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simple-mbed-cloud-client/mbed-cloud-client/source/CertificateParser.c@0:6b753f761943, 2018-10-12 (annotated)

Committer:
JimCarver
Date:
Fri Oct 12 21:22:49 2018 +0000
Revision:
0:6b753f761943
Initial commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
JimCarver 0:6b753f761943 1 // ----------------------------------------------------------------------------
JimCarver 0:6b753f761943 2 // Copyright 2016-2017 ARM Ltd.
JimCarver 0:6b753f761943 3 //
JimCarver 0:6b753f761943 4 // SPDX-License-Identifier: Apache-2.0
JimCarver 0:6b753f761943 5 //
JimCarver 0:6b753f761943 6 // Licensed under the Apache License, Version 2.0 (the "License");
JimCarver 0:6b753f761943 7 // you may not use this file except in compliance with the License.
JimCarver 0:6b753f761943 8 // You may obtain a copy of the License at
JimCarver 0:6b753f761943 9 //
JimCarver 0:6b753f761943 10 // http://www.apache.org/licenses/LICENSE-2.0
JimCarver 0:6b753f761943 11 //
JimCarver 0:6b753f761943 12 // Unless required by applicable law or agreed to in writing, software
JimCarver 0:6b753f761943 13 // distributed under the License is distributed on an "AS IS" BASIS,
JimCarver 0:6b753f761943 14 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
JimCarver 0:6b753f761943 15 // See the License for the specific language governing permissions and
JimCarver 0:6b753f761943 16 // limitations under the License.
JimCarver 0:6b753f761943 17 // ----------------------------------------------------------------------------
JimCarver 0:6b753f761943 18
JimCarver 0:6b753f761943 19 #include <stdint.h>
JimCarver 0:6b753f761943 20 #include "pal.h"
JimCarver 0:6b753f761943 21 #include "mbed-trace/mbed_trace.h"
JimCarver 0:6b753f761943 22
JimCarver 0:6b753f761943 23 #define TRACE_GROUP "mClt"
JimCarver 0:6b753f761943 24
JimCarver 0:6b753f761943 25 bool extract_field_from_certificate(const uint8_t* cer, size_t cer_len, const char *field, char* value)
JimCarver 0:6b753f761943 26 {
JimCarver 0:6b753f761943 27 #if 1 // TODO : Uncomment once PAL has feature to extract "L" from certificate
JimCarver 0:6b753f761943 28 tr_debug("extract_field_from_certificate");
JimCarver 0:6b753f761943 29
JimCarver 0:6b753f761943 30 palX509Attr_t attr = PAL_X509_L_ATTR;
JimCarver 0:6b753f761943 31 if (strcmp(field,"CN") == 0) {
JimCarver 0:6b753f761943 32 attr = PAL_X509_CN_ATTR;
JimCarver 0:6b753f761943 33 } else if (strcmp(field,"L") == 0) {
JimCarver 0:6b753f761943 34 attr = PAL_X509_L_ATTR;
JimCarver 0:6b753f761943 35 } else {
JimCarver 0:6b753f761943 36 return false;
JimCarver 0:6b753f761943 37 }
JimCarver 0:6b753f761943 38
JimCarver 0:6b753f761943 39 palX509Handle_t cert = NULL;
JimCarver 0:6b753f761943 40 size_t len = 0;
JimCarver 0:6b753f761943 41 palStatus_t ret = pal_x509Initiate(&cert);
JimCarver 0:6b753f761943 42 if (ret != PAL_SUCCESS) {
JimCarver 0:6b753f761943 43 tr_error("extract_field_from_certificate - cert init failed: %d", (int)ret);
JimCarver 0:6b753f761943 44 pal_x509Free(&cert);
JimCarver 0:6b753f761943 45 return false;
JimCarver 0:6b753f761943 46 }
JimCarver 0:6b753f761943 47 ret = pal_x509CertParse(cert, cer, cer_len);
JimCarver 0:6b753f761943 48 if (ret != PAL_SUCCESS) {
JimCarver 0:6b753f761943 49 tr_error("extract_field_from_certificate - cert parse failed: %d", (int)ret);
JimCarver 0:6b753f761943 50 pal_x509Free(&cert);
JimCarver 0:6b753f761943 51 return false;
JimCarver 0:6b753f761943 52 }
JimCarver 0:6b753f761943 53 ret = pal_x509CertGetAttribute(cert, attr, value, 64, &len);
JimCarver 0:6b753f761943 54 if (ret != PAL_SUCCESS) {
JimCarver 0:6b753f761943 55 tr_error("extract_field_from_certificate - cert attr get failed: %d", (int)ret);
JimCarver 0:6b753f761943 56 pal_x509Free(&cert);
JimCarver 0:6b753f761943 57 return false;
JimCarver 0:6b753f761943 58 }
JimCarver 0:6b753f761943 59 pal_x509Free(&cert);
JimCarver 0:6b753f761943 60 return true;
JimCarver 0:6b753f761943 61 #else
JimCarver 0:6b753f761943 62 return false;
JimCarver 0:6b753f761943 63 #endif
JimCarver 0:6b753f761943 64 }
JimCarver 0:6b753f761943 65
JimCarver 0:6b753f761943 66