A super trimmed down TLS stack, GPL licensed

Dependents:   MiniTLS-HTTPS-Example

MiniTLS - A super trimmed down TLS/SSL Library for embedded devices Author: Donatien Garnier Copyright (C) 2013-2014 AppNearMe Ltd

This program 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.

This program 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 02110-1301, USA.

Committer:
MiniTLS
Date:
Fri Jun 06 10:49:02 2014 +0000
Revision:
0:35aa5be3b78d
Initial commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
MiniTLS 0:35aa5be3b78d 1 /*
MiniTLS 0:35aa5be3b78d 2 MuTLS - A super trimmed down TLS/SSL Library for embedded devices
MiniTLS 0:35aa5be3b78d 3 Author: Donatien Garnier
MiniTLS 0:35aa5be3b78d 4 Copyright (C) 2013-2014 AppNearMe Ltd
MiniTLS 0:35aa5be3b78d 5
MiniTLS 0:35aa5be3b78d 6 This program is free software; you can redistribute it and/or
MiniTLS 0:35aa5be3b78d 7 modify it under the terms of the GNU General Public License
MiniTLS 0:35aa5be3b78d 8 as published by the Free Software Foundation; either version 2
MiniTLS 0:35aa5be3b78d 9 of the License, or (at your option) any later version.
MiniTLS 0:35aa5be3b78d 10
MiniTLS 0:35aa5be3b78d 11 This program is distributed in the hope that it will be useful,
MiniTLS 0:35aa5be3b78d 12 but WITHOUT ANY WARRANTY; without even the implied warranty of
MiniTLS 0:35aa5be3b78d 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
MiniTLS 0:35aa5be3b78d 14 GNU General Public License for more details.
MiniTLS 0:35aa5be3b78d 15
MiniTLS 0:35aa5be3b78d 16 You should have received a copy of the GNU General Public License
MiniTLS 0:35aa5be3b78d 17 along with this program; if not, write to the Free Software
MiniTLS 0:35aa5be3b78d 18 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
MiniTLS 0:35aa5be3b78d 19 *//**
MiniTLS 0:35aa5be3b78d 20 * \file tls_alert.c
MiniTLS 0:35aa5be3b78d 21 * \copyright Copyright (c) AppNearMe Ltd 2013
MiniTLS 0:35aa5be3b78d 22 * \author Donatien Garnier
MiniTLS 0:35aa5be3b78d 23 */
MiniTLS 0:35aa5be3b78d 24
MiniTLS 0:35aa5be3b78d 25 #define __DEBUG__ 4
MiniTLS 0:35aa5be3b78d 26 #ifndef __MODULE__
MiniTLS 0:35aa5be3b78d 27 #define __MODULE__ "tls_alert.c"
MiniTLS 0:35aa5be3b78d 28 #endif
MiniTLS 0:35aa5be3b78d 29
MiniTLS 0:35aa5be3b78d 30 #include "core/fwk.h"
MiniTLS 0:35aa5be3b78d 31 #include "inc/mutls_errors.h"
MiniTLS 0:35aa5be3b78d 32 #include "tls_alert.h"
MiniTLS 0:35aa5be3b78d 33
MiniTLS 0:35aa5be3b78d 34 mutls_err_t tls_alert_send( tls_record_t* record, tls_message_alert_level_t level, tls_message_alert_description_t description, buffer_t* buffer_tx )
MiniTLS 0:35aa5be3b78d 35 {
MiniTLS 0:35aa5be3b78d 36 if( buffer_size(buffer_tx) < 2 )
MiniTLS 0:35aa5be3b78d 37 {
MiniTLS 0:35aa5be3b78d 38 return MUTLS_ERR_BUFFER_TOO_SMALL;
MiniTLS 0:35aa5be3b78d 39 }
MiniTLS 0:35aa5be3b78d 40
MiniTLS 0:35aa5be3b78d 41 buffer_reset(buffer_tx);
MiniTLS 0:35aa5be3b78d 42
MiniTLS 0:35aa5be3b78d 43 buffer_nu8_write(buffer_tx, level);
MiniTLS 0:35aa5be3b78d 44 buffer_nu8_write(buffer_tx, description);
MiniTLS 0:35aa5be3b78d 45
MiniTLS 0:35aa5be3b78d 46 mutls_err_t ret = tls_record_send(record, TLS_ALERT, buffer_tx);
MiniTLS 0:35aa5be3b78d 47 if(ret)
MiniTLS 0:35aa5be3b78d 48 {
MiniTLS 0:35aa5be3b78d 49 return ret;
MiniTLS 0:35aa5be3b78d 50 }
MiniTLS 0:35aa5be3b78d 51
MiniTLS 0:35aa5be3b78d 52 return MUTLS_OK;
MiniTLS 0:35aa5be3b78d 53 }
MiniTLS 0:35aa5be3b78d 54
MiniTLS 0:35aa5be3b78d 55 mutls_err_t tls_alert_process( tls_record_t* record, buffer_t* buffer_rx )
MiniTLS 0:35aa5be3b78d 56 {
MiniTLS 0:35aa5be3b78d 57 if( buffer_length(buffer_rx) < 2 )
MiniTLS 0:35aa5be3b78d 58 {
MiniTLS 0:35aa5be3b78d 59 return MUTLS_ERR_BUFFER_TOO_SMALL;
MiniTLS 0:35aa5be3b78d 60 }
MiniTLS 0:35aa5be3b78d 61
MiniTLS 0:35aa5be3b78d 62 tls_message_alert_level_t level = buffer_nu8_read(buffer_rx);
MiniTLS 0:35aa5be3b78d 63 tls_message_alert_description_t description = buffer_nu8_read(buffer_rx);
MiniTLS 0:35aa5be3b78d 64
MiniTLS 0:35aa5be3b78d 65 WARN("Alert: type: %d, description: %d", level, description);
MiniTLS 0:35aa5be3b78d 66 if(description == CLOSE_NOTIFY)
MiniTLS 0:35aa5be3b78d 67 {
MiniTLS 0:35aa5be3b78d 68 return MUTLS_ERR_CONNECTION_CLOSED;
MiniTLS 0:35aa5be3b78d 69 }
MiniTLS 0:35aa5be3b78d 70
MiniTLS 0:35aa5be3b78d 71 //Always return error
MiniTLS 0:35aa5be3b78d 72 return MUTLS_ERR_PEER;
MiniTLS 0:35aa5be3b78d 73 }