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dgarskedgarske
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OCSP non-blocking example using Certificate Manager.
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‎.gitignore‎

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@@ -247,6 +247,9 @@ embedded/tls-sock-threaded
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embedded/tls-threaded
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hash/sha256-hash
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ocsp/ocsp_nonblock/ocsp_nonblock
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sslkeylog.log
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tpm/evp_tpm

‎ocsp/ocsp_nonblock/Makefile‎

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# Examples Makefile
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CC = gcc
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LIB_PATH = /usr/local
4+
CFLAGS = -Wall -I$(LIB_PATH)/include
5+
LIBS = -L$(LIB_PATH)/lib
6+
7+
# option variables
8+
DYN_LIB = -lwolfssl
9+
STATIC_LIB = $(LIB_PATH)/lib/libwolfssl.a
10+
DEBUG_FLAGS = -g -DDEBUG
11+
DEBUG_INC_PATHS = -MD
12+
OPTIMIZE = -Os
13+
14+
# Options
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#CFLAGS+=$(DEBUG_FLAGS)
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CFLAGS+=$(OPTIMIZE)
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#LIBS+=$(STATIC_LIB)
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LIBS+=$(DYN_LIB)
19+
20+
# build targets
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SRC=$(wildcard *.c)
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TARGETS=$(patsubst %.c, %, $(SRC))
23+
24+
.PHONY: clean all
25+
26+
all: $(TARGETS)
27+
28+
debug: CFLAGS+=$(DEBUG_FLAGS)
29+
debug: all
30+
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# build template
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%: %.c
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$(CC) -o $@ $< $(CFLAGS) $(LIBS)
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clean:
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rm -f $(TARGETS)

‎ocsp/ocsp_nonblock/README.md‎

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@@ -0,0 +1,35 @@
1+
# OCSP Examples
2+
3+
Online Certificate Status Protocol (OCSP) is used for obtaining the revocation status of an X.509 digital certificate.
4+
5+
6+
## OCSP non-blocking example
7+
8+
This uses a google.com certificate chain to demonstrate validating revocation status using an OCSP server.
9+
10+
The Google.com certificate defines OCSP in the X509v3 extension "Authority Information Access" section.
11+
12+
Example usage:
13+
14+
```sh
15+
$ ./configure --enable-ocsp CFLAGS="-DHAVE_IO_TIMEOUT -DWOLFSSL_NONBLOCK_OCSP"
16+
$ make
17+
$ sudo make install
18+
19+
$ make
20+
# gcc -o ocsp_nonblock ocsp_nonblock.c -Wall -I/usr/local/include -Os -L/usr/local/lib -lwolfssl
21+
22+
$ ./ocsp_nonblock
23+
Load Trusted: GlobalSign CA (ret 1)
24+
Load Trusted: GTS CA 101 (ret 1)
25+
Convert Google.com PEM cert to DER (ret 1)
26+
Verify Google.com cert: 1
27+
OCSP Lookup:
28+
URL: http://ocsp.pki.goog/gts1c3
29+
Domain: ocsp.pki.goog
30+
Path: /gts1c3
31+
Port: 80
32+
OCSP Response: ret 471, nonblock count 681228
33+
Check OCSP for Google.com (ret 1)
34+
Ret = 1: success
35+
```

‎ocsp/ocsp_nonblock/ocsp_nonblock.c‎

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1+
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/* ocsp_nonblock.c
3+
*
4+
* Copyright (C) 2006-2022 wolfSSL Inc.
5+
*
6+
* This file is part of wolfSSL. (formerly known as CyaSSL)
7+
*
8+
* wolfSSL is free software; you can redistribute it and/or modify
9+
* it under the terms of the GNU General Public License as published by
10+
* the Free Software Foundation; either version 2 of the License, or
11+
* (at your option) any later version.
12+
*
13+
* wolfSSL is distributed in the hope that it will be useful,
14+
* but WITHOUT ANY WARRANTY; without even the implied warranty of
15+
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16+
* GNU General Public License for more details.
