diff options
Diffstat (limited to 'openssl/crypto/asn1/x_name.c')
| -rw-r--r-- | openssl/crypto/asn1/x_name.c | 275 |
1 files changed, 275 insertions, 0 deletions
diff --git a/openssl/crypto/asn1/x_name.c b/openssl/crypto/asn1/x_name.c new file mode 100644 index 000000000..04380abc3 --- /dev/null +++ b/openssl/crypto/asn1/x_name.c @@ -0,0 +1,275 @@ +/* crypto/asn1/x_name.c */ +/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) + * All rights reserved. + * + * This package is an SSL implementation written + * by Eric Young (eay@cryptsoft.com). + * The implementation was written so as to conform with Netscapes SSL. + * + * This library is free for commercial and non-commercial use as long as + * the following conditions are aheared to. The following conditions + * apply to all code found in this distribution, be it the RC4, RSA, + * lhash, DES, etc., code; not just the SSL code. The SSL documentation + * included with this distribution is covered by the same copyright terms + * except that the holder is Tim Hudson (tjh@cryptsoft.com). + * + * Copyright remains Eric Young's, and as such any Copyright notices in + * the code are not to be removed. + * If this package is used in a product, Eric Young should be given attribution + * as the author of the parts of the library used. + * This can be in the form of a textual message at program startup or + * in documentation (online or textual) provided with the package. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * "This product includes cryptographic software written by + * Eric Young (eay@cryptsoft.com)" + * The word 'cryptographic' can be left out if the rouines from the library + * being used are not cryptographic related :-). + * 4. If you include any Windows specific code (or a derivative thereof) from + * the apps directory (application code) you must include an acknowledgement: + * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" + * + * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * The licence and distribution terms for any publically available version or + * derivative of this code cannot be changed. i.e. this code cannot simply be + * copied and put under another distribution licence + * [including the GNU Public Licence.] + */ + +#include <stdio.h> +#include "cryptlib.h" +#include <openssl/asn1t.h> +#include <openssl/x509.h> + +static int x509_name_ex_d2i(ASN1_VALUE **val, const unsigned char **in, long len, const ASN1_ITEM *it, + int tag, int aclass, char opt, ASN1_TLC *ctx); + +static int x509_name_ex_i2d(ASN1_VALUE **val, unsigned char **out, const ASN1_ITEM *it, int tag, int aclass); +static int x509_name_ex_new(ASN1_VALUE **val, const ASN1_ITEM *it); +static void x509_name_ex_free(ASN1_VALUE **val, const ASN1_ITEM *it); + +static int x509_name_encode(X509_NAME *a); + +ASN1_SEQUENCE(X509_NAME_ENTRY) = { + ASN1_SIMPLE(X509_NAME_ENTRY, object, ASN1_OBJECT), + ASN1_SIMPLE(X509_NAME_ENTRY, value, ASN1_PRINTABLE) +} ASN1_SEQUENCE_END(X509_NAME_ENTRY) + +IMPLEMENT_ASN1_FUNCTIONS(X509_NAME_ENTRY) +IMPLEMENT_ASN1_DUP_FUNCTION(X509_NAME_ENTRY) + +/* For the "Name" type we need a SEQUENCE OF { SET OF X509_NAME_ENTRY } + * so declare two template wrappers for this + */ + +ASN1_ITEM_TEMPLATE(X509_NAME_ENTRIES) = + ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SET_OF, 0, RDNS, X509_NAME_ENTRY) +ASN1_ITEM_TEMPLATE_END(X509_NAME_ENTRIES) + +ASN1_ITEM_TEMPLATE(X509_NAME_INTERNAL) = + ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SEQUENCE_OF, 0, Name, X509_NAME_ENTRIES) +ASN1_ITEM_TEMPLATE_END(X509_NAME_INTERNAL) + +/* Normally that's where it would end: we'd have two nested STACK structures + * representing the ASN1. Unfortunately X509_NAME uses a completely different + * form and caches encodings so we have to process the internal form and convert + * to the external form. + */ + +const ASN1_EXTERN_FUNCS x509_name_ff = { + NULL, + x509_name_ex_new, + x509_name_ex_free, + 0, /* Default clear behaviour is OK */ + x509_name_ex_d2i, + x509_name_ex_i2d +}; + +IMPLEMENT_EXTERN_ASN1(X509_NAME, V_ASN1_SEQUENCE, x509_name_ff) + +IMPLEMENT_ASN1_FUNCTIONS(X509_NAME) +IMPLEMENT_ASN1_DUP_FUNCTION(X509_NAME) + +static int x509_name_ex_new(ASN1_VALUE **val, const ASN1_ITEM *it) +{ + X509_NAME *ret = NULL; + ret = OPENSSL_malloc(sizeof(X509_NAME)); + if(!ret) goto memerr; + if ((ret->entries=sk_X509_NAME_ENTRY_new_null()) == NULL) + goto memerr; + if((ret->bytes = BUF_MEM_new()) == NULL) goto memerr; + ret->modified=1; + *val = (ASN1_VALUE *)ret; + return 1; + + memerr: + ASN1err(ASN1_F_X509_NAME_EX_NEW, ERR_R_MALLOC_FAILURE); + if (ret) + { + if (ret->entries) + sk_X509_NAME_ENTRY_free(ret->entries); + OPENSSL_free(ret); + } + return 0; +} + +static void x509_name_ex_free(ASN1_VALUE **pval, const ASN1_ITEM *it) +{ + X509_NAME *a; + if(!pval || !