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-rw-r--r--thirdparty/mbedtls/library/x509write_crt.c238
1 files changed, 145 insertions, 93 deletions
diff --git a/thirdparty/mbedtls/library/x509write_crt.c b/thirdparty/mbedtls/library/x509write_crt.c
index 0fc94fed2e..5462e83fe0 100644
--- a/thirdparty/mbedtls/library/x509write_crt.c
+++ b/thirdparty/mbedtls/library/x509write_crt.c
@@ -1,7 +1,7 @@
/*
* X.509 certificate writing
*
- * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
+ * Copyright The Mbed TLS Contributors
* SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
*
* This file is provided under the Apache License 2.0, or the
@@ -42,8 +42,6 @@
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* **********
- *
- * This file is part of mbed TLS (https://tls.mbed.org)
*/
/*
* References:
@@ -101,39 +99,44 @@ void mbedtls_x509write_crt_free( mbedtls_x509write_cert *ctx )
mbedtls_platform_zeroize( ctx, sizeof( mbedtls_x509write_cert ) );
}
-void mbedtls_x509write_crt_set_version( mbedtls_x509write_cert *ctx, int version )
+void mbedtls_x509write_crt_set_version( mbedtls_x509write_cert *ctx,
+ int version )
{
ctx->version = version;
}
-void mbedtls_x509write_crt_set_md_alg( mbedtls_x509write_cert *ctx, mbedtls_md_type_t md_alg )
+void mbedtls_x509write_crt_set_md_alg( mbedtls_x509write_cert *ctx,
+ mbedtls_md_type_t md_alg )
{
ctx->md_alg = md_alg;
}
-void mbedtls_x509write_crt_set_subject_key( mbedtls_x509write_cert *ctx, mbedtls_pk_context *key )
+void mbedtls_x509write_crt_set_subject_key( mbedtls_x509write_cert *ctx,
+ mbedtls_pk_context *key )
{
ctx->subject_key = key;
}
-void mbedtls_x509write_crt_set_issuer_key( mbedtls_x509write_cert *ctx, mbedtls_pk_context *key )
+void mbedtls_x509write_crt_set_issuer_key( mbedtls_x509write_cert *ctx,
+ mbedtls_pk_context *key )
{
ctx->issuer_key = key;
}
int mbedtls_x509write_crt_set_subject_name( mbedtls_x509write_cert *ctx,
- const char *subject_name )
+ const char *subject_name )
{
return mbedtls_x509_string_to_names( &ctx->subject, subject_name );
}
int mbedtls_x509write_crt_set_issuer_name( mbedtls_x509write_cert *ctx,
- const char *issuer_name )
+ const char *issuer_name )
{
return mbedtls_x509_string_to_names( &ctx->issuer, issuer_name );
}
-int mbedtls_x509write_crt_set_serial( mbedtls_x509write_cert *ctx, const mbedtls_mpi *serial )
+int mbedtls_x509write_crt_set_serial( mbedtls_x509write_cert *ctx,
+ const mbedtls_mpi *serial )
{
int ret;
@@ -143,8 +146,9 @@ int mbedtls_x509write_crt_set_serial( mbedtls_x509write_cert *ctx, const mbedtls
return( 0 );
}
-int mbedtls_x509write_crt_set_validity( mbedtls_x509write_cert *ctx, const char *not_before,
- const char *not_after )
+int mbedtls_x509write_crt_set_validity( mbedtls_x509write_cert *ctx,
+ const char *not_before,
+ const char *not_after )
{
