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d02b48c6 | 1 | /* crypto/x509/by_dir.c */ |
58964a49 | 2 | /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) |
d02b48c6 RE |
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 <stdio.h> | |
60 | #include <time.h> | |
61 | #include <errno.h> | |
d02b48c6 RE |
62 | |
63 | #include "cryptlib.h" | |
17f389bb AP |
64 | |
65 | #ifndef NO_SYS_TYPES_H | |
66 | # include <sys/types.h> | |
67 | #endif | |
68 | #ifdef MAC_OS_pre_X | |
69 | # include <stat.h> | |
70 | #else | |
71 | # include <sys/stat.h> | |
72 | #endif | |
73 | ||
ec577822 BM |
74 | #include <openssl/lhash.h> |
75 | #include <openssl/x509.h> | |
d02b48c6 RE |
76 | |
77 | typedef struct lookup_dir_st | |
78 | { | |
79 | BUF_MEM *buffer; | |
80 | int num_dirs; | |
81 | char **dirs; | |
82 | int *dirs_type; | |
83 | int num_dirs_alloced; | |
84 | } BY_DIR; | |
85 | ||
303c0028 BM |
86 | static int dir_ctrl(X509_LOOKUP *ctx, int cmd, const char *argp, long argl, |
87 | char **ret); | |
d02b48c6 RE |
88 | static int new_dir(X509_LOOKUP *lu); |
89 | static void free_dir(X509_LOOKUP *lu); | |
e778802f | 90 | static int add_cert_dir(BY_DIR *ctx,const char *dir,int type); |
d02b48c6 RE |
91 | static int get_cert_by_subject(X509_LOOKUP *xl,int type,X509_NAME *name, |
92 | X509_OBJECT *ret); | |
d02b48c6 RE |
93 | X509_LOOKUP_METHOD x509_dir_lookup= |
94 | { | |
95 | "Load certs from files in a directory", | |
96 | new_dir, /* new */ | |
97 | free_dir, /* free */ | |
98 | NULL, /* init */ | |
99 | NULL, /* shutdown */ | |
100 | dir_ctrl, /* ctrl */ | |
101 | get_cert_by_subject, /* get_by_subject */ | |
102 | NULL, /* get_by_issuer_serial */ | |
103 | NULL, /* get_by_fingerprint */ | |
104 | NULL, /* get_by_alias */ | |
105 | }; | |
106 | ||
6b691a5c | 107 | X509_LOOKUP_METHOD *X509_LOOKUP_hash_dir(void) |
d02b48c6 RE |
108 | { |
109 | return(&x509_dir_lookup); | |
110 | } | |
111 | ||
303c0028 | 112 | static int dir_ctrl(X509_LOOKUP *ctx, int cmd, const char *argp, long argl, |
6b691a5c | 113 | char **retp) |
d02b48c6 RE |
114 | { |
115 | int ret=0; | |
116 | BY_DIR *ld; | |
117 | char *dir; | |
118 | ||
119 | ld=(BY_DIR *)ctx->method_data; | |
120 | ||
121 | switch (cmd) | |
122 | { | |
123 | case X509_L_ADD_DIR: | |
124 | if (argl == X509_FILETYPE_DEFAULT) | |
125 | { | |
126 | ret=add_cert_dir(ld,X509_get_default_cert_dir(), | |
127 | X509_FILETYPE_PEM); | |
128 | if (!ret) | |
129 | { | |
130 | X509err(X509_F_DIR_CTRL,X509_R_LOADING_CERT_DIR); | |
131 | } | |
132 | else | |
133 | { | |
134 | dir=(char *)Getenv(X509_get_default_cert_dir_env()); | |
135 | ret=add_cert_dir(ld,dir,X509_FILETYPE_PEM); | |
136 | } | |
137 | } | |
138 | else | |
139 | ret=add_cert_dir(ld,argp,(int)argl); | |
140 | break; | |
141 | } | |
142 | return(ret); | |
143 | } | |
144 | ||
6b691a5c | 145 | static int new_dir(X509_LOOKUP *lu) |
d02b48c6 RE |
146 | { |
147 | BY_DIR *a; | |
148 | ||
149 | if ((a=(BY_DIR *)Malloc(sizeof(BY_DIR))) == NULL) | |
150 | return(0); | |
151 | if ((a->buffer=BUF_MEM_new()) == NULL) | |
