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Commit | Line | Data |
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db9ecf05 | 1 | /* SPDX-License-Identifier: LGPL-2.1-or-later */ |
87d2c1ff | 2 | |
87d2c1ff | 3 | #include <unistd.h> |
87d2c1ff | 4 | |
8580d1f7 | 5 | #include "sd-daemon.h" |
cf0fbc49 | 6 | #include "sd-messages.h" |
81527be1 | 7 | |
f97b34a6 | 8 | #include "format-util.h" |
89fef990 | 9 | #include "journal-authenticate.h" |
ef63833d | 10 | #include "journald-kmsg.h" |
cf0fbc49 | 11 | #include "journald-server.h" |
35e2e347 | 12 | #include "journald-syslog.h" |
dccca82b | 13 | #include "process-util.h" |
fa6ac760 LP |
14 | #include "sigbus.h" |
15 | ||
87d2c1ff | 16 | int main(int argc, char *argv[]) { |
b1852c48 | 17 | const char *namespace; |
87d2c1ff LP |
18 | Server server; |
19 | int r; | |
20 | ||
b1852c48 LP |
21 | if (argc > 2) { |
22 | log_error("This program takes one or no arguments."); | |
87d2c1ff LP |
23 | return EXIT_FAILURE; |
24 | } | |
25 | ||
b1852c48 LP |
26 | namespace = argc > 1 ? empty_to_null(argv[1]) : NULL; |
27 | ||
6c347d50 LP |
28 | log_set_prohibit_ipc(true); |
29 | log_set_target(LOG_TARGET_AUTO); | |
3eff4208 | 30 | log_set_facility(LOG_SYSLOG); |
87d2c1ff LP |
31 | log_parse_environment(); |
32 | log_open(); | |
33 | ||
34 | umask(0022); | |
35 | ||
fa6ac760 LP |
36 | sigbus_install(); |
37 | ||
b1852c48 | 38 | r = server_init(&server, namespace); |
87d2c1ff LP |
39 | if (r < 0) |
40 | goto finish; | |
41 | ||
3a19f215 | 42 | server_vacuum(&server, false); |
f78273c8 | 43 | server_flush_to_var(&server, true); |
51abe64c | 44 | server_flush_dev_kmsg(&server); |
e6960940 | 45 | |
b1852c48 | 46 | if (server.namespace) |
4c1dea42 | 47 | log_debug("systemd-journald running as PID "PID_FMT" for namespace '%s'.", getpid_cached(), server.namespace); |
b1852c48 LP |
48 | else |
49 | log_debug("systemd-journald running as PID "PID_FMT" for the system.", getpid_cached()); | |
50 | ||
13181942 | 51 | server_driver_message(&server, 0, |
2b044526 | 52 | "MESSAGE_ID=" SD_MESSAGE_JOURNAL_START_STR, |
8a03c9ef ZJS |
53 | LOG_MESSAGE("Journal started"), |
54 | NULL); | |
87d2c1ff | 55 | |
18e758bf FB |
56 | /* Make sure to send the usage message *after* flushing the |
57 | * journal so entries from the runtime journals are ordered | |
58 | * before this message. See #4190 for some details. */ | |
59 | server_space_usage_message(&server, NULL); | |
60 | ||
87d2c1ff | 61 | for (;;) { |
3a43da28 | 62 | usec_t t = USEC_INFINITY, n; |
87d2c1ff | 63 | |
565a9388 | 64 | r = sd_event_get_state(server.event); |
24352691 LP |
65 | if (r < 0) { |
66 | log_error_errno(r, "Failed to get event loop state: %m"); | |
565a9388 | 67 | goto finish; |
24352691 | 68 | } |
565a9388 LP |
69 | if (r == SD_EVENT_FINISHED) |
70 | break; | |
71 | ||
fb0951b0 | 72 | n = now(CLOCK_REALTIME); |
89fef990 | 73 | |
fb0951b0 | 74 | if (server.max_retention_usec > 0 && server.oldest_file_usec > 0) { |
89fef990 | 75 | |
fb0951b0 LP |
76 | /* The retention time is reached, so let's vacuum! */ |
77 | if (server.oldest_file_usec + server.max_retention_usec < n) { | |
78 | log_info("Retention time reached."); | |
79 | server_rotate(&server); | |
3a19f215 | 80 | server_vacuum(&server, false); |
fb0951b0 LP |
81 | continue; |
82 | } | |
89fef990 | 83 | |
fb0951b0 | 84 | /* Calculate when to rotate the next time */ |
f9a810be | 85 | t = server.oldest_file_usec + server.max_retention_usec - n; |
fb0951b0 LP |
86 | } |
87 | ||
349cc4a5 | 88 | #if HAVE_GCRYPT |
fb0951b0 LP |
89 | if (server.system_journal) { |
90 | usec_t u; | |
91 | ||
92 | if (journal_file_next_evolve_usec(server.system_journal, &u)) { | |
93 | if (n >= u) | |
94 | t = 0; | |
95 | else | |
f9a810be | 96 | t = MIN(t, u - n); |
fb0951b0 LP |
97 | } |
98 | } | |
89fef990 | 99 | #endif |
89fef990 | 100 | |
f9a810be | 101 | r = sd_event_run(server.event, t); |
87d2c1ff | 102 | if (r < 0) { |
da927ba9 | 103 | log_error_errno(r, "Failed to run event loop: %m"); |
87d2c1ff | 104 | goto finish; |
89fef990 | 105 | } |
87d2c1ff | 106 | |
99add6fd | 107 | server_maybe_append_tags(&server); |
178cc770 | 108 | server_maybe_warn_forward_syslog_missed(&server); |
87d2c1ff LP |
109 | } |
110 | ||
b1852c48 | 111 | if (server.namespace) |
4c1dea42 | 112 | log_debug("systemd-journald stopped as PID "PID_FMT" for namespace '%s'.", getpid_cached(), server.namespace); |
b1852c48 LP |
113 | else |
114 | log_debug("systemd-journald stopped as PID "PID_FMT" for the system.", getpid_cached()); | |
115 | ||
13181942 | 116 | server_driver_message(&server, 0, |
2b044526 | 117 | "MESSAGE_ID=" SD_MESSAGE_JOURNAL_STOP_STR, |
8a03c9ef ZJS |
118 | LOG_MESSAGE("Journal stopped"), |
119 | NULL); | |
fe652127 | 120 | |
87d2c1ff | 121 | finish: |
87d2c1ff LP |
122 | server_done(&server); |
123 | ||
124 | return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; | |
125 | } |