diff options
Diffstat (limited to 'src/lib/libcrypto/asn1/a_bytes.c')
| -rw-r--r-- | src/lib/libcrypto/asn1/a_bytes.c | 314 |
1 files changed, 314 insertions, 0 deletions
diff --git a/src/lib/libcrypto/asn1/a_bytes.c b/src/lib/libcrypto/asn1/a_bytes.c new file mode 100644 index 0000000000..92d630cdba --- /dev/null +++ b/src/lib/libcrypto/asn1/a_bytes.c | |||
| @@ -0,0 +1,314 @@ | |||
| 1 | /* crypto/asn1/a_bytes.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 | #include <stdio.h> | ||
| 60 | #include "cryptlib.h" | ||
| 61 | #include <openssl/asn1.h> | ||
| 62 | |||
| 63 | static int asn1_collate_primitive(ASN1_STRING *a, ASN1_const_CTX *c); | ||
| 64 | /* type is a 'bitmap' of acceptable string types. | ||
| 65 | */ | ||
| 66 | ASN1_STRING *d2i_ASN1_type_bytes(ASN1_STRING **a, const unsigned char **pp, | ||
| 67 | long length, int type) | ||
| 68 | { | ||
| 69 | ASN1_STRING *ret=NULL; | ||
| 70 | const unsigned char *p; | ||
| 71 | unsigned char *s; | ||
| 72 | long len; | ||
| 73 | int inf,tag,xclass; | ||
| 74 | int i=0; | ||
| 75 | |||
| 76 | p= *pp; | ||
| 77 | inf=ASN1_get_object(&p,&len,&tag,&xclass,length); | ||
| 78 | if (inf & 0x80) goto err; | ||
| 79 | |||
| 80 | if (tag >= 32) | ||
| 81 | { | ||
| 82 | i=ASN1_R_TAG_VALUE_TOO_HIGH; | ||
| 83 | goto err; | ||
| 84 | } | ||
| 85 | if (!(ASN1_tag2bit(tag) & type)) | ||
| 86 | { | ||
| 87 | i=ASN1_R_WRONG_TYPE; | ||
| 88 | goto err; | ||
| 89 | } | ||
| 90 | |||
| 91 | /* If a bit-string, exit early */ | ||
| 92 | if (tag == V_ASN1_BIT_STRING) | ||
| 93 | return(d2i_ASN1_BIT_STRING(a,pp,length)); | ||
| 94 | |||
| 95 | if ((a == NULL) || ((*a) == NULL)) | ||
| 96 | { | ||
| 97 | if ((ret=ASN1_STRING_new()) == NULL) return(NULL); | ||
| 98 | } | ||
| 99 | else | ||
| 100 | ret=(*a); | ||
| 101 | |||
| 102 | if (len != 0) | ||
| 103 | { | ||
| 104 | s=(unsigned char *)OPENSSL_malloc((int)len+1); | ||
| 105 | if (s == NULL) | ||
| 106 | { | ||
| 107 | i=ERR_R_MALLOC_FAILURE; | ||
| 108 | goto err; | ||
| 109 | } | ||
| 110 | memcpy(s,p,(int)len); | ||
| 111 | s[len]='\0'; | ||
| 112 | p+=len; | ||
| 113 | } | ||
| 114 | else | ||
| 115 | s=NULL; | ||
| 116 | |||
| 117 | if (ret->data != NULL) OPENSSL_free(ret->data); | ||
| 118 | ret->length=(int)len; | ||
| 119 | ret->data=s; | ||
| 120 | ret->type=tag; | ||
| 121 | if (a != NULL) (*a)=ret; | ||
| 122 | *pp=p; | ||
| 123 | return(ret); | ||
| 124 | err: | ||
| 125 | ASN1err(ASN1_F_D2I_ASN1_TYPE_BYTES,i); | ||
| 126 | if ((ret != NULL) && ((a == NULL) || (*a != ret))) | ||
| 127 | ASN1_STRING_free(ret); | ||
| 128 | return(NULL); | ||
| 129 | } | ||
| 130 | |||
| 131 | int i2d_ASN1_bytes(ASN1_STRING *a, unsigned char **pp, int tag, int xclass) | ||
