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1 | /* originally from crypto/x509/by_file.c */ |
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 | /* Added code to use a memory object as opposed to a file for lookup purposes. */ | |
60 | ||
61 | #include <string.h> | |
62 | ||
63 | #include <openssl/bio.h> | |
64 | #include <openssl/err.h> | |
65 | #include <openssl/pem.h> | |
66 | #include <openssl/ssl.h> | |
67 | #include <openssl/x509_vfy.h> | |
68 | ||
69 | static int by_mem_ctrl(X509_LOOKUP *, int, const char *, long, char **); | |
70 | static int X509_load_cert_crl_mem(X509_LOOKUP *ctx, const char *str, int type); | |
71 | ||
72 | X509_LOOKUP_METHOD x509_mem_lookup = | |
73 | { | |
74 | "Memory from user provided string", | |
75 | NULL, | |
76 | NULL, | |
77 | NULL, | |
78 | NULL, | |
79 | by_mem_ctrl, | |
80 | NULL, | |
81 | NULL, | |
82 | NULL, | |
83 | NULL | |
84 | }; | |
85 | ||
86 | static X509_LOOKUP_METHOD * X509_LOOKUP_mem() | |
87 | { | |
88 | return (&x509_mem_lookup); | |
89 | } | |
90 | ||
91 | static int by_mem_ctrl(X509_LOOKUP *ctx, int cmd, const char * str, long argl, char ** ret) | |
92 | { | |
93 | int status = 0; | |
94 | if (cmd == X509_L_FILE_LOAD) | |
95 | { | |
96 | if (argl == X509_FILETYPE_PEM) | |
97 | return X509_load_cert_crl_mem(ctx, str, X509_FILETYPE_PEM) != 0; | |
98 | } | |
99 | return status; | |
100 | } | |
101 | ||
102 | static int X509_load_cert_crl_mem(X509_LOOKUP *ctx, const char *str, int type) | |
103 | { | |
104 | BIO *in = NULL; | |
105 | int status = 0; | |
106 | int count = 0; | |
107 | int i; | |
108 | X509 *x = NULL; | |
109 | ||
110 | if (str == NULL) return 1; | |
111 | in = BIO_new(BIO_s_mem()); | |
112 | if ((in == NULL) || (BIO_write(in, str, strlen(str)) != strlen(str)) || type != X509_FILETYPE_PEM) | |
113 | { | |
114 | /* this error isn't the same as the real file one, but it'll serve the same purpose */ | |
115 | X509err(X509_F_X509_LOAD_CERT_FILE,ERR_R_SYS_LIB); | |
116 | goto err; | |
117 | } | |
118 | ||
119 | for (;;) | |
120 | { | |
121 | x=PEM_read_bio_X509_AUX(in,NULL,NULL,NULL); | |
122 | if (x == NULL) | |
123 | { | |
124 | if ((ERR_GET_REASON(ERR_peek_last_error()) == | |
125 | PEM_R_NO_START_LINE) && (count > 0)) | |
126 | { | |
127 | ERR_clear_error(); | |
128 | break; | |
129 | } | |
130 | else | |
131 | { | |
132 | X509err(X509_F_X509_LOAD_CERT_FILE, | |
133 | ERR_R_PEM_LIB); | |
134 | goto err; | |
135 | } | |
136 | } | |
137 | i=X509_STORE_add_cert(ctx->store_ctx,x); | |
138 | if (!i) goto err; | |
139 | count++; | |
140 | X509_free(x); | |
141 | x=NULL; | |
142 | } | |
143 | status=count; | |
144 | ||
145 | err: | |
146 | if (x != NULL) X509_free(x); | |
147 | if (in != NULL) BIO_free(in); | |
148 | return status; | |
149 | ||
150 | } | |
151 | ||
152 | static int X509_STORE_load_mem(X509_STORE *ctx, const char *str) | |
153 | { | |
154 | X509_LOOKUP *lookup; | |
155 | if (!str) return 1; | |
156 | ||
157 | lookup = X509_STORE_add_lookup(ctx, X509_LOOKUP_mem()); | |
158 | if (lookup == NULL) return 0; | |
159 | if (X509_LOOKUP_ctrl(lookup,X509_L_FILE_LOAD,str,X509_FILETYPE_PEM, NULL) != 1) | |
160 | return 0; | |
161 | return 1; | |
162 | } | |
163 | int SSL_CTX_load_verify_locations_mem(SSL_CTX * ctx, const char *str) | |
164 | { | |
165 | return X509_STORE_load_mem(ctx->cert_store, str); | |
166 | } |