2_ecb_functions
},
242 { "DES-EDE-CBC", "default=yes", tdes_ede2_cbc_functions
},
243 { "DES-EDE-OFB", "default=yes", tdes_ede2_ofb_functions
},
244 { "DES-EDE-CFB", "default=yes", tdes_ede2_cfb_functions
},
245 { "DESX-CBC:DESX", "default=yes", tdes_desx_cbc_functions
},
246 { "DES3-WRAP:id-smime-alg-CMS3DESwrap", "default=yes", tdes_wrap_cbc_functions
},
247 { "DES-ECB", "default=yes", des_ecb_functions
},
248 { "DES-CBC:DES", "default=yes", des_cbc_functions
},
249 { "DES-OFB", "default=yes", des_ofb64_functions
},
250 { "DES-CFB", "default=yes", des_cfb64_functions
},
251 { "DES-CFB1", "default=yes", des_cfb1_functions
},
252 { "DES-CFB8", "default=yes", des_cfb8_functions
},
253 #endif /* OPENSSL_NO_DES */
254 #ifndef OPENSSL_NO_BF
255 { "BF-ECB", "default=yes", blowfish128ecb_functions
},
256 { "BF-CBC:BF:BLOWFISH", "default=yes", blowfish128cbc_functions
},
257 { "BF-OFB", "default=yes", blowfish64ofb64_functions
},
258 { "BF-CFB", "default=yes", blowfish64cfb64_functions
},
259 #endif /* OPENSSL_NO_BF */
260 #ifndef OPENSSL_NO_IDEA
261 { "IDEA-ECB", "default=yes", idea128ecb_functions
},
262 { "IDEA-CBC:IDEA", "default=yes", idea128cbc_functions
},
263 { "IDEA-OFB:IDEA-OFB64", "default=yes", idea128ofb64_functions
},
264 { "IDEA-CFB:IDEA-CFB64", "default=yes", idea128cfb64_functions
},
265 #endif /* OPENSSL_NO_IDEA */
266 #ifndef OPENSSL_NO_CAST
267 { "CAST5-ECB", "default=yes", cast5128ecb_functions
},
268 { "CAST5-CBC:CAST-CBC:CAST", "default=yes", cast5128cbc_functions
},
269 { "CAST5-OFB", "default=yes", cast564ofb64_functions
},
270 { "CAST5-CFB", "default=yes", cast564cfb64_functions
},
271 #endif /* OPENSSL_NO_CAST */
272 #ifndef OPENSSL_NO_SEED
273 { "SEED-ECB", "default=yes", seed128ecb_functions
},
274 { "SEED-CBC:SEED", "default=yes", seed128cbc_functions
},
275 { "SEED-OFB:SEED-OFB128", "default=yes", seed128ofb128_functions
},
276 { "SEED-CFB:SEED-CFB128", "default=yes", seed128cfb128_functions
},
277 #endif /* OPENSSL_NO_SEED */
278 #ifndef OPENSSL_NO_SM4
279 { "SM4-ECB", "default=yes", sm4128ecb_functions
},
280 { "SM4-CBC:SM4", "default=yes", sm4128cbc_functions
},
281 { "SM4-CTR", "default=yes", sm4128ctr_functions
},
282 { "SM4-OFB:SM4-OFB128", "default=yes", sm4128ofb128_functions
},
283 { "SM4-CFB:SM4-CFB128", "default=yes", sm4128cfb128_functions
},
284 #endif /* OPENSSL_NO_SM4 */
285 #ifndef OPENSSL_NO_RC4
286 { "RC4", "default=yes", rc4128_functions
},
287 { "RC4-40", "default=yes", rc440_functions
},
288 # ifndef OPENSSL_NO_MD5
289 { "RC4-HMAC-MD5", "default=yes", rc4_hmac_md5_functions
},
290 # endif /* OPENSSL_NO_MD5 */
291 #endif /* OPENSSL_NO_RC4 */
292 #ifndef OPENSSL_NO_RC5
293 { "RC5-ECB", "default=yes", rc5128ecb_functions
},
294 { "RC5-CBC", "default=yes", rc5128cbc_functions
},
295 { "RC5-OFB", "default=yes", rc5128ofb64_functions
},
296 { "RC5-CFB", "default=yes", rc5128cfb64_functions
},
297 #endif /* OPENSSL_NO_RC5 */
298 #ifndef OPENSSL_NO_RC2
299 { "RC2-ECB", "default=yes", rc2128ecb_functions
},
300 { "RC2-CBC", "default=yes", rc2128cbc_functions
},
301 { "RC2-40-CBC", "default=yes", rc240cbc_functions
},
302 { "RC2-64-CBC", "default=yes", rc264cbc_functions
},
303 { "RC2-CFB", "default=yes", rc2128cfb128_functions
},
304 { "RC2-OFB", "default=yes", rc2128ofb128_functions
},
305 #endif /* OPENSSL_NO_RC2 */
306 #ifndef OPENSSL_NO_CHACHA
307 { "ChaCha20", "default=yes", chacha20_functions
},
308 # ifndef OPENSSL_NO_POLY1305
309 { "ChaCha20-Poly1305", "default=yes", chacha20_poly1305_functions
},
310 # endif /* OPENSSL_NO_POLY1305 */
311 #endif /* OPENSSL_NO_CHACHA */
315 static const OSSL_ALGORITHM deflt_macs
[] = {
