Thirdparty: Fill copyright for lws, miniupnpc, clipper

Rename `lws` to `libwebsockets` which is its library name.

Add missing license file for mbedtls.

2 files changed, 828 insertions, 0 deletions

diff --git a/thirdparty/libwebsockets/mbedtls_wrapper/platform/ssl_pm.c b/thirdparty/libwebsockets/mbedtls_wrapper/platform/ssl_pm.c
new file mode 100644
index 0000000000..4e3d611095
--- /dev/null
+++ b/thirdparty/libwebsockets/mbedtls_wrapper/platform/ssl_pm.c
@@ -0,0 +1,799 @@
+// Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
+//
+// 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 "ssl_pm.h"
+#include "ssl_port.h"
+#include "ssl_dbg.h"
+
+/* mbedtls include */
+#include "mbedtls/platform.h"
+#include "mbedtls/net_sockets.h"
+#include "mbedtls/debug.h"
+#include "mbedtls/entropy.h"
+#include "mbedtls/ctr_drbg.h"
+#include "mbedtls/error.h"
+#include "mbedtls/certs.h"
+
+#define X509_INFO_STRING_LENGTH 8192
+
+struct ssl_pm
+{
+    /* local socket file description */
+    mbedtls_net_context fd;
+    /* remote client socket file description */
+    mbedtls_net_context cl_fd;
+
+    mbedtls_ssl_config conf;
+
+    mbedtls_ctr_drbg_context ctr_drbg;
+
+    mbedtls_ssl_context ssl;
+
+    mbedtls_entropy_context entropy;
+};
+
+struct x509_pm
+{
+    mbedtls_x509_crt *x509_crt;
+
+    mbedtls_x509_crt *ex_crt;
+};
+
+struct pkey_pm
+{
+    mbedtls_pk_context *pkey;
+
+    mbedtls_pk_context *ex_pkey;
+};
+
+unsigned int max_content_len;
+
+/*********************************************************************************************/
+/************************************ SSL arch interface *************************************/
+
+#ifdef CONFIG_OPENSSL_LOWLEVEL_DEBUG
+
+/* mbedtls debug level */
+#define MBEDTLS_DEBUG_LEVEL 4
+
+/**
+ * @brief mbedtls debug function
+ */
+static void ssl_platform_debug(void *ctx, int level,
+                     const char *file, int line,
+                     const char *str)
+{
+    /* Shorten 'file' from the whole file path to just the filename
+
+       This is a bit wasteful because the macros are compiled in with
+       the full _FILE_ path in each case.
+    */
+    char *file_sep = rindex(file, '/');
+    if(file_sep)
+        file = file_sep + 1;
+
+    SSL_DEBUG(SSL_DEBUG_ON, "%s:%d %s", file, line, str);
+}
+#endif
+
+/**
+ * @brief create SSL low-level object
+ */
+int ssl_pm_new(SSL *ssl)
+{
+    struct ssl_pm *ssl_pm;
+    int ret;
+
+    const unsigned char pers[] = "OpenSSL PM";
+    size_t pers_len = sizeof(pers);
+
+    int endpoint;
+    int version;
