155714Skris/* crypto/asn1/a_set.c */ 255714Skris/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 355714Skris * All rights reserved. 455714Skris * 555714Skris * This package is an SSL implementation written 655714Skris * by Eric Young (eay@cryptsoft.com). 755714Skris * The implementation was written so as to conform with Netscapes SSL. 855714Skris * 955714Skris * This library is free for commercial and non-commercial use as long as 1055714Skris * the following conditions are aheared to. The following conditions 1155714Skris * apply to all code found in this distribution, be it the RC4, RSA, 1255714Skris * lhash, DES, etc., code; not just the SSL code. The SSL documentation 1355714Skris * included with this distribution is covered by the same copyright terms 1455714Skris * except that the holder is Tim Hudson (tjh@cryptsoft.com). 1555714Skris * 1655714Skris * Copyright remains Eric Young's, and as such any Copyright notices in 1755714Skris * the code are not to be removed. 1855714Skris * If this package is used in a product, Eric Young should be given attribution 1955714Skris * as the author of the parts of the library used. 2055714Skris * This can be in the form of a textual message at program startup or 2155714Skris * in documentation (online or textual) provided with the package. 2255714Skris * 2355714Skris * Redistribution and use in source and binary forms, with or without 2455714Skris * modification, are permitted provided that the following conditions 2555714Skris * are met: 2655714Skris * 1. Redistributions of source code must retain the copyright 2755714Skris * notice, this list of conditions and the following disclaimer. 2855714Skris * 2. Redistributions in binary form must reproduce the above copyright 2955714Skris * notice, this list of conditions and the following disclaimer in the 3055714Skris * documentation and/or other materials provided with the distribution. 3155714Skris * 3. All advertising materials mentioning features or use of this software 3255714Skris * must display the following acknowledgement: 3355714Skris * "This product includes cryptographic software written by 3455714Skris * Eric Young (eay@cryptsoft.com)" 3555714Skris * The word 'cryptographic' can be left out if the rouines from the library 3655714Skris * being used are not cryptographic related :-). 3755714Skris * 4. If you include any Windows specific code (or a derivative thereof) from 3855714Skris * the apps directory (application code) you must include an acknowledgement: 3955714Skris * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 4055714Skris * 4155714Skris * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 4255714Skris * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 4355714Skris * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 4455714Skris * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 4555714Skris * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 4655714Skris * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 4755714Skris * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 4855714Skris * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 4955714Skris * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 5055714Skris * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 5155714Skris * SUCH DAMAGE. 