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Commit | Line | Data |
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86aa7ba4 LP |
1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
2 | ||
3 | /*** | |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2012 Lennart Poettering | |
7 | ||
8 | systemd is free software; you can redistribute it and/or modify it | |
5430f7f2 LP |
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 | |
86aa7ba4 LP |
11 | (at your option) any later version. |
12 | ||
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 | |
5430f7f2 | 16 | Lesser General Public License for more details. |
86aa7ba4 | 17 | |
5430f7f2 | 18 | You should have received a copy of the GNU Lesser General Public License |
86aa7ba4 LP |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. |
20 | ***/ | |
21 | ||
22 | #include <time.h> | |
23 | #include <assert.h> | |
24 | #include <errno.h> | |
df50185b | 25 | #include <sys/poll.h> |
2a410422 | 26 | #include <sys/socket.h> |
55d7bfc1 | 27 | #include <string.h> |
b6741478 | 28 | #include <fcntl.h> |
86aa7ba4 LP |
29 | |
30 | #include "logs-show.h" | |
31 | #include "log.h" | |
32 | #include "util.h" | |
ba961854 | 33 | #include "utf8.h" |
d99ae53a | 34 | #include "hashmap.h" |
b6741478 | 35 | #include "fileio.h" |
dfb33a97 | 36 | #include "journal-internal.h" |
86aa7ba4 | 37 | |
a6f0104a ZJS |
38 | /* up to three lines (each up to 100 characters), |
39 | or 300 characters, whichever is less */ | |
40 | #define PRINT_LINE_THRESHOLD 3 | |
41 | #define PRINT_CHAR_THRESHOLD 300 | |
42 | ||
08ace05b | 43 | #define JSON_THRESHOLD 4096 |
86aa7ba4 | 44 | |
d4205751 LP |
45 | static int print_catalog(FILE *f, sd_journal *j) { |
46 | int r; | |
47 | _cleanup_free_ char *t = NULL, *z = NULL; | |
48 | ||
49 | ||
50 | r = sd_journal_get_catalog(j, &t); | |
51 | if (r < 0) | |
52 | return r; | |
53 | ||
54 | z = strreplace(strstrip(t), "\n", "\n-- "); | |
55 | if (!z) | |
56 | return log_oom(); | |
57 | ||
58 | fputs("-- ", f); | |
59 | fputs(z, f); | |
60 | fputc('\n', f); | |
61 | ||
62 | return 0; | |
63 | } | |
64 | ||
55d7bfc1 LP |
65 | static int parse_field(const void *data, size_t length, const char *field, char **target, size_t *target_size) { |
66 | size_t fl, nl; | |
67 | void *buf; | |
68 | ||
69 | assert(data); | |
70 | assert(field); | |
71 | assert(target); | |
72 | assert(target_size); | |
73 | ||
74 | fl = strlen(field); | |
75 | if (length < fl) | |
76 | return 0; | |
77 | ||
78 | if (memcmp(data, field, fl)) | |
79 | return 0; | |
80 | ||
81 | nl = length - fl; | |
bf967366 | 82 | buf = malloc(nl+1); |
0d0f0c50 SL |
83 | if (!buf) |
84 | return log_oom(); | |
55d7bfc1 | 85 | |
46b0d922 LP |
86 | memcpy(buf, (const char*) data + fl, nl); |
87 | ((char*)buf)[nl] = 0; | |
88 | ||
6c1e6b98 | 89 | free(*target); |
55d7bfc1 LP |
90 | *target = buf; |
91 | *target_size = nl; | |
92 | ||
93 | return 1; | |
94 | } | |
95 | ||
08ace05b LP |
96 | static bool shall_print(const char *p, size_t l, OutputFlags flags) { |
97 | assert(p); | |
98 | ||
99 | if (flags & OUTPUT_SHOW_ALL) | |
55d7bfc1 LP |
100 | return true; |
101 | ||
a6f0104a | 102 | if (l >= PRINT_CHAR_THRESHOLD) |
55d7bfc1 LP |
103 | return false; |
104 | ||
31f7bf19 | 105 | if (!utf8_is_printable(p, l)) |
55d7bfc1 LP |
106 | return false; |
107 | ||
108 | return true; | |
109 | } | |
110 | ||
00f117a5 | 111 | static bool print_multiline(FILE *f, unsigned prefix, unsigned n_columns, OutputFlags flags, int priority, const char* message, size_t message_len) { |
31f7bf19 ZJS |
112 | const char *color_on = "", *color_off = ""; |
113 | const char *pos, *end; | |
94e0bd7d | 114 | bool ellipsized = false; |
a6f0104a | 115 | int line = 0; |
31f7bf19 ZJS |
116 | |
117 | if (flags & OUTPUT_COLOR) { | |
118 | if (priority <= LOG_ERR) { | |
119 | color_on = ANSI_HIGHLIGHT_RED_ON; | |
120 | color_off = ANSI_HIGHLIGHT_OFF; | |
121 | } else if (priority <= LOG_NOTICE) { | |
122 | color_on = ANSI_HIGHLIGHT_ON; | |
123 | color_off = ANSI_HIGHLIGHT_OFF; | |
124 | } | |
125 | } | |
126 | ||
47d80904 UU |
127 | /* A special case: make sure that we print a newline when |
128 | the message is empty. */ | |
129 | if (message_len == 0) | |
130 | fputs("\n", f); | |
131 | ||
a6f0104a ZJS |
132 | for (pos = message; |
133 | pos < message + message_len; | |
134 | pos = end + 1, line++) { | |
135 | bool continuation = line > 0; | |
136 | bool tail_line; | |
31f7bf19 ZJS |
137 | int len; |
138 | for (end = pos; end < message + message_len && *end != '\n'; end++) | |
139 | ; | |
140 | len = end - pos; | |
141 | assert(len >= 0); | |
142 | ||
2526d626 | 143 | /* We need to figure out when we are showing not-last line, *and* |
a6f0104a ZJS |
144 | * will skip subsequent lines. In that case, we will put the dots |
145 | * at the end of the line, instead of putting dots in the middle | |
146 | * or not at all. | |
147 | */ | |
148 | tail_line = | |
149 | line + 1 == PRINT_LINE_THRESHOLD || | |
2526d626 | 150 | end + 1 >= message + PRINT_CHAR_THRESHOLD; |
a6f0104a ZJS |
151 | |
152 | if (flags & (OUTPUT_FULL_WIDTH | OUTPUT_SHOW_ALL) || | |
153 | (prefix + len + 1 < n_columns && !tail_line)) { | |
31f7bf19 ZJS |
154 | fprintf(f, "%*s%s%.*s%s\n", |
155 | continuation * prefix, "", | |
156 | color_on, len, pos, color_off); | |
a6f0104a ZJS |
157 | continue; |
158 | } | |
31f7bf19 | 159 | |
a6f0104a ZJS |
160 | /* Beyond this point, ellipsization will happen. */ |
161 | ellipsized = true; | |
31f7bf19 | 162 | |
a6f0104a ZJS |