if( strlen( not_before ) != MBEDTLS_X509_RFC5280_UTC_TIME_LEN - 1 ||
strlen( not_after ) != MBEDTLS_X509_RFC5280_UTC_TIME_LEN - 1 )
@@ -164,12 +168,12 @@ int mbedtls_x509write_crt_set_extension( mbedtls_x509write_cert *ctx,
int critical,
const unsigned char *val, size_t val_len )
{
- return mbedtls_x509_set_extension( &ctx->extensions, oid, oid_len,
- critical, val, val_len );
+ return( mbedtls_x509_set_extension( &ctx->extensions, oid, oid_len,
+ critical, val, val_len ) );
}
int mbedtls_x509write_crt_set_basic_constraints( mbedtls_x509write_cert *ctx,
- int is_ca, int max_pathlen )
+ int is_ca, int max_pathlen )
{
int ret;
unsigned char buf[9];
@@ -185,18 +189,21 @@ int mbedtls_x509write_crt_set_basic_constraints( mbedtls_x509write_cert *ctx,
{
if( max_pathlen >= 0 )
{
- MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_int( &c, buf, max_pathlen ) );
+ MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_int( &c, buf,
+ max_pathlen ) );
}
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_bool( &c, buf, 1 ) );
}
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, buf, len ) );
- MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, buf, MBEDTLS_ASN1_CONSTRUCTED |
+ MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, buf,
+ MBEDTLS_ASN1_CONSTRUCTED |
MBEDTLS_ASN1_SEQUENCE ) );
- return mbedtls_x509write_crt_set_extension( ctx, MBEDTLS_OID_BASIC_CONSTRAINTS,
- MBEDTLS_OID_SIZE( MBEDTLS_OID_BASIC_CONSTRAINTS ),
- 0, buf + sizeof(buf) - len, len );
+ return(
+ mbedtls_x509write_crt_set_extension( ctx, MBEDTLS_OID_BASIC_CONSTRAINTS,
+ MBEDTLS_OID_SIZE( MBEDTLS_OID_BASIC_CONSTRAINTS ),
+ 0, buf + sizeof(buf) - len, len ) );
}
#if defined(MBEDTLS_SHA1_C)
@@ -208,7 +215,8 @@ int mbedtls_x509write_crt_set_subject_key_identifier( mbedtls_x509write_cert *ct
size_t len = 0;
memset( buf, 0, sizeof(buf) );
- MBEDTLS_ASN1_CHK_ADD( len, mbedtls_pk_write_pubkey( &c, buf, ctx->subject_key ) );
+ MBEDTLS_ASN1_CHK_ADD( len,
+ mbedtls_pk_write_pubkey( &c, buf, ctx->subject_key ) );
ret = mbedtls_sha1_ret( buf + sizeof( buf ) - len, len,
buf + sizeof( buf ) - 20 );
@@ -218,11 +226,13 @@ int mbedtls_x509write_crt_set_subject_key_identifier( mbedtls_x509write_cert *ct
len = 20;
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, buf, len ) );
- MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, buf, MBEDTLS_ASN1_OCTET_STRING ) );
+ MBEDTLS_ASN1_CHK_ADD( len,
+ mbedtls_asn1_write_tag( &c, buf, MBEDTLS_ASN1_OCTET_STRING ) );
- return mbedtls_x509write_crt_set_extension( ctx, MBEDTLS_OID_SUBJECT_KEY_IDENTIFIER,
- MBEDTLS_OID_SIZE( MBEDTLS_OID_SUBJECT_KEY_IDENTIFIER ),
- 0, buf + sizeof(buf) - len, len );
+ return mbedtls_x509write_crt_set_extension( ctx,
+ MBEDTLS_OID_SUBJECT_KEY_IDENTIFIER,
+ MBEDTLS_OID_SIZE( MBEDTLS_OID_SUBJECT_KEY_IDENTIFIER ),
+ 0, buf + sizeof(buf) - len, len );
