* ***** END LICENSE BLOCK ***** */
#include <stdlib.h>
+#include <time.h>
#include <guacamole/guacio.h>
#include <guacamole/client.h>
#include "client.h"
#include "thread.h"
+void __guacd_sleep(int millis) {
+
+ struct timespec sleep_period;
+
+ sleep_period.tv_sec = millis / 1000;
+ sleep_period.tv_nsec = (millis % 1000) * 1000000L;
+
+ nanosleep(&sleep_period, NULL);
+
+}
+
void guac_client_stop(guac_client* client) {
client->state = STOPPING;
}
void* __guac_client_output_thread(void* data) {
guac_client* client = (guac_client*) data;
- GUACIO* io = client->io;
+ guac_socket* io = client->io;
- guac_timestamp last_ping_timestamp = guac_current_timestamp();
+ guac_timestamp last_ping_timestamp = guac_protocol_get_timestamp();
/* Guacamole client output loop */
while (client->state == RUNNING) {
/* Occasionally ping client with repeat of last sync */
- guac_timestamp timestamp = guac_current_timestamp();
+ guac_timestamp timestamp = guac_protocol_get_timestamp();
if (timestamp - last_ping_timestamp > GUAC_SYNC_FREQUENCY) {
/* Record time of last synnc */
last_ping_timestamp = timestamp;
/* Send sync */
- if (guac_send_sync(io, client->last_sent_timestamp)) {
- guac_log_error("Error sending \"sync\" instruction: %s", guac_status_string(guac_error));
+ if (guac_protocol_send_sync(io, client->last_sent_timestamp)) {
+ guac_client_log_error(client, "Error sending \"sync\" instruction: %s", guac_status_string(guac_error));
guac_client_stop(client);
return NULL;
}
/* Flush */
- if (guac_flush(io)) {
- guac_log_error("Error flushing output: %s", guac_status_string(guac_error));
+ if (guac_socket_flush(io)) {
+ guac_client_log_error(client, "Error flushing output: %s", guac_status_string(guac_error));
guac_client_stop(client);
return NULL;
}
int retval = client->handle_messages(client);
if (retval) {
- guac_log_error("Error handling server messages: %s", guac_status_string(guac_error));
+ guac_client_log_error(client, "Error handling server messages: %s", guac_status_string(guac_error));
guac_client_stop(client);
return NULL;
}
/* Sleep as necessary */
- guac_sleep(GUAC_SERVER_MESSAGE_HANDLE_FREQUENCY);
+ __guacd_sleep(GUAC_SERVER_MESSAGE_HANDLE_FREQUENCY);
/* Send sync instruction */
- client->last_sent_timestamp = guac_current_timestamp();
- if (guac_send_sync(io, client->last_sent_timestamp)) {
- guac_log_error("Error sending \"sync\" instruction: %s", guac_status_string(guac_error));
+ client->last_sent_timestamp = guac_protocol_get_timestamp();
+ if (guac_protocol_send_sync(io, client->last_sent_timestamp)) {
+ guac_client_log_error(client, "Error sending \"sync\" instruction: %s", guac_status_string(guac_error));
guac_client_stop(client);
return NULL;
}
- if (guac_flush(io)) {
- guac_log_error("Error flushing output: %s", guac_status_string(guac_error));
+ if (guac_socket_flush(io)) {
+ guac_client_log_error(client, "Error flushing output: %s", guac_status_string(guac_error));
guac_client_stop(client);
return NULL;
}
/* If sync threshold exceeded, don't spin waiting for resync */
else
- guac_sleep(GUAC_SERVER_MESSAGE_HANDLE_FREQUENCY);
+ __guacd_sleep(GUAC_SERVER_MESSAGE_HANDLE_FREQUENCY);
}
/* If no message handler, just sleep until next sync ping */
else
- guac_sleep(GUAC_SYNC_FREQUENCY);
+ __guacd_sleep(GUAC_SYNC_FREQUENCY);
} /* End of output loop */
void* __guac_client_input_thread(void* data) {
guac_client* client = (guac_client*) data;
- GUACIO* io = client->io;
+ guac_socket* io = client->io;
/* Guacamole client input loop */
while (client->state == RUNNING) {
/* Read instruction */
guac_instruction* instruction =
- guac_read_instruction(io, GUAC_USEC_TIMEOUT);
+ guac_protocol_read_instruction(io, GUAC_USEC_TIMEOUT);
/* Stop on error */
if (instruction == NULL) {
- guac_log_error("Error reading instruction: %s", guac_status_string(guac_error));
+ guac_client_log_error(client, "Error reading instruction: %s", guac_status_string(guac_error));
guac_client_stop(client);
return NULL;
}
/* Call handler, stop on error */
if (guac_client_handle_instruction(client, instruction) < 0) {
- guac_log_error("Error in client \"%s\" instruction handler: %s", instruction->opcode, guac_status_string(guac_error));
- guac_free_instruction(instruction);
+ guac_client_log_error(client, "Error in client \"%s\" instruction handler: %s", instruction->opcode, guac_status_string(guac_error));
+ guac_instruction_free(instruction);
guac_client_stop(client);
return NULL;
}
/* Free allocated instruction */
- guac_free_instruction(instruction);
+ guac_instruction_free(instruction);
}
#include <netinet/in.h>
#include <errno.h>
+#include <syslog.h>
#include <guacamole/client.h>
-#include <guacamole/thread.h>
-#include <guacamole/log.h>
+#include <guacamole/error.h>
#include "client.h"
void* start_client_thread(void* data) {
guac_client* client;
+ guac_client_plugin* plugin;
client_thread_data* thread_data = (client_thread_data*) data;