163 | if (prefix < n_columns && n_columns - prefix >= 3) { |
164 | if (n_columns - prefix > (unsigned) len + 3) | |
165 | fprintf(f, "%*s%s%.*s...%s\n", | |
b4b02cbe ZJS |
166 | continuation * prefix, "", |
167 | color_on, len, pos, color_off); | |
a6f0104a ZJS |
168 | else { |
169 | _cleanup_free_ char *e; | |
170 | ||
171 | e = ellipsize_mem(pos, len, n_columns - prefix, | |
172 | tail_line ? 100 : 90); | |
173 | if (!e) | |
174 | fprintf(f, "%*s%s%.*s%s\n", | |
175 | continuation * prefix, "", | |
176 | color_on, len, pos, color_off); | |
177 | else | |
178 | fprintf(f, "%*s%s%s%s\n", | |
179 | continuation * prefix, "", | |
180 | color_on, e, color_off); | |
181 | } | |
182 | } else | |
31f7bf19 ZJS |
183 | fputs("...\n", f); |
184 | ||
a6f0104a ZJS |
185 | if (tail_line) |
186 | break; | |
31f7bf19 | 187 | } |
94e0bd7d ZJS |
188 | |
189 | return ellipsized; | |
31f7bf19 ZJS |
190 | } |
191 | ||
08ace05b LP |
192 | static int output_short( |
193 | FILE *f, | |
194 | sd_journal *j, | |
195 | OutputMode mode, | |
196 | unsigned n_columns, | |
197 | OutputFlags flags) { | |
198 | ||
86aa7ba4 | 199 | int r; |
86aa7ba4 LP |
200 | const void *data; |
201 | size_t length; | |
202 | size_t n = 0; | |
08ace05b | 203 | _cleanup_free_ char *hostname = NULL, *identifier = NULL, *comm = NULL, *pid = NULL, *fake_pid = NULL, *message = NULL, *realtime = NULL, *monotonic = NULL, *priority = NULL; |
49826187 LP |
204 | size_t hostname_len = 0, identifier_len = 0, comm_len = 0, pid_len = 0, fake_pid_len = 0, message_len = 0, realtime_len = 0, monotonic_len = 0, priority_len = 0; |
205 | int p = LOG_INFO; | |
94e0bd7d | 206 | bool ellipsized = false; |
86aa7ba4 | 207 | |
08ace05b | 208 | assert(f); |
86aa7ba4 LP |
209 | assert(j); |
210 | ||
a6f0104a | 211 | /* Set the threshold to one bigger than the actual print |
69ab8088 | 212 | * threshold, so that if the line is actually longer than what |
a6f0104a ZJS |
213 | * we're willing to print, ellipsization will occur. This way |
214 | * we won't output a misleading line without any indication of | |
215 | * truncation. | |
216 | */ | |
217 | sd_journal_set_data_threshold(j, flags & (OUTPUT_SHOW_ALL|OUTPUT_FULL_WIDTH) ? 0 : PRINT_CHAR_THRESHOLD + 1); | |
93b73b06 | 218 | |
a72b6353 | 219 | JOURNAL_FOREACH_DATA_RETVAL(j, data, length, r) { |
55d7bfc1 | 220 | |
49826187 LP |
221 | r = parse_field(data, length, "PRIORITY=", &priority, &priority_len); |
222 | if (r < 0) | |
08ace05b | 223 | return r; |
49826187 LP |
224 | else if (r > 0) |
225 | continue; | |
226 | ||
55d7bfc1 LP |
227 | r = parse_field(data, length, "_HOSTNAME=", &hostname, &hostname_len); |
228 | if (r < 0) | |
08ace05b | 229 | return r; |
55d7bfc1 LP |
230 | else if (r > 0) |
231 | continue; | |
232 | ||
4cd9a9d9 | 233 | r = parse_field(data, length, "SYSLOG_IDENTIFIER=", &identifier, &identifier_len); |
55d7bfc1 | 234 | if (r < 0) |
08ace05b | 235 | return r; |
55d7bfc1 LP |
236 | else if (r > 0) |
237 | continue; | |
238 | ||
239 | r = parse_field(data, length, "_COMM=", &comm, &comm_len); | |
240 | if (r < 0) | |
08ace05b | 241 | return r; |
55d7bfc1 LP |
242 | else if (r > 0) |
243 | continue; | |
244 | ||
245 | r = parse_field(data, length, "_PID=", &pid, &pid_len); | |
246 | if (r < 0) | |
08ace05b | 247 | return r; |
55d7bfc1 LP |
248 | else if (r > 0) |
249 | continue; | |
250 | ||
6c1e6b98 LP |
251 | r = parse_field(data, length, "SYSLOG_PID=", &fake_pid, &fake_pid_len); |
252 | if (r < 0) | |
08ace05b | 253 | return r; |
6c1e6b98 LP |
254 | else if (r > 0) |
255 | continue; | |
256 | ||
bf967366 LP |
257 | r = parse_field(data, length, "_SOURCE_REALTIME_TIMESTAMP=", &realtime, &realtime_len); |
258 | if (r < 0) | |
08ace05b | 259 | return r; |
bf967366 LP |
260 | else if (r > 0) |
261 | continue; | |
262 | ||
263 | r = parse_field(data, length, "_SOURCE_MONOTONIC_TIMESTAMP=", &monotonic, &monotonic_len); | |
264 | if (r < 0) | |
08ace05b | 265 | return r; |
bf967366 LP |
266 | else if (r > 0) |
267 | continue; | |
268 | ||
55d7bfc1 LP |
269 | r = parse_field(data, length, "MESSAGE=", &message, &message_len); |
270 | if (r < 0) | |
08ace05b | 271 | return r; |
55d7bfc1 LP |
272 | } |
273 | ||
a72b6353 ZJS |
274 | if (r < 0) |
275 | return r; | |
276 | ||
08ace05b LP |
277 | if (!message) |
278 | return 0; | |
55d7bfc1 | 279 | |
e8bc0ea2 LP |
280 | if (!(flags & OUTPUT_SHOW_ALL)) |
281 | strip_tab_ansi(&message, &message_len); | |
282 | ||
49826187 LP |
283 | if (priority_len == 1 && *priority >= '0' && *priority <= '7') |
284 | p = *priority - '0'; | |
285 | ||
a6e87e90 | 286 | if (mode == OUTPUT_SHORT_MONOTONIC) { |
67a12205 | 287 | uint64_t t; |
3ebcdf8c LP |
288 | sd_id128_t boot_id; |
289 | ||
bf967366 LP |
290 | r = -ENOENT; |
291 | ||
292 | if (monotonic) | |
293 | r = safe_atou64(monotonic, &t); | |
294 | ||
295 | if (r < 0) | |
3ebcdf8c | 296 | r = sd_journal_get_monotonic_usec(j, &t, &boot_id); |
86aa7ba4 | 297 | |
f647962d MS |
298 | if (r < 0) |
299 | return log_error_errno(r, "Failed to get monotonic timestamp: %m"); | |
67a12205 | 300 | |
08ace05b | 301 | fprintf(f, "[%5llu.%06llu]", |
609e002e LP |
302 | (unsigned long long) (t / USEC_PER_SEC), |
303 | (unsigned long long) (t % USEC_PER_SEC)); | |
3ebcdf8c LP |
304 | |
305 | n += 1 + 5 + 1 + 6 + 1; | |
306 | ||
67a12205 LP |
307 | } else { |
308 | char buf[64]; | |
bf967366 | 309 | uint64_t x; |
67a12205 LP |
310 | time_t t; |
311 | struct tm tm; | |
9fd29044 | 312 | struct tm *(*gettime_r)(const time_t *, struct tm *); |
731a676c | 313 | |
