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authorAdam Harrison <adamdharrison@gmail.com>2022-11-26 16:20:59 -0500
committerAdam Harrison <adamdharrison@gmail.com>2022-11-29 18:39:46 -0500
commitfc0c4ed9a3103e0e6534311923668879fc8e0875 (patch)
tree6e7723c3f45d39f06c243d9c18a3c038da948793 /lib/mbedtls-2.27.0/library/asn1parse.c
parent3836606e2b735ba7b2dc0f580231843660587fb4 (diff)
downloadlite-xl-plugin-manager-fc0c4ed9a3103e0e6534311923668879fc8e0875.tar.gz
lite-xl-plugin-manager-fc0c4ed9a3103e0e6534311923668879fc8e0875.zip
Removed openssl, and curl, and added mbedded tls.curl-removal
Almost fully removed curl, needs more testing. Fixed most issues, now trying to cross compile. Fix? Sigh.
Diffstat (limited to 'lib/mbedtls-2.27.0/library/asn1parse.c')
-rw-r--r--lib/mbedtls-2.27.0/library/asn1parse.c481
1 files changed, 481 insertions, 0 deletions
diff --git a/lib/mbedtls-2.27.0/library/asn1parse.c b/lib/mbedtls-2.27.0/library/asn1parse.c
new file mode 100644
index 0000000..22747d3
--- /dev/null
+++ b/lib/mbedtls-2.27.0/library/asn1parse.c
@@ -0,0 +1,481 @@
+/*
+ * Generic ASN.1 parsing
+ *
+ * Copyright The Mbed TLS Contributors
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "common.h"
+
+#if defined(MBEDTLS_ASN1_PARSE_C)
+
+#include "mbedtls/asn1.h"
+#include "mbedtls/platform_util.h"
+#include "mbedtls/error.h"
+
+#include <string.h>
+
+#if defined(MBEDTLS_BIGNUM_C)
+#include "mbedtls/bignum.h"
+#endif
+
+#if defined(MBEDTLS_PLATFORM_C)
+#include "mbedtls/platform.h"
+#else
+#include <stdlib.h>
+#define mbedtls_calloc calloc
+#define mbedtls_free free
+#endif
+
+/*
+ * ASN.1 DER decoding routines
+ */
+int mbedtls_asn1_get_len( unsigned char **p,
+ const unsigned char *end,
+ size_t *len )
+{
+ if( ( end - *p ) < 1 )
+ return( MBEDTLS_ERR_ASN1_OUT_OF_DATA );
+
+ if( ( **p & 0x80 ) == 0 )
+ *len = *(*p)++;
+ else
+ {
+ switch( **p & 0x7F )
+ {
+ case 1:
+ if( ( end - *p ) < 2 )
+ return( MBEDTLS_ERR_ASN1_OUT_OF_DATA );
+
+ *len = (*p)[1];
+ (*p) += 2;
+ break;
+
+ case 2:
+ if( ( end - *p ) < 3 )
+ return( MBEDTLS_ERR_ASN1_OUT_OF_DATA );
+
+ *len = ( (size_t)(*p)[1] << 8 ) | (*p)[2];
+ (*p) += 3;
+ break;
+
+ case 3:
+ if( ( end - *p ) < 4 )
+ return( MBEDTLS_ERR_ASN1_OUT_OF_DATA );
+
+ *len = ( (size_t)(*p)[1] << 16 ) |
+ ( (size_t)(*p)[2] << 8 ) | (*p)[3];
+ (*p) += 4;
+ break;
+
+ case 4:
+ if( ( end - *p ) < 5 )
+ return( MBEDTLS_ERR_ASN1_OUT_OF_DATA );
+
+ *len = ( (size_t)(*p)[1] << 24 ) | ( (size_t)(*p)[2] << 16 ) |
+ ( (size_t)(*p)[3] << 8 ) | (*p)[4];
+ (*p) += 5;
+ break;
+
+ default:
+ return( MBEDTLS_ERR_ASN1_INVALID_LENGTH );
+ }
+ }
+
+ if( *len > (size_t) ( end - *p ) )
+ return( MBEDTLS_ERR_ASN1_OUT_OF_DATA );
+
+ return( 0 );
+}
+
+int mbedtls_asn1_get_tag( unsigned char **p,
+ const unsigned char *end,
+ size_t *len, int tag )
+{
+ if( ( end - *p ) < 1 )
+ return( MBEDTLS_ERR_ASN1_OUT_OF_DATA );
+
+ if( **p != tag )
+ return( MBEDTLS_ERR_ASN1_UNEXPECTED_TAG );
+
+ (*p)++;
+
+ return( mbedtls_asn1_get_len( p, end, len ) );
+}
+
+int mbedtls_asn1_get_bool( unsigned char **p,