152 | { | |
153 | Free(a); | |
154 | return(0); | |
155 | } | |
156 | a->num_dirs=0; | |
157 | a->dirs=NULL; | |
158 | a->dirs_type=NULL; | |
159 | a->num_dirs_alloced=0; | |
160 | lu->method_data=(char *)a; | |
161 | return(1); | |
162 | } | |
163 | ||
6b691a5c | 164 | static void free_dir(X509_LOOKUP *lu) |
d02b48c6 RE |
165 | { |
166 | BY_DIR *a; | |
167 | int i; | |
168 | ||
169 | a=(BY_DIR *)lu->method_data; | |
170 | for (i=0; i<a->num_dirs; i++) | |
171 | if (a->dirs[i] != NULL) Free(a->dirs[i]); | |
172 | if (a->dirs != NULL) Free(a->dirs); | |
173 | if (a->dirs_type != NULL) Free(a->dirs_type); | |
174 | if (a->buffer != NULL) BUF_MEM_free(a->buffer); | |
175 | Free(a); | |
176 | } | |
177 | ||
6b691a5c | 178 | static int add_cert_dir(BY_DIR *ctx, const char *dir, int type) |
d02b48c6 RE |
179 | { |
180 | int j,len; | |
181 | int *ip; | |
e778802f | 182 | const char *s,*ss,*p; |
d02b48c6 RE |
183 | char **pp; |
184 | ||
2c1ef383 BL |
185 | if (dir == NULL || !*dir) |
186 | { | |
187 | X509err(X509_F_ADD_CERT_DIR,X509_R_INVALID_DIRECTORY); | |
188 | return 0; | |
189 | } | |
d02b48c6 RE |
190 | |
191 | s=dir; | |
192 | p=s; | |
193 | for (;;) | |
194 | { | |
195 | if ((*p == LIST_SEPARATOR_CHAR) || (*p == '\0')) | |
196 | { | |
197 | ss=s; | |
198 | s=p+1; | |
199 | len=(int)(p-ss); | |
6cda1005 | 200 | if (len == 0) continue; |
d02b48c6 RE |
201 | for (j=0; j<ctx->num_dirs; j++) |
202 | if (strncmp(ctx->dirs[j],ss,(unsigned int)len) == 0) | |
203 | continue; | |
204 | if (ctx->num_dirs_alloced < (ctx->num_dirs+1)) | |
205 | { | |
206 | ctx->num_dirs_alloced+=10; | |
207 | pp=(char **)Malloc(ctx->num_dirs_alloced* | |
208 | sizeof(char *)); | |
209 | ip=(int *)Malloc(ctx->num_dirs_alloced* | |
210 | sizeof(int)); | |
211 | if ((pp == NULL) || (ip == NULL)) | |
212 | { | |
213 | X509err(X509_F_ADD_CERT_DIR,ERR_R_MALLOC_FAILURE); | |
214 | return(0); | |
215 | } | |
216 | memcpy(pp,ctx->dirs,(ctx->num_dirs_alloced-10)* | |
217 | sizeof(char *)); | |
218 | memcpy(ip,ctx->dirs_type,(ctx->num_dirs_alloced-10)* | |
219 | sizeof(int)); | |
220 | if (ctx->dirs != NULL) | |
221 | Free((char *)ctx->dirs); | |
222 | if (ctx->dirs_type != NULL) | |
223 | Free((char *)ctx->dirs_type); | |
224 | ctx->dirs=pp; | |
225 | ctx->dirs_type=ip; | |
226 | } | |
227 | ctx->dirs_type[ctx->num_dirs]=type; | |
228 | ctx->dirs[ctx->num_dirs]=(char *)Malloc((unsigned int)len+1); | |
229 | if (ctx->dirs[ctx->num_dirs] == NULL) return(0); | |
230 | strncpy(ctx->dirs[ctx->num_dirs],ss,(unsigned int)len); | |
231 | ctx->dirs[ctx->num_dirs][len]='\0'; | |
232 | ctx->num_dirs++; | |
233 | } | |
234 | if (*p == '\0') break; | |
235 | p++; | |
236 | } | |
237 | return(1); | |
238 | } | |
239 | ||
6b691a5c UM |
240 | static int get_cert_by_subject(X509_LOOKUP *xl, int type, X509_NAME *name, |
241 | X509_OBJECT *ret) | |
d02b48c6 RE |
242 | { |
243 | BY_DIR *ctx; | |
58964a49 RE |
244 | union { |
245 | struct { | |
246 | X509 st_x509; | |
247 | X509_CINF st_x509_cinf; | |
248 | } x509; | |
249 | struct { | |