bf967366 | 314 | r = -ENOENT; |
9fd29044 | 315 | gettime_r = (flags & OUTPUT_UTC) ? gmtime_r : localtime_r; |
bf967366 LP |
316 | |
317 | if (realtime) | |
318 | r = safe_atou64(realtime, &x); | |
319 | ||
320 | if (r < 0) | |
321 | r = sd_journal_get_realtime_usec(j, &x); | |
67a12205 | 322 | |
f647962d MS |
323 | if (r < 0) |
324 | return log_error_errno(r, "Failed to get realtime timestamp: %m"); | |
67a12205 | 325 | |
bf967366 | 326 | t = (time_t) (x / USEC_PER_SEC); |
f02d8367 ZJS |
327 | |
328 | switch(mode) { | |
329 | case OUTPUT_SHORT_ISO: | |
9fd29044 | 330 | r = strftime(buf, sizeof(buf), "%Y-%m-%dT%H:%M:%S%z", gettime_r(&t, &tm)); |
f02d8367 ZJS |
331 | break; |
332 | case OUTPUT_SHORT_PRECISE: | |
9fd29044 | 333 | r = strftime(buf, sizeof(buf), "%b %d %H:%M:%S", gettime_r(&t, &tm)); |
f02d8367 ZJS |
334 | if (r > 0) { |
335 | snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), | |
609e002e | 336 | ".%06llu", (unsigned long long) (x % USEC_PER_SEC)); |
f02d8367 ZJS |
337 | } |
338 | break; | |
339 | default: | |
9fd29044 | 340 | r = strftime(buf, sizeof(buf), "%b %d %H:%M:%S", gettime_r(&t, &tm)); |
f02d8367 | 341 | } |
44bc6e1f TT |
342 | |
343 | if (r <= 0) { | |
67a12205 | 344 | log_error("Failed to format time."); |
44bc6e1f | 345 | return -EINVAL; |
67a12205 LP |
346 | } |
347 | ||
08ace05b | 348 | fputs(buf, f); |
67a12205 LP |
349 | n += strlen(buf); |
350 | } | |
86aa7ba4 | 351 | |
08ace05b LP |
352 | if (hostname && shall_print(hostname, hostname_len, flags)) { |
353 | fprintf(f, " %.*s", (int) hostname_len, hostname); | |
55d7bfc1 LP |
354 | n += hostname_len + 1; |
355 | } | |
356 | ||
08ace05b LP |
357 | if (identifier && shall_print(identifier, identifier_len, flags)) { |
358 | fprintf(f, " %.*s", (int) identifier_len, identifier); | |
4cd9a9d9 | 359 | n += identifier_len + 1; |
08ace05b LP |
360 | } else if (comm && shall_print(comm, comm_len, flags)) { |
361 | fprintf(f, " %.*s", (int) comm_len, comm); | |
55d7bfc1 | 362 | n += comm_len + 1; |
b5936820 | 363 | } else |
1248e840 | 364 | fputs(" unknown", f); |
86aa7ba4 | 365 | |
08ace05b LP |
366 | if (pid && shall_print(pid, pid_len, flags)) { |
367 | fprintf(f, "[%.*s]", (int) pid_len, pid); | |
55d7bfc1 | 368 | n += pid_len + 2; |
08ace05b LP |
369 | } else if (fake_pid && shall_print(fake_pid, fake_pid_len, flags)) { |
370 | fprintf(f, "[%.*s]", (int) fake_pid_len, fake_pid); | |
6c1e6b98 | 371 | n += fake_pid_len + 2; |
86aa7ba4 LP |
372 | } |
373 | ||
31f7bf19 | 374 | if (!(flags & OUTPUT_SHOW_ALL) && !utf8_is_printable(message, message_len)) { |
e6acda19 | 375 | char bytes[FORMAT_BYTES_MAX]; |
08ace05b | 376 | fprintf(f, ": [%s blob data]\n", format_bytes(bytes, sizeof(bytes), message_len)); |
31f7bf19 ZJS |
377 | } else { |
378 | fputs(": ", f); | |
94e0bd7d ZJS |
379 | ellipsized |= |
380 | print_multiline(f, n + 2, n_columns, flags, p, message, message_len); | |
31f7bf19 | 381 | } |
55d7bfc1 | 382 | |
d4205751 LP |
383 | if (flags & OUTPUT_CATALOG) |
384 | print_catalog(f, j); | |
385 | ||
94e0bd7d | 386 | return ellipsized; |
86aa7ba4 LP |
387 | } |
388 | ||
08ace05b LP |
389 | static int output_verbose( |
390 | FILE *f, | |
391 | sd_journal *j, | |
392 | OutputMode mode, | |
393 | unsigned n_columns, | |
394 | OutputFlags flags) { | |
395 | ||
86aa7ba4 LP |
396 | const void *data; |
397 | size_t length; | |
7fd1b19b | 398 | _cleanup_free_ char *cursor = NULL; |
86aa7ba4 | 399 | uint64_t realtime; |
f02d8367 | 400 | char ts[FORMAT_TIMESTAMP_MAX + 7]; |
86aa7ba4 LP |
401 | int r; |
402 | ||
08ace05b | 403 | assert(f); |
86aa7ba4 LP |
404 | assert(j); |
405 | ||
93b73b06 LP |
406 | sd_journal_set_data_threshold(j, 0); |
407 | ||
cf40f0be ZJS |
408 | r = sd_journal_get_data(j, "_SOURCE_REALTIME_TIMESTAMP", &data, &length); |
409 | if (r == -ENOENT) | |
410 | log_debug("Source realtime timestamp not found"); | |
411 | else if (r < 0) { | |
a72b6353 | 412 | log_full(r == -EADDRNOTAVAIL ? LOG_DEBUG : LOG_ERR, |
cf40f0be | 413 | "Failed to get source realtime timestamp: %s", strerror(-r)); |
86aa7ba4 | 414 | return r; |
cf40f0be ZJS |
415 | } else { |
416 | _cleanup_free_ char *value = NULL; | |
417 | size_t size; | |
418 | ||
419 | r = parse_field(data, length, "_SOURCE_REALTIME_TIMESTAMP=", &value, &size); | |
420 | if (r < 0) | |
da927ba9 | 421 | log_debug_errno(r, "_SOURCE_REALTIME_TIMESTAMP invalid: %m"); |
cf40f0be ZJS |
422 | else { |
423 | r = safe_atou64(value, &realtime); | |
424 | if (r < 0) | |
c33b3297 | 425 | log_debug_errno(r, "Failed to parse realtime timestamp: %m"); |
cf40f0be ZJS |
426 | } |
427 | } | |
428 | ||
429 | if (r < 0) { | |
430 | r = sd_journal_get_realtime_usec(j, &realtime); | |
431 | if (r < 0) { | |
432 | log_full(r == -EADDRNOTAVAIL ? LOG_DEBUG : LOG_ERR, | |
433 | "Failed to get realtime timestamp: %s", strerror(-r)); | |
434 | return r; | |
435 | } | |
86aa7ba4 LP |
436 | } |
437 | ||
438 | r = sd_journal_get_cursor(j, &cursor); | |
f647962d MS |
439 | if (r < 0) |
440 | return log_error_errno(r, "Failed to get cursor: %m"); | |
86aa7ba4 | 441 | |
08ace05b | 442 | fprintf(f, "%s [%s]\n", |
5ab99e07 LP |
443 | flags & OUTPUT_UTC ? |
444 | format_timestamp_us_utc(ts, sizeof(ts), realtime) : | |
445 | format_timestamp_us(ts, sizeof(ts), realtime), | |
08ace05b | 446 | cursor); |
86aa7ba4 | 447 | |
a72b6353 | 448 | JOURNAL_FOREACH_DATA_RETVAL(j, data, length, r) { |
31f7bf19 ZJS |
449 | const char *c; |
450 | int fieldlen; | |
7ac4fa7e ZJS |
451 | const char *on = "", *off = ""; |
452 | ||