*pval) + return; + a = (X509_NAME *)*pval; + + BUF_MEM_free(a->bytes); + sk_X509_NAME_ENTRY_pop_free(a->entries,X509_NAME_ENTRY_free); + OPENSSL_free(a); + *pval = NULL; +} + +/* Used with sk_pop_free() to free up the internal representation. + * NB: we only free the STACK and not its contents because it is + * already present in the X509_NAME structure. + */ + +static void sk_internal_free(void *a) +{ + sk_free(a); +} + +static int x509_name_ex_d2i(ASN1_VALUE **val, const unsigned char **in, long len, const ASN1_ITEM *it, + int tag, int aclass, char opt, ASN1_TLC *ctx) +{ + const unsigned char *p = *in, *q; + union { STACK *s; ASN1_VALUE *a; } intname = {NULL}; + union { X509_NAME *x; ASN1_VALUE *a; } nm = {NULL}; + int i, j, ret; + STACK_OF(X509_NAME_ENTRY) *entries; + X509_NAME_ENTRY *entry; + q = p; + + /* Get internal representation of Name */ + ret = ASN1_item_ex_d2i(&intname.a, + &p, len, ASN1_ITEM_rptr(X509_NAME_INTERNAL), + tag, aclass, opt, ctx); + + if(ret <= 0) return ret; + + if(*val) x509_name_ex_free(val, NULL); + if(!x509_name_ex_new(&nm.a, NULL)) goto err; + /* We've decoded it: now cache encoding */ + if(!BUF_MEM_grow(nm.x->bytes, p - q)) goto err; + memcpy(nm.x->bytes->data, q, p - q); + + /* Convert internal representation to X509_NAME structure */ + for(i = 0; i < sk_num(intname.s); i++) { + entries = (STACK_OF(X509_NAME_ENTRY) *)sk_value(intname.s, i); + for(j = 0; j < sk_X509_NAME_ENTRY_num(entries); j++) { + entry = sk_X509_NAME_ENTRY_value(entries, j); + entry->set = i; + if(!sk_X509_NAME_ENTRY_push(nm.x->entries, entry)) + goto err; + } + sk_X509_NAME_ENTRY_free(entries); + } + sk_free(intname.s); + nm.x->modified = 0; + *val = nm.a; + *in = p; + return ret; + err: + ASN1err(ASN1_F_X509_NAME_EX_D2I, ERR_R_NESTED_ASN1_ERROR); + return 0; +} + +static int x509_name_ex_i2d(ASN1_VALUE **val, unsigned char **out, const ASN1_ITEM *it, int tag, int aclass) +{ + int ret; + X509_NAME *a = (X509_NAME *)*val; + if(a->modified) { + ret = x509_name_encode((X509_NAME *)a); + if(ret < 0) return ret; + } + ret = a->bytes->length; + if(out != NULL) { + memcpy(*out,a->bytes->data,ret); + *out+=ret; + } + return ret; +} + +static int x509_name_encode(X509_NAME *a) +{ + union { STACK *s; ASN1_VALUE *a; } intname = {NULL}; + int len; + unsigned char *p; + STACK_OF(X509_NAME_ENTRY) *entries = NULL; + X509_NAME_ENTRY *entry; + int i, set = -1; + intname.s = sk_new_null(); + if(!intname.s) goto memerr; + for(i = 0; i < sk_X509_NAME_ENTRY_num(a->entries); i++) { + entry = sk_X509_NAME_ENTRY_value(a->entries, i); + if(entry->set != set) { + entries = sk_X509_NAME_ENTRY_new_null(); + if(!entries) goto memerr; + if(!sk_push(intname.s, (char *)entries)) goto memerr; + set = entry->set; + } + if(!sk_X509_NAME_ENTRY_push(entries, entry)) goto memerr; + } + len = ASN1_item_ex_i2d(&intname.a, NULL, + ASN1_ITEM_rptr(X509_NAME_INTERNAL), -1, -1); + if (!BUF_MEM_grow(a->bytes,len)) goto memerr; + p=(unsigned char *)a->bytes->data; + ASN1_item_ex_i2d(&intname.a, + &p, ASN1_ITEM_rptr(X509_NAME_INTERNAL), -1, -1); + sk_pop_free(intname.s, sk_internal_free); + a->modified = 0; + return len; + memerr: + sk_pop_free(intname.s, sk_internal_free); + ASN1err(ASN1_F_X509_NAME_ENCODE, ERR_R_MALLOC_FAILURE); + return -1; +} + + +int X509_NAME_set(X509_NAME **xn, X509_NAME *name) + { + X509_NAME *in; + + if (!xn || !name) return(0); + + if (*xn != name) + { + in=X509_NAME_dup(name); + if (in != NULL) + { + X509_NAME_free(*xn); + *xn=in; + } + } + return(*xn != NULL); + } + +IMPLEMENT_STACK_OF(X509_NAME_ENTRY) +IMPLEMENT_ASN1_SET_OF(X509_NAME_ENTRY) |