5255714Skris * 5355714Skris * The licence and distribution terms for any publically available version or 5455714Skris * derivative of this code cannot be changed. i.e. this code cannot simply be 5555714Skris * copied and put under another distribution licence 5655714Skris * [including the GNU Public Licence.] 5755714Skris */ 5855714Skris 5955714Skris#include <stdio.h> 6055714Skris#include "cryptlib.h" 6155714Skris#include <openssl/asn1_mac.h> 6255714Skris 63109998Smarkm#ifndef NO_ASN1_OLD 64109998Smarkm 6555714Skristypedef struct 6655714Skris { 6755714Skris unsigned char *pbData; 6855714Skris int cbData; 6955714Skris } MYBLOB; 7055714Skris 7155714Skris/* SetBlobCmp 7255714Skris * This function compares two elements of SET_OF block 7355714Skris */ 7455714Skrisstatic int SetBlobCmp(const void *elem1, const void *elem2 ) 7555714Skris { 7655714Skris const MYBLOB *b1 = (const MYBLOB *)elem1; 7755714Skris const MYBLOB *b2 = (const MYBLOB *)elem2; 7855714Skris int r; 7955714Skris 8055714Skris r = memcmp(b1->pbData, b2->pbData, 8155714Skris b1->cbData < b2->cbData ? b1->cbData : b2->cbData); 8255714Skris if(r != 0) 8355714Skris return r; 8455714Skris return b1->cbData-b2->cbData; 8555714Skris } 8655714Skris 8755714Skris/* int is_set: if TRUE, then sort the contents (i.e. it isn't a SEQUENCE) */ 88238405Sjkimint i2d_ASN1_SET(STACK_OF(OPENSSL_BLOCK) *a, unsigned char **pp, 89238405Sjkim i2d_of_void *i2d, int ex_tag, int ex_class, 90238405Sjkim int is_set) 9155714Skris { 9255714Skris int ret=0,r; 9355714Skris int i; 9455714Skris unsigned char *p; 9555714Skris unsigned char *pStart, *pTempMem; 9655714Skris MYBLOB *rgSetBlob; 9755714Skris int totSize; 9855714Skris 9955714Skris if (a == NULL) return(0); 100238405Sjkim for (i=sk_OPENSSL_BLOCK_num(a)-1; i>=0; i--) 101238405Sjkim ret+=i2d(sk_OPENSSL_BLOCK_value(a,i),NULL); 10255714Skris r=ASN1_object_size(1,ret,ex_tag); 10355714Skris if (pp == NULL) return(r); 10455714Skris 10555714Skris p= *pp; 10655714Skris ASN1_put_object(&p,1,ret,ex_tag,ex_class); 10755714Skris 10855714Skris/* Modified by gp@nsj.co.jp */ 10955714Skris /* And then again by Ben */ 11055714Skris /* And again by Steve */ 11155714Skris 112238405Sjkim if(!is_set || (sk_OPENSSL_BLOCK_num(a) < 2)) 11355714Skris { 114238405Sjkim for (i=0; i<sk_OPENSSL_BLOCK_num(a); i++) 115238405Sjkim i2d(sk_OPENSSL_BLOCK_value(a,i),&p); 11655714Skris 11755714Skris *pp=p; 11855714Skris return(r); 11955714Skris } 12055714Skris 12155714Skris pStart = p; /* Catch the beg of Setblobs*/ 122160814Ssimon /* In this array we will store the SET blobs */ 123238405Sjkim rgSetBlob = OPENSSL_malloc(sk_OPENSSL_BLOCK_num(a) * sizeof(MYBLOB)); 124160814Ssimon if (rgSetBlob == NULL) 125160814Ssimon { 126160814Ssimon ASN1err(ASN1_F_I2D_ASN1_SET,ERR_R_MALLOC_FAILURE); 127160814Ssimon return(0); 128160814Ssimon } 12955714Skris 130238405Sjkim for (i=0; i<sk_OPENSSL_BLOCK_num(a); i++) 13155714Skris { 13255714Skris rgSetBlob[i].pbData = p; /* catch each set encode blob */ 133238405Sjkim i2d(sk_OPENSSL_BLOCK_value(a,i),&p); 13455714Skris rgSetBlob[i].cbData = p - rgSetBlob[i].pbData; /* Length of this 13555714SkrisSetBlob 13655714Skris*/ 13755714Skris } 13855714Skris *pp=p; 13955714Skris totSize = p - pStart; /* This is the total size of all set blobs */ 14055714Skris 14155714Skris /* Now we have to sort the blobs. I am using a simple algo. 14255714Skris *Sort ptrs *Copy to temp-mem *Copy from temp-mem to user-mem*/ 143238405Sjkim qsort( rgSetBlob, sk_OPENSSL_BLOCK_num(a), sizeof(MYBLOB), SetBlobCmp); 144160814Ssimon if (!