+ guac_socket* socket;
+ guac_instruction* select;
+ guac_instruction* connect;
+
+ /* Open guac_socket */
+ socket = guac_socket_open(thread_data->fd);
+
+ /* Get protocol from select instruction */
+ select =
+ guac_protocol_expect_instruction(socket, GUAC_USEC_TIMEOUT, "select");
+ if (select == NULL) {
+ /* TODO: LOG */
+ guac_socket_close(socket);
+ free(data);
+ return NULL;
+ }
- guac_log_info("Spawning client");
+ /* Validate args to select */
+ if (select->argc != 1) {
+ guac_error = GUAC_STATUS_BAD_ARGUMENT;
+ guac_socket_close(socket);
+ free(data);
+ return NULL;
+ }
- /* Load and start client */
- client = guac_get_client(thread_data->fd, GUAC_USEC_TIMEOUT);
+ /* Get plugin from protocol in select */
+ plugin = guac_client_plugin_open(select->argv[0]);
+ guac_instruction_free(select);
- if (client == NULL) {
- guac_log_error("Client retrieval failed");
+ if (plugin == NULL) {
+ /* TODO: LOG ERROR */
+ guac_socket_close(socket);
free(data);
return NULL;
}
- guac_start_client(client);
- guac_free_client(client);
+ /* Send args response */
+ if (guac_protocol_send_args(socket, plugin->args)) {
- /* Close socket */
- if (close(thread_data->fd) < 0) {
- guac_log_error("Error closing connection: %s", strerror(errno));
+ if (guac_client_plugin_close(plugin)) {
+ /* TODO: LOG ERROR */
+ }
+
+ guac_socket_close(socket);
free(data);
return NULL;
}
- guac_log_info("Client finished");
+ /* Get args from connect instruction */
+ connect =
+ guac_protocol_expect_instruction(socket, GUAC_USEC_TIMEOUT, "connect");
+ if (connect == NULL) {
+
+ if (guac_client_plugin_close(plugin)) {
+ /* TODO: LOG ERROR */
+ }
+
+ guac_socket_close(socket);
+ free(data);
+ return NULL;
+ }
+
+ /* Load and init client */
+ client = guac_client_plugin_get_client(plugin, socket,
+ connect->argc, connect->argv);
+ guac_instruction_free(select);
+
+ if (client == NULL) {
+
+ if (guac_client_plugin_close(plugin)) {
+ /* TODO: LOG ERROR */
+ }
+
+ guac_socket_close(socket);
+ free(data);
+ return NULL;
+ }
+
+ /* Start client threads */
+ guac_start_client(client);
+
+ /* Clean up */
+ guac_client_free(client);
+ if (guac_client_plugin_close(plugin)) {
+ /* TODO: LOG ERROR */
+ }
+
+ /* Close socket */
+ guac_socket_close(socket);
+ close(thread_data->fd);
+
free(data);
return NULL;
}
#else
daemon_pid = getpid();
- guac_log_info("fork() not defined at compile time.");
- guac_log_info("guacd running in foreground only.");
+ syslog(LOG_INFO, "fork() not defined at compile time.");
+ syslog(LOG_INFO, "guacd running in foreground only.");
#endif
/* Otherwise, this is the daemon */
- guac_log_info("Started, listening on port %i", listen_port);
+ syslog(LOG_INFO, "Started, listening on port %i", listen_port);
/* Ignore SIGPIPE */
if (signal(SIGPIPE, SIG_IGN) == SIG_ERR) {
- guac_log_error("Could not set handler for SIGPIPE to ignore. SIGPIPE may cause termination of the daemon.");
+ syslog(LOG_ERR, "Could not set handler for SIGPIPE to ignore. SIGPIPE may cause termination of the daemon.");
}
/* Ignore SIGCHLD (force automatic removal of children) */
if (signal(SIGCHLD, SIG_IGN) == SIG_ERR) {
- guac_log_error("Could not set handler for SIGCHLD to ignore. Child processes may pile up in the process table.");
+ syslog(LOG_ERR, "Could not set handler for SIGCHLD to ignore. Child processes may pile up in the process table.");
}
/* Daemon loop */
/* Listen for connections */
if (listen(socket_fd, 5) < 0) {
- guac_log_error("Could not listen on socket: %s", strerror(errno));
+ syslog(LOG_ERR, "Could not listen on socket: %s", strerror(errno));
return 3;
}
client_addr_len = sizeof(client_addr);
connected_socket_fd = accept(socket_fd, (struct sockaddr*) &client_addr, &client_addr_len);
if (connected_socket_fd < 0) {
- guac_log_error("Could not accept client connection: %s", strerror(errno));
+ syslog(LOG_ERR, "Could not accept client connection: %s", strerror(errno));
return 3;
}
/* If error, log */
if (child_pid == -1)
- guac_log_error("Error forking child process: %s\n", strerror(errno));
+ syslog(LOG_ERR, "Error forking child process: %s\n", strerror(errno));
/* If child, start client, and exit when finished */
else if (child_pid == 0) {
/* If parent, close reference to child's descriptor */
else if (close(connected_socket_fd) < 0) {
- guac_log_error("Error closing daemon reference to child descriptor: %s", strerror(errno));
+ syslog(LOG_ERR, "Error closing daemon reference to child descriptor: %s", strerror(errno));
}
#else
if (guac_thread_create(&thread, start_client_thread, (void*) data))
- guac_log_error("Could not create client thread: %s", strerror(errno));
+ syslog(LOG_ERR, "Could not create client thread: %s", strerror(errno));
#endif
/* Close socket */
if (close(socket_fd) < 0) {
- guac_log_error("Could not close socket: %s", strerror(errno));
+ syslog(LOG_ERR, "Could not close socket: %s", strerror(errno));
return 3;
}