+
+    const SSL_METHOD *method = ssl->method;
+
+    ssl_pm = ssl_mem_zalloc(sizeof(struct ssl_pm));
+    if (!ssl_pm) {
+        SSL_DEBUG(SSL_PLATFORM_ERROR_LEVEL, "no enough memory > (ssl_pm)");
+        goto no_mem;
+    }
+
+    if (!ssl->ctx->read_buffer_len)
+	    ssl->ctx->read_buffer_len = 2048;
+
+    max_content_len = ssl->ctx->read_buffer_len;
+    // printf("ssl->ctx->read_buffer_len = %d ++++++++++++++++++++\n", ssl->ctx->read_buffer_len);
+
+    mbedtls_net_init(&ssl_pm->fd);
+    mbedtls_net_init(&ssl_pm->cl_fd);
+
+    mbedtls_ssl_config_init(&ssl_pm->conf);
+    mbedtls_ctr_drbg_init(&ssl_pm->ctr_drbg);
+    mbedtls_entropy_init(&ssl_pm->entropy);
+    mbedtls_ssl_init(&ssl_pm->ssl);
+
+    ret = mbedtls_ctr_drbg_seed(&ssl_pm->ctr_drbg, mbedtls_entropy_func, &ssl_pm->entropy, pers, pers_len);
+    if (ret) {
+        SSL_DEBUG(SSL_PLATFORM_ERROR_LEVEL, "mbedtls_ctr_drbg_seed() return -0x%x", -ret);
+        goto mbedtls_err1;
+    }
+
+    if (method->endpoint) {
+        endpoint = MBEDTLS_SSL_IS_SERVER;
+    } else {
+        endpoint = MBEDTLS_SSL_IS_CLIENT;
+    }
+    ret = mbedtls_ssl_config_defaults(&ssl_pm->conf, endpoint, MBEDTLS_SSL_TRANSPORT_STREAM, MBEDTLS_SSL_PRESET_DEFAULT);
+    if (ret) {
+        SSL_DEBUG(SSL_PLATFORM_ERROR_LEVEL, "mbedtls_ssl_config_defaults() return -0x%x", -ret);
+        goto mbedtls_err2;
+    }
+
+    if (TLS_ANY_VERSION != ssl->version) {
+        if (TLS1_2_VERSION == ssl->version)
+            version = MBEDTLS_SSL_MINOR_VERSION_3;
+        else if (TLS1_1_VERSION == ssl->version)
+            version = MBEDTLS_SSL_MINOR_VERSION_2;
+        else if (TLS1_VERSION == ssl->version)
+            version = MBEDTLS_SSL_MINOR_VERSION_1;
+        else
+            version = MBEDTLS_SSL_MINOR_VERSION_0;
+
+        mbedtls_ssl_conf_max_version(&ssl_pm->conf, MBEDTLS_SSL_MAJOR_VERSION_3, version);
+        mbedtls_ssl_conf_min_version(&ssl_pm->conf, MBEDTLS_SSL_MAJOR_VERSION_3, version);
+    } else {
+        mbedtls_ssl_conf_max_version(&ssl_pm->conf, MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3);
+        mbedtls_ssl_conf_min_version(&ssl_pm->conf, MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0);
+    }
+
+    mbedtls_ssl_conf_rng(&ssl_pm->conf, mbedtls_ctr_drbg_random, &ssl_pm->ctr_drbg);
+
+#ifdef CONFIG_OPENSSL_LOWLEVEL_DEBUG
+    mbedtls_debug_set_threshold(MBEDTLS_DEBUG_LEVEL);
+    mbedtls_ssl_conf_dbg(&ssl_pm->conf, ssl_platform_debug, NULL);
+#else
+    mbedtls_ssl_conf_dbg(&ssl_pm->conf, NULL, NULL);
+#endif
+
