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,
75 SOCKET_FAILURE_SERVICE_FAILED_PERMANENT,
77 _SOCKET_RESULT_INVALID = -1
80 typedef struct SocketPort {
84 SocketAddress address;
88 LIST_FIELDS(struct SocketPort, port);
94 LIST_HEAD(SocketPort, ports);
97 unsigned n_connections;
98 unsigned max_connections;
103 ExecCommand* exec_command[_SOCKET_EXEC_COMMAND_MAX];
104 ExecContext exec_context;
106 /* For Accept=no sockets refers to the one service we'll
107 activate. For Accept=yes sockets is either NULL, or filled
108 when the next service we spawn. */
111 SocketState state, deserialized_state;
115 ExecCommand* control_command;
116 SocketExecCommand control_command_id;
119 mode_t directory_mode;
135 size_t receive_buffer;
140 char *bind_to_device;
141 char *tcp_congestion;
145 /* Only for INET6 sockets: issue IPV6_V6ONLY sockopt */
146 SocketAddressBindIPv6Only bind_ipv6_only;
149 /* Called from the service code when collecting fds */
150 int socket_collect_fds(Socket *s, int **fds, unsigned *n_fds);
152 /* Called from the service when it shut down */
153 void socket_notify_service_dead(Socket *s, bool failed_permanent);
155 /* Called from the mount code figure out if a mount is a dependency of
156 * any of the sockets of this socket */
157 int socket_add_one_mount_link(Socket *s, Mount *m);
159 /* Called from the service code when a per-connection service ended */
160 void socket_connection_unref(Socket *s);
162 extern const UnitVTable socket_vtable;
164 const char* socket_state_to_string(SocketState i);
165 SocketState socket_state_from_string(const char *s);
167 const char* socket_exec_command_to_string(SocketExecCommand i);
168 SocketExecCommand socket_exec_command_from_string(const char *s);
170 const char* socket_result_to_string(SocketResult i);
171 SocketResult socket_result_from_string(const char *s);