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e6960940 LP |
1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
2 | ||
c2f1db8f | 3 | #pragma once |
e6960940 LP |
4 | |
5 | /*** | |
6 | This file is part of systemd. | |
7 | ||
8 | Copyright 2011 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 | |
e6960940 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. |
e6960940 | 19 | |
5430f7f2 | 20 | You should have received a copy of the GNU Lesser General Public License |
e6960940 LP |
21 | along with systemd; If not, see <http://www.gnu.org/licenses/>. |
22 | ***/ | |
23 | ||
e6960940 | 24 | #include <stdbool.h> |
b1bafc00 | 25 | #include <sys/types.h> |
e6960940 | 26 | |
f9a810be | 27 | #include "sd-event.h" |
430f0182 | 28 | |
e22aa3d3 LP |
29 | typedef struct Server Server; |
30 | ||
e6960940 | 31 | #include "hashmap.h" |
430f0182 | 32 | #include "journal-file.h" |
d2bd7630 | 33 | #include "journald-rate-limit.h" |
e22aa3d3 | 34 | #include "journald-stream.h" |
e6960940 LP |
35 | #include "list.h" |
36 | ||
e156d769 LP |
37 | typedef enum Storage { |
38 | STORAGE_AUTO, | |
39 | STORAGE_VOLATILE, | |
205c4d1d | 40 | STORAGE_PERSISTENT, |
e156d769 LP |
41 | STORAGE_NONE, |
42 | _STORAGE_MAX, | |
43 | _STORAGE_INVALID = -1 | |
44 | } Storage; | |
45 | ||
182b858f | 46 | typedef enum SplitMode { |
182b858f | 47 | SPLIT_UID, |
edc3797f | 48 | SPLIT_LOGIN, |
182b858f LP |
49 | SPLIT_NONE, |
50 | _SPLIT_MAX, | |
51 | _SPLIT_INVALID = -1 | |
52 | } SplitMode; | |
53 | ||
e22aa3d3 | 54 | struct Server { |
e6960940 LP |
55 | int syslog_fd; |
56 | int native_fd; | |
57 | int stdout_fd; | |
51abe64c | 58 | int dev_kmsg_fd; |
875c2e22 | 59 | int audit_fd; |
0c24bb23 | 60 | int hostname_fd; |
e22aa3d3 | 61 | int notify_fd; |
e6960940 | 62 | |
f9a810be LP |
63 | sd_event *event; |
64 | ||
65 | sd_event_source *syslog_event_source; | |
66 | sd_event_source *native_event_source; | |
67 | sd_event_source *stdout_event_source; | |
68 | sd_event_source *dev_kmsg_event_source; | |
875c2e22 | 69 | sd_event_source *audit_event_source; |
f9a810be LP |
70 | sd_event_source *sync_event_source; |
71 | sd_event_source *sigusr1_event_source; | |
72 | sd_event_source *sigusr2_event_source; | |
73 | sd_event_source *sigterm_event_source; | |
74 | sd_event_source *sigint_event_source; | |
94b65516 | 75 | sd_event_source *sigrtmin1_event_source; |
0c24bb23 | 76 | sd_event_source *hostname_event_source; |
e22aa3d3 | 77 | sd_event_source *notify_event_source; |
119e9655 | 78 | sd_event_source *watchdog_event_source; |
f9a810be | 79 | |
e6960940 LP |
80 | JournalFile *runtime_journal; |
81 | JournalFile *system_journal; | |
43cf8388 | 82 | OrderedHashmap *user_journals; |
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83 | |
84 | uint64_t seqnum; | |
85 | ||
86 | char *buffer; | |
87 | size_t buffer_size; | |
88 | ||
89 | JournalRateLimit *rate_limit; | |
26687bf8 | 90 | usec_t sync_interval_usec; |
e6960940 LP |
91 | usec_t rate_limit_interval; |
92 | unsigned rate_limit_burst; | |
93 | ||
94 | JournalMetrics runtime_metrics; | |
95 | JournalMetrics system_metrics; | |
96 | ||
97 | bool compress; | |
eb53b74f | 98 | bool seal; |
e6960940 | 99 | |
224f2ee2 LP |
100 | bool forward_to_kmsg; |
101 | bool forward_to_syslog; | |
102 | bool forward_to_console; | |
40b71e89 | 103 | bool forward_to_wall; |
224f2ee2 | 104 | |
178cc770 LP |
105 | unsigned n_forward_syslog_missed; |
106 | usec_t last_warn_forward_syslog_missed; | |
107 | ||
8580d1f7 LP |
108 | uint64_t cached_space_available; |
109 | uint64_t cached_space_limit; | |
