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| 1 /* crypto/asn1/a_set.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_mac.h> | |
| 62 | |
| 63 #ifndef NO_ASN1_OLD | |
| 64 | |
| 65 typedef struct | |
| 66 { | |
| 67 unsigned char *pbData; | |
| 68 int cbData; | |
| 69 } MYBLOB; | |
| 70 | |
| 71 /* SetBlobCmp | |
| 72 * This function compares two elements of SET_OF block | |
| 73 */ | |
| 74 static int SetBlobCmp(const void *elem1, const void *elem2 ) | |
| 75 { | |
| 76 const MYBLOB *b1 = (const MYBLOB *)elem1; | |
| 77 const MYBLOB *b2 = (const MYBLOB *)elem2; | |
| 78 int r; | |
| 79 | |
| 80 r = memcmp(b1->pbData, b2->pbData, | |
| 81 b1->cbData < b2->cbData ? b1->cbData : b2->cbData); | |
| 82 if(r != 0) | |
| 83 return r; | |
| 84 return b1->cbData-b2->cbData; | |
| 85 } | |
| 86 | |
| 87 /* int is_set: if TRUE, then sort the contents (i.e. it isn't a SEQUENCE) */ | |
| 88 int i2d_ASN1_SET(STACK_OF(OPENSSL_BLOCK) *a, unsigned char **pp, | |
| 89 i2d_of_void *i2d, int ex_tag, int ex_class, | |
| 90 int is_set) | |
| 91 { | |
| 92 int ret=0,r; | |
| 93 int i; | |
| 94 unsigned char *p; | |
| 95 unsigned char *pStart, *pTempMem; | |
| 96 MYBLOB *rgSetBlob; | |
| 97 int totSize; | |
| 98 | |
| 99 if (a == NULL) return(0); | |
| 100 for (i=sk_OPENSSL_BLOCK_num(a)-1; i>=0; i--) | |
| 101 ret+=i2d(sk_OPENSSL_BLOCK_value(a,i),NULL); | |
| 102 r=ASN1_object_size(1,ret,ex_tag); | |
| 103 if (pp == NULL) return(r); | |
| 104 | |
| 105 p= *pp; | |
| 106 ASN1_put_object(&p,1,ret,ex_tag,ex_class); | |
| 107 | |
| 108 /* Modified by gp@nsj.co.jp */ | |
| 109 /* And then again by Ben */ | |
| 110 /* And again by Steve */ | |
| 111 | |
| 112 if(!is_set || (sk_OPENSSL_BLOCK_num(a) < 2)) | |
| 113 { | |
| 114 for (i=0; i<sk_OPENSSL_BLOCK_num(a); i++) | |
| 115 i2d(sk_OPENSSL_BLOCK_value(a,i),&p); | |
| 116 | |
| 117 *pp=p; | |
| 118 return(r); | |
| 119 } | |
| 120 | |
| 121 pStart = p; /* Catch the beg of Setblobs*/ | |
| 122 /* In this array we will store the SET blobs */ | |
| 123 rgSetBlob = OPENSSL_malloc(sk_OPENSSL_BLOCK_num(a) * sizeof(MYBL
OB)); | |
| 124 if (rgSetBlob == NULL) | |
| 125 { | |
| 126 ASN1err(ASN1_F_I2D_ASN1_SET,ERR_R_MALLOC_FAILURE); | |
| 127 return(0); | |
| 128 } | |
| 129 | |
| 130 for (i=0; i<sk_OPENSSL_BLOCK_num(a); i++) | |
| 131 { | |
| 132 rgSetBlob[i].pbData = p; /* catch each set encode blob */ | |
| 133 i2d(sk_OPENSSL_BLOCK_value(a,i),&p); | |
| 134 rgSetBlob[i].cbData = p - rgSetBlob[i].pbData; /* Length of this | |
| 135 SetBlob | |
| 136 */ | |
| 137 } | |
| 138 *pp=p; | |
| 139 totSize = p - pStart; /* This is the total size of all set blobs */ | |
| 140 | |
| 141 /* Now we have to sort the blobs. I am using a simple algo. | |
| 142 *Sort ptrs *Copy to temp-mem *Copy from temp-mem to user-mem*/ | |
| 143 qsort( rgSetBlob, sk_OPENSSL_BLOCK_num(a), sizeof(MYBLOB), SetBlobCmp); | |
| 144 if (!(pTempMem = OPENSSL_malloc(totSize))) | |
| 145 { | |
| 146 ASN1err(ASN1_F_I2D_ASN1_SET,ERR_R_MALLOC_FAILURE); | |
| 147 return(0); | |
| 148 } | |
