diff options
Diffstat (limited to 'openssl-1.1.0h/crypto/asn1/ameth_lib.c')
| -rw-r--r-- | openssl-1.1.0h/crypto/asn1/ameth_lib.c | 411 |
1 files changed, 411 insertions, 0 deletions
diff --git a/openssl-1.1.0h/crypto/asn1/ameth_lib.c b/openssl-1.1.0h/crypto/asn1/ameth_lib.c new file mode 100644 index 0000000..b8ba067 --- /dev/null +++ b/openssl-1.1.0h/crypto/asn1/ameth_lib.c @@ -0,0 +1,411 @@ +/* + * Copyright 2006-2018 The OpenSSL Project Authors. All Rights Reserved. + * + * Licensed under the OpenSSL license (the "License"). You may not use + * this file except in compliance with the License. You can obtain a copy + * in the file LICENSE in the source distribution or at + * https://www.openssl.org/source/license.html + */ + +#include <stdio.h> +#include "internal/cryptlib.h" +#include <openssl/asn1t.h> +#include <openssl/x509.h> +#include <openssl/engine.h> +#include "internal/asn1_int.h" +#include "internal/evp_int.h" + +/* Keep this sorted in type order !! */ +static const EVP_PKEY_ASN1_METHOD *standard_methods[] = { +#ifndef OPENSSL_NO_RSA + &rsa_asn1_meths[0], + &rsa_asn1_meths[1], +#endif +#ifndef OPENSSL_NO_DH + &dh_asn1_meth, +#endif +#ifndef OPENSSL_NO_DSA + &dsa_asn1_meths[0], + &dsa_asn1_meths[1], + &dsa_asn1_meths[2], + &dsa_asn1_meths[3], + &dsa_asn1_meths[4], +#endif +#ifndef OPENSSL_NO_EC + &eckey_asn1_meth, +#endif + &hmac_asn1_meth, +#ifndef OPENSSL_NO_CMAC + &cmac_asn1_meth, +#endif +#ifndef OPENSSL_NO_DH + &dhx_asn1_meth, +#endif +#ifndef OPENSSL_NO_EC + &ecx25519_asn1_meth +#endif +}; + +typedef int sk_cmp_fn_type(const char *const *a, const char *const *b); +static STACK_OF(EVP_PKEY_ASN1_METHOD) *app_methods = NULL; + +#ifdef TEST +void main() +{ + int i; + for (i = 0; i < OSSL_NELEM(standard_methods); i++) + fprintf(stderr, "Number %d id=%d (%s)\n", i, + standard_methods[i]->pkey_id, + OBJ_nid2sn(standard_methods[i]->pkey_id)); +} +#endif + +DECLARE_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_ASN1_METHOD *, + const EVP_PKEY_ASN1_METHOD *, ameth); + +static int ameth_cmp(const EVP_PKEY_ASN1_METHOD *const *a, + const EVP_PKEY_ASN1_METHOD *const *b) +{ + return ((*a)->pkey_id - (*b)->pkey_id); +} + +IMPLEMENT_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_ASN1_METHOD *, + const EVP_PKEY_ASN1_METHOD *, ameth); + +int EVP_PKEY_asn1_get_count(void) +{ + int num = OSSL_NELEM(standard_methods); + if (app_methods) + num += sk_EVP_PKEY_ASN1_METHOD_num(app_methods); + return num; +} + +const EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_get0(int idx) +{ + int num = OSSL_NELEM(standard_methods); + if (idx < 0) + return NULL; + if (idx < num) + return standard_methods[idx]; + idx -= num; + return sk_EVP_PKEY_ASN1_METHOD_value(app_methods, idx); +} + +static const EVP_PKEY_ASN1_METHOD *pkey_asn1_find(int type) +{ + EVP_PKEY_ASN1_METHOD tmp; + const EVP_PKEY_ASN1_METHOD *t = &tmp, **ret; + tmp.pkey_id = type; + if (app_methods) { + int idx; + idx = sk_EVP_PKEY_ASN1_METHOD_find(app_methods, &tmp); + if (idx >= 0) + return sk_EVP_PKEY_ASN1_METHOD_value(app_methods, idx); + } + ret = OBJ_bsearch_ameth(&t, standard_methods, OSSL_NELEM(standard_methods)); + if (!ret || !*ret) + return NULL; + return *ret; +} + +/* + * Find an implementation of an ASN1 algorithm. If 'pe' is not NULL also + * search through engines and set *pe to a functional reference to the engine + * implementing 'type' or NULL if no engine implements it. + */ + +const EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_find(ENGINE **pe, int type) +{ + const EVP_PKEY_ASN1_METHOD *t; + + for (;;) { + t = pkey_asn1_find(type); + if (!t || !