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-rw-r--r--src/null_mechanism.cpp282
1 files changed, 0 insertions, 282 deletions
diff --git a/src/null_mechanism.cpp b/src/null_mechanism.cpp
deleted file mode 100644
index f4ea9e7..0000000
--- a/src/null_mechanism.cpp
+++ /dev/null
@@ -1,282 +0,0 @@
-/*
- Copyright (c) 2007-2013 Contributors as noted in the AUTHORS file
-
- This file is part of 0MQ.
-
- 0MQ is free software; you can redistribute it and/or modify it under
- the terms of the GNU Lesser General Public License as published by
- the Free Software Foundation; either version 3 of the License, or
- (at your option) any later version.
-
- 0MQ 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 Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>.
-*/
-
-#include "platform.hpp"
-#ifdef ZMQ_HAVE_WINDOWS
-#include "windows.hpp"
-#endif
-
-#include <stddef.h>
-#include <string.h>
-#include <stdlib.h>
-
-#include "err.hpp"
-#include "msg.hpp"
-#include "session_base.hpp"
-#include "wire.hpp"
-#include "null_mechanism.hpp"
-
-zmq::null_mechanism_t::null_mechanism_t (session_base_t *session_,
- const std::string &peer_address_,
- const options_t &options_) :
- mechanism_t (options_),
- session (session_),
- peer_address (peer_address_),
- ready_command_sent (false),
- ready_command_received (false),
- zap_connected (false),
- zap_request_sent (false),
- zap_reply_received (false)
-{
- // NULL mechanism only uses ZAP if there's a domain defined
- // This prevents ZAP requests on naive sockets
- if (options.zap_domain.size () > 0
- && session->zap_connect () == 0)
- zap_connected = true;
-}
-
-zmq::null_mechanism_t::~null_mechanism_t ()
-{
-}
-
-int zmq::null_mechanism_t::next_handshake_command (msg_t *msg_)
-{
- if (ready_command_sent) {
- errno = EAGAIN;
- return -1;
- }
- if (zap_connected && !zap_reply_received) {
- if (zap_request_sent) {
- errno = EAGAIN;
- return -1;
- }
- send_zap_request ();
- zap_request_sent = true;
- const int rc = receive_and_process_zap_reply ();
- if (rc != 0)
- return -1;
- zap_reply_received = true;
- }
-
- unsigned char * const command_buffer = (unsigned char *) malloc (512);
- alloc_assert (command_buffer);
-
- unsigned char *ptr = command_buffer;
-
- // Add mechanism string
- memcpy (ptr, "\5READY", 6);
- ptr += 6;
-
- // Add socket type property
- const char *socket_type = socket_type_string (options.type);
- ptr += add_property (ptr, "Socket-Type", socket_type, strlen (socket_type));
-
- // Add identity property
- if (options.type == ZMQ_REQ
- || options.type == ZMQ_DEALER
- || options.type == ZMQ_ROUTER) {
- ptr += add_property (ptr, "Identity",
- options.identity, options.identity_size);
- }
-
- const size_t command_size = ptr - command_buffer;
- const int rc = msg_->init_size (command_size);
- errno_assert (rc == 0);
- memcpy (msg_->data (), command_buffer, command_size);
- free (command_buffer);
-
- ready_command_sent = true;
-
- return 0;
-}
-
-int zmq::null_mechanism_t::process_handshake_command (msg_t *msg_)
-{
- if (ready_command_received) {
- errno = EPROTO;
- return -1;
- }
-
- const unsigned char *ptr =
- static_cast <unsigned char *> (msg_->data ());
- size_t bytes_left = msg_->size ();
-
- if (bytes_left < 6 || memcmp (ptr, "\5READY", 6)) {
- errno = EPROTO;
- return -1;
- }
-
- ptr += 6;
- bytes_left -= 6;
-
- int rc = parse_metadata (ptr, bytes_left);
- if (rc == 0) {
- int rc = msg_->close ();
