1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
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"
33 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_POST,
54 SOCKET_EXEC_STOP_POST,
55 _SOCKET_EXEC_COMMAND_MAX,
56 _SOCKET_EXEC_COMMAND_INVALID = -1
59 typedef enum SocketType {
65 _SOCKET_FIFO_INVALID = -1
68 typedef enum SocketResult {
70 SOCKET_FAILURE_RESOURCES,
71 SOCKET_FAILURE_TIMEOUT,
72 SOCKET_FAILURE_EXIT_CODE,
73 SOCKET_FAILURE_SIGNAL,
74 SOCKET_FAILURE_CORE_DUMP,
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;
105 /* For Accept=no sockets refers to the one service we'll
106 activate. For Accept=yes sockets is either NULL, or filled
107 when the next service we spawn. */
110 SocketState state, deserialized_state;
114 ExecCommand* control_command;
115 SocketExecCommand control_command_id;
118 mode_t directory_mode;
133 size_t receive_buffer;
138 char *bind_to_device;
139 char *tcp_congestion;
143 /* Only for INET6 sockets: issue IPV6_V6ONLY sockopt */
144 SocketAddressBindIPv6Only bind_ipv6_only;
147 /* Called from the service code when collecting fds */
148 int socket_collect_fds(Socket *s, int **fds, unsigned *n_fds);
150 /* Called from the service when it shut down */
151 void socket_notify_service_dead(Socket *s);
153 /* Called from the mount code figure out if a mount is a dependency of
154 * any of the sockets of this socket */
155 int socket_add_one_mount_link(Socket *s, Mount *m);
157 /* Called from the service code when a per-connection service ended */
158 void socket_connection_unref(Socket *s);
160 extern const UnitVTable socket_vtable;
162 const char* socket_state_to_string(SocketState i);
163 SocketState socket_state_from_string(const char *s);
165 const char* socket_exec_command_to_string(SocketExecCommand i);
166 SocketExecCommand socket_exec_command_from_string(const char *s);
168 const char* socket_result_to_string(SocketResult i);
169 SocketResult socket_result_from_string(const char *s);