}
int mbedtls_x509write_crt_set_authority_key_identifier( mbedtls_x509write_cert *ctx )
@@ -233,7 +243,8 @@ int mbedtls_x509write_crt_set_authority_key_identifier( mbedtls_x509write_cert *
size_t len = 0;
memset( buf, 0, sizeof(buf) );
- MBEDTLS_ASN1_CHK_ADD( len, mbedtls_pk_write_pubkey( &c, buf, ctx->issuer_key ) );
+ MBEDTLS_ASN1_CHK_ADD( len,
+ mbedtls_pk_write_pubkey( &c, buf, ctx->issuer_key ) );
ret = mbedtls_sha1_ret( buf + sizeof( buf ) - len, len,
buf + sizeof( buf ) - 20 );
@@ -243,15 +254,19 @@ int mbedtls_x509write_crt_set_authority_key_identifier( mbedtls_x509write_cert *
len = 20;
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, buf, len ) );
- MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, buf, MBEDTLS_ASN1_CONTEXT_SPECIFIC | 0 ) );
+ MBEDTLS_ASN1_CHK_ADD( len,
+ mbedtls_asn1_write_tag( &c, buf, MBEDTLS_ASN1_CONTEXT_SPECIFIC | 0 ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, buf, len ) );
- MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, buf, MBEDTLS_ASN1_CONSTRUCTED |
- MBEDTLS_ASN1_SEQUENCE ) );
-
- return mbedtls_x509write_crt_set_extension( ctx, MBEDTLS_OID_AUTHORITY_KEY_IDENTIFIER,
- MBEDTLS_OID_SIZE( MBEDTLS_OID_AUTHORITY_KEY_IDENTIFIER ),
- 0, buf + sizeof( buf ) - len, len );
+ MBEDTLS_ASN1_CHK_ADD( len,
+ mbedtls_asn1_write_tag( &c, buf,
+ MBEDTLS_ASN1_CONSTRUCTED |
+ MBEDTLS_ASN1_SEQUENCE ) );
+
+ return mbedtls_x509write_crt_set_extension(
+ ctx, MBEDTLS_OID_AUTHORITY_KEY_IDENTIFIER,
+ MBEDTLS_OID_SIZE( MBEDTLS_OID_AUTHORITY_KEY_IDENTIFIER ),
+ 0, buf + sizeof( buf ) - len, len );
}
#endif /* MBEDTLS_SHA1_C */
@@ -298,8 +313,8 @@ int mbedtls_x509write_crt_set_key_usage( mbedtls_x509write_cert *ctx,
return( MBEDTLS_ERR_X509_INVALID_FORMAT );
ret = mbedtls_x509write_crt_set_extension( ctx, MBEDTLS_OID_KEY_USAGE,
- MBEDTLS_OID_SIZE( MBEDTLS_OID_KEY_USAGE ),
- 1, c, (size_t)ret );
+ MBEDTLS_OID_SIZE( MBEDTLS_OID_KEY_USAGE ),
+ 1, c, (size_t)ret );
if( ret != 0 )
return( ret );
@@ -325,8 +340,8 @@ int mbedtls_x509write_crt_set_ns_cert_type( mbedtls_x509write_cert *ctx,
return( ret );
ret = mbedtls_x509write_crt_set_extension( ctx, MBEDTLS_OID_NS_CERT_TYPE,
- MBEDTLS_OID_SIZE( MBEDTLS_OID_NS_CERT_TYPE ),
- 0, c, (size_t)ret );
+ MBEDTLS_OID_SIZE( MBEDTLS_OID_NS_CERT_TYPE ),
+ 0, c, (size_t)ret );
if( ret != 0 )
return( ret );
@@ -348,7 +363,8 @@ static int x509_write_time( unsigned char **p, unsigned char *start,
(const unsigned char *) t + 2,
size - 2 ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, len ) );
- MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_UTC_TIME ) );
+ MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start,
+ MBEDTLS_ASN1_UTC_TIME ) );
}
else
{
@@ -356,15 +372,17 @@ static int x509_write_time( unsigned char **p, unsigned char *start,
(const unsigned char *) t,
size ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, len ) );
- MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_GENERALIZED_TIME ) );
+ MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start,
+ MBEDTLS_ASN1_GENERALIZED_TIME ) );
}
return( (int) len );
}
-int mbedtls_x509write_crt_der( mbedtls_x509write_cert *ctx, unsigned char *buf, size_t size,
- int (*f_rng)(void *, unsigned char *, size_t),
- void *p_rng )
+int mbedtls_x509write_crt_der( mbedtls_x509write_cert *ctx,
+ unsigned char *buf, size_t size,
+ int (*f_rng)(void *, unsigned char *, size_t),
+ void *p_rng )
{
int ret;
const char *sig_oid;
@@ -372,15 +390,14 @@ int mbedtls_x509write_crt_der( mbedtls_x509write_cert *ctx, unsigned char *buf,
unsigned char *c, *c2;
unsigned char hash[64];
unsigned char sig[SIGNATURE_MAX_SIZE];
- unsigned char tmp_buf[2048];
size_t sub_len = 0, pub_len = 0, sig_and_oid_len = 0, sig_len;
size_t len = 0;
mbedtls_pk_type_t pk_alg;
/*
- * Prepare data to be signed in tmp_buf
+ * Prepare data to be signed at the end of the target buffer
*/
- c = tmp_buf + sizeof( tmp_buf );
+ c = buf + size;
/* Signature algorithm needed in TBS, and later for actual signature */
@@ -406,27 +423,36 @@ int mbedtls_x509write_crt_der( mbedtls_x509write_cert *ctx, unsigned char *buf,
/* Only for v3 */
if( ctx->version == MBEDTLS_X509_CRT_VERSION_3 )
{
- MBEDTLS_ASN1_CHK_ADD( len, mbedtls_x509_write_extensions( &c, tmp_buf, ctx->extensions ) );
- MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, tmp_buf, len ) );
- MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, tmp_buf, MBEDTLS_ASN1_CONSTRUCTED |
- MBEDTLS_ASN1_SEQUENCE ) );
- MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, tmp_buf, len ) );
- MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, tmp_buf, MBEDTLS_ASN1_CONTEXT_SPECIFIC |
- MBEDTLS_ASN1_CONSTRUCTED | 3 ) );
+ MBEDTLS_ASN1_CHK_ADD( len,
+ mbedtls_x509_write_extensions( &c,
+ buf, ctx->extensions ) );
+ MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, buf, len ) );
+ MBEDTLS_ASN1_CHK_ADD( len,
+ mbedtls_asn1_write_tag( &c, buf,
+ MBEDTLS_ASN1_CONSTRUCTED |
+ MBEDTLS_ASN1_SEQUENCE ) );
+ MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, buf, len ) );
+ MBEDTLS_ASN1_CHK_ADD( len,
+ mbedtls_asn1_write_tag( &c, buf,
+ MBEDTLS_ASN1_CONTEXT_SPECIFIC |
+ MBEDTLS_ASN1_CONSTRUCTED | 3 ) );
}
/*
* SubjectPublicKeyInfo
*/
- MBEDTLS_ASN1_CHK_ADD( pub_len, mbedtls_pk_write_pubkey_der( ctx->subject_key,
- tmp_buf, c - tmp_buf ) );
+ MBEDTLS_ASN1_CHK_ADD( pub_len,
+ mbedtls_pk_write_pubkey_der( ctx->subject_key,
+ buf, c - buf ) );
c -= pub_len;
len += pub_len;
/*
* Subject ::= Name
*/
- MBEDTLS_ASN1_CHK_ADD( len, mbedtls_x509_write_names( &c, tmp_buf, ctx->subject ) );
+ MBEDTLS_ASN1_CHK_ADD( len,
+ mbedtls_x509_write_names( &c, buf,
+ ctx->subject ) );
/*
* Validity ::= SEQUENCE {
