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-rw-r--r--kvmd/apps/vnc/server.py25
1 files changed, 22 insertions, 3 deletions
diff --git a/kvmd/apps/vnc/server.py b/kvmd/apps/vnc/server.py
index 73c9c148..55ff4e7c 100644
--- a/kvmd/apps/vnc/server.py
+++ b/kvmd/apps/vnc/server.py
@@ -285,12 +285,18 @@ class _Client(RfbClient): # pylint: disable=too-many-instance-attributes
# =====
class VncServer: # pylint: disable=too-many-instance-attributes
- def __init__( # pylint: disable=too-many-arguments
+ def __init__( # pylint: disable=too-many-arguments,too-many-locals
self,
host: str,
port: int,
max_clients: int,
+ no_delay: bool,
+ keepalive_enabled: bool,
+ keepalive_idle: int,
+ keepalive_interval: int,
+ keepalive_count: int,
+
tls_ciphers: str,
tls_timeout: float,
@@ -318,6 +324,19 @@ class VncServer: # pylint: disable=too-many-instance-attributes
remote = rfb_format_remote(writer)
logger.info("[entry] [%s]: Connected client", remote)
try:
+ sock = writer.get_extra_info("socket")
+ if no_delay:
+ sock.setsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY, 1)
+ if keepalive_enabled:
+ # https://www.tldp.org/HOWTO/html_single/TCP-Keepalive-HOWTO/#setsockopt
+ # https://blog.cloudflare.com/when-tcp-sockets-refuse-to-die
+ sock.setsockopt(socket.SOL_SOCKET, socket.SO_KEEPALIVE, 1)
+ sock.setsockopt(socket.IPPROTO_TCP, socket.TCP_KEEPIDLE, keepalive_idle)
+ sock.setsockopt(socket.IPPROTO_TCP, socket.TCP_KEEPINTVL, keepalive_interval)
+ sock.setsockopt(socket.IPPROTO_TCP, socket.TCP_KEEPCNT, keepalive_count)
+ timeout = (keepalive_idle + keepalive_interval * keepalive_count) * 1000 # Milliseconds
+ sock.setsockopt(socket.IPPROTO_TCP, socket.TCP_USER_TIMEOUT, timeout)
+
try:
async with kvmd.make_session("", "") as kvmd_session:
none_auth_only = await kvmd_session.auth.check()
@@ -357,8 +376,8 @@ class VncServer: # pylint: disable=too-many-instance-attributes
logger.info("Listening VNC on TCP [%s]:%d ...", self.__host, self.__port)
with contextlib.closing(socket.socket(socket.AF_INET6, socket.SOCK_STREAM)) as sock:
- sock.setsockopt(socket.IPPROTO_IPV6, socket.IPV6_V6ONLY, False)
- sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, True)
+ sock.setsockopt(socket.IPPROTO_IPV6, socket.IPV6_V6ONLY, 0)
+ sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
sock.bind((self.__host, self.__port))
server = loop.run_until_complete(asyncio.start_server(