(t->pkey_flags & ASN1_PKEY_ALIAS)) + break; + type = t->pkey_base_id; + } + if (pe) { +#ifndef OPENSSL_NO_ENGINE + ENGINE *e; + /* type will contain the final unaliased type */ + e = ENGINE_get_pkey_asn1_meth_engine(type); + if (e) { + *pe = e; + return ENGINE_get_pkey_asn1_meth(e, type); + } +#endif + *pe = NULL; + } + return t; +} + +const EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_find_str(ENGINE **pe, + const char *str, int len) +{ + int i; + const EVP_PKEY_ASN1_METHOD *ameth = NULL; + + if (len == -1) + len = strlen(str); + if (pe) { +#ifndef OPENSSL_NO_ENGINE + ENGINE *e; + ameth = ENGINE_pkey_asn1_find_str(&e, str, len); + if (ameth) { + /* + * Convert structural into functional reference + */ + if (!ENGINE_init(e)) + ameth = NULL; + ENGINE_free(e); + *pe = e; + return ameth; + } +#endif + *pe = NULL; + } + for (i = EVP_PKEY_asn1_get_count(); i-- > 0; ) { + ameth = EVP_PKEY_asn1_get0(i); + if (ameth->pkey_flags & ASN1_PKEY_ALIAS) + continue; + if ((int)strlen(ameth->pem_str) == len + && strncasecmp(ameth->pem_str, str, len) == 0) + return ameth; + } + return NULL; +} + +int EVP_PKEY_asn1_add0(const EVP_PKEY_ASN1_METHOD *ameth) +{ + EVP_PKEY_ASN1_METHOD tmp = { 0, }; + + if (app_methods == NULL) { + app_methods = sk_EVP_PKEY_ASN1_METHOD_new(ameth_cmp); + if (app_methods == NULL) + return 0; + } + + tmp.pkey_id = ameth->pkey_id; + if (sk_EVP_PKEY_ASN1_METHOD_find(app_methods, &tmp) >= 0) { + EVPerr(EVP_F_EVP_PKEY_ASN1_ADD0, + EVP_R_PKEY_APPLICATION_ASN1_METHOD_ALREADY_REGISTERED); + return 0; + } + + if (!sk_EVP_PKEY_ASN1_METHOD_push(app_methods, ameth)) + return 0; + sk_EVP_PKEY_ASN1_METHOD_sort(app_methods); + return 1; +} + +int EVP_PKEY_asn1_add_alias(int to, int from) +{ + EVP_PKEY_ASN1_METHOD *ameth; + ameth = EVP_PKEY_asn1_new(from, ASN1_PKEY_ALIAS, NULL, NULL); + if (ameth == NULL) + return 0; + ameth->pkey_base_id = to; + if (!EVP_PKEY_asn1_add0(ameth)) { + EVP_PKEY_asn1_free(ameth); + return 0; + } + return 1; +} + +int EVP_PKEY_asn1_get0_info(int *ppkey_id, int *ppkey_base_id, + int *ppkey_flags, const char **pinfo, + const char **ppem_str, + const EVP_PKEY_ASN1_METHOD *ameth) +{ + if (!ameth) + return 0; + if (ppkey_id) + *ppkey_id = ameth->pkey_id; + if (ppkey_base_id) + *ppkey_base_id = ameth->pkey_base_id; + if (ppkey_flags) + *ppkey_flags = ameth->pkey_flags; + if (pinfo) + *pinfo = ameth->info; + if (ppem_str) + *ppem_str = ameth->pem_str; + return 1; +} + +const EVP_PKEY_ASN1_METHOD *EVP_PKEY_get0_asn1(const EVP_PKEY *pkey) +{ + return pkey->ameth; +} + +EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_new(int id, int flags, + const char *pem_str, const char *info) +{ + EVP_PKEY_ASN1_METHOD *ameth = OPENSSL_zalloc(sizeof(*ameth)); + + if (ameth == NULL) + return NULL; + + ameth->pkey_id = id; + ameth->pkey_base_id = id; + ameth->pkey_flags = flags | ASN1_PKEY_DYNAMIC; + + if (info) { + ameth->info = OPENSSL_strdup(info); + if (!ameth->info) + goto err; + } + + if (pem_str) { + ameth->pem_str = OPENSSL_strdup(pem_str); + if (!ameth->pem_str) + goto err; + } + + return ameth; + + err: + EVP_PKEY_asn1_free(ameth); + return NULL; + +} + +void EVP_PKEY_asn1_copy(EVP_PKEY_ASN1_METHOD *dst, + const EVP_PKEY_ASN1_METHOD *src) +{ + + dst->pub_decode = src->pub_decode; + dst->pub_encode = src->pub_encode; + dst->pub_cmp = src->pub_cmp; + dst->pub_print = src->pub_print; + + dst->priv_decode = src->priv_decode; + dst->priv_encode = src->priv_encode; + dst->priv_print = src->priv_print; + + dst->old_priv_encode = src->old_priv_encode; + dst->old_priv_decode = src->old_priv_decode; + + dst->pkey_size = src->pkey_size; + dst->pkey_bits = src->pkey_bits; + + dst->param_decode = src->param_decode; + dst->param_encode = src->param_encode; + dst->param_missing = src->param_missing; + dst->param_copy = src->param_copy; + dst->param_cmp = src->param_cmp; + dst->param_print = src->param_print; + + dst->pkey_free = src->pkey_free; + dst->pkey_ctrl = src->pkey_ctrl; + + dst->item_sign = src->item_sign; + dst->item_verify = src->item_verify; + +} + +void EVP_PKEY_asn1_free(EVP_PKEY_ASN1_METHOD *ameth) +{ + if (ameth && (ameth->pkey_flags & ASN1_PKEY_DYNAMIC)) { + OPENSSL_free(ameth->pem_str); + OPENSSL_free(ameth->info); + OPENSSL_free(ameth); + } +} + +void EVP_PKEY_asn1_set_public(EVP_PKEY_ASN1_METHOD *ameth, + int (*pub_decode) (EVP_PKEY *pk, + X509_PUBKEY *pub), + int (*pub_encode) (X509_PUBKEY *pub, + const EVP_PKEY *pk), + int (*pub_cmp) (const EVP_PKEY *a, + const EVP_PKEY *b), + int (*pub_print) (BIO *out, + const EVP_PKEY *pkey, + int indent, ASN1_PCTX *pctx), + int (*pkey_size) (const EVP_PKEY *pk), + int (*pkey_bits) (const EVP_PKEY *pk)) +{ + ameth->pub_decode = pub_decode; + ameth->pub_encode = pub_encode; + ameth->pub_cmp = pub_cmp; + ameth->pub_print = pub_print; + ameth->pkey_size = pkey_size; + ameth->pkey_bits = pkey_bits; +} + +void EVP_PKEY_asn1_set_private(EVP_PKEY_ASN1_METHOD *ameth, + int (*priv_decode) (EVP_PKEY *pk, + const PKCS8_PRIV_KEY_INFO + *p8inf), + int (*priv_encode) (PKCS8_PRIV_KEY_INFO *p8, + const EVP_PKEY *pk), + int (*priv_print) (BIO *out, + const EVP_PKEY *pkey, + int indent, + ASN1_PCTX *pctx)) +{ + ameth->priv_decode = priv_decode; + ameth->priv_encode = priv_encode; + ameth->priv_print = priv_print; +} + +void EVP_PKEY_asn1_set_param(EVP_PKEY_ASN1_METHOD *ameth, + int (*param_decode) (EVP_PKEY *pkey, + const unsigned char **pder, + int derlen), + int (*param_encode) (const EVP_PKEY *pkey, + unsigned char **pder), + int (*param_missing) (const EVP_PKEY *pk), + int (*param_copy) (EVP_PKEY *to, + const EVP_PKEY *from), + int (*param_cmp) (const EVP_PKEY *a, + const EVP_PKEY *b), + int (*param_print) (BIO *out, + const EVP_PKEY *pkey, + int indent, ASN1_PCTX *pctx)) +{ + ameth->param_decode = param_decode; + ameth->param_encode = param_encode; + ameth->param_missing = param_missing; + ameth->param_copy = param_copy; + ameth->param_cmp = param_cmp; + ameth->param_print = param_print; +} + +void EVP_PKEY_asn1_set_free(EVP_PKEY_ASN1_METHOD *ameth, + void (*pkey_free) (EVP_PKEY *pkey)) +{ + ameth->pkey_free = pkey_free; +} + +void EVP_PKEY_asn1_set_ctrl(EVP_PKEY_ASN1_METHOD *ameth, + int (*pkey_ctrl) (EVP_PKEY *pkey, int op, + long arg1, void *arg2)) +{ + ameth->pkey_ctrl = pkey_ctrl; +} + +void EVP_PKEY_asn1_set_security_bits(EVP_PKEY_ASN1_METHOD *ameth, + int (*pkey_security_bits) (const EVP_PKEY + *pk)) +{ + ameth->pkey_security_bits = pkey_security_bits; +} + +void EVP_PKEY_asn1_set_item(EVP_PKEY_ASN1_METHOD *ameth, + int (*item_verify) (EVP_MD_CTX *ctx, + const ASN1_ITEM *it, + void *asn, + X509_ALGOR *a, + ASN1_BIT_STRING *sig, + EVP_PKEY *pkey), + int (*item_sign) (EVP_MD_CTX *ctx, + const ASN1_ITEM *it, + void *asn, + X509_ALGOR *alg1, + X509_ALGOR *alg2, + ASN1_BIT_STRING *sig)) +{ + ameth->item_sign = item_sign; + ameth->item_verify = item_verify; +} |