+ const unsigned char *end,
+ int *val )
+{
+ int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
+ size_t len;
+
+ if( ( ret = mbedtls_asn1_get_tag( p, end, &len, MBEDTLS_ASN1_BOOLEAN ) ) != 0 )
+ return( ret );
+
+ if( len != 1 )
+ return( MBEDTLS_ERR_ASN1_INVALID_LENGTH );
+
+ *val = ( **p != 0 ) ? 1 : 0;
+ (*p)++;
+
+ return( 0 );
+}
+
+static int asn1_get_tagged_int( unsigned char **p,
+ const unsigned char *end,
+ int tag, int *val )
+{
+ int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
+ size_t len;
+
+ if( ( ret = mbedtls_asn1_get_tag( p, end, &len, tag ) ) != 0 )
+ return( ret );
+
+ /*
+ * len==0 is malformed (0 must be represented as 020100 for INTEGER,
+ * or 0A0100 for ENUMERATED tags
+ */
+ if( len == 0 )
+ return( MBEDTLS_ERR_ASN1_INVALID_LENGTH );
+ /* This is a cryptography library. Reject negative integers. */
+ if( ( **p & 0x80 ) != 0 )
+ return( MBEDTLS_ERR_ASN1_INVALID_LENGTH );
+
+ /* Skip leading zeros. */
+ while( len > 0 && **p == 0 )
+ {
+ ++( *p );
+ --len;
+ }
+
+ /* Reject integers that don't fit in an int. This code assumes that
+ * the int type has no padding bit. */
+ if( len > sizeof( int ) )
+ return( MBEDTLS_ERR_ASN1_INVALID_LENGTH );
+ if( len == sizeof( int ) && ( **p & 0x80 ) != 0 )
+ return( MBEDTLS_ERR_ASN1_INVALID_LENGTH );
+
+ *val = 0;
+ while( len-- > 0 )
+ {
+ *val = ( *val << 8 ) | **p;
+ (*p)++;
+ }
+
+ return( 0 );
+}
+
+int mbedtls_asn1_get_int( unsigned char **p,
+ const unsigned char *end,
+ int *val )
+{
+ return( asn1_get_tagged_int( p, end, MBEDTLS_ASN1_INTEGER, val) );
+}
+
+int mbedtls_asn1_get_enum( unsigned char **p,
+ const unsigned char *end,
+ int *val )
+{
+ return( asn1_get_tagged_int( p, end, MBEDTLS_ASN1_ENUMERATED, val) );
+}
+
+#if defined(MBEDTLS_BIGNUM_C)
+int mbedtls_asn1_get_mpi( unsigned char **p,
+ const unsigned char *end,
+ mbedtls_mpi *X )
+{
+ int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
+ size_t len;
+
+ if( ( ret = mbedtls_asn1_get_tag( p, end, &len, MBEDTLS_ASN1_INTEGER ) ) != 0 )
+ return( ret );
+
+ ret = mbedtls_mpi_read_binary( X, *p, len );
+
+ *p += len;
+
+ return( ret );
+}
+#endif /* MBEDTLS_BIGNUM_C */
+
+int mbedtls_asn1_get_bitstring( unsigned char **p, const unsigned char *end,
+ mbedtls_asn1_bitstring *bs)
+{
+ int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
+
+ /* Certificate type is a single byte bitstring */
+ if( ( ret = mbedtls_asn1_get_tag( p, end, &bs->len, MBEDTLS_ASN1_BIT_STRING ) ) != 0 )
+ return( ret );
+
+ /* Check length, subtract one for actual bit string length */
+ if( bs->len < 1 )
+ return( MBEDTLS_ERR_ASN1_OUT_OF_DATA );
+ bs->len -= 1;
+
+ /* Get number of unused bits, ensure unused bits <= 7 */
+ bs->unused_bits = **p;
+ if( bs->unused_bits > 7 )
+ return( MBEDTLS_ERR_ASN1_INVALID_LENGTH );
+ (*p)++;
+
+ /* Get actual bitstring */
+ bs->p = *p;
+ *p += bs->len;
+
+ if( *p != end )
+ return( MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
+
+ return( 0 );
+}
+
+/*
+ * Traverse an ASN.1 "SEQUENCE OF <tag>"
+ * and call a callback for each entry found.