+    ret = mbedtls_ssl_setup(&ssl_pm->ssl, &ssl_pm->conf);
+    if (ret) {
+        SSL_DEBUG(SSL_PLATFORM_ERROR_LEVEL, "mbedtls_ssl_setup() return -0x%x", -ret);
+        goto mbedtls_err2;
+    }
+
+    mbedtls_ssl_set_bio(&ssl_pm->ssl, &ssl_pm->fd, mbedtls_net_send, mbedtls_net_recv, NULL);
+
+    ssl->ssl_pm = ssl_pm;
+
+    return 0;
+
+mbedtls_err2:
+    mbedtls_ssl_config_free(&ssl_pm->conf);
+    mbedtls_ctr_drbg_free(&ssl_pm->ctr_drbg);
+mbedtls_err1:
+    mbedtls_entropy_free(&ssl_pm->entropy);
+    ssl_mem_free(ssl_pm);
+no_mem:
+    return -1;
+}
+
+/**
+ * @brief free SSL low-level object
+ */
+void ssl_pm_free(SSL *ssl)
+{
+    struct ssl_pm *ssl_pm = (struct ssl_pm *)ssl->ssl_pm;
+
+    mbedtls_ctr_drbg_free(&ssl_pm->ctr_drbg);
+    mbedtls_entropy_free(&ssl_pm->entropy);
+    mbedtls_ssl_config_free(&ssl_pm->conf);
+    mbedtls_ssl_free(&ssl_pm->ssl);
+
+    ssl_mem_free(ssl_pm);
+    ssl->ssl_pm = NULL;
+}
+
+/**
+ * @brief reload SSL low-level certification object
+ */
+static int ssl_pm_reload_crt(SSL *ssl)
+{
+    int ret;
+    int mode;
+    struct ssl_pm *ssl_pm = ssl->ssl_pm;
+    struct x509_pm *ca_pm = (struct x509_pm *)ssl->client_CA->x509_pm;
+
+    struct pkey_pm *pkey_pm = (struct pkey_pm *)ssl->cert->pkey->pkey_pm;
+    struct x509_pm *crt_pm = (struct x509_pm *)ssl->cert->x509->x509_pm;
+
+    if (ssl->verify_mode == SSL_VERIFY_PEER)
+        mode = MBEDTLS_SSL_VERIFY_OPTIONAL;
+    else if (ssl->verify_mode == SSL_VERIFY_FAIL_IF_NO_PEER_CERT)
+        mode = MBEDTLS_SSL_VERIFY_OPTIONAL;
+    else if (ssl->verify_mode == SSL_VERIFY_CLIENT_ONCE)
+        mode = MBEDTLS_SSL_VERIFY_UNSET;
+    else
+        mode = MBEDTLS_SSL_VERIFY_NONE;
+
+    mbedtls_ssl_conf_authmode(&ssl_pm->conf, mode);
+
+    if (ca_pm->x509_crt) {
+        mbedtls_ssl_conf_ca_chain(&ssl_pm->conf, ca_pm->x509_crt, NULL);
+    } else if (ca_pm->ex_crt) {
+        mbedtls_ssl_conf_ca_chain(&ssl_pm->conf, ca_pm->ex_crt, NULL);
+    }
+
+    if (crt_pm->x509_crt && pkey_pm->pkey) {
+        ret = mbedtls_ssl_conf_own_cert(&ssl_pm->conf, crt_pm->x509_crt, pkey_pm->pkey);
+    } else if (crt_pm->ex_crt && pkey_pm->ex_pkey) {
+        ret = mbedtls_ssl_conf_own_cert(&ssl_pm->conf, crt_pm->ex_crt, pkey_pm->ex_pkey);
+    } else {
+        ret = 0;
+    }
+
+    if (ret) {
+        SSL_DEBUG(SSL_PLATFORM_ERROR_LEVEL, "mbedtls_ssl_conf_own_cert() return -0x%x", -ret);
+        ret = -1;
+    }
+
+    return ret;
+}
+
+/*
+ * Perform the mbedtls SSL handshake instead of mbedtls_ssl_handshake.
+ * We can add debug here.
