Alexandre Lision | ddd731e | 2014-01-31 11:50:08 -0500 | [diff] [blame^] | 1 | // Copyright (C) 2010 David Sugar, Tycho Softworks. |
| 2 | // |
| 3 | // This file is part of GNU uCommon C++. |
| 4 | // |
| 5 | // GNU uCommon C++ is free software: you can redistribute it and/or modify |
| 6 | // it under the terms of the GNU Lesser General Public License as published |
| 7 | // by the Free Software Foundation, either version 3 of the License, or |
| 8 | // (at your option) any later version. |
| 9 | // |
| 10 | // GNU uCommon C++ is distributed in the hope that it will be useful, |
| 11 | // but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | // GNU Lesser General Public License for more details. |
| 14 | // |
| 15 | // You should have received a copy of the GNU Lesser General Public License |
| 16 | // along with GNU uCommon C++. If not, see <http://www.gnu.org/licenses/>. |
| 17 | |
| 18 | #include "local.h" |
| 19 | |
| 20 | SSLBuffer::SSLBuffer(secure::client_t scontext) : |
| 21 | TCPBuffer() |
| 22 | { |
| 23 | context *ctx = (context *)scontext; |
| 24 | ssl = NULL; |
| 25 | bio = NULL; |
| 26 | server = false; |
| 27 | |
| 28 | if(ctx && ctx->ctx && ctx->err() == secure::OK) |
| 29 | ssl = SSL_new(ctx->ctx); |
| 30 | } |
| 31 | |
| 32 | SSLBuffer::SSLBuffer(const TCPServer *tcp, secure::server_t scontext, size_t size) : |
| 33 | TCPBuffer(tcp, size) |
| 34 | { |
| 35 | context *ctx = (context *)scontext; |
| 36 | ssl = NULL; |
| 37 | bio = NULL; |
| 38 | server = true; |
| 39 | |
| 40 | if(ctx && ctx->ctx && ctx->err() == secure::OK) |
| 41 | ssl = SSL_new(ctx->ctx); |
| 42 | |
| 43 | if(!is_open() || !ssl) |
| 44 | return; |
| 45 | |
| 46 | SSL_set_fd((SSL *)ssl, getsocket()); |
| 47 | |
| 48 | if(SSL_accept((SSL *)ssl) > 0) |
| 49 | bio = SSL_get_wbio((SSL *)ssl); |
| 50 | } |
| 51 | |
| 52 | SSLBuffer::~SSLBuffer() |
| 53 | { |
| 54 | release(); |
| 55 | } |
| 56 | |
| 57 | void SSLBuffer::open(const char *host, const char *service, size_t size) |
| 58 | { |
| 59 | if(server) { |
| 60 | ioerr = EBADF; |
| 61 | return; |
| 62 | } |
| 63 | |
| 64 | close(); |
| 65 | TCPBuffer::open(host, service, size); |
| 66 | |
| 67 | if(!is_open() || !ssl) |
| 68 | return; |
| 69 | |
| 70 | SSL_set_fd((SSL *)ssl, getsocket()); |
| 71 | |
| 72 | if(SSL_connect((SSL *)ssl) > 0) |
| 73 | bio = SSL_get_wbio((SSL *)ssl); |
| 74 | } |
| 75 | |
| 76 | void SSLBuffer::close(void) |
| 77 | { |
| 78 | if(server) { |
| 79 | ioerr = EBADF; |
| 80 | return; |
| 81 | } |
| 82 | |
| 83 | if(bio) { |
| 84 | SSL_shutdown((SSL *)ssl); |
| 85 | bio = NULL; |
| 86 | } |
| 87 | |
| 88 | TCPBuffer::close(); |
| 89 | } |
| 90 | |
| 91 | void SSLBuffer::release(void) |
| 92 | { |
| 93 | server = false; |
| 94 | close(); |
| 95 | if(ssl) { |
| 96 | SSL_free((SSL *)ssl); |
| 97 | ssl = NULL; |
| 98 | } |
| 99 | } |
| 100 | |
| 101 | size_t SSLBuffer::_push(const char *address, size_t size) |
| 102 | { |
| 103 | if(!bio) |
| 104 | return TCPBuffer::_push(address, size); |
| 105 | |
| 106 | int result = SSL_write((SSL *)ssl, address, size); |
| 107 | if(result < 0) { |
| 108 | result = 0; |
| 109 | ioerr = EIO; |
| 110 | } |
| 111 | return (ssize_t)result; |
| 112 | } |
| 113 | |
| 114 | bool SSLBuffer::_pending(void) |
| 115 | { |
| 116 | if(so == INVALID_SOCKET) |
| 117 | return false; |
| 118 | |
| 119 | if(input_pending()) |
| 120 | return true; |
| 121 | |
| 122 | if(ssl && SSL_pending((SSL *)ssl)) |
| 123 | return true; |
| 124 | |
| 125 | if(iowait && iowait != Timer::inf) |
| 126 | return Socket::wait(so, iowait); |
| 127 | |
| 128 | return Socket::wait(so, 0); |
| 129 | } |
| 130 | |
| 131 | size_t SSLBuffer::_pull(char *address, size_t size) |
| 132 | { |
| 133 | if(!bio) |
| 134 | return TCPBuffer::_pull(address, size); |
| 135 | |
| 136 | if(SSL_pending((SSL *)ssl) == 0 && iowait && iowait != Timer::inf && !Socket::wait(so, iowait)) |
| 137 | return 0; |
| 138 | |
| 139 | int result = SSL_read((SSL *)ssl, address, size); |
| 140 | if(result < 0) { |
| 141 | result = 0; |
| 142 | ioerr = EIO; |
| 143 | } |
| 144 | return (size_t) result; |
| 145 | } |
| 146 | |
| 147 | bool SSLBuffer::_flush(void) |
| 148 | { |
| 149 | int result; |
| 150 | |
| 151 | if(TCPBuffer::_flush()) { |
| 152 | if(bio) { |
| 153 | result = BIO_flush((BIO *)bio); |
| 154 | if(result < 1) { |
| 155 | ioerr = EIO; |
| 156 | return false; |
| 157 | } |
| 158 | } |
| 159 | return true; |
| 160 | } |
| 161 | |
| 162 | return false; |
| 163 | } |
| 164 | |