17+
*
18+
* You should have received a copy of the GNU General Public License
19+
* along with this program; if not, write to the Free Software
20+
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
21+
**/
22+
23+
#include <wolfssl/options.h>
24+
#include <wolfssl/ssl.h>
25+
#include <wolfssl/wolfio.h>
26+
#include <wolfssl/error-ssl.h>
27+
#include <wolfssl/wolfcrypt/error-crypt.h>
28+
#include <wolfssl/wolfcrypt/logging.h>
29+
30+
31+
/* GTS Root R1 */
32+
static const char* kGlobalSignRootCA =
33+
"-----BEGIN CERTIFICATE-----\n"
34+
"MIIFYjCCBEqgAwIBAgIQd70NbNs2+RrqIQ/E8FjTDTANBgkqhkiG9w0BAQsFADBX\n"
35+
"MQswCQYDVQQGEwJCRTEZMBcGA1UEChMQR2xvYmFsU2lnbiBudi1zYTEQMA4GA1UE\n"
36+
"CxMHUm9vdCBDQTEbMBkGA1UEAxMSR2xvYmFsU2lnbiBSb290IENBMB4XDTIwMDYx\n"
37+
"OTAwMDA0MloXDTI4MDEyODAwMDA0MlowRzELMAkGA1UEBhMCVVMxIjAgBgNVBAoT\n"
38+
"GUdvb2dsZSBUcnVzdCBTZXJ2aWNlcyBMTEMxFDASBgNVBAMTC0dUUyBSb290IFIx\n"
39+
"MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAthECix7joXebO9y/lD63\n"
40+
"ladAPKH9gvl9MgaCcfb2jH/76Nu8ai6Xl6OMS/kr9rH5zoQdsfnFl97vufKj6bwS\n"
41+
"iV6nqlKr+CMny6SxnGPb15l+8Ape62im9MZaRw1NEDPjTrETo8gYbEvs/AmQ351k\n"
42+
"KSUjB6G00j0uYODP0gmHu81I8E3CwnqIiru6z1kZ1q+PsAewnjHxgsHA3y6mbWwZ\n"
43+
"DrXYfiYaRQM9sHmklCitD38m5agI/pboPGiUU+6DOogrFZYJsuB6jC511pzrp1Zk\n"
44+
"j5ZPaK49l8KEj8C8QMALXL32h7M1bKwYUH+E4EzNktMg6TO8UpmvMrUpsyUqtEj5\n"
45+
"cuHKZPfmghCN6J3Cioj6OGaK/GP5Afl4/Xtcd/p2h/rs37EOeZVXtL0m79YB0esW\n"
46+
"CruOC7XFxYpVq9Os6pFLKcwZpDIlTirxZUTQAs6qzkm06p98g7BAe+dDq6dso499\n"
47+
"iYH6TKX/1Y7DzkvgtdizjkXPdsDtQCv9Uw+wp9U7DbGKogPeMa3Md+pvez7W35Ei\n"
48+
"Eua++tgy/BBjFFFy3l3WFpO9KWgz7zpm7AeKJt8T11dleCfeXkkUAKIAf5qoIbap\n"
49+
"sZWwpbkNFhHax2xIPEDgfg1azVY80ZcFuctL7TlLnMQ/0lUTbiSw1nH69MG6zO0b\n"
50+
"9f6BQdgAmD06yK56mDcYBZUCAwEAAaOCATgwggE0MA4GA1UdDwEB/wQEAwIBhjAP\n"
51+
"BgNVHRMBAf8EBTADAQH/MB0GA1UdDgQWBBTkrysmcRorSCeFL1JmLO/wiRNxPjAf\n"
52+
"BgNVHSMEGDAWgBRge2YaRQ2XyolQL30EzTSo//z9SzBgBggrBgEFBQcBAQRUMFIw\n"
53+
"JQYIKwYBBQUHMAGGGWh0dHA6Ly9vY3NwLnBraS5nb29nL2dzcjEwKQYIKwYBBQUH\n"
54+
"MAKGHWh0dHA6Ly9wa2kuZ29vZy9nc3IxL2dzcjEuY3J0MDIGA1UdHwQrMCkwJ6Al\n"
55+
"oCOGIWh0dHA6Ly9jcmwucGtpLmdvb2cvZ3NyMS9nc3IxLmNybDA7BgNVHSAENDAy\n"
56+
"MAgGBmeBDAECATAIBgZngQwBAgIwDQYLKwYBBAHWeQIFAwIwDQYLKwYBBAHWeQIF\n"
57+
"AwMwDQYJKoZIhvcNAQELBQADggEBADSkHrEoo9C0dhemMXoh6dFSPsjbdBZBiLg9\n"
58+
"NR3t5P+T4Vxfq7vqfM/b5A3Ri1fyJm9bvhdGaJQ3b2t6yMAYN/olUazsaL+yyEn9\n"
59+
"WprKASOshIArAoyZl+tJaox118fessmXn1hIVw41oeQa1v1vg4Fv74zPl6/AhSrw\n"
60+
"9U5pCZEt4Wi4wStz6dTZ/CLANx8LZh1J7QJVj2fhMtfTJr9w4z30Z209fOU0iOMy\n"
61+
"+qduBmpvvYuR7hZL6Dupszfnw0Skfths18dG9ZKb59UhvmaSGZRVbNQpsg3BZlvi\n"
62+
"d0lIKO2d1xozclOzgjXPYovJJIultzkMu34qQb9Sz/yilrbCgj8=\n"
63+