- errno_assert (rc == 0);
- rc = msg_->init ();
- errno_assert (rc == 0);
- }
-
- ready_command_received = true;
-
- return rc;
-}
-
-int zmq::null_mechanism_t::zap_msg_available ()
-{
- if (zap_reply_received) {
- errno = EFSM;
- return -1;
- }
- const int rc = receive_and_process_zap_reply ();
- if (rc == 0)
- zap_reply_received = true;
- return rc;
-}
-
-bool zmq::null_mechanism_t::is_handshake_complete () const
-{
- return ready_command_received && ready_command_sent;
-}
-
-void zmq::null_mechanism_t::send_zap_request ()
-{
- int rc;
- msg_t msg;
-
- // Address delimiter frame
- rc = msg.init ();
- errno_assert (rc == 0);
- msg.set_flags (msg_t::more);
- rc = session->write_zap_msg (&msg);
- errno_assert (rc == 0);
-
- // Version frame
- rc = msg.init_size (3);
- errno_assert (rc == 0);
- memcpy (msg.data (), "1.0", 3);
- msg.set_flags (msg_t::more);
- rc = session->write_zap_msg (&msg);
- errno_assert (rc == 0);
-
- // Request id frame
- rc = msg.init_size (1);
- errno_assert (rc == 0);
- memcpy (msg.data (), "1", 1);
- msg.set_flags (msg_t::more);
- rc = session->write_zap_msg (&msg);
- errno_assert (rc == 0);
-
- // Domain frame
- rc = msg.init_size (options.zap_domain.length ());
- errno_assert (rc == 0);
- memcpy (msg.data (), options.zap_domain.c_str (), options.zap_domain.length ());
- msg.set_flags (msg_t::more);
- rc = session->write_zap_msg (&msg);
- errno_assert (rc == 0);
-
- // Address frame
- rc = msg.init_size (peer_address.length ());
- errno_assert (rc == 0);
- memcpy (msg.data (), peer_address.c_str (), peer_address.length ());
- msg.set_flags (msg_t::more);
- rc = session->write_zap_msg (&msg);
- errno_assert (rc == 0);
-
- // Identity frame
- rc = msg.init_size (options.identity_size);
- errno_assert (rc == 0);
- memcpy (msg.data (), options.identity, options.identity_size);
- msg.set_flags (msg_t::more);
- rc = session->write_zap_msg (&msg);
- errno_assert (rc == 0);
-
- // Mechanism frame
- rc = msg.init_size (4);
- errno_assert (rc == 0);
- memcpy (msg.data (), "NULL", 4);
- rc = session->write_zap_msg (&msg);
- errno_assert (rc == 0);
-}
-
-int zmq::null_mechanism_t::receive_and_process_zap_reply ()
-{
- int rc = 0;
- msg_t msg [7]; // ZAP reply consists of 7 frames
-
- // Initialize all reply frames
- for (int i = 0; i < 7; i++) {
- rc = msg [i].init ();
- errno_assert (rc == 0);
- }
-
- for (int i = 0; i < 7; i++) {
- rc = session->read_zap_msg (&msg [i]);
- if (rc == -1)
- break;
- if ((msg [i].flags () & msg_t::more) == (i < 6? 0: msg_t::more)) {
- errno = EPROTO;
- rc = -1;
- break;
- }
- }
-
- if (rc != 0)
- goto error;
-
- // Address delimiter frame
- if (msg [0].size () > 0) {
- rc = -1;
- errno = EPROTO;
- goto error;
- }
-
- // Version frame
- if (msg [1].size () != 3 || memcmp (msg [1].data (), "1.0", 3)) {
- rc = -1;
- errno = EPROTO;
- goto error;
- }
-
- // Request id frame
- if (msg [2].size () != 1 || memcmp (msg [2].data (), "1", 1)) {
- rc = -1;
- errno = EPROTO;
- goto error;
- }
-
- // Status code frame
- if (msg [3].size () != 3 || memcmp (msg [3].data (), "200", 3)) {
- rc = -1;
- errno = EACCES;
- goto error;
- }
-
- // Process metadata frame
- rc = parse_metadata (static_cast <const unsigned char*> (msg [6].data ()),
- msg [6].size ());
-
-error:
- for (int i = 0; i < 7; i++) {
- const int rc2 = msg [i].close ();
- errno_assert (rc2 == 0);
- }
-
- return rc;
-}
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