• Home
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
1 /* crypto/objects/obj_xref.c */
2 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
3  * project 2006.
4  */
5 /* ====================================================================
6  * Copyright (c) 2006 The OpenSSL Project.  All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  *
12  * 1. Redistributions of source code must retain the above copyright
13  *    notice, this list of conditions and the following disclaimer.
14  *
15  * 2. Redistributions in binary form must reproduce the above copyright
16  *    notice, this list of conditions and the following disclaimer in
17  *    the documentation and/or other materials provided with the
18  *    distribution.
19  *
20  * 3. All advertising materials mentioning features or use of this
21  *    software must display the following acknowledgment:
22  *    "This product includes software developed by the OpenSSL Project
23  *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
24  *
25  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
26  *    endorse or promote products derived from this software without
27  *    prior written permission. For written permission, please contact
28  *    licensing@OpenSSL.org.
29  *
30  * 5. Products derived from this software may not be called "OpenSSL"
31  *    nor may "OpenSSL" appear in their names without prior written
32  *    permission of the OpenSSL Project.
33  *
34  * 6. Redistributions of any form whatsoever must retain the following
35  *    acknowledgment:
36  *    "This product includes software developed by the OpenSSL Project
37  *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
38  *
39  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
40  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
41  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
42  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
43  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
44  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
45  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
46  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
48  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
49  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
50  * OF THE POSSIBILITY OF SUCH DAMAGE.
51  * ====================================================================
52  *
53  * This product includes cryptographic software written by Eric Young
54  * (eay@cryptsoft.com).  This product includes software written by Tim
55  * Hudson (tjh@cryptsoft.com).
56  *
57  */
58 
59 #include <openssl/objects.h>
60 #include "obj_xref.h"
61 
62 DECLARE_STACK_OF(nid_triple)
63 STACK_OF(nid_triple) *sig_app, *sigx_app;
64 
sig_cmp(const nid_triple * a,const nid_triple * b)65 static int sig_cmp(const nid_triple *a, const nid_triple *b)
66 	{
67 	return a->sign_id - b->sign_id;
68 	}
69 
70 DECLARE_OBJ_BSEARCH_CMP_FN(nid_triple, nid_triple, sig);
71 IMPLEMENT_OBJ_BSEARCH_CMP_FN(nid_triple, nid_triple, sig);
72 
sig_sk_cmp(const nid_triple * const * a,const nid_triple * const * b)73 static int sig_sk_cmp(const nid_triple * const *a, const nid_triple * const *b)
74 	{
75 	return (*a)->sign_id - (*b)->sign_id;
76 	}
77 
78 DECLARE_OBJ_BSEARCH_CMP_FN(const nid_triple *, const nid_triple *, sigx);
79 
sigx_cmp(const nid_triple * const * a,const nid_triple * const * b)80 static int sigx_cmp(const nid_triple * const *a, const nid_triple * const *b)
81 	{
82 	int ret;
83 	ret = (*a)->hash_id - (*b)->hash_id;
84 	if (ret)
85 		return ret;
