1 /* $OpenBSD: by_mem.c,v 1.4 2017/01/29 17:49:23 beck Exp $ */
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3  * All rights reserved.
4  *
5  * This package is an SSL implementation written
6  * by Eric Young (eay@cryptsoft.com).
7  * The implementation was written so as to conform with Netscapes SSL.
8  *
9  * This library is free for commercial and non-commercial use as long as
10  * the following conditions are aheared to.  The following conditions
11  * apply to all code found in this distribution, be it the RC4, RSA,
12  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
13  * included with this distribution is covered by the same copyright terms
14  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15  *
16  * Copyright remains Eric Young's, and as such any Copyright notices in
17  * the code are not to be removed.
18  * If this package is used in a product, Eric Young should be given attribution
19  * as the author of the parts of the library used.
20  * This can be in the form of a textual message at program startup or
21  * in documentation (online or textual) provided with the package.
22  *
23  * Redistribution and use in source and binary forms, with or without
24  * modification, are permitted provided that the following conditions
25  * are met:
26  * 1. Redistributions of source code must retain the copyright
27  *    notice, this list of conditions and the following disclaimer.
28  * 2. Redistributions in binary form must reproduce the above copyright
29  *    notice, this list of conditions and the following disclaimer in the
30  *    documentation and/or other materials provided with the distribution.
31  * 3. All advertising materials mentioning features or use of this software
32  *    must display the following acknowledgement:
33  *    "This product includes cryptographic software written by
34  *     Eric Young (eay@cryptsoft.com)"
35  *    The word 'cryptographic' can be left out if the rouines from the library
36  *    being used are not cryptographic related :-).
37  * 4. If you include any Windows specific code (or a derivative thereof) from
38  *    the apps directory (application code) you must include an acknowledgement:
39  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40  *
41  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51  * SUCH DAMAGE.
52  *
53  * The licence and distribution terms for any publically available version or
54  * derivative of this code cannot be changed.  i.e. this code cannot simply be
55  * copied and put under another distribution licence
56  * [including the GNU Public Licence.]
57  */
58 
59 #include "config.h"
60 
61 #ifndef HAVE_X509_LOOKUP_MEM
62 
63 #include <sys/uio.h>
64 #include <errno.h>
65 #include <stdio.h>
66 #include <time.h>
67 #include <unistd.h>
68 
69 #include <openssl/buffer.h>
70 #include <openssl/err.h>
71 #include <openssl/pem.h>
72 #include <openssl/lhash.h>
73 #include <openssl/x509.h>
74 
75 #define X509error(r) ERR_PUT_error(ERR_LIB_X509,(0xfff),(r),__FILE__,__LINE__)
76 
77 #define X509_L_MEM               3
78 
79 static int by_mem_ctrl(X509_LOOKUP *, int, const char *, long, char **);
80 
81 static X509_LOOKUP_METHOD *x509_mem_lookup;
82 
83 X509_LOOKUP_METHOD *
84 X509_LOOKUP_mem(void)
85 {
86 	if (x509_mem_lookup == NULL) {
87 		x509_mem_lookup = X509_LOOKUP_meth_new("Load cert from memory");
88 		X509_LOOKUP_meth_set_ctrl(x509_mem_lookup, by_mem_ctrl);
89 	}
90 	return (x509_mem_lookup);
91 }
92 
93 static int
94 by_mem_ctrl(X509_LOOKUP *lu, int cmd, const char *buf,
95     long type, char **ret)
96 {
97 	STACK_OF(X509_INFO)	*inf = NULL;
98 	const struct iovec	*iov;
99 	X509_INFO		*itmp;
100 	BIO			*in = NULL;
101 	int			 i, count = 0, ok = 0;
102 
103 	iov = (const struct iovec *)buf;
104 
105 	if (!(cmd == X509_L_MEM && type == X509_FILETYPE_PEM))
106 		goto done;
107 
108 	if ((in = BIO_new_mem_buf(iov->iov_base, iov->iov_len)) == NULL)
109 		goto done;
110 
111 	if ((inf = PEM_X509_INFO_read_bio(in, NULL, NULL, NULL)) == NULL)
112 		goto done;
113 
114 	for (i = 0; i < sk_X509_INFO_num(inf); i++) {
115 		itmp = sk_X509_INFO_value(inf, i);
116 		if (itmp->x509) {
117 			ok = X509_STORE_add_cert(X509_LOOKUP_get_store(lu), itmp->x509);
118 			if (!ok)
119 				goto done;
120 			count++;
121 		}
122 		if (itmp->crl) {
123 			ok = X509_STORE_add_crl(X509_LOOKUP_get_store(lu), itmp->crl);
124 			if (!ok)
125 				goto done;
126 			count++;
127 		}
128 	}
129 
130 	ok = count != 0;
131  done:
132 	if (count == 0)
133 		X509error(ERR_R_PEM_LIB);
134 	if (inf != NULL)
135 		sk_X509_INFO_pop_free(inf, X509_INFO_free);
136 	if (in != NULL)
137 		BIO_free(in);
138 	return (ok);
139 }
140 
141 #endif	/* HAVE_X509_LOOKUP_MEM */