31f7bf19 ZJS |
453 | c = memchr(data, '=', length); |
454 | if (!c) { | |
455 | log_error("Invalid field."); | |
456 | return -EINVAL; | |
457 | } | |
458 | fieldlen = c - (const char*) data; | |
86aa7ba4 | 459 | |
7ac4fa7e ZJS |
460 | if (flags & OUTPUT_COLOR && startswith(data, "MESSAGE=")) { |
461 | on = ANSI_HIGHLIGHT_ON; | |
462 | off = ANSI_HIGHLIGHT_OFF; | |
463 | } | |
464 | ||
465 | if (flags & OUTPUT_SHOW_ALL || | |
a6f0104a ZJS |
466 | (((length < PRINT_CHAR_THRESHOLD) || flags & OUTPUT_FULL_WIDTH) |
467 | && utf8_is_printable(data, length))) { | |
7ac4fa7e | 468 | fprintf(f, " %s%.*s=", on, fieldlen, (const char*)data); |
31f7bf19 | 469 | print_multiline(f, 4 + fieldlen + 1, 0, OUTPUT_FULL_WIDTH, 0, c + 1, length - fieldlen - 1); |
7ac4fa7e | 470 | fputs(off, f); |
31f7bf19 ZJS |
471 | } else { |
472 | char bytes[FORMAT_BYTES_MAX]; | |
86aa7ba4 | 473 | |
7ac4fa7e ZJS |
474 | fprintf(f, " %s%.*s=[%s blob data]%s\n", |
475 | on, | |
31f7bf19 ZJS |
476 | (int) (c - (const char*) data), |
477 | (const char*) data, | |
7ac4fa7e ZJS |
478 | format_bytes(bytes, sizeof(bytes), length - (c - (const char *) data) - 1), |
479 | off); | |
31f7bf19 | 480 | } |
86aa7ba4 LP |
481 | } |
482 | ||
a72b6353 ZJS |
483 | if (r < 0) |
484 | return r; | |
485 | ||
d4205751 LP |
486 | if (flags & OUTPUT_CATALOG) |
487 | print_catalog(f, j); | |
488 | ||
86aa7ba4 LP |
489 | return 0; |
490 | } | |
491 | ||
08ace05b LP |
492 | static int output_export( |
493 | FILE *f, | |
494 | sd_journal *j, | |
495 | OutputMode mode, | |
496 | unsigned n_columns, | |
497 | OutputFlags flags) { | |
498 | ||
86aa7ba4 LP |
499 | sd_id128_t boot_id; |
500 | char sid[33]; | |
501 | int r; | |
502 | usec_t realtime, monotonic; | |
7fd1b19b | 503 | _cleanup_free_ char *cursor = NULL; |
86aa7ba4 LP |
504 | const void *data; |
505 | size_t length; | |
506 | ||
507 | assert(j); | |
508 | ||
93b73b06 LP |
509 | sd_journal_set_data_threshold(j, 0); |
510 | ||
86aa7ba4 | 511 | r = sd_journal_get_realtime_usec(j, &realtime); |
f647962d MS |
512 | if (r < 0) |
513 | return log_error_errno(r, "Failed to get realtime timestamp: %m"); | |
86aa7ba4 LP |
514 | |
515 | r = sd_journal_get_monotonic_usec(j, &monotonic, &boot_id); | |
f647962d MS |
516 | if (r < 0) |
517 | return log_error_errno(r, "Failed to get monotonic timestamp: %m"); | |
86aa7ba4 LP |
518 | |
519 | r = sd_journal_get_cursor(j, &cursor); | |
f647962d MS |
520 | if (r < 0) |
521 | return log_error_errno(r, "Failed to get cursor: %m"); | |
86aa7ba4 | 522 | |
08ace05b LP |
523 | fprintf(f, |
524 | "__CURSOR=%s\n" | |
de0671ee ZJS |
525 | "__REALTIME_TIMESTAMP="USEC_FMT"\n" |
526 | "__MONOTONIC_TIMESTAMP="USEC_FMT"\n" | |
08ace05b LP |
527 | "_BOOT_ID=%s\n", |
528 | cursor, | |
de0671ee ZJS |
529 | realtime, |
530 | monotonic, | |
08ace05b | 531 | sd_id128_to_string(boot_id, sid)); |
86aa7ba4 | 532 | |
a72b6353 | 533 | JOURNAL_FOREACH_DATA_RETVAL(j, data, length, r) { |
86aa7ba4 | 534 | |
112301ae LP |
535 | /* We already printed the boot id, from the data in |
536 | * the header, hence let's suppress it here */ | |
537 | if (length >= 9 && | |
2a0e0692 | 538 | startswith(data, "_BOOT_ID=")) |
112301ae LP |
539 | continue; |
540 | ||
0ade5ffe ZJS |
541 | if (utf8_is_printable_newline(data, length, false)) |
542 | fwrite(data, length, 1, f); | |
543 | else { | |
86aa7ba4 LP |
544 | const char *c; |
545 | uint64_t le64; | |
546 | ||
547 | c = memchr(data, '=', length); | |
548 | if (!c) { | |
549 | log_error("Invalid field."); | |
550 | return -EINVAL; | |
551 | } | |
552 | ||
08ace05b LP |
553 | fwrite(data, c - (const char*) data, 1, f); |
554 | fputc('\n', f); | |
86aa7ba4 | 555 | le64 = htole64(length - (c - (const char*) data) - 1); |
08ace05b LP |
556 | fwrite(&le64, sizeof(le64), 1, f); |
557 | fwrite(c + 1, length - (c - (const char*) data) - 1, 1, f); | |
0ade5ffe | 558 | } |
86aa7ba4 | 559 | |
08ace05b | 560 | fputc('\n', f); |
86aa7ba4 LP |
561 | } |
562 | ||
a72b6353 ZJS |
563 | if (r < 0) |
564 | return r; | |
565 | ||
08ace05b | 566 | fputc('\n', f); |
86aa7ba4 LP |
567 | |
568 | return 0; | |
569 | } | |
570 | ||
240a5fe8 | 571 | void json_escape( |
08ace05b LP |
572 | FILE *f, |
573 | const char* p, | |
574 | size_t l, | |
575 | OutputFlags flags) { | |
576 | ||
577 | assert(f); | |
578 | assert(p); | |
579 | ||
93b73b06 | 580 | if (!(flags & OUTPUT_SHOW_ALL) && l >= JSON_THRESHOLD) |
08ace05b LP |
581 | |
582 | fputs("null", f); | |
583 | ||
31f7bf19 | 584 | else if (!utf8_is_printable(p, l)) { |
86aa7ba4 LP |
585 | bool not_first = false; |
586 | ||
08ace05b | 587 | fputs("[ ", f); |
86aa7ba4 LP |
588 | |
589 | while (l > 0) { | |
590 | if (not_first) | |
08ace05b | 591 | fprintf(f, ", %u", (uint8_t) *p); |
86aa7ba4 LP |
592 | else { |
593 | not_first = true; | |
08ace05b | 594 | fprintf(f, "%u", (uint8_t) *p); |
86aa7ba4 LP |
595 | } |
596 | ||
597 | p++; | |
598 | l--; | |
599 | } | |
600 | ||
08ace05b | 601 | fputs(" ]", f); |
86aa7ba4 | 602 | } else { |
08ace05b | 603 | fputc('\"', f); |
86aa7ba4 LP |
604 | |
605 | while (l > 0) { | |
606 | if (*p == '"' || *p == '\\') { | |
08ace05b LP |
607 | fputc('\\', f); |
608 | fputc(*p, f); | |
31f7bf19 ZJS |
609 | } else if (*p == '\n') |
610 | fputs("\\n", f); | |
611 | else if (*p < ' ') | |
08ace05b LP |
612 | fprintf(f, "\\u%04x", *p); |
613 | else | |
614 | fputc(*p, f); | |
86aa7ba4 LP |
615 | |
616 | p++; | |
617 | l--; | |
618 | } | |
619 | ||
08ace05b | 620 | fputc('\"', f); |
86aa7ba4 LP |
621 | } |
622 | } | |
623 | ||