+ */
+static int mbedtls_handshake( mbedtls_ssl_context *ssl )
+{
+    int ret = 0;
+
+    while (ssl->state != MBEDTLS_SSL_HANDSHAKE_OVER) {
+        ret = mbedtls_ssl_handshake_step(ssl);
+
+        SSL_DEBUG(SSL_PLATFORM_DEBUG_LEVEL, "ssl ret %d state %d", ret, ssl->state);
+
+        if (ret != 0)
+            break;
+    }
+
+    return ret;
+}
+
+int ssl_pm_handshake(SSL *ssl)
+{
+    int ret;
+    struct ssl_pm *ssl_pm = (struct ssl_pm *)ssl->ssl_pm;
+
+    ret = ssl_pm_reload_crt(ssl);
+    if (ret)
+        return 0;
+
+    if (ssl_pm->ssl.state != MBEDTLS_SSL_HANDSHAKE_OVER) {
+	    ssl_speed_up_enter();
+
+	   /* mbedtls return codes
+	    * 0 = successful, or MBEDTLS_ERR_SSL_WANT_READ/WRITE
+	    * anything else = death
+	    */
+	    ret = mbedtls_handshake(&ssl_pm->ssl);
+	    ssl_speed_up_exit();
+    } else
+	    ret = 0;
+
+    /*
+     * OpenSSL return codes:
+     *   0 = did not complete, but may be retried
+     *   1 = successfully completed
+     *   <0 = death
+     */
+    if (ret == MBEDTLS_ERR_SSL_WANT_READ || ret == MBEDTLS_ERR_SSL_WANT_WRITE) {
+        SSL_DEBUG(SSL_PLATFORM_ERROR_LEVEL, "mbedtls_ssl_handshake() return -0x%x", -ret);
+        return 0; /* OpenSSL: did not complete but may be retried */
+    }
+
+    if (ret == 0) { /* successful */
+        struct x509_pm *x509_pm = (struct x509_pm *)ssl->session->peer->x509_pm;
+
+        x509_pm->ex_crt = (mbedtls_x509_crt *)mbedtls_ssl_get_peer_cert(&ssl_pm->ssl);
+        return 1; /* openssl successful */
+    }
+
+    /* it's had it */
+
+    ssl->err = SSL_ERROR_SYSCALL;
+
+    return -1; /* openssl death */
+}
+
+int ssl_pm_shutdown(SSL *ssl)
+{
+    int ret;
+    struct ssl_pm *ssl_pm = (struct ssl_pm *)ssl->ssl_pm;
+
+    ret = mbedtls_ssl_close_notify(&ssl_pm->ssl);
+    if (ret) {
+        SSL_DEBUG(SSL_PLATFORM_ERROR_LEVEL, "mbedtls_ssl_close_notify() return -0x%x", -ret);
+        if (ret == MBEDTLS_ERR_NET_CONN_RESET)
+		ssl->err = SSL_ERROR_SYSCALL;
+	 ret = -1; /* OpenSSL: "Call SSL_get_error with the return value to find the reason */
+    } else {
+        struct x509_pm *x509_pm = (struct x509_pm *)ssl->session->peer->x509_pm;
+
+        x509_pm->ex_crt = NULL;
+        ret = 1; /* OpenSSL: "The shutdown was successfully completed"
+		     ...0 means retry */
+    }
+
+    return ret;
+}
+
+int ssl_pm_clear(SSL *ssl)
+{
+    return ssl_pm_shutdown(ssl);
+}
+
+
+int ssl_pm_read(SSL *ssl, void *buffer, int len)
+{
+    int ret;
+    struct ssl_pm *ssl_pm = (struct ssl_pm *)ssl->ssl_pm;
+
+    ret = mbedtls_ssl_read(&ssl_pm->ssl, buffer, len);
+    if (ret < 0) {
+        SSL_DEBUG(SSL_PLATFORM_ERROR_LEVEL, "mbedtls_ssl_read() return -0x%x", -ret);
+        if (ret == MBEDTLS_ERR_NET_CONN_RESET)
+		ssl->err = SSL_ERROR_SYSCALL;
+        ret = -1;
+    }
+
+    return ret;
+}
+
+/*
+ * This returns -1, or the length sent.
+ * If -1, then you need to find out if the error was
+ * fatal or recoverable using SSL_get_error()
+ */
+int ssl_pm_send(SSL *ssl, const void *buffer, int len)
+{
+    int ret;
+    struct ssl_pm *ssl_pm = (struct ssl_pm *)ssl->ssl_pm;
+
+    ret = mbedtls_ssl_write(&ssl_pm->ssl, buffer, len);
+    /*
+     * We can get a positive number, which may be less than len... that
+     * much was sent successfully and you can call again to send more.
+     *
+     * We can get a negative mbedtls error code... if WANT_WRITE or WANT_READ,
+     * it's nonfatal and means it should be retried as-is.  If something else,
+     * it's fatal actually.
+     *
+     * If this function returns something other than a positive value or
+     * MBEDTLS_ERR_SSL_WANT_READ/WRITE, the ssl context becomes unusable, and
+     * you should either free it or call mbedtls_ssl_session_reset() on it
+     * before re-using it for a new connection; the current connection must
+     * be closed.
