From aa4d426b4d3527d7e166df1a05058c9a4a0f6683 Mon Sep 17 00:00:00 2001 From: Wojtek Kosior Date: Fri, 30 Apr 2021 00:33:56 +0200 Subject: initial/final commit --- openssl-1.1.0h/crypto/asn1/tasn_new.c | 348 ++++++++++++++++++++++++++++++++++ 1 file changed, 348 insertions(+) create mode 100644 openssl-1.1.0h/crypto/asn1/tasn_new.c (limited to 'openssl-1.1.0h/crypto/asn1/tasn_new.c') diff --git a/openssl-1.1.0h/crypto/asn1/tasn_new.c b/openssl-1.1.0h/crypto/asn1/tasn_new.c new file mode 100644 index 0000000..11c8040 --- /dev/null +++ b/openssl-1.1.0h/crypto/asn1/tasn_new.c @@ -0,0 +1,348 @@ +/* + * Copyright 2000-2016 The OpenSSL Project Authors. All Rights Reserved. + * + * Licensed under the OpenSSL license (the "License"). You may not use + * this file except in compliance with the License. You can obtain a copy + * in the file LICENSE in the source distribution or at + * https://www.openssl.org/source/license.html + */ + +#include +#include +#include +#include +#include +#include +#include "asn1_locl.h" + +static int asn1_item_embed_new(ASN1_VALUE **pval, const ASN1_ITEM *it, + int embed); +static int asn1_primitive_new(ASN1_VALUE **pval, const ASN1_ITEM *it, + int embed); +static void asn1_item_clear(ASN1_VALUE **pval, const ASN1_ITEM *it); +static int asn1_template_new(ASN1_VALUE **pval, const ASN1_TEMPLATE *tt); +static void asn1_template_clear(ASN1_VALUE **pval, const ASN1_TEMPLATE *tt); +static void asn1_primitive_clear(ASN1_VALUE **pval, const ASN1_ITEM *it); + +ASN1_VALUE *ASN1_item_new(const ASN1_ITEM *it) +{ + ASN1_VALUE *ret = NULL; + if (ASN1_item_ex_new(&ret, it) > 0) + return ret; + return NULL; +} + +/* Allocate an ASN1 structure */ + +int ASN1_item_ex_new(ASN1_VALUE **pval, const ASN1_ITEM *it) +{ + return asn1_item_embed_new(pval, it, 0); +} + +int asn1_item_embed_new(ASN1_VALUE **pval, const ASN1_ITEM *it, int embed) +{ + const ASN1_TEMPLATE *tt = NULL; + const ASN1_EXTERN_FUNCS *ef; + const ASN1_AUX *aux = it->funcs; + ASN1_aux_cb *asn1_cb; + ASN1_VALUE **pseqval; + int i; + if (aux && aux->asn1_cb) + asn1_cb = aux->asn1_cb; + else + asn1_cb = 0; + +#ifndef OPENSSL_NO_CRYPTO_MDEBUG + OPENSSL_mem_debug_push(it->sname ? it->sname : "asn1_item_embed_new"); +#endif + + switch (it->itype) { + + case ASN1_ITYPE_EXTERN: + ef = it->funcs; + if (ef && ef->asn1_ex_new) { + if (!ef->asn1_ex_new(pval, it)) + goto memerr; + } + break; + + case ASN1_ITYPE_PRIMITIVE: + if (it->templates) { + if (!asn1_template_new(pval, it->templates)) + goto memerr; + } else if (!asn1_primitive_new(pval, it, embed)) + goto memerr; + break; + + case ASN1_ITYPE_MSTRING: + if (!asn1_primitive_new(pval, it, embed)) + goto memerr; + break; + + case ASN1_ITYPE_CHOICE: + if (asn1_cb) { + i = asn1_cb(ASN1_OP_NEW_PRE, pval, it, NULL); + if (!i) + goto auxerr; + if (i == 2) { +#ifndef OPENSSL_NO_CRYPTO_MDEBUG + OPENSSL_mem_debug_pop(); +#endif + return 1; + } + } + if (embed) { + memset(*pval, 0, it->size); + } else { + *pval = OPENSSL_zalloc(it->size); + if (*pval == NULL) + goto memerr; + } + asn1_set_choice_selector(pval, -1, it); + if (asn1_cb && !asn1_cb(ASN1_OP_NEW_POST, pval, it, NULL)) + goto auxerr2; + break; + + case ASN1_ITYPE_NDEF_SEQUENCE: + case ASN1_ITYPE_SEQUENCE: + if (asn1_cb) { + i = asn1_cb(ASN1_OP_NEW_PRE, pval, it, NULL); + if (!i) + goto auxerr; + if (i == 2) { +#ifndef OPENSSL_NO_CRYPTO_MDEBUG + OPENSSL_mem_debug_pop(); +#endif + return 1; + } + } + if (embed) { + memset(*pval, 0, it->size); + } else { + *pval = OPENSSL_zalloc(it->size); + if (*pval == NULL) + goto memerr; + } + /* 0 : init. lock */ + if (asn1_do_lock(pval, 0, it) < 0) { + if (!embed) { + OPENSSL_free(*pval); + *pval = NULL; + } + goto memerr; + } + asn1_enc_init(pval, it); + for (i = 0, tt = it->templates; i < it->tcount; tt++, i++) { + pseqval = asn1_get_field_ptr(pval, tt); + if (!asn1_template_new(pseqval, tt)) + goto memerr2; + } + if (asn1_cb && !asn1_cb(ASN1_OP_NEW_POST, pval, it, NULL)) + goto auxerr2; + break; + } +#ifndef OPENSSL_NO_CRYPTO_MDEBUG + OPENSSL_mem_debug_pop(); +#endif + return 1; + + memerr2: + asn1_item_embed_free(pval, it, embed); + memerr: + ASN1err(ASN1_F_ASN1_ITEM_EMBED_NEW, ERR_R_MALLOC_FAILURE); +#ifndef OPENSSL_NO_CRYPTO_MDEBUG + OPENSSL_mem_debug_pop(); +#endif + return 0; + + auxerr2: + asn1_item_embed_free(pval, it, embed); + auxerr: + ASN1err(ASN1_F_ASN1_ITEM_EMBED_NEW, ASN1_R_AUX_ERROR); +#ifndef OPENSSL_NO_CRYPTO_MDEBUG + OPENSSL_mem_debug_pop(); +#endif + return 0; + +} + +static void asn1_item_clear(ASN1_VALUE **pval, const ASN1_ITEM *it) +{ + const ASN1_EXTERN_FUNCS *ef; + + switch (it->itype) { + + case ASN1_ITYPE_EXTERN: + ef = it->funcs; + if (ef && ef->asn1_ex_clear) + ef->asn1_ex_clear(pval, it); + else + *pval = NULL; + break; + + case ASN1_ITYPE_PRIMITIVE: + if (it->templates) + asn1_template_clear(pval, it->templates); + else + asn1_primitive_clear(pval, it); + break; + + case ASN1_ITYPE_MSTRING: + asn1_primitive_clear(pval, it); + break; + + case ASN1_ITYPE_CHOICE: + case ASN1_ITYPE_SEQUENCE: + case ASN1_ITYPE_NDEF_SEQUENCE: + *pval = NULL; + break; + } +} + +static int asn1_template_new(ASN1_VALUE **pval, const ASN1_TEMPLATE *tt) +{ + const ASN1_ITEM *it = ASN1_ITEM_ptr(tt->item); + int embed = tt->flags & ASN1_TFLG_EMBED; + ASN1_VALUE *tval; + int ret; + if (embed) { + tval = (ASN1_VALUE *)pval; + pval = &tval; + } + if (tt->flags & ASN1_TFLG_OPTIONAL) { + asn1_template_clear(pval, tt); + return 1; + } + /* If ANY DEFINED BY nothing to do */ + + if (tt->flags & ASN1_TFLG_ADB_MASK) { + *pval = NULL; + return 1; + } +#ifndef OPENSSL_NO_CRYPTO_MDEBUG + OPENSSL_mem_debug_push(tt->field_name + ? tt->field_name : "asn1_template_new"); +#endif + /* If SET OF or SEQUENCE OF, its a STACK */ + if (tt->flags & ASN1_TFLG_SK_MASK) { + STACK_OF(ASN1_VALUE) *skval; + skval = sk_ASN1_VALUE_new_null(); + if (!skval) { + ASN1err(ASN1_F_ASN1_TEMPLATE_NEW, ERR_R_MALLOC_FAILURE); + ret = 0; + goto done; + } + *pval = (ASN1_VALUE *)skval; + ret = 1; + goto done; + } + /* Otherwise pass it back to the item routine */ + ret = asn1_item_embed_new(pval, it, embed); + done: +#ifndef OPENSSL_NO_CRYPTO_MDEBUG + OPENSSL_mem_debug_pop(); +#endif + return ret; +} + +static void asn1_template_clear(ASN1_VALUE **pval, const ASN1_TEMPLATE *tt) +{ + /* If ADB or STACK just NULL the field */ + if (tt->flags & (ASN1_TFLG_ADB_MASK | ASN1_TFLG_SK_MASK)) + *pval = NULL; + else + asn1_item_clear(pval, ASN1_ITEM_ptr(tt->item)); +} + +/* + * NB: could probably combine most of the real XXX_new() behaviour and junk + * all the old functions. + */ + +static int asn1_primitive_new(ASN1_VALUE **pval, const ASN1_ITEM *it, + int embed) +{ + ASN1_TYPE *typ; + ASN1_STRING *str; + int utype; + + if (!it) + return 0; + + if (it->funcs) { + const ASN1_PRIMITIVE_FUNCS *pf = it->funcs; + if (embed) { + if (pf->prim_clear) { + pf->prim_clear(pval, it); + return 1; + } + } else if (pf->prim_new) { + return pf->prim_new(pval, it); + } + } + + if (it->itype == ASN1_ITYPE_MSTRING) + utype = -1; + else + utype = it->utype; + switch (utype) { + case V_ASN1_OBJECT: + *pval = (ASN1_VALUE *)OBJ_nid2obj(NID_undef); + return 1; + + case V_ASN1_BOOLEAN: + *(ASN1_BOOLEAN *)pval = it->size; + return 1; + + case V_ASN1_NULL: + *pval = (ASN1_VALUE *)1; + return 1; + + case V_ASN1_ANY: + typ = OPENSSL_malloc(sizeof(*typ)); + if (typ == NULL) + return 0; + typ->value.ptr = NULL; + typ->type = -1; + *pval = (ASN1_VALUE *)typ; + break; + + default: + if (embed) { + str = *(ASN1_STRING **)pval; + memset(str, 0, sizeof(*str)); + str->type = utype; + str->flags = ASN1_STRING_FLAG_EMBED; + } else { + str = ASN1_STRING_type_new(utype); + *pval = (ASN1_VALUE *)str; + } + if (it->itype == ASN1_ITYPE_MSTRING && str) + str->flags |= ASN1_STRING_FLAG_MSTRING; + break; + } + if (*pval) + return 1; + return 0; +} + +static void asn1_primitive_clear(ASN1_VALUE **pval, const ASN1_ITEM *it) +{ + int utype; + if (it && it->funcs) { + const ASN1_PRIMITIVE_FUNCS *pf = it->funcs; + if (pf->prim_clear) + pf->prim_clear(pval, it); + else + *pval = NULL; + return; + } + if (!it || (it->itype == ASN1_ITYPE_MSTRING)) + utype = -1; + else + utype = it->utype; + if (utype == V_ASN1_BOOLEAN) + *(ASN1_BOOLEAN *)pval = it->size; + else + *pval = NULL; +} -- cgit v1.2.3