1 /* SPDX-License-Identifier: LGPL-2.1+ */
4 typedef struct Socket Socket
;
5 typedef struct SocketPeer SocketPeer
;
9 #include "socket-util.h"
12 typedef enum SocketExecCommand
{
13 SOCKET_EXEC_START_PRE
,
14 SOCKET_EXEC_START_CHOWN
,
15 SOCKET_EXEC_START_POST
,
17 SOCKET_EXEC_STOP_POST
,
18 _SOCKET_EXEC_COMMAND_MAX
,
19 _SOCKET_EXEC_COMMAND_INVALID
= -1
22 typedef enum SocketType
{
29 _SOCKET_TYPE_INVALID
= -1
32 typedef enum SocketResult
{
34 SOCKET_FAILURE_RESOURCES
,
35 SOCKET_FAILURE_TIMEOUT
,
36 SOCKET_FAILURE_EXIT_CODE
,
37 SOCKET_FAILURE_SIGNAL
,
38 SOCKET_FAILURE_CORE_DUMP
,
39 SOCKET_FAILURE_START_LIMIT_HIT
,
40 SOCKET_FAILURE_TRIGGER_LIMIT_HIT
,
41 SOCKET_FAILURE_SERVICE_START_LIMIT_HIT
,
43 _SOCKET_RESULT_INVALID
= -1
46 typedef struct SocketPort
{
52 size_t n_auxiliary_fds
;
54 SocketAddress address
;
56 sd_event_source
*event_source
;
58 LIST_FIELDS(struct SocketPort
, port
);
64 LIST_HEAD(SocketPort
, ports
);
66 Set
*peers_by_address
;
69 unsigned n_connections
;
71 unsigned max_connections
;
72 unsigned max_connections_per_source
;
75 unsigned keep_alive_cnt
;
77 usec_t keep_alive_time
;
78 usec_t keep_alive_interval
;
81 ExecCommand
* exec_command
[_SOCKET_EXEC_COMMAND_MAX
];
82 ExecContext exec_context
;
83 KillContext kill_context
;
84 CGroupContext cgroup_context
;
86 ExecRuntime
*exec_runtime
;
87 DynamicCreds dynamic_creds
;
89 /* For Accept=no sockets refers to the one service we'll
90 * activate. For Accept=yes sockets is either NULL, or filled
91 * to refer to the next service we spawn. */
94 SocketState state
, deserialized_state
;
96 sd_event_source
*timer_event_source
;
98 ExecCommand
* control_command
;
99 SocketExecCommand control_command_id
;
102 mode_t directory_mode
;
106 SocketResult clean_result
;
127 /* Only for INET6 sockets: issue IPV6_V6ONLY sockopt */
128 SocketAddressBindIPv6Only bind_ipv6_only
;
132 size_t receive_buffer
;
137 char *bind_to_device
;
138 char *tcp_congestion
;
147 bool selinux_context_from_net
;
153 RateLimit trigger_limit
;
156 SocketPeer
*socket_peer_ref(SocketPeer
*p
);
157 SocketPeer
*socket_peer_unref(SocketPeer
*p
);
158 int socket_acquire_peer(Socket
*s
, int fd
, SocketPeer
**p
);
160 DEFINE_TRIVIAL_CLEANUP_FUNC(SocketPeer
*, socket_peer_unref
);
162 /* Called from the service code when collecting fds */
163 int socket_collect_fds(Socket
*s
, int **fds
);
165 /* Called from the service code when a per-connection service ended */
166 void socket_connection_unref(Socket
*s
);
168 void socket_free_ports(Socket
*s
);
170 int socket_load_service_unit(Socket
*s
, int cfd
, Unit
**ret
);
172 char *socket_fdname(Socket
*s
);
174 extern const UnitVTable socket_vtable
;
176 const char* socket_exec_command_to_string(SocketExecCommand i
) _const_
;
177 SocketExecCommand
socket_exec_command_from_string(const char *s
) _pure_
;
179 const char* socket_result_to_string(SocketResult i
) _const_
;
180 SocketResult
socket_result_from_string(const char *s
) _pure_
;
182 const char* socket_port_type_to_string(SocketPort
*p
) _pure_
;
183 SocketType
socket_port_type_from_string(const char *p
) _pure_
;
185 DEFINE_CAST(SOCKET
, Socket
);