+     *
+     * When this function returns MBEDTLS_ERR_SSL_WANT_WRITE/READ, it must be
+     * called later with the same arguments, until it returns a positive value.
+     */
+
+    if (ret < 0) {
+	    SSL_DEBUG(SSL_PLATFORM_ERROR_LEVEL, "mbedtls_ssl_write() return -0x%x", -ret);
+	switch (ret) {
+	case MBEDTLS_ERR_NET_CONN_RESET:
+		ssl->err = SSL_ERROR_SYSCALL;
+		break;
+	case MBEDTLS_ERR_SSL_WANT_WRITE:
+		ssl->err = SSL_ERROR_WANT_WRITE;
+		break;
+	case MBEDTLS_ERR_SSL_WANT_READ:
+		ssl->err = SSL_ERROR_WANT_READ;
+		break;
+	default:
+		break;
+	}
+
+	ret = -1;
+    }
+
+    return ret;
+}
+
+int ssl_pm_pending(const SSL *ssl)
+{
+    struct ssl_pm *ssl_pm = (struct ssl_pm *)ssl->ssl_pm;
+
+    return mbedtls_ssl_get_bytes_avail(&ssl_pm->ssl);
+}
+
+void ssl_pm_set_fd(SSL *ssl, int fd, int mode)
+{
+    struct ssl_pm *ssl_pm = (struct ssl_pm *)ssl->ssl_pm;
+
+    ssl_pm->fd.fd = fd;
+}
+
+int ssl_pm_get_fd(const SSL *ssl, int mode)
+{
+    struct ssl_pm *ssl_pm = (struct ssl_pm *)ssl->ssl_pm;
+
+    return ssl_pm->fd.fd;
+}
+
+OSSL_HANDSHAKE_STATE ssl_pm_get_state(const SSL *ssl)
+{
+    OSSL_HANDSHAKE_STATE state;
+
+    struct ssl_pm *ssl_pm = (struct ssl_pm *)ssl->ssl_pm;
+
+    switch (ssl_pm->ssl.state)
+    {
+        case MBEDTLS_SSL_CLIENT_HELLO:
+            state = TLS_ST_CW_CLNT_HELLO;
+            break;
+        case MBEDTLS_SSL_SERVER_HELLO:
+            state = TLS_ST_SW_SRVR_HELLO;
+            break;
+        case MBEDTLS_SSL_SERVER_CERTIFICATE:
+            state = TLS_ST_SW_CERT;
+            break;
+        case MBEDTLS_SSL_SERVER_HELLO_DONE:
+            state = TLS_ST_SW_SRVR_DONE;
+            break;
+        case MBEDTLS_SSL_CLIENT_KEY_EXCHANGE:
+            state = TLS_ST_CW_KEY_EXCH;
+            break;
+        case MBEDTLS_SSL_CLIENT_CHANGE_CIPHER_SPEC:
+            state = TLS_ST_CW_CHANGE;
+            break;
+        case MBEDTLS_SSL_CLIENT_FINISHED:
+            state = TLS_ST_CW_FINISHED;
+            break;
+        case MBEDTLS_SSL_SERVER_CHANGE_CIPHER_SPEC:
+            state = TLS_ST_SW_CHANGE;
+            break;
+        case MBEDTLS_SSL_SERVER_FINISHED:
+            state = TLS_ST_SW_FINISHED;
+            break;
+        case MBEDTLS_SSL_CLIENT_CERTIFICATE:
+            state = TLS_ST_CW_CERT;
+            break;
+        case MBEDTLS_SSL_SERVER_KEY_EXCHANGE:
+            state = TLS_ST_SR_KEY_EXCH;
+            break;
+        case MBEDTLS_SSL_SERVER_NEW_SESSION_TICKET:
+            state = TLS_ST_SW_SESSION_TICKET;
+            break;
+        case MBEDTLS_SSL_SERVER_HELLO_VERIFY_REQUEST_SENT:
+            state = TLS_ST_SW_CERT_REQ;
+            break;
+        case MBEDTLS_SSL_HANDSHAKE_OVER:
+            state = TLS_ST_OK;
+            break;
+        default :
+            state = TLS_ST_BEFORE;
