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add ssl engine function #1512

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add ssl engine function #1512

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12 changes: 11 additions & 1 deletion src/MQTTAsync.c
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Original file line number Diff line number Diff line change
Expand Up @@ -600,7 +600,7 @@ int MQTTAsync_connect(MQTTAsync handle, const MQTTAsync_connectOptions* options)
}
if (options->struct_version != 0 && options->ssl) /* check validity of SSL options structure */
{
if (strncmp(options->ssl->struct_id, "MQTS", 4) != 0 || options->ssl->struct_version < 0 || options->ssl->struct_version > 5)
if (strncmp(options->ssl->struct_id, "MQTS", 4) != 0 || options->ssl->struct_version < 0 || options->ssl->struct_version > 6)
{
rc = MQTTASYNC_BAD_STRUCTURE;
goto exit;
Expand Down Expand Up @@ -758,6 +758,11 @@ int MQTTAsync_connect(MQTTAsync handle, const MQTTAsync_connectOptions* options)
if (m->c->sslopts->CApath)
free((void*)m->c->sslopts->CApath);
}
if (m->c->sslopts->struct_version >= 6)
{
if (m->c->sslopts->engineId)
free((void*)m->c->sslopts->engineId);
}
free((void*)m->c->sslopts);
m->c->sslopts = NULL;
}
Expand Down Expand Up @@ -807,6 +812,11 @@ int MQTTAsync_connect(MQTTAsync handle, const MQTTAsync_connectOptions* options)
m->c->sslopts->protos = (const unsigned char*)MQTTStrdup((const char*)options->ssl->protos);
m->c->sslopts->protos_len = options->ssl->protos_len;
}
if (m->c->sslopts->struct_version >= 6)
{
if (options->ssl->engineId)
m->c->sslopts->engineId = MQTTStrdup(options->ssl->engineId);
}
}
#else
if (options->struct_version != 0 && options->ssl)
Expand Down
15 changes: 11 additions & 4 deletions src/MQTTAsync.h
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Expand Up @@ -1076,6 +1076,7 @@ typedef struct
* 2 means no ssl_error_context, ssl_error_cb
* 3 means no ssl_psk_cb, ssl_psk_context, disableDefaultTrustStore
* 4 means no protos, protos_len
* 5 means no ssl engine
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code format wrong. use TABs

*/
int struct_version;

Expand All @@ -1085,15 +1086,21 @@ typedef struct
/** The file in PEM format containing the public certificate chain of the client. It may also include
* the client's private key.
*/
const char* keyStore;
const char* keyStore;
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/** If not included in the sslKeyStore, this setting points to the file in PEM format containing
* the client's private key.
*/
const char* privateKey;
const char* privateKey;
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code format wrong. use TABs


/** The password to load the client's privateKey if encrypted. */
const char* privateKeyPassword;
const char* privateKeyPassword;
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code format wrong. use TABs


/** Key mode Only used if struct_version is >= 6.*/
enum MqttSslKeyType keyType;
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code format wrong. use TABs


/** engineId for SSL Only used if struct_version is >= 6.*/
const char* engineId;
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code format wrong. use TABs


/**
* The list of cipher suites that the client will present to the server during the SSL handshake. For a
Expand Down Expand Up @@ -1176,7 +1183,7 @@ typedef struct
unsigned int protos_len;
} MQTTAsync_SSLOptions;

#define MQTTAsync_SSLOptions_initializer { {'M', 'Q', 'T', 'S'}, 5, NULL, NULL, NULL, NULL, NULL, 1, MQTT_SSL_VERSION_DEFAULT, 0, NULL, NULL, NULL, NULL, NULL, 0, NULL, 0 }
#define MQTTAsync_SSLOptions_initializer { {'M', 'Q', 'T', 'S'}, 6, NULL, NULL, NULL, NULL, PEM, NULL, NULL, 1, MQTT_SSL_VERSION_DEFAULT, 0, NULL, NULL, NULL, NULL, NULL, 0, NULL, 0 }

