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 {
39 SOCKET_STOP_PRE_SIGTERM,
40 SOCKET_STOP_PRE_SIGKILL,
46 _SOCKET_STATE_INVALID = -1
49 typedef enum SocketExecCommand {
50 SOCKET_EXEC_START_PRE,
51 SOCKET_EXEC_START_POST,
53 SOCKET_EXEC_STOP_POST,
54 _SOCKET_EXEC_COMMAND_MAX,
55 _SOCKET_EXEC_COMMAND_INVALID = -1
58 typedef enum SocketType {
64 _SOCKET_FIFO_INVALID = -1
67 typedef enum SocketResult {
69 SOCKET_FAILURE_RESOURCES,
70 SOCKET_FAILURE_TIMEOUT,
71 SOCKET_FAILURE_EXIT_CODE,
72 SOCKET_FAILURE_SIGNAL,
73 SOCKET_FAILURE_CORE_DUMP,
74 SOCKET_FAILURE_SERVICE_FAILED_PERMANENT,
76 _SOCKET_RESULT_INVALID = -1
79 typedef struct SocketPort {
85 SocketAddress address;
87 sd_event_source *event_source;
89 LIST_FIELDS(struct SocketPort, port);
95 LIST_HEAD(SocketPort, ports);
98 unsigned n_connections;
99 unsigned max_connections;
104 ExecCommand* exec_command[_SOCKET_EXEC_COMMAND_MAX];
105 ExecContext exec_context;
106 KillContext kill_context;
107 CGroupContext cgroup_context;
109 /* For Accept=no sockets refers to the one service we'll
110 activate. For Accept=yes sockets is either NULL, or filled
111 when the next service we spawn. */
114 SocketState state, deserialized_state;
116 sd_event_source *timer_event_source;
118 ExecCommand* control_command;
119 SocketExecCommand control_command_id;
122 mode_t directory_mode;
137 /* Only for INET6 sockets: issue IPV6_V6ONLY sockopt */
138 SocketAddressBindIPv6Only bind_ipv6_only;
142 size_t receive_buffer;
147 char *bind_to_device;
148 char *tcp_congestion;
158 /* Called from the service code when collecting fds */
159 int socket_collect_fds(Socket *s, int **fds, unsigned *n_fds);
161 /* Called from the service code when a per-connection service ended */
162 void socket_connection_unref(Socket *s);
164 void socket_free_ports(Socket *s);
166 extern const UnitVTable socket_vtable;
168 const char* socket_state_to_string(SocketState i) _const_;
169 SocketState socket_state_from_string(const char *s) _pure_;
171 const char* socket_exec_command_to_string(SocketExecCommand i) _const_;
172 SocketExecCommand socket_exec_command_from_string(const char *s) _pure_;
174 const char* socket_result_to_string(SocketResult i) _const_;
175 SocketResult socket_result_from_string(const char *s) _pure_;
177 const char* socket_port_type_to_string(SocketPort *p) _pure_;