+ */
+int mbedtls_asn1_traverse_sequence_of(
+ unsigned char **p,
+ const unsigned char *end,
+ unsigned char tag_must_mask, unsigned char tag_must_val,
+ unsigned char tag_may_mask, unsigned char tag_may_val,
+ int (*cb)( void *ctx, int tag,
+ unsigned char *start, size_t len ),
+ void *ctx )
+{
+ int ret;
+ size_t len;
+
+ /* Get main sequence tag */
+ if( ( ret = mbedtls_asn1_get_tag( p, end, &len,
+ MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 )
+ {
+ return( ret );
+ }
+
+ if( *p + len != end )
+ return( MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
+
+ while( *p < end )
+ {
+ unsigned char const tag = *(*p)++;
+
+ if( ( tag & tag_must_mask ) != tag_must_val )
+ return( MBEDTLS_ERR_ASN1_UNEXPECTED_TAG );
+
+ if( ( ret = mbedtls_asn1_get_len( p, end, &len ) ) != 0 )
+ return( ret );
+
+ if( ( tag & tag_may_mask ) == tag_may_val )
+ {
+ if( cb != NULL )
+ {
+ ret = cb( ctx, tag, *p, len );
+ if( ret != 0 )
+ return( ret );
+ }
+ }
+
+ *p += len;
+ }
+
+ return( 0 );
+}
+
+/*
+ * Get a bit string without unused bits
+ */
+int mbedtls_asn1_get_bitstring_null( unsigned char **p, const unsigned char *end,
+ size_t *len )
+{
+ int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
+
+ if( ( ret = mbedtls_asn1_get_tag( p, end, len, MBEDTLS_ASN1_BIT_STRING ) ) != 0 )
+ return( ret );
+
+ if( *len == 0 )
+ return( MBEDTLS_ERR_ASN1_INVALID_DATA );
+ --( *len );
+
+ if( **p != 0 )
+ return( MBEDTLS_ERR_ASN1_INVALID_DATA );
+ ++( *p );
+
+ return( 0 );
+}
+
+void mbedtls_asn1_sequence_free( mbedtls_asn1_sequence *seq )
+{
+ while( seq != NULL )
+ {
+ mbedtls_asn1_sequence *next = seq->next;
+ mbedtls_platform_zeroize( seq, sizeof( *seq ) );
+ mbedtls_free( seq );
+ seq = next;
+ }
+}
+
+typedef struct
+{
+ int tag;
+ mbedtls_asn1_sequence *cur;
+} asn1_get_sequence_of_cb_ctx_t;
+
+static int asn1_get_sequence_of_cb( void *ctx,
+ int tag,
+ unsigned char *start,
+ size_t len )
+{
+ asn1_get_sequence_of_cb_ctx_t *cb_ctx =
+ (asn1_get_sequence_of_cb_ctx_t *) ctx;
+ mbedtls_asn1_sequence *cur =
+ cb_ctx->cur;
+
+ if( cur->buf.p != NULL )
+ {
+ cur->next =
+ mbedtls_calloc( 1, sizeof( mbedtls_asn1_sequence ) );
+
+ if( cur->next == NULL )
+ return( MBEDTLS_ERR_ASN1_ALLOC_FAILED );
+
+ cur = cur->next;
+ }
+
+ cur->buf.p = start;
+ cur->buf.len = len;
+ cur->buf.tag = tag;
+
+ cb_ctx->cur = cur;
+ return( 0 );
+}
+
+/*
+ * Parses and splits an ASN.1 "SEQUENCE OF <tag>"
+ */
+int mbedtls_asn1_get_sequence_of( unsigned char **p,
+ const unsigned char *end,