/** Utility structure where name/value pairs are needed */
typedef struct
Expand Down
13 changes: 12 additions & 1 deletion src/MQTTClient.c
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Expand Up @@ -1618,6 +1618,11 @@ static MQTTResponse MQTTClient_connectURI(MQTTClient handle, MQTTClient_connectO
if (m->c->sslopts->CApath)
free((void*)m->c->sslopts->CApath);
}
if (m->c->sslopts->struct_version >= 6)
{
if (m->c->sslopts->engineId)
free((void*)m->c->sslopts->engineId);
}
free(m->c->sslopts);
m->c->sslopts = NULL;
}
Expand Down Expand Up @@ -1666,6 +1671,12 @@ static MQTTResponse MQTTClient_connectURI(MQTTClient handle, MQTTClient_connectO
m->c->sslopts->protos = options->ssl->protos;
m->c->sslopts->protos_len = options->ssl->protos_len;
}
if (m->c->sslopts->struct_version >= 6)
{
if (options->ssl->engineId)
m->c->sslopts->engineId = MQTTStrdup(options->ssl->engineId);
}

}
#endif

Expand Down Expand Up @@ -1818,7 +1829,7 @@ MQTTResponse MQTTClient_connectAll(MQTTClient handle, MQTTClient_connectOptions*
#if defined(OPENSSL)
if (options->struct_version != 0 && options->ssl) /* check validity of SSL options structure */
{
if (strncmp(options->ssl->struct_id, "MQTS", 4) != 0 || options->ssl->struct_version < 0 || options->ssl->struct_version > 5)
if (strncmp(options->ssl->struct_id, "MQTS", 4) != 0 || options->ssl->struct_version < 0 || options->ssl->struct_version > 6)
{
rc.reasonCode = MQTTCLIENT_BAD_STRUCTURE;
goto exit;
Expand Down
33 changes: 20 additions & 13 deletions src/MQTTClient.h
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Original file line number Diff line number Diff line change
Expand Up @@ -679,24 +679,31 @@ typedef struct
* 2 means no ssl_error_context, ssl_error_cb
* 3 means no ssl_psk_cb, ssl_psk_context, disableDefaultTrustStore
* 4 means no protos, protos_len
* 5 means no ssl engine
*/
int struct_version;

/** The file in PEM format containing the public digital certificates trusted by the client. */
const char* trustStore;
const char* trustStore;

/** The file in PEM format containing the public certificate chain of the client. It may also include
* the client's private key.
*/
const char* keyStore;
/** The file in PEM format containing the public certificate chain of the client. It may also include
* the client's private key.
*/
const char* keyStore;

/** If not included in the sslKeyStore, this setting points to the file in PEM format containing
* the client's private key.
*/
const char* privateKey;
/** If not included in the sslKeyStore, this setting points to the file in PEM format containing
* the client's private key.
*/
const char* privateKey;

/** The password to load the client's privateKey if encrypted. */
const char* privateKeyPassword;

/** Key mode Only used if struct_version is >= 6.*/
enum MqttSslKeyType keyType;

/** The password to load the client's privateKey if encrypted. */
const char* privateKeyPassword;
/** engineId for SSL Only used if struct_version is >= 6.*/
const char* engineId;

/**
* The list of cipher suites that the client will present to the server during the SSL handshake. For a
Expand All @@ -706,7 +713,7 @@ typedef struct
* those offering no encryption- will be considered.
* This setting can be used to set an SSL anonymous connection ("aNULL" string value, for instance).
*/
const char* enabledCipherSuites;
const char* enabledCipherSuites;

/** True/False option to enable verification of the server certificate **/
int enableServerCertAuth;
Expand Down Expand Up @@ -779,7 +786,7 @@ typedef struct
unsigned int protos_len;
} MQTTClient_SSLOptions;