| 149 | |
| 150 /* Copy to temp mem */ | |
| 151 p = pTempMem; | |
| 152 for(i=0; i<sk_OPENSSL_BLOCK_num(a); ++i) | |
| 153 { | |
| 154 memcpy(p, rgSetBlob[i].pbData, rgSetBlob[i].cbData); | |
| 155 p += rgSetBlob[i].cbData; | |
| 156 } | |
| 157 | |
| 158 /* Copy back to user mem*/ | |
| 159 memcpy(pStart, pTempMem, totSize); | |
| 160 OPENSSL_free(pTempMem); | |
| 161 OPENSSL_free(rgSetBlob); | |
| 162 | |
| 163 return(r); | |
| 164 } | |
| 165 | |
| 166 STACK_OF(OPENSSL_BLOCK) *d2i_ASN1_SET(STACK_OF(OPENSSL_BLOCK) **a, | |
| 167 const unsigned char **pp, | |
| 168 long length, d2i_of_void *d2i, | |
| 169 void (*free_func)(OPENSSL_BLOCK), int ex_tag, | |
| 170 int ex_class) | |
| 171 { | |
| 172 ASN1_const_CTX c; | |
| 173 STACK_OF(OPENSSL_BLOCK) *ret=NULL; | |
| 174 | |
| 175 if ((a == NULL) || ((*a) == NULL)) | |
| 176 { | |
| 177 if ((ret=sk_OPENSSL_BLOCK_new_null()) == NULL) | |
| 178 { | |
| 179 ASN1err(ASN1_F_D2I_ASN1_SET,ERR_R_MALLOC_FAILURE); | |
| 180 goto err; | |
| 181 } | |
| 182 } | |
| 183 else | |
| 184 ret=(*a); | |
| 185 | |
| 186 c.p= *pp; | |
| 187 c.max=(length == 0)?0:(c.p+length); | |
| 188 | |
| 189 c.inf=ASN1_get_object(&c.p,&c.slen,&c.tag,&c.xclass,c.max-c.p); | |
| 190 if (c.inf & 0x80) goto err; | |
| 191 if (ex_class != c.xclass) | |
| 192 { | |
| 193 ASN1err(ASN1_F_D2I_ASN1_SET,ASN1_R_BAD_CLASS); | |
| 194 goto err; | |
| 195 } | |
| 196 if (ex_tag != c.tag) | |
| 197 { | |
| 198 ASN1err(ASN1_F_D2I_ASN1_SET,ASN1_R_BAD_TAG); | |
| 199 goto err; | |
| 200 } | |
| 201 if ((c.slen+c.p) > c.max) | |
| 202 { | |
| 203 ASN1err(ASN1_F_D2I_ASN1_SET,ASN1_R_LENGTH_ERROR); | |
| 204 goto err; | |
| 205 } | |
| 206 /* check for infinite constructed - it can be as long | |
| 207 * as the amount of data passed to us */ | |
| 208 if (c.inf == (V_ASN1_CONSTRUCTED+1)) | |
| 209 c.slen=length+ *pp-c.p; | |
| 210 c.max=c.p+c.slen; | |
| 211 | |
| 212 while (c.p < c.max) | |
| 213 { | |
| 214 char *s; | |
| 215 | |
| 216 if (M_ASN1_D2I_end_sequence()) break; | |
| 217 /* XXX: This was called with 4 arguments, incorrectly, it seems | |
| 218 if ((s=func(NULL,&c.p,c.slen,c.max-c.p)) == NULL) */ | |
| 219 if ((s=d2i(NULL,&c.p,c.slen)) == NULL) | |
| 220 { | |
| 221 ASN1err(ASN1_F_D2I_ASN1_SET,ASN1_R_ERROR_PARSING_SET_ELE
MENT); | |
| 222 asn1_add_error(*pp,(int)(c.p- *pp)); | |
| 223 goto err; | |
| 224 } | |
| 225 if (!sk_OPENSSL_BLOCK_push(ret,s)) goto err; | |
| 226 } | |
| 227 if (a != NULL) (*a)=ret; | |
| 228 *pp=c.p; | |
| 229 return(ret); | |
| 230 err: | |
| 231 if ((ret != NULL) && ((a == NULL) || (*a != ret))) | |
| 232 { | |
| 233 if (free_func != NULL) | |
| 234 sk_OPENSSL_BLOCK_pop_free(ret,free_func); | |
| 235 else | |
| 236 sk_OPENSSL_BLOCK_free(ret); | |
| 237 } | |
| 238 return(NULL); | |
| 239 } | |
| 240 | |
| 241 #endif | |
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Chromium Code Reviews
Issue 2072073002:
Delete bundled copy of OpenSSL and replace with README. (Closed)
Base URL: https://chromium.googlesource.com/chromium/deps/openssl@master