110 | usec_t cached_space_timestamp; | |
e6960940 LP |
111 | |
112 | uint64_t var_available_timestamp; | |
113 | ||
fb0951b0 LP |
114 | usec_t max_retention_usec; |
115 | usec_t max_file_usec; | |
116 | usec_t oldest_file_usec; | |
117 | ||
e6960940 | 118 | LIST_HEAD(StdoutStream, stdout_streams); |
e22aa3d3 | 119 | LIST_HEAD(StdoutStream, stdout_streams_notify_queue); |
e6960940 | 120 | unsigned n_stdout_streams; |
0d9243f0 LP |
121 | |
122 | char *tty_path; | |
213ba152 LP |
123 | |
124 | int max_level_store; | |
125 | int max_level_syslog; | |
126 | int max_level_kmsg; | |
127 | int max_level_console; | |
40b71e89 | 128 | int max_level_wall; |
e156d769 LP |
129 | |
130 | Storage storage; | |
182b858f | 131 | SplitMode split_mode; |
51abe64c | 132 | |
16e9f408 LP |
133 | MMapCache *mmap; |
134 | ||
119e9655 | 135 | struct udev *udev; |
cee5e9a7 LP |
136 | |
137 | uint64_t *kernel_seqnum; | |
119e9655 | 138 | bool dev_kmsg_readable:1; |
bdfb9e7f | 139 | |
119e9655 LP |
140 | bool send_watchdog:1; |
141 | bool sent_notify_ready:1; | |
142 | bool sync_scheduled:1; | |
0c24bb23 LP |
143 | |
144 | char machine_id_field[sizeof("_MACHINE_ID=") + 32]; | |
145 | char boot_id_field[sizeof("_BOOT_ID=") + 32]; | |
146 | char *hostname_field; | |
e9174f29 LP |
147 | |
148 | /* Cached cgroup root, so that we don't have to query that all the time */ | |
149 | char *cgroup_root; | |
119e9655 LP |
150 | |
151 | usec_t watchdog_usec; | |
e22aa3d3 | 152 | }; |
e6960940 | 153 | |
8580d1f7 LP |
154 | #define SERVER_MACHINE_ID(s) ((s)->machine_id_field + strlen("_MACHINE_ID=")) |
155 | ||
0a244b8e | 156 | #define N_IOVEC_META_FIELDS 20 |
ef63833d LP |
157 | #define N_IOVEC_KERNEL_FIELDS 64 |
158 | #define N_IOVEC_UDEV_FIELDS 32 | |
704e4fe7 | 159 | #define N_IOVEC_OBJECT_FIELDS 12 |
282c5c4e | 160 | #define N_IOVEC_PAYLOAD_FIELDS 15 |
ef63833d | 161 | |
3b3154df | 162 | void server_dispatch_message(Server *s, struct iovec *iovec, unsigned n, unsigned m, const struct ucred *ucred, const struct timeval *tv, const char *label, size_t label_len, const char *unit_id, int priority, pid_t object_pid); |
8a03c9ef | 163 | void server_driver_message(Server *s, sd_id128_t message_id, const char *format, ...) _printf_(3,0) _sentinel_; |
ef63833d | 164 | |
e6960940 LP |
165 | /* gperf lookup function */ |
166 | const struct ConfigPerfItem* journald_gperf_lookup(const char *key, unsigned length); | |
167 | ||
71a61510 | 168 | int config_parse_storage(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata); |
e156d769 | 169 | |
44a6b1b6 ZJS |
170 | const char *storage_to_string(Storage s) _const_; |
171 | Storage storage_from_string(const char *s) _pure_; | |
182b858f | 172 | |
71a61510 | 173 | int config_parse_split_mode(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata); |
182b858f | 174 | |
44a6b1b6 ZJS |
175 | const char *split_mode_to_string(SplitMode s) _const_; |
176 | SplitMode split_mode_from_string(const char *s) _pure_; | |
d025f1e4 | 177 | |
d025f1e4 ZJS |
178 | int server_init(Server *s); |
179 | void server_done(Server *s); | |
26687bf8 | 180 | void server_sync(Server *s); |
8580d1f7 | 181 | int server_vacuum(Server *s, bool verbose, bool patch_min_use); |
d025f1e4 | 182 | void server_rotate(Server *s); |
d07f7b9e | 183 | int server_schedule_sync(Server *s, int priority); |
d025f1e4 | 184 | int server_flush_to_var(Server *s); |
d025f1e4 | 185 | void server_maybe_append_tags(Server *s); |
8531ae70 | 186 | int server_process_datagram(sd_event_source *es, int fd, uint32_t revents, void *userdata); |