4 This file is part of systemd.
6 Copyright 2010 Lennart Poettering
8 systemd is free software; you can redistribute it and/or modify it
9 under the terms of the GNU Lesser General Public License as published by
10 the Free Software Foundation; either version 2.1 of the License, or
11 (at your option) any later version.
13 systemd is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 Lesser General Public License for more details.
18 You should have received a copy of the GNU Lesser General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
22 typedef struct Socket Socket
;
26 #include "socket-util.h"
28 typedef enum SocketExecCommand
{
29 SOCKET_EXEC_START_PRE
,
30 SOCKET_EXEC_START_CHOWN
,
31 SOCKET_EXEC_START_POST
,
33 SOCKET_EXEC_STOP_POST
,
34 _SOCKET_EXEC_COMMAND_MAX
,
35 _SOCKET_EXEC_COMMAND_INVALID
= -1
38 typedef enum SocketType
{
45 _SOCKET_FIFO_INVALID
= -1
48 typedef enum SocketResult
{
50 SOCKET_FAILURE_RESOURCES
,
51 SOCKET_FAILURE_TIMEOUT
,
52 SOCKET_FAILURE_EXIT_CODE
,
53 SOCKET_FAILURE_SIGNAL
,
54 SOCKET_FAILURE_CORE_DUMP
,
55 SOCKET_FAILURE_TRIGGER_LIMIT_HIT
,
56 SOCKET_FAILURE_SERVICE_START_LIMIT_HIT
,
58 _SOCKET_RESULT_INVALID
= -1
61 typedef struct SocketPort
{
69 SocketAddress address
;
71 sd_event_source
*event_source
;
73 LIST_FIELDS(struct SocketPort
, port
);
79 LIST_HEAD(SocketPort
, ports
);
82 unsigned n_connections
;
83 unsigned max_connections
;
86 unsigned keep_alive_cnt
;
88 usec_t keep_alive_time
;
89 usec_t keep_alive_interval
;
92 ExecCommand
* exec_command
[_SOCKET_EXEC_COMMAND_MAX
];
93 ExecContext exec_context
;
94 KillContext kill_context
;
95 CGroupContext cgroup_context
;
96 ExecRuntime
*exec_runtime
;
98 /* For Accept=no sockets refers to the one service we'll
99 activate. For Accept=yes sockets is either NULL, or filled
100 when the next service we spawn. */
103 SocketState state
, deserialized_state
;
105 sd_event_source
*timer_event_source
;
107 ExecCommand
* control_command
;
108 SocketExecCommand control_command_id
;
111 mode_t directory_mode
;
133 /* Only for INET6 sockets: issue IPV6_V6ONLY sockopt */
134 SocketAddressBindIPv6Only bind_ipv6_only
;
138 size_t receive_buffer
;
143 char *bind_to_device
;
144 char *tcp_congestion
;
153 bool selinux_context_from_net
;
157 bool reset_cpu_usage
:1;
161 RateLimit trigger_limit
;
164 /* Called from the service code when collecting fds */
165 int socket_collect_fds(Socket
*s
, int **fds
);
167 /* Called from the service code when a per-connection service ended */
168 void socket_connection_unref(Socket
*s
);
170 void socket_free_ports(Socket
*s
);
172 int socket_instantiate_service(Socket
*s
);
174 char *socket_fdname(Socket
*s
);
176 extern const UnitVTable socket_vtable
;
178 const char* socket_exec_command_to_string(SocketExecCommand i
) _const_
;
179 SocketExecCommand
socket_exec_command_from_string(const char *s
) _pure_
;
181 const char* socket_result_to_string(SocketResult i
) _const_
;
182 SocketResult
socket_result_from_string(const char *s
) _pure_
;
184 const char* socket_port_type_to_string(SocketPort
*p
) _pure_
;