diff options
Diffstat (limited to 'protocols/ssl_openssl.c')
| -rw-r--r-- | protocols/ssl_openssl.c | 221 |
1 files changed, 0 insertions, 221 deletions
diff --git a/protocols/ssl_openssl.c b/protocols/ssl_openssl.c deleted file mode 100644 index b6f6c520..00000000 --- a/protocols/ssl_openssl.c +++ /dev/null @@ -1,221 +0,0 @@ - /********************************************************************\ - * BitlBee -- An IRC to other IM-networks gateway * - * * - * Copyright 2002-2004 Wilmer van der Gaast and others * - \********************************************************************/ - -/* SSL module - OpenSSL version */ - -/* - 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 with - the Debian GNU/Linux distribution in /usr/share/common-licenses/GPL; - if not, write to the Free Software Foundation, Inc., 59 Temple Place, - Suite 330, Boston, MA 02111-1307 USA -*/ - -#include <openssl/crypto.h> -#include <openssl/rand.h> -#include <openssl/x509.h> -#include <openssl/pem.h> -#include <openssl/ssl.h> -#include <openssl/err.h> - -#include "proxy.h" -#include "ssl_client.h" -#include "sock.h" - -int ssl_errno = 0; - -static gboolean initialized = FALSE; - -struct scd -{ - ssl_input_function func; - gpointer data; - int fd; - gboolean established; - - int inpa; - int lasterr; /* Necessary for SSL_get_error */ - SSL *ssl; - SSL_CTX *ssl_ctx; -}; - -static gboolean ssl_connected( gpointer data, gint source, b_input_condition cond ); - - -void *ssl_connect( char *host, int port, ssl_input_function func, gpointer data ) -{ - struct scd *conn = g_new0( struct scd, 1 ); - SSL_METHOD *meth; - - conn->fd = proxy_connect( host, port, ssl_connected, conn ); - conn->func = func; - conn->data = data; - - if( conn->fd < 0 ) - { - g_free( conn ); - return( NULL ); - } - - if( !initialized ) - { - initialized = TRUE; - SSLeay_add_ssl_algorithms(); - } - - meth = TLSv1_client_method(); - conn->ssl_ctx = SSL_CTX_new( meth ); - if( conn->ssl_ctx == NULL ) - { - conn->fd = -1; - return( NULL ); - } - - conn->ssl = SSL_new( conn->ssl_ctx ); - if( conn->ssl == NULL ) - { - conn->fd = -1; - return( NULL ); - } - - return( conn ); -} - -static gboolean ssl_handshake( gpointer data, gint source, b_input_condition cond ); - -static gboolean ssl_connected( gpointer data, gint source, b_input_condition cond ) -{ - struct scd *conn = data; - - if( source == -1 ) - return ssl_handshake( data, -1, cond ); - - /* We can do at least the handshake with non-blocking I/O */ - sock_make_nonblocking( conn->fd ); - SSL_set_fd( conn->ssl, conn->fd ); - - return ssl_handshake( data, source, cond ); -} - -static gboolean ssl_handshake( gpointer data, gint source, b_input_condition cond ) -{ - struct scd *conn = data; - int st; - - if( ( st = SSL_connect( conn->ssl ) ) < 0 ) - { - conn->lasterr = SSL_get_error( conn->ssl, st ); - if( conn->lasterr != SSL_ERROR_WANT_READ && conn->lasterr != SSL_ERROR_WANT_WRITE ) - goto ssl_connected_failure; - - conn->inpa = b_input_add( conn->fd, ssl_getdirection( conn ), ssl_handshake, data ); - return FALSE; - } - - conn->established = TRUE; - sock_make_blocking( conn->fd ); /* For now... */ - conn->func( conn->data, conn, cond ); - return FALSE; - -ssl_connected_failure: - conn->func( conn->data, NULL, cond ); - - if( conn->ssl ) - { - SSL_shutdown( conn->ssl ); - SSL_free( conn->ssl ); - } - if( conn->ssl_ctx ) - { - SSL_CTX_free( conn->ssl_ctx ); - } - if( source >= 0 ) closesocket( source ); - g_free( conn ); - - return FALSE; -} - -int ssl_read( void *conn, char *buf, int len ) -{ - int st; - - if( !((struct scd*)conn)->established ) - { - ssl_errno = SSL_NOHANDSHAKE; - return -1; - } - - st = SSL_read( ((struct scd*)conn)->ssl, buf, len ); - - ssl_errno = SSL_OK; - if( st <= 0 ) - { - ((struct scd*)conn)->lasterr = SSL_get_error( ((struct scd*)conn)->ssl, st ); - if( ((struct scd*)conn)->lasterr == SSL_ERROR_WANT_READ || ((struct scd*)conn)->lasterr == SSL_ERROR_WANT_WRITE ) - ssl_errno = SSL_AGAIN; - } - - return st; -} - -int ssl_write( void *conn, const char *buf, int len ) -{ - int st; - - if( !((struct scd*)conn)->established ) - { - ssl_errno = SSL_NOHANDSHAKE; - return -1; - } - - st = SSL_write( ((struct scd*)conn)->ssl, buf, len ); - - ssl_errno = SSL_OK; - if( st <= 0 ) - { - ((struct scd*)conn)->lasterr = SSL_get_error( ((struct scd*)conn)->ssl, st ); - if( ((struct scd*)conn)->lasterr == SSL_ERROR_WANT_READ || ((struct scd*)conn)->lasterr == SSL_ERROR_WANT_WRITE ) - ssl_errno = SSL_AGAIN; - } - - return st; -} - -void ssl_disconnect( void *conn_ ) -{ - struct scd *conn = conn_; - - if( conn->inpa != -1 ) - b_event_remove( conn->inpa ); - - if( conn->established ) - SSL_shutdown( conn->ssl ); - - closesocket( conn->fd ); - - SSL_free( conn->ssl ); - SSL_CTX_free( conn->ssl_ctx ); - g_free( conn ); -} - -int ssl_getfd( void *conn ) -{ - return( ((struct scd*)conn)->fd ); -} - -b_input_condition ssl_getdirection( void *conn ) -{ - return( ((struct scd*)conn)->lasterr == SSL_ERROR_WANT_WRITE ? GAIM_INPUT_WRITE : GAIM_INPUT_READ ); -} |