+            break;
+    }
+
+    return state;
+}
+
+int x509_pm_show_info(X509 *x)
+{
+    int ret;
+    char *buf;
+    mbedtls_x509_crt *x509_crt;
+    struct x509_pm *x509_pm = x->x509_pm;
+
+    if (x509_pm->x509_crt)
+        x509_crt = x509_pm->x509_crt;
+    else if (x509_pm->ex_crt)
+        x509_crt = x509_pm->ex_crt;
+    else
+        x509_crt = NULL;
+
+    if (!x509_crt)
+        return -1;
+
+    buf = ssl_mem_malloc(X509_INFO_STRING_LENGTH);
+    if (!buf) {
+        SSL_DEBUG(SSL_PLATFORM_ERROR_LEVEL, "no enough memory > (buf)");
+        goto no_mem;
+    }
+
+    ret = mbedtls_x509_crt_info(buf, X509_INFO_STRING_LENGTH - 1, "", x509_crt);
+    if (ret <= 0) {
+        SSL_DEBUG(SSL_PLATFORM_ERROR_LEVEL, "mbedtls_x509_crt_info() return -0x%x", -ret);
+        goto mbedtls_err1;
+    }
+
+    buf[ret] = 0;
+
+    ssl_mem_free(buf);
+
+    SSL_DEBUG(SSL_DEBUG_ON, "%s", buf);
+
+    return 0;
+
+mbedtls_err1:
+    ssl_mem_free(buf);
+no_mem:
+    return -1;
+}
+
+int x509_pm_new(X509 *x, X509 *m_x)
+{
+    struct x509_pm *x509_pm;
+
+    x509_pm = ssl_mem_zalloc(sizeof(struct x509_pm));
+    if (!x509_pm) {
+        SSL_DEBUG(SSL_PLATFORM_ERROR_LEVEL, "no enough memory > (x509_pm)");
+        goto failed1;
+    }
+
+    x->x509_pm = x509_pm;
+
+    if (m_x) {
+        struct x509_pm *m_x509_pm = (struct x509_pm *)m_x->x509_pm;
+
+        x509_pm->ex_crt = m_x509_pm->x509_crt;
+    }
+
+    return 0;
+
+failed1:
+    return -1;
+}
+
+void x509_pm_free(X509 *x)
+{
+    struct x509_pm *x509_pm = (struct x509_pm *)x->x509_pm;
+
+    if (x509_pm->x509_crt) {
+        mbedtls_x509_crt_free(x509_pm->x509_crt);
+
+        ssl_mem_free(x509_pm->x509_crt);
+        x509_pm->x509_crt = NULL;
+    }
+
+    ssl_mem_free(x->x509_pm);
+    x->x509_pm = NULL;
+}
+
+int x509_pm_load(X509 *x, const unsigned char *buffer, int len)
+{
+    int ret;
+    unsigned char *load_buf;
+    struct x509_pm *x509_pm = (struct x509_pm *)x->x509_pm;
+
+	if (x509_pm->x509_crt)
+        mbedtls_x509_crt_free(x509_pm->x509_crt);
+
+    if (!x509_pm->x509_crt) {
+        x509_pm->x509_crt = ssl_mem_malloc(sizeof(mbedtls_x509_crt));
+        if (!x509_pm->x509_crt) {
+            SSL_DEBUG(SSL_PLATFORM_ERROR_LEVEL, "no enough memory > (x509_pm->x509_crt)");
+            goto no_mem;
+        }
+    }
+
+    load_buf = ssl_mem_malloc(len + 1);
+    if (!load_buf) {
+        SSL_DEBUG(SSL_PLATFORM_ERROR_LEVEL, "no enough memory > (load_buf)");
+        goto failed;
+    }
+
+    ssl_memcpy(load_buf, buffer, len);
+    load_buf[len] = '\0';
+
+    mbedtls_x509_crt_init(x509_pm->x509_crt);
+
+    ret = mbedtls_x509_crt_parse(x509_pm->x509_crt, load_buf, len + 1);
+    ssl_mem_free(load_buf);
+
+    if (ret) {