@@ -435,32 +461,39 @@ int mbedtls_x509write_crt_der( mbedtls_x509write_cert *ctx, unsigned char *buf,
*/
sub_len = 0;
- MBEDTLS_ASN1_CHK_ADD( sub_len, x509_write_time( &c, tmp_buf, ctx->not_after,
- MBEDTLS_X509_RFC5280_UTC_TIME_LEN ) );
+ MBEDTLS_ASN1_CHK_ADD( sub_len,
+ x509_write_time( &c, buf, ctx->not_after,
+ MBEDTLS_X509_RFC5280_UTC_TIME_LEN ) );
- MBEDTLS_ASN1_CHK_ADD( sub_len, x509_write_time( &c, tmp_buf, ctx->not_before,
- MBEDTLS_X509_RFC5280_UTC_TIME_LEN ) );
+ MBEDTLS_ASN1_CHK_ADD( sub_len,
+ x509_write_time( &c, buf, ctx->not_before,
+ MBEDTLS_X509_RFC5280_UTC_TIME_LEN ) );
len += sub_len;
- MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, tmp_buf, sub_len ) );
- MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, tmp_buf, MBEDTLS_ASN1_CONSTRUCTED |
- MBEDTLS_ASN1_SEQUENCE ) );
+ MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, buf, sub_len ) );
+ MBEDTLS_ASN1_CHK_ADD( len,
+ mbedtls_asn1_write_tag( &c, buf,
+ MBEDTLS_ASN1_CONSTRUCTED |
+ MBEDTLS_ASN1_SEQUENCE ) );
/*
* Issuer ::= Name
*/
- MBEDTLS_ASN1_CHK_ADD( len, mbedtls_x509_write_names( &c, tmp_buf, ctx->issuer ) );
+ MBEDTLS_ASN1_CHK_ADD( len, mbedtls_x509_write_names( &c, buf,
+ ctx->issuer ) );
/*
* Signature ::= AlgorithmIdentifier
*/
- MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_algorithm_identifier( &c, tmp_buf,
- sig_oid, strlen( sig_oid ), 0 ) );
+ MBEDTLS_ASN1_CHK_ADD( len,
+ mbedtls_asn1_write_algorithm_identifier( &c, buf,
+ sig_oid, strlen( sig_oid ), 0 ) );
/*
* Serial ::= INTEGER
*/
- MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_mpi( &c, tmp_buf, &ctx->serial ) );
+ MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_mpi( &c, buf,
+ &ctx->serial ) );
/*
* Version ::= INTEGER { v1(0), v2(1), v3(2) }
@@ -470,48 +503,67 @@ int mbedtls_x509write_crt_der( mbedtls_x509write_cert *ctx, unsigned char *buf,
if( ctx->version != MBEDTLS_X509_CRT_VERSION_1 )
{
sub_len = 0;
- MBEDTLS_ASN1_CHK_ADD( sub_len, mbedtls_asn1_write_int( &c, tmp_buf, ctx->version ) );
+ MBEDTLS_ASN1_CHK_ADD( sub_len,
+ mbedtls_asn1_write_int( &c, buf, ctx->version ) );
len += sub_len;
- MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, tmp_buf, sub_len ) );
- MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, tmp_buf, MBEDTLS_ASN1_CONTEXT_SPECIFIC |
- MBEDTLS_ASN1_CONSTRUCTED | 0 ) );
+ MBEDTLS_ASN1_CHK_ADD( len,
+ mbedtls_asn1_write_len( &c, buf, sub_len ) );
+ MBEDTLS_ASN1_CHK_ADD( len,
+ mbedtls_asn1_write_tag( &c, buf,
+ MBEDTLS_ASN1_CONTEXT_SPECIFIC |
+ MBEDTLS_ASN1_CONSTRUCTED | 0 ) );
}
- MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, tmp_buf, len ) );
- MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, tmp_buf, MBEDTLS_ASN1_CONSTRUCTED |
- MBEDTLS_ASN1_SEQUENCE ) );
+ MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, buf, len ) );