316 #ifndef OPENSSL_NO_BLAKE2
317 { "BLAKE2bMAC", "default=yes", blake2bmac_functions
},
318 { "BLAKE2sMAC", "default=yes", blake2smac_functions
},
320 #ifndef OPENSSL_NO_CMAC
321 { "CMAC", "default=yes", cmac_functions
},
323 { "GMAC", "default=yes", gmac_functions
},
324 { "HMAC", "default=yes", hmac_functions
},
325 { "KMAC128", "default=yes", kmac128_functions
},
326 { "KMAC256", "default=yes", kmac256_functions
},
327 #ifndef OPENSSL_NO_SIPHASH
328 { "SipHash", "default=yes", siphash_functions
},
330 #ifndef OPENSSL_NO_POLY1305
331 { "Poly1305", "default=yes", poly1305_functions
},
336 static const OSSL_ALGORITHM deflt_kdfs
[] = {
337 { "HKDF", "default=yes", kdf_hkdf_functions
},
338 { "SSKDF", "default=yes", kdf_sskdf_functions
},
339 { "PBKDF2", "default=yes", kdf_pbkdf2_functions
},
340 { "SSHKDF", "default=yes", kdf_sshkdf_functions
},
341 { "X963KDF", "default=yes", kdf_x963_kdf_functions
},
342 { "TLS1-PRF", "default=yes", kdf_tls1_prf_functions
},
343 { "KBKDF", "default=yes", kdf_kbkdf_functions
},
344 #ifndef OPENSSL_NO_CMS
345 { "X942KDF", "default=yes", kdf_x942_kdf_functions
},
347 #ifndef OPENSSL_NO_SCRYPT
348 { "SCRYPT:id-scrypt", "default=yes", kdf_scrypt_functions
},
350 { "KRB5KDF", "default=yes", kdf_krb5kdf_functions
},
354 static const OSSL_ALGORITHM deflt_keyexch
[] = {
355 #ifndef OPENSSL_NO_DH
356 { "DH:dhKeyAgreement", "default=yes", dh_keyexch_functions
},
361 static const OSSL_ALGORITHM deflt_signature
[] = {
362 #ifndef OPENSSL_NO_DSA
363 { "DSA:dsaEncryption", "default=yes", dsa_signature_functions
},
368 static const OSSL_ALGORITHM deflt_asym_cipher
[] = {
369 { "RSA:rsaEncryption", "default=yes", rsa_asym_cipher_functions
},
373 static const OSSL_ALGORITHM deflt_keymgmt
[] = {
374 #ifndef OPENSSL_NO_DH
375 { "DH", "default=yes", dh_keymgmt_functions
},
377 #ifndef OPENSSL_NO_DSA
378 { "DSA", "default=yes", dsa_keymgmt_functions
},
380 { "RSA", "default=yes", rsa_keymgmt_functions
},
384 static const OSSL_ALGORITHM
*deflt_query(OSSL_PROVIDER
*prov
,
389 switch (operation_id
) {
391 return deflt_digests
;
393 return deflt_ciphers
;
398 case OSSL_OP_KEYMGMT
:
399 return deflt_keymgmt
;
400 case OSSL_OP_KEYEXCH
:
401 return deflt_keyexch
;
402 case OSSL_OP_SIGNATURE
:
403 return deflt_signature
;
404 case OSSL_OP_ASYM_CIPHER
:
405 return deflt_asym_cipher
;
410 /* Functions we provide to the core */
411 static const OSSL_DISPATCH deflt_dispatch_table
[] = {
412 { OSSL_FUNC_PROVIDER_GETTABLE_PARAMS
, (void (*)(void))deflt_gettable_params
},
413 { OSSL_FUNC_PROVIDER_GET_PARAMS
, (void (*)(void))deflt_get_params
},
414 { OSSL_FUNC_PROVIDER_QUERY_OPERATION
, (void (*)(void))deflt_query
},
418 OSSL_provider_init_fn ossl_default_provider_init
;
420 int ossl_default_provider_init(const OSSL_PROVIDER
*provider
,
421 const OSSL_DISPATCH
*in
,
422 const OSSL_DISPATCH
**out
,
425 OSSL_core_get_library_context_fn
*c_get_libctx
= NULL
;
427 for (; in
->function_id
!= 0; in
++) {
428 switch (in
->function_id
) {
429 case OSSL_FUNC_CORE_GETTABLE_PARAMS
:
430 c_gettable_params
= OSSL_get_core_gettable_params(in
);
432 case OSSL_FUNC_CORE_GET_PARAMS
:
433 c_get_params
= OSSL_get_core_get_params(in
);
435 case OSSL_FUNC_CORE_GET_LIBRARY_CONTEXT
:
436 c_get_libctx
= OSSL_get_core_get_library_context(in
);
439 /* Just ignore anything we don't understand */
444 if (c_get_libctx
== NULL
)
447 *out
= deflt_dispatch_table
;
450 * We want to make sure that all calls from this provider that requires
451 * a library context use the same context as the one used to call our
452 * functions. We do that by passing it along as the provider context.
454 *provctx
= c_get_libctx(provider
);