+        SSL_DEBUG(SSL_PLATFORM_ERROR_LEVEL, "mbedtls_x509_crt_parse return -0x%x", -ret);
+        goto failed;
+    }
+
+    return 0;
+
+failed:
+    mbedtls_x509_crt_free(x509_pm->x509_crt);
+    ssl_mem_free(x509_pm->x509_crt);
+    x509_pm->x509_crt = NULL;
+no_mem:
+    return -1;
+}
+
+int pkey_pm_new(EVP_PKEY *pk, EVP_PKEY *m_pkey)
+{
+    struct pkey_pm *pkey_pm;
+
+    pkey_pm = ssl_mem_zalloc(sizeof(struct pkey_pm));
+    if (!pkey_pm)
+        return -1;
+
+    pk->pkey_pm = pkey_pm;
+
+    if (m_pkey) {
+        struct pkey_pm *m_pkey_pm = (struct pkey_pm *)m_pkey->pkey_pm;
+
+        pkey_pm->ex_pkey = m_pkey_pm->pkey;
+    }
+
+    return 0;
+}
+
+void pkey_pm_free(EVP_PKEY *pk)
+{
+    struct pkey_pm *pkey_pm = (struct pkey_pm *)pk->pkey_pm;
+
+    if (pkey_pm->pkey) {
+        mbedtls_pk_free(pkey_pm->pkey);
+
+        ssl_mem_free(pkey_pm->pkey);
+        pkey_pm->pkey = NULL;
+    }
+
+    ssl_mem_free(pk->pkey_pm);
+    pk->pkey_pm = NULL;
+}
+
+int pkey_pm_load(EVP_PKEY *pk, const unsigned char *buffer, int len)
+{
+    int ret;
+    unsigned char *load_buf;
+    struct pkey_pm *pkey_pm = (struct pkey_pm *)pk->pkey_pm;
+
+    if (pkey_pm->pkey)
+        mbedtls_pk_free(pkey_pm->pkey);
+
+    if (!pkey_pm->pkey) {
+        pkey_pm->pkey = ssl_mem_malloc(sizeof(mbedtls_pk_context));
+        if (!pkey_pm->pkey) {
+            SSL_DEBUG(SSL_PLATFORM_ERROR_LEVEL, "no enough memory > (pkey_pm->pkey)");
+            goto no_mem;
+        }
+    }
+
+    load_buf = ssl_mem_malloc(len + 1);
+    if (!load_buf) {
+        SSL_DEBUG(SSL_PLATFORM_ERROR_LEVEL, "no enough memory > (load_buf)");
+        goto failed;
+    }
+
+    ssl_memcpy(load_buf, buffer, len);
+    load_buf[len] = '\0';
+
+    mbedtls_pk_init(pkey_pm->pkey);
+
+    ret = mbedtls_pk_parse_key(pkey_pm->pkey, load_buf, len + 1, NULL, 0);
+    ssl_mem_free(load_buf);
+
+    if (ret) {
+        SSL_DEBUG(SSL_PLATFORM_ERROR_LEVEL, "mbedtls_pk_parse_key return -0x%x", -ret);
+        goto failed;
+    }
+
+    return 0;
+
+failed:
+    mbedtls_pk_free(pkey_pm->pkey);
+    ssl_mem_free(pkey_pm->pkey);
+    pkey_pm->pkey = NULL;
+no_mem:
+    return -1;
+}
+
+
+
+void ssl_pm_set_bufflen(SSL *ssl, int len)
+{
+    max_content_len = len;
+}
+
+long ssl_pm_get_verify_result(const SSL *ssl)
+{
+    uint32_t ret;
+    long verify_result;
+    struct ssl_pm *ssl_pm = (struct ssl_pm *)ssl->ssl_pm;
+
+    ret = mbedtls_ssl_get_verify_result(&ssl_pm->ssl);
+
+    if (!ret)
+            return X509_V_OK;
+
+    if (ret & MBEDTLS_X509_BADCERT_NOT_TRUSTED ||
+        (ret & MBEDTLS_X509_BADCRL_NOT_TRUSTED))
+        // Allows us to use LCCSCF_ALLOW_SELFSIGNED to skip verification
+        verify_result = X509_V_ERR_SELF_SIGNED_CERT_IN_CHAIN;
+
+    else if (ret & MBEDTLS_X509_BADCERT_CN_MISMATCH)