+ MBEDTLS_ASN1_CHK_ADD( len,
+ mbedtls_asn1_write_tag( &c, buf, MBEDTLS_ASN1_CONSTRUCTED |
+ MBEDTLS_ASN1_SEQUENCE ) );
/*
* Make signature
*/
+
+ /* Compute hash of CRT. */
if( ( ret = mbedtls_md( mbedtls_md_info_from_type( ctx->md_alg ), c,
len, hash ) ) != 0 )
{
return( ret );
}
- if( ( ret = mbedtls_pk_sign( ctx->issuer_key, ctx->md_alg, hash, 0, sig, &sig_len,
- f_rng, p_rng ) ) != 0 )
+ if( ( ret = mbedtls_pk_sign( ctx->issuer_key, ctx->md_alg,
+ hash, 0, sig, &sig_len,
+ f_rng, p_rng ) ) != 0 )
{
return( ret );
}
- /*
- * Write data to output buffer
- */
+ /* Move CRT to the front of the buffer to have space
+ * for the signature. */
+ memmove( buf, c, len );
+ c = buf + len;
+
+ /* Add signature at the end of the buffer,
+ * making sure that it doesn't underflow
+ * into the CRT buffer. */
c2 = buf + size;
- MBEDTLS_ASN1_CHK_ADD( sig_and_oid_len, mbedtls_x509_write_sig( &c2, buf,
+ MBEDTLS_ASN1_CHK_ADD( sig_and_oid_len, mbedtls_x509_write_sig( &c2, c,
sig_oid, sig_oid_len, sig, sig_len ) );
- if( len > (size_t)( c2 - buf ) )
- return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL );
+ /*
+ * Memory layout after this step:
+ *
+ * buf c=buf+len c2 buf+size
+ * [CRT0,...,CRTn, UNUSED, ..., UNUSED, SIG0, ..., SIGm]
+ */
- c2 -= len;
- memcpy( c2, c, len );
+ /* Move raw CRT to just before the signature. */
+ c = c2 - len;
+ memmove( c, buf, len );
len += sig_and_oid_len;
- MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c2, buf, len ) );
- MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c2, buf, MBEDTLS_ASN1_CONSTRUCTED |
+ MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, buf, len ) );
+ MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, buf,
+ MBEDTLS_ASN1_CONSTRUCTED |
MBEDTLS_ASN1_SEQUENCE ) );
return( (int) len );
@@ -521,23 +573,23 @@ int mbedtls_x509write_crt_der( mbedtls_x509write_cert *ctx, unsigned char *buf,
#define PEM_END_CRT "-----END CERTIFICATE-----\n"
#if defined(MBEDTLS_PEM_WRITE_C)
-int mbedtls_x509write_crt_pem( mbedtls_x509write_cert *crt, unsigned char *buf, size_t size,
- int (*f_rng)(void *, unsigned char *, size_t),
- void *p_rng )
+int mbedtls_x509write_crt_pem( mbedtls_x509write_cert *crt,
+ unsigned char *buf, size_t size,
+ int (*f_rng)(void *, unsigned char *, size_t),
+ void *p_rng )
{
int ret;
- unsigned char output_buf[4096];
- size_t olen = 0;
+ size_t olen;
- if( ( ret = mbedtls_x509write_crt_der( crt, output_buf, sizeof(output_buf),
+ if( ( ret = mbedtls_x509write_crt_der( crt, buf, size,
f_rng, p_rng ) ) < 0 )
{
return( ret );
}
if( ( ret = mbedtls_pem_write_buffer( PEM_BEGIN_CRT, PEM_END_CRT,
- output_buf + sizeof(output_buf) - ret,
- ret, buf, size, &olen ) ) != 0 )
+ buf + size - ret, ret,
+ buf, size, &olen ) ) != 0 )
{
return( ret );
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-11 12:20:50 +0000