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32ee452496
After avoiding OPENSSL_memcmp for EC curve comparison, there are no remaining uses in the source code. The function is only defined in an internal header and thus should be safe to remove for 3.0.0. Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org> Reviewed-by: Dmitry Belyavskiy <beldmit@gmail.com> (Merged from https://github.com/openssl/openssl/pull/9207)
137 lines
4.3 KiB
C
137 lines
4.3 KiB
C
/*
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* Copyright 2015-2018 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the Apache License 2.0 (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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#include "e_os.h"
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#include "internal/cryptlib.h"
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#include <stdio.h>
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#include <openssl/asn1t.h>
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#include <openssl/conf.h>
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#include <openssl/x509v3.h>
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#include "ext_dat.h"
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static STACK_OF(CONF_VALUE) *i2v_TLS_FEATURE(const X509V3_EXT_METHOD *method,
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TLS_FEATURE *tls_feature,
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STACK_OF(CONF_VALUE) *ext_list);
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static TLS_FEATURE *v2i_TLS_FEATURE(const X509V3_EXT_METHOD *method,
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X509V3_CTX *ctx,
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STACK_OF(CONF_VALUE) *nval);
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ASN1_ITEM_TEMPLATE(TLS_FEATURE) =
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ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SEQUENCE_OF, 0, TLS_FEATURE, ASN1_INTEGER)
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static_ASN1_ITEM_TEMPLATE_END(TLS_FEATURE)
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IMPLEMENT_ASN1_ALLOC_FUNCTIONS(TLS_FEATURE)
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const X509V3_EXT_METHOD v3_tls_feature = {
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NID_tlsfeature, 0,
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ASN1_ITEM_ref(TLS_FEATURE),
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0, 0, 0, 0,
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0, 0,
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(X509V3_EXT_I2V)i2v_TLS_FEATURE,
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(X509V3_EXT_V2I)v2i_TLS_FEATURE,
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0, 0,
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NULL
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};
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typedef struct {
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long num;
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const char *name;
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} TLS_FEATURE_NAME;
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static TLS_FEATURE_NAME tls_feature_tbl[] = {
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{ 5, "status_request" },
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{ 17, "status_request_v2" }
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};
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/*
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* i2v_TLS_FEATURE converts the TLS_FEATURE structure tls_feature into the
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* STACK_OF(CONF_VALUE) structure ext_list. STACK_OF(CONF_VALUE) is the format
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* used by the CONF library to represent a multi-valued extension. ext_list is
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* returned.
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*/
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static STACK_OF(CONF_VALUE) *i2v_TLS_FEATURE(const X509V3_EXT_METHOD *method,
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TLS_FEATURE *tls_feature,
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STACK_OF(CONF_VALUE) *ext_list)
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{
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int i;
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size_t j;
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ASN1_INTEGER *ai;
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long tlsextid;
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for (i = 0; i < sk_ASN1_INTEGER_num(tls_feature); i++) {
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ai = sk_ASN1_INTEGER_value(tls_feature, i);
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tlsextid = ASN1_INTEGER_get(ai);
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for (j = 0; j < OSSL_NELEM(tls_feature_tbl); j++)
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if (tlsextid == tls_feature_tbl[j].num)
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break;
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if (j < OSSL_NELEM(tls_feature_tbl))
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X509V3_add_value(NULL, tls_feature_tbl[j].name, &ext_list);
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else
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X509V3_add_value_int(NULL, ai, &ext_list);
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}
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return ext_list;
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}
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/*
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* v2i_TLS_FEATURE converts the multi-valued extension nval into a TLS_FEATURE
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* structure, which is returned if the conversion is successful. In case of
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* error, NULL is returned.
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*/
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static TLS_FEATURE *v2i_TLS_FEATURE(const X509V3_EXT_METHOD *method,
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X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *nval)
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{
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TLS_FEATURE *tlsf;
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char *extval, *endptr;
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ASN1_INTEGER *ai;
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CONF_VALUE *val;
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int i;
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size_t j;
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long tlsextid;
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if ((tlsf = sk_ASN1_INTEGER_new_null()) == NULL) {
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X509V3err(X509V3_F_V2I_TLS_FEATURE, ERR_R_MALLOC_FAILURE);
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return NULL;
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}
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for (i = 0; i < sk_CONF_VALUE_num(nval); i++) {
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val = sk_CONF_VALUE_value(nval, i);
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if (val->value)
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extval = val->value;
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else
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extval = val->name;
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for (j = 0; j < OSSL_NELEM(tls_feature_tbl); j++)
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if (strcasecmp(extval, tls_feature_tbl[j].name) == 0)
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break;
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if (j < OSSL_NELEM(tls_feature_tbl))
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tlsextid = tls_feature_tbl[j].num;
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else {
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tlsextid = strtol(extval, &endptr, 10);
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if (((*endptr) != '\0') || (extval == endptr) || (tlsextid < 0) ||
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(tlsextid > 65535)) {
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X509V3err(X509V3_F_V2I_TLS_FEATURE, X509V3_R_INVALID_SYNTAX);
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X509V3_conf_err(val);
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goto err;
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}
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}
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if ((ai = ASN1_INTEGER_new()) == NULL
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|| !ASN1_INTEGER_set(ai, tlsextid)
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|| sk_ASN1_INTEGER_push(tlsf, ai) <= 0) {
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X509V3err(X509V3_F_V2I_TLS_FEATURE, ERR_R_MALLOC_FAILURE);
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goto err;
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}
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}
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return tlsf;
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err:
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sk_ASN1_INTEGER_pop_free(tlsf, ASN1_INTEGER_free);
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return NULL;
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}
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