"-----END CERTIFICATE-----";
64+
65+
/* GTS CA 1C3 - Intermediate */
66+
static const char* kGTSCA101 =
67+
"-----BEGIN CERTIFICATE-----\n"
68+
"MIIFljCCA36gAwIBAgINAgO8U1lrNMcY9QFQZjANBgkqhkiG9w0BAQsFADBHMQsw\n"
69+
"CQYDVQQGEwJVUzEiMCAGA1UEChMZR29vZ2xlIFRydXN0IFNlcnZpY2VzIExMQzEU\n"
70+
"MBIGA1UEAxMLR1RTIFJvb3QgUjEwHhcNMjAwODEzMDAwMDQyWhcNMjcwOTMwMDAw\n"
71+
"MDQyWjBGMQswCQYDVQQGEwJVUzEiMCAGA1UEChMZR29vZ2xlIFRydXN0IFNlcnZp\n"
72+
"Y2VzIExMQzETMBEGA1UEAxMKR1RTIENBIDFDMzCCASIwDQYJKoZIhvcNAQEBBQAD\n"
73+
"ggEPADCCAQoCggEBAPWI3+dijB43+DdCkH9sh9D7ZYIl/ejLa6T/belaI+KZ9hzp\n"
74+
"kgOZE3wJCor6QtZeViSqejOEH9Hpabu5dOxXTGZok3c3VVP+ORBNtzS7XyV3NzsX\n"
75+
"lOo85Z3VvMO0Q+sup0fvsEQRY9i0QYXdQTBIkxu/t/bgRQIh4JZCF8/ZK2VWNAcm\n"
76+
"BA2o/X3KLu/qSHw3TT8An4Pf73WELnlXXPxXbhqW//yMmqaZviXZf5YsBvcRKgKA\n"
77+
"gOtjGDxQSYflispfGStZloEAoPtR28p3CwvJlk/vcEnHXG0g/Zm0tOLKLnf9LdwL\n"
78+
"tmsTDIwZKxeWmLnwi/agJ7u2441Rj72ux5uxiZ0CAwEAAaOCAYAwggF8MA4GA1Ud\n"
79+
"DwEB/wQEAwIBhjAdBgNVHSUEFjAUBggrBgEFBQcDAQYIKwYBBQUHAwIwEgYDVR0T\n"
80+
"AQH/BAgwBgEB/wIBADAdBgNVHQ4EFgQUinR/r4XN7pXNPZzQ4kYU83E1HScwHwYD\n"
81+
"VR0jBBgwFoAU5K8rJnEaK0gnhS9SZizv8IkTcT4waAYIKwYBBQUHAQEEXDBaMCYG\n"
82+
"CCsGAQUFBzABhhpodHRwOi8vb2NzcC5wa2kuZ29vZy9ndHNyMTAwBggrBgEFBQcw\n"
83+
"AoYkaHR0cDovL3BraS5nb29nL3JlcG8vY2VydHMvZ3RzcjEuZGVyMDQGA1UdHwQt\n"
84+
"MCswKaAnoCWGI2h0dHA6Ly9jcmwucGtpLmdvb2cvZ3RzcjEvZ3RzcjEuY3JsMFcG\n"
85+
"A1UdIARQME4wOAYKKwYBBAHWeQIFAzAqMCgGCCsGAQUFBwIBFhxodHRwczovL3Br\n"
86+
"aS5nb29nL3JlcG9zaXRvcnkvMAgGBmeBDAECATAIBgZngQwBAgIwDQYJKoZIhvcN\n"
87+
"AQELBQADggIBAIl9rCBcDDy+mqhXlRu0rvqrpXJxtDaV/d9AEQNMwkYUuxQkq/BQ\n"
88+
"cSLbrcRuf8/xam/IgxvYzolfh2yHuKkMo5uhYpSTld9brmYZCwKWnvy15xBpPnrL\n"
89+
"RklfRuFBsdeYTWU0AIAaP0+fbH9JAIFTQaSSIYKCGvGjRFsqUBITTcFTNvNCCK9U\n"
90+
"+o53UxtkOCcXCb1YyRt8OS1b887U7ZfbFAO/CVMkH8IMBHmYJvJh8VNS/UKMG2Yr\n"
91+
"PxWhu//2m+OBmgEGcYk1KCTd4b3rGS3hSMs9WYNRtHTGnXzGsYZbr8w0xNPM1IER\n"
92+
"lQCh9BIiAfq0g3GvjLeMcySsN1PCAJA/Ef5c7TaUEDu9Ka7ixzpiO2xj2YC/WXGs\n"
93+
"Yye5TBeg2vZzFb8q3o/zpWwygTMD0IZRcZk0upONXbVRWPeyk+gB9lm+cZv9TSjO\n"
94+
"z23HFtz30dZGm6fKa+l3D/2gthsjgx0QGtkJAITgRNOidSOzNIb2ILCkXhAd4FJG\n"
95+
"AJ2xDx8hcFH1mt0G/FX0Kw4zd8NLQsLxdxP8c4CU6x+7Nz/OAipmsHMdMqUybDKw\n"
96+
"juDEI/9bfU1lcKwrmz3O2+BtjjKAvpafkmO8l7tdufThcV4q5O8DIrGKZTqPwJNl\n"
97+
"1IXNDw9bg1kWRxYtnCQ6yICmJhSFm/Y3m6xv+cXDBlHz4n/FsRC6UfTd\n"
98+
"-----END CERTIFICATE-----";
99+
100+
/* Google.com */
101+
static const char* kGoogleCom =
102+
"-----BEGIN CERTIFICATE-----\n"
103+
"MIIEhjCCA26gAwIBAgIQWwvxxxXoxEkSWJsftFiO7jANBgkqhkiG9w0BAQsFADBG\n"
104+
"MQswCQYDVQQGEwJVUzEiMCAGA1UEChMZR29vZ2xlIFRydXN0IFNlcnZpY2VzIExM\n"
105+
"QzETMBEGA1UEAxMKR1RTIENBIDFDMzAeFw0yMjA1MDQxNzQwMDVaFw0yMjA3Mjcx\n"