08ace05b LP |
624 | static int output_json( |
625 | FILE *f, | |
626 | sd_journal *j, | |
627 | OutputMode mode, | |
628 | unsigned n_columns, | |
629 | OutputFlags flags) { | |
630 | ||
86aa7ba4 | 631 | uint64_t realtime, monotonic; |
7fd1b19b | 632 | _cleanup_free_ char *cursor = NULL; |
86aa7ba4 LP |
633 | const void *data; |
634 | size_t length; | |
635 | sd_id128_t boot_id; | |
2e729834 | 636 | char sid[33], *k; |
86aa7ba4 | 637 | int r; |
d99ae53a LP |
638 | Hashmap *h = NULL; |
639 | bool done, separator; | |
86aa7ba4 LP |
640 | |
641 | assert(j); | |
642 | ||
93b73b06 LP |
643 | sd_journal_set_data_threshold(j, flags & OUTPUT_SHOW_ALL ? 0 : JSON_THRESHOLD); |
644 | ||
86aa7ba4 | 645 | r = sd_journal_get_realtime_usec(j, &realtime); |
f647962d MS |
646 | if (r < 0) |
647 | return log_error_errno(r, "Failed to get realtime timestamp: %m"); | |
86aa7ba4 LP |
648 | |
649 | r = sd_journal_get_monotonic_usec(j, &monotonic, &boot_id); | |
f647962d MS |
650 | if (r < 0) |
651 | return log_error_errno(r, "Failed to get monotonic timestamp: %m"); | |
86aa7ba4 LP |
652 | |
653 | r = sd_journal_get_cursor(j, &cursor); | |
f647962d MS |
654 | if (r < 0) |
655 | return log_error_errno(r, "Failed to get cursor: %m"); | |
86aa7ba4 | 656 | |
a6e87e90 | 657 | if (mode == OUTPUT_JSON_PRETTY) |
08ace05b LP |
658 | fprintf(f, |
659 | "{\n" | |
660 | "\t\"__CURSOR\" : \"%s\",\n" | |
de0671ee ZJS |
661 | "\t\"__REALTIME_TIMESTAMP\" : \""USEC_FMT"\",\n" |
662 | "\t\"__MONOTONIC_TIMESTAMP\" : \""USEC_FMT"\",\n" | |
08ace05b LP |
663 | "\t\"_BOOT_ID\" : \"%s\"", |
664 | cursor, | |
de0671ee ZJS |
665 | realtime, |
666 | monotonic, | |
08ace05b | 667 | sd_id128_to_string(boot_id, sid)); |
48383c25 LP |
668 | else { |
669 | if (mode == OUTPUT_JSON_SSE) | |
670 | fputs("data: ", f); | |
671 | ||
08ace05b LP |
672 | fprintf(f, |
673 | "{ \"__CURSOR\" : \"%s\", " | |
de0671ee ZJS |
674 | "\"__REALTIME_TIMESTAMP\" : \""USEC_FMT"\", " |
675 | "\"__MONOTONIC_TIMESTAMP\" : \""USEC_FMT"\", " | |
08ace05b LP |
676 | "\"_BOOT_ID\" : \"%s\"", |
677 | cursor, | |
de0671ee ZJS |
678 | realtime, |
679 | monotonic, | |
08ace05b | 680 | sd_id128_to_string(boot_id, sid)); |
48383c25 | 681 | } |
86aa7ba4 | 682 | |
d5099efc | 683 | h = hashmap_new(&string_hash_ops); |
d99ae53a LP |
684 | if (!h) |
685 | return -ENOMEM; | |
686 | ||
687 | /* First round, iterate through the entry and count how often each field appears */ | |
a72b6353 | 688 | JOURNAL_FOREACH_DATA_RETVAL(j, data, length, r) { |
d99ae53a LP |
689 | const char *eq; |
690 | char *n; | |
691 | unsigned u; | |
86aa7ba4 | 692 | |
112301ae LP |
693 | if (length >= 9 && |
694 | memcmp(data, "_BOOT_ID=", 9) == 0) | |
695 | continue; | |
696 | ||
d99ae53a LP |
697 | eq = memchr(data, '=', length); |
698 | if (!eq) | |
699 | continue; | |
86aa7ba4 | 700 | |
d99ae53a LP |
701 | n = strndup(data, eq - (const char*) data); |
702 | if (!n) { | |
703 | r = -ENOMEM; | |
704 | goto finish; | |
705 | } | |
a6e87e90 | 706 | |
d99ae53a LP |
707 | u = PTR_TO_UINT(hashmap_get(h, n)); |
708 | if (u == 0) { | |
709 | r = hashmap_put(h, n, UINT_TO_PTR(1)); | |
710 | if (r < 0) { | |
711 | free(n); | |
712 | goto finish; | |
713 | } | |
714 | } else { | |
715 | r = hashmap_update(h, n, UINT_TO_PTR(u + 1)); | |
716 | free(n); | |
717 | if (r < 0) | |
718 | goto finish; | |
719 | } | |
86aa7ba4 LP |
720 | } |
721 | ||
a72b6353 ZJS |
722 | if (r < 0) |
723 | return r; | |
724 | ||
d99ae53a LP |
725 | separator = true; |
726 | do { | |
727 | done = true; | |
728 | ||
729 | SD_JOURNAL_FOREACH_DATA(j, data, length) { | |
730 | const char *eq; | |
731 | char *kk, *n; | |
732 | size_t m; | |
733 | unsigned u; | |
734 | ||
735 | /* We already printed the boot id, from the data in | |
736 | * the header, hence let's suppress it here */ | |
737 | if (length >= 9 && | |
738 | memcmp(data, "_BOOT_ID=", 9) == 0) | |
739 | continue; | |
740 | ||
741 | eq = memchr(data, '=', length); | |
742 | if (!eq) | |
743 | continue; | |
744 | ||
745 | if (separator) { | |
746 | if (mode == OUTPUT_JSON_PRETTY) | |
747 | fputs(",\n\t", f); | |
748 | else | |
749 | fputs(", ", f); | |
750 | } | |
751 | ||
752 | m = eq - (const char*) data; | |
753 | ||
754 | n = strndup(data, m); | |
755 | if (!n) { | |
756 | r = -ENOMEM; | |
757 | goto finish; | |
758 | } | |
759 | ||
760 | u = PTR_TO_UINT(hashmap_get2(h, n, (void**) &kk)); | |
761 | if (u == 0) { | |
762 | /* We already printed this, let's jump to the next */ | |
763 | free(n); | |
764 | separator = false; | |
765 | ||
766 | continue; | |
767 | } else if (u == 1) { | |
768 | /* Field only appears once, output it directly */ | |
769 | ||
770 | json_escape(f, data, m, flags); | |
771 | fputs(" : ", f); | |
772 | ||
773 | json_escape(f, eq + 1, length - m - 1, flags); | |
774 | ||
775 | hashmap_remove(h, n); | |
776 | free(kk); | |
777 | free(n); | |
778 | ||
779 | separator = true; | |
780 | ||
781 | continue; | |
782 | ||
783 | } else { | |
784 | /* Field appears multiple times, output it as array */ | |
785 | json_escape(f, data, m, flags); | |
786 | fputs(" : [ ", f); | |
787 | json_escape(f, eq + 1, length - m - 1, flags); | |
788 | ||
789 | /* Iterate through the end of the list */ | |
790 | ||
791 | while (sd_journal_enumerate_data(j, &data, &length) > 0) { | |
792 | if (length < m + 1) | |
793 | continue; | |
794 | ||
795 | if (memcmp(data, n, m) != 0) | |
796 | continue; | |
797 | ||
798 | if (((const char*) data)[m] != '=') | |
799 | continue; | |
800 | ||
801 | fputs(", ", f); | |
