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03467c88 | 1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
5cb5a6ff | 2 | |
c2f1db8f | 3 | #pragma once |
5cb5a6ff | 4 | |
a7334b09 LP |
5 | /*** |
6 | This file is part of systemd. | |
7 | ||
8 | Copyright 2010 Lennart Poettering | |
9 | ||
10 | systemd is free software; you can redistribute it and/or modify it | |
5430f7f2 LP |
11 | under the terms of the GNU Lesser General Public License as published by |
12 | the Free Software Foundation; either version 2.1 of the License, or | |
a7334b09 LP |
13 | (at your option) any later version. |
14 | ||
15 | systemd is distributed in the hope that it will be useful, but | |
16 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
5430f7f2 | 18 | Lesser General Public License for more details. |
a7334b09 | 19 | |
5430f7f2 | 20 | You should have received a copy of the GNU Lesser General Public License |
a7334b09 LP |
21 | along with systemd; If not, see <http://www.gnu.org/licenses/>. |
22 | ***/ | |
23 | ||
5cb5a6ff LP |
24 | typedef struct Socket Socket; |
25 | ||
acbb0225 | 26 | #include "manager.h" |
87f0e418 | 27 | #include "unit.h" |
542563ba | 28 | #include "socket-util.h" |
6e2ef85b | 29 | #include "mount.h" |
57020a3a | 30 | #include "service.h" |
5cb5a6ff LP |
31 | |
32 | typedef enum SocketState { | |
33 | SOCKET_DEAD, | |
34 | SOCKET_START_PRE, | |
3900e5fd | 35 | SOCKET_START_CHOWN, |
5cb5a6ff LP |
36 | SOCKET_START_POST, |
37 | SOCKET_LISTENING, | |
38 | SOCKET_RUNNING, | |
39 | SOCKET_STOP_PRE, | |
034c6ed7 LP |
40 | SOCKET_STOP_PRE_SIGTERM, |
41 | SOCKET_STOP_PRE_SIGKILL, | |
5cb5a6ff | 42 | SOCKET_STOP_POST, |
80876c20 LP |
43 | SOCKET_FINAL_SIGTERM, |
44 | SOCKET_FINAL_SIGKILL, | |
fdf20a31 | 45 | SOCKET_FAILED, |
e537352b LP |
46 | _SOCKET_STATE_MAX, |
47 | _SOCKET_STATE_INVALID = -1 | |
5cb5a6ff LP |
48 | } SocketState; |
49 | ||
50 | typedef enum SocketExecCommand { | |
51 | SOCKET_EXEC_START_PRE, | |
3900e5fd | 52 | SOCKET_EXEC_START_CHOWN, |
5cb5a6ff LP |
53 | SOCKET_EXEC_START_POST, |
54 | SOCKET_EXEC_STOP_PRE, | |
55 | SOCKET_EXEC_STOP_POST, | |
e537352b LP |
56 | _SOCKET_EXEC_COMMAND_MAX, |
57 | _SOCKET_EXEC_COMMAND_INVALID = -1 | |
5cb5a6ff LP |
58 | } SocketExecCommand; |
59 | ||
542563ba LP |
60 | typedef enum SocketType { |
61 | SOCKET_SOCKET, | |
e537352b | 62 | SOCKET_FIFO, |
b0a3f2bc | 63 | SOCKET_SPECIAL, |
916abb21 | 64 | SOCKET_MQUEUE, |
e537352b LP |
65 | _SOCKET_FIFO_MAX, |
66 | _SOCKET_FIFO_INVALID = -1 | |
542563ba LP |
67 | } SocketType; |
68 | ||
cfc4eb4c LP |
69 | typedef enum SocketResult { |
70 | SOCKET_SUCCESS, | |
71 | SOCKET_FAILURE_RESOURCES, | |
72 | SOCKET_FAILURE_TIMEOUT, | |
73 | SOCKET_FAILURE_EXIT_CODE, | |
74 | SOCKET_FAILURE_SIGNAL, | |
75 | SOCKET_FAILURE_CORE_DUMP, | |
6bda96a0 | 76 | SOCKET_FAILURE_SERVICE_FAILED_PERMANENT, |
cfc4eb4c LP |
77 | _SOCKET_RESULT_MAX, |
78 | _SOCKET_RESULT_INVALID = -1 | |
79 | } SocketResult; | |
80 | ||
01f78473 | 81 | typedef struct SocketPort { |
718db961 LP |
82 | Socket *socket; |
83 | ||
542563ba | 84 | SocketType type; |
9d58f1db | 85 | int fd; |
542563ba LP |
86 | |
87 | SocketAddress address; | |
88 | char *path; | |
718db961 | 89 | sd_event_source *event_source; |
542563ba | 90 | |
01f78473 LP |
91 | LIST_FIELDS(struct SocketPort, port); |
92 | } SocketPort; | |
542563ba | 93 | |
5cb5a6ff | 94 | struct Socket { |
ac155bb8 | 95 | Unit meta; |
5cb5a6ff | 96 | |
542563ba LP |
97 | LIST_HEAD(SocketPort, ports); |
98 | ||
7fab9d01 LP |
99 | unsigned n_accepted; |
100 | unsigned n_connections; | |
101 | unsigned max_connections; | |
102 | ||
