1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
6 This file is part of systemd.
8 Copyright 2010 Lennart Poettering
10 systemd is free software; you can redistribute it and/or modify it
11 under the terms of the GNU Lesser General Public License as published by
12 the Free Software Foundation; either version 2.1 of the License, or
13 (at your option) any later version.
15 systemd is distributed in the hope that it will be useful, but
16 WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 Lesser General Public License for more details.
20 You should have received a copy of the GNU Lesser General Public License
21 along with systemd; If not, see <http://www.gnu.org/licenses/>.
24 typedef struct Socket Socket;
28 #include "socket-util.h"
32 typedef enum SocketState {
40 SOCKET_STOP_PRE_SIGTERM,
41 SOCKET_STOP_PRE_SIGKILL,
47 _SOCKET_STATE_INVALID = -1
50 typedef enum SocketExecCommand {
51 SOCKET_EXEC_START_PRE,
52 SOCKET_EXEC_START_CHOWN,
53 SOCKET_EXEC_START_POST,
55 SOCKET_EXEC_STOP_POST,
56 _SOCKET_EXEC_COMMAND_MAX,
57 _SOCKET_EXEC_COMMAND_INVALID = -1
60 typedef enum SocketType {
66 _SOCKET_FIFO_INVALID = -1
69 typedef enum SocketResult {
71 SOCKET_FAILURE_RESOURCES,
72 SOCKET_FAILURE_TIMEOUT,
73 SOCKET_FAILURE_EXIT_CODE,
74 SOCKET_FAILURE_SIGNAL,
75 SOCKET_FAILURE_CORE_DUMP,
76 SOCKET_FAILURE_SERVICE_FAILED_PERMANENT,
78 _SOCKET_RESULT_INVALID = -1
81 typedef struct SocketPort {
87 SocketAddress address;
89 sd_event_source *event_source;
91 LIST_FIELDS(struct SocketPort, port);
97 LIST_HEAD(SocketPort, ports);
100 unsigned n_connections;
101 unsigned max_connections;
104 unsigned keep_alive_cnt;
106 usec_t keep_alive_time;
107 usec_t keep_alive_interval;
110 ExecCommand* exec_command[_SOCKET_EXEC_COMMAND_MAX];
111 ExecContext exec_context;
112 KillContext kill_context;
113 CGroupContext cgroup_context;
114 ExecRuntime *exec_runtime;
116 /* For Accept=no sockets refers to the one service we'll
117 activate. For Accept=yes sockets is either NULL, or filled
118 when the next service we spawn. */
121 SocketState state, deserialized_state;
123 sd_event_source *timer_event_source;
125 ExecCommand* control_command;
126 SocketExecCommand control_command_id;
129 mode_t directory_mode;
148 /* Only for INET6 sockets: issue IPV6_V6ONLY sockopt */
149 SocketAddressBindIPv6Only bind_ipv6_only;
153 size_t receive_buffer;
158 char *bind_to_device;
159 char *tcp_congestion;
168 bool selinux_context_from_net;
173 /* Called from the service code when collecting fds */
174 int socket_collect_fds(Socket *s, int **fds, unsigned *n_fds);
176 /* Called from the service code when a per-connection service ended */
177 void socket_connection_unref(Socket *s);
179 void socket_free_ports(Socket *s);
181 extern const UnitVTable socket_vtable;
183 const char* socket_state_to_string(SocketState i) _const_;
184 SocketState socket_state_from_string(const char *s) _pure_;
186 const char* socket_exec_command_to_string(SocketExecCommand i) _const_;
187 SocketExecCommand socket_exec_command_from_string(const char *s) _pure_;
189 const char* socket_result_to_string(SocketResult i) _const_;
190 SocketResult socket_result_from_string(const char *s) _pure_;
192 const char* socket_port_type_to_string(SocketPort *p) _pure_;
194 int socket_instantiate_service(Socket *s);