802 | json_escape(f, (const char*) data + m + 1, length - m - 1, flags); | |
803 | } | |
804 | ||
805 | fputs(" ]", f); | |
806 | ||
807 | hashmap_remove(h, n); | |
808 | free(kk); | |
809 | free(n); | |
810 | ||
811 | /* Iterate data fields form the beginning */ | |
812 | done = false; | |
813 | separator = true; | |
814 | ||
815 | break; | |
816 | } | |
817 | } | |
818 | ||
819 | } while (!done); | |
820 | ||
a6e87e90 | 821 | if (mode == OUTPUT_JSON_PRETTY) |
08ace05b | 822 | fputs("\n}\n", f); |
48383c25 LP |
823 | else if (mode == OUTPUT_JSON_SSE) |
824 | fputs("}\n\n", f); | |
a6e87e90 | 825 | else |
08ace05b | 826 | fputs(" }\n", f); |
86aa7ba4 | 827 | |
d99ae53a LP |
828 | r = 0; |
829 | ||
830 | finish: | |
831 | while ((k = hashmap_steal_first_key(h))) | |
832 | free(k); | |
833 | ||
834 | hashmap_free(h); | |
835 | ||
836 | return r; | |
86aa7ba4 LP |
837 | } |
838 | ||
08ace05b LP |
839 | static int output_cat( |
840 | FILE *f, | |
841 | sd_journal *j, | |
842 | OutputMode mode, | |
843 | unsigned n_columns, | |
844 | OutputFlags flags) { | |
845 | ||
d3f2bdbf LP |
846 | const void *data; |
847 | size_t l; | |
848 | int r; | |
849 | ||
850 | assert(j); | |
08ace05b | 851 | assert(f); |
d3f2bdbf | 852 | |
93b73b06 LP |
853 | sd_journal_set_data_threshold(j, 0); |
854 | ||
d3f2bdbf LP |
855 | r = sd_journal_get_data(j, "MESSAGE", &data, &l); |
856 | if (r < 0) { | |
c198300f LP |
857 | /* An entry without MESSAGE=? */ |
858 | if (r == -ENOENT) | |
859 | return 0; | |
860 | ||
8d3d7072 | 861 | return log_error_errno(r, "Failed to get data: %m"); |
d3f2bdbf LP |
862 | } |
863 | ||
864 | assert(l >= 8); | |
865 | ||
08ace05b LP |
866 | fwrite((const char*) data + 8, 1, l - 8, f); |
867 | fputc('\n', f); | |
d3f2bdbf LP |
868 | |
869 | return 0; | |
870 | } | |
871 | ||
08ace05b LP |
872 | static int (*output_funcs[_OUTPUT_MODE_MAX])( |
873 | FILE *f, | |
874 | sd_journal*j, | |
875 | OutputMode mode, | |
876 | unsigned n_columns, | |
877 | OutputFlags flags) = { | |
878 | ||
a6e87e90 | 879 | [OUTPUT_SHORT] = output_short, |
44bc6e1f | 880 | [OUTPUT_SHORT_ISO] = output_short, |
f02d8367 ZJS |
881 | [OUTPUT_SHORT_PRECISE] = output_short, |
882 | [OUTPUT_SHORT_MONOTONIC] = output_short, | |
86aa7ba4 LP |
883 | [OUTPUT_VERBOSE] = output_verbose, |
884 | [OUTPUT_EXPORT] = output_export, | |
d3f2bdbf | 885 | [OUTPUT_JSON] = output_json, |
a6e87e90 | 886 | [OUTPUT_JSON_PRETTY] = output_json, |
48383c25 | 887 | [OUTPUT_JSON_SSE] = output_json, |
d3f2bdbf | 888 | [OUTPUT_CAT] = output_cat |
86aa7ba4 LP |
889 | }; |
890 | ||
08ace05b LP |
891 | int output_journal( |
892 | FILE *f, | |
893 | sd_journal *j, | |
894 | OutputMode mode, | |
895 | unsigned n_columns, | |
94e0bd7d ZJS |
896 | OutputFlags flags, |
897 | bool *ellipsized) { | |
08ace05b | 898 | |
e268b81e | 899 | int ret; |
df50185b | 900 | assert(mode >= 0); |
86aa7ba4 LP |
901 | assert(mode < _OUTPUT_MODE_MAX); |
902 | ||
34a35ece LP |
903 | if (n_columns <= 0) |
904 | n_columns = columns(); | |
905 | ||
08ace05b | 906 | ret = output_funcs[mode](f, j, mode, n_columns, flags); |
e268b81e | 907 | fflush(stdout); |
94e0bd7d ZJS |
908 | |
909 | if (ellipsized && ret > 0) | |
910 | *ellipsized = true; | |
911 | ||
e268b81e | 912 | return ret; |
86aa7ba4 LP |
913 | } |
914 | ||
ea6c2dd1 LP |
915 | static int maybe_print_begin_newline(FILE *f, OutputFlags *flags) { |
916 | assert(f); | |
917 | assert(flags); | |
918 | ||
919 | if (!(*flags & OUTPUT_BEGIN_NEWLINE)) | |
920 | return 0; | |
921 | ||
922 | /* Print a beginning new line if that's request, but only once | |
923 | * on the first line we print. */ | |
924 | ||
925 | fputc('\n', f); | |
926 | *flags &= ~OUTPUT_BEGIN_NEWLINE; | |
927 | return 0; | |
928 | } | |
929 | ||
1a6c43e9 MT |
930 | static int show_journal(FILE *f, |
931 | sd_journal *j, | |
932 | OutputMode mode, | |
933 | unsigned n_columns, | |
934 | usec_t not_before, | |
935 | unsigned how_many, | |
94e0bd7d ZJS |
936 | OutputFlags flags, |
937 | bool *ellipsized) { | |
86aa7ba4 | 938 | |
86aa7ba4 | 939 | int r; |
df50185b LP |
940 | unsigned line = 0; |
941 | bool need_seek = false; | |
085d7120 | 942 | int warn_cutoff = flags & OUTPUT_WARN_CUTOFF; |
86aa7ba4 | 943 | |
1a6c43e9 | 944 | assert(j); |
df50185b LP |
945 | assert(mode >= 0); |
946 | assert(mode < _OUTPUT_MODE_MAX); | |
1946b0bd LP |
947 | |
948 | /* Seek to end */ | |
86aa7ba4 LP |
949 | r = sd_journal_seek_tail(j); |
950 | if (r < 0) | |
951 | goto finish; | |
952 | ||
df50185b LP |
953 | r = sd_journal_previous_skip(j, how_many); |
954 | if (r < 0) | |
955 | goto finish; | |
86aa7ba4 | 956 | |
df50185b LP |
957 | for (;;) { |
958 | for (;;) { | |
959 | usec_t usec; | |
960 | ||
961 | if (need_seek) { | |
962 | r = sd_journal_next(j); | |
963 | if (r < 0) | |
964 | goto finish; | |
965 | } | |
966 | ||
967 | if (r == 0) | |
968 | break; | |
86aa7ba4 | 969 | |
df50185b LP |
970 | need_seek = true; |
971 | ||
972 | if (not_before > 0) { | |
973 | r = sd_journal_get_monotonic_usec(j, &usec, NULL); | |
974 | ||
975 | /* -ESTALE is returned if the | |
976 | timestamp is not from this boot */ | |
977 | if (r == -ESTALE) | |
978 | continue; | |
979 | else if (r < 0) | |
980 | goto finish; | |
981 | ||
982 | if (usec < not_before) | |
983 | continue; | |
984 | } | |
985 | ||
986 | line ++; | |
ea6c2dd1 | 987 | maybe_print_begin_newline(f, &flags); |
df50185b | 988 | |
94e0bd7d | 989 | r = output_journal(f, j, mode, n_columns, flags, ellipsized); |
df50185b LP |
990 | if (r < 0) |