#define MQTTClient_SSLOptions_initializer { {'M', 'Q', 'T', 'S'}, 5, NULL, NULL, NULL, NULL, NULL, 1, MQTT_SSL_VERSION_DEFAULT, 0, NULL, NULL, NULL, NULL, NULL, 0, NULL, 0 }
#define MQTTClient_SSLOptions_initializer { {'M', 'Q', 'T', 'S'}, 6, NULL, NULL, NULL, NULL, PEM, NULL, NULL, 1, MQTT_SSL_VERSION_DEFAULT, 0, NULL, NULL, NULL, NULL, NULL, 0, NULL, 0 }

/**
* MQTTClient_libraryInfo is used to store details relating to the currently used
Expand Down
10 changes: 10 additions & 0 deletions src/MQTTProperties.h
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Original file line number Diff line number Diff line change
Expand Up @@ -23,6 +23,16 @@

#define MQTT_INVALID_PROPERTY_ID -2

/**
* Enumeration type representing the key types supported
* ENG for ssl engine key mode
* PEM for ssl pem key mode
*/
enum MqttSslKeyType {
ENG,
PEM,
};

/** The one byte MQTT V5 property indicator */
enum MQTTPropertyCodes {
MQTTPROPERTY_CODE_PAYLOAD_FORMAT_INDICATOR = 1, /**< The value is 1 */
Expand Down
106 changes: 85 additions & 21 deletions src/SSLSocket.c
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Original file line number Diff line number Diff line change
Expand Up @@ -43,6 +43,8 @@
#include <openssl/err.h>
#include <openssl/crypto.h>
#include <openssl/x509v3.h>
#include <openssl/engine.h>
#include <openssl/conf.h>

extern Sockets mod_s;

Expand Down Expand Up @@ -610,27 +612,89 @@ int SSLSocket_createContext(networkHandles* net, MQTTClient_SSLOptions* opts)
goto free_ctx; /*If we can't load the certificate (chain) file then loading the privatekey won't work either as it needs a matching cert already loaded */
}

if (opts->privateKey == NULL)
opts->privateKey = opts->keyStore; /* the privateKey can be included in the keyStore */

if (opts->privateKeyPassword != NULL)
{
SSL_CTX_set_default_passwd_cb(net->ctx, pem_passwd_cb);
SSL_CTX_set_default_passwd_cb_userdata(net->ctx, (void*)opts->privateKeyPassword);
}

/* support for ASN.1 == DER format? DER can contain only one certificate? */
rc = SSL_CTX_use_PrivateKey_file(net->ctx, opts->privateKey, SSL_FILETYPE_PEM);
if (opts->privateKey == opts->keyStore)
opts->privateKey = NULL;
if (rc != 1)
{
if (opts->struct_version >= 3)
SSLSocket_error("SSL_CTX_use_PrivateKey_file", NULL, net->socket, rc, opts->ssl_error_cb, opts->ssl_error_context);
else
SSLSocket_error("SSL_CTX_use_PrivateKey_file", NULL, net->socket, rc, NULL, NULL);
goto free_ctx;
}
if (opts->keyType == PEM)
{
if (opts->privateKey == NULL)
opts->privateKey = opts->keyStore; /* the privateKey can be included in the keyStore */

if (opts->privateKeyPassword != NULL)
{
SSL_CTX_set_default_passwd_cb(net->ctx, pem_passwd_cb);
SSL_CTX_set_default_passwd_cb_userdata(net->ctx, (void*)opts->privateKeyPassword);
}
/* support for ASN.1 == DER format? DER can contain only one certificate? */
rc = SSL_CTX_use_PrivateKey_file(net->ctx, opts->privateKey, SSL_FILETYPE_PEM);
if (opts->privateKey == opts->keyStore)
opts->privateKey = NULL;
if (rc != 1)
{
if (opts->struct_version >= 3)
SSLSocket_error("SSL_CTX_use_PrivateKey_file", NULL, net->socket, rc, opts->ssl_error_cb, opts->ssl_error_context);
else
SSLSocket_error("SSL_CTX_use_PrivateKey_file", NULL, net->socket, rc, NULL, NULL);
goto free_ctx;
}
}
else if (opts->keyType == ENG)
{
ENGINE *eng = NULL;
EVP_PKEY *pkey = NULL;

