From de9fcfe34809a75b968c07878ee8628010782bd0 Mon Sep 17 00:00:00 2001 From: "Dr. Stephen Henson" Date: Fri, 2 Jun 2006 17:52:27 +0000 Subject: [PATCH] Initial public key ASN1 method engine support. Not integrated yet. --- CHANGES | 2 + crypto/engine/Makefile | 4 +- crypto/engine/eng_err.c | 1 + crypto/engine/eng_int.h | 2 + crypto/engine/engine.h | 5 ++ crypto/engine/tb_asnmth.c | 166 ++++++++++++++++++++++++++++++++++++++ 6 files changed, 178 insertions(+), 2 deletions(-) create mode 100644 crypto/engine/tb_asnmth.c diff --git a/CHANGES b/CHANGES index def2f8187b..46d5cd8445 100644 --- a/CHANGES +++ b/CHANGES @@ -4,6 +4,8 @@ Changes between 0.9.8b and 0.9.9 [xx XXX xxxx] + *) Initial engine support for EVP_PKEY_ASN1_METHOD. + *) Initial engine support for EVP_PKEY_METHOD. New functions to permit an engine to register a method. Add ENGINE lookups for methods and functional reference processing. diff --git a/crypto/engine/Makefile b/crypto/engine/Makefile index 11a3f82246..eb94fe6b67 100644 --- a/crypto/engine/Makefile +++ b/crypto/engine/Makefile @@ -20,12 +20,12 @@ LIB=$(TOP)/libcrypto.a LIBSRC= eng_err.c eng_lib.c eng_list.c eng_init.c eng_ctrl.c \ eng_table.c eng_pkey.c eng_fat.c eng_all.c \ tb_rsa.c tb_dsa.c tb_ecdsa.c tb_dh.c tb_ecdh.c tb_rand.c tb_store.c \ - tb_cipher.c tb_digest.c tb_pkmeth.c \ + tb_cipher.c tb_digest.c tb_pkmeth.c tb_asnmth.c \ eng_openssl.c eng_cnf.c eng_dyn.c eng_cryptodev.c eng_padlock.c LIBOBJ= eng_err.o eng_lib.o eng_list.o eng_init.o eng_ctrl.o \ eng_table.o eng_pkey.o eng_fat.o eng_all.o \ tb_rsa.o tb_dsa.o tb_ecdsa.o tb_dh.o tb_ecdh.o tb_rand.o tb_store.o \ - tb_cipher.o tb_digest.o tb_pkmeth.o \ + tb_cipher.o tb_digest.o tb_pkmeth.o tb_asnmth.o \ eng_openssl.o eng_cnf.o eng_dyn.o eng_cryptodev.o eng_padlock.o SRC= $(LIBSRC) diff --git a/crypto/engine/eng_err.c b/crypto/engine/eng_err.c index 8de1a4fb09..70fbc4de1e 100644 --- a/crypto/engine/eng_err.c +++ b/crypto/engine/eng_err.c @@ -86,6 +86,7 @@ static ERR_STRING_DATA ENGINE_str_functs[]= {ERR_FUNC(ENGINE_F_ENGINE_GET_DEFAULT_TYPE), "ENGINE_GET_DEFAULT_TYPE"}, {ERR_FUNC(ENGINE_F_ENGINE_GET_DIGEST), "ENGINE_get_digest"}, {ERR_FUNC(ENGINE_F_ENGINE_GET_NEXT), "ENGINE_get_next"}, +{ERR_FUNC(ENGINE_F_ENGINE_GET_PKEY_ASN1_METH), "ENGINE_get_pkey_asn1_meth"}, {ERR_FUNC(ENGINE_F_ENGINE_GET_PKEY_METH), "ENGINE_get_pkey_meth"}, {ERR_FUNC(ENGINE_F_ENGINE_GET_PREV), "ENGINE_get_prev"}, {ERR_FUNC(ENGINE_F_ENGINE_INIT), "ENGINE_init"}, diff --git a/crypto/engine/eng_int.h b/crypto/engine/eng_int.h index d93f5e5b17..8630597fe0 100644 --- a/crypto/engine/eng_int.h +++ b/crypto/engine/eng_int.h @@ -166,6 +166,8 @@ struct engine_st ENGINE_DIGESTS_PTR digests; /* Public key handling via this callback */ ENGINE_PKEY_METHS_PTR pkey_meths; + /* ASN1 public key handling via this callback */ + ENGINE_PKEY_ASN1_METHS_PTR pkey_asn1_meths; ENGINE_GEN_INT_FUNC_PTR destroy; diff --git a/crypto/engine/engine.h b/crypto/engine/engine.h index 7285c004c4..803ebf31b2 100644 --- a/crypto/engine/engine.h +++ b/crypto/engine/engine.h @@ -294,6 +294,7 @@ typedef EVP_PKEY * (*ENGINE_LOAD_KEY_PTR)(ENGINE *, const char *, typedef int (*ENGINE_CIPHERS_PTR)(ENGINE *, const EVP_CIPHER **, const int **, int); typedef int (*ENGINE_DIGESTS_PTR)(ENGINE *, const EVP_MD **, const int **, int); typedef