+        verify_result = X509_V_ERR_HOSTNAME_MISMATCH;
+
+    else if ((ret & MBEDTLS_X509_BADCERT_BAD_KEY) ||
+        (ret & MBEDTLS_X509_BADCRL_BAD_KEY))
+        verify_result = X509_V_ERR_CA_KEY_TOO_SMALL;
+
+    else if ((ret & MBEDTLS_X509_BADCERT_BAD_MD) ||
+        (ret & MBEDTLS_X509_BADCRL_BAD_MD))
+        verify_result = X509_V_ERR_CA_MD_TOO_WEAK;
+
+    else if ((ret & MBEDTLS_X509_BADCERT_FUTURE) ||
+        (ret & MBEDTLS_X509_BADCRL_FUTURE))
+        verify_result = X509_V_ERR_CERT_NOT_YET_VALID;
+
+    else if ((ret & MBEDTLS_X509_BADCERT_EXPIRED) ||
+        (ret & MBEDTLS_X509_BADCRL_EXPIRED))
+        verify_result = X509_V_ERR_CERT_HAS_EXPIRED;
+
+    else
+        verify_result = X509_V_ERR_UNSPECIFIED;
+
+    SSL_DEBUG(SSL_PLATFORM_ERROR_LEVEL,
+              "mbedtls_ssl_get_verify_result() return 0x%x", ret);
+
+    return verify_result;
+}
+
+/**
+ * @brief set expected hostname on peer cert CN
+ */
+
+int X509_VERIFY_PARAM_set1_host(X509_VERIFY_PARAM *param,
+                                const char *name, size_t namelen)
+{
+	SSL *ssl = (SSL *)((char *)param - offsetof(SSL, param));
+	struct ssl_pm *ssl_pm = (struct ssl_pm *)ssl->ssl_pm;
+	char *name_cstr = NULL;
+
+	if (namelen) {
+		name_cstr = malloc(namelen + 1);
+		if (!name_cstr)
+			return 0;
+		memcpy(name_cstr, name, namelen);
+		name_cstr[namelen] = '\0';
+		name = name_cstr;
+	}
+
+	mbedtls_ssl_set_hostname(&ssl_pm->ssl, name);
+
+	if (namelen)
+		free(name_cstr);
+
+	return 1;
+}
+
+void _ssl_set_alpn_list(const SSL *ssl)
+{
+	if (!ssl->ctx->alpn_protos)
+		return;
+	if (mbedtls_ssl_conf_alpn_protocols(&((struct ssl_pm *)(ssl->ssl_pm))->conf, ssl->ctx->alpn_protos))
+		fprintf(stderr, "mbedtls_ssl_conf_alpn_protocols failed\n");
+}
+
+void SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data,
+                            unsigned int *len)
+{
+	const char *alp = mbedtls_ssl_get_alpn_protocol(&((struct ssl_pm *)(ssl->ssl_pm))->ssl);
+
+	*data = (const unsigned char *)alp;
+	if (alp)
+		*len = strlen(alp);
+	else
+		*len = 0;
+}
+
diff --git a/thirdparty/libwebsockets/mbedtls_wrapper/platform/ssl_port.c b/thirdparty/libwebsockets/mbedtls_wrapper/platform/ssl_port.c
new file mode 100644
index 0000000000..8c7a31338b
--- /dev/null
+++ b/thirdparty/libwebsockets/mbedtls_wrapper/platform/ssl_port.c
@@ -0,0 +1,29 @@
+// Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
+//
+// 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 "ssl_port.h"
+
+/*********************************************************************************************/
+/********************************* SSL general interface *************************************/
+
+void *ssl_mem_zalloc(size_t size)
+{
+    void *p = malloc(size);
+
+    if (p)
+        memset(p, 0, size);
+
+    return p;
+}
+