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(const TCPServer *tcp, secure::server_t scontext, size_t size) : |
| 21 | TCPBuffer(tcp, size) |
| 22 | { |
| 23 | ssl = context::session((context *)scontext); |
| 24 | bio = NULL; |
| 25 | server = true; |
| 26 | |
| 27 | if(!is_open() || !ssl) |
| 28 | return; |
| 29 | |
| 30 | gnutls_transport_set_ptr((SSL)ssl, reinterpret_cast<gnutls_transport_ptr_t>( so)); |
| 31 | int result = gnutls_handshake((SSL)ssl); |
| 32 | |
| 33 | if(result >= 0) |
| 34 | bio = ssl; |
| 35 | |
| 36 | } |
| 37 | |
| 38 | SSLBuffer::SSLBuffer(secure::client_t scontext) : |
| 39 | TCPBuffer() |
| 40 | { |
| 41 | ssl = context::session((context *)scontext); |
| 42 | bio = NULL; |
| 43 | server = false; |
| 44 | } |
| 45 | |
| 46 | SSLBuffer::~SSLBuffer() |
| 47 | { |
| 48 | release(); |
| 49 | } |
| 50 | |
| 51 | bool SSLBuffer::_pending(void) |
| 52 | { |
| 53 | return TCPBuffer::_pending(); |
| 54 | } |
| 55 | |
| 56 | void SSLBuffer::open(const char *host, const char *service, size_t size) |
| 57 | { |
| 58 | if(server) { |
| 59 | ioerr = EBADF; |
| 60 | return; |
| 61 | } |
| 62 | |
| 63 | close(); |
| 64 | |
| 65 | TCPBuffer::open(host, service, size); |
| 66 | |
| 67 | if(!is_open() || !ssl) |
| 68 | return; |
| 69 | |
| 70 | gnutls_transport_set_ptr((SSL)ssl, reinterpret_cast<gnutls_transport_ptr_t>(so)); |
| 71 | int result = gnutls_handshake((SSL)ssl); |
| 72 | |
| 73 | if(result >= 0) |
| 74 | bio = ssl; |
| 75 | } |
| 76 | |
| 77 | void SSLBuffer::close(void) |
| 78 | { |
| 79 | if(server) { |
| 80 | ioerr = EBADF; |
| 81 | return; |
| 82 | } |
| 83 | |
| 84 | if(bio) |
| 85 | gnutls_bye((SSL)ssl, GNUTLS_SHUT_RDWR); |
| 86 | bio = NULL; |
| 87 | TCPBuffer::close(); |
| 88 | } |
| 89 | |
| 90 | void SSLBuffer::release(void) |
| 91 | { |
| 92 | server = false; |
| 93 | close(); |
| 94 | if(ssl) { |
| 95 | gnutls_deinit((SSL)ssl); |
| 96 | ssl = NULL; |
| 97 | } |
| 98 | } |
| 99 | |
| 100 | bool SSLBuffer::_flush(void) |
| 101 | { |
| 102 | return TCPBuffer::_flush(); |
| 103 | } |
| 104 | |
| 105 | size_t SSLBuffer::_push(const char *address, size_t size) |
| 106 | { |
| 107 | if(!bio) |
| 108 | return TCPBuffer::_push(address, size); |
| 109 | |
| 110 | int result = gnutls_record_send((SSL)ssl, address, size); |
| 111 | if(result < 0) { |
| 112 | result = 0; |
| 113 | ioerr = EIO; |
| 114 | } |
| 115 | return (size_t)result; |
| 116 | } |
| 117 | |
| 118 | size_t SSLBuffer::_pull(char *address, size_t size) |
| 119 | { |
| 120 | if(!bio) |
| 121 | return TCPBuffer::_pull(address, size); |
| 122 | |
| 123 | int result = gnutls_record_recv((SSL)ssl, address, size); |
| 124 | if(result < 0) { |
| 125 | result = 0; |
| 126 | ioerr = EIO; |
| 127 | } |
| 128 | return (size_t)result; |
| 129 | } |
| 130 | |