86 	return (*a)->pkey_id - (*b)->pkey_id;
87 	}
88 
89 IMPLEMENT_OBJ_BSEARCH_CMP_FN(const nid_triple *, const nid_triple *, sigx);
90 
OBJ_find_sigid_algs(int signid,int * pdig_nid,int * ppkey_nid)91 int OBJ_find_sigid_algs(int signid, int *pdig_nid, int *ppkey_nid)
92 	{
93 	nid_triple tmp;
94 	const nid_triple *rv = NULL;
95 	tmp.sign_id = signid;
96 
97 	if (sig_app)
98 		{
99 		int idx = sk_nid_triple_find(sig_app, &tmp);
100 		if (idx >= 0)
101 			rv = sk_nid_triple_value(sig_app, idx);
102 		}
103 
104 #ifndef OBJ_XREF_TEST2
105 	if (rv == NULL)
106 		{
107 		rv = OBJ_bsearch_sig(&tmp, sigoid_srt,
108 				 sizeof(sigoid_srt) / sizeof(nid_triple));
109 		}
110 #endif
111 	if (rv == NULL)
112 		return 0;
113 	if (pdig_nid)
114 		*pdig_nid = rv->hash_id;
115 	if (ppkey_nid)
116 		*ppkey_nid = rv->pkey_id;
117 	return 1;
118 	}
119 
OBJ_find_sigid_by_algs(int * psignid,int dig_nid,int pkey_nid)120 int OBJ_find_sigid_by_algs(int *psignid, int dig_nid, int pkey_nid)
121 	{
122 	nid_triple tmp;
123 	const nid_triple *t=&tmp;
124 	const nid_triple **rv = NULL;
125 
126 	tmp.hash_id = dig_nid;
127 	tmp.pkey_id = pkey_nid;
128 
129 	if (sigx_app)
130 		{
131 		int idx = sk_nid_triple_find(sigx_app, &tmp);
132 		if (idx >= 0)
133 			{
134 			t = sk_nid_triple_value(sigx_app, idx);
135 			rv = &t;
136 			}
137 		}
138 
139 #ifndef OBJ_XREF_TEST2
140 	if (rv == NULL)
141 		{
142 		rv = OBJ_bsearch_sigx(&t, sigoid_srt_xref,
143 				 sizeof(sigoid_srt_xref) / sizeof(nid_triple *)
144 				 );
145 		}
146 #endif
147 	if (rv == NULL)
148 		return 0;
149 	if (psignid)
150 		*psignid = (*rv)->sign_id;
151 	return 1;
152 	}
153 
OBJ_add_sigid(int signid,int dig_id,int pkey_id)154 int OBJ_add_sigid(int signid, int dig_id, int pkey_id)
155 	{
156 	nid_triple *ntr;
157 	if (!sig_app)
158 		sig_app = sk_nid_triple_new(sig_sk_cmp);
159 	if (!sig_app)
160 		return 0;
161 	if (!sigx_app)
162 		sigx_app = sk_nid_triple_new(sigx_cmp);
163 	if (!sigx_app)
164 		return 0;
165 	ntr = OPENSSL_malloc(sizeof(int) * 3);
166 	if (!ntr)
167 		return 0;
168 	ntr->sign_id = signid;
169 	ntr->hash_id = dig_id;
170 	ntr->pkey_id = pkey_id;
171 
172 	if (!sk_nid_triple_push(sig_app, ntr))
173 		{
174 		OPENSSL_free(ntr);
175 		return 0;
176 		}
177 
178 	if (!sk_nid_triple_push(sigx_app, ntr))
179 		return 0;
180 
181 	sk_nid_triple_sort(sig_app);
182 	sk_nid_triple_sort(sigx_app);
183 
184 	return 1;
185 	}
186 
sid_free(nid_triple * tt)187 static void sid_free(nid_triple *tt)
188 	{
189 	OPENSSL_free(tt);
190 	}
191 
OBJ_sigid_free(void)192 void OBJ_sigid_free(void)
193 	{
194 	if (sig_app)
195 		{
196 		sk_nid_triple_pop_free(sig_app, sid_free);
197 		sig_app = NULL;
198 		}
199 	if (sigx_app)
200 		{
201 		sk_nid_triple_free(sigx_app);
202 		sigx_app = NULL;
203 		}
204 	}
205 
206 #ifdef OBJ_XREF_TEST
207 
main()208 main()
209 	{
210 	int n1, n2, n3;
211 
212 	int i, rv;
213 #ifdef OBJ_XREF_TEST2
214 	for (i = 0; i <	sizeof(sigoid_srt) / sizeof(nid_triple); i++)
215 		{
216 		OBJ_add_sigid(sigoid_srt[i][0], sigoid_srt[i][1],
217 				sigoid_srt[i][2]);
218 		}
219 #endif
220 
221 	for (i = 0; i <	sizeof(sigoid_srt) / sizeof(nid_triple); i++)
222 		{
223 		n1 = sigoid_srt[i][0];
224 		rv = OBJ_find_sigid_algs(n1, &n2, &n3);
225 		printf("Forward: %d, %s %s %s\n", rv,
226 			OBJ_nid2ln(n1), OBJ_nid2ln(n2), OBJ_nid2ln(n3));
227 		n1=0;
228 		rv = OBJ_find_sigid_by_algs(&n1, n2, n3);
229 		printf("Reverse: %d, %s %s %s\n", rv,
230 			OBJ_nid2ln(n1), OBJ_nid2ln(n2), OBJ_nid2ln(n3));
231 		}
232 	}
233 
234 #endif
235