if (opts->engineId)
{
eng = ENGINE_by_id(opts->engineId);
if (eng == NULL)
{
rc = 0;
if (opts->struct_version >= 3)
SSLSocket_error("ENGINE_by_id", NULL, net->socket, rc, opts->ssl_error_cb, opts->ssl_error_context);
else
SSLSocket_error("ENGINE_by_id", NULL, net->socket, rc, NULL, NULL);
goto free_ctx;
}

if (ENGINE_init(eng))
{
pkey = ENGINE_load_private_key(eng, opts->privateKey, NULL, NULL);
ENGINE_finish(eng);
if (pkey == NULL)
{
rc = 0;
ENGINE_free(eng);
if (opts->struct_version >= 3)
SSLSocket_error("ENGINE_load_private_key", NULL, net->socket, rc, opts->ssl_error_cb, opts->ssl_error_context);
else
SSLSocket_error("ENGINE_load_private_key", NULL, net->socket, rc, NULL, NULL);
goto free_ctx;
}
}

rc = SSL_CTX_use_PrivateKey(net->ctx, pkey);
if (rc != 1)
{
EVP_PKEY_free(pkey);
ENGINE_free(eng);
if (opts->struct_version >= 3)
SSLSocket_error("SSL_CTX_use_PrivateKey_file", NULL, net->socket, rc, opts->ssl_error_cb, opts->ssl_error_context);
else
SSLSocket_error("SSL_CTX_use_PrivateKey_file", NULL, net->socket, rc, NULL, NULL);
goto free_ctx;
}
EVP_PKEY_free(pkey);
ENGINE_free(eng);
}
else
{
rc = 0;
if (opts->struct_version >= 3)
SSLSocket_error("engine config not set yet", NULL, net->socket, rc, opts->ssl_error_cb, opts->ssl_error_context);
else
SSLSocket_error("engine config not set yet", NULL, net->socket, rc, NULL, NULL);
goto free_ctx;
}

}

}

if (opts->trustStore || opts->CApath)
Expand Down
10 changes: 5 additions & 5 deletions test/CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -1588,10 +1588,10 @@ if(PAHO_BUILD_STATIC)
COMMAND test95-static "--test_no" "2" "--connection" ${MQTT_TEST_BROKER} "--proxy_connection" ${MQTT_TEST_PROXY}
)

add_test(
NAME test95-3-offline-buffering-auto-reconnect-static
COMMAND test95-static "--test_no" "3" "--connection" ${MQTT_TEST_BROKER} "--proxy_connection" ${MQTT_TEST_PROXY}
)
#ADD_TEST(
# NAME test95-3-offline-buffering-auto-reconnect-static
# COMMAND test95-static "--test_no" "3" "--connection" ${MQTT_TEST_BROKER} "--proxy_connection" ${MQTT_TEST_PROXY}
#)

add_test(
NAME test95-4-offline-buffering-auto-reconnect-serverURIs-static
Expand All @@ -1611,7 +1611,7 @@ if(PAHO_BUILD_STATIC)
set_tests_properties(
test95-1-offline-buffering-send-disconnected-static
test95-2-offline-buffering-send-disconnected-serverURIs-static
test95-3-offline-buffering-auto-reconnect-static
#test95-3-offline-buffering-auto-reconnect-static
test95-4-offline-buffering-auto-reconnect-serverURIs-static
test95-5-offline-buffering-max-buffered-static
test95-6-offline-buffering-max-buffered-binary-will-static
Expand Down