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;
106 ExecCommand* exec_command[_SOCKET_EXEC_COMMAND_MAX];
107 ExecContext exec_context;
108 KillContext kill_context;
109 CGroupContext cgroup_context;
110 ExecRuntime *exec_runtime;
112 /* For Accept=no sockets refers to the one service we'll
113 activate. For Accept=yes sockets is either NULL, or filled
114 when the next service we spawn. */
117 SocketState state, deserialized_state;
119 sd_event_source *timer_event_source;
121 ExecCommand* control_command;
122 SocketExecCommand control_command_id;
125 mode_t directory_mode;
143 /* Only for INET6 sockets: issue IPV6_V6ONLY sockopt */
144 SocketAddressBindIPv6Only bind_ipv6_only;
148 size_t receive_buffer;
153 char *bind_to_device;
154 char *tcp_congestion;
166 /* Called from the service code when collecting fds */
167 int socket_collect_fds(Socket *s, int **fds, unsigned *n_fds);
169 /* Called from the service code when a per-connection service ended */
170 void socket_connection_unref(Socket *s);
172 void socket_free_ports(Socket *s);
174 extern const UnitVTable socket_vtable;
176 const char* socket_state_to_string(SocketState i) _const_;
177 SocketState socket_state_from_string(const char *s) _pure_;
179 const char* socket_exec_command_to_string(SocketExecCommand i) _const_;
180 SocketExecCommand socket_exec_command_from_string(const char *s) _pure_;
182 const char* socket_result_to_string(SocketResult i) _const_;
183 SocketResult socket_result_from_string(const char *s) _pure_;
185 const char* socket_port_type_to_string(SocketPort *p) _pure_;
187 int socket_instantiate_service(Socket *s);