4 This file is part of systemd.
6 Copyright 2010 Lennart Poettering
8 systemd is free software; you can redistribute it and/or modify it
9 under the terms of the GNU Lesser General Public License as published by
10 the Free Software Foundation; either version 2.1 of the License, or
11 (at your option) any later version.
13 systemd is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 Lesser General Public License for more details.
18 You should have received a copy of the GNU Lesser General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
22 typedef struct Socket Socket
;
23 typedef struct SocketPeer SocketPeer
;
27 #include "socket-util.h"
29 typedef enum SocketExecCommand
{
30 SOCKET_EXEC_START_PRE
,
31 SOCKET_EXEC_START_CHOWN
,
32 SOCKET_EXEC_START_POST
,
34 SOCKET_EXEC_STOP_POST
,
35 _SOCKET_EXEC_COMMAND_MAX
,
36 _SOCKET_EXEC_COMMAND_INVALID
= -1
39 typedef enum SocketType
{
46 _SOCKET_FIFO_INVALID
= -1
49 typedef enum SocketResult
{
51 SOCKET_FAILURE_RESOURCES
,
52 SOCKET_FAILURE_TIMEOUT
,
53 SOCKET_FAILURE_EXIT_CODE
,
54 SOCKET_FAILURE_SIGNAL
,
55 SOCKET_FAILURE_CORE_DUMP
,
56 SOCKET_FAILURE_START_LIMIT_HIT
,
57 SOCKET_FAILURE_TRIGGER_LIMIT_HIT
,
58 SOCKET_FAILURE_SERVICE_START_LIMIT_HIT
,
60 _SOCKET_RESULT_INVALID
= -1
63 typedef struct SocketPort
{
71 SocketAddress address
;
73 sd_event_source
*event_source
;
75 LIST_FIELDS(struct SocketPort
, port
);
81 LIST_HEAD(SocketPort
, ports
);
83 Set
*peers_by_address
;
86 unsigned n_connections
;
87 unsigned max_connections
;
88 unsigned max_connections_per_source
;
91 unsigned keep_alive_cnt
;
93 usec_t keep_alive_time
;
94 usec_t keep_alive_interval
;
97 ExecCommand
* exec_command
[_SOCKET_EXEC_COMMAND_MAX
];
98 ExecContext exec_context
;
99 KillContext kill_context
;
100 CGroupContext cgroup_context
;
102 ExecRuntime
*exec_runtime
;
103 DynamicCreds dynamic_creds
;
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
;
112 sd_event_source
*timer_event_source
;
114 ExecCommand
* control_command
;
115 SocketExecCommand control_command_id
;
118 mode_t directory_mode
;
140 /* Only for INET6 sockets: issue IPV6_V6ONLY sockopt */
141 SocketAddressBindIPv6Only bind_ipv6_only
;
145 size_t receive_buffer
;
150 char *bind_to_device
;
151 char *tcp_congestion
;
160 bool selinux_context_from_net
;
164 bool reset_accounting
:1;
168 RateLimit trigger_limit
;
171 SocketPeer
*socket_peer_ref(SocketPeer
*p
);
172 SocketPeer
*socket_peer_unref(SocketPeer
*p
);
173 int socket_acquire_peer(Socket
*s
, int fd
, SocketPeer
**p
);
175 DEFINE_TRIVIAL_CLEANUP_FUNC(SocketPeer
*, socket_peer_unref
);
177 /* Called from the service code when collecting fds */
178 int socket_collect_fds(Socket
*s
, int **fds
);
180 /* Called from the service code when a per-connection service ended */
181 void socket_connection_unref(Socket
*s
);
183 void socket_free_ports(Socket
*s
);
185 int socket_instantiate_service(Socket
*s
);
187 char *socket_fdname(Socket
*s
);
189 extern const UnitVTable socket_vtable
;
191 const char* socket_exec_command_to_string(SocketExecCommand i
) _const_
;
192 SocketExecCommand
socket_exec_command_from_string(const char *s
) _pure_
;
194 const char* socket_result_to_string(SocketResult i
) _const_
;
195 SocketResult
socket_result_from_string(const char *s
) _pure_
;
197 const char* socket_port_type_to_string(SocketPort
*p
) _pure_
;