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 {
83 SocketAddress address;
87 LIST_FIELDS(struct SocketPort, port);
93 LIST_HEAD(SocketPort, ports);
96 unsigned n_connections;
97 unsigned max_connections;
102 ExecCommand* exec_command[_SOCKET_EXEC_COMMAND_MAX];
103 ExecContext exec_context;
104 KillContext kill_context;
105 CGroupContext cgroup_context;
107 /* For Accept=no sockets refers to the one service we'll
108 activate. For Accept=yes sockets is either NULL, or filled
109 when the next service we spawn. */
112 SocketState state, deserialized_state;
116 ExecCommand* control_command;
117 SocketExecCommand control_command_id;
120 mode_t directory_mode;
135 /* Only for INET6 sockets: issue IPV6_V6ONLY sockopt */
136 SocketAddressBindIPv6Only bind_ipv6_only;
140 size_t receive_buffer;
145 char *bind_to_device;
146 char *tcp_congestion;
156 /* Called from the service code when collecting fds */
157 int socket_collect_fds(Socket *s, int **fds, unsigned *n_fds);
159 /* Called from the service code when a per-connection service ended */
160 void socket_connection_unref(Socket *s);
162 void socket_free_ports(Socket *s);
164 extern const UnitVTable socket_vtable;
166 const char* socket_state_to_string(SocketState i) _const_;
167 SocketState socket_state_from_string(const char *s) _pure_;
169 const char* socket_exec_command_to_string(SocketExecCommand i) _const_;
170 SocketExecCommand socket_exec_command_from_string(const char *s) _pure_;
172 const char* socket_result_to_string(SocketResult i) _const_;
173 SocketResult socket_result_from_string(const char *s) _pure_;
175 const char* socket_port_type_to_string(SocketPort *p) _pure_;