106+
"NzQwMDRaMBkxFzAVBgNVBAMTDnd3dy5nb29nbGUuY29tMFkwEwYHKoZIzj0CAQYI\n"
107+
"KoZIzj0DAQcDQgAEy3kqjk9F7+Ap8XWjvvDnAUfiJXV6bHblqegicb6Krq3zUw8T\n"
108+
"KUQ8wxMtRoZXHv9DtZgC1ErW6qAPt0BWdzP7waOCAmYwggJiMA4GA1UdDwEB/wQE\n"
109+
"AwIHgDATBgNVHSUEDDAKBggrBgEFBQcDATAMBgNVHRMBAf8EAjAAMB0GA1UdDgQW\n"
110+
"BBSoMrJUWSIVHdDkqXgfi2VI5nQ2TjAfBgNVHSMEGDAWgBSKdH+vhc3ulc09nNDi\n"
111+
"RhTzcTUdJzBqBggrBgEFBQcBAQReMFwwJwYIKwYBBQUHMAGGG2h0dHA6Ly9vY3Nw\n"
112+
"LnBraS5nb29nL2d0czFjMzAxBggrBgEFBQcwAoYlaHR0cDovL3BraS5nb29nL3Jl\n"
113+
"cG8vY2VydHMvZ3RzMWMzLmRlcjAZBgNVHREEEjAQgg53d3cuZ29vZ2xlLmNvbTAh\n"
114+
"BgNVHSAEGjAYMAgGBmeBDAECATAMBgorBgEEAdZ5AgUDMDwGA1UdHwQ1MDMwMaAv\n"
115+
"oC2GK2h0dHA6Ly9jcmxzLnBraS5nb29nL2d0czFjMy9RT3ZKME4xc1QyQS5jcmww\n"
116+
"ggEDBgorBgEEAdZ5AgQCBIH0BIHxAO8AdQBByMqx3yJGShDGoToJQodeTjGLGwPr\n"
117+
"60vHaPCQYpYG9gAAAYCQX05XAAAEAwBGMEQCIA/HX1T2lssgnL8weEBFzPsILM4q\n"
118+
"/3iJ5FyXJgZZ9ZMQAiBi0HochB+UgZMpslJ72ei48hvzGErcXvUJUwXVx4x6ZwB2\n"
119+
"ACl5vvCeOTkh8FZzn2Old+W+V32cYAr4+U1dJlwlXceEAAABgJBfTiYAAAQDAEcw\n"
120+
"RQIhAIcwKuzq6j1VwM1F3P/3L0Un5LKUt4o52+KREIULHJ6yAiAIVxHlI0vTToyP\n"
121+
"N96UQkuM0FvPus2vGZLfIimVHrqrQzANBgkqhkiG9w0BAQsFAAOCAQEAw/wVl+C1\n"
122+
"0mjwVu3NCu9sbnX47TuPz2lwT/6aUOMmRQg5Z3I9qWwRs5TdwYS/RXjGbATG8STu\n"
123+
"Qmq5h4GRil5523D2OKmJ2ZBc033tk/aDJzf3bRQrFnzYNDIo2zW7rrdg0yUE2ytq\n"
124+
"30pP0so32wVtqAKZOdtgYyQs1WXEgOVouGkecgdKv2pMyWa6TVjMNnMxCwqq4MRG\n"
125+
"R5thr5l5tg20zvpGM7bE/VuYegTSqQyaF6arUpjpOX7xclfERZ1RUOh1EHHnH4gf\n"
126+
"l7eOUXh950nbb3bjp2bUF1CjsnveJI1UfqcUrp3Tuoh7ScT1gEiJ82qGsVtyq3AU\n"
127+
"FvKz0TJH0ipymA==\n"
128+
"-----END CERTIFICATE-----";
129+
130+
131+
#ifndef HTTP_SCRATCH_BUFFER_SIZE
132+
#define HTTP_SCRATCH_BUFFER_SIZE 512
133+
#endif
134+
#ifndef MAX_URL_ITEM_SIZE
135+
#define MAX_URL_ITEM_SIZE 80
136+
#endif
137+
#ifndef DEFAULT_TIMEOUT_SEC
138+
#define DEFAULT_TIMEOUT_SEC 0 /* no timeout */
139+
#endif
140+
141+
static int io_timeout_sec = DEFAULT_TIMEOUT_SEC;
142+
143+
/* Return size of the OCSP response or negative for error */
144+
static int OcspLookupNonBlockCb(void* ctx, const char* url, int urlSz,
145+
byte* ocspReqBuf, int ocspReqSz, byte** ocspRespBuf)
146+
{
147+
SOCKET_T sfd = SOCKET_INVALID;
148+
word16 port;
149+
int ret = -1;
150+
char path[MAX_URL_ITEM_SIZE];
151+
char domainName[MAX_URL_ITEM_SIZE];
152+
int nonBlockCnt = 0;
153+
154+
if (ocspReqBuf == NULL || ocspReqSz == 0) {
155+
printf("OCSP request is required for lookup\n");
156+
}
157+
else if (ocspRespBuf == NULL) {
158+
printf("Cannot save OCSP response\n");
159+
}
160+
else if (wolfIO_DecodeUrl(url, urlSz, domainName, path, &port) < 0) {
161+
printf("Unable to decode OCSP URL\n");