| 132 | { | ||
| 133 | int ret,r,constructed; | ||
| 134 | unsigned char *p; | ||
| 135 | |||
| 136 | if (a == NULL) return(0); | ||
| 137 | |||
| 138 | if (tag == V_ASN1_BIT_STRING) | ||
| 139 | return(i2d_ASN1_BIT_STRING(a,pp)); | ||
| 140 | |||
| 141 | ret=a->length; | ||
| 142 | r=ASN1_object_size(0,ret,tag); | ||
| 143 | if (pp == NULL) return(r); | ||
| 144 | p= *pp; | ||
| 145 | |||
| 146 | if ((tag == V_ASN1_SEQUENCE) || (tag == V_ASN1_SET)) | ||
| 147 | constructed=1; | ||
| 148 | else | ||
| 149 | constructed=0; | ||
| 150 | ASN1_put_object(&p,constructed,ret,tag,xclass); | ||
| 151 | memcpy(p,a->data,a->length); | ||
| 152 | p+=a->length; | ||
| 153 | *pp= p; | ||
| 154 | return(r); | ||
| 155 | } | ||
| 156 | |||
| 157 | ASN1_STRING *d2i_ASN1_bytes(ASN1_STRING **a, const unsigned char **pp, | ||
| 158 | long length, int Ptag, int Pclass) | ||
| 159 | { | ||
| 160 | ASN1_STRING *ret=NULL; | ||
| 161 | const unsigned char *p; | ||
| 162 | unsigned char *s; | ||
| 163 | long len; | ||
| 164 | int inf,tag,xclass; | ||
| 165 | int i=0; | ||
| 166 | |||
| 167 | if ((a == NULL) || ((*a) == NULL)) | ||
| 168 | { | ||
| 169 | if ((ret=ASN1_STRING_new()) == NULL) return(NULL); | ||
| 170 | } | ||
| 171 | else | ||
| 172 | ret=(*a); | ||
| 173 | |||
| 174 | p= *pp; | ||
| 175 | inf=ASN1_get_object(&p,&len,&tag,&xclass,length); | ||
| 176 | if (inf & 0x80) | ||
| 177 | { | ||
| 178 | i=ASN1_R_BAD_OBJECT_HEADER; | ||
| 179 | goto err; | ||
| 180 | } | ||
| 181 | |||
| 182 | if (tag != Ptag) | ||
| 183 | { | ||
| 184 | i=ASN1_R_WRONG_TAG; | ||
| 185 | goto err; | ||
| 186 | } | ||
| 187 | |||
| 188 | if (inf & V_ASN1_CONSTRUCTED) | ||
| 189 | { | ||
| 190 | ASN1_const_CTX c; | ||
| 191 | |||
| 192 | c.pp=pp; | ||
| 193 | c.p=p; | ||
| 194 | c.inf=inf; | ||
| 195 | c.slen=len; | ||
| 196 | c.tag=Ptag; | ||
| 197 | c.xclass=Pclass; | ||
| 198 | c.max=(length == 0)?0:(p+length); | ||
| 199 | if (!asn1_collate_primitive(ret,&c)) | ||
| 200 | goto err; | ||
| 201 | else | ||
| 202 | { | ||
| 203 | p=c.p; | ||
| 204 | } | ||
| 205 | } | ||
| 206 | else | ||
| 207 | { | ||
| 208 | if (len != 0) | ||
| 209 | { | ||
| 210 | if ((ret->length < len) || (ret->data == NULL)) | ||
| 211 | { | ||
| 212 | if (ret->data != NULL) OPENSSL_free(ret->data); | ||
| 213 | s=(unsigned char *)OPENSSL_malloc((int)len + 1); | ||
| 214 | if (s == NULL) | ||
| 215 | { | ||
| 216 | i=ERR_R_MALLOC_FAILURE; | ||
| 217 | goto err; | ||
| 218 | } | ||
| 219 | } | ||
| 220 | else | ||
| 221 | s=ret->data; | ||
| 222 | memcpy(s,p,(int)len); | ||
| 223 | s[len] = '\0'; | ||
| 224 | p+=len; | ||
| 225 | } | ||
| 226 | else | ||