542563ba | 103 | unsigned backlog; |
209e9dcd | 104 | unsigned keep_alive_cnt; |
034c6ed7 | 105 | usec_t timeout_usec; |
209e9dcd SS |
106 | usec_t keep_alive_time; |
107 | usec_t keep_alive_interval; | |
cc567c9b | 108 | usec_t defer_accept; |
034c6ed7 | 109 | |
e537352b | 110 | ExecCommand* exec_command[_SOCKET_EXEC_COMMAND_MAX]; |
5cb5a6ff | 111 | ExecContext exec_context; |
4819ff03 | 112 | KillContext kill_context; |
4ad49000 | 113 | CGroupContext cgroup_context; |
613b411c | 114 | ExecRuntime *exec_runtime; |
5cb5a6ff | 115 | |
b15bdda8 LP |
116 | /* For Accept=no sockets refers to the one service we'll |
117 | activate. For Accept=yes sockets is either NULL, or filled | |
118 | when the next service we spawn. */ | |
57020a3a | 119 | UnitRef service; |
034c6ed7 | 120 | |
a16e1123 | 121 | SocketState state, deserialized_state; |
034c6ed7 | 122 | |
718db961 | 123 | sd_event_source *timer_event_source; |
7fab9d01 | 124 | |
034c6ed7 | 125 | ExecCommand* control_command; |
a16e1123 | 126 | SocketExecCommand control_command_id; |
5cb5a6ff LP |
127 | pid_t control_pid; |
128 | ||
7fab9d01 LP |
129 | mode_t directory_mode; |
130 | mode_t socket_mode; | |
4f2d528d | 131 | |
cfc4eb4c | 132 | SocketResult result; |
7fab9d01 | 133 | |
811ba7a0 LP |
134 | char **symlinks; |
135 | ||
7fab9d01 | 136 | bool accept; |
bd1fe7c7 | 137 | bool remove_on_stop; |
4fd5948e LP |
138 | |
139 | /* Socket options */ | |
140 | bool keep_alive; | |
4427c3f4 | 141 | bool no_delay; |
7fab9d01 | 142 | bool free_bind; |
6b6d2dee | 143 | bool transparent; |
ec6370a2 | 144 | bool broadcast; |
d68af586 | 145 | bool pass_cred; |
54ecda32 | 146 | bool pass_sec; |
68667801 ZJS |
147 | |
148 | /* Only for INET6 sockets: issue IPV6_V6ONLY sockopt */ | |
149 | SocketAddressBindIPv6Only bind_ipv6_only; | |
150 | ||
4fd5948e | 151 | int priority; |
7fab9d01 | 152 | int mark; |
4fd5948e LP |
153 | size_t receive_buffer; |
154 | size_t send_buffer; | |
155 | int ip_tos; | |
156 | int ip_ttl; | |
157 | size_t pipe_size; | |
4fd5948e | 158 | char *bind_to_device; |
cebf8b20 | 159 | char *tcp_congestion; |
718db961 | 160 | bool reuse_port; |
916abb21 LP |
161 | long mq_maxmsg; |
162 | long mq_msgsize; | |
57020a3a | 163 | |
0eb59ccf AK |
164 | char *smack; |
165 | char *smack_ip_in; | |
166 | char *smack_ip_out; | |
3900e5fd | 167 | |
16115b0a MS |
168 | bool selinux_context_from_net; |
169 | ||
3900e5fd | 170 | char *user, *group; |
5cb5a6ff LP |
171 | }; |
172 | ||
44d8db9e LP |
173 | /* Called from the service code when collecting fds */ |
174 | int socket_collect_fds(Socket *s, int **fds, unsigned *n_fds); | |
175 | ||
6cf6bbc2 LP |
176 | /* Called from the service code when a per-connection service ended */ |
177 | void socket_connection_unref(Socket *s); | |
178 | ||
74051b9b LP |
179 | void socket_free_ports(Socket *s); |
180 | ||
87f0e418 | 181 | extern const UnitVTable socket_vtable; |
5cb5a6ff | 182 | |
44a6b1b6 ZJS |
183 | const char* socket_state_to_string(SocketState i) _const_; |
184 | SocketState socket_state_from_string(const char *s) _pure_; | |
a16e1123 | 185 | |
44a6b1b6 ZJS |
186 | const char* socket_exec_command_to_string(SocketExecCommand i) _const_; |
187 | SocketExecCommand socket_exec_command_from_string(const char *s) _pure_; | |
a16e1123 | 188 | |
44a6b1b6 ZJS |
189 | const char* socket_result_to_string(SocketResult i) _const_; |
190 | SocketResult socket_result_from_string(const char *s) _pure_; | |
67419600 | 191 | |
44a6b1b6 | 192 | const char* socket_port_type_to_string(SocketPort *p) _pure_; |
8b835fcc ZJS |
193 | |
194 | int socket_instantiate_service(Socket *s); |