X-Git-Url: https://git.openssl.org/?p=openssl.git;a=blobdiff_plain;f=crypto%2Fengine%2Ftb_asnmth.c;h=407023fdf6565ddb642210c92c13752dc3208aa3;hp=b3a4fd533cc0245f92bc76466ea51e2e3a50ab9b;hb=86885c289580066792415218754bd935b449f170;hpb=777c47acbeecf9602cc465864c9f5f2c609c989d diff --git a/crypto/engine/tb_asnmth.c b/crypto/engine/tb_asnmth.c index b3a4fd533c..407023fdf6 100644 --- a/crypto/engine/tb_asnmth.c +++ b/crypto/engine/tb_asnmth.c @@ -6,7 +6,7 @@ * are met: * * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. + * notice, this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in @@ -53,143 +53,194 @@ */ #include "eng_int.h" -#include "asn1_locl.h" +#include +#include "internal/asn1_int.h" -/* If this symbol is defined then ENGINE_get_pkey_asn1_meth_engine(), the +/* + * If this symbol is defined then ENGINE_get_pkey_asn1_meth_engine(), the * function that is used by EVP to hook in pkey_asn1_meth code and cache * defaults (etc), will display brief debugging summaries to stderr with the - * 'nid'. */ + * 'nid'. + */ /* #define ENGINE_PKEY_ASN1_METH_DEBUG */ static ENGINE_TABLE *pkey_asn1_meth_table = NULL; void ENGINE_unregister_pkey_asn1_meths(ENGINE *e) - { - engine_table_unregister(&pkey_asn1_meth_table, e); - } +{ + engine_table_unregister(&pkey_asn1_meth_table, e); +} static void engine_unregister_all_pkey_asn1_meths(void) - { - engine_table_cleanup(&pkey_asn1_meth_table); - } +{ + engine_table_cleanup(&pkey_asn1_meth_table); +} int ENGINE_register_pkey_asn1_meths(ENGINE *e) - { - if(e->pkey_asn1_meths) - { - const int *nids; - int num_nids = e->pkey_asn1_meths(e, NULL, &nids, 0); - if(num_nids > 0) - return engine_table_register(&pkey_asn1_meth_table, - engine_unregister_all_pkey_asn1_meths, e, nids, - num_nids, 0); - } - return 1; - } +{ + if (e->pkey_asn1_meths) { + const int *nids; + int num_nids = e->pkey_asn1_meths(e, NULL, &nids, 0); + if (num_nids > 0) + return engine_table_register(&pkey_asn1_meth_table, + engine_unregister_all_pkey_asn1_meths, + e, nids, num_nids, 0); + } + return 1; +} void ENGINE_register_all_pkey_asn1_meths(void) - { - ENGINE *e; +{ + ENGINE *e; - for(e=ENGINE_get_first() ; e ; e=ENGINE_get_next(e)) - ENGINE_register_pkey_asn1_meths(e); - } + for (e = ENGINE_get_first(); e; e = ENGINE_get_next(e)) + ENGINE_register_pkey_asn1_meths(e); +} int ENGINE_set_default_pkey_asn1_meths(ENGINE *e) - { - if(e->pkey_asn1_meths) - { - const int *nids; - int num_nids = e->pkey_asn1_meths(e, NULL, &nids, 0); - if(num_nids > 0) - return engine_table_register(&pkey_asn1_meth_table, - engine_unregister_all_pkey_asn1_meths, e, nids, - num_nids, 1); - } - return 1; - } - -/* Exposed API function to get a functional reference from the implementation +{ + if (e->pkey_asn1_meths) { + const int *nids; + int num_nids = e->pkey_asn1_meths(e, NULL, &nids, 0); + if (num_nids > 0) + return engine_table_register(&pkey_asn1_meth_table, + engine_unregister_all_pkey_asn1_meths, + e, nids, num_nids, 1); + } + return 1; +} + +/* + * Exposed API function to get a functional reference from the implementation * table (ie. try to get a functional reference from the tabled structural - * references) for a given pkey_asn1_meth 'nid' */ + * references) for a given pkey_asn1_meth 'nid' + */ ENGINE *ENGINE_get_pkey_asn1_meth_engine(int nid) - { - return engine_table_select(&pkey_asn1_meth_table, nid); - } +{ + return engine_table_select(&pkey_asn1_meth_table, nid); +} -/* Obtains a pkey_asn1_meth implementation from an ENGINE functional reference */ +/* + * Obtains a pkey_asn1_meth implementation from an ENGINE functional + * reference + */ const EVP_PKEY_ASN1_METHOD *ENGINE_get_pkey_asn1_meth(ENGINE *e, int nid) - { - EVP_PKEY_ASN1_METHOD *ret; - ENGINE_PKEY_ASN1_METHS_PTR fn = ENGINE_get_pkey_asn1_meths(e); - if(!fn || !fn(e, &ret, NULL, nid)) - { - ENGINEerr(ENGINE_F_ENGINE_GET_PKEY_ASN1_METH, - ENGINE_R_UNIMPLEMENTED_PUBLIC_KEY_METHOD); - return NULL; - } - return ret; - } +{ + EVP_PKEY_ASN1_METHOD *ret; + ENGINE_PKEY_ASN1_METHS_PTR fn = ENGINE_get_pkey_asn1_meths(e); + if (!fn || !fn(e, &ret, NULL, nid)) { + ENGINEerr(ENGINE_F_ENGINE_GET_PKEY_ASN1_METH, + ENGINE_R_UNIMPLEMENTED_PUBLIC_KEY_METHOD); + return NULL; + } + return ret; +} /* Gets the pkey_asn1_meth callback from an ENGINE structure */ ENGINE_PKEY_ASN1_METHS_PTR ENGINE_get_pkey_asn1_meths(const ENGINE *e) - { - return e->pkey_asn1_meths; - } +{ + return e->pkey_asn1_meths; +} /* Sets the pkey_asn1_meth callback in an ENGINE structure */ int ENGINE_set_pkey_asn1_meths(ENGINE *e, ENGINE_PKEY_ASN1_METHS_PTR f) - { - e->pkey_asn1_meths = f; - return 1; - } +{ + e->pkey_asn1_meths = f; + return 1; +} -/* Internal function to free up EVP_PKEY_ASN1_METHOD structures before an +/* + * Internal function to free up EVP_PKEY_ASN1_METHOD structures before an * ENGINE is destroyed */ void engine_pkey_asn1_meths_free(ENGINE *e) - { - int i; - EVP_PKEY_ASN1_METHOD *pkm; - if (e->pkey_asn1_meths) - { - const int *pknids; - int npknids; - npknids = e->pkey_asn1_meths(e, NULL, &pknids, 0); - for (i = 0; i < npknids; i++) - { - if (e->pkey_asn1_meths(e, &pkm, NULL, pknids[i])) - { - EVP_PKEY_asn1_free(pkm); - } - } - } - } - -/* Find a method based on a string. This does a linear search through - * all implemented algorithms. This is OK in practice because only - * a small number of algorithms are likely to be implemented in an engine - * and it is not used for speed critical operations. +{ + int i; + EVP_PKEY_ASN1_METHOD *pkm; + if (e->pkey_asn1_meths) { + const int *pknids; + int npknids; + npknids = e->pkey_asn1_meths(e, NULL, &pknids, 0); + for (i = 0; i < npknids; i++) { + if (e->pkey_asn1_meths(e, &pkm, NULL, pknids[i])) { + EVP_PKEY_asn1_free(pkm); + } + } + } +} + +/* + * Find a method based on a string. This does a linear search through all + * implemented algorithms. This is OK in practice because only a small number + * of algorithms are likely to be implemented in an engine and it is not used + * for speed critical operations. */ const EVP_PKEY_ASN1_METHOD *ENGINE_get_pkey_asn1_meth_str(ENGINE *e, - const char *str, int len) - { - int i, nidcount; - const int *nids; - EVP_PKEY_ASN1_METHOD *ameth; - if (!e->pkey_asn1_meths) - return NULL; - if (len == -1) - len = strlen(str); - nidcount = e->pkey_asn1_meths(e, NULL, &nids, 0); - for (i = 0; i < nidcount; i++) - { - e->pkey_asn1_meths(e, &ameth, NULL, nids[i]); - if (((int)strlen(ameth->pem_str) == len) && - !strncasecmp(ameth->pem_str, str, len)) - return ameth; - } - return NULL; - } + const char *str, + int len) +{ + int i, nidcount; + const int *nids; + EVP_PKEY_ASN1_METHOD *ameth; + if (!e->pkey_asn1_meths) + return NULL; + if (len == -1) + len = strlen(str); + nidcount = e->pkey_asn1_meths(e, NULL, &nids, 0); + for (i = 0; i < nidcount; i++) { + e->pkey_asn1_meths(e, &ameth, NULL, nids[i]); + if (((int)strlen(ameth->pem_str) == len) + && strncasecmp(ameth->pem_str, str, len) == 0) + return ameth; + } + return NULL; +} + +typedef struct { + ENGINE *e; + const EVP_PKEY_ASN1_METHOD *ameth; + const char *str; + int len; +} ENGINE_FIND_STR; + +static void look_str_cb(int nid, STACK_OF(ENGINE) *sk, ENGINE *def, void *arg) +{ + ENGINE_FIND_STR *lk = arg; + int i; + if (lk->ameth) + return; + for (i = 0; i < sk_ENGINE_num(sk); i++) { + ENGINE *e = sk_ENGINE_value(sk, i); + EVP_PKEY_ASN1_METHOD *ameth; + e->pkey_asn1_meths(e, &ameth, NULL, nid); + if (((int)strlen(ameth->pem_str) == lk->len) + && strncasecmp(ameth->pem_str, lk->str, lk->len) == 0) { + lk->e = e; + lk->ameth = ameth; + return; + } + } +} + +const EVP_PKEY_ASN1_METHOD *ENGINE_pkey_asn1_find_str(ENGINE **pe, + const char *str, + int len) +{ + ENGINE_FIND_STR fstr; + fstr.e = NULL; + fstr.ameth = NULL; + fstr.str = str; + fstr.len = len; + CRYPTO_w_lock(CRYPTO_LOCK_ENGINE); + engine_table_doall(pkey_asn1_meth_table, look_str_cb, &fstr); + /* If found obtain a structural reference to engine */ + if (fstr.e) { + fstr.e->struct_ref++; + engine_ref_debug(fstr.e, 0, 1) + } + *pe = fstr.e; + CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE); + return fstr.ameth; +}