250 | X509_CRL st_crl; | |
251 | X509_CRL_INFO st_crl_info; | |
252 | } crl; | |
253 | } data; | |
d02b48c6 RE |
254 | int ok=0; |
255 | int i,j,k; | |
256 | unsigned long h; | |
257 | BUF_MEM *b=NULL; | |
258 | struct stat st; | |
259 | X509_OBJECT stmp,*tmp; | |
e778802f | 260 | const char *postfix=""; |
d02b48c6 RE |
261 | |
262 | if (name == NULL) return(0); | |
263 | ||
d02b48c6 | 264 | stmp.type=type; |
58964a49 RE |
265 | if (type == X509_LU_X509) |
266 | { | |
267 | data.x509.st_x509.cert_info= &data.x509.st_x509_cinf; | |
268 | data.x509.st_x509_cinf.subject=name; | |
269 | stmp.data.x509= &data.x509.st_x509; | |
270 | postfix=""; | |
271 | } | |
272 | else if (type == X509_LU_CRL) | |
273 | { | |
274 | data.crl.st_crl.crl= &data.crl.st_crl_info; | |
275 | data.crl.st_crl_info.issuer=name; | |
276 | stmp.data.crl= &data.crl.st_crl; | |
277 | postfix="r"; | |
278 | } | |
279 | else | |
280 | { | |
281 | X509err(X509_F_GET_CERT_BY_SUBJECT,X509_R_WRONG_LOOKUP_TYPE); | |
282 | goto finish; | |
283 | } | |
d02b48c6 RE |
284 | |
285 | if ((b=BUF_MEM_new()) == NULL) | |
286 | { | |
287 | X509err(X509_F_GET_CERT_BY_SUBJECT,ERR_R_BUF_LIB); | |
288 | goto finish; | |
289 | } | |
290 | ||
291 | ctx=(BY_DIR *)xl->method_data; | |
292 | ||
293 | h=X509_NAME_hash(name); | |
294 | for (i=0; i<ctx->num_dirs; i++) | |
295 | { | |
58964a49 | 296 | j=strlen(ctx->dirs[i])+1+8+6+1+1; |
d02b48c6 RE |
297 | if (!BUF_MEM_grow(b,j)) |
298 | { | |
299 | X509err(X509_F_GET_CERT_BY_SUBJECT,ERR_R_MALLOC_FAILURE); | |
300 | goto finish; | |
301 | } | |
302 | k=0; | |
303 | for (;;) | |
304 | { | |
58964a49 RE |
305 | sprintf(b->data,"%s/%08lx.%s%d",ctx->dirs[i],h, |
306 | postfix,k); | |
d02b48c6 RE |
307 | k++; |
308 | if (stat(b->data,&st) < 0) | |
309 | break; | |
310 | /* found one. */ | |
58964a49 RE |
311 | if (type == X509_LU_X509) |
312 | { | |
313 | if ((X509_load_cert_file(xl,b->data, | |
314 | ctx->dirs_type[i])) == 0) | |
315 | break; | |
316 | } | |
317 | else if (type == X509_LU_CRL) | |
318 | { | |
319 | if ((X509_load_crl_file(xl,b->data, | |
320 | ctx->dirs_type[i])) == 0) | |
d02b48c6 | 321 | break; |
58964a49 RE |
322 | } |
323 | /* else case will caught higher up */ | |
d02b48c6 RE |
324 | } |
325 | ||
326 | /* we have added it to the cache so now pull | |
327 | * it out again */ | |
328 | CRYPTO_r_lock(CRYPTO_LOCK_X509_STORE); | |
9d1a01be | 329 | tmp=(X509_OBJECT *)lh_retrieve(xl->store_ctx->certs,&stmp); |
d02b48c6 RE |
330 | CRYPTO_r_unlock(CRYPTO_LOCK_X509_STORE); |
331 | ||
332 | if (tmp != NULL) | |
333 | { | |
334 | ok=1; | |
335 | ret->type=tmp->type; | |
58964a49 RE |
336 | memcpy(&ret->data,&tmp->data,sizeof(ret->data)); |
337 | /* If we were going to up the reference count, | |
338 | * we would need to do it on a perl 'type' | |
339 | * basis */ | |
d02b48c6 RE |
340 | /* CRYPTO_add(&tmp->data.x509->references,1, |
341 | CRYPTO_LOCK_X509);*/ | |
342 | goto finish; | |
343 | } | |
344 | } | |
345 | finish: | |
346 | if (b != NULL) BUF_MEM_free(b); | |
347 | return(ok); | |
348 | } | |
349 |