| 227 | { | ||
| 228 | s=NULL; | ||
| 229 | if (ret->data != NULL) OPENSSL_free(ret->data); | ||
| 230 | } | ||
| 231 | |||
| 232 | ret->length=(int)len; | ||
| 233 | ret->data=s; | ||
| 234 | ret->type=Ptag; | ||
| 235 | } | ||
| 236 | |||
| 237 | if (a != NULL) (*a)=ret; | ||
| 238 | *pp=p; | ||
| 239 | return(ret); | ||
| 240 | err: | ||
| 241 | if ((ret != NULL) && ((a == NULL) || (*a != ret))) | ||
| 242 | ASN1_STRING_free(ret); | ||
| 243 | ASN1err(ASN1_F_D2I_ASN1_BYTES,i); | ||
| 244 | return(NULL); | ||
| 245 | } | ||
| 246 | |||
| 247 | |||
| 248 | /* We are about to parse 0..n d2i_ASN1_bytes objects, we are to collapse | ||
| 249 | * them into the one structure that is then returned */ | ||
| 250 | /* There have been a few bug fixes for this function from | ||
| 251 | * Paul Keogh <paul.keogh@sse.ie>, many thanks to him */ | ||
| 252 | static int asn1_collate_primitive(ASN1_STRING *a, ASN1_const_CTX *c) | ||
| 253 | { | ||
| 254 | ASN1_STRING *os=NULL; | ||
| 255 | BUF_MEM b; | ||
| 256 | int num; | ||
| 257 | |||
| 258 | b.length=0; | ||
| 259 | b.max=0; | ||
| 260 | b.data=NULL; | ||
| 261 | |||
| 262 | if (a == NULL) | ||
| 263 | { | ||
| 264 | c->error=ERR_R_PASSED_NULL_PARAMETER; | ||
| 265 | goto err; | ||
| 266 | } | ||
| 267 | |||
| 268 | num=0; | ||
| 269 | for (;;) | ||
| 270 | { | ||
| 271 | if (c->inf & 1) | ||
| 272 | { | ||
| 273 | c->eos=ASN1_const_check_infinite_end(&c->p, | ||
| 274 | (long)(c->max-c->p)); | ||
| 275 | if (c->eos) break; | ||
| 276 | } | ||
| 277 | else | ||
| 278 | { | ||
| 279 | if (c->slen <= 0) break; | ||
| 280 | } | ||
| 281 | |||
| 282 | c->q=c->p; | ||
| 283 | if (d2i_ASN1_bytes(&os,&c->p,c->max-c->p,c->tag,c->xclass) | ||
| 284 | == NULL) | ||
| 285 | { | ||
| 286 | c->error=ERR_R_ASN1_LIB; | ||
| 287 | goto err; | ||
| 288 | } | ||
| 289 | |||
| 290 | if (!BUF_MEM_grow_clean(&b,num+os->length)) | ||
| 291 | { | ||
| 292 | c->error=ERR_R_BUF_LIB; | ||
| 293 | goto err; | ||
| 294 | } | ||
| 295 | memcpy(&(b.data[num]),os->data,os->length); | ||
| 296 | if (!(c->inf & 1)) | ||
| 297 | c->slen-=(c->p-c->q); | ||
| 298 | num+=os->length; | ||
| 299 | } | ||
| 300 | |||
| 301 | if (!asn1_const_Finish(c)) goto err; | ||
| 302 | |||
| 303 | a->length=num; | ||
| 304 | if (a->data != NULL) OPENSSL_free(a->data); | ||
| 305 | a->data=(unsigned char *)b.data; | ||
| 306 | if (os != NULL) ASN1_STRING_free(os); | ||
| 307 | return(1); | ||
| 308 | err: | ||
| 309 | ASN1err(ASN1_F_ASN1_COLLATE_PRIMITIVE,c->error); | ||
| 310 | if (os != NULL) ASN1_STRING_free(os); | ||
| 311 | if (b.data != NULL) OPENSSL_free(b.data); | ||
| 312 | return(0); | ||
| 313 | } | ||
| 314 | |||