991 | goto finish; | |
992 | } | |
993 | ||
08984293 LP |
994 | if (warn_cutoff && line < how_many && not_before > 0) { |
995 | sd_id128_t boot_id; | |
996 | usec_t cutoff; | |
997 | ||
998 | /* Check whether the cutoff line is too early */ | |
999 | ||
1000 | r = sd_id128_get_boot(&boot_id); | |
1001 | if (r < 0) | |
1002 | goto finish; | |
1003 | ||
1004 | r = sd_journal_get_cutoff_monotonic_usec(j, boot_id, &cutoff, NULL); | |
1005 | if (r < 0) | |
1006 | goto finish; | |
1007 | ||
ea6c2dd1 LP |
1008 | if (r > 0 && not_before < cutoff) { |
1009 | maybe_print_begin_newline(f, &flags); | |
08ace05b | 1010 | fprintf(f, "Warning: Journal has been rotated since unit was started. Log output is incomplete or unavailable.\n"); |
ea6c2dd1 | 1011 | } |
08984293 LP |
1012 | |
1013 | warn_cutoff = false; | |
1014 | } | |
1015 | ||
085d7120 | 1016 | if (!(flags & OUTPUT_FOLLOW)) |
86aa7ba4 LP |
1017 | break; |
1018 | ||
3a43da28 | 1019 | r = sd_journal_wait(j, USEC_INFINITY); |
df50185b LP |
1020 | if (r < 0) |
1021 | goto finish; | |
1022 | ||
86aa7ba4 LP |
1023 | } |
1024 | ||
1a6c43e9 MT |
1025 | finish: |
1026 | return r; | |
1027 | } | |
1028 | ||
886a64fe | 1029 | int add_matches_for_unit(sd_journal *j, const char *unit) { |
1a6c43e9 | 1030 | int r; |
2d0b2e87 | 1031 | char *m1, *m2, *m3, *m4; |
1a6c43e9 | 1032 | |
886a64fe | 1033 | assert(j); |
1a6c43e9 MT |
1034 | assert(unit); |
1035 | ||
2d0b2e87 ZJS |
1036 | m1 = strappenda("_SYSTEMD_UNIT=", unit); |
1037 | m2 = strappenda("COREDUMP_UNIT=", unit); | |
1038 | m3 = strappenda("UNIT=", unit); | |
1039 | m4 = strappenda("OBJECT_SYSTEMD_UNIT=", unit); | |
1a6c43e9 | 1040 | |
886a64fe ZJS |
1041 | (void)( |
1042 | /* Look for messages from the service itself */ | |
1043 | (r = sd_journal_add_match(j, m1, 0)) || | |
1044 | ||
1045 | /* Look for coredumps of the service */ | |
1046 | (r = sd_journal_add_disjunction(j)) || | |
fdcd37df ZJS |
1047 | (r = sd_journal_add_match(j, "MESSAGE_ID=fc2e22bc6ee647b6b90729ab34a250b1", 0)) || |
1048 | (r = sd_journal_add_match(j, "_UID=0", 0)) || | |
886a64fe ZJS |
1049 | (r = sd_journal_add_match(j, m2, 0)) || |
1050 | ||
1051 | /* Look for messages from PID 1 about this service */ | |
1052 | (r = sd_journal_add_disjunction(j)) || | |
1053 | (r = sd_journal_add_match(j, "_PID=1", 0)) || | |
2d0b2e87 ZJS |
1054 | (r = sd_journal_add_match(j, m3, 0)) || |
1055 | ||
1056 | /* Look for messages from authorized daemons about this service */ | |
1057 | (r = sd_journal_add_disjunction(j)) || | |
1058 | (r = sd_journal_add_match(j, "_UID=0", 0)) || | |
1059 | (r = sd_journal_add_match(j, m4, 0)) | |
886a64fe | 1060 | ); |
2d0b2e87 | 1061 | |
69ae3ee0 ZJS |
1062 | if (r == 0 && endswith(unit, ".slice")) { |
1063 | char *m5 = strappend("_SYSTEMD_SLICE=", unit); | |
1064 | ||
1065 | /* Show all messages belonging to a slice */ | |
1066 | (void)( | |
1067 | (r = sd_journal_add_disjunction(j)) || | |
1068 | (r = sd_journal_add_match(j, m5, 0)) | |
1069 | ); | |
1070 | } | |
1071 | ||
886a64fe ZJS |
1072 | return r; |
1073 | } | |
1a6c43e9 | 1074 | |
886a64fe ZJS |
1075 | int add_matches_for_user_unit(sd_journal *j, const char *unit, uid_t uid) { |
1076 | int r; | |
2d0b2e87 ZJS |
1077 | char *m1, *m2, *m3, *m4; |
1078 | char muid[sizeof("_UID=") + DECIMAL_STR_MAX(uid_t)]; | |
1a6c43e9 | 1079 | |
886a64fe ZJS |
1080 | assert(j); |
1081 | assert(unit); | |
1a6c43e9 | 1082 | |
2d0b2e87 ZJS |
1083 | m1 = strappenda("_SYSTEMD_USER_UNIT=", unit); |
1084 | m2 = strappenda("USER_UNIT=", unit); | |
1085 | m3 = strappenda("COREDUMP_USER_UNIT=", unit); | |
1086 | m4 = strappenda("OBJECT_SYSTEMD_USER_UNIT=", unit); | |
de0671ee | 1087 | sprintf(muid, "_UID="UID_FMT, uid); |
1a6c43e9 | 1088 | |
886a64fe ZJS |
1089 | (void) ( |
1090 | /* Look for messages from the user service itself */ | |
1091 | (r = sd_journal_add_match(j, m1, 0)) || | |
2d0b2e87 | 1092 | (r = sd_journal_add_match(j, muid, 0)) || |
886a64fe ZJS |
1093 | |
1094 | /* Look for messages from systemd about this service */ | |
1095 | (r = sd_journal_add_disjunction(j)) || | |
1096 | (r = sd_journal_add_match(j, m2, 0)) || | |
2d0b2e87 | 1097 | (r = sd_journal_add_match(j, muid, 0)) || |
886a64fe ZJS |
1098 | |
1099 | /* Look for coredumps of the service */ | |
1100 | (r = sd_journal_add_disjunction(j)) || | |
1101 | (r = sd_journal_add_match(j, m3, 0)) || | |
2d0b2e87 ZJS |
1102 | (r = sd_journal_add_match(j, muid, 0)) || |
1103 | (r = sd_journal_add_match(j, "_UID=0", 0)) || | |
1104 | ||
1105 | /* Look for messages from authorized daemons about this service */ | |
1106 | (r = sd_journal_add_disjunction(j)) || | |
fdcd37df | 1107 | (r = sd_journal_add_match(j, m4, 0)) || |
2d0b2e87 | 1108 | (r = sd_journal_add_match(j, muid, 0)) || |
fdcd37df | 1109 | (r = sd_journal_add_match(j, "_UID=0", 0)) |
886a64fe | 1110 | ); |
69ae3ee0 ZJS |
1111 | |
1112 | if (r == 0 && endswith(unit, ".slice")) { | |
1113 | char *m5 = strappend("_SYSTEMD_SLICE=", unit); | |
1114 | ||
1115 | /* Show all messages belonging to a slice */ | |
1116 | (void)( | |
1117 | (r = sd_journal_add_disjunction(j)) || | |
1118 | (r = sd_journal_add_match(j, m5, 0)) || | |
1119 | (r = sd_journal_add_match(j, muid, 0)) | |
1120 | ); | |
1121 | } | |
1122 | ||
1a6c43e9 MT |
1123 | return r; |
1124 | } | |
1125 | ||
b6741478 | 1126 | static int get_boot_id_for_machine(const char *machine, sd_id128_t *boot_id) { |
3d94f76c | 1127 | _cleanup_close_pair_ int pair[2] = { -1, -1 }; |
a4475f57 | 1128 | _cleanup_close_ int pidnsfd = -1, mntnsfd = -1, rootfd = -1; |