+ mbedtls_asn1_sequence *cur,
+ int tag)
+{
+ asn1_get_sequence_of_cb_ctx_t cb_ctx = { tag, cur };
+ memset( cur, 0, sizeof( mbedtls_asn1_sequence ) );
+ return( mbedtls_asn1_traverse_sequence_of(
+ p, end, 0xFF, tag, 0, 0,
+ asn1_get_sequence_of_cb, &cb_ctx ) );
+}
+
+int mbedtls_asn1_get_alg( unsigned char **p,
+ const unsigned char *end,
+ mbedtls_asn1_buf *alg, mbedtls_asn1_buf *params )
+{
+ int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
+ size_t len;
+
+ if( ( ret = mbedtls_asn1_get_tag( p, end, &len,
+ MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 )
+ return( ret );
+
+ if( ( end - *p ) < 1 )
+ return( MBEDTLS_ERR_ASN1_OUT_OF_DATA );
+
+ alg->tag = **p;
+ end = *p + len;
+
+ if( ( ret = mbedtls_asn1_get_tag( p, end, &alg->len, MBEDTLS_ASN1_OID ) ) != 0 )
+ return( ret );
+
+ alg->p = *p;
+ *p += alg->len;
+
+ if( *p == end )
+ {
+ mbedtls_platform_zeroize( params, sizeof(mbedtls_asn1_buf) );
+ return( 0 );
+ }
+
+ params->tag = **p;
+ (*p)++;
+
+ if( ( ret = mbedtls_asn1_get_len( p, end, &params->len ) ) != 0 )
+ return( ret );
+
+ params->p = *p;
+ *p += params->len;
+
+ if( *p != end )
+ return( MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
+
+ return( 0 );
+}
+
+int mbedtls_asn1_get_alg_null( unsigned char **p,
+ const unsigned char *end,
+ mbedtls_asn1_buf *alg )
+{
+ int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
+ mbedtls_asn1_buf params;
+
+ memset( &params, 0, sizeof(mbedtls_asn1_buf) );
+
+ if( ( ret = mbedtls_asn1_get_alg( p, end, alg, &params ) ) != 0 )
+ return( ret );
+
+ if( ( params.tag != MBEDTLS_ASN1_NULL && params.tag != 0 ) || params.len != 0 )
+ return( MBEDTLS_ERR_ASN1_INVALID_DATA );
+
+ return( 0 );
+}
+
+void mbedtls_asn1_free_named_data( mbedtls_asn1_named_data *cur )
+{
+ if( cur == NULL )
+ return;
+
+ mbedtls_free( cur->oid.p );
+ mbedtls_free( cur->val.p );
+
+ mbedtls_platform_zeroize( cur, sizeof( mbedtls_asn1_named_data ) );
+}
+
+void mbedtls_asn1_free_named_data_list( mbedtls_asn1_named_data **head )
+{
+ mbedtls_asn1_named_data *cur;
+
+ while( ( cur = *head ) != NULL )
+ {
+ *head = cur->next;
+ mbedtls_asn1_free_named_data( cur );
+ mbedtls_free( cur );
+ }
+}
+
+mbedtls_asn1_named_data *mbedtls_asn1_find_named_data( mbedtls_asn1_named_data *list,
+ const char *oid, size_t len )
+{
+ while( list != NULL )
+ {
+ if( list->oid.len == len &&
+ memcmp( list->oid.p, oid, len ) == 0 )
+ {
+ break;
+ }
+
+ list = list->next;
+ }
+
+ return( list );
+}
+
+#endif /* MBEDTLS_ASN1_PARSE_C */