int (*ENGINE_PKEY_METHS_PTR)(ENGINE *, EVP_PKEY_METHOD **, const int **, int); +typedef int (*ENGINE_PKEY_ASN1_METHS_PTR)(ENGINE *, EVP_PKEY_ASN1_METHOD **, const int **, int); /* STRUCTURE functions ... all of these functions deal with pointers to ENGINE * structures where the pointers have a "structural reference". This means that * their reference is to allowed access to the structure but it does not imply @@ -467,6 +468,7 @@ int ENGINE_set_load_pubkey_function(ENGINE *e, ENGINE_LOAD_KEY_PTR loadpub_f); int ENGINE_set_ciphers(ENGINE *e, ENGINE_CIPHERS_PTR f); int ENGINE_set_digests(ENGINE *e, ENGINE_DIGESTS_PTR f); int ENGINE_set_pkey_meths(ENGINE *e, ENGINE_PKEY_METHS_PTR f); +int ENGINE_set_pkey_asn1_meths(ENGINE *e, ENGINE_PKEY_ASN1_METHS_PTR f); int ENGINE_set_flags(ENGINE *e, int flags); int ENGINE_set_cmd_defns(ENGINE *e, const ENGINE_CMD_DEFN *defns); /* These functions allow control over any per-structure ENGINE data. */ @@ -503,9 +505,11 @@ ENGINE_LOAD_KEY_PTR ENGINE_get_load_pubkey_function(const ENGINE *e); ENGINE_CIPHERS_PTR ENGINE_get_ciphers(const ENGINE *e); ENGINE_DIGESTS_PTR ENGINE_get_digests(const ENGINE *e); ENGINE_PKEY_METHS_PTR ENGINE_get_pkey_meths(const ENGINE *e); +ENGINE_PKEY_ASN1_METHS_PTR ENGINE_get_pkey_asn1_meths(const ENGINE *e); const EVP_CIPHER *ENGINE_get_cipher(ENGINE *e, int nid); const EVP_MD *ENGINE_get_digest(ENGINE *e, int nid); const EVP_PKEY_METHOD *ENGINE_get_pkey_meth(ENGINE *e, int nid); +const EVP_PKEY_ASN1_METHOD *ENGINE_get_pkey_asn1_meth(ENGINE *e, int nid); const ENGINE_CMD_DEFN *ENGINE_get_cmd_defns(const ENGINE *e); int ENGINE_get_flags(const ENGINE *e); @@ -727,6 +731,7 @@ void ERR_load_ENGINE_strings(void); #define ENGINE_F_ENGINE_GET_DEFAULT_TYPE 177 #define ENGINE_F_ENGINE_GET_DIGEST 186 #define ENGINE_F_ENGINE_GET_NEXT 115 +#define ENGINE_F_ENGINE_GET_PKEY_ASN1_METH 193 #define ENGINE_F_ENGINE_GET_PKEY_METH 192 #define ENGINE_F_ENGINE_GET_PREV 116 #define ENGINE_F_ENGINE_INIT 119 diff --git a/crypto/engine/tb_asnmth.c b/crypto/engine/tb_asnmth.c new file mode 100644 index 0000000000..b2363a7f00 --- /dev/null +++ b/crypto/engine/tb_asnmth.c @@ -0,0 +1,166 @@ +/* ==================================================================== + * Copyright (c) 2006 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * 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 + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * licensing@OpenSSL.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ + +#include "eng_int.h" + +/* 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'. */ +/* #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); + } + +static void engine_unregister_all_pkey_asn1_meths(void) + { + 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; + } + +void ENGINE_register_all_pkey_asn1_meths() + { + ENGINE *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 + * table (ie. try to get a functional reference from the tabled structural + * 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); + } + +/* 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; + } + +/* 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; + } + +/* 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; + } + +/* 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); + } + } + } + } -- 2.25.1