b6741478 LP |
1129 | pid_t pid, child; |
1130 | siginfo_t si; | |
1131 | char buf[37]; | |
1132 | ssize_t k; | |
1133 | int r; | |
1134 | ||
1135 | assert(machine); | |
1136 | assert(boot_id); | |
1137 | ||
affcf189 | 1138 | if (!machine_name_is_valid(machine)) |
b6741478 LP |
1139 | return -EINVAL; |
1140 | ||
e04b0cdb | 1141 | r = container_get_leader(machine, &pid); |
b6741478 LP |
1142 | if (r < 0) |
1143 | return r; | |
e04b0cdb | 1144 | |
878cd7e9 | 1145 | r = namespace_open(pid, &pidnsfd, &mntnsfd, NULL, &rootfd); |
b6741478 LP |
1146 | if (r < 0) |
1147 | return r; | |
1148 | ||
e04b0cdb | 1149 | if (socketpair(AF_UNIX, SOCK_DGRAM, 0, pair) < 0) |
b6741478 LP |
1150 | return -errno; |
1151 | ||
1152 | child = fork(); | |
1153 | if (child < 0) | |
1154 | return -errno; | |
1155 | ||
1156 | if (child == 0) { | |
1157 | int fd; | |
1158 | ||
03e334a1 | 1159 | pair[0] = safe_close(pair[0]); |
b6741478 | 1160 | |
878cd7e9 | 1161 | r = namespace_enter(pidnsfd, mntnsfd, -1, rootfd); |
b6741478 LP |
1162 | if (r < 0) |
1163 | _exit(EXIT_FAILURE); | |
1164 | ||
1165 | fd = open("/proc/sys/kernel/random/boot_id", O_RDONLY|O_CLOEXEC|O_NOCTTY); | |
1166 | if (fd < 0) | |
1167 | _exit(EXIT_FAILURE); | |
1168 | ||
1169 | k = loop_read(fd, buf, 36, false); | |
03e334a1 | 1170 | safe_close(fd); |
b6741478 LP |
1171 | if (k != 36) |
1172 | _exit(EXIT_FAILURE); | |
1173 | ||
e04b0cdb | 1174 | k = send(pair[1], buf, 36, MSG_NOSIGNAL); |
b6741478 LP |
1175 | if (k != 36) |
1176 | _exit(EXIT_FAILURE); | |
1177 | ||
1178 | _exit(EXIT_SUCCESS); | |
1179 | } | |
1180 | ||
03e334a1 | 1181 | pair[1] = safe_close(pair[1]); |
b6741478 | 1182 | |
b6741478 LP |
1183 | r = wait_for_terminate(child, &si); |
1184 | if (r < 0 || si.si_code != CLD_EXITED || si.si_status != EXIT_SUCCESS) | |
1185 | return r < 0 ? r : -EIO; | |
1186 | ||
fbadf045 LP |
1187 | k = recv(pair[0], buf, 36, 0); |
1188 | if (k != 36) | |
1189 | return -EIO; | |
1190 | ||
b6741478 LP |
1191 | buf[36] = 0; |
1192 | r = sd_id128_from_string(buf, boot_id); | |
1193 | if (r < 0) | |
1194 | return r; | |
1195 | ||
1196 | return 0; | |
1197 | } | |
1198 | ||
1199 | int add_match_this_boot(sd_journal *j, const char *machine) { | |
5ec76417 ZJS |
1200 | char match[9+32+1] = "_BOOT_ID="; |
1201 | sd_id128_t boot_id; | |
1202 | int r; | |
1203 | ||
1204 | assert(j); | |
1205 | ||
b6741478 LP |
1206 | if (machine) { |
1207 | r = get_boot_id_for_machine(machine, &boot_id); | |
f647962d MS |
1208 | if (r < 0) |
1209 | return log_error_errno(r, "Failed to get boot id of container %s: %m", machine); | |
b6741478 LP |
1210 | } else { |
1211 | r = sd_id128_get_boot(&boot_id); | |
f647962d MS |
1212 | if (r < 0) |
1213 | return log_error_errno(r, "Failed to get boot id: %m"); | |
5ec76417 ZJS |
1214 | } |
1215 | ||
1216 | sd_id128_to_string(boot_id, match + 9); | |
1217 | r = sd_journal_add_match(j, match, strlen(match)); | |
f647962d MS |
1218 | if (r < 0) |
1219 | return log_error_errno(r, "Failed to add match: %m"); | |
5ec76417 ZJS |
1220 | |
1221 | r = sd_journal_add_conjunction(j); | |
1222 | if (r < 0) | |
1223 | return r; | |
1224 | ||
1225 | return 0; | |
1226 | } | |
1227 | ||
886a64fe | 1228 | int show_journal_by_unit( |
1a6c43e9 MT |
1229 | FILE *f, |
1230 | const char *unit, | |
1231 | OutputMode mode, | |
1232 | unsigned n_columns, | |
1233 | usec_t not_before, | |
1234 | unsigned how_many, | |
1235 | uid_t uid, | |
886a64fe | 1236 | OutputFlags flags, |
3c756001 LP |
1237 | int journal_open_flags, |
1238 | bool system_unit, | |
94e0bd7d | 1239 | bool *ellipsized) { |
1a6c43e9 | 1240 | |
7fd1b19b | 1241 | _cleanup_journal_close_ sd_journal*j = NULL; |
1a6c43e9 MT |
1242 | int r; |
1243 | ||
1244 | assert(mode >= 0); | |
1245 | assert(mode < _OUTPUT_MODE_MAX); | |
1246 | assert(unit); | |
1247 | ||
1a6c43e9 MT |
1248 | if (how_many <= 0) |
1249 | return 0; | |
1250 | ||
3c756001 | 1251 | r = sd_journal_open(&j, journal_open_flags); |
f9045468 | 1252 | if (r < 0) |
763c7aa2 | 1253 | return r; |
f9045468 | 1254 | |
b6741478 | 1255 | r = add_match_this_boot(j, NULL); |
5ec76417 ZJS |
1256 | if (r < 0) |
1257 | return r; | |
1258 | ||
3c756001 | 1259 | if (system_unit) |
886a64fe ZJS |
1260 | r = add_matches_for_unit(j, unit); |
1261 | else | |
1262 | r = add_matches_for_user_unit(j, unit, uid); | |
1a6c43e9 | 1263 | if (r < 0) |
763c7aa2 | 1264 | return r; |
1a6c43e9 | 1265 | |
553d2243 | 1266 | if (_unlikely_(log_get_max_level() >= LOG_DEBUG)) { |
4ad16808 ZJS |
1267 | _cleanup_free_ char *filter; |
1268 | ||
1269 | filter = journal_make_match_string(j); | |
1270 | log_debug("Journal filter: %s", filter); | |
1271 | } | |
5ec76417 | 1272 | |
94e0bd7d | 1273 | return show_journal(f, j, mode, n_columns, not_before, how_many, flags, ellipsized); |
86aa7ba4 | 1274 | } |
df50185b LP |
1275 | |
1276 | static const char *const output_mode_table[_OUTPUT_MODE_MAX] = { | |
1277 | [OUTPUT_SHORT] = "short", | |
44bc6e1f | 1278 | [OUTPUT_SHORT_ISO] = "short-iso", |
f02d8367 ZJS |
1279 | [OUTPUT_SHORT_PRECISE] = "short-precise", |
1280 | [OUTPUT_SHORT_MONOTONIC] = "short-monotonic", | |
df50185b LP |
1281 | [OUTPUT_VERBOSE] = "verbose", |
1282 | [OUTPUT_EXPORT] = "export", | |
d3f2bdbf | 1283 | [OUTPUT_JSON] = "json", |
a6e87e90 | 1284 | [OUTPUT_JSON_PRETTY] = "json-pretty", |
48383c25 | 1285 | [OUTPUT_JSON_SSE] = "json-sse", |
d3f2bdbf | 1286 | [OUTPUT_CAT] = "cat" |
df50185b LP |
1287 | }; |
1288 | ||
1289 | DEFINE_STRING_TABLE_LOOKUP(output_mode, OutputMode); |