1 /*-*- Mode: C; c-basic-offset: 8 -*-*/
7 This file is part of systemd.
9 Copyright 2010 Lennart Poettering
11 systemd is free software; you can redistribute it and/or modify it
12 under the terms of the GNU General Public License as published by
13 the Free Software Foundation; either version 2 of the License, or
14 (at your option) any later version.
16 systemd is distributed in the hope that it will be useful, but
17 WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 General Public License for more details.
21 You should have received a copy of the GNU General Public License
22 along with systemd; If not, see <http://www.gnu.org/licenses/>.
25 typedef struct Socket Socket;
29 #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 {
62 _SOCKET_FIFO_INVALID = -1
65 typedef struct SocketPort {
69 SocketAddress address;
73 LIST_FIELDS(struct SocketPort, port);
79 LIST_HEAD(SocketPort, ports);
84 ExecCommand* exec_command[_SOCKET_EXEC_COMMAND_MAX];
85 ExecContext exec_context;
87 /* For Accept=no sockets refers to the one service we'll
88 activate. For Accept=yes sockets is either NULL, or filled
89 when the next service we spawn. */
92 SocketState state, deserialized_state;
94 ExecCommand* control_command;
95 SocketExecCommand control_command_id;
100 unsigned n_connections;
101 unsigned max_connections;
109 size_t receive_buffer;
116 char *bind_to_device;
117 char *tcp_congestion;
119 /* Only for INET6 sockets: issue IPV6_V6ONLY sockopt */
120 SocketAddressBindIPv6Only bind_ipv6_only;
122 mode_t directory_mode;
126 /* Called from the service code when collecting fds */
127 int socket_collect_fds(Socket *s, int **fds, unsigned *n_fds);
129 /* Called from the service when it shut down */
130 void socket_notify_service_dead(Socket *s);
132 /* Called from the mount code figure out if a mount is a dependency of
133 * any of the sockets of this socket */
134 int socket_add_one_mount_link(Socket *s, Mount *m);
136 /* Called from the service code when a per-connection service ended */
137 void socket_connection_unref(Socket *s);
139 extern const UnitVTable socket_vtable;
141 const char* socket_state_to_string(SocketState i);
142 SocketState socket_state_from_string(const char *s);
144 const char* socket_exec_command_to_string(SocketExecCommand i);
145 SocketExecCommand socket_exec_command_from_string(const char *s);