diff options
Diffstat (limited to 'openssl/crypto/objects/obj_xref.c')
| -rw-r--r-- | openssl/crypto/objects/obj_xref.c | 231 |
1 files changed, 231 insertions, 0 deletions
diff --git a/openssl/crypto/objects/obj_xref.c b/openssl/crypto/objects/obj_xref.c new file mode 100644 index 00000000..152eca5c --- /dev/null +++ b/openssl/crypto/objects/obj_xref.c @@ -0,0 +1,231 @@ +/* crypto/objects/obj_xref.c */ +/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL + * project 2006. + */ +/* ==================================================================== + * 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 <openssl/objects.h> +#include "obj_xref.h" + +DECLARE_STACK_OF(nid_triple) +STACK_OF(nid_triple) *sig_app, *sigx_app; + +static int sig_cmp(const nid_triple *a, const nid_triple *b) + { + return a->sign_id - b->sign_id; + } + +DECLARE_OBJ_BSEARCH_CMP_FN(nid_triple, nid_triple, sig); +IMPLEMENT_OBJ_BSEARCH_CMP_FN(nid_triple, nid_triple, sig); + +static int sig_sk_cmp(const nid_triple * const *a, const nid_triple * const *b) + { + return (*a)->sign_id - (*b)->sign_id; + } + +DECLARE_OBJ_BSEARCH_CMP_FN(const nid_triple *, const nid_triple *, sigx); + +static int sigx_cmp(const nid_triple * const *a, const nid_triple * const *b) + { + int ret; + ret = (*a)->hash_id - (*b)->hash_id; + if (ret) + return ret; + return (*a)->pkey_id - (*b)->pkey_id; + } + +IMPLEMENT_OBJ_BSEARCH_CMP_FN(const nid_triple *, const nid_triple *, sigx); + +int OBJ_find_sigid_algs(int signid, int *pdig_nid, int *ppkey_nid) + { + nid_triple tmp; + const nid_triple *rv = NULL; + tmp.sign_id = signid; + + if (sig_app) + { + int idx = sk_nid_triple_find(sig_app, &tmp); + if (idx >= 0) + rv = sk_nid_triple_value(sig_app, idx); + } + +#ifndef OBJ_XREF_TEST2 + if (rv == NULL) + { + rv = OBJ_bsearch_sig(&tmp, sigoid_srt, + sizeof(sigoid_srt) / sizeof(nid_triple)); + } +#endif + if (rv == NULL) + return 0; + *pdig_nid = rv->hash_id; + *ppkey_nid = rv->pkey_id; + return 1; + } + +int OBJ_find_sigid_by_algs(int *psignid, int dig_nid, int pkey_nid) + { + nid_triple tmp; + const nid_triple *t=&tmp; + const nid_triple **rv = NULL; + + tmp.hash_id = dig_nid; + tmp.pkey_id = pkey_nid; + + if (sigx_app) + { + int idx = sk_nid_triple_find(sigx_app, &tmp); + if (idx >= 0) + { + t = sk_nid_triple_value(sigx_app, idx); + rv = &t; + } + } + +#ifndef OBJ_XREF_TEST2 + if (rv == NULL) + { + rv = OBJ_bsearch_sigx(&t, sigoid_srt_xref, + sizeof(sigoid_srt_xref) / sizeof(nid_triple *) + ); + } +#endif + if (rv == NULL) + return 0; + *psignid = (*rv)->sign_id; + return 1; + } + +int OBJ_add_sigid(int signid, int dig_id, int pkey_id) + { + nid_triple *ntr; + if (!sig_app) + sig_app = sk_nid_triple_new(sig_sk_cmp); + if (!sig_app) + return 0; + if (!sigx_app) + sigx_app = sk_nid_triple_new(sigx_cmp); + if (!sigx_app) + return 0; + ntr = OPENSSL_malloc(sizeof(int) * 3); + if (!ntr) + return 0; + ntr->sign_id = signid; + ntr->hash_id = dig_id; + ntr->pkey_id = pkey_id; + + if (!sk_nid_triple_push(sig_app, ntr)) + { + OPENSSL_free(ntr); + return 0; + } + + if (!sk_nid_triple_push(sigx_app, ntr)) + return 0; + + sk_nid_triple_sort(sig_app); + sk_nid_triple_sort(sigx_app); + + return 1; + } + +static void sid_free(nid_triple *tt) + { + OPENSSL_free(tt); + } + +void OBJ_sigid_free(void) + { + if (sig_app) + { + sk_nid_triple_pop_free(sig_app, sid_free); + sig_app = NULL; + } + if (sigx_app) + { + sk_nid_triple_free(sigx_app); + sigx_app = NULL; + } + } + +#ifdef OBJ_XREF_TEST + +main() + { + int n1, n2, n3; + + int i, rv; +#ifdef OBJ_XREF_TEST2 + for (i = 0; i < sizeof(sigoid_srt) / sizeof(nid_triple); i++) + { + OBJ_add_sigid(sigoid_srt[i][0], sigoid_srt[i][1], + sigoid_srt[i][2]); + } +#endif + + for (i = 0; i < sizeof(sigoid_srt) / sizeof(nid_triple); i++) + { + n1 = sigoid_srt[i][0]; + rv = OBJ_find_sigid_algs(n1, &n2, &n3); + printf("Forward: %d, %s %s %s\n", rv, + OBJ_nid2ln(n1), OBJ_nid2ln(n2), OBJ_nid2ln(n3)); + n1=0; + rv = OBJ_find_sigid_by_algs(&n1, n2, n3); + printf("Reverse: %d, %s %s %s\n", rv, + OBJ_nid2ln(n1), OBJ_nid2ln(n2), OBJ_nid2ln(n3)); + } + } + +#endif |