162+
}
163+
else {
164+
/* Note: This is free'd in OcspRespFreeCb callback */
165+
int httpBufSz = HTTP_SCRATCH_BUFFER_SIZE;
166+
byte* httpBuf = (byte*)XMALLOC(httpBufSz, NULL, DYNAMIC_TYPE_OCSP);
167+
168+
printf("OCSP Lookup:\n");
169+
printf("\tURL: %s\n", url);
170+
printf("\tDomain: %s\n", domainName);
171+
printf("\tPath: %s\n", path);
172+
printf("\tPort: %d\n", port);
173+
174+
if (httpBuf == NULL) {
175+
printf("Unable to create OCSP response buffer\n");
176+
}
177+
else {
178+
httpBufSz = wolfIO_HttpBuildRequestOcsp(domainName, path, ocspReqSz,
179+
httpBuf, httpBufSz);
180+
181+
ret = wolfIO_TcpConnect(&sfd, domainName, port, io_timeout_sec);
182+
if (ret == 0) {
183+
#if defined(WOLFSSL_NONBLOCK_OCSP) && defined(HAVE_IO_TIMEOUT)
184+
wolfIO_SetBlockingMode(sfd, 1); /* non-blocking */
185+
#endif
186+
187+
if (wolfIO_Send(sfd, (char*)httpBuf, httpBufSz, 0) !=
188+
httpBufSz) {
189+
printf("OCSP http request failed\n");
190+
}
191+
else if (wolfIO_Send(sfd, (char*)ocspReqBuf, ocspReqSz, 0) !=
192+
ocspReqSz) {
193+
printf("OCSP ocsp request failed\n");
194+
}
195+
else {
196+
do {
197+
ret = wolfIO_HttpProcessResponseOcsp(sfd, ocspRespBuf,
198+
httpBuf, HTTP_SCRATCH_BUFFER_SIZE, ctx);
199+
nonBlockCnt++;
200+
} while (ret == OCSP_WANT_READ);
201+
printf("OCSP Response: ret %d, nonblock count %d\n",
202+
ret, nonBlockCnt);
203+
}
204+
}
205+
else {
206+
printf("OCSP Responder connection failed\n");
207+
}
208+
if (sfd != SOCKET_INVALID)
209+
CloseSocket(sfd);
210+
XFREE(httpBuf, ctx, DYNAMIC_TYPE_OCSP);
211+
}
212+
}
213+
return ret;
214+
}
215+
216+
static void OcspRespFreeCb(void* ctx, byte *resp)
217+
{
218+
if (resp)
219+
XFREE(resp, NULL, DYNAMIC_TYPE_OCSP);
220+
221+
(void)ctx;
222+
}
223+
224+
int main(void)
225+
{
226+
int ret = -1;
227+
WOLFSSL_CERT_MANAGER* pCm;
228+
byte der[2000];
229+
int derSz;
230+
231+
#if 0
232+
wolfSSL_Debugging_ON();
233+
#endif
234+
235+
/* Create certificate manager context */
236+
pCm = wolfSSL_CertManagerNew();
237+
if (pCm) {
238+
#ifdef HAVE_OCSP
239+
/* Enable OCSP */
240+
ret = wolfSSL_CertManagerEnableOCSP(pCm, 0);
241+
if (ret == WOLFSSL_SUCCESS) {
242+
/* Setup callbacks for OCSP */
243+
ret = wolfSSL_CertManagerSetOCSP_Cb(pCm,
244+
OcspLookupNonBlockCb,
245+
OcspRespFreeCb,
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NULL /* optional context */
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);
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}
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#else
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ret = WOLFSSL_SUCCESS;
251+
#endif
252+
if (ret == WOLFSSL_SUCCESS) {
