OVMS3/OVMS.V3/components/wolfssl/swig/wolfssl_adds.c

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/* wolfssl_adds.c
*
* Copyright (C) 2006-2020 wolfSSL Inc.
*
* This file is part of wolfSSL.
*
* wolfSSL is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* wolfSSL is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <wolfssl/wolfcrypt/settings.h>
#ifndef _WIN32
#define HAVE_CONFIG_H
#endif
#include <wolfssl/ssl.h>
#include <wolfssl/wolfcrypt/rsa.h>
#include <wolfssl/wolfcrypt/asn.h>
#include <stdio.h>
#include <stdlib.h>
#include <assert.h>
#include <ctype.h>
#ifdef _WIN32
#include <winsock2.h>
#include <process.h>
#ifdef TEST_IPV6 /* don't require newer SDK for IPV4 */
#include <ws2tcpip.h>
#include <wspiapi.h>
#endif
#define SOCKET_T int
#else
#include <string.h>
#include <unistd.h>
#include <netdb.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <sys/ioctl.h>
#include <sys/time.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <pthread.h>
#ifdef NON_BLOCKING
#include <fcntl.h>
#endif
#ifdef TEST_IPV6
#include <netdb.h>
#endif
#define SOCKET_T unsigned int
#endif /* _WIN32 */
#ifdef _MSC_VER
/* disable conversion warning */
/* 4996 warning to use MS extensions e.g., strcpy_s instead of strncpy */
#pragma warning(disable:4244 4996)
#endif
#if defined(__MACH__) || defined(_WIN32)
#ifndef _SOCKLEN_T
typedef int socklen_t;
#endif
#endif
/* HPUX doesn't use socklent_t for third parameter to accept */
#if !defined(__hpux__)
typedef socklen_t* ACCEPT_THIRD_T;
#else
typedef int* ACCEPT_THIRD_T;
#endif
#ifdef _WIN32
#define CloseSocket(s) closesocket(s)
#define StartTCP() { WSADATA wsd; WSAStartup(0x0002, &wsd); }
#else
#define CloseSocket(s) close(s)
#define StartTCP()
#endif
#ifdef TEST_IPV6
typedef struct sockaddr_in6 SOCKADDR_IN_T;
#define AF_INET_V AF_INET6
#else
typedef struct sockaddr_in SOCKADDR_IN_T;
#define AF_INET_V AF_INET
#endif
enum {
SSL_BLOCKING = 2,
SSL_NONBLOCKING = 4
};
static int tcp_socket(SOCKET_T* sockfd, SOCKADDR_IN_T* addr, const char* peer,
short port)
{
const char* host = peer;
/* peer could be in human readable form */
if (isalpha(peer[0])) {
struct hostent* entry = gethostbyname(peer);
if (entry) {
struct sockaddr_in tmp;
memset(&tmp, 0, sizeof(struct sockaddr_in));
memcpy(&tmp.sin_addr.s_addr, entry->h_addr_list[0],entry->h_length);
host = inet_ntoa(tmp.sin_addr);
}
else
return -1; /* no entry for host */
}
*sockfd = socket(AF_INET, SOCK_STREAM, 0);
memset(addr, 0, sizeof(SOCKADDR_IN_T));
addr->sin_family = AF_INET;
addr->sin_port = htons(port);
addr->sin_addr.s_addr = inet_addr(host);
#ifdef SO_NOSIGPIPE
{
int on = 1;
socklen_t len = sizeof(on);
setsockopt(*sockfd, SOL_SOCKET, SO_NOSIGPIPE, &on, len);
}
#endif
return 0;
}
static int tcp_connect(SOCKET_T* sockfd, const char* ip, short port)
{
SOCKADDR_IN_T addr;
int ret = tcp_socket(sockfd, &addr, ip, port);
if (ret != 0) return ret;
if (connect(*sockfd, (const struct sockaddr*)&addr, sizeof(addr)) != 0)
return -2; /* can't connect */
return 0;
}
int wolfSSL_swig_connect(WOLFSSL* ssl, const char* server, int port)
{
SOCKET_T sockfd;
int ret = tcp_connect(&sockfd, server, port);
if (ret != 0) return ret;
ret = wolfSSL_set_fd(ssl, sockfd);
if (ret != SSL_SUCCESS) return ret;
return wolfSSL_connect(ssl);
}
char* wolfSSL_error_string(int err)
{
static char buffer[WOLFSSL_MAX_ERROR_SZ];
return wolfSSL_ERR_error_string(err, buffer);
}
WC_RNG* GetRng(void)
{
WC_RNG* rng = (WC_RNG*)malloc(sizeof(WC_RNG));
if (rng)
if (wc_InitRng(rng) != 0) {
free(rng);
rng = 0;
}
return rng;
}
RsaKey* GetRsaPrivateKey(const char* keyFile)
{
RsaKey* key = (RsaKey*)malloc(sizeof(RsaKey));
if (key) {
byte tmp[1024];
size_t bytes;
int ret;
word32 idx = 0;
XFILE file = XFOPEN(keyFile, "rb");
if (file == XBADFILE)
{
free(key);
return 0;
}
bytes = XFREAD(tmp, 1, sizeof(tmp), file);
XFCLOSE(file);
wc_InitRsaKey(key, 0);
ret = wc_RsaPrivateKeyDecode(tmp, &idx, key, (word32)bytes);
if (ret != 0) {
wc_FreeRsaKey(key);
free(key);
return 0;
}
}
return key;
}
void FillSignStr(unsigned char* dst, const char* src, int size)
{
memcpy(dst, src, size);
}