(pTempMem = OPENSSL_malloc(totSize))) 145160814Ssimon { 146160814Ssimon ASN1err(ASN1_F_I2D_ASN1_SET,ERR_R_MALLOC_FAILURE); 147160814Ssimon return(0); 148160814Ssimon } 14955714Skris 15055714Skris/* Copy to temp mem */ 15155714Skris p = pTempMem; 152238405Sjkim for(i=0; i<sk_OPENSSL_BLOCK_num(a); ++i) 15355714Skris { 15455714Skris memcpy(p, rgSetBlob[i].pbData, rgSetBlob[i].cbData); 15555714Skris p += rgSetBlob[i].cbData; 15655714Skris } 15755714Skris 15855714Skris/* Copy back to user mem*/ 15955714Skris memcpy(pStart, pTempMem, totSize); 16068651Skris OPENSSL_free(pTempMem); 16168651Skris OPENSSL_free(rgSetBlob); 16255714Skris 16355714Skris return(r); 16455714Skris } 16555714Skris 166238405SjkimSTACK_OF(OPENSSL_BLOCK) *d2i_ASN1_SET(STACK_OF(OPENSSL_BLOCK) **a, 167238405Sjkim const unsigned char **pp, 168238405Sjkim long length, d2i_of_void *d2i, 169238405Sjkim void (*free_func)(OPENSSL_BLOCK), int ex_tag, 170238405Sjkim int ex_class) 17155714Skris { 172160814Ssimon ASN1_const_CTX c; 173238405Sjkim STACK_OF(OPENSSL_BLOCK) *ret=NULL; 17455714Skris 17555714Skris if ((a == NULL) || ((*a) == NULL)) 176160814Ssimon { 177238405Sjkim if ((ret=sk_OPENSSL_BLOCK_new_null()) == NULL) 178160814Ssimon { 179160814Ssimon ASN1err(ASN1_F_D2I_ASN1_SET,ERR_R_MALLOC_FAILURE); 180160814Ssimon goto err; 181160814Ssimon } 182160814Ssimon } 18355714Skris else 18455714Skris ret=(*a); 18555714Skris 18655714Skris c.p= *pp; 18755714Skris c.max=(length == 0)?0:(c.p+length); 18855714Skris 18955714Skris c.inf=ASN1_get_object(&c.p,&c.slen,&c.tag,&c.xclass,c.max-c.p); 19055714Skris if (c.inf & 0x80) goto err; 19155714Skris if (ex_class != c.xclass) 19255714Skris { 19355714Skris ASN1err(ASN1_F_D2I_ASN1_SET,ASN1_R_BAD_CLASS); 19455714Skris goto err; 19555714Skris } 19655714Skris if (ex_tag != c.tag) 19755714Skris { 19855714Skris ASN1err(ASN1_F_D2I_ASN1_SET,ASN1_R_BAD_TAG); 19955714Skris goto err; 20055714Skris } 20155714Skris if ((c.slen+c.p) > c.max) 20255714Skris { 20355714Skris ASN1err(ASN1_F_D2I_ASN1_SET,ASN1_R_LENGTH_ERROR); 20455714Skris goto err; 20555714Skris } 20655714Skris /* check for infinite constructed - it can be as long 20755714Skris * as the amount of data passed to us */ 20855714Skris if (c.inf == (V_ASN1_CONSTRUCTED+1)) 20955714Skris c.slen=length+ *pp-c.p; 21055714Skris c.max=c.p+c.slen; 21155714Skris 21255714Skris while (c.p < c.max) 21355714Skris { 21455714Skris char *s; 21555714Skris 21655714Skris if (M_ASN1_D2I_end_sequence()) break; 217160814Ssimon /* XXX: This was called with 4 arguments, incorrectly, it seems 218160814Ssimon if ((s=func(NULL,&c.p,c.slen,c.max-c.p)) == NULL) */ 219160814Ssimon if ((s=d2i(NULL,&c.p,c.slen)) == NULL) 22055714Skris { 22155714Skris ASN1err(ASN1_F_D2I_ASN1_SET,ASN1_R_ERROR_PARSING_SET_ELEMENT); 222238405Sjkim asn1_add_error(*pp,(int)(c.p- *pp)); 22355714Skris goto err; 22455714Skris } 225238405Sjkim if (!sk_OPENSSL_BLOCK_push(ret,s)) goto err; 22655714Skris } 22755714Skris if (a != NULL) (*a)=ret; 22855714Skris *pp=c.p; 22955714Skris return(ret); 23055714Skriserr: 23155714Skris if ((ret != NULL) && ((a == NULL) || (*a != ret))) 23255714Skris { 23355714Skris if (free_func != NULL) 234238405Sjkim sk_OPENSSL_BLOCK_pop_free(ret,free_func); 23555714Skris else 236238405Sjkim sk_OPENSSL_BLOCK_free(ret); 23755714Skris } 23855714Skris return(NULL); 23955714Skris } 24055714Skris 241109998Smarkm#endif 242