253+
/* Load root CA into Certificate Manager */
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ret = wolfSSL_CertManagerLoadCABuffer(pCm,
255+
(const unsigned char *)kGlobalSignRootCA,
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XSTRLEN(kGlobalSignRootCA), WOLFSSL_FILETYPE_PEM);
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printf("Load Trusted: GlobalSign CA (ret %d)\n", ret);
258+
}
259+
if (ret == WOLFSSL_SUCCESS) {
260+
/* Load intermediate CA into Certificate Manager */
261+
ret = wolfSSL_CertManagerLoadCABuffer(pCm,
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(const unsigned char *)kGTSCA101,
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XSTRLEN(kGTSCA101), WOLFSSL_FILETYPE_PEM);
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printf("Load Trusted: GTS CA 101 (ret %d)\n", ret);
265+
}
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if (ret == WOLFSSL_SUCCESS) {
267+
/* Convert certificate to DER/ASN.1 */
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ret = wc_CertPemToDer(
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(unsigned char*)kGoogleCom, XSTRLEN(kGoogleCom),
270+
der, sizeof(der), CERT_TYPE);
271+
if (ret >= 0) {
272+
derSz = ret;
273+
ret = WOLFSSL_SUCCESS;
274+
}
275+
printf("Convert Google.com PEM cert to DER (ret %d)\n", ret);
276+
}
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if (ret == WOLFSSL_SUCCESS) {
278+
/* Load and verify certificate */
279+
ret = wolfSSL_CertManagerVerifyBuffer(pCm,
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der, derSz, WOLFSSL_FILETYPE_ASN1);
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printf("Verify Google.com cert: %d\n", ret);
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}
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#ifdef HAVE_OCSP
284+
if (ret == WOLFSSL_SUCCESS) {
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/* Check OCSP for certificate */
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ret = wolfSSL_CertManagerCheckOCSP(pCm,
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der, derSz);
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printf("Check OCSP for Google.com (ret %d)\n", ret);
289+
}
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#endif
291+
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wolfSSL_CertManagerFree(pCm);
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}
294+
295+
printf("Ret = %d: %s\n",
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ret, (ret == WOLFSSL_SUCCESS) ?
297+
"success" :
298+
wc_GetErrorString(ret));
299+
300+
return ret;
301+
}

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