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/* BSD-2-Clause license
*
* Copyright (c) 2018-2023 NST <www.newinfosec.ru>, sss <sss at dark-alexandr dot net>.
*
*/
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <ev.h>
#include <webrdp_module_api.h>
#include "globals.h"
#include "remote_control.h"
#include "thread_impl.h"
#include "wrdp_thpool.h"
#include "wrdp_thpool_internals.h"
#include "ws_session.h"
#include "socket_helpers.h"
#include "task.h"
#include "remote_control.h"
#include "log.h"
static ws_session *
ws_create_session(int connection_fd)
{
ws_session *session = 0;
task_info *info = 0;
session = calloc(1, sizeof(ws_session));
if (!session)
{
perror("calloc");
goto error;
}
info = calloc(1, sizeof(task_info));
if (!info)
{
perror("calloc");
goto error;
}
session->task_info = info;
session->session_state = ws_session_initial;
session->connection_fd = connection_fd;
SLIST_INIT(&(session->backend_settings_head));
return session;
error:
if (session)
{
if (session->task_info)
{
free(session->task_info);
}
free(session);
}
return 0;
}
static void
ws_server_cb(EV_P_ ev_io *w, int revents)
{
int *sock = w->data;
int con = accept_new_connection(*sock);
if (con != -1)
{
ws_session *session = 0;
{
const char *msg = "accepting new ws connection";
log_msg((const uint8_t *)msg, strlen(msg),
wrdp_log_level_trace, 0);
}
session = ws_create_session(con);
if (!session)
{
close(con);
return;
}
if (!wrdp_thread_pool_add_task(g_globals.thpool, ws_run_session,
ws_session_init_cb, session))
{
const char *msg
= "Failed to move task to pool: pool is full";
log_msg((const uint8_t *)msg, strlen(msg),
wrdp_log_level_error, 0);
return;
}
}
}
static void
ctl_server_cb(EV_P_ ev_io *w, int revents)
{
int *sock = w->data;
int con = accept_new_connection(*sock);
if (con != -1)
{
const char *msg = "accepting new ctl connection";
log_msg(
(const uint8_t *)msg, strlen(msg), wrdp_log_level_trace, 0);
ctl_task_info *info = ctl_create_task(con);
if (!info)
{
close(con);
return;
}
if (!wrdp_thread_pool_add_task(
g_globals.thpool, ctl_run_task, 0, info))
{
const char *msg
= "Failed to move task to pool: pool is full";
log_msg((const uint8_t *)msg, strlen(msg),
wrdp_log_level_error, 0);
return;
}
/* TODO: */
}
}
void
run_ev_loop_main(int ws_tcp_sock, int ws_unix_sock, int ctl_server_sock_tcp,
int ctl_server_sock_unix)
{
if (ws_tcp_sock == -1 && ws_unix_sock == -1)
{
const char *msg
= "ws: both tcp port and unix socket does not set";
log_msg(
(const uint8_t *)msg, strlen(msg), wrdp_log_level_error, 0);
exit(EXIT_FAILURE);
}
if (ctl_server_sock_tcp == -1 && ctl_server_sock_unix == -1)
{
const char *msg
= "ctl: both tcp port and unix socket does not set";
log_msg(
(const uint8_t *)msg, strlen(msg), wrdp_log_level_error, 0);
exit(EXIT_FAILURE);
}
struct ev_loop *ev_loop = EV_DEFAULT;
ev_io *ws_ev_sock_acceptor, *ws_ev_unix_acceptor, *ctl_ev_sock_acceptor,
*ctl_ev_unix_acceptor;
if (ws_tcp_sock != -1)
{
int *sock = calloc(1, sizeof(int));
if (!sock)
{
perror("calloc");
exit(EXIT_FAILURE);
}
ws_ev_sock_acceptor = calloc(1, sizeof(ev_io));
*sock = ws_tcp_sock;
ev_io_init(
ws_ev_sock_acceptor, ws_server_cb, ws_tcp_sock, EV_READ);
ws_ev_sock_acceptor->data = sock;
ev_io_start(ev_loop, ws_ev_sock_acceptor);
}
if (ws_unix_sock != -1)
{
int *sock = calloc(1, sizeof(int));
if (!sock)
{
perror("calloc");
exit(EXIT_FAILURE);
}
ws_ev_unix_acceptor = calloc(1, sizeof(ev_io));
*sock = ws_unix_sock;
ev_io_init(
ws_ev_unix_acceptor, ws_server_cb, ws_unix_sock, EV_READ);
ws_ev_unix_acceptor->data = sock;
ev_io_start(ev_loop, ws_ev_unix_acceptor);
}
if (ctl_server_sock_tcp != -1)
{
int *sock = calloc(1, sizeof(int));
if (!sock)
{
perror("calloc");
exit(EXIT_FAILURE);
}
ctl_ev_sock_acceptor = calloc(1, sizeof(ev_io));
*sock = ctl_server_sock_tcp;
ev_io_init(ctl_ev_sock_acceptor, ctl_server_cb,
ctl_server_sock_tcp, EV_READ);
ctl_ev_sock_acceptor->data = sock;
ev_io_start(ev_loop, ctl_ev_sock_acceptor);
}
if (ctl_server_sock_unix != -1)
{
int *sock = calloc(1, sizeof(int));
if (!sock)
{
perror("calloc");
exit(EXIT_FAILURE);
}
ctl_ev_unix_acceptor = calloc(1, sizeof(ev_io));
*sock = ctl_server_sock_unix;
ev_io_init(ctl_ev_unix_acceptor, ctl_server_cb,
ctl_server_sock_unix, EV_READ);
ctl_ev_unix_acceptor->data = sock;
ev_io_start(ev_loop, ctl_ev_unix_acceptor);
}
ev_run(ev_loop, 0);
}
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